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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 2889 $ |
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9 | |||
2889 | turbanoff | 10 | ERROR_SUCCESS = 0 |
11 | ERROR_DISK_BASE = 1 |
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12 | ERROR_UNSUPPORTED_FS = 2 |
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13 | ERROR_UNKNOWN_FS = 3 |
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14 | ERROR_PARTITION = 4 |
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15 | ERROR_FILE_NOT_FOUND = 5 |
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16 | ERROR_END_OF_FILE = 6 |
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17 | ERROR_MEMORY_POINTER = 7 |
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18 | ERROR_DISK_FULL = 8 |
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19 | ERROR_FAT_TABLE = 9 ;deprecated |
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20 | ERROR_FS_FAIL = 9 |
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21 | ERROR_ACCESS_DENIED = 10 |
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22 | ERROR_DEVICE = 11 |
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2288 | clevermous | 23 | |
24 | image_of_eax EQU esp+32 |
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25 | image_of_ebx EQU esp+20 |
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26 | |||
27 | ; System function 70 - files with long names (LFN) |
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28 | ; diamond, 2006 |
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29 | |||
30 | iglobal |
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31 | ; in this table names must be in lowercase |
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32 | rootdirs: |
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33 | db 2,'rd' |
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34 | dd fs_OnRamdisk |
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35 | dd fs_NextRamdisk |
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36 | db 7,'ramdisk' |
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37 | dd fs_OnRamdisk |
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38 | dd fs_NextRamdisk |
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39 | db 2,'fd' |
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40 | dd fs_OnFloppy |
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41 | dd fs_NextFloppy |
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42 | db 10,'floppydisk' |
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43 | dd fs_OnFloppy |
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44 | dd fs_NextFloppy |
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45 | db 3,'hd0' |
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46 | dd fs_OnHd0 |
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47 | dd fs_NextHd0 |
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48 | db 3,'hd1' |
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49 | dd fs_OnHd1 |
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50 | dd fs_NextHd1 |
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51 | db 3,'hd2' |
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52 | dd fs_OnHd2 |
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53 | dd fs_NextHd2 |
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54 | db 3,'hd3' |
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55 | dd fs_OnHd3 |
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56 | dd fs_NextHd3 |
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57 | ;********************************************** |
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58 | db 3,'cd0' |
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59 | dd fs_OnCd0 |
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60 | dd fs_NextCd |
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61 | db 3,'cd1' |
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62 | dd fs_OnCd1 |
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63 | dd fs_NextCd |
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64 | db 3,'cd2' |
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65 | dd fs_OnCd2 |
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66 | dd fs_NextCd |
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67 | db 3,'cd3' |
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68 | dd fs_OnCd3 |
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69 | dd fs_NextCd |
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70 | ;*********************************************** |
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71 | db 0 |
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72 | |||
73 | |||
74 | virtual_root_query: |
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75 | dd fs_HasRamdisk |
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76 | db 'rd',0 |
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77 | dd fs_HasFloppy |
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78 | db 'fd',0 |
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79 | dd fs_HasHd0 |
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80 | db 'hd0',0 |
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81 | dd fs_HasHd1 |
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82 | db 'hd1',0 |
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83 | dd fs_HasHd2 |
