175 lines
4.7 KiB
C
175 lines
4.7 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (C) 2000-2001 Qualcomm Incorporated
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Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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#ifndef __BLUETOOTH_H
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#define __BLUETOOTH_H
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#include <asm/types.h>
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#include <asm/byteorder.h>
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#include <linux/list.h>
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#include <linux/poll.h>
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#include <net/sock.h>
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#ifndef AF_BLUETOOTH
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#define AF_BLUETOOTH 31
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#define PF_BLUETOOTH AF_BLUETOOTH
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#endif
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/* Reserv for core and drivers use */
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#define BT_SKB_RESERVE 8
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#define BTPROTO_L2CAP 0
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#define BTPROTO_HCI 1
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#define BTPROTO_SCO 2
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#define BTPROTO_RFCOMM 3
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#define BTPROTO_BNEP 4
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#define BTPROTO_CMTP 5
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#define BTPROTO_HIDP 6
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#define BTPROTO_AVDTP 7
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#define SOL_HCI 0
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#define SOL_L2CAP 6
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#define SOL_SCO 17
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#define SOL_RFCOMM 18
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#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
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#define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __FUNCTION__ , ## arg)
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#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __FUNCTION__ , ## arg)
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extern struct proc_dir_entry *proc_bt;
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/* Connection and socket states */
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enum {
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BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
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BT_OPEN,
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BT_BOUND,
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BT_LISTEN,
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BT_CONNECT,
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BT_CONNECT2,
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BT_CONFIG,
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BT_DISCONN,
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BT_CLOSED
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};
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/* Endianness conversions */
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#define htobs(a) __cpu_to_le16(a)
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#define htobl(a) __cpu_to_le32(a)
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#define btohs(a) __le16_to_cpu(a)
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#define btohl(a) __le32_to_cpu(a)
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/* BD Address */
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typedef struct {
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__u8 b[6];
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} __attribute__((packed)) bdaddr_t;
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#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
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#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
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/* Copy, swap, convert BD Address */
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static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
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{
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return memcmp(ba1, ba2, sizeof(bdaddr_t));
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}
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static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
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{
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memcpy(dst, src, sizeof(bdaddr_t));
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}
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void baswap(bdaddr_t *dst, bdaddr_t *src);
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char *batostr(bdaddr_t *ba);
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bdaddr_t *strtoba(char *str);
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/* Common socket structures and functions */
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#define bt_sk(__sk) ((struct bt_sock *) __sk)
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struct bt_sock {
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struct sock sk;
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bdaddr_t src;
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bdaddr_t dst;
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struct list_head accept_q;
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struct sock *parent;
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};
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struct bt_sock_list {
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struct hlist_head head;
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rwlock_t lock;
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};
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int bt_sock_register(int proto, struct net_proto_family *ops);
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int bt_sock_unregister(int proto);
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void bt_sock_link(struct bt_sock_list *l, struct sock *s);
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void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
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int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags);
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uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
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int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
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void bt_accept_enqueue(struct sock *parent, struct sock *sk);
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void bt_accept_unlink(struct sock *sk);
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struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
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/* Skb helpers */
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struct bt_skb_cb {
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__u8 pkt_type;
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__u8 incoming;
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};
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#define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb))
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static inline struct sk_buff *bt_skb_alloc(unsigned int len, unsigned int __nocast how)
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{
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struct sk_buff *skb;
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if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
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skb_reserve(skb, BT_SKB_RESERVE);
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bt_cb(skb)->incoming = 0;
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}
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return skb;
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}
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static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len,
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int nb, int *err)
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{
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struct sk_buff *skb;
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if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
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skb_reserve(skb, BT_SKB_RESERVE);
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bt_cb(skb)->incoming = 0;
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}
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return skb;
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}
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static inline int skb_frags_no(struct sk_buff *skb)
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{
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register struct sk_buff *frag = skb_shinfo(skb)->frag_list;
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register int n = 1;
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for (; frag; frag=frag->next, n++);
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return n;
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}
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int bt_err(__u16 code);
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#endif /* __BLUETOOTH_H */
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