netdev - [PATCH net-next 1/2] mpls: fix forwarding using v4/v6 explicit null

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Date:	Tue, 27 Oct 2015 00:37:35 +0000
From:	Robert Shearman <rshearma@...cade.com>
To:	<davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, Roopa Prabhu <roopa@...ulusnetworks.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Robert Shearman <rshearma@...cade.com>
Subject: [PATCH net-next 1/2] mpls: fix forwarding using v4/v6 explicit null

Fill in the via address length for the predefined IPv4 and IPv6
explicit-null label routes.

Fixes: f8efb73c97e2 ("mpls: multipath route support")
Signed-off-by: Robert Shearman <rshearma@...cade.com>
---
 net/mpls/af_mpls.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index cc972e30355b..1c58662db4b2 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -1345,6 +1345,7 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 		rt0->rt_protocol = RTPROT_KERNEL;
 		rt0->rt_payload_type = MPT_IPV4;
 		rt0->rt_nh->nh_via_table = NEIGH_LINK_TABLE;
+		rt0->rt_nh->nh_via_alen = lo->addr_len;
 		memcpy(rt0->rt_nh->nh_via, lo->dev_addr, lo->addr_len);
 	}
 	if (limit > MPLS_LABEL_IPV6NULL) {
@@ -1356,6 +1357,7 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 		rt2->rt_protocol = RTPROT_KERNEL;
 		rt2->rt_payload_type = MPT_IPV6;
 		rt2->rt_nh->nh_via_table = NEIGH_LINK_TABLE;
+		rt2->rt_nh->nh_via_alen = lo->addr_len;
 		memcpy(rt2->rt_nh->nh_via, lo->dev_addr, lo->addr_len);
 	}
 
-- 
2.1.4

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