11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds BlueZ - Bluetooth protocol stack for Linux 31da177e4SLinus Torvalds Copyright (C) 2000-2001 Qualcomm Incorporated 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds This program is free software; you can redistribute it and/or modify 81da177e4SLinus Torvalds it under the terms of the GNU General Public License version 2 as 91da177e4SLinus Torvalds published by the Free Software Foundation; 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 121da177e4SLinus Torvalds OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 131da177e4SLinus Torvalds FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 141da177e4SLinus Torvalds IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 151da177e4SLinus Torvalds CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 161da177e4SLinus Torvalds WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 171da177e4SLinus Torvalds ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 181da177e4SLinus Torvalds OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 191da177e4SLinus Torvalds 201da177e4SLinus Torvalds ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 211da177e4SLinus Torvalds COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 221da177e4SLinus Torvalds SOFTWARE IS DISCLAIMED. 231da177e4SLinus Torvalds */ 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #ifndef __BLUETOOTH_H 261da177e4SLinus Torvalds #define __BLUETOOTH_H 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #include <linux/poll.h> 291da177e4SLinus Torvalds #include <net/sock.h> 30256a06c8SMasatake YAMATO #include <linux/seq_file.h> 311da177e4SLinus Torvalds 329e8305b3SMarcel Holtmann #define BT_SUBSYS_VERSION 2 334037a774SMarcel Holtmann #define BT_SUBSYS_REVISION 22 34dd31506dSMarcel Holtmann 351da177e4SLinus Torvalds #ifndef AF_BLUETOOTH 361da177e4SLinus Torvalds #define AF_BLUETOOTH 31 371da177e4SLinus Torvalds #define PF_BLUETOOTH AF_BLUETOOTH 381da177e4SLinus Torvalds #endif 391da177e4SLinus Torvalds 40d095c1ebSAndrei Emeltchenko /* Bluetooth versions */ 41d095c1ebSAndrei Emeltchenko #define BLUETOOTH_VER_1_1 1 42d095c1ebSAndrei Emeltchenko #define BLUETOOTH_VER_1_2 2 43d095c1ebSAndrei Emeltchenko #define BLUETOOTH_VER_2_0 3 44cde1a8a9SIsmael Ferreras Morezuelas #define BLUETOOTH_VER_2_1 4 45cde1a8a9SIsmael Ferreras Morezuelas #define BLUETOOTH_VER_4_0 6 46d095c1ebSAndrei Emeltchenko 471da177e4SLinus Torvalds /* Reserv for core and drivers use */ 481da177e4SLinus Torvalds #define BT_SKB_RESERVE 8 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds #define BTPROTO_L2CAP 0 511da177e4SLinus Torvalds #define BTPROTO_HCI 1 521da177e4SLinus Torvalds #define BTPROTO_SCO 2 531da177e4SLinus Torvalds #define BTPROTO_RFCOMM 3 541da177e4SLinus Torvalds #define BTPROTO_BNEP 4 551da177e4SLinus Torvalds #define BTPROTO_CMTP 5 561da177e4SLinus Torvalds #define BTPROTO_HIDP 6 571da177e4SLinus Torvalds #define BTPROTO_AVDTP 7 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds #define SOL_HCI 0 601da177e4SLinus Torvalds #define SOL_L2CAP 6 611da177e4SLinus Torvalds #define SOL_SCO 17 621da177e4SLinus Torvalds #define SOL_RFCOMM 18 631da177e4SLinus Torvalds 648c1b2355SMarcel Holtmann #define BT_SECURITY 4 658c1b2355SMarcel Holtmann struct bt_security { 668c1b2355SMarcel Holtmann __u8 level; 678f360119SVinicius Costa Gomes __u8 key_size; 688c1b2355SMarcel Holtmann }; 698c1b2355SMarcel Holtmann #define BT_SECURITY_SDP 0 708c1b2355SMarcel Holtmann #define BT_SECURITY_LOW 1 718c1b2355SMarcel Holtmann #define BT_SECURITY_MEDIUM 2 728c1b2355SMarcel Holtmann #define BT_SECURITY_HIGH 3 737b5a9241SMarcel Holtmann #define BT_SECURITY_FIPS 4 748c1b2355SMarcel Holtmann 75c4f912e1SMarcel Holtmann #define BT_DEFER_SETUP 7 76c4f912e1SMarcel Holtmann 77e702112fSAndrei Emeltchenko #define BT_FLUSHABLE 8 78e702112fSAndrei Emeltchenko 79e702112fSAndrei Emeltchenko #define BT_FLUSHABLE_OFF 0 80e702112fSAndrei Emeltchenko #define BT_FLUSHABLE_ON 1 81e702112fSAndrei Emeltchenko 8214b12d0bSJaikumar Ganesh #define BT_POWER 9 8314b12d0bSJaikumar Ganesh struct bt_power { 8414b12d0bSJaikumar Ganesh __u8 force_active; 8514b12d0bSJaikumar Ganesh }; 8614b12d0bSJaikumar Ganesh #define BT_POWER_FORCE_ACTIVE_OFF 0 8714b12d0bSJaikumar Ganesh #define BT_POWER_FORCE_ACTIVE_ON 1 8814b12d0bSJaikumar Ganesh 89c14968b0SMat Martineau #define BT_CHANNEL_POLICY 10 90c14968b0SMat Martineau 91c14968b0SMat Martineau /* BR/EDR only (default policy) 92c14968b0SMat Martineau * AMP controllers cannot be used. 93c14968b0SMat Martineau * Channel move requests from the remote device are denied. 94c14968b0SMat Martineau * If the L2CAP channel is currently using AMP, move the channel to BR/EDR. 95c14968b0SMat Martineau */ 96c14968b0SMat Martineau #define BT_CHANNEL_POLICY_BREDR_ONLY 0 97c14968b0SMat Martineau 98c14968b0SMat Martineau /* BR/EDR Preferred 99c14968b0SMat Martineau * Allow use of AMP controllers. 100c14968b0SMat Martineau * If the L2CAP channel is currently on AMP, move it to BR/EDR. 101c14968b0SMat Martineau * Channel move requests from the remote device are allowed. 102c14968b0SMat Martineau */ 103c14968b0SMat Martineau #define BT_CHANNEL_POLICY_BREDR_PREFERRED 1 104c14968b0SMat Martineau 105c14968b0SMat Martineau /* AMP Preferred 106c14968b0SMat Martineau * Allow use of AMP controllers 107c14968b0SMat Martineau * If the L2CAP channel is currently on BR/EDR and AMP controller 108c14968b0SMat Martineau * resources are available, initiate a channel move to AMP. 109c14968b0SMat Martineau * Channel move requests from the remote device are allowed. 