Hi, Recently I wanted to write an application which receives DSCP value from kernel through recvmsg's ancilliary control data feature, but I had to realize that despite I've used setsockopt with IP_RECVTOS parameter to achieve this, the buffer contained only SCTP level control data. When I looked into the code, I found that in net/sctp/socket.c::sctp_recvmsg() the necessary lines are commented out: if (sp->subscribe.sctp_data_io_event) sctp_ulpevent_read_sndrcvinfo(event, msg); #if 0 /* FIXME: we should be calling IP/IPv6 layers. */ if (sk->sk_protinfo.af_inet.cmsg_flags) ip_cmsg_recv(msg, skb); #endif I've tried to search about the reasons, but I couldn't find any answers about why is this left like this. Is there any special reason? At first look this code snippet looks working, but I suppose it's not an accident why it is not included in the official code. Thank you for your help, Kiss Zoltán -- 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
