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