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-rw-r--r--grub-core/fs/minix.c758
1 files changed, 758 insertions, 0 deletions
diff --git a/grub-core/fs/minix.c b/grub-core/fs/minix.c
new file mode 100644
index 0000000..3cd18c8
--- /dev/null
+++ b/grub-core/fs/minix.c
@@ -0,0 +1,758 @@
+/* minix.c - The minix filesystem, version 1 and 2. */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2004,2005,2006,2007,2008 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/err.h>
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/disk.h>
+#include <grub/dl.h>
+#include <grub/types.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#ifdef MODE_MINIX3
+#define GRUB_MINIX_MAGIC 0x4D5A
+#elif defined(MODE_MINIX2)
+#define GRUB_MINIX_MAGIC 0x2468
+#define GRUB_MINIX_MAGIC_30 0x2478
+#else
+#define GRUB_MINIX_MAGIC 0x137F
+#define GRUB_MINIX_MAGIC_30 0x138F
+#endif
+
+#define EXT2_MAGIC 0xEF53
+
+#define GRUB_MINIX_INODE_DIR_BLOCKS 7
+#define GRUB_MINIX_LOG2_BSIZE 1
+#define GRUB_MINIX_ROOT_INODE 1
+#define GRUB_MINIX_MAX_SYMLNK_CNT 8
+#define GRUB_MINIX_SBLOCK 2
+
+#define GRUB_MINIX_IFDIR 0040000U
+#define GRUB_MINIX_IFLNK 0120000U
+
+#ifdef MODE_BIGENDIAN
+#define grub_cpu_to_minix16_compile_time grub_cpu_to_be16_compile_time
+#define grub_minix_to_cpu16 grub_be_to_cpu16
+#define grub_minix_to_cpu32 grub_be_to_cpu32
+#else
+#define grub_cpu_to_minix16_compile_time grub_cpu_to_le16_compile_time
+#define grub_minix_to_cpu16 grub_le_to_cpu16
+#define grub_minix_to_cpu32 grub_le_to_cpu32
+#endif
+
+#if defined(MODE_MINIX2) || defined(MODE_MINIX3)
+typedef grub_uint32_t grub_minix_uintn_t;
+#define grub_minix_to_cpu_n grub_minix_to_cpu32
+#else
+typedef grub_uint16_t grub_minix_uintn_t;
+#define grub_minix_to_cpu_n grub_minix_to_cpu16
+#endif
+
+#ifdef MODE_MINIX3
+typedef grub_uint32_t grub_minix_ino_t;
+#define grub_minix_to_cpu_ino grub_minix_to_cpu32
+#else
+typedef grub_uint16_t grub_minix_ino_t;
+#define grub_minix_to_cpu_ino grub_minix_to_cpu16
+#endif
+
+#define GRUB_MINIX_INODE_SIZE(data) (grub_minix_to_cpu32 (data->inode.size))
+#define GRUB_MINIX_INODE_MODE(data) (grub_minix_to_cpu16 (data->inode.mode))
+#define GRUB_MINIX_INODE_DIR_ZONES(data,blk) (grub_minix_to_cpu_n \
+ (data->inode.dir_zones[blk]))
+#define GRUB_MINIX_INODE_INDIR_ZONE(data) (grub_minix_to_cpu_n \
+ (data->inode.indir_zone))
+#define GRUB_MINIX_INODE_DINDIR_ZONE(data) (grub_minix_to_cpu_n \
+ (data->inode.double_indir_zone))
+
+
+#ifdef MODE_MINIX3
+struct grub_minix_sblock
+{
+ grub_uint32_t inode_cnt;
+ grub_uint16_t zone_cnt;
+ grub_uint16_t inode_bmap_size;
+ grub_uint16_t zone_bmap_size;
+ grub_uint16_t first_data_zone;
+ grub_uint16_t log2_zone_size;
+ grub_uint16_t pad;
+ grub_uint32_t max_file_size;
+ grub_uint32_t zones;
+ grub_uint16_t magic;
+
+ grub_uint16_t pad2;
+ grub_uint16_t block_size;
+ grub_uint8_t disk_version;
+};
+#else
+struct grub_minix_sblock
+{
+ grub_uint16_t inode_cnt;
+ grub_uint16_t zone_cnt;
+ grub_uint16_t inode_bmap_size;
+ grub_uint16_t zone_bmap_size;
+ grub_uint16_t first_data_zone;
+ grub_uint16_t log2_zone_size;
+ grub_uint32_t max_file_size;
+ grub_uint16_t magic;
+};
+#endif
+
+#if defined(MODE_MINIX3) || defined(MODE_MINIX2)
+struct grub_minix_inode
