sandboxed-api/oss-internship-2020/gdal/raster_to_gtiff/gdal_sandbox.h

67 lines
2.1 KiB
C
Raw Normal View History

// 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.
#ifndef RASTER_TO_GTIFF_GDAL_SANDBOX_H_
#define RASTER_TO_GTIFF_GDAL_SANDBOX_H_
#include <syscall.h>
#include <string>
#include "gdal_sapi.sapi.h" // NOLINT(build/include)
namespace gdal::sandbox {
class GdalSapiSandbox : public GdalSandbox {
public:
GdalSapiSandbox(std::string out_directory_path, std::string proj_db_path,
time_t time_limit = 0)
: out_directory_path_(std::move(out_directory_path)),
proj_db_path_(std::move(proj_db_path)) {
SetWallTimeLimit(time_limit).IgnoreError();
}
private:
std::unique_ptr<sandbox2::Policy> ModifyPolicy(
sandbox2::PolicyBuilder*) override {
return sandbox2::PolicyBuilder()
.AllowDynamicStartup()
.AllowRead()
.AllowSystemMalloc()
.AllowWrite()
.AllowExit()
.AllowOpen()
.AllowSyscalls({
__NR_futex,
__NR_getdents64, // DriverRegisterAll()
__NR_lseek, // GDALCreate()
__NR_getpid, // GDALCreate()
__NR_sysinfo, // VSI_TIFFOpen_common()
__NR_prlimit64, // CPLGetUsablePhysicalRAM()
__NR_ftruncate, // GTiffDataset::FillEmptyTiles()
__NR_unlink, // GDALDriver::Delete()
})
.AddFile(proj_db_path_) // proj.db is required for some projections
.AddDirectory(out_directory_path_, /*is_ro=*/false)
.BuildOrDie();
}
std::string out_directory_path_;
std::string proj_db_path_;
};
} // namespace gdal::sandbox
#endif // RASTER_TO_GTIFF_GDAL_SANDBOX_H_