1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 BNEP protocol definition for Linux Bluetooth stack (BlueZ). 4 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com> 5 6 */ 7 8 #ifndef _BNEP_H 9 #define _BNEP_H 10 11 #include <linux/types.h> 12 #include <linux/crc32.h> 13 #include <net/bluetooth/bluetooth.h> 14 15 /* Limits */ 16 #define BNEP_MAX_PROTO_FILTERS 5 17 #define BNEP_MAX_MULTICAST_FILTERS 20 18 19 /* UUIDs */ 20 #define BNEP_BASE_UUID 0x0000000000001000800000805F9B34FB 21 #define BNEP_UUID16 0x02 22 #define BNEP_UUID32 0x04 23 #define BNEP_UUID128 0x16 24 25 #define BNEP_SVC_PANU 0x1115 26 #define BNEP_SVC_NAP 0x1116 27 #define BNEP_SVC_GN 0x1117 28 29 /* Packet types */ 30 #define BNEP_GENERAL 0x00 31 #define BNEP_CONTROL 0x01 32 #define BNEP_COMPRESSED 0x02 33 #define BNEP_COMPRESSED_SRC_ONLY 0x03 34 #define BNEP_COMPRESSED_DST_ONLY 0x04 35 36 /* Control types */ 37 #define BNEP_CMD_NOT_UNDERSTOOD 0x00 38 #define BNEP_SETUP_CONN_REQ 0x01 39 #define BNEP_SETUP_CONN_RSP 0x02 40 #define BNEP_FILTER_NET_TYPE_SET 0x03 41 #define BNEP_FILTER_NET_TYPE_RSP 0x04 42 #define BNEP_FILTER_MULTI_ADDR_SET 0x05 43 #define BNEP_FILTER_MULTI_ADDR_RSP 0x06 44 45 /* Extension types */ 46 #define BNEP_EXT_CONTROL 0x00 47 48 /* Response messages */ 49 #define BNEP_SUCCESS 0x00 50 51 #define BNEP_CONN_INVALID_DST 0x01 52 #define BNEP_CONN_INVALID_SRC 0x02 53 #define BNEP_CONN_INVALID_SVC 0x03 54 #define BNEP_CONN_NOT_ALLOWED 0x04 55 56 #define BNEP_FILTER_UNSUPPORTED_REQ 0x01 57 #define BNEP_FILTER_INVALID_RANGE 0x02 58 #define BNEP_FILTER_INVALID_MCADDR 0x02 59 #define BNEP_FILTER_LIMIT_REACHED 0x03 60 #define BNEP_FILTER_DENIED_SECURITY 0x04 61 62 /* L2CAP settings */ 63 #define BNEP_MTU 1691 64 #define BNEP_PSM 0x0f 65 #define BNEP_FLUSH_TO 0xffff 66 #define BNEP_CONNECT_TO 15 67 #define BNEP_FILTER_TO 15 68 69 /* Headers */ 70 #define BNEP_TYPE_MASK 0x7f 71 #define BNEP_EXT_HEADER 0x80 72 73 struct bnep_setup_conn_req { 74 __u8 type; 75 __u8 ctrl; 76 __u8 uuid_size; 77 __u8 service[]; 78 } __packed; 79 80 struct bnep_set_filter_req { 81 __u8 type; 82 __u8 ctrl; 83 __be16 len; 84 __u8 list[]; 85 } __packed; 86 87 struct bnep_control_rsp { 88 __u8 type; 89 __u8 ctrl; 90 __be16 resp; 91 } __packed; 92 93 struct bnep_ext_hdr { 94 __u8 type; 95 __u8 len; 96 __u8 data[]; 97 } __packed; 98 99 /* BNEP ioctl defines */ 100 #define BNEPCONNADD _IOW('B', 200, int) 101 #define BNEPCONNDEL _IOW('B', 201, int) 102 #define BNEPGETCONNLIST _IOR('B', 210, int) 103 #define BNEPGETCONNINFO _IOR('B', 211, int) 104 #define BNEPGETSUPPFEAT _IOR('B', 212, int) 105 106 #define BNEP_SETUP_RESPONSE 0 107 #define BNEP_SETUP_RSP_SENT 10 108 109 struct bnep_connadd_req { 110 int sock; /* Connected socket */ 111 __u32 flags; 112 __u16 role; 113 char device[16]; /* Name of the Ethernet device */ 114 }; 115 116 struct bnep_conndel_req { 117 __u32 flags; 118 __u8 dst[ETH_ALEN]; 119 }; 120 121 struct bnep_conninfo { 122 __u32 flags; 123 __u16 role; 124 __u16 state; 125 __u8 dst[ETH_ALEN]; 126 char device[16]; 127 }; 128 129 struct bnep_connlist_req { 130 __u32 cnum; 131 struct bnep_conninfo __user *ci; 132 }; 133 134 struct bnep_proto_filter { 135 __u16 start; 136 __u16 end; 137 }; 138 139 int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock); 140 int bnep_del_connection(struct bnep_conndel_req *req); 141 int bnep_get_connlist(struct bnep_connlist_req *req); 142 int bnep_get_conninfo(struct bnep_conninfo *ci); 143 144 /* BNEP sessions */ 145 struct bnep_session { 146 struct list_head list; 147 148 unsigned int role; 149 unsigned long state; 150 unsigned long flags; 151 atomic_t terminate; 152 struct task_struct *task; 153 154 struct ethhdr eh; 155 struct msghdr msg; 156 157 struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS]; 158 unsigned long long mc_filter; 159 160 struct socket *sock; 161 struct net_device *dev; 162 }; 163 164 void bnep_net_setup(struct net_device *dev); 165 int bnep_sock_init(void); 166 void bnep_sock_cleanup(void); 167 bnep_mc_hash(__u8 * addr)168 static inline int bnep_mc_hash(__u8 *addr) 169 { 170 return crc32_be(~0, addr, ETH_ALEN) >> 26; 171 } 172 173 #endif 174