git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6621 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2468 lines
67 KiB
C
Executable file
2468 lines
67 KiB
C
Executable file
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005
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*
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* OpenH323 Channel Driver for ASTERISK PBX.
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* By Jeremy McNamara
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* For The NuFone Network
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*
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* chan_h323 has been derived from code created by
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* Michael Manousos and Mark Spencer
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*
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*
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* This file is part of the chan_h323 driver for Asterisk
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*
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*/
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#include <sys/socket.h>
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#include <sys/signal.h>
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#include <sys/param.h>
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#if defined(BSD)
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#ifndef IPTOS_MINCOST
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#define IPTOS_MINCOST 0x02
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#endif
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#endif
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/lock.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/config.h"
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/options.h"
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#include "asterisk/utils.h"
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#include "asterisk/lock.h"
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#include "asterisk/sched.h"
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#include "asterisk/io.h"
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#include "asterisk/rtp.h"
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#include "asterisk/acl.h"
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#include "asterisk/callerid.h"
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#include "asterisk/cli.h"
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#include "asterisk/dsp.h"
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#include "asterisk/causes.h"
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#ifdef __cplusplus
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}
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#endif
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#include "h323/chan_h323.h"
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send_digit_cb on_send_digit;
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on_rtp_cb on_external_rtp_create;
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start_rtp_cb on_start_rtp_channel;
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setup_incoming_cb on_incoming_call;
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setup_outbound_cb on_outgoing_call;
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chan_ringing_cb on_chan_ringing;
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con_established_cb on_connection_established;
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clear_con_cb on_connection_cleared;
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answer_call_cb on_answer_call;
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progress_cb on_progress;
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rfc2833_cb on_set_rfc2833_payload;
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hangup_cb on_hangup;
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setcapabilities_cb on_setcapabilities;
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/* global debug flag */
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int h323debug;
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/** Variables required by Asterisk */
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static const char type[] = "H323";
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static const char desc[] = "The NuFone Network's Open H.323 Channel Driver";
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static const char tdesc[] = "The NuFone Network's Open H.323 Channel Driver";
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static const char config[] = "h323.conf";
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static char default_context[AST_MAX_CONTEXT] = "default";
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static struct sockaddr_in bindaddr;
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/** H.323 configuration values */
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static int h323_signalling_port = 1720;
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static char gatekeeper[100];
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static int gatekeeper_disable = 1;
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static int gatekeeper_discover = 0;
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static int usingGk = 0;
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static int gkroute = 0;
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/* Find user by alias (h.323 id) is default, alternative is the incomming call's source IP address*/
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static int userbyalias = 1;
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static int tos = 0;
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static char secret[50];
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static unsigned int unique = 0;
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static call_options_t global_options;
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/** Private structure of a OpenH323 channel */
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struct oh323_pvt {
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ast_mutex_t lock; /* Channel private lock */
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call_options_t options; /* Options to be used during call setup */
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int alreadygone; /* Whether or not we've already been destroyed by our peer */
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int needdestroy; /* if we need to be destroyed */
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call_details_t cd; /* Call details */
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struct ast_channel *owner; /* Who owns us */
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struct sockaddr_in sa; /* Our peer */
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struct sockaddr_in redirip; /* Where our RTP should be going if not to us */
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int nonCodecCapability; /* non-audio capability */
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int outgoing; /* Outgoing or incoming call? */
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char exten[AST_MAX_EXTENSION]; /* Requested extension */
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char context[AST_MAX_CONTEXT]; /* Context where to start */
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char accountcode[256]; /* Account code */
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char cid_num[80]; /* Caller*id number, if available */
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char cid_name[80]; /* Caller*id name, if available */
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char rdnis[80]; /* Referring DNIS, if available */
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int amaflags; /* AMA Flags */
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struct ast_rtp *rtp; /* RTP Session */
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struct ast_dsp *vad; /* Used for in-band DTMF detection */
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int nativeformats; /* Codec formats supported by a channel */
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int needhangup; /* Send hangup when Asterisk is ready */
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int hangupcause; /* Hangup cause from OpenH323 layer */
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int newstate; /* Pending state change */
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int newcontrol; /* Pending control to send */
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struct oh323_pvt *next; /* Next channel in list */
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} *iflist = NULL;
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static struct ast_user_list {
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struct oh323_user *users;
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ast_mutex_t lock;
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} userl;
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static struct ast_peer_list {
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struct oh323_peer *peers;
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ast_mutex_t lock;
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} peerl;
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static struct ast_alias_list {
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struct oh323_alias *aliases;
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ast_mutex_t lock;
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} aliasl;
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/** Asterisk RTP stuff */
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static struct sched_context *sched;
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static struct io_context *io;
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/** Protect the interface list (oh323_pvt) */
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AST_MUTEX_DEFINE_STATIC(iflock);
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/** Usage counter and associated lock */
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static int usecnt = 0;
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AST_MUTEX_DEFINE_STATIC(usecnt_lock);
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/* Protect the monitoring thread, so only one process can kill or start it, and not
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when it's doing something critical. */
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AST_MUTEX_DEFINE_STATIC(monlock);
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/* Protect the H.323 capabilities list, to avoid more than one channel to set the capabilities simultaneaously in the h323 stack. */
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AST_MUTEX_DEFINE_STATIC(caplock);
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/* Protect the reload process */
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AST_MUTEX_DEFINE_STATIC(h323_reload_lock);
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static int h323_reloading = 0;
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/* This is the thread for the monitor which checks for input on the channels
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which are not currently in use. */
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static pthread_t monitor_thread = AST_PTHREADT_NULL;
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static int restart_monitor(void);
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static int h323_do_reload(void);
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static struct ast_channel *oh323_request(const char *type, int format, void *data, int *cause);
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static int oh323_digit(struct ast_channel *c, char digit);
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static int oh323_call(struct ast_channel *c, char *dest, int timeout);
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static int oh323_hangup(struct ast_channel *c);
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static int oh323_answer(struct ast_channel *c);
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static struct ast_frame *oh323_read(struct ast_channel *c);
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static int oh323_write(struct ast_channel *c, struct ast_frame *frame);
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static int oh323_indicate(struct ast_channel *c, int condition);
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static int oh323_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
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static const struct ast_channel_tech oh323_tech = {
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.type = type,
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.description = tdesc,
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.capabilities = AST_FORMAT_ULAW,
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.properties = AST_CHAN_TP_WANTSJITTER,
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.requester = oh323_request,
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.send_digit = oh323_digit,
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.call = oh323_call,
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.hangup = oh323_hangup,
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.answer = oh323_answer,
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.read = oh323_read,
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.write = oh323_write,
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.indicate = oh323_indicate,
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.fixup = oh323_fixup,
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/* disable, for now */
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#if 0
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.bridge = ast_rtp_bridge,
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#endif
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};
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/* Channel and private structures should be already locked */
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static void __oh323_update_info(struct ast_channel *c, struct oh323_pvt *pvt)
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{
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if (c->nativeformats != pvt->nativeformats) {
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if (h323debug)
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ast_log(LOG_DEBUG, "Preparing %s for new native format\n", c->name);
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c->nativeformats = pvt->nativeformats;
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ast_set_read_format(c, c->readformat);
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ast_set_write_format(c, c->writeformat);
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}
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if (pvt->needhangup) {
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if (h323debug)
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ast_log(LOG_DEBUG, "Process pending hangup for %s\n", c->name);
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c->_softhangup |= AST_SOFTHANGUP_DEV;
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c->hangupcause = pvt->hangupcause;
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ast_queue_hangup(c);
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pvt->needhangup = 0;
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pvt->newstate = pvt->newcontrol = -1;
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}
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if (pvt->newstate >= 0) {
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ast_setstate(c, pvt->newstate);
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pvt->newstate = -1;
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}
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if (pvt->newcontrol >= 0) {
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ast_queue_control(c, pvt->newcontrol);
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pvt->newcontrol = -1;
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}
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}
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/* Only channel structure should be locked */
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static void oh323_update_info(struct ast_channel *c)
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{
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struct oh323_pvt *pvt = c->tech_pvt;
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if (pvt) {
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ast_mutex_lock(&pvt->lock);
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__oh323_update_info(c, pvt);
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ast_mutex_unlock(&pvt->lock);
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}
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}
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static void cleanup_call_details(call_details_t *cd)
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{
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if (cd->call_token) {
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free(cd->call_token);
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cd->call_token = NULL;
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}
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if (cd->call_source_aliases) {
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free(cd->call_source_aliases);
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cd->call_source_aliases = NULL;
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}
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if (cd->call_dest_alias) {
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free(cd->call_dest_alias);
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cd->call_dest_alias = NULL;
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}
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if (cd->call_source_name) {
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free(cd->call_source_name);
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cd->call_source_name = NULL;
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}
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if (cd->call_source_e164) {
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free(cd->call_source_e164);
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cd->call_source_e164 = NULL;
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}
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if (cd->call_dest_e164) {
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free(cd->call_dest_e164);
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cd->call_dest_e164 = NULL;
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}
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if (cd->sourceIp) {
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free(cd->sourceIp);
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cd->sourceIp = NULL;
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}
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}
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static void __oh323_destroy(struct oh323_pvt *pvt)
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{
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struct oh323_pvt *cur, *prev = NULL;
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if (pvt->rtp) {
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ast_rtp_destroy(pvt->rtp);
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}
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/* Free dsp used for in-band DTMF detection */
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if (pvt->vad) {
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ast_dsp_free(pvt->vad);
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}
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cleanup_call_details(&pvt->cd);
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/* Unlink us from the owner if we have one */
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if (pvt->owner) {
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ast_mutex_lock(&pvt->owner->lock);
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ast_log(LOG_DEBUG, "Detaching from %s\n", pvt->owner->name);
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pvt->owner->tech_pvt = NULL;
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ast_mutex_unlock(&pvt->owner->lock);
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}
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cur = iflist;
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while(cur) {
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if (cur == pvt) {
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if (prev)
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prev->next = cur->next;
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else
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iflist = cur->next;
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break;
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}
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prev = cur;
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cur = cur->next;
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}
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if (!cur) {
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ast_log(LOG_WARNING, "%p is not in list?!?! \n", cur);
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} else {
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ast_mutex_destroy(&pvt->lock);
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free(pvt);
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}
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}
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static void oh323_destroy(struct oh323_pvt *pvt)
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{
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ast_mutex_lock(&iflock);
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__oh323_destroy(pvt);
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ast_mutex_unlock(&iflock);
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}
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/**
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* Send (play) the specified digit to the channel.
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*
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*/
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static int oh323_digit(struct ast_channel *c, char digit)
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{
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struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
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char *token;
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if (!pvt) {
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ast_log(LOG_ERROR, "No private structure?! This is bad\n");
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return -1;
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}
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ast_mutex_lock(&pvt->lock);
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if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833)) {
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/* out-of-band DTMF */
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if (h323debug) {
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ast_log(LOG_DEBUG, "Sending out-of-band digit %c on %s\n", digit, c->name);
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}
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ast_rtp_senddigit(pvt->rtp, digit);
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} else {
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/* in-band DTMF */
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if (h323debug) {
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ast_log(LOG_DEBUG, "Sending inband digit %c on %s\n", digit, c->name);
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}
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token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
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h323_send_tone(token, digit);
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if (token) {
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free(token);
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}
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}
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ast_mutex_unlock(&pvt->lock);
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oh323_update_info(c);
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return 0;
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}
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/**
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* Make a call over the specified channel to the specified
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* destination.
