cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

hci_core.h (53653B)


      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_sync.h>
     34#include <net/bluetooth/hci_sock.h>
     35
     36/* HCI priority */
     37#define HCI_PRIO_MAX	7
     38
     39/* HCI maximum id value */
     40#define HCI_MAX_ID 10000
     41
     42/* HCI Core structures */
     43struct inquiry_data {
     44	bdaddr_t	bdaddr;
     45	__u8		pscan_rep_mode;
     46	__u8		pscan_period_mode;
     47	__u8		pscan_mode;
     48	__u8		dev_class[3];
     49	__le16		clock_offset;
     50	__s8		rssi;
     51	__u8		ssp_mode;
     52};
     53
     54struct inquiry_entry {
     55	struct list_head	all;		/* inq_cache.all */
     56	struct list_head	list;		/* unknown or resolve */
     57	enum {
     58		NAME_NOT_KNOWN,
     59		NAME_NEEDED,
     60		NAME_PENDING,
     61		NAME_KNOWN,
     62	} name_state;
     63	__u32			timestamp;
     64	struct inquiry_data	data;
     65};
     66
     67struct discovery_state {
     68	int			type;
     69	enum {
     70		DISCOVERY_STOPPED,
     71		DISCOVERY_STARTING,
     72		DISCOVERY_FINDING,
     73		DISCOVERY_RESOLVING,
     74		DISCOVERY_STOPPING,
     75	} state;
     76	struct list_head	all;	/* All devices found during inquiry */
     77	struct list_head	unknown;	/* Name state not known */
     78	struct list_head	resolve;	/* Name needs to be resolved */
     79	__u32			timestamp;
     80	bdaddr_t		last_adv_addr;
     81	u8			last_adv_addr_type;
     82	s8			last_adv_rssi;
     83	u32			last_adv_flags;
     84	u8			last_adv_data[HCI_MAX_AD_LENGTH];
     85	u8			last_adv_data_len;
     86	bool			report_invalid_rssi;
     87	bool			result_filtering;
     88	bool			limited;
     89	s8			rssi;
     90	u16			uuid_count;
     91	u8			(*uuids)[16];
     92	unsigned long		scan_start;
     93	unsigned long		scan_duration;
     94	unsigned long		name_resolve_timeout;
     95};
     96
     97#define SUSPEND_NOTIFIER_TIMEOUT	msecs_to_jiffies(2000) /* 2 seconds */
     98
     99enum suspend_tasks {
    100	SUSPEND_PAUSE_DISCOVERY,
    101	SUSPEND_UNPAUSE_DISCOVERY,
    102
    103	SUSPEND_PAUSE_ADVERTISING,
    104	SUSPEND_UNPAUSE_ADVERTISING,
    105
    106	SUSPEND_SCAN_DISABLE,
    107	SUSPEND_SCAN_ENABLE,
    108	SUSPEND_DISCONNECTING,
    109
    110	SUSPEND_POWERING_DOWN,
    111
    112	SUSPEND_PREPARE_NOTIFIER,
    113
    114	SUSPEND_SET_ADV_FILTER,
    115	__SUSPEND_NUM_TASKS
    116};
    117
    118enum suspended_state {
    119	BT_RUNNING = 0,
    120	BT_SUSPEND_DISCONNECT,
    121	BT_SUSPEND_CONFIGURE_WAKE,
    122};
    123
    124struct hci_conn_hash {
    125	struct list_head list;
    126	unsigned int     acl_num;
    127	unsigned int     amp_num;
    128	unsigned int     sco_num;
    129	unsigned int     le_num;
    130	unsigned int     le_num_peripheral;
    131};
    132
    133struct bdaddr_list {
    134	struct list_head list;
    135	bdaddr_t bdaddr;
    136	u8 bdaddr_type;
    137};
    138
    139struct codec_list {
    140	struct list_head list;
    141	u8	id;
    142	__u16	cid;
    143	__u16	vid;
    144	u8	transport;
    145	u8	num_caps;
    146	u32	len;
    147	struct hci_codec_caps caps[];
    148};
    149
    150struct bdaddr_list_with_irk {
    151	struct list_head list;
    152	bdaddr_t bdaddr;
    153	u8 bdaddr_type;
    154	u8 peer_irk[16];
    155	u8 local_irk[16];
    156};
    157
    158/* Bitmask of connection flags */
    159enum hci_conn_flags {
    160	HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
    161	HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
    162};
    163typedef u8 hci_conn_flags_t;
    164
    165struct bdaddr_list_with_flags {
    166	struct list_head list;
    167	bdaddr_t bdaddr;
    168	u8 bdaddr_type;
    169	hci_conn_flags_t flags;
    170};
    171
    172struct bt_uuid {
    173	struct list_head list;
    174	u8 uuid[16];
    175	u8 size;
    176	u8 svc_hint;
    177};
    178
    179struct blocked_key {
    180	struct list_head list;
    181	struct rcu_head rcu;
    182	u8 type;
    183	u8 val[16];
    184};
    185
    186struct smp_csrk {
    187	bdaddr_t bdaddr;
    188	u8 bdaddr_type;
    189	u8 type;
    190	u8 val[16];
    191};
    192
    193struct smp_ltk {
    194	struct list_head list;
    195	struct rcu_head rcu;
    196	bdaddr_t bdaddr;
    197	u8 bdaddr_type;
    198	u8 authenticated;
    199	u8 type;
    200	u8 enc_size;
    201	__le16 ediv;
    202	__le64 rand;
    203	u8 val[16];
    204};
    205
    206struct smp_irk {
    207	struct list_head list;
    208	struct rcu_head rcu;
    209	bdaddr_t rpa;
    210	bdaddr_t bdaddr;
    211	u8 addr_type;
    212	u8 val[16];
    213};
    214
    215struct link_key {
    216	struct list_head list;
    217	struct rcu_head rcu;
    218	bdaddr_t bdaddr;
    219	u8 type;
    220	u8 val[HCI_LINK_KEY_SIZE];
    221	u8 pin_len;
    222};
    223
    224struct oob_data {
    225	struct list_head list;
    226	bdaddr_t bdaddr;
    227	u8 bdaddr_type;
    228	u8 present;
    229	u8 hash192[16];
    230	u8 rand192[16];
    231	u8 hash256[16];
    232	u8 rand256[16];
    233};
    234
    235struct adv_info {
    236	struct list_head list;
    237	bool enabled;
    238	bool pending;
    239	__u8	instance;
    240	__u32	flags;
    241	__u16	timeout;
    242	__u16	remaining_time;
    243	__u16	duration;
    244	__u16	adv_data_len;
    245	__u8	adv_data[HCI_MAX_EXT_AD_LENGTH];
    246	__u16	scan_rsp_len;
    247	__u8	scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
    248	__s8	tx_power;
    249	__u32   min_interval;
    250	__u32   max_interval;
    251	bdaddr_t	random_addr;
    252	bool 		rpa_expired;
    253	struct delayed_work	rpa_expired_cb;
    254};
    255
    256#define HCI_MAX_ADV_INSTANCES		5
    257#define HCI_DEFAULT_ADV_DURATION	2
    258
    259#define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
    260
    261struct monitored_device {
    262	struct list_head list;
    263
    264	bdaddr_t bdaddr;
    265	__u8     addr_type;
    266	__u16    handle;
    267	bool     notified;
    268};
    269
    270struct adv_pattern {
    271	struct list_head list;
    272	__u8 ad_type;
    273	__u8 offset;
    274	__u8 length;
    275	__u8 value[HCI_MAX_AD_LENGTH];
    276};
    277
    278struct adv_rssi_thresholds {
    279	__s8 low_threshold;
    280	__s8 high_threshold;
    281	__u16 low_threshold_timeout;
    282	__u16 high_threshold_timeout;
    283	__u8 sampling_period;
    284};
    285
    286struct adv_monitor {
    287	struct list_head patterns;
    288	struct adv_rssi_thresholds rssi;
    289	__u16		handle;
    290
    291	enum {
    292		ADV_MONITOR_STATE_NOT_REGISTERED,
    293		ADV_MONITOR_STATE_REGISTERED,
    294		ADV_MONITOR_STATE_OFFLOADED
    295	} state;
    296};
    297
