net/bluetooth/l2cap_core.c

58 static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);
188 	int err;
193 		err = -EADDRINUSE;
200 		err = 0;
214 		err = -EINVAL;
220 				err = 0;
227 	return err;
273 						int state, int err)
276 	chan->ops->state_change(chan, chan->state, err);
279 static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
281 	chan->ops->state_change(chan, chan->state, err);
649 void l2cap_chan_del(struct l2cap_chan *chan, int err)
655 	BT_DBG("chan %p, conn %p, err %d, state %s", chan, conn, err,
658 	chan->ops->teardown(chan, err);
1471 static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err)
1490 	l2cap_state_change_and_error(chan, BT_DISCONN, err);
1644 static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
1654 			l2cap_chan_set_err(chan, err);
1750 static void l2cap_conn_del(struct hci_conn *hcon, int err)
1758 	BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
1785 		l2cap_chan_del(chan, err);
2246 	int err, count, hlen = L2CAP_HDR_SIZE + L2CAP_PSMLEN_SIZE;
2265 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
2266 	if (unlikely(err < 0)) {
2268 		return ERR_PTR(err);
2278 	int err, count;
2295 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
2296 	if (unlikely(err < 0)) {
2298 		return ERR_PTR(err);
2309 	int err, count, hlen;
2346 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
2347 	if (unlikely(err < 0)) {
2349 		return ERR_PTR(err);
2429 	int err, count, hlen;
2457 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
2458 	if (unlikely(err < 0)) {
2460 		return ERR_PTR(err);
2521 	int err;
2546 		err = l2cap_segment_le_sdu(chan, &seg_queue, msg, len);
2550 			err = -ENOTCONN;
2553 		if (err)
2554 			return err;
2563 		err = len;
2578 		err = len;
2585 			err = -EMSGSIZE;
2595 		err = l2cap_segment_sdu(chan, &seg_queue, msg, len);
2597 		if (err)
2605 		err = len;
2615 		err = -EBADFD;
2618 	return err;
3126 	int err;
3149 	err = l2cap_seq_list_init(&chan->srej_list, chan->tx_win);
3150 	if (err < 0)
3151 		return err;
3153 	err = l2cap_seq_list_init(&chan->retrans_list, chan->remote_tx_win);
3154 	if (err < 0)
3157 	return err;
4092 	int err;
4114 			err = -EBADSLT;
4120 			err = -EBADSLT;
4127 		err = -EBADSLT;
4131 	err = 0;
4138 			err = -EBADSLT;
4170 	return err;
4220 	int len, err = 0;
4287 			err = l2cap_ertm_init(chan);
4289 		if (err < 0)
4290 			l2cap_send_disconn_req(chan, -err);
4318 	return err;
4329 	int err = 0;
4414 			err = l2cap_ertm_init(chan);
4416 		if (err < 0)
4417 			l2cap_send_disconn_req(chan, -err);
4425 	return err;
4631 	int err;
4652 		err = -EINVAL;
4654 		err = hci_check_conn_params(min, max, latency, to_multiplier);
4657 	if (err)
4665 	if (!err) {
4687 	int err, sec_level;
4710 		err = -EBADSLT;
4714 	err = 0;
4721 			err = -EBADSLT;
4763 	return err;
4770 	int err = 0;
4778 		err = l2cap_connect_req(conn, cmd, cmd_len, data);
4786 		err = l2cap_config_req(conn, cmd, cmd_len, data);
4794 		err = l2cap_disconnect_req(conn, cmd, cmd_len, data);
4809 		err = l2cap_information_req(conn, cmd, cmd_len, data);
4818 		err = -EINVAL;
4822 	return err;
5172 	int err = 0, sec_level;
5275 	return err;
5411 	int err = 0;
5419 		err = l2cap_conn_param_update_req(conn, cmd, cmd_len, data);
5430 		err = l2cap_le_connect_req(conn, cmd, cmd_len, data);
5434 		err = l2cap_le_credits(conn, cmd, cmd_len, data);
5438 		err = l2cap_ecred_conn_req(conn, cmd, cmd_len, data);
5442 		err = l2cap_ecred_conn_rsp(conn, cmd, cmd_len, data);
5446 		err = l2cap_ecred_reconf_req(conn, cmd, cmd_len, data);
5450 		err = l2cap_ecred_reconf_rsp(conn, cmd, cmd_len, data);
5454 		err = l2cap_disconnect_req(conn, cmd, cmd_len, data);
5463 		err = -EINVAL;
5467 	return err;
5476 	int err;
5496 	err = l2cap_le_sig_cmd(conn, cmd, len, skb->data);
5497 	if (err) {
5500 		BT_ERR("Wrong link type (%d)", err);
5524 	int err;
5549 		err = l2cap_bredr_sig_cmd(conn, cmd, len, skb->data);
5550 		if (err) {
5551 			BT_ERR("Wrong link type (%d)", err);
5644 	int err = -EINVAL;
5651 		err = chan->ops->recv(chan, skb);
5665 			err = -EMSGSIZE;
5676 		err = 0;
5690 		err = 0;
5704 		err = chan->ops->recv(chan, chan->sdu);
5706 		if (!err) {
5715 	if (err) {
5723 	return err;
5745 	int err = 0;
5764 		err = l2cap_reassemble_sdu(chan, skb, &bt_cb(skb)->l2cap);
5765 		if (err)
5774 	return err;
5963 	int err = 0;
6004 			err = l2cap_reassemble_sdu(chan, skb, control);
6005 			if (err)
6107 	return err;
6114 	int err = 0;
6143 			err = l2cap_rx_queued_iframes(chan);
6144 			if (err)
6250 	return err;
6267 	int err;
6288 	err = l2cap_finish_move(chan);
6289 	if (err)
6290 		return err;
6305 	int err;
6327 	err = l2cap_resegment(chan);
6329 	if (!err)
6330 		err = l2cap_rx_state_recv(chan, control, skb, event);
6332 	return err;
6347 	int err = 0;
6355 			err = l2cap_rx_state_recv(chan, control, skb, event);
6358 			err = l2cap_rx_state_srej_sent(chan, control, skb,
6362 			err = l2cap_rx_state_wait_p(chan, control, skb, event);
6365 			err = l2cap_rx_state_wait_f(chan, control, skb, event);
6378 	return err;
6468 		int err;
6482 			err = l2cap_rx(chan, control, skb, event);
6484 			err = l2cap_stream_rx(chan, control, skb);
6487 		if (err)
6564 	int err;
6569 	err = chan->ops->recv(chan, skb);
6571 	if (err < 0 && chan->rx_avail != -1) {
6574 		return err;
6580 	return err;
6585 	int err;
6608 	err = 0;
6621 			err = -EMSGSIZE;
6627 			err = -EINVAL;
6656 		err = -EINVAL;
6664 		err = l2cap_ecred_recv(chan, chan->sdu);
6665 		if (!err) {
6673 	if (err) {
6955 	int err;
6968 		err = -EINVAL;
6973 		err = -EINVAL;
6978 		err = -EINVAL;
6989 			err = -EOPNOTSUPP;
6999 		err = -EOPNOTSUPP;
7008 		err = 0;
7013 		err = -EISCONN;
7022 		err = -EBADFD;
7057 		err = PTR_ERR(hcon);
7064 		err = -ENOMEM;
7080 			err = -EPROTO;
7090 		err = -EBUSY;
7122 	err = 0;
7130 	return err;
7615 	int err;
7617 	err = l2cap_init_sockets();
7618 	if (err < 0)
7619 		return err;