forked from KolibriOS/kolibrios
NTFS: advanced file creation
git-svn-id: svn://kolibrios.org@6407 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
pathoswithin
parent
ea3f3441bb
commit
32f17daf2a
@ -604,7 +604,6 @@ ntfs_read_attr:
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mov eax, [ebp+NTFS.cur_iRecord]
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mov eax, [ebp+NTFS.cur_iRecord]
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mov [ebp+NTFS.attr_iRecord], eax
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mov [ebp+NTFS.attr_iRecord], eax
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and [ebp+NTFS.attr_list], 0
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and [ebp+NTFS.attr_list], 0
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or dword [ebp+NTFS.attr_size], -1
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or dword [ebp+NTFS.attr_size+4], -1
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or dword [ebp+NTFS.attr_size+4], -1
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or [ebp+NTFS.attr_iBaseRecord], -1
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or [ebp+NTFS.attr_iBaseRecord], -1
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call ntfs_read_file_record
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call ntfs_read_file_record
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@ -707,7 +706,6 @@ ntfs_read_attr:
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push [ebp+NTFS.cur_buf]
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push [ebp+NTFS.cur_buf]
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push dword [ebp+NTFS.attr_size]
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push dword [ebp+NTFS.attr_size]
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push dword [ebp+NTFS.attr_size+4]
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push dword [ebp+NTFS.attr_size+4]
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or dword [ebp+NTFS.attr_size], -1
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or dword [ebp+NTFS.attr_size+4], -1
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or dword [ebp+NTFS.attr_size+4], -1
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and [ebp+NTFS.cur_offs], 0
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and [ebp+NTFS.cur_offs], 0
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mov [ebp+NTFS.cur_size], 2
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mov [ebp+NTFS.cur_size], 2
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@ -756,9 +754,7 @@ ntfs_read_attr:
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mov eax, [esi+8]
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mov eax, [esi+8]
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test eax, eax
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test eax, eax
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jnz .testf
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jnz .testf
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mov eax, dword [ebp+NTFS.attr_size]
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cmp dword [ebp+NTFS.attr_size+4], -1
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and eax, dword [ebp+NTFS.attr_size+4]
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cmp eax, -1
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jnz .testfz
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jnz .testfz
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; if attribute is in auxiliary records, its size is defined only in first
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; if attribute is in auxiliary records, its size is defined only in first
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mov eax, [esi+10h]
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mov eax, [esi+10h]
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@ -845,7 +841,6 @@ ntfs_read_attr:
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push [ebp+NTFS.cur_buf]
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push [ebp+NTFS.cur_buf]
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push dword [ebp+NTFS.attr_size]
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push dword [ebp+NTFS.attr_size]
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push dword [ebp+NTFS.attr_size+4]
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push dword [ebp+NTFS.attr_size+4]
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or dword [ebp+NTFS.attr_size], -1
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or dword [ebp+NTFS.attr_size+4], -1
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or dword [ebp+NTFS.attr_size+4], -1
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mov [ebp+NTFS.cur_offs], edx
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mov [ebp+NTFS.cur_offs], edx
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mov [ebp+NTFS.cur_size], 1
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mov [ebp+NTFS.cur_size], 1
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@ -907,10 +902,7 @@ ntfs_read_attr:
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; Not all auxiliary records contain correct FileSize info
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; Not all auxiliary records contain correct FileSize info
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mov eax, dword [ebp+NTFS.attr_size]
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mov eax, dword [ebp+NTFS.attr_size]
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mov edx, dword [ebp+NTFS.attr_size+4]
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mov edx, dword [ebp+NTFS.attr_size+4]
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push eax
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cmp edx, -1
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and eax, edx
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cmp eax, -1
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pop eax
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jnz @f
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jnz @f
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mov eax, [ecx+attributeRealSize]
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mov eax, [ecx+attributeRealSize]
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mov edx, [ecx+attributeRealSize+4]
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mov edx, [ecx+attributeRealSize+4]
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@ -1984,7 +1976,7 @@ ntfs_CreateFile:
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mov [esi+recordRealSize], edx
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mov [esi+recordRealSize], edx
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shr ecx, 2
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shr ecx, 2
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rep movsd
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rep movsd
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mov edi, [ebp+NTFS.attr_offs]
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mov edi, [ebp+NTFS.indexRoot]
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sub edi, [ebp+NTFS.frs_buffer]
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sub edi, [ebp+NTFS.frs_buffer]
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add edi, [ebp+NTFS.cur_index_buf]
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add edi, [ebp+NTFS.cur_index_buf]
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mov esi, [esp]
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mov esi, [esp]
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@ -2000,26 +1992,20 @@ ntfs_CreateFile:
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jmp .common
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jmp .common
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.growTree:
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.growTree:
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sub eax, edi
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sub eax, rootNode
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sub eax, [edi+rootNode+indexOffset]
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push eax
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xchg [ebp+NTFS.secondIndexBuffer], edi
