bluetooth.h

  1/*
  2   BlueZ - Bluetooth protocol stack for Linux
  3   Copyright (C) 2000-2001 Qualcomm Incorporated
  4   Copyright 2023 NXP
  5
  6   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
  7
  8   This program is free software; you can redistribute it and/or modify
  9   it under the terms of the GNU General Public License version 2 as
 10   published by the Free Software Foundation;
 11
 12   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 13   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 14   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
 15   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
 16   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
 17   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 18   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 19   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 20
 21   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
 22   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
 23   SOFTWARE IS DISCLAIMED.
 24*/
 25
 26#ifndef __BLUETOOTH_H
 27#define __BLUETOOTH_H
 28
 29#include <linux/poll.h>
 30#include <net/sock.h>
 31#include <linux/seq_file.h>
 32#include <linux/ethtool.h>
 33
 34#define BT_SUBSYS_VERSION	2
 35#define BT_SUBSYS_REVISION	22
 36
 37#ifndef AF_BLUETOOTH
 38#define AF_BLUETOOTH	31
 39#define PF_BLUETOOTH	AF_BLUETOOTH
 40#endif
 41
 42/* Bluetooth versions */
 43#define BLUETOOTH_VER_1_1	1
 44#define BLUETOOTH_VER_1_2	2
 45#define BLUETOOTH_VER_2_0	3
 46#define BLUETOOTH_VER_2_1	4
 47#define BLUETOOTH_VER_4_0	6
 48
 49/* Reserv for core and drivers use */
 50#define BT_SKB_RESERVE	8
 51
 52#define BTPROTO_L2CAP	0
 53#define BTPROTO_HCI	1
 54#define BTPROTO_SCO	2
 55#define BTPROTO_RFCOMM	3
 56#define BTPROTO_BNEP	4
 57#define BTPROTO_CMTP	5
 58#define BTPROTO_HIDP	6
 59#define BTPROTO_AVDTP	7
 60#define BTPROTO_ISO	8
 61#define BTPROTO_LAST	BTPROTO_ISO
 62
 63#define SOL_HCI		0
 64#define SOL_L2CAP	6
 65#define SOL_SCO		17
 66#define SOL_RFCOMM	18
 67
 68#define BT_SECURITY	4
 69struct bt_security {
 70	__u8 level;
 71	__u8 key_size;
 72};
 73#define BT_SECURITY_SDP		0
 74#define BT_SECURITY_LOW		1
 75#define BT_SECURITY_MEDIUM	2
 76#define BT_SECURITY_HIGH	3
 77#define BT_SECURITY_FIPS	4
 78
 79#define BT_DEFER_SETUP	7
 80
 81#define BT_FLUSHABLE	8
 82
 83#define BT_FLUSHABLE_OFF	0
 84#define BT_FLUSHABLE_ON		1
 85
 86#define BT_POWER	9
 87struct bt_power {
 88	__u8 force_active;
 89};
 90#define BT_POWER_FORCE_ACTIVE_OFF 0
 91#define BT_POWER_FORCE_ACTIVE_ON  1
 92
 93#define BT_CHANNEL_POLICY	10
 94
 95/* BR/EDR only (default policy)
 96 *   AMP controllers cannot be used.
 97 *   Channel move requests from the remote device are denied.
 98 *   If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
 99 */
100#define BT_CHANNEL_POLICY_BREDR_ONLY		0
101
102/* BR/EDR Preferred
103 *   Allow use of AMP controllers.
104 *   If the L2CAP channel is currently on AMP, move it to BR/EDR.
105 *   Channel move requests from the remote device are allowed.
106 */
107#define BT_CHANNEL_POLICY_BREDR_PREFERRED	1
108
109/* AMP Preferred
110 *   Allow use of AMP controllers
111 *   If the L2CAP channel is currently on BR/EDR and AMP controller
112 *     resources are available, initiate a channel move to AMP.
113 *   Channel move requests from the remote device are allowed.
114 *   If the L2CAP socket has not been connected yet, try to create
115 *     and configure the channel directly on an AMP controller rather
116 *     than BR/EDR.
