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1da177e4 LT |
1 | /* |
2 | BlueZ - Bluetooth protocol stack for Linux | |
3 | Copyright (C) 2000-2001 Qualcomm Incorporated | |
4 | ||
5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License version 2 as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
14 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES | |
16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
19 | ||
20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, | |
21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
22 | SOFTWARE IS DISCLAIMED. | |
23 | */ | |
24 | ||
25 | #ifndef __L2CAP_H | |
26 | #define __L2CAP_H | |
27 | ||
28 | /* L2CAP defaults */ | |
29 | #define L2CAP_DEFAULT_MTU 672 | |
30 | #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF | |
31 | ||
4e8402a3 MH |
32 | #define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */ |
33 | #define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */ | |
1da177e4 LT |
34 | |
35 | /* L2CAP socket address */ | |
36 | struct sockaddr_l2 { | |
37 | sa_family_t l2_family; | |
8e036fc3 | 38 | __le16 l2_psm; |
1da177e4 LT |
39 | bdaddr_t l2_bdaddr; |
40 | }; | |
41 | ||
42 | /* L2CAP socket options */ | |
43 | #define L2CAP_OPTIONS 0x01 | |
44 | struct l2cap_options { | |
45 | __u16 omtu; | |
46 | __u16 imtu; | |
47 | __u16 flush_to; | |
48 | __u8 mode; | |
49 | }; | |
50 | ||
51 | #define L2CAP_CONNINFO 0x02 | |
52 | struct l2cap_conninfo { | |
53 | __u16 hci_handle; | |
54 | __u8 dev_class[3]; | |
55 | }; | |
56 | ||
57 | #define L2CAP_LM 0x03 | |
58 | #define L2CAP_LM_MASTER 0x0001 | |
59 | #define L2CAP_LM_AUTH 0x0002 | |
60 | #define L2CAP_LM_ENCRYPT 0x0004 | |
61 | #define L2CAP_LM_TRUSTED 0x0008 | |
62 | #define L2CAP_LM_RELIABLE 0x0010 | |
63 | #define L2CAP_LM_SECURE 0x0020 | |
64 | ||
65 | /* L2CAP command codes */ | |
66 | #define L2CAP_COMMAND_REJ 0x01 | |
67 | #define L2CAP_CONN_REQ 0x02 | |
68 | #define L2CAP_CONN_RSP 0x03 | |
69 | #define L2CAP_CONF_REQ 0x04 | |
70 | #define L2CAP_CONF_RSP 0x05 | |
71 | #define L2CAP_DISCONN_REQ 0x06 | |
72 | #define L2CAP_DISCONN_RSP 0x07 | |
73 | #define L2CAP_ECHO_REQ 0x08 | |
74 | #define L2CAP_ECHO_RSP 0x09 | |
75 | #define L2CAP_INFO_REQ 0x0a | |
76 | #define L2CAP_INFO_RSP 0x0b | |
77 | ||
78 | /* L2CAP structures */ | |
79 | struct l2cap_hdr { | |
8e036fc3 AV |
80 | __le16 len; |
81 | __le16 cid; | |
1da177e4 LT |
82 | } __attribute__ ((packed)); |
83 | #define L2CAP_HDR_SIZE 4 | |
84 | ||
85 | struct l2cap_cmd_hdr { | |
86 | __u8 code; | |
87 | __u8 ident; | |
8e036fc3 | 88 | __le16 len; |
1da177e4 LT |
89 | } __attribute__ ((packed)); |
90 | #define L2CAP_CMD_HDR_SIZE 4 | |
91 | ||
92 | struct l2cap_cmd_rej { | |
8e036fc3 | 93 | __le16 reason; |
1da177e4 LT |
94 | } __attribute__ ((packed)); |
95 | ||
96 | struct l2cap_conn_req { | |
8e036fc3 AV |
97 | __le16 psm; |
98 | __le16 scid; | |
1da177e4 LT |
99 | } __attribute__ ((packed)); |
100 | ||
101 | struct l2cap_conn_rsp { | |
8e036fc3 AV |
102 | __le16 dcid; |
103 | __le16 scid; | |
104 | __le16 result; | |
105 | __le16 status; | |
1da177e4 LT |
106 | } __attribute__ ((packed)); |
107 | ||
108 | /* connect result */ | |
109 | #define L2CAP_CR_SUCCESS 0x0000 | |
110 | #define L2CAP_CR_PEND 0x0001 | |
111 | #define L2CAP_CR_BAD_PSM 0x0002 | |
112 | #define L2CAP_CR_SEC_BLOCK 0x0003 | |
113 | #define L2CAP_CR_NO_MEM 0x0004 | |
114 | ||
115 | /* connect status */ | |
116 | #define L2CAP_CS_NO_INFO 0x0000 | |
117 | #define L2CAP_CS_AUTHEN_PEND 0x0001 | |
118 | #define L2CAP_CS_AUTHOR_PEND 0x0002 | |
119 | ||
120 | struct l2cap_conf_req { | |
8e036fc3 AV |
121 | __le16 dcid; |
122 | __le16 flags; | |
1da177e4 LT |
123 | __u8 data[0]; |
124 | } __attribute__ ((packed)); | |
125 | ||
126 | struct l2cap_conf_rsp { | |
8e036fc3 AV |
127 | __le16 scid; |
128 | __le16 flags; | |
129 | __le16 result; | |
1da177e4 LT |
130 | __u8 data[0]; |
131 | } __attribute__ ((packed)); | |
132 | ||
5dee9e7c MH |
133 | #define L2CAP_CONF_SUCCESS 0x0000 |
