netdev - Re: [PATCH net-next 0/3 V1] rtnetlink: enable IFLA_IF_NETNSID for RTM

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Date:   Wed, 24 Jan 2018 16:24:34 +0100
From:   Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:     Christian Brauner <christianvanbrauner@...il.com>,
        netdev@...r.kernel.org
Cc:     ebiederm@...ssion.com, davem@...emloft.net, dsahern@...il.com,
        fw@...len.de, daniel@...earbox.net, lucien.xin@...il.com,
        mschiffer@...verse-factory.net, jakub.kicinski@...ronome.com,
        vyasevich@...il.com, linux-kernel@...r.kernel.org,
        jbenc@...hat.com, w.bumiller@...xmox.com,
        Christian Brauner <christian.brauner@...ntu.com>
Subject: Re: [PATCH net-next 0/3 V1] rtnetlink: enable IFLA_IF_NETNSID for
 RTM_{DEL,SET}LINK

Hi,

Le 24/01/2018 à 15:26, Christian Brauner a écrit :
> Hi,
> 
> Based on the previous discussion this enables passing a IFLA_IF_NETNSID
> property along with RTM_SETLINK and RTM_DELLINK requests. The patch for
> RTM_NEWLINK will be sent out in a separate patch since there are more
> corner-cases to think about.
I wonder if it would be possible to do something in the netlink framework, like
NETLINK_LISTEN_ALL_NSID.
Having some ancillary data at the netlink socket level and a function like
nlsock_net() (instead of sock_net()) to get the corresponding netns.
With that, it would be possible, in a generci way, to support this feature for
all netlink family.


Regards,
Nicolas