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 /* Bluetooth kernel library. */
26 
27 #define pr_fmt(fmt) "Bluetooth: " fmt
28 
29 #include <linux/module.h>
30 
31 #include <linux/kernel.h>
32 #include <linux/stddef.h>
33 #include <linux/string.h>
34 #include <asm/errno.h>
35 
36 #include <net/bluetooth/bluetooth.h>
37 
baswap(bdaddr_t * dst,bdaddr_t * src)38 void baswap(bdaddr_t *dst, bdaddr_t *src)
39 {
40 	unsigned char *d = (unsigned char *) dst;
41 	unsigned char *s = (unsigned char *) src;
42 	unsigned int i;
43 
44 	for (i = 0; i < 6; i++)
45 		d[i] = s[5 - i];
46 }
47 EXPORT_SYMBOL(baswap);
48 
batostr(bdaddr_t * ba)49 char *batostr(bdaddr_t *ba)
50 {
51 	static char str[2][18];
52 	static int i = 1;
53 
54 	i ^= 1;
55 	sprintf(str[i], "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
56 		ba->b[5], ba->b[4], ba->b[3],
57 		ba->b[2], ba->b[1], ba->b[0]);
58 
59 	return str[i];
60 }
61 EXPORT_SYMBOL(batostr);
62 
63 /* Bluetooth error codes to Unix errno mapping */
bt_to_errno(__u16 code)64 int bt_to_errno(__u16 code)
65 {
66 	switch (code) {
67 	case 0:
68 		return 0;
69 
70 	case 0x01:
71 		return EBADRQC;
72 
73 	case 0x02:
74 		return ENOTCONN;
75 
76 	case 0x03:
77 		return EIO;
78 
79 	case 0x04:
80 		return EHOSTDOWN;
81 
82 	case 0x05:
83 		return EACCES;
84 
85 	case 0x06:
86 		return EBADE;
87 
88 	case 0x07:
89 		return ENOMEM;
90 
91 	case 0x08:
92 		return ETIMEDOUT;
93 
94 	case 0x09:
95 		return EMLINK;
96 
97 	case 0x0a:
98 		return EMLINK;
99 
100 	case 0x0b:
101 		return EALREADY;
102 
103 	case 0x0c:
104 		return EBUSY;
105 
106 	case 0x0d:
107 	case 0x0e:
108 	case 0x0f:
109 		return ECONNREFUSED;
110 
111 	case 0x10:
112 		return ETIMEDOUT;
113 
114 	case 0x11:
115 	case 0x27:
116 	case 0x29:
117 	case 0x20:
118 		return EOPNOTSUPP;
119 
120 	case 0x12:
121 		return EINVAL;
122 
123 	case 0x13:
124 	case 0x14:
125 	case 0x15:
126 		return ECONNRESET;
127 
128 	case 0x16:
129 		return ECONNABORTED;
130 
131 	case 0x17:
132 		return ELOOP;
133 
134 	case 0x18:
135 		return EACCES;
136 
137 	case 0x1a:
138 		return EPROTONOSUPPORT;
139 
140 	case 0x1b:
141 		return ECONNREFUSED;
142 
143 	case 0x19:
144 	case 0x1e:
145 	case 0x23:
146 	case 0x24:
147 	case 0x25:
148 		return EPROTO;
149 
150 	default:
151 		return ENOSYS;
152 	}
153 }
154 EXPORT_SYMBOL(bt_to_errno);
155 
bt_info(const char * format,...)156 int bt_info(const char *format, ...)
157 {
158 	struct va_format vaf;
159 	va_list args;
160 	int r;
161 
162 	va_start(args, format);
163 
164 	vaf.fmt = format;
165 	vaf.va = &args;
166 
167 	r = pr_info("%pV", &vaf);
168 
169 	va_end(args);
170 
171 	return r;
172 }
173 EXPORT_SYMBOL(bt_info);
174 
bt_err(const char * format,...)175 int bt_err(const char *format, ...)
176 {
177 	struct va_format vaf;
178 	va_list args;
179 	int r;
180 
181 	va_start(args, format);
182 
183 	vaf.fmt = format;
184 	vaf.va = &args;
185 
186 	r = pr_err("%pV", &vaf);
187 
188 	va_end(args);
189 
190 	return r;
191 }
192 EXPORT_SYMBOL(bt_err);
193