Version 0.1.1 from FTP
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@140 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
parent
509765aef5
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8
Makefile
8
Makefile
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@ -3,7 +3,7 @@
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#
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# Top level Makefile
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#
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# Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
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# Copyright (C) 1999, Mark Spencer
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#
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# Mark Spencer <markster@linux-support.net>
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#
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@ -18,11 +18,11 @@ MODULES_DIR=/usr/lib/asterisk/modules
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DEBUG=-g #-pg
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INCLUDE=-Iinclude -I../include
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CFLAGS=-Wall -Werror -O6 $(DEBUG) $(INCLUDE) -D_REENTRANT
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CFLAGS=-pipe -Wall -Werror -Wmissing-prototypes -Wmissing-declarations -O6 $(DEBUG) $(INCLUDE) -D_REENTRANT
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CFLAGS+=$(shell if $(CC) -march=i686 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=i686"; fi)
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SUBDIRS=channels pbx apps codecs formats
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LIBS=-ldl -lpthread #-lefence
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OBJS=io.o sched.o logger.o frame.o loader.o config.o channel.o translate.o file.o say.o pbx.o asterisk.o
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LIBS=-ldl -lpthread -lreadline # -lefence
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OBJS=io.o sched.o logger.o frame.o loader.o config.o channel.o translate.o file.o say.o pbx.o cli.o asterisk.o
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CC=gcc
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INSTALL=install
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@ -0,0 +1,813 @@
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/*
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* Asterisk -- A telephony toolkit for Linux.
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*
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* A/Open ITU-56/2 Voice Modem Driver (Rockwell, IS-101, and others)
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*
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* Copyright (C) 1999, Mark Spencer
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*
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* Mark Spencer <markster@linux-support.net>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*/
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#include <stdio.h>
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#include <pthread.h>
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#include <string.h>
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#include <asterisk/channel.h>
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#include <asterisk/channel_pvt.h>
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#include <asterisk/config.h>
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#include <asterisk/logger.h>
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#include <asterisk/module.h>
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#include <asterisk/pbx.h>
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#include <asterisk/options.h>
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#include <asterisk/vmodem.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <arpa/inet.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/termios.h>
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#include <sys/signal.h>
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#include <ctype.h>
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/* Up to 10 seconds for an echo to arrive */
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#define ECHO_TIMEOUT 10
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static char *desc = "Generic Voice Modem Driver";
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static char *tdesc = "Generic Voice Modem Channel Driver";
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static char *type = "Modem";
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static char *config = "modem.conf";
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static char dialtype = 'T';
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static int gmode = MODEM_MODE_IMMEDIATE;
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/* Default modem type */
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static char mtype[80] = "autodetect";
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/* Default context for incoming calls */
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static char context[AST_MAX_EXTENSION]= "default";
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/* Initialization String */
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static char initstr[AST_MAX_INIT_STR] = "ATE1Q0";
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static int usecnt =0;
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static int baudrate = 115200;
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static int stripmsd = 0;
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static pthread_mutex_t usecnt_lock = PTHREAD_MUTEX_INITIALIZER;
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/* Protect the interface list (of ast_modem_pvt's) */
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static pthread_mutex_t iflock = PTHREAD_MUTEX_INITIALIZER;
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/* Protect the monitoring thread, so only one process can kill or start it, and not
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when it's doing something critical. */
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static pthread_mutex_t monlock = PTHREAD_MUTEX_INITIALIZER;
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/* This is the thread for the monitor which checks for input on the channels
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which are not currently in use. */
