65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
// 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
|
|
//
|
|
// 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.
|
|
|
|
#ifndef LIBPNG_SANDBOXED_H_
|
|
#define LIBPNG_SANDBOXED_H_
|
|
|
|
#include <linux/futex.h>
|
|
#include <syscall.h>
|
|
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "libpng_sapi.sapi.h" // NOLINT(build/include)
|
|
|
|
class LibPNGSapiSandbox : public LibPNGSandbox {
|
|
public:
|
|
void AddFile(const std::string& file) { files_.push_back(file); }
|
|
|
|
private:
|
|
std::unique_ptr<sandbox2::Policy> ModifyPolicy(
|
|
sandbox2::PolicyBuilder*) override {
|
|
sandbox2::PolicyBuilder builder;
|
|
builder.AllowRead()
|
|
.AllowStaticStartup()
|
|
.AllowWrite()
|
|
.AllowOpen()
|
|
.AllowExit()
|
|
.AllowStat()
|
|
.AllowMmapWithoutExec()
|
|
.AllowSystemMalloc()
|
|
.AllowSyscalls({
|
|
__NR_futex,
|
|
__NR_close,
|
|
__NR_lseek,
|
|
__NR_gettid,
|
|
__NR_sysinfo,
|
|
__NR_munmap,
|
|
__NR_recvmsg,
|
|
__NR_fcntl,
|
|
});
|
|
|
|
for (const auto& file : files_) {
|
|
builder->AddFile(file, /*is_ro=*/false);
|
|
}
|
|
|
|
return builder.BuildOrDie();
|
|
}
|
|
|
|
std::vector<std::string> files_;
|
|
};
|
|
|
|
#endif // LIBPNG_SANDBOXED_H_
|