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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-05-31 19:04:11 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-08-07 12:49:49 +0300 |
| commit | d877f07112f1e5a247c6b585c971a93895c9f738 (patch) | |
| tree | 6ff7fa3d31b94ef6cbe88284d63f93bdab8a35fb /include/net/netfilter | |
| parent | bbde9fc1824aab58bc78c084163007dd6c03fe5b (diff) | |
| download | linux-d877f07112f1e5a247c6b585c971a93895c9f738.tar.xz | |
netfilter: nf_tables: add nft_dup expression
This new expression uses the nf_dup engine to clone packets to a given gateway.
Unlike xt_TEE, we use an index to indicate output interface which should be
fine at this stage.
Moreover, change to the preemtion-safe this_cpu_read(nf_skb_duplicated) from
nf_dup_ipv{4,6} to silence a lockdep splat.
Based on the original tee expression from Arturo Borrero Gonzalez, although
this patch has diverted quite a bit from this initial effort due to the
change to support maps.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter')
| -rw-r--r-- | include/net/netfilter/nft_dup.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/netfilter/nft_dup.h b/include/net/netfilter/nft_dup.h new file mode 100644 index 000000000000..6b84cf6491a2 --- /dev/null +++ b/include/net/netfilter/nft_dup.h @@ -0,0 +1,9 @@ +#ifndef _NFT_DUP_H_ +#define _NFT_DUP_H_ + +struct nft_dup_inet { + enum nft_registers sreg_addr:8; + enum nft_registers sreg_dev:8; +}; + +#endif /* _NFT_DUP_H_ */ |