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1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
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 __BLUETOOTH_H
26#define __BLUETOOTH_H
27
28#include <linux/poll.h>
29#include <net/sock.h>
30#include <linux/seq_file.h>
31
32#ifndef AF_BLUETOOTH
33#define AF_BLUETOOTH 31
34#define PF_BLUETOOTH AF_BLUETOOTH
35#endif
36
37/* Bluetooth versions */
38#define BLUETOOTH_VER_1_1 1
39#define BLUETOOTH_VER_1_2 2
40#define BLUETOOTH_VER_2_0 3
41
42/* Reserv for core and drivers use */
43#define BT_SKB_RESERVE 8
44
45#define BTPROTO_L2CAP 0
46#define BTPROTO_HCI 1
47#define BTPROTO_SCO 2
48#define BTPROTO_RFCOMM 3
49#define BTPROTO_BNEP 4
50#define BTPROTO_CMTP 5
51#define BTPROTO_HIDP 6
52#define BTPROTO_AVDTP 7
53
54#define SOL_HCI 0
55#define SOL_L2CAP 6
56#define SOL_SCO 17
57#define SOL_RFCOMM 18
58
59#define BT_SECURITY 4
60struct bt_security {
61 __u8 level;
62 __u8 key_size;
63};
64#define BT_SECURITY_SDP 0
65#define BT_SECURITY_LOW 1
66#define BT_SECURITY_MEDIUM 2
67#define BT_SECURITY_HIGH 3
68#define BT_SECURITY_FIPS 4
69
70#define BT_DEFER_SETUP 7
71
72#define BT_FLUSHABLE 8
73
74#define BT_FLUSHABLE_OFF 0
75#define BT_FLUSHABLE_ON 1
76
77#define BT_POWER 9
78struct bt_power {
79 __u8 force_active;
80};
81#define BT_POWER_FORCE_ACTIVE_OFF 0
82#define BT_POWER_FORCE_ACTIVE_ON 1
83
84#define BT_CHANNEL_POLICY 10
85
86/* BR/EDR only (default policy)
87 * AMP controllers cannot be used.
88 * Channel move requests from the remote device are denied.
89 * If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
90 */
91#define BT_CHANNEL_POLICY_BREDR_ONLY 0
92
93/* BR/EDR Preferred
94 * Allow use of AMP controllers.
95 * If the L2CAP channel is currently on AMP, move it to BR/EDR.
96 * Channel move requests from the remote device are allowed.
97 */
98#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
99
100/* AMP Preferred
101 * Allow use of AMP controllers
102 * If the L2CAP channel is currently on BR/EDR and AMP controller
103 * resources are available, initiate a channel move to AMP.
104 * Channel move requests from the remote device are allowed.
105 * If the L2CAP socket has not been connected yet, try to create
106 * and configure the channel directly on an AMP controller rather
107 * than BR/EDR.
108 */
109#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
110
111#define BT_VOICE 11
112struct bt_voice {
113 __u16 setting;
114};
115
116#define BT_VOICE_TRANSPARENT 0x0003
117#define BT_VOICE_CVSD_16BIT 0x0060
118
119#define BT_SNDMTU 12
120#define BT_RCVMTU 13
121
122__printf(1, 2)
123int bt_info(const char *fmt, ...);
124__printf(1, 2)
125int bt_err(const char *fmt, ...);
126
127#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
128#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
129#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
130
131/* Connection and socket states */
132enum {
133 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
134 BT_OPEN,
135 BT_BOUND,
136 BT_LISTEN,
137 BT_CONNECT,
138 BT_CONNECT2,
139 BT_CONFIG,
140 BT_DISCONN,
141 BT_CLOSED
142};
143
144/* If unused will be removed by compiler */
145static inline const char *state_to_string(int state)
146{
147 switch (state) {
148 case BT_CONNECTED:
149 return "BT_CONNECTED";
150 case BT_OPEN:
151 return "BT_OPEN";
152 case BT_BOUND:
153 return "BT_BOUND";
154 case BT_LISTEN:
155 return "BT_LISTEN";
156 case BT_CONNECT:
157 return "BT_CONNECT";
158 case BT_CONNECT2:
159 return "BT_CONNECT2";
