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107 lines
3.7 KiB
107 lines
3.7 KiB
/*
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* Copyright 2020 The Android Open Source Project
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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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* http://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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*/
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#pragma once
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#include <optional>
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#include <string>
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#include <unordered_set>
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#include "crypto_toolbox/crypto_toolbox.h"
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#include "hci/hci_packets.h"
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#include "storage/config_cache.h"
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#include "storage/config_cache_helper.h"
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#include "storage/device.h"
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namespace bluetooth {
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namespace storage {
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class LeDevice {
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public:
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LeDevice(ConfigCache* config, ConfigCache* memory_only_config, std::string section);
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// for move
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LeDevice(LeDevice&& other) noexcept = default;
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LeDevice& operator=(LeDevice&& other) noexcept = default;
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// for copy
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LeDevice(const LeDevice& other) noexcept = default;
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LeDevice& operator=(const LeDevice& other) noexcept = default;
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// operators
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bool operator==(const LeDevice& other) const {
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return config_ == other.config_ && memory_only_config_ == other.memory_only_config_ && section_ == other.section_;
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}
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bool operator!=(const LeDevice& other) const {
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return !(*this == other);
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}
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bool operator<(const LeDevice& other) const {
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return config_ < other.config_ && memory_only_config_ < other.memory_only_config_ && section_ < other.section_;
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}
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bool operator>(const LeDevice& rhs) const {
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return (rhs < *this);
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}
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bool operator<=(const LeDevice& rhs) const {
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return !(*this > rhs);
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}
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bool operator>=(const LeDevice& rhs) const {
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return !(*this < rhs);
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}
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// Get the parent device
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Device Parent();
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// For logging purpose only, you can't get a LeDevice object from parsing a std::string
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std::string ToLogString() const;
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// Return true if device has a link key in one of |kLinkKeyProperties|
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bool IsPaired() const;
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// Property names that correspond to a link key used in Bluetooth LE device
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static const std::unordered_set<std::string_view> kLinkKeyProperties;
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private:
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ConfigCache* config_;
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ConfigCache* memory_only_config_;
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std::string section_;
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friend std::hash<LeDevice>;
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public:
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// Get LE address type of the key address
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GENERATE_PROPERTY_GETTER_SETTER_REMOVER(AddressType, hci::AddressType, "AddrType");
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// IRK + Identity Address Type + Identity Address
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GENERATE_PROPERTY_GETTER_SETTER_REMOVER(PeerId, std::string, "LE_KEY_PID");
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// LTK + RAND + EDIV + Security Level + Key Length
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GENERATE_PROPERTY_GETTER_SETTER_REMOVER(PeerEncryptionKeys, std::string, "LE_KEY_PENC");
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// counter + CSRK (connection signature resolving key) + security level
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GENERATE_PROPERTY_GETTER_SETTER_REMOVER(PeerSignatureResolvingKeys, std::string, "LE_KEY_PCSRK");
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GENERATE_PROPERTY_GETTER_SETTER_REMOVER(LegacyPseudoAddress, hci::Address, "LeLegacyPseudoAddr");
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};
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} // namespace storage
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} // namespace bluetooth
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namespace std {
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template <>
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struct hash<bluetooth::storage::LeDevice> {
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std::size_t operator()(const bluetooth::storage::LeDevice& val) const noexcept {
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std::size_t pointer_hash_1 = std::hash<bluetooth::storage::ConfigCache*>{}(val.config_);
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std::size_t pointer_hash_2 = std::hash<bluetooth::storage::ConfigCache*>{}(val.config_);
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std::size_t addr_hash = std::hash<std::string>{}(val.section_);
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return addr_hash ^ (pointer_hash_1 << 1) ^ (pointer_hash_2 << 2);
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}
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};
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} // namespace std
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