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Last updated: Sat Feb 3 05:01:04 2007

Asterisk developer's documentation :: Codename Pineapple

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chan_h323.c File Reference

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Detailed Description

This file is part of the chan_h323 driver for Asterisk.

Author:

Jeremy McNamara

See also

• Config_h323

Definition in file chan_h323.c.

#include "asterisk.h"
#include <sys/socket.h>
#include <sys/signal.h>
#include <sys/param.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <unistd.h>
#include <stdlib.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include "asterisk/lock.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/musiconhold.h"
#include "asterisk/pbx.h"
#include "asterisk/options.h"
#include "asterisk/utils.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/rtp.h"
#include "asterisk/acl.h"
#include "asterisk/callerid.h"
#include "asterisk/cli.h"
#include "asterisk/dsp.h"
#include "asterisk/causes.h"
#include "asterisk/stringfields.h"
#include "asterisk/abstract_jb.h"
#include "asterisk/astobj.h"
#include "h323/chan_h323.h"

Include dependency graph for chan_h323.c:

Go to the source code of this file.

Data Structures
struct	ast_alias_list
struct	ast_peer_list
	The peer list: Peers and Friends. More...
struct	ast_user_list
	The user list: Users and friends. More...
struct	oh323_pvt
struct	rtpPayloadType
	Structure representing a RTP session.The value of each payload format mapping:. More...
Defines
#define	GLOBAL_CAPABILITY   (AST_FORMAT_G723_1 | AST_FORMAT_GSM | AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_G729A | AST_FORMAT_G726_AAL2 | AST_FORMAT_H261)
Functions
static void	__oh323_destroy (struct oh323_pvt *pvt)
static struct ast_channel *	__oh323_new (struct oh323_pvt *pvt, int state, const char *host)
static int	__oh323_rtp_create (struct oh323_pvt *pvt)
static void	__oh323_update_info (struct ast_channel *c, struct oh323_pvt *pvt)
static int	answer_call (unsigned call_reference, const char *token)
	AST_MODULE_INFO (ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT,"The NuFone Network's OpenH323 Channel Driver",.load=load_module,.unload=unload_module,.reload=reload,)
	AST_MUTEX_DEFINE_STATIC (h323_reload_lock)
	AST_MUTEX_DEFINE_STATIC (caplock)
	AST_MUTEX_DEFINE_STATIC (monlock)
	AST_MUTEX_DEFINE_STATIC (iflock)
static struct oh323_alias *	build_alias (const char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static struct oh323_peer *	build_peer (const char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static struct oh323_user *	build_user (char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static void	chan_ringing (unsigned call_reference, const char *token)
static void	cleanup_call_details (call_details_t *cd)
static void	cleanup_connection (unsigned call_reference, const char *call_token)
static void	connection_made (unsigned call_reference, const char *token)
static char *	convertcap (int cap)
static int	create_addr (struct oh323_pvt *pvt, char *opeer)
static void	delete_aliases (void)
static void	delete_users (void)
static void *	do_monitor (void *data)
static struct rtp_info *	external_rtp_create (unsigned call_reference, const char *token)
static struct oh323_alias *	find_alias (const char *source_aliases, int realtime)
static struct oh323_pvt *	find_call_locked (int call_reference, const char *token)
static struct oh323_peer *	find_peer (const char *peer, struct sockaddr_in *sin, int realtime)
static struct oh323_user *	find_user (const call_details_t *cd, int realtime)
static int	h323_do_debug (int fd, int argc, char *argv[])
static int	h323_do_reload (void)
static int	h323_do_trace (int fd, int argc, char *argv[])
static int	h323_ep_hangup (int fd, int argc, char *argv[])
static int	h323_gk_cycle (int fd, int argc, char *argv[])
static int	h323_no_debug (int fd, int argc, char *argv[])
static int	h323_no_trace (int fd, int argc, char *argv[])
static int	h323_reload (int fd, int argc, char *argv[])
static int	h323_tokens_show (int fd, int argc, char *argv[])
static void	hangup_connection (unsigned int call_reference, const char *token, int cause)
static enum ast_module_load_result	load_module (void)
static int	oh323_addrcmp (struct sockaddr_in addr, struct sockaddr_in *sin)
static int	oh323_addrcmp_str (struct in_addr inaddr, char *addr)
static struct oh323_pvt *	oh323_alloc (int callid)
static int	oh323_answer (struct ast_channel *c)
static int	oh323_call (struct ast_channel *c, char *dest, int timeout)
static void	oh323_destroy (struct oh323_pvt *pvt)
static void	oh323_destroy_alias (struct oh323_alias *alias)
static void	oh323_destroy_peer (struct oh323_peer *peer)
static void	oh323_destroy_user (struct oh323_user *user)
static int	oh323_digit_begin (struct ast_channel *c, char digit)
static int	oh323_digit_end (struct ast_channel *c, char digit, unsigned int duration)
static int	oh323_fixup (struct ast_channel *oldchan, struct ast_channel *newchan)
static enum ast_rtp_get_result	oh323_get_rtp_peer (struct ast_channel *chan, struct ast_rtp **rtp)
static enum ast_rtp_get_result	oh323_get_vrtp_peer (struct ast_channel *chan, struct ast_rtp **rtp)
static int	oh323_hangup (struct ast_channel *c)
static int	oh323_indicate (struct ast_channel *c, int condition, const void *data, size_t datalen)
static struct ast_frame *	oh323_read (struct ast_channel *c)
static struct ast_channel *	oh323_request (const char *type, int format, void *data, int *cause)
static struct ast_frame *	oh323_rtp_read (struct oh323_pvt *pvt)
static int	oh323_set_rtp_peer (struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active)
static int	oh323_simulate_dtmf_end (void *data)
static void	oh323_update_info (struct ast_channel *c)
static int	oh323_write (struct ast_channel *c, struct ast_frame *frame)
static int	progress (unsigned call_reference, const char *token, int inband)
static void	prune_peers (void)
static struct oh323_alias *	realtime_alias (const char *alias)
static struct oh323_peer *	realtime_peer (const char *peername, struct sockaddr_in *sin)
static struct oh323_user *	realtime_user (const call_details_t *cd)
static int	receive_digit (unsigned call_reference, char digit, const char *token, int duration)
static const char *	redirectingreason2str (int redirectingreason)
static int	reload (void)
static int	reload_config (int is_reload)
static void	remote_hold (unsigned call_reference, const char *token, int is_hold)
static int	restart_monitor (void)
	Start the channel monitor thread.
static void	set_dtmf_payload (unsigned call_reference, const char *token, int payload, int is_cisco)
static void	set_local_capabilities (unsigned call_reference, const char *token)
static void	set_peer_capabilities (unsigned call_reference, const char *token, int capabilities, struct ast_codec_pref *prefs)
static call_options_t *	setup_incoming_call (call_details_t *cd)
static int	setup_outgoing_call (call_details_t *cd)
static void	setup_rtp_connection (unsigned call_reference, const char *remoteIp, int remotePort, const char *token, int pt)
static int	unload_module (void)
static int	update_common_options (struct ast_variable *v, struct call_options *options)
static int	update_state (struct oh323_pvt *pvt, int state, int signal)
Variables
static int	acceptAnonymous = 1
static struct ast_alias_list	aliasl
static struct sockaddr_in	bindaddr
static struct ast_cli_entry	cli_h323 []
static struct ast_cli_entry	cli_h323_debug_deprecated
static struct ast_cli_entry	cli_h323_gk_cycle_deprecated
static struct ast_cli_entry	cli_h323_hangup_deprecated
static struct ast_cli_entry	cli_h323_no_debug_deprecated
static struct ast_cli_entry	cli_h323_no_trace_deprecated
static struct ast_cli_entry	cli_h323_reload
static struct ast_cli_entry	cli_h323_reload_deprecated
static struct ast_cli_entry	cli_h323_show_tokens_deprecated
static struct ast_cli_entry	cli_h323_trace_deprecated
static const char	config [] = "h323.conf"
static char	debug_usage []
static char	default_context [AST_MAX_CONTEXT] = "default"
static struct ast_jb_conf	default_jbconf
static char	gatekeeper [100]
static int	gatekeeper_disable = 1
static int	gatekeeper_discover = 0
static int	gkroute = 0
static struct ast_jb_conf	global_jbconf
static call_options_t	global_options
static char	h323_reload_usage []
static int	h323_reloading = 0
static int	h323_signalling_port = 1720
int	h323debug
oh323_pvt *	iflist
static struct io_context *	io
static pthread_t	monitor_thread = AST_PTHREADT_NULL
static char	no_debug_usage []
static char	no_trace_usage []
static struct ast_rtp_protocol	oh323_rtp
static const struct ast_channel_tech	oh323_tech
answer_call_cb	on_answer_call
chan_ringing_cb	on_chan_ringing
clear_con_cb	on_connection_cleared
con_established_cb	on_connection_established
on_rtp_cb	on_external_rtp_create
hangup_cb	on_hangup
onhold_cb	on_hold
setup_incoming_cb	on_incoming_call
setup_outbound_cb	on_outgoing_call
progress_cb	on_progress
receive_digit_cb	on_receive_digit
rfc2833_cb	on_set_rfc2833_payload
setcapabilities_cb	on_setcapabilities
setpeercapabilities_cb	on_setpeercapabilities
start_rtp_cb	on_start_rtp_channel
static struct ast_peer_list	peerl
static struct sched_context *	sched
static char	secret [50]
static char	show_cycle_usage []
static char	show_hangup_usage []
static char	show_tokens_usage []
static const char	tdesc [] = "The NuFone Network's Open H.323 Channel Driver"
static int	tos = 0
static char	trace_usage []
static unsigned int	unique = 0
static int	userbyalias = 1
static struct ast_user_list	userl

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Define Documentation

#define GLOBAL_CAPABILITY   (AST_FORMAT_G723_1 | AST_FORMAT_GSM | AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_G729A | AST_FORMAT_G726_AAL2 | AST_FORMAT_H261)

Definition at line 141 of file chan_h323.c. Referenced by reload_config().

