zeek/src/analyzer/protocol/sip/SIP_TCP.cc
Tim Wojtulewicz 8d2d867a65 Move everything in util.h to zeek::util namespace.
This commit includes renaming a number of methods prefixed with bro_ to be prefixed with zeek_.
2020-08-20 16:00:33 -07:00

69 lines
1.6 KiB
C++

// See the file "COPYING" in the main distribution directory for copyright.
//
// TODO: This is preliminary code that's not yet functional and not
// activated. We don't yet support SIP-over-TCP.
#include "SIP_TCP.h"
#include "analyzer/protocol/tcp/TCP_Reassembler.h"
#include "events.bif.h"
namespace zeek::analyzer::sip_tcp {
SIP_Analyzer::SIP_Analyzer(zeek::Connection* conn)
: zeek::analyzer::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()
{
zeek::analyzer::tcp::TCP_ApplicationAnalyzer::Done();
interp->FlowEOF(true);
interp->FlowEOF(false);
}
void SIP_Analyzer::EndpointEOF(bool is_orig)
{
zeek::analyzer::tcp::TCP_ApplicationAnalyzer::EndpointEOF(is_orig);
interp->FlowEOF(is_orig);
}
void SIP_Analyzer::DeliverStream(int len, const u_char* data, bool orig)
{
zeek::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(zeek::util::fmt("Binpac exception: %s", e.c_msg()));
}
}
void SIP_Analyzer::Undelivered(uint64_t seq, int len, bool orig)
{
zeek::analyzer::tcp::TCP_ApplicationAnalyzer::Undelivered(seq, len, orig);
had_gap = true;
interp->NewGap(orig, len);
}
} // namespace zeek::analyzer::sip_tcp