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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 | 39 | bdaddr_t l2_bdaddr; |
f29972de | 40 | __le16 l2_cid; |
1da177e4 LT |
41 | }; |
42 | ||
43 | /* L2CAP socket options */ | |
44 | #define L2CAP_OPTIONS 0x01 | |
45 | struct l2cap_options { | |
46 | __u16 omtu; | |
47 | __u16 imtu; | |
48 | __u16 flush_to; | |
49 | __u8 mode; | |
50 | }; | |
51 | ||
52 | #define L2CAP_CONNINFO 0x02 | |
53 | struct l2cap_conninfo { | |
54 | __u16 hci_handle; | |
55 | __u8 dev_class[3]; | |
56 | }; | |
57 | ||
58 | #define L2CAP_LM 0x03 | |
59 | #define L2CAP_LM_MASTER 0x0001 | |
60 | #define L2CAP_LM_AUTH 0x0002 | |
61 | #define L2CAP_LM_ENCRYPT 0x0004 | |
62 | #define L2CAP_LM_TRUSTED 0x0008 | |
63 | #define L2CAP_LM_RELIABLE 0x0010 | |
64 | #define L2CAP_LM_SECURE 0x0020 | |
65 | ||
66 | /* L2CAP command codes */ | |
67 | #define L2CAP_COMMAND_REJ 0x01 | |
68 | #define L2CAP_CONN_REQ 0x02 | |
69 | #define L2CAP_CONN_RSP 0x03 | |
70 | #define L2CAP_CONF_REQ 0x04 | |
71 | #define L2CAP_CONF_RSP 0x05 | |
72 | #define L2CAP_DISCONN_REQ 0x06 | |
73 | #define L2CAP_DISCONN_RSP 0x07 | |
74 | #define L2CAP_ECHO_REQ 0x08 | |
75 | #define L2CAP_ECHO_RSP 0x09 | |
76 | #define L2CAP_INFO_REQ 0x0a | |
77 | #define L2CAP_INFO_RSP 0x0b | |
78 | ||
79 | /* L2CAP structures */ | |
80 | struct l2cap_hdr { | |
8e036fc3 AV |
81 | __le16 len; |
82 | __le16 cid; | |
1da177e4 LT |
83 | } __attribute__ ((packed)); |
84 | #define L2CAP_HDR_SIZE 4 | |
85 | ||
86 | struct l2cap_cmd_hdr { | |
87 | __u8 code; | |
88 | __u8 ident; | |
8e036fc3 | 89 | __le16 len; |
1da177e4 LT |
90 | } __attribute__ ((packed)); |
91 | #define L2CAP_CMD_HDR_SIZE 4 | |
92 | ||
93 | struct l2cap_cmd_rej { | |
8e036fc3 | 94 | __le16 reason; |
1da177e4 LT |
95 | } __attribute__ ((packed)); |
96 | ||
97 | struct l2cap_conn_req { | |
8e036fc3 AV |
98 | __le16 psm; |
99 | __le16 scid; | |
1da177e4 LT |
100 | } __attribute__ ((packed)); |
101 | ||
102 | struct l2cap_conn_rsp { | |
8e036fc3 AV |
103 | __le16 dcid; |
104 | __le16 scid; | |
105 | __le16 result; | |
106 | __le16 status; | |
1da177e4 LT |
107 | } __attribute__ ((packed)); |
108 | ||
109 | /* connect result */ | |
110 | #define L2CAP_CR_SUCCESS 0x0000 | |
111 | #define L2CAP_CR_PEND 0x0001 | |
112 | #define L2CAP_CR_BAD_PSM 0x0002 | |
113 | #define L2CAP_CR_SEC_BLOCK 0x0003 | |
114 | #define L2CAP_CR_NO_MEM 0x0004 | |
115 | ||
116 | /* connect status */ | |
117 | #define L2CAP_CS_NO_INFO 0x0000 | |
118 | #define L2CAP_CS_AUTHEN_PEND 0x0001 | |
119 | #define L2CAP_CS_AUTHOR_PEND 0x0002 | |
120 | ||
121 | struct l2cap_conf_req { | |
8e036fc3 AV |
122 | __le16 dcid; |
123 | __le16 flags; | |
1da177e4 LT |
124 | __u8 data[0]; |
125 | } __attribute__ ((packed)); | |
126 | ||
127 | struct l2cap_conf_rsp { | |
8e036fc3 AV |
128 | __le16 scid; |
129 | __le16 flags; | |
130 | __le16 result; | |
1da177e4 LT |
131 | __u8 data[0]; |
132 | } __attribute__ ((packed)); | |
133 | ||
5dee9e7c MH |
134 | #define L2CAP_CONF_SUCCESS 0x0000 |
135 | #define L2CAP_CONF_UNACCEPT 0x0001 | |
136 | #define L2CAP_CONF_REJECT 0x0002 | |
137 | #define L2CAP_CONF_UNKNOWN 0x0003 | |
1da177e4 LT |
138 | |
139 | struct l2cap_conf_opt { | |
140 | __u8 type; | |
141 | __u8 len; | |
142 | __u8 val[0]; | |
143 | } __attribute__ ((packed)); | |
144 | #define L2CAP_CONF_OPT_SIZE 2 | |
145 | ||
146 | #define L2CAP_CONF_MTU 0x01 | |
147 | #define L2CAP_CONF_FLUSH_TO 0x02 | |
148 | #define L2CAP_CONF_QOS 0x03 | |
149 | #define L2CAP_CONF_RFC 0x04 | |
150 | ||
