From: Jeremy Sowden <jeremy@azazel.net>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Netfilter Devel <netfilter-devel@vger.kernel.org>
Subject: [PATCH nf-next v4 00/10] netfilter: nft_bitwise: shift support
Date: Wed, 15 Jan 2020 21:32:06 +0000 [thread overview]
Message-ID: <20200115213216.77493-1-jeremy@azazel.net> (raw)
The connmark xtables extension supports bit-shifts. Add support for
shifts to nft_bitwise in order to allow nftables to do likewise, e.g.:
nft add rule t c oif lo ct mark set meta mark << 8 | 0xab
nft add rule t c iif lo meta mark & 0xff 0xab ct mark set meta mark >> 8
Changes since v3:
* the length of shift values sent by nft may be less than sizeof(u32).
Changes since v2:
* convert NFTA_BITWISE_DATA from u32 to nft_data;
* add check that shift value is not too large;
* use BITS_PER_TYPE to get the size of u32, rather than hard-coding it
when evaluating shifts.
Changes since v1:
* more white-space fixes;
* move bitwise op enum to UAPI;
* add NFTA_BITWISE_OP and NFTA_BITWISE_DATA;
* remove NFTA_BITWISE_LSHIFT and NFTA_BITWISE_RSHIFT;
* add helpers for initializaing, evaluating and dumping different
types of operation.
Jeremy Sowden (10):
netfilter: nf_tables: white-space fixes.
netfilter: bitwise: remove NULL comparisons from attribute checks.
netfilter: bitwise: replace gotos with returns.
netfilter: bitwise: add NFTA_BITWISE_OP attribute.
netfilter: bitwise: add helper for initializing boolean operations.
netfilter: bitwise: add helper for evaluating boolean operations.
netfilter: bitwise: add helper for dumping boolean operations.
netfilter: bitwise: only offload boolean operations.
netfilter: bitwise: add NFTA_BITWISE_DATA attribute.
netfilter: bitwise: add support for shifts.
include/uapi/linux/netfilter/nf_tables.h | 24 ++-
net/netfilter/nft_bitwise.c | 217 ++++++++++++++++++-----
net/netfilter/nft_set_bitmap.c | 4 +-
net/netfilter/nft_set_hash.c | 2 +-
4 files changed, 200 insertions(+), 47 deletions(-)
--
2.24.1
next reply other threads:[~2020-01-15 21:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 21:32 Jeremy Sowden [this message]
2020-01-15 21:32 ` [PATCH nf-next v4 01/10] netfilter: nf_tables: white-space fixes Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 02/10] netfilter: bitwise: remove NULL comparisons from attribute checks Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 03/10] netfilter: bitwise: replace gotos with returns Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 04/10] netfilter: bitwise: add NFTA_BITWISE_OP attribute Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 05/10] netfilter: bitwise: add helper for initializing boolean operations Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 06/10] netfilter: bitwise: add helper for evaluating " Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 07/10] netfilter: bitwise: add helper for dumping " Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 08/10] netfilter: bitwise: only offload " Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 09/10] netfilter: bitwise: add NFTA_BITWISE_DATA attribute Jeremy Sowden
2020-01-15 21:32 ` [PATCH nf-next v4 10/10] netfilter: bitwise: add support for shifts Jeremy Sowden
2020-01-16 8:51 ` [PATCH nf-next v4 00/10] netfilter: nft_bitwise: shift support Jeremy Sowden
2020-01-16 11:22 ` Pablo Neira Ayuso
2020-01-16 11:28 ` Pablo Neira Ayuso
2020-01-16 11:41 ` Jeremy Sowden
2020-01-16 12:09 ` Pablo Neira Ayuso
2020-01-16 12:13 ` Jeremy Sowden
2020-01-16 14:48 ` Pablo Neira Ayuso
2020-01-16 14:59 ` Jeremy Sowden
2020-01-26 11:12 ` Pablo Neira Ayuso
2020-01-27 11:13 ` Jeremy Sowden
2020-01-28 10:00 ` Pablo Neira Ayuso
2020-01-28 11:31 ` Jeremy Sowden
2020-01-28 13:18 ` Pablo Neira Ayuso
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