root/fs/fat/tables.c

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   1 /*
   2  * linux/fs/fat/tables.c
   3  *
   4  * ASCII / Unicode translation tables for VFAT filename handling.
   5  * By Gordon Chaffee.
   6  *
   7  * Note: This file is used by all fat-based filesystems.
   8  */
   9 
  10 #include <linux/kernel.h>
  11 #include <linux/string.h>
  12 
  13 #include "tables.h"
  14 
  15 unsigned char page00[256] = {
  16         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
  17         0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, /* 0x08-0x0F */
  18         0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
  19         0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, /* 0x18-0x1F */
  20         0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
  21         0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, /* 0x28-0x2F */
  22         0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
  23         0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, /* 0x38-0x3F */
  24         0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
  25         0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, /* 0x48-0x4F */
  26         0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
  27         0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, /* 0x58-0x5F */
  28         0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
  29         0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, /* 0x68-0x6F */
  30         0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
  31         0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, /* 0x78-0x7F */
  32 
  33         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  34         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8F */
  35         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  36         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x92, /* 0x98-0x9F */
  37         0xFF, 0xAD, 0xBD, 0x9C, 0xCF, 0xBE, 0xDD, 0xF5, /* 0xA0-0xA7 */
  38         0xF9, 0xB8, 0x00, 0xAE, 0xAA, 0xF0, 0x00, 0xEE, /* 0xA8-0xAF */
  39         0xF8, 0xF1, 0xFD, 0xFC, 0xEF, 0xE6, 0xF4, 0xFA, /* 0xB0-0xB7 */
  40         0xF7, 0xFB, 0x00, 0xAF, 0xAC, 0xAB, 0xF3, 0x00, /* 0xB8-0xBF */
  41         0xB7, 0xB5, 0xB6, 0xC7, 0x8E, 0x8F, 0x92, 0x80, /* 0xC0-0xC7 */
  42         0xD4, 0x90, 0xD2, 0xD3, 0xDE, 0xD6, 0xD7, 0xD8, /* 0xC8-0xCF */
  43         0x00, 0xA5, 0xE3, 0xE0, 0xE2, 0xE5, 0x99, 0x9E, /* 0xD0-0xD7 */
  44         0x9D, 0xEB, 0xE9, 0xEA, 0x9A, 0xED, 0xE8, 0xE1, /* 0xD8-0xDF */
  45         0xA1, 0xA0, 0x83, 0xC6, 0x84, 0x86, 0x91, 0x87, /* 0xE0-0xE7 */
  46         0x8A, 0x82, 0x88, 0x89, 0x8D, 0x00, 0x8C, 0x8B, /* 0xE8-0xEF */
  47         0xD0, 0xA4, 0x95, 0xA2, 0x93, 0xE4, 0x94, 0xF6, /* 0xF0-0xF7 */
  48         0x9B, 0x97, 0xA3, 0x96, 0x81, 0xEC, 0xE7, 0x98  /* 0xF8-0xFF */
  49 };
  50 
  51 
  52 unsigned char page25[256] = {
  53         0xC4, 0x00, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  54         0x00, 0x00, 0x00, 0x00, 0xDA, 0x00, 0x00, 0x00, /* 0x08-0x0F */
  55         0xBF, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  56         0xD9, 0x00, 0x00, 0x00, 0xC3, 0x00, 0x00, 0x00, /* 0x18-0x1F */
  57         0x00, 0x00, 0x00, 0x00, 0xB4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
