initial blind crack at passing reinvites across no-media bridges

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5718 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_types.h

@@ -387,6 +387,7 @@ typedef enum {
 	SWITCH_MESSAGE_INDICATE_REDIRECT  - indicate redirect
 	SWITCH_MESSAGE_INDICATE_REJECT    - indicate reject
 	SWITCH_MESSAGE_INDICATE_BROADCAST - indicate media broadcast
+	SWITCH_MESSAGE_INDICATE_MEDIA_REDIRECT - indicate media broadcast
 </pre>
  */
 typedef enum {
@@ -404,7 +405,8 @@ typedef enum {
 	SWITCH_MESSAGE_INDICATE_UNHOLD,
 	SWITCH_MESSAGE_INDICATE_REDIRECT,
 	SWITCH_MESSAGE_INDICATE_REJECT,
-	SWITCH_MESSAGE_INDICATE_BROADCAST
+	SWITCH_MESSAGE_INDICATE_BROADCAST,
+	SWITCH_MESSAGE_INDICATE_MEDIA_REDIRECT
 } switch_core_session_message_types_t;
 
 

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -689,7 +689,8 @@ static switch_status_t sofia_receive_message(switch_core_session_t *session, swi
 		switch_channel_mark_answered(channel);
 	}
 		break;
-	case SWITCH_MESSAGE_INDICATE_NOMEDIA: {
+	case SWITCH_MESSAGE_INDICATE_NOMEDIA: 
+		{
 			char *uuid;
 			switch_core_session_t *other_session;
 			switch_channel_t *other_channel;
@@ -715,16 +716,26 @@ static switch_status_t sofia_receive_message(switch_core_session_t *session, swi
 				sofia_glue_tech_absorb_sdp(tech_pvt);
 			}
 			sofia_glue_do_invite(session);
-	}
+		}
 		break;
-	case SWITCH_MESSAGE_INDICATE_MEDIA:{
-		uint32_t count = 0;
 
-		if (switch_channel_get_state(channel) >= CS_HANGUP) {
-			return SWITCH_STATUS_FALSE;
+	case SWITCH_MESSAGE_INDICATE_MEDIA_REDIRECT:
+		{
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Sending media re-direct:\n%s\n", msg->string_arg);
+			tech_pvt->local_sdp_str = switch_core_session_strdup(session, msg->string_arg);
+			sofia_glue_do_invite(session);
 		}
+		break;
+
+	case SWITCH_MESSAGE_INDICATE_MEDIA:
+		{
+			uint32_t count = 0;
 
-		switch_channel_clear_flag(channel, CF_BYPASS_MEDIA);
+			if (switch_channel_get_state(channel) >= CS_HANGUP) {
+				return SWITCH_STATUS_FALSE;
+			}
+
+			switch_channel_clear_flag(channel, CF_BYPASS_MEDIA);
 			tech_pvt->local_sdp_str = NULL;
 			if (!switch_rtp_ready(tech_pvt->rtp_session)) {
 				sofia_glue_tech_prepare_codecs(tech_pvt);
@@ -751,13 +762,15 @@ static switch_status_t sofia_receive_message(switch_core_session_t *session, swi
 		}
 		break;
 
-	case SWITCH_MESSAGE_INDICATE_HOLD:{
+	case SWITCH_MESSAGE_INDICATE_HOLD:
+		{
 			switch_set_flag_locked(tech_pvt, TFLAG_SIP_HOLD);
 			sofia_glue_do_invite(session);
 		}
 		break;
-
-	case SWITCH_MESSAGE_INDICATE_UNHOLD:{
+		
+	case SWITCH_MESSAGE_INDICATE_UNHOLD:
+		{
 			switch_clear_flag_locked(tech_pvt, TFLAG_SIP_HOLD);
 			sofia_glue_do_invite(session);
 		}

src/mod/endpoints/mod_sofia/sofia.c

@@ -1210,6 +1210,19 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 
 			if (r_sdp) { 
 				if (switch_channel_test_flag(channel, CF_BYPASS_MEDIA)) {
+					if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
+						&& (other_session = switch_core_session_locate(uuid))) {
+						switch_core_session_message_t msg = { 0 };
+
+						msg.message_id = SWITCH_MESSAGE_INDICATE_MEDIA_REDIRECT;
+						msg.from = __FILE__;
+						msg.string_arg = (char *) r_sdp;
+						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Passing SDP to other leg.\n%s\n", r_sdp);
+						switch_core_session_receive_message(other_session, &msg);
+						switch_core_session_rwunlock(other_session);
+					} else {
+						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Re-INVITE to a no-media channel that is not in a bridge.\n");
+					}
 					goto done;
 				} else {
 					if (tech_pvt->num_codecs) {