2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
28 #include <linux/poll.h>
30 #include <linux/seq_file.h>
33 #define AF_BLUETOOTH 31
34 #define PF_BLUETOOTH AF_BLUETOOTH
37 /* Bluetooth versions */
38 #define BLUETOOTH_VER_1_1 1
39 #define BLUETOOTH_VER_1_2 2
40 #define BLUETOOTH_VER_2_0 3
42 /* Reserv for core and drivers use */
43 #define BT_SKB_RESERVE 8
45 #define BTPROTO_L2CAP 0
48 #define BTPROTO_RFCOMM 3
49 #define BTPROTO_BNEP 4
50 #define BTPROTO_CMTP 5
51 #define BTPROTO_HIDP 6
52 #define BTPROTO_AVDTP 7
64 #define BT_SECURITY_SDP 0
65 #define BT_SECURITY_LOW 1
66 #define BT_SECURITY_MEDIUM 2
67 #define BT_SECURITY_HIGH 3
69 #define BT_DEFER_SETUP 7
71 #define BT_FLUSHABLE 8
73 #define BT_FLUSHABLE_OFF 0
74 #define BT_FLUSHABLE_ON 1
80 #define BT_POWER_FORCE_ACTIVE_OFF 0
81 #define BT_POWER_FORCE_ACTIVE_ON 1
83 #define BT_CHANNEL_POLICY 10
85 /* BR/EDR only (default policy)
86 * AMP controllers cannot be used.
87 * Channel move requests from the remote device are denied.
88 * If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
90 #define BT_CHANNEL_POLICY_BREDR_ONLY 0
93 * Allow use of AMP controllers.
94 * If the L2CAP channel is currently on AMP, move it to BR/EDR.
95 * Channel move requests from the remote device are allowed.
97 #define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
100 * Allow use of AMP controllers
101 * If the L2CAP channel is currently on BR/EDR and AMP controller
102 * resources are available, initiate a channel move to AMP.
103 * Channel move requests from the remote device are allowed.
104 * If the L2CAP socket has not been connected yet, try to create
105 * and configure the channel directly on an AMP controller rather
108 #define BT_CHANNEL_POLICY_AMP_PREFERRED 2
111 int bt_info(const char *fmt, ...);
113 int bt_err(const char *fmt, ...);
115 #define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
116 #define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
117 #define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
119 /* Connection and socket states */
121 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
132 /* If unused will be removed by compiler */
133 static inline const char *state_to_string(int state)
137 return "BT_CONNECTED";
147 return "BT_CONNECT2";
156 return "invalid state";
164 /* BD Address type */
165 #define BDADDR_BREDR 0x00
166 #define BDADDR_LE_PUBLIC 0x01
167 #define BDADDR_LE_RANDOM 0x02
169 static inline bool bdaddr_type_is_valid(__u8 type)
173 case BDADDR_LE_PUBLIC:
174 case BDADDR_LE_RANDOM:
181 static inline bool bdaddr_type_is_le(__u8 type)
184 case BDADDR_LE_PUBLIC:
185 case BDADDR_LE_RANDOM:
192 #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0} })
193 #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff} })
195 /* Copy, swap, convert BD Address */
196 static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
198 return memcmp(ba1, ba2, sizeof(bdaddr_t));
200 static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
202 memcpy(dst, src, sizeof(bdaddr_t));
205 void baswap(bdaddr_t *dst, bdaddr_t *src);
207 /* Common socket structures and functions */
209 #define bt_sk(__sk) ((struct bt_sock *) __sk)
215 struct list_head accept_q;
225 struct bt_sock_list {
226 struct hlist_head head;
228 #ifdef CONFIG_PROC_FS
229 struct file_operations fops;
230 int (* custom_seq_show)(struct seq_file *, void *);
234 int bt_sock_register(int proto, const struct net_proto_family *ops);
235 int bt_sock_unregister(int proto);
236 void bt_sock_link(struct bt_sock_list *l, struct sock *s);
237 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
238 int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
239 struct msghdr *msg, size_t len, int flags);
240 int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
241 struct msghdr *msg, size_t len, int flags);
242 uint bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
243 int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
244 int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
246 void bt_accept_enqueue(struct sock *parent, struct sock *sk);
247 void bt_accept_unlink(struct sock *sk);
248 struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
252 unsigned int sframe:1,
268 struct l2cap_ctrl control;
270 #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
272 static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
276 skb = alloc_skb(len + BT_SKB_RESERVE, how);
278 skb_reserve(skb, BT_SKB_RESERVE);
279 bt_cb(skb)->incoming = 0;
284 static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
285 unsigned long len, int nb, int *err)
289 skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
291 skb_reserve(skb, BT_SKB_RESERVE);
292 bt_cb(skb)->incoming = 0;
298 *err = sock_error(sk);
302 if (sk->sk_shutdown) {
314 int bt_to_errno(__u16 code);
316 extern int hci_sock_init(void);
317 extern void hci_sock_cleanup(void);
319 extern int bt_sysfs_init(void);
320 extern void bt_sysfs_cleanup(void);
322 extern int bt_procfs_init(struct module* module, struct net *net, const char *name,
323 struct bt_sock_list* sk_list,
324 int (* seq_show)(struct seq_file *, void *));
325 extern void bt_procfs_cleanup(struct net *net, const char *name);
327 extern struct dentry *bt_debugfs;
329 int l2cap_init(void);
330 void l2cap_exit(void);
335 void bt_sock_reclassify_lock(struct sock *sk, int proto);
337 #endif /* __BLUETOOTH_H */