net/bluetooth/lib.c

   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 <linux/errno.h>
  35
  36 #include <net/bluetooth/bluetooth.h>
  37
  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
  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 */
  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
 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
 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);