diff options
author | jeremy <jeremy@f38db490-d61c-443f-a65b-d21fe96a405b> | 2003-08-16 17:00:22 +0000 |
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committer | jeremy <jeremy@f38db490-d61c-443f-a65b-d21fe96a405b> | 2003-08-16 17:00:22 +0000 |
commit | 2a6e56017154bbf1ca5c5fb3a43d92174daf9c30 (patch) | |
tree | 0acee323343cd258c874d8a574a8124fd1045aa5 /channels/h323/chan_h323.c | |
parent | e5f350c934aea3720c036f60d481e44e9ce853de (diff) |
Add H323 to normal build process
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@1355 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'channels/h323/chan_h323.c')
-rwxr-xr-x | channels/h323/chan_h323.c | 1770 |
1 files changed, 0 insertions, 1770 deletions
diff --git a/channels/h323/chan_h323.c b/channels/h323/chan_h323.c deleted file mode 100755 index 9ab65122c..000000000 --- a/channels/h323/chan_h323.c +++ /dev/null @@ -1,1770 +0,0 @@ -/* - * chan_h323.c - * - * OpenH323 Channel Driver for ASTERISK PBX. - * By Jeremy McNamara - * For The NuFone Network - * - * This code has been derived from code created by - * Michael Manousos and Mark Spencer - * - * This file is part of the chan_h323 driver for Asterisk - * - * chan_h323 is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * chan_h323 is distributed WITHOUT ANY WARRANTY; without even - * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - - -#include <stdio.h> -#include <pthread.h> -#include <string.h> -#include <asterisk/lock.h> -#include <asterisk/logger.h> -#include <asterisk/channel.h> -#include <asterisk/channel_pvt.h> -#include <asterisk/config.h> -#include <asterisk/module.h> -#include <asterisk/pbx.h> -#include <asterisk/options.h> -#include <asterisk/lock.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 <sys/socket.h> -#include <net/if.h> -#include <errno.h> -#include <unistd.h> -#include <stdlib.h> -#include <fcntl.h> -#include <netdb.h> -#include <sys/signal.h> -#include <netinet/ip.h> - - -#include "chan_h323.h" - -/** String variables required by ASTERISK */ -static char *type = "H323"; -static char *desc = "The NuFone Network's Open H.323 Channel Driver"; -static char *tdesc = "The NuFone Network's Open H.323 Channel Driver"; -static char *config = "h323.conf"; - -static char default_context[AST_MAX_EXTENSION]; - -/** H.323 configuration values */ -static char gatekeeper[100]; -static int gatekeeper_disable = 1; -static int gatekeeper_discover = 0; -static int usingGk; -static int port = 1720; -static int gkroute = 0; - -/* Just about everybody seems to support ulaw, so make it a nice default */ -static int capability = AST_FORMAT_ULAW; - -/* TOS flag */ -static int tos = 0; - -static int dtmfmode = H323_DTMF_RFC2833; - -static char secret[50]; - -/** Private structure of a OpenH323 channel */ -struct oh323_pvt { - ast_mutex_t lock; /* Channel private lock */ - call_options_t calloptions; /* Options to be used during call setup */ - int alreadygone; /* Whether or not we've already been destroyed by or peer */ - int needdestroy; /* if we need to be destroyed */ - call_details_t cd; /* Call details */ - struct ast_channel *owner; /* Who owns us */ - int capability; /* Special capability */ - int nonCodecCapability; - int outgoing; /* Outgoing or incoming call? */ - int nat; /* Are we talking to a NAT EP?*/ - int bridge; /* Determine of we should native bridge or not*/ - char exten[AST_MAX_EXTENSION]; /* Requested extension */ - char context[AST_MAX_EXTENSION]; /* Context where to start */ - char username[81]; /* H.323 alias using this channel */ - char accountcode[256]; /* Account code */ - int amaflags; /* AMA Flags */ - char callerid[80]; /* Caller*ID if available */ - struct ast_rtp *rtp; /* RTP Session */ - int dtmfmode; - struct ast_dsp *vad; /* Used for in-band DTMF detection */ - struct oh323_pvt *next; /* Next channel in list */ -} *iflist = NULL; - -static struct ast_user_list { - struct oh323_user *users; - ast_mutex_t lock; -} userl = { NULL, AST_MUTEX_INITIALIZER }; - -static struct ast_peer_list { - struct oh323_peer *peers; - ast_mutex_t lock; -} peerl = { NULL, AST_MUTEX_INITIALIZER }; - -static struct ast_alias_list { - struct oh323_alias *aliases; - ast_mutex_t lock; -} aliasl = { NULL, AST_MUTEX_INITIALIZER }; - -/** Asterisk RTP stuff*/ -static struct sched_context *sched; -static struct io_context *io; - -/** Protect the interface list (of oh323_pvt's) */ -static ast_mutex_t iflock = AST_MUTEX_INITIALIZER; - -/** Usage counter and associated lock */ -static int usecnt =0; -static ast_mutex_t usecnt_lock = AST_MUTEX_INITIALIZER; - -/* Protect the monitoring thread, so only one process can kill or start it, and not - when it's doing something critical. */ -static ast_mutex_t monlock = AST_MUTEX_INITIALIZER; - -/* This is the thread for the monitor which checks for input on the channels - which are not currently in use. */ -static pthread_t monitor_thread = 0; - -static int restart_monitor(void); - -static void __oh323_destroy(struct oh323_pvt *p) -{ - struct oh323_pvt *cur, *prev = NULL; - - if (p->rtp) { - ast_rtp_destroy(p->rtp); - } - - /* Unlink us from the owner if we have one */ - if (p->owner) { - ast_mutex_lock(&p->owner->lock); - ast_log(LOG_DEBUG, "Detaching from %s\n", p->owner->name); - p->owner->pvt->pvt = NULL; - ast_mutex_unlock(&p->owner->lock); - } - cur = iflist; - while(cur) { - if (cur == p) { - if (prev) - prev->next = cur->next; - else - iflist = cur->next; - break; - } - prev = cur; - cur = cur->next; - } - if (!cur) { - ast_log(LOG_WARNING, "%p