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 | 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 |
da49b602 | 50 | #define L2CAP_ECRED_CONN_SCID_MAX 5 |
1da177e4 | 51 | |
ba13ccd9 MH |
52 | #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100) |
53 | #define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000) | |
54 | #define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000) | |
55 | #define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000) | |
56 | #define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000) | |
5b155ef9 MM |
57 | #define L2CAP_MOVE_TIMEOUT msecs_to_jiffies(4000) |
58 | #define L2CAP_MOVE_ERTX_TIMEOUT msecs_to_jiffies(60000) | |
cb02a255 | 59 | #define L2CAP_WAIT_ACK_POLL_PERIOD msecs_to_jiffies(200) |
e432c72c | 60 | #define L2CAP_WAIT_ACK_TIMEOUT msecs_to_jiffies(10000) |
1da177e4 | 61 | |
466f8004 AE |
62 | #define L2CAP_A2MP_DEFAULT_MTU 670 |
63 | ||
1da177e4 LT |
64 | /* L2CAP socket address */ |
65 | struct sockaddr_l2 { | |
66 | sa_family_t l2_family; | |
8e036fc3 | 67 | __le16 l2_psm; |
1da177e4 | 68 | bdaddr_t l2_bdaddr; |
f29972de | 69 | __le16 l2_cid; |
43ef0b8b | 70 | __u8 l2_bdaddr_type; |
1da177e4 LT |
71 | }; |
72 | ||
73 | /* L2CAP socket options */ | |
74 | #define L2CAP_OPTIONS 0x01 | |
75 | struct l2cap_options { | |
76 | __u16 omtu; | |
77 | __u16 imtu; | |
78 | __u16 flush_to; | |
79 | __u8 mode; | |
fcc203c3 | 80 | __u8 fcs; |
68d7f0ce | 81 | __u8 max_tx; |
14b5aa71 | 82 | __u16 txwin_size; |
1da177e4 LT |
83 | }; |
84 | ||
85 | #define L2CAP_CONNINFO 0x02 | |
86 | struct l2cap_conninfo { | |
87 | __u16 hci_handle; | |
88 | __u8 dev_class[3]; | |
89 | }; | |
90 | ||
91 | #define L2CAP_LM 0x03 | |
92 | #define L2CAP_LM_MASTER 0x0001 | |
93 | #define L2CAP_LM_AUTH 0x0002 | |
94 | #define L2CAP_LM_ENCRYPT 0x0004 | |
95 | #define L2CAP_LM_TRUSTED 0x0008 | |
96 | #define L2CAP_LM_RELIABLE 0x0010 | |
97 | #define L2CAP_LM_SECURE 0x0020 | |
7d513e92 | 98 | #define L2CAP_LM_FIPS 0x0040 |
1da177e4 LT |
99 | |
100 | /* L2CAP command codes */ | |
47ec1dcd MH |
101 | #define L2CAP_COMMAND_REJ 0x01 |
102 | #define L2CAP_CONN_REQ 0x02 | |
103 | #define L2CAP_CONN_RSP 0x03 | |
104 | #define L2CAP_CONF_REQ 0x04 | |
105 | #define L2CAP_CONF_RSP 0x05 | |
106 | #define L2CAP_DISCONN_REQ 0x06 | |
107 | #define L2CAP_DISCONN_RSP 0x07 | |
108 | #define L2CAP_ECHO_REQ 0x08 | |
109 | #define L2CAP_ECHO_RSP 0x09 | |
110 | #define L2CAP_INFO_REQ 0x0a | |
111 | #define L2CAP_INFO_RSP 0x0b | |
38094c75 MM |
112 | #define L2CAP_CREATE_CHAN_REQ 0x0c |
113 | #define L2CAP_CREATE_CHAN_RSP 0x0d | |
114 | #define L2CAP_MOVE_CHAN_REQ 0x0e | |
115 | #define L2CAP_MOVE_CHAN_RSP 0x0f | |
116 | #define L2CAP_MOVE_CHAN_CFM 0x10 | |
117 | #define L2CAP_MOVE_CHAN_CFM_RSP 0x11 | |
3300d9a9 CT |
118 | #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12 |
119 | #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13 | |
ee5ec5cf JH |
120 | #define L2CAP_LE_CONN_REQ 0x14 |
121 | #define L2CAP_LE_CONN_RSP 0x15 | |
122 | #define L2CAP_LE_CREDITS 0x16 | |
14572096 LAD |
123 | #define L2CAP_ECRED_CONN_REQ 0x17 |
124 | #define L2CAP_ECRED_CONN_RSP 0x18 | |
125 | #define L2CAP_ECRED_RECONF_REQ 0x19 | |
126 | #define L2CAP_ECRED_RECONF_RSP 0x1a | |
47ec1dcd | 127 | |
a858393b | 128 | /* L2CAP extended feature mask */ |
47ec1dcd MH |
129 | #define L2CAP_FEAT_FLOWCTL 0x00000001 |
130 | #define L2CAP_FEAT_RETRANS 0x00000002 | |
a858393b | 131 | #define L2CAP_FEAT_BIDIR_QOS 0x00000004 |
47ec1dcd MH |
132 | #define L2CAP_FEAT_ERTM 0x00000008 |
133 | #define L2CAP_FEAT_STREAMING 0x00000010 | |
134 | #define L2CAP_FEAT_FCS 0x00000020 | |
a858393b | 135 | #define L2CAP_FEAT_EXT_FLOW 0x00000040 |
47ec1dcd | 136 | #define L2CAP_FEAT_FIXED_CHAN 0x00000080 |
a858393b AE |
137 | #define L2CAP_FEAT_EXT_WINDOW 0x00000100 |
138 | #define L2CAP_FEAT_UCD 0x00000200 | |
47ec1dcd MH |
139 | |
140 | /* L2CAP checksum option */ | |
141 | #define L2CAP_FCS_NONE 0x00 | |
142 | #define L2CAP_FCS_CRC16 0x01 | |
1da177e4 | 143 | |
d835ac0f | 144 | /* L2CAP fixed channels */ |
a6801ca9 | 145 | #define L2CAP_FC_SIG_BREDR 0x02 |
d40bffbc | 146 | #define L2CAP_FC_CONNLESS 0x04 |
d835ac0f | 147 | #define L2CAP_FC_A2MP 0x08 |
a6801ca9 MH |
148 | #define L2CAP_FC_ATT 0x10 |
149 | #define L2CAP_FC_SIG_LE 0x20 | |
150 | #define L2CAP_FC_SMP_LE 0x40 | |
ef8efe4b | 151 | #define L2CAP_FC_SMP_BREDR 0x80 |
