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Merge branch 'subsystems'

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This commit is contained in:
Nick Mathewson 2018-11-09 15:01:49 -05:00
commit bf4f55a13d
72 changed files with 1013 additions and 163 deletions
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2
.gitignore vendored
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@ -210,6 +210,8 @@ uptime-*.json
/src/lib/libtor-tls.a
/src/lib/libtor-tls-testing.a
/src/lib/libtor-trace.a
/src/lib/libtor-version.a
/src/lib/libtor-version-testing.a
/src/lib/libtor-wallclock.a
/src/lib/libtor-wallclock-testing.a

2
Makefile.am
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@ -62,6 +62,7 @@ TOR_UTIL_LIBS = \
src/lib/libtor-malloc.a \
src/lib/libtor-wallclock.a \
src/lib/libtor-err.a \
src/lib/libtor-version.a \
src/lib/libtor-intmath.a \
src/lib/libtor-ctime.a
@ -91,6 +92,7 @@ TOR_UTIL_TESTING_LIBS = \
src/lib/libtor-malloc-testing.a \
src/lib/libtor-wallclock-testing.a \
src/lib/libtor-err-testing.a \
src/lib/libtor-version-testing.a \
src/lib/libtor-intmath.a \
src/lib/libtor-ctime-testing.a
endif

6
changes/subsystems Normal file
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@ -0,0 +1,6 @@
o Major features (refactoring):
- Tor now uses an explicit list of its own subsystems when initializing
and shutting down. Previously, these systems were managed implicitly
though various places throughout the codebase. (There still some
subsystems using the old system.)
Closes ticket 28330.

46
src/app/config/config.c
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@ -64,6 +64,7 @@
#include "app/config/confparse.h"
#include "app/config/statefile.h"
#include "app/main/main.h"
#include "app/main/subsysmgr.h"
#include "core/mainloop/connection.h"
#include "core/mainloop/cpuworker.h"
#include "core/mainloop/mainloop.h"
@ -112,9 +113,9 @@
#include "lib/crypt_ops/crypto_rand.h"
#include "lib/crypt_ops/crypto_util.h"
#include "lib/encoding/confline.h"
#include "lib/log/git_revision.h"
#include "lib/net/resolve.h"
#include "lib/sandbox/sandbox.h"
#include "lib/version/torversion.h"
#ifdef ENABLE_NSS
#include "lib/crypt_ops/crypto_nss_mgt.h"
@ -972,42 +973,6 @@ set_options(or_options_t *new_val, char **msg)
return 0;
}
/** The version of this Tor process, as parsed. */
static char *the_tor_version = NULL;
/** A shorter version of this Tor process's version, for export in our router
* descriptor. (Does not include the git version, if any.) */
static char *the_short_tor_version = NULL;
/** Return the current Tor version. */
const char *
get_version(void)
{
if (the_tor_version == NULL) {
if (strlen(tor_git_revision)) {
tor_asprintf(&the_tor_version, "%s (git-%s)", get_short_version(),
tor_git_revision);
} else {
the_tor_version = tor_strdup(get_short_version());
}
}
return the_tor_version;
}
/** Return the current Tor version, without any git tag. */
const char *
get_short_version(void)
{
if (the_short_tor_version == NULL) {
#ifdef TOR_BUILD_TAG
tor_asprintf(&the_short_tor_version, "%s (%s)", VERSION, TOR_BUILD_TAG);
#else
the_short_tor_version = tor_strdup(VERSION);
#endif
}
return the_short_tor_version;
}
/** Release additional memory allocated in options
*/
STATIC void
@ -1067,9 +1032,6 @@ config_free_all(void)
tor_free(torrc_defaults_fname);
tor_free(global_dirfrontpagecontents);
tor_free(the_short_tor_version);
tor_free(the_tor_version);
cleanup_protocol_warning_severity_level();
have_parsed_cmdline = 0;
@ -1432,10 +1394,10 @@ options_act_reversible(const or_options_t *old_options, char **msg)
* processes. */
if (running_tor && options->RunAsDaemon) {
if (! start_daemon_has_been_called())
crypto_prefork();
subsystems_prefork();
/* No need to roll back, since you can't change the value. */
if (start_daemon())
crypto_postfork();
subsystems_postfork();
}
#ifdef HAVE_SYSTEMD

2
src/app/config/config.h
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@ -41,8 +41,6 @@ const char *escaped_safe_str_client(const char *address);
const char *escaped_safe_str(const char *address);
void init_protocol_warning_severity_level(void);
int get_protocol_warning_severity_level(void);
const char *get_version(void);
const char *get_short_version(void);
/** An error from options_trial_assign() or options_init_from_string(). */
typedef enum setopt_err_t {

1
src/app/config/statefile.c
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@ -45,6 +45,7 @@
#include "app/config/statefile.h"
#include "lib/encoding/confline.h"
#include "lib/net/resolve.h"
#include "lib/version/torversion.h"
#include "app/config/or_state_st.h"

