freeswitch/src/mod/endpoints/mod_sofia/sofia_glue.c

/* 
 * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
 * Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
 *
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
 *
 * The Initial Developer of the Original Code is
 * Anthony Minessale II <anthmct@yahoo.com>
 * Portions created by the Initial Developer are Copyright (C)
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * 
 * Anthony Minessale II <anthmct@yahoo.com>
 * Ken Rice, Asteria Solutions Group, Inc <ken@asteriasgi.com>
 * Paul D. Tinsley <pdt at jackhammer.org>
 * Bret McDanel <trixter AT 0xdecafbad.com>
 *
 *
 * sofia_glue.c -- SOFIA SIP Endpoint (code to tie sofia to freeswitch)
 *
 */
#include "mod_sofia.h"

switch_status_t sofia_glue_tech_choose_video_port(private_object_t *tech_pvt);
switch_status_t sofia_glue_tech_set_video_codec(private_object_t *tech_pvt, int force);

void sofia_glue_set_local_sdp(private_object_t *tech_pvt, char *ip, uint32_t port, char *sr, int force)
{
	char buf[2048];
	int ptime = 0;
	int rate = 0;
	uint32_t v_port;

	if (!force && !ip && !sr && switch_test_flag(tech_pvt, TFLAG_NOMEDIA)) {
		return;
	}

	if (!ip) {
		if (!(ip = tech_pvt->adv_sdp_audio_ip)) {
			ip = tech_pvt->proxy_sdp_audio_ip;
		}
	}
	if (!port) {
		if (!(port = tech_pvt->adv_sdp_audio_port)) {
			port = tech_pvt->proxy_sdp_audio_port;
		}
	}


	if (!sr) {
		sr = "sendrecv";
	}

	if (!tech_pvt->owner_id) {
		tech_pvt->owner_id = (uint32_t) time(NULL) - port;
	}

	if (!tech_pvt->session_id) {
		tech_pvt->session_id = tech_pvt->owner_id ;
	}

	tech_pvt->session_id++;
	
	snprintf(buf, sizeof(buf),
			 "v=0\n"
			 "o=FreeSWITCH %010u %010u IN IP4 %s\n"
			 "s=FreeSWITCH\n" 
			 "c=IN IP4 %s\n" "t=0 0\n" 
			 "a=%s\n" 
			 "m=audio %d RTP/AVP", tech_pvt->owner_id, tech_pvt->session_id, ip, ip, sr, port);
	
	if (tech_pvt->rm_encoding) {
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", tech_pvt->pt);
	} else if (tech_pvt->num_codecs) {
		int i;
		for (i = 0; i < tech_pvt->num_codecs; i++) {
			const switch_codec_implementation_t *imp = tech_pvt->codecs[i];

			if (imp->codec_type != SWITCH_CODEC_TYPE_AUDIO) {
				continue;
			}

			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", imp->ianacode);
			if (!ptime) {
				ptime = imp->microseconds_per_frame / 1000;
			}
		}
	}

	if (tech_pvt->te > 95) {
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", tech_pvt->te);
	}

	if (tech_pvt->cng_pt) {
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", tech_pvt->cng_pt);
	}

	snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "\n");

	if (tech_pvt->rm_encoding) {
		rate = tech_pvt->rm_rate;
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d %s/%ld\n", tech_pvt->pt, tech_pvt->rm_encoding, tech_pvt->rm_rate);
		if (tech_pvt->fmtp_out) {
			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=fmtp:%d %s\n", tech_pvt->pt, tech_pvt->fmtp_out);
		}
		if (tech_pvt->read_codec.implementation && !ptime) {
			ptime = tech_pvt->read_codec.implementation->microseconds_per_frame / 1000;
		}

	} else if (tech_pvt->num_codecs) {
		int i;
		for (i = 0; i < tech_pvt->num_codecs; i++) {
			const switch_codec_implementation_t *imp = tech_pvt->codecs[i];
			uint32_t rfc_3551_sucks = imp->samples_per_second;

			if (imp->codec_type != SWITCH_CODEC_TYPE_AUDIO) {
				continue;
			}

			if (!rate) {
				rate = imp->samples_per_second;
			}
			if (ptime && ptime != imp->microseconds_per_frame / 1000) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "ptime %u != advertised ptime %u\n", imp->microseconds_per_frame / 1000, ptime);
			}

			if (rfc_3551_sucks && imp->ianacode == 9) {
				rfc_3551_sucks = 8000;
			}

			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d %s/%d\n", imp->ianacode, imp->iananame, rfc_3551_sucks);
			if (imp->fmtp) {
				snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=fmtp:%d %s\n", imp->ianacode, imp->fmtp);
			}
		}
	}

	if (tech_pvt->te > 95) {
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d telephone-event/8000\na=fmtp:%d 0-16\n", tech_pvt->te, tech_pvt->te);
	}
	if (tech_pvt->cng_pt) {
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d CN/%d\n", tech_pvt->cng_pt, rate);
		if (!tech_pvt->rm_encoding) {
			tech_pvt->cng_pt = 0;
		}
	}
	if (ptime) {
		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=ptime:%d\n", ptime);
	}


	if (switch_test_flag(tech_pvt, TFLAG_VIDEO)) {
		sofia_glue_tech_choose_video_port(tech_pvt);
		if ((v_port = tech_pvt->adv_sdp_video_port)) {
			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "m=video %d RTP/AVP", v_port);
			sofia_glue_tech_set_video_codec(tech_pvt, 0);	


			/*****************************/
			if (tech_pvt->video_rm_encoding) {
				snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", tech_pvt->video_pt);
			} else if (tech_pvt->num_codecs) {
				int i;
				for (i = 0; i < tech_pvt->num_codecs; i++) {
					const switch_codec_implementation_t *imp = tech_pvt->codecs[i];
				
					if (imp->codec_type != SWITCH_CODEC_TYPE_VIDEO) {
						continue;
					}
				
					snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", imp->ianacode);
					if (!ptime) {
						ptime = imp->microseconds_per_frame / 1000;
					}
				}
			}

			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "\n");

			if (tech_pvt->rm_encoding) {
				rate = tech_pvt->video_rm_rate;
				snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d %s/%ld\n", tech_pvt->video_pt, tech_pvt->video_rm_encoding, tech_pvt->video_rm_rate);
				if (tech_pvt->video_fmtp_out) {
					snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=fmtp:%d %s\n", tech_pvt->video_pt, tech_pvt->video_fmtp_out);
				}
			} else if (tech_pvt->num_codecs) {
				int i;
				for (i = 0; i < tech_pvt->num_codecs; i++) {
					const switch_codec_implementation_t *imp = tech_pvt->codecs[i];
				
					if (imp->codec_type != SWITCH_CODEC_TYPE_VIDEO) {
						continue;
					}

					if (!rate) {
						rate = imp->samples_per_second;
					}
			
				
					snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d %s/%d\n", imp->ianacode, imp->iananame, imp->samples_per_second);
					if (imp->fmtp) {
						snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=fmtp:%d %s\n", imp->ianacode, imp->fmtp);
					}
				}
			}
		}
	}
	/*****************************/

	tech_pvt->local_sdp_str = switch_core_session_strdup(tech_pvt->session, buf);
}

void sofia_glue_tech_prepare_codecs(private_object_t *tech_pvt)
{
	switch_channel_t *channel;
	char *abs, *codec_string = NULL;
	char *ocodec = NULL;

	if (switch_test_flag(tech_pvt, TFLAG_NOMEDIA)) {
		goto end;
	}

	if (tech_pvt->num_codecs) {
		goto end;
	}

	assert(tech_pvt->session != NULL);

	channel = switch_core_session_get_channel(tech_pvt->session);
	assert(channel != NULL);


	if ((abs = switch_channel_get_variable(channel, "absolute_codec_string"))) {
		codec_string = abs;
	} else {
		if (!(codec_string = switch_channel_get_variable(channel, "codec_string"))) {
			if (tech_pvt->profile->codec_string) {
				codec_string = tech_pvt->profile->codec_string;
			}
		}

		if ((ocodec = switch_channel_get_variable(channel, SWITCH_ORIGINATOR_CODEC_VARIABLE))) {
			if (!codec_string || (tech_pvt->profile->pflags & PFLAG_DISABLE_TRANSCODING)) {
				codec_string = ocodec;
			} else {
				if (!(codec_string = switch_core_session_sprintf(tech_pvt->session, "%s,%s", ocodec, codec_string))) {
					codec_string = ocodec;
				}
			}
		}
	}

	if (codec_string) {
		char *tmp_codec_string;
		if ((tmp_codec_string = switch_core_session_strdup(tech_pvt->session, codec_string))) {
			tech_pvt->codec_order_last = switch_separate_string(tmp_codec_string, ',', tech_pvt->codec_order, SWITCH_MAX_CODECS);
			tech_pvt->num_codecs =
				switch_loadable_module_get_codecs_sorted(tech_pvt->codecs, SWITCH_MAX_CODECS, tech_pvt->codec_order, tech_pvt->codec_order_last);
		}
	} else {
		tech_pvt->num_codecs =
			switch_loadable_module_get_codecs(switch_core_session_get_pool(tech_pvt->session), tech_pvt->codecs,
											  sizeof(tech_pvt->codecs) / sizeof(tech_pvt->codecs[0]));
	}

 end:

	sofia_glue_check_video_codecs(tech_pvt);