110c14968b0SMat Martineau * If the L2CAP socket has not been connected yet, try to create 111c14968b0SMat Martineau * and configure the channel directly on an AMP controller rather 112c14968b0SMat Martineau * than BR/EDR. 113c14968b0SMat Martineau */ 114c14968b0SMat Martineau #define BT_CHANNEL_POLICY_AMP_PREFERRED 2 115c14968b0SMat Martineau 116ad10b1a4SFrédéric Dalleau #define BT_VOICE 11 117ad10b1a4SFrédéric Dalleau struct bt_voice { 118ad10b1a4SFrédéric Dalleau __u16 setting; 119ad10b1a4SFrédéric Dalleau }; 120ad10b1a4SFrédéric Dalleau 121ad10b1a4SFrédéric Dalleau #define BT_VOICE_TRANSPARENT 0x0003 122ad10b1a4SFrédéric Dalleau #define BT_VOICE_CVSD_16BIT 0x0060 123ad10b1a4SFrédéric Dalleau 1241f435424SJohan Hedberg #define BT_SNDMTU 12 1251f435424SJohan Hedberg #define BT_RCVMTU 13 126eab2404bSLuiz Augusto von Dentz #define BT_PHY 14 127eab2404bSLuiz Augusto von Dentz 128eab2404bSLuiz Augusto von Dentz #define BT_PHY_BR_1M_1SLOT 0x00000001 129eab2404bSLuiz Augusto von Dentz #define BT_PHY_BR_1M_3SLOT 0x00000002 130eab2404bSLuiz Augusto von Dentz #define BT_PHY_BR_1M_5SLOT 0x00000004 131eab2404bSLuiz Augusto von Dentz #define BT_PHY_EDR_2M_1SLOT 0x00000008 132eab2404bSLuiz Augusto von Dentz #define BT_PHY_EDR_2M_3SLOT 0x00000010 133eab2404bSLuiz Augusto von Dentz #define BT_PHY_EDR_2M_5SLOT 0x00000020 134eab2404bSLuiz Augusto von Dentz #define BT_PHY_EDR_3M_1SLOT 0x00000040 135eab2404bSLuiz Augusto von Dentz #define BT_PHY_EDR_3M_3SLOT 0x00000080 136eab2404bSLuiz Augusto von Dentz #define BT_PHY_EDR_3M_5SLOT 0x00000100 137eab2404bSLuiz Augusto von Dentz #define BT_PHY_LE_1M_TX 0x00000200 138eab2404bSLuiz Augusto von Dentz #define BT_PHY_LE_1M_RX 0x00000400 139eab2404bSLuiz Augusto von Dentz #define BT_PHY_LE_2M_TX 0x00000800 140eab2404bSLuiz Augusto von Dentz #define BT_PHY_LE_2M_RX 0x00001000 141eab2404bSLuiz Augusto von Dentz #define BT_PHY_LE_CODED_TX 0x00002000 142eab2404bSLuiz Augusto von Dentz #define BT_PHY_LE_CODED_RX 0x00004000 1431f435424SJohan Hedberg 1443ee7b7cdSLuiz Augusto von Dentz #define BT_MODE 15 1453ee7b7cdSLuiz Augusto von Dentz 1463ee7b7cdSLuiz Augusto von Dentz #define BT_MODE_BASIC 0x00 1473ee7b7cdSLuiz Augusto von Dentz #define BT_MODE_ERTM 0x01 1483ee7b7cdSLuiz Augusto von Dentz #define BT_MODE_STREAMING 0x02 1493ee7b7cdSLuiz Augusto von Dentz #define BT_MODE_LE_FLOWCTL 0x03 1503ee7b7cdSLuiz Augusto von Dentz #define BT_MODE_EXT_FLOWCTL 0x04 1513ee7b7cdSLuiz Augusto von Dentz 15200398e1dSAlain Michaud #define BT_PKT_STATUS 16 15300398e1dSAlain Michaud 15400398e1dSAlain Michaud #define BT_SCM_PKT_STATUS 0x03 15500398e1dSAlain Michaud 156248733e8SKiran K #define BT_CODEC 19 157248733e8SKiran K 158248733e8SKiran K struct bt_codec_caps { 159248733e8SKiran K __u8 len; 160248733e8SKiran K __u8 data[]; 161248733e8SKiran K } __packed; 162248733e8SKiran K 163248733e8SKiran K struct bt_codec { 164248733e8SKiran K __u8 id; 165248733e8SKiran K __u16 cid; 166248733e8SKiran K __u16 vid; 167248733e8SKiran K __u8 data_path; 168248733e8SKiran K __u8 num_caps; 169248733e8SKiran K } __packed; 170248733e8SKiran K 171248733e8SKiran K struct bt_codecs { 172248733e8SKiran K __u8 num_codecs; 173248733e8SKiran K struct bt_codec codecs[]; 174248733e8SKiran K } __packed; 175248733e8SKiran K 176*f6873401SKiran K #define BT_CODEC_CVSD 0x02 177*f6873401SKiran K 1783ed7003eSJoe Perches __printf(1, 2) 1792b0bf6c8SJoe Perches void bt_info(const char *fmt, ...); 1803ed7003eSJoe Perches __printf(1, 