Thu Apr 28 2011 17:15:40

Asterisk developer's documentation


chan_h323.c File Reference

This file is part of the chan_h323 driver for Asterisk. More...

#include "asterisk.h"
#include <sys/types.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 <netdb.h>
#include <fcntl.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/musiconhold.h"
#include "asterisk/pbx.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  h323_alias_list
 H323 alias list. More...
struct  h323_peer_list
 H323 peer list. More...
struct  h323_user_list
 H323 User list. More...
struct  oh323_pvt
 Private structure of a OpenH323 channel. 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)
 Private structure should be locked on a call.
static int __oh323_rtp_create (struct oh323_pvt *pvt)
static void __oh323_update_info (struct ast_channel *c, struct oh323_pvt *pvt)
 Channel and private structures should be already locked.
static void __reg_module (void)
static void __unreg_module (void)
static int answer_call (unsigned call_reference, const char *token)
 Call-back function to start PBX when OpenH323 ready to serve incoming call.
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 (const char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static void chan_ringing (unsigned call_reference, const char *token)
 Call-back function to signal asterisk that the channel is ringing Returns nothing.
static void cleanup_call_details (call_details_t *cd)
static void cleanup_connection (unsigned call_reference, const char *call_token)
 Call-back function to cleanup communication Returns nothing,.
static void connection_made (unsigned call_reference, const char *token)
 Call-back function to signal asterisk that the channel has been answered Returns nothing.
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)
 Callback function used to inform the H.323 stack of the local rtp ip/port details.
static struct oh323_alias * find_alias (const char *source_aliases, int realtime)
 Find a call by alias.
static struct oh323_pvtfind_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_reload (void)
static int h323_reload (void)
static char * handle_cli_h323_cycle_gk (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_h323_hangup (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_h323_reload (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_h323_set_debug (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_h323_set_trace (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_h323_show_tokens (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_h323_show_version (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
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_pvtoh323_alloc (int callid)
static int oh323_answer (struct ast_channel *c)
static int oh323_call (struct ast_channel *c, char *dest, int timeout)
 Make a call over the specified channel to the specified destination. Returns -1 on error, 0 on success.
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)
 Send (play) the specified digit to the channel.
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_frameoh323_read (struct ast_channel *c)
static struct ast_channeloh323_request (const char *type, int format, void *data, int *cause)
static struct ast_frameoh323_rtp_read (struct oh323_pvt *pvt)
 Retrieve audio/etc from channel. Assumes pvt->lock is already held.
static int oh323_set_rtp_peer (struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, struct ast_rtp *trtp, int codecs, int nat_active)
static int oh323_simulate_dtmf_end (const void *data)
static void oh323_update_info (struct ast_channel *c)
 Only channel structure should be locked.
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)
 Callback for sending digits from H.323 up to asterisk.
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)
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)
 Call-back function for incoming calls.
static int setup_outgoing_call (call_details_t *cd)
 Call-back function to establish an outgoing H.323 call.
static void setup_rtp_connection (unsigned call_reference, const char *remoteIp, int remotePort, const char *token, int pt)
 Call-back function passing remote ip/port information from H.323 to asterisk.
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 struct ast_module_info
__MODULE_INFO_SECTION 
__mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "The NuFone Network's OpenH323 Channel Driver" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .reload = reload, }
static int acceptAnonymous = 1
static struct h323_alias_list aliasl
static struct ast_module_infoast_module_info = &__mod_info
static struct sockaddr_in bindaddr
static ast_mutex_t caplock = AST_MUTEX_INIT_VALUE
 Protect the H.323 capabilities list, to avoid more than one channel to set the capabilities simultaneaously in the h323 stack.
static struct ast_cli_entry cli_h323 []
static struct ast_cli_entry cli_h323_reload
static const char config [] = "h323.conf"
static unsigned int cos = 0
static char default_context [AST_MAX_CONTEXT] = "default"
static struct ast_jb_conf default_jbconf
 Global jitterbuffer configuration - by default, jb is disabled.
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 ast_mutex_t h323_reload_lock = AST_MUTEX_INIT_VALUE
 Protect the reload process.
static int h323_reloading = 0
static int h323_signalling_port = 1720
int h323debug
struct oh323_pvtiflist
static ast_mutex_t iflock = AST_MUTEX_INIT_VALUE
static struct io_contextio
static pthread_t monitor_thread = AST_PTHREADT_NULL
 This is the thread for the monitor which checks for input on the channels which are not currently in use.
static ast_mutex_t monlock = AST_MUTEX_INIT_VALUE
 Protect the H.323 monitoring thread, so only one process can kill or start it, and not when it's doing something critical.
static struct ast_rtp_protocol oh323_rtp
static 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 h323_peer_list peerl
static struct sched_contextsched
static char secret [50]
static const char tdesc [] = "The NuFone Network's Open H.323 Channel Driver"
static unsigned int tos = 0
static unsigned int unique = 0
static int userbyalias = 1
static struct h323_user_list userl

Detailed Description

This file is part of the chan_h323 driver for Asterisk.

Author:
Jeremy McNamara
See also
  • Config_h323
ExtRef:
OpenH323 http://www.voxgratia.org/

Definition in file chan_h323.c.


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 132 of file chan_h323.c.

Referenced by reload_config().


Function Documentation

static void __oh323_destroy ( struct oh323_pvt pvt) [static]

Definition at line 443 of file chan_h323.c.

References ast_channel_lock, ast_channel_unlock, ast_debug, ast_dsp_free(), ast_free, ast_log(), ast_mutex_destroy(), ast_mutex_unlock(), ast_rtp_destroy(), AST_SCHED_DEL, oh323_pvt::cd, cleanup_call_details(), oh323_pvt::DTMFsched, iflist, oh323_pvt::lock, LOG_WARNING, ast_channel::name, oh323_pvt::next, oh323_pvt::owner, oh323_pvt::rtp, ast_channel::tech_pvt, and oh323_pvt::vad.

Referenced by do_monitor(), and oh323_destroy().

{
   struct oh323_pvt *cur, *prev = NULL;

   AST_SCHED_DEL(sched, pvt->DTMFsched);

   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_debug(1, "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);
      ast_free(pvt);
   }
}
static struct ast_channel* __oh323_new ( struct oh323_pvt pvt,
int  state,
const char *  host 
) [static, read]

Private structure should be locked on a call.

Definition at line 1003 of file chan_h323.c.

References __oh323_rtp_create(), accountcode, oh323_pvt::accountcode, ast_channel::amaflags, oh323_pvt::amaflags, ast_best_codec(), ast_channel_alloc(), ast_channel_set_fd(), ast_codec_choose(), ast_copy_string(), 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, cid_name, cid_num, ast_callerid::cid_pres, ast_callerid::cid_rdnis, ast_callerid::cid_ton, ast_channel::context, oh323_pvt::context, DSP_FEATURE_DIGIT_DETECT, ast_channel::exten, oh323_pvt::exten, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_WARNING, ast_channel::name, 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, ast_module_info::self, 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, pvt->accountcode, pvt->exten, pvt->context, pvt->amaflags, "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 (!pvt->rtp)
         __oh323_rtp_create(pvt);
#if 0
      ast_channel_set_fd(ch, 0, ast_rtp_fd(pvt->rtp));
      ast_channel_set_fd(ch, 1, ast_rtcp_fd(pvt->rtp));
#endif
#ifdef VIDEO_SUPPORT
      if (pvt->vrtp) {
         ast_channel_set_fd(ch, 2, ast_rtp_fd(pvt->vrtp));
         ast_channel_set_fd(ch, 3, ast_rtcp_fd(pvt->vrtp));
      }
#endif
#ifdef T38_SUPPORT
      if (pvt->udptl) {
         ast_channel_set_fd(ch, 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_DIGIT_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_ani = ast_strdup(cid_num);

      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 = ast_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 955 of file chan_h323.c.

References ast_channel_set_fd(), ast_channel_trylock, ast_channel_unlock, ast_debug, 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_setqos(), bindaddr, oh323_pvt::dtmf_pt, errno, global_jbconf, oh323_pvt::lock, LOG_ERROR, LOG_WARNING, oh323_pvt::options, oh323_pvt::owner, oh323_pvt::peer_prefs, oh323_pvt::peercapability, oh323_pvt::rtp, and oh323_pvt::update_rtp_info.

Referenced by __oh323_new(), 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_debug(1, "Created RTP channel\n");

   ast_rtp_setqos(pvt->rtp, tos, cos, "H323 RTP");

   if (h323debug)
      ast_debug(1, "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);
      ast_channel_set_fd(pvt->owner, 0, ast_rtp_fd(pvt->rtp));
      ast_channel_set_fd(pvt->owner, 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]

Channel and private structures should be already locked.

Definition at line 332 of file chan_h323.c.

References ast_channel::_softhangup, ast_channel_set_fd(), ast_debug, 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_with_cause(), 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_frame::frametype, global_jbconf, oh323_pvt::hangupcause, ast_channel::hangupcause, LOG_DTMF, ast_channel::name, 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, 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_debug(1, "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_debug(1, "Process pending hangup for %s\n", c->name);
      c->_softhangup |= AST_SOFTHANGUP_DEV;
      c->hangupcause = pvt->hangupcause;
      ast_queue_hangup_with_cause(c, pvt->hangupcause);
      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,
         .len = pvt->newduration,
         .src = "UPDATE_INFO",
      };
      if (pvt->newdigit == ' ') {      /* signalUpdate message */
         f.subclass = pvt->curDTMF;
         if (pvt->DTMFsched >= 0) {
            AST_SCHED_DEL(sched, pvt->DTMFsched);
         }
      } else {                /* Regular input or signal message */
         if (pvt->newduration) {    /* This is a signal, signalUpdate follows */
            f.frametype = AST_FRAME_DTMF_BEGIN;
            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);
         ast_channel_set_fd(c, 0, ast_rtp_fd(pvt->rtp));
         ast_channel_set_fd(c, 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 void __reg_module ( void  ) [static]

Definition at line 3407 of file chan_h323.c.

static void __unreg_module ( void  ) [static]

Definition at line 3407 of file chan_h323.c.