    298#define HCI_MIN_ADV_MONITOR_HANDLE		1
    299#define HCI_MAX_ADV_MONITOR_NUM_HANDLES		32
    300#define HCI_MAX_ADV_MONITOR_NUM_PATTERNS	16
    301#define HCI_ADV_MONITOR_EXT_NONE		1
    302#define HCI_ADV_MONITOR_EXT_MSFT		2
    303
    304#define HCI_MAX_SHORT_NAME_LENGTH	10
    305
    306#define HCI_CONN_HANDLE_UNSET		0xffff
    307#define HCI_CONN_HANDLE_MAX		0x0eff
    308
    309/* Min encryption key size to match with SMP */
    310#define HCI_MIN_ENC_KEY_SIZE		7
    311
    312/* Default LE RPA expiry time, 15 minutes */
    313#define HCI_DEFAULT_RPA_TIMEOUT		(15 * 60)
    314
    315/* Default min/max age of connection information (1s/3s) */
    316#define DEFAULT_CONN_INFO_MIN_AGE	1000
    317#define DEFAULT_CONN_INFO_MAX_AGE	3000
    318/* Default authenticated payload timeout 30s */
    319#define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
    320
    321struct amp_assoc {
    322	__u16	len;
    323	__u16	offset;
    324	__u16	rem_len;
    325	__u16	len_so_far;
    326	__u8	data[HCI_MAX_AMP_ASSOC_SIZE];
    327};
    328
    329#define HCI_MAX_PAGES	3
    330
    331struct hci_dev {
    332	struct list_head list;
    333	struct mutex	lock;
    334
    335	char		name[8];
    336	unsigned long	flags;
    337	__u16		id;
    338	__u8		bus;
    339	__u8		dev_type;
    340	bdaddr_t	bdaddr;
    341	bdaddr_t	setup_addr;
    342	bdaddr_t	public_addr;
    343	bdaddr_t	random_addr;
    344	bdaddr_t	static_addr;
    345	__u8		adv_addr_type;
    346	__u8		dev_name[HCI_MAX_NAME_LENGTH];
    347	__u8		short_name[HCI_MAX_SHORT_NAME_LENGTH];
    348	__u8		eir[HCI_MAX_EIR_LENGTH];
    349	__u16		appearance;
    350	__u8		dev_class[3];
    351	__u8		major_class;
    352	__u8		minor_class;
    353	__u8		max_page;
    354	__u8		features[HCI_MAX_PAGES][8];
    355	__u8		le_features[8];
    356	__u8		le_accept_list_size;
    357	__u8		le_resolv_list_size;
    358	__u8		le_num_of_adv_sets;
    359	__u8		le_states[8];
    360	__u8		commands[64];
    361	__u8		hci_ver;
    362	__u16		hci_rev;
    363	__u8		lmp_ver;
    364	__u16		manufacturer;
    365	__u16		lmp_subver;
    366	__u16		voice_setting;
    367	__u8		num_iac;
    368	__u16		stored_max_keys;
    369	__u16		stored_num_keys;
    370	__u8		io_capability;
    371	__s8		inq_tx_power;
    372	__u8		err_data_reporting;
    373	__u16		page_scan_interval;
    374	__u16		page_scan_window;
    375	__u8		page_scan_type;
    376	__u8		le_adv_channel_map;
    377	__u16		le_adv_min_interval;
    378	__u16		le_adv_max_interval;
    379	__u8		le_scan_type;
    380	__u16		le_scan_interval;
    381	__u16		le_scan_window;
    382	__u16		le_scan_int_suspend;
    383	__u16		le_scan_window_suspend;
    384	__u16		le_scan_int_discovery;
    385	__u16		le_scan_window_discovery;
    386	__u16		le_scan_int_adv_monitor;
    387	__u16		le_scan_window_adv_monitor;
    388	__u16		le_scan_int_connect;
    389	__u16		le_scan_window_connect;
    390	__u16		le_conn_min_interval;
    391	__u16		le_conn_max_interval;
    392	__u16		le_conn_latency;
    393	__u16		le_supv_timeout;
    394	__u16		le_def_tx_len;
    395	__u16		le_def_tx_time;
    396	__u16		le_max_tx_len;
    397	__u16		le_max_tx_time;
    398	__u16		le_max_rx_len;
    399	__u16		le_max_rx_time;
    400	__u8		le_max_key_size;
    401	__u8		le_min_key_size;
    402	__u16		discov_interleaved_timeout;
    403	__u16		conn_info_min_age;
    404	__u16		conn_info_max_age;
    405	__u16		auth_payload_timeout;
    406	__u8		min_enc_key_size;
    407	__u8		max_enc_key_size;
    408	__u8		pairing_opts;
    409	__u8		ssp_debug_mode;
    410	__u8		hw_error_code;
    411	__u32		clock;
    412	__u16		advmon_allowlist_duration;
    413	__u16		advmon_no_filter_duration;
    414	__u8		enable_advmon_interleave_scan;
    415
    416	__u16		devid_source;
    417	__u16		devid_vendor;
    418	__u16		devid_product;
    419	__u16		devid_version;
    420
    421	__u8		def_page_scan_type;
    422	__u16		def_page_scan_int;
    423	__u16		def_page_scan_window;
    424	__u8		def_inq_scan_type;
    425	__u16		def_inq_scan_int;
    426	__u16		def_inq_scan_window;
    427	__u16		def_br_lsto;
    428	__u16		def_page_timeout;
    429	__u16		def_multi_adv_rotation_duration;
    430	__u16		def_le_autoconnect_timeout;
    431	__s8		min_le_tx_power;
    432	__s8		max_le_tx_power;
    433
    434	__u16		pkt_type;
    435	__u16		esco_type;
    436	__u16		link_policy;
    437	__u16		link_mode;
    438
    439	__u32		idle_timeout;
    440	__u16		sniff_min_interval;
    441	__u16		sniff_max_interval;
    442
    443	__u8		amp_status;
    444	__u32		amp_total_bw;
    445	__u32		amp_max_bw;
    446	__u32		amp_min_latency;
    447	__u32		amp_max_pdu;
    448	__u8		amp_type;
    449	__u16		amp_pal_cap;
    450	__u16		amp_assoc_size;
    451	__u32		amp_max_flush_to;
    452	__u32		amp_be_flush_to;
    453
    454	struct amp_assoc	loc_assoc;
    455
    456	__u8		flow_ctl_mode;
    457
    458	unsigned int	auto_accept_delay;
    459
    460	unsigned long	quirks;
    461
    462	atomic_t	cmd_cnt;
    463	unsigned int	acl_cnt;
    464	unsigned int	sco_cnt;
    465	unsigned int	le_cnt;
    466
    467	unsigned int	acl_mtu;
    468	unsigned int	sco_mtu;
    469	unsigned int	le_mtu;
    470	unsigned int	acl_pkts;
    471	unsigned int	sco_pkts;
    472	unsigned int	le_pkts;
    473
    474	__u16		block_len;
    475	__u16		block_mtu;
    476	__u16		num_blocks;
    477	__u16		block_cnt;
    478
    479	unsigned long	acl_last_tx;
    480	unsigned long	sco_last_tx;
    481	unsigned long	le_last_tx;
    482
    483	__u8		le_tx_def_phys;
    484	__u8		le_rx_def_phys;
    485
    486	struct workqueue_struct	*workqueue;
    487	struct workqueue_struct	*req_workqueue;
    488
    489	struct work_struct	power_on;
    490	struct delayed_work	power_off;
    491	struct work_struct	error_reset;
    492	struct work_struct	cmd_sync_work;
    493	struct list_head	cmd_sync_work_list;
    494	struct mutex		cmd_sync_work_lock;
    495	struct work_struct	cmd_sync_cancel_work;
    496
    497	__u16			discov_timeout;
    498	struct delayed_work	discov_off;
    499
    500	struct delayed_work	service_cache;
    501
    502	struct delayed_work	cmd_timer;
    503	struct delayed_work	ncmd_timer;
    504
    505	struct work_struct	rx_work;
    506	struct work_struct	cmd_work;
    507	struct work_struct	tx_work;
    508
    509	struct work_struct	discov_update;
    510	struct work_struct	scan_update;
    511	struct delayed_work	le_scan_disable;
    512	struct delayed_work	le_scan_restart;
    513
    514	struct sk_buff_head	rx_q;
    515	struct sk_buff_head	raw_q;
    516	struct sk_buff_head	cmd_q;
    517
    518	struct sk_buff		*sent_cmd;
    519
    520	struct mutex		req_lock;
    521	wait_queue_head_t	req_wait_q;
    522	__u32			req_status;
