8133679ff0
When multihost is enabled, and a pool is suspended, return EINVAL in response to "zpool clear <pool>". The pool may have been imported on another host while I/O was suspended. Reviewed-by: loli10K <ezomori.nozomu@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Olaf Faaland <faaland1@llnl.gov> Closes #6933 Closes #8460
7324 lines
183 KiB
C
7324 lines
183 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Portions Copyright 2011 Martin Matuska
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* Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
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* Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
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* Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved.
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* Copyright 2016 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2014, Joyent, Inc. All rights reserved.
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* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
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* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
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* Copyright (c) 2013 Steven Hartland. All rights reserved.
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* Copyright (c) 2014 Integros [integros.com]
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* Copyright 2016 Toomas Soome <tsoome@me.com>
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* Copyright (c) 2016 Actifio, Inc. All rights reserved.
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* Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
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* Copyright (c) 2017 Datto Inc. All rights reserved.
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* Copyright 2017 RackTop Systems.
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* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
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*/
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/*
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* ZFS ioctls.
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*
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* This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
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* pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
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*
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* There are two ways that we handle ioctls: the legacy way where almost
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* all of the logic is in the ioctl callback, and the new way where most
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* of the marshalling is handled in the common entry point, zfsdev_ioctl().
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*
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* Non-legacy ioctls should be registered by calling
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* zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
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* from userland by lzc_ioctl().
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*
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* The registration arguments are as follows:
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*
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* const char *name
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* The name of the ioctl. This is used for history logging. If the
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* ioctl returns successfully (the callback returns 0), and allow_log
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* is true, then a history log entry will be recorded with the input &
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* output nvlists. The log entry can be printed with "zpool history -i".
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*
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* zfs_ioc_t ioc
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* The ioctl request number, which userland will pass to ioctl(2).
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* We want newer versions of libzfs and libzfs_core to run against
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* existing zfs kernel modules (i.e. a deferred reboot after an update).
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* Therefore the ioctl numbers cannot change from release to release.
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*
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* zfs_secpolicy_func_t *secpolicy
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* This function will be called before the zfs_ioc_func_t, to
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* determine if this operation is permitted. It should return EPERM
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* on failure, and 0 on success. Checks include determining if the
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* dataset is visible in this zone, and if the user has either all
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* zfs privileges in the zone (SYS_MOUNT), or has been granted permission
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* to do this operation on this dataset with "zfs allow".
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*
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* zfs_ioc_namecheck_t namecheck
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* This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
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* name, a dataset name, or nothing. If the name is not well-formed,
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* the ioctl will fail and the callback will not be called.
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* Therefore, the callback can assume that the name is well-formed
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* (e.g. is null-terminated, doesn't have more than one '@' character,
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* doesn't have invalid characters).
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*
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* zfs_ioc_poolcheck_t pool_check
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* This specifies requirements on the pool state. If the pool does
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* not meet them (is suspended or is readonly), the ioctl will fail
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* and the callback will not be called. If any checks are specified
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* (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
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* Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
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* POOL_CHECK_READONLY).
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*
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* zfs_ioc_key_t *nvl_keys
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* The list of expected/allowable innvl input keys. This list is used
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* to validate the nvlist input to the ioctl.
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*
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* boolean_t smush_outnvlist
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* If smush_outnvlist is true, then the output is presumed to be a
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* list of errors, and it will be "smushed" down to fit into the
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* caller's buffer, by removing some entries and replacing them with a
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* single "N_MORE_ERRORS" entry indicating how many were removed. See
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* nvlist_smush() for details. If smush_outnvlist is false, and the
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* outnvlist does not fit into the userland-provided buffer, then the
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* ioctl will fail with ENOMEM.
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*
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* zfs_ioc_func_t *func
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* The callback function that will perform the operation.
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*
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* The callback should return 0 on success, or an error number on
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* failure. If the function fails, the userland ioctl will return -1,
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* and errno will be set to the callback's return value. The callback
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* will be called with the following arguments:
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*
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* const char *name
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* The name of the pool or dataset to operate on, from
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* zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
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* expected type (pool, dataset, or none).
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*
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* nvlist_t *innvl
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* The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
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* NULL if no input nvlist was provided. Changes to this nvlist are
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* ignored. If the input nvlist could not be deserialized, the
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* ioctl will fail and the callback will not be called.
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*
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* nvlist_t *outnvl
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* The output nvlist, initially empty. The callback can fill it in,
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* and it will be returned to userland by serializing it into
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* zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
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* fails (e.g. because the caller didn't supply a large enough
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* buffer), then the overall ioctl will fail. See the
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* 'smush_nvlist' argument above for additional behaviors.
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*
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* There are two typical uses of the output nvlist:
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* - To return state, e.g. property values. In this case,
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* smush_outnvlist should be false. If the buffer was not large
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* enough, the caller will reallocate a larger buffer and try
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* the ioctl again.
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*
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* - To return multiple errors from an ioctl which makes on-disk
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* changes. In this case, smush_outnvlist should be true.
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* Ioctls which make on-disk modifications should generally not
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* use the outnvl if they succeed, because the caller can not
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* distinguish between the operation failing, and
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* deserialization failing.
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*
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* IOCTL Interface Errors
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*
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* The following ioctl input errors can be returned:
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* ZFS_ERR_IOC_CMD_UNAVAIL the ioctl number is not supported by kernel
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* ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
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* ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
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* ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/errno.h>
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#include <sys/uio.h>
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#include <sys/file.h>
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#include <sys/kmem.h>
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#include <sys/cmn_err.h>
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#include <sys/stat.h>
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#include <sys/zfs_ioctl.h>
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#include <sys/zfs_vfsops.h>
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#include <sys/zfs_znode.h>
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#include <sys/zap.h>
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#include <sys/spa.h>
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#include <sys/spa_impl.h>
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#include <sys/vdev.h>
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#include <sys/vdev_impl.h>
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#include <sys/dmu.h>
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#include <sys/dsl_dir.h>
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#include <sys/dsl_dataset.h>
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#include <sys/dsl_prop.h>
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#include <sys/dsl_deleg.h>
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#include <sys/dmu_objset.h>
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#include <sys/dmu_impl.h>
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#include <sys/dmu_tx.h>
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#include <sys/sunddi.h>
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#include <sys/policy.h>
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#include <sys/zone.h>
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#include <sys/nvpair.h>
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#include <sys/pathname.h>
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#include <sys/sdt.h>
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#include <sys/fs/zfs.h>
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#include <sys/zfs_ctldir.h>
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#include <sys/zfs_dir.h>
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#include <sys/zfs_onexit.h>
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#include <sys/zvol.h>
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#include <sys/dsl_scan.h>
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#include <sys/fm/util.h>
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#include <sys/dsl_crypt.h>
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#include <sys/dmu_recv.h>
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#include <sys/dmu_send.h>
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#include <sys/dsl_destroy.h>
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#include <sys/dsl_bookmark.h>
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#include <sys/dsl_userhold.h>
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#include <sys/zfeature.h>
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#include <sys/zcp.h>
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#include <sys/zio_checksum.h>
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#include <sys/vdev_removal.h>
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#include <sys/zfs_sysfs.h>
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#include <sys/vdev_impl.h>
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#include <sys/vdev_initialize.h>
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#include <linux/miscdevice.h>
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#include <linux/slab.h>
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#include "zfs_namecheck.h"
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#include "zfs_prop.h"
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#include "zfs_deleg.h"
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#include "zfs_comutil.h"
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#include <sys/lua/lua.h>
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#include <sys/lua/lauxlib.h>
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/*
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* Limit maximum nvlist size. We don't want users passing in insane values
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* for zc->zc_nvlist_src_size, since we will need to allocate that much memory.
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*/
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#define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE
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kmutex_t zfsdev_state_lock;
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zfsdev_state_t *zfsdev_state_list;
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extern void zfs_init(void);
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extern void zfs_fini(void);
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uint_t zfs_fsyncer_key;
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extern uint_t rrw_tsd_key;
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static uint_t zfs_allow_log_key;
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typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
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typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *);
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typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *);
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/*
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* IOC Keys are used to document and validate user->kernel interface inputs.
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* See zfs_keys_recv_new for an example declaration. Any key name that is not
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* listed will be rejected as input.
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*
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* The keyname 'optional' is always allowed, and must be an nvlist if present.
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* Arguments which older kernels can safely ignore can be placed under the
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* "optional" key.
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*
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* When adding new keys to an existing ioc for new functionality, consider:
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* - adding an entry into zfs_sysfs.c zfs_features[] list
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* - updating the libzfs_input_check.c test utility
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*
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* Note: in the ZK_WILDCARDLIST case, the name serves as documentation
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* for the expected name (bookmark, snapshot, property, etc) but there
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* is no validation in the preflight zfs_check_input_nvpairs() check.
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*/
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typedef enum {
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ZK_OPTIONAL = 1 << 0, /* pair is optional */
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ZK_WILDCARDLIST = 1 << 1, /* one or more unspecified key names */
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} ioc_key_flag_t;
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/* DATA_TYPE_ANY is used when zkey_type can vary. */
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#define DATA_TYPE_ANY DATA_TYPE_UNKNOWN
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typedef struct zfs_ioc_key {
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const char *zkey_name;
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data_type_t zkey_type;
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ioc_key_flag_t zkey_flags;
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} zfs_ioc_key_t;
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typedef enum {
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NO_NAME,
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POOL_NAME,
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DATASET_NAME
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} zfs_ioc_namecheck_t;
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typedef enum {
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POOL_CHECK_NONE = 1 << 0,
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POOL_CHECK_SUSPENDED = 1 << 1,
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POOL_CHECK_READONLY = 1 << 2,
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} zfs_ioc_poolcheck_t;
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typedef struct zfs_ioc_vec {
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zfs_ioc_legacy_func_t *zvec_legacy_func;
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zfs_ioc_func_t *zvec_func;
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zfs_secpolicy_func_t *zvec_secpolicy;
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zfs_ioc_namecheck_t zvec_namecheck;
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boolean_t zvec_allow_log;
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zfs_ioc_poolcheck_t zvec_pool_check;
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boolean_t zvec_smush_outnvlist;
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const char *zvec_name;
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const zfs_ioc_key_t *zvec_nvl_keys;
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size_t zvec_nvl_key_count;
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} zfs_ioc_vec_t;
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/* This array is indexed by zfs_userquota_prop_t */
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static const char *userquota_perms[] = {
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ZFS_DELEG_PERM_USERUSED,
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ZFS_DELEG_PERM_USERQUOTA,
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ZFS_DELEG_PERM_GROUPUSED,
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ZFS_DELEG_PERM_GROUPQUOTA,
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ZFS_DELEG_PERM_USEROBJUSED,
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ZFS_DELEG_PERM_USEROBJQUOTA,
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ZFS_DELEG_PERM_GROUPOBJUSED,
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ZFS_DELEG_PERM_GROUPOBJQUOTA,
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ZFS_DELEG_PERM_PROJECTUSED,
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ZFS_DELEG_PERM_PROJECTQUOTA,
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ZFS_DELEG_PERM_PROJECTOBJUSED,
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ZFS_DELEG_PERM_PROJECTOBJQUOTA,
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};
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static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
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static int zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc);
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static int zfs_check_settable(const char *name, nvpair_t *property,
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cred_t *cr);
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static int zfs_check_clearable(char *dataset, nvlist_t *props,
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nvlist_t **errors);
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static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
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boolean_t *);
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int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *);
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static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp);
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static void
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history_str_free(char *buf)
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{
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kmem_free(buf, HIS_MAX_RECORD_LEN);
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}
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static char *
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history_str_get(zfs_cmd_t *zc)
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{
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char *buf;
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if (zc->zc_history == 0)
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return (NULL);
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buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP);
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if (copyinstr((void *)(uintptr_t)zc->zc_history,
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buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
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history_str_free(buf);
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return (NULL);
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}
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buf[HIS_MAX_RECORD_LEN -1] = '\0';
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return (buf);
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}
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|
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/*
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* Check to see if the named dataset is currently defined as bootable
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*/
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static boolean_t
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zfs_is_bootfs(const char *name)
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{
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objset_t *os;
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if (dmu_objset_hold(name, FTAG, &os) == 0) {
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boolean_t ret;
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ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os)));
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dmu_objset_rele(os, FTAG);
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return (ret);
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}
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return (B_FALSE);
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}
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|
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/*
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* Return non-zero if the spa version is less than requested version.
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*/
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static int
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zfs_earlier_version(const char *name, int version)
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{
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spa_t *spa;
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if (spa_open(name, &spa, FTAG) == 0) {
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if (spa_version(spa) < version) {
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spa_close(spa, FTAG);
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return (1);
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}
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|
spa_close(spa, FTAG);
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}
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return (0);
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}
|
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|
|
/*
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* Return TRUE if the ZPL version is less than requested version.
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|
*/
|
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static boolean_t
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zpl_earlier_version(const char *name, int version)
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{
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objset_t *os;
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boolean_t rc = B_TRUE;
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if (dmu_objset_hold(name, FTAG, &os) == 0) {
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uint64_t zplversion;
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if (dmu_objset_type(os) != DMU_OST_ZFS) {
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dmu_objset_rele(os, FTAG);
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return (B_TRUE);
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}
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/* XXX reading from non-owned objset */
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if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
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rc = zplversion < version;
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dmu_objset_rele(os, FTAG);
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}
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return (rc);
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}
|
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|
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static void
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zfs_log_history(zfs_cmd_t *zc)
|
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{
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spa_t *spa;
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char *buf;
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if ((buf = history_str_get(zc)) == NULL)
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return;
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if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
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if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
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(void) spa_history_log(spa, buf);
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spa_close(spa, FTAG);
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}
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history_str_free(buf);
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}
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|
|
/*
|
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* Policy for top-level read operations (list pools). Requires no privileges,
|
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* and can be used in the local zone, as there is no associated dataset.
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*/
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/* ARGSUSED */
|
|
static int
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zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
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{
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return (0);
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}
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|
|
/*
|
|
* Policy for dataset read operations (list children, get statistics). Requires
|
|
* no privileges, but must be visible in the local zone.
