netdev - Re: [patch net-next v3 06/12] net: mroute: Check if rule is a default rule

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]

Date:   Wed, 27 Sep 2017 17:38:28 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, yotamg@...lanox.com, idosch@...lanox.com,
        mlxsw@...lanox.com, andrew@...n.ch, linyunsheng@...wei.com
Subject: Re: [patch net-next v3 06/12] net: mroute: Check if rule is a default
 rule

On 27/09/17 09:23, Jiri Pirko wrote:
> From: Yotam Gigi <yotamg@...lanox.com>
> 
> When the ipmr starts, it adds one default FIB rule that matches all packets
> and sends them to the DEFAULT (multicast) FIB table. A more complex rule
> can be added by user to specify that for a specific interface, a packet
> should be look up at either an arbitrary table or according to the l3mdev
> of the interface.
> 
> For drivers willing to offload the ipmr logic into a hardware but don't
> want to offload all the FIB rules functionality, provide a function that
> can indicate whether the FIB rule is the default multicast rule, thus only
> one routing table is needed.
> 
> This way, a driver can register to the FIB notification chain, get
> notifications about FIB rules added and trigger some kind of an internal
> abort mechanism when a non default rule is added by the user.
> 
> Signed-off-by: Yotam Gigi <yotamg@...lanox.com>
> Reviewed-by: Ido Schimmel <idosch@...lanox.com>
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>
> ---
> v2->v3:
>  - Use the already existing ifdef CONFIG_IP_MROUTE_MULTIPLE_TABLES
> v1->v2:
>  - Update the lastuse MFC entry field too, in addition to packets an bytes.
> ---
>  include/linux/mroute.h |  7 +++++++
>  net/ipv4/ipmr.c        | 12 ++++++++++++
>  2 files changed, 19 insertions(+)
> 

Reviewed-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>