2) 181594b31eaSFrederic Danis void bt_warn(const char *fmt, ...); 182594b31eaSFrederic Danis __printf(1, 2) 1832b0bf6c8SJoe Perches void bt_err(const char *fmt, ...); 184e625e50cSMarcel Holtmann #if IS_ENABLED(CONFIG_BT_FEATURE_DEBUG) 185e625e50cSMarcel Holtmann void bt_dbg_set(bool enable); 186e625e50cSMarcel Holtmann bool bt_dbg_get(void); 187e625e50cSMarcel Holtmann __printf(1, 2) 188e625e50cSMarcel Holtmann void bt_dbg(const char *fmt, ...); 189e625e50cSMarcel Holtmann #endif 190e781b7f7SSzymon Janc __printf(1, 2) 19136278a5dSAlain Michaud void bt_warn_ratelimited(const char *fmt, ...); 19236278a5dSAlain Michaud __printf(1, 2) 193e781b7f7SSzymon Janc void bt_err_ratelimited(const char *fmt, ...); 194e1447d8dSJoe Perches 1953ed7003eSJoe Perches #define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__) 196594b31eaSFrederic Danis #define BT_WARN(fmt, ...) bt_warn(fmt "\n", ##__VA_ARGS__) 1973ed7003eSJoe Perches #define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__) 198e625e50cSMarcel Holtmann 199e625e50cSMarcel Holtmann #if IS_ENABLED(CONFIG_BT_FEATURE_DEBUG) 200e625e50cSMarcel Holtmann #define BT_DBG(fmt, ...) bt_dbg(fmt "\n", ##__VA_ARGS__) 201e625e50cSMarcel Holtmann #else 2023ed7003eSJoe Perches #define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__) 203e625e50cSMarcel Holtmann #endif 2041da177e4SLinus Torvalds 2056f558b70SLoic Poulain #define bt_dev_info(hdev, fmt, ...) \ 2066f558b70SLoic Poulain BT_INFO("%s: " fmt, (hdev)->name, ##__VA_ARGS__) 207594b31eaSFrederic Danis #define bt_dev_warn(hdev, fmt, ...) \ 208594b31eaSFrederic Danis BT_WARN("%s: " fmt, (hdev)->name, ##__VA_ARGS__) 2096f558b70SLoic Poulain #define bt_dev_err(hdev, fmt, ...) \ 2106f558b70SLoic Poulain BT_ERR("%s: " fmt, (hdev)->name, ##__VA_ARGS__) 2116f558b70SLoic Poulain #define bt_dev_dbg(hdev, fmt, ...) \ 2126f558b70SLoic Poulain BT_DBG("%s: " fmt, (hdev)->name, ##__VA_ARGS__) 2136f558b70SLoic Poulain 21436278a5dSAlain Michaud #define bt_dev_warn_ratelimited(hdev, fmt, ...) \ 21536278a5dSAlain Michaud bt_warn_ratelimited("%s: " fmt, (hdev)->name, ##__VA_ARGS__) 2162064ee33SMarcel Holtmann #define bt_dev_err_ratelimited(hdev, fmt, ...) \ 217657cc646SMarcel Holtmann bt_err_ratelimited("%s: " fmt, (hdev)->name, ##__VA_ARGS__) 2182064ee33SMarcel Holtmann 2191da177e4SLinus Torvalds /* Connection and socket states */ 2201da177e4SLinus Torvalds enum { 2211da177e4SLinus Torvalds BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */ 2221da177e4SLinus Torvalds BT_OPEN, 2231da177e4SLinus Torvalds BT_BOUND, 2241da177e4SLinus Torvalds BT_LISTEN, 2251da177e4SLinus Torvalds BT_CONNECT, 2261da177e4SLinus Torvalds BT_CONNECT2, 2271da177e4SLinus Torvalds BT_CONFIG, 2281da177e4SLinus Torvalds BT_DISCONN, 2291da177e4SLinus Torvalds BT_CLOSED 2301da177e4SLinus Torvalds }; 2311da177e4SLinus Torvalds 23220d1803aSAndrei Emeltchenko /* If unused will be removed by compiler */ 23320d1803aSAndrei Emeltchenko static inline const char *state_to_string(int state) 23420d1803aSAndrei Emeltchenko { 23520d1803aSAndrei Emeltchenko switch (state) { 23620d1803aSAndrei Emeltchenko case BT_CONNECTED: 23720d1803aSAndrei Emeltchenko return "BT_CONNECTED"; 23820d1803aSAndrei Emeltchenko case BT_OPEN: 23920d1803aSAndrei Emeltchenko return "BT_OPEN"; 24020d1803aSAndrei Emeltchenko case BT_BOUND: 24120d1803aSAndrei Emeltchenko return "BT_BOUND"; 24220d1803aSAndrei Emeltchenko case BT_LISTEN: 24320d1803aSAndrei Emeltchenko return "BT_LISTEN"; 24420d1803aSAndrei Emeltchenko case BT_CONNECT: 24520d1803aSAndrei Emeltchenko return "BT_CONNECT"; 24620d1803aSAndrei Emeltchenko case BT_CONNECT2: 24720d1803aSAndrei Emeltchenko return "BT_CONNECT2"; 24820d1803aSAndrei Emeltchenko case BT_CONFIG: 24920d1803aSAndrei Emeltchenko return "BT_CONFIG"; 25020d1803aSAndrei Emeltchenko case BT_DISCONN: 25120d1803aSAndrei Emeltchenko return "BT_DISCONN"; 25220d1803aSAndrei Emeltchenko case BT_CLOSED: 25320d1803aSAndrei Emeltchenko return "BT_CLOSED"; 25420d1803aSAndrei Emeltchenko } 25520d1803aSAndrei Emeltchenko 25620d1803aSAndrei Emeltchenko return "invalid state"; 25720d1803aSAndrei Emeltchenko } 25820d1803aSAndrei Emeltchenko 2591da177e4SLinus Torvalds /* BD Address */ 2601da177e4SLinus Torvalds typedef struct { 2611da177e4SLinus Torvalds __u8 b[6]; 26266c853ccSGustavo F. Padovan } __packed bdaddr_t; 2631da177e4SLinus Torvalds 264591f47f3SAndre Guedes /* BD Address type */ 265591f47f3SAndre Guedes #define BDADDR_BREDR 0x00 266591f47f3SAndre Guedes #define BDADDR_LE_PUBLIC 0x01 267591f47f3SAndre Guedes #define BDADDR_LE_RANDOM 0x02 268591f47f3SAndre Guedes 26921fcf572SPavel Machek static inline bool bdaddr_type_is_valid(u8 type) 270679efe2bSJohan Hedberg { 271679efe2bSJohan Hedberg switch (type) { 272679efe2bSJohan Hedberg case BDADDR_BREDR: 273679efe2bSJohan Hedberg case BDADDR_LE_PUBLIC: 274679efe2bSJohan Hedberg case BDADDR_LE_RANDOM: 275679efe2bSJohan Hedberg return true; 276679efe2bSJohan Hedberg } 277679efe2bSJohan Hedberg 278679efe2bSJohan Hedberg return false; 279679efe2bSJohan Hedberg } 280679efe2bSJohan Hedberg 28121fcf572SPavel Machek static inline bool bdaddr_type_is_le(u8 type) 282679efe2bSJohan Hedberg { 283679efe2bSJohan Hedberg switch (type) { 284679efe2bSJohan Hedberg case BDADDR_LE_PUBLIC: 285679efe2bSJohan Hedberg case BDADDR_LE_RANDOM: 286679efe2bSJohan Hedberg return true; 287679efe2bSJohan Hedberg } 288679efe2bSJohan Hedberg 289679efe2bSJohan Hedberg return false; 290679efe2bSJohan Hedberg } 291679efe2bSJohan Hedberg 2921da177e4SLinus Torvalds #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}}) 293a59ac2f7SMarcel Holtmann #define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}}) 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds /* Copy, swap, convert BD Address */ 296f53c20e9SDavid Herrmann static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2) 2971da177e4SLinus Torvalds { 2981da177e4SLinus Torvalds return memcmp(ba1, ba2, sizeof(bdaddr_t)); 2991da177e4SLinus Torvalds } 300f53c20e9SDavid Herrmann static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src) 