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 2224 of file chan_h323.c.

References __oh323_new(), AST_CAUSE_UNALLOCATED, ast_copy_string(), ast_debug, ast_exists_extension(), ast_log(), ast_mutex_unlock(), AST_STATE_RINGING, oh323_pvt::cd, oh323_pvt::context, oh323_pvt::exten, find_call_locked(), oh323_pvt::lock, 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_debug(1, "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_debug(1, "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;
}
static struct oh323_alias* build_alias ( const char *  name,
struct ast_variable v,
struct ast_variable alt,
int  realtime 
) [static, read]

Definition at line 1195 of file chan_h323.c.

References aliasl, ast_calloc, ast_copy_string(), ast_log(), ASTOBJ_CONTAINER_FIND_UNLINK_FULL, ASTOBJ_INIT, ASTOBJ_UNMARK, LOG_WARNING, ast_variable::name, ast_variable::next, and ast_variable::value.

Referenced by realtime_alias(), and reload_config().

{
   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 = ast_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, read]

Definition at line 1482 of file chan_h323.c.

References ast_append_ha(), ast_calloc, ast_copy_string(), ast_free_ha(), ast_get_ip(), ast_log(), ast_strlen_zero(), ast_true(), ast_variables_destroy(), ASTOBJ_CONTAINER_FIND_UNLINK_FULL, ASTOBJ_INIT, ASTOBJ_UNMARK, ASTOBJ_UNREF, ast_variable::lineno, LOG_ERROR, ast_variable::name, ast_variable::next, oh323_destroy_peer(), peerl, update_common_options(), and ast_variable::value.

Referenced by realtime_peer(), and reload_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 = ast_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));
      } else if (!strcasecmp(v->name, "hasvoicemail")) {
         if (ast_true(v->value) && ast_strlen_zero(peer->mailbox)) {
            ast_copy_string(peer->mailbox, name, 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 ( const char *  name,
struct ast_variable v,
struct ast_variable alt,
int  realtime 
) [static, read]

Definition at line 1364 of file chan_h323.c.

References ast_append_ha(), ast_calloc, ast_cdr_amaflags2int(), ast_copy_string(), ast_free_ha(), ast_get_ip(), ast_log(), ast_variables_destroy(), ASTOBJ_CONTAINER_FIND_UNLINK_FULL, ASTOBJ_INIT, ASTOBJ_UNMARK, ASTOBJ_UNREF, format, ast_variable::lineno, LOG_ERROR, LOG_WARNING, ast_variable::name, ast_variable::next, oh323_destroy_user(), update_common_options(), user, userl, and ast_variable::value.

Referenced by realtime_user(), and reload_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 = ast_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 2315 of file chan_h323.c.

References AST_CONTROL_RINGING, ast_debug, ast_log(), ast_mutex_unlock(), AST_STATE_RINGING, find_call_locked(), oh323_pvt::lock, LOG_ERROR, oh323_pvt::owner, and update_state().

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "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 407 of file chan_h323.c.

References ast_free.

Referenced by __oh323_destroy(), cleanup_connection(), setup_incoming_call(), and setup_outgoing_call().

{
   if (cd->call_token) {
      ast_free(cd->call_token);
      cd->call_token = NULL;
   }
   if (cd->call_source_aliases) {
      ast_free(cd->call_source_aliases);
      cd->call_source_aliases = NULL;
   }
   if (cd->call_dest_alias) {
      ast_free(cd->call_dest_alias);
      cd->call_dest_alias = NULL;
   }
   if (cd->call_source_name) {
      ast_free(cd->call_source_name);
      cd->call_source_name = NULL;
   }
   if (cd->call_source_e164) {
      ast_free(cd->call_source_e164);
      cd->call_source_e164 = NULL;
   }
   if (cd->call_dest_e164) {
      ast_free(cd->call_dest_e164);
      cd->call_dest_e164 = NULL;
   }
   if (cd->sourceIp) {
      ast_free(cd->sourceIp);
      cd->sourceIp = NULL;
   }
   if (cd->redirect_number) {
      ast_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 2341 of file chan_h323.c.

References ast_channel::_softhangup, oh323_pvt::alreadygone, ast_channel_trylock, ast_channel_unlock, ast_debug, 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(), oh323_pvt::lock, LOG_NOTICE, oh323_pvt::owner, oh323_pvt::rtp, and oh323_pvt::vad.

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "Cleaning connection to %s\n", call_token);

   while (1) {
      pvt = find_call_locked(call_reference, call_token);
      if (!pvt) {
         if (h323debug)
            ast_debug(1, "No connection for %s\n", call_token);
         return;
      }
      if (!pvt->owner || !ast_channel_trylock(pvt->owner))
         break;
#if 1
      ast_log(LOG_NOTICE, "Avoiding H.323 destory deadlock on %s\n", call_token);
#ifdef DEBUG_THREADS
      /* XXX to be completed
       * If we want to print more info on who is holding the lock,
       * implement the relevant code in lock.h and use the routines
       * supplied there.
       */
#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_debug(1, "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 2049 of file chan_h323.c.

References AST_CONTROL_ANSWER, ast_debug, ast_log(), ast_mutex_unlock(), oh323_pvt::connection_established, find_call_locked(), oh323_pvt::lock, LOG_ERROR, oh323_pvt::outgoing, and update_state().

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "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 3166 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 1654 of file chan_h323.c.

References ast_copy_string(), ast_gethostbyname(), ast_log(), AST_RTP_DTMF, ASTOBJ_UNREF, find_peer(), h323_signalling_port, hp, oh323_pvt::jointcapability, LOG_WARNING, oh323_pvt::nonCodecCapability, oh323_destroy_peer(), oh323_pvt::options, and oh323_pvt::sa.

Referenced by oh323_request().

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

Definition at line 2533 of file chan_h323.c.

References __oh323_destroy(), ast_io_wait(), ast_mutex_lock(), ast_mutex_trylock(), ast_mutex_unlock(), ast_sched_runq(), ast_sched_wait(), ast_verb, h323_do_reload(), h323_reload_lock, h323_reloading, iflist, iflock, oh323_pvt::lock, monlock, oh323_pvt::needdestroy, and oh323_pvt::next.

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) {
         ast_verb(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, read]

Callback function used to inform the H.323 stack of the local rtp ip/port details.

Returns:
Returns the local RTP information

Definition at line 1899 of file chan_h323.c.

References __oh323_rtp_create(), ast_calloc, ast_copy_string(), ast_debug, ast_free, ast_inet_ntoa(), ast_log(), ast_mutex_unlock(), ast_rtp_get_us(), find_call_locked(), oh323_pvt::lock, LOG_ERROR, and oh323_pvt::rtp.

Referenced by load_module().

{
   struct oh323_pvt *pvt;
   struct sockaddr_in us;
   struct rtp_info *info;

   info = ast_calloc(1, sizeof(*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) {
      ast_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);
      ast_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_debug(1, "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, read]

Find a call by alias.

Definition at line 1815 of file chan_h323.c.

References aliasl, ASTOBJ_CONTAINER_FIND, and realtime_alias().

Referenced by 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, read]

Definition at line 1148 of file chan_h323.c.

References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::cd, iflist, iflock, 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) && (pvt->cd.call_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, read]

Definition at line 1636 of file chan_h323.c.

References ast_debug, ast_inet_ntoa(), ASTOBJ_CONTAINER_FIND, ASTOBJ_CONTAINER_FIND_FULL, oh323_addrcmp(), peerl, and realtime_peer().

Referenced by create_addr().

{
   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_debug(1, "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, read]

Definition at line 1606 of file chan_h323.c.

References ast_debug, ASTOBJ_CONTAINER_FIND, ASTOBJ_CONTAINER_FIND_FULL, oh323_addrcmp_str(), realtime_user(), and userl.

Referenced by setup_incoming_call().

{
   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_debug(1, "Could not find user by name %s or address %s\n", cd->call_source_aliases, cd->sourceIp);

   return u;
}
static int h323_do_reload ( void  ) [static]

Definition at line 3123 of file chan_h323.c.

References reload_config().

Referenced by do_monitor().

{
   reload_config(1);
   return 0;
}
static int h323_reload ( void  ) [static]

Definition at line 3089 of file chan_h323.c.

References ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), h323_reload_lock, and restart_monitor().

Referenced by handle_cli_h323_reload(), and 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 char* handle_cli_h323_cycle_gk ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 2685 of file chan_h323.c.

References ast_cli_args::argc, ast_log(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, LOG_ERROR, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 cycle gk";
      e->usage =
         "Usage: h323 cycle gk\n"
         "       Manually re-register with the Gatekeper (Currently Disabled)\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != 3)
      return CLI_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 CLI_SUCCESS;
}
static char* handle_cli_h323_hangup ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 2712 of file chan_h323.c.

References ast_cli_args::argc, ast_cli_args::argv, ast_verb, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 hangup";
      e->usage =
         "Usage: h323 hangup <token>\n"
         "       Manually try to hang up the call identified by <token>\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != 3)
      return CLI_SHOWUSAGE;
   if (h323_soft_hangup(a->argv[2])) {
      ast_verb(3, "Hangup succeeded on %s\n", a->argv[2]);
   } else {
      ast_verb(3, "Hangup failed for %s\n", a->argv[2]);
   }
   return CLI_SUCCESS;
}
static char* handle_cli_h323_reload ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 3102 of file chan_h323.c.

References ast_cli_args::argc, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, h323_reload(), and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 reload";
      e->usage =
         "Usage: h323 reload\n"
         "       Reloads H.323 configuration from h323.conf\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != 2)
      return CLI_SHOWUSAGE;

   h323_reload();

   return CLI_SUCCESS;
}
static char* handle_cli_h323_set_debug ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 2662 of file chan_h323.c.

