WebSVN – Kolibri OS – Diff – /kernel/trunk/fs/ntfs.inc



;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
;;  Distributed under terms of the GNU General Public License.  ;;
;;                                                              ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

 

$Revision: 6468 $
 
; NTFS external functions
;   in:
; ebx -> parameter structure of sysfunc 70
; ebp -> NTFS structure
; esi -> path string
;   out:
; eax, ebx = return values for sysfunc 70
iglobal

.unk:
        pop     eax
        ret

 
ntfs_find_lfn:
; in: esi -> path string
;   out:
; [ebp+NTFS.cur_iRecord] = target fileRecord
; eax -> target index in the node
; [ebp+NTFS.LastRead] = target node location

        popad
        stc
.ret2:
        pop     esi
.ret:
        ret

 
.slash:
        pop     eax
        pop     edi

        mov     eax, [esi]
        mov     [ebp+NTFS.cur_iRecord], eax
        mov     [esp+1Ch], esi
        mov     [esp+4], edi
        popad
 
        cmp     byte [esi], 0
 
 
        jz      .ret2
        inc     esi
 
 
        pop     eax
        jmp     .doit2

 
;----------------------------------------------------------------

        movi    eax, ERROR_ACCESS_DENIED
        ret

 
@@:
        call    ntfs_lock
        call    ntfs_find_lfn
        jnc     .found
        call    ntfs_unlock
        or      ebx, -1
        movi    eax, ERROR_FILE_NOT_FOUND

ntfs_ReadFolder:
        call    ntfs_lock
        mov     [ebp+NTFS.cur_iRecord], 5   ; root directory
        cmp     byte [esi], 0
        jz      @f
        call    ntfs_find_lfn
        jc      ntfsNotFound
@@:
        mov     [ebp+NTFS.cur_attr], 0x10   ; $STANDARD_INFORMATION
        and     [ebp+NTFS.cur_offs], 0
        mov     [ebp+NTFS.cur_size], 1

ntfs_GetFileInfo:
        call    ntfs_lock
        mov     edi, [ebx+16]
        cmp     byte [esi], 0
        jz      .volume
        call    ntfs_find_lfn
        jnc     .found
        test    eax, eax
        jz      ntfsFail
        jmp     ntfsNotFound

        movi    eax, ERROR_ACCESS_DENIED
        ret

 
@@: ; 1. Search file
        call    ntfs_lock
        call    ntfs_find_lfn
        jc      .notFound
; found, rewrite
        cmp     [ebp+NTFS.cur_iRecord], 16
        jc      ntfsDenied

        call    writeRecord
        mov     ebx, [ebp+NTFS.frs_buffer]
        mov     edx, [ebp+NTFS.rootLastRead]
        call    writeRecord
        mov     esi, [esp+4]
        call    ntfs_find_lfn.doit2
        test    eax, eax
        jz      .errorPop3
        mov     edi, [ebp+NTFS.cur_index_buf]
        mov     edx, [esp]
.indexRecord:

        xor     ebx, ebx
        movi    eax, ERROR_ACCESS_DENIED
        ret
@@:
        call    ntfs_lock
        call    ntfs_find_lfn
        jc      ntfsNotFound
        cmp     [ebp+NTFS.cur_iRecord], 16
        jc      ntfsDenied
        test    dword [eax+fileFlags], 10000001h
        jnz     ntfsDenied

        movi    eax, ERROR_ACCESS_DENIED
        ret

 
@@:
        call    ntfs_lock
        call    ntfs_find_lfn
        jc      ntfsNotFound
        cmp     [ebp+NTFS.cur_iRecord], 16
        jc      ntfsDenied
        test    byte [eax+fileFlags], 1

        call    fs_write64_sys
.backToIndex:
        mov     eax, [ebp+NTFS.newRecord]
        mov     [ebp+NTFS.cur_iRecord], eax
        mov     esi, [ebp+NTFS.indexPointer]
        call    ntfs_find_lfn.doit2
        jc      ntfsFail
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
        mov     byte [ebx], 0
        mov     ebx, [ebp+NTFS.LastRead]
        mov     [ebp+NTFS.nodeLastRead], ebx

        xor     ebx, ebx
        movi    eax, ERROR_ACCESS_DENIED
        ret
@@:
        call    ntfs_lock
        call    ntfs_find_lfn
        jc      ntfsNotFound
        cmp     [ebp+NTFS.cur_iRecord], 16
        jc      ntfsDenied
        test    dword [eax+fileFlags], 10000001h
        jnz     ntfsDenied

        jnz     @f
        movi    eax, ERROR_UNSUPPORTED_FS
        ret
@@:
        call    ntfs_lock
        call    ntfs_find_lfn
        jnc     @f
        test    eax, eax
        jz      ntfsFail
        jmp     ntfsNotFound

