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5442d8c6e0
More flexible CMake file with variables Added logic to check whether proj.db exists and fetch it from the environment variable
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
// Copyright 2020 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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// http://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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#ifndef GDAL_SANDBOX_H_
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#define GDAL_SANDBOX_H_
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#include <iostream>
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#include <string>
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#include <syscall.h>
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#include "gdal_sapi.sapi.h"
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#include "sandboxed_api/sandbox2/util/fileops.h"
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namespace gdal::sandbox {
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class GdalSapiSandbox : public gdalSandbox {
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public:
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GdalSapiSandbox(std::string out_directory_path,
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std::string proj_db_path,
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time_t time_limit = 0)
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: gdalSandbox(),
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out_directory_path_(std::move(out_directory_path)),
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proj_db_path_(std::move(proj_db_path))
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{
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SetWallTimeLimit(time_limit).IgnoreError();
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}
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private:
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std::unique_ptr<sandbox2::Policy> ModifyPolicy(
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sandbox2::PolicyBuilder*) override {
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return sandbox2::PolicyBuilder()
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.AllowDynamicStartup()
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.AllowRead()
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.AllowSystemMalloc()
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.AllowWrite()
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.AllowExit()
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.AllowOpen()
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.AllowSyscalls({
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__NR_futex,
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__NR_getdents64, // DriverRegisterAll()
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__NR_lseek, // GDALCreate()
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__NR_getpid, // GDALCreate()
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__NR_sysinfo, // VSI_TIFFOpen_common()
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__NR_prlimit64, // CPLGetUsablePhysicalRAM()
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__NR_ftruncate, // GTiffDataset::FillEmptyTiles()
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__NR_unlink, // GDALDriver::Delete()
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})
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// TODO: Deal with proj.db so you don't need to specify exact path ih the policy
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// Add proj path a an environment variable, check it before calling constructor
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// Use default path if there is no variable
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// If there is no file on the default path return an error
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.AddFile(proj_db_path_) // proj.db is required for some projections
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.AddDirectory(out_directory_path_, /*is_ro=*/false)
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.BuildOrDie();
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}
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std::string out_directory_path_;
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std::string proj_db_path_;
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};
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} // namespace gdal::sandbox
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#endif // GDAL_SANDBOX_H_
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