is not in list?!?! \n", cur); - } else - free(p); -} - -static void oh323_destroy(struct oh323_pvt *p) -{ - ast_mutex_lock(&iflock); - __oh323_destroy(p); - ast_mutex_unlock(&iflock); -} - -static struct oh323_alias *build_alias(char *name, struct ast_variable *v) -{ - struct oh323_alias *alias; - - alias = (struct oh323_alias *)malloc(sizeof(struct oh323_alias)); - - if (alias) { - memset(alias, 0, sizeof(struct oh323_alias)); - strncpy(alias->name, name, sizeof(alias->name)-1); - - while (v) { - if (!strcasecmp(v->name, "e164")) { - strncpy(alias->e164, v->value, sizeof(alias->e164)-1); - } else if (!strcasecmp(v->name, "prefix")) { - strncpy(alias->prefix, v->value, sizeof(alias->prefix)-1); - } else if (!strcasecmp(v->name, "context")) { - strncpy(alias->context, v->value, sizeof(alias->context)-1); - } else if (!strcasecmp(v->name, "secret")) { - strncpy(alias->secret, v->value, sizeof(alias->secret)-1); - } - v = v->next; - } - } - return alias; -} - -static struct oh323_user *build_user(char *name, struct ast_variable *v) -{ - struct oh323_user *user; - int format; - - user = (struct oh323_user *)malloc(sizeof(struct oh323_user)); - if (user) { - memset(user, 0, sizeof(struct oh323_user)); - strncpy(user->name, name, sizeof(user->name)-1); - - /* set the usage flag to a sane starting value*/ - user->inUse = 0; - /* Assume we can native bridge */ - user->bridge = 1; - - while(v) { - if (!strcasecmp(v->name, "context")) { - strncpy(user->context, v->value, sizeof(user->context)-1); - } else if (!strcasecmp(v->name, "bridge")) { - user->bridge = ast_true(v->value); - } else if (!strcasecmp(v->name, "noFastStart")) { - user->noFastStart = ast_true(v->value); - } else if (!strcasecmp(v->name, "noH245Tunneling")) { - user->noH245Tunneling = ast_true(v->value); - } else if (!strcasecmp(v->name, "noSilenceSuppression")) { - user->noSilenceSuppression = ast_true(v->value); - } else if (!strcasecmp(v->name, "secret")) { - strncpy(user->secret, v->value, sizeof(user->secret)-1); - } else if (!strcasecmp(v->name, "callerid")) { - strncpy(user->callerid, v->value, sizeof(user->callerid)-1); - } else if (!strcasecmp(v->name, "accountcode")) { - strncpy(user->accountcode, v->value, sizeof(user->accountcode)-1); - } else if (!strcasecmp(v->name, "incominglimit")) { - user->incominglimit = atoi(v->value); - if (user->incominglimit < 0) - user->incominglimit = 0; - } else if (!strcasecmp(v->name, "host")) { - if (!strcasecmp(v->value, "dynamic")) { - ast_log(LOG_ERROR, "Dynamic host configuration not implemented, yet!\n"); - free(user); - return NULL; - } else if (ast_get_ip(&user->addr, v->value)) { - free(user); - return NULL; - } - /* Let us know we need to use ip authentication */ - user->host = 1; - } else if (!strcasecmp(v->name, "amaflags")) { - format = ast_cdr_amaflags2int(v->value); - if (format < 0) { - ast_log(LOG_WARNING, "Invalid AMA Flags: %s at line %d\n", v->value, v->lineno); - } else { - user->amaflags = format; - } - } - v = v->next; - } - } - return user; -} - - -static struct oh323_peer *build_peer(char *name, struct ast_variable *v) -{ - struct oh323_peer *peer; - struct oh323_peer *prev; - int found=0; - - prev = NULL; - ast_mutex_lock(&peerl.lock); - peer = peerl.peers; - - while(peer) { - if (!strcasecmp(peer->name, name)) { - break; - } - prev = peer; - peer = peer->next; - } - - if (peer) { - found++; - /* Already in the list, remove it and it will be added back (or FREE'd) */ - if (prev) { - prev->next = peer->next; - } else { - peerl.peers = peer->next; - } - ast_mutex_unlock(&peerl.lock); - } else { - ast_mutex_unlock(&peerl.lock); - peer = malloc(sizeof(struct oh323_peer)); - memset(peer, 0, sizeof(struct oh323_peer)); - } - if (peer) { - if (!found) { - strncpy(peer->name, name, sizeof(peer->name)-1); - } - - /* set the usage flag to a sane starting value*/ - peer->inUse = 0; - - while(v) { - if (!strcasecmp(v->name, "context")) { - strncpy(peer->context, v->value, sizeof(peer->context)-1); - } else if (!strcasecmp(v->name, "bridge")) { - peer->bridge = ast_true(v->value); - } else if (!strcasecmp(v->name, "noFastStart")) { - peer->noFastStart = ast_true(v->value); - } else if (!strcasecmp(v->name, "noH245Tunneling")) { - peer->noH245Tunneling = ast_true(v->value); - } else if (!strcasecmp(v->name, "noSilenceSuppression")) { - peer->noSilenceSuppression = ast_true(v->value); - } else if (!strcasecmp(v->name, "outgoinglimit")) { - peer->outgoinglimit = atoi(v->value); - if (peer->outgoinglimit > 0) - peer->outgoinglimit = 0; - } else if (!strcasecmp(v->name, "host")) { - if (!strcasecmp(v->value, "dynamic")) { - ast_log(LOG_ERROR, "Dynamic host configuration not implemented, yet!\n"); - free(peer); - return NULL; - } - if (ast_get_ip(&peer->addr, v->value)) { - free(peer); - return NULL; - } - } - v=v->next; - } - } - return peer; -} - - - -/** - * Send (play) the specified digit to the channel. - * - */ -static int oh323_digit(struct ast_channel *c, char digit) -{ - struct oh323_pvt *p = c->pvt->pvt; - if (p && p->rtp && (p->dtmfmode & H323_DTMF_RFC2833)) { - ast_rtp_senddigit(p->rtp, digit); - } - /* If in-band DTMF is desired, send that */ - if (p->dtmfmode & H323_DTMF_INBAND) - h323_send_tone(p->cd.call_token, digit); - return 0; -} - - -/** - * Make a call over the specified channel to the specified - * destination. This function will parse the destination string - * and determine the address-number to call. - * Return -1 on error, 0 on success. - */ -static int oh323_call(struct ast_channel *c, char *dest, int timeout) -{ - int res; - struct oh323_pvt *p = c->pvt->pvt; - char called_addr[256]; - char *tmp; - - strtok_r(dest, "/", &(tmp)); - - ast_log(LOG_DEBUG, "dest=%s, timeout=%d.