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fix detection of a new TCP stream

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This commit is contained in:
Martin Beran
2019-03-18 13:44:51 +01:00
parent 0573808aeb
commit 62a803c55c
1 changed files with 2 additions and 1 deletions
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3
src/tcp_ip/stream_follower.cpp
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@@ -84,7 +84,8 @@ void StreamFollower::process_packet(PDU& packet, const timestamp_type& ts) {
if (iter == streams_.end()) {
// Start tracking if they're either SYNs or they contain data (attach
// to an already running flow).
const bool is_syn = tcp->has_flags(TCP::SYN);
// Start on client's SYN, not on server's SYN+ACK
const bool is_syn = tcp->has_flags(TCP::SYN) && !tcp->has_flags(TCP::ACK);
if (is_syn || (attach_to_flows_ && tcp->find_pdu<RawPDU>() != 0)) {
iter = streams_.insert(make_pair(identifier, Stream(packet, ts))).first;
iter->second.setup_flows_callbacks();