mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-27 00:39:41 +03:00
798 lines
20 KiB
PHP
798 lines
20 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision$
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ERROR_SUCCESS = 0
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ERROR_DISK_BASE = 1
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ERROR_UNSUPPORTED_FS = 2
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ERROR_UNKNOWN_FS = 3
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ERROR_PARTITION = 4
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ERROR_FILE_NOT_FOUND = 5
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ERROR_END_OF_FILE = 6
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ERROR_MEMORY_POINTER = 7
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ERROR_DISK_FULL = 8
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ERROR_FAT_TABLE = 9 ;deprecated
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ERROR_FS_FAIL = 9
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ERROR_ACCESS_DENIED = 10
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ERROR_DEVICE = 11
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image_of_eax EQU esp+32
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image_of_ebx EQU esp+20
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; System function 70 - files with long names (LFN)
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; diamond, 2006
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iglobal
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; in this table names must be in lowercase
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rootdirs:
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;**********************************************
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db 3,'cd0'
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dd fs_OnCd0
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dd fs_NextCd
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db 3,'cd1'
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dd fs_OnCd1
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dd fs_NextCd
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db 3,'cd2'
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dd fs_OnCd2
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dd fs_NextCd
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db 3,'cd3'
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dd fs_OnCd3
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dd fs_NextCd
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;***********************************************
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db 0
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virtual_root_query:
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;**********************************************
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dd fs_HasCd0
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db 'cd0',0
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dd fs_HasCd1
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db 'cd1',0
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dd fs_HasCd2
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db 'cd2',0
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dd fs_HasCd3
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db 'cd3',0
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;**********************************************
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dd 0
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endg
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file_system_lfn_protected:
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pushad
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call protect_from_terminate
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call file_system_lfn
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call unprotect_from_terminate
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popad
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mov [image_of_eax], eax
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mov [image_of_ebx], ebx
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ret
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file_system_lfn:
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; in: ebx->fileinfo block
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; operation codes:
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; 0 : read file
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; 1 : read folder
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; 2 : create/rewrite file
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; 3 : write/append to file
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; 4 : set end of file
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; 5 : get file/directory attributes structure
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; 6 : set file/directory attributes structure
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; 7 : start application
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; 8 : delete file
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; 9 : create directory
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; parse file name
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lea esi, [ebx+20]
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lodsb
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test al, al
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jnz @f
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mov esi, [esi]
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lodsb
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@@:
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cmp al, '/'
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jz .notcurdir
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dec esi
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mov ebp, esi
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test al, al
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jnz @f
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xor ebp, ebp
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@@:
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mov esi, [current_slot]
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mov esi, [esi+APPDATA.cur_dir]
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jmp .parse_normal
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.notcurdir:
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cmp byte [esi], 0
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jz .rootdir
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call process_replace_file_name
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.parse_normal:
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cmp dword [ebx], 7
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jne @F
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mov edx, [ebx+4]
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mov ebx, [ebx+8]
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call fs_execute; esi+ebp, ebx, edx
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mov [image_of_eax], eax
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ret
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@@:
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mov edi, rootdirs-8
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xor ecx, ecx
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push esi
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.scan1:
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pop esi
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add edi, ecx
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scasd
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scasd
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mov cl, byte [edi]
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test cl, cl
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jz .notfound_try
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inc edi
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push esi
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@@:
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lodsb
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or al, 20h
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scasb
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loopz @b
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jnz .scan1
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lodsb
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cmp al, '/'
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jz .found1
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test al, al
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jnz .scan1
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pop eax
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; directory /xxx
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.maindir:
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mov esi, [edi+4]
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.maindir_noesi:
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cmp dword [ebx], 1
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jnz .access_denied
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xor eax, eax
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mov ebp, [ebx+12] ;количество блоков для считывания
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mov edx, [ebx+16] ;куда записывать рузельтат
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; add edx, std_application_base_address
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push dword [ebx+4] ; first block
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mov ebx, [ebx+8] ; flags
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; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler
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mov edi, edx
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push ecx
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mov ecx, 32/4
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rep stosd
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pop ecx
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mov byte [edx], 1 ; version
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.maindir_loop:
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call esi
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jc .maindir_done
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inc dword [edx+8]
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dec dword [esp]
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jns .maindir_loop
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dec ebp
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js .maindir_loop
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inc dword [edx+4]
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mov dword [edi], 0x10 ; attributes: folder
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mov dword [edi+4], 1 ; name type: UNICODE
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push eax
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xor eax, eax
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add edi, 8
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push ecx
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mov ecx, 40/4-2
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rep stosd
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pop ecx
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pop eax
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push eax edx
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; convert number in eax to decimal UNICODE string
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push edi
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push ecx
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push -'0'
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mov ecx, 10
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@@:
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xor edx, edx
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div ecx
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push edx
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test eax, eax
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jnz @b
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@@:
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pop eax
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add al, '0'
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stosb
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test bl, 1 ; UNICODE name?
