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switch_channel.c
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switch_channel.c
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/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2011, Anthony Minessale II <anthm@freeswitch.org>
*
* 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 <anthm@freeswitch.org>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthm@freeswitch.org>
* Michael Jerris <mike@jerris.com>
*
*
* switch_channel.c -- Media Channel Interface
*
*/
#include <switch.h>
#include <switch_channel.h>
struct switch_cause_table {
const char *name;
switch_call_cause_t cause;
};
static struct switch_cause_table CAUSE_CHART[] = {
{"NONE", SWITCH_CAUSE_NONE},
{"UNALLOCATED_NUMBER", SWITCH_CAUSE_UNALLOCATED_NUMBER},
{"NO_ROUTE_TRANSIT_NET", SWITCH_CAUSE_NO_ROUTE_TRANSIT_NET},
{"NO_ROUTE_DESTINATION", SWITCH_CAUSE_NO_ROUTE_DESTINATION},
{"CHANNEL_UNACCEPTABLE", SWITCH_CAUSE_CHANNEL_UNACCEPTABLE},
{"CALL_AWARDED_DELIVERED", SWITCH_CAUSE_CALL_AWARDED_DELIVERED},
{"NORMAL_CLEARING", SWITCH_CAUSE_NORMAL_CLEARING},
{"USER_BUSY", SWITCH_CAUSE_USER_BUSY},
{"NO_USER_RESPONSE", SWITCH_CAUSE_NO_USER_RESPONSE},
{"NO_ANSWER", SWITCH_CAUSE_NO_ANSWER},
{"SUBSCRIBER_ABSENT", SWITCH_CAUSE_SUBSCRIBER_ABSENT},
{"CALL_REJECTED", SWITCH_CAUSE_CALL_REJECTED},
{"NUMBER_CHANGED", SWITCH_CAUSE_NUMBER_CHANGED},
{"REDIRECTION_TO_NEW_DESTINATION", SWITCH_CAUSE_REDIRECTION_TO_NEW_DESTINATION},
{"EXCHANGE_ROUTING_ERROR", SWITCH_CAUSE_EXCHANGE_ROUTING_ERROR},
{"DESTINATION_OUT_OF_ORDER", SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER},
{"INVALID_NUMBER_FORMAT", SWITCH_CAUSE_INVALID_NUMBER_FORMAT},
{"FACILITY_REJECTED", SWITCH_CAUSE_FACILITY_REJECTED},
{"RESPONSE_TO_STATUS_ENQUIRY", SWITCH_CAUSE_RESPONSE_TO_STATUS_ENQUIRY},
{"NORMAL_UNSPECIFIED", SWITCH_CAUSE_NORMAL_UNSPECIFIED},
{"NORMAL_CIRCUIT_CONGESTION", SWITCH_CAUSE_NORMAL_CIRCUIT_CONGESTION},
{"NETWORK_OUT_OF_ORDER", SWITCH_CAUSE_NETWORK_OUT_OF_ORDER},
{"NORMAL_TEMPORARY_FAILURE", SWITCH_CAUSE_NORMAL_TEMPORARY_FAILURE},
{"SWITCH_CONGESTION", SWITCH_CAUSE_SWITCH_CONGESTION},
{"ACCESS_INFO_DISCARDED", SWITCH_CAUSE_ACCESS_INFO_DISCARDED},
{"REQUESTED_CHAN_UNAVAIL", SWITCH_CAUSE_REQUESTED_CHAN_UNAVAIL},
{"PRE_EMPTED", SWITCH_CAUSE_PRE_EMPTED},
{"FACILITY_NOT_SUBSCRIBED", SWITCH_CAUSE_FACILITY_NOT_SUBSCRIBED},
{"OUTGOING_CALL_BARRED", SWITCH_CAUSE_OUTGOING_CALL_BARRED},
{"INCOMING_CALL_BARRED", SWITCH_CAUSE_INCOMING_CALL_BARRED},
{"BEARERCAPABILITY_NOTAUTH", SWITCH_CAUSE_BEARERCAPABILITY_NOTAUTH},
{"BEARERCAPABILITY_NOTAVAIL", SWITCH_CAUSE_BEARERCAPABILITY_NOTAVAIL},
{"SERVICE_UNAVAILABLE", SWITCH_CAUSE_SERVICE_UNAVAILABLE},
{"CHAN_NOT_IMPLEMENTED", SWITCH_CAUSE_CHAN_NOT_IMPLEMENTED},
{"FACILITY_NOT_IMPLEMENTED", SWITCH_CAUSE_FACILITY_NOT_IMPLEMENTED},
{"SERVICE_NOT_IMPLEMENTED", SWITCH_CAUSE_SERVICE_NOT_IMPLEMENTED},
{"INVALID_CALL_REFERENCE", SWITCH_CAUSE_INVALID_CALL_REFERENCE},
{"INCOMPATIBLE_DESTINATION", SWITCH_CAUSE_INCOMPATIBLE_DESTINATION},
{"INVALID_MSG_UNSPECIFIED", SWITCH_CAUSE_INVALID_MSG_UNSPECIFIED},
{"MANDATORY_IE_MISSING", SWITCH_CAUSE_MANDATORY_IE_MISSING},
{"MESSAGE_TYPE_NONEXIST", SWITCH_CAUSE_MESSAGE_TYPE_NONEXIST},
{"WRONG_MESSAGE", SWITCH_CAUSE_WRONG_MESSAGE},
{"IE_NONEXIST", SWITCH_CAUSE_IE_NONEXIST},
{"INVALID_IE_CONTENTS", SWITCH_CAUSE_INVALID_IE_CONTENTS},
{"WRONG_CALL_STATE", SWITCH_CAUSE_WRONG_CALL_STATE},
{"RECOVERY_ON_TIMER_EXPIRE", SWITCH_CAUSE_RECOVERY_ON_TIMER_EXPIRE},
{"MANDATORY_IE_LENGTH_ERROR", SWITCH_CAUSE_MANDATORY_IE_LENGTH_ERROR},
{"PROTOCOL_ERROR", SWITCH_CAUSE_PROTOCOL_ERROR},
{"INTERWORKING", SWITCH_CAUSE_INTERWORKING},
{"SUCCESS", SWITCH_CAUSE_SUCCESS},
{"ORIGINATOR_CANCEL", SWITCH_CAUSE_ORIGINATOR_CANCEL},