117 */
118#define BT_CHANNEL_POLICY_AMP_PREFERRED		2
119
120#define BT_VOICE		11
121struct bt_voice {
122	__u16 setting;
123};
124
125#define BT_VOICE_TRANSPARENT			0x0003
126#define BT_VOICE_CVSD_16BIT			0x0060
127#define BT_VOICE_TRANSPARENT_16BIT		0x0063
128
129#define BT_SNDMTU		12
130#define BT_RCVMTU		13
131#define BT_PHY			14
132
133#define BT_PHY_BR_1M_1SLOT	BIT(0)
134#define BT_PHY_BR_1M_3SLOT	BIT(1)
135#define BT_PHY_BR_1M_5SLOT	BIT(2)
136#define BT_PHY_EDR_2M_1SLOT	BIT(3)
137#define BT_PHY_EDR_2M_3SLOT	BIT(4)
138#define BT_PHY_EDR_2M_5SLOT	BIT(5)
139#define BT_PHY_EDR_3M_1SLOT	BIT(6)
140#define BT_PHY_EDR_3M_3SLOT	BIT(7)
141#define BT_PHY_EDR_3M_5SLOT	BIT(8)
142#define BT_PHY_LE_1M_TX		BIT(9)
143#define BT_PHY_LE_1M_RX		BIT(10)
144#define BT_PHY_LE_2M_TX		BIT(11)
145#define BT_PHY_LE_2M_RX		BIT(12)
146#define BT_PHY_LE_CODED_TX	BIT(13)
147#define BT_PHY_LE_CODED_RX	BIT(14)
148
149#define BT_PHY_BREDR_MASK	(BT_PHY_BR_1M_1SLOT | BT_PHY_BR_1M_3SLOT | \
150				 BT_PHY_BR_1M_5SLOT | BT_PHY_EDR_2M_1SLOT | \
151				 BT_PHY_EDR_2M_3SLOT | BT_PHY_EDR_2M_5SLOT | \
152				 BT_PHY_EDR_3M_1SLOT | BT_PHY_EDR_3M_3SLOT | \
153				 BT_PHY_EDR_3M_5SLOT)
154#define BT_PHY_LE_MASK		(BT_PHY_LE_1M_TX | BT_PHY_LE_1M_RX | \
155				 BT_PHY_LE_2M_TX | BT_PHY_LE_2M_RX | \
156				 BT_PHY_LE_CODED_TX | BT_PHY_LE_CODED_RX)
157
158#define BT_MODE			15
159
160#define BT_MODE_BASIC		0x00
161#define BT_MODE_ERTM		0x01
162#define BT_MODE_STREAMING	0x02
163#define BT_MODE_LE_FLOWCTL	0x03
164#define BT_MODE_EXT_FLOWCTL	0x04
165
166#define BT_PKT_STATUS           16
167
168#define BT_SCM_PKT_STATUS	0x03
169#define BT_SCM_ERROR		0x04
170
171#define BT_ISO_QOS		17
172
173#define BT_ISO_QOS_CIG_UNSET	0xff
174#define BT_ISO_QOS_CIS_UNSET	0xff
175
176#define BT_ISO_QOS_BIG_UNSET	0xff
177#define BT_ISO_QOS_BIS_UNSET	0xff
178
179#define BT_ISO_SYNC_TIMEOUT	0x07d0 /* 20 secs */
180
181struct bt_iso_io_qos {
182	__u32 interval;
183	__u16 latency;
184	__u16 sdu;
185	__u8  phy;
186	__u8  rtn;
187};
188
189struct bt_iso_ucast_qos {
190	__u8  cig;
191	__u8  cis;
192	__u8  sca;
193	__u8  packing;
194	__u8  framing;
195	struct bt_iso_io_qos in;
196	struct bt_iso_io_qos out;
197};
198
199struct bt_iso_bcast_qos {
200	__u8  big;
201	__u8  bis;
202	__u8  sync_factor;
203	__u8  packing;
204	__u8  framing;
205	struct bt_iso_io_qos in;
206	struct bt_iso_io_qos out;
207	__u8  encryption;
208	__u8  bcode[16];
209	__u8  options;
210	__u16 skip;
211	__u16 sync_timeout;
212	__u8  sync_cte_type;
213	__u8  mse;
214	__u16 timeout;
215};
216
217struct bt_iso_qos {
218	union {
219		struct bt_iso_ucast_qos ucast;
220		struct bt_iso_bcast_qos bcast;
221	};
222};
223
224#define BT_ISO_PHY_1M		0x01
225#define BT_ISO_PHY_2M		0x02
226#define BT_ISO_PHY_CODED	0x04
227#define BT_ISO_PHY_ANY		(BT_ISO_PHY_1M | BT_ISO_PHY_2M | \
228				 BT_ISO_PHY_CODED)
229
230#define BT_CODEC	19
231
232struct	bt_codec_caps {
233	__u8	len;
234	__u8	data[];
235} __packed;
236
237struct bt_codec {
238	__u8	id;
239	__u16	cid;
240	__u16	vid;
241	__u8	data_path;
242	__u8	num_caps;
243} __packed;
244
245struct bt_codecs {
246	__u8		num_codecs;
247	struct bt_codec	codecs[];
248} __packed;
249
250#define BT_CODEC_CVSD		0x02
251#define BT_CODEC_TRANSPARENT	0x03
252#define BT_CODEC_MSBC		0x05
253
254#define BT_ISO_BASE		20
255
256/* Socket option value 21 reserved */
257
258#define BT_PKT_SEQNUM		22
259
260#define BT_SCM_PKT_SEQNUM	0x05
261
262__printf(1, 2)
263void bt_info(const char *fmt, ...);
264__printf(1, 2)
265void bt_warn(const char *fmt, ...);
266__printf(1, 2)
267void bt_err(const char *fmt, ...);
