| /* |
| * Copyright 2020 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. |
| */ |
| |
| #include "storage/device.h" |
| |
| #include <algorithm> |
| #include <limits> |
| |
| #include "os/log.h" |
| #include "storage/classic_device.h" |
| #include "storage/config_cache_helper.h" |
| #include "storage/le_device.h" |
| |
| namespace bluetooth { |
| namespace storage { |
| |
| using hci::DeviceType; |
| |
| namespace { |
| // TODO(siyuanh): also defined in storage/le_device.cc |
| const std::string kLeIdentityAddressKey = "LeIdentityAddr"; |
| const std::string kLeLegacyPseudoAddr = "LeLegacyPseudoAddr"; |
| |
| std::string GetConfigSection( |
| ConfigCache* config, const hci::Address& key_address, Device::ConfigKeyAddressType key_address_type) { |
| ASSERT_LOG(config != nullptr, "config cannot be null"); |
| ASSERT_LOG(!key_address.IsEmpty(), "key_address cannot be empty"); |
| // assume lower case |
| auto key_address_string = key_address.ToString(); |
| switch (key_address_type) { |
| case Device::ConfigKeyAddressType::LEGACY_KEY_ADDRESS: |
| case Device::ConfigKeyAddressType::CLASSIC_ADDRESS: |
| return key_address_string; |
| case Device::ConfigKeyAddressType::LE_IDENTITY_ADDRESS: |
| for (const auto& section_and_property : config->GetSectionNamesWithProperty(kLeIdentityAddressKey)) { |
| if (section_and_property.property == key_address_string) { |
| return section_and_property.section; |
| } |
| } |
| return key_address_string; |
| case Device::ConfigKeyAddressType::LE_LEGACY_PSEUDO_ADDRESS: |
| for (const auto& section_and_property : config->GetSectionNamesWithProperty(kLeLegacyPseudoAddr)) { |
| if (section_and_property.property == key_address_string) { |
| return section_and_property.section; |
| } |
| } |
| // One cannot create a new device just using LE legacy pseudo address |
| [[fallthrough]]; |
| default: |
| LOG_ALWAYS_FATAL("Unknown key_address_type %d", static_cast<int>(key_address_type)); |
| return ""; |
| } |
| } |
| |
| } // namespace |
| |
| const std::unordered_set<std::string_view> Device::kLinkKeyProperties = { |
| "LinkKey", "LE_KEY_PENC", "LE_KEY_PID", "LE_KEY_PCSRK", "LE_KEY_LENC", "LE_KEY_LCSRK"}; |
| |
| Device::Device( |
| ConfigCache* config, |
| ConfigCache* memory_only_config, |
| const hci::Address& key_address, |
| ConfigKeyAddressType key_address_type) |
| : Device(config, memory_only_config, GetConfigSection(config, key_address, key_address_type)) {} |
| |
| Device::Device(ConfigCache* config, ConfigCache* memory_only_config, std::string section) |
| : config_(config), memory_only_config_(memory_only_config), section_(std::move(section)) {} |
| |
| bool Device::Exists() { |
| return config_->HasSection(section_); |
| } |
| |
| MutationEntry Device::RemoveFromConfig() { |
| return MutationEntry::Remove(MutationEntry::PropertyType::NORMAL, section_); |
| } |
| |
| MutationEntry Device::RemoveFromTempConfig() { |
| return MutationEntry::Remove(MutationEntry::PropertyType::MEMORY_ONLY, section_); |
| } |
| |
| LeDevice Device::Le() { |
| auto device_type = GetDeviceType(); |
| ASSERT(device_type); |
| ASSERT(device_type == DeviceType::LE || device_type == DeviceType::DUAL); |
| return LeDevice(config_, memory_only_config_, section_); |
| } |
| |
| ClassicDevice Device::Classic() { |
| auto device_type = GetDeviceType(); |
| ASSERT(device_type); |
| ASSERT(device_type == DeviceType::BR_EDR || device_type == DeviceType::DUAL); |
| return ClassicDevice(config_, memory_only_config_, section_); |
| } |
| |
| hci::Address Device::GetAddress() const { |
| // section name of a device is its address |
| auto addr = hci::Address::FromString(section_); |
| ASSERT(addr.has_value()); |
| return addr.value(); |
| } |
| |
| std::string Device::ToLogString() const { |
| return section_; |
| } |
| |
| } // namespace storage |
| } // namespace bluetooth |