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freeswitch/src/mod/endpoints/mod_sofia/mod_sofia.c
Brian West a31eb82d0b small tweak 
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@2439 d0543943-73ff-0310-b7d9-9358b9ac24b2
2006-08-30 02:38:32 +00:00

1795 lines
54 KiB
C
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/*
* 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>
*
*
* mod_sofia.c -- SOFIA SIP Endpoint
*
*/
/* Best viewed in a 160 x 60 VT100 Terminal or so the line below at least fits across your screen*/
/*************************************************************************************************************************************************************/
/*Defines etc..*/
/*************************************************************************************************************************************************************/
#define HAVE_APR
#include <switch.h>
struct sofia_profile;
typedef struct sofia_profile sofia_profile_t;
#define NUA_MAGIC_T sofia_profile_t
struct private_object;
typedef struct private_object private_object_t;
#define NUA_HMAGIC_T switch_core_session_t
#define MY_EVENT_REGISTER "sofia::register"
#define MY_EVENT_EXPIRE "sofia::expire"
#include <sofia-sip/nua.h>
#include <sofia-sip/sip_status.h>
#include <sofia-sip/sdp.h>
#include <sofia-sip/sip_protos.h>
#define DBFILE "sofia"
static const char modname[] = "mod_sofia";
#define STRLEN 15
static switch_memory_pool_t *module_pool = NULL;
#define set_param(ptr,val) if (ptr) {free(ptr) ; ptr = NULL;} if (val) {ptr = strdup(val);}
#define set_anchor(t,m) if (t->Anchor) {delete t->Anchor;} t->Anchor = new SipMessage(m);
/* Local Structures */
/*************************************************************************************************************************************************************/
struct sip_alias_node {
char *url;
nua_t *nua;
struct sip_alias_node *next;
};
typedef struct sip_alias_node sip_alias_node_t;
typedef enum {
TFLAG_IO = (1 << 0),
TFLAG_INBOUND = (1 << 1),
TFLAG_OUTBOUND = (1 << 2),
TFLAG_READING = (1 << 3),
TFLAG_WRITING = (1 << 4),
TFLAG_HUP = (1 << 5),
TFLAG_RTP = (1 << 6),
TFLAG_BYE = (1 << 7),
TFLAG_ANS = (1 << 8),
TFLAG_EARLY_MEDIA = (1 << 9),
TFLAG_SECURE = (1 << 10),
TFLAG_VAD_IN = ( 1 << 11),
TFLAG_VAD_OUT = ( 1 << 12),
TFLAG_VAD = ( 1 << 13),
TFLAG_TIMER = (1 << 14),
TFLAG_READY = (1 << 15)
} TFLAGS;
static struct {
switch_hash_t *profile_hash;
switch_mutex_t *hash_mutex;
uint32_t callid;
} globals;
struct sofia_profile {
int debug;
char *name;
char *dialplan;
char *context;
char *extrtpip;
char *rtpip;
char *sipip;
char *extsipip;
char *username;
char *url;
char *sipdomain;
int sip_port;
char *codec_string;
char *codec_order[SWITCH_MAX_CODECS];
int codec_order_last;
int running;
int codec_ms;
int dtmf_duration;
unsigned int flags;
uint32_t max_calls;
nua_t *nua;
switch_memory_pool_t *pool;
su_root_t *s_root;
sip_alias_node_t *aliases;
switch_payload_t te;
};
struct private_object {
uint32_t flags;
switch_core_session_t *session;
switch_frame_t read_frame;
const switch_codec_implementation_t *codecs[SWITCH_MAX_CODECS];
int num_codecs;
switch_codec_t read_codec;
switch_codec_t write_codec;
uint32_t codec_index;
uint32_t codec_rate;
uint32_t codec_ms;
switch_caller_profile_t *caller_profile;
int32_t timestamp_send;
int32_t timestamp_recv;
switch_rtp_t *rtp_session;
int ssrc;
switch_time_t last_read;
sofia_profile_t *profile;
char *local_sdp_audio_ip;
switch_port_t local_sdp_audio_port;
char *remote_sdp_audio_ip;
switch_port_t remote_sdp_audio_port;
char *adv_sdp_audio_ip;
switch_port_t adv_sdp_audio_port;
char *from_uri;
char *to_uri;
char *from_address;
char *to_address;
char *callid;
char *far_end_contact;
char *contact_url;
char *rm_encoding;
char *remote_sdp_str;
char *local_sdp_str;
char *dest;
unsigned long rm_rate;
switch_payload_t pt;
switch_mutex_t *flag_mutex;
switch_payload_t te;
nua_handle_t *nh;
su_home_t *home;
sip_contact_t *contact;
};
/* Function Prototypes */
/*************************************************************************************************************************************************************/
static switch_status_t sofia_on_init(switch_core_session_t *session);
static switch_status_t sofia_on_hangup(switch_core_session_t *session);
static switch_status_t sofia_on_loopback(switch_core_session_t *session);
static switch_status_t sofia_on_transmit(switch_core_session_t *session);
static switch_status_t sofia_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
switch_core_session_t **new_session, switch_memory_pool_t *pool);
static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout,
switch_io_flag_t flags, int stream_id);
static switch_status_t sofia_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout,
switch_io_flag_t flags, int stream_id);
static switch_status_t config_sofia(int reload);
static switch_status_t sofia_kill_channel(switch_core_session_t *session, int sig);
static switch_status_t activate_rtp(private_object_t *tech_pvt);
static void deactivate_rtp(private_object_t *tech_pvt);
static void set_local_sdp(private_object_t *tech_pvt);
static void tech_set_codecs(private_object_t *tech_pvt);
static void attach_private(switch_core_session_t *session,
sofia_profile_t *profile,
private_object_t *tech_pvt,
char *channame);
static void terminate_session(switch_core_session_t **session, switch_call_cause_t cause, int line);
