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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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5363 | yogev_ezra | 3 | ;; Copyright (C) KolibriOS team 2004-2015. 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: 5994 $ |
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9 | |||
5954 | pathoswith | 10 | ; NTFS driver |
11 | |||
12 | ; Basic concepts: |
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13 | ; File is a FileRecord in the $MFT. |
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14 | ; $MFT is a file, that consists of FileRecords and starts with FileRecord of itself. |
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15 | ; FileRecord (FILE) consists of a header and attributes. |
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16 | ; Attribute consists of a header and a body. |
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17 | ; Attribute's body can be inside (resident) or outside of FileRecord. |
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18 | ; File's data is a body of $Data (80h) attribute. |
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19 | ; FileRecords is a data of the $MFT file. |
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20 | ; Directory is a file, that consists of index nodes. |
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21 | ; Resident index node is always located in a body of $IndexRoot (90h) attribute. |
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22 | ; Body of $IndexAllocation (A0h) attribute is always non resident |
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23 | ; and consists of IndexRecords. |
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24 | ; IndexRecord (INDX) consists of a header and an index node. |
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25 | ; Index node consists of a header and indexes. |
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26 | ; Index consists of a header and a copy of indexed attribute's body. |
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27 | ; Directories index $Filename (30h) attribute of all existing files. |
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28 | ; $IndexRoot and $IndexAllocation attributes of a directory has a name — $I30. |
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29 | |||
30 | ; Offsets: |
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31 | ; record header |
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32 | updateSequenceOffset = 4 |
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33 | updateSequenceSize = 6 |
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34 | reuseCounter = 16 |
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35 | hardLinkCounter = 12h |
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36 | attributeOffset = 14h |
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37 | recordFlags = 16h |
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38 | recordRealSize = 18h |
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39 | recordAllocatedSize = 1ch |
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5994 | pathoswith | 40 | baseRecordReference = 20h ; for auxiliary records |
41 | baseRecordReuse = 26h |
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5954 | pathoswith | 42 | newAttributeID = 28h |
43 | ; attribute header |
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44 | attributeType = 0 |
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45 | sizeWithHeader = 4 |
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46 | nonResidentFlag = 8 |
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47 | nameLength = 9 |
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48 | nameOffset = 10 |
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49 | attributeID = 14 |
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50 | sizeWithoutHeader = 16 |
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51 | attributeFlags = 16h |
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52 | ; non resident attribute header |
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53 | lastVCN = 18h |
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54 | dataRunsOffset = 20h |
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55 | attributeAllocatedSize = 28h |
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56 | attributeRealSize = 30h |
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57 | initialDataSize = 38h |
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58 | ; $IndexRoot |
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59 | collationRule = 4 |
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60 | indexRecordSize = 8 |
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61 | indexRecordSizeClus = 12 |
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62 | ; node header |
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63 | indexOffset = 0 |
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64 | nodeRealSize = 4 |
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65 | nodeAllocatedSize = 8 |
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66 | ; $Filename index |
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67 | fileRecordReference = 0 |
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68 | fileReferenceReuse = 6 |
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69 | indexAllocatedSize = 8 |
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70 | indexRawSize = 10 |
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71 | indexFlags = 12 |
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72 | directoryRecordReference = 16 |
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73 | directoryReferenceReuse = 16h |
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74 | fileAllocatedSize = 38h |
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75 | fileRealSize = 40h |
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76 | fileFlags = 48h |
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77 | fileNameLength = 50h |
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78 | |||
3742 | clevermous | 79 | struct NTFS PARTITION |
5954 | pathoswith | 80 | Lock MUTEX ? ; Currently operations with one partition |
81 | ; can not be executed in parallel since the legacy code is not ready. |
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82 | sectors_per_cluster dd ? |
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83 | mft_cluster dd ? ; location |
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84 | mftmirr_cluster dd ? ; location |
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85 | frs_size dd ? ; in bytes |
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86 | frs_buffer dd ? ; MFT fileRecord buffer |
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87 | mft_retrieval dd ? |
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88 | mft_retrieval_size dd ? |
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89 | mft_retrieval_alloc dd ? |
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90 | mft_retrieval_end dd ? |
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91 | cur_index_size dd ? ; in sectors |
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92 | cur_index_buf dd ? ; index node buffer |
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93 | BitmapBuffer dd ? |
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94 | BitmapTotalSize dd ? ; bytes reserved |
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95 | BitmapSize dd ? ; bytes readen |
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96 | BitmapLocation dd ? ; starting sector |
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97 | BitmapStart dd ? ; first byte after area, reserved for MFT |
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98 | mftBitmapBuffer dd ? ; one cluster |
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99 | mftBitmapSize dd ? ; bytes readen |
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100 | mftBitmapLocation dd ? ; starting sector |
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2288 | clevermous | 101 | |
5954 | pathoswith | 102 | ntfs_cur_attr dd ? ; attribute type |
103 | ntfs_cur_iRecord dd ? ; number of fileRecord in MFT |
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104 | ntfs_cur_offs dd ? ; attribute VCN in sectors |
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105 | ntfs_cur_size dd ? ; max sectors to read |
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106 | ntfs_cur_buf dd ? |
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107 | ntfs_cur_read dd ? ; bytes readen |
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108 | ntfsLastRead dd ? ; last readen block of sectors |
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109 | newMftRecord dd ? ; number of fileRecord in MFT |
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110 | fileDataStart dd ? ; starting cluster |
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111 | fileDataSize dd ? ; in clusters |
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112 | fileRealSize dd ? ; in bytes |
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113 | indexOffset dd ? |
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114 | nodeLastRead dd ? |
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115 | ntfs_bCanContinue db ? |
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116 | ntfsFolder db ? |
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5994 | pathoswith | 117 | ntfsWriteAttr db ? ; Warning: Don't forget to turn off!!! |
5954 | pathoswith | 118 | ntfsFragmentCount db ? |
3742 | clevermous | 119 | |
5954 | pathoswith | 120 | cur_subnode_size dd ? |
121 | ntfs_attr_iRecord dd ? |
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122 | ntfs_attr_iBaseRecord dd ? |
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123 | ntfs_attr_offs dd ? |
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124 | ntfs_attr_list dd ? |
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125 | ntfs_attr_size dq ? |
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126 | ntfs_cur_tail dd ? |
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3742 | clevermous | 127 | |
5954 | pathoswith | 128 | ntfs_attrlist_buf rb 0x400 |
129 | ntfs_attrlist_mft_buf rb 0x400 |
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130 | ntfs_bitmap_buf rb 0x400 |
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3742 | clevermous | 131 | ends |
132 | |||
5954 | pathoswith | 133 | ; NTFS external functions |
134 | ; in: |
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135 | ; ebx -> parameter structure of sysfunc 70 |
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136 | ; ebp -> NTFS structure |
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137 | ; [esi]+[esp+4] = name |
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138 | ; out: |
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139 | ; eax, ebx = return values for sysfunc 70 |
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3742 | clevermous | 140 | iglobal |
141 | align 4 |
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142 | ntfs_user_functions: |
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143 | dd ntfs_free |
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144 | dd (ntfs_user_functions_end - ntfs_user_functions - 4) / 4 |
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5954 | pathoswith | 145 | dd ntfs_ReadFile |
3742 | clevermous | 146 | dd ntfs_ReadFolder |
5954 | pathoswith | 147 | dd ntfs_CreateFile |
5994 | pathoswith | 148 | dd ntfs_WriteFile |
3742 | clevermous | 149 | dd ntfs_SetFileEnd |
150 | dd ntfs_GetFileInfo |
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151 | dd ntfs_SetFileInfo |
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152 | dd 0 |
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153 | dd ntfs_Delete |
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154 | dd ntfs_CreateFolder |
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155 | ntfs_user_functions_end: |
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156 | endg |
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157 | |||
2288 | clevermous | 158 | ntfs_test_bootsec: |
5954 | pathoswith | 159 | ; in: ebx -> buffer, edx = size of partition |
160 | ; out: CF=1 -> invalid |
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2288 | clevermous | 161 | ; 1. Name=='NTFS ' |
162 | cmp dword [ebx+3], 'NTFS' |
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163 | jnz .no |
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164 | cmp dword [ebx+7], ' ' |
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165 | jnz .no |
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166 | ; 2. Number of bytes per sector is the same as for physical device |
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167 | ; (that is, 0x200 for hard disk) |
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168 | cmp word [ebx+11], 0x200 |
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169 | jnz .no |
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170 | ; 3. Number of sectors per cluster must be power of 2 |
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171 | movzx eax, byte [ebx+13] |
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172 | dec eax |
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173 | js .no |
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174 | test al, [ebx+13] |
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175 | jnz .no |
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176 | ; 4. FAT parameters must be zero |
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177 | cmp word [ebx+14], 0 |
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178 | jnz .no |
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179 | cmp dword [ebx+16], 0 |
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180 | jnz .no |
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181 | cmp byte [ebx+20], 0 |
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182 | jnz .no |
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183 | cmp word [ebx+22], 0 |
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184 | jnz .no |
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185 | cmp dword [ebx+32], 0 |
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186 | jnz .no |
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187 | ; 5. Number of sectors <= partition size |
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188 | cmp dword [ebx+0x2C], 0 |
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189 | ja .no |
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190 | cmp [ebx+0x28], edx |
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191 | ja .no |