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* Returns -1 on error, 0 on success.
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*/
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static int oh323_call(struct ast_channel *c, char *dest, int timeout)
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{
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int res = 0;
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struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt;
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char addr[INET_ADDRSTRLEN];
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char called_addr[1024];
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if (h323debug) {
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ast_log(LOG_DEBUG, "Calling to %s on %s\n", dest, c->name);
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}
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if ((c->_state != AST_STATE_DOWN) && (c->_state != AST_STATE_RESERVED)) {
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ast_log(LOG_WARNING, "Line is already in use (%s)\n", c->name);
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return -1;
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}
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ast_mutex_lock(&pvt->lock);
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if (usingGk) {
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if (ast_strlen_zero(pvt->exten)) {
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strncpy(called_addr, dest, sizeof(called_addr));
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} else {
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snprintf(called_addr, sizeof(called_addr), "%s@%s", pvt->exten, dest);
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}
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} else {
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ast_inet_ntoa(addr, sizeof(addr), pvt->sa.sin_addr);
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res = htons(pvt->sa.sin_port);
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if (ast_strlen_zero(pvt->exten)) {
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snprintf(called_addr, sizeof(called_addr), "%s:%d", addr, res);
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} else {
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snprintf(called_addr, sizeof(called_addr), "%s@%s:%d", pvt->exten, addr, res);
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}
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}
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/* make sure null terminated */
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called_addr[sizeof(called_addr) - 1] = '\0';
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if (c->cid.cid_num) {
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strncpy(pvt->options.cid_num, c->cid.cid_num, sizeof(pvt->options.cid_num));
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}
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if (c->cid.cid_name) {
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strncpy(pvt->options.cid_name, c->cid.cid_name, sizeof(pvt->options.cid_name));
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}
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/* indicate that this is an outgoing call */
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pvt->outgoing = 1;
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ast_log(LOG_DEBUG, "Placing outgoing call to %s, %d\n", called_addr, pvt->options.dtmfcodec);
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ast_mutex_unlock(&pvt->lock);
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res = h323_make_call(called_addr, &(pvt->cd), &pvt->options);
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if (res) {
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ast_log(LOG_NOTICE, "h323_make_call failed(%s)\n", c->name);
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return -1;
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}
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oh323_update_info(c);
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return 0;
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}
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static int oh323_answer(struct ast_channel *c)
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{
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int res;
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struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
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char *token;
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if (h323debug)
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ast_log(LOG_DEBUG, "Answering on %s\n", c->name);
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ast_mutex_lock(&pvt->lock);
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token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
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ast_mutex_unlock(&pvt->lock);
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res = h323_answering_call(token, 0);
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if (token)
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free(token);
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oh323_update_info(c);
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if (c->_state != AST_STATE_UP) {
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ast_setstate(c, AST_STATE_UP);
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}
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return res;
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}
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static int oh323_hangup(struct ast_channel *c)
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{
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struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
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int needcancel = 0;
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int q931cause = AST_CAUSE_NORMAL_CLEARING;
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char *call_token;
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if (h323debug)
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ast_log(LOG_DEBUG, "Hanging up call %s\n", c->name);
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if (!c->tech_pvt) {
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ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n");
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return 0;
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}
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ast_mutex_lock(&pvt->lock);
|
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/* Determine how to disconnect */
|
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if (pvt->owner != c) {
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ast_log(LOG_WARNING, "Huh? We aren't the owner?\n");
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ast_mutex_unlock(&pvt->lock);
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return 0;
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}
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if (!c || (c->_state != AST_STATE_UP)) {
|
|
needcancel = 1;
|
|
}
|
|
|
|
pvt->owner = NULL;
|
|
c->tech_pvt = NULL;
|
|
|
|
if (c->hangupcause) {
|
|
q931cause = c->hangupcause;
|
|
} else {
|
|
char *cause = pbx_builtin_getvar_helper(c, "DIALSTATUS");
|
|
if (cause) {
|
|
if (!strcmp(cause, "CONGESTION")) {
|
|
q931cause = AST_CAUSE_NORMAL_CIRCUIT_CONGESTION;
|
|
} else if (!strcmp(cause, "BUSY")) {
|
|
q931cause = AST_CAUSE_USER_BUSY;
|
|
} else if (!strcmp(cause, "CHANISUNVAIL")) {
|
|
q931cause = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
|
|
} else if (!strcmp(cause, "NOANSWER")) {
|
|
q931cause = AST_CAUSE_NO_ANSWER;
|
|
} else if (!strcmp(cause, "CANCEL")) {
|
|
q931cause = AST_CAUSE_CALL_REJECTED;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Start the process if it's not already started */
|
|
if (!pvt->alreadygone && !pvt->hangupcause) {
|
|
call_token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
|
|
if (call_token) {
|
|
/* Release lock to eliminate deadlock */
|
|
ast_mutex_unlock(&pvt->lock);
|
|
if (h323_clear_call(call_token, q931cause)) {
|
|
ast_log(LOG_DEBUG, "ClearCall failed.\n");
|
|
}
|
|
free(call_token);
|
|
ast_mutex_lock(&pvt->lock);
|
|
}
|
|
}
|
|
pvt->needdestroy = 1;
|
|
|
|
/* Update usage counter */
|
|
ast_mutex_lock(&usecnt_lock);
|
|
usecnt--;
|
|
if (usecnt < 0) {
|
|
ast_log(LOG_WARNING, "Usecnt < 0\n");
|
|
}
|
|
ast_mutex_unlock(&usecnt_lock);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
ast_update_use_count();
|
|
return 0;
|
|
}
|
|
|
|
static struct ast_frame *oh323_rtp_read(struct oh323_pvt *pvt)
|
|
{
|
|
/* Retrieve audio/etc from channel. Assumes pvt->lock is already held. */
|
|
struct ast_frame *f;
|
|
static struct ast_frame null_frame = { AST_FRAME_NULL, };
|
|
|
|
/* Only apply it for the first packet, we just need the correct ip/port */
|
|
if (pvt->options.nat) {
|
|
ast_rtp_setnat(pvt->rtp, pvt->options.nat);
|
|
pvt->options.nat = 0;
|
|
}
|
|
|
|
f = ast_rtp_read(pvt->rtp);
|
|
/* Don't send RFC2833 if we're not supposed to */
