asterisk

Commit Graph

Author	SHA1	Message	Date
Richard Mudgett	b2d2906445	sched.c: Ensure oldest expiring entry runs first. This patch is part of a series to resolve deadlocks in chan_sip.c. * Updated sched unit test to check new behavior. ASTERISK-25023 Change-Id: Ib69437327b3cda5e14c4238d9ff91b2531b34ef3	9 years ago
Walter Doekes	336cae73cc	app_chanspy: Fix occasional deadlock with ChanSpy and Local channels. Channel masquerading had a conflict with autochannel locking. When locking autochannel->channel, the channel is fetched from the autochannel and then locked. During the fetch, the autochannel -- which has no locks itself -- can be modified by someone who owns the channel lock. That means that the value of autochan->channel cannot be trusted until you hold the lock. In practice, this caused problems with Local channels getting masqueraded away while the ChanSpy attempted to get info from that channel. The old channel which was about to get removed got locked, but the new (replaced) channel got unlocked (no-op). Because the replaced channel was now locked (and would never get unlocked), it couldn't get removed from the channel list in a timely manner, and would now cause deadlocks when iterating over the channel list. This change checks the autochannel after locking the channel for changes to the autochannel. If the channel had been changed, the lock is reobtained on the new channel. In theory it seems possible that after this fix, the lock attempt on the old (wrong) channel can be on an already destroyed lock, maybe causing a crash. But that hasn't been observed in the wild and is harder induce than the current deadlock. Thanks go to Filip Frank for suggesting a fix similar to this and especially to IRC user hexanol for pointing out why this deadlock was possible and testing this fix. And to Richard for catching my rookie while loop mistake ;) ASTERISK-25321 #close Change-Id: I293ae0014e531cd0e675c3f02d1d118a98683def	9 years ago
zuul	9b0a96b947	Merge "loader: Retry dlopen when loading fails" into 13	9 years ago
George Joseph	53f57001f2	loader: Retry dlopen when loading fails Although we use the RTLD_LAZY flag when calling dlopen the first time on a module, this only defers resolution for function calls. Pointer references to functions are determined at link time so dlopen expects them to be there. Since we don't cross-module link, pointers to functions in other modules won't be available and dlopen will fail. Doing a "hardened" build also causes problems because it typically sets "-z now" on the ld command line which overrides RTLD_LAZY at run time. If the failing module isn't a GLOBAL_SYMBOLS module, then dlopen will be called again after all the GLOBAL_SYMBOLS modules have been loaded and they'll eventually resolve. If the calling module IS a GLOBAL_SYMBOLS module itself and a third module depends on it, then there's an issue because the second time through the dlopen loop, GLOBAL_SYMBOLS modules aren't given any special treatment and since the order in which dlopen is called isn't deterministic, the dependent may again be tried before the module it needs is loaded. Simple solution: Save modules that fail load_resource because of a dlopen error in a list and retry them immediately after the first pass. Keep retrying until the failed list is empty or we reach a #defined max retries. Error messages are suppressed until the final pass which also gets rid of those confusing error messages about module failures that are later corrected. Change-Id: Iddae1d97cd2f00b94e61662447432765755f64bb	9 years ago
