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122 lines
4.3 KiB
C++
122 lines
4.3 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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// https://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/limits.h"
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#include <csignal>
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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#include "gtest/gtest.h"
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#include "sandboxed_api/sandbox2/executor.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/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::CreateDefaultPermissiveTestPolicy;
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using ::sapi::GetTestSourcePath;
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std::string GetLimitsTestcaseBinPath() {
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return GetTestSourcePath("sandbox2/testcases/limits");
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}
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TEST(LimitsTest, RLimitASMmapUnderLimit) {
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SKIP_SANITIZERS;
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const std::string path = GetLimitsTestcaseBinPath();
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std::vector<std::string> args = {path, "1"}; // mmap(1 MiB)
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auto executor = std::make_unique<sandbox2::Executor>(path, args);
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executor->limits()->set_rlimit_as(100ULL << 20); // 100 MiB
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
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CreateDefaultPermissiveTestPolicy(path).TryBuild());
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sandbox2::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(), sandbox2::Result::OK);
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EXPECT_EQ(result.reason_code(), 0);
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}
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TEST(LimitsTest, RLimitASMmapAboveLimit) {
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SKIP_SANITIZERS;
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const std::string path = GetLimitsTestcaseBinPath();
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std::vector<std::string> args = {path, "2"}; // mmap(100 MiB)
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auto executor = std::make_unique<sandbox2::Executor>(path, args);
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executor->limits()->set_rlimit_as(100ULL << 20); // 100 MiB
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
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CreateDefaultPermissiveTestPolicy(path).TryBuild());
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sandbox2::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(), sandbox2::Result::OK);
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EXPECT_EQ(result.reason_code(), 0);
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}
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TEST(LimitsTest, RLimitASAllocaSmallUnderLimit) {
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SKIP_SANITIZERS;
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const std::string path = GetLimitsTestcaseBinPath();
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std::vector<std::string> args = {path, "3"}; // alloca(1 MiB)
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auto executor = std::make_unique<sandbox2::Executor>(path, args);
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executor->limits()->set_rlimit_as(100ULL << 20); // 100 MiB
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
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CreateDefaultPermissiveTestPolicy(path).TryBuild());
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sandbox2::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(), sandbox2::Result::OK);
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EXPECT_EQ(result.reason_code(), 0);
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}
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TEST(LimitsTest, RLimitASAllocaBigUnderLimit) {
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SKIP_SANITIZERS;
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const std::string path = GetLimitsTestcaseBinPath();
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std::vector<std::string> args = {path, "4"}; // alloca(8 MiB)
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auto executor = std::make_unique<sandbox2::Executor>(path, args);
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executor->limits()->set_rlimit_as(100ULL << 20); // 100 MiB
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
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CreateDefaultPermissiveTestPolicy(path).TryBuild());
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sandbox2::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(), sandbox2::Result::SIGNALED);
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EXPECT_EQ(result.reason_code(), SIGSEGV);
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}
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TEST(LimitsTest, RLimitASAllocaBigAboveLimit) {
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SKIP_SANITIZERS;
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const std::string path = GetLimitsTestcaseBinPath();
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std::vector<std::string> args = {path, "5"}; // alloca(100 MiB)
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auto executor = std::make_unique<sandbox2::Executor>(path, args);
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executor->limits()->set_rlimit_as(100ULL << 20); // 100 MiB
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SAPI_ASSERT_OK_AND_ASSIGN(auto policy,
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CreateDefaultPermissiveTestPolicy(path).TryBuild());
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sandbox2::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(), sandbox2::Result::SIGNALED);
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EXPECT_EQ(result.reason_code(), SIGSEGV);
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}
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} // namespace
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} // namespace sandbox2
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