268#if IS_ENABLED(CONFIG_BT_FEATURE_DEBUG)
269void bt_dbg_set(bool enable);
270bool bt_dbg_get(void);
271__printf(1, 2)
272void bt_dbg(const char *fmt, ...);
273#endif
274__printf(1, 2)
275void bt_warn_ratelimited(const char *fmt, ...);
276__printf(1, 2)
277void bt_err_ratelimited(const char *fmt, ...);
278
279#define BT_INFO(fmt, ...)	bt_info(fmt "\n", ##__VA_ARGS__)
280#define BT_WARN(fmt, ...)	bt_warn(fmt "\n", ##__VA_ARGS__)
281#define BT_ERR(fmt, ...)	bt_err(fmt "\n", ##__VA_ARGS__)
282
283#if IS_ENABLED(CONFIG_BT_FEATURE_DEBUG)
284#define BT_DBG(fmt, ...) \
285	bt_dbg("%s:%d: " fmt "\n", __func__, __LINE__, ##__VA_ARGS__)
286#else
287#define BT_DBG(fmt, ...)	pr_debug(fmt "\n", ##__VA_ARGS__)
288#endif
289
290#define bt_dev_name(hdev) ((hdev) ? (hdev)->name : "null")
291
292#define bt_dev_info(hdev, fmt, ...)				\
293	BT_INFO("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
294#define bt_dev_warn(hdev, fmt, ...)				\
295	BT_WARN("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
296#define bt_dev_err(hdev, fmt, ...)				\
297	BT_ERR("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
298#define bt_dev_dbg(hdev, fmt, ...)				\
299	BT_DBG("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
300
301#define bt_dev_warn_ratelimited(hdev, fmt, ...)			\
302	bt_warn_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
303#define bt_dev_err_ratelimited(hdev, fmt, ...)			\
304	bt_err_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
305
306/* Connection and socket states */
307enum bt_sock_state {
308	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
309	BT_OPEN,
310	BT_BOUND,
311	BT_LISTEN,
312	BT_CONNECT,
313	BT_CONNECT2,
314	BT_CONFIG,
315	BT_DISCONN,
316	BT_CLOSED
317};
318
319/* If unused will be removed by compiler */
320static inline const char *state_to_string(int state)
321{
322	switch (state) {
323	case BT_CONNECTED:
324		return "BT_CONNECTED";
325	case BT_OPEN:
326		return "BT_OPEN";
327	case BT_BOUND:
328		return "BT_BOUND";
329	case BT_LISTEN:
330		return "BT_LISTEN";
331	case BT_CONNECT:
332		return "BT_CONNECT";
333	case BT_CONNECT2:
334		return "BT_CONNECT2";
335	case BT_CONFIG:
336		return "BT_CONFIG";
337	case BT_DISCONN:
338		return "BT_DISCONN";
339	case BT_CLOSED:
340		return "BT_CLOSED";
341	}
342
343	return "invalid state";
344}
345
346/* BD Address */
347typedef struct {
348	__u8 b[6];
349} __packed bdaddr_t;
350
351/* BD Address type */
352#define BDADDR_BREDR		0x00
353#define BDADDR_LE_PUBLIC	0x01
354#define BDADDR_LE_RANDOM	0x02
355
356static inline bool bdaddr_type_is_valid(u8 type)
357{
358	switch (type) {
359	case BDADDR_BREDR:
360	case BDADDR_LE_PUBLIC:
361	case BDADDR_LE_RANDOM:
362		return true;
363	}
364
365	return false;
366}
367
368static inline bool bdaddr_type_is_le(u8 type)
369{
370	switch (type) {
371	case BDADDR_LE_PUBLIC:
372	case BDADDR_LE_RANDOM:
373		return true;
374	}
375
376	return false;
377}
378
379#define BDADDR_ANY  (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
380#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
381
382/* Copy, swap, convert BD Address */
383static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
384{
385	return memcmp(ba1, ba2, sizeof(bdaddr_t));
386}
387static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
388{
389	memcpy(dst, src, sizeof(bdaddr_t));
390}
391
392void baswap(bdaddr_t *dst, const bdaddr_t *src);
393
394/* Common socket structures and functions */
395
396#define bt_sk(__sk) ((struct bt_sock *) __sk)
397
398struct bt_sock {
399	struct sock sk;
400	struct list_head accept_q;
401	struct sock *parent;
402	unsigned long flags;
