Commit | Line | Data |
---|---|---|
be21871f | 1 | /* |
1da177e4 LT |
2 | BlueZ - Bluetooth protocol stack for Linux |
3 | Copyright (C) 2000-2001 Qualcomm Incorporated | |
ce5706bd | 4 | Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org> |
5d8868ff | 5 | Copyright (C) 2010 Google Inc. |
1da177e4 LT |
6 | |
7 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License version 2 as | |
11 | published by the Free Software Foundation; | |
12 | ||
13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
14 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
16 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
be21871f AE |
17 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
18 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
19 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
1da177e4 LT |
20 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
21 | ||
be21871f AE |
22 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
23 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
1da177e4 LT |
24 | SOFTWARE IS DISCLAIMED. |
25 | */ | |
26 | ||
27 | #ifndef __L2CAP_H | |
28 | #define __L2CAP_H | |
29 | ||
88843ab0 AE |
30 | #include <asm/unaligned.h> |
31 | ||
1da177e4 | 32 | /* L2CAP defaults */ |
47ec1dcd | 33 | #define L2CAP_DEFAULT_MTU 672 |
f2fcfcd6 | 34 | #define L2CAP_DEFAULT_MIN_MTU 48 |
47ec1dcd | 35 | #define L2CAP_DEFAULT_FLUSH_TO 0xffff |
1c2acffb | 36 | #define L2CAP_DEFAULT_TX_WINDOW 63 |
6327eb98 | 37 | #define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF |
e90bac06 | 38 | #define L2CAP_DEFAULT_MAX_TX 3 |
fa235562 | 39 | #define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */ |
e90bac06 | 40 | #define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */ |
db12d647 | 41 | #define L2CAP_DEFAULT_MAX_PDU_SIZE 1009 /* Sized for 3-DH5 packet */ |
c1b4f43b | 42 | #define L2CAP_DEFAULT_ACK_TO 200 |
b62f328b | 43 | #define L2CAP_LE_DEFAULT_MTU 23 |
8f7975b1 AE |
44 | #define L2CAP_DEFAULT_MAX_SDU_SIZE 0xFFFF |
45 | #define L2CAP_DEFAULT_SDU_ITIME 0xFFFFFFFF | |
46 | #define L2CAP_DEFAULT_ACC_LAT 0xFFFFFFFF | |
1da177e4 | 47 | |
ba13ccd9 MH |
48 | #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100) |
49 | #define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000) | |
50 | #define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000) | |
51 | #define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000) | |
52 | #define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000) | |
1da177e4 LT |
53 | |
54 | /* L2CAP socket address */ | |
55 | struct sockaddr_l2 { | |
56 | sa_family_t l2_family; | |
8e036fc3 | 57 | __le16 l2_psm; |
1da177e4 | 58 | bdaddr_t l2_bdaddr; |
f29972de | 59 | __le16 l2_cid; |
1da177e4 LT |
60 | }; |
61 | ||
62 | /* L2CAP socket options */ | |
63 | #define L2CAP_OPTIONS 0x01 | |
64 | struct l2cap_options { | |
65 | __u16 omtu; | |
66 | __u16 imtu; | |
67 | __u16 flush_to; | |
68 | __u8 mode; | |
fcc203c3 | 69 | __u8 fcs; |
68d7f0ce | 70 | __u8 max_tx; |
14b5aa71 | 71 | __u16 txwin_size; |
1da177e4 LT |
72 | }; |
73 | ||
74 | #define L2CAP_CONNINFO 0x02 | |
75 | struct l2cap_conninfo { | |
76 | __u16 hci_handle; | |
77 | __u8 dev_class[3]; | |
78 | }; | |
79 | ||
80 | #define L2CAP_LM 0x03 | |
81 | #define L2CAP_LM_MASTER 0x0001 | |
82 | #define L2CAP_LM_AUTH 0x0002 | |
83 | #define L2CAP_LM_ENCRYPT 0x0004 | |
84 | #define L2CAP_LM_TRUSTED 0x0008 | |
85 | #define L2CAP_LM_RELIABLE 0x0010 | |
86 | #define L2CAP_LM_SECURE 0x0020 | |
87 | ||
88 | /* L2CAP command codes */ | |
47ec1dcd MH |
89 | #define L2CAP_COMMAND_REJ 0x01 |
90 | #define L2CAP_CONN_REQ 0x02 | |
91 | #define L2CAP_CONN_RSP 0x03 | |
92 | #define L2CAP_CONF_REQ 0x04 | |
93 | #define L2CAP_CONF_RSP 0x05 | |
94 | #define L2CAP_DISCONN_REQ 0x06 | |
95 | #define L2CAP_DISCONN_RSP 0x07 | |
96 | #define L2CAP_ECHO_REQ 0x08 | |
97 | #define L2CAP_ECHO_RSP 0x09 | |
98 | #define L2CAP_INFO_REQ 0x0a | |
99 | #define L2CAP_INFO_RSP 0x0b | |
38094c75 MM |
100 | #define L2CAP_CREATE_CHAN_REQ 0x0c |
101 | #define L2CAP_CREATE_CHAN_RSP 0x0d | |
102 | #define L2CAP_MOVE_CHAN_REQ 0x0e | |
