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freeswitch/libs/freetdm/src/ftdm_io.c

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/*
* Copyright (c) 2007, Anthony Minessale II
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of the original author; nor the names of any contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Contributors:
*
* Moises Silva <moy@sangoma.com>
* David Yat Sin <dyatsin@sangoma.com>
*
*/
#define _GNU_SOURCE
#ifndef WIN32
#endif
#include "freetdm.h"
#include <stdarg.h>
#ifdef WIN32
#include <io.h>
#endif
#ifdef FTDM_PIKA_SUPPORT
#include "ftdm_pika.h"
#endif
static int time_is_init = 0;
static void time_init(void)
{
#ifdef WIN32
timeBeginPeriod(1);
#endif
time_is_init = 1;
}
static void time_end(void)
{
#ifdef WIN32
timeEndPeriod(1);
#endif
time_is_init = 0;
}
FT_DECLARE(ftdm_time_t) ftdm_current_time_in_ms(void)
{
#ifdef WIN32
return timeGetTime();
#else
struct timeval tv;
gettimeofday(&tv, NULL);
return ((tv.tv_sec * 1000) + (tv.tv_usec / 1000));
#endif
}
static struct {
ftdm_hash_t *interface_hash;
ftdm_hash_t *module_hash;
ftdm_hash_t *span_hash;
ftdm_hash_t *group_hash;
ftdm_mutex_t *mutex;
ftdm_mutex_t *span_mutex;
ftdm_mutex_t *group_mutex;
uint32_t span_index;
uint32_t group_index;
uint32_t running;
ftdm_span_t *spans;
ftdm_group_t *groups;
} globals;
/* enum lookup funcs */
FTDM_ENUM_NAMES(TONEMAP_NAMES, TONEMAP_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_tonemap, ftdm_tonemap2str, ftdm_tonemap_t, TONEMAP_NAMES, FTDM_TONEMAP_INVALID)
FTDM_ENUM_NAMES(OOB_NAMES, OOB_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_oob_event, ftdm_oob_event2str, ftdm_oob_event_t, OOB_NAMES, FTDM_OOB_INVALID)
FTDM_ENUM_NAMES(TRUNK_TYPE_NAMES, TRUNK_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_trunk_type, ftdm_trunk_type2str, ftdm_trunk_type_t, TRUNK_TYPE_NAMES, FTDM_TRUNK_NONE)
FTDM_ENUM_NAMES(START_TYPE_NAMES, START_TYPE_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_analog_start_type, ftdm_analog_start_type2str, ftdm_analog_start_type_t, START_TYPE_NAMES, FTDM_ANALOG_START_NA)
FTDM_ENUM_NAMES(SIGNAL_NAMES, SIGNAL_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_signal_event, ftdm_signal_event2str, ftdm_signal_event_t, SIGNAL_NAMES, FTDM_SIGEVENT_INVALID)
FTDM_ENUM_NAMES(CHANNEL_STATE_NAMES, CHANNEL_STATE_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_channel_state, ftdm_channel_state2str, ftdm_channel_state_t, CHANNEL_STATE_NAMES, FTDM_CHANNEL_STATE_INVALID)
FTDM_ENUM_NAMES(MDMF_TYPE_NAMES, MDMF_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_mdmf_type, ftdm_mdmf_type2str, ftdm_mdmf_type_t, MDMF_TYPE_NAMES, MDMF_INVALID)
FTDM_ENUM_NAMES(CHAN_TYPE_NAMES, CHAN_TYPE_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_chan_type, ftdm_chan_type2str, ftdm_chan_type_t, CHAN_TYPE_NAMES, FTDM_CHAN_TYPE_COUNT)
FTDM_ENUM_NAMES(SIGNALING_STATUS_NAMES, SIGSTATUS_STRINGS)
FTDM_STR2ENUM(ftdm_str2ftdm_signaling_status, ftdm_signaling_status2str, ftdm_signaling_status_t, SIGNALING_STATUS_NAMES, FTDM_SIG_STATE_INVALID)
static const char *cut_path(const char *in)
{
const char *p, *ret = in;
char delims[] = "/\\";
char *i;
for (i = delims; *i; i++) {
p = in;
while ((p = strchr(p, *i)) != 0) {
ret = ++p;
}
}
return ret;
}
static void null_logger(const char *file, const char *func, int line, int level, const char *fmt, ...)
{
if (file && func && line && level && fmt) {
return;
}
return;
}
static const char *LEVEL_NAMES[] = {
"EMERG",
"ALERT",
"CRIT",
"ERROR",
"WARNING",
"NOTICE",
"INFO",
"DEBUG",
NULL
};
static int ftdm_log_level = 7;
static void default_logger(const char *file, const char *func, int line, int level, const char *fmt, ...)
{
const char *fp;
char data[1024];
va_list ap;
if (level < 0 || level > 7) {
level = 7;
}
if (level > ftdm_log_level) {
return;
}
fp = cut_path(file);
va_start(ap, fmt);
vsnprintf(data, sizeof(data), fmt, ap);
fprintf(stderr, "[%s] %s:%d %s() %s", LEVEL_NAMES[level], file, line, func, data);
va_end(ap);
}
static __inline__ void *ftdm_std_malloc(void *pool, ftdm_size_t size)
{
void *ptr = malloc(size);
pool = NULL; /* fix warning */
ftdm_assert_return(ptr != NULL, NULL, "Out of memory");
return ptr;
}
static __inline__ void *ftdm_std_calloc(void *pool, ftdm_size_t elements, ftdm_size_t size)
{
void *ptr = calloc(elements, size);
pool = NULL;
ftdm_assert_return(ptr != NULL, NULL, "Out of memory");
return ptr;
}
static __inline__ void ftdm_std_free(void *pool, void *ptr)
{
pool = NULL;
ftdm_assert_return(ptr != NULL, , "Attempted to free null pointer");
free(ptr);
}
FT_DECLARE_DATA ftdm_memory_handler_t g_ftdm_mem_handler =
{
/*.pool =*/ NULL,
/*.malloc =*/ ftdm_std_malloc,
/*.calloc =*/ ftdm_std_calloc,
/*.free =*/ ftdm_std_free
};
FT_DECLARE_DATA ftdm_crash_policy_t g_ftdm_crash_policy = FTDM_CRASH_NEVER;
FT_DECLARE_DATA ftdm_logger_t ftdm_log = null_logger;
FT_DECLARE(void) ftdm_global_set_crash_policy(ftdm_crash_policy_t policy)
{
g_ftdm_crash_policy |= policy;
}
FT_DECLARE(ftdm_status_t) ftdm_global_set_memory_handler(ftdm_memory_handler_t *handler)
{
if (!handler) {
return FTDM_FAIL;
}
if (!handler->malloc) {
return FTDM_FAIL;
}
if (!handler->calloc) {
return FTDM_FAIL;
}
if (!handler->free) {
return FTDM_FAIL;
}
memcpy(&g_ftdm_mem_handler, handler, sizeof(*handler));
return FTDM_SUCCESS;
}
FT_DECLARE(void) ftdm_global_set_logger(ftdm_logger_t logger)
{
if (logger) {
ftdm_log = logger;
} else {
ftdm_log = null_logger;
}
}
FT_DECLARE(void) ftdm_global_set_default_logger(int level)
{
if (level < 0 || level > 7) {
level = 7;
}
ftdm_log = default_logger;
ftdm_log_level = level;
}
FT_DECLARE_NONSTD(int) ftdm_hash_equalkeys(void *k1, void *k2)
{
return strcmp((char *) k1, (char *) k2) ? 0 : 1;
}
FT_DECLARE_NONSTD(uint32_t) ftdm_hash_hashfromstring(void *ky)
{
unsigned char *str = (unsigned char *) ky;
uint32_t hash = 0;
int c;
while ((c = *str++)) {
hash = c + (hash << 6) + (hash << 16) - hash;
}
return hash;
}
static ftdm_status_t ftdm_channel_destroy(ftdm_channel_t *ftdmchan)
{
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_CONFIGURED)) {
while (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_INTHREAD)) {
ftdm_log(FTDM_LOG_INFO, "Waiting for thread to exit on channel %u:%u\n", ftdmchan->span_id, ftdmchan->chan_id);
ftdm_sleep(500);
}
ftdm_mutex_lock(ftdmchan->pre_buffer_mutex);
ftdm_buffer_destroy(&ftdmchan->pre_buffer);
ftdm_mutex_unlock(ftdmchan->pre_buffer_mutex);
ftdm_buffer_destroy(&ftdmchan->digit_buffer);
ftdm_buffer_destroy(&ftdmchan->gen_dtmf_buffer);
ftdm_buffer_destroy(&ftdmchan->dtmf_buffer);
ftdm_buffer_destroy(&ftdmchan->fsk_buffer);
ftdmchan->pre_buffer_size = 0;
hashtable_destroy(ftdmchan->variable_hash);
ftdm_safe_free(ftdmchan->dtmf_hangup_buf);
if (ftdmchan->tone_session.buffer) {
teletone_destroy_session(&ftdmchan->tone_session);
memset(&ftdmchan->tone_session, 0, sizeof(ftdmchan->tone_session));
}
if (ftdmchan->span->zio->channel_destroy) {
ftdm_log(FTDM_LOG_INFO, "Closing channel %s:%u:%u fd:%d\n", ftdmchan->span->type, ftdmchan->span_id, ftdmchan->chan_id, ftdmchan->sockfd);
if (ftdmchan->span->zio->channel_destroy(ftdmchan) == FTDM_SUCCESS) {
ftdm_clear_flag_locked(ftdmchan, FTDM_CHANNEL_CONFIGURED);
} else {
ftdm_log(FTDM_LOG_ERROR, "Error Closing channel %u:%u fd:%d\n", ftdmchan->span_id, ftdmchan->chan_id, ftdmchan->sockfd);
}
}
ftdm_mutex_destroy(&ftdmchan->mutex);
ftdm_mutex_destroy(&ftdmchan->pre_buffer_mutex);
}
return FTDM_SUCCESS;
}
static ftdm_status_t ftdm_span_destroy(ftdm_span_t *span)
{
ftdm_status_t status = FTDM_SUCCESS;
unsigned j;
ftdm_mutex_lock(span->mutex);
/* stop the signaling */
if (span->stop) {
status = span->stop(span);
}
/* destroy the channels */
ftdm_clear_flag(span, FTDM_SPAN_CONFIGURED);
for(j = 1; j <= span->chan_count && span->channels[j]; j++) {
ftdm_channel_t *cur_chan = span->channels[j];
if (cur_chan) {
if (ftdm_test_flag(cur_chan, FTDM_CHANNEL_CONFIGURED)) {
ftdm_channel_destroy(cur_chan);
}
ftdm_safe_free(cur_chan);
cur_chan = NULL;
}
}
/* destroy the I/O for the span */
if (span->zio && span->zio->span_destroy) {
ftdm_log(FTDM_LOG_INFO, "Destroying span %u type (%s)\n", span->span_id, span->type);
if (span->zio->span_destroy(span) != FTDM_SUCCESS) {
status = FTDM_FAIL;
}
ftdm_safe_free(span->type);
ftdm_safe_free(span->dtmf_hangup);
}
/* destroy final basic resources of the span data structure */
ftdm_mutex_unlock(span->mutex);
ftdm_mutex_destroy(&span->mutex);
ftdm_safe_free(span->signal_data);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_get_alarms(ftdm_channel_t *ftdmchan)
{
ftdm_status_t status = FTDM_FAIL;
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_CONFIGURED)) {
if (ftdmchan->span->zio->get_alarms) {
if ((status = ftdmchan->span->zio->get_alarms(ftdmchan)) == FTDM_SUCCESS) {
*ftdmchan->last_error = '\0';
if (ftdm_test_alarm_flag(ftdmchan, FTDM_ALARM_RED)) {
snprintf(ftdmchan->last_error + strlen(ftdmchan->last_error), sizeof(ftdmchan->last_error) - strlen(ftdmchan->last_error), "RED/");
}
if (ftdm_test_alarm_flag(ftdmchan, FTDM_ALARM_YELLOW)) {
snprintf(ftdmchan->last_error + strlen(ftdmchan->last_error), sizeof(ftdmchan->last_error) - strlen(ftdmchan->last_error), "YELLOW/");
}
if (ftdm_test_alarm_flag(ftdmchan, FTDM_ALARM_BLUE)) {
snprintf(ftdmchan->last_error + strlen(ftdmchan->last_error), sizeof(ftdmchan->last_error) - strlen(ftdmchan->last_error), "BLUE/");
}
if (ftdm_test_alarm_flag(ftdmchan, FTDM_ALARM_LOOPBACK)) {
snprintf(ftdmchan->last_error + strlen(ftdmchan->last_error), sizeof(ftdmchan->last_error) - strlen(ftdmchan->last_error), "LOOP/");
}
if (ftdm_test_alarm_flag(ftdmchan, FTDM_ALARM_RECOVER)) {
snprintf(ftdmchan->last_error + strlen(ftdmchan->last_error), sizeof(ftdmchan->last_error) - strlen(ftdmchan->last_error), "RECOVER/");
}
*(ftdmchan->last_error + strlen(ftdmchan->last_error) - 1) = '\0';
}
} else {
status = FTDM_NOTIMPL;
}
}
return status;
}
static void ftdm_span_add(ftdm_span_t *span)
{
ftdm_span_t *sp;
ftdm_mutex_lock(globals.span_mutex);
for (sp = globals.spans; sp && sp->next; sp = sp->next);
if (sp) {
sp->next = span;
} else {
globals.spans = span;
}
hashtable_insert(globals.span_hash, (void *)span->name, span, HASHTABLE_FLAG_NONE);
ftdm_mutex_unlock(globals.span_mutex);
}
#if 0
static void ftdm_span_del(ftdm_span_t *span)
{
ftdm_span_t *last = NULL, *sp;
ftdm_mutex_lock(globals.span_mutex);
for (sp = globals.spans; sp; sp = sp->next) {
if (sp == span) {
if (last) {
last->next = sp->next;
} else {
globals.spans = sp->next;
}
hashtable_remove(globals.span_hash, (void *)sp->name);
break;
}
last = sp;
}
ftdm_mutex_unlock(globals.span_mutex);
}
#endif
FT_DECLARE(ftdm_status_t) ftdm_span_stop(ftdm_span_t *span)
{
if (span->stop) {
span->stop(span);
return FTDM_SUCCESS;
}
return FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_span_create(ftdm_io_interface_t *zio, ftdm_span_t **span, const char *name)
{
ftdm_span_t *new_span = NULL;
ftdm_status_t status = FTDM_FAIL;
assert(zio != NULL);
ftdm_mutex_lock(globals.mutex);
if (globals.span_index < FTDM_MAX_SPANS_INTERFACE) {
new_span = ftdm_malloc(sizeof(*new_span));