82
src/app/main/main.c
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@ -15,6 +15,7 @@
#include "app/config/statefile.h"
#include "app/main/main.h"
#include "app/main/ntmain.h"
#include "app/main/subsysmgr.h"
#include "core/mainloop/connection.h"
#include "core/mainloop/cpuworker.h"
#include "core/mainloop/mainloop.h"
@ -69,7 +70,6 @@
#include "lib/container/buffers.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "lib/crypt_ops/crypto_s2k.h"
#include "lib/err/backtrace.h"
#include "lib/geoip/geoip.h"
#include "lib/process/waitpid.h"
@ -84,6 +84,7 @@
#include "lib/encoding/confline.h"
#include "lib/evloop/timers.h"
#include "lib/crypt_ops/crypto_init.h"
#include "lib/version/torversion.h"
#include <event2/event.h>
@ -427,18 +428,6 @@ dumpstats(int severity)
rend_service_dump_stats(severity);
}
/** Called by exit() as we shut down the process.
*/
static void
exit_function(void)
{
/* NOTE: If we ever daemonize, this gets called immediately. That's
* okay for now, because we only use this on Windows. */
#ifdef _WIN32
WSACleanup();
#endif
}
#ifdef _WIN32
#define UNIX_ONLY 0
#else
@ -547,12 +536,6 @@ tor_init(int argc, char *argv[])
tor_snprintf(progname, sizeof(progname), "Tor %s", get_version());
log_set_application_name(progname);
/* Set up the crypto nice and early */
if (crypto_early_init() < 0) {
log_err(LD_GENERAL, "Unable to initialize the crypto subsystem!");
return -1;
}
/* Initialize the history structures. */
rep_hist_init();
/* Initialize the service cache. */
@ -632,12 +615,6 @@ tor_init(int argc, char *argv[])
rust_log_welcome_string();
#endif /* defined(HAVE_RUST) */
if (network_init()<0) {
log_err(LD_BUG,"Error initializing network; exiting.");
return -1;
}
atexit(exit_function);
int init_rv = options_init_from_torrc(argc,argv);
if (init_rv < 0) {
log_err(LD_CONFIG,"Reading config failed--see warnings above.");
@ -784,7 +761,6 @@ tor_free_all(int postfork)
routerparse_free_all();
ext_orport_free_all();
control_free_all();
tor_free_getaddrinfo_cache();
protover_free_all();
bridges_free_all();
consdiffmgr_free_all();
@ -802,7 +778,6 @@ tor_free_all(int postfork)
policies_free_all();
}
if (!postfork) {
tor_tls_free_all();
#ifndef _WIN32
tor_getpwnam(NULL);
#endif
@ -815,12 +790,12 @@ tor_free_all(int postfork)
release_lockfile();
}
tor_libevent_free_all();
subsystems_shutdown();
/* Stuff in util.c and address.c*/
if (!postfork) {
escaped(NULL);
esc_router_info(NULL);
clean_up_backtrace_handler();
logs_free_all(); /* free log strings. do this last so logs keep working. */
}
}
@ -879,7 +854,6 @@ tor_cleanup(void)
later, if it makes shutdown unacceptably slow. But for
now, leave it here: it's helped us catch bugs in the
past. */
crypto_global_cleanup();
}
/** Read/create keys as needed, and echo our fingerprint to stdout. */
@ -1275,7 +1249,6 @@ static int
run_tor_main_loop(void)
{
handle_signals();
monotime_init();
timers_initialize();
initialize_mainloop_events();
@ -1387,54 +1360,13 @@ tor_run_main(const tor_main_configuration_t *tor_cfg)
{
int result = 0;
#ifdef _WIN32
#ifndef HeapEnableTerminationOnCorruption
#define HeapEnableTerminationOnCorruption 1
#endif
/* On heap corruption, just give up; don't try to play along. */
HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
/* SetProcessDEPPolicy is only supported on 32-bit Windows.
* (On 64-bit Windows it always fails, and some compilers don't like the
* PSETDEP cast.)
* 32-bit Windows defines _WIN32.
* 64-bit Windows defines _WIN32 and _WIN64. */
#ifndef _WIN64
/* Call SetProcessDEPPolicy to permanently enable DEP.
The function will not resolve on earlier versions of Windows,
and failure is not dangerous. */
HMODULE hMod = GetModuleHandleA("Kernel32.dll");
if (hMod) {
typedef BOOL (WINAPI *PSETDEP)(DWORD);
PSETDEP setdeppolicy = (PSETDEP)GetProcAddress(hMod,
"SetProcessDEPPolicy");
if (setdeppolicy) {
/* PROCESS_DEP_ENABLE | PROCESS_DEP_DISABLE_ATL_THUNK_EMULATION */
setdeppolicy(3);
}
}
#endif /* !defined(_WIN64) */
#endif /* defined(_WIN32) */
{
int bt_err = configure_backtrace_handler(get_version());
if (bt_err < 0) {
log_warn(LD_BUG, "Unable to install backtrace handler: %s",
strerror(-bt_err));
}
}
#ifdef EVENT_SET_MEM_FUNCTIONS_IMPLEMENTED
event_set_mem_functions(tor_malloc_, tor_realloc_, tor_free_);
#endif
init_protocol_warning_severity_level();
subsystems_init();
update_approx_time(time(NULL));
tor_threads_init();
tor_compress_init();
init_logging(0);
monotime_init();
init_protocol_warning_severity_level();
int argc = tor_cfg->argc + tor_cfg->argc_owned;
char **argv = tor_calloc(argc, sizeof(char*));

202
src/app/main/subsysmgr.c Normal file
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@ -0,0 +1,202 @@
/* Copyright (c) 2003-2004, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include "orconfig.h"
#include "app/main/subsysmgr.h"
#include "lib/err/torerr.h"
#include "lib/log/log.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* True iff we have checked tor_subsystems for consistency.
**/
static bool subsystem_array_validated = false;
/**
* True if a given subsystem is initialized. Expand this array if there
* are more than this number of subsystems. (We'd rather not
* dynamically allocate in this module.)
**/
static bool sys_initialized[128];
/**
* Exit with a raw assertion if the subsystems list is inconsistent;
* initialize the subsystem_initialized array.
**/
static void
check_and_setup(void)
{
if (subsystem_array_validated)
return;
raw_assert(ARRAY_LENGTH(sys_initialized) >= n_tor_subsystems);
memset(sys_initialized, 0, sizeof(sys_initialized));
int last_level = MIN_SUBSYS_LEVEL;
for (unsigned i = 0; i < n_tor_subsystems; ++i) {
const subsys_fns_t *sys = tor_subsystems[i];
if (sys->level < MIN_SUBSYS_LEVEL || sys->level > MAX_SUBSYS_LEVEL) {
fprintf(stderr, "BUG: Subsystem %s (at %u) has an invalid level %d. "
"It is supposed to be between %d and %d (inclusive).\n",
sys->name, i, sys->level, MIN_SUBSYS_LEVEL, MAX_SUBSYS_LEVEL);
raw_assert_unreached_msg("There is a bug in subsystem_list.c");
}
if (sys->level < last_level) {
fprintf(stderr, "BUG: Subsystem %s (at #%u) is in the wrong position. "
"Its level is %d; but the previous subsystem's level was %d.\n",
sys->name, i, sys->level, last_level);
raw_assert_unreached_msg("There is a bug in subsystem_list.c");
}
last_level = sys->level;
}
subsystem_array_validated = true;
}
/**
* Initialize all the subsystems; exit on failure.
**/
int
subsystems_init(void)
{
return subsystems_init_upto(MAX_SUBSYS_LEVEL);
}
/**
* Initialize all the subsystems whose level is less than or equal to
* <b>target_level</b>; exit on failure.
**/
int
subsystems_init_upto(int target_level)
{
check_and_setup();
for (unsigned i = 0; i < n_tor_subsystems; ++i) {
const subsys_fns_t *sys = tor_subsystems[i];
if (!sys->supported)
continue;
if (sys->level > target_level)
break;
if (sys_initialized[i])
continue;
int r = 0;
if (sys->initialize) {
// Note that the logging subsystem is designed so that it does no harm
// to log a message in an uninitialized state. These messages will be
// discarded for now, however.
log_debug(LD_GENERAL, "Initializing %s", sys->name);
r = sys->initialize();
}
if (r < 0) {
fprintf(stderr, "BUG: subsystem %s (at %u) initialization failed.\n",
sys->name, i);
raw_assert_unreached_msg("A subsystem couldn't be initialized.");
}
sys_initialized[i] = true;
}
return 0;
}
/**
* Shut down all the subsystems.
**/
void
subsystems_shutdown(void)
{
subsystems_shutdown_downto(MIN_SUBSYS_LEVEL - 1);
}
/**
* Shut down all the subsystems whose level is above <b>target_level</b>.
**/
void
subsystems_shutdown_downto(int target_level)
{
check_and_setup();
for (int i = (int)n_tor_subsystems - 1; i >= 0; --i) {
const subsys_fns_t *sys = tor_subsystems[i];
if (!sys->supported)
continue;
if (sys->level <= target_level)
break;
if (! sys_initialized[i])
continue;
if (sys->shutdown) {
log_debug(LD_GENERAL, "Shutting down %s", sys->name);
sys->shutdown();
}
sys_initialized[i] = false;
}
}
/**
* Run pre-fork code on all subsystems that declare any
**/
void
subsystems_prefork(void)
{
check_and_setup();
for (int i = (int)n_tor_subsystems - 1; i >= 0; --i) {
const subsys_fns_t *sys = tor_subsystems[i];
if (!sys->supported)
continue;
if (! sys_initialized[i])
continue;
if (sys->prefork) {
log_debug(LD_GENERAL, "Pre-fork: %s", sys->name);
sys->prefork();
}
}
}
/**
* Run post-fork code on all subsystems that declare any
**/
void
subsystems_postfork(void)
{
check_and_setup();
for (unsigned i = 0; i < n_tor_subsystems; ++i) {
const subsys_fns_t *sys = tor_subsystems[i];
if (!sys->supported)
continue;
if (! sys_initialized[i])
continue;
if (sys->postfork) {
log_debug(LD_GENERAL, "Post-fork: %s", sys->name);
sys->postfork();
}
}
}
/**
* Run thread-cleanup code on all subsystems that declare any
**/
void
subsystems_thread_cleanup(void)
{
check_and_setup();
for (int i = (int)n_tor_subsystems - 1; i >= 0; --i) {
const subsys_fns_t *sys = tor_subsystems[i];
if (!sys->supported)
continue;
if (! sys_initialized[i])
continue;
if (sys->thread_cleanup) {
log_debug(LD_GENERAL, "Thread cleanup: %s", sys->name);
sys->thread_cleanup();
}
}
}

