1/*
   2   BlueZ - Bluetooth protocol stack for Linux
   3   Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
   4
   5   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7   This program is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License version 2 as
   9   published by the Free Software Foundation;
  10
  11   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22   SOFTWARE IS DISCLAIMED.
  23*/
  24
  25#ifndef __HCI_CORE_H
  26#define __HCI_CORE_H
  27
  28#include <linux/idr.h>
  29#include <linux/leds.h>
  30#include <linux/rculist.h>
  31
  32#include <net/bluetooth/hci.h>
  33#include <net/bluetooth/hci_sock.h>
  34
  35/* HCI priority */
  36#define HCI_PRIO_MAX	7
  37
  38/* HCI Core structures */
  39struct inquiry_data {
  40	bdaddr_t	bdaddr;
  41	__u8		pscan_rep_mode;
  42	__u8		pscan_period_mode;
  43	__u8		pscan_mode;
  44	__u8		dev_class[3];
  45	__le16		clock_offset;
  46	__s8		rssi;
  47	__u8		ssp_mode;
  48};
  49
  50struct inquiry_entry {
  51	struct list_head	all;		/* inq_cache.all */
  52	struct list_head	list;		/* unknown or resolve */
  53	enum {
  54		NAME_NOT_KNOWN,
  55		NAME_NEEDED,
  56		NAME_PENDING,
  57		NAME_KNOWN,
  58	} name_state;
  59	__u32			timestamp;
  60	struct inquiry_data	data;
  61};
  62
  63struct discovery_state {
  64	int			type;
  65	enum {
  66		DISCOVERY_STOPPED,
  67		DISCOVERY_STARTING,
  68		DISCOVERY_FINDING,
  69		DISCOVERY_RESOLVING,
  70		DISCOVERY_STOPPING,
  71	} state;
  72	struct list_head	all;	/* All devices found during inquiry */
  73	struct list_head	unknown;	/* Name state not known */
  74	struct list_head	resolve;	/* Name needs to be resolved */
  75	__u32			timestamp;
  76	bdaddr_t		last_adv_addr;
  77	u8			last_adv_addr_type;
  78	s8			last_adv_rssi;
  79	u32			last_adv_flags;
  80	u8			last_adv_data[HCI_MAX_AD_LENGTH];
  81	u8			last_adv_data_len;
  82	bool			report_invalid_rssi;
  83	bool			result_filtering;
  84	bool			limited;
  85	s8			rssi;
  86	u16			uuid_count;
  87	u8			(*uuids)[16];
  88	unsigned long		scan_start;
  89	unsigned long		scan_duration;
  90};
  91
  92#define SUSPEND_NOTIFIER_TIMEOUT	msecs_to_jiffies(2000) /* 2 seconds */
  93
  94enum suspend_tasks {
  95	SUSPEND_PAUSE_DISCOVERY,
  96	SUSPEND_UNPAUSE_DISCOVERY,
  97
  98	SUSPEND_PAUSE_ADVERTISING,
  99	SUSPEND_UNPAUSE_ADVERTISING,
 100
 101	SUSPEND_SCAN_DISABLE,
 102	SUSPEND_SCAN_ENABLE,
 103	SUSPEND_DISCONNECTING,
 104
 105	SUSPEND_POWERING_DOWN,
 106
 107	SUSPEND_PREPARE_NOTIFIER,
 108
 109	SUSPEND_SET_ADV_FILTER,
 110	__SUSPEND_NUM_TASKS
 111};
 112
 113enum suspended_state {
 114	BT_RUNNING = 0,
 115	BT_SUSPEND_DISCONNECT,
 116	BT_SUSPEND_CONFIGURE_WAKE,
 117};
 118
 119struct hci_conn_hash {
 120	struct list_head list;
 121	unsigned int     acl_num;
 122	unsigned int     amp_num;
 123	unsigned int     sco_num;
 124	unsigned int     le_num;
 125	unsigned int     le_num_peripheral;
 126};
 127
 128struct bdaddr_list {
 129	struct list_head list;
 130	bdaddr_t bdaddr;
 131	u8 bdaddr_type;
 132};
 133
 134struct bdaddr_list_with_irk {
 135	struct list_head list;
 136	bdaddr_t bdaddr;
 137	u8 bdaddr_type;
 138	u8 peer_irk[16];
 139	u8 local_irk[16];
 140};
 141
 142struct bdaddr_list_with_flags {
 143	struct list_head list;
 144	bdaddr_t bdaddr;
 145	u8 bdaddr_type;
 146	u32 current_flags;
 147};
 148
 149enum hci_conn_flags {
 150	HCI_CONN_FLAG_REMOTE_WAKEUP,
 151	HCI_CONN_FLAG_MAX
 152};
 153
 154#define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
 155
 156/* Make sure number of flags doesn't exceed sizeof(current_flags) */
 157static_assert(HCI_CONN_FLAG_MAX < 32);
 158
 159struct bt_uuid {
 160	struct list_head list;
 161	u8 uuid[16];
 162	u8 size;
 163	u8 svc_hint;
 164};
 165
 166struct blocked_key {
 167	struct list_head list;
 168	struct rcu_head rcu;
 169	u8 type;
 170	u8 val[16];
 171};
 172
 173struct smp_csrk {
 174	bdaddr_t bdaddr;
 175	u8 bdaddr_type;
 176	u8 type;
 177	u8 val[16];
 178};
 179
 180struct smp_ltk {
 181	struct list_head list;
 182	struct rcu_head rcu;
 183	bdaddr_t bdaddr;
 184	u8 bdaddr_type;
 185	u8 authenticated;
 186	u8 type;
 187	u8 enc_size;
 188	__le16 ediv;
 189	__le64 rand;
 190	u8 val[16];
 191};
 192
 193struct smp_irk {
 194	struct list_head list;
 195	struct rcu_head rcu;
 196	bdaddr_t rpa;
 197	bdaddr_t bdaddr;
 198	u8 addr_type;
 199	u8 val[16];
 200};
 201
 202struct link_key {
 203	struct list_head list;
 204	struct rcu_head rcu;
 205	bdaddr_t bdaddr;
 206	u8 type;
 207	u8 val[HCI_LINK_KEY_SIZE];
 208	u8 pin_len;
 209};
 210
 211struct oob_data {
 212	struct list_head list;
 213	bdaddr_t bdaddr;
 214	u8 bdaddr_type;
 215	u8 present;
 216	u8 hash192[16];
 217	u8 rand192[16];
 218	u8 hash256[16];
 219	u8 rand256[16];
 220};
 221
 222struct adv_info {
 223	struct list_head list;
 224	bool pending;
 225	__u8	instance;
 226	__u32	flags;
 227	__u16	timeout;
 228	__u16	remaining_time;
 229	__u16	duration;
 230	__u16	adv_data_len;
 231	__u8	adv_data[HCI_MAX_EXT_AD_LENGTH];
 232	__u16	scan_rsp_len;
 233	__u8	scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 234	__s8	tx_power;
 235	__u32   min_interval;
 236	__u32   max_interval;
 237	bdaddr_t	random_addr;
 238	bool 		rpa_expired;
 239	struct delayed_work	rpa_expired_cb;
 240};
 241
 242#define HCI_MAX_ADV_INSTANCES		5
 243#define HCI_DEFAULT_ADV_DURATION	2
 244
 245#define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
 246
 247struct adv_pattern {
 248	struct list_head list;
 249	__u8 ad_type;
 250	__u8 offset;
 251	__u8 length;
 252	__u8 value[HCI_MAX_AD_LENGTH];
 253};
 254
 255struct adv_rssi_thresholds {
 256	__s8 low_threshold;
 257	__s8 high_threshold;
 258	__u16 low_threshold_timeout;
 259	__u16 high_threshold_timeout;
 260	__u8 sampling_period;
 261};
 262
 263struct adv_monitor {
 264	struct list_head patterns;
 265	struct adv_rssi_thresholds rssi;
 266	__u16		handle;
