On 2020-01-28, at 20:09:45 +0100, Pablo Neira Ayuso wrote: > On Sun, Jan 19, 2020 at 10:57:01PM +0000, Jeremy Sowden wrote: > > The kernel supports bitwise shift operations. This patch-set adds > > the support to nft. There are a few preliminary housekeeping > > patches. > > Actually, this batch goes in the direction of adding the basic > lshift/right support. > > # nft --debug=netlink add rule x y tcp dport set tcp dport lshift 1 > ip x y > [ meta load l4proto => reg 1 ] > [ cmp eq reg 1 0x00000006 ] > [ payload load 2b @ transport header + 2 => reg 1 ] > [ byteorder reg 1 = ntoh(reg 1, 2, 2) ] > [ bitwise reg 1 = ( reg 1 << 0x00000001 ) ] > [ payload write reg 1 => 2b @ transport header + 2 csum_type 1 > csum_off 16 csum_flags 0x0 ] > > I'm applying patches 1, 2, 3, 4, 7 and 8. > > Regarding patch 5, it would be good to restore the parens when > listing. Will do. > Patch 6, I guess it will break something else. Did you run tests/py to > check this? I did and I got the same results before and after applying it. I'll take another look. > Patch 9, I'm skipping until 5 and 6 are sorted out. J.
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