diff options
Diffstat (limited to 'channels/chan_ixj.c')
| -rwxr-xr-x | channels/chan_ixj.c | 919 |
1 files changed, 0 insertions, 919 deletions
diff --git a/channels/chan_ixj.c b/channels/chan_ixj.c deleted file mode 100755 index c8cdb91dd..000000000 --- a/channels/chan_ixj.c +++ /dev/null @@ -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; -} - |