Kevin Harwell	40d9e9e238	bridge.c: Crash during attended transfer when missing a local channel half It's possible for the transferer channel to get hung up early during the attended transfer process. For instance, a phone may send a "bye" immediately upon receiving a sip notify that contains a sip frag 100 (I'm looking at you Jitsi). When this occurs a race begins between the transferer being hung up and completion of the transfer code. If the channel hangs up too early during a transfer involving stasis bridging for instance, then when the created local channel goes to look up its swap channel (and associated datastore) it can't find it (since it is no longer in the bridge) thus it fails to enter the stasis application. Consequently, the created local channel(s) hang up as well. If the timing is just right then the bridging code attempts to add the message link with missing local channel(s). Hence the crash. Unfortunately, there is no great way to solve the problem of the unexpected "bye". While we can't guarantee we won't receive an early hangup, and in this case still fail to enter the stasis application, we can make it so asterisk does not crash. This patch does just that by locking the local channel structure, checking that the local channel's peer has not been lost, and then continuing. This keeps the local channel's peer from being ripped out from underneath it by the local/unreal hangup code while attempting to set the stasis message link. ASTERISK-25771 Change-Id: Ie6d6061e34c7c95f07116fffac9a09e5d225c880	9 years ago
zuul	9e896540c8	Merge "build-system: Allow building with static pjproject" into 13	9 years ago
Joshua Colp	86124f63c8	Merge "SIP diversion: Fix REDIRECTING(reason) value inconsistencies." into 13	9 years ago
Scott Griepentrog	1ea7a5a774	CHAOS: cleanup possible null vars on msg alloc failure In message.c, if msg_alloc fails to init the string field, vars may be null, so use a null tolerant cleanup. In res_pjsip_messaging.c, if msg_data_create fails, mdata will be null, so use a null tolerant cleanup. ASTERISK-25323 Change-Id: Ic2d55c2c3750d5616e2a05ea92a19c717507ff56	9 years ago
Richard Mudgett	4165ea7778	SIP diversion: Fix REDIRECTING(reason) value inconsistencies. Previous chan_sip behavior: Before this patch chan_sip would always strip any quotes from an incoming reason and pass that value up as the REDIRECTING(reason). For an outgoing reason value, chan_sip would check the value against known values and quote any it didn't recognize. Incoming 480 response message reason text was just assigned to the REDIRECTING(reason). Previous chan_pjsip behavior: Before this patch chan_pjsip would always pass the incoming reason value up as the REDIRECTING(reason). For an outgoing reason value, chan_pjsip would send the reason value as passed down. With this patch: Both channel drivers match incoming reason values with values documented by REDIRECTING(reason) and values documented by RFC5806 regardless of whether they are quoted or not. RFC5806 values are mapped to the equivalent REDIRECTING(reason) documented value and is set in REDIRECTING(reason). e.g., an incoming RFC5806 'unconditional' value or a quoted string version ('"unconditional"') is converted to REDIRECTING(reason)'s 'cfu' value. The user's dialplan only needs to deal with 'cfu' instead of any of the aliases. The incoming 480 response reason text supported by chan_sip checks for known reason values and if not matched then puts quotes around the reason string and assigns that to REDIRECTING(reason). Both channel drivers send outgoing known REDIRECTING(reason) values as the unquoted RFC5806 equivalent. User custom values are either sent as is or with added quotes if SIP doesn't allow a character within the value as part of a RFC3261 Section 25.1 token. Note that there are still limitations on what characters can be put in a custom user value. e.g., embedding quotes in the middle of the reason string is silly and just going to cause you grief. * Setting a REDIRECTING(reason) value now recognizes RFC5806 aliases. e.g., Setting REDIRECTING(reason) to 'unconditional' is converted to the 'cfu' value. * Added missing malloc() NULL return check in res_pjsip_diversion.c set_redirecting_reason(). * Fixed potential read from a stale pointer in res_pjsip_diversion.c add_diversion_header(). The reason string needed to be copied into the tdata memory pool to ensure that the string would always be available. Otherwise, if the reason string returned by reason_code_to_str() was a user's reason string then the string could be freed later by another thread. Change-Id: Ifba83d23a195a9f64d55b9c681d2e62476b68a87	9 years ago
