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1/*
2 RFCOMM implementation for Linux Bluetooth stack (BlueZ)
3 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
4 Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License version 2 as
8 published by the Free Software Foundation;
9
10 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
11 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
12 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
13 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
14 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
15 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18
19 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
20 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
21 SOFTWARE IS DISCLAIMED.
22*/
23
24#ifndef __RFCOMM_H
25#define __RFCOMM_H
26
27#define RFCOMM_PSM 3
28
29#define RFCOMM_CONN_TIMEOUT (HZ * 30)
30#define RFCOMM_DISC_TIMEOUT (HZ * 20)
31#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
32#define RFCOMM_IDLE_TIMEOUT (HZ * 2)
33
34#define RFCOMM_DEFAULT_MTU 127
35#define RFCOMM_DEFAULT_CREDITS 7
36
37#define RFCOMM_MAX_L2CAP_MTU 1013
38#define RFCOMM_MAX_CREDITS 40
39
40#define RFCOMM_SKB_HEAD_RESERVE 8
41#define RFCOMM_SKB_TAIL_RESERVE 2
42#define RFCOMM_SKB_RESERVE (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)
43
44#define RFCOMM_SABM 0x2f
45#define RFCOMM_DISC 0x43
46#define RFCOMM_UA 0x63
47#define RFCOMM_DM 0x0f
48#define RFCOMM_UIH 0xef
49
50#define RFCOMM_TEST 0x08
51#define RFCOMM_FCON 0x28
52#define RFCOMM_FCOFF 0x18
53#define RFCOMM_MSC 0x38
54#define RFCOMM_RPN 0x24
55#define RFCOMM_RLS 0x14
56#define RFCOMM_PN 0x20
57#define RFCOMM_NSC 0x04
58
59#define RFCOMM_V24_FC 0x02
60#define RFCOMM_V24_RTC 0x04
61#define RFCOMM_V24_RTR 0x08
62#define RFCOMM_V24_IC 0x40
63#define RFCOMM_V24_DV 0x80
64
65#define RFCOMM_RPN_BR_2400 0x0
66#define RFCOMM_RPN_BR_4800 0x1
67#define RFCOMM_RPN_BR_7200 0x2
68#define RFCOMM_RPN_BR_9600 0x3
69#define RFCOMM_RPN_BR_19200 0x4
70#define RFCOMM_RPN_BR_38400 0x5
71#define RFCOMM_RPN_BR_57600 0x6
72#define RFCOMM_RPN_BR_115200 0x7
73#define RFCOMM_RPN_BR_230400 0x8
74
75#define RFCOMM_RPN_DATA_5 0x0
76#define RFCOMM_RPN_DATA_6 0x1
77#define RFCOMM_RPN_DATA_7 0x2
78#define RFCOMM_RPN_DATA_8 0x3
79
80#define RFCOMM_RPN_STOP_1 0
81#define RFCOMM_RPN_STOP_15 1
82
83#define RFCOMM_RPN_PARITY_NONE 0x0
84#define RFCOMM_RPN_PARITY_ODD 0x1
85#define RFCOMM_RPN_PARITY_EVEN 0x3
86#define RFCOMM_RPN_PARITY_MARK 0x5
87#define RFCOMM_RPN_PARITY_SPACE 0x7
88
89#define RFCOMM_RPN_FLOW_NONE 0x00
90
91#define RFCOMM_RPN_XON_CHAR 0x11
92#define RFCOMM_RPN_XOFF_CHAR 0x13
93
94#define RFCOMM_RPN_PM_BITRATE 0x0001
95#define RFCOMM_RPN_PM_DATA 0x0002
96#define RFCOMM_RPN_PM_STOP 0x0004
97#define RFCOMM_RPN_PM_PARITY 0x0008
98#define RFCOMM_RPN_PM_PARITY_TYPE 0x0010
99#define RFCOMM_RPN_PM_XON 0x0020
100#define RFCOMM_RPN_PM_XOFF 0x0040
101#define RFCOMM_RPN_PM_FLOW 0x3F00
102
103#define RFCOMM_RPN_PM_ALL 0x3F7F
104
105struct rfcomm_hdr {
106 u8 addr;
107 u8 ctrl;
108 u8 len; /* Actual size can be 2 bytes */
109} __packed;
110
111struct rfcomm_cmd {
112 u8 addr;
113 u8 ctrl;
114 u8 len;
115 u8 fcs;
116} __packed;
117
