/* attempt to set the desired gain adjustment via the channel driver;
if successful, clear it out of the csth structure so the
generator will not attempt to do the adjustment itself
*/
static void set_volume(struct ast_channel *chan, struct chanspy_translation_helper *csth)
{
signed char volume_adjust = volfactor_map[csth->volfactor + 4];
if (!ast_channel_setoption(chan, AST_OPTION_TXGAIN, &volume_adjust, sizeof(volume_adjust), 0))
csth->volfactor = 0;
}
int set_talk_volume(struct ast_conf_member *member, struct ast_frame *f, int is_talk)
{
int ret=0;
signed char gain_adjust;
int volume = member->talk_volume;
gain_adjust = gain_map[volume + 5];
if (is_talk) {
/*
* attempt to make the adjustment in the channel driver first
*/
if ( !member->talk_volume_adjust) {
ret=ast_channel_setoption(member->chan, AST_OPTION_RXGAIN, &gain_adjust, sizeof(gain_adjust), 0);
if (ret)
member->talk_volume_adjust=1;
}
if (member->talk_volume_adjust && f) {
ret=ast_frame_adjust_volume(f, gain_adjust);
}
}
else
{
// Listen volume
ret=ast_frame_adjust_volume(f, gain_adjust);
}
return ret;
}
static int func_channel_write(struct ast_channel *chan, char *function,
char *data, const char *value)
{
int ret = 0;
signed char gainset;
if (!strcasecmp(data, "language"))
locked_string_field_set(chan, language, value);
else if (!strcasecmp(data, "musicclass"))
locked_string_field_set(chan, musicclass, value);
else if (!strcasecmp(data, "tonezone")) {
struct tone_zone *new_zone;
if (!(new_zone = ast_get_indication_zone(value))) {
ast_log(LOG_ERROR, "Unknown country code '%s' for tonezone. Check indications.conf for available country codes.\n", value);
ret = -1;
} else
chan->zone = new_zone;
} else if (!strcasecmp(data, "callgroup"))
chan->callgroup = ast_get_group(value);
else if (!strcasecmp(data, "txgain")) {
sscanf(value, "%hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "rxgain")) {
sscanf(value, "%hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_RXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "transfercapability")) {
unsigned short i;
for (i = 0; i < 0x20; i++) {
if (!strcasecmp(transfercapability_table[i], value) && strcmp(value, "UNK")) {
chan->transfercapability = i;
break;
}
}
} else if (!chan->tech->func_channel_write
|| chan->tech->func_channel_write(chan, function, data, value)) {
ast_log(LOG_WARNING, "Unknown or unavailable item requested: '%s'\n",
data);
ret = -1;
}
return ret;
}
static int func_channel_write(struct ast_channel *chan, const char *function, char *data, const char *value)
{
int res;
ast_chan_write_info_t write_info = {
.version = AST_CHAN_WRITE_INFO_T_VERSION,
.write_fn = func_channel_write_real,
.chan = chan,
.function = function,
.data = data,
.value = value,
};
res = func_channel_write_real(chan, function, data, value);
ast_channel_setoption(chan, AST_OPTION_CHANNEL_WRITE, &write_info, sizeof(write_info), 0);
return res;
}
static int func_channel_write(struct ast_channel *chan, const char *function, char *data, const char *value)
{
int res;
ast_chan_write_info_t write_info = {
.version = AST_CHAN_WRITE_INFO_T_VERSION,
.write_fn = func_channel_write_real,
.chan = chan,
.function = function,
.data = data,
.value = value,
};
if (!chan) {
ast_log(LOG_WARNING, "No channel was provided to %s function.\n", function);
return -1;
}
res = func_channel_write_real(chan, function, data, value);
ast_channel_setoption(chan, AST_OPTION_CHANNEL_WRITE, &write_info, sizeof(write_info), 0);
return res;
}
static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
int volfactor, const int fd, struct spy_dtmf_options *user_options,
const char *mygroup, const char *myenforced, const char *spec, const char *exten,
const char *context, const char *mailbox, const char *name_context)
{
char nameprefix[AST_NAME_STRLEN];
char peer_name[AST_NAME_STRLEN + 5];
char exitcontext[AST_MAX_CONTEXT] = "";
signed char zero_volume = 0;
int waitms;
int res;
char *ptr;
int num;
int num_spyed_upon = 1;
struct ast_channel_iterator *iter = NULL;
if (ast_test_flag(flags, OPTION_EXIT)) {
const char *c;
ast_channel_lock(chan);
if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT"))) {
ast_copy_string(exitcontext, c, sizeof(exitcontext));
} else if (!ast_strlen_zero(chan->macrocontext)) {
ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
} else {
ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
}
ast_channel_unlock(chan);
}
if (chan->_state != AST_STATE_UP)
ast_answer(chan);
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
waitms = 100;
for (;;) {
struct ast_autochan *autochan = NULL, *next_autochan = NULL;
struct ast_channel *prev = NULL;
if (!ast_test_flag(flags, OPTION_QUIET) && num_spyed_upon) {
res = ast_streamfile(chan, "beep", chan->language);
if (!res)
res = ast_waitstream(chan, "");
else if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
if (!ast_strlen_zero(exitcontext)) {
char tmp[2];
tmp[0] = res;
tmp[1] = '\0';
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
goto exit;
else
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
}
}
/* Set up the iterator we'll be using during this call */
if (!ast_strlen_zero(spec)) {
iter = ast_channel_iterator_by_name_new(spec, strlen(spec));
} else if (!ast_strlen_zero(exten)) {
iter = ast_channel_iterator_by_exten_new(exten, context);
} else {
iter = ast_channel_iterator_all_new();
}
if (!iter) {
return -1;
}
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
if (!ast_strlen_zero(exitcontext)) {
char tmp[2];
tmp[0] = res;
tmp[1] = '\0';
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
goto exit;
else
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
}
/* reset for the next loop around, unless overridden later */
waitms = 100;
num_spyed_upon = 0;
for (autochan = next_channel(iter, autochan, chan);
autochan;
prev = autochan->chan, ast_autochan_destroy(autochan),
autochan = next_autochan ? next_autochan :
