This patch is to add the nest attr OPTS_ERSPAN/VXLAN when dumping
KEY_OPTS, and it would be helpful when parsing in userpace. Also,
this is needed for supporting multiple geneve opts in the future
patches.
Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
---
net/netfilter/nft_tunnel.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nft_tunnel.c b/net/netfilter/nft_tunnel.c
index 576437f..e9b94b8 100644
--- a/net/netfilter/nft_tunnel.c
+++ b/net/netfilter/nft_tunnel.c
@@ -468,17 +468,24 @@ static int nft_tunnel_opts_dump(struct sk_buff *skb,
struct nft_tunnel_obj *priv)
{
struct nft_tunnel_opts *opts = &priv->opts;
- struct nlattr *nest;
+ struct nlattr *nest, *inner;
nest = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS);
if (!nest)
return -1;
if (opts->flags & TUNNEL_VXLAN_OPT) {
+ inner = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS_VXLAN);
+ if (!inner)
+ return -1;
if (nla_put_u32(skb, NFTA_TUNNEL_KEY_VXLAN_GBP,
opts->u.vxlan.gbp))
return -1;
+ nla_nest_end(skb, inner);
} else if (opts->flags & TUNNEL_ERSPAN_OPT) {
+ inner = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS_ERSPAN);
+ if (!inner)
+ return -1;
if (nla_put_u8(skb, NFTA_TUNNEL_KEY_ERSPAN_VERSION,
opts->u.erspan.version))
return -1;
@@ -496,6 +503,7 @@ static int nft_tunnel_opts_dump(struct sk_buff *skb,
return -1;
break;
}
+ nla_nest_end(skb, inner);
}
nla_nest_end(skb, nest);
--
2.1.0
