Locking account to specific TCP/TLS listener will cause registration loop (thanks Tony Million for the report)

[bennylp]

When PJSUA-LIB account is locked to a specific TCP or TLS listener, re-registration will occur in a loop. This happens because when specific listener is requested, TCP/TLS listener will always create a new transport for each registration request, and PJSUA-LIB will keep detecting IP address changed for the account, causing continuous reregistration.

Note:

while the issue occurs in PJSUA-LIB, the bug is in PJSIP because it keeps creating new transport.

[nanang]

In 5246:

Fix #1311: Updated pjsip_tpmgr_acquire_transport2() to look up from transport hash table (instead of always create a new one) when transport selector is set to TCP/TLS listener (thanks George Joseph for the patch).

[ming]

A further fix on this ticket can be found in r5325, which also sets the factory on transports created as a result of an accept as well (thanks to George Joseph for providing the patch for this).