5656 Commits (d165079cbcb51c94ce729b97f25b42cdbd7b443e)

Author	SHA1	Message	Date
Richard Mudgett	d165079cbc	rtp_engine/res_rtp_asterisk: Fix RTP struct reentrancy crashes. ... The struct ast_rtp_instance has historically been indirectly protected from reentrancy issues by the channel lock because early channel drivers held the lock for really long times. Holding the channel lock for such a long time has caused many deadlock problems in the past. Along comes chan_pjsip/res_pjsip which doesn't necessarily hold the channel lock because sometimes there may not be an associated channel created yet or the channel pointer isn't available. In the case of ASTERISK-26835 a pjsip serializer thread was processing a message's SDP body while another thread was reading a RTP packet from the socket. Both threads wound up changing the rtp->rtcp->local_addr_str string and interfering with each other. The classic reentrancy problem resulted in a crash. In the case of ASTERISK-26853 a pjsip serializer thread was processing a message's SDP body while another thread was reading a RTP packet from the socket. Both threads wound up processing ICE candidates in PJPROJECT and interfering with each other. The classic reentrancy problem resulted in a crash. * rtp_engine.c: Make the ast_rtp_instance_xxx() calls lock the RTP instance struct. * rtp_engine.c: Make ICE and DTLS wrapper functions to lock the RTP instance struct for the API call. * res_rtp_asterisk.c: Lock the RTP instance to prevent a reentrancy problem with rtp->rtcp->local_addr_str in the scheduler thread running ast_rtcp_write(). * res_rtp_asterisk.c: Avoid deadlock when local RTP bridging in bridge_p2p_rtp_write() because there are two RTP instance structs involved. * res_rtp_asterisk.c: Avoid deadlock when trying to stop scheduler callbacks. We cannot hold the instance lock when trying to stop a scheduler callback. * res_rtp_asterisk.c: Remove the lock in struct dtls_details and use the struct ast_rtp_instance ao2 object lock instead. The lock was used to synchronize two threads to prevent a race condition between starting and stopping a timeout timer. The race condition is no longer present between dtls_perform_handshake() and __rtp_recvfrom() because the instance lock prevents these functions from overlapping each other with regards to the timeout timer. * res_rtp_asterisk.c: Remove the lock in struct ast_rtp and use the struct ast_rtp_instance ao2 object lock instead. The lock was used to synchronize two threads using a condition signal to know when TURN negotiations complete. * res_rtp_asterisk.c: Avoid deadlock when trying to stop the TURN ioqueue_worker_thread(). We cannot hold the instance lock when trying to create or shut down the worker thread without a risk of deadlock. This patch exposed a race condition between a PJSIP serializer thread setting up an ICE session in ice_create() and another thread reading RTP packets. * res_rtp_asterisk.c:ice_create(): Set the new rtp->ice pointer after we have re-locked the RTP instance to prevent the other thread from trying to process ICE packets on an incomplete ICE session setup. A similar race condition is between a PJSIP serializer thread resetting up an ICE session in ice_create() and the timer_worker_thread() processing the completion of the previous ICE session. * res_rtp_asterisk.c:ast_rtp_on_ice_complete(): Protect against an uninitialized/null remote_address after calling update_address_with_ice_candidate(). * res_rtp_asterisk.c: Eliminate the chance of ice_reset_session() destroying and setting the rtp->ice pointer to NULL while other threads are using it by adding an ao2 wrapper around the PJPROJECT ice pointer. Now when we have to unlock the RTP instance object to call a PJPROJECT ICE function we will hold a ref to the wrapper. Also added some rtp->ice NULL checks after we relock the RTP instance and have to do something with the ICE structure. ASTERISK-26835 #close ASTERISK-26853 #close Change-Id: I780b39ec935dcefcce880d50c1a7261744f1d1b4	8 years ago
George Joseph	747beb1ed1	modules: change module LOAD_FAILUREs to LOAD_DECLINES ... In all non-pbx modules, AST_MODULE_LOAD_FAILURE has been changed to AST_MODULE_LOAD_DECLINE. This prevents asterisk from exiting if a module can't be loaded. If the user wishes to retain the FAILURE behavior for a specific module, they can use the "require" or "preload-require" keyword in modules.conf. A new API was added to logger: ast_is_logger_initialized(). This allows asterisk.c/check_init() to print to the error log once the logger subsystem is ready instead of just to stdout. If something does fail before the logger is initialized, we now print to stderr instead of stdout. Change-Id: I5f4b50623d9b5a6cb7c5624a8c5c1274c13b2b25	8 years ago