+{
+ grub_uint16_t mode;
+ grub_uint16_t nlinks;
+ grub_uint16_t uid;
+ grub_uint16_t gid;
+ grub_uint32_t size;
+ grub_uint32_t atime;
+ grub_uint32_t mtime;
+ grub_uint32_t ctime;
+ grub_uint32_t dir_zones[7];
+ grub_uint32_t indir_zone;
+ grub_uint32_t double_indir_zone;
+ grub_uint32_t triple_indir_zone;
+};
+#else
+struct grub_minix_inode
+{
+ grub_uint16_t mode;
+ grub_uint16_t uid;
+ grub_uint32_t size;
+ grub_uint32_t mtime;
+ grub_uint8_t gid;
+ grub_uint8_t nlinks;
+ grub_uint16_t dir_zones[7];
+ grub_uint16_t indir_zone;
+ grub_uint16_t double_indir_zone;
+};
+
+#endif
+
+#if defined(MODE_MINIX3)
+#define MAX_MINIX_FILENAME_SIZE 60
+#else
+#define MAX_MINIX_FILENAME_SIZE 30
+#endif
+
+/* Information about a "mounted" minix filesystem. */
+struct grub_minix_data
+{
+ struct grub_minix_sblock sblock;
+ struct grub_minix_inode inode;
+ grub_uint32_t block_per_zone;
+ grub_minix_ino_t ino;
+ int linknest;
+ grub_disk_t disk;
+ int filename_size;
+ grub_size_t block_size;
+};
+
+static grub_dl_t my_mod;
+
+static grub_err_t grub_minix_find_file (struct grub_minix_data *data,
+ const char *path);
+
+#ifdef MODE_MINIX3
+static inline grub_disk_addr_t
+grub_minix_zone2sect (struct grub_minix_data *data, grub_minix_uintn_t zone)
+{
+ return ((grub_disk_addr_t) zone) * data->block_size;
+}
+#else
+static inline grub_disk_addr_t
+grub_minix_zone2sect (struct grub_minix_data *data, grub_minix_uintn_t zone)
+{
+ int log2_zonesz = (GRUB_MINIX_LOG2_BSIZE
+ + grub_minix_to_cpu16 (data->sblock.log2_zone_size));
+ return (((grub_disk_addr_t) zone) << log2_zonesz);
+}
+#endif
+
+
+ /* Read the block pointer in ZONE, on the offset NUM. */
+static grub_minix_uintn_t
+grub_get_indir (struct grub_minix_data *data,
+ grub_minix_uintn_t zone,
+ grub_minix_uintn_t num)
+{
+ grub_minix_uintn_t indirn;
+ grub_disk_read (data->disk,
+ grub_minix_zone2sect(data, zone),
+ sizeof (grub_minix_uintn_t) * num,
+ sizeof (grub_minix_uintn_t), (char *) &indirn);
+ return grub_minix_to_cpu_n (indirn);
+}
+
+static grub_minix_uintn_t
+grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
+{
+ grub_minix_uintn_t indir;
+
+ /* Direct block. */
+ if (blk < GRUB_MINIX_INODE_DIR_BLOCKS)
+ return GRUB_MINIX_INODE_DIR_ZONES (data, blk);
+
+ /* Indirect block. */
+ blk -= GRUB_MINIX_INODE_DIR_BLOCKS;
+ if (blk < data->block_per_zone)
+ {
+ indir = grub_get_indir (data, GRUB_MINIX_INODE_INDIR_ZONE (data), blk);
+ return indir;
+ }
+
+ /* Double indirect block. */
+ blk -= data->block_per_zone;
+ if (blk < (grub_uint64_t) data->block_per_zone * (grub_uint64_t) data->block_per_zone)
+ {
+ indir = grub_get_indir (data, GRUB_MINIX_INODE_DINDIR_ZONE (data),
+ blk / data->block_per_zone);
+
+ indir = grub_get_indir (data, indir, blk % data->block_per_zone);
+
+ return indir;
+ }
+
+#if defined (MODE_MINIX3) || defined (MODE_MINIX2)
+ blk -= data->block_per_zone * data->block_per_zone;
+ if (blk < ((grub_uint64_t) data->block_per_zone * (grub_uint64_t) data->block_per_zone
+ * (grub_uint64_t) data->block_per_zone))
+ {
+ indir = grub_get_indir (data, grub_minix_to_cpu_n (data->inode.triple_indir_zone),
+ (blk / data->block_per_zone) / data->block_per_zone);
