esp-idf/components/bt/bluedroid/device/interop.c

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/******************************************************************************
*
* Copyright (C) 2015 Google, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/*
#define LOG_TAG "bt_device_interop"
*/
#include <string.h> // For memcmp
#include "common/bt_trace.h"
#include "device/bdaddr.h"
#include "device/interop.h"
#include "device/interop_database.h"
#define CASE_RETURN_STR(const) case const: return #const;
#if (SMP_INCLUDED == TRUE)
static const char *interop_feature_string(const interop_feature_t feature)
{
switch (feature) {
CASE_RETURN_STR(INTEROP_DISABLE_LE_SECURE_CONNECTIONS)
CASE_RETURN_STR(INTEROP_AUTO_RETRY_PAIRING)
}
return "UNKNOWN";
}
// Interface functions
bool interop_match(const interop_feature_t feature, const bt_bdaddr_t *addr)
{
assert(addr);
const size_t db_size = sizeof(interop_database) / sizeof(interop_entry_t);
for (size_t i = 0; i != db_size; ++i) {
if (feature == interop_database[i].feature &&
memcmp(addr, &interop_database[i].addr, interop_database[i].len) == 0) {
char bdstr[20] = {0};
LOG_WARN("%s() Device %s is a match for interop workaround %s", __func__,
bdaddr_to_string(addr, bdstr, sizeof(bdstr)), interop_feature_string(feature));
return true;
}
}
return false;
}
#endif ///SMP_INCLUDED == TRUE