[Bug 1739] meta mark 0x80000000 display error

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1739

--- Comment #2 from Pablo Neira Ayuso <pablo at netfilter.org> ---
(In reply to Phil Sutter from comment #1)
> It is merely a display issue at least:
> 
> # nft --debug=netlink add rule t c 'meta mark and 0x80000000 != 0'          
> 
> ip t c
>   [ meta load mark => reg 1 ]
>   [ bitwise reg 1 = ( reg 1 & 0x80000000 ) ^ 0x00000000 ]
>   [ cmp neq reg 1 0x00000000 ]
> 
> # nft --debug=netlink list chain t c
> ip t c 2
>   [ meta load mark => reg 1 ]
>   [ bitwise reg 1 = ( reg 1 & 0x80000000 ) ^ 0x00000000 ]
>   [ cmp neq reg 1 0x00000000 ]
> 
> table ip t {
> 	chain c {
> 		meta mark != 0x00000000/1
> 	}
> }

It is possible to disable prefix notation in meta mark if it is difficult to
understand.

0x80000000 is translated into a prefix which is /1

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