forked from KolibriOS/kolibrios
NTFS: proper support of resident data
git-svn-id: svn://kolibrios.org@6151 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
pathoswithin
parent
7db6374dfb
commit
a55374019f
@ -2015,16 +2015,9 @@ ntfs_CreateFile:
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jc ntfsDenied
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cmp [ebp+NTFS.ntfsFolder], 1
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jz .folder
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xor ecx, ecx
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mov edx, [ebx+12]
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mov [ebp+NTFS.nodeLastRead], ecx
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cmp [eax+fileRealSize+4], ecx
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jnz @f
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cmp [eax+fileRealSize], edx
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jz .readAttribute
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@@: ; set file size in the directory
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cmp [ebp+NTFS.ntfsFragmentCount], 1
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jnz ntfsUnsupported ; record fragmented
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; edit directory node
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mov edi, [ebp+NTFS.cur_index_buf]
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cmp dword [edi], 'INDX'
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jz @f
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@ -2037,13 +2030,12 @@ ntfs_CreateFile:
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sub esi, [ebp+NTFS.frs_buffer]
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add eax, ecx
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add eax, esi
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xor ecx, ecx
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@@:
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mov edx, [ebx+12]
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mov [eax+fileRealSize], edx
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mov [eax+fileRealSize+4], ecx
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mov dword [eax+fileRealSize+4], 0
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mov eax, [ebp+NTFS.ntfsLastRead]
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mov [ebp+NTFS.nodeLastRead], eax
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.readAttribute:
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mov [ebp+NTFS.ntfs_cur_attr], 0x80
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mov [ebp+NTFS.ntfs_cur_offs], 0
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mov [ebp+NTFS.ntfs_cur_size], 0
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@ -2055,10 +2047,11 @@ ntfs_CreateFile:
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cmp word [ecx+baseRecordReuse], 0
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jnz ntfsUnsupported ; auxiliary record
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mov ecx, [ebp+NTFS.ntfs_attr_offs]
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cmp byte [ecx+nonResidentFlag], 1
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jnz ntfsUnsupported ; resident $DATA
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test eax, eax
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jz ntfsUnsupported
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cmp word [ecx+attributeFlags], 0
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jnz ntfsUnsupported
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push ebx
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cmp byte [ecx+nonResidentFlag], 0
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jz @f
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cmp [ecx+attributeRealSize+4], edx
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jnz @f
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cmp [ecx+attributeRealSize], eax
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@ -2148,9 +2141,9 @@ ntfs_CreateFile:
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rep stosd
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cld
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add edi, 4
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pop eax
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pop ecx
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pop esi
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mov [edi+indexAllocatedSize], ax ; fill index with data
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mov [edi+indexAllocatedSize], cx ; fill index with data
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mov eax, [esp]
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shl eax, 1
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add eax, 42h
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@ -2161,8 +2154,16 @@ ntfs_CreateFile:
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mov eax, [eax+reuseCounter]
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mov [edi+directoryReferenceReuse], ax
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mov eax, [ebx+12]
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add ecx, 30h+48h+8+18h+8
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add ecx, eax
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mov [ebp+NTFS.fileRealSize], eax
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mov [edi+fileRealSize], eax
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cmp [ebp+NTFS.frs_size], ecx
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jc @f
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mov eax, [ebx+16]
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mov [ebp+NTFS.fileDataStart], eax
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xor eax, eax
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@@:
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mov ecx, [ebp+NTFS.sectors_per_cluster]
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shl ecx, 9
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add eax, ecx
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@ -2191,7 +2192,7 @@ ntfs_CreateFile:
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jmp .mftBitmap
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@@: ; 3. File data
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cmp [ebp+NTFS.fileRealSize], 0
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cmp [ebp+NTFS.fileDataSize], 0
