gd/security/pairing/classic_pairing_handler.cc - platform/system/bt - Git at Google

 /*
  *
  *  Copyright 2019 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 "security/pairing/classic_pairing_handler.h"

 namespace bluetooth {
 namespace security {
 namespace pairing {

 void ClassicPairingHandler::OnRegistrationComplete(
     l2cap::classic::FixedChannelManager::RegistrationResult result,
     std::unique_ptr<l2cap::classic::FixedChannelService> fixed_channel_service) {
   fixed_channel_service_ = std::move(fixed_channel_service);
   fixed_channel_manager_->ConnectServices(
       GetRecord()->GetDevice().GetAddress(),
       common::Bind(&ClassicPairingHandler::OnConnectionFail, common::Unretained(this)), security_handler_);
 }

 void ClassicPairingHandler::OnUnregistered() {
   std::move(complete_callback_).Run(GetRecord()->GetDevice().GetAddress());
 }

 void ClassicPairingHandler::OnConnectionOpen(std::unique_ptr<l2cap::classic::FixedChannel> fixed_channel) {
   ASSERT(fixed_channel_ == nullptr);
   fixed_channel_ = std::move(fixed_channel);
   fixed_channel_->Acquire();
   fixed_channel_->RegisterOnCloseCallback(
       security_handler_, common::BindOnce(&ClassicPairingHandler::OnConnectionClose, common::Unretained(this)));
 }

 void ClassicPairingHandler::OnConnectionFail(l2cap::classic::FixedChannelManager::ConnectionResult result) {
   Cancel();
 }
 void ClassicPairingHandler::OnConnectionClose(hci::ErrorCode error_code) {
   // Called when the connection gets closed
   LOG_ERROR("Connection closed due to: %s", hci::ErrorCodeText(error_code).c_str());
   ASSERT(fixed_channel_ != nullptr);
   Cancel();
 }

 void ClassicPairingHandler::Initiate(bool locally_initiated, hci::IoCapability io_capability,
                                      hci::OobDataPresent oob_present,
                                      hci::AuthenticationRequirements auth_requirements) {
   locally_initiated_ = locally_initiated;
   local_io_capability_ = io_capability;
   local_oob_present_ = oob_present;
   local_authentication_requirements_ = auth_requirements;

   // TODO(optedoblivion): Read OOB data
   // if host and controller support secure connections used HCIREADLOCALOOBEXTENDEDDATA vs HCIREADLOCALOOBDATA

   fixed_channel_manager_->RegisterService(
       l2cap::kClassicPairingTriggerCid, security_policy_,
       common::Bind(&ClassicPairingHandler::OnRegistrationComplete, common::Unretained(this)),
       common::Bind(&ClassicPairingHandler::OnConnectionOpen, common::Unretained(this)), security_handler_);
 }

 void ClassicPairingHandler::Cancel() {
   if (fixed_channel_ != nullptr) {
     fixed_channel_->Release();
   }
   if (fixed_channel_service_ != nullptr) {
     fixed_channel_service_->Unregister(common::Bind(&ClassicPairingHandler::OnUnregistered, common::Unretained(this)),
                                        security_handler_);
   }
 }

 void ClassicPairingHandler::OnReceive(hci::ChangeConnectionLinkKeyCompleteView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received unsupported event: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
 }

 void ClassicPairingHandler::OnReceive(hci::MasterLinkKeyCompleteView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received unsupported event: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
 }

 void ClassicPairingHandler::OnReceive(hci::PinCodeRequestView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
 }

 void ClassicPairingHandler::OnReceive(hci::LinkKeyRequestView packet) {
   ASSERT(packet.IsValid());
   // TODO(optedoblivion): Add collision detection here
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
   if (GetRecord()->IsBonded() || GetRecord()->IsPaired()) {
     auto packet =
         hci::LinkKeyRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress(), GetRecord()->GetLinkKey());
     this->GetChannel()->SendCommand(std::move(packet));
   } else {
     auto packet = hci::LinkKeyRequestNegativeReplyBuilder::Create(GetRecord()->GetDevice().GetAddress());
     this->GetChannel()->SendCommand(std::move(packet));
   }
 }

 void ClassicPairingHandler::OnReceive(hci::LinkKeyNotificationView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
   GetRecord()->SetLinkKey(packet.GetLinkKey(), packet.GetKeyType());
 }

 void ClassicPairingHandler::OnReceive(hci::IoCapabilityRequestView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
   hci::IoCapability io_capability = local_io_capability_;
   hci::OobDataPresent oob_present = hci::OobDataPresent::NOT_PRESENT;
   hci::AuthenticationRequirements authentication_requirements = local_authentication_requirements_;
   auto reply_packet = hci::IoCapabilityRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress(), io_capability,
                                                                    oob_present, authentication_requirements);
   this->GetChannel()->SendCommand(std::move(reply_packet));
 }

 void ClassicPairingHandler::OnReceive(hci::IoCapabilityResponseView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");

