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1. Execution of files with long names (function 70.7).

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2. Function 70 now supports folders on ramdisk.


git-svn-id: svn://kolibrios.org@91 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Evgeny Grechnikov (Diamond) 2006-06-26 12:13:58 +00:00
parent 3ac6e40242
commit c1783c769f
6 changed files with 902 additions and 187 deletions
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439
kernel/trunk/blkdev/rd.inc
View File

@ -914,25 +914,104 @@ ramdisk_root_next:
cmc
ret
ramdisk_root_extend_dir:
stc
ret
ramdisk_notroot_next:
add edi, 0x20
test edi, 0x1FF
jz ramdisk_notroot_next_sector
ret ; CF=0
ramdisk_notroot_next_sector:
push ecx
mov ecx, [eax]
mov ecx, [ecx*2+0x280000]
and ecx, 0xFFF
cmp ecx, 2849
jae ramdisk_notroot_first.err2
mov [eax], ecx
pop ecx
ramdisk_notroot_first:
mov eax, [eax]
cmp eax, 2
jb .err
cmp eax, 2849
jae .err
shl eax, 9
lea edi, [eax+(31 shl 9)+0x100000]
clc
ret
.err2:
pop ecx
.err:
stc
ret
ramdisk_notroot_next_write:
test edi, 0x1FF
jz ramdisk_notroot_next_sector
ramdisk_root_next_write:
ret
ramdisk_notroot_extend_dir:
pusha
xor eax, eax
mov edi, 0x280000
mov ecx, 2849
repnz scasw
jnz .notfound
mov word [edi-2], 0xFFF
sub edi, 0x280000
shr edi, 1
dec edi
mov eax, [esp+28]
mov ecx, [eax]
mov [0x280000+ecx*2], di
mov [eax], edi
shl edi, 9
add edi, (31 shl 9)+0x100000
mov [esp], edi
xor eax, eax
mov ecx, 128
rep stosd
popa
clc
ret
.notfound:
popa
stc
ret
rd_find_lfn:
; in: esi->name
; out: CF=1 - file not found
; else CF=0 and edi->direntry
push esi edi
push 0
push ramdisk_root_first
push ramdisk_root_next
.loop:
call fat_find_lfn
jc .notfound
cmp byte [esi], 0
jnz .notfound
add esp, 12
pop esi
ret ; CF=0
jz .found
test byte [edi+11], 10h
jz .notfound
movzx eax, word [edi+26]
mov [esp+8], eax
mov dword [esp+4], ramdisk_notroot_first
mov dword [esp], ramdisk_notroot_next
jmp .loop
.notfound:
add esp, 8
add esp, 12
pop edi esi
stc
ret
.found:
mov eax, [esp+8]
add esp, 16 ; CF=0
pop esi
ret
;----------------------------------------------------------------
;
@ -1041,37 +1120,76 @@ fs_RamdiskRead:
;
;--------------------------------------------------------------
fs_RamdiskReadFolder:
push edi
cmp byte [esi], 0
jz @f
; ramdisk doesn't support folders
mov eax, ERROR_ACCESS_DENIED
jz .root
call rd_find_lfn
jnc .found
pop edi
or ebx, -1
mov eax, ERROR_FILE_NOT_FOUND
ret
@@:
push esi edi ecx
.found:
test byte [edi+11], 0x10
jnz .found_dir
pop edi
or ebx, -1
mov eax, ERROR_ACCESS_DENIED
ret
.found_dir:
movzx eax, word [edi+26]
add eax, 31
push 0
jmp .doit
.root:
mov eax, 19
push 14
.doit:
push esi ecx ebp
sub esp, 262*2 ; reserve space for LFN
mov ebp, esp
push dword [ebx+4] ; for fat_get_name: read ANSI/UNICODE names
mov ebx, [ebx]
; init header
push ecx
push eax ecx
mov edi, edx
mov ecx, 32/4
xor eax, eax
rep stosd
mov byte [edx], 1 ; version
pop ecx
push ebp
sub esp, 262*2 ; allocate space for LFN
mov ebp, esp
push dword [ebx+4] ; for fat_get_name: read ANSI/UNICODE name
mov ebx, [ebx]
; read root
pop ecx eax
mov esi, edi ; esi points to block of data of folder entry (BDFE)
mov edi, 0x100000+512*19
.main_loop:
mov edi, eax
shl edi, 9
add edi, 0x100000
push eax
.l1:
call fat_get_name
jc .l2
cmp byte [edi+11], 0xF
jnz @f
jnz .do_bdfe
add edi, 0x20
test edi, 0x1FF
jnz .do_bdfe
pop eax
inc eax
dec byte [esp+262*2+16]
jz .done
jns @f
; read next sector from FAT
mov eax, [(eax-31-1)*2+0x280000]
and eax, 0xFFF
cmp eax, 0xFF8
jae .done
add eax, 31
mov byte [esp+262*2+16], 0
@@:
mov edi, eax
shl edi, 9
add edi, 0x100000
push eax
.do_bdfe:
inc dword [edx+8] ; new file found
dec ebx
jns .l2
@ -1081,8 +1199,23 @@ fs_RamdiskReadFolder:
call fat_entry_to_bdfe
.l2:
add edi, 0x20
cmp edi, 0x100000+512*33
jb .l1
test edi, 0x1FF
jnz .l1
pop eax
inc eax
dec byte [esp+262*2+16]
jz .done
jns @f
; read next sector from FAT
mov eax, [(eax-31-1)*2+0x280000]
and eax, 0xFFF
cmp eax, 0xFF8
jae .done
add eax, 31
mov byte [esp+262*2+16], 0
@@:
jmp .main_loop
.done:
add esp, 262*2+4
pop ebp
mov ebx, [edx+4]
@ -1091,7 +1224,7 @@ fs_RamdiskReadFolder:
js @f
mov al, ERROR_END_OF_FILE
@@:
pop ecx edi esi
pop ecx esi edi edi
ret
iglobal
@ -1346,7 +1479,8 @@ fat_gen_short_name:
fs_RamdiskRewrite:
cmp byte [esi], 0
jz @b
; ramdisk doesn't support folders
pushad
xor ebp, ebp
push esi
@@:
lodsb
@ -1354,18 +1488,59 @@ fs_RamdiskRewrite:
jz @f
cmp al, '/'
jnz @b
lea ebp, [esi-1]
jmp @b
@@:
pop esi
.err5:
mov eax, 5 ; file not found
test ebp, ebp
jnz .noroot
push ramdisk_root_extend_dir
push ramdisk_root_next_write
push ebp
push ramdisk_root_first
push ramdisk_root_next
jmp .common1
.noroot:
; check existence
mov byte [ebp], 0
call rd_find_lfn
mov byte [ebp], '/'
lea esi, [ebp+1]
jnc @f
mov eax, ERROR_FILE_NOT_FOUND
.ret1:
mov [esp+28], eax
popad
xor ebx, ebx
ret
@@:
pop esi
; check existence
push edi
call rd_find_lfn