 267
 268	enum {
 269		ADV_MONITOR_STATE_NOT_REGISTERED,
 270		ADV_MONITOR_STATE_REGISTERED,
 271		ADV_MONITOR_STATE_OFFLOADED
 272	} state;
 273};
 274
 275#define HCI_MIN_ADV_MONITOR_HANDLE		1
 276#define HCI_MAX_ADV_MONITOR_NUM_HANDLES		32
 277#define HCI_MAX_ADV_MONITOR_NUM_PATTERNS	16
 278#define HCI_ADV_MONITOR_EXT_NONE		1
 279#define HCI_ADV_MONITOR_EXT_MSFT		2
 280
 281#define HCI_MAX_SHORT_NAME_LENGTH	10
 282
 283/* Min encryption key size to match with SMP */
 284#define HCI_MIN_ENC_KEY_SIZE		7
 285
 286/* Default LE RPA expiry time, 15 minutes */
 287#define HCI_DEFAULT_RPA_TIMEOUT		(15 * 60)
 288
 289/* Default min/max age of connection information (1s/3s) */
 290#define DEFAULT_CONN_INFO_MIN_AGE	1000
 291#define DEFAULT_CONN_INFO_MAX_AGE	3000
 292/* Default authenticated payload timeout 30s */
 293#define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
 294
 295struct amp_assoc {
 296	__u16	len;
 297	__u16	offset;
 298	__u16	rem_len;
 299	__u16	len_so_far;
 300	__u8	data[HCI_MAX_AMP_ASSOC_SIZE];
 301};
 302
 303#define HCI_MAX_PAGES	3
 304
 305struct hci_dev {
 306	struct list_head list;
 307	struct mutex	lock;
 308
 309	char		name[8];
 310	unsigned long	flags;
 311	__u16		id;
 312	__u8		bus;
 313	__u8		dev_type;
 314	bdaddr_t	bdaddr;
 315	bdaddr_t	setup_addr;
 316	bdaddr_t	public_addr;
 317	bdaddr_t	random_addr;
 318	bdaddr_t	static_addr;
 319	__u8		adv_addr_type;
 320	__u8		dev_name[HCI_MAX_NAME_LENGTH];
 321	__u8		short_name[HCI_MAX_SHORT_NAME_LENGTH];
 322	__u8		eir[HCI_MAX_EIR_LENGTH];
 323	__u16		appearance;
 324	__u8		dev_class[3];
 325	__u8		major_class;
 326	__u8		minor_class;
 327	__u8		max_page;
 328	__u8		features[HCI_MAX_PAGES][8];
 329	__u8		le_features[8];
 330	__u8		le_accept_list_size;
 331	__u8		le_resolv_list_size;
 332	__u8		le_num_of_adv_sets;
 333	__u8		le_states[8];
 334	__u8		commands[64];
 335	__u8		hci_ver;
 336	__u16		hci_rev;
 337	__u8		lmp_ver;
 338	__u16		manufacturer;
 339	__u16		lmp_subver;
 340	__u16		voice_setting;
 341	__u8		num_iac;
 342	__u8		stored_max_keys;
 343	__u8		stored_num_keys;
 344	__u8		io_capability;
 345	__s8		inq_tx_power;
 346	__u8		err_data_reporting;
 347	__u16		page_scan_interval;
 348	__u16		page_scan_window;
 349	__u8		page_scan_type;
 350	__u8		le_adv_channel_map;
 351	__u16		le_adv_min_interval;
 352	__u16		le_adv_max_interval;
 353	__u8		le_scan_type;
 354	__u16		le_scan_interval;
 355	__u16		le_scan_window;
 356	__u16		le_scan_int_suspend;
 357	__u16		le_scan_window_suspend;
 358	__u16		le_scan_int_discovery;
 359	__u16		le_scan_window_discovery;
 360	__u16		le_scan_int_adv_monitor;
 361	__u16		le_scan_window_adv_monitor;
 362	__u16		le_scan_int_connect;
 363	__u16		le_scan_window_connect;
 364	__u16		le_conn_min_interval;
 365	__u16		le_conn_max_interval;
 366	__u16		le_conn_latency;
 367	__u16		le_supv_timeout;
 368	__u16		le_def_tx_len;
 369	__u16		le_def_tx_time;
 370	__u16		le_max_tx_len;
 371	__u16		le_max_tx_time;
 372	__u16		le_max_rx_len;
 373	__u16		le_max_rx_time;
 374	__u8		le_max_key_size;
 375	__u8		le_min_key_size;
 376	__u16		discov_interleaved_timeout;
 377	__u16		conn_info_min_age;
 378	__u16		conn_info_max_age;
 379	__u16		auth_payload_timeout;
 380	__u8		min_enc_key_size;
 381	__u8		max_enc_key_size;
 382	__u8		pairing_opts;
 383	__u8		ssp_debug_mode;
 384	__u8		hw_error_code;
 385	__u32		clock;
 386	__u16		advmon_allowlist_duration;
 387	__u16		advmon_no_filter_duration;
 388	__u8		enable_advmon_interleave_scan;
 389
 390	__u16		devid_source;
 391	__u16		devid_vendor;
 392	__u16		devid_product;
 393	__u16		devid_version;
 394
 395	__u8		def_page_scan_type;
 396	__u16		def_page_scan_int;
 397	__u16		def_page_scan_window;
 398	__u8		def_inq_scan_type;
 399	__u16		def_inq_scan_int;
 400	__u16		def_inq_scan_window;
 401	__u16		def_br_lsto;
 402	__u16		def_page_timeout;
 403	__u16		def_multi_adv_rotation_duration;
 404	__u16		def_le_autoconnect_timeout;
 405	__s8		min_le_tx_power;
 406	__s8		max_le_tx_power;
 407
 408	__u16		pkt_type;
 409	__u16		esco_type;
 410	__u16		link_policy;
 411	__u16		link_mode;
 412
 413	__u32		idle_timeout;
 414	__u16		sniff_min_interval;
 415	__u16		sniff_max_interval;
 416
 417	__u8		amp_status;
 418	__u32		amp_total_bw;
 419	__u32		amp_max_bw;
 420	__u32		amp_min_latency;
 421	__u32		amp_max_pdu;
 422	__u8		amp_type;
 423	__u16		amp_pal_cap;
 424	__u16		amp_assoc_size;
 425	__u32		amp_max_flush_to;
 426	__u32		amp_be_flush_to;
 427
 428	struct amp_assoc	loc_assoc;
 429
 430	__u8		flow_ctl_mode;
 431
 432	unsigned int	auto_accept_delay;
 433
 434	unsigned long	quirks;
 435
 436	atomic_t	cmd_cnt;
 437	unsigned int	acl_cnt;
 438	unsigned int	sco_cnt;
 439	unsigned int	le_cnt;
 440
 441	unsigned int	acl_mtu;
 442	unsigned int	sco_mtu;
 443	unsigned int	le_mtu;
 444	unsigned int	acl_pkts;
 445	unsigned int	sco_pkts;
 446	unsigned int	le_pkts;
 447
 448	__u16		block_len;
 449	__u16		block_mtu;
 450	__u16		num_blocks;
 451	__u16		block_cnt;
 452
 453	unsigned long	acl_last_tx;
 454	unsigned long	sco_last_tx;
 455	unsigned long	le_last_tx;
 456
 457	__u8		le_tx_def_phys;
 458	__u8		le_rx_def_phys;
 459
 460	struct workqueue_struct	*workqueue;
 461	struct workqueue_struct	*req_workqueue;
 462
 463	struct work_struct	power_on;
 464	struct delayed_work	power_off;
 465	struct work_struct	error_reset;
 466
 467	__u16			discov_timeout;
 468	struct delayed_work	discov_off;
 469
 470	struct delayed_work	service_cache;
 471
 472	struct delayed_work	cmd_timer;
 473	struct delayed_work	ncmd_timer;
 474
 475	struct work_struct	rx_work;
 476	struct work_struct	cmd_work;
 477	struct work_struct	tx_work;
 478
 479	struct work_struct	discov_update;
 480	struct work_struct	bg_scan_update;
 481	struct work_struct	scan_update;
 482	struct work_struct	connectable_update;
 483	struct work_struct	discoverable_update;
 484	struct delayed_work	le_scan_disable;