References ast_cli_args::argc, ast_cli_entry::args, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 set debug [on|off]";
      e->usage =
         "Usage: h323 set debug [on|off]\n"
         "       Enable/Disable H.323 debugging output\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != e->args)
      return CLI_SHOWUSAGE;
   if (strcasecmp(a->argv[3], "on") && strcasecmp(a->argv[3], "off"))
      return CLI_SHOWUSAGE;

   h323debug = (strcasecmp(a->argv[3], "on")) ? 0 : 1;
   ast_cli(a->fd, "H.323 Debugging %s\n", h323debug ? "Enabled" : "Disabled");
   return CLI_SUCCESS;
}
static char* handle_cli_h323_set_trace ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 2633 of file chan_h323.c.

References ast_cli_args::argc, ast_cli_entry::args, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 set trace [on|off]";
      e->usage =
         "Usage: h323 set trace (on|off|<trace level>)\n"
         "       Enable/Disable H.323 stack tracing for debugging purposes\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != e->args)
      return CLI_SHOWUSAGE;
   if (!strcasecmp(a->argv[3], "off")) {
      h323_debug(0, 0);
      ast_cli(a->fd, "H.323 Trace Disabled\n");
   } else if (!strcasecmp(a->argv[3], "on")) {
      h323_debug(1, 1);
      ast_cli(a->fd, "H.323 Trace Enabled\n");
   } else {
      int tracelevel = atoi(a->argv[3]);
      h323_debug(1, tracelevel);
      ast_cli(a->fd, "H.323 Trace Enabled (Trace Level: %d)\n", tracelevel);
   }
   return CLI_SUCCESS;
}
static char* handle_cli_h323_show_tokens ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 2735 of file chan_h323.c.

References ast_cli_args::argc, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 show tokens";
      e->usage =
         "Usage: h323 show tokens\n"
         "       Print out all active call tokens\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != 3)
      return CLI_SHOWUSAGE;

   h323_show_tokens();

   return CLI_SUCCESS;
}
static char* handle_cli_h323_show_version ( struct ast_cli_entry e,
int  cmd,
struct ast_cli_args a 
) [static]

Definition at line 2756 of file chan_h323.c.

References ast_cli_args::argc, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, and ast_cli_entry::usage.

{
   switch (cmd) {
   case CLI_INIT:
      e->command = "h323 show version";
      e->usage =
         "Usage: h323 show version\n"
         "     Show the version of the H.323 library in use\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != 3)
      return CLI_SHOWUSAGE;

   h323_show_version();
   
   return CLI_SUCCESS;
}
static void hangup_connection ( unsigned int  call_reference,
const char *  token,
int  cause 
) [static]

Definition at line 2394 of file chan_h323.c.

References ast_channel::_softhangup, ast_channel_trylock, ast_channel_unlock, ast_debug, ast_mutex_unlock(), ast_queue_hangup_with_cause(), AST_SOFTHANGUP_DEV, cause, find_call_locked(), oh323_pvt::hangupcause, ast_channel::hangupcause, oh323_pvt::lock, oh323_pvt::needhangup, and oh323_pvt::owner.

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "Hanging up connection to %s with cause %d\n", token, cause);

   pvt = find_call_locked(call_reference, token);
   if (!pvt) {
      if (h323debug)
         ast_debug(1, "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_with_cause(pvt->owner, cause);
      ast_channel_unlock(pvt->owner);
   }
   else {
      pvt->needhangup = 1;
      pvt->hangupcause = cause;
      if (h323debug)
         ast_debug(1, "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 3226 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(), connection_made(), external_rtp_create(), hangup_connection(), io_context_create(), io_context_destroy(), LOG_ERROR, LOG_NOTICE, LOG_WARNING, oh323_destroy_alias(), oh323_destroy_peer(), oh323_destroy_user(), peerl, receive_digit(), reload_config(), remote_hold(), restart_monitor(), sched_context_create(), sched_context_destroy(), 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_DECLINE;
      }
      /* 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 1624 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 1601 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, read]

Definition at line 1105 of file chan_h323.c.

References ast_calloc, ast_copy_string(), ast_free, 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, iflist, iflock, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_ERROR, 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 = ast_calloc(1, sizeof(*pvt));
   if (!pvt) {
      ast_log(LOG_ERROR, "Couldn't allocate private structure. This is bad\n");
      return NULL;
   }
   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 = ast_calloc(1, 128);
      }
      if (!pvt->cd.call_token) {
         ast_log(LOG_ERROR, "Not enough memory to alocate call token\n");
         ast_rtp_destroy(pvt->rtp);
         ast_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 658 of file chan_h323.c.

References ast_channel::_state, ast_debug, ast_free, ast_mutex_lock(), ast_mutex_unlock(), ast_setstate(), AST_STATE_UP, ast_strdup, oh323_pvt::cd, oh323_pvt::lock, ast_channel::name, oh323_update_info(), and ast_channel::tech_pvt.

{
   int res;
   struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
   char *token;

   if (h323debug)
      ast_debug(1, "Answering on %s\n", c->name);

   ast_mutex_lock(&pvt->lock);
   token = pvt->cd.call_token ? ast_strdup(pvt->cd.call_token) : NULL;
   ast_mutex_unlock(&pvt->lock);
   res = h323_answering_call(token, 0);
   if (token)
      ast_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 579 of file chan_h323.c.

References ast_channel::_state, ast_copy_string(), ast_debug, ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_STATE_DOWN, AST_STATE_RESERVED, ast_strlen_zero(), ast_transfercapability2str(), ast_verb, 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_NOTICE, LOG_WARNING, ast_channel::name, oh323_update_info(), oh323_pvt::options, oh323_pvt::outgoing, pbx_builtin_getvar_helper(), oh323_pvt::sa, ast_channel::tech_pvt, and ast_channel::transfercapability.

{
   int res = 0;
   struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt;
   const char *addr;
   char called_addr[1024];

   if (h323debug) {
      ast_debug(1, "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") || !strcasecmp(addr, "NOANSWER"))
      /* the NOANSWER is to match diversion-reason from chan_sip, (which never reads PRIREDIRECTREASON) */
         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;

   ast_verb(3, "Requested transfer capability: 0x%.2x - %s\n", c->transfercapability, ast_transfercapability2str(c->transfercapability));
   if (h323debug)
      ast_debug(1, "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 488 of file chan_h323.c.

References __oh323_destroy(), ast_debug, ast_mutex_lock(), ast_mutex_unlock(), iflock, oh323_pvt::lock, ast_channel::name, and oh323_pvt::owner.

Referenced by oh323_request(), and setup_incoming_call().

{
   if (h323debug) {
      ast_debug(1, "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 279 of file chan_h323.c.

References ast_debug, and ast_free.

Referenced by delete_aliases(), load_module(), reload_config(), and unload_module().

{
   if (h323debug)
      ast_debug(1, "Destroying alias '%s'\n", alias->name);
   ast_free(alias);
}
static void oh323_destroy_peer ( struct oh323_peer *  peer) [static]

Definition at line 294 of file chan_h323.c.

References ast_debug, ast_free, and ast_free_ha().

Referenced by build_peer(), create_addr(), load_module(), prune_peers(), reload_config(), and unload_module().

{
   if (h323debug)
      ast_debug(1, "Destroying peer '%s'\n", peer->name);
   ast_free_ha(peer->ha);
   ast_free(peer);
}
static void oh323_destroy_user ( struct oh323_user *  user) [static]

Definition at line 286 of file chan_h323.c.

References ast_debug, ast_free, and ast_free_ha().

Referenced by build_user(), delete_users(), load_module(), reload_config(), setup_incoming_call(), and unload_module().

{
   if (h323debug)
      ast_debug(1, "Destroying user '%s'\n", user->name);
   ast_free_ha(user->ha);
   ast_free(user);
}
static int oh323_digit_begin ( struct ast_channel c,
char  digit 
) [static]

Definition at line 499 of file chan_h323.c.

References ast_free, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_begin(), ast_strdup, oh323_pvt::cd, oh323_pvt::dtmf_pt, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, ast_channel::name, oh323_update_info(), oh323_pvt::options, oh323_pvt::rtp, 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 ? ast_strdup(pvt->cd.call_token) : NULL;
      ast_mutex_unlock(&pvt->lock);
      h323_send_tone(token, digit);
      if (token) {
         ast_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 540 of file chan_h323.c.

References ast_free, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_end(), ast_strdup, oh323_pvt::cd, oh323_pvt::dtmf_pt, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, ast_channel::name, oh323_update_info(), oh323_pvt::options, oh323_pvt::rtp, 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, duration %d\n", digit, c->name, duration);
      }
      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, duration %d\n", digit, c->name, duration);
      }
      pvt->txDtmfDigit = ' ';
      token = pvt->cd.call_token ? ast_strdup(pvt->cd.call_token) : NULL;
      ast_mutex_unlock(&pvt->lock);
      h323_send_tone(token, ' ');
      if (token) {
         ast_free(token);
      }
   }
   oh323_update_info(c);
   return 0;
}
static int oh323_fixup ( struct ast_channel oldchan,
struct ast_channel newchan 
) [static]

Definition at line 941 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 3141 of file chan_h323.c.

