1 // Copyright 2019 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 SANDBOXED_API_SANDBOX2_BPFDISASSEMBLER_H_ 16 #define SANDBOXED_API_SANDBOX2_BPFDISASSEMBLER_H_ 17 18 #include <string> 19 20 #include "absl/types/span.h" 21 22 struct sock_filter; 23 24 namespace sandbox2 { 25 namespace bpf { 26 27 // Decodes a BPF instruction into textual representation. 28 std::string DecodeInstruction(const sock_filter& inst, int pc); 29 30 // Disassembles a BPF program. 31 // Returns a human-readable textual represenation. 32 std::string Disasm(absl::Span<const sock_filter> prog); 33 34 } // namespace bpf 35 } // namespace sandbox2 36 37 #endif // SANDBOXED_API_SANDBOX2_BPFDISASSEMBLER_H_ 38