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 180