/* 
 * 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>
 * Marcel Barbulescu <marcelbarbulescu@gmail.com>
 * Norman Brandinger
 *
 *
 * sofia.c -- SOFIA SIP Endpoint (sofia code)
 *
 */
#include "mod_sofia.h"
#include "sofia-sip/msg_parser.h"
#include "sofia-sip/sip_extra.h"
#include "sofia-sip/tport_tag.h"

extern su_log_t tport_log[];
extern su_log_t iptsec_log[];
extern su_log_t nea_log[];
extern su_log_t nta_log[];
extern su_log_t nth_client_log[];
extern su_log_t nth_server_log[];
extern su_log_t nua_log[];
extern su_log_t soa_log[];
extern su_log_t sresolv_log[];
extern su_log_t stun_log[];

static void set_variable_sip_param(switch_channel_t *channel, char *header_type, sip_param_t const *params);

static void sofia_info_send_sipfrag(switch_core_session_t *aleg, switch_core_session_t *bleg);

static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
									 char const *phrase,
									 nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[]);

static void sofia_handle_sip_r_invite(switch_core_session_t *session, int status,
									 char const *phrase,
									 nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[]);
static void sofia_handle_sip_r_options(switch_core_session_t *session, int status,
									 char const *phrase,
									  nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[]);

void sofia_handle_sip_r_notify(switch_core_session_t *session, int status,
							   char const *phrase,
							   nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[])
{
	if (status >= 300 && sip && sip->sip_call_id) {
		char *sql;
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "delete subscriptions for failed notify\n");
		sql = switch_mprintf("delete from sip_subscriptions where call_id='%q'", sip->sip_call_id->i_id);
		switch_assert(sql != NULL);
		sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
	}
}

void sofia_handle_sip_i_notify(switch_core_session_t *session, int status,
							  char const *phrase,
							  nua_t *nua,
							  sofia_profile_t *profile,
							  nua_handle_t *nh,
							  sofia_private_t *sofia_private,
							  sip_t const *sip,
							  tagi_t tags[])
{
	switch_channel_t *channel = NULL;
	
	/* make sure we have a proper event */
	if (!sip || !sip->sip_event) {
		goto error;
	}

	/* Automatically return a 200 OK for Event: keep-alive */
	if (!strcasecmp(sip->sip_event->o_type, "keep-alive")) {
		nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
		return;
	}

	/* make sure we have a proper "talk" event */
	if (!session || strcasecmp(sip->sip_event->o_type, "talk")) {
		goto error;
	}

	channel = switch_core_session_get_channel(session);
	switch_assert(channel != NULL);
	if (!switch_channel_test_flag(channel, CF_OUTBOUND)) {
		switch_channel_answer(channel);
		switch_channel_set_variable(channel, "auto_answer_destination", switch_channel_get_variable(channel, "destination_number"));
		switch_ivr_session_transfer(session, "auto_answer", NULL , NULL);
		nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
		return;
	}

error:
	nua_respond(nh, 481, "Subscription Does Not Exist", NUTAG_WITH_THIS(nua), TAG_END());
	return;
}

void sofia_handle_sip_i_bye(switch_core_session_t *session, int status,
							  char const *phrase,
							  nua_t *nua,
							  sofia_profile_t *profile,
							  nua_handle_t *nh,
							  sofia_private_t *sofia_private,
							  sip_t const *sip,
							  tagi_t tags[])
{
	const char *tmp;
	switch_channel_t *channel;

	if (!session) return;

	channel = switch_core_session_get_channel(session); 


    if (sip->sip_reason && sip->sip_reason->re_protocol && 
        (!strcasecmp(sip->sip_reason->re_protocol, "Q.850") || !strcasecmp(sip->sip_reason->re_protocol, "FreeSWITCH")) &&
        sip->sip_reason->re_cause) {
        private_object_t *tech_pvt = switch_core_session_get_private(session);
        tech_pvt->q850_cause = atoi(sip->sip_reason->re_cause);
    }

	if (sip->sip_user_agent && !switch_strlen_zero(sip->sip_user_agent->g_string)){
		switch_channel_set_variable(channel, "sip_user_agent", sip->sip_user_agent->g_string);
	}
	if ((tmp = sofia_glue_get_unknown_header(sip, "rtp-txstat"))) {
		switch_channel_set_variable(channel, "sip_rtp_txstat", tmp);
	}
	if ((tmp = sofia_glue_get_unknown_header(sip, "rtp-rxstat"))) {
		switch_channel_set_variable(channel, "sip_rtp_rxstat", tmp);
	}
	return;
}

void sofia_handle_sip_r_message(int status, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip)
{
}

void sofia_event_callback(nua_event_t event,
						  int status,
						  char const *phrase,
						  nua_t *nua,
						  sofia_profile_t *profile,
						  nua_handle_t *nh,
						  sofia_private_t *sofia_private,
						  sip_t const *sip,
						  tagi_t tags[])
{
	struct private_object *tech_pvt = NULL;
	auth_res_t auth_res = AUTH_FORBIDDEN;
	switch_core_session_t *session = NULL;
	switch_channel_t *channel = NULL;
	sofia_gateway_t *gateway = NULL;

	if (sofia_private && sofia_private != &mod_sofia_globals.destroy_private && sofia_private != &mod_sofia_globals.keep_private) {
		if ((gateway = sofia_private->gateway)) {
			if (switch_thread_rwlock_tryrdlock(gateway->profile->rwlock) != SWITCH_STATUS_SUCCESS) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Profile %s is locked\n", gateway->profile->name);
				return;
			}
		} else if (!switch_strlen_zero(sofia_private->uuid)) {
			if ((session = switch_core_session_locate(sofia_private->uuid))) {
				tech_pvt = switch_core_session_get_private(session);
				channel = switch_core_session_get_channel(tech_pvt->session);
				if (!tech_pvt->call_id && sip && sip->sip_call_id && sip->sip_call_id->i_id) {
					tech_pvt->call_id = switch_core_session_strdup(session, sip->sip_call_id->i_id);
					switch_channel_set_variable(channel, "sip_call_id", tech_pvt->call_id);
				}
				if (tech_pvt->gateway_name) {
					gateway = sofia_reg_find_gateway(tech_pvt->gateway_name);
				}
			} else {
				/* too late */
				return;
			}
		}
	}
	
	if (status != 100 && status != 200) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "event [%s] status [%d][%s] session: %s\n",
						  nua_event_name(event), status, phrase, session ? switch_channel_get_name(channel) : "n/a");
	}

	if (session) {
		switch_core_session_signal_lock(session);

		if (channel && switch_channel_get_state(channel) >= CS_HANGUP) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Channel is already hungup.\n");
			goto done;
		}
	}

	if ((profile->pflags & PFLAG_AUTH_ALL) && tech_pvt && tech_pvt->key && sip) {
		sip_authorization_t const *authorization = NULL;
		
		if (sip->sip_authorization) {
			authorization = sip->sip_authorization;
		} else if (sip->sip_proxy_authorization) {
			authorization = sip->sip_proxy_authorization;
		}

		if (authorization) {
			char network_ip[80];
			get_addr(network_ip, sizeof(network_ip), &((struct sockaddr_in *) msg_addrinfo(nua_current_request(nua))->ai_addr)->sin_addr);
			auth_res = sofia_reg_parse_auth(profile, authorization, sip, 
											(char *) sip->sip_request->rq_method_name, tech_pvt->key, strlen(tech_pvt->key), network_ip, NULL, 0, REG_INVITE, NULL);
		}

		if (auth_res != AUTH_OK) {
			switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
			nua_respond(nh, SIP_401_UNAUTHORIZED, TAG_END());
			goto done;
		}

		if (channel) {
			switch_channel_set_variable(channel, "sip_authorized", "true");
		}
	}

	if (sip && (status == 401 || status == 407)) {
		sofia_reg_handle_sip_r_challenge(status, phrase, nua, profile, nh, session, gateway, sip, tags);
		goto done;
	}

	switch (event) {
	case nua_r_shutdown:
		if (status >= 200) {
			su_root_break(profile->s_root);
		}
		break;

	case nua_r_message:
		sofia_handle_sip_r_message(status, profile, nh, sip);
		break;
	case nua_r_invite:
		sofia_handle_sip_r_invite(session, status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_r_options:
		sofia_handle_sip_r_options(session, status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_r_get_params:
	case nua_r_unregister:
	case nua_i_fork:
	case nua_r_info:
	case nua_r_bye:
		break;
	case nua_i_bye:
		sofia_handle_sip_i_bye(session, status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_r_unsubscribe:
	case nua_r_publish:
	case nua_i_cancel:
	case nua_i_error:
	case nua_i_active:
	case nua_i_ack:
	case nua_i_terminated:
	case nua_r_set_params:
		break;
	case nua_r_notify:
		sofia_handle_sip_r_notify(session, status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_notify:
		sofia_handle_sip_i_notify(session, status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_r_register:
		sofia_reg_handle_sip_r_register(status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_options:
		sofia_handle_sip_i_options(status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_invite:
		if (!session) {
			sofia_handle_sip_i_invite(nua, profile, nh, sofia_private, sip, tags);
		}
		break;
	case nua_i_publish:
		sofia_presence_handle_sip_i_publish(nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_register:
		sofia_reg_handle_sip_i_register(nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_prack:
		break;
	case nua_i_state:
		sofia_handle_sip_i_state(session, status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_message:
		sofia_presence_handle_sip_i_message(status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_info:
		sofia_handle_sip_i_info(nua, profile, nh, session, sip, tags);
		break;
	case nua_r_refer:
		break;
	case nua_i_refer:
		if (session) {
			sofia_handle_sip_i_refer(nua, profile, nh, session, sip, tags);
		}
		break;
	case nua_r_subscribe:
		sofia_presence_handle_sip_r_subscribe(status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	case nua_i_subscribe:
		sofia_presence_handle_sip_i_subscribe(status, phrase, nua, profile, nh, sofia_private, sip, tags);
		break;
	default:
		if (status > 100) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s: unknown event %d: %03d %s\n", nua_event_name(event), event, status, phrase);
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s: unknown event %d\n", nua_event_name(event), event);
		}
		break;
	}

  done:

	switch (event) {
	case nua_i_subscribe:
		break;
	default:
		if (nh && ((sofia_private && sofia_private->destroy_nh) || !nua_handle_magic(nh))) {
			//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Destroy handle [%s]\n", nua_event_name(event));
			if (sofia_private) {
				nua_handle_bind(nh, NULL);
			}
			nua_handle_destroy(nh);
			nh = NULL;
		}
		break;
	}

	if (sofia_private && sofia_private->destroy_me) {
		if (nh) {
			nua_handle_bind(nh, NULL);
		}
		sofia_private->destroy_me = 12;
		free(sofia_private);
		sofia_private = NULL;
	}

	if (gateway) {
		sofia_reg_release_gateway(gateway);
	}

	if (session) {
		switch_core_session_signal_unlock(session);
		switch_core_session_rwunlock(session);
	}
}

void event_handler(switch_event_t *event)
{
	char *subclass, *sql;

	if ((subclass = switch_event_get_header(event, "orig-event-subclass")) && !strcasecmp(subclass, MY_EVENT_REGISTER)) {
		char *from_user = switch_event_get_header(event, "orig-from-user");
		char *from_host = switch_event_get_header(event, "orig-from-host");
		char *contact_str = switch_event_get_header(event, "orig-contact");
		char *exp_str = switch_event_get_header(event, "orig-expires");
		char *rpid = switch_event_get_header(event, "orig-rpid");
		char *call_id = switch_event_get_header(event, "orig-call-id");
		char *user_agent = switch_event_get_header(event, "user-agent");
		long expires = (long) switch_timestamp(NULL);
		char *profile_name = switch_event_get_header(event, "orig-profile-name");
		sofia_profile_t *profile = NULL;

		if (exp_str) {
			expires += atol(exp_str);
		}

		if (!rpid) {
			rpid = "unknown";
		}

		if (!profile_name || !(profile = sofia_glue_find_profile(profile_name))) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid Profile\n");
			return;
		}
		if (sofia_test_pflag(profile, PFLAG_MULTIREG)) {
			sql = switch_mprintf("delete from sip_registrations where call_id='%q'", call_id);
		} else {
			sql = switch_mprintf("delete from sip_registrations where sip_user='%q' and sip_host='%q'", from_user, from_host);
		}

		switch_mutex_lock(profile->ireg_mutex);
		sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
		
		sql = switch_mprintf("insert into sip_registrations values ('%q', '%q','%q','%q','Registered', '%q', %ld, '%q')",
							  call_id, from_user, from_host, contact_str, rpid, expires, user_agent);

		if (sql) {
			sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Propagating registration for %s@%s->%s\n", from_user, from_host, contact_str);
		}
		switch_mutex_unlock(profile->ireg_mutex);


		if (profile) {
			sofia_glue_release_profile(profile);
		}
	}
}

void *SWITCH_THREAD_FUNC sofia_profile_worker_thread_run(switch_thread_t *thread, void *obj)
{
	sofia_profile_t *profile = (sofia_profile_t *) obj;
	uint32_t ireg_loops = 0;
	uint32_t gateway_loops = 0;
	int loops = 0;
	uint32_t qsize;

	ireg_loops = IREG_SECONDS;
	gateway_loops = GATEWAY_SECONDS;

	sofia_set_pflag_locked(profile, PFLAG_WORKER_RUNNING);
	
	switch_queue_create(&profile->sql_queue, 500000, profile->pool);
	
	qsize = switch_queue_size(profile->sql_queue);

	while ((mod_sofia_globals.running == 1 && sofia_test_pflag(profile, PFLAG_RUNNING)) || qsize) {
		if (qsize) {
			void *pop;
			switch_mutex_lock(profile->ireg_mutex);
			while (switch_queue_trypop(profile->sql_queue, &pop) == SWITCH_STATUS_SUCCESS && pop) {
				sofia_glue_actually_execute_sql(profile, SWITCH_TRUE, (char *) pop, NULL);
				free(pop);
			}
			switch_mutex_unlock(profile->ireg_mutex);
		}

		if (++loops >= 100) {
			if (++ireg_loops >= IREG_SECONDS) {
				sofia_reg_check_expire(profile, switch_timestamp(NULL));
				ireg_loops = 0;
			}

			if (++gateway_loops >= GATEWAY_SECONDS) {
				sofia_reg_check_gateway(profile, switch_timestamp(NULL));
				gateway_loops = 0;
			}
			loops = 0;
		}

		switch_yield(10000);
		qsize = switch_queue_size(profile->sql_queue);
	}
	
	sofia_clear_pflag_locked(profile, PFLAG_WORKER_RUNNING);
	
	return NULL;
}


void launch_sofia_worker_thread(sofia_profile_t *profile)
{
	switch_thread_t *thread;
	switch_threadattr_t *thd_attr = NULL;
	int x = 0;

	switch_threadattr_create(&thd_attr, profile->pool);
	switch_threadattr_detach_set(thd_attr, 1);
	switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
	switch_threadattr_priority_increase(thd_attr);
	switch_thread_create(&thread, thd_attr, sofia_profile_worker_thread_run, profile, profile->pool);

	while(!sofia_test_pflag(profile, PFLAG_WORKER_RUNNING)) {
		switch_yield(100000);
		if (++x >= 100) {
			break;
		}
	}
}

void *SWITCH_THREAD_FUNC sofia_profile_thread_run(switch_thread_t *thread, void *obj)
{
	sofia_profile_t *profile = (sofia_profile_t *) obj;
	switch_memory_pool_t *pool;
	sip_alias_node_t *node;
	switch_event_t *s_event;
	int tportlog = 0;
	int use_100rel = !sofia_test_pflag(profile, PFLAG_DISABLE_100REL);
	int use_timer = !sofia_test_pflag(profile, PFLAG_DISABLE_TIMER);
	const char *supported = NULL;

	switch_mutex_lock(mod_sofia_globals.mutex);
	mod_sofia_globals.threads++;
	switch_mutex_unlock(mod_sofia_globals.mutex);

	profile->s_root = su_root_create(NULL);
	profile->home = su_home_new(sizeof(*profile->home));

