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Merge pull request #2133

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efe70a15 Unbound: add git submodule for unbound (anonimal)
84c5a9ba Unbound: remove unbound from in-tree source (anonimal)
This commit is contained in:
Riccardo Spagni 2018-03-18 18:50:21 +02:00
commit 1f6e6001ed
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421 changed files with 5 additions and 225533 deletions
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[submodule "external/unbound"]
path = external/unbound
url = https://github.com/monero-project/unbound
branch = monero

1
external/unbound vendored Submodule

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Subproject commit 193bdc4ee3fe2b0d17e547e86512528c2614483a

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# Copyright (c) 2014-2018, The Monero Project
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are
# permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of
# conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice, this list
# of conditions and the following disclaimer in the documentation and/or other
# materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors may be
# used to endorse or promote products derived from this software without specific
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cmake_minimum_required(VERSION 2.8.7)
project(unbound C)
find_package(Threads)
include(configure_checks.cmake)
if (WIN32)
set(USE_MINI_EVENT 1)
set(USE_WINSOCK 1)
else ()
find_package(PkgConfig REQUIRED)
set(USE_MINI_EVENT 1)
endif ()
set(RETSIGTYPE void)
if(CMAKE_SYSTEM_NAME MATCHES "(SunOS|Solaris)")
add_definitions(-D_XOPEN_SOURCE=600)
else()
add_definitions(-D_GNU_SOURCE)
endif()
add_definitions(-std=c99)
add_definitions(-fPIC)
option(USE_ECDSA "Use ECDSA algorithms" ON)
option(USE_SHA2 "Enable SHA2 support" ON)
option(USE_SHA1 "Enable SHA1 support" ON)
set(ENABLE_DNSTAP 0)
set(HAVE_SSL 1)
if (CMAKE_USE_PTHREADS_INIT AND NOT CMAKE_USE_WIN32_THREADS_INIT)
set(HAVE_PTHREAD 1)
else ()
set(HAVE_PTHREAD 0)
endif ()
if (CMAKE_USE_WIN32_THREADS_INIT)
set(HAVE_WINDOWS_THREADS 1)
else ()
set(HAVE_WINDOWS_THREADS 0)
endif ()
# determine if we have libressl
check_symbol_exists(LIBRESSL_VERSION_TEXT "openssl/opensslv.h" HAVE_LIBRESSL)
# check if we have found HAVE_DECL_REALLOCARRAY already, so we can safely undefine and redefine it with value 1
if (HAVE_LIBRESSL AND HAVE_DECL_REALLOCARRAY)
unset(HAVE_DECL_REALLOCARRAY CACHE)
add_definitions(-DHAVE_DECL_REALLOCARRAY=1)
endif ()
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/config.h")
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/dnstap/dnstap_config.h.in"
"${CMAKE_CURRENT_BINARY_DIR}/dnstap/dnstap_config.h")
set(common_src
services/cache/dns.c
services/cache/infra.c
services/cache/rrset.c
util/data/dname.c
util/data/msgencode.c
util/data/msgparse.c
util/data/msgreply.c
util/data/packed_rrset.c
iterator/iterator.c
iterator/iter_delegpt.c
iterator/iter_donotq.c
iterator/iter_fwd.c
iterator/iter_hints.c
iterator/iter_priv.c
iterator/iter_resptype.c
iterator/iter_scrub.c
iterator/iter_utils.c
respip/respip.c
services/listen_dnsport.c
services/localzone.c
services/mesh.c
services/modstack.c
services/outbound_list.c
services/outside_network.c
services/view.c
util/alloc.c
util/as112.c
util/config_file.c
util/configlexer.c
util/configparser.c
util/fptr_wlist.c
util/locks.c
util/log.c
util/mini_event.c
util/module.c
util/netevent.c
util/net_help.c
util/random.c
util/rbtree.c
util/regional.c
util/rtt.c
util/storage/dnstree.c
util/storage/lookup3.c
util/storage/lruhash.c
util/storage/slabhash.c
util/timehist.c
util/tube.c
util/ub_event.c
util/winsock_event.c
validator/autotrust.c
validator/val_anchor.c
validator/validator.c
validator/val_kcache.c
validator/val_kentry.c
validator/val_neg.c
validator/val_nsec3.c
validator/val_nsec.c
validator/val_secalgo.c
validator/val_sigcrypt.c
validator/val_utils.c
dns64/dns64.c
#$(CHECKLOCK_SRC)
testcode/checklocks.c)
set(compat_src)
foreach (symbol IN ITEMS ctime_r gmtime_r inet_aton inet_ntop inet_pton isblank malloc memmove snprintf strsep strlcat strlcpy strptime explicit_bzero arc4random arc4random_uniform reallocarray)
string(TOUPPER "${symbol}" upper_sym)
if (NOT HAVE_${upper_sym})
list(APPEND compat_src
compat/${symbol}.c)
endif ()
endforeach ()
if (NOT HAVE_ARC4RANDOM)
list(APPEND compat_src
compat/arc4_lock.c)
endif ()
if (CMAKE_SYSTEM_NAME MATCHES "Linux")
list(APPEND compat_src
compat/getentropy_linux.c)
elseif (APPLE)
list(APPEND compat_src
compat/getentropy_osx.c)
#elseif (SunOS)
# list(APPEND compat_src
# compat/getentropy_solaris.c)
elseif (WIN32)
list(APPEND compat_src
compat/getentropy_win.c)
endif ()
if (NOT HAVE_GETADDRINFO)
list(APPEND compat_src
compat/fake-rfc2553.c)
endif ()
set(sldns_src
sldns/keyraw.c
sldns/sbuffer.c
sldns/wire2str.c
sldns/parse.c
sldns/parseutil.c
sldns/rrdef.c
sldns/str2wire.c)
set(libunbound_src
libunbound/context.c
libunbound/libunbound.c
libunbound/libworker.c)
include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
include_directories("${CMAKE_CURRENT_BINARY_DIR}")
include_directories(SYSTEM ${OPENSSL_INCLUDE_DIR})
add_library(unbound
${common_src}
${sldns_src}
${compat_src}
${libunbound_src})
target_link_libraries(unbound
PRIVATE
${OPENSSL_LIBRARIES}
${CMAKE_THREAD_LIBS_INIT})
if (WIN32)
target_link_libraries(unbound
PRIVATE
iphlpapi
ws2_32)
endif ()
if (MINGW)
# There is no variable for this (probably due to the fact that the pthread
# library is implicit with a link in msys).
find_library(win32pthread
NAMES libwinpthread-1.dll)
foreach (input IN LISTS win32pthread OPENSSL_LIBRARIES)
# Copy shared libraries into the build tree so that no PATH manipulation is
# necessary.
get_filename_component(name "${input}" NAME)
configure_file(
"${input}"
"${CMAKE_BINARY_DIR}/bin/${name}"
COPYONLY)
endforeach ()
endif ()
if (INSTALL_VENDORED_LIBUNBOUND)
if(IOS)
set(lib_folder lib-${ARCH})
else()
set(lib_folder lib)
endif()
install(TARGETS unbound
ARCHIVE DESTINATION ${lib_folder})
endif()

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Copyright (c) 2007, NLnet Labs. All rights reserved.
This software is open source.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
Neither the name of the NLNET LABS nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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Unbound README
* ./configure && make && make install
* You can use libevent if you want. libevent is useful when using
many (10000) outgoing ports. By default max 256 ports are opened at
the same time and the builtin alternative is equally capable and a
little faster.
* More detailed README, README.svn, README.tests in doc directory
* manual pages can be found in doc directory, and are installed, unbound(8).
* example configuration file doc/example.conf

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# ===========================================================================
# http://autoconf-archive.cryp.to/ac_pkg_swig.html
# ===========================================================================
#
# SYNOPSIS
#
# AC_PROG_SWIG([major.minor.micro])
#
# DESCRIPTION
#
# This macro searches for a SWIG installation on your system. If found you
# should call SWIG via $(SWIG). You can use the optional first argument to
# check if the version of the available SWIG is greater than or equal to
# the value of the argument. It should have the format: N[.N[.N]] (N is a
# number between 0 and 999. Only the first N is mandatory.)
#
# If the version argument is given (e.g. 1.3.17), AC_PROG_SWIG checks that
# the swig package is this version number or higher.
#
# In configure.in, use as:
#
# AC_PROG_SWIG(1.3.17)
# SWIG_ENABLE_CXX
# SWIG_MULTI_MODULE_SUPPORT
# SWIG_PYTHON
#
# LAST MODIFICATION
#
# 2008-04-12
#
# COPYLEFT
#
# Copyright (c) 2008 Sebastian Huber <sebastian-huber@web.de>
# Copyright (c) 2008 Alan W. Irwin <irwin@beluga.phys.uvic.ca>
# Copyright (c) 2008 Rafael Laboissiere <rafael@laboissiere.net>
# Copyright (c) 2008 Andrew Collier <colliera@ukzn.ac.za>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Macro Archive. When you make and
# distribute a modified version of the Autoconf Macro, you may extend this
# special exception to the GPL to apply to your modified version as well.
AC_DEFUN([AC_PROG_SWIG],[
AC_PATH_PROG([SWIG],[swig])
if test -z "$SWIG" ; then
AC_MSG_WARN([cannot find 'swig' program. You should look at http://www.swig.org])
SWIG='echo "Error: SWIG is not installed. You should look at http://www.swig.org" ; false'
elif test -n "$1" ; then
AC_MSG_CHECKING([for SWIG version])
[swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`]
AC_MSG_RESULT([$swig_version])
if test -n "$swig_version" ; then
# Calculate the required version number components
[required=$1]
[required_major=`echo $required | sed 's/[^0-9].*//'`]
if test -z "$required_major" ; then
[required_major=0]
fi
[required=`echo $required | sed 's/[0-9]*[^0-9]//'`]
[required_minor=`echo $required | sed 's/[^0-9].*//'`]
if test -z "$required_minor" ; then
[required_minor=0]
fi
[required=`echo $required | sed 's/[0-9]*[^0-9]//'`]
[required_patch=`echo $required | sed 's/[^0-9].*//'`]
if test -z "$required_patch" ; then
[required_patch=0]
fi
# Calculate the available version number components
[available=$swig_version]
[available_major=`echo $available | sed 's/[^0-9].*//'`]
if test -z "$available_major" ; then
[available_major=0]
fi
[available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
[available_minor=`echo $available | sed 's/[^0-9].*//'`]
if test -z "$available_minor" ; then
[available_minor=0]
fi
[available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
[available_patch=`echo $available | sed 's/[^0-9].*//'`]
if test -z "$available_patch" ; then
[available_patch=0]
fi
[badversion=0]
if test $available_major -lt $required_major ; then
[badversion=1]
fi
if test $available_major -eq $required_major \
-a $available_minor -lt $required_minor ; then
[badversion=1]
fi
if test $available_major -eq $required_major \
-a $available_minor -eq $required_minor \
-a $available_patch -lt $required_patch ; then
[badversion=1]
fi
if test $badversion -eq 1 ; then
AC_MSG_WARN([SWIG version >= $1 is required. You have $swig_version. You should look at http://www.swig.org])
SWIG='echo "Error: SWIG version >= $1 is required. You have '"$swig_version"'. You should look at http://www.swig.org" ; false'
else
AC_MSG_NOTICE([SWIG executable is '$SWIG'])
SWIG_LIB=`$SWIG -swiglib`
AC_MSG_NOTICE([SWIG library directory is '$SWIG_LIB'])
fi
else
AC_MSG_WARN([cannot determine SWIG version])
SWIG='echo "Error: Cannot determine SWIG version. You should look at http://www.swig.org" ; false'
fi
fi
AC_SUBST([SWIG_LIB])
])

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AC_DEFUN([AC_PYTHON_DEVEL],[
#
# Allow the use of a (user set) custom python version
#
AC_ARG_VAR([PYTHON_VERSION],[The installed Python
version to use, for example '2.3'. This string
will be appended to the Python interpreter
canonical name.])
AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]])
if test -z "$PYTHON"; then
AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
PYTHON_VERSION=""
fi
if test -z "$PYTHON_VERSION"; then
PYTHON_VERSION=`$PYTHON -c "import sys; \
print(sys.version.split()[[0]])"`
fi
#
# Check if you have distutils, else fail
#
AC_MSG_CHECKING([for the distutils Python package])
if ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_MSG_ERROR([cannot import Python module "distutils".
Please check your Python installation. The error was:
$ac_distutils_result])
PYTHON_VERSION=""
fi
#
# Check for Python include path
#
AC_MSG_CHECKING([for Python include path])
if test -z "$PYTHON_CPPFLAGS"; then
python_path=`$PYTHON -c "import distutils.sysconfig; \
print(distutils.sysconfig.get_python_inc());"`
if test -n "${python_path}"; then
python_path="-I$python_path"
fi
PYTHON_CPPFLAGS=$python_path
fi
AC_MSG_RESULT([$PYTHON_CPPFLAGS])
AC_SUBST([PYTHON_CPPFLAGS])
#
# Check for Python library path
#
AC_MSG_CHECKING([for Python library path])
if test -z "$PYTHON_LDFLAGS"; then
PYTHON_LDFLAGS=`$PYTHON -c "from distutils.sysconfig import *; \
print('-L'+get_config_var('LIBDIR')+' -L'+get_config_var('LIBDEST')+' '+get_config_var('BLDLIBRARY'));"`
fi
AC_MSG_RESULT([$PYTHON_LDFLAGS])
AC_SUBST([PYTHON_LDFLAGS])
#
# Check for site packages
#
AC_MSG_CHECKING([for Python site-packages path])
if test -z "$PYTHON_SITE_PKG"; then
PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
print(distutils.sysconfig.get_python_lib(1,0));"`
fi
AC_MSG_RESULT([$PYTHON_SITE_PKG])
AC_SUBST([PYTHON_SITE_PKG])
#
# final check to see if everything compiles alright
#
AC_MSG_CHECKING([consistency of all components of python development environment])
AC_LANG_PUSH([C])
# save current global flags
ac_save_LIBS="$LIBS"
ac_save_CPPFLAGS="$CPPFLAGS"
LIBS="$LIBS $PYTHON_LDFLAGS"
CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
AC_TRY_LINK([
#include <Python.h>
],[
Py_Initialize();
],[pythonexists=yes],[pythonexists=no])
AC_MSG_RESULT([$pythonexists])
if test ! "$pythonexists" = "yes"; then
AC_MSG_ERROR([
Could not link test program to Python. Maybe the main Python library has been
installed in some non-standard library path. If so, pass it to configure,
via the LDFLAGS environment variable.
Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib"
============================================================================
ERROR!
You probably have to install the development version of the Python package
for your distribution. The exact name of this package varies among them.
============================================================================
])
PYTHON_VERSION=""
fi
AC_LANG_POP
# turn back to default flags
CPPFLAGS="$ac_save_CPPFLAGS"
LIBS="$ac_save_LIBS"
#
# all done!
#
])

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro figures out how to build C programs using POSIX threads. It
# sets the PTHREAD_LIBS output variable to the threads library and linker
# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
# flags that are needed. (The user can also force certain compiler
# flags/libs to be tested by setting these environment variables.)
#
# Also sets PTHREAD_CC to any special C compiler that is needed for
# multi-threaded programs (defaults to the value of CC otherwise). (This
# is necessary on AIX to use the special cc_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these flags,
# but also link it with them as well. e.g. you should link with
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
#
# If you are only building threads programs, you may wish to use these
# variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# CC="$PTHREAD_CC"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
# PTHREAD_CFLAGS.
#
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
# is not found. If ACTION-IF-FOUND is not specified, the default action
# will define HAVE_PTHREAD.
#
# Please let the authors know if this macro fails on any platform, or if
# you have any other suggestions or comments. This macro was based on work
# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
# Alejandro Forero Cuervo to the autoconf macro repository. We are also
# grateful for the helpful feedback of numerous users.
#
# Updated for Autoconf 2.68 by Daniel Richard G.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 21
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
AC_DEFUN([AX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_PUSH([C])
ax_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
AC_TRY_LINK_FUNC([pthread_join], [ax_pthread_ok=yes])
AC_MSG_RESULT([$ax_pthread_ok])
if test x"$ax_pthread_ok" = xno; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
fi
# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).
# Create a list of thread flags to try. Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.
ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
# doesn't hurt to check since this sometimes defines pthreads too;
# also defines -D_REENTRANT)
# ... -mt is also the pthreads flag for HP/aCC
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
case ${host_os} in
solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
# a function called by this macro, so we could check for that, but
# who knows whether they'll stub that too in a future libc.) So,
# we'll just look for -pthreads and -lpthread first:
ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
;;
darwin*)
ax_pthread_flags="-pthread $ax_pthread_flags"
;;
esac
# Clang doesn't consider unrecognized options an error unless we specify
# -Werror. We throw in some extra Clang-specific options to ensure that
# this doesn't happen for GCC, which also accepts -Werror.
AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags])
save_CFLAGS="$CFLAGS"
ax_pthread_extra_flags="-Werror"
CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int foo(void);],[foo()])],
[AC_MSG_RESULT([yes])],
[ax_pthread_extra_flags=
AC_MSG_RESULT([no])])
CFLAGS="$save_CFLAGS"
if test x"$ax_pthread_ok" = xno; then
for flag in $ax_pthread_flags; do
case $flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
-*)
AC_MSG_CHECKING([whether pthreads work with $flag])
PTHREAD_CFLAGS="$flag"
;;
pthread-config)
AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
if test x"$ax_pthread_config" = xno; then continue; fi
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
AC_MSG_CHECKING([for the pthreads library -l$flag])
PTHREAD_LIBS="-l$flag"
;;
esac
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# need a special flag -Kthread to make this header compile.)
# We check for pthread_join because it is in -lpthread on IRIX
# while pthread_create is in libc. We check for pthread_attr_init
# due to DEC craziness with -lpthreads. We check for
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
static void routine(void *a) { *((int*)a) = 0; }
static void *start_routine(void *a) { return a; }],
[pthread_t th; pthread_attr_t attr;
pthread_create(&th, 0, start_routine, 0);
pthread_join(th, 0);
pthread_attr_init(&attr);
pthread_cleanup_push(routine, 0);
pthread_cleanup_pop(0) /* ; */])],
[ax_pthread_ok=yes],
[])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT([$ax_pthread_ok])
if test "x$ax_pthread_ok" = xyes; then
break;
fi
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
done
fi
# Various other checks:
if test "x$ax_pthread_ok" = xyes; then
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
AC_MSG_CHECKING([for joinable pthread attribute])
attr_name=unknown
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
[int attr = $attr; return attr /* ; */])],
[attr_name=$attr; break],
[])
done
AC_MSG_RESULT([$attr_name])
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$attr_name],
[Define to necessary symbol if this constant
uses a non-standard name on your system.])
fi
AC_MSG_CHECKING([if more special flags are required for pthreads])
flag=no
case ${host_os} in
aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
osf* | hpux*) flag="-D_REENTRANT";;
solaris*)
if test "$GCC" = "yes"; then
flag="-D_REENTRANT"
else
# TODO: What about Clang on Solaris?
flag="-mt -D_REENTRANT"
fi
;;
esac
AC_MSG_RESULT([$flag])
if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
[ax_cv_PTHREAD_PRIO_INHERIT], [
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
[[int i = PTHREAD_PRIO_INHERIT;]])],
[ax_cv_PTHREAD_PRIO_INHERIT=yes],
[ax_cv_PTHREAD_PRIO_INHERIT=no])
])
AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
[AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
# More AIX lossage: compile with *_r variant
if test "x$GCC" != xyes; then
case $host_os in
aix*)
AS_CASE(["x/$CC"],
[x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
[#handle absolute path differently from PATH based program lookup
AS_CASE(["x$CC"],
[x/*],
[AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
[AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
;;
esac
fi
fi
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
AC_SUBST([PTHREAD_LIBS])
AC_SUBST([PTHREAD_CFLAGS])
AC_SUBST([PTHREAD_CC])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$ax_pthread_ok" = xyes; then
ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
:
else
ax_pthread_ok=no
$2
fi
AC_LANG_POP
])dnl AX_PTHREAD

67
external/unbound/compat/arc4_lock.c vendored
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@ -1,67 +0,0 @@
/* arc4_lock.c - global lock for arc4random
*
* Copyright (c) 2014, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#define LOCKRET(func) func
#include "util/locks.h"
void _ARC4_LOCK(void);
void _ARC4_UNLOCK(void);
#ifdef THREADS_DISABLED
void _ARC4_LOCK(void)
{
}
void _ARC4_UNLOCK(void)
{
}
#else /* !THREADS_DISABLED */
static lock_quick_type arc4lock;
static int arc4lockinit = 0;
void _ARC4_LOCK(void)
{
if(!arc4lockinit) {
arc4lockinit = 1;
lock_quick_init(&arc4lock);
}
lock_quick_lock(&arc4lock);
}
void _ARC4_UNLOCK(void)
{
lock_quick_unlock(&arc4lock);
}
#endif /* THREADS_DISABLED */

236
external/unbound/compat/arc4random.c vendored
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@ -1,236 +0,0 @@
/* $OpenBSD: arc4random.c,v 1.41 2014/07/12 13:24:54 deraadt Exp $ */
/*
* Copyright (c) 1996, David Mazieres <dm@uun.org>
* Copyright (c) 2008, Damien Miller <djm@openbsd.org>
* Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
/*
* ChaCha based random number generator for OpenBSD.
*/
#include <fcntl.h>
#include <limits.h>
#include <signal.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#ifndef UB_ON_WINDOWS
#include <sys/mman.h>
#endif
#define KEYSTREAM_ONLY
#include "chacha_private.h"
#define arc4_min(a, b) ((a) < (b) ? (a) : (b))
#ifdef __GNUC__
#define inline __inline
#else /* !__GNUC__ */
#define inline
#endif /* !__GNUC__ */
#ifndef MAP_ANON
#define MAP_ANON MAP_ANONYMOUS
#endif
#define KEYSZ 32
#define IVSZ 8
#define BLOCKSZ 64
#define RSBUFSZ (16*BLOCKSZ)
/* Marked MAP_INHERIT_ZERO, so zero'd out in fork children. */
static struct {
size_t rs_have; /* valid bytes at end of rs_buf */
size_t rs_count; /* bytes till reseed */
} *rs;
/* Preserved in fork children. */
static struct {
chacha_ctx rs_chacha; /* chacha context for random keystream */
u_char rs_buf[RSBUFSZ]; /* keystream blocks */
} *rsx;
static inline void _rs_rekey(u_char *dat, size_t datlen);
static inline void
_rs_init(u_char *buf, size_t n)
{
if (n < KEYSZ + IVSZ)
return;
if (rs == NULL) {
#ifndef UB_ON_WINDOWS
if ((rs = mmap(NULL, sizeof(*rs), PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
abort();
#ifdef MAP_INHERIT_ZERO
if (minherit(rs, sizeof(*rs), MAP_INHERIT_ZERO) == -1)
abort();
#endif
#else /* WINDOWS */
rs = malloc(sizeof(*rs));
if(!rs)
abort();
#endif
}
if (rsx == NULL) {
#ifndef UB_ON_WINDOWS
if ((rsx = mmap(NULL, sizeof(*rsx), PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
abort();
#else /* WINDOWS */
rsx = malloc(sizeof(*rsx));
if(!rsx)
abort();
#endif
}
chacha_keysetup(&rsx->rs_chacha, buf, KEYSZ * 8, 0);
chacha_ivsetup(&rsx->rs_chacha, buf + KEYSZ);
}
static void
_rs_stir(void)
{
u_char rnd[KEYSZ + IVSZ];
if (getentropy(rnd, sizeof rnd) == -1) {
#ifdef SIGKILL
raise(SIGKILL);
#else
exit(9); /* windows */
#endif
}
if (!rs)
_rs_init(rnd, sizeof(rnd));
else
_rs_rekey(rnd, sizeof(rnd));
explicit_bzero(rnd, sizeof(rnd)); /* discard source seed */
/* invalidate rs_buf */
rs->rs_have = 0;
memset(rsx->rs_buf, 0, sizeof(rsx->rs_buf));
rs->rs_count = 1600000;
}
static inline void
_rs_stir_if_needed(size_t len)
{
#ifndef MAP_INHERIT_ZERO
static pid_t _rs_pid = 0;
pid_t pid = getpid();
/* If a system lacks MAP_INHERIT_ZERO, resort to getpid() */
if (_rs_pid == 0 || _rs_pid != pid) {
_rs_pid = pid;
if (rs)
rs->rs_count = 0;
}
#endif
if (!rs || rs->rs_count <= len)
_rs_stir();
if (rs->rs_count <= len)
rs->rs_count = 0;
else
rs->rs_count -= len;
}
static inline void
_rs_rekey(u_char *dat, size_t datlen)
{
#ifndef KEYSTREAM_ONLY
memset(rsx->rs_buf, 0, sizeof(rsx->rs_buf));
#endif
/* fill rs_buf with the keystream */
chacha_encrypt_bytes(&rsx->rs_chacha, rsx->rs_buf,
rsx->rs_buf, sizeof(rsx->rs_buf));
/* mix in optional user provided data */
if (dat) {
size_t i, m;
m = arc4_min(datlen, KEYSZ + IVSZ);
for (i = 0; i < m; i++)
rsx->rs_buf[i] ^= dat[i];
}
/* immediately reinit for backtracking resistance */
_rs_init(rsx->rs_buf, KEYSZ + IVSZ);
memset(rsx->rs_buf, 0, KEYSZ + IVSZ);
rs->rs_have = sizeof(rsx->rs_buf) - KEYSZ - IVSZ;
}
static inline void
_rs_random_buf(void *_buf, size_t n)
{
u_char *buf = (u_char *)_buf;
u_char *keystream;
size_t m;
_rs_stir_if_needed(n);
while (n > 0) {
if (rs->rs_have > 0) {
m = arc4_min(n, rs->rs_have);
keystream = rsx->rs_buf + sizeof(rsx->rs_buf)
- rs->rs_have;
memcpy(buf, keystream, m);
memset(keystream, 0, m);
buf += m;
n -= m;
rs->rs_have -= m;
}
if (rs->rs_have == 0)
_rs_rekey(NULL, 0);
}
}
static inline void
_rs_random_u32(uint32_t *val)
{
u_char *keystream;
_rs_stir_if_needed(sizeof(*val));
if (rs->rs_have < sizeof(*val))
_rs_rekey(NULL, 0);
keystream = rsx->rs_buf + sizeof(rsx->rs_buf) - rs->rs_have;
memcpy(val, keystream, sizeof(*val));
memset(keystream, 0, sizeof(*val));
rs->rs_have -= sizeof(*val);
}
uint32_t
arc4random(void)
{
uint32_t val;
_ARC4_LOCK();
_rs_random_u32(&val);
_ARC4_UNLOCK();
return val;
}
void
arc4random_buf(void *buf, size_t n)
{
_ARC4_LOCK();
_rs_random_buf(buf, n);
_ARC4_UNLOCK();
}

57
external/unbound/compat/arc4random_uniform.c vendored
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@ -1,57 +0,0 @@
/* $OpenBSD: arc4random_uniform.c,v 1.1 2014/07/12 13:24:54 deraadt Exp $ */
/*
* Copyright (c) 2008, Damien Miller <djm@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <stdlib.h>
/*
* Calculate a uniformly distributed random number less than upper_bound
* avoiding "modulo bias".
*
* Uniformity is achieved by generating new random numbers until the one
* returned is outside the range [0, 2**32 % upper_bound). This
* guarantees the selected random number will be inside
* [2**32 % upper_bound, 2**32) which maps back to [0, upper_bound)
* after reduction modulo upper_bound.
*/
uint32_t
arc4random_uniform(uint32_t upper_bound)
{
uint32_t r, min;
if (upper_bound < 2)
return 0;
/* 2**32 % x == (2**32 - x) % x */
min = -upper_bound % upper_bound;
/*
* This could theoretically loop forever but each retry has
* p > 0.5 (worst case, usually far better) of selecting a
* number inside the range we need, so it should rarely need
* to re-roll.
*/
for (;;) {
r = arc4random();
if (r >= min)
break;
}
return r % upper_bound;
}

222
external/unbound/compat/chacha_private.h vendored
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@ -1,222 +0,0 @@
/*
chacha-merged.c version 20080118
D. J. Bernstein
Public domain.
*/
/* $OpenBSD: chacha_private.h,v 1.2 2013/10/04 07:02:27 djm Exp $ */
typedef unsigned char u8;
typedef unsigned int u32;
typedef struct
{
u32 input[16]; /* could be compressed */
} chacha_ctx;
#define U8C(v) (v##U)
#define U32C(v) (v##U)
#define U8V(v) ((u8)(v) & U8C(0xFF))
#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF))
#define ROTL32(v, n) \
(U32V((v) << (n)) | ((v) >> (32 - (n))))
#define U8TO32_LITTLE(p) \
(((u32)((p)[0]) ) | \
((u32)((p)[1]) << 8) | \
((u32)((p)[2]) << 16) | \
((u32)((p)[3]) << 24))
#define U32TO8_LITTLE(p, v) \
do { \
(p)[0] = U8V((v) ); \
(p)[1] = U8V((v) >> 8); \
(p)[2] = U8V((v) >> 16); \
(p)[3] = U8V((v) >> 24); \
} while (0)
#define ROTATE(v,c) (ROTL32(v,c))
#define XOR(v,w) ((v) ^ (w))
#define PLUS(v,w) (U32V((v) + (w)))
#define PLUSONE(v) (PLUS((v),1))
#define QUARTERROUND(a,b,c,d) \
a = PLUS(a,b); d = ROTATE(XOR(d,a),16); \
c = PLUS(c,d); b = ROTATE(XOR(b,c),12); \
a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \
c = PLUS(c,d); b = ROTATE(XOR(b,c), 7);
static const char sigma[16] = "expand 32-byte k";
static const char tau[16] = "expand 16-byte k";
static void
chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits,u32 ATTR_UNUSED(ivbits))
{
const char *constants;
x->input[4] = U8TO32_LITTLE(k + 0);
x->input[5] = U8TO32_LITTLE(k + 4);
x->input[6] = U8TO32_LITTLE(k + 8);
x->input[7] = U8TO32_LITTLE(k + 12);
if (kbits == 256) { /* recommended */
k += 16;
constants = sigma;
} else { /* kbits == 128 */
constants = tau;
}
x->input[8] = U8TO32_LITTLE(k + 0);
x->input[9] = U8TO32_LITTLE(k + 4);
x->input[10] = U8TO32_LITTLE(k + 8);
x->input[11] = U8TO32_LITTLE(k + 12);
x->input[0] = U8TO32_LITTLE(constants + 0);
x->input[1] = U8TO32_LITTLE(constants + 4);
x->input[2] = U8TO32_LITTLE(constants + 8);
x->input[3] = U8TO32_LITTLE(constants + 12);
}
static void
chacha_ivsetup(chacha_ctx *x,const u8 *iv)
{
x->input[12] = 0;
x->input[13] = 0;
x->input[14] = U8TO32_LITTLE(iv + 0);
x->input[15] = U8TO32_LITTLE(iv + 4);
}
static void
chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u32 bytes)
{
u32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15;
u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15;
u8 *ctarget = NULL;
u8 tmp[64];
u_int i;
if (!bytes) return;
j0 = x->input[0];
j1 = x->input[1];
j2 = x->input[2];
j3 = x->input[3];
j4 = x->input[4];
j5 = x->input[5];
j6 = x->input[6];
j7 = x->input[7];
j8 = x->input[8];
j9 = x->input[9];
j10 = x->input[10];
j11 = x->input[11];
j12 = x->input[12];
j13 = x->input[13];
j14 = x->input[14];
j15 = x->input[15];
for (;;) {
if (bytes < 64) {
for (i = 0;i < bytes;++i) tmp[i] = m[i];
m = tmp;
ctarget = c;
c = tmp;
}
x0 = j0;
x1 = j1;
x2 = j2;
x3 = j3;
x4 = j4;
x5 = j5;
x6 = j6;
x7 = j7;
x8 = j8;
x9 = j9;
x10 = j10;
x11 = j11;
x12 = j12;
x13 = j13;
x14 = j14;
x15 = j15;
for (i = 20;i > 0;i -= 2) {
QUARTERROUND( x0, x4, x8,x12)
QUARTERROUND( x1, x5, x9,x13)
QUARTERROUND( x2, x6,x10,x14)
QUARTERROUND( x3, x7,x11,x15)
QUARTERROUND( x0, x5,x10,x15)
QUARTERROUND( x1, x6,x11,x12)
QUARTERROUND( x2, x7, x8,x13)
QUARTERROUND( x3, x4, x9,x14)
}
x0 = PLUS(x0,j0);
x1 = PLUS(x1,j1);
x2 = PLUS(x2,j2);
x3 = PLUS(x3,j3);
x4 = PLUS(x4,j4);
x5 = PLUS(x5,j5);
x6 = PLUS(x6,j6);
x7 = PLUS(x7,j7);
x8 = PLUS(x8,j8);
x9 = PLUS(x9,j9);
x10 = PLUS(x10,j10);
x11 = PLUS(x11,j11);
x12 = PLUS(x12,j12);
x13 = PLUS(x13,j13);
x14 = PLUS(x14,j14);
x15 = PLUS(x15,j15);
#ifndef KEYSTREAM_ONLY
x0 = XOR(x0,U8TO32_LITTLE(m + 0));
x1 = XOR(x1,U8TO32_LITTLE(m + 4));
x2 = XOR(x2,U8TO32_LITTLE(m + 8));
x3 = XOR(x3,U8TO32_LITTLE(m + 12));
x4 = XOR(x4,U8TO32_LITTLE(m + 16));
x5 = XOR(x5,U8TO32_LITTLE(m + 20));
x6 = XOR(x6,U8TO32_LITTLE(m + 24));
x7 = XOR(x7,U8TO32_LITTLE(m + 28));
x8 = XOR(x8,U8TO32_LITTLE(m + 32));
x9 = XOR(x9,U8TO32_LITTLE(m + 36));
x10 = XOR(x10,U8TO32_LITTLE(m + 40));
x11 = XOR(x11,U8TO32_LITTLE(m + 44));
x12 = XOR(x12,U8TO32_LITTLE(m + 48));
x13 = XOR(x13,U8TO32_LITTLE(m + 52));
x14 = XOR(x14,U8TO32_LITTLE(m + 56));
x15 = XOR(x15,U8TO32_LITTLE(m + 60));
#endif
j12 = PLUSONE(j12);
if (!j12) {
j13 = PLUSONE(j13);
/* stopping at 2^70 bytes per nonce is user's responsibility */
}
U32TO8_LITTLE(c + 0,x0);
U32TO8_LITTLE(c + 4,x1);
U32TO8_LITTLE(c + 8,x2);
U32TO8_LITTLE(c + 12,x3);
U32TO8_LITTLE(c + 16,x4);
U32TO8_LITTLE(c + 20,x5);
U32TO8_LITTLE(c + 24,x6);
U32TO8_LITTLE(c + 28,x7);
U32TO8_LITTLE(c + 32,x8);
U32TO8_LITTLE(c + 36,x9);
U32TO8_LITTLE(c + 40,x10);
U32TO8_LITTLE(c + 44,x11);
U32TO8_LITTLE(c + 48,x12);
U32TO8_LITTLE(c + 52,x13);
U32TO8_LITTLE(c + 56,x14);
U32TO8_LITTLE(c + 60,x15);
if (bytes <= 64) {
if (bytes < 64) {
for (i = 0;i < bytes;++i) ctarget[i] = c[i];
}
x->input[12] = j12;
x->input[13] = j13;
return;
}
bytes -= 64;
c += 64;
#ifndef KEYSTREAM_ONLY
m += 64;
#endif
}
}

42
external/unbound/compat/ctime_r.c vendored
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@ -1,42 +0,0 @@
/* taken from ldns 1.6.1 */
#include "config.h"
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#include "util/locks.h"
/** the lock for ctime buffer */
static lock_basic_type ctime_lock;
/** has it been inited */
static int ctime_r_init = 0;
/** cleanup ctime_r on exit */
static void
ctime_r_cleanup(void)
{
if(ctime_r_init) {
ctime_r_init = 0;
lock_basic_destroy(&ctime_lock);
}
}
char *ctime_r(const time_t *timep, char *buf)
{
char* result;
if(!ctime_r_init) {
/* still small race where this init can be done twice,
* which is mostly harmless */
ctime_r_init = 1;
lock_basic_init(&ctime_lock);
atexit(&ctime_r_cleanup);
}
lock_basic_lock(&ctime_lock);
result = ctime(timep);
if(buf && result) {
if(strlen(result) > 10 && result[7]==' ' && result[8]=='0')
result[8]=' '; /* fix error in windows ctime */
strcpy(buf, result);
}
lock_basic_unlock(&ctime_lock);
return result;
}

26
external/unbound/compat/explicit_bzero.c vendored
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@ -1,26 +0,0 @@
/* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
/*
* Public domain.
* Written by Matthew Dempsky.
*/
#include "config.h"
#include <string.h>
#ifdef HAVE_ATTR_WEAK
__attribute__((weak)) void
#else
void
#endif
__explicit_bzero_hook(void *ATTR_UNUSED(buf), size_t ATTR_UNUSED(len))
{
}
void
explicit_bzero(void *buf, size_t len)
{
#ifdef UB_ON_WINDOWS
SecureZeroMemory(buf, len);
#endif
memset(buf, 0, len);
__explicit_bzero_hook(buf, len);
}

225
external/unbound/compat/fake-rfc2553.c vendored
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@ -1,225 +0,0 @@
/* From openssh 4.3p2 filename openbsd-compat/fake-rfc2553.h */
/*
* Copyright (C) 2000-2003 Damien Miller. All rights reserved.
* Copyright (C) 1999 WIDE Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Pseudo-implementation of RFC2553 name / address resolution functions
*
* But these functions are not implemented correctly. The minimum subset
* is implemented for ssh use only. For example, this routine assumes
* that ai_family is AF_INET. Don't use it for another purpose.
*/
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "compat/fake-rfc2553.h"
#ifndef HAVE_GETNAMEINFO
int getnameinfo(const struct sockaddr *sa, size_t ATTR_UNUSED(salen), char *host,
size_t hostlen, char *serv, size_t servlen, int flags)
{
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
struct hostent *hp;
char tmpserv[16];
if (serv != NULL) {
snprintf(tmpserv, sizeof(tmpserv), "%d", ntohs(sin->sin_port));
if (strlcpy(serv, tmpserv, servlen) >= servlen)
return (EAI_MEMORY);
}
if (host != NULL) {
if (flags & NI_NUMERICHOST) {
if (strlcpy(host, inet_ntoa(sin->sin_addr),
hostlen) >= hostlen)
return (EAI_MEMORY);
else
return (0);
} else {
hp = gethostbyaddr((char *)&sin->sin_addr,
sizeof(struct in_addr), AF_INET);
if (hp == NULL)
return (EAI_NODATA);
if (strlcpy(host, hp->h_name, hostlen) >= hostlen)
return (EAI_MEMORY);
else
return (0);
}
}
return (0);
}
#endif /* !HAVE_GETNAMEINFO */
#ifndef HAVE_GAI_STRERROR
#ifdef HAVE_CONST_GAI_STRERROR_PROTO
const char *
#else
char *
#endif
gai_strerror(int err)
{
switch (err) {
case EAI_NODATA:
return ("no address associated with name");
case EAI_MEMORY:
return ("memory allocation failure.");
case EAI_NONAME:
return ("nodename nor servname provided, or not known");
default:
return ("unknown/invalid error.");
}
}
#endif /* !HAVE_GAI_STRERROR */
#ifndef HAVE_FREEADDRINFO
void
freeaddrinfo(struct addrinfo *ai)
{
struct addrinfo *next;
for(; ai != NULL;) {
next = ai->ai_next;
free(ai);
ai = next;
}
}
#endif /* !HAVE_FREEADDRINFO */
#ifndef HAVE_GETADDRINFO
static struct
addrinfo *malloc_ai(int port, u_long addr, const struct addrinfo *hints)
{
struct addrinfo *ai;
ai = calloc(1, sizeof(*ai) + sizeof(struct sockaddr_in));
if (ai == NULL)
return (NULL);
ai->ai_addr = (struct sockaddr *)(ai + 1);
/* XXX -- ssh doesn't use sa_len */
ai->ai_addrlen = sizeof(struct sockaddr_in);
ai->ai_addr->sa_family = ai->ai_family = AF_INET;
((struct sockaddr_in *)(ai)->ai_addr)->sin_port = port;
((struct sockaddr_in *)(ai)->ai_addr)->sin_addr.s_addr = addr;
/* XXX: the following is not generally correct, but does what we want */
if (hints->ai_socktype)
ai->ai_socktype = hints->ai_socktype;
else
ai->ai_socktype = SOCK_STREAM;
if (hints->ai_protocol)
ai->ai_protocol = hints->ai_protocol;
return (ai);
}
int
getaddrinfo(const char *hostname, const char *servname,
const struct addrinfo *hints, struct addrinfo **res)
{
struct hostent *hp;
struct servent *sp;
struct in_addr in;
int i;
long int port;
u_long addr;
port = 0;
if (servname != NULL) {
char *cp;
port = strtol(servname, &cp, 10);
if (port > 0 && port <= 65535 && *cp == '\0')
port = htons(port);
else if ((sp = getservbyname(servname, NULL)) != NULL)
port = sp->s_port;
else
port = 0;
}
if (hints && hints->ai_flags & AI_PASSIVE) {
addr = htonl(0x00000000);
if (hostname && inet_aton(hostname, &in) != 0)
addr = in.s_addr;
*res = malloc_ai(port, addr, hints);
if (*res == NULL)
return (EAI_MEMORY);
return (0);
}
if (!hostname) {
*res = malloc_ai(port, htonl(0x7f000001), hints);
if (*res == NULL)
return (EAI_MEMORY);
return (0);
}
if (inet_aton(hostname, &in)) {
*res = malloc_ai(port, in.s_addr, hints);
if (*res == NULL)
return (EAI_MEMORY);
return (0);
}
/* Don't try DNS if AI_NUMERICHOST is set */
if (hints && hints->ai_flags & AI_NUMERICHOST)
return (EAI_NONAME);
hp = gethostbyname(hostname);
if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
struct addrinfo *cur, *prev;
cur = prev = *res = NULL;
for (i = 0; hp->h_addr_list[i]; i++) {
struct in_addr *in = (struct in_addr *)hp->h_addr_list[i];
cur = malloc_ai(port, in->s_addr, hints);
if (cur == NULL) {
if (*res != NULL)
freeaddrinfo(*res);
return (EAI_MEMORY);
}
if (prev)
prev->ai_next = cur;
else
*res = cur;
prev = cur;
}
return (0);
}
return (EAI_NODATA);
}
#endif /* !HAVE_GETADDRINFO */

174
external/unbound/compat/fake-rfc2553.h vendored
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@ -1,174 +0,0 @@
/* From openssh 4.3p2 filename openbsd-compat/fake-rfc2553.h */
/*
* Copyright (C) 2000-2003 Damien Miller. All rights reserved.
* Copyright (C) 1999 WIDE Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Pseudo-implementation of RFC2553 name / address resolution functions
*
* But these functions are not implemented correctly. The minimum subset
* is implemented for ssh use only. For example, this routine assumes
* that ai_family is AF_INET. Don't use it for another purpose.
*/
#ifndef _FAKE_RFC2553_H
#define _FAKE_RFC2553_H
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <limits.h>
/*
* First, socket and INET6 related definitions
*/
#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
# define _SS_MAXSIZE 128 /* Implementation specific max size */
# define _SS_PADSIZE (_SS_MAXSIZE - sizeof (struct sockaddr))
struct sockaddr_storage {
struct sockaddr ss_sa;
char __ss_pad2[_SS_PADSIZE];
};
# define ss_family ss_sa.sa_family
#endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
#ifndef IN6_IS_ADDR_LOOPBACK
# define IN6_IS_ADDR_LOOPBACK(a) \
(((uint32_t *)(a))[0] == 0 && ((uint32_t *)(a))[1] == 0 && \
((uint32_t *)(a))[2] == 0 && ((uint32_t *)(a))[3] == htonl(1))
#endif /* !IN6_IS_ADDR_LOOPBACK */
#ifndef HAVE_STRUCT_IN6_ADDR
struct in6_addr {
uint8_t s6_addr[16];
};
#endif /* !HAVE_STRUCT_IN6_ADDR */
#ifndef HAVE_STRUCT_SOCKADDR_IN6
struct sockaddr_in6 {
unsigned short sin6_family;
uint16_t sin6_port;
uint32_t sin6_flowinfo;
struct in6_addr sin6_addr;
};
#endif /* !HAVE_STRUCT_SOCKADDR_IN6 */
#ifndef AF_INET6
/* Define it to something that should never appear */
#define AF_INET6 AF_MAX
#endif
/*
* Next, RFC2553 name / address resolution API
*/
#ifndef NI_NUMERICHOST
# define NI_NUMERICHOST (1)
#endif
#ifndef NI_NAMEREQD
# define NI_NAMEREQD (1<<1)
#endif
#ifndef NI_NUMERICSERV
# define NI_NUMERICSERV (1<<2)
#endif
#ifndef AI_PASSIVE
# define AI_PASSIVE (1)
#endif
#ifndef AI_CANONNAME
# define AI_CANONNAME (1<<1)
#endif
#ifndef AI_NUMERICHOST
# define AI_NUMERICHOST (1<<2)
#endif
#ifndef NI_MAXSERV
# define NI_MAXSERV 32
#endif /* !NI_MAXSERV */
#ifndef NI_MAXHOST
# define NI_MAXHOST 1025
#endif /* !NI_MAXHOST */
#ifndef INT_MAX
#define INT_MAX 0xffffffff
#endif
#ifndef EAI_NODATA
# define EAI_NODATA (INT_MAX - 1)
#endif
#ifndef EAI_MEMORY
# define EAI_MEMORY (INT_MAX - 2)
#endif
#ifndef EAI_NONAME
# define EAI_NONAME (INT_MAX - 3)
#endif
#ifndef EAI_SYSTEM
# define EAI_SYSTEM (INT_MAX - 4)
#endif
#ifndef HAVE_STRUCT_ADDRINFO
struct addrinfo {
int ai_flags; /* AI_PASSIVE, AI_CANONNAME */
int ai_family; /* PF_xxx */
int ai_socktype; /* SOCK_xxx */
int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
size_t ai_addrlen; /* length of ai_addr */
char *ai_canonname; /* canonical name for hostname */
struct sockaddr *ai_addr; /* binary address */
struct addrinfo *ai_next; /* next structure in linked list */
};
#endif /* !HAVE_STRUCT_ADDRINFO */
#ifndef HAVE_GETADDRINFO
#ifdef getaddrinfo
# undef getaddrinfo
#endif
#define getaddrinfo(a,b,c,d) (getaddrinfo_unbound(a,b,c,d))
int getaddrinfo(const char *, const char *,
const struct addrinfo *, struct addrinfo **);
#endif /* !HAVE_GETADDRINFO */
#if !defined(HAVE_GAI_STRERROR) && !defined(HAVE_CONST_GAI_STRERROR_PROTO)
#define gai_strerror(a) (gai_strerror_unbound(a))
char *gai_strerror(int);
#endif /* !HAVE_GAI_STRERROR */
#ifndef HAVE_FREEADDRINFO
#define freeaddrinfo(a) (freeaddrinfo_unbound(a))
void freeaddrinfo(struct addrinfo *);
#endif /* !HAVE_FREEADDRINFO */
#ifndef HAVE_GETNAMEINFO
#define getnameinfo(a,b,c,d,e,f,g) (getnameinfo_unbound(a,b,c,d,e,f,g))
int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
char *, size_t, int);
#endif /* !HAVE_GETNAMEINFO */
#endif /* !_FAKE_RFC2553_H */

566
external/unbound/compat/getentropy_linux.c vendored
View File

@ -1,566 +0,0 @@
/* $OpenBSD: getentropy_linux.c,v 1.20 2014/07/12 15:43:49 beck Exp $ */
/*
* Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
* Copyright (c) 2014 Bob Beck <beck@obtuse.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
/*
#define _POSIX_C_SOURCE 199309L
#define _GNU_SOURCE 1
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
#include <sys/syscall.h>
#ifdef HAVE_SYS_SYSCTL_H
#include <sys/sysctl.h>
#endif
#ifdef __ANDROID__
#include <sys/vfs.h>
#define statvfs statfs
#define fstatvfs fstatfs
#else
#include <sys/statvfs.h>
#endif
#include <sys/socket.h>
#include <sys/mount.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <termios.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#if defined(HAVE_SSL)
#include <openssl/sha.h>
#elif defined(HAVE_NETTLE)
#include <nettle/sha.h>
#endif
#include <linux/types.h>
#include <linux/random.h>
#include <linux/sysctl.h>
#ifdef HAVE_GETAUXVAL
#include <sys/auxv.h>
#endif
#include <sys/vfs.h>
#ifndef MAP_ANON
#define MAP_ANON MAP_ANONYMOUS
#endif
#define REPEAT 5
#define min(a, b) (((a) < (b)) ? (a) : (b))
#define HX(a, b) \
do { \
if ((a)) \
HD(errno); \
else \
HD(b); \
} while (0)
#if defined(HAVE_SSL)
#define CRYPTO_SHA512_CTX SHA512_CTX
#define CRYPTO_SHA512_INIT(x) SHA512_Init(x)
#define CRYPTO_SHA512_FINAL(r, c) SHA512_Final(r, c)
#define HR(x, l) (SHA512_Update(&ctx, (char *)(x), (l)))
#define HD(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (x)))
#define HF(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (void*)))
#elif defined(HAVE_NETTLE)
#define CRYPTO_SHA512_CTX struct sha512_ctx
#define CRYPTO_SHA512_INIT(x) sha512_init(x)
#define CRYPTO_SHA512_FINAL(r, c) sha512_digest(c, SHA512_DIGEST_SIZE, r)
#define HR(x, l) (sha512_update(&ctx, (l), (uint8_t *)(x)))
#define HD(x) (sha512_update(&ctx, sizeof (x), (uint8_t *)&(x)))
#define HF(x) (sha512_update(&ctx, sizeof (void*), (uint8_t *)&(x)))
#endif
int getentropy(void *buf, size_t len);
#ifdef CAN_REFERENCE_MAIN
extern int main(int, char *argv[]);
#endif
static int gotdata(char *buf, size_t len);
#if defined(SYS_getrandom) && defined(__NR_getrandom)
static int getentropy_getrandom(void *buf, size_t len);
#endif
static int getentropy_urandom(void *buf, size_t len);
#ifdef SYS__sysctl
static int getentropy_sysctl(void *buf, size_t len);
#endif
static int getentropy_fallback(void *buf, size_t len);
int
getentropy(void *buf, size_t len)
{
int ret = -1;
if (len > 256) {
errno = EIO;
return -1;
}
#if defined(SYS_getrandom) && defined(__NR_getrandom)
/*
* Try descriptor-less getrandom()
*/
ret = getentropy_getrandom(buf, len);
if (ret != -1)
return (ret);
if (errno != ENOSYS)
return (-1);
#endif
/*
* Try to get entropy with /dev/urandom
*
* This can fail if the process is inside a chroot or if file
* descriptors are exhausted.
*/
ret = getentropy_urandom(buf, len);
if (ret != -1)
return (ret);
#ifdef SYS__sysctl
/*
* Try to use sysctl CTL_KERN, KERN_RANDOM, RANDOM_UUID.
* sysctl is a failsafe API, so it guarantees a result. This
* should work inside a chroot, or when file descriptors are
* exhausted.
*
* However this can fail if the Linux kernel removes support
* for sysctl. Starting in 2007, there have been efforts to
* deprecate the sysctl API/ABI, and push callers towards use
* of the chroot-unavailable fd-using /proc mechanism --
* essentially the same problems as /dev/urandom.
*
* Numerous setbacks have been encountered in their deprecation
* schedule, so as of June 2014 the kernel ABI still exists on
* most Linux architectures. The sysctl() stub in libc is missing
* on some systems. There are also reports that some kernels
* spew messages to the console.
*/
ret = getentropy_sysctl(buf, len);
if (ret != -1)
return (ret);
#endif /* SYS__sysctl */
/*
* Entropy collection via /dev/urandom and sysctl have failed.
*
* No other API exists for collecting entropy. See the large
* comment block above.
*
* We have very few options:
* - Even syslog_r is unsafe to call at this low level, so
* there is no way to alert the user or program.
* - Cannot call abort() because some systems have unsafe
* corefiles.
* - Could raise(SIGKILL) resulting in silent program termination.
* - Return EIO, to hint that arc4random's stir function
* should raise(SIGKILL)
* - Do the best under the circumstances....
*
* This code path exists to bring light to the issue that Linux
* does not provide a failsafe API for entropy collection.
*
* We hope this demonstrates that Linux should either retain their
* sysctl ABI, or consider providing a new failsafe API which
* works in a chroot or when file descriptors are exhausted.
*/
#undef FAIL_INSTEAD_OF_TRYING_FALLBACK
#ifdef FAIL_INSTEAD_OF_TRYING_FALLBACK
raise(SIGKILL);
#endif
ret = getentropy_fallback(buf, len);
if (ret != -1)
return (ret);
errno = EIO;
return (ret);
}
/*
* Basic sanity checking; wish we could do better.
*/
static int
gotdata(char *buf, size_t len)
{
char any_set = 0;
size_t i;
for (i = 0; i < len; ++i)
any_set |= buf[i];
if (any_set == 0)
return -1;
return 0;
}
#if defined(SYS_getrandom) && defined(__NR_getrandom)
static int
getentropy_getrandom(void *buf, size_t len)
{
int pre_errno = errno;
int ret;
if (len > 256)
return (-1);
do {
ret = syscall(SYS_getrandom, buf, len, 0);
} while (ret == -1 && errno == EINTR);
if (ret != (int)len)
return (-1);
errno = pre_errno;
return (0);
}
#endif
static int
getentropy_urandom(void *buf, size_t len)
{
struct stat st;
size_t i;
int fd, cnt, flags;
int save_errno = errno;
start:
flags = O_RDONLY;
#ifdef O_NOFOLLOW
flags |= O_NOFOLLOW;
#endif
#ifdef O_CLOEXEC
flags |= O_CLOEXEC;
#endif
fd = open("/dev/urandom", flags, 0);
if (fd == -1) {
if (errno == EINTR)
goto start;
goto nodevrandom;
}
#ifndef O_CLOEXEC
fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
#endif
/* Lightly verify that the device node looks sane */
if (fstat(fd, &st) == -1 || !S_ISCHR(st.st_mode)) {
close(fd);
goto nodevrandom;
}
if (ioctl(fd, RNDGETENTCNT, &cnt) == -1) {
close(fd);
goto nodevrandom;
}
for (i = 0; i < len; ) {
size_t wanted = len - i;
ssize_t ret = read(fd, (char*)buf + i, wanted);
if (ret == -1) {
if (errno == EAGAIN || errno == EINTR)
continue;
close(fd);
goto nodevrandom;
}
i += ret;
}
close(fd);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
nodevrandom:
errno = EIO;
return -1;
}
#ifdef SYS__sysctl
static int
getentropy_sysctl(void *buf, size_t len)
{
static int mib[] = { CTL_KERN, KERN_RANDOM, RANDOM_UUID };
size_t i;
int save_errno = errno;
for (i = 0; i < len; ) {
size_t chunk = min(len - i, 16);
/* SYS__sysctl because some systems already removed sysctl() */
struct __sysctl_args args = {
.name = mib,
.nlen = 3,
.oldval = (char *)buf + i,
.oldlenp = &chunk,
};
if (syscall(SYS__sysctl, &args) != 0)
goto sysctlfailed;
i += chunk;
}
if (gotdata(buf, len) == 0) {
errno = save_errno;
return (0); /* satisfied */
}
sysctlfailed:
errno = EIO;
return -1;
}
#endif /* SYS__sysctl */
static int cl[] = {
CLOCK_REALTIME,
#ifdef CLOCK_MONOTONIC
CLOCK_MONOTONIC,
#endif
#ifdef CLOCK_MONOTONIC_RAW
CLOCK_MONOTONIC_RAW,
#endif
#ifdef CLOCK_TAI
CLOCK_TAI,
#endif
#ifdef CLOCK_VIRTUAL
CLOCK_VIRTUAL,
#endif
#ifdef CLOCK_UPTIME
CLOCK_UPTIME,
#endif
#ifdef CLOCK_PROCESS_CPUTIME_ID
CLOCK_PROCESS_CPUTIME_ID,
#endif
#ifdef CLOCK_THREAD_CPUTIME_ID
CLOCK_THREAD_CPUTIME_ID,
#endif
};
static int
getentropy_fallback(void *buf, size_t len)
{
uint8_t results[SHA512_DIGEST_LENGTH];
int save_errno = errno, e, pgs = getpagesize(), faster = 0, repeat;
static int cnt;
struct timespec ts;
struct timeval tv;
struct rusage ru;
sigset_t sigset;
struct stat st;
CRYPTO_SHA512_CTX ctx;
static pid_t lastpid;
pid_t pid;
size_t i, ii, m;
char *p;
pid = getpid();
if (lastpid == pid) {
faster = 1;
repeat = 2;
} else {
faster = 0;
lastpid = pid;
repeat = REPEAT;
}
for (i = 0; i < len; ) {
int j;
CRYPTO_SHA512_INIT(&ctx);
for (j = 0; j < repeat; j++) {
HX((e = gettimeofday(&tv, NULL)) == -1, tv);
if (e != -1) {
cnt += (int)tv.tv_sec;
cnt += (int)tv.tv_usec;
}
for (ii = 0; ii < sizeof(cl)/sizeof(cl[0]); ii++)
HX(clock_gettime(cl[ii], &ts) == -1, ts);
HX((pid = getpid()) == -1, pid);
HX((pid = getsid(pid)) == -1, pid);
HX((pid = getppid()) == -1, pid);
HX((pid = getpgid(0)) == -1, pid);
HX((e = getpriority(0, 0)) == -1, e);
if (!faster) {
ts.tv_sec = 0;
ts.tv_nsec = 1;
(void) nanosleep(&ts, NULL);
}
HX(sigpending(&sigset) == -1, sigset);
HX(sigprocmask(SIG_BLOCK, NULL, &sigset) == -1,
sigset);
#ifdef CAN_REFERENCE_MAIN
HF(main); /* an addr in program */
#endif
HF(getentropy); /* an addr in this library */
HF(printf); /* an addr in libc */
p = (char *)&p;
HD(p); /* an addr on stack */
p = (char *)&errno;
HD(p); /* the addr of errno */
if (i == 0) {
struct sockaddr_storage ss;
struct statvfs stvfs;
struct termios tios;
struct statfs stfs;
socklen_t ssl;
off_t off;
/*
* Prime-sized mappings encourage fragmentation;
* thus exposing some address entropy.
*/
struct mm {
size_t npg;
void *p;
} mm[] = {
{ 17, MAP_FAILED }, { 3, MAP_FAILED },
{ 11, MAP_FAILED }, { 2, MAP_FAILED },
{ 5, MAP_FAILED }, { 3, MAP_FAILED },
{ 7, MAP_FAILED }, { 1, MAP_FAILED },
{ 57, MAP_FAILED }, { 3, MAP_FAILED },
{ 131, MAP_FAILED }, { 1, MAP_FAILED },
};
for (m = 0; m < sizeof mm/sizeof(mm[0]); m++) {
HX(mm[m].p = mmap(NULL,
mm[m].npg * pgs,
PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANON, -1,
(off_t)0), mm[m].p);
if (mm[m].p != MAP_FAILED) {
size_t mo;
/* Touch some memory... */
p = mm[m].p;
mo = cnt %
(mm[m].npg * pgs - 1);
p[mo] = 1;
cnt += (int)((long)(mm[m].p)
/ pgs);
}
/* Check cnts and times... */
for (ii = 0; ii < sizeof(cl)/sizeof(cl[0]);
ii++) {
HX((e = clock_gettime(cl[ii],
&ts)) == -1, ts);
if (e != -1)
cnt += (int)ts.tv_nsec;
}
HX((e = getrusage(RUSAGE_SELF,
&ru)) == -1, ru);
if (e != -1) {
cnt += (int)ru.ru_utime.tv_sec;
cnt += (int)ru.ru_utime.tv_usec;
}
}
for (m = 0; m < sizeof mm/sizeof(mm[0]); m++) {
if (mm[m].p != MAP_FAILED)
munmap(mm[m].p, mm[m].npg * pgs);
mm[m].p = MAP_FAILED;
}
HX(stat(".", &st) == -1, st);
HX(statvfs(".", &stvfs) == -1, stvfs);
HX(statfs(".", &stfs) == -1, stfs);
HX(stat("/", &st) == -1, st);
HX(statvfs("/", &stvfs) == -1, stvfs);
HX(statfs("/", &stfs) == -1, stfs);
HX((e = fstat(0, &st)) == -1, st);
if (e == -1) {
if (S_ISREG(st.st_mode) ||
S_ISFIFO(st.st_mode) ||
S_ISSOCK(st.st_mode)) {
HX(fstatvfs(0, &stvfs) == -1,
stvfs);
HX(fstatfs(0, &stfs) == -1,
stfs);
HX((off = lseek(0, (off_t)0,
SEEK_CUR)) < 0, off);
}
if (S_ISCHR(st.st_mode)) {
HX(tcgetattr(0, &tios) == -1,
tios);
} else if (S_ISSOCK(st.st_mode)) {
memset(&ss, 0, sizeof ss);
ssl = sizeof(ss);
HX(getpeername(0,
(void *)&ss, &ssl) == -1,
ss);
}
}
HX((e = getrusage(RUSAGE_CHILDREN,
&ru)) == -1, ru);
if (e != -1) {
cnt += (int)ru.ru_utime.tv_sec;
cnt += (int)ru.ru_utime.tv_usec;
}
} else {
/* Subsequent hashes absorb previous result */
HD(results);
}
HX((e = gettimeofday(&tv, NULL)) == -1, tv);
if (e != -1) {
cnt += (int)tv.tv_sec;
cnt += (int)tv.tv_usec;
}
HD(cnt);
}
#ifdef HAVE_GETAUXVAL
# ifdef AT_RANDOM
/* Not as random as you think but we take what we are given */
p = (char *) getauxval(AT_RANDOM);
if (p)
HR(p, 16);
# endif
# ifdef AT_SYSINFO_EHDR
p = (char *) getauxval(AT_SYSINFO_EHDR);
if (p)
HR(p, pgs);
# endif
# ifdef AT_BASE
p = (char *) getauxval(AT_BASE);
if (p)
HD(p);
# endif
#endif /* HAVE_GETAUXVAL */
CRYPTO_SHA512_FINAL(results, &ctx);
memcpy((char*)buf + i, results, min(sizeof(results), len - i));
i += min(sizeof(results), len - i);
}
memset(results, 0, sizeof results);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
errno = EIO;
return -1;
}