|
|
if (f && (f->frametype == AST_FRAME_DTMF) && !(pvt->options.dtmfmode & H323_DTMF_RFC2833)) {
|
|
return &null_frame;
|
|
}
|
|
if (pvt->owner) {
|
|
/* We already hold the channel lock */
|
|
if (f->frametype == AST_FRAME_VOICE) {
|
|
if (f->subclass != pvt->owner->nativeformats) {
|
|
/* Try to avoid deadlock */
|
|
if (ast_mutex_trylock(&pvt->owner->lock)) {
|
|
ast_log(LOG_NOTICE, "Format changed but channel is locked. Ignoring frame...\n");
|
|
return &null_frame;
|
|
}
|
|
ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
|
|
pvt->owner->nativeformats = f->subclass;
|
|
pvt->nativeformats = f->subclass;
|
|
ast_set_read_format(pvt->owner, pvt->owner->readformat);
|
|
ast_set_write_format(pvt->owner, pvt->owner->writeformat);
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
}
|
|
/* Do in-band DTMF detection */
|
|
if ((pvt->options.dtmfmode & H323_DTMF_INBAND) && pvt->vad) {
|
|
if (!ast_mutex_trylock(&pvt->owner->lock)) {
|
|
f = ast_dsp_process(pvt->owner,pvt->vad,f);
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
}
|
|
else
|
|
ast_log(LOG_NOTICE, "Unable to process inband DTMF while channel is locked\n");
|
|
if (f &&(f->frametype == AST_FRAME_DTMF)) {
|
|
ast_log(LOG_DEBUG, "Received in-band digit %c.\n", f->subclass);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return f;
|
|
}
|
|
|
|
static struct ast_frame *oh323_read(struct ast_channel *c)
|
|
{
|
|
struct ast_frame *fr;
|
|
struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt;
|
|
ast_mutex_lock(&pvt->lock);
|
|
__oh323_update_info(c, pvt);
|
|
fr = oh323_rtp_read(pvt);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return fr;
|
|
}
|
|
|
|
static int oh323_write(struct ast_channel *c, struct ast_frame *frame)
|
|
{
|
|
struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
|
|
int res = 0;
|
|
if (frame->frametype != AST_FRAME_VOICE) {
|
|
if (frame->frametype == AST_FRAME_IMAGE) {
|
|
return 0;
|
|
} else {
|
|
ast_log(LOG_WARNING, "Can't send %d type frames with H323 write\n", frame->frametype);
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (!(frame->subclass & c->nativeformats)) {
|
|
ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
|
|
frame->subclass, c->nativeformats, c->readformat, c->writeformat);
|
|
return 0;
|
|
}
|
|
}
|
|
if (pvt) {
|
|
ast_mutex_lock(&pvt->lock);
|
|
if (pvt->rtp) {
|
|
res = ast_rtp_write(pvt->rtp, frame);
|
|
}
|
|
__oh323_update_info(c, pvt);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int oh323_indicate(struct ast_channel *c, int condition)
|
|
{
|
|
|
|
struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
|
|
char *token = (char *)NULL;
|
|
|
|
ast_mutex_lock(&pvt->lock);
|
|
token = (pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "OH323: Indicating %d on %s\n", condition, token);
|
|
|
|
switch(condition) {
|
|
case AST_CONTROL_RINGING:
|
|
if (c->_state == AST_STATE_RING || c->_state == AST_STATE_RINGING) {
|
|
h323_send_alerting(token);
|
|
break;
|
|
}
|
|
if (token)
|
|
free(token);
|
|
return -1;
|
|
case AST_CONTROL_PROGRESS:
|
|
if (c->_state != AST_STATE_UP) {
|
|
h323_send_progress(token);
|
|
break;
|
|
}
|
|
if (token)
|
|
free(token);
|
|
return -1;
|
|
|
|
case AST_CONTROL_BUSY:
|
|
if (c->_state != AST_STATE_UP) {
|
|
h323_answering_call(token, 1);
|
|
ast_mutex_lock(&pvt->lock);
|
|
pvt->alreadygone = 1;
|
|
ast_mutex_unlock(&pvt->lock);
|
|
ast_softhangup_nolock(c, AST_SOFTHANGUP_DEV);
|
|
break;
|
|
}
|
|
if (token)
|
|
free(token);
|
|
return -1;
|
|
case AST_CONTROL_CONGESTION:
|
|
if (c->_state != AST_STATE_UP) {
|
|
h323_answering_call(token, 1);
|
|
ast_mutex_lock(&pvt->lock);
|
|
pvt->alreadygone = 1;
|
|
ast_mutex_unlock(&pvt->lock);
|
|
ast_softhangup_nolock(c, AST_SOFTHANGUP_DEV);
|
|
break;
|
|
}
|
|
if (token)
|
|
free(token);
|
|
return -1;
|
|
case AST_CONTROL_PROCEEDING:
|
|
case -1:
|
|
if (token)
|
|
free(token);
|
|
return -1;
|
|
default:
|
|
ast_log(LOG_WARNING, "Don't know how to indicate condition %d on %s\n", condition, token);
|
|
if (token)
|
|
free(token);
|
|
return -1;
|
|
}
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "OH323: Indicated %d on %s\n", condition, token);
|
|
if (token)
|
|
free(token);
|
|
oh323_update_info(c);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int oh323_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
|
|
{
|
|
struct oh323_pvt *pvt = (struct oh323_pvt *) newchan->tech_pvt;
|
|
|
|
ast_mutex_lock(&pvt->lock);
|
|
if (pvt->owner != oldchan) {
|
|
ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, pvt->owner);
|
|
return -1;
|
|
}
|
|
pvt->owner = newchan;
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return 0;
|
|
}
|
|
|
|
/* Private structure should be locked on a call */
|
|
static struct ast_channel *__oh323_new(struct oh323_pvt *pvt, int state, const char *host)
|
|
{
|
|
struct ast_channel *ch;
|
|
int fmt;
|
|
|
|
/* Don't hold a oh323_pvt lock while we allocate a chanel */
|
|
ast_mutex_unlock(&pvt->lock);
|
|
ch = ast_channel_alloc(1);
|
|
/* Update usage counter */
|
|
ast_mutex_lock(&usecnt_lock);
|
|
usecnt++;
|
|
ast_mutex_unlock(&usecnt_lock);
|
|
ast_update_use_count();
|
|
ast_mutex_lock(&pvt->lock);
|
|
if (ch) {
|
|
ch->tech = &oh323_tech;
|
|
snprintf(ch->name, sizeof(ch->name), "H323/%s", host);
|
|
ch->nativeformats = pvt->options.capability;
|
|
if (!ch->nativeformats) {
|
|
ch->nativeformats = global_options.capability;
|
|
}
|
|
pvt->nativeformats = ch->nativeformats;
|
|
fmt = ast_best_codec(ch->nativeformats);
|
|
ch->type = type;
|
|
ch->fds[0] = ast_rtp_fd(pvt->rtp);
|
|
if (state == AST_STATE_RING) {
|
|
ch->rings = 1;
|
|
}
|
|
ch->writeformat = fmt;
|
|
ch->rawwriteformat = fmt;
|
|
ch->readformat = fmt;
|
|
ch->rawreadformat = fmt;
|
|
/* Allocate dsp for in-band DTMF support */
|
|
if (pvt->options.dtmfmode & H323_DTMF_INBAND) {
|
|
pvt->vad = ast_dsp_new();
|
|
ast_dsp_set_features(pvt->vad, DSP_FEATURE_DTMF_DETECT);
|
|
}
|
|
/* Register channel functions. */
|
|
ch->tech_pvt = pvt;
|
|
/* Set the owner of this channel */
|
|
pvt->owner = ch;
|
|
|
|
strncpy(ch->context, pvt->context, sizeof(ch->context) - 1);
|
|
strncpy(ch->exten, pvt->exten, sizeof(ch->exten) - 1);
|
|
ch->priority = 1;
|
|
if (!ast_strlen_zero(pvt->accountcode)) {
|
|
strncpy(ch->accountcode, pvt->accountcode, sizeof(ch->accountcode) - 1);
|
|
}
|
|
if (pvt->amaflags) {
|
|
ch->amaflags = pvt->amaflags;
|
|
}
|
|
if (!ast_strlen_zero(pvt->cid_num)) {
|
|
ch->cid.cid_num = strdup(pvt->cid_num);
|
|
} else if (pvt->cd.call_source_e164 && !ast_strlen_zero(pvt->cd.call_source_e164)) {
|
|
ch->cid.cid_num = strdup(pvt->cd.call_source_e164);
|
|
}
|
|
if (!ast_strlen_zero(pvt->cid_name)) {
|
|
ch->cid.cid_name = strdup(pvt->cid_name);
|
|
} else if (pvt->cd.call_source_e164 && !ast_strlen_zero(pvt->cd.call_source_name)) {
|
|
ch->cid.cid_name = strdup(pvt->cd.call_source_name);
|
|
}
|
|
if (!ast_strlen_zero(pvt->rdnis)) {
|
|
ch->cid.cid_rdnis = strdup(pvt->rdnis);
|
|
}
|
|
if (!ast_strlen_zero(pvt->exten) && strcmp(pvt->exten, "s")) {
|
|
ch->cid.cid_dnid = strdup(pvt->exten);
|
|
}
|
|
ast_setstate(ch, state);
|
|
if (state != AST_STATE_DOWN) {
|
|
if (ast_pbx_start(ch)) {
|
|
ast_log(LOG_WARNING, "Unable to start PBX on %s\n", ch->name);
|
|
ast_hangup(ch);
|
|
ch = NULL;
|
|
}
|
|
}
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
|
|
}
|
|
return ch;
|
|
}
|
|
|
|
static struct oh323_pvt *oh323_alloc(int callid)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
|
|
pvt = (struct oh323_pvt *) malloc(sizeof(struct oh323_pvt));
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Couldn't allocate private structure. This is bad\n");
|
|
return NULL;
|
|
}
|
|
memset(pvt, 0, sizeof(struct oh323_pvt));
|
|
pvt->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0,bindaddr.sin_addr);
|
|
if (!pvt->rtp) {
|
|
ast_log(LOG_WARNING, "Unable to create RTP session: %s\n", strerror(errno));
|
|
free(pvt);
|
|
return NULL;
|
|
}
|
|
ast_rtp_settos(pvt->rtp, tos);
|
|
ast_mutex_init(&pvt->lock);
|
|
/* Ensure the call token is allocated */
|
|
if ((pvt->cd).call_token == NULL) {
|
|
(pvt->cd).call_token = (char *)malloc(128);
|
|
}
|
|
if (!pvt->cd.call_token) {
|
|
ast_log(LOG_ERROR, "Not enough memory to alocate call token\n");
|
|
return NULL;
|
|
}
|
|
memset((char *)(pvt->cd).call_token, 0, 128);
|
|
pvt->cd.call_reference = callid;
|
|
memcpy(&pvt->options, &global_options, sizeof(pvt->options));
|
|
if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
|
|
pvt->nonCodecCapability |= AST_RTP_DTMF;
|
|
} else {
|
|
pvt->nonCodecCapability &= ~AST_RTP_DTMF;
|
|
}
|
|
strncpy(pvt->context, default_context, sizeof(pvt->context) - 1);
|
|
pvt->newstate = pvt->newcontrol = -1;
|
|
/* Add to interface list */
|
|
ast_mutex_lock(&iflock);
|
|
pvt->next = iflist;
|
|
iflist = pvt;
|
|
ast_mutex_unlock(&iflock);
|
|
return pvt;
|
|
}
|
|
|
|
static struct oh323_pvt *find_call_locked(int call_reference, const char *token)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
|
|
ast_mutex_lock(&iflock);
|
|
pvt = iflist;
|
|
while(pvt) {
|
|
if (!pvt->needdestroy && ((signed int)pvt->cd.call_reference == call_reference)) {
|
|
/* Found the call */
|
|
if ((token != NULL) && (!strcmp(pvt->cd.call_token, token))) {
|
|
ast_mutex_lock(&pvt->lock);
|
|
ast_mutex_unlock(&iflock);
|
|
return pvt;
|
|
} else if (token == NULL) {
|
|
ast_log(LOG_WARNING, "Call Token is NULL\n");