   // Using local variable until device database pointer is ready
   remote_io_capability_ = packet.GetIoCapability();
   // TODO(optedoblivion): device->SetIoCapability(packet.GetIoCapability);
 }

 void ClassicPairingHandler::OnReceive(hci::SimplePairingCompleteView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
   Cancel();
 }

 void ClassicPairingHandler::OnReceive(hci::ReturnLinkKeysView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
 }

 void ClassicPairingHandler::OnReceive(hci::EncryptionChangeView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
 }

 void ClassicPairingHandler::OnReceive(hci::EncryptionKeyRefreshCompleteView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
 }

 void ClassicPairingHandler::OnReceive(hci::RemoteOobDataRequestView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
 }

 void ClassicPairingHandler::OnReceive(hci::UserPasskeyNotificationView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
 }

 void ClassicPairingHandler::OnReceive(hci::KeypressNotificationView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   LOG_INFO("Notification Type: %s", hci::KeypressNotificationTypeText(packet.GetNotificationType()).c_str());
   switch (packet.GetNotificationType()) {
     case hci::KeypressNotificationType::ENTRY_STARTED:
       // Get ready to keep track of key input
       break;
     case hci::KeypressNotificationType::DIGIT_ENTERED:
       // Append digit to key
       break;
     case hci::KeypressNotificationType::DIGIT_ERASED:
       // erase last digit from key
       break;
     case hci::KeypressNotificationType::CLEARED:
       // erase all digits from key
       break;
     case hci::KeypressNotificationType::ENTRY_COMPLETED:
       // set full key to security record
       break;
   }
 }

 /**
  * Here we decide what type of pairing authentication method we will use
  *
  * The table is on pg 2133 of the Core v5.1 spec.
  */
 void ClassicPairingHandler::OnReceive(hci::UserConfirmationRequestView packet) {
   ASSERT(packet.IsValid());
   LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
   // if locally_initialized, use default, otherwise us remote io caps
   hci::IoCapability initiator_io_capability = (locally_initiated_) ? local_io_capability_ : remote_io_capability_;
   hci::IoCapability responder_io_capability = (!locally_initiated_) ? local_io_capability_ : remote_io_capability_;
   // TODO(optedoblivion): Check for TEMPORARY pairing case
   switch (initiator_io_capability) {
     case hci::IoCapability::DISPLAY_ONLY:
       switch (responder_io_capability) {
         case hci::IoCapability::DISPLAY_ONLY:
           // NumericComparison, Both auto confirm
           LOG_INFO("Numeric Comparison: A and B auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
         case hci::IoCapability::DISPLAY_YES_NO:
           // NumericComparison, Initiator auto confirm, Responder display
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           LOG_INFO("Numeric Comparison: A auto confirm");
           // Unauthenticated
           break;
         case hci::IoCapability::KEYBOARD_ONLY:
           // PassKey Entry, Initiator display, Responder input
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Authenticated
           break;
         case hci::IoCapability::NO_INPUT_NO_OUTPUT:
           // NumericComparison, Both auto confirm
           LOG_INFO("Numeric Comparison: A and B auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
       }
       break;
     case hci::IoCapability::DISPLAY_YES_NO:
       switch (responder_io_capability) {
         case hci::IoCapability::DISPLAY_ONLY:
           // NumericComparison, Initiator display, Responder auto confirm
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Unauthenticated
           break;
         case hci::IoCapability::DISPLAY_YES_NO:
           // NumericComparison Both Display, Both confirm
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Authenticated
           break;
         case hci::IoCapability::KEYBOARD_ONLY:
           // PassKey Entry, Initiator display, Responder input
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Authenticated
           break;
         case hci::IoCapability::NO_INPUT_NO_OUTPUT:
           // NumericComparison, auto confirm Responder, Yes/No confirm Initiator. Don't show confirmation value
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Unauthenticated
           break;
       }
       break;
     case hci::IoCapability::KEYBOARD_ONLY:
       switch (responder_io_capability) {
         case hci::IoCapability::DISPLAY_ONLY:
           // PassKey Entry, Responder display, Initiator input
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Authenticated
           break;
         case hci::IoCapability::DISPLAY_YES_NO:
           // PassKey Entry, Responder display, Initiator input
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Authenticated
           break;
         case hci::IoCapability::KEYBOARD_ONLY:
           // PassKey Entry, both input
           // TODO(optedoblivion): Notify UI
           LOG_INFO("Notify UI");
           // Authenticated
           break;
         case hci::IoCapability::NO_INPUT_NO_OUTPUT:
           // NumericComparison, both auto confirm
           LOG_INFO("Numeric Comparison: A and B auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
       }
       break;
     case hci::IoCapability::NO_INPUT_NO_OUTPUT:
       switch (responder_io_capability) {
         case hci::IoCapability::DISPLAY_ONLY:
           // NumericComparison, both auto confirm
           LOG_INFO("Numeric Comparison: A and B auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
         case hci::IoCapability::DISPLAY_YES_NO:
           // NumericComparison, Initiator auto confirm, Responder Yes/No confirm, no show conf val
           LOG_INFO("Numeric Comparison: A auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
         case hci::IoCapability::KEYBOARD_ONLY:
           // NumericComparison, both auto confirm
           LOG_INFO("Numeric Comparison: A and B auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
         case hci::IoCapability::NO_INPUT_NO_OUTPUT:
           // NumericComparison, both auto confirm
           LOG_INFO("Numeric Comparison: A and B auto confirm");
           GetChannel()->SendCommand(
               hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
           // Unauthenticated
           break;
       }
       break;
   }
 }

