Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 9 Mar 2020 03:01:36 -0700
From:      Doug Hardie <bc979@lafn.org>
To:        freebsd-net@freebsd.org
Subject:   SCTP sendmsgx
Message-ID:  <1C234055-9CDD-4A72-A027-1BD4F8A2FC71@mail.sermon-archive.info>

next in thread | raw e-mail | index | archive | help
> I am trying to get sctp_sendmsgx to work and not having a lot of =
success.  I have not been able to find any examples on the web of using =
it.  I have a client using sctp_sendmsg working fine.  I need to make =
use of the multihoming feature which requires sctp_sendmsgx.    I =
changed the call to sctp_sendmsgx, and changed the address count to 2.  =
However, all I get is an EINVAL response.  Looking through the code =
there are at least 2 different possible causes, but I can't distinguish =
between them. I do have two address structures in the address field.  =
Are there any examples of how to build a client with sctp_sendmsgx?

I am now making some progress.  If you are using the sctp_sendmsg =
function the sa_len or sin_len field is not used.  However, sctp_sendx =
does use it.  Leaving it at zero causes the problem.  sendx now sends a =
connection init to the remote host.  There is no server running there =
yet.  It hangs for quite some time and doesn't try the multihome =
address.  I seem to recall reading something about that so will =
investigate that tomorrow.=20

-- Doug




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1C234055-9CDD-4A72-A027-1BD4F8A2FC71>