net/bluetooth/bnep/bnep.h

   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 1.5 2002/08/04 21:23:58 maxk 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
  88 struct bnep_setup_conn_req {
  89         __u8  type;
  90         __u8  ctrl;
  91         __u8  uuid_size;
  92         __u8  service[0];
  93 } __attribute__((packed));
  94
  95 struct bnep_set_filter_req {
  96         __u8  type;
  97         __u8  ctrl;
  98         __be16 len;
  99         __u8  list[0];
 100 } __attribute__((packed));
 101
 102 struct bnep_control_rsp {
 103         __u8  type;
 104         __u8  ctrl;
 105         __be16 resp;
 106 } __attribute__((packed));
 107
 108 struct 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
 120 struct 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
 127 struct bnep_conndel_req {
 128         __u32 flags;
 129         __u8  dst[ETH_ALEN];
 130 };
 131
 132 struct bnep_conninfo {
 133         __u32 flags;
 134         __u16 role;
 135         __u16 state;
 136         __u8  dst[ETH_ALEN];
 137         char  device[16];
 138 };
 139
 140 struct bnep_connlist_req {
 141         __u32  cnum;
 142         struct bnep_conninfo __user *ci;
 143 };
 144
 145 struct bnep_proto_filter {
 146         __u16 start;
 147         __u16 end;
 148 };
 149
 150 int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
 151 int bnep_del_connection(struct bnep_conndel_req *req);
 152 int bnep_get_connlist(struct bnep_connlist_req *req);
 153 int bnep_get_conninfo(struct bnep_conninfo *ci);
 154
 155 // BNEP sessions
 156 struct 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
 175 void bnep_net_setup(struct net_device *dev);
 176 int bnep_sock_init(void);
 177 int bnep_sock_cleanup(void);
 178
 179 static inline int bnep_mc_hash(__u8 *addr)
 180 {
 181         return (crc32_be(~0, addr, ETH_ALEN) >> 26);
 182 }
 183
 184 #endif