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jz .mftBitmap
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mov edi, [ebp+NTFS.BitmapStart]
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call ntfsSpaceAlloc
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@ -2297,23 +2298,22 @@ ntfs_CreateFile:
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pop [ebp+NTFS.fileDataSize]
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pop [ebp+NTFS.fileDataStart]
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.mftRecord:
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mov esi, [ebp+NTFS.indexOffset]
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mov ecx, [ebp+NTFS.frs_size]
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shr ecx, 2
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mov edi, [ebp+NTFS.frs_buffer]
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xor eax, eax
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movzx ecx, word [esi+indexAllocatedSize]
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add ecx, 8+30h+48h+50h+8
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push ecx
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shr ecx, 2
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rep stosd
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mov edi, [ebp+NTFS.frs_buffer]
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; record header
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mov eax, [ebp+NTFS.frs_size]
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mov [edi+recordAllocatedSize], eax
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shr eax, 9
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inc eax
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mov [edi+updateSequenceSize], al
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mov dword[edi], 'FILE'
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mov byte [edi+updateSequenceOffset], 2ah
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mov byte [edi+updateSequenceSize], 3
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mov byte [edi+hardLinkCounter], 1
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mov byte [edi+attributeOffset], 30h
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popd [edi+recordRealSize]
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mov word [edi+recordAllocatedSize], 1024
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mov byte [edi+newAttributeID], 3
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rdtsc
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mov [edi+2ah], ax
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@ -2325,15 +2325,16 @@ ntfs_CreateFile:
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mov byte [edi+attributeOffset], 18h
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add edi, 48h
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; $FileName
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mov esi, [ebp+NTFS.indexOffset]
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mov byte [edi+attributeType], 30h
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mov byte [edi+attributeID], 1
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mov byte [edi+attributeOffset], 18h
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mov byte [edi+indexedFlag], 1
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mov cx, [esi+indexRawSize]
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mov [edi+sizeWithoutHeader], ecx
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mov cx, [esi+indexAllocatedSize]
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add ecx, 8
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mov [edi+sizeWithHeader], ecx
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mov byte [edi+attributeOffset], 18h
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mov byte [edi+indexedFlag], 1
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add edi, 18h
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add esi, 16
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sub ecx, 18h
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@ -2341,15 +2342,14 @@ ntfs_CreateFile:
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rep movsd
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mov byte [edi+sizeWithHeader], 50h
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mov byte [edi+attributeID], 2
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mov dword[edi+50h], -1 ; $End
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cmp [ebp+NTFS.ntfsFolder], 0
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jnz @f
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cmp [ebp+NTFS.ntfsFolder], 1
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jz .indexRoot
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; $Data
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mov byte [edi+attributeType], 80h
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cmp [ebp+NTFS.fileRealSize], 0
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jz .zeroSize
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mov esi, [ebp+NTFS.indexOffset]
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mov eax, [ebp+NTFS.fileDataSize]
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test eax, eax
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jz .resident
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mov esi, [ebp+NTFS.indexOffset]
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dec eax
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mov [edi+lastVCN], eax
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mov byte [edi+nonResidentFlag], 1
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@ -2359,18 +2359,33 @@ ntfs_CreateFile:
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mov eax, [esi+fileRealSize]
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mov [edi+attributeRealSize], eax
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mov [edi+initialDataSize], eax
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push edi
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mov esi, edi
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add edi, 40h
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call createMcbEntry
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mov al, 1
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jmp .writeMftRecord
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inc edi
