From be48220edd48ca0d569782992840488a52373a24 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 26 Feb 2019 09:00:04 -0800 Subject: mpls: Return error for RTA_GATEWAY attribute MPLS does not support nexthops with an MPLS address family. Specifically, it does not handle RTA_GATEWAY attribute. Make it clear by returning an error. Fixes: 03c0566542f4c ("mpls: Netlink commands to add, remove, and dump routes") Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/mpls/af_mpls.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/mpls/af_mpls.c') diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 7d55d4c04088..fa763e2e50ec 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -1838,6 +1838,9 @@ static int rtm_to_route_config(struct sk_buff *skb, goto errout; break; } + case RTA_GATEWAY: + NL_SET_ERR_MSG(extack, "MPLS does not support RTA_GATEWAY attribute"); + goto errout; case RTA_VIA: { if (nla_get_via(nla, &cfg->rc_via_alen, -- cgit