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authorjpeeler <jpeeler@f38db490-d61c-443f-a65b-d21fe96a405b>2008-06-12 19:08:20 +0000
committerjpeeler <jpeeler@f38db490-d61c-443f-a65b-d21fe96a405b>2008-06-12 19:08:20 +0000
commitf84b02a71d0968338c22758b24cc14e15e3864a4 (patch)
tree464a2032e05934a867493f45e5a2605929fceb8a /apps/app_zapras.c
parentac54a25ad7440165f775131b2859ab56aa3c5a92 (diff)
Adds DAHDI support alongside Zaptel. DAHDI usage favored, but all Zap stuff should continue working. Release announcement to follow.
git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@122314 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'apps/app_zapras.c')
-rw-r--r--apps/app_zapras.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/apps/app_zapras.c b/apps/app_zapras.c
deleted file mode 100644
index c3ccf30d9..000000000
--- a/apps/app_zapras.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2005, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief Execute an ISDN RAS
- *
- * \author Mark Spencer <markster@digium.com>
- *
- * \ingroup applications
- */
-
-/*** MODULEINFO
- <depend>zaptel</depend>
- ***/
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include <sys/ioctl.h>
-#include <sys/wait.h>
-#ifdef __linux__
-#include <sys/signal.h>
-#else
-#include <signal.h>
-#endif /* __linux__ */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <zaptel/zaptel.h>
-
-#include "asterisk/lock.h"
-#include "asterisk/file.h"
-#include "asterisk/logger.h"
-#include "asterisk/channel.h"
-#include "asterisk/pbx.h"
-#include "asterisk/module.h"
-#include "asterisk/options.h"
-
-static char *app = "ZapRAS";
-
-static char *synopsis = "Executes Zaptel ISDN RAS application";
-
-static char *descrip =
-" ZapRAS(args): Executes a RAS server using pppd on the given channel.\n"
-"The channel must be a clear channel (i.e. PRI source) and a Zaptel\n"
-"channel to be able to use this function (No modem emulation is included).\n"
-"Your pppd must be patched to be zaptel aware. Arguments should be\n"
-"separated by | characters.\n";
-
-
-#define PPP_MAX_ARGS 32
-#define PPP_EXEC "/usr/sbin/pppd"
-
-static pid_t spawn_ras(struct ast_channel *chan, char *args)
-{
- pid_t pid;
- int x;
- char *c;
-
- char *argv[PPP_MAX_ARGS];
- int argc = 0;
- char *stringp=NULL;
- sigset_t fullset, oldset;
-
- sigfillset(&fullset);
- pthread_sigmask(SIG_BLOCK, &fullset, &oldset);
-
- /* Start by forking */
- pid = fork();
- if (pid) {
- pthread_sigmask(SIG_SETMASK, &oldset, NULL);
- return pid;
- }
-
- /* Restore original signal handlers */
- for (x=0;x<NSIG;x++)
- signal(x, SIG_DFL);
-
- pthread_sigmask(SIG_UNBLOCK, &fullset, NULL);
-
- /* Execute RAS on File handles */
- dup2(chan->fds[0], STDIN_FILENO);
-
- /* Drop high priority */
- if (ast_opt_high_priority)
- ast_set_priority(0);
-
- /* Close other file descriptors */
- for (x=STDERR_FILENO + 1;x<1024;x++)
- close(x);
-
- /* Reset all arguments */
- memset(argv, 0, sizeof(argv));
-
- /* First argument is executable, followed by standard
- arguments for zaptel PPP */
- argv[argc++] = PPP_EXEC;
- argv[argc++] = "nodetach";
-
- /* And all the other arguments */
- stringp=args;
- c = strsep(&stringp, "|");
- while(c && strlen(c) && (argc < (PPP_MAX_ARGS - 4))) {
- argv[argc++] = c;
