Sat Apr 12 07:12:35 2008

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 <unistd.h>
#include <stdlib.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include "asterisk/lock.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/musiconhold.h"
#include "asterisk/pbx.h"
#include "asterisk/options.h"
#include "asterisk/utils.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/rtp.h"
#include "asterisk/acl.h"
#include "asterisk/callerid.h"
#include "asterisk/cli.h"
#include "asterisk/dsp.h"
#include "asterisk/causes.h"
#include "asterisk/stringfields.h"
#include "asterisk/abstract_jb.h"
#include "asterisk/astobj.h"
#include "h323/chan_h323.h"

Include dependency graph for chan_h323.c:

Go to the source code of this file.

Data Structures

struct  ast_alias_list
struct  ast_peer_list
 The peer list: Peers and Friends. More...
struct  ast_user_list
 The user list: Users and friends. More...
struct  oh323_pvt
struct  rtpPayloadType
 Structure representing a RTP session. More...

Defines

#define DEPRECATED(_v, _new_opt)   ast_log(LOG_WARNING, "Option %s found at line %d has beed deprecated. Use %s instead.\n", (_v)->name, (_v)->lineno, (_new_opt))
#define GLOBAL_CAPABILITY   (AST_FORMAT_G723_1 | AST_FORMAT_GSM | AST_FORMAT_ULAW | AST_FORMAT_ALAW | AST_FORMAT_G729A | AST_FORMAT_H261)

Functions

static void __oh323_destroy (struct oh323_pvt *pvt)
static struct ast_channel__oh323_new (struct oh323_pvt *pvt, int state, const char *host)
static int __oh323_rtp_create (struct oh323_pvt *pvt)
static void __oh323_update_info (struct ast_channel *c, struct oh323_pvt *pvt)
static int answer_call (unsigned call_reference, const char *token)
 AST_MODULE_INFO (ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT,"The NuFone Network's OpenH323 Channel Driver",.load=load_module,.unload=unload_module,.reload=reload,)
 AST_MUTEX_DEFINE_STATIC (h323_reload_lock)
 AST_MUTEX_DEFINE_STATIC (caplock)
 AST_MUTEX_DEFINE_STATIC (monlock)
 AST_MUTEX_DEFINE_STATIC (iflock)
static struct oh323_alias * build_alias (const char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static struct oh323_peer * build_peer (const char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static struct oh323_user * build_user (char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)
static void chan_ringing (unsigned call_reference, const char *token)
static void cleanup_call_details (call_details_t *cd)
static void cleanup_connection (unsigned call_reference, const char *call_token)
static void connection_made (unsigned call_reference, const char *token)
static char * convertcap (int cap)
static int create_addr (struct oh323_pvt *pvt, char *opeer)
static void delete_aliases (void)
static void delete_users (void)
static void * do_monitor (void *data)
static struct rtp_info * external_rtp_create (unsigned call_reference, const char *token)
static struct oh323_alias * find_alias (const char *source_aliases, int realtime)
static struct oh323_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_debug (int fd, int argc, char *argv[])
static int h323_do_reload (void)
static int h323_do_trace (int fd, int argc, char *argv[])
static int h323_ep_hangup (int fd, int argc, char *argv[])
static int h323_gk_cycle (int fd, int argc, char *argv[])
static int h323_no_debug (int fd, int argc, char *argv[])
static int h323_no_trace (int fd, int argc, char *argv[])
static int h323_reload (int fd, int argc, char *argv[])
static int h323_tokens_show (int fd, int argc, char *argv[])
static void hangup_connection (unsigned int call_reference, const char *token, int cause)
static enum ast_module_load_result load_module (void)
static int oh323_addrcmp (struct sockaddr_in addr, struct sockaddr_in *sin)
static int oh323_addrcmp_str (struct in_addr inaddr, char *addr)
static struct oh323_pvtoh323_alloc (int callid)
static int oh323_answer (struct ast_channel *c)
static int oh323_call (struct ast_channel *c, char *dest, int timeout)
static void oh323_destroy (struct oh323_pvt *pvt)
static void oh323_destroy_alias (struct oh323_alias *alias)
static void oh323_destroy_peer (struct oh323_peer *peer)
static void oh323_destroy_user (struct oh323_user *user)
static int oh323_digit_begin (struct ast_channel *c, char digit)
static int oh323_digit_end (struct ast_channel *c, char digit, unsigned int duration)
static int oh323_fixup (struct ast_channel *oldchan, struct ast_channel *newchan)
static enum ast_rtp_get_result oh323_get_rtp_peer (struct ast_channel *chan, struct ast_rtp **rtp)
static enum ast_rtp_get_result oh323_get_vrtp_peer (struct ast_channel *chan, struct ast_rtp **rtp)
static int oh323_hangup (struct ast_channel *c)
static int oh323_indicate (struct ast_channel *c, int condition, const void *data, size_t datalen)
static struct ast_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)
static int oh323_set_rtp_peer (struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active)
static int oh323_simulate_dtmf_end (const void *data)
static void oh323_update_info (struct ast_channel *c)
static int oh323_write (struct ast_channel *c, struct ast_frame *frame)
static int progress (unsigned call_reference, const char *token, int inband)
static void prune_peers (void)
static struct oh323_alias * realtime_alias (const char *alias)
static struct oh323_peer * realtime_peer (const char *peername, struct sockaddr_in *sin)
static struct oh323_user * realtime_user (const call_details_t *cd)
static int receive_digit (unsigned call_reference, char digit, const char *token, int duration)
static const char * redirectingreason2str (int redirectingreason)
static int reload (void)
static int reload_config (int is_reload)
static int restart_monitor (void)
static void set_dtmf_payload (unsigned call_reference, const char *token, int payload)
static void set_local_capabilities (unsigned call_reference, const char *token)
static void set_peer_capabilities (unsigned call_reference, const char *token, int capabilities, struct ast_codec_pref *prefs)
static call_options_t * setup_incoming_call (call_details_t *cd)
static int setup_outgoing_call (call_details_t *cd)
static void setup_rtp_connection (unsigned call_reference, const char *remoteIp, int remotePort, const char *token, int pt)
static int unload_module (void)
static int update_common_options (struct ast_variable *v, struct call_options *options)
static int update_state (struct oh323_pvt *pvt, int state, int signal)

Variables

static int acceptAnonymous = 1
static struct ast_alias_list aliasl
static struct sockaddr_in bindaddr
static struct ast_cli_entry cli_h323 []
static struct ast_cli_entry cli_h323_debug_deprecated
static struct ast_cli_entry cli_h323_gk_cycle_deprecated
static struct ast_cli_entry cli_h323_no_debug_deprecated
static struct ast_cli_entry cli_h323_no_trace_deprecated
static struct ast_cli_entry cli_h323_reload
static struct ast_cli_entry cli_h323_trace_deprecated
static const char config [] = "h323.conf"
static char debug_usage []
static char default_context [AST_MAX_CONTEXT] = "default"
static struct ast_jb_conf default_jbconf
static char gatekeeper [100]
static int gatekeeper_disable = 1
static int gatekeeper_discover = 0
static int gkroute = 0
static struct ast_jb_conf global_jbconf
static call_options_t global_options
static char h323_reload_usage []
static int h323_reloading = 0
static int h323_signalling_port = 1720
int h323debug
struct oh323_pvtiflist
static struct io_contextio
static pthread_t monitor_thread = AST_PTHREADT_NULL
static char no_debug_usage []
static char no_trace_usage []
static struct ast_rtp_protocol oh323_rtp
static 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
setup_incoming_cb on_incoming_call
setup_outbound_cb on_outgoing_call
progress_cb on_progress
receive_digit_cb on_receive_digit
rfc2833_cb on_set_rfc2833_payload
setcapabilities_cb on_setcapabilities
setpeercapabilities_cb on_setpeercapabilities
start_rtp_cb on_start_rtp_channel
static struct ast_peer_list peerl
static struct sched_contextsched
static char secret [50]
static char show_cycle_usage []
static char show_hangup_usage []
static char show_tokens_usage []
static const char tdesc [] = "The NuFone Network's Open H.323 Channel Driver"
static int tos = 0
static char trace_usage []
static unsigned int unique = 0
static int userbyalias = 1
static struct ast_user_list userl


Detailed Description

This file is part of the chan_h323 driver for Asterisk.

Author:
Jeremy McNamara
See also
  • Config_h323

Definition in file chan_h323.c.


Define Documentation

#define DEPRECATED ( _v,
_new_opt   )     ast_log(LOG_WARNING, "Option %s found at line %d has beed deprecated. Use %s instead.\n", (_v)->name, (_v)->lineno, (_new_opt))

Definition at line 1251 of file chan_h323.c.

Referenced by update_common_options().

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

Definition at line 141 of file chan_h323.c.

Referenced by reload_config().


Function Documentation

static void __oh323_destroy ( struct oh323_pvt pvt  )  [static]

Definition at line 452 of file chan_h323.c.

References ast_channel_lock, ast_channel_unlock, ast_dsp_free(), ast_log(), ast_mutex_destroy(), ast_mutex_unlock(), ast_rtp_destroy(), ast_sched_del(), oh323_pvt::cd, cleanup_call_details(), oh323_pvt::DTMFsched, free, iflist, oh323_pvt::lock, LOG_DEBUG, LOG_WARNING, oh323_pvt::next, oh323_pvt::owner, oh323_pvt::rtp, ast_channel::tech_pvt, and oh323_pvt::vad.

Referenced by do_monitor(), and oh323_destroy().

00453 {
00454    struct oh323_pvt *cur, *prev = NULL;
00455 
00456    if (pvt->DTMFsched >= 0) {
00457       ast_sched_del(sched, pvt->DTMFsched);
00458       pvt->DTMFsched = -1;
00459    }
00460 
00461    if (pvt->rtp) {
00462       ast_rtp_destroy(pvt->rtp);
00463    }
00464 
00465    /* Free dsp used for in-band DTMF detection */
00466    if (pvt->vad) {
00467       ast_dsp_free(pvt->vad);
00468    }
00469    cleanup_call_details(&pvt->cd);
00470 
00471    /* Unlink us from the owner if we have one */
00472    if (pvt->owner) {
00473       ast_channel_lock(pvt->owner);
00474       if (h323debug)
00475          ast_log(LOG_DEBUG, "Detaching from %s\n", pvt->owner->name);
00476       pvt->owner->tech_pvt = NULL;
00477       ast_channel_unlock(pvt->owner);
00478    }
00479    cur = iflist;
00480    while(cur) {
00481       if (cur == pvt) {
00482          if (prev)
00483             prev->next = cur->next;
00484          else
00485             iflist = cur->next;
00486          break;
00487       }
00488       prev = cur;
00489       cur = cur->next;
00490    }
00491    if (!cur) {
00492       ast_log(LOG_WARNING, "%p is not in list?!?! \n", cur);
00493    } else {
00494       ast_mutex_unlock(&pvt->lock);
00495       ast_mutex_destroy(&pvt->lock);
00496       free(pvt);
00497    }
00498 }

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

Definition at line 1000 of file chan_h323.c.

References accountcode, oh323_pvt::accountcode, ast_channel::amaflags, oh323_pvt::amaflags, ast_best_codec(), ast_channel_alloc(), ast_codec_choose(), ast_dsp_new(), ast_dsp_set_features(), ast_hangup(), ast_log(), ast_module_ref(), ast_mutex_lock(), ast_mutex_unlock(), ast_pbx_start(), ast_rtcp_fd(), ast_rtp_fd(), AST_STATE_DOWN, AST_STATE_RING, ast_strdup, ast_string_field_set, ast_strlen_zero(), ast_udptl_fd(), oh323_pvt::cd, ast_channel::cid, ast_callerid::cid_ani, ast_callerid::cid_dnid, cid_name, cid_num, ast_callerid::cid_pres, ast_callerid::cid_rdnis, ast_callerid::cid_ton, ast_channel::context, oh323_pvt::context, DSP_FEATURE_DTMF_DETECT, ast_channel::exten, oh323_pvt::exten, ast_channel::fds, fmt, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_WARNING, oh323_pvt::nativeformats, ast_channel::nativeformats, oh323_pvt::options, oh323_pvt::owner, pbx_builtin_setvar_helper(), ast_channel::priority, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, redirectingreason2str(), ast_channel::rings, oh323_pvt::rtp, strdup, ast_channel::tech, ast_channel::tech_pvt, ast_channel::transfercapability, oh323_pvt::vad, and ast_channel::writeformat.

Referenced by answer_call(), and oh323_request().

01001 {
01002    struct ast_channel *ch;
01003    char *cid_num, *cid_name;
01004    int fmt;
01005 
01006    if (!ast_strlen_zero(pvt->options.cid_num))
01007       cid_num = pvt->options.cid_num;
01008    else
01009       cid_num = pvt->cd.call_source_e164;
01010 
01011    if (!ast_strlen_zero(pvt->options.cid_name))
01012       cid_name = pvt->options.cid_name;
01013    else
01014       cid_name = pvt->cd.call_source_name;
01015    
01016    /* Don't hold a oh323_pvt lock while we allocate a chanel */
01017    ast_mutex_unlock(&pvt->lock);
01018    ch = ast_channel_alloc(1, state, cid_num, cid_name, pvt->accountcode, pvt->exten, pvt->context, pvt->amaflags, "H323/%s", host);
01019    /* Update usage counter */
01020    ast_module_ref(ast_module_info->self);
01021    ast_mutex_lock(&pvt->lock);
01022    if (ch) {
01023       ch->tech = &oh323_tech;
01024       if (!(fmt = pvt->jointcapability) && !(fmt = pvt->options.capability))
01025          fmt = global_options.capability;
01026       ch->nativeformats = ast_codec_choose(&pvt->options.prefs, fmt, 1)/* | (pvt->jointcapability & AST_FORMAT_VIDEO_MASK)*/;
01027       pvt->nativeformats = ch->nativeformats;
01028       fmt = ast_best_codec(ch->nativeformats);
01029       ch->writeformat = fmt;
01030       ch->rawwriteformat = fmt;
01031       ch->readformat = fmt;
01032       ch->rawreadformat = fmt;
01033 #if 0
01034       ch->fds[0] = ast_rtp_fd(pvt->rtp);
01035       ch->fds[1] = ast_rtcp_fd(pvt->rtp);
01036 #endif
01037 #ifdef VIDEO_SUPPORT
01038       if (pvt->vrtp) {
01039          ch->fds[2] = ast_rtp_fd(pvt->vrtp);
01040          ch->fds[3] = ast_rtcp_fd(pvt->vrtp);
01041       }
01042 #endif
01043 #ifdef T38_SUPPORT
01044       if (pvt->udptl) {
01045          ch->fds[4] = ast_udptl_fd(pvt->udptl);
01046       }
01047 #endif
01048       if (state == AST_STATE_RING) {
01049          ch->rings = 1;
01050       }
01051       /* Allocate dsp for in-band DTMF support */
01052       if (pvt->options.dtmfmode & H323_DTMF_INBAND) {
01053          pvt->vad = ast_dsp_new();
01054          ast_dsp_set_features(pvt->vad, DSP_FEATURE_DTMF_DETECT);
01055       }
01056       /* Register channel functions. */
01057       ch->tech_pvt = pvt;
01058       /* Set the owner of this channel */
01059       pvt->owner = ch;
01060 
01061       ast_copy_string(ch->context, pvt->context, sizeof(ch->context));
01062       ast_copy_string(ch->exten, pvt->exten, sizeof(ch->exten));
01063       ch->priority = 1;
01064       if (!ast_strlen_zero(pvt->accountcode)) {
01065          ast_string_field_set(ch, accountcode, pvt->accountcode);
01066       }
01067       if (pvt->amaflags) {
01068          ch->amaflags = pvt->amaflags;
01069       }
01070 
01071       /* Don't use ast_set_callerid() here because it will
01072        * generate a needless NewCallerID event */
01073       ch->cid.cid_ani = ast_strdup(cid_num);
01074 
01075       if (pvt->cd.redirect_reason >= 0) {
01076          ch->cid.cid_rdnis = ast_strdup(pvt->cd.redirect_number);
01077          pbx_builtin_setvar_helper(ch, "PRIREDIRECTREASON", redirectingreason2str(pvt->cd.redirect_reason));
01078       }
01079       ch->cid.cid_pres = pvt->cd.presentation;
01080       ch->cid.cid_ton = pvt->cd.type_of_number;
01081 
01082       if (!ast_strlen_zero(pvt->exten) && strcmp(pvt->exten, "s")) {
01083          ch->cid.cid_dnid = strdup(pvt->exten);
01084       }
01085       if (pvt->cd.transfer_capability >= 0)
01086          ch->transfercapability = pvt->cd.transfer_capability;
01087       if (state != AST_STATE_DOWN) {
01088          if (ast_pbx_start(ch)) {
01089             ast_log(LOG_WARNING, "Unable to start PBX on %s\n", ch->name);
01090             ast_hangup(ch);
01091             ch = NULL;
01092          }
01093       }
01094    } else {
01095       ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
01096    }
01097    return ch;
01098 }

static int __oh323_rtp_create ( struct oh323_pvt pvt  )  [static]

Definition at line 954 of file chan_h323.c.

References ast_channel_trylock, ast_channel_unlock, ast_find_ourip(), ast_jb_configure(), ast_log(), ast_mutex_unlock(), ast_null_frame, ast_queue_frame(), ast_rtcp_fd(), ast_rtp_codec_setpref(), ast_rtp_fd(), ast_rtp_new_with_bindaddr(), ast_rtp_set_rtpmap_type(), ast_rtp_setnat(), ast_rtp_settos(), bindaddr, oh323_pvt::dtmf_pt, errno, ast_channel::fds, global_jbconf, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, LOG_WARNING, oh323_pvt::options, oh323_pvt::owner, oh323_pvt::peer_prefs, oh323_pvt::peercapability, oh323_pvt::rtp, and oh323_pvt::update_rtp_info.

Referenced by external_rtp_create(), and setup_rtp_connection().

