netdev - Re: [PATCH iproute2-next v5] iplink: bridge: Add support for bridge FDB learning limits

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: <87il730wkx.fsf@nvidia.com>
Date: Thu, 19 Oct 2023 11:50:21 +0200
From: Petr Machata <petrm@...dia.com>
To: Johannes Nixdorf <jnixdorf-oss@....de>
CC: David Ahern <dsahern@...il.com>, Roopa Prabhu <roopa@...dia.com>, "Nikolay
 Aleksandrov" <razor@...ckwall.org>, Ido Schimmel <idosch@...dia.com>, "Petr
 Machata" <petrm@...dia.com>, <bridge@...ts.linux-foundation.org>,
	<netdev@...r.kernel.org>
Subject: Re: [PATCH iproute2-next v5] iplink: bridge: Add support for bridge
 FDB learning limits


Johannes Nixdorf <jnixdorf-oss@....de> writes:

> Support setting the FDB limit through ip link. The arguments is:
>  - fdb_max_learned: A 32-bit unsigned integer specifying the maximum
>                     number of learned FDB entries, with 0 disabling
>                     the limit.
>
> Also support reading back the current number of learned FDB entries in
> the bridge by this count. The returned value's name is:
>  - fdb_n_learned: A 32-bit unsigned integer specifying the current number
>                   of learned FDB entries.
>
> Example:
>
>  # ip -d -j -p link show br0
> [ {
> ...
>         "linkinfo": {
>             "info_kind": "bridge",
>             "info_data": {
> ...
>                 "fdb_n_learned": 2,
>                 "fdb_max_learned": 0,
> ...
>             }
>         },
> ...
>     } ]
>  # ip link set br0 type bridge fdb_max_learned 1024
>  # ip -d -j -p link show br0
> [ {
> ...
>         "linkinfo": {
>             "info_kind": "bridge",
>             "info_data": {
> ...
>                 "fdb_n_learned": 2,
>                 "fdb_max_learned": 1024,
> ...
>             }
>         },
> ...
>     } ]
>
> Signed-off-by: Johannes Nixdorf <jnixdorf-oss@....de>

Reviewed-by: Petr Machata <petrm@...dia.com>