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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 <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/* Reserv for core and drivers use */
40#define BT_SKB_RESERVE 8
41
42#define BTPROTO_L2CAP 0
43#define BTPROTO_HCI 1
44#define BTPROTO_SCO 2
45#define BTPROTO_RFCOMM 3
46#define BTPROTO_BNEP 4
47#define BTPROTO_CMTP 5
48#define BTPROTO_HIDP 6
49#define BTPROTO_AVDTP 7
50
51#define SOL_HCI 0
52#define SOL_L2CAP 6
53#define SOL_SCO 17
54#define SOL_RFCOMM 18
55
56#define BT_SECURITY 4
57struct bt_security {
58 __u8 level;
59 __u8 key_size;
60};
61#define BT_SECURITY_SDP 0
62#define BT_SECURITY_LOW 1
63#define BT_SECURITY_MEDIUM 2
64#define BT_SECURITY_HIGH 3
65
66#define BT_DEFER_SETUP 7
67
68#define BT_FLUSHABLE 8
69
70#define BT_FLUSHABLE_OFF 0
71#define BT_FLUSHABLE_ON 1
72
73#define BT_POWER 9
74struct bt_power {
75 __u8 force_active;
76};
77#define BT_POWER_FORCE_ACTIVE_OFF 0
78#define BT_POWER_FORCE_ACTIVE_ON 1
79
80__attribute__((format (printf, 2, 3)))
81int bt_printk(const char *level, const char *fmt, ...);
82
83#define BT_INFO(fmt, arg...) bt_printk(KERN_INFO, pr_fmt(fmt), ##arg)
84#define BT_ERR(fmt, arg...) bt_printk(KERN_ERR, pr_fmt(fmt), ##arg)
85#define BT_DBG(fmt, arg...) pr_debug(fmt "\n", ##arg)
86
87/* Connection and socket states */
88enum {
89 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
90 BT_OPEN,
91 BT_BOUND,
92 BT_LISTEN,
93 BT_CONNECT,
94 BT_CONNECT2,
95 BT_CONFIG,
96 BT_DISCONN,
97 BT_CLOSED
98};
99
100/* BD Address */
101typedef struct {
102 __u8 b[6];
103} __packed bdaddr_t;
104
105#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
106#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
107
108/* Copy, swap, convert BD Address */
109static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
110{
111 return memcmp(ba1, ba2, sizeof(bdaddr_t));
112}
113static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
114{
115 memcpy(dst, src, sizeof(bdaddr_t));
116}
117
118void baswap(bdaddr_t *dst, bdaddr_t *src);
119char *batostr(bdaddr_t *ba);
120bdaddr_t *strtoba(char *str);
121
122/* Common socket structures and functions */
123
124#define bt_sk(__sk) ((struct bt_sock *) __sk)
125
126struct bt_sock {
127 struct sock sk;
128 bdaddr_t src;
129 bdaddr_t dst;
130 struct list_head accept_q;
131 struct sock *parent;
132 u32 defer_setup;
133};
134
135struct bt_sock_list {
136 struct hlist_head head;
137 rwlock_t lock;
138};
139
140int bt_sock_register(int proto, const struct net_proto_family *ops);
141int bt_sock_unregister(int proto);
142void bt_sock_link(struct bt_sock_list *l, struct sock *s);
143void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
144int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
145 struct msghdr *msg, size_t len, int flags);
146int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
147 struct msghdr *msg, size_t len, int flags);
148uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
149int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
150int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
151
152void bt_accept_enqueue(struct sock *parent, struct sock *sk);
153void bt_accept_unlink(struct sock *sk);
154struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
155
156/* Skb helpers */
157struct bt_skb_cb {
158 __u8 pkt_type;
159 __u8 incoming;
160 __u16 expect;
161 __u8 tx_seq;
162 __u8 retries;
163 __u8 sar;
164 unsigned short channel;
165 __u8 force_active;
166};
167#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
168
169static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
170{
171 struct sk_buff *skb;
172
173 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
174 skb_reserve(skb, BT_SKB_RESERVE);
175 bt_cb(skb)->incoming = 0;
176 }
177 return skb;
178}
179
180static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
181 unsigned long len, int nb, int *err)
182{
183 struct sk_buff *skb;
184
185 release_sock(sk);
186 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
187 skb_reserve(skb, BT_SKB_RESERVE);
188 bt_cb(skb)->incoming = 0;
189 }
190 lock_sock(sk);
191
192 if (!skb && *err)
193 return NULL;
194
195 *err = sock_error(sk);
196 if (*err)
197 goto out;
198
199 if (sk->sk_shutdown) {
200 *err = -ECONNRESET;
201 goto out;
202 }
203
204 return skb;
205
206out:
207 kfree_skb(skb);
208 return NULL;
209}
210
211int bt_to_errno(__u16 code);
212
213extern int hci_sock_init(void);
214extern void hci_sock_cleanup(void);
215
216extern int bt_sysfs_init(void);
217extern void bt_sysfs_cleanup(void);
218
219extern struct dentry *bt_debugfs;
220
221#ifdef CONFIG_BT_L2CAP
222int l2cap_init(void);
223void l2cap_exit(void);
224#else
225static inline int l2cap_init(void)
226{
227 return 0;
228}
229
230static inline void l2cap_exit(void)
231{
232}
233#endif
234
235#ifdef CONFIG_BT_SCO
236int sco_init(void);
237void sco_exit(void);
238#else
239static inline int sco_init(void)
240{
241 return 0;
242}
243
244static inline void sco_exit(void)
245{
246}
247#endif
248
249#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 */