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192 | ; 6. $MFT and $MFTMirr clusters must be within partition |
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193 | cmp dword [ebx+0x34], 0 |
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194 | ja .no |
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195 | push edx |
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196 | movzx eax, byte [ebx+13] |
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197 | mul dword [ebx+0x30] |
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198 | test edx, edx |
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199 | pop edx |
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200 | jnz .no |
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201 | cmp eax, edx |
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202 | ja .no |
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203 | cmp dword [ebx+0x3C], 0 |
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204 | ja .no |
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205 | push edx |
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206 | movzx eax, byte [ebx+13] |
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207 | mul dword [ebx+0x38] |
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208 | test edx, edx |
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209 | pop edx |
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210 | jnz .no |
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211 | cmp eax, edx |
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212 | ja .no |
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5954 | pathoswith | 213 | ; 7. Clusters per FRS must be either power of 2 or between -31 and -9 |
2288 | clevermous | 214 | movsx eax, byte [ebx+0x40] |
215 | cmp al, -31 |
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216 | jl .no |
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217 | cmp al, -9 |
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218 | jle @f |
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219 | dec eax |
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220 | js .no |
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221 | test [ebx+0x40], al |
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222 | jnz .no |
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5954 | pathoswith | 223 | @@: ; 8. Same for clusters per IndexAllocationBuffer |
2288 | clevermous | 224 | movsx eax, byte [ebx+0x44] |
225 | cmp al, -31 |
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226 | jl .no |
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227 | cmp al, -9 |
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228 | jle @f |
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229 | dec eax |
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230 | js .no |
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231 | test [ebx+0x44], al |
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232 | jnz .no |
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5954 | pathoswith | 233 | @@: ; OK, this is correct NTFS bootsector |
2288 | clevermous | 234 | clc |
235 | ret |
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5954 | pathoswith | 236 | .no: ; No, this bootsector isn't NTFS |
2288 | clevermous | 237 | stc |
238 | ret |
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239 | |||
5954 | pathoswith | 240 | ntfs_create_partition: |
5089 | clevermous | 241 | cmp dword [esi+DISK.MediaInfo.SectorSize], 512 |
242 | jnz .nope |
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3742 | clevermous | 243 | mov edx, dword [ebp+PARTITION.Length] |
244 | cmp dword [esp+4], 0 |
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245 | jz .boot_read_ok |
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246 | add ebx, 512 |
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247 | lea eax, [edx-1] |
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248 | call fs_read32_sys |
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249 | test eax, eax |
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250 | jnz @f |
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251 | call ntfs_test_bootsec |
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252 | jnc .ntfs_setup |
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253 | @@: |
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254 | mov eax, edx |
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255 | shr eax, 1 |
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256 | call fs_read32_sys |
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257 | test eax, eax |
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5954 | pathoswith | 258 | jnz .nope |
3742 | clevermous | 259 | .boot_read_ok: |
260 | call ntfs_test_bootsec |
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261 | jnc .ntfs_setup |
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262 | .nope: |
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263 | xor eax, eax |
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264 | jmp .exit |
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5954 | pathoswith | 265 | ; By given bootsector, initialize some NTFS variables |
3742 | clevermous | 266 | .ntfs_setup: |
267 | movi eax, sizeof.NTFS |
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268 | call malloc |
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269 | test eax, eax |
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270 | jz .exit |
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271 | mov ecx, dword [ebp+PARTITION.FirstSector] |
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272 | mov dword [eax+NTFS.FirstSector], ecx |
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273 | mov ecx, dword [ebp+PARTITION.FirstSector+4] |
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274 | mov dword [eax+NTFS.FirstSector+4], ecx |
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275 | mov ecx, dword [ebp+PARTITION.Length] |
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276 | mov dword [eax+NTFS.Length], ecx |
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277 | mov ecx, dword [ebp+PARTITION.Length+4] |
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278 | mov dword [eax+NTFS.Length+4], ecx |
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279 | mov ecx, [ebp+PARTITION.Disk] |
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280 | mov [eax+NTFS.Disk], ecx |
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281 | mov [eax+NTFS.FSUserFunctions], ntfs_user_functions |
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5994 | pathoswith | 282 | mov [eax+NTFS.ntfsWriteAttr], 0 |
5954 | pathoswith | 283 | |
3742 | clevermous | 284 | push ebx ebp esi |
285 | mov ebp, eax |
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286 | lea ecx, [ebp+NTFS.Lock] |
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287 | call mutex_init |
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2288 | clevermous | 288 | movzx eax, byte [ebx+13] |
3742 | clevermous | 289 | mov [ebp+NTFS.sectors_per_cluster], eax |
2288 | clevermous | 290 | mov eax, [ebx+0x28] |
3742 | clevermous | 291 | mov dword [ebp+NTFS.Length], eax |
292 | and dword [ebp+NTFS.Length+4], 0 |
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2288 | clevermous | 293 | mov eax, [ebx+0x30] |
3742 | clevermous | 294 | mov [ebp+NTFS.mft_cluster], eax |
2288 | clevermous | 295 | mov eax, [ebx+0x38] |
3742 | clevermous | 296 | mov [ebp+NTFS.mftmirr_cluster], eax |
2288 | clevermous | 297 | movsx eax, byte [ebx+0x40] |
298 | test eax, eax |
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5954 | pathoswith | 299 | js @f |
3742 | clevermous | 300 | mul [ebp+NTFS.sectors_per_cluster] |
2288 | clevermous | 301 | shl eax, 9 |
5954 | pathoswith | 302 | jmp .1 |
303 | @@: |
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2288 | clevermous | 304 | neg eax |
305 | mov ecx, eax |
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306 | mov eax, 1 |
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307 | shl eax, cl |
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5954 | pathoswith | 308 | .1: |
3742 | clevermous | 309 | mov [ebp+NTFS.frs_size], eax |
5954 | pathoswith | 310 | stdcall kernel_alloc, eax |
2288 | clevermous | 311 | test eax, eax |
3742 | clevermous | 312 | jz .fail_free |
313 | mov [ebp+NTFS.frs_buffer], eax |
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2288 | clevermous | 314 | ; read $MFT disposition |
3742 | clevermous | 315 | mov eax, [ebp+NTFS.mft_cluster] |
316 | mul [ebp+NTFS.sectors_per_cluster] |
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2288 | clevermous | 317 | call ntfs_read_frs_sector |
3742 | clevermous | 318 | test eax, eax |
2288 | clevermous | 319 | jnz .usemirr |
320 | cmp dword [ebx], 'FILE' |
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321 | jnz .usemirr |
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322 | call ntfs_restore_usa_frs |
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323 | jnc .mftok |
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324 | .usemirr: |
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3742 | clevermous | 325 | mov eax, [ebp+NTFS.mftmirr_cluster] |
326 | mul [ebp+NTFS.sectors_per_cluster] |
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2288 | clevermous | 327 | call ntfs_read_frs_sector |
3742 | clevermous | 328 | test eax, eax |
5954 | pathoswith | 329 | jnz .fail_free_frs |
2288 | clevermous | 330 | cmp dword [ebx], 'FILE' |
5954 | pathoswith | 331 | jnz .fail_free_frs |
2288 | clevermous | 332 | call ntfs_restore_usa_frs |
5954 | pathoswith | 333 | jc .fail_free_frs |
2288 | clevermous | 334 | .mftok: |
335 | ; read $MFT table retrieval information |
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336 | ; start with one page, increase if not enough (when MFT too fragmented) |
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337 | push ebx |
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5954 | pathoswith | 338 | stdcall kernel_alloc, 0x1000 |
2288 | clevermous | 339 | pop ebx |
340 | test eax, eax |
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341 | jz .fail_free_frs |
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3742 | clevermous | 342 | mov [ebp+NTFS.mft_retrieval], eax |
343 | and [ebp+NTFS.mft_retrieval_size], 0 |
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344 | mov [ebp+NTFS.mft_retrieval_alloc], 0x1000/8 |
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2288 | clevermous | 345 | ; $MFT base record must contain unnamed non-resident $DATA attribute |
346 | movzx eax, word [ebx+14h] |
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347 | add eax, ebx |
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348 | .scandata: |
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349 | cmp dword [eax], -1 |
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350 | jz .fail_free_mft |
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351 | cmp dword [eax], 0x80 |
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352 | jnz @f |
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353 | cmp byte [eax+9], 0 |
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354 | jz .founddata |
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355 | @@: |
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356 | add eax, [eax+4] |
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357 | jmp .scandata |
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358 | .founddata: |
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359 | cmp byte [eax+8], 0 |
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360 | jz .fail_free_mft |
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361 | ; load first portion of $DATA attribute retrieval information |
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362 | mov edx, [eax+0x18] |
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3742 | clevermous | 363 | mov [ebp+NTFS.mft_retrieval_end], edx |
2288 | clevermous | 364 | mov esi, eax |
365 | movzx eax, word [eax+0x20] |
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366 | add esi, eax |
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367 | sub esp, 10h |
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368 | .scanmcb: |
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369 | call ntfs_decode_mcb_entry |
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370 | jnc .scanmcbend |
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371 | call .get_mft_retrieval_ptr |
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372 | mov edx, [esp] ; block length |
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373 | mov [eax], edx |
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374 | mov edx, [esp+8] ; block addr (relative) |
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375 | mov [eax+4], edx |
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3742 | clevermous | 376 | inc [ebp+NTFS.mft_retrieval_size] |
2288 | clevermous | 377 | jmp .scanmcb |
378 | .scanmcbend: |
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379 | add esp, 10h |
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380 | ; there may be other portions of $DATA attribute in auxiliary records; |
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381 | ; if they will be needed, they will be loaded later |
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3742 | clevermous | 382 | mov [ebp+NTFS.cur_index_size], 0x1000/0x200 |
5954 | pathoswith | 383 | stdcall kernel_alloc, 0x1000 |
2288 | clevermous | 384 | test eax, eax |
385 | jz .fail_free_mft |
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3742 | clevermous | 386 | mov [ebp+NTFS.cur_index_buf], eax |
5954 | pathoswith | 387 | ; reserve adress space for bitmap buffer and load some part of bitmap |
388 | mov eax, dword [ebp+NTFS.Length] |
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389 | xor edx, edx |
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390 | div [ebp+NTFS.sectors_per_cluster] |
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391 | shr eax, 3 |
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392 | mov [ebp+NTFS.BitmapTotalSize], eax |
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393 | add eax, 7FFFh |
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394 | and eax, not 7FFFh |
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395 | push eax |
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396 | call alloc_kernel_space |
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397 | test eax, eax |
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398 | jz .failFreeIndex |
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399 | mov [ebp+NTFS.BitmapBuffer], eax |
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400 | mov [ebp+NTFS.ntfs_cur_buf], eax |