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|
*/
|
|
/* ARGSUSED */
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|
static int
|
|
zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
if (INGLOBALZONE(curproc) ||
|
|
zone_dataset_visible(zc->zc_name, NULL))
|
|
return (0);
|
|
|
|
return (SET_ERROR(ENOENT));
|
|
}
|
|
|
|
static int
|
|
zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr)
|
|
{
|
|
int writable = 1;
|
|
|
|
/*
|
|
* The dataset must be visible by this zone -- check this first
|
|
* so they don't see EPERM on something they shouldn't know about.
|
|
*/
|
|
if (!INGLOBALZONE(curproc) &&
|
|
!zone_dataset_visible(dataset, &writable))
|
|
return (SET_ERROR(ENOENT));
|
|
|
|
if (INGLOBALZONE(curproc)) {
|
|
/*
|
|
* If the fs is zoned, only root can access it from the
|
|
* global zone.
|
|
*/
|
|
if (secpolicy_zfs(cr) && zoned)
|
|
return (SET_ERROR(EPERM));
|
|
} else {
|
|
/*
|
|
* If we are in a local zone, the 'zoned' property must be set.
|
|
*/
|
|
if (!zoned)
|
|
return (SET_ERROR(EPERM));
|
|
|
|
/* must be writable by this zone */
|
|
if (!writable)
|
|
return (SET_ERROR(EPERM));
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfs_dozonecheck(const char *dataset, cred_t *cr)
|
|
{
|
|
uint64_t zoned;
|
|
|
|
if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
|
|
return (SET_ERROR(ENOENT));
|
|
|
|
return (zfs_dozonecheck_impl(dataset, zoned, cr));
|
|
}
|
|
|
|
static int
|
|
zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr)
|
|
{
|
|
uint64_t zoned;
|
|
|
|
if (dsl_prop_get_int_ds(ds, "zoned", &zoned))
|
|
return (SET_ERROR(ENOENT));
|
|
|
|
return (zfs_dozonecheck_impl(dataset, zoned, cr));
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds,
|
|
const char *perm, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
error = zfs_dozonecheck_ds(name, ds, cr);
|
|
if (error == 0) {
|
|
error = secpolicy_zfs(cr);
|
|
if (error != 0)
|
|
error = dsl_deleg_access_impl(ds, perm, cr);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
|
|
{
|
|
int error;
|
|
dsl_dataset_t *ds;
|
|
dsl_pool_t *dp;
|
|
|
|
/*
|
|
* First do a quick check for root in the global zone, which
|
|
* is allowed to do all write_perms. This ensures that zfs_ioc_*
|
|
* will get to handle nonexistent datasets.
|
|
*/
|
|
if (INGLOBALZONE(curproc) && secpolicy_zfs(cr) == 0)
|
|
return (0);
|
|
|
|
error = dsl_pool_hold(name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold(dp, name, FTAG, &ds);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr);
|
|
|
|
dsl_dataset_rele(ds, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Policy for setting the security label property.
|
|
*
|
|
* Returns 0 for success, non-zero for access and other errors.
|
|
*/
|
|
static int
|
|
zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
|
|
{
|
|
#ifdef HAVE_MLSLABEL
|
|
char ds_hexsl[MAXNAMELEN];
|
|
bslabel_t ds_sl, new_sl;
|
|
boolean_t new_default = FALSE;
|
|
uint64_t zoned;
|
|
int needed_priv = -1;
|
|
int error;
|
|
|
|
/* First get the existing dataset label. */
|
|
error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
|
|
1, sizeof (ds_hexsl), &ds_hexsl, NULL);
|
|
if (error != 0)
|
|
return (SET_ERROR(EPERM));
|
|
|
|
if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0)
|
|
new_default = TRUE;
|
|
|
|
/* The label must be translatable */
|
|
if (!new_default && (hexstr_to_label(strval, &new_sl) != 0))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
/*
|
|
* In a non-global zone, disallow attempts to set a label that
|
|
* doesn't match that of the zone; otherwise no other checks
|
|
* are needed.
|
|
*/
|
|
if (!INGLOBALZONE(curproc)) {
|
|
if (new_default || !blequal(&new_sl, CR_SL(CRED())))
|
|
return (SET_ERROR(EPERM));
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* For global-zone datasets (i.e., those whose zoned property is
|
|
* "off", verify that the specified new label is valid for the
|
|
* global zone.
|
|
*/
|
|
if (dsl_prop_get_integer(name,
|
|
zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
|
|
return (SET_ERROR(EPERM));
|
|
if (!zoned) {
|
|
if (zfs_check_global_label(name, strval) != 0)
|
|
return (SET_ERROR(EPERM));
|
|
}
|
|
|
|
/*
|
|
* If the existing dataset label is nondefault, check if the
|
|
* dataset is mounted (label cannot be changed while mounted).
|
|
* Get the zfsvfs_t; if there isn't one, then the dataset isn't
|
|
* mounted (or isn't a dataset, doesn't exist, ...).
|
|
*/
|
|
if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) {
|
|
objset_t *os;
|
|
static char *setsl_tag = "setsl_tag";
|
|
|
|
/*
|
|
* Try to own the dataset; abort if there is any error,
|
|
* (e.g., already mounted, in use, or other error).
|
|
*/
|
|
error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, B_TRUE,
|
|
setsl_tag, &os);
|
|
if (error != 0)
|
|
return (SET_ERROR(EPERM));
|
|
|
|
dmu_objset_disown(os, B_TRUE, setsl_tag);
|
|
|
|
if (new_default) {
|
|
needed_priv = PRIV_FILE_DOWNGRADE_SL;
|
|
goto out_check;
|
|
}
|
|
|
|
if (hexstr_to_label(strval, &new_sl) != 0)
|
|
return (SET_ERROR(EPERM));
|
|
|
|
if (blstrictdom(&ds_sl, &new_sl))
|
|
needed_priv = PRIV_FILE_DOWNGRADE_SL;
|
|
else if (blstrictdom(&new_sl, &ds_sl))
|
|
needed_priv = PRIV_FILE_UPGRADE_SL;
|
|
} else {
|
|
/* dataset currently has a default label */
|
|
if (!new_default)
|
|
needed_priv = PRIV_FILE_UPGRADE_SL;
|
|
}
|
|
|
|
out_check:
|
|
if (needed_priv != -1)
|
|
return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL));
|
|
return (0);
|
|
#else
|
|
return (SET_ERROR(ENOTSUP));
|
|
#endif /* HAVE_MLSLABEL */
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval,
|
|
cred_t *cr)
|
|
{
|
|
char *strval;
|
|
|
|
/*
|
|
* Check permissions for special properties.
|
|
*/
|
|
switch (prop) {
|
|
default:
|
|
break;
|
|
case ZFS_PROP_ZONED:
|
|
/*
|
|
* Disallow setting of 'zoned' from within a local zone.
|
|
*/
|
|
if (!INGLOBALZONE(curproc))
|
|
return (SET_ERROR(EPERM));
|
|
break;
|
|
|
|
case ZFS_PROP_QUOTA:
|
|
case ZFS_PROP_FILESYSTEM_LIMIT:
|
|
case ZFS_PROP_SNAPSHOT_LIMIT:
|
|
if (!INGLOBALZONE(curproc)) {
|
|
uint64_t zoned;
|
|
char setpoint[ZFS_MAX_DATASET_NAME_LEN];
|
|
/*
|
|
* Unprivileged users are allowed to modify the
|
|
* limit on things *under* (ie. contained by)
|
|
* the thing they own.
|
|
*/
|
|
if (dsl_prop_get_integer(dsname, "zoned", &zoned,
|
|
setpoint))
|
|
return (SET_ERROR(EPERM));
|
|
if (!zoned || strlen(dsname) <= strlen(setpoint))
|
|
return (SET_ERROR(EPERM));
|
|
}
|
|
break;
|
|
|
|
case ZFS_PROP_MLSLABEL:
|
|
if (!is_system_labeled())
|
|
return (SET_ERROR(EPERM));
|
|
|
|
if (nvpair_value_string(propval, &strval) == 0) {
|
|
int err;
|
|
|
|
err = zfs_set_slabel_policy(dsname, strval, CRED());
|
|
if (err != 0)
|
|
return (err);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
error = zfs_dozonecheck(zc->zc_name, cr);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* permission to set permissions will be evaluated later in
|
|
* dsl_deleg_can_allow()
|
|
*/
|
|
return (0);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_ROLLBACK, cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *ds;
|
|
char *cp;
|
|
int error;
|
|
|
|
/*
|
|
* Generate the current snapshot name from the given objsetid, then
|
|
* use that name for the secpolicy/zone checks.
|
|
*/
|
|
cp = strchr(zc->zc_name, '@');
|
|
if (cp == NULL)
|
|
return (SET_ERROR(EINVAL));
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
dsl_dataset_name(ds, zc->zc_name);
|
|
|
|
error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds,
|
|
ZFS_DELEG_PERM_SEND, cr);
|
|
dsl_dataset_rele(ds, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_SEND, cr));
|
|
}
|
|
|
|
int
|
|
zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
|
|
int
|
|
zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
|
|
static int
|
|
zfs_get_parent(const char *datasetname, char *parent, int parentsize)
|
|
{
|
|
char *cp;
|
|
|
|
/*
|
|
* Remove the @bla or /bla from the end of the name to get the parent.
|
|
*/
|
|
(void) strncpy(parent, datasetname, parentsize);
|
|
cp = strrchr(parent, '@');
|
|
if (cp != NULL) {
|
|
cp[0] = '\0';
|
|
} else {
|
|
cp = strrchr(parent, '/');
|
|
if (cp == NULL)
|
|
return (SET_ERROR(ENOENT));
|
|
cp[0] = '\0';
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
if ((error = zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_MOUNT, cr)) != 0)
|
|
return (error);
|
|
|
|
return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
|
|
}
|
|
|
|
/*
|
|
* Destroying snapshots with delegated permissions requires
|
|
* descendant mount and destroy permissions.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
nvlist_t *snaps;
|
|
nvpair_t *pair, *nextpair;
|
|
int error = 0;
|
|
|
|
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
|
|
|
|
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
|
|
pair = nextpair) {
|
|
nextpair = nvlist_next_nvpair(snaps, pair);
|
|
error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr);
|
|
if (error == ENOENT) {
|
|
/*
|
|
* Ignore any snapshots that don't exist (we consider
|
|
* them "already destroyed"). Remove the name from the
|
|
* nvl here in case the snapshot is created between
|
|
* now and when we try to destroy it (in which case
|
|
* we don't want to destroy it since we haven't
|
|
* checked for permission).
|
|
*/
|
|
fnvlist_remove_nvpair(snaps, pair);
|
|
error = 0;
|
|
}
|
|
if (error != 0)
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
|
|
{
|
|
char parentname[ZFS_MAX_DATASET_NAME_LEN];
|
|
int error;
|
|
|
|
if ((error = zfs_secpolicy_write_perms(from,
|
|
ZFS_DELEG_PERM_RENAME, cr)) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(from,
|
|
ZFS_DELEG_PERM_MOUNT, cr)) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_get_parent(to, parentname,
|
|
sizeof (parentname))) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_CREATE, cr)) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_MOUNT, cr)) != 0)
|
|
return (error);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *clone;
|
|
int error;
|
|
|
|
error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_PROMOTE, cr);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone);
|
|
|
|
if (error == 0) {
|
|
char parentname[ZFS_MAX_DATASET_NAME_LEN];
|
|
dsl_dataset_t *origin = NULL;
|
|
dsl_dir_t *dd;
|
|
dd = clone->ds_dir;
|
|
|
|
error = dsl_dataset_hold_obj(dd->dd_pool,
|
|
dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin);
|
|
if (error != 0) {
|
|
dsl_dataset_rele(clone, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone,
|
|
ZFS_DELEG_PERM_MOUNT, cr);
|
|
|
|
dsl_dataset_name(origin, parentname);
|
|
if (error == 0) {
|
|
error = zfs_secpolicy_write_perms_ds(parentname, origin,
|
|
ZFS_DELEG_PERM_PROMOTE, cr);
|
|
}
|
|
dsl_dataset_rele(clone, FTAG);
|
|
dsl_dataset_rele(origin, FTAG);
|
|
}
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
if ((error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_MOUNT, cr)) != 0)
|
|
return (error);
|
|
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_CREATE, cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_recv_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_recv(zc, innvl, cr));
|
|
}
|
|
|
|
int
|
|
zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_SNAPSHOT, cr));
|
|
}
|
|
|
|
/*
|
|
* Check for permission to create each snapshot in the nvlist.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
nvlist_t *snaps;
|
|
int error = 0;
|
|
nvpair_t *pair;
|
|
|
|
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
|
|
|
|
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
|
|
pair = nvlist_next_nvpair(snaps, pair)) {
|
|
char *name = nvpair_name(pair);
|
|
char *atp = strchr(name, '@');
|
|
|
|
if (atp == NULL) {
|
|
error = SET_ERROR(EINVAL);
|
|
break;
|
|
}
|
|
*atp = '\0';
|
|
error = zfs_secpolicy_snapshot_perms(name, cr);
|
|
*atp = '@';
|
|
if (error != 0)
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Check for permission to create each bookmark in the nvlist.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
int error = 0;
|
|
|
|
for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
|
|
pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
|
|
char *name = nvpair_name(pair);
|
|
char *hashp = strchr(name, '#');
|
|
|
|
if (hashp == NULL) {
|
|
error = SET_ERROR(EINVAL);
|
|
break;
|
|
}
|
|
*hashp = '\0';
|
|
error = zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_BOOKMARK, cr);
|
|
*hashp = '#';
|
|
if (error != 0)
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_remap(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_REMAP, cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
nvpair_t *pair, *nextpair;
|
|
int error = 0;
|
|
|
|
for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
|
|
pair = nextpair) {
|
|
char *name = nvpair_name(pair);
|
|
char *hashp = strchr(name, '#');
|
|
nextpair = nvlist_next_nvpair(innvl, pair);
|
|
|
|
if (hashp == NULL) {
|
|
error = SET_ERROR(EINVAL);
|
|
break;
|
|
}
|
|
|
|
*hashp = '\0';
|
|
error = zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_DESTROY, cr);
|
|
*hashp = '#';
|
|
if (error == ENOENT) {
|
|
/*
|
|
* Ignore any filesystems that don't exist (we consider
|
|
* their bookmarks "already destroyed"). Remove
|
|
* the name from the nvl here in case the filesystem
|
|
* is created between now and when we try to destroy
|
|
* the bookmark (in which case we don't want to
|
|
* destroy it since we haven't checked for permission).
|
|
*/
|
|
fnvlist_remove_nvpair(innvl, pair);
|
|
error = 0;
|
|
}
|
|
if (error != 0)
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
/*
|
|
* Even root must have a proper TSD so that we know what pool
|
|
* to log to.
|
|
*/
|
|
if (tsd_get(zfs_allow_log_key) == NULL)
|
|
return (SET_ERROR(EPERM));
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
char parentname[ZFS_MAX_DATASET_NAME_LEN];
|
|
int error;
|
|
char *origin;
|
|
|
|
if ((error = zfs_get_parent(zc->zc_name, parentname,
|
|
sizeof (parentname))) != 0)
|
|
return (error);
|
|
|
|
if (nvlist_lookup_string(innvl, "origin", &origin) == 0 &&
|
|
(error = zfs_secpolicy_write_perms(origin,
|
|
ZFS_DELEG_PERM_CLONE, cr)) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_CREATE, cr)) != 0)
|
|
return (error);
|
|
|
|
return (zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_MOUNT, cr));
|
|
}
|
|
|
|
/*
|
|
* Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
|
|
* SYS_CONFIG privilege, which is not available in a local zone.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
if (secpolicy_sys_config(cr, B_FALSE) != 0)
|
|
return (SET_ERROR(EPERM));
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Policy for object to name lookups.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0)
|
|
return (0);
|
|
|
|
error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Policy for fault injection. Requires all privileges.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (secpolicy_zinject(cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
if (!zfs_prop_user(zc->zc_value))
|
|
return (SET_ERROR(EINVAL));
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_USERPROP, cr));
|
|
} else {
|
|
return (zfs_secpolicy_setprop(zc->zc_name, prop,
|
|
NULL, cr));
|
|
}
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
int err = zfs_secpolicy_read(zc, innvl, cr);
|
|
if (err)
|
|
return (err);
|
|
|
|
if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if (zc->zc_value[0] == 0) {
|
|
/*
|
|
* They are asking about a posix uid/gid. If it's
|
|
* themself, allow it.