 485	struct delayed_work	le_scan_restart;
 486
 487	struct sk_buff_head	rx_q;
 488	struct sk_buff_head	raw_q;
 489	struct sk_buff_head	cmd_q;
 490
 491	struct sk_buff		*sent_cmd;
 492
 493	struct mutex		req_lock;
 494	wait_queue_head_t	req_wait_q;
 495	__u32			req_status;
 496	__u32			req_result;
 497	struct sk_buff		*req_skb;
 498
 499	void			*smp_data;
 500	void			*smp_bredr_data;
 501
 502	struct discovery_state	discovery;
 503
 504	int			discovery_old_state;
 505	bool			discovery_paused;
 506	int			advertising_old_state;
 507	bool			advertising_paused;
 508
 509	struct notifier_block	suspend_notifier;
 510	struct work_struct	suspend_prepare;
 511	enum suspended_state	suspend_state_next;
 512	enum suspended_state	suspend_state;
 513	bool			scanning_paused;
 514	bool			suspended;
 515	u8			wake_reason;
 516	bdaddr_t		wake_addr;
 517	u8			wake_addr_type;
 518
 519	wait_queue_head_t	suspend_wait_q;
 520	DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
 521
 522	struct hci_conn_hash	conn_hash;
 523
 524	struct list_head	mgmt_pending;
 525	struct list_head	reject_list;
 526	struct list_head	accept_list;
 527	struct list_head	uuids;
 528	struct list_head	link_keys;
 529	struct list_head	long_term_keys;
 530	struct list_head	identity_resolving_keys;
 531	struct list_head	remote_oob_data;
 532	struct list_head	le_accept_list;
 533	struct list_head	le_resolv_list;
 534	struct list_head	le_conn_params;
 535	struct list_head	pend_le_conns;
 536	struct list_head	pend_le_reports;
 537	struct list_head	blocked_keys;
 538
 539	struct hci_dev_stats	stat;
 540
 541	atomic_t		promisc;
 542
 543	const char		*hw_info;
 544	const char		*fw_info;
 545	struct dentry		*debugfs;
 546
 547	struct device		dev;
 548
 549	struct rfkill		*rfkill;
 550
 551	DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 552
 553	__s8			adv_tx_power;
 554	__u8			adv_data[HCI_MAX_EXT_AD_LENGTH];
 555	__u8			adv_data_len;
 556	__u8			scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 557	__u8			scan_rsp_data_len;
 558
 559	struct list_head	adv_instances;
 560	unsigned int		adv_instance_cnt;
 561	__u8			cur_adv_instance;
 562	__u16			adv_instance_timeout;
 563	struct delayed_work	adv_instance_expire;
 564
 565	struct idr		adv_monitors_idr;
 566	unsigned int		adv_monitors_cnt;
 567
 568	__u8			irk[16];
 569	__u32			rpa_timeout;
 570	struct delayed_work	rpa_expired;
 571	bdaddr_t		rpa;
 572
 573	enum {
 574		INTERLEAVE_SCAN_NONE,
 575		INTERLEAVE_SCAN_NO_FILTER,
 576		INTERLEAVE_SCAN_ALLOWLIST
 577	} interleave_scan_state;
 578
 579	struct delayed_work	interleave_scan;
 580
 581#if IS_ENABLED(CONFIG_BT_LEDS)
 582	struct led_trigger	*power_led;
 583#endif
 584
 585#if IS_ENABLED(CONFIG_BT_MSFTEXT)
 586	__u16			msft_opcode;
 587	void			*msft_data;
 588	bool			msft_curve_validity;
 589#endif
 590
 591#if IS_ENABLED(CONFIG_BT_AOSPEXT)
 592	bool			aosp_capable;
 593#endif
 594
 595	int (*open)(struct hci_dev *hdev);
 596	int (*close)(struct hci_dev *hdev);
 597	int (*flush)(struct hci_dev *hdev);
 598	int (*setup)(struct hci_dev *hdev);
 599	int (*shutdown)(struct hci_dev *hdev);
 600	int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 601	void (*notify)(struct hci_dev *hdev, unsigned int evt);
 602	void (*hw_error)(struct hci_dev *hdev, u8 code);
 603	int (*post_init)(struct hci_dev *hdev);
 604	int (*set_diag)(struct hci_dev *hdev, bool enable);
 605	int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 606	void (*cmd_timeout)(struct hci_dev *hdev);
 607	bool (*prevent_wake)(struct hci_dev *hdev);
 608};
 609
 610#define HCI_PHY_HANDLE(handle)	(handle & 0xff)
 611
 612enum conn_reasons {
 613	CONN_REASON_PAIR_DEVICE,
 614	CONN_REASON_L2CAP_CHAN,
 615	CONN_REASON_SCO_CONNECT,
 616};
 617
 618struct hci_conn {
 619	struct list_head list;
 620
 621	atomic_t	refcnt;
 622
 623	bdaddr_t	dst;
 624	__u8		dst_type;
 625	bdaddr_t	src;
 626	__u8		src_type;
 627	bdaddr_t	init_addr;
 628	__u8		init_addr_type;
 629	bdaddr_t	resp_addr;
 630	__u8		resp_addr_type;
 631	__u16		handle;
 632	__u16		state;
 633	__u8		mode;
 634	__u8		type;
 635	__u8		role;
 636	bool		out;
 637	__u8		attempt;
 638	__u8		dev_class[3];
 639	__u8		features[HCI_MAX_PAGES][8];
 640	__u16		pkt_type;
 641	__u16		link_policy;
 642	__u8		key_type;
 643	__u8		auth_type;
 644	__u8		sec_level;
 645	__u8		pending_sec_level;
 646	__u8		pin_length;
 647	__u8		enc_key_size;
 648	__u8		io_capability;
 649	__u32		passkey_notify;
 650	__u8		passkey_entered;
 651	__u16		disc_timeout;
 652	__u16		conn_timeout;
 653	__u16		setting;
 654	__u16		auth_payload_timeout;
 655	__u16		le_conn_min_interval;
 656	__u16		le_conn_max_interval;
 657	__u16		le_conn_interval;
 658	__u16		le_conn_latency;
 659	__u16		le_supv_timeout;
 660	__u8		le_adv_data[HCI_MAX_AD_LENGTH];
 661	__u8		le_adv_data_len;
 662	__u8		le_tx_phy;
 663	__u8		le_rx_phy;
 664	__s8		rssi;
 665	__s8		tx_power;
 666	__s8		max_tx_power;
 667	unsigned long	flags;
 668
 669	enum conn_reasons conn_reason;
 670
 671	__u32		clock;
 672	__u16		clock_accuracy;
 673
 674	unsigned long	conn_info_timestamp;
 675
 676	__u8		remote_cap;
 677	__u8		remote_auth;
 678	__u8		remote_id;
 679
 680	unsigned int	sent;
 681
 682	struct sk_buff_head data_q;
 683	struct list_head chan_list;
 684
 685	struct delayed_work disc_work;
 686	struct delayed_work auto_accept_work;
 687	struct delayed_work idle_work;
 688	struct delayed_work le_conn_timeout;
 689	struct work_struct  le_scan_cleanup;
 690
 691	struct device	dev;
 692	struct dentry	*debugfs;
 693
 694	struct hci_dev	*hdev;
 695	void		*l2cap_data;
 696	void		*sco_data;
 697	struct amp_mgr	*amp_mgr;
 698
 699	struct hci_conn	*link;
 700
 701	void (*connect_cfm_cb)	(struct hci_conn *conn, u8 status);
 702	void (*security_cfm_cb)	(struct hci_conn *conn, u8 status);
 703	void (*disconn_cfm_cb)	(struct hci_conn *conn, u8 reason);
 704};
