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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
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;
10
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.
19
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.
23*/
24
25#ifndef __BLUETOOTH_H
26#define __BLUETOOTH_H
27
28#include <asm/types.h>
29#include <asm/byteorder.h>
30#include <linux/list.h>
31#include <linux/poll.h>
32#include <net/sock.h>
33
34#ifndef AF_BLUETOOTH
35#define AF_BLUETOOTH 31
36#define PF_BLUETOOTH AF_BLUETOOTH
37#endif
38
39/* Reserv for core and drivers use */
40#define BT_SKB_RESERVE 8
41
42#define BTPROTO_L2CAP 0
43#define BTPROTO_HCI 1
44#define BTPROTO_SCO 2
45#define BTPROTO_RFCOMM 3
46#define BTPROTO_BNEP 4
47#define BTPROTO_CMTP 5
48#define BTPROTO_HIDP 6
49#define BTPROTO_AVDTP 7
50
51#define SOL_HCI 0
52#define SOL_L2CAP 6
53#define SOL_SCO 17
54#define SOL_RFCOMM 18
55
Marcel Holtmann8c1b2352009-01-15 21:58:04 +010056#define BT_SECURITY 4
57struct bt_security {
58 __u8 level;
59};
60#define BT_SECURITY_SDP 0
61#define BT_SECURITY_LOW 1
62#define BT_SECURITY_MEDIUM 2
63#define BT_SECURITY_HIGH 3
64
Marcel Holtmannc4f912e2009-01-15 21:52:16 +010065#define BT_DEFER_SETUP 7
66
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
Marcel Holtmanna418b892008-11-30 12:17:28 +010068#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
69#define BT_DBG(fmt, arg...) pr_debug("%s: " fmt "\n" , __func__ , ## arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
Linus Torvalds1da177e2005-04-16 15:20:36 -070071/* Connection and socket states */
72enum {
73 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
74 BT_OPEN,
75 BT_BOUND,
76 BT_LISTEN,
77 BT_CONNECT,
78 BT_CONNECT2,
79 BT_CONFIG,
80 BT_DISCONN,
81 BT_CLOSED
82};
83
Linus Torvalds1da177e2005-04-16 15:20:36 -070084/* BD Address */
85typedef struct {
86 __u8 b[6];
87} __attribute__((packed)) bdaddr_t;
88
89#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
90#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
91
92/* Copy, swap, convert BD Address */
93static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
94{
95 return memcmp(ba1, ba2, sizeof(bdaddr_t));
96}
97static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
98{
99 memcpy(dst, src, sizeof(bdaddr_t));
100}
101
102void baswap(bdaddr_t *dst, bdaddr_t *src);
103char *batostr(bdaddr_t *ba);
104bdaddr_t *strtoba(char *str);
105
106/* Common socket structures and functions */
107
108#define bt_sk(__sk) ((struct bt_sock *) __sk)
109
110struct bt_sock {
111 struct sock sk;
112 bdaddr_t src;
113 bdaddr_t dst;
114 struct list_head accept_q;
115 struct sock *parent;
Marcel Holtmannc4f912e2009-01-15 21:52:16 +0100116 u32 defer_setup;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117};
118
119struct bt_sock_list {
120 struct hlist_head head;
121 rwlock_t lock;
122};
123
Stephen Hemmingerec1b4cf2009-10-05 05:58:39 +0000124int bt_sock_register(int proto, const struct net_proto_family *ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125int bt_sock_unregister(int proto);
126void bt_sock_link(struct bt_sock_list *l, struct sock *s);
127void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
128int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags);
129uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
Marcel Holtmann3241ad82008-07-14 20:13:50 +0200130int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
132
133void bt_accept_enqueue(struct sock *parent, struct sock *sk);
134void bt_accept_unlink(struct sock *sk);
135struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
136
137/* Skb helpers */
138struct bt_skb_cb {
Marcel Holtmann0d48d932005-08-09 20:30:28 -0700139 __u8 pkt_type;
140 __u8 incoming;
Gustavo F. Padovan1c2acff2009-08-20 22:25:57 -0300141 __u8 tx_seq;
Gustavo F. Padovane90bac02009-08-20 22:26:00 -0300142 __u8 retries;
Gustavo F. Padovan8f171542009-08-20 22:26:03 -0300143 __u8 sar;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144};
Gustavo F. Padovan1c2acff2009-08-20 22:25:57 -0300145#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146
Al Virodd0fc662005-10-07 07:46:04 +0100147static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148{
149 struct sk_buff *skb;
150
151 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
152 skb_reserve(skb, BT_SKB_RESERVE);
153 bt_cb(skb)->incoming = 0;
154 }
155 return skb;
156}
157
158static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len,
159 int nb, int *err)
160{
161 struct sk_buff *skb;
162
163 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
164 skb_reserve(skb, BT_SKB_RESERVE);
165 bt_cb(skb)->incoming = 0;
166 }
167
168 return skb;
169}
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171int bt_err(__u16 code);
172
Marcel Holtmann65164552005-10-28 19:20:48 +0200173extern int hci_sock_init(void);
Tobias Klauser04005dd2008-03-05 18:47:03 -0800174extern void hci_sock_cleanup(void);
Marcel Holtmann65164552005-10-28 19:20:48 +0200175
176extern int bt_sysfs_init(void);
177extern void bt_sysfs_cleanup(void);
178
Marcel Holtmannaef7d972010-03-21 05:27:45 +0100179extern struct dentry *bt_debugfs;
Marcel Holtmannbe9d1222005-11-08 09:57:38 -0800180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181#endif /* __BLUETOOTH_H */