d835ac0f | 152 | |
1c2acffb | 153 | /* L2CAP Control Field bit masks */ |
57253fd8 AE |
154 | #define L2CAP_CTRL_SAR 0xC000 |
155 | #define L2CAP_CTRL_REQSEQ 0x3F00 | |
156 | #define L2CAP_CTRL_TXSEQ 0x007E | |
157 | #define L2CAP_CTRL_SUPERVISE 0x000C | |
158 | ||
159 | #define L2CAP_CTRL_RETRANS 0x0080 | |
160 | #define L2CAP_CTRL_FINAL 0x0080 | |
161 | #define L2CAP_CTRL_POLL 0x0010 | |
162 | #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ | |
163 | ||
164 | #define L2CAP_CTRL_TXSEQ_SHIFT 1 | |
165 | #define L2CAP_CTRL_SUPER_SHIFT 2 | |
d5f7ac38 MM |
166 | #define L2CAP_CTRL_POLL_SHIFT 4 |
167 | #define L2CAP_CTRL_FINAL_SHIFT 7 | |
57253fd8 AE |
168 | #define L2CAP_CTRL_REQSEQ_SHIFT 8 |
169 | #define L2CAP_CTRL_SAR_SHIFT 14 | |
170 | ||
171 | /* L2CAP Extended Control Field bit mask */ | |
172 | #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000 | |
173 | #define L2CAP_EXT_CTRL_SAR 0x00030000 | |
174 | #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000 | |
175 | #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC | |
176 | ||
177 | #define L2CAP_EXT_CTRL_POLL 0x00040000 | |
178 | #define L2CAP_EXT_CTRL_FINAL 0x00000002 | |
179 | #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ | |
180 | ||
d5f7ac38 | 181 | #define L2CAP_EXT_CTRL_FINAL_SHIFT 1 |
57253fd8 AE |
182 | #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2 |
183 | #define L2CAP_EXT_CTRL_SAR_SHIFT 16 | |
184 | #define L2CAP_EXT_CTRL_SUPER_SHIFT 16 | |
d5f7ac38 | 185 | #define L2CAP_EXT_CTRL_POLL_SHIFT 18 |
57253fd8 | 186 | #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 |
1c2acffb GP |
187 | |
188 | /* L2CAP Supervisory Function */ | |
ab784b73 AE |
189 | #define L2CAP_SUPER_RR 0x00 |
190 | #define L2CAP_SUPER_REJ 0x01 | |
191 | #define L2CAP_SUPER_RNR 0x02 | |
192 | #define L2CAP_SUPER_SREJ 0x03 | |
1c2acffb GP |
193 | |
194 | /* L2CAP Segmentation and Reassembly */ | |
7e0ef6ee AE |
195 | #define L2CAP_SAR_UNSEGMENTED 0x00 |
196 | #define L2CAP_SAR_START 0x01 | |
197 | #define L2CAP_SAR_END 0x02 | |
198 | #define L2CAP_SAR_CONTINUE 0x03 | |
1c2acffb | 199 | |
e2fd318e | 200 | /* L2CAP Command rej. reasons */ |
8d6765aa AE |
201 | #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 |
202 | #define L2CAP_REJ_MTU_EXCEEDED 0x0001 | |
203 | #define L2CAP_REJ_INVALID_CID 0x0002 | |
e2fd318e | 204 | |
1da177e4 LT |
205 | /* L2CAP structures */ |
206 | struct l2cap_hdr { | |
8e036fc3 AV |
207 | __le16 len; |
208 | __le16 cid; | |
66c853cc | 209 | } __packed; |
1da177e4 | 210 | #define L2CAP_HDR_SIZE 4 |
d43cb289 AE |
211 | #define L2CAP_ENH_HDR_SIZE 6 |
212 | #define L2CAP_EXT_HDR_SIZE 8 | |
213 | ||
214 | #define L2CAP_FCS_SIZE 2 | |
215 | #define L2CAP_SDULEN_SIZE 2 | |
216 | #define L2CAP_PSMLEN_SIZE 2 | |
d5f7ac38 MM |
217 | #define L2CAP_ENH_CTRL_SIZE 2 |
218 | #define L2CAP_EXT_CTRL_SIZE 4 | |
1da177e4 LT |
219 | |
220 | struct l2cap_cmd_hdr { | |
221 | __u8 code; | |
222 | __u8 ident; | |
8e036fc3 | 223 | __le16 len; |
66c853cc | 224 | } __packed; |
1da177e4 LT |
225 | #define L2CAP_CMD_HDR_SIZE 4 |
226 | ||
e2fd318e IK |
227 | struct l2cap_cmd_rej_unk { |
228 | __le16 reason; | |
229 | } __packed; | |
230 | ||
231 | struct l2cap_cmd_rej_mtu { | |
8e036fc3 | 232 | __le16 reason; |
e2fd318e IK |
233 | __le16 max_mtu; |
234 | } __packed; | |
235 | ||
236 | struct l2cap_cmd_rej_cid { | |
237 | __le16 reason; | |
238 | __le16 scid; | |
239 | __le16 dcid; | |
66c853cc | 240 | } __packed; |
1da177e4 LT |
241 | |
242 | struct l2cap_conn_req { | |
8e036fc3 AV |
243 | __le16 psm; |
244 | __le16 scid; | |
66c853cc | 245 | } __packed; |
1da177e4 LT |
246 | |
247 | struct l2cap_conn_rsp { | |
8e036fc3 AV |
248 | __le16 dcid; |
249 | __le16 scid; | |
250 | __le16 result; | |
251 | __le16 status; | |
66c853cc | 252 | } __packed; |
1da177e4 | 253 | |
2983fd68 AE |
254 | /* protocol/service multiplexer (PSM) */ |
255 | #define L2CAP_PSM_SDP 0x0001 | |
256 | #define L2CAP_PSM_RFCOMM 0x0003 | |
3124b843 | 257 | #define L2CAP_PSM_3DSP 0x0021 |
cab9e3a0 | 258 | #define L2CAP_PSM_IPSP 0x0023 /* 6LoWPAN */ |
2983fd68 | 259 | |
114f9f1e JH |
260 | #define L2CAP_PSM_DYN_START 0x1001 |
261 | #define L2CAP_PSM_DYN_END 0xffff | |
262 | #define L2CAP_PSM_AUTO_END 0x10ff | |
263 | #define L2CAP_PSM_LE_DYN_START 0x0080 | |
264 | #define L2CAP_PSM_LE_DYN_END 0x00ff | |
265 | ||
