zeek/src/analyzer/protocol/mysql/MySQL.cc

69 lines
1.5 KiB
C++

// See the file "COPYING" in the main distribution directory for copyright.
#include "zeek/analyzer/protocol/mysql/MySQL.h"
#include "zeek/analyzer/protocol/tcp/TCP_Reassembler.h"
#include "zeek/Reporter.h"
#include "analyzer/protocol/mysql/events.bif.h"
namespace zeek::analyzer::mysql {
MySQL_Analyzer::MySQL_Analyzer(Connection* c)
: analyzer::tcp::TCP_ApplicationAnalyzer("MySQL", c)
{
interp = new binpac::MySQL::MySQL_Conn(this);
had_gap = false;
}
MySQL_Analyzer::~MySQL_Analyzer()
{
delete interp;
}
void MySQL_Analyzer::Done()
{
analyzer::tcp::TCP_ApplicationAnalyzer::Done();
interp->FlowEOF(true);
interp->FlowEOF(false);
}
void MySQL_Analyzer::EndpointEOF(bool is_orig)
{
analyzer::tcp::TCP_ApplicationAnalyzer::EndpointEOF(is_orig);
interp->FlowEOF(is_orig);
}
void MySQL_Analyzer::DeliverStream(int len, const u_char* data, bool orig)
{
analyzer::tcp::TCP_ApplicationAnalyzer::DeliverStream(len, data, orig);
assert(TCP());
if ( TCP()->IsPartial() )
return;
if ( had_gap )
// If only one side had a content gap, we could still try to
// deliver data to the other side if the script layer can
// handle this.
return;
try
{
interp->NewData(orig, data, data + len);
}
catch ( const binpac::Exception& e )
{
ProtocolViolation(util::fmt("Binpac exception: %s", e.c_msg()));
}
}
void MySQL_Analyzer::Undelivered(uint64_t seq, int len, bool orig)
{
analyzer::tcp::TCP_ApplicationAnalyzer::Undelivered(seq, len, orig);
had_gap = true;
interp->NewGap(orig, len);
}
} // namespace zeek::analyzer::mysql