static void *bridge_channel_control_thread(void *data)
{
struct bridge_channel_control_thread_data *thread_data = data;
struct ast_channel *bridge_channel = thread_data->bridge_channel;
struct stasis_app_control *control = thread_data->control;
struct stasis_forward *forward = thread_data->forward;
ast_callid callid = ast_channel_callid(bridge_channel);
char *bridge_id = ast_strdupa(thread_data->bridge_id);
if (callid) {
ast_callid_threadassoc_add(callid);
}
ast_free(thread_data);
thread_data = NULL;
stasis_app_control_execute_until_exhausted(bridge_channel, control);
stasis_app_control_flush_queue(control);
stasis_app_bridge_playback_channel_remove(bridge_id, control);
stasis_forward_cancel(forward);
ao2_cleanup(control);
ast_hangup(bridge_channel);
return NULL;
}
static int func_channel_read(struct ast_channel *chan, const char *function,
char *data, char *buf, size_t len)
{
int ret = 0;
struct ast_format_cap *tmpcap;
if (!chan) {
ast_log(LOG_WARNING, "No channel was provided to %s function.\n", function);
return -1;
}
if (!strcasecmp(data, "audionativeformat")) {
tmpcap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
if (tmpcap) {
struct ast_str *codec_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
ast_channel_lock(chan);
ast_format_cap_append_from_cap(tmpcap, ast_channel_nativeformats(chan), AST_MEDIA_TYPE_AUDIO);
ast_channel_unlock(chan);
ast_copy_string(buf, ast_format_cap_get_names(tmpcap, &codec_buf), len);
ao2_ref(tmpcap, -1);
}
} else if (!strcasecmp(data, "videonativeformat")) {
tmpcap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
if (tmpcap) {
struct ast_str *codec_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
ast_channel_lock(chan);
ast_format_cap_append_from_cap(tmpcap, ast_channel_nativeformats(chan), AST_MEDIA_TYPE_VIDEO);
ast_channel_unlock(chan);
ast_copy_string(buf, ast_format_cap_get_names(tmpcap, &codec_buf), len);
ao2_ref(tmpcap, -1);
}
} else if (!strcasecmp(data, "audioreadformat")) {
locked_copy_string(chan, buf, ast_format_get_name(ast_channel_readformat(chan)), len);
} else if (!strcasecmp(data, "audiowriteformat")) {
locked_copy_string(chan, buf, ast_format_get_name(ast_channel_writeformat(chan)), len);
#ifdef CHANNEL_TRACE
} else if (!strcasecmp(data, "trace")) {
locked_copy_string(chan, buf, ast_channel_trace_is_enabled(chan) ? "1" : "0", len);
#endif
} else if (!strcasecmp(data, "tonezone") && ast_channel_zone(chan)) {
locked_copy_string(chan, buf, ast_channel_zone(chan)->country, len);
} else if (!strcasecmp(data, "dtmf_features")) {
if (ast_bridge_features_ds_get_string(chan, buf, len)) {
buf[0] = '\0';
}
} else if (!strcasecmp(data, "language"))
locked_copy_string(chan, buf, ast_channel_language(chan), len);
else if (!strcasecmp(data, "musicclass"))
locked_copy_string(chan, buf, ast_channel_musicclass(chan), len);
else if (!strcasecmp(data, "name")) {
locked_copy_string(chan, buf, ast_channel_name(chan), len);
} else if (!strcasecmp(data, "parkinglot"))
locked_copy_string(chan, buf, ast_channel_parkinglot(chan), len);
else if (!strcasecmp(data, "state"))
locked_copy_string(chan, buf, ast_state2str(ast_channel_state(chan)), len);
else if (!strcasecmp(data, "onhold")) {
locked_copy_string(chan, buf,
ast_channel_hold_state(chan) == AST_CONTROL_HOLD ? "1" : "0", len);
} else if (!strcasecmp(data, "channeltype"))
locked_copy_string(chan, buf, ast_channel_tech(chan)->type, len);
else if (!strcasecmp(data, "accountcode"))
locked_copy_string(chan, buf, ast_channel_accountcode(chan), len);
else if (!strcasecmp(data, "checkhangup")) {
locked_copy_string(chan, buf, ast_check_hangup(chan) ? "1" : "0", len);
} else if (!strcasecmp(data, "peeraccount"))
