vendor_libs/test_vendor_lib/model/controller/dual_mode_controller.cc

/*
 * Copyright 2015 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 "dual_mode_controller.h"

#include <memory>

#include <base/files/file_util.h>
#include <base/json/json_reader.h>
#include <base/values.h>

#include "os/log.h"
#include "packet/raw_builder.h"

#include "hci.h"

using std::vector;
using test_vendor_lib::hci::EventCode;
using test_vendor_lib::hci::OpCode;

namespace {

size_t LastNonZero(bluetooth::packet::PacketView<true> view) {
  for (size_t i = view.size() - 1; i > 0; i--) {
    if (view[i] != 0) {
      return i;
    }
  }
  return 0;
}

}  // namespace

namespace test_vendor_lib {
constexpr char DualModeController::kControllerPropertiesFile[];
constexpr uint16_t DualModeController::kSecurityManagerNumKeys;
constexpr uint16_t kNumCommandPackets = 0x01;

// Device methods.
void DualModeController::Initialize(const std::vector<std::string>& args) {
  if (args.size() < 2) return;

  Address addr;
  if (Address::FromString(args[1], addr)) {
    properties_.SetAddress(addr);
  } else {
    LOG_ALWAYS_FATAL("Invalid address: %s", args[1].c_str());
  }
};

std::string DualModeController::GetTypeString() const {
  return "Simulated Bluetooth Controller";
}

void DualModeController::IncomingPacket(
    model::packets::LinkLayerPacketView incoming) {
  link_layer_controller_.IncomingPacket(incoming);
}

void DualModeController::TimerTick() {
  link_layer_controller_.TimerTick();
}

void DualModeController::SendCommandCompleteUnknownOpCodeEvent(uint16_t command_opcode) const {
  std::unique_ptr<bluetooth::packet::RawBuilder> raw_builder_ptr =
      std::make_unique<bluetooth::packet::RawBuilder>();
  raw_builder_ptr->AddOctets1(kNumCommandPackets);
  raw_builder_ptr->AddOctets2(command_opcode);
  raw_builder_ptr->AddOctets1(
      static_cast<uint8_t>(bluetooth::hci::ErrorCode::UNKNOWN_HCI_COMMAND));

  auto packet = bluetooth::hci::EventPacketBuilder::Create(
      bluetooth::hci::EventCode::COMMAND_COMPLETE, std::move(raw_builder_ptr));
  send_event_(std::move(packet));
}

DualModeController::DualModeController(const std::string& properties_filename, uint16_t num_keys)
    : Device(properties_filename), security_manager_(num_keys) {
  loopback_mode_ = hci::LoopbackMode::NO;

  Address public_address;
  ASSERT(Address::FromString("3C:5A:B4:04:05:06", public_address));
  properties_.SetAddress(public_address);

  link_layer_controller_.RegisterRemoteChannel(
      [this](std::shared_ptr<model::packets::LinkLayerPacketBuilder> packet,
             Phy::Type phy_type) {
        DualModeController::SendLinkLayerPacket(packet, phy_type);
      });