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84 | db 'hd2',0 |
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85 | dd fs_HasHd3 |
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86 | db 'hd3',0 |
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87 | ;********************************************** |
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88 | dd fs_HasCd0 |
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89 | db 'cd0',0 |
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90 | dd fs_HasCd1 |
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91 | db 'cd1',0 |
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92 | dd fs_HasCd2 |
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93 | db 'cd2',0 |
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94 | dd fs_HasCd3 |
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95 | db 'cd3',0 |
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96 | ;********************************************** |
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97 | dd 0 |
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98 | |||
99 | fs_additional_handlers: |
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100 | dd biosdisk_handler, biosdisk_enum_root |
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101 | dd dyndisk_handler, dyndisk_enum_root |
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102 | ; add new handlers here |
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103 | dd 0 |
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104 | |||
105 | endg |
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106 | file_system_lfn: |
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107 | ; in: ebx->fileinfo block |
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108 | ; operation codes: |
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109 | ; 0 : read file |
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110 | ; 1 : read folder |
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111 | ; 2 : create/rewrite file |
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112 | ; 3 : write/append to file |
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113 | ; 4 : set end of file |
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114 | ; 5 : get file/directory attributes structure |
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115 | ; 6 : set file/directory attributes structure |
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116 | ; 7 : start application |
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117 | ; 8 : delete file |
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118 | ; 9 : create directory |
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119 | |||
120 | ; parse file name |
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121 | lea esi, [ebx+20] |
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122 | lodsb |
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123 | test al, al |
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124 | jnz @f |
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125 | mov esi, [esi] |
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126 | lodsb |
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127 | @@: |
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128 | cmp al, '/' |
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129 | jz .notcurdir |
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130 | dec esi |
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131 | mov ebp, esi |
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132 | test al, al |
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133 | jnz @f |
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134 | xor ebp, ebp |
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135 | @@: |
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136 | mov esi, [current_slot] |
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137 | mov esi, [esi+APPDATA.cur_dir] |
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138 | jmp .parse_normal |
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139 | .notcurdir: |
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140 | cmp byte [esi], 0 |
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141 | jz .rootdir |
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142 | call process_replace_file_name |
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143 | .parse_normal: |
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144 | cmp dword [ebx], 7 |
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145 | jne @F |
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146 | mov edx, [ebx+4] |
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147 | mov ebx, [ebx+8] |
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148 | call fs_execute; esi+ebp, ebx, edx |
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149 | mov [image_of_eax], eax |
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150 | ret |
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151 | @@: |
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152 | mov edi, rootdirs-8 |
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153 | xor ecx, ecx |
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154 | push esi |
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155 | .scan1: |
