diff options
Diffstat (limited to 'src/dbus-common.c')
-rw-r--r-- | src/dbus-common.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/src/dbus-common.c b/src/dbus-common.c new file mode 100644 index 00000000..02edd683 --- /dev/null +++ b/src/dbus-common.c @@ -0,0 +1,353 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2006-2007 Nokia Corporation + * Copyright (C) 2004-2008 Marcel Holtmann <marcel@holtmann.org> + * Copyright (C) 2005-2007 Johan Hedberg <johan.hedberg@nokia.com> + * + * + * 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 <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/ioctl.h> + +#include <bluetooth/bluetooth.h> +#include <bluetooth/l2cap.h> +#include <bluetooth/sdp.h> +#include <bluetooth/sdp_lib.h> + +#include <glib.h> +#include <dbus/dbus.h> +#include <gdbus.h> + +#include "hcid.h" +#include "manager.h" +#include "adapter.h" +#include "dbus-hci.h" +#include "dbus-database.h" +#include "dbus-common.h" + +#define BLUEZ_NAME "org.bluez" + +#define RECONNECT_RETRY_TIMEOUT 5000 + +static int experimental = 0; + +int l2raw_connect(const char *local, const bdaddr_t *remote) +{ + struct sockaddr_l2 addr; + long arg; + int sk; + + sk = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_L2CAP); + if (sk < 0) { + error("Can't create socket: %s (%d)", strerror(errno), errno); + return sk; + } + + memset(&addr, 0, sizeof(addr)); + addr.l2_family = AF_BLUETOOTH; + str2ba(local, &addr.l2_bdaddr); + + if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + error("Can't bind socket: %s (%d)", strerror(errno), errno); + goto failed; + } + + arg = fcntl(sk, F_GETFL); + if (arg < 0) { + error("Can't get file flags: %s (%d)", strerror(errno), errno); + goto failed; + } + + arg |= O_NONBLOCK; + if (fcntl(sk, F_SETFL, arg) < 0) { + error("Can't set file flags: %s (%d)", strerror(errno), errno); + goto failed; + } + + memset(&addr, 0, sizeof(addr)); + addr.l2_family = AF_BLUETOOTH; + bacpy(&addr.l2_bdaddr, remote); + + if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + if (errno == EAGAIN || errno == EINPROGRESS) + return sk; + error("Can't connect socket: %s (%d)", strerror(errno), errno); + goto failed; + } + + return sk; + +failed: + close(sk); + return -1; +} + +void hcid_dbus_set_experimental(void) +{ + experimental = 1; +} + +int hcid_dbus_use_experimental(void) +{ + return experimental; +} + +static gboolean system_bus_reconnect(void *data) +{ + DBusConnection *conn = get_dbus_connection(); + struct hci_dev_list_req *dl = NULL; + struct hci_dev_req *dr; + int sk, i; + gboolean ret_val = TRUE; + + if (conn) { + if (dbus_connection_get_is_connected(conn)) + return FALSE; + } + + if (hcid_dbus_init() < 0) + return TRUE; + + /* Create and bind HCI socket */ + sk = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); + if (sk < 0) { + error("Can't open HCI socket: %s (%d)", + strerror(errno), errno); + return TRUE; + } + + dl = g_malloc0(HCI_MAX_DEV * sizeof(*dr) + sizeof(*dl)); + + dl->dev_num = HCI_MAX_DEV; + dr = dl->dev_req; + + if (ioctl(sk, HCIGETDEVLIST, (void *) dl) < 0) { + info("Can't get device list: %s (%d)", + strerror(errno), errno); + goto failed; + } + + /* reset the default device */ + manager_set_default_adapter(-1); + + for (i = 0; i < dl->dev_num; i++, dr++) + manager_register_adapter(dr->dev_id); + + ret_val = FALSE; + +failed: + if (sk >= 0) + close(sk); + + g_free(dl); + + return ret_val; +} + +static void disconnect_callback(void *user_data) +{ + set_dbus_connection(NULL); + + g_timeout_add(RECONNECT_RETRY_TIMEOUT, + system_bus_reconnect, NULL); +} + +void hcid_dbus_unregister(void) +{ + DBusConnection *conn = get_dbus_connection(); + char **children; + int i; + uint16_t dev_id; + + if (!conn || !dbus_connection_get_is_connected(conn)) + return; + + /* Unregister all paths in Adapter path hierarchy */ + if (!dbus_connection_list_registered(conn, "/", &children)) + return; + + for (i = 0; children[i]; i++) { + char path[MAX_PATH_LENGTH]; + struct adapter *adapter; + + if (children[i][0] != 'h') + continue; + + snprintf(path, sizeof(path), "/%s", children[i]); + + adapter = manager_find_adapter_by_path(path); + if (!adapter) + continue; + + dev_id = adapter_get_dev_id(adapter); + manager_unregister_adapter(dev_id); + } + + dbus_free_string_array(children); +} + +void hcid_dbus_exit(void) +{ + DBusConnection *conn = get_dbus_connection(); + + if (!conn || !dbus_connection_get_is_connected(conn)) + return; + + manager_cleanup(conn, "/"); + + set_dbus_connection(NULL); + + dbus_connection_unref(conn); +} + +int hcid_dbus_init(void) +{ + DBusConnection *conn; + + conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, BLUEZ_NAME, NULL); + if (!conn) + return -1; + + if (g_dbus_set_disconnect_function(conn, disconnect_callback, + NULL, NULL) == FALSE) { + dbus_connection_unref(conn); + return -1; + } + + if (!manager_init(conn, "/")) + return -1; + + set_dbus_connection(conn); + + return 0; +} + +static void dbus_message_iter_append_variant(DBusMessageIter *iter, + int type, void *val) +{ + DBusMessageIter value; + DBusMessageIter array; + char *sig; + + switch (type) { + case DBUS_TYPE_STRING: + sig = DBUS_TYPE_STRING_AS_STRING; + break; + case DBUS_TYPE_BYTE: + sig = DBUS_TYPE_BYTE_AS_STRING; + break; + case DBUS_TYPE_INT16: + sig = DBUS_TYPE_INT16_AS_STRING; + break; + case DBUS_TYPE_UINT16: + sig = DBUS_TYPE_UINT16_AS_STRING; + break; + case DBUS_TYPE_INT32: + sig = DBUS_TYPE_INT32_AS_STRING; + break; + case DBUS_TYPE_UINT32: + sig = DBUS_TYPE_UINT32_AS_STRING; + break; + case DBUS_TYPE_BOOLEAN: + sig = DBUS_TYPE_BOOLEAN_AS_STRING; + break; + case DBUS_TYPE_ARRAY: + sig = DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING; + break; + case DBUS_TYPE_OBJECT_PATH: + sig = DBUS_TYPE_OBJECT_PATH_AS_STRING; + break; + default: + error("Could not append variant with type %d", type); + return; + } + + dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, sig, &value); + + if (type == DBUS_TYPE_ARRAY) { + int i; + const char ***str_array = val; + + dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY, + DBUS_TYPE_STRING_AS_STRING, &array); + + for (i = 0; (*str_array)[i]; i++) + dbus_message_iter_append_basic(&array, DBUS_TYPE_STRING, + &((*str_array)[i])); + + dbus_message_iter_close_container(&value, &array); + } else + dbus_message_iter_append_basic(&value, type, val); + + dbus_message_iter_close_container(iter, &value); +} + +void dbus_message_iter_append_dict_entry(DBusMessageIter *dict, + const char *key, int type, void *val) +{ + DBusMessageIter entry; + + dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY, + NULL, &entry); + + dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key); + + dbus_message_iter_append_variant(&entry, type, val); + + dbus_message_iter_close_container(dict, &entry); +} + +dbus_bool_t dbus_connection_emit_property_changed(DBusConnection *conn, + const char *path, + const char *interface, + const char *name, + int type, void *value) +{ + DBusMessage *signal; + DBusMessageIter iter; + gboolean ret; + + signal = dbus_message_new_signal(path, interface, "PropertyChanged"); + + if (!signal) { + error("Unable to allocate new %s.PropertyChanged signal", + interface); + return FALSE; + } + + dbus_message_iter_init_append(signal, &iter); + + dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &name); + dbus_message_iter_append_variant(&iter, type, value); + + ret = dbus_connection_send(conn, signal, NULL); + + dbus_message_unref(signal); + return ret; +} |