| /* |
| * |
| * BlueZ - Bluetooth protocol stack for Linux |
| * |
| * Copyright (C) 2000-2001 Qualcomm Incorporated |
| * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com> |
| * Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <stdbool.h> |
| #include <sys/signalfd.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #include <glib.h> |
| |
| #include <dbus/dbus.h> |
| |
| #include "lib/bluetooth.h" |
| #include "lib/sdp.h" |
| |
| #include "gdbus/gdbus.h" |
| |
| #include "log.h" |
| #include "backtrace.h" |
| |
| #include "lib/uuid.h" |
| #include "hcid.h" |
| #include "sdpd.h" |
| #include "adapter.h" |
| #include "device.h" |
| #include "dbus-common.h" |
| #include "agent.h" |
| #include "profile.h" |
| #include "systemd.h" |
| |
| #define BLUEZ_NAME "org.bluez" |
| |
| #define DEFAULT_PAIRABLE_TIMEOUT 0 /* disabled */ |
| #define DEFAULT_DISCOVERABLE_TIMEOUT 180 /* 3 minutes */ |
| |
| #define SHUTDOWN_GRACE_SECONDS 10 |
| |
| struct main_opts main_opts; |
| static GKeyFile *main_conf; |
| static char *main_conf_file_path; |
| |
| static enum { |
| MPS_OFF, |
| MPS_SINGLE, |
| MPS_MULTIPLE, |
| } mps = MPS_OFF; |
| |
| static const char *supported_options[] = { |
| "Name", |
| "Class", |
| "DiscoverableTimeout", |
| "PairableTimeout", |
| "DeviceID", |
| "ReverseServiceDiscovery", |
| "NameResolving", |
| "DebugKeys", |
| "ControllerMode", |
| "MultiProfile", |
| "FastConnectable", |
| "Privacy", |
| NULL |
| }; |
| |
| static const char *policy_options[] = { |
| "ReconnectUUIDs", |
| "ReconnectAttempts", |
| "ReconnectIntervals", |
| "AutoEnable", |
| NULL |
| }; |
| |
| static const char *gatt_options[] = { |
| "Cache", |
| "MinEncKeySize", |
| NULL |
| }; |
| |
| static const struct group_table { |
| const char *name; |
| const char **options; |
| } valid_groups[] = { |
| { "General", supported_options }, |
| { "Policy", policy_options }, |
| { "GATT", gatt_options }, |
| { } |
| }; |
| |
| |
| GKeyFile *btd_get_main_conf(void) |
| { |
| return main_conf; |
| } |
| |
| static GKeyFile *load_config(const char *file) |
| { |
| GError *err = NULL; |
| GKeyFile *keyfile; |
| |
| keyfile = g_key_file_new(); |
| |
| g_key_file_set_list_separator(keyfile, ','); |
| |
| if (!g_key_file_load_from_file(keyfile, file, 0, &err)) { |
| if (!g_error_matches(err, G_FILE_ERROR, G_FILE_ERROR_NOENT)) |
| error("Parsing %s failed: %s", file, err->message); |
| g_error_free(err); |
| g_key_file_free(keyfile); |
| return NULL; |
| } |
| |
| return keyfile; |
| } |
| |
| static void parse_did(const char *did) |
| { |
| int result; |
| uint16_t vendor, product, version , source; |
| |
| /* version and source are optional */ |
| version = 0x0000; |
| source = 0x0002; |
| |
| result = sscanf(did, "bluetooth:%4hx:%4hx:%4hx", |
| &vendor, &product, &version); |
| if (result != EOF && result >= 2) { |
| source = 0x0001; |
| goto done; |
| } |
| |
| result = sscanf(did, "usb:%4hx:%4hx:%4hx", |
| &vendor, &product, &version); |
| if (result != EOF && result >= 2) |
| goto done; |
| |
| result = sscanf(did, "%4hx:%4hx:%4hx", &vendor, &product, &version); |
| if (result == EOF || result < 2) |
| return; |
| |
| done: |
| main_opts.did_source = source; |
| main_opts.did_vendor = vendor; |
| main_opts.did_product = product; |
| main_opts.did_version = version; |
| } |
| |
| static bt_gatt_cache_t parse_gatt_cache(const char *cache) |
| { |
| if (!strcmp(cache, "always")) { |
| return BT_GATT_CACHE_ALWAYS; |
| } else if (!strcmp(cache, "yes")) { |
| return BT_GATT_CACHE_YES; |
| } else if (!strcmp(cache, "no")) { |
| return BT_GATT_CACHE_NO; |
| } else { |
| DBG("Invalid value for KeepCache=%s", cache); |
| return BT_GATT_CACHE_ALWAYS; |
