Commit Graph

480 Commits

Author SHA1 Message Date
Nick Mathewson
4bdff5e3e9 practracker compliance: split lint_message into more logical parts 2019-03-25 16:35:34 -04:00
Nick Mathewson
3552cd69bd coverage: Exclude lines in pubsub_pub that can only be reached on bug 2019-03-25 16:35:34 -04:00
Nick Mathewson
2e7f80d5f4 pubsub_check.c: Stop accepting NULL prefix, which we never send.
(Our code to handle it was broken, too)
2019-03-25 16:35:34 -04:00
Nick Mathewson
beedadbeac Try a different approach to making publish function seem used.
We want the DISPATCH_ADD_PUB() macro to count as making a
DECLARE_PUBLISH() invocation "used", so let's try a new approach
that preserves that idea.  The old one apparently did not work for
some versions of osx clang.
2019-03-25 16:35:34 -04:00
Nick Mathewson
94feec59cf move pubsub_connector_t typedef to pubsub_connect.h 2019-03-25 16:35:34 -04:00
Nick Mathewson
22ad8658cd Correct doxygen @file directives 2019-03-25 16:35:34 -04:00
Nick Mathewson
3d6bf7b36e Document several issues found by Taylor 2019-03-25 16:35:34 -04:00
Nick Mathewson
02e0a39d39 Add msgtypes.h include to pubsub_build.h
(The header won't compile without it.)
2019-03-25 16:35:33 -04:00
Nick Mathewson
bdeaf7d4b2 Code to manage publish/subscribe setup via subsystem interface.
This commit has the necessary logic to run the publish/subscribe
system from the mainloop, and to initialize it on startup and tear
it down later.
2019-03-25 16:35:33 -04:00
Nick Mathewson
24df14eb09 Pubsub: macros for ease-of-use and typesafety. 2019-03-25 16:35:33 -04:00
Nick Mathewson
a7681525ab Add function to clear publish bindings.
When we clean up, we'd like to clear all the bindings that refer to
a dispatch_t, so that they don't have dangling pointers to it.
2019-03-25 16:35:33 -04:00
Nick Mathewson
271a671822 pubsub: relationship checking functionality
This code tries to prevent a large number of possible errors by
enforcing different restrictions on the messages that different
modules publish and subscribe to.

Some of these rules are probably too strict, and some too lax: we
should feel free to change them as needed as we move forward and
learn more.
2019-03-25 16:35:33 -04:00
Nick Mathewson
9e60482b80 Pubsub: an OO layer on top of lib/dispatch
This "publish/subscribe" layer sits on top of lib/dispatch, and
tries to provide more type-safety and cross-checking for the
lower-level layer.

Even with this commit, we're still not done: more checking will come
in the next commit, and a set of usability/typesafety macros will
come after.
2019-03-25 16:35:33 -04:00
Nick Mathewson
24b945f713 Debug logs to record all messages sent and delivered. 2019-03-25 16:35:33 -04:00
Nick Mathewson
f5683d90be Add a naming system for IDs in dispatch. 2019-03-25 16:35:33 -04:00
Nick Mathewson
e4d3098d4d Low-level dispatch module for publish-subscribe mechanism
This module implements a way to send messages from one module to
another, with associated data types.  It does not yet do anything to
ensure that messages are correct, that types match, or that other
forms of consistency are preserved.
2019-03-25 16:35:33 -04:00
Nick Mathewson
a62ac17198 Add a new inline function to check whether debug logging is on
We already do this in our log_debug() macro, but there are times
when we'd like to avoid allocating or precomputing something that we
are only going to log if debugging is on.
2019-03-25 16:35:33 -04:00
Nick Mathewson
253fea84cf Add a smartlist_grow() function to expand a smartlist
Tests included.
2019-03-25 16:35:33 -04:00
Nick Mathewson
56bda7464f Add a macro for the fairly common "eat next semicolon" syntax trick
You use this when you're defining a macro to be used at file scope,
and you want to require a semicolon afterwards.
2019-03-25 16:35:33 -04:00
Nick Mathewson
0944500a8e Add MESG as a new log domain. 2019-03-25 16:35:33 -04:00
Nick Mathewson
dfd7a7f5b6 Add a type to map names to short identifiers
We'll be using this for four kinds of identifier in dispatch.c
2019-03-25 16:35:33 -04:00
Nick Mathewson
b169c8c14f Merge remote-tracking branch 'asn-github/adaptive_padding-final' 2019-01-14 14:48:00 -05:00
Nick Mathewson
99947c3ce0 Merge remote-tracking branch 'teor/bug29015' 2019-01-14 13:59:07 -05:00
Kris Katterjohn
df1a8a657e Actually close the stdout pipe on error in process_unix_exec
When cleaning up after an error in process_unix_exec, the stdin
pipe was being double closed instead of closing both the stdin
and stdout pipes.  This occurred in two places.

Signed-off-by: Kris Katterjohn <katterjohn@gmail.com>
2019-01-11 18:55:09 -05:00
Nick Mathewson
5dd926caa6 Include the beginnings of a FAQ about which timer to use. 2019-01-11 09:08:51 -05:00
Taylor R Campbell
d82a8a7f9d Add some more type checking.
NOTE: This commit breaks the build, because there was a mistake in an
earlier change of exactly the sort that this is meant to detect!  I'm
leaving it broken for illustration.
2019-01-11 14:41:28 +02:00
Taylor R Campbell
0f8253bddb Use the distribution abstraction as an abstraction. 2019-01-11 14:40:50 +02:00
Taylor R Campbell
531df9590d Move ceil call back into the geometric sampler.
Test exactly what the geometric sampler returns, because that's what
the downstream callers of it are going to use.

