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Diffstat (limited to 'res/res_monitor.c')
| -rw-r--r-- | res/res_monitor.c | 714 |
1 files changed, 714 insertions, 0 deletions
diff --git a/res/res_monitor.c b/res/res_monitor.c new file mode 100644 index 000000000..4baa1580d --- /dev/null +++ b/res/res_monitor.c @@ -0,0 +1,714 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 1999 - 2005, Digium, Inc. + * + * Mark Spencer <markster@digium.com> + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*! \file + * + * \brief PBX channel monitoring + * + * \author Mark Spencer <markster@digium.com> + */ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <libgen.h> + +#include "asterisk/lock.h" +#include "asterisk/channel.h" +#include "asterisk/logger.h" +#include "asterisk/file.h" +#include "asterisk/pbx.h" +#include "asterisk/module.h" +#include "asterisk/manager.h" +#include "asterisk/cli.h" +#include "asterisk/monitor.h" +#include "asterisk/app.h" +#include "asterisk/utils.h" +#include "asterisk/config.h" +#include "asterisk/options.h" + +AST_MUTEX_DEFINE_STATIC(monitorlock); + +#define LOCK_IF_NEEDED(lock, needed) do { \ + if (needed) \ + ast_channel_lock(lock); \ + } while(0) + +#define UNLOCK_IF_NEEDED(lock, needed) do { \ + if (needed) \ + ast_channel_unlock(lock); \ + } while (0) + +static unsigned long seq = 0; + +static char *monitor_synopsis = "Monitor a channel"; + +static char *monitor_descrip = "Monitor([file_format[:urlbase]|[fname_base]|[options]]):\n" +"Used to start monitoring a channel. The channel's input and output\n" +"voice packets are logged to files until the channel hangs up or\n" +"monitoring is stopped by the StopMonitor application.\n" +" file_format optional, if not set, defaults to \"wav\"\n" +" fname_base if set, changes the filename used to the one specified.\n" +" options:\n" +" m - when the recording ends mix the two leg files into one and\n" +" delete the two leg files. If the variable MONITOR_EXEC is set, the\n" +" application referenced in it will be executed instead of\n" +#ifdef HAVE_SOXMIX +" soxmix and the raw leg files will NOT be deleted automatically.\n" +" soxmix or MONITOR_EXEC is handed 3 arguments, the two leg files\n" +#else +" sox and the raw leg files will NOT be deleted automatically.\n" +" sox or MONITOR_EXEC is handed 3 arguments, the two leg files\n" +#endif +" and a target mixed file name which is the same as the leg file names\n" +" only without the in/out designator.\n" +" If MONITOR_EXEC_ARGS is set, the contents will be passed on as\n" +" additional arguements to MONITOR_EXEC\n" +" Both MONITOR_EXEC and the Mix flag can be set from the\n" +" administrator interface\n" +"\n" +" b - Don't begin recording unless a call is bridged to another channel\n" +"\nReturns -1 if monitor files can't be opened or if the channel is already\n" +"monitored, otherwise 0.\n" +; + +static char *stopmonitor_synopsis = "Stop monitoring a channel"; + +static char *stopmonitor_descrip = "StopMonitor\n" + "Stops monitoring a channel. Has no effect if the channel is not monitored\n"; + +static char *changemonitor_synopsis = "Change monitoring filename of a channel"; + +static char *changemonitor_descrip = "ChangeMonitor(filename_base)\n" + "Changes monitoring filename of a channel. Has no effect if the channel is not monitored\n" + "The argument is the new filename base to use for monitoring this channel.\n"; + +static char *pausemonitor_synopsis = "Pause monitoring of a channel"; + +static char *pausemonitor_descrip = "PauseMonitor\n" + "Pauses monitoring of a channel until it is re-enabled by a call to UnpauseMonitor.