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ext fs and other global cleaning

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git-svn-id: svn://kolibrios.org@6462 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
pathoswithin 2016-07-13 01:01:16 +00:00
parent 326d13ad14
commit 0179d69549
13 changed files with 2896 additions and 5281 deletions
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2508
kernel/trunk/fs/ext.inc Normal file
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412
kernel/trunk/fs/ext2/blocks.inc
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Contains ext2 block handling code. ;;
;; ;;
;; Copyright (C) KolibriOS team 2013-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
;---------------------------------------------------------------------
; Write ext2 block from memory to disk.
; Input: eax = i_block (block number in ext2 terms);
; ebx = buffer address
; ebp = pointer to EXTFS
; Output: eax = error code (0 implies no error)
;---------------------------------------------------------------------
ext2_block_write:
push edx ebx ecx
mov edx, fs_write32_sys
jmp ext2_block_modify
;---------------------------------------------------------------------
; Read ext2 block from disk to memory.
; Input: eax = i_block (block number in ext2 terms);
; ebx = address of where to read block
; ebp = pointer to EXTFS
; Output: eax = error code (0 implies no error)
;---------------------------------------------------------------------
ext2_block_read:
push edx ebx ecx
mov edx, fs_read32_sys
jmp ext2_block_modify
;---------------------------------------------------------------------
; Modify ext2 block.
; Input: eax = i_block (block number in ext2 terms);
; ebx = I/O buffer address;
; edx = fs_read/write32_sys
; ebp = pointer to EXTFS
; edx, ebx, ecx on stack.
; Output: eax = error code (0 implies no error)
;---------------------------------------------------------------------
ext2_block_modify:
; Get block number in hard-disk terms in eax.
mov ecx, [ebp + EXTFS.log_block_size]
shl eax, cl
mov ecx, eax
push [ebp + EXTFS.count_block_in_block]
@@:
mov eax, ecx
call edx
test eax, eax
jnz .fail
inc ecx
add ebx, 512
dec dword[esp]
jnz @B
xor eax, eax
@@:
pop ecx
pop ecx ebx edx
ret
.fail:
mov eax, ERROR_DEVICE
jmp @B
;---------------------------------------------------------------------
; Zeroes a block.
; Input: ebx = block ID.
; ebp = pointer to EXTFS.
; Output: eax = error code.
;---------------------------------------------------------------------
ext2_block_zero:
push ebx
mov eax, ebx
mov ebx, [ebp + EXTFS.ext2_temp_block]
call ext2_block_read
test eax, eax
jnz .return
push edi ecx
xor eax, eax
mov ecx, [ebp + EXTFS.block_size]
mov edi, [ebp + EXTFS.ext2_temp_block]
rep stosb
pop ecx edi
mov eax, [esp]
call ext2_block_write
.return:
pop ebx
ret
;---------------------------------------------------------------------
; Allocates a block.
; Input: eax = inode ID for "preference".
; ebp = pointer to EXTFS.
; Output: Block marked as set in block group.
; eax = error code.
; ebx = block ID.
;---------------------------------------------------------------------
ext2_block_alloc:
push [ebp + EXTFS.superblock + EXT2_SB_STRUC.blocks_count]
push EXT2_BLOCK_GROUP_DESC.free_blocks_count
push [ebp + EXTFS.superblock + EXT2_SB_STRUC.blocks_per_group]
lea ebx, [ebp + EXTFS.superblock + EXT2_SB_STRUC.free_block_count]
push ebx
push ext2_bg_read_blk_bitmap
call ext2_resource_alloc
ret
;---------------------------------------------------------------------
; Zero-allocates a block.
; Input: eax = inode ID for "preference".
; ebp = pointer to EXTFS.
; Output: Block marked as set in block group.
; eax = error code.
; ebx = block ID.
;---------------------------------------------------------------------
ext2_block_calloc:
call ext2_block_alloc
test eax, eax
jnz @F
call ext2_block_zero
@@:
ret
;---------------------------------------------------------------------
; Frees a block.
; Input: eax = block ID.
; ebp = pointer to EXTFS.
; Output: Block marked as free in block group.
; eax = error code.
;---------------------------------------------------------------------
ext2_block_free:
push edi ecx
mov edi, ext2_bg_read_blk_bitmap
xor ecx, ecx
call ext2_resource_free
pop ecx edi
ret
;---------------------------------------------------------------------
; Find parent from file path in block.
; Input: esi = file path.
; ebx = pointer to directory block.
; ebp = pointer to EXTFS structure.
; Output: esi = name without parent, or not changed.
; ebx = directory record matched.
;---------------------------------------------------------------------
ext2_block_find_parent:
sub esp, 256 ; Space for EXT2 filename.
mov edx, ebx
add edx, [ebp + EXTFS.block_size] ; Save block end.
.start_rec:
cmp [ebx + EXT2_DIR_STRUC.inode], 0
jz .next_rec
mov edi, esp
push esi
movzx ecx, [ebx + EXT2_DIR_STRUC.name_len]
lea esi, [ebx + EXT2_DIR_STRUC.name]
call utf8_to_cp866
mov ecx, edi
lea edi, [esp + 4]
sub ecx, edi ; Number of bytes in resulting string.