 705
 706struct hci_chan {
 707	struct list_head list;
 708	__u16 handle;
 709	struct hci_conn *conn;
 710	struct sk_buff_head data_q;
 711	unsigned int	sent;
 712	__u8		state;
 713	bool		amp;
 714};
 715
 716struct hci_conn_params {
 717	struct list_head list;
 718	struct list_head action;
 719
 720	bdaddr_t addr;
 721	u8 addr_type;
 722
 723	u16 conn_min_interval;
 724	u16 conn_max_interval;
 725	u16 conn_latency;
 726	u16 supervision_timeout;
 727
 728	enum {
 729		HCI_AUTO_CONN_DISABLED,
 730		HCI_AUTO_CONN_REPORT,
 731		HCI_AUTO_CONN_DIRECT,
 732		HCI_AUTO_CONN_ALWAYS,
 733		HCI_AUTO_CONN_LINK_LOSS,
 734		HCI_AUTO_CONN_EXPLICIT,
 735	} auto_connect;
 736
 737	struct hci_conn *conn;
 738	bool explicit_connect;
 739	u32 current_flags;
 740};
 741
 742extern struct list_head hci_dev_list;
 743extern struct list_head hci_cb_list;
 744extern rwlock_t hci_dev_list_lock;
 745extern struct mutex hci_cb_list_lock;
 746
 747#define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 748#define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 749#define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 750#define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 751#define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 752#define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 753#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 754
 755#define hci_dev_clear_volatile_flags(hdev)			\
 756	do {							\
 757		hci_dev_clear_flag(hdev, HCI_LE_SCAN);		\
 758		hci_dev_clear_flag(hdev, HCI_LE_ADV);		\
 759		hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 760		hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);	\
 761	} while (0)
 762
 763/* ----- HCI interface to upper protocols ----- */
 764int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 765int l2cap_disconn_ind(struct hci_conn *hcon);
 766void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 767
 768#if IS_ENABLED(CONFIG_BT_BREDR)
 769int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 770void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 771#else
 772static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 773				  __u8 *flags)
 774{
 775	return 0;
 776}
 777
 778static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 779{
 780}
 781#endif
 782
 783/* ----- Inquiry cache ----- */
 784#define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 785#define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 786
 787static inline void discovery_init(struct hci_dev *hdev)
 788{
 789	hdev->discovery.state = DISCOVERY_STOPPED;
 790	INIT_LIST_HEAD(&hdev->discovery.all);
 791	INIT_LIST_HEAD(&hdev->discovery.unknown);
 792	INIT_LIST_HEAD(&hdev->discovery.resolve);
 793	hdev->discovery.report_invalid_rssi = true;
 794	hdev->discovery.rssi = HCI_RSSI_INVALID;
 795}
 796
 797static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 798{
 799	hdev->discovery.result_filtering = false;
 800	hdev->discovery.report_invalid_rssi = true;
 801	hdev->discovery.rssi = HCI_RSSI_INVALID;
 802	hdev->discovery.uuid_count = 0;
 803	kfree(hdev->discovery.uuids);
 804	hdev->discovery.uuids = NULL;
 805	hdev->discovery.scan_start = 0;
 806	hdev->discovery.scan_duration = 0;
 807}
 808
 809bool hci_discovery_active(struct hci_dev *hdev);
 810
 811void hci_discovery_set_state(struct hci_dev *hdev, int state);
 812
 813static inline int inquiry_cache_empty(struct hci_dev *hdev)
 814{
 815	return list_empty(&hdev->discovery.all);
 816}
 817
 818static inline long inquiry_cache_age(struct hci_dev *hdev)
 819{
 820	struct discovery_state *c = &hdev->discovery;
 821	return jiffies - c->timestamp;
 822}
 823
 824static inline long inquiry_entry_age(struct inquiry_entry *e)
 825{
 826	return jiffies - e->timestamp;
 827}
 828
 829struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 830					       bdaddr_t *bdaddr);
 831struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 832						       bdaddr_t *bdaddr);
 833struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 834						       bdaddr_t *bdaddr,
 835						       int state);
 836void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 837				      struct inquiry_entry *ie);
 838u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 839			     bool name_known);
 840void hci_inquiry_cache_flush(struct hci_dev *hdev);
 841
 842/* ----- HCI Connections ----- */
 843enum {
 844	HCI_CONN_AUTH_PEND,
 845	HCI_CONN_REAUTH_PEND,
 846	HCI_CONN_ENCRYPT_PEND,
 847	HCI_CONN_RSWITCH_PEND,
 848	HCI_CONN_MODE_CHANGE_PEND,
 849	HCI_CONN_SCO_SETUP_PEND,
 850	HCI_CONN_MGMT_CONNECTED,
 851	HCI_CONN_SSP_ENABLED,
 852	HCI_CONN_SC_ENABLED,
 853	HCI_CONN_AES_CCM,
 854	HCI_CONN_POWER_SAVE,
 855	HCI_CONN_FLUSH_KEY,
 856	HCI_CONN_ENCRYPT,
 857	HCI_CONN_AUTH,
 858	HCI_CONN_SECURE,
 859	HCI_CONN_FIPS,
 860	HCI_CONN_STK_ENCRYPT,
 861	HCI_CONN_AUTH_INITIATOR,
 862	HCI_CONN_DROP,
 863	HCI_CONN_PARAM_REMOVAL_PEND,
 864	HCI_CONN_NEW_LINK_KEY,
 865	HCI_CONN_SCANNING,
 866	HCI_CONN_AUTH_FAILURE,
 867};
 868
 869static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 870{
 871	struct hci_dev *hdev = conn->hdev;
 872	return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 873	       test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 874}
 875
 876static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 877{
 878	struct hci_dev *hdev = conn->hdev;
 879	return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 880	       test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
 881}
 882
 883static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 884{
 885	struct hci_conn_hash *h = &hdev->conn_hash;
 886	list_add_rcu(&c->list, &h->list);
 887	switch (c->type) {
 888	case ACL_LINK:
 889		h->acl_num++;
 890		break;
 891	case AMP_LINK:
 892		h->amp_num++;
 893		break;
 894	case LE_LINK:
 895		h->le_num++;
 896		if (c->role == HCI_ROLE_SLAVE)