static switch_status_t tech_choose_port(private_object_t *tech_pvt);
static void do_invite(switch_core_session_t *session);
static uint8_t negotiate_sdp(switch_core_session_t *session, sdp_session_t *sdp);
static void sip_i_state(int status,
char const *phrase,
nua_t *nua,
sofia_profile_t *profile,
nua_handle_t *nh,
switch_core_session_t *session,
sip_t const *sip,
tagi_t tags[]);
static void sip_i_invite(nua_t *nua,
sofia_profile_t *profile,
nua_handle_t *nh,
switch_core_session_t *session,
sip_t const *sip,
tagi_t tags[]);
static void event_callback(nua_event_t event,
int status,
char const *phrase,
nua_t *nua,
sofia_profile_t *profile,
nua_handle_t *nh,
switch_core_session_t *session,
sip_t const *sip,
tagi_t tags[]);
static void *SWITCH_THREAD_FUNC profile_thread_run(switch_thread_t *thread, void *obj);
static void launch_profile_thread(sofia_profile_t *profile);
static switch_status_t config_sofia(int reload);
/* BODY OF THE MODULE */
/*************************************************************************************************************************************************************/
static void set_local_sdp(private_object_t *tech_pvt)
{
char buf[1024];
switch_time_t now = switch_time_now();
assert(tech_pvt != NULL);
snprintf(buf, sizeof(buf),
"v=0\n"
"o=FreeSWITCH %d%"APR_TIME_T_FMT" %d%"APR_TIME_T_FMT" IN IP4 %s\n"
"s=FreeSWITCH\n"
"c=IN IP4 %s\n"
"t=0 0\n"
"a=sendrecv\n"
"m=audio %d RTP/AVP",
tech_pvt->adv_sdp_audio_port,
now,
tech_pvt->adv_sdp_audio_port,
now,
tech_pvt->adv_sdp_audio_ip,
tech_pvt->adv_sdp_audio_ip,
tech_pvt->adv_sdp_audio_port
);
if (tech_pvt->rm_encoding) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", tech_pvt->pt);
} else if (tech_pvt->num_codecs) {
int i;
for (i = 0; i < tech_pvt->num_codecs; i++) {
const switch_codec_implementation_t *imp = tech_pvt->codecs[i];
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", imp->ianacode);
}
}
if (tech_pvt->te > 96) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %d", tech_pvt->te);
}
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "\n");
if (tech_pvt->rm_encoding) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d %s/%ld\n", tech_pvt->pt, tech_pvt->rm_encoding, tech_pvt->rm_rate);
} else if (tech_pvt->num_codecs) {
int i;
for (i = 0; i < tech_pvt->num_codecs; i++) {
const switch_codec_implementation_t *imp = tech_pvt->codecs[i];
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d %s/%d\n", imp->ianacode, imp->iananame, imp->samples_per_second);
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=ptime:%d", imp->microseconds_per_frame / 1000);
}
}
if (tech_pvt->te > 96) {
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "a=rtpmap:%d telephone-event/8000\na=fmtp:%d 0-16", tech_pvt->te, tech_pvt->te);
}
tech_pvt->local_sdp_str = switch_core_session_strdup(tech_pvt->session, buf);
}
static void tech_set_codecs(private_object_t *tech_pvt)
{
if (tech_pvt->num_codecs) {
return;
}
if (tech_pvt->profile->codec_string) {
tech_pvt->num_codecs = switch_loadable_module_get_codecs_sorted(tech_pvt->codecs,
SWITCH_MAX_CODECS,
tech_pvt->profile->codec_order,
tech_pvt->profile->codec_order_last);
} else {
tech_pvt->num_codecs = switch_loadable_module_get_codecs(switch_core_session_get_pool(tech_pvt->session), tech_pvt->codecs,
sizeof(tech_pvt->codecs) / sizeof(tech_pvt->codecs[0]));
}
}
static void attach_private(switch_core_session_t *session,
sofia_profile_t *profile,
private_object_t *tech_pvt,
char *channame)
{
switch_channel_t *channel;
char name[256];
assert(session != NULL);
assert(profile != NULL);
assert(tech_pvt != NULL);
switch_core_session_add_stream(session, NULL);
channel = switch_core_session_get_channel(session);
switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_mutex_lock(tech_pvt->flag_mutex);
tech_pvt->flags = profile->flags;
switch_mutex_unlock(tech_pvt->flag_mutex);
tech_pvt->profile = profile;
tech_pvt->te = profile->te;
tech_pvt->session = session;
tech_pvt->home = su_home_new(sizeof(*tech_pvt->home));
su_home_init(tech_pvt->home);
switch_core_session_set_private(session, tech_pvt);
tech_set_codecs(tech_pvt);
snprintf(name, sizeof(name), "sofia/%s/%s", profile->name, channame);
switch_channel_set_name(channel, name);
}
static void terminate_session(switch_core_session_t **session, switch_call_cause_t cause, int line)
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Term called from line: %d\n", line);
if (*session) {
switch_channel_t *channel = switch_core_session_get_channel(*session);
switch_channel_state_t state = switch_channel_get_state(channel);
struct private_object *tech_pvt = NULL;
tech_pvt = switch_core_session_get_private(*session);
if (tech_pvt) {
if (state > CS_INIT && state < CS_HANGUP) {
switch_channel_hangup(channel, cause);
}
if (!switch_test_flag(tech_pvt, TFLAG_READY)) {
if (state > CS_INIT && state < CS_HANGUP) {
sofia_on_hangup(*session);
}
switch_core_session_destroy(session);
}
} else {
switch_core_session_destroy(session);
}
}
}
static switch_status_t tech_choose_port(private_object_t *tech_pvt)
{
char *ip = tech_pvt->profile->rtpip;
switch_port_t sdp_port;
char *err;
if (tech_pvt->adv_sdp_audio_port) {
return SWITCH_STATUS_SUCCESS;
}
tech_pvt->local_sdp_audio_ip = ip;
tech_pvt->local_sdp_audio_port = switch_rtp_request_port();
sdp_port = tech_pvt->local_sdp_audio_port;
if (tech_pvt->profile->extrtpip) {
if (!strncasecmp(tech_pvt->profile->extrtpip, "stun:", 5)) {
