diff options
| author | Phil Sutter <phil@nwl.cc> | 2021-05-04 17:54:06 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-05-28 21:11:33 +0200 |
| commit | 133dc203d77dff617d9c4673973ef3859be2c476 (patch) | |
| tree | 5ec0f7906c7c4136590184e3d60721dec661856d /include/uapi | |
| parent | af9207adb6d9986be6ed64e76705cf513087e724 (diff) | |
netfilter: nft_exthdr: Support SCTP chunks
Chunks are SCTP header extensions similar in implementation to IPv6
extension headers or TCP options. Reusing exthdr expression to find and
extract field values from them is therefore pretty straightforward.
For now, this supports extracting data from chunks at a fixed offset
(and length) only - chunks themselves are an extensible data structure;
in order to make all fields available, a nested extension search is
needed.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/netfilter/nf_tables.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index 1fb4ca18ffbb..19715e2679d1 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -813,11 +813,13 @@ enum nft_exthdr_flags { * @NFT_EXTHDR_OP_IPV6: match against ipv6 extension headers * @NFT_EXTHDR_OP_TCP: match against tcp options * @NFT_EXTHDR_OP_IPV4: match against ipv4 options + * @NFT_EXTHDR_OP_SCTP: match against sctp chunks */ enum nft_exthdr_op { NFT_EXTHDR_OP_IPV6, NFT_EXTHDR_OP_TCPOPT, NFT_EXTHDR_OP_IPV4, + NFT_EXTHDR_OP_SCTP, __NFT_EXTHDR_OP_MAX }; #define NFT_EXTHDR_OP_MAX (__NFT_EXTHDR_OP_MAX - 1) |