vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Attempts at ZFS options

Browse source
This commit is contained in:
Vladimir Serbinenko 2013-11-03 16:40:32 +01:00
parent a1dcc2cb98
commit 0ee5cdfe9f
4 changed files with 131 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

61
grub-core/fs/zfs/zfsinfo.c
View file

@ -419,14 +419,72 @@ grub_cmd_zfs_bootfs (grub_command_t cmd __attribute__ ((unused)), int argc,
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_zfs_property (grub_command_t cmd __attribute__ ((unused)), int argc,
char **args)
{
grub_device_t device = 0;
char *device_name;
const char *file_name;
char *fs_name = NULL;
const char *name, *ptr;
grub_uint64_t property;
grub_err_t err;
static grub_command_t cmd_info, cmd_bootfs;
if (argc < 2)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
name = args[0];
device_name = grub_file_get_device_name (name);
if (grub_errno)
return grub_errno;
/* Get the file part of NAME. */
file_name = (name[0] == '(') ? grub_strchr (name, ')') : NULL;
if (file_name)
file_name++;
else
file_name = name;
device = grub_device_open (device_name);
grub_free (device_name);
if (! device)
return grub_errno;
ptr = grub_strchr (file_name, '@');
if (ptr)
{
fs_name = grub_strndup (file_name, ptr - file_name);
if (!fs_name)
{
grub_device_close (device);
return grub_errno;
}
}
err = grub_zfs_get_property (device, fs_name ? : file_name, args[1],
&property);
grub_free (fs_name);
grub_device_close (device);
if (err)
return err;
grub_printf ("0x%llx\n", (unsigned long long) property);
return GRUB_ERR_NONE;
}
static grub_command_t cmd_info, cmd_bootfs, cmd_property;
GRUB_MOD_INIT (zfsinfo)
{
cmd_info = grub_register_command ("zfsinfo", grub_cmd_zfsinfo,
N_("DEVICE"),
N_("Print ZFS info about DEVICE."));
cmd_property = grub_register_command ("zfsproperty", grub_cmd_zfs_property,
N_("SUBVOLUME PROPNAME"),
N_("Print ZFS property value."));
cmd_bootfs = grub_register_command ("zfs-bootfs", grub_cmd_zfs_bootfs,
N_("FILESYSTEM [VARIABLE]"),
N_("Print ZFS-BOOTFSOBJ or store it into VARIABLE"));
@ -436,4 +494,5 @@ GRUB_MOD_FINI (zfsinfo)
{
grub_unregister_command (cmd_info);
grub_unregister_command (cmd_bootfs);
grub_unregister_command (cmd_property);
}