test byte [edi+11], 0x10 ; must be directory
mov eax, ERROR_ACCESS_DENIED
jz .ret1
movzx ebp, word [edi+26] ; ebp=cluster
mov eax, ERROR_FAT_TABLE
cmp ebp, 2
jb .ret1
cmp ebp, 2849
jae .ret1
push ramdisk_notroot_extend_dir
push ramdisk_notroot_next_write
push ebp
push ramdisk_notroot_first
push ramdisk_notroot_next
.common1:
call fat_find_lfn
jc .notfound
; found, delete FAT chain
; found; must not be directory
test byte [edi+11], 10h
jz @f
add esp, 20
popad
mov eax, ERROR_ACCESS_DENIED
xor ebx, ebx
ret
@@:
; delete FAT chain
push edi
xor eax, eax
mov dword [edi+28], eax ; zero size
@ -1392,17 +1567,24 @@ fs_RamdiskRewrite:
; file is not found; generate short name
call fat_name_is_legal
jc @f
pop edi
jmp .err5
add esp, 20
popad
mov eax, ERROR_FILE_NOT_FOUND
xor ebx, ebx
ret
@@:
sub esp, 12
mov edi, esp
call fat_gen_short_name
.test_short_name_loop:
push esi ecx
mov esi, 0x100000+512*19
push esi edi ecx
mov esi, edi
lea eax, [esp+12+12+8]
mov [eax], ebp
call dword [eax-4]
jc .found
.test_short_name_entry:
cmp byte [esi+11], 0xF
cmp byte [edi+11], 0xF
jz .test_short_name_cont
mov ecx, 11
push esi edi
@ -1410,22 +1592,22 @@ fs_RamdiskRewrite:
pop edi esi
jz .short_name_found
.test_short_name_cont:
add esi, 20h
cmp esi, 0x100000+512*33
jb .test_short_name_entry
pop ecx esi
lea eax, [esp+12+12+8]
call dword [eax-8]
jnc .test_short_name_entry
jmp .found
.short_name_found:
pop ecx edi esi
call fat_next_short_name
pop ecx esi
jnc .test_short_name_loop
.disk_full:
add esp, 12
pop edi
add esp, 12+20
popad
mov eax, ERROR_DISK_FULL
xor ebx, ebx
ret
.found:
pop ecx edi esi
; now find space in directory
; we need to save LFN <=> LFN is not equal to short name <=> generated name contains '~'
mov al, '~'
@ -1452,9 +1634,15 @@ fs_RamdiskRewrite:
div ecx
pop edx
.notilde:
push -1
push -1
; find <eax> successive entries in directory
xor ecx, ecx
mov edi, 0x100000+512*19
push eax
lea eax, [esp+12+8+12+8]
mov [eax], ebp
call dword [eax-4]
pop eax
.scan_dir:
cmp byte [edi], 0
jz .free
@ -1462,19 +1650,36 @@ fs_RamdiskRewrite:
jz .free
xor ecx, ecx
.scan_cont:
add edi, 0x20
cmp edi, 0x100000+512*33
jb .scan_dir
pop edi ecx
jmp .disk_full
push eax
lea eax, [esp+12+8+12+8]
call dword [eax-8]
pop eax
jnc .scan_dir
push eax
lea eax, [esp+12+8+12+8]
call dword [eax+8] ; extend directory
pop eax
jnc .scan_dir
add esp, 8+8+12+20
popad
mov eax, ERROR_DISK_FULL
xor ebx, ebx
ret
.free:
test ecx, ecx
jnz @f
mov [esp], edi
mov ecx, [esp+8+8+12+8]
mov [esp+4], ecx
xor ecx, ecx
@@:
inc ecx
cmp ecx, eax
jb .scan_cont
; found!
; calculate name checksum
push esi ecx
mov esi, [esp+8]
mov esi, [esp+8+8]
mov ecx, 11
xor eax, eax
@@:
@ -1483,39 +1688,40 @@ fs_RamdiskRewrite:
inc esi
loop @b
pop ecx esi
pop edi
pop dword [esp+8+12+8]
; edi points to last entry in free chunk
dec ecx
jz .nolfn
push esi
push edi
push eax
mov al, 40h
.writelfn:
sub edi, 20h
push ecx eax
mov eax, [esp+8]
sub eax, edi
shr eax, 5
cmp ecx, 1
jnz @f
or al, 40h
@@:
or al, cl
mov esi, [esp+4]
push ecx
dec ecx
imul ecx, 13
add esi, ecx
stosb
mov cl, 5
call .read_symbols
mov ax, 0xF
stosw
pop eax
mov al, [esp+4]
stosb
push eax
mov cl, 6
call .read_symbols
xor eax, eax
stosw
mov cl, 2
call .read_symbols
pop eax ecx
sub edi, 0x20
pop ecx
lea eax, [esp+8+8+12+8]
call dword [eax+4] ; next write
xor eax, eax
loop .writelfn
pop edi
pop eax
pop esi
.nolfn:
xchg esi, [esp]
@ -1537,7 +1743,7 @@ fs_RamdiskRewrite:
and word [edi+26], 0 ; low word of cluster - to be filled
and dword [edi+28], 0 ; file size - to be filled
.doit:
push ecx edx
push edx
push ecx
push edi
add edi, 26 ; edi points to low word of cluster
@ -1578,18 +1784,20 @@ fs_RamdiskRewrite:
jnz .write_loop
.done:
mov ebx, edx
pop edi edi ecx edx ecx
pop edi edi ecx edx
sub ebx, edx
mov [edi+28], ebx
pop edi
add esp, 20
popad
xor eax, eax
ret
.disk_full2:
mov ebx, edx
pop edi edi ecx edx ecx
pop edi edi ecx edx
sub ebx, edx
mov [edi+28], ebx
pop edi
add esp, 20
popad
push ERROR_DISK_FULL
pop eax
ret
@ -1654,4 +1862,95 @@ fs_RamdiskSetFileInfo:
xor eax, eax
ret
;----------------------------------------------------------------
;
; fs_RamdiskExecute - LFN variant for executing on sys floppy
;
; esi points to ramdisk filename (e.g. 'launcher')
; ebp points to full filename (e.g. '/rd/1/launcher')
; dword [ebx] = flags
; dword [ebx+4] = cmdline
;
; ret ebx,edx destroyed
; eax > 0 - PID, < 0 - error
;
;--------------------------------------------------------------
fs_RamdiskExecute:
mov edx, [ebx]
mov ebx, [ebx+4]
test ebx, ebx
jz @f
add ebx, std_application_base_address
@@:
;----------------------------------------------------------------
;
; fs_RamdiskExecute.flags - second entry
;
; esi points to ramdisk filename (kernel address)
; ebp points to full filename
; edx flags
; ebx cmdline (kernel address)
;
; ret eax > 0 - PID, < 0 - error
;
;--------------------------------------------------------------
.flags:
cmp byte [esi], 0
jnz @f
; cannot execute root!