103 | #define L2CAP_MOVE_CHAN_RSP 0x0f | |
104 | #define L2CAP_MOVE_CHAN_CFM 0x10 | |
105 | #define L2CAP_MOVE_CHAN_CFM_RSP 0x11 | |
3300d9a9 CT |
106 | #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12 |
107 | #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13 | |
47ec1dcd | 108 | |
a858393b | 109 | /* L2CAP extended feature mask */ |
47ec1dcd MH |
110 | #define L2CAP_FEAT_FLOWCTL 0x00000001 |
111 | #define L2CAP_FEAT_RETRANS 0x00000002 | |
a858393b | 112 | #define L2CAP_FEAT_BIDIR_QOS 0x00000004 |
47ec1dcd MH |
113 | #define L2CAP_FEAT_ERTM 0x00000008 |
114 | #define L2CAP_FEAT_STREAMING 0x00000010 | |
115 | #define L2CAP_FEAT_FCS 0x00000020 | |
a858393b | 116 | #define L2CAP_FEAT_EXT_FLOW 0x00000040 |
47ec1dcd | 117 | #define L2CAP_FEAT_FIXED_CHAN 0x00000080 |
a858393b AE |
118 | #define L2CAP_FEAT_EXT_WINDOW 0x00000100 |
119 | #define L2CAP_FEAT_UCD 0x00000200 | |
47ec1dcd MH |
120 | |
121 | /* L2CAP checksum option */ | |
122 | #define L2CAP_FCS_NONE 0x00 | |
123 | #define L2CAP_FCS_CRC16 0x01 | |
1da177e4 | 124 | |
d835ac0f MM |
125 | /* L2CAP fixed channels */ |
126 | #define L2CAP_FC_L2CAP 0x02 | |
127 | #define L2CAP_FC_A2MP 0x08 | |
128 | ||
1c2acffb | 129 | /* L2CAP Control Field bit masks */ |
57253fd8 AE |
130 | #define L2CAP_CTRL_SAR 0xC000 |
131 | #define L2CAP_CTRL_REQSEQ 0x3F00 | |
132 | #define L2CAP_CTRL_TXSEQ 0x007E | |
133 | #define L2CAP_CTRL_SUPERVISE 0x000C | |
134 | ||
135 | #define L2CAP_CTRL_RETRANS 0x0080 | |
136 | #define L2CAP_CTRL_FINAL 0x0080 | |
137 | #define L2CAP_CTRL_POLL 0x0010 | |
138 | #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ | |
139 | ||
140 | #define L2CAP_CTRL_TXSEQ_SHIFT 1 | |
141 | #define L2CAP_CTRL_SUPER_SHIFT 2 | |
d5f7ac38 MM |
142 | #define L2CAP_CTRL_POLL_SHIFT 4 |
143 | #define L2CAP_CTRL_FINAL_SHIFT 7 | |
57253fd8 AE |
144 | #define L2CAP_CTRL_REQSEQ_SHIFT 8 |
145 | #define L2CAP_CTRL_SAR_SHIFT 14 | |
146 | ||
147 | /* L2CAP Extended Control Field bit mask */ | |
148 | #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000 | |
149 | #define L2CAP_EXT_CTRL_SAR 0x00030000 | |
150 | #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000 | |
151 | #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC | |
152 | ||
153 | #define L2CAP_EXT_CTRL_POLL 0x00040000 | |
154 | #define L2CAP_EXT_CTRL_FINAL 0x00000002 | |
155 | #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ | |
156 | ||
d5f7ac38 | 157 | #define L2CAP_EXT_CTRL_FINAL_SHIFT 1 |
57253fd8 AE |
158 | #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2 |
159 | #define L2CAP_EXT_CTRL_SAR_SHIFT 16 | |
160 | #define L2CAP_EXT_CTRL_SUPER_SHIFT 16 | |
d5f7ac38 | 161 | #define L2CAP_EXT_CTRL_POLL_SHIFT 18 |
57253fd8 | 162 | #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 |
1c2acffb GP |
163 | |
164 | /* L2CAP Supervisory Function */ | |
ab784b73 AE |
165 | #define L2CAP_SUPER_RR 0x00 |
166 | #define L2CAP_SUPER_REJ 0x01 | |
167 | #define L2CAP_SUPER_RNR 0x02 | |
168 | #define L2CAP_SUPER_SREJ 0x03 | |
1c2acffb GP |
169 | |
170 | /* L2CAP Segmentation and Reassembly */ | |
7e0ef6ee AE |
171 | #define L2CAP_SAR_UNSEGMENTED 0x00 |
172 | #define L2CAP_SAR_START 0x01 | |
173 | #define L2CAP_SAR_END 0x02 | |
174 | #define L2CAP_SAR_CONTINUE 0x03 | |
1c2acffb | 175 | |
e2fd318e | 176 | /* L2CAP Command rej. reasons */ |
8d6765aa AE |
177 | #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 |
178 | #define L2CAP_REJ_MTU_EXCEEDED 0x0001 | |
179 | #define L2CAP_REJ_INVALID_CID 0x0002 | |
e2fd318e | 180 | |
1da177e4 LT |
181 | /* L2CAP structures */ |
182 | struct l2cap_hdr { | |
8e036fc3 AV |
183 | __le16 len; |
184 | __le16 cid; | |
66c853cc | 185 | } __packed; |
1da177e4 | 186 | #define L2CAP_HDR_SIZE 4 |
d43cb289 AE |
187 | #define L2CAP_ENH_HDR_SIZE 6 |
188 | #define L2CAP_EXT_HDR_SIZE 8 | |
189 | ||
190 | #define L2CAP_FCS_SIZE 2 | |
191 | #define L2CAP_SDULEN_SIZE 2 | |
192 | #define L2CAP_PSMLEN_SIZE 2 | |
d5f7ac38 MM |
193 | #define L2CAP_ENH_CTRL_SIZE 2 |
194 | #define L2CAP_EXT_CTRL_SIZE 4 | |
1da177e4 LT |
195 | |
196 | struct l2cap_cmd_hdr { | |
197 | __u8 code; | |
198 | __u8 ident; | |
