1 // Copyright 2022 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef CONTRIB_LIBRAW_SANDBOXED_H_ 16 #define CONTRIB_LIBRAW_SANDBOXED_H_ 17 18 #include <libgen.h> 19 #include <syscall.h> 20 21 #include <memory> 22 #include <string> 23 24 #include "sapi_libraw.sapi.h" // NOLINT(build/include) 25 26 class LibRawSapiSandbox : public LibRawSandbox { 27 public: LibRawSapiSandbox(std::string file_name)28 explicit LibRawSapiSandbox(std::string file_name) 29 : file_name_(std::move(file_name)) {} 30 31 private: ModifyPolicy(sandbox2::PolicyBuilder *)32 std::unique_ptr<sandbox2::Policy> ModifyPolicy( 33 sandbox2::PolicyBuilder*) override { 34 return sandbox2::PolicyBuilder() 35 .AllowDynamicStartup() 36 .AllowOpen() 37 .AllowRead() 38 .AllowWrite() 39 .AllowSystemMalloc() 40 .AllowExit() 41 .AllowSyscalls({__NR_recvmsg}) 42 .AddFile(file_name_, /*is_ro=*/true) 43 .BuildOrDie(); 44 } 45 46 std::string file_name_; 47 }; 48 49 #endif // CONTRIB_LIBRAW_SANDBOXED_H_ 50