{"CRASH", SWITCH_CAUSE_CRASH},
{"SYSTEM_SHUTDOWN", SWITCH_CAUSE_SYSTEM_SHUTDOWN},
{"LOSE_RACE", SWITCH_CAUSE_LOSE_RACE},
{"MANAGER_REQUEST", SWITCH_CAUSE_MANAGER_REQUEST},
{"BLIND_TRANSFER", SWITCH_CAUSE_BLIND_TRANSFER},
{"ATTENDED_TRANSFER", SWITCH_CAUSE_ATTENDED_TRANSFER},
{"ALLOTTED_TIMEOUT", SWITCH_CAUSE_ALLOTTED_TIMEOUT},
{"USER_CHALLENGE", SWITCH_CAUSE_USER_CHALLENGE},
{"MEDIA_TIMEOUT", SWITCH_CAUSE_MEDIA_TIMEOUT},
{"PICKED_OFF", SWITCH_CAUSE_PICKED_OFF},
{"USER_NOT_REGISTERED", SWITCH_CAUSE_USER_NOT_REGISTERED},
{"PROGRESS_TIMEOUT", SWITCH_CAUSE_PROGRESS_TIMEOUT},
{NULL, 0}
};
typedef enum {
OCF_HANGUP = (1 << 0)
} opaque_channel_flag_t;
struct switch_channel {
char *name;
switch_call_direction_t direction;
switch_queue_t *dtmf_queue;
switch_queue_t *dtmf_log_queue;
switch_mutex_t *dtmf_mutex;
switch_mutex_t *flag_mutex;
switch_mutex_t *state_mutex;
switch_mutex_t *profile_mutex;
switch_core_session_t *session;
switch_channel_state_t state;
switch_channel_state_t running_state;
switch_channel_callstate_t callstate;
uint32_t flags[CF_FLAG_MAX];
uint32_t caps[CC_FLAG_MAX];
uint8_t state_flags[CF_FLAG_MAX];
uint32_t private_flags;
switch_caller_profile_t *caller_profile;
const switch_state_handler_table_t *state_handlers[SWITCH_MAX_STATE_HANDLERS];
int state_handler_index;
switch_event_t *variables;
switch_hash_t *private_hash;
switch_hash_t *app_flag_hash;
switch_call_cause_t hangup_cause;
int vi;
int event_count;
int profile_index;
opaque_channel_flag_t opaque_flags;
};
SWITCH_DECLARE(const char *) switch_channel_cause2str(switch_call_cause_t cause)
{
uint8_t x;
const char *str = "UNKNOWN";
for (x = 0; x < (sizeof(CAUSE_CHART) / sizeof(struct switch_cause_table)) - 1; x++) {
if (CAUSE_CHART[x].cause == cause) {
str = CAUSE_CHART[x].name;
break;
}
}
return str;
}
SWITCH_DECLARE(switch_call_cause_t) switch_channel_str2cause(const char *str)
{
uint8_t x;
switch_call_cause_t cause = SWITCH_CAUSE_NONE;
if (*str > 47 && *str < 58) {
cause = atoi(str);
} else {
for (x = 0; x < (sizeof(CAUSE_CHART) / sizeof(struct switch_cause_table)) - 1 && CAUSE_CHART[x].name; x++) {
if (!strcasecmp(CAUSE_CHART[x].name, str)) {
cause = CAUSE_CHART[x].cause;
break;
}
}
}
return cause;
}
SWITCH_DECLARE(switch_call_cause_t) switch_channel_get_cause(switch_channel_t *channel)
{
return channel->hangup_cause;
}
struct switch_callstate_table {
const char *name;
switch_channel_callstate_t callstate;
};
static struct switch_callstate_table CALLSTATE_CHART[] = {
{"DOWN", CCS_DOWN},
{"DIALING", CCS_DIALING},
{"RINGING", CCS_RINGING},
{"EARLY", CCS_EARLY},
{"ACTIVE", CCS_ACTIVE},
{"HELD", CCS_HELD},
{"HANGUP", CCS_HANGUP},
{NULL, 0}
};
SWITCH_DECLARE(void) switch_channel_perform_set_callstate(switch_channel_t *channel, switch_channel_callstate_t callstate,
const char *file, const char *func, int line)
{
switch_event_t *event;
switch_channel_callstate_t o_callstate = channel->callstate;
if (o_callstate == callstate) return;
channel->callstate = callstate;
switch_log_printf(SWITCH_CHANNEL_ID_LOG, file, func, line, switch_channel_get_uuid(channel), SWITCH_LOG_DEBUG,
"(%s) Callstate Change %s -> %s\n", channel->name,
switch_channel_callstate2str(o_callstate), switch_channel_callstate2str(callstate));
if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_CALLSTATE) == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Original-Channel-Call-State", switch_channel_callstate2str(o_callstate));
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
}
SWITCH_DECLARE(switch_channel_callstate_t) switch_channel_get_callstate(switch_channel_t *channel)
{
return channel->callstate;
}
SWITCH_DECLARE(const char *) switch_channel_callstate2str(switch_channel_callstate_t callstate)
{
uint8_t x;
const char *str = "UNKNOWN";