3f79410c | 266 | /* channel identifier */ |
8db4dc46 GP |
267 | #define L2CAP_CID_SIGNALING 0x0001 |
268 | #define L2CAP_CID_CONN_LESS 0x0002 | |
466f8004 | 269 | #define L2CAP_CID_A2MP 0x0003 |
073d1cf3 | 270 | #define L2CAP_CID_ATT 0x0004 |
acd7d370 VT |
271 | #define L2CAP_CID_LE_SIGNALING 0x0005 |
272 | #define L2CAP_CID_SMP 0x0006 | |
ef8efe4b | 273 | #define L2CAP_CID_SMP_BREDR 0x0007 |
8db4dc46 GP |
274 | #define L2CAP_CID_DYN_START 0x0040 |
275 | #define L2CAP_CID_DYN_END 0xffff | |
e77af755 | 276 | #define L2CAP_CID_LE_DYN_END 0x007f |
8db4dc46 | 277 | |
38094c75 | 278 | /* connect/create channel results */ |
47ec1dcd MH |
279 | #define L2CAP_CR_SUCCESS 0x0000 |
280 | #define L2CAP_CR_PEND 0x0001 | |
281 | #define L2CAP_CR_BAD_PSM 0x0002 | |
282 | #define L2CAP_CR_SEC_BLOCK 0x0003 | |
283 | #define L2CAP_CR_NO_MEM 0x0004 | |
38094c75 | 284 | #define L2CAP_CR_BAD_AMP 0x0005 |
dd1a8f8a MP |
285 | #define L2CAP_CR_INVALID_SCID 0x0006 |
286 | #define L2CAP_CR_SCID_IN_USE 0x0007 | |
571f7390 MP |
287 | |
288 | /* credit based connect results */ | |
289 | #define L2CAP_CR_LE_SUCCESS 0x0000 | |
290 | #define L2CAP_CR_LE_BAD_PSM 0x0002 | |
291 | #define L2CAP_CR_LE_NO_MEM 0x0004 | |
292 | #define L2CAP_CR_LE_AUTHENTICATION 0x0005 | |
293 | #define L2CAP_CR_LE_AUTHORIZATION 0x0006 | |
294 | #define L2CAP_CR_LE_BAD_KEY_SIZE 0x0007 | |
295 | #define L2CAP_CR_LE_ENCRYPTION 0x0008 | |
296 | #define L2CAP_CR_LE_INVALID_SCID 0x0009 | |
297 | #define L2CAP_CR_LE_SCID_IN_USE 0X000A | |
15f02b91 LAD |
298 | #define L2CAP_CR_LE_UNACCEPT_PARAMS 0X000B |
299 | #define L2CAP_CR_LE_INVALID_PARAMS 0X000C | |
1da177e4 | 300 | |
38094c75 | 301 | /* connect/create channel status */ |
47ec1dcd MH |
302 | #define L2CAP_CS_NO_INFO 0x0000 |
303 | #define L2CAP_CS_AUTHEN_PEND 0x0001 | |
304 | #define L2CAP_CS_AUTHOR_PEND 0x0002 | |
1da177e4 LT |
305 | |
306 | struct l2cap_conf_req { | |
8e036fc3 AV |
307 | __le16 dcid; |
308 | __le16 flags; | |
a7e45454 | 309 | __u8 data[]; |
66c853cc | 310 | } __packed; |
1da177e4 LT |
311 | |
312 | struct l2cap_conf_rsp { | |
8e036fc3 AV |
313 | __le16 scid; |
314 | __le16 flags; | |
315 | __le16 result; | |
a7e45454 | 316 | __u8 data[]; |
66c853cc | 317 | } __packed; |
1da177e4 | 318 | |
5dee9e7c MH |
319 | #define L2CAP_CONF_SUCCESS 0x0000 |
320 | #define L2CAP_CONF_UNACCEPT 0x0001 | |
321 | #define L2CAP_CONF_REJECT 0x0002 | |
322 | #define L2CAP_CONF_UNKNOWN 0x0003 | |
0e8b207e | 323 | #define L2CAP_CONF_PENDING 0x0004 |
5a9e7057 | 324 | #define L2CAP_CONF_EFS_REJECT 0x0005 |
1da177e4 | 325 | |
59e54bd1 AE |
326 | /* configuration req/rsp continuation flag */ |
327 | #define L2CAP_CONF_FLAG_CONTINUATION 0x0001 | |
328 | ||
1da177e4 LT |
329 | struct l2cap_conf_opt { |
330 | __u8 type; | |
331 | __u8 len; | |
a7e45454 | 332 | __u8 val[]; |
66c853cc | 333 | } __packed; |
1da177e4 LT |
334 | #define L2CAP_CONF_OPT_SIZE 2 |
335 | ||
589d2746 | 336 | #define L2CAP_CONF_HINT 0x80 |
47ec1dcd | 337 | #define L2CAP_CONF_MASK 0x7f |
589d2746 | 338 | |
1da177e4 LT |
339 | #define L2CAP_CONF_MTU 0x01 |
340 | #define L2CAP_CONF_FLUSH_TO 0x02 | |
341 | #define L2CAP_CONF_QOS 0x03 | |
342 | #define L2CAP_CONF_RFC 0x04 | |
47ec1dcd | 343 | #define L2CAP_CONF_FCS 0x05 |
5a9e7057 | 344 | #define L2CAP_CONF_EFS 0x06 |
6327eb98 | 345 | #define L2CAP_CONF_EWS 0x07 |
1da177e4 LT |
346 | |
347 | #define L2CAP_CONF_MAX_SIZE 22 | |
348 | ||
6464f35f MH |
349 | struct l2cap_conf_rfc { |
350 | __u8 mode; | |
351 | __u8 txwin_size; | |
352 | __u8 max_transmit; | |
353 | __le16 retrans_timeout; | |
354 | __le16 monitor_timeout; | |
355 | __le16 max_pdu_size; | |
66c853cc | 356 | } __packed; |
6464f35f MH |
357 | |
358 | #define L2CAP_MODE_BASIC 0x00 | |
359 | #define L2CAP_MODE_RETRANS 0x01 | |
360 | #define L2CAP_MODE_FLOWCTL 0x02 | |
47ec1dcd | 361 | #define L2CAP_MODE_ERTM 0x03 |
c6b03cf9 | 362 | #define L2CAP_MODE_STREAMING 0x04 |
6464f35f | 363 | |
38319713 JH |
364 | /* Unlike the above this one doesn't actually map to anything that would |
365 | * ever be sent over the air. Therefore, use a value that's unlikely to | |
366 | * ever be used in the BR/EDR configuration phase. | |
367 | */ | |
368 | #define L2CAP_MODE_LE_FLOWCTL 0x80 | |
14572096 | 369 | #define L2CAP_MODE_EXT_FLOWCTL 0x81 |
38319713 | 370 | |
5a9e7057 AE |
371 | struct l2cap_conf_efs { |
372 | __u8 id; | |
373 | __u8 stype; | |
374 | __le16 msdu; | |