}

void sofia_glue_check_video_codecs(private_object_t *tech_pvt) 
{
	if (tech_pvt->num_codecs && !switch_test_flag(tech_pvt, TFLAG_VIDEO)) {
		int i;
		tech_pvt->video_count = 0;
		for (i = 0; i < tech_pvt->num_codecs; i++) {
			if (tech_pvt->codecs[i]->codec_type == SWITCH_CODEC_TYPE_VIDEO) {
				tech_pvt->video_count++;
			}
		}
		if (tech_pvt->video_count) {
			switch_set_flag_locked(tech_pvt, TFLAG_VIDEO);
		}
	}
}


void sofia_glue_attach_private(switch_core_session_t *session, sofia_profile_t *profile, private_object_t *tech_pvt, const char *channame)
{
	switch_channel_t *channel;
	char name[256];

	assert(session != NULL);
	assert(profile != NULL);
	assert(tech_pvt != NULL);

	switch_core_session_add_stream(session, NULL);
	channel = switch_core_session_get_channel(session);

	//switch_channel_set_flag(channel, CF_ACCEPT_CNG);


	switch_mutex_lock(tech_pvt->flag_mutex);
	switch_mutex_lock(profile->flag_mutex);
	tech_pvt->flags = profile->flags;
	tech_pvt->profile = profile;
	profile->inuse++;
	switch_mutex_unlock(profile->flag_mutex);
	switch_mutex_unlock(tech_pvt->flag_mutex);

	if (tech_pvt->bte) {
		tech_pvt->te = tech_pvt->bte;
	} else if (!tech_pvt->te) {
		tech_pvt->te = profile->te;
	}

	if (tech_pvt->bcng_pt) {
		tech_pvt->cng_pt = tech_pvt->bcng_pt;
	} else if (!tech_pvt->cng_pt) {
		tech_pvt->cng_pt = profile->cng_pt;
	}

	tech_pvt->session = session;
	switch_core_session_set_private(session, tech_pvt);


	snprintf(name, sizeof(name), "sofia/%s/%s", profile->name, channame);
	switch_channel_set_name(channel, name);
	//sofia_glue_tech_prepare_codecs(tech_pvt);

}

switch_status_t sofia_glue_ext_address_lookup(char **ip, switch_port_t *port, char *sourceip, switch_memory_pool_t *pool)
{
	char *error;

	if (!sourceip) {
		return SWITCH_STATUS_FALSE;
	}

	if (!strncasecmp(sourceip, "stun:", 5)) {
		char *stun_ip = sourceip + 5;
		if (!stun_ip) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Stun Failed! NO STUN SERVER\n");
			return SWITCH_STATUS_FALSE;
		}
		if (switch_stun_lookup(ip, port, stun_ip, SWITCH_STUN_DEFAULT_PORT, &error, pool) != SWITCH_STATUS_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Stun Failed! %s:%d [%s]\n", stun_ip, SWITCH_STUN_DEFAULT_PORT, error);
			return SWITCH_STATUS_FALSE;
		}
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Stun Success [%s]:[%d]\n", *ip, *port);
	} else {
		*ip = sourceip;
	}
	return SWITCH_STATUS_SUCCESS;
}


switch_status_t sofia_glue_tech_choose_port(private_object_t *tech_pvt)
{
	char *ip = tech_pvt->profile->rtpip;
	switch_channel_t *channel;
	switch_port_t sdp_port;
	char tmp[50];

	channel = switch_core_session_get_channel(tech_pvt->session);

	if (switch_test_flag(tech_pvt, TFLAG_NOMEDIA) || tech_pvt->adv_sdp_audio_port) {
		return SWITCH_STATUS_SUCCESS;
	}

	tech_pvt->local_sdp_audio_ip = ip;
	tech_pvt->local_sdp_audio_port = switch_rtp_request_port();
	sdp_port = tech_pvt->local_sdp_audio_port;

	if (tech_pvt->profile->extrtpip) {
		if (sofia_glue_ext_address_lookup(&ip, &sdp_port, tech_pvt->profile->extrtpip, switch_core_session_get_pool(tech_pvt->session)) !=
			SWITCH_STATUS_SUCCESS) {
			return SWITCH_STATUS_FALSE;
		}
	}

	tech_pvt->adv_sdp_audio_ip = switch_core_session_strdup(tech_pvt->session, ip);
	tech_pvt->adv_sdp_audio_port = sdp_port;

	snprintf(tmp, sizeof(tmp), "%d", sdp_port);
	switch_channel_set_variable(channel, SWITCH_LOCAL_MEDIA_IP_VARIABLE, tech_pvt->adv_sdp_audio_ip);
	switch_channel_set_variable(channel, SWITCH_LOCAL_MEDIA_PORT_VARIABLE, tmp);


	return SWITCH_STATUS_SUCCESS;
}



switch_status_t sofia_glue_tech_choose_video_port(private_object_t *tech_pvt)
{
	char *ip = tech_pvt->profile->rtpip;
	switch_channel_t *channel;
	switch_port_t sdp_port;
	char tmp[50];

	channel = switch_core_session_get_channel(tech_pvt->session);

	if (switch_test_flag(tech_pvt, TFLAG_NOMEDIA) || tech_pvt->adv_sdp_video_port) {
		return SWITCH_STATUS_SUCCESS;
	}

	
	tech_pvt->local_sdp_video_port = switch_rtp_request_port();
	sdp_port = tech_pvt->local_sdp_video_port;

	if (tech_pvt->profile->extrtpip) {
		if (sofia_glue_ext_address_lookup(&ip, &sdp_port, tech_pvt->profile->extrtpip, switch_core_session_get_pool(tech_pvt->session)) !=
			SWITCH_STATUS_SUCCESS) {
			return SWITCH_STATUS_FALSE;
		}
	}

	tech_pvt->adv_sdp_video_port = sdp_port;

	snprintf(tmp, sizeof(tmp), "%d", sdp_port);
	switch_channel_set_variable(channel, SWITCH_LOCAL_VIDEO_IP_VARIABLE, tech_pvt->adv_sdp_audio_ip);
	switch_channel_set_variable(channel, SWITCH_LOCAL_VIDEO_PORT_VARIABLE, tmp);


	return SWITCH_STATUS_SUCCESS;
}

switch_status_t sofia_glue_do_invite(switch_core_session_t *session)
{
	char rpid[1024] = { 0 };
	char alert_info[1024] = { 0 };
	char max_forwards[8] = { 0 };
	char *alertbuf;
	char *forwardbuf;
	int forwardval;
	private_object_t *tech_pvt;
	switch_channel_t *channel = NULL;
	switch_caller_profile_t *caller_profile;
	char *cid_name, *cid_num;
	char *e_dest = NULL;
	const char *holdstr = "";
	switch_stream_handle_t stream = { 0 };
	switch_hash_index_t *hi;
	void *vval;
	char *extra_headers = NULL;
	const void *vvar;
	switch_status_t status = SWITCH_STATUS_FALSE;
	char *rep;

	channel = switch_core_session_get_channel(session);
	assert(channel != NULL);

	rep = switch_channel_get_variable(channel, SOFIA_REPLACES_HEADER);

	tech_pvt = (private_object_t *) switch_core_session_get_private(session);
	assert(tech_pvt != NULL);

	caller_profile = switch_channel_get_caller_profile(channel);

	cid_name = (char *) caller_profile->caller_id_name;
	cid_num = (char *) caller_profile->caller_id_number;
	sofia_glue_tech_prepare_codecs(tech_pvt);

	if (!tech_pvt->from_str) {
		tech_pvt->from_str = switch_core_session_sprintf(tech_pvt->session, "\"%s\" <sip:%s%s%s>",
														 cid_name,
														 cid_num,
														 !switch_strlen_zero(cid_num) ? "@" : "",
														 tech_pvt->profile->extsipip ? tech_pvt->profile->extsipip : tech_pvt->profile->sipip);