mov esi, [esp]
; esi: original file path.
; edi: converted string stored on stack.
; ecx: size of converted string.
@@:
; If no bytes left in resulting string, test it.
jecxz .test_find
dec ecx
lodsb
call char_toupper
mov ah, [edi]
inc edi
xchg al, ah
call char_toupper
; If both are same, check next byte.
cmp al, ah
je @B
@@: ; Doesn't match.
pop esi
.next_rec:
movzx eax, [ebx + EXT2_DIR_STRUC.rec_len]
add ebx, eax ; Go to next record.
cmp ebx, edx ; Check if this is the end.
jb .start_rec
add esp, 256
ret
.test_find:
cmp byte [esi], 0
je .ret ; The end reached.
cmp byte [esi], '/' ; If not end of directory name, not matched.
jne @B
inc esi
.ret:
add esp, 256 + 4
ret
;---------------------------------------------------------------------
; Finds free space in a directory block, modifying last entry appropriately.
; Input: ebp = pointer to EXTFS.
; ecx = size of free space required.
; [EXTFS.ext2_temp_block] contains the block relevant.
; Output: edi = free entry.
; rec_len of free entry is set.
; eax = error code; if the block doesn't link to the next one, this is 0x00000001 on failure.
; ; else, 0xFFFFFFFF.
;---------------------------------------------------------------------
ext2_block_find_fspace:
push ebx edx
mov edi, [ebp + EXTFS.ext2_temp_block]
mov edx, edi
add edx, [ebp + EXTFS.block_size]
@@:
movzx eax, [edi + EXT2_DIR_STRUC.rec_len]
test eax, eax
jz .zero_len
cmp [edi + EXT2_DIR_STRUC.inode], 0
je .unused_entry
; It's a used entry, so see if we can fit it between current one and next.
; Subtract the size used by the name and the structure from rec_len.
movzx ebx, [edi + EXT2_DIR_STRUC.name_len]
add ebx, 8 + 3
and ebx, 0xfffffffc ; Align it on the next 4-byte boundary.
sub eax, ebx
add edi, ebx
cmp eax, ecx
jb .next_iter
sub edi, ebx
mov [edi + EXT2_DIR_STRUC.rec_len], bx ; Make previous entry point to us.
add edi, ebx
mov [edi + EXT2_DIR_STRUC.rec_len], ax ; Make current entry point to next one.
jmp .found
.unused_entry:
; It's an unused inode.
cmp eax, ecx
jge .found
.next_iter:
add edi, eax
cmp edi, edx
jb @B
.not_found:
xor eax, eax
not eax
jmp .ret
; Zero length entry means we have the rest of the block for us.
.zero_len:
mov eax, edx
sub eax, edi
; Point to next block.
mov [edi + EXT2_DIR_STRUC.rec_len], ax
cmp eax, ecx
jge .fits
mov [edi + EXT2_DIR_STRUC.inode], 0
; It doesn't fit, but the block doesn't link to the next block.
xor eax, eax
inc eax
jmp .ret
.fits:
mov [edi + EXT2_DIR_STRUC.rec_len], cx
.found:
xor eax, eax
.ret:
pop edx ebx
ret
;---------------------------------------------------------------------
; Gets the block group's descriptor.
; Input: eax = block group.
; Output: eax = if zero, error; else, points to block group descriptor.
; [EXTFS.ext2_temp_block] contains relevant block.
; ebp = pointer to EXTFS.
;---------------------------------------------------------------------
ext2_bg_read_desc:
push edx ebx
mov edx, 32
mul edx ; Get index of descriptor in global_desc_table.
; eax: block group descriptor offset relative to global descriptor table start
; Find the block this block descriptor is in.
div [ebp + EXTFS.block_size]
add eax, [ebp + EXTFS.superblock + EXT2_SB_STRUC.first_data_block]
inc eax
mov ebx, [ebp + EXTFS.ext2_temp_block]
call ext2_block_read
test eax, eax
jnz .fail
add ebx, edx ; edx: local index of descriptor inside block
mov eax, ebx
.return:
pop ebx edx
ret
.fail:
xor eax, eax
jmp .return
;---------------------------------------------------------------------
; Writes a block group's descriptor.
; Input: eax = block group.
; [EXTFS.ext2_temp_data] contains the block relevant.
; ebp = pointer to EXTFS.
; Output: eax = error code.
;---------------------------------------------------------------------
ext2_bg_write_desc:
push edx ebx
mov edx, 32
mul edx ; Get index of descriptor in global_desc_table.
; eax: block group descriptor offset relative to global descriptor table start
; Find the block this block descriptor is in.
div [ebp + EXTFS.block_size]
add eax, [ebp + EXTFS.superblock + EXT2_SB_STRUC.first_data_block]
inc eax
mov ebx, [ebp + EXTFS.ext2_temp_block]
call ext2_block_write
.return:
pop ebx edx
ret
;---------------------------------------------------------------------
; Gets the block group's block bitmap.
; Input: eax = block group.
; Output: eax = if zero, error; else, points to block group descriptor.
; ebx = block bitmap's block (hard disk).
;---------------------------------------------------------------------
ext2_bg_read_blk_bitmap:
push ecx
call ext2_bg_read_desc
test eax, eax
jz .fail
mov ebx, [eax + EXT2_BLOCK_GROUP_DESC.block_bitmap] ; Block number of block group bitmap - in ext2 terms.
.return:
pop ecx
ret
.fail:
xor eax, eax
jmp .return
;---------------------------------------------------------------------
; Updates superblock, plus backups.
; Input: ebp = pointer to EXTFS.
; Output: eax = error code.
;---------------------------------------------------------------------
ext2_sb_update:
push ebx
mov eax, 2
lea ebx, [ebp + EXTFS.superblock]
call fs_write32_sys
pop ebx
ret