for (x = 0; x < (sizeof(CALLSTATE_CHART) / sizeof(struct switch_cause_table)) - 1; x++) {
if (CALLSTATE_CHART[x].callstate == callstate) {
str = CALLSTATE_CHART[x].name;
break;
}
}
return str;
}
SWITCH_DECLARE(switch_call_cause_t) switch_channel_str2callstate(const char *str)
{
uint8_t x;
switch_channel_callstate_t callstate = SWITCH_CAUSE_NONE;
if (*str > 47 && *str < 58) {
callstate = atoi(str);
} else {
for (x = 0; x < (sizeof(CALLSTATE_CHART) / sizeof(struct switch_callstate_table)) - 1 && CALLSTATE_CHART[x].name; x++) {
if (!strcasecmp(CALLSTATE_CHART[x].name, str)) {
callstate = CALLSTATE_CHART[x].callstate;
break;
}
}
}
return callstate;
}
SWITCH_DECLARE(void) switch_channel_perform_audio_sync(switch_channel_t *channel, const char *file, const char *func, int line)
{
if (switch_channel_media_ready(channel)) {
switch_core_session_message_t msg = { 0 };
msg.message_id = SWITCH_MESSAGE_INDICATE_AUDIO_SYNC;
msg.from = channel->name;
msg._file = file;
msg._func = func;
msg._line = line;
switch_core_session_receive_message(channel->session, &msg);
}
}
SWITCH_DECLARE(switch_call_cause_t) switch_channel_cause_q850(switch_call_cause_t cause)
{
if (cause <= SWITCH_CAUSE_INTERWORKING) {
return cause;
} else {
return SWITCH_CAUSE_NORMAL_CLEARING;
}
}
SWITCH_DECLARE(switch_call_cause_t) switch_channel_get_cause_q850(switch_channel_t *channel)
{
return switch_channel_cause_q850(channel->hangup_cause);
}
SWITCH_DECLARE(switch_channel_timetable_t *) switch_channel_get_timetable(switch_channel_t *channel)
{
switch_channel_timetable_t *times = NULL;
if (channel->caller_profile) {
switch_mutex_lock(channel->profile_mutex);
times = channel->caller_profile->times;
switch_mutex_unlock(channel->profile_mutex);
}
return times;
}
SWITCH_DECLARE(switch_call_direction_t) switch_channel_direction(switch_channel_t *channel)
{
return channel->direction;
}
SWITCH_DECLARE(switch_status_t) switch_channel_alloc(switch_channel_t **channel, switch_call_direction_t direction, switch_memory_pool_t *pool)
{
switch_assert(pool != NULL);
if (((*channel) = switch_core_alloc(pool, sizeof(switch_channel_t))) == 0) {
return SWITCH_STATUS_MEMERR;
}
switch_event_create_plain(&(*channel)->variables, SWITCH_EVENT_CHANNEL_DATA);
switch_core_hash_init(&(*channel)->private_hash, pool);
switch_queue_create(&(*channel)->dtmf_queue, SWITCH_DTMF_LOG_LEN, pool);
switch_queue_create(&(*channel)->dtmf_log_queue, SWITCH_DTMF_LOG_LEN, pool);
switch_mutex_init(&(*channel)->dtmf_mutex, SWITCH_MUTEX_NESTED, pool);
switch_mutex_init(&(*channel)->flag_mutex, SWITCH_MUTEX_NESTED, pool);
switch_mutex_init(&(*channel)->state_mutex, SWITCH_MUTEX_NESTED, pool);
switch_mutex_init(&(*channel)->profile_mutex, SWITCH_MUTEX_NESTED, pool);
(*channel)->hangup_cause = SWITCH_CAUSE_NONE;
(*channel)->name = "";
(*channel)->direction = direction;
switch_channel_set_variable(*channel, "direction", switch_channel_direction(*channel) == SWITCH_CALL_DIRECTION_OUTBOUND ? "outbound" : "inbound");
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(switch_size_t) switch_channel_has_dtmf(switch_channel_t *channel)
{
switch_size_t has;
switch_mutex_lock(channel->dtmf_mutex);
has = switch_queue_size(channel->dtmf_queue);
switch_mutex_unlock(channel->dtmf_mutex);
return has;
}
SWITCH_DECLARE(switch_status_t) switch_channel_queue_dtmf(switch_channel_t *channel, const switch_dtmf_t *dtmf)
{
switch_status_t status;
void *pop;
switch_dtmf_t new_dtmf;
switch_assert(dtmf);
switch_mutex_lock(channel->dtmf_mutex);
new_dtmf = *dtmf;
if ((status = switch_core_session_recv_dtmf(channel->session, dtmf) != SWITCH_STATUS_SUCCESS)) {
goto done;
}
if (is_dtmf(new_dtmf.digit)) {
switch_dtmf_t *dt;
int x = 0;