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Function Documentation

static void __oh323_destroy (  struct oh323_pvt *  pvt  )  [static]

Definition at line 451 of file chan_h323.c. References ast_channel_lock, ast_channel_unlock, ast_dsp_free(), ast_log(), ast_mutex_destroy(), ast_mutex_unlock(), ast_rtp_destroy(), ast_sched_del(), oh323_pvt::cd, cleanup_call_details(), oh323_pvt::DTMFsched, free, iflist, oh323_pvt::lock, LOG_DEBUG, LOG_WARNING, oh323_pvt::next, oh323_pvt::owner, oh323_pvt::rtp, sched, ast_channel::tech_pvt, and oh323_pvt::vad. Referenced by do_monitor(), and oh323_destroy(). { struct oh323_pvt *cur, *prev = NULL; if (pvt->DTMFsched >= 0) { ast_sched_del(sched, pvt->DTMFsched); pvt->DTMFsched = -1; } if (pvt->rtp) { ast_rtp_destroy(pvt->rtp); } /* Free dsp used for in-band DTMF detection */ if (pvt->vad) { ast_dsp_free(pvt->vad); } cleanup_call_details(&pvt->cd); /* Unlink us from the owner if we have one */ if (pvt->owner) { ast_channel_lock(pvt->owner); if (h323debug) ast_log(LOG_DEBUG, "Detaching from %s\n", pvt->owner->name); pvt->owner->tech_pvt = NULL; ast_channel_unlock(pvt->owner); } cur = iflist; while(cur) { if (cur == pvt) { if (prev) prev->next = cur->next; else iflist = cur->next; break; } prev = cur; cur = cur->next; } if (!cur) { ast_log(LOG_WARNING, "%p is not in list?!?! \n", cur); } else { ast_mutex_unlock(&pvt->lock); ast_mutex_destroy(&pvt->lock); free(pvt); } }

static struct ast_channel* __oh323_new (  struct oh323_pvt *  pvt, int  state, const char *  host )  [static]

Definition at line 1006 of file chan_h323.c. References accountcode, oh323_pvt::accountcode, ast_channel::amaflags, oh323_pvt::amaflags, ast_best_codec(), ast_channel_alloc(), ast_codec_choose(), ast_dsp_new(), ast_dsp_set_features(), ast_hangup(), ast_log(), ast_module_ref(), ast_mutex_lock(), ast_mutex_unlock(), ast_pbx_start(), ast_rtcp_fd(), ast_rtp_fd(), AST_STATE_DOWN, AST_STATE_RING, ast_strdup, ast_string_field_set, ast_strlen_zero(), ast_udptl_fd(), oh323_pvt::cd, ast_channel::cid, ast_callerid::cid_ani, ast_callerid::cid_dnid, ast_callerid::cid_name, cid_name, ast_callerid::cid_num, cid_num, ast_callerid::cid_pres, ast_callerid::cid_rdnis, ast_callerid::cid_ton, oh323_pvt::context, ast_channel::context, DSP_FEATURE_DTMF_DETECT, oh323_pvt::exten, ast_channel::exten, ast_channel::fds, fmt, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_WARNING, oh323_pvt::nativeformats, ast_channel::nativeformats, oh323_tech, oh323_pvt::options, oh323_pvt::owner, pbx_builtin_setvar_helper(), ast_channel::priority, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, redirectingreason2str(), ast_channel::rings, oh323_pvt::rtp, strdup, ast_channel::tech, ast_channel::tech_pvt, ast_channel::transfercapability, oh323_pvt::vad, and ast_channel::writeformat. Referenced by answer_call(), and oh323_request(). { struct ast_channel *ch; char *cid_num, *cid_name; int fmt; if (!ast_strlen_zero(pvt->options.cid_num)) cid_num = pvt->options.cid_num; else cid_num = pvt->cd.call_source_e164; if (!ast_strlen_zero(pvt->options.cid_name)) cid_name = pvt->options.cid_name; else cid_name = pvt->cd.call_source_name; /* Don't hold a oh323_pvt lock while we allocate a chanel */ ast_mutex_unlock(&pvt->lock); ch = ast_channel_alloc(1, state, cid_num, cid_name, "H323/%s", host); /* Update usage counter */ ast_module_ref(ast_module_info->self); ast_mutex_lock(&pvt->lock); if (ch) { ch->tech = &oh323_tech; if (!(fmt = pvt->jointcapability) && !(fmt = pvt->options.capability)) fmt = global_options.capability; ch->nativeformats = ast_codec_choose(&pvt->options.prefs, fmt, 1)/* | (pvt->jointcapability & AST_FORMAT_VIDEO_MASK)*/; pvt->nativeformats = ch->nativeformats; fmt = ast_best_codec(ch->nativeformats); ch->writeformat = fmt; ch->rawwriteformat = fmt; ch->readformat = fmt; ch->rawreadformat = fmt; #if 0 ch->fds[0] = ast_rtp_fd(pvt->rtp); ch->fds[1] = ast_rtcp_fd(pvt->rtp); #endif #ifdef VIDEO_SUPPORT if (pvt->vrtp) { ch->fds[2] = ast_rtp_fd(pvt->vrtp); ch->fds[3] = ast_rtcp_fd(pvt->vrtp); } #endif #ifdef T38_SUPPORT if (pvt->udptl) { ch->fds[4] = ast_udptl_fd(pvt->udptl); } #endif if (state == AST_STATE_RING) { ch->rings = 1; } /* 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; ast_copy_string(ch->context, pvt->context, sizeof(ch->context)); ast_copy_string(ch->exten, pvt->exten, sizeof(ch->exten)); ch->priority = 1; if (!ast_strlen_zero(pvt->accountcode)) { ast_string_field_set(ch, accountcode, pvt->accountcode); } if (pvt->amaflags) { ch->amaflags = pvt->amaflags; } /* Don't use ast_set_callerid() here because it will * generate a needless NewCallerID event */ ch->cid.cid_num = ast_strdup(cid_num); ch->cid.cid_ani = ast_strdup(cid_num); ch->cid.cid_name = ast_strdup(cid_name); if (pvt->cd.redirect_reason >= 0) { ch->cid.cid_rdnis = ast_strdup(pvt->cd.redirect_number); pbx_builtin_setvar_helper(ch, "PRIREDIRECTREASON", redirectingreason2str(pvt->cd.redirect_reason)); } ch->cid.cid_pres = pvt->cd.presentation; ch->cid.cid_ton = pvt->cd.type_of_number; if (!ast_strlen_zero(pvt->exten) && strcmp(pvt->exten, "s")) { ch->cid.cid_dnid = strdup(pvt->exten); } if (pvt->cd.transfer_capability >= 0) ch->transfercapability = pvt->cd.transfer_capability; 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 int __oh323_rtp_create (  struct oh323_pvt *  pvt  )  [static]

Definition at line 958 of file chan_h323.c. References ast_channel_trylock, ast_channel_unlock, ast_find_ourip(), ast_jb_configure(), ast_log(), ast_mutex_unlock(), ast_null_frame, ast_queue_frame(), ast_rtcp_fd(), ast_rtp_codec_setpref(), ast_rtp_fd(), ast_rtp_new_with_bindaddr(), ast_rtp_set_rtpmap_type(), ast_rtp_setnat(), ast_rtp_settos(), oh323_pvt::dtmf_pt, ast_channel::fds, global_jbconf, io, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, LOG_WARNING, oh323_pvt::options, oh323_pvt::owner, oh323_pvt::peer_prefs, oh323_pvt::peercapability, oh323_pvt::rtp, sched, and oh323_pvt::update_rtp_info. Referenced by external_rtp_create(), and setup_rtp_connection(). { struct in_addr our_addr; if (pvt->rtp) return 0; if (ast_find_ourip(&our_addr, bindaddr)) { ast_mutex_unlock(&pvt->lock); ast_log(LOG_ERROR, "Unable to locate local IP address for RTP stream\n"); return -1; } pvt->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, our_addr); if (!pvt->rtp) { ast_mutex_unlock(&pvt->lock); ast_log(LOG_WARNING, "Unable to create RTP session: %s\n", strerror(errno)); return -1; } if (h323debug) ast_log(LOG_DEBUG, "Created RTP channel\n"); ast_rtp_settos(pvt->rtp, tos); if (h323debug) ast_log(LOG_DEBUG, "Setting NAT on RTP to %d\n", pvt->options.nat); ast_rtp_setnat(pvt->rtp, pvt->options.nat); if (pvt->dtmf_pt[0] > 0) ast_rtp_set_rtpmap_type(pvt->rtp, pvt->dtmf_pt[0], "audio", "telephone-event", 0); if (pvt->dtmf_pt[1] > 0) ast_rtp_set_rtpmap_type(pvt->rtp, pvt->dtmf_pt[1], "audio", "cisco-telephone-event", 0); if (pvt->peercapability) ast_rtp_codec_setpref(pvt->rtp, &pvt->peer_prefs); if (pvt->owner && !ast_channel_trylock(pvt->owner)) { ast_jb_configure(pvt->owner, &global_jbconf); pvt->owner->fds[0] = ast_rtp_fd(pvt->rtp); pvt->owner->fds[1] = ast_rtcp_fd(pvt->rtp); ast_queue_frame(pvt->owner, &ast_null_frame); /* Tell Asterisk to apply changes */ ast_channel_unlock(pvt->owner); } else pvt->update_rtp_info = 1; return 0; }

static void __oh323_update_info (  struct ast_channel *  c, struct oh323_pvt *  pvt )  [static]

Definition at line 339 of file chan_h323.c. References ast_channel::_softhangup, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_jb_configure(), ast_log(), ast_null_frame, ast_queue_control(), ast_queue_frame(), ast_queue_hangup(), ast_rtcp_fd(), ast_rtp_fd(), ast_sched_add(), ast_sched_del(), ast_set_read_format(), ast_set_write_format(), ast_setstate(), AST_SOFTHANGUP_DEV, oh323_pvt::curDTMF, oh323_pvt::DTMFsched, ast_channel::fds, ast_frame::frametype, global_jbconf, oh323_pvt::hangupcause, ast_channel::hangupcause, LOG_DEBUG, LOG_DTMF, oh323_pvt::nativeformats, ast_channel::nativeformats, oh323_pvt::needhangup, oh323_pvt::newcontrol, oh323_pvt::newdigit, oh323_pvt::newduration, oh323_pvt::newstate, oh323_simulate_dtmf_end(), oh323_pvt::owner, ast_channel::readformat, oh323_pvt::rtp, sched, ast_frame::subclass, oh323_pvt::update_rtp_info, and ast_channel::writeformat. Referenced by oh323_read(), oh323_update_info(), and oh323_write(). { if (c->nativeformats != pvt->nativeformats) { if (h323debug) ast_log(LOG_DEBUG, "Preparing %s for new native format\n", c->name); c->nativeformats = pvt->nativeformats; ast_set_read_format(c, c->readformat); ast_set_write_format(c, c->writeformat); } if (pvt->needhangup) { if (h323debug) ast_log(LOG_DEBUG, "Process pending hangup for %s\n", c->name); c->_softhangup |= AST_SOFTHANGUP_DEV; c->hangupcause = pvt->hangupcause; ast_queue_hangup(c); pvt->needhangup = 0; pvt->newstate = pvt->newcontrol = pvt->newdigit = pvt->DTMFsched = -1; } if (pvt->newstate >= 0) { ast_setstate(c, pvt->newstate); pvt->newstate = -1; } if (pvt->newcontrol >= 0) { ast_queue_control(c, pvt->newcontrol); pvt->newcontrol = -1; } if (pvt->newdigit >= 0) { struct ast_frame f = { .frametype = AST_FRAME_DTMF_END, .subclass = pvt->newdigit, .samples = pvt->newduration * 8, .src = "UPDATE_INFO", }; if (pvt->newdigit == ' ') { /* signalUpdate message */ f.subclass = pvt->curDTMF; if (pvt->DTMFsched >= 0) { ast_sched_del(sched, pvt->DTMFsched); pvt->DTMFsched = -1; } } else { /* Regular input or signal message */ if (pvt->newduration) { /* This is a signal, signalUpdate follows */ f.frametype = AST_FRAME_DTMF_BEGIN; if (pvt->DTMFsched >= 0) ast_sched_del(sched, pvt->DTMFsched); pvt->DTMFsched = ast_sched_add(sched, pvt->newduration, oh323_simulate_dtmf_end, pvt); if (h323debug) ast_log(LOG_DTMF, "Scheduled DTMF END simulation for %d ms, id=%d\n", pvt->newduration, pvt->DTMFsched); } pvt->curDTMF = pvt->newdigit; } ast_queue_frame(c, &f); pvt->newdigit = -1; } if (pvt->update_rtp_info > 0) { if (pvt->rtp) { ast_jb_configure(c, &global_jbconf); c->fds[0] = ast_rtp_fd(pvt->rtp); c->fds[1] = ast_rtcp_fd(pvt->rtp); ast_queue_frame(pvt->owner, &ast_null_frame); /* Tell Asterisk to apply changes */ } pvt->update_rtp_info = -1; } }

static int answer_call (  unsigned  call_reference, const char *  token )  [static]

