static int setup_mixmonitor_ds(struct mixmonitor *mixmonitor, struct ast_channel *chan, char **datastore_id)
{
struct ast_datastore *datastore = NULL;
struct mixmonitor_ds *mixmonitor_ds;
if (!(mixmonitor_ds = ast_calloc(1, sizeof(*mixmonitor_ds)))) {
return -1;
}
if (ast_asprintf(datastore_id, "%p", mixmonitor_ds) == -1) {
ast_log(LOG_ERROR, "Failed to allocate memory for MixMonitor ID.\n");
}
ast_mutex_init(&mixmonitor_ds->lock);
ast_cond_init(&mixmonitor_ds->destruction_condition, NULL);
if (!(datastore = ast_datastore_alloc(&mixmonitor_ds_info, *datastore_id))) {
ast_mutex_destroy(&mixmonitor_ds->lock);
ast_cond_destroy(&mixmonitor_ds->destruction_condition);
ast_free(mixmonitor_ds);
return -1;
}
mixmonitor_ds->samp_rate = 8000;
mixmonitor_ds->audiohook = &mixmonitor->audiohook;
datastore->data = mixmonitor_ds;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
mixmonitor->mixmonitor_ds = mixmonitor_ds;
return 0;
}
/*! \brief SpeechCreate() Dialplan Application */
static int speech_create(struct ast_channel *chan, const char *data)
{
struct ast_speech *speech = NULL;
struct ast_datastore *datastore = NULL;
/* Request a speech object */
speech = ast_speech_new(data, ast_channel_nativeformats(chan));
if (speech == NULL) {
/* Not available */
pbx_builtin_setvar_helper(chan, "ERROR", "1");
return 0;
}
datastore = ast_datastore_alloc(&speech_datastore, NULL);
if (datastore == NULL) {
ast_speech_destroy(speech);
pbx_builtin_setvar_helper(chan, "ERROR", "1");
return 0;
}
pbx_builtin_setvar_helper(chan, "ERROR", NULL);
datastore->data = speech;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
return 0;
}
static int setup_mixmonitor_ds(struct mixmonitor *mixmonitor, struct ast_channel *chan)
{
struct ast_datastore *datastore = NULL;
struct mixmonitor_ds *mixmonitor_ds;
if (!(mixmonitor_ds = ast_calloc(1, sizeof(*mixmonitor_ds)))) {
return -1;
}
ast_mutex_init(&mixmonitor_ds->lock);
ast_cond_init(&mixmonitor_ds->destruction_condition, NULL);
if (!(datastore = ast_datastore_alloc(&mixmonitor_ds_info, NULL))) {
ast_mutex_destroy(&mixmonitor_ds->lock);
ast_cond_destroy(&mixmonitor_ds->destruction_condition);
ast_free(mixmonitor_ds);
return -1;
}
/* No need to lock mixmonitor_ds since this is still operating in the channel's thread */
mixmonitor_ds->chan = chan;
mixmonitor_ds->audiohook = &mixmonitor->audiohook;
datastore->data = mixmonitor_ds;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
mixmonitor->mixmonitor_ds = mixmonitor_ds;
return 0;
}
static struct srv_context *srv_datastore_setup(const char *service, struct ast_channel *chan)
{
struct srv_result_datastore *srds;
struct ast_datastore *datastore;
const char *host;
unsigned short port;
if (!(srds = ast_calloc(1, sizeof(*srds) + strlen(service)))) {
return NULL;
}
ast_autoservice_start(chan);
if (ast_srv_lookup(&srds->context, service, &host, &port) < 0) {
ast_autoservice_stop(chan);
ast_log(LOG_NOTICE, "Error performing lookup of service '%s'\n", service);
ast_free(srds);
return NULL;
}
ast_autoservice_stop(chan);
strcpy(srds->id, service);
if (!(datastore = ast_datastore_alloc(&srv_result_datastore_info, srds->id))) {
ast_srv_cleanup(&srds->context);
ast_free(srds);
return NULL;
}
datastore->data = srds;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
return srds->context;
}
/*!
* \internal
* \brief Set the features datastore if it doesn't exist.
*
* \param chan Channel to add features datastore
* \param my_features The channel's feature flags
* \param peer_features The channel's bridge peer feature flags
*
* \retval TRUE if features datastore already existed.
*/
static int add_features_datastore(struct ast_channel *chan, const struct ast_flags *my_features, const struct ast_flags *peer_features)
{
struct ast_datastore *datastore;
struct ast_dial_features *dialfeatures;
ast_channel_lock(chan);
datastore = ast_channel_datastore_find(chan, &dial_features_info, NULL);
ast_channel_unlock(chan);
if (datastore) {
/* Already exists. */
return 1;
}
/* Create a new datastore with specified feature flags. */
datastore = ast_datastore_alloc(&dial_features_info, NULL);
if (!datastore) {
ast_log(LOG_WARNING, "Unable to create channel features datastore.\n");
return 0;
}
dialfeatures = ast_calloc(1, sizeof(*dialfeatures));
if (!dialfeatures) {
ast_log(LOG_WARNING, "Unable to allocate memory for feature flags.\n");
ast_datastore_free(datastore);
return 0;
}
ast_copy_flags(&dialfeatures->my_features, my_features, AST_FLAGS_ALL);
ast_copy_flags(&dialfeatures->peer_features, peer_features, AST_FLAGS_ALL);
datastore->inheritance = DATASTORE_INHERIT_FOREVER;
datastore->data = dialfeatures;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
return 0;
}
/*! \brief SpeechCreate() Dialplan Application */
static int speech_create(struct ast_channel *chan, void *data)
{
struct ast_module_user *u = NULL;
struct ast_speech *speech = NULL;
struct ast_datastore *datastore = NULL;
u = ast_module_user_add(chan);
/* Request a speech object */
speech = ast_speech_new(data, AST_FORMAT_SLINEAR);
if (speech == NULL) {
/* Not available */
pbx_builtin_setvar_helper(chan, "ERROR", "1");
ast_module_user_remove(u);
return 0;
}
datastore = ast_channel_datastore_alloc(&speech_datastore, NULL);
if (datastore == NULL) {
ast_speech_destroy(speech);
pbx_builtin_setvar_helper(chan, "ERROR", "1");
ast_module_user_remove(u);
return 0;
}
datastore->data = speech;
ast_channel_datastore_add(chan, datastore);
pbx_builtin_setvar_helper(chan, "ERROR", NULL);
ast_module_user_remove(u);
return 0;
}
static int frame_trace_helper(struct ast_channel *chan, const char *cmd, char *data, const char *value)
{
struct frame_trace_data *framedata;
struct ast_datastore *datastore = NULL;
struct ast_framehook_interface interface = {
.version = AST_FRAMEHOOK_INTERFACE_VERSION,
.event_cb = hook_event_cb,
.destroy_cb = hook_destroy_cb,
};
int i = 0;
if (!(framedata = ast_calloc(1, sizeof(*framedata)))) {
return 0;
}
interface.data = framedata;
if (!strcasecmp(data, "black")) {
framedata->list_type = 1;
}
for (i = 0; i < ARRAY_LEN(frametype2str); i++) {
if (strcasestr(value, frametype2str[i].str)) {
framedata->values[i] = 1;
}
}
ast_channel_lock(chan);
i = ast_framehook_attach(chan, &interface);
if (i >= 0) {
int *id;
if ((datastore = ast_channel_datastore_find(chan, &frame_trace_datastore, NULL))) {
id = datastore->data;
