From cbd2257dc96e3e46217540fcb095a757ffa20d96 Mon Sep 17 00:00:00 2001 From: Fernando Fernandez Mancera Date: Tue, 2 Sep 2025 13:28:08 +0200 Subject: netfilter: nft_meta_bridge: introduce NFT_META_BRI_IIFHWADDR support Expose the input bridge interface ethernet address so it can be used to redirect the packet to the receiving physical device for processing. Tested with nft command line tool. table bridge nat { chain PREROUTING { type filter hook prerouting priority 0; policy accept; ether daddr de:ad:00:00:be:ef meta pkttype set host ether daddr set meta ibrhwdr accept } } Joint work with Pablo Neira. Signed-off-by: Fernando Fernandez Mancera Signed-off-by: Florian Westphal --- include/uapi/linux/netfilter/nf_tables.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index 8e0eb832bc01..7c0c915f0306 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -959,6 +959,7 @@ enum nft_exthdr_attributes { * @NFT_META_SDIF: slave device interface index * @NFT_META_SDIFNAME: slave device interface name * @NFT_META_BRI_BROUTE: packet br_netfilter_broute bit + * @NFT_META_BRI_IIFHWADDR: packet input bridge interface ethernet address */ enum nft_meta_keys { NFT_META_LEN, @@ -999,6 +1000,7 @@ enum nft_meta_keys { NFT_META_SDIFNAME, NFT_META_BRI_BROUTE, __NFT_META_IIFTYPE, + NFT_META_BRI_IIFHWADDR, }; /** -- cgit v1.2.3