locked_copy_string(chan, buf, ast_channel_peeraccount(chan), len);
else if (!strcasecmp(data, "hangupsource"))
locked_copy_string(chan, buf, ast_channel_hangupsource(chan), len);
else if (!strcasecmp(data, "appname") && ast_channel_appl(chan))
locked_copy_string(chan, buf, ast_channel_appl(chan), len);
else if (!strcasecmp(data, "appdata") && ast_channel_data(chan))
locked_copy_string(chan, buf, ast_channel_data(chan), len);
else if (!strcasecmp(data, "exten") && ast_channel_data(chan))
locked_copy_string(chan, buf, ast_channel_exten(chan), len);
else if (!strcasecmp(data, "context") && ast_channel_data(chan))
locked_copy_string(chan, buf, ast_channel_context(chan), len);
else if (!strcasecmp(data, "userfield") && ast_channel_data(chan))
locked_copy_string(chan, buf, ast_channel_userfield(chan), len);
else if (!strcasecmp(data, "channame") && ast_channel_data(chan))
locked_copy_string(chan, buf, ast_channel_name(chan), len);
else if (!strcasecmp(data, "linkedid")) {
ast_channel_lock(chan);
if (ast_strlen_zero(ast_channel_linkedid(chan))) {
/* fall back on the channel's uniqueid if linkedid is unset */
ast_copy_string(buf, ast_channel_uniqueid(chan), len);
}
else {
ast_copy_string(buf, ast_channel_linkedid(chan), len);
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "peer")) {
struct ast_channel *peer;
peer = ast_channel_bridge_peer(chan);
if (peer) {
/* Only real channels could have a bridge peer this way. */
ast_channel_lock(peer);
ast_copy_string(buf, ast_channel_name(peer), len);
ast_channel_unlock(peer);
ast_channel_unref(peer);
} else {
buf[0] = '\0';
ast_channel_lock(chan);
if (!ast_channel_tech(chan)) {
const char *pname;
/*
* A dummy channel can still pass along bridged peer info
* via the BRIDGEPEER variable.
*
* A horrible kludge, but... how else?
*/
pname = pbx_builtin_getvar_helper(chan, "BRIDGEPEER");
if (!ast_strlen_zero(pname)) {
ast_copy_string(buf, pname, len);
}
}
ast_channel_unlock(chan);
}
} else if (!strcasecmp(data, "uniqueid")) {
locked_copy_string(chan, buf, ast_channel_uniqueid(chan), len);
} else if (!strcasecmp(data, "transfercapability")) {
locked_copy_string(chan, buf, transfercapability_table[ast_channel_transfercapability(chan) & 0x1f], len);
} else if (!strcasecmp(data, "callgroup")) {
char groupbuf[256];
locked_copy_string(chan, buf, ast_print_group(groupbuf, sizeof(groupbuf), ast_channel_callgroup(chan)), len);
} else if (!strcasecmp(data, "pickupgroup")) {
char groupbuf[256];
locked_copy_string(chan, buf, ast_print_group(groupbuf, sizeof(groupbuf), ast_channel_pickupgroup(chan)), len);
} else if (!strcasecmp(data, "namedcallgroup")) {
struct ast_str *tmp_str = ast_str_alloca(1024);
locked_copy_string(chan, buf, ast_print_namedgroups(&tmp_str, ast_channel_named_callgroups(chan)), len);
} else if (!strcasecmp(data, "namedpickupgroup")) {
struct ast_str *tmp_str = ast_str_alloca(1024);
locked_copy_string(chan, buf, ast_print_namedgroups(&tmp_str, ast_channel_named_pickupgroups(chan)), len);
} else if (!strcasecmp(data, "after_bridge_goto")) {
ast_bridge_read_after_goto(chan, buf, len);
} else if (!strcasecmp(data, "amaflags")) {
ast_channel_lock(chan);
snprintf(buf, len, "%u", ast_channel_amaflags(chan));
ast_channel_unlock(chan);
} else if (!strncasecmp(data, "secure_bridge_", 14)) {
struct ast_datastore *ds;
buf[0] = '\0';
ast_channel_lock(chan);
if ((ds = ast_channel_datastore_find(chan, &secure_call_info, NULL))) {
struct ast_secure_call_store *encrypt = ds->data;
if (!strcasecmp(data, "secure_bridge_signaling")) {
snprintf(buf, len, "%s", encrypt->signaling ? "1" : "");
} else if (!strcasecmp(data, "secure_bridge_media")) {
snprintf(buf, len, "%s", encrypt->media ? "1" : "");
}
