exFAT_SetFileInfo - set attributes of file/folder (F70.6)

git-svn-id: svn://kolibrios.org@9744 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Marat Zakiyanov 2022-03-20 09:10:06 +00:00
parent 0e38558cb0
commit 5d12a6e4a5

View File

@ -25,7 +25,7 @@ exFAT_user_functions:
dd 0 ;exFAT_Write
dd 0 ;exFAT_SetFileEnd
dd exFAT_GetFileInfo
dd 0 ;exFAT_SetFileInfo
dd exFAT_SetFileInfo
dd 0
dd 0 ;exFAT_Delete
dd 0 ;exFAT_CreateFolder
@ -73,11 +73,16 @@ RDI_high dd ?
current_hash dd ?
hash_flag dd ?
need_hash dd ?
buffer_curr_sector dd ?
buff_file_dirsect dd ?
buff_file_dir_pos dd ?
fname_extdir_offset dd ?
volumeLabel rb 12
; The next two areas (32+32) should be arranged sequentially.
; The next nine areas (32*17) should be arranged sequentially.
; Do not change their location!!!
file_dir_entry rb 32 ; Entry Type 0x85
str_ext_dir_entry rb 32 ; Entry Type 0xC0
fname_ext_dir_entry rb 32*17 ; Entry Type 0xC1 * 17 Entries
buffer rb 512
ends
@ -368,6 +373,13 @@ exFAT_get_name:
;--------------------------------------
.file_directory_entry:
; DEBUGF 1, "K : exFAT_get_name 0x85\n"
mov eax, [ebp+exFAT.buffer_curr_sector]
mov [ebp+exFAT.buff_file_dirsect], eax
mov [ebp+exFAT.buff_file_dir_pos], edi
lea eax, [ebp+exFAT.fname_ext_dir_entry]
mov [ebp+exFAT.fname_extdir_offset], eax
xor eax, eax
mov [ebp+exFAT.hash_flag], eax ; dword 0
mov al, byte [edi+1] ; Number of Secondary directory entries
@ -434,8 +446,26 @@ exFAT_get_name:
test eax, eax
jnz .no
; DEBUGF 1, "K : exFAT_get_name.longname hash match! \n"
push edi esi
; copy File Name Extension Directory Entry [0xC1] for calculate SetChecksum Field
lea eax, [ebp+exFAT.fname_ext_dir_entry+32*17]
cmp eax, [ebp+exFAT.fname_extdir_offset]
je .no
push edi esi
xchg esi, edi
mov edi, [ebp+exFAT.fname_extdir_offset]
movsd
movsd
movsd
movsd
movsd
movsd
movsd
movsd
mov [ebp+exFAT.fname_extdir_offset], edi
pop esi edi
; copy name
push edi esi
xchg esi, edi
add esi, 2
@ -566,6 +596,65 @@ exFAT_entry_to_bdfe2:
; DEBUGF 1, "K : exFAT_entry_to_bdfe +520 ESI:%x\n", esi
ret
;------------------------------------------------------------------------------
exFAT_bdfe_to_fat_entry:
; convert BDFE at edx to FAT entry at edi
; destroys eax
; attributes byte
; test byte [edi+11], 8 ; volume label?
; jnz @f
mov al, [edx]
; movzx eax, al
; DEBUGF 1, "K : bdfe file attributes: %x\n", eax
and al, 0x27
; and byte [edi+11], 0x10
; or byte [edi+11], al
and byte [edi+4], 0x10
or byte [edi+4], al
; movzx eax, byte [edi+4]
; DEBUGF 1, "K : exFAT file attributes: %x\n", eax
;@@:
mov eax, [edx+8]
; DEBUGF 1, "K : bdfe creation time: %x\n", eax
call bdfe_to_fat_time
; mov [edi+14], ax ; creation time
mov [edi+8], ax ; creation time
; DEBUGF 1, "K : exFAT creation time: %x\n", ax
mov eax, [edx+12]
; DEBUGF 1, "K : bdfe creation date: %x\n", eax
call bdfe_to_fat_date
; mov [edi+16], ax ; creation date
mov [edi+8+2], ax ; creation date
; DEBUGF 1, "K : exFAT creation date: %x\n", ax
mov eax, [edx+16]
; DEBUGF 1, "K : bdfe access time: %x\n", eax
call bdfe_to_fat_time
mov [edi+16], ax ; last access time
; DEBUGF 1, "K : exFAT access time: %x\n", ax
mov eax, [edx+20]
; DEBUGF 1, "K : bdfe access date: %x\n", eax
call bdfe_to_fat_date
; mov [edi+18], ax ; last access date
mov [edi+16+2], ax ; last access date
; DEBUGF 1, "K : exFAT access date: %x\n", ax
mov eax, [edx+24]
; DEBUGF 1, "K : bdfe write time: %x\n", eax
call bdfe_to_fat_time
; mov [edi+22], ax ; last write time
mov [edi+12], ax ; last write time
; DEBUGF 1, "K : exFAT write time: %x\n", ax
mov eax, [edx+28]
; DEBUGF 1, "K : bdfe write date: %x\n", eax
call bdfe_to_fat_date
; mov [edi+24], ax ; last write date
mov [edi+12+2], ax ; last write date
; DEBUGF 1, "K : exFAT write date: %x\n", ax
ret
;------------------------------------------------------------------------------
exFAT_get_FAT:
; DEBUGF 1, "K : exFAT_get_FAT \n"
; in: eax = cluster
@ -1823,6 +1912,161 @@ exFAT_GetFileInfo:
loop @b
ret
;------------------------------------------------------------------------------
exFAT_SetFileInfo:
; DEBUGF 1, "K : exFAT_SetFileInfo \n"
; DEBUGF 1, "K : exFAT F70 +00: %x\n", [ebx]
; DEBUGF 1, "K : exFAT F70 +04: %x\n", [ebx+4]
; DEBUGF 1, "K : exFAT F70 +08: %x\n", [ebx+8]
; DEBUGF 1, "K : exFAT F70 +12: %x\n", [ebx+12]
; DEBUGF 1, "K : exFAT F70 +16: %x\n", [ebx+16]
; DEBUGF 1, "K : exFAT F70 +20: %x\n", [ebx+20]
; DEBUGF 1, "K : exFAT Path: %s\n", esi
call exFAT_lock
xor eax, eax
mov [ebp+exFAT.need_hash], eax ; dword 0
mov [ebp+exFAT.hash_flag], eax ; dword 0
call exFAT_hd_find_lfn
jc @f
mov edi, [ebp+exFAT.buff_file_dir_pos]
cmp eax, [ebp+exFAT.buff_file_dirsect]
je .continue
mov eax, [ebp+exFAT.buff_file_dirsect]
mov [ebp+exFAT.buffer_curr_sector], eax
push eax ebx
lea ebx, [ebp+exFAT.buffer]
call fs_read32_sys
test eax, eax
jz .continue_1 ; CF=0
pop ebx
add esp, 4
jmp @f
.continue_1:
pop ebx eax
.continue:
push eax
mov edx, [ebx+16] ; pointer to buffer with attributes (32 bytes)
call exFAT_bdfe_to_fat_entry
pop eax
; copy new File/Folder Directory Entry [0x85] for calculate SetChecksum field
push esi edi
xchg esi, edi
lea edi, [ebp+exFAT.file_dir_entry]
movsd
movsd
movsd
movsd
movsd
movsd
movsd
movsd
pop edi esi
push eax
call calculate_SetChecksum_field
mov [edi+2], ax
pop eax
lea ebx, [ebp+exFAT.buffer]
call fs_write32_sys
call exFAT_update_disk
xor eax, eax
@@:
push eax
call exFAT_unlock
pop eax
ret
;------------------------------------------------------------------------------
calculate_SetChecksum_field:
push ebx ecx edx esi edi
lea esi, [ebp+exFAT.file_dir_entry]
mov ecx, [ebp+exFAT.fname_extdir_offset]
sub ecx, esi
mov edx, esi
mov edi, esi
add edx, 2 ; (Index == 2)
add edi, 3 ; (Index == 3)
; exFAT_calculate_SetChecksum_field
; in:
; esi -> file_dir_entry
; ecx -> NumberOfBytes
; out: ax = Checksum
xor eax, eax
xor ebx, ebx
;--------------------------------------
align 4
.start:
; DEBUGF 1, "Checksum start EAX:%x ECX:%x\n", eax, ecx
cmp esi, edx ; (Index == 2)
je .continue
cmp esi, edi ; (Index == 3)
je .continue
mov bx, ax
; ((Checksum&1) ? 0x8000 : 0)
and ax, 0x1
jz .else
mov ax, 0x8000
jmp @f
;--------------------------------------
.else:
xor ax, ax
;--------------------------------------
@@:
; DEBUGF 1, "(Checksum&1) EAX:%x\n", eax
; (Hash>>1)
shr bx, 1
; DEBUGF 1, "(Checksum>>1) EBX:%x\n", ebx
add ax, bx
; DEBUGF 1, "+ (Checksum>>1) EAX:%x\n", eax
movzx bx, byte [esi]
add ax, bx
; DEBUGF 1, "+ (UInt16)Entries[Index] EAX:%x\n", eax
.continue:
inc esi
dec ecx
jnz .start
;--------------------------------------
lea ebx, [ebp+exFAT.file_dir_entry+2]
mov [ebx], ax
pop edi esi edx ecx ebx
ret
;------------------------------------------------------------------------------
exFAT_update_disk:
cmp [ebp+exFAT.fat_change], 0
jz .noChange
; cmp [ebp+FAT.fs_type], 12
; jz .fat12
call exFAT_write_fat_sector
.noChange:
mov esi, [ebp+PARTITION.Disk]
call disk_sync
ret
;------------------------------------------------------------------------------
exFAT_write_fat_sector:
push eax ebx ecx
mov [ebp+exFAT.fat_change], 0
mov eax, [ebp+exFAT.fat_in_cache]
cmp eax, -1
jz @f
mov ebx, [ebp+exFAT.fat_cache_ptr]
mov ecx, [ebp+exFAT.NUMBER_OF_FATS]
.write_next_fat:
push eax
call fs_write32_sys
pop eax
add eax, [ebp+exFAT.SECTORS_PER_FAT]
dec ecx
jnz .write_next_fat
@@:
pop ecx ebx eax
ret
;------------------------------------------------------------------------------
exFAT_notroot_next:
; DEBUGF 1, "K : exFAT_notroot_next\n"
push ecx
@ -1920,6 +2164,7 @@ exFAT_notroot_first:
lea edi, [ebp+exFAT.buffer]
mov ebx, edi
sub [ebp+exFAT.valid_data_length], 512
mov [ebp+exFAT.buffer_curr_sector], eax
call fs_read32_sys
pop ebx
test eax, eax