diff options
Diffstat (limited to 'sys/netinet/tcp_output.c')
| -rw-r--r-- | sys/netinet/tcp_output.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c index 50973c4..4327c7e 100644 --- a/sys/netinet/tcp_output.c +++ b/sys/netinet/tcp_output.c @@ -153,7 +153,7 @@ tcp_output(struct tcpcb *tp) int idle, sendalot; int sack_rxmit, sack_bytes_rxmt; struct sackhole *p; - int tso = 0; + int tso; struct tcpopt to; #if 0 int maxburst = TCP_MAXBURST; @@ -211,6 +211,7 @@ again: SEQ_LT(tp->snd_nxt, tp->snd_max)) tcp_sack_adjust(tp); sendalot = 0; + tso = 0; off = tp->snd_nxt - tp->snd_una; sendwin = min(tp->snd_wnd, tp->snd_cwnd); sendwin = min(sendwin, tp->snd_bwnd); @@ -490,9 +491,9 @@ after_sack_rexmit: } else { len = tp->t_maxseg; sendalot = 1; - tso = 0; } } + if (sack_rxmit) { if (SEQ_LT(p->rxmit + len, tp->snd_una + so->so_snd.sb_cc)) flags &= ~TH_FIN; @@ -1051,6 +1052,8 @@ send: * XXX: Fixme: This is currently not the case for IPv6. */ if (tso) { + KASSERT(len > tp->t_maxopd - optlen, + ("%s: len <= tso_segsz", __func__)); m->m_pkthdr.csum_flags |= CSUM_TSO; m->m_pkthdr.tso_segsz = tp->t_maxopd - optlen; } |
