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dbaf95c724
This change should make it less confusing where utility code comes from. Having it in two places made sense when we were debating whether to publish Sandbox2 separately, but not any longer. Follow-up changes will move `sandbox2/util.h` and rename the remaining `sandbox2/util` folder. PiperOrigin-RevId: 351601640 Change-Id: I6256845261f610e590c25e2c59851cc51da2d778
121 lines
4.2 KiB
C++
121 lines
4.2 KiB
C++
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sandboxed_api/sandbox2/ipc.h"
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#include <utility>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "absl/memory/memory.h"
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#include "sandboxed_api/sandbox2/comms.h"
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#include "sandboxed_api/sandbox2/executor.h"
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#include "sandboxed_api/sandbox2/policy.h"
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#include "sandboxed_api/sandbox2/policybuilder.h"
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#include "sandboxed_api/sandbox2/result.h"
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#include "sandboxed_api/sandbox2/sandbox2.h"
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#include "sandboxed_api/sandbox2/util/bpf_helper.h"
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#include "sandboxed_api/testing.h"
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#include "sandboxed_api/util/status_matchers.h"
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namespace sandbox2 {
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namespace {
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using ::sapi::GetTestSourcePath;
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constexpr int kPreferredIpcFd = 812;
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// This test verifies that mapping fds by name works if the sandbox is enabled
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// before execve.
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TEST(IPCTest, MapFDByNamePreExecve) {
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SKIP_SANITIZERS_AND_COVERAGE;
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const std::string path = GetTestSourcePath("sandbox2/testcases/ipc");
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std::vector<std::string> args = {path, "1", std::to_string(kPreferredIpcFd)};
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auto executor = absl::make_unique<Executor>(path, args);
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Comms comms(executor->ipc()->ReceiveFd(kPreferredIpcFd, "ipc_test"));
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy, PolicyBuilder()
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.DisableNamespaces()
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// Don't restrict the syscalls at all.
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.DangerDefaultAllowAll()
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.TryBuild());
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Sandbox2 s2(std::move(executor), std::move(policy));
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s2.RunAsync();
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ASSERT_TRUE(comms.SendString("hello"));
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std::string resp;
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ASSERT_TRUE(comms.RecvString(&resp));
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ASSERT_EQ(resp, "world");
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auto result = s2.AwaitResult();
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ASSERT_EQ(result.final_status(), Result::OK);
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ASSERT_EQ(result.reason_code(), 0);
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}
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// This test verifies that mapping fds by name works if SandboxMeHere() is
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// called by the sandboxee.
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TEST(IPCTest, MapFDByNamePostExecve) {
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SKIP_SANITIZERS_AND_COVERAGE;
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const std::string path = GetTestSourcePath("sandbox2/testcases/ipc");
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std::vector<std::string> args = {path, "2", std::to_string(kPreferredIpcFd)};
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auto executor = absl::make_unique<Executor>(path, args);
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executor->set_enable_sandbox_before_exec(false);
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Comms comms(executor->ipc()->ReceiveFd(kPreferredIpcFd, "ipc_test"));
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy, PolicyBuilder()
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.DisableNamespaces()
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// Don't restrict the syscalls at all.
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.DangerDefaultAllowAll()
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.TryBuild());
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Sandbox2 s2(std::move(executor), std::move(policy));
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s2.RunAsync();
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ASSERT_TRUE(comms.SendString("hello"));
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std::string resp;
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ASSERT_TRUE(comms.RecvString(&resp));
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ASSERT_EQ(resp, "world");
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auto result = s2.AwaitResult();
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ASSERT_EQ(result.final_status(), Result::OK);
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ASSERT_EQ(result.reason_code(), 0);
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}
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TEST(IPCTest, NoMappedFDsPreExecve) {
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SKIP_SANITIZERS_AND_COVERAGE;
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const std::string path = GetTestSourcePath("sandbox2/testcases/ipc");
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std::vector<std::string> args = {path, "3"};
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auto executor = absl::make_unique<Executor>(path, args);
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy, PolicyBuilder()
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.DisableNamespaces()
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// Don't restrict the syscalls at all.
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.DangerDefaultAllowAll()
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.TryBuild());
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Sandbox2 s2(std::move(executor), std::move(policy));
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auto result = s2.Run();
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ASSERT_EQ(result.final_status(), Result::OK);
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ASSERT_EQ(result.reason_code(), 0);
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}
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} // namespace
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} // namespace sandbox2
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