| } |
| } |
| |
| static void check_options(GKeyFile *config, const char *group, |
| const char **options) |
| { |
| char **keys; |
| int i; |
| |
| keys = g_key_file_get_keys(config, group, NULL, NULL); |
| |
| for (i = 0; keys != NULL && keys[i] != NULL; i++) { |
| bool found; |
| unsigned int j; |
| |
| found = false; |
| for (j = 0; options != NULL && options[j] != NULL; j++) { |
| if (g_str_equal(keys[i], options[j])) { |
| found = true; |
| break; |
| } |
| } |
| |
| if (!found) |
| warn("Unknown key %s for group %s in %s", |
| keys[i], group, main_conf_file_path); |
| } |
| |
| g_strfreev(keys); |
| } |
| |
| static void check_config(GKeyFile *config) |
| { |
| char **keys; |
| int i; |
| const struct group_table *group; |
| |
| if (!config) |
| return; |
| |
| keys = g_key_file_get_groups(config, NULL); |
| |
| for (i = 0; keys != NULL && keys[i] != NULL; i++) { |
| bool match = false; |
| |
| for (group = valid_groups; group && group->name ; group++) { |
| if (g_str_equal(keys[i], group->name)) { |
| match = true; |
| break; |
| } |
| } |
| |
| if (!match) |
| warn("Unknown group %s in %s", keys[i], |
| main_conf_file_path); |
| } |
| |
| g_strfreev(keys); |
| |
| for (group = valid_groups; group && group->name; group++) |
| check_options(config, group->name, group->options); |
| } |
| |
| static int get_mode(const char *str) |
| { |
| if (strcmp(str, "dual") == 0) |
| return BT_MODE_DUAL; |
| else if (strcmp(str, "bredr") == 0) |
| return BT_MODE_BREDR; |
| else if (strcmp(str, "le") == 0) |
| return BT_MODE_LE; |
| |
| error("Unknown controller mode \"%s\"", str); |
| |
| return BT_MODE_DUAL; |
| } |
| |
| static void parse_config(GKeyFile *config) |
| { |
| GError *err = NULL; |
| char *str; |
| int val; |
| gboolean boolean; |
| |
| if (!config) |
| return; |
| |
| check_config(config); |
| |
| DBG("parsing %s", main_conf_file_path); |
| |
| val = g_key_file_get_integer(config, "General", |
| "DiscoverableTimeout", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else { |
| DBG("discovto=%d", val); |
| main_opts.discovto = val; |
| } |
| |
| val = g_key_file_get_integer(config, "General", |
| "PairableTimeout", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else { |
| DBG("pairto=%d", val); |
| main_opts.pairto = val; |
| } |
| |
| str = g_key_file_get_string(config, "General", "Privacy", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| main_opts.privacy = 0x00; |
| } else { |
| DBG("privacy=%s", str); |
| |
| if (!strcmp(str, "device")) |
| main_opts.privacy = 0x01; |
| else if (!strcmp(str, "off")) |
| main_opts.privacy = 0x00; |
| else { |
| DBG("Invalid privacy option: %s", str); |
| main_opts.privacy = 0x00; |
| } |
| |
| g_free(str); |
| } |
| |
| str = g_key_file_get_string(config, "General", "Name", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else { |
| DBG("name=%s", str); |
| g_free(main_opts.name); |
| main_opts.name = str; |
| } |
| |
| str = g_key_file_get_string(config, "General", "Class", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else { |
| DBG("class=%s", str); |
| main_opts.class = strtol(str, NULL, 16); |
| g_free(str); |
| } |
| |
| str = g_key_file_get_string(config, "General", "DeviceID", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else { |
| DBG("deviceid=%s", str); |
| parse_did(str); |
| g_free(str); |
| } |
| |
| boolean = g_key_file_get_boolean(config, "General", |
| "ReverseServiceDiscovery", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else |
| main_opts.reverse_sdp = boolean; |
| |
| boolean = g_key_file_get_boolean(config, "General", |
| "NameResolving", &err); |
| if (err) |
| g_clear_error(&err); |
| else |