if (new_dtmf.duration > switch_core_max_dtmf_duration(0)) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_DEBUG1, "%s EXCESSIVE DTMF DIGIT [%c] LEN [%d]\n",
switch_channel_get_name(channel), new_dtmf.digit, new_dtmf.duration);
new_dtmf.duration = switch_core_max_dtmf_duration(0);
} else if (new_dtmf.duration < switch_core_min_dtmf_duration(0)) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_DEBUG1, "%s SHORT DTMF DIGIT [%c] LEN [%d]\n",
switch_channel_get_name(channel), new_dtmf.digit, new_dtmf.duration);
new_dtmf.duration = switch_core_min_dtmf_duration(0);
} else if (!new_dtmf.duration) {
new_dtmf.duration = switch_core_default_dtmf_duration(0);
}
switch_zmalloc(dt, sizeof(*dt));
*dt = new_dtmf;
while (switch_queue_trypush(channel->dtmf_queue, dt) != SWITCH_STATUS_SUCCESS) {
if (switch_queue_trypop(channel->dtmf_queue, &pop) == SWITCH_STATUS_SUCCESS) {
free(pop);
}
if (++x > 100) {
status = SWITCH_STATUS_FALSE;
free(dt);
goto done;
}
}
}
status = SWITCH_STATUS_SUCCESS;
done:
switch_mutex_unlock(channel->dtmf_mutex);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_channel_queue_dtmf_string(switch_channel_t *channel, const char *dtmf_string)
{
char *p;
switch_dtmf_t dtmf = { 0, switch_core_default_dtmf_duration(0), 0};
int sent = 0, dur;
char *string;
int i, argc;
char *argv[256];
if (zstr(dtmf_string)) {
return SWITCH_STATUS_FALSE;
}
if (*dtmf_string == '!') {
dtmf_string++;
dtmf.flags = DTMF_FLAG_SKIP_PROCESS;
}
string = switch_core_session_strdup(channel->session, dtmf_string);
argc = switch_separate_string(string, '+', argv, (sizeof(argv) / sizeof(argv[0])));
for (i = 0; i < argc; i++) {
dtmf.duration = switch_core_default_dtmf_duration(0);
dur = switch_core_default_dtmf_duration(0) / 8;
if ((p = strchr(argv[i], '@'))) {
*p++ = '\0';
if ((dur = atoi(p)) > 50) {
dtmf.duration = dur * 8;
}
}
if (dtmf.duration > switch_core_max_dtmf_duration(0)) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_WARNING, "EXCESSIVE DTMF DIGIT LEN %c %d\n", dtmf.digit, dtmf.duration);
dtmf.duration = switch_core_max_dtmf_duration(0);
} else if (dtmf.duration < switch_core_min_dtmf_duration(0)) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_WARNING, "SHORT DTMF DIGIT LEN %c %d\n", dtmf.digit, dtmf.duration);
dtmf.duration = switch_core_min_dtmf_duration(0);
} else if (!dtmf.duration) {
dtmf.duration = switch_core_default_dtmf_duration(0);
}
for (p = argv[i]; p && *p; p++) {
if (is_dtmf(*p)) {
dtmf.digit = *p;
if (switch_channel_queue_dtmf(channel, &dtmf) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_DEBUG, "%s Queue dtmf\ndigit=%c ms=%u samples=%u\n",
switch_channel_get_name(channel), dtmf.digit, dur, dtmf.duration);
sent++;
}
}
}
}
return sent ? SWITCH_STATUS_SUCCESS : SWITCH_STATUS_FALSE;
}
SWITCH_DECLARE(switch_status_t) switch_channel_dequeue_dtmf(switch_channel_t *channel, switch_dtmf_t *dtmf)
{
switch_event_t *event;
void *pop;
switch_dtmf_t *dt;
switch_status_t status = SWITCH_STATUS_FALSE;
switch_mutex_lock(channel->dtmf_mutex);
if (switch_queue_trypop(channel->dtmf_queue, &pop) == SWITCH_STATUS_SUCCESS) {
dt = (switch_dtmf_t *) pop;
*dtmf = *dt;
if (switch_queue_trypush(channel->dtmf_log_queue, dt) != SWITCH_STATUS_SUCCESS) {
free(dt);
}
dt = NULL;
if (dtmf->duration > switch_core_max_dtmf_duration(0)) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_WARNING, "%s EXCESSIVE DTMF DIGIT [%c] LEN [%d]\n",
switch_channel_get_name(channel), dtmf->digit, dtmf->duration);
dtmf->duration = switch_core_max_dtmf_duration(0);
} else if (dtmf->duration < switch_core_min_dtmf_duration(0)) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_WARNING, "%s SHORT DTMF DIGIT [%c] LEN [%d]\n",
switch_channel_get_name(channel), dtmf->digit, dtmf->duration);
dtmf->duration = switch_core_min_dtmf_duration(0);
