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Version 0.1.2 from FTP 

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@198 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
markster 2000-01-07 10:54:40 +00:00
parent 075980cea1
commit e4b9f6a343
6 changed files with 208 additions and 957 deletions
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15
CHANGES
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@ -1,3 +1,18 @@
* Asterisk 0.1.2
-- Updated README file with a "Getting Started" section
-- Added sample sounds and configuration files.
-- Added LPC10 very low bandwidth (low quality) compression
-- Enhanced translation selection mechanism.
-- Enhanced IAX jitter buffer, improved reliability
-- Support echo cancelation on PhoneJack
-- Updated PhoneJack driver to std. Telephony interface
-- Added app_echo for evaluating VoIP latency
-- Added app_system to execute arbitrary programs
-- Updated sample configuration files
-- Added OSS channel driver (full duplex only)
-- Added IAX implementation
-- Fixed some deadlocks.
-- A whole bunch of bug fixes
* Asterisk 0.1.1
-- Revised translator, fixed some general race conditions throughout *
-- Made dialer somewhat more aware of incompatible voice channels

919
channels/chan_ixj.c
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@ -1,919 +0,0 @@
/*
* Asterisk -- A telephony toolkit for Linux.
*
* QuickNet Internet Phone Jack Channel
*
* Copyright (C) 1999, Mark Spencer
*
* Mark Spencer <markster@linux-support.net>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
#include <stdio.h>
#include <pthread.h>
#include <string.h>
#include <asterisk/channel.h>
#include <asterisk/channel_pvt.h>
#include <asterisk/config.h>
#include <asterisk/logger.h>
#include <asterisk/module.h>
#include <asterisk/pbx.h>
#include <asterisk/options.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include "ixjuser.h"
#include "DialTone.h"
#define IXJ_MAX_BUF 480
static char *desc = "QuickNet Internet Phone Jack";
static char *type = "PhoneJack";
static char *tdesc = "QuickNet Internet Phone Jack";
static char *config = "ixj.conf";
/* Default context for dialtone mode */
static char context[AST_MAX_EXTENSION] = "default";
char *ignore_rcs_id_for_chan_ixj = ixjuser_h_rcsid;
static int usecnt =0;
static pthread_mutex_t usecnt_lock = PTHREAD_MUTEX_INITIALIZER;
/* Protect the interface list (of ixj_pvt's) */
static pthread_mutex_t iflock = PTHREAD_MUTEX_INITIALIZER;
/* Protect the monitoring thread, so only one process can kill or start it, and not
when it's doing something critical. */
static pthread_mutex_t monlock = PTHREAD_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 = -1;
static int restart_monitor(void);
/* The private structures of the Phone Jack channels are linked for
selecting outgoing channels */
#define MODE_DIALTONE 1
#define MODE_IMMEDIATE 2
static struct ixj_pvt {
int fd; /* Raw file descriptor for this device */
struct ast_channel *owner; /* Channel we belong to, possibly NULL */
int mode; /* Is this in the */
int lastformat; /* Last output format */
int lastinput; /* Last input format */
int ministate; /* Miniature state, for dialtone mode */
char dev[256]; /* Device name */
struct ixj_pvt *next; /* Next channel in list */
struct ast_frame fr; /* Frame */
char offset[AST_FRIENDLY_OFFSET];
char buf[IXJ_MAX_BUF]; /* Static buffer for reading frames */
int obuflen;
int dialtone;
char context[AST_MAX_EXTENSION];
char obuf[IXJ_MAX_BUF * 2];
char ext[AST_MAX_EXTENSION];
} *iflist = NULL;
static int ixj_digit(struct ast_channel *ast, char digit)
{
struct ixj_pvt *p;
int outdigit;
p = ast->pvt->pvt;
switch(digit) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
outdigit = digit - '0' + 1;
break;
case '*':
outdigit = 11;
break;
case '#':
outdigit = 12;
break;
default:
ast_log(LOG_WARNING, "Unknown digit '%c'\n", digit);
return -1;
}
ioctl(p->fd, IXJCTL_PLAY_TONE, digit);
return 0;
}
static int ixj_call(struct ast_channel *ast, char *dest, int timeout)
{
struct ixj_pvt *p;
p = ast->pvt->pvt;
if ((ast->state != AST_STATE_DOWN) && (ast->state != AST_STATE_RESERVED)) {
ast_log(LOG_WARNING, "ixj_call called on %s, neither down nor reserved\n", ast->name);
return -1;
}