 void ClassicPairingHandler::OnReceive(hci::UserPasskeyRequestView packet) {
   ASSERT(packet.IsValid());
   ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
 }

 }  // namespace pairing
 }  // namespace security
 }  // namespace bluetooth
	/*
	*
	* Copyright 2019 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 "security/pairing/classic_pairing_handler.h"

	namespace bluetooth {
	namespace security {
	namespace pairing {

	void ClassicPairingHandler::OnRegistrationComplete(
	l2cap::classic::FixedChannelManager::RegistrationResult result,
	std::unique_ptr<l2cap::classic::FixedChannelService> fixed_channel_service) {
	fixed_channel_service_ = std::move(fixed_channel_service);
	fixed_channel_manager_->ConnectServices(
	GetRecord()->GetDevice().GetAddress(),
	common::Bind(&ClassicPairingHandler::OnConnectionFail, common::Unretained(this)), security_handler_);
	}

	void ClassicPairingHandler::OnUnregistered() {
	std::move(complete_callback_).Run(GetRecord()->GetDevice().GetAddress());
	}

	void ClassicPairingHandler::OnConnectionOpen(std::unique_ptr<l2cap::classic::FixedChannel> fixed_channel) {
	ASSERT(fixed_channel_ == nullptr);
	fixed_channel_ = std::move(fixed_channel);
	fixed_channel_->Acquire();
	fixed_channel_->RegisterOnCloseCallback(
	security_handler_, common::BindOnce(&ClassicPairingHandler::OnConnectionClose, common::Unretained(this)));
	}

	void ClassicPairingHandler::OnConnectionFail(l2cap::classic::FixedChannelManager::ConnectionResult result) {
	Cancel();
	}
	void ClassicPairingHandler::OnConnectionClose(hci::ErrorCode error_code) {
	// Called when the connection gets closed
	LOG_ERROR("Connection closed due to: %s", hci::ErrorCodeText(error_code).c_str());
	ASSERT(fixed_channel_ != nullptr);
	Cancel();
	}

	void ClassicPairingHandler::Initiate(bool locally_initiated, hci::IoCapability io_capability,
	hci::OobDataPresent oob_present,
	hci::AuthenticationRequirements auth_requirements) {
	locally_initiated_ = locally_initiated;
	local_io_capability_ = io_capability;
	local_oob_present_ = oob_present;
	local_authentication_requirements_ = auth_requirements;

