[PATCH 1/2] Add generic bluetooth manager

This manager is responsible for handle DBus for the Bluetooth profiles. Each Bluetooth profile can register callbacks for create a modem, remove all modems and set_alias. The idea is to have here soon code the handle Bluetooth Agent stuff too. --- Makefile.am | 6 +- include/bluetooth.h | 48 +++++ plugins/hfp.c | 539 +++++++------------------------------------------- src/bluetooth.c | 554 +++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 677 insertions(+), 470 deletions(-) create mode 100644 include/bluetooth.h create mode 100644 src/bluetooth.c diff --git a/Makefile.am b/Makefile.am index 463e52e..501f4bd 100644 --- a/Makefile.am +++ b/Makefile.am @@ -12,7 +12,8 @@ include_HEADERS = include/log.h include/plugin.h include/history.h \ include/netreg.h include/voicecall.h include/devinfo.h \ include/cbs.h include/call-volume.h \ include/gprs.h include/gprs-context.h \ - include/radio-settings.h include/stk.h + include/radio-settings.h include/stk.h \ + include/bluetooth.h nodist_include_HEADERS = include/version.h @@ -259,7 +260,8 @@ src_ofonod_SOURCES = $(gdbus_sources) $(builtin_sources) \ src/simutil.h src/simutil.c src/storage.h \ src/storage.c src/cbs.c src/watch.c src/call-volume.c \ src/gprs.c src/idmap.h src/idmap.c \ - src/radio-settings.c src/stkutil.h src/stkutil.c + src/radio-settings.c src/stkutil.h src/stkutil.c \ + src/bluetooth.c src_ofonod_LDADD = $(builtin_libadd) @GLIB_LIBS@ @DBUS_LIBS@ @CAPNG_LIBS@ -ldl diff --git a/include/bluetooth.h b/include/bluetooth.h new file mode 100644 index 0000000..db3663e --- /dev/null +++ b/include/bluetooth.h @@ -0,0 +1,48 @@ +/* + * oFono - Open Source Telephony + * + * Copyright (C) 2010 Gustavo F. Padovan <gustavo(a)padovan.org&gt; + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 + * + */ + +#ifndef __BLUETOOTH_H +#define __BLUETOOTH_H + +#define BLUEZ_SERVICE "org.bluez" +#define BLUEZ_MANAGER_INTERFACE BLUEZ_SERVICE ".Manager" +#define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter" +#define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device" + +#define HFP_AG_UUID "0000111F-0000-1000-8000-00805F9B34FB" +#define DUN_GW_UUID "00001103-0000-1000-8000-00805F9B34FB" + +/* Profiles bitfield */ +#define HFP_AG 0x01 +#define DUN_GW 0x02 + +struct bluetooth_profile { + const char *name; + int (*create)(const char *device, const char *dev_addr, const char *adapter_addr, const char *alias); + /* FIXME: remove() or remove_all() */ + void (*remove_all)(); + void (*set_alias)(const char *device, const char *); +}; + +int bluetooth_register_uuid(const char *uuid, struct bluetooth_profile *profile); +void bluetooth_unregister_uuid(const char *uuid); + + +#endif /* __BLUETOOTH_H */ diff --git a/plugins/hfp.c b/plugins/hfp.c index e37c9fc..d669b84 100644 --- a/plugins/hfp.c +++ b/plugins/hfp.c @@ -45,17 +45,13 @@ #include <ofono/dbus.h> -#define BLUEZ_SERVICE "org.bluez" -#define BLUEZ_MANAGER_INTERFACE BLUEZ_SERVICE ".Manager" -#define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter" -#define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device" +#include <ofono/bluetooth.h> + #define BLUEZ_GATEWAY_INTERFACE BLUEZ_SERVICE ".HandsfreeGateway" #define HFP_AGENT_INTERFACE "org.bluez.HandsfreeAgent" #define HFP_AGENT_ERROR_INTERFACE "org.bluez.Error" -#define HFP_AG_UUID "0000111F-0000-1000-8000-00805F9B34FB" - #ifndef DBUS_TYPE_UNIX_FD #define DBUS_TYPE_UNIX_FD -1 #endif @@ -66,8 +62,7 @@ static const char *cmer_prefix[] = { "+CMER:", NULL }; static const char *chld_prefix[] = { "+CHLD:", NULL }; static DBusConnection *connection; -static GHashTable *uuid_hash = NULL; -static GHashTable *adapter_address_hash; +static GHashTable *modem_hash = NULL; static void hfp_debug(const char *str, void *user_data) { @@ -183,33 +178,11 @@ static void cmer_cb(gboolean ok, GAtResult *result, gpointer user_data) sevice_level_conn_established(modem); } -static int send_method_call(const char *dest, const char *path, - const char *interface, const char *method, - int type, ...) -{ - DBusMessage *msg; - va_list args; - - msg = dbus_message_new_method_call(dest, path, interface, method); - if (!msg) { - ofono_error("Unable to allocate new D-Bus %s message", method); - return -ENOMEM; - } - - va_start(args, type); - - if (!dbus_message_append_args_valist(msg, type, args)) { - dbus_message_unref(msg); - va_end(args); - return -EIO; - } - - va_end(args); - - g_dbus_send_message(connection, msg); - return 0; -} - +/* + * FIXME: Group all agent stuff DBus calls in bluetooth.c + *then we can reuse common agent code for all Bluetooth plugins. + This will remove this function from here. + */ static int send_method_call_with_reply(const char *dest, const char *path, const char *interface, const char *method, DBusPendingCallNotifyFunction cb, @@ -263,101 +236,6 @@ fail: return err; } -typedef void (*PropertyHandler)(DBusMessageIter *iter, gpointer user_data); - -struct property_handler { - const char *property; - PropertyHandler callback; - gpointer user_data; -}; - -static gint property_handler_compare(gconstpointer a, gconstpointer b) -{ - const struct property_handler *handler = a; - const char *property = b; - - return strcmp(handler->property, property); -} - -static void parse_properties_reply(DBusMessage *reply, - const char *property, ...) -{ - va_list args; - GSList *prop_handlers = NULL; - DBusMessageIter array, dict; - - va_start(args, property); - - while (property != NULL) { - struct property_handler *handler = - g_new0(struct property_handler, 1); - - handler->property = property; - handler->callback = va_arg(args, PropertyHandler); - handler->user_data = va_arg(args, gpointer); - - property = va_arg(args, const char *); - - prop_handlers = g_slist_prepend(prop_handlers, handler); - } - - va_end(args); - - if (dbus_message_iter_init(reply, &array) == FALSE) - goto done; - - if (dbus_message_iter_get_arg_type(&array) != DBUS_TYPE_ARRAY) - goto done; - - dbus_message_iter_recurse(&array, &dict); - - while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) { - DBusMessageIter entry, value; - const char *key; - GSList *l; - - dbus_message_iter_recurse(&dict, &entry); - - if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING) - goto done; - - dbus_message_iter_get_basic(&entry, &key); - - dbus_message_iter_next(&entry); - - if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_VARIANT) - goto done; - - dbus_message_iter_recurse(&entry, &value); - - l = g_slist_find_custom(prop_handlers, key, - property_handler_compare); - - if (l) { - struct property_handler *handler = l->data; - - handler->callback(&value, handler->user_data); - } - - dbus_message_iter_next(&dict); - } - -done: - g_slist_foreach(prop_handlers, (GFunc)g_free, NULL); - g_slist_free(prop_handlers); -} - -static void parse_string(DBusMessageIter *iter, gpointer user_data) -{ - char **str = user_data; - int arg_type = dbus_message_iter_get_arg_type(iter); - - if (arg_type != DBUS_TYPE_OBJECT_PATH && arg_type != DBUS_TYPE_STRING) - return; - - dbus_message_iter_get_basic(iter, str); -} - static void cind_status_cb(gboolean ok, GAtResult *result, gpointer user_data) { @@ -600,6 +478,10 @@ static int hfp_create_modem(const char *device, const char *dev_addr, struct hfp_data *data; char buf[256]; + /* We already have this device in our hash, ignore */ + if (g_hash_table_lookup(modem_hash, device) != NULL) + return -EALREADY; + ofono_info("Using device: %s, devaddr: %s, adapter: %s", device, dev_addr, adapter_addr); @@ -628,7 +510,7 @@ static int hfp_create_modem(const char *device, const char *dev_addr, ofono_modem_set_name(modem, alias); ofono_modem_register(modem); - g_hash_table_insert(uuid_hash, g_strdup(device), modem); + g_hash_table_insert(modem_hash, g_strdup(device), modem); return 0; @@ -639,312 +521,75 @@ free: return -ENOMEM; } -static void has_hfp_uuid(DBusMessageIter *array, gpointer user_data) -{ - gboolean *hfp = user_data; - DBusMessageIter value; - - if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) - return; - - dbus_message_iter_recurse(array, &value); - - while (dbus_message_iter_get_arg_type(&value) == DBUS_TYPE_STRING) { - const char *uuid; - - dbus_message_iter_get_basic(&value, &uuid); - - if (!strcasecmp(uuid, HFP_AG_UUID)) { - *hfp = TRUE; - return; - } - - dbus_message_iter_next(&value); - } -} - -static void device_properties_cb(DBusPendingCall *call, gpointer user_data) -{ - DBusMessage *reply; - char *path = user_data; - gboolean