assert(new_span);
memset(new_span, 0, sizeof(*new_span));
status = ftdm_mutex_create(&new_span->mutex);
assert(status == FTDM_SUCCESS);
ftdm_set_flag(new_span, FTDM_SPAN_CONFIGURED);
new_span->span_id = ++globals.span_index;
new_span->zio = zio;
ftdm_copy_string(new_span->tone_map[FTDM_TONEMAP_DIAL], "%(1000,0,350,440)", FTDM_TONEMAP_LEN);
ftdm_copy_string(new_span->tone_map[FTDM_TONEMAP_RING], "%(2000,4000,440,480)", FTDM_TONEMAP_LEN);
ftdm_copy_string(new_span->tone_map[FTDM_TONEMAP_BUSY], "%(500,500,480,620)", FTDM_TONEMAP_LEN);
ftdm_copy_string(new_span->tone_map[FTDM_TONEMAP_ATTN], "%(100,100,1400,2060,2450,2600)", FTDM_TONEMAP_LEN);
new_span->trunk_type = FTDM_TRUNK_NONE;
new_span->data_type = FTDM_TYPE_SPAN;
ftdm_mutex_lock(globals.span_mutex);
if (!ftdm_strlen_zero(name) && hashtable_search(globals.span_hash, (void *)name)) {
ftdm_log(FTDM_LOG_WARNING, "name %s is already used, substituting 'span%d' as the name\n", name, new_span->span_id);
name = NULL;
}
ftdm_mutex_unlock(globals.span_mutex);
if (!name) {
char buf[128] = "";
snprintf(buf, sizeof(buf), "span%d", new_span->span_id);
name = buf;
}
new_span->name = ftdm_strdup(name);
ftdm_span_add(new_span);
*span = new_span;
status = FTDM_SUCCESS;
}
ftdm_mutex_unlock(globals.mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_span_close_all(void)
{
ftdm_span_t *span;
uint32_t i = 0, j;
ftdm_mutex_lock(globals.span_mutex);
for (span = globals.spans; span; span = span->next) {
if (ftdm_test_flag(span, FTDM_SPAN_CONFIGURED)) {
for(j = 1; j <= span->chan_count && span->channels[j]; j++) {
ftdm_channel_t *toclose = span->channels[j];
if (ftdm_test_flag(toclose, FTDM_CHANNEL_INUSE)) {
ftdm_channel_close(&toclose);
}
i++;
}
}
}
ftdm_mutex_unlock(globals.span_mutex);
return i ? FTDM_SUCCESS : FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_span_load_tones(ftdm_span_t *span, const char *mapname)
{
ftdm_config_t cfg;
char *var, *val;
int x = 0;
if (!ftdm_config_open_file(&cfg, "tones.conf")) {
snprintf(span->last_error, sizeof(span->last_error), "error loading tones.");
return FTDM_FAIL;
}
while (ftdm_config_next_pair(&cfg, &var, &val)) {
int detect = 0;
if (!strcasecmp(cfg.category, mapname) && var && val) {
uint32_t index;
char *name = NULL;
if (!strncasecmp(var, "detect-", 7)) {
name = var + 7;
detect = 1;
} else if (!strncasecmp(var, "generate-", 9)) {
name = var + 9;
} else {
ftdm_log(FTDM_LOG_WARNING, "Unknown tone name %s\n", var);
continue;
}
index = ftdm_str2ftdm_tonemap(name);
if (index >= FTDM_TONEMAP_INVALID || index == FTDM_TONEMAP_NONE) {
ftdm_log(FTDM_LOG_WARNING, "Unknown tone name %s\n", name);
} else {
if (detect) {
char *p = val, *next;
int i = 0;
do {
teletone_process_t this;
next = strchr(p, ',');
this = (teletone_process_t)atof(p);
span->tone_detect_map[index].freqs[i++] = this;
if (next) {
p = next + 1;
}
} while (next);
ftdm_log(FTDM_LOG_DEBUG, "added tone detect [%s] = [%s]\n", name, val);
} else {
ftdm_log(FTDM_LOG_DEBUG, "added tone generation [%s] = [%s]\n", name, val);
ftdm_copy_string(span->tone_map[index], val, sizeof(span->tone_map[index]));
}
x++;
}
}
}
ftdm_config_close_file(&cfg);
if (!x) {
snprintf(span->last_error, sizeof(span->last_error), "error loading tones.");
return FTDM_FAIL;
}
return FTDM_SUCCESS;
}
#define FTDM_SLINEAR_MAX_VALUE 32767
#define FTDM_SLINEAR_MIN_VALUE -32767
static void reset_gain_table(unsigned char *gain_table, float new_gain, ftdm_codec_t codec_gain)
{
/* sample value */
unsigned sv = 0;
/* linear gain factor */
float lingain = 0;
/* linear value for each table sample */
float linvalue = 0;
/* amplified (or attenuated in case of negative amplification) sample value */
int ampvalue = 0;
/* gain tables are only for alaw and ulaw */
if (codec_gain != FTDM_CODEC_ALAW && codec_gain != FTDM_CODEC_ULAW) {
ftdm_log(FTDM_LOG_WARNING, "Not resetting gain table because codec is not ALAW or ULAW but %d\n", codec_gain);
return;
}
if (!new_gain) {
/* for a 0.0db gain table, each alaw/ulaw sample value is left untouched (0 ==0, 1 == 1, 2 == 2 etc)*/
for (sv = 0; sv < FTDM_GAINS_TABLE_SIZE; sv++) {
gain_table[sv] = sv;
}
return;
}
/* use the 20log rule to increase the gain: http://en.wikipedia.org/wiki/Gain, http:/en.wipedia.org/wiki/20_log_rule#Definitions */
lingain = pow(10.0, new_gain/ 20.0);
for (sv = 0; sv < FTDM_GAINS_TABLE_SIZE; sv++) {
/* get the linear value for this alaw/ulaw sample value */
linvalue = codec_gain == FTDM_CODEC_ALAW ? alaw_to_linear(sv) : ulaw_to_linear(sv);
/* multiply the linear value and the previously calculated linear gain */
ampvalue = (int)(linvalue * lingain);
/* chop it if goes beyond the limits */
if (ampvalue > FTDM_SLINEAR_MAX_VALUE) {
ampvalue = FTDM_SLINEAR_MAX_VALUE;
}
if (ampvalue < FTDM_SLINEAR_MIN_VALUE) {
ampvalue = FTDM_SLINEAR_MIN_VALUE;
}
gain_table[sv] = codec_gain == FTDM_CODEC_ALAW ? linear_to_alaw(ampvalue) : linear_to_ulaw(ampvalue);
}
}
FT_DECLARE(ftdm_status_t) ftdm_span_add_channel(ftdm_span_t *span, ftdm_socket_t sockfd, ftdm_chan_type_t type, ftdm_channel_t **chan)
{
unsigned i = 0;
if (span->chan_count < FTDM_MAX_CHANNELS_SPAN) {
ftdm_channel_t *new_chan = span->channels[++span->chan_count];
if (!new_chan) {
if (!(new_chan = ftdm_calloc(1, sizeof(*new_chan)))) {
return FTDM_FAIL;
}
span->channels[span->chan_count] = new_chan;
}
new_chan->type = type;
new_chan->sockfd = sockfd;
new_chan->zio = span->zio;
new_chan->span_id = span->span_id;
new_chan->chan_id = span->chan_count;
new_chan->span = span;
new_chan->fds[0] = -1;
new_chan->fds[1] = -1;
new_chan->data_type = FTDM_TYPE_CHANNEL;
if (!new_chan->dtmf_on) {
new_chan->dtmf_on = FTDM_DEFAULT_DTMF_ON;
}
if (!new_chan->dtmf_off) {
new_chan->dtmf_off = FTDM_DEFAULT_DTMF_OFF;
}
ftdm_mutex_create(&new_chan->mutex);
ftdm_mutex_create(&new_chan->pre_buffer_mutex);
ftdm_buffer_create(&new_chan->digit_buffer, 128, 128, 0);
ftdm_buffer_create(&new_chan->gen_dtmf_buffer, 128, 128, 0);
new_chan->variable_hash = create_hashtable(16, ftdm_hash_hashfromstring, ftdm_hash_equalkeys);
new_chan->dtmf_hangup_buf = ftdm_calloc (span->dtmf_hangup_len + 1, sizeof (char));
/* set 0.0db gain table */
for (i = 0; i < sizeof(new_chan->txgain_table); i++) {
new_chan->txgain_table[i] = i;
new_chan->rxgain_table[i] = i;
}
ftdm_set_flag(new_chan, FTDM_CHANNEL_CONFIGURED | FTDM_CHANNEL_READY);
*chan = new_chan;
return FTDM_SUCCESS;
}
return FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_span_find_by_name(const char *name, ftdm_span_t **span)
{
ftdm_status_t status = FTDM_FAIL;
ftdm_mutex_lock(globals.span_mutex);
if (!ftdm_strlen_zero(name)) {
if ((*span = hashtable_search(globals.span_hash, (void *)name))) {
status = FTDM_SUCCESS;
} else {
int span_id = atoi(name);
ftdm_span_find(span_id, span);
if (*span) {
status = FTDM_SUCCESS;
}
}
}
ftdm_mutex_unlock(globals.span_mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_span_find(uint32_t id, ftdm_span_t **span)
{
ftdm_span_t *fspan = NULL, *sp;
if (id > FTDM_MAX_SPANS_INTERFACE) {
return FTDM_FAIL;
}
ftdm_mutex_lock(globals.span_mutex);
for (sp = globals.spans; sp; sp = sp->next) {
if (sp->span_id == id) {
fspan = sp;
break;
}
}
ftdm_mutex_unlock(globals.span_mutex);
if (!fspan || !ftdm_test_flag(fspan, FTDM_SPAN_CONFIGURED)) {
return FTDM_FAIL;
}
*span = fspan;
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_span_set_event_callback(ftdm_span_t *span, zio_event_cb_t event_callback)
{
ftdm_mutex_lock(span->mutex);
span->event_callback = event_callback;
ftdm_mutex_unlock(span->mutex);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_span_poll_event(ftdm_span_t *span, uint32_t ms)
{
assert(span->zio != NULL);
if (span->zio->poll_event) {
return span->zio->poll_event(span, ms);
} else {
ftdm_log(FTDM_LOG_ERROR, "poll_event method not implemented in module %s!", span->zio->name);
}
return FTDM_NOTIMPL;
}
FT_DECLARE(ftdm_status_t) ftdm_span_next_event(ftdm_span_t *span, ftdm_event_t **event)
{
assert(span->zio != NULL);
if (span->zio->next_event) {
return span->zio->next_event(span, event);
} else {
ftdm_log(FTDM_LOG_ERROR, "next_event method not implemented in module %s!", span->zio->name);
}
return FTDM_NOTIMPL;
}
static ftdm_status_t ftdmchan_fsk_write_sample(int16_t *buf, ftdm_size_t buflen, void *user_data)
{
ftdm_channel_t *ftdmchan = (ftdm_channel_t *) user_data;
ftdm_buffer_write(ftdmchan->fsk_buffer, buf, buflen * 2);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_send_fsk_data(ftdm_channel_t *ftdmchan, ftdm_fsk_data_state_t *fsk_data, float db_level)
{
struct ftdm_fsk_modulator fsk_trans;
if (!ftdmchan->fsk_buffer) {
ftdm_buffer_create(&ftdmchan->fsk_buffer, 128, 128, 0);
} else {
ftdm_buffer_zero(ftdmchan->fsk_buffer);
}
if (ftdmchan->token_count > 1) {
ftdm_fsk_modulator_init(&fsk_trans, FSK_BELL202, ftdmchan->rate, fsk_data, db_level, 80, 5, 0, ftdmchan_fsk_write_sample, ftdmchan);
ftdm_fsk_modulator_send_all((&fsk_trans));
} else {
ftdm_fsk_modulator_init(&fsk_trans, FSK_BELL202, ftdmchan->rate, fsk_data, db_level, 180, 5, 300, ftdmchan_fsk_write_sample, ftdmchan);
ftdm_fsk_modulator_send_all((&fsk_trans));
ftdmchan->buffer_delay = 3500 / ftdmchan->effective_interval;
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_set_event_callback(ftdm_channel_t *ftdmchan, zio_event_cb_t event_callback)
{
ftdm_mutex_lock(ftdmchan->mutex);
ftdmchan->event_callback = event_callback;
ftdm_mutex_unlock(ftdmchan->mutex);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_clear_token(ftdm_channel_t *ftdmchan, const char *token)
{
ftdm_status_t status = FTDM_FAIL;
ftdm_mutex_lock(ftdmchan->mutex);
if (token == NULL) {
memset(ftdmchan->tokens, 0, sizeof(ftdmchan->tokens));
ftdmchan->token_count = 0;
} else if (*token != '\0') {
char tokens[FTDM_MAX_TOKENS][FTDM_TOKEN_STRLEN];
int32_t i, count = ftdmchan->token_count;
memcpy(tokens, ftdmchan->tokens, sizeof(tokens));
memset(ftdmchan->tokens, 0, sizeof(ftdmchan->tokens));
ftdmchan->token_count = 0;
for (i = 0; i < count; i++) {
if (strcmp(tokens[i], token)) {
ftdm_copy_string(ftdmchan->tokens[ftdmchan->token_count], tokens[i], sizeof(ftdmchan->tokens[ftdmchan->token_count]));
ftdmchan->token_count++;
}
}
status = FTDM_SUCCESS;
}
ftdm_mutex_unlock(ftdmchan->mutex);
return status;
}
FT_DECLARE(void) ftdm_channel_rotate_tokens(ftdm_channel_t *ftdmchan)
{
if (ftdmchan->token_count) {
memmove(ftdmchan->tokens[1], ftdmchan->tokens[0], ftdmchan->token_count * FTDM_TOKEN_STRLEN);
ftdm_copy_string(ftdmchan->tokens[0], ftdmchan->tokens[ftdmchan->token_count], FTDM_TOKEN_STRLEN);
*ftdmchan->tokens[ftdmchan->token_count] = '\0';
}
}
FT_DECLARE(void) ftdm_channel_replace_token(ftdm_channel_t *ftdmchan, const char *old_token, const char *new_token)
{
unsigned int i;
if (ftdmchan->token_count) {
for(i = 0; i < ftdmchan->token_count; i++) {
if (!strcmp(ftdmchan->tokens[i], old_token)) {
ftdm_copy_string(ftdmchan->tokens[i], new_token, FTDM_TOKEN_STRLEN);
break;
}
}
}
}
FT_DECLARE(ftdm_status_t) ftdm_channel_add_token(ftdm_channel_t *ftdmchan, char *token, int end)
{
ftdm_status_t status = FTDM_FAIL;
ftdm_mutex_lock(ftdmchan->mutex);