    523	__u32			req_result;
    524	struct sk_buff		*req_skb;
    525
    526	void			*smp_data;
    527	void			*smp_bredr_data;
    528
    529	struct discovery_state	discovery;
    530
    531	int			discovery_old_state;
    532	bool			discovery_paused;
    533	int			advertising_old_state;
    534	bool			advertising_paused;
    535
    536	struct notifier_block	suspend_notifier;
    537	enum suspended_state	suspend_state_next;
    538	enum suspended_state	suspend_state;
    539	bool			scanning_paused;
    540	bool			suspended;
    541	u8			wake_reason;
    542	bdaddr_t		wake_addr;
    543	u8			wake_addr_type;
    544
    545	struct hci_conn_hash	conn_hash;
    546
    547	struct list_head	mgmt_pending;
    548	struct list_head	reject_list;
    549	struct list_head	accept_list;
    550	struct list_head	uuids;
    551	struct list_head	link_keys;
    552	struct list_head	long_term_keys;
    553	struct list_head	identity_resolving_keys;
    554	struct list_head	remote_oob_data;
    555	struct list_head	le_accept_list;
    556	struct list_head	le_resolv_list;
    557	struct list_head	le_conn_params;
    558	struct list_head	pend_le_conns;
    559	struct list_head	pend_le_reports;
    560	struct list_head	blocked_keys;
    561	struct list_head	local_codecs;
    562
    563	struct hci_dev_stats	stat;
    564
    565	atomic_t		promisc;
    566
    567	const char		*hw_info;
    568	const char		*fw_info;
    569	struct dentry		*debugfs;
    570
    571	struct device		dev;
    572
    573	struct rfkill		*rfkill;
    574
    575	DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
    576	hci_conn_flags_t	conn_flags;
    577
    578	__s8			adv_tx_power;
    579	__u8			adv_data[HCI_MAX_EXT_AD_LENGTH];
    580	__u8			adv_data_len;
    581	__u8			scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
    582	__u8			scan_rsp_data_len;
    583
    584	struct list_head	adv_instances;
    585	unsigned int		adv_instance_cnt;
    586	__u8			cur_adv_instance;
    587	__u16			adv_instance_timeout;
    588	struct delayed_work	adv_instance_expire;
    589
    590	struct idr		adv_monitors_idr;
    591	unsigned int		adv_monitors_cnt;
    592
    593	__u8			irk[16];
    594	__u32			rpa_timeout;
    595	struct delayed_work	rpa_expired;
    596	bdaddr_t		rpa;
    597
    598	enum {
    599		INTERLEAVE_SCAN_NONE,
    600		INTERLEAVE_SCAN_NO_FILTER,
    601		INTERLEAVE_SCAN_ALLOWLIST
    602	} interleave_scan_state;
    603
    604	struct delayed_work	interleave_scan;
    605
    606	struct list_head	monitored_devices;
    607	bool			advmon_pend_notify;
    608
    609#if IS_ENABLED(CONFIG_BT_LEDS)
    610	struct led_trigger	*power_led;
    611#endif
    612
    613#if IS_ENABLED(CONFIG_BT_MSFTEXT)
    614	__u16			msft_opcode;
    615	void			*msft_data;
    616	bool			msft_curve_validity;
    617#endif
    618
    619#if IS_ENABLED(CONFIG_BT_AOSPEXT)
    620	bool			aosp_capable;
    621	bool			aosp_quality_report;
    622#endif
    623
    624	int (*open)(struct hci_dev *hdev);
    625	int (*close)(struct hci_dev *hdev);
    626	int (*flush)(struct hci_dev *hdev);
    627	int (*setup)(struct hci_dev *hdev);
    628	int (*shutdown)(struct hci_dev *hdev);
    629	int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
    630	void (*notify)(struct hci_dev *hdev, unsigned int evt);
    631	void (*hw_error)(struct hci_dev *hdev, u8 code);
    632	int (*post_init)(struct hci_dev *hdev);
    633	int (*set_diag)(struct hci_dev *hdev, bool enable);
    634	int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
    635	void (*cmd_timeout)(struct hci_dev *hdev);
    636	bool (*wakeup)(struct hci_dev *hdev);
    637	int (*set_quality_report)(struct hci_dev *hdev, bool enable);
    638	int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
    639	int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
    640				     struct bt_codec *codec, __u8 *vnd_len,
    641				     __u8 **vnd_data);
    642};
    643
    644#define HCI_PHY_HANDLE(handle)	(handle & 0xff)
    645
    646enum conn_reasons {
    647	CONN_REASON_PAIR_DEVICE,
    648	CONN_REASON_L2CAP_CHAN,
    649	CONN_REASON_SCO_CONNECT,
    650};
    651
    652struct hci_conn {
    653	struct list_head list;
    654
    655	atomic_t	refcnt;
    656
    657	bdaddr_t	dst;
    658	__u8		dst_type;
    659	bdaddr_t	src;
    660	__u8		src_type;
    661	bdaddr_t	init_addr;
    662	__u8		init_addr_type;
    663	bdaddr_t	resp_addr;
    664	__u8		resp_addr_type;
    665	__u8		adv_instance;
    666	__u16		handle;
    667	__u16		state;
    668	__u8		mode;
    669	__u8		type;
    670	__u8		role;
    671	bool		out;
    672	__u8		attempt;
    673	__u8		dev_class[3];
    674	__u8		features[HCI_MAX_PAGES][8];
    675	__u16		pkt_type;
    676	__u16		link_policy;
    677	__u8		key_type;
    678	__u8		auth_type;
    679	__u8		sec_level;
    680	__u8		pending_sec_level;
    681	__u8		pin_length;
    682	__u8		enc_key_size;
    683	__u8		io_capability;
    684	__u32		passkey_notify;
    685	__u8		passkey_entered;
    686	__u16		disc_timeout;
    687	__u16		conn_timeout;
    688	__u16		setting;
    689	__u16		auth_payload_timeout;
    690	__u16		le_conn_min_interval;
    691	__u16		le_conn_max_interval;
    692	__u16		le_conn_interval;
    693	__u16		le_conn_latency;
    694	__u16		le_supv_timeout;
    695	__u8		le_adv_data[HCI_MAX_AD_LENGTH];
    696	__u8		le_adv_data_len;
    697	__u8		le_tx_phy;
    698	__u8		le_rx_phy;
    699	__s8		rssi;
    700	__s8		tx_power;
    701	__s8		max_tx_power;
    702	unsigned long	flags;
    703
    704	enum conn_reasons conn_reason;
    705
    706	__u32		clock;
    707	__u16		clock_accuracy;
    708
    709	unsigned long	conn_info_timestamp;
    710
    711	__u8		remote_cap;
    712	__u8		remote_auth;
    713	__u8		remote_id;
    714
    715	unsigned int	sent;
    716
    717	struct sk_buff_head data_q;
    718	struct list_head chan_list;
    719
    720	struct delayed_work disc_work;
    721	struct delayed_work auto_accept_work;
    722	struct delayed_work idle_work;
    723	struct delayed_work le_conn_timeout;
    724	struct work_struct  le_scan_cleanup;
    725
    726	struct device	dev;
    727	struct dentry	*debugfs;
    728
    729	struct hci_dev	*hdev;
    730	void		*l2cap_data;
    731	void		*sco_data;
    732	struct amp_mgr	*amp_mgr;
    733
    734	struct hci_conn	*link;
    735	struct bt_codec codec;
    736
    737	void (*connect_cfm_cb)	(struct hci_conn *conn, u8 status);
    738	void (*security_cfm_cb)	(struct hci_conn *conn, u8 status);
    739	void (*disconn_cfm_cb)	(struct hci_conn *conn, u8 reason);
    740};
    741
    742struct hci_chan {
    743	struct list_head list;
    744	__u16 handle;
    745	struct hci_conn *conn;
    746	struct sk_buff_head data_q;
    747	unsigned int	sent;
    748	__u8		state;
    749	bool		amp;