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static pthread_t monitor_thread = -1;
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static int restart_monitor(void);
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/* The private structures of the Phone Jack channels are linked for
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selecting outgoing channels */
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static struct ast_modem_pvt *iflist = NULL;
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static int modem_digit(struct ast_channel *ast, char digit)
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{
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struct ast_modem_pvt *p;
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p = ast->pvt->pvt;
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if (p->mc->dialdigit)
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return p->mc->dialdigit(p, digit);
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else ast_log(LOG_DEBUG, "Channel %s lacks digit dialing\n");
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return 0;
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}
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static struct ast_modem_driver *drivers = NULL;
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static struct ast_frame *modem_read(struct ast_channel *);
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static struct ast_modem_driver *find_capability(char *ident)
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{
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struct ast_modem_driver *mc;
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int x;
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mc = drivers;
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while(mc) {
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for (x=0;mc->idents[x];x++) {
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if (!strcmp(ident, mc->idents[x]))
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break;
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}
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if (mc->idents[x])
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break;
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mc = mc->next;
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}
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if (mc) {
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if (mc->incusecnt)
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mc->incusecnt();
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}
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return mc;
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}
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static struct ast_modem_driver *find_driver(char *drv)
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{
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struct ast_modem_driver *mc;
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mc = drivers;
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while(mc) {
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if (!strcasecmp(mc->name, drv))
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break;
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mc = mc->next;
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}
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if (mc) {
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if (mc->incusecnt)
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mc->incusecnt();
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}
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return mc;
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}
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int ast_register_modem_driver(struct ast_modem_driver *mc)
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{
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mc->next = drivers;
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drivers = mc;
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return 0;
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}
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int ast_unregister_modem_driver(struct ast_modem_driver *mc)
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{
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struct ast_modem_driver *last = NULL, *cur;
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cur = drivers;
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while(cur) {
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if (cur == mc) {
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if (last)
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last->next = mc->next;
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else
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drivers = mc->next;
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return 0;
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}
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cur = cur->next;
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}
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return -1;
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}
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static int modem_call(struct ast_channel *ast, char *idest, int timeout)
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{
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struct ast_modem_pvt *p;
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int ms = timeout;
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char rdest[80], *where;
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strncpy(rdest, idest, sizeof(rdest));
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strtok(rdest, ":");
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where = strtok(NULL, ":");
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if (!where) {
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ast_log(LOG_WARNING, "Destination %s requres a real destination (device:destination)\n", idest);
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return -1;
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}
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p = ast->pvt->pvt;
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if ((ast->state != AST_STATE_DOWN) && (ast->state != AST_STATE_RESERVED)) {