mov eax, -ERROR_ACCESS_DENIED
ret
@@:
push edi
call rd_find_lfn
jnc .found
pop edi
mov eax, -ERROR_FILE_NOT_FOUND
ret
.found:
movzx eax, word [edi+26] ; cluster
push eax
push dword [edi+28] ; size
push .DoRead
call fs_execute
add esp, 12
pop edi
ret
.DoRead:
; read next block
; in: eax->parameters, edi->buffer
; out: eax = error code
pushad
cmp dword [eax], 0 ; file size
jz .eof
mov edx, [eax+4] ; cluster
lea esi, [edx+31]
shl esi, 9
add esi, 0x100000
mov ecx, 512/4
rep movsd
mov ecx, [eax]
sub ecx, 512
jae @f
add edi, ecx
neg ecx
push eax
xor eax, eax
rep stosb
pop eax
@@:
mov [eax], ecx
mov dx, [edx*2+0x280000]
mov [eax+4], dx ; high word is already zero
popad
xor eax, eax
ret
.eof:
popad
mov eax, 6
ret
; \end{diamond}

226
kernel/trunk/core/newproce.inc
View File

@ -307,8 +307,8 @@ new_start_application_fl:
jz .cleanfailed
mov eax,[new_process_place]
call create_app_cr3_table ;create page directory for new process
inc ecx ; -0x1E = no memory
call create_app_cr3_table ;create page directory for new process
test eax,eax
jz .cleanfailed_mem
@ -563,14 +563,16 @@ new_start_application_fl:
mov ebx,[new_process_place]
shl ebx,5
mov [0x3000+ebx+0xa],byte 0 ;set process state - running
; set if debuggee
test byte [esp+28], 1
jz .no_debug
mov [0x3000+ebx+0xa], byte 1 ; set process state - suspended
mov eax, [0x3000]
mov [0x80000+ebx*8+0xac], eax ;set debugger PID - current
jmp .debug
.no_debug:
mov [0x3000+ebx+0xa], byte 0 ; set process state - running
.debug:
mov esi,new_process_running
call sys_msg_board_str ;output information about succefull startup
@ -1269,9 +1271,9 @@ new_start_application_hd:
jz .cleanfailed
mov eax,[new_process_place]
inc ecx ; -0x1E = no memory
call create_app_cr3_table ;create page directory
test eax,eax
inc ecx ; -0x1E = no memory
jz .cleanfailed_mem
call MEM_Get_Linear_Address
@ -1392,4 +1394,222 @@ new_start_application_hd:
ret
end if
; \begin{diamond}
include 'debug.inc'
fs_execute:
; ebx - cmdline
; edx - flags
; ebp - full filename
; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it
pushad
; check filename length - with terminating NULL must be no more than 1024 symbols
mov edi, ebp
mov ecx, 1024
xor eax, eax
repnz scasb
jz @f
popad
mov eax, -ERROR_FILE_NOT_FOUND
ret
@@:
mov esi, new_process_loading
call sys_msg_board_str ; write message to message board
; lock application_table_status mutex
.table_status:
cli
cmp [application_table_status], 0
jz .stf
sti
call change_task
jmp .table_status
.stf:
call set_application_table_status
push ebx ; save command line pointer for add_app_parameters
call find_new_process_place ; find new process slot
call safe_sti
test eax, eax
mov ecx, -0x20 ; too many processes
jz .failed
; write application name
push edi
mov ecx, edi
sub ecx, ebp
mov [appl_path], ebp
mov [appl_path_size], ecx
dec edi
std
mov al, '/'
repnz scasb
cld
jnz @f
inc edi
@@:
inc edi
; now edi points to name without path
mov esi, edi
mov ecx, 8 ; 8 chars for name
mov edi, [new_process_place]
shl edi, cl
add edi, 0x80000
.copy_process_name_loop:
lodsb
cmp al, '.'
jz .copy_process_name_done
test al, al
jz .copy_process_name_done
stosb
loop .copy_process_name_loop
.copy_process_name_done:
mov al, ' '
rep stosb
pop eax
mov cl, 3 ; 3 chars for extension
dec esi
@@:
dec eax
cmp eax, esi
jbe .copy_process_ext_done
cmp byte [eax], '.'
jnz @b
lea esi, [eax+1]
.copy_process_ext_loop:
lodsb
test al, al
jz .copy_process_ext_done
stosb
loop .copy_process_ext_loop
.copy_process_ext_done:
mov al, ' '
rep stosb
; read header
lea eax, [esp+8+36]
mov edi, 0x90000
call dword [eax-4]
mov ecx, eax
neg ecx
jnz .cleanfailed
; check menuet signature
mov ecx, -0x1F
cmp dword [0x90000], 'MENU'
jnz .cleanfailed
cmp word [0x90004], 'ET'
jnz .cleanfailed
call get_app_params
mov ecx, -0x1F
test esi, esi
jz .cleanfailed
mov eax, [new_process_place]
inc ecx ; -0x1E = no memory
call create_app_cr3_table
test eax, eax
jz .cleanfailed_mem
call MEM_Get_Linear_Address
mov ebx, std_application_base_address
mov ecx, [app_mem]
add ecx, 4095
shr ecx, 12
mov edx, eax ; edx - linear address of page directory
call mem_alloc_specified_region
mov ecx, -0x1E ; no memory
test eax, eax
jz .cleanfailed_mem1
add edx, std_application_base_address shr 20
mov eax, [edx]
and eax, not 4095
call MEM_Get_Linear_Address
push edx ; save pointer to first page table
mov edx, eax
; read file
; first block is already read to 0x90000
mov eax, [edx]
and eax, not 0xFFF
call MEM_Get_Linear_Address
mov esi, 0x90000
mov edi, eax
mov ecx, 512/4
rep movsd
sub edi, eax
.loop1:
; [esp] = pointer to current page directory entry
; edx = pointer to current page table
; edi = offset in page
mov eax, [edx]
and eax, not 0xFFF
call MEM_Get_Linear_Address
push edi
add edi, eax
lea eax, [esp+8+36+8]
call dword [eax-4]
pop edi
test eax, eax
jnz .endloop1
add edi, 512 ; new offset
cmp edi, 4096
jb .loop1
xor edi, edi
add edx, 4 ; go to next page
test edx, 4096-1
jnz .loop1
pop eax
add eax, 4 ; go to next directory entry
push eax
mov eax, [eax]
and eax, not 0xFFF
call MEM_Get_Linear_Address
mov edx, eax
jmp .loop1
.endloop1:
pop edx
cmp eax, 6
jnz .cleanfailed_mem2
call new_start_application_fl.add_app_parameters
mov [esp+28], eax
popad
ret
.cleanfailed_mem2:
; file read error; free all allocated mem
mov ecx, eax
neg ecx
mov eax, [new_process_place]
call dispose_app_cr3_table
jmp .cleanfailed
.cleanfailed_mem1:
; there is mem for directory entry, but there is no mem for pages
; so free directory entry
mov eax, [new_process_place]
shl eax, 8
mov eax, [0x80000+eax+0xB8]
call MEM_Free_Page
.cleanfailed_mem:
; there is no mem for directory entry, display message
mov esi, start_not_enough_memory
call sys_msg_board_str
.cleanfailed:
push ecx
; clean process name, this avoid problems with @panel
mov edi, [new_process_place]
shl edi, 8
add edi, 0x80000
mov ecx, 11
mov al, ' '
rep stosb
pop eax
.failed:
pop ebx
mov [esp+28], eax
popad
mov [application_table_status], 0
call safe_sti
ret
; \end{diamond}

160
kernel/trunk/docs/sysfuncr.txt
View File

@ -581,7 +581,7 @@
ç⮡ë ä®àá¨à®¢ âì ¢ë¡®à ¢ ¬¥­î ¢ë室 .
