[PATCH 06/23] netfilter: nf_tables: add nfproto support to meta expression
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: 2014-01-10 00:35:25
Also in:
netfilter-devel
Subsystem:
netfilter, networking [general], the rest · Maintainers:
Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Patrick McHardy <redacted> Needed by multi-family tables to distinguish IPv4 and IPv6 packets. Signed-off-by: Patrick McHardy <redacted> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- 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 aa86a152..10afbfc 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 1ceaaa6..999d046 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:
--
1.7.10.4