netdev - Re: [PATCH bpf-next 00/11] bpfilter

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Message-ID: <20210520075323.ehagaokfbazlhhfj@amnesia>
Date:   Thu, 20 May 2021 11:53:23 +0400
From:   Dmitrii Banshchikov <me@...que.spb.ru>
To:     Song Liu <songliubraving@...com>
Cc:     "open list:BPF (Safe dynamic programs and tools)" 
        <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "daniel@...earbox.net" <daniel@...earbox.net>,
        "andrii@...nel.org" <andrii@...nel.org>, Martin Lau <kafai@...com>,
        Yonghong Song <yhs@...com>,
        "john.fastabend@...il.com" <john.fastabend@...il.com>,
        "kpsingh@...nel.org" <kpsingh@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Andrey Ignatov <rdna@...com>
Subject: Re: [PATCH bpf-next 00/11] bpfilter

On Thu, May 20, 2021 at 04:54:45AM +0000, Song Liu wrote:
> 
> 
> > On May 17, 2021, at 3:52 PM, Dmitrii Banshchikov <me@...que.spb.ru> wrote:
> > 
> > The patchset is based on the patches from David S. Miller [1] and Daniel
> > Borkmann [2].
> > 
> > The main goal of the patchset is to prepare bpfilter for iptables'
> > configuration blob parsing and code generation.
> > 
> > The patchset introduces data structures and code for matches, targets, rules
> > and tables.
> > 
> > It seems inconvenient to continue to use the same blob internally in bpfilter
> > in parts other than the blob parsing. That is why a superstructure with native
> > types is introduced. It provides a more convenient way to iterate over the blob
> > and limit the crazy structs widespread in the bpfilter code.
> > 
> 
> [...]
> 
> > 
> > 
> > 1. https://lore.kernel.org/patchwork/patch/902785/
> 
> [1] used bpfilter_ prefix on struct definitions, like "struct bpfilter_target"
> I think we should do the same in this version. (Or were there discussions on
> removing the prefix?). 

There were no discussions about it.
As those structs are private to bpfilter I assumed that it is
safe to save some characters.
I will add the prefix to all internal structs in the next
iteration.


> 
> Thanks,
> Song
> 
> [...]
> 

-- 

Dmitrii Banshchikov