| main_opts.name_resolv = boolean; |
| |
| boolean = g_key_file_get_boolean(config, "General", |
| "DebugKeys", &err); |
| if (err) |
| g_clear_error(&err); |
| else |
| main_opts.debug_keys = boolean; |
| |
| str = g_key_file_get_string(config, "General", "ControllerMode", &err); |
| if (err) { |
| g_clear_error(&err); |
| } else { |
| DBG("ControllerMode=%s", str); |
| main_opts.mode = get_mode(str); |
| g_free(str); |
| } |
| |
| str = g_key_file_get_string(config, "General", "MultiProfile", &err); |
| if (err) { |
| g_clear_error(&err); |
| } else { |
| DBG("MultiProfile=%s", str); |
| |
| if (!strcmp(str, "single")) |
| mps = MPS_SINGLE; |
| else if (!strcmp(str, "multiple")) |
| mps = MPS_MULTIPLE; |
| |
| g_free(str); |
| } |
| |
| boolean = g_key_file_get_boolean(config, "General", |
| "FastConnectable", &err); |
| if (err) |
| g_clear_error(&err); |
| else |
| main_opts.fast_conn = boolean; |
| |
| str = g_key_file_get_string(config, "GATT", "Cache", &err); |
| if (err) { |
| g_clear_error(&err); |
| main_opts.gatt_cache = BT_GATT_CACHE_ALWAYS; |
| } else { |
| main_opts.gatt_cache = parse_gatt_cache(str); |
| g_free(str); |
| } |
| |
| val = g_key_file_get_integer(config, "GATT", |
| "MinEncKeySize", &err); |
| if (err) { |
| DBG("%s", err->message); |
| g_clear_error(&err); |
| } else { |
| DBG("MinEncKeySize=%d", val); |
| |
| if (val >=7 && val <= 16) |
| main_opts.min_enc_key_size = val; |
| } |
| } |
| |
| static void init_defaults(void) |
| { |
| uint8_t major, minor; |
| |
| /* Default HCId settings */ |
| memset(&main_opts, 0, sizeof(main_opts)); |
| main_opts.name = g_strdup_printf("BlueZ %s", VERSION); |
| main_opts.class = 0x000000; |
| main_opts.pairto = DEFAULT_PAIRABLE_TIMEOUT; |
| main_opts.discovto = DEFAULT_DISCOVERABLE_TIMEOUT; |
| main_opts.reverse_sdp = TRUE; |
| main_opts.name_resolv = TRUE; |
| main_opts.debug_keys = FALSE; |
| |
| if (sscanf(VERSION, "%hhu.%hhu", &major, &minor) != 2) |
| return; |
| |
| main_opts.did_source = 0x0002; /* USB */ |
| main_opts.did_vendor = 0x1d6b; /* Linux Foundation */ |
| main_opts.did_product = 0x0246; /* BlueZ */ |
| main_opts.did_version = (major << 8 | minor); |
| } |
| |
| static void log_handler(const gchar *log_domain, GLogLevelFlags log_level, |
| const gchar *message, gpointer user_data) |
| { |
| int priority; |
| |
| if (log_level & (G_LOG_LEVEL_ERROR | |
| G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)) |
| priority = 0x03; |
| else |
| priority = 0x06; |
| |
| btd_log(0xffff, priority, "GLib: %s", message); |
| btd_backtrace(0xffff); |
| } |
| |
| static GMainLoop *event_loop; |
| |
| void btd_exit(void) |
| { |
| g_main_loop_quit(event_loop); |
| } |
| |
| static gboolean quit_eventloop(gpointer user_data) |
| { |
| btd_exit(); |
| return FALSE; |
| } |
| |
| static gboolean signal_handler(GIOChannel *channel, GIOCondition cond, |
| gpointer user_data) |
| { |
| static bool terminated = false; |
| struct signalfd_siginfo si; |
| ssize_t result; |
| int fd; |
| |
| if (cond & (G_IO_NVAL | G_IO_ERR | G_IO_HUP)) |
| return FALSE; |
| |
| fd = g_io_channel_unix_get_fd(channel); |
| |
| result = read(fd, &si, sizeof(si)); |
| if (result != sizeof(si)) |
| return FALSE; |
| |
| switch (si.ssi_signo) { |
| case SIGINT: |
| case SIGTERM: |
| if (!terminated) { |
| info("Terminating"); |
| g_timeout_add_seconds(SHUTDOWN_GRACE_SECONDS, |
| quit_eventloop, NULL); |
| |
| sd_notify(0, "STATUS=Powering down"); |
| adapter_shutdown(); |
| } |
| |
| terminated = true; |
| break; |
| case SIGUSR2: |
| __btd_toggle_debug(); |
| break; |
| } |
| |
| return TRUE; |
| } |
| |
| static guint setup_signalfd(void) |
| { |
| GIOChannel *channel; |
| guint source; |