3011da177e4SLinus Torvalds { 3021da177e4SLinus Torvalds memcpy(dst, src, sizeof(bdaddr_t)); 3031da177e4SLinus Torvalds } 3041da177e4SLinus Torvalds 30565bce462SLoic Poulain void baswap(bdaddr_t *dst, const bdaddr_t *src); 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds /* Common socket structures and functions */ 3081da177e4SLinus Torvalds 3091da177e4SLinus Torvalds #define bt_sk(__sk) ((struct bt_sock *) __sk) 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds struct bt_sock { 3121da177e4SLinus Torvalds struct sock sk; 3131da177e4SLinus Torvalds struct list_head accept_q; 3141da177e4SLinus Torvalds struct sock *parent; 315c5daa683SGustavo Padovan unsigned long flags; 316d9763698SMarcel Holtmann void (*skb_msg_name)(struct sk_buff *, void *, int *); 31700398e1dSAlain Michaud void (*skb_put_cmsg)(struct sk_buff *, struct msghdr *, struct sock *); 318c5daa683SGustavo Padovan }; 319c5daa683SGustavo Padovan 320c5daa683SGustavo Padovan enum { 321c5daa683SGustavo Padovan BT_SK_DEFER_SETUP, 322c5daa683SGustavo Padovan BT_SK_SUSPEND, 3231da177e4SLinus Torvalds }; 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds struct bt_sock_list { 3261da177e4SLinus Torvalds struct hlist_head head; 3271da177e4SLinus Torvalds rwlock_t lock; 328256a06c8SMasatake YAMATO #ifdef CONFIG_PROC_FS 329256a06c8SMasatake YAMATO int (* custom_seq_show)(struct seq_file *, void *); 330256a06c8SMasatake YAMATO #endif 3311da177e4SLinus Torvalds }; 3321da177e4SLinus Torvalds 333ec1b4cf7SStephen Hemminger int bt_sock_register(int proto, const struct net_proto_family *ops); 334be9f97f0SDavid Herrmann void bt_sock_unregister(int proto); 3351da177e4SLinus Torvalds void bt_sock_link(struct bt_sock_list *l, struct sock *s); 3361da177e4SLinus Torvalds void bt_sock_unlink(struct bt_sock_list *l, struct sock *s); 3371b784140SYing Xue int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, 3381b784140SYing Xue int flags); 3391b784140SYing Xue int bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg, 3401b784140SYing Xue size_t len, int flags); 341a11e1d43SLinus Torvalds __poll_t bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait); 3423241ad82SMarcel Holtmann int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); 3431da177e4SLinus Torvalds int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo); 344e793dcf0SJohan Hedberg int bt_sock_wait_ready(struct sock *sk, unsigned long flags); 3451da177e4SLinus Torvalds 346c4f5627fSMatthias Kaehlcke void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh); 3471da177e4SLinus Torvalds void bt_accept_unlink(struct sock *sk); 3481da177e4SLinus Torvalds struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock); 3491da177e4SLinus Torvalds 3501da177e4SLinus Torvalds /* Skb helpers */ 35100e3112cSMat Martineau struct l2cap_ctrl { 35221fcf572SPavel Machek u8 sframe:1, 35300e3112cSMat Martineau poll:1, 35400e3112cSMat Martineau final:1, 35500e3112cSMat Martineau fcs:1, 35600e3112cSMat Martineau sar:2, 35700e3112cSMat