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "max_forwards")) {
ast_channel_lock(chan);
snprintf(buf, len, "%d", ast_max_forwards_get(chan));
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "callid")) {
ast_callid callid;
buf[0] = '\0';
ast_channel_lock(chan);
callid = ast_channel_callid(chan);
if (callid) {
ast_callid_strnprint(buf, len, callid);
}
ast_channel_unlock(chan);
} else if (!ast_channel_tech(chan) || !ast_channel_tech(chan)->func_channel_read || ast_channel_tech(chan)->func_channel_read(chan, function, data, buf, len)) {
ast_log(LOG_WARNING, "Unknown or unavailable item requested: '%s'\n", data);
ret = -1;
}
return ret;
}
struct ast_channel_snapshot *ast_channel_snapshot_create(struct ast_channel *chan)
{
struct ast_channel_snapshot *snapshot;
struct ast_bridge *bridge;
char nativeformats[256];
struct ast_str *write_transpath = ast_str_alloca(256);
struct ast_str *read_transpath = ast_str_alloca(256);
struct ast_party_id effective_connected_id;
struct ast_callid *callid;
/* no snapshots for dummy channels */
if (!ast_channel_tech(chan)) {
return NULL;
}
snapshot = ao2_alloc(sizeof(*snapshot), channel_snapshot_dtor);
if (!snapshot || ast_string_field_init(snapshot, 1024)) {
ao2_cleanup(snapshot);
return NULL;
}
ast_string_field_set(snapshot, name, ast_channel_name(chan));
ast_string_field_set(snapshot, type, ast_channel_tech(chan)->type);
ast_string_field_set(snapshot, accountcode, ast_channel_accountcode(chan));
ast_string_field_set(snapshot, peeraccount, ast_channel_peeraccount(chan));
ast_string_field_set(snapshot, userfield, ast_channel_userfield(chan));
ast_string_field_set(snapshot, uniqueid, ast_channel_uniqueid(chan));
ast_string_field_set(snapshot, linkedid, ast_channel_linkedid(chan));
ast_string_field_set(snapshot, hangupsource, ast_channel_hangupsource(chan));
if (ast_channel_appl(chan)) {
ast_string_field_set(snapshot, appl, ast_channel_appl(chan));
}
if (ast_channel_data(chan)) {
ast_string_field_set(snapshot, data, ast_channel_data(chan));
}
ast_string_field_set(snapshot, context, ast_channel_context(chan));
ast_string_field_set(snapshot, exten, ast_channel_exten(chan));
ast_string_field_set(snapshot, caller_name,
S_COR(ast_channel_caller(chan)->id.name.valid, ast_channel_caller(chan)->id.name.str, ""));
ast_string_field_set(snapshot, caller_number,
S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, ""));
ast_string_field_set(snapshot, caller_dnid, S_OR(ast_channel_dialed(chan)->number.str, ""));
ast_string_field_set(snapshot, caller_subaddr,
S_COR(ast_channel_caller(chan)->id.subaddress.valid, ast_channel_caller(chan)->id.subaddress.str, ""));
ast_string_field_set(snapshot, dialed_subaddr,
S_COR(ast_channel_dialed(chan)->subaddress.valid, ast_channel_dialed(chan)->subaddress.str, ""));
ast_string_field_set(snapshot, caller_ani,
S_COR(ast_channel_caller(chan)->ani.number.valid, ast_channel_caller(chan)->ani.number.str, ""));
ast_string_field_set(snapshot, caller_rdnis,
S_COR(ast_channel_redirecting(chan)->from.number.valid, ast_channel_redirecting(chan)->from.number.str, ""));
ast_string_field_set(snapshot, caller_dnid,
S_OR(ast_channel_dialed(chan)->number.str, ""));
ast_string_field_set(snapshot, connected_name,
S_COR(ast_channel_connected(chan)->id.name.valid, ast_channel_connected(chan)->id.name.str, ""));
ast_string_field_set(snapshot, connected_number,
S_COR(ast_channel_connected(chan)->id.number.valid, ast_channel_connected(chan)->id.number.str, ""));
ast_string_field_set(snapshot, language, ast_channel_language(chan));
if ((bridge = ast_channel_get_bridge(chan))) {
ast_string_field_set(snapshot, bridgeid, bridge->uniqueid);
ao2_cleanup(bridge);
}
