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122 lines
4.1 KiB
122 lines
4.1 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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#include "storage/device.h"
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#include <algorithm>
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#include <limits>
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#include "os/log.h"
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#include "storage/classic_device.h"
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#include "storage/config_cache_helper.h"
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#include "storage/le_device.h"
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namespace bluetooth {
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namespace storage {
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using hci::DeviceType;
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namespace {
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// TODO(siyuanh): also defined in storage/le_device.cc
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const std::string kLeIdentityAddressKey = "LeIdentityAddr";
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const std::string kLeLegacyPseudoAddr = "LeLegacyPseudoAddr";
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std::string GetConfigSection(
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ConfigCache* config, const hci::Address& key_address, Device::ConfigKeyAddressType key_address_type) {
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ASSERT_LOG(config != nullptr, "config cannot be null");
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ASSERT_LOG(!key_address.IsEmpty(), "key_address cannot be empty");
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// assume lower case
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auto key_address_string = key_address.ToString();
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switch (key_address_type) {
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case Device::ConfigKeyAddressType::LEGACY_KEY_ADDRESS:
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case Device::ConfigKeyAddressType::CLASSIC_ADDRESS:
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return key_address_string;
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case Device::ConfigKeyAddressType::LE_IDENTITY_ADDRESS:
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for (const auto& section_and_property : config->GetSectionNamesWithProperty(kLeIdentityAddressKey)) {
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if (section_and_property.property == key_address_string) {
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return section_and_property.section;
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}
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}
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return key_address_string;
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case Device::ConfigKeyAddressType::LE_LEGACY_PSEUDO_ADDRESS:
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for (const auto& section_and_property : config->GetSectionNamesWithProperty(kLeLegacyPseudoAddr)) {
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if (section_and_property.property == key_address_string) {
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return section_and_property.section;
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}
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}
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// One cannot create a new device just using LE legacy pseudo address
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[[fallthrough]];
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default:
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LOG_ALWAYS_FATAL("Unknown key_address_type %d", static_cast<int>(key_address_type));
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return "";
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}
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}
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} // namespace
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const std::unordered_set<std::string_view> Device::kLinkKeyProperties = {
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"LinkKey", "LE_KEY_PENC", "LE_KEY_PID", "LE_KEY_PCSRK", "LE_KEY_LENC", "LE_KEY_LCSRK"};
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Device::Device(
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ConfigCache* config,
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ConfigCache* memory_only_config,
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const hci::Address& key_address,
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ConfigKeyAddressType key_address_type)
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: Device(config, memory_only_config, GetConfigSection(config, key_address, key_address_type)) {}
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Device::Device(ConfigCache* config, ConfigCache* memory_only_config, std::string section)
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: config_(config), memory_only_config_(memory_only_config), section_(std::move(section)) {}
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bool Device::Exists() {
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return config_->HasSection(section_);
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}
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MutationEntry Device::RemoveFromConfig() {
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return MutationEntry::Remove(MutationEntry::PropertyType::NORMAL, section_);
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}
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MutationEntry Device::RemoveFromTempConfig() {
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return MutationEntry::Remove(MutationEntry::PropertyType::MEMORY_ONLY, section_);
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}
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LeDevice Device::Le() {
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auto device_type = GetDeviceType();
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ASSERT(device_type);
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ASSERT(device_type == DeviceType::LE || device_type == DeviceType::DUAL);
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return LeDevice(config_, memory_only_config_, section_);
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}
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ClassicDevice Device::Classic() {
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auto device_type = GetDeviceType();
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ASSERT(device_type);
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ASSERT(device_type == DeviceType::BR_EDR || device_type == DeviceType::DUAL);
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return ClassicDevice(config_, memory_only_config_, section_);
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}
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hci::Address Device::GetAddress() const {
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// section name of a device is its address
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auto addr = hci::Address::FromString(section_);
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ASSERT(addr.has_value());
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return addr.value();
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}
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std::string Device::ToLogString() const {
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return section_;
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}
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} // namespace storage
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} // namespace bluetooth
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