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, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19 #ifndef _BNEP_H
20 #define _BNEP_H
21
22 #include <linux/types.h>
23 #include <linux/crc32.h>
24 #include <net/bluetooth/bluetooth.h>
25
26 // Limits
27 #define BNEP_MAX_PROTO_FILTERS 5
28 #define BNEP_MAX_MULTICAST_FILTERS 20
29
30 // UUIDs
31 #define BNEP_BASE_UUID 0x0000000000001000800000805F9B34FB
32 #define BNEP_UUID16 0x02
33 #define BNEP_UUID32 0x04
34 #define BNEP_UUID128 0x16
35
36 #define BNEP_SVC_PANU 0x1115
37 #define BNEP_SVC_NAP 0x1116
38 #define BNEP_SVC_GN 0x1117
39
40 // Packet types
41 #define BNEP_GENERAL 0x00
42 #define BNEP_CONTROL 0x01
43 #define BNEP_COMPRESSED 0x02
44 #define BNEP_COMPRESSED_SRC_ONLY 0x03
45 #define BNEP_COMPRESSED_DST_ONLY 0x04
46
47 // Control types
48 #define BNEP_CMD_NOT_UNDERSTOOD 0x00
49 #define BNEP_SETUP_CONN_REQ 0x01
50 #define BNEP_SETUP_CONN_RSP 0x02
51 #define BNEP_FILTER_NET_TYPE_SET 0x03
52 #define BNEP_FILTER_NET_TYPE_RSP 0x04
53 #define BNEP_FILTER_MULTI_ADDR_SET 0x05
54 #define BNEP_FILTER_MULTI_ADDR_RSP 0x06
55
56 // Extension types
57 #define BNEP_EXT_CONTROL 0x00
58
59 // Response messages
60 #define BNEP_SUCCESS 0x00
61
62 #define BNEP_CONN_INVALID_DST 0x01
63 #define BNEP_CONN_INVALID_SRC 0x02
64 #define BNEP_CONN_INVALID_SVC 0x03
65 #define BNEP_CONN_NOT_ALLOWED 0x04
66
67 #define BNEP_FILTER_UNSUPPORTED_REQ 0x01
68 #define BNEP_FILTER_INVALID_RANGE 0x02
69 #define BNEP_FILTER_INVALID_MCADDR 0x02
70 #define BNEP_FILTER_LIMIT_REACHED 0x03
71 #define BNEP_FILTER_DENIED_SECURITY 0x04
72
73 // L2CAP settings
74 #define BNEP_MTU 1691
75 #define BNEP_PSM 0x0f
76 #define BNEP_FLUSH_TO 0xffff
77 #define BNEP_CONNECT_TO 15
78 #define BNEP_FILTER_TO 15
79
80 // Headers
81 #define BNEP_TYPE_MASK 0x7f
82 #define BNEP_EXT_HEADER 0x80
83
84 struct bnep_setup_conn_req {
85 __u8 type;
86 __u8 ctrl;
87 __u8 uuid_size;
88 __u8 service[0];
89 } __attribute__((packed));
90
91 struct bnep_set_filter_req {
92 __u8 type;
93 __u8 ctrl;
94 __be16 len;
95 __u8 list[0];
96 } __attribute__((packed));
97
98 struct bnep_control_rsp {
99 __u8 type;
100 __u8 ctrl;
101 __be16 resp;
102 } __attribute__((packed));
103
104 struct bnep_ext_hdr {
105 __u8 type;
106 __u8 len;
107 __u8 data[0];
108 } __attribute__((packed));
109
110 /* BNEP ioctl defines */
111 #define BNEPCONNADD _IOW('B', 200, int)
112 #define BNEPCONNDEL _IOW('B', 201, int)
113 #define BNEPGETCONNLIST _IOR('B', 210, int)
114 #define BNEPGETCONNINFO _IOR('B', 211, int)
115
116 struct bnep_connadd_req {
117 int sock; // Connected socket
118 __u32 flags;
119 __u16 role;
120 char device[16]; // Name of the Ethernet device
121 };
122
123 struct bnep_conndel_req {
124 __u32 flags;
125 __u8 dst[ETH_ALEN];
126 };
127
128 struct bnep_conninfo {
129 __u32 flags;
130 __u16 role;
131 __u16 state;
132 __u8 dst[ETH_ALEN];
133 char device[16];
134 };
135
136 struct bnep_connlist_req {
137 __u32 cnum;
138 struct bnep_conninfo __user *ci;
139 };
140
141 struct bnep_proto_filter {
142 __u16 start;
143 __u16 end;
144 };
145
146 int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
147 int bnep_del_connection(struct bnep_conndel_req *req);
148 int bnep_get_connlist(struct bnep_connlist_req *req);
149 int bnep_get_conninfo(struct bnep_conninfo *ci);
150
151 // BNEP sessions
152 struct bnep_session {
153 struct list_head list;
154
155 unsigned int role;
156 unsigned long state;
157 unsigned long flags;
158 atomic_t killed;
159
160 struct ethhdr eh;
161 struct msghdr msg;
162
163 struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
164 unsigned long long mc_filter;
165
166 struct socket *sock;
167 struct net_device *dev;
168 };
169
170 void bnep_net_setup(struct net_device *dev);
171 int bnep_sock_init(void);
172 void bnep_sock_cleanup(void);
173
174 static inline int bnep_mc_hash(__u8 *addr)
175 {
176 return (crc32_be(~0, addr, ETH_ALEN) >> 26);
177 }
178
179 #endif
180
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