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ast_log(LOG_WARNING, "modem_call called on %s, neither down nor reserved\n", ast->name);
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return -1;
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}
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if (!strcasecmp(where, "handset")) {
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if (p->mc->setdev)
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if (p->mc->setdev(p, MODEM_DEV_HANDSET))
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return -1;
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/* Should be immediately up */
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ast->state = AST_STATE_UP;
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} else {
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if (p->mc->setdev)
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if (p->mc->setdev(p, MODEM_DEV_TELCO_SPK))
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return -1;
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if (p->mc->dial)
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p->mc->dial(p, where + p->stripmsd);
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ast->state = AST_STATE_DIALING;
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while((ast->state != AST_STATE_UP) && (ms > 0)) {
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ms = ast_waitfor(ast, ms);
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/* Just read packets and watch what happens */
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if (ms > 0) {
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if (!modem_read(ast))
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return -1;
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}
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}
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if (ms < 0)
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return -1;
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}
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return 0;
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}
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int ast_modem_send(struct ast_modem_pvt *p, char *cmd, int len)
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{
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int res;
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if (!len) {
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fprintf(p->f, "%s\r\n", cmd);
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res = ast_modem_expect(p, cmd, ECHO_TIMEOUT);
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if (res) {
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ast_log(LOG_WARNING, "Unexpected reply %s\n", p->response);
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return -1;
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}
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return 0;
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} else {
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if (fwrite(cmd, 1, len, p->f) < len)
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return -1;
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return 0;
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}
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}
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int ast_modem_read_response(struct ast_modem_pvt *p, int timeout)
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{
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int res = -1;
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timeout *= 1000;
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strncpy(p->response, "(No Response)", sizeof(p->response));
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do {
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res = ast_waitfor_n_fd(&p->fd, 1, &timeout);
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if (res < 0) {
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return -1;
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}
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/* Read a response */
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fgets(p->response, sizeof(p->response), p->f);
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return 0;
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} while(timeout > 0);
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return -1;
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}
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int ast_modem_expect(struct ast_modem_pvt *p, char *result, int timeout)
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{
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int res = -1;
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timeout *= 1000;
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strncpy(p->response, "(No Response)", sizeof(p->response));
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do {
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res = ast_waitfor_n_fd(&p->fd, 1, &timeout);
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if (res < 0) {
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return -1;
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}
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/* Read a response */
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fgets(p->response, sizeof(p->response), p->f);
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#if 0
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fprintf(stderr, "Modem said: %s", p->response);
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#endif
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if (!strncasecmp(p->response, result, strlen(result)))
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return 0;
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} while(timeout > 0);
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return -1;
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}
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void ast_modem_trim(char *s)
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{
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int x;
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x = strlen(s) - 1;
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while(x >= 0) {
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if ((s[x] != '\r') && (s[x] != '\n') && (s[x] != ' '))
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break;
