diff options
| author | jhb <jhb@FreeBSD.org> | 2009-06-16 19:00:12 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2009-06-16 19:00:12 +0000 |
| commit | 8869d432a2258b351ac462613e9dc2ff6fad6124 (patch) | |
| tree | db55da8ef9941c8dbd81dba4814590bc7fcffda1 /sys/netinet/tcp_input.c | |
| parent | 43c09e3d009062ccaa9dc975306c4a8963eb8536 (diff) | |
| download | FreeBSD-src-8869d432a2258b351ac462613e9dc2ff6fad6124.zip FreeBSD-src-8869d432a2258b351ac462613e9dc2ff6fad6124.tar.gz | |
Fix edge cases with ticks wrapping from INT_MAX to INT_MIN in the handling
of the per-tcpcb t_badtrxtwin.
Submitted by: bde
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 6bfb723..371dd1ef 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -1296,7 +1296,7 @@ tcp_do_segment(struct mbuf *m, struct tcphdr *th, struct socket *so, * "bad retransmit" recovery. */ if (tp->t_rxtshift == 1 && - ticks < tp->t_badrxtwin) { + (int)(ticks - tp->t_badrxtwin) < 0) { TCPSTAT_INC(tcps_sndrexmitbad); tp->snd_cwnd = tp->snd_cwnd_prev; tp->snd_ssthresh = @@ -2253,7 +2253,7 @@ process_ACK: * original cwnd and ssthresh, and proceed to transmit where * we left off. */ - if (tp->t_rxtshift == 1 && ticks < tp->t_badrxtwin) { + if (tp->t_rxtshift == 1 && (int)(ticks - tp->t_badrxtwin) < 0) { TCPSTAT_INC(tcps_sndrexmitbad); tp->snd_cwnd = tp->snd_cwnd_prev; tp->snd_ssthresh = tp->snd_ssthresh_prev; |