	}

	if (!tech_pvt->from_str) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
		return SWITCH_STATUS_FALSE;
	}

	


	if ((alertbuf = switch_channel_get_variable(channel, "alert_info"))) {
		snprintf(alert_info, sizeof(alert_info) - 1, "Alert-Info: %s", alertbuf);
	}

	if ((forwardbuf = switch_channel_get_variable(channel, SWITCH_MAX_FORWARDS_VARIABLE))) {
		forwardval = atoi(forwardbuf) - 1;
		snprintf(max_forwards, sizeof(max_forwards) - 1, "%d", forwardval);
	}

	if (sofia_glue_tech_choose_port(tech_pvt) != SWITCH_STATUS_SUCCESS) {
		return status;
	}

	sofia_glue_set_local_sdp(tech_pvt, NULL, 0, NULL, 0);

	switch_set_flag_locked(tech_pvt, TFLAG_READY);

	// forge a RPID for now KHR  -- Should wrap this in an if statement so it can be turned on and off
	if (switch_test_flag(caller_profile, SWITCH_CPF_SCREEN)) {
		const char *priv = "off";
		const char *screen = "no";
		if (switch_test_flag(caller_profile, SWITCH_CPF_HIDE_NAME)) {
			priv = "name";
			if (switch_test_flag(caller_profile, SWITCH_CPF_HIDE_NUMBER)) {
				priv = "yes";
			}
		} else if (switch_test_flag(caller_profile, SWITCH_CPF_HIDE_NUMBER)) {
			priv = "yes";
		}
		if (switch_test_flag(caller_profile, SWITCH_CPF_SCREEN)) {
			screen = "yes";
		}

		snprintf(rpid, sizeof(rpid) - 1, "Remote-Party-ID: %s;party=calling;screen=%s;privacy=%s", tech_pvt->from_str, screen, priv);

	}

	if (!tech_pvt->nh) {
		char *url = sofia_glue_get_url_from_contact(tech_pvt->dest, 1);
		tech_pvt->nh = nua_handle(tech_pvt->profile->nua, NULL,
								  NUTAG_URL(url),
								  SIPTAG_TO_STR(tech_pvt->dest_to),
								  TAG_IF(tech_pvt->gateway_from_str, SIPTAG_FROM_STR(tech_pvt->gateway_from_str)),
								  TAG_IF(!tech_pvt->gateway_from_str, SIPTAG_FROM_STR(tech_pvt->from_str)),
								  TAG_IF(tech_pvt->invite_contact, SIPTAG_CONTACT_STR(tech_pvt->invite_contact)),
								  TAG_IF(!tech_pvt->invite_contact, SIPTAG_CONTACT_STR(tech_pvt->profile->url)),
								  TAG_END());
		switch_safe_free(url);

		if (!(tech_pvt->sofia_private = malloc(sizeof(*tech_pvt->sofia_private)))) {
			abort();
		}
		memset(tech_pvt->sofia_private, 0, sizeof(*tech_pvt->sofia_private));
		tech_pvt->sofia_private->home = su_home_new(sizeof(*tech_pvt->sofia_private->home));
		switch_copy_string(tech_pvt->sofia_private->uuid, switch_core_session_get_uuid(session), sizeof(tech_pvt->sofia_private->uuid));
		nua_handle_bind(tech_pvt->nh, tech_pvt->sofia_private);

	}


	if (tech_pvt->e_dest && (e_dest = strdup(tech_pvt->e_dest))) {
		char *user = e_dest, *host = NULL;
		char hash_key[256] = "";

		if ((host = strchr(user, '@'))) {
			*host++ = '\0';
		}
		snprintf(hash_key, sizeof(hash_key), "%s%s%s", user, host, cid_num);

		tech_pvt->chat_from = tech_pvt->from_str;
		tech_pvt->chat_to = tech_pvt->dest;
		tech_pvt->hash_key = switch_core_session_strdup(tech_pvt->session, hash_key);
		switch_core_hash_insert(tech_pvt->profile->chat_hash, tech_pvt->hash_key, tech_pvt);
		free(e_dest);
	}

	holdstr = switch_test_flag(tech_pvt, TFLAG_SIP_HOLD) ? "*" : "";


	SWITCH_STANDARD_STREAM(stream);
	if ((hi = switch_channel_variable_first(channel, switch_core_session_get_pool(tech_pvt->session)))) {
		for (; hi; hi = switch_hash_next(hi)) {
			switch_hash_this(hi, &vvar, NULL, &vval);
			if (vvar && vval) {
				const char *name = vvar;
				char *value = (char *) vval;
				
				if (!strncasecmp(name, SOFIA_SIP_HEADER_PREFIX, strlen(SOFIA_SIP_HEADER_PREFIX))) {
					const char *hname = name + strlen(SOFIA_SIP_HEADER_PREFIX);
					stream.write_function(&stream, "%s: %s\r\n", hname, value);
				}
			}
		}
		switch_channel_variable_last(channel);
	}

	if (stream.data) {
		extra_headers = stream.data;
	}

	nua_invite(tech_pvt->nh,
			   TAG_IF(!switch_strlen_zero(rpid), SIPTAG_HEADER_STR(rpid)),
			   TAG_IF(!switch_strlen_zero(alert_info), SIPTAG_HEADER_STR(alert_info)),
			   TAG_IF(!switch_strlen_zero(extra_headers), SIPTAG_HEADER_STR(extra_headers)),
			   TAG_IF(!switch_strlen_zero(max_forwards), SIPTAG_MAX_FORWARDS_STR(max_forwards)),
			   SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
			   SOATAG_RTP_SORT(SOA_RTP_SORT_REMOTE),
			   SOATAG_RTP_SELECT(SOA_RTP_SELECT_ALL), TAG_IF(rep, SIPTAG_REPLACES_STR(rep)), SOATAG_HOLD(holdstr), TAG_END());

	switch_safe_free(stream.data);

	return SWITCH_STATUS_SUCCESS;

}



void sofia_glue_do_xfer_invite(switch_core_session_t *session)
{
	char rpid[1024];
	private_object_t *tech_pvt;
	switch_channel_t *channel = NULL;
	switch_caller_profile_t *caller_profile;

	channel = switch_core_session_get_channel(session);
	assert(channel != NULL);

	tech_pvt = (private_object_t *) switch_core_session_get_private(session);
	assert(tech_pvt != NULL);

	caller_profile = switch_channel_get_caller_profile(channel);



	if ((tech_pvt->from_str = switch_core_session_sprintf(session, "\"%s\" <sip:%s@%s>",
														  (char *) caller_profile->caller_id_name,
														  (char *) caller_profile->caller_id_number,
														  tech_pvt->profile->extsipip ? tech_pvt->profile->extsipip : tech_pvt->profile->sipip))) {

		char *rep = switch_channel_get_variable(channel, SOFIA_REPLACES_HEADER);

		tech_pvt->nh2 = nua_handle(tech_pvt->profile->nua, NULL,
								   SIPTAG_TO_STR(tech_pvt->dest), SIPTAG_FROM_STR(tech_pvt->from_str), SIPTAG_CONTACT_STR(tech_pvt->profile->url),
								   TAG_END());


		nua_handle_bind(tech_pvt->nh2, tech_pvt->sofia_private);

		nua_invite(tech_pvt->nh2,
				   TAG_IF(rpid, SIPTAG_HEADER_STR(rpid)),
				   SIPTAG_CONTACT_STR(tech_pvt->profile->url),
				   SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
				   SOATAG_RTP_SORT(SOA_RTP_SORT_REMOTE), SOATAG_RTP_SELECT(SOA_RTP_SELECT_ALL), TAG_IF(rep, SIPTAG_REPLACES_STR(rep)), TAG_END());
	} else {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
	}