00955 {
00956    struct in_addr our_addr;
00957 
00958    if (pvt->rtp)
00959       return 0;
00960 
00961    if (ast_find_ourip(&our_addr, bindaddr)) {
00962       ast_mutex_unlock(&pvt->lock);
00963       ast_log(LOG_ERROR, "Unable to locate local IP address for RTP stream\n");
00964       return -1;
00965    }
00966    pvt->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, our_addr);
00967    if (!pvt->rtp) {
00968       ast_mutex_unlock(&pvt->lock);
00969       ast_log(LOG_WARNING, "Unable to create RTP session: %s\n", strerror(errno));
00970       return -1;
00971    }
00972    if (h323debug)
00973       ast_log(LOG_DEBUG, "Created RTP channel\n");
00974 
00975    ast_rtp_settos(pvt->rtp, tos);
00976 
00977    if (h323debug)
00978       ast_log(LOG_DEBUG, "Setting NAT on RTP to %d\n", pvt->options.nat);
00979    ast_rtp_setnat(pvt->rtp, pvt->options.nat);
00980 
00981    if (pvt->dtmf_pt > 0)
00982       ast_rtp_set_rtpmap_type(pvt->rtp, pvt->dtmf_pt, "audio", "telephone-event", 0);
00983 
00984    if (pvt->peercapability)
00985       ast_rtp_codec_setpref(pvt->rtp, &pvt->peer_prefs);
00986 
00987    if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
00988       ast_jb_configure(pvt->owner, &global_jbconf);
00989       pvt->owner->fds[0] = ast_rtp_fd(pvt->rtp);
00990       pvt->owner->fds[1] = ast_rtcp_fd(pvt->rtp);
00991       ast_queue_frame(pvt->owner, &ast_null_frame);   /* Tell Asterisk to apply changes */
00992       ast_channel_unlock(pvt->owner);
00993    } else
00994       pvt->update_rtp_info = 1;
00995 
00996    return 0;
00997 }

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

Definition at line 339 of file chan_h323.c.

References ast_channel::_softhangup, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_jb_configure(), ast_log(), ast_null_frame, ast_queue_control(), ast_queue_frame(), ast_queue_hangup(), ast_rtcp_fd(), ast_rtp_fd(), ast_sched_add(), ast_sched_del(), ast_set_read_format(), ast_set_write_format(), ast_setstate(), AST_SOFTHANGUP_DEV, oh323_pvt::curDTMF, oh323_pvt::DTMFsched, ast_channel::fds, ast_frame::frametype, global_jbconf, oh323_pvt::hangupcause, ast_channel::hangupcause, LOG_DEBUG, LOG_DTMF, oh323_pvt::nativeformats, ast_channel::nativeformats, oh323_pvt::needhangup, oh323_pvt::newcontrol, oh323_pvt::newdigit, oh323_pvt::newduration, oh323_pvt::newstate, oh323_simulate_dtmf_end(), oh323_pvt::owner, ast_channel::readformat, oh323_pvt::rtp, ast_frame::subclass, oh323_pvt::update_rtp_info, and ast_channel::writeformat.

Referenced by oh323_read(), oh323_update_info(), and oh323_write().

00340 {
00341    if (c->nativeformats != pvt->nativeformats) {
00342       if (h323debug)
00343          ast_log(LOG_DEBUG, "Preparing %s for new native format\n", c->name);
00344       c->nativeformats = pvt->nativeformats;
00345       ast_set_read_format(c, c->readformat);
00346       ast_set_write_format(c, c->writeformat);
00347    }
00348    if (pvt->needhangup) {
00349       if (h323debug)
00350          ast_log(LOG_DEBUG, "Process pending hangup for %s\n", c->name);
00351       c->_softhangup |= AST_SOFTHANGUP_DEV;
00352       c->hangupcause = pvt->hangupcause;
00353       ast_queue_hangup(c);
00354       pvt->needhangup = 0;
00355       pvt->newstate = pvt->newcontrol = pvt->newdigit = pvt->DTMFsched = -1;
00356    }
00357    if (pvt->newstate >= 0) {
00358       ast_setstate(c, pvt->newstate);
00359       pvt->newstate = -1;
00360    }
00361    if (pvt->newcontrol >= 0) {
00362       ast_queue_control(c, pvt->newcontrol);
00363       pvt->newcontrol = -1;
00364    }
00365    if (pvt->newdigit >= 0) {
00366       struct ast_frame f = {
00367          .frametype = AST_FRAME_DTMF_END,
00368          .subclass = pvt->newdigit,
00369          .samples = pvt->newduration * 8,
00370          .len = pvt->newduration,
00371          .src = "UPDATE_INFO",
00372       };
00373       if (pvt->newdigit == ' ') {      /* signalUpdate message */
00374          f.subclass = pvt->curDTMF;
00375          if (pvt->DTMFsched >= 0) {
00376             ast_sched_del(sched, pvt->DTMFsched);
00377             pvt->DTMFsched = -1;
00378          }
00379       } else {                /* Regular input or signal message */
00380          if (pvt->newduration) {    /* This is a signal, signalUpdate follows */
00381             f.frametype = AST_FRAME_DTMF_BEGIN;
00382             if (pvt->DTMFsched >= 0)
00383                ast_sched_del(sched, pvt->DTMFsched);
00384             pvt->DTMFsched = ast_sched_add(sched, pvt->newduration, oh323_simulate_dtmf_end, pvt);
00385             if (h323debug)
00386                ast_log(LOG_DTMF, "Scheduled DTMF END simulation for %d ms, id=%d\n", pvt->newduration, pvt->DTMFsched);
00387          }
00388          pvt->curDTMF = pvt->newdigit;
00389       }
00390       ast_queue_frame(c, &f);
00391       pvt->newdigit = -1;
00392    }
00393    if (pvt->update_rtp_info > 0) {
00394       if (pvt->rtp) {
00395          ast_jb_configure(c, &global_jbconf);
00396          c->fds[0] = ast_rtp_fd(pvt->rtp);
00397          c->fds[1] = ast_rtcp_fd(pvt->rtp);
00398          ast_queue_frame(pvt->owner, &ast_null_frame);   /* Tell Asterisk to apply changes */
00399       }
00400       pvt->update_rtp_info = -1;
00401    }
00402 }

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 2174 of file chan_h323.c.

References __oh323_new(), AST_CAUSE_UNALLOCATED, ast_exists_extension(), ast_log(), ast_mutex_unlock(), AST_STATE_RINGING, oh323_pvt::cd, oh323_pvt::context, oh323_pvt::exten, find_call_locked(), oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, and LOG_NOTICE.

Referenced by load_module().

02175 {
02176    struct oh323_pvt *pvt;
02177    struct ast_channel *c = NULL;
02178    enum {ext_original, ext_s, ext_i, ext_notexists} try_exten;
02179    char tmp_exten[sizeof(pvt->exten)];
02180 
02181    if (h323debug)
02182       ast_log(LOG_DEBUG, "Preparing Asterisk to answer for %s\n", token);
02183 
02184    /* Find the call or allocate a private structure if call not found */
02185    pvt = find_call_locked(call_reference, token);
02186    if (!pvt) {
02187       ast_log(LOG_ERROR, "Something is wrong: answer_call\n");
02188       return 0;
02189    }
02190    /* Check if requested extension@context pair exists in the dialplan */
02191    ast_copy_string(tmp_exten, pvt->exten, sizeof(tmp_exten));
02192 
02193    /* Try to find best extension in specified context */
02194    if ((tmp_exten[0] != '\0') && (tmp_exten[1] == '\0')) {
02195       if (tmp_exten[0] == 's')
02196          try_exten = ext_s;
02197       else if (tmp_exten[0] == 'i')
02198          try_exten = ext_i;
02199       else
02200          try_exten = ext_original;
02201    } else
02202       try_exten = ext_original;
02203    do {
02204       if (ast_exists_extension(NULL, pvt->context, tmp_exten, 1, NULL))
02205          break;
02206       switch (try_exten) {
02207       case ext_original:
02208          tmp_exten[0] = 's';
02209          tmp_exten[1] = '\0';
02210          try_exten = ext_s;
02211          break;
02212       case ext_s:
02213          tmp_exten[0] = 'i';
02214          try_exten = ext_i;
02215          break;
02216       case ext_i:
02217          try_exten = ext_notexists;
02218          break;
02219       default:
02220          break;
02221       }
02222    } while (try_exten != ext_notexists);
02223 
02224    /* Drop the call if we don't have <exten>, s and i extensions */
02225    if (try_exten == ext_notexists) {
02226       ast_log(LOG_NOTICE, "Dropping call because extensions '%s', 's' and 'i' doesn't exists in context [%s]\n", pvt->exten, pvt->context);
02227       ast_mutex_unlock(&pvt->lock);
02228       h323_clear_call(token, AST_CAUSE_UNALLOCATED);
02229       return 0;
02230    } else if ((try_exten != ext_original) && (strcmp(pvt->exten, tmp_exten) != 0)) {
02231       if (h323debug)
02232          ast_log(LOG_DEBUG, "Going to extension %s@%s because %s@%s isn't exists\n", tmp_exten, pvt->context, pvt->exten, pvt->context);
02233       ast_copy_string(pvt->exten, tmp_exten, sizeof(pvt->exten));
02234    }
02235 
02236    /* allocate a channel and tell asterisk about it */
02237    c = __oh323_new(pvt, AST_STATE_RINGING, pvt->cd.call_token);
02238 
02239    /* And release when done */
02240    ast_mutex_unlock(&pvt->lock);
02241    if (!c) {
02242       ast_log(LOG_ERROR, "Couldn't create channel. This is bad\n");
02243       return 0;
02244    }
02245    return 1;
02246 }

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

AST_MUTEX_DEFINE_STATIC ( h323_reload_lock   ) 

AST_MUTEX_DEFINE_STATIC ( caplock   ) 

AST_MUTEX_DEFINE_STATIC ( monlock   ) 

AST_MUTEX_DEFINE_STATIC ( iflock   ) 

Protect the interface list (oh323_pvt)

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

Definition at line 1191 of file chan_h323.c.

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

Referenced by realtime_alias(), and reload_config().

01192 {
01193    struct oh323_alias *alias;
01194    int found = 0;
01195 
01196    alias = ASTOBJ_CONTAINER_FIND_UNLINK_FULL(&aliasl, name, name, 0, 0, strcasecmp);
01197 
01198    if (alias)
01199       found++;
01200    else {
01201       if (!(alias = (struct oh323_alias *)calloc(1, sizeof(*alias))))
01202          return NULL;
01203       ASTOBJ_INIT(alias);
01204    }
01205    if (!found && name)
01206       ast_copy_string(alias->name, name, sizeof(alias->name));
01207    for (; v || ((v = alt) && !(alt = NULL)); v = v->next) {
01208       if (!strcasecmp(v->name, "e164")) {
01209          ast_copy_string(alias->e164, v->value, sizeof(alias->e164));
01210       } else if (!strcasecmp(v->name, "prefix")) {
01211          ast_copy_string(alias->prefix, v->value, sizeof(alias->prefix));
01212       } else if (!strcasecmp(v->name, "context")) {
01213          ast_copy_string(alias->context, v->value, sizeof(alias->context));
01214       } else if (!strcasecmp(v->name, "secret")) {
01215          ast_copy_string(alias->secret, v->value, sizeof(alias->secret));
01216       } else {
01217          if (strcasecmp(v->value, "h323")) {
01218             ast_log(LOG_WARNING, "Keyword %s does not make sense in type=h323\n", v->name);
01219          }
01220       }
01221    }
01222    ASTOBJ_UNMARK(alias);
01223    return alias;
01224 }

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

Definition at line 1440 of file chan_h323.c.

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

Referenced by realtime_peer(), reload_config(), and set_config().

01441 {
01442    struct oh323_peer *peer;
01443    struct ast_ha *oldha;
01444    int found = 0;
01445 
01446    peer = ASTOBJ_CONTAINER_FIND_UNLINK_FULL(&peerl, name, name, 0, 0, strcmp);
01447 
01448    if (peer)
01449       found++;
01450    else {
01451       if (!(peer = (struct oh323_peer*)calloc(1, sizeof(*peer))))
01452          return NULL;
01453       ASTOBJ_INIT(peer);
01454    }
01455    oldha = peer->ha;
01456    peer->ha = NULL;
01457    memcpy(&peer->options, &global_options, sizeof(peer->options));
01458    peer->addr.sin_port = htons(h323_signalling_port);
01459    peer->addr.sin_family = AF_INET;
01460    if (!found && name)
01461       ast_copy_string(peer->name, name, sizeof(peer->name));
01462 
01463 #if 0 /* XXX Port channel variables functionality from chan_sip XXX */
01464    if (peer->chanvars) {
01465       ast_variables_destroy(peer->chanvars);
01466       peer->chanvars = NULL;
01467    }
01468 #endif
01469    /* Default settings for mailbox */
01470    peer->mailbox[0] = '\0';
01471 
01472    for (; v || ((v = alt) && !(alt = NULL)); v = v->next) {
01473       if (!update_common_options(v, &peer->options))
01474          continue;
01475       if (!strcasecmp(v->name, "host")) {
01476          if (!strcasecmp(v->value, "dynamic")) {
01477             ast_log(LOG_ERROR, "Dynamic host configuration not implemented.\n");
01478             ASTOBJ_UNREF(peer, oh323_destroy_peer);
01479             return NULL;
01480          }
01481          if (ast_get_ip(&peer->addr, v->value)) {
01482             ast_log(LOG_ERROR, "Could not determine IP for %s\n", v->value);
01483             ASTOBJ_UNREF(peer, oh323_destroy_peer);
01484             return NULL;
01485          }
01486       } else if (!strcasecmp(v->name, "port")) {
01487          peer->addr.sin_port = htons(atoi(v->value));
01488       } else if (!strcasecmp(v->name, "permit") ||
01489                !strcasecmp(v->name, "deny")) {
01490          peer->ha = ast_append_ha(v->name, v->value, peer->ha);
01491       } else if (!strcasecmp(v->name, "mailbox")) {
01492          ast_copy_string(peer->mailbox, v->value, sizeof(peer->mailbox));
01493       }
01494    }
01495    ASTOBJ_UNMARK(peer);
01496    ast_free_ha(oldha);
01497    return peer;
01498 }

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

Definition at line 1334 of file chan_h323.c.

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

Referenced by realtime_user(), reload_config(), and set_config().

01335 {
01336    struct oh323_user *user;
01337    struct ast_ha *oldha;
01338    int found = 0;
01339    int format;
01340 
01341    user = ASTOBJ_CONTAINER_FIND_UNLINK_FULL(&userl, name, name, 0, 0, strcmp);
01342 
01343    if (user)
01344       found++;
01345    else {
01346       if (!(user = (struct oh323_user *)calloc(1, sizeof(*user))))
01347          return NULL;
01348       ASTOBJ_INIT(user);
01349    }
01350    oldha = user->ha;
01351    user->ha = (struct ast_ha *)NULL;
01352    memcpy(&user->options, &global_options, sizeof(user->options));
01353    /* Set default context */
01354    ast_copy_string(user->context, default_context, sizeof(user->context));
01355    if (user && !found)
01356       ast_copy_string(user->name, name, sizeof(user->name));
01357 
01358 #if 0 /* XXX Port channel variables functionality from chan_sip XXX */
01359    if (user->chanvars) {
01360       ast_variables_destroy(user->chanvars);
01361       user->chanvars = NULL;
01362    }
01363 #endif
01364 
01365    for (; v || ((v = alt) && !(alt = NULL)); v = v->next) {
01366       if (!update_common_options(v, &user->options))
01367          continue;
01368       if (!strcasecmp(v->name, "context")) {
01369          ast_copy_string(user->context, v->value, sizeof(user->context));
01370       } else if (!strcasecmp(v->name, "secret")) {
01371          ast_copy_string(user->secret, v->value, sizeof(user->secret));
01372       } else if (!strcasecmp(v->name, "accountcode")) {
01373          ast_copy_string(user->accountcode, v->value, sizeof(user->accountcode));
01374       } else if (!strcasecmp(v->name, "host")) {
01375          if (!strcasecmp(v->value, "dynamic")) {
01376             ast_log(LOG_ERROR, "A dynamic host on a type=user does not make any sense\n");
01377             ASTOBJ_UNREF(user, oh323_destroy_user);
01378             return NULL;
01379          } else if (ast_get_ip(&user->addr, v->value)) {
01380             ASTOBJ_UNREF(user, oh323_destroy_user);
01381             return NULL;
01382          }
01383          /* Let us know we need to use ip authentication */
01384          user->host = 1;
01385       } else if (!strcasecmp(v->name, "amaflags")) {
01386          format = ast_cdr_amaflags2int(v->value);
01387          if (format < 0) {
01388             ast_log(LOG_WARNING, "Invalid AMA Flags: %s at line %d\n", v->value, v->lineno);
01389          } else {
01390             user->amaflags = format;
01391          }
01392       } else if (!strcasecmp(v->name, "permit") ||
01393                !strcasecmp(v->name, "deny")) {
01394          user->ha = ast_append_ha(v->name, v->value, user->ha);
01395       }
01396    }
01397    ASTOBJ_UNMARK(user);
01398    ast_free_ha(oldha);
01399    return user;
01400 }

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 2265 of file chan_h323.c.

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

Referenced by load_module().

02266 {
02267    struct oh323_pvt *pvt;
02268 
02269    if (h323debug)
02270       ast_log(LOG_DEBUG, "Ringing on %s\n", token);
02271 
02272    pvt = find_call_locked(call_reference, token);
02273    if (!pvt) {
02274       ast_log(LOG_ERROR, "Something is wrong: ringing\n");
02275       return;
02276    }
02277    if (!pvt->owner) {
02278       ast_mutex_unlock(&pvt->lock);
02279       ast_log(LOG_ERROR, "Channel has no owner\n");
02280       return;
02281    }
02282    update_state(pvt, AST_STATE_RINGING, AST_CONTROL_RINGING);
02283    ast_mutex_unlock(&pvt->lock);
02284    return;
02285 }

static void cleanup_call_details ( call_details_t *  cd  )  [static]

Definition at line 416 of file chan_h323.c.

References free.

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

00417 {
00418    if (cd->call_token) {
00419       free(cd->call_token);
00420       cd->call_token = NULL;
00421    }
00422    if (cd->call_source_aliases) {
00423       free(cd->call_source_aliases);
00424       cd->call_source_aliases = NULL;
00425    }
00426    if (cd->call_dest_alias) {
00427       free(cd->call_dest_alias);
00428       cd->call_dest_alias = NULL;
00429    }
00430    if (cd->call_source_name) {
00431       free(cd->call_source_name);
00432       cd->call_source_name = NULL;
00433    }
00434    if (cd->call_source_e164) {
00435       free(cd->call_source_e164);
00436       cd->call_source_e164 = NULL;
00437    }
00438    if (cd->call_dest_e164) {
00439       free(cd->call_dest_e164);
00440       cd->call_dest_e164 = NULL;
00441    }
00442    if (cd->sourceIp) {
00443       free(cd->sourceIp);
00444       cd->sourceIp = NULL;
00445    }
00446    if (cd->redirect_number) {
00447       free(cd->redirect_number);
00448       cd->redirect_number = NULL;
00449    }
00450 }

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

Call-back function to cleanup communication Returns nothing,

Definition at line 2291 of file chan_h323.c.

References ast_channel::_softhangup, oh323_pvt::alreadygone, ast_channel_trylock, ast_channel_unlock, ast_dsp_free(), ast_log(), ast_mutex_unlock(), ast_queue_hangup(), ast_rtp_destroy(), AST_SOFTHANGUP_DEV, oh323_pvt::cd, cleanup_call_details(), find_call_locked(), oh323_pvt::lock, ast_channel::lock, LOG_DEBUG, LOG_NOTICE, oh323_pvt::owner, oh323_pvt::rtp, and oh323_pvt::vad.