432
external/unbound/compat/getentropy_osx.c vendored
View File

@ -1,432 +0,0 @@
/* $OpenBSD: getentropy_osx.c,v 1.3 2014/07/12 14:48:00 deraadt Exp $ */
/*
* Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
* Copyright (c) 2014 Bob Beck <beck@obtuse.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
#include <sys/syscall.h>
#include <sys/sysctl.h>
#include <sys/statvfs.h>
#include <sys/socket.h>
#include <sys/mount.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <termios.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#include <mach/mach_time.h>
#include <mach/mach_host.h>
#include <mach/host_info.h>
#include <sys/socketvar.h>
#include <sys/vmmeter.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netinet/ip_var.h>
#include <netinet/tcp_var.h>
#include <netinet/udp_var.h>
#include <CommonCrypto/CommonDigest.h>
#define SHA512_Update(a, b, c) (CC_SHA512_Update((a), (b), (c)))
#define SHA512_Init(xxx) (CC_SHA512_Init((xxx)))
#define SHA512_Final(xxx, yyy) (CC_SHA512_Final((xxx), (yyy)))
#define SHA512_CTX CC_SHA512_CTX
#define SHA512_DIGEST_LENGTH CC_SHA512_DIGEST_LENGTH
#define REPEAT 5
#define min(a, b) (((a) < (b)) ? (a) : (b))
#define HX(a, b) \
do { \
if ((a)) \
HD(errno); \
else \
HD(b); \
} while (0)
#define HR(x, l) (SHA512_Update(&ctx, (char *)(x), (l)))
#define HD(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (x)))
#define HF(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (void*)))
int getentropy(void *buf, size_t len);
#ifdef CAN_REFERENCE_MAIN
extern int main(int, char *argv[]);
#endif
static int gotdata(char *buf, size_t len);
static int getentropy_urandom(void *buf, size_t len);
static int getentropy_fallback(void *buf, size_t len);
int
getentropy(void *buf, size_t len)
{
int ret = -1;
if (len > 256) {
errno = EIO;
return -1;
}
/*
* Try to get entropy with /dev/urandom
*
* This can fail if the process is inside a chroot or if file
* descriptors are exhausted.
*/
ret = getentropy_urandom(buf, len);
if (ret != -1)
return (ret);
/*
* Entropy collection via /dev/urandom and sysctl have failed.
*
* No other API exists for collecting entropy, and we have
* no failsafe way to get it on OSX that is not sensitive
* to resource exhaustion.
*
* We have very few options:
* - Even syslog_r is unsafe to call at this low level, so
* there is no way to alert the user or program.
* - Cannot call abort() because some systems have unsafe
* corefiles.
* - Could raise(SIGKILL) resulting in silent program termination.
* - Return EIO, to hint that arc4random's stir function
* should raise(SIGKILL)
* - Do the best under the circumstances....
*
* This code path exists to bring light to the issue that OSX
* does not provide a failsafe API for entropy collection.
*
* We hope this demonstrates that OSX should consider
* providing a new failsafe API which works in a chroot or
* when file descriptors are exhausted.
*/
#undef FAIL_INSTEAD_OF_TRYING_FALLBACK
#ifdef FAIL_INSTEAD_OF_TRYING_FALLBACK
raise(SIGKILL);
#endif
ret = getentropy_fallback(buf, len);
if (ret != -1)
return (ret);
errno = EIO;
return (ret);
}
/*
* Basic sanity checking; wish we could do better.
*/
static int
gotdata(char *buf, size_t len)
{
char any_set = 0;
size_t i;
for (i = 0; i < len; ++i)
any_set |= buf[i];
if (any_set == 0)
return -1;
return 0;
}
static int
getentropy_urandom(void *buf, size_t len)
{
struct stat st;
size_t i;
int fd, flags;
int save_errno = errno;
start:
flags = O_RDONLY;
#ifdef O_NOFOLLOW
flags |= O_NOFOLLOW;
#endif
#ifdef O_CLOEXEC
flags |= O_CLOEXEC;
#endif
fd = open("/dev/urandom", flags, 0);
if (fd == -1) {
if (errno == EINTR)
goto start;
goto nodevrandom;
}
#ifndef O_CLOEXEC
fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
#endif
/* Lightly verify that the device node looks sane */
if (fstat(fd, &st) == -1 || !S_ISCHR(st.st_mode)) {
close(fd);
goto nodevrandom;
}
for (i = 0; i < len; ) {
size_t wanted = len - i;
ssize_t ret = read(fd, (char*)buf + i, wanted);
if (ret == -1) {
if (errno == EAGAIN || errno == EINTR)
continue;
close(fd);
goto nodevrandom;
}
i += ret;
}
close(fd);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
nodevrandom:
errno = EIO;
return -1;
}
static int tcpmib[] = { CTL_NET, AF_INET, IPPROTO_TCP, TCPCTL_STATS };
static int udpmib[] = { CTL_NET, AF_INET, IPPROTO_UDP, UDPCTL_STATS };
static int ipmib[] = { CTL_NET, AF_INET, IPPROTO_IP, IPCTL_STATS };
static int kmib[] = { CTL_KERN, KERN_USRSTACK };
static int hwmib[] = { CTL_HW, HW_USERMEM };
static int
getentropy_fallback(void *buf, size_t len)
{
uint8_t results[SHA512_DIGEST_LENGTH];
int save_errno = errno, e, pgs = getpagesize(), faster = 0, repeat;
static int cnt;
struct timespec ts;
struct timeval tv;
struct rusage ru;
sigset_t sigset;
struct stat st;
SHA512_CTX ctx;
static pid_t lastpid;
pid_t pid;
size_t i, ii, m;
char *p;
struct tcpstat tcpstat;
struct udpstat udpstat;
struct ipstat ipstat;
u_int64_t mach_time;
unsigned int idata;
void *addr;
pid = getpid();
if (lastpid == pid) {
faster = 1;
repeat = 2;
} else {
faster = 0;
lastpid = pid;
repeat = REPEAT;
}
for (i = 0; i < len; ) {
int j;
SHA512_Init(&ctx);
for (j = 0; j < repeat; j++) {
HX((e = gettimeofday(&tv, NULL)) == -1, tv);
if (e != -1) {
cnt += (int)tv.tv_sec;
cnt += (int)tv.tv_usec;
}
mach_time = mach_absolute_time();
HD(mach_time);
ii = sizeof(addr);
HX(sysctl(kmib, sizeof(kmib) / sizeof(kmib[0]),
&addr, &ii, NULL, 0) == -1, addr);
ii = sizeof(idata);
HX(sysctl(hwmib, sizeof(hwmib) / sizeof(hwmib[0]),
&idata, &ii, NULL, 0) == -1, idata);
ii = sizeof(tcpstat);
HX(sysctl(tcpmib, sizeof(tcpmib) / sizeof(tcpmib[0]),
&tcpstat, &ii, NULL, 0) == -1, tcpstat);
ii = sizeof(udpstat);
HX(sysctl(udpmib, sizeof(udpmib) / sizeof(udpmib[0]),
&udpstat, &ii, NULL, 0) == -1, udpstat);
ii = sizeof(ipstat);
HX(sysctl(ipmib, sizeof(ipmib) / sizeof(ipmib[0]),
&ipstat, &ii, NULL, 0) == -1, ipstat);
HX((pid = getpid()) == -1, pid);
HX((pid = getsid(pid)) == -1, pid);
HX((pid = getppid()) == -1, pid);
HX((pid = getpgid(0)) == -1, pid);
HX((e = getpriority(0, 0)) == -1, e);
if (!faster) {
ts.tv_sec = 0;
ts.tv_nsec = 1;
(void) nanosleep(&ts, NULL);
}
HX(sigpending(&sigset) == -1, sigset);
HX(sigprocmask(SIG_BLOCK, NULL, &sigset) == -1,
sigset);
#ifdef CAN_REFERENCE_MAIN
HF(main); /* an addr in program */
#endif
HF(getentropy); /* an addr in this library */
HF(printf); /* an addr in libc */
p = (char *)&p;
HD(p); /* an addr on stack */
p = (char *)&errno;
HD(p); /* the addr of errno */
if (i == 0) {
struct sockaddr_storage ss;
struct statvfs stvfs;
struct termios tios;
struct statfs stfs;
socklen_t ssl;
off_t off;
/*
* Prime-sized mappings encourage fragmentation;
* thus exposing some address entropy.
*/
struct mm {
size_t npg;
void *p;
} mm[] = {
{ 17, MAP_FAILED }, { 3, MAP_FAILED },
{ 11, MAP_FAILED }, { 2, MAP_FAILED },
{ 5, MAP_FAILED }, { 3, MAP_FAILED },
{ 7, MAP_FAILED }, { 1, MAP_FAILED },
{ 57, MAP_FAILED }, { 3, MAP_FAILED },
{ 131, MAP_FAILED }, { 1, MAP_FAILED },
};
for (m = 0; m < sizeof mm/sizeof(mm[0]); m++) {
HX(mm[m].p = mmap(NULL,
mm[m].npg * pgs,
PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANON, -1,
(off_t)0), mm[m].p);
if (mm[m].p != MAP_FAILED) {
size_t mo;
/* Touch some memory... */
p = mm[m].p;
mo = cnt %
(mm[m].npg * pgs - 1);
p[mo] = 1;
cnt += (int)((long)(mm[m].p)
/ pgs);
}
/* Check cnts and times... */
mach_time = mach_absolute_time();
HD(mach_time);
cnt += (int)mach_time;
HX((e = getrusage(RUSAGE_SELF,
&ru)) == -1, ru);
if (e != -1) {
cnt += (int)ru.ru_utime.tv_sec;
cnt += (int)ru.ru_utime.tv_usec;
}
}
for (m = 0; m < sizeof mm/sizeof(mm[0]); m++) {
if (mm[m].p != MAP_FAILED)
munmap(mm[m].p, mm[m].npg * pgs);
mm[m].p = MAP_FAILED;
}
HX(stat(".", &st) == -1, st);
HX(statvfs(".", &stvfs) == -1, stvfs);
HX(statfs(".", &stfs) == -1, stfs);
HX(stat("/", &st) == -1, st);
HX(statvfs("/", &stvfs) == -1, stvfs);
HX(statfs("/", &stfs) == -1, stfs);
HX((e = fstat(0, &st)) == -1, st);
if (e == -1) {
if (S_ISREG(st.st_mode) ||
S_ISFIFO(st.st_mode) ||
S_ISSOCK(st.st_mode)) {
HX(fstatvfs(0, &stvfs) == -1,
stvfs);
HX(fstatfs(0, &stfs) == -1,
stfs);
HX((off = lseek(0, (off_t)0,
SEEK_CUR)) < 0, off);
}
if (S_ISCHR(st.st_mode)) {
HX(tcgetattr(0, &tios) == -1,
tios);
} else if (S_ISSOCK(st.st_mode)) {
memset(&ss, 0, sizeof ss);
ssl = sizeof(ss);
HX(getpeername(0,
(void *)&ss, &ssl) == -1,
ss);
}
}
HX((e = getrusage(RUSAGE_CHILDREN,
&ru)) == -1, ru);
if (e != -1) {
cnt += (int)ru.ru_utime.tv_sec;
cnt += (int)ru.ru_utime.tv_usec;
}
} else {
/* Subsequent hashes absorb previous result */
HD(results);
}
HX((e = gettimeofday(&tv, NULL)) == -1, tv);
if (e != -1) {
cnt += (int)tv.tv_sec;
cnt += (int)tv.tv_usec;
}
HD(cnt);
}
SHA512_Final(results, &ctx);
memcpy((char*)buf + i, results, min(sizeof(results), len - i));
i += min(sizeof(results), len - i);
}
memset(results, 0, sizeof results);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
errno = EIO;
return -1;
}

441
external/unbound/compat/getentropy_solaris.c vendored
View File

@ -1,441 +0,0 @@
/* $OpenBSD: getentropy_solaris.c,v 1.3 2014/07/12 14:46:31 deraadt Exp $ */
/*
* Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
* Copyright (c) 2014 Bob Beck <beck@obtuse.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
#include <sys/syscall.h>
#include <sys/statvfs.h>
#include <sys/socket.h>
#include <sys/mount.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdlib.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include <stdio.h>
#include <termios.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#ifdef HAVE_SYS_SHA2_H
#include <sys/sha2.h>
#define SHA512_Init SHA512Init
#define SHA512_Update SHA512Update
#define SHA512_Final SHA512Final
#else
#include "openssl/sha.h"
#endif
#include <sys/vfs.h>
#include <sys/statfs.h>
#include <sys/loadavg.h>
#define REPEAT 5
#define min(a, b) (((a) < (b)) ? (a) : (b))
#define HX(a, b) \
do { \
if ((a)) \
HD(errno); \
else \
HD(b); \
} while (0)
#define HR(x, l) (SHA512_Update(&ctx, (char *)(x), (l)))
#define HD(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (x)))
#define HF(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (void*)))
int getentropy(void *buf, size_t len);
#ifdef CAN_REFERENCE_MAIN
extern int main(int, char *argv[]);
#endif
static int gotdata(char *buf, size_t len);
static int getentropy_urandom(void *buf, size_t len, const char *path,
int devfscheck);
static int getentropy_fallback(void *buf, size_t len);
int
getentropy(void *buf, size_t len)
{
int ret = -1;
if (len > 256) {
errno = EIO;
return -1;
}
/*
* Try to get entropy with /dev/urandom
*
* Solaris provides /dev/urandom as a symbolic link to
* /devices/pseudo/random@0:urandom which is provided by
* a devfs filesystem. Best practice is to use O_NOFOLLOW,
* so we must try the unpublished name directly.
*
* This can fail if the process is inside a chroot which lacks
* the devfs mount, or if file descriptors are exhausted.
*/
ret = getentropy_urandom(buf, len,
"/devices/pseudo/random@0:urandom", 1);
if (ret != -1)
return (ret);
/*
* Unfortunately, chroot spaces on Solaris are sometimes setup
* with direct device node of the well-known /dev/urandom name
* (perhaps to avoid dragging all of devfs into the space).
*
* This can fail if the process is inside a chroot or if file
* descriptors are exhausted.
*/
ret = getentropy_urandom(buf, len, "/dev/urandom", 0);
if (ret != -1)
return (ret);
/*
* Entropy collection via /dev/urandom has failed.
*
* No other API exists for collecting entropy, and we have
* no failsafe way to get it on Solaris that is not sensitive
* to resource exhaustion.
*
* We have very few options:
* - Even syslog_r is unsafe to call at this low level, so
* there is no way to alert the user or program.
* - Cannot call abort() because some systems have unsafe
* corefiles.
* - Could raise(SIGKILL) resulting in silent program termination.
* - Return EIO, to hint that arc4random's stir function
* should raise(SIGKILL)
* - Do the best under the circumstances....
*
* This code path exists to bring light to the issue that Solaris
* does not provide a failsafe API for entropy collection.
*
* We hope this demonstrates that Solaris should consider
* providing a new failsafe API which works in a chroot or
* when file descriptors are exhausted.
*/
#undef FAIL_INSTEAD_OF_TRYING_FALLBACK
#ifdef FAIL_INSTEAD_OF_TRYING_FALLBACK
raise(SIGKILL);
#endif
ret = getentropy_fallback(buf, len);
if (ret != -1)
return (ret);
errno = EIO;
return (ret);
}
/*
* Basic sanity checking; wish we could do better.
*/
static int
gotdata(char *buf, size_t len)
{
char any_set = 0;
size_t i;
for (i = 0; i < len; ++i)
any_set |= buf[i];
if (any_set == 0)
return -1;
return 0;
}
static int
getentropy_urandom(void *buf, size_t len, const char *path, int devfscheck)
{
struct stat st;
size_t i;
int fd, flags;
int save_errno = errno;
start:
flags = O_RDONLY;
#ifdef O_NOFOLLOW
flags |= O_NOFOLLOW;
#endif
#ifdef O_CLOEXEC
flags |= O_CLOEXEC;
#endif
fd = open(path, flags, 0);
if (fd == -1) {
if (errno == EINTR)
goto start;
goto nodevrandom;
}
#ifndef O_CLOEXEC
fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
#endif
/* Lightly verify that the device node looks sane */
if (fstat(fd, &st) == -1 || !S_ISCHR(st.st_mode) ||
(devfscheck && (strcmp(st.st_fstype, "devfs") != 0))) {
close(fd);
goto nodevrandom;
}
for (i = 0; i < len; ) {
size_t wanted = len - i;
ssize_t ret = read(fd, (char*)buf + i, wanted);
if (ret == -1) {
if (errno == EAGAIN || errno == EINTR)
continue;
close(fd);
goto nodevrandom;
}
i += ret;
}
close(fd);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
nodevrandom:
errno = EIO;
return -1;
}
static const int cl[] = {
CLOCK_REALTIME,
#ifdef CLOCK_MONOTONIC
CLOCK_MONOTONIC,
#endif
#ifdef CLOCK_MONOTONIC_RAW
CLOCK_MONOTONIC_RAW,
#endif
#ifdef CLOCK_TAI
CLOCK_TAI,
#endif
#ifdef CLOCK_VIRTUAL
CLOCK_VIRTUAL,
#endif
#ifdef CLOCK_UPTIME
CLOCK_UPTIME,
#endif
#ifdef CLOCK_PROCESS_CPUTIME_ID
CLOCK_PROCESS_CPUTIME_ID,
#endif
#ifdef CLOCK_THREAD_CPUTIME_ID
CLOCK_THREAD_CPUTIME_ID,
#endif
};
static int
getentropy_fallback(void *buf, size_t len)
{
uint8_t results[SHA512_DIGEST_LENGTH];
int save_errno = errno, e, pgs = getpagesize(), faster = 0, repeat;
static int cnt;
struct timespec ts;
struct timeval tv;
double loadavg[3];
struct rusage ru;
sigset_t sigset;
struct stat st;
SHA512_CTX ctx;
static pid_t lastpid;
pid_t pid;
size_t i, ii, m;
char *p;
pid = getpid();
if (lastpid == pid) {
faster = 1;
repeat = 2;
} else {
faster = 0;
lastpid = pid;
repeat = REPEAT;
}
for (i = 0; i < len; ) {
int j;
SHA512_Init(&ctx);
for (j = 0; j < repeat; j++) {
HX((e = gettimeofday(&tv, NULL)) == -1, tv);
if (e != -1) {
cnt += (int)tv.tv_sec;
cnt += (int)tv.tv_usec;
}
for (ii = 0; ii < sizeof(cl)/sizeof(cl[0]); ii++)
HX(clock_gettime(cl[ii], &ts) == -1, ts);
HX((pid = getpid()) == -1, pid);
HX((pid = getsid(pid)) == -1, pid);
HX((pid = getppid()) == -1, pid);
HX((pid = getpgid(0)) == -1, pid);
HX((e = getpriority(0, 0)) == -1, e);
HX((getloadavg(loadavg, 3) == -1), loadavg);
if (!faster) {
ts.tv_sec = 0;
ts.tv_nsec = 1;
(void) nanosleep(&ts, NULL);
}
HX(sigpending(&sigset) == -1, sigset);
HX(sigprocmask(SIG_BLOCK, NULL, &sigset) == -1,
sigset);
#ifdef CAN_REFERENCE_MAIN
HF(main); /* an addr in program */
#endif
HF(getentropy); /* an addr in this library */
HF(printf); /* an addr in libc */
p = (char *)&p;
HD(p); /* an addr on stack */
p = (char *)&errno;
HD(p); /* the addr of errno */
if (i == 0) {
struct sockaddr_storage ss;
struct statvfs stvfs;
struct termios tios;
socklen_t ssl;
off_t off;
/*
* Prime-sized mappings encourage fragmentation;
* thus exposing some address entropy.
*/
struct mm {
size_t npg;
void *p;
} mm[] = {
{ 17, MAP_FAILED }, { 3, MAP_FAILED },
{ 11, MAP_FAILED }, { 2, MAP_FAILED },
{ 5, MAP_FAILED }, { 3, MAP_FAILED },
{ 7, MAP_FAILED }, { 1, MAP_FAILED },
{ 57, MAP_FAILED }, { 3, MAP_FAILED },
{ 131, MAP_FAILED }, { 1, MAP_FAILED },
};
for (m = 0; m < sizeof mm/sizeof(mm[0]); m++) {
HX(mm[m].p = mmap(NULL,
mm[m].npg * pgs,
PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANON, -1,
(off_t)0), mm[m].p);
if (mm[m].p != MAP_FAILED) {
size_t mo;
/* Touch some memory... */
p = mm[m].p;
mo = cnt %
(mm[m].npg * pgs - 1);
p[mo] = 1;
cnt += (int)((long)(mm[m].p)
/ pgs);
}
/* Check cnts and times... */
for (ii = 0; ii < sizeof(cl)/sizeof(cl[0]);
ii++) {
HX((e = clock_gettime(cl[ii],
&ts)) == -1, ts);
if (e != -1)
cnt += (int)ts.tv_nsec;
}
HX((e = getrusage(RUSAGE_SELF,
&ru)) == -1, ru);
if (e != -1) {
cnt += (int)ru.ru_utime.tv_sec;
cnt += (int)ru.ru_utime.tv_usec;
}
}
for (m = 0; m < sizeof mm/sizeof(mm[0]); m++) {
if (mm[m].p != MAP_FAILED)
munmap(mm[m].p, mm[m].npg * pgs);
mm[m].p = MAP_FAILED;
}
HX(stat(".", &st) == -1, st);
HX(statvfs(".", &stvfs) == -1, stvfs);
HX(stat("/", &st) == -1, st);
HX(statvfs("/", &stvfs) == -1, stvfs);
HX((e = fstat(0, &st)) == -1, st);
if (e == -1) {
if (S_ISREG(st.st_mode) ||
S_ISFIFO(st.st_mode) ||
S_ISSOCK(st.st_mode)) {
HX(fstatvfs(0, &stvfs) == -1,
stvfs);
HX((off = lseek(0, (off_t)0,
SEEK_CUR)) < 0, off);
}
if (S_ISCHR(st.st_mode)) {
HX(tcgetattr(0, &tios) == -1,
tios);
} else if (S_ISSOCK(st.st_mode)) {
memset(&ss, 0, sizeof ss);
ssl = sizeof(ss);
HX(getpeername(0,
(void *)&ss, &ssl) == -1,
ss);
}
}
HX((e = getrusage(RUSAGE_CHILDREN,
&ru)) == -1, ru);
if (e != -1) {
cnt += (int)ru.ru_utime.tv_sec;
cnt += (int)ru.ru_utime.tv_usec;
}
} else {
/* Subsequent hashes absorb previous result */
HD(results);
}
HX((e = gettimeofday(&tv, NULL)) == -1, tv);
if (e != -1) {
cnt += (int)tv.tv_sec;
cnt += (int)tv.tv_usec;
}
HD(cnt);
}
SHA512_Final(results, &ctx);
memcpy((char*)buf + i, results, min(sizeof(results), len - i));
i += min(sizeof(results), len - i);
}
memset(results, 0, sizeof results);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
errno = EIO;
return -1;
}

56
external/unbound/compat/getentropy_win.c vendored
View File

@ -1,56 +0,0 @@
/* $OpenBSD$ */
/*
* Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
* Copyright (c) 2014, Bob Beck <beck@obtuse.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <windows.h>
#include <errno.h>
#include <stdint.h>
#include <sys/types.h>
#include <wincrypt.h>
#include <process.h>
int getentropy(void *buf, size_t len);
/*
* On Windows, CryptGenRandom is supposed to be a well-seeded
* cryptographically strong random number generator.
*/
int
getentropy(void *buf, size_t len)
{
HCRYPTPROV provider;
if (len > 256) {
errno = EIO;
return -1;
}
if (CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT) == 0)
goto fail;
if (CryptGenRandom(provider, len, buf) == 0) {
CryptReleaseContext(provider, 0);
goto fail;
}
CryptReleaseContext(provider, 0);
return (0);
fail:
errno = EIO;
return (-1);
}

107
external/unbound/compat/gmtime_r.c vendored
View File

@ -1,107 +0,0 @@
/*
* Taken from FreeBSD src / lib / libc / stdtime / localtime.c 1.43 revision.
* localtime.c 7.78.
* tzfile.h 1.8
* adapted to be replacement gmtime_r.
*/
#include "config.h"
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#define MONSPERYEAR 12
#define DAYSPERNYEAR 365
#define DAYSPERLYEAR 366
#define SECSPERMIN 60
#define SECSPERHOUR (60*60)
#define SECSPERDAY (24*60*60)
#define DAYSPERWEEK 7
#define TM_SUNDAY 0
#define TM_MONDAY 1
#define TM_TUESDAY 2
#define TM_WEDNESDAY 3
#define TM_THURSDAY 4
#define TM_FRIDAY 5
#define TM_SATURDAY 6
#define TM_YEAR_BASE 1900
#define EPOCH_YEAR 1970
#define EPOCH_WDAY TM_THURSDAY
#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
static const int mon_lengths[2][MONSPERYEAR] = {
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
};
static const int year_lengths[2] = {
DAYSPERNYEAR, DAYSPERLYEAR
};
static void
timesub(timep, offset, tmp)
const time_t * const timep;
const long offset;
struct tm * const tmp;
{
long days;
long rem;
long y;
int yleap;
const int * ip;
days = *timep / SECSPERDAY;
rem = *timep % SECSPERDAY;
rem += (offset);
while (rem < 0) {
rem += SECSPERDAY;
--days;
}
while (rem >= SECSPERDAY) {
rem -= SECSPERDAY;
++days;
}
tmp->tm_hour = (int) (rem / SECSPERHOUR);
rem = rem % SECSPERHOUR;
tmp->tm_min = (int) (rem / SECSPERMIN);
/*
** A positive leap second requires a special
** representation. This uses "... ??:59:60" et seq.
*/
tmp->tm_sec = (int) (rem % SECSPERMIN) ;
tmp->tm_wday = (int) ((EPOCH_WDAY + days) % DAYSPERWEEK);
if (tmp->tm_wday < 0)
tmp->tm_wday += DAYSPERWEEK;
y = EPOCH_YEAR;
#define LEAPS_THRU_END_OF(y) ((y) / 4 - (y) / 100 + (y) / 400)
while (days < 0 || days >= (long) year_lengths[yleap = isleap(y)]) {
long newy;
newy = y + days / DAYSPERNYEAR;
if (days < 0)
--newy;
days -= (newy - y) * DAYSPERNYEAR +
LEAPS_THRU_END_OF(newy - 1) -
LEAPS_THRU_END_OF(y - 1);
y = newy;
}
tmp->tm_year = y - TM_YEAR_BASE;
tmp->tm_yday = (int) days;
ip = mon_lengths[yleap];
for (tmp->tm_mon = 0; days >= (long) ip[tmp->tm_mon]; ++(tmp->tm_mon))
days = days - (long) ip[tmp->tm_mon];
tmp->tm_mday = (int) (days + 1);
tmp->tm_isdst = 0;
}
/*
* Re-entrant version of gmtime.
*/
struct tm * gmtime_r(const time_t* timep, struct tm *tm)
{
timesub(timep, 0L, tm);
return tm;
}

182
external/unbound/compat/inet_aton.c vendored
View File

@ -1,182 +0,0 @@
/* From openssh4.3p2 compat/inet_aton.c */
/*
* Copyright (c) 1983, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* -
* Portions Copyright (c) 1993 by Digital Equipment Corporation.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies, and that
* the name of Digital Equipment Corporation not be used in advertising or
* publicity pertaining to distribution of the document or software without
* specific, written prior permission.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
* -
* --Copyright--
*/
/* OPENBSD ORIGINAL: lib/libc/net/inet_addr.c */
#include <config.h>
#if !defined(HAVE_INET_ATON)
#include <sys/types.h>
#include <sys/param.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include <ctype.h>
#if 0
/*
* Ascii internet address interpretation routine.
* The value returned is in network order.
*/
in_addr_t
inet_addr(const char *cp)
{
struct in_addr val;
if (inet_aton(cp, &val))
return (val.s_addr);
return (INADDR_NONE);
}
#endif
/*
* Check whether "cp" is a valid ascii representation
* of an Internet address and convert to a binary address.
* Returns 1 if the address is valid, 0 if not.
* This replaces inet_addr, the return value from which
* cannot distinguish between failure and a local broadcast address.
*/
int
inet_aton(const char *cp, struct in_addr *addr)
{
uint32_t val;
int base, n;
char c;
unsigned int parts[4];
unsigned int *pp = parts;
c = *cp;
for (;;) {
/*
* Collect number up to ``.''.
* Values are specified as for C:
* 0x=hex, 0=octal, isdigit=decimal.
*/
if (!isdigit((unsigned char)c))
return (0);
val = 0; base = 10;
if (c == '0') {
c = *++cp;
if (c == 'x' || c == 'X')
base = 16, c = *++cp;
else
base = 8;
}
for (;;) {
if (isascii((unsigned char)c) && isdigit((unsigned char)c)) {
val = (val * base) + (c - '0');
c = *++cp;
} else if (base == 16 && isascii((unsigned char)c) && isxdigit((unsigned char)c)) {
val = (val << 4) |
(c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
c = *++cp;
} else
break;
}
if (c == '.') {
/*
* Internet format:
* a.b.c.d
* a.b.c (with c treated as 16 bits)
* a.b (with b treated as 24 bits)
*/
if (pp >= parts + 3)
return (0);
*pp++ = val;
c = *++cp;
} else
break;
}
/*
* Check for trailing characters.
*/
if (c != '\0' && (!isascii((unsigned char)c) || !isspace((unsigned char)c)))
return (0);
/*
* Concoct the address according to
* the number of parts specified.
*/
n = pp - parts + 1;
switch (n) {
case 0:
return (0); /* initial nondigit */
case 1: /* a -- 32 bits */
break;
case 2: /* a.b -- 8.24 bits */
if ((val > 0xffffff) || (parts[0] > 0xff))
return (0);
val |= parts[0] << 24;
break;
case 3: /* a.b.c -- 8.8.16 bits */
if ((val > 0xffff) || (parts[0] > 0xff) || (parts[1] > 0xff))
return (0);
val |= (parts[0] << 24) | (parts[1] << 16);
break;
case 4: /* a.b.c.d -- 8.8.8.8 bits */
if ((val > 0xff) || (parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff))
return (0);
val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
break;
}
if (addr)
addr->s_addr = htonl(val);
return (1);
}
#endif /* !defined(HAVE_INET_ATON) */

218
external/unbound/compat/inet_ntop.c vendored
View File

@ -1,218 +0,0 @@
/* From openssh 4.3p2 compat/inet_ntop.c */
/* Copyright (c) 1996 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* OPENBSD ORIGINAL: lib/libc/net/inet_ntop.c */
#include <config.h>
#ifndef HAVE_INET_NTOP
#include <sys/param.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include <string.h>
#include <errno.h>
#include <stdio.h>
#ifndef IN6ADDRSZ
#define IN6ADDRSZ 16 /* IPv6 T_AAAA */
#endif
#ifndef INT16SZ
#define INT16SZ 2 /* for systems without 16-bit ints */
#endif
/*
* WARNING: Don't even consider trying to compile this on a system where
* sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
*/
static const char *inet_ntop4(const u_char *src, char *dst, size_t size);
static const char *inet_ntop6(const u_char *src, char *dst, size_t size);
/* char *
* inet_ntop(af, src, dst, size)
* convert a network format address to presentation format.
* return:
* pointer to presentation format address (`dst'), or NULL (see errno).
* author:
* Paul Vixie, 1996.
*/
const char *
inet_ntop(int af, const void *src, char *dst, size_t size)
{
switch (af) {
case AF_INET:
return (inet_ntop4(src, dst, size));
case AF_INET6:
return (inet_ntop6(src, dst, size));
default:
#ifdef EAFNOSUPPORT
errno = EAFNOSUPPORT;
#else
errno = ENOSYS;
#endif
return (NULL);
}
/* NOTREACHED */
}
/* const char *
* inet_ntop4(src, dst, size)
* format an IPv4 address, more or less like inet_ntoa()
* return:
* `dst' (as a const)
* notes:
* (1) uses no statics
* (2) takes a u_char* not an in_addr as input
* author:
* Paul Vixie, 1996.
*/
static const char *
inet_ntop4(const u_char *src, char *dst, size_t size)
{
static const char fmt[] = "%u.%u.%u.%u";
char tmp[sizeof "255.255.255.255"];
int l;
l = snprintf(tmp, size, fmt, src[0], src[1], src[2], src[3]);
if (l <= 0 || l >= (int)size) {
errno = ENOSPC;
return (NULL);
}
strlcpy(dst, tmp, size);
return (dst);
}
/* const char *
* inet_ntop6(src, dst, size)
* convert IPv6 binary address into presentation (printable) format
* author:
* Paul Vixie, 1996.
*/
static const char *
inet_ntop6(const u_char *src, char *dst, size_t size)
{
/*
* Note that int32_t and int16_t need only be "at least" large enough
* to contain a value of the specified size. On some systems, like
* Crays, there is no such thing as an integer variable with 16 bits.
* Keep this in mind if you think this function should have been coded
* to use pointer overlays. All the world's not a VAX.
*/
char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
char *tp, *ep;
struct { int base, len; } best, cur;
u_int words[IN6ADDRSZ / INT16SZ];
int i;
int advance;
/*
* Preprocess:
* Copy the input (bytewise) array into a wordwise array.
* Find the longest run of 0x00's in src[] for :: shorthanding.
*/
memset(words, '\0', sizeof words);
for (i = 0; i < IN6ADDRSZ; i++)
words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
best.base = -1;
best.len = 0;
cur.base = -1;
cur.len = 0;
for (i = 0; i < (IN6ADDRSZ / INT16SZ); i++) {
if (words[i] == 0) {
if (cur.base == -1)
cur.base = i, cur.len = 1;
else
cur.len++;
} else {
if (cur.base != -1) {
if (best.base == -1 || cur.len > best.len)
best = cur;
cur.base = -1;
}
}
}
if (cur.base != -1) {
if (best.base == -1 || cur.len > best.len)
best = cur;
}
if (best.base != -1 && best.len < 2)
best.base = -1;
/*
* Format the result.
*/
tp = tmp;
ep = tmp + sizeof(tmp);
for (i = 0; i < (IN6ADDRSZ / INT16SZ) && tp < ep; i++) {
/* Are we inside the best run of 0x00's? */
if (best.base != -1 && i >= best.base &&
i < (best.base + best.len)) {
if (i == best.base) {
if (tp + 1 >= ep)
return (NULL);
*tp++ = ':';
}
continue;
}
/* Are we following an initial run of 0x00s or any real hex? */
if (i != 0) {
if (tp + 1 >= ep)
return (NULL);
*tp++ = ':';
}
/* Is this address an encapsulated IPv4? */
if (i == 6 && best.base == 0 &&
(best.len == 6 || (best.len == 5 && words[5] == 0xffff))) {
if (!inet_ntop4(src+12, tp, (size_t)(ep - tp)))
return (NULL);
tp += strlen(tp);
break;
}
advance = snprintf(tp, ep - tp, "%x", words[i]);
if (advance <= 0 || advance >= ep - tp)
return (NULL);
tp += advance;
}
/* Was it a trailing run of 0x00's? */
if (best.base != -1 && (best.base + best.len) == (IN6ADDRSZ / INT16SZ)) {
if (tp + 1 >= ep)
return (NULL);
*tp++ = ':';
}
if (tp + 1 >= ep)
return (NULL);
*tp++ = '\0';
/*
* Check for overflow, copy, and we're done.
*/
if ((size_t)(tp - tmp) > size) {
errno = ENOSPC;
return (NULL);
}
strlcpy(dst, tmp, size);
return (dst);
}
#endif /* !HAVE_INET_NTOP */

230
external/unbound/compat/inet_pton.c vendored
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@ -1,230 +0,0 @@
/* $KAME: inet_pton.c,v 1.5 2001/08/20 02:32:40 itojun Exp $ */
/* Copyright (c) 1996 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#include <config.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
/*
* WARNING: Don't even consider trying to compile this on a system where
* sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
*/
static int inet_pton4 (const char *src, uint8_t *dst);
static int inet_pton6 (const char *src, uint8_t *dst);
/*
*
* The definitions we might miss.
*
*/
#ifndef NS_INT16SZ
#define NS_INT16SZ 2
#endif
#ifndef NS_IN6ADDRSZ
#define NS_IN6ADDRSZ 16
#endif
#ifndef NS_INADDRSZ
#define NS_INADDRSZ 4
#endif
/* int
* inet_pton(af, src, dst)
* convert from presentation format (which usually means ASCII printable)
* to network format (which is usually some kind of binary format).
* return:
* 1 if the address was valid for the specified address family
* 0 if the address wasn't valid (`dst' is untouched in this case)
* -1 if some other error occurred (`dst' is untouched in this case, too)
* author:
* Paul Vixie, 1996.
*/
int
inet_pton(af, src, dst)
int af;
const char *src;
void *dst;
{
switch (af) {
case AF_INET:
return (inet_pton4(src, dst));
case AF_INET6:
return (inet_pton6(src, dst));
default:
#ifdef EAFNOSUPPORT
errno = EAFNOSUPPORT;
#else
errno = ENOSYS;
#endif
return (-1);
}
/* NOTREACHED */
}
/* int
* inet_pton4(src, dst)
* like inet_aton() but without all the hexadecimal and shorthand.
* return:
* 1 if `src' is a valid dotted quad, else 0.
* notice:
* does not touch `dst' unless it's returning 1.
* author:
* Paul Vixie, 1996.
*/
static int
inet_pton4(src, dst)
const char *src;
uint8_t *dst;
{
static const char digits[] = "0123456789";
int saw_digit, octets, ch;
uint8_t tmp[NS_INADDRSZ], *tp;
saw_digit = 0;
octets = 0;
*(tp = tmp) = 0;
while ((ch = *src++) != '\0') {
const char *pch;
if ((pch = strchr(digits, ch)) != NULL) {
uint32_t new = *tp * 10 + (pch - digits);
if (new > 255)
return (0);
*tp = new;
if (! saw_digit) {
if (++octets > 4)
return (0);
saw_digit = 1;
}
} else if (ch == '.' && saw_digit) {
if (octets == 4)
return (0);
*++tp = 0;
saw_digit = 0;
} else
return (0);
}
if (octets < 4)
return (0);
memcpy(dst, tmp, NS_INADDRSZ);
return (1);
}
/* int
* inet_pton6(src, dst)
* convert presentation level address to network order binary form.
* return:
* 1 if `src' is a valid [RFC1884 2.2] address, else 0.
* notice:
* (1) does not touch `dst' unless it's returning 1.
* (2) :: in a full address is silently ignored.
* credit:
* inspired by Mark Andrews.
* author:
* Paul Vixie, 1996.
*/
static int
inet_pton6(src, dst)
const char *src;
uint8_t *dst;
{
static const char xdigits_l[] = "0123456789abcdef",
xdigits_u[] = "0123456789ABCDEF";
uint8_t tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp;
const char *xdigits, *curtok;
int ch, saw_xdigit;
uint32_t val;
memset((tp = tmp), '\0', NS_IN6ADDRSZ);
endp = tp + NS_IN6ADDRSZ;
colonp = NULL;
/* Leading :: requires some special handling. */
if (*src == ':')
if (*++src != ':')
return (0);
curtok = src;
saw_xdigit = 0;
val = 0;
while ((ch = *src++) != '\0') {
const char *pch;
if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
pch = strchr((xdigits = xdigits_u), ch);
if (pch != NULL) {
val <<= 4;
val |= (pch - xdigits);
if (val > 0xffff)
return (0);
saw_xdigit = 1;
continue;
}
if (ch == ':') {
curtok = src;
if (!saw_xdigit) {
if (colonp)
return (0);
colonp = tp;
continue;
}
if (tp + NS_INT16SZ > endp)
return (0);
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
saw_xdigit = 0;
val = 0;
continue;
}
if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
inet_pton4(curtok, tp) > 0) {
tp += NS_INADDRSZ;
saw_xdigit = 0;
break; /* '\0' was seen by inet_pton4(). */
}
return (0);
}
if (saw_xdigit) {
if (tp + NS_INT16SZ > endp)
return (0);
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
}
if (colonp != NULL) {
/*
* Since some memmove()'s erroneously fail to handle
* overlapping regions, we'll do the shift by hand.
*/
const int n = tp - colonp;
int i;
for (i = 1; i <= n; i++) {
endp[- i] = colonp[n - i];
colonp[n - i] = 0;
}
tp = endp;
}
if (tp != endp)
return (0);
memcpy(dst, tmp, NS_IN6ADDRSZ);
return (1);
}

45
external/unbound/compat/isblank.c vendored
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@ -1,45 +0,0 @@
/* isblank - compatibility implementation of isblank
*
* Copyright (c) 2015, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
/* return true for a blank character: space or tab */
int isblank(int c);
/* implementation of isblank. unsigned char is the argument */
int
isblank(int c)
{
return (c==' ' || c=='\t');
}

19
external/unbound/compat/malloc.c vendored
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@ -1,19 +0,0 @@
/* Just a replacement, if the original malloc is not
GNU-compliant. See autoconf documentation. */
#include "config.h"
#undef malloc
#include <sys/types.h>
void *malloc ();
/* Allocate an N-byte block of memory from the heap.
If N is zero, allocate a 1-byte block. */
void *
rpl_malloc_unbound (size_t n)
{
if (n == 0)
n = 1;
return malloc (n);
}

25
external/unbound/compat/memcmp.c vendored
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@ -1,25 +0,0 @@
/*
* memcmp.c: memcmp compat implementation.
*
* Copyright (c) 2010, NLnet Labs. All rights reserved.
*
* See LICENSE for the license.
*/
#include <config.h>
int memcmp(const void *x, const void *y, size_t n);
int memcmp(const void *x, const void *y, size_t n)
{
const uint8_t* x8 = (const uint8_t*)x;
const uint8_t* y8 = (const uint8_t*)y;
size_t i;
for(i=0; i<n; i++) {
if(x8[i] < y8[i])
return -1;
else if(x8[i] > y8[i])
return 1;
}
return 0;
}

16
external/unbound/compat/memcmp.h vendored
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@ -1,16 +0,0 @@
/*
* memcmp.h: undef memcmp for compat.
*
* Copyright (c) 2012, NLnet Labs. All rights reserved.
*
* See LICENSE for the license.
*/
#ifndef COMPAT_MEMCMP_H
#define COMPAT_MEMCMP_H
#ifdef memcmp
/* undef here otherwise autoheader messes it up in config.h */
# undef memcmp
#endif
#endif /* COMPAT_MEMCMP_H */

43
external/unbound/compat/memmove.c vendored
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@ -1,43 +0,0 @@
/*
* memmove.c: memmove compat implementation.
*
* Copyright (c) 2001-2006, NLnet Labs. All rights reserved.
*
* See LICENSE for the license.
*/
#include <config.h>
#include <stdlib.h>
void *memmove(void *dest, const void *src, size_t n);
void *memmove(void *dest, const void *src, size_t n)
{
uint8_t* from = (uint8_t*) src;
uint8_t* to = (uint8_t*) dest;
if (from == to || n == 0)
return dest;
if (to > from && to-from < (int)n) {
/* to overlaps with from */
/* <from......> */
/* <to........> */
/* copy in reverse, to avoid overwriting from */
int i;
for(i=n-1; i>=0; i--)
to[i] = from[i];
return dest;
}
if (from > to && from-to < (int)n) {
/* to overlaps with from */
/* <from......> */
/* <to........> */
/* copy forwards, to avoid overwriting from */
size_t i;
for(i=0; i<n; i++)
to[i] = from[i];
return dest;
}
memcpy(dest, src, n);
return dest;
}

42
external/unbound/compat/reallocarray.c vendored
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@ -1,42 +0,0 @@
/* $OpenBSD: reallocarray.c,v 1.1 2014/05/08 21:43:49 deraadt Exp $ */
/*
* Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <errno.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include <limits.h>
#include <stdlib.h>
/*
* This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
* if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
*/
#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))
void *
reallocarray(void *optr, size_t nmemb, size_t size)
{
if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
nmemb > 0 && SIZE_MAX / nmemb < size) {
errno = ENOMEM;
return NULL;
}
return realloc(optr, size * nmemb);
}

477
external/unbound/compat/sha512.c vendored
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@ -1,477 +0,0 @@
/*
* FILE: sha2.c
* AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/
*
* Copyright (c) 2000-2001, Aaron D. Gifford
* All rights reserved.
*
* Modified by Jelte Jansen to fit in ldns, and not clash with any
* system-defined SHA code.
* Changes:
* - Renamed (external) functions and constants to fit ldns style
* - Removed _End and _Data functions
* - Added ldns_shaX(data, len, digest) convenience functions
* - Removed prototypes of _Transform functions and made those static
* Modified by Wouter, and trimmed, to provide SHA512 for getentropy_fallback.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $
*/
#include "config.h"
#include <string.h> /* memcpy()/memset() or bcopy()/bzero() */
#include <assert.h> /* assert() */
/* do we have sha512 header defs */
#ifndef SHA512_DIGEST_LENGTH
#define SHA512_BLOCK_LENGTH 128
#define SHA512_DIGEST_LENGTH 64
#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
typedef struct _SHA512_CTX {
uint64_t state[8];
uint64_t bitcount[2];
uint8_t buffer[SHA512_BLOCK_LENGTH];
} SHA512_CTX;
#endif /* do we have sha512 header defs */
void SHA512_Init(SHA512_CTX*);
void SHA512_Update(SHA512_CTX*, void*, size_t);
void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
unsigned char *SHA512(void *data, unsigned int data_len, unsigned char *digest);
/*** SHA-256/384/512 Machine Architecture Definitions *****************/
/*
* BYTE_ORDER NOTE:
*
* Please make sure that your system defines BYTE_ORDER. If your
* architecture is little-endian, make sure it also defines
* LITTLE_ENDIAN and that the two (BYTE_ORDER and LITTLE_ENDIAN) are
* equivalent.
*
* If your system does not define the above, then you can do so by
* hand like this:
*
* #define LITTLE_ENDIAN 1234
* #define BIG_ENDIAN 4321
*
* And for little-endian machines, add:
*
* #define BYTE_ORDER LITTLE_ENDIAN
*
* Or for big-endian machines:
*
* #define BYTE_ORDER BIG_ENDIAN
*
* The FreeBSD machine this was written on defines BYTE_ORDER
* appropriately by including <sys/types.h> (which in turn includes
* <machine/endian.h> where the appropriate definitions are actually
* made).
*/
#if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
#error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN
#endif
typedef uint8_t sha2_byte; /* Exactly 1 byte */
typedef uint32_t sha2_word32; /* Exactly 4 bytes */
#ifdef S_SPLINT_S
typedef unsigned long long sha2_word64; /* lint 8 bytes */
#else
typedef uint64_t sha2_word64; /* Exactly 8 bytes */
#endif
/*** SHA-256/384/512 Various Length Definitions ***********************/
#define SHA512_SHORT_BLOCK_LENGTH (SHA512_BLOCK_LENGTH - 16)
/*** ENDIAN REVERSAL MACROS *******************************************/
#if BYTE_ORDER == LITTLE_ENDIAN
#define REVERSE32(w,x) { \
sha2_word32 tmp = (w); \
tmp = (tmp >> 16) | (tmp << 16); \
(x) = ((tmp & 0xff00ff00UL) >> 8) | ((tmp & 0x00ff00ffUL) << 8); \
}
#ifndef S_SPLINT_S
#define REVERSE64(w,x) { \
sha2_word64 tmp = (w); \
tmp = (tmp >> 32) | (tmp << 32); \
tmp = ((tmp & 0xff00ff00ff00ff00ULL) >> 8) | \
((tmp & 0x00ff00ff00ff00ffULL) << 8); \
(x) = ((tmp & 0xffff0000ffff0000ULL) >> 16) | \
((tmp & 0x0000ffff0000ffffULL) << 16); \
}
#else /* splint */
#define REVERSE64(w,x) /* splint */
#endif /* splint */
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
/*
* Macro for incrementally adding the unsigned 64-bit integer n to the
* unsigned 128-bit integer (represented using a two-element array of
* 64-bit words):
*/
#define ADDINC128(w,n) { \
(w)[0] += (sha2_word64)(n); \
if ((w)[0] < (n)) { \
(w)[1]++; \
} \
}
#ifdef S_SPLINT_S
#undef ADDINC128
#define ADDINC128(w,n) /* splint */
#endif
/*
* Macros for copying blocks of memory and for zeroing out ranges
* of memory. Using these macros makes it easy to switch from
* using memset()/memcpy() and using bzero()/bcopy().
*
* Please define either SHA2_USE_MEMSET_MEMCPY or define
* SHA2_USE_BZERO_BCOPY depending on which function set you
* choose to use:
*/
#if !defined(SHA2_USE_MEMSET_MEMCPY) && !defined(SHA2_USE_BZERO_BCOPY)
/* Default to memset()/memcpy() if no option is specified */
#define SHA2_USE_MEMSET_MEMCPY 1
#endif
#if defined(SHA2_USE_MEMSET_MEMCPY) && defined(SHA2_USE_BZERO_BCOPY)
/* Abort with an error if BOTH options are defined */
#error Define either SHA2_USE_MEMSET_MEMCPY or SHA2_USE_BZERO_BCOPY, not both!
#endif
#ifdef SHA2_USE_MEMSET_MEMCPY
#define MEMSET_BZERO(p,l) memset((p), 0, (l))
#define MEMCPY_BCOPY(d,s,l) memcpy((d), (s), (l))
#endif
#ifdef SHA2_USE_BZERO_BCOPY
#define MEMSET_BZERO(p,l) bzero((p), (l))
#define MEMCPY_BCOPY(d,s,l) bcopy((s), (d), (l))
#endif
/*** THE SIX LOGICAL FUNCTIONS ****************************************/
/*
* Bit shifting and rotation (used by the six SHA-XYZ logical functions:
*
* NOTE: The naming of R and S appears backwards here (R is a SHIFT and
* S is a ROTATION) because the SHA-256/384/512 description document
* (see http://csrc.nist.gov/cryptval/shs/sha256-384-512.pdf) uses this
* same "backwards" definition.
*/
/* Shift-right (used in SHA-256, SHA-384, and SHA-512): */
#define R(b,x) ((x) >> (b))
/* 64-bit Rotate-right (used in SHA-384 and SHA-512): */
#define S64(b,x) (((x) >> (b)) | ((x) << (64 - (b))))
/* Two of six logical functions used in SHA-256, SHA-384, and SHA-512: */
#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
/* Four of six logical functions used in SHA-384 and SHA-512: */
#define Sigma0_512(x) (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))
#define Sigma1_512(x) (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))
#define sigma0_512(x) (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x)))
#define sigma1_512(x) (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x)))
/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
/* Hash constant words K for SHA-384 and SHA-512: */
static const sha2_word64 K512[80] = {
0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
};
/* initial hash value H for SHA-512 */
static const sha2_word64 sha512_initial_hash_value[8] = {
0x6a09e667f3bcc908ULL,
0xbb67ae8584caa73bULL,
0x3c6ef372fe94f82bULL,
0xa54ff53a5f1d36f1ULL,
0x510e527fade682d1ULL,
0x9b05688c2b3e6c1fULL,
0x1f83d9abfb41bd6bULL,
0x5be0cd19137e2179ULL
};
typedef union _ldns_sha2_buffer_union {
uint8_t* theChars;
uint64_t* theLongs;
} ldns_sha2_buffer_union;
/*** SHA-512: *********************************************************/
void SHA512_Init(SHA512_CTX* context) {
if (context == (SHA512_CTX*)0) {
return;
}
MEMCPY_BCOPY(context->state, sha512_initial_hash_value, SHA512_DIGEST_LENGTH);
MEMSET_BZERO(context->buffer, SHA512_BLOCK_LENGTH);
context->bitcount[0] = context->bitcount[1] = 0;
}
static void SHA512_Transform(SHA512_CTX* context,
const sha2_word64* data) {
sha2_word64 a, b, c, d, e, f, g, h, s0, s1;
sha2_word64 T1, T2, *W512 = (sha2_word64*)context->buffer;
int j;
/* initialize registers with the prev. intermediate value */
a = context->state[0];
b = context->state[1];
c = context->state[2];
d = context->state[3];
e = context->state[4];
f = context->state[5];
g = context->state[6];
h = context->state[7];
j = 0;
do {
#if BYTE_ORDER == LITTLE_ENDIAN
/* Convert TO host byte order */
REVERSE64(*data++, W512[j]);
/* Apply the SHA-512 compression function to update a..h */
T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + W512[j];
#else /* BYTE_ORDER == LITTLE_ENDIAN */
/* Apply the SHA-512 compression function to update a..h with copy */
T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] + (W512[j] = *data++);
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
T2 = Sigma0_512(a) + Maj(a, b, c);
h = g;
g = f;
f = e;
e = d + T1;
d = c;
c = b;
b = a;
a = T1 + T2;
j++;
} while (j < 16);
do {
/* Part of the message block expansion: */
s0 = W512[(j+1)&0x0f];
s0 = sigma0_512(s0);
s1 = W512[(j+14)&0x0f];
s1 = sigma1_512(s1);
/* Apply the SHA-512 compression function to update a..h */
T1 = h + Sigma1_512(e) + Ch(e, f, g) + K512[j] +
(W512[j&0x0f] += s1 + W512[(j+9)&0x0f] + s0);
T2 = Sigma0_512(a) + Maj(a, b, c);
h = g;
g = f;
f = e;
e = d + T1;
d = c;
c = b;
b = a;
a = T1 + T2;
j++;
} while (j < 80);
/* Compute the current intermediate hash value */
context->state[0] += a;
context->state[1] += b;
context->state[2] += c;
context->state[3] += d;
context->state[4] += e;
context->state[5] += f;
context->state[6] += g;
context->state[7] += h;
/* Clean up */
a = b = c = d = e = f = g = h = T1 = T2 = 0;
}
void SHA512_Update(SHA512_CTX* context, void *datain, size_t len) {
size_t freespace, usedspace;
const sha2_byte* data = (const sha2_byte*)datain;
if (len == 0) {
/* Calling with no data is valid - we do nothing */
return;
}
/* Sanity check: */
assert(context != (SHA512_CTX*)0 && data != (sha2_byte*)0);
usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
if (usedspace > 0) {
/* Calculate how much free space is available in the buffer */
freespace = SHA512_BLOCK_LENGTH - usedspace;
if (len >= freespace) {
/* Fill the buffer completely and process it */
MEMCPY_BCOPY(&context->buffer[usedspace], data, freespace);
ADDINC128(context->bitcount, freespace << 3);
len -= freespace;
data += freespace;
SHA512_Transform(context, (sha2_word64*)context->buffer);
} else {
/* The buffer is not yet full */
MEMCPY_BCOPY(&context->buffer[usedspace], data, len);
ADDINC128(context->bitcount, len << 3);
/* Clean up: */
usedspace = freespace = 0;
return;
}
}
while (len >= SHA512_BLOCK_LENGTH) {
/* Process as many complete blocks as we can */
SHA512_Transform(context, (sha2_word64*)data);
ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3);
len -= SHA512_BLOCK_LENGTH;
data += SHA512_BLOCK_LENGTH;
}
if (len > 0) {
/* There's left-overs, so save 'em */
MEMCPY_BCOPY(context->buffer, data, len);
ADDINC128(context->bitcount, len << 3);
}
/* Clean up: */
usedspace = freespace = 0;
}
static void SHA512_Last(SHA512_CTX* context) {
size_t usedspace;
ldns_sha2_buffer_union cast_var;
usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
#if BYTE_ORDER == LITTLE_ENDIAN
/* Convert FROM host byte order */
REVERSE64(context->bitcount[0],context->bitcount[0]);
REVERSE64(context->bitcount[1],context->bitcount[1]);
#endif
if (usedspace > 0) {
/* Begin padding with a 1 bit: */
context->buffer[usedspace++] = 0x80;
if (usedspace <= SHA512_SHORT_BLOCK_LENGTH) {
/* Set-up for the last transform: */
MEMSET_BZERO(&context->buffer[usedspace], SHA512_SHORT_BLOCK_LENGTH - usedspace);
} else {
if (usedspace < SHA512_BLOCK_LENGTH) {
MEMSET_BZERO(&context->buffer[usedspace], SHA512_BLOCK_LENGTH - usedspace);
}
/* Do second-to-last transform: */
SHA512_Transform(context, (sha2_word64*)context->buffer);
/* And set-up for the last transform: */
MEMSET_BZERO(context->buffer, SHA512_BLOCK_LENGTH - 2);
}
} else {
/* Prepare for final transform: */
MEMSET_BZERO(context->buffer, SHA512_SHORT_BLOCK_LENGTH);
/* Begin padding with a 1 bit: */
*context->buffer = 0x80;
}
/* Store the length of input data (in bits): */
cast_var.theChars = context->buffer;
cast_var.theLongs[SHA512_SHORT_BLOCK_LENGTH / 8] = context->bitcount[1];
cast_var.theLongs[SHA512_SHORT_BLOCK_LENGTH / 8 + 1] = context->bitcount[0];
/* final transform: */
SHA512_Transform(context, (sha2_word64*)context->buffer);
}
void SHA512_Final(sha2_byte digest[], SHA512_CTX* context) {
sha2_word64 *d = (sha2_word64*)digest;
/* Sanity check: */
assert(context != (SHA512_CTX*)0);
/* If no digest buffer is passed, we don't bother doing this: */
if (digest != (sha2_byte*)0) {
SHA512_Last(context);
/* Save the hash data for output: */
#if BYTE_ORDER == LITTLE_ENDIAN
{
/* Convert TO host byte order */
int j;
for (j = 0; j < 8; j++) {
REVERSE64(context->state[j],context->state[j]);
*d++ = context->state[j];
}
}
#else
MEMCPY_BCOPY(d, context->state, SHA512_DIGEST_LENGTH);
#endif
}
/* Zero out state data */
MEMSET_BZERO(context, sizeof(SHA512_CTX));
}
unsigned char *
SHA512(void *data, unsigned int data_len, unsigned char *digest)
{
SHA512_CTX ctx;
SHA512_Init(&ctx);
SHA512_Update(&ctx, data, data_len);
SHA512_Final(digest, &ctx);
return digest;
}