24
src/app/main/subsysmgr.h Normal file
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@ -0,0 +1,24 @@
/* Copyright (c) 2003-2004, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef TOR_SUBSYSMGR_T
#define TOR_SUBSYSMGR_T
#include "lib/subsys/subsys.h"
extern const struct subsys_fns_t *tor_subsystems[];
extern const unsigned n_tor_subsystems;
int subsystems_init(void);
int subsystems_init_upto(int level);
void subsystems_shutdown(void);
void subsystems_shutdown_downto(int level);
void subsystems_prefork(void);
void subsystems_postfork(void);
void subsystems_thread_cleanup(void);
#endif

40
src/app/main/subsystem_list.c Normal file
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@ -0,0 +1,40 @@
/* Copyright (c) 2003-2004, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include "orconfig.h"
#include "app/main/subsysmgr.h"
#include "lib/cc/compat_compiler.h"
#include "lib/cc/torint.h"
#include "lib/compress/compress_sys.h"
#include "lib/crypt_ops/crypto_sys.h"
#include "lib/err/torerr_sys.h"
#include "lib/log/log_sys.h"
#include "lib/net/network_sys.h"
#include "lib/process/winprocess_sys.h"
#include "lib/thread/thread_sys.h"
#include "lib/time/time_sys.h"
#include "lib/tls/tortls_sys.h"
#include "lib/wallclock/wallclock_sys.h"
#include <stddef.h>
/**
* Global list of the subsystems in Tor, in the order of their initialization.
**/
const subsys_fns_t *tor_subsystems[] = {
&sys_winprocess, /* -100 */
&sys_torerr,
&sys_wallclock,
&sys_threads,
&sys_logging,
&sys_time,
&sys_network,
&sys_compress,
&sys_crypto,
&sys_tortls,
};
const unsigned n_tor_subsystems = ARRAY_LENGTH(tor_subsystems);

3
src/core/include.am
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@ -11,6 +11,8 @@ LIBTOR_APP_A_SOURCES = \
src/app/config/confparse.c \
src/app/config/statefile.c \
src/app/main/main.c \
src/app/main/subsystem_list.c \
src/app/main/subsysmgr.c \
src/core/crypto/hs_ntor.c \
src/core/crypto/onion_crypto.c \
src/core/crypto/onion_fast.c \
@ -191,6 +193,7 @@ noinst_HEADERS += \
src/app/config/statefile.h \
src/app/main/main.h \
src/app/main/ntmain.h \
src/app/main/subsysmgr.h \
src/core/crypto/hs_ntor.h \
src/core/crypto/onion_crypto.h \
src/core/crypto/onion_fast.h \

1
src/feature/control/control.c
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@ -92,6 +92,7 @@
#include "lib/crypt_ops/crypto_util.h"
#include "lib/encoding/confline.h"
#include "lib/evloop/compat_libevent.h"
#include "lib/version/torversion.h"
#include "feature/dircache/cached_dir_st.h"
#include "feature/control/control_connection_st.h"

1
src/feature/dirauth/shared_random_state.c
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@ -22,6 +22,7 @@
#include "feature/dirauth/shared_random_state.h"
#include "feature/dircommon/voting_schedule.h"
#include "lib/encoding/confline.h"
#include "lib/version/torversion.h"
#include "app/config/or_state_st.h"

1
src/feature/relay/router.c
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@ -49,6 +49,7 @@
#include "lib/encoding/confline.h"
#include "lib/osinfo/uname.h"
#include "lib/tls/tortls.h"
#include "lib/version/torversion.h"
#include "feature/dirauth/authmode.h"

2
src/include.am
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@ -25,6 +25,7 @@ include src/lib/osinfo/include.am
include src/lib/process/include.am
include src/lib/sandbox/include.am
include src/lib/string/include.am
include src/lib/subsys/include.am
include src/lib/smartlist_core/include.am
include src/lib/term/include.am
include src/lib/testsupport/include.am
@ -32,6 +33,7 @@ include src/lib/thread/include.am
include src/lib/time/include.am
include src/lib/tls/include.am
include src/lib/trace/include.am
include src/lib/version/include.am
include src/lib/wallclock/include.am
include src/trunnel/include.am

1
src/lib/compress/.may_include
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@ -8,5 +8,6 @@ lib/intmath/*.h
lib/log/*.h
lib/malloc/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/*.h
lib/thread/*.h