1723
kernel/trunk/fs/ext2/ext2.asm
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673
kernel/trunk/fs/ext2/ext2.inc
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Contains ext2 structures, and macros. ;;
;; ;;
;; Copyright (C) KolibriOS team 2013-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
; Future jobs for driver, in order of preference:
; * clean up existing extents support.
; * add b-tree directories support.
; * add long file support.
; * add journal support.
; * add minor features that come with ext3/4.
; Recommended move to some kernel-wide bitmap handling code (with a bit of abstraction, of course).
;---------------------------------------------------------------------
; Clears a bit.
; Input: eax = index into bitmap.
; [EXTFS.ext2_save_block] = address of bitmap.
; ebp = address of EXTFS.
; Output: Bit cleared.
; eax = non-zero, if already cleared.
;---------------------------------------------------------------------
bitmap_clear_bit:
push ebx ecx edx
xor edx, edx
mov ecx, 8
div ecx
add eax, [ebp + EXTFS.ext2_save_block]
; Get the mask.
mov ebx, 1
mov ecx, edx
shl ebx, cl
test [eax], ebx
jz .cleared
not ebx
and [eax], ebx
xor eax, eax
.return:
pop edx ecx ebx
ret
; Already cleared.
.cleared:
xor eax, eax
not eax
jmp .return
;---------------------------------------------------------------------
; Finds free bit in the bitmap.
; Input: ecx = number of bits in the bitmap.
; [EXTFS.ext2_save_block] = address of bitmap.
; ebp = address of EXTFS.
; Output: eax = index of free bit in the bitmap; marked set.
; 0xFFFFFFFF if no free bit found.
;---------------------------------------------------------------------
ext2_find_free_bit:
bitmap_find_free_bit:
push esi ebx ecx edx
mov esi, [ebp + EXTFS.ext2_save_block]
; Get total DWORDS in eax; total bits in last dword, if any, in edx.
xor edx, edx
mov eax, ecx
mov ecx, 32
div ecx
mov ecx, eax
xor eax, eax
push edx
test ecx, ecx
jz .last_bits
; Check in the DWORDS.
.dwords:
mov ebx, [esi]
not ebx
bsf edx, ebx
; If 0, then the original value would be 0xFFFFFFFF, hence no free bits.
jz @F
; We found the value. Let's return with it.
add esp, 4
add eax, edx
jmp .return
@@:
add esi, 4
add eax, 32
loop .dwords
.last_bits:
; Check in the last few bits.
pop ecx
test ecx, ecx
jz @F
mov ebx, [esi]
not ebx
bsf ebx, edx
; If 0, no free bits.
jz @F
; If free bit is greater than the last known bit, then error.
cmp edx, ecx
jg @F
add eax, edx
jmp .return
@@:
; Didn't find any free bits.
xor eax, eax
not eax
jmp @F
.return:
mov ecx, edx
mov edx, 1
shl edx, cl
or [esi], edx
@@:
pop edx ecx ebx esi
ret
; Recommended move to some kernel-wide string handling code.
;---------------------------------------------------------------------
; Find the length of a string.
; Input: esi = source.
; Output: length in ecx
;---------------------------------------------------------------------
strlen:
push eax esi
xor ecx, ecx
@@:
lodsb
test al, al
jz .ret
inc ecx
jmp @B
.ret:
pop esi eax
ret
;---------------------------------------------------------------------
; Convert UTF-8 string to ASCII-string (codepage 866)
; Input: esi = source.
; edi = buffer.
; ecx = length of source.
; Output: destroys eax, esi, edi
;---------------------------------------------------------------------
utf8_to_cp866:
; Check for zero-length string.
jecxz .return
.start:
lodsw
cmp al, 0x80
jb .ascii
xchg al, ah ; Big-endian.
cmp ax, 0xd080
jz .yo1
cmp ax, 0xd191
jz .yo2
cmp ax, 0xd090
jb .unk
cmp ax, 0xd180
jb .rus1
cmp ax, 0xd190
jb .rus2
.unk:
mov al, '_'
jmp .doit
.yo1:
mov al, 0xf0 ; Ё capital.
jmp .doit
.yo2:
mov al, 0xf1 ; ё small.
jmp .doit
.rus1:
sub ax, 0xd090 - 0x80
jmp .doit
.rus2:
sub ax, 0xd18f - 0xEF
.doit:
stosb
sub ecx, 2
ja .start
ret
.ascii:
stosb
dec esi
dec ecx
jnz .start
.return:
ret
; Recommended move to some kernel-wide time handling code.
; Total cumulative seconds till each month.
cumulative_seconds_in_month:
.january: dd 0 * (60 * 60 * 24)
.february: dd 31 * (60 * 60 * 24)
.march: dd 59 * (60 * 60 * 24)
.april: dd 90 * (60 * 60 * 24)
.may: dd 120 * (60 * 60 * 24)
.june: dd 151 * (60 * 60 * 24)
.july: dd 181 * (60 * 60 * 24)
.august: dd 212 * (60 * 60 * 24)
.september: dd 243 * (60 * 60 * 24)
.october: dd 273 * (60 * 60 * 24)
.november: dd 304 * (60 * 60 * 24)
.december: dd 334 * (60 * 60 * 24)
current_bdfe_time:
dd 0
current_bdfe_date:
dd 0
;---------------------------------------------------------------------
; Stores current unix time.
; Input: edi = buffer to output Unix time.
;---------------------------------------------------------------------
current_unix_time:
push eax esi
mov esi, current_bdfe_time
; Just a small observation:
; The CMOS is a pretty bad source to get time from. One shouldn't rely on it,
; since it messes up the time by tiny bits. Of course, this is all technical,
; but one can look it up on the osdev wiki. What is better is to get the time
; from CMOS during boot, then update system time using a more accurate timer.
; I'll probably add that after the Summer of Code, so TODO! TODO! TODO!.
; Get time from CMOS.
; Seconds.
mov al, 0x00
out 0x70, al
in al, 0x71
call bcd2bin
mov [esi + 0], al
; Minute.
mov al, 0x02
out 0x70, al
in al, 0x71
call bcd2bin
mov [esi + 1], al
; Hour.
mov al, 0x04
out 0x70, al
in al, 0x71
call bcd2bin
mov [esi + 2], al
; Get date.
; Day.
mov al, 0x7
out 0x70, al
in al, 0x71
call bcd2bin
mov [esi + 4], al
; Month.
mov al, 0x8
out 0x70, al
in al, 0x71
call bcd2bin
mov [esi + 5], al
; Year.
mov al, 0x9
out 0x70, al
in al, 0x71
call bcd2bin
add ax, 2000 ; CMOS only returns last two digits.
; Note that everywhere in KolibriOS this is used.
; This is hacky, since the RTC can be incorrectly set
; to something before 2000.
mov [esi + 6], ax
call bdfe_to_unix_time
pop esi eax
ret
;---------------------------------------------------------------------
; Convert time+date from BDFE to Unix time.
; Input: esi = pointer to BDFE time+date.
; edi = buffer to output Unix time.
;---------------------------------------------------------------------
bdfe_to_unix_time:
push eax ebx ecx edx
mov dword[edi], 0x00000000
; The minimum representable time is 1901-12-13.
cmp word[esi + 6], 1901
jb .ret
jg .max
cmp byte[esi + 5], 12
jb .ret
cmp byte[esi + 4], 13
jbe .ret
jg .convert
; Check if it is more than the maximum representable time.
.max:
; The maximum representable time is 2038-01-19.
cmp word[esi + 6], 2038
jg .ret
jb .convert
cmp byte[esi + 5], 1
jg .ret
cmp byte[esi + 4], 19
jge .ret
; Convert the time.
.convert:
; Get if current year is leap year in ECX.
xor ecx, ecx
mov ebx, 4
xor edx, edx
cmp word[esi + 6], 1970
jb .negative
movzx eax, word[esi + 6] ; Year.
cmp byte[esi + 5], 3 ; If the month is less than March, than that year doesn't matter.
jge @F
test eax, 3
; Not a leap year.
jnz @F
inc ecx
@@:
; Number of leap years between two years = ((end date - 1)/4) - (1970/4)