 897			h->le_num_peripheral++;
 898		break;
 899	case SCO_LINK:
 900	case ESCO_LINK:
 901		h->sco_num++;
 902		break;
 903	}
 904}
 905
 906static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 907{
 908	struct hci_conn_hash *h = &hdev->conn_hash;
 909
 910	list_del_rcu(&c->list);
 911	synchronize_rcu();
 912
 913	switch (c->type) {
 914	case ACL_LINK:
 915		h->acl_num--;
 916		break;
 917	case AMP_LINK:
 918		h->amp_num--;
 919		break;
 920	case LE_LINK:
 921		h->le_num--;
 922		if (c->role == HCI_ROLE_SLAVE)
 923			h->le_num_peripheral--;
 924		break;
 925	case SCO_LINK:
 926	case ESCO_LINK:
 927		h->sco_num--;
 928		break;
 929	}
 930}
 931
 932static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 933{
 934	struct hci_conn_hash *h = &hdev->conn_hash;
 935	switch (type) {
 936	case ACL_LINK:
 937		return h->acl_num;
 938	case AMP_LINK:
 939		return h->amp_num;
 940	case LE_LINK:
 941		return h->le_num;
 942	case SCO_LINK:
 943	case ESCO_LINK:
 944		return h->sco_num;
 945	default:
 946		return 0;
 947	}
 948}
 949
 950static inline unsigned int hci_conn_count(struct hci_dev *hdev)
 951{
 952	struct hci_conn_hash *c = &hdev->conn_hash;
 953
 954	return c->acl_num + c->amp_num + c->sco_num + c->le_num;
 955}
 956
 957static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 958{
 959	struct hci_conn_hash *h = &hdev->conn_hash;
 960	struct hci_conn *c;
 961	__u8 type = INVALID_LINK;
 962
 963	rcu_read_lock();
 964
 965	list_for_each_entry_rcu(c, &h->list, list) {
 966		if (c->handle == handle) {
 967			type = c->type;
 968			break;
 969		}
 970	}
 971
 972	rcu_read_unlock();
 973
 974	return type;
 975}
 976
 977static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 978								__u16 handle)
 979{
 980	struct hci_conn_hash *h = &hdev->conn_hash;
 981	struct hci_conn  *c;
 982
 983	rcu_read_lock();
 984
 985	list_for_each_entry_rcu(c, &h->list, list) {
 986		if (c->handle == handle) {
 987			rcu_read_unlock();
 988			return c;
 989		}
 990	}
 991	rcu_read_unlock();
 992
 993	return NULL;
 994}
 995
 996static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 997							__u8 type, bdaddr_t *ba)
 998{
 999	struct hci_conn_hash *h = &hdev->conn_hash;
1000	struct hci_conn  *c;
1001
1002	rcu_read_lock();
1003
1004	list_for_each_entry_rcu(c, &h->list, list) {
1005		if (c->type == type && !bacmp(&c->dst, ba)) {
1006			rcu_read_unlock();
1007			return c;
1008		}
1009	}
1010
1011	rcu_read_unlock();
1012
1013	return NULL;
1014}
1015
1016static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1017						       bdaddr_t *ba,
1018						       __u8 ba_type)
1019{
1020	struct hci_conn_hash *h = &hdev->conn_hash;
1021	struct hci_conn  *c;
1022
1023	rcu_read_lock();
1024
1025	list_for_each_entry_rcu(c, &h->list, list) {
1026		if (c->type != LE_LINK)
1027		       continue;
1028
1029		if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1030			rcu_read_unlock();
1031			return c;
1032		}
1033	}
1034
1035	rcu_read_unlock();
1036
1037	return NULL;
1038}
1039
1040static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1041							__u8 type, __u16 state)
1042{
1043	struct hci_conn_hash *h = &hdev->conn_hash;
1044	struct hci_conn  *c;
1045
1046	rcu_read_lock();
1047
1048	list_for_each_entry_rcu(c, &h->list, list) {
1049		if (c->type == type && c->state == state) {
1050			rcu_read_unlock();
1051			return c;
1052		}
1053	}
1054
1055	rcu_read_unlock();
1056
1057	return NULL;
1058}
1059
1060static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1061{
1062	struct hci_conn_hash *h = &hdev->conn_hash;
1063	struct hci_conn  *c;
1064
1065	rcu_read_lock();
1066
1067	list_for_each_entry_rcu(c, &h->list, list) {
1068		if (c->type == LE_LINK && c->state == BT_CONNECT &&
1069		    !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1070			rcu_read_unlock();
1071			return c;
1072		}
1073	}
1074
1075	rcu_read_unlock();
1076
1077	return NULL;
1078}
1079
1080int hci_disconnect(struct hci_conn *conn, __u8 reason);
1081bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1082void hci_sco_setup(struct hci_conn *conn, __u8 status);
1083
1084struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1085			      u8 role);
1086int hci_conn_del(struct hci_conn *conn);
1087void hci_conn_hash_flush(struct hci_dev *hdev);
1088void hci_conn_check_pending(struct hci_dev *hdev);
1089
1090struct hci_chan *hci_chan_create(struct hci_conn *conn);
1091void hci_chan_del(struct hci_chan *chan);
1092void hci_chan_list_flush(struct hci_conn *conn);
1093struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1094
1095struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1096				     u8 dst_type, u8 sec_level,
1097				     u16 conn_timeout,
1098				     enum conn_reasons conn_reason);
1099struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1100				u8 dst_type, u8 sec_level, u16 conn_timeout,
1101				u8 role, bdaddr_t *direct_rpa);
1102struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1103				 u8 sec_level, u8 auth_type,
1104				 enum conn_reasons conn_reason);
1105struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1106				 __u16 setting);
1107int hci_conn_check_link_mode(struct hci_conn *conn);
1108int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1109int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1110		      bool initiator);
1111int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1112
1113void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1114
1115void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1116
1117/*
1118 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1119 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1120 * working or anything else. They just guarantee that the object is available
1121 * and can be dereferenced. So you can use its locks, local variables and any
1122 * other constant data.