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401 | mov eax, [ebp+NTFS.BitmapTotalSize] |
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402 | add eax, [ebp+NTFS.mft_cluster] |
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403 | shr eax, 3+2 ; reserve 1/8 of partition for $MFT |
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404 | shl eax, 2 |
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405 | mov [ebp+NTFS.BitmapStart], eax |
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406 | shr eax, 15 |
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407 | inc eax |
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408 | shl eax, 3 |
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409 | push eax |
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410 | push eax |
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411 | shl eax, 3 |
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412 | mov [ebp+NTFS.ntfs_cur_size], eax |
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413 | call alloc_pages |
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414 | test eax, eax |
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415 | pop ecx |
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416 | jz .failFreeBitmap |
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417 | add eax, 3 |
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418 | mov ebx, [ebp+NTFS.BitmapBuffer] |
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419 | call commit_pages |
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420 | mov [ebp+NTFS.ntfs_cur_iRecord], 6 |
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421 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 |
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422 | mov [ebp+NTFS.ntfs_cur_offs], 0 |
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423 | call ntfs_read_attr |
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424 | jc .failFreeBitmap |
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425 | mov eax, [ebp+NTFS.ntfs_cur_read] |
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426 | mov [ebp+NTFS.BitmapSize], eax |
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427 | mov eax, [ebp+NTFS.ntfsLastRead] |
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428 | mov [ebp+NTFS.BitmapLocation], eax |
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429 | ; read MFT $BITMAP attribute |
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430 | mov eax, [ebp+NTFS.sectors_per_cluster] |
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431 | mov [ebp+NTFS.ntfs_cur_size], eax |
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432 | shl eax, 9 |
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433 | stdcall kernel_alloc, eax |
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434 | test eax, eax |
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435 | jz .failFreeBitmap |
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436 | mov [ebp+NTFS.mftBitmapBuffer], eax |
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437 | mov [ebp+NTFS.ntfs_cur_buf], eax |
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438 | mov [ebp+NTFS.ntfs_cur_iRecord], 0 |
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439 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 |
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440 | mov [ebp+NTFS.ntfs_cur_offs], 0 |
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441 | call ntfs_read_attr |
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442 | mov eax, [ebp+NTFS.ntfs_cur_read] |
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443 | cmp eax, 4 |
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444 | jc .failFreeBitmapMFT |
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445 | mov [ebp+NTFS.mftBitmapSize], eax |
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446 | mov eax, [ebp+NTFS.ntfsLastRead] |
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447 | mov [ebp+NTFS.mftBitmapLocation], eax |
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2288 | clevermous | 448 | |
3742 | clevermous | 449 | mov eax, ebp |
5954 | pathoswith | 450 | .pop_exit: |
451 | pop esi ebp ebx |
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452 | .exit: |
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453 | cmp dword [esp+4], 0 |
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454 | jz @f |
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455 | sub ebx, 512 |
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456 | @@: |
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457 | ret |
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458 | |||
459 | .failFreeBitmapMFT: |
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460 | stdcall kernel_free, [ebx+NTFS.mftBitmapBuffer] |
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461 | .failFreeBitmap: |
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462 | stdcall kernel_free, [ebx+NTFS.BitmapBuffer] |
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463 | .failFreeIndex: |
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464 | stdcall kernel_free, [ebp+NTFS.cur_index_buf] |
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465 | .fail_free_mft: |
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466 | stdcall kernel_free, [ebp+NTFS.mft_retrieval] |
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467 | .fail_free_frs: |
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468 | stdcall kernel_free, [ebp+NTFS.frs_buffer] |
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469 | .fail_free: |
||
470 | mov eax, ebp |
||
471 | call free |
||
472 | xor eax, eax |
||
3742 | clevermous | 473 | jmp .pop_exit |
2288 | clevermous | 474 | |
475 | .get_mft_retrieval_ptr: |
||
476 | pushad |
||
3742 | clevermous | 477 | mov eax, [ebp+NTFS.mft_retrieval_size] |
478 | cmp eax, [ebp+NTFS.mft_retrieval_alloc] |
||
2288 | clevermous | 479 | jnz .ok |
480 | add eax, 0x1000/8 |
||
3742 | clevermous | 481 | mov [ebp+NTFS.mft_retrieval_alloc], eax |
2288 | clevermous | 482 | shl eax, 3 |
5954 | pathoswith | 483 | stdcall kernel_alloc, eax |
2288 | clevermous | 484 | test eax, eax |
485 | jnz @f |
||
486 | popad |
||
487 | add esp, 14h |
||
488 | jmp .fail_free_mft |
||
489 | @@: |
||
3742 | clevermous | 490 | mov esi, [ebp+NTFS.mft_retrieval] |
2288 | clevermous | 491 | mov edi, eax |
3742 | clevermous | 492 | mov ecx, [ebp+NTFS.mft_retrieval_size] |
2288 | clevermous | 493 | add ecx, ecx |
494 | rep movsd |
||
3742 | clevermous | 495 | push [ebp+NTFS.mft_retrieval] |
496 | mov [ebp+NTFS.mft_retrieval], eax |
||
2288 | clevermous | 497 | call kernel_free |
3742 | clevermous | 498 | mov eax, [ebp+NTFS.mft_retrieval_size] |
2288 | clevermous | 499 | .ok: |
500 | shl eax, 3 |
||
3742 | clevermous | 501 | add eax, [ebp+NTFS.mft_retrieval] |
2288 | clevermous | 502 | mov [esp+28], eax |
503 | popad |
||
504 | ret |
||
505 | |||
5954 | pathoswith | 506 | ntfs_free: |
3742 | clevermous | 507 | push ebx |
5954 | pathoswith | 508 | mov ebx, eax |
3742 | clevermous | 509 | stdcall kernel_free, [ebx+NTFS.frs_buffer] |
510 | stdcall kernel_free, [ebx+NTFS.mft_retrieval] |
||
511 | stdcall kernel_free, [ebx+NTFS.cur_index_buf] |
||
5954 | pathoswith | 512 | stdcall kernel_free, [ebx+NTFS.mftBitmapBuffer] |
513 | stdcall kernel_free, [ebx+NTFS.BitmapBuffer] |
||
514 | mov eax, ebx |
||
3742 | clevermous | 515 | pop ebx |
5954 | pathoswith | 516 | jmp free |
3742 | clevermous | 517 | |
5954 | pathoswith | 518 | ntfs_lock: |
3742 | clevermous | 519 | lea ecx, [ebp+NTFS.Lock] |
520 | jmp mutex_lock |
||
521 | |||
5954 | pathoswith | 522 | ntfs_unlock: |
3742 | clevermous | 523 | lea ecx, [ebp+NTFS.Lock] |
524 | jmp mutex_unlock |
||
525 | |||
2288 | clevermous | 526 | ntfs_read_frs_sector: |
3742 | clevermous | 527 | push ecx |
528 | mov ebx, [ebp+NTFS.frs_buffer] |
||
529 | push ebx |
||
530 | mov ecx, [ebp+NTFS.frs_size] |
||
2288 | clevermous | 531 | shr ecx, 9 |
3742 | clevermous | 532 | push ecx |
533 | mov ecx, eax |
||
2288 | clevermous | 534 | @@: |
3742 | clevermous | 535 | mov eax, ecx |
536 | call fs_read32_sys |
||
537 | test eax, eax |
||
2288 | clevermous | 538 | jnz .fail |
539 | add ebx, 0x200 |
||
3742 | clevermous | 540 | inc ecx |
541 | dec dword [esp] |
||
542 | jnz @b |
||
543 | pop eax |
||
2288 | clevermous | 544 | .fail: |
545 | pop ebx |
||
3742 | clevermous | 546 | pop ecx |
2288 | clevermous | 547 | ret |
548 | |||
549 | ntfs_read_attr: |
||
5994 | pathoswith | 550 | ; [ebp+NTFS.ntfsWriteAttr]=1 -> write attribute |
5954 | pathoswith | 551 | ; in: |
552 | ; [ebp+NTFS.ntfs_cur_iRecord] = number of fileRecord |
||
553 | ; [ebp+NTFS.ntfs_cur_attr] = attribute type |
||
554 | ; [ebp+NTFS.ntfs_cur_offs] = attribute VCN in sectors |
||
555 | ; [ebp+NTFS.ntfs_cur_buf] -> buffer for data |
||
556 | ; [ebp+NTFS.ntfs_cur_size] = max sectors to read |
||
557 | ; out: |
||
558 | ; [ebp+NTFS.ntfs_cur_read] = bytes readen |
||
559 | ; CF=1 -> failed, eax = disk error code, eax=0 -> something with FS |
||
3742 | clevermous | 560 | xor eax, eax |
2288 | clevermous | 561 | pushad |
3742 | clevermous | 562 | and [ebp+NTFS.ntfs_cur_read], 0 |
563 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
2288 | clevermous | 564 | jnz .nomft |
3742 | clevermous | 565 | cmp [ebp+NTFS.ntfs_cur_attr], 0x80 |
2288 | clevermous | 566 | jnz .nomft |
3742 | clevermous | 567 | mov eax, [ebp+NTFS.mft_retrieval_end] |
2288 | clevermous | 568 | inc eax |
3742 | clevermous | 569 | mul [ebp+NTFS.sectors_per_cluster] |
570 | cmp eax, [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 571 | jbe .nomft |
572 | ; precalculated part of $Mft $DATA |
||
3742 | clevermous | 573 | mov esi, [ebp+NTFS.mft_retrieval] |
574 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 575 | xor edx, edx |
3742 | clevermous | 576 | div [ebp+NTFS.sectors_per_cluster] |
2288 | clevermous | 577 | ; eax = VCN, edx = offset in sectors from beginning of cluster |
578 | xor ecx, ecx ; ecx will contain LCN |
||
579 | .mftscan: |
||
580 | add ecx, [esi+4] |
||
581 | sub eax, [esi] |
||
582 | jb @f |
||
583 | add esi, 8 |
||
584 | push eax |
||
3742 | clevermous | 585 | mov eax, [ebp+NTFS.mft_retrieval_end] |
2288 | clevermous | 586 | shl eax, 3 |
3742 | clevermous | 587 | add eax, [ebp+NTFS.mft_retrieval] |
2288 | clevermous | 588 | cmp eax, esi |
589 | pop eax |
||
590 | jnz .mftscan |
||
591 | jmp .nomft |
||
592 | @@: |
||
593 | push ecx |
||
594 | add ecx, eax |
||
595 | add ecx, [esi] |
||
596 | push eax |
||
597 | push edx |
||
3742 | clevermous | 598 | mov eax, [ebp+NTFS.sectors_per_cluster] |
2288 | clevermous | 599 | mul ecx |
600 | ; eax = sector on partition |
||
601 | pop edx |
||
602 | add eax, edx |
||
3742 | clevermous | 603 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
2288 | clevermous | 604 | pop ecx |
605 | neg ecx |
||
3742 | clevermous | 606 | imul ecx, [ebp+NTFS.sectors_per_cluster] |
2288 | clevermous | 607 | sub ecx, edx |
5954 | pathoswith | 608 | mov [ebp+NTFS.ntfsLastRead], eax |
3742 | clevermous | 609 | cmp ecx, [ebp+NTFS.ntfs_cur_size] |
2288 | clevermous | 610 | jb @f |
3742 | clevermous | 611 | mov ecx, [ebp+NTFS.ntfs_cur_size] |
2288 | clevermous | 612 | @@: |
613 | ; ecx = number of sequential sectors to read |
||
3742 | clevermous | 614 | push eax |
615 | call fs_read32_sys |
||
616 | pop edx |
||
617 | test eax, eax |
||
2288 | clevermous | 618 | jnz .errread |
3742 | clevermous | 619 | add [ebp+NTFS.ntfs_cur_read], 0x200 |
620 | dec [ebp+NTFS.ntfs_cur_size] |
||
621 | inc [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 622 | add ebx, 0x200 |
3742 | clevermous | 623 | mov [ebp+NTFS.ntfs_cur_buf], ebx |
624 | lea eax, [edx+1] |
||
2288 | clevermous | 625 | loop @b |
626 | pop ecx |
||
627 | xor eax, eax |
||
628 | xor edx, edx |
||
3742 | clevermous | 629 | cmp [ebp+NTFS.ntfs_cur_size], eax |
2288 | clevermous | 630 | jz @f |
631 | add esi, 8 |
||
632 | push eax |
||
3742 | clevermous | 633 | mov eax, [ebp+NTFS.mft_retrieval_end] |
2288 | clevermous | 634 | shl eax, 3 |
3742 | clevermous | 635 | add eax, [ebp+NTFS.mft_retrieval] |
2288 | clevermous | 636 | cmp eax, esi |
637 | pop eax |
||
638 | jz .nomft |
||
639 | jmp .mftscan |
||
640 | @@: |
||
641 | popad |
||
642 | ret |
||
643 | .errread: |
||
644 | pop ecx |
||
645 | .errret: |
||
3742 | clevermous | 646 | mov [esp+28], eax |
2288 | clevermous | 647 | stc |
648 | popad |
||
649 | ret |
||
650 | .nomft: |
||
651 | ; 1. Read file record. |
||
652 | ; N.B. This will do recursive call of read_attr for $MFT::$Data. |
||
3742 | clevermous | 653 | mov eax, [ebp+NTFS.ntfs_cur_iRecord] |
654 | mov [ebp+NTFS.ntfs_attr_iRecord], eax |
||
655 | and [ebp+NTFS.ntfs_attr_list], 0 |
||
656 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
||
657 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
||
658 | or [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
||
2288 | clevermous | 659 | call ntfs_read_file_record |
3742 | clevermous | 660 | jc .errret |
2288 | clevermous | 661 | ; 2. Find required attribute. |
3742 | clevermous | 662 | mov eax, [ebp+NTFS.frs_buffer] |
2288 | clevermous | 663 | ; a) For auxiliary records, read base record |
664 | ; N.B. If base record is present, |
||
665 | ; base iRecord may be 0 (for $Mft), but SequenceNumber is nonzero |
||
666 | cmp dword [eax+24h], 0 |
||
667 | jz @f |
||
668 | mov eax, [eax+20h] |
||
669 | ; test eax, eax |
||
670 | ; jz @f |
||
671 | .beginfindattr: |
||
3742 | clevermous | 672 | mov [ebp+NTFS.ntfs_attr_iRecord], eax |
2288 | clevermous | 673 | call ntfs_read_file_record |
3742 | clevermous | 674 | jc .errret |
2288 | clevermous | 675 | @@: |
676 | ; b) Scan for required attribute and for $ATTR_LIST |
||
3742 | clevermous | 677 | mov eax, [ebp+NTFS.frs_buffer] |
2288 | clevermous | 678 | movzx ecx, word [eax+14h] |
679 | add eax, ecx |
||
3742 | clevermous | 680 | mov ecx, [ebp+NTFS.ntfs_cur_attr] |
681 | and [ebp+NTFS.ntfs_attr_offs], 0 |
||
2288 | clevermous | 682 | .scanattr: |
683 | cmp dword [eax], -1 |
||
684 | jz .scandone |
||
685 | cmp dword [eax], ecx |
||
686 | jz .okattr |
||
3742 | clevermous | 687 | cmp [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
2288 | clevermous | 688 | jnz .scancont |
689 | cmp dword [eax], 0x20 ; $ATTR_LIST |
||
690 | jnz .scancont |
||
3742 | clevermous | 691 | mov [ebp+NTFS.ntfs_attr_list], eax |
2288 | clevermous | 692 | jmp .scancont |
693 | .okattr: |
||
694 | ; ignore named $DATA attributes (aka NTFS streams) |
||
695 | cmp ecx, 0x80 |
||
696 | jnz @f |
||
697 | cmp byte [eax+9], 0 |
||
698 | jnz .scancont |
||
699 | @@: |
||
3742 | clevermous | 700 | mov [ebp+NTFS.ntfs_attr_offs], eax |
2288 | clevermous | 701 | .scancont: |
702 | add eax, [eax+4] |
||
703 | jmp .scanattr |
||
704 | .continue: |
||
705 | pushad |
||
3742 | clevermous | 706 | and [ebp+NTFS.ntfs_cur_read], 0 |
2288 | clevermous | 707 | .scandone: |