	// TODO(optedoblivion): Read OOB data
	// if host and controller support secure connections used HCIREADLOCALOOBEXTENDEDDATA vs HCIREADLOCALOOBDATA

	fixed_channel_manager_->RegisterService(
	l2cap::kClassicPairingTriggerCid, security_policy_,
	common::Bind(&ClassicPairingHandler::OnRegistrationComplete, common::Unretained(this)),
	common::Bind(&ClassicPairingHandler::OnConnectionOpen, common::Unretained(this)), security_handler_);
	}

	void ClassicPairingHandler::Cancel() {
	if (fixed_channel_ != nullptr) {
	fixed_channel_->Release();
	}
	if (fixed_channel_service_ != nullptr) {
	fixed_channel_service_->Unregister(common::Bind(&ClassicPairingHandler::OnUnregistered, common::Unretained(this)),
	security_handler_);
	}
	}

	void ClassicPairingHandler::OnReceive(hci::ChangeConnectionLinkKeyCompleteView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received unsupported event: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	}

	void ClassicPairingHandler::OnReceive(hci::MasterLinkKeyCompleteView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received unsupported event: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	}

	void ClassicPairingHandler::OnReceive(hci::PinCodeRequestView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	}

	void ClassicPairingHandler::OnReceive(hci::LinkKeyRequestView packet) {
	ASSERT(packet.IsValid());
	// TODO(optedoblivion): Add collision detection here
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	if (GetRecord()->IsBonded() \|\| GetRecord()->IsPaired()) {
	auto packet =
	hci::LinkKeyRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress(), GetRecord()->GetLinkKey());
	this->GetChannel()->SendCommand(std::move(packet));
	} else {
	auto packet = hci::LinkKeyRequestNegativeReplyBuilder::Create(GetRecord()->GetDevice().GetAddress());
	this->GetChannel()->SendCommand(std::move(packet));
	}
	}

	void ClassicPairingHandler::OnReceive(hci::LinkKeyNotificationView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	GetRecord()->SetLinkKey(packet.GetLinkKey(), packet.GetKeyType());
	}

	void ClassicPairingHandler::OnReceive(hci::IoCapabilityRequestView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	hci::IoCapability io_capability = local_io_capability_;
	hci::OobDataPresent oob_present = hci::OobDataPresent::NOT_PRESENT;
	hci::AuthenticationRequirements authentication_requirements = local_authentication_requirements_;
	auto reply_packet = hci::IoCapabilityRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress(), io_capability,
	oob_present, authentication_requirements);
	this->GetChannel()->SendCommand(std::move(reply_packet));
	}

	void ClassicPairingHandler::OnReceive(hci::IoCapabilityResponseView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");

	// Using local variable until device database pointer is ready
	remote_io_capability_ = packet.GetIoCapability();
	// TODO(optedoblivion): device->SetIoCapability(packet.GetIoCapability);
	}

	void ClassicPairingHandler::OnReceive(hci::SimplePairingCompleteView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	Cancel();
	}

	void ClassicPairingHandler::OnReceive(hci::ReturnLinkKeysView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	}

	void ClassicPairingHandler::OnReceive(hci::EncryptionChangeView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	}

	void ClassicPairingHandler::OnReceive(hci::EncryptionKeyRefreshCompleteView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	}

	void ClassicPairingHandler::OnReceive(hci::RemoteOobDataRequestView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	}

	void ClassicPairingHandler::OnReceive(hci::UserPasskeyNotificationView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	}

	void ClassicPairingHandler::OnReceive(hci::KeypressNotificationView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	LOG_INFO("Notification Type: %s", hci::KeypressNotificationTypeText(packet.GetNotificationType()).c_str());
	switch (packet.GetNotificationType()) {
	case hci::KeypressNotificationType::ENTRY_STARTED:
	// Get ready to keep track of key input
	break;
	case hci::KeypressNotificationType::DIGIT_ENTERED:
	// Append digit to key
	break;
	case hci::KeypressNotificationType::DIGIT_ERASED:
	// erase last digit from key
	break;
	case hci::KeypressNotificationType::CLEARED:
	// erase all digits from key
	break;
	case hci::KeypressNotificationType::ENTRY_COMPLETED:
	// set full key to security record
	break;
	}
	}