George Joseph	b59956a875	build-system: Allow building with static pjproject Background here: http://lists.digium.com/pipermail/asterisk-dev/2016-January/075266.html From CHANGES: * To help insure that Asterisk is compiled and run with the same known version of pjproject, a new option (--with-pjproject-bundled) has been added to ./configure. When specified, the version of pjproject specified in third-party/versions.mak will be downloaded and configured. When you make Asterisk, the build process will also automatically build pjproject and Asterisk will be statically linked to it. Once a particular version of pjproject is configured and built, it won't be configured or built again unless you run a 'make distclean'. To facilitate testing, when 'make install' is run, the pjsua and pjsystest utilities and the pjproject python bindings will be installed in ASTDATADIR/third-party/pjproject. The default behavior remains building with the shared pjproject installation, if any. Building: All you have to do is include the --with-pjproject-bundled option on the ./configure command line (and remove any existing --with-pjproject option if specified). Everything else is automatic. Behind the scenes: The top-level Makefile was modified to include 'third-party' in the list of MOD_SUBDIRS. The third-party directory was created to contain any third party packages that may be needed in the future. Its Makefile automatically iterates over any subdirectories passing on targets. The third-party/pjproject directory was created to house the pjproject source distribution. Its Makefile contains targets to download, patch configure, generate dependencies, compile libs, apps and python bindings, sanitized build.mak and generate a symbols list. When bootstrap.sh is run, it automatically includes the configure.m4 file in third-party/pjproject. This file has a macro to download and conifgure pjproject and get and set PJPROJECT_INCLUDE, PJPROJECT_DIR and PJPROJECT_BUNDLED. It also tests for the capabilities like PJ_TRANSACTION_GRP_LOCK by parsing preprocessor output as opposed to trying to compile. Of course, bootstrap.sh is only run once and the configure file is incldued in the patch. When configure is run with the new options, the macro in configure.m4 triggers the download, patch, conifgure and tests. No compilation is performed at this time. The downloaded tarball is cached in /tmp so it doesn't get downloaded again on a distclean. When make is run in the top-level Asterisk source directory, it will automatically descend all the subdirectories in third_party just as it does for addons, apps, etc. The top-level Makefile makes sure that the 'third-party' is built before 'main' so that dependencies from the other directories are built first. When main does build, a new shared library (libasteriskpj) is created that links statically to the pjproject .a files and exports all their symbols. The asterisk binary links to that, just as it does with libasteriskssl. When Asterisk is installed, the pjsua and pjsystest apps, and the pjproject python bindings are installed in ASTDATADIR/third-party/pjproject. This will facilitate testing, including running the testsuite which will be updated to check that directory for the pjsua module ahead of the system python library. Modules should continue to depend on pjproject if they use pjproject APIs directly. They should not care about the implementation. No changes to any res_pjsip modules were made. Change-Id: Ia7a60c28c2e9ba9537c5570f933c1ebcb20a3103	9 years ago
zuul	5393a4963a	Merge "bridge core: Add owed T.38 terminate when channel leaves a bridge." into 13	9 years ago
zuul	dbf52dd7d7	Merge "channel api: Create is_t38_active accessor functions." into 13	9 years ago
zuul	4c85d7b612	Merge "bridge_channel: Don't settle owed events on an optimization." into 13	9 years ago
zuul	94f3198c90	Merge "channel.c: Route all control frames to a channel through the same code." into 13	9 years ago
Richard Mudgett	221422be50	bridge core: Add owed T.38 terminate when channel leaves a bridge. The channel is now going to get T.38 terminated when it leaves the bridging system and the bridged peers are going to get T.38 terminated as well. ASTERISK-25582 Change-Id: I77a9205979910210e3068e1ddff400dbf35c4ca7	9 years ago
