src/main.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <string.h>
  30 #include <signal.h>
  31 #include <getopt.h>
  32 #include <sys/stat.h>
  33 #include <net/if.h>
  34
  35 #include <gdbus.h>
  36
  37 #ifdef HAVE_CAPNG
  38 #include <cap-ng.h>
  39 #endif
  40
  41 #include "connman.h"
  42
  43 static GMainLoop *main_loop = NULL;
  44
  45 static void sig_term(int sig)
  46 {
  47         connman_info("Terminating");
  48
  49         g_main_loop_quit(main_loop);
  50 }
  51
  52 static void disconnect_callback(DBusConnection *conn, void *user_data)
  53 {
  54         connman_error("D-Bus disconnect");
  55
  56         g_main_loop_quit(main_loop);
  57 }
  58
  59 static gchar *option_debug = NULL;
  60 static gchar *option_device = NULL;
  61 static gchar *option_plugin = NULL;
  62 static gchar *option_nodevice = NULL;
  63 static gchar *option_noplugin = NULL;
  64 static gchar *option_wifi = NULL;
  65 static gboolean option_detach = TRUE;
  66 static gboolean option_compat = FALSE;
  67 static gboolean option_selftest = FALSE;
  68 static gboolean option_version = FALSE;
  69
  70 static GOptionEntry options[] = {
  71         { "debug", 'd', 0, G_OPTION_ARG_STRING, &option_debug,
  72                                 "Specify debug options to enable", "DEBUG" },
  73         { "device", 'i', 0, G_OPTION_ARG_STRING, &option_device,
  74                         "Specify networking device or interface", "DEV" },
  75         { "nodevice", 'I', 0, G_OPTION_ARG_STRING, &option_nodevice,
  76                         "Specify networking interface to ignore", "DEV" },
  77         { "plugin", 'p', 0, G_OPTION_ARG_STRING, &option_plugin,
  78                                 "Specify plugins to load", "NAME" },
  79         { "noplugin", 'P', 0, G_OPTION_ARG_STRING, &option_noplugin,
  80                                 "Specify plugins not to load", "NAME" },
  81         { "wifi", 'W', 0, G_OPTION_ARG_STRING, &option_wifi,
  82                                 "Specify driver for WiFi/Supplicant", "NAME" },
  83         { "nodaemon", 'n', G_OPTION_FLAG_REVERSE,
  84                                 G_OPTION_ARG_NONE, &option_detach,
  85                                 "Don't fork daemon to background" },
  86         { "compat", 'c', 0, G_OPTION_ARG_NONE, &option_compat,
  87                                 "Enable Network Manager compatibility" },
  88         { "selftest", 't', 0, G_OPTION_ARG_NONE, &option_selftest,
  89                                 "Run self testing routines" },
  90         { "version", 'v', 0, G_OPTION_ARG_NONE, &option_version,
  91                                 "Show version information and exit" },
  92         { NULL },
  93 };
  94
  95 const char *connman_option_get_string(const char *key)
  96 {
  97         if (g_strcmp0(key, "wifi") == 0) {
  98                 if (option_wifi == NULL)
  99                         return "wext";
 100                 else
 101                         return option_wifi;
 102         }
 103
 104         return NULL;
 105 }
 106
 107 int main(int argc, char *argv[])
 108 {
 109         GOptionContext *context;
 110         GError *error = NULL;
 111         DBusConnection *conn;
 112         DBusError err;
 113         struct sigaction sa;
 114         mode_t old_umask;
 115
 116 #ifdef HAVE_CAPNG
 117         /* Drop capabilities */
 118 #endif
 119
 120 #ifdef NEED_THREADS
 121         if (g_thread_supported() == FALSE)
 122                 g_thread_init(NULL);
 123 #endif
 124
 125         context = g_option_context_new(NULL);
 126         g_option_context_add_main_entries(context, options, NULL);
 127
 128         if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
 129                 if (error != NULL) {
 130                         g_printerr("%s\n", error->message);
 131                         g_error_free(error);
 132                 } else
 133                         g_printerr("An unknown error occurred\n");
 134                 exit(1);
 135         }
 136
 137         g_option_context_free(context);
 138
 139         if (option_version == TRUE) {
 140                 printf("%s\n", VERSION);
 141                 exit(0);
 142         }
 143
 144         if (option_detach == TRUE) {