375 | __le32 sdu_itime; | |
376 | __le32 acc_lat; | |
377 | __le32 flush_to; | |
378 | } __packed; | |
379 | ||
8f7975b1 AE |
380 | #define L2CAP_SERV_NOTRAFIC 0x00 |
381 | #define L2CAP_SERV_BESTEFFORT 0x01 | |
382 | #define L2CAP_SERV_GUARANTEED 0x02 | |
383 | ||
384 | #define L2CAP_BESTEFFORT_ID 0x01 | |
385 | ||
1da177e4 | 386 | struct l2cap_disconn_req { |
8e036fc3 AV |
387 | __le16 dcid; |
388 | __le16 scid; | |
66c853cc | 389 | } __packed; |
1da177e4 LT |
390 | |
391 | struct l2cap_disconn_rsp { | |
8e036fc3 AV |
392 | __le16 dcid; |
393 | __le16 scid; | |
66c853cc | 394 | } __packed; |
1da177e4 LT |
395 | |
396 | struct l2cap_info_req { | |
8e036fc3 | 397 | __le16 type; |
66c853cc | 398 | } __packed; |
1da177e4 LT |
399 | |
400 | struct l2cap_info_rsp { | |
8e036fc3 AV |
401 | __le16 type; |
402 | __le16 result; | |
a7e45454 | 403 | __u8 data[]; |
66c853cc | 404 | } __packed; |
1da177e4 | 405 | |
38094c75 MM |
406 | struct l2cap_create_chan_req { |
407 | __le16 psm; | |
408 | __le16 scid; | |
409 | __u8 amp_id; | |
410 | } __packed; | |
411 | ||
412 | struct l2cap_create_chan_rsp { | |
413 | __le16 dcid; | |
414 | __le16 scid; | |
415 | __le16 result; | |
416 | __le16 status; | |
417 | } __packed; | |
418 | ||
419 | struct l2cap_move_chan_req { | |
420 | __le16 icid; | |
421 | __u8 dest_amp_id; | |
422 | } __packed; | |
423 | ||
424 | struct l2cap_move_chan_rsp { | |
425 | __le16 icid; | |
426 | __le16 result; | |
427 | } __packed; | |
428 | ||
429 | #define L2CAP_MR_SUCCESS 0x0000 | |
430 | #define L2CAP_MR_PEND 0x0001 | |
431 | #define L2CAP_MR_BAD_ID 0x0002 | |
432 | #define L2CAP_MR_SAME_ID 0x0003 | |
433 | #define L2CAP_MR_NOT_SUPP 0x0004 | |
434 | #define L2CAP_MR_COLLISION 0x0005 | |
435 | #define L2CAP_MR_NOT_ALLOWED 0x0006 | |
436 | ||
437 | struct l2cap_move_chan_cfm { | |
438 | __le16 icid; | |
439 | __le16 result; | |
440 | } __packed; | |
441 | ||
442 | #define L2CAP_MC_CONFIRMED 0x0000 | |
443 | #define L2CAP_MC_UNCONFIRMED 0x0001 | |
444 | ||
445 | struct l2cap_move_chan_cfm_rsp { | |
446 | __le16 icid; | |
447 | } __packed; | |
448 | ||
1da177e4 | 449 | /* info type */ |
8d6765aa AE |
450 | #define L2CAP_IT_CL_MTU 0x0001 |
451 | #define L2CAP_IT_FEAT_MASK 0x0002 | |
452 | #define L2CAP_IT_FIXED_CHAN 0x0003 | |
1da177e4 LT |
453 | |
454 | /* info result */ | |
8d6765aa AE |
455 | #define L2CAP_IR_SUCCESS 0x0000 |
456 | #define L2CAP_IR_NOTSUPP 0x0001 | |
1da177e4 | 457 | |
de73115a CT |
458 | struct l2cap_conn_param_update_req { |
459 | __le16 min; | |
460 | __le16 max; | |
461 | __le16 latency; | |
462 | __le16 to_multiplier; | |
463 | } __packed; | |
464 | ||
465 | struct l2cap_conn_param_update_rsp { | |
466 | __le16 result; | |
467 | } __packed; | |
468 | ||
469 | /* Connection Parameters result */ | |
470 | #define L2CAP_CONN_PARAM_ACCEPTED 0x0000 | |
471 | #define L2CAP_CONN_PARAM_REJECTED 0x0001 | |
472 | ||
ee5ec5cf JH |
473 | struct l2cap_le_conn_req { |
474 | __le16 psm; | |
475 | __le16 scid; | |
476 | __le16 mtu; | |
477 | __le16 mps; | |
478 | __le16 credits; | |
479 | } __packed; | |
480 | ||
481 | struct l2cap_le_conn_rsp { | |
482 | __le16 dcid; | |
483 | __le16 mtu; | |
484 | __le16 mps; | |
485 | __le16 credits; | |
486 | __le16 result; | |
487 | } __packed; | |
488 | ||
489 | struct l2cap_le_credits { | |
490 | __le16 cid; | |
491 | __le16 credits; | |
492 | } __packed; | |
493 | ||
14572096 LAD |
494 | #define L2CAP_ECRED_MIN_MTU 64 |
495 | #define L2CAP_ECRED_MIN_MPS 64 | |
496 | ||
497 | struct l2cap_ecred_conn_req { | |
498 | __le16 psm; | |
499 | __le16 mtu; | |
500 | __le16 mps; | |
501 | __le16 credits; | |
631512f8 | 502 | __le16 scid[]; |
14572096 LAD |
503 | } __packed; |
504 | ||
505 | struct l2cap_ecred_conn_rsp { | |
506 | __le16 mtu; | |
507 | __le16 mps; | |
508 | __le16 credits; | |
509 | __le16 result; | |
631512f8 | 510 | __le16 dcid[]; |
14572096 LAD |
511 | }; |
512 | ||
513 | struct l2cap_ecred_reconf_req { | |
514 | __le16 mtu; | |
515 | __le16 mps; | |
631512f8 | 516 | __le16 scid[]; |
14572096 LAD |
517 | } __packed; |
518 | ||
519 | #define L2CAP_RECONF_SUCCESS 0x0000 | |
520 | #define L2CAP_RECONF_INVALID_MTU 0x0001 | |
521 | #define L2CAP_RECONF_INVALID_MPS 0x0002 | |
522 | ||
523 | struct l2cap_ecred_reconf_rsp { | |
524 | __le16 result; | |
525 | } __packed; | |
526 | ||
48454079 | 527 | /* ----- L2CAP channels and connections ----- */ |