Call-back function to start PBX when OpenH323 ready to serve incoming call Returns 1 on success Definition at line 2223 of file chan_h323.c. References __oh323_new(), AST_CAUSE_UNALLOCATED, ast_exists_extension(), ast_log(), ast_mutex_unlock(), AST_STATE_RINGING, oh323_pvt::cd, oh323_pvt::context, oh323_pvt::exten, find_call_locked(), h323debug, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, and LOG_NOTICE. Referenced by load_module(). { struct oh323_pvt *pvt; struct ast_channel *c = NULL; enum {ext_original, ext_s, ext_i, ext_notexists} try_exten; char tmp_exten[sizeof(pvt->exten)]; 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; } /* Check if requested extension@context pair exists in the dialplan */ ast_copy_string(tmp_exten, pvt->exten, sizeof(tmp_exten)); /* Try to find best extension in specified context */ if ((tmp_exten[0] != '\0') && (tmp_exten[1] == '\0')) { if (tmp_exten[0] == 's') try_exten = ext_s; else if (tmp_exten[0] == 'i') try_exten = ext_i; else try_exten = ext_original; } else try_exten = ext_original; do { if (ast_exists_extension(NULL, pvt->context, tmp_exten, 1, NULL)) break; switch (try_exten) { case ext_original: tmp_exten[0] = 's'; tmp_exten[1] = '\0'; try_exten = ext_s; break; case ext_s: tmp_exten[0] = 'i'; try_exten = ext_i; break; case ext_i: try_exten = ext_notexists; break; default: break; } } while (try_exten != ext_notexists); /* Drop the call if we don't have <exten>, s and i extensions */ if (try_exten == ext_notexists) { ast_log(LOG_NOTICE, "Dropping call because extensions '%s', 's' and 'i' doesn't exists in context [%s]\n", pvt->exten, pvt->context); ast_mutex_unlock(&pvt->lock); h323_clear_call(token, AST_CAUSE_UNALLOCATED); return 0; } else if ((try_exten != ext_original) && (strcmp(pvt->exten, tmp_exten) != 0)) { if (h323debug) ast_log(LOG_DEBUG, "Going to extension %s@%s because %s@%s isn't exists\n", tmp_exten, pvt->context, pvt->exten, pvt->context); ast_copy_string(pvt->exten, tmp_exten, sizeof(pvt->exten)); } /* 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; }

AST_MODULE_INFO (  ASTERISK_GPL_KEY  , AST_MODFLAG_DEFAULT  , "The NuFone Network's OpenH323 Channel Driver"  , .  load = load_module, .  unload = unload_module, .  reload = reload )

AST_MUTEX_DEFINE_STATIC (  h323_reload_lock   )

AST_MUTEX_DEFINE_STATIC (  caplock   )

AST_MUTEX_DEFINE_STATIC (  monlock   )

AST_MUTEX_DEFINE_STATIC (  iflock   )

Protect the interface list (oh323_pvt)

static struct oh323_alias* build_alias (  const char *  name, struct ast_variable *  v, struct ast_variable *  alt, int  realtime )  [static]

Definition at line 1199 of file chan_h323.c. References aliasl, ast_log(), ASTOBJ_CONTAINER_FIND_UNLINK_FULL, ASTOBJ_INIT, calloc, LOG_WARNING, ast_variable::name, ast_variable::next, and ast_variable::value. { struct oh323_alias *alias; int found = 0; alias = ASTOBJ_CONTAINER_FIND_UNLINK_FULL(&aliasl, name, name, 0, 0, strcasecmp); if (alias) found++; else { if (!(alias = (struct oh323_alias *)calloc(1, sizeof(*alias)))) return NULL; ASTOBJ_INIT(alias); } if (!found && name) ast_copy_string(alias->name, name, sizeof(alias->name)); for (; v || ((v = alt) && !(alt = NULL)); v = v->next) { if (!strcasecmp(v->name, "e164")) { ast_copy_string(alias->e164, v->value, sizeof(alias->e164)); } else if (!strcasecmp(v->name, "prefix")) { ast_copy_string(alias->prefix, v->value, sizeof(alias->prefix)); } else if (!strcasecmp(v->name, "context")) { ast_copy_string(alias->context, v->value, sizeof(alias->context)); } else if (!strcasecmp(v->name, "secret")) { ast_copy_string(alias->secret, v->value, sizeof(alias->secret)); } else { if (strcasecmp(v->value, "h323")) { ast_log(LOG_WARNING, "Keyword %s does not make sense in type=h323\n", v->name); } } } ASTOBJ_UNMARK(alias); return alias; }

static struct oh323_peer* build_peer (  const char *  name, struct ast_variable *  v, struct ast_variable *  alt, int  realtime )  [static]

Definition at line 1484 of file chan_h323.c. References ast_append_ha(), ast_get_ip(), ast_log(), ast_variables_destroy(), ASTOBJ_CONTAINER_FIND_UNLINK_FULL, ASTOBJ_INIT, ASTOBJ_UNREF, calloc, global_options, h323_signalling_port, ast_variable::lineno, LOG_ERROR, ast_variable::name, ast_variable::next, oh323_destroy_peer(), peerl, update_common_options(), and ast_variable::value. Referenced by set_config(). { struct oh323_peer *peer; struct ast_ha *oldha; int found = 0; peer = ASTOBJ_CONTAINER_FIND_UNLINK_FULL(&peerl, name, name, 0, 0, strcmp); if (peer) found++; else { if (!(peer = (struct oh323_peer*)calloc(1, sizeof(*peer)))) return NULL; ASTOBJ_INIT(peer); } oldha = peer->ha; peer->ha = NULL; memcpy(&peer->options, &global_options, sizeof(peer->options)); peer->options.dtmfmode = 0; peer->options.holdHandling = 0; peer->addr.sin_port = htons(h323_signalling_port); peer->addr.sin_family = AF_INET; if (!found && name) ast_copy_string(peer->name, name, sizeof(peer->name)); #if 0 /* XXX Port channel variables functionality from chan_sip XXX */ if (peer->chanvars) { ast_variables_destroy(peer->chanvars); peer->chanvars = NULL; } #endif /* Default settings for mailbox */ peer->mailbox[0] = '\0'; for (; v || ((v = alt) && !(alt = NULL)); v = v->next) { if (!update_common_options(v, &peer->options)) continue; if (!strcasecmp(v->name, "host")) { if (!strcasecmp(v->value, "dynamic")) { ast_log(LOG_ERROR, "Dynamic host configuration not implemented.\n"); ASTOBJ_UNREF(peer, oh323_destroy_peer); return NULL; } if (ast_get_ip(&peer->addr, v->value)) { ast_log(LOG_ERROR, "Could not determine IP for %s\n", v->value); ASTOBJ_UNREF(peer, oh323_destroy_peer); return NULL; } } else if (!strcasecmp(v->name, "port")) { peer->addr.sin_port = htons(atoi(v->value)); } else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny")) { int ha_error = 0; peer->ha = ast_append_ha(v->name, v->value, peer->ha, &ha_error); if (ha_error) ast_log(LOG_ERROR, "Bad ACL entry in configuration line %d : %s\n", v->lineno, v->value); } else if (!strcasecmp(v->name, "mailbox")) { ast_copy_string(peer->mailbox, v->value, sizeof(peer->mailbox)); } } if (!peer->options.dtmfmode) peer->options.dtmfmode = global_options.dtmfmode; if (peer->options.holdHandling == ~0) peer->options.holdHandling = 0; else if (!peer->options.holdHandling) peer->options.holdHandling = global_options.holdHandling; ASTOBJ_UNMARK(peer); ast_free_ha(oldha); return peer; }

static struct oh323_user* build_user (  char *  name, struct ast_variable *  v, struct ast_variable *  alt, int  realtime )  [static]

Definition at line 1366 of file chan_h323.c. References ast_append_ha(), ast_cdr_amaflags2int(), ast_get_ip(), ast_log(), ast_variables_destroy(), ASTOBJ_CONTAINER_FIND_UNLINK_FULL, ASTOBJ_INIT, ASTOBJ_UNREF, calloc, default_context, format, global_options, ast_variable::lineno, LOG_ERROR, LOG_WARNING, ast_variable::name, ast_variable::next, oh323_destroy_user(), update_common_options(), userl, and ast_variable::value. Referenced by realtime_user(), reload_config(), and set_config(). { struct oh323_user *user; struct ast_ha *oldha; int found = 0; int format; user = ASTOBJ_CONTAINER_FIND_UNLINK_FULL(&userl, name, name, 0, 0, strcmp); if (user) found++; else { if (!(user = (struct oh323_user *)calloc(1, sizeof(*user)))) return NULL; ASTOBJ_INIT(user); } oldha = user->ha; user->ha = (struct ast_ha *)NULL; memcpy(&user->options, &global_options, sizeof(user->options)); user->options.dtmfmode = 0; user->options.holdHandling = 0; /* Set default context */ ast_copy_string(user->context, default_context, sizeof(user->context)); if (user && !found) ast_copy_string(user->name, name, sizeof(user->name)); #if 0 /* XXX Port channel variables functionality from chan_sip XXX */ if (user->chanvars) { ast_variables_destroy(user->chanvars); user->chanvars = NULL; } #endif for (; v || ((v = alt) && !(alt = NULL)); v = v->next) { if (!update_common_options(v, &user->options)) continue; if (!strcasecmp(v->name, "context")) { ast_copy_string(user->context, v->value, sizeof(user->context)); } else if (!strcasecmp(v->name, "secret")) { ast_copy_string(user->secret, v->value, sizeof(user->secret)); } else if (!strcasecmp(v->name, "accountcode")) { ast_copy_string(user->accountcode, v->value, sizeof(user->accountcode)); } 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"); ASTOBJ_UNREF(user, oh323_destroy_user); return NULL; } else if (ast_get_ip(&user->addr, v->value)) { ASTOBJ_UNREF(user, oh323_destroy_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; } } else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny")) { int ha_error = 0; user->ha = ast_append_ha(v->name, v->value, user->ha, &ha_error); if (ha_error) ast_log(LOG_ERROR, "Bad ACL entry in configuration line %d : %s\n", v->lineno, v->value); } } if (!user->options.dtmfmode) user->options.dtmfmode = global_options.dtmfmode; if (user->options.holdHandling == ~0) user->options.holdHandling = 0; else if (!user->options.holdHandling) user->options.holdHandling = global_options.holdHandling; ASTOBJ_UNMARK(user); ast_free_ha(oldha); return user; }

static void chan_ringing (  unsigned  call_reference, const char *  token )  [static]

Call-back function to signal asterisk that the channel is ringing Returns nothing Definition at line 2314 of file chan_h323.c. References AST_CONTROL_RINGING, ast_log(), ast_mutex_unlock(), AST_STATE_RINGING, find_call_locked(), h323debug, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, oh323_pvt::owner, and update_state(). Referenced by load_module(). { 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; } update_state(pvt, AST_STATE_RINGING, AST_CONTROL_RINGING); ast_mutex_unlock(&pvt->lock); return; }

static void cleanup_call_details (  call_details_t *  cd  )  [static]

Definition at line 415 of file chan_h323.c. References free. Referenced by __oh323_destroy(), cleanup_connection(), setup_incoming_call(), and setup_outgoing_call(). { if (cd->call_token) { free(cd->call_token); cd->call_token = NULL; } if (cd->call_source_aliases) { free(cd->call_source_aliases); cd->call_source_aliases = NULL; } if (cd->call_dest_alias) { free(cd->call_dest_alias); cd->call_dest_alias = NULL; } if (cd->call_source_name) { free(cd->call_source_name); cd->call_source_name = NULL; } if (cd->call_source_e164) { free(cd->call_source_e164); cd->call_source_e164 = NULL; } if (cd->call_dest_e164) { free(cd->call_dest_e164); cd->call_dest_e164 = NULL; } if (cd->sourceIp) { free(cd->sourceIp); cd->sourceIp = NULL; } if (cd->redirect_number) { free(cd->redirect_number); cd->redirect_number = NULL; } }

static void cleanup_connection (  unsigned  call_reference, const char *  call_token )  [static]

