Commit 3e511d56 authored by wenxu's avatar wenxu Committed by Pablo Neira Ayuso
Browse files

netfilter: nft_tunnel: Add dst_cache support 



The metadata_dst does not initialize the dst_cache field, this causes
problems to ip_md_tunnel_xmit() since it cannot use this cache, hence,
Triggering a route lookup for every packet.

Signed-off-by: default avatarwenxu <wenxu@ucloud.cn>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent be0502a3

net/netfilter/nft_tunnel.c

+7 −0
Original line number Diff line number Diff line
@@ -406,6 +406,13 @@ static int nft_tunnel_obj_init(const struct nft_ctx *ctx, 
		return -ENOMEM;



	memcpy(&md->u.tun_info, &info, sizeof(info));

#ifdef CONFIG_DST_CACHE

	err = dst_cache_init(&md->u.tun_info.dst_cache, GFP_KERNEL);

	if (err < 0) {

		metadata_dst_free(md);

		return err;

	}

#endif

	ip_tunnel_info_opts_set(&md->u.tun_info, &priv->opts.u, priv->opts.len,

				priv->opts.flags);

	priv->md = md;

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