}

void sofia_glue_tech_absorb_sdp(private_object_t *tech_pvt)
{
	switch_channel_t *channel;
	char *sdp_str;

	channel = switch_core_session_get_channel(tech_pvt->session);
	assert(channel != NULL);

	if ((sdp_str = switch_channel_get_variable(channel, SWITCH_B_SDP_VARIABLE))) {
		sdp_parser_t *parser;
		sdp_session_t *sdp;
		sdp_media_t *m;
		sdp_connection_t *connection;

		if ((parser = sdp_parse(NULL, sdp_str, (int) strlen(sdp_str), 0))) {
			if ((sdp = sdp_session(parser))) {
				for (m = sdp->sdp_media; m; m = m->m_next) {
					if (m->m_type != sdp_media_audio) {
						continue;
					}

					connection = sdp->sdp_connection;
					if (m->m_connections) {
						connection = m->m_connections;
					}

					if (connection) {
						tech_pvt->proxy_sdp_audio_ip = switch_core_session_strdup(tech_pvt->session, connection->c_address);
					}
					tech_pvt->proxy_sdp_audio_port = (switch_port_t) m->m_port;
					if (tech_pvt->proxy_sdp_audio_ip && tech_pvt->proxy_sdp_audio_port) {
						break;
					}
				}
			}
			sdp_parser_free(parser);
		}
		tech_pvt->local_sdp_str = switch_core_session_strdup(tech_pvt->session, sdp_str);
	}
}

void sofia_glue_deactivate_rtp(private_object_t *tech_pvt)
{
	int loops = 0;				//, sock = -1;
	if (switch_rtp_ready(tech_pvt->rtp_session)) {
		while (loops < 10 && (switch_test_flag(tech_pvt, TFLAG_READING) || switch_test_flag(tech_pvt, TFLAG_WRITING))) {
			switch_yield(10000);
			loops++;
		}
		switch_rtp_destroy(&tech_pvt->rtp_session);
	}
	if (switch_rtp_ready(tech_pvt->video_rtp_session)) {
		switch_rtp_destroy(&tech_pvt->video_rtp_session);
	}
}

switch_status_t sofia_glue_tech_set_video_codec(private_object_t *tech_pvt, int force)
{
	switch_channel_t *channel;

	if (tech_pvt->video_read_codec.implementation) {
		if (!force) {
			return SWITCH_STATUS_SUCCESS;
		}
		if (strcasecmp(tech_pvt->video_read_codec.implementation->iananame, tech_pvt->video_rm_encoding) ||
			tech_pvt->video_read_codec.implementation->samples_per_second != tech_pvt->video_rm_rate) {

			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Changing Codec from %s to %s\n",
							  tech_pvt->video_read_codec.implementation->iananame, tech_pvt->video_rm_encoding);
			switch_core_codec_destroy(&tech_pvt->video_read_codec);
			switch_core_codec_destroy(&tech_pvt->video_write_codec);
			//switch_core_session_reset(tech_pvt->session);
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Already using %s\n", tech_pvt->video_read_codec.implementation->iananame);
			return SWITCH_STATUS_SUCCESS;
		}
	}

	channel = switch_core_session_get_channel(tech_pvt->session);
	assert(channel != NULL);

	if (!tech_pvt->video_rm_encoding) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec with no name?\n");
		return SWITCH_STATUS_FALSE;
	}

	if (switch_core_codec_init(&tech_pvt->video_read_codec,
							   tech_pvt->video_rm_encoding,
							   tech_pvt->video_rm_fmtp,
							   tech_pvt->video_rm_rate,
							   0,
							   //tech_pvt->video_codec_ms,
							   1,
							   SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
							   NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
		return SWITCH_STATUS_FALSE;
	} else {
		if (switch_core_codec_init(&tech_pvt->video_write_codec,
								   tech_pvt->video_rm_encoding,
								   tech_pvt->video_rm_fmtp,
								   tech_pvt->video_rm_rate,
								   0,//tech_pvt->video_codec_ms,
								   1,
								   SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
								   NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
			return SWITCH_STATUS_FALSE;
		} else {
			int ms;
			tech_pvt->video_read_frame.rate = tech_pvt->video_rm_rate;
			ms = tech_pvt->video_write_codec.implementation->microseconds_per_frame / 1000;
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set VIDEO Codec %s %s/%ld %d ms\n",
							  switch_channel_get_name(channel), tech_pvt->video_rm_encoding, tech_pvt->video_rm_rate, tech_pvt->video_codec_ms);
			tech_pvt->video_read_frame.codec = &tech_pvt->video_read_codec;
			
			//switch_core_session_set_read_codec(tech_pvt->session, &tech_pvt->read_codec);
			//switch_core_session_set_write_codec(tech_pvt->session, &tech_pvt->write_codec);
			tech_pvt->fmtp_out = switch_core_session_strdup(tech_pvt->session, tech_pvt->video_write_codec.fmtp_out);
		}
	}
	return SWITCH_STATUS_SUCCESS;
}

switch_status_t sofia_glue_tech_set_codec(private_object_t *tech_pvt, int force)
{
	switch_channel_t *channel;

	if (tech_pvt->read_codec.implementation) {
		if (!force) {
			return SWITCH_STATUS_SUCCESS;
		}
		if (strcasecmp(tech_pvt->read_codec.implementation->iananame, tech_pvt->rm_encoding) ||
			tech_pvt->read_codec.implementation->samples_per_second != tech_pvt->rm_rate) {

			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Changing Codec from %s to %s\n",
							  tech_pvt->read_codec.implementation->iananame, tech_pvt->rm_encoding);
			switch_core_codec_destroy(&tech_pvt->read_codec);
			switch_core_codec_destroy(&tech_pvt->write_codec);
			switch_core_session_reset(tech_pvt->session);
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Already using %s\n", tech_pvt->read_codec.implementation->iananame);
			return SWITCH_STATUS_SUCCESS;
		}
	}

	channel = switch_core_session_get_channel(tech_pvt->session);
	assert(channel != NULL);

	if (!tech_pvt->rm_encoding) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec with no name?\n");
		return SWITCH_STATUS_FALSE;
	}

	if (switch_core_codec_init(&tech_pvt->read_codec,
							   tech_pvt->rm_encoding,
							   tech_pvt->rm_fmtp,
							   tech_pvt->rm_rate,
							   tech_pvt->codec_ms,
							   1,
							   SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE | tech_pvt->profile->codec_flags,
							   NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
		return SWITCH_STATUS_FALSE;
	} else {
		if (switch_core_codec_init(&tech_pvt->write_codec,
								   tech_pvt->rm_encoding,
								   tech_pvt->rm_fmtp,
								   tech_pvt->rm_rate,
								   tech_pvt->codec_ms,
								   1,
								   SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE | tech_pvt->profile->codec_flags,
								   NULL, switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
			return SWITCH_STATUS_FALSE;
		} else {
			int ms;
			tech_pvt->read_frame.rate = tech_pvt->rm_rate;
			ms = tech_pvt->write_codec.implementation->microseconds_per_frame / 1000;
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set Codec %s %s/%ld %d ms\n",
							  switch_channel_get_name(channel), tech_pvt->rm_encoding, tech_pvt->rm_rate, tech_pvt->codec_ms);
			tech_pvt->read_frame.codec = &tech_pvt->read_codec;
			
			switch_core_session_set_read_codec(tech_pvt->session, &tech_pvt->read_codec);
			switch_core_session_set_write_codec(tech_pvt->session, &tech_pvt->write_codec);
			tech_pvt->fmtp_out = switch_core_session_strdup(tech_pvt->session, tech_pvt->write_codec.fmtp_out);
		}
	}
	return SWITCH_STATUS_SUCCESS;
}





switch_status_t sofia_glue_activate_rtp(private_object_t *tech_pvt)
{
	int bw, ms;
	switch_channel_t *channel;
	const char *err = NULL;
	char *val = NULL;
	switch_rtp_flag_t flags;
	switch_status_t status;
	char tmp[50];
	assert(tech_pvt != NULL);

	channel = switch_core_session_get_channel(tech_pvt->session);
	assert(channel != NULL);

	if (switch_test_flag(tech_pvt, TFLAG_NOMEDIA)) {
		return SWITCH_STATUS_SUCCESS;
	}

	if (switch_rtp_ready(tech_pvt->rtp_session) && !switch_test_flag(tech_pvt, TFLAG_REINVITE)) {
		return SWITCH_STATUS_SUCCESS;
	}

	if ((status = sofia_glue_tech_set_codec(tech_pvt, 0)) != SWITCH_STATUS_SUCCESS) {
		return status;
	}

