Changeset 375ab5e in mainline for uspace/srv/fs/fat/fat_dentry.h

Timestamp:

2011-08-24T20:10:43Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

eb660787

Parents:

7fadb65 (diff), 842a2d2 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge from lp:~romanenko-oleg/helenos/fat.

File:

• uspace/srv/fs/fat/fat_dentry.h (modified) (5 diffs)

uspace/srv/fs/fat/fat_dentry.h

@@ -1 +1 @@
 /*
  * Copyright (c) 2008 Jakub Jermar
+ * Copyright (c) 2011 Oleg Romanenko
  * All rights reserved.
  *
@@ -37 +38 @@
 #include <bool.h>
 
+#define IS_D_CHAR(ch) (isalnum(ch) || ch == '_')
+#define FAT_STOP_CHARS L"*?/\\\n\t|'"
+
 #define FAT_NAME_LEN            8
 #define FAT_EXT_LEN             3
@@ -44 +48 @@
 #define FAT_EXT_PAD             "   "
 
-#define FAT_ATTR_RDONLY         (1 << 0)
-#define FAT_ATTR_VOLLABEL       (1 << 3)
-#define FAT_ATTR_SUBDIR         (1 << 4)
-
+#define FAT_ATTR_RDONLY   0x01
+#define FAT_ATTR_HIDDEN   0x02
+#define FAT_ATTR_SYSTEM   0x04
+#define FAT_ATTR_VOLLABEL 0x08
+#define FAT_ATTR_SUBDIR   0x10
+#define FAT_ATTR_ARCHIVE  0x20
+#define FAT_ATTR_LFN \
+    (FAT_ATTR_RDONLY | FAT_ATTR_HIDDEN | FAT_ATTR_SYSTEM | FAT_ATTR_VOLLABEL)
+    
 #define FAT_LCASE_LOWER_NAME    0x08
 #define FAT_LCASE_LOWER_EXT     0x10
 
-#define FAT_PAD                 ' ' 
+#define FAT_PAD                 ' '
+#define FAT_LFN_PAD     0xffff
+#define FAT_SFN_CHAR '_'
 
 #define FAT_DENTRY_UNUSED       0x00
@@ -57 +68 @@
 #define FAT_DENTRY_DOT          0x2e
 #define FAT_DENTRY_ERASED       0xe5
+#define FAT_LFN_LAST            0x40
+#define FAT_LFN_ERASED          0x80
+
+#define FAT_LFN_ORDER(d) (d->lfn.order)
+#define FAT_IS_LFN(d) \
+    ((FAT_LFN_ORDER(d) & FAT_LFN_LAST) == FAT_LFN_LAST)
+#define FAT_LFN_COUNT(d) \
+    (FAT_LFN_ORDER(d) ^ FAT_LFN_LAST)
+#define FAT_LFN_PART1(d) (d->lfn.part1)
+#define FAT_LFN_PART2(d) (d->lfn.part2)
+#define FAT_LFN_PART3(d) (d->lfn.part3)
+#define FAT_LFN_ATTR(d) (d->lfn.attr)
+#define FAT_LFN_CHKSUM(d) (d->lfn.check_sum)
+
+#define FAT_LFN_NAME_SIZE   260
+#define FAT_LFN_MAX_COUNT   20
+#define FAT_LFN_PART1_SIZE  5
+#define FAT_LFN_PART2_SIZE  6
+#define FAT_LFN_PART3_SIZE  2
+#define FAT_LFN_ENTRY_SIZE \
+    (FAT_LFN_PART1_SIZE + FAT_LFN_PART2_SIZE + FAT_LFN_PART3_SIZE)
 
 typedef enum {
@@ -62 +94 @@
         FAT_DENTRY_LAST,
         FAT_DENTRY_FREE,
-        FAT_DENTRY_VALID
+        FAT_DENTRY_VALID,
+        FAT_DENTRY_LFN
 } fat_dentry_clsf_t;
 
 typedef struct {
-        uint8_t         name[8];
-        uint8_t         ext[3];
-        uint8_t         attr;
-        uint8_t         lcase;
-        uint8_t         ctime_fine;
-        uint16_t        ctime;
-        uint16_t        cdate;
-        uint16_t        adate;
         union {
-                uint16_t        eaidx;          /* FAT12/FAT16 */
-                uint16_t        firstc_hi;      /* FAT32 */
-        } __attribute__ ((packed));
-        uint16_t        mtime;
-        uint16_t        mdate;
-        union {
-                uint16_t        firstc;         /* FAT12/FAT16 */
-                uint16_t        firstc_lo;      /* FAT32 */
-        } __attribute__ ((packed));
-        uint32_t        size;
+                struct {
+                        uint8_t         name[8];
+                        uint8_t         ext[3];
+                        uint8_t         attr;
+                        uint8_t         lcase;
+                        uint8_t         ctime_fine;
+                        uint16_t        ctime;
+                        uint16_t        cdate;
+                        uint16_t        adate;
+                        union {
+                                uint16_t        eaidx;          /* FAT12/FAT16 */
+                                uint16_t        firstc_hi;      /* FAT32 */
+                        } __attribute__ ((packed));
+                        uint16_t        mtime;
+                        uint16_t        mdate;
+                        union {
+                                uint16_t        firstc;         /* FAT12/FAT16 */
+                                uint16_t        firstc_lo;      /* FAT32 */
+                        } __attribute__ ((packed));
+                        uint32_t        size;
+                } __attribute__ ((packed));
+                struct {
+                        uint8_t         order;
+                        uint16_t        part1[FAT_LFN_PART1_SIZE];
+                        uint8_t         attr;
+                        uint8_t         type;
+                        uint8_t         check_sum;
+                        uint16_t        part2[FAT_LFN_PART2_SIZE];
+                        uint16_t        firstc_lo; /* MUST be 0 */
+                        uint16_t        part3[FAT_LFN_PART3_SIZE];
+                } __attribute__ ((packed)) lfn;
+        };
 } __attribute__ ((packed)) fat_dentry_t;
 
+
 extern int fat_dentry_namecmp(char *, const char *);
-extern bool fat_dentry_name_verify(const char *);
 extern void fat_dentry_name_get(const fat_dentry_t *, char *);
 extern void fat_dentry_name_set(fat_dentry_t *, const char *);
 extern fat_dentry_clsf_t fat_classify_dentry(const fat_dentry_t *);
+extern uint8_t fat_dentry_chksum(uint8_t *);
+
+extern size_t fat_lfn_str_nlength(const uint16_t *, size_t);
+extern size_t fat_lfn_size(const fat_dentry_t *);
+extern size_t fat_lfn_get_entry(const fat_dentry_t *, uint16_t *, size_t *);
+extern size_t fat_lfn_set_entry(const uint16_t *, size_t *, size_t, fat_dentry_t *);
+
+extern void str_to_ascii(char *dst, const char *src, size_t count, uint8_t pad);
+extern size_t utf16_length(const uint16_t *wstr);
+
+extern bool fat_valid_name(const char *name);
+extern bool fat_valid_short_name(const char *name);
+
 
 #endif