1123 * Before accessing runtime data, you _must_ lock the object and then check that
1124 * it is still running. As soon as you release the locks, the connection might
1125 * get dropped, though.
1126 *
1127 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1128 * how long the underlying connection is held. So every channel that runs on the
1129 * hci_conn object calls this to prevent the connection from disappearing. As
1130 * long as you hold a device, you must also guarantee that you have a valid
1131 * reference to the device via hci_conn_get() (or the initial reference from
1132 * hci_conn_add()).
1133 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1134 * break because nobody cares for that. But this means, we cannot use
1135 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1136 */
1137
1138static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1139{
1140	get_device(&conn->dev);
1141	return conn;
1142}
1143
1144static inline void hci_conn_put(struct hci_conn *conn)
1145{
1146	put_device(&conn->dev);
1147}
1148
1149static inline void hci_conn_hold(struct hci_conn *conn)
1150{
1151	BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1152
1153	atomic_inc(&conn->refcnt);
1154	cancel_delayed_work(&conn->disc_work);
1155}
1156
1157static inline void hci_conn_drop(struct hci_conn *conn)
1158{
1159	BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1160
1161	if (atomic_dec_and_test(&conn->refcnt)) {
1162		unsigned long timeo;
1163
1164		switch (conn->type) {
1165		case ACL_LINK:
1166		case LE_LINK:
1167			cancel_delayed_work(&conn->idle_work);
1168			if (conn->state == BT_CONNECTED) {
1169				timeo = conn->disc_timeout;
1170				if (!conn->out)
1171					timeo *= 2;
1172			} else {
1173				timeo = 0;
1174			}
1175			break;
1176
1177		case AMP_LINK:
1178			timeo = conn->disc_timeout;
1179			break;
1180
1181		default:
1182			timeo = 0;
1183			break;
1184		}
1185
1186		cancel_delayed_work(&conn->disc_work);
1187		queue_delayed_work(conn->hdev->workqueue,
1188				   &conn->disc_work, timeo);
1189	}
1190}
1191
1192/* ----- HCI Devices ----- */
1193static inline void hci_dev_put(struct hci_dev *d)
1194{
1195	BT_DBG("%s orig refcnt %d", d->name,
1196	       kref_read(&d->dev.kobj.kref));
1197
1198	put_device(&d->dev);
1199}
1200
1201static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1202{
1203	BT_DBG("%s orig refcnt %d", d->name,
1204	       kref_read(&d->dev.kobj.kref));
1205
1206	get_device(&d->dev);
1207	return d;
1208}
1209
1210#define hci_dev_lock(d)		mutex_lock(&d->lock)
1211#define hci_dev_unlock(d)	mutex_unlock(&d->lock)
1212
1213#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1214#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1215
1216static inline void *hci_get_drvdata(struct hci_dev *hdev)
1217{
1218	return dev_get_drvdata(&hdev->dev);
1219}
1220
1221static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1222{
1223	dev_set_drvdata(&hdev->dev, data);
1224}
1225
1226struct hci_dev *hci_dev_get(int index);
1227struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1228
1229struct hci_dev *hci_alloc_dev(void);
1230void hci_free_dev(struct hci_dev *hdev);
1231int hci_register_dev(struct hci_dev *hdev);
1232void hci_unregister_dev(struct hci_dev *hdev);
1233void hci_cleanup_dev(struct hci_dev *hdev);
1234int hci_suspend_dev(struct hci_dev *hdev);
1235int hci_resume_dev(struct hci_dev *hdev);
1236int hci_reset_dev(struct hci_dev *hdev);
1237int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1238int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1239__printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1240__printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1241
1242static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1243{
1244#if IS_ENABLED(CONFIG_BT_MSFTEXT)
1245	hdev->msft_opcode = opcode;
1246#endif
1247}
1248
1249static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1250{
1251#if IS_ENABLED(CONFIG_BT_AOSPEXT)
1252	hdev->aosp_capable = true;
1253#endif
1254}
1255
1256int hci_dev_open(__u16 dev);
1257int hci_dev_close(__u16 dev);
1258int hci_dev_do_close(struct hci_dev *hdev);
1259int hci_dev_reset(__u16 dev);
1260int hci_dev_reset_stat(__u16 dev);
1261int hci_dev_cmd(unsigned int cmd, void __user *arg);
1262int hci_get_dev_list(void __user *arg);
1263int hci_get_dev_info(void __user *arg);
1264int hci_get_conn_list(void __user *arg);
1265int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1266int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1267int hci_inquiry(void __user *arg);
1268
1269struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1270					   bdaddr_t *bdaddr, u8 type);
1271struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1272				    struct list_head *list, bdaddr_t *bdaddr,
1273				    u8 type);
1274struct bdaddr_list_with_flags *
1275hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1276				  u8 type);
1277int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1278int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1279				 u8 type, u8 *peer_irk, u8 *local_irk);
1280int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1281				   u8 type, u32 flags);
1282int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1283int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1284				 u8 type);
1285int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1286				   u8 type);
1287void hci_bdaddr_list_clear(struct list_head *list);
1288
1289struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1290					       bdaddr_t *addr, u8 addr_type);
1291struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1292					    bdaddr_t *addr, u8 addr_type);
1293void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1294void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1295
1296struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1297						  bdaddr_t *addr,
1298						  u8 addr_type);
1299
1300void hci_uuids_clear(struct hci_dev *hdev);
1301
1302void hci_link_keys_clear(struct hci_dev *hdev);
1303struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1304struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1305				  bdaddr_t *bdaddr, u8 *val, u8 type,
1306				  u8 pin_len, bool *persistent);
1307struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1308			    u8 addr_type, u8 type, u8 authenticated,
1309			    u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1310struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1311			     u8 addr_type, u8 role);
1312int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1313void hci_smp_ltks_clear(struct hci_dev *hdev);
1314int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1315
1316struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1317struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1318				     u8 addr_type);
1319struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1320			    u8 addr_type, u8 val[16], bdaddr_t *rpa);
1321void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1322bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1323void hci_blocked_keys_clear(struct hci_dev *hdev);
1324void hci_smp_irks_clear(struct hci_dev *hdev);
1325
1326bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1327
1328void hci_remote_oob_data_clear(struct hci_dev *hdev);
1329struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1330					  bdaddr_t *bdaddr, u8 bdaddr_type);
1331int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1332			    u8 bdaddr_type, u8 *hash192, u8 *rand192,
1333			    u8 *hash256, u8 *rand256);
1334int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1335			       u8 bdaddr_type);
1336
1337void hci_adv_instances_clear(struct hci_dev *hdev);
1338struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1339struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1340int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1341			 u16 adv_data_len, u8 *adv_data,
1342			 u16 scan_rsp_len, u8 *scan_rsp_data,
1343			 u16 timeout, u16 duration, s8 tx_power,
1344			 u32 min_interval, u32 max_interval);
1345int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1346			 u16 adv_data_len, u8 *adv_data,
1347			 u16 scan_rsp_len, u8 *scan_rsp_data);
1348int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1349void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1350
1351void hci_adv_monitors_clear(struct hci_dev *hdev);
1352void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1353int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1354int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1355bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
1356			int *err);
1357bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
1358bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
1359bool hci_is_adv_monitoring(struct hci_dev *hdev);