	bw = tech_pvt->read_codec.implementation->bits_per_second;
	ms = tech_pvt->read_codec.implementation->microseconds_per_frame;

	flags = (switch_rtp_flag_t) (SWITCH_RTP_FLAG_AUTOADJ | SWITCH_RTP_FLAG_DATAWAIT);

	if (switch_test_flag(tech_pvt, TFLAG_BUGGY_2833)) {
		flags |= SWITCH_RTP_FLAG_BUGGY_2833;
	}

	if ((tech_pvt->profile->pflags & PFLAG_PASS_RFC2833)
		|| ((val = switch_channel_get_variable(channel, "pass_rfc2833")) && switch_true(val))) {
		flags |= SWITCH_RTP_FLAG_PASS_RFC2833;
	}

	if (!((tech_pvt->profile->pflags & PFLAG_REWRITE_TIMESTAMPS) || 
		  ((val = switch_channel_get_variable(channel, "rtp_rewrite_timestamps")) && switch_true(val)))) {
		flags |= SWITCH_RTP_FLAG_RAW_WRITE;
	}

	if (tech_pvt->cng_pt) {
		flags |= SWITCH_RTP_FLAG_AUTO_CNG;
	}

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "AUDIO RTP [%s] %s:%d->%s:%d codec: %u ms: %d\n",
					  switch_channel_get_name(channel),
					  tech_pvt->local_sdp_audio_ip,
					  tech_pvt->local_sdp_audio_port,
					  tech_pvt->remote_sdp_audio_ip,
					  tech_pvt->remote_sdp_audio_port, tech_pvt->agreed_pt, tech_pvt->read_codec.implementation->microseconds_per_frame / 1000);

	snprintf(tmp, sizeof(tmp), "%d", tech_pvt->remote_sdp_audio_port);
	switch_channel_set_variable(channel, SWITCH_LOCAL_MEDIA_IP_VARIABLE, tech_pvt->adv_sdp_audio_ip);
	switch_channel_set_variable(channel, SWITCH_LOCAL_MEDIA_PORT_VARIABLE, tmp);

	if (tech_pvt->rtp_session && switch_test_flag(tech_pvt, TFLAG_REINVITE)) {
		switch_clear_flag_locked(tech_pvt, TFLAG_REINVITE);

		if (switch_rtp_set_remote_address(tech_pvt->rtp_session, tech_pvt->remote_sdp_audio_ip, tech_pvt->remote_sdp_audio_port, &err) !=
			SWITCH_STATUS_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AUDIO RTP REPORTS ERROR: [%s]\n", err);
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "AUDIO RTP CHANGING DEST TO: [%s:%d]\n",
							  tech_pvt->remote_sdp_audio_ip, tech_pvt->remote_sdp_audio_port);
			/* Reactivate the NAT buster flag. */
			switch_rtp_set_flag(tech_pvt->rtp_session, SWITCH_RTP_FLAG_AUTOADJ);
		}
		return SWITCH_STATUS_SUCCESS;
	}

	tech_pvt->rtp_session = switch_rtp_new(tech_pvt->local_sdp_audio_ip,
										   tech_pvt->local_sdp_audio_port,
										   tech_pvt->remote_sdp_audio_ip,
										   tech_pvt->remote_sdp_audio_port,
										   tech_pvt->agreed_pt,
										   tech_pvt->read_codec.implementation->samples_per_frame,
										   tech_pvt->codec_ms * 1000,
										   (switch_rtp_flag_t) flags,
										   NULL, tech_pvt->profile->timer_name, &err, switch_core_session_get_pool(tech_pvt->session));

	if (switch_rtp_ready(tech_pvt->rtp_session)) {
		uint8_t vad_in = switch_test_flag(tech_pvt, TFLAG_VAD_IN) ? 1 : 0;
		uint8_t vad_out = switch_test_flag(tech_pvt, TFLAG_VAD_OUT) ? 1 : 0;
		uint8_t inb = switch_test_flag(tech_pvt, TFLAG_OUTBOUND) ? 0 : 1;

		tech_pvt->ssrc = switch_rtp_get_ssrc(tech_pvt->rtp_session);
		switch_set_flag_locked(tech_pvt, TFLAG_RTP);
		switch_set_flag_locked(tech_pvt, TFLAG_IO);

		if ((vad_in && inb) || (vad_out && !inb)) {
			switch_rtp_enable_vad(tech_pvt->rtp_session, tech_pvt->session, &tech_pvt->read_codec, SWITCH_VAD_FLAG_TALKING);
			switch_set_flag_locked(tech_pvt, TFLAG_VAD);
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "AUDIO RTP Engage VAD for %s ( %s %s )\n",
							  switch_channel_get_name(switch_core_session_get_channel(tech_pvt->session)), vad_in ? "in" : "", vad_out ? "out" : "");
		}

		if (tech_pvt->te) {
			switch_rtp_set_telephony_event(tech_pvt->rtp_session, tech_pvt->te);
		}
		if (tech_pvt->cng_pt) {
			switch_rtp_set_cng_pt(tech_pvt->rtp_session, tech_pvt->cng_pt);
		}
		
		sofia_glue_check_video_codecs(tech_pvt);

		if (switch_test_flag(tech_pvt, TFLAG_VIDEO) && tech_pvt->video_rm_encoding) {
			flags = (switch_rtp_flag_t) (SWITCH_RTP_FLAG_AUTOADJ | SWITCH_RTP_FLAG_DATAWAIT | SWITCH_RTP_FLAG_NOBLOCK | SWITCH_RTP_FLAG_RAW_WRITE);

			sofia_glue_tech_set_video_codec(tech_pvt, 0);

			tech_pvt->video_rtp_session = switch_rtp_new(tech_pvt->local_sdp_audio_ip,
													 tech_pvt->local_sdp_video_port,
													 tech_pvt->remote_sdp_video_ip,
													 tech_pvt->remote_sdp_video_port,
													 tech_pvt->video_agreed_pt,
													 tech_pvt->video_read_codec.implementation->samples_per_frame,
													 0,//tech_pvt->video_codec_ms * 1000,
													 (switch_rtp_flag_t) flags,
													 NULL, 
													 NULL,//tech_pvt->profile->timer_name, 
													 &err, switch_core_session_get_pool(tech_pvt->session));
			
			
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "VIDEO RTP [%s] %s:%d->%s:%d codec: %u ms: %d [%s]\n",
							  switch_channel_get_name(channel),
							  tech_pvt->local_sdp_audio_ip,
							  tech_pvt->local_sdp_video_port,
							  tech_pvt->remote_sdp_video_ip,
							  tech_pvt->remote_sdp_video_port, tech_pvt->video_agreed_pt,
							  0,//tech_pvt->video_read_codec.implementation->microseconds_per_frame / 1000,
							  switch_rtp_ready(tech_pvt->video_rtp_session) ? "SUCCESS" : err);
			

			if (switch_rtp_ready(tech_pvt->video_rtp_session)) {
				switch_channel_set_flag(channel, CF_VIDEO);
			}
		}

	} else {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "RTP REPORTS ERROR: [%s]\n", err);
		switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
		switch_clear_flag_locked(tech_pvt, TFLAG_IO);
		return SWITCH_STATUS_FALSE;
	}

	switch_set_flag_locked(tech_pvt, TFLAG_IO);
	return SWITCH_STATUS_SUCCESS;
}

switch_status_t sofia_glue_tech_media(private_object_t *tech_pvt, char *r_sdp)
{
	sdp_parser_t *parser = sdp_parse(NULL, r_sdp, (int) strlen(r_sdp), 0);
	sdp_session_t *sdp;
	uint8_t match = 0;
	switch_channel_t *channel = switch_core_session_get_channel(tech_pvt->session);

	assert(tech_pvt != NULL);

	if (switch_strlen_zero(r_sdp)) {
		return SWITCH_STATUS_FALSE;
	}

	if (tech_pvt->num_codecs) {
		if ((sdp = sdp_session(parser))) {
			match = sofia_glue_negotiate_sdp(tech_pvt->session, sdp);
		}
	}

	if (parser) {
		sdp_parser_free(parser);
	}

	if (match) {
		if (sofia_glue_tech_choose_port(tech_pvt) != SWITCH_STATUS_SUCCESS) {
			return SWITCH_STATUS_FALSE;
		}
		if (sofia_glue_activate_rtp(tech_pvt) != SWITCH_STATUS_SUCCESS) {
			return SWITCH_STATUS_FALSE;
		}
		switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "EARLY MEDIA");
		switch_set_flag_locked(tech_pvt, TFLAG_EARLY_MEDIA);
		switch_channel_mark_pre_answered(channel);
		return SWITCH_STATUS_SUCCESS;
	}