#define SET_HANDLER(opcode, method)                     \
  active_hci_commands_[static_cast<uint16_t>(opcode)] = \
      [this](bluetooth::packet::PacketView<true> param) { method(param); };
  SET_HANDLER(OpCode::RESET, HciReset);
  SET_HANDLER(OpCode::READ_BUFFER_SIZE, HciReadBufferSize);
  SET_HANDLER(OpCode::HOST_BUFFER_SIZE, HciHostBufferSize);
  SET_HANDLER(OpCode::SNIFF_SUBRATING, HciSniffSubrating);
  SET_HANDLER(OpCode::READ_ENCRYPTION_KEY_SIZE, HciReadEncryptionKeySize);
  SET_HANDLER(OpCode::READ_LOCAL_VERSION_INFORMATION, HciReadLocalVersionInformation);
  SET_HANDLER(OpCode::READ_BD_ADDR, HciReadBdAddr);
  SET_HANDLER(OpCode::READ_LOCAL_SUPPORTED_COMMANDS, HciReadLocalSupportedCommands);
  SET_HANDLER(OpCode::READ_LOCAL_SUPPORTED_FEATURES, HciReadLocalSupportedFeatures);
  SET_HANDLER(OpCode::READ_LOCAL_SUPPORTED_CODECS, HciReadLocalSupportedCodecs);
  SET_HANDLER(OpCode::READ_LOCAL_EXTENDED_FEATURES, HciReadLocalExtendedFeatures);
  SET_HANDLER(OpCode::READ_REMOTE_EXTENDED_FEATURES, HciReadRemoteExtendedFeatures);
  SET_HANDLER(OpCode::SWITCH_ROLE, HciSwitchRole);
  SET_HANDLER(OpCode::READ_REMOTE_SUPPORTED_FEATURES, HciReadRemoteSupportedFeatures);
  SET_HANDLER(OpCode::READ_CLOCK_OFFSET, HciReadClockOffset);
  SET_HANDLER(OpCode::IO_CAPABILITY_REQUEST_REPLY, HciIoCapabilityRequestReply);
  SET_HANDLER(OpCode::USER_CONFIRMATION_REQUEST_REPLY, HciUserConfirmationRequestReply);
  SET_HANDLER(OpCode::USER_CONFIRMATION_REQUEST_NEGATIVE_REPLY, HciUserConfirmationRequestNegativeReply);
  SET_HANDLER(OpCode::IO_CAPABILITY_REQUEST_NEGATIVE_REPLY, HciIoCapabilityRequestNegativeReply);
  SET_HANDLER(OpCode::WRITE_SIMPLE_PAIRING_MODE, HciWriteSimplePairingMode);
  SET_HANDLER(OpCode::WRITE_LE_HOST_SUPPORT, HciWriteLeHostSupport);
  SET_HANDLER(OpCode::WRITE_SECURE_CONNECTIONS_HOST_SUPPORT,
              HciWriteSecureConnectionsHostSupport);
  SET_HANDLER(OpCode::SET_EVENT_MASK, HciSetEventMask);
  SET_HANDLER(OpCode::WRITE_INQUIRY_MODE, HciWriteInquiryMode);
  SET_HANDLER(OpCode::WRITE_PAGE_SCAN_TYPE, HciWritePageScanType);
  SET_HANDLER(OpCode::WRITE_INQUIRY_SCAN_TYPE, HciWriteInquiryScanType);
  SET_HANDLER(OpCode::AUTHENTICATION_REQUESTED, HciAuthenticationRequested);
  SET_HANDLER(OpCode::SET_CONNECTION_ENCRYPTION, HciSetConnectionEncryption);
  SET_HANDLER(OpCode::CHANGE_CONNECTION_LINK_KEY, HciChangeConnectionLinkKey);
  SET_HANDLER(OpCode::MASTER_LINK_KEY, HciMasterLinkKey);
  SET_HANDLER(OpCode::WRITE_AUTHENTICATION_ENABLE, HciWriteAuthenticationEnable);
  SET_HANDLER(OpCode::READ_AUTHENTICATION_ENABLE, HciReadAuthenticationEnable);
  SET_HANDLER(OpCode::WRITE_CLASS_OF_DEVICE, HciWriteClassOfDevice);
  SET_HANDLER(OpCode::WRITE_PAGE_TIMEOUT, HciWritePageTimeout);
  SET_HANDLER(OpCode::WRITE_LINK_SUPERVISION_TIMEOUT, HciWriteLinkSupervisionTimeout);
  SET_HANDLER(OpCode::HOLD_MODE, HciHoldMode);
  SET_HANDLER(OpCode::SNIFF_MODE, HciSniffMode);
  SET_HANDLER(OpCode::EXIT_SNIFF_MODE, HciExitSniffMode);
  SET_HANDLER(OpCode::QOS_SETUP, HciQosSetup);
  SET_HANDLER(OpCode::WRITE_DEFAULT_LINK_POLICY_SETTINGS, HciWriteDefaultLinkPolicySettings);
  SET_HANDLER(OpCode::FLOW_SPECIFICATION, HciFlowSpecification);
  SET_HANDLER(OpCode::WRITE_LINK_POLICY_SETTINGS, HciWriteLinkPolicySettings);
  SET_HANDLER(OpCode::CHANGE_CONNECTION_PACKET_TYPE, HciChangeConnectionPacketType);
  SET_HANDLER(OpCode::WRITE_LOCAL_NAME, HciWriteLocalName);
  SET_HANDLER(OpCode::READ_LOCAL_NAME, HciReadLocalName);
  SET_HANDLER(OpCode::WRITE_EXTENDED_INQUIRY_RESPONSE, HciWriteExtendedInquiryResponse);
  SET_HANDLER(OpCode::REFRESH_ENCRYPTION_KEY, HciRefreshEncryptionKey);
  SET_HANDLER(OpCode::WRITE_VOICE_SETTING, HciWriteVoiceSetting);
  SET_HANDLER(OpCode::WRITE_CURRENT_IAC_LAP, HciWriteCurrentIacLap);
  SET_HANDLER(OpCode::WRITE_INQUIRY_SCAN_ACTIVITY, HciWriteInquiryScanActivity);
  SET_HANDLER(OpCode::WRITE_SCAN_ENABLE, HciWriteScanEnable);
  SET_HANDLER(OpCode::SET_EVENT_FILTER, HciSetEventFilter);
  SET_HANDLER(OpCode::INQUIRY, HciInquiry);
  SET_HANDLER(OpCode::INQUIRY_CANCEL, HciInquiryCancel);
  SET_HANDLER(OpCode::ACCEPT_CONNECTION_REQUEST, HciAcceptConnectionRequest);
  SET_HANDLER(OpCode::REJECT_CONNECTION_REQUEST, HciRejectConnectionRequest);
  SET_HANDLER(OpCode::LINK_KEY_REQUEST_REPLY, HciLinkKeyRequestReply);
  SET_HANDLER(OpCode::LINK_KEY_REQUEST_NEGATIVE_REPLY, HciLinkKeyRequestNegativeReply);
  SET_HANDLER(OpCode::DELETE_STORED_LINK_KEY, HciDeleteStoredLinkKey);
  SET_HANDLER(OpCode::REMOTE_NAME_REQUEST, HciRemoteNameRequest);
  SET_HANDLER(OpCode::LE_SET_EVENT_MASK, HciLeSetEventMask);
  SET_HANDLER(OpCode::LE_READ_BUFFER_SIZE, HciLeReadBufferSize);
  SET_HANDLER(OpCode::LE_READ_LOCAL_SUPPORTED_FEATURES, HciLeReadLocalSupportedFeatures);
  SET_HANDLER(OpCode::LE_SET_RANDOM_ADDRESS, HciLeSetRandomAddress);
  SET_HANDLER(OpCode::LE_SET_ADVERTISING_PARAMETERS, HciLeSetAdvertisingParameters);
  SET_HANDLER(OpCode::LE_SET_ADVERTISING_DATA, HciLeSetAdvertisingData);
  SET_HANDLER(OpCode::LE_SET_SCAN_RESPONSE_DATA, HciLeSetScanResponseData);
  SET_HANDLER(OpCode::LE_SET_ADVERTISING_ENABLE, HciLeSetAdvertisingEnable);
  SET_HANDLER(OpCode::LE_SET_SCAN_PARAMETERS, HciLeSetScanParameters);
  SET_HANDLER(OpCode::LE_SET_SCAN_ENABLE, HciLeSetScanEnable);
  SET_HANDLER(OpCode::LE_CREATE_CONNECTION, HciLeCreateConnection);
  SET_HANDLER(OpCode::CREATE_CONNECTION, HciCreateConnection);
  SET_HANDLER(OpCode::DISCONNECT, HciDisconnect);
  SET_HANDLER(OpCode::LE_CREATE_CONNECTION_CANCEL, HciLeConnectionCancel);
  SET_HANDLER(OpCode::LE_READ_WHITE_LIST_SIZE, HciLeReadWhiteListSize);
  SET_HANDLER(OpCode::LE_CLEAR_WHITE_LIST, HciLeClearWhiteList);
  SET_HANDLER(OpCode::LE_ADD_DEVICE_TO_WHITE_LIST, HciLeAddDeviceToWhiteList);
  SET_HANDLER(OpCode::LE_REMOVE_DEVICE_FROM_WHITE_LIST, HciLeRemoveDeviceFromWhiteList);
  SET_HANDLER(OpCode::LE_RAND, HciLeRand);
  SET_HANDLER(OpCode::LE_READ_SUPPORTED_STATES, HciLeReadSupportedStates);
  SET_HANDLER(OpCode::LE_GET_VENDOR_CAPABILITIES, HciLeVendorCap);
  SET_HANDLER(OpCode::LE_MULTI_ADVT, HciLeVendorMultiAdv);
  SET_HANDLER(OpCode::LE_ADV_FILTER, HciLeAdvertisingFilter);
  SET_HANDLER(OpCode::LE_ENERGY_INFO, HciLeEnergyInfo);
  SET_HANDLER(OpCode::LE_EXTENDED_SCAN_PARAMS, HciLeExtendedScanParams);
  SET_HANDLER(OpCode::LE_READ_REMOTE_FEATURES, HciLeReadRemoteFeatures);
  SET_HANDLER(OpCode::READ_REMOTE_VERSION_INFORMATION, HciReadRemoteVersionInformation);
  SET_HANDLER(OpCode::LE_CONNECTION_UPDATE, HciLeConnectionUpdate);
  SET_HANDLER(OpCode::LE_START_ENCRYPTION, HciLeStartEncryption);
  SET_HANDLER(OpCode::LE_ADD_DEVICE_TO_RESOLVING_LIST,
              HciLeAddDeviceToResolvingList);
  SET_HANDLER(OpCode::LE_REMOVE_DEVICE_FROM_RESOLVING_LIST,
              HciLeRemoveDeviceFromResolvingList);
  SET_HANDLER(OpCode::LE_CLEAR_RESOLVING_LIST, HciLeClearResolvingList);
  SET_HANDLER(OpCode::LE_SET_PRIVACY_MODE, HciLeSetPrivacyMode);
  // Testing Commands
  SET_HANDLER(OpCode::READ_LOOPBACK_MODE, HciReadLoopbackMode);
  SET_HANDLER(OpCode::WRITE_LOOPBACK_MODE, HciWriteLoopbackMode);
#undef SET_HANDLER
}

void DualModeController::HciSniffSubrating(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 8, "%s size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto packet = bluetooth::hci::SniffSubratingCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, handle);
  send_event_(std::move(packet));
}

void DualModeController::RegisterTaskScheduler(
    std::function<AsyncTaskId(std::chrono::milliseconds, const TaskCallback&)> oneshot_scheduler) {
  link_layer_controller_.RegisterTaskScheduler(oneshot_scheduler);
}

