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/******************************************************************************
*
* 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.
*
******************************************************************************/
#pragma once
#include "hci/address_with_type.h"
namespace bluetooth {
namespace security {
class ConfirmationData {
public:
ConfirmationData() : address_with_type_(hci::AddressWithType()), name_("No name set") {}
ConfirmationData(bluetooth::hci::AddressWithType address_with_type, std::string name)
: address_with_type_(address_with_type), name_(name) {}
ConfirmationData(bluetooth::hci::AddressWithType address_with_type, std::string name, uint32_t numeric_value)
: address_with_type_(address_with_type), name_(name), numeric_value_(numeric_value) {}
const bluetooth::hci::AddressWithType& GetAddressWithType() {
return address_with_type_;
}
std::string GetName() {
return name_;
}
uint32_t GetNumericValue() {
return numeric_value_;
}
hci::IoCapability GetRemoteIoCaps() const {
return remote_io_caps_;
}
void SetRemoteIoCaps(hci::IoCapability remote_io_caps) {
remote_io_caps_ = remote_io_caps;
}
hci::AuthenticationRequirements GetRemoteAuthReqs() const {
return remote_auth_reqs_;
}
void SetRemoteAuthReqs(hci::AuthenticationRequirements remote_auth_reqs) {
remote_auth_reqs_ = remote_auth_reqs;
}
hci::OobDataPresent GetRemoteOobDataPresent() const {
return remote_oob_data_present_;
}
void SetRemoteOobDataPresent(hci::OobDataPresent remote_oob_data_present) {
remote_oob_data_present_ = remote_oob_data_present;
}
bool IsJustWorks() const {
return just_works_;
}
void SetJustWorks(bool just_works) {
just_works_ = just_works;
}
private:
bluetooth::hci::AddressWithType address_with_type_;
std::string name_;
// Can either be the confirmation value or the passkey
uint32_t numeric_value_ = 0;
// TODO(optedoblivion): Revisit after shim/BTA layer is gone
// Extra data is a hack to get data from the module to the shim
hci::IoCapability remote_io_caps_ = hci::IoCapability::DISPLAY_YES_NO;
hci::AuthenticationRequirements remote_auth_reqs_ = hci::AuthenticationRequirements::DEDICATED_BONDING;
hci::OobDataPresent remote_oob_data_present_ = hci::OobDataPresent::NOT_PRESENT;
bool just_works_ = false;
};
// Through this interface we talk to the user, asking for confirmations/acceptance.
class UI {
public:
virtual ~UI() = default;
/* Remote LE device tries to initiate pairing, ask user to confirm */
virtual void DisplayPairingPrompt(const bluetooth::hci::AddressWithType& address, std::string name) = 0;
/* Remove the pairing prompt from DisplayPairingPrompt, i.e. remote device disconnected, or some application requested
* bond with this device */
virtual void Cancel(const bluetooth::hci::AddressWithType& address) = 0;
/* Display value for Comparison, user responds yes/no */
virtual void DisplayConfirmValue(ConfirmationData data) = 0;
/* Display Yes/No dialog, Classic pairing, numeric comparison with NoInputNoOutput device */
virtual void DisplayYesNoDialog(ConfirmationData data) = 0;
/* Display a dialog box that will let user enter the Passkey */
virtual void DisplayEnterPasskeyDialog(ConfirmationData data) = 0;
/* Present the passkey value to the user, user compares with other device */
virtual void DisplayPasskey(ConfirmationData data) = 0;
/* Ask the user to enter a PIN */
virtual void DisplayEnterPinDialog(ConfirmationData data) = 0;
};
/* Through this interface, UI provides us with user choices. */
class UICallbacks {
public:
virtual ~UICallbacks() = default;
/* User accepted pairing prompt */
virtual void OnPairingPromptAccepted(const bluetooth::hci::AddressWithType& address, bool confirmed) = 0;
/* User confirmed that displayed value matches the value on the other device */
virtual void OnConfirmYesNo(const bluetooth::hci::AddressWithType& address, bool confirmed) = 0;
/* User typed the value displayed on the other device. This is either Passkey or the Confirm value */
virtual void OnPasskeyEntry(const bluetooth::hci::AddressWithType& address, uint32_t passkey) = 0;
/* User typed the PIN for the other device. */
virtual void OnPinEntry(const bluetooth::hci::AddressWithType& address, std::vector<uint8_t> pin) = 0;
};
} // namespace security
} // namespace bluetooth