} else if (!dtmf->duration) {
dtmf->duration = switch_core_default_dtmf_duration(0);
}
status = SWITCH_STATUS_SUCCESS;
}
switch_mutex_unlock(channel->dtmf_mutex);
if (status == SWITCH_STATUS_SUCCESS && switch_event_create(&event, SWITCH_EVENT_DTMF) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "DTMF-Digit", "%c", dtmf->digit);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "DTMF-Duration", "%u", dtmf->duration);
if (switch_channel_test_flag(channel, CF_DIVERT_EVENTS)) {
switch_core_session_queue_event(channel->session, &event);
} else {
switch_event_fire(&event);
}
}
return status;
}
SWITCH_DECLARE(switch_size_t) switch_channel_dequeue_dtmf_string(switch_channel_t *channel, char *dtmf_str, switch_size_t len)
{
switch_size_t x = 0;
switch_dtmf_t dtmf = { 0 };
memset(dtmf_str, 0, len);
while (x < len - 1 && switch_channel_dequeue_dtmf(channel, &dtmf) == SWITCH_STATUS_SUCCESS) {
dtmf_str[x++] = dtmf.digit;
}
return x;
}
SWITCH_DECLARE(void) switch_channel_flush_dtmf(switch_channel_t *channel)
{
void *pop;
switch_mutex_lock(channel->dtmf_mutex);
while (switch_queue_trypop(channel->dtmf_queue, &pop) == SWITCH_STATUS_SUCCESS) {
switch_dtmf_t *dt = (switch_dtmf_t *) pop;
if (channel->state >= CS_HANGUP || switch_queue_trypush(channel->dtmf_log_queue, dt) != SWITCH_STATUS_SUCCESS) {
free(dt);
}
}
switch_mutex_unlock(channel->dtmf_mutex);
}
SWITCH_DECLARE(void) switch_channel_uninit(switch_channel_t *channel)
{
void *pop;
switch_channel_flush_dtmf(channel);
while (switch_queue_trypop(channel->dtmf_log_queue, &pop) == SWITCH_STATUS_SUCCESS) {
switch_safe_free(pop);
}
switch_core_hash_destroy(&channel->private_hash);
if (channel->app_flag_hash) {
switch_core_hash_destroy(&channel->app_flag_hash);
}
switch_mutex_lock(channel->profile_mutex);
switch_event_destroy(&channel->variables);
switch_mutex_unlock(channel->profile_mutex);
}
SWITCH_DECLARE(switch_status_t) switch_channel_init(switch_channel_t *channel, switch_core_session_t *session, switch_channel_state_t state,
switch_channel_flag_t flag)
{
switch_assert(channel != NULL);
channel->state = state;
switch_channel_set_flag(channel, flag);
channel->session = session;
channel->running_state = CS_NONE;
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(void) switch_channel_perform_presence(switch_channel_t *channel, const char *rpid, const char *status, const char *id,
const char *file, const char *func, int line)
{
switch_event_t *event;
switch_event_types_t type = SWITCH_EVENT_PRESENCE_IN;
const char *call_info = NULL;
if (!status) {
type = SWITCH_EVENT_PRESENCE_OUT;
}
if (!id) {
id = switch_channel_get_variable(channel, "presence_id");
}
if (!id) {
return;
}
call_info = switch_channel_get_variable(channel, "presence_call_info");
if (switch_event_create(&event, type) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "proto", __FILE__);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "login", __FILE__);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "from", id);
if (type == SWITCH_EVENT_PRESENCE_IN) {
if (!rpid) {
rpid = "unknown";
}
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "rpid", rpid);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "status", status);
}
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "event_type", "presence");
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "alt_event_type", "dialog");
if (call_info) {
char *call_info_state = "active";
if (!switch_channel_up(channel)) {
call_info_state = "idle";
} else if (!strcasecmp(status, "hold-private")) {
call_info_state = "held-private";
} else if (!strcasecmp(status, "hold")) {
call_info_state = "held";
} else if (!switch_channel_test_flag(channel, CF_ANSWERED)) {
if (channel->direction == SWITCH_CALL_DIRECTION_OUTBOUND) {
