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Commit 4f3221de authored by David Ahern's avatar David Ahern Committed by Greg Kroah-Hartman
Browse files

mpls: Return error for RTA_GATEWAY attribute 



[ Upstream commit be48220edd48ca0d569782992840488a52373a24 ]

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: 03c05665 ("mpls: Netlink commands to add, remove, and dump routes")
Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a68d31cc

net/mpls/af_mpls.c

+3 −0
Original line number Diff line number Diff line
@@ -1822,6 +1822,9 @@ 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,