[libpri-commits] rmudgett: tag 1.4.11.5 r2132 - /tags/1.4.11.5/q931.c

[SVN commits to the libpri project]

Author: rmudgett
Date: Wed Nov 17 15:19:19 2010
New Revision: 2132

URL: http://svnview.digium.com/svn/libpri?view=rev&rev=2132
Log:
Merged revision 1961 from
https://origsvn.digium.com/svn/libpri/branches/1.4

..........
  r1961 | rmudgett | 2010-09-07 19:10:05 -0500 (Tue, 07 Sep 2010) | 12 lines

  Prevent a CONNECT message from sending a CONNECT ACKNOWLEDGE in the wrong state.

  Filter the processing of the CONNECT message to prevent libpri from
  sending a CONNECT ACKNOWLEDGE when the call is in an inappropriate state.
  This can happen when we hang up an outgoing call after the other end has
  sent a CONNECT but before we have processed the CONNECT.

  (issue #17360)
  Reported by: shawkris
  Patches:
        issue17360_con_ack_v1.4.patch uploaded by rmudgett (license 664)
..........

Modified:
    tags/1.4.11.5/q931.c

Modified: tags/1.4.11.5/q931.c
URL: http://svnview.digium.com/svn/libpri/tags/1.4.11.5/q931.c?view=diff&rev=2132&r1=2131&r2=2132
==============================================================================
--- tags/1.4.11.5/q931.c (original)
+++ tags/1.4.11.5/q931.c Wed Nov 17 15:19:19 2010
@@ -6912,9 +6912,20 @@
 			q931_release_complete(ctrl,c,PRI_CAUSE_INVALID_CALL_REFERENCE);
 			break;
 		}
-		if (c->ourcallstate == Q931_CALL_STATE_ACTIVE) {
-			q931_status(ctrl, c, PRI_CAUSE_WRONG_MESSAGE);
-			break;
+		switch (c->ourcallstate) {
+		case Q931_CALL_STATE_CALL_INITIATED:
+		case Q931_CALL_STATE_OVERLAP_SENDING:
+		case Q931_CALL_STATE_OUTGOING_CALL_PROCEEDING:
+		case Q931_CALL_STATE_CALL_DELIVERED:
+		case Q931_CALL_STATE_CALL_PRESENT:
+		case Q931_CALL_STATE_CALL_RECEIVED:
+		case Q931_CALL_STATE_INCOMING_CALL_PROCEEDING:
+		case Q931_CALL_STATE_OVERLAP_RECEIVING:
+			/* Accept CONNECT in these states. */
+			break;
+		default:
+			q931_status(ctrl, c, PRI_CAUSE_WRONG_CALL_STATE);
+			return 0;
 		}
 		UPDATE_OURCALLSTATE(ctrl, c, Q931_CALL_STATE_ACTIVE);
 		c->peercallstate = Q931_CALL_STATE_CONNECT_REQUEST;
@@ -6934,7 +6945,6 @@
 		if (c->cis_auto_disconnect && c->cis_call) {
 			/* Make sure WE release when we initiate a signalling only connection */
 			q931_hangup(ctrl, c, PRI_CAUSE_NORMAL_CLEARING);
-			break;
 		} else {
 			c->incoming_ct_state = INCOMING_CT_STATE_IDLE;
 
@@ -6947,6 +6957,7 @@
 
 			return Q931_RES_HAVEEVENT;
 		}
+		break;
 	case Q931_FACILITY:
 		if (c->newcall) {
 			q931_release_complete(ctrl,c,PRI_CAUSE_INVALID_CALL_REFERENCE);