Rev 6462	Rev 6468
Line 3...	Line 3...
3	;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
4	;; Distributed under terms of the GNU General Public License. ;;	4	;; Distributed under terms of the GNU General Public License. ;;
5	;; ;;	5	;; ;;
6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Line 7...	Line 7...
7		7
Line 8...	Line 8...
8	$Revision: 6462 $	8	$Revision: 6468 $
9		9
10	; NTFS external functions	10	; NTFS external functions
11	; in:	11	; in:
12	; ebx -> parameter structure of sysfunc 70	12	; ebx -> parameter structure of sysfunc 70
13	; ebp -> NTFS structure	13	; ebp -> NTFS structure
14	; [esi]+[[esp+4]] = name	14	; esi -> path string
15	; out:	15	; out:
16	; eax, ebx = return values for sysfunc 70	16	; eax, ebx = return values for sysfunc 70
17	iglobal	17	iglobal
Line 1172...	Line 1172...
1172	.unk:	1172	.unk:
1173	pop eax	1173	pop eax
1174	ret	1174	ret
Line 1175...	Line 1175...
1175		1175
1176	ntfs_find_lfn:	1176	ntfs_find_lfn:
1177	; in: [esi]+[esp+4] = name	1177	; in: esi -> path string
1178	; out:	1178	; out:
1179	; [ebp+NTFS.cur_iRecord] = target fileRecord	1179	; [ebp+NTFS.cur_iRecord] = target fileRecord
1180	; eax -> target index in the node	1180	; eax -> target index in the node
1181	; [ebp+NTFS.LastRead] = target node location	1181	; [ebp+NTFS.LastRead] = target node location
Line 1278...	Line 1278...
1278	popad	1278	popad
1279	stc	1279	stc
1280	.ret2:	1280	.ret2:
1281	pop esi	1281	pop esi
1282	.ret:	1282	.ret:
1283	ret 4	1283	ret
Line 1284...	Line 1284...
1284		1284
1285	.slash:	1285	.slash:
1286	pop eax	1286	pop eax
1287	pop edi	1287	pop edi
Line 1335...	Line 1335...
1335	mov eax, [esi]	1335	mov eax, [esi]
1336	mov [ebp+NTFS.cur_iRecord], eax	1336	mov [ebp+NTFS.cur_iRecord], eax
1337	mov [esp+1Ch], esi	1337	mov [esp+1Ch], esi
1338	mov [esp+4], edi	1338	mov [esp+4], edi
1339	popad	1339	popad
1340	inc esi	-
1341	cmp byte [esi-1], 0	1340	cmp byte [esi], 0
1342	jnz @f	-
1343	cmp dword [esp+8], 0	-
1344	jz .ret2	1341	jz .ret2
1345	mov esi, [esp+8]	1342	inc esi
1346	mov dword [esp+8], 0	-
1347	@@:	-
1348	pop eax	1343	pop eax
1349	jmp .doit2	1344	jmp .doit2
Line 1350...	Line 1345...
1350		1345
1351	;----------------------------------------------------------------	1346	;----------------------------------------------------------------
Line 1356...	Line 1351...
1356	movi eax, ERROR_ACCESS_DENIED	1351	movi eax, ERROR_ACCESS_DENIED
1357	ret	1352	ret
Line 1358...	Line 1353...
1358		1353
1359	@@:	1354	@@:
1360	call ntfs_lock	1355	call ntfs_lock
1361	stdcall ntfs_find_lfn, [esp+4]	1356	call ntfs_find_lfn