References ast_mutex_lock(), ast_mutex_unlock(), AST_RTP_GET_FAILED, AST_RTP_TRY_NATIVE, AST_RTP_TRY_PARTIAL, 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_TRY_PARTIAL;

   if (!(pvt = (struct oh323_pvt *)chan->tech_pvt))
      return AST_RTP_GET_FAILED;

   ast_mutex_lock(&pvt->lock);
   *rtp = pvt->rtp;
#if 0
   if (pvt->options.bridge) {
      res = AST_RTP_TRY_NATIVE;
   }
#endif
   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 3161 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 681 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_debug, ast_free, ast_log(), ast_module_unref(), ast_mutex_lock(), ast_mutex_unlock(), ast_strdup, cause, oh323_pvt::cd, oh323_pvt::hangupcause, ast_channel::hangupcause, oh323_pvt::lock, LOG_WARNING, ast_channel::name, oh323_pvt::needdestroy, oh323_pvt::owner, pbx_builtin_getvar_helper(), ast_module_info::self, 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_debug(1, "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 ? ast_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");
         }
         ast_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 856 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_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_UNHOLD, ast_debug, ast_free, ast_log(), ast_moh_start(), ast_moh_stop(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_change_source(), ast_rtp_new_source(), AST_SOFTHANGUP_DEV, ast_softhangup_nolock(), AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, ast_strdup, oh323_pvt::cd, oh323_pvt::got_progress, oh323_pvt::lock, LOG_WARNING, ast_channel::name, oh323_update_info(), oh323_pvt::rtp, 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 ? ast_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_debug(1, "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_SRCUPDATE:
      ast_rtp_new_source(pvt->rtp);
      res = 0;
      break;
   case AST_CONTROL_SRCCHANGE:
      ast_rtp_change_source(pvt->rtp);
      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_debug(1, "OH323: Indicated %d on %s, res=%d\n", condition, token, res);
   if (token)
      ast_free(token);
   oh323_update_info(c);

   return res;
}
static struct ast_frame * oh323_read ( struct ast_channel c) [static, read]

Definition at line 803 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, ast_channel::name, 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, read]

Definition at line 1726 of file chan_h323.c.

References __oh323_new(), AST_CAUSE_DESTINATION_OUT_OF_ORDER, AST_CAUSE_INCOMPATIBLE_DESTINATION, AST_CAUSE_NORMAL_TEMPORARY_FAILURE, ast_copy_string(), ast_debug, AST_FORMAT_AUDIO_MASK, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_RTP_DTMF, AST_STATE_DOWN, ast_strlen_zero(), ast_update_use_count(), caplock, create_addr(), ext, oh323_pvt::exten, format, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_NOTICE, LOG_WARNING, oh323_pvt::nonCodecCapability, oh323_alloc(), oh323_destroy(), oh323_pvt::options, and restart_monitor().

{
   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_debug(1, "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_AUDIO_MASK;
   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_debug(1, "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, read]

Retrieve audio/etc from channel. Assumes pvt->lock is already held.

Definition at line 748 of file chan_h323.c.

References ast_channel_trylock, ast_channel_unlock, ast_debug, 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(), f, ast_frame::frametype, 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().

{
   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_debug(1, "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,
struct ast_rtp trtp,
int  codecs,
int  nat_active 
) [static]

Definition at line 3193 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, 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 ( const void *  data) [static]

Definition at line 302 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, DEADLOCK_AVOIDANCE, 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 = (struct oh323_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)) {
         DEADLOCK_AVOIDANCE(&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]

Only channel structure should be locked.

Definition at line 396 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 828 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 2076 of file chan_h323.c.

References AST_CONTROL_PROGRESS, AST_CONTROL_RINGING, ast_debug, ast_log(), ast_mutex_unlock(), find_call_locked(), oh323_pvt::lock, LOG_ERROR, oh323_pvt::owner, and update_state().

Referenced by build_progress(), and enc_ie_progress().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "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 2830 of file chan_h323.c.

References ASTOBJ_CONTAINER_PRUNE_MARKED, oh323_destroy_peer(), and peerl.

Referenced by reload_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, read]

Definition at line 1230 of file chan_h323.c.

References ast_load_realtime(), ast_variables_destroy(), build_alias(), ast_variable::name, ast_variable::next, SENTINEL, 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, SENTINEL);

   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, read]

Definition at line 1558 of file chan_h323.c.

References ast_inet_ntoa(), ast_load_realtime(), ast_log(), ast_variables_destroy(), build_peer(), LOG_WARNING, ast_variable::name, ast_variable::next, SENTINEL, ast_variable::value, and var.

Referenced by find_peer().

{
   struct oh323_peer *peer;
   struct ast_variable *var;
   struct ast_variable *tmp;
   const char *addr = NULL;

   /* First check on peer name */
   if (peername)
      var = ast_load_realtime("h323", "name", peername, SENTINEL);
   else if (sin) /* Then check on IP address for dynamic peers */
      var = ast_load_realtime("h323", "host", addr = ast_inet_ntoa(sin->sin_addr), SENTINEL);
   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, read]

Definition at line 1444 of file chan_h323.c.

References ast_load_realtime(), ast_log(), ast_variables_destroy(), build_user(), LOG_WARNING, ast_variable::name, ast_variable::next, SENTINEL, user, ast_variable::value, and var.

Referenced by find_user().

{
   struct ast_variable *var, *tmp;
   struct oh323_user *user;
   const char *username;

   if (userbyalias)
      var = ast_load_realtime("h323", "name", username = cd->call_source_aliases, SENTINEL);
   else {
      username = (char *)NULL;
      var = ast_load_realtime("h323", "host", cd->sourceIp, SENTINEL);
   }

   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 1831 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, ast_frame::len, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, oh323_pvt::newcontrol, oh323_pvt::newdigit, oh323_pvt::newduration, oh323_simulate_dtmf_end(), oh323_pvt::owner, ast_frame::samples, 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,
            .len = duration,
            .src = "SEND_DIGIT",
         };
         if (digit == ' ') {     /* signalUpdate message */
            f.subclass = pvt->curDTMF;
            AST_SCHED_DEL(sched, pvt->DTMFsched);
         } else {          /* Regular input or signal message */
            if (pvt->DTMFsched >= 0) {
               /* We still don't send DTMF END from previous event, send it now */
               AST_SCHED_DEL(sched, pvt->DTMFsched);
               f.subclass = pvt->curDTMF;
               f.samples = f.len = 0;
               ast_queue_frame(pvt->owner, &f);
               /* Restore values */
               f.subclass = digit;
               f.samples = duration * 8;
               f.len = duration;
            }
            if (duration) {      /* This is a signal, signalUpdate follows */
               f.frametype = AST_FRAME_DTMF_BEGIN;
               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 263 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 3129 of file chan_h323.c.

References ast_log(), h323_reload(), and LOG_NOTICE.

{
   if (!sched || !io) {
      ast_log(LOG_NOTICE, "Unload and load chan_h323.so again in order to receive configuration changes.\n");
      return 0;
   }
   return h323_reload();
}
static int reload_config ( int  is_reload) [static]

Definition at line 2836 of file chan_h323.c.

References aliasl, ast_category_browse(), ast_clear_flag, ast_config_destroy(), ast_config_load, ast_copy_string(), ast_gethostbyname(), ast_jb_read_conf(), ast_log(), ast_str2cos(), ast_str2tos(), ast_true(), ast_variable_browse(), ast_variable_retrieve(), ast_verb, ASTOBJ_CONTAINER_LINK, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_CONTAINER_UNLOCK, ASTOBJ_CONTAINER_WRLOCK, ASTOBJ_RDLOCK, ASTOBJ_UNLOCK, ASTOBJ_UNREF, bindaddr, build_alias(), build_peer(), build_user(), CONFIG_FLAG_FILEUNCHANGED, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, delete_aliases(), delete_users(), gatekeeper_disable, gatekeeper_discover, gen, GLOBAL_CAPABILITY, global_jbconf, hp, ast_variable::lineno, LOG_ERROR, LOG_NOTICE, LOG_WARNING, ast_variable::name, ast_variable::next, oh323_destroy_alias(), oh323_destroy_peer(), oh323_destroy_user(), peerl, prune_peers(), update_common_options(), userl, and ast_variable::value.

Referenced by h323_do_reload(), and load_module().

{
   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;
   struct ast_flags config_flags = { is_reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };

   cfg = ast_config_load(config, config_flags);

   /* 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;
   } else if (cfg == CONFIG_STATUS_FILEUNCHANGED) {
      ucfg = ast_config_load("users.conf", config_flags);
      if (ucfg == CONFIG_STATUS_FILEUNCHANGED) {
         return 0;
      } else if (ucfg == CONFIG_STATUS_FILEINVALID) {
         ast_log(LOG_ERROR, "Config file users.conf is in an invalid format.  Aborting.\n");
         return 0;
      }
      ast_clear_flag(&config_flags, CONFIG_FLAG_FILEUNCHANGED);
      if ((cfg = ast_config_load(config, config_flags)) == CONFIG_STATUS_FILEINVALID) {
         ast_log(LOG_ERROR, "Config file %s is in an invalid format.  Aborting.\n", config);
         ast_config_destroy(ucfg);
         return 0;
      }
   } else if (cfg == CONFIG_STATUS_FILEINVALID) {
      ast_log(LOG_ERROR, "Config file %s is in an invalid format.  Aborting.\n", config);
      return 0;
   } else {
      ast_clear_flag(&config_flags, CONFIG_FLAG_FILEUNCHANGED);
      if ((ucfg = ast_config_load("users.conf", config_flags)) == CONFIG_STATUS_FILEINVALID) {
         ast_log(LOG_ERROR, "Config file users.conf is in an invalid format.  Aborting.\n");
         ast_config_destroy(cfg);
         return 0;
      }
   }

   if (is_reload) {
      delete_users();
      delete_aliases();
      prune_peers();
   }

   /* 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 */
   global_options.autoframing = 0;
   strcpy(default_context, "default");
   h323_signalling_port = 1720;
   gatekeeper_disable = 1;
   gatekeeper_discover = 0;
   gkroute = 0;
   userbyalias = 1;
   acceptAnonymous = 1;
   tos = 0;
   cos = 0;