21
src/lib/compress/compress.c
View File

@ -29,10 +29,12 @@
#include "lib/compress/compress.h"
#include "lib/compress/compress_lzma.h"
#include "lib/compress/compress_none.h"
#include "lib/compress/compress_sys.h"
#include "lib/compress/compress_zlib.h"
#include "lib/compress/compress_zstd.h"
#include "lib/intmath/cmp.h"
#include "lib/malloc/malloc.h"
#include "lib/subsys/subsys.h"
#include "lib/thread/threads.h"
/** Total number of bytes allocated for compression state overhead. */
@ -660,7 +662,7 @@ tor_compress_state_size(const tor_compress_state_t *state)
}
/** Initialize all compression modules. */
void
int
tor_compress_init(void)
{
atomic_counter_init(&total_compress_allocation);
@ -668,6 +670,8 @@ tor_compress_init(void)
tor_zlib_init();
tor_lzma_init();
tor_zstd_init();
return 0;
}
/** Warn if we had any problems while setting up our compression libraries.
@ -677,5 +681,20 @@ tor_compress_init(void)
void
tor_compress_log_init_warnings(void)
{
// XXXX can we move this into tor_compress_init() after all? log.c queues
// XXXX log messages at startup.
tor_zstd_warn_if_version_mismatched();
}
static int
subsys_compress_initialize(void)
{
return tor_compress_init();
}
const subsys_fns_t sys_compress = {
.name = "compress",
.supported = true,
.level = -70,
.initialize = subsys_compress_initialize,
};

2
src/lib/compress/compress.h
View File

@ -89,7 +89,7 @@ void tor_compress_free_(tor_compress_state_t *state);
size_t tor_compress_state_size(const tor_compress_state_t *state);
void tor_compress_init(void);
int tor_compress_init(void);
void tor_compress_log_init_warnings(void);
struct buf_t;

14
src/lib/compress/compress_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file compress_sys.h
* \brief Declare subsystem object for the compress module
**/
#ifndef TOR_COMPRESS_SYS_H
#define TOR_COMPRESS_SYS_H
extern const struct subsys_fns_t sys_compress;
#endif /* !defined(TOR_COMPRESS_SYS_H) */

1
src/lib/compress/include.am
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@ -22,5 +22,6 @@ noinst_HEADERS += \
src/lib/compress/compress.h \
src/lib/compress/compress_lzma.h \
src/lib/compress/compress_none.h \
src/lib/compress/compress_sys.h \
src/lib/compress/compress_zlib.h \
src/lib/compress/compress_zstd.h

1
src/lib/crypt_ops/.may_include
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@ -12,6 +12,7 @@ lib/malloc/*.h
lib/intmath/*.h
lib/sandbox/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/testsupport.h
lib/thread/*.h
lib/log/*.h

47
src/lib/crypt_ops/crypto_init.c
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@ -20,6 +20,9 @@
#include "lib/crypt_ops/crypto_openssl_mgt.h"
#include "lib/crypt_ops/crypto_nss_mgt.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "lib/crypt_ops/crypto_sys.h"
#include "lib/subsys/subsys.h"
#include "siphash.h"
@ -202,3 +205,47 @@ tor_is_using_nss(void)
return 0;
#endif
}
static int
subsys_crypto_initialize(void)
{
if (crypto_early_init() < 0)
return -1;
crypto_dh_init();
return 0;
}
static void
subsys_crypto_shutdown(void)
{
crypto_global_cleanup();
}
static void
subsys_crypto_prefork(void)
{
crypto_prefork();
}
static void
subsys_crypto_postfork(void)
{
crypto_postfork();
}
static void
subsys_crypto_thread_cleanup(void)
{
crypto_thread_cleanup();
}
const struct subsys_fns_t sys_crypto = {
.name = "crypto",
.supported = true,
.level = -60,
.initialize = subsys_crypto_initialize,
.shutdown = subsys_crypto_shutdown,
.prefork = subsys_crypto_prefork,
.postfork = subsys_crypto_postfork,
.thread_cleanup = subsys_crypto_thread_cleanup,
};

14
src/lib/crypt_ops/crypto_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file log_crypto.h
* \brief Declare subsystem object for the crypto module.
**/
#ifndef TOR_CRYPTO_SYS_H
#define TOR_CRYPTO_SYS_H
extern const struct subsys_fns_t sys_crypto;
#endif /* !defined(TOR_CRYPTO_SYS_H) */

1
src/lib/crypt_ops/include.am
View File

@ -66,5 +66,6 @@ noinst_HEADERS += \
src/lib/crypt_ops/crypto_rand.h \
src/lib/crypt_ops/crypto_rsa.h \
src/lib/crypt_ops/crypto_s2k.h \
src/lib/crypt_ops/crypto_sys.h \
src/lib/crypt_ops/crypto_util.h \
src/lib/crypt_ops/digestset.h

2
src/lib/err/.may_include
View File

@ -1,3 +1,5 @@
orconfig.h
lib/cc/*.h
lib/err/*.h
lib/subsys/*.h
lib/version/*.h

6
src/lib/err/include.am
View File

@ -7,7 +7,8 @@ endif
src_lib_libtor_err_a_SOURCES = \
src/lib/err/backtrace.c \
src/lib/err/torerr.c
src/lib/err/torerr.c \
src/lib/err/torerr_sys.c
src_lib_libtor_err_testing_a_SOURCES = \
$(src_lib_libtor_err_a_SOURCES)
@ -16,4 +17,5 @@ src_lib_libtor_err_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
noinst_HEADERS += \
src/lib/err/backtrace.h \
src/lib/err/torerr.h
src/lib/err/torerr.h \
src/lib/err/torerr_sys.h

10
src/lib/err/torerr.c
View File

@ -122,6 +122,16 @@ tor_log_set_sigsafe_err_fds(const int *fds, int n)
n_sigsafe_log_fds = n;
}
/**
* Reset the list of emergency error fds to its default.
*/
void
tor_log_reset_sigsafe_err_fds(void)
{
int fds[] = { STDERR_FILENO };
tor_log_set_sigsafe_err_fds(fds, 1);
}
/**
* Set the granularity (in ms) to use when reporting fatal errors outside
* the logging system.