3c588192 MM |
528 | struct l2cap_seq_list { |
529 | __u16 head; | |
530 | __u16 tail; | |
531 | __u16 mask; | |
532 | __u16 *list; | |
533 | }; | |
534 | ||
535 | #define L2CAP_SEQ_LIST_CLEAR 0xFFFF | |
536 | #define L2CAP_SEQ_LIST_TAIL 0x8000 | |
537 | ||
48454079 | 538 | struct l2cap_chan { |
8c1d787b | 539 | struct l2cap_conn *conn; |
08333283 MM |
540 | struct hci_conn *hs_hcon; |
541 | struct hci_chan *hs_hchan; | |
144ad330 | 542 | struct kref kref; |
abe84903 | 543 | atomic_t nesting; |
8c1d787b | 544 | |
89bc500e GP |
545 | __u8 state; |
546 | ||
7eafc59e | 547 | bdaddr_t dst; |
4f1654e0 | 548 | __u8 dst_type; |
7eafc59e | 549 | bdaddr_t src; |
4f1654e0 | 550 | __u8 src_type; |
fe4128e0 | 551 | __le16 psm; |
4f1654e0 | 552 | __le16 sport; |
fe4128e0 GP |
553 | __u16 dcid; |
554 | __u16 scid; | |
4343478f | 555 | |
0c1bc5c6 GP |
556 | __u16 imtu; |
557 | __u16 omtu; | |
558 | __u16 flush_to; | |
559 | __u8 mode; | |
715ec005 | 560 | __u8 chan_type; |
2ea66482 | 561 | __u8 chan_policy; |
0c1bc5c6 | 562 | |
4343478f | 563 | __u8 sec_level; |
4343478f | 564 | |
fc7f8a7e GP |
565 | __u8 ident; |
566 | ||
73ffa904 GP |
567 | __u8 conf_req[64]; |
568 | __u8 conf_len; | |
569 | __u8 num_conf_req; | |
570 | __u8 num_conf_rsp; | |
571 | ||
47d1ec61 GP |
572 | __u8 fcs; |
573 | ||
6327eb98 | 574 | __u16 tx_win; |
836be934 | 575 | __u16 tx_win_max; |
c20f8e35 | 576 | __u16 ack_win; |
47d1ec61 GP |
577 | __u8 max_tx; |
578 | __u16 retrans_timeout; | |
579 | __u16 monitor_timeout; | |
580 | __u16 mps; | |
581 | ||
0cd75f7e JH |
582 | __u16 tx_credits; |
583 | __u16 rx_credits; | |
584 | ||
d5f7ac38 MM |
585 | __u8 tx_state; |
586 | __u8 rx_state; | |
587 | ||
c1360a1c | 588 | unsigned long conf_state; |
e2ab4353 | 589 | unsigned long conn_state; |
d57b0e8b | 590 | unsigned long flags; |
525cd185 | 591 | |
fffadc08 | 592 | __u8 remote_amp_id; |
08333283 MM |
593 | __u8 local_amp_id; |
594 | __u8 move_id; | |
595 | __u8 move_state; | |
596 | __u8 move_role; | |
597 | ||
fb45de7d AE |
598 | __u16 next_tx_seq; |
599 | __u16 expected_ack_seq; | |
600 | __u16 expected_tx_seq; | |
0b209fae | 601 | __u16 buffer_seq; |
fb45de7d | 602 | __u16 srej_save_reqseq; |
d5f7ac38 | 603 | __u16 last_acked_seq; |
fb45de7d AE |
604 | __u16 frames_sent; |
605 | __u16 unacked_frames; | |
6a026610 | 606 | __u8 retry_count; |
6f61fd47 | 607 | __u16 sdu_len; |
6f61fd47 | 608 | struct sk_buff *sdu; |
84084a31 | 609 | struct sk_buff *sdu_last_frag; |
6f61fd47 | 610 | |
6327eb98 | 611 | __u16 remote_tx_win; |
2c03a7a4 GP |
612 | __u8 remote_max_tx; |
613 | __u16 remote_mps; | |
42e5c802 | 614 | |
5a9e7057 AE |
615 | __u8 local_id; |
616 | __u8 local_stype; | |
617 | __u16 local_msdu; | |
618 | __u32 local_sdu_itime; | |
619 | __u32 local_acc_lat; | |
620 | __u32 local_flush_to; | |
621 | ||
622 | __u8 remote_id; | |
623 | __u8 remote_stype; | |
624 | __u16 remote_msdu; | |
625 | __u32 remote_sdu_itime; | |
626 | __u32 remote_acc_lat; | |
627 | __u32 remote_flush_to; | |
628 | ||
721c4181 GP |
629 | struct delayed_work chan_timer; |
630 | struct delayed_work retrans_timer; | |
631 | struct delayed_work monitor_timer; | |
632 | struct delayed_work ack_timer; | |
633 | ||
58d35f87 GP |
634 | struct sk_buff *tx_send_head; |
635 | struct sk_buff_head tx_q; | |
f1c6775b | 636 | struct sk_buff_head srej_q; |
3c588192 MM |
637 | struct l2cap_seq_list srej_list; |
638 | struct l2cap_seq_list retrans_list; | |
e92c8e70 | 639 | |
f64b993f GP |
640 | struct list_head list; |
641 | struct list_head global_l; | |
80808e43 | 642 | |
f64b993f | 643 | void *data; |
67f86a45 | 644 | const struct l2cap_ops *ops; |
c03b355e | 645 | struct mutex lock; |
80808e43 GP |
646 | }; |
647 | ||
648 | struct l2cap_ops { | |
f64b993f | 649 | char *name; |
80808e43 | 650 | |
80b98027 GP |
651 | struct l2cap_chan *(*new_connection) (struct l2cap_chan *chan); |
652 | int (*recv) (struct l2cap_chan * chan, | |
653 | struct sk_buff *skb); | |
c0df7f6e | 654 | void (*teardown) (struct l2cap_chan *chan, int err); |
80b98027 GP |
655 | void (*close) (struct l2cap_chan *chan); |
656 | void (*state_change) (struct l2cap_chan *chan, | |
53f52121 | 657 | int state, int err); |
54a59aa2 | 658 | void (*ready) (struct l2cap_chan *chan); |
2dc4e510 | 659 | void (*defer) (struct l2cap_chan *chan); |
d97c899b | 660 | void (*resume) (struct l2cap_chan *chan); |