   /* Copy the default jb config over global_jbconf */
   memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_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);
               }
               peer = build_peer(cat, gen, ast_variable_browse(ucfg, cat), 0);
               if (peer) {
                  ASTOBJ_CONTAINER_LINK(&peerl, peer);
                  ASTOBJ_UNREF(peer, oh323_destroy_peer);
               }
            }
         }
      }
      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")) { /* Needs to be removed in next release */
         ast_log(LOG_WARNING, "The \"tos\" setting is deprecated in this version of Asterisk. Please change to \"tos_audio\".\n");
         if (ast_str2tos(v->value, &tos)) {
            ast_log(LOG_WARNING, "Invalid tos_audio value at line %d, refer to QoS documentation\n", v->lineno);        
         }
      } else if (!strcasecmp(v->name, "tos_audio")) {
         if (ast_str2tos(v->value, &tos)) {
            ast_log(LOG_WARNING, "Invalid tos_audio value at line %d, refer to QoS documentation\n", v->lineno);        
         }
      } else if (!strcasecmp(v->name, "cos")) {
         ast_log(LOG_WARNING, "The \"cos\" setting is deprecated in this version of Asterisk. Please change to \"cos_audio\".\n");
         if (ast_str2cos(v->value, &cos)) {
            ast_log(LOG_WARNING, "Invalid cos_audio value at line %d, refer to QoS documentation\n", v->lineno);        
         }
      } else if (!strcasecmp(v->name, "cos_audio")) {
         if (ast_str2cos(v->value, &cos)) {
            ast_log(LOG_WARNING, "Invalid cos_audio value at line %d, refer to QoS documentation\n", v->lineno);        
         }
      } else if (!strcasecmp(v->name, "gatekeeper")) {
         if (!strcasecmp(v->value, "DISABLE")) {
            gatekeeper_disable = 1;
         } else if (!strcasecmp(v->value, "DISCOVER")) {
            gatekeeper_disable = 0;
            gatekeeper_discover = 1;
         } else {
            gatekeeper_disable = 0;
            ast_copy_string(gatekeeper, v->value, sizeof(gatekeeper));
         }
      } else if (!strcasecmp(v->name, "secret")) {
         ast_copy_string(secret, v->value, sizeof(secret));
      } else if (!strcasecmp(v->name, "AllowGKRouted")) {
         gkroute = ast_true(v->value);
      } else if (!strcasecmp(v->name, "context")) {
         ast_copy_string(default_context, v->value, sizeof(default_context));
         ast_verb(2, "Setting default context to %s\n", default_context);
      } else if (!strcasecmp(v->name, "UserByAlias")) {
         userbyalias = ast_true(v->value);
      } else if (!strcasecmp(v->name, "AcceptAnonymous")) {
         acceptAnonymous = ast_true(v->value);
      } else if (!update_common_options(v, &global_options)) {
         /* dummy */
      }
   }
   if (!global_options.dtmfmode)
      global_options.dtmfmode = H323_DTMF_RFC2833;
   if (global_options.holdHandling == ~0)
      global_options.holdHandling = 0;
   else if (!global_options.holdHandling)
      global_options.holdHandling = H323_HOLD_H450;

   for (cat = ast_category_browse(cfg, NULL); cat; cat = ast_category_browse(cfg, cat)) {
      if (strcasecmp(cat, "general")) {
         utype = ast_variable_retrieve(cfg, cat, "type");
         if (utype) {
            is_user = is_peer = is_alias = 0;
            if (!strcasecmp(utype, "user"))
               is_user = 1;
            else if (!strcasecmp(utype, "peer"))
               is_peer = 1;
            else if (!strcasecmp(utype, "friend"))
               is_user = is_peer = 1;
            else if (!strcasecmp(utype, "h323") || !strcasecmp(utype, "alias"))
               is_alias = 1;
            else {
               ast_log(LOG_WARNING, "Unknown type '%s' for '%s' in %s\n", utype, cat, config);
               continue;
            }
            if (is_user) {
               user = build_user(cat, ast_variable_browse(cfg, cat), NULL, 0);
               if (user) {
                  ASTOBJ_CONTAINER_LINK(&userl, user);
                  ASTOBJ_UNREF(user, oh323_destroy_user);
               }
            }
            if (is_peer) {
               peer = build_peer(cat, ast_variable_browse(cfg, cat), NULL, 0);
               if (peer) {
                  ASTOBJ_CONTAINER_LINK(&peerl, peer);
                  ASTOBJ_UNREF(peer, oh323_destroy_peer);
               }
            }
            if (is_alias) {
               alias = build_alias(cat, ast_variable_browse(cfg, cat), NULL, 0);
               if (alias) {
                  ASTOBJ_CONTAINER_LINK(&aliasl, alias);
                  ASTOBJ_UNREF(alias, oh323_destroy_alias);
               }
            }
         } else {
            ast_log(LOG_WARNING, "Section '%s' lacks type\n", cat);
         }
      }
   }
   ast_config_destroy(cfg);

   /* Register our H.323 aliases if any*/
   ASTOBJ_CONTAINER_WRLOCK(&aliasl);
   ASTOBJ_CONTAINER_TRAVERSE(&aliasl, 1, do {
      ASTOBJ_RDLOCK(iterator);
      if (h323_set_alias(iterator)) {
         ast_log(LOG_ERROR, "Alias %s rejected by endpoint\n", alias->name);
         ASTOBJ_UNLOCK(iterator);
         continue;
      }
      ASTOBJ_UNLOCK(iterator);
   } while (0) );
   ASTOBJ_CONTAINER_UNLOCK(&aliasl);

   /* Don't touch GK if nothing changed because URQ will drop all existing calls */
   gk_changed = 0;
   if (gatekeeper_disable != gk_disable)
      gk_changed = is_reload;
   else if(!gatekeeper_disable && (gatekeeper_discover != gk_discover))
      gk_changed = is_reload;
   else if(!gatekeeper_disable && (strncmp(_gatekeeper, gatekeeper, sizeof(_gatekeeper)) != 0))
      gk_changed = is_reload;
   if (gk_changed) {
      if(!gk_disable)
         h323_gk_urq();
      if (!gatekeeper_disable) {
         if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) {
            ast_log(LOG_ERROR, "Gatekeeper registration failed.\n");
            gatekeeper_disable = 1;
         }
      }
   }
   return 0;
}
static void remote_hold ( unsigned  call_reference,
const char *  token,
int  is_hold 
) [static]

Definition at line 2507 of file chan_h323.c.

References ast_channel_trylock, ast_channel_unlock, AST_CONTROL_HOLD, AST_CONTROL_UNHOLD, ast_debug, ast_mutex_unlock(), ast_queue_control(), find_call_locked(), oh323_pvt::lock, oh323_pvt::newcontrol, and oh323_pvt::owner.

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "Setting %shold status for connection %s\n", (is_hold ? "" : "un"), token);

   pvt = find_call_locked(call_reference, token);
   if (!pvt)
      return;
   if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
      if (is_hold)
         ast_queue_control(pvt->owner, AST_CONTROL_HOLD);
      else
         ast_queue_control(pvt->owner, AST_CONTROL_UNHOLD);
      ast_channel_unlock(pvt->owner);
   }
   else {
      if (is_hold)
         pvt->newcontrol = AST_CONTROL_HOLD;
      else
         pvt->newcontrol = AST_CONTROL_UNHOLD;
   }
   ast_mutex_unlock(&pvt->lock);
}
static int restart_monitor ( void  ) [static]

Definition at line 2601 of file chan_h323.c.

References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_pthread_create_background, AST_PTHREADT_NULL, AST_PTHREADT_STOP, do_monitor(), LOG_ERROR, LOG_WARNING, and monlock.

Referenced by h323_reload(), load_module(), and oh323_request().

{
   /* If we're supposed to be stopped -- stay stopped */
   if (ast_mutex_lock(&monlock)) {
      ast_log(LOG_WARNING, "Unable to lock monitor\n");
      return -1;
   }
   if (monitor_thread == AST_PTHREADT_STOP) {
      ast_mutex_unlock(&monlock);
      return 0;
   }
   if (monitor_thread == pthread_self()) {
      ast_mutex_unlock(&monlock);
      ast_log(LOG_WARNING, "Cannot kill myself\n");
      return -1;
   }
   if (monitor_thread && (monitor_thread != AST_PTHREADT_NULL)) {
      /* Wake up the thread */
      pthread_kill(monitor_thread, SIGURG);
   } else {
      /* Start a new monitor */
      if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
         monitor_thread = AST_PTHREADT_NULL;
         ast_mutex_unlock(&monlock);
         ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
         return -1;
      }
   }
   ast_mutex_unlock(&monlock);
   return 0;
}
static void set_dtmf_payload ( unsigned  call_reference,
const char *  token,
int  payload,
int  is_cisco 
) [static]

Definition at line 2422 of file chan_h323.c.

References ast_debug, ast_mutex_unlock(), ast_rtp_set_rtpmap_type(), oh323_pvt::dtmf_pt, find_call_locked(), oh323_pvt::lock, and oh323_pvt::rtp.

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "Setting %s DTMF payload to %d on %s\n", (is_cisco ? "Cisco" : "RFC2833"), payload, token);

   pvt = find_call_locked(call_reference, token);
   if (!pvt) {
      return;
   }
   if (pvt->rtp) {
      ast_rtp_set_rtpmap_type(pvt->rtp, payload, "audio", (is_cisco ? "cisco-telephone-event" : "telephone-event"), 0);
   }
   pvt->dtmf_pt[is_cisco ? 1 : 0] = payload;
   ast_mutex_unlock(&pvt->lock);
   if (h323debug)
      ast_debug(1, "DTMF payload on %s set to %d\n", token, payload);
}
static void set_local_capabilities ( unsigned  call_reference,
const char *  token 
) [static]

Definition at line 2477 of file chan_h323.c.

References ast_debug, ast_getformatname(), ast_mutex_unlock(), capability, dtmfmode, find_call_locked(), ast_codec_pref::framing, oh323_pvt::jointcapability, oh323_pvt::lock, oh323_pvt::options, ast_codec_pref::order, and oh323_pvt::pref_codec.

Referenced by load_module().