dec eax
div ebx
sub eax, 1970/4
; EAX is the number of leap years.
add eax, ecx
mov ecx, (60 * 60 * 24) ; Seconds in a day.
mul ecx
; Account for leap years, i.e., one day extra for each.
add [edi], eax
; Get total days in EAX.
movzx eax, byte[esi + 4]
dec eax
mul ecx
; Account for days.
add [edi], eax
; Account for month.
movzx eax, byte[esi + 5]
dec eax
mov eax, [cumulative_seconds_in_month + (eax * 4)]
add [edi], eax
; Account for year.
movzx eax, word[esi + 6]
sub eax, 1970
mov ecx, (60 * 60 * 24) * 365 ; Seconds in a year.
mul ecx
add [edi], eax
; Seconds.
movzx eax, byte[esi + 0]
add [edi], eax
; Minutes.
movzx eax, byte[esi + 1]
mov ecx, 60
mul ecx
add [edi], eax
; Hours.
movzx eax, byte[esi + 2]
mov ecx, (60 * 60)
mul ecx
add [edi], eax
; The time wanted is before the epoch; handle it here.
.negative:
; TODO.
.ret:
pop edx ecx ebx eax
ret
; Recommended move to some kernel-wide alloc handling code.
macro KERNEL_ALLOC store, label
{
call kernel_alloc
mov store, eax
test eax, eax
jz label
}
macro KERNEL_FREE data, label
{
cmp data, 0
jz label
push data
call kernel_free
}
struct EXTFS PARTITION
lock MUTEX
partition_flags dd ?
log_block_size dd ?
block_size dd ?
count_block_in_block dd ?
blocks_per_group dd ?
global_desc_table dd ?
root_inode dd ? ; Pointer to root inode in memory.
inode_size dd ?
count_pointer_in_block dd ? ; (block_size / 4)
count_pointer_in_block_square dd ? ; (block_size / 4)**2
ext2_save_block dd ? ; Block for 1 global procedure.
ext2_temp_block dd ? ; Block for small procedures.
ext2_save_inode dd ? ; inode for global procedures.
ext2_temp_inode dd ? ; inode for small procedures.
groups_count dd ?
superblock rd 1024/4
ends
; EXT2 revisions.
EXT2_GOOD_OLD_REV = 0
; For fs_type.
FS_TYPE_UNDEFINED = 0
FS_TYPE_EXT = 2
; Some set inodes.
EXT2_BAD_INO = 1
EXT2_ROOT_INO = 2
EXT2_ACL_IDX_INO = 3
EXT2_ACL_DATA_INO = 4
EXT2_BOOT_LOADER_INO = 5
EXT2_UNDEL_DIR_INO = 6
; EXT2_SUPER_MAGIC.
EXT2_SUPER_MAGIC = 0xEF53
EXT2_VALID_FS = 1
; Flags defining i_mode values.
EXT2_S_IFMT = 0xF000 ; Mask for file type.
EXT2_S_IFREG = 0x8000 ; Regular file.
EXT2_S_IFDIR = 0x4000 ; Directory.
EXT2_S_IRUSR = 0x0100 ; User read
EXT2_S_IWUSR = 0x0080 ; User write
EXT2_S_IXUSR = 0x0040 ; User execute
EXT2_S_IRGRP = 0x0020 ; Group read
EXT2_S_IWGRP = 0x0010 ; Group write
EXT2_S_IXGRP = 0x0008 ; Group execute
EXT2_S_IROTH = 0x0004 ; Others read
EXT2_S_IWOTH = 0x0002 ; Others write
EXT2_S_IXOTH = 0x0001 ; Others execute
PERMISSIONS = EXT2_S_IRUSR or EXT2_S_IWUSR \
or EXT2_S_IRGRP or EXT2_S_IWGRP \
or EXT2_S_IROTH or EXT2_S_IWOTH
; File type defining values in directory entry.
EXT2_FT_REG_FILE = 1 ; Regular file.
EXT2_FT_DIR = 2 ; Directory.
; Flags used by KolibriOS.
FS_FT_HIDDEN = 2
FS_FT_DIR = 0x10 ; Directory.
; ext2 partition flags.
EXT2_RO = 0x01
FS_FT_ASCII = 0 ; Name in ASCII.
FS_FT_UNICODE = 1 ; Name in Unicode.
EXT2_FEATURE_INCOMPAT_FILETYPE = 0x0002 ; Have file type in directory entry.
EXT4_FEATURE_INCOMPAT_EXTENTS = 0x0040 ; Extents.
EXT4_FEATURE_INCOMPAT_FLEX_BG = 0x0200 ; Flexible block groups.
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER = 0x0001 ; Sparse Superblock
EXT2_FEATURE_RO_COMPAT_LARGE_FILE = 0x0002 ; Large file support (64-bit file size)
; Implemented ext[2,3,4] features.
EXT4_FEATURE_INCOMPAT_SUPP = EXT2_FEATURE_INCOMPAT_FILETYPE \
or EXT4_FEATURE_INCOMPAT_EXTENTS \
or EXT4_FEATURE_INCOMPAT_FLEX_BG
; Implemented features which otherwise require "read-only" mount.
EXT2_FEATURE_RO_COMPAT_SUPP = EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER \
or EXT2_FEATURE_RO_COMPAT_LARGE_FILE
; ext4 features not support for write.
EXT4_FEATURE_INCOMPAT_W_NOT_SUPP = EXT4_FEATURE_INCOMPAT_EXTENTS \
or EXT4_FEATURE_INCOMPAT_FLEX_BG
; Flags specified in i_flags.
EXT2_EXTENTS_FL = 0x00080000 ; Extents.
struct EXT2_INODE_STRUC
i_mode dw ?
i_uid dw ?
i_size dd ?
i_atime dd ?
i_ctime dd ?
i_mtime dd ?
i_dtime dd ?
i_gid dw ?
i_links_count dw ?
i_blocks dd ?
i_flags dd ?
i_osd1 dd ?
i_block rd 15
i_generation dd ?
i_file_acl dd ?
i_dir_acl dd ?
i_faddr dd ?
i_osd2 dd ? ; 12 bytes.
ends
struct EXT2_DIR_STRUC
inode dd ?
rec_len dw ?
name_len db ?
file_type db ?
name db ? ; 255 (max) bytes.
ends
struct EXT2_BLOCK_GROUP_DESC
block_bitmap dd ? ; +0
inode_bitmap dd ? ; +4
inode_table dd ? ; +8
free_blocks_count dw ? ; +12
free_inodes_count dw ? ; +14
used_dirs_count dw ? ; +16
pad dw ? ; +18
reserved rb 12 ; +20
ends
struct EXT2_SB_STRUC
inodes_count dd ? ; +0
blocks_count dd ? ; +4
r_block_count dd ? ; +8
free_block_count dd ? ; +12
free_inodes_count dd ? ; +16
first_data_block dd ? ; +20
log_block_size dd ? ; +24
log_frag_size dd ? ; +28
blocks_per_group dd ? ; +32
frags_per_group dd ? ; +36
inodes_per_group dd ? ; +40
mtime dd ? ; +44
wtime dd ? ; +48
mnt_count dw ? ; +52
max_mnt_count dw ? ; +54
magic dw ? ; +56
state dw ? ; +58
errors dw ? ; +60
minor_rev_level dw ? ; +62
lastcheck dd ? ; +64
check_intervals dd ? ; +68
creator_os dd ? ; +72
rev_level dd ? ; +76
def_resuid dw ? ; +80
def_resgid dw ? ; +82
first_ino dd ? ; +84
inode_size dw ? ; +88
block_group_nr dw ? ; +90
feature_compat dd ? ; +92
feature_incompat dd ? ; +96
feature_ro_compat dd ? ; +100
uuid rb 16 ; +104
volume_name rb 16 ; +120
last_mounted rb 64 ; +136
algo_bitmap dd ? ; +200
prealloc_blocks db ? ; +204
preallock_dir_blocks db ? ; +205
reserved_gdt_blocks dw ? ; +206
journal_uuid rb 16 ; +208
journal_inum dd ? ; +224
journal_dev dd ? ; +228
last_orphan dd ? ; +232
hash_seed rd 4 ; +236
def_hash_version db ? ; +252
reserved rb 3 ; +253 (reserved)
default_mount_options dd ? ; +256
first_meta_bg dd ? ; +260
mkfs_time dd ? ; +264
jnl_blocks rd 17 ; +268
blocks_count_hi dd ? ; +336
r_blocks_count_hi dd ? ; +340
free_blocks_count_hi dd ? ; +344
min_extra_isize dw ? ; +348
want_extra_isize dw ? ; +350
flags dd ? ; +352
raid_stride dw ? ; +356
mmp_interval dw ? ; +358
mmp_block dq ? ; +360
raid_stripe_width dd ? ; +368
log_groups_per_flex db ? ; +372
ends
; Header block extents.
struct EXT4_EXTENT_HEADER
eh_magic dw ? ; Magic value of 0xF30A, for ext4.
eh_entries dw ? ; Number of blocks covered by the extent.
eh_max dw ? ; Capacity of entries.
eh_depth dw ? ; Tree depth (if 0, extents in the array are not extent indexes)
eh_generation dd ? ; ???
ends
; Extent.
struct EXT4_EXTENT
ee_block dd ? ; First logical block extent covers.
ee_len dw ? ; Number of blocks covered by extent.
ee_start_hi dw ? ; Upper 16 bits of 48-bit address (unused in KOS)
ee_start_lo dd ? ; Lower 32 bits of 48-bit address.
ends
; Index on-disk structure; pointer to block of extents/indexes.
struct EXT4_EXTENT_IDX
ei_block dd ? ; Covers logical blocks from here.
ei_leaf_lo dd ? ; Lower 32-bits of pointer to the physical block of the next level.
ei_leaf_hi dw ? ; Higher 16-bits (unused in KOS).
ei_unused dw ? ; Reserved.
ends