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s[x] = '\0';
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x--;
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}
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}
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static int modem_setup(struct ast_modem_pvt *p, int baudrate)
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{
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/* Make sure there's a modem there and that it's in a reasonable
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mode. Set the baud rate, etc. */
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char identity[256];
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char *ident = NULL;
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if (option_debug)
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ast_log(LOG_DEBUG, "Setting up modem %s\n", p->dev);
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if (ast_modem_send(p, "\r\n", 2)) {
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ast_log(LOG_WARNING, "Failed to send enter?\n");
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return -1;
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}
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/* Read any outstanding stuff */
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while(!ast_modem_read_response(p, 0));
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if (ast_modem_send(p, "ATZ", 0)) {
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ast_log(LOG_WARNING, "Modem not responding on %s\n", p->dev);
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return -1;
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}
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if (ast_modem_expect(p, "OK", ECHO_TIMEOUT)) {
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ast_log(LOG_WARNING, "Modem reset failed: %s\n", p->response);
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return -1;
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}
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if (ast_modem_send(p, p->initstr, 0)) {
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ast_log(LOG_WARNING, "Modem not responding on %s\n", p->dev);
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return -1;
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}
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if (ast_modem_expect(p, "OK", ECHO_TIMEOUT)) {
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ast_log(LOG_WARNING, "Modem initialization failed: %s\n", p->response);
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return -1;
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}
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if (ast_modem_send(p, "ATI3", 0)) {
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ast_log(LOG_WARNING, "Modem not responding on %s\n", p->dev);
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return -1;
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}
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if (ast_modem_read_response(p, ECHO_TIMEOUT)) {
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ast_log(LOG_WARNING, "Modem did not provide identification\n");
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return -1;
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}
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strncpy(identity, p->response, sizeof(identity));
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ast_modem_trim(identity);
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if (ast_modem_expect(p, "OK", ECHO_TIMEOUT)) {
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ast_log(LOG_WARNING, "Modem did not provide identification\n");
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return -1;
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}
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if (!strcasecmp(mtype, "autodetect")) {
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p->mc = find_capability(identity);
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if (!p->mc) {
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ast_log(LOG_WARNING, "Unable to autodetect modem. You'll need to specify a driver in modem.conf. Please report modem identification (%s) and which driver works to markster@linux-support.net.\n", identity);
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return -1;
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}
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} else {
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p->mc = find_driver(mtype);
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if (!p->mc) {
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ast_log(LOG_WARNING, "No driver for modem type '%s'\n", mtype);
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return -1;
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}
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}
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if (p->mc->init) {
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if (p->mc->init(p)) {
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ast_log(LOG_WARNING, "Modem Initialization Failed on '%s', driver %s.\n", p->dev, p->mc->name);
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p->mc->decusecnt();
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return -1;
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}
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}
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if (option_verbose > 2) {
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ast_verbose(VERBOSE_PREFIX_3 "Configured modem %s with driver %s (%s)\n", p->dev, p->mc->name, p->mc->identify ? (ident = p->mc->identify(p)) : "No identification");
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}
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if (ident)
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free(ident);
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return 0;
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}
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static int modem_hangup(struct ast_channel *ast)
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{
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struct ast_modem_pvt *p;
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ast_log(LOG_DEBUG, "modem_hangup(%s)\n", ast->name);
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p = ast->pvt->pvt;