{
   struct oh323_pvt *pvt;
   int capability, dtmfmode, pref_codec;
   struct ast_codec_pref prefs;

   if (h323debug)
      ast_debug(1, "Setting capabilities for connection %s\n", token);

   pvt = find_call_locked(call_reference, token);
   if (!pvt)
      return;
   capability = (pvt->jointcapability) ? pvt->jointcapability : pvt->options.capability;
   dtmfmode = pvt->options.dtmfmode;
   prefs = pvt->options.prefs;
   pref_codec = pvt->pref_codec;
   ast_mutex_unlock(&pvt->lock);
   h323_set_capabilities(token, capability, dtmfmode, &prefs, pref_codec);

   if (h323debug) {
      int i;
      for (i = 0; i < 32; i++) {
         if (!prefs.order[i])
            break;
         ast_debug(1, "local prefs[%d]=%s:%d\n", i, (prefs.order[i] ? ast_getformatname(1 << (prefs.order[i]-1)) : "<none>"), prefs.framing[i]);
      }
      ast_debug(1, "Capabilities for connection %s is set\n", token);
   }
}
static void set_peer_capabilities ( unsigned  call_reference,
const char *  token,
int  capabilities,
struct ast_codec_pref prefs 
) [static]

Definition at line 2442 of file chan_h323.c.

References ast_debug, ast_getformatname(), ast_mutex_unlock(), ast_rtp_codec_setpref(), capabilities, find_call_locked(), ast_codec_pref::framing, oh323_pvt::jointcapability, oh323_pvt::lock, oh323_pvt::options, ast_codec_pref::order, oh323_pvt::peer_prefs, oh323_pvt::peercapability, and oh323_pvt::rtp.

Referenced by load_module().

{
   struct oh323_pvt *pvt;

   if (h323debug)
      ast_debug(1, "Got remote capabilities from connection %s\n", token);

   pvt = find_call_locked(call_reference, token);
   if (!pvt)
      return;
   pvt->peercapability = capabilities;
   pvt->jointcapability = pvt->options.capability & capabilities;
   if (prefs) {
      memcpy(&pvt->peer_prefs, prefs, sizeof(pvt->peer_prefs));
      if (h323debug) {
         int i;
         for (i = 0; i < 32; ++i) {
            if (!prefs->order[i])
               break;
            ast_debug(1, "prefs[%d]=%s:%d\n", i, (prefs->order[i] ? ast_getformatname(1 << (prefs->order[i]-1)) : "<none>"), prefs->framing[i]);
         }
      }
      if (pvt->rtp) {
         if (pvt->options.autoframing) {
            ast_debug(2, "Autoframing option set, using peer's packetization settings\n");
            ast_rtp_codec_setpref(pvt->rtp, &pvt->peer_prefs);
         } else {
            ast_debug(2, "Autoframing option not set, ignoring peer's packetization settings\n");
            ast_rtp_codec_setpref(pvt->rtp, &pvt->options.prefs);
         }
      }
   }
   ast_mutex_unlock(&pvt->lock);
}
static call_options_t* setup_incoming_call ( call_details_t *  cd) [static]

Call-back function for incoming calls.

Returns 1 on success

Definition at line 2104 of file chan_h323.c.

References oh323_pvt::accountcode, oh323_pvt::amaflags, ast_copy_string(), ast_debug, ast_inet_ntoa(), ast_log(), ast_strlen_zero(), ast_verb, ASTOBJ_UNREF, oh323_pvt::cd, cleanup_call_details(), oh323_pvt::context, oh323_pvt::exten, find_alias(), find_user(), oh323_pvt::jointcapability, LOG_ERROR, LOG_NOTICE, oh323_alloc(), oh323_destroy(), oh323_destroy_user(), and oh323_pvt::options.

Referenced by load_module().

{
   struct oh323_pvt *pvt;
   struct oh323_user *user = NULL;
   struct oh323_alias *alias = NULL;

   if (h323debug)
      ast_debug(1, "Setting up incoming call for %s\n", cd->call_token);

   /* allocate the call*/
   pvt = oh323_alloc(cd->call_reference);

   if (!pvt) {
      ast_log(LOG_ERROR, "Unable to allocate private structure, this is bad.\n");
      cleanup_call_details(cd);
      return NULL;
   }

   /* Populate the call details in the private structure */
   memcpy(&pvt->cd, cd, sizeof(pvt->cd));
   memcpy(&pvt->options, &global_options, sizeof(pvt->options));
   pvt->jointcapability = pvt->options.capability;

   if (h323debug) {
      ast_verb(3, "Setting up Call\n");
      ast_verb(3, " \tCall token:  [%s]\n", pvt->cd.call_token);
      ast_verb(3, " \tCalling party name:  [%s]\n", pvt->cd.call_source_name);
      ast_verb(3, " \tCalling party number:  [%s]\n", pvt->cd.call_source_e164);
      ast_verb(3, " \tCalled party name:  [%s]\n", pvt->cd.call_dest_alias);
      ast_verb(3, " \tCalled party number:  [%s]\n", pvt->cd.call_dest_e164);
      if (pvt->cd.redirect_reason >= 0)
         ast_verb(3, " \tRedirecting party number:  [%s] (reason %d)\n", pvt->cd.redirect_number, pvt->cd.redirect_reason);
      ast_verb(3, " \tCalling party IP:  [%s]\n", pvt->cd.sourceIp);
   }

   /* Decide if we are allowing Gatekeeper routed calls*/
   if ((!strcasecmp(cd->sourceIp, gatekeeper)) && (gkroute == -1) && !gatekeeper_disable) {
      if (!ast_strlen_zero(cd->call_dest_e164)) {
         ast_copy_string(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten));
         ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
      } else {
         alias = find_alias(cd->call_dest_alias, 1);
         if (!alias) {
            ast_log(LOG_ERROR, "Call for %s rejected, alias not found\n", cd->call_dest_alias);
            oh323_destroy(pvt);
            return NULL;
         }
         ast_copy_string(pvt->exten, alias->name, sizeof(pvt->exten));
         ast_copy_string(pvt->context, alias->context, sizeof(pvt->context));
      }
   } else {
      /* Either this call is not from the Gatekeeper
         or we are not allowing gk routed calls */
      user = find_user(cd, 1);
      if (!user) {
         if (!acceptAnonymous) {
            ast_log(LOG_NOTICE, "Anonymous call from '%s@%s' rejected\n", pvt->cd.call_source_aliases, pvt->cd.sourceIp);
            oh323_destroy(pvt);
            return NULL;
         }
         if (ast_strlen_zero(default_context)) {
            ast_log(LOG_ERROR, "Call from '%s@%s' rejected due to no default context\n", pvt->cd.call_source_aliases, pvt->cd.sourceIp);
            oh323_destroy(pvt);
            return NULL;
         }
         ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
         if (!ast_strlen_zero(pvt->cd.call_dest_e164)) {
            ast_copy_string(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten));
         } else {
            ast_copy_string(pvt->exten, cd->call_dest_alias, sizeof(pvt->exten));
         }
         if (h323debug)
            ast_debug(1, "Sending %s@%s to context [%s] extension %s\n", cd->call_source_aliases, cd->sourceIp, pvt->context, pvt->exten);
      } else {
         if (user->host) {
            if (strcasecmp(cd->sourceIp, ast_inet_ntoa(user->addr.sin_addr))) {
               if (ast_strlen_zero(user->context)) {
                  if (ast_strlen_zero(default_context)) {
                     ast_log(LOG_ERROR, "Call from '%s' rejected due to non-matching IP address (%s) and no default context\n", user->name, cd->sourceIp);
                     oh323_destroy(pvt);
                     ASTOBJ_UNREF(user, oh323_destroy_user);
                     return NULL;
                  }
                  ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
               } else {
                  ast_copy_string(pvt->context, user->context, sizeof(pvt->context));
               }
               pvt->exten[0] = 'i';
               pvt->exten[1] = '\0';
               ast_log(LOG_ERROR, "Call from '%s' rejected due to non-matching IP address (%s)s\n", user->name, cd->sourceIp);
               oh323_destroy(pvt);
               ASTOBJ_UNREF(user, oh323_destroy_user);
               return NULL;   /* XXX: Hmmm... Why to setup context if we drop connection immediately??? */
            }
         }
         ast_copy_string(pvt->context, user->context, sizeof(pvt->context));
         memcpy(&pvt->options, &user->options, sizeof(pvt->options));
         pvt->jointcapability = pvt->options.capability;
         if (!ast_strlen_zero(pvt->cd.call_dest_e164)) {
            ast_copy_string(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten));
         } else {
            ast_copy_string(pvt->exten, cd->call_dest_alias, sizeof(pvt->exten));
         }
         if (!ast_strlen_zero(user->accountcode)) {
            ast_copy_string(pvt->accountcode, user->accountcode, sizeof(pvt->accountcode));
         }
         if (user->amaflags) {
            pvt->amaflags = user->amaflags;
         }
         ASTOBJ_UNREF(user, oh323_destroy_user);
      }
   }
   return &pvt->options;
}
static int setup_outgoing_call ( call_details_t *  cd) [static]

Call-back function to establish an outgoing H.323 call.

Returns 1 on success

Definition at line 2303 of file chan_h323.c.

References cleanup_call_details().

Referenced by load_module().

{
   /* Use argument here or free it immediately */
   cleanup_call_details(cd);

   return 1;
}
static void setup_rtp_connection ( unsigned  call_reference,
const char *  remoteIp,
int  remotePort,
const char *  token,
int  pt 
) [static]

Call-back function passing remote ip/port information from H.323 to asterisk.

Returns nothing

Definition at line 1940 of file chan_h323.c.

References __oh323_rtp_create(), oh323_pvt::alreadygone, ast_channel_trylock, ast_channel_unlock, AST_CONTROL_HOLD, AST_CONTROL_PROGRESS, AST_CONTROL_UNHOLD, ast_debug, AST_FORMAT_G726_AAL2, ast_log(), ast_mutex_unlock(), ast_queue_control(), ast_rtp_lookup_pt(), AST_RTP_OPT_G726_NONSTANDARD, ast_rtp_set_peer(), ast_rtp_set_rtpmap_type(), ast_rtp_stop(), ast_set_read_format(), ast_set_write_format(), rtpPayloadType::code, find_call_locked(), oh323_pvt::jointcapability, oh323_pvt::lock, LOG_ERROR, LOG_NOTICE, ast_channel::nativeformats, oh323_pvt::nativeformats, oh323_pvt::newcontrol, oh323_pvt::options, oh323_pvt::owner, ast_channel::readformat, oh323_pvt::recvonly, oh323_pvt::rtp, and ast_channel::writeformat.

