Commit | Line | Data |
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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 | 30 | #include <asm/unaligned.h> |
abe84903 | 31 | #include <linux/atomic.h> |
88843ab0 | 32 | |
1da177e4 | 33 | /* L2CAP defaults */ |
47ec1dcd | 34 | #define L2CAP_DEFAULT_MTU 672 |
f2fcfcd6 | 35 | #define L2CAP_DEFAULT_MIN_MTU 48 |
8936fa6d AE |
36 | #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF |
37 | #define L2CAP_EFS_DEFAULT_FLUSH_TO 0xFFFFFFFF | |
1c2acffb | 38 | #define L2CAP_DEFAULT_TX_WINDOW 63 |
6327eb98 | 39 | #define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF |
e90bac06 | 40 | #define L2CAP_DEFAULT_MAX_TX 3 |
fa235562 | 41 | #define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */ |
e90bac06 | 42 | #define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */ |
0b4558e3 | 43 | #define L2CAP_DEFAULT_MAX_PDU_SIZE 1492 /* Sized for AMP packet */ |
c1b4f43b | 44 | #define L2CAP_DEFAULT_ACK_TO 200 |
8f7975b1 AE |
45 | #define L2CAP_DEFAULT_MAX_SDU_SIZE 0xFFFF |
46 | #define L2CAP_DEFAULT_SDU_ITIME 0xFFFFFFFF | |
47 | #define L2CAP_DEFAULT_ACC_LAT 0xFFFFFFFF | |
94122bbe | 48 | #define L2CAP_BREDR_MAX_PAYLOAD 1019 /* 3-DH5 packet */ |
8c3a4f00 | 49 | #define L2CAP_LE_MIN_MTU 23 |
1da177e4 | 50 | |
ba13ccd9 MH |
51 | #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100) |
52 | #define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000) | |
53 | #define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000) | |
54 | #define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000) | |
55 | #define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000) | |
5b155ef9 MM |
56 | #define L2CAP_MOVE_TIMEOUT msecs_to_jiffies(4000) |
57 | #define L2CAP_MOVE_ERTX_TIMEOUT msecs_to_jiffies(60000) | |
1da177e4 | 58 | |
466f8004 AE |
59 | #define L2CAP_A2MP_DEFAULT_MTU 670 |
60 | ||
1da177e4 LT |
61 | /* L2CAP socket address */ |
62 | struct sockaddr_l2 { | |
63 | sa_family_t l2_family; | |
8e036fc3 | 64 | __le16 l2_psm; |
1da177e4 | 65 | bdaddr_t l2_bdaddr; |
f29972de | 66 | __le16 l2_cid; |
43ef0b8b | 67 | __u8 l2_bdaddr_type; |
1da177e4 LT |
68 | }; |
69 | ||
70 | /* L2CAP socket options */ | |
71 | #define L2CAP_OPTIONS 0x01 | |
72 | struct l2cap_options { | |
73 | __u16 omtu; | |
74 | __u16 imtu; | |
75 | __u16 flush_to; | |
76 | __u8 mode; | |
fcc203c3 | 77 | __u8 fcs; |
68d7f0ce | 78 | __u8 max_tx; |
14b5aa71 | 79 | __u16 txwin_size; |
1da177e4 LT |
80 | }; |
81 | ||
82 | #define L2CAP_CONNINFO 0x02 | |
83 | struct l2cap_conninfo { | |
84 | __u16 hci_handle; | |
85 | __u8 dev_class[3]; | |
86 | }; | |
87 | ||
88 | #define L2CAP_LM 0x03 | |
89 | #define L2CAP_LM_MASTER 0x0001 | |
90 | #define L2CAP_LM_AUTH 0x0002 | |
91 | #define L2CAP_LM_ENCRYPT 0x0004 | |
92 | #define L2CAP_LM_TRUSTED 0x0008 | |
93 | #define L2CAP_LM_RELIABLE 0x0010 | |
94 | #define L2CAP_LM_SECURE 0x0020 | |
7d513e92 | 95 | #define L2CAP_LM_FIPS 0x0040 |
1da177e4 LT |
96 | |
97 | /* L2CAP command codes */ | |
47ec1dcd MH |
98 | #define L2CAP_COMMAND_REJ 0x01 |
99 | #define L2CAP_CONN_REQ 0x02 | |
100 | #define L2CAP_CONN_RSP 0x03 | |
101 | #define L2CAP_CONF_REQ 0x04 | |
102 | #define L2CAP_CONF_RSP 0x05 | |
103 | #define L2CAP_DISCONN_REQ 0x06 | |
104 | #define L2CAP_DISCONN_RSP 0x07 | |
105 | #define L2CAP_ECHO_REQ 0x08 | |
106 | #define L2CAP_ECHO_RSP 0x09 | |
107 | #define L2CAP_INFO_REQ 0x0a | |
108 | #define L2CAP_INFO_RSP 0x0b | |
38094c75 MM |
109 | #define L2CAP_CREATE_CHAN_REQ 0x0c |
110 | #define L2CAP_CREATE_CHAN_RSP 0x0d | |
111 | #define L2CAP_MOVE_CHAN_REQ 0x0e | |
112 | #define L2CAP_MOVE_CHAN_RSP 0x0f | |
113 | #define L2CAP_MOVE_CHAN_CFM 0x10 | |
114 | #define L2CAP_MOVE_CHAN_CFM_RSP 0x11 | |
3300d9a9 CT |
115 | #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12 |
116 | #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13 | |
ee5ec5cf JH |
117 | #define L2CAP_LE_CONN_REQ 0x14 |
118 | #define L2CAP_LE_CONN_RSP 0x15 | |
119 | #define L2CAP_LE_CREDITS 0x16 | |
47ec1dcd | 120 | |
a858393b | 121 | /* L2CAP extended feature mask */ |
47ec1dcd MH |
122 | #define L2CAP_FEAT_FLOWCTL 0x00000001 |
123 | #define L2CAP_FEAT_RETRANS 0x00000002 | |
a858393b | 124 | #define L2CAP_FEAT_BIDIR_QOS 0x00000004 |
47ec1dcd MH |
125 | #define L2CAP_FEAT_ERTM 0x00000008 |