	return SWITCH_STATUS_FALSE;
}

uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, sdp_session_t *sdp)
{
	uint8_t match = 0;
	switch_payload_t te = 0, cng_pt = 0;
	private_object_t *tech_pvt;
	sdp_media_t *m;
	sdp_attribute_t *a;
	switch_channel_t *channel;
	int ptime = 0, dptime = 0;

	tech_pvt = switch_core_session_get_private(session);
	assert(tech_pvt != NULL);

	channel = switch_core_session_get_channel(session);

	if ((tech_pvt->origin = switch_core_session_strdup(session, (char *) sdp->sdp_origin->o_username))) {
		if (strstr(tech_pvt->origin, "CiscoSystemsSIP-GW-UserAgent")) {
			switch_set_flag_locked(tech_pvt, TFLAG_BUGGY_2833);
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Activate Buggy RFC2833 Mode!\n");
		}
	}

	for (a = sdp->sdp_attributes; a; a = a->a_next) {
		if (switch_strlen_zero(a->a_name)) {
			continue;
		}

		if (!strcasecmp(a->a_name, "sendonly")) {
			if (!switch_test_flag(tech_pvt, TFLAG_SIP_HOLD)) {
				char *stream;
				
				switch_set_flag_locked(tech_pvt, TFLAG_SIP_HOLD);
				switch_channel_set_flag(channel, CF_HOLD);
				if (!(stream = switch_channel_get_variable(channel, SWITCH_HOLD_MUSIC_VARIABLE))) {
					stream = tech_pvt->profile->hold_music;
				}
				if (stream) {
					switch_ivr_broadcast(switch_core_session_get_uuid(tech_pvt->session), stream, SMF_ECHO_BLEG | SMF_LOOP);
				}
			}
		} else if (!strcasecmp(a->a_name, "sendrecv")) {
			if (switch_test_flag(tech_pvt, TFLAG_SIP_HOLD)) {
				switch_clear_flag_locked(tech_pvt, TFLAG_SIP_HOLD);
				switch_channel_clear_flag(channel, CF_HOLD);
				switch_channel_clear_flag_partner(channel, CF_BROADCAST);
				switch_channel_set_flag_partner(channel, CF_BREAK);
			}
		} else if (!strcasecmp(a->a_name, "ptime")) {
			dptime = atoi(a->a_value);
		}
	}

	for (m = sdp->sdp_media; m; m = m->m_next) {
		sdp_connection_t *connection;

		ptime = dptime;


		if (m->m_type == sdp_media_audio) {
			sdp_rtpmap_t *map;

			for (a = m->m_attributes; a; a = a->a_next) {
				if (!strcasecmp(a->a_name, "ptime") && a->a_value) {
					ptime = atoi(a->a_value);
				}
			}

			connection = sdp->sdp_connection;
			if (m->m_connections) {
				connection = m->m_connections;
			}

			if (!connection) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot find a c= line in the sdp at media or session level!\n");
				match = 0;
				break;
			}

			for (map = m->m_rtpmaps; map; map = map->rm_next) {
				int32_t i;
				const switch_codec_implementation_t *mimp = NULL, *near_match = NULL;
				const char *rm_encoding;


				if (!(rm_encoding = map->rm_encoding)) {
					rm_encoding = "";
				}

				if (!te && !strcasecmp(rm_encoding, "telephone-event")) {
					te = tech_pvt->te = (switch_payload_t) map->rm_pt;
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Set 2833 dtmf payload to %u\n", te);
					if (tech_pvt->rtp_session) {
						switch_rtp_set_telephony_event(tech_pvt->rtp_session, tech_pvt->te);
					}
				}

				if (!cng_pt && !strcasecmp(rm_encoding, "CN")) {
					cng_pt = tech_pvt->cng_pt = (switch_payload_t) map->rm_pt;
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Set comfort noise payload to %u\n", cng_pt);
					if (tech_pvt->rtp_session) {
						switch_rtp_set_cng_pt(tech_pvt->rtp_session, tech_pvt->cng_pt);
						switch_rtp_set_flag(tech_pvt->rtp_session, SWITCH_RTP_FLAG_AUTO_CNG);
					}
				}

				if (match) {
					if (te && cng_pt) {
						break;
					}
					continue;
				}

				for (i = 0; i < tech_pvt->num_codecs; i++) {
					const switch_codec_implementation_t *imp = tech_pvt->codecs[i];

					if (imp->codec_type != SWITCH_CODEC_TYPE_AUDIO) {
						continue;
					}
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Audio Codec Compare [%s:%d]/[%s:%d]\n",
									  rm_encoding, map->rm_pt, imp->iananame, imp->ianacode);
					if (map->rm_pt < 96) {
						match = (map->rm_pt == imp->ianacode) ? 1 : 0;
					} else {
						match = strcasecmp(rm_encoding, imp->iananame) ? 0 : 1;
					}
					
					if (match && (map->rm_rate == imp->samples_per_second)) {
						if (ptime && ptime * 1000 != imp->microseconds_per_frame) {
							near_match = imp;
							match = 0;
							continue;
						}
						mimp = imp;
						break;
					} else {
						match = 0;
					}
				}

				if (!match && near_match) {
					const switch_codec_implementation_t *search[1];
					char *prefs[1];
					char tmp[80];
					int num;

					snprintf(tmp, sizeof(tmp), "%s@%uk@%ui", near_match->iananame, near_match->samples_per_second, ptime);

					prefs[0] = tmp;
					num = switch_loadable_module_get_codecs_sorted(search, 1, prefs, 1);

					if (num) {
						mimp = search[0];
					} else {
						mimp = near_match;
					}

					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Substituting codec %s@%ums\n",
									  mimp->iananame, mimp->microseconds_per_frame / 1000);
					match = 1;
				}

				if (mimp) {
					if ((tech_pvt->rm_encoding = switch_core_session_strdup(session, (char *) rm_encoding))) {
						char tmp[50];
						tech_pvt->pt = (switch_payload_t) map->rm_pt;
						tech_pvt->rm_rate = map->rm_rate;
						tech_pvt->codec_ms = mimp->microseconds_per_frame / 1000;
						tech_pvt->remote_sdp_audio_ip = switch_core_session_strdup(session, (char *) connection->c_address);
						tech_pvt->rm_fmtp = switch_core_session_strdup(session, (char *) map->rm_fmtp);
						tech_pvt->remote_sdp_audio_port = (switch_port_t) m->m_port;
						tech_pvt->agreed_pt = (switch_payload_t) map->rm_pt;
						snprintf(tmp, sizeof(tmp), "%d", tech_pvt->remote_sdp_audio_port);
						switch_channel_set_variable(channel, SWITCH_REMOTE_MEDIA_IP_VARIABLE, tech_pvt->remote_sdp_audio_ip);
						switch_channel_set_variable(channel, SWITCH_REMOTE_MEDIA_PORT_VARIABLE, tmp);
					} else {
						match = 0;
					}
				}

				if (match) {
					if (sofia_glue_tech_set_codec(tech_pvt, 1) != SWITCH_STATUS_SUCCESS) {
						match = 0;
					}
				}
			}
		} else if (m->m_type == sdp_media_video) { 
			sdp_rtpmap_t *map;
			const char *rm_encoding;
			int framerate = 0;
			const switch_codec_implementation_t *mimp = NULL;
			int vmatch = 0, i;

			connection = sdp->sdp_connection;
			if (m->m_connections) {
				connection = m->m_connections;
			}

			if (!connection) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot find a c= line in the sdp at media or session level!\n");
				match = 0;
				break;
			}

			for (map = m->m_rtpmaps; map; map = map->rm_next) {

				for (a = m->m_attributes; a; a = a->a_next) {
					if (!strcasecmp(a->a_name, "framerate") && a->a_value) {
						framerate = atoi(a->a_value);
					}
				}
				if (!(rm_encoding = map->rm_encoding)) {
					rm_encoding = "";
				}

				for (i = 0; i < tech_pvt->num_codecs; i++) {
					const switch_codec_implementation_t *imp = tech_pvt->codecs[i];