if (ftdmchan->token_count < FTDM_MAX_TOKENS) {
if (end) {
ftdm_copy_string(ftdmchan->tokens[ftdmchan->token_count++], token, FTDM_TOKEN_STRLEN);
} else {
memmove(ftdmchan->tokens[1], ftdmchan->tokens[0], ftdmchan->token_count * FTDM_TOKEN_STRLEN);
ftdm_copy_string(ftdmchan->tokens[0], token, FTDM_TOKEN_STRLEN);
ftdmchan->token_count++;
}
status = FTDM_SUCCESS;
}
ftdm_mutex_unlock(ftdmchan->mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_complete_state(ftdm_channel_t *ftdmchan)
{
ftdm_channel_state_t state = ftdmchan->state;
if (state == FTDM_CHANNEL_STATE_PROGRESS) {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_PROGRESS);
} else if (state == FTDM_CHANNEL_STATE_UP) {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_PROGRESS);
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_MEDIA);
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_ANSWERED);
} else if (state == FTDM_CHANNEL_STATE_PROGRESS_MEDIA) {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_PROGRESS);
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_MEDIA);
}
return FTDM_SUCCESS;
}
static int ftdm_parse_state_map(ftdm_channel_t *ftdmchan, ftdm_channel_state_t state, ftdm_state_map_t *state_map)
{
int x = 0, ok = 0;
ftdm_state_direction_t direction = ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND) ? ZSD_OUTBOUND : ZSD_INBOUND;
for(x = 0; x < FTDM_MAP_NODE_SIZE; x++) {
int i = 0, proceed = 0;
if (!state_map->nodes[x].type) {
break;
}
if (state_map->nodes[x].direction != direction) {
continue;
}
if (state_map->nodes[x].check_states[0] == FTDM_ANY_STATE) {
proceed = 1;
} else {
for(i = 0; i < FTDM_MAP_MAX; i++) {
if (state_map->nodes[x].check_states[i] == ftdmchan->state) {
proceed = 1;
break;
}
}
}
if (!proceed) {
continue;
}
for(i = 0; i < FTDM_MAP_MAX; i++) {
ok = (state_map->nodes[x].type == ZSM_ACCEPTABLE);
if (state_map->nodes[x].states[i] == FTDM_END) {
break;
}
if (state_map->nodes[x].states[i] == state) {
ok = !ok;
goto end;
}
}
}
end:
return ok;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_set_state(ftdm_channel_t *ftdmchan, ftdm_channel_state_t state, int lock)
{
int ok = 1;
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_READY)) {
return FTDM_FAIL;
}
if (ftdm_test_flag(ftdmchan->span, FTDM_SPAN_SUSPENDED)) {
if (state != FTDM_CHANNEL_STATE_RESTART && state != FTDM_CHANNEL_STATE_DOWN) {
return FTDM_FAIL;
}
}
if (lock) {
ftdm_mutex_lock(ftdmchan->mutex);
}
if (ftdmchan->span->state_map) {
ok = ftdm_parse_state_map(ftdmchan, state, ftdmchan->span->state_map);
goto end;
}
switch(ftdmchan->state) {
case FTDM_CHANNEL_STATE_HANGUP:
case FTDM_CHANNEL_STATE_TERMINATING:
{
ok = 0;
switch(state) {
case FTDM_CHANNEL_STATE_DOWN:
case FTDM_CHANNEL_STATE_BUSY:
case FTDM_CHANNEL_STATE_RESTART:
ok = 1;
break;
default:
break;
}
}
break;
case FTDM_CHANNEL_STATE_UP:
{
ok = 1;
switch(state) {
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
case FTDM_CHANNEL_STATE_RING:
ok = 0;
break;
default:
break;
}
}
break;
case FTDM_CHANNEL_STATE_DOWN:
{
ok = 0;
switch(state) {
case FTDM_CHANNEL_STATE_DIALTONE:
case FTDM_CHANNEL_STATE_COLLECT:
case FTDM_CHANNEL_STATE_DIALING:
case FTDM_CHANNEL_STATE_RING:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_GET_CALLERID:
case FTDM_CHANNEL_STATE_GENRING:
ok = 1;
break;
default:
break;
}
}
break;
case FTDM_CHANNEL_STATE_BUSY:
{
switch(state) {
case FTDM_CHANNEL_STATE_UP:
ok = 0;
break;
default:
break;
}
}
break;
case FTDM_CHANNEL_STATE_RING:
{
switch(state) {
case FTDM_CHANNEL_STATE_UP:
ok = 1;
break;
default:
break;
}
}
break;
default:
break;
}
end:
if (state == ftdmchan->state) {
ok = 0;
}
if (ok) {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_STATE_CHANGE);
ftdm_set_flag_locked(ftdmchan->span, FTDM_SPAN_STATE_CHANGE);
ftdmchan->last_state = ftdmchan->state;
ftdmchan->state = state;
}
if (lock) {
ftdm_mutex_unlock(ftdmchan->mutex);
}
return ok ? FTDM_SUCCESS : FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_group_channel_use_count(ftdm_group_t *group, uint32_t *count)
{
uint32_t j;
*count = 0;
if (!group) {
return FTDM_FAIL;
}
for(j = 0; j < group->chan_count && group->channels[j]; j++) {
if (group->channels[j]) {
if (ftdm_test_flag(group->channels[j], FTDM_CHANNEL_INUSE)) {
(*count)++;
}
}
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_group(uint32_t group_id, ftdm_direction_t direction, ftdm_caller_data_t *caller_data, ftdm_channel_t **ftdmchan)
{
ftdm_status_t status = FTDM_FAIL;
ftdm_channel_t *check;
uint32_t i, count;
ftdm_group_t *group = NULL;
if (group_id) {
ftdm_group_find(group_id, &group);
}
if (!group ) {
ftdm_log(FTDM_LOG_CRIT, "GROUP NOT DEFINED!\n");
*ftdmchan = NULL;
return FTDM_FAIL;
}
ftdm_group_channel_use_count(group, &count);
if (count >= group->chan_count) {
ftdm_log(FTDM_LOG_CRIT, "All circuits are busy.\n");
*ftdmchan = NULL;
return FTDM_FAIL;
}
if (direction == FTDM_TOP_DOWN) {
i = 0;
} else {
i = group->chan_count-1;
}
ftdm_mutex_lock(group->mutex);
for (;;) {
if (direction == FTDM_TOP_DOWN) {
if (i >= group->chan_count) {
break;
}
} else {
if (i < 0) {
break;
}
}
if (!(check = group->channels[i])) {
status = FTDM_FAIL;
break;
}
if (ftdm_test_flag(check, FTDM_CHANNEL_READY) &&
!ftdm_test_flag(check, FTDM_CHANNEL_INUSE) &&
!ftdm_test_flag(check, FTDM_CHANNEL_SUSPENDED) &&
check->state == FTDM_CHANNEL_STATE_DOWN &&
check->type != FTDM_CHAN_TYPE_DQ921 &&
check->type != FTDM_CHAN_TYPE_DQ931
) {
ftdm_span_t* span = NULL;
ftdm_span_find(check->span_id, &span);
if (span && span->channel_request) {
status = span->channel_request(span, check->chan_id, direction, caller_data, ftdmchan);
break;
}
status = check->zio->open(check);
if (status == FTDM_SUCCESS) {
ftdm_set_flag(check, FTDM_CHANNEL_INUSE);
ftdm_channel_open_chan(check);
*ftdmchan = check;
break;
}
}
if (direction == FTDM_TOP_DOWN) {
i++;
} else {
i--;
}
}
ftdm_mutex_unlock(group->mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_span_channel_use_count(ftdm_span_t *span, uint32_t *count)
{
uint32_t j;
*count = 0;
if (!span || !ftdm_test_flag(span, FTDM_SPAN_CONFIGURED)) {
return FTDM_FAIL;
}
for(j = 1; j <= span->chan_count && span->channels[j]; j++) {
if (span->channels[j]) {
if (ftdm_test_flag(span->channels[j], FTDM_CHANNEL_INUSE)) {
(*count)++;
}
}
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_open_by_span(uint32_t span_id, ftdm_direction_t direction, ftdm_caller_data_t *caller_data, ftdm_channel_t **ftdmchan)
{
ftdm_status_t status = FTDM_FAIL;
ftdm_channel_t *check;
uint32_t i, j, count;
ftdm_span_t *span = NULL;
uint32_t span_max;
if (span_id) {
ftdm_span_find(span_id, &span);
if (!span || !ftdm_test_flag(span, FTDM_SPAN_CONFIGURED)) {
ftdm_log(FTDM_LOG_CRIT, "SPAN NOT DEFINED!\n");
*ftdmchan = NULL;
return FTDM_FAIL;
}
ftdm_span_channel_use_count(span, &count);
if (count >= span->chan_count) {
ftdm_log(FTDM_LOG_CRIT, "All circuits are busy.\n");
*ftdmchan = NULL;
return FTDM_FAIL;
}
if (span->channel_request && !span->suggest_chan_id) {
return span->channel_request(span, 0, direction, caller_data, ftdmchan);
}
span_max = span_id;
j = span_id;
} else {
ftdm_log(FTDM_LOG_CRIT, "No span supplied\n");
*ftdmchan = NULL;
return FTDM_FAIL;
}
ftdm_mutex_lock(span->mutex);
if (direction == FTDM_TOP_DOWN) {
i = 1;
} else {
i = span->chan_count;
}
for(;;) {
if (direction == FTDM_TOP_DOWN) {
if (i > span->chan_count) {
break;
}
} else {
if (i == 0) {
break;
}
}
if (!(check = span->channels[i])) {
status = FTDM_FAIL;
break;
}
if (ftdm_test_flag(check, FTDM_CHANNEL_READY) &&
!ftdm_test_flag(check, FTDM_CHANNEL_INUSE) &&
!ftdm_test_flag(check, FTDM_CHANNEL_SUSPENDED) &&
check->state == FTDM_CHANNEL_STATE_DOWN &&
check->type != FTDM_CHAN_TYPE_DQ921 &&
check->type != FTDM_CHAN_TYPE_DQ931
) {
if (span && span->channel_request) {
status = span->channel_request(span, i, direction, caller_data, ftdmchan);
break;
}
status = check->zio->open(check);
if (status == FTDM_SUCCESS) {
ftdm_set_flag(check, FTDM_CHANNEL_INUSE);
ftdm_channel_open_chan(check);
*ftdmchan = check;
break;
}
}
if (direction == FTDM_TOP_DOWN) {
i++;
} else {
i--;
}
}
ftdm_mutex_unlock(span->mutex);
return status;
}
static ftdm_status_t ftdm_channel_reset(ftdm_channel_t *ftdmchan)
{
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_OPEN);
ftdmchan->event_callback = NULL;
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
ftdm_channel_done(ftdmchan);
ftdm_clear_flag_locked(ftdmchan, FTDM_CHANNEL_HOLD);
memset(ftdmchan->tokens, 0, sizeof(ftdmchan->tokens));
ftdmchan->token_count = 0;
if (ftdmchan->dtmf_buffer) {
ftdm_buffer_zero(ftdmchan->dtmf_buffer);
}
if (ftdmchan->gen_dtmf_buffer) {
ftdm_buffer_zero(ftdmchan->gen_dtmf_buffer);
}
if (ftdmchan->digit_buffer) {
ftdm_buffer_zero(ftdmchan->digit_buffer);
}
if (!ftdmchan->dtmf_on) {
ftdmchan->dtmf_on = FTDM_DEFAULT_DTMF_ON;
}
if (!ftdmchan->dtmf_off) {
ftdmchan->dtmf_off = FTDM_DEFAULT_DTMF_OFF;
}
memset(ftdmchan->dtmf_hangup_buf, '\0', ftdmchan->span->dtmf_hangup_len);
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE)) {
ftdmchan->effective_codec = ftdmchan->native_codec;
ftdmchan->packet_len = ftdmchan->native_interval * (ftdmchan->effective_codec == FTDM_CODEC_SLIN ? 16 : 8);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE);
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_init(ftdm_channel_t *ftdmchan)
{
if (ftdmchan->init_state != FTDM_CHANNEL_STATE_DOWN) {
ftdm_set_state_locked(ftdmchan, ftdmchan->init_state);
ftdmchan->init_state = FTDM_CHANNEL_STATE_DOWN;
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_open_chan(ftdm_channel_t *ftdmchan)
{
ftdm_status_t status = FTDM_FAIL;
assert(ftdmchan != NULL);
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_SUSPENDED)) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "%s", "Channel is suspended");
return FTDM_FAIL;
}
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_READY) || (status = ftdm_mutex_trylock(ftdmchan->mutex)) != FTDM_SUCCESS) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "Channel is not ready or is in use %d %d", ftdm_test_flag(ftdmchan, FTDM_CHANNEL_READY), status);
return status;
}
status = FTDM_FAIL;
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_READY)) {
status = ftdmchan->span->zio->open(ftdmchan);
if (status == FTDM_SUCCESS) {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_OPEN | FTDM_CHANNEL_INUSE);
}
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "%s", "Channel is not ready");
}
ftdm_mutex_unlock(ftdmchan->mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_open(uint32_t span_id, uint32_t chan_id, ftdm_channel_t **ftdmchan)
{
ftdm_channel_t *check;
ftdm_status_t status = FTDM_FAIL;
ftdm_span_t *span = NULL;
ftdm_mutex_unlock(globals.mutex);
ftdm_span_find(span_id, &span);
if (!span || !ftdm_test_flag(span, FTDM_SPAN_CONFIGURED) || chan_id >= FTDM_MAX_CHANNELS_SPAN) {
ftdm_log(FTDM_LOG_CRIT, "SPAN NOT DEFINED!\n");
*ftdmchan = NULL;
goto done;
}
if (span->channel_request) {
ftdm_log(FTDM_LOG_ERROR, "Individual channel selection not implemented on this span.\n");
*ftdmchan = NULL;
goto done;
}
if (!(check = span->channels[chan_id])) {
