Differential D21795 Diff 62866 head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c

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head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c

Show First 20 Lines • Show All 218 Lines • ▼ Show 20 Lines

typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);		typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
typedef int zfs_ioc_func_t(const char , nvlist_t , nvlist_t *);		typedef int zfs_ioc_func_t(const char , nvlist_t , nvlist_t *);
typedef int zfs_secpolicy_func_t(zfs_cmd_t , nvlist_t , cred_t *);		typedef int zfs_secpolicy_func_t(zfs_cmd_t , nvlist_t , cred_t *);

typedef enum {		typedef enum {
NO_NAME,		NO_NAME,
POOL_NAME,		POOL_NAME,
DATASET_NAME		DATASET_NAME,
		ENTITY_NAME
} zfs_ioc_namecheck_t;		} zfs_ioc_namecheck_t;

typedef enum {		typedef enum {
POOL_CHECK_NONE = 1 << 0,		POOL_CHECK_NONE = 1 << 0,
POOL_CHECK_SUSPENDED = 1 << 1,		POOL_CHECK_SUSPENDED = 1 << 1,
POOL_CHECK_READONLY = 1 << 2,		POOL_CHECK_READONLY = 1 << 2,
} zfs_ioc_poolcheck_t;		} zfs_ioc_poolcheck_t;

▲ Show 20 Lines • Show All 681 Lines • ▼ Show 20 Lines	zfs_secpolicy_rename_perms(const char from, const char to, cred_t *cr)
return (error);		return (error);
}		}

/* ARGSUSED */		/* ARGSUSED */
static int		static int
zfs_secpolicy_rename(zfs_cmd_t zc, nvlist_t innvl, cred_t *cr)		zfs_secpolicy_rename(zfs_cmd_t zc, nvlist_t innvl, cred_t *cr)
{		{
char *at = NULL;		char *at = NULL;
		char *pound;
int error;		int error;

		if ((pound = strchr(zc->zc_name, '#')) != NULL) {
		*pound = '\0';
		error = zfs_secpolicy_write_perms(zc->zc_name,
		ZFS_DELEG_PERM_RENAME, cr);
		if (error == 0) {
		error = zfs_secpolicy_write_perms(zc->zc_name,
		ZFS_DELEG_PERM_BOOKMARK, cr);
		}
		*pound = '#';
		return (error);
		}

if ((zc->zc_cookie & 1) != 0) {		if ((zc->zc_cookie & 1) != 0) {
/*		/*
* This is recursive rename, so the starting snapshot might		* This is recursive rename, so the starting snapshot might
* not exist. Check file system or volume permission instead.		* not exist. Check file system or volume permission instead.
*/		*/
at = strchr(zc->zc_name, '@');		at = strchr(zc->zc_name, '@');
if (at == NULL)		if (at == NULL)
return (EINVAL);		return (EINVAL);
▲ Show 20 Lines • Show All 3,080 Lines • ▼ Show 20 Lines	recursive_unmount(const char fsname, void arg)
(void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname);		(void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname);
zfs_unmount_snap(fullname);		zfs_unmount_snap(fullname);

return (0);		return (0);
}		}

/*		/*
* inputs:		* inputs:
* zc_name old name of dataset		* zc_name old name of dataset or bookmark
* zc_value new name of dataset		* zc_value new name of dataset or bookmark
* zc_cookie recursive flag (only valid for snapshots)		* zc_cookie recursive flag (only valid for snapshots)
*		*
* outputs: none		* outputs: none
*/		*/
static int		static int
zfs_ioc_rename(zfs_cmd_t *zc)		zfs_ioc_rename(zfs_cmd_t *zc)
{		{
objset_t *os;		objset_t *os;
dmu_objset_type_t ost;		dmu_objset_type_t ost;
boolean_t recursive = zc->zc_cookie & 1;		boolean_t recursive = zc->zc_cookie & 1;
char *at;		char pos, pos2;
boolean_t allow_mounted = B_TRUE;		boolean_t allow_mounted = B_TRUE;
int err;		int err;