160 case BT_CONFIG:
161 return "BT_CONFIG";
162 case BT_DISCONN:
163 return "BT_DISCONN";
164 case BT_CLOSED:
165 return "BT_CLOSED";
166 }
167
168 return "invalid state";
169}
170
171/* BD Address */
172typedef struct {
173 __u8 b[6];
174} __packed bdaddr_t;
175
176/* BD Address type */
177#define BDADDR_BREDR 0x00
178#define BDADDR_LE_PUBLIC 0x01
179#define BDADDR_LE_RANDOM 0x02
180
181static inline bool bdaddr_type_is_valid(__u8 type)
182{
183 switch (type) {
184 case BDADDR_BREDR:
185 case BDADDR_LE_PUBLIC:
186 case BDADDR_LE_RANDOM:
187 return true;
188 }
189
190 return false;
191}
192
193static inline bool bdaddr_type_is_le(__u8 type)
194{
195 switch (type) {
196 case BDADDR_LE_PUBLIC:
197 case BDADDR_LE_RANDOM:
198 return true;
199 }
200
201 return false;
202}
203
204#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
205#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
206
207/* Copy, swap, convert BD Address */
208static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
209{
210 return memcmp(ba1, ba2, sizeof(bdaddr_t));
211}
212static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
213{
214 memcpy(dst, src, sizeof(bdaddr_t));
215}
216
217void baswap(bdaddr_t *dst, bdaddr_t *src);
218
219/* Common socket structures and functions */
220
221#define bt_sk(__sk) ((struct bt_sock *) __sk)
222
223struct bt_sock {
224 struct sock sk;
225 struct list_head accept_q;
226 struct sock *parent;
227 unsigned long flags;
228 void (*skb_msg_name)(struct sk_buff *, void *, int *);
229};
230
231enum {
232 BT_SK_DEFER_SETUP,
233 BT_SK_SUSPEND,
234};
235
236struct bt_sock_list {
237 struct hlist_head head;
238 rwlock_t lock;
239#ifdef CONFIG_PROC_FS
240 int (* custom_seq_show)(struct seq_file *, void *);
241#endif
242};
243
244int bt_sock_register(int proto, const struct net_proto_family *ops);
245void bt_sock_unregister(int proto);
246void bt_sock_link(struct bt_sock_list *l, struct sock *s);
247void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
248int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
249 struct msghdr *msg, size_t len, int flags);
250int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
251 struct msghdr *msg, size_t len, int flags);
252uint bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
253int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
254int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
255int bt_sock_wait_ready(struct sock *sk, unsigned long flags);
256
257void bt_accept_enqueue(struct sock *parent, struct sock *sk);
258void bt_accept_unlink(struct sock *sk);
259struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
260
261/* Skb helpers */
262struct l2cap_ctrl {
263 unsigned int sframe:1,
264 poll:1,
265 final:1,
266 fcs:1,
267 sar:2,
268 super:2;
269 __u16 reqseq;
270 __u16 txseq;
271 __u8 retries;
272};
273
274struct hci_dev;
275
276typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status);
277
278struct hci_req_ctrl {
279 bool start;
280 u8 event;
281 hci_req_complete_t complete;
282};
283
284struct bt_skb_cb {
285 __u8 pkt_type;
286 __u8 incoming;
287 __u16 expect;
288 __u8 force_active;
289 struct l2cap_chan *chan;
290 struct l2cap_ctrl control;
291 struct hci_req_ctrl req;
292 bdaddr_t bdaddr;
293 __le16 psm;
294};
295#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
296
297static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
298{
299 struct sk_buff *skb;
300
301 skb = alloc_skb(len + BT_SKB_RESERVE, how);
302 if (skb) {
303 skb_reserve(skb, BT_SKB_RESERVE);