|
|
ast_mutex_lock(&pvt->lock);
|
|
ast_mutex_unlock(&iflock);
|
|
return pvt;
|
|
}
|
|
}
|
|
pvt = pvt->next;
|
|
}
|
|
ast_mutex_unlock(&iflock);
|
|
return NULL;
|
|
}
|
|
|
|
static int update_state(struct oh323_pvt *pvt, int state, int signal)
|
|
{
|
|
if (!pvt)
|
|
return 0;
|
|
if (pvt->owner && !ast_mutex_trylock(&pvt->owner->lock)) {
|
|
if (state >= 0)
|
|
ast_setstate(pvt->owner, state);
|
|
if (signal >= 0)
|
|
ast_queue_control(pvt->owner, signal);
|
|
return 1;
|
|
}
|
|
else {
|
|
if (state >= 0)
|
|
pvt->newstate = state;
|
|
if (signal >= 0)
|
|
pvt->newcontrol = signal;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
struct oh323_user *find_user(const call_details_t *cd)
|
|
{
|
|
struct oh323_user *u;
|
|
char iabuf[INET_ADDRSTRLEN];
|
|
u = userl.users;
|
|
if (userbyalias) {
|
|
while(u) {
|
|
if (!strcasecmp(u->name, cd->call_source_aliases)) {
|
|
break;
|
|
}
|
|
u = u->next;
|
|
}
|
|
} else {
|
|
while(u) {
|
|
if (!strcasecmp(cd->sourceIp, ast_inet_ntoa(iabuf, sizeof(iabuf), u->addr.sin_addr))) {
|
|
break;
|
|
}
|
|
u = u->next;
|
|
}
|
|
}
|
|
return u;
|
|
}
|
|
|
|
struct oh323_peer *find_peer(const char *peer, struct sockaddr_in *sin)
|
|
{
|
|
struct oh323_peer *p = NULL;
|
|
static char iabuf[INET_ADDRSTRLEN];
|
|
|
|
p = peerl.peers;
|
|
if (peer) {
|
|
while(p) {
|
|
if (!strcasecmp(p->name, peer)) {
|
|
ast_log(LOG_DEBUG, "Found peer %s by name\n", peer);
|
|
break;
|
|
}
|
|
p = p->next;
|
|
}
|
|
} else {
|
|
/* find by sin */
|
|
if (sin) {
|
|
while (p) {
|
|
if ((!inaddrcmp(&p->addr, sin)) ||
|
|
(p->addr.sin_addr.s_addr == sin->sin_addr.s_addr)) {
|
|
ast_log(LOG_DEBUG, "Found peer %s/%s by addr\n", peer, ast_inet_ntoa(iabuf, sizeof(iabuf), p->addr.sin_addr));
|
|
break;
|
|
}
|
|
p = p->next;
|
|
}
|
|
}
|
|
}
|
|
if (!p) {
|
|
ast_log(LOG_DEBUG, "Could not find peer %s by name or address\n", peer);
|
|
}
|
|
return p;
|
|
}
|
|
|
|
static int create_addr(struct oh323_pvt *pvt, char *opeer)
|
|
{
|
|
struct hostent *hp;
|
|
struct ast_hostent ahp;
|
|
struct oh323_peer *p;
|
|
int portno;
|
|
int found = 0;
|
|
char *port;
|
|
char *hostn;
|
|
char peer[256] = "";
|
|
|
|
strncpy(peer, opeer, sizeof(peer) - 1);
|
|
port = strchr(peer, ':');
|
|
if (port) {
|
|
*port = '\0';
|
|
port++;
|
|
}
|
|
pvt->sa.sin_family = AF_INET;
|
|
ast_mutex_lock(&peerl.lock);
|
|
p = find_peer(peer, NULL);
|
|
if (p) {
|
|
found++;
|
|
memcpy(&pvt->options, &p->options, sizeof(pvt->options));
|
|
if (pvt->rtp) {
|
|
ast_log(LOG_DEBUG, "Setting NAT on RTP to %d\n", pvt->options.nat);
|
|
ast_rtp_setnat(pvt->rtp, pvt->options.nat);
|
|
}
|
|
if (pvt->options.dtmfmode) {
|
|
if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
|
|
pvt->nonCodecCapability |= AST_RTP_DTMF;
|
|
} else {
|
|
pvt->nonCodecCapability &= ~AST_RTP_DTMF;
|
|
}
|
|
}
|
|
if (p->addr.sin_addr.s_addr) {
|
|
pvt->sa.sin_addr = p->addr.sin_addr;
|
|
pvt->sa.sin_port = p->addr.sin_port;
|
|
}
|
|
}
|
|
ast_mutex_unlock(&peerl.lock);
|
|
if (!p && !found) {
|
|
hostn = peer;
|
|
if (port) {
|
|
portno = atoi(port);
|
|
} else {
|
|
portno = h323_signalling_port;
|
|
}
|
|
hp = ast_gethostbyname(hostn, &ahp);
|
|
if (hp) {
|
|
memcpy(&pvt->options, &global_options, sizeof(pvt->options));
|
|
memcpy(&pvt->sa.sin_addr, hp->h_addr, sizeof(pvt->sa.sin_addr));
|
|
pvt->sa.sin_port = htons(portno);
|
|
return 0;
|
|
} else {
|
|
ast_log(LOG_WARNING, "No such host: %s\n", peer);
|
|
return -1;
|
|
}
|
|
} else if (!p) {
|
|
return -1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
static struct ast_channel *oh323_request(const char *type, int format, void *data, int *cause)
|
|
{
|
|
int oldformat;
|
|
struct oh323_pvt *pvt;
|
|
struct ast_channel *tmpc = NULL;
|
|
char *dest = (char *)data;
|
|
char *ext, *host;
|
|
char *h323id = NULL;
|
|
char tmp[256], tmp1[256];
|
|
|
|
ast_log(LOG_DEBUG, "type=%s, format=%d, data=%s.\n", type, format, (char *)data);
|
|
pvt = oh323_alloc(0);
|
|
if (!pvt) {
|
|
ast_log(LOG_WARNING, "Unable to build pvt data for '%s'\n", (char *)data);
|
|
return NULL;
|
|
}
|
|
oldformat = format;
|
|
format &= ((AST_FORMAT_MAX_AUDIO << 1) - 1);
|
|
if (!format) {
|
|
ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format);
|
|
return NULL;
|
|
}
|
|
strncpy(tmp, dest, sizeof(tmp) - 1);
|
|
host = strchr(tmp, '@');
|
|
if (host) {
|
|
*host = '\0';
|
|
host++;
|
|
ext = tmp;
|
|
} else {
|
|
host = tmp;
|
|
ext = NULL;
|
|
}
|
|
strtok_r(host, "/", &(h323id));
|
|
if (h323id && !ast_strlen_zero(h323id)) {
|
|
h323_set_id(h323id);
|
|
}
|
|
if (ext) {
|
|
strncpy(pvt->exten, ext, sizeof(pvt->exten) - 1);
|
|
}
|
|
ast_log(LOG_DEBUG, "Extension: %s Host: %s\n", pvt->exten, host);
|
|
if (!usingGk) {
|
|
if (create_addr(pvt, host)) {
|
|
oh323_destroy(pvt);
|
|
return NULL;
|
|
}
|
|
}
|
|
else {
|
|
memcpy(&pvt->options, &global_options, sizeof(pvt->options));
|
|
if (pvt->rtp) {
|
|
ast_log(LOG_DEBUG, "Setting NAT on RTP to %d\n", pvt->options.nat);
|
|
ast_rtp_setnat(pvt->rtp, pvt->options.nat);
|
|
}
|
|
if (pvt->options.dtmfmode) {
|
|
if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
|
|
pvt->nonCodecCapability |= AST_RTP_DTMF;
|
|
} else {
|
|
pvt->nonCodecCapability &= ~AST_RTP_DTMF;
|
|
}
|
|
}
|
|
}
|
|
|
|
ast_mutex_lock(&caplock);
|
|
/* Generate unique channel identifier */
|
|
snprintf(tmp1, sizeof(tmp1)-1, "%s-%u", host, ++unique);
|
|
tmp1[sizeof(tmp1)-1] = '\0';
|
|
ast_mutex_unlock(&caplock);
|
|
|
|
ast_mutex_lock(&pvt->lock);
|
|
tmpc = __oh323_new(pvt, AST_STATE_DOWN, tmp1);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
if (!tmpc) {
|
|
oh323_destroy(pvt);
|
|
}
|
|
ast_update_use_count();
|
|
restart_monitor();
|
|
return tmpc;
|
|
}
|
|
|
|
/** Find a call by alias */
|
|
struct oh323_alias *find_alias(const char *source_aliases)
|
|
{
|
|
struct oh323_alias *a;
|
|
|
|
a = aliasl.aliases;
|
|
while(a) {
|
|
if (!strcasecmp(a->name, source_aliases)) {
|
|
break;
|
|
}
|
|
a = a->next;
|
|
}
|
|
return a;
|
|
}
|
|
|
|
/**
|
|
* Callback for sending digits from H.323 up to asterisk
|
|
*
|
|
*/
|
|
int send_digit(unsigned call_reference, char digit, const char *token)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
struct ast_frame f;
|
|
int res;
|
|
|
|
ast_log(LOG_DEBUG, "Received Digit: %c\n", digit);
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Private structure not found in send_digit.\n");
|
|
return -1;
|
|
}
|
|
memset(&f, 0, sizeof(f));
|
|
f.frametype = AST_FRAME_DTMF;
|
|
f.subclass = digit;
|
|
f.datalen = 0;
|
|
f.samples = 800;
|
|
f.offset = 0;
|
|
f.data = NULL;
|
|
f.mallocd = 0;
|
|
f.src = "SEND_DIGIT";
|
|
res = ast_queue_frame(pvt->owner, &f);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* Callback function used to inform the H.323 stack of the local rtp ip/port details
|
|
*
|
|
* Returns the local RTP information
|
|
*/
|
|
struct rtp_info *external_rtp_create(unsigned call_reference, const char * token)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
struct sockaddr_in us;
|
|
struct rtp_info *info;
|
|
|
|
info = (struct rtp_info *)malloc(sizeof(struct rtp_info));
|
|
if (!info) {
|
|
ast_log(LOG_ERROR, "Unable to allocated info structure, this is very bad\n");
|
|
return NULL;
|
|
}
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
free(info);
|
|
ast_log(LOG_ERROR, "Unable to find call %s(%d)\n", token, call_reference);
|
|
return NULL;
|
|
}
|
|
/* figure out our local RTP port and tell the H.323 stack about it */
|
|
ast_rtp_get_us(pvt->rtp, &us);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
|
|
ast_inet_ntoa(info->addr, sizeof(info->addr), us.sin_addr);
|
|
info->port = ntohs(us.sin_port);
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Sending RTP 'US' %s:%d\n", info->addr, info->port);
|
|
return info;
|
|
}
|
|
|
|
/**
|
|
* Definition taken from rtp.c for rtpPayloadType because we need it here.
|
|
*/
|
|
struct rtpPayloadType {
|
|
int isAstFormat; /* whether the following code is an AST_FORMAT */
|
|
int code;
|
|
};
|
|
|
|
/**
|
|
* Call-back function passing remote ip/port information from H.323 to asterisk
|
|
*
|
|
* Returns nothing
|
|
*/
|
|
void setup_rtp_connection(unsigned call_reference, const char *remoteIp, int remotePort, const char *token, int pt)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
struct sockaddr_in them;
|
|
struct rtpPayloadType rtptype;
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Setting up RTP connection for %s\n", token);
|
|
|
|
/* Find the call or allocate a private structure if call not found */
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Something is wrong: rtp\n");
|
|
return;
|
|
}
|
|
if (pvt->alreadygone) {
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return;
|
|
}
|
|
rtptype = ast_rtp_lookup_pt(pvt->rtp, pt);
|
|
pvt->nativeformats = rtptype.code;
|
|
if (pvt->owner && !ast_mutex_trylock(&pvt->owner->lock)) {
|
|
pvt->owner->nativeformats = pvt->nativeformats;
|
|
ast_set_read_format(pvt->owner, pvt->owner->readformat);
|
|
ast_set_write_format(pvt->owner, pvt->owner->writeformat);
|
|
if (pvt->options.progress_audio)
|
|
ast_queue_control(pvt->owner, AST_CONTROL_PROGRESS);
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
}
|
|
else {
|
|
if (pvt->options.progress_audio)
|
|
pvt->newcontrol = AST_CONTROL_PROGRESS;
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "RTP connection preparation for %s is pending...\n", token);
|
|
}