next_channel(iter, autochan, chan), next_autochan = NULL) {
int igrp = !mygroup;
int ienf = !myenforced;
char *s;
if (autochan->chan == prev) {
ast_autochan_destroy(autochan);
break;
}
if (ast_check_hangup(chan)) {
ast_autochan_destroy(autochan);
break;
}
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(autochan->chan)) {
continue;
}
if (ast_check_hangup(autochan->chan) || ast_test_flag(autochan->chan, AST_FLAG_SPYING)) {
continue;
}
if (mygroup) {
int num_groups = 0;
int num_mygroups = 0;
char dup_group[512];
char dup_mygroup[512];
char *groups[NUM_SPYGROUPS];
char *mygroups[NUM_SPYGROUPS];
const char *group = NULL;
int x;
int y;
ast_copy_string(dup_mygroup, mygroup, sizeof(dup_mygroup));
num_mygroups = ast_app_separate_args(dup_mygroup, ':', mygroups,
ARRAY_LEN(mygroups));
/* Before dahdi scan was part of chanspy, it would use the "GROUP" variable
* rather than "SPYGROUP", this check is done to preserve expected behavior */
if (ast_test_flag(flags, OPTION_DAHDI_SCAN)) {
group = pbx_builtin_getvar_helper(autochan->chan, "GROUP");
} else {
group = pbx_builtin_getvar_helper(autochan->chan, "SPYGROUP");
}
if (!ast_strlen_zero(group)) {
ast_copy_string(dup_group, group, sizeof(dup_group));
num_groups = ast_app_separate_args(dup_group, ':', groups,
ARRAY_LEN(groups));
}
for (y = 0; y < num_mygroups; y++) {
for (x = 0; x < num_groups; x++) {
if (!strcmp(mygroups[y], groups[x])) {
igrp = 1;
break;
}
}
}
}
if (!igrp) {
continue;
}
if (myenforced) {
char ext[AST_CHANNEL_NAME + 3];
char buffer[512];
char *end;
snprintf(buffer, sizeof(buffer) - 1, ":%s:", myenforced);
ast_copy_string(ext + 1, autochan->chan->name, sizeof(ext) - 1);
if ((end = strchr(ext, '-'))) {
*end++ = ':';
*end = '\0';
}
ext[0] = ':';
if (strcasestr(buffer, ext)) {
ienf = 1;
}
}
if (!ienf) {
continue;
}
strcpy(peer_name, "spy-");
strncat(peer_name, autochan->chan->name, AST_NAME_STRLEN - 4 - 1);
ptr = strchr(peer_name, '/');
*ptr++ = '\0';
ptr = strsep(&ptr, "-");
for (s = peer_name; s < ptr; s++)
*s = tolower(*s);
if (!ast_test_flag(flags, OPTION_QUIET)) {
if (ast_test_flag(flags, OPTION_NAME)) {
const char *local_context = S_OR(name_context, "default");
const char *local_mailbox = S_OR(mailbox, ptr);
res = ast_app_sayname(chan, local_mailbox, local_context);
}
if (!ast_test_flag(flags, OPTION_NAME) || res < 0) {
if (!ast_test_flag(flags, OPTION_NOTECH)) {
if (ast_fileexists(peer_name, NULL, NULL) > 0) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res) {
res = ast_waitstream(chan, "");
}
if (res) {
ast_autochan_destroy(autochan);
break;
}
} else {
res = ast_say_character_str(chan, peer_name, "", chan->language);
}
}
if ((num = atoi(ptr)))
ast_say_digits(chan, atoi(ptr), "", chan->language);
}
}
res = channel_spy(chan, autochan, &volfactor, fd, user_options, flags, exitcontext);
num_spyed_upon++;
if (res == -1) {
ast_autochan_destroy(autochan);
goto exit;
} else if (res == -2) {
res = 0;
ast_autochan_destroy(autochan);
goto exit;
} else if (res > 1 && spec) {
struct ast_channel *next;
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((next = ast_channel_get_by_name_prefix(nameprefix, strlen(nameprefix)))) {
next_autochan = ast_autochan_setup(next);
next = ast_channel_unref(next);
} else {
/* stay on this channel, if it is still valid */
if (!ast_check_hangup(autochan->chan)) {
next_autochan = ast_autochan_setup(autochan->chan);
} else {
/* the channel is gone */
next_autochan = NULL;
}
}
} else if (res == 0 && ast_test_flag(flags, OPTION_EXITONHANGUP)) {
goto exit;
}
}
iter = ast_channel_iterator_destroy(iter);
if (res == -1 || ast_check_hangup(chan))
break;
if (ast_test_flag(flags, OPTION_STOP) && !next_autochan) {
break;
}
}
exit:
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
return res;
}
static int conf_run(struct ast_channel *chan, struct ast_conference *conf, int confflags)
{
struct ast_conference *prev=NULL, *cur;
struct ast_conf_user *user = malloc(sizeof(struct ast_conf_user));
int fd;
struct zt_confinfo ztc;
struct ast_frame *f;
struct ast_channel *c;
struct ast_frame fr;
int outfd;
int ms;
int nfds;
int res;
int flags;
int retryzap;
int origfd;
int musiconhold = 0;
int firstpass = 0;
int origquiet;
int ret = -1;
int x;
int menu_active = 0;
int using_pseudo = 0;
struct ast_app *app;
char *agifile;
char *agifiledefault = "conf-background.agi";
char meetmesecs[30] = "";
char exitcontext[AST_MAX_EXTENSION] = "";
int dtmf;
ZT_BUFFERINFO bi;
char __buf[CONF_SIZE + AST_FRIENDLY_OFFSET];
char *buf = __buf + AST_FRIENDLY_OFFSET;
if (!user) {
ast_log(LOG_ERROR, "Out of memory\n");
return(ret);
}
memset(user, 0, sizeof(struct ast_conf_user));
user->user_no = 0; /* User number 0 means starting up user! (dead - not in the list!) */
time(&user->jointime);
if (conf->locked) {
/* Sorry, but this confernce is locked! */
if (!ast_streamfile(chan, "conf-locked", chan->language))
ast_waitstream(chan, "");
goto outrun;
}
conf->users++;
if (confflags & CONFFLAG_MARKEDUSER)
conf->markedusers++;
ast_mutex_lock(&conflock);
if (conf->firstuser == NULL) {
/* Fill the first new User struct */
user->user_no = 1;
user->nextuser = NULL;
user->prevuser = NULL;
conf->firstuser = user;
conf->lastuser = user;
} else {
/* Fill the new user struct */
user->user_no = conf->lastuser->user_no + 1;
user->prevuser = conf->lastuser;
user->nextuser = NULL;
if (conf->lastuser->nextuser != NULL) {
ast_log(LOG_WARNING, "Error in User Management!\n");
ast_mutex_unlock(&conflock);
goto outrun;
} else {
conf->lastuser->nextuser = user;
conf->lastuser = user;
}
}
user->chan = chan;
user->userflags = confflags;
user->adminflags = 0;
ast_mutex_unlock(&conflock);
origquiet = confflags & CONFFLAG_QUIET;
if (confflags & CONFFLAG_EXIT_CONTEXT) {
if ((agifile = pbx_builtin_getvar_helper(chan, "MEETME_EXIT_CONTEXT")))
strncpy(exitcontext, agifile, sizeof(exitcontext) - 1);
else if (!ast_strlen_zero(chan->macrocontext))