8e036fc3 | 199 | __le16 len; |
66c853cc | 200 | } __packed; |
1da177e4 LT |
201 | #define L2CAP_CMD_HDR_SIZE 4 |
202 | ||
e2fd318e IK |
203 | struct l2cap_cmd_rej_unk { |
204 | __le16 reason; | |
205 | } __packed; | |
206 | ||
207 | struct l2cap_cmd_rej_mtu { | |
8e036fc3 | 208 | __le16 reason; |
e2fd318e IK |
209 | __le16 max_mtu; |
210 | } __packed; | |
211 | ||
212 | struct l2cap_cmd_rej_cid { | |
213 | __le16 reason; | |
214 | __le16 scid; | |
215 | __le16 dcid; | |
66c853cc | 216 | } __packed; |
1da177e4 LT |
217 | |
218 | struct l2cap_conn_req { | |
8e036fc3 AV |
219 | __le16 psm; |
220 | __le16 scid; | |
66c853cc | 221 | } __packed; |
1da177e4 LT |
222 | |
223 | struct l2cap_conn_rsp { | |
8e036fc3 AV |
224 | __le16 dcid; |
225 | __le16 scid; | |
226 | __le16 result; | |
227 | __le16 status; | |
66c853cc | 228 | } __packed; |
1da177e4 | 229 | |
8db4dc46 GP |
230 | /* channel indentifier */ |
231 | #define L2CAP_CID_SIGNALING 0x0001 | |
232 | #define L2CAP_CID_CONN_LESS 0x0002 | |
acd7d370 VT |
233 | #define L2CAP_CID_LE_DATA 0x0004 |
234 | #define L2CAP_CID_LE_SIGNALING 0x0005 | |
235 | #define L2CAP_CID_SMP 0x0006 | |
8db4dc46 GP |
236 | #define L2CAP_CID_DYN_START 0x0040 |
237 | #define L2CAP_CID_DYN_END 0xffff | |
238 | ||
38094c75 | 239 | /* connect/create channel results */ |
47ec1dcd MH |
240 | #define L2CAP_CR_SUCCESS 0x0000 |
241 | #define L2CAP_CR_PEND 0x0001 | |
242 | #define L2CAP_CR_BAD_PSM 0x0002 | |
243 | #define L2CAP_CR_SEC_BLOCK 0x0003 | |
244 | #define L2CAP_CR_NO_MEM 0x0004 | |
38094c75 | 245 | #define L2CAP_CR_BAD_AMP 0x0005 |
1da177e4 | 246 | |
38094c75 | 247 | /* connect/create channel status */ |
47ec1dcd MH |
248 | #define L2CAP_CS_NO_INFO 0x0000 |
249 | #define L2CAP_CS_AUTHEN_PEND 0x0001 | |
250 | #define L2CAP_CS_AUTHOR_PEND 0x0002 | |
1da177e4 LT |
251 | |
252 | struct l2cap_conf_req { | |
8e036fc3 AV |
253 | __le16 dcid; |
254 | __le16 flags; | |
1da177e4 | 255 | __u8 data[0]; |
66c853cc | 256 | } __packed; |
1da177e4 LT |
257 | |
258 | struct l2cap_conf_rsp { | |
8e036fc3 AV |
259 | __le16 scid; |
260 | __le16 flags; | |
261 | __le16 result; | |
1da177e4 | 262 | __u8 data[0]; |
66c853cc | 263 | } __packed; |
1da177e4 | 264 | |
5dee9e7c MH |
265 | #define L2CAP_CONF_SUCCESS 0x0000 |
266 | #define L2CAP_CONF_UNACCEPT 0x0001 | |
267 | #define L2CAP_CONF_REJECT 0x0002 | |
268 | #define L2CAP_CONF_UNKNOWN 0x0003 | |
0e8b207e | 269 | #define L2CAP_CONF_PENDING 0x0004 |
5a9e7057 | 270 | #define L2CAP_CONF_EFS_REJECT 0x0005 |
1da177e4 LT |
271 | |
272 | struct l2cap_conf_opt { | |
273 | __u8 type; | |
274 | __u8 len; | |
275 | __u8 val[0]; | |
66c853cc | 276 | } __packed; |
1da177e4 LT |
277 | #define L2CAP_CONF_OPT_SIZE 2 |
278 | ||
589d2746 | 279 | #define L2CAP_CONF_HINT 0x80 |
47ec1dcd | 280 | #define L2CAP_CONF_MASK 0x7f |
589d2746 | 281 | |
1da177e4 LT |
282 | #define L2CAP_CONF_MTU 0x01 |
283 | #define L2CAP_CONF_FLUSH_TO 0x02 | |
284 | #define L2CAP_CONF_QOS 0x03 | |
285 | #define L2CAP_CONF_RFC 0x04 | |
47ec1dcd | 286 | #define L2CAP_CONF_FCS 0x05 |
5a9e7057 | 287 | #define L2CAP_CONF_EFS 0x06 |
6327eb98 | 288 | #define L2CAP_CONF_EWS 0x07 |
1da177e4 LT |
289 | |
290 | #define L2CAP_CONF_MAX_SIZE 22 | |
291 | ||
6464f35f MH |
292 | struct l2cap_conf_rfc { |
293 | __u8 mode; | |
294 | __u8 txwin_size; | |
295 | __u8 max_transmit; | |
296 | __le16 retrans_timeout; | |
297 | __le16 monitor_timeout; | |
298 | __le16 max_pdu_size; | |
66c853cc | 299 | } __packed; |
6464f35f MH |
300 | |
301 | #define L2CAP_MODE_BASIC 0x00 | |
302 | #define L2CAP_MODE_RETRANS 0x01 | |
303 | #define L2CAP_MODE_FLOWCTL 0x02 | |
47ec1dcd | 304 | #define L2CAP_MODE_ERTM 0x03 |
c6b03cf9 | 305 | #define L2CAP_MODE_STREAMING 0x04 |
6464f35f | 306 | |
5a9e7057 AE |
307 | struct l2cap_conf_efs { |
308 | __u8 id; | |
309 | __u8 stype; | |
310 | __le16 msdu; | |
311 | __le32 sdu_itime; | |
312 | __le32 acc_lat; | |
313 | __le32 flush_to; | |
314 | } __packed; | |
315 | ||
8f7975b1 AE |
316 | #define L2CAP_SERV_NOTRAFIC 0x00 |
317 | #define L2CAP_SERV_BESTEFFORT 0x01 | |
318 | #define L2CAP_SERV_GUARANTEED 0x02 | |
319 | ||