======================================================================
========= ”ã­ªæ¨ï 18, ¯®¤äã­ªæ¨ï 2 - § ¢¥àè¨âì ¯à®æ¥áá/¯®â®ª. ========
==== ”ã­ªæ¨ï 18, ¯®¤äã­ªæ¨ï 2 - § ¢¥àè¨âì ¯à®æ¥áá/¯®â®ª ¯® á«®âã. ====
======================================================================
<EFBFBD> à ¬¥âàë:
* eax = 18 - ­®¬¥à ä㭪樨
@ -592,6 +592,8 @@
‡ ¬¥ç ­¨ï:
* <20>¥«ì§ï § ¢¥àè¨âì ¯®â®ª ®¯¥à æ¨®­­®© á¨á⥬ë OS/IDLE (­®¬¥à á«®â 
1), ¬®¦­® § ¢¥àè¨âì «î¡®© ®¡ëç­ë© ¯®â®ª/¯à®æ¥áá.
* ‘¬®âਠ⠪¦¥ ¯®¤äã­ªæ¨î 18 - § ¢¥à襭¨¥
¯à®æ¥áá /¯®â®ª  á § ¤ ­­ë¬ ¨¤¥­â¨ä¨ª â®à®¬.
======================================================================
= ”ã­ªæ¨ï 18, ¯®¤äã­ªæ¨ï 3 - ᤥ« âì  ªâ¨¢­ë¬ ®ª­® § ¤ ­­®£® ¯®â®ª . =
@ -929,18 +931,21 @@ db 'Kolibri',0
* eax = ®¡é¨© à §¬¥à ¨¬¥î饩áï ¯ ¬ï⨠¢ ª¨«®¡ ©â å
======================================================================
====================== ”ã­ªæ¨ï 18¡ ¯®¤äã­ªæ¨ï 18 =====================
===================== ‡ ¢¥à襭¨¥ ¯à®æ¥áá  ¯® PID'ã ===================
====================== ”ã­ªæ¨ï 18, ¯®¤äã­ªæ¨ï 18 =====================
============= ‡ ¢¥àè¨âì ¯à®æ¥áá/¯®â®ª ¯® ¨¤¥­â¨ä¨ª â®àã. =============
======================================================================
<EFBFBD> à ¬¥âàë:
* eax = 18 - ­®¬¥à ä㭪樨
* ebx = 18 - ­®¬¥à ¯®¤ä㭪樨
* ecx = PID
‚®§à é ¥¬®¥ §­ ç¥­¨¥:
* eax = 0 - ¯à®æ¥áá § ¢¥à襭.
* eax = -1 - ®è¨¡ª . (¯à®æ¥áá á â ª¨¬ PID ­¥ áãé¥áâ¢ã¥â ¨«¨ ï¥âáï
á¨á⥬­ë¬)
* ecx = ¨¤¥­â¨ä¨ª â®à ¯à®æ¥áá /¯®â®ª  (PID/TID)
‚®§¢à é ¥¬®¥ §­ ç¥­¨¥:
* eax = 0 - ãᯥ譮
* eax = -1 - ®è¨¡ª  (¯à®æ¥áá ­¥ ­ ©¤¥­ ¨«¨ ï¥âáï á¨á⥬­ë¬)
‡ ¬¥ç ­¨ï:
* <20>¥«ì§ï § ¢¥àè¨âì ¯®â®ª ®¯¥à æ¨®­­®© á¨á⥬ë OS/IDLE (­®¬¥à á«®â 
1), ¬®¦­® § ¢¥àè¨âì «î¡®© ®¡ëç­ë© ¯®â®ª/¯à®æ¥áá.
* ‘¬®âਠ⠪¦¥ ¯®¤äã­ªæ¨î 2 - § ¢¥à襭¨¥
¯à®æ¥áá /¯®â®ª  ¯® § ¤ ­­®¬ã á«®âã.
======================================================================
============ ”ã­ªæ¨ï 19 - § ¯ãáâ¨âì ¯à®£à ¬¬ã á à ¬¤¨áª . ============
@ -953,7 +958,7 @@ db 'Kolibri',0
* …᫨ eax > 0, â® eax ᮤ¥à¦¨â PID ᮧ¤ ­­®£® ¯à®æ¥áá 
* …᫨ eax < 0, â® -eax - ª®¤ ®è¨¡ª¨ ä ©«®¢®© á¨á⥬ë
‡ ¬¥ç ­¨ï:
* <20>â  äã­ªæ¨ï ãáâ à¥« ; ¨á¯®«ì§ã©â¥ ¯®¤äã­ªæ¨î 16 ä㭪樨 58.
* <20>â  äã­ªæ¨ï ãáâ à¥« ; ¨á¯®«ì§ã©â¥ ¯®¤äã­ªæ¨î 7 ä㭪樨 70.
* Š®¬ ¤­ ï áâப  ¤®«¦­  § ª ­ç¨¢ âìáï ᨬ¢®«®¬ á ª®¤®¬ 0
(ASCIIZ-áâப ); ãç¨â뢠îâáï «¨¡® ¢á¥ ᨬ¢®«ë ¤® § ¢¥àè î饣® ­ã«ï
¢ª«îç¨â¥«ì­®, «¨¡® ¯¥à¢ë¥ 256 ᨬ¢®«®¢, ¢ § ¢¨á¨¬®á⨠®â ⮣®,
@ -3111,99 +3116,6 @@ dword-
(¢¥à®ïâ­¥¥ ¢á¥£®, ­ã«¨, ­® íâ® ®¯à¥¤¥«ï¥âáï ãáâனá⢮¬) ¨
íâ® ¡ã¤¥â áç¨â âìáï ãᯥ宬 (eax=0).