Referenced by load_module().

02292 {
02293    struct oh323_pvt *pvt;
02294 
02295    if (h323debug)
02296       ast_log(LOG_DEBUG, "Cleaning connection to %s\n", call_token);
02297 
02298    while (1) {
02299       pvt = find_call_locked(call_reference, call_token);
02300       if (!pvt) {
02301          if (h323debug)
02302             ast_log(LOG_DEBUG, "No connection for %s\n", call_token);
02303          return;
02304       }
02305       if (!pvt->owner || !ast_channel_trylock(pvt->owner))
02306          break;
02307 #if 1
02308 #ifdef DEBUG_THREADS
02309       ast_log(LOG_NOTICE, "Avoiding H.323 destory deadlock on %s, locked at %ld/%d by %s (%s:%d)\n", call_token, pvt->owner->lock.thread[0], pvt->owner->lock.reentrancy, pvt->owner->lock.func[0], pvt->owner->lock.file[0], pvt->owner->lock.lineno[0]);
02310 #else
02311       ast_log(LOG_NOTICE, "Avoiding H.323 destory deadlock on %s\n", call_token);
02312 #endif
02313 #endif
02314       ast_mutex_unlock(&pvt->lock);
02315       usleep(1);
02316    }
02317    if (pvt->rtp) {
02318       /* Immediately stop RTP */
02319       ast_rtp_destroy(pvt->rtp);
02320       pvt->rtp = NULL;
02321    }
02322    /* Free dsp used for in-band DTMF detection */
02323    if (pvt->vad) {
02324       ast_dsp_free(pvt->vad);
02325       pvt->vad = NULL;
02326    }
02327    cleanup_call_details(&pvt->cd);
02328    pvt->alreadygone = 1;
02329    /* Send hangup */
02330    if (pvt->owner) {
02331       pvt->owner->_softhangup |= AST_SOFTHANGUP_DEV;
02332       ast_queue_hangup(pvt->owner);
02333       ast_channel_unlock(pvt->owner);
02334    }
02335    ast_mutex_unlock(&pvt->lock);
02336    if (h323debug)
02337       ast_log(LOG_DEBUG, "Connection to %s cleaned\n", call_token);
02338    return;
02339 }

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 1999 of file chan_h323.c.

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

Referenced by load_module().

02000 {
02001    struct oh323_pvt *pvt;
02002 
02003    if (h323debug)
02004       ast_log(LOG_DEBUG, "Call %s answered\n", token);
02005 
02006    pvt = find_call_locked(call_reference, token);
02007    if (!pvt) {
02008       ast_log(LOG_ERROR, "Something is wrong: connection\n");
02009       return;
02010    }
02011 
02012    /* Inform asterisk about remote party connected only on outgoing calls */
02013    if (!pvt->outgoing) {
02014       ast_mutex_unlock(&pvt->lock);
02015       return;
02016    }
02017    /* Do not send ANSWER message more than once */
02018    if (!pvt->connection_established) {
02019       pvt->connection_established = 1;
02020       update_state(pvt, -1, AST_CONTROL_ANSWER);
02021    }
02022    ast_mutex_unlock(&pvt->lock);
02023    return;
02024 }

static char* convertcap ( int  cap  )  [static]

Definition at line 3040 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().

03041 {
03042    switch (cap) {
03043    case AST_FORMAT_G723_1:
03044       return "G.723";
03045    case AST_FORMAT_GSM:
03046       return "GSM";
03047    case AST_FORMAT_ULAW:
03048       return "ULAW";
03049    case AST_FORMAT_ALAW:
03050       return "ALAW";
03051    case AST_FORMAT_G722:
03052       return "G.722";
03053    case AST_FORMAT_ADPCM:
03054       return "G.728";
03055    case AST_FORMAT_G729A:
03056       return "G.729";
03057    case AST_FORMAT_SPEEX:
03058       return "SPEEX";
03059    case AST_FORMAT_ILBC:
03060       return "ILBC";
03061    default:
03062       ast_log(LOG_NOTICE, "Don't know how to deal with mode %d\n", cap);
03063       return NULL;
03064    }
03065 }

static int create_addr ( struct oh323_pvt pvt,
char *  opeer 
) [static]

Definition at line 1596 of file chan_h323.c.

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

Referenced by cache_get_callno_locked(), iax2_call(), iax2_provision(), iax2_request(), oh323_request(), sip_notify(), sip_request_call(), and transmit_register().

01597 {
01598    struct hostent *hp;
01599    struct ast_hostent ahp;
01600    struct oh323_peer *p;
01601    int portno;
01602    int found = 0;
01603    char *port;
01604    char *hostn;
01605    char peer[256] = "";
01606 
01607    ast_copy_string(peer, opeer, sizeof(peer));
01608    port = strchr(peer, ':');
01609    if (port) {
01610       *port = '\0';
01611       port++;
01612    }
01613    pvt->sa.sin_family = AF_INET;
01614    p = find_peer(peer, NULL, 1);
01615    if (p) {
01616       found++;
01617       memcpy(&pvt->options, &p->options, sizeof(pvt->options));
01618       pvt->jointcapability = pvt->options.capability;
01619       if (pvt->options.dtmfmode) {
01620          if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
01621             pvt->nonCodecCapability |= AST_RTP_DTMF;
01622          } else {
01623             pvt->nonCodecCapability &= ~AST_RTP_DTMF;
01624          }
01625       }
01626       if (p->addr.sin_addr.s_addr) {
01627          pvt->sa.sin_addr = p->addr.sin_addr;
01628          pvt->sa.sin_port = p->addr.sin_port;
01629       }
01630       ASTOBJ_UNREF(p, oh323_destroy_peer);
01631    }
01632    if (!p && !found) {
01633       hostn = peer;
01634       if (port) {
01635          portno = atoi(port);
01636       } else {
01637          portno = h323_signalling_port;
01638       }
01639       hp = ast_gethostbyname(hostn, &ahp);
01640       if (hp) {
01641          memcpy(&pvt->sa.sin_addr, hp->h_addr, sizeof(pvt->sa.sin_addr));
01642          pvt->sa.sin_port = htons(portno);
01643          /* Look peer by address */
01644          p = find_peer(NULL, &pvt->sa, 1);
01645          memcpy(&pvt->options, (p ? &p->options : &global_options), sizeof(pvt->options));
01646          pvt->jointcapability = pvt->options.capability;
01647          if (p) {
01648             ASTOBJ_UNREF(p, oh323_destroy_peer);
01649          }
01650          if (pvt->options.dtmfmode) {
01651             if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
01652                pvt->nonCodecCapability |= AST_RTP_DTMF;
01653             } else {
01654                pvt->nonCodecCapability &= ~AST_RTP_DTMF;
01655             }
01656          }
01657          return 0;
01658       } else {
01659          ast_log(LOG_WARNING, "No such host: %s\n", peer);
01660          return -1;
01661       }
01662    } else if (!found) {
01663       return -1;
01664    } else {
01665       return 0;
01666    }
01667 }

static void delete_aliases ( void   )  [static]

Definition at line 2740 of file chan_h323.c.

References aliasl, ASTOBJ_CONTAINER_PRUNE_MARKED, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_CONTAINER_UNLOCK, ASTOBJ_CONTAINER_WRLOCK, ASTOBJ_MARK, ASTOBJ_RDLOCK, ASTOBJ_UNLOCK, and oh323_destroy_alias().

Referenced by reload_config().

02741 {
02742    int pruned = 0;
02743 
02744    /* Delete all aliases */
02745    ASTOBJ_CONTAINER_WRLOCK(&aliasl);
02746    ASTOBJ_CONTAINER_TRAVERSE(&aliasl, 1, do {
02747       ASTOBJ_RDLOCK(iterator);
02748       ASTOBJ_MARK(iterator);
02749       ++pruned;
02750       ASTOBJ_UNLOCK(iterator);
02751    } while (0) );
02752    if (pruned) {
02753       ASTOBJ_CONTAINER_PRUNE_MARKED(&aliasl, oh323_destroy_alias);
02754    }
02755    ASTOBJ_CONTAINER_UNLOCK(&aliasl);
02756 }

static void delete_users ( void   )  [static]

Definition at line 2714 of file chan_h323.c.

References ASTOBJ_CONTAINER_PRUNE_MARKED, ASTOBJ_CONTAINER_TRAVERSE, ASTOBJ_CONTAINER_UNLOCK, ASTOBJ_CONTAINER_WRLOCK, ASTOBJ_MARK, ASTOBJ_RDLOCK, ASTOBJ_UNLOCK, oh323_destroy_user(), peerl, and userl.

Referenced by __unload_module(), reload_config(), and set_config_destroy().

02715 {
02716    int pruned = 0;
02717 
02718    /* Delete all users */
02719    ASTOBJ_CONTAINER_WRLOCK(&userl);
02720    ASTOBJ_CONTAINER_TRAVERSE(&userl, 1, do {
02721       ASTOBJ_RDLOCK(iterator);
02722       ASTOBJ_MARK(iterator);
02723       ++pruned;
02724       ASTOBJ_UNLOCK(iterator);
02725    } while (0) );
02726    if (pruned) {
02727       ASTOBJ_CONTAINER_PRUNE_MARKED(&userl, oh323_destroy_user);
02728    }
02729    ASTOBJ_CONTAINER_UNLOCK(&userl);
02730 
02731    ASTOBJ_CONTAINER_WRLOCK(&peerl);
02732    ASTOBJ_CONTAINER_TRAVERSE(&peerl, 1, do {
02733       ASTOBJ_RDLOCK(iterator);
02734       ASTOBJ_MARK(iterator);
02735       ASTOBJ_UNLOCK(iterator);
02736    } while (0) );
02737    ASTOBJ_CONTAINER_UNLOCK(&peerl);
02738 }

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

Definition at line 2442 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_verbose(), h323_do_reload(), iflist, oh323_pvt::lock, oh323_pvt::needdestroy, oh323_pvt::next, option_verbose, and VERBOSE_PREFIX_1.

Referenced by restart_monitor().

02443 {
02444    int res;
02445    int reloading;
02446    struct oh323_pvt *oh323 = NULL;
02447 
02448    for(;;) {
02449       /* Check for a reload request */
02450       ast_mutex_lock(&h323_reload_lock);
02451       reloading = h323_reloading;
02452       h323_reloading = 0;
02453       ast_mutex_unlock(&h323_reload_lock);
02454       if (reloading) {
02455          if (option_verbose > 0) {
02456             ast_verbose(VERBOSE_PREFIX_1 "Reloading H.323\n");
02457          }
02458          h323_do_reload();
02459       }
02460       /* Check for interfaces needing to be killed */
02461       if (!ast_mutex_trylock(&iflock)) {
02462 #if 1
02463          do {
02464             for (oh323 = iflist; oh323; oh323 = oh323->next) {
02465                if (!ast_mutex_trylock(&oh323->lock)) {
02466                   if (oh323->needdestroy) {
02467                      __oh323_destroy(oh323);
02468                      break;
02469                   }
02470                   ast_mutex_unlock(&oh323->lock);
02471                }
02472             }
02473          } while (/*oh323*/ 0);
02474 #else
02475 restartsearch:
02476          oh323 = iflist;
02477          while(oh323) {
02478             if (!ast_mutex_trylock(&oh323->lock)) {
02479                if (oh323->needdestroy) {
02480                   __oh323_destroy(oh323);
02481                   goto restartsearch;
02482                }
02483                ast_mutex_unlock(&oh323->lock);
02484                oh323 = oh323->next;
02485             }
02486          }
02487 #endif
02488          ast_mutex_unlock(&iflock);
02489       } else
02490          oh323 = (struct oh323_pvt *)1;   /* Force fast loop */
02491       pthread_testcancel();
02492       /* Wait for sched or io */
02493       res = ast_sched_wait(sched);
02494       if ((res < 0) || (res > 1000)) {
02495          res = 1000;
02496       }
02497       /* Do not wait if some channel(s) is destroyed, probably, more available too */
02498       if (oh323)
02499          res = 1;
02500       res = ast_io_wait(io, res);
02501       pthread_testcancel();
02502       ast_mutex_lock(&monlock);
02503       if (res >= 0) {
02504          ast_sched_runq(sched);
02505       }
02506       ast_mutex_unlock(&monlock);
02507    }
02508    /* Never reached */
02509    return NULL;
02510 }

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 the local RTP information

Definition at line 1845 of file chan_h323.c.

References __oh323_rtp_create(), ast_inet_ntoa(), ast_log(), ast_mutex_unlock(), ast_rtp_get_us(), find_call_locked(), free, oh323_pvt::lock, LOG_DEBUG, LOG_ERROR, malloc, and oh323_pvt::rtp.

Referenced by load_module().

01846 {
01847    struct oh323_pvt *pvt;
01848    struct sockaddr_in us;
01849    struct rtp_info *info;
01850 
01851    info = (struct rtp_info *)malloc(sizeof(struct rtp_info));
01852    if (!info) {
01853       ast_log(LOG_ERROR, "Unable to allocated info structure, this is very bad\n");
01854       return NULL;
01855    }
01856    pvt = find_call_locked(call_reference, token);
01857    if (!pvt) {
01858       free(info);
01859       ast_log(LOG_ERROR, "Unable to find call %s(%d)\n", token, call_reference);
01860       return NULL;
01861    }
01862    if (!pvt->rtp)
01863       __oh323_rtp_create(pvt);
01864    if (!pvt->rtp) {
01865       ast_mutex_unlock(&pvt->lock);
01866       free(info);
01867       ast_log(LOG_ERROR, "No RTP stream is available for call %s (%d)", token, call_reference);
01868       return NULL;
01869    }
01870    /* figure out our local RTP port and tell the H.323 stack about it */
01871    ast_rtp_get_us(pvt->rtp, &us);
01872    ast_mutex_unlock(&pvt->lock);
01873 
01874    ast_copy_string(info->addr, ast_inet_ntoa(us.sin_addr), sizeof(info->addr));
01875    info->port = ntohs(us.sin_port);
01876    if (h323debug)
01877       ast_log(LOG_DEBUG, "Sending RTP 'US' %s:%d\n", info->addr, info->port);
01878    return info;
01879 }

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

Find a call by alias

Definition at line 1757 of file chan_h323.c.

References aliasl, ASTOBJ_CONTAINER_FIND, and realtime_alias().

Referenced by __get_header(), add_header(), and setup_incoming_call().

01758 {
01759    struct oh323_alias *a;
01760 
01761    a = ASTOBJ_CONTAINER_FIND(&aliasl, source_aliases);
01762 
01763    if (!a && realtime)
01764       a = realtime_alias(source_aliases);
01765 
01766    return a;
01767 }

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

Definition at line 1144 of file chan_h323.c.

References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::cd, iflist, oh323_pvt::lock, LOG_WARNING, oh323_pvt::needdestroy, and oh323_pvt::next.

Referenced by answer_call(), chan_ringing(), cleanup_connection(), connection_made(), external_rtp_create(), hangup_connection(), progress(), receive_digit(), set_dtmf_payload(), set_local_capabilities(), set_peer_capabilities(), and setup_rtp_connection().

01145 {
01146    struct oh323_pvt *pvt;
01147 
01148    ast_mutex_lock(&iflock);
01149    pvt = iflist;
01150    while(pvt) {
01151       if (!pvt->needdestroy && ((signed int)pvt->cd.call_reference == call_reference)) {
01152          /* Found the call */
01153          if ((token != NULL) && (!strcmp(pvt->cd.call_token, token))) {
01154             ast_mutex_lock(&pvt->lock);
01155             ast_mutex_unlock(&iflock);
01156             return pvt;
01157          } else if (token == NULL) {
01158             ast_log(LOG_WARNING, "Call Token is NULL\n");
01159             ast_mutex_lock(&pvt->lock);
01160             ast_mutex_unlock(&iflock);
01161             return pvt;
01162          }
01163       }
01164       pvt = pvt->next;
01165    }
01166    ast_mutex_unlock(&iflock);
01167    return NULL;
01168 }

static struct oh323_peer* find_peer ( const char *  peer,
struct sockaddr_in *  sin,
int  realtime 
) [static, read]

Definition at line 1578 of file chan_h323.c.

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

Referenced by _sip_show_peer(), check_user_full(), create_addr(), dundi_encrypt(), function_iaxpeer(), function_sippeer(), handle_command_response(), iax2_devicestate(), iax2_prune_realtime(), iax2_show_peer(), register_verify(), registry_authrequest(), set_config(), sip_devicestate(), sip_do_debug_peer(), sip_peer_hold(), update_call_counter(), and update_registry().

01579 {
01580    struct oh323_peer *p;
01581 
01582    if (peer)
01583       p = ASTOBJ_CONTAINER_FIND(&peerl, peer);
01584    else
01585       p = ASTOBJ_CONTAINER_FIND_FULL(&peerl, sin, addr, 0, 0, oh323_addrcmp);
01586 
01587    if (!p && realtime)
01588       p = realtime_peer(peer, sin);
01589 
01590    if (!p && h323debug)
01591       ast_log(LOG_DEBUG, "Could not find peer by name %s or address %s\n", (peer ? peer : "<NONE>"), (sin ? ast_inet_ntoa(sin->sin_addr) : "<NONE>"));
01592 
01593    return p;
01594 }

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

Definition at line 1548 of file chan_h323.c.

References ast_log(), ASTOBJ_CONTAINER_FIND, ASTOBJ_CONTAINER_FIND_FULL, LOG_DEBUG, oh323_addrcmp_str(), realtime_user(), and userl.

Referenced by admin_exec(), advanced_options(), check_user_full(), forward_message(), leave_voicemail(), setup_incoming_call(), sip_show_user(), update_call_counter(), vm_authenticate(), vm_box_exists(), and vm_execmain().

01549 {
01550    struct oh323_user *u;
01551 
01552    if (userbyalias)
01553       u = ASTOBJ_CONTAINER_FIND(&userl, cd->call_source_aliases);
01554    else
01555       u = ASTOBJ_CONTAINER_FIND_FULL(&userl, cd->sourceIp, addr.sin_addr, 0, 0, oh323_addrcmp_str);
01556 
01557    if (!u && realtime)
01558       u = realtime_user(cd);
01559 
01560    if (!u && h323debug)
01561       ast_log(LOG_DEBUG, "Could not find user by name %s or address %s\n", cd->call_source_aliases, cd->sourceIp);
01562 
01563    return u;
01564 }

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

Definition at line 2569 of file chan_h323.c.

References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.

02570 {
02571    if (argc < 2 || argc > 3) {
02572       return RESULT_SHOWUSAGE;
02573    }
02574    h323debug = 1;
02575    ast_cli(fd, "H.323 debug enabled\n");
02576    return RESULT_SUCCESS;
02577 }

static int h323_do_reload ( void   )  [static]

Definition at line 2996 of file chan_h323.c.

