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u2f_device.cc
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u2f_device.cc
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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "u2f_device.h"
#include "base/bind.h"
#include "u2f_apdu_command.h"
#include "u2f_apdu_response.h"
namespace device {
U2fDevice::U2fDevice() : channel_id_(kBroadcastChannel), capabilities_(0) {}
U2fDevice::~U2fDevice() {}
void U2fDevice::Register(const std::vector<uint8_t>& app_param,
const std::vector<uint8_t>& challenge_param,
const MessageCallback& callback) {
std::unique_ptr<U2fApduCommand> register_cmd =
U2fApduCommand::CreateRegister(app_param, challenge_param);
if (!register_cmd) {
callback.Run(U2fReturnCode::INVALID_PARAMS, std::vector<uint8_t>());
return;
}
DeviceTransact(
std::move(register_cmd),
base::Bind(&U2fDevice::OnRegisterComplete, GetWeakPtr(), callback));
}
void U2fDevice::Sign(const std::vector<uint8_t>& app_param,
const std::vector<uint8_t>& challenge_param,
const std::vector<uint8_t>& key_handle,
const MessageCallback& callback) {
std::unique_ptr<U2fApduCommand> sign_cmd =
U2fApduCommand::CreateSign(app_param, challenge_param, key_handle);
if (!sign_cmd) {
callback.Run(U2fReturnCode::INVALID_PARAMS, std::vector<uint8_t>());
return;
}
DeviceTransact(std::move(sign_cmd), base::Bind(&U2fDevice::OnSignComplete,
GetWeakPtr(), callback));
}
void U2fDevice::Version(const VersionCallback& callback) {
std::unique_ptr<U2fApduCommand> version_cmd = U2fApduCommand::CreateVersion();
if (!version_cmd) {
callback.Run(false, ProtocolVersion::UNKNOWN);
return;
}
DeviceTransact(
std::move(version_cmd),
base::Bind(&U2fDevice::OnVersionComplete, GetWeakPtr(), callback));
}
void U2fDevice::OnRegisterComplete(
const MessageCallback& callback,
bool success,
std::unique_ptr<U2fApduResponse> register_response) {
if (!success || !register_response) {
callback.Run(U2fReturnCode::FAILURE, std::vector<uint8_t>());
return;
}
switch (register_response->status()) {
case U2fApduResponse::Status::SW_CONDITIONS_NOT_SATISFIED:
callback.Run(U2fReturnCode::CONDITIONS_NOT_SATISFIED,
std::vector<uint8_t>());
break;
case U2fApduResponse::Status::SW_NO_ERROR:
callback.Run(U2fReturnCode::SUCCESS, register_response->data());
break;
case U2fApduResponse::Status::SW_WRONG_DATA:
callback.Run(U2fReturnCode::INVALID_PARAMS, std::vector<uint8_t>());
break;
default:
callback.Run(U2fReturnCode::FAILURE, std::vector<uint8_t>());
break;
}
}
void U2fDevice::OnSignComplete(const MessageCallback& callback,
bool success,
std::unique_ptr<U2fApduResponse> sign_response) {
if (!success || !sign_response) {
callback.Run(U2fReturnCode::FAILURE, std::vector<uint8_t>());
return;
}
switch (sign_response->status()) {
case U2fApduResponse::Status::SW_CONDITIONS_NOT_SATISFIED:
callback.Run(U2fReturnCode::CONDITIONS_NOT_SATISFIED,
std::vector<uint8_t>());
break;
case U2fApduResponse::Status::SW_NO_ERROR:
callback.Run(U2fReturnCode::SUCCESS, sign_response->data());
break;
case U2fApduResponse::Status::SW_WRONG_DATA:
case U2fApduResponse::Status::SW_WRONG_LENGTH:
default:
callback.Run(U2fReturnCode::INVALID_PARAMS, std::vector<uint8_t>());
break;
}
}
void U2fDevice::OnVersionComplete(
const VersionCallback& callback,
bool success,
std::unique_ptr<U2fApduResponse> version_response) {
if (success && version_response &&
version_response->status() == U2fApduResponse::Status::SW_NO_ERROR &&
version_response->data() ==
std::vector<uint8_t>({'U', '2', 'F', '_', 'V', '2'})) {
callback.Run(success, ProtocolVersion::U2F_V2);
return;
}
callback.Run(success, ProtocolVersion::UNKNOWN);
}
void U2fDevice::OnLegacyVersionComplete(
const VersionCallback& callback,
bool success,
std::unique_ptr<U2fApduResponse> legacy_version_response) {
if (success && legacy_version_response &&
legacy_version_response->status() ==
U2fApduResponse::Status::SW_NO_ERROR &&
legacy_version_response->data() ==
std::vector<uint8_t>({'U', '2', 'F', '_', 'V', '2'})) {
callback.Run(success, ProtocolVersion::U2F_V2);
return;
}
callback.Run(success, ProtocolVersion::UNKNOWN);
}
} // namespace device