/* When we call, it just works, really, there's no destination... Just
ring the phone and wait for someone to answer */
if (option_debug)
ast_log(LOG_DEBUG, "Ringing %s on %s (%d)\n", dest, ast->name, ast->fd);
ioctl(p->fd, IXJCTL_RING_START);
ast->state = AST_STATE_RINGING;
return 0;
}
static int ixj_hangup(struct ast_channel *ast)
{
struct ixj_pvt *p;
p = ast->pvt->pvt;
if (option_debug)
ast_log(LOG_DEBUG, "ixj_hangup(%s)\n", ast->name);
if (!ast->pvt->pvt) {
ast_log(LOG_WARNING, "Asked to hangup channel not connected\n");
return 0;
}
/* XXX Is there anything we can do to really hang up except stop recording? */
ast->state = AST_STATE_DOWN;
if (ioctl(p->fd, IXJCTL_REC_STOP))
ast_log(LOG_WARNING, "Failed to stop recording\n");
if (ioctl(p->fd, IXJCTL_PLAY_STOP))
ast_log(LOG_WARNING, "Failed to stop playing\n");
if (ioctl(p->fd, IXJCTL_RING_STOP))
ast_log(LOG_WARNING, "Failed to stop ringing\n");
if (ioctl(p->fd, IXJCTL_CPT_STOP))
ast_log(LOG_WARNING, "Failed to stop sounds\n");
/* If they're off hook, give a busy signal */
if (ioctl(p->fd, IXJCTL_HOOKSTATE))
ioctl(p->fd, IXJCTL_BUSY);
p->lastformat = -1;
p->lastinput = -1;
p->ministate = 0;
p->obuflen = 0;
p->dialtone = 0;
memset(p->ext, 0, sizeof(p->ext));
((struct ixj_pvt *)(ast->pvt->pvt))->owner = NULL;
pthread_mutex_lock(&usecnt_lock);
usecnt--;
if (usecnt < 0)
ast_log(LOG_WARNING, "Usecnt < 0???\n");
pthread_mutex_unlock(&usecnt_lock);
ast_update_use_count();
if (option_verbose > 2)
ast_verbose( VERBOSE_PREFIX_3 "Hungup '%s'\n", ast->name);
ast->pvt->pvt = NULL;
ast->state = AST_STATE_DOWN;
restart_monitor();
return 0;
}
static int ixj_setup(struct ast_channel *ast)
{
struct ixj_pvt *p;
p = ast->pvt->pvt;
ioctl(p->fd, IXJCTL_CPT_STOP);
/* Nothing to answering really, just start recording */
if (ast->format & AST_FORMAT_G723_1) {
/* Prefer g723 */
ioctl(p->fd, IXJCTL_REC_STOP);
if (p->lastinput != AST_FORMAT_G723_1) {
p->lastinput = AST_FORMAT_G723_1;
if (ioctl(p->fd, IXJCTL_REC_CODEC, G723_63)) {
ast_log(LOG_WARNING, "Failed to set codec to g723.1\n");
return -1;
}
}
} else if (ast->format & AST_FORMAT_SLINEAR) {
ioctl(p->fd, IXJCTL_REC_STOP);
if (p->lastinput != AST_FORMAT_SLINEAR) {
p->lastinput = AST_FORMAT_SLINEAR;
if (ioctl(p->fd, IXJCTL_REC_CODEC, LINEAR16)) {
ast_log(LOG_WARNING, "Failed to set codec to signed linear 16\n");
return -1;
}
}
} else {
ast_log(LOG_WARNING, "Can't do format %d\n", ast->format);
return -1;
}
if (ioctl(p->fd, IXJCTL_REC_START)) {
ast_log(LOG_WARNING, "Failed to start recording\n");
return -1;
}
return 0;
}
static int ixj_answer(struct ast_channel *ast)
{
ixj_setup(ast);
if (option_debug)
ast_log(LOG_DEBUG, "ixj_answer(%s)\n", ast->name);
ast->rings = 0;
ast->state = AST_STATE_UP;
return 0;
}
static char ixj_2digit(char c)
{
if (c == 12)
return '#';
else if (c == 11)
return '*';
else if ((c < 10) && (c >= 0))
return '0' + c - 1;
else
return '?';
}
static struct ast_frame *ixj_read(struct ast_channel *ast)
{
int res;
IXJ_EXCEPTION ixje;
struct ixj_pvt *p = ast->pvt->pvt;
char digit;
/* Some nice norms */
p->fr.datalen = 0;
p->fr.timelen = 0;
p->fr.data = NULL;
p->fr.src = type;
p->fr.offset = 0;
p->fr.mallocd=0;
ixje.bytes = ioctl(p->fd, IXJCTL_EXCEPTION);
if (ixje.bits.dtmf_ready) {
/* We've got a digit -- Just handle this nicely and easily */
digit = ioctl(p->fd, IXJCTL_GET_DTMF_ASCII);
p->fr.subclass = digit;
p->fr.frametype = AST_FRAME_DTMF;
return &p->fr;
}
if (ixje.bits.hookstate) {
res = ioctl(p->fd, IXJCTL_HOOKSTATE);
/* See if we've gone on hook, if so, notify by returning NULL */
if (!res)
return NULL;
else {
if (ast->state == AST_STATE_RINGING) {
/* They've picked up the phone */
p->fr.frametype = AST_FRAME_CONTROL;
p->fr.subclass = AST_CONTROL_ANSWER;
ixj_setup(ast);
ast->state = AST_STATE_UP;
return &p->fr;
} else
ast_log(LOG_WARNING, "Got off hook in weird state\n");
}
}
#if 0
if (ixje.bits.pstn_ring)
ast_verbose("Unit is ringing\n");
if (ixje.bits.caller_id) {
ast_verbose("We have caller ID: %s\n");
}
#endif
/* Try to read some data... */
CHECK_BLOCKING(ast);
res = read(p->fd, p->buf, IXJ_MAX_BUF);
ast->blocking = 0;
if (res < 0) {
#if 0
if (errno == EAGAIN) {
ast_log(LOG_WARNING, "Null frame received\n");
p->fr.frametype = AST_FRAME_NULL;
p->fr.subclass = 0;
return &p->fr;
}
#endif