References reload_config().

Referenced by do_monitor().

02997 {
02998    reload_config(1);
02999    return 0;
03000 }

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

Definition at line 2549 of file chan_h323.c.

References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.

02550 {
02551    if (argc != 4) {
02552       return RESULT_SHOWUSAGE;
02553    }
02554    h323_debug(1, atoi(argv[3]));
02555    ast_cli(fd, "H.323 trace set to level %s\n", argv[2]);
02556    return RESULT_SUCCESS;
02557 }

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

Definition at line 2605 of file chan_h323.c.

References ast_verbose(), RESULT_SHOWUSAGE, RESULT_SUCCESS, and VERBOSE_PREFIX_3.

02606 {
02607    if (argc != 3) {
02608       return RESULT_SHOWUSAGE;
02609    }
02610    if (h323_soft_hangup(argv[2])) {
02611       ast_verbose(VERBOSE_PREFIX_3 "Hangup succeeded on %s\n", argv[2]);
02612    } else {
02613       ast_verbose(VERBOSE_PREFIX_3 "Hangup failed for %s\n", argv[2]);
02614    }
02615    return RESULT_SUCCESS;
02616 }

static int h323_gk_cycle ( int  fd,
int  argc,
char *  argv[] 
) [static]

Definition at line 2589 of file chan_h323.c.

References ast_log(), LOG_ERROR, RESULT_SHOWUSAGE, and RESULT_SUCCESS.

02590 {
02591    if (argc != 3) {
02592       return RESULT_SHOWUSAGE;
02593    }
02594    h323_gk_urq();
02595 
02596    /* Possibly register with a GK */
02597    if (!gatekeeper_disable) {
02598       if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) {
02599          ast_log(LOG_ERROR, "Gatekeeper registration failed.\n");
02600       }
02601    }
02602    return RESULT_SUCCESS;
02603 }

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

Definition at line 2579 of file chan_h323.c.

References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.

02580 {
02581    if (argc < 3 || argc > 4) {
02582       return RESULT_SHOWUSAGE;
02583    }
02584    h323debug = 0;
02585    ast_cli(fd, "H.323 debug disabled\n");
02586    return RESULT_SUCCESS;
02587 }

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

Definition at line 2559 of file chan_h323.c.

References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.

02560 {
02561    if (argc < 3 || argc > 4) {
02562       return RESULT_SHOWUSAGE;
02563    }
02564    h323_debug(0,0);
02565    ast_cli(fd, "H.323 trace disabled\n");
02566    return RESULT_SUCCESS;
02567 }

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

Definition at line 2983 of file chan_h323.c.

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

Referenced by reload().

02984 {
02985    ast_mutex_lock(&h323_reload_lock);
02986    if (h323_reloading) {
02987       ast_verbose("Previous H.323 reload not yet done\n");
02988    } else {
02989       h323_reloading = 1;
02990    }
02991    ast_mutex_unlock(&h323_reload_lock);
02992    restart_monitor();
02993    return 0;
02994 }

static int h323_tokens_show ( int  fd,
int  argc,
char *  argv[] 
) [static]

Definition at line 2618 of file chan_h323.c.

References RESULT_SHOWUSAGE, and RESULT_SUCCESS.

02619 {
02620    if (argc != 3) {
02621       return RESULT_SHOWUSAGE;
02622    }
02623    h323_show_tokens();
02624    return RESULT_SUCCESS;
02625 }

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

Definition at line 2341 of file chan_h323.c.

References ast_channel::_softhangup, ast_channel_trylock, ast_channel_unlock, ast_log(), ast_mutex_unlock(), ast_queue_hangup(), AST_SOFTHANGUP_DEV, find_call_locked(), oh323_pvt::hangupcause, ast_channel::hangupcause, oh323_pvt::lock, LOG_DEBUG, oh323_pvt::needhangup, and oh323_pvt::owner.

Referenced by load_module().

02342 {
02343    struct oh323_pvt *pvt;
02344 
02345    if (h323debug) {
02346       ast_log(LOG_DEBUG, "Hanging up connection to %s with cause %d\n", token, cause);
02347    }
02348 
02349    pvt = find_call_locked(call_reference, token);
02350    if (!pvt) {
02351       if (h323debug) {
02352          ast_log(LOG_DEBUG, "Connection to %s already cleared\n", token);
02353       }
02354       return;
02355    }
02356    if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
02357       pvt->owner->_softhangup |= AST_SOFTHANGUP_DEV;
02358       pvt->owner->hangupcause = pvt->hangupcause = cause;
02359       ast_queue_hangup(pvt->owner);
02360       ast_channel_unlock(pvt->owner);
02361    }
02362    else {
02363       pvt->needhangup = 1;
02364       pvt->hangupcause = cause;
02365       if (h323debug)
02366          ast_log(LOG_DEBUG, "Hangup for %s is pending\n", token);
02367    }
02368    ast_mutex_unlock(&pvt->lock);
02369 }

static enum ast_module_load_result load_module ( void   )  [static]

Definition at line 3100 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(), 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.

03101 {
03102    int res;
03103 
03104    h323debug = 0;
03105    sched = sched_context_create();
03106    if (!sched) {
03107       ast_log(LOG_WARNING, "Unable to create schedule context\n");
03108       return AST_MODULE_LOAD_FAILURE;
03109    }
03110    io = io_context_create();
03111    if (!io) {
03112       ast_log(LOG_WARNING, "Unable to create I/O context\n");
03113       return AST_MODULE_LOAD_FAILURE;
03114    }
03115    ast_cli_register(&cli_h323_reload);
03116    ASTOBJ_CONTAINER_INIT(&userl);
03117    ASTOBJ_CONTAINER_INIT(&peerl);
03118    ASTOBJ_CONTAINER_INIT(&aliasl);
03119    res = reload_config(0);
03120    if (res) {
03121       /* No config entry */
03122       ast_log(LOG_NOTICE, "Unload and load chan_h323.so again in order to receive configuration changes.\n");
03123       ast_cli_unregister(&cli_h323_reload);
03124       io_context_destroy(io);
03125       io = NULL;
03126       sched_context_destroy(sched);
03127       sched = NULL;
03128       ASTOBJ_CONTAINER_DESTROY(&userl);
03129       ASTOBJ_CONTAINER_DESTROY(&peerl);
03130       ASTOBJ_CONTAINER_DESTROY(&aliasl);
03131       return AST_MODULE_LOAD_DECLINE;
03132    } else {
03133       /* Make sure we can register our channel type */
03134       if (ast_channel_register(&oh323_tech)) {
03135          ast_log(LOG_ERROR, "Unable to register channel class 'H323'\n");
03136          ast_cli_unregister(&cli_h323_reload);
03137          h323_end_process();
03138          io_context_destroy(io);
03139          sched_context_destroy(sched);
03140 
03141          ASTOBJ_CONTAINER_DESTROYALL(&userl, oh323_destroy_user);
03142          ASTOBJ_CONTAINER_DESTROY(&userl);
03143          ASTOBJ_CONTAINER_DESTROYALL(&peerl, oh323_destroy_peer);
03144          ASTOBJ_CONTAINER_DESTROY(&peerl);
03145          ASTOBJ_CONTAINER_DESTROYALL(&aliasl, oh323_destroy_alias);
03146          ASTOBJ_CONTAINER_DESTROY(&aliasl);
03147 
03148          return AST_MODULE_LOAD_FAILURE;
03149       }
03150       ast_cli_register_multiple(cli_h323, sizeof(cli_h323) / sizeof(struct ast_cli_entry));
03151 
03152       ast_rtp_proto_register(&oh323_rtp);
03153 
03154       /* Register our callback functions */
03155       h323_callback_register(setup_incoming_call,
03156                   setup_outgoing_call,
03157                   external_rtp_create,
03158                   setup_rtp_connection,
03159                   cleanup_connection,
03160                   chan_ringing,
03161                   connection_made,
03162                   receive_digit,
03163                   answer_call,
03164                   progress,
03165                   set_dtmf_payload,
03166                   hangup_connection,
03167                   set_local_capabilities,
03168                   set_peer_capabilities);
03169       /* start the h.323 listener */
03170       if (h323_start_listener(h323_signalling_port, bindaddr)) {
03171          ast_log(LOG_ERROR, "Unable to create H323 listener.\n");
03172          ast_rtp_proto_unregister(&oh323_rtp);
03173          ast_cli_unregister_multiple(cli_h323, sizeof(cli_h323) / sizeof(struct ast_cli_entry));
03174          ast_cli_unregister(&cli_h323_reload);
03175          h323_end_process();
03176          io_context_destroy(io);
03177          sched_context_destroy(sched);
03178 
03179          ASTOBJ_CONTAINER_DESTROYALL(&userl, oh323_destroy_user);
03180          ASTOBJ_CONTAINER_DESTROY(&userl);
03181          ASTOBJ_CONTAINER_DESTROYALL(&peerl, oh323_destroy_peer);
03182          ASTOBJ_CONTAINER_DESTROY(&peerl);
03183          ASTOBJ_CONTAINER_DESTROYALL(&aliasl, oh323_destroy_alias);
03184          ASTOBJ_CONTAINER_DESTROY(&aliasl);
03185 
03186          return AST_MODULE_LOAD_FAILURE;
03187       }
03188       /* Possibly register with a GK */
03189       if (!gatekeeper_disable) {
03190          if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) {
03191             ast_log(LOG_ERROR, "Gatekeeper registration failed.\n");
03192             gatekeeper_disable = 1;
03193             res = AST_MODULE_LOAD_SUCCESS;
03194          }
03195       }
03196       /* And start the monitor for the first time */
03197       restart_monitor();
03198    }
03199    return res;
03200 }

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

Definition at line 1566 of file chan_h323.c.

References inaddrcmp().

Referenced by find_peer().

01567 {
01568    int res;
01569 
01570    if (!sin)
01571       res = -1;
01572    else
01573       res = inaddrcmp(&addr , sin);
01574 
01575    return res;
01576 }

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

Definition at line 1543 of file chan_h323.c.

References ast_inet_ntoa().

Referenced by find_user().

01544 {
01545    return strcmp(ast_inet_ntoa(inaddr), addr);
01546 }

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

Definition at line 1100 of file chan_h323.c.

References ast_log(), ast_mutex_init(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_destroy(), AST_RTP_DTMF, oh323_pvt::cd, oh323_pvt::context, oh323_pvt::DTMFsched, free, iflist, oh323_pvt::jointcapability, oh323_pvt::lock, LOG_ERROR, malloc, oh323_pvt::newcontrol, oh323_pvt::newdigit, oh323_pvt::newstate, oh323_pvt::next, oh323_pvt::nonCodecCapability, oh323_pvt::options, oh323_pvt::rtp, and oh323_pvt::update_rtp_info.

Referenced by oh323_request(), and setup_incoming_call().

01101 {
01102    struct oh323_pvt *pvt;
01103 
01104    pvt = (struct oh323_pvt *) malloc(sizeof(struct oh323_pvt));
01105    if (!pvt) {
01106       ast_log(LOG_ERROR, "Couldn't allocate private structure. This is bad\n");
01107       return NULL;
01108    }
01109    memset(pvt, 0, sizeof(struct oh323_pvt));
01110    pvt->cd.redirect_reason = -1;
01111    pvt->cd.transfer_capability = -1;
01112    /* Ensure the call token is allocated for outgoing call */
01113    if (!callid) {
01114       if ((pvt->cd).call_token == NULL) {
01115          (pvt->cd).call_token = (char *)malloc(128);
01116       }
01117       if (!pvt->cd.call_token) {
01118          ast_log(LOG_ERROR, "Not enough memory to alocate call token\n");
01119          ast_rtp_destroy(pvt->rtp);
01120          free(pvt);
01121          return NULL;
01122       }
01123       memset((char *)(pvt->cd).call_token, 0, 128);
01124       pvt->cd.call_reference = callid;
01125    }
01126    memcpy(&pvt->options, &global_options, sizeof(pvt->options));
01127    pvt->jointcapability = pvt->options.capability;
01128    if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
01129       pvt->nonCodecCapability |= AST_RTP_DTMF;
01130    } else {
01131       pvt->nonCodecCapability &= ~AST_RTP_DTMF;
01132    }
01133    ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
01134    pvt->newstate = pvt->newcontrol = pvt->newdigit = pvt->update_rtp_info = pvt->DTMFsched = -1;
01135    ast_mutex_init(&pvt->lock);
01136    /* Add to interface list */
01137    ast_mutex_lock(&iflock);
01138    pvt->next = iflist;
01139    iflist = pvt;
01140    ast_mutex_unlock(&iflock);
01141    return pvt;
01142 }

static int oh323_answer ( struct ast_channel c  )  [static]

Definition at line 668 of file chan_h323.c.

References ast_channel::_state, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_setstate(), AST_STATE_UP, oh323_pvt::cd, free, oh323_pvt::lock, LOG_DEBUG, oh323_update_info(), strdup, and ast_channel::tech_pvt.

00669 {
00670    int res;
00671    struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
00672    char *token;
00673 
00674    if (h323debug)
00675       ast_log(LOG_DEBUG, "Answering on %s\n", c->name);
00676 
00677    ast_mutex_lock(&pvt->lock);
00678    token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
00679    ast_mutex_unlock(&pvt->lock);
00680    res = h323_answering_call(token, 0);
00681    if (token)
00682       free(token);
00683 
00684    oh323_update_info(c);
00685    if (c->_state != AST_STATE_UP) {
00686       ast_setstate(c, AST_STATE_UP);
00687    }
00688    return res;
00689 }

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 589 of file chan_h323.c.

References ast_channel::_state, ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_STATE_DOWN, AST_STATE_RESERVED, ast_strlen_zero(), ast_transfercapability2str(), ast_verbose(), oh323_pvt::cd, ast_channel::cid, ast_callerid::cid_name, ast_callerid::cid_num, ast_callerid::cid_pres, ast_callerid::cid_rdnis, ast_callerid::cid_ton, oh323_pvt::exten, oh323_pvt::lock, LOG_DEBUG, LOG_NOTICE, LOG_WARNING, oh323_update_info(), option_verbose, oh323_pvt::options, oh323_pvt::outgoing, pbx_builtin_getvar_helper(), oh323_pvt::sa, ast_channel::tech_pvt, ast_channel::transfercapability, and VERBOSE_PREFIX_3.

00590 {
00591    int res = 0;
00592    struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt;
00593    const char *addr;
00594    char called_addr[1024];
00595 
00596    if (h323debug) {
00597       ast_log(LOG_DEBUG, "Calling to %s on %s\n", dest, c->name);
00598    }
00599    if ((c->_state != AST_STATE_DOWN) && (c->_state != AST_STATE_RESERVED)) {
00600       ast_log(LOG_WARNING, "Line is already in use (%s)\n", c->name);
00601       return -1;
00602    }
00603    ast_mutex_lock(&pvt->lock);
00604    if (!gatekeeper_disable) {
00605       if (ast_strlen_zero(pvt->exten)) {
00606          ast_copy_string(called_addr, dest, sizeof(called_addr));
00607       } else {
00608          snprintf(called_addr, sizeof(called_addr), "%s@%s", pvt->exten, dest);
00609       }
00610    } else {
00611       res = htons(pvt->sa.sin_port);
00612       addr = ast_inet_ntoa(pvt->sa.sin_addr);
00613       if (ast_strlen_zero(pvt->exten)) {
00614          snprintf(called_addr, sizeof(called_addr), "%s:%d", addr, res);
00615       } else {
00616          snprintf(called_addr, sizeof(called_addr), "%s@%s:%d", pvt->exten, addr, res);
00617       }
00618    }
00619    /* make sure null terminated */
00620    called_addr[sizeof(called_addr) - 1] = '\0';
00621 
00622    if (c->cid.cid_num)
00623       ast_copy_string(pvt->options.cid_num, c->cid.cid_num, sizeof(pvt->options.cid_num));
00624 
00625    if (c->cid.cid_name)
00626       ast_copy_string(pvt->options.cid_name, c->cid.cid_name, sizeof(pvt->options.cid_name));
00627 
00628    if (c->cid.cid_rdnis) {
00629       ast_copy_string(pvt->options.cid_rdnis, c->cid.cid_rdnis, sizeof(pvt->options.cid_rdnis));
00630    }
00631 
00632    pvt->options.presentation = c->cid.cid_pres;
00633    pvt->options.type_of_number = c->cid.cid_ton;
00634 
00635    if ((addr = pbx_builtin_getvar_helper(c, "PRIREDIRECTREASON"))) {
00636       if (!strcasecmp(addr, "UNKNOWN"))
00637          pvt->options.redirect_reason = 0;
00638       else if (!strcasecmp(addr, "BUSY"))
00639          pvt->options.redirect_reason = 1;
00640       else if (!strcasecmp(addr, "NO_REPLY"))
00641          pvt->options.redirect_reason = 2;
00642       else if (!strcasecmp(addr, "UNCONDITIONAL"))
00643          pvt->options.redirect_reason = 15;
00644       else
00645          pvt->options.redirect_reason = -1;
00646    } else
00647       pvt->options.redirect_reason = -1;
00648 
00649    pvt->options.transfer_capability = c->transfercapability;
00650 
00651    /* indicate that this is an outgoing call */
00652    pvt->outgoing = 1;
00653 
00654    if (option_verbose > 2)
00655       ast_verbose(VERBOSE_PREFIX_3 "Requested transfer capability: 0x%.2x - %s\n", c->transfercapability, ast_transfercapability2str(c->transfercapability));
00656    if (h323debug)
00657       ast_log(LOG_DEBUG, "Placing outgoing call to %s, %d\n", called_addr, pvt->options.dtmfcodec);
00658    ast_mutex_unlock(&pvt->lock);
00659    res = h323_make_call(called_addr, &(pvt->cd), &pvt->options);
00660    if (res) {
00661       ast_log(LOG_NOTICE, "h323_make_call failed(%s)\n", c->name);
00662       return -1;
00663    }
00664    oh323_update_info(c);
00665    return 0;
00666 }

static void oh323_destroy ( struct oh323_pvt pvt  )  [static]

Definition at line 500 of file chan_h323.c.

References __oh323_destroy(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::lock, LOG_DEBUG, and oh323_pvt::owner.

Referenced by oh323_request(), and setup_incoming_call().

00501 {
00502    if (h323debug) {
00503       ast_log(LOG_DEBUG, "Destroying channel %s\n", (pvt->owner ? pvt->owner->name : "<unknown>"));
00504    }
00505    ast_mutex_lock(&iflock);
00506    ast_mutex_lock(&pvt->lock);
00507    __oh323_destroy(pvt);
00508    ast_mutex_unlock(&iflock);
00509 }

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

Definition at line 284 of file chan_h323.c.