126 | #define L2CAP_FEAT_STREAMING 0x00000010 | |
127 | #define L2CAP_FEAT_FCS 0x00000020 | |
a858393b | 128 | #define L2CAP_FEAT_EXT_FLOW 0x00000040 |
47ec1dcd | 129 | #define L2CAP_FEAT_FIXED_CHAN 0x00000080 |
a858393b AE |
130 | #define L2CAP_FEAT_EXT_WINDOW 0x00000100 |
131 | #define L2CAP_FEAT_UCD 0x00000200 | |
47ec1dcd MH |
132 | |
133 | /* L2CAP checksum option */ | |
134 | #define L2CAP_FCS_NONE 0x00 | |
135 | #define L2CAP_FCS_CRC16 0x01 | |
1da177e4 | 136 | |
d835ac0f | 137 | /* L2CAP fixed channels */ |
a6801ca9 | 138 | #define L2CAP_FC_SIG_BREDR 0x02 |
d40bffbc | 139 | #define L2CAP_FC_CONNLESS 0x04 |
d835ac0f | 140 | #define L2CAP_FC_A2MP 0x08 |
a6801ca9 MH |
141 | #define L2CAP_FC_ATT 0x10 |
142 | #define L2CAP_FC_SIG_LE 0x20 | |
143 | #define L2CAP_FC_SMP_LE 0x40 | |
d835ac0f | 144 | |
1c2acffb | 145 | /* L2CAP Control Field bit masks */ |
57253fd8 AE |
146 | #define L2CAP_CTRL_SAR 0xC000 |
147 | #define L2CAP_CTRL_REQSEQ 0x3F00 | |
148 | #define L2CAP_CTRL_TXSEQ 0x007E | |
149 | #define L2CAP_CTRL_SUPERVISE 0x000C | |
150 | ||
151 | #define L2CAP_CTRL_RETRANS 0x0080 | |
152 | #define L2CAP_CTRL_FINAL 0x0080 | |
153 | #define L2CAP_CTRL_POLL 0x0010 | |
154 | #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ | |
155 | ||
156 | #define L2CAP_CTRL_TXSEQ_SHIFT 1 | |
157 | #define L2CAP_CTRL_SUPER_SHIFT 2 | |
d5f7ac38 MM |
158 | #define L2CAP_CTRL_POLL_SHIFT 4 |
159 | #define L2CAP_CTRL_FINAL_SHIFT 7 | |
57253fd8 AE |
160 | #define L2CAP_CTRL_REQSEQ_SHIFT 8 |
161 | #define L2CAP_CTRL_SAR_SHIFT 14 | |
162 | ||
163 | /* L2CAP Extended Control Field bit mask */ | |
164 | #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000 | |
165 | #define L2CAP_EXT_CTRL_SAR 0x00030000 | |
166 | #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000 | |
167 | #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC | |
168 | ||
169 | #define L2CAP_EXT_CTRL_POLL 0x00040000 | |
170 | #define L2CAP_EXT_CTRL_FINAL 0x00000002 | |
171 | #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ | |
172 | ||
d5f7ac38 | 173 | #define L2CAP_EXT_CTRL_FINAL_SHIFT 1 |
57253fd8 AE |
174 | #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2 |
175 | #define L2CAP_EXT_CTRL_SAR_SHIFT 16 | |
176 | #define L2CAP_EXT_CTRL_SUPER_SHIFT 16 | |
d5f7ac38 | 177 | #define L2CAP_EXT_CTRL_POLL_SHIFT 18 |
57253fd8 | 178 | #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 |
1c2acffb GP |
179 | |
180 | /* L2CAP Supervisory Function */ | |
ab784b73 AE |
181 | #define L2CAP_SUPER_RR 0x00 |
182 | #define L2CAP_SUPER_REJ 0x01 | |
183 | #define L2CAP_SUPER_RNR 0x02 | |
184 | #define L2CAP_SUPER_SREJ 0x03 | |
1c2acffb GP |
185 | |
186 | /* L2CAP Segmentation and Reassembly */ | |
7e0ef6ee AE |
187 | #define L2CAP_SAR_UNSEGMENTED 0x00 |
188 | #define L2CAP_SAR_START 0x01 | |
189 | #define L2CAP_SAR_END 0x02 | |
190 | #define L2CAP_SAR_CONTINUE 0x03 | |
1c2acffb | 191 | |
e2fd318e | 192 | /* L2CAP Command rej. reasons */ |
8d6765aa AE |
193 | #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 |
194 | #define L2CAP_REJ_MTU_EXCEEDED 0x0001 | |
195 | #define L2CAP_REJ_INVALID_CID 0x0002 | |
e2fd318e | 196 | |
1da177e4 LT |
197 | /* L2CAP structures */ |
198 | struct l2cap_hdr { | |
8e036fc3 AV |
199 | __le16 len; |
200 | __le16 cid; | |
66c853cc | 201 | } __packed; |
1da177e4 | 202 | #define L2CAP_HDR_SIZE 4 |
d43cb289 AE |
203 | #define L2CAP_ENH_HDR_SIZE 6 |
204 | #define L2CAP_EXT_HDR_SIZE 8 | |
205 | ||
206 | #define L2CAP_FCS_SIZE 2 | |
207 | #define L2CAP_SDULEN_SIZE 2 | |
208 | #define L2CAP_PSMLEN_SIZE 2 | |
d5f7ac38 MM |
209 | #define L2CAP_ENH_CTRL_SIZE 2 |
210 | #define L2CAP_EXT_CTRL_SIZE 4 | |
1da177e4 LT |
211 | |
212 | struct l2cap_cmd_hdr { | |
213 | __u8 code; | |
214 | __u8 ident; | |
8e036fc3 | 215 | __le16 len; |
66c853cc | 216 | } __packed; |
1da177e4 LT |
217 | #define L2CAP_CMD_HDR_SIZE 4 |
218 | ||
e2fd318e IK |
219 | struct l2cap_cmd_rej_unk { |
220 | __le16 reason; | |
221 | } __packed; | |
222 | ||
223 | struct l2cap_cmd_rej_mtu { | |
8e036fc3 | 224 | __le16 reason; |
e2fd318e IK |
225 | __le16 max_mtu; |
226 | } __packed; | |
227 | ||
228 | struct l2cap_cmd_rej_cid { | |
229 | __le16 reason; | |
230 | __le16 scid; | |
231 | __le16 dcid; | |
66c853cc | 232 | } __packed; |
1da177e4 LT |
233 | |
234 | struct l2cap_conn_req { | |