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156 | pop esi |
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157 | add edi, ecx |
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158 | scasd |
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159 | scasd |
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160 | mov cl, byte [edi] |
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161 | test cl, cl |
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162 | jz .notfound_try |
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163 | inc edi |
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164 | push esi |
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165 | @@: |
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166 | lodsb |
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167 | or al, 20h |
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168 | scasb |
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169 | loopz @b |
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170 | jnz .scan1 |
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171 | lodsb |
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172 | cmp al, '/' |
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173 | jz .found1 |
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174 | test al, al |
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175 | jnz .scan1 |
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176 | pop eax |
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177 | ; directory /xxx |
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178 | .maindir: |
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179 | mov esi, [edi+4] |
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180 | .maindir_noesi: |
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181 | cmp dword [ebx], 1 |
||
182 | jnz .access_denied |
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183 | xor eax, eax |
||
184 | mov ebp, [ebx+12] ;количество блоков для считывания |
||
185 | mov edx, [ebx+16] ;куда записывать рузельтат |
||
186 | ; add edx, std_application_base_address |
||
187 | push dword [ebx+4] ; first block |
||
188 | mov ebx, [ebx+8] ; flags |
||
189 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
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190 | mov edi, edx |
||
191 | push ecx |
||
192 | mov ecx, 32/4 |
||
193 | rep stosd |
||
194 | pop ecx |
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195 | mov byte [edx], 1 ; version |
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196 | .maindir_loop: |
||
197 | call esi |
||
198 | jc .maindir_done |
||
199 | inc dword [edx+8] |
||
200 | dec dword [esp] |
||
201 | jns .maindir_loop |
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202 | dec ebp |
||
203 | js .maindir_loop |
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204 | inc dword [edx+4] |
||
205 | mov dword [edi], 0x10 ; attributes: folder |
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206 | mov dword [edi+4], 1 ; name type: UNICODE |
||
207 | push eax |
||
208 | xor eax, eax |
||
209 | add edi, 8 |
||
210 | push ecx |
||
211 | mov ecx, 40/4-2 |
||
212 | rep stosd |
||
213 | pop ecx |
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214 | pop eax |
||
215 | push eax edx |
||
216 | ; convert number in eax to decimal UNICODE string |
||
217 | push edi |
||
218 | push ecx |
||
219 | push -'0' |
||
220 | mov ecx, 10 |
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221 | @@: |
||
222 | xor edx, edx |
||
223 | div ecx |
||
224 | push edx |
||
225 | test eax, eax |
||
226 | jnz @b |
||
227 | @@: |
||
228 | pop eax |
||
229 | add al, '0' |
||
230 | stosb |
||
231 | test bl, 1 ; UNICODE name? |
||
232 | jz .ansi2 |
||
233 | mov byte [edi], 0 |
||
234 | inc edi |
||
235 | .ansi2: |
||
236 | test al, al |
||
237 | jnz @b |
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238 | mov byte [edi-1], 0 |
||
239 | pop ecx |
||
240 | pop edi |
||
241 | ; UNICODE name length is 520 bytes, ANSI - 264 |
||
242 | add edi, 520 |
||
243 | test bl, 1 |
||
244 | jnz @f |
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245 | sub edi, 520-264 |
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246 | @@: |
||
247 | pop edx eax |
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248 | jmp .maindir_loop |
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249 | .maindir_done: |
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250 | pop eax |
||
251 | mov ebx, [edx+4] |
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252 | xor eax, eax |
||
253 | dec ebp |
||
254 | js @f |
||
255 | mov al, ERROR_END_OF_FILE |
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256 | @@: |
||
257 | mov [image_of_eax], eax |
||
258 | mov [image_of_ebx], ebx |
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259 | ret |
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260 | ; directory / |
||
261 | .rootdir: |
||
262 | cmp dword [ebx], 1 ; read folder? |
||
263 | jz .readroot |
||
264 | .access_denied: |
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265 | mov dword [image_of_eax], 10 ; access denied |
||
266 | ret |
||
267 | |||
268 | .readroot: |
||
269 | ; virtual root folder - special handler |
||
270 | mov esi, virtual_root_query |
||
271 | mov ebp, [ebx+12] |
||
272 | mov edx, [ebx+16] |
||
273 | ; add edx, std_application_base_address |
||
274 | push dword [ebx+4] ; first block |