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jz .ansi2
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mov byte [edi], 0
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inc edi
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.ansi2:
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test al, al
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jnz @b
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mov byte [edi-1], 0
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pop ecx
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pop edi
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; UNICODE name length is 520 bytes, ANSI - 264
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add edi, 520
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test bl, 1
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jnz @f
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sub edi, 520-264
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@@:
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pop edx eax
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jmp .maindir_loop
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.maindir_done:
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pop eax
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mov ebx, [edx+4]
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xor eax, eax
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dec ebp
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js @f
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mov al, ERROR_END_OF_FILE
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@@:
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mov [image_of_eax], eax
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mov [image_of_ebx], ebx
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ret
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; directory /
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.rootdir:
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cmp dword [ebx], 1 ; read folder?
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jz .readroot
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.access_denied:
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mov dword [image_of_eax], 10 ; access denied
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ret
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.readroot:
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; virtual root folder - special handler
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mov ebp, [ebx+12]
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mov edx, [ebx+16]
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; add edx, std_application_base_address
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push dword [ebx+4] ; first block
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mov ebx, [ebx+8] ; flags
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xor eax, eax
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; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area
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mov edi, edx
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mov ecx, 32/4
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rep stosd
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mov byte [edx], 1 ; version
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sub esp, 16
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.readroot_ah_loop2:
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push edi
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lea edi, [esp+4]
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call dyndisk_enum_root
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pop edi
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test eax, eax
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jz .readroot_done_dynamic
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inc dword [edx+8]
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dec dword [esp+16]
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jns .readroot_ah_loop2
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dec ebp
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js .readroot_ah_loop2
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push eax
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xor eax, eax
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inc dword [edx+4]
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mov dword [edi], 0x10 ; attributes: folder
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mov dword [edi+4], ebx
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add edi, 8
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mov ecx, 40/4-2
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rep stosd
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push esi edi
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lea esi, [esp+12]
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@@:
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lodsb
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stosb
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test bl, 1
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jz .ansi3
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mov byte [edi], 0
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inc edi
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.ansi3:
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test al, al
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jnz @b
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pop edi esi eax
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add edi, 520
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test bl, 1
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jnz .readroot_ah_loop2
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sub edi, 520-264
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jmp .readroot_ah_loop2
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.readroot_done_dynamic:
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add esp, 16
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mov esi, virtual_root_query
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.readroot_loop:
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cmp dword [esi], eax
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jz .readroot_done
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call dword [esi]
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add esi, 4
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test eax, eax
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jnz @f
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.readroot_next:
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or ecx, -1
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xchg esi, edi
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repnz scasb
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xchg esi, edi
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jmp .readroot_loop
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@@:
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xor eax, eax
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inc dword [edx+8]
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dec dword [esp]
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jns .readroot_next
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dec ebp
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js .readroot_next
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inc dword [edx+4]
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mov dword [edi], 0x10 ; attributes: folder
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mov dword [edi+4], ebx ; name type: UNICODE
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add edi, 8
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mov ecx, 40/4-2
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rep stosd
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push edi
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@@:
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lodsb
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stosb
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test bl, 1
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jz .ansi
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mov byte [edi], 0
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inc edi
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.ansi:
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test eax, eax
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jnz @b
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pop edi
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add edi, 520
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test bl, 1
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jnz .readroot_loop
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sub edi, 520-264
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jmp .readroot_loop
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.readroot_done:
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pop eax
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mov ebx, [edx+4]
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xor eax, eax
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dec ebp
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js @f
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mov al, ERROR_END_OF_FILE
