static grub_err_t
grub_ext2_uuid (grub_device_t device, char **uuid)
{
struct grub_ext2_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_ext2_mount (disk);
if (data)
{
*uuid = grub_xasprintf ("%04x%04x-%04x-%04x-%04x-%04x%04x%04x",
grub_be_to_cpu16 (data->sblock.uuid[0]),
grub_be_to_cpu16 (data->sblock.uuid[1]),
grub_be_to_cpu16 (data->sblock.uuid[2]),
grub_be_to_cpu16 (data->sblock.uuid[3]),
grub_be_to_cpu16 (data->sblock.uuid[4]),
grub_be_to_cpu16 (data->sblock.uuid[5]),
grub_be_to_cpu16 (data->sblock.uuid[6]),
grub_be_to_cpu16 (data->sblock.uuid[7]));
}
else
*uuid = NULL;
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
static grub_err_t
grub_ext2_dir (grub_device_t device, const char *path,
int (*hook) (const char *filename,
const struct grub_dirhook_info *info))
{
struct grub_ext2_data *data = 0;
struct grub_fshelp_node *fdiro = 0;
auto int NESTED_FUNC_ATTR iterate (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node);
int NESTED_FUNC_ATTR iterate (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node)
{
struct grub_dirhook_info info;
grub_memset (&info, 0, sizeof (info));
if (! node->inode_read)
{
grub_ext2_read_inode (data, node->ino, &node->inode);
if (!grub_errno)
node->inode_read = 1;
grub_errno = GRUB_ERR_NONE;
}
if (node->inode_read)
{
info.mtimeset = 1;
info.mtime = grub_le_to_cpu32 (node->inode.mtime);
}
info.dir = ((filetype & GRUB_FSHELP_TYPE_MASK) == GRUB_FSHELP_DIR);
grub_free (node);
return hook (filename, &info);
}
grub_dl_ref (my_mod);
data = grub_ext2_mount (device->disk);
if (! data)
goto fail;
grub_fshelp_find_file (path, &data->diropen, &fdiro, grub_ext2_iterate_dir,
grub_ext2_read_symlink, GRUB_FSHELP_DIR);
if (grub_errno)
goto fail;
grub_ext2_iterate_dir (fdiro, iterate);
fail:
if (fdiro != &data->diropen)
grub_free (fdiro);
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
/* Open a file named NAME and initialize FILE. */
static grub_err_t
grub_ext2_open (struct grub_file *file, const char *name)
{
struct grub_ext2_data *data;
struct grub_fshelp_node *fdiro = 0;
grub_err_t err;
grub_dl_ref (my_mod);
data = grub_ext2_mount (file->device->disk);
if (! data)
{
err = grub_errno;
goto fail;
}
err = grub_fshelp_find_file (name, &data->diropen, &fdiro,
grub_ext2_iterate_dir,
grub_ext2_read_symlink, GRUB_FSHELP_REG);
if (err)
goto fail;
if (! fdiro->inode_read)
{
err = grub_ext2_read_inode (data, fdiro->ino, &fdiro->inode);
if (err)
goto fail;
}
grub_memcpy (data->inode, &fdiro->inode, sizeof (struct grub_ext2_inode));
grub_free (fdiro);
file->size = grub_le_to_cpu32 (data->inode->size);
file->data = data;
file->offset = 0;
return 0;
fail:
if (fdiro != &data->diropen)
grub_free (fdiro);
grub_free (data);
grub_dl_unref (my_mod);
return err;
}
static grub_err_t
grub_ext2_label (grub_device_t device, char **label)
{
struct grub_ext2_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_ext2_mount (disk);
if (data)
*label = grub_strndup (data->sblock.volume_name, 14);
else
*label = NULL;
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
/* Get mtime. */
static grub_err_t
grub_ext2_mtime (grub_device_t device, grub_int32_t *tm)
{
struct grub_ext2_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_ext2_mount (disk);
if (!data)
*tm = 0;
else
*tm = grub_le_to_cpu32 (data->sblock.utime);
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
static grub_err_t
grub_ext2_dir (grub_device_t device, const char *path,
int (*hook) (const char *filename,
const struct grub_dirhook_info *info,
void *closure),
void *closure)
{
struct grub_ext2_data *data = 0;
struct grub_fshelp_node *fdiro = 0;
struct grub_ext2_dir_closure c;
grub_dl_ref (my_mod);
data = grub_ext2_mount (device->disk);
if (! data)
goto fail;
grub_fshelp_find_file (path, &data->diropen, &fdiro, grub_ext2_iterate_dir,
0, grub_ext2_read_symlink, GRUB_FSHELP_DIR);
if (grub_errno)
goto fail;
c.hook = hook;
c.closure = closure;
c.data = data;
grub_ext2_iterate_dir (fdiro, iterate, &c);
fail:
if (fdiro != &data->diropen)
grub_free (fdiro);
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