8e036fc3 AV |
235 | __le16 psm; |
236 | __le16 scid; | |
66c853cc | 237 | } __packed; |
1da177e4 LT |
238 | |
239 | struct l2cap_conn_rsp { | |
8e036fc3 AV |
240 | __le16 dcid; |
241 | __le16 scid; | |
242 | __le16 result; | |
243 | __le16 status; | |
66c853cc | 244 | } __packed; |
1da177e4 | 245 | |
2983fd68 AE |
246 | /* protocol/service multiplexer (PSM) */ |
247 | #define L2CAP_PSM_SDP 0x0001 | |
248 | #define L2CAP_PSM_RFCOMM 0x0003 | |
3124b843 | 249 | #define L2CAP_PSM_3DSP 0x0021 |
2983fd68 | 250 | |
3f79410c | 251 | /* channel identifier */ |
8db4dc46 GP |
252 | #define L2CAP_CID_SIGNALING 0x0001 |
253 | #define L2CAP_CID_CONN_LESS 0x0002 | |
466f8004 | 254 | #define L2CAP_CID_A2MP 0x0003 |
073d1cf3 | 255 | #define L2CAP_CID_ATT 0x0004 |
acd7d370 VT |
256 | #define L2CAP_CID_LE_SIGNALING 0x0005 |
257 | #define L2CAP_CID_SMP 0x0006 | |
8db4dc46 GP |
258 | #define L2CAP_CID_DYN_START 0x0040 |
259 | #define L2CAP_CID_DYN_END 0xffff | |
e77af755 | 260 | #define L2CAP_CID_LE_DYN_END 0x007f |
8db4dc46 | 261 | |
38094c75 | 262 | /* connect/create channel results */ |
47ec1dcd MH |
263 | #define L2CAP_CR_SUCCESS 0x0000 |
264 | #define L2CAP_CR_PEND 0x0001 | |
265 | #define L2CAP_CR_BAD_PSM 0x0002 | |
266 | #define L2CAP_CR_SEC_BLOCK 0x0003 | |
267 | #define L2CAP_CR_NO_MEM 0x0004 | |
38094c75 | 268 | #define L2CAP_CR_BAD_AMP 0x0005 |
ee5ec5cf JH |
269 | #define L2CAP_CR_AUTHENTICATION 0x0005 |
270 | #define L2CAP_CR_AUTHORIZATION 0x0006 | |
271 | #define L2CAP_CR_BAD_KEY_SIZE 0x0007 | |
272 | #define L2CAP_CR_ENCRYPTION 0x0008 | |
1da177e4 | 273 | |
38094c75 | 274 | /* connect/create channel status */ |
47ec1dcd MH |
275 | #define L2CAP_CS_NO_INFO 0x0000 |
276 | #define L2CAP_CS_AUTHEN_PEND 0x0001 | |
277 | #define L2CAP_CS_AUTHOR_PEND 0x0002 | |
1da177e4 LT |
278 | |
279 | struct l2cap_conf_req { | |
8e036fc3 AV |
280 | __le16 dcid; |
281 | __le16 flags; | |
1da177e4 | 282 | __u8 data[0]; |
66c853cc | 283 | } __packed; |
1da177e4 LT |
284 | |
285 | struct l2cap_conf_rsp { | |
8e036fc3 AV |
286 | __le16 scid; |
287 | __le16 flags; | |
288 | __le16 result; | |
1da177e4 | 289 | __u8 data[0]; |
66c853cc | 290 | } __packed; |
1da177e4 | 291 | |
5dee9e7c MH |
292 | #define L2CAP_CONF_SUCCESS 0x0000 |
293 | #define L2CAP_CONF_UNACCEPT 0x0001 | |
294 | #define L2CAP_CONF_REJECT 0x0002 | |
295 | #define L2CAP_CONF_UNKNOWN 0x0003 | |
0e8b207e | 296 | #define L2CAP_CONF_PENDING 0x0004 |
5a9e7057 | 297 | #define L2CAP_CONF_EFS_REJECT 0x0005 |
1da177e4 | 298 | |
59e54bd1 AE |
299 | /* configuration req/rsp continuation flag */ |
300 | #define L2CAP_CONF_FLAG_CONTINUATION 0x0001 | |
301 | ||
1da177e4 LT |
302 | struct l2cap_conf_opt { |
303 | __u8 type; | |
304 | __u8 len; | |
305 | __u8 val[0]; | |
66c853cc | 306 | } __packed; |
1da177e4 LT |
307 | #define L2CAP_CONF_OPT_SIZE 2 |
308 | ||
589d2746 | 309 | #define L2CAP_CONF_HINT 0x80 |
47ec1dcd | 310 | #define L2CAP_CONF_MASK 0x7f |
589d2746 | 311 | |
1da177e4 LT |
312 | #define L2CAP_CONF_MTU 0x01 |
313 | #define L2CAP_CONF_FLUSH_TO 0x02 | |
314 | #define L2CAP_CONF_QOS 0x03 | |
315 | #define L2CAP_CONF_RFC 0x04 | |
47ec1dcd | 316 | #define L2CAP_CONF_FCS 0x05 |
5a9e7057 | 317 | #define L2CAP_CONF_EFS 0x06 |
6327eb98 | 318 | #define L2CAP_CONF_EWS 0x07 |
1da177e4 LT |
319 | |
320 | #define L2CAP_CONF_MAX_SIZE 22 | |
321 | ||
6464f35f MH |
322 | struct l2cap_conf_rfc { |
323 | __u8 mode; | |
324 | __u8 txwin_size; | |
325 | __u8 max_transmit; | |
326 | __le16 retrans_timeout; | |
327 | __le16 monitor_timeout; | |
328 | __le16 max_pdu_size; | |
66c853cc | 329 | } __packed; |
6464f35f MH |
330 | |
331 | #define L2CAP_MODE_BASIC 0x00 | |
332 | #define L2CAP_MODE_RETRANS 0x01 | |
333 | #define L2CAP_MODE_FLOWCTL 0x02 | |
47ec1dcd | 334 | #define L2CAP_MODE_ERTM 0x03 |
c6b03cf9 | 335 | #define L2CAP_MODE_STREAMING 0x04 |
6464f35f | 336 | |
38319713 JH |
337 | /* Unlike the above this one doesn't actually map to anything that would |
338 | * ever be sent over the air. Therefore, use a value that's unlikely to | |
339 | * ever be used in the BR/EDR configuration phase. | |
340 | */ | |
341 | #define L2CAP_MODE_LE_FLOWCTL 0x80 | |
342 | ||
5a9e7057 AE |
343 | struct l2cap_conf_efs { |
344 | __u8 id; | |
345 | __u8 stype; | |
346 | __le16 msdu; | |
347 | __le32 sdu_itime; | |