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jmp @f
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.zeroSize:
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.resident:
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mov ecx, [ebp+NTFS.fileRealSize]
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mov [edi+sizeWithoutHeader], ecx
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mov byte [edi+attributeOffset], 18h
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push edi
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mov esi, [ebp+NTFS.fileDataStart]
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add edi, 18h
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rep movsb
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@@:
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mov eax, edi
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pop edi
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sub eax, edi
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add eax, 7
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and eax, not 7
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mov [edi+sizeWithHeader], eax
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add edi, eax
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mov al, 1
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jmp .writeMftRecord
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jmp @f
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@@: ; $IndexRoot
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.indexRoot:
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mov byte [edi+attributeType], 90h
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mov byte [edi+nameLength], 4
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mov byte [edi+nameOffset], 18h
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@ -2389,11 +2404,17 @@ ntfs_CreateFile:
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mov byte [edi+30h+nodeAllocatedSize], 32
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mov byte [edi+40h+indexAllocatedSize], 16
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mov byte [edi+40h+indexFlags], 2
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add edi, 50h
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mov al, 3
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.writeMftRecord:
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mov edi, [ebp+NTFS.frs_buffer]
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mov [ebp+NTFS.ntfs_cur_buf], edi
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mov [edi+recordFlags], al
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@@:
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mov esi, [ebp+NTFS.frs_buffer]
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mov dword [edi], -1
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mov dword [edi+4], 0
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add edi, 8
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sub edi, esi
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mov [ebp+NTFS.ntfs_cur_buf], esi
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mov [esi+recordFlags], al
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mov [esi+recordRealSize], edi
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call writeRecord
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test eax, eax
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jnz ntfsDevice
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@ -2410,12 +2431,12 @@ ntfs_CreateFile:
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test eax, eax
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jnz ntfsDevice
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; 5. Write partition bitmap
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cmp [ebp+NTFS.ntfsFolder], 0
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jnz @f
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cmp [ebp+NTFS.fileRealSize], 0
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cmp [ebp+NTFS.ntfsFolder], 1
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jz @f
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mov eax, [ebp+NTFS.fileDataStart]
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mov ecx, [ebp+NTFS.fileDataSize]
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test ecx, ecx
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jz @f
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add ecx, eax
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add ecx, 4095
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shr ecx, 3+9
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@ -2499,7 +2520,7 @@ createMcbEntry:
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lea eax, [edi+edx+1]
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add eax, ecx
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sub eax, esi
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sub ax, [esi+sizeWithHeader]
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sub eax, [esi+sizeWithHeader]
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jc @f
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add word [esi+sizeWithHeader], 8 ; extend attribute
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mov esi, [ebp+NTFS.frs_buffer]
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@ -2531,6 +2552,7 @@ createMcbEntry:
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lea esi, [ebp+NTFS.fileDataStart]
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mov ecx, edx
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rep movsb
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mov [edi], cl
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.end:
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ret
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@ -2544,16 +2566,19 @@ resizeAttribute:
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; [ebp+NTFS.fileDataStart] = added block
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; CF=1 -> eax = error code
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mov esi, [ebp+NTFS.ntfs_attr_offs]
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mov ecx, [ebp+NTFS.sectors_per_cluster]
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shl ecx, 9
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mov dword [ebp+NTFS.ntfs_attr_size], eax
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mov dword [ebp+NTFS.ntfs_attr_size+4], edx
