[fireball] 35178: - Remove atari fs support. - Rename global variables to more meaningful names. - Add fs_isdirty function to determine is a filesystem is marked as dirty.
8 Aug
2008
8 Aug
'08
9:13 a.m.
Author: fireball
Date: Fri Aug 8 04:13:21 2008
New Revision: 35178
URL: http://svn.reactos.org/svn/reactos?rev=35178&view=rev
Log:
- Remove atari fs support.
- Rename global variables to more meaningful names.
- Add fs_isdirty function to determine is a filesystem is marked as dirty.
Modified:
trunk/reactos/lib/fslib/vfatlib/check/boot.c
trunk/reactos/lib/fslib/vfatlib/check/check.c
trunk/reactos/lib/fslib/vfatlib/check/dosfsck.h
trunk/reactos/lib/fslib/vfatlib/check/fat.c
trunk/reactos/lib/fslib/vfatlib/check/io.c
trunk/reactos/lib/fslib/vfatlib/check/io.h
trunk/reactos/lib/fslib/vfatlib/check/lfn.c
Modified: trunk/reactos/lib/fslib/vfatlib/check/boot.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/bo…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/boot.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/boot.c [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -57,20 +57,14 @@
static void dump_boot(DOS_FS *fs,struct boot_sector *b,unsigned lss)
{
unsigned short sectors;
+ char id[9];
VfatPrint("Boot sector contents:\n");
- if (!atari_format) {
- char id[9];
+
strncpy(id,(char*)b->system_id,8);
id[8] = 0;
VfatPrint("System ID \"%s\"\n",id);
- }
- else {
- /* On Atari, a 24 bit serial number is stored at offset 8 of the boot
- * sector */
- VfatPrint("Serial number 0x%x\n",
- b->system_id[5] | (b->system_id[6]<<8) |
(b->system_id[7]<<16));
- }
+
VfatPrint("Media byte 0x%02x
(%s)\n",b->media,get_media_descr(b->media));
VfatPrint("%10d bytes per logical
sector\n",GET_UNALIGNED_W(b->sector_size));
VfatPrint("%10d bytes per cluster\n",fs->cluster_size);
@@ -99,12 +93,7 @@
(__u64)fs->clusters*fs->cluster_size);
VfatPrint("%u sectors/track, %u heads\n",CF_LE_W(b->secs_track),
CF_LE_W(b->heads));
- VfatPrint("%10u hidden sectors\n",
- atari_format ?
- /* On Atari, the hidden field is only 16 bit wide and unused */
- (((unsigned char *)&b->hidden)[0] |
- ((unsigned char *)&b->hidden)[1] << 8) :
- CF_LE_L(b->hidden));
+ VfatPrint("%10u hidden sectors\n", CF_LE_L(b->hidden));
sectors = GET_UNALIGNED_W( b->sectors );
VfatPrint("%10u sectors total\n", sectors ? sectors :
CF_LE_L(b->total_sect));
}
@@ -320,27 +309,12 @@
read_fsinfo(fs,&b,logical_sector_size);
}
- else if (!atari_format) {
+ else {
/* On real MS-DOS, a 16 bit FAT is used whenever there would be too
- * much clusers otherwise. */
+ * much clusters otherwise. */
fs->fat_bits = (fs->clusters > MSDOS_FAT12) ? 16 : 12;
}
- else {
- /* On Atari, things are more difficult: GEMDOS always uses 12bit FATs
- * on floppies, and always 16 bit on harddisks. */
- fs->fat_bits = 16; /* assume 16 bit FAT for now */
- /* If more clusters than fat entries in 16-bit fat, we assume
- * it's a real MSDOS FS with 12-bit fat. */
- if (fs->clusters+2 > fat_length*logical_sector_size*8/16 ||
- /* if it's a floppy disk --> 12bit fat */
- device_no == 2 ||
- /* if it's a ramdisk or loopback device and has one of the usual
- * floppy sizes -> 12bit FAT */
- ((device_no == 1 || device_no == 7) &&
- (total_sectors == 720 || total_sectors == 1440 ||
- total_sectors == 2880)))
- fs->fat_bits = 12;
- }
+
/* On FAT32, the high 4 bits of a FAT entry are reserved */
fs->eff_fat_bits = (fs->fat_bits == 32) ? 28 : fs->fat_bits;
fs->fat_size = fat_length*logical_sector_size;
@@ -356,7 +330,7 @@
