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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 | ||
32 | #define L2CAP_CONN_TIMEOUT (HZ * 40) | |
33 | ||
34 | /* L2CAP socket address */ | |
35 | struct sockaddr_l2 { | |
36 | sa_family_t l2_family; | |
37 | unsigned short l2_psm; | |
38 | bdaddr_t l2_bdaddr; | |
39 | }; | |
40 | ||
41 | /* L2CAP socket options */ | |
42 | #define L2CAP_OPTIONS 0x01 | |
43 | struct l2cap_options { | |
44 | __u16 omtu; | |
45 | __u16 imtu; | |
46 | __u16 flush_to; | |
47 | __u8 mode; | |
48 | }; | |
49 | ||
50 | #define L2CAP_CONNINFO 0x02 | |
51 | struct l2cap_conninfo { | |
52 | __u16 hci_handle; | |
53 | __u8 dev_class[3]; | |
54 | }; | |
55 | ||
56 | #define L2CAP_LM 0x03 | |
57 | #define L2CAP_LM_MASTER 0x0001 | |
58 | #define L2CAP_LM_AUTH 0x0002 | |
59 | #define L2CAP_LM_ENCRYPT 0x0004 | |
60 | #define L2CAP_LM_TRUSTED 0x0008 | |
61 | #define L2CAP_LM_RELIABLE 0x0010 | |
62 | #define L2CAP_LM_SECURE 0x0020 | |
63 | ||
64 | /* L2CAP command codes */ | |
65 | #define L2CAP_COMMAND_REJ 0x01 | |
66 | #define L2CAP_CONN_REQ 0x02 | |
67 | #define L2CAP_CONN_RSP 0x03 | |
68 | #define L2CAP_CONF_REQ 0x04 | |
69 | #define L2CAP_CONF_RSP 0x05 | |
70 | #define L2CAP_DISCONN_REQ 0x06 | |
71 | #define L2CAP_DISCONN_RSP 0x07 | |
72 | #define L2CAP_ECHO_REQ 0x08 | |
73 | #define L2CAP_ECHO_RSP 0x09 | |
74 | #define L2CAP_INFO_REQ 0x0a | |
75 | #define L2CAP_INFO_RSP 0x0b | |
76 | ||
77 | /* L2CAP structures */ | |
78 | struct l2cap_hdr { | |
79 | __u16 len; | |
80 | __u16 cid; | |
81 | } __attribute__ ((packed)); | |
82 | #define L2CAP_HDR_SIZE 4 | |
83 | ||
84 | struct l2cap_cmd_hdr { | |
85 | __u8 code; | |
86 | __u8 ident; | |
87 | __u16 len; | |
88 | } __attribute__ ((packed)); | |
89 | #define L2CAP_CMD_HDR_SIZE 4 | |
90 | ||
91 | struct l2cap_cmd_rej { | |
92 | __u16 reason; | |
93 | } __attribute__ ((packed)); | |
94 | ||
95 | struct l2cap_conn_req { | |
96 | __u16 psm; | |
97 | __u16 scid; | |
98 | } __attribute__ ((packed)); | |
99 | ||
100 | struct l2cap_conn_rsp { | |
101 | __u16 dcid; | |
102 | __u16 scid; | |
103 | __u16 result; | |
104 | __u16 status; | |
105 | } __attribute__ ((packed)); | |
106 | ||
107 | /* connect result */ | |
108 | #define L2CAP_CR_SUCCESS 0x0000 | |
109 | #define L2CAP_CR_PEND 0x0001 | |
110 | #define L2CAP_CR_BAD_PSM 0x0002 | |
111 | #define L2CAP_CR_SEC_BLOCK 0x0003 | |
112 | #define L2CAP_CR_NO_MEM 0x0004 | |
113 | ||
114 | /* connect status */ | |
115 | #define L2CAP_CS_NO_INFO 0x0000 | |
116 | #define L2CAP_CS_AUTHEN_PEND 0x0001 | |
117 | #define L2CAP_CS_AUTHOR_PEND 0x0002 | |
118 | ||
119 | struct l2cap_conf_req { | |
120 | __u16 dcid; | |
121 | __u16 flags; | |
122 | __u8 data[0]; | |
123 | } __attribute__ ((packed)); | |
124 | ||
125 | struct l2cap_conf_rsp { | |
126 | __u16 scid; | |
127 | __u16 flags; | |
