70 lines
2.0 KiB
C++
70 lines
2.0 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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// 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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#ifndef CONTRIB_LIBTIFF_SANDBOXED_H_
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#define CONTRIB_LIBTIFF_SANDBOXED_H_
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#include <linux/futex.h>
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#include <syscall.h>
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#include <string>
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#include <memory>
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#include <utility>
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#include "absl/flags/flag.h"
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#include "tiff_sapi.sapi.h" // NOLINT(build/include)
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class TiffSapiSandbox : public TiffSandbox {
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public:
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explicit TiffSapiSandbox(std::string dir = "", std::string file = "")
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: dir_(std::move(dir)), file_(std::move(file)) {}
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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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auto builder = sandbox2::PolicyBuilder()
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.AllowRead()
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.AllowStaticStartup()
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.AllowWrite()
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.AllowOpen()
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.AllowExit()
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.AllowStat()
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.AllowSystemMalloc()
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.AllowSyscalls({
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__NR_futex,
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__NR_close,
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__NR_lseek,
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__NR_gettid,
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__NR_sysinfo,
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__NR_mmap,
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__NR_munmap,
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});
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if (!dir_.empty()) {
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builder.AddDirectory(dir_, /*is_ro=*/false);
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}
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if (!file_.empty()) {
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builder.AddFile(file_, /*is_ro=*/false);
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}
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return builder.BuildOrDie();
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}
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std::string dir_;
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std::string file_;
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};
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#endif // CONTRIB_LIBTIFF_SANDBOXED_H_
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