strncpy(exitcontext, chan->macrocontext, sizeof(exitcontext) - 1);
else
strncpy(exitcontext, chan->context, sizeof(exitcontext) - 1);
}
while((confflags & CONFFLAG_WAITMARKED) && (conf->markedusers == 0)) {
confflags &= ~CONFFLAG_QUIET;
confflags |= origquiet;
/* XXX Announce that we're waiting on the conference lead to join */
if (!(confflags & CONFFLAG_QUIET)) {
res = ast_streamfile(chan, "vm-dialout", chan->language);
if (!res)
res = ast_waitstream(chan, "");
} else
res = 0;
/* If we're waiting with hold music, set to silent mode */
if (!res) {
confflags |= CONFFLAG_QUIET;
ast_moh_start(chan, NULL);
res = ast_safe_sleep_conditional(chan, 60000, confnonzero, conf);
ast_moh_stop(chan);
}
if (res < 0) {
ast_log(LOG_DEBUG, "Got hangup on '%s' already\n", chan->name);
goto outrun;
}
}
if (!(confflags & CONFFLAG_QUIET) && conf->users == 1) {
if (!ast_streamfile(chan, "conf-onlyperson", chan->language)) {
if (ast_waitstream(chan, "") < 0)
goto outrun;
} else
goto outrun;
}
/* Set it into linear mode (write) */
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_WARNING, "Unable to set '%s' to write linear mode\n", chan->name);
goto outrun;
}
/* Set it into linear mode (read) */
if (ast_set_read_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_WARNING, "Unable to set '%s' to read linear mode\n", chan->name);
goto outrun;
}
ast_indicate(chan, -1);
retryzap = strcasecmp(chan->type, "Zap");
zapretry:
origfd = chan->fds[0];
if (retryzap) {
fd = open("/dev/zap/pseudo", O_RDWR);
if (fd < 0) {
ast_log(LOG_WARNING, "Unable to open pseudo channel: %s\n", strerror(errno));
goto outrun;
}
using_pseudo = 1;
/* Make non-blocking */
flags = fcntl(fd, F_GETFL);
if (flags < 0) {
ast_log(LOG_WARNING, "Unable to get flags: %s\n", strerror(errno));
close(fd);
goto outrun;
}
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK)) {
ast_log(LOG_WARNING, "Unable to set flags: %s\n", strerror(errno));
close(fd);
goto outrun;
}
/* Setup buffering information */
memset(&bi, 0, sizeof(bi));
bi.bufsize = CONF_SIZE/2;
bi.txbufpolicy = ZT_POLICY_IMMEDIATE;
bi.rxbufpolicy = ZT_POLICY_IMMEDIATE;
bi.numbufs = 4;
if (ioctl(fd, ZT_SET_BUFINFO, &bi)) {
ast_log(LOG_WARNING, "Unable to set buffering information: %s\n", strerror(errno));
close(fd);
goto outrun;
}
x = 1;
if (ioctl(fd, ZT_SETLINEAR, &x)) {
ast_log(LOG_WARNING, "Unable to set linear mode: %s\n", strerror(errno));
close(fd);
goto outrun;
}
nfds = 1;
} else {
/* XXX Make sure we're not running on a pseudo channel XXX */
fd = chan->fds[0];
nfds = 0;
}
memset(&ztc, 0, sizeof(ztc));
/* Check to see if we're in a conference... */
ztc.chan = 0;
if (ioctl(fd, ZT_GETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error getting conference\n");
close(fd);
goto outrun;
}
if (ztc.confmode) {
/* Whoa, already in a conference... Retry... */
if (!retryzap) {
ast_log(LOG_DEBUG, "Zap channel is in a conference already, retrying with pseudo\n");
retryzap = 1;
goto zapretry;
}
}
memset(&ztc, 0, sizeof(ztc));
/* Add us to the conference */
ztc.chan = 0;
ztc.confno = conf->zapconf;
if (confflags & CONFFLAG_MONITOR)
ztc.confmode = ZT_CONF_CONFMON | ZT_CONF_LISTENER;
else if (confflags & CONFFLAG_TALKER)
ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER;
else
ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference\n");
close(fd);
goto outrun;
}
ast_log(LOG_DEBUG, "Placed channel %s in ZAP conf %d\n", chan->name, conf->zapconf);
manager_event(EVENT_FLAG_CALL, "MeetmeJoin",
"Channel: %s\r\n"
"Uniqueid: %s\r\n"
"Meetme: %s\r\n"
"Usernum: %i\r\n",
chan->name, chan->uniqueid, conf->confno, user->user_no);
if (!firstpass && !(confflags & CONFFLAG_MONITOR) && !(confflags & CONFFLAG_ADMIN)) {
firstpass = 1;
if (!(confflags & CONFFLAG_QUIET))
conf_play(conf, ENTER);
}
if (confflags & CONFFLAG_AGI) {
/* Get name of AGI file to run from $(MEETME_AGI_BACKGROUND)
or use default filename of conf-background.agi */
agifile = pbx_builtin_getvar_helper(chan,"MEETME_AGI_BACKGROUND");
if (!agifile)
agifile = agifiledefault;
if (!strcasecmp(chan->type,"Zap")) {
/* Set CONFMUTE mode on Zap channel to mute DTMF tones */
x = 1;
ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
}
/* Find a pointer to the agi app and execute the script */
app = pbx_findapp("agi");
if (app) {
ret = pbx_exec(chan, app, agifile, 1);
} else {
ast_log(LOG_WARNING, "Could not find application (agi)\n");
ret = -2;
}
if (!strcasecmp(chan->type,"Zap")) {
/* Remove CONFMUTE mode on Zap channel */
x = 0;
ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
}
} else {
if (!strcasecmp(chan->type,"Zap") && (confflags & CONFFLAG_STARMENU)) {
/* Set CONFMUTE mode on Zap channel to mute DTMF tones when the menu is enabled */
x = 1;
ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
}
for(;;) {
outfd = -1;
ms = -1;
c = ast_waitfor_nandfds(&chan, 1, &fd, nfds, NULL, &outfd, &ms);
/* Update the struct with the actual confflags */
user->userflags = confflags;
/* trying to add moh for single person conf */
if (confflags & CONFFLAG_MOH) {
if (conf->users == 1) {
if (musiconhold == 0) {
ast_moh_start(chan, NULL);
musiconhold = 1;
}
} else {
if (musiconhold) {
ast_moh_stop(chan);
musiconhold = 0;
}
}
}
/* Leave if the last marked user left */
if (conf->markedusers == 0 && confflags & CONFFLAG_MARKEDEXIT) {
ret = -1;
break;
}
/* Check if the admin changed my modes */
if (user->adminflags) {
/* Set the new modes */
if ((user->adminflags & ADMINFLAG_MUTED) && (ztc.confmode & ZT_CONF_TALKER)) {
ztc.confmode ^= ZT_CONF_TALKER;
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
ret = -1;
break;
}
}
if (!(user->adminflags & ADMINFLAG_MUTED) && !(confflags & CONFFLAG_MONITOR) && !(ztc.confmode & ZT_CONF_TALKER)) {
ztc.confmode |= ZT_CONF_TALKER;
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
ret = -1;
break;
}
}
if (user->adminflags & ADMINFLAG_KICKME) {
//You have been kicked.