1853
kernel/trunk/fs/ext2/inode.inc
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File diff suppressed because it is too large Load Diff

226
kernel/trunk/fs/ext2/resource.inc
View File

@ -1,226 +0,0 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Contains common resource allocation + freeing code. ;;
;; ;;
;; Copyright (C) KolibriOS team 2013-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
;---------------------------------------------------------------------
; Frees a resource (block/inode).
; Input: eax = resource ID.
; edi = function pointer of ext2_bg_*_bitmap form, to
; get bitmap of resource.
; ecx = 0, block; 1, inode.
; ebp = pointer to EXTFS.
; Output: Block marked as free in block group.
; eax = error code.
;---------------------------------------------------------------------
ext2_resource_free:
push ebx edx esi
; Get block group.
sub eax, [ebp + EXTFS.superblock + EXT2_SB_STRUC.first_data_block]
xor edx, edx
div [ebp + EXTFS.superblock + EXT2_SB_STRUC.blocks_per_group]
push eax edx
call edi
test eax, eax
jz .fail
mov esi, eax
; Read the bitmap.
mov eax, ebx
mov edx, eax
mov ebx, [ebp + EXTFS.ext2_save_block]
call ext2_block_read
test eax, eax
jnz .fail
pop eax
; Mark bit free.
call bitmap_clear_bit
test eax, eax
jz @F
; No need to save anything.
xor eax, eax
add esp, 4
jmp .return
@@:
mov eax, edx
mov ebx, [ebp + EXTFS.ext2_save_block]
call ext2_block_write
test eax, eax
jnz .fail
; Read the descriptor.
mov eax, [esp]
call ext2_bg_read_desc
test eax, eax
jz .fail_bg_desc_read
lea eax, [eax + EXT2_BLOCK_GROUP_DESC.free_blocks_count]
shl ecx, 1
add eax, ecx
inc word[eax]
lea eax, [ebp + EXTFS.superblock + EXT2_SB_STRUC.free_block_count]
shl ecx, 1
add eax, ecx
inc dword[eax]
pop eax
call ext2_bg_write_desc
.return:
pop esi edx ebx
ret
.fail:
add esp, 4
.fail_bg_desc_read:
add esp, 4
xor eax, eax
not eax
jmp .return
;---------------------------------------------------------------------
; Allocates a resource.
; Input: eax = inode ID for "preference".
; ebp = pointer to EXTFS.
; [esp + 4], func pointer to ext2_bg_*_bitmap
; [esp + 8], pointer to free_*_count in SB.
; [esp + 12], *_per_group
; [esp + 16], offset to free_*_count in bg descriptor.
; [esp + 20], *_count
; Output: Resource marked as set in block group.
; eax = error code.
; ebx = resource ID.
;---------------------------------------------------------------------
ext2_resource_alloc:
; Block allocation is a pretty serious area, since bad allocation
; can lead to fragmentation. Thus, the best way to allocate that
; comes to mind is to allocate around an inode as much as possible.
; On the other hand, this isn't about a single inode/file/directory,
; and focusing just around the preferred inode would lead to
; congestion. Thus, after much thought, the chosen allocation algorithm
; is to search forward, then backward.
push ecx edx esi edi
cmp dword[esp + 16 + 8], 0
jnz @F
; No free blocks.
xor eax, eax
not eax
pop edi esi edx ecx
ret 20
@@:
; Calculate which block group the preferred inode belongs to.
dec eax
xor edx, edx
; EAX = block group.
div [ebp + EXTFS.superblock + EXT2_SB_STRUC.inodes_per_group]
push eax
push eax
mov edi, .forward
.test_block_group:
call dword[esp + 16 + 8 + 4]
test eax, eax
jz .fail
mov esi, eax
mov eax, ebx
mov edx, eax
mov ebx, [ebp + EXTFS.ext2_save_block]
call ext2_block_read
test eax, eax
jnz .fail
mov ecx, [esp + 16 + 8 + 12]
call ext2_find_free_bit
cmp eax, 0xFFFFFFFF
jne @F
mov eax, edi
jmp eax
@@:
mov ecx, eax
mov eax, edx
mov ebx, [ebp + EXTFS.ext2_save_block]
call ext2_block_write
test eax, eax
jnz .fail
; ecx: the index of the matched entry.
; [esp]: block group where we found.
; [esp + 4]: starting block group.
; esi: block group descriptor.
mov eax, [esp] ; Index of block group in which we found.
mul dword[esp + 16 + 8 + 12]
add eax, ecx
mov ebx, eax
mov eax, [esp + 16 + 8 + 8]
dec dword[eax]
mov eax, esi
add eax, [esp + 16 + 8 + 16]
dec word[eax]
pop eax
call ext2_bg_write_desc
add esp, 4
jmp .return
; Continue forward.
.forward:
inc dword[esp]
mov eax, [esp]
mul dword[esp + 16 + 8 + 12]
cmp eax, [esp + 16 + 8 + 20]
jbe @F
; We need to go backward.
mov eax, [esp + 4]
mov [esp], eax
mov edi, .backward
jmp .backward
@@:
mov eax, [esp]
jmp .test_block_group
; Continue backward.
.backward:
cmp dword[esp], 0
je .fail
dec dword[esp]
mov eax, [esp]
jmp .test_block_group
.return:
pop edi esi edx ecx
ret 20
.fail:
add esp, 8
xor eax, eax
not eax
jmp .return

142
kernel/trunk/fs/fs_common.inc Normal file
View File

@ -0,0 +1,142 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
fsReadCMOS:
out 70h, al
in al, 71h
xor ah, ah
shl ax, 4
shr al, 4
aad
ret
fsGetTime:
mov al, 7
call fsReadCMOS
ror eax, 8
mov al, 8
call fsReadCMOS
ror eax, 8
mov al, 9
call fsReadCMOS
add eax, 2000
ror eax, 16
push eax
xor eax, eax
call fsReadCMOS
ror eax, 8
mov al, 2
call fsReadCMOS
ror eax, 8
mov al, 4
call fsReadCMOS
ror eax, 16
push eax
mov esi, esp
add esp, 8
fsCalculateTime:
; in: esi -> data block
; out: eax = seconds since 01.01.2001
movzx eax, word [esi+6]
sub eax, 2001
jnc @f
xor eax, eax
@@:
mov edx, months
mov ebx, eax
inc eax
test eax, 3
jnz @f
add edx, 12
@@:
movzx eax, byte [esi+5]
dec eax
xor ecx, ecx
@@:
dec eax
js @f
add cl, [edx+eax]
adc ch, 0
jmp @b
@@:
mov eax, ebx ; years
mov edx, 365
mul edx
shr ebx, 2
add eax, ebx
add eax, ecx
mov bl, [esi+4]
dec eax
add eax, ebx ; days
mov dl, 24
mul edx
mov bl, [esi+2]
add eax, ebx ; hours
mov ecx, 60
mul ecx
mov bl, [esi+1]
add eax, ebx ; minutes
mul ecx
mov bl, [esi]
add eax, ebx
ret
iglobal
months db 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
months2 db 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
endg
fsTime2bdfe:
; in: eax = seconds since 01.01.2001
; edi -> data block
; out: edi = edi+8
xor edx, edx
mov ecx, 60
div ecx
mov [edi], dl
xor edx, edx
div ecx
mov [edi+1], dl
xor edx, edx
mov cl, 24
div ecx
mov [edi+2], dx
xor edx, edx
mov cx, 365
div ecx
mov ebx, eax
add ebx, 2001
shr eax, 2
sub edx, eax
jns @f
dec ebx
add edx, 365
test ebx, 3
jnz @f
inc edx
@@:
xor eax, eax
mov ecx, months-1
test ebx, 3
jnz @f
add ecx, 12
@@:
inc ecx
inc eax
sub dl, [ecx]
jnc @b
dec dh
jns @b
add dl, [ecx]
inc edx
mov [edi+4], dl
mov [edi+5], al
mov [edi+6], bx
add edi, 8
ret

12
kernel/trunk/fs/fs_lfn.inc
View File

@ -1,7 +1,7 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@ -965,3 +965,11 @@ get_full_file_name:
jz .ret.ok
mov byte [edi-1], '/'
jmp .set_copy_cont
include "parse_fn.inc"
include "fs_common.inc"
include "iso9660.inc" ; read for CD filesystem
include "fat.inc"
include "ntfs.inc"
include "ext.inc"
include "xfs.asm"