call_info_state = "progressing";
} else {
call_info_state = "alerting";
}
}
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "presence-call-info-state", call_info_state);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "presence-call-info", call_info);
}
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "presence-call-direction",
channel->direction == SWITCH_CALL_DIRECTION_OUTBOUND ? "outbound" : "inbound");
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "event_count", "%d", channel->event_count++);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Presence-Calling-File", file);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Presence-Calling-Function", func);
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Presence-Calling-Line", "%d", line);
switch_event_fire(&event);
}
}
SWITCH_DECLARE(void) switch_channel_mark_hold(switch_channel_t *channel, switch_bool_t on)
{
switch_event_t *event;
if (!!on == !!switch_channel_test_flag(channel, CF_LEG_HOLDING)) {
return;
}
if (on) {
switch_channel_set_flag(channel, CF_LEG_HOLDING);
} else {
switch_channel_clear_flag(channel, CF_LEG_HOLDING);
}
if (switch_event_create(&event, on ? SWITCH_EVENT_CHANNEL_HOLD : SWITCH_EVENT_CHANNEL_UNHOLD) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_fire(&event);
}
}
SWITCH_DECLARE(const char *) switch_channel_get_hold_music(switch_channel_t *channel)
{
const char *var;
if (!(var = switch_channel_get_variable(channel, SWITCH_TEMP_HOLD_MUSIC_VARIABLE))) {
var = switch_channel_get_variable(channel, SWITCH_HOLD_MUSIC_VARIABLE);
}
return var;
}
SWITCH_DECLARE(const char *) switch_channel_get_hold_music_partner(switch_channel_t *channel)
{
switch_core_session_t *session;
const char *r = NULL;
if (switch_core_session_get_partner(channel->session, &session) == SWITCH_STATUS_SUCCESS) {
r = switch_channel_get_hold_music(switch_core_session_get_channel(session));
switch_core_session_rwunlock(session);
}
return r;
}
SWITCH_DECLARE(const char *) switch_channel_get_variable_dup(switch_channel_t *channel, const char *varname, switch_bool_t dup, int idx)
{
const char *v = NULL, *r = NULL, *vdup = NULL;
switch_assert(channel != NULL);
switch_mutex_lock(channel->profile_mutex);
if (!channel->variables || !(v = switch_event_get_header_idx(channel->variables, varname, idx))) {
switch_caller_profile_t *cp = channel->caller_profile;
if (cp) {
if (!strncmp(varname, "aleg_", 5)) {
cp = cp->originator_caller_profile;
varname += 5;
} else if (!strncmp(varname, "bleg_", 5)) {
cp = cp->originatee_caller_profile;
varname += 5;
}
}
if (!cp || !(v = switch_caller_get_field_by_name(cp, varname))) {
if ((vdup = switch_core_get_variable_pdup(varname, switch_core_session_get_pool(channel->session)))) {
v = vdup;
}
}
}
if (dup && v != vdup) {
if (v) {
r = switch_core_session_strdup(channel->session, v);
}
} else {
r = v;
}
switch_mutex_unlock(channel->profile_mutex);
return r;
}
SWITCH_DECLARE(const char *) switch_channel_get_variable_partner(switch_channel_t *channel, const char *varname)
{
const char *uuid;
const char *val = NULL, *r = NULL;
switch_assert(channel != NULL);
if (!zstr(varname)) {
if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))) {
switch_core_session_t *session;
if ((session = switch_core_session_locate(uuid))) {
switch_channel_t *tchannel = switch_core_session_get_channel(session);
val = switch_channel_get_variable(tchannel, varname);
switch_core_session_rwunlock(session);
}
}
}
if (val)
r = switch_core_session_strdup(channel->session, val);
return r;
}
SWITCH_DECLARE(void) switch_channel_variable_last(switch_channel_t *channel)
{
switch_assert(channel != NULL);
if (!channel->vi) {
return;
}
channel->vi = 0;
switch_mutex_unlock(channel->profile_mutex);
}