    750};
    751
    752struct hci_conn_params {
    753	struct list_head list;
    754	struct list_head action;
    755
    756	bdaddr_t addr;
    757	u8 addr_type;
    758
    759	u16 conn_min_interval;
    760	u16 conn_max_interval;
    761	u16 conn_latency;
    762	u16 supervision_timeout;
    763
    764	enum {
    765		HCI_AUTO_CONN_DISABLED,
    766		HCI_AUTO_CONN_REPORT,
    767		HCI_AUTO_CONN_DIRECT,
    768		HCI_AUTO_CONN_ALWAYS,
    769		HCI_AUTO_CONN_LINK_LOSS,
    770		HCI_AUTO_CONN_EXPLICIT,
    771	} auto_connect;
    772
    773	struct hci_conn *conn;
    774	bool explicit_connect;
    775	hci_conn_flags_t flags;
    776	u8  privacy_mode;
    777};
    778
    779extern struct list_head hci_dev_list;
    780extern struct list_head hci_cb_list;
    781extern rwlock_t hci_dev_list_lock;
    782extern struct mutex hci_cb_list_lock;
    783
    784#define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
    785#define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
    786#define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
    787#define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
    788#define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
    789#define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
    790#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
    791
    792#define hci_dev_clear_volatile_flags(hdev)			\
    793	do {							\
    794		hci_dev_clear_flag(hdev, HCI_LE_SCAN);		\
    795		hci_dev_clear_flag(hdev, HCI_LE_ADV);		\
    796		hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
    797		hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);	\
    798		hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);	\
    799	} while (0)
    800
    801#define hci_dev_le_state_simultaneous(hdev) \
    802	(test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
    803	 (hdev->le_states[4] & 0x08) &&	/* Central */ \
    804	 (hdev->le_states[4] & 0x40) &&	/* Peripheral */ \
    805	 (hdev->le_states[3] & 0x10))	/* Simultaneous */
    806
    807/* ----- HCI interface to upper protocols ----- */
    808int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
    809int l2cap_disconn_ind(struct hci_conn *hcon);
    810void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
    811
    812#if IS_ENABLED(CONFIG_BT_BREDR)
    813int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
    814void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
    815#else
    816static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
    817				  __u8 *flags)
    818{
    819	return 0;
    820}
    821
    822static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
    823{
    824}
    825#endif
    826
    827/* ----- Inquiry cache ----- */
    828#define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
    829#define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
    830
    831static inline void discovery_init(struct hci_dev *hdev)
    832{
    833	hdev->discovery.state = DISCOVERY_STOPPED;
    834	INIT_LIST_HEAD(&hdev->discovery.all);
    835	INIT_LIST_HEAD(&hdev->discovery.unknown);
    836	INIT_LIST_HEAD(&hdev->discovery.resolve);
    837	hdev->discovery.report_invalid_rssi = true;
    838	hdev->discovery.rssi = HCI_RSSI_INVALID;
    839}
    840
    841static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
    842{
    843	hdev->discovery.result_filtering = false;
    844	hdev->discovery.report_invalid_rssi = true;
    845	hdev->discovery.rssi = HCI_RSSI_INVALID;
    846	hdev->discovery.uuid_count = 0;
    847	kfree(hdev->discovery.uuids);
    848	hdev->discovery.uuids = NULL;
    849	hdev->discovery.scan_start = 0;
    850	hdev->discovery.scan_duration = 0;
    851}
    852
    853bool hci_discovery_active(struct hci_dev *hdev);
    854
    855void hci_discovery_set_state(struct hci_dev *hdev, int state);
    856
    857static inline int inquiry_cache_empty(struct hci_dev *hdev)
    858{
    859	return list_empty(&hdev->discovery.all);
    860}
    861
    862static inline long inquiry_cache_age(struct hci_dev *hdev)
    863{
    864	struct discovery_state *c = &hdev->discovery;
    865	return jiffies - c->timestamp;
    866}
    867
    868static inline long inquiry_entry_age(struct inquiry_entry *e)
    869{
    870	return jiffies - e->timestamp;
    871}
    872
    873struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
    874					       bdaddr_t *bdaddr);
    875struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
    876						       bdaddr_t *bdaddr);
    877struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
    878						       bdaddr_t *bdaddr,
    879						       int state);
    880void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
    881				      struct inquiry_entry *ie);
    882u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
    883			     bool name_known);
    884void hci_inquiry_cache_flush(struct hci_dev *hdev);
    885
    886/* ----- HCI Connections ----- */
    887enum {
    888	HCI_CONN_AUTH_PEND,
    889	HCI_CONN_REAUTH_PEND,
    890	HCI_CONN_ENCRYPT_PEND,
    891	HCI_CONN_RSWITCH_PEND,
    892	HCI_CONN_MODE_CHANGE_PEND,
    893	HCI_CONN_SCO_SETUP_PEND,
    894	HCI_CONN_MGMT_CONNECTED,
    895	HCI_CONN_SSP_ENABLED,
    896	HCI_CONN_SC_ENABLED,
    897	HCI_CONN_AES_CCM,
    898	HCI_CONN_POWER_SAVE,
    899	HCI_CONN_FLUSH_KEY,
    900	HCI_CONN_ENCRYPT,
    901	HCI_CONN_AUTH,
    902	HCI_CONN_SECURE,
    903	HCI_CONN_FIPS,
    904	HCI_CONN_STK_ENCRYPT,
    905	HCI_CONN_AUTH_INITIATOR,
    906	HCI_CONN_DROP,
    907	HCI_CONN_PARAM_REMOVAL_PEND,
    908	HCI_CONN_NEW_LINK_KEY,
    909	HCI_CONN_SCANNING,
    910	HCI_CONN_AUTH_FAILURE,
    911};
    912
    913static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
    914{
    915	struct hci_dev *hdev = conn->hdev;
    916	return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
    917	       test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
    918}
    919
    920static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
    921{
    922	struct hci_dev *hdev = conn->hdev;
    923	return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
    924	       test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
    925}
    926
    927static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
    928{
    929	struct hci_conn_hash *h = &hdev->conn_hash;
    930	list_add_rcu(&c->list, &h->list);
    931	switch (c->type) {
    932	case ACL_LINK:
    933		h->acl_num++;
    934		break;
    935	case AMP_LINK:
    936		h->amp_num++;
    937		break;
    938	case LE_LINK:
    939		h->le_num++;
    940		if (c->role == HCI_ROLE_SLAVE)
    941			h->le_num_peripheral++;
    942		break;
    943	case SCO_LINK:
    944	case ESCO_LINK:
    945		h->sco_num++;