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Creating agent for %s\n", profile->name);

	if (!sofia_glue_init_sql(profile)) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Cannot Open SQL Database [%s]!\n", profile->name);
		sofia_glue_del_profile(profile);
		goto end;
	}

	if (switch_test_flag(profile, TFLAG_TPORT_LOG)) {
		tportlog = 1;
	}

	if (use_100rel && use_timer) {
		supported = "100rel, precondition, timer";
	} else if (use_100rel) {
		supported = "100rel, precondition";
	} else if (use_timer) {
		supported = "timer, precondition";
	} else {
		supported = "precondition";
	}

	profile->nua = nua_create(profile->s_root,	/* Event loop */
							sofia_event_callback,	/* Callback for processing events */
							profile,	/* Additional data to pass to callback */
							NUTAG_URL(profile->bindurl),
							TAG_IF(sofia_test_pflag(profile, PFLAG_TLS), NUTAG_SIPS_URL(profile->tls_bindurl)),
							TAG_IF(sofia_test_pflag(profile, PFLAG_TLS), NUTAG_CERTIFICATE_DIR(profile->tls_cert_dir)),
							TAG_IF(sofia_test_pflag(profile, PFLAG_TLS), TPTAG_TLS_VERSION(profile->tls_version)),
							NTATAG_UDP_MTU(65536),
							TAG_IF(tportlog, TPTAG_LOG(1)),
							TAG_END());	/* Last tag should always finish the sequence */

	if (!profile->nua) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Creating SIP UA for profile: %s\n", profile->name);
		sofia_glue_del_profile(profile);
		goto end;
	}

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Created agent for %s\n", profile->name);

	nua_set_params(profile->nua,
				   NUTAG_APPL_METHOD("OPTIONS"),
				   NUTAG_APPL_METHOD("NOTIFY"),
				   NUTAG_APPL_METHOD("INFO"),
				   NUTAG_AUTOANSWER(0),
				   NUTAG_AUTOALERT(0),
				   TAG_IF((profile->mflags & MFLAG_REGISTER), NUTAG_ALLOW("REGISTER")),
				   TAG_IF((profile->mflags & MFLAG_REFER), NUTAG_ALLOW("REFER")),
				   NUTAG_ALLOW("INFO"),
				   NUTAG_ALLOW("NOTIFY"),
				   NUTAG_ALLOW_EVENTS("talk"),
				   NUTAG_SESSION_TIMER(profile->session_timeout),
				   NTATAG_MAX_PROCEEDING(profile->max_proceeding),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW("PUBLISH")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW("SUBSCRIBE")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ENABLEMESSAGE(1)),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("presence")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("dialog")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("call-info")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("sla")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("include-session-description")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("presence.winfo")),
				   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW_EVENTS("message-summary")),
				   SIPTAG_SUPPORTED_STR(supported), SIPTAG_USER_AGENT_STR(profile->user_agent), TAG_END());

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Set params for %s\n", profile->name);

	for (node = profile->aliases; node; node = node->next) {
		node->nua = nua_create(profile->s_root,	/* Event loop */
								sofia_event_callback,	/* Callback for processing events */
								profile,	/* Additional data to pass to callback */
								NUTAG_URL(node->url), TAG_END());	/* Last tag should always finish the sequence */

		nua_set_params(node->nua,
					   NUTAG_APPL_METHOD("OPTIONS"),
					   NUTAG_EARLY_MEDIA(1),
					   NUTAG_AUTOANSWER(0),
					   NUTAG_AUTOALERT(0),
					   TAG_IF((profile->mflags & MFLAG_REGISTER), NUTAG_ALLOW("REGISTER")),
					   TAG_IF((profile->mflags & MFLAG_REFER), NUTAG_ALLOW("REFER")),
					   NUTAG_ALLOW("INFO"),
					   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ALLOW("PUBLISH")),
					   TAG_IF((profile->pflags & PFLAG_PRESENCE), NUTAG_ENABLEMESSAGE(1)),
					   SIPTAG_SUPPORTED_STR(supported), 
					   SIPTAG_USER_AGENT_STR(profile->user_agent), TAG_END());
	}

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "activated db for %s\n", profile->name);

	switch_mutex_init(&profile->ireg_mutex, SWITCH_MUTEX_NESTED, profile->pool);
	switch_mutex_init(&profile->gateway_mutex, SWITCH_MUTEX_NESTED, profile->pool);

	if (switch_event_create(&s_event, SWITCH_EVENT_PUBLISH) == SWITCH_STATUS_SUCCESS) {
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "service", "_sip._udp,_sip._tcp,_sip._sctp%s",
								(sofia_test_pflag(profile, PFLAG_TLS)) ? ",_sips._tcp" : "");

		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "port", "%d", profile->sip_port);
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "module_name", "%s", "mod_sofia");
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "profile_name", "%s", profile->name);
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "profile_uri", "%s", profile->url);

		if (sofia_test_pflag(profile, PFLAG_TLS)) {
			switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "tls_port", "%d", profile->tls_sip_port);
			switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "profile_tls_uri", "%s", profile->tls_url);
		}
		switch_event_fire(&s_event);
	}

	sofia_glue_add_profile(profile->name, profile);

	if (profile->pflags & PFLAG_PRESENCE) {
		sofia_presence_establish_presence(profile);
	}

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Starting thread for %s\n", profile->name);

	profile->started = switch_timestamp(NULL);

	sofia_set_pflag_locked(profile, PFLAG_RUNNING);
	launch_sofia_worker_thread(profile);

	switch_yield(1000000);

	while (mod_sofia_globals.running == 1 && sofia_test_pflag(profile, PFLAG_RUNNING) && sofia_test_pflag(profile, PFLAG_WORKER_RUNNING)) {
		su_root_step(profile->s_root, 1000);
	}

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Write lock %s\n", profile->name);
	switch_thread_rwlock_wrlock(profile->rwlock);
	sofia_reg_unregister(profile);
	nua_shutdown(profile->nua);
	su_root_run(profile->s_root);

	sofia_clear_pflag_locked(profile, PFLAG_RUNNING);
	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "waiting for worker thread\n");

	while(sofia_test_pflag(profile, PFLAG_WORKER_RUNNING)) {
		switch_yield(100000);
	}

	while(profile->inuse) {
		switch_yield(100000);
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "waiting for %d session(s)\n", profile->inuse);
	}
	nua_destroy(profile->nua);

	switch_mutex_lock(profile->ireg_mutex);
	switch_mutex_unlock(profile->ireg_mutex);

	switch_mutex_lock(profile->flag_mutex);
	switch_mutex_unlock(profile->flag_mutex);

	if (switch_event_create(&s_event, SWITCH_EVENT_UNPUBLISH) == SWITCH_STATUS_SUCCESS) {
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "service", "_sip._udp,_sip._tcp,_sip._sctp%s",
							(sofia_test_pflag(profile, PFLAG_TLS)) ? ",_sips._tcp" : "");

		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "port", "%d", profile->sip_port);
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "module_name", "%s", "mod_sofia");
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "profile_name", "%s", profile->name);
		switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "profile_uri", "%s", profile->url);

		if (sofia_test_pflag(profile, PFLAG_TLS)) {
			switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "tls_port", "%d", profile->tls_sip_port);
			switch_event_add_header(s_event, SWITCH_STACK_BOTTOM, "profile_tls_uri", "%s", profile->tls_url);
		}
		switch_event_fire(&s_event);
	}

	sofia_glue_sql_close(profile);
	su_home_unref(profile->home);
	su_root_destroy(profile->s_root);
	pool = profile->pool;

	sofia_glue_del_profile(profile);
	switch_core_hash_destroy(&profile->chat_hash);

	switch_thread_rwlock_unlock(profile->rwlock);
	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Write unlock %s\n", profile->name);

	if (sofia_test_pflag(profile, PFLAG_RESPAWN)) {
		config_sofia(1, profile->name);
	}

	switch_core_destroy_memory_pool(&pool);

  end:
	switch_mutex_lock(mod_sofia_globals.mutex);
	mod_sofia_globals.threads--;
	switch_mutex_unlock(mod_sofia_globals.mutex);

	return NULL;
}

void launch_sofia_profile_thread(sofia_profile_t *profile)
{
	switch_thread_t *thread;
	switch_threadattr_t *thd_attr = NULL;

	switch_threadattr_create(&thd_attr, profile->pool);
	switch_threadattr_detach_set(thd_attr, 1);
	switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
	switch_threadattr_priority_increase(thd_attr);
	switch_thread_create(&thread, thd_attr, sofia_profile_thread_run, profile, profile->pool);
}



static void logger(void *logarg, char const *fmt, va_list ap)
{
	char *data = NULL;

	if (fmt) {
#ifdef HAVE_VASPRINTF
		int ret;
		ret = vasprintf(&data, fmt, ap);
		if ((ret == -1) || !data) {
			return;
		}
#else
		data = (char *) malloc(2048);
		if (data) {
			vsnprintf(data, 2048, fmt, ap);
		} else {
			return;
		}
#endif
	}
	if (data) {
		switch_log_printf(SWITCH_CHANNEL_LOG_CLEAN, SWITCH_LOG_CONSOLE, (char *) "%s", data);
		free(data);
	}
}

static void parse_gateways(sofia_profile_t *profile, switch_xml_t gateways_tag)
{
	switch_xml_t gateway_tag, param;
	sofia_gateway_t *gp;

	for (gateway_tag = switch_xml_child(gateways_tag, "gateway"); gateway_tag; gateway_tag = gateway_tag->next) {
		char *name = (char *) switch_xml_attr_soft(gateway_tag, "name");
		sofia_gateway_t *gateway;

		if (switch_strlen_zero(name)) {
			name = "anonymous";
		}

		switch_mutex_lock(mod_sofia_globals.hash_mutex);
		if ((gp = switch_core_hash_find(mod_sofia_globals.gateway_hash, name))) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Ignoring duplicate gateway '%s'\n", name);
			switch_mutex_unlock(mod_sofia_globals.hash_mutex);
			goto skip;
		}
		switch_mutex_unlock(mod_sofia_globals.hash_mutex);

		if ((gateway = switch_core_alloc(profile->pool, sizeof(*gateway)))) {
			char *register_str = "true", *scheme = "Digest",
				*realm = NULL,
				*username = NULL,
				*password = NULL,
				*caller_id_in_from = "false",
				*extension = NULL,
				*proxy = NULL,
				*context = "default",
				*expire_seconds = "3600",
				*retry_seconds = "30",
				*from_user = "",
				*from_domain = "",
				*register_proxy = NULL,
				*contact_params = NULL,
				*params = NULL,
				*register_transport = NULL;

			uint32_t ping_freq = 0;

			gateway->register_transport = SOFIA_TRANSPORT_UDP;
			gateway->pool = profile->pool;
			gateway->profile = profile;
			gateway->name = switch_core_strdup(gateway->pool, name);
			gateway->freq = 0;
			gateway->next = NULL;
			gateway->ping = 0;
			gateway->ping_freq = 0;

			for (param = switch_xml_child(gateway_tag, "param"); param; param = param->next) {
				char *var = (char *) switch_xml_attr_soft(param, "name");
				char *val = (char *) switch_xml_attr_soft(param, "value");

				if (!strcmp(var, "register")) {
					register_str = val;
				} else if (!strcmp(var, "scheme")) {
					scheme = val;
				} else if (!strcmp(var, "realm")) {
					realm = val;
				} else if (!strcmp(var, "username")) {
					username = val;
				} else if (!strcmp(var, "password")) {
					password = val;
				} else if (!strcmp(var, "caller-id-in-from")) {
					caller_id_in_from = val;
				} else if (!strcmp(var, "extension")) {
					extension = val;
				} else if (!strcmp(var, "ping")) {
					ping_freq = atoi(val);
				} else if (!strcmp(var, "proxy")) {
					proxy = val;
				} else if (!strcmp(var, "context")) {
					context = val;
				} else if (!strcmp(var, "expire-seconds")) {
					expire_seconds = val;
				} else if (!strcmp(var, "retry-seconds")) {
					retry_seconds = val;
				} else if (!strcmp(var, "from-user")) {
					from_user = val;
				} else if (!strcmp(var, "from-domain")) {
					from_domain = val;
				} else if (!strcmp(var, "register-proxy")) {
					register_proxy = val;
				} else if (!strcmp(var, "contact-params")) {
					contact_params = val;
				} else if (!strcmp(var, "register-transport")) {
					sofia_transport_t transport = sofia_glue_str2transport(val);

					if (transport == SOFIA_TRANSPORT_UNKNOWN || (!sofia_test_pflag(profile, PFLAG_TLS) && sofia_glue_transport_has_tls(transport))) {
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ERROR: unsupported transport\n");
						goto skip;
					}

					gateway->register_transport = transport;
				}
			}

			if (ping_freq) {
				if (ping_freq >= 5) {
					gateway->ping_freq = ping_freq;
					gateway->ping = switch_timestamp(NULL) + ping_freq;
				} else {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ERROR: invalid ping!\n");
				}
			}

			if (switch_strlen_zero(realm)) {
				realm = name;
			}

			if (switch_strlen_zero(username)) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ERROR: username param is REQUIRED!\n");
				goto skip;
			}

			if (switch_strlen_zero(password)) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ERROR: password param is REQUIRED!\n");
				goto skip;
			}

			if (switch_strlen_zero(from_user)) {
				from_user = username;
			}

			if (switch_strlen_zero(extension)) {
				extension = username;
			}

			if (switch_strlen_zero(proxy)) {
				proxy = realm;
			}

			if (!switch_true(register_str)) {
				gateway->state = REG_STATE_NOREG;
			}

			if (switch_strlen_zero(from_domain)) {
				from_domain = realm;
			}

			if (switch_strlen_zero(register_proxy)) {
				register_proxy = proxy;
			}

			gateway->retry_seconds = atoi(retry_seconds);
			if (gateway->retry_seconds < 10) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "INVALID: retry_seconds correcting the value to 30\n");
				gateway->retry_seconds = 30;
			}
			gateway->register_scheme = switch_core_strdup(gateway->pool, scheme);
			gateway->register_context = switch_core_strdup(gateway->pool, context);
			gateway->register_realm = switch_core_strdup(gateway->pool, realm);
			gateway->register_username = switch_core_strdup(gateway->pool, username);
			gateway->register_password = switch_core_strdup(gateway->pool, password);
			if (switch_true(caller_id_in_from)) {
				switch_set_flag(gateway, REG_FLAG_CALLERID);
			}
			register_transport = (char *)sofia_glue_transport2str(gateway->register_transport);
			if (contact_params) {
				if (*contact_params == ';') {
					params = switch_core_sprintf(gateway->pool, "%s&transport=%s", contact_params, register_transport);
				} else {
					params = switch_core_sprintf(gateway->pool, ";%s&transport=%s", contact_params, register_transport);
				}
			} else {
				params = switch_core_sprintf(gateway->pool, ";transport=%s", register_transport);
			}