320 | #define L2CAP_BESTEFFORT_ID 0x01 | |
321 | ||
1da177e4 | 322 | struct l2cap_disconn_req { |
8e036fc3 AV |
323 | __le16 dcid; |
324 | __le16 scid; | |
66c853cc | 325 | } __packed; |
1da177e4 LT |
326 | |
327 | struct l2cap_disconn_rsp { | |
8e036fc3 AV |
328 | __le16 dcid; |
329 | __le16 scid; | |
66c853cc | 330 | } __packed; |
1da177e4 LT |
331 | |
332 | struct l2cap_info_req { | |
8e036fc3 | 333 | __le16 type; |
66c853cc | 334 | } __packed; |
1da177e4 LT |
335 | |
336 | struct l2cap_info_rsp { | |
8e036fc3 AV |
337 | __le16 type; |
338 | __le16 result; | |
1da177e4 | 339 | __u8 data[0]; |
66c853cc | 340 | } __packed; |
1da177e4 | 341 | |
38094c75 MM |
342 | struct l2cap_create_chan_req { |
343 | __le16 psm; | |
344 | __le16 scid; | |
345 | __u8 amp_id; | |
346 | } __packed; | |
347 | ||
348 | struct l2cap_create_chan_rsp { | |
349 | __le16 dcid; | |
350 | __le16 scid; | |
351 | __le16 result; | |
352 | __le16 status; | |
353 | } __packed; | |
354 | ||
355 | struct l2cap_move_chan_req { | |
356 | __le16 icid; | |
357 | __u8 dest_amp_id; | |
358 | } __packed; | |
359 | ||
360 | struct l2cap_move_chan_rsp { | |
361 | __le16 icid; | |
362 | __le16 result; | |
363 | } __packed; | |
364 | ||
365 | #define L2CAP_MR_SUCCESS 0x0000 | |
366 | #define L2CAP_MR_PEND 0x0001 | |
367 | #define L2CAP_MR_BAD_ID 0x0002 | |
368 | #define L2CAP_MR_SAME_ID 0x0003 | |
369 | #define L2CAP_MR_NOT_SUPP 0x0004 | |
370 | #define L2CAP_MR_COLLISION 0x0005 | |
371 | #define L2CAP_MR_NOT_ALLOWED 0x0006 | |
372 | ||
373 | struct l2cap_move_chan_cfm { | |
374 | __le16 icid; | |
375 | __le16 result; | |
376 | } __packed; | |
377 | ||
378 | #define L2CAP_MC_CONFIRMED 0x0000 | |
379 | #define L2CAP_MC_UNCONFIRMED 0x0001 | |
380 | ||
381 | struct l2cap_move_chan_cfm_rsp { | |
382 | __le16 icid; | |
383 | } __packed; | |
384 | ||
1da177e4 | 385 | /* info type */ |
8d6765aa AE |
386 | #define L2CAP_IT_CL_MTU 0x0001 |
387 | #define L2CAP_IT_FEAT_MASK 0x0002 | |
388 | #define L2CAP_IT_FIXED_CHAN 0x0003 | |
1da177e4 LT |
389 | |
390 | /* info result */ | |
8d6765aa AE |
391 | #define L2CAP_IR_SUCCESS 0x0000 |
392 | #define L2CAP_IR_NOTSUPP 0x0001 | |
1da177e4 | 393 | |
de73115a CT |
394 | struct l2cap_conn_param_update_req { |
395 | __le16 min; | |
396 | __le16 max; | |
397 | __le16 latency; | |
398 | __le16 to_multiplier; | |
399 | } __packed; | |
400 | ||
401 | struct l2cap_conn_param_update_rsp { | |
402 | __le16 result; | |
403 | } __packed; | |
404 | ||
405 | /* Connection Parameters result */ | |
406 | #define L2CAP_CONN_PARAM_ACCEPTED 0x0000 | |
407 | #define L2CAP_CONN_PARAM_REJECTED 0x0001 | |
408 | ||
48454079 | 409 | /* ----- L2CAP channels and connections ----- */ |
39d5a3ee | 410 | struct srej_list { |
fb45de7d | 411 | __u16 tx_seq; |
39d5a3ee GP |
412 | struct list_head list; |
413 | }; | |
414 | ||
48454079 GP |
415 | struct l2cap_chan { |
416 | struct sock *sk; | |
8c1d787b GP |
417 | |
418 | struct l2cap_conn *conn; | |
419 | ||
89bc500e GP |
420 | __u8 state; |
421 | ||
71ba0e56 GP |
422 | atomic_t refcnt; |
423 | ||
fe4128e0 GP |
424 | __le16 psm; |
425 | __u16 dcid; | |
426 | __u16 scid; | |
4343478f | 427 | |
0c1bc5c6 GP |
428 | __u16 imtu; |
429 | __u16 omtu; | |
430 | __u16 flush_to; | |
431 | __u8 mode; | |
715ec005 | 432 | __u8 chan_type; |
2ea66482 | 433 | __u8 chan_policy; |
0c1bc5c6 GP |
434 | |
435 | __le16 sport; | |
436 | ||
4343478f | 437 | __u8 sec_level; |
4343478f | 438 | |
fc7f8a7e GP |
439 | __u8 ident; |
440 | ||
73ffa904 GP |
441 | __u8 conf_req[64]; |
442 | __u8 conf_len; | |
443 | __u8 num_conf_req; | |
444 | __u8 num_conf_rsp; | |
445 | ||
47d1ec61 GP |
446 | __u8 fcs; |
447 | ||
6327eb98 | 448 | __u16 tx_win; |
836be934 | 449 | __u16 tx_win_max; |
47d1ec61 GP |
450 | __u8 max_tx; |
451 | __u16 retrans_timeout; | |
452 | __u16 monitor_timeout; | |
453 | __u16 mps; | |
454 | ||
d5f7ac38 MM |
455 | __u8 tx_state; |
456 | __u8 rx_state; | |
457 | ||
c1360a1c | 458 | unsigned long conf_state; |
e2ab4353 | 459 | unsigned long conn_state; |
d57b0e8b | 460 | unsigned long flags; |
525cd185 | 461 | |
fb45de7d AE |
462 | __u16 next_tx_seq; |