304 bt_cb(skb)->incoming = 0;
305 }
306 return skb;
307}
308
309static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
310 unsigned long len, int nb, int *err)
311{
312 struct sk_buff *skb;
313
314 skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
315 if (skb) {
316 skb_reserve(skb, BT_SKB_RESERVE);
317 bt_cb(skb)->incoming = 0;
318 }
319
320 if (!skb && *err)
321 return NULL;
322
323 *err = sock_error(sk);
324 if (*err)
325 goto out;
326
327 if (sk->sk_shutdown) {
328 *err = -ECONNRESET;
329 goto out;
330 }
331
332 return skb;
333
334out:
335 kfree_skb(skb);
336 return NULL;
337}
338
339int bt_to_errno(__u16 code);
340
341int hci_sock_init(void);
342void hci_sock_cleanup(void);
343
344int bt_sysfs_init(void);
345void bt_sysfs_cleanup(void);
346
347int bt_procfs_init(struct net *net, const char *name,
348 struct bt_sock_list *sk_list,
349 int (*seq_show)(struct seq_file *, void *));
350void bt_procfs_cleanup(struct net *net, const char *name);
351
352extern struct dentry *bt_debugfs;
353
354int l2cap_init(void);
355void l2cap_exit(void);
356
357int sco_init(void);
358void sco_exit(void);
359
360void bt_sock_reclassify_lock(struct sock *sk, int proto);
361
362#endif /* __BLUETOOTH_H */
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
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 __BLUETOOTH_H
26#define __BLUETOOTH_H
27
28#include <asm/types.h>
29#include <asm/byteorder.h>
30#include <linux/list.h>
31#include <linux/poll.h>
32#include <net/sock.h>
33
34#ifndef AF_BLUETOOTH
35#define AF_BLUETOOTH 31
36#define PF_BLUETOOTH AF_BLUETOOTH
37#endif
38
39/* Bluetooth versions */
40#define BLUETOOTH_VER_1_1 1
41#define BLUETOOTH_VER_1_2 2
42#define BLUETOOTH_VER_2_0 3
43
44/* Reserv for core and drivers use */
45#define BT_SKB_RESERVE 8
46
47#define BTPROTO_L2CAP 0
48#define BTPROTO_HCI 1
49#define BTPROTO_SCO 2
50#define BTPROTO_RFCOMM 3
51#define BTPROTO_BNEP 4
52#define BTPROTO_CMTP 5
53#define BTPROTO_HIDP 6
54#define BTPROTO_AVDTP 7
55
56#define SOL_HCI 0
57#define SOL_L2CAP 6
58#define SOL_SCO 17
59#define SOL_RFCOMM 18
60
61#define BT_SECURITY 4
62struct bt_security {
63 __u8 level;
64 __u8 key_size;
65};
66#define BT_SECURITY_SDP 0
67#define BT_SECURITY_LOW 1
68#define BT_SECURITY_MEDIUM 2
69#define BT_SECURITY_HIGH 3
70
71#define BT_DEFER_SETUP 7
72
73#define BT_FLUSHABLE 8
74
75#define BT_FLUSHABLE_OFF 0
76#define BT_FLUSHABLE_ON 1
77
78#define BT_POWER 9
79struct bt_power {
80 __u8 force_active;
81};
82#define BT_POWER_FORCE_ACTIVE_OFF 0
83#define BT_POWER_FORCE_ACTIVE_ON 1
84
85#define BT_CHANNEL_POLICY 10
86
87/* BR/EDR only (default policy)
88 * AMP controllers cannot be used.
89 * Channel move requests from the remote device are denied.
90 * If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
91 */
92#define BT_CHANNEL_POLICY_BREDR_ONLY 0
93
94/* BR/EDR Preferred
95 * Allow use of AMP controllers.
96 * If the L2CAP channel is currently on AMP, move it to BR/EDR.
97 * Channel move requests from the remote device are allowed.
98 */
99#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
100
101/* AMP Preferred
102 * Allow use of AMP controllers
103 * If the L2CAP channel is currently on BR/EDR and AMP controller
104 * resources are available, initiate a channel move to AMP.
105 * Channel move requests from the remote device are allowed.
106 * If the L2CAP socket has not been connected yet, try to create
107 * and configure the channel directly on an AMP controller rather
108 * than BR/EDR.
