diff options
Diffstat (limited to '1.4.23-rc4/apps/app_dahdiras.c')
| -rw-r--r-- | 1.4.23-rc4/apps/app_dahdiras.c | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/1.4.23-rc4/apps/app_dahdiras.c b/1.4.23-rc4/apps/app_dahdiras.c deleted file mode 100644 index 4ac5daa3d..000000000 --- a/1.4.23-rc4/apps/app_dahdiras.c +++ /dev/null @@ -1,288 +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>dahdi</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 "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" - -#include "asterisk/dahdi_compat.h" - -static char *dahdi_app = "DAHDIRAS"; -static char *zap_app = "ZapRAS"; - -static char *dahdi_synopsis = "Executes DAHDI ISDN RAS application"; -static char *zap_synopsis = "Executes Zaptel ISDN RAS application"; - -static char *dahdi_descrip = -" DAHDIRAS(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 DAHDI\n" -"channel to be able to use this function (no modem emulation is included).\n" -"Your pppd must have the DAHDI plugin available. Arguments should be\n" -"separated by | characters.\n"; - -static char *zap_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 have the Zaptel plugin available. 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 DAHDI 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"; -#ifdef HAVE_ZAPTEL - argv[argc++] = "zaptel.so"; -#else - argv[argc++] = "dahdi.so"; -#endif - 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 dahdi_bufferinfo savebi; - int x; - - res = ioctl(chan->fds[0], DAHDI_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], DAHDI_AUDIOMODE, &x); - - /* Restore saved values */ - res = ioctl(chan->fds[0], DAHDI_SET_BUFINFO, &savebi); - if (res < 0) { - ast_log(LOG_WARNING, "Unable to set buffer policy on channel %s\n", chan->name); - } - break; - } - } -} - -static int exec(struct ast_channel *chan, void *data) -{ - int res=-1; - char *args; - struct ast_module_user *u; - struct dahdi_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, dahdi_chan_name)) { - if (option_verbose > 1) - ast_verbose(VERBOSE_PREFIX_2 "Channel %s is not a %s channel\n", chan->name, dahdi_chan_name); - sleep(2); - } else { - memset(&ztp, 0, sizeof(ztp)); - if (ioctl(chan->fds[0], DAHDI_GET_PARAMS, &ztp)) { - ast_log(LOG_WARNING, "Unable to get parameters\n"); - } else if (ztp.sigtype != DAHDI_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 exec_warn(struct ast_channel *chan, void *data) -{ - ast_log(LOG_WARNING, "Use of the command %s is deprecated, please use %s instead.\n", zap_app, dahdi_app); - - return exec(chan, data); -} - -static int unload_module(void) -{ - int res = 0; - - if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { - res |= ast_unregister_application(dahdi_app); - } - - res |= ast_unregister_application(zap_app); - - ast_module_user_hangup_all(); - - return res; -} - -static int load_module(void) -{ - int res = 0; - - if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { - res |= ast_register_application(dahdi_app, exec, dahdi_synopsis, dahdi_descrip); - } - - res |= ast_register_application(zap_app, exec_warn, zap_synopsis, zap_descrip); - - return res; -} - -AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "DAHDI RAS Application"); - |