pcapng.hpp

#pragma once

#include<vector>

namespace ilia {
namespace pcapng {

struct Option {
   uint16_t code;
   uint16_t length;
   const void *value;
};

const uint32_t SHB_HARDWARE = 2;
const uint32_t SHB_OS = 3;
const uint32_t SHB_USERAPPL = 4;

const uint32_t LINKTYPE_USER0 = 147; // HIPC message
const uint32_t LINKTYPE_USER1 = 148; // CMIF message

class Writer {
  public:
   Writer(FILE *file);
   
   void WriteSHB(Option *options);
   uint32_t WriteIDB(uint16_t link_type, uint32_t snap_len, Option *options);
   void WriteEPB(uint32_t if_id, uint64_t timestamp, uint32_t cap_length, uint32_t orig_length, const void *data, Option *options);
  private:
   FILE *file;
   
   std::vector<uint8_t> block_buffer;

   void OpenBlock(uint32_t block_type);
   void AppendToBlock(const uint8_t *data, size_t size);
   void AppendOptions(Option *options);
   void CommitBlock();

   int interface_id = 0;
};

} // namespace pcapng
} // namespace ilia