624  * issue a challenge
628 	struct rxkad_challenge challenge;  in rxkad_issue_challenge()  local
640 	challenge.version	= htonl(2);  in rxkad_issue_challenge()
641 	challenge.nonce		= htonl(conn->rxkad.nonce);  in rxkad_issue_challenge()
642 	challenge.min_level	= htonl(0);  in rxkad_issue_challenge()
643 	challenge.__padding	= 0;  in rxkad_issue_challenge()
664 	iov[1].iov_base	= &challenge;  in rxkad_issue_challenge()
665 	iov[1].iov_len	= sizeof(challenge);  in rxkad_issue_challenge()
786  * respond to a challenge packet
792 	struct rxkad_challenge challenge;  in rxkad_respond_to_challenge()  local
810 			  &challenge, sizeof(challenge)) < 0)  in rxkad_respond_to_challenge()
814 	version = ntohl(challenge.version);  in rxkad_respond_to_challenge()
815 	nonce = ntohl(challenge.nonce);  in rxkad_respond_to_challenge()
816 	min_level = ntohl(challenge.min_level);  in rxkad_respond_to_challenge()
1193 	 * ENOMEM.  We just want to send the challenge again.  Note that we  in rxkad_verify_response()