diff options
| author | Florian Westphal <fw@strlen.de> | 2017-08-08 15:15:29 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-08-19 13:15:10 +0200 |
| commit | 99d1712bc41c7c9a5a473c104a4ad15427757b22 (patch) | |
| tree | e7ae87c827ad02d0d132afc1532406fab5ec3ef0 /include | |
| parent | netfilter: exthdr: split netlink dump function (diff) | |
| download | linux-99d1712bc41c7c9a5a473c104a4ad15427757b22.tar.xz linux-99d1712bc41c7c9a5a473c104a4ad15427757b22.zip | |
netfilter: exthdr: tcp option set support
This allows setting 2 and 4 byte quantities in the tcp option space.
Main purpose is to allow native replacement for xt_TCPMSS to
work around pmtu blackholes.
Writes to kind and len are now allowed at the moment, it does not seem
useful to do this as it causes corruption of the tcp option space.
We can always lift this restriction later if a use-case appears.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/netfilter/nf_tables.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index be25cf69295b..40fd199f7531 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -732,7 +732,8 @@ enum nft_exthdr_op { * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32) * @NFTA_EXTHDR_LEN: extension header length (NLA_U32) * @NFTA_EXTHDR_FLAGS: extension header flags (NLA_U32) - * @NFTA_EXTHDR_OP: option match type (NLA_U8) + * @NFTA_EXTHDR_OP: option match type (NLA_U32) + * @NFTA_EXTHDR_SREG: option match type (NLA_U32) */ enum nft_exthdr_attributes { NFTA_EXTHDR_UNSPEC, @@ -742,6 +743,7 @@ enum nft_exthdr_attributes { NFTA_EXTHDR_LEN, NFTA_EXTHDR_FLAGS, NFTA_EXTHDR_OP, + NFTA_EXTHDR_SREG, __NFTA_EXTHDR_MAX }; #define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1) |