Joshua Colp	c5536eaee9	Merge "stun.c: Fix ast_stun_request() erratic timeout."	8 years ago
zuul	3c32680a8a	Merge "sorcery.c: Speed up ast_sorcery_retrieve_by_id()"	8 years ago
Richard Mudgett	7c37365f03	stun.c: Fix ast_stun_request() erratic timeout. ... If ast_stun_request() receives packets other than a STUN response then we could conceivably never exit if we continue to receive packets with less than three seconds between them. * Fix poll timeout to keep track of the time when we sent the STUN request. We will now send a STUN request every three seconds regardless of how many other packets we receive while waiting for a response until we have completed three STUN request transmission cycles. Change-Id: Ib606cb08585e06eb50877f67b8d3bd385a85c266	8 years ago
Richard Mudgett	8d323c74fa	sorcery.c: Speed up ast_sorcery_retrieve_by_id() ... Return early if ast_sorcery_retrieve_by_id() is not passed an id to find. Also eliminated the RAII_VAR() usage in the function. Change-Id: I871dbe162a301b5ced8b4393cec27180c7c6b218	8 years ago
Richard Mudgett	d76bc0565c	tcptls.c: Cleanup TCP/TLS listener thread on abnormal exit. ... Temporarily running out of file descriptors should not terminate the listener thread. Otherwise, when there becomes more file descriptors available, nothing is listening. * Added EMFILE exception to abnormal thread exit. * Added an abnormal TCP/TLS listener exit error message. * Closed the TCP/TLS listener socket on abnormal exit so Asterisk does not appear dead if something tries to connect to the socket. ASTERISK-26903 #close Change-Id: I10f2f784065136277f271159f0925927194581b5	8 years ago
Corey Farrell	380973cc47	CDR: Protect from data overflow in ast_cdr_setuserfield. ... ast_cdr_setuserfield wrote to a fixed length field using strcpy. This could result in a buffer overrun when called from chan_sip or func_cdr. This patch adds a maximum bytes written to the field by using ast_copy_string instead. ASTERISK-26897 #close patches: 0001-CDR-Protect-from-data-overflow-in-ast_cdr_setuserfie.patch submitted by Corey Farrell (license #5909) Change-Id: Ib23ca77e9b9e2803a450e1206af45df2d2fdf65c	8 years ago
Mark Michelson	cf4dd32bef	Merge "sdp: Add support for setting connection address and clean up state."	8 years ago
Walter Doekes	a7d94f504f	build: Fix deb build issues with fakeroot ... If DESTDIR is set, don't call ldconfig. Assume that DESTDIR is used to create a binary archive. The ldconfig call should be delegated to the archive postinst script. This fixes the case where fakeroot wraps 'make install' causing $EUID to be 0 even though it doesn't have permission to call ldconfig. The previous logic in configure.ac to detect and correct libdir has been removed as it was not completely accurate. CentOS 64-bit users should again specifiy --libdir=/usr/lib64 when configuring to prevent install to /usr/lib. Updated Makefile:check-old-libdir to check for orphans in lib64 when installing to lib as well as orphans in lib when installing to lib64. Updated Makefile and main/Makefile uninstall targets to remove the orphans using the new logic. ASTERISK-26705 Change-Id: I51739d4a03e60bff38be719b8d2ead0007afdd51	8 years ago
Joshua Colp	f3290d6b66	sdp: Add support for setting connection address and clean up state. ... This change cleans up state management for media streams by moving RTP instances into their own session structure and adding additional details that are not relevant to the core (such as connection address). These can live either in the local capabilities or joint capabilities. The ability to set explicit connection address information for the purposes of direct media and NAT has also been added at the global and stream specific level. ASTERISK-26900 Change-Id: If7e5307239a9534420732de11c451a2705b6b681	8 years ago
