LXR linux/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#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} __attribute__((packed));
  90
  91struct bnep_set_filter_req {
  92        __u8  type;
  93        __u8  ctrl;
  94        __be16 len;
  95        __u8  list[0];
  96} __attribute__((packed));
  97
  98struct bnep_control_rsp {
  99        __u8  type;
 100        __u8  ctrl;
 101        __be16 resp;
 102} __attribute__((packed));
 103
 104struct 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
 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      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
 170void bnep_net_setup(struct net_device *dev);
 171int bnep_sock_init(void);
 172void bnep_sock_cleanup(void);
 173
 174static inline int bnep_mc_hash(__u8 *addr)
 175{
 176        return (crc32_be(~0, addr, ETH_ALEN) >> 26);
 177}
 178
 179#endif
 180