sandboxed-api/sandboxed_api/sandbox2/ipc_test.cc
Wiktor Garbacz e09c2bc215 Run more tests with coverage and sanitizers contd
PiperOrigin-RevId: 513815467
Change-Id: I31d0df2c69b20eb126aaa8dde7f45fa7c0e1e6a8
2023-03-03 06:51:06 -08:00

131 lines
4.4 KiB
C++

// Copyright 2019 Google LLC
//
// 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
//
// https://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 "sandboxed_api/sandbox2/ipc.h"
#include <memory>
#include <utility>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "sandboxed_api/sandbox2/comms.h"
#include "sandboxed_api/sandbox2/executor.h"
#include "sandboxed_api/sandbox2/policy.h"
#include "sandboxed_api/sandbox2/result.h"
#include "sandboxed_api/sandbox2/sandbox2.h"
#include "sandboxed_api/testing.h"
#include "sandboxed_api/util/status_matchers.h"
namespace sandbox2 {
namespace {
using ::sapi::CreateDefaultPermissiveTestPolicy;
using ::sapi::GetTestSourcePath;
constexpr int kPreferredIpcFd = 812;
class IPCTest : public testing::Test,
public testing::WithParamInterface<int> {};
// This test verifies that mapping fds by name works if the sandbox is enabled
// before execve.
TEST_P(IPCTest, MapFDByNamePreExecve) {
const int fd = GetParam();
const std::string path = GetTestSourcePath("sandbox2/testcases/ipc");
std::vector<std::string> args = {path, "1", std::to_string(fd)};
auto executor = std::make_unique<Executor>(path, args);
Comms comms(executor->ipc()->ReceiveFd(fd, "ipc_test"));
SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
CreateDefaultPermissiveTestPolicy(path).TryBuild());
Sandbox2 s2(std::move(executor), std::move(policy));
s2.RunAsync();
ASSERT_TRUE(comms.SendString("hello"));
std::string resp;
ASSERT_TRUE(s2.comms()->RecvString(&resp));
ASSERT_EQ(resp, "start");
ASSERT_TRUE(s2.comms()->SendString("started"));
ASSERT_TRUE(comms.RecvString(&resp));
ASSERT_EQ(resp, "world");
ASSERT_TRUE(s2.comms()->RecvString(&resp));
ASSERT_EQ(resp, "finish");
ASSERT_TRUE(s2.comms()->SendString("finished"));
auto result = s2.AwaitResult();
ASSERT_EQ(result.final_status(), Result::OK);
ASSERT_EQ(result.reason_code(), 0);
}
// This test verifies that mapping fds by name works if SandboxMeHere() is
// called by the sandboxee.
TEST_P(IPCTest, MapFDByNamePostExecve) {
SKIP_SANITIZERS_AND_COVERAGE;
const int fd = GetParam();
const std::string path = GetTestSourcePath("sandbox2/testcases/ipc");
std::vector<std::string> args = {path, "2", std::to_string(fd)};
auto executor = std::make_unique<Executor>(path, args);
executor->set_enable_sandbox_before_exec(false);
Comms comms(executor->ipc()->ReceiveFd(fd, "ipc_test"));
SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
CreateDefaultPermissiveTestPolicy(path).TryBuild());
Sandbox2 s2(std::move(executor), std::move(policy));
s2.RunAsync();
ASSERT_TRUE(comms.SendString("hello"));
std::string resp;
ASSERT_TRUE(s2.comms()->RecvString(&resp));
ASSERT_EQ(resp, "start");
ASSERT_TRUE(s2.comms()->SendString("started"));
ASSERT_TRUE(comms.RecvString(&resp));
ASSERT_EQ(resp, "world");
ASSERT_TRUE(s2.comms()->RecvString(&resp));
ASSERT_EQ(resp, "finish");
ASSERT_TRUE(s2.comms()->SendString("finished"));
auto result = s2.AwaitResult();
ASSERT_EQ(result.final_status(), Result::OK);
ASSERT_EQ(result.reason_code(), 0);
}
TEST(IPCTest, NoMappedFDsPreExecve) {
SKIP_SANITIZERS_AND_COVERAGE;
const std::string path = GetTestSourcePath("sandbox2/testcases/ipc");
std::vector<std::string> args = {path, "3"};
auto executor = std::make_unique<Executor>(path, args);
SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
CreateDefaultPermissiveTestPolicy(path).TryBuild());
Sandbox2 s2(std::move(executor), std::move(policy));
auto result = s2.Run();
ASSERT_EQ(result.final_status(), Result::OK);
ASSERT_EQ(result.reason_code(), 0);
}
INSTANTIATE_TEST_SUITE_P(NormalFds, IPCTest, testing::Values(kPreferredIpcFd));
INSTANTIATE_TEST_SUITE_P(RestrictedFds, IPCTest,
testing::Values(Comms::kSandbox2ClientCommsFD,
Comms::kSandbox2TargetExecFD));
} // namespace
} // namespace sandbox2