Martineau super:2; 35821fcf572SPavel Machek 35921fcf572SPavel Machek u16 reqseq; 36021fcf572SPavel Machek u16 txseq; 36121fcf572SPavel Machek u8 retries; 362a4368ff3SJohan Hedberg __le16 psm; 363a4368ff3SJohan Hedberg bdaddr_t bdaddr; 364a4368ff3SJohan Hedberg struct l2cap_chan *chan; 36500e3112cSMat Martineau }; 36600e3112cSMat Martineau 36700398e1dSAlain Michaud struct sco_ctrl { 36800398e1dSAlain Michaud u8 pkt_status; 36900398e1dSAlain Michaud }; 37000398e1dSAlain Michaud 3713119ae95SJohan Hedberg struct hci_dev; 3723119ae95SJohan Hedberg 3731904a853SMarcel Holtmann typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status, u16 opcode); 374e6214487SJohan Hedberg typedef void (*hci_req_complete_skb_t)(struct hci_dev *hdev, u8 status, 375e6214487SJohan Hedberg u16 opcode, struct sk_buff *skb); 3763119ae95SJohan Hedberg 37744d27137SJohan Hedberg #define HCI_REQ_START BIT(0) 37844d27137SJohan Hedberg #define HCI_REQ_SKB BIT(1) 37944d27137SJohan Hedberg 380242c0ebdSMarcel Holtmann struct hci_ctrl { 38121fcf572SPavel Machek u16 opcode; 38244d27137SJohan Hedberg u8 req_flags; 383242c0ebdSMarcel Holtmann u8 req_event; 38444d27137SJohan Hedberg union { 385242c0ebdSMarcel Holtmann hci_req_complete_t req_complete; 386242c0ebdSMarcel Holtmann hci_req_complete_skb_t req_complete_skb; 387db6e3e8dSJohan Hedberg }; 38844d27137SJohan Hedberg }; 389db6e3e8dSJohan Hedberg 3901da177e4SLinus Torvalds struct bt_skb_cb { 39121fcf572SPavel Machek u8 pkt_type; 39221fcf572SPavel Machek u8 force_active; 39321fcf572SPavel Machek u16 expect; 39421fcf572SPavel Machek u8 incoming:1; 395db6e3e8dSJohan Hedberg union { 396a4368ff3SJohan Hedberg struct l2cap_ctrl l2cap; 39700398e1dSAlain Michaud struct sco_ctrl sco; 398242c0ebdSMarcel Holtmann struct hci_ctrl hci; 399db6e3e8dSJohan Hedberg }; 4001da177e4SLinus Torvalds }; 4011c2acffbSGustavo F. Padovan #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb)) 4021da177e4SLinus Torvalds 403f5c4a42aSMarcel Holtmann #define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type 404f5c4a42aSMarcel Holtmann #define hci_skb_expect(skb) bt_cb((skb))->expect 405f5c4a42aSMarcel Holtmann #define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode 406f5c4a42aSMarcel Holtmann 407dd0fc66fSAl Viro static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how) 4081da177e4SLinus Torvalds { 4091da177e4SLinus Torvalds struct sk_buff *skb; 4101da177e4SLinus Torvalds 411c3c7ea65SGustavo Padovan skb = alloc_skb(len + BT_SKB_RESERVE, how); 4125fcc86bdSJohan Hedberg if (skb) 4131da177e4SLinus Torvalds skb_reserve(skb, BT_SKB_RESERVE); 4141da177e4SLinus Torvalds return skb; 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 4175a9d0a3fSWaldemar Rymarkiewicz static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, 4185a9d0a3fSWaldemar Rymarkiewicz unsigned long len, int nb, int *err) 4191da177e4SLinus Torvalds { 4201da177e4SLinus Torvalds struct sk_buff *skb; 4211da177e4SLinus Torvalds 422c3c7ea65SGustavo Padovan skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err); 