			gateway->register_url = switch_core_sprintf(gateway->pool, "sip:%s;transport=%s", register_proxy, register_transport);
			gateway->register_from = switch_core_sprintf(gateway->pool, "<sip:%s@%s;transport=%s>", from_user, from_domain, register_transport);
			gateway->register_contact = switch_core_sprintf(gateway->pool, "<sip:%s@%s:%d%s>", extension,
												 profile->extsipip ? profile->extsipip : profile->sipip,
												 sofia_glue_transport_has_tls(gateway->register_transport) ? profile->tls_sip_port : profile->sip_port, params);

			if (!strncasecmp(proxy, "sip:", 4)) {
				gateway->register_proxy = switch_core_strdup(gateway->pool, proxy);
				gateway->register_to = switch_core_sprintf(gateway->pool, "sip:%s@%s", username, proxy + 4);
			} else {
				gateway->register_proxy = switch_core_sprintf(gateway->pool, "sip:%s", proxy);
				gateway->register_to = switch_core_sprintf(gateway->pool, "sip:%s@%s", username, proxy);
			}

			gateway->expires_str = switch_core_strdup(gateway->pool, expire_seconds);

			if ((gateway->freq = atoi(gateway->expires_str)) < 5) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING,
								   "Invalid Freq: %d.  Setting Register-Frequency to 3600\n", gateway->freq);
				gateway->freq = 3600;
			}
			gateway->freq -= 2;

			gateway->next = profile->gateways;
			profile->gateways = gateway;
			sofia_reg_add_gateway(gateway->name, gateway);
		}

	skip:
		switch_assert(gateway_tag);
	}
}


static void parse_domain_tag(sofia_profile_t *profile, switch_xml_t x_domain_tag, const char *dname, const char *parse, const char *alias)
{

	if (switch_true(alias)) {
		if (sofia_glue_add_profile(switch_core_strdup(profile->pool, dname), profile) == SWITCH_STATUS_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Adding Alias [%s] for profile [%s]\n", dname, profile->name);
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Adding Alias [%s] for profile [%s] (name in use)\n", 
							  dname, profile->name);
		}
	}
	
	if (switch_true(parse)) {
		switch_xml_t ut, gateways_tag;
		for (ut = switch_xml_child(x_domain_tag, "user"); ut; ut = ut->next) {
			if (((gateways_tag = switch_xml_child(ut, "gateways")))) {
				parse_gateways(profile, gateways_tag);
			}
		}
	}
}


switch_status_t config_sofia(int reload, char *profile_name)
{
	char *cf = "sofia.conf";
	switch_xml_t cfg, xml = NULL, xprofile, param, settings, profiles, gateways_tag, domain_tag, domains_tag;
	switch_status_t status = SWITCH_STATUS_SUCCESS;
	sofia_profile_t *profile = NULL;
	char url[512] = "";
	int profile_found = 0;
	switch_event_t *params = NULL;;
	
	if (!reload) {
		su_init();
		if (sip_update_default_mclass(sip_extend_mclass(NULL)) < 0) {
			su_deinit();
			return SWITCH_STATUS_FALSE;
		}

		su_log_redirect(NULL, logger, NULL);
		su_log_redirect(tport_log, logger, NULL);
	}

	if (!switch_strlen_zero(profile_name) && (profile = sofia_glue_find_profile(profile_name))) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Profile [%s] Already exists.\n", switch_str_nil(profile_name));
		status = SWITCH_STATUS_FALSE;
		sofia_glue_release_profile(profile);
		return status;
	}

	switch_event_create(&params, SWITCH_EVENT_MESSAGE);
	switch_assert(params);
	switch_event_add_header_string(params, SWITCH_STACK_BOTTOM, "profile", profile_name);
	
	if (!(xml = switch_xml_open_cfg(cf, &cfg, params))) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "open of %s failed\n", cf);
		status = SWITCH_STATUS_FALSE;
		goto done;
	}

	if ((settings = switch_xml_child(cfg, "global_settings"))) {
		for (param = switch_xml_child(settings, "param"); param; param = param->next) {
			char *var = (char *) switch_xml_attr_soft(param, "name");
			char *val = (char *) switch_xml_attr_soft(param, "value");
			if (!strcasecmp(var, "log-level")) {
				su_log_set_level(NULL, atoi(val));
			}
		}
	}

	if ((profiles = switch_xml_child(cfg, "profiles"))) {
		for (xprofile = switch_xml_child(profiles, "profile"); xprofile; xprofile = xprofile->next) {
			if (!(settings = switch_xml_child(xprofile, "settings"))) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No Settings, check the new config!\n");
			} else {
				char *xprofilename = (char *) switch_xml_attr_soft(xprofile, "name");
				char *xprofiledomain = (char *) switch_xml_attr(xprofile, "domain");
				switch_memory_pool_t *pool = NULL;

				if (!xprofilename) {
					xprofilename = "unnamed";
				}

				if (profile_name) {
					if (strcasecmp(profile_name, xprofilename)) {
						continue;
					} else {
						profile_found = 1;
					}
				}

				/* Setup the pool */
				if ((status = switch_core_new_memory_pool(&pool)) != SWITCH_STATUS_SUCCESS) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Memory Error!\n");
					goto done;
				}

				if (!(profile = (sofia_profile_t *) switch_core_alloc(pool, sizeof(*profile)))) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
					goto done;
				}

				profile->pool = pool;
				profile->user_agent = SOFIA_USER_AGENT;

				profile->name = switch_core_strdup(profile->pool, xprofilename);
				switch_snprintf(url, sizeof(url), "sofia_reg_%s", xprofilename);

				if (xprofiledomain) {
					profile->domain_name = switch_core_strdup(profile->pool, xprofiledomain);
				} else {
					profile->domain_name = profile->name;
				}

				profile->dbname = switch_core_strdup(profile->pool, url);
				switch_core_hash_init(&profile->chat_hash, profile->pool);
				switch_thread_rwlock_create(&profile->rwlock, profile->pool);
				switch_mutex_init(&profile->flag_mutex, SWITCH_MUTEX_NESTED, profile->pool);
				profile->dtmf_duration = 100;
				profile->tls_version = 0;
				profile->mflags = MFLAG_REFER | MFLAG_REGISTER;
				
				for (param = switch_xml_child(settings, "param"); param; param = param->next) {
					char *var = (char *) switch_xml_attr_soft(param, "name");
					char *val = (char *) switch_xml_attr_soft(param, "value");

					if (!strcasecmp(var, "debug")) {
						profile->debug = atoi(val);
					} else if (!strcasecmp(var, "use-rtp-timer") && switch_true(val)) {
						switch_set_flag(profile, TFLAG_TIMER);
					} else if (!strcasecmp(var, "sip-trace") && switch_true(val)) {
						switch_set_flag(profile, TFLAG_TPORT_LOG);
					} else if (!strcasecmp(var, "odbc-dsn") && !switch_strlen_zero(val)) {
#ifdef SWITCH_HAVE_ODBC
						profile->odbc_dsn = switch_core_strdup(profile->pool, val);
						if ((profile->odbc_user = strchr(profile->odbc_dsn, ':'))) {
							*profile->odbc_user++ = '\0';
							if ((profile->odbc_pass = strchr(profile->odbc_user, ':'))) {
								*profile->odbc_pass++ = '\0';
							}
						}

#else
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ODBC IS NOT AVAILABLE!\n");
#endif
					} else if (!strcasecmp(var, "user-agent-string")) {
						profile->user_agent = switch_core_strdup(profile->pool, val);;
					} else if (!strcasecmp(var, "dtmf-type")) {
						if (!strcasecmp(val, "rfc2833")) {
							profile->dtmf_type = DTMF_2833;
						} else if (!strcasecmp(val, "info")) {
							profile->dtmf_type = DTMF_INFO;
						} else {
							profile->dtmf_type = DTMF_NONE;
						}
					} else if (!strcasecmp(var, "record-template")) {
						profile->record_template = switch_core_strdup(profile->pool, val);;
					} else if (!strcasecmp(var, "inbound-no-media") && switch_true(val)) {
						switch_set_flag(profile, TFLAG_INB_NOMEDIA);
					} else if (!strcasecmp(var, "inbound-bypass-media") && switch_true(val)) {
						switch_set_flag(profile, TFLAG_INB_NOMEDIA);
					} else if (!strcasecmp(var, "inbound-late-negotiation") && switch_true(val)) {
						switch_set_flag(profile, TFLAG_LATE_NEGOTIATION);
					} else if (!strcasecmp(var, "inbound-proxy-media") && switch_true(val)) {
						switch_set_flag(profile, TFLAG_PROXY_MEDIA);
					} else if (!strcasecmp(var, "NDLB-received-in-nat-reg-contact") && switch_true(val)) {
						profile->pflags |= PFLAG_RECIEVED_IN_NAT_REG_CONTACT;
					} else if (!strcasecmp(var, "aggressive-nat-detection") && switch_true(val)) {
						profile->pflags |= PFLAG_AGGRESSIVE_NAT_DETECTION;
					} else if (!strcasecmp(var, "rfc2833-pt")) {
						profile->te = (switch_payload_t) atoi(val);
					} else if (!strcasecmp(var, "cng-pt")) {
						profile->cng_pt = (switch_payload_t) atoi(val);
					} else if (!strcasecmp(var, "sip-port")) {
						profile->sip_port = atoi(val);
					} else if (!strcasecmp(var, "vad")) {
						if (!strcasecmp(val, "in")) {
							switch_set_flag(profile, TFLAG_VAD_IN);
						} else if (!strcasecmp(val, "out")) {
							switch_set_flag(profile, TFLAG_VAD_OUT);
						} else if (!strcasecmp(val, "both")) {
							switch_set_flag(profile, TFLAG_VAD_IN);
							switch_set_flag(profile, TFLAG_VAD_OUT);
						} else {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invald option %s for VAD\n", val);
						}
					} else if (!strcasecmp(var, "ext-rtp-ip")) {
						char *ip = mod_sofia_globals.guess_ip;

						if (!strcmp(val, "0.0.0.0")) {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invald IP 0.0.0.0 replaced with %s\n", mod_sofia_globals.guess_ip);
						} else {
							ip = strcasecmp(val, "auto") ? val : mod_sofia_globals.guess_ip;
						}
						profile->extrtpip = switch_core_strdup(profile->pool, ip);
					} else if (!strcasecmp(var, "rtp-ip")) {
						char *ip = mod_sofia_globals.guess_ip;

						if (!strcmp(val, "0.0.0.0")) {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invald IP 0.0.0.0 replaced with %s\n", mod_sofia_globals.guess_ip);
						} else {
							ip = strcasecmp(val, "auto") ? val : mod_sofia_globals.guess_ip;
						}
						profile->rtpip = switch_core_strdup(profile->pool, ip);
					} else if (!strcasecmp(var, "sip-ip")) {
						char *ip = mod_sofia_globals.guess_ip;

						if (!strcmp(val, "0.0.0.0")) {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invald IP 0.0.0.0 replaced with %s\n", mod_sofia_globals.guess_ip);
						} else {
							ip = strcasecmp(val, "auto") ? val : mod_sofia_globals.guess_ip;
						}
						profile->sipip = switch_core_strdup(profile->pool, ip);
					} else if (!strcasecmp(var, "ext-sip-ip")) {
						char *ip = mod_sofia_globals.guess_ip;
						char stun_ip[50] = "";
						char *myip = stun_ip;

						switch_copy_string(stun_ip, ip, sizeof(stun_ip));

						if (!strcasecmp(val, "0.0.0.0")) {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invald IP 0.0.0.0 replaced with %s\n", mod_sofia_globals.guess_ip);
						} else if (strcasecmp(val, "auto")) {
							switch_port_t port = 0;
							if (sofia_glue_ext_address_lookup(&myip, &port, val, profile->pool) == SWITCH_STATUS_SUCCESS) {
								ip = myip;
							} else {
								switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to get external ip.\n");
							}
						}
						profile->extsipip = switch_core_strdup(profile->pool, ip);
					} else if (!strcasecmp(var, "force-register-domain")) {
						profile->reg_domain = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "bind-params")) {
						profile->bind_params = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "sip-domain")) {
						profile->sipdomain = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "rtp-timer-name")) {
						profile->timer_name = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "hold-music")) {
						profile->hold_music = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "session-timeout")) {
						int v_session_timeout = atoi(val);
						if (v_session_timeout >= 0) {
							profile->session_timeout = v_session_timeout;
						}
					} else if (!strcasecmp(var, "max-proceeding")) {
						int v_max_proceeding = atoi(val);
						if (v_max_proceeding >= 0) {
							profile->max_proceeding = v_max_proceeding;
						}
					} else if (!strcasecmp(var, "rtp-timeout-sec")) {
						int v = atoi(val);
						if (v >= 0) {
							profile->rtp_timeout_sec = v;
						}
					} else if (!strcasecmp(var, "rtp-hold-timeout-sec")) {
						int v = atoi(val);
						if (v >= 0) {
							profile->rtp_hold_timeout_sec = v;
						}
					} else if (!strcasecmp(var, "disable-transfer") && switch_true(val)) {
						profile->mflags &= ~MFLAG_REFER;
					} else if (!strcasecmp(var, "disable-register") && switch_true(val)) {
						profile->mflags &= ~MFLAG_REGISTER;
					} else if (!strcasecmp(var, "manage-presence")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_PRESENCE;
						}
					} else if (!strcasecmp(var, "unregister-on-options-fail")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_UNREG_OPTIONS_FAIL;
						}
					} else if (!strcasecmp(var, "require-secure-rtp")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_SECURE;
						}
					} else if (!strcasecmp(var, "multiple-registrations")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_MULTIREG;
						}
					} else if (!strcasecmp(var, "supress-cng")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_SUPRESS_CNG;
						}
					} else if (!strcasecmp(var, "NDLB-to-in-200-contact")) {
						if (switch_true(val)) {
							profile->ndlb |= PFLAG_NDLB_TO_IN_200_CONTACT;
						}
					} else if (!strcasecmp(var, "NDLB-broken-auth-hash")) {
						if (switch_true(val)) {
							profile->ndlb |= PFLAG_NDLB_BROKEN_AUTH_HASH;
						}
					} else if (!strcasecmp(var, "pass-rfc2833")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_PASS_RFC2833;
						}
					} else if (!strcasecmp(var, "inbound-codec-negotiation")) {
						if (!strcasecmp(val, "greedy")) {
							profile->pflags |= PFLAG_GREEDY;
						}
					} else if (!strcasecmp(var, "disable-transcoding")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_DISABLE_TRANSCODING;
						}
					} else if (!strcasecmp(var, "rtp-rewrite-timestamps")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_REWRITE_TIMESTAMPS;
						}
					} else if (!strcasecmp(var, "auth-calls")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_AUTH_CALLS;
						}
					} else if (!strcasecmp(var, "nonce-ttl")) {
						profile->nonce_ttl = atoi(val);
					} else if (!strcasecmp(var, "accept-blind-reg")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_BLIND_REG;
						}
					} else if (!strcasecmp(var, "accept-blind-auth")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_BLIND_AUTH;
						}
					} else if (!strcasecmp(var, "auth-all-packets")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_AUTH_ALL;
						}
					} else if (!strcasecmp(var, "full-id-in-dialplan")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_FULL_ID;
						}
					} else if (!strcasecmp(var, "inbound-reg-force-matching-username")) {
						if (switch_true(val)) {
							profile->pflags |= PFLAG_CHECKUSER;
						}
					} else if (!strcasecmp(var, "enable-timer")) {
						if (!switch_true(val)) {
							profile->pflags |= PFLAG_DISABLE_TIMER;
						}
					} else if (!strcasecmp(var, "enable-100rel")) {
						if (!switch_true(val)) {
							profile->pflags |= PFLAG_DISABLE_100REL;
						}
					} else if (!strcasecmp(var, "bitpacking")) {
						if (!strcasecmp(val, "aal2")) {
							profile->codec_flags = SWITCH_CODEC_FLAG_AAL2;
						}
					} else if (!strcasecmp(var, "username")) {
						profile->username = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "context")) {
						profile->context = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "apply-nat-acl")) {
						if (profile->acl_count < SOFIA_MAX_ACL) {
							profile->nat_acl[profile->nat_acl_count++] = switch_core_strdup(profile->pool, val);
						} else {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Max acl records of %d reached\n", SOFIA_MAX_ACL);
						}
					} else if (!strcasecmp(var, "apply-inbound-acl")) {
						if (profile->acl_count < SOFIA_MAX_ACL) {
							profile->acl[profile->acl_count++] = switch_core_strdup(profile->pool, val);
						} else {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Max acl records of %d reached\n", SOFIA_MAX_ACL);
						}
					} else if (!strcasecmp(var, "apply-register-acl")) {
						if (profile->reg_acl_count < SOFIA_MAX_ACL) {
							profile->reg_acl[profile->reg_acl_count++] = switch_core_strdup(profile->pool, val);
						} else {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Max acl records of %d reached\n", SOFIA_MAX_ACL);
						}
					} else if (!strcasecmp(var, "alias")) {
						sip_alias_node_t *node;
						if ((node = switch_core_alloc(profile->pool, sizeof(*node)))) {
							if ((node->url = switch_core_strdup(profile->pool, val))) {
								node->next = profile->aliases;
								profile->aliases = node;
							}
						}
					} else if (!strcasecmp(var, "dialplan")) {
						profile->dialplan = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "max-calls")) {
						profile->max_calls = atoi(val);
					} else if (!strcasecmp(var, "codec-prefs")) {
						profile->codec_string = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "dtmf-duration")) {
						int dur = atoi(val);
						if (dur > 10 && dur < 8000) {
							profile->dtmf_duration = dur;
						} else {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Duration out of bounds!\n");
						}