239
kernel/trunk/fs/ntfs.inc
View File

@ -1,13 +1,36 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; Distributed under terms of the GNU General Public License. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
; NTFS driver
; NTFS external functions
; in:
; ebx -> parameter structure of sysfunc 70
; ebp -> NTFS structure
; [esi]+[[esp+4]] = name
; out:
; eax, ebx = return values for sysfunc 70
iglobal
align 4
ntfs_user_functions:
dd ntfs_free
dd (ntfs_user_functions_end - ntfs_user_functions - 4) / 4
dd ntfs_ReadFile
dd ntfs_ReadFolder
dd ntfs_CreateFile
dd ntfs_WriteFile
dd ntfs_SetFileEnd
dd ntfs_GetFileInfo
dd ntfs_SetFileInfo
dd 0
dd ntfs_Delete
dd ntfs_CreateFolder
ntfs_user_functions_end:
endg
; Basic concepts:
; File is a FileRecord in the $MFT.
@ -95,7 +118,7 @@ namespace = 51h
fileName = 52h
struct NTFS PARTITION
Lock MUTEX ? ; Currently operations with one partition
Lock MUTEX ; Currently operations with one partition
; can not be executed in parallel since the legacy code is not ready.
sectors_per_cluster dd ?
mft_cluster dd ? ; location
@ -151,31 +174,6 @@ attrlist_mft_buf rb 1024
bitmap_buf rb 1024
ends
; NTFS external functions
; in:
; ebx -> parameter structure of sysfunc 70
; ebp -> NTFS structure
; [esi]+[esp+4] = name
; out:
; eax, ebx = return values for sysfunc 70
iglobal
align 4
ntfs_user_functions:
dd ntfs_free
dd (ntfs_user_functions_end - ntfs_user_functions - 4) / 4
dd ntfs_ReadFile
dd ntfs_ReadFolder
dd ntfs_CreateFile
dd ntfs_WriteFile
dd ntfs_SetFileEnd
dd ntfs_GetFileInfo
dd ntfs_SetFileInfo
dd 0
dd ntfs_Delete
dd ntfs_CreateFolder
ntfs_user_functions_end:
endg
ntfs_test_bootsec:
; in: ebx -> buffer, edx = size of partition
; out: CF=1 -> invalid
@ -258,7 +256,14 @@ ntfs_test_bootsec:
stc
ret
; Mount if it's a valid NTFS partition.
ntfs_create_partition:
; in:
; ebp -> PARTITION structure
; ebx -> boot sector
; ebx+512 -> buffer
; out:
; eax -> NTFS structure, 0 = not NTFS
cmp dword [esi+DISK.MediaInfo.SectorSize], 512
jnz .nope
mov edx, dword [ebp+PARTITION.Length]
@ -1684,7 +1689,7 @@ ntfs_ReadFolder:
mov eax, 0x10
stosd
scasd
push edx
push ebx ecx edx
mov eax, dword [ebp+NTFS.bitmap_buf]
mov edx, dword [ebp+NTFS.bitmap_buf+4]
call ntfs_datetime_to_bdfe
@ -1694,7 +1699,7 @@ ntfs_ReadFolder:
mov eax, dword [ebp+NTFS.bitmap_buf+8]
mov edx, dword [ebp+NTFS.bitmap_buf+0xC]
call ntfs_datetime_to_bdfe
pop edx
pop edx ecx ebx
xor eax, eax
stosd
stosd
@ -1778,7 +1783,7 @@ ntfs_direntry_to_bdfe:
@@:
stosd
scasd
push edx
push ebx ecx edx
mov eax, [esi+fileCreated]
mov edx, [esi+fileCreated+4]
call ntfs_datetime_to_bdfe
@ -1788,91 +1793,26 @@ ntfs_direntry_to_bdfe:
mov eax, [esi+fileModified]
mov edx, [esi+fileModified+4]
call ntfs_datetime_to_bdfe
pop edx
pop edx ecx ebx
mov eax, [esi+fileRealSize]
stosd
mov eax, [esi+fileRealSize+4]
stosd
ret
iglobal
months db 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
months2 db 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
endg
ntfs_datetime_to_bdfe:
; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC
push ebx ecx
mov ebx, eax
mov eax, edx
xor edx, edx
; in: edx:eax = seconds since 01.01.1601 x10000000
; edi -> data block
; out: edi = edi+8
sub eax, 3365781504
sbb edx, 29389701
mov ecx, 10000000
div ecx
xchg eax, ebx
div ecx
.forEXT:
xchg eax, ebx
cmp edx, ecx
jc @f
xor edx, edx
mov ecx, 60
div ecx
xchg eax, ebx
div ecx
mov [edi], dl
mov edx, ebx
; edx:eax = number of minutes
div ecx
mov [edi+1], dl
; eax = number of hours
xor edx, edx
mov cl, 24
div ecx
mov [edi+2], dx
; eax = number of days since January 1, 1601
xor edx, edx
mov cx, 365
div ecx
mov ebx, eax
add ebx, 1601
shr eax, 2
sub edx, eax
mov cl, 25
div cl
xor ah, ah
add edx, eax
shr eax, 2
sub edx, eax
jns @f
dec ebx
add edx, 365
test bl, 3
jnz @f
inc edx
@@:
xor eax, eax
mov ecx, months-1
test bl, 3
jnz @f
add ecx, 12
@@:
inc ecx
inc eax
sub dl, [ecx]
jnc @b
dec dh
jns @b
add dl, [ecx]
inc edx
mov [edi+4], dl
mov [edi+5], al
mov [edi+6], bx
add edi, 8
pop ecx ebx
ret
.sec:
push ebx ecx
mov ebx, edx
jmp .forEXT
div ecx
jmp fsTime2bdfe
;----------------------------------------------------------------
ntfs_GetFileInfo:
@ -4179,90 +4119,19 @@ ntfs_SetFileEnd:
call ntfsSpaceClean
jmp ntfsDone
ntfsReadCMOS:
out 70h, al
in al, 71h
xor ah, ah
shl ax, 4
shr al, 4
aad
ret
ntfsGetTime:
mov al, 7
call ntfsReadCMOS
ror eax, 8
mov al, 8
call ntfsReadCMOS
ror eax, 8
mov al, 9
call ntfsReadCMOS
add eax, 2000
ror eax, 16
push eax
xor eax, eax
call ntfsReadCMOS
ror eax, 8
mov al, 2
call ntfsReadCMOS
ror eax, 8
mov al, 4
call ntfsReadCMOS
ror eax, 16
push eax
mov esi, esp
add esp, 8
call fsGetTime
jmp @f
ntfsCalculateTime:
; in: esi -> data block
; out: edx:eax = time
movzx eax, word [esi+6]
sub eax, 2001
jnc @f
xor eax, eax
; out: edx:eax = seconds since 01.01.1601 x10000000
call fsCalculateTime
@@:
mov edx, months
mov ebx, eax
inc eax
test eax, 3
jnz @f
add edx, 12
@@:
movzx eax, byte [esi+5]
dec eax
xor ecx, ecx
@@:
dec eax
js @f
add cl, [edx+eax]
adc ch, 0
jmp @b
@@:
mov eax, ebx
mov edx, 365
mov edx, 10000000
mul edx
shr ebx, 2
add eax, ebx
add eax, ecx
mov bl, [esi+4]
add eax, ebx
add eax, 400*365+100-4
mov dl, 24
mul edx
mov bl, [esi+2]
add eax, ebx
mov ecx, 60
mul ecx
mov bl, [esi+1]
add eax, ebx
mul ecx
mov bl, [esi]
add ebx, eax
mov eax, edx
mov ecx, 10000000
mul ecx
xchg eax, ebx
mul ecx
add edx, ebx
add eax, 3365781504
adc edx, 29389701
ret
;----------------------------------------------------------------

