173 lines
4.3 KiB
C
173 lines
4.3 KiB
C
/*
|
|
*
|
|
* BlueZ - Bluetooth protocol stack for Linux
|
|
*
|
|
* Copyright (C) 2012 Texas Instruments, Inc.
|
|
* Copyright (C) 2015 Google Inc.
|
|
*
|
|
* 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 <stdbool.h>
|
|
#include <errno.h>
|
|
|
|
#include <glib.h>
|
|
|
|
#include "lib/bluetooth.h"
|
|
#include "lib/sdp.h"
|
|
#include "lib/uuid.h"
|
|
|
|
#include "src/plugin.h"
|
|
#include "src/adapter.h"
|
|
#include "src/device.h"
|
|
#include "src/profile.h"
|
|
#include "src/service.h"
|
|
#include "attrib/gattrib.h"
|
|
#include "src/shared/util.h"
|
|
#include "src/shared/queue.h"
|
|
#include "src/shared/gatt-db.h"
|
|
#include "src/shared/gatt-client.h"
|
|
#include "attrib/att.h"
|
|
#include "src/log.h"
|
|
|
|
#define PNP_ID_SIZE 7
|
|
|
|
static void read_pnpid_cb(bool success, uint8_t att_ecode, const uint8_t *value,
|
|
uint16_t length, void *user_data)
|
|
{
|
|
struct btd_device *device = user_data;
|
|
|
|
if (!success) {
|
|
error("Error reading PNP_ID value: %s",
|
|
att_ecode2str(att_ecode));
|
|
return;
|
|
}
|
|
|
|
if (length < PNP_ID_SIZE) {
|
|
error("Error reading PNP_ID: Invalid pdu length received");
|
|
return;
|
|
}
|
|
|
|
btd_device_set_pnpid(device, value[0], get_le16(&value[1]),
|
|
get_le16(&value[3]), get_le16(&value[5]));
|
|
}
|
|
|
|
static void handle_pnpid(struct btd_device *device, uint16_t value_handle)
|
|
{
|
|
struct bt_gatt_client *client = btd_device_get_gatt_client(device);
|
|
|
|
if (!bt_gatt_client_read_value(client, value_handle,
|
|
read_pnpid_cb, device, NULL))
|
|
DBG("Failed to send request to read pnpid");
|
|
}
|
|
|
|
static void handle_characteristic(struct gatt_db_attribute *attr,
|
|
void *user_data)
|
|
{
|
|
struct btd_device *device = user_data;
|
|
uint16_t value_handle;
|
|
bt_uuid_t uuid, pnpid_uuid;
|
|
|
|
bt_string_to_uuid(&pnpid_uuid, PNPID_UUID);
|
|
|
|
if (!gatt_db_attribute_get_char_data(attr, NULL, &value_handle, NULL,
|
|
NULL, &uuid)) {
|
|
error("Failed to obtain characteristic data");
|
|
return;
|
|
}
|
|
|
|
if (bt_uuid_cmp(&pnpid_uuid, &uuid) == 0)
|
|
handle_pnpid(device, value_handle);
|
|
else {
|
|
char uuid_str[MAX_LEN_UUID_STR];
|
|
|
|
bt_uuid_to_string(&uuid, uuid_str, sizeof(uuid_str));
|
|
DBG("Unsupported characteristic: %s", uuid_str);
|
|
}
|
|
}
|
|
|
|
static void foreach_deviceinfo_service(struct gatt_db_attribute *attr,
|
|
void *user_data)
|
|
{
|
|
struct btd_device *device = user_data;
|
|
|
|
gatt_db_service_foreach_char(attr, handle_characteristic, device);
|
|
}
|
|
|
|
static int deviceinfo_probe(struct btd_service *service)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void deviceinfo_remove(struct btd_service *service)
|
|
{
|
|
}
|
|
|
|
|
|
static int deviceinfo_accept(struct btd_service *service)
|
|
{
|
|
struct btd_device *device = btd_service_get_device(service);
|
|
struct gatt_db *db = btd_device_get_gatt_db(device);
|
|
char addr[18];
|
|
bt_uuid_t deviceinfo_uuid;
|
|
|
|
ba2str(device_get_address(device), addr);
|
|
DBG("deviceinfo profile accept (%s)", addr);
|
|
|
|
/* Handle the device info service */
|
|
bt_string_to_uuid(&deviceinfo_uuid, DEVICE_INFORMATION_UUID);
|
|
gatt_db_foreach_service(db, &deviceinfo_uuid,
|
|
foreach_deviceinfo_service, device);
|
|
|
|
btd_service_connecting_complete(service, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int deviceinfo_disconnect(struct btd_service *service)
|
|
{
|
|
btd_service_disconnecting_complete(service, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct btd_profile deviceinfo_profile = {
|
|
.name = "deviceinfo",
|
|
.remote_uuid = DEVICE_INFORMATION_UUID,
|
|
.external = true,
|
|
.device_probe = deviceinfo_probe,
|
|
.device_remove = deviceinfo_remove,
|
|
.accept = deviceinfo_accept,
|
|
.disconnect = deviceinfo_disconnect,
|
|
};
|
|
|
|
static int deviceinfo_init(void)
|
|
{
|
|
return btd_profile_register(&deviceinfo_profile);
|
|
}
|
|
|
|
static void deviceinfo_exit(void)
|
|
{
|
|
btd_profile_unregister(&deviceinfo_profile);
|
|
}
|
|
|
|
BLUETOOTH_PLUGIN_DEFINE(deviceinfo, VERSION, BLUETOOTH_PLUGIN_PRIORITY_DEFAULT,
|
|
deviceinfo_init, deviceinfo_exit)
|