463 | __u16 expected_ack_seq; | |
464 | __u16 expected_tx_seq; | |
0b209fae | 465 | __u16 buffer_seq; |
fb45de7d AE |
466 | __u16 buffer_seq_srej; |
467 | __u16 srej_save_reqseq; | |
d5f7ac38 | 468 | __u16 last_acked_seq; |
fb45de7d AE |
469 | __u16 frames_sent; |
470 | __u16 unacked_frames; | |
6a026610 | 471 | __u8 retry_count; |
d5f7ac38 | 472 | __u16 srej_queue_next; |
6a026610 | 473 | __u8 num_acked; |
6f61fd47 | 474 | __u16 sdu_len; |
6f61fd47 | 475 | struct sk_buff *sdu; |
84084a31 | 476 | struct sk_buff *sdu_last_frag; |
6f61fd47 | 477 | |
6327eb98 | 478 | __u16 remote_tx_win; |
2c03a7a4 GP |
479 | __u8 remote_max_tx; |
480 | __u16 remote_mps; | |
42e5c802 | 481 | |
5a9e7057 AE |
482 | __u8 local_id; |
483 | __u8 local_stype; | |
484 | __u16 local_msdu; | |
485 | __u32 local_sdu_itime; | |
486 | __u32 local_acc_lat; | |
487 | __u32 local_flush_to; | |
488 | ||
489 | __u8 remote_id; | |
490 | __u8 remote_stype; | |
491 | __u16 remote_msdu; | |
492 | __u32 remote_sdu_itime; | |
493 | __u32 remote_acc_lat; | |
494 | __u32 remote_flush_to; | |
495 | ||
721c4181 GP |
496 | struct delayed_work chan_timer; |
497 | struct delayed_work retrans_timer; | |
498 | struct delayed_work monitor_timer; | |
499 | struct delayed_work ack_timer; | |
500 | ||
58d35f87 GP |
501 | struct sk_buff *tx_send_head; |
502 | struct sk_buff_head tx_q; | |
f1c6775b | 503 | struct sk_buff_head srej_q; |
39d5a3ee | 504 | struct list_head srej_l; |
e92c8e70 | 505 | |
f64b993f GP |
506 | struct list_head list; |
507 | struct list_head global_l; | |
80808e43 | 508 | |
f64b993f GP |
509 | void *data; |
510 | struct l2cap_ops *ops; | |
c03b355e | 511 | struct mutex lock; |
80808e43 GP |
512 | }; |
513 | ||
514 | struct l2cap_ops { | |
f64b993f | 515 | char *name; |
80808e43 GP |
516 | |
517 | struct l2cap_chan *(*new_connection) (void *data); | |
23070494 | 518 | int (*recv) (void *data, struct sk_buff *skb); |
ba3bd0ee | 519 | void (*close) (void *data); |
89bc500e | 520 | void (*state_change) (void *data, int state); |
2f7719ce AE |
521 | struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan, |
522 | unsigned long len, int nb, int *err); | |
523 | ||
1da177e4 LT |
524 | }; |
525 | ||
526 | struct l2cap_conn { | |
f64b993f GP |
527 | struct hci_conn *hcon; |
528 | struct hci_chan *hchan; | |
1da177e4 | 529 | |
f64b993f GP |
530 | bdaddr_t *dst; |
531 | bdaddr_t *src; | |
1da177e4 | 532 | |
f64b993f | 533 | unsigned int mtu; |
1da177e4 | 534 | |
f64b993f GP |
535 | __u32 feat_mask; |
536 | __u8 fixed_chan_mask; | |
4e8402a3 | 537 | |
f64b993f GP |
538 | __u8 info_state; |
539 | __u8 info_ident; | |
4e8402a3 | 540 | |
f64b993f | 541 | struct delayed_work info_timer; |
4e8402a3 | 542 | |
f64b993f | 543 | spinlock_t lock; |
1da177e4 | 544 | |
f64b993f GP |
545 | struct sk_buff *rx_skb; |
546 | __u32 rx_len; | |
547 | __u8 tx_ident; | |
1da177e4 | 548 | |
f64b993f | 549 | __u8 disc_reason; |
2950f21a | 550 | |
f64b993f GP |
551 | struct delayed_work security_timer; |
552 | struct smp_chan *smp_chan; | |
5d3de7df | 553 | |
f64b993f GP |
554 | struct list_head chan_l; |
555 | struct mutex chan_lock; | |
1da177e4 LT |
556 | }; |
557 | ||
4e8402a3 | 558 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
984947dc MH |
559 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
560 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 | |
4e8402a3 | 561 | |
715ec005 GP |
562 | #define L2CAP_CHAN_RAW 1 |
563 | #define L2CAP_CHAN_CONN_LESS 2 | |
564 | #define L2CAP_CHAN_CONN_ORIENTED 3 | |
565 | ||
48454079 | 566 | /* ----- L2CAP socket info ----- */ |
1da177e4 LT |
567 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) |
568 | ||
569 | struct l2cap_pinfo { | |
f64b993f | 570 | struct bt_sock bt; |
48454079 | 571 | struct l2cap_chan *chan; |
f64b993f | 572 | struct sk_buff *rx_busy_skb; |
1da177e4 LT |
573 | }; |
574 | ||
c1360a1c GP |
575 | enum { |
576 | CONF_REQ_SENT, | |
577 | CONF_INPUT_DONE, | |
578 | CONF_OUTPUT_DONE, | |
579 | CONF_MTU_DONE, | |
580 | CONF_MODE_DONE, | |
581 | CONF_CONNECT_PEND, | |
582 | CONF_NO_FCS_RECV, | |
583 | CONF_STATE2_DEVICE, | |
