netdev - Re: [PATCH bpf-next 5/8] bpftool: Implement link show support for meta

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

Message-ID: <e8b49f3c-e950-4b8e-8169-daa6ffeb596c@isovalent.com>
Date: Tue, 26 Sep 2023 12:19:09 +0100
From: Quentin Monnet <quentin@...valent.com>
To: Daniel Borkmann <daniel@...earbox.net>, bpf@...r.kernel.org
Cc: netdev@...r.kernel.org, martin.lau@...nel.org, razor@...ckwall.org,
 ast@...nel.org, andrii@...nel.org, john.fastabend@...il.com
Subject: Re: [PATCH bpf-next 5/8] bpftool: Implement link show support for
 meta

On 26/09/2023 06:59, Daniel Borkmann wrote:
> Add support to dump meta link information to bpftool in similar way
> as we have for XDP. The meta link info only exposes the ifindex.
> 
> Below shows an example link dump output, and a cgroup link is included
> for comparison, too:
> 
>   # bpftool link
>   [...]
>   10: cgroup  prog 2466
>         cgroup_id 1  attach_type cgroup_inet6_post_bind
>   [...]
>   8: meta  prog 35
>         ifindex meta1(18)
>   [...]
> 
> Equivalent json output:
> 
>   # bpftool link --json
>   [...]
>   {
>     "id": 10,
>     "type": "cgroup",
>     "prog_id": 2466,
>     "cgroup_id": 1,
>     "attach_type": "cgroup_inet6_post_bind"
>   },
>   [...]
>   {
>     "id": 12,
>     "type": "meta",
>     "prog_id": 61,
>     "devname": "meta1",
>     "ifindex": 21
>   }
>   [...]
> 
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>

Reviewed-by: Quentin Monnet <quentin@...valent.com>