diff options
Diffstat (limited to 'pjsip/src/pjsip/sip_transaction.c')
| -rw-r--r-- | pjsip/src/pjsip/sip_transaction.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pjsip/src/pjsip/sip_transaction.c b/pjsip/src/pjsip/sip_transaction.c index 7008670a..e7e2347b 100644 --- a/pjsip/src/pjsip/sip_transaction.c +++ b/pjsip/src/pjsip/sip_transaction.c @@ -2840,6 +2840,15 @@ static pj_status_t tsx_on_state_completed_uas( pjsip_transaction *tsx, /* Process incoming ACK request. */ + /* Verify that this is an INVITE transaction */ + if (tsx->method.id != PJSIP_INVITE_METHOD) { + PJ_LOG(2, (tsx->obj_name, + "Received illegal ACK for %.*s transaction", + (int)tsx->method.name.slen, + tsx->method.name.ptr)); + return PJSIP_EINVALIDMETHOD; + } + /* Cease retransmission. */ if (tsx->retransmit_timer.id != 0) { pjsip_endpt_cancel_timer(tsx->endpt, &tsx->retransmit_timer); |