1
src/lib/err/torerr.h
View File

@ -39,6 +39,7 @@ void tor_raw_assertion_failed_msg_(const char *file, int line,
void tor_log_err_sigsafe(const char *m, ...);
int tor_log_get_sigsafe_err_fds(const int **out);
void tor_log_set_sigsafe_err_fds(const int *fds, int n);
void tor_log_reset_sigsafe_err_fds(void);
void tor_log_sigsafe_err_set_granularity(int ms);
int format_hex_number_sigsafe(unsigned long x, char *buf, int max_len);

40
src/lib/err/torerr_sys.c Normal file
View File

@ -0,0 +1,40 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file torerr_sys.c
* \brief Subsystem object for the error handling subsystem.
**/
#include "orconfig.h"
#include "lib/err/backtrace.h"
#include "lib/err/torerr.h"
#include "lib/err/torerr_sys.h"
#include "lib/subsys/subsys.h"
#include "lib/version/torversion.h"
#include <stddef.h>
static int
subsys_torerr_initialize(void)
{
if (configure_backtrace_handler(get_version()) < 0)
return -1;
tor_log_reset_sigsafe_err_fds();
return 0;
}
static void
subsys_torerr_shutdown(void)
{
tor_log_reset_sigsafe_err_fds();
clean_up_backtrace_handler();
}
const subsys_fns_t sys_torerr = {
.name = "err",
.level = -100,
.supported = true,
.initialize = subsys_torerr_initialize,
.shutdown = subsys_torerr_shutdown
};

14
src/lib/err/torerr_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file torerr_sys.h
* \brief Declare subsystem object for torerr.c
**/
#ifndef TOR_TORERR_SYS_H
#define TOR_TORERR_SYS_H
extern const struct subsys_fns_t sys_torerr;
#endif /* !defined(TOR_TORERR_SYS_H) */

4
src/lib/log/.may_include
View File

@ -9,7 +9,7 @@ lib/lock/*.h
lib/log/*.h
lib/malloc/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/*.h
lib/version/*.h
lib/wallclock/*.h
micro-revision.i

10
src/lib/log/include.am
View File

@ -7,9 +7,9 @@ endif
src_lib_libtor_log_a_SOURCES = \
src/lib/log/escape.c \
src/lib/log/git_revision.c \
src/lib/log/ratelim.c \
src/lib/log/log.c \
src/lib/log/log_sys.c \
src/lib/log/util_bug.c
if WIN32
@ -21,16 +21,10 @@ src_lib_libtor_log_testing_a_SOURCES = \
src_lib_libtor_log_testing_a_CPPFLAGS = $(AM_CPPFLAGS) $(TEST_CPPFLAGS)
src_lib_libtor_log_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
# Declare that these object files depend on micro-revision.i. Without this
# rule, we could try to build them before micro-revision.i was created.
src/lib/log/git_revision.$(OBJEXT) \
src/lib/log/src_lib_libtor_log_testing_a-git_revision.$(OBJEXT): \
micro-revision.i
noinst_HEADERS += \
src/lib/log/escape.h \
src/lib/log/git_revision.h \
src/lib/log/ratelim.h \
src/lib/log/log.h \
src/lib/log/log_sys.h \
src/lib/log/util_bug.h \
src/lib/log/win32err.h

3
src/lib/log/log.c
View File

@ -32,7 +32,8 @@
#define LOG_PRIVATE
#include "lib/log/log.h"
#include "lib/log/git_revision.h"
#include "lib/log/log_sys.h"
#include "lib/version/git_revision.h"
#include "lib/log/ratelim.h"
#include "lib/lock/compat_mutex.h"
#include "lib/smartlist_core/smartlist_core.h"

35
src/lib/log/log_sys.c Normal file
View File

@ -0,0 +1,35 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file log_sys.c
* \brief Setup and tear down the logging module.
**/
#include "orconfig.h"
#include "lib/subsys/subsys.h"
#include "lib/log/escape.h"
#include "lib/log/log.h"
#include "lib/log/log_sys.h"
static int
subsys_logging_initialize(void)
{
init_logging(0);
return 0;
}
static void
subsys_logging_shutdown(void)
{
logs_free_all();
escaped(NULL);
}
const subsys_fns_t sys_logging = {
.name = "log",
.supported = true,
.level = -90,
.initialize = subsys_logging_initialize,
.shutdown = subsys_logging_shutdown,
};

14
src/lib/log/log_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file log_sys.h
* \brief Declare subsystem object for the logging module.
**/
#ifndef TOR_LOG_SYS_H
#define TOR_LOG_SYS_H
extern const struct subsys_fns_t sys_logging;
#endif /* !defined(TOR_LOG_SYS_H) */

1
src/lib/net/.may_include
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@ -11,5 +11,6 @@ lib/lock/*.h
lib/log/*.h
lib/net/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/*.h
lib/malloc/*.h

2
src/lib/net/include.am
View File

@ -11,6 +11,7 @@ src_lib_libtor_net_a_SOURCES = \
src/lib/net/buffers_net.c \
src/lib/net/gethostname.c \
src/lib/net/inaddr.c \
src/lib/net/network_sys.c \
src/lib/net/resolve.c \
src/lib/net/socket.c \
src/lib/net/socketpair.c
@ -28,6 +29,7 @@ noinst_HEADERS += \
src/lib/net/inaddr.h \
src/lib/net/inaddr_st.h \
src/lib/net/nettypes.h \
src/lib/net/network_sys.h \
src/lib/net/resolve.h \
src/lib/net/socket.h \
src/lib/net/socketpair.h \

44
src/lib/net/network_sys.c Normal file
View File

@ -0,0 +1,44 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file network_sys.c
* \brief Subsystem object for networking setup.
**/
#include "orconfig.h"
#include "lib/subsys/subsys.h"
#include "lib/net/network_sys.h"
#include "lib/net/resolve.h"
#include "lib/net/socket.h"
#ifdef _WIN32
#include <winsock2.h>
#include <windows.h>
#endif
static int
subsys_network_initialize(void)
{
if (network_init() < 0)
return -1;
return 0;
}
static void
subsys_network_shutdown(void)
{
#ifdef _WIN32
WSACleanup();
#endif
tor_free_getaddrinfo_cache();
}
const subsys_fns_t sys_network = {
.name = "network",
.level = -90,
.supported = true,
.initialize = subsys_network_initialize,
.shutdown = subsys_network_shutdown,
};

14
src/lib/net/network_sys.h Normal file
View File

@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file log_network.h
* \brief Declare subsystem object for the network module.
**/
#ifndef TOR_NETWORK_SYS_H
#define TOR_NETWORK_SYS_H
extern const struct subsys_fns_t sys_network;
#endif /* !defined(TOR_NETWORK_SYS_H) */

1
src/lib/process/.may_include
View File

@ -11,6 +11,7 @@ lib/malloc/*.h
lib/net/*.h
lib/process/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/*.h
lib/thread/*.h