    946		break;
    947	}
    948}
    949
    950static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
    951{
    952	struct hci_conn_hash *h = &hdev->conn_hash;
    953
    954	list_del_rcu(&c->list);
    955	synchronize_rcu();
    956
    957	switch (c->type) {
    958	case ACL_LINK:
    959		h->acl_num--;
    960		break;
    961	case AMP_LINK:
    962		h->amp_num--;
    963		break;
    964	case LE_LINK:
    965		h->le_num--;
    966		if (c->role == HCI_ROLE_SLAVE)
    967			h->le_num_peripheral--;
    968		break;
    969	case SCO_LINK:
    970	case ESCO_LINK:
    971		h->sco_num--;
    972		break;
    973	}
    974}
    975
    976static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
    977{
    978	struct hci_conn_hash *h = &hdev->conn_hash;
    979	switch (type) {
    980	case ACL_LINK:
    981		return h->acl_num;
    982	case AMP_LINK:
    983		return h->amp_num;
    984	case LE_LINK:
    985		return h->le_num;
    986	case SCO_LINK:
    987	case ESCO_LINK:
    988		return h->sco_num;
    989	default:
    990		return 0;
    991	}
    992}
    993
    994static inline unsigned int hci_conn_count(struct hci_dev *hdev)
    995{
    996	struct hci_conn_hash *c = &hdev->conn_hash;
    997
    998	return c->acl_num + c->amp_num + c->sco_num + c->le_num;
    999}
   1000
   1001static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
   1002{
   1003	struct hci_conn_hash *h = &hdev->conn_hash;
   1004	struct hci_conn *c;
   1005	__u8 type = INVALID_LINK;
   1006
   1007	rcu_read_lock();
   1008
   1009	list_for_each_entry_rcu(c, &h->list, list) {
   1010		if (c->handle == handle) {
   1011			type = c->type;
   1012			break;
   1013		}
   1014	}
   1015
   1016	rcu_read_unlock();
   1017
   1018	return type;
   1019}
   1020
   1021static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
   1022								__u16 handle)
   1023{
   1024	struct hci_conn_hash *h = &hdev->conn_hash;
   1025	struct hci_conn  *c;
   1026
   1027	rcu_read_lock();
   1028
   1029	list_for_each_entry_rcu(c, &h->list, list) {
   1030		if (c->handle == handle) {
   1031			rcu_read_unlock();
   1032			return c;
   1033		}
   1034	}
   1035	rcu_read_unlock();
   1036
   1037	return NULL;
   1038}
   1039
   1040static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
   1041							__u8 type, bdaddr_t *ba)
   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 && !bacmp(&c->dst, ba)) {
   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_conn_hash_lookup_le(struct hci_dev *hdev,
   1061						       bdaddr_t *ba,
   1062						       __u8 ba_type)
   1063{
   1064	struct hci_conn_hash *h = &hdev->conn_hash;
   1065	struct hci_conn  *c;
   1066
   1067	rcu_read_lock();
   1068
   1069	list_for_each_entry_rcu(c, &h->list, list) {
   1070		if (c->type != LE_LINK)
   1071		       continue;
   1072
   1073		if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
   1074			rcu_read_unlock();
   1075			return c;
   1076		}
   1077	}
   1078
   1079	rcu_read_unlock();
   1080
   1081	return NULL;
   1082}
   1083
   1084static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
   1085							__u8 type, __u16 state)
   1086{
   1087	struct hci_conn_hash *h = &hdev->conn_hash;
   1088	struct hci_conn  *c;
   1089
   1090	rcu_read_lock();
   1091
   1092	list_for_each_entry_rcu(c, &h->list, list) {
   1093		if (c->type == type && c->state == state) {
   1094			rcu_read_unlock();
   1095			return c;
   1096		}
   1097	}
   1098
   1099	rcu_read_unlock();
   1100
   1101	return NULL;
   1102}
   1103
   1104static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
   1105{
   1106	struct hci_conn_hash *h = &hdev->conn_hash;
   1107	struct hci_conn  *c;
   1108
   1109	rcu_read_lock();
   1110
   1111	list_for_each_entry_rcu(c, &h->list, list) {
   1112		if (c->type == LE_LINK && c->state == BT_CONNECT &&
   1113		    !test_bit(HCI_CONN_SCANNING, &c->flags)) {
   1114			rcu_read_unlock();
   1115			return c;
   1116		}
   1117	}
   1118
   1119	rcu_read_unlock();
   1120
   1121	return NULL;
   1122}
   1123
   1124int hci_disconnect(struct hci_conn *conn, __u8 reason);
   1125bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
   1126void hci_sco_setup(struct hci_conn *conn, __u8 status);
   1127
   1128struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
   1129			      u8 role);
   1130int hci_conn_del(struct hci_conn *conn);
   1131void hci_conn_hash_flush(struct hci_dev *hdev);
   1132void hci_conn_check_pending(struct hci_dev *hdev);
   1133
   1134struct hci_chan *hci_chan_create(struct hci_conn *conn);
   1135void hci_chan_del(struct hci_chan *chan);
   1136void hci_chan_list_flush(struct hci_conn *conn);
   1137struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
   1138
   1139struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
   1140				     u8 dst_type, u8 sec_level,
   1141				     u16 conn_timeout,
   1142				     enum conn_reasons conn_reason);
   1143struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
   1144				u8 dst_type, bool dst_resolved, u8 sec_level,
   1145				u16 conn_timeout, u8 role);
   1146struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
   1147				 u8 sec_level, u8 auth_type,
   1148				 enum conn_reasons conn_reason);
   1149struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
   1150				 __u16 setting, struct bt_codec *codec);
   1151int hci_conn_check_link_mode(struct hci_conn *conn);
   1152int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
   1153int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
   1154		      bool initiator);
   1155int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
   1156
   1157void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
   1158
   1159void hci_conn_failed(struct hci_conn *conn, u8 status);
   1160
   1161/*
   1162 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
   1163 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
   1164 * working or anything else. They just guarantee that the object is available
   1165 * and can be dereferenced. So you can use its locks, local variables and any
   1166 * other constant data.
   1167 * Before accessing runtime data, you _must_ lock the object and then check that
   1168 * it is still running. As soon as you release the locks, the connection might
   1169 * get dropped, though.
   1170 *
   1171 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
   1172 * how long the underlying connection is held. So every channel that runs on the
   1173 * hci_conn object calls this to prevent the connection from disappearing. As
   1174 * long as you hold a device, you must also guarantee that you have a valid
   1175 * reference to the device via hci_conn_get() (or the initial reference from
   1176 * hci_conn_add()).