6327eb98 | 584 | CONF_EWS_RECV, |
0e8b207e AE |
585 | CONF_LOC_CONF_PEND, |
586 | CONF_REM_CONF_PEND, | |
c1360a1c | 587 | }; |
f2fcfcd6 GP |
588 | |
589 | #define L2CAP_CONF_MAX_CONF_REQ 2 | |
590 | #define L2CAP_CONF_MAX_CONF_RSP 2 | |
861d6882 | 591 | |
e2ab4353 | 592 | enum { |
e2ab4353 GP |
593 | CONN_SREJ_SENT, |
594 | CONN_WAIT_F, | |
595 | CONN_SREJ_ACT, | |
596 | CONN_SEND_PBIT, | |
597 | CONN_REMOTE_BUSY, | |
598 | CONN_LOCAL_BUSY, | |
599 | CONN_REJ_ACT, | |
600 | CONN_SEND_FBIT, | |
601 | CONN_RNR_SENT, | |
e2ab4353 | 602 | }; |
e90bac06 | 603 | |
d57b0e8b AE |
604 | /* Definitions for flags in l2cap_chan */ |
605 | enum { | |
43bd0f32 | 606 | FLAG_ROLE_SWITCH, |
15770b1a | 607 | FLAG_FORCE_ACTIVE, |
ecf61bdb | 608 | FLAG_FORCE_RELIABLE, |
d57b0e8b | 609 | FLAG_FLUSHABLE, |
6327eb98 | 610 | FLAG_EXT_CTRL, |
5a9e7057 | 611 | FLAG_EFS_ENABLE, |
d57b0e8b AE |
612 | }; |
613 | ||
d5f7ac38 MM |
614 | enum { |
615 | L2CAP_TX_STATE_XMIT, | |
616 | L2CAP_TX_STATE_WAIT_F, | |
617 | }; | |
618 | ||
619 | enum { | |
620 | L2CAP_RX_STATE_RECV, | |
621 | L2CAP_RX_STATE_SREJ_SENT, | |
622 | }; | |
623 | ||
624 | enum { | |
625 | L2CAP_TXSEQ_EXPECTED, | |
626 | L2CAP_TXSEQ_EXPECTED_SREJ, | |
627 | L2CAP_TXSEQ_UNEXPECTED, | |
628 | L2CAP_TXSEQ_UNEXPECTED_SREJ, | |
629 | L2CAP_TXSEQ_DUPLICATE, | |
630 | L2CAP_TXSEQ_DUPLICATE_SREJ, | |
631 | L2CAP_TXSEQ_INVALID, | |
632 | L2CAP_TXSEQ_INVALID_IGNORE, | |
633 | }; | |
634 | ||
635 | enum { | |
636 | L2CAP_EV_DATA_REQUEST, | |
637 | L2CAP_EV_LOCAL_BUSY_DETECTED, | |
638 | L2CAP_EV_LOCAL_BUSY_CLEAR, | |
639 | L2CAP_EV_RECV_REQSEQ_AND_FBIT, | |
640 | L2CAP_EV_RECV_FBIT, | |
641 | L2CAP_EV_RETRANS_TO, | |
642 | L2CAP_EV_MONITOR_TO, | |
643 | L2CAP_EV_EXPLICIT_POLL, | |
644 | L2CAP_EV_RECV_IFRAME, | |
645 | L2CAP_EV_RECV_RR, | |
646 | L2CAP_EV_RECV_REJ, | |
647 | L2CAP_EV_RECV_RNR, | |
648 | L2CAP_EV_RECV_SREJ, | |
649 | L2CAP_EV_RECV_FRAME, | |
650 | }; | |
651 | ||
371fd835 UF |
652 | static inline void l2cap_chan_hold(struct l2cap_chan *c) |
653 | { | |
654 | atomic_inc(&c->refcnt); | |
655 | } | |
656 | ||
657 | static inline void l2cap_chan_put(struct l2cap_chan *c) | |
658 | { | |
659 | if (atomic_dec_and_test(&c->refcnt)) | |
660 | kfree(c); | |
661 | } | |
662 | ||
c03b355e AE |
663 | static inline void l2cap_chan_lock(struct l2cap_chan *chan) |
664 | { | |
665 | mutex_lock(&chan->lock); | |
666 | } | |
667 | ||
668 | static inline void l2cap_chan_unlock(struct l2cap_chan *chan) | |
669 | { | |
670 | mutex_unlock(&chan->lock); | |
671 | } | |
672 | ||
c2ec9c1b | 673 | static inline void l2cap_set_timer(struct l2cap_chan *chan, |
6f74b6f3 | 674 | struct delayed_work *work, long timeout) |
c2ec9c1b | 675 | { |
e05dcc32 | 676 | BT_DBG("chan %p state %s timeout %ld", chan, |
6f74b6f3 | 677 | state_to_string(chan->state), timeout); |
c2ec9c1b | 678 | |
6f74b6f3 AE |
679 | /* If delayed work cancelled do not hold(chan) |
680 | since it is already done with previous set_timer */ | |
17cd3f37 | 681 | if (!cancel_delayed_work(work)) |
371fd835 | 682 | l2cap_chan_hold(chan); |
6f74b6f3 | 683 | |
c2ec9c1b GP |
684 | schedule_delayed_work(work, timeout); |
685 | } | |
686 | ||
75b93b59 | 687 | static inline bool l2cap_clear_timer(struct l2cap_chan *chan, |
6f74b6f3 | 688 | struct delayed_work *work) |
c2ec9c1b | 689 | { |
75b93b59 SJ |
690 | bool ret; |
691 | ||
6f74b6f3 AE |
692 | /* put(chan) if delayed work cancelled otherwise it |
693 | is done in delayed work function */ | |
17cd3f37 | 694 | ret = cancel_delayed_work(work); |
75b93b59 | 695 | if (ret) |
371fd835 | 696 | l2cap_chan_put(chan); |
75b93b59 SJ |
697 | |
698 | return ret; | |
c2ec9c1b GP |
699 | } |
700 | ||
c9b66675 GP |
701 | #define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t)) |
702 | #define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer) | |
1a09bcb9 | 703 | #define __set_retrans_timer(c) l2cap_set_timer(c, &c->retrans_timer, \ |
b83ddfe2 | 704 | msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO)); |
1a09bcb9 GP |
705 | #define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer) |