6
src/lib/process/include.am
View File

@ -12,7 +12,8 @@ src_lib_libtor_process_a_SOURCES = \
src/lib/process/restrict.c \
src/lib/process/setuid.c \
src/lib/process/subprocess.c \
src/lib/process/waitpid.c
src/lib/process/waitpid.c \
src/lib/process/winprocess_sys.c
src_lib_libtor_process_testing_a_SOURCES = \
$(src_lib_libtor_process_a_SOURCES)
@ -26,4 +27,5 @@ noinst_HEADERS += \
src/lib/process/restrict.h \
src/lib/process/setuid.h \
src/lib/process/subprocess.h \
src/lib/process/waitpid.h
src/lib/process/waitpid.h \
src/lib/process/winprocess_sys.h

64
src/lib/process/winprocess_sys.c Normal file
View File

@ -0,0 +1,64 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file winprocess_sys.c
* \brief Subsystem object for windows process setup.
**/
#include "orconfig.h"
#include "lib/subsys/subsys.h"
#include "lib/process/winprocess_sys.h"
#include <stdbool.h>
#include <stddef.h>
#ifdef _WIN32
#include <windows.h>
#define WINPROCESS_SYS_ENABLED true
static int
subsys_winprocess_initialize(void)
{
#ifndef HeapEnableTerminationOnCorruption
#define HeapEnableTerminationOnCorruption 1
#endif
/* On heap corruption, just give up; don't try to play along. */
HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
/* SetProcessDEPPolicy is only supported on 32-bit Windows.
* (On 64-bit Windows it always fails, and some compilers don't like the
* PSETDEP cast.)
* 32-bit Windows defines _WIN32.
* 64-bit Windows defines _WIN32 and _WIN64. */
#ifndef _WIN64
/* Call SetProcessDEPPolicy to permanently enable DEP.
The function will not resolve on earlier versions of Windows,
and failure is not dangerous. */
HMODULE hMod = GetModuleHandleA("Kernel32.dll");
if (hMod) {
typedef BOOL (WINAPI *PSETDEP)(DWORD);
PSETDEP setdeppolicy = (PSETDEP)GetProcAddress(hMod,
"SetProcessDEPPolicy");
if (setdeppolicy) {
/* PROCESS_DEP_ENABLE | PROCESS_DEP_DISABLE_ATL_THUNK_EMULATION */
setdeppolicy(3);
}
}
#endif /* !defined(_WIN64) */
return 0;
}
#else /* !defined(_WIN32) */
#define WINPROCESS_SYS_ENABLED false
#define subsys_winprocess_initialize NULL
#endif /* defined(_WIN32) */
const subsys_fns_t sys_winprocess = {
.name = "winprocess",
.level = -100,
.supported = WINPROCESS_SYS_ENABLED,
.initialize = subsys_winprocess_initialize,
};

14
src/lib/process/winprocess_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file winprocess_sys.h
* \brief Declare subsystem object for winprocess.c
**/
#ifndef TOR_WINPROCESS_SYS_H
#define TOR_WINPROCESS_SYS_H
extern const struct subsys_fns_t sys_winprocess;
#endif /* !defined(TOR_WINPROCESS_SYS_H) */

1
src/lib/subsys/.may_include Normal file
View File

@ -0,0 +1 @@
orconfig.h

3
src/lib/subsys/include.am Normal file
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@ -0,0 +1,3 @@
noinst_HEADERS += \
src/lib/subsys/subsys.h

95
src/lib/subsys/subsys.h Normal file
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@ -0,0 +1,95 @@
/* Copyright (c) 2003-2004, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef TOR_SUBSYS_T
#define TOR_SUBSYS_T
#include <stdbool.h>
struct dispatch_connector_t;
/**
* A subsystem is a part of Tor that is initialized, shut down, configured,
* and connected to other parts of Tor.
*
* All callbacks are optional -- if a callback is set to NULL, the subsystem
* manager will treat it as a no-op.
*
* You should use c99 named-field initializers with this structure: we
* will be adding more fields, often in the middle of the structure.
**/
typedef struct subsys_fns_t {
/**
* The name of this subsystem. It should be a programmer-readable
* identifier.
**/
const char *name;
/**
* Whether this subsystem is supported -- that is, whether it is compiled
* into Tor. For most subsystems, this should be true.
**/
bool supported;
/**
* The 'initialization level' for the subsystem. It should run from -100
* through +100. The subsystems are initialized from lowest level to
* highest, and shut down from highest level to lowest.
**/
int level;
/**
* Initialize any global components of this subsystem.
*
* This function MAY rely on any lower-level subsystem being initialized.
*
* This function MUST NOT rely on any runtime configuration information;
* it is only for global state or pre-configuration state.
*
* (If you need to do any setup that depends on configuration, you'll need
* to declare a configuration callback. (Not yet designed))
*
* This function MUST NOT have any parts that can fail.
**/
int (*initialize)(void);
/**
* Connect a subsystem to the message dispatch system.
**/
int (*add_pubsub)(struct dispatch_connector_t *);
/**
* Perform any necessary pre-fork cleanup. This function may not fail.
*/
void (*prefork)(void);
/**
* Perform any necessary post-fork setup. This function may not fail.
*/
void (*postfork)(void);
/**
* Free any thread-local resources held by this subsystem. Called before
* the thread exits.
*/
void (*thread_cleanup)(void);
/**
* Free all resources held by this subsystem.
*
* This function is not allowed to fail.
**/
void (*shutdown)(void);
} subsys_fns_t;
#define MIN_SUBSYS_LEVEL -100
#define MAX_SUBSYS_LEVEL 100
/* All tor "libraries" (in src/libs) should have a subsystem level equal to or
* less than this value. */
#define SUBSYS_LEVEL_LIBS -10
#endif

1
src/lib/thread/.may_include
View File

@ -2,6 +2,7 @@ orconfig.h
lib/cc/*.h
lib/lock/*.h
lib/log/*.h
lib/subsys/*.h
lib/testsupport/*.h
lib/thread/*.h
lib/wallclock/*.h

16
src/lib/thread/compat_threads.c
View File

@ -14,9 +14,11 @@
#include "orconfig.h"
#include <stdlib.h>
#include "lib/thread/threads.h"
#include "lib/thread/thread_sys.h"
#include "lib/log/log.h"
#include "lib/log/util_bug.h"
#include "lib/subsys/subsys.h"
#include <string.h>
@ -109,3 +111,17 @@ atomic_counter_exchange(atomic_counter_t *counter, size_t newval)
return oldval;
}
#endif /* !defined(HAVE_WORKING_STDATOMIC) */
static int
subsys_threads_initialize(void)
{
tor_threads_init();
return 0;
}
const subsys_fns_t sys_threads = {
.name = "threads",
.supported = true,
.level = -95,
.initialize = subsys_threads_initialize,
};

