netdev - Re: [PATCH] iptables: open eBPF programs in read only mode

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Message-ID: <CAHo-Oow8otp4ruAUpvGYjXN_f3dsbprg_DKOGG6HNhe_Z8X8Vg@mail.gmail.com>
Date:   Thu, 26 Mar 2020 07:16:16 -0700
From:   Maciej Żenczykowski <zenczykowski@...il.com>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     Florian Westphal <fw@...len.de>,
        Linux Network Development Mailing List 
        <netdev@...r.kernel.org>,
        Netfilter Development Mailinglist 
        <netfilter-devel@...r.kernel.org>, Chenbo Feng <fengc@...gle.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH] iptables: open eBPF programs in read only mode

I guess maybe we could wrap it in a

#ifdef BPF_F_RDONLY
attr.file_flags = BPF_F_RDONLY;
#endif

if we want to continue supporting building against pre-4.15 kernel headers...