128 | __u16 result; | |
129 | __u8 data[0]; | |
130 | } __attribute__ ((packed)); | |
131 | ||
132 | #define L2CAP_CONF_SUCCESS 0x00 | |
133 | #define L2CAP_CONF_UNACCEPT 0x01 | |
134 | ||
135 | struct l2cap_conf_opt { | |
136 | __u8 type; | |
137 | __u8 len; | |
138 | __u8 val[0]; | |
139 | } __attribute__ ((packed)); | |
140 | #define L2CAP_CONF_OPT_SIZE 2 | |
141 | ||
142 | #define L2CAP_CONF_MTU 0x01 | |
143 | #define L2CAP_CONF_FLUSH_TO 0x02 | |
144 | #define L2CAP_CONF_QOS 0x03 | |
145 | #define L2CAP_CONF_RFC 0x04 | |
146 | ||
147 | #define L2CAP_CONF_MAX_SIZE 22 | |
148 | ||
149 | struct l2cap_disconn_req { | |
150 | __u16 dcid; | |
151 | __u16 scid; | |
152 | } __attribute__ ((packed)); | |
153 | ||
154 | struct l2cap_disconn_rsp { | |
155 | __u16 dcid; | |
156 | __u16 scid; | |
157 | } __attribute__ ((packed)); | |
158 | ||
159 | struct l2cap_info_req { | |
160 | __u16 type; | |
161 | __u8 data[0]; | |
162 | } __attribute__ ((packed)); | |
163 | ||
164 | struct l2cap_info_rsp { | |
165 | __u16 type; | |
166 | __u16 result; | |
167 | __u8 data[0]; | |
168 | } __attribute__ ((packed)); | |
169 | ||
170 | /* info type */ | |
171 | #define L2CAP_IT_CL_MTU 0x0001 | |
172 | #define L2CAP_IT_FEAT_MASK 0x0002 | |
173 | ||
174 | /* info result */ | |
175 | #define L2CAP_IR_SUCCESS 0x0000 | |
176 | #define L2CAP_IR_NOTSUPP 0x0001 | |
177 | ||
178 | /* ----- L2CAP connections ----- */ | |
179 | struct l2cap_chan_list { | |
180 | struct sock *head; | |
181 | rwlock_t lock; | |
182 | long num; | |
183 | }; | |
184 | ||
185 | struct l2cap_conn { | |
186 | struct hci_conn *hcon; | |
187 | ||
188 | bdaddr_t *dst; | |
189 | bdaddr_t *src; | |
190 | ||
191 | unsigned int mtu; | |
192 | ||
193 | spinlock_t lock; | |
194 | ||
195 | struct sk_buff *rx_skb; | |
196 | __u32 rx_len; | |
197 | __u8 rx_ident; | |
198 | __u8 tx_ident; | |
199 | ||
200 | struct l2cap_chan_list chan_list; | |
201 | }; | |
202 | ||
203 | /* ----- L2CAP channel and socket info ----- */ | |
204 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) | |
205 | ||
206 | struct l2cap_pinfo { | |
207 | struct bt_sock bt; | |
208 | __u16 psm; | |
209 | __u16 dcid; | |
210 | __u16 scid; | |
211 | ||
212 | __u16 imtu; | |
213 | __u16 omtu; | |
214 | __u16 flush_to; | |
215 | ||
216 | __u32 link_mode; | |
217 | ||
218 | __u8 conf_state; | |
219 | __u8 conf_retry; | |
220 | __u16 conf_mtu; | |
221 | ||
222 | __u8 ident; | |
223 | ||
224 | __u16 sport; | |
225 | ||
226 | struct l2cap_conn *conn; | |
227 | struct sock *next_c; | |
228 | struct sock *prev_c; | |
229 | }; | |
230 | ||
231 | #define L2CAP_CONF_REQ_SENT 0x01 | |
232 | #define L2CAP_CONF_INPUT_DONE 0x02 | |
233 | #define L2CAP_CONF_OUTPUT_DONE 0x04 | |
234 | #define L2CAP_CONF_MAX_RETRIES 2 | |
235 | ||
236 | void l2cap_load(void); | |
237 | ||
238 | #endif /* __L2CAP_H */ |