1037
external/unbound/compat/snprintf.c vendored
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73
external/unbound/compat/strlcat.c vendored
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@ -1,73 +0,0 @@
/* compat/strlcat.c */
/*-
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* OPENBSD ORIGINAL: lib/libc/string/strlcat.c */
#include "config.h"
#ifndef HAVE_STRLCAT
#include <sys/types.h>
#include <string.h>
/*
* Appends src to string dst of size siz (unlike strncat, siz is the
* full size of dst, not space left). At most siz-1 characters
* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
* Returns strlen(src) + MIN(siz, strlen(initial dst)).
* If retval >= siz, truncation occurred.
*/
size_t
strlcat(char *dst, const char *src, size_t siz)
{
char *d = dst;
const char *s = src;
size_t n = siz;
size_t dlen;
/* Find the end of dst and adjust bytes left but don't go past end */
while (n-- != 0 && *d != '\0')
d++;
dlen = d - dst;
n = siz - dlen;
if (n == 0)
return(dlen + strlen(s));
while (*s != '\0') {
if (n != 1) {
*d++ = *s;
n--;
}
s++;
}
*d = '\0';
return(dlen + (s - src)); /* count does not include NUL */
}
#endif /* !HAVE_STRLCAT */

57
external/unbound/compat/strlcpy.c vendored
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@ -1,57 +0,0 @@
/* from openssh 4.3p2 compat/strlcpy.c */
/*
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */
#include <config.h>
#ifndef HAVE_STRLCPY
#include <sys/types.h>
#include <string.h>
/*
* Copy src to string dst of size siz. At most siz-1 characters
* will be copied. Always NUL terminates (unless siz == 0).
* Returns strlen(src); if retval >= siz, truncation occurred.
*/
size_t
strlcpy(char *dst, const char *src, size_t siz)
{
char *d = dst;
const char *s = src;
size_t n = siz;
/* Copy as many bytes as will fit */
if (n != 0 && --n != 0) {
do {
if ((*d++ = *s++) == 0)
break;
} while (--n != 0);
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++)
;
}
return(s - src - 1); /* count does not include NUL */
}
#endif /* !HAVE_STRLCPY */

345
external/unbound/compat/strptime.c vendored
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@ -1,345 +0,0 @@
/** strptime workaround (for oa macos leopard)
* This strptime follows the man strptime (2001-11-12)
* conforming to SUSv2, POSIX.1-2001
*
* This very simple version of strptime has no:
* - E alternatives
* - O alternatives
* - Glibc additions
* - Does not process week numbers
* - Does not properly processes year day
*
* LICENSE
* Copyright (c) 2008, NLnet Labs, Matthijs Mekking
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NLnetLabs nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
**/
#include "config.h"
#ifndef HAVE_CONFIG_H
#include <time.h>
#endif
#ifndef STRPTIME_WORKS
#define TM_YEAR_BASE 1900
#include <ctype.h>
#include <string.h>
static const char *abb_weekdays[] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", NULL
};
static const char *full_weekdays[] = {
"Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday", NULL
};
static const char *abb_months[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec", NULL
};
static const char *full_months[] = {
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December", NULL
};
static const char *ampm[] = {
"am", "pm", NULL
};
static int
match_string(const char **buf, const char **strs)
{
int i = 0;
for (i = 0; strs[i] != NULL; i++) {
int len = strlen(strs[i]);
if (strncasecmp (*buf, strs[i], len) == 0) {
*buf += len;
return i;
}
}
return -1;
}
static int
str2int(const char **buf, int max)
{
int ret=0, count=0;
while (*buf[0] != '\0' && isdigit((unsigned char)*buf[0]) && count<max) {
ret = ret*10 + (*buf[0] - '0');
(*buf)++;
count++;
}
if (!count)
return -1;
return ret;
}
/** Converts the character string s to values which are stored in tm
* using the format specified by format
**/
char *
unbound_strptime(const char *s, const char *format, struct tm *tm)
{
int c, ret;
int split_year = 0;
while ((c = *format) != '\0') {
/* whitespace, literal or format */
if (isspace((unsigned char)c)) { /* whitespace */
/** whitespace matches zero or more whitespace characters in the
* input string.
**/
while (isspace((unsigned char)*s))
s++;
}
else if (c == '%') { /* format */
format++;
c = *format;
switch (c) {
case '%': /* %% is converted to % */
if (*s != c) {
return NULL;
}
s++;
break;
case 'a': /* weekday name, abbreviated or full */
case 'A':
ret = match_string(&s, full_weekdays);
if (ret < 0)
ret = match_string(&s, abb_weekdays);
if (ret < 0) {
return NULL;
}
tm->tm_wday = ret;
break;
case 'b': /* month name, abbreviated or full */
case 'B':
case 'h':
ret = match_string(&s, full_months);
if (ret < 0)
ret = match_string(&s, abb_months);
if (ret < 0) {
return NULL;
}
tm->tm_mon = ret;
break;
case 'c': /* date and time representation */
if (!(s = unbound_strptime(s, "%x %X", tm))) {
return NULL;
}
break;
case 'C': /* century number */
ret = str2int(&s, 2);
if (ret < 0 || ret > 99) { /* must be in [00,99] */
return NULL;
}
if (split_year) {
tm->tm_year = ret*100 + (tm->tm_year%100);
}
else {
tm->tm_year = ret*100 - TM_YEAR_BASE;
split_year = 1;
}
break;
case 'd': /* day of month */
case 'e':
ret = str2int(&s, 2);
if (ret < 1 || ret > 31) { /* must be in [01,31] */
return NULL;
}
tm->tm_mday = ret;
break;
case 'D': /* equivalent to %m/%d/%y */
if (!(s = unbound_strptime(s, "%m/%d/%y", tm))) {
return NULL;
}
break;
case 'H': /* hour */
ret = str2int(&s, 2);
if (ret < 0 || ret > 23) { /* must be in [00,23] */
return NULL;
}
tm->tm_hour = ret;
break;
case 'I': /* 12hr clock hour */
ret = str2int(&s, 2);
if (ret < 1 || ret > 12) { /* must be in [01,12] */
return NULL;
}
if (ret == 12) /* actually [0,11] */
ret = 0;
tm->tm_hour = ret;
break;
case 'j': /* day of year */
ret = str2int(&s, 2);
if (ret < 1 || ret > 366) { /* must be in [001,366] */
return NULL;
}
tm->tm_yday = ret;
break;
case 'm': /* month */
ret = str2int(&s, 2);
if (ret < 1 || ret > 12) { /* must be in [01,12] */
return NULL;
}
/* months go from 0-11 */
tm->tm_mon = (ret-1);
break;
case 'M': /* minute */
ret = str2int(&s, 2);
if (ret < 0 || ret > 59) { /* must be in [00,59] */
return NULL;
}
tm->tm_min = ret;
break;
case 'n': /* arbitrary whitespace */
case 't':
while (isspace((unsigned char)*s))
s++;
break;
case 'p': /* am pm */
ret = match_string(&s, ampm);
if (ret < 0) {
return NULL;
}
if (tm->tm_hour < 0 || tm->tm_hour > 11) { /* %I */
return NULL;
}
if (ret == 1) /* pm */
tm->tm_hour += 12;
break;
case 'r': /* equivalent of %I:%M:%S %p */
if (!(s = unbound_strptime(s, "%I:%M:%S %p", tm))) {
return NULL;
}
break;
case 'R': /* equivalent of %H:%M */
if (!(s = unbound_strptime(s, "%H:%M", tm))) {
return NULL;
}
break;
case 'S': /* seconds */
ret = str2int(&s, 2);
/* 60 may occur for leap seconds */
/* earlier 61 was also allowed */
if (ret < 0 || ret > 60) { /* must be in [00,60] */
return NULL;
}
tm->tm_sec = ret;
break;
case 'T': /* equivalent of %H:%M:%S */
if (!(s = unbound_strptime(s, "%H:%M:%S", tm))) {
return NULL;
}
break;
case 'U': /* week number, with the first Sun of Jan being w1 */
ret = str2int(&s, 2);
if (ret < 0 || ret > 53) { /* must be in [00,53] */
return NULL;
}
/** it is hard (and not necessary for nsd) to determine time
* data from week number.
**/
break;
case 'w': /* day of week */
ret = str2int(&s, 1);
if (ret < 0 || ret > 6) { /* must be in [0,6] */
return NULL;
}
tm->tm_wday = ret;
break;
case 'W': /* week number, with the first Mon of Jan being w1 */
ret = str2int(&s, 2);
if (ret < 0 || ret > 53) { /* must be in [00,53] */
return NULL;
}
/** it is hard (and not necessary for nsd) to determine time
* data from week number.
**/
break;
case 'x': /* date format */
if (!(s = unbound_strptime(s, "%m/%d/%y", tm))) {
return NULL;
}
break;
case 'X': /* time format */
if (!(s = unbound_strptime(s, "%H:%M:%S", tm))) {
return NULL;
}
break;
case 'y': /* last two digits of a year */
ret = str2int(&s, 2);
if (ret < 0 || ret > 99) { /* must be in [00,99] */
return NULL;
}
if (split_year) {
tm->tm_year = ((tm->tm_year/100) * 100) + ret;
}
else {
split_year = 1;
/** currently:
* if in [0,68] we are in 21th century,
* if in [69,99] we are in 20th century.
**/
if (ret < 69) /* 2000 */
ret += 100;
tm->tm_year = ret;
}
break;
case 'Y': /* year */
ret = str2int(&s, 4);
if (ret < 0 || ret > 9999) {
return NULL;
}
tm->tm_year = ret - TM_YEAR_BASE;
break;
case '\0':
default: /* unsupported, cannot match format */
return NULL;
break;
}
}
else { /* literal */
/* if input cannot match format, return NULL */
if (*s != c)
return NULL;
s++;
}
format++;
}
/* return pointer to remainder of s */
return (char*) s;
}
#endif /* STRPTIME_WORKS */

65
external/unbound/compat/strsep.c vendored
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@ -1,65 +0,0 @@
/**
* strsep implementation for compatibility.
*
* LICENSE
* Copyright (c) 2016, NLnet Labs
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NLnetLabs nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
**/
#include "config.h"
/** see if character is in the delimiter array */
static int
in_delim(char c, const char* delim)
{
const char* p;
if(!delim)
return 0;
for(p=delim; *p; p++) {
if(*p == c)
return 1;
}
return 0;
}
char *strsep(char **stringp, const char *delim)
{
char* s;
char* orig;
if(stringp == NULL || *stringp == NULL)
return NULL;
orig = *stringp;
s = *stringp;
while(*s && !in_delim(*s, delim))
s++;
if(*s) {
*s = 0;
*stringp = s+1;
} else {
*stringp = NULL;
}
return orig;
}

1558
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1205
external/unbound/config.h.cmake.in vendored
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File diff suppressed because it is too large Load Diff

1202
external/unbound/config.h.in vendored
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File diff suppressed because it is too large Load Diff

1791
external/unbound/config.sub vendored
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File diff suppressed because it is too large Load Diff

22640
external/unbound/configure vendored
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File diff suppressed because it is too large Load Diff

1650
external/unbound/configure.ac vendored
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File diff suppressed because it is too large Load Diff

237
external/unbound/configure_checks.cmake vendored
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@ -1,237 +0,0 @@
include(CheckIncludeFile)
include(CheckFunctionExists)
include(CheckSymbolExists)
include(CheckTypeSize)
# Need expat.
check_include_file(arpa/inet.h HAVE_ARPA_INET_H)
check_include_file(endian.h HAVE_ENDIAN_H)
check_include_file(dlfcn.h HAVE_DLFCN_H)
check_include_file(event.h HAVE_EVENT_H)
check_include_file(getopt.h HAVE_GETOPT_H)
check_include_file(glob.h HAVE_GLOB_H)
check_include_file(grp.h HAVE_GRP_H)
check_include_file(inttypes.h HAVE_INTTYPES_H)
check_include_file(iphlpapi.h HAVE_IPHLPAPI_H)
check_include_file(login_cap.h HAVE_LOGIN_CAP_H)
check_include_file(memory.h HAVE_MEMORY_H)
check_include_file(netdb.h HAVE_NETDB_H)
check_include_file(netinet/in.h HAVE_NETINET_IN_H)
check_include_file(pthread.h HAVE_PTHREAD)
check_include_file(pwd.h HAVE_PWD_H)
check_include_file(stdarg.h HAVE_STDARG_H)
check_include_file(stdbool.h HAVE_STDBOOL_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(stdlib.h HAVE_STDLIB_H)
check_include_file(strings.h HAVE_STRINGS_H)
check_include_file(string.h HAVE_STRING_H)
check_include_file(sys/param.h HAVE_SYS_PARAM_H)
check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
check_include_file(sys/sha2.h HAVE_SYS_SHA2_H)
check_include_file(sys/socket.h HAVE_SYS_SOCKET_H)
check_include_file(sys/stat.h HAVE_SYS_STAT_H)
check_include_file(sys/sysctl.h HAVE_SYS_SYSCTL_H)
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
check_include_file(sys/uio.h HAVE_SYS_UIO_H)
check_include_file(sys/un.h HAVE_SYS_UN_H)
check_include_file(sys/wait.h HAVE_SYS_WAIT_H)
check_include_file(syslog.h HAVE_SYSLOG_H)
check_include_file(time.h HAVE_TIME_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(vfork.h HAVE_VFORK_H)
check_include_file(windows.h HAVE_WINDOWS_H)
check_include_file(winsock2.h HAVE_WINSOCK2_H)
check_include_file(ws2tcpip.h HAVE_WS2TCPIP_H)
if (WIN32)
set(CMAKE_REQUIRED_LIBRARIES
iphlpapi
ws2_32)
endif ()
if (CMAKE_SYSTEM_NAME MATCHES "(SunOS|Solaris)")
set(CMAKE_REQUIRED_LIBRARIES
socket
nsl)
endif ()
check_function_exists(_beginthreadex HAVE__BEGINTHREADEX)
check_function_exists(arc4random HAVE_ARC4RANDOM)
check_function_exists(arc4random_uniform HAVE_ARC4RANDOM_UNIFORM)
check_function_exists(chown HAVE_CHOWN)
check_function_exists(chroot HAVE_CHROOT)
check_function_exists(ctime_r HAVE_CTIME_R)
check_function_exists(daemon HAVE_DAEMON)
check_function_exists(endprotoent HAVE_ENDPROTOENT)
check_function_exists(endservent HAVE_ENDSERVENT)
check_function_exists(fork HAVE_FORK)
check_function_exists(fseeko HAVE_FSEEKO)
check_function_exists(fsync HAVE_FSYNC)
check_function_exists(getauxval HAVE_GETAUXVAL)
check_function_exists(getentropy HAVE_GETENTROPY)
check_function_exists(getpwnam HAVE_GETPWNAM)
check_function_exists(getrlimit HAVE_GETRLIMIT)
check_function_exists(glob HAVE_GLOB)
check_function_exists(gmtime_r HAVE_GMTIME_R)
check_function_exists(fcntl HAVE_FCNTL)
check_function_exists(inet_aton HAVE_INET_ATON)
check_function_exists(inet_ntop HAVE_INET_NTOP)
check_function_exists(inet_pton HAVE_INET_PTON)
check_function_exists(initgroups HAVE_INITGROUPS)
check_function_exists(ioctlsocket HAVE_IOCTLSOCKET)
check_function_exists(isblank HAVE_ISBLANK)
check_function_exists(kill HAVE_KILL)
check_function_exists(localtime_r HAVE_LOCALTIME_R)
check_function_exists(malloc HAVE_MALLOC)
check_function_exists(memmove HAVE_MEMMOVE)
check_function_exists(random HAVE_RANDOM)
check_function_exists(reallocarray HAVE_DECL_REALLOCARRAY)
check_function_exists(recvmsg HAVE_RECVMSG)
check_function_exists(sbrk HAVE_SBRK)
check_function_exists(sendmsg HAVE_SENDMSG)
check_function_exists(setregid HAVE_SETREGID)
check_function_exists(setresgid HAVE_SETRESGID)
check_function_exists(setresuid HAVE_SETRESUID)
check_function_exists(setreuid HAVE_SETREUID)
check_function_exists(setrlimit HAVE_SETRLIMIT)
check_function_exists(setsid HAVE_SETSID)
check_function_exists(setusercontent HAVE_SETUSERCONTENT)
check_function_exists(sigprocmask HAVE_SIGPROCMASK)
check_function_exists(sleep HAVE_SLEEP)
check_function_exists(snprintf HAVE_SNPRINTF)
check_function_exists(socketpair HAVE_SOCKETPAIR)
check_function_exists(srandom HAVE_SRANDOM)
check_function_exists(strsep HAVE_STRSEP)
check_function_exists(strftime HAVE_STRFTIME)
check_function_exists(strlcat HAVE_STRLCAT)
check_function_exists(strlcpy HAVE_STRLCPY)
check_function_exists(strptime HAVE_STRPTIME)
check_function_exists(strlcpy HAVE_STRLCPY)
check_function_exists(tzset HAVE_TZSET)
check_function_exists(usleep HAVE_USLEEP)
check_function_exists(writev HAVE_WRITEV)
check_function_exists(_beginthreadex HAVE__BEGINTHREADEX)
set(getaddrinfo_headers)
if (HAVE_NETDB_H)
list(APPEND getaddrinfo_headers "netdb.h")
endif ()
if (HAVE_WS2TCPIP_H)
list(APPEND getaddrinfo_headers "ws2tcpip.h")
endif ()
check_symbol_exists(getaddrinfo "${getaddrinfo_headers}" HAVE_GETADDRINFO)
check_function_exists(getaddrinfo HAVE_GETADDRINFO)
function (check_type_exists type variable header default)
set(CMAKE_EXTRA_INCLUDE_FILES "${header}")
check_type_size("${type}" "${variable}")
if (NOT HAVE_${type})
set("${variable}" "${default}" PARENT_SCOPE)
else ()
set("${variable}" "FALSE" PARENT_SCOPE)
endif ()
endfunction ()
set(CMAKE_EXTRA_INCLUDE_FILES "time.h")
check_type_size(time_t SIZEOF_TIME_T)
set(CMAKE_EXTRA_INCLUDE_FILES)
check_type_exists(gid_t gid_t "sys/types.h" int)
check_type_exists(in_addr_t in_addr_t "netinet/in.h" uint32_t)
check_type_exists(in_port_t in_port_t "netinet/in.h" uint16_t)
check_type_exists(int16_t int16_t "sys/types.h" short)
check_type_exists(int32_t int32_t "sys/types.h" int)
check_type_exists(int64_t int64_t "sys/types.h" __int64)
check_type_exists(int8_t int8_t "sys/types.h" char)
check_type_exists(pid_t pid_t "sys/types.h" int)
check_type_exists(rlim_t rlim_t "sys/resource.h" "unsigned long")
check_type_exists(ssize_t ssize_t "sys/types.h" int)
check_type_exists(uid_t uid_t "sys/types.h" int)
check_type_exists(uint16_t uint16_t "sys/types.h" "unsigned short")
check_type_exists(uint32_t uint32_t "sys/types.h" "unsigned int")
check_type_exists(uint64_t uint64_t "sys/types.h" "unsigned long long")
check_type_exists(uint8_t uint8_t "sys/types.h" "unsigned char")
if (WIN32)
set(UB_ON_WINDOWS 1)
endif ()
if (MSVC)
set(inline __inline)
set(__func__ __FUNCTION__)
endif ()
if (NOT HAVE_VFORK)
set(vfork fork)
endif ()
# XXX: Check for broken malloc()?
# XXX: Check for broken memcmp()?
# XXX: Check for broken vfork()?
# XXX: Check for one-arg mkdir?
check_symbol_exists(inet_pton "arpa/inet.h" HAVE_INET_PTON)
check_symbol_exists(inet_ntop "arpa/inet.h" HAVE_INET_NTOP)
check_symbol_exists(strsep "string.h" HAVE_STRSEP)
check_symbol_exists(PTHREAD_PRIO_INHERIT "pthread.h" HAVE_PTHREAD_PRIO_INHERIT)
check_symbol_exists(pthread_rwlock_t "pthread.h" HAVE_PTHREAD_RWLOCK_T)
check_symbol_exists(pthread_spinlock_t "pthread.h" HAVE_PTHREAD_SPINLOCK_T)
# openssl
set(CMAKE_REQUIRED_INCLUDES
${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/conf.h HAVE_OPENSSL_CONF_H)
check_include_file(openssl/engine.h HAVE_OPENSSL_ENGINE_H)
check_include_file(openssl/err.h HAVE_OPENSSL_ERR_H)
check_include_file(openssl/rand.h HAVE_OPENSSL_RAND_H)
check_include_file(openssl/ssl.h HAVE_OPENSSL_SSL_H)
set(CMAKE_REQUIRED_INCLUDES)
check_symbol_exists(NID_secp384r1 "openssl/evp.h" HAVE_DECL_NID_SECP384R1)
check_symbol_exists(NID_X9_62_prime256v1 "openssl/evp.h" HAVE_DECL_NID_X9_62_PRIME256V1)
check_symbol_exists(sk_SSL_COMP_pop_free "openssl/ssl.h" HAVE_DECL_SK_SSL_COMP_POP_FREE)
check_symbol_exists(SSL_COMP_get_compression_methods "openssl/ssl.h" HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS)
set(CMAKE_REQUIRED_LIBRARIES
${OPENSSL_LIBRARIES})
check_function_exists(EVP_MD_CTX_new HAVE_EVP_MD_CTX_NEW)
check_function_exists(EVP_sha1 HAVE_EVP_SHA1)
check_function_exists(EVP_sha256 HAVE_EVP_SHA256)
check_function_exists(EVP_sha512 HAVE_EVP_SHA512)
check_function_exists(FIPS_mode HAVE_FIPS_MODE)
check_function_exists(HMAC_Update HAVE_HMAC_UPDATE)
check_function_exists(OPENSSL_config HAVE_OPENSSL_CONFIG)
check_function_exists(SHA512_Update HAVE_SHA512_UPDATE)
set(CMAKE_REQUIRED_LIBRARIES)
set(UNBOUND_CONFIGFILE "${CMAKE_INSTALL_PREFIX}/etc/unbound/unbound.conf"
CACHE STRING "default configuration file")
set(UNBOUND_USERNAME "unbound"
CACHE STRING "default user that unbound changes to")
set(UNBOUND_CHROOT_DIR "${CMAKE_INSTALL_PREFIX}/etc/unbound"
CACHE STRING "default directory to chroot to")
set(UNBOUND_RUN_DIR "${CMAKE_INSTALL_PREFIX}/etc/unbound"
CACHE STRING "default directory to chroot to")
set(UNBOUND_SHARE_DIR "${CMAKE_INSTALL_PREFIX}/etc/unbound"
CACHE STRING "default directory with shared data")
set(UNBOUND_PIDFILE "${CMAKE_INSTALL_PREFIX}/etc/unbound/unbound.pid"
CACHE STRING "default pathname to the pidfile")
# Copied from configure.ac.
set(WINVER 0x0502)
set(PACKAGE_VERSION "1.5.8")
set(PACKAGE_NAME "${PROJECT_NAME}")
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set(MAXSYSLOGMSGLEN 10240)
# Make assumptions.
set(HAVE_WORKING_FORK ${HAVE_FORK})
set(HAVE_WORKING_VFORK ${HAVE_VFORK})

33
external/unbound/contrib/README vendored
View File

@ -1,33 +0,0 @@
These files are contributed to unbound, and are not part of the official
distribution but may be helpful.
* rc_d_unbound: FreeBSD compatible /etc/rc.d script.
* parseunbound.pl: perl script to run from cron that parses statistics from
the log file and stores them.
* unbound.spec and unbound.init: RPM specfile and Linux rc.d initfile.
* update-anchor.sh: shell script that uses unbound-host to update a set
of trust anchor files. Run from cron twice a month.
* unbound_munin_ : plugin for munin statistics report
* unbound_cacti.tar.gz : setup files for cacti statistics report
* selinux: the .fc and .te files for SElinux protection of the unbound daemon
* unbound.plist: launchd configuration file for MacOSX.
* build-unbound-localzone-from-hosts.pl: perl script to turn /etc/hosts into
a local-zone and local-data include file for unbound.conf.
* unbound-host.nagios.patch: makes unbound-host return status that fits right
in with the nagios monitoring framework. Contributed by Migiel de Vos.
* patch_rsamd5_enable.diff: this patch enables RSAMD5 validation (otherwise
it is treated as insecure). The RSAMD5 algorithm is deprecated (RFC6725).
* create_unbound_ad_servers.sh: shell script to enter anti-ad server lists.
* create_unbound_ad_servers.cmd: windows script to enter anti-ad server lists.
* unbound_cache.sh: shell script to save and load the cache.
* unbound_cache.cmd: windows script to save and load the cache.
* warmup.sh: shell script to warm up DNS cache by your own MRU domains.
* warmup.cmd: windows script to warm up DNS cache by your own MRU domains.
* aaaa-filter-iterator.patch: adds config option aaaa-filter: yes that
works like the BIND feature (removes AAAA records unless AAAA-only domain).
Useful for certain 'broken IPv6 default route' scenarios.
Patch from Stephane Lapie for ASAHI Net.
* unbound_smf22.tar.gz: Solaris SMF installation/removal scripts.
Contributed by Yuri Voinov.
* unbound.socket and unbound.service: systemd files for unbound, install them
in /usr/lib/systemd/system. Contributed by Sami Kerola and Pavel Odintsov.

413
external/unbound/contrib/aaaa-filter-iterator.patch vendored
View File

@ -1,413 +0,0 @@
Index: trunk/doc/unbound.conf.5.in
===================================================================
--- trunk/doc/unbound.conf.5.in (revision 3587)
+++ trunk/doc/unbound.conf.5.in (working copy)
@@ -593,6 +593,13 @@
possible. Best effort approach, full QNAME and original QTYPE will be sent when
upstream replies with a RCODE other than NOERROR. Default is off.
.TP
+.B aaaa\-filter: \fI<yes or no>
+Activate behavior similar to BIND's AAAA-filter.
+This forces the dropping of all AAAA records, unless in the case of
+explicit AAAA queries, when no A records have been confirmed.
+This also causes an additional A query to be sent for each AAAA query.
+This breaks DNSSEC!
+.TP
.B private\-address: \fI<IP address or subnet>
Give IPv4 of IPv6 addresses or classless subnets. These are addresses
on your private network, and are not allowed to be returned for
Index: trunk/iterator/iter_scrub.c
===================================================================
--- trunk/iterator/iter_scrub.c (revision 3587)
+++ trunk/iterator/iter_scrub.c (working copy)
@@ -617,6 +617,32 @@
}
/**
+ * ASN: Lookup A records from rrset cache.
+ * @param qinfo: the question originally asked.
+ * @param env: module environment with config and cache.
+ * @param ie: iterator environment with private address data.
+ * @return 0 if no A record found, 1 if A record found.
+ */
+static int
+asn_lookup_a_record_from_cache(struct query_info* qinfo,
+ struct module_env* env, struct iter_env* ATTR_UNUSED(ie))
+{
+ struct ub_packed_rrset_key* akey;
+
+ /* get cached A records for queried name */
+ akey = rrset_cache_lookup(env->rrset_cache, qinfo->qname,
+ qinfo->qname_len, LDNS_RR_TYPE_A, qinfo->qclass,
+ 0, *env->now, 0);
+ if(akey) { /* we had some. */
+ log_rrset_key(VERB_ALGO, "ASN-AAAA-filter: found A record",
+ akey);
+ lock_rw_unlock(&akey->entry.lock);
+ return 1;
+ }
+ return 0;
+}
+
+/**
* Given a response event, remove suspect RRsets from the response.
* "Suspect" rrsets are potentially poison. Note that this routine expects
* the response to be in a "normalized" state -- that is, all "irrelevant"
@@ -635,6 +661,7 @@
struct query_info* qinfo, uint8_t* zonename, struct module_env* env,
struct iter_env* ie)
{
+ int found_a_record = 0; /* ASN: do we have a A record? */
int del_addi = 0; /* if additional-holding rrsets are deleted, we
do not trust the normalized additional-A-AAAA any more */
struct rrset_parse* rrset, *prev;
@@ -670,6 +697,13 @@
rrset = rrset->rrset_all_next;
}
+ /* ASN: Locate any A record we can find */
+ if((ie->aaaa_filter) && (qinfo->qtype == LDNS_RR_TYPE_AAAA)) {
+ found_a_record = asn_lookup_a_record_from_cache(qinfo,
+ env, ie);
+ }
+ /* ASN: End of added code */
+
/* At this point, we brutally remove ALL rrsets that aren't
* children of the originating zone. The idea here is that,
* as far as we know, the server that we contacted is ONLY
@@ -681,6 +715,24 @@
rrset = msg->rrset_first;
while(rrset) {
+ /* ASN: For AAAA records only... */
+ if((ie->aaaa_filter) && (rrset->type == LDNS_RR_TYPE_AAAA)) {
+ /* ASN: If this is not a AAAA query, then remove AAAA
+ * records, no questions asked. If this IS a AAAA query
+ * then remove AAAA records if we have an A record.
+ * Otherwise, leave things be. */
+ if((qinfo->qtype != LDNS_RR_TYPE_AAAA) ||
+ (found_a_record)) {
+ remove_rrset("ASN-AAAA-filter: removing AAAA "
+ "for record", pkt, msg, prev, &rrset);
+ continue;
+ }
+ log_nametypeclass(VERB_ALGO, "ASN-AAAA-filter: "
+ "keep AAAA for", zonename,
+ LDNS_RR_TYPE_AAAA, qinfo->qclass);
+ }
+ /* ASN: End of added code */
+
/* remove private addresses */
if( (rrset->type == LDNS_RR_TYPE_A ||
rrset->type == LDNS_RR_TYPE_AAAA)) {
Index: trunk/iterator/iter_utils.c
===================================================================
--- trunk/iterator/iter_utils.c (revision 3587)
+++ trunk/iterator/iter_utils.c (working copy)
@@ -175,6 +175,7 @@
}
iter_env->supports_ipv6 = cfg->do_ip6;
iter_env->supports_ipv4 = cfg->do_ip4;
+ iter_env->aaaa_filter = cfg->aaaa_filter;
return 1;
}
Index: trunk/iterator/iterator.c
===================================================================
--- trunk/iterator/iterator.c (revision 3587)
+++ trunk/iterator/iterator.c (working copy)
@@ -1776,6 +1776,53 @@
return 0;
}
+
+/**
+ * ASN: This event state was added as an intermediary step between
+ * QUERYTARGETS_STATE and the next step, in order to cast a subquery for the
+ * purpose of caching A records for the queried name.
+ *
+ * @param qstate: query state.
+ * @param iq: iterator query state.
+ * @param ie: iterator shared global environment.
+ * @param id: module id.
+ * @return true if the event requires more request processing immediately,
+ * false if not. This state only returns true when it is generating
+ * a SERVFAIL response because the query has hit a dead end.
+ */
+static int
+asn_processQueryAAAA(struct module_qstate* qstate, struct iter_qstate* iq,
+ struct iter_env* ATTR_UNUSED(ie), int id)
+{
+ struct module_qstate* subq = NULL;
+
+ log_assert(iq->fetch_a_for_aaaa == 0);
+
+ /* flag the query properly in order to not loop */
+ iq->fetch_a_for_aaaa = 1;
+
+ /* re-throw same query, but with a different type */
+ if(!generate_sub_request(iq->qchase.qname,
+ iq->qchase.qname_len, LDNS_RR_TYPE_A,
+ iq->qchase.qclass, qstate, id, iq,
+ INIT_REQUEST_STATE, FINISHED_STATE, &subq, 1)) {
+ log_nametypeclass(VERB_ALGO, "ASN-AAAA-filter: failed "
+ "preloading of A record for",
+ iq->qchase.qname, LDNS_RR_TYPE_A,
+ iq->qchase.qclass);
+ return error_response(qstate, id, LDNS_RCODE_SERVFAIL);
+ }
+ log_nametypeclass(VERB_ALGO, "ASN-AAAA-filter: "
+ "preloading records in cache for",
+ iq->qchase.qname, LDNS_RR_TYPE_A,
+ iq->qchase.qclass);
+
+ /* set this query as waiting */
+ qstate->ext_state[id] = module_wait_subquery;
+ /* at this point break loop */
+ return 0;
+}
+/* ASN: End of added code */
/**
* This is the request event state where the request will be sent to one of
@@ -1823,6 +1870,13 @@
return error_response(qstate, id, LDNS_RCODE_SERVFAIL);
}
+ /* ASN: If we have a AAAA query, then also query for A records */
+ if((ie->aaaa_filter) && (iq->qchase.qtype == LDNS_RR_TYPE_AAAA) &&
+ (iq->fetch_a_for_aaaa == 0)) {
+ return next_state(iq, ASN_FETCH_A_FOR_AAAA_STATE);
+ }
+ /* ASN: End of added code */
+
/* Make sure we have a delegation point, otherwise priming failed
* or another failure occurred */
if(!iq->dp) {
@@ -2922,6 +2976,61 @@
return 0;
}
+/**
+ * ASN: Do final processing on responses to A queries originated from AAAA
+ * queries. Events reach this state after the iterative resolution algorithm
+ * terminates.
+ * This is required down the road to decide whether to scrub AAAA records
+ * from the results or not.
+ *
+ * @param qstate: query state.
+ * @param id: module id.
+ * @param forq: super query state.
+ */
+static void
+asn_processAAAAResponse(struct module_qstate* qstate, int id,
+ struct module_qstate* super)
+{
+ /*struct iter_qstate* iq = (struct iter_qstate*)qstate->minfo[id];*/
+ struct iter_qstate* super_iq = (struct iter_qstate*)super->minfo[id];
+ struct delegpt_ns* dpns = NULL;
+ int error = (qstate->return_rcode != LDNS_RCODE_NOERROR);
+
+ log_assert(super_iq->fetch_a_for_aaaa > 0);
+
+ /* let super go to evaluation of targets after this */
+ super_iq->state = QUERYTARGETS_STATE;
+
+ log_query_info(VERB_ALGO, "ASN-AAAA-filter: processAAAAResponse",
+ &qstate->qinfo);
+ log_query_info(VERB_ALGO, "ASN-AAAA-filter: processAAAAResponse super",
+ &super->qinfo);
+
+ if(super_iq->dp)
+ dpns = delegpt_find_ns(super_iq->dp,
+ qstate->qinfo.qname, qstate->qinfo.qname_len);
+ if (!dpns) {
+ /* not interested */
+ verbose(VERB_ALGO, "ASN-AAAA-filter: subq: %s, but parent not "
+ "interested%s", (error ? "error, but" : "success"),
+ (super_iq->dp ? "anymore" : " (was reset)"));
+ log_query_info(VERB_ALGO, "ASN-AAAA-filter: superq", &super->qinfo);
+ if(super_iq->dp && error)
+ delegpt_log(VERB_ALGO, super_iq->dp);
+ return;
+ } else if (error) {
+ verbose(VERB_ALGO, "ASN-AAAA-filter: mark as failed, "
+ "and go to target query.");
+ /* see if the failure did get (parent-lame) info */
+ if(!cache_fill_missing(super->env,
+ super_iq->qchase.qclass, super->region,
+ super_iq->dp))
+ log_err("ASN-AAAA-filter: out of memory adding missing");
+ dpns->resolved = 1; /* mark as failed */
+ }
+}
+/* ASN: End of added code */
+
/*
* Return priming query results to interestes super querystates.
*
@@ -2941,6 +3050,9 @@
else if(super->qinfo.qtype == LDNS_RR_TYPE_DS && ((struct iter_qstate*)
super->minfo[id])->state == DSNS_FIND_STATE)
processDSNSResponse(qstate, id, super);
+ else if (super->qinfo.qtype == LDNS_RR_TYPE_AAAA && ((struct iter_qstate*)
+ super->minfo[id])->state == ASN_FETCH_A_FOR_AAAA_STATE)
+ asn_processAAAAResponse(qstate, id, super);
else if(qstate->return_rcode != LDNS_RCODE_NOERROR)
error_supers(qstate, id, super);
else if(qstate->is_priming)
@@ -2978,6 +3090,9 @@
case INIT_REQUEST_3_STATE:
cont = processInitRequest3(qstate, iq, id);
break;
+ case ASN_FETCH_A_FOR_AAAA_STATE:
+ cont = asn_processQueryAAAA(qstate, iq, ie, id);
+ break;
case QUERYTARGETS_STATE:
cont = processQueryTargets(qstate, iq, ie, id);
break;
@@ -3270,6 +3385,8 @@
return "INIT REQUEST STATE (stage 2)";
case INIT_REQUEST_3_STATE:
return "INIT REQUEST STATE (stage 3)";
+ case ASN_FETCH_A_FOR_AAAA_STATE:
+ return "ASN_FETCH_A_FOR_AAAA_STATE";
case QUERYTARGETS_STATE :
return "QUERY TARGETS STATE";
case PRIME_RESP_STATE :
@@ -3294,6 +3411,7 @@
case INIT_REQUEST_STATE :
case INIT_REQUEST_2_STATE :
case INIT_REQUEST_3_STATE :
+ case ASN_FETCH_A_FOR_AAAA_STATE :
case QUERYTARGETS_STATE :
case COLLECT_CLASS_STATE :
return 0;
Index: trunk/iterator/iterator.h
===================================================================
--- trunk/iterator/iterator.h (revision 3587)
+++ trunk/iterator/iterator.h (working copy)
@@ -113,6 +113,9 @@
*/
int* target_fetch_policy;
+ /** ASN: AAAA-filter flag */
+ int aaaa_filter;
+
/** ip6.arpa dname in wireformat, used for qname-minimisation */
uint8_t* ip6arpa_dname;
};
@@ -163,6 +166,14 @@
INIT_REQUEST_3_STATE,
/**
+ * This state is responsible for intercepting AAAA queries,
+ * and launch a A subquery on the same target, to populate the
+ * cache with A records, so the AAAA filter scrubbing logic can
+ * work.
+ */
+ ASN_FETCH_A_FOR_AAAA_STATE,
+
+ /**
* Each time a delegation point changes for a given query or a
* query times out and/or wakes up, this state is (re)visited.
* This state is reponsible for iterating through a list of
@@ -346,6 +357,13 @@
*/
int refetch_glue;
+ /**
+ * ASN: This is a flag that, if true, means that this query is
+ * for fetching A records to populate cache and determine if we must
+ * return AAAA records or not.
+ */
+ int fetch_a_for_aaaa;
+
/** list of pending queries to authoritative servers. */
struct outbound_list outlist;
Index: trunk/pythonmod/interface.i
===================================================================
--- trunk/pythonmod/interface.i (revision 3587)
+++ trunk/pythonmod/interface.i (working copy)
@@ -632,6 +632,7 @@
int harden_dnssec_stripped;
int harden_referral_path;
int use_caps_bits_for_id;
+ int aaaa_filter; /* ASN */
struct config_strlist* private_address;
struct config_strlist* private_domain;
size_t unwanted_threshold;
Index: trunk/util/config_file.c
===================================================================
--- trunk/util/config_file.c (revision 3587)
+++ trunk/util/config_file.c (working copy)
@@ -176,6 +176,7 @@
cfg->harden_referral_path = 0;
cfg->harden_algo_downgrade = 0;
cfg->use_caps_bits_for_id = 0;
+ cfg->aaaa_filter = 0; /* ASN: default is disabled */
cfg->caps_whitelist = NULL;
cfg->private_address = NULL;
cfg->private_domain = NULL;
Index: trunk/util/config_file.h
===================================================================
--- trunk/util/config_file.h (revision 3587)
+++ trunk/util/config_file.h (working copy)
@@ -179,6 +179,8 @@
int harden_algo_downgrade;
/** use 0x20 bits in query as random ID bits */
int use_caps_bits_for_id;
+ /** ASN: enable AAAA filter? */
+ int aaaa_filter;
/** 0x20 whitelist, domains that do not use capsforid */
struct config_strlist* caps_whitelist;
/** strip away these private addrs from answers, no DNS Rebinding */
Index: trunk/util/configlexer.lex
===================================================================
--- trunk/util/configlexer.lex (revision 3587)
+++ trunk/util/configlexer.lex (working copy)
@@ -267,6 +267,7 @@
use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) }
caps-whitelist{COLON} { YDVAR(1, VAR_CAPS_WHITELIST) }
unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) }
+aaaa-filter{COLON} { YDVAR(1, VAR_AAAA_FILTER) }
private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) }
private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) }
prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) }
Index: trunk/util/configparser.y
===================================================================
--- trunk/util/configparser.y (revision 3587)
+++ trunk/util/configparser.y (working copy)
@@ -92,6 +92,7 @@
%token VAR_STATISTICS_CUMULATIVE VAR_OUTGOING_PORT_PERMIT
%token VAR_OUTGOING_PORT_AVOID VAR_DLV_ANCHOR_FILE VAR_DLV_ANCHOR
%token VAR_NEG_CACHE_SIZE VAR_HARDEN_REFERRAL_PATH VAR_PRIVATE_ADDRESS
+%token VAR_AAAA_FILTER
%token VAR_PRIVATE_DOMAIN VAR_REMOTE_CONTROL VAR_CONTROL_ENABLE
%token VAR_CONTROL_INTERFACE VAR_CONTROL_PORT VAR_SERVER_KEY_FILE
%token VAR_SERVER_CERT_FILE VAR_CONTROL_KEY_FILE VAR_CONTROL_CERT_FILE
@@ -169,6 +170,7 @@
server_dlv_anchor_file | server_dlv_anchor | server_neg_cache_size |
server_harden_referral_path | server_private_address |
server_private_domain | server_extended_statistics |
+ server_aaaa_filter |
server_local_data_ptr | server_jostle_timeout |
server_unwanted_reply_threshold | server_log_time_ascii |
server_domain_insecure | server_val_sig_skew_min |
@@ -893,6 +895,15 @@
yyerror("out of memory");
}
;
+server_aaaa_filter: VAR_AAAA_FILTER STRING_ARG
+ {
+ OUTYY(("P(server_aaaa_filter:%s)\n", $2));
+ if(strcmp($2, "yes") != 0 && strcmp($2, "no") != 0)
+ yyerror("expected yes or no.");
+ else cfg_parser->cfg->aaaa_filter = (strcmp($2, "yes")==0);
+ free($2);
+ }
+ ;
server_private_address: VAR_PRIVATE_ADDRESS STRING_ARG
{
OUTYY(("P(server_private_address:%s)\n", $2));

67
external/unbound/contrib/build-unbound-localzone-from-hosts.pl vendored
View File

@ -1,67 +0,0 @@
#!/usr/bin/perl -WT
use strict;
use warnings;
my $hostsfile = '/etc/hosts';
my $localzonefile = '/etc/unbound/localzone.conf.new';
my $localzone = 'example.com';
open( HOSTS,"<${hostsfile}" ) or die( "Could not open ${hostsfile}: $!" );
open( ZONE,">${localzonefile}" ) or die( "Could not open ${localzonefile}: $!" );
print ZONE "server:\n\n";
print ZONE "local-zone: \"${localzone}\" transparent\n\n";
my %ptrhash;
while ( my $hostline = <HOSTS> ) {
# Skip comments
if ( $hostline !~ "^#" and $hostline !~ '^\s+$' ) {
my @entries = split( /\s+/, $hostline );
my $ip;
my $count = 0;
foreach my $entry ( @entries ) {
if ( $count == 0 ) {
$ip = $entry;
} else {
if ( $count == 1) {
# Only return localhost for 127.0.0.1 and ::1
if ( ($ip ne '127.0.0.1' and $ip ne '::1') or $entry =~ 'localhost' ) {
if ( ! defined $ptrhash{$ip} ) {
$ptrhash{$ip} = $entry;
print ZONE "local-data-ptr: \"$ip $entry\"\n";
}
}
}
# Use AAAA for IPv6 addresses
my $a = 'A';
if ( $ip =~ ':' ) {
$a = 'AAAA';
}
print ZONE "local-data: \"$entry ${a} $ip\"\n";
}
$count++;
}
print ZONE "\n";
}
}
__END__

33
external/unbound/contrib/create_unbound_ad_servers.cmd vendored
View File

@ -1,33 +0,0 @@
@Echo off
rem Convert the Yoyo.org anti-ad server listing
rem into an unbound dns spoof redirection list.
rem Written by Y.Voinov (c) 2014
rem Note: Wget required!
rem Variables
set prefix="C:\Program Files (x86)"
set dst_dir=%prefix%\Unbound
set work_dir=%TEMP%
set list_addr="http://pgl.yoyo.org/adservers/serverlist.php?hostformat=nohtml&showintro=1&startdate%5Bday%5D=&startdate%5Bmonth%5D=&startdate%5Byear%5D="
rem Check Wget installed
for /f "delims=" %%a in ('where wget') do @set wget=%%a
if /I "%wget%"=="" echo Wget not found. If installed, add path to PATH environment variable. & exit 1
echo Wget found: %wget%
"%wget%" -O %work_dir%\yoyo_ad_servers %list_addr%
del /Q /F /S %dst_dir%\unbound_ad_servers
for /F "eol=; tokens=*" %%a in (%work_dir%\yoyo_ad_servers) do (
echo local-zone: %%a redirect>>%dst_dir%\unbound_ad_servers
echo local-data: "%%a A 127.0.0.1">>%dst_dir%\unbound_ad_servers
)
echo Done.
rem then add an include line to your unbound.conf pointing to the full path of
rem the unbound_ad_servers file:
rem
rem include: $dst_dir/unbound_ad_servers
rem

39
external/unbound/contrib/create_unbound_ad_servers.sh vendored
View File

@ -1,39 +0,0 @@
#!/bin/sh
#
# Convert the Yoyo.org anti-ad server listing
# into an unbound dns spoof redirection list.
# Modified by Y.Voinov (c) 2014
# Note: Wget required!
# Variables
dst_dir="/etc/opt/csw/unbound"
work_dir="/tmp"
list_addr="http://pgl.yoyo.org/adservers/serverlist.php?hostformat=nohtml&showintro=1&startdate%5Bday%5D=&startdate%5Bmonth%5D=&startdate%5Byear%5D="
# OS commands
CAT=`which cat`
ECHO=`which echo`
WGET=`which wget`
# Check Wget installed
if [ ! -f $WGET ]; then
echo "Wget not found. Exiting..."
exit 1
fi
$WGET -O $work_dir/yoyo_ad_servers "$list_addr" && \
$CAT $work_dir/yoyo_ad_servers | \
while read line ; \
do \
$ECHO "local-zone: \"$line\" redirect" ;\
$ECHO "local-data: \"$line A 127.0.0.1\"" ;\
done > \
$dst_dir/unbound_ad_servers
echo "Done."
# then add an include line to your unbound.conf pointing to the full path of
# the unbound_ad_servers file:
#
# include: $dst_dir/unbound_ad_servers
#

140
external/unbound/contrib/parseunbound.pl vendored
View File

@ -1,140 +0,0 @@
#!/usr/local/bin/perl -w
#
# Script to parse the output from the unbound namedaemon.
# Unbound supports a threading model, and outputs a multiline log-blob for
# every thread.
#
# This script should parse all threads of the once, and store it
# in a local cached file for speedy results when queried lots.
#
use strict;
use POSIX qw(SEEK_END);
use Storable;
use FileHandle;
use Carp qw(croak carp);
use constant UNBOUND_CACHE => "/var/tmp/unbound-cache.stor";
my $run_from_cron = @ARGV && $ARGV[0] eq "--cron" && shift;
my $DEBUG = -t STDERR;
# NB. VERY IMPORTANTES: set this when running this script.
my $numthreads = 4;
### if cache exists, read it in. and is newer than 3 minutes
if ( -r UNBOUND_CACHE ) {
my $result = retrieve(UNBOUND_CACHE);
if (-M _ < 3/24/60 && !$run_from_cron ) {
print STDERR "Cached results:\n" if $DEBUG;
print join("\n", @$result), "\n";
exit;
}
}
my $logfile = shift or die "Usage: parseunbound.pl --cron unboundlogfile";
my $in = new FileHandle $logfile or die "Cannot open $logfile: $!\n";
# there is a special key 'thread' that indicates the thread. its not used, but returned anyway.
my @records = ('thread', 'queries', 'cachehits', 'recursions', 'recursionavg',
'outstandingmax', 'outstandingavg', 'outstandingexc',
'median25', 'median50', 'median75',
'us_0', 'us_1', 'us_2', 'us_4', 'us_8', 'us_16', 'us_32',
'us_64', 'us_128', 'us_256', 'us_512', 'us_1024', 'us_2048',
'us_4096', 'us_8192', 'us_16384', 'us_32768', 'us_65536',
'us_131072', 'us_262144', 'us_524288', 's_1', 's_2', 's_4',
's_8', 's_16', 's_32', 's_64', 's_128', 's_256', 's_512');
# Stats hash containing one or more keys. for every thread, 1 key.
my %allstats = (); # key="$threadid", stats={key => value}
my %startstats = (); # when we got a queries entry for this thread
my %donestats = (); # same, but only when we got a histogram entry for it
# stats hash contains name/value pairs of the actual numbers for that thread.
my $offset = 0;
my $inthread=0;
my $inpid;
# We should continue looping untill we meet these conditions:
# a) more total queries than the previous run (which defaults to 0) AND
# b) parsed all $numthreads threads in the log.
my $numqueries = $previousresult ? $previousresult->[1] : 0;
# Main loop
while ( scalar keys %startstats < $numthreads || scalar keys %donestats < $numthreads) {
$offset += 10000;
if ( $offset > -s $logfile or $offset > 10_000_000 ) {
die "Cannot find stats in $logfile\n";
}
$in->seek(-$offset, SEEK_END) or croak "cannot seek $logfile: $!\n";
for my $line ( <$in> ) {
chomp($line);
#[1208777234] unbound[6705:0]
if ($line =~ m/^\[\d+\] unbound\[\d+:(\d+)\]/) {
$inthread = $1;
if ($inthread + 1 > $numthreads) {
die "Hey. lazy. change \$numthreads in this script to ($inthread)\n";
}
}
# this line doesn't contain a pid:thread. skip.
else {
next;
}
if ( $line =~ m/info: server stats for thread \d+: (\d+) queries, (\d+) answers from cache, (\d+) recursions/ ) {
$startstats{$inthread} = 1;
$allstats{$inthread}->{thread} = $inthread;
$allstats{$inthread}->{queries} = $1;
$allstats{$inthread}->{cachehits} = $2;
$allstats{$inthread}->{recursions} = $3;
}
elsif ( $line =~ m/info: server stats for thread (\d+): requestlist max (\d+) avg ([0-9\.]+) exceeded (\d+)/ ) {
$allstats{$inthread}->{outstandingmax} = $2;
$allstats{$inthread}->{outstandingavg} = int($3); # This is a float; rrdtool only handles ints.
$allstats{$inthread}->{outstandingexc} = $4;
}
elsif ( $line =~ m/info: average recursion processing time ([0-9\.]+) sec/ ) {
$allstats{$inthread}->{recursionavg} = int($1 * 1000); # change sec to milisec.
}
elsif ( $line =~ m/info: histogram of recursion processing times/ ) {
next;
}
elsif ( $line =~ m/info: \[25%\]=([0-9\.]+) median\[50%\]=([0-9\.]+) \[75%\]=([0-9\.]+)/ ) {
$allstats{$inthread}->{median25} = int($1 * 1000000); # change seconds to usec
$allstats{$inthread}->{median50} = int($2 * 1000000);
$allstats{$inthread}->{median75} = int($3 * 1000000);
}
elsif ( $line =~ m/info: lower\(secs\) upper\(secs\) recursions/ ) {
# since after this line we're unsure if we get these numbers
# at all, we sould consider this marker as the end of the
# block. Chances that we're parsing a file halfway written
# at this stage are small. Bold statement.
$donestats{$inthread} = 1;
next;
}
elsif ( $line =~ m/info:\s+(\d+)\.(\d+)\s+(\d+)\.(\d+)\s+(\d+)/ ) {
my ($froms, $fromus, $toms, $tous, $counter) = ($1, $2, $3, $4, $5);
my $prefix = '';
if ($froms > 0) {
$allstats{$inthread}->{'s_' . int($froms)} = $counter;
} else {
$allstats{$inthread}->{'us_' . int($fromus)} = $counter;
}
}
}
}
my @result;
# loop on the records we want to store
for my $key ( @records ) {
my $sum = 0;
# these are the different threads parsed
foreach my $thread ( 0 .. $numthreads - 1 ) {
$sum += ($allstats{$thread}->{$key} || 0);
}
print STDERR "$key = " . $sum . "\n" if $DEBUG;
push @result, $sum;
}
print join("\n", @result), "\n";
store \@result, UNBOUND_CACHE;
if ($DEBUG) {
print STDERR "Threads: " . (scalar keys %allstats) . "\n";
}