837776f7 | 661 | void (*suspend) (struct l2cap_chan *chan); |
5ec1bbe5 | 662 | void (*set_shutdown) (struct l2cap_chan *chan); |
8d836d71 | 663 | long (*get_sndtimeo) (struct l2cap_chan *chan); |
b48596d1 | 664 | struct pid *(*get_peer_pid) (struct l2cap_chan *chan); |
2f7719ce | 665 | struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan, |
d9fbd02b | 666 | unsigned long hdr_len, |
90338947 | 667 | unsigned long len, int nb); |
1da177e4 LT |
668 | }; |
669 | ||
670 | struct l2cap_conn { | |
f64b993f GP |
671 | struct hci_conn *hcon; |
672 | struct hci_chan *hchan; | |
1da177e4 | 673 | |
f64b993f | 674 | unsigned int mtu; |
1da177e4 | 675 | |
f64b993f | 676 | __u32 feat_mask; |
0bd49fc7 JH |
677 | __u8 remote_fixed_chan; |
678 | __u8 local_fixed_chan; | |
4e8402a3 | 679 | |
f64b993f GP |
680 | __u8 info_state; |
681 | __u8 info_ident; | |
4e8402a3 | 682 | |
f64b993f | 683 | struct delayed_work info_timer; |
4e8402a3 | 684 | |
f64b993f GP |
685 | struct sk_buff *rx_skb; |
686 | __u32 rx_len; | |
687 | __u8 tx_ident; | |
5a54e7c8 | 688 | struct mutex ident_lock; |
1da177e4 | 689 | |
61a939c6 JH |
690 | struct sk_buff_head pending_rx; |
691 | struct work_struct pending_rx_work; | |
692 | ||
f3d82d0c JH |
693 | struct work_struct id_addr_update_work; |
694 | ||
f64b993f | 695 | __u8 disc_reason; |
2950f21a | 696 | |
70db83c4 | 697 | struct l2cap_chan *smp; |
5d3de7df | 698 | |
f64b993f GP |
699 | struct list_head chan_l; |
700 | struct mutex chan_lock; | |
9c903e37 | 701 | struct kref ref; |
2c8e1411 DH |
702 | struct list_head users; |
703 | }; | |
704 | ||
705 | struct l2cap_user { | |
706 | struct list_head list; | |
707 | int (*probe) (struct l2cap_conn *conn, struct l2cap_user *user); | |
708 | void (*remove) (struct l2cap_conn *conn, struct l2cap_user *user); | |
1da177e4 LT |
709 | }; |
710 | ||
4e8402a3 | 711 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
984947dc MH |
712 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
713 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 | |
4e8402a3 | 714 | |
715ec005 GP |
715 | #define L2CAP_CHAN_RAW 1 |
716 | #define L2CAP_CHAN_CONN_LESS 2 | |
717 | #define L2CAP_CHAN_CONN_ORIENTED 3 | |
2338a7e0 | 718 | #define L2CAP_CHAN_FIXED 4 |
715ec005 | 719 | |
48454079 | 720 | /* ----- L2CAP socket info ----- */ |
1da177e4 LT |
721 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) |
722 | ||
723 | struct l2cap_pinfo { | |
f64b993f | 724 | struct bt_sock bt; |
48454079 | 725 | struct l2cap_chan *chan; |
f64b993f | 726 | struct sk_buff *rx_busy_skb; |
1da177e4 LT |
727 | }; |
728 | ||
c1360a1c GP |
729 | enum { |
730 | CONF_REQ_SENT, | |
731 | CONF_INPUT_DONE, | |
732 | CONF_OUTPUT_DONE, | |
733 | CONF_MTU_DONE, | |
734 | CONF_MODE_DONE, | |
735 | CONF_CONNECT_PEND, | |
f2592d3e | 736 | CONF_RECV_NO_FCS, |
c1360a1c | 737 | CONF_STATE2_DEVICE, |
6327eb98 | 738 | CONF_EWS_RECV, |
0e8b207e AE |
739 | CONF_LOC_CONF_PEND, |
740 | CONF_REM_CONF_PEND, | |
2827011f | 741 | CONF_NOT_COMPLETE, |
c1360a1c | 742 | }; |
f2fcfcd6 GP |
743 | |
744 | #define L2CAP_CONF_MAX_CONF_REQ 2 | |
745 | #define L2CAP_CONF_MAX_CONF_RSP 2 | |
861d6882 | 746 | |
e2ab4353 | 747 | enum { |
e2ab4353 GP |
748 | CONN_SREJ_SENT, |
749 | CONN_WAIT_F, | |
750 | CONN_SREJ_ACT, | |
751 | CONN_SEND_PBIT, | |
752 | CONN_REMOTE_BUSY, | |
753 | CONN_LOCAL_BUSY, | |
754 | CONN_REJ_ACT, | |
755 | CONN_SEND_FBIT, | |
756 | CONN_RNR_SENT, | |
e2ab4353 | 757 | }; |
e90bac06 | 758 | |
d57b0e8b AE |
759 | /* Definitions for flags in l2cap_chan */ |
760 | enum { | |
43bd0f32 | 761 | FLAG_ROLE_SWITCH, |
15770b1a | 762 | FLAG_FORCE_ACTIVE, |
ecf61bdb | 763 | FLAG_FORCE_RELIABLE, |
d57b0e8b | 764 | FLAG_FLUSHABLE, |
6327eb98 | 765 | FLAG_EXT_CTRL, |
5a9e7057 | 766 | FLAG_EFS_ENABLE, |
bdc25783 | 767 | FLAG_DEFER_SETUP, |
595177f3 | 768 | FLAG_LE_CONN_REQ_SENT, |
14572096 | 769 | FLAG_ECRED_CONN_REQ_SENT, |
d52deb17 | 770 | FLAG_PENDING_SECURITY, |
c16900cf | 771 | FLAG_HOLD_HCI_CONN, |
d57b0e8b AE |
772 | }; |
773 | ||
abe84903 JH |
774 | /* Lock nesting levels for L2CAP channels. We need these because lockdep |
775 | * otherwise considers all channels equal and will e.g. complain about a | |
776 | * connection oriented channel triggering SMP procedures or a listening | |
777 | * channel creating and locking a child channel. | |
778 | */ | |
779 | enum { | |