Referenced by load_module().

{
   struct oh323_pvt *pvt;
   struct sockaddr_in them;
   struct rtpPayloadType rtptype;
   int nativeformats_changed;
   enum { NEED_NONE, NEED_HOLD, NEED_UNHOLD } rtp_change = NEED_NONE;

   if (h323debug)
      ast_debug(1, "Setting up RTP connection for %s\n", token);

   /* Find the call or allocate a private structure if call not found */
   pvt = find_call_locked(call_reference, token);
   if (!pvt) {
      ast_log(LOG_ERROR, "Something is wrong: rtp\n");
      return;
   }
   if (pvt->alreadygone) {
      ast_mutex_unlock(&pvt->lock);
      return;
   }

   if (!pvt->rtp)
      __oh323_rtp_create(pvt);

   if ((pt == 2) && (pvt->jointcapability & AST_FORMAT_G726_AAL2)) {
      ast_rtp_set_rtpmap_type(pvt->rtp, pt, "audio", "G726-32", AST_RTP_OPT_G726_NONSTANDARD);
   }

   them.sin_family = AF_INET;
   /* only works for IPv4 */
   them.sin_addr.s_addr = inet_addr(remoteIp);
   them.sin_port = htons(remotePort);

   if (them.sin_addr.s_addr) {
      ast_rtp_set_peer(pvt->rtp, &them);
      if (pvt->recvonly) {
         pvt->recvonly = 0;
         rtp_change = NEED_UNHOLD;
      }
   } else {
      ast_rtp_stop(pvt->rtp);
      if (!pvt->recvonly) {
         pvt->recvonly = 1;
         rtp_change = NEED_HOLD;
      }
   }

   /* Change native format to reflect information taken from OLC/OLCAck */
   nativeformats_changed = 0;
   if (pt != 128 && pvt->rtp) {  /* Payload type is invalid, so try to use previously decided */
      rtptype = ast_rtp_lookup_pt(pvt->rtp, pt);
      if (h323debug)
         ast_debug(1, "Native format is set to %d from %d by RTP payload type %d\n", rtptype.code, pvt->nativeformats, pt);
      if (pvt->nativeformats != rtptype.code) {
         pvt->nativeformats = rtptype.code;
         nativeformats_changed = 1;
      }
   } else if (h323debug)
      ast_log(LOG_NOTICE, "Payload type is unknown, formats isn't changed\n");

   /* Don't try to lock the channel if nothing changed */
   if (nativeformats_changed || pvt->options.progress_audio || (rtp_change != NEED_NONE)) {
      if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
         /* Re-build translation path only if native format(s) has been changed */
         if (pvt->owner->nativeformats != pvt->nativeformats) {
            if (h323debug)
               ast_debug(1, "Native format changed to %d from %d, read format is %d, write format is %d\n", pvt->nativeformats, pvt->owner->nativeformats, pvt->owner->readformat, pvt->owner->writeformat);
            pvt->owner->nativeformats = pvt->nativeformats;
            ast_set_read_format(pvt->owner, pvt->owner->readformat);
            ast_set_write_format(pvt->owner, pvt->owner->writeformat);
         }
         if (pvt->options.progress_audio)
            ast_queue_control(pvt->owner, AST_CONTROL_PROGRESS);
         switch (rtp_change) {
         case NEED_HOLD:
            ast_queue_control(pvt->owner, AST_CONTROL_HOLD);
            break;
         case NEED_UNHOLD:
            ast_queue_control(pvt->owner, AST_CONTROL_UNHOLD);
            break;
         default:
            break;
         }
         ast_channel_unlock(pvt->owner);
      }
      else {
         if (pvt->options.progress_audio)
            pvt->newcontrol = AST_CONTROL_PROGRESS;
         else if (rtp_change == NEED_HOLD)
            pvt->newcontrol = AST_CONTROL_HOLD;
         else if (rtp_change == NEED_UNHOLD)
            pvt->newcontrol = AST_CONTROL_UNHOLD;
         if (h323debug)
            ast_debug(1, "RTP connection preparation for %s is pending...\n", token);
      }
   }
   ast_mutex_unlock(&pvt->lock);

   if (h323debug)
      ast_debug(1, "RTP connection prepared for %s\n", token);

   return;
}
static int unload_module ( void  ) [static]

Definition at line 3329 of file chan_h323.c.

References aliasl, ast_channel_unregister(), ast_cli_unregister(), ast_cli_unregister_multiple(), ast_free, ast_log(), ast_mutex_destroy(), ast_mutex_lock(), ast_mutex_unlock(), AST_PTHREADT_NULL, AST_PTHREADT_STOP, ast_rtp_proto_unregister(), ast_softhangup(), AST_SOFTHANGUP_APPUNLOAD, ASTOBJ_CONTAINER_DESTROY, ASTOBJ_CONTAINER_DESTROYALL, iflist, iflock, io_context_destroy(), oh323_pvt::lock, LOG_WARNING, monlock, oh323_pvt::next, oh323_destroy_alias(), oh323_destroy_peer(), oh323_destroy_user(), oh323_pvt::owner, peerl, sched_context_destroy(), and userl.

{
   struct oh323_pvt *p, *pl;

   /* unregister commands */
   ast_cli_unregister_multiple(cli_h323, sizeof(cli_h323) / sizeof(struct ast_cli_entry));
   ast_cli_unregister(&cli_h323_reload);

   ast_channel_unregister(&oh323_tech);
   ast_rtp_proto_unregister(&oh323_rtp);

   if (!ast_mutex_lock(&iflock)) {
      /* hangup all interfaces if they have an owner */
      p = iflist;
      while(p) {
         if (p->owner) {
            ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
         }
         p = p->next;
      }
      iflist = NULL;
      ast_mutex_unlock(&iflock);
   } else {
      ast_log(LOG_WARNING, "Unable to lock the interface list\n");
      return -1;
   }
   if (!ast_mutex_lock(&monlock)) {
      if ((monitor_thread != AST_PTHREADT_STOP) && (monitor_thread != AST_PTHREADT_NULL)) {
         if (monitor_thread != pthread_self()) {
            pthread_cancel(monitor_thread);
         }
         pthread_kill(monitor_thread, SIGURG);
         pthread_join(monitor_thread, NULL);
      }
      monitor_thread = AST_PTHREADT_STOP;
      ast_mutex_unlock(&monlock);
   } else {
      ast_log(LOG_WARNING, "Unable to lock the monitor\n");
      return -1;
   }
   if (!ast_mutex_lock(&iflock)) {
      /* destroy all the interfaces and free their memory */
      p = iflist;
      while(p) {
         pl = p;
         p = p->next;
         /* free associated memory */
         ast_mutex_destroy(&pl->lock);
         ast_free(pl);
      }
      iflist = NULL;
      ast_mutex_unlock(&iflock);
   } else {
      ast_log(LOG_WARNING, "Unable to lock the interface list\n");
      return -1;
   }
   if (!gatekeeper_disable)
      h323_gk_urq();
   h323_end_process();
   if (io)
      io_context_destroy(io);
   if (sched)
      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 0;
}
static int update_common_options ( struct ast_variable v,
struct call_options *  options 
) [static]

Definition at line 1255 of file chan_h323.c.

References ast_callerid_split(), ast_copy_string(), ast_log(), ast_parse_allow_disallow(), ast_strdupa, ast_true(), ast_variable::lineno, LOG_NOTICE, LOG_WARNING, ast_variable::name, val, and ast_variable::value.

Referenced by build_peer(), build_user(), and reload_config().

{
   int tmp = 0;
   char *val, *opt;