22
external/unbound/contrib/patch_rsamd5_enable.diff vendored
View File

@ -1,22 +0,0 @@
Index: validator/val_secalgo.c
===================================================================
--- validator/val_secalgo.c (revision 2759)
+++ validator/val_secalgo.c (working copy)
@@ -153,7 +153,7 @@
switch(id) {
case LDNS_RSAMD5:
/* RFC 6725 deprecates RSAMD5 */
- return 0;
+ return 1;
case LDNS_DSA:
case LDNS_DSA_NSEC3:
case LDNS_RSASHA1:
@@ -617,7 +617,7 @@
switch(id) {
case LDNS_RSAMD5:
/* RFC 6725 deprecates RSAMD5 */
- return 0;
+ return 1;
case LDNS_DSA:
case LDNS_DSA_NSEC3:
case LDNS_RSASHA1:

25
external/unbound/contrib/rc_d_unbound vendored
View File

@ -1,25 +0,0 @@
#!/bin/sh
#
# unbound freebsd startup rc.d script, modified from the named script.
# uses the default unbound installation path and pidfile location.
# copy this to /etc/rc.d/unbound
# and put unbound_enable="YES" into rc.conf
#
# PROVIDE: unbound
# REQUIRE: SERVERS cleanvar
# KEYWORD: shutdown
. /etc/rc.subr
name="unbound"
rcvar=`set_rcvar`
load_rc_config $name
command="/usr/local/sbin/unbound"
pidfile=${unbound_pidfile:-"/usr/local/etc/unbound/unbound.pid"}
command_args=${unbound_flags:-"-c /usr/local/etc/unbound/unbound.conf"}
extra_commands="reload"
run_rc_command "$1"

4
external/unbound/contrib/selinux/unbound.fc vendored
View File

@ -1,4 +0,0 @@
/etc/unbound(/.*)? system_u:object_r:unbound_conf_t:s0
/etc/rc\.d/init\.d/unbound -- system_u:object_r:unbound_initrc_exec_t:s0
/usr/sbin/unbound -- system_u:object_r:unbound_exec_t:s0
/var/run/unbound(/.*)? system_u:object_r:unbound_var_run_t:s0

42
external/unbound/contrib/selinux/unbound.te vendored
View File

@ -1,42 +0,0 @@
policy_module(unbound, 0.1.0)
type unbound_t;
type unbound_conf_t;
type unbound_exec_t;
type unbound_initrc_exec_t;
type unbound_var_run_t;
init_daemon_domain(unbound_t, unbound_exec_t)
init_script_file(unbound_initrc_exec_t)
role system_r types unbound_t;
# XXX
# unbound-{checkconf,control} are not protected. Do we need protect them?
# Unbound daemon
auth_use_nsswitch(unbound_t)
dev_read_urand(unbound_t)
corenet_all_recvfrom_unlabeled(unbound_t)
corenet_tcp_bind_all_nodes(unbound_t)
corenet_tcp_bind_dns_port(unbound_t)
corenet_tcp_bind_rndc_port(unbound_t)
corenet_udp_bind_all_nodes(unbound_t)
corenet_udp_bind_all_unreserved_ports(unbound_t)
corenet_udp_bind_dns_port(unbound_t)
files_read_etc_files(unbound_t)
files_pid_file(unbound_var_run_t)
files_type(unbound_conf_t)
libs_use_ld_so(unbound_t)
libs_use_shared_libs(unbound_t)
logging_send_syslog_msg(unbound_t)
manage_files_pattern(unbound_t, unbound_var_run_t, unbound_var_run_t)
miscfiles_read_localization(unbound_t)
read_files_pattern(unbound_t, unbound_conf_t, unbound_conf_t)
allow unbound_t self:capability { setuid chown net_bind_service setgid dac_override };
allow unbound_t self:tcp_socket create_stream_socket_perms;
allow unbound_t self:udp_socket create_socket_perms;
###################################################

134
external/unbound/contrib/unbound-host.nagios.patch vendored
View File

@ -1,134 +0,0 @@
Index: smallapp/unbound-host.c
===================================================================
--- smallapp/unbound-host.c (revision 2115)
+++ smallapp/unbound-host.c (working copy)
@@ -62,9 +62,18 @@
#include "libunbound/unbound.h"
#include <ldns/ldns.h>
+/** status variable ala nagios */
+#define FINAL_STATUS_OK 0
+#define FINAL_STATUS_WARNING 1
+#define FINAL_STATUS_CRITICAL 2
+#define FINAL_STATUS_UNKNOWN 3
+
/** verbosity for unbound-host app */
static int verb = 0;
+/** variable to determine final output */
+static int final_status = FINAL_STATUS_UNKNOWN;
+
/** Give unbound-host usage, and exit (1). */
static void
usage()
@@ -93,7 +102,7 @@
printf("Version %s\n", PACKAGE_VERSION);
printf("BSD licensed, see LICENSE in source package for details.\n");
printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
/** determine if str is ip4 and put into reverse lookup format */
@@ -138,7 +147,7 @@
*res = strdup(buf);
if(!*res) {
fprintf(stderr, "error: out of memory\n");
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
return 1;
}
@@ -158,7 +167,7 @@
}
if(!res) {
fprintf(stderr, "error: out of memory\n");
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
return res;
}
@@ -172,7 +181,7 @@
if(r == 0 && strcasecmp(t, "TYPE0") != 0 &&
strcmp(t, "") != 0) {
fprintf(stderr, "error unknown type %s\n", t);
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
return r;
}
@@ -191,7 +200,7 @@
if(r == 0 && strcasecmp(c, "CLASS0") != 0 &&
strcmp(c, "") != 0) {
fprintf(stderr, "error unknown class %s\n", c);
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
return r;
}
@@ -207,6 +216,19 @@
return "(insecure)";
}
+/** update the final status for the exit code */
+void
+update_final_status(struct ub_result* result)
+{
+ if (final_status == FINAL_STATUS_UNKNOWN || final_status == FINAL_STATUS_OK) {
+ if (result->secure) final_status = FINAL_STATUS_OK;
+ else if (result->bogus) final_status = FINAL_STATUS_CRITICAL;
+ else final_status = FINAL_STATUS_WARNING;
+ }
+ else if (final_status == FINAL_STATUS_WARNING && result->bogus)
+ final_status = FINAL_STATUS_CRITICAL;
+}
+
/** nice string for type */
static void
pretty_type(char* s, size_t len, int t)
@@ -353,7 +375,7 @@
} else {
fprintf(stderr, "could not parse "
"reply packet to ANY query\n");
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
ldns_pkt_free(p);
@@ -388,9 +410,10 @@
ret = ub_resolve(ctx, q, t, c, &result);
if(ret != 0) {
fprintf(stderr, "resolve error: %s\n", ub_strerror(ret));
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
pretty_output(q, t, c, result, docname);
+ update_final_status(result);
ret = result->nxdomain;
ub_resolve_free(result);
return ret;
@@ -427,7 +450,7 @@
{
if(r != 0) {
fprintf(stderr, "error: %s\n", ub_strerror(r));
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
}
@@ -448,7 +471,7 @@
ctx = ub_ctx_create();
if(!ctx) {
fprintf(stderr, "error: out of memory\n");
- exit(1);
+ exit(FINAL_STATUS_UNKNOWN);
}
/* parse the options */
@@ -509,5 +532,5 @@
usage();
lookup(ctx, argv[0], qtype, qclass);
- return 0;
+ return final_status;
}

139
external/unbound/contrib/unbound.init vendored
View File

@ -1,139 +0,0 @@
#!/bin/sh
#
# unbound This shell script takes care of starting and stopping
# unbound (DNS server).
#
# chkconfig: - 14 86
# description: unbound is a Domain Name Server (DNS) \
# that is used to resolve host names to IP addresses.
### BEGIN INIT INFO
# Provides: $named unbound
# Required-Start: $network $local_fs
# Required-Stop: $network $local_fs
# Should-Start: $syslog
# Should-Stop: $syslog
# Short-Description: unbound recursive Domain Name Server.
# Description: unbound is a Domain Name Server (DNS)
# that is used to resolve host names to IP addresses.
### END INIT INFO
# Source function library.
. /etc/rc.d/init.d/functions
exec="/usr/sbin/unbound"
prog="unbound"
config="/var/unbound/unbound.conf"
pidfile="/var/unbound/unbound.pid"
rootdir="/var/unbound"
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
lockfile=/var/lock/subsys/$prog
start() {
[ -x $exec ] || exit 5
[ -f $config ] || exit 6
echo -n $"Starting $prog: "
# setup root jail
if [ -s /etc/localtime ]; then
[ -d ${rootdir}/etc ] || mkdir -p ${rootdir}/etc ;
if [ ! -e ${rootdir}/etc/localtime ] || /usr/bin/cmp -s /etc/localtime ${rootdir}/etc/localtime; then
cp -fp /etc/localtime ${rootdir}/etc/localtime
fi;
fi;
if [ -s /etc/resolv.conf ]; then
[ -d ${rootdir}/etc ] || mkdir -p ${rootdir}/etc ;
if [ ! -e ${rootdir}/etc/resolv.conf ] || /usr/bin/cmp -s /etc/resolv.conf ${rootdir}/etc/resolv.conf; then
cp -fp /etc/resolv.conf ${rootdir}/etc/resolv.conf
fi;
fi;
if ! egrep -q '^/[^[:space:]]+[[:space:]]+'${rootdir}'/dev/log' /proc/mounts; then
[ -d ${rootdir}/dev ] || mkdir -p ${rootdir}/dev ;
[ -e ${rootdir}/dev/log ] || touch ${rootdir}/dev/log
mount --bind -n /dev/log ${rootdir}/dev/log >/dev/null 2>&1;
fi;
if ! egrep -q '^/[^[:space:]]+[[:space:]]+'${rootdir}'/dev/random' /proc/mounts; then
[ -d ${rootdir}/dev ] || mkdir -p ${rootdir}/dev ;
[ -e ${rootdir}/dev/random ] || touch ${rootdir}/dev/random
mount --bind -n /dev/random ${rootdir}/dev/random >/dev/null 2>&1;
fi;
# if not running, start it up here
daemon $exec
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
# stop it here, often "killproc $prog"
killproc -p $pidfile $prog
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
if egrep -q '^/[^[:space:]]+[[:space:]]+'${rootdir}'/dev/log' /proc/mounts; then
umount ${rootdir}/dev/log >/dev/null 2>&1
fi;
if egrep -q '^/[^[:space:]]+[[:space:]]+'${rootdir}'/dev/random' /proc/mounts; then
umount ${rootdir}/dev/random >/dev/null 2>&1
fi;
return $retval
}
restart() {
stop
start
}
reload() {
kill -HUP `cat $pidfile`
}
force_reload() {
restart
}
rh_status() {
# run checks to determine if the service is running or use generic status
status -p $pidfile $prog
}
rh_status_q() {
rh_status -p $pidfile >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
restart
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
exit 2
esac
exit $?

119
external/unbound/contrib/unbound.init_fedora vendored
View File

@ -1,119 +0,0 @@
#!/bin/sh
#
# unbound This shell script takes care of starting and stopping
# unbound (DNS server).
#
# chkconfig: - 14 86
# description: unbound is a Domain Name Server (DNS) \
# that is used to resolve host names to IP addresses.
### BEGIN INIT INFO
# Provides: unbound
# Required-Start: $network $local_fs
# Required-Stop: $network $local_fs
# Should-Start: $syslog
# Should-Stop: $syslog
# Short-Description: unbound recursive Domain Name Server.
# Description: unbound is a Domain Name Server (DNS)
# that is used to resolve host names to IP addresses.
### END INIT INFO
# Source function library.
. /etc/rc.d/init.d/functions
exec="/usr/sbin/unbound"
config="/var/lib/unbound/unbound.conf"
rootdir="/var/lib/unbound"
pidfile="/var/run/unbound/unbound.pid"
[ -e /etc/sysconfig/unbound ] && . /etc/sysconfig/unbound
lockfile=/var/lock/subsys/unbound
start() {
[ -x $exec ] || exit 5
[ -f $config ] || exit 6
echo -n $"Starting unbound: "
if [ ! -e ${rootdir}/etc/resolv.conf ] || /usr/bin/cmp -s /etc/resolv.conf ${rootdir}/etc/resolv.conf; then
cp -fp /etc/resolv.conf ${rootdir}/etc/resolv.conf
fi;
if [ ! -e ${rootdir}/etc/localtime ] || /usr/bin/cmp -s /etc/localtime ${rootdir}/etc/localtime; then
cp -fp /etc/localtime ${rootdir}/etc/localtime
fi;
mount --bind -n /dev/log ${rootdir}/dev/log >/dev/null 2>&1;
mount --bind -n /dev/random ${rootdir}/dev/random >/dev/null 2>&1;
mount --bind -n /var/run/unbound ${rootdir}/var/run/unbound >/dev/null 2>&1;
# if not running, start it up here
daemon $exec
retval=$?
[ $retval -eq 0 ] && touch $lockfile
echo
}
stop() {
echo -n $"Stopping unbound: "
# stop it here, often "killproc unbound"
killproc -p $pidfile unbound
retval=$?
[ $retval -eq 0 ] && rm -f $lockfile
for mountfile in /dev/log /dev/random /etc/localtime /etc/resolv.conf /var/run/unbound
do
if egrep -q '^/[^[:space:]]+[[:space:]]+'${rootdir}''${mountfile}'' /proc/mounts; then
umount ${rootdir}$mountfile >/dev/null 2>&1
fi;
done
echo
}
restart() {
stop
start
}
reload() {
kill -HUP `cat $pidfile`
}
force_reload() {
restart
}
rh_status() {
# run checks to determine if the service is running or use generic status
status -p $pidfile unbound
}
rh_status_q() {
rh_status -p $pidfile >/dev/null 2>&1
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
reload)
reload
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
restart
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
exit 2
esac
exit $?

42
external/unbound/contrib/unbound.plist vendored
View File

@ -1,42 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd >
<plist version="1.0">
<!--
Unbound plist file for use by MacOSX launchd(8) using launchctl(1).
Copy this file to /Library/LaunchDaemons. Launchd keeps unbound running.
Setup your unbound.conf with the following additional settings.
server:
do-daemonize: no
username: ""
chroot: ""
directory: ""
These actions are performed by launchd (for the option values, see below).
-->
<dict>
<key>Label</key>
<string>unbound</string>
<key>ProgramArguments</key>
<array>
<string>unbound</string>
</array>
<key>UserName</key>
<string>unbound</string>
<key>RootDirectory</key>
<string>/usr/local/etc/unbound</string>
<key>WorkingDirectory</key>
<string>/usr/local/etc/unbound</string>
<key>KeepAlive</key>
<true/>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>

112
external/unbound/contrib/unbound.spec vendored
View File

@ -1,112 +0,0 @@
Summary: Validating, recursive, and caching DNS resolver
Name: unbound
Version: 1.4.18
Release: 1%{?dist}
License: BSD
Url: http://www.nlnetlabs.nl/unbound/
Source: http://www.unbound.net/downloads/%{name}-%{version}.tar.gz
#Source1: unbound.init
Group: System Environment/Daemons
Requires: ldns
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
BuildRequires: flex, openssl-devel, expat-devel, ldns-devel
%description
Unbound is a validating, recursive, and caching DNS resolver.
The C implementation of Unbound is developed and maintained by NLnet
Labs. It is based on ideas and algorithms taken from a java prototype
developed by Verisign labs, Nominet, Kirei and ep.net.
Unbound is designed as a set of modular components, so that also
DNSSEC (secure DNS) validation and stub-resolvers (that do not run
as a server, but are linked into an application) are easily possible.
The source code is under a BSD License.
%prep
%setup -q
# configure with /var/unbound/unbound.conf so that all default chroot,
# pidfile and config file are in /var/unbound, ready for chroot jail set up.
%configure --with-conf-file=%{_localstatedir}/%{name}/unbound.conf --disable-rpath
%build
#%{__make} %{?_smp_mflags}
make
%install
rm -rf %{buildroot}
%{__make} DESTDIR=%{buildroot} install
install -d 0700 %{buildroot}%{_localstatedir}/%{name}
install -d 0755 %{buildroot}%{_initrddir}
install -m 0755 contrib/unbound.init %{buildroot}%{_initrddir}/unbound
# add symbolic link from /etc/unbound.conf -> /var/unbound/unbound.conf
ln -s %{_localstatedir}/unbound/unbound.conf %{buildroot}%{_sysconfdir}/unbound.conf
# remove static library from install (fedora packaging guidelines)
rm -f %{buildroot}%{_libdir}/libunbound.a %{buildroot}%{_libdir}/libunbound.la
%clean
rm -rf ${RPM_BUILD_ROOT}
%files
%defattr(-,root,root,-)
%doc doc/README doc/CREDITS doc/LICENSE doc/FEATURES
%attr(0755,root,root) %{_initrddir}/%{name}
%attr(0700,%{name},%{name}) %dir %{_localstatedir}/%{name}
%attr(0644,%{name},%{name}) %config(noreplace) %{_localstatedir}/%{name}/unbound.conf
%attr(0644,%{name},%{name}) %config(noreplace) %{_sysconfdir}/unbound.conf
%{_sbindir}/*
%{_mandir}/*/*
%{_includedir}/*
%{_libdir}/libunbound*
%pre
getent group unbound >/dev/null || groupadd -r unbound
getent passwd unbound >/dev/null || \
useradd -r -g unbound -d /var/unbound -s /sbin/nologin \
-c "unbound name daemon" unbound
exit 0
%post
# This adds the proper /etc/rc*.d links for the script
/sbin/chkconfig --add %{name}
%preun
if [ $1 -eq 0 ]; then
/sbin/service %{name} stop >/dev/null 2>&1
/sbin/chkconfig --del %{name}
# remove root jail
rm -f /var/unbound/dev/log /var/unbound/dev/random /var/unbound/etc/localtime /var/unbound/etc/resolv.conf >/dev/null 2>&1
rmdir /var/unbound/dev >/dev/null 2>&1 || :
rmdir /var/unbound/etc >/dev/null 2>&1 || :
rmdir /var/unbound >/dev/null 2>&1 || :
fi
%postun
if [ "$1" -ge "1" ]; then
/sbin/service %{name} condrestart >/dev/null 2>&1 || :
fi
%changelog
* Thu Jul 13 2011 Wouter Wijngaards <wouter@nlnetlabs.nl> - 1.4.8
- ldns required and ldns-devel required for build, no more ldns-builtin.
* Thu Mar 17 2011 Wouter Wijngaards <wouter@nlnetlabs.nl> - 1.4.8
- removed --disable-gost, assume recent openssl on the destination platform.
* Wed Mar 16 2011 Harold Jones <hajones@verisign.com> - 1.4.8
- Bump version number to latest
- Add expat-devel to BuildRequires
- Added --disable-gost for building on CentOS 5.x
- Added --with-ldns-builtin for CentOS 5.x
* Thu May 22 2008 Wouter Wijngaards <wouter@nlnetlabs.nl> - 1.0.0
- contrib changes from Patrick Vande Walle.
* Thu Apr 25 2008 Wouter Wijngaards <wouter@nlnetlabs.nl> - 0.12
- Using parts from ports collection entry by Jaap Akkerhuis.
- Using Fedoraproject wiki guidelines.
* Wed Apr 23 2008 Wouter Wijngaards <wouter@nlnetlabs.nl> - 0.11
- Initial version.

433
external/unbound/contrib/unbound.spec_fedora vendored
View File

@ -1,433 +0,0 @@
# not ready yet
%{?!with_python: %global with_python 1}
%if %{with_python}
%{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
%{!?python_sitearch: %global python_sitearch %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib(1)")}
%endif
Summary: Validating, recursive, and caching DNS(SEC) resolver
Name: unbound
Version: 1.4.13
Release: 1%{?dist}
License: BSD
Url: http://www.nlnetlabs.nl/unbound/
Source: http://www.unbound.net/downloads/%{name}-%{version}.tar.gz
Source1: unbound.init
Source2: unbound.conf
Source3: unbound.munin
Source4: unbound_munin_
Source5: root.key
Patch1: unbound-1.2-glob.patch
Group: System Environment/Daemons
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
BuildRequires: flex, openssl-devel , ldns-devel >= 1.5.0,
BuildRequires: libevent-devel expat-devel
%if %{with_python}
BuildRequires: python-devel swig
%endif
# Required for SVN versions
# BuildRequires: bison
Requires(post): chkconfig
Requires(preun): chkconfig
Requires(preun): initscripts
Requires(postun): initscripts
Requires: ldns >= 1.5.0
Requires(pre): shadow-utils
Obsoletes: dnssec-conf < 1.27-2
Provides: dnssec-conf = 1.27-1
%description
Unbound is a validating, recursive, and caching DNS(SEC) resolver.
The C implementation of Unbound is developed and maintained by NLnet
Labs. It is based on ideas and algorithms taken from a java prototype
developed by Verisign labs, Nominet, Kirei and ep.net.
Unbound is designed as a set of modular components, so that also
DNSSEC (secure DNS) validation and stub-resolvers (that do not run
as a server, but are linked into an application) are easily possible.
%package munin
Summary: Plugin for the munin / munin-node monitoring package
Group: System Environment/Daemons
Requires: munin-node
Requires: %{name} = %{version}-%{release}, bc
%description munin
Plugin for the munin / munin-node monitoring package
%package devel
Summary: Development package that includes the unbound header files
Group: Development/Libraries
Requires: %{name}-libs = %{version}-%{release}, openssl-devel, ldns-devel
%description devel
The devel package contains the unbound library and the include files
%package libs
Summary: Libraries used by the unbound server and client applications
Group: Applications/System
Requires(post): /sbin/ldconfig
Requires(postun): /sbin/ldconfig
Requires: openssl
%description libs
Contains libraries used by the unbound server and client applications
%if %{with_python}
%package python
Summary: Python modules and extensions for unbound
Group: Applications/System
Requires: %{name}-libs = %{version}-%{release}
%description python
Python modules and extensions for unbound
%endif
%prep
%setup -q
%patch1 -p1
%build
%configure --with-ldns= --with-libevent --with-pthreads --with-ssl \
--disable-rpath --disable-static \
--with-conf-file=%{_sysconfdir}/%{name}/unbound.conf \
--with-pidfile=%{_localstatedir}/run/%{name}/%{name}.pid \
%if %{with_python}
--with-pythonmodule --with-pyunbound \
%endif
--enable-sha2 --disable-gost
%{__make} %{?_smp_mflags}
%install
rm -rf %{buildroot}
%{__make} DESTDIR=%{buildroot} install
install -d 0755 %{buildroot}%{_initrddir}
install -m 0755 %{SOURCE1} %{buildroot}%{_initrddir}/unbound
install -m 0755 %{SOURCE2} %{buildroot}%{_sysconfdir}/unbound
# Install munin plugin and its softlinks
install -d 0755 %{buildroot}%{_sysconfdir}/munin/plugin-conf.d
install -m 0644 %{SOURCE3} %{buildroot}%{_sysconfdir}/munin/plugin-conf.d/unbound
install -d 0755 %{buildroot}%{_datadir}/munin/plugins/
install -m 0755 %{SOURCE4} %{buildroot}%{_datadir}/munin/plugins/unbound
for plugin in unbound_munin_hits unbound_munin_queue unbound_munin_memory unbound_munin_by_type unbound_munin_by_class unbound_munin_by_opcode unbound_munin_by_rcode unbound_munin_by_flags unbound_munin_histogram; do
ln -s unbound %{buildroot}%{_datadir}/munin/plugins/$plugin
done
# install root and DLV key
install -m 0644 %{SOURCE5} %{SOURCE6} %{buildroot}%{_sysconfdir}/unbound/
# remove static library from install (fedora packaging guidelines)
rm %{buildroot}%{_libdir}/*.la
%if %{with_python}
rm %{buildroot}%{python_sitearch}/*.la
%endif
mkdir -p %{buildroot}%{_localstatedir}/run/unbound
%clean
rm -rf ${RPM_BUILD_ROOT}
%files
%defattr(-,root,root,-)
%doc doc/README doc/CREDITS doc/LICENSE doc/FEATURES
%attr(0755,root,root) %{_initrddir}/%{name}
%attr(0755,root,root) %dir %{_sysconfdir}/%{name}
%ghost %attr(0755,unbound,unbound) %dir %{_localstatedir}/run/%{name}
%attr(0644,root,root) %config(noreplace) %{_sysconfdir}/%{name}/unbound.conf
%attr(0644,root,root) %config(noreplace) %{_sysconfdir}/%{name}/root.key
%{_sbindir}/*
%{_mandir}/*/*
%if %{with_python}
%files python
%defattr(-,root,root,-)
%{python_sitearch}/*
%doc libunbound/python/examples/*
%doc pythonmod/examples/*
%endif
%files munin
%defattr(-,root,root,-)
%config(noreplace) %{_sysconfdir}/munin/plugin-conf.d/unbound
%{_datadir}/munin/plugins/unbound*
%files devel
%defattr(-,root,root,-)
%{_libdir}/libunbound.so
%{_includedir}/unbound.h
%doc README
%files libs
%defattr(-,root,root,-)
%{_libdir}/libunbound.so.*
%doc doc/README doc/LICENSE
%pre
getent group unbound >/dev/null || groupadd -r unbound
getent passwd unbound >/dev/null || \
useradd -r -g unbound -d %{_sysconfdir}/unbound -s /sbin/nologin \
-c "Unbound DNS resolver" unbound
exit 0
%post
/sbin/chkconfig --add %{name}
%post libs -p /sbin/ldconfig
%preun
if [ "$1" -eq 0 ]; then
/sbin/service %{name} stop >/dev/null 2>&1
/sbin/chkconfig --del %{name}
fi
%postun
if [ "$1" -ge "1" ]; then
/sbin/service %{name} condrestart >/dev/null 2>&1 || :
fi
%postun libs -p /sbin/ldconfig
%changelog
* Tue Sep 06 2011 Paul Wouters <paul@xelerance.com> - 1.4.13-1
- Updated to 1.4.13
- Fix install location of pythonmod from sitelib to sitearch
- Removed patches merged in by upstream
- Removed versioned openssl dep, it differs per branch
* Mon Aug 08 2011 Paul Wouters <paul@xelerance.com> - 1.4.12-3
- Added pythonmod docs and examples
- Fix for python module load in the server (Tom Hendrikx)
- No longer enable --enable-debug as it causes degraded performance
under load.
* Mon Jul 18 2011 Paul Wouters <paul@xelerance.com> - 1.4.12-1
- Updated to 1.4.12
* Sun Jul 03 2011 Paul Wouters <paul@xelerance.com> - 1.4.11-1
- Updated to 1.4.11
- removed integrated CVE patch
- updated stock unbound.conf for new options introduced
* Mon Jun 06 2011 Paul Wouters <paul@xelerance.com> - 1.4.10-1
- Added ghost for /var/run/unbound (bz#656710)
* Mon Jun 06 2011 Paul Wouters <paul@xelerance.com> - 1.4.9-3
- rebuilt
* Wed May 25 2011 Paul Wouters <paul@xelerance.com> - 1.4.9-2
- Applied patch for CVE-2011-1922 DoS vulnerability
* Sun Mar 27 2011 Paul Wouters <paul@xelerance.com> - 1.4.9-1
- Updated to 1.4.9
* Sat Feb 12 2011 Paul Wouters <paul@xelerance.com> - 1.4.8-2
- rebuilt
* Tue Jan 25 2011 Paul Wouters <paul@xelerance.com> - 1.4.8-1
- Updated to 1.4.8
- Enable root key for DNSSEC
- Fix unbound-munin to use proper file (could cause excessive logging)
- Build unbound-python per default
- Disable gost as Fedora/EPEL does not allow ECC and has mangled openssl
* Tue Oct 26 2010 Paul Wouters <paul@xelerance.com> - 1.4.5-4
- Revert last build - it was on the wrong branch
* Tue Oct 26 2010 Paul Wouters <paul@xelerance.com> - 1.4.5-3
- Disable do-ipv6 per default - causes severe degradation on non-ipv6 machines
(see comments in inbound.conf)
* Tue Jun 15 2010 Paul Wouters <paul@xelerance.com> - 1.4.5-2
- Bump release - forgot to upload the new tar ball.
* Tue Jun 15 2010 Paul Wouters <paul@xelerance.com> - 1.4.5-1
- Upgraded to 1.4.5
* Mon May 31 2010 Paul Wouters <paul@xelerance.com> - 1.4.4-2
- Added accidentally omitted svn patches to cvs
* Mon May 31 2010 Paul Wouters <paul@xelerance.com> - 1.4.4-1
- Upgraded to 1.4.4 with svn patches
- Obsolete dnssec-conf to ensure it is de-installed
* Thu Mar 11 2010 Paul Wouters <paul@xelerance.com> - 1.4.3-1
- Update to 1.4.3 that fixes 64bit crasher
* Tue Mar 09 2010 Paul Wouters <paul@xelerance.com> - 1.4.2-1
- Updated to 1.4.2
- Updated unbound.conf with new options
- Enabled pre-fetching DNSKEY records (DNSSEC speedup)
- Enabled re-fetching popular records before they expire
- Enabled logging of DNSSEC validation errors
* Mon Mar 01 2010 Paul Wouters <paul@xelerance.com> - 1.4.1-5
- Overriding -D_GNU_SOURCE is no longer needed. This fixes DSO issues
with pthreads
* Wed Feb 24 2010 Paul Wouters <paul@xelerance.com> - 1.4.1-3
- Change make/configure lines to attempt to fix -lphtread linking issue
* Thu Feb 18 2010 Paul Wouters <paul@xelerance.com> - 1.4.1-2
- Removed dependency for dnssec-conf
- Added ISC DLV key (formerly in dnssec-conf)
- Fixup old DLV locations in unbound.conf file via %%post
- Fix parent child disagreement handling and no-ipv6 present [svn r1953]
* Tue Jan 05 2010 Paul Wouters <paul@xelerance.com> - 1.4.1-1
- Updated to 1.4.1
- Changed %%define to %%global
* Thu Oct 08 2009 Paul Wouters <paul@xelerance.com> - 1.3.4-2
- Bump version
* Thu Oct 08 2009 Paul Wouters <paul@xelerance.com> - 1.3.4-1
- Upgraded to 1.3.4. Security fix with validating NSEC3 records
* Fri Aug 21 2009 Tomas Mraz <tmraz@redhat.com> - 1.3.3-2
- rebuilt with new openssl
* Mon Aug 17 2009 Paul Wouters <paul@xelerance.com> - 1.3.3-1
- Updated to 1.3.3
* Sun Jul 26 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.3.0-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild
* Sat Jun 20 2009 Paul Wouters <paul@xelerance.com> - 1.3.0-2
- Added missing glob patch to cvs
- Place python macros within the %%with_python check
* Sat Jun 20 2009 Paul Wouters <paul@xelerance.com> - 1.3.0-1
- Updated to 1.3.0
- Added unbound-python sub package. disabled for now
- Patch from svn to fix DLV lookups
- Patches from svn to detect wrong truncated response from BIND 9.6.1 with
minimal-responses)
- Added Default-Start and Default-Stop to unbound.init
- Re-enabled --enable-sha2
- Re-enabled glob.patch
* Wed May 20 2009 Paul Wouters <paul@xelerance.com> - 1.2.1-7
- unbound-iterator.patch was not committed
* Wed May 20 2009 Paul Wouters <paul@xelerance.com> - 1.2.1-6
- Fix for https://bugzilla.redhat.com/show_bug.cgi?id=499793
* Tue Mar 17 2009 Paul Wouters <paul@xelerance.com> - 1.2.1-5
- Use --nocheck to avoid giving an error on missing unbound-remote certs/keys
* Tue Mar 10 2009 Adam Tkac <atkac redhat com> - 1.2.1-4
- enable DNSSEC only if it is enabled in sysconfig/dnssec
* Mon Mar 09 2009 Adam Tkac <atkac redhat com> - 1.2.1-3
- add DNSSEC support to initscript and enabled it per default
- add requires dnssec-conf
* Wed Feb 25 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.1-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_11_Mass_Rebuild
* Tue Feb 10 2009 Paul Wouters <paul@xelerance.com - 1.2.1-1
- updated to 1.2.1
* Sun Jan 18 2009 Tomas Mraz <tmraz@redhat.com> - 1.2.0-2
- rebuild with new openssl
* Wed Jan 14 2009 Paul Wouters <paul@xelerance.com - 1.2.0-1
- Updated to 1.2.0
- Added dependency on minimum SSL for CVE-2008-5077
- Added dependency on bc for unbound-munin
- Added minimum requirement of libevent 1.4.5. Crashes with older versions
(note: libevent is stale in EL-4 and not in EL-5, needs fixing there)
- Removed dependency on selinux-policy (will get used when available)
- Enable options as per draft-wijngaards-dnsext-resolver-side-mitigation-00.txt
- Enable unwanted-reply-threshold to mitigate against a Kaminsky attack
- Enable val-clean-additional to drop addition unsigned data from signed
response.
- Removed patches (got merged into upstream)
* Mon Jan 5 2009 Paul Wouters <paul@xelerance.com> - 1.1.1-7
- Modified scandir patch to silently fail when wildcard matches nothing
- Patch to allow unbound-checkconf to find empty wildcard matches
* Mon Jan 5 2009 Paul Wouters <paul@xelerance.com> - 1.1.1-6
- Added scandir patch for trusted-keys-file: option, which
is used to load multiple dnssec keys in bind file format
* Mon Dec 8 2008 Paul Wouters <paul@xelerance.com> - 1.1.1-4
- Added Requires: for selinux-policy >= 3.5.13-33 for proper SElinux rules.
* Mon Dec 1 2008 Paul Wouters <paul@xelerance.com> - 1.1.1-3
- We did not own the /etc/unbound directory (#474020)
- Fixed cvs anomalies
* Fri Nov 28 2008 Adam Tkac <atkac redhat com> - 1.1.1-2
- removed all obsolete chroot related stuff
- label control certs after generation correctly
* Thu Nov 20 2008 Paul Wouters <paul@xelerance.com> - 1.1.1-1
- Updated to unbound 1.1.1 which fixes a crasher and
addresses nlnetlabs bug #219
* Wed Nov 19 2008 Paul Wouters <paul@xelerance.com> - 1.1.0-3
- Remove the chroot, obsoleted by SElinux
- Add additional munin plugin links supported by unbound plugin
- Move configuration directory from /var/lib/unbound to /etc/unbound
- Modified unbound.init and unbound.conf to account for chroot changes
- Updated unbound.conf with new available options
- Enabled dns-0x20 protection per default
* Wed Nov 19 2008 Adam Tkac <atkac redhat com> - 1.1.0-2
- unbound-1.1.0-log_open.patch
- make sure log is opened before chroot call
- tracked as http://www.nlnetlabs.nl/bugs/show_bug.cgi?id=219
- removed /dev/log and /var/run/unbound and /etc/resolv.conf from
chroot, not needed
- don't mount files in chroot, it causes problems during updates
- fixed typo in default config file
* Fri Nov 14 2008 Paul Wouters <paul@xelerance.com> - 1.1.0-1
- Updated to version 1.1.0
- Updated unbound.conf's statistics options and remote-control
to work properly for munin
- Added unbound-munin package
- Generate unbound remote-control key/certs on first startup
- Required ldns is now 1.4.0
* Wed Oct 22 2008 Paul Wouters <paul@xelerance.com> - 1.0.2-5
- Only call ldconfig in -libs package
- Move configure into build section
- devel subpackage should only depend on libs subpackage
* Tue Oct 21 2008 Paul Wouters <paul@xelerance.com> - 1.0.2-4
- Fix CFLAGS getting lost in build
- Don't enable interface-automatic:yes because that
causes unbound to listen on 0.0.0.0 instead of 127.0.0.1
* Sun Oct 19 2008 Paul Wouters <paul@xelerance.com> - 1.0.2-3
- Split off unbound-libs, make build verbose
* Thu Oct 9 2008 Paul Wouters <paul@xelerance.com> - 1.0.2-2
- FSB compliance, chroot fixes, initscript fixes
* Thu Sep 11 2008 Paul Wouters <paul@xelerance.com> - 1.0.2-1
- Upgraded to 1.0.2
* Wed Jul 16 2008 Paul Wouters <paul@xelerance.com> - 1.0.1-1
- upgraded to new release
* Wed May 21 2008 Paul Wouters <paul@xelerance.com> - 1.0.0-2
- Build against ldns-1.3.0
* Wed May 21 2008 Paul Wouters <paul@xelerance.com> - 1.0.0-1
- Split of -devel package, fixed dependencies, make rpmlint happy
* Thu Apr 25 2008 Wouter Wijngaards <wouter@nlnetlabs.nl> - 0.12
- Using parts from ports collection entry by Jaap Akkerhuis.
- Using Fedoraproject wiki guidelines.
* Wed Apr 23 2008 Wouter Wijngaards <wouter@nlnetlabs.nl> - 0.11
- Initial version.

105
external/unbound/contrib/unbound_cache.cmd vendored
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@ -1,105 +0,0 @@
@echo off
rem --------------------------------------------------------------
rem -- DNS cache save/load script
rem --
rem -- Version 1.2
rem -- By Yuri Voinov (c) 2014
rem --------------------------------------------------------------
rem Variables
set prefix="C:\Program Files (x86)"
set program_path=%prefix%\Unbound
set uc=%program_path%\unbound-control.exe
set fname="unbound_cache.dmp"
rem Check Unbound installed
if exist %uc% goto start
echo Unbound control not found. Exiting...
exit 1
:start
rem arg1 - command (optional)
rem arg2 - file name (optional)
set arg1=%1
set arg2=%2
if /I "%arg1%" == "-h" goto help
if "%arg1%" == "" (
echo Loading cache from %program_path%\%fname%
dir /a %program_path%\%fname%
type %program_path%\%fname%|%uc% load_cache
goto end
)
if defined %arg2% (goto Not_Defined) else (goto Defined)
rem If file not specified; use default dump file
:Not_defined
if /I "%arg1%" == "-s" (
echo Saving cache to %program_path%\%fname%
%uc% dump_cache>%program_path%\%fname%
dir /a %program_path%\%fname%
echo ok
goto end
)
if /I "%arg1%" == "-l" (
echo Loading cache from %program_path%\%fname%
dir /a %program_path%\%fname%
type %program_path%\%fname%|%uc% load_cache
goto end
)
if /I "%arg1%" == "-r" (
echo Saving cache to %program_path%\%fname%
dir /a %program_path%\%fname%
%uc% dump_cache>%program_path%\%fname%
echo ok
echo Loading cache from %program_path%\%fname%
type %program_path%\%fname%|%uc% load_cache
goto end
)
rem If file name specified; use this filename
:Defined
if /I "%arg1%" == "-s" (
echo Saving cache to %arg2%
%uc% dump_cache>%arg2%
dir /a %arg2%
echo ok
goto end
)
if /I "%arg1%" == "-l" (
echo Loading cache from %arg2%
dir /a %arg2%
type %arg2%|%uc% load_cache
goto end
)
if /I "%arg1%" == "-r" (
echo Saving cache to %arg2%
dir /a %arg2%
%uc% dump_cache>%arg2%
echo ok
echo Loading cache from %arg2%
type %arg2%|%uc% load_cache
goto end
)
:help
echo Usage: unbound_cache.cmd [-s] or [-l] or [-r] or [-h] [filename]
echo.
echo l - Load - default mode. Warming up Unbound DNS cache from saved file. cache-ttl must be high value.
echo s - Save - save Unbound DNS cache contents to plain file with domain names.
echo r - Reload - reloadind new cache entries and refresh existing cache
echo h - this screen.
echo filename - file to save/load dumped cache. If not specified, %program_path%\%fname% will be used instead.
echo Note: Run without any arguments will be in default mode.
echo Also, unbound-control must be configured.
exit 1
:end
exit 0

174
external/unbound/contrib/unbound_cache.sh vendored
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@ -1,174 +0,0 @@
#!/sbin/sh
# --------------------------------------------------------------
# -- DNS cache save/load script
# --
# -- Version 1.2
# -- By Yuri Voinov (c) 2006, 2014
# --------------------------------------------------------------
#
# ident "@(#)unbound_cache.sh 1.2 14/10/30 YV"
#
#############
# Variables #
#############
# Installation base dir
CONF="/etc/opt/csw/unbound"
BASE="/opt/csw"
# Unbound binaries
UC="$BASE/sbin/unbound-control"
FNAME="unbound_cache.dmp"
# OS utilities
BASENAME=`which basename`
CAT=`which cat`
CUT=`which cut`
ECHO=`which echo`
EXPR=`which expr`
GETOPT=`which getopt`
ID=`which id`
LS=`which ls`
###############
# Subroutines #
###############
usage_note ()
{
# Script usage note
$ECHO "Usage: `$BASENAME $0` [-s] or [-l] or [-r] or [-h] [filename]"
$ECHO .
$ECHO "l - Load - default mode. Warming up Unbound DNS cache from saved file. cache-ttl must be high value."
$ECHO "s - Save - save Unbound DNS cache contents to plain file with domain names."
$ECHO "r - Reload - reloadind new cache entries and refresh existing cache"
$ECHO "h - this screen."
$ECHO "filename - file to save/load dumped cache. If not specified, $CONF/$FNAME will be used instead."
$ECHO "Note: Run without any arguments will be in default mode."
$ECHO " Also, unbound-control must be configured."
exit 0
}
root_check ()
{
if [ ! `$ID | $CUT -f1 -d" "` = "uid=0(root)" ]; then
$ECHO "ERROR: You must be super-user to run this script."
exit 1
fi
}
check_uc ()
{
if [ ! -f "$UC" ]; then
$ECHO .
$ECHO "ERROR: $UC not found. Exiting..."
exit 1
fi
}
check_saved_file ()
{
filename=$1
if [ ! -z "$filename" -a ! -f "$filename" ]; then
$ECHO .
$ECHO "ERROR: File $filename does not exists. Save it first."
exit 1
elif [ ! -f "$CONF/$FNAME" ]; then
$ECHO .
$ECHO "ERROR: File $CONF/$FNAME does not exists. Save it first."
exit 1
fi
}
save_cache ()
{
# Save unbound cache
filename=$1
if [ -z "$filename" ]; then
$ECHO "Saving cache in $CONF/$FNAME..."
$UC dump_cache>$CONF/$FNAME
$LS -lh $CONF/$FNAME
else
$ECHO "Saving cache in $filename..."
$UC dump_cache>$filename
$LS -lh $filename
fi
$ECHO "ok"
}
load_cache ()
{
# Load saved cache contents and warmup cache
filename=$1
if [ -z "$filename" ]; then
$ECHO "Loading cache from saved $CONF/$FNAME..."
$LS -lh $CONF/$FNAME
check_saved_file $filename
$CAT $CONF/$FNAME|$UC load_cache
else
$ECHO "Loading cache from saved $filename..."
$LS -lh $filename
check_saved_file $filename
$CAT $filename|$UC load_cache
fi
}
reload_cache ()
{
# Reloading and refresh existing cache and saved dump
filename=$1
save_cache $filename
load_cache $filename
}
##############
# Main block #
##############
# Root check
root_check
# Check unbound-control
check_uc
# Check command-line arguments
if [ "x$*" = "x" ]; then
# If arguments list empty,load cache by default
load_cache
else
arg_list=$*
# Parse command line
set -- `$GETOPT sSlLrRhH: $arg_list` || {
usage_note 1>&2
}
# Read arguments
for i in $arg_list
do
case $i in
-s | -S) save="1";;
-l | -L) save="0";;
-r | -R) save="2";;
-h | -H | \?) usage_note;;
*) shift
file=$1
break;;
esac
shift
done
# Remove trailing --
shift `$EXPR $OPTIND - 1`
fi
if [ "$save" = "1" ]; then
save_cache $file
elif [ "$save" = "0" ]; then
load_cache $file
elif [ "$save" = "2" ]; then
reload_cache $file
fi
exit 0

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external/unbound/contrib/unbound_cacti.tar.gz vendored
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559
external/unbound/contrib/unbound_munin_ vendored
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@ -1,559 +0,0 @@
#!/bin/sh
#
# plugin for munin to monitor usage of unbound servers.
# To install copy this to /usr/local/share/munin/plugins/unbound_munin_
# and use munin-node-configure (--suggest, --shell).
#
# (C) 2008 W.C.A. Wijngaards. BSD Licensed.
#
# To install; enable statistics and unbound-control in unbound.conf
# server: extended-statistics: yes
# statistics-cumulative: no
# statistics-interval: 0
# remote-control: control-enable: yes
# Run the command unbound-control-setup to generate the key files.
#
# Environment variables for this script
# statefile - where to put temporary statefile.
# unbound_conf - where the unbound.conf file is located.
# unbound_control - where to find unbound-control executable.
# spoof_warn - what level to warn about spoofing
# spoof_crit - what level to crit about spoofing
#
# You can set them in your munin/plugin-conf.d/plugins.conf file
# with:
# [unbound*]
# user root
# env.statefile /usr/local/var/munin/plugin-state/unbound-state
# env.unbound_conf /usr/local/etc/unbound/unbound.conf
# env.unbound_control /usr/local/sbin/unbound-control
# env.spoof_warn 1000
# env.spoof_crit 100000
#
# This plugin can create different graphs depending on what name
# you link it as (with ln -s) into the plugins directory
# You can link it multiple times.
# If you are only a casual user, the _hits and _by_type are most interesting,
# possibly followed by _by_rcode.
#
# unbound_munin_hits - base volume, cache hits, unwanted traffic
# unbound_munin_queue - to monitor the internal requestlist
# unbound_munin_memory - memory usage
# unbound_munin_by_type - incoming queries by type
# unbound_munin_by_class - incoming queries by class
# unbound_munin_by_opcode - incoming queries by opcode
# unbound_munin_by_rcode - answers by rcode, validation status
# unbound_munin_by_flags - incoming queries by flags
# unbound_munin_histogram - histogram of query resolving times
#
# Magic markers - optional - used by installation scripts and
# munin-config: (originally contrib family but munin-node-configure ignores it)
#
#%# family=auto
#%# capabilities=autoconf suggest
# POD documentation
: <<=cut
=head1 NAME
unbound_munin_ - Munin plugin to monitor the Unbound DNS resolver.
=head1 APPLICABLE SYSTEMS
System with unbound daemon.
=head1 CONFIGURATION
[unbound*]
user root
env.statefile /usr/local/var/munin/plugin-state/unbound-state
env.unbound_conf /usr/local/etc/unbound/unbound.conf
env.unbound_control /usr/local/sbin/unbound-control
env.spoof_warn 1000
env.spoof_crit 100000
Use the .env settings to override the defaults.
=head1 USAGE
Can be used to present different graphs. Use ln -s for that name in
the plugins directory to enable the graph.
unbound_munin_hits - base volume, cache hits, unwanted traffic
unbound_munin_queue - to monitor the internal requestlist
unbound_munin_memory - memory usage
unbound_munin_by_type - incoming queries by type
unbound_munin_by_class - incoming queries by class
unbound_munin_by_opcode - incoming queries by opcode
unbound_munin_by_rcode - answers by rcode, validation status
unbound_munin_by_flags - incoming queries by flags
unbound_munin_histogram - histogram of query resolving times
=head1 AUTHOR
Copyright 2008 W.C.A. Wijngaards
=head1 LICENSE
BSD
=cut
state=${statefile:-/usr/local/var/munin/plugin-state/unbound-state}
conf=${unbound_conf:-/usr/local/etc/unbound/unbound.conf}
ctrl=${unbound_control:-/usr/local/sbin/unbound-control}
warn=${spoof_warn:-1000}
crit=${spoof_crit:-100000}
lock=$state.lock
# number of seconds between polling attempts.
# makes the statefile hang around for at least this many seconds,
# so that multiple links of this script can share the results.
lee=55
# to keep things within 19 characters
ABBREV="-e s/total/t/ -e s/thread/t/ -e s/num/n/ -e s/query/q/ -e s/answer/a/ -e s/unwanted/u/ -e s/requestlist/ql/ -e s/type/t/ -e s/class/c/ -e s/opcode/o/ -e s/rcode/r/ -e s/edns/e/ -e s/mem/m/ -e s/cache/c/ -e s/mod/m/"
# get value from $1 into return variable $value
get_value ( ) {
value="`grep '^'$1'=' $state | sed -e 's/^.*=//'`"
if test "$value"x = ""x; then
value="0"
fi
}
# download the state from the unbound server.
get_state ( ) {
# obtain lock for fetching the state
# because there is a race condition in fetching and writing to file
# see if the lock is stale, if so, take it
if test -f $lock ; then
pid="`cat $lock 2>&1`"
kill -0 "$pid" >/dev/null 2>&1
if test $? -ne 0 -a "$pid" != $$ ; then
echo $$ >$lock
fi
fi
i=0
while test ! -f $lock || test "`cat $lock 2>&1`" != $$; do
while test -f $lock; do
# wait
i=`expr $i + 1`
if test $i -gt 1000; then
sleep 1;
fi
if test $i -gt 1500; then
echo "error locking $lock" "=" `cat $lock`
rm -f $lock
exit 1
fi
done
# try to get it
if echo $$ >$lock ; then : ; else break; fi
done
# do not refetch if the file exists and only LEE seconds old
if test -f $state; then
now=`date +%s`
get_value "time.now"
value="`echo $value | sed -e 's/\..*$//'`"
if test $now -lt `expr $value + $lee`; then
rm -f $lock
return
fi
fi
$ctrl -c $conf stats > $state
if test $? -ne 0; then
echo "error retrieving data from unbound server"
rm -f $lock
exit 1
fi
rm -f $lock
}
if test "$1" = "autoconf" ; then
if test ! -f $conf; then
echo no "($conf does not exist)"
exit 1
fi
if test ! -d `dirname $state`; then
echo no "(`dirname $state` directory does not exist)"
exit 1
fi
echo yes
exit 0
fi
if test "$1" = "suggest" ; then
echo "hits"
echo "queue"
echo "memory"
echo "by_type"
echo "by_class"
echo "by_opcode"
echo "by_rcode"
echo "by_flags"
echo "histogram"
exit 0
fi
# determine my type, by name
id=`echo $0 | sed -e 's/^.*unbound_munin_//'`
if test "$id"x = ""x; then
# some default to keep people sane.
id="hits"
fi
# if $1 exists in statefile, config is echoed with label $2
exist_config ( ) {
mn=`echo $1 | sed $ABBREV | tr . _`
if grep '^'$1'=' $state >/dev/null 2>&1; then
echo "$mn.label $2"
echo "$mn.min 0"
echo "$mn.type ABSOLUTE"
fi
}
# print label and min 0 for a name $1 in unbound format
p_config ( ) {
mn=`echo $1 | sed $ABBREV | tr . _`
echo $mn.label "$2"
echo $mn.min 0
echo $mn.type $3
}
if test "$1" = "config" ; then
if test ! -f $state; then
get_state
fi
case $id in
hits)
echo "graph_title Unbound DNS traffic and cache hits"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel queries / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
for x in `grep "^thread[0-9][0-9]*\.num\.queries=" $state |
sed -e 's/=.*//'`; do
exist_config $x "queries handled by `basename $x .num.queries`"
done
p_config "total.num.queries" "total queries from clients" "ABSOLUTE"
p_config "total.num.cachehits" "cache hits" "ABSOLUTE"
p_config "total.num.prefetch" "cache prefetch" "ABSOLUTE"
p_config "num.query.tcp" "TCP queries" "ABSOLUTE"
p_config "num.query.tcpout" "TCP out queries" "ABSOLUTE"
p_config "num.query.ipv6" "IPv6 queries" "ABSOLUTE"
p_config "unwanted.queries" "queries that failed acl" "ABSOLUTE"
p_config "unwanted.replies" "unwanted or unsolicited replies" "ABSOLUTE"
echo "u_replies.warning $warn"
echo "u_replies.critical $crit"
echo "graph_info DNS queries to the recursive resolver. The unwanted replies could be innocent duplicate packets, late replies, or spoof threats."
;;
queue)
echo "graph_title Unbound requestlist size"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel number of queries"
echo "graph_scale no"
echo "graph_category DNS"
p_config "total.requestlist.avg" "Average size of queue on insert" "GAUGE"
p_config "total.requestlist.max" "Max size of queue (in 5 min)" "GAUGE"
p_config "total.requestlist.overwritten" "Number of queries replaced by new ones" "GAUGE"
p_config "total.requestlist.exceeded" "Number of queries dropped due to lack of space" "GAUGE"
echo "graph_info The queries that did not hit the cache and need recursion service take up space in the requestlist. If there are too many queries, first queries get overwritten, and at last resort dropped."
;;
memory)
echo "graph_title Unbound memory usage"
echo "graph_args --base 1024 -l 0"
echo "graph_vlabel memory used in bytes"
echo "graph_category DNS"
p_config "mem.cache.rrset" "RRset cache memory" "GAUGE"
p_config "mem.cache.message" "Message cache memory" "GAUGE"
p_config "mem.mod.iterator" "Iterator module memory" "GAUGE"
p_config "mem.mod.validator" "Validator module and key cache memory" "GAUGE"
p_config "msg.cache.count" "msg cache count" "GAUGE"
p_config "rrset.cache.count" "rrset cache count" "GAUGE"
p_config "infra.cache.count" "infra cache count" "GAUGE"
p_config "key.cache.count" "key cache count" "GAUGE"
echo "graph_info The memory used by unbound."
;;
by_type)
echo "graph_title Unbound DNS queries by type"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel queries / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
for x in `grep "^num.query.type" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
tp=`echo $nm | sed -e s/num.query.type.//`
p_config "$nm" "$tp" "ABSOLUTE"
done
echo "graph_info queries by DNS RR type queried for"
;;
by_class)
echo "graph_title Unbound DNS queries by class"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel queries / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
for x in `grep "^num.query.class" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
tp=`echo $nm | sed -e s/num.query.class.//`
p_config "$nm" "$tp" "ABSOLUTE"
done
echo "graph_info queries by DNS RR class queried for."
;;
by_opcode)
echo "graph_title Unbound DNS queries by opcode"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel queries / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
for x in `grep "^num.query.opcode" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
tp=`echo $nm | sed -e s/num.query.opcode.//`
p_config "$nm" "$tp" "ABSOLUTE"
done
echo "graph_info queries by opcode in the query packet."
;;
by_rcode)
echo "graph_title Unbound DNS answers by return code"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel answer packets / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
for x in `grep "^num.answer.rcode" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
tp=`echo $nm | sed -e s/num.answer.rcode.//`
p_config "$nm" "$tp" "ABSOLUTE"
done
p_config "num.answer.secure" "answer secure" "ABSOLUTE"
p_config "num.answer.bogus" "answer bogus" "ABSOLUTE"
p_config "num.rrset.bogus" "num rrsets marked bogus" "ABSOLUTE"
echo "graph_info answers sorted by return value. rrsets bogus is the number of rrsets marked bogus per \${graph_period} by the validator"
;;
by_flags)
echo "graph_title Unbound DNS incoming queries by flags"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel queries / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
p_config "num.query.flags.QR" "QR (query reply) flag" "ABSOLUTE"
p_config "num.query.flags.AA" "AA (auth answer) flag" "ABSOLUTE"
p_config "num.query.flags.TC" "TC (truncated) flag" "ABSOLUTE"
p_config "num.query.flags.RD" "RD (recursion desired) flag" "ABSOLUTE"
p_config "num.query.flags.RA" "RA (rec avail) flag" "ABSOLUTE"
p_config "num.query.flags.Z" "Z (zero) flag" "ABSOLUTE"
p_config "num.query.flags.AD" "AD (auth data) flag" "ABSOLUTE"
p_config "num.query.flags.CD" "CD (check disabled) flag" "ABSOLUTE"
p_config "num.query.edns.present" "EDNS OPT present" "ABSOLUTE"
p_config "num.query.edns.DO" "DO (DNSSEC OK) flag" "ABSOLUTE"
echo "graph_info This graphs plots the flags inside incoming queries. For example, if QR, AA, TC, RA, Z flags are set, the query can be rejected. RD, AD, CD and DO are legitimately set by some software."
;;
histogram)
echo "graph_title Unbound DNS histogram of reply time"
echo "graph_args --base 1000 -l 0"
echo "graph_vlabel queries / \${graph_period}"
echo "graph_scale no"
echo "graph_category DNS"
echo hcache.label "cache hits"
echo hcache.min 0
echo hcache.type ABSOLUTE
echo hcache.draw AREA
echo hcache.colour 999999
echo h64ms.label "0 msec - 66 msec"
echo h64ms.min 0
echo h64ms.type ABSOLUTE
echo h64ms.draw STACK
echo h64ms.colour 0000FF
echo h128ms.label "66 msec - 131 msec"
echo h128ms.min 0
echo h128ms.type ABSOLUTE
echo h128ms.colour 1F00DF
echo h128ms.draw STACK
echo h256ms.label "131 msec - 262 msec"
echo h256ms.min 0
echo h256ms.type ABSOLUTE
echo h256ms.draw STACK
echo h256ms.colour 3F00BF
echo h512ms.label "262 msec - 524 msec"
echo h512ms.min 0
echo h512ms.type ABSOLUTE
echo h512ms.draw STACK
echo h512ms.colour 5F009F
echo h1s.label "524 msec - 1 sec"
echo h1s.min 0
echo h1s.type ABSOLUTE
echo h1s.draw STACK
echo h1s.colour 7F007F
echo h2s.label "1 sec - 2 sec"
echo h2s.min 0
echo h2s.type ABSOLUTE
echo h2s.draw STACK
echo h2s.colour 9F005F
echo h4s.label "2 sec - 4 sec"
echo h4s.min 0
echo h4s.type ABSOLUTE
echo h4s.draw STACK
echo h4s.colour BF003F
echo h8s.label "4 sec - 8 sec"
echo h8s.min 0
echo h8s.type ABSOLUTE
echo h8s.draw STACK
echo h8s.colour DF001F
echo h16s.label "8 sec - ..."
echo h16s.min 0
echo h16s.type ABSOLUTE
echo h16s.draw STACK
echo h16s.colour FF0000
echo "graph_info Histogram of the reply times for queries."
;;
esac
exit 0
fi
# do the stats itself
get_state
# get the time elapsed
get_value "time.elapsed"
if test $value = 0 || test $value = "0.000000"; then
echo "error: time elapsed 0 or could not retrieve data"
exit 1
fi
elapsed="$value"
# print value for $1
print_value ( ) {
mn=`echo $1 | sed $ABBREV | tr . _`
get_value $1
echo "$mn.value" $value
}
# print value if line already found in $2
print_value_line ( ) {
mn=`echo $1 | sed $ABBREV | tr . _`
value="`echo $2 | sed -e 's/^.*=//'`"
echo "$mn.value" $value
}
case $id in
hits)
for x in `grep "^thread[0-9][0-9]*\.num\.queries=" $state |
sed -e 's/=.*//'` total.num.queries \
total.num.cachehits total.num.prefetch num.query.tcp \
num.query.tcpout num.query.ipv6 unwanted.queries \
unwanted.replies; do
if grep "^"$x"=" $state >/dev/null 2>&1; then
print_value $x
fi
done
;;
queue)
for x in total.requestlist.avg total.requestlist.max \
total.requestlist.overwritten total.requestlist.exceeded; do
print_value $x
done
;;
memory)
for x in mem.cache.rrset mem.cache.message mem.mod.iterator \
mem.mod.validator msg.cache.count rrset.cache.count \
infra.cache.count key.cache.count; do
print_value $x
done
;;
by_type)
for x in `grep "^num.query.type" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
print_value_line $nm $x
done
;;
by_class)
for x in `grep "^num.query.class" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
print_value_line $nm $x
done
;;
by_opcode)
for x in `grep "^num.query.opcode" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
print_value_line $nm $x
done
;;
by_rcode)
for x in `grep "^num.answer.rcode" $state`; do
nm=`echo $x | sed -e 's/=.*$//'`
print_value_line $nm $x
done
print_value "num.answer.secure"
print_value "num.answer.bogus"
print_value "num.rrset.bogus"
;;
by_flags)
for x in num.query.flags.QR num.query.flags.AA num.query.flags.TC num.query.flags.RD num.query.flags.RA num.query.flags.Z num.query.flags.AD num.query.flags.CD num.query.edns.present num.query.edns.DO; do
print_value $x
done
;;
histogram)
get_value total.num.cachehits
echo hcache.value $value
r=0
for x in histogram.000000.000000.to.000000.000001 \
histogram.000000.000001.to.000000.000002 \
histogram.000000.000002.to.000000.000004 \
histogram.000000.000004.to.000000.000008 \
histogram.000000.000008.to.000000.000016 \
histogram.000000.000016.to.000000.000032 \
histogram.000000.000032.to.000000.000064 \
histogram.000000.000064.to.000000.000128 \
histogram.000000.000128.to.000000.000256 \
histogram.000000.000256.to.000000.000512 \
histogram.000000.000512.to.000000.001024 \
histogram.000000.001024.to.000000.002048 \
histogram.000000.002048.to.000000.004096 \
histogram.000000.004096.to.000000.008192 \
histogram.000000.008192.to.000000.016384 \
histogram.000000.016384.to.000000.032768 \
histogram.000000.032768.to.000000.065536; do
get_value $x
r=`expr $r + $value`
done
echo h64ms.value $r
get_value histogram.000000.065536.to.000000.131072
echo h128ms.value $value
get_value histogram.000000.131072.to.000000.262144
echo h256ms.value $value
get_value histogram.000000.262144.to.000000.524288
echo h512ms.value $value
get_value histogram.000000.524288.to.000001.000000
echo h1s.value $value
get_value histogram.000001.000000.to.000002.000000
echo h2s.value $value
get_value histogram.000002.000000.to.000004.000000
echo h4s.value $value
get_value histogram.000004.000000.to.000008.000000
echo h8s.value $value
r=0
for x in histogram.000008.000000.to.000016.000000 \
histogram.000016.000000.to.000032.000000 \
histogram.000032.000000.to.000064.000000 \
histogram.000064.000000.to.000128.000000 \
histogram.000128.000000.to.000256.000000 \
histogram.000256.000000.to.000512.000000 \
histogram.000512.000000.to.001024.000000 \
histogram.001024.000000.to.002048.000000 \
histogram.002048.000000.to.004096.000000 \
histogram.004096.000000.to.008192.000000 \
histogram.008192.000000.to.016384.000000 \
histogram.016384.000000.to.032768.000000 \
histogram.032768.000000.to.065536.000000 \
histogram.065536.000000.to.131072.000000 \
histogram.131072.000000.to.262144.000000 \
histogram.262144.000000.to.524288.000000; do
get_value $x
r=`expr $r + $value`
done
echo h16s.value $r
;;
esac