118struct rfcomm_mcc {
119 u8 type;
120 u8 len;
121} __packed;
122
123struct rfcomm_pn {
124 u8 dlci;
125 u8 flow_ctrl;
126 u8 priority;
127 u8 ack_timer;
128 __le16 mtu;
129 u8 max_retrans;
130 u8 credits;
131} __packed;
132
133struct rfcomm_rpn {
134 u8 dlci;
135 u8 bit_rate;
136 u8 line_settings;
137 u8 flow_ctrl;
138 u8 xon_char;
139 u8 xoff_char;
140 __le16 param_mask;
141} __packed;
142
143struct rfcomm_rls {
144 u8 dlci;
145 u8 status;
146} __packed;
147
148struct rfcomm_msc {
149 u8 dlci;
150 u8 v24_sig;
151} __packed;
152
153/* ---- Core structures, flags etc ---- */
154
155struct rfcomm_session {
156 struct list_head list;
157 struct socket *sock;
158 struct timer_list timer;
159 unsigned long state;
160 unsigned long flags;
161 atomic_t refcnt;
162 int initiator;
163
164 /* Default DLC parameters */
165 int cfc;
166 uint mtu;
167
168 struct list_head dlcs;
169};
170
171struct rfcomm_dlc {
172 struct list_head list;
173 struct rfcomm_session *session;
174 struct sk_buff_head tx_queue;
175 struct timer_list timer;
176
177 spinlock_t lock;
178 unsigned long state;
179 unsigned long flags;
180 atomic_t refcnt;
181 u8 dlci;
182 u8 addr;
183 u8 priority;
184 u8 v24_sig;
185 u8 remote_v24_sig;
186 u8 mscex;
187 u8 out;
188 u8 sec_level;
189 u8 role_switch;
190 u32 defer_setup;
191
192 uint mtu;
193 uint cfc;
194 uint rx_credits;
195 uint tx_credits;
196
197 void *owner;
198
199 void (*data_ready)(struct rfcomm_dlc *d, struct sk_buff *skb);
200 void (*state_change)(struct rfcomm_dlc *d, int err);
201 void (*modem_status)(struct rfcomm_dlc *d, u8 v24_sig);
202};
203
204/* DLC and session flags */
205#define RFCOMM_RX_THROTTLED 0
206#define RFCOMM_TX_THROTTLED 1
207#define RFCOMM_TIMED_OUT 2
208#define RFCOMM_MSC_PENDING 3
209#define RFCOMM_SEC_PENDING 4
210#define RFCOMM_AUTH_PENDING 5
211#define RFCOMM_AUTH_ACCEPT 6
212#define RFCOMM_AUTH_REJECT 7
213#define RFCOMM_DEFER_SETUP 8
214
215/* Scheduling flags and events */
216#define RFCOMM_SCHED_WAKEUP 31
217
218/* MSC exchange flags */
219#define RFCOMM_MSCEX_TX 1
220#define RFCOMM_MSCEX_RX 2
221#define RFCOMM_MSCEX_OK (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
222
223/* CFC states */
224#define RFCOMM_CFC_UNKNOWN -1
225#define RFCOMM_CFC_DISABLED 0
226#define RFCOMM_CFC_ENABLED RFCOMM_MAX_CREDITS
227
228/* ---- RFCOMM SEND RPN ---- */
229int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
230 u8 bit_rate, u8 data_bits, u8 stop_bits,
231 u8 parity, u8 flow_ctrl_settings,
232 u8 xon_char, u8 xoff_char, u16 param_mask);
233
234/* ---- RFCOMM DLCs (channels) ---- */
235struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
236void rfcomm_dlc_free(struct rfcomm_dlc *d);
237int rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
238 u8 channel);
239int rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
240int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
241int rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
242int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
243void rfcomm_dlc_accept(struct rfcomm_dlc *d);
244
245#define rfcomm_dlc_lock(d) spin_lock(&d->lock)
246#define rfcomm_dlc_unlock(d) spin_unlock(&d->lock)
247