706 | #define __set_monitor_timer(c) l2cap_set_timer(c, &c->monitor_timer, \ | |
b83ddfe2 | 707 | msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO)); |
1a09bcb9 GP |
708 | #define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer) |
709 | #define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \ | |
b83ddfe2 | 710 | msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO)); |
1a09bcb9 | 711 | #define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer) |
c74e560c | 712 | |
836be934 AE |
713 | static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2) |
714 | { | |
715 | int offset; | |
716 | ||
717 | offset = (seq1 - seq2) % (chan->tx_win_max + 1); | |
718 | if (offset < 0) | |
719 | offset += (chan->tx_win_max + 1); | |
720 | ||
721 | return offset; | |
722 | } | |
723 | ||
724 | static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq) | |
725 | { | |
726 | return (seq + 1) % (chan->tx_win_max + 1); | |
727 | } | |
728 | ||
42e5c802 | 729 | static inline int l2cap_tx_window_full(struct l2cap_chan *ch) |
1c2acffb | 730 | { |
1c2acffb GP |
731 | int sub; |
732 | ||
42e5c802 | 733 | sub = (ch->next_tx_seq - ch->expected_ack_seq) % 64; |
1c2acffb GP |
734 | |
735 | if (sub < 0) | |
736 | sub += 64; | |
737 | ||
2c03a7a4 | 738 | return sub == ch->remote_tx_win; |
1c2acffb GP |
739 | } |
740 | ||
0b209fae AE |
741 | static inline __u16 __get_reqseq(struct l2cap_chan *chan, __u32 ctrl) |
742 | { | |
743 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
744 | return (ctrl & L2CAP_EXT_CTRL_REQSEQ) >> | |
745 | L2CAP_EXT_CTRL_REQSEQ_SHIFT; | |
746 | else | |
747 | return (ctrl & L2CAP_CTRL_REQSEQ) >> L2CAP_CTRL_REQSEQ_SHIFT; | |
748 | } | |
749 | ||
750 | static inline __u32 __set_reqseq(struct l2cap_chan *chan, __u32 reqseq) | |
751 | { | |
752 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
753 | return (reqseq << L2CAP_EXT_CTRL_REQSEQ_SHIFT) & | |
754 | L2CAP_EXT_CTRL_REQSEQ; | |
755 | else | |
756 | return (reqseq << L2CAP_CTRL_REQSEQ_SHIFT) & L2CAP_CTRL_REQSEQ; | |
757 | } | |
fb45de7d AE |
758 | |
759 | static inline __u16 __get_txseq(struct l2cap_chan *chan, __u32 ctrl) | |
760 | { | |
761 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
762 | return (ctrl & L2CAP_EXT_CTRL_TXSEQ) >> | |
763 | L2CAP_EXT_CTRL_TXSEQ_SHIFT; | |
764 | else | |
765 | return (ctrl & L2CAP_CTRL_TXSEQ) >> L2CAP_CTRL_TXSEQ_SHIFT; | |
766 | } | |
767 | ||
768 | static inline __u32 __set_txseq(struct l2cap_chan *chan, __u32 txseq) | |
769 | { | |
770 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
771 | return (txseq << L2CAP_EXT_CTRL_TXSEQ_SHIFT) & | |
772 | L2CAP_EXT_CTRL_TXSEQ; | |
773 | else | |
774 | return (txseq << L2CAP_CTRL_TXSEQ_SHIFT) & L2CAP_CTRL_TXSEQ; | |
775 | } | |
776 | ||
793c2f1c AE |
777 | static inline bool __is_sframe(struct l2cap_chan *chan, __u32 ctrl) |
778 | { | |
779 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
780 | return ctrl & L2CAP_EXT_CTRL_FRAME_TYPE; | |
781 | else | |
782 | return ctrl & L2CAP_CTRL_FRAME_TYPE; | |
783 | } | |
784 | ||
785 | static inline __u32 __set_sframe(struct l2cap_chan *chan) | |
786 | { | |
787 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
788 | return L2CAP_EXT_CTRL_FRAME_TYPE; | |
789 | else | |
790 | return L2CAP_CTRL_FRAME_TYPE; | |
791 | } | |
792 | ||
7e0ef6ee AE |
793 | static inline __u8 __get_ctrl_sar(struct l2cap_chan *chan, __u32 ctrl) |
794 | { | |
795 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
796 | return (ctrl & L2CAP_EXT_CTRL_SAR) >> L2CAP_EXT_CTRL_SAR_SHIFT; | |
797 | else | |
798 | return (ctrl & L2CAP_CTRL_SAR) >> L2CAP_CTRL_SAR_SHIFT; | |
799 | } | |
800 | ||
801 | static inline __u32 __set_ctrl_sar(struct l2cap_chan *chan, __u32 sar) | |
802 | { | |
803 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
804 | return (sar << L2CAP_EXT_CTRL_SAR_SHIFT) & L2CAP_EXT_CTRL_SAR; | |
805 | else | |
806 | return (sar << L2CAP_CTRL_SAR_SHIFT) & L2CAP_CTRL_SAR; | |
807 | } | |
808 | ||
809 | static inline bool __is_sar_start(struct l2cap_chan *chan, __u32 ctrl) | |
810 | { | |
811 | return __get_ctrl_sar(chan, ctrl) == L2CAP_SAR_START; | |