die("Logical sector size (%d bytes) is not a multiple of the physical "
"sector size.",logical_sector_size);
/* ++roman: On Atari, these two fields are often left uninitialized */
- if (!atari_format && (!b.secs_track || !b.heads))
+ if ((!b.secs_track || !b.heads))
die("Invalid disk format in boot sector.");
if (FsCheckFlags & FSCHECK_VERBOSE) dump_boot(fs,&b,logical_sector_size);
}
Modified: trunk/reactos/lib/fslib/vfatlib/check/check.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/ch…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/check.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/check.c [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -153,7 +153,7 @@
}
vffree(root);
}
- ++n_files;
+ ++FsCheckTotalFiles;
return offset;
}
@@ -221,7 +221,7 @@
static int bad_name(unsigned char *name)
{
int i, spc, suspicious = 0;
- char *bad_chars = atari_format ? "*?\\/:" :
"*?<>|\"\\/:";
+ char *bad_chars = "*?<>|\"\\/:";
/* Do not complain about (and auto-correct) the extended attribute files
* of OS/2. */
@@ -260,10 +260,6 @@
return 1;
}
- /* Under GEMDOS, chars >= 128 are never allowed. */
- if (atari_format && suspicious)
- return 1;
-
/* Only complain about too much suspicious chars in interactive mode,
* never correct them automatically. The chars are all basically ok, so we
* shouldn't auto-correct such names. */
@@ -281,7 +277,7 @@
for (cluster = FSTART(file,fs); cluster > 0 && cluster <
fs->clusters+2; cluster = next_cluster(fs,cluster))
set_owner(fs,cluster,NULL);
- --n_files;
+ --FsCheckTotalFiles;
}
@@ -780,7 +776,7 @@
lfn_add_slot(&de,offset);
return;
}
- new = qalloc(&mem_queue,sizeof(DOS_FILE));
+ new = qalloc(&FsCheckMemQueue,sizeof(DOS_FILE));
new->lfn = lfn_get(&de);
new->offset = offset;
memcpy(&new->dir_ent,&de,sizeof(de));
@@ -798,7 +794,7 @@
if (offset &&
strncmp((char*)de.name,MSDOS_DOT,MSDOS_NAME) != 0 &&
strncmp((char*)de.name,MSDOS_DOTDOT,MSDOS_NAME) != 0)
- ++n_files;
+ ++FsCheckTotalFiles;
test_file(fs,new,FsCheckFlags & FSCHECK_TEST_READ);
}
Modified: trunk/reactos/lib/fslib/vfatlib/check/dosfsck.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/do…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/dosfsck.h [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/dosfsck.h [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -165,18 +165,17 @@
#define FSCHECK_IMMEDIATE_WRITE 0x10
extern ULONG FsCheckFlags;
-extern int atari_format;
-extern unsigned n_files;
-extern void *mem_queue;
+extern ULONG FsCheckTotalFiles;
+extern void *FsCheckMemQueue;
/* value to use as end-of-file marker */
-#define FAT_EOF(fs) ((atari_format ? 0xfff : 0xff8) | FAT_EXTD(fs))
+#define FAT_EOF(fs) (0xff8 | FAT_EXTD(fs))
#define FAT_IS_EOF(fs,v) ((unsigned long)(v) >= (0xff8|FAT_EXTD(fs)))
/* value to mark bad clusters */
#define FAT_BAD(fs) (0xff7 | FAT_EXTD(fs))
/* range of values used for bad clusters */
-#define FAT_MIN_BAD(fs) ((atari_format ? 0xff0 : 0xff7) | FAT_EXTD(fs))
-#define FAT_MAX_BAD(fs) ((atari_format ? 0xff7 : 0xff7) | FAT_EXTD(fs))
+#define FAT_MIN_BAD(fs) (0xff7 | FAT_EXTD(fs))
+#define FAT_MAX_BAD(fs) (0xff7 | FAT_EXTD(fs))
#define FAT_IS_BAD(fs,v) ((v) >= FAT_MIN_BAD(fs) && (v) <=
FAT_MAX_BAD(fs))
/* return -16 as a number with fs->fat_bits bits */
Modified: trunk/reactos/lib/fslib/vfatlib/check/fat.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/fa…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/fat.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/fat.c [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -97,7 +97,7 @@