char *stun_ip = tech_pvt->profile->extrtpip + 5;
if (!stun_ip) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Stun Failed! NO STUN SERVER\n");
terminate_session(&tech_pvt->session, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
return SWITCH_STATUS_FALSE;
}
if (switch_stun_lookup(&ip,
&sdp_port,
stun_ip,
SWITCH_STUN_DEFAULT_PORT,
&err,
switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Stun Failed! %s:%d [%s]\n", stun_ip, SWITCH_STUN_DEFAULT_PORT, err);
terminate_session(&tech_pvt->session, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
return SWITCH_STATUS_FALSE;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Stun Success [%s]:[%d]\n", ip, sdp_port);
} else {
ip = tech_pvt->profile->extrtpip;
}
}
tech_pvt->adv_sdp_audio_ip = switch_core_session_strdup(tech_pvt->session, ip);
tech_pvt->adv_sdp_audio_port = sdp_port;
return SWITCH_STATUS_SUCCESS;
}
static void do_invite(switch_core_session_t *session)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
tech_choose_port(tech_pvt);
set_local_sdp(tech_pvt);
switch_set_flag_locked(tech_pvt, TFLAG_READY);
tech_pvt->nh = nua_handle(tech_pvt->profile->nua, NULL, SIPTAG_TO_STR(tech_pvt->dest), TAG_END());
nua_handle_bind(tech_pvt->nh, session);
nua_invite(tech_pvt->nh,
SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
SOATAG_RTP_SORT(SOA_RTP_SORT_REMOTE),
SOATAG_RTP_SELECT(SOA_RTP_SELECT_ALL),
TAG_END());
}
/*
State methods they get called when the state changes to the specific state
returning SWITCH_STATUS_SUCCESS tells the core to execute the standard state method next
so if you fully implement the state you can return SWITCH_STATUS_FALSE to skip it.
*/
static switch_status_t sofia_on_init(switch_core_session_t *session)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
tech_pvt->read_frame.buflen = SWITCH_RTP_MAX_BUF_LEN;
switch_channel_set_variable(channel, "endpoint_disposition", "INIT");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "SOFIA INIT\n");
if (switch_test_flag(tech_pvt, TFLAG_OUTBOUND)) {
do_invite(session);
}
/* Move Channel's State Machine to RING */
switch_channel_set_state(channel, CS_RING);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_on_ring(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_object_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_channel_set_variable(channel, "endpoint_disposition", "RING");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "SOFIA RING\n");
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_on_execute(switch_core_session_t *session)
{
switch_channel_t *channel = NULL;
private_object_t *tech_pvt = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_channel_set_variable(channel, "endpoint_disposition", "EXECUTE");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "SOFIA EXECUTE\n");
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_on_hangup(switch_core_session_t *session)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
deactivate_rtp(tech_pvt);
su_home_deinit(tech_pvt->home);
if (tech_pvt->nh) {
if (!switch_test_flag(tech_pvt, TFLAG_BYE)) {
nua_bye(tech_pvt->nh, TAG_END());
}
nua_handle_bind(tech_pvt->nh, NULL);
nua_handle_destroy(tech_pvt->nh);
tech_pvt->nh = NULL;
}
switch_set_flag_locked(tech_pvt, TFLAG_BYE);
switch_clear_flag_locked(tech_pvt, TFLAG_IO);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "SOFIA HANGUP\n");
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_on_loopback(switch_core_session_t *session)
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "SOFIA LOOPBACK\n");
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_on_transmit(switch_core_session_t *session)
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "SOFIA TRANSMIT\n");
return SWITCH_STATUS_SUCCESS;
}
static void deactivate_rtp(private_object_t *tech_pvt)
{
int loops = 0;//, sock = -1;
if (switch_rtp_ready(tech_pvt->rtp_session)) {
while (loops < 10 && (switch_test_flag(tech_pvt, TFLAG_READING) || switch_test_flag(tech_pvt, TFLAG_WRITING))) {
switch_yield(10000);
loops++;
}
switch_rtp_destroy(&tech_pvt->rtp_session);
tech_pvt->rtp_session = NULL;
}
}
static switch_status_t tech_set_codec(private_object_t *tech_pvt)
{
switch_channel_t *channel;
assert(tech_pvt->codecs[tech_pvt->codec_index] != NULL);
if (tech_pvt->read_codec.implementation) {
return SWITCH_STATUS_SUCCESS;
}
channel = switch_core_session_get_channel(tech_pvt->session);
assert(channel != NULL);
if (switch_core_codec_init(&tech_pvt->read_codec,
tech_pvt->rm_encoding,
tech_pvt->rm_rate,
tech_pvt->codec_ms,
1,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL,
switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
terminate_session(&tech_pvt->session, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
return SWITCH_STATUS_FALSE;
} else {
if (switch_core_codec_init(&tech_pvt->write_codec,
tech_pvt->rm_encoding,
tech_pvt->rm_rate,
tech_pvt->codec_ms,
1,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL,
switch_core_session_get_pool(tech_pvt->session)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't load codec?\n");
terminate_session(&tech_pvt->session, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
return SWITCH_STATUS_FALSE;
} else {
int ms;
tech_pvt->read_frame.rate = tech_pvt->codec_rate;
ms = tech_pvt->write_codec.implementation->microseconds_per_frame / 1000;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set Codec %s %s/%d %d ms\n",
switch_channel_get_name(channel),