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/* Hang up */
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if (p->mc->hangup)
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p->mc->hangup(p);
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/* Re-initialize */
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if (p->mc->init)
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p->mc->init(p);
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ast->state = AST_STATE_DOWN;
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memset(p->cid, 0, sizeof(p->cid));
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((struct ast_modem_pvt *)(ast->pvt->pvt))->owner = NULL;
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pthread_mutex_lock(&usecnt_lock);
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usecnt--;
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if (usecnt < 0)
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ast_log(LOG_WARNING, "Usecnt < 0???\n");
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pthread_mutex_unlock(&usecnt_lock);
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ast_update_use_count();
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if (option_verbose > 2)
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ast_verbose( VERBOSE_PREFIX_3 "Hungup '%s'\n", ast->name);
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ast->pvt->pvt = NULL;
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ast->state = AST_STATE_DOWN;
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restart_monitor();
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return 0;
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}
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static int modem_answer(struct ast_channel *ast)
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{
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struct ast_modem_pvt *p;
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int res=0;
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ast_log(LOG_DEBUG, "modem_hangup(%s)\n", ast->name);
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p = ast->pvt->pvt;
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if (p->mc->answer) {
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res = p->mc->answer(p);
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}
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if (!res) {
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ast->rings = 0;
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ast->state = AST_STATE_UP;
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}
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return res;
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}
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static char modem_2digit(char c)
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{
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if (c == 12)
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return '#';
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else if (c == 11)
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return '*';
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else if ((c < 10) && (c >= 0))
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return '0' + c - 1;
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else
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return '?';
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}
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static struct ast_frame *modem_read(struct ast_channel *ast)
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{
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struct ast_modem_pvt *p = ast->pvt->pvt;
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struct ast_frame *fr=NULL;
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if (p->mc->read)
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fr = p->mc->read(p);
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return fr;
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}
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static int modem_write(struct ast_channel *ast, struct ast_frame *frame)
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{
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int res=0;
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struct ast_modem_pvt *p = ast->pvt->pvt;
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if (p->mc->write)
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res = p->mc->write(p, frame);
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return 0;
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}
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struct ast_channel *ast_modem_new(struct ast_modem_pvt *i, int state)
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{
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struct ast_channel *tmp;
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tmp = ast_channel_alloc();
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||||
if (tmp) {
|
||||
snprintf(tmp->name, sizeof(tmp->name), "Modem[%s]/%s", i->mc->name, i->dev + 5);
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||||
tmp->type = type;
|
||||
tmp->fd = i->fd;
|
||||
/* XXX Switching formats silently causes kernel panics XXX */
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||||
tmp->format = i->mc->formats;
|
||||
tmp->state = state;
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||||
if (state == AST_STATE_RING)
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||||
tmp->rings = 1;
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tmp->pvt->pvt = i;
|
||||
tmp->pvt->send_digit = modem_digit;
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||||
tmp->pvt->call = modem_call;
|
||||
tmp->pvt->hangup = modem_hangup;
|
||||
tmp->pvt->answer = modem_answer;
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||||
tmp->pvt->read = modem_read;
|
||||
tmp->pvt->write = modem_write;
|
||||
strncpy(tmp->context, i->context, sizeof(tmp->context));
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||||
if (strlen(i->cid))
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||||
strncpy(tmp->callerid, i->cid, sizeof(tmp->callerid));
|
||||
i->owner = tmp;
|
||||
pthread_mutex_lock(&usecnt_lock);
|
||||
usecnt++;
|
||||
pthread_mutex_unlock(&usecnt_lock);
|
||||
ast_update_use_count();
|
||||
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);
|
||||
}
|
||||
}
|
||||
} else
