zeek/src/packet_analysis/protocol/null/Null.cc
2020-09-23 11:13:28 -07:00

25 lines
639 B
C++

// See the file "COPYING" in the main distribution directory for copyright.
#include "Null.h"
#include "NetVar.h"
using namespace zeek::packet_analysis::Null;
NullAnalyzer::NullAnalyzer()
: zeek::packet_analysis::Analyzer("Null")
{
}
zeek::packet_analysis::AnalyzerResult NullAnalyzer::Analyze(Packet* packet, const uint8_t*& data)
{
if ( data + 4 >= packet->GetEndOfData() )
{
packet->Weird("null_analyzer_failed");
return AnalyzerResult::Failed;
}
uint32_t protocol = (data[3] << 24) + (data[2] << 16) + (data[1] << 8) + data[0];
data += 4; // skip link header
return AnalyzeInnerPacket(packet, data, protocol);
}