+ indir = grub_get_indir (data, indir, (blk / data->block_per_zone) % data->block_per_zone);
+ indir = grub_get_indir (data, indir, blk % data->block_per_zone);
+
+ return indir;
+ }
+#endif
+
+ /* This should never happen. */
+ grub_error (GRUB_ERR_OUT_OF_RANGE, "file bigger than maximum size");
+
+ return 0;
+}
+
+
+/* Read LEN bytes from the file described by DATA starting with byte
+ POS. Return the amount of read bytes in READ. */
+static grub_ssize_t
+grub_minix_read_file (struct grub_minix_data *data,
+ grub_disk_read_hook_t read_hook, void *read_hook_data,
+ grub_off_t pos, grub_size_t len, char *buf)
+{
+ grub_uint32_t i;
+ grub_uint32_t blockcnt;
+ grub_uint32_t posblock;
+ grub_uint32_t blockoff;
+
+ if (pos > GRUB_MINIX_INODE_SIZE (data))
+ {
+ grub_error (GRUB_ERR_OUT_OF_RANGE,
+ N_("attempt to read past the end of file"));
+ return -1;
+ }
+
+ /* Adjust len so it we can't read past the end of the file. */
+ if (len + pos > GRUB_MINIX_INODE_SIZE (data))
+ len = GRUB_MINIX_INODE_SIZE (data) - pos;
+ if (len == 0)
+ return 0;
+
+ /* Files are at most 2G/4G - 1 bytes on minixfs. Avoid 64-bit division. */
+ blockcnt = ((grub_uint32_t) ((len + pos - 1)
+ >> GRUB_DISK_SECTOR_BITS)) / data->block_size + 1;
+ posblock = (((grub_uint32_t) pos)
+ / (data->block_size << GRUB_DISK_SECTOR_BITS));
+ blockoff = (((grub_uint32_t) pos)
+ % (data->block_size << GRUB_DISK_SECTOR_BITS));
+
+ for (i = posblock; i < blockcnt; i++)
+ {
+ grub_minix_uintn_t blknr;
+ grub_uint64_t blockend = data->block_size << GRUB_DISK_SECTOR_BITS;
+ grub_off_t skipfirst = 0;
+
+ blknr = grub_minix_get_file_block (data, i);
+ if (grub_errno)
+ return -1;
+
+ /* Last block. */
+ if (i == blockcnt - 1)
+ {
+ /* len + pos < 4G (checked above), so it doesn't overflow. */
+ blockend = (((grub_uint32_t) (len + pos))
+ % (data->block_size << GRUB_DISK_SECTOR_BITS));
+
+ if (!blockend)
+ blockend = data->block_size << GRUB_DISK_SECTOR_BITS;
+ }
+
+ /* First block. */
+ if (i == posblock)
+ {
+ skipfirst = blockoff;
+ blockend -= skipfirst;
+ }
+
+ data->disk->read_hook = read_hook;
+ data->disk->read_hook_data = read_hook_data;
+ grub_disk_read (data->disk,
+ grub_minix_zone2sect(data, blknr),
+ skipfirst, blockend, buf);
+ data->disk->read_hook = 0;
+ if (grub_errno)
+ return -1;
+
+ buf += (data->block_size << GRUB_DISK_SECTOR_BITS) - skipfirst;
+ }
+
+ return len;
+}
+
+
+/* Read inode INO from the mounted filesystem described by DATA. This
+ inode is used by default now. */
+static grub_err_t
+grub_minix_read_inode (struct grub_minix_data *data, grub_minix_ino_t ino)
+{
+ struct grub_minix_sblock *sblock = &data->sblock;
+
+ /* Block in which the inode is stored. */
+ grub_disk_addr_t block;
+ data->ino = ino;
+
+ /* The first inode in minix is inode 1. */
+ ino--;
+ block = grub_minix_zone2sect (data,
+ 2 + grub_minix_to_cpu16 (sblock->inode_bmap_size)
+ + grub_minix_to_cpu16 (sblock->zone_bmap_size));
+ block += ino / (GRUB_DISK_SECTOR_SIZE / sizeof (struct grub_minix_inode));
+ int offs = (ino % (GRUB_DISK_SECTOR_SIZE
+ / sizeof (struct grub_minix_inode))
+ * sizeof (struct grub_minix_inode));
+
+ grub_disk_read (data->disk, block, offs,
+ sizeof (struct grub_minix_inode), &data->inode);
+
+ return GRUB_ERR_NONE;
+}
+
+
