From: Daniel Borkmann <dborkman@redhat.com>
To: linux-sctp@vger.kernel.org
Subject: Re: one-to-many question
Date: Thu, 15 Aug 2013 11:42:08 +0000 [thread overview]
Message-ID: <520CBE90.9020509@redhat.com> (raw)
In-Reply-To: <520CAC87.5020402@skyge.com>
On 08/15/2013 12:25 PM, xiong wei wrote:
> Hi, experts
>
> For one-to-many mode. Suppose I have a socket which contain several
> associations in it. that means there are several clients connect with
> server.
>
> If I use sendmsg(...) function to send msg from server, How does sctp
> identify which association will receive the data? Does all clients will
> receive the msg?
>
> And, Does sctp provide a way for server to send msg to all associations
> in one syscall ?
Neil Horman wrote:
The receiving association is specified in either the msg_name field of the
message header or the association id field of the sndrcv_info cmsg header in the
datagram. IIRC there is no was to send to all associations at once in a single
syscall, unless you want to marshall up all the data and pass it down via the
sendmmsg syscall, which I don't think lksctp-tools supports yet (though that
would be a nice feature).
Neil
next prev parent reply other threads:[~2013-08-15 11:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-15 10:25 one-to-many question xiong wei
2013-08-15 11:42 ` Daniel Borkmann [this message]
2013-08-15 11:42 ` Michael Tuexen
2013-08-15 15:13 ` Michael Tuexen
2013-08-15 17:28 ` Neil Horman
2013-08-15 18:50 ` Vlad Yasevich
2013-08-15 19:02 ` Michael Tuexen
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