void DualModeController::RegisterPeriodicTaskScheduler(
    std::function<AsyncTaskId(std::chrono::milliseconds, std::chrono::milliseconds, const TaskCallback&)>
        periodic_scheduler) {
  link_layer_controller_.RegisterPeriodicTaskScheduler(periodic_scheduler);
}

void DualModeController::RegisterTaskCancel(std::function<void(AsyncTaskId)> task_cancel) {
  link_layer_controller_.RegisterTaskCancel(task_cancel);
}

void DualModeController::HandleAcl(std::shared_ptr<std::vector<uint8_t>> packet) {
  bluetooth::hci::PacketView<bluetooth::hci::kLittleEndian> raw_packet(packet);
  auto acl_packet = bluetooth::hci::AclPacketView::Create(raw_packet);
  ASSERT(acl_packet.IsValid());
  if (loopback_mode_ == hci::LoopbackMode::LOCAL) {
    uint16_t handle = acl_packet.GetHandle();

    std::vector<bluetooth::hci::CompletedPackets> completed_packets;
    bluetooth::hci::CompletedPackets cp;
    cp.connection_handle_ = handle;
    cp.host_num_of_completed_packets_ = kNumCommandPackets;
    completed_packets.push_back(cp);
    auto packet = bluetooth::hci::NumberOfCompletedPacketsBuilder::Create(
        completed_packets);
    send_event_(std::move(packet));
    return;
  }

  link_layer_controller_.SendAclToRemote(acl_packet);
}

void DualModeController::HandleSco(std::shared_ptr<std::vector<uint8_t>> packet) {
  bluetooth::hci::PacketView<bluetooth::hci::kLittleEndian> raw_packet(packet);
  auto sco_packet = bluetooth::hci::ScoPacketView::Create(raw_packet);
  if (loopback_mode_ == hci::LoopbackMode::LOCAL) {
    uint16_t handle = sco_packet.GetHandle();
    send_sco_(packet);
    std::vector<bluetooth::hci::CompletedPackets> completed_packets;
    bluetooth::hci::CompletedPackets cp;
    cp.connection_handle_ = handle;
    cp.host_num_of_completed_packets_ = kNumCommandPackets;
    completed_packets.push_back(cp);
    auto packet = bluetooth::hci::NumberOfCompletedPacketsBuilder::Create(
        completed_packets);
    send_event_(std::move(packet));
    return;
  }
}

void DualModeController::HandleIso(
    std::shared_ptr<std::vector<uint8_t>> /* packet */) {
  // TODO: implement handling similar to HandleSco
}

void DualModeController::HandleCommand(std::shared_ptr<std::vector<uint8_t>> packet) {
  bluetooth::hci::PacketView<bluetooth::hci::kLittleEndian> raw_packet(packet);
  auto command_packet = bluetooth::hci::CommandPacketView::Create(raw_packet);
  ASSERT(command_packet.IsValid());
  auto op = command_packet.GetOpCode();
  uint16_t opcode = static_cast<uint16_t>(op);

  if (loopback_mode_ == hci::LoopbackMode::LOCAL &&
      // Loopback exceptions.
      op != bluetooth::hci::OpCode::RESET &&
      op != bluetooth::hci::OpCode::SET_CONTROLLER_TO_HOST_FLOW_CONTROL &&
      op != bluetooth::hci::OpCode::HOST_BUFFER_SIZE &&
      op != bluetooth::hci::OpCode::HOST_NUM_COMPLETED_PACKETS &&
      op != bluetooth::hci::OpCode::READ_BUFFER_SIZE &&
      op != bluetooth::hci::OpCode::READ_LOOPBACK_MODE &&
      op != bluetooth::hci::OpCode::WRITE_LOOPBACK_MODE) {
    std::unique_ptr<bluetooth::packet::RawBuilder> raw_builder_ptr =
        std::make_unique<bluetooth::packet::RawBuilder>();
    raw_builder_ptr->AddOctets(*packet);
    auto packet = bluetooth::hci::LoopbackCommandBuilder::Create(
        std::move(raw_builder_ptr));
    send_event_(std::move(packet));
  } else if (active_hci_commands_.count(opcode) > 0) {
    active_hci_commands_[opcode](command_packet.GetPayload());
  } else {
    SendCommandCompleteUnknownOpCodeEvent(opcode);
    LOG_INFO("Unknown command, opcode: 0x%04X, OGF: 0x%04X, OCF: 0x%04X",
             opcode, (opcode & 0xFC00) >> 10, opcode & 0x03FF);
  }
}

void DualModeController::RegisterEventChannel(
    const std::function<void(std::shared_ptr<std::vector<uint8_t>>)>& callback) {
  send_event_ =
      [callback](std::shared_ptr<bluetooth::hci::EventPacketBuilder> event) {
        auto bytes = std::make_shared<std::vector<uint8_t>>();
        bluetooth::packet::BitInserter bit_inserter(*bytes);
        bytes->reserve(event->size());
        event->Serialize(bit_inserter);
        callback(std::move(bytes));
      };
  link_layer_controller_.RegisterEventChannel(send_event_);
}

void DualModeController::RegisterAclChannel(
    const std::function<void(std::shared_ptr<std::vector<uint8_t>>)>& callback) {
  send_acl_ =
      [callback](std::shared_ptr<bluetooth::hci::AclPacketBuilder> acl_data) {
        auto bytes = std::make_shared<std::vector<uint8_t>>();
        bluetooth::packet::BitInserter bit_inserter(*bytes);
        bytes->reserve(acl_data->size());
        acl_data->Serialize(bit_inserter);
        callback(std::move(bytes));
      };
  link_layer_controller_.RegisterAclChannel(send_acl_);
}

void DualModeController::RegisterScoChannel(
    const std::function<void(std::shared_ptr<std::vector<uint8_t>>)>& callback) {
  link_layer_controller_.RegisterScoChannel(callback);
  send_sco_ = callback;
}

void DualModeController::RegisterIsoChannel(
    const std::function<void(std::shared_ptr<std::vector<uint8_t>>)>&
        callback) {
  link_layer_controller_.RegisterIsoChannel(callback);
  send_iso_ = callback;
}

void DualModeController::HciReset(bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.Reset();
  if (loopback_mode_ == hci::LoopbackMode::LOCAL) {
    loopback_mode_ = hci::LoopbackMode::NO;
  }

  send_event_(bluetooth::hci::ResetCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS));
}

void DualModeController::HciReadBufferSize(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());

  auto packet = bluetooth::hci::ReadBufferSizeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      properties_.GetAclDataPacketSize(),
      properties_.GetSynchronousDataPacketSize(),
      properties_.GetTotalNumAclDataPackets(),
      properties_.GetTotalNumSynchronousDataPackets());
  send_event_(std::move(packet));
}

void DualModeController::HciReadEncryptionKeySize(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto packet = bluetooth::hci::ReadEncryptionKeySizeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, handle,
      properties_.GetEncryptionKeySize());
  send_event_(std::move(packet));
}

void DualModeController::HciHostBufferSize(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::HostBufferSizeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciReadLocalVersionInformation(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());

  bluetooth::hci::LocalVersionInformation local_version_information;
  local_version_information.hci_version_ =
      static_cast<bluetooth::hci::HciVersion>(properties_.GetVersion());
  local_version_information.hci_revision_ = properties_.GetRevision();
  local_version_information.lmp_version_ =
      static_cast<bluetooth::hci::LmpVersion>(properties_.GetLmpPalVersion());
  local_version_information.manufacturer_name_ =
      properties_.GetManufacturerName();
  local_version_information.lmp_subversion_ = properties_.GetLmpPalSubversion();
  auto packet =
      bluetooth::hci::ReadLocalVersionInformationCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
          local_version_information);
  send_event_(std::move(packet));
}

