## Change Log for Release asterisk-certified-22.8-cert4 ### Links: - [Full ChangeLog](https://downloads.asterisk.org/pub/telephony/certified-asterisk/releases/ChangeLog-certified-22.8-cert4.html) - [GitHub Diff](https://github.com/asterisk/asterisk/compare/certified-22.8-cert3...certified-22.8-cert4) - [Tarball](https://downloads.asterisk.org/pub/telephony/certified-asterisk/asterisk-certified-22.8-cert4.tar.gz) - [Downloads](https://downloads.asterisk.org/pub/telephony/certified-asterisk) ### Summary: - Commits: 13 - Commit Authors: 6 - Issues Resolved: 8 - Security Advisories Resolved: 0 ### User Notes: - #### res_pjsip_maintenance: Add PJSIP endpoint maintenance mode New module res_pjsip_maintenance adds runtime maintenance mode for PJSIP endpoints. Use "pjsip set maintenance " to enable or disable, and "pjsip show maintenance" to list affected endpoints. AMI actions PJSIPSetMaintenance and PJSIPShowMaintenance provide programmatic access. No configuration file changes required. ### Upgrade Notes: ### Developer Notes: - #### res_pjsip_maintenance: Add PJSIP endpoint maintenance mode ast_sip_session_supplement gains a new optional callback - int (*session_create)(struct ast_sip_endpoint *endpoint, const char *destination). It is called from the global supplement list (not per-session) at the start of ast_sip_session_create_outgoing() via ast_sip_session_check_supplement_create(). Returning non-zero blocks the outgoing session. Modules that need to gate outbound SIP session creation should register a supplement with this callback set rather than hooking into chan_pjsip directly. ### Commit Authors: - Daniel Donoghue: (1) - George Joseph: (4) - Joshua C. Colp: (1) - Mike Bradeen: (1) - Naveen Albert: (5) - Sean Bright: (1) ## Issue and Commit Detail: ### Closed Issues: - 1781: [bug]: More discarded-qualifiers errors with gcc 15.2.1 - 1783: [bug]: Several unused-but-set-variable warnings with gcc 16 - 1786: [bug]: chan_dahdi: A few more discarded-qualifiers errors not caught previously - 1903: [bug]: g++ 16 no longer defines __STDC_VERSION__ causing channelstorage_cpp_map_name_id.cc to fail - 1947: [bug]: chan_dahdi fails to build with gcc-16 when openr2 is installed - 2054: [bug]: backtrace.c: Compilation failure due to use of removed type - 2059: [bug]: Occasional call drops during re-INVITE when codec changes - 2061: [bug]: backtrace.c: stdbool.h needed for portability ### Commits By Author: - #### Daniel Donoghue (1): - res_pjsip_maintenance: Add PJSIP endpoint maintenance mode - #### George Joseph (4): - SECURITY.md: Add warning about reporting multiple issues in one advisory. - chan_dahdi: Fix set but not used in mfcr2_show_links_of(). - compat.h: Ensure check for `__STDC_VERSION__` is not attempted for c++. - SECURITY.md: Update with additional instructions. - #### Joshua C. Colp (1): - pjsip: Eliminate some unique taskprocessors. - #### Mike Bradeen (1): - res_pjsip_sdp_rtp: Fix intermittent call drop on reINVITE sdp change - #### Naveen Albert (5): - backtrace.c: Include stdbool.h - backtrace.c: Avoid removed bfd_boolean type. - build: Fix another GCC discarded-qualifiers const error. - chan_dahdi: Fix discarded-qualifiers errors. - build: Fix unused-but-set-variable warnings with gcc 16. - #### Sean Bright (1): - app_voicemail.c: Fix may-be-uninitialized error ### Commit List: - res_pjsip_sdp_rtp: Fix intermittent call drop on reINVITE sdp change - pjsip: Eliminate some unique taskprocessors. - backtrace.c: Include stdbool.h - backtrace.c: Avoid removed bfd_boolean type. - app_voicemail.c: Fix may-be-uninitialized error - build: Fix another GCC discarded-qualifiers const error. - SECURITY.md: Add warning about reporting multiple issues in one advisory. - chan_dahdi: Fix discarded-qualifiers errors. - build: Fix unused-but-set-variable warnings with gcc 16. - chan_dahdi: Fix set but not used in mfcr2_show_links_of(). - compat.h: Ensure check for `__STDC_VERSION__` is not attempted for c++. - res_pjsip_maintenance: Add PJSIP endpoint maintenance mode - SECURITY.md: Update with additional instructions. ### Commit Details: #### res_pjsip_sdp_rtp: Fix intermittent call drop on reINVITE sdp change Author: Mike Bradeen Date: 2026-08-05 A reINVITE that changed the offered codec set (e.g. ulaw+alaw -> alaw only) could lead to call teardown when a bridge write still using the old format occurred during the re-negotiation. This change avoids the termination by making the following changes. First, Asterisk now holds the lock across both the tx payload update and the channel format update so they commit atomically. Second, when processing the sdp on the new incoming offer, merge the new offer with the old until the negotiation is complete. Also adds unit tests for the sdp merge Fixes: #2059 #### pjsip: Eliminate some unique taskprocessors. Author: Joshua C. Colp Date: 2026-07-15 When placing outbound calls each call would get its own taskprocessor for things related to the call. In practice this is overkill as few things actually occur. Inbound calls on the other hand already use one of the fixed number of distributor taskprocessors. This also occurred for OPTIONS requests with each AOR having its own taskprocessor. This change moves both to using a distributor taskprocessor instead. #### backtrace.c: Include stdbool.h Author: Naveen Albert Date: 2026-08-04 stdbool.h is needed now that we use the bool type directly instead of bfd_boolean. See also 1d95b744c06974f0a00c143c6e0fc979af930908. Resolves: #2061 #### backtrace.c: Avoid removed bfd_boolean type. Author: Naveen Albert Date: 2026-08-03 bfd_boolean has been deprecated for some time and has now been removed in gdb, so use bool directly instead. See: https://github.com/gnutools/binutils-gdb/commit/1d95b744c06974f0a00c143c6e0fc979af930908 Resolves: #2054 #### app_voicemail.c: Fix may-be-uninitialized error Author: Sean Bright Date: 2026-08-02 A pointer to `new` is passed to `inboxcount(...)