ast_log(LOG_WARNING, "Error reading: %s\n", strerror(errno));
return NULL;
}
p->fr.data = p->buf;
p->fr.datalen = res;
p->fr.frametype = AST_FRAME_VOICE;
p->fr.subclass = p->lastinput;
p->fr.offset = AST_FRIENDLY_OFFSET;
return &p->fr;
}
static int ixj_write_buf(struct ixj_pvt *p, char *buf, int len, int frlen)
{
int res;
/* Store as much of the buffer as we can, then write fixed frames */
int space = sizeof(p->obuf) - p->obuflen;
/* Make sure we have enough buffer space to store the frame */
if (space < len)
len = space;
memcpy(p->obuf + p->obuflen, buf, len);
p->obuflen += len;
while(p->obuflen > frlen) {
#if 0
res = frlen;
ast_log(LOG_DEBUG, "Wrote %d bytes\n", res);
#else
res = write(p->fd, p->obuf, frlen);
#endif
if (res != frlen) {
if (res < 1) {
ast_log(LOG_WARNING, "Write failed: %s\n", strerror(errno));
return -1;
} else {
ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frlen);
}
}
p->obuflen -= frlen;
/* Move memory if necessary */
if (p->obuflen)
memmove(p->obuf, p->obuf + frlen, p->obuflen);
}
return len;
}
static int ixj_write(struct ast_channel *ast, struct ast_frame *frame)
{
struct ixj_pvt *p = ast->pvt->pvt;
int res;
int maxfr=0;
char *pos;
int sofar;
int expected;
/* Write a frame of (presumably voice) data */
if (frame->frametype != AST_FRAME_VOICE) {
ast_log(LOG_WARNING, "Don't know what to do with frame type '%d'\n", frame->frametype);
ast_frfree(frame);
return -1;
}
if (!(frame->subclass & (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR))) {
ast_log(LOG_WARNING, "Cannot handle frames in %d format\n", frame->subclass);
ast_frfree(frame);
return -1;
}
if (frame->subclass == AST_FORMAT_G723_1) {
if (p->lastformat != AST_FORMAT_G723_1) {
ioctl(p->fd, IXJCTL_PLAY_STOP);
if (ioctl(p->fd, IXJCTL_PLAY_CODEC, G723_63)) {
ast_log(LOG_WARNING, "Unable to set G723.1 mode\n");
return -1;
}
p->lastformat = AST_FORMAT_G723_1;
/* Reset output buffer */
p->obuflen = 0;
}
if (frame->datalen > 24) {
ast_log(LOG_WARNING, "Frame size too large for G.723.1 (%d bytes)\n", frame->datalen);
return -1;
}
maxfr = 24;
} else if (frame->subclass == AST_FORMAT_SLINEAR) {
if (p->lastformat != AST_FORMAT_SLINEAR) {
ioctl(p->fd, IXJCTL_PLAY_STOP);
if (ioctl(p->fd, IXJCTL_PLAY_CODEC, LINEAR16)) {
ast_log(LOG_WARNING, "Unable to set 16-bit linear mode\n");
return -1;
}
p->lastformat = AST_FORMAT_SLINEAR;
/* Reset output buffer */
p->obuflen = 0;
}
maxfr = 480;
}
if (ioctl(p->fd, IXJCTL_PLAY_START)) {
ast_log(LOG_WARNING, "Failed to start recording\n");
return -1;
}
/* If we get here, we have a voice frame of Appropriate data */
sofar = 0;
pos = frame->data;
while(sofar < frame->datalen) {
/* Write in no more than maxfr sized frames */
expected = frame->datalen - sofar;
if (maxfr < expected)
expected = maxfr;
/* XXX Internet Phone Jack does not handle the 4-byte VAD frame properly! XXX */
if (frame->datalen != 4) {
res = ixj_write_buf(p, pos, expected, maxfr);
if (res != expected) {
if (res < 0)
ast_log(LOG_WARNING, "Write returned error (%s)\n", strerror(errno));
else
ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frame->datalen);
return -1;
}
sofar += res;
pos += res;
} else
sofar += 4;
}
return 0;
}
static struct ast_channel *ixj_new(struct ixj_pvt *i, int state)
{
struct ast_channel *tmp;
tmp = ast_channel_alloc();
if (tmp) {
snprintf(tmp->name, sizeof(tmp->name), "PhoneJack/%s", i->dev + 5);
tmp->type = type;
tmp->fd = i->fd;
/* XXX Switching formats silently causes kernel panics XXX */
tmp->format = AST_FORMAT_G723_1 /* | AST_FORMAT_SLINEAR */;
tmp->state = state;
if (state == AST_STATE_RING)
tmp->rings = 1;
tmp->pvt->pvt = i;
tmp->pvt->send_digit = ixj_digit;
tmp->pvt->call = ixj_call;
tmp->pvt->hangup = ixj_hangup;
tmp->pvt->answer = ixj_answer;
tmp->pvt->read = ixj_read;
tmp->pvt->write = ixj_write;
strncpy(tmp->context, i->context, sizeof(tmp->context));
if (strlen(i->ext))
strncpy(tmp->exten, i->ext, sizeof(tmp->exten));
i->owner = tmp;
pthread_mutex_lock(&usecnt_lock);
usecnt++;
pthread_mutex_unlock(&usecnt_lock);
ast_update_use_count();
if (state != AST_STATE_DOWN) {
if (state == AST_STATE_RING)
ioctl(tmp->fd, IXJCTL_RINGBACK);
if (ast_pbx_start(tmp)) {
ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
ast_hangup(tmp);
}
}
} else
ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
return tmp;
}
static void ixj_mini_packet(struct ixj_pvt *i)
{
int res;
char buf[1024];
/* Ignore stuff we read... */
res = read(i->fd, buf, sizeof(buf));
if (res < 1) {
ast_log(LOG_WARNING, "Read returned %d\n", res);
return;
}
}
static void ixj_check_exception(struct ixj_pvt *i)
{
int offhook=0;
char digit[2] = {0 , 0};
IXJ_EXCEPTION ixje;
/* XXX Do something XXX */
#if 0
ast_log(LOG_DEBUG, "Exception!\n");
#endif
ixje.bytes = ioctl(i->fd, IXJCTL_EXCEPTION);
if (ixje.bits.dtmf_ready) {
digit[0] = ioctl(i->fd, IXJCTL_GET_DTMF_ASCII);
if (i->mode == MODE_DIALTONE) {
ioctl(i->fd, IXJCTL_PLAY_STOP);
ioctl(i->fd, IXJCTL_REC_STOP);
ioctl(i->fd, IXJCTL_CPT_STOP);
i->dialtone = 0;
if (strlen(i->ext) < AST_MAX_EXTENSION - 1)
strcat(i->ext, digit);
if (ast_exists_extension(NULL, i->context, i->ext, 1)) {
/* It's a valid extension in its context, get moving! */
ixj_new(i, AST_STATE_UP);
/* No need to restart monitor, we are the monitor */
if (i->owner) {
pthread_mutex_lock(&usecnt_lock);
usecnt--;
pthread_mutex_unlock(&usecnt_lock);
ast_update_use_count();
ixj_setup(i->owner);
}
} else if (ast_exists_extension(NULL, "default", i->ext, 1)) {
/* Check the default, too... */
/* XXX This should probably be justified better XXX */
strncpy(i->context, "default", sizeof(i->context));
ixj_new(i, AST_STATE_UP);
if (i->owner) {
pthread_mutex_lock(&usecnt_lock);
usecnt--;
pthread_mutex_unlock(&usecnt_lock);
ast_update_use_count();
ixj_setup(i->owner);
}
} else if ((strlen(i->ext) >= ast_pbx_longest_extension(i->context)) &&
(strlen(i->ext) >= ast_pbx_longest_extension("default"))) {
if (option_debug)
ast_log(LOG_DEBUG, "%s is too long\n", i->ext);
/* It's not a valid extension, give a busy signal */
ioctl(i->fd, IXJCTL_BUSY);
}
#if 0
ast_verbose("Extension is %s\n", i->ext);
#endif
}
}
if (ixje.bits.hookstate) {
offhook = ioctl(i->fd, IXJCTL_HOOKSTATE);
if (offhook) {
if (i->mode == MODE_IMMEDIATE) {
ixj_new(i, AST_STATE_RING);
} else if (i->mode == MODE_DIALTONE) {
pthread_mutex_lock(&usecnt_lock);
usecnt++;
pthread_mutex_unlock(&usecnt_lock);
ast_update_use_count();
/* Play the dialtone */
i->dialtone++;
ioctl(i->fd, IXJCTL_PLAY_STOP);
ioctl(i->fd, IXJCTL_PLAY_CODEC, ULAW);
ioctl(i->fd, IXJCTL_PLAY_START);
}
} else {
if (i->dialtone) {
pthread_mutex_lock(&usecnt_lock);
usecnt--;
pthread_mutex_unlock(&usecnt_lock);
ast_update_use_count();
}
memset(i->ext, 0, sizeof(i->ext));
ioctl(i->fd, IXJCTL_CPT_STOP);
ioctl(i->fd, IXJCTL_PLAY_STOP);
ioctl(i->fd, IXJCTL_REC_STOP);
i->dialtone = 0;
}
}
if (ixje.bits.pstn_ring)
ast_verbose("Unit is ringing\n");
if (ixje.bits.caller_id)
ast_verbose("We have caller ID\n");
}
static void *do_monitor(void *data)
{
fd_set rfds, efds;
int n, res;
struct ixj_pvt *i;
int tonepos = 0;
/* The tone we're playing this round */
struct timeval tv = {0,0};
int dotone;
/* This thread monitors all the frame relay interfaces which are not yet in use
(and thus do not have a separate thread) indefinitely */
/* From here on out, we die whenever asked */
if (pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL)) {
ast_log(LOG_WARNING, "Unable to set cancel type to asynchronous\n");
return NULL;
}
for(;;) {
/* Don't let anybody kill us right away. Nobody should lock the interface list
and wait for the monitor list, but the other way around is okay. */
if (pthread_mutex_lock(&monlock)) {
ast_log(LOG_ERROR, "Unable to grab monitor lock\n");
return NULL;
}
/* Lock the interface list */
if (pthread_mutex_lock(&iflock)) {
ast_log(LOG_ERROR, "Unable to grab interface lock\n");
pthread_mutex_unlock(&monlock);
return NULL;
}
/* Build the stuff we're going to select on, that is the socket of every
ixj_pvt that does not have an associated owner channel */
n = -1;
FD_ZERO(&rfds);
FD_ZERO(&efds);
i = iflist;
dotone = 0;
while(i) {
if (FD_ISSET(i->fd, &rfds))
ast_log(LOG_WARNING, "Descriptor %d appears twice (%s)?\n", i->fd, i->dev);
if (!i->owner) {
/* This needs to be watched, as it lacks an owner */
FD_SET(i->fd, &rfds);
FD_SET(i->fd, &efds);
if (i->fd > n)
n = i->fd;
if (i->dialtone) {
/* Remember we're going to have to come back and play
more dialtones */
if (!tv.tv_usec && !tv.tv_sec) {
/* If we're due for a dialtone, play one */
