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 115struct 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 122struct bnep_conndel_req { 123 __u32 flags; 124 __u8 dst[ETH_ALEN]; 125}; 126 127struct bnep_conninfo { 128 __u32 flags; 129 __u16 role; 130 __u16 state; 131 __u8 dst[ETH_ALEN]; 132 char device[16]; 133}; 134 135struct bnep_connlist_req { 136 __u32 cnum; 137 struct bnep_conninfo __user *ci; 138}; 139 140struct bnep_proto_filter { 141 __u16 start; 142 __u16 end; 143}; 144 145int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock); 146int bnep_del_connection(struct bnep_conndel_req *req); 147int bnep_get_connlist(struct bnep_connlist_req *req); 148int bnep_get_conninfo(struct bnep_conninfo *ci); 149 150/* BNEP sessions */ 151struct 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 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