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authorakoshibe <akoshibe@cvs.openbsd.org>2018-08-09 03:35:20 +0000
committerakoshibe <akoshibe@cvs.openbsd.org>2018-08-09 03:35:20 +0000
commitc221273428cdfb607e65e71b17d823669e67b8d1 (patch)
treed60ace4e7bab86cf6a00ee6a023302526e640399 /sys
parentad725f4bc50bf4b1af333640f417fa3186b7fed9 (diff)
Currently, attempting to move an immovable lo(4) to a new rdomain will fail
with an EPERM, but the target rdomain will still be created. Move the check for an lo(4)'s if_index/if_rdomain to before the creation of a nonexisting target routing table. ok benno@ claudio@ mpi@
Diffstat (limited to 'sys')
-rw-r--r--sys/net/if.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/net/if.c b/sys/net/if.c
index e6546dff224..7097eb278ef 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if.c,v 1.558 2018/07/11 09:08:21 henning Exp $ */
+/* $OpenBSD: if.c,v 1.559 2018/08/09 03:35:19 akoshibe Exp $ */
/* $NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $ */
/*
@@ -1743,6 +1743,10 @@ if_setrdomain(struct ifnet *ifp, int rdomain)
if (rdomain < 0 || rdomain > RT_TABLEID_MAX)
return (EINVAL);
+ if ((ifp->if_flags & IFF_LOOPBACK) &&
+ (ifp->if_index == rtable_loindex(ifp->if_rdomain)))
+ return (EPERM);
+
/*
* Create the routing table if it does not exist, including its
* loopback interface with unit == rdomain.
@@ -1777,10 +1781,6 @@ if_setrdomain(struct ifnet *ifp, int rdomain)
return (EINVAL);
if (rdomain != ifp->if_rdomain) {
- if ((ifp->if_flags & IFF_LOOPBACK) &&
- (ifp->if_index == rtable_loindex(ifp->if_rdomain)))
- return (EPERM);
-
s = splnet();
/*
* We are tearing down the world.