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57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
// Copyright 2022 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_HUNSPELL_SANDBOXED_H_
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#define CONTRIB_HUNSPELL_SANDBOXED_H_
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#include <libgen.h>
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#include <syscall.h>
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#include "sapi_hunspell.sapi.h" // NOLINT(build/include)
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class HunspellSapiSandbox : public HunspellSandbox {
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public:
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explicit HunspellSapiSandbox(std::string affix_file_name,
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std::string dictionary_file_name)
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: affix_file_name_(std::move(affix_file_name)),
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dictionary_file_name_(std::move(dictionary_file_name)) {}
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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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.AllowStaticStartup()
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.AllowOpen()
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.AllowRead()
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.AllowWrite()
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.AllowGetPIDs()
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.AllowSystemMalloc()
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.AllowExit()
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.AllowSyscalls({
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__NR_clock_gettime,
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__NR_close,
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})
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.AddFile(affix_file_name_, /*is_ro=*/true)
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.AddFile(dictionary_file_name_, /*is_ro=*/true)
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.AllowRestartableSequencesWithProcFiles(
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sandbox2::PolicyBuilder::kAllowSlowFences) // hangs without it
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.BuildOrDie();
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}
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std::string affix_file_name_;
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std::string dictionary_file_name_;
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};
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#endif // CONTRIB_HUNSPELL_SANDBOXED_H_
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