if (write(i->fd, DialTone + tonepos, 240) != 240)
ast_log(LOG_WARNING, "Dial tone write error\n");
}
dotone++;
}
}
i = i->next;
}
/* Okay, now that we know what to do, release the interface lock */
pthread_mutex_unlock(&iflock);
/* And from now on, we're okay to be killed, so release the monitor lock as well */
pthread_mutex_unlock(&monlock);
/* Wait indefinitely for something to happen */
if (dotone) {
/* If we're ready to recycle the time, set it to 30 ms */
tonepos += 240;
if (tonepos >= sizeof(DialTone))
tonepos = 0;
if (!tv.tv_usec && !tv.tv_sec) {
tv.tv_usec = 30000;
tv.tv_sec = 0;
}
res = select(n + 1, &rfds, NULL, &efds, &tv);
} else {
res = select(n + 1, &rfds, NULL, &efds, NULL);
tv.tv_usec = 0;
tv.tv_sec = 0;
tonepos = 0;
}
/* Okay, select has finished. Let's see what happened. */
if (res < 0) {
ast_log(LOG_WARNING, "select return %d: %s\n", res, strerror(errno));
continue;
}
/* If there are no fd's changed, just continue, it's probably time
to play some more dialtones */
if (!res)
continue;
/* Alright, lock the interface list again, and let's look and see what has
happened */
if (pthread_mutex_lock(&iflock)) {
ast_log(LOG_WARNING, "Unable to lock the interface list\n");
continue;
}
i = iflist;
while(i) {
if (FD_ISSET(i->fd, &rfds)) {
if (i->owner) {
ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d, %s)...\n", i->fd, i->dev);
continue;
}
ixj_mini_packet(i);
}
if (FD_ISSET(i->fd, &efds)) {
if (i->owner) {
ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d, %s)...\n", i->fd, i->dev);
continue;
}
ixj_check_exception(i);
}
i=i->next;
}
pthread_mutex_unlock(&iflock);
}
/* Never reached */
return NULL;
}
static int restart_monitor()
{
/* If we're supposed to be stopped -- stay stopped */
if (monitor_thread == -2)
return 0;
if (pthread_mutex_lock(&monlock)) {
ast_log(LOG_WARNING, "Unable to lock monitor\n");
return -1;
}
if (monitor_thread == pthread_self()) {
pthread_mutex_unlock(&monlock);
ast_log(LOG_WARNING, "Cannot kill myself\n");
return -1;
}
if (monitor_thread != -1) {
pthread_cancel(monitor_thread);
#if 0
pthread_join(monitor_thread, NULL);
#endif
}
/* Start a new monitor */
if (pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
pthread_mutex_unlock(&monlock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;
}
pthread_mutex_unlock(&monlock);
return 0;
}
static struct ixj_pvt *mkif(char *iface, int mode)
{
/* Make a ixj_pvt structure for this interface */
struct ixj_pvt *tmp;
#if 0
int flags;
#endif
tmp = malloc(sizeof(struct ixj_pvt));
if (tmp) {
tmp->fd = open(iface, O_RDWR);
if (tmp->fd < 0) {
ast_log(LOG_WARNING, "Unable to open '%s'\n", iface);
free(tmp);
return NULL;
}
ioctl(tmp->fd, IXJCTL_PLAY_STOP);
ioctl(tmp->fd, IXJCTL_REC_STOP);
ioctl(tmp->fd, IXJCTL_RING_STOP);
ioctl(tmp->fd, IXJCTL_CPT_STOP);
tmp->mode = mode;
#if 0
flags = fcntl(tmp->fd, F_GETFL);
fcntl(tmp->fd, F_SETFL, flags | O_NONBLOCK);
#endif
tmp->owner = NULL;
tmp->lastformat = -1;
tmp->lastinput = -1;
tmp->ministate = 0;
memset(tmp->ext, 0, sizeof(tmp->ext));
strncpy(tmp->dev, iface, sizeof(tmp->dev));
strncpy(tmp->context, context, sizeof(tmp->context));
tmp->next = NULL;
tmp->obuflen = 0;
tmp->dialtone = 0;
}
return tmp;
}
static struct ast_channel *ixj_request(char *type, int format, void *data)
{
int oldformat;
struct ixj_pvt *p;
struct ast_channel *tmp = NULL;
char *name = data;
oldformat = format;
format &= (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR);
if (!format) {
ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
return NULL;
}
/* Search for an unowned channel */
if (pthread_mutex_lock(&iflock)) {
ast_log(LOG_ERROR, "Unable to lock interface list???\n");
return NULL;
}
p = iflist;
while(p) {
if (!strcmp(name, p->dev + 5)) {
if (!p->owner) {
tmp = ixj_new(p, AST_STATE_DOWN);
break;
}
}
p = p->next;
}
pthread_mutex_unlock(&iflock);
restart_monitor();
return tmp;
}
int load_module()
{
struct ast_config *cfg;
struct ast_variable *v;
struct ixj_pvt *tmp;
int mode = MODE_IMMEDIATE;
cfg = ast_load(config);
/* We *must* have a config file otherwise stop immediately */
if (!cfg) {
ast_log(LOG_ERROR, "Unable to load config %s\n", config);
return -1;
}
if (pthread_mutex_lock(&iflock)) {
/* It's a little silly to lock it, but we mind as well just to be sure */