248static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
249{
250 atomic_inc(&d->refcnt);
251}
252
253static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
254{
255 if (atomic_dec_and_test(&d->refcnt))
256 rfcomm_dlc_free(d);
257}
258
259extern void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
260extern void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
261
262static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
263{
264 if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
265 __rfcomm_dlc_throttle(d);
266}
267
268static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
269{
270 if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
271 __rfcomm_dlc_unthrottle(d);
272}
273
274/* ---- RFCOMM sessions ---- */
275void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src,
276 bdaddr_t *dst);
277
278static inline void rfcomm_session_hold(struct rfcomm_session *s)
279{
280 atomic_inc(&s->refcnt);
281}
282
283/* ---- RFCOMM sockets ---- */
284struct sockaddr_rc {
285 sa_family_t rc_family;
286 bdaddr_t rc_bdaddr;
287 u8 rc_channel;
288};
289
290#define RFCOMM_CONNINFO 0x02
291struct rfcomm_conninfo {
292 __u16 hci_handle;
293 __u8 dev_class[3];
294};
295
296#define RFCOMM_LM 0x03
297#define RFCOMM_LM_MASTER 0x0001
298#define RFCOMM_LM_AUTH 0x0002
299#define RFCOMM_LM_ENCRYPT 0x0004
300#define RFCOMM_LM_TRUSTED 0x0008
301#define RFCOMM_LM_RELIABLE 0x0010
302#define RFCOMM_LM_SECURE 0x0020
303
304#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
305
306struct rfcomm_pinfo {
307 struct bt_sock bt;
308 struct rfcomm_dlc *dlc;
309 u8 channel;
310 u8 sec_level;
311 u8 role_switch;
312};
313
314int rfcomm_init_sockets(void);
315void rfcomm_cleanup_sockets(void);
316
317int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel,
318 struct rfcomm_dlc **d);
319
320/* ---- RFCOMM TTY ---- */
321#define RFCOMM_MAX_DEV 256
322
323#define RFCOMMCREATEDEV _IOW('R', 200, int)
324#define RFCOMMRELEASEDEV _IOW('R', 201, int)
325#define RFCOMMGETDEVLIST _IOR('R', 210, int)
326#define RFCOMMGETDEVINFO _IOR('R', 211, int)
327#define RFCOMMSTEALDLC _IOW('R', 220, int)
328
329#define RFCOMM_REUSE_DLC 0
330#define RFCOMM_RELEASE_ONHUP 1
331#define RFCOMM_HANGUP_NOW 2
332#define RFCOMM_TTY_ATTACHED 3
333#define RFCOMM_TTY_RELEASED 4
334
335struct rfcomm_dev_req {
336 s16 dev_id;
337 u32 flags;
338 bdaddr_t src;
339 bdaddr_t dst;
340 u8 channel;
341};
342
343struct rfcomm_dev_info {
344 s16 id;
345 u32 flags;
346 u16 state;
347 bdaddr_t src;
348 bdaddr_t dst;
349 u8 channel;
350};
351
352struct rfcomm_dev_list_req {
353 u16 dev_num;
354 struct rfcomm_dev_info dev_info[0];
355};
356
357int rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
358
359#ifdef CONFIG_BT_RFCOMM_TTY
360int rfcomm_init_ttys(void);
361void rfcomm_cleanup_ttys(void);
362#else
363static inline int rfcomm_init_ttys(void)
364{
365 return 0;
366}
367static inline void rfcomm_cleanup_ttys(void)
368{
369}
370#endif
371#endif /* __RFCOMM_H */
1/*
2 RFCOMM implementation for Linux Bluetooth stack (BlueZ)
3 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
4 Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License version 2 as
8 published by the Free Software Foundation;