References ast_log(), free, and LOG_DEBUG.

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

00285 {
00286    if (h323debug)
00287       ast_log(LOG_DEBUG, "Destroying alias '%s'\n", alias->name);
00288    free(alias);
00289 }

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

Definition at line 299 of file chan_h323.c.

References ast_free_ha(), ast_log(), free, and LOG_DEBUG.

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

00300 {
00301    if (h323debug)
00302       ast_log(LOG_DEBUG, "Destroying peer '%s'\n", peer->name);
00303    ast_free_ha(peer->ha);
00304    free(peer);
00305 }

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

Definition at line 291 of file chan_h323.c.

References ast_free_ha(), ast_log(), free, and LOG_DEBUG.

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

00292 {
00293    if (h323debug)
00294       ast_log(LOG_DEBUG, "Destroying user '%s'\n", user->name);
00295    ast_free_ha(user->ha);
00296    free(user);
00297 }

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

Definition at line 511 of file chan_h323.c.

References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_begin(), oh323_pvt::cd, oh323_pvt::dtmf_pt, free, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, oh323_update_info(), oh323_pvt::options, oh323_pvt::rtp, strdup, ast_channel::tech_pvt, and oh323_pvt::txDtmfDigit.

00512 {
00513    struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
00514    char *token;
00515 
00516    if (!pvt) {
00517       ast_log(LOG_ERROR, "No private structure?! This is bad\n");
00518       return -1;
00519    }
00520    ast_mutex_lock(&pvt->lock);
00521    if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833) && (pvt->dtmf_pt > 0)) {
00522       /* out-of-band DTMF */
00523       if (h323debug) {
00524          ast_log(LOG_DTMF, "Begin sending out-of-band digit %c on %s\n", digit, c->name);
00525       }
00526       ast_rtp_senddigit_begin(pvt->rtp, digit);
00527       ast_mutex_unlock(&pvt->lock);
00528    } else if (pvt->txDtmfDigit != digit) {
00529       /* in-band DTMF */
00530       if (h323debug) {
00531          ast_log(LOG_DTMF, "Begin sending inband digit %c on %s\n", digit, c->name);
00532       }
00533       pvt->txDtmfDigit = digit;
00534       token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
00535       ast_mutex_unlock(&pvt->lock);
00536       h323_send_tone(token, digit);
00537       if (token) {
00538          free(token);
00539       }
00540    } else
00541       ast_mutex_unlock(&pvt->lock);
00542    oh323_update_info(c);
00543    return 0;
00544 }

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 550 of file chan_h323.c.

References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_end(), oh323_pvt::cd, oh323_pvt::dtmf_pt, free, oh323_pvt::lock, LOG_DTMF, LOG_ERROR, oh323_update_info(), oh323_pvt::options, oh323_pvt::rtp, strdup, ast_channel::tech_pvt, and oh323_pvt::txDtmfDigit.

00551 {
00552    struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
00553    char *token;
00554 
00555    if (!pvt) {
00556       ast_log(LOG_ERROR, "No private structure?! This is bad\n");
00557       return -1;
00558    }
00559    ast_mutex_lock(&pvt->lock);
00560    if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833) && (pvt->dtmf_pt > 0)) {
00561       /* out-of-band DTMF */
00562       if (h323debug) {
00563          ast_log(LOG_DTMF, "End sending out-of-band digit %c on %s, duration %d\n", digit, c->name, duration);
00564       }
00565       ast_rtp_senddigit_end(pvt->rtp, digit);
00566       ast_mutex_unlock(&pvt->lock);
00567    } else {
00568       /* in-band DTMF */
00569       if (h323debug) {
00570          ast_log(LOG_DTMF, "End sending inband digit %c on %s, duration %d\n", digit, c->name, duration);
00571       }
00572       pvt->txDtmfDigit = ' ';
00573       token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
00574       ast_mutex_unlock(&pvt->lock);
00575       h323_send_tone(token, ' ');
00576       if (token) {
00577          free(token);
00578       }
00579    }
00580    oh323_update_info(c);
00581    return 0;
00582 }

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

Definition at line 940 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.

00941 {
00942    struct oh323_pvt *pvt = (struct oh323_pvt *) newchan->tech_pvt;
00943 
00944    ast_mutex_lock(&pvt->lock);
00945    if (pvt->owner != oldchan) {
00946       ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, pvt->owner);
00947       return -1;
00948    }
00949    pvt->owner = newchan;
00950    ast_mutex_unlock(&pvt->lock);
00951    return 0;
00952 }

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

Definition at line 3017 of file chan_h323.c.

References ast_mutex_lock(), ast_mutex_unlock(), AST_RTP_GET_FAILED, AST_RTP_TRY_NATIVE, oh323_pvt::lock, oh323_pvt::options, oh323_pvt::rtp, and ast_channel::tech_pvt.

03018 {
03019    struct oh323_pvt *pvt;
03020    enum ast_rtp_get_result res = AST_RTP_GET_FAILED;
03021 
03022    if (!(pvt = (struct oh323_pvt *)chan->tech_pvt))
03023       return res;
03024 
03025    ast_mutex_lock(&pvt->lock);
03026    if (pvt->rtp && pvt->options.bridge) {
03027       *rtp = pvt->rtp;
03028       res = AST_RTP_TRY_NATIVE;
03029    }
03030    ast_mutex_unlock(&pvt->lock);
03031 
03032    return res;
03033 }

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

Definition at line 3035 of file chan_h323.c.

References AST_RTP_GET_FAILED.

03036 {
03037    return AST_RTP_GET_FAILED;
03038 }

static int oh323_hangup ( struct ast_channel c  )  [static]

Definition at line 691 of file chan_h323.c.

References oh323_pvt::alreadygone, AST_CAUSE_CALL_REJECTED, AST_CAUSE_NO_ANSWER, AST_CAUSE_NORMAL_CIRCUIT_CONGESTION, AST_CAUSE_NORMAL_CLEARING, AST_CAUSE_REQUESTED_CHAN_UNAVAIL, AST_CAUSE_USER_BUSY, ast_log(), ast_module_unref(), ast_mutex_lock(), ast_mutex_unlock(), oh323_pvt::cd, free, oh323_pvt::hangupcause, ast_channel::hangupcause, oh323_pvt::lock, LOG_DEBUG, LOG_WARNING, oh323_pvt::needdestroy, oh323_pvt::owner, pbx_builtin_getvar_helper(), strdup, and ast_channel::tech_pvt.

00692 {
00693    struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
00694    int q931cause = AST_CAUSE_NORMAL_CLEARING;
00695    char *call_token;
00696 
00697 
00698    if (h323debug)
00699       ast_log(LOG_DEBUG, "Hanging up and scheduling destroy of call %s\n", c->name);
00700 
00701    if (!c->tech_pvt) {
00702       ast_log(LOG_WARNING, "Asked to hangup channel not connected\n");
00703       return 0;
00704    }
00705    ast_mutex_lock(&pvt->lock);
00706    /* Determine how to disconnect */
00707    if (pvt->owner != c) {
00708       ast_log(LOG_WARNING, "Huh?  We aren't the owner?\n");
00709       ast_mutex_unlock(&pvt->lock);
00710       return 0;
00711    }
00712 
00713    pvt->owner = NULL;
00714    c->tech_pvt = NULL;
00715 
00716    if (c->hangupcause) {
00717       q931cause = c->hangupcause;
00718    } else {
00719       const char *cause = pbx_builtin_getvar_helper(c, "DIALSTATUS");
00720       if (cause) {
00721          if (!strcmp(cause, "CONGESTION")) {
00722             q931cause = AST_CAUSE_NORMAL_CIRCUIT_CONGESTION;
00723          } else if (!strcmp(cause, "BUSY")) {
00724             q931cause = AST_CAUSE_USER_BUSY;
00725          } else if (!strcmp(cause, "CHANISUNVAIL")) {
00726             q931cause = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
00727          } else if (!strcmp(cause, "NOANSWER")) {
00728             q931cause = AST_CAUSE_NO_ANSWER;
00729          } else if (!strcmp(cause, "CANCEL")) {
00730             q931cause = AST_CAUSE_CALL_REJECTED;
00731          }
00732       }
00733    }
00734 
00735    /* Start the process if it's not already started */
00736    if (!pvt->alreadygone && !pvt->hangupcause) {
00737       call_token = pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL;
00738       if (call_token) {
00739          /* Release lock to eliminate deadlock */
00740          ast_mutex_unlock(&pvt->lock);
00741          if (h323_clear_call(call_token, q931cause)) {
00742             ast_log(LOG_WARNING, "ClearCall failed.\n");
00743          }
00744          free(call_token);
00745          ast_mutex_lock(&pvt->lock);
00746       }
00747    }
00748    pvt->needdestroy = 1;
00749    ast_mutex_unlock(&pvt->lock);
00750 
00751    /* Update usage counter */
00752    ast_module_unref(ast_module_info->self);
00753 
00754    return 0;
00755 }

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

Definition at line 866 of file chan_h323.c.

References ast_channel::_state, oh323_pvt::alreadygone, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_HOLD, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_RINGING, AST_CONTROL_UNHOLD, ast_log(), ast_moh_start(), ast_moh_stop(), ast_mutex_lock(), ast_mutex_unlock(), AST_SOFTHANGUP_DEV, ast_softhangup_nolock(), AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, oh323_pvt::cd, free, oh323_pvt::got_progress, oh323_pvt::lock, LOG_DEBUG, LOG_WARNING, oh323_update_info(), strdup, and ast_channel::tech_pvt.

00867 {
00868 
00869    struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
00870    char *token = (char *)NULL;
00871    int res = -1;
00872    int got_progress;
00873 
00874    ast_mutex_lock(&pvt->lock);
00875    token = (pvt->cd.call_token ? strdup(pvt->cd.call_token) : NULL);
00876    got_progress = pvt->got_progress;
00877    if (condition == AST_CONTROL_PROGRESS)
00878       pvt->got_progress = 1;
00879    else if ((condition == AST_CONTROL_BUSY) || (condition == AST_CONTROL_CONGESTION))
00880       pvt->alreadygone = 1;
00881    ast_mutex_unlock(&pvt->lock);
00882 
00883    if (h323debug)
00884       ast_log(LOG_DEBUG, "OH323: Indicating %d on %s\n", condition, token);
00885 
00886    switch(condition) {
00887    case AST_CONTROL_RINGING:
00888       if (c->_state == AST_STATE_RING || c->_state == AST_STATE_RINGING) {
00889          h323_send_alerting(token);
00890          res = (got_progress ? 0 : -1);   /* Do not simulate any audio tones if we got PROGRESS message */
00891       }
00892       break;
00893    case AST_CONTROL_PROGRESS:
00894       if (c->_state != AST_STATE_UP) {
00895          /* Do not send PROGRESS message more than once */
00896          if (!got_progress)
00897             h323_send_progress(token);
00898          res = 0;
00899       }
00900       break;
00901    case AST_CONTROL_BUSY:
00902       if (c->_state != AST_STATE_UP) {
00903          h323_answering_call(token, 1);
00904          ast_softhangup_nolock(c, AST_SOFTHANGUP_DEV);
00905          res = 0;
00906       }
00907       break;
00908    case AST_CONTROL_CONGESTION:
00909       if (c->_state != AST_STATE_UP) {
00910          h323_answering_call(token, 1);
00911          ast_softhangup_nolock(c, AST_SOFTHANGUP_DEV);
00912          res = 0;
00913       }
00914       break;
00915    case AST_CONTROL_HOLD:
00916       ast_moh_start(c, data, NULL);
00917       res = 0;
00918       break;
00919    case AST_CONTROL_UNHOLD:
00920       ast_moh_stop(c);
00921       res = 0;
00922       break;
00923    case AST_CONTROL_PROCEEDING:
00924    case -1:
00925       break;
00926    default:
00927       ast_log(LOG_WARNING, "OH323: Don't know how to indicate condition %d on %s\n", condition, token);
00928       break;
00929    }
00930 
00931    if (h323debug)
00932       ast_log(LOG_DEBUG, "OH323: Indicated %d on %s, res=%d\n", condition, token, res);
00933    if (token)
00934       free(token);
00935    oh323_update_info(c);
00936 
00937    return res;
00938 }

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

Definition at line 813 of file chan_h323.c.

References __oh323_update_info(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_null_frame, ast_rtcp_read(), ast_channel::fdno, oh323_pvt::lock, LOG_ERROR, oh323_rtp_read(), oh323_pvt::rtp, and ast_channel::tech_pvt.

00814 {
00815    struct ast_frame *fr;
00816    struct oh323_pvt *pvt = (struct oh323_pvt *)c->tech_pvt;
00817    ast_mutex_lock(&pvt->lock);
00818    __oh323_update_info(c, pvt);
00819    switch(c->fdno) {
00820    case 0:
00821       fr = oh323_rtp_read(pvt);
00822       break;
00823    case 1:
00824       if (pvt->rtp)
00825          fr = ast_rtcp_read(pvt->rtp);
00826       else
00827          fr = &ast_null_frame;
00828       break;
00829    default:
00830       ast_log(LOG_ERROR, "Unable to handle fd %d on channel %s\n", c->fdno, c->name);
00831       fr = &ast_null_frame;
00832       break;
00833    }
00834    ast_mutex_unlock(&pvt->lock);
00835    return fr;
00836 }

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

Definition at line 1668 of file chan_h323.c.

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

01669 {
01670    int oldformat;
01671    struct oh323_pvt *pvt;
01672    struct ast_channel *tmpc = NULL;
01673    char *dest = (char *)data;
01674    char *ext, *host;
01675    char *h323id = NULL;
01676    char tmp[256], tmp1[256];
01677 
01678    if (h323debug)
01679       ast_log(LOG_DEBUG, "type=%s, format=%d, data=%s.\n", type, format, (char *)data);
01680 
01681    pvt = oh323_alloc(0);
01682    if (!pvt) {
01683       ast_log(LOG_WARNING, "Unable to build pvt data for '%s'\n", (char *)data);
01684       return NULL;
01685    }
01686    oldformat = format;
01687    format &= ((AST_FORMAT_MAX_AUDIO << 1) - 1);
01688    if (!format) {
01689       ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format);
01690       oh323_destroy(pvt);
01691       if (cause)
01692          *cause = AST_CAUSE_INCOMPATIBLE_DESTINATION;
01693       return NULL;
01694    }
01695    ast_copy_string(tmp, dest, sizeof(tmp));
01696    host = strchr(tmp, '@');
01697    if (host) {
01698       *host = '\0';
01699       host++;
01700       ext = tmp;
01701    } else {
01702       ext = strrchr(tmp, '/');
01703       if (ext)
01704          *ext++ = '\0';
01705       host = tmp;
01706    }
01707    strtok_r(host, "/", &(h323id));
01708    if (!ast_strlen_zero(h323id)) {
01709       h323_set_id(h323id);
01710    }
01711    if (ext) {
01712       ast_copy_string(pvt->exten, ext, sizeof(pvt->exten));
01713    }
01714    if (h323debug)
01715       ast_log(LOG_DEBUG, "Extension: %s Host: %s\n", pvt->exten, host);
01716 
01717    if (gatekeeper_disable) {
01718       if (create_addr(pvt, host)) {
01719          oh323_destroy(pvt);
01720          if (cause)
01721             *cause = AST_CAUSE_DESTINATION_OUT_OF_ORDER;
01722          return NULL;
01723       }
01724    }
01725    else {
01726       memcpy(&pvt->options, &global_options, sizeof(pvt->options));
01727       pvt->jointcapability = pvt->options.capability;
01728       if (pvt->options.dtmfmode) {
01729          if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
01730             pvt->nonCodecCapability |= AST_RTP_DTMF;
01731          } else {
01732             pvt->nonCodecCapability &= ~AST_RTP_DTMF;
01733          }
01734       }
01735    }
01736 
01737    ast_mutex_lock(&caplock);
01738    /* Generate unique channel identifier */
01739    snprintf(tmp1, sizeof(tmp1)-1, "%s-%u", host, ++unique);
01740    tmp1[sizeof(tmp1)-1] = '\0';
01741    ast_mutex_unlock(&caplock);
01742 
01743    ast_mutex_lock(&pvt->lock);
01744    tmpc = __oh323_new(pvt, AST_STATE_DOWN, tmp1);
01745    ast_mutex_unlock(&pvt->lock);
01746    if (!tmpc) {
01747       oh323_destroy(pvt);
01748       if (cause)
01749          *cause = AST_CAUSE_NORMAL_TEMPORARY_FAILURE;
01750    }
01751    ast_update_use_count();
01752    restart_monitor();
01753    return tmpc;
01754 }

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

Definition at line 757 of file chan_h323.c.

References ast_channel_trylock, ast_channel_unlock, ast_dsp_process(), AST_FORMAT_ALAW, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, AST_FRAME_DTMF, AST_FRAME_VOICE, ast_getformatname(), ast_log(), ast_null_frame, ast_rtp_read(), ast_rtp_setnat(), ast_set_read_format(), ast_set_write_format(), f, ast_frame::frametype, LOG_DEBUG, LOG_DTMF, LOG_NOTICE, oh323_pvt::nativeformats, ast_channel::nativeformats, oh323_pvt::noInbandDtmf, oh323_pvt::options, oh323_pvt::owner, ast_channel::readformat, oh323_pvt::rtp, ast_frame::subclass, oh323_pvt::vad, and ast_channel::writeformat.

Referenced by oh323_read().

00758 {
00759    /* Retrieve audio/etc from channel. Assumes pvt->lock is already held. */
00760    struct ast_frame *f;
00761 
00762    /* Only apply it for the first packet, we just need the correct ip/port */
00763    if (pvt->options.nat) {
00764       ast_rtp_setnat(pvt->rtp, pvt->options.nat);
00765       pvt->options.nat = 0;
00766    }
00767 
00768    f = ast_rtp_read(pvt->rtp);
00769    /* Don't send RFC2833 if we're not supposed to */
00770    if (f && (f->frametype == AST_FRAME_DTMF) && !(pvt->options.dtmfmode & H323_DTMF_RFC2833)) {
00771       return &ast_null_frame;
00772    }
00773    if (pvt->owner) {
00774       /* We already hold the channel lock */
00775       if (f->frametype == AST_FRAME_VOICE) {
00776          if (f->subclass != pvt->owner->nativeformats) {
00777             /* Try to avoid deadlock */
00778             if (ast_channel_trylock(pvt->owner)) {
00779                ast_log(LOG_NOTICE, "Format changed but channel is locked. Ignoring frame...\n");
00780                return &ast_null_frame;
00781             }
00782             if (h323debug)
00783                ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
00784             pvt->owner->nativeformats = f->subclass;
00785             pvt->nativeformats = f->subclass;
00786             ast_set_read_format(pvt->owner, pvt->owner->readformat);
00787             ast_set_write_format(pvt->owner, pvt->owner->writeformat);
00788             ast_channel_unlock(pvt->owner);
00789          }
00790          /* Do in-band DTMF detection */
00791          if ((pvt->options.dtmfmode & H323_DTMF_INBAND) && pvt->vad) {
00792             if ((pvt->nativeformats & (AST_FORMAT_SLINEAR | AST_FORMAT_ALAW | AST_FORMAT_ULAW))) {
00793                if (!ast_channel_trylock(pvt->owner)) {
00794                   f = ast_dsp_process(pvt->owner, pvt->vad, f);
00795                   ast_channel_unlock(pvt->owner);
00796                }
00797                else
00798                   ast_log(LOG_NOTICE, "Unable to process inband DTMF while channel is locked\n");
00799             } else if (pvt->nativeformats && !pvt->noInbandDtmf) {
00800                ast_log(LOG_NOTICE, "Inband DTMF is not supported on codec %s. Use RFC2833\n", ast_getformatname(f->subclass));
00801                pvt->noInbandDtmf = 1;
00802             }
00803             if (f &&(f->frametype == AST_FRAME_DTMF)) {
00804                if (h323debug)
00805                   ast_log(LOG_DTMF, "Received in-band digit %c.\n", f->subclass);
00806             }
00807          }
00808       }
00809    }
00810    return f;
00811 }

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

Definition at line 3067 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.