   1177 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
   1178 * break because nobody cares for that. But this means, we cannot use
   1179 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
   1180 */
   1181
   1182static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
   1183{
   1184	get_device(&conn->dev);
   1185	return conn;
   1186}
   1187
   1188static inline void hci_conn_put(struct hci_conn *conn)
   1189{
   1190	put_device(&conn->dev);
   1191}
   1192
   1193static inline void hci_conn_hold(struct hci_conn *conn)
   1194{
   1195	BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
   1196
   1197	atomic_inc(&conn->refcnt);
   1198	cancel_delayed_work(&conn->disc_work);
   1199}
   1200
   1201static inline void hci_conn_drop(struct hci_conn *conn)
   1202{
   1203	BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
   1204
   1205	if (atomic_dec_and_test(&conn->refcnt)) {
   1206		unsigned long timeo;
   1207
   1208		switch (conn->type) {
   1209		case ACL_LINK:
   1210		case LE_LINK:
   1211			cancel_delayed_work(&conn->idle_work);
   1212			if (conn->state == BT_CONNECTED) {
   1213				timeo = conn->disc_timeout;
   1214				if (!conn->out)
   1215					timeo *= 2;
   1216			} else {
   1217				timeo = 0;
   1218			}
   1219			break;
   1220
   1221		case AMP_LINK:
   1222			timeo = conn->disc_timeout;
   1223			break;
   1224
   1225		default:
   1226			timeo = 0;
   1227			break;
   1228		}
   1229
   1230		cancel_delayed_work(&conn->disc_work);
   1231		queue_delayed_work(conn->hdev->workqueue,
   1232				   &conn->disc_work, timeo);
   1233	}
   1234}
   1235
   1236/* ----- HCI Devices ----- */
   1237static inline void hci_dev_put(struct hci_dev *d)
   1238{
   1239	BT_DBG("%s orig refcnt %d", d->name,
   1240	       kref_read(&d->dev.kobj.kref));
   1241
   1242	put_device(&d->dev);
   1243}
   1244
   1245static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
   1246{
   1247	BT_DBG("%s orig refcnt %d", d->name,
   1248	       kref_read(&d->dev.kobj.kref));
   1249
   1250	get_device(&d->dev);
   1251	return d;
   1252}
   1253
   1254#define hci_dev_lock(d)		mutex_lock(&d->lock)
   1255#define hci_dev_unlock(d)	mutex_unlock(&d->lock)
   1256
   1257#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
   1258#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
   1259
   1260static inline void *hci_get_drvdata(struct hci_dev *hdev)
   1261{
   1262	return dev_get_drvdata(&hdev->dev);
   1263}
   1264
   1265static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
   1266{
   1267	dev_set_drvdata(&hdev->dev, data);
   1268}
   1269
   1270static inline void *hci_get_priv(struct hci_dev *hdev)
   1271{
   1272	return (char *)hdev + sizeof(*hdev);
   1273}
   1274
   1275struct hci_dev *hci_dev_get(int index);
   1276struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
   1277
   1278struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
   1279
   1280static inline struct hci_dev *hci_alloc_dev(void)
   1281{
   1282	return hci_alloc_dev_priv(0);
   1283}
   1284
   1285void hci_free_dev(struct hci_dev *hdev);
   1286int hci_register_dev(struct hci_dev *hdev);
   1287void hci_unregister_dev(struct hci_dev *hdev);
   1288void hci_release_dev(struct hci_dev *hdev);
   1289int hci_suspend_dev(struct hci_dev *hdev);
   1290int hci_resume_dev(struct hci_dev *hdev);
   1291int hci_reset_dev(struct hci_dev *hdev);
   1292int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
   1293int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
   1294__printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
   1295__printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
   1296
   1297static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
   1298{
   1299#if IS_ENABLED(CONFIG_BT_MSFTEXT)
   1300	hdev->msft_opcode = opcode;
   1301#endif
   1302}
   1303
   1304static inline void hci_set_aosp_capable(struct hci_dev *hdev)
   1305{
   1306#if IS_ENABLED(CONFIG_BT_AOSPEXT)
   1307	hdev->aosp_capable = true;
   1308#endif
   1309}
   1310
   1311int hci_dev_open(__u16 dev);
   1312int hci_dev_close(__u16 dev);
   1313int hci_dev_do_close(struct hci_dev *hdev);
   1314int hci_dev_reset(__u16 dev);
   1315int hci_dev_reset_stat(__u16 dev);
   1316int hci_dev_cmd(unsigned int cmd, void __user *arg);
   1317int hci_get_dev_list(void __user *arg);
   1318int hci_get_dev_info(void __user *arg);
   1319int hci_get_conn_list(void __user *arg);
   1320int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
   1321int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
   1322int hci_inquiry(void __user *arg);
   1323
   1324struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
   1325					   bdaddr_t *bdaddr, u8 type);
   1326struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
   1327				    struct list_head *list, bdaddr_t *bdaddr,
   1328				    u8 type);
   1329struct bdaddr_list_with_flags *
   1330hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
   1331				  u8 type);
   1332int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
   1333int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
   1334				 u8 type, u8 *peer_irk, u8 *local_irk);
   1335int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
   1336				   u8 type, u32 flags);
   1337int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
   1338int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
   1339				 u8 type);
   1340int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
   1341				   u8 type);
   1342void hci_bdaddr_list_clear(struct list_head *list);
   1343
   1344struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
   1345					       bdaddr_t *addr, u8 addr_type);
   1346struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
   1347					    bdaddr_t *addr, u8 addr_type);
   1348void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
   1349void hci_conn_params_clear_disabled(struct hci_dev *hdev);
   1350
   1351struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
   1352						  bdaddr_t *addr,
   1353						  u8 addr_type);
   1354
   1355void hci_uuids_clear(struct hci_dev *hdev);
   1356
   1357void hci_link_keys_clear(struct hci_dev *hdev);
   1358struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
   1359struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
   1360				  bdaddr_t *bdaddr, u8 *val, u8 type,
   1361				  u8 pin_len, bool *persistent);
   1362struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1363			    u8 addr_type, u8 type, u8 authenticated,
   1364			    u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
   1365struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1366			     u8 addr_type, u8 role);
   1367int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
   1368void hci_smp_ltks_clear(struct hci_dev *hdev);
   1369int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
   1370
   1371struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
   1372struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1373				     u8 addr_type);
   1374struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1375			    u8 addr_type, u8 val[16], bdaddr_t *rpa);
   1376void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
   1377bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
   1378void hci_blocked_keys_clear(struct hci_dev *hdev);
   1379void hci_smp_irks_clear(struct hci_dev *hdev);
   1380
   1381bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
   1382
   1383void hci_remote_oob_data_clear(struct hci_dev *hdev);
   1384struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
   1385					  bdaddr_t *bdaddr, u8 bdaddr_type);
   1386int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1387			    u8 bdaddr_type, u8 *hash192, u8 *rand192,
   1388			    u8 *hash256, u8 *rand256);
   1389int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1390			       u8 bdaddr_type);
   1391
   1392void hci_adv_instances_clear(struct hci_dev *hdev);
   1393struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
   1394struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
   1395int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
   1396			 u16 adv_data_len, u8 *adv_data,
   1397			 u16 scan_rsp_len, u8 *scan_rsp_data,
   1398			 u16 timeout, u16 duration, s8 tx_power,
   1399			 u32 min_interval, u32 max_interval);
   1400int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
   1401			 u16 adv_data_len, u8 *adv_data,
   1402			 u16 scan_rsp_len, u8 *scan_rsp_data);
   1403int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
   1404void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
   1405u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
   1406bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
   1407
   1408void hci_adv_monitors_clear(struct hci_dev *hdev);
   1409void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
   1410int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
   1411int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
   1412bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
   1413			int *err);
   1414bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
   1415bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
   1416bool hci_is_adv_monitoring(struct hci_dev *hdev);
   1417int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
   1418
   1419void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
   1420
   1421void hci_init_sysfs(struct hci_dev *hdev);
   1422void hci_conn_init_sysfs(struct hci_conn *conn);
   1423void hci_conn_add_sysfs(struct hci_conn *conn);
   1424void hci_conn_del_sysfs(struct hci_conn *conn);
   1425
   1426#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
   1427
   1428/* ----- LMP capabilities ----- */
   1429#define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
   1430#define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
   1431#define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
   1432#define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
   1433#define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
   1434#define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
   1435#define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
   1436#define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
   1437#define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
   1438#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
   1439#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
   1440#define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
   1441#define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
   1442#define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
   1443#define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
   1444#define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
   1445#define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
   1446#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
   1447#define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
   1448#define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
   1449#define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
   1450#define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
   1451#define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
   1452#define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
   1453
   1454/* ----- Extended LMP capabilities ----- */
   1455#define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
   1456#define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
   1457#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
   1458#define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
   1459#define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
   1460#define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
   1461
   1462/* ----- Host capabilities ----- */
   1463#define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
   1464#define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
   1465#define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
   1466#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
   1467
   1468#define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
   1469				!hci_dev_test_flag(dev, HCI_AUTO_OFF))
   1470#define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
   1471				hci_dev_test_flag(dev, HCI_SC_ENABLED))
   1472#define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
   1473				!hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
   1474#define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
   1475				!adv->rpa_expired)
   1476
   1477#define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
   1478		      ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
   1479
   1480#define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
   1481		      ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
   1482
   1483#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
   1484			 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
   1485
   1486#define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
   1487
   1488/* Use LL Privacy based address resolution if supported */
   1489#define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
   1490			     hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
   1491
   1492#define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
   1493				   (hdev->commands[39] & 0x04))
   1494
   1495/* Use enhanced synchronous connection if command is supported and its quirk
   1496 * has not been set.