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275 | mov ebx, [ebx+8] ; flags |
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276 | xor eax, eax |
||
277 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
||
278 | mov edi, edx |
||
279 | mov ecx, 32/4 |
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280 | rep stosd |
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281 | mov byte [edx], 1 ; version |
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282 | .readroot_loop: |
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283 | cmp dword [esi], eax |
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284 | jz .readroot_done_static |
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285 | call dword [esi] |
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286 | add esi, 4 |
||
287 | test eax, eax |
||
288 | jnz @f |
||
289 | .readroot_next: |
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290 | or ecx, -1 |
||
291 | xchg esi, edi |
||
292 | repnz scasb |
||
293 | xchg esi, edi |
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294 | jmp .readroot_loop |
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295 | @@: |
||
296 | xor eax, eax |
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297 | inc dword [edx+8] |
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298 | dec dword [esp] |
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299 | jns .readroot_next |
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300 | dec ebp |
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301 | js .readroot_next |
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302 | inc dword [edx+4] |
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303 | mov dword [edi], 0x10 ; attributes: folder |
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304 | mov dword [edi+4], ebx ; name type: UNICODE |
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305 | add edi, 8 |
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306 | mov ecx, 40/4-2 |
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307 | rep stosd |
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308 | push edi |
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309 | @@: |
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310 | lodsb |
||
311 | stosb |
||
312 | test bl, 1 |
||
313 | jz .ansi |
||
314 | mov byte [edi], 0 |
||
315 | inc edi |
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316 | .ansi: |
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317 | test eax, eax |
||
318 | jnz @b |
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319 | pop edi |
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320 | add edi, 520 |
||
321 | test bl, 1 |
||
322 | jnz .readroot_loop |
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323 | sub edi, 520-264 |
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324 | jmp .readroot_loop |
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325 | .readroot_done_static: |
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326 | mov esi, fs_additional_handlers-8 |
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327 | sub esp, 16 |
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328 | .readroot_ah_loop: |
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329 | add esi, 8 |
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330 | cmp dword [esi], 0 |
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331 | jz .readroot_done |
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332 | xor eax, eax |
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333 | .readroot_ah_loop2: |
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334 | push edi |
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335 | lea edi, [esp+4] |
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336 | call dword [esi+4] |
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337 | pop edi |
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338 | test eax, eax |
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339 | jz .readroot_ah_loop |
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340 | inc dword [edx+8] |
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341 | dec dword [esp+16] |
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342 | jns .readroot_ah_loop2 |
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343 | dec ebp |
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344 | js .readroot_ah_loop2 |
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345 | push eax |
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346 | xor eax, eax |
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347 | inc dword [edx+4] |
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348 | mov dword [edi], 0x10 ; attributes: folder |
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349 | mov dword [edi+4], ebx |
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350 | add edi, 8 |
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351 | mov ecx, 40/4-2 |
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352 | rep stosd |
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353 | push esi edi |
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354 | lea esi, [esp+12] |
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355 | @@: |
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356 | lodsb |
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357 | stosb |