\n", dest, timeout); - - if ((c->_state != AST_STATE_DOWN) && (c->_state != AST_STATE_RESERVED)) { - ast_log(LOG_WARNING, "Line is already in use (%s)\n", c->name); - return -1; - } - - /* outgoing call */ - p->outgoing = 1; - - /* Clear the call token */ - if ((p->cd).call_token == NULL) - (p->cd).call_token = (char *)malloc(128); - - memset((char *)(p->cd).call_token, 0, 128); - - if (p->cd.call_token == NULL) { - ast_log(LOG_ERROR, "Not enough memory.\n"); - return -1; - } - - /* Build the address to call */ - memset(called_addr, 0, sizeof(dest)); - memcpy(called_addr, dest, sizeof(called_addr)); - - /* Copy callerid, if there is any */ - if (c->callerid) { - char *tmp = strchr(c->callerid, '"'); - if (!tmp) { - p->calloptions.callerid = malloc(80); // evil - // sprintf(p->calloptions.callerid, "\"%s\"", c->callerid); - sprintf(p->calloptions.callerid, "\"\" <%s>", c->callerid); - } else { - p->calloptions.callerid = strdup(c->callerid); - } - } - - res = h323_make_call(called_addr, &(p->cd), p->calloptions); - - if (res) { - ast_log(LOG_NOTICE, "h323_make_call failed(%s)\n", c->name); - return -1; - } - - ast_setstate(c, AST_STATE_RINGING); - return 0; -} - - -static int oh323_answer(struct ast_channel *c) -{ - int res; - - struct oh323_pvt *p = c->pvt->pvt; - - res = h323_answering_call(p->cd.call_token, 0); - - if (c->_state != AST_STATE_UP) - ast_setstate(c, AST_STATE_UP); - - return res; -} - -static int oh323_hangup(struct ast_channel *c) -{ - struct oh323_pvt *p = c->pvt->pvt; - int needcancel = 0; - if (h323debug) - ast_log(LOG_DEBUG, "oh323_hangup(%s)\n", c->name); - if (!c->pvt->pvt) { - ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n"); - return 0; - } - ast_mutex_lock(&p->lock); - /* Determine how to disconnect */ - if (p->owner != c) { - ast_log(LOG_WARNING, "Huh? We aren't the owner?\n"); - ast_mutex_unlock(&p->lock); - return 0; - } - if (!c || (c->_state != AST_STATE_UP)) - needcancel = 1; - /* Disconnect */ - p = c->pvt->pvt; - - /* Free dsp used for in-band DTMF detection */ - if (p->vad) { - ast_dsp_free(p->vad); - } - - p->owner = NULL; - c->pvt->pvt = NULL; - - /* Start the process if it's not already started */ - if (!p->alreadygone) { - if (h323_clear_call((p->cd).call_token)) - ast_log(LOG_DEBUG, "ClearCall failed.\n"); - p->needdestroy = 1; - } - - /* Update usage counter */ - ast_mutex_lock(&usecnt_lock); - usecnt--; - if (usecnt < 0) - ast_log(LOG_WARNING, "Usecnt < 0\n"); - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); - - ast_mutex_unlock(&p->lock); - return 0; -} - -static struct ast_frame *oh323_rtp_read(struct oh323_pvt *p) -{ - /* Retrieve audio/etc from channel. Assumes p->lock is already held. */ - struct ast_frame *f; - static struct ast_frame null_frame = { AST_FRAME_NULL, }; - f = ast_rtp_read(p->rtp); - /* Don't send RFC2833 if we're not supposed to */ - if (f && (f->frametype == AST_FRAME_DTMF) && !(p->dtmfmode & H323_DTMF_RFC2833)) - return &null_frame; - if (p->owner) { - /* We already hold the channel lock */ - if (f->frametype == AST_FRAME_VOICE) { - if (f->subclass != p->owner->nativeformats) { - ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass); - p->owner->nativeformats = f->subclass; - ast_set_read_format(p->owner, p->owner->readformat); - ast_set_write_format(p->owner, p->owner->writeformat); - } - - /* Do in-band DTMF detection */ - if (p->dtmfmode & H323_DTMF_INBAND) { - f = ast_dsp_process(p->owner,p->vad,f,0); - if (f->frametype == AST_FRAME_DTMF) - ast_log(LOG_DEBUG, "Got in-band digit %c.\n", f->subclass); - } - - - } - } - return f; -} - - -static struct ast_frame *oh323_read(struct ast_channel *c) -{ - struct ast_frame *fr; - struct oh323_pvt *p = c->pvt->pvt; - ast_mutex_lock(&p->lock); - fr = oh323_rtp_read(p); - ast_mutex_unlock(&p->lock); - return fr; -} - -static int oh323_write(struct ast_channel *c, struct ast_frame *frame) -{ - struct oh323_pvt *p = c->pvt->pvt; - int res = 0; - if (frame->frametype != AST_FRAME_VOICE) { - if (frame->frametype == AST_FRAME_IMAGE) - return 0; - else { - ast_log(LOG_WARNING, "Can't send %d type frames with H323 write\n", frame->frametype); - return 0; - } - } else { - if (!(frame->subclass & c->nativeformats)) { - ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n", - frame->subclass, c->nativeformats, c->readformat, c->writeformat); - return -1; - } - } - if (p) { - ast_mutex_lock(&p->lock); - if (p->rtp) { - res = ast_rtp_write(p->rtp, frame); - } - ast_mutex_unlock(&p->lock); - } - return res; -} - -/** FIXME: Can I acutally use this or does Open H.323 take care of everything? */ -static int oh323_indicate(struct ast_channel *c, int condition) -{ - - struct oh323_pvt *p = c->pvt->pvt; - - switch(condition) { - case AST_CONTROL_RINGING: - if (c->_state == AST_STATE_RING) { - // transmit_response(p, "180 Ringing", &p->initreq); - break; - } - return -1; - case AST_CONTROL_BUSY: - if (c->_state != AST_STATE_UP) { - // transmit_response(p, "600 Busy everywhere", &p->initreq); - p->alreadygone = 1; - ast_softhangup(c, AST_SOFTHANGUP_DEV); - break; - } - return -1; - case AST_CONTROL_CONGESTION: - if (c->_state != AST_STATE_UP) { - // transmit_response(p, "486 Busy here", &p->initreq); - p->alreadygone = 1; - ast_softhangup(c, AST_SOFTHANGUP_DEV); - break; - } - return -1; - case -1: - return -1; - default: - ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", condition); - return -1; - } - return 0; -} - -// FIXME: WTF is this? Do I need this??? -static int oh323_fixup(struct ast_channel *oldchan, struct ast_channel *newchan) -{ - struct oh323_pvt *p = newchan->pvt->pvt; - - ast_mutex_lock(&p->lock); - if (p->owner != oldchan) { - ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, p->owner); - return -1; - } - p->owner = newchan; - ast_mutex_unlock(&p->lock); - return 0; -} - -static struct ast_channel *oh323_new(struct oh323_pvt *i, int state, const char *host) -{ - struct ast_channel *tmp; - int fmt; - tmp = ast_channel_alloc(1); - - if (tmp) { - - snprintf(tmp->name, sizeof(tmp->name)-1, "H323/%s", host); - tmp->nativeformats = i->capability; - if (!tmp->nativeformats) - tmp->nativeformats = capability; - fmt = ast_best_codec(tmp->nativeformats); - tmp->type = type; - tmp->fds[0] = ast_rtp_fd(i->rtp); - ast_setstate(tmp, state); - - if (state == AST_STATE_RING) - tmp->rings = 1; - - tmp->writeformat = fmt; - tmp->pvt->rawwriteformat = fmt; - tmp->readformat = fmt; - tmp->pvt->rawreadformat = fmt; - - /* Allocate dsp for in-band DTMF support */ - if (i->dtmfmode & H323_DTMF_INBAND) { - i->vad = ast_dsp_new(); - ast_dsp_set_features(i->vad, DSP_FEATURE_DTMF_DETECT); - } - - /* Register the OpenH323 channel's functions. */ - tmp->pvt->pvt = i; - tmp->pvt->send_digit = oh323_digit; - tmp->pvt->call = oh323_call; - tmp->pvt->hangup = oh323_hangup; - tmp->pvt->answer = oh323_answer; - tmp->pvt->read = oh323_read; - tmp->pvt->write = oh323_write; - tmp->pvt->indicate = oh323_indicate; - tmp->pvt->fixup = oh323_fixup; - tmp->pvt->bridge = ast_rtp_bridge; - - /* Set the owner of this channel */ - i->owner = tmp; - - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); - strncpy(tmp->context, i->context, sizeof(tmp->context)-1); - strncpy(tmp->exten, i->exten, sizeof(tmp->exten)-1); - tmp->priority = 1; - if (strlen(i->callerid)) - tmp->callerid = strdup(i->callerid); - if (strlen(i->accountcode)) - strncpy(tmp->accountcode, i->accountcode, sizeof(tmp->accountcode)-1); - if (i->amaflags) - tmp->amaflags = i->amaflags; - if (state != AST_STATE_DOWN) { - if (ast_pbx_start(tmp)) { - ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); - ast_hangup(tmp); - tmp = NULL; - } - } - } else - ast_log(LOG_WARNING, "Unable to allocate channel structure\n"); - return tmp; -} - -static struct oh323_pvt *oh323_alloc(int callid) -{ - struct oh323_pvt *p; - - p = malloc(sizeof(struct oh323_pvt)); - if (!p) { - ast_log(LOG_ERROR, "Couldn't allocate private structure. This is bad\n"); - return NULL; - } - - /* Keep track of stuff */ - memset(p, 0, sizeof(struct oh323_pvt)); - p->rtp = ast_rtp_new(sched, io, 1, 0); - - if (!p->rtp) { - ast_log(LOG_WARNING, "Unable to create RTP session: %s\n", strerror(errno)); - free(p); - return NULL; - } - ast_rtp_settos(p->rtp, tos); - ast_mutex_init(&p->lock); - - p->cd.call_reference = callid; - p->bridge = 1; - - p->dtmfmode = dtmfmode; - if (p->dtmfmode & H323_DTMF_RFC2833) - p->nonCodecCapability |= AST_RTP_DTMF; - - /* Add to interface list */ - ast_mutex_lock(&iflock); - p->next = iflist; - iflist = p; - ast_mutex_unlock(&iflock); - return p; -} - -static struct oh323_pvt *find_call(int call_reference) -{ - struct oh323_pvt *p; - - ast_mutex_lock(&iflock); - p = iflist; - - while(p) { - if (p->cd.call_reference == call_reference) { - /* Found the call */ - ast_mutex_unlock(&iflock); - return p; - } - p = p->next; - } - ast_mutex_unlock(&iflock); - return NULL; - -} - -static struct ast_channel *oh323_request(char *type, int format, void *data) -{ - - int oldformat; - struct oh323_pvt *p; - struct ast_channel *tmpc = NULL; - char *dest = data; - char *ext, *host; - char *h323id = NULL; - char tmp[256]; - - - ast_log(LOG_DEBUG, "type=%s, format=%d, data=%s.\n", type, format, (char *)data); - - oldformat = format; - format &= capability; - if (!format) { - ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format); - return NULL; - } - - strncpy(tmp, dest, sizeof(tmp) - 1); - - host = strchr(tmp, '@'); - if (host) { - *host = '\0'; - host++; - ext = tmp; - } else { - host = tmp; - ext = NULL; - } - - strtok_r(host, "/", &(h323id)); - - if (*h323id) { - h323_set_id(h323id); - } - - - p = oh323_alloc(0); - - if (!p) { - ast_log(LOG_WARNING, "Unable to build pvt data for '%s'\n", (char *)data); - return NULL; - } - - /* Assign a default capability */ - p->capability = capability; - - if (p->dtmfmode) { - if (p->dtmfmode & H323_DTMF_RFC2833) - p->nonCodecCapability |= AST_RTP_DTMF; - else - p->nonCodecCapability &= ~AST_RTP_DTMF; - } - - - ast_log(LOG_DEBUG, "Host: %s\tUsername: %s\n", host, p->username); - - if (ext) - strncpy(p->username, ext, sizeof(p->username) - 1); - tmpc = oh323_new(p, AST_STATE_DOWN, host); - if (!tmpc) - oh323_destroy(p); - - restart_monitor(); - - return tmpc; -} - -struct oh323_alias *find_alias(const char *source_aliases) -{ - struct oh323_alias *a; - - a = aliasl.aliases; - - while(a) { - - if (!strcasecmp(a->name, source_aliases)) { - break; - } - a = a->next; - } - return a; -} - -struct oh323_user *find_user(const char *source_aliases) -{ - struct oh323_user *u; - - u = userl.users; - - while(u) { - - if (!strcasecmp(u->name, source_aliases)) { - break; - } - u = u->next; - } - return u; - -} - -struct oh323_peer *find_peer(char *dest_peer) -{ - struct oh323_peer *p; - - p = peerl.peers; - - while(p) { - if (!strcasecmp(p->name, dest_peer)) { - break; - } - p = p->next; - } - return p; - -} - -/** - * Callback for sending digits from H.323 up to asterisk - * - */ -int send_digit(unsigned call_reference, char digit) -{ - struct oh323_pvt *p; - struct ast_frame f; - - ast_log(LOG_DEBUG, "Recieved Digit: %c\n", digit); - p = find_call(call_reference); - - if (!p) { - ast_log(LOG_ERROR, "Private structure not found in send_digit.