diff options
Diffstat (limited to 'epan/dissectors/packet-tcp.c')
| -rw-r--r-- | epan/dissectors/packet-tcp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/epan/dissectors/packet-tcp.c b/epan/dissectors/packet-tcp.c index 8831e07996..8e3473d769 100644 --- a/epan/dissectors/packet-tcp.c +++ b/epan/dissectors/packet-tcp.c @@ -1247,11 +1247,14 @@ finished_fwd: finished_checking_retransmission_type: nextseq = seq+seglen; - if (seglen || flags&(TH_SYN|TH_FIN)) { - /* add this new sequence number to the fwd list */ + if ((seglen || flags&(TH_SYN|TH_FIN)) && tcpd->fwd->segment_count < TCP_MAX_UNACKED_SEGMENTS) { + /* Add this new sequence number to the fwd list. But only if there + * aren't "too many" unacked segements (e.g., we're not seeing the ACKs). + */ ual = wmem_new(wmem_file_scope(), tcp_unacked_t); ual->next=tcpd->fwd->segments; tcpd->fwd->segments=ual; + tcpd->fwd->segment_count++; ual->frame=pinfo->fd->num; ual->seq=seq; ual->ts=pinfo->fd->abs_ts; @@ -1354,6 +1357,7 @@ finished_checking_retransmission_type: } wmem_free(wmem_file_scope(), ual); ual = tmpual; + tcpd->rev->segment_count--; } /* how many bytes of data are there in flight after this frame |