+/* Lookup the symlink the current inode points to. INO is the inode
+ number of the directory the symlink is relative to. */
+static grub_err_t
+grub_minix_lookup_symlink (struct grub_minix_data *data, grub_minix_ino_t ino)
+{
+ char *symlink;
+ grub_size_t sz = GRUB_MINIX_INODE_SIZE (data);
+
+ if (++data->linknest > GRUB_MINIX_MAX_SYMLNK_CNT)
+ return grub_error (GRUB_ERR_SYMLINK_LOOP, N_("too deep nesting of symlinks"));
+
+ symlink = grub_malloc (sz + 1);
+ if (!symlink)
+ return grub_errno;
+ if (grub_minix_read_file (data, 0, 0, 0, sz, symlink) < 0)
+ return grub_errno;
+
+ symlink[sz] = '\0';
+
+ /* The symlink is an absolute path, go back to the root inode. */
+ if (symlink[0] == '/')
+ ino = GRUB_MINIX_ROOT_INODE;
+
+ /* Now load in the old inode. */
+ if (grub_minix_read_inode (data, ino))
+ return grub_errno;
+
+ grub_minix_find_file (data, symlink);
+
+ return grub_errno;
+}
+
+
+/* Find the file with the pathname PATH on the filesystem described by
+ DATA. */
+static grub_err_t
+grub_minix_find_file (struct grub_minix_data *data, const char *path)
+{
+ const char *name;
+ const char *next = path;
+ unsigned int pos = 0;
+ grub_minix_ino_t dirino;
+
+ while (1)
+ {
+ name = next;
+ /* Skip the first slash. */
+ while (*name == '/')
+ name++;
+ if (!*name)
+ return GRUB_ERR_NONE;
+
+ if ((GRUB_MINIX_INODE_MODE (data)
+ & GRUB_MINIX_IFDIR) != GRUB_MINIX_IFDIR)
+ return grub_error (GRUB_ERR_BAD_FILE_TYPE, N_("not a directory"));
+
+ /* Extract the actual part from the pathname. */
+ for (next = name; *next && *next != '/'; next++);
+
+ for (pos = 0; ; )
+ {
+ grub_minix_ino_t ino;
+ char filename[MAX_MINIX_FILENAME_SIZE + 1];
+
+ if (pos >= GRUB_MINIX_INODE_SIZE (data))
+ {
+ grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"), path);
+ return grub_errno;
+ }
+
+ if (grub_minix_read_file (data, 0, 0, pos, sizeof (ino),
+ (char *) &ino) < 0)
+ return grub_errno;
+ if (grub_minix_read_file (data, 0, 0, pos + sizeof (ino),
+ data->filename_size, (char *) filename)< 0)
+ return grub_errno;
+
+ pos += sizeof (ino) + data->filename_size;
+
+ filename[data->filename_size] = '\0';
+
+ /* Check if the current direntry matches the current part of the
+ pathname. */
+ if (grub_strncmp (name, filename, next - name) == 0
+ && filename[next - name] == '\0')
+ {
+ dirino = data->ino;
+ grub_minix_read_inode (data, grub_minix_to_cpu_ino (ino));
+
+ /* Follow the symlink. */
+ if ((GRUB_MINIX_INODE_MODE (data)
+ & GRUB_MINIX_IFLNK) == GRUB_MINIX_IFLNK)
+ {
+ grub_minix_lookup_symlink (data, dirino);
+ if (grub_errno)
+ return grub_errno;
+ }
+
+ break;
+ }
+ }
+ }
+}
+
+
+/* Mount the filesystem on the disk DISK. */
+static struct grub_minix_data *
+grub_minix_mount (grub_disk_t disk)
+{
+ struct grub_minix_data *data = NULL;
+ grub_uint16_t ext2_marker;
+
+ grub_disk_read (disk, 2, 56, sizeof (ext2_marker), &ext2_marker);
+ if (grub_errno != GRUB_ERR_NONE)
+ goto fail;
+
+ /*
+ * The ext2 filesystems can sometimes be mistakenly identified as MINIX, e.g.
+ * due to the number of free ext2 inodes being written to the same location
+ * where the MINIX superblock magic is found. Avoid such situations by
+ * skipping any filesystems that have the ext2 superblock magic.