151 | #define L2CAP_CONF_MAX_SIZE 22 | |
152 | ||
6464f35f MH |
153 | struct l2cap_conf_rfc { |
154 | __u8 mode; | |
155 | __u8 txwin_size; | |
156 | __u8 max_transmit; | |
157 | __le16 retrans_timeout; | |
158 | __le16 monitor_timeout; | |
159 | __le16 max_pdu_size; | |
160 | } __attribute__ ((packed)); | |
161 | ||
162 | #define L2CAP_MODE_BASIC 0x00 | |
163 | #define L2CAP_MODE_RETRANS 0x01 | |
164 | #define L2CAP_MODE_FLOWCTL 0x02 | |
165 | ||
1da177e4 | 166 | struct l2cap_disconn_req { |
8e036fc3 AV |
167 | __le16 dcid; |
168 | __le16 scid; | |
1da177e4 LT |
169 | } __attribute__ ((packed)); |
170 | ||
171 | struct l2cap_disconn_rsp { | |
8e036fc3 AV |
172 | __le16 dcid; |
173 | __le16 scid; | |
1da177e4 LT |
174 | } __attribute__ ((packed)); |
175 | ||
176 | struct l2cap_info_req { | |
8e036fc3 | 177 | __le16 type; |
1da177e4 LT |
178 | } __attribute__ ((packed)); |
179 | ||
180 | struct l2cap_info_rsp { | |
8e036fc3 AV |
181 | __le16 type; |
182 | __le16 result; | |
1da177e4 LT |
183 | __u8 data[0]; |
184 | } __attribute__ ((packed)); | |
185 | ||
186 | /* info type */ | |
187 | #define L2CAP_IT_CL_MTU 0x0001 | |
188 | #define L2CAP_IT_FEAT_MASK 0x0002 | |
e1027a7c | 189 | #define L2CAP_IT_FIXED_CHAN 0x0003 |
1da177e4 LT |
190 | |
191 | /* info result */ | |
192 | #define L2CAP_IR_SUCCESS 0x0000 | |
193 | #define L2CAP_IR_NOTSUPP 0x0001 | |
194 | ||
195 | /* ----- L2CAP connections ----- */ | |
196 | struct l2cap_chan_list { | |
197 | struct sock *head; | |
198 | rwlock_t lock; | |
199 | long num; | |
200 | }; | |
201 | ||
202 | struct l2cap_conn { | |
203 | struct hci_conn *hcon; | |
204 | ||
205 | bdaddr_t *dst; | |
206 | bdaddr_t *src; | |
207 | ||
208 | unsigned int mtu; | |
209 | ||
4e8402a3 MH |
210 | __u32 feat_mask; |
211 | ||
212 | __u8 info_state; | |
213 | __u8 info_ident; | |
214 | ||
215 | struct timer_list info_timer; | |
216 | ||
1da177e4 LT |
217 | spinlock_t lock; |
218 | ||
219 | struct sk_buff *rx_skb; | |
220 | __u32 rx_len; | |
221 | __u8 rx_ident; | |
222 | __u8 tx_ident; | |
223 | ||
224 | struct l2cap_chan_list chan_list; | |
225 | }; | |
226 | ||
4e8402a3 | 227 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
984947dc MH |
228 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
229 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 | |
4e8402a3 | 230 | |
1da177e4 LT |
231 | /* ----- L2CAP channel and socket info ----- */ |
232 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) | |
233 | ||
234 | struct l2cap_pinfo { | |
235 | struct bt_sock bt; | |
8e036fc3 | 236 | __le16 psm; |
1da177e4 LT |
237 | __u16 dcid; |
238 | __u16 scid; | |
239 | ||
240 | __u16 imtu; | |
241 | __u16 omtu; | |
242 | __u16 flush_to; | |
2af6b9d5 MH |
243 | __u8 sec_level; |
244 | __u8 role_switch; | |
245 | __u8 force_reliable; | |
1da177e4 | 246 | |
5dee9e7c MH |
247 | __u8 conf_req[64]; |
248 | __u8 conf_len; | |
1da177e4 LT |
249 | __u8 conf_state; |
250 | __u8 conf_retry; | |
1da177e4 LT |
251 | |
252 | __u8 ident; | |
253 | ||
8e036fc3 | 254 | __le16 sport; |
1da177e4 LT |
255 | |
256 | struct l2cap_conn *conn; | |
257 | struct sock *next_c; | |
258 | struct sock *prev_c; | |
259 | }; | |
260 | ||
861d6882 MH |
261 | #define L2CAP_CONF_REQ_SENT 0x01 |
262 | #define L2CAP_CONF_INPUT_DONE 0x02 | |
263 | #define L2CAP_CONF_OUTPUT_DONE 0x04 | |
6a8d3010 | 264 | #define L2CAP_CONF_CONNECT_PEND 0x80 |
861d6882 MH |
265 | |
266 | #define L2CAP_CONF_MAX_RETRIES 2 | |
1da177e4 LT |
267 | |
268 | void l2cap_load(void); | |
269 | ||
270 | #endif /* __L2CAP_H */ |