					/*
					 * handle TLS params #1
					 */
					} else if (!strcasecmp(var, "tls")) {
						if (switch_true(val)) {
							sofia_set_pflag(profile, PFLAG_TLS);
						}
					} else if (!strcasecmp(var, "tls-bind-params")) {
						profile->tls_bind_params = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "tls-sip-port")) {
						profile->tls_sip_port = atoi(val);
					} else if (!strcasecmp(var, "tls-cert-dir")) {
						profile->tls_cert_dir = switch_core_strdup(profile->pool, val);
					} else if (!strcasecmp(var, "tls-version")) {

						if (!strcasecmp(val, "tlsv1")) {
							profile->tls_version = 1;
						} else {
							profile->tls_version = 0;
						}
 					}
				}

				if (!profile->cng_pt) {
					profile->cng_pt = SWITCH_RTP_CNG_PAYLOAD;
				}

				if (!profile->sipip) {
					profile->sipip = switch_core_strdup(profile->pool, mod_sofia_globals.guess_ip);
				}

				if (!profile->rtpip) {
					profile->rtpip = switch_core_strdup(profile->pool, mod_sofia_globals.guess_ip);
				}

				if (profile->nonce_ttl < 60) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Setting nonce TTL to 60 seconds\n");
					profile->nonce_ttl = 60;
				}

				if (switch_test_flag(profile, TFLAG_TIMER) && !profile->timer_name) {
					profile->timer_name = switch_core_strdup(profile->pool, "soft");
				}

				if (!profile->username) {
					profile->username = switch_core_strdup(profile->pool, "FreeSWITCH");
				}

				if (!profile->rtpip) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Setting ip to '127.0.0.1'\n");
					profile->rtpip = switch_core_strdup(profile->pool, "127.0.0.1");
				}

				if (!profile->sip_port) {
					profile->sip_port = atoi(SOFIA_DEFAULT_PORT);
				}

				if (!profile->dialplan) {
					profile->dialplan = switch_core_strdup(profile->pool, "XML");
				}

				if (!profile->sipdomain) {
					profile->sipdomain = switch_core_strdup(profile->pool, profile->sipip);
				}
				if (profile->extsipip) {
					profile->url = switch_core_sprintf(profile->pool, "sip:mod_sofia@%s:%d", profile->extsipip, profile->sip_port);
					profile->bindurl = switch_core_sprintf(profile->pool, "%s;maddr=%s", profile->url, profile->sipip);
				} else {
					profile->url = switch_core_sprintf(profile->pool, "sip:mod_sofia@%s:%d", profile->sipip, profile->sip_port);
					profile->bindurl = profile->url;
				}

				if (profile->bind_params) {
					char *bindurl = profile->bindurl;
					profile->bindurl = switch_core_sprintf(profile->pool, "%s;%s", bindurl, profile->bind_params);
				}

				/*
				 * handle TLS params #2
				 */
				if (sofia_test_pflag(profile, PFLAG_TLS)) {
					if (!profile->tls_sip_port) {
						profile->tls_sip_port = atoi(SOFIA_DEFAULT_TLS_PORT);
					}

					if (profile->extsipip) {
						profile->tls_url = switch_core_sprintf(profile->pool, "sip:mod_sofia@%s:%d", profile->extsipip, profile->tls_sip_port);
						profile->tls_bindurl = switch_core_sprintf(profile->pool, "sips:mod_sofia@%s:%d;maddr=%s", profile->extsipip, profile->tls_sip_port, profile->sipip);
					} else {
						profile->tls_url = switch_core_sprintf(profile->pool, "sip:mod_sofia@%s:%d", profile->sipip, profile->tls_sip_port);
						profile->tls_bindurl = switch_core_sprintf(profile->pool, "sips:mod_sofia@%s:%d", profile->sipip, profile->tls_sip_port);
					}

					if (profile->tls_bind_params) {
						char *tls_bindurl = profile->tls_bindurl;
						profile->tls_bindurl = switch_core_sprintf(profile->pool, "%s;%s", tls_bindurl, profile->tls_bind_params);
					}

					if (!profile->tls_cert_dir) {
						profile->tls_cert_dir = switch_core_sprintf(profile->pool, "%s/ssl", SWITCH_GLOBAL_dirs.conf_dir);
					}
				}
			}
			if (profile) {
				switch_xml_t aliases_tag, alias_tag;

				if ((gateways_tag = switch_xml_child(xprofile, "registrations"))) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT,
									  "The <registrations> syntax has been discontinued, please see the new syntax in the default configuration examples\n");
				} else if ((gateways_tag = switch_xml_child(xprofile, "gateways"))) {
					parse_gateways(profile, gateways_tag);
				}

				if ((domains_tag = switch_xml_child(xprofile, "domains"))) {
					for (domain_tag = switch_xml_child(domains_tag, "domain"); domain_tag; domain_tag = domain_tag->next) {
						switch_xml_t droot, x_domain_tag;
						const char *dname = switch_xml_attr_soft(domain_tag, "name");
						const char *parse = switch_xml_attr_soft(domain_tag, "parse");
						const char *alias = switch_xml_attr_soft(domain_tag, "alias");
						
						if (!switch_strlen_zero(dname)) { 
							if (!strcasecmp(dname, "all")) {
								switch_xml_t xml_root, x_domains;
								if (switch_xml_locate("directory", NULL, NULL, NULL, &xml_root, &x_domains, NULL) == SWITCH_STATUS_SUCCESS) {
									for(x_domain_tag = switch_xml_child(x_domains, "domain"); x_domain_tag; x_domain_tag = x_domain_tag->next) {
										dname = switch_xml_attr_soft(x_domain_tag, "name");
										parse_domain_tag(profile, x_domain_tag, dname, parse, alias);
									}
									switch_xml_free(xml_root);
								}
							} else if (switch_xml_locate_domain(dname, NULL, &droot, &x_domain_tag) == SWITCH_STATUS_SUCCESS) {
								parse_domain_tag(profile, x_domain_tag, dname, parse, alias);
								switch_xml_free(droot);									
							}
						}
					}
				}

				if ((aliases_tag = switch_xml_child(xprofile, "aliases"))) {
					for (alias_tag = switch_xml_child(aliases_tag, "alias"); alias_tag; alias_tag = alias_tag->next) {
						char *aname = (char *) switch_xml_attr_soft(alias_tag, "name");
						if (!switch_strlen_zero(aname)) {

							if (sofia_glue_add_profile(switch_core_strdup(profile->pool, aname), profile) == SWITCH_STATUS_SUCCESS) {
								switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Adding Alias [%s] for profile [%s]\n", aname, profile->name);
							} else {
								switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Adding Alias [%s] for profile [%s] (name in use)\n", 
												   aname, profile->name);
							}
						}
					}
				}

				if (profile->sipip) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Started Profile %s [%s]\n", profile->name, url);
					launch_sofia_profile_thread(profile);
				} else {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Unable to start Profile %s due to no configured sip-ip\n", profile->name);
				}
				profile = NULL;
			}
			if (profile_found) {
				break;
			}
		}
	}
  done:

	switch_event_destroy(&params);

	if (xml) {
		switch_xml_free(xml);
	}

	if (profile_name && !profile_found) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "No Such Profile '%s'\n", profile_name);
		status = SWITCH_STATUS_FALSE;
	}

	return status;
}

static void sofia_handle_sip_r_options(switch_core_session_t *session, int status,
									   char const *phrase,
									  nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[])
{
	sofia_gateway_t *gateway = NULL;

	if (sofia_private && !switch_strlen_zero(sofia_private->gateway_name)) {
		gateway = sofia_reg_find_gateway(sofia_private->gateway_name);
		sofia_private->destroy_me = 1;
	}

	if (gateway) {
		if (status == 200 || status == 404) {
			//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "ping success %s\n", gateway->name);
			if (gateway->state == REG_STATE_FAILED) {
				gateway->state = REG_STATE_UNREGED;
			}
			gateway->status = SOFIA_GATEWAY_UP;
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "ping failed %s\n", gateway->name);
			gateway->status = SOFIA_GATEWAY_DOWN;
			if (gateway->state == REG_STATE_REGED) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "unregister %s\n", gateway->name);
				gateway->state = REG_STATE_UNREGISTER;
			}
		}
		gateway->ping = switch_timestamp(NULL) + gateway->ping_freq;
		sofia_reg_release_gateway(gateway);
		gateway->pinging = 0;
	} else if ((profile->pflags & PFLAG_UNREG_OPTIONS_FAIL) && status != 200 && sip && sip->sip_to) {
		char *sql;
		time_t now = switch_timestamp(NULL);
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Expire registration '%s@%s' due to options failure\n", 
						  sip->sip_to->a_url->url_user,
						  sip->sip_to->a_url->url_host
						  );

		sql = switch_mprintf("update sip_registrations set expired=%ld where sip_user='%s' and sip_host='%s'", 
								   (long)now,
								   sip->sip_to->a_url->url_user,
								   sip->sip_to->a_url->url_host
								   );
		sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
	}
}


static void sofia_handle_sip_r_invite(switch_core_session_t *session, int status,
									  char const *phrase,
									  nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[])
{
	if (sip && session) {
		switch_channel_t *channel = switch_core_session_get_channel(session);
		const char *uuid;
		switch_core_session_t *other_session;
		private_object_t *tech_pvt = switch_core_session_get_private(session);
		
		switch_channel_clear_flag(channel, CF_REQ_MEDIA);

		if (switch_channel_test_flag(channel, CF_PROXY_MODE) || switch_channel_test_flag(channel, CF_PROXY_MEDIA)) {

			if (!switch_test_flag(tech_pvt, TFLAG_SENT_UPDATE)) {
				return;
			}

			switch_clear_flag_locked(tech_pvt, TFLAG_SENT_UPDATE);

			if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE)) && (other_session = switch_core_session_locate(uuid))) {
				const char *r_sdp = NULL;
				switch_core_session_message_t msg = { 0 };
			
				if (sip->sip_payload && sip->sip_payload->pl_data && 
					sip->sip_content_type && sip->sip_content_type->c_subtype && switch_stristr("sdp", sip->sip_content_type->c_subtype)) {
					r_sdp = sip->sip_payload->pl_data;
				}

				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Passing %d %s to other leg\n", status, phrase);
				
				msg.message_id = SWITCH_MESSAGE_INDICATE_RESPOND;
				msg.from = __FILE__;
				msg.numeric_arg = status;
				msg.string_arg = switch_core_session_strdup(other_session, phrase);
				if (r_sdp) {
					msg.pointer_arg = switch_core_session_strdup(other_session, r_sdp);
					msg.pointer_arg_size = strlen(r_sdp);
				}
				if (switch_core_session_receive_message(other_session, &msg) != SWITCH_STATUS_SUCCESS) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Other leg is not available\n");
					nua_respond(tech_pvt->nh, 403, "Hangup in progress", TAG_END());
				}
				switch_core_session_rwunlock(other_session);
			}
			return;
		}

		if ((status == 180 || status == 183 || status == 200)) {
			const char *astate = "early";
			url_t *from = NULL, *to = NULL, *contact = NULL;

			if (sip->sip_to) {
				to = sip->sip_to->a_url;
			}
			if (sip->sip_from) {
				from = sip->sip_from->a_url;
			}
			if (sip->sip_contact) {
				contact = sip->sip_contact->m_url;
			}

			if (status == 200) {
				astate = "confirmed";
			}

			if (!switch_channel_test_flag(channel, CF_EARLY_MEDIA) && !switch_channel_test_flag(channel, CF_ANSWERED) && 
				!switch_channel_test_flag(channel, CF_RING_READY)) {
				const char *from_user = "", *from_host = "", *to_user = "", *to_host = "", *contact_user = "", *contact_host = "";
				const char *user_agent = "", *call_id = "";
				char *sql = NULL;

				if (sip->sip_user_agent) {
					user_agent = switch_str_nil(sip->sip_user_agent->g_string);
				}

				if (sip->sip_call_id) {
					call_id = switch_str_nil(sip->sip_call_id->i_id);
				}

				if (to) {
					from_user = switch_str_nil(to->url_user);
				}

				if (from) {
					from_host = switch_str_nil(from->url_host);
					to_user = switch_str_nil(from->url_user);
					to_host = switch_str_nil(from->url_host);
				}

				if (contact) {
					contact_user = switch_str_nil(contact->url_user);
					contact_host = switch_str_nil(contact->url_host);
				}

				if (profile->pflags & PFLAG_PRESENCE) {
					sql = switch_mprintf(
										 "insert into sip_dialogs values('%q','%q','%q','%q','%q','%q','%q','%q','%q','%q','%q')",
										 call_id,
										 switch_core_session_get_uuid(session),
										 to_user,
										 to_host,
										 from_user,
										 from_host,
										 contact_user,
										 contact_host,
										 astate,
										 "outbound",
										 user_agent
										 );

					switch_assert(sql);
					
					sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
				}
			} else if (status == 200 && (profile->pflags & PFLAG_PRESENCE)) { 
				char *sql = NULL;
				sql = switch_mprintf("update sip_dialogs set state='%s' where uuid='%s';\n", astate, switch_core_session_get_uuid(session));
				switch_assert(sql); 
				sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE); 
			}
		}
	}
}

static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
									 char const *phrase,
									 nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[])
{
	const char *l_sdp = NULL, *r_sdp = NULL;
	int offer_recv = 0, answer_recv = 0, offer_sent = 0, answer_sent = 0;
	int ss_state = nua_callstate_init;
	switch_channel_t *channel = NULL;
	private_object_t *tech_pvt = NULL;
	const char *replaces_str = NULL;
	const char *uuid;
	switch_core_session_t *other_session = NULL;
	switch_channel_t *other_channel = NULL;
	char st[80] = "";

	tl_gets(tags,
			NUTAG_CALLSTATE_REF(ss_state),
			NUTAG_OFFER_RECV_REF(offer_recv),
			NUTAG_ANSWER_RECV_REF(answer_recv),
			NUTAG_OFFER_SENT_REF(offer_sent),
			NUTAG_ANSWER_SENT_REF(answer_sent),
			SIPTAG_REPLACES_STR_REF(replaces_str), SOATAG_LOCAL_SDP_STR_REF(l_sdp), SOATAG_REMOTE_SDP_STR_REF(r_sdp), TAG_END());

	if (session) {
		channel = switch_core_session_get_channel(session);
		tech_pvt = switch_core_session_get_private(session);
		switch_assert(tech_pvt != NULL);
		switch_assert(tech_pvt->nh != NULL);