\n"); - return -1; - } - memset(&f, 0, sizeof(f)); - f.frametype = AST_FRAME_DTMF; - f.subclass = digit; - f.datalen = 0; - f.samples = 300; - f.offset = 0; - f.data = NULL; - f.mallocd = 0; - f.src = "SEND_DIGIT"; - - return ast_queue_frame(p->owner, &f, 1); -} - -/** - * Call-back function that gets called when any H.323 connection is made - * - * Returns the local RTP port - */ -int create_connection(unsigned call_reference) -{ - struct oh323_pvt *p; - struct sockaddr_in us; - - p = find_call(call_reference); - - if (!p) { - ast_log(LOG_ERROR, "Unable to allocate private structure, this is very bad.\n"); - return -1; - } - - /* figure out our local RTP port and tell the H.323 stack about it*/ - ast_rtp_get_us(p->rtp, &us); - return ntohs(us.sin_port); -} - -/** - * Call-back function for incoming calls - * - * Returns 1 on success - */ - -int setup_incoming_call(call_details_t cd) -{ - - struct oh323_pvt *p = NULL; - struct ast_channel *c = NULL; - struct oh323_user *user = NULL; - struct oh323_alias *alias = NULL; - - /* allocate the call*/ - p = oh323_alloc(cd.call_reference); - - if (!p) { - ast_log(LOG_ERROR, "Unable to allocate private structure, this is bad.\n"); - return 0; - } - - /* Populate the call details in the private structure */ - p->cd.call_token = cd.call_token; - p->cd.call_source_aliases = cd.call_source_aliases; - p->cd.call_dest_alias = cd.call_dest_alias; - p->cd.call_source_e164 = cd.call_source_e164; - p->cd.call_dest_e164 = cd.call_dest_e164; - - if (h323debug) { - printf(" == Setting up Call\n"); - printf(" -- Calling party name: %s\n", p->cd.call_source_aliases); - printf(" -- Calling party number: %s\n", p->cd.call_source_e164); - printf(" -- Called party name: %s\n", p->cd.call_dest_alias); - printf(" -- Called party number: %s\n", p->cd.call_dest_e164); - } - - /* Decide if we are allowing Gatekeeper routed calls*/ - if ((!strcasecmp(cd.sourceIp, gatekeeper)) && (gkroute == -1) && (usingGk == 1)) { - - if (strlen(cd.call_dest_e164)) { - strncpy(p->exten, cd.call_dest_e164, sizeof(p->exten)-1); - strncpy(p->context, default_context, sizeof(p->context)-1); - } else { - alias = find_alias(cd.call_dest_alias); - - if (!alias) { - ast_log(LOG_ERROR, "Call for %s rejected, alias not found\n", cd.call_dest_alias); - return 0; - } - printf("Alias found: %s and %s\n", alias->name, alias->context); - - strncpy(p->exten, alias->name, sizeof(p->exten)-1); - strncpy(p->context, alias->context, sizeof(p->context)-1); - } - - sprintf(p->callerid, "%s <%s>", p->cd.call_source_aliases, p->cd.call_source_e164); - - } else { - /* Either this call is not from the Gatekeeper - or we are not allowing gk routed calls */ - - user = find_user(cd.call_source_aliases); - - if (!user) { - sprintf(p->callerid, "%s <%s>", p->cd.call_source_aliases, p->cd.call_source_e164); - if (strlen(p->cd.call_dest_e164)) { - strncpy(p->exten, cd.call_dest_e164, sizeof(p->exten)-1); - } else { - strncpy(p->exten, cd.call_dest_alias, sizeof(p->exten)-1); - } - if (!strlen(default_context)) { - ast_log(LOG_ERROR, "Call from user '%s' rejected due to no default context\n", p->cd.call_source_aliases); - return 0; - } - strncpy(p->context, default_context, sizeof(p->context)-1); - ast_log(LOG_DEBUG, "Sending %s to context [%s]\n", cd.call_source_aliases, p->context); - } else { - if (user->host) { - if (strcasecmp(cd.sourceIp, inet_ntoa(user->addr.sin_addr))){ - - if(!strlen(default_context)) { - ast_log(LOG_ERROR, "Call from user '%s' rejected due to non-matching IP address of '%s'\n", user->name, cd.sourceIp); - return 0; - } - strncpy(p->context, default_context, sizeof(p->context)-1); - sprintf(p->exten,"i"); - goto exit; - } - } - if (user->incominglimit > 0) { - if (user->inUse >= user->incominglimit) { - ast_log(LOG_ERROR, "Call from user '%s' rejected due to usage limit of %d\n", user->name, user->incominglimit); - return 0; - } - } - strncpy(p->context, user->context, sizeof(p->context)-1); - p->bridge = user->bridge; - - if (strlen(user->callerid)) - strncpy(p->callerid, user->callerid, sizeof(p->callerid) - 1); - else - sprintf(p->callerid, "%s <%s>", p->cd.call_source_aliases, p->cd.call_source_e164); - - if (strlen(p->cd.call_dest_e164)) { - strncpy(p->exten, cd.call_dest_e164, sizeof(p->exten)-1); - } else { - strncpy(p->exten, cd.call_dest_alias, sizeof(p->exten)-1); - } - - if (strlen(user->accountcode)) { - strncpy(p->accountcode, user->accountcode, sizeof(p->accountcode)-1); - } - - /* Increment the usage counter */ - user->inUse++; - } - } - -/* I know this is horrid, don't kill me saddam */ -exit: - /* allocate a channel and tell asterisk about it */ - c = oh323_new(p, AST_STATE_RINGING, cd.call_token); - - if (!c) { - ast_log(LOG_ERROR, "Couldn't create channel. This is bad\n"); - return 0; - } - - return 1; -} - -/** - * Call-back function to establish an outgoing H.323 call - * - * Returns 1 on success - */ -int setup_outgoing_call(call_details_t cd) -{ - return 1; -} - -#if 0 -if (p->inUse >= p->outgoinglimit) { - ast_log(LOG_ERROR, "Call to %s rejected due to usage limit of %d outgoing channels\n", p->name, p->inUse); - return 