					if (imp->codec_type != SWITCH_CODEC_TYPE_VIDEO) {
						continue;
					}

					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Video Codec Compare [%s:%d]/[%s:%d]\n",
									  rm_encoding, map->rm_pt, imp->iananame, imp->ianacode);
					if (map->rm_pt < 96) {
						vmatch = (map->rm_pt == imp->ianacode) ? 1 : 0;
					} else {
						vmatch = strcasecmp(rm_encoding, imp->iananame) ? 0 : 1;
					}
					

					if (vmatch && (map->rm_rate == imp->samples_per_second)) {
						mimp = imp;
						break;
					} else {
						vmatch = 0;
					}
				}
				
				if (mimp) {
					if ((tech_pvt->video_rm_encoding = switch_core_session_strdup(session, (char *) rm_encoding))) {
						char tmp[50];
						tech_pvt->video_pt = (switch_payload_t) map->rm_pt;
						tech_pvt->video_rm_rate = map->rm_rate;
						tech_pvt->video_codec_ms = mimp->microseconds_per_frame / 1000;
						tech_pvt->remote_sdp_video_ip = switch_core_session_strdup(session, (char *) connection->c_address);
						tech_pvt->video_rm_fmtp = switch_core_session_strdup(session, (char *) map->rm_fmtp);
						tech_pvt->remote_sdp_video_port = (switch_port_t) m->m_port;
						tech_pvt->video_agreed_pt = (switch_payload_t) map->rm_pt;
						snprintf(tmp, sizeof(tmp), "%d", tech_pvt->remote_sdp_video_port);
						switch_channel_set_variable(channel, SWITCH_REMOTE_VIDEO_IP_VARIABLE, tech_pvt->remote_sdp_audio_ip);
						switch_channel_set_variable(channel, SWITCH_REMOTE_VIDEO_PORT_VARIABLE, tmp);
					} else {
						vmatch = 0;
					}
				}
			}
		}
		
	}

	switch_set_flag_locked(tech_pvt, TFLAG_SDP);

	return match;
}

// map sip responses to QSIG cause codes ala RFC4497 section 8.4.4
switch_call_cause_t sofia_glue_sip_cause_to_freeswitch(int status)
{
	switch (status) {
	case 200:
		return SWITCH_CAUSE_NORMAL_CLEARING;
	case 401:
	case 402:
	case 403:
	case 407:
	case 603:
		return SWITCH_CAUSE_CALL_REJECTED;
	case 404:
	case 485:
	case 604:
		return SWITCH_CAUSE_NO_ROUTE_DESTINATION;
	case 408:
	case 504:
		return SWITCH_CAUSE_RECOVERY_ON_TIMER_EXPIRE;
	case 410:
		return SWITCH_CAUSE_NUMBER_CHANGED;
	case 413:
	case 414:
	case 416:
	case 420:
	case 421:
	case 423:
	case 505:
	case 513:
		return SWITCH_CAUSE_INTERWORKING;
	case 480:
		return SWITCH_CAUSE_NO_USER_RESPONSE;
	case 400:
	case 481:
	case 500:
	case 503:
		return SWITCH_CAUSE_NORMAL_TEMPORARY_FAILURE;
	case 486:
	case 600:
		return SWITCH_CAUSE_USER_BUSY;
	case 484:
		return SWITCH_CAUSE_INVALID_NUMBER_FORMAT;
	case 488:
	case 606:
		return SWITCH_CAUSE_INCOMPATIBLE_DESTINATION;
	case 502:
		return SWITCH_CAUSE_NETWORK_OUT_OF_ORDER;
	case 405:
		return SWITCH_CAUSE_SERVICE_UNAVAILABLE;
	case 406:
	case 415:
	case 501:
		return SWITCH_CAUSE_SERVICE_NOT_IMPLEMENTED;
	case 482:
	case 483:
		return SWITCH_CAUSE_EXCHANGE_ROUTING_ERROR;
	case 487:
		return SWITCH_CAUSE_ORIGINATOR_CANCEL;

	default:
		return SWITCH_CAUSE_NORMAL_UNSPECIFIED;

	}
}


void sofia_glue_pass_sdp(private_object_t *tech_pvt, char *sdp)
{
	char *val;
	switch_channel_t *channel;
	switch_core_session_t *other_session;
	switch_channel_t *other_channel;

	channel = switch_core_session_get_channel(tech_pvt->session);
	assert(channel != NULL);

	if ((val = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
		&& (other_session = switch_core_session_locate(val))) {
		other_channel = switch_core_session_get_channel(other_session);
		assert(other_channel != NULL);
		switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, sdp);

		if (!switch_test_flag(tech_pvt, TFLAG_CHANGE_MEDIA) && (switch_channel_test_flag(other_channel, CF_OUTBOUND) &&
																//switch_channel_test_flag(other_channel, CF_NOMEDIA) && 
																switch_channel_test_flag(channel, CF_OUTBOUND) &&
																switch_channel_test_flag(channel, CF_NOMEDIA))) {
			switch_ivr_nomedia(val, SMF_FORCE);
			switch_set_flag_locked(tech_pvt, TFLAG_CHANGE_MEDIA);
		}

		switch_core_session_rwunlock(other_session);
	}
}


char *sofia_glue_get_url_from_contact(char *buf, uint8_t to_dup)
{
	char *url = NULL, *e;

	if ((url = strchr(buf, '<')) && (e = strchr(url, '>'))) {
		url++;
		if (to_dup) {
			url = strdup(url);
			e = strchr(url, '>');
		}

		*e = '\0';
	}

	return url;
}


sofia_profile_t *sofia_glue_find_profile(char *key)
{
	sofia_profile_t *profile;

	switch_mutex_lock(mod_sofia_globals.hash_mutex);
	if ((profile = (sofia_profile_t *) switch_core_hash_find(mod_sofia_globals.profile_hash, key))) {
		if (!sofia_test_pflag(profile, PFLAG_RUNNING)) {
			profile = NULL;
		} else if (switch_thread_rwlock_tryrdlock(profile->rwlock) != SWITCH_STATUS_SUCCESS) {
			profile = NULL;
		}
	}

	switch_mutex_unlock(mod_sofia_globals.hash_mutex);

	return profile;
}

switch_status_t sofia_glue_add_profile(char *key, sofia_profile_t *profile)
{
	switch_status_t status = SWITCH_STATUS_FALSE;

	switch_mutex_lock(mod_sofia_globals.hash_mutex);
	if (!switch_core_hash_find(mod_sofia_globals.profile_hash, key)) {
		status = switch_core_hash_insert(mod_sofia_globals.profile_hash, key, profile);
	}
	switch_mutex_unlock(mod_sofia_globals.hash_mutex);

	return status;
}

void sofia_glue_del_profile(sofia_profile_t *profile)
{
	switch_hash_index_t *hi;
	void *vval;
	const void *vvar;
	sofia_profile_t *this_profile;
	sofia_gateway_t *gp, *this_gateway;


	switch_mutex_lock(mod_sofia_globals.hash_mutex);
	for (hi = switch_hash_first(switch_hash_pool_get(mod_sofia_globals.profile_hash), mod_sofia_globals.profile_hash); hi; hi = switch_hash_next(hi)) {
		switch_hash_this(hi, &vvar, NULL, &vval);
		this_profile = (sofia_profile_t *) vval;
		if (this_profile == profile) {
			switch_core_hash_delete(mod_sofia_globals.profile_hash, vvar);
		}
	}
	for (hi = switch_hash_first(switch_hash_pool_get(mod_sofia_globals.gateway_hash), mod_sofia_globals.gateway_hash); hi; hi = switch_hash_next(hi)) {
		switch_hash_this(hi, &vvar, NULL, &vval);
        this_gateway = (sofia_gateway_t *) vval;

		for (gp = profile->gateways; gp; gp = gp->next) {
			if (gp == this_gateway) {
				switch_core_hash_delete(mod_sofia_globals.gateway_hash, vvar);
			}
		}
	}
	switch_mutex_unlock(mod_sofia_globals.hash_mutex);

