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Add linux mlslabel support 

The ZFS update to onnv_141 brought with it support for a
security label attribute called mlslabel.  This feature
depends on zones to work correctly and thus I am disabling
it under Linux.  Equivilant functionality could be added
at some point in the future.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf 2010-08-26 11:43:42 -07:00
parent be160928b7
commit d2c15e84e9
2 changed files with 16 additions and 1 deletions
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13
lib/libzfs/libzfs_dataset.c
View File

@ -904,6 +904,7 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl,
case ZFS_PROP_MLSLABEL: case ZFS_PROP_MLSLABEL:
{ {
#ifdef HAVE_MLSLABEL
/* /*
* Verify the mlslabel string and convert to * Verify the mlslabel string and convert to
* internal hex label string. * internal hex label string.
@ -953,7 +954,12 @@ badlabel:
(void) zfs_error(hdl, EZFS_BADPROP, errbuf); (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
m_label_free(new_sl); /* OK if null */ m_label_free(new_sl); /* OK if null */
goto error; goto error;
#else
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"mlslabels are unsupported"));
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
#endif /* HAVE_MLSLABEL */
} }
case ZFS_PROP_MOUNTPOINT: case ZFS_PROP_MOUNTPOINT:
@ -2041,6 +2047,7 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen,
case ZFS_PROP_MLSLABEL: case ZFS_PROP_MLSLABEL:
{ {
#ifdef HAVE_MLSLABEL
m_label_t *new_sl = NULL; m_label_t *new_sl = NULL;
char *ascii = NULL; /* human readable label */ char *ascii = NULL; /* human readable label */
@ -2074,6 +2081,10 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen,
(void) strlcpy(propbuf, ascii, proplen); (void) strlcpy(propbuf, ascii, proplen);
free(ascii); free(ascii);
#else
(void) strlcpy(propbuf,
getprop_string(zhp, prop, &source), proplen);
#endif /* HAVE_MLSLABEL */
} }
break; break;

4
module/zfs/zfs_ioctl.c
View File

@ -384,6 +384,7 @@ zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds,
static int static int
zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
{ {
#ifdef HAVE_MLSLABEL
char ds_hexsl[MAXNAMELEN]; char ds_hexsl[MAXNAMELEN];
bslabel_t ds_sl, new_sl; bslabel_t ds_sl, new_sl;
boolean_t new_default = FALSE; boolean_t new_default = FALSE;
@ -471,6 +472,9 @@ out_check:
if (needed_priv != -1) if (needed_priv != -1)
return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL));
return (0); return (0);
#else
return ENOTSUP;
#endif /* HAVE_MLSLABEL */
} }
static int static int