` which increments the pointed-to value. #### build: Fix another GCC discarded-qualifiers const error. Author: Naveen Albert Date: 2026-02-18 Follow on commit to 27a39cba7e6832cb30cb64edaf879f447b669628 to fix compilation with BETTER_BACKTRACES with gcc 15.2.1. Resolves: #1781 #### SECURITY.md: Add warning about reporting multiple issues in one advisory. Author: George Joseph Date: 2026-08-04 #### chan_dahdi: Fix discarded-qualifiers errors. Author: Naveen Albert Date: 2026-02-18 Fix discarded-qualifiers errors to compile successfully with gcc 15.2.1. Associated changes have also been made to libss7; however, for compatibility we cast const char* values to char*. In the future, these casts could be removed. Resolves: #1786 #### build: Fix unused-but-set-variable warnings with gcc 16. Author: Naveen Albert Date: 2026-02-18 Fix or remove a few variables that were being set but not actually used anywhere, causing warnings with gcc 16. Resolves: #1783 #### chan_dahdi: Fix set but not used in mfcr2_show_links_of(). Author: George Joseph Date: 2026-05-21 When openr2 is installed mfcr2_show_links_of() is no longer ifdeffed out which makes gcc-16 complain with 'variable ‘x’ set but not used'. Resolves: #1947 #### compat.h: Ensure check for `__STDC_VERSION__` is not attempted for c++. Author: George Joseph Date: 2026-04-27 `__STDC_VERSION__` is specific to C but up until gcc 16, the g++ compiler also defined it. With g++ 16.0 it's no longer defined (which is the correct behavior) so compiling channelstorage_cpp_map_name_id.cc fails. The check for `__STDC_VERSION__` in compat.h is now skipped if we're compiling a C++ source file. Resolves: #1903 #### res_pjsip_maintenance: Add PJSIP endpoint maintenance mode Author: Daniel Donoghue Date: 2026-03-10 Introduces res_pjsip_maintenance, a loadable module that allows operators to place individual PJSIP endpoints into maintenance mode at runtime without unregistering or disabling them. While an endpoint is in maintenance mode: * New inbound INVITE and SUBSCRIBE dialogs are rejected with 503 Service Unavailable and a Retry-After: 300 header. * In-progress dialogs (re-INVITE, UPDATE, BYE, etc.) are unaffected and complete normally. * Outbound originations via Dial() or ARI originate are refused before any SIP session is created. State is held in-memory only and is cleared on module unload or Asterisk restart. This module was developed with AI assistance (Claude). All code has been reviewed and tested by the author, who takes full responsibility for the submission. CLI interface: pjsip set maintenance pjsip show maintenance [endpoint] AMI interface: Action: PJSIPSetMaintenance Endpoint: |all State: on|off Action: PJSIPShowMaintenance Endpoint: (optional; omit to list all) Emits PJSIPMaintenanceStatus events per result, followed by PJSIPMaintenanceStatusComplete. State changes also emit an unsolicited PJSIPMaintenanceStatus event. To support outbound blocking, a new session_create callback is added to ast_sip_session_supplement. Supplements that set this callback are invoked at the start of ast_sip_session_create_outgoing() in res_pjsip_session, before any dialog or invite session resources are allocated. res_pjsip_maintenance registers itself as a session supplement and uses this callback to gate outbound session creation on a per-endpoint basis. MODULEINFO: pjproject res_pjsip res_pjsip_session UserNote: New module res_pjsip_maintenance adds runtime maintenance mode for PJSIP endpoints. Use "pjsip set maintenance " to enable or disable, and "pjsip show maintenance" to list affected endpoints. AMI actions PJSIPSetMaintenance and PJSIPShowMaintenance provide programmatic access. No configuration file changes required. DeveloperNote: ast_sip_session_supplement gains a new optional callback - int (*session_create)(struct ast_sip_endpoint *endpoint, const char *destination). It is called from the global supplement list (not per-session) at the start of ast_sip_session_create_outgoing() via ast_sip_session_check_supplement_create(). Returning non-zero blocks the outgoing session. Modules that need to gate outbound SIP session creation should register a supplement with this callback set rather than hooking into chan_pjsip directly. #### SECURITY.md: Update with additional instructions. Author: George Joseph Date: 2026-03-19 Also added line breaks for people reading this file directly from the code base.