void DualModeController::HciReadRemoteVersionInformation(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto status = link_layer_controller_.SendCommandToRemoteByHandle(
      bluetooth::hci::OpCode::READ_REMOTE_VERSION_INFORMATION, args, handle);

  auto packet =
      bluetooth::hci::ReadRemoteVersionInformationStatusBuilder::Create(
          status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciReadBdAddr(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::ReadBdAddrCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      properties_.GetAddress());
  send_event_(std::move(packet));
}

void DualModeController::HciReadLocalSupportedCommands(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());

  std::array<uint8_t, 64> supported_commands;
  supported_commands.fill(0x00);
  size_t len = properties_.GetSupportedCommands().size();
  if (len > 64) {
    len = 64;
  }
  std::copy_n(properties_.GetSupportedCommands().begin(), len,
              supported_commands.begin());

  auto packet =
      bluetooth::hci::ReadLocalSupportedCommandsCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
          supported_commands);
  send_event_(std::move(packet));
}

void DualModeController::HciReadLocalSupportedFeatures(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet =
      bluetooth::hci::ReadLocalSupportedFeaturesCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
          properties_.GetSupportedFeatures());
  send_event_(std::move(packet));
}

void DualModeController::HciReadLocalSupportedCodecs(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::ReadLocalSupportedCodecsCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      properties_.GetSupportedCodecs(), properties_.GetVendorSpecificCodecs());
  send_event_(std::move(packet));
}

void DualModeController::HciReadLocalExtendedFeatures(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  uint8_t page_number = args.begin().extract<uint8_t>();

  auto pakcet =
      bluetooth::hci::ReadLocalExtendedFeaturesCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, page_number,
          properties_.GetExtendedFeaturesMaximumPageNumber(),
          properties_.GetExtendedFeatures(page_number));
  send_event_(std::move(pakcet));
}

void DualModeController::HciReadRemoteExtendedFeatures(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 3, "%s  size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto status = link_layer_controller_.SendCommandToRemoteByHandle(
      bluetooth::hci::OpCode::READ_REMOTE_EXTENDED_FEATURES, args, handle);

  auto packet = bluetooth::hci::ReadRemoteExtendedFeaturesStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciSwitchRole(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());

  Address address = args.begin().extract<Address>();
  uint8_t role = args.begin().extract<uint8_t>();

  auto status = link_layer_controller_.SwitchRole(address, role);

  auto packet = bluetooth::hci::SwitchRoleStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciReadRemoteSupportedFeatures(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto status = link_layer_controller_.SendCommandToRemoteByHandle(
      bluetooth::hci::OpCode::READ_REMOTE_SUPPORTED_FEATURES, args, handle);

  auto packet =
      bluetooth::hci::ReadRemoteSupportedFeaturesStatusBuilder::Create(
          status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciReadClockOffset(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto status = link_layer_controller_.SendCommandToRemoteByHandle(
      bluetooth::hci::OpCode::READ_CLOCK_OFFSET, args, handle);

  auto packet = bluetooth::hci::ReadClockOffsetStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciIoCapabilityRequestReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 9, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  Address peer = args_itr.extract<Address>();
  uint8_t io_capability = args_itr.extract<uint8_t>();
  uint8_t oob_data_present_flag = args_itr.extract<uint8_t>();
  uint8_t authentication_requirements = args_itr.extract<uint8_t>();

  auto status = link_layer_controller_.IoCapabilityRequestReply(
      peer, io_capability, oob_data_present_flag, authentication_requirements);
  auto packet = bluetooth::hci::IoCapabilityRequestReplyCompleteBuilder::Create(
      kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciUserConfirmationRequestReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());

  Address peer = args.begin().extract<Address>();

  auto status = link_layer_controller_.UserConfirmationRequestReply(peer);
  auto packet =
      bluetooth::hci::UserConfirmationRequestReplyCompleteBuilder::Create(
          kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciUserConfirmationRequestNegativeReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());

  Address peer = args.begin().extract<Address>();

  auto status =
      link_layer_controller_.UserConfirmationRequestNegativeReply(peer);
  auto packet =
      bluetooth::hci::UserConfirmationRequestNegativeReplyCompleteBuilder::
          Create(kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciUserPasskeyRequestReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 10, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  Address peer = args_itr.extract<Address>();
  uint32_t numeric_value = args_itr.extract<uint32_t>();

  auto status =
      link_layer_controller_.UserPasskeyRequestReply(peer, numeric_value);
  auto packet = bluetooth::hci::UserPasskeyRequestReplyCompleteBuilder::Create(
      kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciUserPasskeyRequestNegativeReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());

  Address peer = args.begin().extract<Address>();

  auto status = link_layer_controller_.UserPasskeyRequestNegativeReply(peer);
  auto packet =
      bluetooth::hci::UserPasskeyRequestNegativeReplyCompleteBuilder::Create(
          kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciRemoteOobDataRequestReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 38, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  Address peer = args_itr.extract<Address>();
  std::vector<uint8_t> c;
  std::vector<uint8_t> r;
  for (size_t i = 0; i < 16; i++) {
    c.push_back(args_itr.extract<uint8_t>());
  }
  for (size_t i = 0; i < 16; i++) {
    r.push_back(args_itr.extract<uint8_t>());
  }
  auto status = link_layer_controller_.RemoteOobDataRequestReply(peer, c, r);
  auto packet =
      bluetooth::hci::RemoteOobDataRequestReplyCompleteBuilder::Create(
          kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciRemoteOobDataRequestNegativeReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());

  Address peer = args.begin().extract<Address>();

  auto status = link_layer_controller_.RemoteOobDataRequestNegativeReply(peer);
  auto packet =
      bluetooth::hci::RemoteOobDataRequestNegativeReplyCompleteBuilder::Create(
          kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciIoCapabilityRequestNegativeReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  Address peer = args_itr.extract<Address>();
  hci::Status reason = args_itr.extract<hci::Status>();

  auto status =
      link_layer_controller_.IoCapabilityRequestNegativeReply(peer, reason);
  auto packet =
      bluetooth::hci::IoCapabilityRequestNegativeReplyCompleteBuilder::Create(
          kNumCommandPackets, status, peer);

  send_event_(std::move(packet));
}

void DualModeController::HciWriteSimplePairingMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  ASSERT(args[0] == 1 || args[0] == 0);
  link_layer_controller_.WriteSimplePairingMode(args[0] == 1);
  auto packet = bluetooth::hci::WriteSimplePairingModeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciChangeConnectionPacketType(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 4, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint16_t packet_type = args_itr.extract<uint16_t>();

  auto status =
      link_layer_controller_.ChangeConnectionPacketType(handle, packet_type);

  auto packet = bluetooth::hci::ChangeConnectionPacketTypeStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteLeHostSupport(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::WriteLeHostSupportCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteSecureConnectionsHostSupport(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  properties_.SetExtendedFeatures(properties_.GetExtendedFeatures(1) | 0x8, 1);
  auto packet =
      bluetooth::hci::WriteSecureConnectionsHostSupportCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciSetEventMask(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 8, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::SetEventMaskCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteInquiryMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.SetInquiryMode(args[0]);
  auto packet = bluetooth::hci::WriteInquiryModeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWritePageScanType(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::WritePageScanTypeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteInquiryScanType(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::WriteInquiryScanTypeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciAuthenticationRequested(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  uint16_t handle = args.begin().extract<uint16_t>();
  auto status = link_layer_controller_.AuthenticationRequested(handle);