ast_framehook_detach(chan, *id);
ast_channel_datastore_remove(chan, datastore);
}
if (!(datastore = ast_datastore_alloc(&frame_trace_datastore, NULL))) {
ast_framehook_detach(chan, i);
ast_channel_unlock(chan);
return 0;
}
if (!(id = ast_calloc(1, sizeof(int)))) {
ast_datastore_free(datastore);
ast_framehook_detach(chan, i);
ast_channel_unlock(chan);
return 0;
}
*id = i; /* Store off the id. The channel is still locked so it is safe to access this ptr. */
datastore->data = id;
ast_channel_datastore_add(chan, datastore);
}
ast_channel_unlock(chan);
return 0;
}
/*! \brief Add or activate mute audiohook on channel
Assumes channel is locked
*/
static int mute_add_audiohook(struct ast_channel *chan, struct mute_information *mute, struct ast_datastore *datastore)
{
/* Activate the settings */
ast_channel_datastore_add(chan, datastore);
if (ast_audiohook_attach(chan, &mute->audiohook)) {
ast_log(LOG_ERROR, "Failed to attach audiohook for muting channel %s\n", ast_channel_name(chan));
return -1;
}
ast_module_ref(ast_module_info->self);
ast_debug(2, "Initialized audiohook on channel %s\n", ast_channel_name(chan));
return 0;
}
static int create_parked_subscription_full(struct ast_channel *chan, const char *parkee_uuid, int hangup_after,
struct transfer_channel_data *parked_channel_data)
{
struct ast_datastore *datastore;
struct parked_subscription_datastore *parked_datastore;
struct parked_subscription_data *subscription_data;
char *parker_uuid = ast_strdupa(ast_channel_uniqueid(chan));
size_t parker_uuid_size = strlen(parker_uuid) + 1;
/* If there is already a subscription, get rid of it. */
wipe_subscription_datastore(chan);
if (!(datastore = ast_datastore_alloc(&parked_subscription_info, NULL))) {
return -1;
}
if (!(parked_datastore = ast_calloc(1, sizeof(*parked_datastore)))) {
ast_datastore_free(datastore);
return -1;
}
if (!(subscription_data = ast_calloc(1, sizeof(*subscription_data) + parker_uuid_size +
strlen(parkee_uuid) + 1))) {
ast_datastore_free(datastore);
ast_free(parked_datastore);
return -1;
}
if (parked_channel_data) {
subscription_data->transfer_data = parked_channel_data;
ao2_ref(parked_channel_data, +1);
}
subscription_data->hangup_after = hangup_after;
subscription_data->parkee_uuid = subscription_data->parker_uuid + parker_uuid_size;
strcpy(subscription_data->parkee_uuid, parkee_uuid);
strcpy(subscription_data->parker_uuid, parker_uuid);
if (!(parked_datastore->parked_subscription = stasis_subscribe_pool(ast_parking_topic(), parker_update_cb, subscription_data))) {
return -1;
}
datastore->data = parked_datastore;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
return 0;
}
/*! \brief Function called to attach T.38 framehook to channel when appropriate */
static void t38_attach_framehook(struct ast_sip_session *session)
{
int framehook_id;
struct ast_datastore *datastore = NULL;
static struct ast_framehook_interface hook = {
.version = AST_FRAMEHOOK_INTERFACE_VERSION,
.event_cb = t38_framehook,
.consume_cb = t38_consume,
.chan_fixup_cb = t38_masq,
.chan_breakdown_cb = t38_masq,
};
/* If the channel's already gone, bail */
if (!session->channel) {
return;
}
/* Only attach the framehook if t38 is enabled for the endpoint */
if (!session->endpoint->media.t38.enabled) {
return;
}
/* Skip attaching the framehook if the T.38 datastore already exists for the channel */
ast_channel_lock(session->channel);
if ((datastore = ast_channel_datastore_find(session->channel, &t38_framehook_datastore, NULL))) {
ast_channel_unlock(session->channel);
return;
}
ast_channel_unlock(session->channel);
framehook_id = ast_framehook_attach(session->channel, &hook);
if (framehook_id < 0) {
ast_log(LOG_WARNING, "Could not attach T.38 Frame hook to channel, T.38 will be unavailable on '%s'\n",
ast_channel_name(session->channel));
return;
}
ast_channel_lock(session->channel);
datastore = ast_datastore_alloc(&t38_framehook_datastore, NULL);
if (!datastore) {
ast_log(LOG_ERROR, "Could not attach T.38 Frame hook to channel, T.38 will be unavailable on '%s'\n",
ast_channel_name(session->channel));
ast_framehook_detach(session->channel, framehook_id);
ast_channel_unlock(session->channel);
return;
}
ast_channel_datastore_add(session->channel, datastore);
ast_channel_unlock(session->channel);
}
/*! \internal \brief Enable talk detection on the channel */
static int set_talk_detect(struct ast_channel *chan, int dsp_silence_threshold, int dsp_talking_threshold)
{
struct ast_datastore *datastore = NULL;
struct talk_detect_params *td_params;
SCOPED_CHANNELLOCK(chan_lock, chan);
datastore = ast_channel_datastore_find(chan, &talk_detect_datastore, NULL);
if (!datastore) {
datastore = ast_datastore_alloc(&talk_detect_datastore, NULL);
if (!datastore) {
return -1;
}
td_params = ast_calloc(1, sizeof(*td_params));
if (!td_params) {
ast_datastore_free(datastore);
return -1;
}
ast_audiohook_init(&td_params->audiohook,
AST_AUDIOHOOK_TYPE_MANIPULATE,
"TALK_DETECT",
AST_AUDIOHOOK_MANIPULATE_ALL_RATES);
td_params->audiohook.manipulate_callback = talk_detect_audiohook_cb;
ast_set_flag(&td_params->audiohook, AST_AUDIOHOOK_TRIGGER_READ);
td_params->dsp = ast_dsp_new_with_rate(ast_format_get_sample_rate(ast_channel_rawreadformat(chan)));
if (!td_params->dsp) {
ast_datastore_free(datastore);
ast_free(td_params);
return -1;
}
datastore->data = td_params;
ast_channel_datastore_add(chan, datastore);
ast_audiohook_attach(chan, &td_params->audiohook);
} else {
/* Talk detection already enabled; update existing settings */
td_params = datastore->data;
}
td_params->dsp_talking_threshold = dsp_talking_threshold;
td_params->dsp_silence_threshold = dsp_silence_threshold;
ast_dsp_set_threshold(td_params->dsp, td_params->dsp_talking_threshold);
return 0;
}
/*! \note Returns the channel in the chanspy_ds locked as well as the chanspy_ds locked */
static struct chanspy_ds *setup_chanspy_ds(struct ast_channel *chan, struct chanspy_ds *chanspy_ds)
{
struct ast_datastore *datastore = NULL;
ast_mutex_lock(&chanspy_ds->lock);
if (!(datastore = ast_channel_datastore_alloc(&chanspy_ds_info, chanspy_ds->unique_id))) {
ast_mutex_unlock(&chanspy_ds->lock);
chanspy_ds = chanspy_ds_free(chanspy_ds);
ast_channel_unlock(chan);
return NULL;
}
chanspy_ds->chan = chan;
datastore->data = chanspy_ds;
ast_channel_datastore_add(chan, datastore);
return chanspy_ds;
}
/*!
* \brief Set dial timeout on a channel to be dialed.