if (!ast_streamfile(chan, "conf-kicked", chan->language))
ast_waitstream(chan, "");
ret = 0;
break;
}
} else if (!(confflags & CONFFLAG_MONITOR) && !(ztc.confmode & ZT_CONF_TALKER)) {
ztc.confmode |= ZT_CONF_TALKER;
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
ret = -1;
break;
}
}
if (c) {
if (c->fds[0] != origfd) {
if (using_pseudo) {
/* Kill old pseudo */
close(fd);
}
ast_log(LOG_DEBUG, "Ooh, something swapped out under us, starting over\n");
retryzap = 0;
using_pseudo = 0;
goto zapretry;
}
f = ast_read(c);
if (!f)
break;
if ((f->frametype == AST_FRAME_DTMF) && (confflags & CONFFLAG_EXIT_CONTEXT)) {
char tmp[2];
tmp[0] = f->subclass;
tmp[1] = '\0';
if (ast_exists_extension(chan, exitcontext, tmp, 1, chan->callerid)) {
strncpy(chan->context, exitcontext, sizeof(chan->context) - 1);
strncpy(chan->exten, tmp, sizeof(chan->exten) - 1);
chan->priority = 0;
ret = 0;
break;
}
} else if ((f->frametype == AST_FRAME_DTMF) && (f->subclass == '#') && (confflags & CONFFLAG_POUNDEXIT)) {
ret = 0;
break;
} else if (((f->frametype == AST_FRAME_DTMF) && (f->subclass == '*') && (confflags & CONFFLAG_STARMENU)) || ((f->frametype == AST_FRAME_DTMF) && menu_active)) {
if (musiconhold) {
ast_moh_stop(chan);
}
if ((confflags & CONFFLAG_ADMIN)) {
/* Admin menu */
if (!menu_active) {
menu_active = 1;
/* Record this sound! */
if (!ast_streamfile(chan, "conf-adminmenu", chan->language))
dtmf = ast_waitstream(chan, AST_DIGIT_ANY);
else
dtmf = 0;
} else
dtmf = f->subclass;
if (dtmf) {
switch(dtmf) {
case '1': /* Un/Mute */
menu_active = 0;
if (ztc.confmode & ZT_CONF_TALKER) {
ztc.confmode = ZT_CONF_CONF | ZT_CONF_LISTENER;
confflags |= CONFFLAG_MONITOR ^ CONFFLAG_TALKER;
} else {
ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
confflags ^= CONFFLAG_MONITOR | CONFFLAG_TALKER;
}
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
ret = -1;
break;
}
if (ztc.confmode & ZT_CONF_TALKER) {
if (!ast_streamfile(chan, "conf-unmuted", chan->language))
ast_waitstream(chan, "");
} else {
if (!ast_streamfile(chan, "conf-muted", chan->language))
ast_waitstream(chan, "");
}
break;
case '2': /* Un/Lock the Conference */
menu_active = 0;
if (conf->locked) {
conf->locked = 0;
if (!ast_streamfile(chan, "conf-unlockednow", chan->language))
ast_waitstream(chan, "");
} else {
conf->locked = 1;
if (!ast_streamfile(chan, "conf-lockednow", chan->language))
ast_waitstream(chan, "");
}
break;
default:
menu_active = 0;
/* Play an error message! */
if (!ast_streamfile(chan, "conf-errormenu", chan->language))
ast_waitstream(chan, "");
break;
}
}
} else {
/* User menu */
if (!menu_active) {
menu_active = 1;
/* Record this sound! */
if (!ast_streamfile(chan, "conf-usermenu", chan->language))
dtmf = ast_waitstream(chan, AST_DIGIT_ANY);
else
dtmf = 0;
} else
dtmf = f->subclass;
if (dtmf) {
switch(dtmf) {
case '1': /* Un/Mute */
menu_active = 0;
if (ztc.confmode & ZT_CONF_TALKER) {
ztc.confmode = ZT_CONF_CONF | ZT_CONF_LISTENER;
confflags |= CONFFLAG_MONITOR ^ CONFFLAG_TALKER;
} else if (!(user->adminflags & ADMINFLAG_MUTED)) {
ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
confflags ^= CONFFLAG_MONITOR | CONFFLAG_TALKER;
}
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
ret = -1;
break;
}
if (ztc.confmode & ZT_CONF_TALKER) {
if (!ast_streamfile(chan, "conf-unmuted", chan->language))
ast_waitstream(chan, "");
} else {
if (!ast_streamfile(chan, "conf-muted", chan->language))
ast_waitstream(chan, "");
}
break;
default:
menu_active = 0;
/* Play an error message! */
if (!ast_streamfile(chan, "conf-errormenu", chan->language))
ast_waitstream(chan, "");
break;
}
}
}
if (musiconhold) {
ast_moh_start(chan, NULL);
}
} else if (using_pseudo) {
if (f->frametype == AST_FRAME_VOICE) {
if (f->subclass == AST_FORMAT_SLINEAR) {
/* Carefully write */
careful_write(fd, f->data, f->datalen);
} else
ast_log(LOG_WARNING, "Huh? Got a non-linear (%d) frame in the conference\n", f->subclass);
}
}
ast_frfree(f);
} else if (outfd > -1) {
res = read(outfd, buf, CONF_SIZE);
if (res > 0) {
memset(&fr, 0, sizeof(fr));
fr.frametype = AST_FRAME_VOICE;
fr.subclass = AST_FORMAT_SLINEAR;
fr.datalen = res;
fr.samples = res/2;
fr.data = buf;
fr.offset = AST_FRIENDLY_OFFSET;
if (ast_write(chan, &fr) < 0) {
ast_log(LOG_WARNING, "Unable to write frame to channel: %s\n", strerror(errno));
/* break; */
}
} else
ast_log(LOG_WARNING, "Failed to read frame: %s\n", strerror(errno));
}
}
}
if (using_pseudo)
close(fd);
else {
/* Take out of conference */
/* Add us to the conference */
ztc.chan = 0;
ztc.confno = 0;
ztc.confmode = 0;
if (ioctl(fd, ZT_SETCONF, &ztc)) {
ast_log(LOG_WARNING, "Error setting conference\n");
}
}
if (!(confflags & CONFFLAG_QUIET) && !(confflags & CONFFLAG_MONITOR) && !(confflags & CONFFLAG_ADMIN))
conf_play(conf, LEAVE);
outrun:
ast_mutex_lock(&conflock);
if (user->user_no) { /* Only cleanup users who really joined! */
manager_event(EVENT_FLAG_CALL, "MeetmeLeave",
"Channel: %s\r\n"
"Uniqueid: %s\r\n"
"Meetme: %s\r\n"
"Usernum: %i\r\n",
chan->name, chan->uniqueid, conf->confno, user->user_no);
prev = NULL;
conf->users--;
if (confflags & CONFFLAG_MARKEDUSER)
conf->markedusers--;
cur = confs;
if (!conf->users) {
/* No more users -- close this one out */
while(cur) {
if (cur == conf) {
if (prev)
prev->next = conf->next;
else
confs = conf->next;
break;
}
prev = cur;
cur = cur->next;
}
if (!cur)
ast_log(LOG_WARNING, "Conference not found\n");
if (conf->chan)
ast_hangup(conf->chan);
else
close(conf->fd);
free(conf);
} else {
/* Remove the user struct */
if (user == conf->firstuser) {
if (user->nextuser) {
/* There is another entry */
user->nextuser->prevuser = NULL;
} else {
/* We are the only entry */
conf->lastuser = NULL;
}
/* In either case */
conf->firstuser = user->nextuser;
} else if (user == conf->lastuser){
if (user->prevuser)
user->prevuser->nextuser = NULL;