Call-back function to cleanup communication Returns nothing, Definition at line 2340 of file chan_h323.c. References ast_channel::_softhangup, oh323_pvt::alreadygone, ast_channel_trylock, ast_channel_unlock, ast_dsp_free(), ast_log(), ast_mutex_unlock(), ast_queue_hangup(), ast_rtp_destroy(), AST_SOFTHANGUP_DEV, oh323_pvt::cd, cleanup_call_details(), find_call_locked(), h323debug, oh323_pvt::lock, ast_channel::lock, LOG_DEBUG, LOG_NOTICE, oh323_pvt::owner, oh323_pvt::rtp, and oh323_pvt::vad. Referenced by load_module(). { struct oh323_pvt *pvt; if (h323debug) 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_channel_trylock(pvt->owner)) 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[0], pvt->owner->lock.reentrancy, pvt->owner->lock.func[0], pvt->owner->lock.file[0], pvt->owner->lock.lineno[0]); #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_channel_unlock(pvt->owner); } ast_mutex_unlock(&pvt->lock); if (h323debug) ast_log(LOG_DEBUG, "Connection to %s cleaned\n", call_token); return; }

static void connection_made (  unsigned  call_reference, const char *  token )  [static]

Call-back function to signal asterisk that the channel has been answered Returns nothing Definition at line 2048 of file chan_h323.c. References AST_CONTROL_ANSWER, ast_log(), ast_mutex_unlock(), oh323_pvt::connection_established, find_call_locked(), h323debug, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, oh323_pvt::outgoing, and update_state(). Referenced by load_module(). { 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; } /* Do not send ANSWER message more than once */ if (!pvt->connection_established) { pvt->connection_established = 1; update_state(pvt, -1, AST_CONTROL_ANSWER); } ast_mutex_unlock(&pvt->lock); return; }

static char* convertcap (  int  cap  )  [static]

Definition at line 3123 of file chan_h323.c. References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G722, AST_FORMAT_G723_1, AST_FORMAT_G729A, AST_FORMAT_GSM, AST_FORMAT_ILBC, AST_FORMAT_SPEEX, AST_FORMAT_ULAW, ast_log(), and LOG_NOTICE. Referenced by oh323_set_rtp_peer(). { 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_G722: return "G.722"; 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 create_addr (  struct oh323_pvt *  pvt, char *  opeer )  [static]

Definition at line 1652 of file chan_h323.c. References ahp, ast_gethostbyname(), ast_log(), AST_RTP_DTMF, ASTOBJ_UNREF, find_peer(), global_options, h323_signalling_port, hp, oh323_pvt::jointcapability, LOG_WARNING, oh323_pvt::nonCodecCapability, oh323_destroy_peer(), oh323_pvt::options, and oh323_pvt::sa. Referenced by iax2_call(), iax2_provision(), iax2_request(), oh323_request(), sip_request_call(), and transmit_register(). { struct hostent *hp; struct ast_hostent ahp; struct oh323_peer *p; int portno; int found = 0; char *port; char *hostn; char peer[256] = ""; ast_copy_string(peer, opeer, sizeof(peer)); port = strchr(peer, ':'); if (port) { *port = '\0'; port++; } pvt->sa.sin_family = AF_INET; p = find_peer(peer, NULL, 1); if (p) { found++; memcpy(&pvt->options, &p->options, sizeof(pvt->options)); pvt->jointcapability = pvt->options.capability; 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; } ASTOBJ_UNREF(p, oh323_destroy_peer); } if (!p && !found) { hostn = peer; if (port) { portno = atoi(port); } else { portno = h323_signalling_port; } hp = ast_gethostbyname(hostn, &ahp); if (hp) { memcpy(&pvt->sa.sin_addr, hp->h_addr, sizeof(pvt->sa.sin_addr)); pvt->sa.sin_port = htons(portno); /* Look peer by address */ p = find_peer(NULL, &pvt->sa, 1); memcpy(&pvt->options, (p ? &p->options : &global_options), sizeof(pvt->options)); pvt->jointcapability = pvt->options.capability; if (p) { ASTOBJ_UNREF(p, oh323_destroy_peer); } if (pvt->options.dtmfmode) { if (pvt->options.dtmfmode & H323_DTMF_RFC2833) { pvt->nonCodecCapability |= AST_RTP_DTMF; } else { pvt->nonCodecCapability &= ~AST_RTP_DTMF; } } return 0; } else { ast_log(LOG_WARNING, "No such host: %s\n", peer); return -1; } } else if (!found) { return -1; } else { return 0; } }

static void delete_aliases (  void   )  [static]

Definition at line 3037 of file chan_h323.c. References aliasl, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_CONTAINER_WRLOCK, ASTOBJ_MARK, ASTOBJ_RDLOCK, and ASTOBJ_UNLOCK. Referenced by h323_do_reload(). { int pruned = 0; /* Delete all aliases */ ASTOBJ_CONTAINER_WRLOCK(&aliasl); ASTOBJ_CONTAINER_TRAVERSE(&aliasl, 1, do { ASTOBJ_RDLOCK(iterator); ASTOBJ_MARK(iterator); ++pruned; ASTOBJ_UNLOCK(iterator); } while (0) ); if (pruned) { ASTOBJ_CONTAINER_PRUNE_MARKED(&aliasl, oh323_destroy_alias); } ASTOBJ_CONTAINER_UNLOCK(&aliasl); }

static void delete_users (  void   )  [static]

Definition at line 3011 of file chan_h323.c. References ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_CONTAINER_WRLOCK, ASTOBJ_MARK, ASTOBJ_RDLOCK, ASTOBJ_UNLOCK, and userl. Referenced by __unload_module(), h323_do_reload(), and reload_config(). { int pruned = 0; /* Delete all users */ ASTOBJ_CONTAINER_WRLOCK(&userl); ASTOBJ_CONTAINER_TRAVERSE(&userl, 1, do { ASTOBJ_RDLOCK(iterator); ASTOBJ_MARK(iterator); ++pruned; ASTOBJ_UNLOCK(iterator); } while (0) ); if (pruned) { ASTOBJ_CONTAINER_PRUNE_MARKED(&userl, oh323_destroy_user); } ASTOBJ_CONTAINER_UNLOCK(&userl); ASTOBJ_CONTAINER_WRLOCK(&peerl); ASTOBJ_CONTAINER_TRAVERSE(&peerl, 1, do { ASTOBJ_RDLOCK(iterator); ASTOBJ_MARK(iterator); ASTOBJ_UNLOCK(iterator); } while (0) ); ASTOBJ_CONTAINER_UNLOCK(&peerl); }

static void* do_monitor (  void *  data  )  [static]

Definition at line 2515 of file chan_h323.c. References __oh323_destroy(), ast_mutex_lock(), ast_mutex_trylock(), ast_mutex_unlock(), ast_verbose(), h323_do_reload(), h323_reloading, iflist, oh323_pvt::lock, oh323_pvt::needdestroy, oh323_pvt::next, option_verbose, and VERBOSE_PREFIX_1. Referenced by restart_monitor(). { 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 */ if (!ast_mutex_trylock(&iflock)) { #if 1 do { for (oh323 = iflist; oh323; oh323 = oh323->next) { if (!ast_mutex_trylock(&oh323->lock)) { if (oh323->needdestroy) { __oh323_destroy(oh323); break; } ast_mutex_unlock(&oh323->lock); } } } while (/*oh323*/ 0); #else restartsearch: oh323 = iflist; while(oh323) { if (!ast_mutex_trylock(&oh323->lock)) { if (oh323->needdestroy) { __oh323_destroy(oh323); goto restartsearch; } ast_mutex_unlock(&oh323->lock); oh323 = oh323->next; } } #endif ast_mutex_unlock(&iflock); } else oh323 = (struct oh323_pvt *)1; /* Force fast loop */ pthread_testcancel(); /* Wait for sched or io */ res = ast_sched_wait(sched); if ((res < 0) || (res > 1000)) { res = 1000; } /* Do not wait if some channel(s) is destroyed, probably, more available too */ if (oh323) res = 1; 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 struct rtp_info* external_rtp_create (  unsigned  call_reference, const char *  token )  [static]

Callback function used to inform the H.323 stack of the local rtp ip/port details Returns the local RTP information Definition at line 1890 of file chan_h323.c. References __oh323_rtp_create(), ast_inet_ntoa(), ast_log(), ast_mutex_unlock(), ast_rtp_get_us(), find_call_locked(), free, h323debug, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, malloc, and oh323_pvt::rtp. Referenced by load_module(). { 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; } if (!pvt->rtp) __oh323_rtp_create(pvt); if (!pvt->rtp) { ast_mutex_unlock(&pvt->lock); free(info); ast_log(LOG_ERROR, "No RTP stream is available for call %s (%d)", 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_copy_string(info->addr, ast_inet_ntoa(us.sin_addr), sizeof(info->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; }

static struct oh323_alias* find_alias (  const char *  source_aliases, int  realtime )  [static]

Find a call by alias Definition at line 1813 of file chan_h323.c. References aliasl, ASTOBJ_CONTAINER_FIND, and realtime_alias(). Referenced by add_header(), and setup_incoming_call(). { struct oh323_alias *a; a = ASTOBJ_CONTAINER_FIND(&aliasl, source_aliases); if (!a && realtime) a = realtime_alias(source_aliases); return a; }

static struct oh323_pvt* find_call_locked (  int  call_reference, const char *  token )  [static]

Definition at line 1152 of file chan_h323.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::cd, iflist, oh323_pvt::lock, LOG_WARNING, oh323_pvt::needdestroy, and oh323_pvt::next. Referenced by answer_call(), chan_ringing(), cleanup_connection(), connection_made(), external_rtp_create(), hangup_connection(), progress(), receive_digit(), remote_hold(), set_dtmf_payload(), set_local_capabilities(), set_peer_capabilities(), and setup_rtp_connection(). { 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 struct oh323_peer* find_peer (  const char *  peer, struct sockaddr_in *  sin, int  realtime )  [static]

Definition at line 1634 of file chan_h323.c. References ast_inet_ntoa(), ast_log(), ASTOBJ_CONTAINER_FIND, ASTOBJ_CONTAINER_FIND_FULL, h323debug, LOG_DEBUG, oh323_addrcmp(), peerl, and realtime_peer(). Referenced by _sip_show_peer(), check_peer_ok(), create_addr(), dundi_encrypt(), function_iaxpeer(), function_sippeer(), handle_command_response(), iax2_devicestate(), iax2_prune_realtime(), iax2_show_peer(), register_verify(), registry_authrequest(), sip_devicestate(), sip_do_debug_peer(), sip_peer_hold(), update_call_counter(), and update_registry(). { struct oh323_peer *p; if (peer) p = ASTOBJ_CONTAINER_FIND(&peerl, peer); else p = ASTOBJ_CONTAINER_FIND_FULL(&peerl, sin, addr, 0, 0, oh323_addrcmp); if (!p && realtime) p = realtime_peer(peer, sin); if (!p && h323debug) ast_log(LOG_DEBUG, "Could not find peer by name %s or address %s\n", (peer ? peer : "<NONE>"), (sin ? ast_inet_ntoa(sin->sin_addr) : "<NONE>")); return p; }

static struct oh323_user* find_user (  const call_details_t *  cd, int  realtime )  [static]

