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