Merge "chan_pjsip: Fix crash on reINVITE before initial INVITE completes." into certified/13.1

channels/chan_pjsip.c

@@ -2025,7 +2025,8 @@ static int chan_pjsip_incoming_request(struct ast_sip_session *session, struct p
 		return 0;
 	}
 
-	if (session->inv_session->state >= PJSIP_INV_STATE_CONFIRMED) {
+	/* Check for a to-tag to determine if this is a reinvite */
+	if (rdata->msg_info.to->tag.slen) {
 		/* Weird case. We've received a reinvite but we don't have a channel. The most
 		 * typical case for this happening is that a blind transfer fails, and so the
 		 * transferer attempts to reinvite himself back into the call. We already got
@@ -2072,8 +2073,9 @@ static int call_pickup_incoming_request(struct ast_sip_session *session, pjsip_r
 	struct ast_features_pickup_config *pickup_cfg;
 	struct ast_channel *chan;
 
-	/* We don't care about reinvites */
-	if (session->inv_session->state >= PJSIP_INV_STATE_CONFIRMED) {
+	/* Check for a to-tag to determine if this is a reinvite */
+	if (rdata->msg_info.to->tag.slen) {
+		/* We don't care about reinvites */
 		return 0;
 	}
 
@@ -2120,8 +2122,9 @@ static int pbx_start_incoming_request(struct ast_sip_session *session, pjsip_rx_
 {
 	int res;
 
-	/* We don't care about reinvites */
-	if (session->inv_session->state >= PJSIP_INV_STATE_CONFIRMED) {
+	/* Check for a to-tag to determine if this is a reinvite */
+	if (rdata->msg_info.to->tag.slen) {
+		/* We don't care about reinvites */
 		return 0;
 	}
 

res/res_pjsip_caller_id.c

@@ -345,10 +345,11 @@ static void update_incoming_connected_line(struct ast_sip_session *session, pjsi
  */
 static int caller_id_incoming_request(struct ast_sip_session *session, pjsip_rx_data *rdata)
 {
-	if (session->inv_session->state < PJSIP_INV_STATE_CONFIRMED) {
+	if (!session->channel) {
 		/*
-		 * Initial inbound INVITE.  Set the session ID directly
-		 * because the channel has not been created yet.
+		 * Since we have no channel this must be the initial inbound
+		 * INVITE.  Set the session ID directly because the channel
+		 * has not been created yet.
 		 */
 		if (session->endpoint->id.trust_inbound
 			&& (!set_id_from_pai(rdata, &session->id)
@@ -361,9 +362,10 @@ static int caller_id_incoming_request(struct ast_sip_session *session, pjsip_rx_
 		if (!session->endpoint->id.self.number.valid) {
 			set_id_from_from(rdata, &session->id);
 		}
-	} else if (session->channel) {
-		/* Reinvite. Check for changes to the ID and queue a connected line
-		 * update if necessary
+	} else {
+		/*
+		 * ReINVITE or UPDATE.  Check for changes to the ID and queue
+		 * a connected line update if necessary.
 		 */
 		update_incoming_connected_line(session, rdata);
 	}