Richard Mudgett	0a5bc64491	channel api: Create is_t38_active accessor functions. ASTERISK-25582 Change-Id: I69451920b122de7ee18d15bb231c80ea7067a22b	9 years ago
Richard Mudgett	513638a5f4	bridge_channel: Don't settle owed events on an optimization. Local channel optimization could cause DTMF digits to be duplicated. Pending DTMF end events would be posted to a bridge when the local channel optimizes out and is replaced by the channel further down the chain. When the real digit ends, the channel would get another DTMF end posted to the bridge. A -- LocalA;1/n -- LocalA;2/n -- LocalB;1 -- LocalB;2 -- B 1) LocalA has the /n flag to prevent optimization. 2) B is sending DTMF to A through the local channel chain. 3) When LocalB optimizes out it can move B to the position of LocalB;1 4) Without this patch, when B swaps with LocalB;1 then LocalB;1 would settle an owed DTMF end to the bridge toward LocalA;2. 5) When B finally ends its DTMF it sends the DTMF end down the chain. 6) Without this patch, A would hear the DTMF digit end when LocalB optimizes out and when B ends the original digit. ASTERISK-25582 Change-Id: I1bbd28b8b399c0fb54985a5747f330a4cd2aa251	9 years ago
Richard Mudgett	7c4495cb70	channel.c: Route all control frames to a channel through the same code. Frame hooks can conceivably return a control frame in exchange for an audio frame inside ast_write(). Those returned control frames were not handled quite the same as if they were sent to ast_indicate(). Now it doesn't matter if you use ast_write() to send an AST_FRAME_CONTROL to a channel or ast_indicate(). ASTERISK-25582 Change-Id: I5775f41421aca2b510128198e9b827bf9169629b	9 years ago
George Joseph	48d713a832	sorcery: Refactor create, update and delete to better deal with caches The ast_sorcery_create, update and delete function have been refactored to better deal with caches and errors. The action is now called on all non-caching wizards first. If ANY succeed, the action is called on all caching wizards and the observers are notified. This way we don't put something in the cache (or update or delete) before knowing the action was performed in at least 1 backend and we only call the observers once even if there were multiple writable backends. ast_sorcery_create was never adding to caches in the first place which was preventing contacts from getting added to a memory_cache when they were created. In turn this was causing memory_cache to emit errors if the contact was deleted before being retrieved (which would have populated the cache). ASTERISK-25811 #close Reported-by: Ross Beer Change-Id: Id5596ce691685a79886e57b0865888458d6e7b46	9 years ago
Richard Mudgett	5a3a857dd6	cel.c: Fix mismatch in ast_cel_track_event() return type. The return type of ast_cel_track_event() is not large enough to return all 64 potential bits of the event enable mask. Fortunately, the defined CEL events do not really need all 64 bits and the return value is only used to determine if the requested CEL event is enabled. * Made the ast_cel_track_event() return 0 or 1 only so the return value can fit inside an int type instead of zero or a truncated 64 bit non-zero value. Change-Id: I783d932320db11a95c7bf7636a72b6fe2566904c	9 years ago
Corey Farrell	ac00c6bc2d	main/asterisk.c: Reverse #if statement in listener() to fix code folding. listener() opens the same code block in two places (#if and #else). This confuses some folding editors causing it to think that an extra code block was opened. Folding in 'geany' causes all code after listener() to be folded as if it were part of that procedure. ASTERISK-24813 #close Change-Id: I4b8c766e6c91e327dd445e8c18f8a6f268acd961	9 years ago
Mark Michelson	6a799cd78f	Check for OpenSSL defines before trying to use them. The SSL_OP_NO_TLSv1_1 and SSL_OP_NO_TLSv1_2 defines did not exist prior to OpenSSL version 1.0.1. A recent commit attempts to, by default, set these options, which can cause problems on systems with older OpenSSL installations. This commit adds a configure script check for those defines and will not attempt to make use of those if they do not exist. We will print a warning urging the user to upgrade their OpenSSL installation if those defines are not present. Change-Id: I6a2eb9a43fd0738b404d8f6f2cf4b5c22d9d752d	9 years ago