#ifdef __FreeBSD__		#ifdef __FreeBSD__
allow_mounted = (zc->zc_cookie & 2) != 0;		allow_mounted = (zc->zc_cookie & 2) != 0;
#endif		#endif

/* "zfs rename" from and to ...%recv datasets should both fail */
zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';		zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';		zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';

		pos = strchr(zc->zc_name, '#');
		if (pos != NULL) {
		/* Bookmarks must be in same fs. */
		pos2 = strchr(zc->zc_value, '#');
		if (pos2 == NULL)
		return (SET_ERROR(EINVAL));

		/* Recursive flag is not supported yet. */
		if (recursive)
		return (SET_ERROR(ENOTSUP));

		*pos = '\0';
		*pos2 = '\0';
		if (strcmp(zc->zc_name, zc->zc_value) == 0) {
		err = dsl_bookmark_rename(zc->zc_name,
		pos + 1, pos2 + 1);
		} else {
		err = SET_ERROR(EXDEV);
		}
		*pos = '#';
		*pos2 = '#';
		return (err);
		}

		/* "zfs rename" from and to ...%recv datasets should both fail */
if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 \|\|		if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 \|\|
dataset_namecheck(zc->zc_value, NULL, NULL) != 0 \|\|		dataset_namecheck(zc->zc_value, NULL, NULL) != 0 \|\|
strchr(zc->zc_name, '%') \|\| strchr(zc->zc_value, '%'))		strchr(zc->zc_name, '%') \|\| strchr(zc->zc_value, '%'))
return (SET_ERROR(EINVAL));		return (SET_ERROR(EINVAL));

err = dmu_objset_hold(zc->zc_name, FTAG, &os);		err = dmu_objset_hold(zc->zc_name, FTAG, &os);
if (err != 0)		if (err != 0)
return (err);		return (err);
ost = dmu_objset_type(os);		ost = dmu_objset_type(os);
dmu_objset_rele(os, FTAG);		dmu_objset_rele(os, FTAG);

at = strchr(zc->zc_name, '@');		pos = strchr(zc->zc_name, '@');
if (at != NULL) {		if (pos != NULL) {
/* snaps must be in same fs */		/* Snapshots must be in same fs. */
int error;		pos2 = strchr(zc->zc_value, '@');
		if (pos2 == NULL)
if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1))		return (SET_ERROR(EINVAL));
return (SET_ERROR(EXDEV));		*pos = '\0';
*at = '\0';		*pos2 = '\0';
		if (strcmp(zc->zc_name, zc->zc_value) != 0) {
		err = SET_ERROR(EXDEV);
		} else {
if (ost == DMU_OST_ZFS && !allow_mounted) {		if (ost == DMU_OST_ZFS && !allow_mounted) {
error = dmu_objset_find(zc->zc_name,		err = dmu_objset_find(zc->zc_name,
recursive_unmount, at + 1,		recursive_unmount, pos + 1,
recursive ? DS_FIND_CHILDREN : 0);		recursive ? DS_FIND_CHILDREN : 0);
if (error != 0) {
*at = '@';
return (error);
}		}
		if (err == 0) {
		err = dsl_dataset_rename_snapshot(zc->zc_name,
		pos + 1, pos2 + 1, recursive);
}		}
error = dsl_dataset_rename_snapshot(zc->zc_name,		}
at + 1, strchr(zc->zc_value, '@') + 1, recursive);		*pos = '@';
*at = '@';		*pos2 = '@';
		return (err);
return (error);
} else {		} else {
#ifdef illumos		#ifdef illumos
if (ost == DMU_OST_ZVOL)		if (ost == DMU_OST_ZVOL)
(void) zvol_remove_minor(zc->zc_name);		(void) zvol_remove_minor(zc->zc_name);
#endif		#endif
return (dsl_dir_rename(zc->zc_name, zc->zc_value));		return (dsl_dir_rename(zc->zc_name, zc->zc_value));
}		}
}		}
▲ Show 20 Lines • Show All 2,260 Lines • ▼ Show 20 Lines	zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY,
zfs_ioc_userspace_many, zfs_secpolicy_userspace_many);		zfs_ioc_userspace_many, zfs_secpolicy_userspace_many);
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND,		zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND,
zfs_ioc_send, zfs_secpolicy_send);		zfs_ioc_send, zfs_secpolicy_send);

zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop,		zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop,
zfs_secpolicy_none);		zfs_secpolicy_none);
zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy,		zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy,
zfs_secpolicy_destroy);		zfs_secpolicy_destroy);
zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename,
zfs_secpolicy_rename);
zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv,		zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv,
zfs_secpolicy_recv);		zfs_secpolicy_recv);
zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote,		zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote,
zfs_secpolicy_promote);		zfs_secpolicy_promote);
zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP,		zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP,
zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop);		zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop);
zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl,		zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl,
zfs_secpolicy_set_fsacl);		zfs_secpolicy_set_fsacl);

		/*
		* Not using zfs_ioctl_register_dataset_modify as DATASET_NAME check
		* won't allow a bookmark name.
		*/
		zfs_ioctl_register_legacy(ZFS_IOC_RENAME, zfs_ioc_rename,
		zfs_secpolicy_rename, ENTITY_NAME, B_TRUE,
		POOL_CHECK_SUSPENDED \| POOL_CHECK_READONLY);

zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share,		zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share,
zfs_secpolicy_share, POOL_CHECK_NONE);		zfs_secpolicy_share, POOL_CHECK_NONE);
zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl,		zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl,
zfs_secpolicy_smb_acl, POOL_CHECK_NONE);		zfs_secpolicy_smb_acl, POOL_CHECK_NONE);
zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE,		zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE,
zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,		zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,
POOL_CHECK_SUSPENDED \| POOL_CHECK_READONLY);		POOL_CHECK_SUSPENDED \| POOL_CHECK_READONLY);
zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT,		zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT,
Show All 13 Lines

int		int
pool_status_check(const char *name, zfs_ioc_namecheck_t type,		pool_status_check(const char *name, zfs_ioc_namecheck_t type,
zfs_ioc_poolcheck_t check)		zfs_ioc_poolcheck_t check)
{		{
spa_t *spa;		spa_t *spa;
int error;		int error;

ASSERT(type == POOL_NAME \|\| type == DATASET_NAME);		ASSERT(type == POOL_NAME \|\| type == DATASET_NAME \|\|
		type == ENTITY_NAME);

if (check & POOL_CHECK_NONE)		if (check & POOL_CHECK_NONE)
return (0);		return (0);

error = spa_open(name, &spa, FTAG);		error = spa_open(name, &spa, FTAG);
if (error == 0) {		if (error == 0) {
if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))		if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))
error = SET_ERROR(EAGAIN);		error = SET_ERROR(EAGAIN);
▲ Show 20 Lines • Show All 314 Lines • ▼ Show 20 Lines	case POOL_NAME:
break;		break;

case DATASET_NAME:		case DATASET_NAME:
if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)		if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
error = SET_ERROR(EINVAL);		error = SET_ERROR(EINVAL);
else		else
error = pool_status_check(zc->zc_name,		error = pool_status_check(zc->zc_name,
vec->zvec_namecheck, vec->zvec_pool_check);		vec->zvec_namecheck, vec->zvec_pool_check);
		break;

		case ENTITY_NAME:
		if (entity_namecheck(zc->zc_name, NULL, NULL) != 0) {
		error = SET_ERROR(EINVAL);
		} else {
		error = pool_status_check(zc->zc_name,
		vec->zvec_namecheck, vec->zvec_pool_check);
		}
break;		break;

case NO_NAME:		case NO_NAME:
break;		break;
}		}

if (error == 0)		if (error == 0)
error = vec->zvec_secpolicy(zc, innvl, cr);		error = vec->zvec_secpolicy(zc, innvl, cr);
▲ Show 20 Lines • Show All 451 Lines • Show Last 20 Lines