|
|
|
|
them.sin_family = AF_INET;
|
|
/* only works for IPv4 */
|
|
them.sin_addr.s_addr = inet_addr(remoteIp);
|
|
them.sin_port = htons(remotePort);
|
|
ast_rtp_set_peer(pvt->rtp, &them);
|
|
|
|
ast_mutex_unlock(&pvt->lock);
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "RTP connection prepared for %s\n", token);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Call-back function to signal asterisk that the channel has been answered
|
|
* Returns nothing
|
|
*/
|
|
void connection_made(unsigned call_reference, const char *token)
|
|
{
|
|
struct ast_channel *c = NULL;
|
|
struct oh323_pvt *pvt;
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Call %s answered\n", token);
|
|
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Something is wrong: connection\n");
|
|
return;
|
|
}
|
|
|
|
/* Inform asterisk about remote party connected only on outgoing calls */
|
|
if (!pvt->outgoing) {
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return;
|
|
}
|
|
if (update_state(pvt, AST_STATE_UP, AST_CONTROL_ANSWER))
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return;
|
|
}
|
|
|
|
int progress(unsigned call_reference, const char *token, int inband)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
|
|
ast_log(LOG_DEBUG, "Received ALERT/PROGRESS message for %s tones\n", (inband ? "inband" : "self-generated"));
|
|
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Private structure not found in progress.\n");
|
|
return -1;
|
|
}
|
|
if (!pvt->owner) {
|
|
ast_mutex_unlock(&pvt->lock);
|
|
ast_log(LOG_ERROR, "No Asterisk channel associated with private structure.\n");
|
|
return -1;
|
|
}
|
|
if (update_state(pvt, -1, (inband ? AST_CONTROL_PROGRESS : AST_CONTROL_RINGING)))
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Call-back function for incoming calls
|
|
*
|
|
* Returns 1 on success
|
|
*/
|
|
call_options_t *setup_incoming_call(call_details_t *cd)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
struct oh323_user *user = NULL;
|
|
struct oh323_alias *alias = NULL;
|
|
char iabuf[INET_ADDRSTRLEN];
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Setting up incoming call for %s\n", cd->call_token);
|
|
|
|
/* allocate the call*/
|
|
pvt = oh323_alloc(cd->call_reference);
|
|
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Unable to allocate private structure, this is bad.\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* Populate the call details in the private structure */
|
|
memcpy(&pvt->cd, cd, sizeof(pvt->cd));
|
|
memcpy(&pvt->options, &global_options, sizeof(pvt->options));
|
|
|
|
if (h323debug) {
|
|
ast_verbose(VERBOSE_PREFIX_3 "Setting up Call\n");
|
|
ast_verbose(VERBOSE_PREFIX_3 "\tCall token: [%s]\n", pvt->cd.call_token);
|
|
ast_verbose(VERBOSE_PREFIX_3 "\tCalling party name: [%s]\n", pvt->cd.call_source_name);
|
|
ast_verbose(VERBOSE_PREFIX_3 "\tCalling party number: [%s]\n", pvt->cd.call_source_e164);
|
|
ast_verbose(VERBOSE_PREFIX_3 "\tCalled party name: [%s]\n", pvt->cd.call_dest_alias);
|
|
ast_verbose(VERBOSE_PREFIX_3 "\tCalled party number: [%s]\n", pvt->cd.call_dest_e164);
|
|
}
|
|
|
|
/* Decide if we are allowing Gatekeeper routed calls*/
|
|
if ((!strcasecmp(cd->sourceIp, gatekeeper)) && (gkroute == -1) && (usingGk)) {
|
|
if (!ast_strlen_zero(cd->call_dest_e164)) {
|
|
strncpy(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten) - 1);
|
|
strncpy(pvt->context, default_context, sizeof(pvt->context) - 1);
|
|
} else {
|
|
alias = find_alias(cd->call_dest_alias);
|
|
if (!alias) {
|
|
ast_log(LOG_ERROR, "Call for %s rejected, alias not found\n", cd->call_dest_alias);
|
|
return NULL;
|
|
}
|
|
strncpy(pvt->exten, alias->name, sizeof(pvt->exten) - 1);
|
|
strncpy(pvt->context, alias->context, sizeof(pvt->context) - 1);
|
|
}
|
|
} else {
|
|
/* Either this call is not from the Gatekeeper
|
|
or we are not allowing gk routed calls */
|
|
user = find_user(cd);
|
|
if (!user) {
|
|
if (!ast_strlen_zero(pvt->cd.call_dest_e164)) {
|
|
strncpy(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten) - 1);
|
|
} else {
|
|
strncpy(pvt->exten, cd->call_dest_alias, sizeof(pvt->exten) - 1);
|
|
}
|
|
if (ast_strlen_zero(default_context)) {
|
|
ast_log(LOG_ERROR, "Call from '%s' rejected due to no default context\n", pvt->cd.call_source_aliases);
|
|
return NULL;
|
|
}
|
|
strncpy(pvt->context, default_context, sizeof(pvt->context) - 1);
|
|
ast_log(LOG_DEBUG, "Sending %s to context [%s]\n", cd->call_source_aliases, pvt->context);
|
|
/* XXX: Is it really required??? */
|
|
#if 0
|
|
memset(&pvt->options, 0, sizeof(pvt->options));
|
|
#endif
|
|
} else {
|
|
if (user->host) {
|
|
if (strcasecmp(cd->sourceIp, ast_inet_ntoa(iabuf, sizeof(iabuf), user->addr.sin_addr))) {
|
|
if (ast_strlen_zero(user->context)) {
|
|
if (ast_strlen_zero(default_context)) {
|
|
ast_log(LOG_ERROR, "Call from '%s' rejected due to non-matching IP address (%s) and no default context\n", user->name, cd->sourceIp);
|
|
return NULL;
|
|
}
|
|
strncpy(pvt->context, default_context, sizeof(pvt->context) - 1);
|
|
} else {
|
|
strncpy(pvt->context, user->context, sizeof(pvt->context) - 1);
|
|
}
|
|
pvt->exten[0] = 'i';
|
|
pvt->exten[1] = '\0';
|
|
ast_log(LOG_ERROR, "Call from '%s' rejected due to non-matching IP address (%s)s\n", user->name, cd->sourceIp);
|
|
return NULL; /* XXX: Hmmm... Why to setup context if we drop connection immediately??? */
|
|
}
|
|
}
|
|
strncpy(pvt->context, user->context, sizeof(pvt->context) - 1);
|
|
memcpy(&pvt->options, &user->options, sizeof(pvt->options));
|
|
if (!ast_strlen_zero(pvt->cd.call_dest_e164)) {
|
|
strncpy(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten) - 1);
|
|
} else {
|
|
strncpy(pvt->exten, cd->call_dest_alias, sizeof(pvt->exten) - 1);
|
|
}
|
|
if (!ast_strlen_zero(user->accountcode)) {
|
|
strncpy(pvt->accountcode, user->accountcode, sizeof(pvt->accountcode) - 1);
|
|
}
|
|
if (user->amaflags) {
|
|
pvt->amaflags = user->amaflags;
|
|
}
|
|
}
|
|
}
|
|
return &pvt->options;
|
|
}
|
|
|
|
/**
|
|
* Call-back function to start PBX when OpenH323 ready to serve incoming call
|
|
*
|
|
* Returns 1 on success
|
|
*/
|
|
static int answer_call(unsigned call_reference, const char *token)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
struct ast_channel *c = NULL;
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Preparing Asterisk to answer for %s\n", token);
|
|
|
|
/* Find the call or allocate a private structure if call not found */
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Something is wrong: answer_call\n");
|
|
return 0;
|
|
}
|
|
/* allocate a channel and tell asterisk about it */
|
|
c = __oh323_new(pvt, AST_STATE_RINGING, pvt->cd.call_token);
|
|
|
|
/* And release when done */
|
|
ast_mutex_unlock(&pvt->lock);
|
|
if (!c) {
|
|
ast_log(LOG_ERROR, "Couldn't create channel. This is bad\n");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Call-back function to establish an outgoing H.323 call
|
|
*
|
|
* Returns 1 on success
|
|
*/
|
|
int setup_outgoing_call(call_details_t *cd)
|
|
{
|
|
/* Use argument here or free it immediately */
|
|
cleanup_call_details(cd);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Call-back function to signal asterisk that the channel is ringing
|
|
* Returns nothing
|
|
*/
|
|
void chan_ringing(unsigned call_reference, const char *token)
|
|
{
|
|
struct ast_channel *c = NULL;
|
|
struct oh323_pvt *pvt;
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Ringing on %s\n", token);
|
|
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "Something is wrong: ringing\n");
|
|
return;
|
|
}
|
|
if (!pvt->owner) {
|
|
ast_mutex_unlock(&pvt->lock);
|
|
ast_log(LOG_ERROR, "Channel has no owner\n");
|
|
return;
|
|
}
|
|
if (update_state(pvt, AST_STATE_RINGING, AST_CONTROL_RINGING))
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
ast_mutex_unlock(&pvt->lock);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Call-back function to cleanup communication
|
|
* Returns nothing,
|
|
*/
|
|
static void cleanup_connection(unsigned call_reference, const char *call_token)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
|
|
ast_log(LOG_DEBUG, "Cleaning connection to %s\n", call_token);
|
|
|
|
while (1) {
|
|
pvt = find_call_locked(call_reference, call_token);
|
|
if (!pvt) {
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "No connection for %s\n", call_token);
|
|
return;
|
|
}
|
|
if (!pvt->owner || !ast_mutex_trylock(&pvt->owner->lock))
|
|
break;
|
|
#if 1
|
|
#ifdef DEBUG_THREADS
|
|
ast_log(LOG_NOTICE, "Avoiding H.323 destory deadlock on %s, locked at %ld/%d by %s (%s:%d)\n", call_token, pvt->owner->lock.thread, pvt->owner->lock.reentrancy, pvt->owner->lock.func, pvt->owner->lock.file, pvt->owner->lock.lineno);
|
|
#else
|
|
ast_log(LOG_NOTICE, "Avoiding H.323 destory deadlock on %s\n", call_token);
|
|
#endif
|
|
#endif
|
|
ast_mutex_unlock(&pvt->lock);
|
|
usleep(1);
|
|
}
|
|
if (pvt->rtp) {
|
|
/* Immediately stop RTP */
|
|
ast_rtp_destroy(pvt->rtp);
|
|
pvt->rtp = NULL;
|
|
}
|
|
/* Free dsp used for in-band DTMF detection */
|
|
if (pvt->vad) {
|
|
ast_dsp_free(pvt->vad);
|
|
pvt->vad = NULL;
|
|
}
|
|
cleanup_call_details(&pvt->cd);
|
|
pvt->alreadygone = 1;
|
|
/* Send hangup */
|
|
if (pvt->owner) {
|
|
pvt->owner->_softhangup |= AST_SOFTHANGUP_DEV;
|
|
ast_queue_hangup(pvt->owner);
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
}
|
|
ast_mutex_unlock(&pvt->lock);
