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/*
*
* Copyright (c) 2020 Project CHIP Authors
* Copyright (c) 2014-2017 Nest Labs, 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.
*/
#include <ble/BleConfig.h>
#if CONFIG_NETWORK_LAYER_BLE
#include <cctype>
#include <cstdint>
#include <cstring>
#include "BleUUID.h"
namespace chip {
namespace Ble {
const ChipBleUUID CHIP_BLE_SVC_ID = { { // 0000FFF6-0000-1000-8000-00805F9B34FB
0x00, 0x00, 0xFF, 0xF6, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34,
0xFB } };
inline static uint8_t HexDigitToInt(const char c)
{
return static_cast<uint8_t>(c >= '0' && c <= '9' ? c - '0' : tolower(c) - 'a' + 10);
}
bool UUIDsMatch(const ChipBleUUID * idOne, const ChipBleUUID * idTwo)
{
if ((idOne == nullptr) || (idTwo == nullptr))
{
return false;
}
return (memcmp(idOne->bytes, idTwo->bytes, 16) == 0);
}
// Convert a string like "0000FFF6-0000-1000-8000-00805F9B34FB" to binary UUID
bool StringToUUID(const char * str, ChipBleUUID & uuid)
{
constexpr size_t NUM_UUID_NIBBLES = sizeof(uuid.bytes) * 2;
size_t nibbleId = 0;
for (; *str; ++str)
{
if (*str == '-') // skip separators
continue;
if (!isxdigit(*str)) // invalid character!
return false;
if (nibbleId >= NUM_UUID_NIBBLES) // too long string!
return false;
uint8_t & byte = uuid.bytes[nibbleId / 2];
if (nibbleId % 2 == 0)
byte = static_cast<uint8_t>(HexDigitToInt(*str) << 4);
else
byte = static_cast<uint8_t>(byte | HexDigitToInt(*str));
++nibbleId;
}
// All bytes were initialized?
return nibbleId == NUM_UUID_NIBBLES;
}
} /* namespace Ble */
} /* namespace chip */
#endif /* CONFIG_NETWORK_LAYER_BLE */