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SIP: Fix up DPD and the TCP analyzer a bit.

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This commit is contained in:
Vlad Grigorescu 2015-03-19 19:57:05 -04:00
parent 1ea5463037
commit e2134d3cb9
9 changed files with 175 additions and 9 deletions
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65
src/analyzer/protocol/sip/SIP_TCP.cc Normal file
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// See the file "COPYING" in the main distribution directory for copyright.
#include "SIP_TCP.h"
#include "analyzer/protocol/tcp/TCP_Reassembler.h"
#include "events.bif.h"
using namespace analyzer::sip_tcp;
SIP_Analyzer::SIP_Analyzer(Connection* conn)
: tcp::TCP_ApplicationAnalyzer("SIP_TCP", conn)
{
interp = new binpac::SIP_TCP::SIP_Conn(this);
had_gap = false;
}
SIP_Analyzer::~SIP_Analyzer()
{
delete interp;
}
void SIP_Analyzer::Done()
{
tcp::TCP_ApplicationAnalyzer::Done();
interp->FlowEOF(true);
interp->FlowEOF(false);
}
void SIP_Analyzer::EndpointEOF(bool is_orig)
{
tcp::TCP_ApplicationAnalyzer::EndpointEOF(is_orig);
interp->FlowEOF(is_orig);
}
void SIP_Analyzer::DeliverStream(int len, const u_char* data, bool orig)
{
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 )
{
printf("BinPAC Exception: %s\n", e.c_msg());
ProtocolViolation(e.c_msg());
}
}
void SIP_Analyzer::Undelivered(uint64 seq, int len, bool orig)
{
tcp::TCP_ApplicationAnalyzer::Undelivered(seq, len, orig);
had_gap = true;
interp->NewGap(orig, len);
}