BIN
external/unbound/contrib/unbound_smf22.tar.gz vendored
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158
external/unbound/contrib/update-anchor.sh vendored
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@ -1,158 +0,0 @@
#!/bin/sh
# update-anchor.sh, update a trust anchor.
# Copyright 2008, W.C.A. Wijngaards
# This file is BSD licensed, see doc/LICENSE.
# which validating lookup to use.
ubhost=unbound-host
usage ( )
{
echo "usage: update-anchor [-r hs] [-b] <zone name> <trust anchor file>"
echo " performs an update of trust anchor file"
echo " the trust anchor file is overwritten with the latest keys"
echo " the trust anchor file should contain only keys for one zone"
echo " -b causes keyfile to be made in bind format."
echo " without -b the file is made in unbound format."
echo " "
echo "alternate:"
echo " update-anchor [-r hints] [-b] -d directory"
echo " update all <zone>.anchor files in the directory."
echo " "
echo " name the files br.anchor se.anchor ..., and include them in"
echo " the validating resolver config file."
echo " put keys for the root in a file with the name root.anchor."
echo ""
echo "-r root.hints use different root hints. Strict option order."
echo ""
echo "Exit code 0 means anchors updated, 1 no changes, others are errors."
exit 2
}
if test $# -eq 0; then
usage
fi
bindformat="no"
filearg='-f'
roothints=""
if test X"$1" = "X-r"; then
shift
roothints="$1"
shift
fi
if test X"$1" = "X-b"; then
shift
bindformat="yes"
filearg='-F'
fi
if test $# -ne 2; then
echo "arguments wrong."
usage
fi
do_update ( ) {
# arguments: <zonename> <keyfile>
zonename="$1"
keyfile="$2"
tmpfile="/tmp/update-anchor.$$"
tmp2=$tmpfile.2
tmp3=$tmpfile.3
rh=""
if test -n "$roothints"; then
echo "server: root-hints: '$roothints'" > $tmp3
rh="-C $tmp3"
fi
$ubhost -v $rh $filearg "$keyfile" -t DNSKEY "$zonename" >$tmpfile
if test $? -ne 0; then
rm -f $tmpfile
echo "Error: Could not update zone $zonename anchor file $keyfile"
echo "Cause: $ubhost lookup failed"
echo " (Is the domain decommissioned? Is connectivity lost?)"
return 2
fi
# has the lookup been DNSSEC validated?
if grep '(secure)$' $tmpfile >/dev/null 2>&1; then
:
else
rm -f $tmpfile
echo "Error: Could not update zone $zonename anchor file $keyfile"
echo "Cause: result of lookup was not secure"
echo " (keys too far out of date? domain changed ownership? need root hints?)"
return 3
fi
if test $bindformat = "yes"; then
# are there any KSK keys on board?
echo 'trusted-keys {' > "$tmp2"
if grep ' has DNSKEY record 257' $tmpfile >/dev/null 2>&1; then
# store KSK keys in anchor file
grep '(secure)$' $tmpfile | \
grep ' has DNSKEY record 257' | \
sed -e 's/ (secure)$/";/' | \
sed -e 's/ has DNSKEY record \([0-9]*\) \([0-9]*\) \([0-9]*\) /. \1 \2 \3 "/' | \
sed -e 's/^\.\././' | sort >> "$tmp2"
else
# store all keys in the anchor file
grep '(secure)$' $tmpfile | \
sed -e 's/ (secure)$/";/' | \
sed -e 's/ has DNSKEY record \([0-9]*\) \([0-9]*\) \([0-9]*\) /. \1 \2 \3 "/' | \
sed -e 's/^\.\././' | sort >> "$tmp2"
fi
echo '};' >> "$tmp2"
else #not bindformat
# are there any KSK keys on board?
if grep ' has DNSKEY record 257' $tmpfile >/dev/null 2>&1; then
# store KSK keys in anchor file
grep '(secure)$' $tmpfile | \
grep ' has DNSKEY record 257' | \
sed -e 's/ (secure)$//' | \
sed -e 's/ has DNSKEY record /. IN DNSKEY /' | \
sed -e 's/^\.\././' | sort > "$tmp2"
else
# store all keys in the anchor file
grep '(secure)$' $tmpfile | \
sed -e 's/ (secure)$//' | \
sed -e 's/ has DNSKEY record /. IN DNSKEY /' | \
sed -e 's/^\.\././' | sort > "$tmp2"
fi
fi # endif-bindformat
# copy over if changed
diff $tmp2 $keyfile >/dev/null 2>&1
if test $? -eq 1; then # 0 means no change, 2 means trouble.
cat $tmp2 > $keyfile
no_updated=0
echo "$zonename key file $keyfile updated."
else
echo "$zonename key file $keyfile unchanged."
fi
rm -f $tmpfile $tmp2 $tmp3
}
no_updated=1
if test X"$1" = "X-d"; then
tdir="$2"
echo "start updating in $2"
for x in $tdir/*.anchor; do
if test `basename "$x"` = "root.anchor"; then
zname="."
else
zname=`basename "$x" .anchor`
fi
do_update "$zname" "$x"
done
echo "done updating in $2"
else
# regular invocation
if test X"$1" = "X."; then
zname="$1"
else
# strip trailing dot from zone name
zname="`echo $1 | sed -e 's/\.$//'`"
fi
kfile="$2"
do_update $zname $kfile
fi
exit $no_updated

117
external/unbound/contrib/validation-reporter.sh vendored
View File

@ -1,117 +0,0 @@
#!/bin/sh
# validation reporter - reports validation failures to a collection server.
# Copyright NLnet Labs, 2010
# BSD license.
###
# Here is the configuration for the validation reporter
# it greps the failure lines out of the log and sends them to a server.
# The pidfile for the reporter daemon.
pidfile="/var/run/validation-reporter.pid"
# The logfile to watch for logged validation failures.
logfile="/var/log/unbound.log"
# how to notify the upstream
# nc is netcat, it sends tcp to given host port. It makes a tcp connection
# and writes one log-line to it (grepped from the logfile).
# the notify command can be: "nc the.server.name.org 1234"
# the listening daemon could be: nc -lk 127.0.0.1 1234 >> outputfile &
notify_cmd="nc localhost 1234"
###
# Below this line is the code for the validation reporter,
# first the daemon itself, then the controller for the daemon.
reporter_daemon() {
trap "rm -f \"$pidfile\"" EXIT
tail -F $logfile | grep --line-buffered "unbound.*info: validation failure" | \
while read x; do
echo "$x" | $notify_cmd
done
}
###
# controller for daemon.
start_daemon() {
echo "starting reporter"
nohup $0 rundaemon </dev/null >/dev/null 2>&1 &
echo $! > "$pidfile"
}
kill_daemon() {
echo "stopping reporter"
if test -s "$pidfile"; then
kill `cat "$pidfile"`
# check it is really dead
if kill -0 `cat "$pidfile"` >/dev/null 2>&1; then
sleep 1
while kill -0 `cat "$pidfile"` >/dev/null 2>&1; do
kill `cat "$pidfile"` >/dev/null 2>&1
echo "waiting for reporter to stop"
sleep 1
done
fi
fi
}
get_status_daemon() {
if test -s "$pidfile"; then
if kill -0 `cat "$pidfile"`; then
return 0;
fi
fi
return 1;
}
restart_daemon() {
kill_daemon
start_daemon
}
condrestart_daemon() {
if get_status_daemon; then
echo "reporter ("`cat "$pidfile"`") is running"
exit 0
fi
start_daemon
exit 0
}
status_daemon() {
if get_status_daemon; then
echo "reporter ("`cat "$pidfile"`") is running"
exit 0
fi
echo "reporter is not running"
exit 1
}
case "$1" in
rundaemon)
reporter_daemon
;;
start)
start_daemon
;;
stop)
kill_daemon
;;
restart)
restart_daemon
;;
condrestart)
condrestart_daemon
;;
status)
status_daemon
;;
*)
echo "Usage: $0 {start|stop|restart|condrestart|status}"
exit 2
;;
esac
exit $?

153
external/unbound/contrib/warmup.cmd vendored
View File

@ -1,153 +0,0 @@
@echo off
rem --------------------------------------------------------------
rem -- Warm up DNS cache script by your own MRU domains or from
rem -- file when it specified as script argument.
rem --
rem -- Version 1.1
rem -- By Yuri Voinov (c) 2014
rem --------------------------------------------------------------
rem DNS host address
set address="127.0.0.1"
rem Check dig installed
for /f "delims=" %%a in ('where dig') do @set dig=%%a
if /I "%dig%"=="" echo Dig not found. If installed, add path to PATH environment variable. & exit 1
echo Dig found: %dig%
set arg=%1%
if defined %arg% (goto builtin) else (goto from_file)
:builtin
echo Warming up cache by MRU domains...
for %%a in (
2gis.ru
admir.kz
adobe.com
agent.mail.ru
aimp.ru
akamai.com
akamai.net
almaty.tele2.kz
aol.com
apple.com
arin.com
artlebedev.ru
auto.mail.ru
beeline.kz
bing.com
blogspot.com
comodo.com
dnscrypt.org
drive.google.com
drive.mail.ru
facebook.com
farmanager.com
fb.com
firefox.com
forum.farmanager.com
gazeta.ru
getsharex.com
gismeteo.ru
google.com
google.kz
google.ru
googlevideo.com
goto.kz
iana.org
icq.com
imap.mail.ru
instagram.com
intel.com
irr.kz
java.com
kaspersky.com
kaspersky.ru
kcell.kz
krisha.kz
lady.mail.ru
lenta.ru
libreoffice.org
linkedin.com
livejournal.com
mail.google.com
mail.ru
microsoft.com
mozilla.org
mra.mail.ru
munin-monitoring.org
my.mail.ru
news.bbcimg.co.uk
news.mail.ru
newsimg.bbc.net.uk
nvidia.com
odnoklassniki.ru
ok.ru
opencsw.org
opendns.com
opendns.org
opennet.ru
opera.com
oracle.com
peerbet.ru
piriform.com
plugring.farmanager.com
privoxy.org
qip.ru
raidcall.com
rambler.ru
reddit.com
ru.wikipedia.org
shallalist.de
skype.com
snob.ru
squid-cache.org
squidclamav.darold.net
squidguard.org
ssl.comodo.com
ssl.verisign.com
symantec.com
symantecliveupdate.com
tele2.kz
tengrinews.kz
thunderbird.com
torproject.org
torstatus.blutmagie.de
translate.google.com
unbound.net
verisign.com
vk.com
vk.me
vk.ru
vkontakte.com
vkontakte.ru
vlc.org
watsapp.net
weather.mail.ru
windowsupdate.com
www.baidu.com
www.bbc.co.uk
www.internic.net
www.opennet.ru
www.topgear.com
ya.ru
yahoo.com
yandex.com
yandex.ru
youtube.com
ytimg.com
) do "%dig%" %%a @%address% 1>nul 2>nul
goto end
:from_file
echo Warming up cache from %1% file...
%dig% -f %arg% @%address% 1>nul 2>nul
:end
echo Saving cache...
if exist unbound_cache.cmd unbound_cache.cmd -s
echo Done.
exit 0

150
external/unbound/contrib/warmup.sh vendored
View File

@ -1,150 +0,0 @@
#!/bin/sh
# --------------------------------------------------------------
# -- Warm up DNS cache script by your own MRU domains or from
# -- file when it specified as script argument.
# --
# -- Version 1.1
# -- By Yuri Voinov (c) 2014
# --------------------------------------------------------------
# Default DNS host address
address="127.0.0.1"
cat=`which cat`
dig=`which dig`
if [ -z "$1" ]; then
echo "Warming up cache by MRU domains..."
$dig -f - @$address >/dev/null 2>&1 <<EOT
2gis.ru
admir.kz
adobe.com
agent.mail.ru
aimp.ru
akamai.com
akamai.net
almaty.tele2.kz
aol.com
apple.com
arin.com
artlebedev.ru
auto.mail.ru
beeline.kz
bing.com
blogspot.com
clamav.net
comodo.com
dnscrypt.org
drive.google.com
drive.mail.ru
facebook.com
farmanager.com
fb.com
firefox.com
forum.farmanager.com
gazeta.ru
getsharex.com
gismeteo.ru
google.com
google.kz
google.ru
googlevideo.com
goto.kz
iana.org
icq.com
imap.mail.ru
instagram.com
instagram.com
intel.com
irr.kz
java.com
kaspersky.com
kaspersky.ru
kcell.kz
krisha.kz
lady.mail.ru
lenta.ru
libreoffice.org
linkedin.com
livejournal.com
mail.google.com
mail.ru
microsoft.com
mozilla.org
mra.mail.ru
munin-monitoring.org
my.mail.ru
news.bbcimg.co.uk
news.mail.ru
newsimg.bbc.net.uk
nvidia.com
odnoklassniki.ru
ok.ru
opencsw.org
opendns.com
opendns.org
opennet.ru
opera.com
oracle.com
peerbet.ru
piriform.com
plugring.farmanager.com
privoxy.org
qip.ru
raidcall.com
rambler.ru
reddit.com
ru.wikipedia.org
shallalist.de
skype.com
snob.ru
squid-cache.org
squidclamav.darold.net
squidguard.org
ssl.comodo.com
ssl.verisign.com
symantec.com
symantecliveupdate.com
tele2.kz
tengrinews.kz
thunderbird.com
torproject.org
torstatus.blutmagie.de
translate.google.com
unbound.net
verisign.com
vk.com
vk.me
vk.ru
vkontakte.com
vkontakte.ru
vlc.org
watsapp.net
weather.mail.ru
windowsupdate.com
www.baidu.com
www.bbc.co.uk
www.internic.net
www.opennet.ru
www.topgear.com
ya.ru
yahoo.com
yandex.com
yandex.ru
youtube.com
ytimg.com
EOT
else
echo "Warming up cache from $1 file..."
$cat $1 | $dig -f - @$address >/dev/null 2>&1
fi
echo "Done."
echo "Saving cache..."
script=`which unbound_cache.sh`
[ -f "$script" ] && $script -s
echo "Done."
exit 0

487
external/unbound/daemon/acl_list.c vendored
View File

@ -1,487 +0,0 @@
/*
* daemon/acl_list.h - client access control storage for the server.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file helps the server keep out queries from outside sources, that
* should not be answered.
*/
#include "config.h"
#include "daemon/acl_list.h"
#include "util/regional.h"
#include "util/log.h"
#include "util/config_file.h"
#include "util/net_help.h"
#include "services/localzone.h"
#include "sldns/str2wire.h"
struct acl_list*
acl_list_create(void)
{
struct acl_list* acl = (struct acl_list*)calloc(1,
sizeof(struct acl_list));
if(!acl)
return NULL;
acl->region = regional_create();
if(!acl->region) {
acl_list_delete(acl);
return NULL;
}
return acl;
}
void
acl_list_delete(struct acl_list* acl)
{
if(!acl)
return;
regional_destroy(acl->region);
free(acl);
}
/** insert new address into acl_list structure */
static struct acl_addr*
acl_list_insert(struct acl_list* acl, struct sockaddr_storage* addr,
socklen_t addrlen, int net, enum acl_access control,
int complain_duplicates)
{
struct acl_addr* node = regional_alloc_zero(acl->region,
sizeof(struct acl_addr));
if(!node)
return NULL;
node->control = control;
if(!addr_tree_insert(&acl->tree, &node->node, addr, addrlen, net)) {
if(complain_duplicates)
verbose(VERB_QUERY, "duplicate acl address ignored.");
}
return node;
}
/** apply acl_list string */
static int
acl_list_str_cfg(struct acl_list* acl, const char* str, const char* s2,
int complain_duplicates)
{
struct sockaddr_storage addr;
int net;
socklen_t addrlen;
enum acl_access control;
if(strcmp(s2, "allow") == 0)
control = acl_allow;
else if(strcmp(s2, "deny") == 0)
control = acl_deny;
else if(strcmp(s2, "refuse") == 0)
control = acl_refuse;
else if(strcmp(s2, "deny_non_local") == 0)
control = acl_deny_non_local;
else if(strcmp(s2, "refuse_non_local") == 0)
control = acl_refuse_non_local;
else if(strcmp(s2, "allow_snoop") == 0)
control = acl_allow_snoop;
else {
log_err("access control type %s unknown", str);
return 0;
}
if(!netblockstrtoaddr(str, UNBOUND_DNS_PORT, &addr, &addrlen, &net)) {
log_err("cannot parse access control: %s %s", str, s2);
return 0;
}
if(!acl_list_insert(acl, &addr, addrlen, net, control,
complain_duplicates)) {
log_err("out of memory");
return 0;
}
return 1;
}
/** find or create node (NULL on parse or error) */
static struct acl_addr*
acl_find_or_create(struct acl_list* acl, const char* str)
{
struct acl_addr* node;
struct sockaddr_storage addr;
int net;
socklen_t addrlen;
if(!netblockstrtoaddr(str, UNBOUND_DNS_PORT, &addr, &addrlen, &net)) {
log_err("cannot parse netblock: %s", str);
return NULL;
}
/* find or create node */
if(!(node=(struct acl_addr*)addr_tree_find(&acl->tree, &addr,
addrlen, net))) {
/* create node, type 'allow' since otherwise tags are
* pointless, can override with specific access-control: cfg */
if(!(node=(struct acl_addr*)acl_list_insert(acl, &addr,
addrlen, net, acl_allow, 1))) {
log_err("out of memory");
return NULL;
}
}
return node;
}
/** apply acl_tag string */
static int
acl_list_tags_cfg(struct acl_list* acl, const char* str, uint8_t* bitmap,
size_t bitmaplen)
{
struct acl_addr* node;
if(!(node=acl_find_or_create(acl, str)))
return 0;
node->taglen = bitmaplen;
node->taglist = regional_alloc_init(acl->region, bitmap, bitmaplen);
if(!node->taglist) {
log_err("out of memory");
return 0;
}
return 1;
}
/** apply acl_view string */
static int
acl_list_view_cfg(struct acl_list* acl, const char* str, const char* str2,
struct views* vs)
{
struct acl_addr* node;
if(!(node=acl_find_or_create(acl, str)))
return 0;
node->view = views_find_view(vs, str2, 0 /* get read lock*/);
if(!node->view) {
log_err("no view with name: %s", str2);
return 0;
}
lock_rw_unlock(&node->view->lock);
return 1;
}
/** apply acl_tag_action string */
static int
acl_list_tag_action_cfg(struct acl_list* acl, struct config_file* cfg,
const char* str, const char* tag, const char* action)
{
struct acl_addr* node;
int tagid;
enum localzone_type t;
if(!(node=acl_find_or_create(acl, str)))
return 0;
/* allocate array if not yet */
if(!node->tag_actions) {
node->tag_actions = (uint8_t*)regional_alloc_zero(acl->region,
sizeof(*node->tag_actions)*cfg->num_tags);
if(!node->tag_actions) {
log_err("out of memory");
return 0;
}
node->tag_actions_size = (size_t)cfg->num_tags;
}
/* parse tag */
if((tagid=find_tag_id(cfg, tag)) == -1) {
log_err("cannot parse tag (define-tag it): %s %s", str, tag);
return 0;
}
if((size_t)tagid >= node->tag_actions_size) {
log_err("tagid too large for array %s %s", str, tag);
return 0;
}
if(!local_zone_str2type(action, &t)) {
log_err("cannot parse access control action type: %s %s %s",
str, tag, action);
return 0;
}
node->tag_actions[tagid] = (uint8_t)t;
return 1;
}
/** check wire data parse */
static int
check_data(const char* data, const struct config_strlist* head)
{
char buf[65536];
uint8_t rr[LDNS_RR_BUF_SIZE];
size_t len = sizeof(rr);
int res;
/* '.' is sufficient for validation, and it makes the call to
* sldns_wirerr_get_type() simpler below. */
snprintf(buf, sizeof(buf), "%s %s", ".", data);
res = sldns_str2wire_rr_buf(buf, rr, &len, NULL, 3600, NULL, 0,
NULL, 0);
/* Reject it if we would end up having CNAME and other data (including
* another CNAME) for the same tag. */
if(res == 0 && head) {
const char* err_data = NULL;
if(sldns_wirerr_get_type(rr, len, 1) == LDNS_RR_TYPE_CNAME) {
/* adding CNAME while other data already exists. */
err_data = data;
} else {
snprintf(buf, sizeof(buf), "%s %s", ".", head->str);
len = sizeof(rr);
res = sldns_str2wire_rr_buf(buf, rr, &len, NULL, 3600,
NULL, 0, NULL, 0);
if(res != 0) {
/* This should be impossible here as head->str
* has been validated, but we check it just in
* case. */
return 0;
}
if(sldns_wirerr_get_type(rr, len, 1) ==
LDNS_RR_TYPE_CNAME) /* already have CNAME */
err_data = head->str;
}
if(err_data) {
log_err("redirect tag data '%s' must not coexist with "
"other data.", err_data);
return 0;
}
}
if(res == 0)
return 1;
log_err("rr data [char %d] parse error %s",
(int)LDNS_WIREPARSE_OFFSET(res)-13,
sldns_get_errorstr_parse(res));
return 0;
}
/** apply acl_tag_data string */
static int
acl_list_tag_data_cfg(struct acl_list* acl, struct config_file* cfg,
const char* str, const char* tag, const char* data)
{
struct acl_addr* node;
int tagid;
char* dupdata;
if(!(node=acl_find_or_create(acl, str)))
return 0;
/* allocate array if not yet */
if(!node->tag_datas) {
node->tag_datas = (struct config_strlist**)regional_alloc_zero(
acl->region, sizeof(*node->tag_datas)*cfg->num_tags);
if(!node->tag_datas) {
log_err("out of memory");
return 0;
}
node->tag_datas_size = (size_t)cfg->num_tags;
}
/* parse tag */
if((tagid=find_tag_id(cfg, tag)) == -1) {
log_err("cannot parse tag (define-tag it): %s %s", str, tag);
return 0;
}
if((size_t)tagid >= node->tag_datas_size) {
log_err("tagid too large for array %s %s", str, tag);
return 0;
}
/* check data? */
if(!check_data(data, node->tag_datas[tagid])) {
log_err("cannot parse access-control-tag data: %s %s '%s'",
str, tag, data);
return 0;
}
dupdata = regional_strdup(acl->region, data);
if(!dupdata) {
log_err("out of memory");
return 0;
}
if(!cfg_region_strlist_insert(acl->region,
&(node->tag_datas[tagid]), dupdata)) {
log_err("out of memory");
return 0;
}
return 1;
}
/** read acl_list config */
static int
read_acl_list(struct acl_list* acl, struct config_file* cfg)
{
struct config_str2list* p;
for(p = cfg->acls; p; p = p->next) {
log_assert(p->str && p->str2);
if(!acl_list_str_cfg(acl, p->str, p->str2, 1))
return 0;
}
return 1;
}
/** read acl tags config */
static int
read_acl_tags(struct acl_list* acl, struct config_file* cfg)
{
struct config_strbytelist* np, *p = cfg->acl_tags;
cfg->acl_tags = NULL;
while(p) {
log_assert(p->str && p->str2);
if(!acl_list_tags_cfg(acl, p->str, p->str2, p->str2len)) {
config_del_strbytelist(p);
return 0;
}
/* free the items as we go to free up memory */
np = p->next;
free(p->str);
free(p->str2);
free(p);
p = np;
}
return 1;
}
/** read acl view config */
static int
read_acl_view(struct acl_list* acl, struct config_file* cfg, struct views* v)
{
struct config_str2list* np, *p = cfg->acl_view;
cfg->acl_view = NULL;
while(p) {
log_assert(p->str && p->str2);
if(!acl_list_view_cfg(acl, p->str, p->str2, v)) {
return 0;
}
/* free the items as we go to free up memory */
np = p->next;
free(p->str);
free(p->str2);
free(p);
p = np;
}
return 1;
}
/** read acl tag actions config */
static int
read_acl_tag_actions(struct acl_list* acl, struct config_file* cfg)
{
struct config_str3list* p, *np;
p = cfg->acl_tag_actions;
cfg->acl_tag_actions = NULL;
while(p) {
log_assert(p->str && p->str2 && p->str3);
if(!acl_list_tag_action_cfg(acl, cfg, p->str, p->str2,
p->str3)) {
config_deltrplstrlist(p);
return 0;
}
/* free the items as we go to free up memory */
np = p->next;
free(p->str);
free(p->str2);
free(p->str3);
free(p);
p = np;
}
return 1;
}
/** read acl tag datas config */
static int
read_acl_tag_datas(struct acl_list* acl, struct config_file* cfg)
{
struct config_str3list* p, *np;
p = cfg->acl_tag_datas;
cfg->acl_tag_datas = NULL;
while(p) {
log_assert(p->str && p->str2 && p->str3);
if(!acl_list_tag_data_cfg(acl, cfg, p->str, p->str2, p->str3)) {
config_deltrplstrlist(p);
return 0;
}
/* free the items as we go to free up memory */
np = p->next;
free(p->str);
free(p->str2);
free(p->str3);
free(p);
p = np;
}
return 1;
}
int
acl_list_apply_cfg(struct acl_list* acl, struct config_file* cfg,
struct views* v)
{
regional_free_all(acl->region);
addr_tree_init(&acl->tree);
if(!read_acl_list(acl, cfg))
return 0;
if(!read_acl_view(acl, cfg, v))
return 0;
if(!read_acl_tags(acl, cfg))
return 0;
if(!read_acl_tag_actions(acl, cfg))
return 0;
if(!read_acl_tag_datas(acl, cfg))
return 0;
/* insert defaults, with '0' to ignore them if they are duplicates */
if(!acl_list_str_cfg(acl, "0.0.0.0/0", "refuse", 0))
return 0;
if(!acl_list_str_cfg(acl, "127.0.0.0/8", "allow", 0))
return 0;
if(cfg->do_ip6) {
if(!acl_list_str_cfg(acl, "::0/0", "refuse", 0))
return 0;
if(!acl_list_str_cfg(acl, "::1", "allow", 0))
return 0;
if(!acl_list_str_cfg(acl, "::ffff:127.0.0.1", "allow", 0))
return 0;
}
addr_tree_init_parents(&acl->tree);
return 1;
}
enum acl_access
acl_get_control(struct acl_addr* acl)
{
if(acl) return acl->control;
return acl_deny;
}
struct acl_addr*
acl_addr_lookup(struct acl_list* acl, struct sockaddr_storage* addr,
socklen_t addrlen)
{
return (struct acl_addr*)addr_tree_lookup(&acl->tree,
addr, addrlen);
}
size_t
acl_list_get_mem(struct acl_list* acl)
{
if(!acl) return 0;
return sizeof(*acl) + regional_get_mem(acl->region);
}

155
external/unbound/daemon/acl_list.h vendored
View File

@ -1,155 +0,0 @@
/*
* daemon/acl_list.h - client access control storage for the server.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file keeps track of the list of clients that are allowed to
* access the server.
*/
#ifndef DAEMON_ACL_LIST_H
#define DAEMON_ACL_LIST_H
#include "util/storage/dnstree.h"
#include "services/view.h"
struct config_file;
struct regional;
/**
* Enumeration of access control options for an address range.
* Allow or deny access.
*/
enum acl_access {
/** disallow any access whatsoever, drop it */
acl_deny = 0,
/** disallow access, send a polite 'REFUSED' reply */
acl_refuse,
/** disallow any access to zones that aren't local, drop it */
acl_deny_non_local,
/** disallow access to zones that aren't local, 'REFUSED' reply */
acl_refuse_non_local,
/** allow full access for recursion (+RD) queries */
acl_allow,
/** allow full access for all queries, recursion and cache snooping */
acl_allow_snoop
};
/**
* Access control storage structure
*/
struct acl_list {
/** regional for allocation */
struct regional* region;
/**
* Tree of the addresses that are allowed/blocked.
* contents of type acl_addr.
*/
rbtree_type tree;
};
/**
*
* An address span with access control information
*/
struct acl_addr {
/** node in address tree */
struct addr_tree_node node;
/** access control on this netblock */
enum acl_access control;
/** tag bitlist */
uint8_t* taglist;
/** length of the taglist (in bytes) */
size_t taglen;
/** array per tagnumber of localzonetype(in one byte). NULL if none. */
uint8_t* tag_actions;
/** size of the tag_actions_array */
size_t tag_actions_size;
/** array per tagnumber, with per tag a list of rdata strings.
* NULL if none. strings are like 'A 127.0.0.1' 'AAAA ::1' */
struct config_strlist** tag_datas;
/** size of the tag_datas array */
size_t tag_datas_size;
/* view element, NULL if none */
struct view* view;
};
/**
* Create acl structure
* @return new structure or NULL on error.
*/
struct acl_list* acl_list_create(void);
/**
* Delete acl structure.
* @param acl: to delete.
*/
void acl_list_delete(struct acl_list* acl);
/**
* Process access control config.
* @param acl: where to store.
* @param cfg: config options.
* @param v: views structure
* @return 0 on error.
*/
int acl_list_apply_cfg(struct acl_list* acl, struct config_file* cfg,
struct views* v);
/**
* Lookup access control status for acl structure.
* @param acl: structure for acl storage.
* @return: what to do with message from this address.
*/
enum acl_access acl_get_control(struct acl_addr* acl);
/**
* Lookup address to see its acl structure
* @param acl: structure for address storage.
* @param addr: address to check
* @param addrlen: length of addr.
* @return: acl structure from this address.
*/
struct acl_addr*
acl_addr_lookup(struct acl_list* acl, struct sockaddr_storage* addr,
socklen_t addrlen);
/**
* Get memory used by acl structure.
* @param acl: structure for address storage.
* @return bytes in use.
*/
size_t acl_list_get_mem(struct acl_list* acl);
#endif /* DAEMON_ACL_LIST_H */

898
external/unbound/daemon/cachedump.c vendored
View File

@ -1,898 +0,0 @@
/*
* daemon/cachedump.c - dump the cache to text format.
*
* Copyright (c) 2008, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file contains functions to read and write the cache(s)
* to text format.
*/
#include "config.h"
#include <openssl/ssl.h>
#include "daemon/cachedump.h"
#include "daemon/remote.h"
#include "daemon/worker.h"
#include "services/cache/rrset.h"
#include "services/cache/dns.h"
#include "services/cache/infra.h"
#include "util/data/msgreply.h"
#include "util/regional.h"
#include "util/net_help.h"
#include "util/data/dname.h"
#include "iterator/iterator.h"
#include "iterator/iter_delegpt.h"
#include "iterator/iter_utils.h"
#include "iterator/iter_fwd.h"
#include "iterator/iter_hints.h"
#include "sldns/sbuffer.h"
#include "sldns/wire2str.h"
#include "sldns/str2wire.h"
/** dump one rrset zonefile line */
static int
dump_rrset_line(SSL* ssl, struct ub_packed_rrset_key* k, time_t now, size_t i)
{
char s[65535];
if(!packed_rr_to_string(k, i, now, s, sizeof(s))) {
return ssl_printf(ssl, "BADRR\n");
}
return ssl_printf(ssl, "%s", s);
}
/** dump rrset key and data info */
static int
dump_rrset(SSL* ssl, struct ub_packed_rrset_key* k,
struct packed_rrset_data* d, time_t now)
{
size_t i;
/* rd lock held by caller */
if(!k || !d) return 1;
if(d->ttl < now) return 1; /* expired */
/* meta line */
if(!ssl_printf(ssl, ";rrset%s " ARG_LL "d %u %u %d %d\n",
(k->rk.flags & PACKED_RRSET_NSEC_AT_APEX)?" nsec_apex":"",
(long long)(d->ttl - now),
(unsigned)d->count, (unsigned)d->rrsig_count,
(int)d->trust, (int)d->security
))
return 0;
for(i=0; i<d->count + d->rrsig_count; i++) {
if(!dump_rrset_line(ssl, k, now, i))
return 0;
}
return 1;
}
/** dump lruhash rrset cache */
static int
dump_rrset_lruhash(SSL* ssl, struct lruhash* h, time_t now)
{
struct lruhash_entry* e;
/* lruhash already locked by caller */
/* walk in order of lru; best first */
for(e=h->lru_start; e; e = e->lru_next) {
lock_rw_rdlock(&e->lock);
if(!dump_rrset(ssl, (struct ub_packed_rrset_key*)e->key,
(struct packed_rrset_data*)e->data, now)) {
lock_rw_unlock(&e->lock);
return 0;
}
lock_rw_unlock(&e->lock);
}
return 1;
}
/** dump rrset cache */
static int
dump_rrset_cache(SSL* ssl, struct worker* worker)
{
struct rrset_cache* r = worker->env.rrset_cache;
size_t slab;
if(!ssl_printf(ssl, "START_RRSET_CACHE\n")) return 0;
for(slab=0; slab<r->table.size; slab++) {
lock_quick_lock(&r->table.array[slab]->lock);
if(!dump_rrset_lruhash(ssl, r->table.array[slab],
*worker->env.now)) {
lock_quick_unlock(&r->table.array[slab]->lock);
return 0;
}
lock_quick_unlock(&r->table.array[slab]->lock);
}
return ssl_printf(ssl, "END_RRSET_CACHE\n");
}
/** dump message to rrset reference */
static int
dump_msg_ref(SSL* ssl, struct ub_packed_rrset_key* k)
{
char* nm, *tp, *cl;
nm = sldns_wire2str_dname(k->rk.dname, k->rk.dname_len);
tp = sldns_wire2str_type(ntohs(k->rk.type));
cl = sldns_wire2str_class(ntohs(k->rk.rrset_class));
if(!nm || !cl || !tp) {
free(nm);
free(tp);
free(cl);
return ssl_printf(ssl, "BADREF\n");
}
if(!ssl_printf(ssl, "%s %s %s %d\n", nm, cl, tp, (int)k->rk.flags)) {
free(nm);
free(tp);
free(cl);
return 0;
}
free(nm);
free(tp);
free(cl);
return 1;
}
/** dump message entry */
static int
dump_msg(SSL* ssl, struct query_info* k, struct reply_info* d,
time_t now)
{
size_t i;
char* nm, *tp, *cl;
if(!k || !d) return 1;
if(d->ttl < now) return 1; /* expired */
nm = sldns_wire2str_dname(k->qname, k->qname_len);
tp = sldns_wire2str_type(k->qtype);
cl = sldns_wire2str_class(k->qclass);
if(!nm || !tp || !cl) {
free(nm);
free(tp);
free(cl);
return 1; /* skip this entry */
}
if(!rrset_array_lock(d->ref, d->rrset_count, now)) {
/* rrsets have timed out or do not exist */
free(nm);
free(tp);
free(cl);
return 1; /* skip this entry */
}
/* meta line */
if(!ssl_printf(ssl, "msg %s %s %s %d %d " ARG_LL "d %d %u %u %u\n",
nm, cl, tp,
(int)d->flags, (int)d->qdcount,
(long long)(d->ttl-now), (int)d->security,
(unsigned)d->an_numrrsets,
(unsigned)d->ns_numrrsets,
(unsigned)d->ar_numrrsets)) {
free(nm);
free(tp);
free(cl);
rrset_array_unlock(d->ref, d->rrset_count);
return 0;
}
free(nm);
free(tp);
free(cl);
for(i=0; i<d->rrset_count; i++) {
if(!dump_msg_ref(ssl, d->rrsets[i])) {
rrset_array_unlock(d->ref, d->rrset_count);
return 0;
}
}
rrset_array_unlock(d->ref, d->rrset_count);
return 1;
}
/** copy msg to worker pad */
static int
copy_msg(struct regional* region, struct lruhash_entry* e,
struct query_info** k, struct reply_info** d)
{
struct reply_info* rep = (struct reply_info*)e->data;
if(rep->rrset_count > RR_COUNT_MAX)
return 0; /* to protect against integer overflow */
*d = (struct reply_info*)regional_alloc_init(region, e->data,
sizeof(struct reply_info) +
sizeof(struct rrset_ref) * (rep->rrset_count-1) +
sizeof(struct ub_packed_rrset_key*) * rep->rrset_count);
if(!*d)
return 0;
(*d)->rrsets = (struct ub_packed_rrset_key**)(void *)(
(uint8_t*)(&((*d)->ref[0])) +
sizeof(struct rrset_ref) * rep->rrset_count);
*k = (struct query_info*)regional_alloc_init(region,
e->key, sizeof(struct query_info));
if(!*k)
return 0;
(*k)->qname = regional_alloc_init(region,
(*k)->qname, (*k)->qname_len);
return (*k)->qname != NULL;
}
/** dump lruhash msg cache */
static int
dump_msg_lruhash(SSL* ssl, struct worker* worker, struct lruhash* h)
{
struct lruhash_entry* e;
struct query_info* k;
struct reply_info* d;
/* lruhash already locked by caller */
/* walk in order of lru; best first */
for(e=h->lru_start; e; e = e->lru_next) {
regional_free_all(worker->scratchpad);
lock_rw_rdlock(&e->lock);
/* make copy of rrset in worker buffer */
if(!copy_msg(worker->scratchpad, e, &k, &d)) {
lock_rw_unlock(&e->lock);
return 0;
}
lock_rw_unlock(&e->lock);
/* release lock so we can lookup the rrset references
* in the rrset cache */
if(!dump_msg(ssl, k, d, *worker->env.now)) {
return 0;
}
}
return 1;
}
/** dump msg cache */
static int
dump_msg_cache(SSL* ssl, struct worker* worker)
{
struct slabhash* sh = worker->env.msg_cache;
size_t slab;
if(!ssl_printf(ssl, "START_MSG_CACHE\n")) return 0;
for(slab=0; slab<sh->size; slab++) {
lock_quick_lock(&sh->array[slab]->lock);
if(!dump_msg_lruhash(ssl, worker, sh->array[slab])) {
lock_quick_unlock(&sh->array[slab]->lock);
return 0;
}
lock_quick_unlock(&sh->array[slab]->lock);
}
return ssl_printf(ssl, "END_MSG_CACHE\n");
}
int
dump_cache(SSL* ssl, struct worker* worker)
{
if(!dump_rrset_cache(ssl, worker))
return 0;
if(!dump_msg_cache(ssl, worker))
return 0;
return ssl_printf(ssl, "EOF\n");
}
/** read a line from ssl into buffer */
static int
ssl_read_buf(SSL* ssl, sldns_buffer* buf)
{
return ssl_read_line(ssl, (char*)sldns_buffer_begin(buf),
sldns_buffer_capacity(buf));
}
/** check fixed text on line */
static int
read_fixed(SSL* ssl, sldns_buffer* buf, const char* str)
{
if(!ssl_read_buf(ssl, buf)) return 0;
return (strcmp((char*)sldns_buffer_begin(buf), str) == 0);
}
/** load an RR into rrset */
static int
load_rr(SSL* ssl, sldns_buffer* buf, struct regional* region,
struct ub_packed_rrset_key* rk, struct packed_rrset_data* d,
unsigned int i, int is_rrsig, int* go_on, time_t now)
{
uint8_t rr[LDNS_RR_BUF_SIZE];
size_t rr_len = sizeof(rr), dname_len = 0;
int status;
/* read the line */
if(!ssl_read_buf(ssl, buf))
return 0;
if(strncmp((char*)sldns_buffer_begin(buf), "BADRR\n", 6) == 0) {
*go_on = 0;
return 1;
}
status = sldns_str2wire_rr_buf((char*)sldns_buffer_begin(buf), rr,
&rr_len, &dname_len, 3600, NULL, 0, NULL, 0);
if(status != 0) {
log_warn("error cannot parse rr: %s: %s",
sldns_get_errorstr_parse(status),
(char*)sldns_buffer_begin(buf));
return 0;
}
if(is_rrsig && sldns_wirerr_get_type(rr, rr_len, dname_len)
!= LDNS_RR_TYPE_RRSIG) {
log_warn("error expected rrsig but got %s",
(char*)sldns_buffer_begin(buf));
return 0;
}
/* convert ldns rr into packed_rr */
d->rr_ttl[i] = (time_t)sldns_wirerr_get_ttl(rr, rr_len, dname_len) + now;
sldns_buffer_clear(buf);
d->rr_len[i] = sldns_wirerr_get_rdatalen(rr, rr_len, dname_len)+2;
d->rr_data[i] = (uint8_t*)regional_alloc_init(region,
sldns_wirerr_get_rdatawl(rr, rr_len, dname_len), d->rr_len[i]);
if(!d->rr_data[i]) {
log_warn("error out of memory");
return 0;
}
/* if first entry, fill the key structure */
if(i==0) {
rk->rk.type = htons(sldns_wirerr_get_type(rr, rr_len, dname_len));
rk->rk.rrset_class = htons(sldns_wirerr_get_class(rr, rr_len, dname_len));
rk->rk.dname_len = dname_len;
rk->rk.dname = regional_alloc_init(region, rr, dname_len);
if(!rk->rk.dname) {
log_warn("error out of memory");
return 0;
}
}
return 1;
}
/** move entry into cache */
static int
move_into_cache(struct ub_packed_rrset_key* k,
struct packed_rrset_data* d, struct worker* worker)
{
struct ub_packed_rrset_key* ak;
struct packed_rrset_data* ad;
size_t s, i, num = d->count + d->rrsig_count;
struct rrset_ref ref;
uint8_t* p;
ak = alloc_special_obtain(&worker->alloc);
if(!ak) {
log_warn("error out of memory");
return 0;
}
ak->entry.data = NULL;
ak->rk = k->rk;
ak->entry.hash = rrset_key_hash(&k->rk);
ak->rk.dname = (uint8_t*)memdup(k->rk.dname, k->rk.dname_len);
if(!ak->rk.dname) {
log_warn("error out of memory");
ub_packed_rrset_parsedelete(ak, &worker->alloc);
return 0;
}
s = sizeof(*ad) + (sizeof(size_t) + sizeof(uint8_t*) +
sizeof(time_t))* num;
for(i=0; i<num; i++)
s += d->rr_len[i];
ad = (struct packed_rrset_data*)malloc(s);
if(!ad) {
log_warn("error out of memory");
ub_packed_rrset_parsedelete(ak, &worker->alloc);
return 0;
}
p = (uint8_t*)ad;
memmove(p, d, sizeof(*ad));
p += sizeof(*ad);
memmove(p, &d->rr_len[0], sizeof(size_t)*num);
p += sizeof(size_t)*num;
memmove(p, &d->rr_data[0], sizeof(uint8_t*)*num);
p += sizeof(uint8_t*)*num;
memmove(p, &d->rr_ttl[0], sizeof(time_t)*num);
p += sizeof(time_t)*num;
for(i=0; i<num; i++) {
memmove(p, d->rr_data[i], d->rr_len[i]);
p += d->rr_len[i];
}
packed_rrset_ptr_fixup(ad);
ak->entry.data = ad;
ref.key = ak;
ref.id = ak->id;
(void)rrset_cache_update(worker->env.rrset_cache, &ref,
&worker->alloc, *worker->env.now);
return 1;
}
/** load an rrset entry */
static int
load_rrset(SSL* ssl, sldns_buffer* buf, struct worker* worker)
{
char* s = (char*)sldns_buffer_begin(buf);
struct regional* region = worker->scratchpad;
struct ub_packed_rrset_key* rk;
struct packed_rrset_data* d;
unsigned int rr_count, rrsig_count, trust, security;
long long ttl;
unsigned int i;
int go_on = 1;
regional_free_all(region);
rk = (struct ub_packed_rrset_key*)regional_alloc_zero(region,
sizeof(*rk));
d = (struct packed_rrset_data*)regional_alloc_zero(region, sizeof(*d));
if(!rk || !d) {
log_warn("error out of memory");
return 0;
}
if(strncmp(s, ";rrset", 6) != 0) {
log_warn("error expected ';rrset' but got %s", s);
return 0;
}
s += 6;
if(strncmp(s, " nsec_apex", 10) == 0) {
s += 10;
rk->rk.flags |= PACKED_RRSET_NSEC_AT_APEX;
}
if(sscanf(s, " " ARG_LL "d %u %u %u %u", &ttl, &rr_count, &rrsig_count,
&trust, &security) != 5) {
log_warn("error bad rrset spec %s", s);
return 0;
}
if(rr_count == 0 && rrsig_count == 0) {
log_warn("bad rrset without contents");
return 0;
}
if(rr_count > RR_COUNT_MAX || rrsig_count > RR_COUNT_MAX) {
log_warn("bad rrset with too many rrs");
return 0;
}
d->count = (size_t)rr_count;
d->rrsig_count = (size_t)rrsig_count;
d->security = (enum sec_status)security;
d->trust = (enum rrset_trust)trust;
d->ttl = (time_t)ttl + *worker->env.now;
d->rr_len = regional_alloc_zero(region,
sizeof(size_t)*(d->count+d->rrsig_count));
d->rr_ttl = regional_alloc_zero(region,
sizeof(time_t)*(d->count+d->rrsig_count));
d->rr_data = regional_alloc_zero(region,
sizeof(uint8_t*)*(d->count+d->rrsig_count));
if(!d->rr_len || !d->rr_ttl || !d->rr_data) {
log_warn("error out of memory");
return 0;
}
/* read the rr's themselves */
for(i=0; i<rr_count; i++) {
if(!load_rr(ssl, buf, region, rk, d, i, 0,
&go_on, *worker->env.now)) {
log_warn("could not read rr %u", i);
return 0;
}
}
for(i=0; i<rrsig_count; i++) {
if(!load_rr(ssl, buf, region, rk, d, i+rr_count, 1,
&go_on, *worker->env.now)) {
log_warn("could not read rrsig %u", i);
return 0;
}
}
if(!go_on) {
/* skip this entry */
return 1;
}
return move_into_cache(rk, d, worker);
}
/** load rrset cache */
static int
load_rrset_cache(SSL* ssl, struct worker* worker)
{
sldns_buffer* buf = worker->env.scratch_buffer;
if(!read_fixed(ssl, buf, "START_RRSET_CACHE")) return 0;
while(ssl_read_buf(ssl, buf) &&
strcmp((char*)sldns_buffer_begin(buf), "END_RRSET_CACHE")!=0) {
if(!load_rrset(ssl, buf, worker))
return 0;
}
return 1;
}
/** read qinfo from next three words */
static char*
load_qinfo(char* str, struct query_info* qinfo, struct regional* region)
{
/* s is part of the buf */
char* s = str;
uint8_t rr[LDNS_RR_BUF_SIZE];
size_t rr_len = sizeof(rr), dname_len = 0;
int status;
/* skip three words */
s = strchr(str, ' ');
if(s) s = strchr(s+1, ' ');
if(s) s = strchr(s+1, ' ');
if(!s) {
log_warn("error line too short, %s", str);
return NULL;
}
s[0] = 0;
s++;
/* parse them */
status = sldns_str2wire_rr_question_buf(str, rr, &rr_len, &dname_len,
NULL, 0, NULL, 0);
if(status != 0) {
log_warn("error cannot parse: %s %s",
sldns_get_errorstr_parse(status), str);
return NULL;
}
qinfo->qtype = sldns_wirerr_get_type(rr, rr_len, dname_len);
qinfo->qclass = sldns_wirerr_get_class(rr, rr_len, dname_len);
qinfo->qname_len = dname_len;
qinfo->qname = (uint8_t*)regional_alloc_init(region, rr, dname_len);
qinfo->local_alias = NULL;
if(!qinfo->qname) {
log_warn("error out of memory");
return NULL;
}
return s;
}
/** load a msg rrset reference */
static int
load_ref(SSL* ssl, sldns_buffer* buf, struct worker* worker,
struct regional *region, struct ub_packed_rrset_key** rrset,
int* go_on)
{
char* s = (char*)sldns_buffer_begin(buf);
struct query_info qinfo;
unsigned int flags;
struct ub_packed_rrset_key* k;
/* read line */
if(!ssl_read_buf(ssl, buf))
return 0;
if(strncmp(s, "BADREF", 6) == 0) {
*go_on = 0; /* its bad, skip it and skip message */
return 1;
}
s = load_qinfo(s, &qinfo, region);
if(!s) {
return 0;
}
if(sscanf(s, " %u", &flags) != 1) {
log_warn("error cannot parse flags: %s", s);
return 0;
}
/* lookup in cache */
k = rrset_cache_lookup(worker->env.rrset_cache, qinfo.qname,
qinfo.qname_len, qinfo.qtype, qinfo.qclass,
(uint32_t)flags, *worker->env.now, 0);
if(!k) {
/* not found or expired */
*go_on = 0;
return 1;
}
/* store in result */
*rrset = packed_rrset_copy_region(k, region, *worker->env.now);
lock_rw_unlock(&k->entry.lock);
return (*rrset != NULL);
}
/** load a msg entry */
static int
load_msg(SSL* ssl, sldns_buffer* buf, struct worker* worker)
{
struct regional* region = worker->scratchpad;
struct query_info qinf;
struct reply_info rep;
char* s = (char*)sldns_buffer_begin(buf);
unsigned int flags, qdcount, security, an, ns, ar;
long long ttl;
size_t i;
int go_on = 1;
regional_free_all(region);
if(strncmp(s, "msg ", 4) != 0) {
log_warn("error expected msg but got %s", s);
return 0;
}
s += 4;
s = load_qinfo(s, &qinf, region);
if(!s) {
return 0;
}
/* read remainder of line */
if(sscanf(s, " %u %u " ARG_LL "d %u %u %u %u", &flags, &qdcount, &ttl,
&security, &an, &ns, &ar) != 7) {
log_warn("error cannot parse numbers: %s", s);
return 0;
}
rep.flags = (uint16_t)flags;
rep.qdcount = (uint16_t)qdcount;
rep.ttl = (time_t)ttl;
rep.prefetch_ttl = PREFETCH_TTL_CALC(rep.ttl);
rep.security = (enum sec_status)security;
if(an > RR_COUNT_MAX || ns > RR_COUNT_MAX || ar > RR_COUNT_MAX) {
log_warn("error too many rrsets");
return 0; /* protect against integer overflow in alloc */
}
rep.an_numrrsets = (size_t)an;
rep.ns_numrrsets = (size_t)ns;
rep.ar_numrrsets = (size_t)ar;
rep.rrset_count = (size_t)an+(size_t)ns+(size_t)ar;
rep.rrsets = (struct ub_packed_rrset_key**)regional_alloc_zero(
region, sizeof(struct ub_packed_rrset_key*)*rep.rrset_count);
/* fill repinfo with references */
for(i=0; i<rep.rrset_count; i++) {
if(!load_ref(ssl, buf, worker, region, &rep.rrsets[i],
&go_on)) {
return 0;
}
}
if(!go_on)
return 1; /* skip this one, not all references satisfied */
if(!dns_cache_store(&worker->env, &qinf, &rep, 0, 0, 0, NULL, flags)) {
log_warn("error out of memory");
return 0;
}
return 1;
}
/** load msg cache */
static int
load_msg_cache(SSL* ssl, struct worker* worker)
{
sldns_buffer* buf = worker->env.scratch_buffer;
if(!read_fixed(ssl, buf, "START_MSG_CACHE")) return 0;
while(ssl_read_buf(ssl, buf) &&
strcmp((char*)sldns_buffer_begin(buf), "END_MSG_CACHE")!=0) {
if(!load_msg(ssl, buf, worker))
return 0;
}
return 1;
}
int
load_cache(SSL* ssl, struct worker* worker)
{
if(!load_rrset_cache(ssl, worker))
return 0;
if(!load_msg_cache(ssl, worker))
return 0;
return read_fixed(ssl, worker->env.scratch_buffer, "EOF");
}
/** print details on a delegation point */
static void
print_dp_details(SSL* ssl, struct worker* worker, struct delegpt* dp)
{
char buf[257];
struct delegpt_addr* a;
int lame, dlame, rlame, rto, edns_vs, to, delay,
tA = 0, tAAAA = 0, tother = 0;
long long entry_ttl;
struct rtt_info ri;
uint8_t edns_lame_known;
for(a = dp->target_list; a; a = a->next_target) {
addr_to_str(&a->addr, a->addrlen, buf, sizeof(buf));
if(!ssl_printf(ssl, "%-16s\t", buf))
return;
if(a->bogus) {
if(!ssl_printf(ssl, "Address is BOGUS. "))
return;
}
/* lookup in infra cache */
delay=0;
entry_ttl = infra_get_host_rto(worker->env.infra_cache,
&a->addr, a->addrlen, dp->name, dp->namelen,
&ri, &delay, *worker->env.now, &tA, &tAAAA, &tother);
if(entry_ttl == -2 && ri.rto >= USEFUL_SERVER_TOP_TIMEOUT) {
if(!ssl_printf(ssl, "expired, rto %d msec, tA %d "
"tAAAA %d tother %d.\n", ri.rto, tA, tAAAA,
tother))
return;
continue;
}
if(entry_ttl == -1 || entry_ttl == -2) {
if(!ssl_printf(ssl, "not in infra cache.\n"))
return;
continue; /* skip stuff not in infra cache */
}
/* uses type_A because most often looked up, but other
* lameness won't be reported then */
if(!infra_get_lame_rtt(worker->env.infra_cache,
&a->addr, a->addrlen, dp->name, dp->namelen,
LDNS_RR_TYPE_A, &lame, &dlame, &rlame, &rto,
*worker->env.now)) {
if(!ssl_printf(ssl, "not in infra cache.\n"))
return;
continue; /* skip stuff not in infra cache */
}
if(!ssl_printf(ssl, "%s%s%s%srto %d msec, ttl " ARG_LL "d, "
"ping %d var %d rtt %d, tA %d, tAAAA %d, tother %d",
lame?"LAME ":"", dlame?"NoDNSSEC ":"",
a->lame?"AddrWasParentSide ":"",
rlame?"NoAuthButRecursive ":"", rto, entry_ttl,
ri.srtt, ri.rttvar, rtt_notimeout(&ri),
tA, tAAAA, tother))
return;
if(delay)
if(!ssl_printf(ssl, ", probedelay %d", delay))
return;
if(infra_host(worker->env.infra_cache, &a->addr, a->addrlen,
dp->name, dp->namelen, *worker->env.now, &edns_vs,
&edns_lame_known, &to)) {
if(edns_vs == -1) {
if(!ssl_printf(ssl, ", noEDNS%s.",
edns_lame_known?" probed":" assumed"))
return;
} else {
if(!ssl_printf(ssl, ", EDNS %d%s.", edns_vs,
edns_lame_known?" probed":" assumed"))
return;
}
}
if(!ssl_printf(ssl, "\n"))
return;
}
}
/** print main dp info */
static void
print_dp_main(SSL* ssl, struct delegpt* dp, struct dns_msg* msg)
{
size_t i, n_ns, n_miss, n_addr, n_res, n_avail;
/* print the dp */
if(msg)
for(i=0; i<msg->rep->rrset_count; i++) {
struct ub_packed_rrset_key* k = msg->rep->rrsets[i];
struct packed_rrset_data* d =
(struct packed_rrset_data*)k->entry.data;
if(d->security == sec_status_bogus) {
if(!ssl_printf(ssl, "Address is BOGUS:\n"))
return;
}
if(!dump_rrset(ssl, k, d, 0))
return;
}
delegpt_count_ns(dp, &n_ns, &n_miss);
delegpt_count_addr(dp, &n_addr, &n_res, &n_avail);
/* since dp has not been used by iterator, all are available*/
if(!ssl_printf(ssl, "Delegation with %d names, of which %d "
"can be examined to query further addresses.\n"
"%sIt provides %d IP addresses.\n",
(int)n_ns, (int)n_miss, (dp->bogus?"It is BOGUS. ":""),
(int)n_addr))
return;
}
int print_deleg_lookup(SSL* ssl, struct worker* worker, uint8_t* nm,
size_t nmlen, int ATTR_UNUSED(nmlabs))
{
/* deep links into the iterator module */
struct delegpt* dp;
struct dns_msg* msg;
struct regional* region = worker->scratchpad;
char b[260];
struct query_info qinfo;
struct iter_hints_stub* stub;
regional_free_all(region);
qinfo.qname = nm;
qinfo.qname_len = nmlen;
qinfo.qtype = LDNS_RR_TYPE_A;
qinfo.qclass = LDNS_RR_CLASS_IN;
qinfo.local_alias = NULL;
dname_str(nm, b);
if(!ssl_printf(ssl, "The following name servers are used for lookup "
"of %s\n", b))
return 0;
dp = forwards_lookup(worker->env.fwds, nm, qinfo.qclass);
if(dp) {
if(!ssl_printf(ssl, "forwarding request:\n"))
return 0;
print_dp_main(ssl, dp, NULL);
print_dp_details(ssl, worker, dp);
return 1;
}
while(1) {
dp = dns_cache_find_delegation(&worker->env, nm, nmlen,
qinfo.qtype, qinfo.qclass, region, &msg,
*worker->env.now);
if(!dp) {
return ssl_printf(ssl, "no delegation from "
"cache; goes to configured roots\n");
}
/* go up? */
if(iter_dp_is_useless(&qinfo, BIT_RD, dp)) {
print_dp_main(ssl, dp, msg);
print_dp_details(ssl, worker, dp);
if(!ssl_printf(ssl, "cache delegation was "
"useless (no IP addresses)\n"))
return 0;
if(dname_is_root(nm)) {
/* goes to root config */
return ssl_printf(ssl, "no delegation from "
"cache; goes to configured roots\n");
} else {
/* useless, goes up */
nm = dp->name;
nmlen = dp->namelen;
dname_remove_label(&nm, &nmlen);
dname_str(nm, b);
if(!ssl_printf(ssl, "going up, lookup %s\n", b))
return 0;
continue;
}
}
stub = hints_lookup_stub(worker->env.hints, nm, qinfo.qclass,
dp);
if(stub) {
if(stub->noprime) {
if(!ssl_printf(ssl, "The noprime stub servers "
"are used:\n"))
return 0;
} else {
if(!ssl_printf(ssl, "The stub is primed "
"with servers:\n"))
return 0;
}
print_dp_main(ssl, stub->dp, NULL);
print_dp_details(ssl, worker, stub->dp);
} else {
print_dp_main(ssl, dp, msg);
print_dp_details(ssl, worker, dp);
}
break;
}
return 1;
}