1360int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1361
1362void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1363
1364void hci_init_sysfs(struct hci_dev *hdev);
1365void hci_conn_init_sysfs(struct hci_conn *conn);
1366void hci_conn_add_sysfs(struct hci_conn *conn);
1367void hci_conn_del_sysfs(struct hci_conn *conn);
1368
1369#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1370
1371/* ----- LMP capabilities ----- */
1372#define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1373#define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1374#define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1375#define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1376#define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1377#define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1378#define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1379#define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1380#define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1381#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1382#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1383#define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1384#define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1385#define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1386#define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1387#define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1388#define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1389#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1390#define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1391#define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1392#define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1393#define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1394#define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1395#define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1396
1397/* ----- Extended LMP capabilities ----- */
1398#define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1399#define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1400#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1401#define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1402#define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1403#define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1404
1405/* ----- Host capabilities ----- */
1406#define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1407#define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1408#define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1409#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1410
1411#define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1412				!hci_dev_test_flag(dev, HCI_AUTO_OFF))
1413#define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1414				hci_dev_test_flag(dev, HCI_SC_ENABLED))
1415#define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1416				!hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1417#define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1418				!adv->rpa_expired)
1419
1420#define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1421		      ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1422
1423#define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1424		      ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1425
1426#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1427			 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1428
1429/* Use LL Privacy based address resolution if supported */
1430#define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1431
1432/* Use ext scanning if set ext scan param and ext scan enable is supported */
1433#define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1434			   ((dev)->commands[37] & 0x40))
1435/* Use ext create connection if command is supported */
1436#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1437
1438/* Extended advertising support */
1439#define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1440
1441/* ----- HCI protocols ----- */
1442#define HCI_PROTO_DEFER             0x01
1443
1444static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1445					__u8 type, __u8 *flags)
1446{
1447	switch (type) {
1448	case ACL_LINK:
1449		return l2cap_connect_ind(hdev, bdaddr);
1450
1451	case SCO_LINK:
1452	case ESCO_LINK:
1453		return sco_connect_ind(hdev, bdaddr, flags);
1454
1455	default:
1456		BT_ERR("unknown link type %d", type);
1457		return -EINVAL;
1458	}
1459}
1460
1461static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1462{
1463	if (conn->type != ACL_LINK && conn->type != LE_LINK)
1464		return HCI_ERROR_REMOTE_USER_TERM;
1465
1466	return l2cap_disconn_ind(conn);
1467}
1468
1469/* ----- HCI callbacks ----- */
1470struct hci_cb {
1471	struct list_head list;
1472
1473	char *name;
1474
1475	void (*connect_cfm)	(struct hci_conn *conn, __u8 status);
1476	void (*disconn_cfm)	(struct hci_conn *conn, __u8 status);
1477	void (*security_cfm)	(struct hci_conn *conn, __u8 status,
1478								__u8 encrypt);
1479	void (*key_change_cfm)	(struct hci_conn *conn, __u8 status);
1480	void (*role_switch_cfm)	(struct hci_conn *conn, __u8 status, __u8 role);
1481};
1482
1483static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1484{
1485	struct hci_cb *cb;
1486
1487	mutex_lock(&hci_cb_list_lock);
1488	list_for_each_entry(cb, &hci_cb_list, list) {
1489		if (cb->connect_cfm)
1490			cb->connect_cfm(conn, status);
1491	}
1492	mutex_unlock(&hci_cb_list_lock);
1493
1494	if (conn->connect_cfm_cb)
1495		conn->connect_cfm_cb(conn, status);
1496}
1497
1498static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1499{
1500	struct hci_cb *cb;
1501
1502	mutex_lock(&hci_cb_list_lock);
1503	list_for_each_entry(cb, &hci_cb_list, list) {
1504		if (cb->disconn_cfm)
1505			cb->disconn_cfm(conn, reason);
1506	}
1507	mutex_unlock(&hci_cb_list_lock);
1508
1509	if (conn->disconn_cfm_cb)
1510		conn->disconn_cfm_cb(conn, reason);
1511}
1512
1513static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1514{
1515	struct hci_cb *cb;
1516	__u8 encrypt;
1517
1518	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1519		return;
1520
1521	encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1522
1523	mutex_lock(&hci_cb_list_lock);
1524	list_for_each_entry(cb, &hci_cb_list, list) {
1525		if (cb->security_cfm)
1526			cb->security_cfm(conn, status, encrypt);
1527	}
1528	mutex_unlock(&hci_cb_list_lock);
1529
1530	if (conn->security_cfm_cb)
1531		conn->security_cfm_cb(conn, status);
1532}
1533
1534static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1535{
1536	struct hci_cb *cb;
1537	__u8 encrypt;
1538
1539	if (conn->state == BT_CONFIG) {
1540		if (!status)
1541			conn->state = BT_CONNECTED;
1542
1543		hci_connect_cfm(conn, status);
1544		hci_conn_drop(conn);
1545		return;
1546	}
1547
1548	if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1549		encrypt = 0x00;
1550	else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1551		encrypt = 0x02;
1552	else
1553		encrypt = 0x01;
1554
1555	if (!status) {
1556		if (conn->sec_level == BT_SECURITY_SDP)
1557			conn->sec_level = BT_SECURITY_LOW;
1558
1559		if (conn->pending_sec_level > conn->sec_level)
1560			conn->sec_level = conn->pending_sec_level;
1561	}
1562
1563	mutex_lock(&hci_cb_list_lock);
1564	list_for_each_entry(cb, &hci_cb_list, list) {
1565		if (cb->security_cfm)
1566			cb->security_cfm(conn, status, encrypt);
1567	}
1568	mutex_unlock(&hci_cb_list_lock);
1569
1570	if (conn->security_cfm_cb)
1571		conn->security_cfm_cb(conn, status);
1572}
1573
1574static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1575{
1576	struct hci_cb *cb;
1577
1578	mutex_lock(&hci_cb_list_lock);
1579	list_for_each_entry(cb, &hci_cb_list, list) {
1580		if (cb->key_change_cfm)
1581			cb->key_change_cfm(conn, status);
1582	}
1583	mutex_unlock(&hci_cb_list_lock);
1584}
1585
1586static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1587								__u8 role)
1588{
1589	struct hci_cb *cb;
1590
1591	mutex_lock(&hci_cb_list_lock);
1592	list_for_each_entry(cb, &hci_cb_list, list) {
1593		if (cb->role_switch_cfm)
1594			cb->role_switch_cfm(conn, status, role);
1595	}
1596	mutex_unlock(&hci_cb_list_lock);
1597}
1598
1599static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1600				 size_t *data_len)
1601{
1602	size_t parsed = 0;
1603
1604	if (eir_len < 2)
1605		return NULL;
1606
1607	while (parsed < eir_len - 1) {
1608		u8 field_len = eir[0];
1609
1610		if (field_len == 0)
1611			break;
1612
1613		parsed += field_len + 1;
1614
1615		if (parsed > eir_len)
1616			break;
1617
1618		if (eir[1] != type) {
1619			eir += field_len + 1;
1620			continue;
1621		}
1622
1623		/* Zero length data */
1624		if (field_len == 1)
1625			return NULL;
1626
1627		if (data_len)
1628			*data_len = field_len - 1;
