Re: [PATCH 0/10] af_unix: add multicast and filtering features to AF_UNIX

[Luiz Augusto von Dentz]

Hi David,

On Fri, Mar 2, 2012 at 10:55 AM, David Miller <davem@xxxxxxxxxxxxx> wrote:
> From: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>
> Date: Fri, 2 Mar 2012 10:39:24 +0200
>
>> Like I said before there is many projects using AF_UNIX as IPC
>> transport, the documentation actually induces people to use for this
>> purpose, and many would benefit from being able to do multicast.
>
> You can't have it both ways.
>
> If it's useful for many applications, then many applications would
> benefit from a userland library that solved the problem using
> existing facilities such as IP multicast.
>
> If it's only useful for dbus that that absoltely means we should
> not add thousands of lines of code to the kernel specifically for
> that application.

Instead we should add many times that into dbus-daemon and do IP
multicast, am I missing something?

> So either way, kernel changes are not justified.

I respect your opinion, but I don't agree with it, you are pushing
userspace to a much more complex solution.

At this point it would probably better to just use shared memory and
forget about any security, eavesdrop all the way.

-- 
Luiz Augusto von Dentz
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