diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/netinet/tcp_output.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c index ca212672e666..586a5bd2ba1e 100644 --- a/sys/netinet/tcp_output.c +++ b/sys/netinet/tcp_output.c @@ -801,13 +801,14 @@ send: * IP, TCP and Options length to keep ip->ip_len from * overflowing. Prevent the last segment from being * fractional thus making them all equal sized and set - * the flag to continue sending. + * the flag to continue sending. TSO is disabled when + * IP options or IPSEC are present. */ if (len + optlen + ipoptlen > tp->t_maxopd) { flags &= ~TH_FIN; if (tso) { if (len > TCP_MAXWIN - hdrlen) { - len = TCP_MAXWIN - hdrlen; + len = TCP_MAXWIN - hdrlen - optlen; len = len - (len % (tp->t_maxopd - optlen)); sendalot = 1; } else if (tp->t_flags & TF_NEEDFIN) |