1 /* 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 56 #define BT_SECURITY 4 57 struct 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 65 #define BT_DEFER_SETUP 7 66 67 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg) 68 #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) 70 71 /* Connection and socket states */ 72 enum { 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 84 /* Endianness conversions */ 85 #define htobs(a) __cpu_to_le16(a) 86 #define htobl(a) __cpu_to_le32(a) 87 #define btohs(a) __le16_to_cpu(a) 88 #define btohl(a) __le32_to_cpu(a) 89 90 /* BD Address */ 91 typedef struct { 92 __u8 b[6]; 93 } __attribute__((packed)) bdaddr_t; 94 95 #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}}) 96 #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}}) 97 98 /* Copy, swap, convert BD Address */ 99 static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2) 100 { 101 return memcmp(ba1, ba2, sizeof(bdaddr_t)); 102 } 103 static inline void bacpy(bdaddr_t *dst, bdaddr_t *src) 104 { 105 memcpy(dst, src, sizeof(bdaddr_t)); 106 } 107 108 void baswap(bdaddr_t *dst, bdaddr_t *src); 109 char *batostr(bdaddr_t *ba); 110 bdaddr_t *strtoba(char *str); 111 112 /* Common socket structures and functions */ 113 114 #define bt_sk(__sk) ((struct bt_sock *) __sk) 115 116 struct bt_sock { 117 struct sock sk; 118 bdaddr_t src; 119 bdaddr_t dst; 120 struct list_head accept_q; 121 struct sock *parent; 122 u32 defer_setup; 123 }; 124 125 struct bt_sock_list { 126 struct hlist_head head; 127 rwlock_t lock; 128 }; 129 130 int bt_sock_register(int proto, struct net_proto_family *ops); 131 int bt_sock_unregister(int proto); 132 void bt_sock_link(struct bt_sock_list *l, struct sock *s); 133 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s); 134 int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags); 135 uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait); 136 int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); 137 int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo); 138 139 void bt_accept_enqueue(struct sock *parent, struct sock *sk); 140 void bt_accept_unlink(struct sock *sk); 141 struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock); 142 143 /* Skb helpers */ 144 struct bt_skb_cb { 145 __u8 pkt_type; 146 __u8 incoming; 147 }; 148 #define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb)) 149 150 static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how) 151 { 152 struct sk_buff *skb; 153 154 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) { 155 skb_reserve(skb, BT_SKB_RESERVE); 156 bt_cb(skb)->incoming = 0; 157 } 158 return skb; 159 } 160 161 static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len, 162 int nb, int *err) 163 { 164 struct sk_buff *skb; 165 166 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) { 167 skb_reserve(skb, BT_SKB_RESERVE); 168 bt_cb(skb)->incoming = 0; 169 } 170 171 return skb; 172 } 173 174 static inline int skb_frags_no(struct sk_buff *skb) 175 { 176 register struct sk_buff *frag = skb_shinfo(skb)->frag_list; 177 register int n = 1; 178 179 for (; frag; frag=frag->next, n++); 180 return n; 181 } 182 183 int bt_err(__u16 code); 184 185 extern int hci_sock_init(void); 186 extern void hci_sock_cleanup(void); 187 188 extern int bt_sysfs_init(void); 189 extern void bt_sysfs_cleanup(void); 190 191 extern struct class *bt_class; 192 193 #endif /* __BLUETOOTH_H */ 194