| /****************************************************************************** |
| * |
| * Copyright 2017 The Android Open Source Project |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| |
| #pragma once |
| |
| #include <array> |
| #include <cstring> |
| #include <string> |
| |
| /** Bluetooth Address */ |
| class RawAddress final { |
| public: |
| static constexpr unsigned int kLength = 6; |
| |
| uint8_t address[kLength]; |
| |
| RawAddress() = default; |
| RawAddress(const uint8_t (&addr)[kLength]); |
| RawAddress(const std::array<uint8_t, kLength> array); |
| |
| bool operator<(const RawAddress& rhs) const { |
| return (std::memcmp(address, rhs.address, sizeof(address)) < 0); |
| } |
| bool operator==(const RawAddress& rhs) const { |
| return (std::memcmp(address, rhs.address, sizeof(address)) == 0); |
| } |
| bool operator>(const RawAddress& rhs) const { return (rhs < *this); } |
| bool operator<=(const RawAddress& rhs) const { return !(*this > rhs); } |
| bool operator>=(const RawAddress& rhs) const { return !(*this < rhs); } |
| bool operator!=(const RawAddress& rhs) const { return !(*this == rhs); } |
| |
| bool IsEmpty() const { return *this == kEmpty; } |
| |
| std::string ToString() const; |
| |
| // Converts |string| to RawAddress and places it in |to|. If |from| does |
| // not represent a Bluetooth address, |to| is not modified and this function |
| // returns false. Otherwise, it returns true. |
| static bool FromString(const std::string& from, RawAddress& to); |
| |
| // Copies |from| raw Bluetooth address octets to the local object. |
| // Returns the number of copied octets - should be always RawAddress::kLength |
| size_t FromOctets(const uint8_t* from); |
| |
| std::array<uint8_t, kLength> ToArray() const; |
| |
| static bool IsValidAddress(const std::string& address); |
| |
| static const RawAddress kEmpty; // 00:00:00:00:00:00 |
| static const RawAddress kAny; // FF:FF:FF:FF:FF:FF |
| }; |
| |
| inline std::ostream& operator<<(std::ostream& os, const RawAddress& a) { |
| os << a.ToString(); |
| return os; |
| } |
| |
| template <> |
| struct std::hash<RawAddress> { |
| std::size_t operator()(const RawAddress& val) const { |
| static_assert(sizeof(uint64_t) >= RawAddress::kLength); |
| uint64_t int_addr = 0; |
| memcpy(reinterpret_cast<uint8_t*>(&int_addr), val.address, |
| RawAddress::kLength); |
| return std::hash<uint64_t>{}(int_addr); |
| } |
| }; |
| |
| #define BD_ADDR_LEN 6 /* Device address length */ |
| |
| inline void BDADDR_TO_STREAM(uint8_t*& p, const RawAddress& a) { |
| for (int ijk = 0; ijk < BD_ADDR_LEN; ijk++) |
| *(p)++ = (uint8_t)(a.address)[BD_ADDR_LEN - 1 - ijk]; |
| } |
| |
| inline void STREAM_TO_BDADDR(RawAddress& a, uint8_t*& p) { |
| uint8_t* pbda = (uint8_t*)(a.address) + BD_ADDR_LEN - 1; |
| for (int ijk = 0; ijk < BD_ADDR_LEN; ijk++) *pbda-- = *(p)++; |
| } |