|
|
*/
|
|
if (zc->zc_objset_type == ZFS_PROP_USERUSED ||
|
|
zc->zc_objset_type == ZFS_PROP_USERQUOTA ||
|
|
zc->zc_objset_type == ZFS_PROP_USEROBJUSED ||
|
|
zc->zc_objset_type == ZFS_PROP_USEROBJQUOTA) {
|
|
if (zc->zc_guid == crgetuid(cr))
|
|
return (0);
|
|
} else if (zc->zc_objset_type == ZFS_PROP_GROUPUSED ||
|
|
zc->zc_objset_type == ZFS_PROP_GROUPQUOTA ||
|
|
zc->zc_objset_type == ZFS_PROP_GROUPOBJUSED ||
|
|
zc->zc_objset_type == ZFS_PROP_GROUPOBJQUOTA) {
|
|
if (groupmember(zc->zc_guid, cr))
|
|
return (0);
|
|
}
|
|
/* else is for project quota/used */
|
|
}
|
|
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
userquota_perms[zc->zc_objset_type], cr));
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
int err = zfs_secpolicy_read(zc, innvl, cr);
|
|
if (err)
|
|
return (err);
|
|
|
|
if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
userquota_perms[zc->zc_objset_type], cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION,
|
|
NULL, cr));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
nvpair_t *pair;
|
|
nvlist_t *holds;
|
|
int error;
|
|
|
|
holds = fnvlist_lookup_nvlist(innvl, "holds");
|
|
|
|
for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
|
|
pair = nvlist_next_nvpair(holds, pair)) {
|
|
char fsname[ZFS_MAX_DATASET_NAME_LEN];
|
|
error = dmu_fsname(nvpair_name(pair), fsname);
|
|
if (error != 0)
|
|
return (error);
|
|
error = zfs_secpolicy_write_perms(fsname,
|
|
ZFS_DELEG_PERM_HOLD, cr);
|
|
if (error != 0)
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
nvpair_t *pair;
|
|
int error;
|
|
|
|
for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
|
|
pair = nvlist_next_nvpair(innvl, pair)) {
|
|
char fsname[ZFS_MAX_DATASET_NAME_LEN];
|
|
error = dmu_fsname(nvpair_name(pair), fsname);
|
|
if (error != 0)
|
|
return (error);
|
|
error = zfs_secpolicy_write_perms(fsname,
|
|
ZFS_DELEG_PERM_RELEASE, cr);
|
|
if (error != 0)
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Policy for allowing temporary snapshots to be taken or released
|
|
*/
|
|
static int
|
|
zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
/*
|
|
* A temporary snapshot is the same as a snapshot,
|
|
* hold, destroy and release all rolled into one.
|
|
* Delegated diff alone is sufficient that we allow this.
|
|
*/
|
|
int error;
|
|
|
|
if ((error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_DIFF, cr)) == 0)
|
|
return (0);
|
|
|
|
error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr);
|
|
|
|
if (innvl != NULL) {
|
|
if (error == 0)
|
|
error = zfs_secpolicy_hold(zc, innvl, cr);
|
|
if (error == 0)
|
|
error = zfs_secpolicy_release(zc, innvl, cr);
|
|
if (error == 0)
|
|
error = zfs_secpolicy_destroy(zc, innvl, cr);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_load_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_LOAD_KEY, cr));
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_change_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
|
|
{
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_CHANGE_KEY, cr));
|
|
}
|
|
|
|
/*
|
|
* Returns the nvlist as specified by the user in the zfs_cmd_t.
|
|
*/
|
|
static int
|
|
get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
|
|
{
|
|
char *packed;
|
|
int error;
|
|
nvlist_t *list = NULL;
|
|
|
|
/*
|
|
* Read in and unpack the user-supplied nvlist.
|
|
*/
|
|
if (size == 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
packed = vmem_alloc(size, KM_SLEEP);
|
|
|
|
if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
|
|
iflag)) != 0) {
|
|
vmem_free(packed, size);
|
|
return (SET_ERROR(EFAULT));
|
|
}
|
|
|
|
if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
|
|
vmem_free(packed, size);
|
|
return (error);
|
|
}
|
|
|
|
vmem_free(packed, size);
|
|
|
|
*nvp = list;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Reduce the size of this nvlist until it can be serialized in 'max' bytes.
|
|
* Entries will be removed from the end of the nvlist, and one int32 entry
|
|
* named "N_MORE_ERRORS" will be added indicating how many entries were
|
|
* removed.
|
|
*/
|
|
static int
|
|
nvlist_smush(nvlist_t *errors, size_t max)
|
|
{
|
|
size_t size;
|
|
|
|
size = fnvlist_size(errors);
|
|
|
|
if (size > max) {
|
|
nvpair_t *more_errors;
|
|
int n = 0;
|
|
|
|
if (max < 1024)
|
|
return (SET_ERROR(ENOMEM));
|
|
|
|
fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0);
|
|
more_errors = nvlist_prev_nvpair(errors, NULL);
|
|
|
|
do {
|
|
nvpair_t *pair = nvlist_prev_nvpair(errors,
|
|
more_errors);
|
|
fnvlist_remove_nvpair(errors, pair);
|
|
n++;
|
|
size = fnvlist_size(errors);
|
|
} while (size > max);
|
|
|
|
fnvlist_remove_nvpair(errors, more_errors);
|
|
fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n);
|
|
ASSERT3U(fnvlist_size(errors), <=, max);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
|
|
{
|
|
char *packed = NULL;
|
|
int error = 0;
|
|
size_t size;
|
|
|
|
size = fnvlist_size(nvl);
|
|
|
|
if (size > zc->zc_nvlist_dst_size) {
|
|
error = SET_ERROR(ENOMEM);
|
|
} else {
|
|
packed = fnvlist_pack(nvl, &size);
|
|
if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
|
|
size, zc->zc_iflags) != 0)
|
|
error = SET_ERROR(EFAULT);
|
|
fnvlist_pack_free(packed, size);
|
|
}
|
|
|
|
zc->zc_nvlist_dst_size = size;
|
|
zc->zc_nvlist_dst_filled = B_TRUE;
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
getzfsvfs_impl(objset_t *os, zfsvfs_t **zfvp)
|
|
{
|
|
int error = 0;
|
|
if (dmu_objset_type(os) != DMU_OST_ZFS) {
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
mutex_enter(&os->os_user_ptr_lock);
|
|
*zfvp = dmu_objset_get_user(os);
|
|
/* bump s_active only when non-zero to prevent umount race */
|
|
if (*zfvp == NULL || (*zfvp)->z_sb == NULL ||
|
|
!atomic_inc_not_zero(&((*zfvp)->z_sb->s_active))) {
|
|
error = SET_ERROR(ESRCH);
|
|
}
|
|
mutex_exit(&os->os_user_ptr_lock);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
getzfsvfs(const char *dsname, zfsvfs_t **zfvp)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
error = dmu_objset_hold(dsname, FTAG, &os);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = getzfsvfs_impl(os, zfvp);
|
|
dmu_objset_rele(os, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Find a zfsvfs_t for a mounted filesystem, or create our own, in which
|
|
* case its z_sb will be NULL, and it will be opened as the owner.
|
|
* If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
|
|
* which prevents all inode ops from running.
|
|
*/
|
|
static int
|
|
zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer)
|
|
{
|
|
int error = 0;
|
|
|
|
if (getzfsvfs(name, zfvp) != 0)
|
|
error = zfsvfs_create(name, B_FALSE, zfvp);
|
|
if (error == 0) {
|
|
rrm_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER :
|
|
RW_READER, tag);
|
|
if ((*zfvp)->z_unmounted) {
|
|
/*
|
|
* XXX we could probably try again, since the unmounting
|
|
* thread should be just about to disassociate the
|
|
* objset from the zfsvfs.
|
|
*/
|
|
rrm_exit(&(*zfvp)->z_teardown_lock, tag);
|
|
return (SET_ERROR(EBUSY));
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
|
|
{
|
|
rrm_exit(&zfsvfs->z_teardown_lock, tag);
|
|
|
|
if (zfsvfs->z_sb) {
|
|
deactivate_super(zfsvfs->z_sb);
|
|
} else {
|
|
dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs);
|
|
zfsvfs_free(zfsvfs);
|
|
}
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_create(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
nvlist_t *config, *props = NULL;
|
|
nvlist_t *rootprops = NULL;
|
|
nvlist_t *zplprops = NULL;
|
|
dsl_crypto_params_t *dcp = NULL;
|
|
char *spa_name = zc->zc_name;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &config)))
|
|
return (error);
|
|
|
|
if (zc->zc_nvlist_src_size != 0 && (error =
|
|
get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &props))) {
|
|
nvlist_free(config);
|
|
return (error);
|
|
}
|
|
|
|
if (props) {
|
|
nvlist_t *nvl = NULL;
|
|
nvlist_t *hidden_args = NULL;
|
|
uint64_t version = SPA_VERSION;
|
|
char *tname;
|
|
|
|
(void) nvlist_lookup_uint64(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
|
|
if (!SPA_VERSION_IS_SUPPORTED(version)) {
|
|
error = SET_ERROR(EINVAL);
|
|
goto pool_props_bad;
|
|
}
|
|
(void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
|
|
if (nvl) {
|
|
error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
|
|
if (error != 0) {
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
return (error);
|
|
}
|
|
(void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
|
|
}
|
|
|
|
(void) nvlist_lookup_nvlist(props, ZPOOL_HIDDEN_ARGS,
|
|
&hidden_args);
|
|
error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE,
|
|
rootprops, hidden_args, &dcp);
|
|
if (error != 0) {
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
return (error);
|
|
}
|
|
(void) nvlist_remove_all(props, ZPOOL_HIDDEN_ARGS);
|
|
|
|
VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
error = zfs_fill_zplprops_root(version, rootprops,
|
|
zplprops, NULL);
|
|
if (error != 0)
|
|
goto pool_props_bad;
|
|
|
|
if (nvlist_lookup_string(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_TNAME), &tname) == 0)
|
|
spa_name = tname;
|
|
}
|
|
|
|
error = spa_create(zc->zc_name, config, props, zplprops, dcp);
|
|
|
|
/*
|
|
* Set the remaining root properties
|
|
*/
|
|
if (!error && (error = zfs_set_prop_nvlist(spa_name,
|
|
ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
|
|
(void) spa_destroy(spa_name);
|
|
|
|
pool_props_bad:
|
|
nvlist_free(rootprops);
|
|
nvlist_free(zplprops);
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
dsl_crypto_params_free(dcp, !!error);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_destroy(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
zfs_log_history(zc);
|
|
error = spa_destroy(zc->zc_name);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_import(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *config, *props = NULL;
|
|
uint64_t guid;
|
|
int error;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &config)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_nvlist_src_size != 0 && (error =
|
|
get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &props))) {
|
|
nvlist_free(config);
|
|
return (error);
|
|
}
|
|
|
|
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
|
|
guid != zc->zc_guid)
|
|
error = SET_ERROR(EINVAL);
|
|
else
|
|
error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
|
|
|
|
if (zc->zc_nvlist_dst != 0) {
|
|
int err;
|
|
|
|
if ((err = put_nvlist(zc, config)) != 0)
|
|
error = err;
|
|
}
|
|
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_export(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
boolean_t force = (boolean_t)zc->zc_cookie;
|
|
boolean_t hardforce = (boolean_t)zc->zc_guid;
|
|
|
|
zfs_log_history(zc);
|
|
error = spa_export(zc->zc_name, NULL, force, hardforce);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_configs(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *configs;
|
|
int error;
|
|
|
|
if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
|
|
return (SET_ERROR(EEXIST));
|
|
|
|
error = put_nvlist(zc, configs);
|
|
|
|
nvlist_free(configs);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of the pool
|
|
*
|
|
* outputs:
|
|
* zc_cookie real errno
|
|
* zc_nvlist_dst config nvlist
|
|
* zc_nvlist_dst_size size of config nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_pool_stats(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *config;
|
|
int error;
|
|
int ret = 0;
|
|
|
|
error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
|
|
sizeof (zc->zc_value));
|
|
|
|
if (config != NULL) {
|
|
ret = put_nvlist(zc, config);
|
|
nvlist_free(config);
|
|
|
|
/*
|
|
* The config may be present even if 'error' is non-zero.
|
|
* In this case we return success, and preserve the real errno
|
|
* in 'zc_cookie'.
|
|
*/
|
|
zc->zc_cookie = error;
|
|
} else {
|
|
ret = error;
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Try to import the given pool, returning pool stats as appropriate so that
|
|
* user land knows which devices are available and overall pool health.