 145                 if (daemon(0, 0)) {
 146                         perror("Can't start daemon");
 147                         exit(1);
 148                 }
 149         }
 150
 151         if (mkdir(STATEDIR, S_IRUSR | S_IWUSR | S_IXUSR |
 152                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 153                 if (errno != EEXIST)
 154                         perror("Failed to create state directory");
 155         }
 156
 157         if (mkdir(STORAGEDIR, S_IRUSR | S_IWUSR | S_IXUSR |
 158                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 159                 if (errno != EEXIST)
 160                         perror("Failed to create storage directory");
 161         }
 162
 163         old_umask = umask(077);
 164
 165         main_loop = g_main_loop_new(NULL, FALSE);
 166
 167 #ifdef NEED_THREADS
 168         if (dbus_threads_init_default() == FALSE) {
 169                 fprintf(stderr, "Can't init usage of threads\n");
 170                 exit(1);
 171         }
 172 #endif
 173
 174         dbus_error_init(&err);
 175
 176         conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, CONNMAN_SERVICE, &err);
 177         if (conn == NULL) {
 178                 if (dbus_error_is_set(&err) == TRUE) {
 179                         fprintf(stderr, "%s\n", err.message);
 180                         dbus_error_free(&err);
 181                 } else
 182                         fprintf(stderr, "Can't register with system bus\n");
 183                 exit(1);
 184         }
 185
 186         g_dbus_set_disconnect_function(conn, disconnect_callback, NULL, NULL);
 187
 188         if (option_compat == TRUE) {
 189                 if (g_dbus_request_name(conn, NM_SERVICE, NULL) == FALSE) {
 190                         fprintf(stderr, "Can't register compat service\n");
 191                         option_compat = FALSE;
 192                 }
 193         }
 194
 195         __connman_log_init(option_debug, option_detach);
 196
 197         if (option_selftest == TRUE) {
 198                 if (__connman_selftest() < 0) {
 199                         connman_error("Self testing routines failed");
 200                         goto selftest;
 201                 }
 202         }
 203
 204         __connman_dbus_init(conn);
 205
 206         __connman_storage_init();
 207         __connman_element_init(option_device, option_nodevice);
 208
 209         __connman_agent_init();
 210         __connman_counter_init();
 211         __connman_manager_init(option_compat);
 212         __connman_profile_init();
 213         __connman_config_init();
 214
 215         __connman_resolver_init();
 216         __connman_ipconfig_init();
 217         __connman_rtnl_init();
 218         __connman_udev_init();
 219         __connman_task_init();
 220         __connman_session_init();
 221
 222         __connman_plugin_init(option_plugin, option_noplugin);
 223
 224         __connman_element_start();
 225
 226         g_free(option_device);
 227         g_free(option_plugin);
 228         g_free(option_nodevice);
 229         g_free(option_noplugin);
 230
 231         memset(&sa, 0, sizeof(sa));
 232         sa.sa_handler = sig_term;
 233         sigaction(SIGINT, &sa, NULL);
 234         sigaction(SIGTERM, &sa, NULL);
 235
 236         g_main_loop_run(main_loop);
 237
 238         __connman_element_stop();
 239
 240         __connman_plugin_cleanup();
 241
 242         __connman_session_cleanup();
 243         __connman_task_cleanup();
 244         __connman_udev_cleanup();
 245         __connman_rtnl_cleanup();
 246         __connman_ipconfig_cleanup();
 247         __connman_resolver_cleanup();
 248
 249         __connman_config_cleanup();
 250         __connman_profile_cleanup();
 251         __connman_manager_cleanup();
 252         __connman_counter_cleanup();
 253         __connman_agent_cleanup();
 254
 255         __connman_element_cleanup();
 256         __connman_storage_cleanup();
 257
 258         __connman_dbus_cleanup();
 259
 260 selftest:
 261         __connman_log_cleanup();
 262
 263         dbus_connection_unref(conn);
 264
 265         g_main_loop_unref(main_loop);
 266
 267         return 0;
 268 }