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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;
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 atomic_t refcnt;
162 int initiator;
163
164
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
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#define RFCOMM_ENC_DROP 9
215
216
217#define RFCOMM_SCHED_WAKEUP 31
218
219
220#define RFCOMM_MSCEX_TX 1
221#define RFCOMM_MSCEX_RX 2
222#define RFCOMM_MSCEX_OK (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
223
224
225#define RFCOMM_CFC_UNKNOWN -1
226#define RFCOMM_CFC_DISABLED 0
227#define RFCOMM_CFC_ENABLED RFCOMM_MAX_CREDITS
228
229
230int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
231 u8 bit_rate, u8 data_bits, u8 stop_bits,
232 u8 parity, u8 flow_ctrl_settings,
233 u8 xon_char, u8 xoff_char, u16 param_mask);
234
235
236struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
237void rfcomm_dlc_free(struct rfcomm_dlc *d);
238int rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
239 u8 channel);
240int rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
241int rfcomm_dlc_send(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);
245
246#define rfcomm_dlc_lock(d) spin_lock(&d->lock)
247#define rfcomm_dlc_unlock(d) spin_unlock(&d->lock)
248
249static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
250{
251 atomic_inc(&d->refcnt);
252}
253
254static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
255{
256 if (atomic_dec_and_test(&d->refcnt))
257 rfcomm_dlc_free(d);
258}
259
260extern void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
261extern void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
262
263static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
264{
265 if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
266 __rfcomm_dlc_throttle(d);
267}
268
269static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
270{
271 if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
272 __rfcomm_dlc_unthrottle(d);
273}
274
275
276void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src,
277 bdaddr_t *dst);
278
279static inline void rfcomm_session_hold(struct rfcomm_session *s)
280{
281 atomic_inc(&s->refcnt);
282}
283
284
285struct sockaddr_rc {
286 sa_family_t rc_family;
287 bdaddr_t rc_bdaddr;
288 u8 rc_channel;
289};
290
291#define RFCOMM_CONNINFO 0x02
292struct rfcomm_conninfo {
293 __u16 hci_handle;
294 __u8 dev_class[3];
295};
296
297#define RFCOMM_LM 0x03
298#define RFCOMM_LM_MASTER 0x0001
299#define RFCOMM_LM_AUTH 0x0002
300#define RFCOMM_LM_ENCRYPT 0x0004
301#define RFCOMM_LM_TRUSTED 0x0008
302#define RFCOMM_LM_RELIABLE 0x0010
303#define RFCOMM_LM_SECURE 0x0020
304
305#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
306
307struct rfcomm_pinfo {
308 struct bt_sock bt;
309 struct rfcomm_dlc *dlc;
310 u8 channel;
311 u8 sec_level;
312 u8 role_switch;
313};
314
315int rfcomm_init_sockets(void);
316void rfcomm_cleanup_sockets(void);
317
318int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel,
319 struct rfcomm_dlc **d);
320
321
322#define RFCOMM_MAX_DEV 256
323
324#define RFCOMMCREATEDEV _IOW('R', 200, int)
325#define RFCOMMRELEASEDEV _IOW('R', 201, int)
326#define RFCOMMGETDEVLIST _IOR('R', 210, int)
327#define RFCOMMGETDEVINFO _IOR('R', 211, int)
328#define RFCOMMSTEALDLC _IOW('R', 220, int)
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_TTY_RELEASED 4
335
336struct rfcomm_dev_req {
337 s16 dev_id;
338 u32 flags;
339 bdaddr_t src;
340 bdaddr_t dst;
341 u8 channel;
342};
343
344struct rfcomm_dev_info {
345 s16 id;
346 u32 flags;
347 u16 state;
348 bdaddr_t src;
349 bdaddr_t dst;
350 u8 channel;
351};
352
353struct rfcomm_dev_list_req {
354 u16 dev_num;
355 struct rfcomm_dev_info dev_info[0];
356};
357
358int rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
359
360#ifdef CONFIG_BT_RFCOMM_TTY
361int rfcomm_init_ttys(void);
362void rfcomm_cleanup_ttys(void);
363#else
364static inline int rfcomm_init_ttys(void)
365{
366 return 0;
367}
368static inline void rfcomm_cleanup_ttys(void)
369{
370}
371#endif
372#endif
373