		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Channel %s entering state [%s]\n",
						  switch_channel_get_name(channel), nua_callstate_name(ss_state));

		if (r_sdp) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Remote SDP:\n%s\n", r_sdp);
			tech_pvt->remote_sdp_str = switch_core_session_strdup(session, r_sdp);
			switch_channel_set_variable(channel, SWITCH_R_SDP_VARIABLE, r_sdp);
			sofia_glue_pass_sdp(tech_pvt, (char *) r_sdp);
		}
	}

	if (status == 988) {
		goto done;
	}

	if (status == 183 && !r_sdp) {
		status = 180;
	}

	if (channel && (status == 180 || status == 183) && switch_channel_test_flag(channel, CF_OUTBOUND)) {
		const char *val;
		if ((val = switch_channel_get_variable(channel, "sip_auto_answer")) && switch_true(val)) {
			nua_notify(nh, NUTAG_NEWSUB(1), NUTAG_SUBSTATE(nua_substate_active), SIPTAG_EVENT_STR("talk"), TAG_END());
		}
	}

 state_process:
	
	switch ((enum nua_callstate) ss_state) {
	case nua_callstate_init:
		break;
	case nua_callstate_authenticating:
		break;
	case nua_callstate_calling:
		break;
	case nua_callstate_proceeding:
		if (channel) {
			if (status == 180) {
				switch_channel_mark_ring_ready(channel);
				if (!switch_channel_test_flag(channel, CF_GEN_RINGBACK)) {
					if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
						if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
							&& (other_session = switch_core_session_locate(uuid))) {
							switch_core_session_message_t msg;
							msg.message_id = SWITCH_MESSAGE_INDICATE_RINGING;
							msg.from = __FILE__;
							switch_core_session_receive_message(other_session, &msg);
							switch_core_session_rwunlock(other_session);
						}

					} else {
						switch_core_session_queue_indication(session, SWITCH_MESSAGE_INDICATE_RINGING);
					}
				}
			}

			if (r_sdp) {
				if (switch_channel_test_flag(channel, CF_PROXY_MODE) || switch_channel_test_flag(channel, CF_PROXY_MEDIA)) {
					switch_set_flag_locked(tech_pvt, TFLAG_EARLY_MEDIA);
					switch_channel_mark_pre_answered(channel);
					switch_set_flag(tech_pvt, TFLAG_SDP);
					if (switch_channel_test_flag(channel, CF_PROXY_MEDIA)) {
						if (sofia_glue_activate_rtp(tech_pvt, 0) != SWITCH_STATUS_SUCCESS) {
							goto done;
						}
					}
					if (!switch_channel_test_flag(channel, CF_GEN_RINGBACK) && (uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
						&& (other_session = switch_core_session_locate(uuid))) {
						other_channel = switch_core_session_get_channel(other_session);
						if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
							switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
						}

						switch_channel_pre_answer(other_channel);
						switch_core_session_rwunlock(other_session);
					}
					goto done;
				} else {
					if (switch_channel_test_flag(channel, CF_PROXY_MEDIA) && !switch_channel_test_flag(tech_pvt->channel, CF_OUTBOUND)) {
						switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "PROXY MEDIA");
					} else if (switch_test_flag(tech_pvt, TFLAG_LATE_NEGOTIATION) && !switch_channel_test_flag(tech_pvt->channel, CF_OUTBOUND)) {
						switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "DELAYED NEGOTIATION");
					} else {
						if (sofia_glue_tech_media(tech_pvt, (char *) r_sdp) != SWITCH_STATUS_SUCCESS) {
							switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "CODEC NEGOTIATION ERROR");
							nua_respond(nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
							switch_channel_hangup(channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION);
						}
					}
					goto done;
				}
			}
		}
		break;
	case nua_callstate_completing:
		nua_ack(nh, TAG_END());
		break;
	case nua_callstate_received:
		if (tech_pvt && !switch_test_flag(tech_pvt, TFLAG_SDP)) {
			if (r_sdp && !switch_test_flag(tech_pvt, TFLAG_SDP)) {
				if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
					switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "RECEIVED_NOMEDIA");
					switch_set_flag_locked(tech_pvt, TFLAG_READY);
					if (switch_channel_get_state(channel) == CS_NEW) {
						switch_channel_set_state(channel, CS_INIT);
					}
					switch_set_flag(tech_pvt, TFLAG_SDP);
					goto done;
				} else if (switch_channel_test_flag(tech_pvt->channel, CF_PROXY_MEDIA)) {
                    switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "PROXY MEDIA");
                    switch_set_flag_locked(tech_pvt, TFLAG_READY);
                    if (switch_channel_get_state(channel) == CS_NEW) {
                        switch_channel_set_state(channel, CS_INIT);
                    }
				} else if (switch_test_flag(tech_pvt, TFLAG_LATE_NEGOTIATION)) {
                    switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "DELAYED NEGOTIATION");
                    switch_set_flag_locked(tech_pvt, TFLAG_READY);
                    if (switch_channel_get_state(channel) == CS_NEW) {
                        switch_channel_set_state(channel, CS_INIT);
                    }
                } else {
					sdp_parser_t *parser;
					sdp_session_t *sdp;
					uint8_t match = 0;

					if (tech_pvt->num_codecs) {
						if ((parser = sdp_parse(NULL, r_sdp, (int) strlen(r_sdp), 0))) {
							if ((sdp = sdp_session(parser))) {
								match = sofia_glue_negotiate_sdp(session, sdp);
							}
							sdp_parser_free(parser);
						}
					}
					
					if (match) {
						nua_handle_t *bnh;
						sip_replaces_t *replaces;
						su_home_t *home = NULL;
						switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "RECEIVED");
						switch_set_flag_locked(tech_pvt, TFLAG_READY);
						if (switch_channel_get_state(channel) == CS_NEW) {
							switch_channel_set_state(channel, CS_INIT);
						}
						switch_set_flag(tech_pvt, TFLAG_SDP);
						if (replaces_str) {
							home = su_home_new(sizeof(*home));
							switch_assert(home != NULL);
							if ((replaces = sip_replaces_make(home, replaces_str))
								&& (bnh = nua_handle_by_replaces(nua, replaces))) {
								sofia_private_t *b_private;

								switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Processing Replaces Attended Transfer\n");
								while (switch_channel_get_state(channel) < CS_EXECUTE) {
									switch_yield(10000);
								}
								
								if ((b_private = nua_handle_magic(bnh))) {
									const char *br_b = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE);
									char *br_a = b_private->uuid;
									
									if (br_b) {
										switch_ivr_uuid_bridge(br_a, br_b);
										switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER");
										switch_clear_flag_locked(tech_pvt, TFLAG_SIP_HOLD);
										switch_channel_hangup(channel, SWITCH_CAUSE_ATTENDED_TRANSFER);
									} else {
										switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER_ERROR");
										switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
									}
								} else {
									switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER_ERROR");
									switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
								}
								nua_handle_unref(bnh);
							}
							su_home_unref(home);
							home = NULL;
						}

						goto done;
					}

					switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "NO CODECS");
					switch_channel_hangup(channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION);
				}
			} else {
				if (switch_channel_test_flag(channel, CF_PROXY_MODE) || switch_channel_test_flag(channel, CF_PROXY_MEDIA)) {
					goto done;
				} else {
					switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "RECEIVED_NOSDP");
					sofia_glue_tech_choose_port(tech_pvt, 0);
					sofia_glue_set_local_sdp(tech_pvt, NULL, 0, NULL, 0);
					switch_channel_set_state(channel, CS_HIBERNATE);
					nua_respond(tech_pvt->nh, SIP_200_OK,
								SIPTAG_CONTACT_STR(tech_pvt->profile->url),
								SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
								SOATAG_REUSE_REJECTED(1),
								SOATAG_ORDERED_USER(1),
								SOATAG_AUDIO_AUX("cn telephone-event"),
								NUTAG_INCLUDE_EXTRA_SDP(1),
								TAG_END());
					goto done;
				}
			}

		} else {
			ss_state = nua_callstate_completed;
			goto state_process;
		}

		break;
	case nua_callstate_early:
		break;
	case nua_callstate_completed:
		if (tech_pvt && r_sdp) {
			sdp_parser_t *parser; 
			sdp_session_t *sdp;
			uint8_t match = 0;

			if (r_sdp) { 
				if (switch_channel_test_flag(channel, CF_PROXY_MODE) || switch_channel_test_flag(channel, CF_PROXY_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);
						if (switch_core_session_receive_message(other_session, &msg) != SWITCH_STATUS_SUCCESS) {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Other leg is not available\n");
							nua_respond(tech_pvt->nh, 403, "Hangup in progress", TAG_END());
						}					
						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");
						switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
					}
					goto done;
				} else {
					if (tech_pvt->num_codecs) {
						if ((parser = sdp_parse(NULL, r_sdp, (int) strlen(r_sdp), 0))) {
							if ((sdp = sdp_session(parser))) {
								match = sofia_glue_negotiate_sdp(session, sdp);
							}
							sdp_parser_free(parser);
						}
					}
					if (match) {
						if (sofia_glue_tech_choose_port(tech_pvt, 0) != SWITCH_STATUS_SUCCESS) {
							goto done;
						}
						sofia_glue_set_local_sdp(tech_pvt, NULL, 0, NULL, 0);
						switch_set_flag_locked(tech_pvt, TFLAG_REINVITE);
						if (sofia_glue_activate_rtp(tech_pvt, 0) != SWITCH_STATUS_SUCCESS) {
							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Reinvite RTP Error!\n");
							switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
						}
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Processing Reinvite\n");
					} else {
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Reinvite Codec Error!\n");
						switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
					}
				}


				nua_respond(tech_pvt->nh, SIP_200_OK,
							SIPTAG_CONTACT_STR(tech_pvt->reply_contact),
							SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
							SOATAG_REUSE_REJECTED(1),
							SOATAG_ORDERED_USER(1),
							SOATAG_AUDIO_AUX("cn telephone-event"),
							NUTAG_INCLUDE_EXTRA_SDP(1),
							TAG_END());
			}
		}
		break;
	case nua_callstate_ready:
		if (channel) {
			switch_channel_clear_flag(channel, CF_REQ_MEDIA);
		}
		if (tech_pvt && nh == tech_pvt->nh2) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Cheater Reinvite!\n");
			switch_set_flag_locked(tech_pvt, TFLAG_REINVITE);
			tech_pvt->nh = tech_pvt->nh2;
			tech_pvt->nh2 = NULL;
			if (sofia_glue_tech_choose_port(tech_pvt, 0) == SWITCH_STATUS_SUCCESS) {
				if (sofia_glue_activate_rtp(tech_pvt, 0) != SWITCH_STATUS_SUCCESS) {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cheater Reinvite RTP Error!\n");
					switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
				}
			}
			goto done;
		}

		if (channel) {
			if (switch_test_flag(tech_pvt, TFLAG_EARLY_MEDIA)) {
				switch_set_flag_locked(tech_pvt, TFLAG_ANS);
                switch_set_flag(tech_pvt, TFLAG_SDP);
				switch_channel_mark_answered(channel);
				if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
					&& (other_session = switch_core_session_locate(uuid))) {
					other_channel = switch_core_session_get_channel(other_session);
					switch_channel_answer(other_channel);
					switch_core_session_rwunlock(other_session);
				}
				goto done;
			}

			if (!r_sdp && !switch_test_flag(tech_pvt, TFLAG_SDP)) {
				r_sdp = (const char *) switch_channel_get_variable(channel, SWITCH_R_SDP_VARIABLE);
			}
			if (r_sdp && !switch_test_flag(tech_pvt, TFLAG_SDP)) {
				if (switch_channel_test_flag(channel, CF_PROXY_MODE) || switch_channel_test_flag(channel, CF_PROXY_MEDIA)) {
					switch_set_flag_locked(tech_pvt, TFLAG_ANS);
					switch_set_flag_locked(tech_pvt, TFLAG_SDP);
					switch_channel_mark_answered(channel);
					if (switch_channel_test_flag(channel, CF_PROXY_MEDIA)) {
						if (sofia_glue_activate_rtp(tech_pvt, 0) != SWITCH_STATUS_SUCCESS) {
							goto done;
						}
					}

					if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
						&& (other_session = switch_core_session_locate(uuid))) {
						other_channel = switch_core_session_get_channel(other_session);
						if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
							switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
						}
						switch_channel_answer(other_channel);
						switch_core_session_rwunlock(other_session);
					}
					goto done;
				} else {
					sdp_parser_t *parser;
					sdp_session_t *sdp;
					uint8_t match = 0;

					if (tech_pvt->num_codecs) {
						if ((parser = sdp_parse(NULL, r_sdp, (int) strlen(r_sdp), 0))) {
							if ((sdp = sdp_session(parser))) {
								match = sofia_glue_negotiate_sdp(session, sdp);
							}
							sdp_parser_free(parser);
						}
					}

					if (match) {
						switch_set_flag_locked(tech_pvt, TFLAG_ANS);
						if (sofia_glue_tech_choose_port(tech_pvt, 0) == SWITCH_STATUS_SUCCESS) {
							if (sofia_glue_activate_rtp(tech_pvt, 0) == SWITCH_STATUS_SUCCESS) {
								switch_channel_mark_answered(channel);
							} else {
								switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "RTP Error!\n");
								switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
							}
							if (switch_channel_get_state(channel) == CS_HIBERNATE) {
								switch_set_flag_locked(tech_pvt, TFLAG_READY);
								if (switch_channel_get_state(channel) == CS_NEW) {
									switch_channel_set_state(channel, CS_INIT);
								}
								switch_set_flag(tech_pvt, TFLAG_SDP);
							}
							goto done;
						}
					}

					switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "NO CODECS");
					switch_channel_hangup(channel, SWITCH_CAUSE_INCOMPATIBLE_DESTINATION);
				}
			}
		}

		break;
	case nua_callstate_terminating:
		if (session) {
			if (!switch_test_flag(tech_pvt, TFLAG_BYE)) {
				switch_set_flag_locked(tech_pvt, TFLAG_BYE);
			}
		}
		break;
	case nua_callstate_terminated:
		if (session) {
			if (!switch_test_flag(tech_pvt, TFLAG_BYE)) {
				switch_set_flag_locked(tech_pvt, TFLAG_BYE);
				if (switch_test_flag(tech_pvt, TFLAG_NOHUP)) {
					switch_clear_flag_locked(tech_pvt, TFLAG_NOHUP);
				} else {
                    int cause;
                    if (tech_pvt->q850_cause) {
                        cause = tech_pvt->q850_cause;
                    } else {
                        cause = sofia_glue_sip_cause_to_freeswitch(status);
                    }
					if (status) {
						switch_snprintf(st, sizeof(st), "%d", status);
						switch_channel_set_variable(channel, "sip_term_status", st);
						switch_snprintf(st, sizeof(st), "sip:%d", status);
						switch_channel_set_variable_partner(channel, SWITCH_PROTO_SPECIFIC_HANGUP_CAUSE_VARIABLE, st);
					}
					switch_snprintf(st, sizeof(st), "%d", cause);
					switch_channel_set_variable(channel, "sip_term_cause", st);
					switch_channel_hangup(channel, cause);
				}
			}
			
			if (tech_pvt->sofia_private) {
				sofia_private = tech_pvt->sofia_private;
				tech_pvt->sofia_private = NULL;
				sofia_private->destroy_me = 1;
			}

			tech_pvt->nh = NULL;		