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xchg [ebp+NTFS.secondIndexBuffer], edi
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mov [ebp+NTFS.cur_index_buf], edi
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mov [ebp+NTFS.cur_index_buf], edi
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; create indexRecord
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; create indexRecord
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mov ecx, 10
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mov ecx, 10
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xor eax, eax
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xor eax, eax
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rep stosd
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rep stosd
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mov esi, [ebp+NTFS.attr_offs]
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mov esi, [ebp+NTFS.indexRoot]
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mov al, [esi+attributeOffset]
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mov al, [esi+attributeOffset]
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add esi, eax
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add esi, eax
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mov al, [esi+indexRecordSizeClus]
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mov [ebp+NTFS.fileDataSize], eax
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rdtsc
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rdtsc
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stosw
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stosw
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mov eax, [esi+indexRecordSize]
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mov eax, [esi+indexRecordSize]
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cmp eax, [ebp+NTFS.frs_size]
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cmp eax, [ebp+NTFS.frs_size]
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jc .errorPop4
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jc .errorPop3
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shr eax, 9
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shr eax, 9
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inc eax
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inc eax
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mov edi, [ebp+NTFS.cur_index_buf]
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mov edi, [ebp+NTFS.cur_index_buf]
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@ -2056,27 +2042,51 @@ ntfs_CreateFile:
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mov byte [edi+nonLeafFlag], 1
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mov byte [edi+nonLeafFlag], 1
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mov byte [edi+16+indexAllocatedSize], 18h
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mov byte [edi+16+indexAllocatedSize], 18h
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mov byte [edi+16+indexFlags], 3
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mov byte [edi+16+indexFlags], 3
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mov esi, [ebp+NTFS.attr_offs]
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mov esi, [ebp+NTFS.indexRoot]
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add edi, 28h
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add edi, 28h
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mov eax, edi
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mov eax, edi
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sub eax, esi
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sub eax, esi
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mov word [esi+sizeWithoutHeader], 38h
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mov word [esi+sizeWithoutHeader], 38h
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xchg [esi+sizeWithHeader], eax
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xchg [esi+sizeWithHeader], eax
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cmp byte [esi+eax], -1
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add esi, eax
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jnz .errorPop4
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mov [ebp+NTFS.attr_offs], edi
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cmp byte [esi], 0xA0
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jnz @f
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cmp dword [esi+attributeAllocatedSize], 0
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jz @f
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mov eax, [ebp+NTFS.frs_buffer]
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mov ecx, eax
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add ecx, [eax+recordRealSize]
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sub ecx, esi
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shr ecx, 2
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rep movsd
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sub edi, eax
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mov [eax+recordRealSize], edi
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call .ntfsNodeAlloc
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jc ntfsErrorPop3
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mov eax, [ebp+NTFS.newRecord]
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mov edi, [ebp+NTFS.cur_index_buf]
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mov [edi+recordVCN], eax
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mov edi, [ebp+NTFS.attr_offs]
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mov [edi-8], eax
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jmp .refresh
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@@:
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mov cl, 32
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mov cl, 32
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xor eax, eax
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xor eax, eax
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push edi
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rep stosd
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rep stosd
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mov eax, [ebp+NTFS.cur_subnode_size]
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cmp eax, [ebp+NTFS.cur_size]
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jnz @f
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mov al, 1
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@@:
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mov [ebp+NTFS.fileDataSize], eax
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mov edi, [ebp+NTFS.BitmapStart]
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mov edi, [ebp+NTFS.BitmapStart]
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call ntfsSpaceAlloc
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call ntfsSpaceAlloc
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jnc @f
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movi eax, ERROR_DISK_FULL
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add esp, 20
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jc ntfsErrorPop3
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jmp ntfsDiskFull
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; create $IndexAllocation
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mov edi, [ebp+NTFS.attr_offs]
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@@: ; create $IndexAllocation
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pop edi
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mov [ebp+NTFS.attr_offs], edi
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mov byte [edi+attributeType], 0xA0
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mov byte [edi+attributeType], 0xA0
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mov byte [edi+nonResidentFlag], 1
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mov byte [edi+nonResidentFlag], 1
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mov byte [edi+nameLength], 4
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mov byte [edi+nameLength], 4
