From: Dan Smith <danms@us.ibm.com>
To: Oren Laadan <orenl@librato.com>
Cc: containers@lists.osdl.org, Alexey Dobriyan <adobriyan@gmail.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH 5/5] c/r: Add AF_UNIX support (v6)
Date: Thu, 30 Jul 2009 08:49:57 -0700 [thread overview]
Message-ID: <878wi6yxui.fsf@caffeine.danplanet.com> (raw)
In-Reply-To: <4A6F6B19.9010508@librato.com> (Oren Laadan's message of "Tue\, 28 Jul 2009 17\:18\:17 -0400")
OL> Hmm.. then what happens when you have a circular dependency ? For
OL> example, three dgram sockets, A, B and C where: A->B, B->C and
OL> C->A ('->' means connected).
So, I've been cooking up changes to the patch and a test for this
case. However, it seems like it's not valid, unless I'm missing
something. The man page for connect() says:
If the socket sockfd is of type SOCK_DGRAM then serv_addr is the
address to which datagrams are sent by default, and the only address
from which datagrams are received.
So, even though you can connect() a DGRAM socket and then sendto()
datagrams to a different location, it doesn't appear that the
relationship between A and B is really valid, at least the connection
between A and B is not functional. In fact, in my testing, if you try
to connect() C back to A, you get "Operation not permitted" because A
is already connected elsewhere.
Thoughts?
--
Dan Smith
IBM Linux Technology Center
email: danms@us.ibm.com
next prev parent reply other threads:[~2009-07-30 15:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1248295301-30930-1-git-send-email-danms@us.ibm.com>
2009-07-22 20:41 ` [PATCH 5/5] c/r: Add AF_UNIX support (v6) Dan Smith
[not found] ` <1248295301-30930-6-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-07-28 16:54 ` Oren Laadan
2009-07-28 20:34 ` Dan Smith
2009-07-28 21:18 ` Oren Laadan
2009-07-29 13:36 ` Serge E. Hallyn
2009-07-29 14:49 ` Dan Smith
2009-07-29 14:59 ` Serge E. Hallyn
2009-07-29 15:03 ` Dan Smith
2009-07-29 15:34 ` Oren Laadan
2009-07-29 18:37 ` Dan Smith
2009-07-30 15:49 ` Dan Smith [this message]
2009-07-30 22:10 ` John Dykstra
2009-07-30 22:12 ` John Dykstra
2009-07-30 22:14 ` Dan Smith
2009-08-04 8:27 ` Oren Laadan
2009-08-04 15:16 ` Dan Smith
2009-08-04 17:05 ` Oren Laadan
2009-08-04 17:13 ` Dan Smith
2009-07-29 1:56 ` Serge E. Hallyn
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