SWITCH_DECLARE(switch_event_header_t *) switch_channel_variable_first(switch_channel_t *channel)
{
switch_event_header_t *hi = NULL;
switch_assert(channel != NULL);
switch_mutex_lock(channel->profile_mutex);
if (channel->variables && (hi = channel->variables->headers)) {
channel->vi = 1;
} else {
switch_mutex_unlock(channel->profile_mutex);
}
return hi;
}
SWITCH_DECLARE(switch_status_t) switch_channel_set_private(switch_channel_t *channel, const char *key, const void *private_info)
{
switch_assert(channel != NULL);
switch_core_hash_insert_locked(channel->private_hash, key, private_info, channel->profile_mutex);
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(void *) switch_channel_get_private(switch_channel_t *channel, const char *key)
{
void *val;
switch_assert(channel != NULL);
val = switch_core_hash_find_locked(channel->private_hash, key, channel->profile_mutex);
return val;
}
SWITCH_DECLARE(void *) switch_channel_get_private_partner(switch_channel_t *channel, const char *key)
{
const char *uuid;
void *val = NULL;
switch_assert(channel != NULL);
if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))) {
switch_core_session_t *session;
if ((session = switch_core_session_locate(uuid))) {
val = switch_core_hash_find_locked(channel->private_hash, key, channel->profile_mutex);
switch_core_session_rwunlock(session);
}
}
return val;
}
SWITCH_DECLARE(switch_status_t) switch_channel_set_name(switch_channel_t *channel, const char *name)
{
const char *old = NULL;
switch_assert(channel != NULL);
if (!zstr(channel->name)) {
old = channel->name;
}
channel->name = NULL;
if (name) {
char *uuid = switch_core_session_get_uuid(channel->session);
channel->name = switch_core_session_strdup(channel->session, name);
switch_channel_set_variable(channel, SWITCH_CHANNEL_NAME_VARIABLE, name);
if (old) {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_NOTICE, "Rename Channel %s->%s [%s]\n", old, name, uuid);
} else {
switch_log_printf(SWITCH_CHANNEL_CHANNEL_LOG(channel), SWITCH_LOG_NOTICE, "New Channel %s [%s]\n", name, uuid);
}
}
return SWITCH_STATUS_SUCCESS;
}
SWITCH_DECLARE(char *) switch_channel_get_name(switch_channel_t *channel)
{
switch_assert(channel != NULL);
return (!zstr(channel->name)) ? channel->name : "N/A";
}
SWITCH_DECLARE(switch_status_t) switch_channel_set_profile_var(switch_channel_t *channel, const char *name, const char *val)
{
char *v;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_mutex_lock(channel->profile_mutex);
if (!zstr(val)) {
v = switch_core_strdup(channel->caller_profile->pool, val);
} else {
v = SWITCH_BLANK_STRING;
}
if (!strcasecmp(name, "dialplan")) {
channel->caller_profile->dialplan = v;
} else if (!strcasecmp(name, "username")) {
channel->caller_profile->username = v;
} else if (!strcasecmp(name, "caller_id_name")) {
channel->caller_profile->caller_id_name = v;
} else if (!strcasecmp(name, "caller_id_number")) {
channel->caller_profile->caller_id_number = v;
} else if (!strcasecmp(name, "callee_id_name")) {
channel->caller_profile->callee_id_name = v;
} else if (!strcasecmp(name, "callee_id_number")) {
channel->caller_profile->callee_id_number = v;
} else if (val && !strcasecmp(name, "caller_ton")) {
channel->caller_profile->caller_ton = (uint8_t) atoi(v);
} else if (val && !strcasecmp(name, "caller_numplan")) {
channel->caller_profile->caller_numplan = (uint8_t) atoi(v);
} else if (val && !strcasecmp(name, "destination_number_ton")) {
channel->caller_profile->destination_number_ton = (uint8_t) atoi(v);
} else if (val && !strcasecmp(name, "destination_number_numplan")) {
channel->caller_profile->destination_number_numplan = (uint8_t) atoi(v);
} else if (!strcasecmp(name, "ani")) {
channel->caller_profile->ani = v;