708 | ; c) Check for required offset and length |
||
3742 | clevermous | 709 | mov ecx, [ebp+NTFS.ntfs_attr_offs] |
2288 | clevermous | 710 | jecxz .noattr |
3742 | clevermous | 711 | push [ebp+NTFS.ntfs_cur_size] |
712 | push [ebp+NTFS.ntfs_cur_read] |
||
2288 | clevermous | 713 | call .doreadattr |
714 | pop edx |
||
3742 | clevermous | 715 | pop ecx |
2288 | clevermous | 716 | jc @f |
3742 | clevermous | 717 | cmp [ebp+NTFS.ntfs_bCanContinue], 0 |
2288 | clevermous | 718 | jz @f |
3742 | clevermous | 719 | sub edx, [ebp+NTFS.ntfs_cur_read] |
2288 | clevermous | 720 | neg edx |
721 | shr edx, 9 |
||
3742 | clevermous | 722 | sub ecx, edx |
723 | mov [ebp+NTFS.ntfs_cur_size], ecx |
||
2288 | clevermous | 724 | jnz .not_in_cur |
725 | @@: |
||
726 | popad |
||
727 | ret |
||
728 | .noattr: |
||
729 | .not_in_cur: |
||
3742 | clevermous | 730 | cmp [ebp+NTFS.ntfs_cur_attr], 0x20 |
2288 | clevermous | 731 | jz @f |
3742 | clevermous | 732 | mov ecx, [ebp+NTFS.ntfs_attr_list] |
2288 | clevermous | 733 | test ecx, ecx |
734 | jnz .lookattr |
||
735 | .ret_is_attr: |
||
3742 | clevermous | 736 | and dword [esp+28], 0 |
737 | cmp [ebp+NTFS.ntfs_attr_offs], 1 ; CF set <=> ntfs_attr_offs == 0 |
||
2288 | clevermous | 738 | popad |
739 | ret |
||
740 | .lookattr: |
||
741 | ; required attribute or required offset was not found in base record; |
||
742 | ; it may be present in auxiliary records; |
||
743 | ; scan $ATTR_LIST |
||
3742 | clevermous | 744 | mov eax, [ebp+NTFS.ntfs_attr_iBaseRecord] |
2288 | clevermous | 745 | cmp eax, -1 |
746 | jz @f |
||
747 | call ntfs_read_file_record |
||
3742 | clevermous | 748 | jc .errret |
749 | or [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
||
2288 | clevermous | 750 | @@: |
3742 | clevermous | 751 | push [ebp+NTFS.ntfs_cur_offs] |
752 | push [ebp+NTFS.ntfs_cur_size] |
||
753 | push [ebp+NTFS.ntfs_cur_read] |
||
754 | push [ebp+NTFS.ntfs_cur_buf] |
||
755 | push dword [ebp+NTFS.ntfs_attr_size] |
||
756 | push dword [ebp+NTFS.ntfs_attr_size+4] |
||
757 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
||
758 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
||
759 | and [ebp+NTFS.ntfs_cur_offs], 0 |
||
760 | mov [ebp+NTFS.ntfs_cur_size], 2 |
||
761 | and [ebp+NTFS.ntfs_cur_read], 0 |
||
762 | lea eax, [ebp+NTFS.ntfs_attrlist_buf] |
||
763 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
2288 | clevermous | 764 | jnz @f |
3742 | clevermous | 765 | lea eax, [ebp+NTFS.ntfs_attrlist_mft_buf] |
2288 | clevermous | 766 | @@: |
3742 | clevermous | 767 | mov [ebp+NTFS.ntfs_cur_buf], eax |
2288 | clevermous | 768 | push eax |
769 | call .doreadattr |
||
770 | pop esi |
||
771 | mov edx, 1 |
||
3742 | clevermous | 772 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
773 | pop dword [ebp+NTFS.ntfs_attr_size] |
||
774 | mov ecx, [ebp+NTFS.ntfs_cur_read] |
||
775 | pop [ebp+NTFS.ntfs_cur_buf] |
||
776 | pop [ebp+NTFS.ntfs_cur_read] |
||
777 | pop [ebp+NTFS.ntfs_cur_size] |
||
778 | pop [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 779 | jc .errret |
780 | or edi, -1 |
||
3742 | clevermous | 781 | lea ecx, [ecx+esi-1Ah] |
2288 | clevermous | 782 | .scanliststart: |
3742 | clevermous | 783 | push ecx |
784 | mov eax, [ebp+NTFS.ntfs_cur_attr] |
||
2288 | clevermous | 785 | .scanlist: |
3742 | clevermous | 786 | cmp esi, [esp] |
2288 | clevermous | 787 | jae .scanlistdone |
788 | cmp eax, [esi] |
||
789 | jz @f |
||
790 | .scanlistcont: |
||
791 | movzx ecx, word [esi+4] |
||
792 | add esi, ecx |
||
793 | jmp .scanlist |
||
794 | @@: |
||
795 | ; ignore named $DATA attributes (aka NTFS streams) |
||
796 | cmp eax, 0x80 |
||
797 | jnz @f |
||
798 | cmp byte [esi+6], 0 |
||
799 | jnz .scanlistcont |
||
800 | @@: |
||
801 | push eax |
||
802 | mov eax, [esi+8] |
||
803 | test eax, eax |
||
804 | jnz .testf |
||
3742 | clevermous | 805 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
806 | and eax, dword [ebp+NTFS.ntfs_attr_size+4] |
||
2288 | clevermous | 807 | cmp eax, -1 |
808 | jnz .testfz |
||
809 | ; if attribute is in auxiliary records, its size is defined only in first |
||
810 | mov eax, [esi+10h] |
||
811 | call ntfs_read_file_record |
||
3742 | clevermous | 812 | jnc @f |
2288 | clevermous | 813 | .errret_pop: |
3742 | clevermous | 814 | pop ecx ecx |
2288 | clevermous | 815 | jmp .errret |
3742 | clevermous | 816 | .errret2_pop: |
817 | xor eax, eax |
||
818 | jmp .errret_pop |
||
2288 | clevermous | 819 | @@: |
3742 | clevermous | 820 | mov eax, [ebp+NTFS.frs_buffer] |
2288 | clevermous | 821 | movzx ecx, word [eax+14h] |
822 | add eax, ecx |
||
3742 | clevermous | 823 | mov ecx, [ebp+NTFS.ntfs_cur_attr] |
2288 | clevermous | 824 | @@: |
825 | cmp dword [eax], -1 |
||
3742 | clevermous | 826 | jz .errret2_pop |
2288 | clevermous | 827 | cmp dword [eax], ecx |
828 | jz @f |
||
829 | .l1: |
||
830 | add eax, [eax+4] |
||
831 | jmp @b |
||
832 | @@: |
||
833 | cmp eax, 0x80 |
||
834 | jnz @f |
||
835 | cmp byte [eax+9], 0 |
||
836 | jnz .l1 |
||
837 | @@: |
||
838 | cmp byte [eax+8], 0 |
||
839 | jnz .sdnores |
||
840 | mov eax, [eax+10h] |
||
3742 | clevermous | 841 | mov dword [ebp+NTFS.ntfs_attr_size], eax |
842 | and dword [ebp+NTFS.ntfs_attr_size+4], 0 |
||
2288 | clevermous | 843 | jmp .testfz |
844 | .sdnores: |
||
845 | mov ecx, [eax+30h] |
||
3742 | clevermous | 846 | mov dword [ebp+NTFS.ntfs_attr_size], ecx |
2288 | clevermous | 847 | mov ecx, [eax+34h] |
3742 | clevermous | 848 | mov dword [ebp+NTFS.ntfs_attr_size+4], ecx |
2288 | clevermous | 849 | .testfz: |
850 | xor eax, eax |
||
851 | .testf: |
||
3742 | clevermous | 852 | imul eax, [ebp+NTFS.sectors_per_cluster] |
853 | cmp eax, [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 854 | pop eax |
855 | ja @f |
||
856 | mov edi, [esi+10h] ; keep previous iRecord |
||
857 | jmp .scanlistcont |
||
858 | @@: |
||
3742 | clevermous | 859 | pop ecx |
2288 | clevermous | 860 | .scanlistfound: |
861 | cmp edi, -1 |
||
862 | jnz @f |
||
863 | popad |
||
864 | ret |
||
865 | @@: |
||
3742 | clevermous | 866 | mov eax, [ebp+NTFS.ntfs_cur_iRecord] |
867 | mov [ebp+NTFS.ntfs_attr_iBaseRecord], eax |
||
2288 | clevermous | 868 | mov eax, edi |
869 | jmp .beginfindattr |
||
870 | .scanlistdone: |
||
3742 | clevermous | 871 | pop ecx |
872 | sub ecx, ebp |
||
873 | sub ecx, NTFS.ntfs_attrlist_buf-1Ah |
||
874 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
2288 | clevermous | 875 | jnz @f |
3742 | clevermous | 876 | sub ecx, NTFS.ntfs_attrlist_mft_buf-NTFS.ntfs_attrlist_buf |
2288 | clevermous | 877 | @@: |
3742 | clevermous | 878 | cmp ecx, 0x400 |
2288 | clevermous | 879 | jnz .scanlistfound |
880 | inc edx |
||
881 | push esi edi |
||
3742 | clevermous | 882 | lea esi, [ebp+NTFS.ntfs_attrlist_buf+0x200] |
883 | lea edi, [ebp+NTFS.ntfs_attrlist_buf] |
||
884 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
2288 | clevermous | 885 | jnz @f |
3742 | clevermous | 886 | lea esi, [ebp+NTFS.ntfs_attrlist_mft_buf+0x200] |
887 | lea edi, [ebp+NTFS.ntfs_attrlist_mft_buf] |
||
2288 | clevermous | 888 | @@: |
889 | mov ecx, 0x200/4 |
||
890 | rep movsd |
||
891 | mov eax, edi |
||
892 | pop edi esi |
||
893 | sub esi, 0x200 |
||
3742 | clevermous | 894 | push [ebp+NTFS.ntfs_cur_offs] |
895 | push [ebp+NTFS.ntfs_cur_size] |
||
896 | push [ebp+NTFS.ntfs_cur_read] |
||
897 | push [ebp+NTFS.ntfs_cur_buf] |
||
898 | push dword [ebp+NTFS.ntfs_attr_size] |
||
899 | push dword [ebp+NTFS.ntfs_attr_size+4] |
||
900 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
||
901 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
||
902 | mov [ebp+NTFS.ntfs_cur_offs], edx |
||
903 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
904 | and [ebp+NTFS.ntfs_cur_read], 0 |
||
905 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
906 | mov ecx, [ebp+NTFS.ntfs_attr_list] |
||
907 | push esi edx edi |
||
2288 | clevermous | 908 | call .doreadattr |
3742 | clevermous | 909 | pop edi edx esi |
910 | mov ecx, [ebp+NTFS.ntfs_cur_read] |
||
911 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
||
912 | pop dword [ebp+NTFS.ntfs_attr_size] |
||
913 | pop [ebp+NTFS.ntfs_cur_buf] |
||
914 | pop [ebp+NTFS.ntfs_cur_read] |
||
915 | pop [ebp+NTFS.ntfs_cur_size] |
||
916 | pop [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 917 | jc .errret |
3742 | clevermous | 918 | lea ecx, [ecx+ebp+NTFS.ntfs_attrlist_buf+0x200-0x1A] |
919 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
2288 | clevermous | 920 | jnz .scanliststart |
3742 | clevermous | 921 | add ecx, NTFS.ntfs_attrlist_mft_buf-NTFS.ntfs_attrlist_buf |
2288 | clevermous | 922 | jmp .scanliststart |
923 | |||
924 | .doreadattr: |
||
3742 | clevermous | 925 | mov [ebp+NTFS.ntfs_bCanContinue], 0 |
2288 | clevermous | 926 | cmp byte [ecx+8], 0 |
927 | jnz .nonresident |
||
928 | mov eax, [ecx+10h] ; length |
||
929 | mov esi, eax |
||
3742 | clevermous | 930 | mov edx, [ebp+NTFS.ntfs_cur_offs] |
2288 | clevermous | 931 | shr eax, 9 |
932 | cmp eax, edx |
||
933 | jb .okret |
||
934 | shl edx, 9 |
||
935 | sub esi, edx |
||
936 | movzx eax, word [ecx+14h] |
||
937 | add edx, eax |
||
938 | add edx, ecx ; edx -> data |
||
3742 | clevermous | 939 | mov eax, [ebp+NTFS.ntfs_cur_size] |
2288 | clevermous | 940 | cmp eax, (0xFFFFFFFF shr 9)+1 |
941 | jbe @f |
||
942 | mov eax, (0xFFFFFFFF shr 9)+1 |
||
943 | @@: |
||
944 | shl eax, 9 |
||
945 | cmp eax, esi |
||
946 | jbe @f |
||
947 | mov eax, esi |
||
948 | @@: |
||
949 | ; eax = length, edx -> data |
||
3742 | clevermous | 950 | mov [ebp+NTFS.ntfs_cur_read], eax |
2288 | clevermous | 951 | mov ecx, eax |
952 | mov eax, edx |
||
3742 | clevermous | 953 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
2288 | clevermous | 954 | call memmove |
3742 | clevermous | 955 | and [ebp+NTFS.ntfs_cur_size], 0 ; CF=0 |
2288 | clevermous | 956 | ret |
957 | .nonresident: |
||
958 | ; Not all auxiliary records contain correct FileSize info |
||
3742 | clevermous | 959 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
960 | mov edx, dword [ebp+NTFS.ntfs_attr_size+4] |
||
2288 | clevermous | 961 | push eax |
962 | and eax, edx |
||
963 | cmp eax, -1 |
||
964 | pop eax |
||
965 | jnz @f |
||
966 | mov eax, [ecx+30h] ; FileSize |
||
967 | mov edx, [ecx+34h] |
||
3742 | clevermous | 968 | mov dword [ebp+NTFS.ntfs_attr_size], eax |
969 | mov dword [ebp+NTFS.ntfs_attr_size+4], edx |
||
2288 | clevermous | 970 | @@: |
971 | add eax, 0x1FF |
||
972 | adc edx, 0 |
||
973 | shrd eax, edx, 9 |
||
3742 | clevermous | 974 | sub eax, [ebp+NTFS.ntfs_cur_offs] |
2288 | clevermous | 975 | ja @f |
976 | ; return with nothing read |
||
3742 | clevermous | 977 | and [ebp+NTFS.ntfs_cur_size], 0 |
2288 | clevermous | 978 | .okret: |
979 | clc |
||
980 | ret |
||
981 | @@: |
||
982 | ; reduce read length |
||
3742 | clevermous | 983 | and [ebp+NTFS.ntfs_cur_tail], 0 |
984 | cmp [ebp+NTFS.ntfs_cur_size], eax |
||
2288 | clevermous | 985 | jb @f |
3742 | clevermous | 986 | mov [ebp+NTFS.ntfs_cur_size], eax |
987 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
||
2288 | clevermous | 988 | and eax, 0x1FF |
3742 | clevermous | 989 | mov [ebp+NTFS.ntfs_cur_tail], eax |
2288 | clevermous | 990 | @@: |
3742 | clevermous | 991 | cmp [ebp+NTFS.ntfs_cur_size], 0 |
2288 | clevermous | 992 | jz .okret |
3742 | clevermous | 993 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
2288 | clevermous | 994 | xor edx, edx |
3742 | clevermous | 995 | div [ebp+NTFS.sectors_per_cluster] |
2288 | clevermous | 996 | sub eax, [ecx+10h] ; first_vbo |
997 | jb .okret |
||
998 | ; eax = cluster, edx = starting sector |
||
5994 | pathoswith | 999 | cmp [ebp+NTFS.ntfs_cur_attr], 0x80 |
1000 | jnz .sys |
||
1001 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
1002 | jz .sys |
||
1003 | push fs_read64_app |
||
1004 | cmp [ebp+NTFS.ntfsWriteAttr], 1 |
||
1005 | jnz @f |
||
1006 | mov dword[esp], fs_write64_app |
||
1007 | jmp @f |
||
1008 | .sys: |
||
1009 | push fs_read64_sys |
||
1010 | @@: |
||
2288 | clevermous | 1011 | sub esp, 10h |
1012 | movzx esi, word [ecx+20h] ; mcb_info_ofs |
||
1013 | add esi, ecx |
||
3742 | clevermous | 1014 | xor edi, edi |
5954 | pathoswith | 1015 | mov [ebp+NTFS.ntfsFragmentCount], 0 |
2288 | clevermous | 1016 | .readloop: |
1017 | call ntfs_decode_mcb_entry |
||
1018 | jnc .break |
||
3742 | clevermous | 1019 | add edi, [esp+8] |
2288 | clevermous | 1020 | sub eax, [esp] |
1021 | jae .readloop |
||
1022 | push ecx |
||
1023 | push eax |
||
1024 | add eax, [esp+8] |
||
3742 | clevermous | 1025 | add eax, edi |
1026 | imul eax, [ebp+NTFS.sectors_per_cluster] |
||
2288 | clevermous | 1027 | add eax, edx |
1028 | pop ecx |
||
1029 | neg ecx |
||
3742 | clevermous | 1030 | imul ecx, [ebp+NTFS.sectors_per_cluster] |
2288 | clevermous | 1031 | sub ecx, edx |
3742 | clevermous | 1032 | cmp ecx, [ebp+NTFS.ntfs_cur_size] |
2288 | clevermous | 1033 | jb @f |
3742 | clevermous | 1034 | mov ecx, [ebp+NTFS.ntfs_cur_size] |
2288 | clevermous | 1035 | @@: |
3742 | clevermous | 1036 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
5954 | pathoswith | 1037 | mov [ebp+NTFS.ntfsLastRead], eax |
1038 | push ecx |
||
1039 | xor edx, edx |
||
5994 | pathoswith | 1040 | call dword[esp+18h] |
5954 | pathoswith | 1041 | pop ecx |
3742 | clevermous | 1042 | test eax, eax |
2288 | clevermous | 1043 | jnz .errread2 |
5954 | pathoswith | 1044 | sub [ebp+NTFS.ntfs_cur_size], ecx |
1045 | add [ebp+NTFS.ntfs_cur_offs], ecx |
||
1046 | shl ecx, 9 |
||
1047 | add [ebp+NTFS.ntfs_cur_read], ecx |
||
1048 | add [ebp+NTFS.ntfs_cur_buf], ecx |
||
1049 | inc [ebp+NTFS.ntfsFragmentCount] |
||
2288 | clevermous | 1050 | pop ecx |
1051 | xor eax, eax |
||
1052 | xor edx, edx |
||
3742 | clevermous | 1053 | cmp [ebp+NTFS.ntfs_cur_size], 0 |
2288 | clevermous | 1054 | jnz .readloop |
5994 | pathoswith | 1055 | add esp, 14h |
3742 | clevermous | 1056 | mov eax, [ebp+NTFS.ntfs_cur_tail] |
2288 | clevermous | 1057 | test eax, eax |
1058 | jz @f |
||
1059 | sub eax, 0x200 |
||
3742 | clevermous | 1060 | add [ebp+NTFS.ntfs_cur_read], eax |
2288 | clevermous | 1061 | @@: |
1062 | clc |
||
1063 | ret |
||
1064 | .errread2: |
||
1065 | pop ecx |
||
5994 | pathoswith | 1066 | add esp, 14h |
2288 | clevermous | 1067 | stc |
1068 | ret |
||
1069 | .break: |
||
5994 | pathoswith | 1070 | add esp, 14h ; CF=0 |
3742 | clevermous | 1071 | mov [ebp+NTFS.ntfs_bCanContinue], 1 |
2288 | clevermous | 1072 | ret |
1073 | |||
1074 | ntfs_read_file_record: |
||
5954 | pathoswith | 1075 | ; in: eax = iRecord |
1076 | ; out: [ebp+NTFS.frs_buffer] = record data |
||
1077 | ; CF=1 -> failed, eax = disk error code, eax=0 -> something with FS |
||
1078 | ; Read attr $DATA of $Mft, starting from eax*[ebp+NTFS.frs_size] |
||
2288 | clevermous | 1079 | push ecx edx |
3742 | clevermous | 1080 | mov ecx, [ebp+NTFS.frs_size] |
2288 | clevermous | 1081 | mul ecx |
1082 | shrd eax, edx, 9 |
||
1083 | shr edx, 9 |
||
3742 | clevermous | 1084 | jnz .errret |
1085 | push [ebp+NTFS.ntfs_attr_iRecord] |
||