| sigset_t mask; |
| int fd; |
| |
| sigemptyset(&mask); |
| sigaddset(&mask, SIGINT); |
| sigaddset(&mask, SIGTERM); |
| sigaddset(&mask, SIGUSR2); |
| |
| if (sigprocmask(SIG_BLOCK, &mask, NULL) < 0) { |
| perror("Failed to set signal mask"); |
| return 0; |
| } |
| |
| fd = signalfd(-1, &mask, 0); |
| if (fd < 0) { |
| perror("Failed to create signal descriptor"); |
| return 0; |
| } |
| |
| channel = g_io_channel_unix_new(fd); |
| |
| g_io_channel_set_close_on_unref(channel, TRUE); |
| g_io_channel_set_encoding(channel, NULL, NULL); |
| g_io_channel_set_buffered(channel, FALSE); |
| |
| source = g_io_add_watch(channel, |
| G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL, |
| signal_handler, NULL); |
| |
| g_io_channel_unref(channel); |
| |
| return source; |
| } |
| |
| static char *option_debug = NULL; |
| static char *option_plugin = NULL; |
| static char *option_noplugin = NULL; |
| static char *option_configfile = NULL; |
| static gboolean option_compat = FALSE; |
| static gboolean option_detach = TRUE; |
| static gboolean option_version = FALSE; |
| static gboolean option_experimental = FALSE; |
| |
| static void free_options(void) |
| { |
| g_free(option_debug); |
| option_debug = NULL; |
| |
| g_free(option_plugin); |
| option_plugin = NULL; |
| |
| g_free(option_noplugin); |
| option_noplugin = NULL; |
| |
| g_free(option_configfile); |
| option_configfile = NULL; |
| } |
| |
| static void disconnect_dbus(void) |
| { |
| DBusConnection *conn = btd_get_dbus_connection(); |
| |
| if (!conn || !dbus_connection_get_is_connected(conn)) |
| return; |
| |
| g_dbus_detach_object_manager(conn); |
| set_dbus_connection(NULL); |
| |
| dbus_connection_unref(conn); |
| } |
| |
| static void disconnected_dbus(DBusConnection *conn, void *data) |
| { |
| info("Disconnected from D-Bus. Exiting."); |
| g_main_loop_quit(event_loop); |
| } |
| |
| static int connect_dbus(void) |
| { |
| DBusConnection *conn; |
| DBusError err; |
| |
| dbus_error_init(&err); |
| |
| conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, BLUEZ_NAME, &err); |
| if (!conn) { |
| if (dbus_error_is_set(&err)) { |
| g_printerr("D-Bus setup failed: %s\n", err.message); |
| dbus_error_free(&err); |
| return -EIO; |
| } |
| return -EALREADY; |
| } |
| |
| set_dbus_connection(conn); |
| |
| g_dbus_set_disconnect_function(conn, disconnected_dbus, NULL, NULL); |
| g_dbus_attach_object_manager(conn); |
| |
| return 0; |
| } |
| |
| static gboolean watchdog_callback(gpointer user_data) |
| { |
| sd_notify(0, "WATCHDOG=1"); |
| |
| return TRUE; |
| } |
| |
| static gboolean parse_debug(const char *key, const char *value, |
| gpointer user_data, GError **error) |
| { |
| if (value) |
| option_debug = g_strdup(value); |
| else |
| option_debug = g_strdup("*"); |
| |
| return TRUE; |
| } |
| |
| static GOptionEntry options[] = { |
| { "debug", 'd', G_OPTION_FLAG_OPTIONAL_ARG, |
| G_OPTION_ARG_CALLBACK, parse_debug, |
| "Specify debug options to enable", "DEBUG" }, |
| { "plugin", 'p', 0, G_OPTION_ARG_STRING, &option_plugin, |
| "Specify plugins to load", "NAME,..," }, |
| { "noplugin", 'P', 0, G_OPTION_ARG_STRING, &option_noplugin, |
| "Specify plugins not to load", "NAME,..." }, |
| { "configfile", 'f', 0, G_OPTION_ARG_STRING, &option_configfile, |
| "Specify an explicit path to the config file", "FILE"}, |
| { "compat", 'C', 0, G_OPTION_ARG_NONE, &option_compat, |
| "Provide deprecated command line interfaces" }, |
| { "experimental", 'E', 0, G_OPTION_ARG_NONE, &option_experimental, |
| "Enable experimental interfaces" }, |
| { "nodetach", 'n', G_OPTION_FLAG_REVERSE, |
| G_OPTION_ARG_NONE, &option_detach, |
| "Run with logging in foreground" }, |
