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https://github.com/google/sandboxed-api.git
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71692bb50b
This allows to split monitor & stack_trace related targets. Also move stack traces related functionality into MonitorBase. PiperOrigin-RevId: 510112916 Change-Id: I60eabf9c9b3204dc369713edd8ae05fded306875
114 lines
3.3 KiB
C++
114 lines
3.3 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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// Implementation file for the sandbox2::Sandbox class.
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#include "sandboxed_api/sandbox2/sandbox2.h"
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#include <csignal>
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#include <memory>
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#include <string>
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#include <vector>
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#include "absl/base/call_once.h"
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#include "absl/log/check.h"
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#include "absl/status/statusor.h"
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#include "absl/time/time.h"
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#include "sandboxed_api/sandbox2/monitor_base.h"
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#include "sandboxed_api/sandbox2/monitor_ptrace.h"
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#include "sandboxed_api/sandbox2/result.h"
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#include "sandboxed_api/sandbox2/stack_trace.h"
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namespace sandbox2 {
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namespace {
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class Sandbox2Peer : public internal::SandboxPeer {
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public:
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static std::unique_ptr<SandboxPeer> Spawn(std::unique_ptr<Executor> executor,
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std::unique_ptr<Policy> policy) {
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return std::make_unique<Sandbox2Peer>(std::move(executor),
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std::move(policy));
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}
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Sandbox2Peer(std::unique_ptr<Executor> executor,
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std::unique_ptr<Policy> policy)
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: sandbox_(std::move(executor), std::move(policy)) {
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sandbox_.RunAsync();
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}
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Comms* comms() override { return sandbox_.comms(); }
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void Kill() override { sandbox_.Kill(); }
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Result AwaitResult() override { return sandbox_.AwaitResult(); }
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private:
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Sandbox2 sandbox_;
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};
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} // namespace
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absl::StatusOr<Result> Sandbox2::AwaitResultWithTimeout(
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absl::Duration timeout) {
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CHECK(monitor_ != nullptr) << "Sandbox was not launched yet";
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return monitor_->AwaitResultWithTimeout(timeout);
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}
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Result Sandbox2::AwaitResult() {
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return AwaitResultWithTimeout(absl::InfiniteDuration()).value();
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}
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bool Sandbox2::RunAsync() {
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Launch();
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// If the sandboxee setup failed we return 'false' here.
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if (monitor_->IsDone() &&
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monitor_->result().final_status() == Result::SETUP_ERROR) {
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return false;
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}
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return true;
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}
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void Sandbox2::Kill() {
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CHECK(monitor_ != nullptr) << "Sandbox was not launched yet";
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monitor_->Kill();
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}
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void Sandbox2::DumpStackTrace() {
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CHECK(monitor_ != nullptr) << "Sandbox was not launched yet";
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monitor_->DumpStackTrace();
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}
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bool Sandbox2::IsTerminated() const {
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CHECK(monitor_ != nullptr) << "Sandbox was not launched yet";
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return monitor_->IsDone();
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}
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void Sandbox2::set_walltime_limit(absl::Duration limit) const {
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CHECK(monitor_ != nullptr) << "Sandbox was not launched yet";
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monitor_->SetWallTimeLimit(limit);
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}
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void Sandbox2::Launch() {
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static absl::once_flag init_sandbox_peer_flag;
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absl::call_once(init_sandbox_peer_flag, []() {
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internal::SandboxPeer::spawn_fn_ = Sandbox2Peer::Spawn;
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});
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monitor_ = std::make_unique<PtraceMonitor>(executor_.get(), policy_.get(),
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notify_.get());
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monitor_->Launch();
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}
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} // namespace sandbox2
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