5
src/lib/thread/include.am
View File

@ -23,5 +23,6 @@ src_lib_libtor_thread_testing_a_CPPFLAGS = $(AM_CPPFLAGS) $(TEST_CPPFLAGS)
src_lib_libtor_thread_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
noinst_HEADERS += \
src/lib/thread/threads.h \
src/lib/thread/numcpus.h
src/lib/thread/numcpus.h \
src/lib/thread/thread_sys.h \
src/lib/thread/threads.h

14
src/lib/thread/thread_sys.h Normal file
View File

@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file threads_sys.h
* \brief Declare subsystem object for threads library
**/
#ifndef TOR_THREADS_SYS_H
#define TOR_THREADS_SYS_H
extern const struct subsys_fns_t sys_threads;
#endif /* !defined(TOR_THREADS_SYS_H) */

1
src/lib/time/.may_include
View File

@ -4,6 +4,7 @@ lib/cc/*.h
lib/err/*.h
lib/intmath/*.h
lib/log/*.h
lib/subsys/*.h
lib/time/*.h
lib/wallclock/*.h

2
src/lib/time/include.am
View File

@ -7,6 +7,7 @@ endif
src_lib_libtor_time_a_SOURCES = \
src/lib/time/compat_time.c \
src/lib/time/time_sys.c \
src/lib/time/tvdiff.c
src_lib_libtor_time_testing_a_SOURCES = \
@ -16,4 +17,5 @@ src_lib_libtor_time_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
noinst_HEADERS += \
src/lib/time/compat_time.h \
src/lib/time/time_sys.h \
src/lib/time/tvdiff.h

26
src/lib/time/time_sys.c Normal file
View File

@ -0,0 +1,26 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file time_sys.c
* \brief Subsystem object for monotime setup.
**/
#include "orconfig.h"
#include "lib/subsys/subsys.h"
#include "lib/time/time_sys.h"
#include "lib/time/compat_time.h"
static int
subsys_time_initialize(void)
{
monotime_init();
return 0;
}
const subsys_fns_t sys_time = {
.name = "time",
.level = -90,
.supported = true,
.initialize = subsys_time_initialize,
};

14
src/lib/time/time_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file log_time.h
* \brief Declare subsystem object for the time module.
**/
#ifndef TOR_TIME_SYS_H
#define TOR_TIME_SYS_H
extern const struct subsys_fns_t sys_time;
#endif /* !defined(TOR_TIME_SYS_H) */

1
src/lib/tls/.may_include
View File

@ -11,6 +11,7 @@ lib/log/*.h
lib/malloc/*.h
lib/net/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/testsupport.h
lib/tls/*.h

1
src/lib/tls/include.am
View File

@ -36,5 +36,6 @@ noinst_HEADERS += \
src/lib/tls/tortls.h \
src/lib/tls/tortls_internal.h \
src/lib/tls/tortls_st.h \
src/lib/tls/tortls_sys.h \
src/lib/tls/x509.h \
src/lib/tls/x509_internal.h

14
src/lib/tls/tortls.c
View File

@ -7,6 +7,7 @@
#define TOR_X509_PRIVATE
#include "lib/tls/x509.h"
#include "lib/tls/x509_internal.h"
#include "lib/tls/tortls_sys.h"
#include "lib/tls/tortls.h"
#include "lib/tls/tortls_st.h"
#include "lib/tls/tortls_internal.h"
@ -15,6 +16,7 @@
#include "lib/crypt_ops/crypto_rsa.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "lib/net/socket.h"
#include "lib/subsys/subsys.h"
#ifdef _WIN32
#include <winsock2.h>
@ -440,3 +442,15 @@ tor_tls_verify(int severity, tor_tls_t *tls, crypto_pk_t **identity)
return rv;
}
static void
subsys_tortls_shutdown(void)
{
tor_tls_free_all();
}
const subsys_fns_t sys_tortls = {
.name = "tortls",
.level = -50,
.shutdown = subsys_tortls_shutdown
};

14
src/lib/tls/tortls_sys.h Normal file
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@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file tortls_sys.h
* \brief Declare subsystem object for the tortls module
**/
#ifndef TOR_TORTLS_SYS_H
#define TOR_TORTLS_SYS_H
extern const struct subsys_fns_t sys_tortls;
#endif /* !defined(TOR_TORTLS_SYS_H) */

3
src/lib/version/.may_include Normal file
View File

@ -0,0 +1,3 @@
orconfig.h
micro-revision.i
lib/version/*.h

2
src/lib/log/git_revision.c → src/lib/version/git_revision.c
View File

@ -4,7 +4,7 @@
/* See LICENSE for licensing information */
#include "orconfig.h"
#include "lib/log/git_revision.h"
#include "lib/version/git_revision.h"
/** String describing which Tor Git repository version the source was
* built from. This string is generated by a bit of shell kludging in

0
src/lib/log/git_revision.h → src/lib/version/git_revision.h
View File

25
src/lib/version/include.am Normal file
View File

@ -0,0 +1,25 @@
noinst_LIBRARIES += src/lib/libtor-version.a
if UNITTESTS_ENABLED
noinst_LIBRARIES += src/lib/libtor-version-testing.a
endif
src_lib_libtor_version_a_SOURCES = \
src/lib/version/git_revision.c \
src/lib/version/version.c
src_lib_libtor_version_testing_a_SOURCES = \
$(src_lib_libtor_version_a_SOURCES)
src_lib_libtor_version_testing_a_CPPFLAGS = $(AM_CPPFLAGS) $(TEST_CPPFLAGS)
src_lib_libtor_version_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
# Declare that these object files depend on micro-revision.i. Without this
# rule, we could try to build them before micro-revision.i was created.
src/lib/version/git_revision.$(OBJEXT) \
src/lib/version/src_lib_libtor_version_testing_a-git_revision.$(OBJEXT): \
micro-revision.i
noinst_HEADERS += \
src/lib/version/git_revision.h \
src/lib/version/torversion.h

12
src/lib/version/torversion.h Normal file
View File

@ -0,0 +1,12 @@
/* Copyright 2001-2004 Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef TOR_VERSION_H
#define TOR_VERSION_H
const char *get_version(void);
const char *get_short_version(void);
#endif /* !defined(TOR_VERSION_H) */

50
src/lib/version/version.c Normal file
View File

@ -0,0 +1,50 @@
/* Copyright 2001-2004 Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include "orconfig.h"
#include "lib/version/torversion.h"
#include "lib/version/git_revision.h"
#include <stdio.h>
#include <string.h>
/** A shorter version of this Tor process's version, for export in our router
* descriptor. (Does not include the git version, if any.) */
static const char the_short_tor_version[] =
VERSION
#ifdef TOR_BUILD_TAG
" ("TOR_BUILD_TAG")"
#endif
"";
#define MAX_VERSION_LEN 128
/** The version of this Tor process, possibly including git version */
static char the_tor_version[MAX_VERSION_LEN] = "";
/** Return the current Tor version. */
const char *
get_version(void)
{
if (the_tor_version[0] == 0) {
if (strlen(tor_git_revision)) {
snprintf(the_tor_version, sizeof(the_tor_version),
"%s (git-%s)", the_short_tor_version, tor_git_revision);
} else {
snprintf(the_tor_version, sizeof(the_tor_version),
"%s", the_short_tor_version);
}
the_tor_version[sizeof(the_tor_version)-1] = 0;
}
return the_tor_version;
}
/** Return the current Tor version, without any git tag. */
const char *
get_short_version(void)
{
return the_short_tor_version;
}