else
ast_log(LOG_ERROR, "Bad bad bad! We're the last, not the first, but nobody before us??\n");
conf->lastuser = user->prevuser;
} else {
if (user->nextuser)
user->nextuser->prevuser = user->prevuser;
else
ast_log(LOG_ERROR, "Bad! Bad! Bad! user->nextuser is NULL but we're not the end!\n");
if (user->prevuser)
user->prevuser->nextuser = user->nextuser;
else
ast_log(LOG_ERROR, "Bad! Bad! Bad! user->prevuser is NULL but we're not the beginning!\n");
}
}
/* Return the number of seconds the user was in the conf */
snprintf(meetmesecs, sizeof(meetmesecs), "%i", (int) (time(NULL) - user->jointime));
pbx_builtin_setvar_helper(chan, "MEETMESECS", meetmesecs);
}
free(user);
ast_mutex_unlock(&conflock);
return ret;
}
static int func_channel_write_real(struct ast_channel *chan, const char *function,
char *data, const char *value)
{
int ret = 0;
signed char gainset;
if (!strcasecmp(data, "language"))
locked_string_field_set(chan, language, value);
else if (!strcasecmp(data, "parkinglot"))
locked_string_field_set(chan, parkinglot, value);
else if (!strcasecmp(data, "musicclass"))
locked_string_field_set(chan, musicclass, value);
else if (!strcasecmp(data, "accountcode"))
locked_string_field_set(chan, accountcode, value);
else if (!strcasecmp(data, "userfield"))
locked_string_field_set(chan, userfield, value);
else if (!strcasecmp(data, "after_bridge_goto")) {
if (ast_strlen_zero(value)) {
ast_bridge_discard_after_goto(chan);
} else {
ast_bridge_set_after_go_on(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), value);
}
} else if (!strcasecmp(data, "amaflags")) {
ast_channel_lock(chan);
if (isdigit(*value)) {
int amaflags;
sscanf(value, "%30d", &amaflags);
ast_channel_amaflags_set(chan, amaflags);
} else if (!strcasecmp(value,"OMIT")){
ast_channel_amaflags_set(chan, 1);
} else if (!strcasecmp(value,"BILLING")){
ast_channel_amaflags_set(chan, 2);
} else if (!strcasecmp(value,"DOCUMENTATION")){
ast_channel_amaflags_set(chan, 3);
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "peeraccount"))
locked_string_field_set(chan, peeraccount, value);
else if (!strcasecmp(data, "hangupsource"))
/* XXX - should we be forcing this here? */
ast_set_hangupsource(chan, value, 0);
#ifdef CHANNEL_TRACE
else if (!strcasecmp(data, "trace")) {
ast_channel_lock(chan);
if (ast_true(value))
ret = ast_channel_trace_enable(chan);
else if (ast_false(value))
ret = ast_channel_trace_disable(chan);
else {
ret = -1;
ast_log(LOG_WARNING, "Invalid value for CHANNEL(trace).\n");
}
ast_channel_unlock(chan);
}
#endif
else if (!strcasecmp(data, "tonezone")) {
struct ast_tone_zone *new_zone;
if (!(new_zone = ast_get_indication_zone(value))) {
ast_log(LOG_ERROR, "Unknown country code '%s' for tonezone. Check indications.conf for available country codes.\n", value);
ret = -1;
} else {
ast_channel_lock(chan);
if (ast_channel_zone(chan)) {
ast_channel_zone_set(chan, ast_tone_zone_unref(ast_channel_zone(chan)));
}
ast_channel_zone_set(chan, ast_tone_zone_ref(new_zone));
ast_channel_unlock(chan);
new_zone = ast_tone_zone_unref(new_zone);
}
} else if (!strcasecmp(data, "dtmf_features")) {
ret = ast_bridge_features_ds_set_string(chan, value);
} else if (!strcasecmp(data, "callgroup")) {
ast_channel_lock(chan);
ast_channel_callgroup_set(chan, ast_get_group(value));
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "pickupgroup")) {
ast_channel_lock(chan);
ast_channel_pickupgroup_set(chan, ast_get_group(value));
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "namedcallgroup")) {
struct ast_namedgroups *groups = ast_get_namedgroups(value);
ast_channel_lock(chan);
ast_channel_named_callgroups_set(chan, groups);
ast_channel_unlock(chan);
ast_unref_namedgroups(groups);
} else if (!strcasecmp(data, "namedpickupgroup")) {
struct ast_namedgroups *groups = ast_get_namedgroups(value);
ast_channel_lock(chan);
ast_channel_named_pickupgroups_set(chan, groups);
ast_channel_unlock(chan);
ast_unref_namedgroups(groups);
} else if (!strcasecmp(data, "txgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "rxgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_RXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "transfercapability")) {
unsigned short i;
ast_channel_lock(chan);
for (i = 0; i < 0x20; i++) {
if (!strcasecmp(transfercapability_table[i], value) && strcmp(value, "UNK")) {
ast_channel_transfercapability_set(chan, i);
break;
}
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "hangup_handler_pop")) {
/* Pop one hangup handler before pushing the new handler. */
ast_pbx_hangup_handler_pop(chan);
ast_pbx_hangup_handler_push(chan, value);
} else if (!strcasecmp(data, "hangup_handler_push")) {
ast_pbx_hangup_handler_push(chan, value);
} else if (!strcasecmp(data, "hangup_handler_wipe")) {
/* Pop all hangup handlers before pushing the new handler. */
while (ast_pbx_hangup_handler_pop(chan)) {
}
ast_pbx_hangup_handler_push(chan, value);
} else if (!strncasecmp(data, "secure_bridge_", 14)) {
struct ast_datastore *ds;
struct ast_secure_call_store *store;
if (!chan || !value) {
return -1;
}
ast_channel_lock(chan);
if (!(ds = ast_channel_datastore_find(chan, &secure_call_info, NULL))) {
if (!(ds = ast_datastore_alloc(&secure_call_info, NULL))) {
ast_channel_unlock(chan);
return -1;
}
if (!(store = ast_calloc(1, sizeof(*store)))) {
ast_channel_unlock(chan);
ast_free(ds);
return -1;
}
ds->data = store;
ast_channel_datastore_add(chan, ds);
} else {
store = ds->data;
}
if (!strcasecmp(data, "secure_bridge_signaling")) {
store->signaling = ast_true(value) ? 1 : 0;
} else if (!strcasecmp(data, "secure_bridge_media")) {
store->media = ast_true(value) ? 1 : 0;
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "max_forwards")) {
int max_forwards;
if (sscanf(value, "%d", &max_forwards) != 1) {
ast_log(LOG_WARNING, "Unable to set max forwards to '%s'\n", value);
