diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2022-12-30 15:10:37 +0000 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2022-12-30 15:10:37 +0000 |
| commit | 34a662c6af90f4bd5f2ae184aeb126342e4e799e (patch) | |
| tree | f7442fcaeee44c02a553c305a0c6bfb471244d35 /sys/src/9/ip/tcp.c | |
| parent | 6b5de9ee6738c0f52122978130d4a8a508d75739 (diff) | |
tcp: only create new translation when SYN packet
Diffstat (limited to 'sys/src/9/ip/tcp.c')
| -rw-r--r-- | sys/src/9/ip/tcp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/src/9/ip/tcp.c b/sys/src/9/ip/tcp.c index bd4616d93..5b6bda262 100644 --- a/sys/src/9/ip/tcp.c +++ b/sys/src/9/ip/tcp.c @@ -3292,6 +3292,10 @@ tcpforward(Proto *tcp, Block *bp, Route *r) dp = nhgets(h4->tcpdport); sp = nhgets(h4->tcpsport); + /* don't make new translation when not syn packet */ + if((h4->tcpflag[1] & (ACK|RST|SYN|FIN)) != SYN) + r = nil; + qlock(tcp); q = transforward(tcp, &((Tcppriv*)tcp->priv)->ht, sa, sp, da, dp, r); if(q == nil){ |