[OpenSIPS-Devel] [OpenSIPS/opensips] 53b0a5: b2b_logic: fix crash when sending NOTIFY for local...

[Vlad Pătrașcu]

  Branch: refs/heads/3.2
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 53b0a53ea4c55f3717b7af77b1df85f360e4b782
      https://github.com/OpenSIPS/opensips/commit/53b0a53ea4c55f3717b7af77b1df85f360e4b782
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2023-03-30 (Thu, 30 Mar 2023)

  Changed paths:
    M modules/b2b_entities/dlg.c

  Log Message:
  -----------
  b2b_logic: fix crash when sending NOTIFY for local timeout

This commit fixes a crash when using the 'n' flag of the b2b_bridge()
function, and a local timeout occurs. The crash was caused by improperly
setting the first line of the the dummy SIP message built by the b2b_entities
module.

(cherry picked from commit 312cdd4da1a1a23429b7e2a47c0889795c50c8a3)


  Commit: d47503c5248e10f90018fccf159837a2492a1419
      https://github.com/OpenSIPS/opensips/commit/d47503c5248e10f90018fccf159837a2492a1419
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2023-03-30 (Thu, 30 Mar 2023)

  Changed paths:
    M modules/b2b_logic/logic.c

  Log Message:
  -----------
  b2b_logic: fix a bridging issue when using the 'peer' identifier

Don't fail the bridging action when using the 'peer' identifier for the
b2b_bridge() function and the current entity is already deleted.

(cherry picked from commit 266e5524ad11732912d6e990d499aedf25ea1eed)


  Commit: 39724fd71b8c699f62a49931489c82109e5ef5f3
      https://github.com/OpenSIPS/opensips/commit/39724fd71b8c699f62a49931489c82109e5ef5f3
  Author: Vlad Patrascu <vladp at opensips.org>
  Date:   2023-03-30 (Thu, 30 Mar 2023)

  Changed paths:
    M modules/b2b_logic/logic.c

  Log Message:
  -----------
  b2b_logic: ignore replies to NOTIFYs sent while bridging

This will get rid of the races between the processing of the replies for the
NOTIFY and the subsequent BYE sent to the bridge initiator. The entity
might be already deleted as a result of handling the 200 OK for the BYE
before we try to do a lookup again for handling the NOTIFY reply. These
races would not produce any significant negative effects but OpenSIPS
would log unnecessary 'No b2b_key match found' errors.

(cherry picked from commit a72cfbeda919eca0020d34e33c844cc3b49a3b71)


Compare: https://github.com/OpenSIPS/opensips/compare/68836506726f...39724fd71b8c