have_hfp = FALSE; - const char *adapter = NULL; - const char *adapter_addr = NULL; - const char *device_addr = NULL; - const char *alias = NULL; - - reply = dbus_pending_call_steal_reply(call); - - if (dbus_message_is_error(reply, DBUS_ERROR_SERVICE_UNKNOWN)) { - DBG("Bluetooth daemon is apparently not available."); - goto done; - } - - if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) { - if (!dbus_message_is_error(reply, DBUS_ERROR_UNKNOWN_METHOD)) - ofono_info("Error from GetProperties reply: %s", - dbus_message_get_error_name(reply)); - - goto done; - } - - parse_properties_reply(reply, "UUIDs", has_hfp_uuid, &have_hfp, - "Adapter", parse_string, &adapter, - "Address", parse_string, &device_addr, - "Alias", parse_string, &alias, NULL); - - if (adapter) - adapter_addr = g_hash_table_lookup(adapter_address_hash, - adapter); - - if (have_hfp && device_addr && adapter_addr) - hfp_create_modem(path, device_addr, adapter_addr, alias); - -done: - dbus_message_unref(reply); -} - -static void parse_devices(DBusMessageIter *array, gpointer user_data) -{ - DBusMessageIter value; - GSList **device_list = user_data; - - DBG(""); - - if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) - return; - - dbus_message_iter_recurse(array, &value); - - while (dbus_message_iter_get_arg_type(&value) - == DBUS_TYPE_OBJECT_PATH) { - const char *path; - - dbus_message_iter_get_basic(&value, &path); - - *device_list = g_slist_prepend(*device_list, (gpointer) path); - - dbus_message_iter_next(&value); - } -} - -static void adapter_properties_cb(DBusPendingCall *call, gpointer user_data) -{ - const char *path = user_data; - DBusMessage *reply; - GSList *device_list = NULL; - GSList *l; - const char *addr; - - reply = dbus_pending_call_steal_reply(call); - - if (dbus_message_is_error(reply, DBUS_ERROR_SERVICE_UNKNOWN)) { - DBG("Bluetooth daemon is apparently not available."); - goto done; - } - - parse_properties_reply(reply, "Devices", parse_devices, &device_list, - "Address", parse_string, &addr, NULL); - - DBG("Adapter Address: %s, Path: %s", addr, path); - g_hash_table_insert(adapter_address_hash, - g_strdup(path), g_strdup(addr)); - - for (l = device_list; l; l = l->next) { - const char *device = l->data; - - send_method_call_with_reply(BLUEZ_SERVICE, device, - BLUEZ_DEVICE_INTERFACE, "GetProperties", - device_properties_cb, g_strdup(device), g_free, - -1, DBUS_TYPE_INVALID); - } - -done: - g_slist_free(device_list); - dbus_message_unref(reply); -} - -static gboolean adapter_added(DBusConnection *connection, DBusMessage *message, - void *user_data) -{ - const char *path; - int ret; - - dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, - DBUS_TYPE_INVALID); - - ret = send_method_call_with_reply(BLUEZ_SERVICE, path, - BLUEZ_ADAPTER_INTERFACE, "GetProperties", - adapter_properties_cb, g_strdup(path), g_free, - -1, DBUS_TYPE_INVALID); - - return TRUE; -} - -static gboolean adapter_removed(DBusConnection *connection, - DBusMessage *message, void *user_data) -{ - const char *path; - - if (dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, - DBUS_TYPE_INVALID) == TRUE) - g_hash_table_remove(adapter_address_hash, path); - - return TRUE; -} - -static gboolean property_changed(DBusConnection *connection, DBusMessage *msg, - void *user_data) +static gboolean hfp_remove_each_modem(gpointer key, gpointer value, gpointer user_data) { - const char *property; - DBusMessageIter iter; - - dbus_message_iter_init(msg, &iter); - - if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) - return FALSE; - - dbus_message_iter_get_basic(&iter, &property); - if (g_str_equal(property, "UUIDs") == TRUE) { - gboolean have_hfp = FALSE; - const char *path = dbus_message_get_path(msg); - DBusMessageIter variant; - - /* We already have this device in our hash, ignore */ - if (g_hash_table_lookup(uuid_hash, path) != NULL) - return TRUE; - - if (!dbus_message_iter_next(&iter)) - return FALSE; - - if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) - return FALSE; - - dbus_message_iter_recurse(&iter, &variant); - - has_hfp_uuid(&variant, &have_hfp); - - /* We need the full set of properties to be able to create - * the modem properly, including Adapter and Alias, so - * refetch everything