ast_string_field_set(snapshot, nativeformats, ast_getformatname_multiple(nativeformats, sizeof(nativeformats),
ast_channel_nativeformats(chan)));
ast_string_field_set(snapshot, readformat, ast_getformatname(ast_channel_readformat(chan)));
ast_string_field_set(snapshot, writeformat, ast_getformatname(ast_channel_writeformat(chan)));
ast_string_field_set(snapshot, writetrans, ast_translate_path_to_str(ast_channel_writetrans(chan), &write_transpath));
ast_string_field_set(snapshot, readtrans, ast_translate_path_to_str(ast_channel_readtrans(chan), &read_transpath));
effective_connected_id = ast_channel_connected_effective_id(chan);
ast_string_field_set(snapshot, effective_name,
S_COR(effective_connected_id.name.valid, effective_connected_id.name.str, ""));
ast_string_field_set(snapshot, effective_number,
S_COR(effective_connected_id.number.valid, effective_connected_id.number.str, ""));
if ((callid = ast_channel_callid(chan))) {
ast_callid_strnprint(snapshot->callid, sizeof(snapshot->callid), callid);
ast_callid_unref(callid);
}
snapshot->creationtime = ast_channel_creationtime(chan);
snapshot->hanguptime = *(ast_channel_whentohangup(chan));
snapshot->state = ast_channel_state(chan);
snapshot->priority = ast_channel_priority(chan);
snapshot->amaflags = ast_channel_amaflags(chan);
snapshot->hangupcause = ast_channel_hangupcause(chan);
ast_copy_flags(&snapshot->flags, ast_channel_flags(chan), 0xFFFFFFFF);
snapshot->caller_pres = ast_party_id_presentation(&ast_channel_caller(chan)->id);
snapshot->callgroup = ast_channel_callgroup(chan);
snapshot->pickupgroup = ast_channel_pickupgroup(chan);
ast_set_flag(&snapshot->softhangup_flags, ast_channel_softhangup_internal_flag(chan));
snapshot->manager_vars = ast_channel_get_manager_vars(chan);
snapshot->channel_vars = ast_channel_get_vars(chan);
snapshot->tech_properties = ast_channel_tech(chan)->properties;
return snapshot;
}
int ast_unreal_channel_push_to_bridge(struct ast_channel *ast, struct ast_bridge *bridge, unsigned int flags)
{
struct ast_bridge_features *features;
struct ast_channel *chan;
struct ast_channel *owner;
RAII_VAR(struct ast_unreal_pvt *, p, NULL, ao2_cleanup);
RAII_VAR(struct ast_callid *, bridge_callid, NULL, ast_callid_cleanup);
ast_bridge_lock(bridge);
bridge_callid = bridge->callid ? ast_callid_ref(bridge->callid) : NULL;
ast_bridge_unlock(bridge);
{
SCOPED_CHANNELLOCK(lock, ast);
p = ast_channel_tech_pvt(ast);
if (!p) {
return -1;
}
ao2_ref(p, +1);
}
{
SCOPED_AO2LOCK(lock, p);
chan = p->chan;
if (!chan) {
return -1;
}
owner = p->owner;
if (!owner) {
return -1;
}
ast_channel_ref(chan);
ast_channel_ref(owner);
}
if (bridge_callid) {
struct ast_callid *chan_callid;
struct ast_callid *owner_callid;
/* chan side call ID setting */
ast_channel_lock(chan);
chan_callid = ast_channel_callid(chan);
if (!chan_callid) {
ast_channel_callid_set(chan, bridge_callid);
}
ast_channel_unlock(chan);
ast_callid_cleanup(chan_callid);
/* owner side call ID setting */
ast_channel_lock(owner);
owner_callid = ast_channel_callid(owner);
if (!owner_callid) {
ast_channel_callid_set(owner, bridge_callid);
}
ast_channel_unlock(owner);
ast_callid_cleanup(owner_callid);
}
/* We are done with the owner now that its call ID matches the bridge */
ast_channel_unref(owner);
owner = NULL;
features = ast_bridge_features_new();
if (!features) {
ast_channel_unref(chan);
return -1;
}
ast_set_flag(&features->feature_flags, flags);
/* Impart the semi2 channel into the bridge */
if (ast_bridge_impart(bridge, chan, NULL, features,
AST_BRIDGE_IMPART_CHAN_INDEPENDENT)) {
ast_bridge_features_destroy(features);
ast_channel_unref(chan);
return -1;
}
ao2_lock(p);
ast_set_flag(p, AST_UNREAL_CARETAKER_THREAD);
ao2_unlock(p);
ast_channel_unref(chan);
return 0;
}