   1497 */
   1498#define enhanced_sync_conn_capable(dev) \
   1499	(((dev)->commands[29] & 0x08) && \
   1500	 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
   1501
   1502/* Use ext scanning if set ext scan param and ext scan enable is supported */
   1503#define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
   1504			   ((dev)->commands[37] & 0x40))
   1505/* Use ext create connection if command is supported */
   1506#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
   1507
   1508/* Extended advertising support */
   1509#define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
   1510
   1511/* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
   1512 *
   1513 * C24: Mandatory if the LE Controller supports Connection State and either
   1514 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
   1515 */
   1516#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
   1517					 ext_adv_capable(dev))
   1518
   1519/* ----- HCI protocols ----- */
   1520#define HCI_PROTO_DEFER             0x01
   1521
   1522static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1523					__u8 type, __u8 *flags)
   1524{
   1525	switch (type) {
   1526	case ACL_LINK:
   1527		return l2cap_connect_ind(hdev, bdaddr);
   1528
   1529	case SCO_LINK:
   1530	case ESCO_LINK:
   1531		return sco_connect_ind(hdev, bdaddr, flags);
   1532
   1533	default:
   1534		BT_ERR("unknown link type %d", type);
   1535		return -EINVAL;
   1536	}
   1537}
   1538
   1539static inline int hci_proto_disconn_ind(struct hci_conn *conn)
   1540{
   1541	if (conn->type != ACL_LINK && conn->type != LE_LINK)
   1542		return HCI_ERROR_REMOTE_USER_TERM;
   1543
   1544	return l2cap_disconn_ind(conn);
   1545}
   1546
   1547/* ----- HCI callbacks ----- */
   1548struct hci_cb {
   1549	struct list_head list;
   1550
   1551	char *name;
   1552
   1553	void (*connect_cfm)	(struct hci_conn *conn, __u8 status);
   1554	void (*disconn_cfm)	(struct hci_conn *conn, __u8 status);
   1555	void (*security_cfm)	(struct hci_conn *conn, __u8 status,
   1556								__u8 encrypt);
   1557	void (*key_change_cfm)	(struct hci_conn *conn, __u8 status);
   1558	void (*role_switch_cfm)	(struct hci_conn *conn, __u8 status, __u8 role);
   1559};
   1560
   1561static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
   1562{
   1563	struct hci_cb *cb;
   1564
   1565	mutex_lock(&hci_cb_list_lock);
   1566	list_for_each_entry(cb, &hci_cb_list, list) {
   1567		if (cb->connect_cfm)
   1568			cb->connect_cfm(conn, status);
   1569	}
   1570	mutex_unlock(&hci_cb_list_lock);
   1571
   1572	if (conn->connect_cfm_cb)
   1573		conn->connect_cfm_cb(conn, status);
   1574}
   1575
   1576static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
   1577{
   1578	struct hci_cb *cb;
   1579
   1580	mutex_lock(&hci_cb_list_lock);
   1581	list_for_each_entry(cb, &hci_cb_list, list) {
   1582		if (cb->disconn_cfm)
   1583			cb->disconn_cfm(conn, reason);
   1584	}
   1585	mutex_unlock(&hci_cb_list_lock);
   1586
   1587	if (conn->disconn_cfm_cb)
   1588		conn->disconn_cfm_cb(conn, reason);
   1589}
   1590
   1591static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
   1592{
   1593	struct hci_cb *cb;
   1594	__u8 encrypt;
   1595
   1596	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
   1597		return;
   1598
   1599	encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
   1600
   1601	mutex_lock(&hci_cb_list_lock);
   1602	list_for_each_entry(cb, &hci_cb_list, list) {
   1603		if (cb->security_cfm)
   1604			cb->security_cfm(conn, status, encrypt);
   1605	}
   1606	mutex_unlock(&hci_cb_list_lock);
   1607
   1608	if (conn->security_cfm_cb)
   1609		conn->security_cfm_cb(conn, status);
   1610}
   1611
   1612static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
   1613{
   1614	struct hci_cb *cb;
   1615	__u8 encrypt;
   1616
   1617	if (conn->state == BT_CONFIG) {
   1618		if (!status)
   1619			conn->state = BT_CONNECTED;
   1620
   1621		hci_connect_cfm(conn, status);
   1622		hci_conn_drop(conn);
   1623		return;
   1624	}
   1625
   1626	if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
   1627		encrypt = 0x00;
   1628	else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
   1629		encrypt = 0x02;
   1630	else
   1631		encrypt = 0x01;
   1632
   1633	if (!status) {
   1634		if (conn->sec_level == BT_SECURITY_SDP)
   1635			conn->sec_level = BT_SECURITY_LOW;
   1636
   1637		if (conn->pending_sec_level > conn->sec_level)
   1638			conn->sec_level = conn->pending_sec_level;
   1639	}
   1640
   1641	mutex_lock(&hci_cb_list_lock);
   1642	list_for_each_entry(cb, &hci_cb_list, list) {
   1643		if (cb->security_cfm)
   1644			cb->security_cfm(conn, status, encrypt);
   1645	}
   1646	mutex_unlock(&hci_cb_list_lock);
   1647
   1648	if (conn->security_cfm_cb)
   1649		conn->security_cfm_cb(conn, status);
   1650}
   1651
   1652static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
   1653{
   1654	struct hci_cb *cb;
   1655
   1656	mutex_lock(&hci_cb_list_lock);
   1657	list_for_each_entry(cb, &hci_cb_list, list) {
   1658		if (cb->key_change_cfm)
   1659			cb->key_change_cfm(conn, status);
   1660	}
   1661	mutex_unlock(&hci_cb_list_lock);
   1662}
   1663
   1664static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
   1665								__u8 role)
   1666{
   1667	struct hci_cb *cb;
   1668
   1669	mutex_lock(&hci_cb_list_lock);
   1670	list_for_each_entry(cb, &hci_cb_list, list) {
   1671		if (cb->role_switch_cfm)
   1672			cb->role_switch_cfm(conn, status, role);
   1673	}
   1674	mutex_unlock(&hci_cb_list_lock);
   1675}
   1676
   1677static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
   1678{
   1679	if (addr_type != ADDR_LE_DEV_RANDOM)
   1680		return false;
   1681
   1682	if ((bdaddr->b[5] & 0xc0) == 0x40)
   1683	       return true;
   1684
   1685	return false;
   1686}
   1687
   1688static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
   1689{
   1690	if (addr_type == ADDR_LE_DEV_PUBLIC)
   1691		return true;
   1692
   1693	/* Check for Random Static address type */
   1694	if ((addr->b[5] & 0xc0) == 0xc0)
   1695		return true;
   1696
   1697	return false;
   1698}
   1699
   1700static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
   1701					  bdaddr_t *bdaddr, u8 addr_type)
   1702{
   1703	if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
   1704		return NULL;
   1705
   1706	return hci_find_irk_by_rpa(hdev, bdaddr);
   1707}
   1708
   1709static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
   1710					u16 to_multiplier)
   1711{
   1712	u16 max_latency;
   1713
   1714	if (min > max || min < 6 || max > 3200)
   1715		return -EINVAL;
   1716
   1717	if (to_multiplier < 10 || to_multiplier > 3200)
   1718		return -EINVAL;
   1719
   1720	if (max >= to_multiplier * 8)
   1721		return -EINVAL;
   1722
   1723	max_latency = (to_multiplier * 4 / max) - 1;
   1724	if (latency > 499 || latency > max_latency)
   1725		return -EINVAL;
   1726
   1727	return 0;
   1728}
   1729
   1730int hci_register_cb(struct hci_cb *hcb);
   1731int hci_unregister_cb(struct hci_cb *hcb);
   1732
   1733int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
   1734		   const void *param);
   1735
   1736int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
   1737		 const void *param);
   1738void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