ret = -1;
} else {
ast_channel_lock(chan);
ret = ast_max_forwards_set(chan, max_forwards);
ast_channel_unlock(chan);
}
} else if (!ast_channel_tech(chan)->func_channel_write
|| ast_channel_tech(chan)->func_channel_write(chan, function, data, value)) {
ast_log(LOG_WARNING, "Unknown or unavailable item requested: '%s'\n",
data);
ret = -1;
}
return ret;
}
static int func_channel_write_real(struct ast_channel *chan, const char *function,
char *data, const char *value)
{
int ret = 0;
signed char gainset;
if (!strcasecmp(data, "language"))
locked_string_field_set(chan, language, value);
else if (!strcasecmp(data, "parkinglot"))
locked_string_field_set(chan, parkinglot, value);
else if (!strcasecmp(data, "musicclass"))
locked_string_field_set(chan, musicclass, value);
else if (!strcasecmp(data, "accountcode"))
locked_string_field_set(chan, accountcode, value);
else if (!strcasecmp(data, "userfield"))
locked_string_field_set(chan, userfield, value);
else if (!strcasecmp(data, "amaflags")) {
ast_channel_lock(chan);
if(isdigit(*value)) {
sscanf(value, "%30d", &chan->amaflags);
} else if (!strcasecmp(value,"OMIT")) {
chan->amaflags = 1;
} else if (!strcasecmp(value,"BILLING")) {
chan->amaflags = 2;
} else if (!strcasecmp(value,"DOCUMENTATION")) {
chan->amaflags = 3;
}
ast_channel_unlock(chan);
} else if (!strcasecmp(data, "peeraccount"))
locked_string_field_set(chan, peeraccount, value);
else if (!strcasecmp(data, "hangupsource"))
/* XXX - should we be forcing this here? */
ast_set_hangupsource(chan, value, 0);
#ifdef CHANNEL_TRACE
else if (!strcasecmp(data, "trace")) {
ast_channel_lock(chan);
if (ast_true(value))
ret = ast_channel_trace_enable(chan);
else if (ast_false(value))
ret = ast_channel_trace_disable(chan);
else {
ret = -1;
ast_log(LOG_WARNING, "Invalid value for CHANNEL(trace).");
}
ast_channel_unlock(chan);
}
#endif
else if (!strcasecmp(data, "tonezone")) {
struct ast_tone_zone *new_zone;
if (!(new_zone = ast_get_indication_zone(value))) {
ast_log(LOG_ERROR, "Unknown country code '%s' for tonezone. Check indications.conf for available country codes.\n", value);
ret = -1;
} else {
ast_channel_lock(chan);
if (chan->zone) {
chan->zone = ast_tone_zone_unref(chan->zone);
}
chan->zone = ast_tone_zone_ref(new_zone);
ast_channel_unlock(chan);
new_zone = ast_tone_zone_unref(new_zone);
}
} else if (!strcasecmp(data, "callgroup")) {
chan->callgroup = ast_get_group(value);
} else if (!strcasecmp(data, "pickupgroup")) {
chan->pickupgroup = ast_get_group(value);
} else if (!strcasecmp(data, "txgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "rxgain")) {
sscanf(value, "%4hhd", &gainset);
ast_channel_setoption(chan, AST_OPTION_RXGAIN, &gainset, sizeof(gainset), 0);
} else if (!strcasecmp(data, "transfercapability")) {
unsigned short i;
for (i = 0; i < 0x20; i++) {
if (!strcasecmp(transfercapability_table[i], value) && strcmp(value, "UNK")) {
chan->transfercapability = i;
break;
}
}
} else if (!strncasecmp(data, "secure_bridge_", 14)) {
struct ast_datastore *ds;
struct ast_secure_call_store *store;
if (!chan || !value) {
return -1;
}
ast_channel_lock(chan);
if (!(ds = ast_channel_datastore_find(chan, &secure_call_info, NULL))) {
if (!(ds = ast_datastore_alloc(&secure_call_info, NULL))) {
ast_channel_unlock(chan);
return -1;
}
if (!(store = ast_calloc(1, sizeof(*store)))) {
ast_channel_unlock(chan);
ast_free(ds);
return -1;
}
ds->data = store;
ast_channel_datastore_add(chan, ds);
} else {
store = ds->data;
}
ast_channel_unlock(chan);
if (!strcasecmp(data, "secure_bridge_signaling")) {
store->signaling = ast_true(value) ? 1 : 0;
} else if (!strcasecmp(data, "secure_bridge_media")) {
store->media = ast_true(value) ? 1 : 0;
}
} else if (!chan->tech->func_channel_write
|| chan->tech->func_channel_write(chan, function, data, value)) {
ast_log(LOG_WARNING, "Unknown or unavailable item requested: '%s'\n",
data);
ret = -1;
}
return ret;
}
static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
int volfactor, const int fd, const char *mygroup, const char *myenforced,
const char *spec, const char *exten, const char *context)
{
char nameprefix[AST_NAME_STRLEN];
char peer_name[AST_NAME_STRLEN + 5];
char exitcontext[AST_MAX_CONTEXT] = "";
signed char zero_volume = 0;
int waitms;
int res;
char *ptr;
int num;
int num_spyed_upon = 1;
struct chanspy_ds chanspy_ds;
if (ast_test_flag(flags, OPTION_EXIT)) {
const char *c;
if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT")))
ast_copy_string(exitcontext, c, sizeof(exitcontext));
else if (!ast_strlen_zero(chan->macrocontext))
ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
else
ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
}
ast_mutex_init(&chanspy_ds.lock);
snprintf(chanspy_ds.unique_id, sizeof(chanspy_ds.unique_id), "%d", ast_atomic_fetchadd_int(&next_unique_id_to_use, +1));
if (chan->_state != AST_STATE_UP)
ast_answer(chan);
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
waitms = 100;
for (;;) {
struct chanspy_ds *peer_chanspy_ds = NULL, *next_chanspy_ds = NULL;
struct ast_channel *prev = NULL, *peer = NULL;
if (!ast_test_flag(flags, OPTION_QUIET) && num_spyed_upon) {
res = ast_streamfile(chan, "beep", chan->language);
if (!res)
res = ast_waitstream(chan, "");
else if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
if (!ast_strlen_zero(exitcontext)) {
char tmp[2];
tmp[0] = res;
tmp[1] = '\0';
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
goto exit;
else
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
}
}
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
if (!ast_strlen_zero(exitcontext)) {
char tmp[2];
tmp[0] = res;
tmp[1] = '\0';
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
goto exit;
else
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
}
/* reset for the next loop around, unless overridden later */
waitms = 100;