tech_pvt->codecs[tech_pvt->codec_index]->iananame, tech_pvt->codec_rate, tech_pvt->codec_ms);
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
switch_core_session_set_read_codec(tech_pvt->session, &tech_pvt->read_codec);
switch_core_session_set_write_codec(tech_pvt->session, &tech_pvt->write_codec);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t activate_rtp(private_object_t *tech_pvt)
{
int bw, ms;
switch_channel_t *channel;
const char *err = NULL;
switch_rtp_flag_t flags;
switch_status_t status;
assert(tech_pvt != NULL);
channel = switch_core_session_get_channel(tech_pvt->session);
assert(channel != NULL);
if (switch_rtp_ready(tech_pvt->rtp_session)) {
return SWITCH_STATUS_SUCCESS;
}
if ((status = tech_set_codec(tech_pvt)) != SWITCH_STATUS_SUCCESS) {
return status;
}
bw = tech_pvt->read_codec.implementation->bits_per_second;
ms = tech_pvt->read_codec.implementation->microseconds_per_frame;
flags = (switch_rtp_flag_t) (SWITCH_RTP_FLAG_RAW_WRITE | SWITCH_RTP_FLAG_MINI);
if (switch_test_flag(tech_pvt, TFLAG_TIMER)) {
flags = (switch_rtp_flag_t) (flags | SWITCH_RTP_FLAG_USE_TIMER);
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "RTP [%s] %s:%d->%s:%d codec: %u ms: %d\n",
switch_channel_get_name(channel),
tech_pvt->local_sdp_audio_ip,
tech_pvt->local_sdp_audio_port,
tech_pvt->remote_sdp_audio_ip,
tech_pvt->remote_sdp_audio_port,
tech_pvt->read_codec.implementation->ianacode,
tech_pvt->read_codec.implementation->microseconds_per_frame / 1000);
tech_pvt->rtp_session = switch_rtp_new(tech_pvt->local_sdp_audio_ip,
tech_pvt->local_sdp_audio_port,
tech_pvt->remote_sdp_audio_ip,
tech_pvt->remote_sdp_audio_port,
tech_pvt->read_codec.implementation->ianacode,
tech_pvt->read_codec.implementation->encoded_bytes_per_frame,
tech_pvt->codec_ms * 1000,
(switch_rtp_flag_t) flags,
NULL,
&err,
switch_core_session_get_pool(tech_pvt->session));
if (switch_rtp_ready(tech_pvt->rtp_session)) {
uint8_t vad_in = switch_test_flag(tech_pvt, TFLAG_VAD_IN) ? 1 : 0;
uint8_t vad_out = switch_test_flag(tech_pvt, TFLAG_VAD_OUT) ? 1 : 0;
uint8_t inb = switch_test_flag(tech_pvt, TFLAG_OUTBOUND) ? 0 : 1;
tech_pvt->ssrc = switch_rtp_get_ssrc(tech_pvt->rtp_session);
switch_set_flag_locked(tech_pvt, TFLAG_RTP);
switch_set_flag_locked(tech_pvt, TFLAG_IO);
if ((vad_in && inb) || (vad_out && !inb)) {
switch_rtp_enable_vad(tech_pvt->rtp_session, tech_pvt->session, &tech_pvt->read_codec, SWITCH_VAD_FLAG_TALKING);
switch_set_flag_locked(tech_pvt, TFLAG_VAD);
}
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "RTP REPORTS ERROR: [%s]\n", err);
terminate_session(&tech_pvt->session, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
switch_clear_flag_locked(tech_pvt, TFLAG_IO);
return SWITCH_STATUS_FALSE;
}
switch_set_flag_locked(tech_pvt, TFLAG_IO);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_answer_channel(switch_core_session_t *session)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
assert(session != NULL);
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (!switch_test_flag(tech_pvt, TFLAG_ANS) && !switch_channel_test_flag(channel, CF_OUTBOUND)) {
switch_set_flag_locked(tech_pvt, TFLAG_ANS);
tech_choose_port(tech_pvt);
set_local_sdp(tech_pvt);
activate_rtp(tech_pvt);
if (tech_pvt->nh) {
nua_respond(tech_pvt->nh, SIP_200_OK,
//SIPTAG_CONTACT(tech_pvt->contact),
SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str), TAG_END());
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Local SDP:\n%s\n", tech_pvt->local_sdp_str);
}
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout,
switch_io_flag_t flags, int stream_id)
{
private_object_t *tech_pvt = NULL;
size_t bytes = 0, samples = 0, frames = 0, ms = 0;
switch_channel_t *channel = NULL;
int payload = 0;
switch_time_t now, started = switch_time_now(), last_act = switch_time_now();
unsigned int elapsed;
uint32_t hard_timeout = 60000 * 3;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (switch_test_flag(tech_pvt, TFLAG_HUP)) {
return SWITCH_STATUS_FALSE;
}
tech_pvt->read_frame.datalen = 0;
switch_set_flag_locked(tech_pvt, TFLAG_READING);
bytes = tech_pvt->read_codec.implementation->encoded_bytes_per_frame;
samples = tech_pvt->read_codec.implementation->samples_per_frame;
ms = tech_pvt->read_codec.implementation->microseconds_per_frame;
if (tech_pvt->last_read) {
elapsed = (unsigned int)((switch_time_now() - tech_pvt->last_read) / 1000);
if (elapsed > 60000) {
return SWITCH_STATUS_TIMEOUT;
}
}
if (switch_test_flag(tech_pvt, TFLAG_IO)) {
switch_status_t status;
if (!switch_test_flag(tech_pvt, TFLAG_RTP)) {
return SWITCH_STATUS_GENERR;
}
assert(tech_pvt->rtp_session != NULL);
tech_pvt->read_frame.datalen = 0;
while (!switch_test_flag(tech_pvt, TFLAG_BYE) && switch_test_flag(tech_pvt, TFLAG_IO) && tech_pvt->read_frame.datalen == 0) {
now = switch_time_now();
tech_pvt->read_frame.flags = SFF_NONE;
status = switch_rtp_zerocopy_read_frame(tech_pvt->rtp_session, &tech_pvt->read_frame);
if (status != SWITCH_STATUS_SUCCESS && status != SWITCH_STATUS_BREAK) {
return SWITCH_STATUS_FALSE;
}
payload = tech_pvt->read_frame.payload;
elapsed = (unsigned int)((switch_time_now() - started) / 1000);
if (timeout > -1) {
if (elapsed >= (unsigned int)timeout) {
return SWITCH_STATUS_BREAK;
}
}
elapsed = (unsigned int)((switch_time_now() - last_act) / 1000);
if (elapsed >= hard_timeout) {
return SWITCH_STATUS_BREAK;
}
if (switch_rtp_has_dtmf(tech_pvt->rtp_session)) {
char dtmf[128];
switch_rtp_dequeue_dtmf(tech_pvt->rtp_session, dtmf, sizeof(dtmf));
