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Minix FS fixes.

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* grub-core/fs/minix.c (GRUB_MINIX_INODE_SIZE): Size is always 32-bit.
	(grub_minix_inode) [!MODE_MINIX2 && !MODE_MINIX3]: Make size 32-bit.
	Rename ctime to mtime. All users updated.
	(grub_minix_get_file_block): Fix types and double indirect computations.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-10-24 10:45:47 +02:00
parent 89481cabbd
commit e0864e7ab7
2 changed files with 25 additions and 18 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2011-10-24 Vladimir Serbinenko <phcoder@gmail.com>
Minix FS fixes.
* grub-core/fs/minix.c (GRUB_MINIX_INODE_SIZE): Size is always 32-bit.
(grub_minix_inode) [!MODE_MINIX2 && !MODE_MINIX3]: Make size 32-bit.
Rename ctime to mtime. All users updated.
(grub_minix_get_file_block): Fix types and double indirect computations.
2011-10-23 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/fs/fat.c (grub_fat_label) [MODE_EXFAT]: Set *label to 0

34
grub-core/fs/minix.c
View file

@ -63,7 +63,7 @@ typedef grub_uint16_t grub_minix_ino_t;
#define grub_minix_le_to_cpu_ino grub_le_to_cpu16
#endif
#define GRUB_MINIX_INODE_SIZE(data) (grub_minix_le_to_cpu_n (data->inode.size))
#define GRUB_MINIX_INODE_SIZE(data) (grub_le_to_cpu32 (data->inode.size))
#define GRUB_MINIX_INODE_MODE(data) (grub_le_to_cpu16 (data->inode.mode))
#define GRUB_MINIX_INODE_DIR_ZONES(data,blk) (grub_minix_le_to_cpu_n \
(data->inode.dir_zones[blk]))
@ -133,15 +133,14 @@ struct grub_minix_inode
grub_uint32_t indir_zone;
grub_uint32_t double_indir_zone;
grub_uint32_t unused;
};
#else
struct grub_minix_inode
{
grub_uint16_t mode;
grub_uint16_t uid;
grub_uint16_t size;
grub_uint32_t ctime;
grub_uint32_t size;
grub_uint32_t mtime;
grub_uint8_t gid;
grub_uint8_t nlinks;
grub_uint16_t dir_zones[7];
@ -168,15 +167,19 @@ static grub_dl_t my_mod;
static grub_err_t grub_minix_find_file (struct grub_minix_data *data,
const char *path);
static int
static grub_minix_uintn_t
grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
{
int indir;
grub_minix_uintn_t indir;
const grub_uint32_t block_per_zone = (GRUB_MINIX_ZONESZ
/ GRUB_MINIX_INODE_BLKSZ (data));
auto int grub_get_indir (int, int);
auto grub_minix_uintn_t grub_get_indir (grub_minix_uintn_t,
grub_minix_uintn_t);
/* Read the block pointer in ZONE, on the offset NUM. */
int grub_get_indir (int zone, int num)
grub_minix_uintn_t grub_get_indir (grub_minix_uintn_t zone,
grub_minix_uintn_t num)
{
grub_minix_uintn_t indirn;
grub_disk_read (data->disk,
@ -192,21 +195,20 @@ grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
/* Indirect block. */
blk -= GRUB_MINIX_INODE_DIR_BLOCKS;
if (blk < GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data))
if (blk < block_per_zone)
{
indir = grub_get_indir (GRUB_MINIX_INODE_INDIR_ZONE (data), blk);
return indir;
}
/* Double indirect block. */
blk -= GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data);
if (blk < (GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data))
* (GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data)))
blk -= block_per_zone;
if (blk < block_per_zone * block_per_zone)
{
indir = grub_get_indir (GRUB_MINIX_INODE_DINDIR_ZONE (data),
blk / GRUB_MINIX_ZONESZ);
blk / block_per_zone);
indir = grub_get_indir (indir, blk % GRUB_MINIX_ZONESZ);
indir = grub_get_indir (indir, blk % block_per_zone);
return indir;
}
@ -536,11 +538,7 @@ grub_minix_dir (grub_device_t device, const char *path,
info.dir = ((GRUB_MINIX_INODE_MODE (data)
& GRUB_MINIX_IFDIR) == GRUB_MINIX_IFDIR);
info.mtimeset = 1;
#ifndef MODE_MINIX2
info.mtime = grub_le_to_cpu32 (data->inode.ctime);
#else
info.mtime = grub_le_to_cpu32 (data->inode.mtime);
#endif
if (hook (filename, &info) ? 1 : 0)
break;