Definition at line 1604 of file chan_h323.c. References ast_log(), ASTOBJ_CONTAINER_FIND, ASTOBJ_CONTAINER_FIND_FULL, h323debug, LOG_DEBUG, oh323_addrcmp_str(), realtime_user(), userbyalias, and userl. Referenced by check_user_ok(), setup_incoming_call(), sip_show_user(), and update_call_counter(). { struct oh323_user *u; if (userbyalias) u = ASTOBJ_CONTAINER_FIND(&userl, cd->call_source_aliases); else u = ASTOBJ_CONTAINER_FIND_FULL(&userl, cd->sourceIp, addr.sin_addr, 0, 0, oh323_addrcmp_str); if (!u && realtime) u = realtime_user(cd); if (!u && h323debug) ast_log(LOG_DEBUG, "Could not find user by name %s or address %s\n", cd->call_source_aliases, cd->sourceIp); return u; }

static int h323_do_debug (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2640 of file chan_h323.c. References ast_cli(), h323debug, RESULT_SHOWUSAGE, and RESULT_SUCCESS. { if (argc < 2 || argc > 3) { return RESULT_SHOWUSAGE; } h323debug = 1; ast_cli(fd, "H.323 debug enabled\n"); return RESULT_SUCCESS; }

static int h323_do_reload (  void   )  [static]

Definition at line 3074 of file chan_h323.c. References delete_aliases(), delete_users(), prune_peers(), and reload_config(). Referenced by do_monitor(). { delete_users(); delete_aliases(); prune_peers(); reload_config(1); return 0; }

static int h323_do_trace (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2620 of file chan_h323.c. References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS. { if (argc != 4) { return RESULT_SHOWUSAGE; } h323_debug(1, atoi(argv[3])); ast_cli(fd, "H.323 trace set to level %s\n", argv[2]); return RESULT_SUCCESS; }

static int h323_ep_hangup (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2676 of file chan_h323.c. References ast_verbose(), RESULT_SHOWUSAGE, RESULT_SUCCESS, and VERBOSE_PREFIX_3. { 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_gk_cycle (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2660 of file chan_h323.c. References ast_log(), gatekeeper, gatekeeper_disable, gatekeeper_discover, LOG_ERROR, RESULT_SHOWUSAGE, RESULT_SUCCESS, and secret. { 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"); } } return RESULT_SUCCESS; }

static int h323_no_debug (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2650 of file chan_h323.c. References ast_cli(), h323debug, RESULT_SHOWUSAGE, and RESULT_SUCCESS. { if (argc < 3 || argc > 4) { return RESULT_SHOWUSAGE; } h323debug = 0; ast_cli(fd, "H.323 debug disabled\n"); return RESULT_SUCCESS; }

static int h323_no_trace (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2630 of file chan_h323.c. References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS. { if (argc < 3 || argc > 4) { return RESULT_SHOWUSAGE; } h323_debug(0,0); ast_cli(fd, "H.323 trace disabled\n"); return RESULT_SUCCESS; }

static int h323_reload (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 3061 of file chan_h323.c. References ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), h323_reloading, and restart_monitor(). Referenced by reload(). { 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_tokens_show (  int  fd, int  argc, char *  argv[] )  [static]

Definition at line 2689 of file chan_h323.c. References RESULT_SHOWUSAGE, and RESULT_SUCCESS. { if (argc != 3) { return RESULT_SHOWUSAGE; } h323_show_tokens(); return RESULT_SUCCESS; }

static void hangup_connection (  unsigned int  call_reference, const char *  token, int  cause )  [static]

Definition at line 2390 of file chan_h323.c. References ast_channel::_softhangup, ast_channel_trylock, ast_channel_unlock, ast_log(), ast_mutex_unlock(), ast_queue_hangup(), AST_SOFTHANGUP_DEV, find_call_locked(), h323debug, oh323_pvt::hangupcause, ast_channel::hangupcause, oh323_pvt::lock, LOG_DEBUG, oh323_pvt::needhangup, and oh323_pvt::owner. Referenced by load_module(). { struct oh323_pvt *pvt; if (h323debug) { ast_log(LOG_DEBUG, "Hanging up connection to %s with cause %d\n", token, cause); } pvt = find_call_locked(call_reference, token); if (!pvt) { if (h323debug) { ast_log(LOG_DEBUG, "Connection to %s already cleared\n", token); } return; } if (pvt->owner && !ast_channel_trylock(pvt->owner)) { pvt->owner->_softhangup |= AST_SOFTHANGUP_DEV; pvt->owner->hangupcause = pvt->hangupcause = cause; ast_queue_hangup(pvt->owner); ast_channel_unlock(pvt->owner); } else { pvt->needhangup = 1; pvt->hangupcause = cause; if (h323debug) ast_log(LOG_DEBUG, "Hangup for %s is pending\n", token); } ast_mutex_unlock(&pvt->lock); }

static enum ast_module_load_result load_module (  void   )  [static]

Definition at line 3183 of file chan_h323.c. References aliasl, answer_call(), ast_channel_register(), ast_cli_register(), ast_cli_register_multiple(), ast_cli_unregister(), ast_cli_unregister_multiple(), ast_log(), AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_rtp_proto_register(), ast_rtp_proto_unregister(), ASTOBJ_CONTAINER_DESTROY, ASTOBJ_CONTAINER_DESTROYALL, ASTOBJ_CONTAINER_INIT, bindaddr, chan_ringing(), cleanup_connection(), cli_h323, cli_h323_reload, connection_made(), external_rtp_create(), gatekeeper, gatekeeper_disable, gatekeeper_discover, h323_signalling_port, h323debug, hangup_connection(), io, io_context_create(), io_context_destroy(), LOG_ERROR, LOG_NOTICE, LOG_WARNING, oh323_destroy_alias(), oh323_destroy_peer(), oh323_destroy_user(), oh323_rtp, oh323_tech, peerl, receive_digit(), reload_config(), remote_hold(), restart_monitor(), sched_context_create(), sched_context_destroy(), secret, set_dtmf_payload(), set_local_capabilities(), set_peer_capabilities(), setup_incoming_call(), setup_outgoing_call(), setup_rtp_connection(), and userl. { int res; h323debug = 0; sched = sched_context_create(); if (!sched) { ast_log(LOG_WARNING, "Unable to create schedule context\n"); return AST_MODULE_LOAD_FAILURE; } io = io_context_create(); if (!io) { ast_log(LOG_WARNING, "Unable to create I/O context\n"); return AST_MODULE_LOAD_FAILURE; } ast_cli_register(&cli_h323_reload); ASTOBJ_CONTAINER_INIT(&userl); ASTOBJ_CONTAINER_INIT(&peerl); ASTOBJ_CONTAINER_INIT(&aliasl); res = reload_config(0); if (res) { /* No config entry */ ast_log(LOG_NOTICE, "Unload and load chan_h323.so again in order to receive configuration changes.\n"); ast_cli_unregister(&cli_h323_reload); io_context_destroy(io); io = NULL; sched_context_destroy(sched); sched = NULL; ASTOBJ_CONTAINER_DESTROY(&userl); ASTOBJ_CONTAINER_DESTROY(&peerl); ASTOBJ_CONTAINER_DESTROY(&aliasl); return AST_MODULE_LOAD_DECLINE; } else { /* Make sure we can register our channel type */ if (ast_channel_register(&oh323_tech)) { ast_log(LOG_ERROR, "Unable to register channel class 'H323'\n"); ast_cli_unregister(&cli_h323_reload); h323_end_process(); io_context_destroy(io); sched_context_destroy(sched); ASTOBJ_CONTAINER_DESTROYALL(&userl, oh323_destroy_user); ASTOBJ_CONTAINER_DESTROY(&userl); ASTOBJ_CONTAINER_DESTROYALL(&peerl, oh323_destroy_peer); ASTOBJ_CONTAINER_DESTROY(&peerl); ASTOBJ_CONTAINER_DESTROYALL(&aliasl, oh323_destroy_alias); ASTOBJ_CONTAINER_DESTROY(&aliasl); return AST_MODULE_LOAD_FAILURE; } ast_cli_register_multiple(cli_h323, sizeof(cli_h323) / sizeof(struct ast_cli_entry)); 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, receive_digit, answer_call, progress, set_dtmf_payload, hangup_connection, set_local_capabilities, set_peer_capabilities, remote_hold); /* start the h.323 listener */ if (h323_start_listener(h323_signalling_port, bindaddr)) { ast_log(LOG_ERROR, "Unable to create H323 listener.\n"); ast_rtp_proto_unregister(&oh323_rtp); ast_cli_unregister_multiple(cli_h323, sizeof(cli_h323) / sizeof(struct ast_cli_entry)); ast_cli_unregister(&cli_h323_reload); h323_end_process(); io_context_destroy(io); sched_context_destroy(sched); ASTOBJ_CONTAINER_DESTROYALL(&userl, oh323_destroy_user); ASTOBJ_CONTAINER_DESTROY(&userl); ASTOBJ_CONTAINER_DESTROYALL(&peerl, oh323_destroy_peer); ASTOBJ_CONTAINER_DESTROY(&peerl); ASTOBJ_CONTAINER_DESTROYALL(&aliasl, oh323_destroy_alias); ASTOBJ_CONTAINER_DESTROY(&aliasl); return AST_MODULE_LOAD_FAILURE; } /* Possibly register with a GK */ if (!gatekeeper_disable) { if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) { ast_log(LOG_ERROR, "Gatekeeper registration failed.\n"); gatekeeper_disable = 1; res = AST_MODULE_LOAD_SUCCESS; } } /* And start the monitor for the first time */ restart_monitor(); } return res; }

static int oh323_addrcmp (  struct sockaddr_in  addr, struct sockaddr_in *  sin )  [static]

Definition at line 1622 of file chan_h323.c. References inaddrcmp(). Referenced by find_peer(). { int res; if (!sin) res = -1; else res = inaddrcmp(&addr , sin); return res; }

static int oh323_addrcmp_str (  struct in_addr  inaddr, char *  addr )  [static]

Definition at line 1599 of file chan_h323.c. References ast_inet_ntoa(). Referenced by find_user(). { return strcmp(ast_inet_ntoa(inaddr), addr); }

static struct oh323_pvt* oh323_alloc (  int  callid  )  [static]

Definition at line 1108 of file chan_h323.c. References ast_log(), ast_mutex_init(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_destroy(), AST_RTP_DTMF, oh323_pvt::cd, oh323_pvt::context, oh323_pvt::DTMFsched, free, iflist, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_ERROR, malloc, oh323_pvt::newcontrol, oh323_pvt::newdigit, oh323_pvt::newstate, oh323_pvt::next, oh323_pvt::nonCodecCapability, oh323_pvt::options, oh323_pvt::rtp, and oh323_pvt::update_rtp_info. Referenced by oh323_request(), and setup_incoming_call(). { 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->cd.redirect_reason = -1; pvt->cd.transfer_capability = -1; /* Ensure the call token is allocated for outgoing call */ if (!callid) { 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"); ast_rtp_destroy(pvt->rtp); free(pvt); return NULL; } memset((char *)(pvt->cd).call_token, 0, 128); pvt->cd.call_reference = callid; } memcpy(&pvt->options, &global_options, sizeof(pvt->options)); pvt->jointcapability = pvt->options.capability; if (pvt->options.dtmfmode & (H323_DTMF_RFC2833 | H323_DTMF_CISCO)) { pvt->nonCodecCapability |= AST_RTP_DTMF; } else { pvt->nonCodecCapability &= ~AST_RTP_DTMF; } ast_copy_string(pvt->context, default_context, sizeof(pvt->context)); pvt->newstate = pvt->newcontrol = pvt->newdigit = pvt->update_rtp_info = pvt->DTMFsched = -1; ast_mutex_init(&pvt->lock); /* Add to interface list */ ast_mutex_lock(&iflock); pvt->next = iflist; iflist = pvt; ast_mutex_unlock(&iflock); return pvt; }

static int oh323_answer (  struct ast_channel *  c  )  [static]

