net/bluetooth/l2cap_sock.c

88 	int len, err = 0;
116 		err = -EBADFD;
124 			err = l2cap_validate_bredr_psm(psm);
126 			err = l2cap_validate_le_psm(psm);
128 		if (err)
136 		err = l2cap_add_scid(chan, __le16_to_cpu(la.l2_cid));
138 		err = l2cap_add_psm(chan, &la.l2_bdaddr, la.l2_psm);
140 	if (err < 0)
178 	return err;
187 	int len, err = 0;
256 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
259 	if (err)
260 		return err;
264 	err = bt_sock_wait_state(sk, BT_CONNECTED,
269 	return err;
276 	int err = 0;
283 		err = -EBADFD;
288 		err = -EINVAL;
298 			err = -EOPNOTSUPP;
308 		err = -EOPNOTSUPP;
326 	return err;
335 	int err = 0;
347 			err = -EBADFD;
356 			err = -EAGAIN;
361 			err = sock_intr_errno(timeo);
373 	if (err)
382 	return err;
442 	int err = 0;
461 			err = -EINVAL;
472 			err = -EINVAL;
476 		if (err < 0)
492 			err = -EFAULT;
524 			err = -EFAULT;
532 			err = -ENOTCONN;
542 			err = -EFAULT;
547 		err = -ENOPROTOOPT;
552 	return err;
563 	int len, mode, err = 0;
583 			err = -EINVAL;
599 			err = -EFAULT;
605 			err = -EINVAL;
611 			err = -EFAULT;
618 			err = -EFAULT;
625 			err = -EINVAL;
633 			err = -EFAULT;
639 			err = -EFAULT;
644 			err = -EINVAL;
649 			err = -ENOTCONN;
654 			err = -EFAULT;
659 			err = -EINVAL;
664 			err = -EFAULT;
669 			err = -ENOTCONN;
676 			err = -EFAULT;
681 			err = -ENOPROTOOPT;
686 			err = -EINVAL;
692 			err = mode;
697 			err = -EFAULT;
701 		err = -ENOPROTOOPT;
706 	return err;
731 	int err = 0;
741 			err = -EINVAL;
746 			err = -EINVAL;
758 		err = bt_copy_from_sockptr(&opts, sizeof(opts), optval, optlen);
759 		if (err)
763 			err = -EINVAL;
768 			err = -EINVAL;
783 			err = -EINVAL;
787 		if (err < 0)
803 		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
804 		if (err)
808 			err = -EINVAL;
831 		err = -ENOPROTOOPT;
836 	return err;
886 	int err = 0;
906 			err = -EINVAL;
912 		err = bt_copy_from_sockptr(&sec, sizeof(sec), optval, optlen);
913 		if (err)
918 			err = -EINVAL;
932 				err = -EINVAL;
949 			err = -EINVAL;
955 			err = -EINVAL;
959 		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
960 		if (err)
973 		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
974 		if (err)
978 			err = -EINVAL;
987 				err = -EINVAL;
1001 			err = -EINVAL;
1007 		err = bt_copy_from_sockptr(&pwr, sizeof(pwr), optval, optlen);
1008 		if (err)
1018 		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
1019 		if (err)
1022 		err = -EOPNOTSUPP;
1027 			err = -EINVAL;
1034 		err = -EPERM;
1039 			err = -EINVAL;
1045 			err = -EISCONN;
1049 		err = bt_copy_from_sockptr(&mtu, sizeof(mtu), optval, optlen);
1050 		if (err)
1055 			err = l2cap_chan_reconfigure(chan, mtu);
1063 			err = -ENOPROTOOPT;
1070 			err = -EINVAL;
1075 			err = -EINVAL;
1079 		err = bt_copy_from_sockptr(&mode, sizeof(mode), optval, optlen);
1080 		if (err)
1085 		err = l2cap_set_mode(chan, mode);
1086 		if (err)
1094 		err = -ENOPROTOOPT;
1099 	return err;
1107 	int err;
1111 	err = sock_error(sk);
1112 	if (err)
1113 		return err;
1122 	err = bt_sock_wait_ready(sk, msg->msg_flags);
1124 	if (err)
1125 		return err;
1128 	err = l2cap_chan_send(chan, msg, len);
1131 	return err;
1167 	int err;
1187 		err = 0;
1194 		err = bt_sock_stream_recvmsg(sock, msg, len, flags);
1196 		err = bt_sock_recvmsg(sock, msg, len, flags);
1201 		return err;
1229 	return err;
1252 	int err = 0;
1268 			err = sock_intr_errno(timeo);
1277 		err = sock_error(sk);
1278 		if (err)
1282 			err = -ENOLINK;
1291 	return err;
1299 	int err = 0;
1332 		err = __l2cap_wait_ack(sk, chan);
1378 		err = bt_sock_wait_state(sk, BT_CLOSED,
1386 	if (!err && sk->sk_err)
1387 		err = -sk->sk_err;
1391 	BT_DBG("Sock shutdown complete err: %d", err);
1393 	return err;
1399 	int err;
1410 	err = l2cap_sock_shutdown(sock, SHUT_RDWR);
1422 	return err;
1486 	int err;
1491 		err = -ENOMEM;
1502 		err = sk_filter(sk, skb);
1503 		if (err)
1507 	err = __sock_queue_rcv_skb(sk, skb);
1520 	if (err < 0 &&
1527 			err = -ENOMEM;
1533 		err = 0;
1539 	return err;
1552 static void l2cap_sock_teardown_cb(struct l2cap_chan *chan, int err)
1588 		sk->sk_err = err;
1607 				       int err)
1613 	if (err)
1614 		sk->sk_err = err;
1623 	int err;
1626 	skb = bt_skb_send_alloc(sk, hdr_len + len, nb, &err);
1630 		return ERR_PTR(err);
1947 	int err;
1951 	err = proto_register(&l2cap_proto, 0);
1952 	if (err < 0)
1953 		return err;
1955 	err = bt_sock_register(BTPROTO_L2CAP, &l2cap_sock_family_ops);
1956 	if (err < 0) {
1961 	err = bt_procfs_init(&init_net, "l2cap", &l2cap_sk_list,
1963 	if (err < 0) {
1975 	return err;