ftdm_log(FTDM_LOG_ERROR, "Invalid Channel %d\n", chan_id);
*ftdmchan = NULL;
goto done;
}
if (ftdm_test_flag(check, FTDM_CHANNEL_SUSPENDED) ||
!ftdm_test_flag(check, FTDM_CHANNEL_READY) || (status = ftdm_mutex_trylock(check->mutex)) != FTDM_SUCCESS) {
*ftdmchan = NULL;
goto done;
}
status = FTDM_FAIL;
if (ftdm_test_flag(check, FTDM_CHANNEL_READY) && (!ftdm_test_flag(check, FTDM_CHANNEL_INUSE) ||
(check->type == FTDM_CHAN_TYPE_FXS && check->token_count == 1))) {
if (!ftdm_test_flag(check, FTDM_CHANNEL_OPEN)) {
status = check->zio->open(check);
if (status == FTDM_SUCCESS) {
ftdm_set_flag(check, FTDM_CHANNEL_OPEN);
}
} else {
status = FTDM_SUCCESS;
}
ftdm_set_flag(check, FTDM_CHANNEL_INUSE);
*ftdmchan = check;
}
ftdm_mutex_unlock(check->mutex);
done:
ftdm_mutex_unlock(globals.mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_outgoing_call(ftdm_channel_t *ftdmchan)
{
ftdm_status_t status;
assert(ftdmchan != NULL);
if (ftdmchan->span->outgoing_call) {
if ((status = ftdmchan->span->outgoing_call(ftdmchan)) == FTDM_SUCCESS) {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND);
}
return status;
} else {
ftdm_log(FTDM_LOG_ERROR, "outgoing_call method not implemented!\n");
}
return FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_set_sig_status(ftdm_channel_t *ftdmchan, ftdm_signaling_status_t sigstatus)
{
ftdm_assert_return(ftdmchan != NULL, FTDM_FAIL, "Null channel\n");
ftdm_assert_return(ftdmchan->span != NULL, FTDM_FAIL, "Null span\n");
if (ftdmchan->span->set_channel_sig_status) {
return ftdmchan->span->set_channel_sig_status(ftdmchan, sigstatus);
} else {
ftdm_log(FTDM_LOG_ERROR, "set_channel_sig_status method not implemented!\n");
return FTDM_FAIL;
}
}
FT_DECLARE(ftdm_status_t) ftdm_channel_get_sig_status(ftdm_channel_t *ftdmchan, ftdm_signaling_status_t *sigstatus)
{
ftdm_assert_return(ftdmchan != NULL, FTDM_FAIL, "Null channel\n");
ftdm_assert_return(ftdmchan->span != NULL, FTDM_FAIL, "Null span\n");
ftdm_assert_return(sigstatus != NULL, FTDM_FAIL, "Null sig status parameter\n");
if (ftdmchan->span->get_channel_sig_status) {
return ftdmchan->span->get_channel_sig_status(ftdmchan, sigstatus);
} else {
ftdm_log(FTDM_LOG_ERROR, "get_channel_sig_status method not implemented!\n");
return FTDM_FAIL;
}
}
FT_DECLARE(ftdm_status_t) ftdm_span_set_sig_status(ftdm_span_t *span, ftdm_signaling_status_t sigstatus)
{
ftdm_assert_return(span != NULL, FTDM_FAIL, "Null span\n");
if (span->set_span_sig_status) {
return span->set_span_sig_status(span, sigstatus);
} else {
ftdm_log(FTDM_LOG_ERROR, "set_span_sig_status method not implemented!\n");
return FTDM_FAIL;
}
}
FT_DECLARE(ftdm_status_t) ftdm_span_get_sig_status(ftdm_span_t *span, ftdm_signaling_status_t *sigstatus)
{
ftdm_assert_return(span != NULL, FTDM_FAIL, "Null span\n");
ftdm_assert_return(sigstatus != NULL, FTDM_FAIL, "Null sig status parameter\n");
if (span->get_span_sig_status) {
return span->get_span_sig_status(span, sigstatus);
} else {
ftdm_log(FTDM_LOG_ERROR, "get_span_sig_status method not implemented!\n");
return FTDM_FAIL;
}
}
FT_DECLARE(ftdm_status_t) ftdm_channel_done(ftdm_channel_t *ftdmchan)
{
assert(ftdmchan != NULL);
ftdm_mutex_lock(ftdmchan->mutex);
memset(&ftdmchan->caller_data, 0, sizeof(ftdmchan->caller_data));
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_INUSE);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_WINK);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_FLASH);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_STATE_CHANGE);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_HOLD);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_OFFHOOK);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_RINGING);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_PROGRESS_DETECT);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_CALLERID_DETECT);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_3WAY);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_PROGRESS);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_MEDIA);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_ANSWERED);
ftdm_mutex_lock(ftdmchan->pre_buffer_mutex);
ftdm_buffer_destroy(&ftdmchan->pre_buffer);
ftdmchan->pre_buffer_size = 0;
ftdm_mutex_unlock(ftdmchan->pre_buffer_mutex);
ftdmchan->init_state = FTDM_CHANNEL_STATE_DOWN;
ftdmchan->state = FTDM_CHANNEL_STATE_DOWN;
ftdm_log(FTDM_LOG_DEBUG, "channel done %u:%u\n", ftdmchan->span_id, ftdmchan->chan_id);
ftdm_mutex_unlock(ftdmchan->mutex);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_use(ftdm_channel_t *ftdmchan)
{
assert(ftdmchan != NULL);
ftdm_set_flag_locked(ftdmchan, FTDM_CHANNEL_INUSE);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_close(ftdm_channel_t **ftdmchan)
{
ftdm_channel_t *check;
ftdm_status_t status = FTDM_FAIL;
assert(ftdmchan != NULL);
check = *ftdmchan;
*ftdmchan = NULL;
if (!check) {
return FTDM_FAIL;
}
if (!ftdm_test_flag(check, FTDM_CHANNEL_INUSE)) {
ftdm_log(FTDM_LOG_WARNING, "Called ftdm_channel_close but never ftdm_channel_open in chan %d:%d??\n", check->span_id, check->chan_id);
return FTDM_FAIL;
}
if (ftdm_test_flag(check, FTDM_CHANNEL_CONFIGURED)) {
ftdm_mutex_lock(check->mutex);
if (ftdm_test_flag(check, FTDM_CHANNEL_OPEN)) {
status = check->zio->close(check);
if (status == FTDM_SUCCESS) {
ftdm_clear_flag(check, FTDM_CHANNEL_INUSE);
ftdm_channel_reset(check);
*ftdmchan = NULL;
}
}
check->ring_count = 0;
ftdm_mutex_unlock(check->mutex);
}
return status;
}
static ftdm_status_t ftdmchan_activate_dtmf_buffer(ftdm_channel_t *ftdmchan)
{
if (!ftdmchan->dtmf_buffer) {
if (ftdm_buffer_create(&ftdmchan->dtmf_buffer, 1024, 3192, 0) != FTDM_SUCCESS) {
ftdm_log(FTDM_LOG_ERROR, "Failed to allocate DTMF Buffer!\n");
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "buffer error");
return FTDM_FAIL;
} else {
ftdm_log(FTDM_LOG_DEBUG, "Created DTMF Buffer!\n");
}
}
if (!ftdmchan->tone_session.buffer) {
memset(&ftdmchan->tone_session, 0, sizeof(ftdmchan->tone_session));
teletone_init_session(&ftdmchan->tone_session, 0, NULL, NULL);
}
ftdmchan->tone_session.rate = ftdmchan->rate;
ftdmchan->tone_session.duration = ftdmchan->dtmf_on * (ftdmchan->tone_session.rate / 1000);
ftdmchan->tone_session.wait = ftdmchan->dtmf_off * (ftdmchan->tone_session.rate / 1000);
ftdmchan->tone_session.volume = -7;
/*
ftdmchan->tone_session.debug = 1;
ftdmchan->tone_session.debug_stream = stdout;
*/
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_command(ftdm_channel_t *ftdmchan, ftdm_command_t command, void *obj)
{
ftdm_status_t status = FTDM_FAIL;
assert(ftdmchan != NULL);
assert(ftdmchan->zio != NULL);
ftdm_mutex_lock(ftdmchan->mutex);
switch(command) {
case FTDM_COMMAND_ENABLE_CALLERID_DETECT:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_CALLERID)) {
if (ftdm_fsk_demod_init(&ftdmchan->fsk, ftdmchan->rate, ftdmchan->fsk_buf, sizeof(ftdmchan->fsk_buf)) != FTDM_SUCCESS) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "%s", strerror(errno));
GOTO_STATUS(done, FTDM_FAIL);
}
ftdm_set_flag_locked(ftdmchan, FTDM_CHANNEL_CALLERID_DETECT);
}
}
break;
case FTDM_COMMAND_DISABLE_CALLERID_DETECT:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_CALLERID)) {
ftdm_fsk_demod_destroy(&ftdmchan->fsk);
ftdm_clear_flag_locked(ftdmchan, FTDM_CHANNEL_CALLERID_DETECT);
}
}
break;
case FTDM_COMMAND_TRACE_INPUT:
{
char *path = (char *) obj;
if (ftdmchan->fds[0] > 0) {
close(ftdmchan->fds[0]);
ftdmchan->fds[0] = -1;
}
if ((ftdmchan->fds[0] = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) > -1) {
ftdm_log(FTDM_LOG_DEBUG, "Tracing channel %u:%u to [%s]\n", ftdmchan->span_id, ftdmchan->chan_id, path);
GOTO_STATUS(done, FTDM_SUCCESS);
}
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "%s", strerror(errno));
GOTO_STATUS(done, FTDM_FAIL);
}
break;
case FTDM_COMMAND_TRACE_OUTPUT:
{
char *path = (char *) obj;
if (ftdmchan->fds[1] > 0) {
close(ftdmchan->fds[1]);
ftdmchan->fds[1] = -1;
}
if ((ftdmchan->fds[1] = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) > -1) {
ftdm_log(FTDM_LOG_DEBUG, "Tracing channel %u:%u to [%s]\n", ftdmchan->span_id, ftdmchan->chan_id, path);
GOTO_STATUS(done, FTDM_SUCCESS);
}
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "%s", strerror(errno));
GOTO_STATUS(done, FTDM_FAIL);
}
break;
case FTDM_COMMAND_SET_INTERVAL:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_INTERVAL)) {
ftdmchan->effective_interval = FTDM_COMMAND_OBJ_INT;
if (ftdmchan->effective_interval == ftdmchan->native_interval) {
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_BUFFER);
} else {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_BUFFER);
}
ftdmchan->packet_len = ftdmchan->native_interval * (ftdmchan->effective_codec == FTDM_CODEC_SLIN ? 16 : 8);
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_GET_INTERVAL:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_INTERVAL)) {
FTDM_COMMAND_OBJ_INT = ftdmchan->effective_interval;
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_SET_CODEC:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_CODECS)) {
ftdmchan->effective_codec = FTDM_COMMAND_OBJ_INT;
if (ftdmchan->effective_codec == ftdmchan->native_codec) {
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE);
} else {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE);
}
ftdmchan->packet_len = ftdmchan->native_interval * (ftdmchan->effective_codec == FTDM_CODEC_SLIN ? 16 : 8);
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_SET_NATIVE_CODEC:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_CODECS)) {
ftdmchan->effective_codec = ftdmchan->native_codec;
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE);
ftdmchan->packet_len = ftdmchan->native_interval * (ftdmchan->effective_codec == FTDM_CODEC_SLIN ? 16 : 8);
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_GET_CODEC:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_CODECS)) {
FTDM_COMMAND_OBJ_INT = ftdmchan->effective_codec;
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_GET_NATIVE_CODEC:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_CODECS)) {
FTDM_COMMAND_OBJ_INT = ftdmchan->native_codec;
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_ENABLE_PROGRESS_DETECT:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_PROGRESS)) {
/* if they don't have thier own, use ours */
ftdm_channel_clear_detected_tones(ftdmchan);
ftdm_channel_clear_needed_tones(ftdmchan);
teletone_multi_tone_init(&ftdmchan->span->tone_finder[FTDM_TONEMAP_DIAL], &ftdmchan->span->tone_detect_map[FTDM_TONEMAP_DIAL]);
teletone_multi_tone_init(&ftdmchan->span->tone_finder[FTDM_TONEMAP_RING], &ftdmchan->span->tone_detect_map[FTDM_TONEMAP_RING]);
teletone_multi_tone_init(&ftdmchan->span->tone_finder[FTDM_TONEMAP_BUSY], &ftdmchan->span->tone_detect_map[FTDM_TONEMAP_BUSY]);
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_PROGRESS_DETECT);
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_DISABLE_PROGRESS_DETECT:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_PROGRESS)) {
ftdm_clear_flag_locked(ftdmchan, FTDM_CHANNEL_PROGRESS_DETECT);
ftdm_channel_clear_detected_tones(ftdmchan);