1629
1630		return &eir[2];
1631	}
1632
1633	return NULL;
1634}
1635
1636static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1637{
1638	if (addr_type != ADDR_LE_DEV_RANDOM)
1639		return false;
1640
1641	if ((bdaddr->b[5] & 0xc0) == 0x40)
1642	       return true;
1643
1644	return false;
1645}
1646
1647static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1648{
1649	if (addr_type == ADDR_LE_DEV_PUBLIC)
1650		return true;
1651
1652	/* Check for Random Static address type */
1653	if ((addr->b[5] & 0xc0) == 0xc0)
1654		return true;
1655
1656	return false;
1657}
1658
1659static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1660					  bdaddr_t *bdaddr, u8 addr_type)
1661{
1662	if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1663		return NULL;
1664
1665	return hci_find_irk_by_rpa(hdev, bdaddr);
1666}
1667
1668static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1669					u16 to_multiplier)
1670{
1671	u16 max_latency;
1672
1673	if (min > max || min < 6 || max > 3200)
1674		return -EINVAL;
1675
1676	if (to_multiplier < 10 || to_multiplier > 3200)
1677		return -EINVAL;
1678
1679	if (max >= to_multiplier * 8)
1680		return -EINVAL;
1681
1682	max_latency = (to_multiplier * 4 / max) - 1;
1683	if (latency > 499 || latency > max_latency)
1684		return -EINVAL;
1685
1686	return 0;
1687}
1688
1689int hci_register_cb(struct hci_cb *hcb);
1690int hci_unregister_cb(struct hci_cb *hcb);
1691
1692struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1693			       const void *param, u32 timeout);
1694struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1695				  const void *param, u8 event, u32 timeout);
1696int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1697		   const void *param);
1698
1699int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1700		 const void *param);
1701void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1702void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1703
1704void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1705
1706struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1707			     const void *param, u32 timeout);
1708
1709u32 hci_conn_get_phy(struct hci_conn *conn);
1710
1711/* ----- HCI Sockets ----- */
1712void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1713void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1714			 int flag, struct sock *skip_sk);
1715void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1716void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1717				 void *data, u16 data_len, ktime_t tstamp,
1718				 int flag, struct sock *skip_sk);
1719
1720void hci_sock_dev_event(struct hci_dev *hdev, int event);
1721
1722#define HCI_MGMT_VAR_LEN	BIT(0)
1723#define HCI_MGMT_NO_HDEV	BIT(1)
1724#define HCI_MGMT_UNTRUSTED	BIT(2)
1725#define HCI_MGMT_UNCONFIGURED	BIT(3)
1726#define HCI_MGMT_HDEV_OPTIONAL	BIT(4)
1727
1728struct hci_mgmt_handler {
1729	int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1730		     u16 data_len);
1731	size_t data_len;
1732	unsigned long flags;
1733};
1734
1735struct hci_mgmt_chan {
1736	struct list_head list;
1737	unsigned short channel;
1738	size_t handler_count;
1739	const struct hci_mgmt_handler *handlers;
1740	void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1741};
1742
1743int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1744void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1745
1746/* Management interface */
1747#define DISCOV_TYPE_BREDR		(BIT(BDADDR_BREDR))
1748#define DISCOV_TYPE_LE			(BIT(BDADDR_LE_PUBLIC) | \
1749					 BIT(BDADDR_LE_RANDOM))
1750#define DISCOV_TYPE_INTERLEAVED		(BIT(BDADDR_BREDR) | \
1751					 BIT(BDADDR_LE_PUBLIC) | \
1752					 BIT(BDADDR_LE_RANDOM))
1753
1754/* These LE scan and inquiry parameters were chosen according to LE General
1755 * Discovery Procedure specification.
1756 */
1757#define DISCOV_LE_SCAN_WIN		0x12
1758#define DISCOV_LE_SCAN_INT		0x12
1759#define DISCOV_LE_TIMEOUT		10240	/* msec */
1760#define DISCOV_INTERLEAVED_TIMEOUT	5120	/* msec */
1761#define DISCOV_INTERLEAVED_INQUIRY_LEN	0x04
1762#define DISCOV_BREDR_INQUIRY_LEN	0x08
1763#define DISCOV_LE_RESTART_DELAY		msecs_to_jiffies(200)	/* msec */
1764#define DISCOV_LE_FAST_ADV_INT_MIN	0x00A0	/* 100 msec */
1765#define DISCOV_LE_FAST_ADV_INT_MAX	0x00F0	/* 150 msec */
1766
1767void mgmt_fill_version_info(void *ver);
1768int mgmt_new_settings(struct hci_dev *hdev);
1769void mgmt_index_added(struct hci_dev *hdev);
1770void mgmt_index_removed(struct hci_dev *hdev);
1771void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1772void mgmt_power_on(struct hci_dev *hdev, int err);
1773void __mgmt_power_off(struct hci_dev *hdev);
1774void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1775		       bool persistent);
1776void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1777			   u8 *name, u8 name_len);
1778void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1779			      u8 link_type, u8 addr_type, u8 reason,
1780			      bool mgmt_connected);
1781void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1782			    u8 link_type, u8 addr_type, u8 status);
1783void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1784			 u8 addr_type, u8 status);
1785void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1786void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1787				  u8 status);
1788void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1789				      u8 status);
1790int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1791			      u8 link_type, u8 addr_type, u32 value,
1792			      u8 confirm_hint);
1793int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1794				     u8 link_type, u8 addr_type, u8 status);
1795int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1796					 u8 link_type, u8 addr_type, u8 status);
1797int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1798			      u8 link_type, u8 addr_type);
1799int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1800				     u8 link_type, u8 addr_type, u8 status);
1801int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1802					 u8 link_type, u8 addr_type, u8 status);
1803int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1804			     u8 link_type, u8 addr_type, u32 passkey,
1805			     u8 entered);
1806void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1807void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1808void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1809void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1810				    u8 status);
1811void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1812void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1813void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1814void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1815		       u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1816		       u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1817void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1818		      u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1819void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1820void mgmt_suspending(struct hci_dev *hdev, u8 state);
1821void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1822		   u8 addr_type);
1823bool mgmt_powering_down(struct hci_dev *hdev);
1824void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1825void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1826void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1827		   bool persistent);
1828void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1829			 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1830			 u16 max_interval, u16 latency, u16 timeout);
1831void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1832bool mgmt_get_connectable(struct hci_dev *hdev);
1833void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1834void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1835u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1836void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1837			    u8 instance);
1838void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1839			      u8 instance);
1840void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
1841int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1842int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1843int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1844
1845u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1846		      u16 to_multiplier);
1847void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1848		      __u8 ltk[16], __u8 key_size);
1849
1850void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1851			       u8 *bdaddr_type);
1852
1853#define SCO_AIRMODE_MASK       0x0003
1854#define SCO_AIRMODE_CVSD       0x0000
1855#define SCO_AIRMODE_TRANSP     0x0003
1856
1857#endif /* __HCI_CORE_H */