+ */
+ if (ext2_marker == grub_cpu_to_le16_compile_time (EXT2_MAGIC))
+ goto fail;
+
+ data = grub_malloc (sizeof (struct grub_minix_data));
+ if (!data)
+ return 0;
+
+ /* Read the superblock. */
+ grub_disk_read (disk, GRUB_MINIX_SBLOCK, 0,
+ sizeof (struct grub_minix_sblock),&data->sblock);
+ if (grub_errno)
+ goto fail;
+
+ if (data->sblock.magic == grub_cpu_to_minix16_compile_time (GRUB_MINIX_MAGIC))
+ {
+#if !defined(MODE_MINIX3)
+ data->filename_size = 14;
+#else
+ data->filename_size = 60;
+#endif
+ }
+#if !defined(MODE_MINIX3)
+ else if (data->sblock.magic
+ == grub_cpu_to_minix16_compile_time (GRUB_MINIX_MAGIC_30))
+ data->filename_size = 30;
+#endif
+ else
+ goto fail;
+
+ /* 20 means 1G zones. We could support up to 31 but already 1G isn't
+ supported by anything else. */
+ if (grub_minix_to_cpu16 (data->sblock.log2_zone_size) >= 20)
+ goto fail;
+
+ data->disk = disk;
+ data->linknest = 0;
+#ifdef MODE_MINIX3
+ /* These tests are endian-independent. No need to byteswap. */
+ if (data->sblock.block_size == 0xffff)
+ data->block_size = 2;
+ else
+ {
+ if ((data->sblock.block_size == grub_cpu_to_minix16_compile_time (0x200))
+ || (data->sblock.block_size == 0)
+ || (data->sblock.block_size & grub_cpu_to_minix16_compile_time (0x1ff)))
+ goto fail;
+ data->block_size = grub_minix_to_cpu16 (data->sblock.block_size)
+ >> GRUB_DISK_SECTOR_BITS;
+ }
+#else
+ data->block_size = 2;
+#endif
+
+ data->block_per_zone = (((grub_uint64_t) data->block_size << \
+ (GRUB_DISK_SECTOR_BITS + grub_minix_to_cpu16 (data->sblock.log2_zone_size)))
+ / sizeof (grub_minix_uintn_t));
+ if (!data->block_per_zone)
+ goto fail;
+
+ return data;
+
+ fail:
+ grub_free (data);
+#if defined(MODE_MINIX3)
+ grub_error (GRUB_ERR_BAD_FS, "not a minix3 filesystem");
+#elif defined(MODE_MINIX2)
+ grub_error (GRUB_ERR_BAD_FS, "not a minix2 filesystem");
+#else
+ grub_error (GRUB_ERR_BAD_FS, "not a minix filesystem");
+#endif
+ return 0;
+}
+
+static grub_err_t
+grub_minix_dir (grub_device_t device, const char *path,
+ grub_fs_dir_hook_t hook, void *hook_data)
+{
+ struct grub_minix_data *data = 0;
+ unsigned int pos = 0;
+
+ data = grub_minix_mount (device->disk);
+ if (!data)
+ return grub_errno;
+
+ grub_minix_read_inode (data, GRUB_MINIX_ROOT_INODE);
+ if (grub_errno)
+ goto fail;
+
+ grub_minix_find_file (data, path);
+ if (grub_errno)
+ goto fail;
+
+ if ((GRUB_MINIX_INODE_MODE (data) & GRUB_MINIX_IFDIR) != GRUB_MINIX_IFDIR)
+ {
+ grub_error (GRUB_ERR_BAD_FILE_TYPE, N_("not a directory"));
+ goto fail;
+ }
+
+ while (pos < GRUB_MINIX_INODE_SIZE (data))
+ {
+ grub_minix_ino_t ino;
+ char filename[MAX_MINIX_FILENAME_SIZE + 1];
+ grub_minix_ino_t dirino = data->ino;
+ struct grub_dirhook_info info;
+ grub_memset (&info, 0, sizeof (info));
+
+
+ if (grub_minix_read_file (data, 0, 0, pos, sizeof (ino),
+ (char *) &ino) < 0)
+ return grub_errno;
+
+ if (grub_minix_read_file (data, 0, 0, pos + sizeof (ino),
+ data->filename_size,
+ (char *) filename) < 0)
+ return grub_errno;
+ filename[data->filename_size] = '\0';
+ if (!ino)
+ {
+ pos += sizeof (ino) + data->filename_size;
