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/*
* 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 <arpa/inet.h>
#include <iostream>
#include <gtest/gtest.h>
#include <hardware/hw_auth_token.h>
#include "../SoftGateKeeper.h"
using ::gatekeeper::EnrollRequest;
using ::gatekeeper::EnrollResponse;
using ::gatekeeper::secure_id_t;
using ::gatekeeper::SizedBuffer;
using ::gatekeeper::SoftGateKeeper;
using ::gatekeeper::VerifyRequest;
using ::gatekeeper::VerifyResponse;
using ::testing::Test;
static SizedBuffer makePasswordBuffer(int init = 0) {
constexpr const uint32_t pw_buffer_size = 16;
auto pw_buffer = new uint8_t[pw_buffer_size];
memset(pw_buffer, init, pw_buffer_size);
return {pw_buffer, pw_buffer_size};
}
static SizedBuffer makeAndInitializeSizedBuffer(const uint8_t* data, uint32_t size) {
auto buffer = new uint8_t[size];
memcpy(buffer, data, size);
return {buffer, size};
}
static SizedBuffer copySizedBuffer(const SizedBuffer& rhs) {
return makeAndInitializeSizedBuffer(rhs.Data<uint8_t>(), rhs.size());
}
static void do_enroll(SoftGateKeeper& gatekeeper, EnrollResponse* response) {
EnrollRequest request(0, {}, makePasswordBuffer(), {});
gatekeeper.Enroll(request, response);
}
TEST(GateKeeperTest, EnrollSuccess) {
SoftGateKeeper gatekeeper;
EnrollResponse response;
do_enroll(gatekeeper, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, response.error);
}
TEST(GateKeeperTest, EnrollBogusData) {
SoftGateKeeper gatekeeper;
EnrollResponse response;
EnrollRequest request(0, {}, {}, {});
gatekeeper.Enroll(request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_INVALID, response.error);
}
TEST(GateKeeperTest, VerifySuccess) {
SoftGateKeeper gatekeeper;
EnrollResponse enroll_response;
do_enroll(gatekeeper, &enroll_response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, enroll_response.error);
VerifyRequest request(0, 1, std::move(enroll_response.enrolled_password_handle),
makePasswordBuffer());
VerifyResponse response;
gatekeeper.Verify(request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, response.error);
auto auth_token = response.auth_token.Data<hw_auth_token_t>();
ASSERT_NE(nullptr, auth_token);
ASSERT_EQ((uint32_t)HW_AUTH_PASSWORD, ntohl(auth_token->authenticator_type));
ASSERT_EQ((uint64_t)1, auth_token->challenge);
ASSERT_NE(~((uint32_t)0), auth_token->timestamp);
ASSERT_NE((uint64_t)0, auth_token->user_id);
ASSERT_NE((uint64_t)0, auth_token->authenticator_id);
}
TEST(GateKeeperTest, TrustedReEnroll) {
SoftGateKeeper gatekeeper;
EnrollResponse enroll_response;
// do_enroll enrolls an all 0 password
do_enroll(gatekeeper, &enroll_response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, enroll_response.error);
// verify first password
VerifyRequest request(0, 0, copySizedBuffer(enroll_response.enrolled_password_handle),
makePasswordBuffer());
VerifyResponse response;
gatekeeper.Verify(request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, response.error);
auto auth_token = response.auth_token.Data<hw_auth_token_t>();
ASSERT_NE(nullptr, auth_token);
secure_id_t secure_id = auth_token->user_id;
// enroll new password
EnrollRequest enroll_request(0, std::move(enroll_response.enrolled_password_handle),
makePasswordBuffer(1) /* new password */,
makePasswordBuffer() /* old password */);
gatekeeper.Enroll(enroll_request, &enroll_response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, enroll_response.error);
// verify new password
VerifyRequest new_request(0, 0, std::move(enroll_response.enrolled_password_handle),
makePasswordBuffer(1));
gatekeeper.Verify(new_request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, response.error);
ASSERT_NE(nullptr, response.auth_token.Data<hw_auth_token_t>());
ASSERT_EQ(secure_id, response.auth_token.Data<hw_auth_token_t>()->user_id);
}
TEST(GateKeeperTest, UntrustedReEnroll) {
SoftGateKeeper gatekeeper;
SizedBuffer provided_password;
EnrollResponse enroll_response;
// do_enroll enrolls an all 0 password
provided_password = makePasswordBuffer();
do_enroll(gatekeeper, &enroll_response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, enroll_response.error);
// verify first password
VerifyRequest request(0, 0, std::move(enroll_response.enrolled_password_handle),
std::move(provided_password));
VerifyResponse response;
gatekeeper.Verify(request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, response.error);
auto auth_token = response.auth_token.Data<hw_auth_token_t>();
ASSERT_NE(nullptr, auth_token);
secure_id_t secure_id = auth_token->user_id;
EnrollRequest enroll_request(0, {}, makePasswordBuffer(1), {});
gatekeeper.Enroll(enroll_request, &enroll_response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, enroll_response.error);
// verify new password
VerifyRequest new_request(0, 0, std::move(enroll_response.enrolled_password_handle),
makePasswordBuffer(1));
gatekeeper.Verify(new_request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_NONE, response.error);
ASSERT_NE(nullptr, response.auth_token.Data<hw_auth_token_t>());
ASSERT_NE(secure_id, response.auth_token.Data<hw_auth_token_t>()->user_id);
}
TEST(GateKeeperTest, VerifyBogusData) {
SoftGateKeeper gatekeeper;
VerifyResponse response;
VerifyRequest request(0, 0, {}, {});
gatekeeper.Verify(request, &response);
ASSERT_EQ(::gatekeeper::gatekeeper_error_t::ERROR_INVALID, response.error);
}
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