ftdm_channel_clear_needed_tones(ftdmchan);
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_ENABLE_DTMF_DETECT:
{
/* if they don't have thier own, use ours */
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
ftdm_tone_type_t tt = FTDM_COMMAND_OBJ_INT;
if (tt == FTDM_TONE_DTMF) {
teletone_dtmf_detect_init (&ftdmchan->dtmf_detect, ftdmchan->rate);
ftdm_set_flag_locked(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
ftdm_set_flag_locked(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
GOTO_STATUS(done, FTDM_SUCCESS);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "invalid command");
GOTO_STATUS(done, FTDM_FAIL);
}
}
}
break;
case FTDM_COMMAND_DISABLE_DTMF_DETECT:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
ftdm_tone_type_t tt = FTDM_COMMAND_OBJ_INT;
if (tt == FTDM_TONE_DTMF) {
teletone_dtmf_detect_init (&ftdmchan->dtmf_detect, ftdmchan->rate);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF);
GOTO_STATUS(done, FTDM_SUCCESS);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "invalid command");
GOTO_STATUS(done, FTDM_FAIL);
}
}
}
case FTDM_COMMAND_SET_PRE_BUFFER_SIZE:
{
int val = FTDM_COMMAND_OBJ_INT;
if (val < 0) {
val = 0;
}
ftdmchan->pre_buffer_size = val * 8;
ftdm_mutex_lock(ftdmchan->pre_buffer_mutex);
if (!ftdmchan->pre_buffer_size) {
ftdm_buffer_destroy(&ftdmchan->pre_buffer);
} else if (!ftdmchan->pre_buffer) {
ftdm_buffer_create(&ftdmchan->pre_buffer, 1024, ftdmchan->pre_buffer_size, 0);
}
ftdm_mutex_unlock(ftdmchan->pre_buffer_mutex);
GOTO_STATUS(done, FTDM_SUCCESS);
}
break;
case FTDM_COMMAND_GET_DTMF_ON_PERIOD:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_GENERATE)) {
FTDM_COMMAND_OBJ_INT = ftdmchan->dtmf_on;
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_GET_DTMF_OFF_PERIOD:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_GENERATE)) {
FTDM_COMMAND_OBJ_INT = ftdmchan->dtmf_on;
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_SET_DTMF_ON_PERIOD:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_GENERATE)) {
int val = FTDM_COMMAND_OBJ_INT;
if (val > 10 && val < 1000) {
ftdmchan->dtmf_on = val;
GOTO_STATUS(done, FTDM_SUCCESS);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "invalid value %d range 10-1000", val);
GOTO_STATUS(done, FTDM_FAIL);
}
}
}
break;
case FTDM_COMMAND_SET_DTMF_OFF_PERIOD:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_GENERATE)) {
int val = FTDM_COMMAND_OBJ_INT;
if (val > 10 && val < 1000) {
ftdmchan->dtmf_off = val;
GOTO_STATUS(done, FTDM_SUCCESS);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "invalid value %d range 10-1000", val);
GOTO_STATUS(done, FTDM_FAIL);
}
}
}
break;
case FTDM_COMMAND_SEND_DTMF:
{
if (!ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_GENERATE)) {
char *digits = FTDM_COMMAND_OBJ_CHAR_P;
if ((status = ftdmchan_activate_dtmf_buffer(ftdmchan)) != FTDM_SUCCESS) {
GOTO_STATUS(done, status);
}
ftdm_buffer_write(ftdmchan->gen_dtmf_buffer, digits, strlen(digits));
GOTO_STATUS(done, FTDM_SUCCESS);
}
}
break;
case FTDM_COMMAND_DISABLE_ECHOCANCEL:
{
ftdm_mutex_lock(ftdmchan->pre_buffer_mutex);
ftdm_buffer_destroy(&ftdmchan->pre_buffer);
ftdmchan->pre_buffer_size = 0;
ftdm_mutex_unlock(ftdmchan->pre_buffer_mutex);
}
break;
/* FIXME: validate user gain values */
case FTDM_COMMAND_SET_RX_GAIN:
{
ftdmchan->rxgain = FTDM_COMMAND_OBJ_FLOAT;
reset_gain_table(ftdmchan->rxgain_table, ftdmchan->rxgain, ftdmchan->native_codec);
if (ftdmchan->rxgain == 0.0) {
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_USE_RX_GAIN);
} else {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_USE_RX_GAIN);
}
}
break;
case FTDM_COMMAND_GET_RX_GAIN:
{
FTDM_COMMAND_OBJ_FLOAT = ftdmchan->rxgain;
}
break;
case FTDM_COMMAND_SET_TX_GAIN:
{
ftdmchan->txgain = FTDM_COMMAND_OBJ_FLOAT;
reset_gain_table(ftdmchan->txgain_table, ftdmchan->txgain, ftdmchan->native_codec);
if (ftdmchan->txgain == 0.0) {
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_USE_TX_GAIN);
} else {
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_USE_TX_GAIN);
}
}
break;
case FTDM_COMMAND_GET_TX_GAIN:
{
FTDM_COMMAND_OBJ_FLOAT = ftdmchan->txgain;
}
break;
default:
break;
}
if (!ftdmchan->zio->command) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "method not implemented");
ftdm_log(FTDM_LOG_ERROR, "no command function defined by the I/O freetdm module!\n");
GOTO_STATUS(done, FTDM_FAIL);
}
status = ftdmchan->zio->command(ftdmchan, command, obj);
if (status == FTDM_NOTIMPL) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "I/O command %d not implemented in backend", command);
ftdm_log(FTDM_LOG_ERROR, "I/O backend does not support command %d!\n", command);
}
done:
ftdm_mutex_unlock(ftdmchan->mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_wait(ftdm_channel_t *ftdmchan, ftdm_wait_flag_t *flags, int32_t to)
{
assert(ftdmchan != NULL);
assert(ftdmchan->zio != NULL);
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OPEN)) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "channel not open");
return FTDM_FAIL;
}
if (!ftdmchan->zio->wait) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "method not implemented");
return FTDM_FAIL;
}
return ftdmchan->zio->wait(ftdmchan, flags, to);
}
/*******************************/
ZIO_CODEC_FUNCTION(zio_slin2ulaw)
{
int16_t sln_buf[512] = {0}, *sln = sln_buf;
uint8_t *lp = data;
uint32_t i;
ftdm_size_t len = *datalen;
if (max > len) {
max = len;
}
memcpy(sln, data, max);
for(i = 0; i < max; i++) {
*lp++ = linear_to_ulaw(*sln++);
}
*datalen = max / 2;
return FTDM_SUCCESS;
}
ZIO_CODEC_FUNCTION(zio_ulaw2slin)
{
int16_t *sln = data;
uint8_t law[1024] = {0}, *lp = law;
uint32_t i;
ftdm_size_t len = *datalen;
if (max > len) {
max = len;
}
memcpy(law, data, max);
for(i = 0; i < max; i++) {
*sln++ = ulaw_to_linear(*lp++);
}
*datalen = max * 2;
return FTDM_SUCCESS;
}
ZIO_CODEC_FUNCTION(zio_slin2alaw)
{
int16_t sln_buf[512] = {0}, *sln = sln_buf;
uint8_t *lp = data;
uint32_t i;
ftdm_size_t len = *datalen;
if (max > len) {
max = len;
}
memcpy(sln, data, max);
for(i = 0; i < max; i++) {
*lp++ = linear_to_alaw(*sln++);
}
*datalen = max / 2;
return FTDM_SUCCESS;
}
ZIO_CODEC_FUNCTION(zio_alaw2slin)
{
int16_t *sln = data;
uint8_t law[1024] = {0}, *lp = law;
uint32_t i;
ftdm_size_t len = *datalen;
if (max > len) {
max = len;
}
memcpy(law, data, max);
for(i = 0; i < max; i++) {
*sln++ = alaw_to_linear(*lp++);
}
*datalen = max * 2;
return FTDM_SUCCESS;
}
ZIO_CODEC_FUNCTION(zio_ulaw2alaw)
{
ftdm_size_t len = *datalen;
uint32_t i;
uint8_t *lp = data;
if (max > len) {
max = len;
}
for(i = 0; i < max; i++) {
*lp = ulaw_to_alaw(*lp);
lp++;
}
return FTDM_SUCCESS;
}
ZIO_CODEC_FUNCTION(zio_alaw2ulaw)
{
ftdm_size_t len = *datalen;
uint32_t i;
uint8_t *lp = data;
if (max > len) {
max = len;
}
for(i = 0; i < max; i++) {
*lp = alaw_to_ulaw(*lp);
lp++;
}
return FTDM_SUCCESS;
}
/******************************/
FT_DECLARE(void) ftdm_channel_clear_detected_tones(ftdm_channel_t *ftdmchan)
{
uint32_t i;
memset(ftdmchan->detected_tones, 0, sizeof(ftdmchan->detected_tones[0]) * FTDM_TONEMAP_INVALID);
for (i = 1; i < FTDM_TONEMAP_INVALID; i++) {
ftdmchan->span->tone_finder[i].tone_count = 0;
}
}
FT_DECLARE(void) ftdm_channel_clear_needed_tones(ftdm_channel_t *ftdmchan)
{
memset(ftdmchan->needed_tones, 0, sizeof(ftdmchan->needed_tones[0]) * FTDM_TONEMAP_INVALID);
}
FT_DECLARE(ftdm_size_t) ftdm_channel_dequeue_dtmf(ftdm_channel_t *ftdmchan, char *dtmf, ftdm_size_t len)
{
ftdm_size_t bytes = 0;
assert(ftdmchan != NULL);
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_READY)) {
return FTDM_FAIL;
}
if (ftdmchan->digit_buffer && ftdm_buffer_inuse(ftdmchan->digit_buffer)) {
ftdm_mutex_lock(ftdmchan->mutex);
if ((bytes = ftdm_buffer_read(ftdmchan->digit_buffer, dtmf, len)) > 0) {
*(dtmf + bytes) = '\0';
}
ftdm_mutex_unlock(ftdmchan->mutex);
}
return bytes;
}
FT_DECLARE(void) ftdm_channel_flush_dtmf(ftdm_channel_t *ftdmchan)
{
if (ftdmchan->digit_buffer && ftdm_buffer_inuse(ftdmchan->digit_buffer)) {
ftdm_mutex_lock(ftdmchan->mutex);
ftdm_buffer_zero(ftdmchan->digit_buffer);
ftdm_mutex_unlock(ftdmchan->mutex);
}
}
FT_DECLARE(ftdm_status_t) ftdm_channel_queue_dtmf(ftdm_channel_t *ftdmchan, const char *dtmf)
{
ftdm_status_t status;
register ftdm_size_t len, inuse;
ftdm_size_t wr = 0;
const char *p;
assert(ftdmchan != NULL);
if (ftdmchan->pre_buffer) {
ftdm_buffer_zero(ftdmchan->pre_buffer);
}
ftdm_mutex_lock(ftdmchan->mutex);
inuse = ftdm_buffer_inuse(ftdmchan->digit_buffer);
len = strlen(dtmf);
if (len + inuse > ftdm_buffer_len(ftdmchan->digit_buffer)) {
ftdm_buffer_toss(ftdmchan->digit_buffer, strlen(dtmf));
}
if (ftdmchan->span->dtmf_hangup_len) {
for (p = dtmf; ftdm_is_dtmf(*p); p++) {
memmove (ftdmchan->dtmf_hangup_buf, ftdmchan->dtmf_hangup_buf + 1, ftdmchan->span->dtmf_hangup_len - 1);
ftdmchan->dtmf_hangup_buf[ftdmchan->span->dtmf_hangup_len - 1] = *p;
if (!strcmp(ftdmchan->dtmf_hangup_buf, ftdmchan->span->dtmf_hangup)) {
ftdm_log(FTDM_LOG_DEBUG, "DTMF hangup detected.\n");
ftdm_set_state_locked(ftdmchan, FTDM_CHANNEL_STATE_HANGUP);
break;
}
}
}
p = dtmf;
while (wr < len && p) {
if (ftdm_is_dtmf(*p)) {
wr++;
} else {
break;
}
p++;
}
status = ftdm_buffer_write(ftdmchan->digit_buffer, dtmf, wr) ? FTDM_SUCCESS : FTDM_FAIL;
ftdm_mutex_unlock(ftdmchan->mutex);
return status;
}
static ftdm_status_t handle_dtmf(ftdm_channel_t *ftdmchan, ftdm_size_t datalen)
{
ftdm_buffer_t *buffer = NULL;
ftdm_size_t dblen = 0;
int wrote = 0;
if (ftdmchan->gen_dtmf_buffer && (dblen = ftdm_buffer_inuse(ftdmchan->gen_dtmf_buffer))) {
char digits[128] = "";
char *cur;
int x = 0;
if (dblen > sizeof(digits) - 1) {
dblen = sizeof(digits) - 1;
}
if (ftdm_buffer_read(ftdmchan->gen_dtmf_buffer, digits, dblen) && !ftdm_strlen_zero_buf(digits)) {
ftdm_log(FTDM_LOG_DEBUG, "%d:%d GENERATE DTMF [%s]\n", ftdmchan->span_id, ftdmchan->chan_id, digits);
cur = digits;
if (*cur == 'F') {
ftdm_channel_command(ftdmchan, FTDM_COMMAND_FLASH, NULL);
cur++;
}
for (; *cur; cur++) {
if ((wrote = teletone_mux_tones(&ftdmchan->tone_session, &ftdmchan->tone_session.TONES[(int)*cur]))) {
ftdm_buffer_write(ftdmchan->dtmf_buffer, ftdmchan->tone_session.buffer, wrote * 2);
x++;
} else {
ftdm_log(FTDM_LOG_ERROR, "%d:%d Problem Adding DTMF SEQ [%s]\n", ftdmchan->span_id, ftdmchan->chan_id, digits);
return FTDM_FAIL;
}
}
if (x) {
ftdmchan->skip_read_frames = (wrote / (ftdmchan->effective_interval * 8)) + 4;
}
}
}
if (!ftdmchan->buffer_delay || --ftdmchan->buffer_delay == 0) {
if (ftdmchan->dtmf_buffer && (dblen = ftdm_buffer_inuse(ftdmchan->dtmf_buffer))) {
buffer = ftdmchan->dtmf_buffer;
} else if (ftdmchan->fsk_buffer && (dblen = ftdm_buffer_inuse(ftdmchan->fsk_buffer))) {
buffer = ftdmchan->fsk_buffer;
}
}
if (buffer) {
ftdm_size_t dlen = datalen;
uint8_t auxbuf[1024];
ftdm_size_t len, br, max = sizeof(auxbuf);
if (ftdmchan->native_codec != FTDM_CODEC_SLIN) {
dlen *= 2;
}
len = dblen > dlen ? dlen : dblen;
br = ftdm_buffer_read(buffer, auxbuf, len);
if (br < dlen) {
memset(auxbuf + br, 0, dlen - br);
}
if (ftdmchan->native_codec != FTDM_CODEC_SLIN) {
if (ftdmchan->native_codec == FTDM_CODEC_ULAW) {