0; -} - -if (!p) { - ast_log(LOG_ERROR, "Rejecting call: peer %s not found\n", dest_peer); - return 0; -} -#endif - -/** - * Call-back function that gets called for each rtp channel opened - * - * Returns nothing - */ -void setup_rtp_connection(unsigned call_reference, const char *remoteIp, int remotePort) -{ - struct oh323_pvt *p = NULL; - struct sockaddr_in them; - - /* Find the call or allocate a private structure if call not found */ - p = find_call(call_reference); - - if (!p) { - ast_log(LOG_ERROR, "Something is wrong: rtp\n"); - return; - } - - them.sin_family = AF_INET; - them.sin_addr.s_addr = inet_addr(remoteIp); // only works for IPv4 - them.sin_port = htons(remotePort); - ast_rtp_set_peer(p->rtp, &them); - - return; -} - -/** - * Call-back function to signal asterisk that the channel has been answered - * Returns nothing - */ -void connection_made(unsigned call_reference) -{ - struct ast_channel *c = NULL; - struct oh323_pvt *p = NULL; - - p = find_call(call_reference); - - if (!p) - ast_log(LOG_ERROR, "Something is wrong: connection\n"); - - - if (!p->owner) { - printf("Channel has no owner\n"); - return; - } - c = p->owner; - - ast_setstate(c, AST_STATE_UP); - return; -} - -/** - * Call-back function to cleanup communication - * Returns nothing, - */ -void cleanup_connection(call_details_t cd) -{ - struct oh323_pvt *p = NULL; -// struct oh323_peer *peer = NULL; - struct oh323_user *user = NULL; - struct ast_rtp *rtp = NULL; - - ast_log(LOG_DEBUG, "Cleaning up our mess\n"); - - p = find_call(cd.call_reference); - - if (!p) { - return; - } - - /* Decrement usage counter */ - if (!p->outgoing) { - user = find_user(cd.call_source_aliases); - - if(user) - user->inUse--; - } - -#if 0 - if (p->outgoing) { - peer = find_peer(cd.call_dest_alias); - peer->inUse--; - } else { - user = find_user(cd.call_source_aliases); - user->inUse--; - } -#endif - - if (p->rtp) { - rtp = p->rtp; - p->rtp = NULL; - /* Immediately stop RTP */ - ast_rtp_destroy(rtp); - } - - p->alreadygone = 1; - - /* Send hangup */ - if (p->owner) - ast_queue_hangup(p->owner, 1); - - p = NULL; - return; -} - -static void *do_monitor(void *data) -{ - int res; - struct oh323_pvt *oh323 = NULL; - - for(;;) { - /* Check for interfaces needing to be killed */ - ast_mutex_lock(&iflock); -restartsearch: - oh323 = iflist; - while(oh323) { - if (oh323->needdestroy) { - __oh323_destroy(oh323); - goto restartsearch; - } - oh323 = oh323->next; - } - ast_mutex_unlock(&iflock); - - pthread_testcancel(); - - /* Wait for sched or io */ - res = ast_sched_wait(sched); - if ((res < 0) || (res > 1000)) - res = 1000; - res = ast_io_wait(io, res); - ast_mutex_lock(&monlock); - if (res >= 0) - ast_sched_runq(sched); - ast_mutex_unlock(&monlock); - } - /* Never reached */ - return NULL; - -} - -static int restart_monitor(void) -{ - /* If we're supposed to be stopped -- stay stopped */ - if (monitor_thread == -2) - return 0; - if (ast_mutex_lock(&monlock)) { - ast_log(LOG_WARNING, "Unable to lock monitor\n"); - return -1; - } - if (monitor_thread == pthread_self()) { - ast_mutex_unlock(&monlock); - ast_log(LOG_WARNING, "Cannot kill myself\n"); - return -1; - } - if (monitor_thread) { - /* Wake up the thread */ - pthread_kill(monitor_thread, SIGURG); - } else { - /* Start a new monitor */ - if (pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) { - ast_mutex_unlock(&monlock); - ast_log(LOG_ERROR, "Unable to start monitor thread.\n"); - return -1; - } - } - ast_mutex_unlock(&monlock); - return 0; -} - -static int h323_do_trace(int fd, int argc, char *argv[]) -{ - if (argc != 3) - return RESULT_SHOWUSAGE; - - h323_debug(1, atoi(argv[2])); - ast_cli(fd, "H.323 trace set to level %s\n", argv[2]); - return RESULT_SUCCESS; -} - -static int h323_no_trace(int fd, int argc, char *argv[]) -{ - if (argc != 3) - return RESULT_SHOWUSAGE; - - h323_debug(0,0); - ast_cli(fd, "H.323 trace disabled\n"); - return RESULT_SUCCESS; -} - -static int h323_do_debug(int fd, int argc, char *argv[]) -{ - if (argc != 2) - return RESULT_SHOWUSAGE; - - h323debug = 1; - ast_cli(fd, "H323 debug enabled\n"); - return RESULT_SUCCESS; -} - -static int h323_no_debug(int fd, int argc, char *argv[]) -{ - if (argc != 3) - return RESULT_SHOWUSAGE; - - h323debug = 0; - ast_cli(fd, "H323 Debug disabled\n"); - return RESULT_SUCCESS; -} - -static int h323_gk_cycle(int fd, int argc, char *argv[]) -{ - if (argc != 3) - return RESULT_SHOWUSAGE; - - h323_gk_urq(); - - /* Possibly register with a GK */ - if (gatekeeper_disable == 0) { - if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) { - ast_log(LOG_ERROR, "Gatekeeper registration failed.\n"); - h323_end_process(); - } - } - - return RESULT_SUCCESS; -} - - -static char trace_usage[] = -"Usage: h.323 trace <level num>\n" -" Enables H.323 stack tracing for debugging purposes\n"; - -static char no_trace_usage[] = -"Usage: h.323 no trace\n" -" Disables H.323 stack tracing for debugging purposes\n"; - -static char debug_usage[] = -"Usage: h.323 debug\n" -" Enables chan_h323 debug output\n"; - -static char no_debug_usage[] = -"Usage: h.323 no debug\n" -" Disables chan_h323 debug output\n"; - -static char show_codec_usage[] = -"Usage: h.323 show codec\n" -" Shows all enabled codecs\n"; - -static char show_cycle_usage[] = -"Usage: h.323 gk cycle\n" -" Manually re-register with the Gatekeper\n"; - - -static struct ast_cli_entry cli_trace = - { { "h.323", "trace", NULL }, h323_do_trace, "Enable H.323 Stack Tracing", trace_usage }; -static struct ast_cli_entry