adding code for reporting DTMF to MGC

src/mod/endpoints/mod_media_gateway/media_gateway.c

@@ -7,6 +7,7 @@
 */
 
 #include "mod_media_gateway.h"
+#include "media_gateway_stack.h"
 
 megaco_profile_t *megaco_profile_locate(const char *name)
 {
@@ -79,6 +80,24 @@ megaco_profile_t*  megaco_get_profile_by_suId(SuId suId)
 	return profile;
 }
 
+
+static switch_status_t mg_on_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf, switch_dtmf_direction_t direction)
+{
+	switch_channel_t *channel = switch_core_session_get_channel(session);
+	mg_termination_t *term = switch_channel_get_private(channel, "_mg_term_");
+	char digit[2] = { dtmf->digit };
+	if (!term) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot find termination structure for session [%s]\n",
+			switch_core_session_get_uuid(session));
+		return SWITCH_STATUS_SUCCESS;
+	}
+	
+	//switch_status_t  mg_send_dtmf_notify(megaco_profile_t* mg_profile, const char* term_name, char* digits, int num_of_collected_digits);
+	//mg_send_dtmf_notify(term->profile, term->name, digit, 1);
+	switch_log_printf("NOT Sending notify to MGC for dtmf: %c\n", dtmf->digit);
+	return SWITCH_STATUS_SUCCESS;
+}
+
 /*
  * Creates a freeswitch channel for the specified termination. 
  * The channel will be parked until future actions are taken 
@@ -136,6 +155,7 @@ switch_status_t megaco_activate_termination(mg_termination_t *term)
     }
     
     if (zstr(term->uuid)) {    
+	switch_channel_t *channel;
         if (switch_ivr_originate(NULL, &session, &cause, dialstring, 0, NULL, NULL, NULL, NULL, var_event, 0, NULL) != SWITCH_STATUS_SUCCESS) {
             switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to instanciate termination [%s]: %s\n", term->name, switch_channel_cause2str(cause));   
             status = SWITCH_STATUS_FALSE;
@@ -144,6 +164,9 @@ switch_status_t megaco_activate_termination(mg_termination_t *term)
         
         term->uuid = switch_core_strdup(term->pool, switch_core_session_get_uuid(session));
         switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Termination [%s] successfully instanciated as [%s] [%s]\n", term->name, dialstring, switch_core_session_get_uuid(session));   
+	channel = switch_core_session_get_channel(session);
+	switch_channel_set_private(channel, "_mg_term_", term);
+	switch_core_event_hook_add_recv_dtmf(session, mg_on_dtmf);
     }
     
     switch_set_flag(term, MGT_ACTIVE);