Re: [PATCH net-next 0/5] rtnetlink: add IFA_IF_NETNSID for RTM_GETADDR

[Nicolas Dichtel <nicolas.dichtel@6wind.com>]

Le 30/08/2018 à 16:45, Christian Brauner a écrit :
[snip]
> Introducing the IFA_IF_NETNSID property will not make the netlink
> interface less modular. It is a clean, RTM_*ADDR-request specific
> property using network namespace identifiers which we discussed in prior
> patches are the way to go forward.
> 
> You can already get interfaces via GETLINK from another network
> namespaces than the one you reside in (Which we enabled just a few
> months back.) but you can't do the same for GETADDR. Those two are
> almost always used together. When you want to get the links you usually
> also want to get the addresses associated with it right after.
> In a prior discussion we agreed that network namespace identifiers are
> the way to go forward but that any other propery, i.e. PIDs and fds
> should never be ported into other parts of the codebase and that is
> indeed something I agree with.
Yes, I agree with this and I think this series go to the right direction.

Maybe I would choose a more generic name for the attribute, something that can
be used in other netlink families (xfrm, netfilter, ...) also.
What about IFA_TARGET_NSID?