switch_channel_queue_dtmf(channel, dtmf);
}
if (tech_pvt->read_frame.datalen > 0) {
tech_pvt->last_read = switch_time_now();
bytes = tech_pvt->read_codec.implementation->encoded_bytes_per_frame;
frames = (tech_pvt->read_frame.datalen / bytes);
samples = frames * tech_pvt->read_codec.implementation->samples_per_frame;
ms = frames * tech_pvt->read_codec.implementation->microseconds_per_frame;
tech_pvt->timestamp_recv += (int32_t) samples;
tech_pvt->read_frame.samples = (int) samples;
break;
}
switch_yield(1000);
}
}
switch_clear_flag_locked(tech_pvt, TFLAG_READING);
*frame = &tech_pvt->read_frame;
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout,
switch_io_flag_t flags, int stream_id)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
switch_status_t status = SWITCH_STATUS_SUCCESS;
int bytes = 0, samples = 0, frames = 0;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (switch_test_flag(tech_pvt, TFLAG_HUP)) {
return SWITCH_STATUS_FALSE;
}
if (!switch_test_flag(tech_pvt, TFLAG_RTP)) {
return SWITCH_STATUS_GENERR;
}
if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
return SWITCH_STATUS_SUCCESS;
}
switch_set_flag_locked(tech_pvt, TFLAG_WRITING);
bytes = tech_pvt->read_codec.implementation->encoded_bytes_per_frame;
frames = ((int) frame->datalen / bytes);
samples = frames * tech_pvt->read_codec.implementation->samples_per_frame;
#if 0
printf("%s %s->%s send %d bytes %d samples in %d frames ts=%d\n",
switch_channel_get_name(channel),
tech_pvt->local_sdp_audio_ip,
tech_pvt->remote_sdp_audio_ip,
frame->datalen,
samples,
frames,
tech_pvt->timestamp_send);
#endif
switch_rtp_write_frame(tech_pvt->rtp_session, frame, samples);
tech_pvt->timestamp_send += (int) samples;
switch_clear_flag_locked(tech_pvt, TFLAG_WRITING);
return status;
}
static switch_status_t sofia_kill_channel(switch_core_session_t *session, int sig)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch_clear_flag_locked(tech_pvt, TFLAG_IO);
switch_set_flag_locked(tech_pvt, TFLAG_HUP);
if (switch_rtp_ready(tech_pvt->rtp_session)) {
switch_rtp_kill_socket(tech_pvt->rtp_session);
}
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_waitfor_read(switch_core_session_t *session, int ms, int stream_id)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_waitfor_write(switch_core_session_t *session, int ms, int stream_id)
{
private_object_t *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t sofia_send_dtmf(switch_core_session_t *session, char *digits)
{
private_object_t *tech_pvt;
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
return switch_rtp_queue_rfc2833(tech_pvt->rtp_session,
digits,
tech_pvt->profile->dtmf_duration * (tech_pvt->read_codec.implementation->samples_per_second / 1000));
}
static switch_status_t sofia_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg)
{
switch_channel_t *channel;
private_object_t *tech_pvt;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
switch (msg->message_id) {
case SWITCH_MESSAGE_INDICATE_BRIDGE:
if (tech_pvt->rtp_session && switch_test_flag(tech_pvt, TFLAG_TIMER)) {
switch_rtp_clear_flag(tech_pvt->rtp_session, SWITCH_RTP_FLAG_USE_TIMER);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "De-activate timed RTP!\n");
}
break;
case SWITCH_MESSAGE_INDICATE_UNBRIDGE:
if (tech_pvt->rtp_session && switch_test_flag(tech_pvt, TFLAG_TIMER)) {
switch_rtp_set_flag(tech_pvt->rtp_session, SWITCH_RTP_FLAG_USE_TIMER);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Re-activate timed RTP!\n");
}
break;
case SWITCH_MESSAGE_INDICATE_PROGRESS: {
struct private_object *tech_pvt;
switch_channel_t *channel = NULL;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (!switch_test_flag(tech_pvt, TFLAG_EARLY_MEDIA)) {
switch_set_flag_locked(tech_pvt, TFLAG_EARLY_MEDIA);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Asked to send early media by %s\n", msg->from);
/* Transmit 183 Progress with SDP */
tech_choose_port(tech_pvt);
set_local_sdp(tech_pvt);
activate_rtp(tech_pvt);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "183 SDP:\n%s\n", tech_pvt->local_sdp_str);
nua_respond(tech_pvt->nh, SIP_183_SESSION_PROGRESS,
//SIPTAG_CONTACT(tech_pvt->contact),
SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str), TAG_END());
}
}
break;
default:
break;
}
return SWITCH_STATUS_SUCCESS;
}
static const switch_io_routines_t sofia_io_routines = {
/*.outgoing_channel */ sofia_outgoing_channel,
/*.answer_channel */ sofia_answer_channel,
/*.read_frame */ sofia_read_frame,
/*.write_frame */ sofia_write_frame,
/*.kill_channel */ sofia_kill_channel,
/*.waitfor_read */ sofia_waitfor_read,
/*.waitfor_read */ sofia_waitfor_write,
/*.send_dtmf*/ sofia_send_dtmf,
/*.receive_message*/ sofia_receive_message
};
static const switch_state_handler_table_t sofia_event_handlers = {
/*.on_init */ sofia_on_init,
/*.on_ring */ sofia_on_ring,
/*.on_execute */ sofia_on_execute,
/*.on_hangup */ sofia_on_hangup,
/*.on_loopback */ sofia_on_loopback,
/*.on_transmit */ sofia_on_transmit
};
static const switch_endpoint_interface_t sofia_endpoint_interface = {
/*.interface_name */ "sofia",
/*.io_routines */ &sofia_io_routines,
/*.event_handlers */ &sofia_event_handlers,
/*.private */ NULL,
/*.next */ NULL
};
static const switch_loadable_module_interface_t sofia_module_interface = {
/*.module_name */ modname,
/*.endpoint_interface */ &sofia_endpoint_interface,
/*.timer_interface */ NULL,
/*.dialplan_interface */ NULL,