9
10 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
11 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
12 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
13 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
14 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
15 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18
19 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
20 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
21 SOFTWARE IS DISCLAIMED.
22*/
23
24#include <linux/refcount.h>
25
26#ifndef __RFCOMM_H
27#define __RFCOMM_H
28
29#define RFCOMM_CONN_TIMEOUT (HZ * 30)
30#define RFCOMM_DISC_TIMEOUT (HZ * 20)
31#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
32#define RFCOMM_IDLE_TIMEOUT (HZ * 2)
33
34#define RFCOMM_DEFAULT_MTU 127
35#define RFCOMM_DEFAULT_CREDITS 7
36
37#define RFCOMM_MAX_L2CAP_MTU 1013
38#define RFCOMM_MAX_CREDITS 40
39
40#define RFCOMM_SKB_HEAD_RESERVE 8
41#define RFCOMM_SKB_TAIL_RESERVE 2
42#define RFCOMM_SKB_RESERVE (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)
43
44#define RFCOMM_SABM 0x2f
45#define RFCOMM_DISC 0x43
46#define RFCOMM_UA 0x63
47#define RFCOMM_DM 0x0f
48#define RFCOMM_UIH 0xef
49
50#define RFCOMM_TEST 0x08
51#define RFCOMM_FCON 0x28
52#define RFCOMM_FCOFF 0x18
53#define RFCOMM_MSC 0x38
54#define RFCOMM_RPN 0x24
55#define RFCOMM_RLS 0x14
56#define RFCOMM_PN 0x20
57#define RFCOMM_NSC 0x04
58
59#define RFCOMM_V24_FC 0x02
60#define RFCOMM_V24_RTC 0x04
61#define RFCOMM_V24_RTR 0x08
62#define RFCOMM_V24_IC 0x40
63#define RFCOMM_V24_DV 0x80
64
65#define RFCOMM_RPN_BR_2400 0x0
66#define RFCOMM_RPN_BR_4800 0x1
67#define RFCOMM_RPN_BR_7200 0x2
68#define RFCOMM_RPN_BR_9600 0x3
69#define RFCOMM_RPN_BR_19200 0x4
70#define RFCOMM_RPN_BR_38400 0x5
71#define RFCOMM_RPN_BR_57600 0x6
72#define RFCOMM_RPN_BR_115200 0x7
73#define RFCOMM_RPN_BR_230400 0x8
74
75#define RFCOMM_RPN_DATA_5 0x0
76#define RFCOMM_RPN_DATA_6 0x1
77#define RFCOMM_RPN_DATA_7 0x2
78#define RFCOMM_RPN_DATA_8 0x3
79
80#define RFCOMM_RPN_STOP_1 0
81#define RFCOMM_RPN_STOP_15 1
82
83#define RFCOMM_RPN_PARITY_NONE 0x0
84#define RFCOMM_RPN_PARITY_ODD 0x1
85#define RFCOMM_RPN_PARITY_EVEN 0x3
86#define RFCOMM_RPN_PARITY_MARK 0x5
87#define RFCOMM_RPN_PARITY_SPACE 0x7
88
89#define RFCOMM_RPN_FLOW_NONE 0x00
90
91#define RFCOMM_RPN_XON_CHAR 0x11
92#define RFCOMM_RPN_XOFF_CHAR 0x13
93
94#define RFCOMM_RPN_PM_BITRATE 0x0001
95#define RFCOMM_RPN_PM_DATA 0x0002
96#define RFCOMM_RPN_PM_STOP 0x0004
97#define RFCOMM_RPN_PM_PARITY 0x0008
98#define RFCOMM_RPN_PM_PARITY_TYPE 0x0010
99#define RFCOMM_RPN_PM_XON 0x0020
100#define RFCOMM_RPN_PM_XOFF 0x0040
101#define RFCOMM_RPN_PM_FLOW 0x3F00
102
103#define RFCOMM_RPN_PM_ALL 0x3F7F
104
105struct rfcomm_hdr {
106 u8 addr;
107 u8 ctrl;
108 u8 len; /* Actual size can be 2 bytes */
109} __packed;
110
111struct rfcomm_cmd {
112 u8 addr;
113 u8 ctrl;
114 u8 len;
115 u8 fcs;
116} __packed;
117
118struct rfcomm_mcc {
119 u8 type;
120 u8 len;
121} __packed;
122
123struct rfcomm_pn {
124 u8 dlci;
125 u8 flow_ctrl;
126 u8 priority;
127 u8 ack_timer;
128 __le16 mtu;
129 u8 max_retrans;
130 u8 credits;
131} __packed;