*
* \param chan The channel on which to set the dial timeout
* \param timeout The timeout in seconds
*/
static int set_timeout(struct ast_channel *chan, unsigned int timeout)
{
struct ast_datastore *datastore;
struct timeval *hangup_time;
hangup_time = ast_malloc(sizeof(struct timeval));
datastore = ast_datastore_alloc(&timeout_datastore, NULL);
if (!datastore) {
return -1;
}
*hangup_time = ast_tvadd(ast_tvnow(), ast_samp2tv(timeout, 1));
datastore->data = hangup_time;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
if (ast_channel_is_bridged(chan)) {
set_interval_hook(chan);
}
ast_channel_unlock(chan);
return 0;
}
static int volume_write(struct ast_channel *chan, const char *cmd, char *data, const char *value)
{
struct ast_datastore *datastore = NULL;
struct volume_information *vi = NULL;
int is_new = 0;
if (!(datastore = ast_channel_datastore_find(chan, &volume_datastore, NULL))) {
/* Allocate a new datastore to hold the reference to this volume and audiohook information */
if (!(datastore = ast_datastore_alloc(&volume_datastore, NULL)))
return 0;
if (!(vi = ast_calloc(1, sizeof(*vi)))) {
ast_datastore_free(datastore);
return 0;
}
ast_audiohook_init(&vi->audiohook, AST_AUDIOHOOK_TYPE_MANIPULATE, "Volume");
vi->audiohook.manipulate_callback = volume_callback;
ast_set_flag(&vi->audiohook, AST_AUDIOHOOK_WANTS_DTMF);
is_new = 1;
} else {
vi = datastore->data;
}
/* Adjust gain on volume information structure */
if (!strcasecmp(data, "tx"))
vi->tx_gain = atoi(value);
else if (!strcasecmp(data, "rx"))
vi->rx_gain = atoi(value);
if (is_new) {
datastore->data = vi;
ast_channel_datastore_add(chan, datastore);
ast_audiohook_attach(chan, &vi->audiohook);
}
return 0;
}
static void *hook_launch_thread(void *data)
{
struct hook_thread_arg *arg = data;
struct ast_variable hook_id = {
.name = "HOOK_ID",
.value = arg->hook_id,
};
struct ast_variable chan_name_var = {
.name = "HOOK_CHANNEL",
.value = arg->chan_name,
.next = &hook_id,
};
ast_pbx_outgoing_exten("Local", NULL, full_exten_name, 60,
arg->context, arg->exten, 1, NULL, AST_OUTGOING_NO_WAIT,
NULL, NULL, &chan_name_var, NULL, NULL, 1, NULL);
hook_thread_arg_destroy(arg);
return NULL;
}
static struct hook_thread_arg *hook_thread_arg_alloc(struct ast_channel *chan,
struct hook_state *state)
{
struct hook_thread_arg *arg;
if (!(arg = ast_calloc(1, sizeof(*arg)))) {
return NULL;
}
ast_channel_lock(chan);
arg->chan_name = ast_strdup(ast_channel_name(chan));
ast_channel_unlock(chan);
if (!arg->chan_name) {
hook_thread_arg_destroy(arg);
return NULL;
}
if (ast_asprintf(&arg->hook_id, "%u", state->hook_id) == -1) {
hook_thread_arg_destroy(arg);
return NULL;
}
if (!(arg->context = ast_strdup(state->context))) {
hook_thread_arg_destroy(arg);
return NULL;
}
if (!(arg->exten = ast_strdup(state->exten))) {
hook_thread_arg_destroy(arg);
return NULL;
}
return arg;
}
static int do_hook(struct ast_channel *chan, struct hook_state *state)
{
pthread_t t;
struct hook_thread_arg *arg;
int res;
if (!(arg = hook_thread_arg_alloc(chan, state))) {
return -1;
}
/*
* We don't want to block normal frame processing *at all* while we kick
* this off, so do it in a new thread.
*/
res = ast_pthread_create_detached_background(&t, NULL, hook_launch_thread, arg);
if (res != 0) {
hook_thread_arg_destroy(arg);
}
return res;
}
static int hook_callback(struct ast_audiohook *audiohook, struct ast_channel *chan,
struct ast_frame *frame, enum ast_audiohook_direction direction)
{
struct hook_state *state = (struct hook_state *) audiohook; /* trust me. */
struct timeval now;
int res = 0;
if (audiohook->status == AST_AUDIOHOOK_STATUS_DONE || state->disabled) {
return 0;
}
now = ast_tvnow();
if (ast_tvdiff_ms(now, state->last_hook) > state->interval * 1000) {
if ((res = do_hook(chan, state))) {
const char *name;
ast_channel_lock(chan);
name = ast_strdupa(ast_channel_name(chan));
ast_channel_unlock(chan);
ast_log(LOG_WARNING, "Failed to run hook on '%s'\n", name);
}
state->last_hook = now;
}
return res;
}
static struct hook_state *hook_state_alloc(const char *context, const char *exten,
unsigned int interval, unsigned int hook_id)
{
struct hook_state *state;
if (!(state = ast_calloc(1, sizeof(*state)))) {
return NULL;
}
state->context = ast_strdup(context);
state->exten = ast_strdup(exten);
state->interval = interval;
state->hook_id = hook_id;
ast_audiohook_init(&state->audiohook, AST_AUDIOHOOK_TYPE_MANIPULATE,
AST_MODULE, AST_AUDIOHOOK_MANIPULATE_ALL_RATES);
state->audiohook.manipulate_callback = hook_callback;
return state;
}
static int init_hook(struct ast_channel *chan, const char *context, const char *exten,
unsigned int interval, unsigned int hook_id)
{
struct hook_state *state;
struct ast_datastore *datastore;
char uid[32];
snprintf(uid, sizeof(uid), "%u", hook_id);
if (!(datastore = ast_datastore_alloc(&hook_datastore, uid))) {
return -1;
}
ast_module_ref(ast_module_info->self);
if (!(state = hook_state_alloc(context, exten, interval, hook_id))) {
ast_datastore_free(datastore);
return -1;
}
datastore->data = state;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_audiohook_attach(chan, &state->audiohook);
ast_channel_unlock(chan);
return 0;
}
static int hook_on(struct ast_channel *chan, const char *data, unsigned int hook_id)
{
char *parse = ast_strdupa(S_OR(data, ""));
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(context);
AST_APP_ARG(exten);
AST_APP_ARG(interval);
);
int ast_do_pickup(struct ast_channel *chan, struct ast_channel *target)
{
struct ast_party_connected_line connected_caller;
struct ast_datastore *ds_pickup;
const char *chan_name;/*!< A masquerade changes channel names. */
const char *target_name;/*!< A masquerade changes channel names. */
int res = -1;
RAII_VAR(struct ast_channel_snapshot *, chan_snapshot, NULL, ao2_cleanup);
RAII_VAR(struct ast_channel_snapshot *, target_snapshot, NULL, ao2_cleanup);
target_name = ast_strdupa(ast_channel_name(target));
ast_debug(1, "Call pickup on '%s' by '%s'\n", target_name, ast_channel_name(chan));
/* Mark the target to block any call pickup race. */
ds_pickup = ast_datastore_alloc(&pickup_active, NULL);
if (!ds_pickup) {
ast_log(LOG_WARNING,
"Unable to create channel datastore on '%s' for call pickup\n", target_name);
return -1;
}
ast_channel_datastore_add(target, ds_pickup);
ast_party_connected_line_init(&connected_caller);
ast_party_connected_line_copy(&connected_caller, ast_channel_connected(target));
ast_channel_unlock(target);/* The pickup race is avoided so we do not need the lock anymore. */
/* Reset any earlier private connected id representation */
ast_party_id_reset(&connected_caller.priv);
connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
if (ast_channel_connected_line_sub(NULL, chan, &connected_caller, 0) &&