1362	jnc .found	1357	jnc .found
1363	call ntfs_unlock	1358	call ntfs_unlock
1364	or ebx, -1	1359	or ebx, -1
1365	movi eax, ERROR_FILE_NOT_FOUND	1360	movi eax, ERROR_FILE_NOT_FOUND
Line 1491...	Line 1486...
1491	ntfs_ReadFolder:	1486	ntfs_ReadFolder:
1492	call ntfs_lock	1487	call ntfs_lock
1493	mov [ebp+NTFS.cur_iRecord], 5 ; root directory	1488	mov [ebp+NTFS.cur_iRecord], 5 ; root directory
1494	cmp byte [esi], 0	1489	cmp byte [esi], 0
1495	jz @f	1490	jz @f
1496	stdcall ntfs_find_lfn, [esp+4]	1491	call ntfs_find_lfn
1497	jc ntfsNotFound	1492	jc ntfsNotFound
1498	@@:	1493	@@:
1499	mov [ebp+NTFS.cur_attr], 0x10 ; $STANDARD_INFORMATION	1494	mov [ebp+NTFS.cur_attr], 0x10 ; $STANDARD_INFORMATION
1500	and [ebp+NTFS.cur_offs], 0	1495	and [ebp+NTFS.cur_offs], 0
1501	mov [ebp+NTFS.cur_size], 1	1496	mov [ebp+NTFS.cur_size], 1
Line 1818...	Line 1813...
1818	ntfs_GetFileInfo:	1813	ntfs_GetFileInfo:
1819	call ntfs_lock	1814	call ntfs_lock
1820	mov edi, [ebx+16]	1815	mov edi, [ebx+16]
1821	cmp byte [esi], 0	1816	cmp byte [esi], 0
1822	jz .volume	1817	jz .volume
1823	stdcall ntfs_find_lfn, [esp+4]	1818	call ntfs_find_lfn
1824	jnc .found	1819	jnc .found
1825	test eax, eax	1820	test eax, eax
1826	jz ntfsFail	1821	jz ntfsFail
1827	jmp ntfsNotFound	1822	jmp ntfsNotFound
Line 1883...	Line 1878...
1883	movi eax, ERROR_ACCESS_DENIED	1878	movi eax, ERROR_ACCESS_DENIED
1884	ret	1879	ret
Line 1885...	Line 1880...
1885		1880
1886	@@: ; 1. Search file	1881	@@: ; 1. Search file
1887	call ntfs_lock	1882	call ntfs_lock
1888	stdcall ntfs_find_lfn, [esp+4]	1883	call ntfs_find_lfn
1889	jc .notFound	1884	jc .notFound
1890	; found, rewrite	1885	; found, rewrite
1891	cmp [ebp+NTFS.cur_iRecord], 16	1886	cmp [ebp+NTFS.cur_iRecord], 16
1892	jc ntfsDenied	1887	jc ntfsDenied
Line 2170...	Line 2165...
2170	call writeRecord	2165	call writeRecord
2171	mov ebx, [ebp+NTFS.frs_buffer]	2166	mov ebx, [ebp+NTFS.frs_buffer]
2172	mov edx, [ebp+NTFS.rootLastRead]	2167	mov edx, [ebp+NTFS.rootLastRead]
2173	call writeRecord	2168	call writeRecord
2174	mov esi, [esp+4]	2169	mov esi, [esp+4]
2175	stdcall ntfs_find_lfn.doit2, 0	2170	call ntfs_find_lfn.doit2
2176	test eax, eax	2171	test eax, eax
2177	jz .errorPop3	2172	jz .errorPop3
2178	mov edi, [ebp+NTFS.cur_index_buf]	2173	mov edi, [ebp+NTFS.cur_index_buf]
2179	mov edx, [esp]	2174	mov edx, [esp]
2180	.indexRecord:	2175	.indexRecord:
Line 3508...	Line 3503...
3508	xor ebx, ebx	3503	xor ebx, ebx
3509	movi eax, ERROR_ACCESS_DENIED	3504	movi eax, ERROR_ACCESS_DENIED
3510	ret	3505	ret
3511	@@:	3506	@@:
3512	call ntfs_lock	3507	call ntfs_lock