132
133struct rfcomm_rpn {
134 u8 dlci;
135 u8 bit_rate;
136 u8 line_settings;
137 u8 flow_ctrl;
138 u8 xon_char;
139 u8 xoff_char;
140 __le16 param_mask;
141} __packed;
142
143struct rfcomm_rls {
144 u8 dlci;
145 u8 status;
146} __packed;
147
148struct rfcomm_msc {
149 u8 dlci;
150 u8 v24_sig;
151} __packed;
152
153/* ---- Core structures, flags etc ---- */
154
155struct rfcomm_session {
156 struct list_head list;
157 struct socket *sock;
158 struct timer_list timer;
159 unsigned long state;
160 unsigned long flags;
161 int initiator;
162
163 /* Default DLC parameters */
164 int cfc;
165 uint mtu;
166
167 struct list_head dlcs;
168};
169
170struct rfcomm_dlc {
171 struct list_head list;
172 struct rfcomm_session *session;
173 struct sk_buff_head tx_queue;
174 struct timer_list timer;
175
176 struct mutex lock;
177 unsigned long state;
178 unsigned long flags;
179 refcount_t refcnt;
180 u8 dlci;
181 u8 addr;
182 u8 priority;
183 u8 v24_sig;
184 u8 remote_v24_sig;
185 u8 mscex;
186 u8 out;
187 u8 sec_level;
188 u8 role_switch;
189 u32 defer_setup;
190
191 uint mtu;
192 uint cfc;
193 uint rx_credits;
194 uint tx_credits;
195
196 void *owner;
197
198 void (*data_ready)(struct rfcomm_dlc *d, struct sk_buff *skb);
199 void (*state_change)(struct rfcomm_dlc *d, int err);
200 void (*modem_status)(struct rfcomm_dlc *d, u8 v24_sig);
201};
202
203/* DLC and session flags */
204#define RFCOMM_RX_THROTTLED 0
205#define RFCOMM_TX_THROTTLED 1
206#define RFCOMM_TIMED_OUT 2
207#define RFCOMM_MSC_PENDING 3
208#define RFCOMM_SEC_PENDING 4
209#define RFCOMM_AUTH_PENDING 5
210#define RFCOMM_AUTH_ACCEPT 6
211#define RFCOMM_AUTH_REJECT 7
212#define RFCOMM_DEFER_SETUP 8
213#define RFCOMM_ENC_DROP 9
214
215/* Scheduling flags and events */
216#define RFCOMM_SCHED_WAKEUP 31
217
218/* MSC exchange flags */
219#define RFCOMM_MSCEX_TX 1
220#define RFCOMM_MSCEX_RX 2
221#define RFCOMM_MSCEX_OK (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
222
223/* CFC states */
224#define RFCOMM_CFC_UNKNOWN -1
225#define RFCOMM_CFC_DISABLED 0
226#define RFCOMM_CFC_ENABLED RFCOMM_MAX_CREDITS
227
228/* ---- RFCOMM SEND RPN ---- */
229int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
230 u8 bit_rate, u8 data_bits, u8 stop_bits,
231 u8 parity, u8 flow_ctrl_settings,
232 u8 xon_char, u8 xoff_char, u16 param_mask);
233
234/* ---- RFCOMM DLCs (channels) ---- */
235struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
236void rfcomm_dlc_free(struct rfcomm_dlc *d);
237int rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
238 u8 channel);
239int rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
240int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
241void rfcomm_dlc_send_noerror(struct rfcomm_dlc *d, struct sk_buff *skb);
242int rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
243int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
244void rfcomm_dlc_accept(struct rfcomm_dlc *d);
245struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel);
246
247#define rfcomm_dlc_lock(d) mutex_lock(&d->lock)
248#define rfcomm_dlc_unlock(d) mutex_unlock(&d->lock)
249