Sean Bright	5c1ea3ebbd	astobj2: Prevent potential deadlocks with ao2_global_obj_release ... The ao2_global_obj_release() function holds an exclusive lock on the global object while it is being dereferenced. Any destructors that run during this time that call ao2_global_obj_ref() will deadlock because a read lock is required. Instead, we make the global object inaccessible inside of the write lock and only dereference it once we have released the lock. This allows the affected destructors to fail gracefully. While this doesn't completely solve the referenced issue (the error message about not being able to create an IQ continues to be shown) it does solve the backtrace spew that accompanied it. ASTERISK-21009 #close Reported by: Marcello Ceschia Change-Id: Idf40ae136b5070dba22cb576ea8414fbc9939385	8 years ago
George Joseph	88a4c93e4c	Merge "core: Remove embedded module support"	8 years ago
zuul	7c2f4601f2	Merge "channel: Remove old epoll support and fixed max number of file descriptors."	8 years ago
Joshua Colp	5d938045d4	channel: Remove old epoll support and fixed max number of file descriptors. ... This change removes the old epoll support which has not been used or maintained in quite some time. The fixed number of file descriptors on a channel has also been removed. File descriptors are now contained in a growable vector. This can be used like before by specifying a specific position to store a file descriptor at or using a new API call, ast_channel_fd_add, which adds a file descriptor to the channel and returns its position. Tests have been added which cover the growing behavior of the vector and the new API call. ASTERISK-26885 Change-Id: I1a754b506c009b83dfdeeb08c2d2815db30ef928	8 years ago
Sean Bright	cf6a6226ab	core: Remove embedded module support ... This has not worked for some time and is no longer actively maintained. Change-Id: I5110b0db69c152761b58fa025cb0a53b0e544d99	8 years ago
Joshua Colp	772afa59dc	Merge "cdr: Allow setting of user field from 'h' extension"	8 years ago
zuul	90634cc184	Merge "rtp_engine: allocate RTP dynamic payloads per session"	8 years ago
Joshua Colp	59df60efb9	Merge "audiohook.c: Lost RTP packets lead to out-of-sync MixMonitor."	8 years ago
Kevin Harwell	9b103e7bea	rtp_engine: allocate RTP dynamic payloads per session ... Dynamic payload types were statically defined in Asterisk. This unfortunately limited the number of dynamic payloads that could be registered. With this patch dynamic payload type numbers are now assigned dynamically and per RTP instance. However, in order to limit any issues where some clients expect the old statically defined value this patch makes it so the value Asterisk used to pre- designate is used for the dynamic assignment if available. An option, "rtp_use_dynamic", has also been added (can be set in asterisk.conf) that turns the new dynamic behavior on or off. When off it reverts back to using statically defined payload values. This option defaults to "yes" in Asterisk 15. ASTERISK-26515 #close patches: ASTERISK-26515.diff submitted by jcolp (license 5000 Change-Id: I7653465c5ebeaf968f1a1cc8f3f4f5c4321da7fc	8 years ago
zuul	06c9966608	Merge "res_pjsip_messaging: Check URI type before dereferencing"	8 years ago
Sebastian Gutierrez	bb2936f3e4	cdr: Allow setting of user field from 'h' extension ... The CDR code previously did not allow the user field to be set from the 'h' extension in the dialplan. This change removes that limitation and allows it to be set. ASTERISK-26818 Change-Id: I0fed8a79b5e408bac4e30542b8f33a61c5ed9aa6	8 years ago
zuul	9f64980e60	Merge "autochan/mixmonitor/chanspy: Fix unsafe channel locking and references."	8 years ago
Sean Bright	6b4b87787c	res_pjsip_messaging: Check URI type before dereferencing ... We aren't validating that the URI we just parsed is a SIP/SIPS one before trying to access the user, host, and port members of a possibly uninitialized structure. Also update the MessageSend documentation to indicate what 'from' formats are accepted. ASTERISK-26484 #close Reported by: Vinod Dharashive Change-Id: I476b5cc5f18a7713d0ee945374f2a1c164857d30	8 years ago
Aaron An	25016a74f8	audiohook.c: Lost RTP packets lead to out-of-sync MixMonitor. ... Fixed a bug in function "ast_audiohook_write_frame" that checked the variable other_factory_samples and only flushed the factories, so they would be in sync, when other_factory_samples > 0. When there is not any rtp incoming the variable other_factory_samples will be 0, and although the result of "our_factory_ms - other_factory_ms" may be very large, this led to the record file not syncing. ASTERISK-26875 #close Reported-by: Aaron An Tested-by: Aaron An Change-Id: Ia4d890fb8fc1636a7188502bab35f555685aea22	8 years ago