403	void (*skb_msg_name)(struct sk_buff *, void *, int *);
404	void (*skb_put_cmsg)(struct sk_buff *, struct msghdr *, struct sock *);
405};
406
407enum {
408	BT_SK_DEFER_SETUP,
409	BT_SK_SUSPEND,
410	BT_SK_PKT_STATUS,
411	BT_SK_PKT_SEQNUM,
412};
413
414struct bt_sock_list {
415	struct hlist_head head;
416	rwlock_t          lock;
417#ifdef CONFIG_PROC_FS
418        int (* custom_seq_show)(struct seq_file *, void *);
419#endif
420};
421
422int  bt_sock_register(int proto, const struct net_proto_family *ops);
423void bt_sock_unregister(int proto);
424void bt_sock_link(struct bt_sock_list *l, struct sock *s);
425void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
426bool bt_sock_linked(struct bt_sock_list *l, struct sock *s);
427struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
428			   struct proto *prot, int proto, gfp_t prio, int kern);
429int  bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
430		     int flags);
431int  bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,
432			    size_t len, int flags);
433__poll_t bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
434int  bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
435int  bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
436int  bt_sock_wait_ready(struct sock *sk, unsigned int msg_flags);
437
438void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh);
439void bt_accept_unlink(struct sock *sk);
440struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
441
442/* Skb helpers */
443struct l2cap_ctrl {
444	u8	sframe:1,
445		poll:1,
446		final:1,
447		fcs:1,
448		sar:2,
449		super:2;
450
451	u16	reqseq;
452	u16	txseq;
453	u8	retries;
454	__le16  psm;
455	bdaddr_t bdaddr;
456	struct l2cap_chan *chan;
457};
458
459struct hci_dev;
460
461typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status, u16 opcode);
462typedef void (*hci_req_complete_skb_t)(struct hci_dev *hdev, u8 status,
463				       u16 opcode, struct sk_buff *skb);
464
465void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
466			  hci_req_complete_t *req_complete,
467			  hci_req_complete_skb_t *req_complete_skb);
468
469int hci_ethtool_ts_info(unsigned int index, int sk_proto,
470			struct kernel_ethtool_ts_info *ts_info);
471
472#define HCI_REQ_START	BIT(0)
473#define HCI_REQ_SKB	BIT(1)
474
475struct hci_ctrl {
476	struct sock *sk;
477	u16 opcode;
478	u8 req_flags;
479	u8 req_event;
480	union {
481		hci_req_complete_t req_complete;
482		hci_req_complete_skb_t req_complete_skb;
483	};
484};
485
486struct mgmt_ctrl {
487	struct hci_dev *hdev;
488	u16 opcode;
489};
490
491struct bt_skb_cb {
492	u8 pkt_type;
493	u8 force_active;
494	u16 expect;
495	u16 pkt_seqnum;
496	u8 incoming:1;
497	u8 pkt_status:2;
498	union {
499		struct l2cap_ctrl l2cap;
500		struct hci_ctrl hci;
501		struct mgmt_ctrl mgmt;
502		struct scm_creds creds;
503	};
504};
505#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
506
507#define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type
508#define hci_skb_pkt_status(skb) bt_cb((skb))->pkt_status
509#define hci_skb_pkt_seqnum(skb) bt_cb((skb))->pkt_seqnum
510#define hci_skb_expect(skb) bt_cb((skb))->expect
511#define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode
512#define hci_skb_event(skb) bt_cb((skb))->hci.req_event
513#define hci_skb_sk(skb) bt_cb((skb))->hci.sk
514
515static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
516{
517	struct sk_buff *skb;
518
519	skb = alloc_skb(len + BT_SKB_RESERVE, how);
520	if (skb)
521		skb_reserve(skb, BT_SKB_RESERVE);
522	return skb;
523}
524
525static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