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external/unbound/daemon/cachedump.h vendored
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@ -1,107 +0,0 @@
/*
* daemon/cachedump.h - dump the cache to text format.
*
* Copyright (c) 2008, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file contains functions to read and write the cache(s)
* to text format.
*
* The format of the file is as follows:
* [RRset cache]
* [Message cache]
* EOF -- fixed string "EOF" before end of the file.
*
* The RRset cache is:
* START_RRSET_CACHE
* [rrset]*
* END_RRSET_CACHE
*
* rrset is:
* ;rrset [nsec_apex] TTL rr_count rrsig_count trust security
* resource records, one per line, in zonefile format
* rrsig records, one per line, in zonefile format
* If the text conversion fails, BADRR is printed on the line.
*
* The Message cache is:
* START_MSG_CACHE
* [msg]*
* END_MSG_CACHE
*
* msg is:
* msg name class type flags qdcount ttl security an ns ar
* list of rrset references, one per line. If conversion fails, BADREF
* reference is:
* name class type flags
*
* Expired cache entries are not printed.
*/
#ifndef DAEMON_DUMPCACHE_H
#define DAEMON_DUMPCACHE_H
struct worker;
/**
* Dump cache(s) to text
* @param ssl: to print to
* @param worker: worker that is available (buffers, etc) and has
* ptrs to the caches.
* @return false on ssl print error.
*/
int dump_cache(SSL* ssl, struct worker* worker);
/**
* Load cache(s) from text
* @param ssl: to read from
* @param worker: worker that is available (buffers, etc) and has
* ptrs to the caches.
* @return false on ssl error.
*/
int load_cache(SSL* ssl, struct worker* worker);
/**
* Print the delegation used to lookup for this name.
* @param ssl: to read from
* @param worker: worker that is available (buffers, etc) and has
* ptrs to the caches.
* @param nm: name to lookup
* @param nmlen: length of name.
* @param nmlabs: labels in name.
* @return false on ssl error.
*/
int print_deleg_lookup(SSL* ssl, struct worker* worker, uint8_t* nm,
size_t nmlen, int nmlabs);
#endif /* DAEMON_DUMPCACHE_H */

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@ -1,795 +0,0 @@
/*
* daemon/daemon.c - collection of workers that handles requests.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* The daemon consists of global settings and a number of workers.
*/
#include "config.h"
#ifdef HAVE_OPENSSL_ERR_H
#include <openssl/err.h>
#endif
#ifdef HAVE_OPENSSL_RAND_H
#include <openssl/rand.h>
#endif
#ifdef HAVE_OPENSSL_CONF_H
#include <openssl/conf.h>
#endif
#ifdef HAVE_OPENSSL_ENGINE_H
#include <openssl/engine.h>
#endif
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#include <sys/time.h>
#ifdef HAVE_NSS
/* nss3 */
#include "nss.h"
#endif
#include "daemon/daemon.h"
#include "daemon/worker.h"
#include "daemon/remote.h"
#include "daemon/acl_list.h"
#include "util/log.h"
#include "util/config_file.h"
#include "util/data/msgreply.h"
#include "util/shm_side/shm_main.h"
#include "util/storage/lookup3.h"
#include "util/storage/slabhash.h"
#include "services/listen_dnsport.h"
#include "services/cache/rrset.h"
#include "services/cache/infra.h"
#include "services/localzone.h"
#include "services/view.h"
#include "services/modstack.h"
#include "util/module.h"
#include "util/random.h"
#include "util/tube.h"
#include "util/net_help.h"
#include "sldns/keyraw.h"
#include "respip/respip.h"
#include <signal.h>
#ifdef HAVE_SYSTEMD
#include <systemd/sd-daemon.h>
#endif
/** How many quit requests happened. */
static int sig_record_quit = 0;
/** How many reload requests happened. */
static int sig_record_reload = 0;
#if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS
/** cleaner ssl memory freeup */
static void* comp_meth = NULL;
#endif
#ifdef LEX_HAS_YYLEX_DESTROY
/** remove buffers for parsing and init */
int ub_c_lex_destroy(void);
#endif
/** used when no other sighandling happens, so we don't die
* when multiple signals in quick succession are sent to us.
* @param sig: signal number.
* @return signal handler return type (void or int).
*/
static RETSIGTYPE record_sigh(int sig)
{
#ifdef LIBEVENT_SIGNAL_PROBLEM
/* cannot log, verbose here because locks may be held */
/* quit on signal, no cleanup and statistics,
because installed libevent version is not threadsafe */
exit(0);
#endif
switch(sig)
{
case SIGTERM:
#ifdef SIGQUIT
case SIGQUIT:
#endif
#ifdef SIGBREAK
case SIGBREAK:
#endif
case SIGINT:
sig_record_quit++;
break;
#ifdef SIGHUP
case SIGHUP:
sig_record_reload++;
break;
#endif
#ifdef SIGPIPE
case SIGPIPE:
break;
#endif
default:
/* ignoring signal */
break;
}
}
/**
* Signal handling during the time when netevent is disabled.
* Stores signals to replay later.
*/
static void
signal_handling_record(void)
{
if( signal(SIGTERM, record_sigh) == SIG_ERR ||
#ifdef SIGQUIT
signal(SIGQUIT, record_sigh) == SIG_ERR ||
#endif
#ifdef SIGBREAK
signal(SIGBREAK, record_sigh) == SIG_ERR ||
#endif
#ifdef SIGHUP
signal(SIGHUP, record_sigh) == SIG_ERR ||
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN) == SIG_ERR ||
#endif
signal(SIGINT, record_sigh) == SIG_ERR
)
log_err("install sighandler: %s", strerror(errno));
}
/**
* Replay old signals.
* @param wrk: worker that handles signals.
*/
static void
signal_handling_playback(struct worker* wrk)
{
#ifdef SIGHUP
if(sig_record_reload) {
# ifdef HAVE_SYSTEMD
sd_notify(0, "RELOADING=1");
# endif
worker_sighandler(SIGHUP, wrk);
# ifdef HAVE_SYSTEMD
sd_notify(0, "READY=1");
# endif
}
#endif
if(sig_record_quit)
worker_sighandler(SIGTERM, wrk);
sig_record_quit = 0;
sig_record_reload = 0;
}
struct daemon*
daemon_init(void)
{
struct daemon* daemon = (struct daemon*)calloc(1,
sizeof(struct daemon));
#ifdef USE_WINSOCK
int r;
WSADATA wsa_data;
#endif
if(!daemon)
return NULL;
#ifdef USE_WINSOCK
r = WSAStartup(MAKEWORD(2,2), &wsa_data);
if(r != 0) {
fatal_exit("could not init winsock. WSAStartup: %s",
wsa_strerror(r));
}
#endif /* USE_WINSOCK */
signal_handling_record();
checklock_start();
#ifdef HAVE_SSL
# ifdef HAVE_ERR_LOAD_CRYPTO_STRINGS
ERR_load_crypto_strings();
# endif
ERR_load_SSL_strings();
# ifdef USE_GOST
(void)sldns_key_EVP_load_gost_id();
# endif
# if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_CRYPTO)
OpenSSL_add_all_algorithms();
# else
OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS
| OPENSSL_INIT_ADD_ALL_DIGESTS
| OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
# endif
# if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS
/* grab the COMP method ptr because openssl leaks it */
comp_meth = (void*)SSL_COMP_get_compression_methods();
# endif
# if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL)
(void)SSL_library_init();
# else
(void)OPENSSL_init_ssl(0, NULL);
# endif
# if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
if(!ub_openssl_lock_init())
fatal_exit("could not init openssl locks");
# endif
#elif defined(HAVE_NSS)
if(NSS_NoDB_Init(NULL) != SECSuccess)
fatal_exit("could not init NSS");
#endif /* HAVE_SSL or HAVE_NSS */
#ifdef HAVE_TZSET
/* init timezone info while we are not chrooted yet */
tzset();
#endif
/* open /dev/random if needed */
ub_systemseed((unsigned)time(NULL)^(unsigned)getpid()^0xe67);
daemon->need_to_exit = 0;
modstack_init(&daemon->mods);
if(!(daemon->env = (struct module_env*)calloc(1,
sizeof(*daemon->env)))) {
free(daemon);
return NULL;
}
/* init edns_known_options */
if(!edns_known_options_init(daemon->env)) {
free(daemon->env);
free(daemon);
return NULL;
}
alloc_init(&daemon->superalloc, NULL, 0);
daemon->acl = acl_list_create();
if(!daemon->acl) {
edns_known_options_delete(daemon->env);
free(daemon->env);
free(daemon);
return NULL;
}
if(gettimeofday(&daemon->time_boot, NULL) < 0)
log_err("gettimeofday: %s", strerror(errno));
daemon->time_last_stat = daemon->time_boot;
return daemon;
}
int
daemon_open_shared_ports(struct daemon* daemon)
{
log_assert(daemon);
if(daemon->cfg->port != daemon->listening_port) {
size_t i;
struct listen_port* p0;
daemon->reuseport = 0;
/* free and close old ports */
if(daemon->ports != NULL) {
for(i=0; i<daemon->num_ports; i++)
listening_ports_free(daemon->ports[i]);
free(daemon->ports);
daemon->ports = NULL;
}
/* see if we want to reuseport */
#ifdef SO_REUSEPORT
if(daemon->cfg->so_reuseport && daemon->cfg->num_threads > 0)
daemon->reuseport = 1;
#endif
/* try to use reuseport */
p0 = listening_ports_open(daemon->cfg, &daemon->reuseport);
if(!p0) {
listening_ports_free(p0);
return 0;
}
if(daemon->reuseport) {
/* reuseport was successful, allocate for it */
daemon->num_ports = (size_t)daemon->cfg->num_threads;
} else {
/* do the normal, singleportslist thing,
* reuseport not enabled or did not work */
daemon->num_ports = 1;
}
if(!(daemon->ports = (struct listen_port**)calloc(
daemon->num_ports, sizeof(*daemon->ports)))) {
listening_ports_free(p0);
return 0;
}
daemon->ports[0] = p0;
if(daemon->reuseport) {
/* continue to use reuseport */
for(i=1; i<daemon->num_ports; i++) {
if(!(daemon->ports[i]=
listening_ports_open(daemon->cfg,
&daemon->reuseport))
|| !daemon->reuseport ) {
for(i=0; i<daemon->num_ports; i++)
listening_ports_free(daemon->ports[i]);
free(daemon->ports);
daemon->ports = NULL;
return 0;
}
}
}
daemon->listening_port = daemon->cfg->port;
}
if(!daemon->cfg->remote_control_enable && daemon->rc_port) {
listening_ports_free(daemon->rc_ports);
daemon->rc_ports = NULL;
daemon->rc_port = 0;
}
if(daemon->cfg->remote_control_enable &&
daemon->cfg->control_port != daemon->rc_port) {
listening_ports_free(daemon->rc_ports);
if(!(daemon->rc_ports=daemon_remote_open_ports(daemon->cfg)))
return 0;
daemon->rc_port = daemon->cfg->control_port;
}
return 1;
}
/**
* Setup modules. setup module stack.
* @param daemon: the daemon
*/
static void daemon_setup_modules(struct daemon* daemon)
{
daemon->env->cfg = daemon->cfg;
daemon->env->alloc = &daemon->superalloc;
daemon->env->worker = NULL;
daemon->env->need_to_validate = 0; /* set by module init below */
if(!modstack_setup(&daemon->mods, daemon->cfg->module_conf,
daemon->env)) {
fatal_exit("failed to setup modules");
}
log_edns_known_options(VERB_ALGO, daemon->env);
}
/**
* Obtain allowed port numbers, concatenate the list, and shuffle them
* (ready to be handed out to threads).
* @param daemon: the daemon. Uses rand and cfg.
* @param shufport: the portlist output.
* @return number of ports available.
*/
static int daemon_get_shufport(struct daemon* daemon, int* shufport)
{
int i, n, k, temp;
int avail = 0;
for(i=0; i<65536; i++) {
if(daemon->cfg->outgoing_avail_ports[i]) {
shufport[avail++] = daemon->cfg->
outgoing_avail_ports[i];
}
}
if(avail == 0)
fatal_exit("no ports are permitted for UDP, add "
"with outgoing-port-permit");
/* Knuth shuffle */
n = avail;
while(--n > 0) {
k = ub_random_max(daemon->rand, n+1); /* 0<= k<= n */
temp = shufport[k];
shufport[k] = shufport[n];
shufport[n] = temp;
}
return avail;
}
/**
* Allocate empty worker structures. With backptr and thread-number,
* from 0..numthread initialised. Used as user arguments to new threads.
* Creates the daemon random generator if it does not exist yet.
* The random generator stays existing between reloads with a unique state.
* @param daemon: the daemon with (new) config settings.
*/
static void
daemon_create_workers(struct daemon* daemon)
{
int i, numport;
int* shufport;
log_assert(daemon && daemon->cfg);
if(!daemon->rand) {
unsigned int seed = (unsigned int)time(NULL) ^
(unsigned int)getpid() ^ 0x438;
daemon->rand = ub_initstate(seed, NULL);
if(!daemon->rand)
fatal_exit("could not init random generator");
}
hash_set_raninit((uint32_t)ub_random(daemon->rand));
shufport = (int*)calloc(65536, sizeof(int));
if(!shufport)
fatal_exit("out of memory during daemon init");
numport = daemon_get_shufport(daemon, shufport);
verbose(VERB_ALGO, "total of %d outgoing ports available", numport);
daemon->num = (daemon->cfg->num_threads?daemon->cfg->num_threads:1);
if(daemon->reuseport && (int)daemon->num < (int)daemon->num_ports) {
log_warn("cannot reduce num-threads to %d because so-reuseport "
"so continuing with %d threads.", (int)daemon->num,
(int)daemon->num_ports);
daemon->num = (int)daemon->num_ports;
}
daemon->workers = (struct worker**)calloc((size_t)daemon->num,
sizeof(struct worker*));
if(!daemon->workers)
fatal_exit("out of memory during daemon init");
if(daemon->cfg->dnstap) {
#ifdef USE_DNSTAP
daemon->dtenv = dt_create(daemon->cfg->dnstap_socket_path,
(unsigned int)daemon->num);
if (!daemon->dtenv)
fatal_exit("dt_create failed");
dt_apply_cfg(daemon->dtenv, daemon->cfg);
#else
fatal_exit("dnstap enabled in config but not built with dnstap support");
#endif
}
for(i=0; i<daemon->num; i++) {
if(!(daemon->workers[i] = worker_create(daemon, i,
shufport+numport*i/daemon->num,
numport*(i+1)/daemon->num - numport*i/daemon->num)))
/* the above is not ports/numthr, due to rounding */
fatal_exit("could not create worker");
}
free(shufport);
}
#ifdef THREADS_DISABLED
/**
* Close all pipes except for the numbered thread.
* @param daemon: daemon to close pipes in.
* @param thr: thread number 0..num-1 of thread to skip.
*/
static void close_other_pipes(struct daemon* daemon, int thr)
{
int i;
for(i=0; i<daemon->num; i++)
if(i!=thr) {
if(i==0) {
/* only close read part, need to write stats */
tube_close_read(daemon->workers[i]->cmd);
} else {
/* complete close channel to others */
tube_delete(daemon->workers[i]->cmd);
daemon->workers[i]->cmd = NULL;
}
}
}
#endif /* THREADS_DISABLED */
/**
* Function to start one thread.
* @param arg: user argument.
* @return: void* user return value could be used for thread_join results.
*/
static void*
thread_start(void* arg)
{
struct worker* worker = (struct worker*)arg;
int port_num = 0;
log_thread_set(&worker->thread_num);
ub_thread_blocksigs();
#ifdef THREADS_DISABLED
/* close pipe ends used by main */
tube_close_write(worker->cmd);
close_other_pipes(worker->daemon, worker->thread_num);
#endif
#ifdef SO_REUSEPORT
if(worker->daemon->cfg->so_reuseport)
port_num = worker->thread_num % worker->daemon->num_ports;
else
port_num = 0;
#endif
if(!worker_init(worker, worker->daemon->cfg,
worker->daemon->ports[port_num], 0))
fatal_exit("Could not initialize thread");
worker_work(worker);
return NULL;
}
/**
* Fork and init the other threads. Main thread returns for special handling.
* @param daemon: the daemon with other threads to fork.
*/
static void
daemon_start_others(struct daemon* daemon)
{
int i;
log_assert(daemon);
verbose(VERB_ALGO, "start threads");
/* skip i=0, is this thread */
for(i=1; i<daemon->num; i++) {
ub_thread_create(&daemon->workers[i]->thr_id,
thread_start, daemon->workers[i]);
#ifdef THREADS_DISABLED
/* close pipe end of child */
tube_close_read(daemon->workers[i]->cmd);
#endif /* no threads */
}
}
/**
* Stop the other threads.
* @param daemon: the daemon with other threads.
*/
static void
daemon_stop_others(struct daemon* daemon)
{
int i;
log_assert(daemon);
verbose(VERB_ALGO, "stop threads");
/* skip i=0, is this thread */
/* use i=0 buffer for sending cmds; because we are #0 */
for(i=1; i<daemon->num; i++) {
worker_send_cmd(daemon->workers[i], worker_cmd_quit);
}
/* wait for them to quit */
for(i=1; i<daemon->num; i++) {
/* join it to make sure its dead */
verbose(VERB_ALGO, "join %d", i);
ub_thread_join(daemon->workers[i]->thr_id);
verbose(VERB_ALGO, "join success %d", i);
}
}
void
daemon_fork(struct daemon* daemon)
{
int have_view_respip_cfg = 0;
log_assert(daemon);
if(!(daemon->views = views_create()))
fatal_exit("Could not create views: out of memory");
/* create individual views and their localzone/data trees */
if(!views_apply_cfg(daemon->views, daemon->cfg))
fatal_exit("Could not set up views");
if(!acl_list_apply_cfg(daemon->acl, daemon->cfg, daemon->views))
fatal_exit("Could not setup access control list");
if(daemon->cfg->dnscrypt) {
#ifdef USE_DNSCRYPT
daemon->dnscenv = dnsc_create();
if (!daemon->dnscenv)
fatal_exit("dnsc_create failed");
dnsc_apply_cfg(daemon->dnscenv, daemon->cfg);
#else
fatal_exit("dnscrypt enabled in config but unbound was not built with "
"dnscrypt support");
#endif
}
/* create global local_zones */
if(!(daemon->local_zones = local_zones_create()))
fatal_exit("Could not create local zones: out of memory");
if(!local_zones_apply_cfg(daemon->local_zones, daemon->cfg))
fatal_exit("Could not set up local zones");
/* process raw response-ip configuration data */
if(!(daemon->respip_set = respip_set_create()))
fatal_exit("Could not create response IP set");
if(!respip_global_apply_cfg(daemon->respip_set, daemon->cfg))
fatal_exit("Could not set up response IP set");
if(!respip_views_apply_cfg(daemon->views, daemon->cfg,
&have_view_respip_cfg))
fatal_exit("Could not set up per-view response IP sets");
daemon->use_response_ip = !respip_set_is_empty(daemon->respip_set) ||
have_view_respip_cfg;
/* setup modules */
daemon_setup_modules(daemon);
/* response-ip-xxx options don't work as expected without the respip
* module. To avoid run-time operational surprise we reject such
* configuration. */
if(daemon->use_response_ip &&
modstack_find(&daemon->mods, "respip") < 0)
fatal_exit("response-ip options require respip module");
/* first create all the worker structures, so we can pass
* them to the newly created threads.
*/
daemon_create_workers(daemon);
#if defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP)
/* in libev the first inited base gets signals */
if(!worker_init(daemon->workers[0], daemon->cfg, daemon->ports[0], 1))
fatal_exit("Could not initialize main thread");
#endif
/* Now create the threads and init the workers.
* By the way, this is thread #0 (the main thread).
*/
daemon_start_others(daemon);
/* Special handling for the main thread. This is the thread
* that handles signals and remote control.
*/
#if !(defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP))
/* libevent has the last inited base get signals (or any base) */
if(!worker_init(daemon->workers[0], daemon->cfg, daemon->ports[0], 1))
fatal_exit("Could not initialize main thread");
#endif
signal_handling_playback(daemon->workers[0]);
if (!shm_main_init(daemon))
log_warn("SHM has failed");
/* Start resolver service on main thread. */
#ifdef HAVE_SYSTEMD
sd_notify(0, "READY=1");
#endif
log_info("start of service (%s).", PACKAGE_STRING);
worker_work(daemon->workers[0]);
#ifdef HAVE_SYSTEMD
sd_notify(0, "STOPPING=1");
#endif
log_info("service stopped (%s).", PACKAGE_STRING);
/* we exited! a signal happened! Stop other threads */
daemon_stop_others(daemon);
/* Shutdown SHM */
shm_main_shutdown(daemon);
daemon->need_to_exit = daemon->workers[0]->need_to_exit;
}
void
daemon_cleanup(struct daemon* daemon)
{
int i;
log_assert(daemon);
/* before stopping main worker, handle signals ourselves, so we
don't die on multiple reload signals for example. */
signal_handling_record();
log_thread_set(NULL);
/* clean up caches because
* a) RRset IDs will be recycled after a reload, causing collisions
* b) validation config can change, thus rrset, msg, keycache clear */
slabhash_clear(&daemon->env->rrset_cache->table);
slabhash_clear(daemon->env->msg_cache);
local_zones_delete(daemon->local_zones);
daemon->local_zones = NULL;
respip_set_delete(daemon->respip_set);
daemon->respip_set = NULL;
views_delete(daemon->views);
daemon->views = NULL;
/* key cache is cleared by module desetup during next daemon_fork() */
daemon_remote_clear(daemon->rc);
for(i=0; i<daemon->num; i++)
worker_delete(daemon->workers[i]);
free(daemon->workers);
daemon->workers = NULL;
daemon->num = 0;
#ifdef USE_DNSTAP
dt_delete(daemon->dtenv);
#endif
daemon->cfg = NULL;
}
void
daemon_delete(struct daemon* daemon)
{
size_t i;
if(!daemon)
return;
modstack_desetup(&daemon->mods, daemon->env);
daemon_remote_delete(daemon->rc);
for(i = 0; i < daemon->num_ports; i++)
listening_ports_free(daemon->ports[i]);
free(daemon->ports);
listening_ports_free(daemon->rc_ports);
if(daemon->env) {
slabhash_delete(daemon->env->msg_cache);
rrset_cache_delete(daemon->env->rrset_cache);
infra_delete(daemon->env->infra_cache);
edns_known_options_delete(daemon->env);
}
ub_randfree(daemon->rand);
alloc_clear(&daemon->superalloc);
acl_list_delete(daemon->acl);
free(daemon->chroot);
free(daemon->pidfile);
free(daemon->env);
#ifdef HAVE_SSL
SSL_CTX_free((SSL_CTX*)daemon->listen_sslctx);
SSL_CTX_free((SSL_CTX*)daemon->connect_sslctx);
#endif
free(daemon);
#ifdef LEX_HAS_YYLEX_DESTROY
/* lex cleanup */
ub_c_lex_destroy();
#endif
/* libcrypto cleanup */
#ifdef HAVE_SSL
# if defined(USE_GOST) && defined(HAVE_LDNS_KEY_EVP_UNLOAD_GOST)
sldns_key_EVP_unload_gost();
# endif
# if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS && HAVE_DECL_SK_SSL_COMP_POP_FREE
# ifndef S_SPLINT_S
# if OPENSSL_VERSION_NUMBER < 0x10100000
sk_SSL_COMP_pop_free(comp_meth, (void(*)())CRYPTO_free);
# endif
# endif
# endif
# ifdef HAVE_OPENSSL_CONFIG
EVP_cleanup();
# if OPENSSL_VERSION_NUMBER < 0x10100000
ENGINE_cleanup();
# endif
CONF_modules_free();
# endif
# ifdef HAVE_CRYPTO_CLEANUP_ALL_EX_DATA
CRYPTO_cleanup_all_ex_data(); /* safe, no more threads right now */
# endif
# ifdef HAVE_ERR_FREE_STRINGS
ERR_free_strings();
# endif
# if OPENSSL_VERSION_NUMBER < 0x10100000
RAND_cleanup();
# endif
# if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
ub_openssl_lock_delete();
# endif
#elif defined(HAVE_NSS)
NSS_Shutdown();
#endif /* HAVE_SSL or HAVE_NSS */
checklock_stop();
#ifdef USE_WINSOCK
if(WSACleanup() != 0) {
log_err("Could not WSACleanup: %s",
wsa_strerror(WSAGetLastError()));
}
#endif
}
void daemon_apply_cfg(struct daemon* daemon, struct config_file* cfg)
{
daemon->cfg = cfg;
config_apply(cfg);
if(!daemon->env->msg_cache ||
cfg->msg_cache_size != slabhash_get_size(daemon->env->msg_cache) ||
cfg->msg_cache_slabs != daemon->env->msg_cache->size) {
slabhash_delete(daemon->env->msg_cache);
daemon->env->msg_cache = slabhash_create(cfg->msg_cache_slabs,
HASH_DEFAULT_STARTARRAY, cfg->msg_cache_size,
msgreply_sizefunc, query_info_compare,
query_entry_delete, reply_info_delete, NULL);
if(!daemon->env->msg_cache) {
fatal_exit("malloc failure updating config settings");
}
}
if((daemon->env->rrset_cache = rrset_cache_adjust(
daemon->env->rrset_cache, cfg, &daemon->superalloc)) == 0)
fatal_exit("malloc failure updating config settings");
if((daemon->env->infra_cache = infra_adjust(daemon->env->infra_cache,
cfg))==0)
fatal_exit("malloc failure updating config settings");
}

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/*
* daemon/daemon.h - collection of workers that handles requests.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* The daemon consists of global settings and a number of workers.
*/
#ifndef DAEMON_H
#define DAEMON_H
#include "util/locks.h"
#include "util/alloc.h"
#include "services/modstack.h"
#ifdef UB_ON_WINDOWS
# include "util/winsock_event.h"
#endif
struct config_file;
struct worker;
struct listen_port;
struct slabhash;
struct module_env;
struct rrset_cache;
struct acl_list;
struct local_zones;
struct views;
struct ub_randstate;
struct daemon_remote;
struct respip_set;
struct shm_main_info;
#include "dnstap/dnstap_config.h"
#ifdef USE_DNSTAP
struct dt_env;
#endif
#include "dnscrypt/dnscrypt_config.h"
#ifdef USE_DNSCRYPT
struct dnsc_env;
#endif
/**
* Structure holding worker list.
* Holds globally visible information.
*/
struct daemon {
/** The config settings */
struct config_file* cfg;
/** the chroot dir in use, NULL if none */
char* chroot;
/** pidfile that is used */
char* pidfile;
/** port number that has ports opened. */
int listening_port;
/** array of listening ports, opened. Listening ports per worker,
* or just one element[0] shared by the worker threads. */
struct listen_port** ports;
/** size of ports array */
size_t num_ports;
/** reuseport is enabled if true */
int reuseport;
/** port number for remote that has ports opened. */
int rc_port;
/** listening ports for remote control */
struct listen_port* rc_ports;
/** remote control connections management (for first worker) */
struct daemon_remote* rc;
/** ssl context for listening to dnstcp over ssl, and connecting ssl */
void* listen_sslctx, *connect_sslctx;
/** num threads allocated */
int num;
/** the worker entries */
struct worker** workers;
/** do we need to exit unbound (or is it only a reload?) */
int need_to_exit;
/** master random table ; used for port div between threads on reload*/
struct ub_randstate* rand;
/** master allocation cache */
struct alloc_cache superalloc;
/** the module environment master value, copied and changed by threads*/
struct module_env* env;
/** stack of module callbacks */
struct module_stack mods;
/** access control, which client IPs are allowed to connect */
struct acl_list* acl;
/** local authority zones */
struct local_zones* local_zones;
/** last time of statistics printout */
struct timeval time_last_stat;
/** time when daemon started */
struct timeval time_boot;
/** views structure containing view tree */
struct views* views;
#ifdef USE_DNSTAP
/** the dnstap environment master value, copied and changed by threads*/
struct dt_env* dtenv;
#endif
struct shm_main_info* shm_info;
/** response-ip set with associated actions and tags. */
struct respip_set* respip_set;
/** some response-ip tags or actions are configured if true */
int use_response_ip;
#ifdef USE_DNSCRYPT
/** the dnscrypt environment */
struct dnsc_env* dnscenv;
#endif
};
/**
* Initialize daemon structure.
* @return: The daemon structure, or NULL on error.
*/
struct daemon* daemon_init(void);
/**
* Open shared listening ports (if needed).
* The cfg member pointer must have been set for the daemon.
* @param daemon: the daemon.
* @return: false on error.
*/
int daemon_open_shared_ports(struct daemon* daemon);
/**
* Fork workers and start service.
* When the routine exits, it is no longer forked.
* @param daemon: the daemon.
*/
void daemon_fork(struct daemon* daemon);
/**
* Close off the worker thread information.
* Bring the daemon back into state ready for daemon_fork again.
* @param daemon: the daemon.
*/
void daemon_cleanup(struct daemon* daemon);
/**
* Delete workers, close listening ports.
* @param daemon: the daemon.
*/
void daemon_delete(struct daemon* daemon);
/**
* Apply config settings.
* @param daemon: the daemon.
* @param cfg: new config settings.
*/
void daemon_apply_cfg(struct daemon* daemon, struct config_file* cfg);
#endif /* DAEMON_H */

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/*
* daemon/remote.h - remote control for the unbound daemon.
*
* Copyright (c) 2008, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file contains the remote control functionality for the daemon.
* The remote control can be performed using either the commandline
* unbound-control tool, or a SSLv3/TLS capable web browser.
* The channel is secured using SSLv3 or TLSv1, and certificates.
* Both the server and the client(control tool) have their own keys.
*/
#ifndef DAEMON_REMOTE_H
#define DAEMON_REMOTE_H
#ifdef HAVE_OPENSSL_SSL_H
#include "openssl/ssl.h"
#endif
struct config_file;
struct listen_list;
struct listen_port;
struct worker;
struct comm_reply;
struct comm_point;
struct daemon_remote;
/** number of milliseconds timeout on incoming remote control handshake */
#define REMOTE_CONTROL_TCP_TIMEOUT 120000
/**
* a busy control command connection, SSL state
*/
struct rc_state {
/** the next item in list */
struct rc_state* next;
/** the commpoint */
struct comm_point* c;
/** in the handshake part */
enum { rc_none, rc_hs_read, rc_hs_write } shake_state;
#ifdef HAVE_SSL
/** the ssl state */
SSL* ssl;
#endif
/** the rc this is part of */
struct daemon_remote* rc;
};
/**
* The remote control tool state.
* The state is only created for the first thread, other threads
* are called from this thread. Only the first threads listens to
* the control port. The other threads do not, but are called on the
* command channel(pipe) from the first thread.
*/
struct daemon_remote {
/** the worker for this remote control */
struct worker* worker;
/** commpoints for accepting remote control connections */
struct listen_list* accept_list;
/* if certificates are used */
int use_cert;
/** number of active commpoints that are handling remote control */
int active;
/** max active commpoints */
int max_active;
/** current commpoints busy; should be a short list, malloced */
struct rc_state* busy_list;
#ifdef HAVE_SSL
/** the SSL context for creating new SSL streams */
SSL_CTX* ctx;
#endif
};
/**
* Create new remote control state for the daemon.
* @param cfg: config file with key file settings.
* @return new state, or NULL on failure.
*/
struct daemon_remote* daemon_remote_create(struct config_file* cfg);
/**
* remote control state to delete.
* @param rc: state to delete.
*/
void daemon_remote_delete(struct daemon_remote* rc);
/**
* remote control state to clear up. Busy and accept points are closed.
* Does not delete the rc itself, or the ssl context (with its keys).
* @param rc: state to clear.
*/
void daemon_remote_clear(struct daemon_remote* rc);
/**
* Open and create listening ports for remote control.
* @param cfg: config options.
* @return list of ports or NULL on failure.
* can be freed with listening_ports_free().
*/
struct listen_port* daemon_remote_open_ports(struct config_file* cfg);
/**
* Setup comm points for accepting remote control connections.
* @param rc: state
* @param ports: already opened ports.
* @param worker: worker with communication base. and links to command channels.
* @return false on error.
*/
int daemon_remote_open_accept(struct daemon_remote* rc,
struct listen_port* ports, struct worker* worker);
/**
* Stop accept handlers for TCP (until enabled again)
* @param rc: state
*/
void daemon_remote_stop_accept(struct daemon_remote* rc);
/**
* Stop accept handlers for TCP (until enabled again)
* @param rc: state
*/
void daemon_remote_start_accept(struct daemon_remote* rc);
/**
* Handle nonthreaded remote cmd execution.
* @param worker: this worker (the remote worker).
*/
void daemon_remote_exec(struct worker* worker);
#ifdef HAVE_SSL
/**
* Print fixed line of text over ssl connection in blocking mode
* @param ssl: print to
* @param text: the text.
* @return false on connection failure.
*/
int ssl_print_text(SSL* ssl, const char* text);
/**
* printf style printing to the ssl connection
* @param ssl: the SSL connection to print to. Blocking.
* @param format: printf style format string.
* @return success or false on a network failure.
*/
int ssl_printf(SSL* ssl, const char* format, ...)
ATTR_FORMAT(printf, 2, 3);
/**
* Read until \n is encountered
* If SSL signals EOF, the string up to then is returned (without \n).
* @param ssl: the SSL connection to read from. blocking.
* @param buf: buffer to read to.
* @param max: size of buffer.
* @return false on connection failure.
*/
int ssl_read_line(SSL* ssl, char* buf, size_t max);
#endif /* HAVE_SSL */
#endif /* DAEMON_REMOTE_H */

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/*
* daemon/stats.c - collect runtime performance indicators.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file describes the data structure used to collect runtime performance
* numbers. These 'statistics' may be of interest to the operator.
*/
#include "config.h"
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#include <sys/time.h>
#include <sys/types.h>
#include "daemon/stats.h"
#include "daemon/worker.h"
#include "daemon/daemon.h"
#include "services/mesh.h"
#include "services/outside_network.h"
#include "services/listen_dnsport.h"
#include "util/config_file.h"
#include "util/tube.h"
#include "util/timehist.h"
#include "util/net_help.h"
#include "validator/validator.h"
#include "sldns/sbuffer.h"
#include "services/cache/rrset.h"
#include "services/cache/infra.h"
#include "validator/val_kcache.h"
/** add timers and the values do not overflow or become negative */
static void
timeval_add(struct timeval* d, const struct timeval* add)
{
#ifndef S_SPLINT_S
d->tv_sec += add->tv_sec;
d->tv_usec += add->tv_usec;
if(d->tv_usec > 1000000) {
d->tv_usec -= 1000000;
d->tv_sec++;
}
#endif
}
void server_stats_init(struct server_stats* stats, struct config_file* cfg)
{
memset(stats, 0, sizeof(*stats));
stats->extended = cfg->stat_extended;
}
void server_stats_querymiss(struct server_stats* stats, struct worker* worker)
{
stats->num_queries_missed_cache++;
stats->sum_query_list_size += worker->env.mesh->all.count;
if(worker->env.mesh->all.count > stats->max_query_list_size)
stats->max_query_list_size = worker->env.mesh->all.count;
}
void server_stats_prefetch(struct server_stats* stats, struct worker* worker)
{
stats->num_queries_prefetch++;
/* changes the query list size so account that, like a querymiss */
stats->sum_query_list_size += worker->env.mesh->all.count;
if(worker->env.mesh->all.count > stats->max_query_list_size)
stats->max_query_list_size = worker->env.mesh->all.count;
}
void server_stats_log(struct server_stats* stats, struct worker* worker,
int threadnum)
{
log_info("server stats for thread %d: %u queries, "
"%u answers from cache, %u recursions, %u prefetch, %u rejected by "
"ip ratelimiting",
threadnum, (unsigned)stats->num_queries,
(unsigned)(stats->num_queries -
stats->num_queries_missed_cache),
(unsigned)stats->num_queries_missed_cache,
(unsigned)stats->num_queries_prefetch,
(unsigned)stats->num_queries_ip_ratelimited);
log_info("server stats for thread %d: requestlist max %u avg %g "
"exceeded %u jostled %u", threadnum,
(unsigned)stats->max_query_list_size,
(stats->num_queries_missed_cache+stats->num_queries_prefetch)?
(double)stats->sum_query_list_size/
(stats->num_queries_missed_cache+
stats->num_queries_prefetch) : 0.0,
(unsigned)worker->env.mesh->stats_dropped,
(unsigned)worker->env.mesh->stats_jostled);
}
/** get rrsets bogus number from validator */
static size_t
get_rrset_bogus(struct worker* worker)
{
int m = modstack_find(&worker->env.mesh->mods, "validator");
struct val_env* ve;
size_t r;
if(m == -1)
return 0;
ve = (struct val_env*)worker->env.modinfo[m];
lock_basic_lock(&ve->bogus_lock);
r = ve->num_rrset_bogus;
if(!worker->env.cfg->stat_cumulative)
ve->num_rrset_bogus = 0;
lock_basic_unlock(&ve->bogus_lock);
return r;
}
void
server_stats_compile(struct worker* worker, struct stats_info* s, int reset)
{
int i;
struct listen_list* lp;
s->svr = worker->stats;
s->mesh_num_states = worker->env.mesh->all.count;
s->mesh_num_reply_states = worker->env.mesh->num_reply_states;
s->mesh_jostled = worker->env.mesh->stats_jostled;
s->mesh_dropped = worker->env.mesh->stats_dropped;
s->mesh_replies_sent = worker->env.mesh->replies_sent;
s->mesh_replies_sum_wait = worker->env.mesh->replies_sum_wait;
s->mesh_time_median = timehist_quartile(worker->env.mesh->histogram,
0.50);
/* add in the values from the mesh */
s->svr.ans_secure += worker->env.mesh->ans_secure;
s->svr.ans_bogus += worker->env.mesh->ans_bogus;
s->svr.ans_rcode_nodata += worker->env.mesh->ans_nodata;
for(i=0; i<16; i++)
s->svr.ans_rcode[i] += worker->env.mesh->ans_rcode[i];
timehist_export(worker->env.mesh->histogram, s->svr.hist,
NUM_BUCKETS_HIST);
/* values from outside network */
s->svr.unwanted_replies = worker->back->unwanted_replies;
s->svr.qtcp_outgoing = worker->back->num_tcp_outgoing;
/* get and reset validator rrset bogus number */
s->svr.rrset_bogus = get_rrset_bogus(worker);
/* get cache sizes */
s->svr.msg_cache_count = count_slabhash_entries(worker->env.msg_cache);
s->svr.rrset_cache_count = count_slabhash_entries(&worker->env.rrset_cache->table);
s->svr.infra_cache_count = count_slabhash_entries(worker->env.infra_cache->hosts);
if(worker->env.key_cache)
s->svr.key_cache_count = count_slabhash_entries(worker->env.key_cache->slab);
else s->svr.key_cache_count = 0;
/* get tcp accept usage */
s->svr.tcp_accept_usage = 0;
for(lp = worker->front->cps; lp; lp = lp->next) {
if(lp->com->type == comm_tcp_accept)
s->svr.tcp_accept_usage += lp->com->cur_tcp_count;
}
if(reset && !worker->env.cfg->stat_cumulative) {
worker_stats_clear(worker);
}
}
void server_stats_obtain(struct worker* worker, struct worker* who,
struct stats_info* s, int reset)
{
uint8_t *reply = NULL;
uint32_t len = 0;
if(worker == who) {
/* just fill it in */
server_stats_compile(worker, s, reset);
return;
}
/* communicate over tube */
verbose(VERB_ALGO, "write stats cmd");
if(reset)
worker_send_cmd(who, worker_cmd_stats);
else worker_send_cmd(who, worker_cmd_stats_noreset);
verbose(VERB_ALGO, "wait for stats reply");
if(!tube_read_msg(worker->cmd, &reply, &len, 0))
fatal_exit("failed to read stats over cmd channel");
if(len != (uint32_t)sizeof(*s))
fatal_exit("stats on cmd channel wrong length %d %d",
(int)len, (int)sizeof(*s));
memcpy(s, reply, (size_t)len);
free(reply);
}
void server_stats_reply(struct worker* worker, int reset)
{
struct stats_info s;
server_stats_compile(worker, &s, reset);
verbose(VERB_ALGO, "write stats replymsg");
if(!tube_write_msg(worker->daemon->workers[0]->cmd,
(uint8_t*)&s, sizeof(s), 0))
fatal_exit("could not write stat values over cmd channel");
}
void server_stats_add(struct stats_info* total, struct stats_info* a)
{
total->svr.num_queries += a->svr.num_queries;
total->svr.num_queries_ip_ratelimited += a->svr.num_queries_ip_ratelimited;
total->svr.num_queries_missed_cache += a->svr.num_queries_missed_cache;
total->svr.num_queries_prefetch += a->svr.num_queries_prefetch;
total->svr.sum_query_list_size += a->svr.sum_query_list_size;
#ifdef USE_DNSCRYPT
total->svr.num_query_dnscrypt_crypted += a->svr.num_query_dnscrypt_crypted;
total->svr.num_query_dnscrypt_cert += a->svr.num_query_dnscrypt_cert;
total->svr.num_query_dnscrypt_cleartext += \
a->svr.num_query_dnscrypt_cleartext;
total->svr.num_query_dnscrypt_crypted_malformed += \
a->svr.num_query_dnscrypt_crypted_malformed;
#endif
/* the max size reached is upped to higher of both */
if(a->svr.max_query_list_size > total->svr.max_query_list_size)
total->svr.max_query_list_size = a->svr.max_query_list_size;
if(a->svr.extended) {
int i;
total->svr.qtype_big += a->svr.qtype_big;
total->svr.qclass_big += a->svr.qclass_big;
total->svr.qtcp += a->svr.qtcp;
total->svr.qtcp_outgoing += a->svr.qtcp_outgoing;
total->svr.qipv6 += a->svr.qipv6;
total->svr.qbit_QR += a->svr.qbit_QR;
total->svr.qbit_AA += a->svr.qbit_AA;
total->svr.qbit_TC += a->svr.qbit_TC;
total->svr.qbit_RD += a->svr.qbit_RD;
total->svr.qbit_RA += a->svr.qbit_RA;
total->svr.qbit_Z += a->svr.qbit_Z;
total->svr.qbit_AD += a->svr.qbit_AD;
total->svr.qbit_CD += a->svr.qbit_CD;
total->svr.qEDNS += a->svr.qEDNS;
total->svr.qEDNS_DO += a->svr.qEDNS_DO;
total->svr.ans_rcode_nodata += a->svr.ans_rcode_nodata;
total->svr.zero_ttl_responses += a->svr.zero_ttl_responses;
total->svr.ans_secure += a->svr.ans_secure;
total->svr.ans_bogus += a->svr.ans_bogus;
total->svr.rrset_bogus += a->svr.rrset_bogus;
total->svr.unwanted_replies += a->svr.unwanted_replies;
total->svr.unwanted_queries += a->svr.unwanted_queries;
total->svr.tcp_accept_usage += a->svr.tcp_accept_usage;
for(i=0; i<STATS_QTYPE_NUM; i++)
total->svr.qtype[i] += a->svr.qtype[i];
for(i=0; i<STATS_QCLASS_NUM; i++)
total->svr.qclass[i] += a->svr.qclass[i];
for(i=0; i<STATS_OPCODE_NUM; i++)
total->svr.qopcode[i] += a->svr.qopcode[i];
for(i=0; i<STATS_RCODE_NUM; i++)
total->svr.ans_rcode[i] += a->svr.ans_rcode[i];
for(i=0; i<NUM_BUCKETS_HIST; i++)
total->svr.hist[i] += a->svr.hist[i];
}
total->mesh_num_states += a->mesh_num_states;
total->mesh_num_reply_states += a->mesh_num_reply_states;
total->mesh_jostled += a->mesh_jostled;
total->mesh_dropped += a->mesh_dropped;
total->mesh_replies_sent += a->mesh_replies_sent;
timeval_add(&total->mesh_replies_sum_wait, &a->mesh_replies_sum_wait);
/* the medians are averaged together, this is not as accurate as
* taking the median over all of the data, but is good and fast
* added up here, division later*/
total->mesh_time_median += a->mesh_time_median;
}
void server_stats_insquery(struct server_stats* stats, struct comm_point* c,
uint16_t qtype, uint16_t qclass, struct edns_data* edns,
struct comm_reply* repinfo)
{
uint16_t flags = sldns_buffer_read_u16_at(c->buffer, 2);
if(qtype < STATS_QTYPE_NUM)
stats->qtype[qtype]++;
else stats->qtype_big++;
if(qclass < STATS_QCLASS_NUM)
stats->qclass[qclass]++;
else stats->qclass_big++;
stats->qopcode[ LDNS_OPCODE_WIRE(sldns_buffer_begin(c->buffer)) ]++;
if(c->type != comm_udp)
stats->qtcp++;
if(repinfo && addr_is_ip6(&repinfo->addr, repinfo->addrlen))
stats->qipv6++;
if( (flags&BIT_QR) )
stats->qbit_QR++;
if( (flags&BIT_AA) )
stats->qbit_AA++;
if( (flags&BIT_TC) )
stats->qbit_TC++;
if( (flags&BIT_RD) )
stats->qbit_RD++;
if( (flags&BIT_RA) )
stats->qbit_RA++;
if( (flags&BIT_Z) )
stats->qbit_Z++;
if( (flags&BIT_AD) )
stats->qbit_AD++;
if( (flags&BIT_CD) )
stats->qbit_CD++;
if(edns->edns_present) {
stats->qEDNS++;
if( (edns->bits & EDNS_DO) )
stats->qEDNS_DO++;
}
}
void server_stats_insrcode(struct server_stats* stats, sldns_buffer* buf)
{
if(stats->extended && sldns_buffer_limit(buf) != 0) {
int r = (int)LDNS_RCODE_WIRE( sldns_buffer_begin(buf) );
stats->ans_rcode[r] ++;
if(r == 0 && LDNS_ANCOUNT( sldns_buffer_begin(buf) ) == 0)
stats->ans_rcode_nodata ++;
}
}

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@ -1,262 +0,0 @@
/*
* daemon/stats.h - collect runtime performance indicators.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file describes the data structure used to collect runtime performance
* numbers. These 'statistics' may be of interest to the operator.
*/
#ifndef DAEMON_STATS_H
#define DAEMON_STATS_H
#include "util/timehist.h"
#include "dnscrypt/dnscrypt_config.h"
struct worker;
struct config_file;
struct comm_point;
struct comm_reply;
struct edns_data;
struct sldns_buffer;
/** number of qtype that is stored for in array */
#define STATS_QTYPE_NUM 256
/** number of qclass that is stored for in array */
#define STATS_QCLASS_NUM 256
/** number of rcodes in stats */
#define STATS_RCODE_NUM 16
/** number of opcodes in stats */
#define STATS_OPCODE_NUM 16
/** per worker statistics */
struct server_stats {
/** number of queries from clients received. */
size_t num_queries;
/** number of queries that have been dropped/ratelimited by ip. */
size_t num_queries_ip_ratelimited;
/** number of queries that had a cache-miss. */
size_t num_queries_missed_cache;
/** number of prefetch queries - cachehits with prefetch */
size_t num_queries_prefetch;
/**
* Sum of the querylistsize of the worker for
* every query that missed cache. To calculate average.
*/
size_t sum_query_list_size;
/** max value of query list size reached. */
size_t max_query_list_size;
/** Extended stats below (bool) */
int extended;
/** qtype stats */
size_t qtype[STATS_QTYPE_NUM];
/** bigger qtype values not in array */
size_t qtype_big;
/** qclass stats */
size_t qclass[STATS_QCLASS_NUM];
/** bigger qclass values not in array */
size_t qclass_big;
/** query opcodes */
size_t qopcode[STATS_OPCODE_NUM];
/** number of queries over TCP */
size_t qtcp;
/** number of outgoing queries over TCP */
size_t qtcp_outgoing;
/** number of queries over IPv6 */
size_t qipv6;
/** number of queries with QR bit */
size_t qbit_QR;
/** number of queries with AA bit */
size_t qbit_AA;
/** number of queries with TC bit */
size_t qbit_TC;
/** number of queries with RD bit */
size_t qbit_RD;
/** number of queries with RA bit */
size_t qbit_RA;
/** number of queries with Z bit */
size_t qbit_Z;
/** number of queries with AD bit */
size_t qbit_AD;
/** number of queries with CD bit */
size_t qbit_CD;
/** number of queries with EDNS OPT record */
size_t qEDNS;
/** number of queries with EDNS with DO flag */
size_t qEDNS_DO;
/** answer rcodes */
size_t ans_rcode[STATS_RCODE_NUM];
/** answers with pseudo rcode 'nodata' */
size_t ans_rcode_nodata;
/** answers that were secure (AD) */
size_t ans_secure;
/** answers that were bogus (withheld as SERVFAIL) */
size_t ans_bogus;
/** rrsets marked bogus by validator */
size_t rrset_bogus;
/** unwanted traffic received on server-facing ports */
size_t unwanted_replies;
/** unwanted traffic received on client-facing ports */
size_t unwanted_queries;
/** usage of tcp accept list */
size_t tcp_accept_usage;
/** answers served from expired cache */
size_t zero_ttl_responses;
/** histogram data exported to array
* if the array is the same size, no data is lost, and
* if all histograms are same size (is so by default) then
* adding up works well. */
size_t hist[NUM_BUCKETS_HIST];
/** number of message cache entries */
size_t msg_cache_count;
/** number of rrset cache entries */
size_t rrset_cache_count;
/** number of infra cache entries */
size_t infra_cache_count;
/** number of key cache entries */
size_t key_cache_count;
#ifdef USE_DNSCRYPT
/** number of queries that used dnscrypt */
size_t num_query_dnscrypt_crypted;
/** number of queries that queried dnscrypt certificates */
size_t num_query_dnscrypt_cert;
/** number of queries in clear text and not asking for the certificates */
size_t num_query_dnscrypt_cleartext;
/** number of malformed encrypted queries */
size_t num_query_dnscrypt_crypted_malformed;
#endif
};
/**
* Statistics to send over the control pipe when asked
* This struct is made to be memcpied, sent in binary.
*/
struct stats_info {
/** the thread stats */
struct server_stats svr;
/** mesh stats: current number of states */
size_t mesh_num_states;
/** mesh stats: current number of reply (user) states */
size_t mesh_num_reply_states;
/** mesh stats: number of reply states overwritten with a new one */
size_t mesh_jostled;
/** mesh stats: number of incoming queries dropped */
size_t mesh_dropped;
/** mesh stats: replies sent */
size_t mesh_replies_sent;
/** mesh stats: sum of waiting times for the replies */
struct timeval mesh_replies_sum_wait;
/** mesh stats: median of waiting times for replies (in sec) */
double mesh_time_median;
};
/**
* Initialize server stats to 0.
* @param stats: what to init (this is alloced by the caller).
* @param cfg: with extended statistics option.
*/
void server_stats_init(struct server_stats* stats, struct config_file* cfg);
/** add query if it missed the cache */
void server_stats_querymiss(struct server_stats* stats, struct worker* worker);
/** add query if was cached and also resulted in a prefetch */
void server_stats_prefetch(struct server_stats* stats, struct worker* worker);
/** display the stats to the log */
void server_stats_log(struct server_stats* stats, struct worker* worker,
int threadnum);
/**
* Obtain the stats info for a given thread. Uses pipe to communicate.
* @param worker: the worker that is executing (the first worker).
* @param who: on who to get the statistics info.
* @param s: the stats block to fill in.
* @param reset: if stats can be reset.
*/
void server_stats_obtain(struct worker* worker, struct worker* who,
struct stats_info* s, int reset);
/**
* Compile stats into structure for this thread worker.
* Also clears the statistics counters (if that is set by config file).
* @param worker: the worker to compile stats for, also the executing worker.
* @param s: stats block.
* @param reset: if true, depending on config stats are reset.
* if false, statistics are not reset.
*/
void server_stats_compile(struct worker* worker, struct stats_info* s,
int reset);
/**
* Send stats over comm tube in reply to query cmd
* @param worker: this worker.
* @param reset: if true, depending on config stats are reset.
* if false, statistics are not reset.
*/
void server_stats_reply(struct worker* worker, int reset);
/**
* Addup stat blocks.
* @param total: sum of the two entries.
* @param a: to add to it.
*/
void server_stats_add(struct stats_info* total, struct stats_info* a);
/**
* Add stats for this query
* @param stats: the stats
* @param c: commpoint with type and buffer.
* @param qtype: query type
* @param qclass: query class
* @param edns: edns record
* @param repinfo: reply info with remote address
*/
void server_stats_insquery(struct server_stats* stats, struct comm_point* c,
uint16_t qtype, uint16_t qclass, struct edns_data* edns,
struct comm_reply* repinfo);
/**
* Add rcode for this query.
* @param stats: the stats
* @param buf: buffer with rcode. If buffer is length0: not counted.
*/
void server_stats_insrcode(struct server_stats* stats, struct sldns_buffer* buf);
#endif /* DAEMON_STATS_H */