|
|
*/
|
|
static int
|
|
zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *tryconfig, *config = NULL;
|
|
int error;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &tryconfig)) != 0)
|
|
return (error);
|
|
|
|
config = spa_tryimport(tryconfig);
|
|
|
|
nvlist_free(tryconfig);
|
|
|
|
if (config == NULL)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
error = put_nvlist(zc, config);
|
|
nvlist_free(config);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of the pool
|
|
* zc_cookie scan func (pool_scan_func_t)
|
|
* zc_flags scrub pause/resume flag (pool_scrub_cmd_t)
|
|
*/
|
|
static int
|
|
zfs_ioc_pool_scan(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
if (zc->zc_flags >= POOL_SCRUB_FLAGS_END)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_flags == POOL_SCRUB_PAUSE)
|
|
error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE);
|
|
else if (zc->zc_cookie == POOL_SCAN_NONE)
|
|
error = spa_scan_stop(spa);
|
|
else
|
|
error = spa_scan(spa, zc->zc_cookie);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_freeze(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error == 0) {
|
|
spa_freeze(spa);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_cookie < spa_version(spa) ||
|
|
!SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
spa_upgrade(spa, zc->zc_cookie);
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_get_history(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
char *hist_buf;
|
|
uint64_t size;
|
|
int error;
|
|
|
|
if ((size = zc->zc_history_len) == 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
|
|
hist_buf = vmem_alloc(size, KM_SLEEP);
|
|
if ((error = spa_history_get(spa, &zc->zc_history_offset,
|
|
&zc->zc_history_len, hist_buf)) == 0) {
|
|
error = ddi_copyout(hist_buf,
|
|
(void *)(uintptr_t)zc->zc_history,
|
|
zc->zc_history_len, zc->zc_iflags);
|
|
}
|
|
|
|
spa_close(spa, FTAG);
|
|
vmem_free(hist_buf, size);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_reguid(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error == 0) {
|
|
error = spa_change_guid(spa);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
|
|
{
|
|
return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value));
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_obj object to find
|
|
*
|
|
* outputs:
|
|
* zc_value name of object
|
|
*/
|
|
static int
|
|
zfs_ioc_obj_to_path(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
/* XXX reading from objset not owned */
|
|
if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE,
|
|
FTAG, &os)) != 0)
|
|
return (error);
|
|
if (dmu_objset_type(os) != DMU_OST_ZFS) {
|
|
dmu_objset_rele_flags(os, B_TRUE, FTAG);
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value,
|
|
sizeof (zc->zc_value));
|
|
dmu_objset_rele_flags(os, B_TRUE, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_obj object to find
|
|
*
|
|
* outputs:
|
|
* zc_stat stats on object
|
|
* zc_value path to object
|
|
*/
|
|
static int
|
|
zfs_ioc_obj_to_stats(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
/* XXX reading from objset not owned */
|
|
if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE,
|
|
FTAG, &os)) != 0)
|
|
return (error);
|
|
if (dmu_objset_type(os) != DMU_OST_ZFS) {
|
|
dmu_objset_rele_flags(os, B_TRUE, FTAG);
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
|
|
sizeof (zc->zc_value));
|
|
dmu_objset_rele_flags(os, B_TRUE, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_add(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
nvlist_t *config;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &config);
|
|
if (error == 0) {
|
|
error = spa_vdev_add(spa, config);
|
|
nvlist_free(config);
|
|
}
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of the pool
|
|
* zc_guid guid of vdev to remove
|
|
* zc_cookie cancel removal
|
|
*/
|
|
static int
|
|
zfs_ioc_vdev_remove(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
if (zc->zc_cookie != 0) {
|
|
error = spa_vdev_remove_cancel(spa);
|
|
} else {
|
|
error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
|
|
}
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
vdev_state_t newstate = VDEV_STATE_UNKNOWN;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
switch (zc->zc_cookie) {
|
|
case VDEV_STATE_ONLINE:
|
|
error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
|
|
break;
|
|
|
|
case VDEV_STATE_OFFLINE:
|
|
error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
|
|
break;
|
|
|
|
case VDEV_STATE_FAULTED:
|
|
if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
|
|
zc->zc_obj != VDEV_AUX_EXTERNAL &&
|
|
zc->zc_obj != VDEV_AUX_EXTERNAL_PERSIST)
|
|
zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
|
|
|
|
error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
|
|
break;
|
|
|
|
case VDEV_STATE_DEGRADED:
|
|
if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
|
|
zc->zc_obj != VDEV_AUX_EXTERNAL)
|
|
zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
|
|
|
|
error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
|
|
break;
|
|
|
|
default:
|
|
error = SET_ERROR(EINVAL);
|
|
}
|
|
zc->zc_cookie = newstate;
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_attach(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int replacing = zc->zc_cookie;
|
|
nvlist_t *config;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &config)) == 0) {
|
|
error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
|
|
nvlist_free(config);
|
|
}
|
|
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_detach(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
|
|
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_split(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
nvlist_t *config, *props = NULL;
|
|
int error;
|
|
boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &config))) {
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
if (zc->zc_nvlist_src_size != 0 && (error =
|
|
get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &props))) {
|
|
spa_close(spa, FTAG);
|
|
nvlist_free(config);
|
|
return (error);
|
|
}
|
|
|
|
error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
char *path = zc->zc_value;
|
|
uint64_t guid = zc->zc_guid;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = spa_vdev_setpath(spa, guid, path);
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
char *fru = zc->zc_value;
|
|
uint64_t guid = zc->zc_guid;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = spa_vdev_setfru(spa, guid, fru);
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os)
|
|
{
|
|
int error = 0;
|
|
nvlist_t *nv;
|
|
|
|
dmu_objset_fast_stat(os, &zc->zc_objset_stats);
|
|
|
|
if (zc->zc_nvlist_dst != 0 &&
|
|
(error = dsl_prop_get_all(os, &nv)) == 0) {
|
|
dmu_objset_stats(os, nv);
|
|
/*
|
|
* NB: zvol_get_stats() will read the objset contents,
|
|
* which we aren't supposed to do with a
|
|
* DS_MODE_USER hold, because it could be
|
|
* inconsistent. So this is a bit of a workaround...
|
|
* XXX reading with out owning
|
|
*/
|
|
if (!zc->zc_objset_stats.dds_inconsistent &&
|
|
dmu_objset_type(os) == DMU_OST_ZVOL) {
|
|
error = zvol_get_stats(os, nv);
|
|
if (error == EIO) {
|
|
nvlist_free(nv);
|
|
return (error);
|
|
}
|
|
VERIFY0(error);
|
|
}
|
|
if (error == 0)
|
|
error = put_nvlist(zc, nv);
|
|
nvlist_free(nv);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_objset_stats stats
|
|
* zc_nvlist_dst property nvlist
|
|
* zc_nvlist_dst_size size of property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_objset_stats(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
error = dmu_objset_hold(zc->zc_name, FTAG, &os);
|
|
if (error == 0) {
|
|
error = zfs_ioc_objset_stats_impl(zc, os);
|
|
dmu_objset_rele(os, FTAG);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_dst received property nvlist
|
|
* zc_nvlist_dst_size size of received property nvlist
|
|
*
|
|
* Gets received properties (distinct from local properties on or after
|
|
* SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
|
|
* local property values.
|
|
*/
|
|
static int
|
|
zfs_ioc_objset_recvd_props(zfs_cmd_t *zc)
|
|
{
|
|
int error = 0;
|
|
nvlist_t *nv;
|
|
|
|
/*
|
|
* Without this check, we would return local property values if the
|
|
* caller has not already received properties on or after
|
|
* SPA_VERSION_RECVD_PROPS.
|
|
*/
|
|
if (!dsl_prop_get_hasrecvd(zc->zc_name))
|
|
return (SET_ERROR(ENOTSUP));
|
|
|
|
if (zc->zc_nvlist_dst != 0 &&
|
|
(error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) {
|
|
error = put_nvlist(zc, nv);
|
|
nvlist_free(nv);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
|
|
{
|
|
uint64_t value;
|
|
int error;
|
|
|
|
/*
|
|
* zfs_get_zplprop() will either find a value or give us
|
|
* the default value (if there is one).
|
|
*/
|
|
if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
|
|
return (error);
|
|
VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_dst_size size of buffer for zpl property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_dst zpl property nvlist
|
|
* zc_nvlist_dst_size size of zpl property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int err;
|
|
|
|
/* XXX reading without owning */
|
|
if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os)))
|
|
return (err);
|
|
|
|
dmu_objset_fast_stat(os, &zc->zc_objset_stats);
|
|
|
|
/*
|
|
* NB: nvl_add_zplprop() will read the objset contents,
|
|
* which we aren't supposed to do with a DS_MODE_USER
|
|
* hold, because it could be inconsistent.
|
|
*/
|
|
if (zc->zc_nvlist_dst != 0 &&
|
|
!zc->zc_objset_stats.dds_inconsistent &&
|
|
dmu_objset_type(os) == DMU_OST_ZFS) {
|
|
nvlist_t *nv;
|
|
|
|
VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
|
|
(err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
|
|
(err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
|
|
(err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
|
|
err = put_nvlist(zc, nv);
|
|
nvlist_free(nv);
|
|
} else {
|
|
err = SET_ERROR(ENOENT);
|
|
}
|
|
dmu_objset_rele(os, FTAG);
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_cookie zap cursor
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_name name of next filesystem
|
|
* zc_cookie zap cursor
|
|
* zc_objset_stats stats
|
|
* zc_nvlist_dst property nvlist
|
|
* zc_nvlist_dst_size size of property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
char *p;
|
|
size_t orig_len = strlen(zc->zc_name);
|
|
|
|
top:
|
|
if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) {
|
|
if (error == ENOENT)
|
|
error = SET_ERROR(ESRCH);
|
|
return (error);
|
|
}
|
|
|
|
p = strrchr(zc->zc_name, '/');
|
|
if (p == NULL || p[1] != '\0')
|
|
(void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
|
|
p = zc->zc_name + strlen(zc->zc_name);
|
|
|
|
do {
|
|
error = dmu_dir_list_next(os,
|
|
sizeof (zc->zc_name) - (p - zc->zc_name), p,
|
|
NULL, &zc->zc_cookie);
|
|
if (error == ENOENT)
|
|
error = SET_ERROR(ESRCH);
|
|
} while (error == 0 && zfs_dataset_name_hidden(zc->zc_name));
|
|
dmu_objset_rele(os, FTAG);
|
|
|
|
/*
|
|
* If it's an internal dataset (ie. with a '$' in its name),
|
|
* don't try to get stats for it, otherwise we'll return ENOENT.
|
|
*/
|
|
if (error == 0 && strchr(zc->zc_name, '$') == NULL) {
|
|
error = zfs_ioc_objset_stats(zc); /* fill in the stats */
|
|
if (error == ENOENT) {
|
|
/* We lost a race with destroy, get the next one. */
|
|
zc->zc_name[orig_len] = '\0';
|
|
goto top;
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_cookie zap cursor
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_name name of next snapshot
|
|
* zc_objset_stats stats
|
|
* zc_nvlist_dst property nvlist
|
|
* zc_nvlist_dst_size size of property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
error = dmu_objset_hold(zc->zc_name, FTAG, &os);
|
|
if (error != 0) {
|
|
return (error == ENOENT ? ESRCH : error);
|
|
}
|
|
|
|
/*
|
|
* A dataset name of maximum length cannot have any snapshots,
|
|
* so exit immediately.
|
|
*/
|
|
if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >=
|
|
ZFS_MAX_DATASET_NAME_LEN) {
|
|
dmu_objset_rele(os, FTAG);
|
|
return (SET_ERROR(ESRCH));
|
|
}
|
|
|
|
error = dmu_snapshot_list_next(os,
|
|
sizeof (zc->zc_name) - strlen(zc->zc_name),
|
|
zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie,
|
|
NULL);
|
|
|
|
if (error == 0 && !zc->zc_simple) {
|
|
dsl_dataset_t *ds;
|
|
dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool;
|
|
|
|
error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds);
|
|
if (error == 0) {
|
|
objset_t *ossnap;
|
|
|
|
error = dmu_objset_from_ds(ds, &ossnap);
|
|
if (error == 0)
|
|
error = zfs_ioc_objset_stats_impl(zc, ossnap);
|
|
dsl_dataset_rele(ds, FTAG);
|
|
}
|
|
} else if (error == ENOENT) {
|
|
error = SET_ERROR(ESRCH);
|
|
}
|
|
|
|
dmu_objset_rele(os, FTAG);
|
|
/* if we failed, undo the @ that we tacked on to zc_name */
|
|
if (error != 0)
|
|
*strchr(zc->zc_name, '@') = '\0';
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_prop_set_userquota(const char *dsname, nvpair_t *pair)
|
|
{
|
|
const char *propname = nvpair_name(pair);
|
|
uint64_t *valary;
|
|
unsigned int vallen;
|
|
const char *domain;
|
|
char *dash;
|
|
zfs_userquota_prop_t type;
|
|
uint64_t rid;
|
|
uint64_t quota;
|
|
zfsvfs_t *zfsvfs;
|
|
int err;
|
|
|
|
if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
|
|
nvlist_t *attrs;
|
|
VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
|
|
if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
|
|
&pair) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
/*
|
|
* A correctly constructed propname is encoded as
|
|
* userquota@<rid>-<domain>.
|
|
*/
|
|
if ((dash = strchr(propname, '-')) == NULL ||
|
|
nvpair_value_uint64_array(pair, &valary, &vallen) != 0 ||
|
|
vallen != 3)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
domain = dash + 1;
|
|
type = valary[0];
|
|
rid = valary[1];
|
|
quota = valary[2];
|
|
|
|
err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE);
|
|
if (err == 0) {
|
|
err = zfs_set_userquota(zfsvfs, type, domain, rid, quota);
|
|
zfsvfs_rele(zfsvfs, FTAG);
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* If the named property is one that has a special function to set its value,
|
|
* return 0 on success and a positive error code on failure; otherwise if it is
|
|
* not one of the special properties handled by this function, return -1.
|
|
*
|
|
* XXX: It would be better for callers of the property interface if we handled
|
|
* these special cases in dsl_prop.c (in the dsl layer).
|
|
*/
|
|
static int
|
|
zfs_prop_set_special(const char *dsname, zprop_source_t source,
|
|
nvpair_t *pair)
|
|
{
|
|
const char *propname = nvpair_name(pair);
|
|
zfs_prop_t prop = zfs_name_to_prop(propname);
|
|
uint64_t intval = 0;
|
|
char *strval = NULL;
|
|
int err = -1;
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
if (zfs_prop_userquota(propname))
|
|
return (zfs_prop_set_userquota(dsname, pair));
|
|
return (-1);
|
|
}
|
|
|
|
if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
|
|
nvlist_t *attrs;
|
|
VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
|
|
VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
|
|
&pair) == 0);
|
|
}
|
|
|
|
/* all special properties are numeric except for keylocation */
|
|
if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) {
|
|
strval = fnvpair_value_string(pair);
|
|
} else {
|
|
intval = fnvpair_value_uint64(pair);
|
|
}
|
|
|
|
switch (prop) {
|
|
case ZFS_PROP_QUOTA:
|
|
err = dsl_dir_set_quota(dsname, source, intval);
|
|
break;
|
|
case ZFS_PROP_REFQUOTA:
|
|
err = dsl_dataset_set_refquota(dsname, source, intval);
|
|
break;
|
|
case ZFS_PROP_FILESYSTEM_LIMIT:
|
|
case ZFS_PROP_SNAPSHOT_LIMIT:
|
|
if (intval == UINT64_MAX) {
|
|
/* clearing the limit, just do it */
|
|
err = 0;
|
|
} else {
|
|
err = dsl_dir_activate_fs_ss_limit(dsname);
|
|
}
|
|
/*
|
|
* Set err to -1 to force the zfs_set_prop_nvlist code down the
|
|
* default path to set the value in the nvlist.
|
|
*/
|
|
if (err == 0)
|
|
err = -1;
|
|
break;
|
|
case ZFS_PROP_KEYLOCATION:
|
|
err = dsl_crypto_can_set_keylocation(dsname, strval);
|
|
|
|
/*
|
|
* Set err to -1 to force the zfs_set_prop_nvlist code down the
|
|
* default path to set the value in the nvlist.
|
|
*/
|
|
if (err == 0)
|
|
err = -1;
|
|
break;
|
|
case ZFS_PROP_RESERVATION:
|
|
err = dsl_dir_set_reservation(dsname, source, intval);
|
|
break;
|
|
case ZFS_PROP_REFRESERVATION:
|
|
err = dsl_dataset_set_refreservation(dsname, source, intval);
|
|
break;
|
|
case ZFS_PROP_VOLSIZE:
|
|
err = zvol_set_volsize(dsname, intval);
|
|
break;
|
|
case ZFS_PROP_SNAPDEV:
|
|
err = zvol_set_snapdev(dsname, source, intval);
|
|
break;
|
|
case ZFS_PROP_VOLMODE:
|
|
err = zvol_set_volmode(dsname, source, intval);
|
|
break;
|
|
case ZFS_PROP_VERSION:
|
|
{
|
|
zfsvfs_t *zfsvfs;
|
|
|
|
if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0)
|
|
break;
|
|
|
|
err = zfs_set_version(zfsvfs, intval);
|
|
zfsvfs_rele(zfsvfs, FTAG);
|
|
|
|
if (err == 0 && intval >= ZPL_VERSION_USERSPACE) {
|
|
zfs_cmd_t *zc;
|
|
|
|
zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
|
|
(void) strcpy(zc->zc_name, dsname);
|
|
(void) zfs_ioc_userspace_upgrade(zc);
|
|
(void) zfs_ioc_id_quota_upgrade(zc);
|
|
kmem_free(zc, sizeof (zfs_cmd_t));
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
err = -1;
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* This function is best effort. If it fails to set any of the given properties,
|
|
* it continues to set as many as it can and returns the last error
|
|
* encountered. If the caller provides a non-NULL errlist, it will be filled in
|
|
* with the list of names of all the properties that failed along with the
|
|
* corresponding error numbers.