  58         0x00, 0x00, 0x00, 0x00, 0xC2, 0x00, 0x00, 0x00, /* 0x28-0x2F */
  59         0x00, 0x00, 0x00, 0x00, 0xC1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
  60         0x00, 0x00, 0x00, 0x00, 0xC5, 0x00, 0x00, 0x00, /* 0x38-0x3F */
  61         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  62         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4F */
  63         0xCD, 0xBA, 0x00, 0x00, 0xC9, 0x00, 0x00, 0xBB, /* 0x50-0x57 */
  64         0x00, 0x00, 0xC8, 0x00, 0x00, 0xBC, 0x00, 0x00, /* 0x58-0x5F */
  65         0xCC, 0x00, 0x00, 0xB9, 0x00, 0x00, 0xCB, 0x00, /* 0x60-0x67 */
  66         0x00, 0xCA, 0x00, 0x00, 0xCE, 0x00, 0x00, 0x00, /* 0x68-0x6F */
  67         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  68         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7F */
  69 
  70         0xDF, 0x00, 0x00, 0x00, 0xDC, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  71         0xDB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8F */
  72         0x00, 0xB0, 0xB1, 0xB2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  73         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9F */
  74         0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA0-0xA7 */
  75         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xA8-0xAF */
  76         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB0-0xB7 */
  77         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xB8-0xBF */
  78         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC0-0xC7 */
  79         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xC8-0xCF */
  80         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD0-0xD7 */
  81         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xD8-0xDF */
  82         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE0-0xE7 */
  83         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xE8-0xEF */
  84         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xF0-0xF7 */
  85         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00  /* 0xF8-0xFF */
  86 };
  87 
  88 
  89 unsigned char *fat_uni2asc_pg[256] = {
  90         page00, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  91         NULL,   NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  92         NULL,   NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  93         NULL,   NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  94         NULL,   NULL, NULL, NULL, page25
  95 };
  96 
  97 /* Conversion from ASCII name characters to the shortname character
  98  * should probably just just use XXX
  99  */
 100 unsigned char fat_a2alias[256] = 
 101 {
 102         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
 103         0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, /* 0x08-0x0F */
 104         0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
 105         0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, /* 0x18-0x1F */
 106         0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
 107         0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, /* 0x28-0x2F */
 108         0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
 109         0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, /* 0x38-0x3F */
 110         0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
