pcap_reader.hpp

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#ifndef PCAP_READER_H
#define PCAP_READER_H
 
#include <cstdint>
#include <pcap/pcap.h>
#include <septentrio_gnss_driver/abstraction/typedefs.hpp>
#include <vector>
 
namespace pcapReader {
 
    using buffer_t = std::vector<uint8_t>;
 
    enum ReadResult
    {
        READ_SUCCESS = 0,
        READ_INSUFFICIENT_DATA = 1,
        READ_TIMEOUT = 2,
        READ_INTERRUPTED = 3,
        READ_ERROR = -1,
        READ_PARSE_FAILED = -2
 
    };
 
    class PcapDevice
    {
    public:
        static const size_t BUFFSIZE = 100;
 
        explicit PcapDevice(ROSaicNodeBase* node, buffer_t& buffer);
 
        bool connect(const char* device);
 
        void disconnect();
 
        bool isConnected() const;
 
        ReadResult read();
 
        ~PcapDevice();
 
    private:
        ROSaicNodeBase* node_;
        buffer_t& m_dataBuff;
        pcap_t* m_device{nullptr};
        bpf_program m_pktFilter{};
        char m_errBuff[BUFFSIZE]{};
        char* m_deviceName;
        buffer_t m_lastPkt;
    };
} // namespace pcapReader
 
#endif // PCAP_READER_H