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@@:
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mov [image_of_eax], eax
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mov [image_of_ebx], ebx
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ret
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.notfound_try:
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call dyndisk_handler
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.notfound:
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mov dword [image_of_eax], ERROR_FILE_NOT_FOUND
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and dword [image_of_ebx], 0
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ret
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.notfounda:
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cmp edi, esp
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jnz .notfound
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call dword [edi+4]
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add esp, 16
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jmp .notfound
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.found1:
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pop eax
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cmp byte [esi], 0
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jz .maindir
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.found2:
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; read partition number
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xor ecx, ecx
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xor eax, eax
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@@:
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lodsb
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cmp al, '/'
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jz .done1
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test al, al
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jz .done1
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sub al, '0'
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cmp al, 9
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ja .notfounda
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lea ecx, [ecx*5]
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lea ecx, [ecx*2+eax]
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jmp @b
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.done1:
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jecxz .notfounda
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test al, al
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jnz @f
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dec esi
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@@:
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cmp byte [esi], 0
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jnz @f
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test ebp, ebp
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jz @f
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mov esi, ebp
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xor ebp, ebp
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@@:
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; now [edi] contains handler address, ecx - partition number,
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; esi points to ASCIIZ string - rest of name
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jmp dword [edi]
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; handlers for devices
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; in: ecx = 0 => query virtual directory /xxx
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; in: ecx = partition number
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; esi -> relative (for device) name
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; ebx -> fileinfo
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; ebp = 0 or pointer to rest of name from folder addressed by esi
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; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx
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fs_NotImplemented:
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mov eax, 2
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ret
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;*******************************************************
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fs_OnCd0:
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call reserve_cd
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mov [ChannelNumber], 1
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mov [DiskNumber], 0
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push 6
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push 1
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jmp fs_OnCd
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fs_OnCd1:
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call reserve_cd
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mov [ChannelNumber], 1
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mov [DiskNumber], 1
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push 4
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push 2
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jmp fs_OnCd
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fs_OnCd2:
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call reserve_cd
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mov [ChannelNumber], 2
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mov [DiskNumber], 0
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push 2
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push 3
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jmp fs_OnCd
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fs_OnCd3:
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call reserve_cd
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mov [ChannelNumber], 2
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mov [DiskNumber], 1
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push 0
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push 4
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fs_OnCd:
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call reserve_cd_channel
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pop eax
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mov [cdpos], eax
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pop eax
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cmp ecx, 0x100
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jae .nf
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push ecx ebx
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mov cl, al
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mov bl, [DRIVE_DATA+1]
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shr bl, cl
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test bl, 2
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pop ebx ecx
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jnz @f
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.nf:
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call free_cd_channel
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and [cd_status], 0
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mov dword [image_of_eax], 5 ; not found
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ret
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@@:
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mov ecx, [ebx+12]
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mov edx, [ebx+16]
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; add edx, std_application_base_address
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mov eax, [ebx]
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cmp eax, fs_NumCdServices
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jae .not_impl
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add ebx, 4
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call dword [fs_CdServices + eax*4]
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call free_cd_channel
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and [cd_status], 0
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mov [image_of_eax], eax
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mov [image_of_ebx], ebx
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ret
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.not_impl:
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call free_cd_channel
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and [cd_status], 0
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mov dword [image_of_eax], 2 ; not implemented
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ret
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fs_CdServices:
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dd fs_CdRead
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dd fs_CdReadFolder
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dd fs_NotImplemented
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dd fs_NotImplemented
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dd fs_NotImplemented
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dd fs_CdGetFileInfo
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dd fs_NotImplemented
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dd 0
