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authorStuart Henderson <sthen@cvs.openbsd.org>2012-11-23 20:12:04 +0000
committerStuart Henderson <sthen@cvs.openbsd.org>2012-11-23 20:12:04 +0000
commit673d5d2ec6990bc4e901b79ee906e6d0f48e65b9 (patch)
tree5fb69070cb9b4839ceee9516f7821a8180ac4759 /sys/net/if.c
parent937ba45cfaba46497bf3a2e8f8bbe0c23f07c8ba (diff)
Add SIOCGIFHARDMTU to allow retrieving the driver's maximum supported MTU
looks fine reyk@ ok mikeb@
Diffstat (limited to 'sys/net/if.c')
-rw-r--r--sys/net/if.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/net/if.c b/sys/net/if.c
index b6ccd30202f..b0a3cb87c13 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if.c,v 1.247 2012/10/23 17:41:00 claudio Exp $ */
+/* $OpenBSD: if.c,v 1.248 2012/11/23 20:12:03 sthen Exp $ */
/* $NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $ */
/*
@@ -1268,6 +1268,10 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p)
ifr->ifr_mtu = ifp->if_mtu;
break;
+ case SIOCGIFHARDMTU:
+ ifr->ifr_hardmtu = ifp->if_hardmtu;
+ break;
+
case SIOCGIFDATA:
error = copyout((caddr_t)&ifp->if_data, ifr->ifr_data,
sizeof(ifp->if_data));