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358 | test bl, 1 |
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359 | jz .ansi3 |
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360 | mov byte [edi], 0 |
||
361 | inc edi |
||
362 | .ansi3: |
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363 | test al, al |
||
364 | jnz @b |
||
365 | pop edi esi eax |
||
366 | add edi, 520 |
||
367 | test bl, 1 |
||
368 | jnz .readroot_ah_loop2 |
||
369 | sub edi, 520-264 |
||
370 | jmp .readroot_ah_loop2 |
||
371 | .readroot_done: |
||
372 | add esp, 16 |
||
373 | pop eax |
||
374 | mov ebx, [edx+4] |
||
375 | xor eax, eax |
||
376 | dec ebp |
||
377 | js @f |
||
378 | mov al, ERROR_END_OF_FILE |
||
379 | @@: |
||
380 | mov [image_of_eax], eax |
||
381 | mov [image_of_ebx], ebx |
||
382 | ret |
||
383 | .notfound_try: |
||
384 | mov edi, fs_additional_handlers |
||
385 | @@: |
||
386 | cmp dword [edi], 0 |
||
387 | jz .notfound |
||
388 | call dword [edi] |
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389 | scasd |
||
390 | scasd |
||
391 | jmp @b |
||
392 | .notfound: |
||
393 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
||
394 | and dword [image_of_ebx], 0 |
||
395 | ret |
||
396 | |||
397 | .notfounda: |
||
398 | cmp edi, esp |
||
399 | jnz .notfound |
||
400 | call dword [edi+4] |
||
401 | add esp, 16 |
||
402 | jmp .notfound |
||
403 | |||
404 | .found1: |
||
405 | pop eax |
||
406 | cmp byte [esi], 0 |
||
407 | jz .maindir |
||
408 | .found2: |
||
409 | ; read partition number |
||
410 | xor ecx, ecx |
||
411 | xor eax, eax |
||
412 | @@: |
||
413 | lodsb |
||
414 | cmp al, '/' |
||
415 | jz .done1 |
||
416 | test al, al |
||
417 | jz .done1 |
||
418 | sub al, '0' |
||
419 | cmp al, 9 |
||
420 | ja .notfounda |
||
421 | lea ecx, [ecx*5] |
||
422 | lea ecx, [ecx*2+eax] |
||
423 | jmp @b |
||
424 | .done1: |
||
425 | jecxz .notfounda |
||
426 | test al, al |
||
427 | jnz @f |
||
428 | dec esi |
||
429 | @@: |
||
430 | cmp byte [esi], 0 |
||
431 | jnz @f |
||
432 | test ebp, ebp |
||
433 | jz @f |
||
434 | mov esi, ebp |
||
435 | xor ebp, ebp |
||
436 | @@: |
||
437 | ; now [edi] contains handler address, ecx - partition number, |
||
438 | ; esi points to ASCIIZ string - rest of name |
||
439 | jmp dword [edi] |
||
440 | |||
441 | ; handlers for devices |
||
442 | ; in: ecx = 0 => query virtual directory /xxx |
||
443 | ; in: ecx = partition number |
||
444 | ; esi -> relative (for device) name |
||
445 | ; ebx -> fileinfo |
||
446 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
||
447 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
||
448 | |||
449 | fs_OnRamdisk: |
||
450 | cmp ecx, 1 |
||
451 | jnz file_system_lfn.notfound |
||
452 | mov eax, [ebx] |
||
453 | cmp eax, fs_NumRamdiskServices |
||
454 | jae .not_impl |
||
455 | mov ecx, [ebx+12] |
||
456 | mov edx, [ebx+16] |
||
457 | ; add edx, std_application_base_address |
||
458 | add ebx, 4 |
||
459 | call dword [fs_RamdiskServices + eax*4] |
||
460 | mov [image_of_eax], eax |
||
461 | mov [image_of_ebx], ebx |
||
462 | ret |
||
463 | .not_impl: |
||
464 | mov dword [image_of_eax], 2 ; not implemented |
||
465 | ret |
||
466 | |||
467 | fs_NotImplemented: |
||
468 | mov eax, 2 |
||
469 | ret |
||
470 | |||
471 | fs_RamdiskServices: |
||
472 | dd fs_RamdiskRead |
||
473 | dd fs_RamdiskReadFolder |
||
474 | dd fs_RamdiskRewrite |
||
475 | dd fs_RamdiskWrite |
||
476 | dd fs_RamdiskSetFileEnd |
||
477 | dd fs_RamdiskGetFileInfo |
||
478 | dd fs_RamdiskSetFileInfo |
||
479 | dd 0 |
||
480 | dd fs_RamdiskDelete |
||
481 | dd fs_RamdiskCreateFolder |
||
482 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
||
483 | |||
484 | fs_OnFloppy: |
||
485 | cmp ecx, 2 |
||
486 | ja file_system_lfn.notfound |
||
487 | mov eax, [ebx] |
||
488 | cmp eax, fs_NumFloppyServices |
||
489 | jae fs_OnRamdisk.not_impl |
||
490 | call reserve_flp |
||
491 | mov [flp_number], cl |
||
492 | mov ecx, [ebx+12] |
||
493 | mov edx, [ebx+16] |
||
494 | ; add edx, std_application_base_address |
||
495 | add ebx, 4 |
||
496 | call dword [fs_FloppyServices + eax*4] |
||
497 | and [flp_status], 0 |
||
498 | mov [image_of_eax], eax |
||
499 | mov [image_of_ebx], ebx |
||
500 | ret |
||
501 | |||
502 | fs_FloppyServices: |
||
503 | dd fs_FloppyRead |
||
504 | dd fs_FloppyReadFolder |
||
505 | dd fs_FloppyRewrite |
||
506 | dd fs_FloppyWrite |
||
507 | dd fs_FloppySetFileEnd |
||
508 | dd fs_FloppyGetFileInfo |
||
509 | dd fs_FloppySetFileInfo |
||
510 | dd 0 |
||
511 | dd fs_FloppyDelete |
||
512 | dd fs_FloppyCreateFolder |
||
513 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
||
514 | |||
515 | fs_OnHd0: |
||
516 | call reserve_hd1 |
||
517 | mov [hdbase], 0x1F0 |
||
518 | mov [hdid], 0 |
||
519 | push 1 |
||
520 | jmp fs_OnHd |
||
521 | fs_OnHd1: |
||
522 | call reserve_hd1 |
||
523 | mov [hdbase], 0x1F0 |
||
524 | mov [hdid], 0x10 |
||
525 | push 2 |
||
526 | jmp fs_OnHd |
||
527 | fs_OnHd2: |
||
528 | call reserve_hd1 |
||
529 | mov [hdbase], 0x170 |
||
530 | mov [hdid], 0 |
||
531 | push 3 |
||
532 | jmp fs_OnHd |
||
533 | fs_OnHd3: |
||
534 | call reserve_hd1 |
||
535 | mov [hdbase], 0x170 |
||
536 | mov [hdid], 0x10 |
||
537 | push 4 |
||
538 | fs_OnHd: |
||
539 | call reserve_hd_channel |
||
540 | pop eax |
||
541 | mov [hdpos], eax |
||
542 | cmp ecx, 0x100 |
||
543 | jae fs_OnHdAndBd.nf |
||
544 | cmp cl, [DRIVE_DATA+1+eax] |
||
545 | fs_OnHdAndBd: |
||
