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authorGeorge Wilkie <gwilkie@vyatta.att-mail.com>2019-06-07 11:49:41 +0100
committerDavid S. Miller <davem@davemloft.net>2019-06-09 13:26:34 -0700
commit2f3f7d1fa0d1039b24a55d127ed190f196fc3e79 (patch)
tree460037ec16968d82f3d3d9e3a75f8b6ce4c3adfe /net/mpls
parenta9520543b123bbd7275a0ab8d0375a5412683b41 (diff)
downloadlinux-stericsson-2f3f7d1fa0d1039b24a55d127ed190f196fc3e79.tar.gz
mpls: fix warning with multi-label encap
If you configure a route with multiple labels, e.g. ip route add 10.10.3.0/24 encap mpls 16/100 via 10.10.2.2 dev ens4 A warning is logged: kernel: [ 130.561819] netlink: 'ip': attribute type 1 has an invalid length. This happens because mpls_iptunnel_policy has set the type of MPLS_IPTUNNEL_DST to fixed size NLA_U32. Change it to a minimum size. nla_get_labels() does the remaining validation. Fixes: e3e4712ec096 ("mpls: ip tunnel support") Signed-off-by: George Wilkie <gwilkie@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mpls')
-rw-r--r--net/mpls/mpls_iptunnel.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mpls/mpls_iptunnel.c b/net/mpls/mpls_iptunnel.c
index 500596130760..d25e91d7bdc1 100644
--- a/net/mpls/mpls_iptunnel.c
+++ b/net/mpls/mpls_iptunnel.c
@@ -23,7 +23,7 @@
#include "internal.h"
static const struct nla_policy mpls_iptunnel_policy[MPLS_IPTUNNEL_MAX + 1] = {
- [MPLS_IPTUNNEL_DST] = { .type = NLA_U32 },
+ [MPLS_IPTUNNEL_DST] = { .len = sizeof(u32) },
[MPLS_IPTUNNEL_TTL] = { .type = NLA_U8 },
};