1
src/lib/wallclock/.may_include
View File

@ -3,4 +3,5 @@ lib/cc/*.h
lib/err/*.h
lib/wallclock/*.h
lib/string/*.h
lib/subsys/*.h
lib/testsupport/*.h

16
src/lib/wallclock/approx_time.c
View File

@ -9,7 +9,9 @@
**/
#include "orconfig.h"
#include "lib/subsys/subsys.h"
#include "lib/wallclock/approx_time.h"
#include "lib/wallclock/wallclock_sys.h"
/* =====
* Cached time
@ -41,3 +43,17 @@ update_approx_time(time_t now)
cached_approx_time = now;
}
#endif /* !defined(TIME_IS_FAST) */
static int
subsys_wallclock_initialize(void)
{
update_approx_time(time(NULL));
return 0;
}
const subsys_fns_t sys_wallclock = {
.name = "wallclock",
.supported = true,
.level = -99,
.initialize = subsys_wallclock_initialize,
};

3
src/lib/wallclock/include.am
View File

@ -19,4 +19,5 @@ noinst_HEADERS += \
src/lib/wallclock/approx_time.h \
src/lib/wallclock/timeval.h \
src/lib/wallclock/time_to_tm.h \
src/lib/wallclock/tor_gettimeofday.h
src/lib/wallclock/tor_gettimeofday.h \
src/lib/wallclock/wallclock_sys.h

14
src/lib/wallclock/wallclock_sys.h Normal file
View File

@ -0,0 +1,14 @@
/* Copyright (c) 2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file wallclock_sys.h
* \brief Declare subsystem object for the wallclock module.
**/
#ifndef TOR_WALLCLOCK_SYS_H
#define TOR_WALLCLOCK_SYS_H
extern const struct subsys_fns_t sys_wallclock;
#endif /* !defined(TOR_WALLCLOCK_SYS_H) */

1
src/rust/build.rs
View File

@ -162,6 +162,7 @@ pub fn main() {
cfg.component("tor-malloc");
cfg.component("tor-wallclock");
cfg.component("tor-err-testing");
cfg.component("tor-version-testing");
cfg.component("tor-intmath-testing");
cfg.component("tor-ctime-testing");
cfg.component("curve25519_donna");

7
src/test/bench.c
View File

@ -24,6 +24,7 @@
#include "core/or/circuitlist.h"
#include "app/config/config.h"
#include "app/main/subsysmgr.h"
#include "lib/crypt_ops/crypto_curve25519.h"
#include "lib/crypt_ops/crypto_dh.h"
#include "core/crypto/onion_ntor.h"
@ -690,9 +691,10 @@ main(int argc, const char **argv)
char *errmsg;
or_options_t *options;
tor_threads_init();
subsystems_init_upto(SUBSYS_LEVEL_LIBS);
flush_log_messages_from_startup();
tor_compress_init();
init_logging(1);
if (argc == 4 && !strcmp(argv[1], "diff")) {
const int N = 200;
@ -739,7 +741,6 @@ main(int argc, const char **argv)
init_protocol_warning_severity_level();
options = options_new();
init_logging(1);
options->command = CMD_RUN_UNITTESTS;
options->DataDirectory = tor_strdup("");
options->KeyDirectory = tor_strdup("");

10
src/test/fuzz/fuzzing_common.c
View File

@ -3,12 +3,14 @@
#define CRYPTO_ED25519_PRIVATE
#include "orconfig.h"
#include "core/or/or.h"
#include "app/main/subsysmgr.h"
#include "lib/err/backtrace.h"
#include "app/config/config.h"
#include "test/fuzz/fuzzing.h"
#include "lib/compress/compress.h"
#include "lib/crypt_ops/crypto_ed25519.h"
#include "lib/crypt_ops/crypto_init.h"
#include "lib/version/torversion.h"
static or_options_t *mock_options = NULL;
static const or_options_t *
@ -94,12 +96,10 @@ disable_signature_checking(void)
static void
global_init(void)
{
tor_threads_init();
tor_compress_init();
subsystems_init_upto(SUBSYS_LEVEL_LIBS);
flush_log_messages_from_startup();
/* Initialise logging first */
init_logging(1);
configure_backtrace_handler(get_version());
tor_compress_init();
if (crypto_global_init(0, NULL, NULL) < 0)
abort();

20
src/test/testing_common.c
View File

@ -25,6 +25,8 @@
#include "lib/compress/compress.h"
#include "lib/evloop/compat_libevent.h"
#include "lib/crypt_ops/crypto_init.h"
#include "lib/version/torversion.h"
#include "app/main/subsysmgr.h"
#include <stdio.h>
#ifdef HAVE_FCNTL_H
@ -230,12 +232,12 @@ void
tinytest_prefork(void)
{
free_pregenerated_keys();
crypto_prefork();
subsystems_prefork();
}
void
tinytest_postfork(void)
{
crypto_postfork();
subsystems_postfork();
init_pregenerated_keys();
}
@ -250,24 +252,15 @@ main(int c, const char **v)
int loglevel = LOG_ERR;
int accel_crypto = 0;
/* We must initialise logs before we call tor_assert() */
init_logging(1);
subsystems_init_upto(SUBSYS_LEVEL_LIBS);
update_approx_time(time(NULL));
options = options_new();
tor_threads_init();
tor_compress_init();
network_init();
monotime_init();
struct tor_libevent_cfg cfg;
memset(&cfg, 0, sizeof(cfg));
tor_libevent_initialize(&cfg);
control_initialize_event_queue();
configure_backtrace_handler(get_version());
for (i_out = i = 1; i < c; ++i) {
if (!strcmp(v[i], "--warn")) {
@ -294,6 +287,7 @@ main(int c, const char **v)
s.masks[LOG_WARN-LOG_ERR] |= LD_BUG;
add_stream_log(&s, "", fileno(stdout));
}
flush_log_messages_from_startup();
init_protocol_warning_severity_level();
options->command = CMD_RUN_UNITTESTS;
@ -334,8 +328,6 @@ main(int c, const char **v)
free_pregenerated_keys();
crypto_global_cleanup();
if (have_failed)
return 1;
else