+ continue;
+ }
+
+ grub_minix_read_inode (data, grub_minix_to_cpu_ino (ino));
+ info.dir = ((GRUB_MINIX_INODE_MODE (data)
+ & GRUB_MINIX_IFDIR) == GRUB_MINIX_IFDIR);
+ info.mtimeset = 1;
+ info.mtime = grub_minix_to_cpu32 (data->inode.mtime);
+
+ if (hook (filename, &info, hook_data) ? 1 : 0)
+ break;
+
+ /* Load the old inode back in. */
+ grub_minix_read_inode (data, dirino);
+
+ pos += sizeof (ino) + data->filename_size;
+ }
+
+ fail:
+ grub_free (data);
+ return grub_errno;
+}
+
+
+/* Open a file named NAME and initialize FILE. */
+static grub_err_t
+grub_minix_open (struct grub_file *file, const char *name)
+{
+ struct grub_minix_data *data;
+ data = grub_minix_mount (file->device->disk);
+ if (!data)
+ return grub_errno;
+
+ /* Open the inode op the root directory. */
+ grub_minix_read_inode (data, GRUB_MINIX_ROOT_INODE);
+ if (grub_errno)
+ {
+ grub_free (data);
+ return grub_errno;
+ }
+
+ if (!name || name[0] != '/')
+ {
+ grub_error (GRUB_ERR_BAD_FILENAME, N_("invalid file name `%s'"), name);
+ return grub_errno;
+ }
+
+ /* Traverse the directory tree to the node that should be
+ opened. */
+ grub_minix_find_file (data, name);
+ if (grub_errno)
+ {
+ grub_free (data);
+ return grub_errno;
+ }
+
+ file->data = data;
+ file->size = GRUB_MINIX_INODE_SIZE (data);
+
+ return GRUB_ERR_NONE;
+}
+
+
+static grub_ssize_t
+grub_minix_read (grub_file_t file, char *buf, grub_size_t len)
+{
+ struct grub_minix_data *data =
+ (struct grub_minix_data *) file->data;
+
+ return grub_minix_read_file (data, file->read_hook, file->read_hook_data,
+ file->offset, len, buf);
+}
+
+
+static grub_err_t
+grub_minix_close (grub_file_t file)
+{
+ grub_free (file->data);
+
+ return GRUB_ERR_NONE;
+}
+
+
+
+static struct grub_fs grub_minix_fs =
+ {
+#ifdef MODE_BIGENDIAN
+#if defined(MODE_MINIX3)
+ .name = "minix3_be",
+#elif defined(MODE_MINIX2)
+ .name = "minix2_be",
+#else
+ .name = "minix_be",
+#endif
+#else
+#if defined(MODE_MINIX3)
+ .name = "minix3",
+#elif defined(MODE_MINIX2)
+ .name = "minix2",
+#else
+ .name = "minix",
+#endif
+#endif
+ .fs_dir = grub_minix_dir,
+ .fs_open = grub_minix_open,
+ .fs_read = grub_minix_read,
+ .fs_close = grub_minix_close,
+#ifdef GRUB_UTIL
+ .reserved_first_sector = 1,
+ .blocklist_install = 1,
+#endif
+ .next = 0
+ };
+
+#ifdef MODE_BIGENDIAN
+#if defined(MODE_MINIX3)
+GRUB_MOD_INIT(minix3_be)
+#elif defined(MODE_MINIX2)
+GRUB_MOD_INIT(minix2_be)
+#else
+GRUB_MOD_INIT(minix_be)
+#endif
+#else
+#if defined(MODE_MINIX3)
+GRUB_MOD_INIT(minix3)
+#elif defined(MODE_MINIX2)
+GRUB_MOD_INIT(minix2)
+#else
+GRUB_MOD_INIT(minix)
+#endif
+#endif
+{
+ grub_fs_register (&grub_minix_fs);
+ my_mod = mod;
+}
+
+#ifdef MODE_BIGENDIAN
+#if defined(MODE_MINIX3)
+GRUB_MOD_FINI(minix3_be)
+#elif defined(MODE_MINIX2)
+GRUB_MOD_FINI(minix2_be)
+#else
+GRUB_MOD_FINI(minix_be)
+#endif
+#else
+#if defined(MODE_MINIX3)
+GRUB_MOD_FINI(minix3)
+#elif defined(MODE_MINIX2)
+GRUB_MOD_FINI(minix2)
+#else
+GRUB_MOD_FINI(minix)
+#endif
+#endif
+{
+ grub_fs_unregister (&grub_minix_fs);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 04:52:35 +0000