ast_log(LOG_ERROR, "Unable to lock interface list???\n");
return -1;
}
v = ast_variable_browse(cfg, "interfaces");
while(v) {
/* Create the interface list */
if (!strcasecmp(v->name, "device")) {
tmp = mkif(v->value, mode);
if (tmp) {
tmp->next = iflist;
iflist = tmp;
} else {
ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value);
ast_destroy(cfg);
pthread_mutex_unlock(&iflock);
unload_module();
return -1;
}
} else if (!strcasecmp(v->name, "mode")) {
if (!strncasecmp(v->value, "di", 2))
mode = MODE_DIALTONE;
else if (!strncasecmp(v->value, "im", 2))
mode = MODE_IMMEDIATE;
else
ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
} else if (!strcasecmp(v->name, "context")) {
strncpy(context, v->value, sizeof(context));
}
v = v->next;
}
pthread_mutex_unlock(&iflock);
/* Make sure we can register our Adtranixj channel type */
if (ast_channel_register(type, tdesc, AST_FORMAT_G723_1, ixj_request)) {
ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
ast_destroy(cfg);
unload_module();
return -1;
}
ast_destroy(cfg);
/* And start the monitor for the first time */
restart_monitor();
return 0;
}
int unload_module()
{
struct ixj_pvt *p, *pl;
/* First, take us out of the channel loop */
ast_channel_unregister(type);
if (!pthread_mutex_lock(&iflock)) {
/* Hangup all interfaces if they have an owner */
p = iflist;
while(p) {
if (p->owner)
ast_softhangup(p->owner);
p = p->next;
}
iflist = NULL;
pthread_mutex_unlock(&iflock);
} else {
ast_log(LOG_WARNING, "Unable to lock the monitor\n");
return -1;
}
if (!pthread_mutex_lock(&monlock)) {
if (monitor_thread > -1) {
pthread_cancel(monitor_thread);
pthread_join(monitor_thread, NULL);
}
monitor_thread = -2;
pthread_mutex_unlock(&monlock);
} else {
ast_log(LOG_WARNING, "Unable to lock the monitor\n");
return -1;
}
if (!pthread_mutex_lock(&iflock)) {
/* Destroy all the interfaces and free their memory */
p = iflist;
while(p) {
/* Close the socket, assuming it's real */
if (p->fd > -1)
close(p->fd);
pl = p;
p = p->next;
/* Free associated memory */
free(pl);
}
iflist = NULL;
pthread_mutex_unlock(&iflock);
} else {
ast_log(LOG_WARNING, "Unable to lock the monitor\n");
return -1;
}
return 0;
}
int usecount()
{
int res;
pthread_mutex_lock(&usecnt_lock);
res = usecnt;
pthread_mutex_unlock(&usecnt_lock);
return res;
}
char *description()
{
return desc;
}

19
configs/ixj.conf.sample
View File

@ -1,19 +0,0 @@
;
; Internet Phone Jack
;
; Configuration file
;
[interfaces]
;
; Select a mode, either the line jack provides dialtone, reads digits,
; then starts PBX with the given extension (dialtone mode), or
; immediately provides the PBX without reading any digits or providing
; any dialtone (this is the immediate mode, the default)
;
;mode=immediate
mode=dialtone
;
; List all devices we can use.
;
context=local
device=/dev/ixj0

102
frame.c
View File

@ -13,7 +13,9 @@
#include <asterisk/frame.h>
#include <asterisk/logger.h>
#include <asterisk/options.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
/*
@ -74,16 +76,106 @@ struct ast_frame *ast_frisolate(struct ast_frame *fr)
} else
out->src = fr->src;
if (!(fr->mallocd & AST_MALLOCD_DATA)) {
out->data = malloc(fr->datalen + fr->offset);
out->data += fr->offset;
out->offset = fr->offset;
out->datalen = fr->datalen;
memcpy(out->data, fr->data, fr->datalen);
out->data = malloc(fr->datalen + AST_FRIENDLY_OFFSET);
if (!out->data) {
free(out);
ast_log(LOG_WARNING, "Out of memory\n");
return NULL;
}
out->data += AST_FRIENDLY_OFFSET;
out->offset = AST_FRIENDLY_OFFSET;
out->datalen = fr->datalen;
memcpy(out->data, fr->data, fr->datalen);
}
out->mallocd = AST_MALLOCD_HDR | AST_MALLOCD_SRC | AST_MALLOCD_DATA;
return out;
}
struct ast_frame *ast_frdup(struct ast_frame *f)
{
struct ast_frame *ret;
int p;
p = f->mallocd;
f->mallocd = 0;
/* Make frisolate think this is a 100% static frame, and make a duplicate */
ret = ast_frisolate(f);
/* Restore its true malloc status */
f->mallocd = p;
return ret;
}
struct ast_frame *ast_fr_fdread(int fd)
{
char buf[4096];
int res;
struct ast_frame *f = (struct ast_frame *)buf;
/* Read a frame directly from there. They're always in the
right format. */
if (read(fd, buf, sizeof(struct ast_frame))
== sizeof(struct ast_frame)) {
