From 124edfa9e0451e97d621cd2796a44ff499e21036 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 3 Jan 2014 12:16:17 +0000 Subject: [PATCH] netfilter: nf_tables: add nfproto support to meta expression Needed by multi-family tables to distinguish IPv4 and IPv6 packets. Signed-off-by: Patrick McHardy Signed-off-by: Pablo Neira Ayuso --- include/uapi/linux/netfilter/nf_tables.h | 2 ++ net/netfilter/nft_meta.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index aa86a15293e1..10afbfc0e66a 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -531,6 +531,7 @@ enum nft_exthdr_attributes { * @NFT_META_NFTRACE: packet nftrace bit * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid) * @NFT_META_SECMARK: packet secmark (skb->secmark) + * @NFT_META_NFPROTO: netfilter protocol */ enum nft_meta_keys { NFT_META_LEN, @@ -548,6 +549,7 @@ enum nft_meta_keys { NFT_META_NFTRACE, NFT_META_RTCLASSID, NFT_META_SECMARK, + NFT_META_NFPROTO, }; /** diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c index 1ceaaa6dfe72..999d04688433 100644 --- a/net/netfilter/nft_meta.c +++ b/net/netfilter/nft_meta.c @@ -43,6 +43,9 @@ static void nft_meta_get_eval(const struct nft_expr *expr, case NFT_META_PROTOCOL: *(__be16 *)dest->data = skb->protocol; break; + case NFT_META_NFPROTO: + dest->data[0] = pkt->ops->pf; + break; case NFT_META_PRIORITY: dest->data[0] = skb->priority; break; @@ -181,6 +184,7 @@ static int nft_meta_init_validate_get(uint32_t key) switch (key) { case NFT_META_LEN: case NFT_META_PROTOCOL: + case NFT_META_NFPROTO: case NFT_META_PRIORITY: case NFT_META_MARK: case NFT_META_IIF: -- 2.34.1