 111         0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, /* 0x48-0x4F */
 112         0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
 113         0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, /* 0x58-0x5F */
 114         0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
 115         0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, /* 0x68-0x6F */
 116         0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
 117         0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, /* 0x78-0x7F */
 118 
 119         0x80, 0x9A, 0x90, 0xB6, 0x8E, 0xB7, 0x8F, 0x80, /* 0x80-0x87 */
 120         0xD2, 0xD3, 0xD4, 0xD8, 0xD7, 0xDE, 0x8E, 0x8F, /* 0x88-0x8F */
 121         0x90, 0x92, 0x92, 0xE2, 0x99, 0xE3, 0xEA, 0xEB, /* 0x90-0x97 */
 122 /*_~1*/ 0x98, 0x99, 0x9A, 0x9D, 0x9C, 0x9D, 0x9E, 0x9F, /* 0x98-0x9F */
 123         0xB5, 0xD6, 0xE0, 0xE9, 0xA5, 0xA5, 0xA6, 0xA7, /* 0xA0-0xA7 */
 124         0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, /* 0xA8-0xAF */
 125         0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, /* 0xB0-0xB7 */
 126         0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, /* 0xB8-0xBF */
 127         0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, /* 0xC0-0xC7 */
 128         0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, /* 0xC8-0xCF */
 129         0xD1, 0xD1, 0xD2, 0xD3, 0xD4, 0x49, 0xD6, 0xD7, /* 0xD0-0xD7 */
 130         0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, /* 0xD8-0xDF */
 131         0xE0, 0xE1, 0xE2, 0xE3, 0x05, 0x05, 0xE6, 0xE8, /* 0xE0-0xE7 */
 132         0xE8, 0xE9, 0xEA, 0xEB, 0xED, 0xED, 0xEE, 0xEF, /* 0xE8-0xEF */
 133         0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, /* 0xF0-0xF7 */
 134         0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF  /* 0xF8-0xFF */
 135 };
 136 
 137 struct unicode_value fat_a2uni[256] = {
 138 /* 0x00 */
 139 {0x00, 0x00}, {0x01, 0x00}, {0x02, 0x00}, {0x03, 0x00},
 140 {0x04, 0x00}, {0x05, 0x00}, {0x06, 0x00}, {0x07, 0x00},
 141 {0x08, 0x00}, {0x09, 0x00}, {0x0A, 0x00}, {0x0B, 0x00},
 142 {0x0C, 0x00}, {0x0D, 0x00}, {0x0E, 0x00}, {0x0F, 0x00},
 143 /* 0x10 */
 144 {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00},
 145 {0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00},
 146 {0x18, 0x00}, {0x19, 0x00}, {0x1A, 0x00}, {0x1B, 0x00},
 147 {0x1C, 0x00}, {0x1D, 0x00}, {0x1E, 0x00}, {0x1F, 0x00},
 148 /* 0x20 */
 149 {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00},
 150 {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00},
 151 {0x28, 0x00}, {0x29, 0x00}, {0x2A, 0x00}, {0x2B, 0x00},
 152 {0x2C, 0x00}, {0x2D, 0x00}, {0x2E, 0x00}, {0x2F, 0x00},
 153 /* 0x30 */
 154 {0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00},
 155 {0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00},
 156 {0x38, 0x00}, {0x39, 0x00}, {0x3A, 0x00}, {0x3B, 0x00},
 157 {0x3C, 0x00}, {0x3D, 0x00}, {0x3E, 0x00}, {0x3F, 0x00},
 158 /* 0x40 */
 159 {0x40, 0x00}, {0x41, 0x00}, {0x42, 0x00}, {0x43, 0x00},
 160 {0x44, 0x00}, {0x45, 0x00}, {0x46, 0x00}, {0x47, 0x00},
 161 {0x48, 0x00}, {0x49, 0x00}, {0x4A, 0x00}, {0x4B, 0x00},
 162 {0x4C, 0x00}, {0x4D, 0x00}, {0x4E, 0x00}, {0x4F, 0x00},
 163 /* 0x50 */
 164 {0x50, 0x00}, {0x51, 0x00}, {0x52, 0x00}, {0x53, 0x00},
 165 {0x54, 0x00}, {0x55, 0x00}, {0x56, 0x00}, {0x57, 0x00},