1086 | push [ebp+NTFS.ntfs_attr_iBaseRecord] |
||
1087 | push [ebp+NTFS.ntfs_attr_offs] |
||
1088 | push [ebp+NTFS.ntfs_attr_list] |
||
1089 | push dword [ebp+NTFS.ntfs_attr_size+4] |
||
1090 | push dword [ebp+NTFS.ntfs_attr_size] |
||
1091 | push [ebp+NTFS.ntfs_cur_iRecord] |
||
1092 | push [ebp+NTFS.ntfs_cur_attr] |
||
1093 | push [ebp+NTFS.ntfs_cur_offs] |
||
1094 | push [ebp+NTFS.ntfs_cur_size] |
||
1095 | push [ebp+NTFS.ntfs_cur_buf] |
||
1096 | push [ebp+NTFS.ntfs_cur_read] |
||
1097 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 ; $DATA |
||
1098 | and [ebp+NTFS.ntfs_cur_iRecord], 0 ; $Mft |
||
1099 | mov [ebp+NTFS.ntfs_cur_offs], eax |
||
2288 | clevermous | 1100 | shr ecx, 9 |
3742 | clevermous | 1101 | mov [ebp+NTFS.ntfs_cur_size], ecx |
1102 | mov eax, [ebp+NTFS.frs_buffer] |
||
1103 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2288 | clevermous | 1104 | call ntfs_read_attr |
3742 | clevermous | 1105 | mov edx, [ebp+NTFS.ntfs_cur_read] |
1106 | pop [ebp+NTFS.ntfs_cur_read] |
||
1107 | pop [ebp+NTFS.ntfs_cur_buf] |
||
1108 | pop [ebp+NTFS.ntfs_cur_size] |
||
1109 | pop [ebp+NTFS.ntfs_cur_offs] |
||
1110 | pop [ebp+NTFS.ntfs_cur_attr] |
||
1111 | pop [ebp+NTFS.ntfs_cur_iRecord] |
||
1112 | pop dword [ebp+NTFS.ntfs_attr_size] |
||
1113 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
||
1114 | pop [ebp+NTFS.ntfs_attr_list] |
||
1115 | pop [ebp+NTFS.ntfs_attr_offs] |
||
1116 | pop [ebp+NTFS.ntfs_attr_iBaseRecord] |
||
1117 | pop [ebp+NTFS.ntfs_attr_iRecord] |
||
1118 | jc .ret |
||
1119 | cmp edx, [ebp+NTFS.frs_size] |
||
2288 | clevermous | 1120 | jnz .errret |
3742 | clevermous | 1121 | mov eax, [ebp+NTFS.frs_buffer] |
2288 | clevermous | 1122 | cmp dword [eax], 'FILE' |
1123 | jnz .errret |
||
1124 | push ebx |
||
1125 | mov ebx, eax |
||
1126 | call ntfs_restore_usa_frs |
||
1127 | pop ebx |
||
3742 | clevermous | 1128 | jc .errret |
2288 | clevermous | 1129 | .ret: |
3742 | clevermous | 1130 | pop edx ecx |
2288 | clevermous | 1131 | ret |
3742 | clevermous | 1132 | .errret: |
2288 | clevermous | 1133 | pop edx ecx |
1134 | xor eax, eax |
||
3742 | clevermous | 1135 | stc |
2288 | clevermous | 1136 | ret |
1137 | |||
1138 | ntfs_restore_usa_frs: |
||
3742 | clevermous | 1139 | mov eax, [ebp+NTFS.frs_size] |
2288 | clevermous | 1140 | ntfs_restore_usa: |
1141 | pushad |
||
1142 | shr eax, 9 |
||
1143 | mov ecx, eax |
||
1144 | inc eax |
||
1145 | cmp [ebx+6], ax |
||
1146 | jnz .err |
||
1147 | movzx eax, word [ebx+4] |
||
1148 | lea esi, [eax+ebx] |
||
1149 | lodsw |
||
1150 | mov edx, eax |
||
1151 | lea edi, [ebx+0x1FE] |
||
1152 | @@: |
||
1153 | cmp [edi], dx |
||
1154 | jnz .err |
||
1155 | lodsw |
||
1156 | stosw |
||
1157 | add edi, 0x1FE |
||
1158 | loop @b |
||
1159 | popad |
||
1160 | clc |
||
1161 | ret |
||
1162 | .err: |
||
1163 | popad |
||
1164 | stc |
||
1165 | ret |
||
1166 | |||
1167 | ntfs_decode_mcb_entry: |
||
1168 | push eax ecx edi |
||
1169 | lea edi, [esp+16] |
||
1170 | xor eax, eax |
||
1171 | lodsb |
||
1172 | test al, al |
||
1173 | jz .end |
||
1174 | mov ecx, eax |
||
1175 | and ecx, 0xF |
||
1176 | cmp ecx, 8 |
||
1177 | ja .end |
||
1178 | push ecx |
||
1179 | rep movsb |
||
1180 | pop ecx |
||
1181 | sub ecx, 8 |
||
1182 | neg ecx |
||
1183 | cmp byte [esi-1], 80h |
||
1184 | jae .end |
||
1185 | push eax |
||
1186 | xor eax, eax |
||
1187 | rep stosb |
||
1188 | pop ecx |
||
1189 | shr ecx, 4 |
||
1190 | cmp ecx, 8 |
||
1191 | ja .end |
||
1192 | push ecx |
||
1193 | rep movsb |
||
1194 | pop ecx |
||
1195 | sub ecx, 8 |
||
1196 | neg ecx |
||
1197 | cmp byte [esi-1], 80h |
||
1198 | cmc |
||
1199 | sbb eax, eax |
||
1200 | rep stosb |
||
1201 | stc |
||
1202 | .end: |
||
1203 | pop edi ecx eax |
||
1204 | ret |
||
1205 | |||
1206 | unichar_toupper: |
||
1207 | push eax |
||
1208 | call uni2ansi_char |
||
1209 | cmp al, '_' |
||
1210 | jz .unk |
||
1211 | add esp, 4 |
||
1504 | diamond | 1212 | call char_toupper |
1213 | jmp ansi2uni_char |
||
1214 | .unk: |
||
1215 | pop eax |
||
1216 | ret |
||
2288 | clevermous | 1217 | |
1218 | ntfs_find_lfn: |
||
5954 | pathoswith | 1219 | ; in: [esi]+[esp+4] = name |
1220 | ; out: |
||
1221 | ; [ebp+NTFS.ntfs_cur_iRecord] = number of MFT fileRecord |
||
5994 | pathoswith | 1222 | ; eax -> index in the parent index node |
1223 | ; CF=1 -> file not found, eax=0 -> error |
||
3742 | clevermous | 1224 | mov [ebp+NTFS.ntfs_cur_iRecord], 5 ; start parse from root cluster |
2288 | clevermous | 1225 | .doit2: |
3742 | clevermous | 1226 | mov [ebp+NTFS.ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1227 | and [ebp+NTFS.ntfs_cur_offs], 0 |
||
1228 | mov eax, [ebp+NTFS.cur_index_size] |
||
1229 | mov [ebp+NTFS.ntfs_cur_size], eax |
||
1230 | mov eax, [ebp+NTFS.cur_index_buf] |
||
1231 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2288 | clevermous | 1232 | call ntfs_read_attr |
5994 | pathoswith | 1233 | mov eax, 0 |
2288 | clevermous | 1234 | jnc @f |
1235 | .ret: |
||
3742 | clevermous | 1236 | ret 4 |
2288 | clevermous | 1237 | @@: |
3742 | clevermous | 1238 | cmp [ebp+NTFS.ntfs_cur_read], 0x20 |
2288 | clevermous | 1239 | jc .ret |
1240 | pushad |
||
3742 | clevermous | 1241 | mov esi, [ebp+NTFS.cur_index_buf] |
2288 | clevermous | 1242 | mov eax, [esi+14h] |
1243 | add eax, 10h |
||
3742 | clevermous | 1244 | cmp [ebp+NTFS.ntfs_cur_read], eax |
2288 | clevermous | 1245 | jae .readok1 |
1246 | add eax, 1FFh |
||
1247 | shr eax, 9 |
||
3742 | clevermous | 1248 | cmp eax, [ebp+NTFS.cur_index_size] |
2288 | clevermous | 1249 | ja @f |
1250 | .stc_ret: |
||
1251 | popad |
||
1252 | stc |
||
3742 | clevermous | 1253 | ret 4 |
2288 | clevermous | 1254 | @@: |
1255 | ; reallocate |
||
1256 | push eax |
||
5954 | pathoswith | 1257 | stdcall kernel_free, [ebp+NTFS.cur_index_buf] |
2288 | clevermous | 1258 | pop eax |
3742 | clevermous | 1259 | mov [ebp+NTFS.cur_index_size], eax |
5954 | pathoswith | 1260 | stdcall kernel_alloc, eax |
2288 | clevermous | 1261 | test eax, eax |
1262 | jnz @f |
||
3742 | clevermous | 1263 | and [ebp+NTFS.cur_index_size], 0 |
1264 | and [ebp+NTFS.cur_index_buf], 0 |
||
2288 | clevermous | 1265 | jmp .stc_ret |
1266 | @@: |
||
3742 | clevermous | 1267 | mov [ebp+NTFS.cur_index_buf], eax |
2288 | clevermous | 1268 | popad |
1269 | jmp .doit2 |
||
1270 | .readok1: |
||
3742 | clevermous | 1271 | mov edx, [esi+8] ; subnode_size |
1272 | shr edx, 9 |
||
1273 | cmp edx, [ebp+NTFS.cur_index_size] |
||
2288 | clevermous | 1274 | jbe .ok2 |
3742 | clevermous | 1275 | push esi edx |
5954 | pathoswith | 1276 | stdcall kernel_alloc, edx |
3742 | clevermous | 1277 | pop edx esi |
2288 | clevermous | 1278 | test eax, eax |
1279 | jz .stc_ret |
||
1280 | mov edi, eax |
||
3742 | clevermous | 1281 | mov ecx, [ebp+NTFS.cur_index_size] |
2288 | clevermous | 1282 | shl ecx, 9-2 |
1283 | rep movsd |
||
1284 | mov esi, eax |
||
3742 | clevermous | 1285 | mov [ebp+NTFS.cur_index_size], edx |
1286 | push esi edx |
||
5954 | pathoswith | 1287 | stdcall kernel_free, [ebp+NTFS.cur_index_buf] |
3742 | clevermous | 1288 | pop edx esi |
1289 | mov [ebp+NTFS.cur_index_buf], esi |
||
2288 | clevermous | 1290 | .ok2: |
1291 | add esi, 10h |
||
1292 | mov edi, [esp+4] |
||
3742 | clevermous | 1293 | ; edi -> name, esi -> current index data, edx = subnode size |
2288 | clevermous | 1294 | .scanloop: |
1295 | add esi, [esi] |
||
1296 | .scanloopint: |
||
1297 | test byte [esi+0Ch], 2 |
||
1298 | jnz .subnode |
||
1299 | push esi |
||
1300 | add esi, 0x52 |
||
1301 | movzx ecx, byte [esi-2] |
||
1302 | push edi |
||
1303 | @@: |
||
1304 | lodsw |
||
1305 | call unichar_toupper |
||
1306 | push eax |
||
1307 | mov al, [edi] |
||
1308 | inc edi |
||
1309 | cmp al, '/' |
||
1310 | jz .slash |
||
1311 | call char_toupper |
||
1312 | call ansi2uni_char |
||
1313 | cmp ax, [esp] |
||
1314 | pop eax |
||
1315 | loopz @b |
||
1316 | jz .found |
||
1317 | pop edi |
||
1318 | pop esi |
||
1319 | jb .subnode |
||
1320 | .scanloopcont: |
||
1321 | movzx eax, word [esi+8] |
||
1322 | add esi, eax |
||
1323 | jmp .scanloopint |
||
1324 | .slash: |
||
1325 | pop eax |
||
1326 | pop edi |
||
1327 | pop esi |
||
1328 | .subnode: |
||
1329 | test byte [esi+0Ch], 1 |
||
1330 | jz .notfound |
||
1331 | movzx eax, word [esi+8] |
||
1332 | mov eax, [esi+eax-8] |
||
3742 | clevermous | 1333 | imul eax, [ebp+NTFS.sectors_per_cluster] |
1334 | mov [ebp+NTFS.ntfs_cur_offs], eax |
||
1335 | mov [ebp+NTFS.ntfs_cur_attr], 0xA0 ; $INDEX_ALLOCATION |
||
1336 | mov [ebp+NTFS.ntfs_cur_size], edx |
||
1337 | mov eax, [ebp+NTFS.cur_index_buf] |
||
2288 | clevermous | 1338 | mov esi, eax |
3742 | clevermous | 1339 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1340 | push edx |
||
2288 | clevermous | 1341 | call ntfs_read_attr |
3742 | clevermous | 1342 | pop edx |
1343 | mov eax, edx |
||
2288 | clevermous | 1344 | shl eax, 9 |
3742 | clevermous | 1345 | cmp [ebp+NTFS.ntfs_cur_read], eax |
5954 | pathoswith | 1346 | jnz .err |
2288 | clevermous | 1347 | cmp dword [esi], 'INDX' |
5954 | pathoswith | 1348 | jnz .err |
1349 | mov [ebp+NTFS.ntfs_cur_buf], esi |
||
2288 | clevermous | 1350 | mov ebx, esi |
1351 | call ntfs_restore_usa |
||
5954 | pathoswith | 1352 | jc .err |
2288 | clevermous | 1353 | add esi, 0x18 |
1354 | jmp .scanloop |
||
1355 | .notfound: |
||
5954 | pathoswith | 1356 | mov [esp+1Ch], esi |
1357 | .err: |
||
2288 | clevermous | 1358 | popad |
1359 | stc |
||
3742 | clevermous | 1360 | ret 4 |
2288 | clevermous | 1361 | .found: |
1362 | cmp byte [edi], 0 |
||
1363 | jz .done |
||
1364 | cmp byte [edi], '/' |
||
1365 | jz .next |
||
1366 | pop edi |
||
1367 | pop esi |
||
1368 | jmp .scanloopcont |
||
1369 | .done: |
||
1370 | .next: |
||
1371 | pop esi |
||
1372 | pop esi |
||
1373 | mov eax, [esi] |
||
3742 | clevermous | 1374 | mov [ebp+NTFS.ntfs_cur_iRecord], eax |
2288 | clevermous | 1375 | mov [esp+1Ch], esi |
1376 | mov [esp+4], edi |
||
1377 | popad |
||
1378 | inc esi |
||
1379 | cmp byte [esi-1], 0 |
||
1380 | jnz .doit2 |
||
3742 | clevermous | 1381 | cmp dword [esp+4], 0 |
2288 | clevermous | 1382 | jz @f |
3742 | clevermous | 1383 | mov esi, [esp+4] |
1384 | mov dword [esp+4], 0 |
||
2288 | clevermous | 1385 | jmp .doit2 |
1386 | @@: |
||
3742 | clevermous | 1387 | ret 4 |
2288 | clevermous | 1388 | |
1389 | ;---------------------------------------------------------------- |
||
5954 | pathoswith | 1390 | ntfs_ReadFile: |
2288 | clevermous | 1391 | cmp byte [esi], 0 |
1392 | jnz @f |
||
1393 | or ebx, -1 |
||
3598 | clevermous | 1394 | movi eax, ERROR_ACCESS_DENIED |
2288 | clevermous | 1395 | ret |
1396 | @@: |
||
3742 | clevermous | 1397 | call ntfs_lock |
1398 | stdcall ntfs_find_lfn, [esp+4] |
||
2288 | clevermous | 1399 | jnc .found |
3742 | clevermous | 1400 | call ntfs_unlock |
2288 | clevermous | 1401 | or ebx, -1 |
3598 | clevermous | 1402 | movi eax, ERROR_FILE_NOT_FOUND |
2288 | clevermous | 1403 | ret |
1404 | .found: |
||
3742 | clevermous | 1405 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 ; $DATA |
1406 | and [ebp+NTFS.ntfs_cur_offs], 0 |
||
1407 | and [ebp+NTFS.ntfs_cur_size], 0 |
||
2288 | clevermous | 1408 | call ntfs_read_attr |
1409 | jnc @f |
||
3742 | clevermous | 1410 | call ntfs_unlock |
2288 | clevermous | 1411 | or ebx, -1 |
3598 | clevermous | 1412 | movi eax, ERROR_ACCESS_DENIED |
2288 | clevermous | 1413 | ret |
1414 | @@: |
||
1415 | pushad |
||
1416 | and dword [esp+10h], 0 |
||
1417 | xor eax, eax |
||
3742 | clevermous | 1418 | cmp dword [ebx+8], 0x200 |
2288 | clevermous | 1419 | jb @f |
1420 | .eof0: |
||
1421 | popad |
||
1422 | xor ebx, ebx |
||
1423 | .eof: |
||
5954 | pathoswith | 1424 | push ERROR_END_OF_FILE |
3742 | clevermous | 1425 | call ntfs_unlock |
1426 | pop eax |
||
2288 | clevermous | 1427 | ret |
1428 | @@: |
||
3742 | clevermous | 1429 | mov ecx, [ebx+12] |
1430 | mov edx, [ebx+16] |
||
1431 | mov eax, [ebx+4] |
||
2288 | clevermous | 1432 | test eax, 0x1FF |
1433 | jz .alignedstart |
||
1434 | push edx |
||
3742 | clevermous | 1435 | mov edx, [ebx+8] |
2288 | clevermous | 1436 | shrd eax, edx, 9 |
1400 | turbanoff | 1437 | pop edx |
3742 | clevermous | 1438 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1439 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
1440 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
||
1441 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2288 | clevermous | 1442 | call ntfs_read_attr.continue |
3742 | clevermous | 1443 | mov eax, [ebx+4] |
2288 | clevermous | 1444 | and eax, 0x1FF |
3742 | clevermous | 1445 | lea esi, [ebp+NTFS.ntfs_bitmap_buf+eax] |
1446 | sub eax, [ebp+NTFS.ntfs_cur_read] |
||
2288 | clevermous | 1447 | jae .eof0 |
1448 | neg eax |
||
1449 | push ecx |
||
1450 | cmp ecx, eax |
||
1451 | jb @f |
||
1452 | mov ecx, eax |
||
1453 | @@: |
||
1454 | mov [esp+10h+4], ecx |
||
1455 | mov edi, edx |
||
1456 | rep movsb |
||
1457 | mov edx, edi |
||
1458 | pop ecx |
||
1459 | sub ecx, [esp+10h] |
||
1460 | jnz @f |
||
1461 | .retok: |
||
1462 | popad |
||
3742 | clevermous | 1463 | call ntfs_unlock |
2288 | clevermous | 1464 | xor eax, eax |
1400 | turbanoff | 1465 | ret |
2288 | clevermous | 1466 | @@: |
3742 | clevermous | 1467 | cmp [ebp+NTFS.ntfs_cur_read], 0x200 |
2288 | clevermous | 1468 | jz .alignedstart |
1469 | .eof_ebx: |
||
1470 | popad |
||
1471 | jmp .eof |
||
1472 | .alignedstart: |
||
3742 | clevermous | 1473 | mov eax, [ebx+4] |
2288 | clevermous | 1474 | push edx |
3742 | clevermous | 1475 | mov edx, [ebx+8] |
2288 | clevermous | 1476 | add eax, 511 |
1477 | adc edx, 0 |
||
1478 | shrd eax, edx, 9 |
||
1479 | pop edx |
||
3742 | clevermous | 1480 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1481 | mov [ebp+NTFS.ntfs_cur_buf], edx |
||
2288 | clevermous | 1482 | mov eax, ecx |
1483 | shr eax, 9 |
||
3742 | clevermous | 1484 | mov [ebp+NTFS.ntfs_cur_size], eax |
1485 | add eax, [ebp+NTFS.ntfs_cur_offs] |
||
2288 | clevermous | 1486 | push eax |
1487 | call ntfs_read_attr.continue |
||
3742 | clevermous | 1488 | pop [ebp+NTFS.ntfs_cur_offs] |
1489 | mov eax, [ebp+NTFS.ntfs_cur_read] |
||
2288 | clevermous | 1490 | add [esp+10h], eax |
1491 | mov eax, ecx |
||
1492 | and eax, not 0x1FF |
||
3742 | clevermous | 1493 | cmp [ebp+NTFS.ntfs_cur_read], eax |
2288 | clevermous | 1494 | jnz .eof_ebx |
1495 | and ecx, 0x1FF |
||
1496 | jz .retok |
||
3742 | clevermous | 1497 | add edx, [ebp+NTFS.ntfs_cur_read] |
1498 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
1499 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
||
1500 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2288 | clevermous | 1501 | call ntfs_read_attr.continue |
3742 | clevermous | 1502 | cmp [ebp+NTFS.ntfs_cur_read], ecx |
2288 | clevermous | 1503 | jb @f |
3742 | clevermous | 1504 | mov [ebp+NTFS.ntfs_cur_read], ecx |
2288 | clevermous | 1505 | @@: |
3742 | clevermous | 1506 | xchg ecx, [ebp+NTFS.ntfs_cur_read] |
2288 | clevermous | 1507 | push ecx |
1508 | mov edi, edx |
||
3742 | clevermous | 1509 | lea esi, [ebp+NTFS.ntfs_bitmap_buf] |