  auto packet = bluetooth::hci::AuthenticationRequestedStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciSetConnectionEncryption(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 3, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint8_t encryption_enable = args_itr.extract<uint8_t>();
  auto status =
      link_layer_controller_.SetConnectionEncryption(handle, encryption_enable);

  auto packet = bluetooth::hci::SetConnectionEncryptionStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciChangeConnectionLinkKey(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();

  auto status = link_layer_controller_.ChangeConnectionLinkKey(handle);

  auto packet = bluetooth::hci::ChangeConnectionLinkKeyStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciMasterLinkKey(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint8_t key_flag = args_itr.extract<uint8_t>();

  auto status = link_layer_controller_.MasterLinkKey(key_flag);

  auto packet = bluetooth::hci::MasterLinkKeyStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteAuthenticationEnable(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  properties_.SetAuthenticationEnable(args[0]);
  auto packet =
      bluetooth::hci::WriteAuthenticationEnableCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciReadAuthenticationEnable(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::ReadAuthenticationEnableCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      static_cast<bluetooth::hci::AuthenticationEnable>(
          properties_.GetAuthenticationEnable()));
  send_event_(std::move(packet));
}

void DualModeController::HciWriteClassOfDevice(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 3, "%s  size=%zu", __func__, args.size());
  properties_.SetClassOfDevice(args[0], args[1], args[2]);
  auto packet = bluetooth::hci::WriteClassOfDeviceCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWritePageTimeout(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::WritePageTimeoutCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciHoldMode(bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint16_t hold_mode_max_interval = args_itr.extract<uint16_t>();
  uint16_t hold_mode_min_interval = args_itr.extract<uint16_t>();

  auto status = link_layer_controller_.HoldMode(handle, hold_mode_max_interval,
                                                hold_mode_min_interval);

  auto packet =
      bluetooth::hci::HoldModeStatusBuilder::Create(status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciSniffMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 10, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint16_t sniff_max_interval = args_itr.extract<uint16_t>();
  uint16_t sniff_min_interval = args_itr.extract<uint16_t>();
  uint16_t sniff_attempt = args_itr.extract<uint16_t>();
  uint16_t sniff_timeout = args_itr.extract<uint16_t>();

  auto status = link_layer_controller_.SniffMode(handle, sniff_max_interval,
                                                 sniff_min_interval,
                                                 sniff_attempt, sniff_timeout);

  auto packet = bluetooth::hci::SniffModeStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciExitSniffMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();

  auto status = link_layer_controller_.ExitSniffMode(handle);

  auto packet = bluetooth::hci::ExitSniffModeStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciQosSetup(bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 20, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  args_itr.extract<uint8_t>();  // unused
  uint8_t service_type = args_itr.extract<uint8_t>();
  uint32_t token_rate = args_itr.extract<uint32_t>();
  uint32_t peak_bandwidth = args_itr.extract<uint32_t>();
  uint32_t latency = args_itr.extract<uint32_t>();
  uint32_t delay_variation = args_itr.extract<uint32_t>();

  auto status =
      link_layer_controller_.QosSetup(handle, service_type, token_rate,
                                      peak_bandwidth, latency, delay_variation);

  auto packet =
      bluetooth::hci::QosSetupStatusBuilder::Create(status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteDefaultLinkPolicySettings(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto packet =
      bluetooth::hci::WriteDefaultLinkPolicySettingsCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciFlowSpecification(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 21, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  args_itr.extract<uint8_t>();  // unused
  uint8_t flow_direction = args_itr.extract<uint8_t>();
  uint8_t service_type = args_itr.extract<uint8_t>();
  uint32_t token_rate = args_itr.extract<uint32_t>();
  uint32_t token_bucket_size = args_itr.extract<uint32_t>();
  uint32_t peak_bandwidth = args_itr.extract<uint32_t>();
  uint32_t access_latency = args_itr.extract<uint32_t>();

  auto status = link_layer_controller_.FlowSpecification(
      handle, flow_direction, service_type, token_rate, token_bucket_size,
      peak_bandwidth, access_latency);

  auto packet = bluetooth::hci::FlowSpecificationStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteLinkPolicySettings(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 4, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint16_t settings = args_itr.extract<uint16_t>();

  auto status =
      link_layer_controller_.WriteLinkPolicySettings(handle, settings);

  auto packet = bluetooth::hci::WriteLinkPolicySettingsCompleteBuilder::Create(
      kNumCommandPackets, status, handle);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteLinkSupervisionTimeout(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 4, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint16_t timeout = args_itr.extract<uint16_t>();

  auto status =
      link_layer_controller_.WriteLinkSupervisionTimeout(handle, timeout);
  auto packet =
      bluetooth::hci::WriteLinkSupervisionTimeoutCompleteBuilder::Create(
          kNumCommandPackets, status, handle);
  send_event_(std::move(packet));
}

void DualModeController::HciReadLocalName(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());

  std::array<uint8_t, 248> local_name;
  local_name.fill(0x00);
  size_t len = properties_.GetName().size();
  if (len > 247) {
    len = 247;  // one byte for NULL octet (0x00)
  }
  std::copy_n(properties_.GetName().begin(), len, local_name.begin());

  auto packet = bluetooth::hci::ReadLocalNameCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, local_name);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteLocalName(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 248, "%s  size=%zu", __func__, args.size());
  std::vector<uint8_t> clipped(args.begin(), args.begin() + LastNonZero(args) + 1);
  properties_.SetName(clipped);
  auto packet = bluetooth::hci::WriteLocalNameCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteExtendedInquiryResponse(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 241, "%s  size=%zu", __func__, args.size());
  // Strip FEC byte and trailing zeros
  std::vector<uint8_t> clipped(args.begin() + 1, args.begin() + LastNonZero(args) + 1);
  properties_.SetExtendedInquiryData(clipped);
  auto packet =
      bluetooth::hci::WriteExtendedInquiryResponseCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciRefreshEncryptionKey(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  auto status_packet =
      bluetooth::hci::RefreshEncryptionKeyStatusBuilder::Create(
          bluetooth::hci::ErrorCode::SUCCESS, kNumCommandPackets);
  send_event_(std::move(status_packet));
  // TODO: Support this in the link layer
  auto complete_packet =
      bluetooth::hci::EncryptionKeyRefreshCompleteBuilder::Create(
          bluetooth::hci::ErrorCode::SUCCESS, handle);
  send_event_(std::move(complete_packet));
}

void DualModeController::HciWriteVoiceSetting(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::WriteVoiceSettingCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteCurrentIacLap(
    bluetooth::packet::PacketView<true> args) {
  ASSERT(args.size() > 0);
  ASSERT(args.size() == 1 + (3 * args[0]));  // count + 3-byte IACs
  auto packet = bluetooth::hci::WriteCurrentIacLapCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteInquiryScanActivity(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 4, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::WriteInquiryScanActivityCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciWriteScanEnable(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.SetInquiryScanEnable(args[0] & 0x1);
  link_layer_controller_.SetPageScanEnable(args[0] & 0x2);
  auto packet = bluetooth::hci::WriteScanEnableCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciSetEventFilter(
    bluetooth::packet::PacketView<true> args) {
  ASSERT(args.size() > 0);
  auto packet = bluetooth::hci::SetEventFilterCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciInquiry(bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 5, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.SetInquiryLAP(args[0] | (args[1], 8) | (args[2], 16));
  link_layer_controller_.SetInquiryMaxResponses(args[4]);
  link_layer_controller_.StartInquiry(std::chrono::milliseconds(args[3] * 1280));