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cmp byte [esi+nonResidentFlag], 0
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jz .resident
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mov ecx, [ebp+NTFS.sectors_per_cluster]
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shl ecx, 9
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mov [esi+attributeRealSize], eax
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mov [esi+attributeRealSize+4], edx
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mov [esi+initialDataSize], eax
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mov [esi+initialDataSize+4], edx
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sub eax, 1
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sbb edx, 0
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jc .makeResident
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div ecx
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mov edi, eax
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inc eax
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@ -2616,9 +2641,9 @@ resizeAttribute:
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pop ecx
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pop eax
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jc .err2
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mov byte [edi], 0
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mov [ebp+NTFS.fileDataSize], ecx
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mov [ebp+NTFS.fileDataStart], eax
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.writeBitmap:
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add ecx, eax
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add ecx, 4095
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shr ecx, 3+9
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@ -2631,16 +2656,22 @@ resizeAttribute:
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xor edx, edx
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call fs_write64_app
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test eax, eax
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jz .done
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movi eax, ERROR_DEVICE
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stc
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jnz @f
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.done:
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ret
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.err4:
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pop eax
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@@:
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movi eax, ERROR_DEVICE
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stc
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ret
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.err1:
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movi eax, ERROR_DISK_FULL
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add esp, 24
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stc
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.err10:
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movi eax, ERROR_DISK_FULL
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ret
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.err2:
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@ -2689,7 +2720,6 @@ resizeAttribute:
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call createMcbEntry
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mov [ebp+NTFS.fileDataSize], 0
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@@:
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mov byte [edi], 0
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ret
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.err3:
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@ -2698,6 +2728,171 @@ resizeAttribute:
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stc
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ret
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.resident:
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test edx, edx
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jnz .nonResident
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cmp eax, 8000h
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jnc .nonResident
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add ax, [esi+attributeOffset]
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sub eax, [esi+sizeWithHeader]
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jc @f
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mov edi, [ebp+NTFS.frs_buffer]
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mov ecx, eax
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add ecx, [edi+recordRealSize]
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cmp [edi+recordAllocatedSize], ecx
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jc .nonResident
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add eax, 7
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and eax, not 7
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add [edi+recordRealSize], eax
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add edi, [edi+recordRealSize]
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add [esi+sizeWithHeader], eax
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add esi, [esi+sizeWithHeader]
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mov ecx, edi
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sub ecx, esi
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shr ecx, 2
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sub edi, 4
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mov esi, edi
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sub esi, eax
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std
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rep movsd
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mov ecx, eax
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shr ecx, 2
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xor eax, eax
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rep stosd
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cld
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mov esi, [ebp+NTFS.ntfs_attr_offs]
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@@:
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mov eax, dword [ebp+NTFS.ntfs_attr_size]
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mov [esi+sizeWithoutHeader], eax