Definition at line 669 of file chan_h323.c. References ast_channel::_state, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_setstate(), AST_STATE_UP, oh323_pvt::cd, free, oh323_pvt::lock, LOG_DEBUG, oh323_update_info(), strdup, and ast_channel::tech_pvt. { int res; struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt; char *token; if (h323debug) ast_log(LOG_DEBUG, "Answering on %s\n", c->name); ast_mutex_lock(&pvt->lock); token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL; ast_mutex_unlock(&pvt->lock); res = h323_answering_call(token, 0); if (token) free(token); oh323_update_info(c); if (c->_state != AST_STATE_UP) { ast_setstate(c, AST_STATE_UP); } return res; }

static int oh323_call (  struct ast_channel *  c, char *  dest, int  timeout )  [static]

Make a call over the specified channel to the specified destination. Returns -1 on error, 0 on success. Definition at line 590 of file chan_h323.c. References ast_channel::_state, ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_STATE_DOWN, AST_STATE_RESERVED, ast_strlen_zero(), ast_transfercapability2str(), ast_verbose(), oh323_pvt::cd, ast_channel::cid, ast_callerid::cid_name, ast_callerid::cid_num, ast_callerid::cid_pres, ast_callerid::cid_rdnis, ast_callerid::cid_ton, oh323_pvt::exten, oh323_pvt::lock, LOG_DEBUG, LOG_NOTICE, LOG_WARNING, oh323_update_info(), option_verbose, oh323_pvt::options, oh323_pvt::outgoing, pbx_builtin_getvar_helper(), oh323_pvt::sa, ast_channel::tech_pvt, ast_channel::transfercapability, and VERBOSE_PREFIX_3. { int res = 0; struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt; const char *addr; char called_addr[1024]; if (h323debug) { ast_log(LOG_DEBUG, "Calling to %s on %s\n", dest, c->name); } if ((c->_state != AST_STATE_DOWN) && (c->_state != AST_STATE_RESERVED)) { ast_log(LOG_WARNING, "Line is already in use (%s)\n", c->name); return -1; } ast_mutex_lock(&pvt->lock); if (!gatekeeper_disable) { if (ast_strlen_zero(pvt->exten)) { ast_copy_string(called_addr, dest, sizeof(called_addr)); } else { snprintf(called_addr, sizeof(called_addr), "%s@%s", pvt->exten, dest); } } else { res = htons(pvt->sa.sin_port); addr = ast_inet_ntoa(pvt->sa.sin_addr); if (ast_strlen_zero(pvt->exten)) { snprintf(called_addr, sizeof(called_addr), "%s:%d", addr, res); } else { snprintf(called_addr, sizeof(called_addr), "%s@%s:%d", pvt->exten, addr, res); } } /* make sure null terminated */ called_addr[sizeof(called_addr) - 1] = '\0'; if (c->cid.cid_num) ast_copy_string(pvt->options.cid_num, c->cid.cid_num, sizeof(pvt->options.cid_num)); if (c->cid.cid_name) ast_copy_string(pvt->options.cid_name, c->cid.cid_name, sizeof(pvt->options.cid_name)); if (c->cid.cid_rdnis) { ast_copy_string(pvt->options.cid_rdnis, c->cid.cid_rdnis, sizeof(pvt->options.cid_rdnis)); } pvt->options.presentation = c->cid.cid_pres; pvt->options.type_of_number = c->cid.cid_ton; if ((addr = pbx_builtin_getvar_helper(c, "PRIREDIRECTREASON"))) { if (!strcasecmp(addr, "UNKNOWN")) pvt->options.redirect_reason = 0; else if (!strcasecmp(addr, "BUSY")) pvt->options.redirect_reason = 1; else if (!strcasecmp(addr, "NO_REPLY")) pvt->options.redirect_reason = 2; else if (!strcasecmp(addr, "UNCONDITIONAL")) pvt->options.redirect_reason = 15; else pvt->options.redirect_reason = -1; } else pvt->options.redirect_reason = -1; pvt->options.transfer_capability = c->transfercapability; /* indicate that this is an outgoing call */ pvt->outgoing = 1; if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "Requested transfer capability: 0x%.2x - %s\n", c->transfercapability, ast_transfercapability2str(c->transfercapability)); if (h323debug) ast_log(LOG_DEBUG, "Placing outgoing call to %s, %d/%d\n", called_addr, pvt->options.dtmfcodec[0], pvt->options.dtmfcodec[1]); ast_mutex_unlock(&pvt->lock); res = h323_make_call(called_addr, &(pvt->cd), &pvt->options); if (res) { ast_log(LOG_NOTICE, "h323_make_call failed(%s)\n", c->name); return -1; } oh323_update_info(c); return 0; }

static void oh323_destroy (  struct oh323_pvt *  pvt  )  [static]

Definition at line 499 of file chan_h323.c. References __oh323_destroy(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::lock, LOG_DEBUG, and oh323_pvt::owner. Referenced by oh323_request(), and setup_incoming_call(). { if (h323debug) { ast_log(LOG_DEBUG, "Destroying channel %s\n", (pvt->owner ? pvt->owner->name : "<unknown>")); } ast_mutex_lock(&iflock); ast_mutex_lock(&pvt->lock); __oh323_destroy(pvt); ast_mutex_unlock(&iflock); }

static void oh323_destroy_alias (  struct oh323_alias *  alias  )  [static]

Definition at line 284 of file chan_h323.c. References ast_log(), free, and LOG_DEBUG. Referenced by load_module(), and unload_module(). { if (h323debug) ast_log(LOG_DEBUG, "Destroying alias '%s'\n", alias->name); free(alias); }

static void oh323_destroy_peer (  struct oh323_peer *  peer  )  [static]

Definition at line 299 of file chan_h323.c. References ast_free_ha(), ast_log(), free, and LOG_DEBUG. Referenced by build_peer(), create_addr(), load_module(), prune_peers(), and unload_module(). { if (h323debug) ast_log(LOG_DEBUG, "Destroying peer '%s'\n", peer->name); ast_free_ha(peer->ha); free(peer); }

static void oh323_destroy_user (  struct oh323_user *  user  )  [static]

Definition at line 291 of file chan_h323.c. References ast_free_ha(), ast_log(), free, and LOG_DEBUG. Referenced by build_user(), load_module(), reload_config(), setup_incoming_call(), and unload_module(). { if (h323debug) ast_log(LOG_DEBUG, "Destroying user '%s'\n", user->name); ast_free_ha(user->ha); free(user); }

static int oh323_digit_begin (  struct ast_channel *  c, char  digit )  [static]

Definition at line 510 of file chan_h323.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_begin(), oh323_pvt::cd, oh323_pvt::dtmf_pt, free, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, oh323_update_info(), oh323_pvt::options, oh323_pvt::rtp, strdup, ast_channel::tech_pvt, and oh323_pvt::txDtmfDigit. { struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt; char *token; if (!pvt) { ast_log(LOG_ERROR, "No private structure?! This is bad\n"); return -1; } ast_mutex_lock(&pvt->lock); if (pvt->rtp && (((pvt->options.dtmfmode & H323_DTMF_RFC2833) && pvt->dtmf_pt[0]) /*|| ((pvt->options.dtmfmode & H323_DTMF_CISCO) && pvt->dtmf_pt[1]))*/)) { /* out-of-band DTMF */ if (h323debug) { ast_log(LOG_DTMF, "Begin sending out-of-band digit %c on %s\n", digit, c->name); } ast_rtp_senddigit_begin(pvt->rtp, digit); ast_mutex_unlock(&pvt->lock); } else if (pvt->txDtmfDigit != digit) { /* in-band DTMF */ if (h323debug) { ast_log(LOG_DTMF, "Begin sending inband digit %c on %s\n", digit, c->name); } pvt->txDtmfDigit = digit; token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL; ast_mutex_unlock(&pvt->lock); h323_send_tone(token, digit); if (token) { free(token); } } else ast_mutex_unlock(&pvt->lock); oh323_update_info(c); return 0; }

static int oh323_digit_end (  struct ast_channel *  c, char  digit, unsigned int  duration )  [static]

Send (play) the specified digit to the channel. Definition at line 551 of file chan_h323.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_end(), oh323_pvt::cd, oh323_pvt::dtmf_pt, free, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, oh323_update_info(), oh323_pvt::options, oh323_pvt::rtp, strdup, ast_channel::tech_pvt, and oh323_pvt::txDtmfDigit. { struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt; char *token; if (!pvt) { ast_log(LOG_ERROR, "No private structure?! This is bad\n"); return -1; } ast_mutex_lock(&pvt->lock); if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833) && ((pvt->dtmf_pt[0] > 0) || (pvt->dtmf_pt[0] > 0))) { /* out-of-band DTMF */ if (h323debug) { ast_log(LOG_DTMF, "End sending out-of-band digit %c on %s\n", digit, c->name); } ast_rtp_senddigit_end(pvt->rtp, digit); ast_mutex_unlock(&pvt->lock); } else { /* in-band DTMF */ if (h323debug) { ast_log(LOG_DTMF, "End sending inband digit %c on %s\n", digit, c->name); } pvt->txDtmfDigit = ' '; token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL; ast_mutex_unlock(&pvt->lock); h323_send_tone(token, ' '); if (token) { free(token); } } oh323_update_info(c); return 0; }

static int oh323_fixup (  struct ast_channel *  oldchan, struct ast_channel *  newchan )  [static]

Definition at line 944 of file chan_h323.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::lock, LOG_WARNING, oh323_pvt::owner, and ast_channel::tech_pvt. { 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; }

static enum ast_rtp_get_result oh323_get_rtp_peer (  struct ast_channel *  chan, struct ast_rtp **  rtp )  [static]

Definition at line 3100 of file chan_h323.c. References ast_mutex_lock(), ast_mutex_unlock(), AST_RTP_GET_FAILED, AST_RTP_TRY_NATIVE, oh323_pvt::lock, oh323_pvt::options, oh323_pvt::rtp, and ast_channel::tech_pvt. { struct oh323_pvt *pvt; enum ast_rtp_get_result res = AST_RTP_GET_FAILED; if (!(pvt = (struct oh323_pvt *)chan->tech_pvt)) return res; ast_mutex_lock(&pvt->lock); if (pvt->rtp && pvt->options.bridge) { *rtp = pvt->rtp; res = AST_RTP_TRY_NATIVE; } ast_mutex_unlock(&pvt->lock); return res; }

static enum ast_rtp_get_result oh323_get_vrtp_peer (  struct ast_channel *  chan, struct ast_rtp **  rtp )  [static]

Definition at line 3118 of file chan_h323.c. References AST_RTP_GET_FAILED. { return AST_RTP_GET_FAILED; }

static int oh323_hangup (  struct ast_channel *  c  )  [static]