} else if (!strcasecmp(name, "aniii")) {
channel->caller_profile->aniii = v;
} else if (!strcasecmp(name, "network_addr")) {
channel->caller_profile->network_addr = v;
} else if (!strcasecmp(name, "rdnis")) {
channel->caller_profile->rdnis = v;
} else if (!strcasecmp(name, "destination_number")) {
channel->caller_profile->destination_number = v;
} else if (!strcasecmp(name, "uuid")) {
channel->caller_profile->uuid = v;
} else if (!strcasecmp(name, "source")) {
channel->caller_profile->source = v;
} else if (!strcasecmp(name, "context")) {
channel->caller_profile->context = v;
} else if (!strcasecmp(name, "chan_name")) {
channel->caller_profile->chan_name = v;
} else {
profile_node_t *pn, *n = switch_core_alloc(channel->caller_profile->pool, sizeof(*n));
n->var = switch_core_strdup(channel->caller_profile->pool, name);
n->val = v;
if (!channel->caller_profile->soft) {
channel->caller_profile->soft = n;
} else {
for(pn = channel->caller_profile->soft; pn && pn->next; pn = pn->next);
if (pn) {
pn->next = n;
}
}
}
switch_mutex_unlock(channel->profile_mutex);
return status;
}
SWITCH_DECLARE(void) switch_channel_process_export(switch_channel_t *channel, switch_channel_t *peer_channel,
switch_event_t *var_event, const char *export_varname)
{
const char *export_vars = switch_channel_get_variable(channel, export_varname);
char *cptmp = switch_core_session_strdup(channel->session, export_vars);
int argc;
char *argv[256];
if (zstr(export_vars)) return;
if (var_event) {
switch_event_del_header(var_event, export_varname);
switch_event_add_header_string(var_event, SWITCH_STACK_BOTTOM, export_varname, export_vars);
}
if (peer_channel) {
switch_channel_set_variable(peer_channel, export_varname, export_vars);
}
if ((argc = switch_separate_string(cptmp, ',', argv, (sizeof(argv) / sizeof(argv[0]))))) {
int x;
for (x = 0; x < argc; x++) {
const char *vval;
if ((vval = switch_channel_get_variable(channel, argv[x]))) {
char *vvar = argv[x];
if (!strncasecmp(vvar, "nolocal:", 8)) {
vvar += 8;
}
if (var_event) {
switch_event_del_header(var_event, vvar);
switch_event_add_header_string(var_event, SWITCH_STACK_BOTTOM, vvar, vval);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(channel->session), SWITCH_LOG_DEBUG,
"%s EXPORTING[%s] [%s]=[%s] to event\n",
switch_channel_get_name(channel),
export_varname,
vvar, vval);
}
if (peer_channel) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(channel->session), SWITCH_LOG_DEBUG,
"%s EXPORTING[%s] [%s]=[%s] to %s\n",
switch_channel_get_name(channel),
export_varname,
vvar, vval, switch_channel_get_name(peer_channel));
switch_channel_set_variable(peer_channel, vvar, vval);
}
}
}
}
}
SWITCH_DECLARE(switch_status_t) switch_channel_export_variable_var_check(switch_channel_t *channel,
const char *varname, const char *val,
const char *export_varname, switch_bool_t var_check)
{
char *var_name = NULL;
const char *exports;
char *var, *new_exports, *new_exports_d = NULL;
int local = 1;
exports = switch_channel_get_variable(channel, export_varname);
var = switch_core_session_strdup(channel->session, varname);
if (var) {
if (!strncasecmp(var, "nolocal:", 8)) {
var_name = var + 8;
local = 0;
} else {
var_name = var;
}
}
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(channel->session), SWITCH_LOG_DEBUG, "EXPORT (%s) %s[%s]=[%s]\n",
export_varname, local ? "" : "(REMOTE ONLY) ",
var_name ? var_name : "", val ? val : "UNDEF");
switch_channel_set_variable_var_check(channel, var, val, var_check);
if (var && val) {
if (exports) {
new_exports_d = switch_mprintf("%s,%s", exports, var);
new_exports = new_exports_d;
} else {
new_exports = var;
}
switch_channel_set_variable(channel, export_varname, new_exports);
switch_safe_free(new_exports_d);
}
return SWITCH_STATUS_SUCCESS;
}