546 | jbe @f |
||
547 | .nf: |
||
548 | call free_hd_channel |
||
549 | and [hd1_status], 0 |
||
550 | mov dword [image_of_eax], 5 ; not found |
||
551 | ret |
||
552 | @@: |
||
553 | mov [known_part], ecx ; mov [fat32part], ecx |
||
554 | push ebx esi |
||
555 | call choice_necessity_partition_1 |
||
556 | pop esi ebx |
||
557 | mov ecx, [ebx+12] |
||
558 | mov edx, [ebx+16] |
||
559 | ; add edx, std_application_base_address |
||
560 | mov eax, [ebx] |
||
561 | cmp eax, fs_NumHdServices |
||
562 | jae .not_impl |
||
563 | add ebx, 4 |
||
564 | call dword [fs_HdServices + eax*4] |
||
565 | call free_hd_channel |
||
566 | and [hd1_status], 0 |
||
567 | mov [image_of_eax], eax |
||
568 | mov [image_of_ebx], ebx |
||
569 | ret |
||
570 | .not_impl: |
||
571 | call free_hd_channel |
||
572 | and [hd1_status], 0 |
||
573 | mov dword [image_of_eax], 2 ; not implemented |
||
574 | ret |
||
575 | |||
576 | fs_HdServices: |
||
577 | dd fs_HdRead |
||
578 | dd fs_HdReadFolder |
||
579 | dd fs_HdRewrite |
||
580 | dd fs_HdWrite |
||
581 | dd fs_HdSetFileEnd |
||
582 | dd fs_HdGetFileInfo |
||
583 | dd fs_HdSetFileInfo |
||
584 | dd 0 |
||
585 | dd fs_HdDelete |
||
586 | dd fs_HdCreateFolder |
||
587 | fs_NumHdServices = ($ - fs_HdServices)/4 |
||
588 | |||
589 | ;******************************************************* |
||
590 | fs_OnCd0: |
||
591 | call reserve_cd |
||
592 | mov [ChannelNumber], 1 |
||
593 | mov [DiskNumber], 0 |
||
594 | push 6 |
||
595 | push 1 |
||
596 | jmp fs_OnCd |
||
597 | fs_OnCd1: |
||
598 | call reserve_cd |
||
599 | mov [ChannelNumber], 1 |
||
600 | mov [DiskNumber], 1 |
||
601 | push 4 |
||
602 | push 2 |
||
603 | jmp fs_OnCd |
||
604 | fs_OnCd2: |
||
605 | call reserve_cd |
||
606 | mov [ChannelNumber], 2 |
||
607 | mov [DiskNumber], 0 |
||
608 | push 2 |
||
609 | push 3 |
||
610 | jmp fs_OnCd |
||
611 | fs_OnCd3: |
||
612 | call reserve_cd |
||
613 | mov [ChannelNumber], 2 |
||
614 | mov [DiskNumber], 1 |
||
615 | push 0 |
||
616 | push 4 |
||
617 | fs_OnCd: |
||
618 | call reserve_cd_channel |
||
619 | pop eax |
||
620 | mov [cdpos], eax |
||
621 | pop eax |
||
622 | cmp ecx, 0x100 |
||
623 | jae .nf |
||
624 | push ecx ebx |
||
625 | mov cl, al |
||
626 | mov bl, [DRIVE_DATA+1] |
||
627 | shr bl, cl |
||
628 | test bl, 2 |
||
629 | pop ebx ecx |
||
630 | |||
631 | jnz @f |
||
632 | .nf: |
||
633 | call free_cd_channel |
||
634 | and [cd_status], 0 |
||
635 | mov dword [image_of_eax], 5 ; not found |
||
636 | ret |
||
637 | @@: |
||
638 | mov ecx, [ebx+12] |
||
639 | mov edx, [ebx+16] |
||
640 | ; add edx, std_application_base_address |
||
641 | mov eax, [ebx] |
||
642 | cmp eax, fs_NumCdServices |
||
643 | jae .not_impl |
||
644 | add ebx, 4 |
||
645 | call dword [fs_CdServices + eax*4] |
||
646 | call free_cd_channel |
||
647 | and [cd_status], 0 |
||
648 | mov [image_of_eax], eax |
||
649 | mov [image_of_ebx], ebx |
||
650 | ret |
||
651 | .not_impl: |
||
652 | call free_cd_channel |
||
653 | and [cd_status], 0 |
||
654 | mov dword [image_of_eax], 2 ; not implemented |
||
655 | ret |
||
656 | |||
657 | fs_CdServices: |
||
658 | dd fs_CdRead |
||
659 | dd fs_CdReadFolder |
||
660 | dd fs_NotImplemented |
||
661 | dd fs_NotImplemented |
||
662 | dd fs_NotImplemented |
||
663 | dd fs_CdGetFileInfo |
||
664 | dd fs_NotImplemented |
||
665 | dd 0 |
||
666 | dd fs_NotImplemented |
||
667 | dd fs_NotImplemented |
||
668 | fs_NumCdServices = ($ - fs_CdServices)/4 |
||
669 | |||
670 | ;******************************************************* |
||
671 | |||
672 | fs_HasRamdisk: |
||
673 | mov al, 1 ; we always have ramdisk |
||
674 | ret |
||
675 | |||
676 | fs_HasFloppy: |
||
677 | cmp byte [DRIVE_DATA], 0 |
||
678 | setnz al |
||
679 | ret |
||
680 | |||
681 | fs_HasHd0: |
||
682 | mov al, [DRIVE_DATA+1] |
||
683 | and al, 11000000b |
||
684 | cmp al, 01000000b |
||
685 | setz al |
||
686 | ret |
||
687 | fs_HasHd1: |
||
688 | mov al, [DRIVE_DATA+1] |
||
689 | and al, 00110000b |
||
690 | cmp al, 00010000b |
||
691 | setz al |
||
692 | ret |
||
693 | fs_HasHd2: |
||
694 | mov al, [DRIVE_DATA+1] |
||
695 | and al, 00001100b |
||
696 | cmp al, 00000100b |
||
697 | setz al |
||
698 | ret |
||
699 | fs_HasHd3: |
||
700 | mov al, [DRIVE_DATA+1] |
||
701 | and al, 00000011b |
||
702 | cmp al, 00000001b |
||
703 | setz al |
||
704 | ret |
||
705 | |||
706 | ;******************************************************* |
||
707 | fs_HasCd0: |
||
708 | mov al, [DRIVE_DATA+1] |
||
709 | and al, 11000000b |
||
710 | cmp al, 10000000b |
||
711 | setz al |
||
712 | ret |
||
713 | fs_HasCd1: |
||
714 | mov al, [DRIVE_DATA+1] |
||
715 | and al, 00110000b |
||
716 | cmp al, 00100000b |
||
717 | setz al |
||
718 | ret |
||
719 | fs_HasCd2: |
||
720 | mov al, [DRIVE_DATA+1] |
||
721 | and al, 00001100b |
||
722 | cmp al, 00001000b |
||
723 | setz al |
||
724 | ret |
||
725 | fs_HasCd3: |
||
726 | mov al, [DRIVE_DATA+1] |
||
727 | and al, 00000011b |
||
728 | cmp al, 00000010b |
||
729 | setz al |
||
730 | ret |
||
731 | ;******************************************************* |
||
732 | |||
733 | ; fs_NextXXX functions: |
||
734 | ; in: eax = partition number, from which start to scan |
||
735 | ; out: CF=1 => no more partitions |
||
736 | ; CF=0 => eax=next partition number |
||
737 | |||
738 | fs_NextRamdisk: |
||
739 | ; we always have /rd/1 |
||
740 | test eax, eax |
||
741 | stc |
||
742 | jnz @f |
||
743 | mov al, 1 |
||
744 | clc |
||
745 | @@: |
||
746 | ret |
