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, 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
  83struct bnep_setup_conn_req {
  84        __u8 type;
  85        __u8 ctrl;
  86        __u8 uuid_size;
  87        __u8 service[0];
  88} __packed;
  89
  90struct bnep_set_filter_req {
  91        __u8 type;
  92        __u8 ctrl;
  93        __be16 len;
  94        __u8 list[0];
  95} __packed;
  96
  97struct bnep_control_rsp {
  98        __u8 type;
  99        __u8 ctrl;
 100        __be16 resp;
 101} __packed;
 102
 103struct 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#define BNEPGETSUPPFEAT _IOR('B', 212, int)
 115
 116#define BNEP_SETUP_RESPONSE     0
 117#define BNEP_SETUP_RSP_SENT     10
 118
 119struct bnep_connadd_req {
 120        int   sock;             /* Connected socket */
 121        __u32 flags;
 122        __u16 role;
 123        char  device[16];       /* Name of the Ethernet device */
 124};
 125
 126struct bnep_conndel_req {
 127        __u32 flags;
 128        __u8  dst[ETH_ALEN];
 129};
 130
 131struct bnep_conninfo {
 132        __u32 flags;
 133        __u16 role;
 134        __u16 state;
 135        __u8  dst[ETH_ALEN];
 136        char  device[16];
 137};
 138
 139struct bnep_connlist_req {
 140        __u32  cnum;
 141        struct bnep_conninfo __user *ci;
 142};
 143
 144struct bnep_proto_filter {
 145        __u16 start;
 146        __u16 end;
 147};
 148
 149int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
 150int bnep_del_connection(struct bnep_conndel_req *req);
 151int bnep_get_connlist(struct bnep_connlist_req *req);
 152int bnep_get_conninfo(struct bnep_conninfo *ci);
 153
 154/* BNEP sessions */
 155struct bnep_session {
 156        struct list_head list;
 157
 158        unsigned int  role;
 159        unsigned long state;
 160        unsigned long flags;
 161        atomic_t      terminate;
 162        struct task_struct *task;
 163
 164        struct ethhdr eh;
 165        struct msghdr msg;
 166
 167        struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
 168        unsigned long long mc_filter;
 169
 170        struct socket    *sock;
 171        struct net_device *dev;
 172};
 173
 174void bnep_net_setup(struct net_device *dev);
 175int bnep_sock_init(void);
 176void bnep_sock_cleanup(void);
 177
 178static inline int bnep_mc_hash(__u8 *addr)
 179{
 180        return crc32_be(~0, addr, ETH_ALEN) >> 26;
 181}
 182
 183#endif
 184