780 | L2CAP_NESTING_SMP, | |
781 | L2CAP_NESTING_NORMAL, | |
782 | L2CAP_NESTING_PARENT, | |
783 | }; | |
784 | ||
d5f7ac38 MM |
785 | enum { |
786 | L2CAP_TX_STATE_XMIT, | |
787 | L2CAP_TX_STATE_WAIT_F, | |
788 | }; | |
789 | ||
790 | enum { | |
791 | L2CAP_RX_STATE_RECV, | |
792 | L2CAP_RX_STATE_SREJ_SENT, | |
08333283 MM |
793 | L2CAP_RX_STATE_MOVE, |
794 | L2CAP_RX_STATE_WAIT_P, | |
795 | L2CAP_RX_STATE_WAIT_F, | |
d5f7ac38 MM |
796 | }; |
797 | ||
798 | enum { | |
799 | L2CAP_TXSEQ_EXPECTED, | |
800 | L2CAP_TXSEQ_EXPECTED_SREJ, | |
801 | L2CAP_TXSEQ_UNEXPECTED, | |
802 | L2CAP_TXSEQ_UNEXPECTED_SREJ, | |
803 | L2CAP_TXSEQ_DUPLICATE, | |
804 | L2CAP_TXSEQ_DUPLICATE_SREJ, | |
805 | L2CAP_TXSEQ_INVALID, | |
806 | L2CAP_TXSEQ_INVALID_IGNORE, | |
807 | }; | |
808 | ||
809 | enum { | |
810 | L2CAP_EV_DATA_REQUEST, | |
811 | L2CAP_EV_LOCAL_BUSY_DETECTED, | |
812 | L2CAP_EV_LOCAL_BUSY_CLEAR, | |
813 | L2CAP_EV_RECV_REQSEQ_AND_FBIT, | |
814 | L2CAP_EV_RECV_FBIT, | |
815 | L2CAP_EV_RETRANS_TO, | |
816 | L2CAP_EV_MONITOR_TO, | |
817 | L2CAP_EV_EXPLICIT_POLL, | |
818 | L2CAP_EV_RECV_IFRAME, | |
819 | L2CAP_EV_RECV_RR, | |
820 | L2CAP_EV_RECV_REJ, | |
821 | L2CAP_EV_RECV_RNR, | |
822 | L2CAP_EV_RECV_SREJ, | |
823 | L2CAP_EV_RECV_FRAME, | |
824 | }; | |
825 | ||
08333283 MM |
826 | enum { |
827 | L2CAP_MOVE_ROLE_NONE, | |
828 | L2CAP_MOVE_ROLE_INITIATOR, | |
829 | L2CAP_MOVE_ROLE_RESPONDER, | |
830 | }; | |
831 | ||
832 | enum { | |
833 | L2CAP_MOVE_STABLE, | |
834 | L2CAP_MOVE_WAIT_REQ, | |
835 | L2CAP_MOVE_WAIT_RSP, | |
836 | L2CAP_MOVE_WAIT_RSP_SUCCESS, | |
837 | L2CAP_MOVE_WAIT_CONFIRM, | |
838 | L2CAP_MOVE_WAIT_CONFIRM_RSP, | |
839 | L2CAP_MOVE_WAIT_LOGICAL_COMP, | |
840 | L2CAP_MOVE_WAIT_LOGICAL_CFM, | |
841 | L2CAP_MOVE_WAIT_LOCAL_BUSY, | |
842 | L2CAP_MOVE_WAIT_PREPARE, | |
843 | }; | |
844 | ||
30648372 JK |
845 | void l2cap_chan_hold(struct l2cap_chan *c); |
846 | void l2cap_chan_put(struct l2cap_chan *c); | |
371fd835 | 847 | |
c03b355e AE |
848 | static inline void l2cap_chan_lock(struct l2cap_chan *chan) |
849 | { | |
abe84903 | 850 | mutex_lock_nested(&chan->lock, atomic_read(&chan->nesting)); |
c03b355e AE |
851 | } |
852 | ||
853 | static inline void l2cap_chan_unlock(struct l2cap_chan *chan) | |
854 | { | |
855 | mutex_unlock(&chan->lock); | |
856 | } | |
857 | ||
c2ec9c1b | 858 | static inline void l2cap_set_timer(struct l2cap_chan *chan, |
6f74b6f3 | 859 | struct delayed_work *work, long timeout) |
c2ec9c1b | 860 | { |
e05dcc32 | 861 | BT_DBG("chan %p state %s timeout %ld", chan, |
6f74b6f3 | 862 | state_to_string(chan->state), timeout); |
c2ec9c1b | 863 | |
6f74b6f3 AE |
864 | /* If delayed work cancelled do not hold(chan) |
865 | since it is already done with previous set_timer */ | |
17cd3f37 | 866 | if (!cancel_delayed_work(work)) |
371fd835 | 867 | l2cap_chan_hold(chan); |
6f74b6f3 | 868 | |
c2ec9c1b GP |
869 | schedule_delayed_work(work, timeout); |
870 | } | |
871 | ||
75b93b59 | 872 | static inline bool l2cap_clear_timer(struct l2cap_chan *chan, |
6f74b6f3 | 873 | struct delayed_work *work) |
c2ec9c1b | 874 | { |
75b93b59 SJ |
875 | bool ret; |
876 | ||
6f74b6f3 AE |
877 | /* put(chan) if delayed work cancelled otherwise it |
878 | is done in delayed work function */ | |
17cd3f37 | 879 | ret = cancel_delayed_work(work); |
75b93b59 | 880 | if (ret) |
371fd835 | 881 | l2cap_chan_put(chan); |
75b93b59 SJ |
882 | |
883 | return ret; | |
c2ec9c1b GP |
884 | } |
885 | ||
c9b66675 GP |
886 | #define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t)) |
887 | #define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer) | |
1a09bcb9 | 888 | #define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer) |
1a09bcb9 GP |
889 | #define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer) |
890 | #define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \ | |
b83ddfe2 | 891 | msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO)); |
1a09bcb9 | 892 | #define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer) |
c74e560c | 893 | |
836be934 AE |
894 | static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2) |
895 | { | |
5a364bd3 MM |
896 | if (seq1 >= seq2) |
897 | return seq1 - seq2; | |
898 | else | |
899 | return chan->tx_win_max + 1 - seq2 + seq1; | |
836be934 AE |
900 | } |
901 | ||
902 | static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq) | |
903 | { | |