  auto packet = bluetooth::hci::InquiryStatusBuilder::Create(
      bluetooth::hci::ErrorCode::SUCCESS, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciInquiryCancel(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.InquiryCancel();
  auto packet = bluetooth::hci::InquiryCancelCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciAcceptConnectionRequest(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());
  Address addr = args.begin().extract<Address>();
  bool try_role_switch = args[6] == 0;
  auto status =
      link_layer_controller_.AcceptConnectionRequest(addr, try_role_switch);
  auto packet = bluetooth::hci::AcceptConnectionRequestStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciRejectConnectionRequest(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  Address addr = args_itr.extract<Address>();
  uint8_t reason = args_itr.extract<uint8_t>();
  auto status = link_layer_controller_.RejectConnectionRequest(addr, reason);
  auto packet = bluetooth::hci::RejectConnectionRequestStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciLinkKeyRequestReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 22, "%s  size=%zu", __func__, args.size());
  auto args_it = args.begin();
  Address addr = args_it.extract<Address>();
  auto key = args.begin().extract<std::array<uint8_t, 16>>();
  auto status = link_layer_controller_.LinkKeyRequestReply(addr, key);
  auto packet = bluetooth::hci::LinkKeyRequestReplyCompleteBuilder::Create(
      kNumCommandPackets, status);
  send_event_(std::move(packet));
}

void DualModeController::HciLinkKeyRequestNegativeReply(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());
  Address addr = args.begin().extract<Address>();
  auto status = link_layer_controller_.LinkKeyRequestNegativeReply(addr);
  auto packet =
      bluetooth::hci::LinkKeyRequestNegativeReplyCompleteBuilder::Create(
          kNumCommandPackets, status, addr);
  send_event_(std::move(packet));
}

void DualModeController::HciDeleteStoredLinkKey(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());

  uint16_t deleted_keys = 0;

  if (args[6] == 0) {
    Address addr = args.begin().extract<Address>();
    deleted_keys = security_manager_.DeleteKey(addr);
  }

  if (args[6] == 1) {
    security_manager_.DeleteAllKeys();
  }

  auto packet = bluetooth::hci::DeleteStoredLinkKeyCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, deleted_keys);

  send_event_(std::move(packet));
}

void DualModeController::HciRemoteNameRequest(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 10, "%s  size=%zu", __func__, args.size());

  Address remote_addr = args.begin().extract<Address>();

  auto status = link_layer_controller_.SendCommandToRemoteByAddress(
      bluetooth::hci::OpCode::REMOTE_NAME_REQUEST, args, remote_addr);

  auto packet = bluetooth::hci::RemoteNameRequestStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetEventMask(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 8, "%s  size=%zu", __func__, args.size());
  /*
    uint64_t mask = args.begin().extract<uint64_t>();
    link_layer_controller_.SetLeEventMask(mask);
  */
  auto packet = bluetooth::hci::LeSetEventMaskCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeReadBufferSize(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());

  bluetooth::hci::LeBufferSize le_buffer_size;
  le_buffer_size.le_data_packet_length_ = properties_.GetLeDataPacketLength();
  le_buffer_size.total_num_le_packets_ = properties_.GetTotalNumLeDataPackets();

  auto packet = bluetooth::hci::LeReadBufferSizeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, le_buffer_size);
  send_event_(std::move(packet));
}

void DualModeController::HciLeReadLocalSupportedFeatures(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet =
      bluetooth::hci::LeReadLocalSupportedFeaturesCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
          properties_.GetLeSupportedFeatures());
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetRandomAddress(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 6, "%s  size=%zu", __func__, args.size());
  properties_.SetLeAddress(args.begin().extract<Address>());
  auto packet = bluetooth::hci::LeSetRandomAddressCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetAdvertisingParameters(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 15, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  properties_.SetLeAdvertisingParameters(
      args_itr.extract<uint16_t>() /* AdverisingIntervalMin */,
      args_itr.extract<uint16_t>() /* AdverisingIntervalMax */, args_itr.extract<uint8_t>() /* AdverisingType */,
      args_itr.extract<uint8_t>() /* OwnAddressType */, args_itr.extract<uint8_t>() /* PeerAddressType */,
      args_itr.extract<Address>() /* PeerAddress */, args_itr.extract<uint8_t>() /* AdvertisingChannelMap */,
      args_itr.extract<uint8_t>() /* AdvertisingFilterPolicy */
  );

  auto packet =
      bluetooth::hci::LeSetAdvertisingParametersCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetAdvertisingData(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 32, "%s  size=%zu", __func__, args.size());
  properties_.SetLeAdvertisement(std::vector<uint8_t>(args.begin() + 1, args.end()));
  auto packet = bluetooth::hci::LeSetAdvertisingDataCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetScanResponseData(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 32, "%s  size=%zu", __func__, args.size());
  properties_.SetLeScanResponse(std::vector<uint8_t>(args.begin() + 1, args.end()));
  auto packet = bluetooth::hci::LeSetScanResponseDataCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetAdvertisingEnable(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s  size=%zu", __func__, args.size());
  auto status = link_layer_controller_.SetLeAdvertisingEnable(
      args.begin().extract<uint8_t>());
  auto packet = bluetooth::hci::LeSetAdvertisingEnableCompleteBuilder::Create(
      kNumCommandPackets, status);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetScanParameters(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.SetLeScanType(args[0]);
  link_layer_controller_.SetLeScanInterval(args[1] | (args[2], 8));
  link_layer_controller_.SetLeScanWindow(args[3] | (args[4], 8));
  link_layer_controller_.SetLeAddressType(args[5]);
  link_layer_controller_.SetLeScanFilterPolicy(args[6]);
  auto packet = bluetooth::hci::LeSetScanParametersCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetScanEnable(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.SetLeScanEnable(args[0]);
  link_layer_controller_.SetLeFilterDuplicates(args[1]);
  auto packet = bluetooth::hci::LeSetScanEnableCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeCreateConnection(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 25, "%s  size=%zu", __func__, args.size());
  auto args_itr = args.begin();
  link_layer_controller_.SetLeScanInterval(args_itr.extract<uint16_t>());
  link_layer_controller_.SetLeScanWindow(args_itr.extract<uint16_t>());
  uint8_t initiator_filter_policy = args_itr.extract<uint8_t>();
  link_layer_controller_.SetLeInitiatorFilterPolicy(initiator_filter_policy);

  if (initiator_filter_policy == 0) {  // White list not used
    uint8_t peer_address_type = args_itr.extract<uint8_t>();
    Address peer_address = args_itr.extract<Address>();
    link_layer_controller_.SetLePeerAddressType(peer_address_type);
    link_layer_controller_.SetLePeerAddress(peer_address);
  }
  link_layer_controller_.SetLeAddressType(args_itr.extract<uint8_t>());
  link_layer_controller_.SetLeConnectionIntervalMin(args_itr.extract<uint16_t>());
  link_layer_controller_.SetLeConnectionIntervalMax(args_itr.extract<uint16_t>());
  link_layer_controller_.SetLeConnectionLatency(args_itr.extract<uint16_t>());
  link_layer_controller_.SetLeSupervisionTimeout(args_itr.extract<uint16_t>());
  link_layer_controller_.SetLeMinimumCeLength(args_itr.extract<uint16_t>());
  link_layer_controller_.SetLeMaximumCeLength(args_itr.extract<uint16_t>());