348 | __le32 acc_lat; | |
349 | __le32 flush_to; | |
350 | } __packed; | |
351 | ||
8f7975b1 AE |
352 | #define L2CAP_SERV_NOTRAFIC 0x00 |
353 | #define L2CAP_SERV_BESTEFFORT 0x01 | |
354 | #define L2CAP_SERV_GUARANTEED 0x02 | |
355 | ||
356 | #define L2CAP_BESTEFFORT_ID 0x01 | |
357 | ||
1da177e4 | 358 | struct l2cap_disconn_req { |
8e036fc3 AV |
359 | __le16 dcid; |
360 | __le16 scid; | |
66c853cc | 361 | } __packed; |
1da177e4 LT |
362 | |
363 | struct l2cap_disconn_rsp { | |
8e036fc3 AV |
364 | __le16 dcid; |
365 | __le16 scid; | |
66c853cc | 366 | } __packed; |
1da177e4 LT |
367 | |
368 | struct l2cap_info_req { | |
8e036fc3 | 369 | __le16 type; |
66c853cc | 370 | } __packed; |
1da177e4 LT |
371 | |
372 | struct l2cap_info_rsp { | |
8e036fc3 AV |
373 | __le16 type; |
374 | __le16 result; | |
1da177e4 | 375 | __u8 data[0]; |
66c853cc | 376 | } __packed; |
1da177e4 | 377 | |
38094c75 MM |
378 | struct l2cap_create_chan_req { |
379 | __le16 psm; | |
380 | __le16 scid; | |
381 | __u8 amp_id; | |
382 | } __packed; | |
383 | ||
384 | struct l2cap_create_chan_rsp { | |
385 | __le16 dcid; | |
386 | __le16 scid; | |
387 | __le16 result; | |
388 | __le16 status; | |
389 | } __packed; | |
390 | ||
391 | struct l2cap_move_chan_req { | |
392 | __le16 icid; | |
393 | __u8 dest_amp_id; | |
394 | } __packed; | |
395 | ||
396 | struct l2cap_move_chan_rsp { | |
397 | __le16 icid; | |
398 | __le16 result; | |
399 | } __packed; | |
400 | ||
401 | #define L2CAP_MR_SUCCESS 0x0000 | |
402 | #define L2CAP_MR_PEND 0x0001 | |
403 | #define L2CAP_MR_BAD_ID 0x0002 | |
404 | #define L2CAP_MR_SAME_ID 0x0003 | |
405 | #define L2CAP_MR_NOT_SUPP 0x0004 | |
406 | #define L2CAP_MR_COLLISION 0x0005 | |
407 | #define L2CAP_MR_NOT_ALLOWED 0x0006 | |
408 | ||
409 | struct l2cap_move_chan_cfm { | |
410 | __le16 icid; | |
411 | __le16 result; | |
412 | } __packed; | |
413 | ||
414 | #define L2CAP_MC_CONFIRMED 0x0000 | |
415 | #define L2CAP_MC_UNCONFIRMED 0x0001 | |
416 | ||
417 | struct l2cap_move_chan_cfm_rsp { | |
418 | __le16 icid; | |
419 | } __packed; | |
420 | ||
1da177e4 | 421 | /* info type */ |
8d6765aa AE |
422 | #define L2CAP_IT_CL_MTU 0x0001 |
423 | #define L2CAP_IT_FEAT_MASK 0x0002 | |
424 | #define L2CAP_IT_FIXED_CHAN 0x0003 | |
1da177e4 LT |
425 | |
426 | /* info result */ | |
8d6765aa AE |
427 | #define L2CAP_IR_SUCCESS 0x0000 |
428 | #define L2CAP_IR_NOTSUPP 0x0001 | |
1da177e4 | 429 | |
de73115a CT |
430 | struct l2cap_conn_param_update_req { |
431 | __le16 min; | |
432 | __le16 max; | |
433 | __le16 latency; | |
434 | __le16 to_multiplier; | |
435 | } __packed; | |
436 | ||
437 | struct l2cap_conn_param_update_rsp { | |
438 | __le16 result; | |
439 | } __packed; | |
440 | ||
441 | /* Connection Parameters result */ | |
442 | #define L2CAP_CONN_PARAM_ACCEPTED 0x0000 | |
443 | #define L2CAP_CONN_PARAM_REJECTED 0x0001 | |
444 | ||
ee5ec5cf JH |
445 | #define L2CAP_LE_MAX_CREDITS 10 |
446 | #define L2CAP_LE_DEFAULT_MPS 230 | |
447 | ||
448 | struct l2cap_le_conn_req { | |
449 | __le16 psm; | |
450 | __le16 scid; | |
451 | __le16 mtu; | |
452 | __le16 mps; | |
453 | __le16 credits; | |
454 | } __packed; | |
455 | ||
456 | struct l2cap_le_conn_rsp { | |
457 | __le16 dcid; | |
458 | __le16 mtu; | |
459 | __le16 mps; | |
460 | __le16 credits; | |
461 | __le16 result; | |
462 | } __packed; | |
463 | ||
464 | struct l2cap_le_credits { | |
465 | __le16 cid; | |
466 | __le16 credits; | |
467 | } __packed; | |
468 | ||
48454079 | 469 | /* ----- L2CAP channels and connections ----- */ |
3c588192 MM |
470 | struct l2cap_seq_list { |
471 | __u16 head; | |
472 | __u16 tail; | |
473 | __u16 mask; | |
474 | __u16 *list; | |
475 | }; | |
476 | ||
477 | #define L2CAP_SEQ_LIST_CLEAR 0xFFFF | |
478 | #define L2CAP_SEQ_LIST_TAIL 0x8000 | |
479 | ||
48454079 | 480 | struct l2cap_chan { |
8c1d787b | 481 | struct l2cap_conn *conn; |
08333283 MM |
482 | struct hci_conn *hs_hcon; |
483 | struct hci_chan *hs_hchan; | |
144ad330 | 484 | struct kref kref; |
abe84903 | 485 | atomic_t nesting; |
8c1d787b | 486 | |
89bc500e GP |
487 | __u8 state; |
488 | ||
7eafc59e | 489 | bdaddr_t dst; |
4f1654e0 | 490 | __u8 dst_type; |
7eafc59e | 491 | bdaddr_t src; |
4f1654e0 | 492 | __u8 src_type; |
fe4128e0 | 493 | __le16 psm; |
4f1654e0 | 494 | __le16 sport; |