2288 | clevermous | 1510 | add [esp+10h+4], ecx |
1511 | rep movsb |
||
1512 | pop ecx |
||
1513 | xor eax, eax |
||
3742 | clevermous | 1514 | cmp ecx, [ebp+NTFS.ntfs_cur_read] |
2288 | clevermous | 1515 | jz @f |
1516 | mov al, ERROR_END_OF_FILE |
||
1517 | @@: |
||
1518 | mov [esp+1Ch], eax |
||
3742 | clevermous | 1519 | call ntfs_unlock |
2288 | clevermous | 1520 | popad |
1521 | ret |
||
1400 | turbanoff | 1522 | |
2288 | clevermous | 1523 | ;---------------------------------------------------------------- |
3742 | clevermous | 1524 | ntfs_ReadFolder: |
1525 | call ntfs_lock |
||
2288 | clevermous | 1526 | mov eax, 5 ; root cluster |
1527 | cmp byte [esi], 0 |
||
1528 | jz .doit |
||
3742 | clevermous | 1529 | stdcall ntfs_find_lfn, [esp+4] |
2288 | clevermous | 1530 | jnc .doit2 |
1531 | .notfound: |
||
1532 | or ebx, -1 |
||
1533 | push ERROR_FILE_NOT_FOUND |
||
1534 | .pop_ret: |
||
3742 | clevermous | 1535 | call ntfs_unlock |
2288 | clevermous | 1536 | pop eax |
1537 | ret |
||
1538 | .doit: |
||
3742 | clevermous | 1539 | mov [ebp+NTFS.ntfs_cur_iRecord], eax |
2288 | clevermous | 1540 | .doit2: |
3742 | clevermous | 1541 | mov [ebp+NTFS.ntfs_cur_attr], 0x10 ; $STANDARD_INFORMATION |
1542 | and [ebp+NTFS.ntfs_cur_offs], 0 |
||
1543 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
1544 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
||
1545 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2288 | clevermous | 1546 | call ntfs_read_attr |
1547 | jc .notfound |
||
3742 | clevermous | 1548 | mov [ebp+NTFS.ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1549 | and [ebp+NTFS.ntfs_cur_offs], 0 |
||
1550 | mov eax, [ebp+NTFS.cur_index_size] |
||
1551 | mov [ebp+NTFS.ntfs_cur_size], eax |
||
1552 | mov eax, [ebp+NTFS.cur_index_buf] |
||
1553 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2288 | clevermous | 1554 | call ntfs_read_attr |
1555 | jnc .ok |
||
3742 | clevermous | 1556 | test eax, eax |
2288 | clevermous | 1557 | jz .notfound |
1558 | or ebx, -1 |
||
5994 | pathoswith | 1559 | push ERROR_DEVICE |
2288 | clevermous | 1560 | jmp .pop_ret |
1561 | .ok: |
||
3742 | clevermous | 1562 | cmp [ebp+NTFS.ntfs_cur_read], 0x20 |
2288 | clevermous | 1563 | jae @f |
1564 | or ebx, -1 |
||
1565 | .fserr: |
||
1566 | push ERROR_FAT_TABLE |
||
1567 | jmp .pop_ret |
||
1568 | @@: |
||
1569 | pushad |
||
3742 | clevermous | 1570 | mov esi, [ebp+NTFS.cur_index_buf] |
2288 | clevermous | 1571 | mov eax, [esi+14h] |
1572 | add eax, 10h |
||
3742 | clevermous | 1573 | cmp [ebp+NTFS.ntfs_cur_read], eax |
2288 | clevermous | 1574 | jae .readok1 |
1575 | add eax, 1FFh |
||
1576 | shr eax, 9 |
||
3742 | clevermous | 1577 | cmp eax, [ebp+NTFS.cur_index_size] |
2288 | clevermous | 1578 | ja @f |
1579 | popad |
||
1580 | jmp .fserr |
||
1581 | @@: |
||
1582 | ; reallocate |
||
1583 | push eax |
||
5954 | pathoswith | 1584 | stdcall kernel_free, [ebp+NTFS.cur_index_buf] |
2288 | clevermous | 1585 | pop eax |
3742 | clevermous | 1586 | mov [ebp+NTFS.cur_index_size], eax |
5954 | pathoswith | 1587 | stdcall kernel_alloc, eax |
2288 | clevermous | 1588 | test eax, eax |
1589 | jnz @f |
||
3742 | clevermous | 1590 | and [ebp+NTFS.cur_index_size], 0 |
1591 | and [ebp+NTFS.cur_index_buf], 0 |
||
2288 | clevermous | 1592 | .nomem: |
3742 | clevermous | 1593 | call ntfs_unlock |
2288 | clevermous | 1594 | popad |
1595 | or ebx, -1 |
||
5994 | pathoswith | 1596 | movi eax, ERROR_OUT_OF_MEMORY |
2288 | clevermous | 1597 | ret |
1598 | @@: |
||
3742 | clevermous | 1599 | mov [ebp+NTFS.cur_index_buf], eax |
2288 | clevermous | 1600 | popad |
1601 | jmp .doit2 |
||
1602 | .readok1: |
||
3742 | clevermous | 1603 | mov edx, [esi+8] ; subnode_size |
1604 | shr edx, 9 |
||
1605 | mov [ebp+NTFS.cur_subnode_size], edx |
||
1606 | cmp edx, [ebp+NTFS.cur_index_size] |
||
2288 | clevermous | 1607 | jbe .ok2 |
3742 | clevermous | 1608 | push esi edx |
5954 | pathoswith | 1609 | stdcall kernel_alloc, edx |
3742 | clevermous | 1610 | pop edx esi |
2288 | clevermous | 1611 | test eax, eax |
1612 | jz .nomem |
||
1613 | mov edi, eax |
||
3742 | clevermous | 1614 | mov ecx, [ebp+NTFS.cur_index_size] |
2288 | clevermous | 1615 | shl ecx, 9-2 |
1616 | rep movsd |
||
1617 | mov esi, eax |
||
3742 | clevermous | 1618 | mov [ebp+NTFS.cur_index_size], edx |
5954 | pathoswith | 1619 | stdcall kernel_free, [ebp+NTFS.cur_index_buf] |
3742 | clevermous | 1620 | mov [ebp+NTFS.cur_index_buf], esi |
2288 | clevermous | 1621 | .ok2: |
1622 | add esi, 10h |
||
3742 | clevermous | 1623 | mov edx, [ebx+16] |
1624 | push dword [ebx+8] ; read ANSI/UNICODE name |
||
2288 | clevermous | 1625 | ; init header |
1626 | mov edi, edx |
||
1627 | mov ecx, 32/4 |
||
1628 | xor eax, eax |
||
1629 | rep stosd |
||
1630 | mov byte [edx], 1 ; version |
||
3742 | clevermous | 1631 | mov ecx, [ebx+12] |
1632 | mov ebx, [ebx+4] |
||
2288 | clevermous | 1633 | push edx |
1634 | mov edx, esp |
||
3742 | clevermous | 1635 | ; edi -> BDFE, esi -> current index data, ebx = first wanted block, |
2288 | clevermous | 1636 | ; ecx = number of blocks to read |
1637 | ; edx -> parameters block: dd |
||
3742 | clevermous | 1638 | cmp [ebp+NTFS.ntfs_cur_iRecord], 5 |
2288 | clevermous | 1639 | jz .skip_specials |
1640 | ; dot and dotdot entries |
||
1641 | push esi |
||
1642 | xor esi, esi |
||
1643 | call .add_special_entry |
||
1644 | inc esi |
||
1645 | call .add_special_entry |
||
1646 | pop esi |
||
1647 | .skip_specials: |
||
1648 | ; at first, dump index root |
||
1649 | add esi, [esi] |
||
1650 | .dump_root: |
||
1651 | test byte [esi+0Ch], 2 |
||
1652 | jnz .dump_root_done |
||
1653 | call .add_entry |
||
1654 | movzx eax, word [esi+8] |
||
1655 | add esi, eax |
||
1656 | jmp .dump_root |
||
1657 | .dump_root_done: |
||
1658 | ; now dump all subnodes |
||
1659 | push ecx edi |
||
3742 | clevermous | 1660 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
1661 | mov [ebp+NTFS.ntfs_cur_buf], edi |
||
2288 | clevermous | 1662 | mov ecx, 0x400/4 |
1663 | xor eax, eax |
||
1664 | rep stosd |
||
3742 | clevermous | 1665 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 ; $BITMAP |
1666 | and [ebp+NTFS.ntfs_cur_offs], 0 |
||
1667 | mov [ebp+NTFS.ntfs_cur_size], 2 |
||
2288 | clevermous | 1668 | call ntfs_read_attr |
1669 | pop edi ecx |
||
1670 | push 0 ; save offset in $BITMAP attribute |
||
3742 | clevermous | 1671 | and [ebp+NTFS.ntfs_cur_offs], 0 |
2288 | clevermous | 1672 | .dumploop: |
3742 | clevermous | 1673 | mov [ebp+NTFS.ntfs_cur_attr], 0xA0 |
1674 | mov eax, [ebp+NTFS.cur_subnode_size] |
||
1675 | mov [ebp+NTFS.ntfs_cur_size], eax |
||
1676 | mov eax, [ebp+NTFS.cur_index_buf] |
||
2288 | clevermous | 1677 | mov esi, eax |
3742 | clevermous | 1678 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1679 | push [ebp+NTFS.ntfs_cur_offs] |
||
1680 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
||
1681 | imul eax, [ebp+NTFS.cur_subnode_size] |
||
1682 | mov [ebp+NTFS.ntfs_cur_offs], eax |
||
2288 | clevermous | 1683 | call ntfs_read_attr |
3742 | clevermous | 1684 | pop [ebp+NTFS.ntfs_cur_offs] |
1685 | mov eax, [ebp+NTFS.cur_subnode_size] |
||
2288 | clevermous | 1686 | shl eax, 9 |
3742 | clevermous | 1687 | cmp [ebp+NTFS.ntfs_cur_read], eax |
2288 | clevermous | 1688 | jnz .done |
1689 | push eax |
||
3742 | clevermous | 1690 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
2288 | clevermous | 1691 | and eax, 0x400*8-1 |
3742 | clevermous | 1692 | bt dword [ebp+NTFS.ntfs_bitmap_buf], eax |
2288 | clevermous | 1693 | pop eax |
1694 | jnc .dump_subnode_done |
||
1695 | cmp dword [esi], 'INDX' |
||
1696 | jnz .dump_subnode_done |
||
1697 | push ebx |
||
1698 | mov ebx, esi |
||
1699 | call ntfs_restore_usa |
||
1700 | pop ebx |
||
1701 | jc .dump_subnode_done |
||
1702 | add esi, 0x18 |
||
1703 | add esi, [esi] |
||
1704 | .dump_subnode: |
||
1705 | test byte [esi+0Ch], 2 |
||
1706 | jnz .dump_subnode_done |
||
1707 | call .add_entry |
||
1708 | movzx eax, word [esi+8] |
||
1709 | add esi, eax |
||
1710 | jmp .dump_subnode |
||
1711 | .dump_subnode_done: |
||
3742 | clevermous | 1712 | inc [ebp+NTFS.ntfs_cur_offs] |
1713 | test [ebp+NTFS.ntfs_cur_offs], 0x400*8-1 |
||
2288 | clevermous | 1714 | jnz .dumploop |
3742 | clevermous | 1715 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 |
2288 | clevermous | 1716 | push ecx edi |
3742 | clevermous | 1717 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
1718 | mov [ebp+NTFS.ntfs_cur_buf], edi |
||
2288 | clevermous | 1719 | mov ecx, 0x400/4 |
1720 | xor eax, eax |
||
1721 | rep stosd |
||
1722 | pop edi ecx |
||
1723 | pop eax |
||
3742 | clevermous | 1724 | push [ebp+NTFS.ntfs_cur_offs] |
2288 | clevermous | 1725 | inc eax |
3742 | clevermous | 1726 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1727 | mov [ebp+NTFS.ntfs_cur_size], 2 |
||
2288 | clevermous | 1728 | push eax |
1729 | call ntfs_read_attr |
||
1730 | pop eax |
||
3742 | clevermous | 1731 | pop [ebp+NTFS.ntfs_cur_offs] |
2288 | clevermous | 1732 | push eax |
1733 | jmp .dumploop |
||
1734 | .done: |
||
1735 | pop eax |
||
1736 | pop edx |
||
1737 | mov ebx, [edx+4] |
||
1738 | pop edx |
||
1739 | xor eax, eax |
||
1740 | dec ecx |
||
1741 | js @f |
||
1742 | mov al, ERROR_END_OF_FILE |
||
1743 | @@: |
||
1744 | mov [esp+1Ch], eax |
||
1745 | mov [esp+10h], ebx |
||
3742 | clevermous | 1746 | call ntfs_unlock |
2288 | clevermous | 1747 | popad |
1748 | ret |
||
1749 | |||
1750 | .add_special_entry: |
||
1751 | mov eax, [edx] |
||
1752 | inc dword [eax+8] ; new file found |
||
1753 | dec ebx |
||
1754 | jns .ret |
||
1755 | dec ecx |
||
1756 | js .ret |
||
1757 | inc dword [eax+4] ; new file block copied |
||
1758 | mov eax, [edx+4] |
||
1759 | mov [edi+4], eax |
||
1760 | ; mov eax, dword [ntfs_bitmap_buf+0x20] |
||
1761 | ; or al, 0x10 |
||
1762 | mov eax, 0x10 |
||
1763 | stosd |
||
1764 | scasd |
||
1765 | push edx |
||
3742 | clevermous | 1766 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf] |
1767 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+4] |
||
2288 | clevermous | 1768 | call ntfs_datetime_to_bdfe |
3742 | clevermous | 1769 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf+0x18] |
1770 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+0x1C] |
||
2288 | clevermous | 1771 | call ntfs_datetime_to_bdfe |
3742 | clevermous | 1772 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf+8] |
1773 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+0xC] |
||
2288 | clevermous | 1774 | call ntfs_datetime_to_bdfe |
1775 | pop edx |
||
1776 | xor eax, eax |
||
1777 | stosd |
||
1778 | stosd |
||
1779 | mov al, '.' |
||
1780 | push edi ecx |
||
1781 | lea ecx, [esi+1] |
||
1782 | test byte [edi-0x24], 1 |
||
1783 | jz @f |
||
1784 | rep stosw |
||
1785 | pop ecx |
||
1786 | xor eax, eax |
||
1787 | stosw |
||
1788 | pop edi |
||
1789 | add edi, 520 |
||
1790 | ret |
||
1791 | @@: |
||
1792 | rep stosb |
||
1793 | pop ecx |
||
1794 | xor eax, eax |
||
1795 | stosb |
||
1796 | pop edi |
||
1797 | add edi, 264 |
||
1798 | .ret: |
||
1799 | ret |
||
1800 | |||
1801 | .add_entry: |
||
1802 | ; do not return DOS 8.3 names |
||
1803 | cmp byte [esi+0x51], 2 |
||
1804 | jz .ret |
||
1805 | ; do not return system files |
||
1806 | ; ... note that there will be no bad effects if system files also were reported ... |
||
1807 | cmp dword [esi], 0x10 |
||
1808 | jb .ret |
||
1809 | mov eax, [edx] |
||
1810 | inc dword [eax+8] ; new file found |
||
1811 | dec ebx |
||
1812 | jns .ret |
||
1813 | dec ecx |
||
1814 | js .ret |
||
1815 | inc dword [eax+4] ; new file block copied |
||
1816 | mov eax, [edx+4] ; flags |
||
1817 | call ntfs_direntry_to_bdfe |
||
1818 | push ecx esi edi |
||
1819 | movzx ecx, byte [esi+0x50] |
||
1820 | add esi, 0x52 |
||
1821 | test byte [edi-0x24], 1 |
||
1822 | jz .ansi |
||
1823 | shr ecx, 1 |
||
1824 | rep movsd |
||
1825 | adc ecx, ecx |
||
1826 | rep movsw |
||
1827 | and word [edi], 0 |
||
1828 | pop edi |
||
1829 | add edi, 520 |
||
1830 | pop esi ecx |
||
1831 | ret |
||
1832 | .ansi: |
||
1833 | jecxz .skip |
||
1834 | @@: |
||
1835 | lodsw |
||
1836 | call uni2ansi_char |
||
1837 | stosb |
||
1838 | loop @b |
||
1839 | .skip: |
||
1840 | xor al, al |
||
1841 | stosb |
||
1842 | pop edi |
||
1843 | add edi, 264 |
||
1844 | pop esi ecx |
||
1845 | ret |
||
1846 | |||
1847 | ntfs_direntry_to_bdfe: |
||
1848 | mov [edi+4], eax ; ANSI/UNICODE name |
||
1849 | mov eax, [esi+48h] |
||
1850 | test eax, 0x10000000 |
||
1851 | jz @f |
||
1852 | and eax, not 0x10000000 |
||
1853 | or al, 0x10 |
||
1854 | @@: |
||
1855 | stosd |
||
1856 | scasd |
||
1857 | push edx |
||
1858 | mov eax, [esi+0x18] |
||
1859 | mov edx, [esi+0x1C] |
||
1860 | call ntfs_datetime_to_bdfe |
||
1861 | mov eax, [esi+0x30] |
||
1862 | mov edx, [esi+0x34] |
||
1863 | call ntfs_datetime_to_bdfe |
||
1864 | mov eax, [esi+0x20] |
||
1865 | mov edx, [esi+0x24] |
||
1866 | call ntfs_datetime_to_bdfe |
||
1867 | pop edx |
||
1868 | mov eax, [esi+0x40] |
||
1869 | stosd |
||
1870 | mov eax, [esi+0x44] |
||
1871 | stosd |
||
1872 | ret |
||
1873 | |||
1874 | iglobal |
||
1875 | _24 dd 24 |
||
1876 | _60 dd 60 |
||
1877 | _10000000 dd 10000000 |
||
1878 | days400year dd 365*400+100-4+1 |
||
1879 | days100year dd 365*100+25-1 |
||
1880 | days4year dd 365*4+1 |
||
1881 | days1year dd 365 |
||
5954 | pathoswith | 1882 | months dd 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1883 | months2 dd 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
||
2288 | clevermous | 1884 | _400 dd 400 |
1885 | _100 dd 100 |
||
1886 | endg |
||
1887 | |||
1888 | ntfs_datetime_to_bdfe: |
||
1889 | ; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC |
||
1890 | push eax |
||
1891 | mov eax, edx |
||
1892 | xor edx, edx |
||
1893 | div [_10000000] |
||
1894 | xchg eax, [esp] |
||
1895 | div [_10000000] |
||
1896 | pop edx |
||
1897 | .sec: |
||
1898 | ; edx:eax = number of seconds since January 1, 1601 |
||
1899 | push eax |
||
1900 | mov eax, edx |
||
1901 | xor edx, edx |
||
1902 | div [_60] |
||
1903 | xchg eax, [esp] |
||
1904 | div [_60] |
||
1905 | mov [edi], dl |
||
1906 | pop edx |
||
1907 | ; edx:eax = number of minutes |
||
1908 | div [_60] |
||
1909 | mov [edi+1], dl |
||
1910 | ; eax = number of hours (note that 2^64/(10^7*60*60) < 2^32) |
||
1911 | xor edx, edx |
||
1912 | div [_24] |
||
1913 | mov [edi+2], dl |
||
1914 | mov [edi+3], byte 0 |
||
1915 | ; eax = number of days since January 1, 1601 |
||
1916 | xor edx, edx |
||
1917 | div [days400year] |
||
1918 | imul eax, 400 |
||
1919 | add eax, 1601 |
||
1920 | mov [edi+6], ax |
||
1921 | mov eax, edx |
||
1922 | xor edx, edx |
||
1923 | div [days100year] |
||
1924 | cmp al, 4 |
||
1925 | jnz @f |
||
1926 | dec eax |
||
1927 | add edx, [days100year] |
||
1928 | @@: |
||
1929 | imul eax, 100 |
||
1930 | add [edi+6], ax |
||
1931 | mov eax, edx |
||
1932 | xor edx, edx |
||
1933 | div [days4year] |
||
1934 | shl eax, 2 |
||
1935 | add [edi+6], ax |
||
1936 | mov eax, edx |
||
1937 | xor edx, edx |
||