904 | return (seq + 1) % (chan->tx_win_max + 1); | |
905 | } | |
906 | ||
7e1af8a3 GP |
907 | static inline struct l2cap_chan *l2cap_chan_no_new_connection(struct l2cap_chan *chan) |
908 | { | |
909 | return NULL; | |
910 | } | |
911 | ||
f193844c JH |
912 | static inline int l2cap_chan_no_recv(struct l2cap_chan *chan, struct sk_buff *skb) |
913 | { | |
914 | return -ENOSYS; | |
915 | } | |
916 | ||
917 | static inline struct sk_buff *l2cap_chan_no_alloc_skb(struct l2cap_chan *chan, | |
918 | unsigned long hdr_len, | |
919 | unsigned long len, int nb) | |
920 | { | |
921 | return ERR_PTR(-ENOSYS); | |
922 | } | |
923 | ||
7e1af8a3 GP |
924 | static inline void l2cap_chan_no_teardown(struct l2cap_chan *chan, int err) |
925 | { | |
926 | } | |
927 | ||
f193844c JH |
928 | static inline void l2cap_chan_no_close(struct l2cap_chan *chan) |
929 | { | |
930 | } | |
931 | ||
7e1af8a3 GP |
932 | static inline void l2cap_chan_no_ready(struct l2cap_chan *chan) |
933 | { | |
934 | } | |
1da177e4 | 935 | |
f193844c JH |
936 | static inline void l2cap_chan_no_state_change(struct l2cap_chan *chan, |
937 | int state, int err) | |
938 | { | |
939 | } | |
940 | ||
2dc4e510 GP |
941 | static inline void l2cap_chan_no_defer(struct l2cap_chan *chan) |
942 | { | |
943 | } | |
944 | ||
f193844c JH |
945 | static inline void l2cap_chan_no_suspend(struct l2cap_chan *chan) |
946 | { | |
947 | } | |
948 | ||
2ce5fb51 MH |
949 | static inline void l2cap_chan_no_resume(struct l2cap_chan *chan) |
950 | { | |
951 | } | |
952 | ||
5ec1bbe5 GP |
953 | static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan) |
954 | { | |
955 | } | |
956 | ||
8d836d71 GP |
957 | static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan) |
958 | { | |
959 | return 0; | |
960 | } | |
961 | ||
eb939922 | 962 | extern bool disable_ertm; |
4be5ca67 | 963 | extern bool enable_ecred; |
bb58f747 GP |
964 | |
965 | int l2cap_init_sockets(void); | |
966 | void l2cap_cleanup_sockets(void); | |
b3916db3 | 967 | bool l2cap_is_socket(struct socket *sock); |
bb58f747 | 968 | |
27e2d4c8 | 969 | void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan); |
15f02b91 | 970 | void __l2cap_ecred_conn_rsp_defer(struct l2cap_chan *chan); |
8c1d787b | 971 | void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); |
68983259 | 972 | |
9e4425ff GP |
973 | int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm); |
974 | int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid); | |
975 | ||
eef1d9b6 | 976 | struct l2cap_chan *l2cap_chan_create(void); |
0f852724 | 977 | void l2cap_chan_close(struct l2cap_chan *chan, int reason); |
cbe8fed4 | 978 | int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, |
8e9f9892 | 979 | bdaddr_t *dst, u8 dst_type); |
15f02b91 | 980 | int l2cap_chan_reconfigure(struct l2cap_chan *chan, __u16 mtu); |
8d46321c | 981 | int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len); |
e328140f | 982 | void l2cap_chan_busy(struct l2cap_chan *chan, int busy); |
e7cafc45 | 983 | int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator); |
bd4b1653 | 984 | void l2cap_chan_set_defaults(struct l2cap_chan *chan); |
466f8004 AE |
985 | int l2cap_ertm_init(struct l2cap_chan *chan); |
986 | void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); | |
93c3e8f5 | 987 | void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); |
da49b602 LAD |
988 | typedef void (*l2cap_chan_func_t)(struct l2cap_chan *chan, void *data); |
989 | void l2cap_chan_list(struct l2cap_conn *conn, l2cap_chan_func_t func, | |
990 | void *data); | |
466f8004 | 991 | void l2cap_chan_del(struct l2cap_chan *chan, int err); |
2766be48 | 992 | void l2cap_send_conn_req(struct l2cap_chan *chan); |
3f7a56c4 | 993 | void l2cap_move_start(struct l2cap_chan *chan); |
27695fb4 AE |
994 | void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, |
995 | u8 status); | |
a514b17f | 996 | void __l2cap_physical_cfm(struct l2cap_chan *chan, int result); |
bb58f747 | 997 | |
51bb8457 | 998 | struct l2cap_conn *l2cap_conn_get(struct l2cap_conn *conn); |
9c903e37 DH |
999 | void l2cap_conn_put(struct l2cap_conn *conn); |
1000 | ||
2c8e1411 DH |
1001 | int l2cap_register_user(struct l2cap_conn *conn, struct l2cap_user *user); |
1002 | void l2cap_unregister_user(struct l2cap_conn *conn, struct l2cap_user *user); | |
1003 | ||
1da177e4 | 1004 | #endif /* __L2CAP_H */ |