Sean Bright	fc71c18a9b	thread safety: Don't use getprotobyname() ... POSIX does not require getprotobyname() to be thread safe and some implementations use static memory which causes issues when multiple threads are used. Further, our usage of it today is just to ultimately get IPPROTO_TCP for calls to setsockopt(). So instead we just use IPPROTO_TCP directly. Change-Id: I2e14e58674808f7ce99b2f5e900d0f90d0d8da48	8 years ago
Joshua Colp	76e64f5589	Merge "RFC sdp: Initial SDP creation"	8 years ago
zuul	3f30ce1272	Merge "pbx.c: Fix crash from malformed exten pattern."	8 years ago
Richard Mudgett	c87e7dd9ec	autochan/mixmonitor/chanspy: Fix unsafe channel locking and references. ... Dereferencing struct ast_autochan.chan without first calling ast_autochan_channel_lock() is unsafe because the pointer could change at any time due to a masquerade. Unfortunately, ast_autochan_channel_lock() itself uses struct ast_autochan.chan unsafely and can result in a deadlock if the original channel happens to get destroyed after a masquerade in addition to the pointer getting changed. The problem is more likely to happen with v11 and earlier because masquerades are used to optimize out local channels on those versions. However, it could still happen on newer versions if the channel is executing a dialplan application when the channel is transferred or redirected. In this situation a masquerade still must be used. * Added a lock to struct ast_autochan to safely be able to use ast_autochan.chan while trying to get the channel lock in ast_autochan_channel_lock(). The locking order is the channel lock then the autochan lock. Locking in the other direction requires deadlock avoidance. * Fix unsafe ast_autochan.chan usages in app_mixmonitor.c. * Fix unsafe ast_autochan.chan usages in app_chanspy.c. * app_chanspy.c: Removed unused autochan parameter from next_channel(). ASTERISK-26867 Change-Id: Id29dd22bc0f369b44e23ca423d2f3657187cc592	8 years ago
zuul	3fe1d8afba	Merge "core: Add stream topology changing primitives with tests."	8 years ago
Richard Mudgett	f997090877	pbx.c: Fix crash from malformed exten pattern. ... Forgetting to indicate an exten is a pattern can cause a crash if the "pattern" has a character set range. e.g., "9999[3-5]" The crash is due to a buffer overwrite because the '-' exten eye-candy wasn't removed as expected and overran the allocated space. The buffer overwrite is fixed two ways in this patch. 1) Fix ext_strncpy() to distinguish between pattern and non-pattern extens. Now '-' characters are removed when they are eye-candy and not when they are part of a pattern character set. Since the function is private to pbx.c, the return value now returns the number of bytes written to the destination buffer instead of the strlen() of the final buffer so the callers that care don't need to add one. 2) Fix callers to ext_strncpy() to supply the correct available buffer size of the destination buffer. ASTERISK-26668 Change-Id: I555d97411140e47e0522684062d174fbe32aa84a	8 years ago
George Joseph	8470c2bdea	RFC sdp: Initial SDP creation ... * Added additional fields to ast_sdp_options. * Re-organized ast_sdp. * Updated field names to correspond to RFC4566 terminology. * Created allocs/frees for SDP children. * Created getters/setters for SDP children where appropriate. * Added ast_sdp_create_from_state. * Refactored res_sdp_translator_pjmedia for changes. Change-Id: Iefbd877af7f5a4d3c74deead1bff8802661b0d48	8 years ago
Matt Jordan	b03b72717f	main/stasis_cache: Demote the ERROR message when removing a nonexistent item ... This patch demotes the ERROR message that is displayed when a nonexistent item is removed from the Stasis cache. The genesis of this demotion is due to chan_sip's realtime peers and their interaction with Asterisk's core ast_endpoint code, but ostensibly it could happen from other channel drivers as well. Since Mark Michelson already did an excellent job of explaining on this issue, it is quoted here for posterity: "Internally, when a realtime peer is retrieved, Asterisk creates an ast_endpoint structure. When that peer is destroyed, the ast_endpoint is destroyed as well. Part of the destruction of the ast_endpoint involves clearing the Stasis cache of all information about that endpoint. The problem here is that the act of creating