ast_channel_connected_line_macro(NULL, chan, &connected_caller, 0, 0)) {
ast_channel_update_connected_line(chan, &connected_caller, NULL);
}
ast_party_connected_line_free(&connected_caller);
ast_channel_lock(chan);
chan_name = ast_strdupa(ast_channel_name(chan));
ast_connected_line_copy_from_caller(&connected_caller, ast_channel_caller(chan));
ast_channel_unlock(chan);
connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
if (ast_answer(chan)) {
ast_log(LOG_WARNING, "Unable to answer '%s'\n", chan_name);
goto pickup_failed;
}
if (ast_queue_control(chan, AST_CONTROL_ANSWER)) {
ast_log(LOG_WARNING, "Unable to queue answer on '%s'\n", chan_name);
goto pickup_failed;
}
ast_channel_queue_connected_line_update(chan, &connected_caller, NULL);
/* setting the HANGUPCAUSE so the ringing channel knows this call was not a missed call */
ast_channel_hangupcause_set(chan, AST_CAUSE_ANSWERED_ELSEWHERE);
ast_channel_lock(chan);
chan_snapshot = ast_channel_snapshot_create(chan);
ast_channel_unlock(chan);
if (!chan_snapshot) {
goto pickup_failed;
}
target_snapshot = ast_channel_snapshot_get_latest(ast_channel_uniqueid(target));
if (!target_snapshot) {
goto pickup_failed;
}
if (ast_channel_move(target, chan)) {
ast_log(LOG_WARNING, "Unable to complete call pickup of '%s' with '%s'\n",
chan_name, target_name);
goto pickup_failed;
}
/* target points to the channel that did the pickup at this point, so use that channel's topic instead of chan */
send_call_pickup_stasis_message(target, chan_snapshot, target_snapshot);
res = 0;
pickup_failed:
ast_channel_lock(target);
if (!ast_channel_datastore_remove(target, ds_pickup)) {
ast_datastore_free(ds_pickup);
}
ast_party_connected_line_free(&connected_caller);
return res;
}
static int speex_write(struct ast_channel *chan, const char *cmd, char *data, const char *value)
{
struct ast_datastore *datastore = NULL;
struct speex_info *si = NULL;
struct speex_direction_info **sdi = NULL;
int is_new = 0;
ast_channel_lock(chan);
if (!(datastore = ast_channel_datastore_find(chan, &speex_datastore, NULL))) {
ast_channel_unlock(chan);
if (!(datastore = ast_datastore_alloc(&speex_datastore, NULL))) {
return 0;
}
if (!(si = ast_calloc(1, sizeof(*si)))) {
ast_datastore_free(datastore);
return 0;
}
ast_audiohook_init(&si->audiohook, AST_AUDIOHOOK_TYPE_MANIPULATE, "speex", AST_AUDIOHOOK_MANIPULATE_ALL_RATES);
si->audiohook.manipulate_callback = speex_callback;
si->lastrate = 8000;
is_new = 1;
} else {
ast_channel_unlock(chan);
si = datastore->data;
}
if (!strcasecmp(data, "rx")) {
sdi = &si->rx;
} else if (!strcasecmp(data, "tx")) {
sdi = &si->tx;
} else {
ast_log(LOG_ERROR, "Invalid argument provided to the %s function\n", cmd);
if (is_new) {
ast_datastore_free(datastore);
return -1;
}
}
if (!*sdi) {
if (!(*sdi = ast_calloc(1, sizeof(**sdi)))) {
return 0;
}
/* Right now, the audiohooks API will _only_ provide us 8 kHz slinear
* audio. When it supports 16 kHz (or any other sample rates, we will
* have to take that into account here. */
(*sdi)->samples = -1;
}
if (!strcasecmp(cmd, "agc")) {
if (!sscanf(value, "%30f", &(*sdi)->agclevel))
(*sdi)->agclevel = ast_true(value) ? DEFAULT_AGC_LEVEL : 0.0;
if ((*sdi)->agclevel > 32768.0) {
ast_log(LOG_WARNING, "AGC(%s)=%.01f is greater than 32768... setting to 32768 instead\n",
((*sdi == si->rx) ? "rx" : "tx"), (*sdi)->agclevel);
(*sdi)->agclevel = 32768.0;
}
(*sdi)->agc = !!((*sdi)->agclevel);
if ((*sdi)->state) {
speex_preprocess_ctl((*sdi)->state, SPEEX_PREPROCESS_SET_AGC, &(*sdi)->agc);
if ((*sdi)->agc) {
speex_preprocess_ctl((*sdi)->state, SPEEX_PREPROCESS_SET_AGC_LEVEL, &(*sdi)->agclevel);
}
}
} else if (!strcasecmp(cmd, "denoise")) {
(*sdi)->denoise = (ast_true(value) != 0);
if ((*sdi)->state) {
speex_preprocess_ctl((*sdi)->state, SPEEX_PREPROCESS_SET_DENOISE, &(*sdi)->denoise);
}
}
if (!(*sdi)->agc && !(*sdi)->denoise) {
if ((*sdi)->state)
speex_preprocess_state_destroy((*sdi)->state);
ast_free(*sdi);
*sdi = NULL;
}
if (!si->rx && !si->tx) {
if (is_new) {
is_new = 0;
} else {
ast_channel_lock(chan);
ast_channel_datastore_remove(chan, datastore);
ast_channel_unlock(chan);
ast_audiohook_remove(chan, &si->audiohook);
ast_audiohook_detach(&si->audiohook);
}
ast_datastore_free(datastore);
}
if (is_new) {
datastore->data = si;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
ast_audiohook_attach(chan, &si->audiohook);
}
return 0;
}
static int func_channel_write_real(struct ast_channel *chan, const char *function,
char *data, const char *value)
{
int ret = 0;
signed char gainset;
if (!strcasecmp(data, "language"))
locked_string_field_set(chan, language, value);
else if (!strcasecmp(data, "parkinglot"))
locked_string_field_set(chan, parkinglot, value);
else if (!strcasecmp(data, "musicclass"))
locked_string_field_set(chan, musicclass, value);
else if (!strcasecmp(data, "accountcode"))
locked_string_field_set(chan, accountcode, value);
else if (!strcasecmp(data, "userfield"))
locked_string_field_set(chan, userfield, value);
else if (!strcasecmp(data, "amaflags")) {
ast_channel_lock(chan);
if(isdigit(*value)) {
sscanf(value, "%30d", &chan->amaflags);
} else if (!strcasecmp(value,"OMIT")) {
chan->amaflags = 1;
} else if (!strcasecmp(value,"BILLING")) {
chan->amaflags = 2;
} else if (!strcasecmp(value,"DOCUMENTATION")) {
chan->amaflags = 3;
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "peeraccount"))
locked_string_field_set(chan, peeraccount, value);
else if (!strcasecmp(data, "hangupsource"))
/* XXX - should we be forcing this here? */
ast_set_hangupsource(chan, value, 0);
#ifdef CHANNEL_TRACE
else if (!strcasecmp(data, "trace")) {
ast_channel_lock(chan);
if (ast_true(value))
ret = ast_channel_trace_enable(chan);
else if (ast_false(value))
ret = ast_channel_trace_disable(chan);
else {
ret = -1;
ast_log(LOG_WARNING, "Invalid value for CHANNEL(trace).");
}
ast_channel_unlock(chan);
}
#endif
else if (!strcasecmp(data, "tonezone")) {
struct ast_tone_zone *new_zone;
if (!(new_zone = ast_get_indication_zone(value))) {
ast_log(LOG_ERROR, "Unknown country code '%s' for tonezone. Check indications.conf for available country codes.\n", value);
ret = -1;
} else {
ast_channel_lock(chan);
if (chan->zone) {
chan->zone = ast_tone_zone_unref(chan->zone);
}
chan->zone = ast_tone_zone_ref(new_zone);
ast_channel_unlock(chan);
new_zone = ast_tone_zone_unref(new_zone);
}
} else if (!strcasecmp(data, "callgroup")) {
chan->callgroup = ast_get_group(value);
} else if (!strcasecmp(data, "pickupgroup")) {
chan->pickupgroup = ast_get_group(value);
} else if (!strcasecmp(data, "txgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "rxgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_RXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "transfercapability")) {
unsigned short i;
