freetdm: export sip headers with TDM information on-demand

diff --git a/libs/freetdm/mod_freetdm/mod_freetdm.c b/libs/freetdm/mod_freetdm/mod_freetdm.c
index 8d0b34f056441e3c828f6e4c7c968eec7ad27b65..d2308a09639bba9af1aea72c619cc804aaf9351e 100755 (executable)
--- a/libs/freetdm/mod_freetdm/mod_freetdm.c
+++ b/libs/freetdm/mod_freetdm/mod_freetdm.c
@@ -80,6 +80,7 @@ static struct {
        switch_mutex_t *mutex;
        analog_option_t analog_options;
        switch_hash_t *ss7_configs;
+       int sip_headers;
 } globals;
 
 /* private data attached to each fs session */
@@ -1364,6 +1365,11 @@ ftdm_status_t ftdm_channel_from_event(ftdm_sigmsg_t *sigmsg, switch_core_session
        switch_channel_set_variable(channel, "freetdm_span_name", ftdm_channel_get_span_name(sigmsg->channel));
        switch_channel_set_variable_printf(channel, "freetdm_span_number", "%d", spanid);       
        switch_channel_set_variable_printf(channel, "freetdm_chan_number", "%d", chanid);
+       if (globals.sip_headers) {
+               switch_channel_set_variable(channel, "sip_h_X-FreeTDM-SpanName", ftdm_channel_get_span_name(sigmsg->channel));
+               switch_channel_set_variable_printf(channel, "sip_h_X-FreeTDM-SpanNumber", "%d", spanid);        
+               switch_channel_set_variable_printf(channel, "sip_h_X-FreeTDM-ChanNumber", "%d", chanid);
+       }
        if (channel_caller_data->raw_data_len) {
                switch_channel_set_variable_printf(channel, "freetdm_custom_call_data", "%s", channel_caller_data->raw_data);
        }
@@ -2184,6 +2190,8 @@ static switch_status_t load_config(void)
                                globals.debug = atoi(val);
                        } else if (!strcasecmp(var, "hold-music")) {
                                switch_set_string(globals.hold_music, val);
+                       } else if (!strcasecmp(var, "sip-headers")) {
+                               globals.sip_headers = switch_true(val);
                        } else if (!strcasecmp(var, "enable-analog-option")) {
                                globals.analog_options = enable_analog_option(val, globals.analog_options);
                        }