linux-kernel - Re: [PATCH net-next v2 0/4] ipmr/ip6mr: add Netlink notifications on cache reports

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Message-Id: <20170620.152244.1055779320531168153.davem@davemloft.net>
Date:   Tue, 20 Jun 2017 15:22:44 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     julien@...sta.com
Cc:     nikolay@...ulusnetworks.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, sharpd@...ulusnetworks.com,
        nicolas.dichtel@...nd.com
Subject: Re: [PATCH net-next v2 0/4] ipmr/ip6mr: add Netlink notifications
 on cache reports

From: Julien Gomes <julien@...sta.com>
Date: Mon, 19 Jun 2017 13:44:13 -0700

> Currently, all ipmr/ip6mr cache reports are sent through the
> mroute/mroute6 socket only.
> This forces the use of a single socket for mroute programming, cache
> reports and, regarding ipmr, IGMP messages without Router Alert option
> reception.
> 
> The present patches are aiming to send Netlink notifications in addition
> to the existing igmpmsg/mrt6msg to give user programs a way to handle
> cache reports in parallel with multiple sockets other than the
> mroute/mroute6 socket.
> 
> Changes in v2:
> - Changed attributes naming from {IPMRA,IP6MRA}_CACHEREPORTA_* to
>   {IPMRA,IP6MRA}_CREPORT_*
> - Improved packet data copy to handle non-linear packets in
>   ipmr/ip6mr cache report Netlink notification creation
> - Added two rtnetlink groups with restricted-binding
> - Changed cache report notified groups from RTNL_{IPV4,IPV6}_MROUTE to
>   the new restricted groups in ipmr/ip6mr

Please address Nikolay's feedback about interface number limits etc.

Thanks.