}

int sofia_glue_init_sql(sofia_profile_t *profile)
{

	
	char reg_sql[] =
		"CREATE TABLE sip_registrations (\n"
		"   user            VARCHAR(255),\n"
		"   host            VARCHAR(255),\n"
		"   contact         VARCHAR(1024),\n" 
		"   status          VARCHAR(255),\n" 
		"   rpid            VARCHAR(255),\n" 
		"   expires         INTEGER(8)" ");\n";


	char sub_sql[] =
		"CREATE TABLE sip_subscriptions (\n"
		"   proto           VARCHAR(255),\n"
		"   user            VARCHAR(255),\n"
		"   host            VARCHAR(255),\n"
		"   sub_to_user     VARCHAR(255),\n"
		"   sub_to_host     VARCHAR(255),\n"
		"   event           VARCHAR(255),\n"
		"   contact         VARCHAR(1024),\n"
		"   call_id         VARCHAR(255),\n" 
		"   full_from       VARCHAR(255),\n" 
		"   full_via        VARCHAR(255),\n" 
		"   expires         INTEGER(8)" ");\n";


	char auth_sql[] =
		"CREATE TABLE sip_authentication (\n"
		"   nonce           VARCHAR(255),\n" 
		"   expires         INTEGER(8)"
		");\n";
	
#ifdef SWITCH_HAVE_ODBC
	if (profile->odbc_dsn) {
		if (!(profile->master_odbc = switch_odbc_handle_new(profile->odbc_dsn, profile->odbc_user, profile->odbc_pass))) {
			return 0;
		}
		if (switch_odbc_handle_connect(profile->master_odbc) != SWITCH_ODBC_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Connecting ODBC DSN: %s\n", profile->odbc_dsn);
			return 0;
		}

		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Connected ODBC DSN: %s\n", profile->odbc_dsn);
			
		switch_odbc_handle_exec(profile->master_odbc, reg_sql, NULL);
		switch_odbc_handle_exec(profile->master_odbc, sub_sql, NULL);
		switch_odbc_handle_exec(profile->master_odbc, auth_sql, NULL);
	} else {
#endif
		if (!(profile->master_db = switch_core_db_open_file(profile->dbname))) {
			return 0;
		}

		switch_core_db_test_reactive(profile->master_db, "select contact from sip_registrations", reg_sql);
		switch_core_db_test_reactive(profile->master_db, "select contact from sip_subscriptions", sub_sql);
		switch_core_db_test_reactive(profile->master_db, "select * from sip_authentication", auth_sql);

#ifdef SWITCH_HAVE_ODBC
	}
#endif

	return 1;
}

void sofia_glue_sql_close(sofia_profile_t *profile)
{
#ifdef SWITCH_HAVE_ODBC
    if (profile->odbc_dsn) {
		switch_odbc_handle_destroy(&profile->master_odbc);
	} else {
#endif
		switch_core_db_close(profile->master_db);
		profile->master_db = NULL;
#ifdef SWITCH_HAVE_ODBC
	}
#endif
}


void sofia_glue_execute_sql(sofia_profile_t *profile, switch_bool_t master, char *sql, switch_mutex_t *mutex)
{
	switch_core_db_t *db;

	if (mutex) {
		switch_mutex_lock(mutex);
	}

#ifdef SWITCH_HAVE_ODBC
    if (profile->odbc_dsn) {
		SQLHSTMT stmt;
		if (switch_odbc_handle_exec(profile->master_odbc, sql, &stmt) != SWITCH_ODBC_SUCCESS) {
			char *err_str;
			err_str = switch_odbc_handle_get_error(profile->master_odbc, stmt);
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ERR: [%s]\n[%s]\n", sql, switch_str_nil(err_str));
			switch_safe_free(err_str);
		}
		SQLFreeHandle(SQL_HANDLE_STMT, stmt);
	} else {
#endif


	if (master) {
		db = profile->master_db;
	} else {
		if (!(db = switch_core_db_open_file(profile->dbname))) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Opening DB %s\n", profile->dbname);
			goto end;
		}
	}
	switch_core_db_persistant_execute(db, sql, 25);
	if (!master) {
		switch_core_db_close(db);
	}


#ifdef SWITCH_HAVE_ODBC
    }
#endif


  end:
	if (mutex) {
		switch_mutex_unlock(mutex);
	}
}


switch_bool_t sofia_glue_execute_sql_callback(sofia_profile_t *profile,
											  switch_bool_t master,
											  switch_mutex_t *mutex,
											  char *sql,
											  switch_core_db_callback_func_t callback,
											  void *pdata)
{
	switch_bool_t ret = SWITCH_FALSE;
	switch_core_db_t *db;
	char *errmsg = NULL;
	
	if (mutex) {
        switch_mutex_lock(mutex);
    }


#ifdef SWITCH_HAVE_ODBC
    if (profile->odbc_dsn) {
		switch_odbc_handle_callback_exec(profile->master_odbc, sql, callback, pdata);
	} else {
#endif


	if (master) {
		db = profile->master_db;
	} else {
		if (!(db = switch_core_db_open_file(profile->dbname))) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Opening DB %s\n", profile->dbname);
			goto end;
		}
	}
	
	switch_core_db_exec(db, sql, callback, pdata, &errmsg);

	if (errmsg) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "SQL ERR: [%s] %s\n", sql, errmsg);
		free(errmsg);
	}

	if (!master && db) {
		switch_core_db_close(db);
	}

#ifdef SWITCH_HAVE_ODBC
    }
#endif


 end:

	if (mutex) {
        switch_mutex_unlock(mutex);
    }
	


	return ret;

}

#ifdef SWITCH_HAVE_ODBC
static char *sofia_glue_execute_sql2str_odbc(sofia_profile_t *profile, switch_mutex_t *mutex, char *sql, char *resbuf, size_t len)
{
	char *ret = NULL;
	SQLHSTMT stmt;
	SQLCHAR name[1024];
	SQLINTEGER m = 0;

	if (switch_odbc_handle_exec(profile->master_odbc, sql, &stmt) == SWITCH_ODBC_SUCCESS) {
		SQLSMALLINT NameLength, DataType, DecimalDigits, Nullable;
		SQLUINTEGER ColumnSize;
		SQLRowCount(stmt, &m);

		if (m <= 0) {
			return NULL;
		}

		if (SQLFetch(stmt) != SQL_SUCCESS) {
			return NULL;
		}

		SQLDescribeCol(stmt, 1, name, sizeof(name), &NameLength, &DataType, &ColumnSize, &DecimalDigits, &Nullable);
		SQLGetData(stmt, 1, SQL_C_CHAR, (SQLCHAR *)resbuf, (SQLINTEGER)len, NULL);
		SQLFreeHandle(SQL_HANDLE_STMT, stmt);
		ret = resbuf;
	}

	return ret;
}

#endif

char *sofia_glue_execute_sql2str(sofia_profile_t *profile, switch_mutex_t *mutex, char *sql, char *resbuf, size_t len)
{
	switch_core_db_t *db;
	switch_core_db_stmt_t *stmt;
	char *ret = NULL;

#ifdef SWITCH_HAVE_ODBC
    if (profile->odbc_dsn) {
		return sofia_glue_execute_sql2str_odbc(profile, mutex, sql, resbuf, len);
	}
#endif

	if (mutex) {
		switch_mutex_lock(mutex);
	}

	if (!(db = switch_core_db_open_file(profile->dbname))) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Opening DB %s\n", profile->dbname);
		goto end;
	}

	if (switch_core_db_prepare(db, sql, -1, &stmt, 0)) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Statement Error!\n");
		goto fail;
	} else {
		int running = 1;
		int colcount;

		while (running < 5000) {
			int result = switch_core_db_step(stmt);

			if (result == SWITCH_CORE_DB_ROW) {
				if ((colcount = switch_core_db_column_count(stmt))) {
					switch_copy_string(resbuf, (char *) switch_core_db_column_text(stmt, 0), len);
					ret = resbuf;
				}
				break;
			} else if (result == SWITCH_CORE_DB_BUSY) {
				running++;
				switch_yield(1000);
				continue;
			}
			break;
		}

		switch_core_db_finalize(stmt);
	}


  fail:

	switch_core_db_close(db);

  end:
	if (mutex) {
		switch_mutex_unlock(mutex);
	}

	return ret;
}

int sofia_glue_get_user_host(char *in, char **user, char **host)
{
	char *p, *h, *u = in;

	*user = NULL;
	*host = NULL;

	if (!strncasecmp(u, "sip:", 4)) {
		u += 4;
	}

	if ((h = strchr(u, '@'))) {
		*h++ = '\0';
	} else {
		return 0;
	}

	p = h + strlen(h) - 1;

	if (p && (*p == ':' || *p == ';' || *p == ' ')) {
		*p = '\0';
	}

	*user = u;
	*host = h;

	return 1;

}