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/*
20 * $Id: bnep.h,v 1.1.1.1 2007/08/03 18:53:50 Exp $
21 */
22
23#ifndef _BNEP_H
24#define _BNEP_H
25
26#include <linux/types.h>
27#include <linux/crc32.h>
28#include <net/bluetooth/bluetooth.h>
29
30// Limits
31#define BNEP_MAX_PROTO_FILTERS     5
32#define BNEP_MAX_MULTICAST_FILTERS 20
33
34// UUIDs
35#define BNEP_BASE_UUID 0x0000000000001000800000805F9B34FB
36#define BNEP_UUID16    0x02
37#define BNEP_UUID32    0x04
38#define BNEP_UUID128   0x16
39
40#define BNEP_SVC_PANU  0x1115
41#define BNEP_SVC_NAP   0x1116
42#define BNEP_SVC_GN    0x1117
43
44// Packet types
45#define BNEP_GENERAL               0x00
46#define BNEP_CONTROL               0x01
47#define BNEP_COMPRESSED            0x02
48#define BNEP_COMPRESSED_SRC_ONLY   0x03
49#define BNEP_COMPRESSED_DST_ONLY   0x04
50
51// Control types
52#define BNEP_CMD_NOT_UNDERSTOOD    0x00
53#define BNEP_SETUP_CONN_REQ        0x01
54#define BNEP_SETUP_CONN_RSP        0x02
55#define BNEP_FILTER_NET_TYPE_SET   0x03
56#define BNEP_FILTER_NET_TYPE_RSP   0x04
57#define BNEP_FILTER_MULTI_ADDR_SET 0x05
58#define BNEP_FILTER_MULTI_ADDR_RSP 0x06
59
60// Extension types
61#define BNEP_EXT_CONTROL           0x00
62
63// Response messages
64#define BNEP_SUCCESS               0x00
65
66#define BNEP_CONN_INVALID_DST      0x01
67#define BNEP_CONN_INVALID_SRC      0x02
68#define BNEP_CONN_INVALID_SVC      0x03
69#define BNEP_CONN_NOT_ALLOWED      0x04
70
71#define BNEP_FILTER_UNSUPPORTED_REQ    0x01
72#define BNEP_FILTER_INVALID_RANGE      0x02
73#define BNEP_FILTER_INVALID_MCADDR     0x02
74#define BNEP_FILTER_LIMIT_REACHED      0x03
75#define BNEP_FILTER_DENIED_SECURITY    0x04
76
77// L2CAP settings
78#define BNEP_MTU         1691
79#define BNEP_PSM	 0x0f
80#define BNEP_FLUSH_TO    0xffff
81#define BNEP_CONNECT_TO  15
82#define BNEP_FILTER_TO   15
83
84// Headers
85#define BNEP_TYPE_MASK	 0x7f
86#define BNEP_EXT_HEADER	 0x80
87
88struct bnep_setup_conn_req {
89	__u8  type;
90	__u8  ctrl;
91	__u8  uuid_size;
92	__u8  service[0];
93} __attribute__((packed));
94
95struct bnep_set_filter_req {
96	__u8  type;
97	__u8  ctrl;
98	__be16 len;
99	__u8  list[0];
100} __attribute__((packed));
101
102struct bnep_control_rsp {
103	__u8  type;
104	__u8  ctrl;
105	__be16 resp;
106} __attribute__((packed));
107
108struct bnep_ext_hdr {
109	__u8  type;
110	__u8  len;
111	__u8  data[0];
112} __attribute__((packed));
113
114/* BNEP ioctl defines */
115#define BNEPCONNADD	_IOW('B', 200, int)
116#define BNEPCONNDEL	_IOW('B', 201, int)
117#define BNEPGETCONNLIST	_IOR('B', 210, int)
118#define BNEPGETCONNINFO	_IOR('B', 211, int)
119
120struct bnep_connadd_req {
121	int   sock;       // Connected socket
122	__u32 flags;
123	__u16 role;
124	char  device[16]; // Name of the Ethernet device
125};
126
127struct bnep_conndel_req {
128	__u32 flags;
129	__u8  dst[ETH_ALEN];
130};
131
132struct bnep_conninfo {
133	__u32 flags;
134	__u16 role;
135	__u16 state;
136	__u8  dst[ETH_ALEN];
137	char  device[16];
138};
139
140struct bnep_connlist_req {
141	__u32  cnum;
142	struct bnep_conninfo __user *ci;
143};
144
145struct bnep_proto_filter {
146	__u16 start;
147	__u16 end;
148};
149
150int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
151int bnep_del_connection(struct bnep_conndel_req *req);
152int bnep_get_connlist(struct bnep_connlist_req *req);
153int bnep_get_conninfo(struct bnep_conninfo *ci);
154
155// BNEP sessions
156struct bnep_session {
157	struct list_head list;
158
159	unsigned int  role;
160	unsigned long state;
161	unsigned long flags;
162	atomic_t      killed;
163
164	struct ethhdr eh;
165	struct msghdr msg;
166
167	struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
168	u64    mc_filter;
169
170	struct socket    *sock;
171	struct net_device *dev;
172	struct net_device_stats stats;
173};
174
175void bnep_net_setup(struct net_device *dev);
176int bnep_sock_init(void);
177int bnep_sock_cleanup(void);
178
179static inline int bnep_mc_hash(__u8 *addr)
180{
181	return (crc32_be(~0, addr, ETH_ALEN) >> 26);
182}
183
184#endif
185