cli_no_trace = - { { "h.323", "no", "trace", NULL }, h323_no_trace, "Disable H.323 Stack Tracing", no_trace_usage }; -static struct ast_cli_entry cli_debug = - { { "h.323", "debug", NULL }, h323_do_debug, "Enable chan_h323 debug", debug_usage }; -static struct ast_cli_entry cli_no_debug = - { { "h.323", "no", "debug", NULL }, h323_no_debug, "Disable chan_h323 debug", no_debug_usage }; -static struct ast_cli_entry cli_show_codecs = - { { "h.323", "show", "codecs", NULL }, h323_show_codec, "Show enabled codecs", show_codec_usage }; -static struct ast_cli_entry cli_gk_cycle = - { { "h.323", "gk", "cycle", NULL }, h323_gk_cycle, "Manually re-register with the Gatekeper", show_cycle_usage }; - - - -int reload_config() -{ - - int format; - struct ast_config *cfg; - struct ast_variable *v; - struct oh323_peer *peer = NULL; - struct oh323_user *user = NULL; - struct oh323_alias *alias = NULL; - struct hostent *hp; - char *cat; - char *utype; - - cfg = ast_load(config); - - /* We *must* have a config file otherwise stop immediately */ - if (!cfg) { - ast_log(LOG_NOTICE, "Unable to load config %s, H.323 disabled\n", config); - return 0; - } - - h323debug=0; - dtmfmode = H323_DTMF_RFC2833; - - memset(&bindaddr, 0, sizeof(bindaddr)); - - v = ast_variable_browse(cfg, "general"); - while(v) { - /* Create the interface list */ - if (!strcasecmp(v->name, "port")) { - port = (int)strtol(v->value, NULL, 10); - } else if (!strcasecmp(v->name, "bindaddr")) { - if (!(hp = gethostbyname(v->value))) { - ast_log(LOG_WARNING, "Invalid address: %s\n", v->value); - } else { - memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr)); - } - } else if (!strcasecmp(v->name, "allow")) { - format = ast_getformatbyname(v->value); - if (format < 1) - ast_log(LOG_WARNING, "Cannot allow unknown format '%s'\n", v->value); - else - capability |= format; - } else if (!strcasecmp(v->name, "disallow")) { - format = ast_getformatbyname(v->value); - if (format < 1) - ast_log(LOG_WARNING, "Cannot disallow unknown format '%s'\n", v->value); - else - capability &= ~format; - } else if (!strcasecmp(v->name, "tos")) { - if (sscanf(v->value, "%i", &format) == 1) - tos = format & 0xff; - else if (!strcasecmp(v->value, "lowdelay")) - tos = IPTOS_LOWDELAY; - else if (!strcasecmp(v->value, "throughput")) - tos = IPTOS_THROUGHPUT; - else if (!strcasecmp(v->value, "reliability")) - tos = IPTOS_RELIABILITY; - else if (!strcasecmp(v->value, "mincost")) - tos = IPTOS_MINCOST; - else if (!strcasecmp(v->value, "none")) - tos = 0; - else - ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno); - } else if (!strcasecmp(v->name, "gatekeeper")) { - if (!strcasecmp(v->value, "DISABLE")) { - gatekeeper_disable = 1; - usingGk = 0; - } else if (!strcasecmp(v->value, "DISCOVER")) { - gatekeeper_disable = 0; - gatekeeper_discover = 1; - usingGk = 1; - } else { - gatekeeper_disable = 0; - usingGk = 1; - strncpy(gatekeeper, v->value, sizeof(gatekeeper)-1); - } - } else if (!strcasecmp(v->name, "secret")) { - strncpy(secret, v->value, sizeof(secret)-1); - } else if (!strcasecmp(v->name, "AllowGKRouted")) { - gkroute = ast_true(v->value); - } else if (!strcasecmp(v->name, "context")) { - strncpy(default_context, v->value, sizeof(default_context)-1); - printf(" == Setting default context to %s\n", default_context); - } else if (!strcasecmp(v->name, "dtmfmode")) { - if (!strcasecmp(v->value, "inband")) - dtmfmode=H323_DTMF_INBAND; - else if (!strcasecmp(v->value, "rfc2833")) - dtmfmode = H323_DTMF_RFC2833; - else { - ast_log(LOG_WARNING, "Unknown dtmf mode '%s', using rfc2833\n", v->value); - dtmfmode = H323_DTMF_RFC2833; - } - } - v = v->next; - } - - cat = ast_category_browse(cfg, NULL); - while(cat) { - if (strcasecmp(cat, "general")) { - utype = ast_variable_retrieve(cfg, cat, "type"); - if (utype) { - if (!strcasecmp(utype, "user") || !strcasecmp(utype, "friend")) { - user = build_user(cat, ast_variable_browse(cfg, cat)); - if (user) { - ast_mutex_lock(&userl.lock); - user->next = userl.users; - userl.users = user; - ast_mutex_unlock(&userl.lock); - } - } else if (!strcasecmp(utype, "peer") || !strcasecmp(utype, "friend")) { - peer = build_peer(cat, ast_variable_browse(cfg, cat)); - if (peer) { - ast_mutex_lock(&peerl.lock); - peer->next = peerl.peers; - peerl.peers = peer; - ast_mutex_unlock(&peerl.lock); - } - } else if (!strcasecmp(utype, "h323")) { - alias = build_alias(cat, ast_variable_browse(cfg, cat)); - if (alias) { - ast_mutex_lock(&aliasl.lock); - alias->next = aliasl.aliases; - aliasl.aliases = alias; - ast_mutex_unlock(&aliasl.lock); - } - } else { - ast_log(LOG_WARNING, "Unknown type '%s' for '%s' in %s\n", utype, cat, config); - } - } else - ast_log(LOG_WARNING, "Section '%s' lacks type\n", cat); - } - cat = ast_category_browse(cfg, cat); - } - - /* Register our H.323 aliases if any*/ - while (alias) { - if (h323_set_alias(alias)) { - ast_log(LOG_ERROR, "Alias %s rejected by endpoint\n", alias->name); - return -1; - } - alias = alias->next; - } - - /* Add some capabilities */ - if(h323_set_capability(capability, dtmfmode)) { - ast_log(LOG_ERROR, "Capabilities failure, this is bad.