| { "version", 'v', 0, G_OPTION_ARG_NONE, &option_version, |
| "Show version information and exit" }, |
| { NULL }, |
| }; |
| |
| int main(int argc, char *argv[]) |
| { |
| GOptionContext *context; |
| GError *err = NULL; |
| uint16_t sdp_mtu = 0; |
| uint32_t sdp_flags = 0; |
| int gdbus_flags = 0; |
| guint signal, watchdog; |
| const char *watchdog_usec; |
| |
| init_defaults(); |
| |
| context = g_option_context_new(NULL); |
| g_option_context_add_main_entries(context, options, NULL); |
| |
| if (g_option_context_parse(context, &argc, &argv, &err) == FALSE) { |
| if (err != NULL) { |
| g_printerr("%s\n", err->message); |
| g_error_free(err); |
| } else |
| g_printerr("An unknown error occurred\n"); |
| exit(1); |
| } |
| |
| g_option_context_free(context); |
| |
| if (option_version == TRUE) { |
| printf("%s\n", VERSION); |
| exit(0); |
| } |
| |
| umask(0077); |
| |
| btd_backtrace_init(); |
| |
| event_loop = g_main_loop_new(NULL, FALSE); |
| |
| signal = setup_signalfd(); |
| |
| __btd_log_init(option_debug, option_detach); |
| |
| g_log_set_handler("GLib", G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | |
| G_LOG_FLAG_RECURSION, |
| log_handler, NULL); |
| |
| sd_notify(0, "STATUS=Starting up"); |
| |
| if (option_configfile) |
| main_conf_file_path = option_configfile; |
| else |
| main_conf_file_path = CONFIGDIR "/main.conf"; |
| |
| main_conf = load_config(main_conf_file_path); |
| |
| parse_config(main_conf); |
| |
| if (connect_dbus() < 0) { |
| error("Unable to get on D-Bus"); |
| exit(1); |
| } |
| |
| if (option_experimental) |
| gdbus_flags = G_DBUS_FLAG_ENABLE_EXPERIMENTAL; |
| |
| g_dbus_set_flags(gdbus_flags); |
| |
| if (adapter_init() < 0) { |
| error("Adapter handling initialization failed"); |
| exit(1); |
| } |
| |
| btd_device_init(); |
| btd_agent_init(); |
| btd_profile_init(); |
| |
| if (main_opts.mode != BT_MODE_LE) { |
| if (option_compat == TRUE) |
| sdp_flags |= SDP_SERVER_COMPAT; |
| |
| start_sdp_server(sdp_mtu, sdp_flags); |
| |
| if (main_opts.did_source > 0) |
| register_device_id(main_opts.did_source, |
| main_opts.did_vendor, |
| main_opts.did_product, |
| main_opts.did_version); |
| } |
| |
| if (mps != MPS_OFF) |
| register_mps(mps == MPS_MULTIPLE); |
| |
| /* Loading plugins has to be done after D-Bus has been setup since |
| * the plugins might wanna expose some paths on the bus. However the |
| * best order of how to init various subsystems of the Bluetooth |
| * daemon needs to be re-worked. */ |
| plugin_init(option_plugin, option_noplugin); |
| |
| /* no need to keep parsed option in memory */ |
| free_options(); |
| |
| rfkill_init(); |
| |
| DBG("Entering main loop"); |
| |
| sd_notify(0, "STATUS=Running"); |
| sd_notify(0, "READY=1"); |
| |
| watchdog_usec = getenv("WATCHDOG_USEC"); |
| if (watchdog_usec) { |
| unsigned int seconds; |
| |
| seconds = atoi(watchdog_usec) / (1000 * 1000); |
| info("Watchdog timeout is %d seconds", seconds); |
| |
| watchdog = g_timeout_add_seconds_full(G_PRIORITY_HIGH, |
| seconds / 2, |
| watchdog_callback, |
| NULL, NULL); |
| } else |
| watchdog = 0; |
| |
| g_main_loop_run(event_loop); |
| |
| sd_notify(0, "STATUS=Quitting"); |
| |
| g_source_remove(signal); |
| |
| plugin_cleanup(); |
| |
| btd_profile_cleanup(); |
| btd_agent_cleanup(); |
| btd_device_cleanup(); |
| |
| adapter_cleanup(); |
| |
| rfkill_exit(); |
| |
| if (main_opts.mode != BT_MODE_LE) |
| stop_sdp_server(); |
| |
| g_main_loop_unref(event_loop); |
| |
| if (main_conf) |
| g_key_file_free(main_conf); |
| |
| disconnect_dbus(); |
| |
| info("Exit"); |
| |
| if (watchdog > 0) |
| g_source_remove(watchdog); |
| |
| __btd_log_cleanup(); |
| |
| return 0; |
| } |