\n"; + +static char *unpausemonitor_synopsis = "Unpause monitoring of a channel"; + +static char *unpausemonitor_descrip = "UnpauseMonitor\n" + "Unpauses monitoring of a channel on which monitoring had\n" + "previously been paused with PauseMonitor.\n"; + +static int ast_monitor_set_state(struct ast_channel *chan, int state) +{ + LOCK_IF_NEEDED(chan, 1); + if (!chan->monitor) { + UNLOCK_IF_NEEDED(chan, 1); + return -1; + } + chan->monitor->state = state; + UNLOCK_IF_NEEDED(chan, 1); + return 0; +} + +/* Start monitoring a channel */ +int ast_monitor_start( struct ast_channel *chan, const char *format_spec, + const char *fname_base, int need_lock) +{ + int res = 0; + char tmp[256]; + + LOCK_IF_NEEDED(chan, need_lock); + + if (!(chan->monitor)) { + struct ast_channel_monitor *monitor; + char *channel_name, *p; + + /* Create monitoring directory if needed */ + if (mkdir(ast_config_AST_MONITOR_DIR, 0770) < 0) { + if (errno != EEXIST) { + ast_log(LOG_WARNING, "Unable to create audio monitor directory: %s\n", + strerror(errno)); + } + } + + if (!(monitor = ast_calloc(1, sizeof(*monitor)))) { + UNLOCK_IF_NEEDED(chan, need_lock); + return -1; + } + + /* Determine file names */ + if (!ast_strlen_zero(fname_base)) { + int directory = strchr(fname_base, '/') ? 1 : 0; + const char *absolute = *fname_base == '/' ? "" : "/"; + /* try creating the directory just in case it doesn't exist */ + if (directory) { + char *name = strdup(fname_base); + snprintf(tmp, sizeof(tmp), "mkdir -p \"%s\"",dirname(name)); + free(name); + ast_safe_system(tmp); + } + snprintf(monitor->read_filename, FILENAME_MAX, "%s%s%s-in", + directory ? "" : ast_config_AST_MONITOR_DIR, absolute, fname_base); + snprintf(monitor->write_filename, FILENAME_MAX, "%s%s%s-out", + directory ? "" : ast_config_AST_MONITOR_DIR, absolute, fname_base); + ast_copy_string(monitor->filename_base, fname_base, sizeof(monitor->filename_base)); + } else { + ast_mutex_lock(&monitorlock); + snprintf(monitor->read_filename, FILENAME_MAX, "%s/audio-in-%ld", + ast_config_AST_MONITOR_DIR, seq); + snprintf(monitor->write_filename, FILENAME_MAX, "%s/audio-out-%ld", + ast_config_AST_MONITOR_DIR, seq); + seq++; + ast_mutex_unlock(&monitorlock); + + channel_name = ast_strdupa(chan->name); + while ((p = strchr(channel_name, '/'))) { + *p = '-'; + } + snprintf(monitor->filename_base, FILENAME_MAX, "%s/%d-%s", + ast_config_AST_MONITOR_DIR, (int)time(NULL), channel_name); + monitor->filename_changed = 1; + } + + monitor->stop = ast_monitor_stop; + + /* Determine file format */ + if (!ast_strlen_zero(format_spec)) { + monitor->format = strdup(format_spec); + } else { + monitor->format = strdup("wav"); + } + + /* open files */ + if (ast_fileexists(monitor->read_filename, NULL, NULL) > 0) { + ast_filedelete(monitor->read_filename, NULL); + } + if (!(monitor->read_stream = ast_writefile(monitor->read_filename, + monitor->format, NULL, + O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) { + ast_log(LOG_WARNING, "Could not create file %s\n", + monitor->read_filename); + free(monitor); + UNLOCK_IF_NEEDED(chan, need_lock); + return -1; + } + if (ast_fileexists(monitor->write_filename, NULL, NULL) > 0) { + ast_filedelete(monitor->write_filename, NULL); + } + if (!