for (i = 0; i < 0x20; i++) {
if (!strcasecmp(transfercapability_table[i], value) && strcmp(value, "UNK")) {
chan->transfercapability = i;
break;
}
}
} else if (!strncasecmp(data, "secure_bridge_", 14)) {
struct ast_datastore *ds;
struct ast_secure_call_store *store;
if (!chan || !value) {
return -1;
}
ast_channel_lock(chan);
if (!(ds = ast_channel_datastore_find(chan, &secure_call_info, NULL))) {
if (!(ds = ast_datastore_alloc(&secure_call_info, NULL))) {
ast_channel_unlock(chan);
return -1;
}
if (!(store = ast_calloc(1, sizeof(*store)))) {
ast_channel_unlock(chan);
ast_free(ds);
return -1;
}
ds->data = store;
ast_channel_datastore_add(chan, ds);
} else {
store = ds->data;
}
ast_channel_unlock(chan);
if (!strcasecmp(data, "secure_bridge_signaling")) {
store->signaling = ast_true(value) ? 1 : 0;
} else if (!strcasecmp(data, "secure_bridge_media")) {
store->media = ast_true(value) ? 1 : 0;
}
} else if (!chan->tech->func_channel_write
|| chan->tech->func_channel_write(chan, function, data, value)) {
ast_log(LOG_WARNING, "Unknown or unavailable item requested: '%s'\n",
data);
ret = -1;
}
return ret;
}
void ast_jb_create_framehook(struct ast_channel *chan, struct ast_jb_conf *jb_conf, int prefer_existing)
{
struct jb_framedata *framedata;
struct ast_datastore *datastore = NULL;
struct ast_framehook_interface interface = {
.version = AST_FRAMEHOOK_INTERFACE_VERSION,
.event_cb = hook_event_cb,
.destroy_cb = hook_destroy_cb,
};
int i = 0;
/* If disabled, strip any existing jitterbuffer and don't replace it. */
if (!strcasecmp(jb_conf->impl, "disabled")) {
int *id;
ast_channel_lock(chan);
if ((datastore = ast_channel_datastore_find(chan, &jb_datastore, NULL))) {
id = datastore->data;
ast_framehook_detach(chan, *id);
ast_channel_datastore_remove(chan, datastore);
ast_datastore_free(datastore);
}
ast_channel_unlock(chan);
return;
}
if (!(framedata = ast_calloc(1, sizeof(*framedata)))) {
return;
}
if (jb_framedata_init(framedata, jb_conf)) {
jb_framedata_destroy(framedata);
return;
}
interface.data = framedata;
ast_channel_lock(chan);
i = ast_framehook_attach(chan, &interface);
if (i >= 0) {
int *id;
if ((datastore = ast_channel_datastore_find(chan, &jb_datastore, NULL))) {
/* There is already a jitterbuffer on the channel. */
if (prefer_existing) {
/* We prefer the existing jitterbuffer, so remove the new one and keep the old one. */
ast_framehook_detach(chan, i);
ast_channel_unlock(chan);
return;
}
/* We prefer the new jitterbuffer, so strip the old one. */
id = datastore->data;
ast_framehook_detach(chan, *id);
ast_channel_datastore_remove(chan, datastore);
ast_datastore_free(datastore);
}
if (!(datastore = ast_datastore_alloc(&jb_datastore, NULL))) {
ast_framehook_detach(chan, i);
ast_channel_unlock(chan);
return;
}
if (!(id = ast_calloc(1, sizeof(int)))) {
ast_datastore_free(datastore);
ast_framehook_detach(chan, i);
ast_channel_unlock(chan);
return;
}
*id = i; /* Store off the id. The channel is still locked so it is safe to access this ptr. */
datastore->data = id;
ast_channel_datastore_add(chan, datastore);
ast_channel_set_fd(chan, AST_JITTERBUFFER_FD, framedata->timer_fd);
} else {
jb_framedata_destroy(framedata);
framedata = NULL;
}
ast_channel_unlock(chan);
}
struct ast_channel *ast_cel_fabricate_channel_from_event(const struct ast_event *event)
{
struct varshead *headp;
struct ast_var_t *newvariable;
const char *mixed_name;
char timebuf[30];
struct ast_channel *tchan;
struct ast_cel_event_record record = {
.version = AST_CEL_EVENT_RECORD_VERSION,
};
struct ast_datastore *datastore;
char *app_data;
/* do not call ast_channel_alloc because this is not really a real channel */
if (!(tchan = ast_dummy_channel_alloc())) {
return NULL;
}
headp = ast_channel_varshead(tchan);
/* first, get the variables from the event */
if (ast_cel_fill_record(event, &record)) {
ast_channel_unref(tchan);
return NULL;
}
/* next, fill the channel with their data */
mixed_name = (record.event_type == AST_CEL_USER_DEFINED)
? record.user_defined_name : record.event_name;
if ((newvariable = ast_var_assign("eventtype", mixed_name))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
if (ast_strlen_zero(cel_dateformat)) {
snprintf(timebuf, sizeof(timebuf), "%ld.%06ld", (long) record.event_time.tv_sec,
(long) record.event_time.tv_usec);
} else {
struct ast_tm tm;
ast_localtime(&record.event_time, &tm, NULL);
ast_strftime(timebuf, sizeof(timebuf), cel_dateformat, &tm);
}
if ((newvariable = ast_var_assign("eventtime", timebuf))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("eventenum", record.event_name))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("userdeftype", record.user_defined_name))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("eventextra", record.extra))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
ast_channel_caller(tchan)->id.name.valid = 1;
ast_channel_caller(tchan)->id.name.str = ast_strdup(record.caller_id_name);
ast_channel_caller(tchan)->id.number.valid = 1;
ast_channel_caller(tchan)->id.number.str = ast_strdup(record.caller_id_num);
ast_channel_caller(tchan)->ani.number.valid = 1;
ast_channel_caller(tchan)->ani.number.str = ast_strdup(record.caller_id_ani);
ast_channel_redirecting(tchan)->from.number.valid = 1;
ast_channel_redirecting(tchan)->from.number.str = ast_strdup(record.caller_id_rdnis);
ast_channel_dialed(tchan)->number.str = ast_strdup(record.caller_id_dnid);
ast_channel_exten_set(tchan, record.extension);
ast_channel_context_set(tchan, record.context);
ast_channel_name_set(tchan, record.channel_name);
ast_channel_uniqueid_set(tchan, record.unique_id);
ast_channel_linkedid_set(tchan, record.linked_id);
ast_channel_accountcode_set(tchan, record.account_code);
ast_channel_peeraccount_set(tchan, record.peer_account);
ast_channel_userfield_set(tchan, record.user_field);
if ((newvariable = ast_var_assign("BRIDGEPEER", record.peer))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
ast_channel_amaflags_set(tchan, record.amaflag);
/* We need to store an 'application name' and 'application
* data' on the channel for logging purposes, but the channel
* structure only provides a place to store pointers, and it
* expects these pointers to be pointing to data that does not
* need to be freed. This means that the channel's destructor
* does not attempt to free any storage that these pointers
* point to. However, we can't provide data in that form directly for
* these structure members. In order to ensure that these data
* elements have a lifetime that matches the channel's
* lifetime, we'll put them in a datastore attached to the
* channel, and set's the channel's pointers to point into the
* datastore. The datastore will then be automatically destroyed
* when the channel is destroyed.