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mov [ebp+NTFS.fileDataSize], 0
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clc
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ret
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.nonResident: ; convert resident to non-resident
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mov eax, dword [ebp+NTFS.ntfs_attr_size]
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sub eax, 1
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sbb edx, 0
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mov ecx, [ebp+NTFS.sectors_per_cluster]
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shl ecx, 9
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div ecx
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inc eax
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mov [ebp+NTFS.fileDataSize], eax
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mov edi, [ebp+NTFS.BitmapStart]
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push ecx
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call ntfsSpaceAlloc
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pop ecx
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jc .err10
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mov [ebp+NTFS.fileDataStart], eax
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mov esi, [ebp+NTFS.ntfs_attr_offs]
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xor eax, eax
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xor edx, edx
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@@:
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add eax, ecx
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inc edx
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cmp eax, [esi+sizeWithoutHeader]
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jc @b
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push edx
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push eax
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stdcall kernel_alloc, eax
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mov ecx, [esp]
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shr ecx, 2
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mov edi, eax
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mov ebx, eax
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xor eax, eax
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rep stosd
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mov al, [esi+attributeOffset]
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mov ecx, [esi+sizeWithoutHeader]
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add esi, eax
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mov edi, ebx
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rep movsb
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mov eax, [ebp+NTFS.fileDataStart]
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mul [ebp+NTFS.sectors_per_cluster]
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pop ecx
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shr ecx, 9
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call fs_write64_app
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push ebx
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mov ebx, eax
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call kernel_free
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test ebx, ebx
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jnz .err4
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mov esi, [ebp+NTFS.ntfs_attr_offs]
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add esi, [esi+sizeWithHeader]
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mov ecx, [ebp+NTFS.frs_buffer]
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add ecx, [ecx+recordRealSize]
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sub ecx, esi
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shr ecx, 2
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lea edi, [ebp+NTFS.ntfs_bitmap_buf]
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push ecx
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rep movsd
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mov edi, [ebp+NTFS.ntfs_attr_offs]
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add edi, 16
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mov cl, 6
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xor eax, eax
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rep stosd
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mov edi, [ebp+NTFS.ntfs_attr_offs]
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mov eax, [ebp+NTFS.fileDataSize]
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dec eax
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mov [edi+lastVCN], eax
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inc eax
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mov ecx, [ebp+NTFS.sectors_per_cluster]
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shl ecx, 9
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mul ecx
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mov byte [edi+sizeWithHeader], 50h
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mov byte [edi+nonResidentFlag], 1
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mov byte [edi+dataRunsOffset], 40h
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mov [edi+attributeAllocatedSize], eax
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mov [edi+attributeAllocatedSize+4], edx
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mov eax, dword [ebp+NTFS.ntfs_attr_size]
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mov edx, dword [ebp+NTFS.ntfs_attr_size+4]
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mov [edi+attributeRealSize], eax
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mov [edi+attributeRealSize+4], edx
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mov [edi+initialDataSize], eax
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mov [edi+initialDataSize+4], edx
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mov esi, edi
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add edi, 40h
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call createMcbEntry
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mov eax, edi
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mov edi, [ebp+NTFS.ntfs_attr_offs]
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sub eax, edi
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add eax, 8