134 | #define L2CAP_CONF_UNACCEPT 0x0001 | |
135 | #define L2CAP_CONF_REJECT 0x0002 | |
136 | #define L2CAP_CONF_UNKNOWN 0x0003 | |
1da177e4 LT |
137 | |
138 | struct l2cap_conf_opt { | |
139 | __u8 type; | |
140 | __u8 len; | |
141 | __u8 val[0]; | |
142 | } __attribute__ ((packed)); | |
143 | #define L2CAP_CONF_OPT_SIZE 2 | |
144 | ||
145 | #define L2CAP_CONF_MTU 0x01 | |
146 | #define L2CAP_CONF_FLUSH_TO 0x02 | |
147 | #define L2CAP_CONF_QOS 0x03 | |
148 | #define L2CAP_CONF_RFC 0x04 | |
149 | ||
150 | #define L2CAP_CONF_MAX_SIZE 22 | |
151 | ||
6464f35f MH |
152 | struct l2cap_conf_rfc { |
153 | __u8 mode; | |
154 | __u8 txwin_size; | |
155 | __u8 max_transmit; | |
156 | __le16 retrans_timeout; | |
157 | __le16 monitor_timeout; | |
158 | __le16 max_pdu_size; | |
159 | } __attribute__ ((packed)); | |
160 | ||
161 | #define L2CAP_MODE_BASIC 0x00 | |
162 | #define L2CAP_MODE_RETRANS 0x01 | |
163 | #define L2CAP_MODE_FLOWCTL 0x02 | |
164 | ||
1da177e4 | 165 | struct l2cap_disconn_req { |
8e036fc3 AV |
166 | __le16 dcid; |
167 | __le16 scid; | |
1da177e4 LT |
168 | } __attribute__ ((packed)); |
169 | ||
170 | struct l2cap_disconn_rsp { | |
8e036fc3 AV |
171 | __le16 dcid; |
172 | __le16 scid; | |
1da177e4 LT |
173 | } __attribute__ ((packed)); |
174 | ||
175 | struct l2cap_info_req { | |
8e036fc3 | 176 | __le16 type; |
1da177e4 LT |
177 | } __attribute__ ((packed)); |
178 | ||
179 | struct l2cap_info_rsp { | |
8e036fc3 AV |
180 | __le16 type; |
181 | __le16 result; | |
1da177e4 LT |
182 | __u8 data[0]; |
183 | } __attribute__ ((packed)); | |
184 | ||
185 | /* info type */ | |
186 | #define L2CAP_IT_CL_MTU 0x0001 | |
187 | #define L2CAP_IT_FEAT_MASK 0x0002 | |
e1027a7c | 188 | #define L2CAP_IT_FIXED_CHAN 0x0003 |
1da177e4 LT |
189 | |
190 | /* info result */ | |
191 | #define L2CAP_IR_SUCCESS 0x0000 | |
192 | #define L2CAP_IR_NOTSUPP 0x0001 | |
193 | ||
194 | /* ----- L2CAP connections ----- */ | |
195 | struct l2cap_chan_list { | |
196 | struct sock *head; | |
197 | rwlock_t lock; | |
198 | long num; | |
199 | }; | |
200 | ||
201 | struct l2cap_conn { | |
202 | struct hci_conn *hcon; | |
203 | ||
204 | bdaddr_t *dst; | |
205 | bdaddr_t *src; | |
206 | ||
207 | unsigned int mtu; | |
208 | ||
4e8402a3 MH |
209 | __u32 feat_mask; |
210 | ||
211 | __u8 info_state; | |
212 | __u8 info_ident; | |
213 | ||
214 | struct timer_list info_timer; | |
215 | ||
1da177e4 LT |
216 | spinlock_t lock; |
217 | ||
218 | struct sk_buff *rx_skb; | |
219 | __u32 rx_len; | |
220 | __u8 rx_ident; | |
221 | __u8 tx_ident; | |
222 | ||
223 | struct l2cap_chan_list chan_list; | |
224 | }; | |
225 | ||
4e8402a3 | 226 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
984947dc MH |
227 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
228 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 | |
4e8402a3 | 229 | |
1da177e4 LT |
230 | /* ----- L2CAP channel and socket info ----- */ |
231 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) | |
232 | ||
233 | struct l2cap_pinfo { | |
234 | struct bt_sock bt; | |
8e036fc3 | 235 | __le16 psm; |
1da177e4 LT |
236 | __u16 dcid; |
237 | __u16 scid; | |
238 | ||
239 | __u16 imtu; | |
240 | __u16 omtu; | |
241 | __u16 flush_to; | |
2af6b9d5 MH |
242 | __u8 sec_level; |
243 | __u8 role_switch; | |
244 | __u8 force_reliable; | |
1da177e4 | 245 | |
5dee9e7c MH |
246 | __u8 conf_req[64]; |
247 | __u8 conf_len; | |
1da177e4 LT |
248 | __u8 conf_state; |
249 | __u8 conf_retry; | |
1da177e4 LT |
250 | |
251 | __u8 ident; | |
252 | ||
8e036fc3 | 253 | __le16 sport; |
1da177e4 LT |
254 | |
255 | struct l2cap_conn *conn; | |
256 | struct sock *next_c; | |
257 | struct sock *prev_c; | |
258 | }; | |
259 | ||
861d6882 MH |
260 | #define L2CAP_CONF_REQ_SENT 0x01 |
261 | #define L2CAP_CONF_INPUT_DONE 0x02 | |
262 | #define L2CAP_CONF_OUTPUT_DONE 0x04 | |
6a8d3010 | 263 | #define L2CAP_CONF_CONNECT_PEND 0x80 |
861d6882 MH |
264 | |
265 | #define L2CAP_CONF_MAX_RETRIES 2 | |
1da177e4 LT |
266 | |
267 | void l2cap_load(void); | |
268 | ||
269 | #endif /* __L2CAP_H */ |