On Dec 5, 2011, at 2:59 PM, jyl_2006 wrote: > I download freebsd-rc2(Character-based) and use the new Operating system to > run the code you provide(sctp_client.c and give name of ComputerA to the > computer it uses).In another computer(named ComputerB) I run > freebsd-beta2(Graphical interface), I use the code(sctp_server.c) and I use > wireshark to see what happen. > > I do not run sctp_server(means no server to wait for accept) in ComputerA , > the program of sctp_client in ComputerB use sctp_connectx to init the > association, the return value of sctp_connectx is 0 , that means the > association is set up, but I do not run any server in computerA and the > wireshark also see the init of association is unsuccessful. No. If sctp_connectx() it means that initiating the setup was successful, basically the sending on the INIT chunk. It is a non-blocking operation. So I guess this is what happens: 1. You call sctp_connectx(). 2. An INIT is sent. 3. sctp_connectx() returns with 0. The associd is valid. 4. An ABORT comes back. 5. Now the association is closed.
If you want a blocking setup, use a one-to-one style socket and a connect() call. If you want to figure out whether the association setup is successful or not, you have to subscribe to the corresponding events. You will either get a notification indicating that the setup is successful or not. I don't think this behavior has changed between RC2 and B2. Best regards Michael > > I am really confused about this problem. > > Thanks. > > -- > View this message in context: > http://freebsd.1045724.n5.nabble.com/the-return-value-of-sctp-connectx-do-not-match-any-error-tp5041952p5048925.html > Sent from the freebsd-net mailing list archive at Nabble.com. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