Kevin Harwell	f55f79edba	Merge "AST-2016-003 udptl.c: Fix uninitialized values." into 13	9 years ago
Richard Mudgett	c6b1b2b1c8	AST-2016-003 udptl.c: Fix uninitialized values. Sending UDPTL packets to Asterisk with the right amount of missing sequence numbers and enough redundant 0-length IFP packets, can make Asterisk crash. ASTERISK-25603 #close Reported by: Walter Doekes ASTERISK-25742 #close Reported by: Torrey Searle Change-Id: I97df8375041be986f3f266ac1946a538023a5255	9 years ago
Joshua Colp	f8acadde2c	AST-2016-001 http: Provide greater control of TLS and set modern defaults. This change exposes the configuration of various aspects of the TLS support and sets the default to the modern standards. The TLS cipher is now set to the best values according to the Mozilla OpSec team, different TLS versions can now be disabled, and the cipher order can be forced to be that of the server instead of the client. ASTERISK-24972 #close Change-Id: I0a10f2883f7559af5e48dee0901251dbf30d45b8	9 years ago
George Joseph	8804d0973c	build_system: Fix some warnings highlighted by clang Fix some warnings found with clang. Change-Id: I5195b6189b148c2ee3ed4a19d015a6d4ef3e77bd	9 years ago
Mark Michelson	afdf8e5d5c	Merge "config: Allow options to register when documentation is unavailable." into 13	9 years ago
Richard Mudgett	2a9e623ff9	config_options.c: Fix warning message wording. Change-Id: I915ea437936320393afde0e7552cf0a980a6b2e4	9 years ago
Joshua Colp	f22074e5d9	config: Allow options to register when documentation is unavailable. The config options framework is strict in that configuration options must be documented unless XML documentation support is not available. In practice this is useful as it ensures documentation exists however in off-nominal cases this can cause strange problems. If it is expected that a config option has a non-zero or non-empty default value but the config option documentation is unavailable this reasonable expectation will not be met. This can cause obscure crashes and weirdness depending on how the code handles it. This change tweaks the behavior to ensure that the config option is still allowed to register, apply default values, and be set when devmode is not enabled. If devmode is enabled then the option can NOT be set. This also does not remove the initial documentation error message that is output on load when registering the configuration option. ASTERISK-25725 #close Change-Id: Iec42fca6b35f31326c33fcdc25473f6fd7bc8af8	9 years ago
Richard Mudgett	1c95b211a0	logger.c: Fix buffer overrun found by address sanitizer. The null terminator of the tail struct member was not being allocated when no logger.conf config file is installed. ASTERISK-25714 #close Reported by: Badalian Vyacheslav Change-Id: I45770fdd08af39506a3bc33ba279c4f16e047a30	9 years ago
Diederik de Groot	c68c66c61f	main/asterisk.c: ast_el_read_char Make sure buf[res] is not accessed at res=-1 (buffer underrun). Address Sanitizer will complain about this quite loudly. ASTERISK-24801 #close Change-Id: Ifcd7f691310815a31756b76067c56fba299d3ae9	9 years ago
Richard Mudgett	0ab89182d9	taskprocessor.c: Increase CLI "core ping taskprocessor" timeout. Change-Id: I4892d6acbb580d6c207d006341eaf5e0f8f2a029	9 years ago
Richard Mudgett	a2a8ea3330	taskprocessor.c: Fix some taskprocessor unrefs. You have to call ast_taskprocessor_unref() outside of the taskprocessor implementation code. Taskprocessor use since v12 has become more transient than just the singleton uses in earlier versions. Change-Id: If7675299924c0cc65f2a43a85254e6f06f2d61bb	9 years ago
Joshua Colp	33af878768	Merge "main/config: Clean config maps on shutdown." into 13	10 years ago
Joshua Colp	d690b88a1e	Merge "bridge_basic: don't play an attended transfer fail sound after target hangs up" into 13	10 years ago
Joshua Colp	aaa52a2a05	Merge "bridge_basic: don't cache xferfailsound during an attended transfer" into 13	10 years ago