812 | } | |
813 | ||
814 | static inline __u32 __get_sar_mask(struct l2cap_chan *chan) | |
815 | { | |
816 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
817 | return L2CAP_EXT_CTRL_SAR; | |
818 | else | |
819 | return L2CAP_CTRL_SAR; | |
820 | } | |
1da177e4 | 821 | |
ab784b73 AE |
822 | static inline __u8 __get_ctrl_super(struct l2cap_chan *chan, __u32 ctrl) |
823 | { | |
824 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
825 | return (ctrl & L2CAP_EXT_CTRL_SUPERVISE) >> | |
826 | L2CAP_EXT_CTRL_SUPER_SHIFT; | |
827 | else | |
828 | return (ctrl & L2CAP_CTRL_SUPERVISE) >> L2CAP_CTRL_SUPER_SHIFT; | |
829 | } | |
830 | ||
831 | static inline __u32 __set_ctrl_super(struct l2cap_chan *chan, __u32 super) | |
832 | { | |
833 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
834 | return (super << L2CAP_EXT_CTRL_SUPER_SHIFT) & | |
835 | L2CAP_EXT_CTRL_SUPERVISE; | |
836 | else | |
837 | return (super << L2CAP_CTRL_SUPER_SHIFT) & | |
838 | L2CAP_CTRL_SUPERVISE; | |
839 | } | |
840 | ||
03f6715d AE |
841 | static inline __u32 __set_ctrl_final(struct l2cap_chan *chan) |
842 | { | |
843 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
844 | return L2CAP_EXT_CTRL_FINAL; | |
845 | else | |
846 | return L2CAP_CTRL_FINAL; | |
847 | } | |
848 | ||
849 | static inline bool __is_ctrl_final(struct l2cap_chan *chan, __u32 ctrl) | |
850 | { | |
851 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
852 | return ctrl & L2CAP_EXT_CTRL_FINAL; | |
853 | else | |
854 | return ctrl & L2CAP_CTRL_FINAL; | |
855 | } | |
e3781735 AE |
856 | |
857 | static inline __u32 __set_ctrl_poll(struct l2cap_chan *chan) | |
858 | { | |
859 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
860 | return L2CAP_EXT_CTRL_POLL; | |
861 | else | |
862 | return L2CAP_CTRL_POLL; | |
863 | } | |
864 | ||
865 | static inline bool __is_ctrl_poll(struct l2cap_chan *chan, __u32 ctrl) | |
866 | { | |
867 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
868 | return ctrl & L2CAP_EXT_CTRL_POLL; | |
869 | else | |
870 | return ctrl & L2CAP_CTRL_POLL; | |
871 | } | |
88843ab0 AE |
872 | |
873 | static inline __u32 __get_control(struct l2cap_chan *chan, void *p) | |
874 | { | |
875 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
876 | return get_unaligned_le32(p); | |
877 | else | |
878 | return get_unaligned_le16(p); | |
879 | } | |
880 | ||
881 | static inline void __put_control(struct l2cap_chan *chan, __u32 control, | |
882 | void *p) | |
883 | { | |
884 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
885 | return put_unaligned_le32(control, p); | |
886 | else | |
887 | return put_unaligned_le16(control, p); | |
888 | } | |
889 | ||
890 | static inline __u8 __ctrl_size(struct l2cap_chan *chan) | |
891 | { | |
892 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) | |
893 | return L2CAP_EXT_HDR_SIZE - L2CAP_HDR_SIZE; | |
894 | else | |
895 | return L2CAP_ENH_HDR_SIZE - L2CAP_HDR_SIZE; | |
896 | } | |
1da177e4 | 897 | |
eb939922 | 898 | extern bool disable_ertm; |
bb58f747 GP |
899 | |
900 | int l2cap_init_sockets(void); | |
901 | void l2cap_cleanup_sockets(void); | |
902 | ||
8c1d787b | 903 | void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); |
dcba0dba | 904 | int __l2cap_wait_ack(struct sock *sk); |
68983259 | 905 | |
9e4425ff GP |
906 | int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm); |
907 | int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid); | |
908 | ||
23691d75 | 909 | struct l2cap_chan *l2cap_chan_create(struct sock *sk); |
0f852724 | 910 | void l2cap_chan_close(struct l2cap_chan *chan, int reason); |
23691d75 | 911 | void l2cap_chan_destroy(struct l2cap_chan *chan); |
cbe8fed4 | 912 | int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, |
03a00194 | 913 | bdaddr_t *dst); |
5e59b791 LAD |
914 | int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, |
915 | u32 priority); | |
e328140f | 916 | void l2cap_chan_busy(struct l2cap_chan *chan, int busy); |
d45fc423 | 917 | int l2cap_chan_check_security(struct l2cap_chan *chan); |
bb58f747 | 918 | |
1da177e4 | 919 | #endif /* __L2CAP_H */ |