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@ -1,738 +0,0 @@
/*
* daemon/unbound.c - main program for unbound DNS resolver daemon.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* \file
*
* Main program to start the DNS resolver daemon.
*/
#include "config.h"
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include <sys/time.h>
#include "util/log.h"
#include "daemon/daemon.h"
#include "daemon/remote.h"
#include "util/config_file.h"
#include "util/storage/slabhash.h"
#include "services/listen_dnsport.h"
#include "services/cache/rrset.h"
#include "services/cache/infra.h"
#include "util/fptr_wlist.h"
#include "util/data/msgreply.h"
#include "util/module.h"
#include "util/net_help.h"
#include "util/ub_event.h"
#include <signal.h>
#include <fcntl.h>
#include <openssl/crypto.h>
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#ifndef S_SPLINT_S
/* splint chokes on this system header file */
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#endif /* S_SPLINT_S */
#ifdef HAVE_LOGIN_CAP_H
#include <login_cap.h>
#endif
#ifdef UB_ON_WINDOWS
# include "winrc/win_svc.h"
#endif
#ifdef HAVE_NSS
/* nss3 */
# include "nss.h"
#endif
/** print usage. */
static void usage(void)
{
const char** m;
const char *evnm="event", *evsys="", *evmethod="";
time_t t;
struct timeval now;
struct ub_event_base* base;
printf("usage: unbound [options]\n");
printf(" start unbound daemon DNS resolver.\n");
printf("-h this help\n");
printf("-c file config file to read instead of %s\n", CONFIGFILE);
printf(" file format is described in unbound.conf(5).\n");
printf("-d do not fork into the background.\n");
printf("-v verbose (more times to increase verbosity)\n");
#ifdef UB_ON_WINDOWS
printf("-w opt windows option: \n");
printf(" install, remove - manage the services entry\n");
printf(" service - used to start from services control panel\n");
#endif
printf("Version %s\n", PACKAGE_VERSION);
base = ub_default_event_base(0,&t,&now);
ub_get_event_sys(base, &evnm, &evsys, &evmethod);
printf("linked libs: %s %s (it uses %s), %s\n",
evnm, evsys, evmethod,
#ifdef HAVE_SSL
# ifdef SSLEAY_VERSION
SSLeay_version(SSLEAY_VERSION)
# else
OpenSSL_version(OPENSSL_VERSION)
# endif
#elif defined(HAVE_NSS)
NSS_GetVersion()
#elif defined(HAVE_NETTLE)
"nettle"
#endif
);
printf("linked modules:");
for(m = module_list_avail(); *m; m++)
printf(" %s", *m);
printf("\n");
printf("BSD licensed, see LICENSE in source package for details.\n");
printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
ub_event_base_free(base);
}
#ifndef unbound_testbound
int replay_var_compare(const void* ATTR_UNUSED(a), const void* ATTR_UNUSED(b))
{
log_assert(0);
return 0;
}
#endif
/** check file descriptor count */
static void
checkrlimits(struct config_file* cfg)
{
#ifndef S_SPLINT_S
#ifdef HAVE_GETRLIMIT
/* list has number of ports to listen to, ifs number addresses */
int list = ((cfg->do_udp?1:0) + (cfg->do_tcp?1 +
(int)cfg->incoming_num_tcp:0));
size_t listen_ifs = (size_t)(cfg->num_ifs==0?
((cfg->do_ip4 && !cfg->if_automatic?1:0) +
(cfg->do_ip6?1:0)):cfg->num_ifs);
size_t listen_num = list*listen_ifs;
size_t outudpnum = (size_t)cfg->outgoing_num_ports;
size_t outtcpnum = cfg->outgoing_num_tcp;
size_t misc = 4; /* logfile, pidfile, stdout... */
size_t perthread_noudp = listen_num + outtcpnum +
2/*cmdpipe*/ + 2/*libevent*/ + misc;
size_t perthread = perthread_noudp + outudpnum;
#if !defined(HAVE_PTHREAD) && !defined(HAVE_SOLARIS_THREADS)
int numthread = 1; /* it forks */
#else
int numthread = (cfg->num_threads?cfg->num_threads:1);
#endif
size_t total = numthread * perthread + misc;
size_t avail;
struct rlimit rlim;
if(total > 1024 &&
strncmp(ub_event_get_version(), "mini-event", 10) == 0) {
log_warn("too many file descriptors requested. The builtin"
"mini-event cannot handle more than 1024. Config "
"for less fds or compile with libevent");
if(numthread*perthread_noudp+15 > 1024)
fatal_exit("too much tcp. not enough fds.");
cfg->outgoing_num_ports = (int)((1024
- numthread*perthread_noudp
- 10 /* safety margin */) /numthread);
log_warn("continuing with less udp ports: %u",
cfg->outgoing_num_ports);
total = 1024;
}
if(perthread > 64 &&
strncmp(ub_event_get_version(), "winsock-event", 13) == 0) {
log_err("too many file descriptors requested. The winsock"
" event handler cannot handle more than 64 per "
" thread. Config for less fds");
if(perthread_noudp+2 > 64)
fatal_exit("too much tcp. not enough fds.");
cfg->outgoing_num_ports = (int)((64
- perthread_noudp
- 2/* safety margin */));
log_warn("continuing with less udp ports: %u",
cfg->outgoing_num_ports);
total = numthread*(perthread_noudp+
(size_t)cfg->outgoing_num_ports)+misc;
}
if(getrlimit(RLIMIT_NOFILE, &rlim) < 0) {
log_warn("getrlimit: %s", strerror(errno));
return;
}
if(rlim.rlim_cur == (rlim_t)RLIM_INFINITY)
return;
if((size_t)rlim.rlim_cur < total) {
avail = (size_t)rlim.rlim_cur;
rlim.rlim_cur = (rlim_t)(total + 10);
rlim.rlim_max = (rlim_t)(total + 10);
#ifdef HAVE_SETRLIMIT
if(setrlimit(RLIMIT_NOFILE, &rlim) < 0) {
log_warn("setrlimit: %s", strerror(errno));
#endif
log_warn("cannot increase max open fds from %u to %u",
(unsigned)avail, (unsigned)total+10);
/* check that calculation below does not underflow,
* with 15 as margin */
if(numthread*perthread_noudp+15 > avail)
fatal_exit("too much tcp. not enough fds.");
cfg->outgoing_num_ports = (int)((avail
- numthread*perthread_noudp
- 10 /* safety margin */) /numthread);
log_warn("continuing with less udp ports: %u",
cfg->outgoing_num_ports);
log_warn("increase ulimit or decrease threads, "
"ports in config to remove this warning");
return;
#ifdef HAVE_SETRLIMIT
}
#endif
verbose(VERB_ALGO, "increased limit(open files) from %u to %u",
(unsigned)avail, (unsigned)total+10);
}
#else
(void)cfg;
#endif /* HAVE_GETRLIMIT */
#endif /* S_SPLINT_S */
}
/** set default logfile identity based on value from argv[0] at startup **/
static void
log_ident_set_fromdefault(struct config_file* cfg,
const char *log_default_identity)
{
if(cfg->log_identity == NULL || cfg->log_identity[0] == 0)
log_ident_set(log_default_identity);
else
log_ident_set(cfg->log_identity);
}
/** set verbosity, check rlimits, cache settings */
static void
apply_settings(struct daemon* daemon, struct config_file* cfg,
int cmdline_verbose, int debug_mode, const char* log_default_identity)
{
/* apply if they have changed */
verbosity = cmdline_verbose + cfg->verbosity;
if (debug_mode > 1) {
cfg->use_syslog = 0;
free(cfg->logfile);
cfg->logfile = NULL;
}
daemon_apply_cfg(daemon, cfg);
checkrlimits(cfg);
if (cfg->use_systemd && cfg->do_daemonize) {
log_warn("use-systemd and do-daemonize should not be enabled at the same time");
}
log_ident_set_fromdefault(cfg, log_default_identity);
}
#ifdef HAVE_KILL
/** Read existing pid from pidfile.
* @param file: file name of pid file.
* @return: the pid from the file or -1 if none.
*/
static pid_t
readpid (const char* file)
{
int fd;
pid_t pid;
char pidbuf[32];
char* t;
ssize_t l;
if ((fd = open(file, O_RDONLY)) == -1) {
if(errno != ENOENT)
log_err("Could not read pidfile %s: %s",
file, strerror(errno));
return -1;
}
if (((l = read(fd, pidbuf, sizeof(pidbuf)))) == -1) {
if(errno != ENOENT)
log_err("Could not read pidfile %s: %s",
file, strerror(errno));
close(fd);
return -1;
}
close(fd);
/* Empty pidfile means no pidfile... */
if (l == 0) {
return -1;
}
pidbuf[sizeof(pidbuf)-1] = 0;
pid = (pid_t)strtol(pidbuf, &t, 10);
if (*t && *t != '\n') {
return -1;
}
return pid;
}
/** write pid to file.
* @param pidfile: file name of pid file.
* @param pid: pid to write to file.
*/
static void
writepid (const char* pidfile, pid_t pid)
{
FILE* f;
if ((f = fopen(pidfile, "w")) == NULL ) {
log_err("cannot open pidfile %s: %s",
pidfile, strerror(errno));
return;
}
if(fprintf(f, "%lu\n", (unsigned long)pid) < 0) {
log_err("cannot write to pidfile %s: %s",
pidfile, strerror(errno));
}
fclose(f);
}
/**
* check old pid file.
* @param pidfile: the file name of the pid file.
* @param inchroot: if pidfile is inchroot and we can thus expect to
* be able to delete it.
*/
static void
checkoldpid(char* pidfile, int inchroot)
{
pid_t old;
if((old = readpid(pidfile)) != -1) {
/* see if it is still alive */
if(kill(old, 0) == 0 || errno == EPERM)
log_warn("unbound is already running as pid %u.",
(unsigned)old);
else if(inchroot)
log_warn("did not exit gracefully last time (%u)",
(unsigned)old);
}
}
#endif /* HAVE_KILL */
/** detach from command line */
static void
detach(void)
{
#if defined(HAVE_DAEMON) && !defined(DEPRECATED_DAEMON)
/* use POSIX daemon(3) function */
if(daemon(1, 0) != 0)
fatal_exit("daemon failed: %s", strerror(errno));
#else /* no HAVE_DAEMON */
#ifdef HAVE_FORK
int fd;
/* Take off... */
switch (fork()) {
case 0:
break;
case -1:
fatal_exit("fork failed: %s", strerror(errno));
default:
/* exit interactive session */
exit(0);
}
/* detach */
#ifdef HAVE_SETSID
if(setsid() == -1)
fatal_exit("setsid() failed: %s", strerror(errno));
#endif
if ((fd = open("/dev/null", O_RDWR, 0)) != -1) {
(void)dup2(fd, STDIN_FILENO);
(void)dup2(fd, STDOUT_FILENO);
(void)dup2(fd, STDERR_FILENO);
if (fd > 2)
(void)close(fd);
}
#endif /* HAVE_FORK */
#endif /* HAVE_DAEMON */
}
/** daemonize, drop user priviliges and chroot if needed */
static void
perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
const char** cfgfile)
{
#ifdef HAVE_KILL
int pidinchroot;
#endif
#ifdef HAVE_GETPWNAM
struct passwd *pwd = NULL;
if(cfg->username && cfg->username[0]) {
if((pwd = getpwnam(cfg->username)) == NULL)
fatal_exit("user '%s' does not exist.", cfg->username);
/* endpwent below, in case we need pwd for setusercontext */
}
#endif
#ifdef UB_ON_WINDOWS
w_config_adjust_directory(cfg);
#endif
/* init syslog (as root) if needed, before daemonize, otherwise
* a fork error could not be printed since daemonize closed stderr.*/
if(cfg->use_syslog) {
log_init(cfg->logfile, cfg->use_syslog, cfg->chrootdir);
}
/* if using a logfile, we cannot open it because the logfile would
* be created with the wrong permissions, we cannot chown it because
* we cannot chown system logfiles, so we do not open at all.
* So, using a logfile, the user does not see errors unless -d is
* given to unbound on the commandline. */
/* read ssl keys while superuser and outside chroot */
#ifdef HAVE_SSL
if(!(daemon->rc = daemon_remote_create(cfg)))
fatal_exit("could not set up remote-control");
if(cfg->ssl_service_key && cfg->ssl_service_key[0]) {
if(!(daemon->listen_sslctx = listen_sslctx_create(
cfg->ssl_service_key, cfg->ssl_service_pem, NULL)))
fatal_exit("could not set up listen SSL_CTX");
}
if(!(daemon->connect_sslctx = connect_sslctx_create(NULL, NULL, NULL)))
fatal_exit("could not set up connect SSL_CTX");
#endif
#ifdef HAVE_KILL
/* true if pidfile is inside chrootdir, or nochroot */
pidinchroot = !(cfg->chrootdir && cfg->chrootdir[0]) ||
(cfg->chrootdir && cfg->chrootdir[0] &&
strncmp(cfg->pidfile, cfg->chrootdir,
strlen(cfg->chrootdir))==0);
/* check old pid file before forking */
if(cfg->pidfile && cfg->pidfile[0]) {
/* calculate position of pidfile */
if(cfg->pidfile[0] == '/')
daemon->pidfile = strdup(cfg->pidfile);
else daemon->pidfile = fname_after_chroot(cfg->pidfile,
cfg, 1);
if(!daemon->pidfile)
fatal_exit("pidfile alloc: out of memory");
checkoldpid(daemon->pidfile, pidinchroot);
}
#endif
/* daemonize because pid is needed by the writepid func */
if(!debug_mode && cfg->do_daemonize) {
detach();
}
/* write new pidfile (while still root, so can be outside chroot) */
#ifdef HAVE_KILL
if(cfg->pidfile && cfg->pidfile[0]) {
writepid(daemon->pidfile, getpid());
if(cfg->username && cfg->username[0] && cfg_uid != (uid_t)-1 &&
pidinchroot) {
# ifdef HAVE_CHOWN
if(chown(daemon->pidfile, cfg_uid, cfg_gid) == -1) {
verbose(VERB_QUERY, "cannot chown %u.%u %s: %s",
(unsigned)cfg_uid, (unsigned)cfg_gid,
daemon->pidfile, strerror(errno));
}
# endif /* HAVE_CHOWN */
}
}
#else
(void)daemon;
#endif /* HAVE_KILL */
/* Set user context */
#ifdef HAVE_GETPWNAM
if(cfg->username && cfg->username[0] && cfg_uid != (uid_t)-1) {
#ifdef HAVE_SETUSERCONTEXT
/* setusercontext does initgroups, setuid, setgid, and
* also resource limits from login config, but we
* still call setresuid, setresgid to be sure to set all uid*/
if(setusercontext(NULL, pwd, cfg_uid, (unsigned)
LOGIN_SETALL & ~LOGIN_SETUSER & ~LOGIN_SETGROUP) != 0)
log_warn("unable to setusercontext %s: %s",
cfg->username, strerror(errno));
#endif /* HAVE_SETUSERCONTEXT */
}
#endif /* HAVE_GETPWNAM */
/* box into the chroot */
#ifdef HAVE_CHROOT
if(cfg->chrootdir && cfg->chrootdir[0]) {
if(chdir(cfg->chrootdir)) {
fatal_exit("unable to chdir to chroot %s: %s",
cfg->chrootdir, strerror(errno));
}
verbose(VERB_QUERY, "chdir to %s", cfg->chrootdir);
if(chroot(cfg->chrootdir))
fatal_exit("unable to chroot to %s: %s",
cfg->chrootdir, strerror(errno));
if(chdir("/"))
fatal_exit("unable to chdir to / in chroot %s: %s",
cfg->chrootdir, strerror(errno));
verbose(VERB_QUERY, "chroot to %s", cfg->chrootdir);
if(strncmp(*cfgfile, cfg->chrootdir,
strlen(cfg->chrootdir)) == 0)
(*cfgfile) += strlen(cfg->chrootdir);
/* adjust stored pidfile for chroot */
if(daemon->pidfile && daemon->pidfile[0] &&
strncmp(daemon->pidfile, cfg->chrootdir,
strlen(cfg->chrootdir))==0) {
char* old = daemon->pidfile;
daemon->pidfile = strdup(old+strlen(cfg->chrootdir));
free(old);
if(!daemon->pidfile)
log_err("out of memory in pidfile adjust");
}
daemon->chroot = strdup(cfg->chrootdir);
if(!daemon->chroot)
log_err("out of memory in daemon chroot dir storage");
}
#else
(void)cfgfile;
#endif
/* change to working directory inside chroot */
if(cfg->directory && cfg->directory[0]) {
char* dir = cfg->directory;
if(cfg->chrootdir && cfg->chrootdir[0] &&
strncmp(dir, cfg->chrootdir,
strlen(cfg->chrootdir)) == 0)
dir += strlen(cfg->chrootdir);
if(dir[0]) {
if(chdir(dir)) {
fatal_exit("Could not chdir to %s: %s",
dir, strerror(errno));
}
verbose(VERB_QUERY, "chdir to %s", dir);
}
}
/* drop permissions after chroot, getpwnam, pidfile, syslog done*/
#ifdef HAVE_GETPWNAM
if(cfg->username && cfg->username[0] && cfg_uid != (uid_t)-1) {
# ifdef HAVE_INITGROUPS
if(initgroups(cfg->username, cfg_gid) != 0)
log_warn("unable to initgroups %s: %s",
cfg->username, strerror(errno));
# endif /* HAVE_INITGROUPS */
# ifdef HAVE_ENDPWENT
endpwent();
# endif
#ifdef HAVE_SETRESGID
if(setresgid(cfg_gid,cfg_gid,cfg_gid) != 0)
#elif defined(HAVE_SETREGID) && !defined(DARWIN_BROKEN_SETREUID)
if(setregid(cfg_gid,cfg_gid) != 0)
#else /* use setgid */
if(setgid(cfg_gid) != 0)
#endif /* HAVE_SETRESGID */
fatal_exit("unable to set group id of %s: %s",
cfg->username, strerror(errno));
#ifdef HAVE_SETRESUID
if(setresuid(cfg_uid,cfg_uid,cfg_uid) != 0)
#elif defined(HAVE_SETREUID) && !defined(DARWIN_BROKEN_SETREUID)
if(setreuid(cfg_uid,cfg_uid) != 0)
#else /* use setuid */
if(setuid(cfg_uid) != 0)
#endif /* HAVE_SETRESUID */
fatal_exit("unable to set user id of %s: %s",
cfg->username, strerror(errno));
verbose(VERB_QUERY, "drop user privileges, run as %s",
cfg->username);
}
#endif /* HAVE_GETPWNAM */
/* file logging inited after chroot,chdir,setuid is done so that
* it would succeed on SIGHUP as well */
if(!cfg->use_syslog)
log_init(cfg->logfile, cfg->use_syslog, cfg->chrootdir);
}
/**
* Run the daemon.
* @param cfgfile: the config file name.
* @param cmdline_verbose: verbosity resulting from commandline -v.
* These increase verbosity as specified in the config file.
* @param debug_mode: if set, do not daemonize.
* @param log_default_identity: Default identity to report in logs
*/
static void
run_daemon(const char* cfgfile, int cmdline_verbose, int debug_mode, const char* log_default_identity)
{
struct config_file* cfg = NULL;
struct daemon* daemon = NULL;
int done_setup = 0;
if(!(daemon = daemon_init()))
fatal_exit("alloc failure");
while(!daemon->need_to_exit) {
if(done_setup)
verbose(VERB_OPS, "Restart of %s.", PACKAGE_STRING);
else verbose(VERB_OPS, "Start of %s.", PACKAGE_STRING);
/* config stuff */
if(!(cfg = config_create()))
fatal_exit("Could not alloc config defaults");
if(!config_read(cfg, cfgfile, daemon->chroot)) {
if(errno != ENOENT)
fatal_exit("Could not read config file: %s",
cfgfile);
log_warn("Continuing with default config settings");
}
apply_settings(daemon, cfg, cmdline_verbose, debug_mode, log_default_identity);
if(!done_setup)
config_lookup_uid(cfg);
/* prepare */
if(!daemon_open_shared_ports(daemon))
fatal_exit("could not open ports");
if(!done_setup) {
perform_setup(daemon, cfg, debug_mode, &cfgfile);
done_setup = 1;
} else {
/* reopen log after HUP to facilitate log rotation */
if(!cfg->use_syslog)
log_init(cfg->logfile, 0, cfg->chrootdir);
}
/* work */
daemon_fork(daemon);
/* clean up for restart */
verbose(VERB_ALGO, "cleanup.");
daemon_cleanup(daemon);
config_delete(cfg);
}
verbose(VERB_ALGO, "Exit cleanup.");
/* this unlink may not work if the pidfile is located outside
* of the chroot/workdir or we no longer have permissions */
if(daemon->pidfile) {
int fd;
/* truncate pidfile */
fd = open(daemon->pidfile, O_WRONLY | O_TRUNC, 0644);
if(fd != -1)
close(fd);
/* delete pidfile */
unlink(daemon->pidfile);
}
daemon_delete(daemon);
}
/** getopt global, in case header files fail to declare it. */
extern int optind;
/** getopt global, in case header files fail to declare it. */
extern char* optarg;
/**
* main program. Set options given commandline arguments.
* @param argc: number of commandline arguments.
* @param argv: array of commandline arguments.
* @return: exit status of the program.
*/
int
main(int argc, char* argv[])
{
int c;
const char* cfgfile = CONFIGFILE;
const char* winopt = NULL;
const char* log_ident_default;
int cmdline_verbose = 0;
int debug_mode = 0;
#ifdef UB_ON_WINDOWS
int cmdline_cfg = 0;
#endif
log_init(NULL, 0, NULL);
log_ident_default = strrchr(argv[0],'/')?strrchr(argv[0],'/')+1:argv[0];
log_ident_set(log_ident_default);
/* parse the options */
while( (c=getopt(argc, argv, "c:dhvw:")) != -1) {
switch(c) {
case 'c':
cfgfile = optarg;
#ifdef UB_ON_WINDOWS
cmdline_cfg = 1;
#endif
break;
case 'v':
cmdline_verbose++;
verbosity++;
break;
case 'd':
debug_mode++;
break;
case 'w':
winopt = optarg;
break;
case '?':
case 'h':
default:
usage();
return 1;
}
}
argc -= optind;
argv += optind;
if(winopt) {
#ifdef UB_ON_WINDOWS
wsvc_command_option(winopt, cfgfile, cmdline_verbose,
cmdline_cfg);
#else
fatal_exit("option not supported");
#endif
}
if(argc != 0) {
usage();
return 1;
}
run_daemon(cfgfile, cmdline_verbose, debug_mode, log_ident_default);
log_init(NULL, 0, NULL); /* close logfile */
return 0;
}

1883
external/unbound/daemon/worker.c vendored
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178
external/unbound/daemon/worker.h vendored
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@ -1,178 +0,0 @@
/*
* daemon/worker.h - worker that handles a pending list of requests.
*
* Copyright (c) 2007, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file describes the worker structure that holds a list of
* pending requests and handles them.
*/
#ifndef DAEMON_WORKER_H
#define DAEMON_WORKER_H
#include "libunbound/worker.h"
#include "util/netevent.h"
#include "util/locks.h"
#include "util/alloc.h"
#include "util/data/msgreply.h"
#include "util/data/msgparse.h"
#include "daemon/stats.h"
#include "util/module.h"
#include "dnstap/dnstap.h"
struct listen_dnsport;
struct outside_network;
struct config_file;
struct daemon;
struct listen_port;
struct ub_randstate;
struct regional;
struct tube;
struct daemon_remote;
struct query_info;
/** worker commands */
enum worker_commands {
/** make the worker quit */
worker_cmd_quit,
/** obtain statistics */
worker_cmd_stats,
/** obtain statistics without statsclear */
worker_cmd_stats_noreset,
/** execute remote control command */
worker_cmd_remote
};
/**
* Structure holding working information for unbound.
* Holds globally visible information.
*/
struct worker {
/** the thread number (in daemon array). First in struct for debug. */
int thread_num;
/** global shared daemon structure */
struct daemon* daemon;
/** thread id */
ub_thread_type thr_id;
/** pipe, for commands for this worker */
struct tube* cmd;
/** the event base this worker works with */
struct comm_base* base;
/** the frontside listening interface where request events come in */
struct listen_dnsport* front;
/** the backside outside network interface to the auth servers */
struct outside_network* back;
/** ports to be used by this worker. */
int* ports;
/** number of ports for this worker */
int numports;
/** the signal handler */
struct comm_signal* comsig;
/** commpoint to listen to commands. */
struct comm_point* cmd_com;
/** timer for statistics */
struct comm_timer* stat_timer;
/** ratelimit for errors, time value */
time_t err_limit_time;
/** ratelimit for errors, packet count */
unsigned int err_limit_count;
/** random() table for this worker. */
struct ub_randstate* rndstate;
/** do we need to restart or quit (on signal) */
int need_to_exit;
/** allocation cache for this thread */
struct alloc_cache alloc;
/** per thread statistics */
struct server_stats stats;
/** thread scratch regional */
struct regional* scratchpad;
/** module environment passed to modules, changed for this thread */
struct module_env env;
#ifdef USE_DNSTAP
/** dnstap environment, changed for this thread */
struct dt_env dtenv;
#endif
};
/**
* Create the worker structure. Bare bones version, zeroed struct,
* with backpointers only. Use worker_init on it later.
* @param daemon: the daemon that this worker thread is part of.
* @param id: the thread number from 0.. numthreads-1.
* @param ports: the ports it is allowed to use, array.
* @param n: the number of ports.
* @return: the new worker or NULL on alloc failure.
*/
struct worker* worker_create(struct daemon* daemon, int id, int* ports, int n);
/**
* Initialize worker.
* Allocates event base, listens to ports
* @param worker: worker to initialize, created with worker_create.
* @param cfg: configuration settings.
* @param ports: list of shared query ports.
* @param do_sigs: if true, worker installs signal handlers.
* @return: false on error.
*/
int worker_init(struct worker* worker, struct config_file *cfg,
struct listen_port* ports, int do_sigs);
/**
* Make worker work.
*/
void worker_work(struct worker* worker);
/**
* Delete worker.
*/
void worker_delete(struct worker* worker);
/**
* Send a command to a worker. Uses blocking writes.
* @param worker: worker to send command to.
* @param cmd: command to send.
*/
void worker_send_cmd(struct worker* worker, enum worker_commands cmd);
/**
* Init worker stats - includes server_stats_init, outside network and mesh.
* @param worker: the worker to init
*/
void worker_stats_clear(struct worker* worker);
#endif /* DAEMON_WORKER_H */

854
external/unbound/dns64/dns64.c vendored
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@ -1,854 +0,0 @@
/*
* dns64/dns64.c - DNS64 module
*
* Copyright (c) 2009, Viagénie. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Viagénie nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file contains a module that performs DNS64 query processing.
*/
#include "config.h"
#include "dns64/dns64.h"
#include "services/cache/dns.h"
#include "services/cache/rrset.h"
#include "util/config_file.h"
#include "util/data/msgreply.h"
#include "util/fptr_wlist.h"
#include "util/net_help.h"
#include "util/regional.h"
/******************************************************************************
* *
* STATIC CONSTANTS *
* *
******************************************************************************/
/**
* This is the default DNS64 prefix that is used whent he dns64 module is listed
* in module-config but when the dns64-prefix variable is not present.
*/
static const char DEFAULT_DNS64_PREFIX[] = "64:ff9b::/96";
/**
* Maximum length of a domain name in a PTR query in the .in-addr.arpa tree.
*/
#define MAX_PTR_QNAME_IPV4 30
/**
* Per-query module-specific state. This is usually a dynamically-allocated
* structure, but in our case we only need to store one variable describing the
* state the query is in. So we repurpose the minfo pointer by storing an
* integer in there.
*/
enum dns64_qstate {
DNS64_INTERNAL_QUERY, /**< Internally-generated query, no DNS64
processing. */
DNS64_NEW_QUERY, /**< Query for which we're the first module in
line. */
DNS64_SUBQUERY_FINISHED /**< Query for which we generated a sub-query, and
for which this sub-query is finished. */
};
/******************************************************************************
* *
* STRUCTURES *
* *
******************************************************************************/
/**
* This structure contains module configuration information. One instance of
* this structure exists per instance of the module. Normally there is only one
* instance of the module.
*/
struct dns64_env {
/**
* DNS64 prefix address. We're using a full sockaddr instead of just an
* in6_addr because we can reuse Unbound's generic string parsing functions.
* It will always contain a sockaddr_in6, and only the sin6_addr member will
* ever be used.
*/
struct sockaddr_storage prefix_addr;
/**
* This is always sizeof(sockaddr_in6).
*/
socklen_t prefix_addrlen;
/**
* This is the CIDR length of the prefix. It needs to be between 0 and 96.
*/
int prefix_net;
};
/******************************************************************************
* *
* UTILITY FUNCTIONS *
* *
******************************************************************************/
/**
* Generic macro for swapping two variables.
*
* \param t Type of the variables. (e.g. int)
* \param a First variable.
* \param b Second variable.
*
* \warning Do not attempt something foolish such as swap(int,a++,b++)!
*/
#define swap(t,a,b) do {t x = a; a = b; b = x;} while(0)
/**
* Reverses a string.
*
* \param begin Points to the first character of the string.
* \param end Points one past the last character of the string.
*/
static void
reverse(char* begin, char* end)
{
while ( begin < --end ) {
swap(char, *begin, *end);
++begin;
}
}
/**
* Convert an unsigned integer to a string. The point of this function is that
* of being faster than sprintf().
*
* \param n The number to be converted.
* \param s The result will be written here. Must be large enough, be careful!
*
* \return The number of characters written.
*/
static int
uitoa(unsigned n, char* s)
{
char* ss = s;
do {
*ss++ = '0' + n % 10;
} while (n /= 10);
reverse(s, ss);
return ss - s;
}
/**
* Extract an IPv4 address embedded in the IPv6 address \a ipv6 at offset \a
* offset (in bits). Note that bits are not necessarily aligned on bytes so we
* need to be careful.
*
* \param ipv6 IPv6 address represented as a 128-bit array in big-endian
* order.
* \param offset Index of the MSB of the IPv4 address embedded in the IPv6
* address.
*/
static uint32_t
extract_ipv4(const uint8_t ipv6[16], const int offset)
{
uint32_t ipv4 = (uint32_t)ipv6[offset/8+0] << (24 + (offset%8))
| (uint32_t)ipv6[offset/8+1] << (16 + (offset%8))
| (uint32_t)ipv6[offset/8+2] << ( 8 + (offset%8))
| (uint32_t)ipv6[offset/8+3] << ( 0 + (offset%8));
if (offset/8+4 < 16)
ipv4 |= (uint32_t)ipv6[offset/8+4] >> (8 - offset%8);
return ipv4;
}
/**
* Builds the PTR query name corresponding to an IPv4 address. For example,
* given the number 3,464,175,361, this will build the string
* "\03206\03123\0231\011\07in-addr\04arpa".
*
* \param ipv4 IPv4 address represented as an unsigned 32-bit number.
* \param ptr The result will be written here. Must be large enough, be
* careful!
*
* \return The number of characters written.
*/
static size_t
ipv4_to_ptr(uint32_t ipv4, char ptr[MAX_PTR_QNAME_IPV4])
{
static const char IPV4_PTR_SUFFIX[] = "\07in-addr\04arpa";
int i;
char* c = ptr;
for (i = 0; i < 4; ++i) {
*c = uitoa((unsigned int)(ipv4 % 256), c + 1);
c += *c + 1;
ipv4 /= 256;
}
memmove(c, IPV4_PTR_SUFFIX, sizeof(IPV4_PTR_SUFFIX));
return c + sizeof(IPV4_PTR_SUFFIX) - ptr;
}
/**
* Converts an IPv6-related domain name string from a PTR query into an IPv6
* address represented as a 128-bit array.
*
* \param ptr The domain name. (e.g. "\011[...]\010\012\016\012\03ip6\04arpa")
* \param ipv6 The result will be written here, in network byte order.
*
* \return 1 on success, 0 on failure.
*/
static int
ptr_to_ipv6(const char* ptr, uint8_t ipv6[16])
{
int i;
for (i = 0; i < 64; i++) {
int x;
if (ptr[i++] != 1)
return 0;
if (ptr[i] >= '0' && ptr[i] <= '9') {
x = ptr[i] - '0';
} else if (ptr[i] >= 'a' && ptr[i] <= 'f') {
x = ptr[i] - 'a' + 10;
} else if (ptr[i] >= 'A' && ptr[i] <= 'F') {
x = ptr[i] - 'A' + 10;
} else {
return 0;
}
ipv6[15-i/4] |= x << (2 * ((i-1) % 4));
}
return 1;
}
/**
* Synthesize an IPv6 address based on an IPv4 address and the DNS64 prefix.
*
* \param prefix_addr DNS64 prefix address.
* \param prefix_net CIDR length of the DNS64 prefix. Must be between 0 and 96.
* \param a IPv4 address.
* \param aaaa IPv6 address. The result will be written here.
*/
static void
synthesize_aaaa(const uint8_t prefix_addr[16], int prefix_net,
const uint8_t a[4], uint8_t aaaa[16])
{
memcpy(aaaa, prefix_addr, 16);
aaaa[prefix_net/8+0] |= a[0] >> (0+prefix_net%8);
aaaa[prefix_net/8+1] |= a[0] << (8-prefix_net%8);
aaaa[prefix_net/8+1] |= a[1] >> (0+prefix_net%8);
aaaa[prefix_net/8+2] |= a[1] << (8-prefix_net%8);
aaaa[prefix_net/8+2] |= a[2] >> (0+prefix_net%8);
aaaa[prefix_net/8+3] |= a[2] << (8-prefix_net%8);
aaaa[prefix_net/8+3] |= a[3] >> (0+prefix_net%8);
if (prefix_net/8+4 < 16) /* <-- my beautiful symmetry is destroyed! */
aaaa[prefix_net/8+4] |= a[3] << (8-prefix_net%8);
}
/******************************************************************************
* *
* DNS64 MODULE FUNCTIONS *
* *
******************************************************************************/
/**
* This function applies the configuration found in the parsed configuration
* file \a cfg to this instance of the dns64 module. Currently only the DNS64
* prefix (a.k.a. Pref64) is configurable.
*
* \param dns64_env Module-specific global parameters.
* \param cfg Parsed configuration file.
*/
static int
dns64_apply_cfg(struct dns64_env* dns64_env, struct config_file* cfg)
{
verbose(VERB_ALGO, "dns64-prefix: %s", cfg->dns64_prefix);
if (!netblockstrtoaddr(cfg->dns64_prefix ? cfg->dns64_prefix :
DEFAULT_DNS64_PREFIX, 0, &dns64_env->prefix_addr,
&dns64_env->prefix_addrlen, &dns64_env->prefix_net)) {
log_err("cannot parse dns64-prefix netblock: %s", cfg->dns64_prefix);
return 0;
}
if (!addr_is_ip6(&dns64_env->prefix_addr, dns64_env->prefix_addrlen)) {
log_err("dns64_prefix is not IPv6: %s", cfg->dns64_prefix);
return 0;
}
if (dns64_env->prefix_net < 0 || dns64_env->prefix_net > 96) {
log_err("dns64-prefix length it not between 0 and 96: %s",
cfg->dns64_prefix);
return 0;
}
return 1;
}
/**
* Initializes this instance of the dns64 module.
*
* \param env Global state of all module instances.
* \param id This instance's ID number.
*/
int
dns64_init(struct module_env* env, int id)
{
struct dns64_env* dns64_env =
(struct dns64_env*)calloc(1, sizeof(struct dns64_env));
if (!dns64_env) {
log_err("malloc failure");
return 0;
}
env->modinfo[id] = (void*)dns64_env;
if (!dns64_apply_cfg(dns64_env, env->cfg)) {
log_err("dns64: could not apply configuration settings.");
return 0;
}
return 1;
}
/**
* Deinitializes this instance of the dns64 module.
*
* \param env Global state of all module instances.
* \param id This instance's ID number.
*/
void
dns64_deinit(struct module_env* env, int id)
{
if (!env)
return;
free(env->modinfo[id]);
env->modinfo[id] = NULL;
}
/**
* Handle PTR queries for IPv6 addresses. If the address belongs to the DNS64
* prefix, we must do a PTR query for the corresponding IPv4 address instead.
*
* \param qstate Query state structure.
* \param id This module instance's ID number.
*
* \return The new state of the query.
*/
static enum module_ext_state
handle_ipv6_ptr(struct module_qstate* qstate, int id)
{
struct dns64_env* dns64_env = (struct dns64_env*)qstate->env->modinfo[id];
struct module_qstate* subq = NULL;
struct query_info qinfo;
struct sockaddr_in6 sin6;
/* Convert the PTR query string to an IPv6 address. */
memset(&sin6, 0, sizeof(sin6));
sin6.sin6_family = AF_INET6;
if (!ptr_to_ipv6((char*)qstate->qinfo.qname, sin6.sin6_addr.s6_addr))
return module_wait_module; /* Let other module handle this. */
/*
* If this IPv6 address is not part of our DNS64 prefix, then we don't need
* to do anything. Let another module handle the query.
*/
if (addr_in_common((struct sockaddr_storage*)&sin6, 128,
&dns64_env->prefix_addr, dns64_env->prefix_net,
(socklen_t)sizeof(sin6)) != dns64_env->prefix_net)
return module_wait_module;
verbose(VERB_ALGO, "dns64: rewrite PTR record");
/*
* Create a new PTR query info for the domain name corresponding to the IPv4
* address corresponding to the IPv6 address corresponding to the original
* PTR query domain name.
*/
qinfo = qstate->qinfo;
if (!(qinfo.qname = regional_alloc(qstate->region, MAX_PTR_QNAME_IPV4)))
return module_error;
qinfo.qname_len = ipv4_to_ptr(extract_ipv4(sin6.sin6_addr.s6_addr,
dns64_env->prefix_net), (char*)qinfo.qname);
/* Create the new sub-query. */
fptr_ok(fptr_whitelist_modenv_attach_sub(qstate->env->attach_sub));
if(!(*qstate->env->attach_sub)(qstate, &qinfo, qstate->query_flags, 0, 0,
&subq))
return module_error;
if (subq) {
subq->curmod = id;
subq->ext_state[id] = module_state_initial;
subq->minfo[id] = NULL;
}
return module_wait_subquery;
}
static enum module_ext_state
generate_type_A_query(struct module_qstate* qstate, int id)
{
struct module_qstate* subq = NULL;
struct query_info qinfo;
verbose(VERB_ALGO, "dns64: query A record");
/* Create a new query info. */
qinfo = qstate->qinfo;
qinfo.qtype = LDNS_RR_TYPE_A;
/* Start the sub-query. */
fptr_ok(fptr_whitelist_modenv_attach_sub(qstate->env->attach_sub));
if(!(*qstate->env->attach_sub)(qstate, &qinfo, qstate->query_flags, 0,
0, &subq))
{
verbose(VERB_ALGO, "dns64: sub-query creation failed");
return module_error;
}
if (subq) {
subq->curmod = id;
subq->ext_state[id] = module_state_initial;
subq->minfo[id] = NULL;
}
return module_wait_subquery;
}
/**
* Handles the "pass" event for a query. This event is received when a new query
* is received by this module. The query may have been generated internally by
* another module, in which case we don't want to do any special processing
* (this is an interesting discussion topic), or it may be brand new, e.g.
* received over a socket, in which case we do want to apply DNS64 processing.
*
* \param qstate A structure representing the state of the query that has just
* received the "pass" event.
* \param id This module's instance ID.
*
* \return The new state of the query.
*/
static enum module_ext_state
handle_event_pass(struct module_qstate* qstate, int id)
{
if ((uintptr_t)qstate->minfo[id] == DNS64_NEW_QUERY
&& qstate->qinfo.qtype == LDNS_RR_TYPE_PTR
&& qstate->qinfo.qname_len == 74
&& !strcmp((char*)&qstate->qinfo.qname[64], "\03ip6\04arpa"))
/* Handle PTR queries for IPv6 addresses. */
return handle_ipv6_ptr(qstate, id);
if (qstate->env->cfg->dns64_synthall &&
(uintptr_t)qstate->minfo[id] == DNS64_NEW_QUERY
&& qstate->qinfo.qtype == LDNS_RR_TYPE_AAAA)
return generate_type_A_query(qstate, id);
/* We are finished when our sub-query is finished. */
if ((uintptr_t)qstate->minfo[id] == DNS64_SUBQUERY_FINISHED)
return module_finished;
/* Otherwise, pass request to next module. */
verbose(VERB_ALGO, "dns64: pass to next module");
return module_wait_module;
}
/**
* Handles the "done" event for a query. We need to analyze the response and
* maybe issue a new sub-query for the A record.
*
* \param qstate A structure representing the state of the query that has just
* received the "pass" event.
* \param id This module's instance ID.
*
* \return The new state of the query.
*/
static enum module_ext_state
handle_event_moddone(struct module_qstate* qstate, int id)
{
/*
* In many cases we have nothing special to do. From most to least common:
*
* - An internal query.
* - A query for a record type other than AAAA.
* - CD FLAG was set on querier
* - An AAAA query for which an error was returned.(qstate.return_rcode)
* -> treated as servfail thus synthesize (sec 5.1.3 6147), thus
* synthesize in (sec 5.1.2 of RFC6147).
* - A successful AAAA query with an answer.
*/
if ( (enum dns64_qstate)qstate->minfo[id] == DNS64_INTERNAL_QUERY
|| qstate->qinfo.qtype != LDNS_RR_TYPE_AAAA
|| (qstate->query_flags & BIT_CD)
|| (qstate->return_msg &&
qstate->return_msg->rep &&
reply_find_answer_rrset(&qstate->qinfo,
qstate->return_msg->rep)))
return module_finished;
/* So, this is a AAAA noerror/nodata answer */
return generate_type_A_query(qstate, id);
}
/**
* This is the module's main() function. It gets called each time a query
* receives an event which we may need to handle. We respond by updating the
* state of the query.
*
* \param qstate Structure containing the state of the query.
* \param event Event that has just been received.
* \param id This module's instance ID.
* \param outbound State of a DNS query on an authoritative server. We never do
* our own queries ourselves (other modules do it for us), so
* this is unused.
*/
void
dns64_operate(struct module_qstate* qstate, enum module_ev event, int id,
struct outbound_entry* outbound)
{
(void)outbound;
verbose(VERB_QUERY, "dns64[module %d] operate: extstate:%s event:%s",
id, strextstate(qstate->ext_state[id]),
strmodulevent(event));
log_query_info(VERB_QUERY, "dns64 operate: query", &qstate->qinfo);
switch(event) {
case module_event_new:
/* Tag this query as being new and fall through. */
qstate->minfo[id] = (void*)DNS64_NEW_QUERY;
case module_event_pass:
qstate->ext_state[id] = handle_event_pass(qstate, id);
break;
case module_event_moddone:
qstate->ext_state[id] = handle_event_moddone(qstate, id);
break;
default:
qstate->ext_state[id] = module_finished;
break;
}
}
static void
dns64_synth_aaaa_data(const struct ub_packed_rrset_key* fk,
const struct packed_rrset_data* fd,
struct ub_packed_rrset_key *dk,
struct packed_rrset_data **dd_out, struct regional *region,
struct dns64_env* dns64_env )
{
struct packed_rrset_data *dd;
size_t i;
/*
* Create synthesized AAAA RR set data. We need to allocated extra memory
* for the RRs themselves. Each RR has a length, TTL, pointer to wireformat
* data, 2 bytes of data length, and 16 bytes of IPv6 address.
*/
if(fd->count > RR_COUNT_MAX) {
*dd_out = NULL;
return; /* integer overflow protection in alloc */
}
if (!(dd = *dd_out = regional_alloc(region,
sizeof(struct packed_rrset_data)
+ fd->count * (sizeof(size_t) + sizeof(time_t) +
sizeof(uint8_t*) + 2 + 16)))) {
log_err("out of memory");
return;
}
/* Copy attributes from A RR set. */
dd->ttl = fd->ttl;
dd->count = fd->count;
dd->rrsig_count = 0;
dd->trust = fd->trust;
dd->security = fd->security;
/*
* Synthesize AAAA records. Adjust pointers in structure.
*/
dd->rr_len =
(size_t*)((uint8_t*)dd + sizeof(struct packed_rrset_data));
dd->rr_data = (uint8_t**)&dd->rr_len[dd->count];
dd->rr_ttl = (time_t*)&dd->rr_data[dd->count];
for(i = 0; i < fd->count; ++i) {
if (fd->rr_len[i] != 6 || fd->rr_data[i][0] != 0
|| fd->rr_data[i][1] != 4) {
*dd_out = NULL;
return;
}
dd->rr_len[i] = 18;
dd->rr_data[i] =
(uint8_t*)&dd->rr_ttl[dd->count] + 18*i;
dd->rr_data[i][0] = 0;
dd->rr_data[i][1] = 16;
synthesize_aaaa(
((struct sockaddr_in6*)&dns64_env->prefix_addr)->sin6_addr.s6_addr,
dns64_env->prefix_net, &fd->rr_data[i][2],
&dd->rr_data[i][2] );
dd->rr_ttl[i] = fd->rr_ttl[i];
}
/*
* Create synthesized AAAA RR set key. This is mostly just bookkeeping,
* nothing interesting here.
*/
if(!dk) {
log_err("no key");
*dd_out = NULL;
return;
}
dk->rk.dname = (uint8_t*)regional_alloc_init(region,
fk->rk.dname, fk->rk.dname_len);
if(!dk->rk.dname) {
log_err("out of memory");
*dd_out = NULL;
return;
}
dk->rk.type = htons(LDNS_RR_TYPE_AAAA);
memset(&dk->entry, 0, sizeof(dk->entry));
dk->entry.key = dk;
dk->entry.hash = rrset_key_hash(&dk->rk);
dk->entry.data = dd;
}
/**
* Synthesize an AAAA RR set from an A sub-query's answer and add it to the
* original empty response.
*
* \param id This module's instance ID.
* \param super Original AAAA query.
* \param qstate A query.
*/
static void
dns64_adjust_a(int id, struct module_qstate* super, struct module_qstate* qstate)
{
struct dns64_env* dns64_env = (struct dns64_env*)super->env->modinfo[id];
struct reply_info *rep, *cp;
size_t i, s;
struct packed_rrset_data* fd, *dd;
struct ub_packed_rrset_key* fk, *dk;
verbose(VERB_ALGO, "converting A answers to AAAA answers");
log_assert(super->region);
log_assert(qstate->return_msg);
log_assert(qstate->return_msg->rep);
/* If dns64-synthall is enabled, return_msg is not initialized */
if(!super->return_msg) {
super->return_msg = (struct dns_msg*)regional_alloc(
super->region, sizeof(struct dns_msg));
if(!super->return_msg)
return;
memset(super->return_msg, 0, sizeof(*super->return_msg));
super->return_msg->qinfo = super->qinfo;
}
rep = qstate->return_msg->rep;
/*
* Build the actual reply.
*/
cp = construct_reply_info_base(super->region, rep->flags, rep->qdcount,
rep->ttl, rep->prefetch_ttl, rep->an_numrrsets, rep->ns_numrrsets,
rep->ar_numrrsets, rep->rrset_count, rep->security);
if(!cp)
return;
/* allocate ub_key structures special or not */
if(!reply_info_alloc_rrset_keys(cp, NULL, super->region)) {
return;
}
/* copy everything and replace A by AAAA */
for(i=0; i<cp->rrset_count; i++) {
fk = rep->rrsets[i];
dk = cp->rrsets[i];
fd = (struct packed_rrset_data*)fk->entry.data;
dk->rk = fk->rk;
dk->id = fk->id;
if(i<rep->an_numrrsets && fk->rk.type == htons(LDNS_RR_TYPE_A)) {
/* also sets dk->entry.hash */
dns64_synth_aaaa_data(fk, fd, dk, &dd, super->region, dns64_env);
if(!dd)
return;
/* Delete negative AAAA record from cache stored by
* the iterator module */
rrset_cache_remove(super->env->rrset_cache, dk->rk.dname,
dk->rk.dname_len, LDNS_RR_TYPE_AAAA,
LDNS_RR_CLASS_IN, 0);
} else {
dk->entry.hash = fk->entry.hash;
dk->rk.dname = (uint8_t*)regional_alloc_init(super->region,
fk->rk.dname, fk->rk.dname_len);
if(!dk->rk.dname)
return;
s = packed_rrset_sizeof(fd);
dd = (struct packed_rrset_data*)regional_alloc_init(
super->region, fd, s);
if(!dd)
return;
}
packed_rrset_ptr_fixup(dd);
dk->entry.data = (void*)dd;
}
/* Commit changes. */
super->return_msg->rep = cp;
}
/**
* Generate a response for the original IPv6 PTR query based on an IPv4 PTR
* sub-query's response.
*
* \param qstate IPv4 PTR sub-query.
* \param super Original IPv6 PTR query.
*/
static void
dns64_adjust_ptr(struct module_qstate* qstate, struct module_qstate* super)
{
struct ub_packed_rrset_key* answer;
verbose(VERB_ALGO, "adjusting PTR reply");
/* Copy the sub-query's reply to the parent. */
if (!(super->return_msg = (struct dns_msg*)regional_alloc(super->region,
sizeof(struct dns_msg))))
return;
super->return_msg->qinfo = super->qinfo;
super->return_msg->rep = reply_info_copy(qstate->return_msg->rep, NULL,
super->region);
/*
* Adjust the domain name of the answer RR set so that it matches the
* initial query's domain name.
*/
answer = reply_find_answer_rrset(&qstate->qinfo, super->return_msg->rep);
log_assert(answer);
answer->rk.dname = super->qinfo.qname;
answer->rk.dname_len = super->qinfo.qname_len;
}
/**
* This function is called when a sub-query finishes to inform the parent query.
*
* We issue two kinds of sub-queries: PTR and A.
*
* \param qstate State of the sub-query.
* \param id This module's instance ID.
* \param super State of the super-query.
*/
void
dns64_inform_super(struct module_qstate* qstate, int id,
struct module_qstate* super)
{
log_query_info(VERB_ALGO, "dns64: inform_super, sub is",
&qstate->qinfo);
log_query_info(VERB_ALGO, "super is", &super->qinfo);
/*
* Signal that the sub-query is finished, no matter whether we are
* successful or not. This lets the state machine terminate.
*/
super->minfo[id] = (void*)DNS64_SUBQUERY_FINISHED;
/* If there is no successful answer, we're done. */
if (qstate->return_rcode != LDNS_RCODE_NOERROR
|| !qstate->return_msg
|| !qstate->return_msg->rep
|| !reply_find_answer_rrset(&qstate->qinfo,
qstate->return_msg->rep))
return;
/* Generate a response suitable for the original query. */
if (qstate->qinfo.qtype == LDNS_RR_TYPE_A) {
dns64_adjust_a(id, super, qstate);
} else {
log_assert(qstate->qinfo.qtype == LDNS_RR_TYPE_PTR);
dns64_adjust_ptr(qstate, super);
}
/* Store the generated response in cache. */
if (!super->no_cache_store &&
!dns_cache_store(super->env, &super->qinfo, super->return_msg->rep,
0, 0, 0, NULL, super->query_flags))
log_err("out of memory");
}
/**
* Clear module-specific data from query state. Since we do not allocate memory,
* it's just a matter of setting a pointer to NULL.
*
* \param qstate Query state.
* \param id This module's instance ID.
*/
void
dns64_clear(struct module_qstate* qstate, int id)
{
qstate->minfo[id] = NULL;
}
/**
* Returns the amount of global memory that this module uses, not including
* per-query data.
*
* \param env Module environment.
* \param id This module's instance ID.
*/
size_t
dns64_get_mem(struct module_env* env, int id)
{
struct dns64_env* dns64_env = (struct dns64_env*)env->modinfo[id];
if (!dns64_env)
return 0;
return sizeof(*dns64_env);
}
/**
* The dns64 function block.
*/
static struct module_func_block dns64_block = {
"dns64",
&dns64_init, &dns64_deinit, &dns64_operate, &dns64_inform_super,
&dns64_clear, &dns64_get_mem
};
/**
* Function for returning the above function block.
*/
struct module_func_block *
dns64_get_funcblock(void)
{
return &dns64_block;
}

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@ -1,71 +0,0 @@
/*
* dns64/dns64.h - DNS64 module
*
* Copyright (c) 2009, Viagénie. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
*
* This file contains a module that performs DNS64 query processing.
*/
#ifndef DNS64_DNS64_H
#define DNS64_DNS64_H
#include "util/module.h"
/**
* Get the dns64 function block.
* @return: function block with function pointers to dns64 methods.
*/
struct module_func_block *dns64_get_funcblock(void);
/** dns64 init */
int dns64_init(struct module_env* env, int id);
/** dns64 deinit */
void dns64_deinit(struct module_env* env, int id);
/** dns64 operate on a query */
void dns64_operate(struct module_qstate* qstate, enum module_ev event, int id,
struct outbound_entry* outbound);
void dns64_inform_super(struct module_qstate* qstate, int id,
struct module_qstate* super);
/** dns64 cleanup query state */
void dns64_clear(struct module_qstate* qstate, int id);
/** dns64 alloc size routine */
size_t dns64_get_mem(struct module_env* env, int id);
#endif /* DNS64_DNS64_H */

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#ifndef UNBOUND_DNSCRYPT_CERT_H
#define UNBOUND_DNSCRYPT_CERT_H
/**
* \file
* certificate type for dnscrypt for use in other header files
*/
#include <sodium.h>
#define CERT_MAGIC_CERT "DNSC"
#define CERT_MAJOR_VERSION 1
#define CERT_MINOR_VERSION 0
#define CERT_OLD_MAGIC_HEADER "7PYqwfzt"
#define CERT_FILE_EXPIRE_DAYS 365
struct SignedCert {
uint8_t magic_cert[4];
uint8_t version_major[2];
uint8_t version_minor[2];
// Signed Content
uint8_t server_publickey[crypto_box_PUBLICKEYBYTES];
uint8_t magic_query[8];
uint8_t serial[4];
uint8_t ts_begin[4];
uint8_t ts_end[4];
uint8_t end[64];
};
#endif