\n"); - return -1; - } - ast_destroy(cfg); - - return 0; -} - -void delete_users(void) -{ - struct oh323_user *user, *userlast; - struct oh323_peer *peer; - - /* Delete all users */ - ast_mutex_lock(&userl.lock); - for (user=userl.users;user;) { - userlast = user; - user=user->next; - free(userlast); - } - userl.users=NULL; - ast_mutex_unlock(&userl.lock); - ast_mutex_lock(&peerl.lock); - for (peer=peerl.peers;peer;) { - /* Assume all will be deleted, and we'll find out for sure later */ - peer->delme = 1; - peer = peer->next; - } - ast_mutex_unlock(&peerl.lock); -} - -void delete_aliases(void) -{ - struct oh323_alias *alias, *aliaslast; - - /* Delete all users */ - ast_mutex_lock(&aliasl.lock); - for (alias=aliasl.aliases;alias;) { - aliaslast = alias; - alias=alias->next; - free(aliaslast); - } - aliasl.aliases=NULL; - ast_mutex_unlock(&aliasl.lock); -} - -void prune_peers(void) -{ - /* Prune peers who still are supposed to be deleted */ - struct oh323_peer *peer, *peerlast, *peernext; - ast_mutex_lock(&peerl.lock); - peerlast = NULL; - for (peer=peerl.peers;peer;) { - peernext = peer->next; - if (peer->delme) { - free(peer); - if (peerlast) - peerlast->next = peernext; - else - peerl.peers = peernext; - } else - peerlast = peer; - peer=peernext; - } - ast_mutex_unlock(&peerl.lock); -} - -int reload(void) -{ - delete_users(); - delete_aliases(); - prune_peers(); - - if (strlen(gatekeeper)) { - h323_gk_urq(); - } - - reload_config(); - - /* Possibly register with a GK */ - if (gatekeeper_disable == 0) { - if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) { - ast_log(LOG_ERROR, "Gatekeeper registration failed.\n"); - h323_end_process(); - return -1; - } - } - restart_monitor(); - return 0; -} - - -static struct ast_rtp *oh323_get_rtp_peer(struct ast_channel *chan) -{ - struct oh323_pvt *p; - p = chan->pvt->pvt; - if (p && p->rtp && p->bridge) - return p->rtp; - ast_log(LOG_ERROR, "No associated RTP structure in pvt???\n"); - return NULL; -} - -static struct ast_rtp *oh323_get_vrtp_peer(struct ast_channel *chan) -{ - return NULL; -} - -static int oh323_set_rtp_peer(struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp) -{ - /* XXX Deal with Video */ - - struct oh323_pvt *p; - struct sockaddr_in them; - struct sockaddr_in us; - - if (!rtp) { - ast_log(LOG_NOTICE, "RTP is Null\n"); - return 0; - } - p = chan->pvt->pvt; - if (!p) { - ast_log(LOG_ERROR, "No Private Structure, this is bad\n"); - return -1; - } - - ast_rtp_get_peer(rtp, &them); - printf("peer is now: %s\n", inet_ntoa(them.sin_addr)); - - ast_rtp_set_peer(p->rtp, &them); - ast_rtp_get_us(p->rtp, &us); - - h323_native_bridge(p->cd.call_token, inet_ntoa(them.sin_addr), inet_ntoa(us.sin_addr)); - - return 0; - -} - -static struct ast_rtp_protocol oh323_rtp = { - get_rtp_info: oh323_get_rtp_peer, - get_vrtp_info: oh323_get_vrtp_peer, - set_rtp_peer: oh323_set_rtp_peer, -}; - - -int load_module() -{ - int res; - - /* fire up the H.323 Endpoint */ - h323_end_point_create(); - - res = reload_config(); - if (!res) { - /* Make sure we can register our channel type */ - if (ast_channel_register(type, tdesc, capability, oh323_request)) { - ast_log(LOG_ERROR, "Unable to register channel class %s\n", type); - h323_end_process(); - return -1; - } - ast_cli_register(&cli_debug); - ast_cli_register(&cli_no_debug); - ast_cli_register(&cli_trace); - ast_cli_register(&cli_no_trace); - ast_cli_register(&cli_show_codecs); - ast_cli_register(&cli_gk_cycle); - - oh323_rtp.type = type; - ast_rtp_proto_register(&oh323_rtp); - - sched = sched_context_create(); - if (!sched) { - ast_log(LOG_WARNING, "Unable to create schedule context\n"); - } - io = io_context_create(); - if (!io) { - ast_log(LOG_WARNING, "Unable to create I/O context\n"); - } - - /* Register our callback functions */ - h323_callback_register(setup_incoming_call, - setup_outgoing_call, - create_connection, - setup_rtp_connection, - cleanup_connection, - connection_made, send_digit); - - /* start the h.323 listener */ - if (h323_start_listener(port, bindaddr)) { - ast_log(LOG_ERROR, "Unable to create H323 listener.\n"); -// h323_end_process(); - return -1; - } - - /* Possibly register with a GK */ - if (gatekeeper_disable == 0) { - if (h323_set_gk(gatekeeper_discover, gatekeeper, secret)) { - ast_log(LOG_ERROR, "Gatekeeper registration failed.\n"); -// h323_end_process(); - return -1; - } - } - /* And start the monitor for the first time */ - restart_monitor(); - } else { - h323_end_process(); - } - return res; -} -int unload_module() -{ - struct oh323_pvt *p, *pl; - - if (!ast_mutex_lock(&iflock)) { - /* hangup all interfaces if they have an owner */ - p = iflist; - while(p) { - if (p->owner) - ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD); - p = p->next; - } - iflist = NULL; - ast_mutex_unlock(&iflock); - } else { - ast_log(LOG_WARNING, "Unable to lock the interface list\n"); - return -1; - } - - if (!ast_mutex_lock(&iflock)) { - /* destroy all the interfaces and free their memory */ - p = iflist; - while(p) { - pl = p; - p = p->next; - /* free associated memory */ - free(pl); - } - iflist = NULL; - ast_mutex_unlock(&iflock); - } else { - ast_log(LOG_WARNING, "Unable to lock the interface list\n"); - return -1; - } - h323_gk_urq(); - h323_end_process(); - - /* unregister rtp */ - ast_rtp_proto_unregister(&oh323_rtp); - - /* unregister commands */ - ast_cli_unregister(&cli_debug); - ast_cli_unregister(&cli_no_debug); - ast_cli_unregister(&cli_trace); - ast_cli_unregister(&cli_no_trace); - ast_cli_unregister(&cli_show_codecs); - ast_cli_unregister(&cli_gk_cycle); - - /* unregister channel type */ - ast_channel_unregister(type); - - return 0; - -} - -int usecount() -{ - int res; - ast_mutex_lock(&usecnt_lock); - res = usecnt; - ast_mutex_unlock(&usecnt_lock); - return res; -} - -char *description() -{ - return desc; -} - -char *key() -{ - return ASTERISK_GPL_KEY; -} - - - - |