//exit(1);
}
}
- fs->fat = qalloc(&mem_queue,sizeof(FAT_ENTRY)*(fs->clusters+2));
+ fs->fat = qalloc(&FsCheckMemQueue,sizeof(FAT_ENTRY)*(fs->clusters+2));
for (i = 2; i < fs->clusters+2; i++) get_fat(&fs->fat[i],use,i,fs);
for (i = 2; i < fs->clusters+2; i++)
if (fs->fat[i].value >= fs->clusters+2 &&
Modified: trunk/reactos/lib/fslib/vfatlib/check/io.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/io…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/io.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/io.c [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -16,6 +16,8 @@
#define NDEBUG
#include <debug.h>
+
+#define FSCTL_IS_VOLUME_DIRTY CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 30,
METHOD_BUFFERED, FILE_ANY_ACCESS)
typedef struct _change {
void *data;
@@ -74,6 +76,63 @@
changes = last = NULL;
did_change = 0;
+}
+
+BOOLEAN fs_isdirty(PUNICODE_STRING DriveRoot)
+{
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ ULONG DirtyMask = 0;
+ WCHAR TempRootBuf[128];
+ UNICODE_STRING TempRoot;
+ HANDLE FileSystem;
+ IO_STATUS_BLOCK IoSb;
+ NTSTATUS Status;
+
+ /* Add backslash to the end, so FS will be opened */
+ TempRoot.Length = 0;
+ TempRoot.MaximumLength = sizeof(TempRootBuf);
+ TempRoot.Buffer = TempRootBuf;
+ RtlCopyUnicodeString(&TempRoot, DriveRoot);
+ if (TempRoot.Length == (TempRoot.MaximumLength-1)) return FALSE;
+ wcscat(TempRoot.Buffer, L"\\");
+ TempRoot.Length += sizeof(WCHAR);
+
+ InitializeObjectAttributes(&ObjectAttributes,
+ &TempRoot,
+ 0,
+ NULL,
+ NULL);
+
+ Status = NtOpenFile(&FileSystem,
+ FILE_GENERIC_READ,
+ &ObjectAttributes,
+ &IoSb,
+ 0,
+ 0);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("NtOpenFile() failed with status 0x%.08x\n", Status);
+ return FALSE;
+ }
+
+ /* Check if volume is dirty */
+ Status = NtFsControlFile(FileSystem,
+ NULL, NULL, NULL, &IoSb,
+ FSCTL_IS_VOLUME_DIRTY,
+ NULL, 0, &DirtyMask, sizeof(DirtyMask));
+
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("NtFsControlFile() failed with Status 0x%08x\n", Status);
+ /* Close FS handle */
+ NtClose(FileSystem);
+ return FALSE;
+ }
+
+ /* Close FS handle */
+ NtClose(FileSystem);
+
+ return (DirtyMask & 1);
}
Modified: trunk/reactos/lib/fslib/vfatlib/check/io.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/io…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/io.h [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/io.h [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -20,6 +20,10 @@
/* Opens the file system PATH. If RW is zero, the file system is opened
read-only, otherwise, it is opened read-write. */
+
+BOOLEAN fs_isdirty(PUNICODE_STRING DriveRoot);
+
+/* Checks if filesystem is dirty */
void fs_read(loff_t pos,int size,void *data);
Modified: trunk/reactos/lib/fslib/vfatlib/check/lfn.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fslib/vfatlib/check/lf…
==============================================================================
--- trunk/reactos/lib/fslib/vfatlib/check/lfn.c [iso-8859-1] (original)
+++ trunk/reactos/lib/fslib/vfatlib/check/lfn.c [iso-8859-1] Fri Aug 8 04:13:21 2008
@@ -81,7 +81,7 @@
else
len += 4;
}
- cp = out = use_q ? qalloc( &mem_queue, len+1 ) : vfalloc( len+1 );
+ cp = out = use_q ? qalloc( &FsCheckMemQueue, len+1 ) : vfalloc( len+1 );
for( up = uni; (up-uni)/2 < maxlen && (up[0] || up[1]); up += 2 ) {
if (UNICODE_CONVERTABLE(up[0],up[1]))
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