4235fcc86bdSJohan Hedberg if (skb) 4241da177e4SLinus Torvalds skb_reserve(skb, BT_SKB_RESERVE); 425e454c844SGustavo F. Padovan 426e454c844SGustavo F. Padovan if (!skb && *err) 427e454c844SGustavo F. Padovan return NULL; 428e454c844SGustavo F. Padovan 429e454c844SGustavo F. Padovan *err = sock_error(sk); 430e454c844SGustavo F. Padovan if (*err) 431e454c844SGustavo F. Padovan goto out; 432e454c844SGustavo F. Padovan 433e454c844SGustavo F. Padovan if (sk->sk_shutdown) { 434e454c844SGustavo F. Padovan *err = -ECONNRESET; 435e454c844SGustavo F. Padovan goto out; 436e454c844SGustavo F. Padovan } 4371da177e4SLinus Torvalds 4381da177e4SLinus Torvalds return skb; 439e454c844SGustavo F. Padovan 440e454c844SGustavo F. Padovan out: 441e454c844SGustavo F. Padovan kfree_skb(skb); 442e454c844SGustavo F. Padovan return NULL; 4431da177e4SLinus Torvalds } 4441da177e4SLinus Torvalds 44521fcf572SPavel Machek int bt_to_errno(u16 code); 4461da177e4SLinus Torvalds 4476befc644SMarcel Holtmann void hci_sock_set_flag(struct sock *sk, int nr); 4486befc644SMarcel Holtmann void hci_sock_clear_flag(struct sock *sk, int nr); 449c85be545SMarcel Holtmann int hci_sock_test_flag(struct sock *sk, int nr); 450d0f172b1SJohan Hedberg unsigned short hci_sock_get_channel(struct sock *sk); 45170ecce91SMarcel Holtmann u32 hci_sock_get_cookie(struct sock *sk); 4526befc644SMarcel Holtmann 453e74e58f8SJoe Perches int hci_sock_init(void); 454e74e58f8SJoe Perches void hci_sock_cleanup(void); 4556516455dSMarcel Holtmann 456e74e58f8SJoe Perches int bt_sysfs_init(void); 457e74e58f8SJoe Perches void bt_sysfs_cleanup(void); 4586516455dSMarcel Holtmann 459e74e58f8SJoe Perches int bt_procfs_init(struct net *net, const char *name, 460256a06c8SMasatake YAMATO struct bt_sock_list *sk_list, 461256a06c8SMasatake YAMATO int (*seq_show)(struct seq_file *, void *)); 462e74e58f8SJoe Perches void bt_procfs_cleanup(struct net *net, const char *name); 463256a06c8SMasatake YAMATO 464aef7d97cSMarcel Holtmann extern struct dentry *bt_debugfs; 465be9d1227SMarcel Holtmann 46664274518SGustavo F. Padovan int l2cap_init(void); 46764274518SGustavo F. Padovan void l2cap_exit(void); 46864274518SGustavo F. Padovan 469ff50e8afSArron Wang #if IS_ENABLED(CONFIG_BT_BREDR) 47064274518SGustavo F. Padovan int sco_init(void); 47164274518SGustavo F. Padovan void sco_exit(void); 472ff50e8afSArron Wang #else 473ff50e8afSArron Wang static inline int sco_init(void) 474ff50e8afSArron Wang { 475ff50e8afSArron Wang return 0; 476ff50e8afSArron Wang } 477ff50e8afSArron Wang 478ff50e8afSArron Wang static inline void sco_exit(void) 479ff50e8afSArron Wang { 480ff50e8afSArron Wang } 481ff50e8afSArron Wang #endif 48264274518SGustavo F. Padovan 4836d785aa3SJohan Hedberg int mgmt_init(void); 4846d785aa3SJohan Hedberg void mgmt_exit(void); 4856d785aa3SJohan Hedberg 486d22015aaSOctavian Purdila void bt_sock_reclassify_lock(struct sock *sk, int proto); 487d22015aaSOctavian Purdila 4881da177e4SLinus Torvalds #endif /* __BLUETOOTH_H */ 489