zio_slin2ulaw(auxbuf, max, &dlen);
} else if (ftdmchan->native_codec == FTDM_CODEC_ALAW) {
zio_slin2alaw(auxbuf, max, &dlen);
}
}
return ftdmchan->zio->write(ftdmchan, auxbuf, &dlen);
}
return FTDM_SUCCESS;
}
FT_DECLARE(void) ftdm_generate_sln_silence(int16_t *data, uint32_t samples, uint32_t divisor)
{
int16_t x;
uint32_t i;
int sum_rnd = 0;
int16_t rnd2 = (int16_t) ftdm_current_time_in_ms() * (int16_t) (intptr_t) data;
assert(divisor);
for (i = 0; i < samples; i++, sum_rnd = 0) {
for (x = 0; x < 6; x++) {
rnd2 = rnd2 * 31821U + 13849U;
sum_rnd += rnd2 ;
}
//switch_normalize_to_16bit(sum_rnd);
*data = (int16_t) ((int16_t) sum_rnd / (int) divisor);
data++;
}
}
FT_DECLARE(ftdm_status_t) ftdm_channel_read(ftdm_channel_t *ftdmchan, void *data, ftdm_size_t *datalen)
{
ftdm_status_t status = FTDM_FAIL;
zio_codec_t codec_func = NULL;
ftdm_size_t max = *datalen;
unsigned i = 0;
assert(ftdmchan != NULL);
assert(ftdmchan->zio != NULL);
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OPEN)) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "channel not open");
return FTDM_FAIL;
}
if (!ftdmchan->zio->read) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "method not implemented");
return FTDM_FAIL;
}
status = ftdmchan->zio->read(ftdmchan, data, datalen);
if (ftdmchan->fds[0] > -1) {
int dlen = (int) *datalen;
if (write(ftdmchan->fds[0], data, dlen) != dlen) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "file write error!");
return FTDM_FAIL;
}
}
if (status == FTDM_SUCCESS) {
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_USE_RX_GAIN)
&& (ftdmchan->native_codec == FTDM_CODEC_ALAW || ftdmchan->native_codec == FTDM_CODEC_ULAW)) {
unsigned char *rdata = data;
for (i = 0; i < *datalen; i++) {
rdata[i] = ftdmchan->rxgain_table[rdata[i]];
}
}
handle_dtmf(ftdmchan, *datalen);
}
if (status == FTDM_SUCCESS && ftdm_test_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE) && ftdmchan->effective_codec != ftdmchan->native_codec) {
if (ftdmchan->native_codec == FTDM_CODEC_ULAW && ftdmchan->effective_codec == FTDM_CODEC_SLIN) {
codec_func = zio_ulaw2slin;
} else if (ftdmchan->native_codec == FTDM_CODEC_ULAW && ftdmchan->effective_codec == FTDM_CODEC_ALAW) {
codec_func = zio_ulaw2alaw;
} else if (ftdmchan->native_codec == FTDM_CODEC_ALAW && ftdmchan->effective_codec == FTDM_CODEC_SLIN) {
codec_func = zio_alaw2slin;
} else if (ftdmchan->native_codec == FTDM_CODEC_ALAW && ftdmchan->effective_codec == FTDM_CODEC_ULAW) {
codec_func = zio_alaw2ulaw;
}
if (codec_func) {
status = codec_func(data, max, datalen);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "codec error!");
status = FTDM_FAIL;
}
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT) || ftdm_test_flag(ftdmchan, FTDM_CHANNEL_PROGRESS_DETECT) ||
ftdm_test_flag(ftdmchan, FTDM_CHANNEL_CALLERID_DETECT)) {
uint8_t sln_buf[1024] = {0};
int16_t *sln;
ftdm_size_t slen = 0;
char digit_str[80] = "";
if (ftdmchan->effective_codec == FTDM_CODEC_SLIN) {
sln = data;
slen = *datalen / 2;
} else {
ftdm_size_t len = *datalen;
uint32_t i;
uint8_t *lp = data;
slen = sizeof(sln_buf) / 2;
if (len > slen) {
len = slen;
}
sln = (int16_t *) sln_buf;
for(i = 0; i < len; i++) {
if (ftdmchan->effective_codec == FTDM_CODEC_ULAW) {
*sln++ = ulaw_to_linear(*lp++);
} else if (ftdmchan->effective_codec == FTDM_CODEC_ALAW) {
*sln++ = alaw_to_linear(*lp++);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "codec error!");
return FTDM_FAIL;
}
}
sln = (int16_t *) sln_buf;
slen = len;
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_CALLERID_DETECT)) {
if (ftdm_fsk_demod_feed(&ftdmchan->fsk, sln, slen) != FTDM_SUCCESS) {
ftdm_size_t type, mlen;
char str[128], *sp;
while(ftdm_fsk_data_parse(&ftdmchan->fsk, &type, &sp, &mlen) == FTDM_SUCCESS) {
*(str+mlen) = '\0';
ftdm_copy_string(str, sp, ++mlen);
ftdm_clean_string(str);
ftdm_log(FTDM_LOG_DEBUG, "FSK: TYPE %s LEN %d VAL [%s]\n", ftdm_mdmf_type2str(type), mlen-1, str);
switch(type) {
case MDMF_DDN:
case MDMF_PHONE_NUM:
{
if (mlen > sizeof(ftdmchan->caller_data.ani)) {
mlen = sizeof(ftdmchan->caller_data.ani);
}
ftdm_set_string(ftdmchan->caller_data.ani.digits, str);
ftdm_set_string(ftdmchan->caller_data.cid_num.digits, ftdmchan->caller_data.ani.digits);
}
break;
case MDMF_NO_NUM:
{
ftdm_set_string(ftdmchan->caller_data.ani.digits, *str == 'P' ? "private" : "unknown");
ftdm_set_string(ftdmchan->caller_data.cid_name, ftdmchan->caller_data.ani.digits);
}
break;
case MDMF_PHONE_NAME:
{
if (mlen > sizeof(ftdmchan->caller_data.cid_name)) {
mlen = sizeof(ftdmchan->caller_data.cid_name);
}
ftdm_set_string(ftdmchan->caller_data.cid_name, str);
}
break;
case MDMF_NO_NAME:
{
ftdm_set_string(ftdmchan->caller_data.cid_name, *str == 'P' ? "private" : "unknown");
}
case MDMF_DATETIME:
{
if (mlen > sizeof(ftdmchan->caller_data.cid_date)) {
mlen = sizeof(ftdmchan->caller_data.cid_date);
}
ftdm_set_string(ftdmchan->caller_data.cid_date, str);
}
break;
}
}
ftdm_channel_command(ftdmchan, FTDM_COMMAND_DISABLE_CALLERID_DETECT, NULL);
}
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_PROGRESS_DETECT) && !ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_PROGRESS)) {
uint32_t i;
for (i = 1; i < FTDM_TONEMAP_INVALID; i++) {
if (ftdmchan->span->tone_finder[i].tone_count) {
if (ftdmchan->needed_tones[i] && teletone_multi_tone_detect(&ftdmchan->span->tone_finder[i], sln, (int)slen)) {
if (++ftdmchan->detected_tones[i]) {
ftdmchan->needed_tones[i] = 0;
ftdmchan->detected_tones[0]++;
}
}
}
}
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_DTMF_DETECT) && !ftdm_channel_test_feature(ftdmchan, FTDM_CHANNEL_FEATURE_DTMF_DETECT)) {
teletone_dtmf_detect(&ftdmchan->dtmf_detect, sln, (int)slen);
teletone_dtmf_get(&ftdmchan->dtmf_detect, digit_str, sizeof(digit_str));
if(*digit_str) {
zio_event_cb_t event_callback = NULL;
if (ftdmchan->state == FTDM_CHANNEL_STATE_CALLWAITING && (*digit_str == 'D' || *digit_str == 'A')) {
ftdmchan->detected_tones[FTDM_TONEMAP_CALLWAITING_ACK]++;
} else {
ftdm_channel_queue_dtmf(ftdmchan, digit_str);
if (ftdmchan->span->event_callback) {
event_callback = ftdmchan->span->event_callback;
} else if (ftdmchan->event_callback) {
event_callback = ftdmchan->event_callback;
}
if (event_callback) {
ftdmchan->event_header.channel = ftdmchan;
ftdmchan->event_header.e_type = FTDM_EVENT_DTMF;
ftdmchan->event_header.data = digit_str;
event_callback(ftdmchan, &ftdmchan->event_header);
ftdmchan->event_header.e_type = FTDM_EVENT_NONE;
ftdmchan->event_header.data = NULL;
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_SUPRESS_DTMF)) {
ftdmchan->skip_read_frames = 20;
}
}
}
}
}
if (ftdmchan->skip_read_frames > 0 || ftdm_test_flag(ftdmchan, FTDM_CHANNEL_MUTE)) {
ftdm_mutex_lock(ftdmchan->pre_buffer_mutex);
if (ftdmchan->pre_buffer && ftdm_buffer_inuse(ftdmchan->pre_buffer)) {
ftdm_buffer_zero(ftdmchan->pre_buffer);
}
ftdm_mutex_unlock(ftdmchan->pre_buffer_mutex);
memset(data, 255, *datalen);
if (ftdmchan->skip_read_frames > 0) {
ftdmchan->skip_read_frames--;
}
} else {
ftdm_mutex_lock(ftdmchan->pre_buffer_mutex);
if (ftdmchan->pre_buffer_size && ftdmchan->pre_buffer) {
ftdm_buffer_write(ftdmchan->pre_buffer, data, *datalen);
if (ftdm_buffer_inuse(ftdmchan->pre_buffer) >= ftdmchan->pre_buffer_size) {
ftdm_buffer_read(ftdmchan->pre_buffer, data, *datalen);
} else {
memset(data, 255, *datalen);
}
}
ftdm_mutex_unlock(ftdmchan->pre_buffer_mutex);
}
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_write(ftdm_channel_t *ftdmchan, void *data, ftdm_size_t datasize, ftdm_size_t *datalen)
{
ftdm_status_t status = FTDM_FAIL;
zio_codec_t codec_func = NULL;
ftdm_size_t max = datasize;
unsigned int i = 0;
assert(ftdmchan != NULL);
assert(ftdmchan->zio != NULL);
if (!ftdmchan->buffer_delay &&
((ftdmchan->dtmf_buffer && ftdm_buffer_inuse(ftdmchan->dtmf_buffer)) ||
(ftdmchan->fsk_buffer && ftdm_buffer_inuse(ftdmchan->fsk_buffer)))) {
/* read size writing DTMF ATM */
return FTDM_SUCCESS;
}
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OPEN)) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "channel not open");
return FTDM_FAIL;
}
if (!ftdmchan->zio->write) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "method not implemented");
return FTDM_FAIL;
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_TRANSCODE) && ftdmchan->effective_codec != ftdmchan->native_codec) {
if (ftdmchan->native_codec == FTDM_CODEC_ULAW && ftdmchan->effective_codec == FTDM_CODEC_SLIN) {
codec_func = zio_slin2ulaw;
} else if (ftdmchan->native_codec == FTDM_CODEC_ULAW && ftdmchan->effective_codec == FTDM_CODEC_ALAW) {
codec_func = zio_alaw2ulaw;
} else if (ftdmchan->native_codec == FTDM_CODEC_ALAW && ftdmchan->effective_codec == FTDM_CODEC_SLIN) {
codec_func = zio_slin2alaw;
} else if (ftdmchan->native_codec == FTDM_CODEC_ALAW && ftdmchan->effective_codec == FTDM_CODEC_ULAW) {
codec_func = zio_ulaw2alaw;
}
if (codec_func) {
status = codec_func(data, max, datalen);
} else {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "codec error!");
status = FTDM_FAIL;
}
}
if (ftdmchan->fds[1] > -1) {
int dlen = (int) *datalen;
if ((write(ftdmchan->fds[1], data, dlen)) != dlen) {
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "file write error!");
return FTDM_FAIL;
}
}
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_USE_TX_GAIN)
&& (ftdmchan->native_codec == FTDM_CODEC_ALAW || ftdmchan->native_codec == FTDM_CODEC_ULAW)) {
unsigned char *wdata = data;
for (i = 0; i < *datalen; i++) {
wdata[i] = ftdmchan->txgain_table[wdata[i]];
}
}
status = ftdmchan->zio->write(ftdmchan, data, datalen);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_clear_vars(ftdm_channel_t *ftdmchan)
{
if(ftdmchan->variable_hash) {
hashtable_destroy(ftdmchan->variable_hash);
}
ftdmchan->variable_hash = create_hashtable(16, ftdm_hash_hashfromstring, ftdm_hash_equalkeys);
if(!ftdmchan->variable_hash)
return FTDM_FAIL;
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_add_var(ftdm_channel_t *ftdmchan, const char *var_name, const char *value)
{
char *t_name = 0, *t_val = 0;
if(!ftdmchan->variable_hash || !var_name || !value)
{
return FTDM_FAIL;
}
t_name = ftdm_strdup(var_name);
t_val = ftdm_strdup(value);
if(hashtable_insert(ftdmchan->variable_hash, t_name, t_val, HASHTABLE_FLAG_FREE_KEY | HASHTABLE_FLAG_FREE_VALUE)) {
return FTDM_SUCCESS;
}
return FTDM_FAIL;
}
FT_DECLARE(const char *) ftdm_channel_get_var(ftdm_channel_t *ftdmchan, const char *var_name)
{
if(!ftdmchan->variable_hash || !var_name)
{
return NULL;
}
return (const char *) hashtable_search(ftdmchan->variable_hash, (void *)var_name);
}
static struct {
ftdm_io_interface_t *pika_interface;
} interfaces;
FT_DECLARE(char *) ftdm_api_execute(const char *type, const char *cmd)
{
ftdm_io_interface_t *zio = NULL;
char *dup = NULL, *p;
char *rval = NULL;
if (type && !cmd) {
dup = ftdm_strdup(type);
if ((p = strchr(dup, ' '))) {
*p++ = '\0';
cmd = p;
}
type = dup;
}
ftdm_mutex_lock(globals.mutex);
if (!(zio = (ftdm_io_interface_t *) hashtable_search(globals.interface_hash, (void *)type))) {
ftdm_load_module_assume(type);