again - */ - if (have_hfp) - send_method_call_with_reply(BLUEZ_SERVICE, path, - BLUEZ_DEVICE_INTERFACE, "GetProperties", - device_properties_cb, g_strdup(path), g_free, - -1, DBUS_TYPE_INVALID); - } else if (g_str_equal(property, "Alias") == TRUE) { - const char *path = dbus_message_get_path(msg); - struct ofono_modem *modem = - g_hash_table_lookup(uuid_hash, path); - const char *alias = NULL; - DBusMessageIter variant; - - if (modem == NULL) - return TRUE; - - if (!dbus_message_iter_next(&iter)) - return FALSE; - - if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) - return FALSE; - - dbus_message_iter_recurse(&iter, &variant); - - parse_string(&variant, &alias); + struct ofono_modem *modem = value; - ofono_modem_set_name(modem, alias); - } + ofono_modem_remove(modem); return TRUE; } -static void parse_adapters(DBusMessageIter *array, gpointer user_data) +static void hfp_remove_all_modem() { - DBusMessageIter value; - - DBG(""); - - if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) + if (modem_hash == NULL) return; - dbus_message_iter_recurse(array, &value); - - while (dbus_message_iter_get_arg_type(&value) - == DBUS_TYPE_OBJECT_PATH) { - const char *path; - - dbus_message_iter_get_basic(&value, &path); - - DBG("Calling GetProperties on %s", path); - - send_method_call_with_reply(BLUEZ_SERVICE, path, - BLUEZ_ADAPTER_INTERFACE, "GetProperties", - adapter_properties_cb, g_strdup(path), g_free, - -1, DBUS_TYPE_INVALID); - - dbus_message_iter_next(&value); - } -} - -static void manager_properties_cb(DBusPendingCall *call, gpointer user_data) -{ - DBusMessage *reply; - - reply = dbus_pending_call_steal_reply(call); - - if (dbus_message_is_error(reply, DBUS_ERROR_SERVICE_UNKNOWN)) { - DBG("Bluetooth daemon is apparently not available."); - goto done; - } - - parse_properties_reply(reply, "Adapters", parse_adapters, NULL, NULL); - -done: - dbus_message_unref(reply); + g_hash_table_foreach_remove(modem_hash, hfp_remove_each_modem, NULL); } -static gboolean hfp_remove_each_modem(gpointer key, gpointer value, gpointer user_data) +static void hfp_set_alias(const char *device, const char *alias) { - struct ofono_modem *modem = value; - - ofono_modem_remove(modem); + struct ofono_modem *modem; - return TRUE; -} + if (!device || !alias) + return; -static void bluetooth_disconnect(DBusConnection *connection, void *user_data) -{ - if (uuid_hash == NULL) + modem = g_hash_table_lookup(modem_hash, device); + if (!modem) return; - g_hash_table_foreach_remove(uuid_hash, hfp_remove_each_modem, NULL); + ofono_modem_set_name(modem, alias); } static int hfp_register_ofono_handsfree(struct ofono_modem *modem) { const char *obj_path = ofono_modem_get_path(modem); struct hfp_data *data = ofono_modem_get_data(modem); + DBusMessage *msg; DBG("Registering oFono Agent to bluetooth daemon"); - return send_method_call(BLUEZ_SERVICE, data->handsfree_path, - BLUEZ_GATEWAY_INTERFACE, "RegisterAgent", - DBUS_TYPE_OBJECT_PATH, &obj_path, + msg = dbus_message_new_method_call(BLUEZ_SERVICE, data->handsfree_path, + BLUEZ_GATEWAY_INTERFACE, "RegisterAgent"); + if (!msg) + return -ENOMEM; + + dbus_message_append_args(msg, DBUS_TYPE_OBJECT_PATH, &obj_path, DBUS_TYPE_INVALID); + + g_dbus_send_message(connection, msg); + return 0; } static int hfp_unregister_ofono_handsfree(struct ofono_modem *modem) { const char *obj_path = ofono_modem_get_path(modem); struct hfp_data *data = ofono_modem_get_data(modem); + DBusMessage *msg; DBG("Unregistering oFono Agent from bluetooth daemon"); - return send_method_call(BLUEZ_SERVICE, data->handsfree_path, - BLUEZ_GATEWAY_INTERFACE, "UnregisterAgent", - DBUS_TYPE_OBJECT_PATH, &obj_path, + msg = dbus_message_new_method_call(BLUEZ_SERVICE, data->handsfree_path, + BLUEZ_GATEWAY_INTERFACE, "UnregisterAgent"); + if (!msg) + return -ENOMEM; + + dbus_message_append_args(msg, DBUS_TYPE_OBJECT_PATH, &obj_path, DBUS_TYPE_INVALID); + + g_dbus_send_message(connection, msg); + return 0; } static int hfp_probe(struct ofono_modem *modem) @@ -975,7 +620,7 @@ static void hfp_remove(struct ofono_modem *modem) HFP_AGENT_INTERFACE)) hfp_unregister_ofono_handsfree(modem); - g_hash_table_remove(uuid_hash, data->handsfree_path); + g_hash_table_remove(modem_hash, data->handsfree_path); g_free(data->handsfree_path); g_free(data); @@ -988,8 +633,7 @@ static void hfp_connect_reply(DBusPendingCall *call, gpointer user_data) struct ofono_modem *modem = user_data; struct hfp_data *data = ofono_modem_get_data(modem); DBusError derr; - DBusMessage *reply; - int ret; + DBusMessage *reply, *msg; reply = dbus_pending_call_steal_reply(call); @@ -1003,11 +647,13 @@ static void hfp_connect_reply(DBusPendingCall *call, gpointer user_data) DBG("Connect reply: %s", derr.message); if (dbus_error_has_name(&derr, DBUS_ERROR_NO_REPLY)) { - ret = send_method_call(BLUEZ_SERVICE, data->handsfree_path, - BLUEZ_GATEWAY_INTERFACE, "Disconnect", - DBUS_TYPE_INVALID); - if (ret < 0) - ofono_error("Disconnect failed(%d)", ret); + msg = dbus_message_new_method_call(BLUEZ_SERVICE, + data->handsfree_path, + BLUEZ_GATEWAY_INTERFACE, "Disconnect"); + if (!msg) + ofono_error("Disconnect failed"); + else + g_dbus_send_message(connection, msg); } ofono_modem_set_powered(modem, FALSE); @@ -1108,10 +754,12 @@ static struct ofono_modem_driver hfp_driver = { .post_sim = hfp_post_sim, }; -static guint bluetooth_exit_watch; -static guint adapter_added_watch; -static guint adapter_removed_watch; -static guint uuid_watch; +static struct bluetooth_profile hfp_profile = { + .name = "hfp", + .create = hfp_create_modem, + .remove_all = hfp_remove_all_modem, + .set_alias = hfp_set_alias, +}; static int hfp_init() { @@ -1122,73 +770,28 @@ static int hfp_init() connection = ofono_dbus_get_connection(); - bluetooth_exit_watch = g_dbus_add_service_watch(connection, BLUEZ_SERVICE, - NULL, bluetooth_disconnect, NULL, NULL); - - adapter_added_watch = g_dbus_add_signal_watch(connection, NULL, NULL, - BLUEZ_MANAGER_INTERFACE, - "AdapterAdded", - adapter_added, NULL, NULL); - - adapter_removed_watch = g_dbus_add_signal_watch(connection, NULL, NULL, - BLUEZ_MANAGER_INTERFACE, - "AdapterRemoved", - adapter_removed, NULL, NULL); - - uuid_watch = g_dbus_add_signal_watch(connection, NULL, NULL, - BLUEZ_DEVICE_INTERFACE, - "PropertyChanged", - property_changed, NULL, NULL); + err = ofono_modem_driver_register(&hfp_driver); + if (err < 0) + return err; - if (bluetooth_exit_watch == 0 || adapter_added_watch == 0 || - adapter_removed_watch == 0|| uuid_watch == 0) { - err = -EIO; - goto remove; + err = bluetooth_register_uuid(HFP_AG_UUID, &hfp_profile); + if (err < 0) { + ofono_modem_driver_unregister(&hfp_driver); + return err; } - uuid_hash = g_hash_table_new_full(g_str_hash, g_str_equal, + modem_hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL); - adapter_address_hash = g_hash_table_new_full(g_str_hash, g_str_equal, - g_free, g_free); - - err = ofono_modem_driver_register(&hfp_driver); - if (err < 0) - goto remove; - - send_method_call_with_reply(BLUEZ_SERVICE, "/", - BLUEZ_MANAGER_INTERFACE, "GetProperties", - manager_properties_cb, NULL, NULL, -1, - DBUS_TYPE_INVALID); - return 0; - -remove: - g_dbus_remove_watch(connection, bluetooth_exit_watch); - g_dbus_remove_watch(connection, adapter_added_watch); - g_dbus_remove_watch(connection, adapter_removed_watch); - g_dbus_remove_watch(connection, uuid_watch); - - if (uuid_hash) - g_hash_table_destroy(uuid_hash); - - if (adapter_address_hash) - g_hash_table_destroy(adapter_address_hash); - - return err; } static void hfp_exit() { - g_dbus_remove_watch(connection, bluetooth_exit_watch); - g_dbus_remove_watch(connection, adapter_added_watch); - g_dbus_remove_watch(connection, adapter_removed_watch); - g_dbus_remove_watch(connection, uuid_watch); - + bluetooth_unregister_uuid(HFP_AG_UUID); ofono_modem_driver_unregister(&hfp_driver); - g_hash_table_destroy(uuid_hash); - g_hash_table_destroy(adapter_address_hash); + g_hash_table_destroy(modem_hash); } OFONO_PLUGIN_DEFINE(hfp, "Hands-Free Profile Plugins", VERSION, diff --git a/src/bluetooth.c b/src/bluetooth.c new file mode 100644 index 0000000..256ef4f --- /dev/null +++ b/src/bluetooth.c @@ -0,0 +1,554 @@ +/* + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2010 Intel Corporation. All rights reserved. + * Copyright (C) 2010 ProFUSION embedded systems + * Copyright (C) 2010 Gustavo F. Padovan <gustavo(a)padovan.org&gt; + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <glib.h> +#include <gdbus.h> +#include <ofono.h> + +#include <ofono/dbus.h> +#include <ofono/bluetooth.h> + +static DBusConnection *connection; +static GHashTable *uuid_hash = NULL; +static GHashTable *adapter_address_hash = NULL; + +static int refcnt = 0; + +static int send_method_call_with_reply(const char *dest, const char *path, + const char *interface, const char *method, + DBusPendingCallNotifyFunction cb, + void *user_data, DBusFreeFunction free_func, + int timeout, int type, ...) +{ + DBusMessage *msg; + DBusPendingCall *call; + va_list args; + int err; + + msg = dbus_message_new_method_call(dest, path, interface, method); + if (!msg) { + ofono_error("Unable to allocate new D-Bus %s message", method); + err = -ENOMEM; + goto fail; + } + + va_start(args, type); + + if (!dbus_message_append_args_valist(msg, type, args)) { + va_end(args); + err = -EIO; + goto fail; + } + + va_end(args); + + if (timeout > 0) + timeout *=1000; + + if (!dbus_connection_send_with_reply(connection, msg, &call, timeout)) { + ofono_error("Sending %s failed", method); + err = -EIO; + goto fail; + } + + dbus_pending_call_set_notify(call, cb, user_data, free_func); + dbus_pending_call_unref(call); + dbus_message_unref(msg); + + return 0; + +fail: + if (free_func && user_data) + free_func(user_data); + + if (msg) + dbus_message_unref(msg); + + return err; +} + +typedef void (*PropertyHandler)(DBusMessageIter *iter, gpointer user_data); + +struct property_handler { + const char *property; + PropertyHandler callback; + gpointer user_data; +}; + +static gint property_handler_compare(gconstpointer a, gconstpointer b) +{ + const struct property_handler *handler = a; + const char *property = b; + + return strcmp(handler->property, property); +} + +static void parse_properties_reply(DBusMessage *reply, + const char *property, ...) +{ + va_list args; + GSList *prop_handlers = NULL; + DBusMessageIter array, dict; + + va_start(args, property); + + while (property != NULL) { + struct property_handler *handler = + g_new0(struct property_handler, 1); + + handler->property = property; + handler->callback = va_arg(args, PropertyHandler); + handler->user_data = va_arg(args, gpointer); + + property = va_arg(args, const char *); + + prop_handlers = g_slist_prepend(prop_handlers, handler); + } + + va_end(args); + + if (dbus_message_iter_init(reply, &array) == FALSE) + goto done; + + if (dbus_message_iter_get_arg_type(&array) != DBUS_TYPE_ARRAY) + goto done; + + dbus_message_iter_recurse(&array, &dict); + + while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) { + DBusMessageIter entry, value; + const char *key; + GSList *l; + + dbus_message_iter_recurse(&dict, &entry); + + if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING) + goto done; + + dbus_message_iter_get_basic(&entry, &key); + + dbus_message_iter_next(&entry); + + if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_VARIANT) + goto done; + + dbus_message_iter_recurse(&entry, &value); + + l = g_slist_find_custom(prop_handlers, key, + property_handler_compare); + + if (l) { + struct property_handler *handler = l->data; + + handler->callback(&value, handler->user_data); + } + + dbus_message_iter_next(&dict); + } + +done: + g_slist_foreach(prop_handlers, (GFunc)g_free, NULL); + g_slist_free(prop_handlers); +} + +static void has_uuid(DBusMessageIter *array, gpointer user_data) +{ + gboolean *profiles = user_data; + DBusMessageIter value; + + if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) + return; + + dbus_message_iter_recurse(array, &value); + + while (dbus_message_iter_get_arg_type(&value) == DBUS_TYPE_STRING) { + const char *uuid; + + dbus_message_iter_get_basic(&value, &uuid); + + if (!strcasecmp(uuid, HFP_AG_UUID)) + *profiles |= HFP_AG; + + if (!strcasecmp(uuid, DUN_GW_UUID)) + *profiles |= DUN_GW; + + dbus_message_iter_next(&value); + } +} + +static void parse_string(DBusMessageIter *iter, gpointer user_data) +{ + char **str = user_data; + int arg_type = dbus_message_iter_get_arg_type(iter); + + if (arg_type != DBUS_TYPE_OBJECT_PATH && arg_type != DBUS_TYPE_STRING) + return; + + dbus_message_iter_get_basic(iter, str); +} + +static void device_properties_cb(DBusPendingCall *call, gpointer user_data) +{ + DBusMessage *reply; + int have_uuid = 0; + const char *path = user_data; + const char *adapter = NULL; + const char *adapter_addr = NULL; + const char *device_addr = NULL; + const char *alias = NULL; + struct bluetooth_profile *profile; + + reply = dbus_pending_call_steal_reply(call); + + if (dbus_message_is_error(reply, DBUS_ERROR_SERVICE_UNKNOWN)) { + DBG("Bluetooth daemon is apparently not available."); + goto done; + } + + if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) { + if (!dbus_message_is_error(reply, DBUS_ERROR_UNKNOWN_METHOD)) + ofono_info("Error from GetProperties reply: %s", + dbus_message_get_error_name(reply)); + + goto done; + } + + parse_properties_reply(reply, "UUIDs", has_uuid, &have_uuid, + "Adapter", parse_string, &adapter, + "Address", parse_string, &device_addr, + "Alias", parse_string, &alias, NULL); + + if (adapter) + adapter_addr = g_hash_table_lookup(adapter_address_hash, + adapter); + + if ((have_uuid & HFP_AG) && device_addr && adapter_addr) { + profile = g_hash_table_lookup(uuid_hash, HFP_AG_UUID); + profile->create(path, device_addr, adapter_addr, alias); + } + +done: + dbus_message_unref(reply); +} + +static void parse_devices(DBusMessageIter *array, gpointer user_data) +{ + DBusMessageIter value; + GSList **device_list = user_data; + + DBG(""); + + if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) + return; + + dbus_message_iter_recurse(array, &value); + + while (dbus_message_iter_get_arg_type(&value) + == DBUS_TYPE_OBJECT_PATH) { + const char *path; + + dbus_message_iter_get_basic(&value, &path); + + *device_list = g_slist_prepend(*device_list, (gpointer) path); + + dbus_message_iter_next(&value); + } +} + +static gboolean property_changed(DBusConnection *connection, DBusMessage *msg, + void *user_data) +{ + const char *property; + DBusMessageIter iter; + + dbus_message_iter_init(msg, &iter); + + if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) + return FALSE; + + dbus_message_iter_get_basic(&iter, &property); + if (g_str_equal(property, "UUIDs") == TRUE) { + int profiles = 0; + const char *path = dbus_message_get_path(msg); + DBusMessageIter variant; + + + if (!dbus_message_iter_next(&iter)) + return FALSE; + + if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) + return FALSE; + + dbus_message_iter_recurse(&iter, &variant); + + has_uuid(&variant, &profiles); + + /* We need the full set of properties to be able to create + * the modem properly, including Adapter and Alias, so + * refetch everything again + */ + if (profiles) + send_method_call_with_reply(BLUEZ_SERVICE, path, + BLUEZ_DEVICE_INTERFACE, "GetProperties", + device_properties_cb, g_strdup(path), g_free, + -1, DBUS_TYPE_INVALID); + } else if (g_str_equal(property, "Alias") == TRUE) { + const char *path = dbus_message_get_path(msg); + struct bluetooth_profile *profile; + const char *alias = NULL; + DBusMessageIter variant; + GHashTableIter hash_iter; + gpointer key, value; + + if (!dbus_message_iter_next(&iter)) + return FALSE; + + if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) + return FALSE; + + dbus_message_iter_recurse(&iter, &variant); + + parse_string(&variant, &alias); + + g_hash_table_iter_init (&hash_iter, uuid_hash); + while (g_hash_table_iter_next(&hash_iter, &key, &value)) + { + profile = value; + profile->set_alias(path, alias); + } + } + + return TRUE; +} + +static void adapter_properties_cb(DBusPendingCall *call, gpointer user_data) +{ + const char *path = user_data; + DBusMessage *reply; + GSList *device_list = NULL; + GSList *l; + const char *addr; + + reply = dbus_pending_call_steal_reply(call); + + if (dbus_message_is_error(reply, DBUS_ERROR_SERVICE_UNKNOWN)) { + DBG("Bluetooth daemon is apparently not available."); + goto done; + } + + parse_properties_reply(reply, "Devices", parse_devices, &device_list, + "Address", parse_string, &addr, NULL); + + DBG("Adapter Address: %s, Path: %s", addr, path); + g_hash_table_insert(adapter_address_hash, + g_strdup(path), g_strdup(addr)); + + for (l = device_list; l; l = l->next) { + const char *device = l->data; + + send_method_call_with_reply(BLUEZ_SERVICE, device, + BLUEZ_DEVICE_INTERFACE, "GetProperties", + device_properties_cb, g_strdup(device), g_free, + -1, DBUS_TYPE_INVALID); + } + +done: + g_slist_free(device_list); + dbus_message_unref(reply); +} + +static