|
||||
ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
|
||||
return tmp;
|
||||
}
|
||||
|
||||
static void modem_mini_packet(struct ast_modem_pvt *i)
|
||||
{
|
||||
struct ast_frame *fr;
|
||||
fr = i->mc->read(i);
|
||||
}
|
||||
|
||||
static void *do_monitor(void *data)
|
||||
{
|
||||
fd_set rfds, efds;
|
||||
int n, res;
|
||||
struct ast_modem_pvt *i;
|
||||
/* 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 0
|
||||
if (pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL)) {
|
||||
ast_log(LOG_WARNING, "Unable to set cancel type to asynchronous\n");
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
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
|
||||
ast_modem_pvt that does not have an associated owner channel */
|
||||
n = -1;
|
||||
FD_ZERO(&rfds);
|
||||
FD_ZERO(&efds);
|
||||
i = iflist;
|
||||
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;
|
||||
}
|
||||
|
||||
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);
|
||||
#if 0
|
||||
ast_log(LOG_DEBUG, "In monitor, n=%d, pid=%d\n", n, getpid());
|
||||
#endif
|
||||
/* Wait indefinitely for something to happen */
|
||||
pthread_testcancel();
|
||||
res = select(n + 1, &rfds, NULL, &efds, NULL);
|
||||
pthread_testcancel();
|
||||
/* Okay, select has finished. Let's see what happened. */
|
||||
if (res < 1) {
|
||||
ast_log(LOG_WARNING, "select return %d: %s\n", res, strerror(errno));
|
||||
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) || 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);
|
||||
i = i->next;
|
||||
continue;
|
||||
}
|
||||
modem_mini_packet(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);
|
||||
/* Nudge it a little, as it's probably stuck in select */
|
||||
pthread_kill(monitor_thread, SIGURG);
|
||||
pthread_join(monitor_thread, NULL);
|
||||
}
|
||||
/* 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 ast_modem_pvt *mkif(char *iface)
|
||||
{
|
||||
/* Make a ast_modem_pvt structure for this interface */
|
||||
struct ast_modem_pvt *tmp;
|
||||
#if 0
|
||||
int flags;
|
||||
#endif
|
||||
|
||||
tmp = malloc(sizeof(struct ast_modem_pvt));
|
||||
if (tmp) {
|
||||
tmp->fd = open(iface, O_RDWR | O_NONBLOCK);
|
||||
if (tmp->fd < 0) {
|
||||
ast_log(LOG_WARNING, "Unable to open '%s'\n", iface);
|
||||
free(tmp);
|
||||
return NULL;
|
||||
}
|
||||
tmp->f = fdopen(tmp->fd, "w+");
|
||||
/* Disable buffering */
|
||||
setvbuf(tmp->f, NULL, _IONBF,0);
|
||||
if (tmp->f < 0) {
|
||||
ast_log(LOG_WARNING, "Unable to fdopen '%s'\n", iface);
|
||||
free(tmp);
|
||||
return NULL;
|
||||
}
|
||||
#if 0
|
||||
flags = fcntl(tmp->fd, F_GETFL);
|
||||
fcntl(tmp->fd, F_SETFL, flags | O_NONBLOCK);
|
||||
#endif
|
||||
tmp->owner = NULL;
|
||||
tmp->ministate = 0;
|
||||
tmp->stripmsd = stripmsd;
|
||||
tmp->dialtype = dialtype;
|
||||
tmp->mode = gmode;
|
||||
memset(tmp->cid, 0, sizeof(tmp->cid));
|
||||
strncpy(tmp->dev, iface, sizeof(tmp->dev));
|
||||
strncpy(tmp->context, context, sizeof(tmp->context));
|
||||
strncpy(tmp->initstr, initstr, sizeof(tmp->initstr));
|
||||
tmp->next = NULL;
|
||||
tmp->obuflen = 0;
|
||||
|
||||
if (modem_setup(tmp, baudrate) < 0) {
|
||||
ast_log(LOG_WARNING, "Unable to configure modem '%s'\n", iface);
|
||||
free(tmp);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
return tmp;
|
||||
}
|
||||
|
||||
static struct ast_channel *modem_request(char *type, int format, void *data)
|
||||
{
|
||||
int oldformat;
|
||||
struct ast_modem_pvt *p;
|
||||
struct ast_channel *tmp = NULL;
|
||||
char dev[80];
|
||||
strncpy(dev, (char *)data, sizeof(dev));
|
||||
strtok(dev, ":");
|
||||
oldformat = format;
|
||||
/* 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(dev, p->dev + 5)) {
|
||||
if (p->mc->formats & format) {
|
||||
if (!p->owner) {
|
||||
tmp = ast_modem_new(p, AST_STATE_DOWN);
|
||||
restart_monitor();
|
||||
break;
|
||||
} else
|
||||
ast_log(LOG_WARNING, "Device '%s' is busy\n", p->dev);
|
||||
} else
|
||||
ast_log(LOG_WARNING, "Asked for a format %d line on %s\n", format, p->dev);
|
||||
break;
|
||||
}
|
||||
p = p->next;
|
||||
}
|
||||
if (!p)
|
||||
ast_log(LOG_WARNING, "Requested device '%s' does not exist\n", p->dev);
|
||||
|
||||
pthread_mutex_unlock(&iflock);
|
||||
return tmp;
|
||||
}
|
||||
|
||||
int load_module()
|
||||
{
|
||||
struct ast_config *cfg;
|
||||
struct ast_variable *v;
|
||||
struct ast_modem_pvt *tmp;
|
||||
char driver[80];
|
||||
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);
|
||||
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();
|
||||
pthread_mutex_unlock(&iflock);
|
||||
return -1;
|
||||
}
|
||||
} else if (!strcasecmp(v->name, "driver")) {
|
||||
snprintf(driver, sizeof(driver), "chan_modem_%s.so", v->value);
|
||||
if (option_verbose > 1)
|
||||
ast_verbose(VERBOSE_PREFIX_2 "Loading modem driver %s", driver);
|
||||
|
||||
if (ast_load_resource(driver)) {
|
||||
ast_log(LOG_ERROR, "Failed to laod driver %s\n", driver);
|
||||
ast_destroy(cfg);
|
||||
unload_module();
|
||||
pthread_mutex_unlock(&iflock);
|
||||
return -1;
|
||||
}
|
||||
} else if (!strcasecmp(v->name, "mode")) {
|
||||
if (!strncasecmp(v->value, "ri", 2))
|
||||
gmode = MODEM_MODE_WAIT_RING;
|
||||
else if (!strncasecmp(v->value, "im", 2))
|
||||
gmode = MODEM_MODE_IMMEDIATE;
|
||||
else if (!strncasecmp(v->value, "an", 2))
|
||||
gmode = MODEM_MODE_WAIT_ANSWER;
|
||||
else
|
||||
ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
|
||||
} else if (!strcasecmp(v->name, "stripmsd")) {
|
||||
stripmsd = atoi(v->value);
|
||||
} else if (!strcasecmp(v->name, "type")) {
|
||||
strncpy(mtype, v->value, sizeof(mtype));
|
||||
} else if (!strcasecmp(v->name, "initstr")) {
|
||||
strncpy(initstr, v->value, sizeof(initstr));
|
||||
} else if (!strcasecmp(v->name, "dialtype")) {
|
||||
dialtype = toupper(v->value[0]);
|
||||
} else if (!strcasecmp(v->name, "context")) {
|
||||
strncpy(context, v->value, sizeof(context));
|
||||
}
|
||||
v = v->next;
|
||||
}
|
||||
pthread_mutex_unlock(&iflock);
|
||||
if (ast_channel_register(type, tdesc, /* XXX Don't know our types -- maybe we should register more than one XXX */ AST_FORMAT_SLINEAR, modem_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 ast_modem_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(void)
|
||||
{
|
||||
int res;
|
||||
pthread_mutex_lock(&usecnt_lock);
|
||||
res = usecnt;
|
||||
pthread_mutex_unlock(&usecnt_lock);
|
||||
return res;
|
||||
}
|
||||
|
||||
char *description()
|
||||
{
|
||||
return desc;
|
||||
}
|
||||
|
|
@ -3,7 +3,7 @@
|
|||
*
|
||||
* General Asterisk channel definitions.