   1739void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
   1740
   1741void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
   1742
   1743u32 hci_conn_get_phy(struct hci_conn *conn);
   1744
   1745/* ----- HCI Sockets ----- */
   1746void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
   1747void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
   1748			 int flag, struct sock *skip_sk);
   1749void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
   1750void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
   1751				 void *data, u16 data_len, ktime_t tstamp,
   1752				 int flag, struct sock *skip_sk);
   1753
   1754void hci_sock_dev_event(struct hci_dev *hdev, int event);
   1755
   1756#define HCI_MGMT_VAR_LEN	BIT(0)
   1757#define HCI_MGMT_NO_HDEV	BIT(1)
   1758#define HCI_MGMT_UNTRUSTED	BIT(2)
   1759#define HCI_MGMT_UNCONFIGURED	BIT(3)
   1760#define HCI_MGMT_HDEV_OPTIONAL	BIT(4)
   1761
   1762struct hci_mgmt_handler {
   1763	int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
   1764		     u16 data_len);
   1765	size_t data_len;
   1766	unsigned long flags;
   1767};
   1768
   1769struct hci_mgmt_chan {
   1770	struct list_head list;
   1771	unsigned short channel;
   1772	size_t handler_count;
   1773	const struct hci_mgmt_handler *handlers;
   1774	void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
   1775};
   1776
   1777int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
   1778void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
   1779
   1780/* Management interface */
   1781#define DISCOV_TYPE_BREDR		(BIT(BDADDR_BREDR))
   1782#define DISCOV_TYPE_LE			(BIT(BDADDR_LE_PUBLIC) | \
   1783					 BIT(BDADDR_LE_RANDOM))
   1784#define DISCOV_TYPE_INTERLEAVED		(BIT(BDADDR_BREDR) | \
   1785					 BIT(BDADDR_LE_PUBLIC) | \
   1786					 BIT(BDADDR_LE_RANDOM))
   1787
   1788/* These LE scan and inquiry parameters were chosen according to LE General
   1789 * Discovery Procedure specification.
   1790 */
   1791#define DISCOV_LE_SCAN_WIN		0x12
   1792#define DISCOV_LE_SCAN_INT		0x12
   1793#define DISCOV_LE_TIMEOUT		10240	/* msec */
   1794#define DISCOV_INTERLEAVED_TIMEOUT	5120	/* msec */
   1795#define DISCOV_INTERLEAVED_INQUIRY_LEN	0x04
   1796#define DISCOV_BREDR_INQUIRY_LEN	0x08
   1797#define DISCOV_LE_RESTART_DELAY		msecs_to_jiffies(200)	/* msec */
   1798#define DISCOV_LE_FAST_ADV_INT_MIN	0x00A0	/* 100 msec */
   1799#define DISCOV_LE_FAST_ADV_INT_MAX	0x00F0	/* 150 msec */
   1800
   1801#define NAME_RESOLVE_DURATION		msecs_to_jiffies(10240)	/* 10.24 sec */
   1802
   1803void mgmt_fill_version_info(void *ver);
   1804int mgmt_new_settings(struct hci_dev *hdev);
   1805void mgmt_index_added(struct hci_dev *hdev);
   1806void mgmt_index_removed(struct hci_dev *hdev);
   1807void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
   1808void mgmt_power_on(struct hci_dev *hdev, int err);
   1809void __mgmt_power_off(struct hci_dev *hdev);
   1810void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
   1811		       bool persistent);
   1812void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
   1813			   u8 *name, u8 name_len);
   1814void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1815			      u8 link_type, u8 addr_type, u8 reason,
   1816			      bool mgmt_connected);
   1817void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1818			    u8 link_type, u8 addr_type, u8 status);
   1819void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
   1820			 u8 addr_type, u8 status);
   1821void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
   1822void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1823				  u8 status);
   1824void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1825				      u8 status);
   1826int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1827			      u8 link_type, u8 addr_type, u32 value,
   1828			      u8 confirm_hint);
   1829int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1830				     u8 link_type, u8 addr_type, u8 status);
   1831int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1832					 u8 link_type, u8 addr_type, u8 status);
   1833int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1834			      u8 link_type, u8 addr_type);
   1835int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1836				     u8 link_type, u8 addr_type, u8 status);
   1837int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1838					 u8 link_type, u8 addr_type, u8 status);
   1839int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1840			     u8 link_type, u8 addr_type, u32 passkey,
   1841			     u8 entered);
   1842void mgmt_auth_failed(struct hci_conn *conn, u8 status);
   1843void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
   1844void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
   1845				    u8 status);
   1846void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
   1847void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
   1848void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
   1849void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
   1850		       u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
   1851		       u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
   1852void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
   1853		      u8 addr_type, s8 rssi, u8 *name, u8 name_len);
   1854void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
   1855void mgmt_suspending(struct hci_dev *hdev, u8 state);
   1856void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
   1857		   u8 addr_type);
   1858bool mgmt_powering_down(struct hci_dev *hdev);
   1859void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
   1860void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
   1861void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
   1862		   bool persistent);
   1863void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1864			 u8 bdaddr_type, u8 store_hint, u16 min_interval,
   1865			 u16 max_interval, u16 latency, u16 timeout);
   1866void mgmt_smp_complete(struct hci_conn *conn, bool complete);
   1867bool mgmt_get_connectable(struct hci_dev *hdev);
   1868u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
   1869void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
   1870			    u8 instance);
   1871void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
   1872			      u8 instance);
   1873void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
   1874int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
   1875int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
   1876int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
   1877void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
   1878				  bdaddr_t *bdaddr, u8 addr_type);
   1879
   1880u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
   1881		      u16 to_multiplier);
   1882void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
   1883		      __u8 ltk[16], __u8 key_size);
   1884
   1885void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
   1886			       u8 *bdaddr_type);
   1887
   1888#define SCO_AIRMODE_MASK       0x0003
   1889#define SCO_AIRMODE_CVSD       0x0000
   1890#define SCO_AIRMODE_TRANSP     0x0003
   1891
   1892#define LOCAL_CODEC_ACL_MASK	BIT(0)
   1893#define LOCAL_CODEC_SCO_MASK	BIT(1)
   1894
   1895#define TRANSPORT_TYPE_MAX	0x04
   1896
   1897#endif /* __HCI_CORE_H */