the ast_endpoint is not enough to actually put any information in the Stasis cache. Instead, something has to happen, such as a state change, in order for the Stasis cache to have any information about that endpoint. When a device registers, chan_sip creates an ast_endpoint structure, processes the REGISTER, and then destroys the ast_endpoint. When the ast_endpoint is destroyed, there is nothing to destroy in the Stasis cache, so an error message is emitted. When you use rtcachefriends, ast_endpoint structures persist for the lifetime of the module and so you do not see this error message." ASTERISK-25237 #close Change-Id: I53cebc6b4a897a1ab9564182b75c177780feff70	8 years ago
Sean Bright	35cfd2c0cc	media_cache: Prefer ast_file_is_readable() over access() ... Change-Id: Icc0dc6e61b2e68d5cdcb74b016b2726a388c7def	8 years ago
Joshua Colp	3ed05badb9	core: Add stream topology changing primitives with tests. ... This change adds a few things to facilitate stream topology changing: 1. Control frame types have been added for use by the channel driver to notify the application that the channel wants to change the stream topology or that a stream topology change has been accepted. They are also used by the indicate interface to the channel that the application uses to indicate it wants to do the same. 2. Legacy behavior has been adopted in ast_read() such that if a channel requests a stream topology change it is denied automatically and the current stream topology is preserved if the application is not capable of handling streams. Tests have also been written which confirm the multistream and non-multistream behavior. ASTERISK-26839 Change-Id: Ia68ef22bca8e8457265ca4f0f9de600cbcc10bc9	8 years ago
Daniel Journo	272259a2c6	Saynumber is trying to get "and" from "digits/" subfolder ... * say.c Changed 'digits/and' to 'vm-and' for en_GB ASTERISK-26598 #close Change-Id: If1b713e5daea6f952b339f139178d292a6c4fcfe	8 years ago
Richard Mudgett	c9296b23d1	core: Cleanup ast_get_hint() usage. ... * manager.c:manager_state_cb() Fix potential use of uninitialized hint[] if a hint does not exist for the requested extension. Ran into this when developing a testsuite test. The AMI event ExtensionStatus came out with the hint header value containing garbage. The AMI event PresenceStatus also had the same issue. * manager.c:action_extensionstate() no need to completely initialize the hint[]. Only initialize the first element. * pbx.c:ast_add_hint() Remove unnecessary assignment. * chan_sip.c: Eliminate an unneeded hint[] local variable. We only care about the return value of ast_get_hint() there. Change-Id: Ia9a8786f01f93f1f917200f0a50bead0319af97b	8 years ago
Joshua Colp	fb11f038a3	Merge "stream: Unit tests for stream read and tweaks framework"	8 years ago
George Joseph	0560c32375	stream: Unit tests for stream read and tweaks framework ... * Removed the AST_CHAN_TP_MULTISTREAM tech property. We now rely on read_stream being set to indicate a multi stream channel. * Added ast_channel_is_multistream convenience function. * Fixed issue where stream and default_stream weren't being set on a frame retrieved from the queue. * Now testing for NULL being returned from the driver's read or read_stream callback. * Fixed issue where the dropnondefault code was crashing on a NULL f. * Now enforcing that if either read_stream or write_stream are set when ast_channel_tech_set is called that BOTH are set. * Added the unit tests. ASTERISK-26816 Change-Id: If7792b20d782e71e823dabd3124572cf0a4caab2	8 years ago
Mark Michelson	9c55a71798	SDP: Add initial SDP state machine. ... This introduces and documents the various states in the state machine. This also introduces API functions that induce state changes, and places TODO comments telling what needs to be done in addition to what is already there. Those TODOs will be replaced with real code in upcoming changes. Change-Id: I871c0eb480b4c84d83e91ac5628e7a673e8b89ed	8 years ago
Joshua Colp	26bf1846e2	Merge "media_cache: Mark cache entry stale if cache file is removed"	8 years ago
Sean Bright	60e9e4fcc0	media_cache: Mark cache entry stale if cache file is removed ... In the event that a cache file is removed out from under us, we should treat the cache entry as stale and force a refresh. ASTERISK-26774 #close Reported by: Igor Gamayunov Change-Id: I3b1bd0c999d59d18664ef73a29823bc5b431dc52	8 years ago