		} else if (sofia_private) {
			sofia_private->destroy_me = 1;
		}

		if (nh) {
			nua_handle_bind(nh, NULL);
			nua_handle_destroy(nh);
		}
		break;
	}

  done:
	return;
}

/*---------------------------------------*/
void sofia_handle_sip_i_refer(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, switch_core_session_t *session, sip_t const *sip, tagi_t tags[])
{
	/* Incoming refer */
	sip_from_t const *from;
	sip_to_t const *to;
	sip_refer_to_t const *refer_to;
	private_object_t *tech_pvt = switch_core_session_get_private(session);
	char *etmp = NULL, *exten = NULL;
	switch_channel_t *channel_a = switch_core_session_get_channel(session);
	switch_channel_t *channel_b = NULL;
	su_home_t *home = NULL;
	char *full_ref_by = NULL;
	char *full_ref_to = NULL;

	if (!(profile->mflags & MFLAG_REFER)) {
		nua_respond(nh, SIP_403_FORBIDDEN, NUTAG_WITH_THIS(nua), TAG_END());
		goto done;
	}

	if (!sip->sip_cseq || !(etmp = switch_mprintf("refer;id=%u", sip->sip_cseq->cs_seq))) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
		goto done;
	}

	from = sip->sip_from;
	to = sip->sip_to;
	
	home = su_home_new(sizeof(*home));
	switch_assert(home != NULL);

	if (sip->sip_referred_by) {		
		full_ref_by = sip_header_as_string(home, (void *) sip->sip_referred_by);
	}

	if ((refer_to = sip->sip_refer_to)) {
		full_ref_to = sip_header_as_string(home, (void *) sip->sip_refer_to);

		if (profile->pflags & PFLAG_FULL_ID) {
			exten = switch_mprintf("%s@%s", (char *) refer_to->r_url->url_user, (char *) refer_to->r_url->url_host);
		} else {
			exten = (char *) refer_to->r_url->url_user;
		}

		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Process REFER to [%s@%s]\n", exten, (char *) refer_to->r_url->url_host);

		if (refer_to->r_url->url_headers) {
			sip_replaces_t *replaces;
			nua_handle_t *bnh;
			char *rep;
			
			if (switch_channel_test_flag(channel_a, CF_PROXY_MODE)) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot Attended Transfer BYPASS MEDIA CALLS!\n");
				switch_channel_set_variable(channel_a, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER_ERROR");
				nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
						   NUTAG_SUBSTATE(nua_substate_terminated), SIPTAG_PAYLOAD_STR("SIP/2.0 403 Forbidden"), SIPTAG_EVENT_STR(etmp),
						   TAG_END());
				goto done;
			}

			if ((rep = strchr(refer_to->r_url->url_headers, '='))) {
				const char *br_a = NULL, *br_b = NULL;
				char *buf;

				rep++;

				if ((buf = switch_core_session_alloc(session, strlen(rep) + 1))) {
					rep = url_unescape(buf, (const char *) rep);
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Replaces: [%s]\n", rep);
				} else {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
					goto done;
				}

				if ((replaces = sip_replaces_make(home, rep))
					&& (bnh = nua_handle_by_replaces(nua, replaces))) {
					sofia_private_t *b_private = NULL;
					private_object_t *b_tech_pvt = NULL;
					switch_core_session_t *b_session = NULL;
					

					switch_channel_set_variable(channel_a, SOFIA_REPLACES_HEADER, rep);
					if ((b_private = nua_handle_magic(bnh))) {
						if (!(b_session = switch_core_session_locate(b_private->uuid))) {
							goto done;
						}
						b_tech_pvt = (private_object_t *) switch_core_session_get_private(b_session);
						channel_b = switch_core_session_get_channel(b_session);

						br_a = switch_channel_get_variable(channel_a, SWITCH_SIGNAL_BOND_VARIABLE);
						br_b = switch_channel_get_variable(channel_b, SWITCH_SIGNAL_BOND_VARIABLE);
						
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Attended Transfer [%s][%s]\n", switch_str_nil(br_a), switch_str_nil(br_b));

						if (br_a && br_b) {
							switch_core_session_t *new_b_session = NULL, *a_session = NULL;
								
							switch_ivr_uuid_bridge(br_b, br_a);
							switch_channel_set_variable(channel_b, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER");
							nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
									   NUTAG_SUBSTATE(nua_substate_terminated), SIPTAG_PAYLOAD_STR("SIP/2.0 200 OK"), SIPTAG_EVENT_STR(etmp), TAG_END());

							switch_clear_flag_locked(b_tech_pvt, TFLAG_SIP_HOLD);
							switch_ivr_park_session(b_session);
							new_b_session = switch_core_session_locate(br_b);
							a_session = switch_core_session_locate(br_a);
							sofia_info_send_sipfrag(a_session, new_b_session);
							if (new_b_session) {
								switch_core_session_rwunlock(new_b_session);
							}
							if (a_session) {
								switch_core_session_rwunlock(a_session);
							}
							//switch_channel_hangup(channel_b, SWITCH_CAUSE_ATTENDED_TRANSFER);
						} else {
							if (!br_a && !br_b) {
								switch_set_flag_locked(tech_pvt, TFLAG_NOHUP);
								switch_set_flag_locked(b_tech_pvt, TFLAG_XFER);
								b_tech_pvt->xferto = switch_core_session_strdup(b_session, switch_core_session_get_uuid(session));
								switch_set_flag_locked(tech_pvt, TFLAG_BYE);
								nua_notify(tech_pvt->nh,
											NUTAG_NEWSUB(1),
											SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
											NUTAG_SUBSTATE(nua_substate_terminated),
											SIPTAG_PAYLOAD_STR("SIP/2.0 200 OK"),
											SIPTAG_EVENT_STR(etmp),
											TAG_END());
							} else {
								switch_core_session_t *t_session;
								switch_channel_t *hup_channel;
								const char *ext;

								if (br_a && !br_b) {
									t_session = switch_core_session_locate(br_a);
									hup_channel = channel_b;
								} else {
									private_object_t *h_tech_pvt = (private_object_t *) switch_core_session_get_private(b_session);
									t_session = switch_core_session_locate(br_b);
									hup_channel = channel_a;
									switch_clear_flag_locked(tech_pvt, TFLAG_SIP_HOLD);
									switch_clear_flag_locked(h_tech_pvt, TFLAG_SIP_HOLD);
									switch_channel_hangup(channel_b, SWITCH_CAUSE_ATTENDED_TRANSFER);
								}

								if (t_session) {
									switch_channel_t *t_channel = switch_core_session_get_channel(t_session);
									ext = switch_channel_get_variable(hup_channel, "destination_number");

									if (!switch_strlen_zero(full_ref_by)) {
										switch_channel_set_variable(t_channel, SOFIA_SIP_HEADER_PREFIX "Referred-By", full_ref_by);
									}

									if (!switch_strlen_zero(full_ref_to)) {
										switch_channel_set_variable(t_channel, SOFIA_REFER_TO_VARIABLE, full_ref_to);
									}
									
									switch_ivr_session_transfer(t_session, ext, NULL, NULL);
									nua_notify(tech_pvt->nh,
												NUTAG_NEWSUB(1),
												SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
												NUTAG_SUBSTATE(nua_substate_terminated),
												SIPTAG_PAYLOAD_STR("SIP/2.0 200 OK"),
												SIPTAG_EVENT_STR(etmp),
												TAG_END());
									switch_core_session_rwunlock(t_session);
									switch_channel_hangup(hup_channel, SWITCH_CAUSE_ATTENDED_TRANSFER);
								} else {
									switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Session to transfer to not found.\n");
									nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
											   NUTAG_SUBSTATE(nua_substate_terminated),
											   SIPTAG_PAYLOAD_STR("SIP/2.0 403 Forbidden"), SIPTAG_EVENT_STR(etmp), TAG_END());
								}
							}
						}
						if (b_session) {
							switch_core_session_rwunlock(b_session);
						}
					}
					nua_handle_unref(bnh);
				} else {		/* the other channel is on a different box, we have to go find them */
					if (exten && (br_a = switch_channel_get_variable(channel_a, SWITCH_SIGNAL_BOND_VARIABLE))) {
						switch_core_session_t *a_session;
						switch_channel_t *channel = switch_core_session_get_channel(session);

						if ((a_session = switch_core_session_locate(br_a))) {
							switch_core_session_t *tsession;
							switch_call_cause_t cause = SWITCH_CAUSE_NORMAL_CLEARING;
							uint32_t timeout = 60;
							char *tuuid_str;
							const char *port = NULL;
							switch_status_t status;

							if (refer_to && refer_to->r_url && refer_to->r_url->url_port) {
								port = refer_to->r_url->url_port;
							}

							if (switch_strlen_zero(port)) {
								port = "5060";
							}
							channel = switch_core_session_get_channel(a_session);
							
							exten = switch_mprintf("sofia/%s/%s@%s:%s",
												   profile->name,
												   refer_to->r_url->url_user,
												   refer_to->r_url->url_host,
												   port);
							
							switch_channel_set_variable(channel, SOFIA_REPLACES_HEADER, rep);
							if (!switch_strlen_zero(full_ref_by)) {
								switch_channel_set_variable(channel, SOFIA_SIP_HEADER_PREFIX "Referred-By", full_ref_by);
							}
							if (!switch_strlen_zero(full_ref_to)) {
								switch_channel_set_variable(channel, SOFIA_REFER_TO_VARIABLE, full_ref_to);
							}
							status = switch_ivr_originate(a_session,
														  &tsession, &cause, exten, timeout, &noop_state_handler, NULL, NULL, NULL, SOF_NONE);

							switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot Create Outgoing Channel! [%s]\n", exten);
							nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("messsage/sipfrag"),
									   NUTAG_SUBSTATE(nua_substate_terminated),
									   SIPTAG_PAYLOAD_STR("SIP/2.0 403 Forbidden"), SIPTAG_EVENT_STR(etmp), TAG_END());
							
							switch_core_session_rwunlock(a_session);

							if (status != SWITCH_STATUS_SUCCESS) {
								goto done;
							}
							
							tuuid_str = switch_core_session_get_uuid(tsession);
							switch_ivr_uuid_bridge(br_a, tuuid_str);
							switch_channel_set_variable(channel_a, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER");
							switch_set_flag_locked(tech_pvt, TFLAG_BYE);
							nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
									   NUTAG_SUBSTATE(nua_substate_terminated), SIPTAG_PAYLOAD_STR("SIP/2.0 200 OK"), SIPTAG_EVENT_STR(etmp), TAG_END());
							switch_core_session_rwunlock(tsession);
						} else {
							goto error;
						}

					} else {
					  error:
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid Transfer! [%s]\n", br_a);
						switch_channel_set_variable(channel_a, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER_ERROR");
						nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
								   NUTAG_SUBSTATE(nua_substate_terminated), SIPTAG_PAYLOAD_STR("SIP/2.0 403 Forbidden"), SIPTAG_EVENT_STR(etmp),
								   TAG_END());
					}
				}
			} else {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot parse Replaces!\n");
			}
			goto done;
		}

	} else {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Missing Refer-To\n");
		goto done;
	}

	if (exten) {
		switch_channel_t *channel = switch_core_session_get_channel(session);
		const char *br;

		if ((br = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))) {
			switch_core_session_t *b_session;
			
			if ((b_session = switch_core_session_locate(br))) {
				switch_channel_t *b_channel = switch_core_session_get_channel(b_session);
				switch_channel_set_variable(channel, "transfer_fallback_extension", from->a_user);
				if (!switch_strlen_zero(full_ref_by)) {
					switch_channel_set_variable(b_channel, SOFIA_SIP_HEADER_PREFIX "Referred-By", full_ref_by);
				}
				if (!switch_strlen_zero(full_ref_to)) {
					switch_channel_set_variable(b_channel, SOFIA_REFER_TO_VARIABLE, full_ref_to);
				}



				switch_ivr_session_transfer(b_session, exten, NULL, NULL);
				switch_core_session_rwunlock(b_session);
			}

			switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "BLIND_TRANSFER");
			nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
			   NUTAG_SUBSTATE(nua_substate_terminated),
			   SIPTAG_PAYLOAD_STR("SIP/2.0 200 OK"),
			   SIPTAG_EVENT_STR(etmp),
			   TAG_END());
			 
		} else {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot Blind Transfer 1 Legged calls\n");
			switch_channel_set_variable(channel_a, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "ATTENDED_TRANSFER_ERROR");
			nua_notify(tech_pvt->nh, NUTAG_NEWSUB(1), SIPTAG_CONTENT_TYPE_STR("message/sipfrag"),
					   NUTAG_SUBSTATE(nua_substate_terminated), SIPTAG_PAYLOAD_STR("SIP/2.0 403 Forbidden"), SIPTAG_EVENT_STR(etmp),
					   TAG_END());
		}
	}

  done:
	if (home) {
		su_home_unref(home);
		home = NULL;
	}

	if (exten && strchr(exten, '@')) {
		switch_safe_free(exten);
	}
	if (etmp) {
		switch_safe_free(etmp);
	}
}

void sofia_handle_sip_i_info(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, switch_core_session_t *session, sip_t const *sip, tagi_t tags[])
{
	/* placeholder for string searching */
	const char *signal_ptr;
	const char *rec_header;
	const char *clientcode_header;
	switch_dtmf_t dtmf = { 0, switch_core_default_dtmf_duration(0) };
	
	if (session) {
		/* Get the channel */
		switch_channel_t *channel = switch_core_session_get_channel(session);

		/* Barf if we didn't get our private */
		assert(switch_core_session_get_private(session));

		if (sip && sip->sip_content_type && sip->sip_content_type->c_type && sip->sip_content_type->c_subtype && 
			sip->sip_payload && sip->sip_payload->pl_data) {
			if (!strncasecmp(sip->sip_content_type->c_type, "application", 11) && !strcasecmp(sip->sip_content_type->c_subtype, "dtmf-relay")) {
				/* Try and find signal information in the payload */
				if ((signal_ptr = switch_stristr("Signal=", sip->sip_payload->pl_data))) {
					/* move signal_ptr where we need it (right past Signal=) */
					signal_ptr = signal_ptr + 7;
					dtmf.digit = *signal_ptr;
				} else {
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Bad signal\n");
					goto fail;
				}

				if ((signal_ptr = switch_stristr("Duration=", sip->sip_payload->pl_data))) {
					int tmp;
					signal_ptr += 9;
					if ((tmp = atoi(signal_ptr)) <= 0) {
						tmp = switch_core_default_dtmf_duration(0);
					} 
					dtmf.duration = tmp * 8;
				}
			} else if (!strncasecmp(sip->sip_content_type->c_type, "application", 11) && !strcasecmp(sip->sip_content_type->c_subtype, "dtmf")) {
				dtmf.digit = *sip->sip_payload->pl_data;
			} else {
				goto fail;
			}
		
			if (dtmf.digit) {
				/* queue it up */
				switch_channel_queue_dtmf(channel, &dtmf);