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and eax, not 7
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mov [edi+sizeWithHeader], eax
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pop ecx
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lea esi, [ebp+NTFS.ntfs_bitmap_buf]
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add edi, eax
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rep movsd
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mov esi, [ebp+NTFS.frs_buffer]
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sub edi, esi
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mov [esi+recordRealSize], edi
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pop edx
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mov ecx, [ebp+NTFS.fileDataSize]
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sub [ebp+NTFS.fileDataSize], edx
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mov eax, [ebp+NTFS.fileDataStart]
|
||||
add [ebp+NTFS.fileDataStart], edx
|
||||
jmp .writeBitmap
|
||||
|
||||
.makeResident: ; convert non-resident to empty resident
|
||||
movzx eax, byte [esi+dataRunsOffset]
|
||||
mov byte [esi+nonResidentFlag], 0
|
||||
mov dword [esi+sizeWithoutHeader], 0
|
||||
mov dword [esi+attributeOffset], 18h
|
||||
add esi, eax
|
||||
xor edi, edi
|
||||
sub esp, 16
|
||||
@@:
|
||||
call ntfs_decode_mcb_entry
|
||||
jnc @f
|
||||
cmp dword[esp+8], 0
|
||||
jz @b
|
||||
add edi, [esp+8]
|
||||
mov ebx, [esp]
|
||||
call ntfsSpaceFree
|
||||
jnc @b
|
||||
@@:
|
||||
add esp, 16
|
||||
mov [ebp+NTFS.fileDataSize], 0
|
||||
ret
|
||||
|
||||
ntfsSpaceClean:
|
||||
; clean up to 16 Mb of disk space
|
||||
; in:
|
||||
@ -3024,82 +3219,84 @@ ntfs_WriteFile:
|
||||
jc ntfsDenied
|
||||
bt dword [eax+fileFlags], 28
|
||||
jc ntfsDenied
|
||||
mov ecx, eax
|
||||
mov eax, [ebx+4]
|
||||
mov edx, [ebx+8]
|
||||
add eax, [ebx+12]
|
||||
adc edx, 0
|
||||
mov [ebp+NTFS.nodeLastRead], 0
|
||||
cmp edx, [ecx+fileRealSize+4]
|
||||
jc .readAttribute
|
||||
jnz @f
|
||||
cmp [ecx+fileRealSize], eax
|
||||
jnc .readAttribute
|
||||
@@: ; set file size in the directory
|
||||
cmp [ebp+NTFS.ntfsFragmentCount], 1
|
||||
jnz ntfsUnsupported ; record fragmented
|
||||
; edit directory node
|
||||
mov edi, [ebp+NTFS.cur_index_buf]
|
||||
cmp dword [edi], 'INDX'
|
||||
jz @f
|
||||
mov esi, [ebp+NTFS.frs_buffer]
|
||||
push ecx
|
||||
mov ecx, [esi+recordRealSize]
|
||||
shr ecx, 2
|
||||
rep movsd
|
||||
mov esi, [ebp+NTFS.ntfs_attr_offs]
|
||||
mov cl, [esi+attributeOffset]
|
||||
sub esi, [ebp+NTFS.frs_buffer]
|
||||
add esi, ecx
|
||||
pop ecx
|
||||
add ecx, esi
|
||||
add eax, ecx
|
||||
add eax, esi
|
||||
@@:
|
||||
mov [ecx+fileRealSize], eax
|
||||
mov [ecx+fileRealSize+4], edx
|
||||
mov ecx, [ebp+NTFS.ntfsLastRead]
|
||||
mov [ebp+NTFS.nodeLastRead], ecx
|
||||
.readAttribute:
|
||||
mov ecx, [ebx+4]
|
||||
mov edx, [ebx+8]
|
||||
add ecx, [ebx+12]
|
||||
adc edx, 0
|
||||
mov [eax+fileRealSize], ecx
|
||||
mov [eax+fileRealSize+4], edx
|
||||
mov eax, [ebp+NTFS.ntfsLastRead]
|
||||
mov [ebp+NTFS.nodeLastRead], eax
|
||||
mov [ebp+NTFS.ntfs_cur_attr], 0x80
|
||||
mov [ebp+NTFS.ntfs_cur_offs], 0
|
||||
mov [ebp+NTFS.ntfs_cur_size], 0
|
||||
push eax
|
||||
call ntfs_read_attr
|
||||
pop eax
|
||||
jc ntfsFail
|
||||
mov eax, ecx
|
||||
mov ecx, [ebp+NTFS.frs_buffer]
|
||||
cmp word [ecx+baseRecordReuse], 0
|
||||
jnz ntfsUnsupported ; auxiliary record
|
||||
mov ecx, [ebp+NTFS.ntfs_attr_offs]
|
||||
cmp byte [ecx+nonResidentFlag], 1
|
||||
jnz ntfsUnsupported ; resident $DATA
|
||||
cmp word [ecx+attributeFlags], 0
|
||||
jnz ntfsUnsupported
|
||||
push ebx
|
||||
cmp byte [ecx+nonResidentFlag], 0
|
||||
jz .resizeAttribute
|
||||
cmp edx, [ecx+attributeRealSize+4]
|
||||
jc .writeNode
|
||||
jnz .resizeAttribute
|
||||
cmp [ecx+attributeRealSize], eax
|
||||
jnc .writeNode
|
||||
.resizeAttribute:
|
||||
push ebx
|
||||
call resizeAttribute
|
||||
jc ntfsErrorPop
|
||||
mov ecx, [ebp+NTFS.ntfs_attr_offs]
|
||||
cmp byte [ecx+nonResidentFlag], 1
|
||||
jz @f
|
||||
mov ebx, [esp]
|
||||
movzx edi, byte [ecx+attributeOffset]
|
||||
add edi, ecx
|
||||
add edi, [ebx+4]
|
||||
mov ecx, [ebx+12]
|
||||
mov esi, [ebx+16]
|
||||
rep movsb
|
||||
@@:
|
||||
mov eax, [ebp+NTFS.frs_buffer]
|
||||
mov [ebp+NTFS.ntfs_cur_buf], eax
|
||||
call writeRecord ; file
|
||||
mov ebx, [ebp+NTFS.frs_buffer]
|
||||
call ntfs_restore_usa_frs
|
||||
pop ebx
|
||||
.writeNode:
|
||||
mov eax, [ebp+NTFS.nodeLastRead]
|
||||
test eax, eax
|
||||
jz .writeData
|
||||
mov [ebp+NTFS.ntfsLastRead], eax
|
||||
mov eax, [ebp+NTFS.cur_index_buf]
|
||||
mov [ebp+NTFS.ntfs_cur_buf], eax
|
||||
push ebx
|
||||
call writeRecord ; directory
|
||||
pop ebx
|
||||
.writeData:
|
||||
mov ecx, [ebp+NTFS.ntfs_attr_offs]
|
||||
cmp byte [ecx+nonResidentFlag], 0
|
||||
jz .done
|
||||
mov ecx, [ebx+12]
|
||||
test ecx, ecx
|
||||
jz .done
|
||||
mov eax, [ebx+4]
|
||||
mov edx, [ebx+8]
|
||||
mov ecx, [ebx+12]
|
||||
mov esi, [ebx+16]
|
||||
shrd eax, edx, 9
|
||||
test dword[ebx+4], 1FFh
|
||||
@ -3131,7 +3328,7 @@ ntfs_WriteFile:
|
||||
pop ebx
|
||||
pop ecx
|
||||
test ecx, ecx
|
||||
jz @f
|
||||
jz .done
|
||||
mov eax, [ebx+4]
|
||||
mov edx, [ebx+8]
|
||||
shrd eax, edx, 9
|
||||
@ -3151,7 +3348,7 @@ ntfs_WriteFile:
|
||||
pop ecx
|
||||
jc ntfsDevice
|
||||
and ecx, 1FFh
|
||||
jz @f
|
||||
jz .done
|
||||
add esi, [ebp+NTFS.ntfs_cur_read]
|
||||
mov [ebp+NTFS.ntfs_cur_size], 1
|
||||
lea edi, [ebp+NTFS.ntfs_bitmap_buf]
|
||||
@ -3166,7 +3363,7 @@ ntfs_WriteFile:
|
||||
xor edx, edx
|
||||
call fs_write64_app
|
||||
pop ebx
|
||||
@@:
|
||||
.done:
|
||||
mov ebx, [ebx+12]
|
||||
jmp ntfsDone
|
||||
|
||||
@ -3319,7 +3516,7 @@ ntfs_SetFileEnd:
|
||||
jc ntfsDenied
|
||||
cmp [ebp+NTFS.ntfsFragmentCount], 1
|
||||
jnz ntfsUnsupported ; record fragmented
|
||||
; set file size in the directory
|
||||
; edit directory node
|
||||
mov edi, [ebp+NTFS.cur_index_buf]
|
||||
cmp dword [edi], 'INDX'
|
||||
jz @f
|
||||
@ -3349,8 +3546,10 @@ ntfs_SetFileEnd:
|
||||
cmp word [ecx+baseRecordReuse], 0
|
||||
jnz ntfsUnsupported ; auxiliary record
|
||||
mov ecx, [ebp+NTFS.ntfs_attr_offs]
|
||||
cmp byte [ecx+nonResidentFlag], 1
|
||||
jnz ntfsUnsupported ; resident $DATA
|
||||
cmp word [ecx+attributeFlags], 0
|
||||
jnz ntfsUnsupported
|
||||
cmp byte [ecx+nonResidentFlag], 0
|
||||
jz .resizeAttribute
|
||||
cmp [ecx+attributeRealSize+4], edx
|
||||
jnz .resizeAttribute
|
||||
cmp [ecx+attributeRealSize], eax
|
||||
|
||||
Loading…
Reference in New Issue
Block a user