if ((zio = (ftdm_io_interface_t *) hashtable_search(globals.interface_hash, (void *)type))) {
ftdm_log(FTDM_LOG_INFO, "auto-loaded '%s'\n", type);
}
}
ftdm_mutex_unlock(globals.mutex);
if (zio && zio->api) {
ftdm_stream_handle_t stream = { 0 };
ftdm_status_t status;
FTDM_STANDARD_STREAM(stream);
status = zio->api(&stream, cmd);
if (status != FTDM_SUCCESS) {
ftdm_safe_free(stream.data);
} else {
rval = (char *) stream.data;
}
}
ftdm_safe_free(dup);
return rval;
}
static ftdm_status_t load_config(void)
{
char cfg_name[] = "freetdm.conf";
ftdm_config_t cfg;
char *var, *val;
int catno = -1;
ftdm_span_t *span = NULL;
unsigned configured = 0, d = 0;
char name[80] = "";
char number[25] = "";
char group_name[80] = "default";
ftdm_io_interface_t *zio = NULL;
ftdm_analog_start_type_t tmp;
ftdm_size_t len = 0;
if (!ftdm_config_open_file(&cfg, cfg_name)) {
return FTDM_FAIL;
}
while (ftdm_config_next_pair(&cfg, &var, &val)) {
if (*cfg.category == '#') {
if (cfg.catno != catno) {
ftdm_log(FTDM_LOG_DEBUG, "Skipping %s\n", cfg.category);
catno = cfg.catno;
}
} else if (!strncasecmp(cfg.category, "span", 4)) {
if (cfg.catno != catno) {
char *type = cfg.category + 4;
char *name;
if (*type == ' ') {
type++;
}
ftdm_log(FTDM_LOG_DEBUG, "found config for span\n");
catno = cfg.catno;
if (ftdm_strlen_zero(type)) {
ftdm_log(FTDM_LOG_CRIT, "failure creating span, no type specified.\n");
span = NULL;
continue;
}
if ((name = strchr(type, ' '))) {
*name++ = '\0';
}
ftdm_mutex_lock(globals.mutex);
if (!(zio = (ftdm_io_interface_t *) hashtable_search(globals.interface_hash, type))) {
ftdm_load_module_assume(type);
if ((zio = (ftdm_io_interface_t *) hashtable_search(globals.interface_hash, type))) {
ftdm_log(FTDM_LOG_INFO, "auto-loaded '%s'\n", type);
}
}
ftdm_mutex_unlock(globals.mutex);
if (!zio) {
ftdm_log(FTDM_LOG_CRIT, "failure creating span, no such type '%s'\n", type);
span = NULL;
continue;
}
if (!zio->configure_span) {
ftdm_log(FTDM_LOG_CRIT, "failure creating span, no configure_span method for '%s'\n", type);
span = NULL;
continue;
}
if (ftdm_span_create(zio, &span, name) == FTDM_SUCCESS) {
span->type = ftdm_strdup(type);
d = 0;
ftdm_log(FTDM_LOG_DEBUG, "created span %d (%s) of type %s\n", span->span_id, span->name, type);
} else {
ftdm_log(FTDM_LOG_CRIT, "failure creating span of type %s\n", type);
span = NULL;
continue;
}
}
if (!span) {
continue;
}
ftdm_log(FTDM_LOG_DEBUG, "span %d [%s]=[%s]\n", span->span_id, var, val);
if (!strcasecmp(var, "trunk_type")) {
span->trunk_type = ftdm_str2ftdm_trunk_type(val);
ftdm_log(FTDM_LOG_DEBUG, "setting trunk type to '%s'\n", ftdm_trunk_type2str(span->trunk_type));
} else if (!strcasecmp(var, "name")) {
if (!strcasecmp(val, "undef")) {
*name = '\0';
} else {
ftdm_copy_string(name, val, sizeof(name));
}
} else if (!strcasecmp(var, "number")) {
if (!strcasecmp(val, "undef")) {
*number = '\0';
} else {
ftdm_copy_string(number, val, sizeof(number));
}
} else if (!strcasecmp(var, "analog-start-type")) {
if (span->trunk_type == FTDM_TRUNK_FXS || span->trunk_type == FTDM_TRUNK_FXO || span->trunk_type == FTDM_TRUNK_EM) {
if ((tmp = ftdm_str2ftdm_analog_start_type(val)) != FTDM_ANALOG_START_NA) {
span->start_type = tmp;
ftdm_log(FTDM_LOG_DEBUG, "changing start type to '%s'\n", ftdm_analog_start_type2str(span->start_type));
}
} else {
ftdm_log(FTDM_LOG_ERROR, "This option is only valid on analog trunks!\n");
}
} else if (!strcasecmp(var, "fxo-channel")) {
if (span->trunk_type == FTDM_TRUNK_NONE) {
span->trunk_type = FTDM_TRUNK_FXO;
ftdm_log(FTDM_LOG_DEBUG, "setting trunk type to '%s' start(%s)\n", ftdm_trunk_type2str(span->trunk_type),
ftdm_analog_start_type2str(span->start_type));
}
if (span->trunk_type == FTDM_TRUNK_FXO) {
configured += zio->configure_span(span, val, FTDM_CHAN_TYPE_FXO, name, number);
} else {
ftdm_log(FTDM_LOG_WARNING, "Cannot add FXO channels to an FXS trunk!\n");
}
} else if (!strcasecmp(var, "fxs-channel")) {
if (span->trunk_type == FTDM_TRUNK_NONE) {
span->trunk_type = FTDM_TRUNK_FXS;
ftdm_log(FTDM_LOG_DEBUG, "setting trunk type to '%s' start(%s)\n", ftdm_trunk_type2str(span->trunk_type),
ftdm_analog_start_type2str(span->start_type));
}
if (span->trunk_type == FTDM_TRUNK_FXS) {
configured += zio->configure_span(span, val, FTDM_CHAN_TYPE_FXS, name, number);
} else {
ftdm_log(FTDM_LOG_WARNING, "Cannot add FXS channels to an FXO trunk!\n");
}
} else if (!strcasecmp(var, "em-channel")) {
if (span->trunk_type == FTDM_TRUNK_NONE) {
span->trunk_type = FTDM_TRUNK_EM;
ftdm_log(FTDM_LOG_DEBUG, "setting trunk type to '%s' start(%s)\n", ftdm_trunk_type2str(span->trunk_type),
ftdm_analog_start_type2str(span->start_type));
}
if (span->trunk_type == FTDM_TRUNK_EM) {
configured += zio->configure_span(span, val, FTDM_CHAN_TYPE_EM, name, number);
} else {
ftdm_log(FTDM_LOG_WARNING, "Cannot add EM channels to a non-EM trunk!\n");
}
} else if (!strcasecmp(var, "b-channel")) {
configured += zio->configure_span(span, val, FTDM_CHAN_TYPE_B, name, number);
ftdm_group_add_channels(group_name, span, val);
} else if (!strcasecmp(var, "d-channel")) {
if (d) {
ftdm_log(FTDM_LOG_WARNING, "ignoring extra d-channel\n");
} else {
ftdm_chan_type_t qtype;
if (!strncasecmp(val, "lapd:", 5)) {
qtype = FTDM_CHAN_TYPE_DQ931;
val += 5;
} else {
qtype = FTDM_CHAN_TYPE_DQ921;
}
configured += zio->configure_span(span, val, qtype, name, number);
d++;
}
} else if (!strcasecmp(var, "cas-channel")) {
configured += zio->configure_span(span, val, FTDM_CHAN_TYPE_CAS, name, number);
} else if (!strcasecmp(var, "dtmf_hangup")) {
span->dtmf_hangup = ftdm_strdup(val);
span->dtmf_hangup_len = strlen(val);
} else if (!strcasecmp(var, "group")) {
len = strlen(val);
if (len >= sizeof(group_name)) {
len = sizeof(group_name) - 1;
ftdm_log(FTDM_LOG_WARNING, "Truncating group name %s to %zd length\n", val, len);
}
memcpy(group_name, val, len);
group_name[len] = '\0';
} else {
ftdm_log(FTDM_LOG_ERROR, "unknown span variable '%s'\n", var);
}
} else {
ftdm_log(FTDM_LOG_ERROR, "unknown param [%s] '%s' / '%s'\n", cfg.category, var, val);
}
}
ftdm_config_close_file(&cfg);
ftdm_log(FTDM_LOG_INFO, "Configured %u channel(s)\n", configured);
return configured ? FTDM_SUCCESS : FTDM_FAIL;
}
static ftdm_status_t process_module_config(ftdm_io_interface_t *zio)
{
ftdm_config_t cfg;
char *var, *val;
char filename[256] = "";
ftdm_assert_return(zio != NULL, FTDM_FAIL, "zio argument is null\n");
snprintf(filename, sizeof(filename), "%s.conf", zio->name);
if (!zio->configure) {
ftdm_log(FTDM_LOG_DEBUG, "Module %s does not support configuration.\n", zio->name);
return FTDM_FAIL;
}
if (!ftdm_config_open_file(&cfg, filename)) {
ftdm_log(FTDM_LOG_ERROR, "Cannot open %s\n", filename);
return FTDM_FAIL;
}
while (ftdm_config_next_pair(&cfg, &var, &val)) {
zio->configure(cfg.category, var, val, cfg.lineno);
}
ftdm_config_close_file(&cfg);
return FTDM_SUCCESS;
}
FT_DECLARE(char *) ftdm_build_dso_path(const char *name, char *path, ftdm_size_t len)
{
#ifdef WIN32
const char *ext = ".dll";
//const char *EXT = ".DLL";
#define FTDM_MOD_DIR "." //todo
#elif defined (MACOSX) || defined (DARWIN)
const char *ext = ".dylib";
//const char *EXT = ".DYLIB";
#else
const char *ext = ".so";
//const char *EXT = ".SO";
#endif
if (*name == *FTDM_PATH_SEPARATOR) {
snprintf(path, len, "%s%s", name, ext);
} else {
snprintf(path, len, "%s%s%s%s", FTDM_MOD_DIR, FTDM_PATH_SEPARATOR, name, ext);
}
return path;
}
FT_DECLARE(ftdm_status_t) ftdm_global_add_io_interface(ftdm_io_interface_t *interface1)
{
ftdm_status_t ret = FTDM_SUCCESS;
ftdm_mutex_lock(globals.mutex);
if (hashtable_search(globals.interface_hash, (void *)interface1->name)) {
ftdm_log(FTDM_LOG_ERROR, "Interface %s already loaded!\n", interface1->name);
} else {
hashtable_insert(globals.interface_hash, (void *)interface1->name, interface1, HASHTABLE_FLAG_NONE);
}
ftdm_mutex_unlock(globals.mutex);
return ret;
}
FT_DECLARE(int) ftdm_load_module(const char *name)
{
ftdm_dso_lib_t lib;
int count = 0, x = 0;
char path[128] = "";
char *err;
ftdm_module_t *mod;
ftdm_build_dso_path(name, path, sizeof(path));
if (!(lib = ftdm_dso_open(path, &err))) {
ftdm_log(FTDM_LOG_ERROR, "Error loading %s [%s]\n", path, err);
ftdm_safe_free(err);
return 0;
}
if (!(mod = (ftdm_module_t *) ftdm_dso_func_sym(lib, "ftdm_module", &err))) {
ftdm_log(FTDM_LOG_ERROR, "Error loading %s [%s]\n", path, err);
ftdm_safe_free(err);
return 0;
}
if (mod->io_load) {
ftdm_io_interface_t *interface1 = NULL; /* name conflict w/windows here */
if (mod->io_load(&interface1) != FTDM_SUCCESS || !interface1 || !interface1->name) {
ftdm_log(FTDM_LOG_ERROR, "Error loading %s\n", path);
} else {
ftdm_log(FTDM_LOG_INFO, "Loading IO from %s [%s]\n", path, interface1->name);
if (ftdm_global_add_io_interface(interface1) == FTDM_SUCCESS) {
process_module_config(interface1);
x++;
}
}
}
if (mod->sig_load) {
if (mod->sig_load() != FTDM_SUCCESS) {
ftdm_log(FTDM_LOG_ERROR, "Error loading %s\n", path);
} else {
ftdm_log(FTDM_LOG_INFO, "Loading SIG from %s\n", path);
x++;
}
}
if (x) {
char *p;
mod->lib = lib;
ftdm_set_string(mod->path, path);
if (mod->name[0] == '\0') {
if (!(p = strrchr(path, *FTDM_PATH_SEPARATOR))) {
p = path;
}
ftdm_set_string(mod->name, p);
}
ftdm_mutex_lock(globals.mutex);
if (hashtable_search(globals.module_hash, (void *)mod->name)) {
ftdm_log(FTDM_LOG_ERROR, "Module %s already loaded!\n", mod->name);
ftdm_dso_destroy(&lib);
} else {
hashtable_insert(globals.module_hash, (void *)mod->name, mod, HASHTABLE_FLAG_NONE);
count++;
}
ftdm_mutex_unlock(globals.mutex);
} else {
ftdm_log(FTDM_LOG_ERROR, "Unloading %s\n", path);
ftdm_dso_destroy(&lib);
}
return count;
}
FT_DECLARE(int) ftdm_load_module_assume(const char *name)
{
char buf[256] = "";
snprintf(buf, sizeof(buf), "ftmod_%s", name);
return ftdm_load_module(buf);
}
FT_DECLARE(int) ftdm_load_modules(void)
{
char cfg_name[] = "modules.conf";
ftdm_config_t cfg;
char *var, *val;
int count = 0;
if (!ftdm_config_open_file(&cfg, cfg_name)) {
return FTDM_FAIL;
}
while (ftdm_config_next_pair(&cfg, &var, &val)) {
if (!strcasecmp(cfg.category, "modules")) {
if (!strcasecmp(var, "load")) {
count += ftdm_load_module(val);
}
}
}
return count;
}
FT_DECLARE(ftdm_status_t) ftdm_unload_modules(void)
{
ftdm_hash_iterator_t *i;
ftdm_dso_lib_t lib;
for (i = hashtable_first(globals.module_hash); i; i = hashtable_next(i)) {
const void *key;
void *val;
hashtable_this(i, &key, NULL, &val);
if (key && val) {
ftdm_module_t *mod = (ftdm_module_t *) val;
if (!mod) {
continue;
}
if (mod->io_unload) {
if (mod->io_unload() == FTDM_SUCCESS) {
ftdm_log(FTDM_LOG_INFO, "Unloading IO %s\n", mod->name);
} else {
ftdm_log(FTDM_LOG_ERROR, "Error unloading IO %s\n", mod->name);
}
}
if (mod->sig_unload) {
if (mod->sig_unload() == FTDM_SUCCESS) {
ftdm_log(FTDM_LOG_INFO, "Unloading SIG %s\n", mod->name);
} else {
ftdm_log(FTDM_LOG_ERROR, "Error unloading SIG %s\n", mod->name);
}
}
ftdm_log(FTDM_LOG_INFO, "Unloading %s\n", mod->path);
lib = mod->lib;
ftdm_dso_destroy(&lib);
}
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_configure_span(const char *type, ftdm_span_t *span, zio_signal_cb_t sig_cb, ...)