|
|
*
|
|
* If every property is set successfully, zero is returned and errlist is not
|
|
* modified.
|
|
*/
|
|
int
|
|
zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
|
|
nvlist_t *errlist)
|
|
{
|
|
nvpair_t *pair;
|
|
nvpair_t *propval;
|
|
int rv = 0;
|
|
uint64_t intval;
|
|
char *strval;
|
|
|
|
nvlist_t *genericnvl = fnvlist_alloc();
|
|
nvlist_t *retrynvl = fnvlist_alloc();
|
|
retry:
|
|
pair = NULL;
|
|
while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
|
|
const char *propname = nvpair_name(pair);
|
|
zfs_prop_t prop = zfs_name_to_prop(propname);
|
|
int err = 0;
|
|
|
|
/* decode the property value */
|
|
propval = pair;
|
|
if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
|
|
nvlist_t *attrs;
|
|
attrs = fnvpair_value_nvlist(pair);
|
|
if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
|
|
&propval) != 0)
|
|
err = SET_ERROR(EINVAL);
|
|
}
|
|
|
|
/* Validate value type */
|
|
if (err == 0 && source == ZPROP_SRC_INHERITED) {
|
|
/* inherited properties are expected to be booleans */
|
|
if (nvpair_type(propval) != DATA_TYPE_BOOLEAN)
|
|
err = SET_ERROR(EINVAL);
|
|
} else if (err == 0 && prop == ZPROP_INVAL) {
|
|
if (zfs_prop_user(propname)) {
|
|
if (nvpair_type(propval) != DATA_TYPE_STRING)
|
|
err = SET_ERROR(EINVAL);
|
|
} else if (zfs_prop_userquota(propname)) {
|
|
if (nvpair_type(propval) !=
|
|
DATA_TYPE_UINT64_ARRAY)
|
|
err = SET_ERROR(EINVAL);
|
|
} else {
|
|
err = SET_ERROR(EINVAL);
|
|
}
|
|
} else if (err == 0) {
|
|
if (nvpair_type(propval) == DATA_TYPE_STRING) {
|
|
if (zfs_prop_get_type(prop) != PROP_TYPE_STRING)
|
|
err = SET_ERROR(EINVAL);
|
|
} else if (nvpair_type(propval) == DATA_TYPE_UINT64) {
|
|
const char *unused;
|
|
|
|
intval = fnvpair_value_uint64(propval);
|
|
|
|
switch (zfs_prop_get_type(prop)) {
|
|
case PROP_TYPE_NUMBER:
|
|
break;
|
|
case PROP_TYPE_STRING:
|
|
err = SET_ERROR(EINVAL);
|
|
break;
|
|
case PROP_TYPE_INDEX:
|
|
if (zfs_prop_index_to_string(prop,
|
|
intval, &unused) != 0)
|
|
err = SET_ERROR(EINVAL);
|
|
break;
|
|
default:
|
|
cmn_err(CE_PANIC,
|
|
"unknown property type");
|
|
}
|
|
} else {
|
|
err = SET_ERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
/* Validate permissions */
|
|
if (err == 0)
|
|
err = zfs_check_settable(dsname, pair, CRED());
|
|
|
|
if (err == 0) {
|
|
if (source == ZPROP_SRC_INHERITED)
|
|
err = -1; /* does not need special handling */
|
|
else
|
|
err = zfs_prop_set_special(dsname, source,
|
|
pair);
|
|
if (err == -1) {
|
|
/*
|
|
* For better performance we build up a list of
|
|
* properties to set in a single transaction.
|
|
*/
|
|
err = nvlist_add_nvpair(genericnvl, pair);
|
|
} else if (err != 0 && nvl != retrynvl) {
|
|
/*
|
|
* This may be a spurious error caused by
|
|
* receiving quota and reservation out of order.
|
|
* Try again in a second pass.
|
|
*/
|
|
err = nvlist_add_nvpair(retrynvl, pair);
|
|
}
|
|
}
|
|
|
|
if (err != 0) {
|
|
if (errlist != NULL)
|
|
fnvlist_add_int32(errlist, propname, err);
|
|
rv = err;
|
|
}
|
|
}
|
|
|
|
if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
|
|
nvl = retrynvl;
|
|
goto retry;
|
|
}
|
|
|
|
if (!nvlist_empty(genericnvl) &&
|
|
dsl_props_set(dsname, source, genericnvl) != 0) {
|
|
/*
|
|
* If this fails, we still want to set as many properties as we
|
|
* can, so try setting them individually.
|
|
*/
|
|
pair = NULL;
|
|
while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
|
|
const char *propname = nvpair_name(pair);
|
|
int err = 0;
|
|
|
|
propval = pair;
|
|
if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
|
|
nvlist_t *attrs;
|
|
attrs = fnvpair_value_nvlist(pair);
|
|
propval = fnvlist_lookup_nvpair(attrs,
|
|
ZPROP_VALUE);
|
|
}
|
|
|
|
if (nvpair_type(propval) == DATA_TYPE_STRING) {
|
|
strval = fnvpair_value_string(propval);
|
|
err = dsl_prop_set_string(dsname, propname,
|
|
source, strval);
|
|
} else if (nvpair_type(propval) == DATA_TYPE_BOOLEAN) {
|
|
err = dsl_prop_inherit(dsname, propname,
|
|
source);
|
|
} else {
|
|
intval = fnvpair_value_uint64(propval);
|
|
err = dsl_prop_set_int(dsname, propname, source,
|
|
intval);
|
|
}
|
|
|
|
if (err != 0) {
|
|
if (errlist != NULL) {
|
|
fnvlist_add_int32(errlist, propname,
|
|
err);
|
|
}
|
|
rv = err;
|
|
}
|
|
}
|
|
}
|
|
nvlist_free(genericnvl);
|
|
nvlist_free(retrynvl);
|
|
|
|
return (rv);
|
|
}
|
|
|
|
/*
|
|
* Check that all the properties are valid user properties.
|
|
*/
|
|
static int
|
|
zfs_check_userprops(const char *fsname, nvlist_t *nvl)
|
|
{
|
|
nvpair_t *pair = NULL;
|
|
int error = 0;
|
|
|
|
while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
|
|
const char *propname = nvpair_name(pair);
|
|
|
|
if (!zfs_prop_user(propname) ||
|
|
nvpair_type(pair) != DATA_TYPE_STRING)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if ((error = zfs_secpolicy_write_perms(fsname,
|
|
ZFS_DELEG_PERM_USERPROP, CRED())))
|
|
return (error);
|
|
|
|
if (strlen(propname) >= ZAP_MAXNAMELEN)
|
|
return (SET_ERROR(ENAMETOOLONG));
|
|
|
|
if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN)
|
|
return (SET_ERROR(E2BIG));
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
|
|
{
|
|
nvpair_t *pair;
|
|
|
|
VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
|
|
pair = NULL;
|
|
while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
|
|
if (nvlist_exists(skipped, nvpair_name(pair)))
|
|
continue;
|
|
|
|
VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
|
|
}
|
|
}
|
|
|
|
static int
|
|
clear_received_props(const char *dsname, nvlist_t *props,
|
|
nvlist_t *skipped)
|
|
{
|
|
int err = 0;
|
|
nvlist_t *cleared_props = NULL;
|
|
props_skip(props, skipped, &cleared_props);
|
|
if (!nvlist_empty(cleared_props)) {
|
|
/*
|
|
* Acts on local properties until the dataset has received
|
|
* properties at least once on or after SPA_VERSION_RECVD_PROPS.
|
|
*/
|
|
zprop_source_t flags = (ZPROP_SRC_NONE |
|
|
(dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0));
|
|
err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL);
|
|
}
|
|
nvlist_free(cleared_props);
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value name of property to set
|
|
* zc_nvlist_src{_size} nvlist of properties to apply
|
|
* zc_cookie received properties flag
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_dst{_size} error for each unapplied received property
|
|
*/
|
|
static int
|
|
zfs_ioc_set_prop(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *nvl;
|
|
boolean_t received = zc->zc_cookie;
|
|
zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
|
|
ZPROP_SRC_LOCAL);
|
|
nvlist_t *errors;
|
|
int error;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &nvl)) != 0)
|
|
return (error);
|
|
|
|
if (received) {
|
|
nvlist_t *origprops;
|
|
|
|
if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) {
|
|
(void) clear_received_props(zc->zc_name,
|
|
origprops, nvl);
|
|
nvlist_free(origprops);
|
|
}
|
|
|
|
error = dsl_prop_set_hasrecvd(zc->zc_name);
|
|
}
|
|
|
|
errors = fnvlist_alloc();
|
|
if (error == 0)
|
|
error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors);
|
|
|
|
if (zc->zc_nvlist_dst != 0 && errors != NULL) {
|
|
(void) put_nvlist(zc, errors);
|
|
}
|
|
|
|
nvlist_free(errors);
|
|
nvlist_free(nvl);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value name of property to inherit
|
|
* zc_cookie revert to received value if TRUE
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_inherit_prop(zfs_cmd_t *zc)
|
|
{
|
|
const char *propname = zc->zc_value;
|
|
zfs_prop_t prop = zfs_name_to_prop(propname);
|
|
boolean_t received = zc->zc_cookie;
|
|
zprop_source_t source = (received
|
|
? ZPROP_SRC_NONE /* revert to received value, if any */
|
|
: ZPROP_SRC_INHERITED); /* explicitly inherit */
|
|
nvlist_t *dummy;
|
|
nvpair_t *pair;
|
|
zprop_type_t type;
|
|
int err;
|
|
|
|
if (!received) {
|
|
/*
|
|
* Only check this in the non-received case. We want to allow
|
|
* 'inherit -S' to revert non-inheritable properties like quota
|
|
* and reservation to the received or default values even though
|
|
* they are not considered inheritable.
|
|
*/
|
|
if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
if (!zfs_prop_user(propname))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
type = PROP_TYPE_STRING;
|
|
} else if (prop == ZFS_PROP_VOLSIZE || prop == ZFS_PROP_VERSION) {
|
|
return (SET_ERROR(EINVAL));
|
|
} else {
|
|
type = zfs_prop_get_type(prop);
|
|
}
|
|
|
|
/*
|
|
* zfs_prop_set_special() expects properties in the form of an
|
|
* nvpair with type info.
|
|
*/
|
|
dummy = fnvlist_alloc();
|
|
|
|
switch (type) {
|
|
case PROP_TYPE_STRING:
|
|
VERIFY(0 == nvlist_add_string(dummy, propname, ""));
|
|
break;
|
|
case PROP_TYPE_NUMBER:
|
|
case PROP_TYPE_INDEX:
|
|
VERIFY(0 == nvlist_add_uint64(dummy, propname, 0));
|
|
break;
|
|
default:
|
|
err = SET_ERROR(EINVAL);
|
|
goto errout;
|
|
}
|
|
|
|
pair = nvlist_next_nvpair(dummy, NULL);
|
|
if (pair == NULL) {
|
|
err = SET_ERROR(EINVAL);
|
|
} else {
|
|
err = zfs_prop_set_special(zc->zc_name, source, pair);
|
|
if (err == -1) /* property is not "special", needs handling */
|
|
err = dsl_prop_inherit(zc->zc_name, zc->zc_value,
|
|
source);
|
|
}
|
|
|
|
errout:
|
|
nvlist_free(dummy);
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_set_props(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *props;
|
|
spa_t *spa;
|
|
int error;
|
|
nvpair_t *pair;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &props)))
|
|
return (error);
|
|
|
|
/*
|
|
* If the only property is the configfile, then just do a spa_lookup()
|
|
* to handle the faulted case.
|
|
*/
|
|
pair = nvlist_next_nvpair(props, NULL);
|
|
if (pair != NULL && strcmp(nvpair_name(pair),
|
|
zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
|
|
nvlist_next_nvpair(props, pair) == NULL) {
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(zc->zc_name)) != NULL) {
|
|
spa_configfile_set(spa, props, B_FALSE);
|
|
spa_write_cachefile(spa, B_FALSE, B_TRUE);
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
if (spa != NULL) {
|
|
nvlist_free(props);
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
|
|
nvlist_free(props);
|
|
return (error);
|
|
}
|
|
|
|
error = spa_prop_set(spa, props);
|
|
|
|
nvlist_free(props);
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_get_props(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
nvlist_t *nvp = NULL;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
|
|
/*
|
|
* If the pool is faulted, there may be properties we can still
|
|
* get (such as altroot and cachefile), so attempt to get them
|
|
* anyway.
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(zc->zc_name)) != NULL)
|
|
error = spa_prop_get(spa, &nvp);
|
|
mutex_exit(&spa_namespace_lock);
|
|
} else {
|
|
error = spa_prop_get(spa, &nvp);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
|
|
if (error == 0 && zc->zc_nvlist_dst != 0)
|
|
error = put_nvlist(zc, nvp);
|
|
else
|
|
error = SET_ERROR(EFAULT);
|
|
|
|
nvlist_free(nvp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_src{_size} nvlist of delegated permissions
|
|
* zc_perm_action allow/unallow flag
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_set_fsacl(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
nvlist_t *fsaclnv = NULL;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &fsaclnv)) != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* Verify nvlist is constructed correctly
|
|
*/
|
|
if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
|
|
nvlist_free(fsaclnv);
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
/*
|
|
* If we don't have PRIV_SYS_MOUNT, then validate
|
|
* that user is allowed to hand out each permission in
|
|
* the nvlist(s)
|
|
*/
|
|
|
|
error = secpolicy_zfs(CRED());
|
|
if (error != 0) {
|
|
if (zc->zc_perm_action == B_FALSE) {
|
|
error = dsl_deleg_can_allow(zc->zc_name,
|
|
fsaclnv, CRED());
|
|
} else {
|
|
error = dsl_deleg_can_unallow(zc->zc_name,
|
|
fsaclnv, CRED());
|
|
}
|
|
}
|
|
|
|
if (error == 0)
|
|
error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
|
|
|
|
nvlist_free(fsaclnv);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_src{_size} nvlist of delegated permissions
|
|
*/
|
|
static int
|
|
zfs_ioc_get_fsacl(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *nvp;
|
|
int error;
|
|
|
|
if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
|
|
error = put_nvlist(zc, nvp);
|
|
nvlist_free(nvp);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
|
|
{
|
|
zfs_creat_t *zct = arg;
|
|
|
|
zfs_create_fs(os, cr, zct->zct_zplprops, tx);
|
|
}
|
|
|
|
#define ZFS_PROP_UNDEFINED ((uint64_t)-1)
|
|
|
|
/*
|
|
* inputs:
|
|
* os parent objset pointer (NULL if root fs)
|
|
* fuids_ok fuids allowed in this version of the spa?
|
|
* sa_ok SAs allowed in this version of the spa?
