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_dnsproxy = TRUE;
  67 static gboolean option_compat = FALSE;
  68 static gboolean option_version = FALSE;
  69
  70 static gboolean parse_debug(const char *key, const char *value,
  71                                         gpointer user_data, GError **error)
  72 {
  73         if (value)
  74                 option_debug = g_strdup(value);
  75         else
  76                 option_debug = g_strdup("*");
  77
  78         return TRUE;
  79 }
  80
  81 static GOptionEntry options[] = {
  82         { "debug", 'd', G_OPTION_FLAG_OPTIONAL_ARG,
  83                                 G_OPTION_ARG_CALLBACK, parse_debug,
  84                                 "Specify debug options to enable", "DEBUG" },
  85         { "device", 'i', 0, G_OPTION_ARG_STRING, &option_device,
  86                         "Specify networking device or interface", "DEV" },
  87         { "nodevice", 'I', 0, G_OPTION_ARG_STRING, &option_nodevice,
  88                         "Specify networking interface to ignore", "DEV" },
  89         { "plugin", 'p', 0, G_OPTION_ARG_STRING, &option_plugin,
  90                                 "Specify plugins to load", "NAME,..." },
  91         { "noplugin", 'P', 0, G_OPTION_ARG_STRING, &option_noplugin,
  92                                 "Specify plugins not to load", "NAME,..." },
  93         { "wifi", 'W', 0, G_OPTION_ARG_STRING, &option_wifi,
  94                                 "Specify driver for WiFi/Supplicant", "NAME" },
  95         { "nodaemon", 'n', G_OPTION_FLAG_REVERSE,
  96                                 G_OPTION_ARG_NONE, &option_detach,
  97                                 "Don't fork daemon to background" },
  98         { "nodnsproxy", 'r', G_OPTION_FLAG_REVERSE,
  99                                 G_OPTION_ARG_NONE, &option_dnsproxy,
 100                                 "Don't enable DNS Proxy" },
 101         { "compat", 'c', 0, G_OPTION_ARG_NONE, &option_compat,
 102                                 "(obsolete)" },
 103         { "version", 'v', 0, G_OPTION_ARG_NONE, &option_version,
 104                                 "Show version information and exit" },
 105         { NULL },
 106 };
 107
 108 const char *connman_option_get_string(const char *key)
 109 {
 110         if (g_strcmp0(key, "wifi") == 0) {
 111                 if (option_wifi == NULL)
 112                         return "nl80211,wext";
 113                 else
 114                         return option_wifi;
 115         }
 116
 117         return NULL;
 118 }
 119
 120 int main(int argc, char *argv[])
 121 {
 122         GOptionContext *context;
 123         GError *error = NULL;
 124         DBusConnection *conn;
 125         DBusError err;
 126         struct sigaction sa;
 127         mode_t old_umask;
 128
 129 #ifdef HAVE_CAPNG
 130         /* Drop capabilities */
 131 #endif
 132
 133 #ifdef NEED_THREADS
 134         if (g_thread_supported() == FALSE)
 135                 g_thread_init(NULL);
 136 #endif
 137
 138         context = g_option_context_new(NULL);
 139         g_option_context_add_main_entries(context, options, NULL);
 140
 141         if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
 142                 if (error != NULL) {
 143                         g_printerr("%s\n", error->message);
 144                         g_error_free(error);
 145                 } else
 146                         g_printerr("An unknown error occurred\n");
 147                 exit(1);
 148         }
 149
 150         g_option_context_free(context);
 151
 152         if (option_version == TRUE) {
 153                 printf("%s\n", VERSION);
 154                 exit(0);
 155         }
 156
 157         if (option_detach == TRUE) {
 158                 if (daemon(0, 0)) {
 159                         perror("Can't start daemon");
 160                         exit(1);
 161                 }
 162         }
 163
 164         if (mkdir(STATEDIR, S_IRUSR | S_IWUSR | S_IXUSR |