*/
if (!(datastore = ast_datastore_alloc(&fabricated_channel_datastore, NULL))) {
ast_channel_unref(tchan);
return NULL;
}
if (!(app_data = ast_malloc(strlen(record.application_name) + strlen(record.application_data) + 2))) {
ast_datastore_free(datastore);
ast_channel_unref(tchan);
return NULL;
}
ast_channel_appl_set(tchan, strcpy(app_data, record.application_name));
ast_channel_data_set(tchan, strcpy(app_data + strlen(record.application_name) + 1,
record.application_data));
datastore->data = app_data;
ast_channel_datastore_add(tchan, datastore);
return tchan;
}
static int func_channel_write_real(struct ast_channel *chan, const char *function,
char *data, const char *value)
{
int ret = 0;
signed char gainset;
if (!strcasecmp(data, "language"))
locked_string_field_set(chan, language, value);
else if (!strcasecmp(data, "parkinglot"))
locked_string_field_set(chan, parkinglot, value);
else if (!strcasecmp(data, "musicclass"))
locked_string_field_set(chan, musicclass, value);
else if (!strcasecmp(data, "accountcode"))
locked_string_field_set(chan, accountcode, value);
else if (!strcasecmp(data, "userfield"))
locked_string_field_set(chan, userfield, value);
else if (!strcasecmp(data, "after_bridge_goto")) {
if (ast_strlen_zero(value)) {
ast_bridge_discard_after_goto(chan);
} else {
ast_bridge_set_after_go_on(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), value);
}
} else if (!strcasecmp(data, "amaflags")) {
ast_channel_lock(chan);
if (isdigit(*value)) {
int amaflags;
sscanf(value, "%30d", &amaflags);
ast_channel_amaflags_set(chan, amaflags);
} else if (!strcasecmp(value,"OMIT")){
ast_channel_amaflags_set(chan, 1);
} else if (!strcasecmp(value,"BILLING")){
ast_channel_amaflags_set(chan, 2);
} else if (!strcasecmp(value,"DOCUMENTATION")){
ast_channel_amaflags_set(chan, 3);
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "peeraccount"))
locked_string_field_set(chan, peeraccount, value);
else if (!strcasecmp(data, "hangupsource"))
/* XXX - should we be forcing this here? */
ast_set_hangupsource(chan, value, 0);
#ifdef CHANNEL_TRACE
else if (!strcasecmp(data, "trace")) {
ast_channel_lock(chan);
if (ast_true(value))
ret = ast_channel_trace_enable(chan);
else if (ast_false(value))
ret = ast_channel_trace_disable(chan);
else {
ret = -1;
ast_log(LOG_WARNING, "Invalid value for CHANNEL(trace).\n");
}
ast_channel_unlock(chan);
}
#endif
else if (!strcasecmp(data, "tonezone")) {
struct ast_tone_zone *new_zone;
if (!(new_zone = ast_get_indication_zone(value))) {
ast_log(LOG_ERROR, "Unknown country code '%s' for tonezone. Check indications.conf for available country codes.\n", value);
ret = -1;
} else {
ast_channel_lock(chan);
if (ast_channel_zone(chan)) {
ast_channel_zone_set(chan, ast_tone_zone_unref(ast_channel_zone(chan)));
}
ast_channel_zone_set(chan, ast_tone_zone_ref(new_zone));
ast_channel_unlock(chan);
new_zone = ast_tone_zone_unref(new_zone);
}
} else if (!strcasecmp(data, "dtmf_features")) {
ret = ast_bridge_features_ds_set_string(chan, value);
} else if (!strcasecmp(data, "callgroup")) {
ast_channel_lock(chan);
ast_channel_callgroup_set(chan, ast_get_group(value));
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "pickupgroup")) {
ast_channel_lock(chan);
ast_channel_pickupgroup_set(chan, ast_get_group(value));
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "namedcallgroup")) {
struct ast_namedgroups *groups = ast_get_namedgroups(value);
ast_channel_lock(chan);
ast_channel_named_callgroups_set(chan, groups);
ast_channel_unlock(chan);
ast_unref_namedgroups(groups);
} else if (!strcasecmp(data, "namedpickupgroup")) {
struct ast_namedgroups *groups = ast_get_namedgroups(value);
ast_channel_lock(chan);
ast_channel_named_pickupgroups_set(chan, groups);
ast_channel_unlock(chan);
ast_unref_namedgroups(groups);
} else if (!strcasecmp(data, "txgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "rxgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_RXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "transfercapability")) {
unsigned short i;
ast_channel_lock(chan);
for (i = 0; i < 0x20; i++) {
if (!strcasecmp(transfercapability_table[i], value) && strcmp(value, "UNK")) {
ast_channel_transfercapability_set(chan, i);
break;
}
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "hangup_handler_pop")) {
/* Pop one hangup handler before pushing the new handler. */
ast_pbx_hangup_handler_pop(chan);
ast_pbx_hangup_handler_push(chan, value);
} else if (!strcasecmp(data, "hangup_handler_push")) {
ast_pbx_hangup_handler_push(chan, value);
} else if (!strcasecmp(data, "hangup_handler_wipe")) {
/* Pop all hangup handlers before pushing the new handler. */
while (ast_pbx_hangup_handler_pop(chan)) {
}
ast_pbx_hangup_handler_push(chan, value);
} else if (!strncasecmp(data, "secure_bridge_", 14)) {
struct ast_datastore *ds;
struct ast_secure_call_store *store;
if (!chan || !value) {
return -1;
}
ast_channel_lock(chan);
if (!(ds = ast_channel_datastore_find(chan, &secure_call_info, NULL))) {
if (!(ds = ast_datastore_alloc(&secure_call_info, NULL))) {
ast_channel_unlock(chan);
return -1;
}
if (!(store = ast_calloc(1, sizeof(*store)))) {
ast_channel_unlock(chan);
ast_free(ds);
return -1;
}
ds->data = store;
ast_channel_datastore_add(chan, ds);
} else {
store = ds->data;
}
if (!strcasecmp(data, "secure_bridge_signaling")) {
store->signaling = ast_true(value) ? 1 : 0;
} else if (!strcasecmp(data, "secure_bridge_media")) {
store->media = ast_true(value) ? 1 : 0;
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "max_forwards")) {
int max_forwards;
if (sscanf(value, "%d", &max_forwards) != 1) {
ast_log(LOG_WARNING, "Unable to set max forwards to '%s'\n", value);
ret = -1;
} else {
ast_channel_lock(chan);
ret = ast_max_forwards_set(chan, max_forwards);
ast_channel_unlock(chan);
}
} else if (!ast_channel_tech(chan)->func_channel_write
|| ast_channel_tech(chan)->func_channel_write(chan, function, data, value)) {
ast_log(LOG_WARNING, "Unknown or unavailable item requested: '%s'\n",
data);
ret = -1;
}
return ret;
}
/*!
* \brief Get the lua_State for this channel
*
* If no channel is passed then a new state is allocated. States with no
* channel assocatied with them should only be used for matching extensions.
* If the channel does not yet have a lua state associated with it, one will be
* created.