	/**
	* Here we decide what type of pairing authentication method we will use
	*
	* The table is on pg 2133 of the Core v5.1 spec.
	*/
	void ClassicPairingHandler::OnReceive(hci::UserConfirmationRequestView packet) {
	ASSERT(packet.IsValid());
	LOG_INFO("Received: %s", hci::EventCodeText(packet.GetEventCode()).c_str());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	// if locally_initialized, use default, otherwise us remote io caps
	hci::IoCapability initiator_io_capability = (locally_initiated_) ? local_io_capability_ : remote_io_capability_;
	hci::IoCapability responder_io_capability = (!locally_initiated_) ? local_io_capability_ : remote_io_capability_;
	// TODO(optedoblivion): Check for TEMPORARY pairing case
	switch (initiator_io_capability) {
	case hci::IoCapability::DISPLAY_ONLY:
	switch (responder_io_capability) {
	case hci::IoCapability::DISPLAY_ONLY:
	// NumericComparison, Both auto confirm
	LOG_INFO("Numeric Comparison: A and B auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	case hci::IoCapability::DISPLAY_YES_NO:
	// NumericComparison, Initiator auto confirm, Responder display
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	LOG_INFO("Numeric Comparison: A auto confirm");
	// Unauthenticated
	break;
	case hci::IoCapability::KEYBOARD_ONLY:
	// PassKey Entry, Initiator display, Responder input
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Authenticated
	break;
	case hci::IoCapability::NO_INPUT_NO_OUTPUT:
	// NumericComparison, Both auto confirm
	LOG_INFO("Numeric Comparison: A and B auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	}
	break;
	case hci::IoCapability::DISPLAY_YES_NO:
	switch (responder_io_capability) {
	case hci::IoCapability::DISPLAY_ONLY:
	// NumericComparison, Initiator display, Responder auto confirm
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Unauthenticated
	break;
	case hci::IoCapability::DISPLAY_YES_NO:
	// NumericComparison Both Display, Both confirm
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Authenticated
	break;
	case hci::IoCapability::KEYBOARD_ONLY:
	// PassKey Entry, Initiator display, Responder input
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Authenticated
	break;
	case hci::IoCapability::NO_INPUT_NO_OUTPUT:
	// NumericComparison, auto confirm Responder, Yes/No confirm Initiator. Don't show confirmation value
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Unauthenticated
	break;
	}
	break;
	case hci::IoCapability::KEYBOARD_ONLY:
	switch (responder_io_capability) {
	case hci::IoCapability::DISPLAY_ONLY:
	// PassKey Entry, Responder display, Initiator input
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Authenticated
	break;
	case hci::IoCapability::DISPLAY_YES_NO:
	// PassKey Entry, Responder display, Initiator input
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Authenticated
	break;
	case hci::IoCapability::KEYBOARD_ONLY:
	// PassKey Entry, both input
	// TODO(optedoblivion): Notify UI
	LOG_INFO("Notify UI");
	// Authenticated
	break;
	case hci::IoCapability::NO_INPUT_NO_OUTPUT:
	// NumericComparison, both auto confirm
	LOG_INFO("Numeric Comparison: A and B auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	}
	break;
	case hci::IoCapability::NO_INPUT_NO_OUTPUT:
	switch (responder_io_capability) {
	case hci::IoCapability::DISPLAY_ONLY:
	// NumericComparison, both auto confirm
	LOG_INFO("Numeric Comparison: A and B auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	case hci::IoCapability::DISPLAY_YES_NO:
	// NumericComparison, Initiator auto confirm, Responder Yes/No confirm, no show conf val
	LOG_INFO("Numeric Comparison: A auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	case hci::IoCapability::KEYBOARD_ONLY:
	// NumericComparison, both auto confirm
	LOG_INFO("Numeric Comparison: A and B auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	case hci::IoCapability::NO_INPUT_NO_OUTPUT:
	// NumericComparison, both auto confirm
	LOG_INFO("Numeric Comparison: A and B auto confirm");
	GetChannel()->SendCommand(
	hci::UserConfirmationRequestReplyBuilder::Create(GetRecord()->GetDevice().GetAddress()));
	// Unauthenticated
	break;
	}
	break;
	}
	}

	void ClassicPairingHandler::OnReceive(hci::UserPasskeyRequestView packet) {
	ASSERT(packet.IsValid());
	ASSERT_LOG(GetRecord()->GetDevice().GetAddress() == packet.GetBdAddr(), "Address mismatch");
	}

	} // namespace pairing
	} // namespace security
	} // namespace bluetooth