 165                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 166                 if (errno != EEXIST)
 167                         perror("Failed to create state directory");
 168         }
 169
 170         if (mkdir(STORAGEDIR, S_IRUSR | S_IWUSR | S_IXUSR |
 171                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 172                 if (errno != EEXIST)
 173                         perror("Failed to create storage directory");
 174         }
 175
 176         if (mkdir(STORAGEDIR "/stats", S_IRUSR | S_IWUSR | S_IXUSR |
 177                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 178                 if (errno != EEXIST)
 179                         perror("Failed to create statistics directory");
 180         }
 181
 182         old_umask = umask(077);
 183
 184         main_loop = g_main_loop_new(NULL, FALSE);
 185
 186 #ifdef NEED_THREADS
 187         if (dbus_threads_init_default() == FALSE) {
 188                 fprintf(stderr, "Can't init usage of threads\n");
 189                 exit(1);
 190         }
 191 #endif
 192
 193         dbus_error_init(&err);
 194
 195         conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, CONNMAN_SERVICE, &err);
 196         if (conn == NULL) {
 197                 if (dbus_error_is_set(&err) == TRUE) {
 198                         fprintf(stderr, "%s\n", err.message);
 199                         dbus_error_free(&err);
 200                 } else
 201                         fprintf(stderr, "Can't register with system bus\n");
 202                 exit(1);
 203         }
 204
 205         g_dbus_set_disconnect_function(conn, disconnect_callback, NULL, NULL);
 206
 207         __connman_log_init(option_debug, option_detach);
 208
 209         __connman_dbus_init(conn);
 210
 211         __connman_storage_init();
 212         __connman_element_init(option_device, option_nodevice);
 213
 214         __connman_agent_init();
 215         __connman_iptables_init();
 216         __connman_tethering_init();
 217         __connman_counter_init();
 218         __connman_manager_init();
 219         __connman_profile_init();
 220         __connman_config_init();
 221         __connman_stats_init();
 222
 223         __connman_resolver_init(option_dnsproxy);
 224         __connman_ipconfig_init();
 225         __connman_rtnl_init();
 226         __connman_task_init();
 227         __connman_proxy_init();
 228         __connman_detect_init();
 229         __connman_session_init();
 230         __connman_timeserver_init();
 231
 232         __connman_plugin_init(option_plugin, option_noplugin);
 233
 234         __connman_element_start();
 235
 236         g_free(option_device);
 237         g_free(option_plugin);
 238         g_free(option_nodevice);
 239         g_free(option_noplugin);
 240
 241         memset(&sa, 0, sizeof(sa));
 242         sa.sa_handler = sig_term;
 243         sigaction(SIGINT, &sa, NULL);
 244         sigaction(SIGTERM, &sa, NULL);
 245
 246         g_main_loop_run(main_loop);
 247
 248         __connman_element_stop();
 249
 250         __connman_plugin_cleanup();
 251
 252         __connman_timeserver_cleanup();
 253         __connman_session_cleanup();
 254         __connman_detect_cleanup();
 255         __connman_proxy_cleanup();
 256         __connman_task_cleanup();
 257         __connman_rtnl_cleanup();
 258         __connman_ipconfig_cleanup();
 259         __connman_resolver_cleanup();
 260
 261         __connman_stats_cleanup();
 262         __connman_config_cleanup();
 263         __connman_profile_cleanup();
 264         __connman_manager_cleanup();
 265         __connman_counter_cleanup();
 266         __connman_agent_cleanup();
 267         __connman_tethering_cleanup();
 268         __connman_iptables_cleanup();
 269
 270         __connman_element_cleanup();
 271         __connman_storage_cleanup();
 272
 273         __connman_dbus_cleanup();
 274
 275         __connman_log_cleanup();
 276
 277         dbus_connection_unref(conn);
 278
 279         g_main_loop_unref(main_loop);
 280
 281         return 0;
 282 }