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
  84 struct bnep_setup_conn_req {
  85         __u8  type;
  86         __u8  ctrl;
  87         __u8  uuid_size;
  88         __u8  service[0];
  89 } __packed;
  90
  91 struct bnep_set_filter_req {
  92         __u8  type;
  93         __u8  ctrl;
  94         __be16 len;
  95         __u8  list[0];
  96 } __packed;
  97
  98 struct bnep_control_rsp {
  99         __u8  type;
 100         __u8  ctrl;
 101         __be16 resp;
 102 } __packed;
 103
 104 struct 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
 116 struct 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
 123 struct bnep_conndel_req {
 124         __u32 flags;
 125         __u8  dst[ETH_ALEN];
 126 };
 127
 128 struct bnep_conninfo {
 129         __u32 flags;
 130         __u16 role;
 131         __u16 state;
 132         __u8  dst[ETH_ALEN];
 133         char  device[16];
 134 };
 135
 136 struct bnep_connlist_req {
 137         __u32  cnum;
 138         struct bnep_conninfo __user *ci;
 139 };
 140
 141 struct bnep_proto_filter {
 142         __u16 start;
 143         __u16 end;
 144 };
 145
 146 int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
 147 int bnep_del_connection(struct bnep_conndel_req *req);
 148 int bnep_get_connlist(struct bnep_connlist_req *req);
 149 int bnep_get_conninfo(struct bnep_conninfo *ci);
 150
 151 // BNEP sessions
 152 struct 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
 170 void bnep_net_setup(struct net_device *dev);
 171 int bnep_sock_init(void);
 172 void bnep_sock_cleanup(void);
 173
 174 static inline int bnep_mc_hash(__u8 *addr)
 175 {
 176         return (crc32_be(~0, addr, ETH_ALEN) >> 26);
 177 }
 178
 179 #endif