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// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2012 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2012 Nordic Semiconductor Inc.
* Copyright (C) 2012 Instituto Nokia de Tecnologia - INdT
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdbool.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <glib.h>
#include "lib/bluetooth.h"
#include "lib/sdp.h"
#include "lib/uuid.h"
#include "src/log.h"
#include "src/adapter.h"
#include "src/device.h"
#include "src/profile.h"
#include "src/service.h"
#include "src/shared/util.h"
#include "src/shared/uhid.h"
#include "src/shared/queue.h"
#include "src/shared/att.h"
#include "src/shared/gatt-client.h"
#include "src/plugin.h"
#include "device.h"
#include "suspend.h"
#include "attrib/att.h"
#include "attrib/gattrib.h"
#include "attrib/gatt.h"
#include "hog-lib.h"
struct hog_device {
struct btd_device *device;
struct bt_hog *hog;
};
static gboolean suspend_supported = FALSE;
static bool auto_sec = true;
static struct queue *devices = NULL;
void input_set_auto_sec(bool state)
{
auto_sec = state;
}
static void hog_device_accept(struct hog_device *dev, struct gatt_db *db)
{
char name[248];
uint16_t vendor, product, version;
if (dev->hog)
return;
if (device_name_known(dev->device))
device_get_name(dev->device, name, sizeof(name));
else
strcpy(name, "bluez-hog-device");
vendor = btd_device_get_vendor(dev->device);
product = btd_device_get_product(dev->device);
version = btd_device_get_version(dev->device);
DBG("name=%s vendor=0x%X, product=0x%X, version=0x%X", name, vendor,
product, version);
dev->hog = bt_hog_new_default(name, vendor, product, version, db);
}
static struct hog_device *hog_device_new(struct btd_device *device)
{
struct hog_device *dev;
dev = new0(struct hog_device, 1);
dev->device = btd_device_ref(device);
if (!devices)
devices = queue_new();
queue_push_tail(devices, dev);
return dev;
}
static void hog_device_free(void *data)
{
struct hog_device *dev = data;
queue_remove(devices, dev);
if (queue_isempty(devices)) {
queue_destroy(devices, NULL);
devices = NULL;
}
btd_device_unref(dev->device);
bt_hog_unref(dev->hog);
free(dev);
}
static void set_suspend(gpointer data, gpointer user_data)
{
struct hog_device *dev = data;
gboolean suspend = GPOINTER_TO_INT(user_data);
bt_hog_set_control_point(dev->hog, suspend);
}
static void suspend_callback(void)
{
gboolean suspend = TRUE;
DBG("Suspending ...");
queue_foreach(devices, set_suspend, GINT_TO_POINTER(suspend));
}
static void resume_callback(void)
{
gboolean suspend = FALSE;
DBG("Resuming ...");
queue_foreach(devices, set_suspend, GINT_TO_POINTER(suspend));
}
static int hog_probe(struct btd_service *service)
{
struct btd_device *device = btd_service_get_device(service);
const char *path = device_get_path(device);
struct hog_device *dev;
DBG("path %s", path);
dev = hog_device_new(device);
if (!dev)
return -EINVAL;
btd_service_set_user_data(service, dev);
device_set_wake_support(device, true);
return 0;
}
static void hog_remove(struct btd_service *service)
{
struct hog_device *dev = btd_service_get_user_data(service);
struct btd_device *device = btd_service_get_device(service);
const char *path = device_get_path(device);
DBG("path %s", path);
hog_device_free(dev);
}
static int hog_accept(struct btd_service *service)
{
struct hog_device *dev = btd_service_get_user_data(service);
struct btd_device *device = btd_service_get_device(service);
struct gatt_db *db = btd_device_get_gatt_db(device);
GAttrib *attrib = btd_device_get_attrib(device);
if (!dev->hog) {
hog_device_accept(dev, db);
if (!dev->hog)
return -EINVAL;
}
/* HOGP 1.0 Section 6.1 requires bonding */
if (!device_is_bonded(device, btd_device_get_bdaddr_type(device))) {
struct bt_gatt_client *client;
if (!auto_sec)
return -ECONNREFUSED;
client = btd_device_get_gatt_client(device);
if (!bt_gatt_client_set_security(client,
BT_ATT_SECURITY_MEDIUM))
return -ECONNREFUSED;
}
/* TODO: Replace GAttrib with bt_gatt_client */
bt_hog_attach(dev->hog, attrib);
btd_service_connecting_complete(service, 0);
return 0;
}
static int hog_disconnect(struct btd_service *service)
{
struct hog_device *dev = btd_service_get_user_data(service);
bt_hog_detach(dev->hog);
btd_service_disconnecting_complete(service, 0);
return 0;
}
static struct btd_profile hog_profile = {
.name = "input-hog",
.remote_uuid = HOG_UUID,
.device_probe = hog_probe,
.device_remove = hog_remove,
.accept = hog_accept,
.disconnect = hog_disconnect,
.auto_connect = true,
};
static int hog_init(void)
{
int err;
err = suspend_init(suspend_callback, resume_callback);
if (err < 0)
error("Loading suspend plugin failed: %s (%d)", strerror(-err),
-err);
else
suspend_supported = TRUE;
return btd_profile_register(&hog_profile);
}
static void hog_exit(void)
{
if (suspend_supported)
suspend_exit();
btd_profile_unregister(&hog_profile);
}
BLUETOOTH_PLUGIN_DEFINE(hog, VERSION, BLUETOOTH_PLUGIN_PRIORITY_DEFAULT,
hog_init, hog_exit)
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