  auto status = link_layer_controller_.SetLeConnect(true);

  auto packet = bluetooth::hci::LeCreateConnectionStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciLeConnectionUpdate(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 14, "%s  size=%zu", __func__, args.size());

  auto status_packet = bluetooth::hci::LeConnectionUpdateStatusBuilder::Create(
      bluetooth::hci::ErrorCode::CONNECTION_REJECTED_UNACCEPTABLE_BD_ADDR,
      kNumCommandPackets);
  send_event_(std::move(status_packet));

  auto complete_packet =
      bluetooth::hci::LeConnectionUpdateCompleteBuilder::Create(
          bluetooth::hci::ErrorCode::SUCCESS, 0x0002, 0x0006, 0x0000, 0x01f4);
  send_event_(std::move(complete_packet));
}

void DualModeController::HciCreateConnection(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 13, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  Address address = args_itr.extract<Address>();
  uint16_t packet_type = args_itr.extract<uint16_t>();
  uint8_t page_scan_mode = args_itr.extract<uint8_t>();
  uint16_t clock_offset = args_itr.extract<uint16_t>();
  uint8_t allow_role_switch = args_itr.extract<uint8_t>();

  auto status = link_layer_controller_.CreateConnection(
      address, packet_type, page_scan_mode, clock_offset, allow_role_switch);

  auto packet = bluetooth::hci::CreateConnectionStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciDisconnect(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 3, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  uint8_t reason = args_itr.extract<uint8_t>();

  auto status = link_layer_controller_.Disconnect(handle, reason);

  auto packet = bluetooth::hci::DisconnectStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciLeConnectionCancel(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.SetLeConnect(false);
  auto packet = bluetooth::hci::LeCreateConnectionCancelStatusBuilder::Create(
      bluetooth::hci::ErrorCode::SUCCESS, kNumCommandPackets);
  send_event_(std::move(packet));
  /* For testing Jakub's patch:  Figure out a neat way to call this without
     recompiling.  I'm thinking about a bad device. */
  /*
  SendCommandCompleteOnlyStatus(OpCode::LE_CREATE_CONNECTION_CANCEL,
                                bluetooth::hci::ErrorCode::COMMAND_DISALLOWED);
  */
}

void DualModeController::HciLeReadWhiteListSize(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::LeReadWhiteListSizeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      properties_.GetLeWhiteListSize());
  send_event_(std::move(packet));
}

void DualModeController::HciLeClearWhiteList(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.LeWhiteListClear();
  auto packet = bluetooth::hci::LeClearWhiteListCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeAddDeviceToWhiteList(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());

  if (link_layer_controller_.LeWhiteListFull()) {
    auto packet = bluetooth::hci::LeAddDeviceToWhiteListCompleteBuilder::Create(
        kNumCommandPackets,
        bluetooth::hci::ErrorCode::MEMORY_CAPACITY_EXCEEDED);
    send_event_(std::move(packet));
    return;
  }
  auto args_itr = args.begin();
  uint8_t addr_type = args_itr.extract<uint8_t>();
  Address address = args_itr.extract<Address>();
  link_layer_controller_.LeWhiteListAddDevice(address, addr_type);
  auto packet = bluetooth::hci::LeAddDeviceToWhiteListCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeRemoveDeviceFromWhiteList(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint8_t addr_type = args_itr.extract<uint8_t>();
  Address address = args_itr.extract<Address>();
  link_layer_controller_.LeWhiteListRemoveDevice(address, addr_type);
  auto packet =
      bluetooth::hci::LeRemoveDeviceFromWhiteListCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeClearResolvingList(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  link_layer_controller_.LeResolvingListClear();
  auto packet = bluetooth::hci::LeClearResolvingListCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeAddDeviceToResolvingList(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 39, "%s  size=%zu", __func__, args.size());

  if (link_layer_controller_.LeResolvingListFull()) {
    auto packet =
        bluetooth::hci::LeAddDeviceToResolvingListCompleteBuilder::Create(
            kNumCommandPackets,
            bluetooth::hci::ErrorCode::MEMORY_CAPACITY_EXCEEDED);
    send_event_(std::move(packet));
    return;
  }
  auto args_itr = args.begin();
  uint8_t addr_type = args_itr.extract<uint8_t>();
  Address address = args_itr.extract<Address>();
  std::array<uint8_t, LinkLayerController::kIrk_size> peerIrk;
  std::array<uint8_t, LinkLayerController::kIrk_size> localIrk;
  for (size_t irk_ind = 0; irk_ind < LinkLayerController::kIrk_size;
       irk_ind++) {
    peerIrk[irk_ind] = args_itr.extract<uint8_t>();
  }

  for (size_t irk_ind = 0; irk_ind < LinkLayerController::kIrk_size;
       irk_ind++) {
    localIrk[irk_ind] = args_itr.extract<uint8_t>();
  }

  link_layer_controller_.LeResolvingListAddDevice(address, addr_type, peerIrk,
                                                  localIrk);
  auto packet =
      bluetooth::hci::LeAddDeviceToResolvingListCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeRemoveDeviceFromResolvingList(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 7, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint8_t addr_type = args_itr.extract<uint8_t>();
  Address address = args_itr.extract<Address>();
  link_layer_controller_.LeResolvingListRemoveDevice(address, addr_type);
  auto packet =
      bluetooth::hci::LeRemoveDeviceFromResolvingListCompleteBuilder::Create(
          kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeSetPrivacyMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 8, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint8_t peer_identity_address_type = args_itr.extract<uint8_t>();
  Address peer_identity_address = args_itr.extract<Address>();
  uint8_t privacy_mode = args_itr.extract<uint8_t>();

  if (link_layer_controller_.LeResolvingListContainsDevice(
          peer_identity_address, peer_identity_address_type)) {
    link_layer_controller_.LeSetPrivacyMode(
        peer_identity_address_type, peer_identity_address, privacy_mode);
  }

  auto packet = bluetooth::hci::LeSetPrivacyModeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::HciLeReadRemoteFeatures(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 2, "%s  size=%zu", __func__, args.size());

  uint16_t handle = args.begin().extract<uint16_t>();

  auto status = link_layer_controller_.SendCommandToRemoteByHandle(
      bluetooth::hci::OpCode::LE_READ_REMOTE_FEATURES, args, handle);

  auto packet = bluetooth::hci::LeConnectionUpdateStatusBuilder::Create(
      status, kNumCommandPackets);
  send_event_(std::move(packet));
}

void DualModeController::HciLeRand(bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  uint64_t random_val = 0;
  for (size_t rand_bytes = 0; rand_bytes < sizeof(uint64_t); rand_bytes += sizeof(RAND_MAX)) {
    random_val = (random_val << (8 * sizeof(RAND_MAX))) | random();
  }

  auto packet = bluetooth::hci::LeRandCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS, random_val);
  send_event_(std::move(packet));
}

void DualModeController::HciLeReadSupportedStates(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::LeReadSupportedStatesCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      properties_.GetLeSupportedStates());
  send_event_(std::move(packet));
}

