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 <asm/types.h>
29 #include <asm/byteorder.h>
30 #include <linux/list.h>
31 #include <linux/poll.h>
35 #define AF_BLUETOOTH 31
36 #define PF_BLUETOOTH AF_BLUETOOTH
39 /* Bluetooth versions */
40 #define BLUETOOTH_VER_1_1 1
41 #define BLUETOOTH_VER_1_2 2
42 #define BLUETOOTH_VER_2_0 3
44 /* Reserv for core and drivers use */
45 #define BT_SKB_RESERVE 8
47 #define BTPROTO_L2CAP 0
50 #define BTPROTO_RFCOMM 3
51 #define BTPROTO_BNEP 4
52 #define BTPROTO_CMTP 5
53 #define BTPROTO_HIDP 6
54 #define BTPROTO_AVDTP 7
66 #define BT_SECURITY_SDP 0
67 #define BT_SECURITY_LOW 1
68 #define BT_SECURITY_MEDIUM 2
69 #define BT_SECURITY_HIGH 3
71 #define BT_DEFER_SETUP 7
73 #define BT_FLUSHABLE 8
75 #define BT_FLUSHABLE_OFF 0
76 #define BT_FLUSHABLE_ON 1
82 #define BT_POWER_FORCE_ACTIVE_OFF 0
83 #define BT_POWER_FORCE_ACTIVE_ON 1
85 #define BT_CHANNEL_POLICY 10
87 /* BR/EDR only (default policy)
88 * AMP controllers cannot be used.
89 * Channel move requests from the remote device are denied.
90 * If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
92 #define BT_CHANNEL_POLICY_BREDR_ONLY 0
95 * Allow use of AMP controllers.
96 * If the L2CAP channel is currently on AMP, move it to BR/EDR.
97 * Channel move requests from the remote device are allowed.
99 #define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
102 * Allow use of AMP controllers
103 * If the L2CAP channel is currently on BR/EDR and AMP controller
104 * resources are available, initiate a channel move to AMP.
105 * Channel move requests from the remote device are allowed.
106 * If the L2CAP socket has not been connected yet, try to create
107 * and configure the channel directly on an AMP controller rather
110 #define BT_CHANNEL_POLICY_AMP_PREFERRED 2
113 int bt_info(const char *fmt, ...);
115 int bt_err(const char *fmt, ...);
117 #define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
118 #define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
119 #define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
121 /* Connection and socket states */
123 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
134 /* If unused will be removed by compiler */
135 static inline const char *state_to_string(int state)
139 return "BT_CONNECTED";
149 return "BT_CONNECT2";
158 return "invalid state";
166 #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
167 #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
169 /* Copy, swap, convert BD Address */
170 static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
172 return memcmp(ba1, ba2, sizeof(bdaddr_t));
174 static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
176 memcpy(dst, src, sizeof(bdaddr_t));
179 void baswap(bdaddr_t *dst, bdaddr_t *src);
180 char *batostr(bdaddr_t *ba);
181 bdaddr_t *strtoba(char *str);
183 /* Common socket structures and functions */
185 #define bt_sk(__sk) ((struct bt_sock *) __sk)
191 struct list_head accept_q;
197 struct bt_sock_list {
198 struct hlist_head head;
202 int bt_sock_register(int proto, const struct net_proto_family *ops);
203 int bt_sock_unregister(int proto);
204 void bt_sock_link(struct bt_sock_list *l, struct sock *s);
205 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
206 int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
207 struct msghdr *msg, size_t len, int flags);
208 int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
209 struct msghdr *msg, size_t len, int flags);
210 uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
211 int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
212 int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
214 void bt_accept_enqueue(struct sock *parent, struct sock *sk);
215 void bt_accept_unlink(struct sock *sk);
216 struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
228 #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
230 static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
234 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
235 skb_reserve(skb, BT_SKB_RESERVE);
236 bt_cb(skb)->incoming = 0;
241 static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
242 unsigned long len, int nb, int *err)
247 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
248 skb_reserve(skb, BT_SKB_RESERVE);
249 bt_cb(skb)->incoming = 0;
256 *err = sock_error(sk);
260 if (sk->sk_shutdown) {
272 int bt_to_errno(__u16 code);
274 extern int hci_sock_init(void);
275 extern void hci_sock_cleanup(void);
277 extern int bt_sysfs_init(void);
278 extern void bt_sysfs_cleanup(void);
280 extern struct dentry *bt_debugfs;
282 int l2cap_init(void);
283 void l2cap_exit(void);
288 void bt_sock_reclassify_lock(struct sock *sk, int proto);
290 #endif /* __BLUETOOTH_H */