				/* print debug info */
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "INFO DTMF(%c)\n", dtmf.digit);

				/* Send 200 OK response */
				nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
	
				return;
			} else {
				goto fail;
			}
		}

		if ((clientcode_header = sofia_glue_get_unknown_header(sip, "x-clientcode"))) {
			if (!switch_strlen_zero(clientcode_header)) {
				switch_channel_set_variable(channel, "call_clientcode", clientcode_header);
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Setting CMC to %s\n", clientcode_header);
				nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
			} else {
				goto fail;
			}
			return;
		}

		if ((rec_header = sofia_glue_get_unknown_header(sip, "record"))) {
			if (switch_strlen_zero(profile->record_template)) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Record attempted but no template defined.\n");
				nua_respond(nh, 488, "Recording not enabled", NUTAG_WITH_THIS(nua), TAG_END());
			} else {
				if (!strcasecmp(rec_header, "on")) {
					char *file;

					file = switch_channel_expand_variables(channel, profile->record_template);
					switch_ivr_record_session(session, file, 0, NULL);
					switch_channel_set_variable(channel, "sofia_record_file", file);
					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Recording %s to %s\n", switch_channel_get_name(channel), file);
					nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
					if (file != profile->record_template) {
						free(file);
						file = NULL;
					}
				} else {
					const char *file;

					if ((file = switch_channel_get_variable(channel, "sofia_record_file"))) {
						switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Done recording %s to %s\n", switch_channel_get_name(channel), file);
						switch_ivr_stop_record_session(session, file);
						nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
					} else {
						nua_respond(nh, 488, "Nothing to stop", NUTAG_WITH_THIS(nua), TAG_END());
					}
				}
			}
			return;
		}
	}
	return;

 fail:
	nua_respond(nh, 488, "Unsupported Request", NUTAG_WITH_THIS(nua), TAG_END());
}


#define url_set_chanvars(session, url, varprefix) _url_set_chanvars(session, url, #varprefix "_user", #varprefix "_host", #varprefix "_port", #varprefix "_uri", #varprefix "_params")
const char *_url_set_chanvars(switch_core_session_t *session, url_t *url, const char *user_var,
							  const char *host_var, const char *port_var, const char *uri_var, const char *params_var)
{
	const char *user = NULL, *host = NULL, *port = NULL;
	char *uri = NULL;
	switch_channel_t *channel = switch_core_session_get_channel(session);
	char new_port[25] = "";

	if (url) {
		user = url->url_user;
		host = url->url_host;
		port = url->url_port;
		if (!switch_strlen_zero(url->url_params)) {
			switch_channel_set_variable(channel, params_var, url->url_params);
		}
	}

	if (switch_strlen_zero(user)) {
		user = "nobody";
	}

	if (switch_strlen_zero(host)) {
		host = "nowhere";
	}

	check_decode(user, session);

	if (user) {
		switch_channel_set_variable(channel, user_var, user);
	}


	if (port) {
		switch_snprintf(new_port, sizeof(new_port), ":%s", port);
	}

	switch_channel_set_variable(channel, port_var, port);
	if (host) {
		if (user) {
			uri = switch_core_session_sprintf(session, "%s@%s%s", user, host, new_port);
		} else {
			uri = switch_core_session_sprintf(session, "%s%s", host, new_port);
		}
		switch_channel_set_variable(channel, uri_var, uri);
		switch_channel_set_variable(channel, host_var, host);
	}

	return uri;
}

void sofia_handle_sip_i_invite(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[])
{
	switch_core_session_t *session = NULL;
	char key[128] = "";
	sip_unknown_t *un;
	sip_remote_party_id_t *rpid = NULL;
	sip_p_asserted_identity_t *passerted = NULL;
	sip_p_preferred_identity_t *ppreferred = NULL;
	sip_alert_info_t *alert_info = NULL;
	private_object_t *tech_pvt = NULL;
	switch_channel_t *channel = NULL;
	const char *channel_name = NULL;
	const char *displayname = NULL;
	const char *destination_number = NULL;
	const char *from_user = NULL, *from_host = NULL;
	const char *referred_by_user = NULL, *referred_by_host = NULL;
	const char *context = NULL;
	const char *dialplan = NULL;
	char network_ip[80];
	switch_event_t *v_event = NULL;
	uint32_t sess_count = switch_core_session_count();
	uint32_t sess_max = switch_core_session_limit(0);
	int is_auth = 0, calling_myself = 0;
	su_addrinfo_t *my_addrinfo = msg_addrinfo(nua_current_request(nua));
	int network_port = 0;
	char *is_nat = NULL;

	if (sess_count >= sess_max || !(profile->pflags & PFLAG_RUNNING)) {
		nua_respond(nh, 503, "Maximum Calls In Progress", SIPTAG_RETRY_AFTER_STR("300"), TAG_END());
		return;
	}

	if (!sip || !sip->sip_request || !sip->sip_request->rq_method_name) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Received an invalid packet!\n");
		nua_respond(nh, SIP_503_SERVICE_UNAVAILABLE, TAG_END());
		return;
	}
	
	get_addr(network_ip, sizeof(network_ip), &((struct sockaddr_in *) my_addrinfo->ai_addr)->sin_addr);
	network_port = ntohs(((struct sockaddr_in *) msg_addrinfo(nua_current_request(nua))->ai_addr)->sin_port);

	if ((profile->pflags & PFLAG_AGGRESSIVE_NAT_DETECTION)) {
		if (sip && sip->sip_via) {
			const char *port = sip->sip_via->v_port;
			const char *host = sip->sip_via->v_host;
			
			if (host && sip->sip_via->v_received) {
				is_nat = "via received";
			} else if (host && strcmp(network_ip, host)) {
				is_nat = "via host";
			} else if (port && atoi(port) != network_port) {
				is_nat = "via port";
			}
		}
	}

	if (!is_nat && profile->nat_acl_count) {
		uint32_t x = 0;
		int ok = 1;
		char *last_acl = NULL;
		const char *contact_host = NULL;

		if (sip && sip->sip_contact && sip->sip_contact->m_url) {
			contact_host = sip->sip_contact->m_url->url_host;
		}

		if (!switch_strlen_zero(contact_host)) {
			for (x = 0 ; x < profile->nat_acl_count; x++) {
				last_acl = profile->nat_acl[x];
				if (!(ok = switch_check_network_list_ip(contact_host, last_acl))) {
					break;
				}
			}
			
			if (ok) {
				is_nat = last_acl;
			}
		}
	}

	if (profile->acl_count) {
		uint32_t x = 0;
		int ok = 1;
		char *last_acl = NULL;

		for (x = 0 ; x < profile->acl_count; x++) {
			last_acl = profile->acl[x];
			if (!(ok = switch_check_network_list_ip(network_ip, last_acl))) {
				break;
			}
		}

		if (ok) {
			if ((profile->pflags & PFLAG_AUTH_CALLS)) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "IP %s Approved by acl %s. Access Granted.\n", 
								  network_ip, switch_str_nil(last_acl));
				is_auth = 1;
			}
		} else {
			if (!(profile->pflags & PFLAG_AUTH_CALLS)) {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "IP %s Rejected by acl %s\n", network_ip, switch_str_nil(last_acl));
				nua_respond(nh, SIP_403_FORBIDDEN, TAG_END());
				return;
			} else {
				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "IP %s Rejected by acl %s. Falling back to Digest auth.\n", 
								  network_ip, switch_str_nil(last_acl));
			}
		}
	}
	
	if (!is_auth && 
		((profile->pflags & PFLAG_AUTH_CALLS) || (!(profile->pflags & PFLAG_BLIND_AUTH) && (sip->sip_proxy_authorization || sip->sip_authorization)))) {
		if (!strcmp(network_ip, profile->sipip) && network_port == profile->sip_port) {
			calling_myself++;
		} else {
			if (sofia_reg_handle_register(nua, profile, nh, sip, REG_INVITE, key, sizeof(key), &v_event, NULL)) {
				if (v_event) {
					switch_event_destroy(&v_event);
				}
				return;
			}
		}
		is_auth++;
	}

	if (!(sip->sip_contact && sip->sip_contact->m_url)) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "NO CONTACT!\n");
		nua_respond(nh, 400, "Missing Contact Header", TAG_END());
		return;
	}

	if (!sofia_endpoint_interface || !(session = switch_core_session_request(sofia_endpoint_interface, NULL))) {
		nua_respond(nh, 503, "Maximum Calls In Progress", SIPTAG_RETRY_AFTER_STR("300"), TAG_END());
		return;
	}

	if (!(tech_pvt = (private_object_t *) switch_core_session_alloc(session, sizeof(private_object_t)))) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Hey where is my memory pool?\n");
		nua_respond(nh, SIP_503_SERVICE_UNAVAILABLE, TAG_END());
		switch_core_session_destroy(&session);
		return;
	}


	switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));

	tech_pvt->remote_ip = switch_core_session_strdup(session, network_ip);
	tech_pvt->remote_port = network_port;

	channel = tech_pvt->channel = switch_core_session_get_channel(session);

	if (sip->sip_contact && sip->sip_contact->m_url) {
		char tmp[35] = "";
		tech_pvt->record_route = switch_core_session_sprintf(session, "sip:%s@%s:%d", 
															 sip->sip_contact->m_url->url_user, 
															 tech_pvt->remote_ip,
															 tech_pvt->remote_port);
		switch_channel_set_variable(channel, "sip_received_ip", tech_pvt->remote_ip);
		snprintf(tmp, sizeof(tmp), "%d", tech_pvt->remote_port);
		switch_channel_set_variable(channel, "sip_received_port", tmp);
	}

	if (*key != '\0') {
		tech_pvt->key = switch_core_session_strdup(session, key);
	}

	
	if (is_auth) {
		switch_channel_set_variable(channel, "sip_authorized", "true");
	}

	if (calling_myself) {
		switch_channel_set_variable(channel, "sip_looped_call", "true");
	}

	if (v_event) {
		switch_event_header_t *hp;
		
		for(hp = v_event->headers; hp; hp = hp->next) {
			switch_channel_set_variable(channel, hp->name, hp->value);
		}
		switch_event_destroy(&v_event);
	}

	if (sip->sip_from && sip->sip_from->a_url) {
		from_user = sip->sip_from->a_url->url_user;
		from_host = sip->sip_from->a_url->url_host;
		channel_name = url_set_chanvars(session, sip->sip_from->a_url, sip_from);

		if (!switch_strlen_zero(from_user)) {
			if (*from_user == '+') {
				switch_channel_set_variable(channel, "sip_from_user_stripped", (const char *) (from_user + 1));
			} else {
				switch_channel_set_variable(channel, "sip_from_user_stripped", from_user);
			}
		}

		switch_channel_set_variable(channel, "sip_from_comment", sip->sip_from->a_comment);

		if (sip->sip_from->a_params) {
			set_variable_sip_param(channel, "from", sip->sip_from->a_params);
		}

		switch_channel_set_variable(channel, "sofia_profile_name", profile->name);
		switch_channel_set_variable(channel, "sofia_profile_domain_name", profile->domain_name);

		if (!switch_strlen_zero(sip->sip_from->a_display)) {
			displayname = sip->sip_from->a_display;
		} else {
			displayname = switch_strlen_zero(from_user) ? "unknown" : from_user;
		}
	}

	if ((rpid = sip_remote_party_id(sip))) {
		if (rpid->rpid_url && rpid->rpid_url->url_user) {
			from_user = rpid->rpid_url->url_user;
		}
		if (!switch_strlen_zero(rpid->rpid_display)) {
			displayname = rpid->rpid_display;
		}
	}

	if ((passerted = sip_p_asserted_identity(sip))) {
		if (passerted->paid_url && passerted->paid_url->url_user) {
			from_user = passerted->paid_url->url_user;
		}
		if (!switch_strlen_zero(passerted->paid_display)) {
			displayname = passerted->paid_display;
		}
	}

	if ((ppreferred = sip_p_preferred_identity(sip))) {
		if (ppreferred->ppid_url && ppreferred->ppid_url->url_user) {
			from_user = ppreferred->ppid_url->url_user;
		}
		if (!switch_strlen_zero(ppreferred->ppid_display)) {
			displayname = ppreferred->ppid_display;
		}
	}

	if (from_user) {
		check_decode(from_user, session);
	}

	if (sip->sip_request->rq_url) {
		const char *req_uri = url_set_chanvars(session, sip->sip_request->rq_url, sip_req);
		if (profile->pflags & PFLAG_FULL_ID) {
			destination_number = req_uri;
		} else {
			destination_number = sip->sip_request->rq_url->url_user;
		}
		check_decode(destination_number, session);
	}

	if (sip->sip_to && sip->sip_to->a_url) {
		const char *host, *user;
		int port;
		sofia_transport_t transport;
		url_t *transport_url;

		if (sip->sip_record_route && sip->sip_record_route->r_url) {
			transport_url = sip->sip_record_route->r_url;
		} else {
			transport_url = sip->sip_contact->m_url;
		}

		transport = sofia_glue_url2transport(transport_url);
		tech_pvt->transport = transport;

		url_set_chanvars(session, sip->sip_to->a_url, sip_to);
		if (switch_channel_get_variable(channel, "sip_to_uri")) {

			host = switch_channel_get_variable(channel, "sip_to_host");
			user = switch_channel_get_variable(channel, "sip_to_user");
		
			switch_channel_set_variable(channel, "sip_to_comment", sip->sip_to->a_comment);

			if (sip->sip_to->a_params) {
				set_variable_sip_param(channel, "to", sip->sip_to->a_params);
			}

			if (sip->sip_contact->m_url->url_port) {
				port = atoi(sip->sip_contact->m_url->url_port);
			} else {
				port = sofia_glue_transport_has_tls(transport) ? profile->tls_sip_port : profile->sip_port;
			}

			tech_pvt->to_uri = switch_core_session_sprintf(session, "sip:%s@%s:%d;transport=%s",
						 user, host, port, sofia_glue_transport2str(transport));

			if (profile->ndlb & PFLAG_NDLB_TO_IN_200_CONTACT) {
				if (strchr(tech_pvt->to_uri, '>')) {
					tech_pvt->reply_contact = tech_pvt->to_uri;
				} else {
					tech_pvt->reply_contact = switch_core_session_sprintf(session, "<%s>", tech_pvt->to_uri);
				}
			} else {
				const char *url;

				if ((url = (sofia_glue_transport_has_tls(transport)) ? profile->tls_url : profile->url)) {
					if (strchr(url, '>')) {
						tech_pvt->reply_contact = switch_core_session_sprintf(session, "%s;transport=%s", url, sofia_glue_transport2str(transport));
					} else {
						tech_pvt->reply_contact = switch_core_session_sprintf(session, "<%s;transport=%s>", url, sofia_glue_transport2str(transport));
					}
				} else {
					switch_channel_hangup(tech_pvt->channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
				}
			}
		} else {
			const char *url;

			if ((url = (sofia_glue_transport_has_tls(transport)) ? profile->tls_url : profile->url)) {
				if (strchr(url, '>')) {
					tech_pvt->reply_contact = switch_core_session_sprintf(session, "%s;transport=%s", url, sofia_glue_transport2str(transport));
				} else {
					tech_pvt->reply_contact = switch_core_session_sprintf(session, "<%s;transport=%s>", url, sofia_glue_transport2str(transport));
				}
			} else {
				switch_channel_hangup(tech_pvt->channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
			}
		}
	}

	if (sip->sip_contact && sip->sip_contact->m_url) {
		const char *contact_uri = url_set_chanvars(session, sip->sip_contact->m_url, sip_contact);
		if (!channel_name) {
			channel_name = contact_uri;
		}
	}

