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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;
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
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
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
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
216#define RFCOMM_SCHED_WAKEUP 31
217
218
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
224#define RFCOMM_CFC_UNKNOWN -1
225#define RFCOMM_CFC_DISABLED 0
226#define RFCOMM_CFC_ENABLED RFCOMM_MAX_CREDITS
227
228
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
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
277void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src,
278 bdaddr_t *dst);
279
280
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
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
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
335
336
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
377