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Connection to %s cleaned\n", call_token);
|
|
return;
|
|
}
|
|
|
|
static void hangup_connection(unsigned int call_reference, const char *token, int cause)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
|
|
ast_log(LOG_DEBUG, "Hanging up connection to %s with cause %d\n", token, cause);
|
|
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
return;
|
|
}
|
|
if (pvt->owner && !ast_mutex_trylock(&pvt->owner->lock)) {
|
|
pvt->owner->_softhangup |= AST_SOFTHANGUP_DEV;
|
|
pvt->owner->hangupcause = pvt->hangupcause = cause;
|
|
ast_queue_hangup(pvt->owner);
|
|
ast_mutex_unlock(&pvt->owner->lock);
|
|
}
|
|
else {
|
|
pvt->needhangup = 1;
|
|
pvt->hangupcause = cause;
|
|
ast_log(LOG_DEBUG, "Hangup for %s is pending\n", token);
|
|
}
|
|
ast_mutex_unlock(&pvt->lock);
|
|
}
|
|
|
|
void set_dtmf_payload(unsigned call_reference, const char *token, int payload)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Setting DTMF payload to %d on %s\n", payload, token);
|
|
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt) {
|
|
return;
|
|
}
|
|
if (pvt->rtp) {
|
|
ast_rtp_set_rtpmap_type(pvt->rtp, payload, "audio", "telephone-event");
|
|
}
|
|
ast_mutex_unlock(&pvt->lock);
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "DTMF payload on %s set to %d\n", token, payload);
|
|
}
|
|
|
|
static void set_local_capabilities(unsigned call_reference, const char *token)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
int capability, dtmfmode;
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Setting capabilities for connection %s\n", token);
|
|
|
|
pvt = find_call_locked(call_reference, token);
|
|
if (!pvt)
|
|
return;
|
|
capability = pvt->options.capability;
|
|
dtmfmode = pvt->options.dtmfmode;
|
|
ast_mutex_unlock(&pvt->lock);
|
|
h323_set_capabilities(token, capability, dtmfmode);
|
|
|
|
if (h323debug)
|
|
ast_log(LOG_DEBUG, "Capabilities for connection %s is set\n", token);
|
|
}
|
|
|
|
static void *do_monitor(void *data)
|
|
{
|
|
int res;
|
|
int reloading;
|
|
struct oh323_pvt *oh323 = NULL;
|
|
|
|
for(;;) {
|
|
/* Check for a reload request */
|
|
ast_mutex_lock(&h323_reload_lock);
|
|
reloading = h323_reloading;
|
|
h323_reloading = 0;
|
|
ast_mutex_unlock(&h323_reload_lock);
|
|
if (reloading) {
|
|
if (option_verbose > 0) {
|
|
ast_verbose(VERBOSE_PREFIX_1 "Reloading H.323\n");
|
|
}
|
|
h323_do_reload();
|
|
}
|
|
/* Check for interfaces needing to be killed */
|
|
ast_mutex_lock(&iflock);
|
|
restartsearch:
|
|
oh323 = iflist;
|
|
while(oh323) {
|
|
if (oh323->needdestroy) {
|
|
__oh323_destroy(oh323);
|
|
goto restartsearch;
|
|
}
|
|
oh323 = oh323->next;
|
|
}
|
|
ast_mutex_unlock(&iflock);
|
|
pthread_testcancel();
|
|
/* Wait for sched or io */
|
|
res = ast_sched_wait(sched);
|
|
if ((res < 0) || (res > 1000)) {
|
|
res = 1000;
|
|
}
|
|
res = ast_io_wait(io, res);
|
|
pthread_testcancel();
|
|
ast_mutex_lock(&monlock);
|
|
if (res >= 0) {
|
|
ast_sched_runq(sched);
|
|
}
|
|
ast_mutex_unlock(&monlock);
|
|
}
|
|
/* Never reached */
|
|
return NULL;
|
|
}
|
|
|
|
static int restart_monitor(void)
|
|
{
|
|
pthread_attr_t attr;
|
|
/* If we're supposed to be stopped -- stay stopped */
|
|
if (monitor_thread == AST_PTHREADT_STOP) {
|
|
return 0;
|
|
}
|
|
if (ast_mutex_lock(&monlock)) {
|
|
ast_log(LOG_WARNING, "Unable to lock monitor\n");
|
|
return -1;
|
|
}
|
|
if (monitor_thread == pthread_self()) {
|
|
ast_mutex_unlock(&monlock);
|
|
ast_log(LOG_WARNING, "Cannot kill myself\n");
|
|
return -1;
|
|
}
|
|
if (monitor_thread && (monitor_thread != AST_PTHREADT_NULL)) {
|
|
/* Wake up the thread */
|
|
pthread_kill(monitor_thread, SIGURG);
|
|
} else {
|
|
pthread_attr_init(&attr);
|
|
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
/* Start a new monitor */
|
|
if (ast_pthread_create(&monitor_thread, &attr, do_monitor, NULL) < 0) {
|
|
ast_mutex_unlock(&monlock);
|
|
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
|
|
return -1;
|
|
}
|
|
|
|
}
|
|
ast_mutex_unlock(&monlock);
|
|
return 0;
|
|
}
|
|
|
|
static int h323_do_trace(int fd, int argc, char *argv[])
|
|
{
|
|
if (argc != 3) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
h323_debug(1, atoi(argv[2]));
|
|
ast_cli(fd, "H.323 trace set to level %s\n", argv[2]);
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static int h323_no_trace(int fd, int argc, char *argv[])
|
|
{
|
|
if (argc != 3) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
h323_debug(0,0);
|
|
ast_cli(fd, "H.323 trace disabled\n");
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static int h323_do_debug(int fd, int argc, char *argv[])
|
|
{
|
|
if (argc != 2) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
h323debug = 1;
|
|
ast_cli(fd, "H323 debug enabled\n");
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static int h323_no_debug(int fd, int argc, char *argv[])
|
|
{
|
|
if (argc != 3) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
h323debug = 0;
|
|
ast_cli(fd, "H323 Debug disabled\n");
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static int h323_gk_cycle(int fd, int argc, char *argv[])
|
|
{
|
|
#if 0
|
|
if (argc != 3) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
h323_gk_urq();
|
|
|
|
/* Possibly register with a GK */
|
|
if (!gatekeeper_disable) {
|
|
if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) {
|
|
ast_log(LOG_ERROR, "Gatekeeper registration failed.\n");
|
|
}
|
|
}
|
|
#endif
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static int h323_ep_hangup(int fd, int argc, char *argv[])
|
|
{
|
|
if (argc != 3) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
if (h323_soft_hangup(argv[2])) {
|
|
ast_verbose(VERBOSE_PREFIX_3 "Hangup succeeded on %s\n", argv[2]);
|
|
} else {
|
|
ast_verbose(VERBOSE_PREFIX_3 "Hangup failed for %s\n", argv[2]);
|
|
}
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static int h323_tokens_show(int fd, int argc, char *argv[])
|
|
{
|
|
if (argc != 3) {
|
|
return RESULT_SHOWUSAGE;
|
|
}
|
|
h323_show_tokens();
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static char trace_usage[] =
|
|
"Usage: h.323 trace <level num>\n"
|
|
" Enables H.323 stack tracing for debugging purposes\n";
|
|
|
|
static char no_trace_usage[] =
|
|
"Usage: h.323 no trace\n"
|
|
" Disables H.323 stack tracing for debugging purposes\n";
|
|
|
|
static char debug_usage[] =
|
|
"Usage: h.323 debug\n"
|
|
" Enables H.323 debug output\n";
|
|
|
|
static char no_debug_usage[] =
|
|
"Usage: h.323 no debug\n"
|
|
" Disables H.323 debug output\n";
|
|
|
|
static char show_codec_usage[] =
|
|
"Usage: h.323 show codec\n"
|
|
" Shows all enabled codecs\n";
|
|
|
|
static char show_cycle_usage[] =
|
|
"Usage: h.323 gk cycle\n"
|
|
" Manually re-register with the Gatekeper (Currently Disabled)\n";
|
|
|
|
static char show_hangup_usage[] =
|
|
"Usage: h.323 hangup <token>\n"
|
|
" Manually try to hang up call identified by <token>\n";
|
|
|
|
static char show_tokens_usage[] =
|
|
"Usage: h.323 show tokens\n"
|
|
" Print out all active call tokens\n";
|
|
|
|
static char h323_reload_usage[] =
|
|
"Usage: h323 reload\n"
|
|
" Reloads H.323 configuration from sip.conf\n";
|
|
|
|
static struct ast_cli_entry cli_trace =
|
|
{ { "h.323", "trace", NULL }, h323_do_trace, "Enable H.323 Stack Tracing", trace_usage };
|
|
static struct ast_cli_entry cli_no_trace =
|
|
{ { "h.323", "no", "trace", NULL }, h323_no_trace, "Disable H.323 Stack Tracing", no_trace_usage };
|
|
static struct ast_cli_entry cli_debug =
|
|
{ { "h.323", "debug", NULL }, h323_do_debug, "Enable H.323 debug", debug_usage };
|
|
static struct ast_cli_entry cli_no_debug =
|
|
{ { "h.323", "no", "debug", NULL }, h323_no_debug, "Disable H.323 debug", no_debug_usage };
|
|
static struct ast_cli_entry cli_show_codecs =
|
|
{ { "h.323", "show", "codecs", NULL }, h323_show_codec, "Show enabled codecs", show_codec_usage };
|
|
static struct ast_cli_entry cli_gk_cycle =
|
|
{ { "h.323", "gk", "cycle", NULL }, h323_gk_cycle, "Manually re-register with the Gatekeper", show_cycle_usage };
|
|
static struct ast_cli_entry cli_hangup_call =
|
|
{ { "h.323", "hangup", NULL }, h323_ep_hangup, "Manually try to hang up a call", show_hangup_usage };
|
|
static struct ast_cli_entry cli_show_tokens =
|
|
{ { "h.323", "show", "tokens", NULL }, h323_tokens_show, "Show all active call tokens", show_tokens_usage };
|
|
|
|
static int update_common_options(struct ast_variable *v, struct call_options *options)
|
|
{
|
|
unsigned int format;
|
|
int tmp;
|
|
|
|
if (!strcasecmp(v->name, "allow")) {
|
|
format = ast_getformatbyname(v->value);
|
|
if (format < 1)
|
|
ast_log(LOG_WARNING, "Cannot allow unknown format '%s'\n", v->value);
|
|
else
|
|
options->capability |= format;
|
|
} else if (!strcasecmp(v->name, "disallow")) {
|
|
format = ast_getformatbyname(v->value);
|
|
if (format < 1)
|
|
ast_log(LOG_WARNING, "Cannot disallow unknown format '%s'\n", v->value);
|
|
else
|
|
options->capability &= ~format;
|
|
} else if (!strcasecmp(v->name, "dtmfmode")) {
|
|
if (!strcasecmp(v->value, "inband")) {
|
|
options->dtmfmode = H323_DTMF_INBAND;
|
|
} else if (!strcasecmp(v->value, "rfc2833")) {
|
|
options->dtmfmode = H323_DTMF_RFC2833;
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unknown dtmf mode '%s', using rfc2833\n", v->value);
|
|
options->dtmfmode = H323_DTMF_RFC2833;
|
|
}
|
|
} else if (!strcasecmp(v->name, "dtmfcodec")) {