/*.codec_interface */ NULL,
/*.application_interface */ NULL
};
static switch_status_t sofia_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
switch_core_session_t **new_session, switch_memory_pool_t *pool)
{
switch_status_t status = SWITCH_STATUS_FALSE;
switch_core_session_t *nsession;
char *data, *profile_name, *dest;
sofia_profile_t *profile;
switch_caller_profile_t *caller_profile = NULL;
private_object_t *tech_pvt = NULL;
switch_channel_t *channel;
*new_session = NULL;
if (!(nsession = switch_core_session_request(&sofia_endpoint_interface, pool))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error Creating Session\n");
goto done;
}
if (!(tech_pvt = (struct private_object *) switch_core_session_alloc(nsession, sizeof(*tech_pvt)))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error Creating Session\n");
terminate_session(&nsession, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
goto done;
}
data = switch_core_session_strdup(nsession, outbound_profile->destination_number);
profile_name = data;
if (!(dest = strchr(profile_name, '/'))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid URL\n");
terminate_session(&nsession, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
goto done;
}
*dest++ = '\0';
if (!(profile = (sofia_profile_t *) switch_core_hash_find(globals.profile_hash, profile_name))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid Profile\n");
terminate_session(&nsession, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
goto done;
}
tech_pvt->dest = switch_core_session_alloc(nsession, strlen(dest) + 5);
snprintf(tech_pvt->dest, strlen(dest) + 5, "sip:%s", dest);
channel = switch_core_session_get_channel(nsession);
attach_private(nsession, profile, tech_pvt, dest);
caller_profile = switch_caller_profile_clone(nsession, outbound_profile);
switch_channel_set_caller_profile(channel, caller_profile);
switch_channel_set_flag(channel, CF_OUTBOUND);
switch_set_flag_locked(tech_pvt, TFLAG_OUTBOUND);
switch_channel_set_state(channel, CS_INIT);
switch_channel_set_variable(channel, "endpoint_disposition", "OUTBOUND");
*new_session = nsession;
status = SWITCH_STATUS_SUCCESS;
done:
return status;
}
static uint8_t negotiate_sdp(switch_core_session_t *session, sdp_session_t *sdp)
{
uint8_t match = 0;
private_object_t *tech_pvt;
sdp_media_t *m;
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
for (m = sdp->sdp_media; m ; m = m->m_next) {
if (m->m_type == sdp_media_audio) {
sdp_rtpmap_t *map;
for (map = m->m_rtpmaps; map; map = map->rm_next) {
int32_t i;
if (!strcmp(map->rm_encoding, "telephone-event")) {
tech_pvt->te = (switch_payload_t)map->rm_pt;
}
for (i = 0; i < tech_pvt->num_codecs; i++) {
const switch_codec_implementation_t *imp = tech_pvt->codecs[i];
if (map->rm_pt < 97) {
match = (map->rm_pt == imp->ianacode) ? 1 : 0;
} else {
match = strcasecmp(map->rm_encoding, imp->iananame) ? 0 : 1;
}
if (match && (map->rm_rate == imp->samples_per_second)) {
tech_pvt->rm_encoding = switch_core_session_strdup(session, (char *)map->rm_encoding);
tech_pvt->pt = (switch_payload_t)map->rm_pt;
tech_pvt->rm_rate = map->rm_rate;
tech_pvt->codec_ms = imp->microseconds_per_frame / 1000;
tech_pvt->remote_sdp_audio_ip = switch_core_session_strdup(session, (char *)sdp->sdp_connection->c_address);
tech_pvt->remote_sdp_audio_port = (switch_port_t)m->m_port;
break;
} else {
match = 0;
}
}
if (match) {
if (tech_set_codec(tech_pvt) != SWITCH_STATUS_SUCCESS) {
match = 0;
}
break;
}
}
}
}
return match;
}
static void sip_i_state(int status,
char const *phrase,
nua_t *nua,
sofia_profile_t *profile,
nua_handle_t *nh,
switch_core_session_t *session,
sip_t const *sip,
tagi_t tags[])
{
char const *l_sdp = NULL, *r_sdp = NULL;
//int audio = nua_active_inactive, video = nua_active_inactive, chat = nua_active_inactive;
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;
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),
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);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
tech_pvt->nh = nh;
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, (char *)r_sdp);
}
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 (session && r_sdp) {
sdp_parser_t *parser = sdp_parse(tech_pvt->home, r_sdp, (int)strlen(r_sdp), 0);
sdp_session_t *sdp;
uint8_t match = 0;
if (tech_pvt->num_codecs) {
if ((sdp = sdp_session(parser))) {
match = negotiate_sdp(session, sdp);
}
}
if (parser) {
sdp_parser_free(parser);
}
if (match) {
tech_choose_port(tech_pvt);
activate_rtp(tech_pvt);
switch_channel_set_variable(channel, "endpoint_disposition", "EARLY MEDIA");
switch_channel_pre_answer(channel);
return;
}
}
switch_channel_set_variable(channel, "endpoint_disposition", "NO CODECS");
nua_respond(nh, SIP_488_NOT_ACCEPTABLE,
//SIPTAG_CONTACT(tech_pvt->contact),
TAG_END());
break;
case nua_callstate_completing:
nua_ack(nh, TAG_END());
break;
case nua_callstate_received:
if (session && r_sdp) {
sdp_parser_t *parser = sdp_parse(tech_pvt->home, r_sdp, (int)strlen(r_sdp), 0);
sdp_session_t *sdp;
uint8_t match = 0;
if (tech_pvt->num_codecs) {
if ((sdp = sdp_session(parser))) {
match = negotiate_sdp(session, sdp);
}
}
if (parser) {
sdp_parser_free(parser);
}
if (match) {
switch_channel_set_variable(channel, "endpoint_disposition", "RECEIVED");
switch_channel_set_state(channel, CS_INIT);
switch_set_flag_locked(tech_pvt, TFLAG_READY);
switch_core_session_thread_launch(session);
return;
}
}