fe4128e0 GP |
495 | __u16 dcid; |
496 | __u16 scid; | |
4343478f | 497 | |
0c1bc5c6 GP |
498 | __u16 imtu; |
499 | __u16 omtu; | |
500 | __u16 flush_to; | |
501 | __u8 mode; | |
715ec005 | 502 | __u8 chan_type; |
2ea66482 | 503 | __u8 chan_policy; |
0c1bc5c6 | 504 | |
4343478f | 505 | __u8 sec_level; |
4343478f | 506 | |
fc7f8a7e GP |
507 | __u8 ident; |
508 | ||
73ffa904 GP |
509 | __u8 conf_req[64]; |
510 | __u8 conf_len; | |
511 | __u8 num_conf_req; | |
512 | __u8 num_conf_rsp; | |
513 | ||
47d1ec61 GP |
514 | __u8 fcs; |
515 | ||
6327eb98 | 516 | __u16 tx_win; |
836be934 | 517 | __u16 tx_win_max; |
c20f8e35 | 518 | __u16 ack_win; |
47d1ec61 GP |
519 | __u8 max_tx; |
520 | __u16 retrans_timeout; | |
521 | __u16 monitor_timeout; | |
522 | __u16 mps; | |
523 | ||
0cd75f7e JH |
524 | __u16 tx_credits; |
525 | __u16 rx_credits; | |
526 | ||
d5f7ac38 MM |
527 | __u8 tx_state; |
528 | __u8 rx_state; | |
529 | ||
c1360a1c | 530 | unsigned long conf_state; |
e2ab4353 | 531 | unsigned long conn_state; |
d57b0e8b | 532 | unsigned long flags; |
525cd185 | 533 | |
fffadc08 | 534 | __u8 remote_amp_id; |
08333283 MM |
535 | __u8 local_amp_id; |
536 | __u8 move_id; | |
537 | __u8 move_state; | |
538 | __u8 move_role; | |
539 | ||
fb45de7d AE |
540 | __u16 next_tx_seq; |
541 | __u16 expected_ack_seq; | |
542 | __u16 expected_tx_seq; | |
0b209fae | 543 | __u16 buffer_seq; |
fb45de7d | 544 | __u16 srej_save_reqseq; |
d5f7ac38 | 545 | __u16 last_acked_seq; |
fb45de7d AE |
546 | __u16 frames_sent; |
547 | __u16 unacked_frames; | |
6a026610 | 548 | __u8 retry_count; |
6f61fd47 | 549 | __u16 sdu_len; |
6f61fd47 | 550 | struct sk_buff *sdu; |
84084a31 | 551 | struct sk_buff *sdu_last_frag; |
6f61fd47 | 552 | |
6327eb98 | 553 | __u16 remote_tx_win; |
2c03a7a4 GP |
554 | __u8 remote_max_tx; |
555 | __u16 remote_mps; | |
42e5c802 | 556 | |
5a9e7057 AE |
557 | __u8 local_id; |
558 | __u8 local_stype; | |
559 | __u16 local_msdu; | |
560 | __u32 local_sdu_itime; | |
561 | __u32 local_acc_lat; | |
562 | __u32 local_flush_to; | |
563 | ||
564 | __u8 remote_id; | |
565 | __u8 remote_stype; | |
566 | __u16 remote_msdu; | |
567 | __u32 remote_sdu_itime; | |
568 | __u32 remote_acc_lat; | |
569 | __u32 remote_flush_to; | |
570 | ||
721c4181 GP |
571 | struct delayed_work chan_timer; |
572 | struct delayed_work retrans_timer; | |
573 | struct delayed_work monitor_timer; | |
574 | struct delayed_work ack_timer; | |
575 | ||
58d35f87 GP |
576 | struct sk_buff *tx_send_head; |
577 | struct sk_buff_head tx_q; | |
f1c6775b | 578 | struct sk_buff_head srej_q; |
3c588192 MM |
579 | struct l2cap_seq_list srej_list; |
580 | struct l2cap_seq_list retrans_list; | |
e92c8e70 | 581 | |
f64b993f GP |
582 | struct list_head list; |
583 | struct list_head global_l; | |
80808e43 | 584 | |
f64b993f | 585 | void *data; |
67f86a45 | 586 | const struct l2cap_ops *ops; |
c03b355e | 587 | struct mutex lock; |
80808e43 GP |
588 | }; |
589 | ||
590 | struct l2cap_ops { | |
f64b993f | 591 | char *name; |
80808e43 | 592 | |
80b98027 GP |
593 | struct l2cap_chan *(*new_connection) (struct l2cap_chan *chan); |
594 | int (*recv) (struct l2cap_chan * chan, | |
595 | struct sk_buff *skb); | |
c0df7f6e | 596 | void (*teardown) (struct l2cap_chan *chan, int err); |
80b98027 GP |
597 | void (*close) (struct l2cap_chan *chan); |
598 | void (*state_change) (struct l2cap_chan *chan, | |
53f52121 | 599 | int state, int err); |
54a59aa2 | 600 | void (*ready) (struct l2cap_chan *chan); |
2dc4e510 | 601 | void (*defer) (struct l2cap_chan *chan); |
d97c899b | 602 | void (*resume) (struct l2cap_chan *chan); |
837776f7 | 603 | void (*suspend) (struct l2cap_chan *chan); |
5ec1bbe5 | 604 | void (*set_shutdown) (struct l2cap_chan *chan); |
8d836d71 | 605 | long (*get_sndtimeo) (struct l2cap_chan *chan); |
2f7719ce | 606 | struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan, |
d9fbd02b | 607 | unsigned long hdr_len, |
90338947 | 608 | unsigned long len, int nb); |
0498878b JR |
609 | int (*memcpy_fromiovec) (struct l2cap_chan *chan, |
610 | unsigned char *kdata, | |
56c39fb6 | 611 | struct msghdr *msg, |
0498878b | 612 | int len); |
1da177e4 LT |
613 | }; |
614 | ||
615 | struct l2cap_conn { | |
f64b993f GP |
616 | struct hci_conn *hcon; |
617 | struct hci_chan *hchan; | |
1da177e4 | 618 | |