 166 {0x58, 0x00}, {0x59, 0x00}, {0x5A, 0x00}, {0x5B, 0x00},
 167 {0x5C, 0x00}, {0x5D, 0x00}, {0x5E, 0x00}, {0x5F, 0x00},
 168 /* 0x60 */
 169 {0x60, 0x00}, {0x61, 0x00}, {0x62, 0x00}, {0x63, 0x00},
 170 {0x64, 0x00}, {0x65, 0x00}, {0x66, 0x00}, {0x67, 0x00},
 171 {0x68, 0x00}, {0x69, 0x00}, {0x6A, 0x00}, {0x6B, 0x00},
 172 {0x6C, 0x00}, {0x6D, 0x00}, {0x6E, 0x00}, {0x6F, 0x00},
 173 /* 0x70 */
 174 {0x70, 0x00}, {0x71, 0x00}, {0x72, 0x00}, {0x73, 0x00},
 175 {0x74, 0x00}, {0x75, 0x00}, {0x76, 0x00}, {0x77, 0x00},
 176 {0x78, 0x00}, {0x79, 0x00}, {0x7A, 0x00}, {0x7B, 0x00},
 177 {0x7C, 0x00}, {0x7D, 0x00}, {0x7E, 0x00}, {0x7F, 0x00},
 178 /* 0x80 */
 179 {0xC7, 0x00}, {0xFC, 0x00}, {0xE9, 0x00}, {0xE2, 0x00},
 180 {0xE4, 0x00}, {0xE0, 0x00}, {0xE5, 0x00}, {0xE7, 0x00},
 181 {0xEA, 0x00}, {0xEB, 0x00}, {0xE8, 0x00}, {0xEF, 0x00},
 182 {0xEE, 0x00}, {0xEC, 0x00}, {0xC4, 0x00}, {0xC5, 0x00},
 183 /* 0x90 */
 184 {0xC9, 0x00}, {0xE6, 0x00}, {0xC6, 0x00}, {0xF4, 0x00},
 185 {0xF6, 0x00}, {0xF2, 0x00}, {0xFB, 0x00}, {0xF9, 0x00},
 186 {0xFF, 0x00}, {0xD6, 0x00}, {0xDC, 0x00}, {0xF8, 0x00},
 187 {0xA3, 0x00}, {0xD8, 0x00}, {0xD7, 0x00}, {0x92, 0x00},
 188 /* 0xA0 */
 189 {0xE1, 0x00}, {0xE0, 0x00}, {0xF3, 0x00}, {0xFA, 0x00},
 190 {0xF1, 0x00}, {0xD1, 0x00}, {0xAA, 0x00}, {0xBA, 0x00},
 191 {0xBF, 0x00}, {0xAE, 0x00}, {0xAC, 0x00}, {0xBD, 0x00},
 192 {0xBC, 0x00}, {0xA1, 0x00}, {0xAB, 0x00}, {0xBB, 0x00},
 193 /* 0xB0 */
 194 {0x91, 0x25}, {0x92, 0x25}, {0x93, 0x25}, {0x02, 0x25},
 195 {0x24, 0x25}, {0xC1, 0x00}, {0xC2, 0x00}, {0xC0, 0x00},
 196 {0xA9, 0x00}, {0x63, 0x25}, {0x51, 0x25}, {0x57, 0x25},
 197 {0x5D, 0x25}, {0xA2, 0x00}, {0xA5, 0x00}, {0x10, 0x25},
 198 /* 0xC0 */
 199 {0x14, 0x25}, {0x34, 0x25}, {0x2C, 0x25}, {0x1C, 0x25},
 200 {0x00, 0x25}, {0x3C, 0x25}, {0xE3, 0x00}, {0xC3, 0x00},
 201 {0x5A, 0x25}, {0x54, 0x25}, {0x69, 0x25}, {0x66, 0x25},
 202 {0x60, 0x25}, {0x50, 0x25}, {0x6C, 0x25}, {0xA4, 0x00},
 203 /* 0xD0 */
 204 {0xF0, 0x00}, {0xD0, 0x00}, {0xCA, 0x00}, {0xCB, 0x00},
 205 {0xC8, 0x00}, {0x31, 0x01}, {0xCD, 0x00}, {0xCE, 0x00},
 206 {0xCF, 0x00}, {0x18, 0x25}, {0x0C, 0x25}, {0x88, 0x25},
 207 {0x84, 0x25}, {0xA6, 0x00}, {0xCC, 0x00}, {0x80, 0x25},
 208 /* 0xE0 */
 209 {0xD3, 0x00}, {0xDF, 0x00}, {0xD4, 0x00}, {0xD2, 0x00},
 210 {0xF5, 0x00}, {0xD5, 0x00}, {0xB5, 0x00}, {0xFE, 0x00},
 211 {0xDE, 0x00}, {0xDA, 0x00}, {0xDB, 0x00}, {0xD9, 0x00},
 212 {0xFD, 0x00}, {0xDD, 0x00}, {0xAF, 0x00}, {0xB4, 0x00},
 213 /* 0xF0 */
 214 {0xAD, 0x00}, {0xB1, 0x00}, {0x17, 0x20}, {0xBE, 0x00},
 215 {0xB6, 0x00}, {0xA7, 0x00}, {0xF7, 0x00}, {0xB8, 0x00},
 216 {0xB0, 0x00}, {0xA8, 0x00}, {0xB7, 0x00}, {0xB9, 0x00},
 217 {0xB3, 0x00}, {0xB2, 0x00}, {0xA0, 0x25}, {0xA0, 0x00}};
 218 
 219 /*
 220  * Overrides for Emacs so that we follow Linus's tabbing style.
 221  * Emacs will notice this stuff at the end of the file and automatically
 222  * adjust the settings for this buffer only.  This must remain at the end
 223  * of the file.
 224  * ---------------------------------------------------------------------------
 225  * Local variables:
 226  * c-indent-level: 8
 227  * c-brace-imaginary-offset: 0
 228  * c-brace-offset: -8
 229  * c-argdecl-indent: 8
 230  * c-label-offset: -8
 231  * c-continued-statement-offset: 8
 232  * c-continued-brace-offset: 0
 233  * End:
 234  */
/* [previous][next][first][last][top][bottom][index][help] */