diff options
| author |   provos <provos@openbsd.org> | 2000-09-20 17:00:22 +0000 |
|---|---|---|
| committer | provos <provos@openbsd.org> | 2000-09-20 17:00:22 +0000 |
| commit | 39b94094a22f24a827039933d795fcc2bc0bbe6c (patch) | |
| tree | 81c642a2bc3841878b7fbc215117272e1717e9d6 /sys/netinet/tcp_output.c | |
| parent | fix in_pcbrtentry (diff) | |
| download | wireguard-openbsd-39b94094a22f24a827039933d795fcc2bc0bbe6c.tar.xz wireguard-openbsd-39b94094a22f24a827039933d795fcc2bc0bbe6c.zip | |
correctly calculate mss
Diffstat (limited to 'sys/netinet/tcp_output.c')
| -rw-r--r-- | sys/netinet/tcp_output.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c index 8b6ad202982..f1ab4a5ab05 100644 --- a/sys/netinet/tcp_output.c +++ b/sys/netinet/tcp_output.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tcp_output.c,v 1.32 2000/09/18 22:06:38 provos Exp $ */ +/* $OpenBSD: tcp_output.c,v 1.33 2000/09/20 17:00:22 provos Exp $ */ /* $NetBSD: tcp_output.c,v 1.16 1997/06/03 16:17:09 kml Exp $ */ /* @@ -512,9 +512,13 @@ send: opt[0] = TCPOPT_MAXSEG; opt[1] = 4; - mss = htons((u_int16_t) tcp_mss(tp, 0)); + mss = htons((u_int16_t) tcp_mss(tp, flags & TH_ACK ? + tp->t_maxopd : 0)); bcopy((caddr_t)&mss, (caddr_t)(opt + 2), sizeof(mss)); optlen = 4; + + if (flags & TH_ACK) + tcp_mss_update(tp); #ifdef TCP_SACK /* * If this is the first SYN of connection (not a SYN |