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, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #ifndef _BNEP_H
  19 #define _BNEP_H
  20
  21 #include <linux/types.h>
  22 #include <linux/crc32.h>
  23 #include <net/bluetooth/bluetooth.h>
  24
  25 /* Limits */
  26 #define BNEP_MAX_PROTO_FILTERS          5
  27 #define BNEP_MAX_MULTICAST_FILTERS      20
  28
  29 /* UUIDs */
  30 #define BNEP_BASE_UUID  0x0000000000001000800000805F9B34FB
  31 #define BNEP_UUID16     0x02
  32 #define BNEP_UUID32     0x04
  33 #define BNEP_UUID128    0x16
  34
  35 #define BNEP_SVC_PANU   0x1115
  36 #define BNEP_SVC_NAP    0x1116
  37 #define BNEP_SVC_GN     0x1117
  38
  39 /* Packet types */
  40 #define BNEP_GENERAL                    0x00
  41 #define BNEP_CONTROL                    0x01
  42 #define BNEP_COMPRESSED                 0x02
  43 #define BNEP_COMPRESSED_SRC_ONLY        0x03
  44 #define BNEP_COMPRESSED_DST_ONLY        0x04
  45
  46 /* Control types */
  47 #define BNEP_CMD_NOT_UNDERSTOOD         0x00
  48 #define BNEP_SETUP_CONN_REQ             0x01
  49 #define BNEP_SETUP_CONN_RSP             0x02
  50 #define BNEP_FILTER_NET_TYPE_SET        0x03
  51 #define BNEP_FILTER_NET_TYPE_RSP        0x04
  52 #define BNEP_FILTER_MULTI_ADDR_SET      0x05
  53 #define BNEP_FILTER_MULTI_ADDR_RSP      0x06
  54
  55 /* Extension types */
  56 #define BNEP_EXT_CONTROL 0x00
  57
  58 /* Response messages */
  59 #define BNEP_SUCCESS 0x00
  60
  61 #define BNEP_CONN_INVALID_DST 0x01
  62 #define BNEP_CONN_INVALID_SRC 0x02
  63 #define BNEP_CONN_INVALID_SVC 0x03
  64 #define BNEP_CONN_NOT_ALLOWED 0x04
  65
  66 #define BNEP_FILTER_UNSUPPORTED_REQ     0x01
  67 #define BNEP_FILTER_INVALID_RANGE       0x02
  68 #define BNEP_FILTER_INVALID_MCADDR      0x02
  69 #define BNEP_FILTER_LIMIT_REACHED       0x03
  70 #define BNEP_FILTER_DENIED_SECURITY     0x04
  71
  72 /* L2CAP settings */
  73 #define BNEP_MTU        1691
  74 #define BNEP_PSM        0x0f
  75 #define BNEP_FLUSH_TO   0xffff
  76 #define BNEP_CONNECT_TO 15
  77 #define BNEP_FILTER_TO  15
  78
  79 /* Headers */
  80 #define BNEP_TYPE_MASK  0x7f
  81 #define BNEP_EXT_HEADER 0x80
  82
  83 struct bnep_setup_conn_req {
  84         __u8 type;
  85         __u8 ctrl;
  86         __u8 uuid_size;
  87         __u8 service[0];
  88 } __packed;
  89
  90 struct bnep_set_filter_req {
  91         __u8 type;
  92         __u8 ctrl;
  93         __be16 len;
  94         __u8 list[0];
  95 } __packed;
  96
  97 struct bnep_control_rsp {
  98         __u8 type;
  99         __u8 ctrl;
 100         __be16 resp;
 101 } __packed;
 102
 103 struct bnep_ext_hdr {
 104         __u8 type;
 105         __u8 len;
 106         __u8 data[0];
 107 } __packed;
 108
 109 /* BNEP ioctl defines */
 110 #define BNEPCONNADD     _IOW('B', 200, int)
 111 #define BNEPCONNDEL     _IOW('B', 201, int)
 112 #define BNEPGETCONNLIST _IOR('B', 210, int)
 113 #define BNEPGETCONNINFO _IOR('B', 211, int)
 114
 115 struct bnep_connadd_req {
 116         int   sock;             /* Connected socket */
 117         __u32 flags;
 118         __u16 role;
 119         char  device[16];       /* Name of the Ethernet device */
 120 };
 121
 122 struct bnep_conndel_req {
 123         __u32 flags;
 124         __u8  dst[ETH_ALEN];
 125 };
 126
 127 struct bnep_conninfo {
 128         __u32 flags;
 129         __u16 role;
 130         __u16 state;
 131         __u8  dst[ETH_ALEN];
 132         char  device[16];
 133 };
 134
 135 struct bnep_connlist_req {
 136         __u32  cnum;
 137         struct bnep_conninfo __user *ci;
 138 };
 139
 140 struct bnep_proto_filter {
 141         __u16 start;
 142         __u16 end;
 143 };
 144
 145 int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
 146 int bnep_del_connection(struct bnep_conndel_req *req);
 147 int bnep_get_connlist(struct bnep_connlist_req *req);
 148 int bnep_get_conninfo(struct bnep_conninfo *ci);
 149
 150 /* BNEP sessions */
 151 struct bnep_session {
 152         struct list_head list;
 153
 154         unsigned int  role;
 155         unsigned long state;
 156         unsigned long flags;
 157         atomic_t      terminate;
 158         struct task_struct *task;
 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