switch_channel_set_variable(channel, "endpoint_disposition", "NO CODECS");
nua_respond(nh, SIP_488_NOT_ACCEPTABLE,
//SIPTAG_CONTACT(tech_pvt->contact),
TAG_END());
break;
case nua_callstate_early:
break;
case nua_callstate_completed:
break;
case nua_callstate_ready:
if (session) {
if (r_sdp) {
sdp_parser_t *parser = sdp_parse(tech_pvt->home, r_sdp, (int)strlen(r_sdp), 0);
sdp_session_t *sdp;
uint8_t match = 0;
if (tech_pvt->num_codecs) {
if ((sdp = sdp_session(parser))) {
match = negotiate_sdp(session, sdp);
}
}
if (parser) {
sdp_parser_free(parser);
}
if (match) {
switch_set_flag_locked(tech_pvt, TFLAG_ANS);
switch_channel_set_variable(channel, "endpoint_disposition", "ANSWER");
tech_choose_port(tech_pvt);
activate_rtp(tech_pvt);
switch_channel_answer(channel);
return;
}
} else if (switch_test_flag(tech_pvt, TFLAG_EARLY_MEDIA)) {
switch_channel_set_variable(channel, "endpoint_disposition", "ANSWER");
switch_channel_answer(channel);
return;
}
}
switch_channel_set_variable(channel, "endpoint_disposition", "NO CODECS");
nua_respond(nh, SIP_488_NOT_ACCEPTABLE,
//SIPTAG_CONTACT(tech_pvt->contact),
TAG_END());
break;
case nua_callstate_terminating:
break;
case nua_callstate_terminated:
if (session) {
switch_set_flag_locked(tech_pvt, TFLAG_BYE);
terminate_session(&session, SWITCH_CAUSE_NORMAL_CLEARING, __LINE__);
}
break;
}
}
static void sip_i_invite(nua_t *nua,
sofia_profile_t *profile,
nua_handle_t *nh,
switch_core_session_t *session,
sip_t const *sip,
tagi_t tags[])
{
if (!session) {
if ((session = switch_core_session_request(&sofia_endpoint_interface, NULL))) {
private_object_t *tech_pvt = NULL;
switch_channel_t *channel = NULL;
sip_from_t const *from = sip->sip_from;
sip_to_t const *to = sip->sip_to;
char *displayname;
char username[256];
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");
terminate_session(&session, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER, __LINE__);
return;
}
displayname = switch_core_session_strdup(session, (char *) from->a_display);
if (*displayname == '"') {
char *p;
displayname++;
if ((p = strchr(displayname, '"'))) {
*p = '\0';
}
}
snprintf(username, sizeof(username), "%s@%s", (char *) from->a_url->url_user, (char *) from->a_url->url_host);
attach_private(session, profile, tech_pvt, username);
snprintf(username, sizeof(username), "sip:%s@%s", (char *) from->a_url->url_user, (char *) from->a_url->url_host);
tech_pvt->contact = sip_contact_create(tech_pvt->home, URL_STRING_MAKE(username), NULL);
channel = switch_core_session_get_channel(session);
switch_channel_set_variable(channel, "endpoint_disposition", "INBOUND CALL");
if ((tech_pvt->caller_profile = switch_caller_profile_new(switch_core_session_get_pool(session),
(char *) from->a_url->url_user,
profile->dialplan,
displayname,
(char *) from->a_url->url_user,
(char *) from->a_url->url_host,
NULL,
NULL,
NULL,
(char *)modname,
profile->context,
(char *) to->a_url->url_user)) != 0) {
switch_channel_set_caller_profile(channel, tech_pvt->caller_profile);
}
switch_set_flag_locked(tech_pvt, TFLAG_INBOUND);
nua_handle_bind(nh, session);
}
}
}
static void event_callback(nua_event_t event,
int status,
char const *phrase,
nua_t *nua,
sofia_profile_t *profile,
nua_handle_t *nh,
switch_core_session_t *session,
sip_t const *sip,
tagi_t tags[])
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "event [%s] status [%d] [%s]\n",
nua_event_name (event), status, phrase);
switch (event) {
case nua_r_shutdown:
//sip_r_shutdown(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_get_params:
//sip_r_get_params(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_register:
//sip_r_register(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_unregister:
//sip_r_unregister(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_options:
//sip_r_options(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_invite:
//sip_r_invite(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_fork:
//sip_i_fork(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_invite:
sip_i_invite(nua, profile, nh, session, sip, tags);
break;
case nua_i_prack:
//sip_i_prack(nua, profile, nh, session, sip, tags);
break;
case nua_i_state:
sip_i_state(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_bye:
//sip_r_bye(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_bye:
//sip_i_bye(nua, profile, nh, session, sip, tags);
break;
case nua_r_message:
//sip_r_message(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_message:
//sip_i_message(nua, profile, nh, session, sip, tags);
break;
case nua_r_info:
//sip_r_info(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_info:
//sip_i_info(nua, profile, nh, session, sip, tags);
break;
case nua_r_refer:
//sip_r_refer(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_refer:
//sip_i_refer(nua, profile, nh, session, sip, tags);
break;
case nua_r_subscribe:
//sip_r_subscribe(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_unsubscribe:
//sip_r_unsubscribe(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_publish:
//sip_r_publish(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_r_notify:
//sip_r_notify(status, phrase, nua, profile, nh, session, sip, tags);
break;
case nua_i_notify:
//sip_i_notify(nua, profile, nh, session, sip, tags);
break;
case nua_i_cancel:
//sip_i_cancel(nua, profile, nh, session, sip, tags);
break;
case nua_i_error:
//sip_i_error(nua, profile, nh, session, status, phrase, tags);
break;
case nua_i_active:
