1 /*
2 BNEP protocol definition for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License, version 2, as
7 published by the Free Software Foundation.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #ifndef _BNEP_H
19 #define _BNEP_H
20
21 #include <linux/types.h>
22 #include <linux/crc32.h>
23 #include <net/bluetooth/bluetooth.h>
24
25 /* Limits */
26 #define BNEP_MAX_PROTO_FILTERS 5
27 #define BNEP_MAX_MULTICAST_FILTERS 20
28
29 /* UUIDs */
30 #define BNEP_BASE_UUID 0x0000000000001000800000805F9B34FB
31 #define BNEP_UUID16 0x02
32 #define BNEP_UUID32 0x04
33 #define BNEP_UUID128 0x16
34
35 #define BNEP_SVC_PANU 0x1115
36 #define BNEP_SVC_NAP 0x1116
37 #define BNEP_SVC_GN 0x1117
38
39 /* Packet types */
40 #define BNEP_GENERAL 0x00
41 #define BNEP_CONTROL 0x01
42 #define BNEP_COMPRESSED 0x02
43 #define BNEP_COMPRESSED_SRC_ONLY 0x03
44 #define BNEP_COMPRESSED_DST_ONLY 0x04
45
46 /* Control types */
47 #define BNEP_CMD_NOT_UNDERSTOOD 0x00
48 #define BNEP_SETUP_CONN_REQ 0x01
49 #define BNEP_SETUP_CONN_RSP 0x02
50 #define BNEP_FILTER_NET_TYPE_SET 0x03
51 #define BNEP_FILTER_NET_TYPE_RSP 0x04
52 #define BNEP_FILTER_MULTI_ADDR_SET 0x05
53 #define BNEP_FILTER_MULTI_ADDR_RSP 0x06
54
55 /* Extension types */
56 #define BNEP_EXT_CONTROL 0x00
57
58 /* Response messages */
59 #define BNEP_SUCCESS 0x00
60
61 #define BNEP_CONN_INVALID_DST 0x01
62 #define BNEP_CONN_INVALID_SRC 0x02
63 #define BNEP_CONN_INVALID_SVC 0x03
64 #define BNEP_CONN_NOT_ALLOWED 0x04
65
66 #define BNEP_FILTER_UNSUPPORTED_REQ 0x01
67 #define BNEP_FILTER_INVALID_RANGE 0x02
68 #define BNEP_FILTER_INVALID_MCADDR 0x02
69 #define BNEP_FILTER_LIMIT_REACHED 0x03
70 #define BNEP_FILTER_DENIED_SECURITY 0x04
71
72 /* L2CAP settings */
73 #define BNEP_MTU 1691
74 #define BNEP_PSM 0x0f
75 #define BNEP_FLUSH_TO 0xffff
76 #define BNEP_CONNECT_TO 15
77 #define BNEP_FILTER_TO 15
78
79 /* Headers */
80 #define BNEP_TYPE_MASK 0x7f
81 #define BNEP_EXT_HEADER 0x80
82
83 struct bnep_setup_conn_req {
84 __u8 type;
85 __u8 ctrl;
86 __u8 uuid_size;
87 __u8 service[0];
88 } __packed;
89
90 struct bnep_set_filter_req {
91 __u8 type;
92 __u8 ctrl;
93 __be16 len;
94 __u8 list[0];
95 } __packed;
96
97 struct bnep_control_rsp {
98 __u8 type;
99 __u8 ctrl;
100 __be16 resp;
101 } __packed;
102
103 struct bnep_ext_hdr {
104 __u8 type;
105 __u8 len;
106 __u8 data[0];
107 } __packed;
108
109 /* BNEP ioctl defines */
110 #define BNEPCONNADD _IOW('B', 200, int)
111 #define BNEPCONNDEL _IOW('B', 201, int)
112 #define BNEPGETCONNLIST _IOR('B', 210, int)
113 #define BNEPGETCONNINFO _IOR('B', 211, int)
114 #define BNEPGETSUPPFEAT _IOR('B', 212, int)
115
116 #define BNEP_SETUP_RESPONSE 0
117 #define BNEP_SETUP_RSP_SENT 10
118
119 struct bnep_connadd_req {
120 int sock; /* Connected socket */
121 __u32 flags;
122 __u16 role;
123 char device[16]; /* Name of the Ethernet device */
124 };
125
126 struct bnep_conndel_req {
127 __u32 flags;
128 __u8 dst[ETH_ALEN];
129 };
130
131 struct bnep_conninfo {
132 __u32 flags;
133 __u16 role;
134 __u16 state;
135 __u8 dst[ETH_ALEN];
136 char device[16];
137 };
138
139 struct bnep_connlist_req {
140 __u32 cnum;
141 struct bnep_conninfo __user *ci;
142 };
143
144 struct bnep_proto_filter {
145 __u16 start;
146 __u16 end;
147 };
148
149 int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
150 int bnep_del_connection(struct bnep_conndel_req *req);
151 int bnep_get_connlist(struct bnep_connlist_req *req);
152 int bnep_get_conninfo(struct bnep_conninfo *ci);
153
154 /* BNEP sessions */
155 struct bnep_session {
156 struct list_head list;
157
158 unsigned int role;
159 unsigned long state;
160 unsigned long flags;
161 atomic_t terminate;
162 struct task_struct *task;
163
164 struct ethhdr eh;
165 struct msghdr msg;
166
167 struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
168 unsigned long long mc_filter;
169
170 struct socket *sock;
171 struct net_device *dev;
172 };
173
174 void bnep_net_setup(struct net_device *dev);
175 int bnep_sock_init(void);
176 void bnep_sock_cleanup(void);
177
bnep_mc_hash(__u8 * addr)178 static inline int bnep_mc_hash(__u8 *addr)
179 {
180 return crc32_be(~0, addr, ETH_ALEN) >> 26;
181 }
182
183 #endif
184