======================================================================
========= ”ã­ªæ¨ï 58, ¯®¤äã­ªæ¨ï 12 - ¯®«ãç¨âì à §¬¥à ä ©« . =========
======================================================================
<EFBFBD> à ¬¥âàë:
* eax = 58 - ­®¬¥à ä㭪樨
* ebx = 㪠§ â¥«ì ­  ¨­ä®à¬ æ¨®­­ãî áâàãªâãàã
”®à¬ â ¨­ä®à¬ æ¨®­­®© áâàãªâãàë:
* +0: dword: 12 = ­®¬¥à ä㭪樨
* +4: dword: ¨£­®à¨àã¥âáï
* +8: dword: ¨£­®à¨àã¥âáï
* +12 = +0xC: dword: ¨£­®à¨àã¥âáï
* +16 = +0x10: dword: 㪠§ â¥«ì ­  ¡ãä¥à ¤«ï à ¡®âë á¨á⥬ë
(4096 ¡ ©â)
* +20 = +0x14: ASCIIZ-¨¬ï ä ©« , ¯à ¢¨«  ä®à¬¨à®¢ ­¨ï ¨¬ñ­ 㪠§ ­ë ¢
®¡é¥¬ ®¯¨á ­¨¨
‚®§¢à é ¥¬®¥ §­ ç¥­¨¥:
* eax = 0 - ãᯥ譮, ¨­ ç¥ ª®¤ ®è¨¡ª¨ ä ©«®¢®© á¨á⥬ë
* ebx = à §¬¥à ä ©«  (¢ ¡ ©â å) ¨«¨ 0 ¤«ï HD, -1 ¤«ï RD,
¥á«¨ ä ©« ­¥ ­ ©¤¥­
‡ ¬¥ç ­¨ï:
* <20>â  äã­ªæ¨ï ãáâ à¥« , ¨á¯®«ì§ã©â¥ ¯®¤äã­ªæ¨î 5 ä㭪樨 70.
* ”ã­ªæ¨ï ­¥ ¯®¤¤¥à¦¨¢ ¥âáï ¤«ï ¤¨áª¥â.
* ’¥ªãé ï ॠ«¨§ æ¨ï ¯®§¢®«ï¥â â ª¦¥ ®¯à¥¤¥«ïâì à §¬¥à ¯ ¯ª¨
(¯® 楯®çª¥ ª« áâ¥à®¢ ¢ FAT), ­® ­¥ á«¥¤ã¥â ­  íâ® ¯®« £ âìáï.
======================================================================
===== ”ã­ªæ¨ï 58, ¯®¤äã­ªæ¨ï 13 - ¯®«ãç¨âì  âਡãâë ä ©« /¯ ¯ª¨. =====
======================================================================
<EFBFBD> à ¬¥âàë:
* eax = 58 - ­®¬¥à ä㭪樨
* ebx = 㪠§ â¥«ì ­  ¨­ä®à¬ æ¨®­­ãî áâàãªâãàã
”®à¬ â ¨­ä®à¬ æ¨®­­®© áâàãªâãàë:
* +0: dword: 13 = ­®¬¥à ä㭪樨
* +4: dword: ¨£­®à¨àã¥âáï
* +8: dword: ¨£­®à¨àã¥âáï
* +12 = +0xC: dword: ¨£­®à¨àã¥âáï
* +16 = +0x10: dword: 㪠§ â¥«ì ­  ¡ãä¥à ¤«ï à ¡®âë á¨á⥬ë
(4096 ¡ ©â)
* +20 = +0x14: ASCIIZ-¨¬ï ä ©« , ¯à ¢¨«  ä®à¬¨à®¢ ­¨ï ¨¬ñ­ 㪠§ ­ë ¢
®¡é¥¬ ®¯¨á ­¨¨
‚®§¢à é ¥¬®¥ §­ ç¥­¨¥:
* eax = 0 - ãᯥ譮, ¨­ ç¥ ª®¤ ®è¨¡ª¨ ä ©«®¢®© á¨á⥬ë
* ebx = ¡ ©â FAT- âਡãâ  (¤®¯®«­¥­­ë© ­ã«ï¬¨ ¤® dword)
¨«¨ 0 ¤«ï HD, -1 ¤«ï RD, ¥á«¨ ä ©« ­¥ ­ ©¤¥­
‡­ ç¥­¨ï ¤«ï ¡¨â®¢ FAT- âਡã⮢:
* ¡¨â 0: ä ©« ⮫쪮 ¤«ï ç⥭¨ï
* ¡¨â 1: ä ©« ï¥âáï áªàëâë¬
* ¡¨â 2: ä ©« ï¥âáï á¨á⥬­ë¬
* ¡¨â 3: íâ® ­¥ ä ©«,   ¬¥âª  ⮬  (¬®¦¥â ¢áâà¥ç âìáï ⮫쪮
®¤¨­ à § ­  ¤¨áª¥, ¢ ª®à­¥¢®¬ ª â «®£¥)
* ¡¨â 4: íâ® ¯ ¯ª 
* ¡¨â 5: ä ©« ­¥  à娢¨à®¢ «áï - ¬­®£¨¥ ¯à®£à ¬¬ë  à娢 æ¨¨ ¨¬¥îâ
®¯æ¨î, ¯® ª®â®à®©  à娢¨àãîâáï ⮫쪮 ä ©«ë á ãáâ ­®¢«¥­­ë¬ í⨬
¡¨â®¬, ¯®á«¥ 祣® íâ®â ¡¨â á¡à á뢠¥âáï - íâ® ¬®¦¥â ¡ëâì ¯®«¥§­®
¤«ï  ¢â®¬ â¨ç¥áª®£® ᮧ¤ ­¨ï backup- à娢®¢, ¨¡® ¯à¨ § ¯¨á¨
¡¨â ®¡ëç­® ãáâ ­ ¢«¨¢ ¥âáï (­¥ ¢ Kolibri, ¯à ¢¤ )
‡ ¬¥ç ­¨ï:
* <20>â  äã­ªæ¨ï ãáâ à¥« , ¨á¯®«ì§ã©â¥ ¯®¤äã­ªæ¨î 5 ä㭪樨 70.
* ”ã­ªæ¨ï ­¥ ¯®¤¤¥à¦¨¢ ¥âáï ¤«ï ¤¨áª¥â.