/* read the frame header */
f->mallocd = 0;
/* Re-write data position */
f->data = buf + sizeof(struct ast_frame);
f->offset = 0;
/* Forget about being mallocd */
f->mallocd = 0;
/* Re-write the source */
f->src = __FUNCTION__;
if (f->datalen > sizeof(buf) - sizeof(struct ast_frame)) {
/* Really bad read */
ast_log(LOG_WARNING, "Strange read (%d bytes)\n", f->datalen);
return NULL;
}
if (f->datalen) {
if ((res = read(fd, f->data, f->datalen)) != f->datalen) {
/* Bad read */
ast_log(LOG_WARNING, "How very strange, expected %d, got %d\n", f->datalen, res);
return NULL;
}
}
return ast_frisolate(f);
} else if (option_debug)
ast_log(LOG_DEBUG, "NULL or invalid header\n");
/* Null if there was an error */
return NULL;
}
/* Some convenient routines for sending frames to/from stream or datagram
sockets, pipes, etc (maybe even files) */
int ast_fr_fdwrite(int fd, struct ast_frame *frame)
{
/* Write the frame exactly */
if (write(fd, frame, sizeof(struct ast_frame)) != sizeof(struct ast_frame)) {
ast_log(LOG_WARNING, "Write error\n");
return -1;
}
if (write(fd, frame->data, frame->datalen) != frame->datalen) {
ast_log(LOG_WARNING, "Write error\n");
return -1;
}
return 0;
}
int ast_getformatbyname(char *name)
{
if (!strcasecmp(name, "g723.1"))
return AST_FORMAT_G723_1;
else if (!strcasecmp(name, "gsm"))
return AST_FORMAT_GSM;
else if (!strcasecmp(name, "ulaw"))
return AST_FORMAT_ULAW;
else if (!strcasecmp(name, "alaw"))
return AST_FORMAT_ALAW;
else if (!strcasecmp(name, "mp3"))
return AST_FORMAT_MP3;
else if (!strcasecmp(name, "slinear"))
return AST_FORMAT_SLINEAR;
else if (!strcasecmp(name, "lpc10"))
return AST_FORMAT_LPC10;
else if (!strcasecmp(name, "all"))
return 0x7FFFFFFF;
return 0;
}

110
pbx.c
View File

@ -82,6 +82,8 @@ struct ast_app {
struct ast_app *next;
};
static int pbx_builtin_prefix(struct ast_channel *, void *);
static int pbx_builtin_stripmsd(struct ast_channel *, void *);
static int pbx_builtin_answer(struct ast_channel *, void *);
static int pbx_builtin_goto(struct ast_channel *, void *);
static int pbx_builtin_hangup(struct ast_channel *, void *);
@ -104,6 +106,8 @@ static struct pbx_builtin {
{ "ResponseTimeout", pbx_builtin_rtimeout },
{ "BackGround", pbx_builtin_background },
{ "Wait", pbx_builtin_wait },
{ "StripMSD", pbx_builtin_stripmsd },
{ "Prefix", pbx_builtin_prefix },
};
/* Lock for the application list */
@ -155,6 +159,7 @@ static int pbx_exec(struct ast_channel *c, /* Channel */
#define HELPER_EXISTS 0
#define HELPER_SPAWN 1
#define HELPER_EXEC 2
#define HELPER_CANMATCH 3
static struct ast_app *pbx_findapp(char *app)
{
@ -213,6 +218,42 @@ static int extension_match(char *pattern, char *data)
return match;
}
static int extension_close(char *pattern, char *data)
{
int match;
/* If "data" is longer, it can'be a subset of pattern */
if (strlen(pattern) < strlen(data))
return 0;
if (!strncasecmp(pattern, data, strlen(data))) {
return 1;
}
/* All patterns begin with _ */
if (pattern[0] != '_')
return 0;
/* Start optimistic */
match=1;
pattern++;
while(match && *data && *pattern) {
switch(toupper(*pattern)) {
case 'N':
if ((*data < '2') || (*data > '9'))
match=0;
break;
case 'X':
if ((*data < '0') || (*data > '9'))
match = 0;
break;
default:
if (*data != *pattern)
match =0;
}
data++;
pattern++;
}
return match;
}
static int pbx_extension_helper(struct ast_channel *c, char *context, char *exten, int priority, int action)
{
struct ast_context *tmp;
@ -222,7 +263,7 @@ static int pbx_extension_helper(struct ast_channel *c, char *context, char *exte
int res;
if (pthread_mutex_lock(&conlock)) {
ast_log(LOG_WARNING, "Unable to obtain lock\n");
if (action == HELPER_EXISTS)
if ((action == HELPER_EXISTS) || (action == HELPER_CANMATCH))
return 0;
else
return -1;
@ -230,27 +271,32 @@ static int pbx_extension_helper(struct ast_channel *c, char *context, char *exte
tmp = contexts;
while(tmp) {
if (!strcasecmp(tmp->name, context)) {
#if 0
/* By locking tmp, not only can the state of its entries not
change, but it cannot be destroyed either. */
pthread_mutex_lock(&tmp->lock);
/* But we can relieve the conlock, as tmp will not change */
pthread_mutex_unlock(&conlock);
#endif
e = tmp->root;
while(e) {
if (extension_match(e->exten, exten)) {
