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authorprovos <provos@openbsd.org>2000-09-18 22:06:36 +0000
committerprovos <provos@openbsd.org>2000-09-18 22:06:36 +0000
commit62c4355e0f896ae5d33dc8e181b593b965dc1a7c (patch)
tree227ac38b9696134dc2a925911c014f9a9500df85 /sys/netinet/tcp_output.c
parentfix reversed muting; patch from: jason@ (diff)
downloadwireguard-openbsd-62c4355e0f896ae5d33dc8e181b593b965dc1a7c.tar.xz
wireguard-openbsd-62c4355e0f896ae5d33dc8e181b593b965dc1a7c.zip
Path MTU discovery based on NetBSD but with the decision to use the DF
flag delayed to ip_output(). That halves the code and reduces most of the route lookups. okay deraadt@
Diffstat (limited to 'sys/netinet/tcp_output.c')
-rw-r--r--sys/netinet/tcp_output.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c
index a746eea1b41..8b6ad202982 100644
--- a/sys/netinet/tcp_output.c
+++ b/sys/netinet/tcp_output.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tcp_output.c,v 1.31 2000/09/05 21:57:41 provos Exp $ */
+/* $OpenBSD: tcp_output.c,v 1.32 2000/09/18 22:06:38 provos Exp $ */
/* $NetBSD: tcp_output.c,v 1.16 1997/06/03 16:17:09 kml Exp $ */
/*
@@ -1033,7 +1033,9 @@ send:
ip->ip_tos = tp->t_inpcb->inp_ip.ip_tos;
}
error = ip_output(m, tp->t_inpcb->inp_options,
- &tp->t_inpcb->inp_route, so->so_options & SO_DONTROUTE,
+ &tp->t_inpcb->inp_route,
+ (ip_mtudisc ? IP_MTUDISC : 0) |
+ (so->so_options & SO_DONTROUTE),
0, tp->t_inpcb);
break;
#endif /* INET */