	if (sip->sip_referred_by) {
		referred_by_user = sip->sip_referred_by->b_url->url_user;
		referred_by_host = sip->sip_referred_by->b_url->url_host;
		channel_name = url_set_chanvars(session, sip->sip_referred_by->b_url, sip_referred_by);

		check_decode(referred_by_user, session);

		if (!switch_strlen_zero(referred_by_user)) {
			if (*referred_by_user == '+') {
				switch_channel_set_variable(channel, "sip_referred_by_user_stripped", (const char *) (referred_by_user + 1));
			} else {
				switch_channel_set_variable(channel, "sip_referred_by_user_stripped", referred_by_user);
			}
		}

		switch_channel_set_variable(channel, "sip_referred_by_cid", sip->sip_referred_by->b_cid);

		if (sip->sip_referred_by->b_params) {
			set_variable_sip_param(channel, "referred_by", sip->sip_referred_by->b_params);
		}
	}

	sofia_glue_attach_private(session, profile, tech_pvt, channel_name);
	sofia_glue_tech_prepare_codecs(tech_pvt);

	switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "INBOUND CALL");

	if (switch_test_flag(tech_pvt, TFLAG_INB_NOMEDIA)) {
		switch_channel_set_flag(channel, CF_PROXY_MODE);
	}

	if (switch_test_flag(tech_pvt, TFLAG_PROXY_MEDIA)) {
		switch_channel_set_flag(channel, CF_PROXY_MEDIA);
	}

	if (!tech_pvt->call_id && sip->sip_call_id && sip->sip_call_id->i_id) {
		tech_pvt->call_id = switch_core_session_strdup(session, sip->sip_call_id->i_id);
		switch_channel_set_variable(channel, "sip_call_id", tech_pvt->call_id);
	}

	if (sip->sip_subject && sip->sip_subject->g_string) {
		switch_channel_set_variable(channel, "sip_subject", sip->sip_subject->g_string);
	}
	
	if (sip->sip_user_agent && !switch_strlen_zero(sip->sip_user_agent->g_string)){
		switch_channel_set_variable(channel, "sip_user_agent", sip->sip_user_agent->g_string);
	}

	if (sip->sip_via) {
		if (sip->sip_via->v_host) {
			switch_channel_set_variable(channel, "sip_via_host", sip->sip_via->v_host);
		}
		if (sip->sip_via->v_port) {
			switch_channel_set_variable(channel, "sip_via_port", sip->sip_via->v_port);
		}
		if (sip->sip_via->v_rport) {
			switch_channel_set_variable(channel, "sip_via_rport", sip->sip_via->v_rport);
		}
	}

	if (sip->sip_max_forwards) {
		char max_forwards[32];
		switch_snprintf(max_forwards, sizeof(max_forwards), "%lu", sip->sip_max_forwards->mf_count);
		switch_channel_set_variable(channel, SWITCH_MAX_FORWARDS_VARIABLE, max_forwards);
	}

	if (sip->sip_request->rq_url) {
		sofia_gateway_t *gateway;
		char *from_key;
		char *user = (char *) sip->sip_request->rq_url->url_user;
		check_decode(user, session);
		from_key = switch_core_session_sprintf(session, "sip:%s@%s", user, sip->sip_request->rq_url->url_host);

		if ((gateway = sofia_reg_find_gateway(from_key))) {
			context = gateway->register_context;
			switch_channel_set_variable(channel, "sip_gateway", gateway->name);
			sofia_reg_release_gateway(gateway);
		}
	}

	if (!context) {
		context = switch_channel_get_variable(channel, "user_context");
	}

	if (!context) {
		if (profile->context && !strcasecmp(profile->context, "_domain_")) {
			context = from_host;
		} else {
			context = profile->context;
		}
	}

	if (!(dialplan = switch_channel_get_variable(channel, "inbound_dialplan"))) {
		dialplan = profile->dialplan;
	}

	if ((alert_info = sip_alert_info(sip))) {
		char *tmp = sip_header_as_string(profile->home, (void *) alert_info);
		switch_channel_set_variable(channel, "alert_info", tmp);
		su_free(profile->home, tmp);
	}

	if (sofia_test_pflag(profile, PFLAG_PRESENCE)) {
		const char *user = switch_str_nil(sip->sip_from->a_url->url_user);
		const char *host = switch_str_nil(sip->sip_from->a_url->url_host);

		char *tmp = switch_mprintf("%s@%s", user, host);
		switch_assert(tmp);
		switch_channel_set_variable(channel, "presence_id", tmp);
		free(tmp);
	}

	check_decode(displayname, session);
	tech_pvt->caller_profile = switch_caller_profile_new(switch_core_session_get_pool(session),
														 from_user,
														 dialplan,
														 displayname,
														 from_user,
														 network_ip,
														 NULL, NULL, NULL, MODNAME, context, destination_number);

	if (tech_pvt->caller_profile) {

		if (rpid) {
			if (rpid->rpid_privacy) {
				if (!strcasecmp(rpid->rpid_privacy, "yes")) {
					switch_set_flag(tech_pvt->caller_profile, SWITCH_CPF_HIDE_NAME | SWITCH_CPF_HIDE_NUMBER);
				} else if (!strcasecmp(rpid->rpid_privacy, "full")) {
					switch_set_flag(tech_pvt->caller_profile, SWITCH_CPF_HIDE_NAME | SWITCH_CPF_HIDE_NUMBER);
				} else if (!strcasecmp(rpid->rpid_privacy, "name")) {
					switch_set_flag(tech_pvt->caller_profile, SWITCH_CPF_HIDE_NAME);
				} else if (!strcasecmp(rpid->rpid_privacy, "number")) {
					switch_set_flag(tech_pvt->caller_profile, SWITCH_CPF_HIDE_NUMBER);
				} else {
					switch_clear_flag(tech_pvt->caller_profile, SWITCH_CPF_HIDE_NAME);
					switch_clear_flag(tech_pvt->caller_profile, SWITCH_CPF_HIDE_NUMBER);
				}
			} 
			
			if (rpid->rpid_screen && !strcasecmp(rpid->rpid_screen, "no")) {
				switch_clear_flag(tech_pvt->caller_profile, SWITCH_CPF_SCREEN);
			}
		}

		/* Loop thru unknown Headers Here so we can do something with them */
		for (un = sip->sip_unknown; un; un = un->un_next) {
			if (!strncasecmp(un->un_name, "Diversion", 9)) {
				/* Basic Diversion Support for Diversion Indication in SIP */
				/* draft-levy-sip-diversion-08 */
				if (!switch_strlen_zero(un->un_value)) {
					char *tmp_name;
					if ((tmp_name = switch_mprintf("%s%s", SOFIA_SIP_HEADER_PREFIX, un->un_name))) {
						switch_channel_set_variable(channel, tmp_name, un->un_value);
						free(tmp_name);
					}
				}
			} else if (!strncasecmp(un->un_name, "X-", 2) || !strncasecmp(un->un_name, "P-", 2)) {
				if (!switch_strlen_zero(un->un_value)) {
					char *new_name;
					if ((new_name = switch_mprintf("%s%s", SOFIA_SIP_HEADER_PREFIX, un->un_name))) {
						switch_channel_set_variable(channel, new_name, un->un_value);
						free(new_name);
					}
				}
			}
		}

		switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
	}

	if (!(sofia_private = malloc(sizeof(*sofia_private)))) {
		abort();
	}
	memset(sofia_private, 0, sizeof(*sofia_private));
	tech_pvt->sofia_private = sofia_private;
	
	if ((profile->pflags & PFLAG_PRESENCE)) {
		sofia_presence_set_chat_hash(tech_pvt, sip);
	}
	switch_copy_string(tech_pvt->sofia_private->uuid, switch_core_session_get_uuid(session), sizeof(tech_pvt->sofia_private->uuid));
	nua_handle_bind(nh, tech_pvt->sofia_private);
	tech_pvt->nh = nh;

	if (sip && switch_core_session_thread_launch(session) == SWITCH_STATUS_SUCCESS) {
		const char *dialog_from_user = "", *dialog_from_host = "", *to_user = "", *to_host = "", *contact_user = "", *contact_host = "";
		const char *user_agent = "", *call_id = "";
		url_t *from = NULL, *to = NULL, *contact = NULL;
		char *sql = NULL;

		if (sip->sip_to) {
			to = sip->sip_to->a_url;
		}
		if (sip->sip_from) {
			from = sip->sip_from->a_url;
		}
		if (sip->sip_contact) {
			contact = sip->sip_contact->m_url;
		}

		if (sip->sip_user_agent) {
			user_agent = switch_str_nil(sip->sip_user_agent->g_string);
		}

		if (sip->sip_call_id) {
			call_id = switch_str_nil(sip->sip_call_id->i_id);
		}

		if (to) {
			to_user = switch_str_nil(to->url_user);
			to_host = switch_str_nil(to->url_host);
		}

		if (from) {
			dialog_from_user = switch_str_nil(from->url_user);
			dialog_from_host = switch_str_nil(from->url_host);
		}

		if (contact) {
			contact_user = switch_str_nil(contact->url_user);
			contact_host = switch_str_nil(contact->url_host);
		}


		if (profile->pflags & PFLAG_PRESENCE) {

			sql = switch_mprintf(
								 "insert into sip_dialogs values('%q','%q','%q','%q','%q','%q','%q','%q','%q','%q','%q')",
								 call_id,
								 tech_pvt->sofia_private->uuid,
								 to_user,
								 to_host,
								 dialog_from_user,
								 dialog_from_host,
								 contact_user,
								 contact_host,
								 "confirmed",
								 "inbound",
								 user_agent
								 );
			
			switch_assert(sql);
			sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
		}

		if (is_nat) {
			switch_set_flag(tech_pvt, TFLAG_NAT);
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Setting NAT mode based on %s\n", is_nat);
			switch_channel_set_variable(channel, "sip_nat_detected", "true");
		}
		
		return;
	}

	if (sess_count > 110) {
		switch_mutex_lock(profile->flag_mutex);
		switch_core_session_limit(sess_count - 10);
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "LUKE: I'm hit, but not bad.\n");
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "LUKE'S VOICE: Artoo, see what you can do with it. Hang on back there....\n"
						  "Green laserfire moves past the beeping little robot as his head turns.  "
						  "After a few beeps and a twist of his mechanical arm,\n"
						  "Artoo reduces the max sessions to %d thus, saving the switch from certian doom.\n", 
						  sess_count - 10);

		switch_mutex_unlock(profile->flag_mutex);
	}

	if (tech_pvt->hash_key) {
		switch_core_hash_delete(tech_pvt->profile->chat_hash, tech_pvt->hash_key);
	}

	nua_handle_bind(nh, NULL);
	free(tech_pvt->sofia_private);
	switch_core_session_destroy(&session);
	nua_respond(nh, 503, "Maximum Calls In Progress", SIPTAG_RETRY_AFTER_STR("300"), TAG_END());
}

void sofia_handle_sip_i_options(int status,
						  char const *phrase,
						  nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sofia_private_t *sofia_private, sip_t const *sip, tagi_t tags[])
{
	nua_respond(nh, SIP_200_OK,
				NUTAG_WITH_THIS(nua),
				TAG_END());
}

static void sofia_info_send_sipfrag(switch_core_session_t *aleg, switch_core_session_t *bleg)
{
	private_object_t *b_tech_pvt = NULL, *a_tech_pvt = NULL;
	char message[256] = "";

	if (aleg && bleg && switch_core_session_compare(aleg, bleg)) {
		a_tech_pvt = (private_object_t *) switch_core_session_get_private(aleg);
		b_tech_pvt = (private_object_t *) switch_core_session_get_private(bleg);
		
		if (b_tech_pvt && a_tech_pvt && a_tech_pvt->caller_profile) {
			switch_caller_profile_t *acp = a_tech_pvt->caller_profile;

			if (switch_strlen_zero(acp->caller_id_name)) {
				snprintf(message, sizeof(message), "From:\r\nTo: %s\r\n", acp->caller_id_number);
			} else {
				snprintf(message, sizeof(message), "From:\r\nTo: \"%s\" %s\r\n", acp->caller_id_name, acp->caller_id_number);
			}
			nua_info(b_tech_pvt->nh, SIPTAG_CONTENT_TYPE_STR("message/sipfrag"), SIPTAG_PAYLOAD_STR(message), TAG_END());
		}
	}
}

/*
 * This subroutine will take the a_params of a sip_addr_s structure and spin through them.
 * Each param will be used to create a channel variable.
 * In the SIP RFC's, this data is called generic-param.
 * Note that the tag-param is also included in the a_params list.
 *
 * From: "John Doe" <sip:5551212@1.2.3.4>;tag=ed23266b52cbb17eo2;ref=101;mbid=201
 *
 * For example, the header above will produce an a_params list with three entries
 *    tag=ed23266b52cbb17eo2
 *    ref=101
 *    mbid=201
 *
 * The a_params list is parsed and the lvalue is used to create the channel variable name while the
 * rvalue is used to create the channel variable value. 
 *
 * If no equal (=) sign is found during parsing, a channel variable name is created with the param and
 * the value is set to NULL.
 *
 * Pointers are used for copying the sip_header_name for performance reasons.  There are no calls to
 * any string functions and no memory is allocated/dealocated.  The only limiter is the size of the
 * sip_header_name array. 
*/
static void set_variable_sip_param(switch_channel_t *channel, char *header_type, sip_param_t const *params)
{
	char sip_header_name[128] = "";
	char var1[] = "sip_";
	char *cp, *sh, *sh_end, *sh_save;

	/* Build the static part of the sip_header_name variable from	*/
	/* the header_type. If the header type is "referred_by" then	*/
	/* sip_header_name = "sip_referred_by_".			*/
	sh = sip_header_name;
	sh_end = sh + sizeof(sip_header_name) - 1;
	for (cp=var1; *cp; cp++, sh++) {
		*sh = *cp;
	}
	*sh = '\0';

	/* Copy the header_type to the sip_header_name. Before copying 	*/
	/* each character, check that we aren't going to overflow the   */
	/* the sip_header_name buffer.  We have to account for the 	*/
	/* trailing underscore and NULL that will be added to the end.	*/
	for (cp=header_type; (*cp && (sh < (sh_end-1))); cp++, sh++) {
		*sh = *cp;
	}
	*sh++ = '_';
	*sh = '\0';

	/* sh now points to the NULL at the end of the partially built	*/
	/* sip_header_name variable.  This is also the start of the     */
	/* variable part of the sip_header_name built from the lvalue   */
	/* of the parms data.                                           */
	sh_save = sh;

	while (params && params[0]) {

		/* Copy the params data to the sip_header_name variable until	*/
		/* the end of the params string is reached, an '=' is detected	*/
		/* or until the sip_header_name buffer has been exhausted.	*/
		for (cp=(char *)(*params); ((*cp != '=') && *cp && (sh < sh_end)); cp++, sh++) {
			*sh = *cp;
		}

		/* cp now points to either the end of the parms data or the	*/
		/* equal (=) sign spearating the lvalue and rvalue.		*/
		if (*cp == '=')
			cp++;	
		*sh = '\0';
		switch_channel_set_variable(channel, sip_header_name, cp);

		/* Bump pointer to next param in the list.  Also reset the	*/
		/* sip_header_name pointer to the beginning of the dynamic area */
		params++;
		sh = sh_save;
	}
}

/* For Emacs:
 * Local Variables:
 * mode:c
 * indent-tabs-mode:t
 * tab-width:4
 * c-basic-offset:4
 * End:
 * For VIM:
 * vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
 */
