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George Joseph dd76b53ca6 pjsip_transport_events: Fix possible use after free on transport ... It was possible for a module that registered for transport monitor events to pass in a pjsip_transport that had already been freed. This caused pjsip_transport_events to crash when looking up the monitor for the transport. The fix is a two pronged approach. 1. We now increment the reference count on pjsip_transports when we create monitors for them, then decrement the count when the transport is going to be destroyed. 2. There are now APIs to register and unregister monitor callbacks by "transport key" which is a string concatenation of the remote ip address and port. This way the module needing to monitor the transport doesn't have to hold on to the transport object itself to unregister. It just has to save the transport_key. * Added the pjsip_transport reference increment and decrement. * Changed the internal transport monitor container key from the transport->obj_name (which may not be unique anyway) to the transport_key. * Added a helper macro AST_SIP_MAKE_REMOTE_IPADDR_PORT_STR() that fills a buffer with the transport_key using a passed-in pjsip_transport. * Added the following functions: ast_sip_transport_monitor_register_key ast_sip_transport_monitor_register_replace_key ast_sip_transport_monitor_unregister_key and marked their non-key counterparts as deprecated. * Updated res_pjsip_pubsub and res_pjsip_outbound_register to use the new "key" monitor functions. NOTE: res_pjsip_registrar also uses the transport monitor functionality but doesn't have a persistent object other than contact to store a transport key. At this time, it continues to use the non-key monitor functions. ASTERISK-30244 Change-Id: I1a20baf2a8643c272dcf819871d6c395f148f00b		3 years ago
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include	res_pjsip: Fix for Doxygen.	4 years ago
config_auth.c	res_pjsip: Implement additional SIP RFCs for Google Voice trunk compatability	7 years ago
config_domain_aliases.c	res_pjsip: Make pjlib.h consistently included.	7 years ago
config_global.c	res_pjsip: Fix for Doxygen.	4 years ago
config_system.c	res_pjsip.c: Added disable_rport option for pjsip.conf	5 years ago
config_transport.c	res_pjsip: allow TLS verification of wildcard cert-bearing servers	3 years ago
location.c	res_pjsip_registrar: Remove unavailable contacts if exceeds max_contacts	4 years ago
pjsip_cli.c	pjsip: Improve CLI completion performance	8 years ago
pjsip_config.xml	pjsip_config.xml: Fix omissions caused by wrong cherry-pick order	3 years ago
pjsip_configuration.c	Geolocation: chan_pjsip Capability Preview	3 years ago
pjsip_distributor.c	res_pjsip: Fix for Doxygen.	4 years ago
pjsip_global_headers.c	Remove redundant module checks and references.	7 years ago
pjsip_manager.xml	pjsip_config.xml: Fix omissions caused by wrong cherry-pick order	3 years ago
pjsip_message_filter.c	res_pjsip/pjsip_message_filter: set preferred transport in pjsip_message_filter	4 years ago
pjsip_options.c	res_pjsip: set Accept-Encoding to identity in OPTIONS response	5 years ago
pjsip_resolver.c	pjsip_resolver.c: Ensure AAAA dns requests are made.	5 years ago
pjsip_scheduler.c	res: Spelling fixes	4 years ago
pjsip_session.c	res: Spelling fixes	4 years ago
pjsip_transport_events.c	pjsip_transport_events: Fix possible use after free on transport	3 years ago
pjsip_transport_management.c	res_pjsip, res_pjsip_session: initialize local variables	5 years ago
presence_xml.c	res_pjsip_pidf_eyebeam_body_supplement: Correct status presentation	8 years ago
security_events.c	security-events: Fix SuccessfulAuth using_password declaration.	8 years ago