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 -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