|
|
* createprops list of properties requested by creator
|
|
*
|
|
* outputs:
|
|
* zplprops values for the zplprops we attach to the master node object
|
|
* is_ci true if requested file system will be purely case-insensitive
|
|
*
|
|
* Determine the settings for utf8only, normalization and
|
|
* casesensitivity. Specific values may have been requested by the
|
|
* creator and/or we can inherit values from the parent dataset. If
|
|
* the file system is of too early a vintage, a creator can not
|
|
* request settings for these properties, even if the requested
|
|
* setting is the default value. We don't actually want to create dsl
|
|
* properties for these, so remove them from the source nvlist after
|
|
* processing.
|
|
*/
|
|
static int
|
|
zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
|
|
boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops,
|
|
nvlist_t *zplprops, boolean_t *is_ci)
|
|
{
|
|
uint64_t sense = ZFS_PROP_UNDEFINED;
|
|
uint64_t norm = ZFS_PROP_UNDEFINED;
|
|
uint64_t u8 = ZFS_PROP_UNDEFINED;
|
|
int error;
|
|
|
|
ASSERT(zplprops != NULL);
|
|
|
|
/* parent dataset must be a filesystem */
|
|
if (os != NULL && os->os_phys->os_type != DMU_OST_ZFS)
|
|
return (SET_ERROR(ZFS_ERR_WRONG_PARENT));
|
|
|
|
/*
|
|
* Pull out creator prop choices, if any.
|
|
*/
|
|
if (createprops) {
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
|
|
(void) nvlist_remove_all(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_NORMALIZE));
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
|
|
(void) nvlist_remove_all(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_CASE), &sense);
|
|
(void) nvlist_remove_all(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_CASE));
|
|
}
|
|
|
|
/*
|
|
* If the zpl version requested is whacky or the file system
|
|
* or pool is version is too "young" to support normalization
|
|
* and the creator tried to set a value for one of the props,
|
|
* error out.
|
|
*/
|
|
if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
|
|
(zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
|
|
(zplver >= ZPL_VERSION_SA && !sa_ok) ||
|
|
(zplver < ZPL_VERSION_NORMALIZATION &&
|
|
(norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
|
|
sense != ZFS_PROP_UNDEFINED)))
|
|
return (SET_ERROR(ENOTSUP));
|
|
|
|
/*
|
|
* Put the version in the zplprops
|
|
*/
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
|
|
|
|
if (norm == ZFS_PROP_UNDEFINED &&
|
|
(error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0)
|
|
return (error);
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
|
|
|
|
/*
|
|
* If we're normalizing, names must always be valid UTF-8 strings.
|
|
*/
|
|
if (norm)
|
|
u8 = 1;
|
|
if (u8 == ZFS_PROP_UNDEFINED &&
|
|
(error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0)
|
|
return (error);
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
|
|
|
|
if (sense == ZFS_PROP_UNDEFINED &&
|
|
(error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0)
|
|
return (error);
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
|
|
|
|
if (is_ci)
|
|
*is_ci = (sense == ZFS_CASE_INSENSITIVE);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
|
|
nvlist_t *zplprops, boolean_t *is_ci)
|
|
{
|
|
boolean_t fuids_ok, sa_ok;
|
|
uint64_t zplver = ZPL_VERSION;
|
|
objset_t *os = NULL;
|
|
char parentname[ZFS_MAX_DATASET_NAME_LEN];
|
|
spa_t *spa;
|
|
uint64_t spa_vers;
|
|
int error;
|
|
|
|
zfs_get_parent(dataset, parentname, sizeof (parentname));
|
|
|
|
if ((error = spa_open(dataset, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
spa_vers = spa_version(spa);
|
|
spa_close(spa, FTAG);
|
|
|
|
zplver = zfs_zpl_version_map(spa_vers);
|
|
fuids_ok = (zplver >= ZPL_VERSION_FUID);
|
|
sa_ok = (zplver >= ZPL_VERSION_SA);
|
|
|
|
/*
|
|
* Open parent object set so we can inherit zplprop values.
|
|
*/
|
|
if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0)
|
|
return (error);
|
|
|
|
error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops,
|
|
zplprops, is_ci);
|
|
dmu_objset_rele(os, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
|
|
nvlist_t *zplprops, boolean_t *is_ci)
|
|
{
|
|
boolean_t fuids_ok;
|
|
boolean_t sa_ok;
|
|
uint64_t zplver = ZPL_VERSION;
|
|
int error;
|
|
|
|
zplver = zfs_zpl_version_map(spa_vers);
|
|
fuids_ok = (zplver >= ZPL_VERSION_FUID);
|
|
sa_ok = (zplver >= ZPL_VERSION_SA);
|
|
|
|
error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok,
|
|
createprops, zplprops, is_ci);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "type" -> dmu_objset_type_t (int32)
|
|
* (optional) "props" -> { prop -> value }
|
|
* (optional) "hidden_args" -> { "wkeydata" -> value }
|
|
* raw uint8_t array of encryption wrapping key data (32 bytes)
|
|
* }
|
|
*
|
|
* outnvl: propname -> error code (int32)
|
|
*/
|
|
|
|
static const zfs_ioc_key_t zfs_keys_create[] = {
|
|
{"type", DATA_TYPE_INT32, 0},
|
|
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int error = 0;
|
|
zfs_creat_t zct = { 0 };
|
|
nvlist_t *nvprops = NULL;
|
|
nvlist_t *hidden_args = NULL;
|
|
void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
|
|
dmu_objset_type_t type;
|
|
boolean_t is_insensitive = B_FALSE;
|
|
dsl_crypto_params_t *dcp = NULL;
|
|
|
|
type = (dmu_objset_type_t)fnvlist_lookup_int32(innvl, "type");
|
|
(void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
|
|
(void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
|
|
|
|
switch (type) {
|
|
case DMU_OST_ZFS:
|
|
cbfunc = zfs_create_cb;
|
|
break;
|
|
|
|
case DMU_OST_ZVOL:
|
|
cbfunc = zvol_create_cb;
|
|
break;
|
|
|
|
default:
|
|
cbfunc = NULL;
|
|
break;
|
|
}
|
|
if (strchr(fsname, '@') ||
|
|
strchr(fsname, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
zct.zct_props = nvprops;
|
|
|
|
if (cbfunc == NULL)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if (type == DMU_OST_ZVOL) {
|
|
uint64_t volsize, volblocksize;
|
|
|
|
if (nvprops == NULL)
|
|
return (SET_ERROR(EINVAL));
|
|
if (nvlist_lookup_uint64(nvprops,
|
|
zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if ((error = nvlist_lookup_uint64(nvprops,
|
|
zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
|
|
&volblocksize)) != 0 && error != ENOENT)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if (error != 0)
|
|
volblocksize = zfs_prop_default_numeric(
|
|
ZFS_PROP_VOLBLOCKSIZE);
|
|
|
|
if ((error = zvol_check_volblocksize(fsname,
|
|
volblocksize)) != 0 ||
|
|
(error = zvol_check_volsize(volsize,
|
|
volblocksize)) != 0)
|
|
return (error);
|
|
} else if (type == DMU_OST_ZFS) {
|
|
int error;
|
|
|
|
/*
|
|
* We have to have normalization and
|
|
* case-folding flags correct when we do the
|
|
* file system creation, so go figure them out
|
|
* now.
|
|
*/
|
|
VERIFY(nvlist_alloc(&zct.zct_zplprops,
|
|
NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
error = zfs_fill_zplprops(fsname, nvprops,
|
|
zct.zct_zplprops, &is_insensitive);
|
|
if (error != 0) {
|
|
nvlist_free(zct.zct_zplprops);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, nvprops,
|
|
hidden_args, &dcp);
|
|
if (error != 0) {
|
|
nvlist_free(zct.zct_zplprops);
|
|
return (error);
|
|
}
|
|
|
|
error = dmu_objset_create(fsname, type,
|
|
is_insensitive ? DS_FLAG_CI_DATASET : 0, dcp, cbfunc, &zct);
|
|
|
|
nvlist_free(zct.zct_zplprops);
|
|
dsl_crypto_params_free(dcp, !!error);
|
|
|
|
/*
|
|
* It would be nice to do this atomically.
|
|
*/
|
|
if (error == 0) {
|
|
error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
|
|
nvprops, outnvl);
|
|
if (error != 0) {
|
|
spa_t *spa;
|
|
int error2;
|
|
|
|
/*
|
|
* Volumes will return EBUSY and cannot be destroyed
|
|
* until all asynchronous minor handling has completed.
|
|
* Wait for the spa_zvol_taskq to drain then retry.
|
|
*/
|
|
error2 = dsl_destroy_head(fsname);
|
|
while ((error2 == EBUSY) && (type == DMU_OST_ZVOL)) {
|
|
error2 = spa_open(fsname, &spa, FTAG);
|
|
if (error2 == 0) {
|
|
taskq_wait(spa->spa_zvol_taskq);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
error2 = dsl_destroy_head(fsname);
|
|
}
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "origin" -> name of origin snapshot
|
|
* (optional) "props" -> { prop -> value }
|
|
* (optional) "hidden_args" -> { "wkeydata" -> value }
|
|
* raw uint8_t array of encryption wrapping key data (32 bytes)
|
|
* }
|
|
*
|
|
* outputs:
|
|
* outnvl: propname -> error code (int32)
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_clone[] = {
|
|
{"origin", DATA_TYPE_STRING, 0},
|
|
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int error = 0;
|
|
nvlist_t *nvprops = NULL;
|
|
char *origin_name;
|
|
|
|
origin_name = fnvlist_lookup_string(innvl, "origin");
|
|
(void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
|
|
|
|
if (strchr(fsname, '@') ||
|
|
strchr(fsname, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if (dataset_namecheck(origin_name, NULL, NULL) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
error = dmu_objset_clone(fsname, origin_name);
|
|
|
|
/*
|
|
* It would be nice to do this atomically.
|
|
*/
|
|
if (error == 0) {
|
|
error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
|
|
nvprops, outnvl);
|
|
if (error != 0)
|
|
(void) dsl_destroy_head(fsname);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static const zfs_ioc_key_t zfs_keys_remap[] = {
|
|
/* no nvl keys */
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
if (strchr(fsname, '@') ||
|
|
strchr(fsname, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
return (dmu_objset_remap_indirects(fsname));
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "snaps" -> { snapshot1, snapshot2 }
|
|
* (optional) "props" -> { prop -> value (string) }
|
|
* }
|
|
*
|
|
* outnvl: snapshot -> error code (int32)
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_snapshot[] = {
|
|
{"snaps", DATA_TYPE_NVLIST, 0},
|
|
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
nvlist_t *snaps;
|
|
nvlist_t *props = NULL;
|
|
int error, poollen;
|
|
nvpair_t *pair;
|
|
|
|
(void) nvlist_lookup_nvlist(innvl, "props", &props);
|
|
if ((error = zfs_check_userprops(poolname, props)) != 0)
|
|
return (error);
|
|
|
|
if (!nvlist_empty(props) &&
|
|
zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS))
|
|
return (SET_ERROR(ENOTSUP));
|
|
|
|
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
|
|
poollen = strlen(poolname);
|
|
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
|
|
pair = nvlist_next_nvpair(snaps, pair)) {
|
|
const char *name = nvpair_name(pair);
|
|
const char *cp = strchr(name, '@');
|
|
|
|
/*
|
|
* The snap name must contain an @, and the part after it must
|
|
* contain only valid characters.
|
|
*/
|
|
if (cp == NULL ||
|
|
zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
/*
|
|
* The snap must be in the specified pool.
|
|
*/
|
|
if (strncmp(name, poolname, poollen) != 0 ||
|
|
(name[poollen] != '/' && name[poollen] != '@'))
|
|
return (SET_ERROR(EXDEV));
|
|
|
|
/* This must be the only snap of this fs. */
|
|
for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair);
|
|
pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) {
|
|
if (strncmp(name, nvpair_name(pair2), cp - name + 1)
|
|
== 0) {
|
|
return (SET_ERROR(EXDEV));
|
|
}
|
|
}
|
|
}
|
|
|
|
error = dsl_dataset_snapshot(snaps, props, outnvl);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl: "message" -> string
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_log_history[] = {
|
|
{"message", DATA_TYPE_STRING, 0},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
char *message;
|
|
spa_t *spa;
|
|
int error;
|
|
char *poolname;
|
|
|
|
/*
|
|
* The poolname in the ioctl is not set, we get it from the TSD,
|
|
* which was set at the end of the last successful ioctl that allows
|
|
* logging. The secpolicy func already checked that it is set.
|
|
* Only one log ioctl is allowed after each successful ioctl, so
|
|
* we clear the TSD here.
|
|
*/
|
|
poolname = tsd_get(zfs_allow_log_key);
|
|
if (poolname == NULL)
|
|
return (SET_ERROR(EINVAL));
|
|
(void) tsd_set(zfs_allow_log_key, NULL);
|
|
error = spa_open(poolname, &spa, FTAG);
|
|
strfree(poolname);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
message = fnvlist_lookup_string(innvl, "message");
|
|
|
|
if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
|
|
error = spa_history_log(spa, message);
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* The dp_config_rwlock must not be held when calling this, because the
|
|
* unmount may need to write out data.
|
|
*
|
|
* This function is best-effort. Callers must deal gracefully if it
|
|
* remains mounted (or is remounted after this call).
|
|
*
|
|
* Returns 0 if the argument is not a snapshot, or it is not currently a
|
|
* filesystem, or we were able to unmount it. Returns error code otherwise.
|
|
*/
|
|
void
|
|
zfs_unmount_snap(const char *snapname)
|
|
{
|
|
if (strchr(snapname, '@') == NULL)
|
|
return;
|
|
|
|
(void) zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_unmount_snap_cb(const char *snapname, void *arg)
|
|
{
|
|
zfs_unmount_snap(snapname);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* When a clone is destroyed, its origin may also need to be destroyed,
|
|
* in which case it must be unmounted. This routine will do that unmount
|
|
* if necessary.
|
|
*/
|
|
void
|
|
zfs_destroy_unmount_origin(const char *fsname)
|
|
{
|
|
int error;
|
|
objset_t *os;
|
|
dsl_dataset_t *ds;
|
|
|
|
error = dmu_objset_hold(fsname, FTAG, &os);
|
|
if (error != 0)
|
|
return;
|
|
ds = dmu_objset_ds(os);
|
|
if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) {
|
|
char originname[ZFS_MAX_DATASET_NAME_LEN];
|
|
dsl_dataset_name(ds->ds_prev, originname);
|
|
dmu_objset_rele(os, FTAG);
|
|
zfs_unmount_snap(originname);
|
|
} else {
|
|
dmu_objset_rele(os, FTAG);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "snaps" -> { snapshot1, snapshot2 }
|
|
* (optional boolean) "defer"
|
|
* }
|
|
*
|
|
* outnvl: snapshot -> error code (int32)
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_destroy_snaps[] = {
|
|
{"snaps", DATA_TYPE_NVLIST, 0},
|
|
{"defer", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
nvlist_t *snaps;
|
|
nvpair_t *pair;
|
|
boolean_t defer;
|
|
|
|
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
|
|
defer = nvlist_exists(innvl, "defer");
|
|
|
|
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
|
|
pair = nvlist_next_nvpair(snaps, pair)) {
|
|
zfs_unmount_snap(nvpair_name(pair));
|
|
}
|
|
|
|
return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl));
|
|
}
|
|
|
|
/*
|
|
* Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
|
|
* All bookmarks must be in the same pool.
|
|
*
|
|
* innvl: {
|
|
* bookmark1 -> snapshot1, bookmark2 -> snapshot2
|
|
* }
|
|
*
|
|
* outnvl: bookmark -> error code (int32)
|
|
*
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_bookmark[] = {
|
|
{"<bookmark>...", DATA_TYPE_STRING, ZK_WILDCARDLIST},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
|
|
pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
|
|
char *snap_name;
|
|
|
|
/*
|
|
* Verify the snapshot argument.
|
|
*/
|
|
if (nvpair_value_string(pair, &snap_name) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
|
|
/* Verify that the keys (bookmarks) are unique */
|
|
for (nvpair_t *pair2 = nvlist_next_nvpair(innvl, pair);
|
|
pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) {
|
|
if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0)
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
}
|
|
|
|
return (dsl_bookmark_create(innvl, outnvl));
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* property 1, property 2, ...