num_spyed_upon = 0;
for (peer_chanspy_ds = next_channel(chan, prev, spec, exten, context, &chanspy_ds);
peer_chanspy_ds;
chanspy_ds_free(peer_chanspy_ds), prev = peer,
peer_chanspy_ds = next_chanspy_ds ? next_chanspy_ds :
next_channel(chan, prev, spec, exten, context, &chanspy_ds), next_chanspy_ds = NULL) {
const char *group;
int igrp = !mygroup;
char *groups[25];
int num_groups = 0;
char dup_group[512];
int x;
char *s;
char *buffer;
char *end;
char *ext;
char *form_enforced;
int ienf = !myenforced;
peer = peer_chanspy_ds->chan;
ast_mutex_unlock(&peer_chanspy_ds->lock);
if (peer == prev) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_check_hangup(chan)) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(peer)) {
ast_channel_unlock(peer);
continue;
}
if (ast_check_hangup(peer) || ast_test_flag(peer, AST_FLAG_SPYING)) {
ast_channel_unlock(peer);
continue;
}
if (mygroup) {
if ((group = pbx_builtin_getvar_helper(peer, "SPYGROUP"))) {
ast_copy_string(dup_group, group, sizeof(dup_group));
num_groups = ast_app_separate_args(dup_group, ':', groups,
ARRAY_LEN(groups));
}
for (x = 0; x < num_groups; x++) {
if (!strcmp(mygroup, groups[x])) {
igrp = 1;
break;
}
}
}
if (!igrp) {
ast_channel_unlock(peer);
continue;
}
if (myenforced) {
/* We don't need to allocate more space than just the
length of (peer->name) for ext as we will cut the
channel name's ending before copying into ext */
ext = alloca(strlen(peer->name));
form_enforced = alloca(strlen(myenforced) + 3);
strcpy(form_enforced, ":");
strcat(form_enforced, myenforced);
strcat(form_enforced, ":");
buffer = ast_strdupa(peer->name);
if ((end = strchr(buffer, '-'))) {
*end++ = ':';
*end = '\0';
}
strcpy(ext, ":");
strcat(ext, buffer);
if (strcasestr(form_enforced, ext))
ienf = 1;
}
if (!ienf)
continue;
strcpy(peer_name, "spy-");
strncat(peer_name, peer->name, AST_NAME_STRLEN - 4 - 1);
ptr = strchr(peer_name, '/');
*ptr++ = '\0';
for (s = peer_name; s < ptr; s++)
*s = tolower(*s);
/* We have to unlock the peer channel here to avoid a deadlock.
* So, when we need to dereference it again, we have to lock the
* datastore and get the pointer from there to see if the channel
* is still valid. */
ast_channel_unlock(peer);
if (!ast_test_flag(flags, OPTION_QUIET)) {
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res) {
chanspy_ds_free(peer_chanspy_ds);
break;
}
} else
res = ast_say_character_str(chan, peer_name, "", chan->language);
if ((num = atoi(ptr)))
ast_say_digits(chan, atoi(ptr), "", chan->language);
}
res = channel_spy(chan, peer_chanspy_ds, &volfactor, fd, flags, exitcontext);
num_spyed_upon++;
if (res == -1) {
chanspy_ds_free(peer_chanspy_ds);
goto exit;
} else if (res == -2) {
res = 0;
chanspy_ds_free(peer_chanspy_ds);
goto exit;
} else if (res > 1 && spec) {
struct ast_channel *next;
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((next = ast_get_channel_by_name_prefix_locked(nameprefix, strlen(nameprefix)))) {
peer_chanspy_ds = chanspy_ds_free(peer_chanspy_ds);
next_chanspy_ds = setup_chanspy_ds(next, &chanspy_ds);
} else {
/* stay on this channel, if it is still valid */
ast_mutex_lock(&peer_chanspy_ds->lock);
if (peer_chanspy_ds->chan) {
ast_channel_lock(peer_chanspy_ds->chan);
next_chanspy_ds = peer_chanspy_ds;
peer_chanspy_ds = NULL;
} else {
/* the channel is gone */
ast_mutex_unlock(&peer_chanspy_ds->lock);
next_chanspy_ds = NULL;
}
}
peer = NULL;
}
}
if (res == -1 || ast_check_hangup(chan))
break;
}
exit:
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
ast_mutex_lock(&chanspy_ds.lock);
ast_mutex_unlock(&chanspy_ds.lock);
ast_mutex_destroy(&chanspy_ds.lock);
return res;
}
static int chanspy_exec(struct ast_channel *chan, void *data)
{
struct localuser *u;
struct ast_channel *peer=NULL, *prev=NULL;
char name[AST_NAME_STRLEN],
peer_name[AST_NAME_STRLEN + 5],
*args,
*ptr = NULL,
*options = NULL,
*spec = NULL,
*argv[5],
*mygroup = NULL,
*recbase = NULL;
int res = -1,
volfactor = 0,
silent = 0,
argc = 0,
bronly = 0,
chosen = 0,
count=0,
waitms = 100,
num = 0,
oldrf = 0,
oldwf = 0,
fd = 0;
struct ast_flags flags;
signed char zero_volume = 0;
if (!(args = ast_strdupa((char *)data))) {
ast_log(LOG_ERROR, "Out of memory!\n");
return -1;
}
LOCAL_USER_ADD(u);
oldrf = chan->readformat;
oldwf = chan->writeformat;
if (ast_set_read_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_ERROR, "Could Not Set Read Format.\n");
LOCAL_USER_REMOVE(u);
return -1;
}
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
LOCAL_USER_REMOVE(u);
return -1;
}
ast_answer(chan);
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
if ((argc = ast_app_separate_args(args, '|', argv, sizeof(argv) / sizeof(argv[0])))) {
spec = argv[0];
if ( argc > 1) {
options = argv[1];
}
if (ast_strlen_zero(spec) || !strcmp(spec, "all")) {
spec = NULL;
}
}
if (options) {
char *opts[OPT_ARG_ARRAY_SIZE];
ast_app_parse_options(chanspy_opts, &flags, opts, options);
if (ast_test_flag(&flags, OPTION_GROUP)) {
mygroup = opts[OPT_ARG_GROUP];
}
if (ast_test_flag(&flags, OPTION_RECORD)) {
if (!(recbase = opts[OPT_ARG_RECORD])) {
recbase = "chanspy";
}
}
silent = ast_test_flag(&flags, OPTION_QUIET);
bronly = ast_test_flag(&flags, OPTION_BRIDGED);
if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
int vol;
if ((sscanf(opts[OPT_ARG_VOLUME], "%d", &vol) != 1) || (vol > 4) || (vol < -4))
ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
else
volfactor = vol;
}
}
else
ast_clear_flag(&flags, AST_FLAGS_ALL);
if (recbase) {
char filename[512];
snprintf(filename,sizeof(filename),"%s/%s.%d.raw",ast_config_AST_MONITOR_DIR, recbase, (int)time(NULL));
if ((fd = open(filename, O_CREAT | O_WRONLY, O_TRUNC, 0644)) <= 0) {
ast_log(LOG_WARNING, "Cannot open %s for recording\n", filename);
fd = 0;
}
}
for(;;) {
if (!silent) {
res = ast_streamfile(chan, "beep", chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