f64b993f | 619 | unsigned int mtu; |
1da177e4 | 620 | |
f64b993f GP |
621 | __u32 feat_mask; |
622 | __u8 fixed_chan_mask; | |
848566b3 | 623 | bool hs_enabled; |
4e8402a3 | 624 | |
f64b993f GP |
625 | __u8 info_state; |
626 | __u8 info_ident; | |
4e8402a3 | 627 | |
f64b993f | 628 | struct delayed_work info_timer; |
4e8402a3 | 629 | |
f64b993f GP |
630 | struct sk_buff *rx_skb; |
631 | __u32 rx_len; | |
632 | __u8 tx_ident; | |
5a54e7c8 | 633 | struct mutex ident_lock; |
1da177e4 | 634 | |
61a939c6 JH |
635 | struct sk_buff_head pending_rx; |
636 | struct work_struct pending_rx_work; | |
637 | ||
f3d82d0c JH |
638 | struct work_struct id_addr_update_work; |
639 | ||
f64b993f | 640 | __u8 disc_reason; |
2950f21a | 641 | |
70db83c4 | 642 | struct l2cap_chan *smp; |
5d3de7df | 643 | |
f64b993f GP |
644 | struct list_head chan_l; |
645 | struct mutex chan_lock; | |
9c903e37 | 646 | struct kref ref; |
2c8e1411 DH |
647 | struct list_head users; |
648 | }; | |
649 | ||
650 | struct l2cap_user { | |
651 | struct list_head list; | |
652 | int (*probe) (struct l2cap_conn *conn, struct l2cap_user *user); | |
653 | void (*remove) (struct l2cap_conn *conn, struct l2cap_user *user); | |
1da177e4 LT |
654 | }; |
655 | ||
4e8402a3 | 656 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
984947dc MH |
657 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
658 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 | |
4e8402a3 | 659 | |
715ec005 GP |
660 | #define L2CAP_CHAN_RAW 1 |
661 | #define L2CAP_CHAN_CONN_LESS 2 | |
662 | #define L2CAP_CHAN_CONN_ORIENTED 3 | |
2338a7e0 | 663 | #define L2CAP_CHAN_FIXED 4 |
715ec005 | 664 | |
48454079 | 665 | /* ----- L2CAP socket info ----- */ |
1da177e4 LT |
666 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) |
667 | ||
668 | struct l2cap_pinfo { | |
f64b993f | 669 | struct bt_sock bt; |
48454079 | 670 | struct l2cap_chan *chan; |
f64b993f | 671 | struct sk_buff *rx_busy_skb; |
1da177e4 LT |
672 | }; |
673 | ||
c1360a1c GP |
674 | enum { |
675 | CONF_REQ_SENT, | |
676 | CONF_INPUT_DONE, | |
677 | CONF_OUTPUT_DONE, | |
678 | CONF_MTU_DONE, | |
679 | CONF_MODE_DONE, | |
680 | CONF_CONNECT_PEND, | |
f2592d3e | 681 | CONF_RECV_NO_FCS, |
c1360a1c | 682 | CONF_STATE2_DEVICE, |
6327eb98 | 683 | CONF_EWS_RECV, |
0e8b207e AE |
684 | CONF_LOC_CONF_PEND, |
685 | CONF_REM_CONF_PEND, | |
2827011f | 686 | CONF_NOT_COMPLETE, |
c1360a1c | 687 | }; |
f2fcfcd6 GP |
688 | |
689 | #define L2CAP_CONF_MAX_CONF_REQ 2 | |
690 | #define L2CAP_CONF_MAX_CONF_RSP 2 | |
861d6882 | 691 | |
e2ab4353 | 692 | enum { |
e2ab4353 GP |
693 | CONN_SREJ_SENT, |
694 | CONN_WAIT_F, | |
695 | CONN_SREJ_ACT, | |
696 | CONN_SEND_PBIT, | |
697 | CONN_REMOTE_BUSY, | |
698 | CONN_LOCAL_BUSY, | |
699 | CONN_REJ_ACT, | |
700 | CONN_SEND_FBIT, | |
701 | CONN_RNR_SENT, | |
e2ab4353 | 702 | }; |
e90bac06 | 703 | |
d57b0e8b AE |
704 | /* Definitions for flags in l2cap_chan */ |
705 | enum { | |
43bd0f32 | 706 | FLAG_ROLE_SWITCH, |
15770b1a | 707 | FLAG_FORCE_ACTIVE, |
ecf61bdb | 708 | FLAG_FORCE_RELIABLE, |
d57b0e8b | 709 | FLAG_FLUSHABLE, |
6327eb98 | 710 | FLAG_EXT_CTRL, |
5a9e7057 | 711 | FLAG_EFS_ENABLE, |
bdc25783 | 712 | FLAG_DEFER_SETUP, |
595177f3 | 713 | FLAG_LE_CONN_REQ_SENT, |
d52deb17 | 714 | FLAG_PENDING_SECURITY, |
c16900cf | 715 | FLAG_HOLD_HCI_CONN, |
d57b0e8b AE |
716 | }; |
717 | ||
abe84903 JH |
718 | /* Lock nesting levels for L2CAP channels. We need these because lockdep |
719 | * otherwise considers all channels equal and will e.g. complain about a | |
720 | * connection oriented channel triggering SMP procedures or a listening | |
721 | * channel creating and locking a child channel. | |
722 | */ | |
723 | enum { | |
724 | L2CAP_NESTING_SMP, | |
725 | L2CAP_NESTING_NORMAL, | |
726 | L2CAP_NESTING_PARENT, | |
727 | }; | |
728 | ||
d5f7ac38 MM |
729 | enum { |
730 | L2CAP_TX_STATE_XMIT, | |
731 | L2CAP_TX_STATE_WAIT_F, | |
732 | }; | |
733 | ||
734 | enum { | |
735 | L2CAP_RX_STATE_RECV, | |
736 | L2CAP_RX_STATE_SREJ_SENT, | |
08333283 MM |
737 | L2CAP_RX_STATE_MOVE, |
738 | L2CAP_RX_STATE_WAIT_P, | |
739 | L2CAP_RX_STATE_WAIT_F, | |
d5f7ac38 MM |
740 | }; |
741 | ||
742 | enum { | |
743 | L2CAP_TXSEQ_EXPECTED, | |
744 | L2CAP_TXSEQ_EXPECTED_SREJ, | |
745 | L2CAP_TXSEQ_UNEXPECTED, | |
746 | L2CAP_TXSEQ_UNEXPECTED_SREJ, | |
