mirror of git://git.sysmocom.de/ofono
423 lines
8.1 KiB
C
423 lines
8.1 KiB
C
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/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2008-2010 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <unistd.h>
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#include <stdio.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <signal.h>
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#include <sys/signalfd.h>
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#include <glib.h>
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#include <utmp.h>
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#include <pty.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "gatserver.h"
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#include "ringbuffer.h"
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#define DEFAULT_TCP_PORT 12346
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#define DEFAULT_SOCK_PATH "./server_sock"
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struct sock_server{
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int server_sock;
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};
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static GMainLoop *mainloop;
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static GAtServer *server;
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unsigned int server_watch;
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static gboolean server_cleanup()
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{
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if (server_watch)
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g_source_remove(server_watch);
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g_at_server_unref(server);
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server = NULL;
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unlink(DEFAULT_SOCK_PATH);
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g_main_loop_quit(mainloop);
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return FALSE;
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}
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static void server_debug(const char *str, void *data)
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{
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g_print("%s: %s\n", (char *) data, str);
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}
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static void add_handler(GAtServer *server)
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{
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g_at_server_set_debug(server, server_debug, "Server");
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}
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static void server_destroy(gpointer user)
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{
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struct sock_server *data = user;
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if (data)
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g_free(data);
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}
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static void set_raw_mode(int fd)
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{
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struct termios options;
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tcgetattr(fd, &options);
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/* Set TTY as raw mode to disable echo back of input characters
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* when they are received from Modem to avoid feedback loop */
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options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
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tcsetattr(fd, TCSANOW, &options);
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}
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static GAtServer *create_tty(const char *modem_path)
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{
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int master, slave;
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char pty_name[256];
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GIOChannel *server_io;
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GIOChannel *client_io;
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if (!modem_path)
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return NULL;
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if (openpty(&master, &slave, pty_name, NULL, NULL) < 0)
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return NULL;
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set_raw_mode(slave);
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client_io = g_io_channel_unix_new(slave);
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g_io_channel_set_close_on_unref(client_io, TRUE);
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g_print("new pty is created at %s\n", pty_name);
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server_io = g_io_channel_unix_new(master);
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server = g_at_server_new(server_io);
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if (!server) {
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g_io_channel_shutdown(server_io, FALSE, NULL);
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g_io_channel_unref(server_io);
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return FALSE;
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}
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add_handler(server);
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return server;
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}
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static gboolean on_socket_connected(GIOChannel *chan, GIOCondition cond,
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gpointer user)
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{
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struct sockaddr saddr;
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unsigned int len = sizeof(saddr);
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int fd;
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GIOChannel *client_io = NULL;
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struct sock_server *data = user;
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if (cond != G_IO_IN)
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goto error;
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fd = accept(data->server_sock, &saddr, &len);
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if (fd == -1)
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goto error;
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client_io = g_io_channel_unix_new(fd);
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server = g_at_server_new(client_io);
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if (!server) {
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g_io_channel_shutdown(client_io, FALSE, NULL);
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g_io_channel_unref(client_io);
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goto error;
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}
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add_handler(server);
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return TRUE;
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error:
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if (data)
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g_free(data);
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return FALSE;
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}
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static struct sock_server *socket_common(int sk, struct sockaddr *addr,
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const char *modem_path)
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{
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struct sock_server *sock;
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if (bind(sk, addr, sizeof(struct sockaddr)) < 0) {
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g_print("Can't bind socket: %s (%d)", strerror(errno), errno);
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close(sk);
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return NULL;
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}
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if (listen(sk, 1) < 0) {
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g_print("Can't listen on socket: %s (%d)",
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strerror(errno), errno);
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close(sk);
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return NULL;
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}
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sock = g_try_new0(struct sock_server, 1);
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if (!sock)
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return FALSE;
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sock->server_sock = sk;
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return sock;
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}
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static gboolean create_tcp(const char *modem_path, int port)
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{
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struct sockaddr_in addr;
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int sk;
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struct sock_server *server;
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GIOChannel *server_io;
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if (!modem_path)
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return FALSE;
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sk = socket(PF_INET, SOCK_STREAM, 0);
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if (sk < 0) {
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g_print("Can't create tcp/ip socket: %s (%d)",
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strerror(errno), errno);
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return FALSE;
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}
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = INADDR_ANY;
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addr.sin_port = htons(port);
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server = socket_common(sk, (struct sockaddr *) &addr, modem_path);
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if (!server)