(monitor->write_stream = ast_writefile(monitor->write_filename, + monitor->format, NULL, + O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) { + ast_log(LOG_WARNING, "Could not create file %s\n", + monitor->write_filename); + ast_closestream(monitor->read_stream); + free(monitor); + UNLOCK_IF_NEEDED(chan, need_lock); + return -1; + } + chan->monitor = monitor; + ast_monitor_set_state(chan, AST_MONITOR_RUNNING); + /* so we know this call has been monitored in case we need to bill for it or something */ + pbx_builtin_setvar_helper(chan, "__MONITORED","true"); + } else { + ast_log(LOG_DEBUG,"Cannot start monitoring %s, already monitored\n", + chan->name); + res = -1; + } + + UNLOCK_IF_NEEDED(chan, need_lock); + + return res; +} + +/* + * The file format extensions that Asterisk uses are not all the same as that + * which soxmix expects. This function ensures that the format used as the + * extension on the filename is something soxmix will understand. + */ +static const char *get_soxmix_format(const char *format) +{ + const char *res = format; + + if (!strcasecmp(format,"ulaw")) + res = "ul"; + if (!strcasecmp(format,"alaw")) + res = "al"; + + return res; +} + +/* Stop monitoring a channel */ +int ast_monitor_stop(struct ast_channel *chan, int need_lock) +{ + int delfiles = 0; + + LOCK_IF_NEEDED(chan, need_lock); + + if (chan->monitor) { + char filename[ FILENAME_MAX ]; + + if (chan->monitor->read_stream) { + ast_closestream(chan->monitor->read_stream); + } + if (chan->monitor->write_stream) { + ast_closestream(chan->monitor->write_stream); + } + + if (chan->monitor->filename_changed && !ast_strlen_zero(chan->monitor->filename_base)) { + if (ast_fileexists(chan->monitor->read_filename,NULL,NULL) > 0) { + snprintf(filename, FILENAME_MAX, "%s-in", chan->monitor->filename_base); + if (ast_fileexists(filename, NULL, NULL) > 0) { + ast_filedelete(filename, NULL); + } + ast_filerename(chan->monitor->read_filename, filename, chan->monitor->format); + } else { + ast_log(LOG_WARNING, "File %s not found\n", chan->monitor->read_filename); + } + + if (ast_fileexists(chan->monitor->write_filename,NULL,NULL) > 0) { + snprintf(filename, FILENAME_MAX, "%s-out", chan->monitor->filename_base); + if (ast_fileexists(filename, NULL, NULL) > 0) { + ast_filedelete(filename, NULL); + } + ast_filerename(chan->monitor->write_filename, filename, chan->monitor->format); + } else { + ast_log(LOG_WARNING, "File %s not found\n", chan->monitor->write_filename); + } + } + + if (chan->monitor->joinfiles && !ast_strlen_zero(chan->monitor->filename_base)) { + char tmp[1024]; + char tmp2[1024]; + const char *format = !strcasecmp(chan->monitor->format,"wav49") ? "WAV" : chan->monitor->format; + char *name = chan->monitor->filename_base; + int directory = strchr(name, '/') ? 1 : 0; + char *dir = directory ? "" : ast_config_AST_MONITOR_DIR; + const char *execute, *execute_args; + const char *absolute = *name == '/' ? "" : "/"; + + /* Set the execute application */ + execute = pbx_builtin_getvar_helper(chan, "MONITOR_EXEC"); + if (ast_strlen_zero(execute)) { +#ifdef HAVE_SOXMIX + execute = "nice -n 19 soxmix"; +#else + execute = "nice -n 19 sox -m"; +#endif + format = get_soxmix_format(format); + delfiles = 1; + } + execute_args = pbx_builtin_getvar_helper(chan, "MONITOR_EXEC_ARGS"); + if (ast_strlen_zero(execute_args)) { + execute_args = ""; + } + + snprintf(tmp, sizeof(tmp), "%s \"%s%s%s-in.%s\" \"%s%s%s-out.%s\" \"%s%s%s.%s\" %s &", execute, dir, absolute, name, format, dir, absolute, name, format, dir, absolute, name, format,execute_args); + if (delfiles) { + snprintf(tmp2,sizeof(tmp2), "( %s& rm -f \"%s%s%s-\"* ) &",tmp, dir, absolute, name); /* remove legs when done mixing */ + ast_copy_string(tmp, tmp2, sizeof(tmp)); + } + ast_log(LOG_DEBUG,"monitor executing %s\n",tmp); + if (ast_safe_system(tmp) == -1) + ast_log(LOG_WARNING, "Execute of %s failed.