- c = strsep(&stringp, "|");
- }
-
- argv[argc++] = "plugin";
- argv[argc++] = "zaptel.so";
- argv[argc++] = "stdin";
-
- /* Finally launch PPP */
- execv(PPP_EXEC, argv);
- fprintf(stderr, "Failed to exec PPPD!\n");
- exit(1);
-}
-
-static void run_ras(struct ast_channel *chan, char *args)
-{
- pid_t pid;
- int status;
- int res;
- int signalled = 0;
- struct zt_bufferinfo savebi;
- int x;
-
- res = ioctl(chan->fds[0], ZT_GET_BUFINFO, &savebi);
- if(res) {
- ast_log(LOG_WARNING, "Unable to check buffer policy on channel %s\n", chan->name);
- return;
- }
-
- pid = spawn_ras(chan, args);
- if (pid < 0) {
- ast_log(LOG_WARNING, "Failed to spawn RAS\n");
- } else {
- for (;;) {
- res = wait4(pid, &status, WNOHANG, NULL);
- if (!res) {
- /* Check for hangup */
- if (chan->_softhangup && !signalled) {
- ast_log(LOG_DEBUG, "Channel '%s' hungup. Signalling RAS at %d to die...\n", chan->name, pid);
- kill(pid, SIGTERM);
- signalled=1;
- }
- /* Try again */
- sleep(1);
- continue;
- }
- if (res < 0) {
- ast_log(LOG_WARNING, "wait4 returned %d: %s\n", res, strerror(errno));
- }
- if (option_verbose > 2) {
- if (WIFEXITED(status)) {
- ast_verbose(VERBOSE_PREFIX_3 "RAS on %s terminated with status %d\n", chan->name, WEXITSTATUS(status));
- } else if (WIFSIGNALED(status)) {
- ast_verbose(VERBOSE_PREFIX_3 "RAS on %s terminated with signal %d\n",
- chan->name, WTERMSIG(status));
- } else {
- ast_verbose(VERBOSE_PREFIX_3 "RAS on %s terminated weirdly.\n", chan->name);
- }
- }
- /* Throw back into audio mode */
- x = 1;
- ioctl(chan->fds[0], ZT_AUDIOMODE, &x);
-
- /* Restore saved values */
- res = ioctl(chan->fds[0], ZT_SET_BUFINFO, &savebi);
- if (res < 0) {
- ast_log(LOG_WARNING, "Unable to set buffer policy on channel %s\n", chan->name);
- }
- break;
- }
- }
-}
-
-static int zapras_exec(struct ast_channel *chan, void *data)
-{
- int res=-1;
- char *args;
- struct ast_module_user *u;
- ZT_PARAMS ztp;
-
- if (!data)
- data = "";
-
- u = ast_module_user_add(chan);
-
- args = ast_strdupa(data);
-
- /* Answer the channel if it's not up */
- if (chan->_state != AST_STATE_UP)
- ast_answer(chan);
- if (strcasecmp(chan->tech->type, "Zap")) {
- /* If it's not a zap channel, we're done. Wait a couple of
- seconds and then hangup... */
- if (option_verbose > 1)
- ast_verbose(VERBOSE_PREFIX_2 "Channel %s is not a Zap channel\n", chan->name);
- sleep(2);
- } else {
- memset(&ztp, 0, sizeof(ztp));
- if (ioctl(chan->fds[0], ZT_GET_PARAMS, &ztp)) {
- ast_log(LOG_WARNING, "Unable to get zaptel parameters\n");
- } else if (ztp.sigtype != ZT_SIG_CLEAR) {
- if (option_verbose > 1)
- ast_verbose(VERBOSE_PREFIX_2 "Channel %s is not a clear channel\n", chan->name);
- } else {
- /* Everything should be okay. Run PPP. */
- if (option_verbose > 2)
- ast_verbose(VERBOSE_PREFIX_3 "Starting RAS on %s\n", chan->name);
- /* Execute RAS */
- run_ras(chan, args);
- }
- }
- ast_module_user_remove(u);
- return res;
-}
-
-static int unload_module(void)
-{
- int res;
-
- res = ast_unregister_application(app);
-
- ast_module_user_hangup_all();
-
- return res;
-}
-
-static int load_module(void)
-{
- return ast_register_application(app, zapras_exec, synopsis, descrip);
-}
-
-AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Zap RAS Application");
-