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@ -2121,24 +2131,31 @@ ntfs_CreateFile:
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add edi, 30h
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add edi, 30h
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sub edi, esi
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sub edi, esi
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mov [esi+recordRealSize], edi
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mov [esi+recordRealSize], edi
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mov [ebp+NTFS.cur_buf], esi
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call writeRecord ; fileRecord
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mov eax, [ebp+NTFS.fileDataStart]
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mov eax, [ebp+NTFS.fileDataStart]
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mul [ebp+NTFS.sectors_per_cluster]
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mul [ebp+NTFS.sectors_per_cluster]
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mov [ebp+NTFS.LastRead], eax
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mov [ebp+NTFS.LastRead], eax
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jmp @f
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.refresh:
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mov [ebp+NTFS.cur_size], 0
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mov dword [ebp+NTFS.attr_size+4], -1
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call ntfs_read_attr.continue
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movi eax, ERROR_FS_FAIL
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jc ntfsErrorPop3
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@@:
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mov eax, [ebp+NTFS.cur_index_buf]
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mov eax, [ebp+NTFS.cur_index_buf]
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mov [ebp+NTFS.cur_buf], eax
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mov [ebp+NTFS.cur_buf], eax
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call writeRecord ; indexRecord
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call writeRecord
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mov ebx, [ebp+NTFS.cur_index_buf]
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mov eax, [ebp+NTFS.rootLastRead]
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mov ax, [ebx+updateSequenceSize]
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mov [ebp+NTFS.LastRead], eax
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dec eax
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mov eax, [ebp+NTFS.frs_buffer]
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shl eax, 9
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mov [ebp+NTFS.cur_buf], eax
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call ntfs_restore_usa
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call writeRecord
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mov esi, [esp+4]
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stdcall ntfs_find_lfn.doit2, 0
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test eax, eax
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jz .errorPop3
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mov edi, [ebp+NTFS.cur_index_buf]
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mov edi, [ebp+NTFS.cur_index_buf]
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pop eax
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add eax, recordNode
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add eax, edi
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add eax, [edi+recordNode+indexOffset]
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mov edx, [esp]
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mov edx, [esp]
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.indexRecord:
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.indexRecord:
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add edi, recordNode
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add edi, recordNode
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@ -2148,28 +2165,50 @@ ntfs_CreateFile:
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mov [edi+nodeRealSize], edx
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mov [edi+nodeRealSize], edx
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jmp .common
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jmp .common
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.errorPop4:
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pop eax
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.errorPop3:
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.errorPop3:
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add esp, 12
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add esp, 12
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jmp ntfsUnsupported
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jmp ntfsUnsupported
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.arborizeTree:
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.ntfsNodeAlloc:
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; directory bitmap
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; in: [ebp+NTFS.attr_offs] -> $IndexAllocation
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; out:
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; [ebp+NTFS.newRecord] = node VCN
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; [ebp+NTFS.cur_offs]
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; CF=1 -> eax = error code
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mov esi, [ebp+NTFS.attr_offs]
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mov esi, [ebp+NTFS.attr_offs]
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add esi, [esi+sizeWithHeader]
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add esi, [esi+sizeWithHeader]
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cmp byte [esi], 0xB0
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cmp byte [esi], 0xB0
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jnz .errorPop3
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jnz .ret
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movzx eax, byte [esi+attributeOffset]
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movzx eax, byte [esi+attributeOffset]
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add esi, eax
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add esi, eax
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mov eax, [esi]
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mov eax, [esi]
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not eax
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not eax
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bsf eax, eax
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bsf eax, eax
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jz .errorPop3
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jz .ret
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bts [esi], eax
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bts [esi], eax
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mul [ebp+NTFS.cur_subnode_size]
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mul [ebp+NTFS.cur_subnode_size]
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mov [ebp+NTFS.newRecord], eax
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mov [ebp+NTFS.newRecord], eax
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; find median index
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mov ecx, [ebp+NTFS.cur_size]
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cmp ecx, [ebp+NTFS.cur_subnode_size]
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jz @f
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mul [ebp+NTFS.sectors_per_cluster]
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@@:
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mov [ebp+NTFS.cur_offs], eax
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add eax, ecx
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shl eax, 9