|
||||
*
|
||||
* Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
|
||||
* Copyright (C) 1999, Mark Spencer
|
||||
*
|
||||
* Mark Spencer <markster@linux-support.net>
|
||||
*
|
||||
|
@ -23,7 +23,7 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
#include <pthread.h>
|
||||
|
||||
#define AST_CHANNEL_NAME 80
|
||||
#define AST_CHANNEL_MAX_STACK 32
|
||||
|
@ -34,7 +34,10 @@ extern "C" {
|
|||
struct ast_channel {
|
||||
char name[AST_CHANNEL_NAME]; /* ASCII Description of channel name */
|
||||
pthread_t blocker; /* If anyone is blocking, this is them */
|
||||
pthread_mutex_t lock; /* Lock, can be used to lock a channel for some operations */
|
||||
char *blockproc; /* Procedure causing blocking */
|
||||
char *appl; /* Current application */
|
||||
char *data; /* Data passed to current application */
|
||||
int blocking; /* Whether or not we're blocking */
|
||||
struct sched_context *sched; /* Schedule context */
|
||||
int streamid; /* For streaming playback, the schedule ID */
|
||||
|
@ -129,6 +132,9 @@ struct ast_frame *ast_read(struct ast_channel *chan);
|
|||
/* Write a frame to a channel */
|
||||
int ast_write(struct ast_channel *chan, struct ast_frame *frame);
|
||||
|
||||
/* Browse the channels currently in use */
|
||||
struct ast_channel *ast_channel_walk(struct ast_channel *prev);
|
||||
|
||||
/* Wait for a digit. Returns <0 on error, 0 on no entry, and the digit on success. */
|
||||
char ast_waitfordigit(struct ast_channel *c, int ms);
|
||||
|
||||
|
|
28
loader.c
28
loader.c
|
@ -3,7 +3,7 @@
|
|||
*
|
||||
* Module Loader
|
||||
*
|
||||
* Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
|
||||
* Copyright (C) 1999, Mark Spencer
|
||||
*
|
||||
* Mark Spencer <markster@linux-support.net>
|
||||
*
|
||||
|
@ -91,9 +91,22 @@ int ast_load_resource(char *resource_name)
|
|||
static char fn[256];
|
||||
int errors=0;
|
||||
int res;
|
||||
struct module *m = malloc(sizeof(struct module));
|
||||
struct module *m;
|
||||
if (pthread_mutex_lock(&modlock))
|
||||
ast_log(LOG_WARNING, "Failed to lock\n");
|
||||
m = module_list;
|
||||
while(m) {
|
||||
if (!strcasecmp(m->resource, resource_name)) {
|
||||
ast_log(LOG_WARNING, "Module '%s' already exists\n", resource_name);
|
||||
pthread_mutex_unlock(&modlock);
|
||||
return -1;
|
||||
}
|
||||
m = m->next;
|
||||
}
|
||||
m = malloc(sizeof(struct module));
|
||||
if (!m) {
|
||||
ast_log(LOG_WARNING, "Out of memory\n");
|
||||
pthread_mutex_unlock(&modlock);
|
||||
return -1;
|
||||
}
|
||||
strncpy(m->resource, resource_name, sizeof(m->resource));
|
||||
|
@ -106,6 +119,7 @@ int ast_load_resource(char *resource_name)
|
|||
if (!m->lib) {
|
||||
ast_log(LOG_WARNING, "%s\n", dlerror());
|
||||
free(m);
|
||||
pthread_mutex_unlock(&modlock);
|
||||
return -1;
|
||||
}
|
||||
m->load_module = dlsym(m->lib, "load_module");