*
* \note If no channel was passed then the caller is expected to free the state
* using lua_close().
*
* \return a lua_State
*/
static lua_State *lua_get_state(struct ast_channel *chan)
{
struct ast_datastore *datastore = NULL;
lua_State *L;
if (!chan) {
L = luaL_newstate();
if (!L) {
ast_log(LOG_ERROR, "Error allocating lua_State, no memory\n");
return NULL;
}
if (lua_load_extensions(L, NULL)) {
const char *error = lua_tostring(L, -1);
ast_log(LOG_ERROR, "Error loading extensions.lua: %s\n", error);
lua_close(L);
return NULL;
}
return L;
} else {
ast_channel_lock(chan);
datastore = ast_channel_datastore_find(chan, &lua_datastore, NULL);
ast_channel_unlock(chan);
if (!datastore) {
/* nothing found, allocate a new lua state */
datastore = ast_datastore_alloc(&lua_datastore, NULL);
if (!datastore) {
ast_log(LOG_ERROR, "Error allocation channel datastore for lua_State\n");
return NULL;
}
datastore->data = luaL_newstate();
if (!datastore->data) {
ast_datastore_free(datastore);
ast_log(LOG_ERROR, "Error allocating lua_State, no memory\n");
return NULL;
}
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
L = datastore->data;
if (lua_load_extensions(L, chan)) {
const char *error = lua_tostring(L, -1);
ast_log(LOG_ERROR, "Error loading extensions.lua for %s: %s\n", ast_channel_name(chan), error);
ast_channel_lock(chan);
ast_channel_datastore_remove(chan, datastore);
ast_channel_unlock(chan);
ast_datastore_free(datastore);
return NULL;
}
}
return datastore->data;
}
}
static int _macro_exec(struct ast_channel *chan, const char *data, int exclusive)
{
const char *s;
char *tmp;
char *cur, *rest;
char *macro;
char fullmacro[80];
char varname[80];
char runningapp[80], runningdata[1024];
char *oldargs[MAX_ARGS + 1] = { NULL, };
int argc, x;
int res=0;
char oldexten[256]="";
int oldpriority, gosub_level = 0;
char pc[80], depthc[12];
char oldcontext[AST_MAX_CONTEXT] = "";
const char *inhangupc;
int offset, depth = 0, maxdepth = 7;
int setmacrocontext=0;
int autoloopflag, inhangup = 0;
struct ast_str *tmp_subst = NULL;
char *save_macro_exten;
char *save_macro_context;
char *save_macro_priority;
char *save_macro_offset;
struct ast_datastore *macro_store = ast_channel_datastore_find(chan, ¯o_ds_info, NULL);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "Macro() requires arguments. See \"core show application macro\" for help.\n");
return -1;
}
do {
if (macro_store) {
break;
}
if (!(macro_store = ast_datastore_alloc(¯o_ds_info, NULL))) {
ast_log(LOG_WARNING, "Unable to allocate new datastore.\n");
break;
}
/* Just the existence of this datastore is enough. */
macro_store->inheritance = DATASTORE_INHERIT_FOREVER;
ast_channel_datastore_add(chan, macro_store);
} while (0);
/* does the user want a deeper rabbit hole? */
ast_channel_lock(chan);
if ((s = pbx_builtin_getvar_helper(chan, "MACRO_RECURSION"))) {
sscanf(s, "%30d", &maxdepth);
}
/* Count how many levels deep the rabbit hole goes */
if ((s = pbx_builtin_getvar_helper(chan, "MACRO_DEPTH"))) {
sscanf(s, "%30d", &depth);
}
/* Used for detecting whether to return when a Macro is called from another Macro after hangup */
if (strcmp(ast_channel_exten(chan), "h") == 0)
pbx_builtin_setvar_helper(chan, "MACRO_IN_HANGUP", "1");
if ((inhangupc = pbx_builtin_getvar_helper(chan, "MACRO_IN_HANGUP"))) {
sscanf(inhangupc, "%30d", &inhangup);
}
ast_channel_unlock(chan);
if (depth >= maxdepth) {
ast_log(LOG_ERROR, "Macro(): possible infinite loop detected. Returning early.\n");
return 0;
}
snprintf(depthc, sizeof(depthc), "%d", depth + 1);
tmp = ast_strdupa(data);
rest = tmp;
macro = strsep(&rest, ",");
if (ast_strlen_zero(macro)) {
ast_log(LOG_WARNING, "Invalid macro name specified\n");
return 0;
}
snprintf(fullmacro, sizeof(fullmacro), "macro-%s", macro);
if (!ast_exists_extension(chan, fullmacro, "s", 1,
S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
if (!ast_context_find(fullmacro))
ast_log(LOG_WARNING, "No such context '%s' for macro '%s'. Was called by %s@%s\n", fullmacro, macro, ast_channel_exten(chan), ast_channel_context(chan));
else
ast_log(LOG_WARNING, "Context '%s' for macro '%s' lacks 's' extension, priority 1\n", fullmacro, macro);
return 0;
}
/* If we are to run the macro exclusively, take the mutex */
if (exclusive) {
ast_debug(1, "Locking macrolock for '%s'\n", fullmacro);
ast_autoservice_start(chan);
if (ast_context_lockmacro(fullmacro)) {
ast_log(LOG_WARNING, "Failed to lock macro '%s' as in-use\n", fullmacro);
ast_autoservice_stop(chan);
return 0;
}
ast_autoservice_stop(chan);
}
if (!(tmp_subst = ast_str_create(16))) {
return -1;
}
/* Save old info */
oldpriority = ast_channel_priority(chan);
ast_copy_string(oldexten, ast_channel_exten(chan), sizeof(oldexten));
ast_copy_string(oldcontext, ast_channel_context(chan), sizeof(oldcontext));
if (ast_strlen_zero(ast_channel_macrocontext(chan))) {
ast_channel_macrocontext_set(chan, ast_channel_context(chan));
ast_channel_macroexten_set(chan, ast_channel_exten(chan));
ast_channel_macropriority_set(chan, ast_channel_priority(chan));
setmacrocontext=1;
}
argc = 1;
/* Save old macro variables */
save_macro_exten = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_EXTEN"));
pbx_builtin_setvar_helper(chan, "MACRO_EXTEN", oldexten);
save_macro_context = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_CONTEXT"));
pbx_builtin_setvar_helper(chan, "MACRO_CONTEXT", oldcontext);
save_macro_priority = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_PRIORITY"));
snprintf(pc, sizeof(pc), "%d", oldpriority);
pbx_builtin_setvar_helper(chan, "MACRO_PRIORITY", pc);
save_macro_offset = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_OFFSET"));
pbx_builtin_setvar_helper(chan, "MACRO_OFFSET", NULL);
pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc);
/* Setup environment for new run */
ast_channel_exten_set(chan, "s");
ast_channel_context_set(chan, fullmacro);
ast_channel_priority_set(chan, 1);
ast_channel_lock(chan);
while((cur = strsep(&rest, ",")) && (argc < MAX_ARGS)) {
const char *argp;
/* Save copy of old arguments if we're overwriting some, otherwise
let them pass through to the other macro */
snprintf(varname, sizeof(varname), "ARG%d", argc);
if ((argp = pbx_builtin_getvar_helper(chan, varname))) {
oldargs[argc] = ast_strdup(argp);
}
pbx_builtin_setvar_helper(chan, varname, cur);
argc++;
}
ast_channel_unlock(chan);
autoloopflag = ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
ast_set_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
while (ast_exists_extension(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan),