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return FALSE;
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g_print("new tcp is created at tcp port %d\n", port);
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server_io = g_io_channel_unix_new(sk);
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g_io_channel_set_close_on_unref(server_io, TRUE);
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server_watch = g_io_add_watch_full(server_io,
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G_PRIORITY_DEFAULT,
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G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
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on_socket_connected, server, server_destroy);
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g_io_channel_unref(server_io);
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return TRUE;
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}
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static gboolean create_unix(const char *modem_path, const char *sock_path)
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{
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struct sockaddr_un addr;
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int sk;
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struct sock_server *server;
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GIOChannel *server_io;
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if (!modem_path)
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return FALSE;
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sk = socket(AF_UNIX, SOCK_STREAM, 0);
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if (sk < 0) {
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g_print("Can't create unix socket: %s (%d)",
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strerror(errno), errno);
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return FALSE;
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}
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memset(&addr, 0, sizeof(addr));
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, sock_path, sizeof(addr.sun_path) - 1);
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/* Unlink any existing socket for this session */
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unlink(addr.sun_path);
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server = socket_common(sk, (struct sockaddr *) &addr, modem_path);
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if (!server)
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return FALSE;
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g_print("new unix socket is created at %s\n", sock_path);
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server_io = g_io_channel_unix_new(sk);
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g_io_channel_set_close_on_unref(server_io, TRUE);
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server_watch = g_io_add_watch_full(server_io,
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G_PRIORITY_DEFAULT,
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G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
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on_socket_connected, server, server_destroy);
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g_io_channel_unref(server_io);
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return TRUE;
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}
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static void test_server(int type)
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{
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switch (type) {
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case 0:
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server = create_tty("/phonesim1");
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add_handler(server);
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break;
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case 1:
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if (!create_tcp("/phonesim1", DEFAULT_TCP_PORT))
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exit(-1);
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break;
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case 2:
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if (!create_unix("/phonesim1", DEFAULT_SOCK_PATH))
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exit(-1);
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break;
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}
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}
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static gboolean signal_cb(GIOChannel *channel, GIOCondition cond, gpointer data)
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{
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int signal_fd = GPOINTER_TO_INT(data);
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struct signalfd_siginfo si;
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ssize_t res;
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if (cond & (G_IO_NVAL | G_IO_ERR))
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return FALSE;
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res = read(signal_fd, &si, sizeof(si));
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if (res != sizeof(si))
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return FALSE;
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switch (si.ssi_signo) {
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case SIGINT:
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server_cleanup();
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break;
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case SIGTERM:
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server_cleanup();
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break;
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default:
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break;
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}
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return TRUE;
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}
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static int create_signal_io()
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{
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sigset_t mask;
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GIOChannel *signal_io;
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int signal_fd, signal_source;
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sigemptyset(&mask);
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sigaddset(&mask, SIGTERM);
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sigaddset(&mask, SIGINT);
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if (sigprocmask(SIG_BLOCK, &mask, NULL) < 0) {
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g_error("Can't set signal mask");
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return 1;
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}
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signal_fd = signalfd(-1, &mask, 0);
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if (signal_fd < 0) {
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g_error("Can't create signal filedescriptor");
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return 1;
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}
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signal_io = g_io_channel_unix_new(signal_fd);
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g_io_channel_set_close_on_unref(signal_io, TRUE);
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signal_source = g_io_add_watch(signal_io,
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G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
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signal_cb, GINT_TO_POINTER(signal_fd));
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g_io_channel_unref(signal_io);
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return signal_source;
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}
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static void usage(void)
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{
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g_print("test-server - AT Server testing\n"
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"Usage:\n");
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g_print("\ttest-server [-t type]\n");
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g_print("Types:\n"
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"\t0: Pseudo TTY port (default)\n"
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"\t1: TCP sock at port 12346)\n"
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"\t2: Unix sock at ./server_sock\n");
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}
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int main(int argc, char **argv)
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{
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int opt, signal_source;
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int type = 0;
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while ((opt = getopt(argc, argv, "ht:")) != EOF) {
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switch (opt) {
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case 't':
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type = atoi(optarg);
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break;
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case 'h':
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usage();
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exit(1);
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break;
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default:
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break;
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}
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}
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test_server(type);
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signal_source = create_signal_io();
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mainloop = g_main_loop_new(NULL, FALSE);
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g_main_loop_run(mainloop);
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g_main_loop_unref(mainloop);
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g_source_remove(signal_source);
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return 0;
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}
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