linux-kernel - RE: [PATCH bpf-next 3/6] bpf: sockmap: call sock_map_update

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <5f3d8b93e7aa9_2c9b2adeefb585bcd1@john-XPS-13-9370.notmuch>
Date:   Wed, 19 Aug 2020 13:29:07 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     Lorenz Bauer <lmb@...udflare.com>, jakub@...udflare.com,
        john.fastabend@...il.com, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Lorenz Bauer <lmb@...udflare.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     kernel-team@...udflare.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: RE: [PATCH bpf-next 3/6] bpf: sockmap: call sock_map_update_elem
 directly

Lorenz Bauer wrote:
> Don't go via map->ops to call sock_map_update_elem, since we know
> what function to call in bpf_map_update_value. Since
> check_map_func_compatibility doesn't allow calling
> BPF_FUNC_map_update_elem from BPF context, we can remove
> ops->map_update_elem and rename the function to
> sock_map_update_elem_sys.
> 
> Signed-off-by: Lorenz Bauer <lmb@...udflare.com>
> ---

Acked-by: John Fastabend <john.fastabend@...il.com>