======================================================================
====================== ”ã­ªæ¨ï 58, ¯®¤äã­ªæ¨ï 14 =====================
======= <20>®«ãç¨âì ¤ âã/¢à¥¬ï ¯®á«¥¤­¥© ¬®¤¨ä¨ª æ¨¨ ä ©« /¯ ¯ª¨. =======
======================================================================
<EFBFBD> à ¬¥âàë:
* eax = 58 - ­®¬¥à ä㭪樨
* ebx = 㪠§ â¥«ì ­  ¨­ä®à¬ æ¨®­­ãî áâàãªâãàã
”®à¬ â ¨­ä®à¬ æ¨®­­®© áâàãªâãàë:
* +0: dword: 14 = ­®¬¥à ä㭪樨
* +4: dword: ¨£­®à¨àã¥âáï
* +8: dword: ¨£­®à¨àã¥âáï
* +12 = +0xC: dword: ¨£­®à¨àã¥âáï
* +16 = +0x10: dword: 㪠§ â¥«ì ­  ¡ãä¥à ¤«ï à ¡®âë á¨á⥬ë
(4096 ¡ ©â)
* +20 = +0x14: ASCIIZ-¨¬ï ä ©« , ¯à ¢¨«  ä®à¬¨à®¢ ­¨ï ¨¬ñ­ 㪠§ ­ë ¢
®¡é¥¬ ®¯¨á ­¨¨
‚®§¢à é ¥¬®¥ §­ ç¥­¨¥:
* eax = 0 - ãᯥ譮, ¨­ ç¥ ª®¤ ®è¨¡ª¨ ä ©«®¢®© á¨á⥬ë
* ebx = ¤ â /¢à¥¬ï ¢ ä®à¬ â¥ FAT ¨«¨ 0 ¤«ï HD, -1 ¤«ï RD,
¥á«¨ ä ©« ­¥ ­ ©¤¥­
* ¬« ¤è¥¥ á«®¢® = ¢à¥¬ï ¯®á«¥¤­¥© ¬®¤¨ä¨ª æ¨¨, hhhhhmmmmmmsssss:
* ¬« ¤è¨¥ 5 ¡¨â = ç¨á«® ¤¢ãåᥪ㭤­ëå ¨­â¥à¢ «®¢, 0<=s<=29
* á«¥¤ãî騥 6 ¡¨â = ¬¨­ãâë, 0<=m<=59
* áâ à訥 5 ¡¨â = ç áë, 0<=h<=23
* áâ à襥 á«®¢® = ¤ â  ¯®á«¥¤­¥© ¬®¤¨ä¨ª æ¨¨, yyyyyyymmmmddddd:
* ¬« ¤è¨¥ 5 ¡¨â = ¤¥­ì, 1<=d<=31
* á«¥¤ãî騥 4 ¡¨â  = ¬¥áïæ, 1<=m<=12
* áâ à訥 7 ¡¨â = £®¤ ®â­®á¨â¥«ì­® 1980
‡ ¬¥ç ­¨ï:
* <20>â  äã­ªæ¨ï ãáâ à¥« , ¨á¯®«ì§ã©â¥ ¯®¤äã­ªæ¨î 5 ä㭪樨 70.
* ”ã­ªæ¨ï ­¥ ¯®¤¤¥à¦¨¢ ¥âáï ¤«ï ¤¨áª¥â.
* ‘®§¤ ­¨¥ ä ©« /¯ ¯ª¨ áç¨â ¥âáï ¬®¤¨ä¨ª æ¨¥©.
======================================================================
= ”ã­ªæ¨ï 58, ¯®¤äã­ªæ¨ï 15 - ¯®«ãç¨âì ¨­ä®à¬ æ¨î ® ä ©«®¢®© á¨á⥬¥.
======================================================================
@ -3267,6 +3179,7 @@ dword-
* eax < 0 - ¯à®¨§®è«  ®è¨¡ª , -eax ᮤ¥à¦¨â
ª®¤ ®è¨¡ª¨ ä ©«®¢®© á¨á⥬ë
‡ ¬¥ç ­¨ï:
* <20>â  äã­ªæ¨ï ãáâ à¥« , ¨á¯®«ì§ã©â¥ ¯®¤äã­ªæ¨î 7 ä㭪樨 70.
* Š®¬ ¤­ ï áâப  ¤®«¦­  § ª ­ç¨¢ âìáï ᨬ¢®«®¬ á ª®¤®¬ 0
(ASCIIZ-áâப ); ãç¨â뢠îâáï «¨¡® ¢á¥ ᨬ¢®«ë ¤® § ¢¥àè î饣® ­ã«ï
¢ª«îç¨â¥«ì­®, «¨¡® ¯¥à¢ë¥ 256 ᨬ¢®«®¢, ¢ § ¢¨á¨¬®á⨠®â ⮣®,
@ -4051,7 +3964,7 @@ Architecture Software Developer's Manual, Volume 3, Appendix B);
Ž¡é¨© ä®à¬ â ¨­ä®à¬ æ¨®­­®© áâàãªâãàë:
* +0: dword: ­®¬¥à ¯®¤ä㭪樨
* +4: dword: ᬥ饭¨¥ ¢ ä ©«¥
* +8: dword: áâ à訩 dword ᬥ饭¨ï (¤®«¦¥­ ¡ëâì 0)
* +8: dword: áâ à訩 dword ᬥ饭¨ï (¤®«¦¥­ ¡ëâì 0) ¨«¨ ¯®«¥ ä« £®¢
* +12 = +0xC: dword: à §¬¥à
* +16 = +0x10: dword: 㪠§ â¥«ì ­  ¤ ­­ë¥
* +20 = +0x14: n db: ASCIIZ-áâப  á ¨¬¥­¥¬ ä ©« 
@ -4069,10 +3982,13 @@ Architecture Software Developer's Manual, Volume 3, Appendix B);
* /FD/1 = /FLOPPYDISK/1 ¤«ï ¤®áâ㯠 ª ¯¥à¢®¬ã ä«®¯¯¨-¤¨áª®¢®¤ã,
/FD/2 = /FLOPPYDISK/2 ¤«ï ¢â®à®£® ä«®¯¯¨-¤¨áª®¢®¤ 
* /HD0/x, /HD1/x, /HD2/x, /HD3/x ¤«ï ¤®áâ㯠 ᮮ⢥âá⢥­­®
ª ãáâனá⢠¬ IDE0 (Primary Master), IDE1 (Primary Slave),
ª ¦ñá⪨¬ ¤¨áª ¬ ­  IDE0 (Primary Master), IDE1 (Primary Slave),
IDE2 (Secondary Master), IDE3 (Secondary Slave);
x - ­®¬¥à à §¤¥«  ­  ¢ë¡à ­­®¬ ¢¨­ç¥áâ¥à¥, ¨§¬¥­ï¥âáï ®â 1 ¤® 255
(­  ª ¦¤®¬ ¨§ ¢¨­ç¥áâ¥à®¢ ­ã¬¥à æ¨ï ­ ç¨­ ¥âáï á 1)
* /CD0/1, /CD1/1, /CD2/1, /CD3/1 ¤«ï ¤®áâ㯠 ᮮ⢥âá⢥­­®
ª CD ­  IDE0 (Primary Master), IDE1 (Primary Slave),
IDE2 (Secondary Master), IDE3 (Secondary Slace)
<EFBFBD>ਬ¥àë:
* '/rd/1/kernel.asm',0
* '/HD0/1/kernel.asm',0
@ -4084,6 +4000,7 @@ Architecture Software Developer's Manual, Volume 3, Appendix B);
* ¯®¤äã­ªæ¨ï 2 - ᮧ¤ ­¨¥/¯¥à¥§ ¯¨áì ä ©« 
* ¯®¤äã­ªæ¨ï 5 - ¯®«ã祭¨¥  âਡã⮢ ä ©« /¯ ¯ª¨
* ¯®¤äã­ªæ¨ï 6 - ãáâ ­®¢ª   âਡã⮢ ä ©« /¯ ¯ª¨
* ¯®¤äã­ªæ¨ï 7 - § ¯ã᪠¯à®£à ¬¬ë
======================================================================
= ”ã­ªæ¨ï 70, ¯®¤äã­ªæ¨ï 0 - ç⥭¨¥ ä ©«  á ¯®¤¤¥à¦ª®© ¤«¨­­ëå ¨¬ñ­. =
@ -4297,6 +4214,39 @@ Architecture Software Developer's Manual, Volume 3, Appendix B);
* ”ã­ªæ¨ï ­¥ ¯®¤¤¥à¦¨¢ ¥â ¢¨àâã «ì­ë¥ ¯ ¯ª¨ ⨯  /, /rd ¨
ª®à­¥¢ë¥ ¯ ¯ª¨ ⨯  /rd/1.
