mirror of
https://github.com/kidfromjupiter/nearby.git
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73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_FASTPAIR_COMMON_CONSTANT_H_
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#define THIRD_PARTY_NEARBY_FASTPAIR_COMMON_CONSTANT_H_
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#include <stdint.h>
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namespace nearby {
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namespace fastpair {
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// Bluetooth Uuid
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constexpr char kServiceId[] = "Fast Pair";
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constexpr char kRfcommUuid[] = "df21fe2c-2515-4fdb-8886-f12c4d67927c";
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constexpr int kAccountKeySize = 16;
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// Key pair
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constexpr int kSharedSecretKeyByteSize = 16;
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constexpr int kPublicKeyByteSize = 64;
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// Encryption
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constexpr int kAesBlockByteSize = 16;
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constexpr int kEncryptedDataByteSize = 16;
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// Decryption
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constexpr int kDecryptedResponseAddressByteSize = 6;
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constexpr int kDecryptedResponseSaltByteSize = 9;
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constexpr int kDecryptedPasskeySaltByteSize = 12;
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// Handshake response index
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constexpr int kMessageTypeIndex = 0;
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constexpr int kResponseAddressStartIndex = 1;
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constexpr int kResponseSaltStartIndex = 7;
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constexpr int kPasskeySaltStartIndex = 4;
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// Handshake response message type
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constexpr uint8_t kKeybasedPairingResponseType = 0x01;
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constexpr uint8_t kSeekerPasskeyType = 0x02;
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constexpr uint8_t kProviderPasskeyType = 0x03;
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// Handshake request inex
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constexpr uint8_t kProviderAddressStartIndex = 2;
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constexpr uint8_t kSeekerAddressStartIndex = 8;
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constexpr uint8_t kSeekerPasskey = 0x02;
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constexpr uint8_t kAccountKeyStartByte = 0x04;
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// Handshake request message type
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constexpr uint8_t kKeyBasedPairingType = 0x00;
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constexpr uint8_t kInitialOrSubsequentFlags = 0x00;
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constexpr uint8_t kRetroactiveFlags = 0x10;
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// Battery Info
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constexpr int kBatteryChargingMask = 0b10000000;
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constexpr int kBatteryPercentageMask = 0b01111111;
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constexpr int kBatteryIsChargingByte = 0b11111111;
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constexpr int kBatteryNotChargingByte = 0b01111111;
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} // namespace fastpair
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_FASTPAIR_COMMON_CONSTANT_H_
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