||
747 | |||
748 | fs_NextFloppy: |
||
749 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
||
750 | test byte [DRIVE_DATA], 0xF0 |
||
751 | jz .no1 |
||
752 | test eax, eax |
||
753 | jnz .no1 |
||
754 | inc eax |
||
755 | ret ; CF cleared |
||
756 | .no1: |
||
757 | test byte [DRIVE_DATA], 0x0F |
||
758 | jz .no2 |
||
759 | cmp al, 2 |
||
760 | jae .no2 |
||
761 | mov al, 2 |
||
762 | clc |
||
763 | ret |
||
764 | .no2: |
||
765 | stc |
||
766 | ret |
||
767 | |||
768 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
769 | fs_NextHd0: |
||
770 | push 0 |
||
771 | jmp fs_NextHd |
||
772 | fs_NextHd1: |
||
773 | push 1 |
||
774 | jmp fs_NextHd |
||
775 | fs_NextHd2: |
||
776 | push 2 |
||
777 | jmp fs_NextHd |
||
778 | fs_NextHd3: |
||
779 | push 3 |
||
780 | fs_NextHd: |
||
781 | pop ecx |
||
782 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
783 | cmp eax, ecx |
||
784 | jae fs_NextFloppy.no2 |
||
785 | inc eax |
||
786 | clc |
||
787 | ret |
||
788 | |||
789 | ;******************************************************* |
||
790 | fs_NextCd: |
||
791 | ; we always have /cdX/1 |
||
792 | test eax, eax |
||
793 | stc |
||
794 | jnz @f |
||
795 | mov al, 1 |
||
796 | clc |
||
797 | @@: |
||
798 | ret |
||
799 | ;******************************************************* |
||
800 | |||
801 | ; Additional FS handlers. |
||
802 | ; This handler gets the control each time when fn 70 is called |
||
803 | ; with unknown item of root subdirectory. |
||
804 | ; in: esi -> name |
||
805 | ; ebp = 0 or rest of name relative to esi |
||
806 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
807 | ; but instead pop return address and return directly to the caller |
||
808 | ; otherwise simply return |
||
809 | |||
810 | ; here we test for /bd |
||
811 | biosdisk_handler: |
||
812 | cmp [NumBiosDisks], 0 |
||
813 | jz .ret |
||
814 | mov al, [esi] |
||
815 | or al, 20h |
||
816 | cmp al, 'b' |
||
817 | jnz .ret |
||
818 | mov al, [esi+1] |
||
819 | or al, 20h |
||
820 | cmp al, 'd' |
||
821 | jnz .ret |
||
822 | push esi |
||
823 | inc esi |
||
824 | inc esi |
||
825 | cmp byte [esi], '0' |
||
826 | jb .ret2 |
||
827 | cmp byte [esi], '9' |
||
828 | ja .ret2 |
||
829 | xor edx, edx |
||
830 | @@: |
||
831 | lodsb |
||
832 | test al, al |
||
833 | jz .ok |
||
834 | cmp al, '/' |
||
835 | jz .ok |
||
836 | sub al, '0' |
||
837 | cmp al, 9 |
||
838 | ja .ret2 |
||
839 | lea edx, [edx*5] |
||
840 | lea edx, [edx*2+eax] |
||
841 | jmp @b |
||
842 | .ret2: |
||
843 | pop esi |
||
844 | .ret: |
||
845 | ret |
||
846 | .ok: |
||
847 | cmp al, '/' |
||
848 | jz @f |
||
849 | dec esi |
||
850 | @@: |
||
851 | add dl, 80h |
||
852 | xor ecx, ecx |
||
853 | @@: |
||
854 | cmp dl, [BiosDisksData+ecx*4] |
||
855 | jz .ok2 |
||
856 | inc ecx |
||
857 | cmp ecx, [NumBiosDisks] |
||
858 | jb @b |
||
859 | jmp .ret2 |
||
860 | .ok2: |
||
861 | add esp, 8 |
||
862 | test al, al |
||
863 | jnz @f |
||
864 | mov esi, fs_BdNext |
||
865 | jmp file_system_lfn.maindir_noesi |
||
866 | @@: |
||
867 | push ecx |
||
868 | push ecx |
||
869 | push biosdisk_cleanup |
||
870 | push fs_OnBd |
||
871 | mov edi, esp |
||
872 | jmp file_system_lfn.found2 |
||
873 | |||
874 | fs_BdNext: |
||
875 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
876 | inc eax |
||
877 | cmc |
||
878 | biosdisk_cleanup: |
||
879 | ret |
||
880 | |||
881 | fs_OnBd: |
||
882 | pop edx edx edx edx |
||
883 | ; edx = disk number, ecx = partition number |
||
884 | ; esi+ebp = name |
||
885 | call reserve_hd1 |
||
886 | add edx, 0x80 |
||
887 | mov [hdpos], edx |
||
888 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
889 | jmp fs_OnHdAndBd |
||
890 | |||
891 | ; This handler is called when virtual root is enumerated |
||
892 | ; and must return all items which can be handled by this. |
||
893 | ; It is called several times, first time with eax=0 |
||
894 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
895 | ; out: eax = 0 => no more items |
||
896 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
897 | |||
898 | ; here we enumerate existing BIOS disks /bd |
||
899 | biosdisk_enum_root: |
||
900 | cmp eax, [NumBiosDisks] |
||
901 | jae .end |
||
902 | push eax |
||
903 | movzx eax, byte [BiosDisksData+eax*4] |
||
904 | sub al, 80h |
||
905 | push eax |
||
906 | mov al, 'b' |
||
907 | stosb |
||
908 | mov al, 'd' |
||
909 | stosb |
||
910 | pop eax |
||
911 | cmp al, 10 |
||
912 | jae .big |
||
913 | add al, '0' |
||
914 | stosb |
||
915 | mov byte [edi], 0 |
||
916 | pop eax |
||
917 | inc eax |
||
918 | ret |
||
919 | .end: |
||
920 | xor eax, eax |
||
921 | ret |
||
922 | .big: |
||
923 | push ecx edx |
||
924 | push -'0' |
||
925 | mov ecx, 10 |
||
926 | @@: |
||
927 | xor edx, edx |
||
928 | div ecx |
||
929 | push edx |
||
930 | test eax, eax |
||
931 | jnz @b |
||
932 | xchg eax, edx |
||
933 | @@: |
||
934 | pop eax |
||
935 | add al, '0' |
||
936 | stosb |
||
937 | jnz @b |
||
938 | pop edx ecx |
||
939 | pop eax |
||
940 | inc eax |
||
941 | ret |
||
942 | |||
943 | process_replace_file_name: |
||
944 | mov ebp, [full_file_name_table] |
||
945 | mov edi, [full_file_name_table.size] |
||
946 | dec edi |
||
947 | shl edi, 7 |
||
948 | add edi, ebp |
||
949 | .loop: |
||
950 | cmp edi, ebp |
||
951 | jb .notfound |
||
952 | push esi edi |
||
953 | @@: |
||
954 | cmp byte [edi], 0 |
||
955 | jz .dest_done |
||
956 | lodsb |
||
957 | test al, al |
||
958 | jz .cont |
||
959 | or al, 20h |