747 | L2CAP_TXSEQ_DUPLICATE, | |
748 | L2CAP_TXSEQ_DUPLICATE_SREJ, | |
749 | L2CAP_TXSEQ_INVALID, | |
750 | L2CAP_TXSEQ_INVALID_IGNORE, | |
751 | }; | |
752 | ||
753 | enum { | |
754 | L2CAP_EV_DATA_REQUEST, | |
755 | L2CAP_EV_LOCAL_BUSY_DETECTED, | |
756 | L2CAP_EV_LOCAL_BUSY_CLEAR, | |
757 | L2CAP_EV_RECV_REQSEQ_AND_FBIT, | |
758 | L2CAP_EV_RECV_FBIT, | |
759 | L2CAP_EV_RETRANS_TO, | |
760 | L2CAP_EV_MONITOR_TO, | |
761 | L2CAP_EV_EXPLICIT_POLL, | |
762 | L2CAP_EV_RECV_IFRAME, | |
763 | L2CAP_EV_RECV_RR, | |
764 | L2CAP_EV_RECV_REJ, | |
765 | L2CAP_EV_RECV_RNR, | |
766 | L2CAP_EV_RECV_SREJ, | |
767 | L2CAP_EV_RECV_FRAME, | |
768 | }; | |
769 | ||
08333283 MM |
770 | enum { |
771 | L2CAP_MOVE_ROLE_NONE, | |
772 | L2CAP_MOVE_ROLE_INITIATOR, | |
773 | L2CAP_MOVE_ROLE_RESPONDER, | |
774 | }; | |
775 | ||
776 | enum { | |
777 | L2CAP_MOVE_STABLE, | |
778 | L2CAP_MOVE_WAIT_REQ, | |
779 | L2CAP_MOVE_WAIT_RSP, | |
780 | L2CAP_MOVE_WAIT_RSP_SUCCESS, | |
781 | L2CAP_MOVE_WAIT_CONFIRM, | |
782 | L2CAP_MOVE_WAIT_CONFIRM_RSP, | |
783 | L2CAP_MOVE_WAIT_LOGICAL_COMP, | |
784 | L2CAP_MOVE_WAIT_LOGICAL_CFM, | |
785 | L2CAP_MOVE_WAIT_LOCAL_BUSY, | |
786 | L2CAP_MOVE_WAIT_PREPARE, | |
787 | }; | |
788 | ||
30648372 JK |
789 | void l2cap_chan_hold(struct l2cap_chan *c); |
790 | void l2cap_chan_put(struct l2cap_chan *c); | |
371fd835 | 791 | |
c03b355e AE |
792 | static inline void l2cap_chan_lock(struct l2cap_chan *chan) |
793 | { | |
abe84903 | 794 | mutex_lock_nested(&chan->lock, atomic_read(&chan->nesting)); |
c03b355e AE |
795 | } |
796 | ||
797 | static inline void l2cap_chan_unlock(struct l2cap_chan *chan) | |
798 | { | |
799 | mutex_unlock(&chan->lock); | |
800 | } | |
801 | ||
c2ec9c1b | 802 | static inline void l2cap_set_timer(struct l2cap_chan *chan, |
6f74b6f3 | 803 | struct delayed_work *work, long timeout) |
c2ec9c1b | 804 | { |
e05dcc32 | 805 | BT_DBG("chan %p state %s timeout %ld", chan, |
6f74b6f3 | 806 | state_to_string(chan->state), timeout); |
c2ec9c1b | 807 | |
6f74b6f3 AE |
808 | /* If delayed work cancelled do not hold(chan) |
809 | since it is already done with previous set_timer */ | |
17cd3f37 | 810 | if (!cancel_delayed_work(work)) |
371fd835 | 811 | l2cap_chan_hold(chan); |
6f74b6f3 | 812 | |
c2ec9c1b GP |
813 | schedule_delayed_work(work, timeout); |
814 | } | |
815 | ||
75b93b59 | 816 | static inline bool l2cap_clear_timer(struct l2cap_chan *chan, |
6f74b6f3 | 817 | struct delayed_work *work) |
c2ec9c1b | 818 | { |
75b93b59 SJ |
819 | bool ret; |
820 | ||
6f74b6f3 AE |
821 | /* put(chan) if delayed work cancelled otherwise it |
822 | is done in delayed work function */ | |
17cd3f37 | 823 | ret = cancel_delayed_work(work); |
75b93b59 | 824 | if (ret) |
371fd835 | 825 | l2cap_chan_put(chan); |
75b93b59 SJ |
826 | |
827 | return ret; | |
c2ec9c1b GP |
828 | } |
829 | ||
c9b66675 GP |
830 | #define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t)) |
831 | #define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer) | |
1a09bcb9 | 832 | #define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer) |
1a09bcb9 GP |
833 | #define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer) |
834 | #define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \ | |
b83ddfe2 | 835 | msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO)); |
1a09bcb9 | 836 | #define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer) |
c74e560c | 837 | |
836be934 AE |
838 | static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2) |
839 | { | |
5a364bd3 MM |
840 | if (seq1 >= seq2) |
841 | return seq1 - seq2; | |
842 | else | |
843 | return chan->tx_win_max + 1 - seq2 + seq1; | |
836be934 AE |
844 | } |
845 | ||
846 | static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq) | |
847 | { | |
848 | return (seq + 1) % (chan->tx_win_max + 1); | |
849 | } | |
850 | ||
7e1af8a3 GP |
851 | static inline struct l2cap_chan *l2cap_chan_no_new_connection(struct l2cap_chan *chan) |
852 | { | |
853 | return NULL; | |
854 | } | |
855 | ||
f193844c JH |
856 | static inline int l2cap_chan_no_recv(struct l2cap_chan *chan, struct sk_buff *skb) |
857 | { | |
858 | return -ENOSYS; | |
859 | } | |
860 | ||
861 | static inline struct sk_buff *l2cap_chan_no_alloc_skb(struct l2cap_chan *chan, | |
862 | unsigned long hdr_len, | |