\n",tmp); + } + + free(chan->monitor->format); + free(chan->monitor); + chan->monitor = NULL; + } + + UNLOCK_IF_NEEDED(chan, need_lock); + + return 0; +} + + +/* Pause monitoring of a channel */ +int ast_monitor_pause(struct ast_channel *chan) +{ + return ast_monitor_set_state(chan, AST_MONITOR_PAUSED); +} + +/* Unpause monitoring of a channel */ +int ast_monitor_unpause(struct ast_channel *chan) +{ + return ast_monitor_set_state(chan, AST_MONITOR_RUNNING); +} + +static int pause_monitor_exec(struct ast_channel *chan, void *data) +{ + return ast_monitor_pause(chan); +} + +static int unpause_monitor_exec(struct ast_channel *chan, void *data) +{ + return ast_monitor_unpause(chan); +} + +/* Change monitoring filename of a channel */ +int ast_monitor_change_fname(struct ast_channel *chan, const char *fname_base, int need_lock) +{ + char tmp[256]; + if (ast_strlen_zero(fname_base)) { + ast_log(LOG_WARNING, "Cannot change monitor filename of channel %s to null\n", chan->name); + return -1; + } + + LOCK_IF_NEEDED(chan, need_lock); + + if (chan->monitor) { + int directory = strchr(fname_base, '/') ? 1 : 0; + const char *absolute = *fname_base == '/' ? "" : "/"; + char tmpstring[sizeof(chan->monitor->filename_base)] = ""; + + /* before continuing, see if we're trying to rename the file to itself... */ + snprintf(tmpstring, sizeof(tmpstring), "%s%s%s", directory ? "" : ast_config_AST_MONITOR_DIR, absolute, fname_base); + if (!strcmp(tmpstring, chan->monitor->filename_base)) { + if (option_debug > 2) + ast_log(LOG_DEBUG, "No need to rename monitor filename to itself\n"); + UNLOCK_IF_NEEDED(chan, need_lock); + return 0; + } + + /* try creating the directory just in case it doesn't exist */ + if (directory) { + char *name = strdup(fname_base); + snprintf(tmp, sizeof(tmp), "mkdir -p %s",dirname(name)); + free(name); + ast_safe_system(tmp); + } + + ast_copy_string(chan->monitor->filename_base, tmpstring, sizeof(chan->monitor->filename_base)); + chan->monitor->filename_changed = 1; + } else { + ast_log(LOG_WARNING, "Cannot change monitor filename of channel %s to %s, monitoring not started\n", chan->name, fname_base); + } + + UNLOCK_IF_NEEDED(chan, need_lock); + + return 0; +} + +static int start_monitor_exec(struct ast_channel *chan, void *data) +{ + char *arg = NULL; + char *format = NULL; + char *fname_base = NULL; + char *options = NULL; + char *delay = NULL; + char *urlprefix = NULL; + char tmp[256]; + int joinfiles = 0; + int waitforbridge = 0; + int res = 0; + + /* Parse arguments. */ + if (!ast_strlen_zero((char*)data)) { + arg = ast_strdupa((char*)data); + format = arg; + fname_base = strchr(arg, '|'); + if (fname_base) { + *fname_base = 0; + fname_base++; + if ((options = strchr(fname_base, '|'))) { + *options = 0; + options++; + if (strchr(options, 'm')) + joinfiles = 1; + if (strchr(options, 'b')) + waitforbridge = 1; + } + } + arg = strchr(format,':'); + if (arg) { + *arg++ = 0; + urlprefix = arg; + } + } + if (urlprefix) { + snprintf(tmp,sizeof(tmp) - 1,"%s/%s.%s",urlprefix,fname_base, + ((strcmp(format,"gsm")) ? "wav" : "gsm")); + if (!chan->cdr && !(chan->cdr = ast_cdr_alloc())) + return -1; + ast_cdr_setuserfield(chan, tmp); + } + if (waitforbridge) { + /* We must remove the "b" option if listed. In principle none of + the following could give NULL results, but we check just to + be pedantic. Reconstructing with checks for 'm' option does not + work if we end up adding more options than 'm' in the future. */ + delay = ast_strdupa(data); + options = strrchr(delay, '|'); + if (options) { + arg = strchr(options, 'b'); + if (arg) { + *arg = 'X'; + pbx_builtin_setvar_helper(chan,"AUTO_MONITOR",delay); + } + } + return 0; + } + + res = ast_monitor_start(chan, format, fname_base, 1); + if (res < 0) + res = ast_monitor_change_fname(chan, fname_base, 1); + ast_monitor_setjoinfiles(chan, joinfiles); + + return res; +} + +static int stop_monitor_exec(struct ast_channel *chan, void *data) +{ + return ast_monitor_stop(chan, 1); +} + +static int change_monitor_exec(struct ast_channel *chan, void *data) +{ + return ast_monitor_change_fname(chan, (const char*)data, 1); +} + +static char start_monitor_action_help[] = +"Description: The 'Monitor' action may be used to record the audio on a\n" +" specified channel. The following parameters may be used to control\n" +" this:\n" +" Channel - Required. Used to specify the channel to record.