{
ftdm_module_t *mod = (ftdm_module_t *) hashtable_search(globals.module_hash, (void *)type);
ftdm_status_t status = FTDM_FAIL;
if (!mod) {
ftdm_load_module_assume(type);
if ((mod = (ftdm_module_t *) hashtable_search(globals.module_hash, (void *)type))) {
ftdm_log(FTDM_LOG_INFO, "auto-loaded '%s'\n", type);
}
}
if (mod && mod->sig_configure) {
va_list ap;
va_start(ap, sig_cb);
status = mod->sig_configure(span, sig_cb, ap);
va_end(ap);
} else {
ftdm_log(FTDM_LOG_ERROR, "can't find '%s'\n", type);
status = FTDM_FAIL;
}
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_configure_span_signaling(const char *type, ftdm_span_t *span, zio_signal_cb_t sig_cb, ftdm_conf_parameter_t *parameters)
{
ftdm_module_t *mod = (ftdm_module_t *) hashtable_search(globals.module_hash, (void *)type);
ftdm_status_t status = FTDM_FAIL;
ftdm_assert_return(type != NULL, FTDM_FAIL, "No signaling type");
ftdm_assert_return(span != NULL, FTDM_FAIL, "No span");
ftdm_assert_return(sig_cb != NULL, FTDM_FAIL, "No signaling callback");
ftdm_assert_return(parameters != NULL, FTDM_FAIL, "No parameters");
if (!mod) {
ftdm_load_module_assume(type);
if ((mod = (ftdm_module_t *) hashtable_search(globals.module_hash, (void *)type))) {
ftdm_log(FTDM_LOG_INFO, "auto-loaded '%s'\n", type);
}
}
if (!mod) {
ftdm_log(FTDM_LOG_ERROR, "Failed to load module type: %s\n", type);
return FTDM_FAIL;
}
if (mod->configure_span_signaling) {
status = mod->configure_span_signaling(span, sig_cb, parameters);
} else {
ftdm_log(FTDM_LOG_ERROR, "Module %s did not implement the signaling configuration method\n", type);
}
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_span_start(ftdm_span_t *span)
{
if (span->start) {
return span->start(span);
}
return FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_add_to_group(const char* name, ftdm_channel_t* ftdmchan)
{
int i;
ftdm_group_t* group = NULL;
ftdm_mutex_lock(globals.group_mutex);
if (ftdm_group_find_by_name(name, &group) != FTDM_SUCCESS) {
ftdm_log(FTDM_LOG_DEBUG, "Creating new group:%s\n", name);
ftdm_group_create(&group, name);
}
/*verify that group does not already include this channel first */
for(i=0; i < group->chan_count; i++) {
if (group->channels[i]->physical_span_id == ftdmchan->physical_span_id &&
group->channels[i]->physical_chan_id == ftdmchan->physical_chan_id) {
ftdm_mutex_unlock(globals.group_mutex);
return FTDM_SUCCESS;
}
}
if (group->chan_count >= FTDM_MAX_CHANNELS_GROUP) {
ftdm_log(FTDM_LOG_CRIT, "Max number of channels exceeded (max:%d)\n", FTDM_MAX_CHANNELS_GROUP);
ftdm_mutex_unlock(globals.group_mutex);
return FTDM_FAIL;
}
group->channels[group->chan_count++] = ftdmchan;
ftdm_mutex_unlock(globals.group_mutex);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_channel_remove_from_group(ftdm_group_t* group, ftdm_channel_t* ftdmchan)
{
//Need to test this function
ftdm_mutex_lock(globals.group_mutex);
int i, j;
for (i=0; i < group->chan_count; i++) {
if (group->channels[i]->physical_span_id == ftdmchan->physical_span_id &&
group->channels[i]->physical_chan_id == ftdmchan->physical_chan_id) {
j=i;
while(j < group->chan_count-1) {
group->channels[j] = group->channels[j+1];
j++;
}
group->channels[group->chan_count--] = NULL;
if (group->chan_count <=0) {
/* Delete group if it is empty */
hashtable_remove(globals.group_hash, (void *)group->name);
}
ftdm_mutex_unlock(globals.group_mutex);
return FTDM_SUCCESS;
}
}
ftdm_mutex_unlock(globals.group_mutex);
//Group does not contain this channel
return FTDM_FAIL;
}
FT_DECLARE(ftdm_status_t) ftdm_group_add_channels(const char* name, ftdm_span_t* span, const char* val)
{
char *p, *mydata, *item_list[10];
int items, i;
assert(strlen(name) > 0);
p = strchr(val, ':');
mydata = ftdm_strdup(++p);
ftdm_assert_return(mydata != NULL, FTDM_FAIL, "ftdm_strdup failed when adding channels\n");
items = ftdm_separate_string(mydata, ',', item_list, (sizeof(item_list) / sizeof(item_list[0])));
for(i=0; i < items; i++) {
if (!strchr(item_list[i], '-')) {
int chan_no;
chan_no = atoi (item_list[i]);
ftdm_assert(chan_no > 0, "Channel number is not bigger than zero, expect a nasty failure!\n");
if (ftdm_channel_add_to_group(name, span->channels[chan_no]) != FTDM_SUCCESS) {
ftdm_log(FTDM_LOG_CRIT, "Failed to add chan:%d to group:%s\n", chan_no, name);
}
} else {
int chan_no_start, chan_no_end;
if (sscanf(item_list[i], "%d-%d", &chan_no_start, &chan_no_end) == 2) {
while (chan_no_start <= chan_no_end) {
if (ftdm_channel_add_to_group(name, span->channels[chan_no_start++])) {
ftdm_log(FTDM_LOG_CRIT, "Failed to add chan:%d to group:%s\n", chan_no_start-1, name);
}
}
}
}
}
ftdm_safe_free(mydata);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_group_find(uint32_t id, ftdm_group_t **group)
{
ftdm_group_t *fgroup = NULL, *grp;
if (id > FTDM_MAX_GROUPS_INTERFACE) {
return FTDM_FAIL;
}
ftdm_mutex_lock(globals.group_mutex);
for (grp = globals.groups; grp; grp = grp->next) {
if (grp->group_id == id) {
fgroup = grp;
break;
}
}
ftdm_mutex_unlock(globals.group_mutex);
if (!fgroup) {
return FTDM_FAIL;
}
*group = fgroup;
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_group_find_by_name(const char *name, ftdm_group_t **group)
{
ftdm_status_t status = FTDM_FAIL;
*group = NULL;
ftdm_mutex_lock(globals.group_mutex);
if (!ftdm_strlen_zero(name)) {
if ((*group = hashtable_search(globals.group_hash, (void *) name))) {
status = FTDM_SUCCESS;
}
}
ftdm_mutex_unlock(globals.group_mutex);
return status;
}
static void ftdm_group_add(ftdm_group_t *group)
{
ftdm_group_t *grp;
ftdm_mutex_lock(globals.group_mutex);
for (grp = globals.groups; grp && grp->next; grp = grp->next);
if (grp) {
grp->next = group;
} else {
globals.groups = group;
}
hashtable_insert(globals.group_hash, (void *)group->name, group, HASHTABLE_FLAG_NONE);
ftdm_mutex_unlock(globals.group_mutex);
}
FT_DECLARE(ftdm_status_t) ftdm_group_create(ftdm_group_t **group, const char *name)
{
ftdm_group_t *new_group = NULL;
ftdm_status_t status = FTDM_FAIL;
ftdm_mutex_lock(globals.mutex);
if (globals.group_index < FTDM_MAX_GROUPS_INTERFACE) {
new_group = ftdm_calloc(1, sizeof(*new_group));
ftdm_assert(new_group != NULL, "Failed to create new ftdm group, expect a crash\n");
status = ftdm_mutex_create(&new_group->mutex);
ftdm_assert(status == FTDM_SUCCESS, "Failed to create group mutex, expect a crash\n");
new_group->group_id = ++globals.group_index;
new_group->name = ftdm_strdup(name);
ftdm_group_add(new_group);
*group = new_group;
status = FTDM_SUCCESS;
} else {
ftdm_log(FTDM_LOG_CRIT, "Group %s was not added, we exceeded the max number of groups\n", name);
}
ftdm_mutex_unlock(globals.mutex);
return status;
}
FT_DECLARE(ftdm_status_t) ftdm_global_init(void)
{
memset(&globals, 0, sizeof(globals));
time_init();
ftdm_thread_override_default_stacksize(FTDM_THREAD_STACKSIZE);
memset(&interfaces, 0, sizeof(interfaces));
globals.interface_hash = create_hashtable(16, ftdm_hash_hashfromstring, ftdm_hash_equalkeys);
globals.module_hash = create_hashtable(16, ftdm_hash_hashfromstring, ftdm_hash_equalkeys);
globals.span_hash = create_hashtable(16, ftdm_hash_hashfromstring, ftdm_hash_equalkeys);
globals.group_hash = create_hashtable(16, ftdm_hash_hashfromstring, ftdm_hash_equalkeys);
ftdm_mutex_create(&globals.mutex);
ftdm_mutex_create(&globals.span_mutex);
ftdm_mutex_create(&globals.group_mutex);
globals.running = 1;
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_global_configuration(void)
{
int modcount = ftdm_load_modules();
ftdm_log(FTDM_LOG_NOTICE, "Modules configured: %d \n", modcount);
if (load_config() != FTDM_SUCCESS) {
globals.running = 0;
ftdm_log(FTDM_LOG_ERROR, "OpenZap global configuration failed!\n");
return FTDM_FAIL;
}
return FTDM_SUCCESS;
}
FT_DECLARE(uint32_t) ftdm_running(void)
{
return globals.running;
}
FT_DECLARE(ftdm_status_t) ftdm_global_destroy(void)
{
ftdm_span_t *sp;
time_end();
globals.running = 0;
ftdm_span_close_all();
ftdm_sleep(1000);
ftdm_mutex_lock(globals.span_mutex);
for (sp = globals.spans; sp;) {
ftdm_span_t *cur_span = sp;
sp = sp->next;
if (cur_span) {
if (ftdm_test_flag(cur_span, FTDM_SPAN_CONFIGURED)) {
ftdm_span_destroy(cur_span);
}
hashtable_remove(globals.span_hash, (void *)cur_span->name);
ftdm_safe_free(cur_span->type);
ftdm_safe_free(cur_span->name);
ftdm_safe_free(cur_span);
cur_span = NULL;
}
}
globals.spans = NULL;
ftdm_mutex_unlock(globals.span_mutex);
globals.span_index = 0;
ftdm_unload_modules();
ftdm_mutex_lock(globals.mutex);
hashtable_destroy(globals.interface_hash);
hashtable_destroy(globals.module_hash);
hashtable_destroy(globals.span_hash);
ftdm_mutex_unlock(globals.mutex);
ftdm_mutex_destroy(&globals.mutex);
ftdm_mutex_destroy(&globals.span_mutex);
memset(&globals, 0, sizeof(globals));
return FTDM_SUCCESS;
}
FT_DECLARE(uint32_t) ftdm_separate_string(char *buf, char delim, char **array, int arraylen)
{
int argc;
char *ptr;
int quot = 0;
char qc = '\'';
int x;
if (!buf || !array || !arraylen) {
return 0;
}
memset(array, 0, arraylen * sizeof(*array));
ptr = buf;
for (argc = 0; *ptr && (argc < arraylen - 1); argc++) {
array[argc] = ptr;
for (; *ptr; ptr++) {
if (*ptr == qc) {
if (quot) {
quot--;
} else {
quot++;
}
} else if ((*ptr == delim) && !quot) {
*ptr++ = '\0';
break;
}
}
}
if (*ptr) {
array[argc++] = ptr;
}
/* strip quotes and leading / trailing spaces */
for (x = 0; x < argc; x++) {
char *p;
while(*(array[x]) == ' ') {
(array[x])++;
}
p = array[x];
while((p = strchr(array[x], qc))) {
memmove(p, p+1, strlen(p));
p++;
}
p = array[x] + (strlen(array[x]) - 1);
while(*p == ' ') {
*p-- = '\0';
}
}
return argc;
}
FT_DECLARE(void) ftdm_bitstream_init(ftdm_bitstream_t *bsp, uint8_t *data, uint32_t datalen, ftdm_endian_t endian, uint8_t ss)
{
memset(bsp, 0, sizeof(*bsp));
bsp->data = data;
bsp->datalen = datalen;
bsp->endian = endian;
bsp->ss = ss;
if (endian < 0) {
bsp->top = bsp->bit_index = 7;
bsp->bot = 0;
} else {
bsp->top = bsp->bit_index = 0;
bsp->bot = 7;
}
}
FT_DECLARE(int8_t) ftdm_bitstream_get_bit(ftdm_bitstream_t *bsp)
{
int8_t bit = -1;
if (bsp->byte_index >= bsp->datalen) {
goto done;
}
if (bsp->ss) {
if (!bsp->ssv) {
bsp->ssv = 1;
return 0;
} else if (bsp->ssv == 2) {
bsp->byte_index++;
bsp->ssv = 0;
return 1;
}
}
bit = (bsp->data[bsp->byte_index] >> (bsp->bit_index)) & 1;
if (bsp->bit_index == bsp->bot) {
bsp->bit_index = bsp->top;
if (bsp->ss) {
bsp->ssv = 2;
goto done;
}
if (++bsp->byte_index > bsp->datalen) {
bit = -1;
goto done;
}
} else {
bsp->bit_index = bsp->bit_index + bsp->endian;
}
done:
return bit;
}
FT_DECLARE(void) print_hex_bytes(uint8_t *data, ftdm_size_t dlen, char *buf, ftdm_size_t blen)
{
char *bp = buf;
uint8_t *byte = data;
uint32_t i, j = 0;
if (blen < (dlen * 3) + 2) {
return;
}
*bp++ = '[';
j++;
for(i = 0; i < dlen; i++) {
snprintf(bp, blen-j, "%02x ", *byte++);
bp += 3;
j += 3;
}
*--bp = ']';
}
FT_DECLARE(void) print_bits(uint8_t *b, int bl, char *buf, int blen, ftdm_endian_t e, uint8_t ss)
{
ftdm_bitstream_t bs;
int j = 0, c = 0;
int8_t bit;
uint32_t last;
if (blen < (bl * 10) + 2) {
return;
}
ftdm_bitstream_init(&bs, b, bl, e, ss);
last = bs.byte_index;
while((bit = ftdm_bitstream_get_bit(&bs)) > -1) {
buf[j++] = bit ? '1' : '0';
if (bs.byte_index != last) {
buf[j++] = ' ';
last = bs.byte_index;
if (++c == 8) {
buf[j++] = '\n';
c = 0;
}
}
}
}
FT_DECLARE_NONSTD(ftdm_status_t) ftdm_console_stream_raw_write(ftdm_stream_handle_t *handle, uint8_t *data, ftdm_size_t datalen)
{
ftdm_size_t need = handle->data_len + datalen;
if (need >= handle->data_size) {
void *new_data;
need += handle->alloc_chunk;
if (!(new_data = realloc(handle->data, need))) {
return FTDM_MEMERR;
}
handle->data = new_data;
handle->data_size = need;
}
memcpy((uint8_t *) (handle->data) + handle->data_len, data, datalen);
handle->data_len += datalen;
handle->end = (uint8_t *) (handle->data) + handle->data_len;
*(uint8_t *)handle->end = '\0';
return FTDM_SUCCESS;
}
FT_DECLARE(int) ftdm_vasprintf(char **ret, const char *fmt, va_list ap) /* code from switch_apr.c */
{
#ifdef HAVE_VASPRINTF
return vasprintf(ret, fmt, ap);
#else
char *buf;
int len;
size_t buflen;
va_list ap2;
char *tmp = NULL;
#ifdef _MSC_VER
#if _MSC_VER >= 1500
/* hack for incorrect assumption in msvc header files for code analysis */
__analysis_assume(tmp);
#endif
ap2 = ap;
#else
va_copy(ap2, ap);
#endif
len = vsnprintf(tmp, 0, fmt, ap2);
if (len > 0 && (buf = ftdm_malloc((buflen = (size_t) (len + 1)))) != NULL) {
len = vsnprintf(buf, buflen, fmt, ap);
*ret = buf;
} else {
*ret = NULL;
len = -1;
}
va_end(ap2);
return len;
#endif
}
FT_DECLARE_NONSTD(ftdm_status_t) ftdm_console_stream_write(ftdm_stream_handle_t *handle, const char *fmt, ...)
{
va_list ap;
char *buf = handle->data;
char *end = handle->end;
int ret = 0;
char *data = NULL;
if (handle->data_len >= handle->data_size) {
return FTDM_FAIL;
}
va_start(ap, fmt);
ret = ftdm_vasprintf(&data, fmt, ap);
va_end(ap);
if (data) {
ftdm_size_t remaining = handle->data_size - handle->data_len;
ftdm_size_t need = strlen(data) + 1;
if ((remaining < need) && handle->alloc_len) {
ftdm_size_t new_len;
void *new_data;
new_len = handle->data_size + need + handle->alloc_chunk;
if ((new_data = realloc(handle->data, new_len))) {
handle->data_size = handle->alloc_len = new_len;
handle->data = new_data;
buf = handle->data;
remaining = handle->data_size - handle->data_len;
handle->end = (uint8_t *) (handle->data) + handle->data_len;
end = handle->end;
} else {
ftdm_log(FTDM_LOG_CRIT, "Memory Error!\n");
ftdm_safe_free(data);
return FTDM_FAIL;
}
}
if (remaining < need) {
ret = -1;
} else {
ret = 0;
snprintf(end, remaining, "%s", data);
handle->data_len = strlen(buf);
handle->end = (uint8_t *) (handle->data) + handle->data_len;
}
ftdm_safe_free(data);
}
return ret ? FTDM_FAIL : FTDM_SUCCESS;
}
FT_DECLARE(char *) ftdm_strdup(const char *str)
{
ftdm_size_t len = strlen(str) + 1;
void *new = ftdm_malloc(len);
if (!new) {
return NULL;
}
return (char *)memcpy(new, str, len);
}
FT_DECLARE(char *) ftdm_strndup(const char *str, ftdm_size_t inlen)
{
char *new = NULL;
ftdm_size_t len = strlen(str) + 1;
if (len > (inlen+1)) {
len = inlen+1;
}
new = (char *)ftdm_malloc(len);
if (!new) {
return NULL;
}
memcpy(new, str, len-1);
new[len-1] = 0;
return new;
}
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
*/
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