======================================================================
============ ”ã­ªæ¨ï 70, ¯®¤äã­ªæ¨ï 7 - § ¯ã᪠¯à®£à ¬¬ë. ============
======================================================================
<EFBFBD> à ¬¥âàë:
* eax = 70 - ­®¬¥à ä㭪樨
* ebx = 㪠§ â¥«ì ­  ¨­ä®à¬ æ¨®­­ãî áâàãªâãàã
”®à¬ â ¨­ä®à¬ æ¨®­­®© áâàãªâãàë:
* +0: dword: 7 = ­®¬¥à ¯®¤ä㭪樨
* +4: dword: ¯®«¥ ä« £®¢:
* ¡¨â 0: § ¯ãáâ¨âì ¯à®æ¥áá ª ª ®â« ¦¨¢ ¥¬ë©
* ®áâ «ì­ë¥ ¡¨âë § à¥§¥à¢¨à®¢ ­ë ¨ ¤®«¦­ë ¡ëâì ãáâ ­®¢«¥­ë ¢ 0
* +8: dword: 0 ¨«¨ 㪠§ â¥«ì ­  ASCIIZ-áâபã á ¯ à ¬¥âà ¬¨
* +12 = +0xC: dword: 0 (§ à¥§¥à¢¨à®¢ ­®)
* +16 = +0x10: dword: 0 (§ à¥§¥à¢¨à®¢ ­®)
* +20 = +0x14: ASCIIZ-¨¬ï ä ©« , ¯à ¢¨«  ä®à¬¨à®¢ ­¨ï ¨¬ñ­ 㪠§ ­ë ¢
®¡é¥¬ ®¯¨á ­¨¨
¨«¨
* +20 = +0x14: db 0
* +21 = +0x15: dd 㪠§ â¥«ì ­  ASCIIZ-áâபã á ¨¬¥­¥¬ ä ©« 
‚®§¢à é ¥¬®¥ §­ ç¥­¨¥:
* eax > 0 - ¯à®£à ¬¬  § £à㦥­ , eax ᮤ¥à¦¨â PID
* eax < 0 - ¯à®¨§®è«  ®è¨¡ª , -eax ᮤ¥à¦¨â
ª®¤ ®è¨¡ª¨ ä ©«®¢®© á¨á⥬ë
* ebx à §àãè ¥âáï
‡ ¬¥ç ­¨ï:
* Š®¬ ­¤­ ï áâப  ¤®«¦­  § ª ­ç¨¢ âìáï ᨬ¢®«®¬ á ª®¤®¬ 0
(ASCIIZ-áâப ); ãç¨â뢠îâáï «¨¡® ¢á¥ ᨬ¢®«ë ¤® § ¢¥àè î饣® ­ã«ï
¢ª«îç¨â¥«ì­®, «¨¡® ¯¥à¢ë¥ 256 ᨬ¢®«®¢, ¢ § ¢¨á¨¬®á⨠®â ⮣®,
çâ® ¬¥­ìè¥.
* …᫨ ¯à®æ¥áá § ¯ã᪠¥âáï ª ª ®â« ¦¨¢ ¥¬ë©, ®­ ᮧ¤ ñâáï
¢ § ¬®à®¦¥­­®¬ á®áâ®ï­¨¨; ¤«ï § ¯ã᪠ ¨á¯®«ì§ã©â¥
¯®¤äã­ªæ¨î 5 ä㭪樨 69.
======================================================================
========== ”ã­ªæ¨ï -1 - § ¢¥àè¨âì ¢ë¯®«­¥­¨¥ ¯®â®ª /¯à®æ¥áá  =========
======================================================================

113
kernel/trunk/fs/fat12.inc
View File

@ -1594,7 +1594,16 @@ fs_FloppyRewrite:
.common1:
call fat_find_lfn
jc .notfound
; found, delete FAT chain
; found; must not be directory
test byte [edi+11], 10h
jz @f
add esp, 28
popad
mov eax, ERROR_ACCESS_DENIED
xor ebx, ebx
ret
@@:
; delete FAT chain
push edi
xor eax, eax
mov dword [edi+28], eax ; zero size
@ -1960,4 +1969,106 @@ fs_FloppySetFileInfo:
@@:
ret
;----------------------------------------------------------------
;
; fs_FloppyExecute - LFN variant for executing from floppy
;
; esi points to floppy filename (e.g. 'dir1/name')
; ebp points to full filename (e.g. '/fd/1/dir1/name')
; dword [ebx] = flags
; dword [ebx+4] = cmdline
;
; ret ebx,edx destroyed
; eax > 0 - PID, < 0 - error
;
;--------------------------------------------------------------
fs_FloppyExecute:
mov edx, [ebx]
mov ebx, [ebx+4]
test ebx, ebx
jz @f
add ebx, std_application_base_address
@@:
;----------------------------------------------------------------
;
; fs_FloppyExecute.flags - second entry
;
; esi points to floppy filename (kernel address)
; ebp points to full filename
; edx flags
; ebx cmdline (kernel address)
;
; ret eax > 0 - PID, < 0 - error
;
;--------------------------------------------------------------
.flags:
call read_flp_fat
cmp byte [esi], 0
jnz @f
; cannot execute root!