}
count = 0;
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
peer = local_channel_walk(NULL);
prev=NULL;
while(peer) {
if (peer != chan) {
char *group = NULL;
int igrp = 1;
if (peer == prev && !chosen) {
break;
}
chosen = 0;
group = pbx_builtin_getvar_helper(peer, "SPYGROUP");
if (mygroup) {
if (!group || strcmp(mygroup, group)) {
igrp = 0;
}
}
if (igrp && (!spec || ((strlen(spec) <= strlen(peer->name) &&
!strncasecmp(peer->name, spec, strlen(spec)))))) {
if (peer && (!bronly || ast_bridged_channel(peer)) &&
!ast_check_hangup(peer) && !ast_test_flag(peer, AST_FLAG_SPYING)) {
int x = 0;
strncpy(peer_name, "spy-", 5);
strncpy(peer_name + strlen(peer_name), peer->name, AST_NAME_STRLEN);
ptr = strchr(peer_name, '/');
*ptr = '\0';
ptr++;
for (x = 0 ; x < strlen(peer_name) ; x++) {
if (peer_name[x] == '/') {
break;
}
peer_name[x] = tolower(peer_name[x]);
}
if (!silent) {
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res)
break;
} else
res = ast_say_character_str(chan, peer_name, "", chan->language);
if ((num=atoi(ptr)))
ast_say_digits(chan, atoi(ptr), "", chan->language);
}
count++;
prev = peer;
res = channel_spy(chan, peer, &volfactor, fd);
if (res == -1) {
break;
} else if (res > 1 && spec) {
snprintf(name, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((peer = local_get_channel_begin_name(name))) {
chosen = 1;
}
continue;
}
}
}
}
if ((peer = local_channel_walk(peer)) == NULL) {
break;
}
}
waitms = count ? 100 : 5000;
}
if (fd > 0) {
close(fd);
}
if (oldrf && ast_set_read_format(chan, oldrf) < 0) {
ast_log(LOG_ERROR, "Could Not Set Read Format.\n");
}
if (oldwf && ast_set_write_format(chan, oldwf) < 0) {
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
}
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
ALL_DONE(u, res);
}
static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
int volfactor, const int fd, const char *mygroup, const char *spec,
const char *exten, const char *context)
{
char nameprefix[AST_NAME_STRLEN];
char peer_name[AST_NAME_STRLEN + 5];
signed char zero_volume = 0;
int waitms;
int res;
char *ptr;
int num;
int num_spyed_upon = 1;
struct chanspy_ds chanspy_ds = { 0, };
ast_mutex_init(&chanspy_ds.lock);
snprintf(chanspy_ds.unique_id, sizeof(chanspy_ds.unique_id), "%d", ast_atomic_fetchadd_int(&next_unique_id_to_use, +1));
if (chan->_state != AST_STATE_UP)
ast_answer(chan);
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
waitms = 100;
for (;;) {
struct chanspy_ds *peer_chanspy_ds = NULL, *next_chanspy_ds = NULL;
struct ast_channel *prev = NULL, *peer = NULL;
if (!ast_test_flag(flags, OPTION_QUIET) && num_spyed_upon) {
res = ast_streamfile(chan, "beep", chan->language);
if (!res)
res = ast_waitstream(chan, "");
else if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
}
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
/* reset for the next loop around, unless overridden later */
waitms = 100;
num_spyed_upon = 0;
for (peer_chanspy_ds = next_channel(chan, prev, spec, exten, context, &chanspy_ds);
peer_chanspy_ds;
chanspy_ds_free(peer_chanspy_ds), prev = peer,
peer_chanspy_ds = next_chanspy_ds ? next_chanspy_ds :
next_channel(chan, prev, spec, exten, context, &chanspy_ds), next_chanspy_ds = NULL) {
const char *group;
int igrp = !mygroup;
char *groups[25];
int num_groups = 0;
char dup_group[512];
int x;
char *s;
peer = peer_chanspy_ds->chan;
ast_mutex_unlock(&peer_chanspy_ds->lock);
if (peer == prev) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_check_hangup(chan)) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(peer)) {
ast_channel_unlock(peer);
continue;
}
if (ast_check_hangup(peer) || ast_test_flag(peer, AST_FLAG_SPYING)) {
ast_channel_unlock(peer);
continue;
}
if (mygroup) {
if ((group = pbx_builtin_getvar_helper(peer, "SPYGROUP"))) {
ast_copy_string(dup_group, group, sizeof(dup_group));
num_groups = ast_app_separate_args(dup_group, ':', groups,
sizeof(groups) / sizeof(groups[0]));
}
for (x = 0; x < num_groups; x++) {
if (!strcmp(mygroup, groups[x])) {
igrp = 1;
break;
}
}
}
if (!igrp) {
ast_channel_unlock(peer);
continue;
}
strcpy(peer_name, "spy-");
strncat(peer_name, peer->name, AST_NAME_STRLEN - 4 - 1);
ptr = strchr(peer_name, '/');
*ptr++ = '\0';
for (s = peer_name; s < ptr; s++)
*s = tolower(*s);
/* We have to unlock the peer channel here to avoid a deadlock.
* So, when we need to dereference it again, we have to lock the
* datastore and get the pointer from there to see if the channel
* is still valid. */
ast_channel_unlock(peer);
if (!ast_test_flag(flags, OPTION_QUIET)) {
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res) {
chanspy_ds_free(peer_chanspy_ds);
break;
}
} else
res = ast_say_character_str(chan, peer_name, "", chan->language);
if ((num = atoi(ptr)))
ast_say_digits(chan, atoi(ptr), "", chan->language);
}
res = channel_spy(chan, peer_chanspy_ds, &volfactor, fd, flags);
num_spyed_upon++;
if (res == -1) {
chanspy_ds_free(peer_chanspy_ds);
break;
} else if (res > 1 && spec) {
struct ast_channel *next;
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((next = ast_get_channel_by_name_prefix_locked(nameprefix, strlen(nameprefix)))) {
peer_chanspy_ds = chanspy_ds_free(peer_chanspy_ds);
next_chanspy_ds = setup_chanspy_ds(next, &chanspy_ds);
} else {
/* stay on this channel, if it is still valid */
ast_mutex_lock(&peer_chanspy_ds->lock);
if (peer_chanspy_ds->chan) {
ast_channel_lock(peer_chanspy_ds->chan);
next_chanspy_ds = peer_chanspy_ds;
peer_chanspy_ds = NULL;
} else {
/* the channel is gone */
ast_mutex_unlock(&peer_chanspy_ds->lock);
next_chanspy_ds = NULL;
}
}
peer = NULL;
}
}
if (res == -1 || ast_check_hangup(chan))
break;
}
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
ast_mutex_lock(&chanspy_ds.lock);
ast_mutex_unlock(&chanspy_ds.lock);
ast_mutex_destroy(&chanspy_ds.lock);
return res;
}