109 */
110#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
111
112__printf(1, 2)
113int bt_info(const char *fmt, ...);
114__printf(1, 2)
115int bt_err(const char *fmt, ...);
116
117#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
118#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
119#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
120
121/* Connection and socket states */
122enum {
123 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
124 BT_OPEN,
125 BT_BOUND,
126 BT_LISTEN,
127 BT_CONNECT,
128 BT_CONNECT2,
129 BT_CONFIG,
130 BT_DISCONN,
131 BT_CLOSED
132};
133
134/* If unused will be removed by compiler */
135static inline const char *state_to_string(int state)
136{
137 switch (state) {
138 case BT_CONNECTED:
139 return "BT_CONNECTED";
140 case BT_OPEN:
141 return "BT_OPEN";
142 case BT_BOUND:
143 return "BT_BOUND";
144 case BT_LISTEN:
145 return "BT_LISTEN";
146 case BT_CONNECT:
147 return "BT_CONNECT";
148 case BT_CONNECT2:
149 return "BT_CONNECT2";
150 case BT_CONFIG:
151 return "BT_CONFIG";
152 case BT_DISCONN:
153 return "BT_DISCONN";
154 case BT_CLOSED:
155 return "BT_CLOSED";
156 }
157
158 return "invalid state";
159}
160
161/* BD Address */
162typedef struct {
163 __u8 b[6];
164} __packed bdaddr_t;
165
166/* BD Address type */
167#define BDADDR_BREDR 0x00
168#define BDADDR_LE_PUBLIC 0x01
169#define BDADDR_LE_RANDOM 0x02
170
171#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
172#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
173
174/* Copy, swap, convert BD Address */
175static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
176{
177 return memcmp(ba1, ba2, sizeof(bdaddr_t));
178}
179static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
180{
181 memcpy(dst, src, sizeof(bdaddr_t));
182}
183
184void baswap(bdaddr_t *dst, bdaddr_t *src);
185char *batostr(bdaddr_t *ba);
186
187/* Common socket structures and functions */
188
189#define bt_sk(__sk) ((struct bt_sock *) __sk)
190
191struct bt_sock {
192 struct sock sk;
193 bdaddr_t src;
194 bdaddr_t dst;
195 struct list_head accept_q;
196 struct sock *parent;
197 unsigned long flags;
198};
199
200enum {
201 BT_SK_DEFER_SETUP,
202 BT_SK_SUSPEND,
203};
204
205struct bt_sock_list {
206 struct hlist_head head;
207 rwlock_t lock;
208};
209
210int bt_sock_register(int proto, const struct net_proto_family *ops);
211int bt_sock_unregister(int proto);
212void bt_sock_link(struct bt_sock_list *l, struct sock *s);
213void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
214int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
215 struct msghdr *msg, size_t len, int flags);
216int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
217 struct msghdr *msg, size_t len, int flags);
218uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
219int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
220int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
221
222void bt_accept_enqueue(struct sock *parent, struct sock *sk);
223void bt_accept_unlink(struct sock *sk);
224struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
225
226/* Skb helpers */
227struct l2cap_ctrl {
228 unsigned int sframe : 1,
229 poll : 1,
230 final : 1,
231 fcs : 1,
232 sar : 2,
233 super : 2;
234 __u16 reqseq;
235 __u16 txseq;
236 __u8 retries;
237};
238
239struct bt_skb_cb {
240 __u8 pkt_type;
241 __u8 incoming;
242 __u16 expect;
243 __u8 force_active;
244 struct l2cap_ctrl control;
245};
246#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
247
248static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
249{
250 struct sk_buff *skb;
251
252 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
253 skb_reserve(skb, BT_SKB_RESERVE);
254 bt_cb(skb)->incoming = 0;
255 }
256 return skb;
257}
258
259static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
260 unsigned long len, int nb, int *err)
261{
262 struct sk_buff *skb;
263
264 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
265 skb_reserve(skb, BT_SKB_RESERVE);
266 bt_cb(skb)->incoming = 0;
267 }
268
269 if (!skb && *err)
270 return NULL;
271
272 *err = sock_error(sk);
273 if (*err)
274 goto out;
275
276 if (sk->sk_shutdown) {
277 *err = -ECONNRESET;
278 goto out;
279 }
280
281 return skb;
282
283out:
284 kfree_skb(skb);
285 return NULL;
286}
287
288int bt_to_errno(__u16 code);
289
290extern int hci_sock_init(void);
291extern void hci_sock_cleanup(void);
292
293extern int bt_sysfs_init(void);
294extern void bt_sysfs_cleanup(void);
295
296extern struct dentry *bt_debugfs;
297
298int l2cap_init(void);
299void l2cap_exit(void);
300
301int sco_init(void);
302void sco_exit(void);
303
304void bt_sock_reclassify_lock(struct sock *sk, int proto);
305
306#endif /* __BLUETOOTH_H */