While here, also assert that the geometric sampler returns a positive
integer.  (Our geometric distribution is the one suported on {1, 2,
3, ...} that returns the number of trials before the first success,
not the one supported on {0, 1, 2, ...} that returns the number of
failures before the first success.)
2019-01-11 14:40:50 +02:00
George Kadianakis
e0e0338dc4 Rename crypto_rand_uint32() -> crypto_rand_u32()
See https://github.com/torproject/tor/pull/624#discussion_r246453777
2019-01-10 13:06:08 +02:00
Nick Mathewson
0ed966fde1 Merge branch 'maint-0.3.5' 2019-01-09 09:38:27 -05:00
Nick Mathewson
694e3c57fd Merge remote-tracking branch 'tor-github/pr/636' into maint-0.3.5 2019-01-09 09:38:22 -05:00
Nick Mathewson
e6a4401200 Merge branch 'maint-0.3.5' 2019-01-09 08:52:10 -05:00
Kris Katterjohn
c13a81f7f9 Fix (and make consistent) the use of OpenBSD preprocessor macro tests
Prior to this commit, the testsuite was failing on OpenBSD.  After
this commit the testsuite runs fine on OpenBSD.

It was previously decided to test for the OpenBSD macro (rather than
__OpenBSD__, etc.) because OpenBSD forks seem to have the former
macro defined.  sys/param.h must be included for the OpenBSD macro
definition; however, many files tested for the OpenBSD macro without
having this header included.

This commit includes sys/param.h in the files where the OpenBSD macro
is used (and sys/param.h is not already included), and it also
changes some instances of the __OpenBSD__ macro to OpenBSD.

See commit 27df23abb6 which changed
everything to use OpenBSD instead of __OpenBSD__ or OPENBSD.  See
also tickets #6982 and #20980 (the latter ticket is where it was
decided to use the OpenBSD macro).

Signed-off-by: Kris Katterjohn <katterjohn@gmail.com>
2019-01-09 08:51:57 -05:00
Nick Mathewson
f9a7701ff1 Merge branch 'ticket28856_v2' 2019-01-09 08:46:40 -05:00
teor
671c34d9b4
lib/net: improve the docs for tor_{ersatz_,}socketpair()
Add some details about IP family support, and point to
tor_socketpair() from tor_ersatz_socketpair().

Closes ticket 29015.
2019-01-08 14:45:17 +10:00
Kris Katterjohn
c59b572e93 Fix tor_ersatz_socketpair on IPv6-only systems
In get_local_listener used by tor_ersatz_socketpair, the address
family used when binding the IPv6 socket was AF_INET instead of
AF_INET6.

Fixes bug 28995; bugfix on 0.3.5.1-alpha.

Signed-off-by: Kris Katterjohn <katterjohn@gmail.com>
2019-01-07 17:28:21 -06:00
Nick Mathewson
4e4f93d364 Add a #ifdef HAVE_UNISTD_H check to buffers.c
Reported on tor-dev by Gisle Vanem.  Bug not in any released Tor

(The suggested patch used _MSC_VER, but that's not how we do stuff
with autoconf.  With autoconf, you detect the feature you want,
rather than trying to list all the systems that do or do not have
it.)
2019-01-03 09:52:19 -05:00
Nick Mathewson
9ba690e33f Merge branch 'maint-0.3.5' 2019-01-03 09:45:56 -05:00
Nick Mathewson
abdc6aede2 Merge branch 'ticket28851_035_squashed' into maint-0.3.5 2019-01-03 09:45:53 -05:00
Nick Mathewson
b82717b273 Stop re-checking our hardcoded dh parameters on every startup
Closes ticket 28851.
2019-01-03 09:45:43 -05:00
Nick Mathewson
47176eb678 Merge branch 'maint-0.3.5' 2019-01-03 09:44:15 -05:00
Nick Mathewson
98736cf36a Merge remote-tracking branch 'public/ticket28838_035' into maint-0.3.5 2019-01-03 09:44:10 -05:00
Nick Mathewson
27853938a1 Merge branch 'maint-0.3.5' 2019-01-03 09:02:40 -05:00
Nick Mathewson
ed62f0fa15 Merge branch 'maint-0.3.4' into maint-0.3.5 2019-01-03 09:02:39 -05:00
Nick Mathewson
3e7f13a4ef Merge branch 'maint-0.3.5' 2019-01-02 16:15:39 -05:00
Nick Mathewson
b33bcb1e63 Add an errno.h include to freespace.c to fix bug 28974. 2019-01-02 15:19:52 -05:00
George Kadianakis
926fc93be5 Concentrate all TOR_USEC_PER_SEC definitions in a single header file.
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
2019-01-02 15:25:55 +02:00
George Kadianakis
2ccf326837 Implement and test probability distributions used by WTF-PAD.
This project introduces the prob_distr.c subsystem which implements all the
probability distributions that WTF-PAD needs. It also adds unittests for all of
them.

Code and tests courtesy of Riastradh.

Co-authored-by: Taylor R Campbell <campbell+tor@mumble.net>
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
2019-01-02 15:25:55 +02:00
George Kadianakis
a336d816a6 Circuit padding tests.
Co-authored-by: George Kadianakis <desnacked@riseup.net>
2019-01-02 15:25:55 +02:00
Mike Perry
3ba7581129 Provide a smartlist reverse-order traversal.
We need this for padding negotiation so that we can have later machine
revisions supercede earlier ones.

Co-authored-by: George Kadianakis <desnacked@riseup.net>
2019-01-02 15:09:13 +02:00