case nua_i_ack:
case nua_i_terminated:
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);
//tl_print(stdout, "", tags);
break;
}
}
static void *SWITCH_THREAD_FUNC 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;
profile->s_root = su_root_create(NULL);
profile->nua = nua_create(profile->s_root, /* Event loop */
event_callback, /* Callback for processing events */
profile, /* Additional data to pass to callback */
NUTAG_URL(profile->url),
TAG_END()); /* Last tag should always finish the sequence */
nua_set_params(profile->nua,
NUTAG_EARLY_MEDIA(1),
NUTAG_AUTOANSWER(0),
NUTAG_AUTOALERT(0),
SIPTAG_SUPPORTED_STR("100rel, precondition")
);
for (node = profile->aliases; node; node = node->next) {
node->nua = nua_create(profile->s_root, /* Event loop */
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_EARLY_MEDIA(1),
NUTAG_AUTOANSWER(0),
SIPTAG_SUPPORTED_STR("100rel, precondition"),
NUTAG_AUTOALERT(0));
}
su_root_run(profile->s_root);
su_root_destroy(profile->s_root);
pool = profile->pool;
switch_core_destroy_memory_pool(&pool);
return NULL;
}
static void launch_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_mutex_lock(globals.hash_mutex);
switch_core_hash_insert(globals.profile_hash, profile->name, profile);
switch_mutex_unlock(globals.hash_mutex);
switch_thread_create(&thread, thd_attr, profile_thread_run, profile, profile->pool);
}
static switch_status_t config_sofia(int reload)
{
char *cf = "sofia.conf";
switch_xml_t cfg, xml = NULL, xprofile, param;
switch_status_t status = SWITCH_STATUS_SUCCESS;
if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "open of %s failed\n", cf);
status = SWITCH_STATUS_FALSE;
goto done;
}
for (xprofile = switch_xml_child(cfg, "profile"); xprofile; xprofile = xprofile->next) {
char *xprofilename = (char *) switch_xml_attr_soft(xprofile, "name");
sofia_profile_t *profile;
switch_memory_pool_t *pool = NULL;
char url[512] = "";
/* 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;
}
if (!xprofilename) {
xprofilename = "unnamed";
}
profile->pool = pool;
profile->name = switch_core_strdup(profile->pool, xprofilename);
profile->dtmf_duration = 100;
for (param = switch_xml_child(xprofile, "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, "debug")) {
profile->debug = atoi(val);
} else if (!strcmp(var, "use-rtp-timer") && switch_true(val)) {
switch_set_flag(profile, TFLAG_TIMER);
} else if (!strcmp(var, "rfc2833-pt")) {
profile->te = (switch_payload_t) atoi(val);
} else if (!strcmp(var, "sip-port")) {
profile->sip_port = atoi(val);
} else if (!strcmp(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 (!strcmp(var, "ext-rtp-ip")) {
profile->extrtpip = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "rtp-ip")) {
profile->rtpip = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "sip-ip")) {
profile->sipip = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "sip-domain")) {
profile->sipdomain = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "ext-sip-ip")) {
profile->extsipip = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "username")) {
profile->username = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "context")) {
profile->context = switch_core_strdup(profile->pool, val);
} else if (!strcmp(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 (!strcmp(var, "dialplan")) {
profile->dialplan = switch_core_strdup(profile->pool, val);
} else if (!strcmp(var, "max-calls")) {
profile->max_calls = atoi(val);
} else if (!strcmp(var, "codec-prefs")) {
profile->codec_string = switch_core_strdup(profile->pool, val);
profile->codec_order_last = switch_separate_string(profile->codec_string, ',', profile->codec_order, SWITCH_MAX_CODECS);
} else if (!strcmp(var, "codec-ms")) {
profile->codec_ms = atoi(val);
} else if (!strcmp(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");
}
}
}
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->codec_ms) {
profile->codec_ms = 20;
}
if (!profile->sip_port) {
profile->sip_port = 5060;
}
if (!profile->dialplan) {
profile->dialplan = switch_core_strdup(profile->pool, "default");
}
if (!profile->sipdomain) {
profile->sipdomain = switch_core_strdup(profile->pool, profile->sipip);
}
snprintf(url, sizeof(url), "sip:%s:%d", profile->sipip, profile->sip_port);
profile->url = switch_core_strdup(profile->pool, url);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Started Profile %s [%s]\n", profile->name, url);
launch_profile_thread(profile);
}
done:
if (xml) {
switch_xml_free(xml);
}
return status;
}
SWITCH_MOD_DECLARE(switch_status_t) switch_module_load(const switch_loadable_module_interface_t **module_interface, char *filename)
{
if (switch_core_new_memory_pool(&module_pool) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "OH OH no pool\n");
return SWITCH_STATUS_TERM;
}
memset(&globals, 0, sizeof(globals));
su_init();
switch_core_hash_init(&globals.profile_hash, module_pool);
switch_mutex_init(&globals.hash_mutex, SWITCH_MUTEX_NESTED, module_pool);
config_sofia(0);
/* connect my internal structure to the blank pointer passed to me */
*module_interface = &sofia_module_interface;
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;
}
SWITCH_MOD_DECLARE(switch_status_t) switch_module_shutdown(void)
{
/* Adding Note so we can destroy these properly. Will remind tony.
* nua_destroy (nua);
* su_root_destroy (root);
*/
su_deinit();
return SWITCH_STATUS_SUCCESS;
}
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