||
960 | scasb |
||
961 | jz @b |
||
962 | jmp .cont |
||
963 | .dest_done: |
||
964 | cmp byte [esi], 0 |
||
965 | jz .found |
||
966 | cmp byte [esi], '/' |
||
967 | jnz .cont |
||
968 | inc esi |
||
969 | jmp .found |
||
970 | .cont: |
||
971 | pop edi esi |
||
972 | sub edi, 128 |
||
973 | jmp .loop |
||
974 | .found: |
||
975 | pop edi eax |
||
976 | mov ebp, esi |
||
977 | cmp byte [esi], 0 |
||
978 | lea esi, [edi+64] |
||
979 | jnz .ret |
||
980 | .notfound: |
||
981 | xor ebp, ebp |
||
982 | .ret: |
||
983 | ret |
||
984 | |||
985 | sys_current_directory: |
||
986 | ; mov esi, [current_slot] |
||
987 | ; mov esi, [esi+APPDATA.cur_dir] |
||
988 | ; mov edx, esi |
||
989 | |||
990 | ;get length string of appdata.cur_dir |
||
991 | mov eax, [current_slot] |
||
992 | mov edi, [eax+APPDATA.cur_dir] |
||
993 | |||
994 | dec ebx |
||
995 | jz .set |
||
996 | dec ebx |
||
997 | jz .get |
||
998 | ret |
||
999 | .get: |
||
1000 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
1001 | ; for our code: ebx->buffer,ecx=len |
||
1002 | max_cur_dir equ 0x1000 |
||
1003 | |||
1004 | mov ebx, edi |
||
1005 | |||
1006 | push ecx |
||
1007 | push edi |
||
1008 | |||
1009 | xor eax, eax |
||
1010 | mov ecx, max_cur_dir |
||
1011 | |||
1012 | repne scasb ;find zerro at and string |
||
1013 | jnz .error ; no zero in cur_dir: internal error, should not happen |
||
1014 | |||
1015 | sub edi, ebx ;lenght for copy |
||
1016 | inc edi |
||
1017 | mov [esp+32+8], edi ;return in eax |
||
1018 | |||
1019 | cmp edx, edi |
||
1020 | jbe @f |
||
1021 | mov edx, edi |
||
1022 | @@: |
||
1023 | ;source string |
||
1024 | pop esi |
||
1025 | ;destination string |
||
1026 | pop edi |
||
1027 | cmp edx, 1 |
||
1028 | jbe .ret |
||
1029 | |||
1030 | mov al, '/' ;start string with '/' |
||
1031 | stosb |
||
1032 | mov ecx, edx |
||
1033 | rep movsb ;copy string |
||
1034 | .ret: |
||
1035 | ret |
||
1036 | |||
1037 | .error: |
||
1038 | add esp, 8 |
||
1039 | or dword [esp+32], -1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
1040 | ret |
||
1041 | .set: |
||
1042 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
1043 | ; for our code: ebx->string to set |
||
1044 | ; use generic resolver with APPDATA.cur_dir as destination |
||
1045 | push max_cur_dir ;0x1000 |
||
1046 | push edi ;destination |
||
1047 | mov ebx, ecx |
||
1048 | call get_full_file_name |
||
1049 | ret |
||
1050 | |||
1051 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
1052 | ; destroys all registers except ebp,esp |
||
1053 | get_full_file_name: |
||
1054 | push ebp |
||
1055 | mov esi, [current_slot] |
||
1056 | mov esi, [esi+APPDATA.cur_dir] |
||
1057 | mov edx, esi |
||
1058 | @@: |
||
1059 | inc esi |
||
1060 | cmp byte [esi-1], 0 |
||
1061 | jnz @b |
||
1062 | dec esi |
||
1063 | cmp byte [ebx], '/' |
||
1064 | jz .set_absolute |
||
1065 | ; string gives relative path |
||
1066 | mov edi, [esp+8] ; destination |
||
1067 | .relative: |
||
1068 | cmp byte [ebx], 0 |
||
1069 | jz .set_ok |
||
1070 | cmp word [ebx], '.' |
||
1071 | jz .set_ok |
||
1072 | cmp word [ebx], './' |
||
1073 | jnz @f |
||
1074 | add ebx, 2 |
||
1075 | jmp .relative |
||
1076 | @@: |
||
1077 | cmp word [ebx], '..' |
||
1078 | jnz .doset_relative |
||
1079 | cmp byte [ebx+2], 0 |
||
1080 | jz @f |
||
1081 | cmp byte [ebx+2], '/' |
||
1082 | jnz .doset_relative |
||
1083 | @@: |
||
1084 | dec esi |
||
1085 | cmp byte [esi], '/' |
||
1086 | jnz @b |
||
1087 | add ebx, 3 |
||
1088 | jmp .relative |
||
1089 | .set_ok: |
||
1090 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
1091 | jz .set_ok.cur_dir |
||
1092 | sub esi, edx |
||
1093 | cmp esi, [esp+12] |
||
1094 | jb .set_ok.copy |
||
1095 | .fail: |
||
1096 | mov byte [edi], 0 |
||
1097 | xor eax, eax ; fail |
||
1098 | pop ebp |
||
1099 | ret 8 |
||
1100 | .set_ok.copy: |
||
1101 | mov ecx, esi |
||
1102 | mov esi, edx |
||
1103 | rep movsb |
||
1104 | mov byte [edi], 0 |
||
1105 | .ret.ok: |
||
1106 | mov al, 1 ; ok |
||
1107 | pop ebp |
||
1108 | ret 8 |
||
1109 | .set_ok.cur_dir: |
||
1110 | mov byte [esi], 0 |
||
1111 | jmp .ret.ok |
||
1112 | .doset_relative: |
||
1113 | cmp edx, edi |
||
1114 | jz .doset_relative.cur_dir |
||
1115 | sub esi, edx |
||
1116 | cmp esi, [esp+12] |
||
1117 | jae .fail |
||
1118 | mov ecx, esi |
||
1119 | mov esi, edx |
||
1120 | mov edx, edi |
||
1121 | rep movsb |
||
1122 | jmp .doset_relative.copy |
||
1123 | .doset_relative.cur_dir: |
||
1124 | mov edi, esi |
||
1125 | .doset_relative.copy: |
||
1126 | add edx, [esp+12] |
||
1127 | mov byte [edi], '/' |
||
1128 | inc edi |
||
1129 | cmp edi, edx |
||
1130 | jae .overflow |
||
1131 | @@: |
||
1132 | mov al, [ebx] |
||
1133 | inc ebx |
||
1134 | stosb |
||
1135 | test al, al |
||
1136 | jz .ret.ok |
||
1137 | cmp edi, edx |
||
1138 | jb @b |
||
1139 | .overflow: |
||
1140 | dec edi |
||
1141 | jmp .fail |
||
1142 | .set_absolute: |
||
1143 | lea esi, [ebx+1] |
||
1144 | call process_replace_file_name |
||
1145 | mov edi, [esp+8] |
||
1146 | mov edx, [esp+12] |
||
1147 | add edx, edi |
||
1148 | .set_copy: |
||
1149 | lodsb |
||
1150 | stosb |
||
1151 | test al, al |
||
1152 | jz .set_part2 |
||
1153 | .set_copy_cont: |
||
1154 | cmp edi, edx |
||
1155 | jb .set_copy |
||
1156 | jmp .overflow |
||
1157 | .set_part2: |
||
1158 | mov esi, ebp |
||
1159 | xor ebp, ebp |
||
1160 | test esi, esi |
||
1161 | jz .ret.ok |
||
1162 | mov byte [edi-1], '/' |
||
1163 | jmp .set_copy_cont |