if (extension_match(e->exten, exten) ||
((action == HELPER_CANMATCH) && extension_close(e->exten, exten))) {
while(e) {
if (e->priority == priority) {
pthread_mutex_unlock(&tmp->lock);
/* We have a winner! Maybe there are some races
in here though. XXX */
switch(action) {
case HELPER_CANMATCH:
pthread_mutex_unlock(&conlock);
return -1;
case HELPER_EXISTS:
pthread_mutex_unlock(&conlock);
return -1;
case HELPER_SPAWN:
newstack++;
/* Fall through */
case HELPER_EXEC:
app = pbx_findapp(e->app);
pthread_mutex_unlock(&conlock);
if (app) {
strncpy(c->context, context, sizeof(c->context));
strncpy(c->exten, exten, sizeof(c->exten));
@ -265,6 +311,7 @@ static int pbx_extension_helper(struct ast_channel *c, char *context, char *exte
res = pbx_exec(c, app->execute, e->data, newstack);
c->appl = NULL;
c->data = NULL;
pthread_mutex_unlock(&conlock);
return res;
} else {
ast_log(LOG_WARNING, "No application '%s' for extension (%s, %s, %d)\n", e->app, context, exten, priority);
@ -277,20 +324,25 @@ static int pbx_extension_helper(struct ast_channel *c, char *context, char *exte
e = e->peer;
}
pthread_mutex_unlock(&tmp->lock);
if (action != HELPER_EXISTS) {
if ((action != HELPER_EXISTS) && (action != HELPER_CANMATCH)) {
ast_log(LOG_WARNING, "No such priority '%d' in '%s' in '%s'\n", priority, exten, context);
pthread_mutex_unlock(&conlock);
return -1;
} else
} else {
pthread_mutex_unlock(&conlock);
return 0;
}
}
e = e->next;
}
pthread_mutex_unlock(&tmp->lock);
if (action != HELPER_EXISTS) {
if ((action != HELPER_EXISTS) && (action != HELPER_CANMATCH)) {
pthread_mutex_unlock(&conlock);
ast_log(LOG_WARNING, "No such extension '%s' in '%s'\n", exten, context);
return -1;
} else
} else {
pthread_mutex_unlock(&conlock);
return 0;
}
}
tmp = tmp->next;
}
@ -338,6 +390,11 @@ int ast_exists_extension(struct ast_channel *c, char *context, char *exten, int
return pbx_extension_helper(c, context, exten, priority, HELPER_EXISTS);
}
int ast_canmatch_extension(struct ast_channel *c, char *context, char *exten, int priority)
{
return pbx_extension_helper(c, context, exten, priority, HELPER_CANMATCH);
}
int ast_spawn_extension(struct ast_channel *c, char *context, char *exten, int priority)
{
return pbx_extension_helper(c, context, exten, priority, HELPER_SPAWN);
@ -382,14 +439,13 @@ static void *pbx_thread(void *data)
goto out;
}
/* If we're playing something in the background, wait for it to finish or for a digit */
if (c->stream) {
if (c->stream || (c->trans && c->trans->stream)) {
digit = ast_waitstream(c, AST_DIGIT_ANY);
ast_stopstream(c);
/* Hang up if something goes wrong */
if (digit < 0)
goto out;
else if (digit) {
ast_stopstream(c);
exten[pos++] = digit;
break;
}
@ -402,8 +458,8 @@ static void *pbx_thread(void *data)
waittime = c->pbx->dtimeout;
else
waittime = c->pbx->rtimeout;
while(!ast_exists_extension(c, c->context, exten, 1) && (
strlen(exten) < ast_pbx_longest_extension(c->context))) {
while(!ast_exists_extension(c, c->context, exten, 1) &&
ast_canmatch_extension(c, c->context, exten, 1)) {
/* As long as we're willing to wait, and as long as it's not defined,
keep reading digits until we can't possibly get a right answer anymore. */
digit = ast_waitfordigit(c, waittime * 1000);
@ -770,6 +826,32 @@ int pbx_builtin_hangup(struct ast_channel *chan, void *data)
return -1;
}
int pbx_builtin_stripmsd(struct ast_channel *chan, void *data)
{
char newexten[AST_MAX_EXTENSION] = "";
if (!data || !atoi(data)) {
ast_log(LOG_DEBUG, "Ignoring, since number of digits to strip is 0\n");
return 0;
}
if (strlen(chan->exten) > atoi(data)) {
strncpy(newexten, chan->exten + atoi(data), sizeof(newexten));
}
strncpy(chan->exten, newexten, sizeof(chan->exten));
return 0;
}
int pbx_builtin_prefix(struct ast_channel *chan, void *data)
{
char newexten[AST_MAX_EXTENSION] = "";
if (!data || !strlen(data)) {
ast_log(LOG_DEBUG, "Ignoring, since there is no prefix to add\n");
return 0;
}
snprintf(newexten, sizeof(newexten), "%s%s", (char *)data, chan->exten);
strncpy(chan->exten, newexten, sizeof(chan->exten));
return 0;
}
int pbx_builtin_wait(struct ast_channel *chan, void *data)
{
/* Wait for "n" seconds */

BIN
sounds/demo-moreinfo.gsm Executable file
View File

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