> On 9. Mar 2020, at 11:01, Doug Hardie <bc...@lafn.org> wrote: > >> 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 Yepp, filling out the sa_len field is important. > 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. What do you see on the wire? I would expect INIT chunks to be sent to the two addresses you provided.
Please note that sctp_sendx() is deprecated (like sctp_sendmsg()). Please consider using sctp_sendv(). See https://tools.ietf.org/html/rfc6458#section-9.12 Best regards Michael > > -- Doug > > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