George Joseph	4692a32ed7	build: Warn if asterisk is installed in both 32 and 64 bit sys dirs ... ... and clean them both up on uninstall. We've fixed the issue where 'make install' was installing to /usr/lib on 64-bit systems that use /usr/lib64. Now we need to clean up the remnants in /usr/lib. * 'make install' now prints a warning if DESTDIR/ASTLIBDIR contains 'lib64' and libasterisk* shared libraries or modules are also found in DESTDIR/ASTLIBDIR with 'lib64' transformed to 'lib'. * 'make uninstall' ALWAYS cleans up both DESTDIR/ASTLIBDIR and DESTDIR/ASTLIBDIR with 'lib64' transformed to 'lib'. ASTERISK-26705 Change-Id: I6edddeb3c07a51e7c7ba7cac3c05e4bf3ec3f01f	8 years ago
George Joseph	df22d297a6	Merge "channel: Add ast_read_stream function for reading frames from all streams."	8 years ago
Joshua Colp	6ac33bfe3e	Merge "Binaural synthesis (confbridge): Adds binaural synthesis to bridge_softmix."	8 years ago
zuul	f943ead12e	Merge "build: Execute ldconfig to build cache. (take two)"	8 years ago
zuul	461577b23b	Merge "channel: Add support for writing to a specific stream."	8 years ago
Joshua Colp	c07c6714f2	channel: Add ast_read_stream function for reading frames from all streams. ... This change introduces an ast_read_stream function and callback in the channel technology which allows reading frames from all streams and not just the default streams. The stream number has also been added to frames. This is to allow the case where frames are queued onto the channel instead of being read directly from the driver. This change does impose a restriction on reading though: a chain of frames can only contain frames from the same stream. ASTERISK-26816 Change-Id: I5d7dc35e86694df91fd025126f6cfe0453aa38ce	8 years ago
George Joseph	b0067bcf2c	build: Execute ldconfig to build cache. (take two) ... On some platforms a multiarch approach is used for libraries. The build system does not take this into account and still places libraries into the lib directory if no --libdir is specified to configure. On initial startup this results in libasteriskssl.so not being found, as it is not in the multiarch lib directory. To make matters worse, options were being passed to ldconfig on both Linux and FreeBSD that actually prevented the rebuild of the cache. * Fedora has a /usr/share/config.site that automatically tells autoconf to use /usr/lib64 but CentOS does not. This logic was copied to configure.ac and modified so systems like Ubuntu, which still use /usr/lib for 64-bit systems, aren't affected. Now that we have them in the correct directory... In order for the system loader to find libasteriskssl and libasteriskpj, one of 3 things has to happen... - The linker cache must be rebuilt including the directory where the libasterisk* libraries were installed. Only root can rebuild the cache. This was busted. - We have to link the asterisk binary with an rpath pointing to the directrory where the libasterisk* libraries were installed. This makes things very complicated and will happen over the collective dead bodies of everyone who's had to package a distribution with an rpath. - Finally, you can start asterisk with LD_LIBRARY_PATH set to the directrory where the libasterisk* libraries were installed. There are no other options. So... * The invokation of ldconfig has been moved from main/Makefile to ASTTOPDIR/Makefile, the options have been removed, and DESTDIR/ASTLIBDIR appended. If you aren't root, you will be warned after the "Asterisk Installation Compete" banner that you must re-run 'make install' as root, manually run 'ldconfig DESTDIR/ASTLIBDIR' as root, or run asterisk with LD_LIBRARY_PATH. ASTERISK-26705 Change-Id: I2a64b7c33a7d3e9bde20f47e3d3ab771977af982	8 years ago
Joshua Colp	6cc890b880	channel: Add support for writing to a specific stream. ... This change adds an ast_write_stream function which allows writing a frame to a specific media stream. It also moves ast_write() to using this underneath by writing media frames provided to it to the default streams of the channel. Existing functionality (such as audiohooks, framehooks, etc) are limited to being applied to the default stream only. Unit tests have also been added which test the behavior of both non-multistream and multistream channels to confirm that the write() and write_stream() callbacks are invoked appropriately. ASTERISK-26793 Change-Id: I4df20d1b65bd4d787fce0b4b478e19d2dfea245c	8 years ago