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#include "config.h"
#include <stdlib.h>
#include <fcntl.h>
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#include <sys/time.h>
#include <sys/types.h>
#include "sldns/sbuffer.h"
#include "util/config_file.h"
#include "util/net_help.h"
#include "util/netevent.h"
#include "util/log.h"
#include "dnscrypt/cert.h"
#include "dnscrypt/dnscrypt.h"
#include <ctype.h>
/**
* \file
* dnscrypt functions for encrypting DNS packets.
*/
#define DNSCRYPT_QUERY_BOX_OFFSET \
(DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_PUBLICKEYBYTES + crypto_box_HALF_NONCEBYTES)
// 8 bytes: magic header (CERT_MAGIC_HEADER)
// 12 bytes: the client's nonce
// 12 bytes: server nonce extension
// 16 bytes: Poly1305 MAC (crypto_box_ZEROBYTES - crypto_box_BOXZEROBYTES)
#define DNSCRYPT_REPLY_BOX_OFFSET \
(DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_HALF_NONCEBYTES + crypto_box_HALF_NONCEBYTES)
/**
* Decrypt a query using the keypair that was found using dnsc_find_keypair.
* The client nonce will be extracted from the encrypted query and stored in
* client_nonce, a shared secret will be computed and stored in nmkey and the
* buffer will be decrypted inplace.
* \param[in] keypair the keypair that matches this encrypted query.
* \param[in] client_nonce where the client nonce will be stored.
* \param[in] nmkey where the shared secret key will be written.
* \param[in] buffer the encrypted buffer.
* \return 0 on success.
*/
static int
dnscrypt_server_uncurve(const KeyPair *keypair,
uint8_t client_nonce[crypto_box_HALF_NONCEBYTES],
uint8_t nmkey[crypto_box_BEFORENMBYTES],
struct sldns_buffer* buffer)
{
size_t len = sldns_buffer_limit(buffer);
uint8_t *const buf = sldns_buffer_begin(buffer);
uint8_t nonce[crypto_box_NONCEBYTES];
struct dnscrypt_query_header *query_header;
if (len <= DNSCRYPT_QUERY_HEADER_SIZE) {
return -1;
}
query_header = (struct dnscrypt_query_header *)buf;
memcpy(nmkey, query_header->publickey, crypto_box_PUBLICKEYBYTES);
if (crypto_box_beforenm(nmkey, nmkey, keypair->crypt_secretkey) != 0) {
return -1;
}
memcpy(nonce, query_header->nonce, crypto_box_HALF_NONCEBYTES);
memset(nonce + crypto_box_HALF_NONCEBYTES, 0, crypto_box_HALF_NONCEBYTES);
sldns_buffer_set_at(buffer,
DNSCRYPT_QUERY_BOX_OFFSET - crypto_box_BOXZEROBYTES,
0, crypto_box_BOXZEROBYTES);
if (crypto_box_open_afternm
(buf + DNSCRYPT_QUERY_BOX_OFFSET - crypto_box_BOXZEROBYTES,
buf + DNSCRYPT_QUERY_BOX_OFFSET - crypto_box_BOXZEROBYTES,
len - DNSCRYPT_QUERY_BOX_OFFSET + crypto_box_BOXZEROBYTES, nonce,
nmkey) != 0) {
return -1;
}
while (*sldns_buffer_at(buffer, --len) == 0)
;
if (*sldns_buffer_at(buffer, len) != 0x80) {
return -1;
}
memcpy(client_nonce, nonce, crypto_box_HALF_NONCEBYTES);
memmove(sldns_buffer_begin(buffer),
sldns_buffer_at(buffer, DNSCRYPT_QUERY_HEADER_SIZE),
len - DNSCRYPT_QUERY_HEADER_SIZE);
sldns_buffer_set_position(buffer, 0);
sldns_buffer_set_limit(buffer, len - DNSCRYPT_QUERY_HEADER_SIZE);
return 0;
}
/**
* Add random padding to a buffer, according to a client nonce.
* The length has to depend on the query in order to avoid reply attacks.
*
* @param buf a buffer
* @param len the initial size of the buffer
* @param max_len the maximum size
* @param nonce a nonce, made of the client nonce repeated twice
* @param secretkey
* @return the new size, after padding
*/
size_t
dnscrypt_pad(uint8_t *buf, const size_t len, const size_t max_len,
const uint8_t *nonce, const uint8_t *secretkey)
{
uint8_t *buf_padding_area = buf + len;
size_t padded_len;
uint32_t rnd;
// no padding
if (max_len < len + DNSCRYPT_MIN_PAD_LEN)
return len;
assert(nonce[crypto_box_HALF_NONCEBYTES] == nonce[0]);
crypto_stream((unsigned char *)&rnd, (unsigned long long)sizeof(rnd), nonce,
secretkey);
padded_len =
len + DNSCRYPT_MIN_PAD_LEN + rnd % (max_len - len -
DNSCRYPT_MIN_PAD_LEN + 1);
padded_len += DNSCRYPT_BLOCK_SIZE - padded_len % DNSCRYPT_BLOCK_SIZE;
if (padded_len > max_len)
padded_len = max_len;
memset(buf_padding_area, 0, padded_len - len);
*buf_padding_area = 0x80;
return padded_len;
}
uint64_t
dnscrypt_hrtime(void)
{
struct timeval tv;
uint64_t ts = (uint64_t)0U;
int ret;
ret = gettimeofday(&tv, NULL);
if (ret == 0) {
ts = (uint64_t)tv.tv_sec * 1000000U + (uint64_t)tv.tv_usec;
} else {
log_err("gettimeofday: %s", strerror(errno));
}
return ts;
}
/**
* Add the server nonce part to once.
* The nonce is made half of client nonce and the seconf half of the server
* nonce, both of them of size crypto_box_HALF_NONCEBYTES.
* \param[in] nonce: a uint8_t* of size crypto_box_NONCEBYTES
*/
static void
add_server_nonce(uint8_t *nonce)
{
uint64_t ts;
uint64_t tsn;
uint32_t suffix;
ts = dnscrypt_hrtime();
// TODO? dnscrypt-wrapper does some logic with context->nonce_ts_last
// unclear if we really need it, so skipping it for now.
tsn = (ts << 10) | (randombytes_random() & 0x3ff);
#if (BYTE_ORDER == LITTLE_ENDIAN)
tsn =
(((uint64_t)htonl((uint32_t)tsn)) << 32) | htonl((uint32_t)(tsn >> 32));
#endif
memcpy(nonce + crypto_box_HALF_NONCEBYTES, &tsn, 8);
suffix = randombytes_random();
memcpy(nonce + crypto_box_HALF_NONCEBYTES + 8, &suffix, 4);
}
/**
* Encrypt a reply using the keypair that was used with the query.
* The client nonce will be extracted from the encrypted query and stored in
* The buffer will be encrypted inplace.
* \param[in] keypair the keypair that matches this encrypted query.
* \param[in] client_nonce client nonce used during the query
* \param[in] nmkey shared secret key used during the query.
* \param[in] buffer the buffer where to encrypt the reply.
* \param[in] udp if whether or not it is a UDP query.
* \param[in] max_udp_size configured max udp size.
* \return 0 on success.
*/
static int
dnscrypt_server_curve(const KeyPair *keypair,
uint8_t client_nonce[crypto_box_HALF_NONCEBYTES],
uint8_t nmkey[crypto_box_BEFORENMBYTES],
struct sldns_buffer* buffer,
uint8_t udp,
size_t max_udp_size)
{
size_t dns_reply_len = sldns_buffer_limit(buffer);
size_t max_len = dns_reply_len + DNSCRYPT_MAX_PADDING + DNSCRYPT_REPLY_HEADER_SIZE;
size_t max_reply_size = max_udp_size - 20U - 8U;
uint8_t nonce[crypto_box_NONCEBYTES];
uint8_t *boxed;
uint8_t *const buf = sldns_buffer_begin(buffer);
size_t len = sldns_buffer_limit(buffer);
if(udp){
if (max_len > max_reply_size)
max_len = max_reply_size;
}
memcpy(nonce, client_nonce, crypto_box_HALF_NONCEBYTES);
memcpy(nonce + crypto_box_HALF_NONCEBYTES, client_nonce,
crypto_box_HALF_NONCEBYTES);
boxed = buf + DNSCRYPT_REPLY_BOX_OFFSET;
memmove(boxed + crypto_box_MACBYTES, buf, len);
len = dnscrypt_pad(boxed + crypto_box_MACBYTES, len,
max_len - DNSCRYPT_REPLY_HEADER_SIZE, nonce,
keypair->crypt_secretkey);
sldns_buffer_set_at(buffer,
DNSCRYPT_REPLY_BOX_OFFSET - crypto_box_BOXZEROBYTES,
0, crypto_box_ZEROBYTES);
// add server nonce extension
add_server_nonce(nonce);
if (crypto_box_afternm
(boxed - crypto_box_BOXZEROBYTES, boxed - crypto_box_BOXZEROBYTES,
len + crypto_box_ZEROBYTES, nonce, nmkey) != 0) {
return -1;
}
sldns_buffer_write_at(buffer, 0, DNSCRYPT_MAGIC_RESPONSE, DNSCRYPT_MAGIC_HEADER_LEN);
sldns_buffer_write_at(buffer, DNSCRYPT_MAGIC_HEADER_LEN, nonce, crypto_box_NONCEBYTES);
sldns_buffer_set_limit(buffer, len + DNSCRYPT_REPLY_HEADER_SIZE);
return 0;
}
/**
* Read the content of fname into buf.
* \param[in] fname name of the file to read.
* \param[in] buf the buffer in which to read the content of the file.
* \param[in] count number of bytes to read.
* \return 0 on success.
*/
static int
dnsc_read_from_file(char *fname, char *buf, size_t count)
{
int fd;
fd = open(fname, O_RDONLY);
if (fd == -1) {
return -1;
}
if (read(fd, buf, count) != (ssize_t)count) {
close(fd);
return -2;
}
close(fd);
return 0;
}
/**
* Parse certificates files provided by the configuration and load them into
* dnsc_env.
* \param[in] env the dnsc_env structure to load the certs into.
* \param[in] cfg the configuration.
* \return the number of certificates loaded.
*/
static int
dnsc_parse_certs(struct dnsc_env *env, struct config_file *cfg)
{
struct config_strlist *head;
size_t signed_cert_id;
env->signed_certs_count = 0U;
for (head = cfg->dnscrypt_provider_cert; head; head = head->next) {
env->signed_certs_count++;
}
env->signed_certs = sodium_allocarray(env->signed_certs_count,
sizeof *env->signed_certs);
signed_cert_id = 0U;
for(head = cfg->dnscrypt_provider_cert; head; head = head->next, signed_cert_id++) {
if(dnsc_read_from_file(
head->str,
(char *)(env->signed_certs + signed_cert_id),
sizeof(struct SignedCert)) != 0) {
fatal_exit("dnsc_parse_certs: failed to load %s: %s", head->str, strerror(errno));
}
verbose(VERB_OPS, "Loaded cert %s", head->str);
}
return signed_cert_id;
}
/**
* Helper function to convert a binary key into a printable fingerprint.
* \param[in] fingerprint the buffer in which to write the printable key.
* \param[in] key the key to convert.
*/
void
dnsc_key_to_fingerprint(char fingerprint[80U], const uint8_t * const key)
{
const size_t fingerprint_size = 80U;
size_t fingerprint_pos = (size_t) 0U;
size_t key_pos = (size_t) 0U;
for (;;) {
assert(fingerprint_size > fingerprint_pos);
snprintf(&fingerprint[fingerprint_pos],
fingerprint_size - fingerprint_pos, "%02X%02X",
key[key_pos], key[key_pos + 1U]);
key_pos += 2U;
if (key_pos >= crypto_box_PUBLICKEYBYTES) {
break;
}
fingerprint[fingerprint_pos + 4U] = ':';
fingerprint_pos += 5U;
}
}
/**
* Find the keypair matching a DNSCrypt query.
* \param[in] dnscenv The DNSCrypt enviroment, which contains the list of keys
* supported by the server.
* \param[in] buffer The encrypted DNS query.
* \return a KeyPair * if we found a key pair matching the query, NULL otherwise.
*/
static const KeyPair *
dnsc_find_keypair(struct dnsc_env* dnscenv, struct sldns_buffer* buffer)
{
const KeyPair *keypairs = dnscenv->keypairs;
struct dnscrypt_query_header *dnscrypt_header;
size_t i;
if (sldns_buffer_limit(buffer) < DNSCRYPT_QUERY_HEADER_SIZE) {
return NULL;
}
dnscrypt_header = (struct dnscrypt_query_header *)sldns_buffer_begin(buffer);
for (i = 0U; i < dnscenv->keypairs_count; i++) {
if (memcmp(keypairs[i].crypt_publickey, dnscrypt_header->magic_query,
DNSCRYPT_MAGIC_HEADER_LEN) == 0) {
return &keypairs[i];
}
}
return NULL;
}
/**
* Insert local-zone and local-data into configuration.
* In order to be able to serve certs over TXT, we can reuse the local-zone and
* local-data config option. The zone and qname are infered from the
* provider_name and the content of the TXT record from the certificate content.
* returns the number of certtificate TXT record that were loaded.
* < 0 in case of error.
*/
static int
dnsc_load_local_data(struct dnsc_env* dnscenv, struct config_file *cfg)
{
size_t i, j;
// Insert 'local-zone: "2.dnscrypt-cert.example.com" deny'
if(!cfg_str2list_insert(&cfg->local_zones,
strdup(dnscenv->provider_name),
strdup("deny"))) {
log_err("Could not load dnscrypt local-zone: %s deny",
dnscenv->provider_name);
return -1;
}
// Add local data entry of type:
// 2.dnscrypt-cert.example.com 86400 IN TXT "DNSC......"
for(i=0; i<dnscenv->signed_certs_count; i++) {
const char *ttl_class_type = " 86400 IN TXT \"";
struct SignedCert *cert = dnscenv->signed_certs + i;
uint16_t rrlen = strlen(dnscenv->provider_name) +
strlen(ttl_class_type) +
4 * sizeof(struct SignedCert) + // worst case scenario
1 + // trailing double quote
1;
char *rr = malloc(rrlen);
if(!rr) {
log_err("Could not allocate memory");
return -2;
}
snprintf(rr, rrlen - 1, "%s 86400 IN TXT \"", dnscenv->provider_name);
for(j=0; j<sizeof(struct SignedCert); j++) {
int c = (int)*((const uint8_t *) cert + j);
if (isprint(c) && c != '"' && c != '\\') {
snprintf(rr + strlen(rr), rrlen - 1 - strlen(rr), "%c", c);
} else {
snprintf(rr + strlen(rr), rrlen - 1 - strlen(rr), "\\%03d", c);
}
}
snprintf(rr + strlen(rr), rrlen - 1 - strlen(rr), "\"");
cfg_strlist_insert(&cfg->local_data, strdup(rr));
free(rr);
}
return dnscenv->signed_certs_count;
}
/**
* Parse the secret key files from `dnscrypt-secret-key` config and populates
* a list of secret/public keys supported by dnscrypt listener.
* \param[in] env The dnsc_env structure which will hold the keypairs.
* \param[in] cfg The config with the secret key file paths.
*/
static int
dnsc_parse_keys(struct dnsc_env *env, struct config_file *cfg)
{
struct config_strlist *head;
size_t keypair_id;
env->keypairs_count = 0U;
for (head = cfg->dnscrypt_secret_key; head; head = head->next) {
env->keypairs_count++;
}
env->keypairs = sodium_allocarray(env->keypairs_count,
sizeof *env->keypairs);
keypair_id = 0U;
for(head = cfg->dnscrypt_secret_key; head; head = head->next, keypair_id++) {
char fingerprint[80];
if(dnsc_read_from_file(
head->str,
(char *)(env->keypairs[keypair_id].crypt_secretkey),
crypto_box_SECRETKEYBYTES) != 0) {
fatal_exit("dnsc_parse_keys: failed to load %s: %s", head->str, strerror(errno));
}
verbose(VERB_OPS, "Loaded key %s", head->str);
if (crypto_scalarmult_base(env->keypairs[keypair_id].crypt_publickey,
env->keypairs[keypair_id].crypt_secretkey) != 0) {
fatal_exit("dnsc_parse_keys: could not generate public key from %s", head->str);
}
dnsc_key_to_fingerprint(fingerprint, env->keypairs[keypair_id].crypt_publickey);
verbose(VERB_OPS, "Crypt public key fingerprint for %s: %s", head->str, fingerprint);
}
return keypair_id;
}
/**
* #########################################################
* ############# Publicly accessible functions #############
* #########################################################
*/
int
dnsc_handle_curved_request(struct dnsc_env* dnscenv,
struct comm_reply* repinfo)
{
struct comm_point* c = repinfo->c;
repinfo->is_dnscrypted = 0;
if( !c->dnscrypt ) {
return 1;
}
// Attempt to decrypt the query. If it is not crypted, we may still need
// to serve the certificate.
verbose(VERB_ALGO, "handle request called on DNSCrypt socket");
if ((repinfo->keypair = dnsc_find_keypair(dnscenv, c->buffer)) != NULL) {
if(dnscrypt_server_uncurve(repinfo->keypair,
repinfo->client_nonce,
repinfo->nmkey,
c->buffer) != 0){
verbose(VERB_ALGO, "dnscrypt: Failed to uncurve");
comm_point_drop_reply(repinfo);
return 0;
}
repinfo->is_dnscrypted = 1;
sldns_buffer_rewind(c->buffer);
}
return 1;
}
int
dnsc_handle_uncurved_request(struct comm_reply *repinfo)
{
if(!repinfo->c->dnscrypt) {
return 1;
}
sldns_buffer_copy(repinfo->c->dnscrypt_buffer, repinfo->c->buffer);
if(!repinfo->is_dnscrypted) {
return 1;
}
if(dnscrypt_server_curve(repinfo->keypair,
repinfo->client_nonce,
repinfo->nmkey,
repinfo->c->dnscrypt_buffer,
repinfo->c->type == comm_udp,
repinfo->max_udp_size) != 0){
verbose(VERB_ALGO, "dnscrypt: Failed to curve cached missed answer");
comm_point_drop_reply(repinfo);
return 0;
}
return 1;
}
struct dnsc_env *
dnsc_create(void)
{
struct dnsc_env *env;
if (sodium_init() == -1) {
fatal_exit("dnsc_create: could not initialize libsodium.");
}
env = (struct dnsc_env *) calloc(1, sizeof(struct dnsc_env));
return env;
}
int
dnsc_apply_cfg(struct dnsc_env *env, struct config_file *cfg)
{
if(dnsc_parse_certs(env, cfg) <= 0) {
fatal_exit("dnsc_apply_cfg: no cert file loaded");
}
if(dnsc_parse_keys(env, cfg) <= 0) {
fatal_exit("dnsc_apply_cfg: no key file loaded");
}
randombytes_buf(env->hash_key, sizeof env->hash_key);
env->provider_name = cfg->dnscrypt_provider;
if(dnsc_load_local_data(env, cfg) <= 0) {
fatal_exit("dnsc_apply_cfg: could not load local data");
}
return 0;
}

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#ifndef UNBOUND_DNSCRYPT_H
#define UNBOUND_DNSCRYPT_H
/**
* \file
* dnscrypt functions for encrypting DNS packets.
*/
#include "dnscrypt/dnscrypt_config.h"
#ifdef USE_DNSCRYPT
#define DNSCRYPT_MAGIC_HEADER_LEN 8U
#define DNSCRYPT_MAGIC_RESPONSE "r6fnvWj8"
#ifndef DNSCRYPT_MAX_PADDING
# define DNSCRYPT_MAX_PADDING 256U
#endif
#ifndef DNSCRYPT_BLOCK_SIZE
# define DNSCRYPT_BLOCK_SIZE 64U
#endif
#ifndef DNSCRYPT_MIN_PAD_LEN
# define DNSCRYPT_MIN_PAD_LEN 8U
#endif
#define crypto_box_HALF_NONCEBYTES (crypto_box_NONCEBYTES / 2U)
#include "config.h"
#include "dnscrypt/cert.h"
#define DNSCRYPT_QUERY_HEADER_SIZE \
(DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_PUBLICKEYBYTES + crypto_box_HALF_NONCEBYTES + crypto_box_MACBYTES)
#define DNSCRYPT_RESPONSE_HEADER_SIZE \
(DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_NONCEBYTES + crypto_box_MACBYTES)
#define DNSCRYPT_REPLY_HEADER_SIZE \
(DNSCRYPT_MAGIC_HEADER_LEN + crypto_box_HALF_NONCEBYTES * 2 + crypto_box_MACBYTES)
struct sldns_buffer;
struct config_file;
struct comm_reply;
typedef struct KeyPair_ {
uint8_t crypt_publickey[crypto_box_PUBLICKEYBYTES];
uint8_t crypt_secretkey[crypto_box_SECRETKEYBYTES];
} KeyPair;
struct dnsc_env {
struct SignedCert *signed_certs;
size_t signed_certs_count;
uint8_t provider_publickey[crypto_sign_ed25519_PUBLICKEYBYTES];
uint8_t provider_secretkey[crypto_sign_ed25519_SECRETKEYBYTES];
KeyPair *keypairs;
size_t keypairs_count;
uint64_t nonce_ts_last;
unsigned char hash_key[crypto_shorthash_KEYBYTES];
char * provider_name;
};
struct dnscrypt_query_header {
uint8_t magic_query[DNSCRYPT_MAGIC_HEADER_LEN];
uint8_t publickey[crypto_box_PUBLICKEYBYTES];
uint8_t nonce[crypto_box_HALF_NONCEBYTES];
uint8_t mac[crypto_box_MACBYTES];
};
/**
* Initialize DNSCrypt enviroment.
* Initialize sodium library and allocate the dnsc_env structure.
* \return an uninitialized struct dnsc_env.
*/
struct dnsc_env * dnsc_create(void);
/**
* Apply configuration.
* Read certificates and secret keys from configuration. Initialize hashkey and
* provider name as well as loading cert TXT records.
* In case of issue applying configuration, this function fatals.
* \param[in] env the struct dnsc_env to populate.
* \param[in] cfg the config_file struct with dnscrypt options.
* \return 0 on success.
*/
int dnsc_apply_cfg(struct dnsc_env *env, struct config_file *cfg);
/**
* handle a crypted dnscrypt request.
* Determine wether or not a query is coming over the dnscrypt listener and
* attempt to uncurve it or detect if it is a certificate query.
* return 0 in case of failure.
*/
int dnsc_handle_curved_request(struct dnsc_env* dnscenv,
struct comm_reply* repinfo);
/**
* handle an unencrypted dnscrypt request.
* Determine wether or not a query is going over the dnscrypt channel and
* attempt to curve it unless it was not crypted like when it is a
* certificate query.
* \return 0 in case of failure.
*/
int dnsc_handle_uncurved_request(struct comm_reply *repinfo);
#endif /* USE_DNSCRYPT */
#endif

25
external/unbound/dnscrypt/dnscrypt.m4 vendored
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@ -1,25 +0,0 @@
# dnscrypt.m4
# dnsc_DNSCRYPT([action-if-true], [action-if-false])
# --------------------------------------------------------------------------
# Check for required dnscrypt libraries and add dnscrypt configure args.
AC_DEFUN([dnsc_DNSCRYPT],
[
AC_ARG_ENABLE([dnscrypt],
AS_HELP_STRING([--enable-dnscrypt],
[Enable dnscrypt support (requires libsodium)]),
[opt_dnscrypt=$enableval], [opt_dnscrypt=no])
if test "x$opt_dnscrypt" != "xno"; then
AC_ARG_WITH([libsodium], AC_HELP_STRING([--with-libsodium=path],
[Path where libsodium is installed, for dnscrypt]), [
CFLAGS="$CFLAGS -I$withval/include"
LDFLAGS="$LDFLAGS -L$withval/lib"
])
AC_SEARCH_LIBS([sodium_init], [sodium], [],
AC_MSG_ERROR([The sodium library was not found. Please install sodium!]))
$1
else
$2
fi
])

17
external/unbound/dnscrypt/dnscrypt_config.h vendored
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@ -1,17 +0,0 @@
#ifndef UNBOUND_DNSCRYPT_CONFIG_H
#define UNBOUND_DNSCRYPT_CONFIG_H
/*
* Process this file (dnscrypt_config.h.in) with AC_CONFIG_FILES to generate
* dnscrypt_config.h.
*
* This file exists so that USE_DNSCRYPT can be used without including config.h.
*/
#if 0 /* ENABLE_DNSCRYPT */
# ifndef USE_DNSCRYPT
# define USE_DNSCRYPT 1
# endif
#endif
#endif /* UNBOUND_DNSCRYPT_CONFIG_H */

518
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@ -1,518 +0,0 @@
/* dnstap support for Unbound */
/*
* Copyright (c) 2013-2014, Farsight Security, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "dnstap/dnstap_config.h"
#ifdef USE_DNSTAP
#include "config.h"
#include <string.h>
#include <sys/time.h>
#include "sldns/sbuffer.h"
#include "util/config_file.h"
#include "util/net_help.h"
#include "util/netevent.h"
#include "util/log.h"
#include <fstrm.h>
#include <protobuf-c/protobuf-c.h>
#include "dnstap/dnstap.h"
#include "dnstap/dnstap.pb-c.h"
#define DNSTAP_CONTENT_TYPE "protobuf:dnstap.Dnstap"
#define DNSTAP_INITIAL_BUF_SIZE 256
struct dt_msg {
void *buf;
size_t len_buf;
Dnstap__Dnstap d;
Dnstap__Message m;
};
static int
dt_pack(const Dnstap__Dnstap *d, void **buf, size_t *sz)
{
ProtobufCBufferSimple sbuf;
memset(&sbuf, 0, sizeof(sbuf));
sbuf.base.append = protobuf_c_buffer_simple_append;
sbuf.len = 0;
sbuf.alloced = DNSTAP_INITIAL_BUF_SIZE;
sbuf.data = malloc(sbuf.alloced);
if (sbuf.data == NULL)
return 0;
sbuf.must_free_data = 1;
*sz = dnstap__dnstap__pack_to_buffer(d, (ProtobufCBuffer *) &sbuf);
if (sbuf.data == NULL)
return 0;
*buf = sbuf.data;
return 1;
}
static void
dt_send(const struct dt_env *env, void *buf, size_t len_buf)
{
fstrm_res res;
if (!buf)
return;
res = fstrm_iothr_submit(env->iothr, env->ioq, buf, len_buf,
fstrm_free_wrapper, NULL);
if (res != fstrm_res_success)
free(buf);
}
static void
dt_msg_init(const struct dt_env *env,
struct dt_msg *dm,
Dnstap__Message__Type mtype)
{
memset(dm, 0, sizeof(*dm));
dm->d.base.descriptor = &dnstap__dnstap__descriptor;
dm->m.base.descriptor = &dnstap__message__descriptor;
dm->d.type = DNSTAP__DNSTAP__TYPE__MESSAGE;
dm->d.message = &dm->m;
dm->m.type = mtype;
if (env->identity != NULL) {
dm->d.identity.data = (uint8_t *) env->identity;
dm->d.identity.len = (size_t) env->len_identity;
dm->d.has_identity = 1;
}
if (env->version != NULL) {
dm->d.version.data = (uint8_t *) env->version;
dm->d.version.len = (size_t) env->len_version;
dm->d.has_version = 1;
}
}
struct dt_env *
dt_create(const char *socket_path, unsigned num_workers)
{
#ifdef UNBOUND_DEBUG
fstrm_res res;
#endif
struct dt_env *env;
struct fstrm_iothr_options *fopt;
struct fstrm_unix_writer_options *fuwopt;
struct fstrm_writer *fw;
struct fstrm_writer_options *fwopt;
verbose(VERB_OPS, "attempting to connect to dnstap socket %s",
socket_path);
log_assert(socket_path != NULL);
log_assert(num_workers > 0);
env = (struct dt_env *) calloc(1, sizeof(struct dt_env));
if (!env)
return NULL;
fwopt = fstrm_writer_options_init();
#ifdef UNBOUND_DEBUG
res =
#else
(void)
#endif
fstrm_writer_options_add_content_type(fwopt,
DNSTAP_CONTENT_TYPE, sizeof(DNSTAP_CONTENT_TYPE) - 1);
log_assert(res == fstrm_res_success);
fuwopt = fstrm_unix_writer_options_init();
fstrm_unix_writer_options_set_socket_path(fuwopt, socket_path);
fw = fstrm_unix_writer_init(fuwopt, fwopt);
log_assert(fw != NULL);
fopt = fstrm_iothr_options_init();
fstrm_iothr_options_set_num_input_queues(fopt, num_workers);
env->iothr = fstrm_iothr_init(fopt, &fw);
if (env->iothr == NULL) {
verbose(VERB_DETAIL, "dt_create: fstrm_iothr_init() failed");
fstrm_writer_destroy(&fw);
free(env);
env = NULL;
}
fstrm_iothr_options_destroy(&fopt);
fstrm_unix_writer_options_destroy(&fuwopt);
fstrm_writer_options_destroy(&fwopt);
return env;
}
static void
dt_apply_identity(struct dt_env *env, struct config_file *cfg)
{
char buf[MAXHOSTNAMELEN+1];
if (!cfg->dnstap_send_identity)
return;
free(env->identity);
if (cfg->dnstap_identity == NULL || cfg->dnstap_identity[0] == 0) {
if (gethostname(buf, MAXHOSTNAMELEN) == 0) {
buf[MAXHOSTNAMELEN] = 0;
env->identity = strdup(buf);
} else {
fatal_exit("dt_apply_identity: gethostname() failed");
}
} else {
env->identity = strdup(cfg->dnstap_identity);
}
if (env->identity == NULL)
fatal_exit("dt_apply_identity: strdup() failed");
env->len_identity = (unsigned int)strlen(env->identity);
verbose(VERB_OPS, "dnstap identity field set to \"%s\"",
env->identity);
}
static void
dt_apply_version(struct dt_env *env, struct config_file *cfg)
{
if (!cfg->dnstap_send_version)
return;
free(env->version);
if (cfg->dnstap_version == NULL || cfg->dnstap_version[0] == 0)
env->version = strdup(PACKAGE_STRING);
else
env->version = strdup(cfg->dnstap_version);
if (env->version == NULL)
fatal_exit("dt_apply_version: strdup() failed");
env->len_version = (unsigned int)strlen(env->version);
verbose(VERB_OPS, "dnstap version field set to \"%s\"",
env->version);
}
void
dt_apply_cfg(struct dt_env *env, struct config_file *cfg)
{
if (!cfg->dnstap)
return;
dt_apply_identity(env, cfg);
dt_apply_version(env, cfg);
if ((env->log_resolver_query_messages = (unsigned int)
cfg->dnstap_log_resolver_query_messages))
{
verbose(VERB_OPS, "dnstap Message/RESOLVER_QUERY enabled");
}
if ((env->log_resolver_response_messages = (unsigned int)
cfg->dnstap_log_resolver_response_messages))
{
verbose(VERB_OPS, "dnstap Message/RESOLVER_RESPONSE enabled");
}
if ((env->log_client_query_messages = (unsigned int)
cfg->dnstap_log_client_query_messages))
{
verbose(VERB_OPS, "dnstap Message/CLIENT_QUERY enabled");
}
if ((env->log_client_response_messages = (unsigned int)
cfg->dnstap_log_client_response_messages))
{
verbose(VERB_OPS, "dnstap Message/CLIENT_RESPONSE enabled");
}
if ((env->log_forwarder_query_messages = (unsigned int)
cfg->dnstap_log_forwarder_query_messages))
{
verbose(VERB_OPS, "dnstap Message/FORWARDER_QUERY enabled");
}
if ((env->log_forwarder_response_messages = (unsigned int)
cfg->dnstap_log_forwarder_response_messages))
{
verbose(VERB_OPS, "dnstap Message/FORWARDER_RESPONSE enabled");
}
}
int
dt_init(struct dt_env *env)
{
env->ioq = fstrm_iothr_get_input_queue(env->iothr);
if (env->ioq == NULL)
return 0;
return 1;
}
void
dt_delete(struct dt_env *env)
{
if (!env)
return;
verbose(VERB_OPS, "closing dnstap socket");
fstrm_iothr_destroy(&env->iothr);
free(env->identity);
free(env->version);
free(env);
}
static void
dt_fill_timeval(const struct timeval *tv,
uint64_t *time_sec, protobuf_c_boolean *has_time_sec,
uint32_t *time_nsec, protobuf_c_boolean *has_time_nsec)
{
#ifndef S_SPLINT_S
*time_sec = tv->tv_sec;
*time_nsec = tv->tv_usec * 1000;
#endif
*has_time_sec = 1;
*has_time_nsec = 1;
}
static void
dt_fill_buffer(sldns_buffer *b, ProtobufCBinaryData *p, protobuf_c_boolean *has)
{
log_assert(b != NULL);
p->len = sldns_buffer_limit(b);
p->data = sldns_buffer_begin(b);
*has = 1;
}
static void
dt_msg_fill_net(struct dt_msg *dm,
struct sockaddr_storage *ss,
enum comm_point_type cptype,
ProtobufCBinaryData *addr, protobuf_c_boolean *has_addr,
uint32_t *port, protobuf_c_boolean *has_port)
{
log_assert(ss->ss_family == AF_INET6 || ss->ss_family == AF_INET);
if (ss->ss_family == AF_INET6) {
struct sockaddr_in6 *s = (struct sockaddr_in6 *) ss;
/* socket_family */
dm->m.socket_family = DNSTAP__SOCKET_FAMILY__INET6;
dm->m.has_socket_family = 1;
/* addr: query_address or response_address */
addr->data = s->sin6_addr.s6_addr;
addr->len = 16; /* IPv6 */
*has_addr = 1;
/* port: query_port or response_port */
*port = ntohs(s->sin6_port);
*has_port = 1;
} else if (ss->ss_family == AF_INET) {
struct sockaddr_in *s = (struct sockaddr_in *) ss;
/* socket_family */
dm->m.socket_family = DNSTAP__SOCKET_FAMILY__INET;
dm->m.has_socket_family = 1;
/* addr: query_address or response_address */
addr->data = (uint8_t *) &s->sin_addr.s_addr;
addr->len = 4; /* IPv4 */
*has_addr = 1;
/* port: query_port or response_port */
*port = ntohs(s->sin_port);
*has_port = 1;
}
log_assert(cptype == comm_udp || cptype == comm_tcp);
if (cptype == comm_udp) {
/* socket_protocol */
dm->m.socket_protocol = DNSTAP__SOCKET_PROTOCOL__UDP;
dm->m.has_socket_protocol = 1;
} else if (cptype == comm_tcp) {
/* socket_protocol */
dm->m.socket_protocol = DNSTAP__SOCKET_PROTOCOL__TCP;
dm->m.has_socket_protocol = 1;
}
}
void
dt_msg_send_client_query(struct dt_env *env,
struct sockaddr_storage *qsock,
enum comm_point_type cptype,
sldns_buffer *qmsg)
{
struct dt_msg dm;
struct timeval qtime;
gettimeofday(&qtime, NULL);
/* type */
dt_msg_init(env, &dm, DNSTAP__MESSAGE__TYPE__CLIENT_QUERY);
/* query_time */
dt_fill_timeval(&qtime,
&dm.m.query_time_sec, &dm.m.has_query_time_sec,
&dm.m.query_time_nsec, &dm.m.has_query_time_nsec);
/* query_message */
dt_fill_buffer(qmsg, &dm.m.query_message, &dm.m.has_query_message);
/* socket_family, socket_protocol, query_address, query_port */
log_assert(cptype == comm_udp || cptype == comm_tcp);
dt_msg_fill_net(&dm, qsock, cptype,
&dm.m.query_address, &dm.m.has_query_address,
&dm.m.query_port, &dm.m.has_query_port);
if (dt_pack(&dm.d, &dm.buf, &dm.len_buf))
dt_send(env, dm.buf, dm.len_buf);
}
void
dt_msg_send_client_response(struct dt_env *env,
struct sockaddr_storage *qsock,
enum comm_point_type cptype,
sldns_buffer *rmsg)
{
struct dt_msg dm;
struct timeval rtime;
gettimeofday(&rtime, NULL);
/* type */
dt_msg_init(env, &dm, DNSTAP__MESSAGE__TYPE__CLIENT_RESPONSE);
/* response_time */
dt_fill_timeval(&rtime,
&dm.m.response_time_sec, &dm.m.has_response_time_sec,
&dm.m.response_time_nsec, &dm.m.has_response_time_nsec);
/* response_message */
dt_fill_buffer(rmsg, &dm.m.response_message, &dm.m.has_response_message);
/* socket_family, socket_protocol, query_address, query_port */
log_assert(cptype == comm_udp || cptype == comm_tcp);
dt_msg_fill_net(&dm, qsock, cptype,
&dm.m.query_address, &dm.m.has_query_address,
&dm.m.query_port, &dm.m.has_query_port);
if (dt_pack(&dm.d, &dm.buf, &dm.len_buf))
dt_send(env, dm.buf, dm.len_buf);
}
void
dt_msg_send_outside_query(struct dt_env *env,
struct sockaddr_storage *rsock,
enum comm_point_type cptype,
uint8_t *zone, size_t zone_len,
sldns_buffer *qmsg)
{
struct dt_msg dm;
struct timeval qtime;
uint16_t qflags;
gettimeofday(&qtime, NULL);
qflags = sldns_buffer_read_u16_at(qmsg, 2);
/* type */
if (qflags & BIT_RD) {
if (!env->log_forwarder_query_messages)
return;
dt_msg_init(env, &dm, DNSTAP__MESSAGE__TYPE__FORWARDER_QUERY);
} else {
if (!env->log_resolver_query_messages)
return;
dt_msg_init(env, &dm, DNSTAP__MESSAGE__TYPE__RESOLVER_QUERY);
}
/* query_zone */
dm.m.query_zone.data = zone;
dm.m.query_zone.len = zone_len;
dm.m.has_query_zone = 1;
/* query_time_sec, query_time_nsec */
dt_fill_timeval(&qtime,
&dm.m.query_time_sec, &dm.m.has_query_time_sec,
&dm.m.query_time_nsec, &dm.m.has_query_time_nsec);
/* query_message */
dt_fill_buffer(qmsg, &dm.m.query_message, &dm.m.has_query_message);
/* socket_family, socket_protocol, response_address, response_port */
log_assert(cptype == comm_udp || cptype == comm_tcp);
dt_msg_fill_net(&dm, rsock, cptype,
&dm.m.response_address, &dm.m.has_response_address,
&dm.m.response_port, &dm.m.has_response_port);
if (dt_pack(&dm.d, &dm.buf, &dm.len_buf))
dt_send(env, dm.buf, dm.len_buf);
}
void
dt_msg_send_outside_response(struct dt_env *env,
struct sockaddr_storage *rsock,
enum comm_point_type cptype,
uint8_t *zone, size_t zone_len,
uint8_t *qbuf, size_t qbuf_len,
const struct timeval *qtime,
const struct timeval *rtime,
sldns_buffer *rmsg)
{
struct dt_msg dm;
uint16_t qflags;
log_assert(qbuf_len >= sizeof(qflags));
memcpy(&qflags, qbuf, sizeof(qflags));
qflags = ntohs(qflags);
/* type */
if (qflags & BIT_RD) {
if (!env->log_forwarder_response_messages)
return;
dt_msg_init(env, &dm, DNSTAP__MESSAGE__TYPE__FORWARDER_RESPONSE);
} else {
if (!env->log_resolver_response_messages)
return;
dt_msg_init(env, &dm, DNSTAP__MESSAGE__TYPE__RESOLVER_RESPONSE);
}
/* query_zone */
dm.m.query_zone.data = zone;
dm.m.query_zone.len = zone_len;
dm.m.has_query_zone = 1;
/* query_time_sec, query_time_nsec */
dt_fill_timeval(qtime,
&dm.m.query_time_sec, &dm.m.has_query_time_sec,
&dm.m.query_time_nsec, &dm.m.has_query_time_nsec);
/* response_time_sec, response_time_nsec */
dt_fill_timeval(rtime,
&dm.m.response_time_sec, &dm.m.has_response_time_sec,
&dm.m.response_time_nsec, &dm.m.has_response_time_nsec);
/* response_message */
dt_fill_buffer(rmsg, &dm.m.response_message, &dm.m.has_response_message);
/* socket_family, socket_protocol, response_address, response_port */
log_assert(cptype == comm_udp || cptype == comm_tcp);
dt_msg_fill_net(&dm, rsock, cptype,
&dm.m.response_address, &dm.m.has_response_address,
&dm.m.response_port, &dm.m.has_response_port);
if (dt_pack(&dm.d, &dm.buf, &dm.len_buf))
dt_send(env, dm.buf, dm.len_buf);
}
#endif /* USE_DNSTAP */

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/* dnstap support for Unbound */
/*
* Copyright (c) 2013-2014, Farsight Security, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef UNBOUND_DNSTAP_H
#define UNBOUND_DNSTAP_H
#include "dnstap/dnstap_config.h"
#ifdef USE_DNSTAP
struct config_file;
struct fstrm_io;
struct fstrm_queue;
struct sldns_buffer;
struct dt_env {
/** dnstap I/O thread */
struct fstrm_iothr *iothr;
/** dnstap I/O thread input queue */
struct fstrm_iothr_queue *ioq;
/** dnstap "identity" field, NULL if disabled */
char *identity;
/** dnstap "version" field, NULL if disabled */
char *version;
/** length of "identity" field */
unsigned len_identity;
/** length of "version" field */
unsigned len_version;
/** whether to log Message/RESOLVER_QUERY */
unsigned log_resolver_query_messages : 1;
/** whether to log Message/RESOLVER_RESPONSE */
unsigned log_resolver_response_messages : 1;
/** whether to log Message/CLIENT_QUERY */
unsigned log_client_query_messages : 1;
/** whether to log Message/CLIENT_RESPONSE */
unsigned log_client_response_messages : 1;
/** whether to log Message/FORWARDER_QUERY */
unsigned log_forwarder_query_messages : 1;
/** whether to log Message/FORWARDER_RESPONSE */
unsigned log_forwarder_response_messages : 1;
};
/**
* Create dnstap environment object. Afterwards, call dt_apply_cfg() to fill in
* the config variables and dt_init() to fill in the per-worker state. Each
* worker needs a copy of this object but with its own I/O queue (the fq field
* of the structure) to ensure lock-free access to its own per-worker circular
* queue. Duplicate the environment object if more than one worker needs to
* share access to the dnstap I/O socket.
* @param socket_path: path to dnstap logging socket, must be non-NULL.
* @param num_workers: number of worker threads, must be > 0.
* @return dt_env object, NULL on failure.
*/
struct dt_env *
dt_create(const char *socket_path, unsigned num_workers);
/**
* Apply config settings.
* @param env: dnstap environment object.
* @param cfg: new config settings.
*/
void
dt_apply_cfg(struct dt_env *env, struct config_file *cfg);
/**
* Initialize per-worker state in dnstap environment object.
* @param env: dnstap environment object to initialize, created with dt_create().
* @return: true on success, false on failure.
*/
int
dt_init(struct dt_env *env);
/**
* Delete dnstap environment object. Closes dnstap I/O socket and deletes all
* per-worker I/O queues.
*/
void
dt_delete(struct dt_env *env);
/**
* Create and send a new dnstap "Message" event of type CLIENT_QUERY.
* @param env: dnstap environment object.
* @param qsock: address/port of client.
* @param cptype: comm_udp or comm_tcp.
* @param qmsg: query message.
*/
void
dt_msg_send_client_query(struct dt_env *env,
struct sockaddr_storage *qsock,
enum comm_point_type cptype,
struct sldns_buffer *qmsg);
/**
* Create and send a new dnstap "Message" event of type CLIENT_RESPONSE.
* @param env: dnstap environment object.
* @param qsock: address/port of client.
* @param cptype: comm_udp or comm_tcp.
* @param rmsg: response message.
*/
void
dt_msg_send_client_response(struct dt_env *env,
struct sockaddr_storage *qsock,
enum comm_point_type cptype,
struct sldns_buffer *rmsg);
/**
* Create and send a new dnstap "Message" event of type RESOLVER_QUERY or
* FORWARDER_QUERY. The type used is dependent on the value of the RD bit
* in the query header.
* @param env: dnstap environment object.
* @param rsock: address/port of server the query is being sent to.
* @param cptype: comm_udp or comm_tcp.
* @param zone: query zone.
* @param zone_len: length of zone.
* @param qmsg: query message.
*/
void
dt_msg_send_outside_query(struct dt_env *env,
struct sockaddr_storage *rsock,
enum comm_point_type cptype,
uint8_t *zone, size_t zone_len,
struct sldns_buffer *qmsg);
/**
* Create and send a new dnstap "Message" event of type RESOLVER_RESPONSE or
* FORWARDER_RESPONSE. The type used is dependent on the value of the RD bit
* in the query header.
* @param env: dnstap environment object.
* @param rsock: address/port of server the response was received from.
* @param cptype: comm_udp or comm_tcp.
* @param zone: query zone.
* @param zone_len: length of zone.
* @param qbuf: outside_network's qbuf key.
* @param qbuf_len: length of outside_network's qbuf key.
* @param qtime: time query message was sent.
* @param rtime: time response message was sent.
* @param rmsg: response message.
*/
void
dt_msg_send_outside_response(struct dt_env *env,
struct sockaddr_storage *rsock,
enum comm_point_type cptype,
uint8_t *zone, size_t zone_len,
uint8_t *qbuf, size_t qbuf_len,
const struct timeval *qtime,
const struct timeval *rtime,
struct sldns_buffer *rmsg);
#endif /* USE_DNSTAP */
#endif /* UNBOUND_DNSTAP_H */

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external/unbound/dnstap/dnstap.m4 vendored
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@ -1,56 +0,0 @@
# dnstap.m4
# dt_DNSTAP(default_dnstap_socket_path, [action-if-true], [action-if-false])
# --------------------------------------------------------------------------
# Check for required dnstap libraries and add dnstap configure args.
AC_DEFUN([dt_DNSTAP],
[
AC_ARG_ENABLE([dnstap],
AS_HELP_STRING([--enable-dnstap],
[Enable dnstap support (requires fstrm, protobuf-c)]),
[opt_dnstap=$enableval], [opt_dnstap=no])
AC_ARG_WITH([dnstap-socket-path],
AS_HELP_STRING([--with-dnstap-socket-path=pathname],
[set default dnstap socket path]),
[opt_dnstap_socket_path=$withval], [opt_dnstap_socket_path="$1"])
if test "x$opt_dnstap" != "xno"; then
AC_PATH_PROG([PROTOC_C], [protoc-c])
if test -z "$PROTOC_C"; then
AC_MSG_ERROR([The protoc-c program was not found. Please install protobuf-c!])
fi
AC_ARG_WITH([protobuf-c], AC_HELP_STRING([--with-protobuf-c=path],
[Path where protobuf-c is installed, for dnstap]), [
# workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
if test -f $withval/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I$withval/include/google"
else
CFLAGS="$CFLAGS -I$withval/include"
fi
LDFLAGS="$LDFLAGS -L$withval/lib"
], [
# workaround for protobuf-c includes at old dir before protobuf-c-1.0.0
if test -f /usr/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I/usr/include/google"
else
if test -f /usr/local/include/google/protobuf-c/protobuf-c.h; then
CFLAGS="$CFLAGS -I/usr/local/include/google"
LDFLAGS="$LDFLAGS -L/usr/local/lib"
fi
fi
])
AC_ARG_WITH([libfstrm], AC_HELP_STRING([--with-libfstrm=path],
[Path where libfstrm is installed, for dnstap]), [
CFLAGS="$CFLAGS -I$withval/include"
LDFLAGS="$LDFLAGS -L$withval/lib"
])
AC_SEARCH_LIBS([fstrm_iothr_init], [fstrm], [],
AC_MSG_ERROR([The fstrm library was not found. Please install fstrm!]))
AC_SEARCH_LIBS([protobuf_c_message_pack], [protobuf-c], [],
AC_MSG_ERROR([The protobuf-c library was not found. Please install protobuf-c!]))
$2
else
$3
fi
])

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// dnstap: flexible, structured event replication format for DNS software
//
// This file contains the protobuf schemas for the "dnstap" structured event
// replication format for DNS software.
// Written in 2013-2014 by Farsight Security, Inc.
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this file to the public
// domain worldwide. This file is distributed without any warranty.
//
// You should have received a copy of the CC0 Public Domain Dedication along
// with this file. If not, see:
//
// <http://creativecommons.org/publicdomain/zero/1.0/>.
package dnstap;
// "Dnstap": this is the top-level dnstap type, which is a "union" type that
// contains other kinds of dnstap payloads, although currently only one type
// of dnstap payload is defined.
// See: https://developers.google.com/protocol-buffers/docs/techniques#union
message Dnstap {
// DNS server identity.
// If enabled, this is the identity string of the DNS server which generated
// this message. Typically this would be the same string as returned by an
// "NSID" (RFC 5001) query.
optional bytes identity = 1;
// DNS server version.
// If enabled, this is the version string of the DNS server which generated
// this message. Typically this would be the same string as returned by a
// "version.bind" query.
optional bytes version = 2;
// Extra data for this payload.
// This field can be used for adding an arbitrary byte-string annotation to
// the payload. No encoding or interpretation is applied or enforced.
optional bytes extra = 3;
// Identifies which field below is filled in.
enum Type {
MESSAGE = 1;
}
required Type type = 15;
// One of the following will be filled in.
optional Message message = 14;
}
// SocketFamily: the network protocol family of a socket. This specifies how
// to interpret "network address" fields.
enum SocketFamily {
INET = 1; // IPv4 (RFC 791)
INET6 = 2; // IPv6 (RFC 2460)
}
// SocketProtocol: the transport protocol of a socket. This specifies how to
// interpret "transport port" fields.
enum SocketProtocol {
UDP = 1; // User Datagram Protocol (RFC 768)
TCP = 2; // Transmission Control Protocol (RFC 793)
}
// Message: a wire-format (RFC 1035 section 4) DNS message and associated
// metadata. Applications generating "Message" payloads should follow
// certain requirements based on the MessageType, see below.
message Message {
// There are eight types of "Message" defined that correspond to the
// four arrows in the following diagram, slightly modified from RFC 1035
// section 2:
// +---------+ +----------+ +--------+
// | | query | | query | |
// | Stub |-SQ--------CQ->| Recursive|-RQ----AQ->| Auth. |
// | Resolver| | Server | | Name |
// | |<-SR--------CR-| |<-RR----AR-| Server |
// +---------+ response | | response | |
// +----------+ +--------+
// Each arrow has two Type values each, one for each "end" of each arrow,
// because these are considered to be distinct events. Each end of each
// arrow on the diagram above has been marked with a two-letter Type
// mnemonic. Clockwise from upper left, these mnemonic values are:
//
// SQ: STUB_QUERY
// CQ: CLIENT_QUERY
// RQ: RESOLVER_QUERY
// AQ: AUTH_QUERY
// AR: AUTH_RESPONSE
// RR: RESOLVER_RESPONSE
// CR: CLIENT_RESPONSE
// SR: STUB_RESPONSE
// Two additional types of "Message" have been defined for the
// "forwarding" case where an upstream DNS server is responsible for
// further recursion. These are not shown on the diagram above, but have
// the following mnemonic values:
// FQ: FORWARDER_QUERY
// FR: FORWARDER_RESPONSE
// The "Message" Type values are defined below.
enum Type {
// AUTH_QUERY is a DNS query message received from a resolver by an
// authoritative name server, from the perspective of the authoritative
// name server.
AUTH_QUERY = 1;
// AUTH_RESPONSE is a DNS response message sent from an authoritative
// name server to a resolver, from the perspective of the authoritative
// name server.
AUTH_RESPONSE = 2;
// RESOLVER_QUERY is a DNS query message sent from a resolver to an
// authoritative name server, from the perspective of the resolver.
// Resolvers typically clear the RD (recursion desired) bit when
// sending queries.
RESOLVER_QUERY = 3;
// RESOLVER_RESPONSE is a DNS response message received from an
// authoritative name server by a resolver, from the perspective of
// the resolver.
RESOLVER_RESPONSE = 4;
// CLIENT_QUERY is a DNS query message sent from a client to a DNS
// server which is expected to perform further recursion, from the
// perspective of the DNS server. The client may be a stub resolver or
// forwarder or some other type of software which typically sets the RD
// (recursion desired) bit when querying the DNS server. The DNS server
// may be a simple forwarding proxy or it may be a full recursive
// resolver.
CLIENT_QUERY = 5;
// CLIENT_RESPONSE is a DNS response message sent from a DNS server to
// a client, from the perspective of the DNS server. The DNS server
// typically sets the RA (recursion available) bit when responding.
CLIENT_RESPONSE = 6;
// FORWARDER_QUERY is a DNS query message sent from a downstream DNS
// server to an upstream DNS server which is expected to perform
// further recursion, from the perspective of the downstream DNS
// server.
FORWARDER_QUERY = 7;
// FORWARDER_RESPONSE is a DNS response message sent from an upstream
// DNS server performing recursion to a downstream DNS server, from the
// perspective of the downstream DNS server.
FORWARDER_RESPONSE = 8;
// STUB_QUERY is a DNS query message sent from a stub resolver to a DNS
// server, from the perspective of the stub resolver.
STUB_QUERY = 9;
// STUB_RESPONSE is a DNS response message sent from a DNS server to a
// stub resolver, from the perspective of the stub resolver.
STUB_RESPONSE = 10;
}
// One of the Type values described above.
required Type type = 1;
// One of the SocketFamily values described above.
optional SocketFamily socket_family = 2;
// One of the SocketProtocol values described above.
optional SocketProtocol socket_protocol = 3;
// The network address of the message initiator.
// For SocketFamily INET, this field is 4 octets (IPv4 address).
// For SocketFamily INET6, this field is 16 octets (IPv6 address).
optional bytes query_address = 4;
// The network address of the message responder.
// For SocketFamily INET, this field is 4 octets (IPv4 address).
// For SocketFamily INET6, this field is 16 octets (IPv6 address).
optional bytes response_address = 5;
// The transport port of the message initiator.
// This is a 16-bit UDP or TCP port number, depending on SocketProtocol.
optional uint32 query_port = 6;
// The transport port of the message responder.
// This is a 16-bit UDP or TCP port number, depending on SocketProtocol.
optional uint32 response_port = 7;
// The time at which the DNS query message was sent or received, depending
// on whether this is an AUTH_QUERY, RESOLVER_QUERY, or CLIENT_QUERY.
// This is the number of seconds since the UNIX epoch.
optional uint64 query_time_sec = 8;
// The time at which the DNS query message was sent or received.
// This is the seconds fraction, expressed as a count of nanoseconds.
optional fixed32 query_time_nsec = 9;
// The initiator's original wire-format DNS query message, verbatim.
optional bytes query_message = 10;
// The "zone" or "bailiwick" pertaining to the DNS query message.
// This is a wire-format DNS domain name.
optional bytes query_zone = 11;
// The time at which the DNS response message was sent or received,
// depending on whether this is an AUTH_RESPONSE, RESOLVER_RESPONSE, or
// CLIENT_RESPONSE.
// This is the number of seconds since the UNIX epoch.
optional uint64 response_time_sec = 12;
// The time at which the DNS response message was sent or received.
// This is the seconds fraction, expressed as a count of nanoseconds.
optional fixed32 response_time_nsec = 13;
// The responder's original wire-format DNS response message, verbatim.
optional bytes response_message = 14;
}
// All fields except for 'type' in the Message schema are optional.
// It is recommended that at least the following fields be filled in for
// particular types of Messages.
// AUTH_QUERY:
// socket_family, socket_protocol
// query_address, query_port
// query_message
// query_time_sec, query_time_nsec
// AUTH_RESPONSE:
// socket_family, socket_protocol
// query_address, query_port
// query_time_sec, query_time_nsec
// response_message
// response_time_sec, response_time_nsec
// RESOLVER_QUERY:
// socket_family, socket_protocol
// query_name, query_type, query_class
// query_message
// query_time_sec, query_time_nsec
// query_zone
// response_address, response_port
// RESOLVER_RESPONSE:
// socket_family, socket_protocol
// query_name, query_type, query_class
// query_time_sec, query_time_nsec
// query_zone
// response_address, response_port
// response_message
// response_time_sec, response_time_nsec
// CLIENT_QUERY:
// socket_family, socket_protocol
// query_message
// query_time_sec, query_time_nsec
// CLIENT_RESPONSE:
// socket_family, socket_protocol
// query_time_sec, query_time_nsec
// response_message
// response_time_sec, response_time_nsec

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external/unbound/dnstap/dnstap_config.h.in vendored
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#ifndef UNBOUND_DNSTAP_CONFIG_H
#define UNBOUND_DNSTAP_CONFIG_H
/*
* Process this file (dnstap_config.h.in) with AC_CONFIG_FILES to generate
* dnstap_config.h.
*
* This file exists so that USE_DNSTAP can be used without including config.h.
*/
#if @ENABLE_DNSTAP@ /* ENABLE_DNSTAP */
# ifndef USE_DNSTAP
# define USE_DNSTAP 1
# endif
#endif
#endif /* UNBOUND_DNSTAP_CONFIG_H */

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Unbound was developed at NLnet Labs by Wouter Wijngaards.
Unbound was architected in January of 2004 by Jakob Schlyter of Kirei
and Roy Arends of Nominet. VeriSign and EP.Net funded development of
the prototype, which was built by David Blacka and Matt Larson of VeriSign.
Late in 2006, NLnet Labs joined the effort, writing an implementation in C
based on the existing prototype and using experience NLnet Labs gained
during the development of NSD, an authoritative DNS server.
At NLnet Labs, Jelte Jansen, Mark Santcroos and Matthijs Mekking
reviewed the unbound C sources.
Jakob Schlyter - for advice on secure settings, random numbers and blacklists.
Ondřej Surý - running coverity analysis tool on 0.9 dev version.
Alexander Gall - multihomed, anycast testing of unbound resolver server.
Zdenek Vasicek and Marek Vavrusa - python module.
cz.nic - sponsoring 'summer of code' development by Zdenek and Marek.
Brett Carr - windows beta testing.
Luca Bruno - patch for windows support in libunbound hosts and resolvconf().
Tom Hendrikx - contributed split-itar.sh a useful script to 5011-track ITAR.
Daisuke HIGASHI - patch for rrset-roundrobin and minimal-responses.
Simon Perrault - DNS64 module.
Robert Edmonds - dnstap code.

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Unbound Features
(C) Copyright 2008, Wouter Wijngaards, NLnet Labs.
This document describes the features and RFCs that unbound
adheres to, and which ones are decided to be out of scope.
Big Features
------------
Recursive service.
Caching service.
Forwarding and stub zones.
Very limited authoritative service.
DNSSEC Validation options.
EDNS0, NSEC3, IPv6, DNAME, Unknown-RR-types.
RSASHA256, GOST, ECDSA, SHA384 DNSSEC algorithms.
Details
-------
Processing support
RFC 1034-1035: as a recursive, caching server. Not authoritative.
including CNAMEs, referrals, wildcards, classes, ...
AAAA type, and IP6 dual stack support.
type ANY queries are supported, class ANY queries are supported.
RFC 1123, 6.1 Requirements for DNS of internet hosts.
RFC 4033-4035: as a validating caching server (unbound daemon).
as a validating stub (libunbound).
RFC 1918.
RFC 1995, 1996, 2136: not authoritative, so no AXFR, IXFR, NOTIFY or
dynamic update services are appropriate.
RFC 2181: completely, including the trust model, keeping rrsets together.
RFC 2308: TTL directive, and the rest of the RFC too.
RFC 2671: EDNS0 support, default advertisement 4Kb size.
RFC 2672: DNAME support.
RFC 3597: Unknown RR type support.
RFC 4343: case insensitive handling of domain names.
RFC 4509: SHA256 DS hash.
RFC 4592: wildcards.
RFC 4697: No DNS Resolution Misbehavior.
RFC 5011: update of trust anchors with timers.
RFC 5155: NSEC3, NSEC3PARAM types
RFC 5358: reflectors-are-evil: access control list for recursive
service. In fact for all DNS service so cache snooping is halted.
RFC 5452: forgery resilience. all recommendations followed.
RFC 5702: RSASHA256 signature algorithm.
RFC 5933: GOST signature algorithm.
RFC 6303: default local zones.
It is possible to block zones or return an address for localhost.
This is a very limited authoritative service. Defaults as in draft.
RFC 6604: xNAME RCODE and status bits.
RFC 6605: ECDSA signature algorithm, SHA384 DS hash.
chroot and drop-root-privileges support, default enabled in config file.
AD bit in query can be used to request AD bit in response (w/o using DO bit).
CD bit in query can be used to request bogus data.
UDP and TCP service is provided downstream.
UDP and TCP are used to request from upstream servers.
SSL wrapped TCP service can be used upstream and provided downstream.
Multiple queries can be made over a TCP stream.
No TSIG support at this time.
No SIG0 support at this time.
No dTLS support at this time.
This is not a DNS statistics package, but some operationally useful
values are provided via unbound-control stats.
TXT RRs from the Chaos class (id.server, hostname.bind, ...) are supported.
draft-0x20: implemented, use caps-for-id option to enable use.
Also implements bitwise echo of the query to support downstream 0x20.
draft-ietf-dnsop-resolver-priming(-00): can prime and can fallback to
a safety belt list.
draft-ietf-dnsop-dnssec-trust-anchor(-01): DS records can be configured
as trust anchors. Also DNSKEYs are allowed, by the way.
draft-ietf-dnsext-dnssec-bis-updates: supported.
Record type syntax support, extensive, from lib ldns.
For these types only syntax and parsing support is needed.
RFC 1034-1035: basic RR types.
RFC 1183: RP, AFSDB, X25, ISDN, RT
RFC 1706: NSAP
RFC 2535: KEY, SIG, NXT: treated as unknown data, syntax is parsed (obsolete).
2163: PX
AAAA type
1876: LOC type
2782: SRV type
2915: NAPTR type.
2230: KX type.
2538: CERT type.
2672: DNAME type.
OPT type
3123: APL
3596: AAAA
SSHFP type
4025: IPSECKEY
4033-4035: DS, RRSIG, NSEC, DNSKEY
4701: DHCID
5155: NSEC3, NSEC3PARAM
4408: SPF
6944: DNSKEY algorithm status

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Copyright (c) 2007, NLnet Labs. All rights reserved.
This software is open source.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
Neither the name of the NLNET LABS nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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