1938 | div [days1year] |
||
1939 | cmp al, 4 |
||
1940 | jnz @f |
||
1941 | dec eax |
||
1942 | add edx, [days1year] |
||
1943 | @@: |
||
1944 | add [edi+6], ax |
||
1945 | push esi edx |
||
1946 | mov esi, months |
||
1947 | movzx eax, word [edi+6] |
||
1948 | test al, 3 |
||
1949 | jnz .noleap |
||
1950 | xor edx, edx |
||
1951 | push eax |
||
1952 | div [_400] |
||
1953 | pop eax |
||
1954 | test edx, edx |
||
1955 | jz .leap |
||
1956 | xor edx, edx |
||
1957 | div [_100] |
||
1958 | test edx, edx |
||
1959 | jz .noleap |
||
1960 | .leap: |
||
1961 | mov esi, months2 |
||
1962 | .noleap: |
||
1963 | pop edx |
||
1964 | xor eax, eax |
||
1965 | inc eax |
||
1966 | @@: |
||
1967 | sub edx, [esi] |
||
1968 | jb @f |
||
1969 | add esi, 4 |
||
1970 | inc eax |
||
1971 | jmp @b |
||
1972 | @@: |
||
1973 | add edx, [esi] |
||
1974 | pop esi |
||
1975 | inc edx |
||
1976 | mov [edi+4], dl |
||
1977 | mov [edi+5], al |
||
1978 | add edi, 8 |
||
1979 | ret |
||
1980 | |||
1981 | ;---------------------------------------------------------------- |
||
3742 | clevermous | 1982 | ntfs_CreateFolder: |
5954 | pathoswith | 1983 | mov [ebp+NTFS.ntfsFolder], 1 |
1984 | jmp @f |
||
5994 | pathoswith | 1985 | |
5954 | pathoswith | 1986 | ntfs_CreateFile: |
1987 | mov [ebp+NTFS.ntfsFolder], 0 |
||
1988 | @@: |
||
1989 | cmp byte [esi], 0 |
||
1990 | jnz @f |
||
2288 | clevermous | 1991 | xor ebx, ebx |
5954 | pathoswith | 1992 | movi eax, ERROR_ACCESS_DENIED ; root directory itself |
2288 | clevermous | 1993 | ret |
5954 | pathoswith | 1994 | @@: ; 1. Search file |
1995 | call ntfs_lock |
||
1996 | stdcall ntfs_find_lfn, [esp+4] |
||
5994 | pathoswith | 1997 | jnc .found |
5954 | pathoswith | 1998 | cmp [ebp+NTFS.ntfsFragmentCount], 1 |
1999 | jnz @f ; record fragmented |
||
5994 | pathoswith | 2000 | test eax, eax |
2001 | jnz .notFound |
||
5954 | pathoswith | 2002 | push ERROR_FS_FAIL |
2003 | jmp ntfsError |
||
2004 | @@: |
||
2005 | push ERROR_UNSUPPORTED_FS |
||
2006 | jmp ntfsError |
||
5994 | pathoswith | 2007 | |
2008 | .found: ; rewrite |
||
2009 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 |
||
2010 | mov [ebp+NTFS.ntfs_cur_offs], 0 |
||
2011 | mov [ebp+NTFS.ntfs_cur_size], 0 |
||
2012 | call ntfs_read_attr |
||
2013 | jnc @f |
||
2014 | push ERROR_ACCESS_DENIED |
||
2015 | jmp ntfsError |
||
2016 | @@: |
||
2017 | push ERROR_UNSUPPORTED_FS |
||
2018 | mov eax, [ebp+NTFS.frs_buffer] |
||
2019 | cmp word [eax+baseRecordReuse], 0 |
||
2020 | jnz ntfsError ; auxiliary record |
||
2021 | cmp byte [eax+hardLinkCounter], 1 |
||
2022 | jnz ntfsError ; file copying required |
||
2023 | mov ecx, [ebp+NTFS.ntfs_attr_offs] |
||
2024 | cmp byte [ecx+nonResidentFlag], 1 |
||
2025 | jnz ntfsError ; resident $DATA |
||
2026 | mov eax, [ebx+4] |
||
2027 | mov edx, [ebx+8] |
||
2028 | add eax, [ebx+12] |
||
2029 | adc edx, 0 |
||
2030 | cmp edx, [ecx+attributeRealSize+4] |
||
2031 | jnz ntfsError |
||
2032 | cmp [ecx+attributeRealSize], eax |
||
2033 | jnz ntfsError |
||
2034 | jmp ntfs_WriteFile.write |
||
2035 | |||
5954 | pathoswith | 2036 | .notFound: ; create; check name |
2037 | cmp dword [esp+4], 0 |
||
2038 | jnz .bad |
||
2039 | cmp byte [esi], 0 |
||
2040 | jnz @f |
||
2041 | .bad: ; path folder not found |
||
2042 | push ERROR_FILE_NOT_FOUND |
||
2043 | jmp ntfsError |
||
2044 | @@: ; 2. Prepair directory record |
||
2045 | mov ecx, esi |
||
2046 | @@: ; count characters |
||
2047 | inc ecx |
||
2048 | cmp byte [ecx], '/' |
||
2049 | jz .bad |
||
2050 | cmp byte [ecx], 0 |
||
2051 | jnz @b |
||
2052 | sub ecx, esi |
||
2053 | push ecx |
||
2054 | lea ecx, [ecx*2+52h] ; precalculate index length |
||
2055 | add ecx, 7 ; align 8 |
||
2056 | and ecx, not 7 |
||
2057 | mov edi, [ebp+NTFS.cur_index_buf] |
||
2058 | push esi |
||
2059 | push ecx |
||
2060 | cmp dword [edi], 'INDX' ; where are we? |
||
2061 | jz .indexRecord |
||
2062 | mov esi, [ebp+NTFS.frs_buffer] ; mftRecord |
||
2063 | mov edx, [esi+recordRealSize] |
||
2064 | add edx, ecx |
||
2065 | cmp [esi+recordAllocatedSize], edx |
||
2066 | jnc @f |
||
2067 | add esp, 12 |
||
2068 | push ERROR_UNSUPPORTED_FS ; indexAllocation required |
||
2069 | jmp ntfsError |
||
2070 | @@: ; index fits in the indexRoot |
||
2071 | mov [esi+recordRealSize], edx |
||
2072 | mov ecx, edx |
||
2073 | shr ecx, 2 |
||
2074 | rep movsd |
||
2075 | mov edi, [ebp+NTFS.ntfs_attr_offs] |
||
2076 | sub edi, [ebp+NTFS.frs_buffer] |
||
2077 | add edi, [ebp+NTFS.cur_index_buf] |
||
2078 | mov esi, [esp] |
||
2079 | add [edi+sizeWithHeader], esi |
||
2080 | add [edi+sizeWithoutHeader], esi |
||
2081 | mov cx, [edi+attributeOffset] |
||
2082 | add edi, ecx |
||
2083 | add [edi+16+nodeRealSize], esi |
||
2084 | add [edi+16+nodeAllocatedSize], esi |
||
2085 | sub eax, [ebp+NTFS.cur_index_buf] |
||
2086 | add eax, edi |
||
2087 | mov edi, [ebp+NTFS.cur_index_buf] |
||
2088 | add edi, edx |
||
2089 | sub edi, 4 |
||
2090 | jmp .common |
||
2288 | clevermous | 2091 | |
5954 | pathoswith | 2092 | .indexRecord: |
2093 | mov edx, [edi+1ch] |
||
2094 | add edx, ecx |
||
2095 | cmp [edi+20h], edx |
||
2096 | jnc @f |
||
2097 | add esp, 12 |
||
2098 | push ERROR_UNSUPPORTED_FS ; new node required |
||
2099 | jmp ntfsError |
||
2100 | @@: ; index fits in the node |
||
2101 | mov [edi+1ch], edx |
||
2102 | lea edi, [edi+edx+14h] |
||
2103 | .common: |
||
2104 | mov esi, edi |
||
2105 | sub esi, [esp] |
||
2106 | mov ecx, esi |
||
2107 | sub ecx, eax ; eax = pointer in the node |
||
2108 | shr ecx, 2 |
||
2109 | inc ecx |
||
2110 | std |
||
2111 | rep movsd ; move forward, make space |
||
2112 | mov ecx, [esp] |
||
2113 | shr ecx, 2 |
||
2114 | xor eax, eax |
||
2115 | rep stosd |
||
2116 | cld |
||
2117 | add edi, 4 |
||
2118 | pop eax |
||
2119 | pop esi |
||
2120 | mov [edi+indexAllocatedSize], ax ; fill index with data |
||
2121 | mov eax, [esp] |
||
2122 | lea eax, [eax*2+42h] |
||
2123 | mov [edi+indexRawSize], ax |
||
2124 | mov eax, [ebp+NTFS.ntfs_attr_iRecord] |
||
2125 | mov [edi+directoryRecordReference], eax |
||
2126 | mov eax, [ebp+NTFS.frs_buffer] |
||
2127 | mov eax, [eax+reuseCounter] |
||
2128 | mov [edi+directoryReferenceReuse], ax |
||
2129 | mov eax, [ebx+12] |
||
2130 | mov [ebp+NTFS.fileRealSize], eax |
||
2131 | mov [edi+fileRealSize], eax |
||
2132 | mov ecx, [ebp+NTFS.sectors_per_cluster] |
||
2133 | shl ecx, 9 |
||
2134 | add eax, ecx |
||
2135 | dec eax |
||
2136 | xor edx, edx |
||
2137 | div ecx |
||
2138 | mov [ebp+NTFS.fileDataSize], eax |
||
2139 | mul ecx |
||
2140 | mov [edi+fileAllocatedSize], eax |
||
2141 | pop ecx |
||
2142 | mov [ebp+NTFS.indexOffset], edi |
||
2143 | mov [edi+fileNameLength], cl |
||
2144 | add edi, 52h |
||
2145 | @@: ; record filename |
||
2146 | lodsb |
||
2147 | call ansi2uni_char |
||
2148 | stosw |
||
2149 | dec ecx |
||
2150 | jnz @b |
||
2151 | mov eax, [ebp+NTFS.ntfsLastRead] |
||
2152 | mov [ebp+NTFS.nodeLastRead], eax |
||
2153 | cmp [ebp+NTFS.ntfsFolder], 0 |
||
2154 | jz @f |
||
2155 | mov edi, [ebp+NTFS.indexOffset] |
||
2156 | mov byte [edi+fileFlags+3], 16 |
||
2157 | jmp .mftBitmap |
||
2158 | |||
2159 | @@: ; 3. File data |
||
2160 | cmp [ebp+NTFS.fileRealSize], 0 |
||
2161 | jz .mftBitmap |
||
2162 | ; One piece free space bitmap search engine |
||
2163 | mov edi, [ebp+NTFS.BitmapBuffer] |
||
2164 | add edi, [ebp+NTFS.BitmapStart] |
||
2165 | mov eax, [ebp+NTFS.fileDataSize] |
||
2166 | shr eax, 5 |
||
2167 | jz .small |
||
2168 | push eax ; bitmap dwords |
||
2169 | add edi, 4 |
||
2170 | xor edx, edx |
||
2171 | .start: |
||
2172 | mov ecx, [ebp+NTFS.BitmapSize] |
||
2173 | mov eax, edi |
||
2174 | sub eax, [ebp+NTFS.BitmapBuffer] |
||
2175 | sub ecx, eax |
||
2176 | shr ecx, 2 |
||
2177 | @@: |
||
2178 | xor eax, eax |
||
2179 | repnz scasd ; search for empty dword |
||
2180 | jz @f |
||
2181 | call bitmapBuffering |
||
2182 | jmp @b |
||
2183 | @@: |
||
2184 | cmp ecx, [esp] |
||
2185 | jnc @f |
||
2186 | call bitmapBuffering |
||
2187 | jmp @b |
||
2188 | @@: |
||
2189 | sub edi, 4 |
||
2190 | mov ecx, [esp] |
||
2191 | mov esi, edi |
||
2192 | xor eax, eax |
||
2193 | repz scasd ; check following dwords |
||
2194 | jnz .start |
||
2195 | sub esi, 4 |
||
2196 | mov eax, [esi] |
||
2197 | bsr edx, eax |
||
2198 | inc edx |
||
2199 | push edx ; starting bit |
||
2200 | push esi ; starting dword |
||
2201 | add esi, 4 |
||
2202 | neg edx |
||
2203 | add edx, 32 |
||
2204 | mov eax, [ebp+NTFS.fileDataSize] |
||
2205 | sub eax, edx |
||
2206 | mov edx, eax |
||
2207 | shr eax, 5 |
||
2208 | shl eax, 2 |
||
2209 | add esi, eax |
||
2210 | mov eax, [esi] |
||
2211 | bsf ecx, eax ; last dword |
||
2212 | jz .done |
||
2213 | and edx, 31 |
||
2214 | cmp ecx, edx |
||
2215 | jnc .done |
||
2216 | add esp, 8 |
||
2217 | jmp .start |
||
2218 | |||
2219 | .small: ; less than 32 clusters |
||
2220 | mov ecx, [ebp+NTFS.BitmapSize] |
||
2221 | sub ecx, [ebp+NTFS.BitmapStart] |
||
2222 | shr ecx, 2 |
||
2223 | .smStart: |
||
2224 | mov eax, -1 |
||
2225 | repz scasd ; search for zero bits |
||
2226 | push ecx |
||
2227 | test ecx, ecx |
||
2228 | jnz @f |
||
2229 | call bitmapBuffering |
||
2230 | pop eax |
||
2231 | jmp .smStart |
||
2232 | @@: |
||
2233 | sub edi, 4 |
||
2234 | mov eax, [edi] |
||
2235 | not eax |
||
2236 | @@: |
||
2237 | bsf ecx, eax ; first 0 |
||
2238 | jz .again |
||
2239 | not eax |
||
2240 | shr eax, cl |
||
2241 | shl eax, cl |
||
2242 | bsf edx, eax ; next 1 |
||
2243 | jz @f |
||
2244 | sub edx, ecx |
||
2245 | cmp edx, [ebp+NTFS.fileDataSize] |
||
2246 | jnc .got ; fits inside |
||
2247 | bsf ecx, eax |
||
2248 | not eax |
||
2249 | shr eax, cl |
||
2250 | shl eax, cl |
||
2251 | jmp @b |
||
2252 | @@: ; next dword |
||
2253 | mov eax, [edi+4] |
||
2254 | bsf edx, eax |
||
2255 | jz .got ; empty |
||
2256 | add edx, 32 |
||
2257 | sub edx, ecx |
||
2258 | cmp edx, [ebp+NTFS.fileDataSize] |
||
2259 | jnc .got ; share between dwords |
||
2260 | .again: |
||
2261 | add edi, 4 |
||
2262 | pop ecx |
||
2263 | jmp .smStart |
||
2264 | |||
2265 | .got: |
||
2266 | push ecx ; starting bit |
||
2267 | push edi ; starting dword |
||
2268 | .done: ; mark space |
||
2269 | mov ecx, [esp+4] |
||
2270 | cmp ecx, 32 |
||
2271 | jc @f |
||
2272 | xor ecx, ecx |
||
2273 | add dword [esp], 4 |
||
2274 | mov [esp+4], ecx |
||
2275 | @@: |
||
2276 | mov edi, [esp] |
||
2277 | mov esi, [ebp+NTFS.fileDataSize] |
||
2278 | mov edx, [edi] |
||
2279 | ror edx, cl |
||
2280 | neg ecx |
||
2281 | add ecx, 32 |
||
2282 | mov eax, -1 |
||
2283 | sub esi, ecx |
||
2284 | jnc @f |
||
2285 | mov esi, ecx ; fits inside |
||
2286 | mov ecx, [ebp+NTFS.fileDataSize] |
||
2287 | shrd edx, eax, cl |
||
2288 | sub esi, ecx |
||
2289 | mov ecx, esi |
||
2290 | ror edx, cl |
||
2291 | mov [edi], edx |
||
2292 | jmp .writeData |
||
2293 | |||
2294 | @@: |
||
2295 | shrd edx, eax, cl |
||
2296 | mov [edi], edx |
||
2297 | mov ecx, esi |
||
2298 | shr ecx, 5 |
||
2299 | add edi, 4 |
||
2300 | rep stosd |
||
2301 | mov ecx, esi |
||
2302 | and ecx, 31 |
||
2303 | mov edx, [edi] |
||
2304 | shr edx, cl |
||
2305 | shld edx, eax, cl |
||
2306 | mov [edi], edx |
||
2307 | .writeData: |
||
2308 | pop edx |
||
2309 | sub edx, [ebp+NTFS.BitmapBuffer] |
||
2310 | shl edx, 3 |
||
2311 | pop eax |
||
2312 | add eax, edx |
||
2313 | pop edx |
||
2314 | mov [ebp+NTFS.fileDataStart], eax |
||
2315 | mul [ebp+NTFS.sectors_per_cluster] |
||
2316 | mov ecx, [ebp+NTFS.fileRealSize] |
||
2317 | add ecx, 511 |
||
2318 | shr ecx, 9 |
||
2319 | mov ebx, [ebx+16] |
||
2320 | call fs_write64_app |
||
2321 | test eax, eax |
||
2322 | jz .mftBitmap |
||
5994 | pathoswith | 2323 | push ERROR_DEVICE |
5954 | pathoswith | 2324 | jmp ntfsError |
2325 | |||
2326 | ; 4. MFT record |
||
2327 | .mftBitmap: ; search for free record |
||
2328 | mov edi, [ebp+NTFS.mftBitmapBuffer] |
||
2329 | mov ecx, [ebp+NTFS.mftBitmapSize] |
||
2330 | mov al, -1 |
||
2331 | add edi, 3 |
||
2332 | sub ecx, 3 |
||
2333 | repz scasb |
||
2334 | dec edi |
||
2335 | movzx eax, byte [edi] |
||
2336 | not al |
||
2337 | bsf ecx, eax |
||
2338 | jnz @f |
||
2339 | push ERROR_UNSUPPORTED_FS ; no free records |
||
2340 | jmp ntfsError |
||
2341 | @@: ; mark record |
||
2342 | mov al, [edi] |
||
2343 | bts eax, ecx |
||
2344 | mov [edi], al |
||
2345 | ; get record location |
||
2346 | sub edi, [ebp+NTFS.mftBitmapBuffer] |
||
2347 | shl edi, 3 |
||
2348 | add edi, ecx |
||
2349 | mov [ebp+NTFS.newMftRecord], edi |
||
2350 | mov eax, [ebp+NTFS.frs_size] |
||
2351 | shr eax, 9 |
||
2352 | mul edi |
||
2353 | mov [ebp+NTFS.ntfs_cur_iRecord], 0 |
||
2354 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 |
||
2355 | mov [ebp+NTFS.ntfs_cur_offs], eax |
||
2356 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
2357 | mov eax, [ebp+NTFS.frs_buffer] |
||
2358 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2359 | call ntfs_read_attr |
||
2360 | cmp [ebp+NTFS.ntfs_cur_read], 0 |
||
2361 | jnz .mftRecord |
||
2362 | ; extend MFT $DATA |
||
2363 | mov eax, [ebp+NTFS.mft_cluster] |
||
2364 | mul [ebp+NTFS.sectors_per_cluster] |
||
2365 | push ERROR_UNSUPPORTED_FS |
||
2366 | cmp eax, [ebp+NTFS.ntfsLastRead] |
||
2367 | jnz ntfsError ; auxiliary record |
||
2368 | mov edi, [ebp+NTFS.ntfs_attr_offs] |
||
2369 | mov ebx, [ebp+NTFS.sectors_per_cluster] |
||
2370 | shl ebx, 9+3 |
||
2371 | add dword [edi+lastVCN], 8 |
||
2372 | add [edi+attributeAllocatedSize], ebx |
||
5994 | pathoswith | 2373 | adc byte [edi+attributeAllocatedSize+4], 0 |
5954 | pathoswith | 2374 | add [edi+attributeRealSize], ebx |
5994 | pathoswith | 2375 | adc byte [edi+attributeRealSize+4], 0 |
5954 | pathoswith | 2376 | add [edi+initialDataSize], ebx |
5994 | pathoswith | 2377 | adc byte [edi+initialDataSize+4], 0 |
5954 | pathoswith | 2378 | add edi, [edi+dataRunsOffset] |
2379 | movzx eax, byte [edi] |
||
2380 | inc edi |
||
2381 | shl eax, 4 |
||
2382 | shr al, 4 |
||
2383 | mov cl, 4 |
||
2384 | sub cl, al |
||
2385 | shl cl, 3 |
||
2386 | add ah, al |
||
2387 | shr eax, 8 |
||
2388 | cmp byte [edi+eax], 0 |
||
2389 | jnz ntfsError ; $MFT fragmented |
||
2390 | mov al, 8 |
||
2391 | mov edx, [edi] |
||
2392 | rol eax, cl |
||
2393 | rol edx, cl |
||
2394 | add eax, edx |
||
2395 | jc ntfsError |
||
2396 | ror eax, cl |
||
2397 | shr edx, cl |
||
2398 | mov [edi], eax |
||
2399 | add edx, [ebp+NTFS.mft_cluster] |
||
2400 | mov esi, edx |
||
2401 | mov ecx, edx |
||
2402 | and ecx, 7 |
||
2403 | shr edx, 3 |
||
2404 | add edx, [ebp+NTFS.BitmapBuffer] |
||
5994 | pathoswith | 2405 | mov ax, [edx] |
2406 | shr ax, cl |
||
2407 | test al, al |
||
5954 | pathoswith | 2408 | jnz ntfsError |
5994 | pathoswith | 2409 | dec al |
5954 | pathoswith | 2410 | xchg [edx], al |
2411 | mov [edx+1], al |
||
2412 | pop eax |
||
5994 | pathoswith | 2413 | push ERROR_OUT_OF_MEMORY |
5954 | pathoswith | 2414 | stdcall kernel_alloc, ebx |
2415 | test eax, eax |
||
2416 | jz ntfsError |
||
2417 | mov ecx, ebx |
||
2418 | shr ecx, 2 |
||
2419 | mov edi, eax |
||
2420 | push ebx |
||
2421 | mov ebx, eax |