03068 {
03069    /* XXX Deal with Video */
03070    struct oh323_pvt *pvt;
03071    struct sockaddr_in them;
03072    struct sockaddr_in us;
03073    char *mode;
03074 
03075    if (!rtp) {
03076       return 0;
03077    }
03078 
03079    mode = convertcap(chan->writeformat);
03080    pvt = (struct oh323_pvt *) chan->tech_pvt;
03081    if (!pvt) {
03082       ast_log(LOG_ERROR, "No Private Structure, this is bad\n");
03083       return -1;
03084    }
03085    ast_rtp_get_peer(rtp, &them);
03086    ast_rtp_get_us(rtp, &us);
03087 #if 0 /* Native bridge still isn't ready */
03088    h323_native_bridge(pvt->cd.call_token, ast_inet_ntoa(them.sin_addr), mode);
03089 #endif
03090    return 0;
03091 }

static int oh323_simulate_dtmf_end ( const void *  data  )  [static]

Definition at line 307 of file chan_h323.c.

References ast_channel_trylock, ast_channel_unlock, AST_FRAME_DTMF_END, ast_mutex_lock(), ast_mutex_unlock(), ast_queue_frame(), oh323_pvt::curDTMF, oh323_pvt::DTMFsched, ast_frame::frametype, oh323_pvt::lock, and oh323_pvt::owner.

Referenced by __oh323_update_info(), and receive_digit().

00308 {
00309    struct oh323_pvt *pvt = (struct oh323_pvt *)data;
00310 
00311    if (pvt) {
00312       ast_mutex_lock(&pvt->lock);
00313       /* Don't hold pvt lock while trying to lock the channel */
00314       while(pvt->owner && ast_channel_trylock(pvt->owner)) {
00315          ast_mutex_unlock(&pvt->lock);
00316          usleep(1);
00317          ast_mutex_lock(&pvt->lock);
00318       }
00319 
00320       if (pvt->owner) {
00321          struct ast_frame f = {
00322             .frametype = AST_FRAME_DTMF_END,
00323             .subclass = pvt->curDTMF,
00324             .samples = 0,
00325             .src = "SIMULATE_DTMF_END",
00326          };
00327          ast_queue_frame(pvt->owner, &f);
00328          ast_channel_unlock(pvt->owner);
00329       }
00330 
00331       pvt->DTMFsched = -1;
00332       ast_mutex_unlock(&pvt->lock);
00333    }
00334 
00335    return 0;
00336 }

static void oh323_update_info ( struct ast_channel c  )  [static]

Definition at line 405 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().

00406 {
00407    struct oh323_pvt *pvt = c->tech_pvt;
00408 
00409    if (pvt) {
00410       ast_mutex_lock(&pvt->lock);
00411       __oh323_update_info(c, pvt);
00412       ast_mutex_unlock(&pvt->lock);
00413    }
00414 }

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

Definition at line 838 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.

00839 {
00840    struct oh323_pvt *pvt = (struct oh323_pvt *) c->tech_pvt;
00841    int res = 0;
00842    if (frame->frametype != AST_FRAME_VOICE) {
00843       if (frame->frametype == AST_FRAME_IMAGE) {
00844          return 0;
00845       } else {
00846          ast_log(LOG_WARNING, "Can't send %d type frames with H323 write\n", frame->frametype);
00847          return 0;
00848       }
00849    } else {
00850       if (!(frame->subclass & c->nativeformats)) {
00851          ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
00852             frame->subclass, c->nativeformats, c->readformat, c->writeformat);
00853          return 0;
00854       }
00855    }
00856    if (pvt) {
00857       ast_mutex_lock(&pvt->lock);
00858       if (pvt->rtp && !pvt->recvonly)
00859          res = ast_rtp_write(pvt->rtp, frame);
00860       __oh323_update_info(c, pvt);
00861       ast_mutex_unlock(&pvt->lock);
00862    }
00863    return res;
00864 }

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

Definition at line 2026 of file chan_h323.c.

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

02027 {
02028    struct oh323_pvt *pvt;
02029 
02030    if (h323debug)
02031       ast_log(LOG_DEBUG, "Received ALERT/PROGRESS message for %s tones\n", (inband ? "inband" : "self-generated"));
02032 
02033    pvt = find_call_locked(call_reference, token);
02034    if (!pvt) {
02035       ast_log(LOG_ERROR, "Private structure not found in progress.\n");
02036       return -1;
02037    }
02038    if (!pvt->owner) {
02039       ast_mutex_unlock(&pvt->lock);
02040       ast_log(LOG_ERROR, "No Asterisk channel associated with private structure.\n");
02041       return -1;
02042    }
02043    update_state(pvt, -1, (inband ? AST_CONTROL_PROGRESS : AST_CONTROL_RINGING));
02044    ast_mutex_unlock(&pvt->lock);
02045 
02046    return 0;
02047 }

static void prune_peers ( void   )  [static]

Definition at line 2758 of file chan_h323.c.

References ASTOBJ_CONTAINER_PRUNE_MARKED, oh323_destroy_peer(), and peerl.

Referenced by reload_config(), set_config(), and unload_module().

02759 {
02760    /* Prune peers who still are supposed to be deleted */
02761    ASTOBJ_CONTAINER_PRUNE_MARKED(&peerl, oh323_destroy_peer);
02762 }

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

Definition at line 1226 of file chan_h323.c.

References ast_load_realtime(), ast_variables_destroy(), build_alias(), ast_variable::name, ast_variable::next, ast_variable::value, and var.

Referenced by find_alias().

01227 {
01228    struct ast_variable *var, *tmp;
01229    struct oh323_alias *a;
01230 
01231    var = ast_load_realtime("h323", "name", alias, NULL);
01232 
01233    if (!var)
01234       return NULL;
01235 
01236    for (tmp = var; tmp; tmp = tmp->next) {
01237       if (!strcasecmp(tmp->name, "type") &&
01238       !(!strcasecmp(tmp->value, "alias") || !strcasecmp(tmp->value, "h323"))) {
01239          ast_variables_destroy(var);
01240          return NULL;
01241       }
01242    }
01243 
01244    a = build_alias(alias, var, NULL, 1);
01245 
01246    ast_variables_destroy(var);
01247 
01248    return a;
01249 }

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

Definition at line 1500 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, ast_variable::value, and var.

Referenced by authenticate_reply(), find_peer(), and iax2_getpeername().

01501 {
01502    struct oh323_peer *peer;
01503    struct ast_variable *var;
01504    struct ast_variable *tmp;
01505    const char *addr;
01506 
01507    /* First check on peer name */
01508    if (peername)
01509       var = ast_load_realtime("h323", "name", peername, addr = NULL);
01510    else if (sin) /* Then check on IP address for dynamic peers */
01511       var = ast_load_realtime("h323", "host", addr = ast_inet_ntoa(sin->sin_addr), NULL);
01512    else
01513       return NULL;
01514 
01515    if (!var)
01516       return NULL;
01517 
01518    for (tmp = var; tmp; tmp = tmp->next) {
01519       /* If this is type=user, then skip this object. */
01520       if (!strcasecmp(tmp->name, "type") &&
01521             !(!strcasecmp(tmp->value, "peer") || !strcasecmp(tmp->value, "friend"))) {
01522          ast_variables_destroy(var);
01523          return NULL;
01524       } else if (!peername && !strcasecmp(tmp->name, "name")) {
01525          peername = tmp->value;
01526       }
01527    }
01528 
01529    if (!peername) {  /* Did not find peer in realtime */
01530       ast_log(LOG_WARNING, "Cannot determine peer name for IP address %s\n", addr);
01531       ast_variables_destroy(var);
01532       return NULL;
01533    }
01534 
01535    /* Peer found in realtime, now build it in memory */
01536    peer = build_peer(peername, var, NULL, 1);
01537 
01538    ast_variables_destroy(var);
01539 
01540    return peer;
01541 }

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

Definition at line 1402 of file chan_h323.c.

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

Referenced by check_access(), and find_user().

01403 {
01404    struct ast_variable *var, *tmp;
01405    struct oh323_user *user;
01406    char *username;
01407 
01408    if (userbyalias)
01409       var = ast_load_realtime("h323", "name", username = cd->call_source_aliases, NULL);
01410    else {
01411       username = (char *)NULL;
01412       var = ast_load_realtime("h323", "host", cd->sourceIp, NULL);
01413    }
01414 
01415    if (!var)
01416       return NULL;
01417 
01418    for (tmp = var; tmp; tmp = tmp->next) {
01419       if (!strcasecmp(tmp->name, "type") &&
01420       !(!strcasecmp(tmp->value, "user") || !strcasecmp(tmp->value, "friend"))) {
01421          ast_variables_destroy(var);
01422          return NULL;
01423       } else if (!username && !strcasecmp(tmp->name, "name"))
01424          username = tmp->value;
01425    }
01426 
01427    if (!username) {
01428       ast_log(LOG_WARNING, "Cannot determine user name for IP address %s\n", cd->sourceIp);
01429       ast_variables_destroy(var);
01430       return NULL;
01431    }
01432 
01433    user = build_user(username, var, NULL, 1);
01434 
01435    ast_variables_destroy(var);
01436 
01437    return user;
01438 }

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 1773 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().

01774 {
01775    struct oh323_pvt *pvt;
01776    int res;
01777 
01778    pvt = find_call_locked(call_reference, token);
01779    if (!pvt) {
01780       ast_log(LOG_ERROR, "Received digit '%c' (%u ms) for call %s without private structure\n", digit, duration, token);
01781       return -1;
01782    }
01783    if (h323debug)
01784       ast_log(LOG_DTMF, "Received %s digit '%c' (%u ms) for call %s\n", (digit == ' ' ? "update for" : "new"), (digit == ' ' ? pvt->curDTMF : digit), duration, token);
01785 
01786    if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
01787       if (digit == '!')
01788          res = ast_queue_control(pvt->owner, AST_CONTROL_FLASH);
01789       else {
01790          struct ast_frame f = {
01791             .frametype = AST_FRAME_DTMF_END,
01792             .subclass = digit,
01793             .samples = duration * 8,
01794             .len = duration,
01795             .src = "SEND_DIGIT",
01796          };
01797          if (digit == ' ') {     /* signalUpdate message */
01798             f.subclass = pvt->curDTMF;
01799             if (pvt->DTMFsched >= 0) {
01800                ast_sched_del(sched, pvt->DTMFsched);
01801                pvt->DTMFsched = -1;
01802             }
01803          } else {          /* Regular input or signal message */
01804             if (pvt->DTMFsched >= 0) {
01805                /* We still don't send DTMF END from previous event, send it now */
01806                ast_sched_del(sched, pvt->DTMFsched);
01807                pvt->DTMFsched = -1;
01808                f.subclass = pvt->curDTMF;
01809                f.samples = f.len = 0;
01810                ast_queue_frame(pvt->owner, &f);
01811                /* Restore values */
01812                f.subclass = digit;
01813                f.samples = duration * 8;
01814                f.len = duration;
01815             }
01816             if (duration) {      /* This is a signal, signalUpdate follows */
01817                f.frametype = AST_FRAME_DTMF_BEGIN;
01818                pvt->DTMFsched = ast_sched_add(sched, duration, oh323_simulate_dtmf_end, pvt);
01819                if (h323debug)
01820                   ast_log(LOG_DTMF, "Scheduled DTMF END simulation for %d ms, id=%d\n", duration, pvt->DTMFsched);
01821             }
01822             pvt->curDTMF = digit;
01823          }
01824          res = ast_queue_frame(pvt->owner, &f);
01825       }
01826       ast_channel_unlock(pvt->owner);
01827    } else {
01828       if (digit == '!')
01829          pvt->newcontrol = AST_CONTROL_FLASH;
01830       else {
01831          pvt->newduration = duration;
01832          pvt->newdigit = digit;
01833       }
01834       res = 0;
01835    }
01836    ast_mutex_unlock(&pvt->lock);
01837    return res;
01838 }

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

Definition at line 268 of file chan_h323.c.

Referenced by __oh323_new().

00269 {
00270    switch (redirectingreason) {
00271    case 0:
00272       return "UNKNOWN";
00273    case 1:
00274       return "BUSY";
00275    case 2:
00276       return "NO_REPLY";
00277    case 0xF:
00278       return "UNCONDITIONAL";
00279    default:
00280       return "NOREDIRECT";
00281    }
00282 }

static int reload ( void   )  [static]

Definition at line 3002 of file chan_h323.c.

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

03003 {
03004    if (!sched || !io) {
03005       ast_log(LOG_NOTICE, "Unload and load chan_h323.so again in order to receive configuration changes.\n");
03006       return 0;
03007    }
03008    return h323_reload(0, 0, NULL);
03009 }

static int reload_config ( int  is_reload  )  [static]

Definition at line 2764 of file chan_h323.c.

References aliasl, ast_category_browse(), ast_config_destroy(), ast_config_load(), ast_gethostbyname(), ast_jb_read_conf(), ast_log(), ast_true(), ast_variable_browse(), ast_variable_retrieve(), ast_verbose(), 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(), delete_aliases(), delete_users(), format, gen, GLOBAL_CAPABILITY, global_jbconf, hp, IPTOS_MINCOST, 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, ast_variable::value, and VERBOSE_PREFIX_2.

Referenced by h323_do_reload(), iax2_prune_realtime(), iax2_reload(), load_module(), mgcp_do_reload(), misdn_reload(), reload(), and sip_do_reload().