Definition at line 692 of file chan_h323.c. References oh323_pvt::alreadygone, AST_CAUSE_CALL_REJECTED, AST_CAUSE_NO_ANSWER, AST_CAUSE_NORMAL_CIRCUIT_CONGESTION, AST_CAUSE_NORMAL_CLEARING, AST_CAUSE_REQUESTED_CHAN_UNAVAIL, AST_CAUSE_USER_BUSY, ast_log(), ast_module_unref(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::cd, free, oh323_pvt::hangupcause, ast_channel::hangupcause, oh323_pvt::lock, LOG_DEBUG, LOG_WARNING, oh323_pvt::needdestroy, oh323_pvt::owner, pbx_builtin_getvar_helper(), strdup, and ast_channel::tech_pvt. { struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt; int q931cause = AST_CAUSE_NORMAL_CLEARING; char *call_token; if (h323debug) ast_log(LOG_DEBUG, "Hanging up and scheduling destroy of call %s\n", c->name); if (!c->tech_pvt) { ast_log(LOG_WARNING, "Asked to hangup channel not connected\n"); return 0; } ast_mutex_lock(&pvt->lock); /* Determine how to disconnect */ if (pvt->owner != c) { ast_log(LOG_WARNING, "Huh? We aren't the owner?\n"); ast_mutex_unlock(&pvt->lock); return 0; } pvt->owner = NULL; c->tech_pvt = NULL; if (c->hangupcause) { q931cause = c->hangupcause; } else { const 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_WARNING, "ClearCall failed.\n"); } free(call_token); ast_mutex_lock(&pvt->lock); } } pvt->needdestroy = 1; ast_mutex_unlock(&pvt->lock); /* Update usage counter */ ast_module_unref(ast_module_info->self); return 0; }

static int oh323_indicate (  struct ast_channel *  c, int  condition, const void *  data, size_t  datalen )  [static]

Definition at line 867 of file chan_h323.c. References ast_channel::_state, oh323_pvt::alreadygone, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_HOLD, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_RINGING, AST_CONTROL_UNHOLD, ast_log(), ast_moh_start(), ast_moh_stop(), ast_mutex_lock(), ast_mutex_unlock(), AST_SOFTHANGUP_DEV, ast_softhangup_nolock(), AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, oh323_pvt::cd, free, oh323_pvt::got_progress, oh323_pvt::lock, LOG_DEBUG, LOG_WARNING, oh323_update_info(), strdup, and ast_channel::tech_pvt. { struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt; char *token = (char *)NULL; int res = -1; int got_progress; ast_mutex_lock(&pvt->lock); token = (pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL); got_progress = pvt->got_progress; if (condition == AST_CONTROL_PROGRESS) pvt->got_progress = 1; else if ((condition == AST_CONTROL_BUSY) || (condition == AST_CONTROL_CONGESTION)) pvt->alreadygone = 1; ast_mutex_unlock(&pvt->lock); if (h323debug) ast_log(LOG_DEBUG, "OH323: Indicating %d on %s (%s)\n", condition, token, c->name); switch(condition) { case AST_CONTROL_RINGING: if (c->_state == AST_STATE_RING || c->_state == AST_STATE_RINGING) { h323_send_alerting(token); res = (got_progress ? 0 : -1); /* Do not simulate any audio tones if we got PROGRESS message */ } break; case AST_CONTROL_PROGRESS: if (c->_state != AST_STATE_UP) { /* Do not send PROGRESS message more than once */ if (!got_progress) h323_send_progress(token); res = 0; } break; case AST_CONTROL_BUSY: if (c->_state != AST_STATE_UP) { h323_answering_call(token, 1); ast_softhangup_nolock(c, AST_SOFTHANGUP_DEV); res = 0; } break; case AST_CONTROL_CONGESTION: if (c->_state != AST_STATE_UP) { h323_answering_call(token, 1); ast_softhangup_nolock(c, AST_SOFTHANGUP_DEV); res = 0; } break; case AST_CONTROL_HOLD: h323_hold_call(token, 1); /* We should start MOH only if remote party isn't provide audio for us */ ast_moh_start(c, data, NULL); res = 0; break; case AST_CONTROL_UNHOLD: h323_hold_call(token, 0); ast_moh_stop(c); res = 0; break; case AST_CONTROL_PROCEEDING: case -1: break; default: ast_log(LOG_WARNING, "OH323: Don't know how to indicate condition %d on %s\n", condition, token); break; } if (h323debug) ast_log(LOG_DEBUG, "OH323: Indicated %d on %s, res=%d\n", condition, token, res); if (token) free(token); oh323_update_info(c); return res; }

static struct ast_frame * oh323_read (  struct ast_channel *  c  )  [static]

Definition at line 814 of file chan_h323.c. References __oh323_update_info(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_null_frame, ast_rtcp_read(), ast_channel::fdno, oh323_pvt::lock, LOG_ERROR, oh323_rtp_read(), oh323_pvt::rtp, and ast_channel::tech_pvt. { struct ast_frame *fr; struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt; ast_mutex_lock(&pvt->lock); __oh323_update_info(c, pvt); switch(c->fdno) { case 0: fr = oh323_rtp_read(pvt); break; case 1: if (pvt->rtp) fr = ast_rtcp_read(pvt->rtp); else fr = &ast_null_frame; break; default: ast_log(LOG_ERROR, "Unable to handle fd %d on channel %s\n", c->fdno, c->name); fr = &ast_null_frame; break; } ast_mutex_unlock(&pvt->lock); return fr; }

static struct ast_channel * oh323_request (  const char *  type, int  format, void *  data, int *  cause )  [static]

Definition at line 1724 of file chan_h323.c. References __oh323_new(), AST_CAUSE_DESTINATION_OUT_OF_ORDER, AST_CAUSE_INCOMPATIBLE_DESTINATION, AST_CAUSE_NORMAL_TEMPORARY_FAILURE, AST_FORMAT_MAX_AUDIO, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_RTP_DTMF, AST_STATE_DOWN, ast_strlen_zero(), ast_update_use_count(), create_addr(), ext, oh323_pvt::exten, gatekeeper_disable, global_options, h323debug, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_DEBUG, LOG_NOTICE, LOG_WARNING, oh323_pvt::nonCodecCapability, oh323_alloc(), oh323_destroy(), oh323_pvt::options, restart_monitor(), and unique. { 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]; if (h323debug) 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); oh323_destroy(pvt); if (cause) *cause = AST_CAUSE_INCOMPATIBLE_DESTINATION; return NULL; } ast_copy_string(tmp, dest, sizeof(tmp)); host = strchr(tmp, '@'); if (host) { *host = '\0'; host++; ext = tmp; } else { ext = strrchr(tmp, '/'); if (ext) *ext++ = '\0'; host = tmp; } strtok_r(host, "/", &(h323id)); if (!ast_strlen_zero(h323id)) { h323_set_id(h323id); } if (ext) { ast_copy_string(pvt->exten, ext, sizeof(pvt->exten)); } if (h323debug) ast_log(LOG_DEBUG, "Extension: %s Host: %s\n", pvt->exten, host); if (gatekeeper_disable) { if (create_addr(pvt, host)) { oh323_destroy(pvt); if (cause) *cause = AST_CAUSE_DESTINATION_OUT_OF_ORDER; return NULL; } } else { memcpy(&pvt->options, &global_options, sizeof(pvt->options)); pvt->jointcapability = pvt->options.capability; 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); if (cause) *cause = AST_CAUSE_NORMAL_TEMPORARY_FAILURE; } ast_update_use_count(); restart_monitor(); return tmpc; }

static struct ast_frame* oh323_rtp_read (  struct oh323_pvt *  pvt  )  [static]

Definition at line 758 of file chan_h323.c. References ast_channel_trylock, ast_channel_unlock, ast_dsp_process(), AST_FORMAT_ALAW, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, AST_FRAME_DTMF, AST_FRAME_VOICE, ast_getformatname(), ast_log(), ast_null_frame, ast_rtp_read(), ast_rtp_setnat(), ast_set_read_format(), ast_set_write_format(), ast_frame::frametype, LOG_DEBUG, LOG_DTMF, LOG_NOTICE, oh323_pvt::nativeformats, ast_channel::nativeformats, oh323_pvt::noInbandDtmf, oh323_pvt::options, oh323_pvt::owner, ast_channel::readformat, oh323_pvt::rtp, ast_frame::subclass, oh323_pvt::vad, and ast_channel::writeformat. Referenced by oh323_read(). { /* Retrieve audio/etc from channel. Assumes pvt->lock is already held. */ struct ast_frame *f; /* 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 | H323_DTMF_CISCO))) { return &ast_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_channel_trylock(pvt->owner)) { ast_log(LOG_NOTICE, "Format changed but channel is locked. Ignoring frame...\n"); return &ast_null_frame; } if (h323debug) 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_channel_unlock(pvt->owner); } /* Do in-band DTMF detection */ if ((pvt->options.dtmfmode & H323_DTMF_INBAND) && pvt->vad) { if ((pvt->nativeformats & (AST_FORMAT_SLINEAR | AST_FORMAT_ALAW | AST_FORMAT_ULAW))) { if (!ast_channel_trylock(pvt->owner)) { f = ast_dsp_process(pvt->owner, pvt->vad, f); ast_channel_unlock(pvt->owner); } else ast_log(LOG_NOTICE, "Unable to process inband DTMF while channel is locked\n"); } else if (pvt->nativeformats && !pvt->noInbandDtmf) { ast_log(LOG_NOTICE, "Inband DTMF is not supported on codec %s. Use RFC2833\n", ast_getformatname(f->subclass)); pvt->noInbandDtmf = 1; } if (f &&(f->frametype == AST_FRAME_DTMF)) { if (h323debug) ast_log(LOG_DTMF, "Received in-band digit %c.\n", f->subclass); } } } } return f; }

static int oh323_set_rtp_peer (  struct ast_channel *  chan, struct ast_rtp *  rtp, struct ast_rtp *  vrtp, int  codecs, int  nat_active )  [static]

Definition at line 3150 of file chan_h323.c. References ast_inet_ntoa(), ast_log(), ast_rtp_get_peer(), ast_rtp_get_us(), oh323_pvt::cd, convertcap(), LOG_ERROR, oh323_pvt::rtp, ast_channel::tech_pvt, and ast_channel::writeformat. { /* XXX Deal with Video */ struct oh323_pvt *pvt; struct sockaddr_in them; struct sockaddr_in us; char *mode; 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); #if 0 /* Native bridge still isn't ready */ h323_native_bridge(pvt->cd.call_token, ast_inet_ntoa(them.sin_addr), mode); #endif return 0; }

static int oh323_simulate_dtmf_end (  void *  data  )  [static]

Definition at line 307 of file chan_h323.c. References ast_channel_trylock, ast_channel_unlock, AST_FRAME_DTMF_END, ast_mutex_lock(), ast_mutex_unlock(), ast_queue_frame(), oh323_pvt::curDTMF, oh323_pvt::DTMFsched, ast_frame::frametype, oh323_pvt::lock, and oh323_pvt::owner. Referenced by __oh323_update_info(), and receive_digit(). { struct oh323_pvt *pvt = data; if (pvt) { ast_mutex_lock(&pvt->lock); /* Don't hold pvt lock while trying to lock the channel */ while(pvt->owner && ast_channel_trylock(pvt->owner)) { ast_mutex_unlock(&pvt->lock); usleep(1); ast_mutex_lock(&pvt->lock); } if (pvt->owner) { struct ast_frame f = { .frametype = AST_FRAME_DTMF_END, .subclass = pvt->curDTMF, .samples = 0, .src = "SIMULATE_DTMF_END", }; ast_queue_frame(pvt->owner, &f); ast_channel_unlock(pvt->owner); } pvt->DTMFsched = -1; ast_mutex_unlock(&pvt->lock); } return 0; }

static void oh323_update_info (  struct ast_channel *  c  )  [static]