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dd fs_NotImplemented
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dd fs_NotImplemented
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fs_NumCdServices = ($ - fs_CdServices)/4
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;*******************************************************
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fs_HasCd0:
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test byte [DRIVE_DATA+1], 10000000b
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setnz al
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ret
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fs_HasCd1:
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test byte [DRIVE_DATA+1], 00100000b
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setnz al
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ret
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fs_HasCd2:
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test byte [DRIVE_DATA+1], 00001000b
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setnz al
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ret
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fs_HasCd3:
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test byte [DRIVE_DATA+1], 00000010b
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setnz al
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ret
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;*******************************************************
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; fs_NextXXX functions:
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; in: eax = partition number, from which start to scan
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; out: CF=1 => no more partitions
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; CF=0 => eax=next partition number
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;*******************************************************
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fs_NextCd:
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; we always have /cdX/1
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test eax, eax
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stc
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jnz @f
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mov al, 1
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clc
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@@:
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ret
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;*******************************************************
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;-----------------------------------------------------------------------------
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process_replace_file_name:
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; in
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; esi - path with filename(f.70)
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;
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; out
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; ebp - full filename
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pushfd
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cli
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mov ebp, [full_file_name_table]
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xor edi, edi
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.loop:
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cmp edi, [full_file_name_table.size]
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jae .notfound
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push esi edi
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shl edi, 7 ; edi*128
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add edi, ebp
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@@:
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cmp byte [edi], 0 ; end of dir_name
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jz .dest_done
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lodsb
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test al, al
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jz .cont
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or al, 20h ; 32 - space char
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scasb
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jz @b
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jmp .cont
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.dest_done:
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cmp byte [esi], 0
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jz .found
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cmp byte [esi], '/'
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jnz .cont
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inc esi
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jmp .found
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.cont:
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pop edi esi
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inc edi
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jmp .loop
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.found:
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pop edi eax
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shl edi, 7 ; edi*128
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add edi, ebp
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mov ebp, esi
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cmp byte [esi], 0
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lea esi, [edi+64]
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jnz .ret
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.notfound:
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xor ebp, ebp
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.ret:
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popfd
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ret
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;-----------------------------------------------------------------------------
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uglobal
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lock_flag_for_f30_3 rb 1
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endg
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|
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sys_current_directory:
|
|
; mov esi, [current_slot]
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|
; mov esi, [esi+APPDATA.cur_dir]
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|
; mov edx, esi
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|
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;get length string of appdata.cur_dir
|
|
mov eax, [current_slot]
|
|
mov edi, [eax+APPDATA.cur_dir]
|
|
|
|
dec ebx
|
|
jz .set
|
|
dec ebx
|
|
jz .get
|
|
dec ebx
|
|
jz .mount_additional_directory
|
|
ret
|
|
|
|
.mount_additional_directory:
|
|
; sysfunction 30.2: [for app] eax=30,ebx=3,ecx->dir name+dir path (128)
|
|
; for our code: nothing
|
|
|
|
; check lock of the function
|
|
cmp [lock_flag_for_f30_3], 1
|
|
je @f
|
|
|
|
mov esi, ecx
|
|
mov edi, sysdir_name1
|
|
; copying fake directory name
|
|
mov ecx, 63
|
|
pushfd
|
|
cli
|
|
cld
|
|
rep movsb
|
|
; terminator of name, in case if we get the inlet trash
|
|
inc esi
|
|
xor eax, eax
|
|
stosb
|
|
; copying real directory path for mounting
|
|
mov ecx, 63
|
|
rep movsb
|
|
; terminator of name, in case if we get the inlet trash
|
|
xor eax, eax
|
|
stosb
|
|
; increase the pointer of inputs for procedure "process_replace_file_name"
|
|
mov [full_file_name_table.size], 2
|
|
; block the ability to call f.30.3 because for one session is necessary
|
|
; for us only once
|
|
mov [lock_flag_for_f30_3], 1
|
|
popfd
|
|
@@:
|
|
ret
|
|
|
|
.get:
|
|
; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len
|
|
; for our code: ebx->buffer,ecx=len
|
|
max_cur_dir equ 0x1000
|
|
|
|
mov ebx, edi
|
|
|
|
push ecx
|
|
push edi
|
|
|
|
xor eax, eax
|
|
mov ecx, max_cur_dir
|
|
|
|
repne scasb ;find zerro at and string
|
|
jnz .error ; no zero in cur_dir: internal error, should not happen
|
|
|
|
sub edi, ebx ;lenght for copy
|
|
inc edi
|
|
mov [esp+32+8], edi ;return in eax
|
|
|
|
cmp edx, edi
|
|
jbe @f
|
|
mov edx, edi
|
|
@@:
|
|
;source string
|
|
pop esi
|
|
;destination string
|
|
pop edi
|
|
cmp edx, 1
|
|
jbe .ret
|
|
|
|
mov al, '/' ;start string with '/'
|
|
stosb
|
|
mov ecx, edx
|
|
rep movsb ;copy string
|
|
.ret:
|
|
ret
|
|
|
|
.error:
|
|
add esp, 8
|
|
or dword [esp+32], -1 ;error not found zerro at string ->[eax+APPDATA.cur_dir]
|
|
ret
|
|
.set:
|
|
; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string
|
|
; for our code: ebx->string to set
|
|
; use generic resolver with APPDATA.cur_dir as destination
|
|
push max_cur_dir ;0x1000
|
|
push edi ;destination
|
|
mov ebx, ecx
|
|
call get_full_file_name
|
|
ret
|
|
|
|
; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination
|
|
; destroys all registers except ebp,esp
|
|
get_full_file_name:
|
|
push ebp
|
|
mov esi, [current_slot]
|
|
mov esi, [esi+APPDATA.cur_dir]
|
|
mov edx, esi
|
|
@@:
|
|
inc esi
|
|
cmp byte [esi-1], 0
|
|
jnz @b
|
|
dec esi
|
|
cmp byte [ebx], '/'
|
|
jz .set_absolute
|
|
; string gives relative path
|
|
mov edi, [esp+8] ; destination
|
|
.relative:
|
|
cmp byte [ebx], 0
|
|
jz .set_ok
|
|
cmp word [ebx], '.'