02765 {
02766    int format;
02767    struct ast_config *cfg, *ucfg;
02768    struct ast_variable *v;
02769    struct oh323_peer *peer = NULL;
02770    struct oh323_user *user = NULL;
02771    struct oh323_alias *alias = NULL;
02772    struct ast_hostent ahp; struct hostent *hp;
02773    char *cat;
02774    const char *utype;
02775    int is_user, is_peer, is_alias;
02776    char _gatekeeper[100];
02777    int gk_discover, gk_disable, gk_changed;
02778 
02779    cfg = ast_config_load(config);
02780 
02781    /* We *must* have a config file otherwise stop immediately */
02782    if (!cfg) {
02783       ast_log(LOG_NOTICE, "Unable to load config %s, H.323 disabled\n", config);
02784       return 1;
02785    }
02786 
02787    if (is_reload) {
02788       delete_users();
02789       delete_aliases();
02790       prune_peers();
02791    }
02792 
02793    /* fire up the H.323 Endpoint */
02794    if (!h323_end_point_exist()) {
02795       h323_end_point_create();
02796    }
02797    ast_copy_string(_gatekeeper, gatekeeper, sizeof(_gatekeeper));
02798    gk_discover = gatekeeper_discover;
02799    gk_disable = gatekeeper_disable;
02800    memset(&bindaddr, 0, sizeof(bindaddr));
02801    memset(&global_options, 0, sizeof(global_options));
02802    global_options.fastStart = 1;
02803    global_options.h245Tunneling = 1;
02804    global_options.dtmfcodec = 101;
02805    global_options.dtmfmode = H323_DTMF_RFC2833;
02806    global_options.capability = GLOBAL_CAPABILITY;
02807    global_options.bridge = 1;    /* Do native bridging by default */
02808    strcpy(default_context, "default");
02809    h323_signalling_port = 1720;
02810    gatekeeper_disable = 1;
02811    gatekeeper_discover = 0;
02812    gkroute = 0;
02813    userbyalias = 1;
02814    acceptAnonymous = 1;
02815    tos = 0;
02816 
02817    /* Copy the default jb config over global_jbconf */
02818    memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
02819 
02820    /* Load configuration from users.conf */
02821    ucfg = ast_config_load("users.conf");
02822    if (ucfg) {
02823       struct ast_variable *gen;
02824       int genhas_h323;
02825       const char *has_h323;
02826 
02827       genhas_h323 = ast_true(ast_variable_retrieve(ucfg, "general", "hash323"));
02828       gen = ast_variable_browse(ucfg, "general");
02829       for (cat = ast_category_browse(ucfg, NULL); cat; cat = ast_category_browse(ucfg, cat)) {
02830          if (strcasecmp(cat, "general")) {
02831             has_h323 = ast_variable_retrieve(ucfg, cat, "hash323");
02832             if (ast_true(has_h323) || (!has_h323 && genhas_h323)) {
02833                user = build_user(cat, gen, ast_variable_browse(ucfg, cat), 0);
02834                if (user) {
02835                   ASTOBJ_CONTAINER_LINK(&userl, user);
02836                   ASTOBJ_UNREF(user, oh323_destroy_user);
02837                }
02838                peer = build_peer(cat, gen, ast_variable_browse(ucfg, cat), 0);
02839                if (peer) {
02840                   ASTOBJ_CONTAINER_LINK(&peerl, peer);
02841                   ASTOBJ_UNREF(peer, oh323_destroy_peer);
02842                }
02843             }
02844          }
02845       }
02846       ast_config_destroy(ucfg);
02847    }
02848 
02849    for (v = ast_variable_browse(cfg, "general"); v; v = v->next) {
02850       /* handle jb conf */
02851       if (!ast_jb_read_conf(&global_jbconf, v->name, v->value))
02852          continue;
02853       /* Create the interface list */
02854       if (!strcasecmp(v->name, "port")) {
02855          h323_signalling_port = (int)strtol(v->value, NULL, 10);
02856       } else if (!strcasecmp(v->name, "bindaddr")) {
02857          if (!(hp = ast_gethostbyname(v->value, &ahp))) {
02858             ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
02859          } else {
02860             memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
02861          }
02862       } else if (!strcasecmp(v->name, "tos")) {
02863          if (sscanf(v->value, "%d", &format)) {
02864             tos = format & 0xff;
02865          } else if (!strcasecmp(v->value, "lowdelay")) {
02866             tos = IPTOS_LOWDELAY;
02867          } else if (!strcasecmp(v->value, "throughput")) {
02868             tos = IPTOS_THROUGHPUT;
02869          } else if (!strcasecmp(v->value, "reliability")) {
02870             tos = IPTOS_RELIABILITY;
02871          } else if (!strcasecmp(v->value, "mincost")) {
02872             tos = IPTOS_MINCOST;
02873          } else if (!strcasecmp(v->value, "none")) {
02874             tos = 0;
02875          } else {
02876             ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno);
02877          }
02878       } else if (!strcasecmp(v->name, "gatekeeper")) {
02879          if (!strcasecmp(v->value, "DISABLE")) {
02880             gatekeeper_disable = 1;
02881          } else if (!strcasecmp(v->value, "DISCOVER")) {
02882             gatekeeper_disable = 0;
02883             gatekeeper_discover = 1;
02884          } else {
02885             gatekeeper_disable = 0;
02886             ast_copy_string(gatekeeper, v->value, sizeof(gatekeeper));
02887          }
02888       } else if (!strcasecmp(v->name, "secret")) {
02889          ast_copy_string(secret, v->value, sizeof(secret));
02890       } else if (!strcasecmp(v->name, "AllowGKRouted")) {
02891          gkroute = ast_true(v->value);
02892       } else if (!strcasecmp(v->name, "context")) {
02893          ast_copy_string(default_context, v->value, sizeof(default_context));
02894          ast_verbose(VERBOSE_PREFIX_2 "Setting default context to %s\n", default_context);
02895       } else if (!strcasecmp(v->name, "UserByAlias")) {
02896          userbyalias = ast_true(v->value);
02897       } else if (!strcasecmp(v->name, "AcceptAnonymous")) {
02898          acceptAnonymous = ast_true(v->value);
02899       } else if (!update_common_options(v, &global_options)) {
02900          /* dummy */
02901       }
02902    }
02903 
02904    for (cat = ast_category_browse(cfg, NULL); cat; cat = ast_category_browse(cfg, cat)) {
02905       if (strcasecmp(cat, "general")) {
02906          utype = ast_variable_retrieve(cfg, cat, "type");
02907          if (utype) {
02908             is_user = is_peer = is_alias = 0;
02909             if (!strcasecmp(utype, "user"))
02910                is_user = 1;
02911             else if (!strcasecmp(utype, "peer"))
02912                is_peer = 1;
02913             else if (!strcasecmp(utype, "friend"))
02914                is_user = is_peer = 1;
02915             else if (!strcasecmp(utype, "h323") || !strcasecmp(utype, "alias"))
02916                is_alias = 1;
02917             else {
02918                ast_log(LOG_WARNING, "Unknown type '%s' for '%s' in %s\n", utype, cat, config);
02919                continue;
02920             }
02921             if (is_user) {
02922                user = build_user(cat, ast_variable_browse(cfg, cat), NULL, 0);
02923                if (user) {
02924                   ASTOBJ_CONTAINER_LINK(&userl, user);
02925                   ASTOBJ_UNREF(user, oh323_destroy_user);
02926                }
02927             }
02928             if (is_peer) {
02929                peer = build_peer(cat, ast_variable_browse(cfg, cat), NULL, 0);
02930                if (peer) {
02931                   ASTOBJ_CONTAINER_LINK(&peerl, peer);
02932                   ASTOBJ_UNREF(peer, oh323_destroy_peer);
02933                }
02934             }
02935             if (is_alias) {
02936                alias = build_alias(cat, ast_variable_browse(cfg, cat), NULL, 0);
02937                if (alias) {
02938                   ASTOBJ_CONTAINER_LINK(&aliasl, alias);
02939                   ASTOBJ_UNREF(alias, oh323_destroy_alias);
02940                }
02941             }
02942          } else {
02943             ast_log(LOG_WARNING, "Section '%s' lacks type\n", cat);
02944          }
02945       }
02946    }
02947    ast_config_destroy(cfg);
02948 
02949    /* Register our H.323 aliases if any*/
02950    ASTOBJ_CONTAINER_WRLOCK(&aliasl);
02951    ASTOBJ_CONTAINER_TRAVERSE(&aliasl, 1, do {
02952       ASTOBJ_RDLOCK(iterator);
02953       if (h323_set_alias(iterator)) {
02954          ast_log(LOG_ERROR, "Alias %s rejected by endpoint\n", alias->name);
02955          ASTOBJ_UNLOCK(iterator);
02956          continue;
02957       }
02958       ASTOBJ_UNLOCK(iterator);
02959    } while (0) );
02960    ASTOBJ_CONTAINER_UNLOCK(&aliasl);
02961 
02962    /* Don't touch GK if nothing changed because URQ will drop all existing calls */
02963    gk_changed = 0;
02964    if (gatekeeper_disable != gk_disable)
02965       gk_changed = is_reload;
02966    else if(!gatekeeper_disable && (gatekeeper_discover != gk_discover))
02967       gk_changed = is_reload;
02968    else if(!gatekeeper_disable && (strncmp(_gatekeeper, gatekeeper, sizeof(_gatekeeper)) != 0))
02969       gk_changed = is_reload;
02970    if (gk_changed) {
02971       if(!gk_disable)
02972          h323_gk_urq();
02973       if (!gatekeeper_disable) {
02974          if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) {
02975             ast_log(LOG_ERROR, "Gatekeeper registration failed.\n");
02976             gatekeeper_disable = 1;
02977          }
02978       }
02979    }
02980    return 0;
02981 }

static int restart_monitor ( void   )  [static]

Definition at line 2512 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, and LOG_WARNING.

Referenced by h323_reload(), load_module(), mgcp_reload(), mgcp_request(), oh323_request(), phone_hangup(), phone_request(), setup_zap(), sip_reload(), sip_request_call(), skinny_request(), zt_hangup(), and zt_request().

02513 {
02514    pthread_attr_t attr;
02515    /* If we're supposed to be stopped -- stay stopped */
02516    if (ast_mutex_lock(&monlock)) {
02517       ast_log(LOG_WARNING, "Unable to lock monitor\n");
02518       return -1;
02519    }
02520    if (monitor_thread == AST_PTHREADT_STOP) {
02521       ast_mutex_unlock(&monlock);
02522       return 0;
02523    }
02524    if (monitor_thread == pthread_self()) {
02525       ast_mutex_unlock(&monlock);
02526       ast_log(LOG_WARNING, "Cannot kill myself\n");
02527       return -1;
02528    }
02529    if (monitor_thread && (monitor_thread != AST_PTHREADT_NULL)) {
02530       /* Wake up the thread */
02531       pthread_kill(monitor_thread, SIGURG);
02532    } else {
02533       pthread_attr_init(&attr);
02534       pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
02535       /* Start a new monitor */
02536       if (ast_pthread_create_background(&monitor_thread, &attr, do_monitor, NULL) < 0) {
02537          monitor_thread = AST_PTHREADT_NULL;
02538          ast_mutex_unlock(&monlock);
02539          ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
02540          pthread_attr_destroy(&attr);
02541          return -1;
02542       }
02543       pthread_attr_destroy(&attr);
02544    }
02545    ast_mutex_unlock(&monlock);
02546    return 0;
02547 }

static void set_dtmf_payload ( unsigned  call_reference,
const char *  token,
int  payload 
) [static]

Definition at line 2371 of file chan_h323.c.

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

Referenced by load_module().

02372 {
02373    struct oh323_pvt *pvt;
02374 
02375    if (h323debug)
02376       ast_log(LOG_DEBUG, "Setting DTMF payload to %d on %s\n", payload, token);
02377 
02378    pvt = find_call_locked(call_reference, token);
02379    if (!pvt) {
02380       return;
02381    }
02382    if (pvt->rtp) {
02383       ast_rtp_set_rtpmap_type(pvt->rtp, payload, "audio", "telephone-event", 0);
02384    }
02385    pvt->dtmf_pt = payload;
02386    ast_mutex_unlock(&pvt->lock);
02387    if (h323debug)
02388       ast_log(LOG_DEBUG, "DTMF payload on %s set to %d\n", token, payload);
02389 }

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

Definition at line 2419 of file chan_h323.c.

References ast_log(), ast_mutex_unlock(), capability, dtmfmode, find_call_locked(), oh323_pvt::jointcapability, oh323_pvt::lock, LOG_DEBUG, oh323_pvt::options, and oh323_pvt::pref_codec.

Referenced by load_module().

02420 {
02421    struct oh323_pvt *pvt;
02422    int capability, dtmfmode, pref_codec;
02423    struct ast_codec_pref prefs;
02424 
02425    if (h323debug)
02426       ast_log(LOG_DEBUG, "Setting capabilities for connection %s\n", token);
02427 
02428    pvt = find_call_locked(call_reference, token);
02429    if (!pvt)
02430       return;
02431    capability = (pvt->jointcapability) ? pvt->jointcapability : pvt->options.capability;
02432    dtmfmode = pvt->options.dtmfmode;
02433    prefs = pvt->options.prefs;
02434    pref_codec = pvt->pref_codec;
02435    ast_mutex_unlock(&pvt->lock);
02436    h323_set_capabilities(token, capability, dtmfmode, &prefs, pref_codec);
02437 
02438    if (h323debug)
02439       ast_log(LOG_DEBUG, "Capabilities for connection %s is set\n", token);
02440 }

static void set_peer_capabilities ( unsigned  call_reference,
const char *  token,
int  capabilities,
struct ast_codec_pref prefs 
) [static]

Definition at line 2391 of file chan_h323.c.

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

Referenced by load_module().

02392 {
02393    struct oh323_pvt *pvt;
02394 
02395    if (h323debug)
02396       ast_log(LOG_DEBUG, "Got remote capabilities from connection %s\n", token);
02397 
02398    pvt = find_call_locked(call_reference, token);
02399    if (!pvt)
02400       return;
02401    pvt->peercapability = capabilities;
02402    pvt->jointcapability = pvt->options.capability & capabilities;
02403    if (prefs) {
02404       memcpy(&pvt->peer_prefs, prefs, sizeof(pvt->peer_prefs));
02405       if (h323debug) {
02406          int i;
02407          for (i = 0; i < 32; ++i) {
02408             if (!prefs->order[i])
02409                break;
02410             ast_log(LOG_DEBUG, "prefs[%d]=%s:%d\n", i, (prefs->order[i] ? ast_getformatname(1 << (prefs->order[i]-1)) : "<none>"), prefs->framing[i]);
02411          }
02412       }
02413       if (pvt->rtp)
02414          ast_rtp_codec_setpref(pvt->rtp, &pvt->peer_prefs);
02415    }
02416    ast_mutex_unlock(&pvt->lock);
02417 }

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 2054 of file chan_h323.c.

References oh323_pvt::accountcode, oh323_pvt::amaflags, ast_inet_ntoa(), ast_log(), ast_strlen_zero(), ast_verbose(), ASTOBJ_UNREF, oh323_pvt::cd, cleanup_call_details(), oh323_pvt::context, oh323_pvt::exten, find_alias(), find_user(), oh323_pvt::jointcapability, LOG_DEBUG, LOG_ERROR, LOG_NOTICE, oh323_alloc(), oh323_destroy(), oh323_destroy_user(), oh323_pvt::options, and VERBOSE_PREFIX_3.

Referenced by load_module().

02055 {
02056    struct oh323_pvt *pvt;
02057    struct oh323_user *user = NULL;
02058    struct oh323_alias *alias = NULL;
02059 
02060    if (h323debug)
02061       ast_log(LOG_DEBUG, "Setting up incoming call for %s\n", cd->call_token);
02062 
02063    /* allocate the call*/
02064    pvt = oh323_alloc(cd->call_reference);
02065 
02066    if (!pvt) {
02067       ast_log(LOG_ERROR, "Unable to allocate private structure, this is bad.\n");
02068       cleanup_call_details(cd);
02069       return NULL;
02070    }
02071 
02072    /* Populate the call details in the private structure */
02073    memcpy(&pvt->cd, cd, sizeof(pvt->cd));
02074    memcpy(&pvt->options, &global_options, sizeof(pvt->options));
02075    pvt->jointcapability = pvt->options.capability;
02076 
02077    if (h323debug) {
02078       ast_verbose(VERBOSE_PREFIX_3 "Setting up Call\n");
02079       ast_verbose(VERBOSE_PREFIX_3 " \tCall token:  [%s]\n", pvt->cd.call_token);
02080       ast_verbose(VERBOSE_PREFIX_3 " \tCalling party name:  [%s]\n", pvt->cd.call_source_name);
02081       ast_verbose(VERBOSE_PREFIX_3 " \tCalling party number:  [%s]\n", pvt->cd.call_source_e164);
02082       ast_verbose(VERBOSE_PREFIX_3 " \tCalled party name:  [%s]\n", pvt->cd.call_dest_alias);
02083       ast_verbose(VERBOSE_PREFIX_3 " \tCalled party number:  [%s]\n", pvt->cd.call_dest_e164);
02084       if (pvt->cd.redirect_reason >= 0)
02085          ast_verbose(VERBOSE_PREFIX_3 " \tRedirecting party number:  [%s] (reason %d)\n", pvt->cd.redirect_number, pvt->cd.redirect_reason);
02086       ast_verbose(VERBOSE_PREFIX_3 " \tCalling party IP:  [%s]\n", pvt->cd.sourceIp);
02087    }
02088 
02089    /* Decide if we are allowing Gatekeeper routed calls*/
02090    if ((!strcasecmp(cd->sourceIp, gatekeeper)) && (gkroute == -1) && !gatekeeper_disable) {
02091       if (!ast_strlen_zero(cd->call_dest_e164)) {
02092          ast_copy_string(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten));
02093          ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
02094       } else {
02095          alias = find_alias(cd->call_dest_alias, 1);
02096          if (!alias) {
02097             ast_log(LOG_ERROR, "Call for %s rejected, alias not found\n", cd->call_dest_alias);
02098             oh323_destroy(pvt);
02099             return NULL;
02100          }
02101          ast_copy_string(pvt->exten, alias->name, sizeof(pvt->exten));
02102          ast_copy_string(pvt->context, alias->context, sizeof(pvt->context));
02103       }
02104    } else {
02105       /* Either this call is not from the Gatekeeper
02106          or we are not allowing gk routed calls */
02107       user = find_user(cd, 1);
02108       if (!user) {
02109          if (!acceptAnonymous) {
02110             ast_log(LOG_NOTICE, "Anonymous call from '%s@%s' rejected\n", pvt->cd.call_source_aliases, pvt->cd.sourceIp);
02111             oh323_destroy(pvt);
02112             return NULL;
02113          }
02114          if (ast_strlen_zero(default_context)) {
02115             ast_log(LOG_ERROR, "Call from '%s@%s' rejected due to no default context\n", pvt->cd.call_source_aliases, pvt->cd.sourceIp);
02116             oh323_destroy(pvt);
02117             return NULL;
02118          }
02119          ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
02120          if (!ast_strlen_zero(pvt->cd.call_dest_e164)) {
02121             ast_copy_string(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten));
02122          } else {
02123             ast_copy_string(pvt->exten, cd->call_dest_alias, sizeof(pvt->exten));
02124          }
02125          if (h323debug)
02126             ast_log(LOG_DEBUG, "Sending %s@%s to context [%s] extension %s\n", cd->call_source_aliases, cd->sourceIp, pvt->context, pvt->exten);
02127       } else {
02128          if (user->host) {
02129             if (strcasecmp(cd->sourceIp, ast_inet_ntoa(user->addr.sin_addr))) {
02130                if (ast_strlen_zero(user->context)) {
02131                   if (ast_strlen_zero(default_context)) {
02132                      ast_log(LOG_ERROR, "Call from '%s' rejected due to non-matching IP address (%s) and no default context\n", user->name, cd->sourceIp);
02133                      oh323_destroy(pvt);
02134                      ASTOBJ_UNREF(user, oh323_destroy_user);
02135                      return NULL;
02136                   }
02137                   ast_copy_string(pvt->context, default_context, sizeof(pvt->context));
02138                } else {
02139                   ast_copy_string(pvt->context, user->context, sizeof(pvt->context));
02140                }
02141                pvt->exten[0] = 'i';
02142                pvt->exten[1] = '\0';
02143                ast_log(LOG_ERROR, "Call from '%s' rejected due to non-matching IP address (%s)s\n", user->name, cd->sourceIp);
02144                oh323_destroy(pvt);
02145                ASTOBJ_UNREF(user, oh323_destroy_user);
02146                return NULL;   /* XXX: Hmmm... Why to setup context if we drop connection immediately??? */
02147             }
02148          }
02149          ast_copy_string(pvt->context, user->context, sizeof(pvt->context));
02150          memcpy(&pvt->options, &user->options, sizeof(pvt->options));
02151          pvt->jointcapability = pvt->options.capability;
02152          if (!ast_strlen_zero(pvt->cd.call_dest_e164)) {
02153             ast_copy_string(pvt->exten, cd->call_dest_e164, sizeof(pvt->exten));
02154          } else {
02155             ast_copy_string(pvt->exten, cd->call_dest_alias, sizeof(pvt->exten));
02156          }
02157          if (!ast_strlen_zero(user->accountcode)) {
02158             ast_copy_string(pvt->accountcode, user->accountcode, sizeof(pvt->accountcode));
02159          }
02160          if (user->amaflags) {
02161             pvt->amaflags = user->amaflags;
02162          }
02163          ASTOBJ_UNREF(user, oh323_destroy_user);
02164       }
02165    }
02166    return &pvt->options;
02167 }

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 2253 of file chan_h323.c.

References cleanup_call_details().

Referenced by load_module().

02254 {
02255    /* Use argument here or free it immediately */
02256    cleanup_call_details(cd);
02257 
02258    return 1;
02259 }

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 1894 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_log(), ast_mutex_unlock(), ast_queue_control(), ast_rtp_lookup_pt(), ast_rtp_set_peer(), ast_rtp_stop(), ast_set_read_format(), ast_set_write_format(), rtpPayloadType::code, find_call_locked(), oh323_pvt::lock, LOG_DEBUG, 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().