526					unsigned long len, int nb, int *err)
527{
528	struct sk_buff *skb;
529
530	skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
531	if (skb)
532		skb_reserve(skb, BT_SKB_RESERVE);
533
534	if (!skb && *err)
535		return NULL;
536
537	*err = sock_error(sk);
538	if (*err)
539		goto out;
540
541	if (sk->sk_shutdown) {
542		*err = -ECONNRESET;
543		goto out;
544	}
545
546	return skb;
547
548out:
549	kfree_skb(skb);
550	return NULL;
551}
552
553/* Shall not be called with lock_sock held */
554static inline struct sk_buff *bt_skb_sendmsg(struct sock *sk,
555					     struct msghdr *msg,
556					     size_t len, size_t mtu,
557					     size_t headroom, size_t tailroom)
558{
559	struct sk_buff *skb;
560	size_t size = min_t(size_t, len, mtu);
561	int err;
562
563	skb = bt_skb_send_alloc(sk, size + headroom + tailroom,
564				msg->msg_flags & MSG_DONTWAIT, &err);
565	if (!skb)
566		return ERR_PTR(err);
567
568	skb_reserve(skb, headroom);
569	skb_tailroom_reserve(skb, mtu, tailroom);
570
571	if (!copy_from_iter_full(skb_put(skb, size), size, &msg->msg_iter)) {
572		kfree_skb(skb);
573		return ERR_PTR(-EFAULT);
574	}
575
576	skb->priority = READ_ONCE(sk->sk_priority);
577
578	return skb;
579}
580
581/* Similar to bt_skb_sendmsg but can split the msg into multiple fragments
582 * accourding to the MTU.
583 */
584static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
585					      struct msghdr *msg,
586					      size_t len, size_t mtu,
587					      size_t headroom, size_t tailroom)
588{
589	struct sk_buff *skb, **frag;
590
591	skb = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
592	if (IS_ERR(skb))
593		return skb;
594
595	len -= skb->len;
596	if (!len)
597		return skb;
598
599	/* Add remaining data over MTU as continuation fragments */
600	frag = &skb_shinfo(skb)->frag_list;
601	while (len) {
602		struct sk_buff *tmp;
603
604		tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
605		if (IS_ERR(tmp)) {
606			return skb;
607		}
608
609		len -= tmp->len;
610
611		*frag = tmp;
612		frag = &(*frag)->next;
613	}
614
615	return skb;
616}
617
618int bt_to_errno(u16 code);
619__u8 bt_status(int err);
620
621void hci_sock_set_flag(struct sock *sk, int nr);
622void hci_sock_clear_flag(struct sock *sk, int nr);
623int hci_sock_test_flag(struct sock *sk, int nr);
624unsigned short hci_sock_get_channel(struct sock *sk);
625u32 hci_sock_get_cookie(struct sock *sk);
626
627int hci_sock_init(void);
628void hci_sock_cleanup(void);
629
630int bt_sysfs_init(void);
631void bt_sysfs_cleanup(void);
632
633int bt_procfs_init(struct net *net, const char *name,
634		   struct bt_sock_list *sk_list,
635		   int (*seq_show)(struct seq_file *, void *));
636void bt_procfs_cleanup(struct net *net, const char *name);
637
638extern struct dentry *bt_debugfs;
639
640int l2cap_init(void);
641void l2cap_exit(void);
642
643#if IS_ENABLED(CONFIG_BT_BREDR)
644int sco_init(void);
645void sco_exit(void);
646#else
647static inline int sco_init(void)
648{
649	return 0;
650}
651
652static inline void sco_exit(void)
653{
654}
655#endif
656
657#if IS_ENABLED(CONFIG_BT_LE)
658int iso_init(void);
659int iso_exit(void);
660bool iso_inited(void);
661#else
662static inline int iso_init(void)
663{
664	return 0;
665}
666
667static inline int iso_exit(void)
668{
669	return 0;
670}
671
672static inline bool iso_inited(void)
673{
674	return false;
675}
676#endif
677
678int mgmt_init(void);
679void mgmt_exit(void);
680void mgmt_cleanup(struct sock *sk);
681
682void bt_sock_reclassify_lock(struct sock *sk, int proto);
683
684#endif /* __BLUETOOTH_H */