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* bookmark name 1 -> { property 1, property 2, ... },
|
|
* bookmark name 2 -> { property 1, property 2, ... }
|
|
* }
|
|
*
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_get_bookmarks[] = {
|
|
{"<property>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST | ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
return (dsl_get_bookmarks(fsname, innvl, outnvl));
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* bookmark name 1, bookmark name 2
|
|
* }
|
|
*
|
|
* outnvl: bookmark -> error code (int32)
|
|
*
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_destroy_bookmarks[] = {
|
|
{"<bookmark>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl,
|
|
nvlist_t *outnvl)
|
|
{
|
|
int error, poollen;
|
|
|
|
poollen = strlen(poolname);
|
|
for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
|
|
pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
|
|
const char *name = nvpair_name(pair);
|
|
const char *cp = strchr(name, '#');
|
|
|
|
/*
|
|
* The bookmark name must contain an #, and the part after it
|
|
* must contain only valid characters.
|
|
*/
|
|
if (cp == NULL ||
|
|
zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
/*
|
|
* The bookmark must be in the specified pool.
|
|
*/
|
|
if (strncmp(name, poolname, poollen) != 0 ||
|
|
(name[poollen] != '/' && name[poollen] != '#'))
|
|
return (SET_ERROR(EXDEV));
|
|
}
|
|
|
|
error = dsl_bookmark_destroy(innvl, outnvl);
|
|
return (error);
|
|
}
|
|
|
|
static const zfs_ioc_key_t zfs_keys_channel_program[] = {
|
|
{"program", DATA_TYPE_STRING, 0},
|
|
{"arg", DATA_TYPE_ANY, 0},
|
|
{"sync", DATA_TYPE_BOOLEAN_VALUE, ZK_OPTIONAL},
|
|
{"instrlimit", DATA_TYPE_UINT64, ZK_OPTIONAL},
|
|
{"memlimit", DATA_TYPE_UINT64, ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl,
|
|
nvlist_t *outnvl)
|
|
{
|
|
char *program;
|
|
uint64_t instrlimit, memlimit;
|
|
boolean_t sync_flag;
|
|
nvpair_t *nvarg = NULL;
|
|
|
|
program = fnvlist_lookup_string(innvl, ZCP_ARG_PROGRAM);
|
|
if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) {
|
|
sync_flag = B_TRUE;
|
|
}
|
|
if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_INSTRLIMIT, &instrlimit)) {
|
|
instrlimit = ZCP_DEFAULT_INSTRLIMIT;
|
|
}
|
|
if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_MEMLIMIT, &memlimit)) {
|
|
memlimit = ZCP_DEFAULT_MEMLIMIT;
|
|
}
|
|
nvarg = fnvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST);
|
|
|
|
if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit)
|
|
return (EINVAL);
|
|
if (memlimit == 0 || memlimit > zfs_lua_max_memlimit)
|
|
return (EINVAL);
|
|
|
|
return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit,
|
|
nvarg, outnvl));
|
|
}
|
|
|
|
/*
|
|
* innvl: unused
|
|
* outnvl: empty
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_pool_checkpoint[] = {
|
|
/* no nvl keys */
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_pool_checkpoint(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
return (spa_checkpoint(poolname));
|
|
}
|
|
|
|
/*
|
|
* innvl: unused
|
|
* outnvl: empty
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_pool_discard_checkpoint[] = {
|
|
/* no nvl keys */
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_pool_discard_checkpoint(const char *poolname, nvlist_t *innvl,
|
|
nvlist_t *outnvl)
|
|
{
|
|
return (spa_checkpoint_discard(poolname));
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of dataset to destroy
|
|
* zc_defer_destroy mark for deferred destroy
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_destroy(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
dmu_objset_type_t ost;
|
|
int err;
|
|
|
|
err = dmu_objset_hold(zc->zc_name, FTAG, &os);
|
|
if (err != 0)
|
|
return (err);
|
|
ost = dmu_objset_type(os);
|
|
dmu_objset_rele(os, FTAG);
|
|
|
|
if (ost == DMU_OST_ZFS)
|
|
zfs_unmount_snap(zc->zc_name);
|
|
|
|
if (strchr(zc->zc_name, '@')) {
|
|
err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy);
|
|
} else {
|
|
err = dsl_destroy_head(zc->zc_name);
|
|
if (err == EEXIST) {
|
|
/*
|
|
* It is possible that the given DS may have
|
|
* hidden child (%recv) datasets - "leftovers"
|
|
* resulting from the previously interrupted
|
|
* 'zfs receive'.
|
|
*
|
|
* 6 extra bytes for /%recv
|
|
*/
|
|
char namebuf[ZFS_MAX_DATASET_NAME_LEN + 6];
|
|
|
|
if (snprintf(namebuf, sizeof (namebuf), "%s/%s",
|
|
zc->zc_name, recv_clone_name) >=
|
|
sizeof (namebuf))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
/*
|
|
* Try to remove the hidden child (%recv) and after
|
|
* that try to remove the target dataset.
|
|
* If the hidden child (%recv) does not exist
|
|
* the original error (EEXIST) will be returned
|
|
*/
|
|
err = dsl_destroy_head(namebuf);
|
|
if (err == 0)
|
|
err = dsl_destroy_head(zc->zc_name);
|
|
else if (err == ENOENT)
|
|
err = SET_ERROR(EEXIST);
|
|
}
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "initialize_command" -> POOL_INITIALIZE_{CANCEL|DO|SUSPEND} (uint64)
|
|
* "initialize_vdevs": { -> guids to initialize (nvlist)
|
|
* "vdev_path_1": vdev_guid_1, (uint64),
|
|
* "vdev_path_2": vdev_guid_2, (uint64),
|
|
* ...
|
|
* },
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* "initialize_vdevs": { -> initialization errors (nvlist)
|
|
* "vdev_path_1": errno, see function body for possible errnos (uint64)
|
|
* "vdev_path_2": errno, ... (uint64)
|
|
* ...
|
|
* }
|
|
* }
|
|
*
|
|
* EINVAL is returned for an unknown commands or if any of the provided vdev
|
|
* guids have be specified with a type other than uint64.
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_pool_initialize[] = {
|
|
{ZPOOL_INITIALIZE_COMMAND, DATA_TYPE_UINT64, 0},
|
|
{ZPOOL_INITIALIZE_VDEVS, DATA_TYPE_NVLIST, 0}
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_pool_initialize(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
uint64_t cmd_type;
|
|
if (nvlist_lookup_uint64(innvl, ZPOOL_INITIALIZE_COMMAND,
|
|
&cmd_type) != 0) {
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
if (!(cmd_type == POOL_INITIALIZE_CANCEL ||
|
|
cmd_type == POOL_INITIALIZE_DO ||
|
|
cmd_type == POOL_INITIALIZE_SUSPEND)) {
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
nvlist_t *vdev_guids;
|
|
if (nvlist_lookup_nvlist(innvl, ZPOOL_INITIALIZE_VDEVS,
|
|
&vdev_guids) != 0) {
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
for (nvpair_t *pair = nvlist_next_nvpair(vdev_guids, NULL);
|
|
pair != NULL; pair = nvlist_next_nvpair(vdev_guids, pair)) {
|
|
uint64_t vdev_guid;
|
|
if (nvpair_value_uint64(pair, &vdev_guid) != 0) {
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
}
|
|
|
|
spa_t *spa;
|
|
int error = spa_open(poolname, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
nvlist_t *vdev_errlist = fnvlist_alloc();
|
|
int total_errors = spa_vdev_initialize(spa, vdev_guids, cmd_type,
|
|
vdev_errlist);
|
|
|
|
if (fnvlist_size(vdev_errlist) > 0) {
|
|
fnvlist_add_nvlist(outnvl, ZPOOL_INITIALIZE_VDEVS,
|
|
vdev_errlist);
|
|
}
|
|
fnvlist_free(vdev_errlist);
|
|
|
|
spa_close(spa, FTAG);
|
|
return (total_errors > 0 ? EINVAL : 0);
|
|
}
|
|
|
|
/*
|
|
* fsname is name of dataset to rollback (to most recent snapshot)
|
|
*
|
|
* innvl may contain name of expected target snapshot
|
|
*
|
|
* outnvl: "target" -> name of most recent snapshot
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_rollback[] = {
|
|
{"target", DATA_TYPE_STRING, ZK_OPTIONAL},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
zfsvfs_t *zfsvfs;
|
|
zvol_state_t *zv;
|
|
char *target = NULL;
|
|
int error;
|
|
|
|
(void) nvlist_lookup_string(innvl, "target", &target);
|
|
if (target != NULL) {
|
|
const char *cp = strchr(target, '@');
|
|
|
|
/*
|
|
* The snap name must contain an @, and the part after it must
|
|
* contain only valid characters.
|
|
*/
|
|
if (cp == NULL ||
|
|
zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
if (getzfsvfs(fsname, &zfsvfs) == 0) {
|
|
dsl_dataset_t *ds;
|
|
|
|
ds = dmu_objset_ds(zfsvfs->z_os);
|
|
error = zfs_suspend_fs(zfsvfs);
|
|
if (error == 0) {
|
|
int resume_err;
|
|
|
|
error = dsl_dataset_rollback(fsname, target, zfsvfs,
|
|
outnvl);
|
|
resume_err = zfs_resume_fs(zfsvfs, ds);
|
|
error = error ? error : resume_err;
|
|
}
|
|
deactivate_super(zfsvfs->z_sb);
|
|
} else if ((zv = zvol_suspend(fsname)) != NULL) {
|
|
error = dsl_dataset_rollback(fsname, target, zvol_tag(zv),
|
|
outnvl);
|
|
zvol_resume(zv);
|
|
} else {
|
|
error = dsl_dataset_rollback(fsname, target, NULL, outnvl);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
recursive_unmount(const char *fsname, void *arg)
|
|
{
|
|
const char *snapname = arg;
|
|
char *fullname;
|
|
|
|
fullname = kmem_asprintf("%s@%s", fsname, snapname);
|
|
zfs_unmount_snap(fullname);
|
|
strfree(fullname);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name old name of dataset
|
|
* zc_value new name of dataset
|
|
* zc_cookie recursive flag (only valid for snapshots)
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_rename(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
dmu_objset_type_t ost;
|
|
boolean_t recursive = zc->zc_cookie & 1;
|
|
char *at;
|
|
int err;
|
|
|
|
/* "zfs rename" from and to ...%recv datasets should both fail */
|
|
zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
|
|
zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
|
|
if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 ||
|
|
dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
|
|
strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
err = dmu_objset_hold(zc->zc_name, FTAG, &os);
|
|
if (err != 0)
|
|
return (err);
|
|
ost = dmu_objset_type(os);
|
|
dmu_objset_rele(os, FTAG);
|
|
|
|
at = strchr(zc->zc_name, '@');
|
|
if (at != NULL) {
|
|
/* snaps must be in same fs */
|
|
int error;
|
|
|
|
if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1))
|
|
return (SET_ERROR(EXDEV));
|
|
*at = '\0';
|
|
if (ost == DMU_OST_ZFS) {
|
|
error = dmu_objset_find(zc->zc_name,
|
|
recursive_unmount, at + 1,
|
|
recursive ? DS_FIND_CHILDREN : 0);
|
|
if (error != 0) {
|
|
*at = '@';
|
|
return (error);
|
|
}
|
|
}
|
|
error = dsl_dataset_rename_snapshot(zc->zc_name,
|
|
at + 1, strchr(zc->zc_value, '@') + 1, recursive);
|
|
*at = '@';
|
|
|
|
return (error);
|
|
} else {
|
|
return (dsl_dir_rename(zc->zc_name, zc->zc_value));
|
|
}
|
|
}
|
|
|
|
static int
|
|
zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
|
|
{
|
|
const char *propname = nvpair_name(pair);
|
|
boolean_t issnap = (strchr(dsname, '@') != NULL);
|
|
zfs_prop_t prop = zfs_name_to_prop(propname);
|
|
uint64_t intval;
|
|
int err;
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
if (zfs_prop_user(propname)) {
|
|
if ((err = zfs_secpolicy_write_perms(dsname,
|
|
ZFS_DELEG_PERM_USERPROP, cr)))
|
|
return (err);
|
|
return (0);
|
|
}
|
|
|
|
if (!issnap && zfs_prop_userquota(propname)) {
|
|
const char *perm = NULL;
|
|
const char *uq_prefix =
|
|
zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA];
|
|
const char *gq_prefix =
|
|
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA];
|
|
const char *uiq_prefix =
|
|
zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA];
|
|
const char *giq_prefix =
|
|
zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA];
|
|
const char *pq_prefix =
|
|
zfs_userquota_prop_prefixes[ZFS_PROP_PROJECTQUOTA];
|
|
const char *piq_prefix = zfs_userquota_prop_prefixes[\
|
|
ZFS_PROP_PROJECTOBJQUOTA];
|
|
|
|
if (strncmp(propname, uq_prefix,
|
|
strlen(uq_prefix)) == 0) {
|
|
perm = ZFS_DELEG_PERM_USERQUOTA;
|
|
} else if (strncmp(propname, uiq_prefix,
|
|
strlen(uiq_prefix)) == 0) {
|
|
perm = ZFS_DELEG_PERM_USEROBJQUOTA;
|
|
} else if (strncmp(propname, gq_prefix,
|
|
strlen(gq_prefix)) == 0) {
|
|
perm = ZFS_DELEG_PERM_GROUPQUOTA;
|
|
} else if (strncmp(propname, giq_prefix,
|
|
strlen(giq_prefix)) == 0) {
|
|
perm = ZFS_DELEG_PERM_GROUPOBJQUOTA;
|
|
} else if (strncmp(propname, pq_prefix,
|
|
strlen(pq_prefix)) == 0) {
|
|
perm = ZFS_DELEG_PERM_PROJECTQUOTA;
|
|
} else if (strncmp(propname, piq_prefix,
|
|
strlen(piq_prefix)) == 0) {
|
|
perm = ZFS_DELEG_PERM_PROJECTOBJQUOTA;
|
|
} else {
|
|
/* {USER|GROUP|PROJECT}USED are read-only */
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
if ((err = zfs_secpolicy_write_perms(dsname, perm, cr)))
|
|
return (err);
|
|
return (0);
|
|
}
|
|
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
if (issnap)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
|
|
/*
|
|
* dsl_prop_get_all_impl() returns properties in this
|
|
* format.
