// See the file "COPYING" in the main distribution directory for copyright.

#include "zeek/packet_analysis/protocol/ppp_serial/PPPSerial.h"

using namespace zeek::packet_analysis::PPPSerial;

PPPSerialAnalyzer::PPPSerialAnalyzer() : zeek::packet_analysis::Analyzer("PPPSerial") {}

bool PPPSerialAnalyzer::AnalyzePacket(size_t len, const uint8_t* data, Packet* packet) {
    if ( 4 >= len ) {
        Weird("truncated_ppp_serial_header", packet);
        return false;
    }

    // Extract protocol identifier
    uint32_t protocol = (data[2] << 8) + data[3];
    // skip link header
    return ForwardPacket(len - 4, data + 4, packet, protocol);
}