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mov esi, [ebp+NTFS.attr_offs]
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cmp [esi+attributeAllocatedSize], eax
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jnc @f
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xor edx, edx
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jmp resizeAttribute
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.ret:
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movi eax, ERROR_UNSUPPORTED_FS
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stc
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@@:
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ret
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.arborizeTree: ; find median index
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mov ecx, [edi+nodeRealSize]
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mov ecx, [edi+nodeRealSize]
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sub ecx, [edi+indexOffset]
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sub ecx, [edi+indexOffset]
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shr ecx, 1
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shr ecx, 1
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@ -2180,18 +2219,24 @@ ntfs_CreateFile:
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mov ax, [edi+indexAllocatedSize]
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mov ax, [edi+indexAllocatedSize]
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sub ecx, eax
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sub ecx, eax
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jnc @b
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jnc @b
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add eax, 8
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mov esi, [ebp+NTFS.secondIndexBuffer]
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mov esi, [ebp+NTFS.secondIndexBuffer]
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cmp dword [esi], 'INDX'
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cmp dword [esi], 'INDX'
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jz .errorPop3 ; move index to the branch node
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jz .errorPop3 ; move index to the branch node
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; move index to the root node
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; move index to the root node
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mov esi, [ebp+NTFS.frs_buffer]
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mov esi, [ebp+NTFS.frs_buffer]
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mov ecx, [esi+recordRealSize]
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mov ecx, eax
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add eax, 8
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add ecx, 8
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add ecx, eax
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add ecx, [esi+recordRealSize]
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cmp [esi+recordAllocatedSize], ecx
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cmp [esi+recordAllocatedSize], ecx
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jc .errorPop3 ; tree grow required
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jc .errorPop3 ; tree grow required
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sub ecx, 8
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mov [esi+recordRealSize], ecx
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mov [esi+recordRealSize], ecx
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add esi, ecx
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add esi, ecx
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push edi eax esi
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call .ntfsNodeAlloc
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pop esi eax edi
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jc ntfsErrorPop3
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push edi
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push edi
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mov edi, [ebp+NTFS.indexRoot]
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mov edi, [ebp+NTFS.indexRoot]
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add [ebp+NTFS.attr_offs], eax
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add [ebp+NTFS.attr_offs], eax
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@ -2255,45 +2300,14 @@ ntfs_CreateFile:
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mov byte [esi+indexFlags], 2
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mov byte [esi+indexFlags], 2
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mov esi, [ebp+NTFS.cur_index_buf]
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mov esi, [ebp+NTFS.cur_index_buf]
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mov eax, [ebp+NTFS.newRecord]
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mov eax, [ebp+NTFS.newRecord]
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movzx edx, word [esi+updateSequenceSize]
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dec edx
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mov [esi+recordVCN], eax
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mov [esi+recordVCN], eax
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add esi, recordNode
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add esi, recordNode
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sub edi, esi
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sub edi, esi
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mov [esi+nodeRealSize], edi
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mov [esi+nodeRealSize], edi
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; allocate new node
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add eax, [ebp+NTFS.cur_subnode_size]
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cmp edx, [ebp+NTFS.cur_subnode_size]
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jz @f
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mul [ebp+NTFS.sectors_per_cluster]
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@@:
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shl eax, 9
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mov esi, [ebp+NTFS.attr_offs]
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cmp [esi+attributeAllocatedSize], eax
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jnc .errorPop3
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call resizeAttribute
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jc ntfsErrorPop3
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mov eax, [ebp+NTFS.secondIndexBuffer]
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mov eax, [ebp+NTFS.secondIndexBuffer]
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mov [ebp+NTFS.cur_buf], eax
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mov [ebp+NTFS.cur_buf], eax
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call writeRecord
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call writeRecord
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mov eax, [ebp+NTFS.fileDataStart]
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jmp .refresh
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mul [ebp+NTFS.sectors_per_cluster]
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mov [ebp+NTFS.LastRead], eax
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mov eax, [ebp+NTFS.cur_index_buf]
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mov [ebp+NTFS.cur_buf], eax
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||||||
call writeRecord
|
|
||||||
mov eax, [ebp+NTFS.rootLastRead]
|
|
||||||
mov [ebp+NTFS.LastRead], eax
|
|
||||||
mov eax, [ebp+NTFS.frs_buffer]
|
|
||||||
mov [ebp+NTFS.cur_buf], eax
|
|
||||||
call writeRecord
|
|
||||||
mov esi, [esp+4]
|
|
||||||
stdcall ntfs_find_lfn.doit2, 0
|
|
||||||
test eax, eax
|
|
||||||
jz .errorPop3
|
|
||||||
mov edi, [ebp+NTFS.cur_index_buf]
|
|
||||||
mov edx, [esp]
|
|
||||||
jmp .indexRecord
|
|
||||||
|
|
||||||
.common:
|
.common:
|
||||||
add edi, edx
|
add edi, edx
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user