gboolean adapter_added(DBusConnection *connection, DBusMessage *message, + void *user_data) +{ + const char *path; + int ret; + + dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID); + + ret = send_method_call_with_reply(BLUEZ_SERVICE, path, + BLUEZ_ADAPTER_INTERFACE, "GetProperties", + adapter_properties_cb, g_strdup(path), g_free, + -1, DBUS_TYPE_INVALID); + + return TRUE; +} + +static gboolean adapter_removed(DBusConnection *connection, + DBusMessage *message, void *user_data) +{ + const char *path; + + if (dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID) == TRUE) + g_hash_table_remove(adapter_address_hash, path); + + return TRUE; +} + +static void parse_adapters(DBusMessageIter *array, gpointer user_data) +{ + DBusMessageIter value; + + DBG(""); + + if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) + return; + + dbus_message_iter_recurse(array, &value); + + while (dbus_message_iter_get_arg_type(&value) + == DBUS_TYPE_OBJECT_PATH) { + const char *path; + + dbus_message_iter_get_basic(&value, &path); + + DBG("Calling GetProperties on %s", path); + + send_method_call_with_reply(BLUEZ_SERVICE, path, + BLUEZ_ADAPTER_INTERFACE, "GetProperties", + adapter_properties_cb, g_strdup(path), g_free, + -1, DBUS_TYPE_INVALID); + + dbus_message_iter_next(&value); + } +} + +static void manager_properties_cb(DBusPendingCall *call, gpointer user_data) +{ + DBusMessage *reply; + + reply = dbus_pending_call_steal_reply(call); + + if (dbus_message_is_error(reply, DBUS_ERROR_SERVICE_UNKNOWN)) { + DBG("Bluetooth daemon is apparently not available."); + goto done; + } + + DBG(""); + + parse_properties_reply(reply, "Adapters", parse_adapters, NULL, NULL); + +done: + dbus_message_unref(reply); +} + +static void bluetooth_remove_all_modem(gpointer key, gpointer value, gpointer user_data) +{ + struct bluetooth_profile *profile = value; + + profile->remove_all(); +} + +static void bluetooth_disconnect(DBusConnection *connection, void *user_data) +{ + if (!uuid_hash) + return; + + g_hash_table_foreach(uuid_hash, bluetooth_remove_all_modem, NULL); +} + +static guint bluetooth_watch; +static guint adapter_added_watch; +static guint adapter_removed_watch; +static guint property_watch; + +int bluetooth_register_uuid(const char *uuid, struct bluetooth_profile *profile) +{ + int err; + + if (refcnt++ > 0) + goto done; + + connection = ofono_dbus_get_connection(); + + bluetooth_watch = g_dbus_add_service_watch(connection, BLUEZ_SERVICE, + NULL, bluetooth_disconnect, NULL, NULL); + + adapter_added_watch = g_dbus_add_signal_watch(connection, NULL, NULL, + BLUEZ_MANAGER_INTERFACE, + "AdapterAdded", + adapter_added, NULL, NULL); + + adapter_removed_watch = g_dbus_add_signal_watch(connection, NULL, NULL, + BLUEZ_MANAGER_INTERFACE, + "AdapterRemoved", + adapter_removed, NULL, NULL); + + property_watch = g_dbus_add_signal_watch(connection, NULL, NULL, + BLUEZ_DEVICE_INTERFACE, + "PropertyChanged", + property_changed, NULL, NULL); + + if (bluetooth_watch == 0 || adapter_added_watch == 0 || + adapter_removed_watch == 0 || property_watch == 0) { + err = -EIO; + goto remove; + } + + uuid_hash = g_hash_table_new_full(g_str_hash, g_str_equal, + g_free, NULL); + + adapter_address_hash = g_hash_table_new_full(g_str_hash, g_str_equal, + g_free, g_free); + +done: + g_hash_table_insert(uuid_hash, g_strdup(uuid), profile); + + send_method_call_with_reply(BLUEZ_SERVICE, "/", + BLUEZ_MANAGER_INTERFACE, "GetProperties", + manager_properties_cb, NULL, NULL, -1, + DBUS_TYPE_INVALID); + + return 0; + +remove: + g_dbus_remove_watch(connection, bluetooth_watch); + g_dbus_remove_watch(connection, adapter_added_watch); + g_dbus_remove_watch(connection, adapter_removed_watch); + g_dbus_remove_watch(connection, property_watch); + return err; +} + +void bluetooth_unregister_uuid(const char *uuid) +{ + g_hash_table_remove(uuid_hash, uuid); + + if (--refcnt) + return; + + g_dbus_remove_watch(connection, bluetooth_watch); + g_dbus_remove_watch(connection, adapter_added_watch); + g_dbus_remove_watch(connection, adapter_removed_watch); + g_dbus_remove_watch(connection, property_watch); + + g_hash_table_destroy(uuid_hash); + g_hash_table_destroy(adapter_address_hash); +} -- 1.7.0.4