Joshua Colp	0aa47e11e1	Merge "taskprocessor.c: Simplify ast_taskprocessor_get() return code." into 13	10 years ago
Corey Farrell	3f5f30cf82	main/config: Clean config maps on shutdown. ASTERISK-25700 #close Change-Id: I096da84f9c62c6095f68bcf98eac4b7c7868e808	10 years ago
Kevin Harwell	660fedecb7	bridge_basic: don't cache xferfailsound during an attended transfer The xferfailsound was read from the channel at the beginning of the transfer, and that value is "cached" for the duration of the transfer. Therefore, changing the xferfailsound on the channel using the FEATURE() dialplan function does nothing once the transfer is under way. This makes it so the transfer code instead gets the xferfailsound configuration options from the channel when it is actually going to be used. This patch also fixes a potential memory leak of the props object as well as making sure the condition variable gets initialized before being destroyed. ASTERISK-25696 #close Change-Id: Ic726b0f54ef588bd9c9c67f4b0e4d787934f85e4	10 years ago
Richard Mudgett	9cda1de34d	taskprocessor.c: Simplify ast_taskprocessor_get() return code. Change-Id: Id5bd18ef1f60ef8be453e677e98478298358a9d1	10 years ago
Richard Mudgett	a79af2b312	astmm.c: Add more stats to CLI "memory show" commands. * Add freed regions totals to allocations and summary. * Add totals for all allocations and not just the selected allocations. Change-Id: I61d5a5112617b0733097f2545a3006a344b4032a	10 years ago
Kevin Harwell	83feb7db3b	bridge_basic: don't play an attended transfer fail sound after target hangs up If the attended transfer destination answers (picks call up or goes to voicemail) and then hangs up on the transferer then transferer hears the fail sound. This patch makes it so the fail sound is not played when the transfer destination/target hangs up after answering. ASTERISK-25697 #close Change-Id: I97f142fe4fc2805d1a24b7c16143069dc03d9ded	10 years ago
Mark Michelson	caba57631d	Merge "app: Queue hangup if channel is hung up during sub or macro execution." into 13	10 years ago
Joshua Colp	32b29d7b02	app: Queue hangup if channel is hung up during sub or macro execution. This issue was exposed when executing a connected line subroutine. When connected or redirected subroutines or macros are executed it is expected that the underlying applications and logic invoked are fast and do not consume frames. In practice this constraint is not enforced and if not adhered to will cause channels to continue when they shouldn't. This is because each caller of the connected or redirected logic does not check whether the channel has been hung up on return. As a result the the hung up channel continues. This change makes it so when the API to execute a subroutine or macro is invoked the channel is checked to determine if it has hung up. If it has then a hangup is queued again so the caller will see it and stop. ASTERISK-25690 #close Change-Id: I1f9a8ceb1487df0389f0d346ce0f6dcbcaf476ea	10 years ago
Joshua Colp	56d1162dc2	Merge topic 'update_taskprocessor_commands' into 13 * changes: Sorcery: Create human friendly serializer names. Stasis: Create human friendly taskprocessor/serializer names. taskprocessor.c: New API for human friendly taskprocessor names. taskprocessor.c: Sort CLI "core show taskprocessors" output.	10 years ago
Joshua Colp	25c0ed2f64	Merge "taskprocessor.c: Fix CLI "core show taskprocessors" output format." into 13	10 years ago
Joshua Colp	3bf8c5140d	Merge topic 'update_taskprocessor_commands' into 13 * changes: taskprocessor.c: Fix CLI "core show taskprocessors" unref. taskprocessor.c: Add CLI "core ping taskprocessor" missing unlock.	10 years ago
Joshua Colp	569595c899	Merge "ccss.c: Replace space in taskprocessor name." into 13	10 years ago
Joshua Colp	77a46ac84d	Merge "pbx: Deadlock between contexts container and context_merge locks" into 13	10 years ago
Joshua Colp	672920d0cf	Merge "manager: Cleanup manager_channelvars during shutdown." into 13	10 years ago

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5115 Commits (c86b5e369e12d20ffb41f8f5e84ba3b80beaae2b)