|
|
tmp = atoi(v->value);
|
|
if (tmp < 96)
|
|
ast_log(LOG_WARNING, "Invalid global dtmfcodec value %s\n", v->value);
|
|
else
|
|
options->dtmfcodec = tmp;
|
|
} else if (!strcasecmp(v->name, "bridge")) {
|
|
options->bridge = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "nat")) {
|
|
options->nat = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "noFastStart")) {
|
|
options->noFastStart = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "noH245Tunneling")) {
|
|
options->noH245Tunneling = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "noSilenceSuppression")) {
|
|
options->noSilenceSuppression = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "progress_setup")) {
|
|
tmp = atoi(v->value);
|
|
if ((tmp != 0) && (tmp != 1) && (tmp != 3) && (tmp != 8)) {
|
|
ast_log(LOG_WARNING, "Invalid value %d for progress_setup at line %d, assuming 0\n", tmp, v->lineno);
|
|
tmp = 0;
|
|
}
|
|
options->progress_setup = tmp;
|
|
} else if (!strcasecmp(v->name, "progress_alert")) {
|
|
tmp = atoi(v->value);
|
|
if ((tmp != 0) && (tmp != 8)) {
|
|
ast_log(LOG_WARNING, "Invalud value %d for progress_alert at line %d, assuming 0\n", tmp, v->lineno);
|
|
tmp = 0;
|
|
}
|
|
options->progress_alert = tmp;
|
|
} else if (!strcasecmp(v->name, "progress_audio")) {
|
|
options->progress_audio = ast_true(v->value);
|
|
} else
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct oh323_alias *build_alias(char *name, struct ast_variable *v)
|
|
{
|
|
struct oh323_alias *alias;
|
|
|
|
alias = (struct oh323_alias *)malloc(sizeof(struct oh323_alias));
|
|
if (alias) {
|
|
memset(alias, 0, sizeof(struct oh323_alias));
|
|
strncpy(alias->name, name, sizeof(alias->name) - 1);
|
|
while (v) {
|
|
if (!strcasecmp(v->name, "e164")) {
|
|
strncpy(alias->e164, v->value, sizeof(alias->e164) - 1);
|
|
} else if (!strcasecmp(v->name, "prefix")) {
|
|
strncpy(alias->prefix, v->value, sizeof(alias->prefix) - 1);
|
|
} else if (!strcasecmp(v->name, "context")) {
|
|
strncpy(alias->context, v->value, sizeof(alias->context) - 1);
|
|
} else if (!strcasecmp(v->name, "secret")) {
|
|
strncpy(alias->secret, v->value, sizeof(alias->secret) - 1);
|
|
} else {
|
|
if (strcasecmp(v->value, "h323")) {
|
|
ast_log(LOG_WARNING, "Keyword %s does not make sense in type=h323\n", v->value);
|
|
}
|
|
}
|
|
v = v->next;
|
|
}
|
|
}
|
|
return alias;
|
|
}
|
|
|
|
static struct oh323_user *build_user(char *name, struct ast_variable *v)
|
|
{
|
|
struct oh323_user *user;
|
|
int format;
|
|
|
|
user = (struct oh323_user *)malloc(sizeof(struct oh323_user));
|
|
if (user) {
|
|
memset(user, 0, sizeof(struct oh323_user));
|
|
strncpy(user->name, name, sizeof(user->name) - 1);
|
|
memcpy(&user->options, &global_options, sizeof(user->options));
|
|
/* Set default context */
|
|
strncpy(user->context, default_context, sizeof(user->context) - 1);
|
|
while(v) {
|
|
if (!strcasecmp(v->name, "context")) {
|
|
strncpy(user->context, v->value, sizeof(user->context) - 1);
|
|
} else if (!update_common_options(v, &user->options)) {
|
|
/* dummy */
|
|
} else if (!strcasecmp(v->name, "secret")) {
|
|
strncpy(user->secret, v->value, sizeof(user->secret) - 1);
|
|
} else if (!strcasecmp(v->name, "callerid")) {
|
|
strncpy(user->callerid, v->value, sizeof(user->callerid) - 1);
|
|
} else if (!strcasecmp(v->name, "accountcode")) {
|
|
strncpy(user->accountcode, v->value, sizeof(user->accountcode) - 1);
|
|
} else if (!strcasecmp(v->name, "host")) {
|
|
if (!strcasecmp(v->value, "dynamic")) {
|
|
ast_log(LOG_ERROR, "A dynamic host on a type=user does not make any sense\n");
|
|
free(user);
|
|
return NULL;
|
|
} else if (ast_get_ip(&user->addr, v->value)) {
|
|
free(user);
|
|
return NULL;
|
|
}
|
|
/* Let us know we need to use ip authentication */
|
|
user->host = 1;
|
|
} else if (!strcasecmp(v->name, "amaflags")) {
|
|
format = ast_cdr_amaflags2int(v->value);
|
|
if (format < 0) {
|
|
ast_log(LOG_WARNING, "Invalid AMA Flags: %s at line %d\n", v->value, v->lineno);
|
|
} else {
|
|
user->amaflags = format;
|
|
}
|
|
}
|
|
v = v->next;
|
|
}
|
|
}
|
|
return user;
|
|
}
|
|
|
|
static struct oh323_peer *build_peer(char *name, struct ast_variable *v)
|
|
{
|
|
struct oh323_peer *peer;
|
|
struct oh323_peer *prev;
|
|
struct ast_ha *oldha = NULL;
|
|
int found=0;
|
|
|
|
prev = NULL;
|
|
ast_mutex_lock(&peerl.lock);
|
|
peer = peerl.peers;
|
|
|
|
while(peer) {
|
|
if (!strcasecmp(peer->name, name)) {
|
|
break;
|
|
}
|
|
prev = peer;
|
|
peer = peer->next;
|
|
}
|
|
|
|
if (peer) {
|
|
found++;
|
|
/* Already in the list, remove it and it will be added back (or FREE'd) */
|
|
if (prev) {
|
|
prev->next = peer->next;
|
|
} else {
|
|
peerl.peers = peer->next;
|
|
}
|
|
ast_mutex_unlock(&peerl.lock);
|
|
} else {
|
|
ast_mutex_unlock(&peerl.lock);
|
|
peer = (struct oh323_peer*)malloc(sizeof(struct oh323_peer));
|
|
if (peer)
|
|
memset(peer, 0, sizeof(struct oh323_peer));
|
|
}
|
|
if (peer) {
|
|
if (!found) {
|
|
strncpy(peer->name, name, sizeof(peer->name) - 1);
|
|
peer->addr.sin_port = htons(h323_signalling_port);
|
|
peer->addr.sin_family = AF_INET;
|
|
}
|
|
oldha = peer->ha;
|
|
peer->ha = NULL;
|
|
peer->addr.sin_family = AF_INET;
|
|
memcpy(&peer->options, &global_options, sizeof(peer->options));
|
|
|
|
while(v) {
|
|
if (!update_common_options(v, &peer->options)) {
|
|
/* dummy */
|
|
} else if (!strcasecmp(v->name, "host")) {
|
|
if (!strcasecmp(v->value, "dynamic")) {
|
|
ast_log(LOG_ERROR, "Dynamic host configuration not implemented.\n");
|
|
free(peer);
|
|
return NULL;
|
|
}
|
|
if (ast_get_ip(&peer->addr, v->value)) {
|
|
ast_log(LOG_ERROR, "Could not determine IP for %s\n", v->value);
|
|
free(peer);
|
|
return NULL;
|
|
}
|
|
} else if (!strcasecmp(v->name, "port")) {
|
|
peer->addr.sin_port = htons(atoi(v->value));
|
|
}
|
|
v=v->next;
|
|
}
|
|
}
|
|
return peer;
|
|
}
|
|
|
|
int reload_config(void)
|
|
{
|
|
int format;
|
|
struct ast_config *cfg;
|
|
struct ast_variable *v;
|
|
struct oh323_peer *peer = NULL;
|
|
struct oh323_user *user = NULL;
|
|
struct oh323_alias *alias = NULL;
|
|
struct ast_hostent ahp; struct hostent *hp;
|
|
char *cat;
|
|
char *utype;
|
|
|
|
cfg = ast_config_load(config);
|
|
|
|
/* We *must* have a config file otherwise stop immediately */
|
|
if (!cfg) {
|
|
ast_log(LOG_NOTICE, "Unable to load config %s, H.323 disabled\n", config);
|
|
return 1;
|
|
}
|
|
|
|
/* fire up the H.323 Endpoint */
|
|
if (!h323_end_point_exist()) {
|
|
h323_end_point_create();
|
|
}
|
|
h323debug = 0;
|
|
memset(&bindaddr, 0, sizeof(bindaddr));
|
|
memset(&global_options, 0, sizeof(global_options));
|
|
global_options.dtmfcodec = 101;
|
|
global_options.dtmfmode = H323_DTMF_RFC2833;
|
|
global_options.capability = ~0; /* All capabilities */
|
|
global_options.bridge = 1; /* Do native bridging by default */
|
|
v = ast_variable_browse(cfg, "general");
|
|
while(v) {
|
|
/* Create the interface list */
|
|
if (!strcasecmp(v->name, "port")) {
|
|
h323_signalling_port = (int)strtol(v->value, NULL, 10);
|
|
} else if (!strcasecmp(v->name, "bindaddr")) {
|
|
if (!(hp = ast_gethostbyname(v->value, &ahp))) {
|
|
ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
|
|
} else {
|
|
memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
|
|
}
|
|
} else if (!strcasecmp(v->name, "tos")) {
|
|
if (sscanf(v->value, "%d", &format)) {
|
|
tos = format & 0xff;
|
|
} else if (!strcasecmp(v->value, "lowdelay")) {
|
|
tos = IPTOS_LOWDELAY;
|
|
} else if (!strcasecmp(v->value, "throughput")) {
|
|
tos = IPTOS_THROUGHPUT;
|
|
} else if (!strcasecmp(v->value, "reliability")) {
|
|
tos = IPTOS_RELIABILITY;
|
|
} else if (!strcasecmp(v->value, "mincost")) {
|
|
tos = IPTOS_MINCOST;
|
|
} else if (!strcasecmp(v->value, "none")) {
|
|
tos = 0;
|
|
} else {
|
|
ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno);
|
|
}
|
|
} else if (!strcasecmp(v->name, "gatekeeper")) {
|
|
if (!strcasecmp(v->value, "DISABLE")) {
|
|
gatekeeper_disable = 1;
|
|
usingGk = 0;
|
|
} else if (!strcasecmp(v->value, "DISCOVER")) {
|
|
gatekeeper_disable = 0;
|
|
gatekeeper_discover = 1;
|
|
usingGk = 1;
|
|
} else {
|
|
gatekeeper_disable = 0;
|
|
usingGk = 1;
|
|
strncpy(gatekeeper, v->value, sizeof(gatekeeper) - 1);
|
|
}
|
|
} else if (!strcasecmp(v->name, "secret")) {
|
|
strncpy(secret, v->value, sizeof(secret) - 1);
|
|
} else if (!strcasecmp(v->name, "AllowGKRouted")) {
|
|
gkroute = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "context")) {
|
|
strncpy(default_context, v->value, sizeof(default_context) - 1);
|
|
ast_verbose(VERBOSE_PREFIX_2 "Setting default context to %s\n", default_context);
|
|
} else if (!strcasecmp(v->name, "UserByAlias")) {
|
|
userbyalias = ast_true(v->value);
|
|
} else if (!update_common_options(v, &global_options)) {
|
|
/* dummy */
|
|
}
|
|
v = v->next;
|
|
}
|
|
|
|
cat = ast_category_browse(cfg, NULL);
|
|
while(cat) {
|
|
if (strcasecmp(cat, "general")) {
|
|
utype = ast_variable_retrieve(cfg, cat, "type");
|
|
if (utype) {
|
|
if (!strcasecmp(utype, "user")) {
|
|
user = build_user(cat, ast_variable_browse(cfg, cat));
|
|
if (user) {
|
|
ast_mutex_lock(&userl.lock);
|
|
user->next = userl.users;
|
|
userl.users = user;
|
|
ast_mutex_unlock(&userl.lock);
|
|
}
|
|
} else if (!strcasecmp(utype, "peer")) {
|
|
peer = build_peer(cat, ast_variable_browse(cfg, cat));
|
|
if (peer) {
|
|
ast_mutex_lock(&peerl.lock);
|
|
peer->next = peerl.peers;
|
|
