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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: David Miller <davem@davemloft.net>,
	shemminger@vyatta.com, ying.xue@windriver.com,
	luiz.dentz@gmail.com, rodrigo.moya@collabora.co.uk,
	javier@collabora.co.uk, lennart@poettering.net,
	kay.sievers@vrfy.org, alban.crequy@collabora.co.uk,
	bart.cerneels@collabora.co.uk, sjoerd.simons@collabora.co.uk,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/10] af_unix: add multicast and filtering features to AF_UNIX
Date: Fri, 02 Mar 2012 05:13:51 -0800	[thread overview]
Message-ID: <1330694031.2469.15.camel@edumazet-laptop> (raw)
In-Reply-To: <4F509274.9060302@collabora.co.uk>

Le vendredi 02 mars 2012 à 10:27 +0100, Javier Martinez Canillas a
écrit :

> We are the most interested in using a facility already found in the
> kernel, we will try ZeroMQ as Stephen suggested and TIPC but really
> didn't find an IPC mechanism that fits our needs. The most important
> issue right now is the fd passing for D-bus application doing
> out-of-band communication.

Why on earth the needed D-Bus IPC should use a single kernel mechanism ?

I mean, of course AF_INET cannot pass fd around and never will.
Of course AF_UNIX cannot use multicast and never will.
Of course shared memory wont pass fds around and never will.
... Add other impossible combinations as you want.

There are reasons fd passing is hard to implement. I find stuffing this
functionality in AF_UNIX was a bad design choice from the very
beginning.

Instead of pushing extra complexity to a single kernel component, why
not trying to use a combination of existing, well designed and supported
ones ?




  parent reply	other threads:[~2012-03-02 13:13 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-20 15:57 [PATCH 0/10] af_unix: add multicast and filtering features to AF_UNIX Javier Martinez Canillas
2012-02-20 15:57 ` [PATCH 01/10] af_unix: Documentation on multicast unix sockets Javier Martinez Canillas
2012-02-20 15:57 ` [PATCH 02/10] af_unix: Add constant for unix socket options level Javier Martinez Canillas
2012-02-20 15:57 ` [PATCH 03/10] af_unix: add setsockopt on unix sockets Javier Martinez Canillas
2012-02-20 16:20   ` David Miller
2012-02-20 19:13 ` [PATCH 0/10] af_unix: add multicast and filtering features to AF_UNIX Colin Walters
2012-02-21  8:07   ` Rodrigo Moya
2012-02-24 20:36 ` David Miller
2012-02-27 14:00   ` Javier Martinez Canillas
2012-02-27 19:05     ` David Miller
2012-02-28 10:47       ` Rodrigo Moya
2012-02-28 14:28         ` David Lamparter
2012-02-28 15:24           ` Javier Martinez Canillas
2012-02-28 16:33             ` Javier Martinez Canillas
2012-02-28 19:05         ` David Miller
2012-03-01 11:57           ` Javier Martinez Canillas
2012-03-01 12:26             ` Eric Dumazet
2012-03-01 12:33               ` David Laight
2012-03-01 12:50                 ` Rodrigo Moya
2012-03-01 12:59                   ` Eric Dumazet
2012-03-01 13:56                     ` Javier Martinez Canillas
2012-03-01 16:00                       ` Eric Dumazet
2012-03-01 16:02                       ` Luiz Augusto von Dentz
2012-03-01 17:06                         ` Javier Martinez Canillas
2012-03-01 17:59                         ` Eric Dumazet
2012-03-01 18:10                           ` Alan Cox
2012-03-01 19:02                           ` Javier Martinez Canillas
2012-03-01 19:29                             ` Javier Martinez Canillas
2012-03-01 18:53                         ` David Dillow
2012-03-01 20:55                       ` David Miller
2012-03-02  4:40                         ` Stephen Hemminger
2012-03-01 20:44               ` David Miller
2012-03-01 22:01                 ` Luiz Augusto von Dentz
2012-03-01 22:08                   ` David Miller
2012-03-02  8:39                     ` Luiz Augusto von Dentz
2012-03-02  8:55                       ` David Miller
2012-03-02  9:27                         ` Javier Martinez Canillas
2012-03-02  9:39                           ` David Miller
2012-03-02 13:13                           ` Eric Dumazet [this message]
2012-03-02 16:34                             ` Javier Martinez Canillas
2012-03-02 17:08                               ` Alan Cox
2012-03-05  8:38                                 ` Luiz Augusto von Dentz
2012-03-05 14:05                                   ` Martin Mares
2012-03-05 15:11                                     ` Javier Martinez Canillas
2012-03-05 15:49                                       ` Martin Mares
2012-03-05 18:55                           ` David Lamparter
2012-03-02 10:08                         ` Luiz Augusto von Dentz
2012-03-03 12:20                           ` Martin Mares
2012-03-02 22:19                         ` david
2012-03-01 12:57             ` Luiz Augusto von Dentz
2012-03-01 20:42             ` David Miller
2012-03-01 14:25 Erik Hugne
2012-03-01 17:18 ` Rodrigo Moya
2012-03-02  7:01   ` Ying Xue
     [not found]   ` <4F506ABC.8050807@windriver.com>
2012-03-05 15:49     ` Erik Hugne

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