void DualModeController::HciLeVendorCap(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s  size=%zu", __func__, args.size());
  vector<uint8_t> caps = properties_.GetLeVendorCap();
  if (caps.size() == 0) {
    SendCommandCompleteUnknownOpCodeEvent(static_cast<uint16_t>(
        bluetooth::hci::OpCode::LE_GET_VENDOR_CAPABILITIES));
    return;
  }

  std::unique_ptr<bluetooth::packet::RawBuilder> raw_builder_ptr =
      std::make_unique<bluetooth::packet::RawBuilder>();
  raw_builder_ptr->AddOctets1(
      static_cast<uint8_t>(bluetooth::hci::ErrorCode::SUCCESS));
  raw_builder_ptr->AddOctets(properties_.GetLeVendorCap());

  auto packet = bluetooth::hci::CommandCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::OpCode::LE_GET_VENDOR_CAPABILITIES,
      std::move(raw_builder_ptr));
  send_event_(std::move(packet));
}

void DualModeController::HciLeVendorMultiAdv(
    bluetooth::packet::PacketView<true> args) {
  ASSERT(args.size() > 0);
  SendCommandCompleteUnknownOpCodeEvent(
      static_cast<uint16_t>(bluetooth::hci::OpCode::LE_MULTI_ADVT));
}

void DualModeController::HciLeAdvertisingFilter(
    bluetooth::packet::PacketView<true> args) {
  ASSERT(args.size() > 0);
  SendCommandCompleteUnknownOpCodeEvent(
      static_cast<uint16_t>(bluetooth::hci::OpCode::LE_ADV_FILTER));
}

void DualModeController::HciLeEnergyInfo(
    bluetooth::packet::PacketView<true> args) {
  ASSERT(args.size() > 0);
  SendCommandCompleteUnknownOpCodeEvent(
      static_cast<uint16_t>(bluetooth::hci::OpCode::LE_ENERGY_INFO));
}

void DualModeController::HciLeExtendedScanParams(
    bluetooth::packet::PacketView<true> args) {
  ASSERT(args.size() > 0);
  SendCommandCompleteUnknownOpCodeEvent(
      static_cast<uint16_t>(bluetooth::hci::OpCode::LE_EXTENDED_SCAN_PARAMS));
}

void DualModeController::HciLeStartEncryption(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 28, "%s  size=%zu", __func__, args.size());

  auto args_itr = args.begin();
  uint16_t handle = args_itr.extract<uint16_t>();
  // uint64_t random_number = args_itr.extract<uint64_t>();
  // uint16_t encrypted_diversifier = args_itr.extract<uint16_t>();
  // std::vector<uint8_t> long_term_key;
  // for (size_t i = 0; i < 16; i++) {
  //   long_term_key.push_back(args_itr.extract<uint18_t>();
  // }
  auto status_packet = bluetooth::hci::LeStartEncryptionStatusBuilder::Create(
      bluetooth::hci::ErrorCode::SUCCESS, kNumCommandPackets);
  send_event_(std::move(status_packet));

  auto complete_packet = bluetooth::hci::EncryptionChangeBuilder::Create(
      bluetooth::hci::ErrorCode::SUCCESS, handle,
      bluetooth::hci::EncryptionEnabled::OFF);
  send_event_(std::move(complete_packet));
#if 0

  std::shared_ptr<packets::AclPacketBuilder> encryption_information =
      std::make_shared<packets::AclPacketBuilder>(
          0x0002, Acl::FIRST_AUTOMATICALLY_FLUSHABLE, Acl::POINT_TO_POINT,
          std::vector<uint8_t>({}));

  encryption_information->AddPayloadOctets2(0x0011);
  encryption_information->AddPayloadOctets2(0x0006);
  encryption_information->AddPayloadOctets1(0x06);
  encryption_information->AddPayloadOctets8(0x0706050403020100);
  encryption_information->AddPayloadOctets8(0x0F0E0D0C0B0A0908);

  send_acl_(encryption_information);

  encryption_information = std::make_shared<packets::AclPacketBuilder>(
      0x0002, Acl::FIRST_AUTOMATICALLY_FLUSHABLE, Acl::POINT_TO_POINT,
      std::vector<uint8_t>({}));

  encryption_information->AddPayloadOctets2(0x000B);
  encryption_information->AddPayloadOctets2(0x0006);
  encryption_information->AddPayloadOctets1(0x07);
  encryption_information->AddPayloadOctets2(0xBEEF);
  encryption_information->AddPayloadOctets8(0x0706050403020100);

  send_acl_(encryption_information);

  encryption_information = std::make_shared<packets::AclPacketBuilder>(
      0x0002, Acl::FIRST_AUTOMATICALLY_FLUSHABLE, Acl::POINT_TO_POINT,
      std::vector<uint8_t>({}));

  encryption_information->AddPayloadOctets2(0x0011);
  encryption_information->AddPayloadOctets2(0x0006);
  encryption_information->AddPayloadOctets1(0x08);
  encryption_information->AddPayloadOctets8(0x0F0E0D0C0B0A0908);
  encryption_information->AddPayloadOctets8(0x0706050403020100);

  send_acl_(encryption_information);

  encryption_information = std::make_shared<packets::AclPacketBuilder>(
      0x0002, Acl::FIRST_AUTOMATICALLY_FLUSHABLE, Acl::POINT_TO_POINT,
      std::vector<uint8_t>({}));

  encryption_information->AddPayloadOctets2(0x0008);
  encryption_information->AddPayloadOctets2(0x0006);
  encryption_information->AddPayloadOctets1(0x09);
  encryption_information->AddPayloadOctets1(0x01);
  encryption_information->AddPayloadOctets6(0xDEADBEEFF00D);
  send_acl_(encryption_information);
  // send_event_(packets::EventPacketBuilder::CreateLeStartEncryption()->ToVector());

#endif
}

void DualModeController::HciReadLoopbackMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 0, "%s size=%zu", __func__, args.size());
  auto packet = bluetooth::hci::ReadLoopbackModeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS,
      static_cast<bluetooth::hci::LoopbackMode>(loopback_mode_));
  send_event_(std::move(packet));
}

void DualModeController::HciWriteLoopbackMode(
    bluetooth::packet::PacketView<true> args) {
  ASSERT_LOG(args.size() == 1, "%s size=%zu", __func__, args.size());
  loopback_mode_ = static_cast<hci::LoopbackMode>(args[0]);
  // ACL channel
  uint16_t acl_handle = 0x123;
  auto packet_acl = bluetooth::hci::ConnectionCompleteBuilder::Create(
      bluetooth::hci::ErrorCode::SUCCESS, acl_handle, properties_.GetAddress(),
      bluetooth::hci::LinkType::ACL, bluetooth::hci::Enable::DISABLED);
  send_event_(std::move(packet_acl));
  // SCO channel
  uint16_t sco_handle = 0x345;
  auto packet_sco = bluetooth::hci::ConnectionCompleteBuilder::Create(
      bluetooth::hci::ErrorCode::SUCCESS, sco_handle, properties_.GetAddress(),
      bluetooth::hci::LinkType::SCO, bluetooth::hci::Enable::DISABLED);
  send_event_(std::move(packet_sco));
  auto packet = bluetooth::hci::WriteLoopbackModeCompleteBuilder::Create(
      kNumCommandPackets, bluetooth::hci::ErrorCode::SUCCESS);
  send_event_(std::move(packet));
}

void DualModeController::SetAddress(Address address) {
  properties_.SetAddress(address);
}

}  // namespace test_vendor_lib