peerl.peers = peer;
|
|
ast_mutex_unlock(&peerl.lock);
|
|
}
|
|
} else if (!strcasecmp(utype, "friend")) {
|
|
user = build_user(cat, ast_variable_browse(cfg, cat));
|
|
peer = build_peer(cat, ast_variable_browse(cfg, cat));
|
|
if (user) {
|
|
ast_mutex_lock(&userl.lock);
|
|
user->next = userl.users;
|
|
userl.users = user;
|
|
ast_mutex_unlock(&userl.lock);
|
|
}
|
|
if (peer) {
|
|
ast_mutex_lock(&peerl.lock);
|
|
peer->next = peerl.peers;
|
|
peerl.peers = peer;
|
|
ast_mutex_unlock(&peerl.lock);
|
|
}
|
|
} else if (!strcasecmp(utype, "h323") || !strcasecmp(utype, "alias")) {
|
|
alias = build_alias(cat, ast_variable_browse(cfg, cat));
|
|
if (alias) {
|
|
ast_mutex_lock(&aliasl.lock);
|
|
alias->next = aliasl.aliases;
|
|
aliasl.aliases = alias;
|
|
ast_mutex_unlock(&aliasl.lock);
|
|
}
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unknown type '%s' for '%s' in %s\n", utype, cat, config);
|
|
}
|
|
} else {
|
|
ast_log(LOG_WARNING, "Section '%s' lacks type\n", cat);
|
|
}
|
|
}
|
|
cat = ast_category_browse(cfg, cat);
|
|
}
|
|
ast_config_destroy(cfg);
|
|
|
|
/* Register our H.323 aliases if any*/
|
|
while (alias) {
|
|
if (h323_set_alias(alias)) {
|
|
ast_log(LOG_ERROR, "Alias %s rejected by endpoint\n", alias->name);
|
|
return -1;
|
|
}
|
|
alias = alias->next;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void delete_users(void)
|
|
{
|
|
struct oh323_user *user, *userlast;
|
|
struct oh323_peer *peer;
|
|
|
|
/* Delete all users */
|
|
ast_mutex_lock(&userl.lock);
|
|
for (user=userl.users;user;) {
|
|
userlast = user;
|
|
user=user->next;
|
|
free(userlast);
|
|
}
|
|
userl.users=NULL;
|
|
ast_mutex_unlock(&userl.lock);
|
|
ast_mutex_lock(&peerl.lock);
|
|
for (peer=peerl.peers;peer;) {
|
|
/* Assume all will be deleted, and we'll find out for sure later */
|
|
peer->delme = 1;
|
|
peer = peer->next;
|
|
}
|
|
ast_mutex_unlock(&peerl.lock);
|
|
}
|
|
|
|
void delete_aliases(void)
|
|
{
|
|
struct oh323_alias *alias, *aliaslast;
|
|
|
|
/* Delete all users */
|
|
ast_mutex_lock(&aliasl.lock);
|
|
for (alias=aliasl.aliases;alias;) {
|
|
aliaslast = alias;
|
|
alias=alias->next;
|
|
free(aliaslast);
|
|
}
|
|
aliasl.aliases=NULL;
|
|
ast_mutex_unlock(&aliasl.lock);
|
|
}
|
|
|
|
void prune_peers(void)
|
|
{
|
|
/* Prune peers who still are supposed to be deleted */
|
|
struct oh323_peer *peer, *peerlast, *peernext;
|
|
ast_mutex_lock(&peerl.lock);
|
|
peerlast = NULL;
|
|
for (peer=peerl.peers;peer;) {
|
|
peernext = peer->next;
|
|
if (peer->delme) {
|
|
free(peer);
|
|
if (peerlast) {
|
|
peerlast->next = peernext;
|
|
} else {
|
|
peerl.peers = peernext;
|
|
}
|
|
} else {
|
|
peerlast = peer;
|
|
}
|
|
peer = peernext;
|
|
}
|
|
ast_mutex_unlock(&peerl.lock);
|
|
}
|
|
|
|
static int h323_reload(int fd, int argc, char *argv[])
|
|
{
|
|
ast_mutex_lock(&h323_reload_lock);
|
|
if (h323_reloading) {
|
|
ast_verbose("Previous H.323 reload not yet done\n");
|
|
} else {
|
|
h323_reloading = 1;
|
|
}
|
|
ast_mutex_unlock(&h323_reload_lock);
|
|
restart_monitor();
|
|
return 0;
|
|
}
|
|
|
|
static int h323_do_reload(void)
|
|
{
|
|
delete_users();
|
|
delete_aliases();
|
|
prune_peers();
|
|
reload_config();
|
|
restart_monitor();
|
|
return 0;
|
|
}
|
|
|
|
int reload(void)
|
|
{
|
|
return h323_reload(0, 0, NULL);
|
|
}
|
|
|
|
static struct ast_cli_entry cli_h323_reload =
|
|
{ { "h.323", "reload", NULL }, h323_reload, "Reload H.323 configuration", h323_reload_usage };
|
|
|
|
static struct ast_rtp *oh323_get_rtp_peer(struct ast_channel *chan)
|
|
{
|
|
struct oh323_pvt *pvt;
|
|
pvt = (struct oh323_pvt *) chan->tech_pvt;
|
|
if (pvt && pvt->rtp && pvt->options.bridge) {
|
|
return pvt->rtp;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static struct ast_rtp *oh323_get_vrtp_peer(struct ast_channel *chan)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static char *convertcap(int cap)
|
|
{
|
|
switch (cap) {
|
|
case AST_FORMAT_G723_1:
|
|
return "G.723";
|
|
case AST_FORMAT_GSM:
|
|
return "GSM";
|
|
case AST_FORMAT_ULAW:
|
|
return "ULAW";
|
|
case AST_FORMAT_ALAW:
|
|
return "ALAW";
|
|
case AST_FORMAT_ADPCM:
|
|
return "G.728";
|
|
case AST_FORMAT_G729A:
|
|
return "G.729";
|
|
case AST_FORMAT_SPEEX:
|
|
return "SPEEX";
|
|
case AST_FORMAT_ILBC:
|
|
return "ILBC";
|
|
default:
|
|
ast_log(LOG_NOTICE, "Don't know how to deal with mode %d\n", cap);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static int oh323_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs)
|
|
{
|
|
/* XXX Deal with Video */
|
|
struct oh323_pvt *pvt;
|
|
struct sockaddr_in them;
|
|
struct sockaddr_in us;
|
|
char *mode;
|
|
char iabuf[INET_ADDRSTRLEN];
|
|
|
|
if (!rtp) {
|
|
return 0;
|
|
}
|
|
|
|
mode = convertcap(chan->writeformat);
|
|
pvt = (struct oh323_pvt *) chan->tech_pvt;
|
|
if (!pvt) {
|
|
ast_log(LOG_ERROR, "No Private Structure, this is bad\n");
|
|
return -1;
|
|
}
|
|
ast_rtp_get_peer(rtp, &them);
|
|
ast_rtp_get_us(rtp, &us);
|
|
h323_native_bridge(pvt->cd.call_token, ast_inet_ntoa(iabuf, sizeof(iabuf), them.sin_addr), mode);
|
|
return 0;
|
|
}
|
|
|
|
static struct ast_rtp_protocol oh323_rtp = {
|
|
.type = type,
|
|
.get_rtp_info = oh323_get_rtp_peer,
|
|
.get_vrtp_info = oh323_get_vrtp_peer,
|
|
.set_rtp_peer= oh323_set_rtp_peer,
|
|
};
|
|
|
|
int load_module()
|
|
{
|
|
int res;
|
|
ast_mutex_init(&userl.lock);
|
|
ast_mutex_init(&peerl.lock);
|
|
ast_mutex_init(&aliasl.lock);
|
|
sched = sched_context_create();
|
|
if (!sched) {
|
|
ast_log(LOG_WARNING, "Unable to create schedule context\n");
|
|
}
|
|
io = io_context_create();
|
|
if (!io) {
|
|
ast_log(LOG_WARNING, "Unable to create I/O context\n");
|
|
}
|
|
res = reload_config();
|
|
if (res) {
|
|
return 0;
|
|
} else {
|
|
/* Make sure we can register our channel type */
|
|
if (ast_channel_register(&oh323_tech)) {
|
|
ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
|
|
h323_end_process();
|
|
return -1;
|
|
}
|
|
ast_cli_register(&cli_debug);
|
|
ast_cli_register(&cli_no_debug);
|
|
ast_cli_register(&cli_trace);
|
|
ast_cli_register(&cli_no_trace);
|
|
ast_cli_register(&cli_show_codecs);
|
|
ast_cli_register(&cli_gk_cycle);
|
|
ast_cli_register(&cli_hangup_call);
|
|
ast_cli_register(&cli_show_tokens);
|
|
ast_cli_register(&cli_h323_reload);
|
|
|
|
ast_rtp_proto_register(&oh323_rtp);
|
|
|
|
/* Register our callback functions */
|
|
h323_callback_register(setup_incoming_call,
|
|
setup_outgoing_call,
|
|
external_rtp_create,
|
|
setup_rtp_connection,
|
|
cleanup_connection,
|
|
chan_ringing,
|
|
connection_made,
|
|
send_digit,
|
|
answer_call,
|
|
progress,
|
|
set_dtmf_payload,
|
|
hangup_connection,
|
|
set_local_capabilities);
|
|
/* start the h.323 listener */
|
|
if (h323_start_listener(h323_signalling_port, bindaddr)) {
|
|
ast_log(LOG_ERROR, "Unable to create H323 listener.\n");
|
|
return -1;
|
|
}
|
|
/* Possibly register with a GK */
|
|
if (!gatekeeper_disable) {
|
|
if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) {
|
|
ast_log(LOG_ERROR, "Gatekeeper registration failed.\n");
|
|
return 0;
|
|
}
|
|
}
|
|
/* And start the monitor for the first time */
|
|
restart_monitor();
|
|
}
|
|
return res;
|
|
}
|
|
|
|
int unload_module()
|
|
{
|
|
struct oh323_pvt *p, *pl;
|
|
|
|
/* unregister commands */
|
|
ast_cli_unregister(&cli_debug);
|
|
ast_cli_unregister(&cli_no_debug);
|
|
ast_cli_unregister(&cli_trace);
|
|
ast_cli_unregister(&cli_no_trace);
|
|
ast_cli_unregister(&cli_show_codecs);
|
|
ast_cli_unregister(&cli_gk_cycle);
|
|
ast_cli_unregister(&cli_hangup_call);
|
|
ast_cli_unregister(&cli_show_tokens);
|
|
ast_cli_unregister(&cli_h323_reload);
|
|
ast_rtp_proto_unregister(&oh323_rtp);
|
|
ast_channel_unregister(&oh323_tech);
|
|
|
|
if (!ast_mutex_lock(&iflock)) {
|
|
/* hangup all interfaces if they have an owner */
|
|
p = iflist;
|
|
while(p) {
|
|
if (p->owner) {
|
|
ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
|
|
}
|
|
p = p->next;
|
|
}
|
|
iflist = NULL;
|
|
ast_mutex_unlock(&iflock);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unable to lock the interface list\n");
|
|
return -1;
|
|
}
|
|
if (!ast_mutex_lock(&monlock)) {
|
|
if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP)) {
|
|
/* this causes a seg, anyone know why? */
|
|
pthread_cancel(monitor_thread);
|
|
pthread_kill(monitor_thread, SIGURG);
|
|
pthread_join(monitor_thread, NULL);
|
|
}
|
|
monitor_thread = AST_PTHREADT_STOP;
|
|
ast_mutex_unlock(&monlock);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unable to lock the monitor\n");
|
|
return -1;
|
|
}
|
|
if (!ast_mutex_lock(&iflock)) {
|
|
/* destroy all the interfaces and free their memory */
|
|
p = iflist;
|
|
while(p) {
|
|
pl = p;
|
|
p = p->next;
|
|
/* free associated memory */
|
|
ast_mutex_destroy(&pl->lock);
|
|
free(pl);
|
|
}
|
|
iflist = NULL;
|
|
ast_mutex_unlock(&iflock);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unable to lock the interface list\n");
|
|
return -1;
|
|
}
|
|
h323_gk_urq();
|
|
h323_end_process();
|
|
io_context_destroy(io);
|
|
sched_context_destroy(sched);
|
|
delete_users();
|
|
delete_aliases();
|
|
prune_peers();
|
|
ast_mutex_destroy(&aliasl.lock);
|
|
ast_mutex_destroy(&userl.lock);
|
|
ast_mutex_destroy(&peerl.lock);
|
|
return 0;
|
|
}
|
|
|
|
int usecount()
|
|
{
|
|
return usecnt;
|
|
}
|
|
|
|
char *description()
|
|
{
|
|
return (char *) desc;
|
|
}
|
|
|
|
char *key()
|
|
{
|
|
return ASTERISK_GPL_KEY;
|
|
}
|