Definition at line 404 of file chan_h323.c. References __oh323_update_info(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::lock, and ast_channel::tech_pvt. Referenced by oh323_answer(), oh323_call(), oh323_digit_begin(), oh323_digit_end(), and oh323_indicate(). { struct oh323_pvt *pvt = c->tech_pvt; if (pvt) { ast_mutex_lock(&pvt->lock); __oh323_update_info(c, pvt); ast_mutex_unlock(&pvt->lock); } }

static int oh323_write (  struct ast_channel *  c, struct ast_frame *  frame )  [static]

Definition at line 839 of file chan_h323.c. References __oh323_update_info(), AST_FRAME_IMAGE, AST_FRAME_VOICE, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_write(), ast_frame::frametype, oh323_pvt::lock, LOG_WARNING, ast_channel::nativeformats, ast_channel::readformat, oh323_pvt::recvonly, oh323_pvt::rtp, ast_frame::subclass, ast_channel::tech_pvt, and ast_channel::writeformat. { 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 && !pvt->recvonly) res = ast_rtp_write(pvt->rtp, frame); __oh323_update_info(c, pvt); ast_mutex_unlock(&pvt->lock); } return res; }

static int progress (  unsigned  call_reference, const char *  token, int  inband )  [static]

Definition at line 2075 of file chan_h323.c. References AST_CONTROL_PROGRESS, AST_CONTROL_RINGING, ast_log(), ast_mutex_unlock(), find_call_locked(), h323debug, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, oh323_pvt::owner, and update_state(). { struct oh323_pvt *pvt; if (h323debug) 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; } update_state(pvt, -1, (inband ? AST_CONTROL_PROGRESS : AST_CONTROL_RINGING)); ast_mutex_unlock(&pvt->lock); return 0; }

static void prune_peers (  void   )  [static]

Definition at line 3055 of file chan_h323.c. References ASTOBJ_CONTAINER_PRUNE_MARKED, oh323_destroy_peer(), and peerl. Referenced by __expire_registry(), h323_do_reload(), reload_config(), and set_config(). { /* Prune peers who still are supposed to be deleted */ ASTOBJ_CONTAINER_PRUNE_MARKED(&peerl, oh323_destroy_peer); }

static struct oh323_alias* realtime_alias (  const char *  alias  )  [static]

Definition at line 1234 of file chan_h323.c. References ast_load_realtime(), ast_variables_destroy(), ast_variable::name, ast_variable::next, ast_variable::value, and var. Referenced by find_alias(). { struct ast_variable *var, *tmp; struct oh323_alias *a; var = ast_load_realtime("h323", "name", alias, NULL); if (!var) return NULL; for (tmp = var; tmp; tmp = tmp->next) { if (!strcasecmp(tmp->name, "type") && !(!strcasecmp(tmp->value, "alias") || !strcasecmp(tmp->value, "h323"))) { ast_variables_destroy(var); return NULL; } } a = build_alias(alias, var, NULL, 1); ast_variables_destroy(var); return a; }

static struct oh323_peer* realtime_peer (  const char *  peername, struct sockaddr_in *  sin )  [static]

Definition at line 1556 of file chan_h323.c. References ast_inet_ntoa(), ast_load_realtime(), ast_variables_destroy(), ast_variable::name, ast_variable::next, ast_variable::value, and var. Referenced by authenticate_reply(), find_device(), find_peer(), and iax2_getpeername(). { struct oh323_peer *peer; struct ast_variable *var; struct ast_variable *tmp; const char *addr; /* First check on peer name */ if (peername) var = ast_load_realtime("h323", "name", peername, addr = NULL); else if (sin) /* Then check on IP address for dynamic peers */ var = ast_load_realtime("h323", "host", addr = ast_inet_ntoa(sin->sin_addr), NULL); else return NULL; if (!var) return NULL; for (tmp = var; tmp; tmp = tmp->next) { /* If this is type=user, then skip this object. */ if (!strcasecmp(tmp->name, "type") && !(!strcasecmp(tmp->value, "peer") || !strcasecmp(tmp->value, "friend"))) { ast_variables_destroy(var); return NULL; } else if (!peername && !strcasecmp(tmp->name, "name")) { peername = tmp->value; } } if (!peername) { /* Did not find peer in realtime */ ast_log(LOG_WARNING, "Cannot determine peer name for IP address %s\n", addr); ast_variables_destroy(var); return NULL; } /* Peer found in realtime, now build it in memory */ peer = build_peer(peername, var, NULL, 1); ast_variables_destroy(var); return peer; }

static struct oh323_user* realtime_user (  const call_details_t *  cd  )  [static]

Definition at line 1446 of file chan_h323.c. References ast_load_realtime(), ast_variables_destroy(), ast_variable::name, ast_variable::next, userbyalias, ast_variable::value, and var. Referenced by check_access(), and find_user(). { struct ast_variable *var, *tmp; struct oh323_user *user; char *username; if (userbyalias) var = ast_load_realtime("h323", "name", username = cd->call_source_aliases, NULL); else { username = (char *)NULL; var = ast_load_realtime("h323", "host", cd->sourceIp, NULL); } if (!var) return NULL; for (tmp = var; tmp; tmp = tmp->next) { if (!strcasecmp(tmp->name, "type") && !(!strcasecmp(tmp->value, "user") || !strcasecmp(tmp->value, "friend"))) { ast_variables_destroy(var); return NULL; } else if (!username && !strcasecmp(tmp->name, "name")) username = tmp->value; } if (!username) { ast_log(LOG_WARNING, "Cannot determine user name for IP address %s\n", cd->sourceIp); ast_variables_destroy(var); return NULL; } user = build_user(username, var, NULL, 1); ast_variables_destroy(var); return user; }

static int receive_digit (  unsigned  call_reference, char  digit, const char *  token, int  duration )  [static]

Callback for sending digits from H.323 up to asterisk Definition at line 1829 of file chan_h323.c. References ast_channel_trylock, ast_channel_unlock, AST_CONTROL_FLASH, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_log(), ast_mutex_unlock(), ast_queue_control(), ast_queue_frame(), ast_sched_add(), ast_sched_del(), oh323_pvt::curDTMF, oh323_pvt::DTMFsched, find_call_locked(), ast_frame::frametype, h323debug, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, oh323_pvt::newcontrol, oh323_pvt::newdigit, oh323_pvt::newduration, oh323_simulate_dtmf_end(), oh323_pvt::owner, and ast_frame::subclass. Referenced by load_module(). { struct oh323_pvt *pvt; int res; pvt = find_call_locked(call_reference, token); if (!pvt) { ast_log(LOG_ERROR, "Received digit '%c' (%u ms) for call %s without private structure\n", digit, duration, token); return -1; } if (h323debug) ast_log(LOG_DTMF, "Received %s digit '%c' (%u ms) for call %s\n", (digit == ' ' ? "update for" : "new"), (digit == ' ' ? pvt->curDTMF : digit), duration, token); if (pvt->owner && !ast_channel_trylock(pvt->owner)) { if (digit == '!') res = ast_queue_control(pvt->owner, AST_CONTROL_FLASH); else { struct ast_frame f = { .frametype = AST_FRAME_DTMF_END, .subclass = digit, .samples = duration * 8, .src = "SEND_DIGIT", }; if (digit == ' ') { /* signalUpdate message */ f.subclass = pvt->curDTMF; if (pvt->DTMFsched >= 0) { ast_sched_del(sched, pvt->DTMFsched); pvt->DTMFsched = -1; } } else { /* Regular input or signal message */ if (duration) { /* This is a signal, signalUpdate follows */ f.frametype = AST_FRAME_DTMF_BEGIN; if (pvt->DTMFsched >= 0) ast_sched_del(sched, pvt->DTMFsched); pvt->DTMFsched = ast_sched_add(sched, duration, oh323_simulate_dtmf_end, pvt); if (h323debug) ast_log(LOG_DTMF, "Scheduled DTMF END simulation for %d ms, id=%d\n", duration, pvt->DTMFsched); } pvt->curDTMF = digit; } res = ast_queue_frame(pvt->owner, &f); } ast_channel_unlock(pvt->owner); } else { if (digit == '!') pvt->newcontrol = AST_CONTROL_FLASH; else { pvt->newduration = duration; pvt->newdigit = digit; } res = 0; } ast_mutex_unlock(&pvt->lock); return res; }

static const char* redirectingreason2str (  int  redirectingreason  )  [static]

Definition at line 268 of file chan_h323.c. Referenced by __oh323_new(). { switch (redirectingreason) { case 0: return "UNKNOWN"; case 1: return "BUSY"; case 2: return "NO_REPLY"; case 0xF: return "UNCONDITIONAL"; default: return "NOREDIRECT"; } }

static int reload (  void   )  [static]

Definition at line 3083 of file chan_h323.c. References h323_reload(). { return h323_reload(0, 0, NULL); }

static int reload_config (  int  is_reload  )  [static]

Definition at line 2795 of file chan_h323.c. References acceptAnonymous, ahp, ast_category_browse(), ast_config_destroy(), ast_config_load(), ast_log(), ast_true(), ast_variable_browse(), ast_variable_retrieve(), ASTOBJ_CONTAINER_LINK, ASTOBJ_UNREF, bindaddr, build_user(), config, default_context, default_jbconf, format, gatekeeper, gatekeeper_disable, gatekeeper_discover, gkroute, GLOBAL_CAPABILITY, global_jbconf, global_options, h323_signalling_port, hp, LOG_NOTICE, oh323_destroy_user(), tos, userbyalias, and userl. Referenced by h323_do_reload(), iax2_prune_realtime(), iax2_reload(), load_module(), mgcp_do_reload(), misdn_reload(), and reload(). { int format; struct ast_config *cfg, *ucfg; 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; const char *utype; int is_user, is_peer, is_alias; char _gatekeeper[100]; int gk_discover, gk_disable, gk_changed; 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(); } ast_copy_string(_gatekeeper, gatekeeper, sizeof(_gatekeeper)); gk_discover = gatekeeper_discover; gk_disable = gatekeeper_disable; memset(&bindaddr, 0, sizeof(bindaddr)); memset(&global_options, 0, sizeof(global_options)); global_options.fastStart = 1; global_options.h245Tunneling = 1; global_options.dtmfcodec[0] = H323_DTMF_RFC2833_PT; global_options.dtmfcodec[1] = H323_DTMF_CISCO_PT; global_options.dtmfmode = 0; global_options.holdHandling = 0; global_options.capability = GLOBAL_CAPABILITY; global_options.bridge = 1; /* Do native bridging by default */ strcpy(default_context, "default"); h323_signalling_port = 1720; gatekeeper_disable = 1; gatekeeper_discover = 0; gkroute = 0; userbyalias = 1; acceptAnonymous = 1; tos = 0; /* Copy the default jb config over global_jbconf */ memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf)); /* Load configuration from users.conf */ ucfg = ast_config_load("users.conf"); if (ucfg) { struct ast_variable *gen; int genhas_h323; const char *has_h323; genhas_h323 = ast_true(ast_variable_retrieve(ucfg, "general", "hash323")); gen = ast_variable_browse(ucfg, "general"); for (cat = ast_category_browse(ucfg, NULL); cat; cat = ast_category_browse(ucfg, cat)) { if (strcasecmp(cat, "general")) { has_h323 = ast_variable_retrieve(ucfg, cat, "hash323"); if (ast_true(has_h323) || (!has_h323 && genhas_h323)) { user = build_user(cat, gen, ast_variable_browse(ucfg, cat), 0); if (user) { ASTOBJ_CONTAINER_LINK(&userl, user); ASTOBJ_UNREF(user, oh323_destroy_user); } } } } ast_config_destroy(ucfg); } for (v = ast_variable_browse(cfg, "general"); v; v = v->next) { /* handle jb conf */ if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) continue; /* 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")) {