01895 {
01896    struct oh323_pvt *pvt;
01897    struct sockaddr_in them;
01898    struct rtpPayloadType rtptype;
01899    int nativeformats_changed;
01900    enum { NEED_NONE, NEED_HOLD, NEED_UNHOLD } rtp_change = NEED_NONE;
01901 
01902    if (h323debug)
01903       ast_log(LOG_DEBUG, "Setting up RTP connection for %s\n", token);
01904 
01905    /* Find the call or allocate a private structure if call not found */
01906    pvt = find_call_locked(call_reference, token);
01907    if (!pvt) {
01908       ast_log(LOG_ERROR, "Something is wrong: rtp\n");
01909       return;
01910    }
01911    if (pvt->alreadygone) {
01912       ast_mutex_unlock(&pvt->lock);
01913       return;
01914    }
01915 
01916    if (!pvt->rtp)
01917       __oh323_rtp_create(pvt);
01918 
01919    them.sin_family = AF_INET;
01920    /* only works for IPv4 */
01921    them.sin_addr.s_addr = inet_addr(remoteIp);
01922    them.sin_port = htons(remotePort);
01923 
01924    if (them.sin_addr.s_addr) {
01925       ast_rtp_set_peer(pvt->rtp, &them);
01926       if (pvt->recvonly) {
01927          pvt->recvonly = 0;
01928          rtp_change = NEED_UNHOLD;
01929       }
01930    } else {
01931       ast_rtp_stop(pvt->rtp);
01932       if (!pvt->recvonly) {
01933          pvt->recvonly = 1;
01934          rtp_change = NEED_HOLD;
01935       }
01936    }
01937 
01938    /* Change native format to reflect information taken from OLC/OLCAck */
01939    nativeformats_changed = 0;
01940    if (pt != 128 && pvt->rtp) {  /* Payload type is invalid, so try to use previously decided */
01941       rtptype = ast_rtp_lookup_pt(pvt->rtp, pt);
01942       if (h323debug)
01943          ast_log(LOG_DEBUG, "Native format is set to %d from %d by RTP payload type %d\n", rtptype.code, pvt->nativeformats, pt);
01944       if (pvt->nativeformats != rtptype.code) {
01945          pvt->nativeformats = rtptype.code;
01946          nativeformats_changed = 1;
01947       }
01948    } else if (h323debug)
01949       ast_log(LOG_NOTICE, "Payload type is unknown, formats isn't changed\n");
01950 
01951    /* Don't try to lock the channel if nothing changed */
01952    if (nativeformats_changed || pvt->options.progress_audio || (rtp_change != NEED_NONE)) {
01953       if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
01954          /* Re-build translation path only if native format(s) has been changed */
01955          if (pvt->owner->nativeformats != pvt->nativeformats) {
01956             if (h323debug)
01957                ast_log(LOG_DEBUG, "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);
01958             pvt->owner->nativeformats = pvt->nativeformats;
01959             ast_set_read_format(pvt->owner, pvt->owner->readformat);
01960             ast_set_write_format(pvt->owner, pvt->owner->writeformat);
01961          }
01962          if (pvt->options.progress_audio)
01963             ast_queue_control(pvt->owner, AST_CONTROL_PROGRESS);
01964          switch (rtp_change) {
01965          case NEED_HOLD:
01966             ast_queue_control(pvt->owner, AST_CONTROL_HOLD);
01967             break;
01968          case NEED_UNHOLD:
01969             ast_queue_control(pvt->owner, AST_CONTROL_UNHOLD);
01970             break;
01971          default:
01972             break;
01973          }
01974          ast_channel_unlock(pvt->owner);
01975       }
01976       else {
01977          if (pvt->options.progress_audio)
01978             pvt->newcontrol = AST_CONTROL_PROGRESS;
01979          else if (rtp_change == NEED_HOLD)
01980             pvt->newcontrol = AST_CONTROL_HOLD;
01981          else if (rtp_change == NEED_UNHOLD)
01982             pvt->newcontrol = AST_CONTROL_UNHOLD;
01983          if (h323debug)
01984             ast_log(LOG_DEBUG, "RTP connection preparation for %s is pending...\n", token);
01985       }
01986    }
01987    ast_mutex_unlock(&pvt->lock);
01988 
01989    if (h323debug)
01990       ast_log(LOG_DEBUG, "RTP connection prepared for %s\n", token);
01991 
01992    return;
01993 }

static int unload_module ( void   )  [static]

Definition at line 3202 of file chan_h323.c.

References aliasl, ast_channel_unregister(), ast_cli_unregister(), ast_cli_unregister_multiple(), 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, free, iflist, io_context_destroy(), oh323_pvt::lock, LOG_WARNING, oh323_pvt::next, oh323_destroy_alias(), oh323_destroy_peer(), oh323_destroy_user(), oh323_pvt::owner, peerl, sched_context_destroy(), and userl.

03203 {
03204    struct oh323_pvt *p, *pl;
03205 
03206    /* unregister commands */
03207    ast_cli_unregister_multiple(cli_h323, sizeof(cli_h323) / sizeof(struct ast_cli_entry));
03208    ast_cli_unregister(&cli_h323_reload);
03209 
03210    ast_channel_unregister(&oh323_tech);
03211    ast_rtp_proto_unregister(&oh323_rtp);
03212 
03213    if (!ast_mutex_lock(&iflock)) {
03214       /* hangup all interfaces if they have an owner */
03215       p = iflist;
03216       while(p) {
03217          if (p->owner) {
03218             ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
03219          }
03220          p = p->next;
03221       }
03222       iflist = NULL;
03223       ast_mutex_unlock(&iflock);
03224    } else {
03225       ast_log(LOG_WARNING, "Unable to lock the interface list\n");
03226       return -1;
03227    }
03228    if (!ast_mutex_lock(&monlock)) {
03229       if ((monitor_thread != AST_PTHREADT_STOP) && (monitor_thread != AST_PTHREADT_NULL)) {
03230          /* this causes a seg, anyone know why? */
03231          if (monitor_thread != pthread_self())
03232             pthread_cancel(monitor_thread);
03233          pthread_kill(monitor_thread, SIGURG);
03234          pthread_join(monitor_thread, NULL);
03235       }
03236       monitor_thread = AST_PTHREADT_STOP;
03237       ast_mutex_unlock(&monlock);
03238    } else {
03239       ast_log(LOG_WARNING, "Unable to lock the monitor\n");
03240       return -1;
03241    }
03242    if (!ast_mutex_lock(&iflock)) {
03243       /* destroy all the interfaces and free their memory */
03244       p = iflist;
03245       while(p) {
03246          pl = p;
03247          p = p->next;
03248          /* free associated memory */
03249          ast_mutex_destroy(&pl->lock);
03250          free(pl);
03251       }
03252       iflist = NULL;
03253       ast_mutex_unlock(&iflock);
03254    } else {
03255       ast_log(LOG_WARNING, "Unable to lock the interface list\n");
03256       return -1;
03257    }
03258    if (!gatekeeper_disable)
03259       h323_gk_urq();
03260    h323_end_process();
03261    if (io)
03262       io_context_destroy(io);
03263    if (sched)
03264       sched_context_destroy(sched);
03265 
03266    ASTOBJ_CONTAINER_DESTROYALL(&userl, oh323_destroy_user);
03267    ASTOBJ_CONTAINER_DESTROY(&userl);
03268    ASTOBJ_CONTAINER_DESTROYALL(&peerl, oh323_destroy_peer);
03269    ASTOBJ_CONTAINER_DESTROY(&peerl);
03270    ASTOBJ_CONTAINER_DESTROYALL(&aliasl, oh323_destroy_alias);
03271    ASTOBJ_CONTAINER_DESTROY(&aliasl);
03272 
03273    return 0;
03274 }

static int update_common_options ( struct ast_variable v,
struct call_options *  options 
) [static]

Definition at line 1254 of file chan_h323.c.

References ast_callerid_split(), ast_log(), ast_parse_allow_disallow(), ast_true(), DEPRECATED, ast_variable::lineno, LOG_WARNING, ast_variable::name, and ast_variable::value.

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

01255 {
01256    int tmp;
01257 
01258    if (!strcasecmp(v->name, "allow")) {
01259       ast_parse_allow_disallow(&options->prefs, &options->capability, v->value, 1);
01260    } else if (!strcasecmp(v->name, "disallow")) {
01261       ast_parse_allow_disallow(&options->prefs, &options->capability, v->value, 0);
01262    } else if (!strcasecmp(v->name, "dtmfmode")) {
01263       if (!strcasecmp(v->value, "inband")) {
01264          options->dtmfmode = H323_DTMF_INBAND;
01265       } else if (!strcasecmp(v->value, "rfc2833")) {
01266          options->dtmfmode = H323_DTMF_RFC2833;
01267       } else {
01268          ast_log(LOG_WARNING, "Unknown dtmf mode '%s', using rfc2833\n", v->value);
01269          options->dtmfmode = H323_DTMF_RFC2833;
01270       }
01271    } else if (!strcasecmp(v->name, "dtmfcodec")) {
01272       tmp = atoi(v->value);
01273       if (tmp < 96)
01274          ast_log(LOG_WARNING, "Invalid %s value %s at line %d\n", v->name, v->value, v->lineno);
01275       else
01276          options->dtmfcodec = tmp;
01277    } else if (!strcasecmp(v->name, "bridge")) {
01278       options->bridge = ast_true(v->value);
01279    } else if (!strcasecmp(v->name, "nat")) {
01280       options->nat = ast_true(v->value);
01281    } else if (!strcasecmp(v->name, "noFastStart")) {
01282       DEPRECATED(v, "fastStart");
01283       options->fastStart = !ast_true(v->value);
01284    } else if (!strcasecmp(v->name, "fastStart")) {
01285       options->fastStart = ast_true(v->value);
01286    } else if (!strcasecmp(v->name, "noH245Tunneling")) {
01287       DEPRECATED(v, "h245Tunneling");
01288       options->h245Tunneling = !ast_true(v->value);
01289    } else if (!strcasecmp(v->name, "h245Tunneling")) {
01290       options->h245Tunneling = ast_true(v->value);
01291    } else if (!strcasecmp(v->name, "noSilenceSuppression")) {
01292       DEPRECATED(v, "silenceSuppression");
01293       options->silenceSuppression = !ast_true(v->value);
01294    } else if (!strcasecmp(v->name, "silenceSuppression")) {
01295       options->silenceSuppression = ast_true(v->value);
01296    } else if (!strcasecmp(v->name, "progress_setup")) {
01297       tmp = atoi(v->value);
01298       if ((tmp != 0) && (tmp != 1) && (tmp != 3) && (tmp != 8)) {
01299          ast_log(LOG_WARNING, "Invalid value %s for %s at line %d, assuming 0\n", v->value, v->name, v->lineno);
01300          tmp = 0;
01301       }
01302       options->progress_setup = tmp;
01303    } else if (!strcasecmp(v->name, "progress_alert")) {
01304       tmp = atoi(v->value);
01305       if ((tmp != 0) && (tmp != 1) && (tmp != 8)) {
01306          ast_log(LOG_WARNING, "Invalid value %s for %s at line %d, assuming 0\n", v->value, v->name, v->lineno);
01307          tmp = 0;
01308       }
01309       options->progress_alert = tmp;
01310    } else if (!strcasecmp(v->name, "progress_audio")) {
01311       options->progress_audio = ast_true(v->value);
01312    } else if (!strcasecmp(v->name, "callerid")) {
01313       ast_callerid_split(v->value, options->cid_name, sizeof(options->cid_name), options->cid_num, sizeof(options->cid_num));
01314    } else if (!strcasecmp(v->name, "fullname")) {
01315       ast_copy_string(options->cid_name, v->value, sizeof(options->cid_name));
01316    } else if (!strcasecmp(v->name, "cid_number")) {
01317       ast_copy_string(options->cid_num, v->value, sizeof(options->cid_num));
01318    } else if (!strcasecmp(v->name, "tunneling")) {
01319       if (!strcasecmp(v->value, "none"))
01320          options->tunnelOptions = 0;
01321       else if (!strcasecmp(v->value, "cisco"))
01322          options->tunnelOptions |= H323_TUNNEL_CISCO;
01323       else if (!strcasecmp(v->value, "qsig"))
01324          options->tunnelOptions |= H323_TUNNEL_QSIG;
01325       else
01326          ast_log(LOG_WARNING, "Invalid value %s for %s at line %d\n", v->value, v->name, v->lineno);
01327    } else
01328       return 1;
01329 
01330    return 0;
01331 }

static int update_state ( struct oh323_pvt pvt,
int  state,
int  signal 
) [static]

Definition at line 1170 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().

01171 {
01172    if (!pvt)
01173       return 0;
01174    if (pvt->owner && !ast_channel_trylock(pvt->owner)) {
01175       if (state >= 0)
01176          ast_setstate(pvt->owner, state);
01177       if (signal >= 0)
01178          ast_queue_control(pvt->owner, signal);
01179       ast_channel_unlock(pvt->owner);
01180       return 1;
01181    }
01182    else {
01183       if (state >= 0)
01184          pvt->newstate = state;
01185       if (signal >= 0)
01186          pvt->newcontrol = signal;
01187       return 0;
01188    }
01189 }


Variable Documentation

int acceptAnonymous = 1 [static]

Definition at line 151 of file chan_h323.c.

struct ast_alias_list aliasl [static]

struct sockaddr_in bindaddr [static]

Definition at line 139 of file chan_h323.c.

struct ast_cli_entry cli_h323[] [static]

Definition at line 2684 of file chan_h323.c.

Initial value:

 {
   { "h.323", "debug", NULL },
   h323_do_debug, "Enable H.323 debug",
   debug_usage }

Definition at line 2669 of file chan_h323.c.

Initial value:

 {
   { "h.323", "gk", "cycle", NULL },
   h323_gk_cycle, "Manually re-register with the Gatekeper",
   show_cycle_usage }

Definition at line 2679 of file chan_h323.c.

Initial value:

 {
   { "h.323", "no", "debug", NULL },
   h323_no_debug, "Disable H.323 debug",
   no_debug_usage }

Definition at line 2664 of file chan_h323.c.

Initial value:

 {
   { "h.323", "no", "trace", NULL },
   h323_no_trace, "Disable H.323 Stack Tracing",
   no_trace_usage }

Definition at line 2659 of file chan_h323.c.

struct ast_cli_entry cli_h323_reload [static]

Initial value:

   { { "h.323", "reload", NULL },
   h323_reload, "Reload H.323 configuration",
   h323_reload_usage
}

Definition at line 3011 of file chan_h323.c.

Initial value:

 {
   { "h.323", "trace", NULL },
   h323_do_trace, "Enable H.323 Stack Tracing",
   trace_usage }

Definition at line 2674 of file chan_h323.c.

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

Definition at line 137 of file chan_h323.c.

char debug_usage[] [static]

Initial value:

"Usage: h.323 debug\n"
"       Enables H.323 debug output\n"

Definition at line 2635 of file chan_h323.c.

char default_context[AST_MAX_CONTEXT] = "default" [static]

Definition at line 138 of file chan_h323.c.

struct ast_jb_conf default_jbconf [static]

Global jitterbuffer configuration - by default, jb is disabled

Definition at line 126 of file chan_h323.c.

char gatekeeper[100] [static]

Definition at line 145 of file chan_h323.c.

int gatekeeper_disable = 1 [static]

Definition at line 146 of file chan_h323.c.

int gatekeeper_discover = 0 [static]

Definition at line 147 of file chan_h323.c.

int gkroute = 0 [static]

Definition at line 148 of file chan_h323.c.

struct ast_jb_conf global_jbconf [static]

Definition at line 133 of file chan_h323.c.

call_options_t global_options [static]

Definition at line 156 of file chan_h323.c.

char h323_reload_usage[] [static]

Initial value:

"Usage: h323 reload\n"
"       Reloads H.323 configuration from h323.conf\n"

Definition at line 2655 of file chan_h323.c.

int h323_reloading = 0 [static]

Definition at line 228 of file chan_h323.c.

int h323_signalling_port = 1720 [static]

H.323 configuration values

Definition at line 144 of file chan_h323.c.

int h323debug

Definition at line 123 of file chan_h323.c.

struct oh323_pvt * iflist

struct io_context* io [static]

Definition at line 214 of file chan_h323.c.

pthread_t monitor_thread = AST_PTHREADT_NULL [static]

Definition at line 232 of file chan_h323.c.

char no_debug_usage[] [static]

Initial value:

"Usage: h.323 debug off\n"
"       Disables H.323 debug output\n"

Definition at line 2639 of file chan_h323.c.

char no_trace_usage[] [static]

Initial value:

"Usage: h.323 trace off\n"
"       Disables H.323 stack tracing for debugging purposes\n"

Definition at line 2631 of file chan_h323.c.

struct ast_rtp_protocol oh323_rtp [static]

Definition at line 3093 of file chan_h323.c.

struct ast_channel_tech oh323_tech [static]

Definition at line 247 of file chan_h323.c.

answer_call_cb on_answer_call

Definition at line 115 of file chan_h323.c.

chan_ringing_cb on_chan_ringing

Definition at line 112 of file chan_h323.c.

clear_con_cb on_connection_cleared

Definition at line 114 of file chan_h323.c.

con_established_cb on_connection_established

Definition at line 113 of file chan_h323.c.

Definition at line 108 of file chan_h323.c.

hangup_cb on_hangup

Definition at line 118 of file chan_h323.c.

setup_incoming_cb on_incoming_call

Definition at line 110 of file chan_h323.c.

setup_outbound_cb on_outgoing_call

Definition at line 111 of file chan_h323.c.

progress_cb on_progress

Definition at line 116 of file chan_h323.c.

receive_digit_cb on_receive_digit

Definition at line 107 of file chan_h323.c.

Definition at line 117 of file chan_h323.c.

setcapabilities_cb on_setcapabilities

Definition at line 119 of file chan_h323.c.

setpeercapabilities_cb on_setpeercapabilities

Definition at line 120 of file chan_h323.c.

start_rtp_cb on_start_rtp_channel

Definition at line 109 of file chan_h323.c.

struct ast_peer_list peerl [static]

struct sched_context* sched [static]

Asterisk RTP stuff

Definition at line 213 of file chan_h323.c.

char secret[50] [static]

char show_cycle_usage[] [static]

Initial value:

"Usage: h.323 gk cycle\n"
"       Manually re-register with the Gatekeper (Currently Disabled)\n"

Definition at line 2643 of file chan_h323.c.

char show_hangup_usage[] [static]

Initial value:

"Usage: h.323 hangup <token>\n"
"       Manually try to hang up call identified by <token>\n"

Definition at line 2647 of file chan_h323.c.

char show_tokens_usage[] [static]

Initial value:

"Usage: h.323 show tokens\n"
"       Print out all active call tokens\n"

Definition at line 2651 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 136 of file chan_h323.c.

int tos = 0 [static]

Definition at line 152 of file chan_h323.c.

char trace_usage[] [static]

Initial value:

"Usage: h.323 trace <level num>\n"
"       Enables H.323 stack tracing for debugging purposes\n"

Definition at line 2627 of file chan_h323.c.

unsigned int unique = 0 [static]

Definition at line 154 of file chan_h323.c.

int userbyalias = 1 [static]

Definition at line 150 of file chan_h323.c.

struct ast_user_list userl [static]


Generated on Sat Apr 12 07:12:35 2008 for Asterisk - the Open Source PBX by  doxygen 1.5.5