||
2422 | xor eax, eax |
||
2423 | rep stosd |
||
2424 | mov eax, esi |
||
2425 | mul [ebp+NTFS.sectors_per_cluster] |
||
2426 | pop ecx |
||
2427 | shr ecx, 9 |
||
2428 | call fs_write64_sys ; clear new records |
||
2429 | stdcall kernel_free, ebx |
||
2430 | pop eax |
||
5994 | pathoswith | 2431 | push ERROR_DEVICE |
5954 | pathoswith | 2432 | mov eax, esi |
2433 | shr eax, 3+9 |
||
2434 | mov ebx, eax |
||
2435 | shl ebx, 9 |
||
2436 | add ebx, [ebp+NTFS.BitmapBuffer] |
||
2437 | add eax, [ebp+NTFS.BitmapLocation] |
||
2438 | mov ecx, 1 |
||
2439 | xor edx, edx |
||
2440 | call fs_write64_app ; partition bitmap |
||
2441 | test eax, eax |
||
2442 | jnz ntfsError |
||
2443 | mov eax, [ebp+NTFS.frs_buffer] |
||
2444 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2445 | call writeRecord ; $MFT |
||
2446 | test eax, eax |
||
2447 | jnz ntfsError |
||
2448 | mov eax, [ebp+NTFS.mftmirr_cluster] |
||
2449 | mul [ebp+NTFS.sectors_per_cluster] |
||
2450 | mov ebx, [ebp+NTFS.frs_buffer] |
||
2451 | movzx ecx, word [ebx+updateSequenceSize] |
||
2452 | dec ecx |
||
2453 | call fs_write64_sys ; $MFTMirr |
||
2454 | test eax, eax |
||
2455 | jnz ntfsError |
||
2456 | pop eax |
||
2457 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
||
2458 | add [ebp+NTFS.ntfsLastRead], eax |
||
2459 | .mftRecord: |
||
2460 | mov esi, [ebp+NTFS.indexOffset] |
||
2461 | mov edi, [ebp+NTFS.frs_buffer] |
||
2462 | xor eax, eax |
||
2463 | movzx ecx, word [esi+indexAllocatedSize] |
||
2464 | add ecx, 8+30h+48h+50h+8 |
||
2465 | push ecx |
||
2466 | shr ecx, 2 |
||
2467 | rep stosd |
||
2468 | mov edi, [ebp+NTFS.frs_buffer] |
||
2469 | ; record header |
||
2470 | mov dword[edi], 'FILE' |
||
2471 | mov byte [edi+updateSequenceOffset], 2ah |
||
2472 | mov byte [edi+updateSequenceSize], 3 |
||
2473 | mov byte [edi+hardLinkCounter], 1 |
||
2474 | mov byte [edi+attributeOffset], 30h |
||
2475 | pop dword[edi+recordRealSize] |
||
2476 | mov word [edi+recordAllocatedSize], 1024 |
||
2477 | mov byte [edi+newAttributeID], 3 |
||
2478 | rdtsc |
||
2479 | mov [edi+2ah], ax |
||
2480 | add edi, 30h |
||
2481 | ; $StandardInformation |
||
2482 | mov byte [edi+attributeType], 10h |
||
2483 | mov byte [edi+sizeWithHeader], 48h |
||
2484 | mov byte [edi+sizeWithoutHeader], 30h |
||
2485 | mov byte [edi+attributeOffset], 18h |
||
2486 | add edi, 48h |
||
2487 | ; $FileName |
||
2488 | mov byte [edi+attributeType], 30h |
||
2489 | mov byte [edi+attributeID], 1 |
||
2490 | mov cx, [esi+indexRawSize] |
||
2491 | mov [edi+sizeWithoutHeader], ecx |
||
2492 | mov cx, [esi+indexAllocatedSize] |
||
2493 | add ecx, 8 |
||
2494 | mov [edi+sizeWithHeader], ecx |
||
2495 | mov byte [edi+attributeOffset], 18h |
||
2496 | mov byte [edi+attributeFlags], 1 |
||
2497 | add edi, 18h |
||
2498 | add esi, 16 |
||
2499 | sub ecx, 18h |
||
2500 | shr ecx, 2 |
||
2501 | rep movsd |
||
2502 | cmp [ebp+NTFS.ntfsFolder], 0 |
||
2503 | jnz @f |
||
2504 | ; $Data |
||
2505 | mov byte [edi+attributeType], 80h |
||
2506 | cmp [ebp+NTFS.fileRealSize], 0 |
||
2507 | jz .zeroSize |
||
2508 | mov esi, [ebp+NTFS.indexOffset] |
||
2509 | mov byte [edi+nonResidentFlag], 1 |
||
2510 | mov byte [edi+dataRunsOffset], 40h |
||
2511 | mov eax, [esi+fileAllocatedSize] |
||
2512 | mov [edi+attributeAllocatedSize], eax |
||
2513 | mov eax, [esi+fileRealSize] |
||
2514 | mov [edi+attributeRealSize], eax |
||
2515 | mov [edi+initialDataSize], eax |
||
2516 | mov byte [edi+40h], 44h |
||
2517 | mov eax, [ebp+NTFS.fileDataSize] |
||
2518 | mov [edi+41h], eax |
||
2519 | dec eax |
||
2520 | mov [edi+lastVCN], eax |
||
2521 | mov eax, [ebp+NTFS.fileDataStart] |
||
2522 | mov [edi+45h], eax |
||
2523 | mov al, 1 |
||
2524 | jmp .writeMftRecord |
||
2525 | |||
2526 | .zeroSize: |
||
2527 | mov byte [edi+attributeOffset], 18h |
||
2528 | mov al, 1 |
||
2529 | jmp .writeMftRecord |
||
2530 | |||
2531 | @@: ; $IndexRoot |
||
2532 | mov byte [edi+attributeType], 90h |
||
2533 | mov byte [edi+nameLength], 4 |
||
2534 | mov byte [edi+nameOffset], 18h |
||
2535 | mov byte [edi+sizeWithoutHeader], 30h |
||
2536 | mov byte [edi+attributeOffset], 20h |
||
2537 | mov dword[edi+18h], 490024h ; unicode $I30 |
||
2538 | mov dword[edi+18h+4], 300033h |
||
2539 | add edi, 20h |
||
2540 | mov byte [edi+attributeType], 30h |
||
2541 | mov byte [edi+collationRule], 1 |
||
2542 | mov eax, [ebp+NTFS.sectors_per_cluster] |
||
2543 | shl eax, 9 |
||
2544 | mov [edi+indexRecordSize], eax |
||
2545 | mov byte [edi+indexRecordSizeClus], 1 |
||
2546 | mov byte [edi+16+indexOffset], 16 |
||
2547 | mov byte [edi+16+nodeRealSize], 32 |
||
2548 | mov byte [edi+16+nodeAllocatedSize], 32 |
||
2549 | mov byte [edi+32+indexAllocatedSize], 16 |
||
2550 | mov byte [edi+32+indexFlags], 2 |
||
2551 | sub edi, 20h |
||
2552 | mov al, 3 |
||
2553 | .writeMftRecord: |
||
2554 | mov byte [edi+sizeWithHeader], 50h |
||
2555 | mov byte [edi+attributeID], 2 |
||
2556 | mov dword[edi+50h], -1 ; $End |
||
2557 | mov edi, [ebp+NTFS.frs_buffer] |
||
2558 | mov [edi+recordFlags], al |
||
2559 | mov [ebp+NTFS.ntfs_cur_buf], edi |
||
2560 | call writeRecord |
||
2561 | test eax, eax |
||
2562 | jz @f |
||
5994 | pathoswith | 2563 | push ERROR_DEVICE |
5954 | pathoswith | 2564 | jmp ntfsError |
2565 | @@: |
||
2566 | mov esi, [ebp+PARTITION.Disk] |
||
2567 | call disk_sync |
||
2568 | ; write MFT bitmap |
||
2569 | mov eax, [ebp+NTFS.newMftRecord] |
||
2570 | shr eax, 3+9 |
||
2571 | mov ebx, eax |
||
2572 | shl ebx, 9 |
||
2573 | add eax, [ebp+NTFS.mftBitmapLocation] |
||
2574 | add ebx, [ebp+NTFS.mftBitmapBuffer] |
||
2575 | mov ecx, 1 |
||
2576 | xor edx, edx |
||
2577 | call fs_write64_sys |
||
2578 | test eax, eax |
||
2579 | jz @f |
||
5994 | pathoswith | 2580 | push ERROR_DEVICE |
5954 | pathoswith | 2581 | jmp ntfsError |
2582 | @@: ; 5. Write partition bitmap |
||
2583 | cmp [ebp+NTFS.ntfsFolder], 0 |
||
2584 | jnz @f |
||
2585 | cmp [ebp+NTFS.fileRealSize], 0 |
||
2586 | jz @f |
||
2587 | mov ecx, [ebp+NTFS.fileDataStart] |
||
2588 | mov eax, ecx |
||
2589 | add ecx, [ebp+NTFS.fileDataSize] |
||
2590 | add ecx, 4095 |
||
2591 | shr ecx, 3+9 |
||
2592 | shr eax, 3+9 |
||
2593 | sub ecx, eax |
||
2594 | mov ebx, eax |
||
2595 | shl ebx, 9 |
||
2596 | add eax, [ebp+NTFS.BitmapLocation] |
||
2597 | add ebx, [ebp+NTFS.BitmapBuffer] |
||
2598 | xor edx, edx |
||
2599 | call fs_write64_app |
||
2600 | test eax, eax |
||
2601 | jz @f |
||
5994 | pathoswith | 2602 | push ERROR_DEVICE |
5954 | pathoswith | 2603 | jmp ntfsError |
2604 | @@: |
||
2605 | mov esi, [ebp+PARTITION.Disk] |
||
2606 | call disk_sync |
||
2607 | mov edi, [ebp+NTFS.indexOffset] |
||
2608 | mov eax, [ebp+NTFS.newMftRecord] |
||
2609 | mov [edi+fileRecordReference], eax |
||
2610 | ; 6. Write directory node |
||
2611 | mov eax, [ebp+NTFS.nodeLastRead] |
||
2612 | mov [ebp+NTFS.ntfsLastRead], eax |
||
2613 | mov eax, [ebp+NTFS.cur_index_buf] |
||
2614 | mov [ebp+NTFS.ntfs_cur_buf], eax |
||
2615 | call writeRecord |
||
2616 | push eax |
||
2617 | mov esi, [ebp+PARTITION.Disk] |
||
2618 | call disk_sync |
||
2619 | call ntfs_unlock |
||
2620 | pop eax |
||
2621 | mov ebx, [ebp+NTFS.fileRealSize] |
||
2622 | ret |
||
2623 | |||
2624 | writeRecord: |
||
2625 | ; in: |
||
2626 | ; [ebp+NTFS.ntfs_cur_buf] = record |
||
2627 | ; [ebp+NTFS.ntfsLastRead] = partition sector |
||
2628 | ; making updateSequence |
||
2629 | mov esi, [ebp+NTFS.ntfs_cur_buf] |
||
2630 | mov edi, esi |
||
2631 | movzx ecx, word [esi+updateSequenceOffset] |
||
2632 | add edi, ecx |
||
2633 | mov ax, [edi] |
||
2634 | add edi, 2 |
||
2635 | mov cx, [esi+updateSequenceSize] |
||
2636 | dec ecx |
||
2637 | push ecx |
||
2638 | @@: |
||
2639 | add esi, 510 |
||
2640 | movsw |
||
2641 | mov [esi-2], ax |
||
2642 | dec ecx |
||
2643 | jnz @b |
||
2644 | ; writing to disk |
||
2645 | mov eax, [ebp+NTFS.ntfsLastRead] |
||
2646 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
||
2647 | pop ecx |
||
2648 | xor edx, edx |
||
2649 | jmp fs_write64_sys |
||
2650 | |||
2651 | bitmapBuffering: |
||
2652 | ; Extend BitmapBuffer and read next 32kb of bitmap |
||
2653 | ; Warning: $Bitmap fragmentation is not foreseen |
||
2654 | push ebx |
||
2655 | mov eax, [ebp+NTFS.BitmapTotalSize] |
||
2656 | cmp eax, [ebp+NTFS.BitmapSize] |
||
2657 | jz .end |
||
2658 | stdcall alloc_pages, 8 |
||
2659 | test eax, eax |
||
2660 | jz .end |
||
2661 | add eax, 3 |
||
2662 | mov ebx, [ebp+NTFS.BitmapBuffer] |
||
2663 | add ebx, [ebp+NTFS.BitmapSize] |
||
2664 | push ebx |
||
2665 | mov ecx, 8 |
||
2666 | call commit_pages |
||
2667 | mov eax, [ebp+NTFS.BitmapSize] |
||
2668 | shr eax, 9 |
||
2669 | add eax, [ebp+NTFS.BitmapLocation] |
||
2670 | pop ebx |
||
2671 | mov ecx, 64 |
||
2672 | xor edx, edx |
||
2673 | call fs_read64_app |
||
2674 | test eax, eax |
||
2675 | jnz .err |
||
2676 | add [ebp+NTFS.BitmapSize], 8000h |
||
2677 | mov eax, [ebp+NTFS.BitmapTotalSize] |
||
2678 | cmp eax, [ebp+NTFS.BitmapSize] |
||
2679 | jnc @f |
||
2680 | mov [ebp+NTFS.BitmapSize], eax |
||
2681 | @@: |
||
2682 | mov ecx, [ebp+NTFS.BitmapSize] |
||
2683 | mov eax, edi |
||
2684 | sub eax, [ebp+NTFS.BitmapBuffer] |
||
2685 | sub ecx, eax |
||
2686 | shr ecx, 2 |
||
2687 | pop ebx |
||
2688 | ret |
||
2689 | |||
2690 | .err: |
||
2691 | mov eax, [ebp+NTFS.BitmapBuffer] |
||
2692 | add eax, [ebp+NTFS.BitmapSize] |
||
2693 | mov ecx, 8 |
||
2694 | call release_pages |
||
2695 | .end: |
||
2696 | add esp, 12 ; double ret |
||
2697 | push ERROR_DISK_FULL |
||
2698 | jmp ntfsError |
||
2699 | |||
2288 | clevermous | 2700 | ;---------------------------------------------------------------- |
5994 | pathoswith | 2701 | ntfs_WriteFile: |
2702 | cmp byte [esi], 0 |
||
2703 | jnz @f |
||
2288 | clevermous | 2704 | xor ebx, ebx |
5994 | pathoswith | 2705 | movi eax, ERROR_ACCESS_DENIED |
2288 | clevermous | 2706 | ret |
5994 | pathoswith | 2707 | @@: |
2708 | call ntfs_lock |
||
2709 | stdcall ntfs_find_lfn, [esp+4] |
||
2710 | jnc .found |
||
2711 | push ERROR_FILE_NOT_FOUND |
||
2712 | jmp ntfsError |
||
2713 | .found: |
||
2714 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 |
||
2715 | mov [ebp+NTFS.ntfs_cur_offs], 0 |
||
2716 | mov [ebp+NTFS.ntfs_cur_size], 0 |
||
2717 | call ntfs_read_attr |
||
2718 | jnc @f |
||
2719 | push ERROR_ACCESS_DENIED |
||
2720 | jmp ntfsError |
||
2721 | @@: |
||
2722 | push ERROR_UNSUPPORTED_FS |
||
2723 | mov eax, [ebp+NTFS.frs_buffer] |
||
2724 | cmp word [eax+baseRecordReuse], 0 |
||
2725 | jnz ntfsError ; auxiliary record |
||
2726 | cmp byte [eax+hardLinkCounter], 1 |
||
2727 | jnz ntfsError ; file copying required |
||
2728 | mov ecx, [ebp+NTFS.ntfs_attr_offs] |
||
2729 | cmp byte [ecx+nonResidentFlag], 1 |
||
2730 | jnz ntfsError ; resident $DATA |
||
2731 | mov eax, [ebx+4] |
||
2732 | mov edx, [ebx+8] |
||
2733 | add eax, [ebx+12] |
||
2734 | adc edx, 0 |
||
2735 | cmp edx, [ecx+attributeRealSize+4] |
||
2736 | jc .write |
||
2737 | jnz ntfsError ; end of file |
||
2738 | cmp [ecx+attributeRealSize], eax |
||
2739 | jc ntfsError |
||
2740 | .write: |
||
2741 | pop eax |
||
2742 | push ERROR_DEVICE |
||
2743 | mov eax, [ebx+4] |
||
2744 | mov edx, [ebx+8] |
||
2745 | mov ecx, [ebx+12] |
||
2746 | mov esi, [ebx+16] |
||
2747 | shrd eax, edx, 9 |
||
2748 | test dword[ebx+4], 1FFh |
||
2749 | jz .aligned |
||
2750 | mov [ebp+NTFS.ntfs_cur_offs], eax |
||
2751 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
2752 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
||
2753 | mov [ebp+NTFS.ntfs_cur_buf], edi |
||
2754 | call ntfs_read_attr.continue |
||
2755 | jc ntfsError |
||
2756 | mov eax, [ebx+4] |
||
2757 | and eax, 1FFh |
||
2758 | add edi, eax |
||
2759 | sub eax, [ebp+NTFS.ntfs_cur_read] |
||
2760 | neg eax |
||
2761 | push ecx |
||
2762 | cmp ecx, eax |
||
2763 | jb @f |
||
2764 | mov ecx, eax |
||
2765 | @@: |
||
2766 | sub [esp], ecx |
||
2767 | rep movsb |
||
2768 | push ebx |
||
2769 | mov eax, [ebp+NTFS.ntfsLastRead] |
||
2770 | lea ebx, [ebp+NTFS.ntfs_bitmap_buf] |
||
2771 | mov ecx, 1 |
||
2772 | xor edx, edx |
||
2773 | call fs_write64_app |
||
2774 | pop ebx |
||
2775 | pop ecx |
||
2776 | test eax, eax |
||
2777 | jnz ntfsError |
||
2778 | test ecx, ecx |
||
2779 | jz @f |
||
2780 | mov eax, [ebx+4] |
||
2781 | mov edx, [ebx+8] |
||
2782 | shrd eax, edx, 9 |
||
2783 | inc eax |
||
2784 | .aligned: |
||
2785 | push ecx |
||
2786 | shr ecx, 9 |
||
2787 | mov [ebp+NTFS.ntfs_cur_offs], eax |
||
2788 | mov [ebp+NTFS.ntfs_cur_size], ecx |
||
2789 | mov [ebp+NTFS.ntfs_cur_buf], esi |
||
2790 | add eax, ecx |
||
2791 | push eax |
||
2792 | mov [ebp+NTFS.ntfsWriteAttr], 1 |
||
2793 | call ntfs_read_attr.continue |
||
2794 | mov [ebp+NTFS.ntfsWriteAttr], 0 |
||
2795 | pop [ebp+NTFS.ntfs_cur_offs] |
||
2796 | pop ecx |
||
2797 | jc ntfsError |
||
2798 | and ecx, 1FFh |
||
2799 | jz @f |
||
2800 | add esi, [ebp+NTFS.ntfs_cur_read] |
||
2801 | mov [ebp+NTFS.ntfs_cur_size], 1 |
||
2802 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
||
2803 | mov [ebp+NTFS.ntfs_cur_buf], edi |
||
2804 | call ntfs_read_attr.continue |
||
2805 | jc ntfsError |
||
2806 | rep movsb |
||
2807 | push ebx |
||
2808 | mov eax, [ebp+NTFS.ntfsLastRead] |
||
2809 | lea ebx, [ebp+NTFS.ntfs_bitmap_buf] |
||
2810 | mov ecx, 1 |
||
2811 | xor edx, edx |
||
2812 | call fs_write64_app |
||
2813 | pop ebx |
||
2814 | @@: |
||
2815 | mov esi, [ebp+PARTITION.Disk] |
||
2816 | call disk_sync |
||
2817 | call ntfs_unlock |
||
2818 | pop eax |
||
2819 | xor eax, eax |
||
2820 | mov ebx, [ebx+12] |
||
2821 | ret |
||
2288 | clevermous | 2822 | |
5954 | pathoswith | 2823 | ;---------------------------------------------------------------- |
3742 | clevermous | 2824 | ntfs_SetFileEnd: |
2825 | ntfs_SetFileInfo: |
||
2826 | ntfs_Delete: |
||
2288 | clevermous | 2827 | mov eax, ERROR_UNSUPPORTED_FS |
2828 | ret |
||
2829 | |||
3742 | clevermous | 2830 | ;---------------------------------------------------------------- |
2831 | ntfs_GetFileInfo: |
||
2288 | clevermous | 2832 | cmp byte [esi], 0 |
2833 | jnz @f |
||
5994 | pathoswith | 2834 | movi eax, ERROR_UNSUPPORTED_FS |
2288 | clevermous | 2835 | ret |
2836 | @@: |
||
3742 | clevermous | 2837 | call ntfs_lock |
2838 | stdcall ntfs_find_lfn, [esp+4] |
||
5994 | pathoswith | 2839 | jnc .found |
2840 | push ERROR_FILE_NOT_FOUND |
||
3742 | clevermous | 2841 | test eax, eax |
5994 | pathoswith | 2842 | jnz ntfsError |
3742 | clevermous | 2843 | pop eax |
5994 | pathoswith | 2844 | push ERROR_FS_FAIL |
5954 | pathoswith | 2845 | jmp ntfsError |
5994 | pathoswith | 2846 | .found: |
2288 | clevermous | 2847 | push esi edi |
2848 | mov esi, eax |
||
3742 | clevermous | 2849 | mov edi, [ebx+16] |
2288 | clevermous | 2850 | xor eax, eax |
2851 | call ntfs_direntry_to_bdfe |
||
2852 | pop edi esi |
||
3742 | clevermous | 2853 | call ntfs_unlock |
2288 | clevermous | 2854 | xor eax, eax |
2855 | ret |
||
2856 | |||
5954 | pathoswith | 2857 | ntfsError: |
2858 | call ntfs_unlock |
||
2859 | xor ebx, ebx |
||
2860 | pop eax |
||
2861 | ret>=>=> |