|
|
jz .set_ok
|
|
cmp word [ebx], './'
|
|
jnz @f
|
|
add ebx, 2
|
|
jmp .relative
|
|
@@:
|
|
cmp word [ebx], '..'
|
|
jnz .doset_relative
|
|
cmp byte [ebx+2], 0
|
|
jz @f
|
|
cmp byte [ebx+2], '/'
|
|
jnz .doset_relative
|
|
@@:
|
|
dec esi
|
|
cmp byte [esi], '/'
|
|
jnz @b
|
|
add ebx, 3
|
|
jmp .relative
|
|
.set_ok:
|
|
cmp edx, edi ; is destination equal to APPDATA.cur_dir?
|
|
jz .set_ok.cur_dir
|
|
sub esi, edx
|
|
cmp esi, [esp+12]
|
|
jb .set_ok.copy
|
|
.fail:
|
|
mov byte [edi], 0
|
|
xor eax, eax ; fail
|
|
pop ebp
|
|
ret 8
|
|
.set_ok.copy:
|
|
mov ecx, esi
|
|
mov esi, edx
|
|
rep movsb
|
|
mov byte [edi], 0
|
|
.ret.ok:
|
|
mov al, 1 ; ok
|
|
pop ebp
|
|
ret 8
|
|
.set_ok.cur_dir:
|
|
mov byte [esi], 0
|
|
jmp .ret.ok
|
|
.doset_relative:
|
|
cmp edx, edi
|
|
jz .doset_relative.cur_dir
|
|
sub esi, edx
|
|
cmp esi, [esp+12]
|
|
jae .fail
|
|
mov ecx, esi
|
|
mov esi, edx
|
|
mov edx, edi
|
|
rep movsb
|
|
jmp .doset_relative.copy
|
|
.doset_relative.cur_dir:
|
|
mov edi, esi
|
|
.doset_relative.copy:
|
|
add edx, [esp+12]
|
|
mov byte [edi], '/'
|
|
inc edi
|
|
cmp edi, edx
|
|
jae .overflow
|
|
@@:
|
|
mov al, [ebx]
|
|
inc ebx
|
|
stosb
|
|
test al, al
|
|
jz .ret.ok
|
|
cmp edi, edx
|
|
jb @b
|
|
.overflow:
|
|
dec edi
|
|
jmp .fail
|
|
.set_absolute:
|
|
lea esi, [ebx+1]
|
|
call process_replace_file_name
|
|
mov edi, [esp+8]
|
|
mov edx, [esp+12]
|
|
add edx, edi
|
|
.set_copy:
|
|
lodsb
|
|
stosb
|
|
test al, al
|
|
jz .set_part2
|
|
.set_copy_cont:
|
|
cmp edi, edx
|
|
jb .set_copy
|
|
jmp .overflow
|
|
.set_part2:
|
|
mov esi, ebp
|
|
xor ebp, ebp
|
|
test esi, esi
|
|
jz .ret.ok
|
|
mov byte [edi-1], '/'
|
|
jmp .set_copy_cont
|