3513	stdcall ntfs_find_lfn, [esp+4]	3508	call ntfs_find_lfn
3514	jc ntfsNotFound	3509	jc ntfsNotFound
3515	cmp [ebp+NTFS.cur_iRecord], 16	3510	cmp [ebp+NTFS.cur_iRecord], 16
3516	jc ntfsDenied	3511	jc ntfsDenied
3517	test dword [eax+fileFlags], 10000001h	3512	test dword [eax+fileFlags], 10000001h
3518	jnz ntfsDenied	3513	jnz ntfsDenied
Line 3688...	Line 3683...
3688	movi eax, ERROR_ACCESS_DENIED	3683	movi eax, ERROR_ACCESS_DENIED
3689	ret	3684	ret
Line 3690...	Line 3685...
3690		3685
3691	@@:	3686	@@:
3692	call ntfs_lock	3687	call ntfs_lock
3693	stdcall ntfs_find_lfn, [esp+4]	3688	call ntfs_find_lfn
3694	jc ntfsNotFound	3689	jc ntfsNotFound
3695	cmp [ebp+NTFS.cur_iRecord], 16	3690	cmp [ebp+NTFS.cur_iRecord], 16
3696	jc ntfsDenied	3691	jc ntfsDenied
3697	test byte [eax+fileFlags], 1	3692	test byte [eax+fileFlags], 1
Line 3781...	Line 3776...
3781	call fs_write64_sys	3776	call fs_write64_sys
3782	.backToIndex:	3777	.backToIndex:
3783	mov eax, [ebp+NTFS.newRecord]	3778	mov eax, [ebp+NTFS.newRecord]
3784	mov [ebp+NTFS.cur_iRecord], eax	3779	mov [ebp+NTFS.cur_iRecord], eax
3785	mov esi, [ebp+NTFS.indexPointer]	3780	mov esi, [ebp+NTFS.indexPointer]
3786	stdcall ntfs_find_lfn.doit2, 0	3781	call ntfs_find_lfn.doit2
3787	jc ntfsFail	3782	jc ntfsFail
3788	mov ebx, [ebp+NTFS.secondIndexBuffer]	3783	mov ebx, [ebp+NTFS.secondIndexBuffer]
3789	mov byte [ebx], 0	3784	mov byte [ebx], 0
3790	mov ebx, [ebp+NTFS.LastRead]	3785	mov ebx, [ebp+NTFS.LastRead]
3791	mov [ebp+NTFS.nodeLastRead], ebx	3786	mov [ebp+NTFS.nodeLastRead], ebx
Line 4006...	Line 4001...
4006	xor ebx, ebx	4001	xor ebx, ebx
4007	movi eax, ERROR_ACCESS_DENIED	4002	movi eax, ERROR_ACCESS_DENIED
4008	ret	4003	ret
4009	@@:	4004	@@:
4010	call ntfs_lock	4005	call ntfs_lock
4011	stdcall ntfs_find_lfn, [esp+4]	4006	call ntfs_find_lfn
4012	jc ntfsNotFound	4007	jc ntfsNotFound
4013	cmp [ebp+NTFS.cur_iRecord], 16	4008	cmp [ebp+NTFS.cur_iRecord], 16
4014	jc ntfsDenied	4009	jc ntfsDenied
4015	test dword [eax+fileFlags], 10000001h	4010	test dword [eax+fileFlags], 10000001h
4016	jnz ntfsDenied	4011	jnz ntfsDenied
Line 4140...	Line 4135...
4140	jnz @f	4135	jnz @f
4141	movi eax, ERROR_UNSUPPORTED_FS	4136	movi eax, ERROR_UNSUPPORTED_FS
4142	ret	4137	ret
4143	@@:	4138	@@:
4144	call ntfs_lock	4139	call ntfs_lock
4145	stdcall ntfs_find_lfn, [esp+4]	4140	call ntfs_find_lfn
4146	jnc @f	4141	jnc @f
4147	test eax, eax	4142	test eax, eax
4148	jz ntfsFail	4143	jz ntfsFail
4149	jmp ntfsNotFound	4144	jmp ntfsNotFound

Subversion Repositories Kolibri OS

(root)/kernel/trunk/fs/ntfs.inc – Rev 6462 → 6468