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TOMOYO Linux Cross Reference
Linux/net/bluetooth/bnep/bnep.h

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  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[0];
 78 } __packed;
 79 
 80 struct bnep_set_filter_req {
 81         __u8 type;
 82         __u8 ctrl;
 83         __be16 len;
 84         __u8 list[0];
 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[0];
 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 
168 static inline int bnep_mc_hash(__u8 *addr)
169 {
170         return crc32_be(~0, addr, ETH_ALEN) >> 26;
171 }
172 
173 #endif
174 

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