863 | unsigned long len, int nb) | |
864 | { | |
865 | return ERR_PTR(-ENOSYS); | |
866 | } | |
867 | ||
7e1af8a3 GP |
868 | static inline void l2cap_chan_no_teardown(struct l2cap_chan *chan, int err) |
869 | { | |
870 | } | |
871 | ||
f193844c JH |
872 | static inline void l2cap_chan_no_close(struct l2cap_chan *chan) |
873 | { | |
874 | } | |
875 | ||
7e1af8a3 GP |
876 | static inline void l2cap_chan_no_ready(struct l2cap_chan *chan) |
877 | { | |
878 | } | |
1da177e4 | 879 | |
f193844c JH |
880 | static inline void l2cap_chan_no_state_change(struct l2cap_chan *chan, |
881 | int state, int err) | |
882 | { | |
883 | } | |
884 | ||
2dc4e510 GP |
885 | static inline void l2cap_chan_no_defer(struct l2cap_chan *chan) |
886 | { | |
887 | } | |
888 | ||
f193844c JH |
889 | static inline void l2cap_chan_no_suspend(struct l2cap_chan *chan) |
890 | { | |
891 | } | |
892 | ||
2ce5fb51 MH |
893 | static inline void l2cap_chan_no_resume(struct l2cap_chan *chan) |
894 | { | |
895 | } | |
896 | ||
5ec1bbe5 GP |
897 | static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan) |
898 | { | |
899 | } | |
900 | ||
8d836d71 GP |
901 | static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan) |
902 | { | |
903 | return 0; | |
904 | } | |
905 | ||
0498878b JR |
906 | static inline int l2cap_chan_no_memcpy_fromiovec(struct l2cap_chan *chan, |
907 | unsigned char *kdata, | |
56c39fb6 | 908 | struct msghdr *msg, |
0498878b JR |
909 | int len) |
910 | { | |
911 | /* Following is safe since for compiler definitions of kvec and | |
912 | * iovec are identical, yielding the same in-core layout and alignment | |
913 | */ | |
c0371da6 | 914 | struct kvec *vec = (struct kvec *)msg->msg_iter.iov; |
0498878b JR |
915 | |
916 | while (len > 0) { | |
917 | if (vec->iov_len) { | |
918 | int copy = min_t(unsigned int, len, vec->iov_len); | |
919 | memcpy(kdata, vec->iov_base, copy); | |
920 | len -= copy; | |
921 | kdata += copy; | |
922 | vec->iov_base += copy; | |
923 | vec->iov_len -= copy; | |
924 | } | |
925 | vec++; | |
926 | } | |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
eb939922 | 931 | extern bool disable_ertm; |
bb58f747 GP |
932 | |
933 | int l2cap_init_sockets(void); | |
934 | void l2cap_cleanup_sockets(void); | |
b3916db3 | 935 | bool l2cap_is_socket(struct socket *sock); |
bb58f747 | 936 | |
27e2d4c8 | 937 | void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan); |
8c1d787b | 938 | void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); |
68983259 | 939 | |
9e4425ff GP |
940 | int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm); |
941 | int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid); | |
942 | ||
eef1d9b6 | 943 | struct l2cap_chan *l2cap_chan_create(void); |
0f852724 | 944 | void l2cap_chan_close(struct l2cap_chan *chan, int reason); |
cbe8fed4 | 945 | int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, |
8e9f9892 | 946 | bdaddr_t *dst, u8 dst_type); |
8d46321c | 947 | int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len); |
e328140f | 948 | void l2cap_chan_busy(struct l2cap_chan *chan, int busy); |
e7cafc45 | 949 | int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator); |
bd4b1653 | 950 | void l2cap_chan_set_defaults(struct l2cap_chan *chan); |
466f8004 AE |
951 | int l2cap_ertm_init(struct l2cap_chan *chan); |
952 | void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); | |
93c3e8f5 | 953 | void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); |
466f8004 | 954 | void l2cap_chan_del(struct l2cap_chan *chan, int err); |
2766be48 | 955 | void l2cap_send_conn_req(struct l2cap_chan *chan); |
3f7a56c4 | 956 | void l2cap_move_start(struct l2cap_chan *chan); |
27695fb4 AE |
957 | void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, |
958 | u8 status); | |
a514b17f | 959 | void __l2cap_physical_cfm(struct l2cap_chan *chan, int result); |
bb58f747 | 960 | |
51bb8457 | 961 | struct l2cap_conn *l2cap_conn_get(struct l2cap_conn *conn); |
9c903e37 DH |
962 | void l2cap_conn_put(struct l2cap_conn *conn); |
963 | ||
2c8e1411 DH |
964 | int l2cap_register_user(struct l2cap_conn *conn, struct l2cap_user *user); |
965 | void l2cap_unregister_user(struct l2cap_conn *conn, struct l2cap_user *user); | |
966 | ||
1da177e4 | 967 | #endif /* __L2CAP_H */ |