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
84struct bnep_setup_conn_req {
85	__u8 type;
86	__u8 ctrl;
87	__u8 uuid_size;
88	__u8 service[0];
89} __packed;
90
91struct bnep_set_filter_req {
92	__u8 type;
93	__u8 ctrl;
94	__be16 len;
95	__u8 list[0];
96} __packed;
97
98struct bnep_control_rsp {
99	__u8 type;
100	__u8 ctrl;
101	__be16 resp;
102} __packed;
103
104struct bnep_ext_hdr {
105	__u8 type;
106	__u8 len;
107	__u8 data[0];
108} __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
116struct 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
123struct bnep_conndel_req {
124	__u32 flags;
125	__u8  dst[ETH_ALEN];
126};
127
128struct bnep_conninfo {
129	__u32 flags;
130	__u16 role;
131	__u16 state;
132	__u8  dst[ETH_ALEN];
133	char  device[16];
134};
135
136struct bnep_connlist_req {
137	__u32  cnum;
138	struct bnep_conninfo __user *ci;
139};
140
141struct bnep_proto_filter {
142	__u16 start;
143	__u16 end;
144};
145
146int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
147int bnep_del_connection(struct bnep_conndel_req *req);
148int bnep_get_connlist(struct bnep_connlist_req *req);
149int bnep_get_conninfo(struct bnep_conninfo *ci);
150
151/* BNEP sessions */
152struct bnep_session {
153	struct list_head list;
154
155	unsigned int  role;
156	unsigned long state;
157	unsigned long flags;
158	atomic_t      terminate;
159	struct task_struct *task;
160
161	struct ethhdr eh;
162	struct msghdr msg;
163
164	struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
165	unsigned long long mc_filter;
166
167	struct socket    *sock;
168	struct net_device *dev;
169};
170
171void bnep_net_setup(struct net_device *dev);
172int bnep_sock_init(void);
173void bnep_sock_cleanup(void);
174
175static inline int bnep_mc_hash(__u8 *addr)
176{
177	return crc32_be(~0, addr, ETH_ALEN) >> 26;
178}
179
180#endif
181