S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
struct ast_context *c;
struct ast_exten *e;
int foundx;
runningapp[0] = '\0';
runningdata[0] = '\0';
/* What application will execute? */
if (ast_rdlock_contexts()) {
ast_log(LOG_WARNING, "Failed to lock contexts list\n");
} else {
for (c = ast_walk_contexts(NULL), e = NULL; c; c = ast_walk_contexts(c)) {
if (!strcmp(ast_get_context_name(c), ast_channel_context(chan))) {
if (ast_rdlock_context(c)) {
ast_log(LOG_WARNING, "Unable to lock context?\n");
} else {
e = find_matching_priority(c, ast_channel_exten(chan), ast_channel_priority(chan),
S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
if (e) { /* This will only be undefined for pbx_realtime, which is majorly broken. */
ast_copy_string(runningapp, ast_get_extension_app(e), sizeof(runningapp));
ast_copy_string(runningdata, ast_get_extension_app_data(e), sizeof(runningdata));
}
ast_unlock_context(c);
}
break;
}
}
}
ast_unlock_contexts();
/* Reset the macro depth, if it was changed in the last iteration */
pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc);
res = ast_spawn_extension(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan),
S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL),
&foundx, 1);
if (res) {
/* Something bad happened, or a hangup has been requested. */
if (((res >= '0') && (res <= '9')) || ((res >= 'A') && (res <= 'F')) ||
(res == '*') || (res == '#')) {
/* Just return result as to the previous application as if it had been dialed */
ast_debug(1, "Oooh, got something to jump out with ('%c')!\n", res);
break;
}
switch(res) {
case MACRO_EXIT_RESULT:
res = 0;
goto out;
default:
ast_debug(2, "Spawn extension (%s,%s,%d) exited non-zero on '%s' in macro '%s'\n", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), ast_channel_name(chan), macro);
ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s' in macro '%s'\n", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), ast_channel_name(chan), macro);
goto out;
}
}
ast_debug(1, "Executed application: %s\n", runningapp);
if (!strcasecmp(runningapp, "GOSUB")) {
gosub_level++;
ast_debug(1, "Incrementing gosub_level\n");
} else if (!strcasecmp(runningapp, "GOSUBIF")) {
char *cond, *app_arg;
char *app2;
ast_str_substitute_variables(&tmp_subst, 0, chan, runningdata);
app2 = ast_str_buffer(tmp_subst);
cond = strsep(&app2, "?");
app_arg = strsep(&app2, ":");
if (pbx_checkcondition(cond)) {
if (!ast_strlen_zero(app_arg)) {
gosub_level++;
ast_debug(1, "Incrementing gosub_level\n");
}
} else {
if (!ast_strlen_zero(app2)) {
gosub_level++;
ast_debug(1, "Incrementing gosub_level\n");
}
}
} else if (!strcasecmp(runningapp, "RETURN")) {
gosub_level--;
ast_debug(1, "Decrementing gosub_level\n");
} else if (!strcasecmp(runningapp, "STACKPOP")) {
gosub_level--;
ast_debug(1, "Decrementing gosub_level\n");
} else if (!strncasecmp(runningapp, "EXEC", 4)) {
/* Must evaluate args to find actual app */
char *tmp2, *tmp3 = NULL;
ast_str_substitute_variables(&tmp_subst, 0, chan, runningdata);
tmp2 = ast_str_buffer(tmp_subst);
if (!strcasecmp(runningapp, "EXECIF")) {
if ((tmp3 = strchr(tmp2, '|'))) {
*tmp3++ = '\0';
}
if (!pbx_checkcondition(tmp2)) {
tmp3 = NULL;
}
} else {
tmp3 = tmp2;
}
if (tmp3) {
ast_debug(1, "Last app: %s\n", tmp3);
}
if (tmp3 && !strncasecmp(tmp3, "GOSUB", 5)) {
gosub_level++;
ast_debug(1, "Incrementing gosub_level\n");
} else if (tmp3 && !strncasecmp(tmp3, "RETURN", 6)) {
gosub_level--;
ast_debug(1, "Decrementing gosub_level\n");
} else if (tmp3 && !strncasecmp(tmp3, "STACKPOP", 8)) {
gosub_level--;
ast_debug(1, "Decrementing gosub_level\n");
}
}
if (gosub_level == 0 && strcasecmp(ast_channel_context(chan), fullmacro)) {
ast_verb(2, "Channel '%s' jumping out of macro '%s'\n", ast_channel_name(chan), macro);
break;
}
/* don't stop executing extensions when we're in "h" */
if (ast_check_hangup(chan) && !inhangup) {
ast_debug(1, "Extension %s, macroexten %s, priority %d returned normally even though call was hung up\n", ast_channel_exten(chan), ast_channel_macroexten(chan), ast_channel_priority(chan));
goto out;
}
ast_channel_priority_set(chan, ast_channel_priority(chan) + 1);
}
out:
/* Don't let the channel change now. */
ast_channel_lock(chan);
/* Reset the depth back to what it was when the routine was entered (like if we called Macro recursively) */
snprintf(depthc, sizeof(depthc), "%d", depth);
pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc);
ast_set2_flag(ast_channel_flags(chan), autoloopflag, AST_FLAG_IN_AUTOLOOP);
for (x = 1; x < argc; x++) {
/* Restore old arguments and delete ours */
snprintf(varname, sizeof(varname), "ARG%d", x);
if (oldargs[x]) {
pbx_builtin_setvar_helper(chan, varname, oldargs[x]);
ast_free(oldargs[x]);
} else {
pbx_builtin_setvar_helper(chan, varname, NULL);
}
}
/* Restore macro variables */
pbx_builtin_setvar_helper(chan, "MACRO_EXTEN", save_macro_exten);
pbx_builtin_setvar_helper(chan, "MACRO_CONTEXT", save_macro_context);
pbx_builtin_setvar_helper(chan, "MACRO_PRIORITY", save_macro_priority);
if (save_macro_exten)
ast_free(save_macro_exten);
if (save_macro_context)
ast_free(save_macro_context);
if (save_macro_priority)
ast_free(save_macro_priority);
if (setmacrocontext) {
ast_channel_macrocontext_set(chan, "");
ast_channel_macroexten_set(chan, "");
ast_channel_macropriority_set(chan, 0);
}
if (!strcasecmp(ast_channel_context(chan), fullmacro)) {
const char *offsets;
/* If we're leaving the macro normally, restore original information */
ast_channel_priority_set(chan, oldpriority);
ast_channel_context_set(chan, oldcontext);
ast_channel_exten_set(chan, oldexten);
if ((offsets = pbx_builtin_getvar_helper(chan, "MACRO_OFFSET"))) {
/* Handle macro offset if it's set by checking the availability of step n + offset + 1, otherwise continue
normally if there is any problem */
if (sscanf(offsets, "%30d", &offset) == 1) {
if (ast_exists_extension(chan, ast_channel_context(chan), ast_channel_exten(chan),
ast_channel_priority(chan) + offset + 1,
S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
ast_channel_priority_set(chan, ast_channel_priority(chan) + offset);
}
}
}
}
pbx_builtin_setvar_helper(chan, "MACRO_OFFSET", save_macro_offset);
if (save_macro_offset)
ast_free(save_macro_offset);
/* Unlock the macro */
if (exclusive) {
ast_debug(1, "Unlocking macrolock for '%s'\n", fullmacro);
if (ast_context_unlockmacro(fullmacro)) {
ast_log(LOG_ERROR, "Failed to unlock macro '%s' - that isn't good\n", fullmacro);
res = 0;
}
}
ast_channel_unlock(chan);
ast_free(tmp_subst);
return res;
}