\n" +" File - Optional. Is the name of the file created in the\n" +" monitor spool directory. Defaults to the same name\n" +" as the channel (with slashes replaced with dashes).\n" +" Format - Optional. Is the audio recording format. Defaults\n" +" to \"wav\".\n" +" Mix - Optional. Boolean parameter as to whether to mix\n" +" the input and output channels together after the\n" +" recording is finished.\n"; + +static int start_monitor_action(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + const char *fname = astman_get_header(m, "File"); + const char *format = astman_get_header(m, "Format"); + const char *mix = astman_get_header(m, "Mix"); + char *d; + + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + + if (ast_strlen_zero(fname)) { + /* No filename base specified, default to channel name as per CLI */ + if (!(fname = ast_strdup(c->name))) { + astman_send_error(s, m, "Could not start monitoring channel"); + ast_channel_unlock(c); + return 0; + } + /* Channels have the format technology/channel_name - have to replace that / */ + if ((d = strchr(fname, '/'))) + *d = '-'; + } + + if (ast_monitor_start(c, format, fname, 1)) { + if (ast_monitor_change_fname(c, fname, 1)) { + astman_send_error(s, m, "Could not start monitoring channel"); + ast_channel_unlock(c); + return 0; + } + } + + if (ast_true(mix)) { + ast_monitor_setjoinfiles(c, 1); + } + + ast_channel_unlock(c); + astman_send_ack(s, m, "Started monitoring channel"); + return 0; +} + +static char stop_monitor_action_help[] = +"Description: The 'StopMonitor' action may be used to end a previously\n" +" started 'Monitor' action. The only parameter is 'Channel', the name\n" +" of the channel monitored.\n"; + +static int stop_monitor_action(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + int res; + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + res = ast_monitor_stop(c, 1); + ast_channel_unlock(c); + if (res) { + astman_send_error(s, m, "Could not stop monitoring channel"); + return 0; + } + astman_send_ack(s, m, "Stopped monitoring channel"); + return 0; +} + +static char change_monitor_action_help[] = +"Description: The 'ChangeMonitor' action may be used to change the file\n" +" started by a previous 'Monitor' action. The following parameters may\n" +" be used to control this:\n" +" Channel - Required. Used to specify the channel to record.\n" +" File - Required. Is the new name of the file created in the\n" +" monitor spool directory.\n"; + +static int change_monitor_action(struct mansession *s, const struct message *m) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + const char *fname = astman_get_header(m, "File"); + if (ast_strlen_zero(name)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + if (ast_strlen_zero(fname)) { + astman_send_error(s, m, "No filename specified"); + return 0; + } + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return 0; + } + if (ast_monitor_change_fname(c, fname, 1)) { + astman_send_error(s, m, "Could not change monitored filename of channel"); + ast_channel_unlock(c); + return 0; + } + ast_channel_unlock(c); + astman_send_ack(s, m, "Changed monitor filename"); + return 0; +} + +void ast_monitor_setjoinfiles(struct ast_channel *chan, int turnon) +{ + if (chan->monitor) + chan->monitor->joinfiles = turnon; +} + +#define IS_NULL_STRING(string) ((!