mov eax, -ERROR_ACCESS_DENIED
ret
@@:
push edi
call fd_find_lfn
jnc .found
pop edi
mov eax, -ERROR_FILE_NOT_FOUND
ret
.found:
movzx eax, word [edi+26] ; cluster
push eax
push dword [edi+28] ; size
push .DoRead
call fs_execute
add esp, 12
pop edi
ret
.DoRead:
; read next block
; in: eax->parameters, edi->buffer
; out: eax = error code
pushad
cmp dword [eax], 0 ; file size
jz .eof
mov eax, [eax+4] ; cluster
add eax, 31
call read_chs_sector
cmp [FDC_Status], 0
jnz .err
pop edi
mov esi, 0xD000
push edi
mov ecx, 512/4
rep movsd
mov eax, [esp+28]
mov ecx, [eax]
sub ecx, 512
jae @f
add edi, ecx
neg ecx
push eax
xor eax, eax
rep stosb
pop eax
@@:
mov [eax], ecx
mov edx, [eax+4]
mov dx, [edx*2+0x282000]
mov [eax+4], dx ; high word is already zero
popad
xor eax, eax
ret
.eof:
popad
mov eax, 6
ret
.err:
popad
mov eax, 11
ret
; \end{diamond}

132
kernel/trunk/fs/fat32.inc
View File

@ -7,6 +7,7 @@
;; Copyright 2002 Paolo Minazzi, paolo.minazzi@inwind.it ;;
;; ;;
;; See file COPYING for details ;;
;; 23.06.2006 LFN start application - diamond ;;
;; 15.06.2006 LFN get/set file/folder info - diamond ;;
;; 27.05.2006 LFN create/rewrite file - diamond ;;
;; 04.05.2006 LFN read folder - diamond ;;
@ -3396,7 +3397,16 @@ fs_HdRewrite:
.common1:
call fat_find_lfn
jc .notfound
; found, delete FAT chain
; found; must not be directory
test byte [edi+11], 10h
jz @f
add esp, 32
popad
mov eax, ERROR_ACCESS_DENIED
xor ebx, ebx
ret
@@:
; delete FAT chain
push edi
xor eax, eax
mov dword [edi+28], eax ; zero size
@ -3801,4 +3811,124 @@ fs_HdSetFileInfo:
xor eax, eax
ret
;----------------------------------------------------------------
;
; fs_HdExecute - LFN variant for executing from harddisk
;
; esi points to hd filename (e.g. 'dir1/name')
; ebp points to full filename (e.g. '/hd0/1/dir1/name')
; dword [ebx] = flags
; dword [ebx+4] = cmdline
;
; ret ebx,edx destroyed
; eax > 0 - PID, < 0 - error
;
;--------------------------------------------------------------
fs_HdExecute:
mov edx, [ebx]
mov ebx, [ebx+4]
test ebx, ebx
jz @f
add ebx, std_application_base_address
@@:
;----------------------------------------------------------------
;
; fs_HdExecute.flags - second entry
;
; esi points to floppy filename (kernel address)
; ebp points to full filename
; edx flags
; ebx cmdline (kernel address)
;
; ret eax > 0 - PID, < 0 - error
;
;--------------------------------------------------------------
.flags:
cmp [fat_type], 0
jnz @f
mov eax, ERROR_UNKNOWN_FS
ret
@@:
cmp byte [esi], 0
jnz @f
; cannot execute root!
mov eax, -ERROR_ACCESS_DENIED
ret
@@:
push edi
call hd_find_lfn
jnc .found
pop edi
mov eax, -ERROR_FILE_NOT_FOUND
cmp [hd_error], 0
jz @f
mov al, -11
@@:
ret
.found:
mov eax, [edi+20-2]
mov ax, [edi+26]
push 0
push eax
push dword [edi+28] ; size
push .DoRead
call fs_execute
add esp, 16
pop edi
ret
.DoRead:
; read next block
; in: eax->parameters, edi->buffer
; out: eax = error code
pushad
cmp dword [eax], 0 ; file size
jz .eof
add eax, 4
call fat_get_sector
mov ebx, edi
call hd_read
cmp [hd_error], 0
jnz .err
mov eax, [esp+28]
mov ecx, [eax]
sub ecx, 512
jae @f
lea edi, [edi+ecx+512]
neg ecx
push eax
xor eax, eax
rep stosb
pop eax
@@:
mov [eax], ecx
mov edx, [eax+8]
inc edx
cmp edx, [SECTORS_PER_CLUSTER]
jb @f
push eax
mov eax, [eax+4]
call get_FAT
cmp [hd_error], 0
jnz .err
mov ecx, eax
pop eax
mov [eax+4], ecx
xor edx, edx
@@:
mov [eax+8], edx
popad
xor eax, eax
ret
.eof:
popad
mov eax, 6
ret
.err:
popad
mov eax, 11
ret
; \end{diamond}

7
kernel/trunk/fs/fs_lfn.inc
View File

@ -81,7 +81,7 @@ file_system_lfn:
; 4 : set end of file - not implemented yet
; 5 : get file/directory attributes structure
; 6 : set file/directory attributes structure
; 7 : start application - not implemented yet
; 7 : start application
; 8 : delete file - not implemented yet
; 9 : create directory - not implemented yet
; 10: rename file/directory - not implemented yet
@ -90,11 +90,13 @@ file_system_lfn:
; parse file name
xchg ebx, eax
lea esi, [ebx+20]
mov ebp, esi ; for 'start app' function full path must be known
lodsb
test al, al
jnz @f
mov esi, [esi]
add esi, std_application_base_address
mov ebp, esi
lodsb
@@:
cmp al, '/'
@ -349,6 +351,7 @@ fs_RamdiskServices:
dd fs_NotImplemented
dd fs_RamdiskGetFileInfo
dd fs_RamdiskSetFileInfo
dd fs_RamdiskExecute
fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4
fs_OnFloppy:
@ -377,6 +380,7 @@ fs_FloppyServices:
dd fs_NotImplemented
dd fs_FloppyGetFileInfo
dd fs_FloppySetFileInfo
dd fs_FloppyExecute
fs_NumFloppyServices = ($ - fs_FloppyServices)/4
fs_OnHd0:
@ -443,6 +447,7 @@ fs_HdServices:
dd fs_NotImplemented
dd fs_HdGetFileInfo
dd fs_HdSetFileInfo
dd fs_HdExecute
fs_NumHdServices = ($ - fs_HdServices)/4
;*******************************************************