250static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
251{
252 refcount_inc(&d->refcnt);
253}
254
255static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
256{
257 if (refcount_dec_and_test(&d->refcnt))
258 rfcomm_dlc_free(d);
259}
260
261void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
262void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
263
264static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
265{
266 if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
267 __rfcomm_dlc_throttle(d);
268}
269
270static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
271{
272 if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
273 __rfcomm_dlc_unthrottle(d);
274}
275
276/* ---- RFCOMM sessions ---- */
277void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src,
278 bdaddr_t *dst);
279
280/* ---- RFCOMM sockets ---- */
281struct sockaddr_rc {
282 sa_family_t rc_family;
283 bdaddr_t rc_bdaddr;
284 u8 rc_channel;
285};
286
287#define RFCOMM_CONNINFO 0x02
288struct rfcomm_conninfo {
289 __u16 hci_handle;
290 __u8 dev_class[3];
291};
292
293#define RFCOMM_LM 0x03
294#define RFCOMM_LM_MASTER 0x0001
295#define RFCOMM_LM_AUTH 0x0002
296#define RFCOMM_LM_ENCRYPT 0x0004
297#define RFCOMM_LM_TRUSTED 0x0008
298#define RFCOMM_LM_RELIABLE 0x0010
299#define RFCOMM_LM_SECURE 0x0020
300#define RFCOMM_LM_FIPS 0x0040
301
302#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
303
304struct rfcomm_pinfo {
305 struct bt_sock bt;
306 bdaddr_t src;
307 bdaddr_t dst;
308 struct rfcomm_dlc *dlc;
309 u8 channel;
310 u8 sec_level;
311 u8 role_switch;
312};
313
314int rfcomm_init_sockets(void);
315void rfcomm_cleanup_sockets(void);
316
317int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel,
318 struct rfcomm_dlc **d);
319
320/* ---- RFCOMM TTY ---- */
321#define RFCOMM_MAX_DEV 256
322
323#define RFCOMMCREATEDEV _IOW('R', 200, int)
324#define RFCOMMRELEASEDEV _IOW('R', 201, int)
325#define RFCOMMGETDEVLIST _IOR('R', 210, int)
326#define RFCOMMGETDEVINFO _IOR('R', 211, int)
327#define RFCOMMSTEALDLC _IOW('R', 220, int)
328
329/* rfcomm_dev.flags bit definitions */
330#define RFCOMM_REUSE_DLC 0
331#define RFCOMM_RELEASE_ONHUP 1
332#define RFCOMM_HANGUP_NOW 2
333#define RFCOMM_TTY_ATTACHED 3
334#define RFCOMM_DEFUNCT_BIT4 4 /* don't reuse this bit - userspace visible */
335
336/* rfcomm_dev.status bit definitions */
337#define RFCOMM_DEV_RELEASED 0
338#define RFCOMM_TTY_OWNED 1
339
340struct rfcomm_dev_req {
341 s16 dev_id;
342 u32 flags;
343 bdaddr_t src;
344 bdaddr_t dst;
345 u8 channel;
346};
347
348struct rfcomm_dev_info {
349 s16 id;
350 u32 flags;
351 u16 state;
352 bdaddr_t src;
353 bdaddr_t dst;
354 u8 channel;
355};
356
357struct rfcomm_dev_list_req {
358 u16 dev_num;
359 struct rfcomm_dev_info dev_info[0];
360};
361
362int rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
363
364#ifdef CONFIG_BT_RFCOMM_TTY
365int rfcomm_init_ttys(void);
366void rfcomm_cleanup_ttys(void);
367#else
368static inline int rfcomm_init_ttys(void)
369{
370 return 0;
371}
372static inline void rfcomm_cleanup_ttys(void)
373{
374}
375#endif
376#endif /* __RFCOMM_H */