(string)) || (ast_strlen_zero((string)))) + +enum MONITOR_PAUSING_ACTION +{ + MONITOR_ACTION_PAUSE, + MONITOR_ACTION_UNPAUSE +}; + +static int do_pause_or_unpause(struct mansession *s, const struct message *m, int action) +{ + struct ast_channel *c = NULL; + const char *name = astman_get_header(m, "Channel"); + + if (IS_NULL_STRING(name)) { + astman_send_error(s, m, "No channel specified"); + return -1; + } + + c = ast_get_channel_by_name_locked(name); + if (!c) { + astman_send_error(s, m, "No such channel"); + return -1; + } + + if (action == MONITOR_ACTION_PAUSE) + ast_monitor_pause(c); + else + ast_monitor_unpause(c); + + ast_channel_unlock(c); + astman_send_ack(s, m, (action == MONITOR_ACTION_PAUSE ? "Paused monitoring of the channel" : "Unpaused monitoring of the channel")); + return 0; +} + +static char pause_monitor_action_help[] = + "Description: The 'PauseMonitor' action may be used to temporarily stop the\n" + " recording of a channel. The following parameters may\n" + " be used to control this:\n" + " Channel - Required. Used to specify the channel to record.\n"; + +static int pause_monitor_action(struct mansession *s, const struct message *m) +{ + return do_pause_or_unpause(s, m, MONITOR_ACTION_PAUSE); +} + +static char unpause_monitor_action_help[] = + "Description: The 'UnpauseMonitor' action may be used to re-enable recording\n" + " of a channel after calling PauseMonitor. The following parameters may\n" + " be used to control this:\n" + " Channel - Required. Used to specify the channel to record.\n"; + +static int unpause_monitor_action(struct mansession *s, const struct message *m) +{ + return do_pause_or_unpause(s, m, MONITOR_ACTION_UNPAUSE); +} + + +static int load_module(void) +{ + ast_register_application("Monitor", start_monitor_exec, monitor_synopsis, monitor_descrip); + ast_register_application("StopMonitor", stop_monitor_exec, stopmonitor_synopsis, stopmonitor_descrip); + ast_register_application("ChangeMonitor", change_monitor_exec, changemonitor_synopsis, changemonitor_descrip); + ast_register_application("PauseMonitor", pause_monitor_exec, pausemonitor_synopsis, pausemonitor_descrip); + ast_register_application("UnpauseMonitor", unpause_monitor_exec, unpausemonitor_synopsis, unpausemonitor_descrip); + ast_manager_register2("Monitor", EVENT_FLAG_CALL, start_monitor_action, monitor_synopsis, start_monitor_action_help); + ast_manager_register2("StopMonitor", EVENT_FLAG_CALL, stop_monitor_action, stopmonitor_synopsis, stop_monitor_action_help); + ast_manager_register2("ChangeMonitor", EVENT_FLAG_CALL, change_monitor_action, changemonitor_synopsis, change_monitor_action_help); + ast_manager_register2("PauseMonitor", EVENT_FLAG_CALL, pause_monitor_action, pausemonitor_synopsis, pause_monitor_action_help); + ast_manager_register2("UnpauseMonitor", EVENT_FLAG_CALL, unpause_monitor_action, unpausemonitor_synopsis, unpause_monitor_action_help); + + return 0; +} + +static int unload_module(void) +{ + ast_unregister_application("Monitor"); + ast_unregister_application("StopMonitor"); + ast_unregister_application("ChangeMonitor"); + ast_unregister_application("PauseMonitor"); + ast_unregister_application("UnpauseMonitor"); + ast_manager_unregister("Monitor"); + ast_manager_unregister("StopMonitor"); + ast_manager_unregister("ChangeMonitor"); + ast_manager_unregister("PauseMonitor"); + ast_manager_unregister("UnpauseMonitor"); + + return 0; +} + +/* usecount semantics need to be defined */ +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "Call Monitoring Resource", + .load = load_module, + .unload = unload_module, + ); |