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      terminate;
 159         struct task_struct *task;
 160
 161         struct ethhdr eh;
 162         struct msghdr msg;
 163
 164         struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
 165         unsigned long long mc_filter;
 166
 167         struct socket    *sock;
 168         struct net_device *dev;
 169 };
 170
 171 void bnep_net_setup(struct net_device *dev);
 172 int bnep_sock_init(void);
 173 void bnep_sock_cleanup(void);
 174
 175 static inline int bnep_mc_hash(__u8 *addr)
 176 {
 177         return crc32_be(~0, addr, ETH_ALEN) >> 26;
 178 }
 179
 180 #endif