sandboxed-api/oss-internship-2020/jsonnet/headers/jsonnet_base_sandbox.h

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2020-09-15 21:22:47 +08:00
// Copyright 2020 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
//
// 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 <libgen.h>
#include <syscall.h>
#include "jsonnet_sapi.sapi.h"
#include "sandboxed_api/transaction.h"
#include "sandboxed_api/util/flag.h"
#include "sandboxed_api/vars.h"
class JsonnetBaseSandbox : public JsonnetSandbox {
public:
explicit JsonnetBaseSandbox(std::string in_file, std::string out_file)
: in_file_(in_file), out_file_(out_file) {}
std::unique_ptr<sandbox2::Policy> ModifyPolicy(
sandbox2::PolicyBuilder *) override {
return sandbox2::PolicyBuilder()
.AllowStaticStartup()
.AllowOpen()
.AllowRead()
.AllowWrite()
.AllowStat()
.AllowSystemMalloc()
.AllowExit()
.AllowSyscalls({
__NR_futex,
__NR_close,
})
.AddDirectoryAt(dirname(&out_file_[0]), "/output", /*is_ro=*/false)
.AddDirectoryAt(dirname(&in_file_[0]), "/input", true)
.BuildOrDie();
}
private:
std::string in_file_;
std::string out_file_;
};