net/llc/af_llc.c

99 	u8 rc = LLC_PDU_LEN_U;
102 		rc = LLC_PDU_LEN_U;
110 		rc = LLC_PDU_LEN_U_XID;
112 		rc = LLC_PDU_LEN_I;
113 	return rc;
135 		int rc;
137 		rc = llc_ui_wait_for_busy_core(sk, timeout);
138 		if (rc) {
140 			return rc;
175 	int rc = -ESOCKTNOSUPPORT;
184 		rc = -ENOMEM;
187 			rc = 0;
191 	return rc;
282 	int rc = -EINVAL;
290 	rc = -ENODEV;
301 	rc = -EUSERS;
305 	rc = -EBUSY; /* some other network layer is using the sap */
320 	rc = 0;
323 	return rc;
347 	int rc = -EINVAL;
352 	rc = -EAFNOSUPPORT;
358 	rc = -ENODEV;
369 				rc = -EINVAL;
383 		rc = -EUSERS;
391 		rc = -EBUSY; /* some other network layer is using the sap */
406 		rc = -EADDRINUSE; /* mac + sap clash. */
425 	rc = 0;
431 	return rc;
448 	int rc = -ENOTCONN;
453 	rc = -EINVAL;
456 	rc = llc_send_disc(sk);
457 	if (!rc)
458 		rc = llc_ui_wait_for_disc(sk, sk->sk_rcvtimeo);
463 	return rc;
486 	int rc = -EINVAL;
491 	rc = -EAFNOSUPPORT;
496 	rc = -EALREADY;
502 		rc = llc_ui_autobind(sock, addr);
503 		if (rc)
511 	rc = llc_establish_connection(sk, llc->dev->dev_addr,
513 	if (rc) {
526 		rc = sock_intr_errno(timeo);
535 	rc = 0;
538 	return rc;
540 	rc = sock_error(sk) ? : -ECONNABORTED;
556 	int rc = -EINVAL;
561 	rc = -EOPNOTSUPP;
564 	rc = -EAGAIN;
567 	rc = 0;
578 	return rc;
584 	int rc = 0;
591 		rc = -ERESTARTSYS;
594 		rc = -EAGAIN;
597 		rc = 0;
600 	return rc;
623 	int rc;
627 		rc = 0;
634 		rc = -ERESTARTSYS;
637 		rc = -EAGAIN;
642 	return rc;
647 	int rc;
653 		rc = sock_error(sk);
654 		if (rc)
656 		rc = 0;
659 		rc = -EAGAIN;
662 		rc = sock_intr_errno(timeo);
665 		rc = 0;
669 	return rc;
703 	int rc = -EOPNOTSUPP;
710 	rc = -EINVAL;
716 		rc = llc_wait_data(sk, sk->sk_rcvtimeo);
717 		if (rc)
723 	rc = -EINVAL;
726 	rc = 0;
747 	return rc;
874 			int rc = skb_copy_datagram_msg(skb, offset, msg, used);
875 			if (rc) {
938 	int rc = -EINVAL, copied = 0, hdrlen, hh_len;
957 		rc = llc_ui_autobind(sock, addr);
958 		if (rc)
967 	rc = -EINVAL;
971 	skb = sock_alloc_send_skb(sk, hh_len + size, noblock, &rc);
984 	rc = memcpy_from_msg(skb_put(skb, copied), msg, copied);
985 	if (rc)
1005 	rc = -ENOPROTOOPT;
1008 	rc = llc_ui_send_data(sk, skb, noblock);
1012 	if (rc)
1014 			__func__, llc->laddr.lsap, llc->daddr.lsap, rc);
1016 	return rc ? : copied;
1033 	int rc = -EBADF;
1040 		rc = -ENOTCONN;
1048 		rc = -EINVAL;
1061 	rc = sizeof(sllc);
1064 	return rc;
1097 	int rc = -EINVAL;
1102 	rc = copy_from_sockptr(&opt, optval, sizeof(opt));
1103 	if (rc)
1105 	rc = -EINVAL;
1154 		rc = -ENOPROTOOPT;
1157 	rc = 0;
1160 	return rc;
1178 	int val = 0, len = 0, rc = -EINVAL;
1183 	rc = get_user(len, optlen);
1184 	if (rc)
1186 	rc = -EINVAL;
1210 		rc = -ENOPROTOOPT;
1213 	rc = 0;
1215 		rc = -EFAULT;
1218 	return rc;
1256 	int rc = proto_register(&llc_proto, 0);
1258 	if (rc != 0)
1264 	rc = llc_proc_init();
1265 	if (rc != 0) {
1269 	rc = llc_sysctl_init();
1270 	if (rc) {
1274 	rc = sock_register(&llc_ui_family_ops);
1275 	if (rc) {
1282 	return rc;