|
||||
|
@ -132,25 +146,23 @@ int ast_load_resource(char *resource_name)
|
|||
ast_log(LOG_WARNING, "%d error(s) loading module %s, aborted\n", errors, fn);
|
||||
dlclose(m->lib);
|
||||
free(m);
|
||||
pthread_mutex_unlock(&modlock);
|
||||
return -1;
|
||||
}
|
||||
if (option_verbose)
|
||||
ast_verbose( " => (%s)\n", m->description());
|
||||
pthread_mutex_unlock(&modlock);
|
||||
if ((res = m->load_module())) {
|
||||
ast_log(LOG_WARNING, "%s: load_module failed, returning %d\n", m->resource, fn, res);
|
||||
free(m);
|
||||
ast_unload_resource(resource_name, 0);
|
||||
return -1;
|
||||
}
|
||||
if (pthread_mutex_lock(&modlock))
|
||||
ast_log(LOG_WARNING, "Failed to lock\n");
|
||||
m->next = module_list;
|
||||
module_list = m;
|
||||
pthread_mutex_unlock(&modlock);
|
||||
ast_update_use_count();
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ast_resource_exists(char *resource)
|
||||
static int ast_resource_exists(char *resource)
|
||||
{
|
||||
struct module *m;
|
||||
if (pthread_mutex_lock(&modlock))
|
||||
|
|
11
logger.c
11
logger.c
|
@ -3,7 +3,7 @@
|
|||
*
|
||||
* Mark Spencer <markster@marko.net>
|
||||
*
|
||||
* Copyright(C) 1999, Adtran, Inc.
|
||||
* Copyright(C)1999, Mark Spencer
|
||||
*
|
||||
* Distributed under the terms of the GNU General Public License (GPL) Version 2
|
||||
*
|
||||
|
@ -29,6 +29,7 @@
|
|||
#define MAX_MSG_QUEUE 200
|
||||
|
||||
static pthread_mutex_t msglist_lock = PTHREAD_MUTEX_INITIALIZER;
|
||||
static pthread_mutex_t loglock = PTHREAD_MUTEX_INITIALIZER;
|
||||
|
||||
static struct msglist {
|
||||
char *msg;
|
||||
|
@ -75,7 +76,7 @@ extern void ast_log(int level, char *file, int line, char *function, char *fmt,
|
|||
|
||||
va_list ap;
|
||||
va_start(ap, fmt);
|
||||
|
||||
pthread_mutex_lock(&loglock);
|
||||
if (level == 1 /* Event */) {
|
||||
time(&t);
|
||||
tm = localtime(&t);
|
||||
|
@ -92,12 +93,13 @@ extern void ast_log(int level, char *file, int line, char *function, char *fmt,
|
|||
vfprintf(stdout, fmt, ap);
|
||||
fflush(stdout);
|
||||
}
|
||||
pthread_mutex_unlock(&loglock);
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
extern void ast_verbose(char *fmt, ...)
|
||||
{
|
||||
static char stuff[256];
|
||||
static char stuff[4096];
|
||||
static int pos = 0, opos;
|
||||
static int replacelast = 0, complete;
|
||||
struct msglist *m;
|
||||
|
@ -139,6 +141,7 @@ extern void ast_verbose(char *fmt, ...)
|
|||
}
|
||||
}
|
||||
}
|
||||
pthread_mutex_lock(&loglock);
|
||||
if (verboser) {
|
||||
v = verboser;
|
||||
while(v) {
|
||||
|
@ -152,7 +155,7 @@ extern void ast_verbose(char *fmt, ...)
|
|||
replacelast = 1;
|
||||
else
|
||||
replacelast = pos = 0;
|
||||
|
||||
pthread_mutex_unlock(&loglock);
|
||||
va_end(ap);
|
||||
pthread_mutex_unlock(&msglist_lock);
|
||||
}
|
||||
|
|
Reference in New Issue