   if (!strcasecmp(v->name, "allow")) {
      ast_parse_allow_disallow(&options->prefs, &options->capability, v->value, 1);
   } else if (!strcasecmp(v->name, "autoframing")) {
      options->autoframing = ast_true(v->value);
   } else if (!strcasecmp(v->name, "disallow")) {
      ast_parse_allow_disallow(&options->prefs, &options->capability, v->value, 0);
   } else if (!strcasecmp(v->name, "dtmfmode")) {
      val = ast_strdupa(v->value);
      if ((opt = strchr(val, ':')) != (char *)NULL) {
         *opt++ = '\0';
         tmp = atoi(opt);
      }
      if (!strcasecmp(v->value, "inband")) {
         options->dtmfmode |= H323_DTMF_INBAND;
      } else if (!strcasecmp(val, "rfc2833")) {
         options->dtmfmode |= H323_DTMF_RFC2833;
         if (!opt) {
            options->dtmfcodec[0] = H323_DTMF_RFC2833_PT;
         } else if ((tmp >= 96) && (tmp < 128)) {
            options->dtmfcodec[0] = tmp;
         } else {
            options->dtmfcodec[0] = H323_DTMF_RFC2833_PT;
            ast_log(LOG_WARNING, "Unknown rfc2833 payload %s specified at line %d, using default %d\n", opt, v->lineno, options->dtmfcodec[0]);
         }
      } else if (!strcasecmp(val, "cisco")) {
         options->dtmfmode |= H323_DTMF_CISCO;
         if (!opt) {
            options->dtmfcodec[1] = H323_DTMF_CISCO_PT;
         } else if ((tmp >= 96) && (tmp < 128)) {
            options->dtmfcodec[1] = tmp;
         } else {
            options->dtmfcodec[1] = H323_DTMF_CISCO_PT;
            ast_log(LOG_WARNING, "Unknown Cisco DTMF payload %s specified at line %d, using default %d\n", opt, v->lineno, options->dtmfcodec[1]);
         }
      } else if (!strcasecmp(v->value, "h245-signal")) {
         options->dtmfmode |= H323_DTMF_SIGNAL;
      } else {
         ast_log(LOG_WARNING, "Unknown dtmf mode '%s' at line %d\n", v->value, v->lineno);
      }
   } else if (!strcasecmp(v->name, "dtmfcodec")) {
      ast_log(LOG_NOTICE, "Option %s at line %d is deprecated. Use dtmfmode=rfc2833[:<payload>] instead.\n", v->name, v->lineno);
      tmp = atoi(v->value);
      if (tmp < 96)
         ast_log(LOG_WARNING, "Invalid %s value %s at line %d\n", v->name, v->value, v->lineno);
      else
         options->dtmfcodec[0] = tmp;
   } else if (!strcasecmp(v->name, "bridge")) {
      options->bridge = ast_true(v->value);
   } else if (!strcasecmp(v->name, "nat")) {
      options->nat = ast_true(v->value);
   } else if (!strcasecmp(v->name, "fastStart")) {
      options->fastStart = ast_true(v->value);
   } else if (!strcasecmp(v->name, "h245Tunneling")) {
      options->h245Tunneling = ast_true(v->value);
   } else if (!strcasecmp(v->name, "silenceSuppression")) {
      options->silenceSuppression = ast_true(v->value);
   } else if (!strcasecmp(v->name, "progress_setup")) {
      tmp = atoi(v->value);
      if ((tmp != 0) && (tmp != 1) && (tmp != 3) && (tmp != 8)) {
         ast_log(LOG_WARNING, "Invalid value %s for %s at line %d, assuming 0\n", v->value, v->name, v->lineno);
         tmp = 0;
      }
      options->progress_setup = tmp;
   } else if (!strcasecmp(v->name, "progress_alert")) {
      tmp = atoi(v->value);
      if ((tmp != 0) && (tmp != 1) && (tmp != 8)) {
         ast_log(LOG_WARNING, "Invalid value %s for %s at line %d, assuming 0\n", v->value, v->name, v->lineno);
         tmp = 0;
      }
      options->progress_alert = tmp;
   } else if (!strcasecmp(v->name, "progress_audio")) {
      options->progress_audio = ast_true(v->value);
   } else if (!strcasecmp(v->name, "callerid")) {
      ast_callerid_split(v->value, options->cid_name, sizeof(options->cid_name), options->cid_num, sizeof(options->cid_num));
   } else if (!strcasecmp(v->name, "fullname")) {
      ast_copy_string(options->cid_name, v->value, sizeof(options->cid_name));
   } else if (!strcasecmp(v->name, "cid_number")) {
      ast_copy_string(options->cid_num, v->value, sizeof(options->cid_num));
   } else if (!strcasecmp(v->name, "tunneling")) {
      if (!strcasecmp(v->value, "none"))
         options->tunnelOptions = 0;
      else if (!strcasecmp(v->value, "cisco"))
         options->tunnelOptions |= H323_TUNNEL_CISCO;
      else if (!strcasecmp(v->value, "qsig"))
         options->tunnelOptions |= H323_TUNNEL_QSIG;
      else
         ast_log(LOG_WARNING, "Invalid value %s for %s at line %d\n", v->value, v->name, v->lineno);
   } else if (!strcasecmp(v->name, "hold")) {
      if (!strcasecmp(v->value, "none"))
         options->holdHandling = ~0;
      else if (!strcasecmp(v->value, "notify"))
         options->holdHandling |= H323_HOLD_NOTIFY;
      else if (!strcasecmp(v->value, "q931only"))
         options->holdHandling |= H323_HOLD_NOTIFY | H323_HOLD_Q931ONLY;
      else if (!strcasecmp(v->value, "h450"))
         options->holdHandling |= H323_HOLD_H450;
      else
         ast_log(LOG_WARNING, "Invalid value %s for %s at line %d\n", v->value, v->name, v->lineno);
   } else
      return 1;

   return 0;
}
static int update_state ( struct oh323_pvt pvt,
int  state,
int  signal 
) [static]

Definition at line 1174 of file chan_h323.c.

References ast_channel_trylock, ast_channel_unlock, ast_queue_control(), ast_setstate(), oh323_pvt::newcontrol, oh323_pvt::newstate, and oh323_pvt::owner.

Referenced by chan_ringing(), connection_made(), and progress().

{
   if (!pvt)
      return 0;
   if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
      if (state >= 0)
         ast_setstate(pvt->owner, state);
      if (signal >= 0)
         ast_queue_control(pvt->owner, signal);
      ast_channel_unlock(pvt->owner);
      return 1;
   }
   else {
      if (state >= 0)
         pvt->newstate = state;
      if (signal >= 0)
         pvt->newcontrol = signal;
      return 0;
   }
}

Variable Documentation

struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "The NuFone Network's OpenH323 Channel Driver" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .reload = reload, } [static]

Definition at line 3407 of file chan_h323.c.

int acceptAnonymous = 1 [static]

Definition at line 142 of file chan_h323.c.

Definition at line 3407 of file chan_h323.c.

struct sockaddr_in bindaddr [static]

Definition at line 130 of file chan_h323.c.

Referenced by __oh323_rtp_create(), load_module(), and reload_config().

ast_mutex_t caplock = AST_MUTEX_INIT_VALUE [static]

Protect the H.323 capabilities list, to avoid more than one channel to set the capabilities simultaneaously in the h323 stack.

Definition at line 218 of file chan_h323.c.

Referenced by oh323_request().

struct ast_cli_entry cli_h323[] [static]

Definition at line 2777 of file chan_h323.c.

struct ast_cli_entry cli_h323_reload [static]
Initial value:
   AST_CLI_DEFINE(handle_cli_h323_reload, "Reload H.323 configuration")

Definition at line 3138 of file chan_h323.c.

const char config[] = "h323.conf" [static]

Definition at line 128 of file chan_h323.c.

unsigned int cos = 0 [static]
char default_context[AST_MAX_CONTEXT] = "default" [static]

Definition at line 129 of file chan_h323.c.

struct ast_jb_conf default_jbconf [static]

Global jitterbuffer configuration - by default, jb is disabled.

Definition at line 116 of file chan_h323.c.

char gatekeeper[100] [static]

Definition at line 136 of file chan_h323.c.

int gatekeeper_disable = 1 [static]

Definition at line 137 of file chan_h323.c.

Referenced by reload_config().

int gatekeeper_discover = 0 [static]

Definition at line 138 of file chan_h323.c.

Referenced by reload_config().

int gkroute = 0 [static]

Definition at line 139 of file chan_h323.c.

struct ast_jb_conf global_jbconf [static]

Definition at line 124 of file chan_h323.c.

Referenced by __oh323_rtp_create(), __oh323_update_info(), and reload_config().

call_options_t global_options [static]

Definition at line 148 of file chan_h323.c.

ast_mutex_t h323_reload_lock = AST_MUTEX_INIT_VALUE [static]

Protect the reload process.

Definition at line 221 of file chan_h323.c.

Referenced by do_monitor(), and h323_reload().

int h323_reloading = 0 [static]

Definition at line 222 of file chan_h323.c.

Referenced by do_monitor().

int h323_signalling_port = 1720 [static]

H.323 configuration values

Definition at line 135 of file chan_h323.c.

Referenced by create_addr().

int h323debug

global debug flag

Definition at line 113 of file chan_h323.c.

ast_mutex_t iflock = AST_MUTEX_INIT_VALUE [static]

Protect the interface list (oh323_pvt)

Definition at line 211 of file chan_h323.c.

Referenced by do_monitor(), find_call_locked(), oh323_alloc(), oh323_destroy(), and unload_module().

struct io_context* io [static]

Definition at line 209 of file chan_h323.c.

pthread_t monitor_thread = AST_PTHREADT_NULL [static]

This is the thread for the monitor which checks for input on the channels which are not currently in use.

Definition at line 226 of file chan_h323.c.

ast_mutex_t monlock = AST_MUTEX_INIT_VALUE [static]

Protect the H.323 monitoring thread, so only one process can kill or start it, and not when it's doing something critical.

Definition at line 215 of file chan_h323.c.

Referenced by do_monitor(), restart_monitor(), and unload_module().

struct ast_rtp_protocol oh323_rtp [static]

Definition at line 3219 of file chan_h323.c.

struct ast_channel_tech oh323_tech [static]

Definition at line 245 of file chan_h323.c.

Referenced by __oh323_new().

answer_call_cb on_answer_call

Definition at line 105 of file chan_h323.c.

chan_ringing_cb on_chan_ringing

Definition at line 102 of file chan_h323.c.

clear_con_cb on_connection_cleared

Definition at line 104 of file chan_h323.c.

con_established_cb on_connection_established

Definition at line 103 of file chan_h323.c.

Definition at line 98 of file chan_h323.c.

hangup_cb on_hangup

Definition at line 108 of file chan_h323.c.

onhold_cb on_hold

Definition at line 111 of file chan_h323.c.

setup_incoming_cb on_incoming_call

Definition at line 100 of file chan_h323.c.

setup_outbound_cb on_outgoing_call

Definition at line 101 of file chan_h323.c.

progress_cb on_progress

Definition at line 106 of file chan_h323.c.

receive_digit_cb on_receive_digit

Definition at line 97 of file chan_h323.c.

Definition at line 107 of file chan_h323.c.

setcapabilities_cb on_setcapabilities

Definition at line 109 of file chan_h323.c.

setpeercapabilities_cb on_setpeercapabilities

Definition at line 110 of file chan_h323.c.

start_rtp_cb on_start_rtp_channel

Definition at line 99 of file chan_h323.c.

struct sched_context* sched [static]

Definition at line 208 of file chan_h323.c.

const char tdesc[] = "The NuFone Network's Open H.323 Channel Driver" [static]

Variables required by Asterisk

Definition at line 127 of file chan_h323.c.

unsigned int tos = 0 [static]

Definition at line 143 of file chan_h323.c.

unsigned int unique = 0 [static]

Definition at line 146 of file chan_h323.c.

int userbyalias = 1 [static]

Definition at line 141 of file chan_h323.c.