73
kernel/trunk/fs/parse_fn.inc
View File

@ -1,7 +1,7 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@ -391,3 +391,72 @@ ansi2uni_char:
.unk:
mov al, '_'
ret
utf8_to_cp866:
; in: esi, edi, ecx
; destroys esi, edi, ecx, eax
call utf8to16
js utf8to16.ret
call uni2ansi_char
stosb
jmp utf8_to_cp866
utf8to16:
; in:
; esi -> string
; ecx = byte counter
; out:
; SF=1 -> end
; ax = UTF-16 char
; changes esi, ecx
dec ecx
js .ret
lodsb
test al, al
jns .got
shl al, 2
jnc utf8to16
@@:
shl ax, 8
dec ecx
js .ret
lodsb
test al, al
jns .got
shl al, 2
jc @b
shr ah, 2
shl ax, 3
jnc @f
shl eax, 3
dec ecx
js .ret
lodsb
test al, al
jns .got
shl al, 2
jc @b
shr eax, 2
ret
@@:
shr ax, 5
ret
.got:
xor ah, ah
.ret:
ret
strlen:
; in: esi -> source
; out: ecx = length
push edi eax
or ecx, -1
mov edi, esi
xor eax, eax
repnz scasb
inc ecx
not ecx
pop eax edi
ret

130
kernel/trunk/fs/xfs.asm
View File

@ -1,29 +1,46 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2013-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; Copyright (C) KolibriOS team 2013-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
; XFS external functions
; in:
; ebx -> parameter structure of sysfunc 70
; ebp -> XFS structure
; [esi]+[[esp+4]] = name
; out:
; eax, ebx = return values for sysfunc 70
iglobal
align 4
xfs_user_functions:
dd xfs_free
dd (xfs_user_functions_end - xfs_user_functions - 4) / 4
dd xfs_ReadFile
dd xfs_ReadFolder
dd 0;xfs_CreateFile
dd 0;xfs_WriteFile
dd 0;xfs_SetFileEnd
dd xfs_GetFileInfo
dd 0;xfs_SetFileInfo
dd 0
dd 0;xfs_Delete
dd 0;xfs_CreateFolder
xfs_user_functions_end:
endg
include 'xfs.inc'
;
; This file contains XFS related code.
; For more information on XFS check sources below.
;
; 1. XFS Filesystem Structure, 2nd Edition, Revision 1. Silicon Graphics Inc. 2006
; 2. Linux source http://kernel.org
;
; test partition type (valid XFS one?)
; alloc and fill XFS (see xfs.inc) structure
; this function is called for each partition
; returns 0 (not XFS or invalid) / pointer to partition structure
; Mount if it's a valid XFS partition.
xfs_create_partition:
; in:
; ebp -> PARTITION structure
; ebx -> boot sector
; out:
; eax -> XFS structure, 0 = not XFS
push ebx ecx edx esi edi
cmp dword [esi+DISK.MediaInfo.SectorSize], 512
jnz .error
@ -94,7 +111,7 @@ xfs_create_partition:
mov dword[edi + XFS.rootino + 0], eax ; endian
mov eax, dword[ebx + xfs_sb.sb_rootino + 0] ; 64bit
bswap eax ; number
mov dword[edi + XFS.rootino + 4], eax ;
mov dword[edi + XFS.rootino + 4], eax ;
mov eax, [edi + XFS.blocksize]
mov ecx, [edi + XFS.dirblklog]
@ -211,25 +228,6 @@ xfs_create_partition:
ret
iglobal
align 4
xfs_user_functions:
dd xfs_free
dd (xfs_user_functions_end - xfs_user_functions - 4) / 4
dd xfs_Read
dd xfs_ReadFolder
dd 0;xfs_Rewrite
dd 0;xfs_Write
dd 0;xfs_SetFileEnd
dd xfs_GetFileInfo
dd 0;xfs_SetFileInfo
dd 0
dd 0;xfs_Delete
dd 0;xfs_CreateFolder
xfs_user_functions_end:
endg
; lock partition access mutex
proc xfs_lock
;DEBUGF 1,"xfs_lock\n"
@ -510,10 +508,10 @@ DEBUGF 1,"xfs_dir_get_bdfes: %d entries from %d\n",[esp+8],[esp+4]
add eax, eax ; 4+4=8, iff i8count != 0
@@:
mov dword[edx + 12], 0 ; reserved
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
add edx, 32
lea esi, [ebx + xfs_inode.di_u + xfs_dir2_sf_hdr.parent + eax]
dec ecx
@ -642,10 +640,10 @@ DEBUGF 1,"xfs_dir_get_bdfes: %d entries from %d\n",[esp+8],[esp+4]
mov [ebp + XFS.entries_read], eax
;DEBUGF 1,"actually read entries: %d\n",eax
mov dword[edx + 12], 0 ; reserved
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
add ebx, xfs_dir2_block.u
mov ecx, [esp + 24] ; start entry number
@ -742,10 +740,10 @@ DEBUGF 1,"xfs_dir_get_bdfes: %d entries from %d\n",[esp+8],[esp+4]
mov [edx + 4], eax ; number of actually read entries
mov dword[edx + 12], 0 ; reserved
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
mov eax, [ebp + XFS.cur_dirblock]
add eax, [ebp + XFS.dirblocksize]
@ -886,10 +884,10 @@ DEBUGF 1,"xfs_dir_get_bdfes: %d entries from %d\n",[esp+8],[esp+4]
mov [edx + 4], eax ; number of actually read entries
mov dword[edx + 12], 0 ; reserved
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
mov dword[edx + 16], 0 ;
mov dword[edx + 20], 0 ;
mov dword[edx + 24], 0 ;
mov dword[edx + 28], 0 ;
mov eax, [ebp + XFS.cur_dirblock]
add eax, [ebp + XFS.dirblocksize]
@ -1739,28 +1737,22 @@ xfs_get_inode_info:
mov eax, [edx + xfs_inode.di_core.di_ctime.t_sec]
bswap eax
push edx
xor edx, edx
add eax, 3054539008 ;(369 * 365 + 89) * 24 * 3600
adc edx, 2
call ntfs_datetime_to_bdfe.sec
sub eax, 978307200 ; 01.01.1970-01.01.2001 = (365*31+8)*24*60*60
call fsTime2bdfe
pop edx
mov eax, [edx + xfs_inode.di_core.di_atime.t_sec]
bswap eax
push edx
xor edx, edx
add eax, 3054539008 ;(369 * 365 + 89) * 24 * 3600
adc edx, 2
call ntfs_datetime_to_bdfe.sec
sub eax, 978307200
call fsTime2bdfe
pop edx
mov eax, [edx + xfs_inode.di_core.di_mtime.t_sec]
bswap eax
push edx
xor edx, edx
add eax, 3054539008 ;(369 * 365 + 89) * 24 * 3600
adc edx, 2
call ntfs_datetime_to_bdfe.sec
sub eax, 978307200
call fsTime2bdfe
pop edx
.quit:
@ -1947,18 +1939,16 @@ xfs_GetFileInfo:
;----------------------------------------------------------------
; xfs_Read - XFS implementation of reading a file
; xfs_ReadFile - XFS implementation of reading a file
; in: ebp = pointer to XFS structure
; in: esi+[esp+4] = name
; in: ebx = pointer to parameters from sysfunc 70
; out: eax, ebx = return values for sysfunc 70
;----------------------------------------------------------------
xfs_Read:
xfs_ReadFile:
push ebx ecx edx esi edi
call xfs_lock
add esi, [esp + 24]
;DEBUGF 1,"xfs_Read: %d %d |%s|\n",[ebx+4],[ebx+12],esi
stdcall xfs_get_inode, esi
mov ecx, edx
or ecx, eax
@ -2353,7 +2343,7 @@ xfs_dir2_node_get_numfiles:
test eax, eax
jnz .error
jmp .common
.leaf:
;DEBUGF 1,".leaf\n"
movzx ecx, word[ebx + xfs_dir2_leaf.hdr.count]
@ -2514,7 +2504,7 @@ xfs_dir2_btree_get_numfiles:
test eax, eax
jnz .error
jmp .common
.leaf:
;DEBUGF 1,".leaf\n"
movzx ecx, word[ebx + xfs_dir2_leaf.hdr.count]
@ -2750,7 +2740,7 @@ DEBUGF 1,".root.not_root\n"
jmp .quit
.leaf:
jmp .quit
.error:

40
kernel/trunk/gui/font.inc
View File

@ -141,40 +141,18 @@ deltaToScreen = 28
.drawUTF8:
dec dword [esp]
js .done
@@:
movzx ebx, byte [esi]
inc esi
test bl, bl
mov ecx, 256
xor eax, eax
call utf8to16
test ax, ax
jz .done
jns .valid
shl bx, 10
jnc @b
mov bl, [esi]
test bl, bl
jns @b
shl bl, 2
jc @b
shr bh, 2
shr bx, 2
inc esi
cmp bx, 1419
jc .valid
shl bh, 4
jns @f
.tail:
mov bl, [esi]
shl bl, 1
jnc @b
js @b
inc esi
shl bh, 1
js .tail
cmp eax, 1419
jc @f
xor eax, eax
@@:
xor ebx, ebx
.valid:
shl eax, 4
lea ebx, [eax+fontUni]
pushd esi edi 16
shl ebx, 4
add ebx, fontUni
mov esi, [esp+12+fontMultiplier]
call drawChar
imul esi, 8*4

146
kernel/trunk/kernel32.inc
View File

@ -1,132 +1,70 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; KERNEL32.INC ;;
;; ;;
;; Included 32 bit kernel files for MenuetOS ;;
;; ;;
;; This file is kept separate as it will be easier to ;;
;; maintain and compile with an automated SETUP program ;;
;; in the future. ;;
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
; Core functions
include "core/sync.inc" ; macros for synhronization objects
include "core/sys32.inc" ; process management
include "core/sched.inc" ; process scheduling
include "core/syscall.inc" ; system call
include "core/fpu.inc" ; all fpu/sse support
include "core/sync.inc" ; macros for synhronization objects
include "core/sys32.inc" ; process management
include "core/sched.inc" ; process scheduling
include "core/syscall.inc"
include "core/fpu.inc" ; all fpu/sse support
include "core/memory.inc"
include "core/mtrr.inc"
include "core/heap.inc" ; kernel and app heap
include "core/malloc.inc" ; small kernel heap
include "core/heap.inc"
include "core/malloc.inc" ; small kernel heap
include "core/taskman.inc"
include "core/dll.inc"
include "core/peload.inc" ;
include "core/peload.inc"
include "core/exports.inc"
include "core/string.inc"
include "core/v86.inc" ; virtual-8086 manager
include "core/irq.inc" ; irq handling functions
include "core/apic.inc" ; Interrupt Controller functions
include "core/v86.inc" ; 16-bit mode machine
include "core/irq.inc" ; interrupt handling functions
include "core/apic.inc"
include "core/timers.inc"
include "core/clipboard.inc" ; custom clipboard
include "core/clipboard.inc"
include "core/conf_lib.inc"
include "core/ext_lib.inc" ; load external library
include "boot/shutdown.inc" ; kernel shutdown
include "video/vesa20.inc"
include "video/blitter.inc"
include "video/vga.inc" ; VGA 16 color functions
include "video/cursors.inc"
include "video/framebuffer.inc"
; GUI stuff
include "gui/window.inc"
include "gui/event.inc"
include "gui/font.inc"
include "gui/button.inc"
include "boot/shutdown.inc" ; kernel shutdown
; file system
include "blkdev/disk.inc" ; support for plug-n-play disks
include "blkdev/disk_cache.inc" ; caching for plug-n-play disks
include "blkdev/rd.inc" ; ramdisk read /write
include "fs/fat.inc" ; read / write for fat filesystem
include "fs/ntfs.inc" ; read / write for ntfs filesystem
include "fs/fs_lfn.inc" ; syscall, version 2
include "fs/iso9660.inc" ; read for iso9660 filesystem CD
include "fs/ext2/ext2.asm" ; read / write for ext2 filesystem
include "fs/xfs.asm" ; read / write for xfs filesystem
; sound
include "sound/playnote.inc" ; player Note for Speaker PC
; display
;include "video/vesa12.inc" ; Vesa 1.2 functions
include "video/vesa20.inc" ; Vesa 2.0 functions
include "video/blitter.inc"
include "video/vga.inc" ; VGA 16 color functions
include "video/cursors.inc" ; cursors functions
include "video/framebuffer.inc" ; framebuffer functions
; Network Interface & TCPIP Stack
include "network/stack.inc"
;include "drivers/uart.inc"
; Mouse pointer
include "gui/mouse.inc"
; Window skinning
include "gui/skincode.inc"
; Pci functions
include "bus/pci/pci32.inc"
; USB functions
include "bus/usb/init.inc"
; Floppy drive controller
include "blkdev/fdc.inc"
include "blkdev/flp_drv.inc"
; IDE cache
include "blkdev/ide_cache.inc"
; HD drive controller
include "blkdev/hd_drv.inc"
; Access through BIOS
include "blkdev/bd_drv.inc"
; CD drive controller
include "blkdev/cd_drv.inc"
; Character devices
include "gui/mouse.inc" ; cursor
include "gui/skincode.inc" ; windows' skin
include "hid/keyboard.inc"
include "hid/mousedrv.inc"
include "hid/set_dtc.inc" ; setting date,time,clock and alarm-clock
; setting date,time,clock and alarm-clock
include "sound/playnote.inc" ; player Note for PC Speaker
include "hid/set_dtc.inc"
include "bus/pci/pci32.inc"
include "bus/usb/init.inc"
;% -include
include "blkdev/flp_drv.inc" ; floppy driver
include "blkdev/fdc.inc"
include "blkdev/cd_drv.inc" ; CD driver
include "blkdev/ide_cache.inc" ; CD cache
include "blkdev/hd_drv.inc" ; HDD driver
include "blkdev/bd_drv.inc" ; BIOS disks driver
include "blkdev/rd.inc" ; ramdisk driver
include "blkdev/disk.inc" ; support for plug-n-play disks
include "blkdev/disk_cache.inc" ; caching for plug-n-play disks
;parser file names
include "fs/parse_fn.inc"
include "fs/fs_lfn.inc" ; sysfunction 70
; work with conf lib
include "core/conf_lib.inc"
include "network/stack.inc"
; load external lib
include "core/ext_lib.inc"
; list of external functions
include "imports.inc"
include "imports.inc" ; list of external functions