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 2008/10/15 03:27:33 james26_jang Exp $
21 */
22
23#ifndef _BNEP_H
24#define _BNEP_H
25
26#include <linux/types.h>
27#include <net/bluetooth/bluetooth.h>
28
29#include "crc32.h"
30
31// Limits
32#define BNEP_MAX_PROTO_FILTERS     5
33#define BNEP_MAX_MULTICAST_FILTERS 20
34
35// UUIDs
36#define BNEP_BASE_UUID 0x0000000000001000800000805F9B34FB
37#define BNEP_UUID16    0x02
38#define BNEP_UUID32    0x04
39#define BNEP_UUID128   0x16
40
41#define BNEP_SVC_PANU  0x1115
42#define BNEP_SVC_NAP   0x1116
43#define BNEP_SVC_GN    0x1117
44
45// Packet types
46#define BNEP_GENERAL               0x00
47#define BNEP_CONTROL               0x01
48#define BNEP_COMPRESSED            0x02
49#define BNEP_COMPRESSED_SRC_ONLY   0x03
50#define BNEP_COMPRESSED_DST_ONLY   0x04
51
52// Control types
53#define BNEP_CMD_NOT_UNDERSTOOD    0x00
54#define BNEP_SETUP_CONN_REQ        0x01
55#define BNEP_SETUP_CONN_RSP        0x02
56#define BNEP_FILTER_NET_TYPE_SET   0x03
57#define BNEP_FILTER_NET_TYPE_RSP   0x04
58#define BNEP_FILTER_MULTI_ADDR_SET 0x05
59#define BNEP_FILTER_MULTI_ADDR_RSP 0x06
60
61// Extension types
62#define BNEP_EXT_CONTROL           0x00
63
64// Response messages
65#define BNEP_SUCCESS               0x00
66
67#define BNEP_CONN_INVALID_DST      0x01
68#define BNEP_CONN_INVALID_SRC      0x02
69#define BNEP_CONN_INVALID_SVC      0x03
70#define BNEP_CONN_NOT_ALLOWED      0x04
71
72#define BNEP_FILTER_UNSUPPORTED_REQ    0x01
73#define BNEP_FILTER_INVALID_RANGE      0x02
74#define BNEP_FILTER_INVALID_MCADDR     0x02
75#define BNEP_FILTER_LIMIT_REACHED      0x03
76#define BNEP_FILTER_DENIED_SECURITY    0x04
77
78// L2CAP settings
79#define BNEP_MTU         1691
80#define BNEP_PSM	 0x0f
81#define BNEP_FLUSH_TO    0xffff
82#define BNEP_CONNECT_TO  15
83#define BNEP_FILTER_TO   15
84
85// Headers
86#define BNEP_TYPE_MASK	 0x7f
87#define BNEP_EXT_HEADER	 0x80
88
89struct bnep_setup_conn_req {
90	__u8  type;
91	__u8  ctrl;
92	__u8  uuid_size;
93	__u8  service[0];
94} __attribute__((packed));
95
96struct bnep_set_filter_req {
97	__u8  type;
98	__u8  ctrl;
99	__u16 len;
100	__u8  list[0];
101} __attribute__((packed));
102
103struct bnep_control_rsp {
104	__u8  type;
105	__u8  ctrl;
106	__u16 resp;
107} __attribute__((packed));
108
109struct bnep_ext_hdr {
110	__u8  type;
111	__u8  len;
112	__u8  data[0];
113} __attribute__((packed));
114
115// Ioctl interface
116#define BNEPCONADD      1
117#define BNEPCONDEL      2
118#define BNEPGETCONLIST  3
119#define BNEPGETCONINFO  4
120
121struct bnep_conadd_req {
122	int   sock;       // Connected socket
123	__u32 flags;
124	__u16 role;
125	char  device[16]; // Name of the Ethernet device
126};
127
128struct bnep_condel_req {
129	__u32 flags;
130	__u8  dst[ETH_ALEN];
131};
132
133struct bnep_coninfo {
134	__u32 flags;
135	__u16 role;
136	__u16 state;
137	__u8  dst[ETH_ALEN];
138	char  device[16];
139};
140
141struct bnep_conlist_req {
142	__u32  cnum;
143	struct bnep_coninfo *ci;
144};
145
146struct bnep_proto_filter {
147	__u16 start;
148	__u16 end;
149};
150
151int bnep_add_connection(struct bnep_conadd_req *req, struct socket *sock);
152int bnep_del_connection(struct bnep_condel_req *req);
153int bnep_get_conlist(struct bnep_conlist_req *req);
154int bnep_get_coninfo(struct bnep_coninfo *ci);
155
156// BNEP sessions
157struct bnep_session {
158	struct list_head list;
159
160	unsigned int  role;
161        unsigned long state;
162        unsigned long flags;
163	atomic_t      killed;
164
165	struct ethhdr eh;
166	struct msghdr msg;
167
168	struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
169	u64    mc_filter;
170
171	struct socket    *sock;
172	struct net_device dev;
173	struct net_device_stats stats;
174};
175
176int bnep_net_init(struct net_device *dev);
177int bnep_sock_init(void);
178int bnep_sock_cleanup(void);
179
180static inline int bnep_mc_hash(__u8 *addr)
181{
182        return (bnep_crc32(~0, addr, ETH_ALEN) >> 26);
183}
184
185#endif
186