|
|
*/
|
|
nvlist_t *attrs;
|
|
VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
|
|
VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
|
|
&pair) == 0);
|
|
}
|
|
|
|
/*
|
|
* Check that this value is valid for this pool version
|
|
*/
|
|
switch (prop) {
|
|
case ZFS_PROP_COMPRESSION:
|
|
/*
|
|
* If the user specified gzip compression, make sure
|
|
* the SPA supports it. We ignore any errors here since
|
|
* we'll catch them later.
|
|
*/
|
|
if (nvpair_value_uint64(pair, &intval) == 0) {
|
|
if (intval >= ZIO_COMPRESS_GZIP_1 &&
|
|
intval <= ZIO_COMPRESS_GZIP_9 &&
|
|
zfs_earlier_version(dsname,
|
|
SPA_VERSION_GZIP_COMPRESSION)) {
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
|
|
if (intval == ZIO_COMPRESS_ZLE &&
|
|
zfs_earlier_version(dsname,
|
|
SPA_VERSION_ZLE_COMPRESSION))
|
|
return (SET_ERROR(ENOTSUP));
|
|
|
|
if (intval == ZIO_COMPRESS_LZ4) {
|
|
spa_t *spa;
|
|
|
|
if ((err = spa_open(dsname, &spa, FTAG)) != 0)
|
|
return (err);
|
|
|
|
if (!spa_feature_is_enabled(spa,
|
|
SPA_FEATURE_LZ4_COMPRESS)) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
spa_close(spa, FTAG);
|
|
}
|
|
|
|
/*
|
|
* If this is a bootable dataset then
|
|
* verify that the compression algorithm
|
|
* is supported for booting. We must return
|
|
* something other than ENOTSUP since it
|
|
* implies a downrev pool version.
|
|
*/
|
|
if (zfs_is_bootfs(dsname) &&
|
|
!BOOTFS_COMPRESS_VALID(intval)) {
|
|
return (SET_ERROR(ERANGE));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ZFS_PROP_COPIES:
|
|
if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS))
|
|
return (SET_ERROR(ENOTSUP));
|
|
break;
|
|
|
|
case ZFS_PROP_VOLBLOCKSIZE:
|
|
case ZFS_PROP_RECORDSIZE:
|
|
/* Record sizes above 128k need the feature to be enabled */
|
|
if (nvpair_value_uint64(pair, &intval) == 0 &&
|
|
intval > SPA_OLD_MAXBLOCKSIZE) {
|
|
spa_t *spa;
|
|
|
|
/*
|
|
* We don't allow setting the property above 1MB,
|
|
* unless the tunable has been changed.
|
|
*/
|
|
if (intval > zfs_max_recordsize ||
|
|
intval > SPA_MAXBLOCKSIZE)
|
|
return (SET_ERROR(ERANGE));
|
|
|
|
if ((err = spa_open(dsname, &spa, FTAG)) != 0)
|
|
return (err);
|
|
|
|
if (!spa_feature_is_enabled(spa,
|
|
SPA_FEATURE_LARGE_BLOCKS)) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
spa_close(spa, FTAG);
|
|
}
|
|
break;
|
|
|
|
case ZFS_PROP_DNODESIZE:
|
|
/* Dnode sizes above 512 need the feature to be enabled */
|
|
if (nvpair_value_uint64(pair, &intval) == 0 &&
|
|
intval != ZFS_DNSIZE_LEGACY) {
|
|
spa_t *spa;
|
|
|
|
/*
|
|
* If this is a bootable dataset then
|
|
* we don't allow large (>512B) dnodes,
|
|
* because GRUB doesn't support them.
|
|
*/
|
|
if (zfs_is_bootfs(dsname) &&
|
|
intval != ZFS_DNSIZE_LEGACY) {
|
|
return (SET_ERROR(EDOM));
|
|
}
|
|
|
|
if ((err = spa_open(dsname, &spa, FTAG)) != 0)
|
|
return (err);
|
|
|
|
if (!spa_feature_is_enabled(spa,
|
|
SPA_FEATURE_LARGE_DNODE)) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
spa_close(spa, FTAG);
|
|
}
|
|
break;
|
|
|
|
case ZFS_PROP_SPECIAL_SMALL_BLOCKS:
|
|
/*
|
|
* This property could require the allocation classes
|
|
* feature to be active for setting, however we allow
|
|
* it so that tests of settable properties succeed.
|
|
* The CLI will issue a warning in this case.
|
|
*/
|
|
break;
|
|
|
|
case ZFS_PROP_SHARESMB:
|
|
if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
|
|
return (SET_ERROR(ENOTSUP));
|
|
break;
|
|
|
|
case ZFS_PROP_ACLINHERIT:
|
|
if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
|
|
nvpair_value_uint64(pair, &intval) == 0) {
|
|
if (intval == ZFS_ACL_PASSTHROUGH_X &&
|
|
zfs_earlier_version(dsname,
|
|
SPA_VERSION_PASSTHROUGH_X))
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
break;
|
|
case ZFS_PROP_CHECKSUM:
|
|
case ZFS_PROP_DEDUP:
|
|
{
|
|
spa_feature_t feature;
|
|
spa_t *spa;
|
|
int err;
|
|
|
|
/* dedup feature version checks */
|
|
if (prop == ZFS_PROP_DEDUP &&
|
|
zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
|
|
return (SET_ERROR(ENOTSUP));
|
|
|
|
if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
|
|
nvpair_value_uint64(pair, &intval) == 0) {
|
|
/* check prop value is enabled in features */
|
|
feature = zio_checksum_to_feature(
|
|
intval & ZIO_CHECKSUM_MASK);
|
|
if (feature == SPA_FEATURE_NONE)
|
|
break;
|
|
|
|
if ((err = spa_open(dsname, &spa, FTAG)) != 0)
|
|
return (err);
|
|
|
|
if (!spa_feature_is_enabled(spa, feature)) {
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
spa_close(spa, FTAG);
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (zfs_secpolicy_setprop(dsname, prop, pair, CRED()));
|
|
}
|
|
|
|
/*
|
|
* Removes properties from the given props list that fail permission checks
|
|
* needed to clear them and to restore them in case of a receive error. For each
|
|
* property, make sure we have both set and inherit permissions.
|
|
*
|
|
* Returns the first error encountered if any permission checks fail. If the
|
|
* caller provides a non-NULL errlist, it also gives the complete list of names
|
|
* of all the properties that failed a permission check along with the
|
|
* corresponding error numbers. The caller is responsible for freeing the
|
|
* returned errlist.
|
|
*
|
|
* If every property checks out successfully, zero is returned and the list
|
|
* pointed at by errlist is NULL.
|
|
*/
|
|
static int
|
|
zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist)
|
|
{
|
|
zfs_cmd_t *zc;
|
|
nvpair_t *pair, *next_pair;
|
|
nvlist_t *errors;
|
|
int err, rv = 0;
|
|
|
|
if (props == NULL)
|
|
return (0);
|
|
|
|
VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
|
|
zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
|
|
(void) strlcpy(zc->zc_name, dataset, sizeof (zc->zc_name));
|
|
pair = nvlist_next_nvpair(props, NULL);
|
|
while (pair != NULL) {
|
|
next_pair = nvlist_next_nvpair(props, pair);
|
|
|
|
(void) strlcpy(zc->zc_value, nvpair_name(pair),
|
|
sizeof (zc->zc_value));
|
|
if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 ||
|
|
(err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) {
|
|
VERIFY(nvlist_remove_nvpair(props, pair) == 0);
|
|
VERIFY(nvlist_add_int32(errors,
|
|
zc->zc_value, err) == 0);
|
|
}
|
|
pair = next_pair;
|
|
}
|
|
kmem_free(zc, sizeof (zfs_cmd_t));
|
|
|
|
if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
|
|
nvlist_free(errors);
|
|
errors = NULL;
|
|
} else {
|
|
VERIFY(nvpair_value_int32(pair, &rv) == 0);
|
|
}
|
|
|
|
if (errlist == NULL)
|
|
nvlist_free(errors);
|
|
else
|
|
*errlist = errors;
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static boolean_t
|
|
propval_equals(nvpair_t *p1, nvpair_t *p2)
|
|
{
|
|
if (nvpair_type(p1) == DATA_TYPE_NVLIST) {
|
|
/* dsl_prop_get_all_impl() format */
|
|
nvlist_t *attrs;
|
|
VERIFY(nvpair_value_nvlist(p1, &attrs) == 0);
|
|
VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
|
|
&p1) == 0);
|
|
}
|
|
|
|
if (nvpair_type(p2) == DATA_TYPE_NVLIST) {
|
|
nvlist_t *attrs;
|
|
VERIFY(nvpair_value_nvlist(p2, &attrs) == 0);
|
|
VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
|
|
&p2) == 0);
|
|
}
|
|
|
|
if (nvpair_type(p1) != nvpair_type(p2))
|
|
return (B_FALSE);
|
|
|
|
if (nvpair_type(p1) == DATA_TYPE_STRING) {
|
|
char *valstr1, *valstr2;
|
|
|
|
VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0);
|
|
VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0);
|
|
return (strcmp(valstr1, valstr2) == 0);
|
|
} else {
|
|
uint64_t intval1, intval2;
|
|
|
|
VERIFY(nvpair_value_uint64(p1, &intval1) == 0);
|
|
VERIFY(nvpair_value_uint64(p2, &intval2) == 0);
|
|
return (intval1 == intval2);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Remove properties from props if they are not going to change (as determined
|
|
* by comparison with origprops). Remove them from origprops as well, since we
|
|
* do not need to clear or restore properties that won't change.
|
|
*/
|
|
static void
|
|
props_reduce(nvlist_t *props, nvlist_t *origprops)
|
|
{
|
|
nvpair_t *pair, *next_pair;
|
|
|
|
if (origprops == NULL)
|
|
return; /* all props need to be received */
|
|
|
|
pair = nvlist_next_nvpair(props, NULL);
|
|
while (pair != NULL) {
|
|
const char *propname = nvpair_name(pair);
|
|
nvpair_t *match;
|
|
|
|
next_pair = nvlist_next_nvpair(props, pair);
|
|
|
|
if ((nvlist_lookup_nvpair(origprops, propname,
|
|
&match) != 0) || !propval_equals(pair, match))
|
|
goto next; /* need to set received value */
|
|
|
|
/* don't clear the existing received value */
|
|
(void) nvlist_remove_nvpair(origprops, match);
|
|
/* don't bother receiving the property */
|
|
(void) nvlist_remove_nvpair(props, pair);
|
|
next:
|
|
pair = next_pair;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Extract properties that cannot be set PRIOR to the receipt of a dataset.
|
|
* For example, refquota cannot be set until after the receipt of a dataset,
|
|
* because in replication streams, an older/earlier snapshot may exceed the
|
|
* refquota. We want to receive the older/earlier snapshot, but setting
|
|
* refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent
|
|
* the older/earlier snapshot from being received (with EDQUOT).
|
|
*
|
|
* The ZFS test "zfs_receive_011_pos" demonstrates such a scenario.
|
|
*
|
|
* libzfs will need to be judicious handling errors encountered by props
|
|
* extracted by this function.
|
|
*/
|
|
static nvlist_t *
|
|
extract_delay_props(nvlist_t *props)
|
|
{
|
|
nvlist_t *delayprops;
|
|
nvpair_t *nvp, *tmp;
|
|
static const zfs_prop_t delayable[] = {
|
|
ZFS_PROP_REFQUOTA,
|
|
ZFS_PROP_KEYLOCATION,
|
|
0
|
|
};
|
|
int i;
|
|
|
|
VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
|
|
for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL;
|
|
nvp = nvlist_next_nvpair(props, nvp)) {
|
|
/*
|
|
* strcmp() is safe because zfs_prop_to_name() always returns
|
|
* a bounded string.
|
|
*/
|
|
for (i = 0; delayable[i] != 0; i++) {
|
|
if (strcmp(zfs_prop_to_name(delayable[i]),
|
|
nvpair_name(nvp)) == 0) {
|
|
break;
|
|
}
|
|
}
|
|
if (delayable[i] != 0) {
|
|
tmp = nvlist_prev_nvpair(props, nvp);
|
|
VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0);
|
|
VERIFY(nvlist_remove_nvpair(props, nvp) == 0);
|
|
nvp = tmp;
|
|
}
|
|
}
|
|
|
|
if (nvlist_empty(delayprops)) {
|
|
nvlist_free(delayprops);
|
|
delayprops = NULL;
|
|
}
|
|
return (delayprops);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static boolean_t zfs_ioc_recv_inject_err;
|
|
#endif
|
|
|
|
/*
|
|
* nvlist 'errors' is always allocated. It will contain descriptions of
|
|
* encountered errors, if any. It's the callers responsibility to free.
|
|
*/
|
|
static int
|
|
zfs_ioc_recv_impl(char *tofs, char *tosnap, char *origin, nvlist_t *recvprops,
|
|
nvlist_t *localprops, nvlist_t *hidden_args, boolean_t force,
|
|
boolean_t resumable, int input_fd, dmu_replay_record_t *begin_record,
|
|
int cleanup_fd, uint64_t *read_bytes, uint64_t *errflags,
|
|
uint64_t *action_handle, nvlist_t **errors)
|
|
{
|
|
dmu_recv_cookie_t drc;
|
|
int error = 0;
|
|
int props_error = 0;
|
|
offset_t off;
|
|
nvlist_t *local_delayprops = NULL;
|
|
nvlist_t *recv_delayprops = NULL;
|
|
nvlist_t *origprops = NULL; /* existing properties */
|
|
nvlist_t *origrecvd = NULL; /* existing received properties */
|
|
boolean_t first_recvd_props = B_FALSE;
|
|
file_t *input_fp;
|
|
|
|
*read_bytes = 0;
|
|
*errflags = 0;
|
|
*errors = fnvlist_alloc();
|
|
|
|
input_fp = getf(input_fd);
|
|
if (input_fp == NULL)
|
|
return (SET_ERROR(EBADF));
|
|
|
|
error = dmu_recv_begin(tofs, tosnap, begin_record, force,
|
|
resumable, localprops, hidden_args, origin, &drc);
|
|
if (error != 0)
|
|
goto out;
|
|
|
|
/*
|
|
* Set properties before we receive the stream so that they are applied
|
|
* to the new data. Note that we must call dmu_recv_stream() if
|
|
* dmu_recv_begin() succeeds.
|
|
*/
|
|
if (recvprops != NULL && !drc.drc_newfs) {
|
|
if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >=
|
|
SPA_VERSION_RECVD_PROPS &&
|
|
!dsl_prop_get_hasrecvd(tofs))
|
|
first_recvd_props = B_TRUE;
|
|
|
|
/*
|
|
* If new received properties are supplied, they are to
|
|
* completely replace the existing received properties,
|
|
* so stash away the existing ones.
|
|
*/
|
|
if (dsl_prop_get_received(tofs, &origrecvd) == 0) {
|
|
nvlist_t *errlist = NULL;
|
|
/*
|
|
* Don't bother writing a property if its value won't
|
|
* change (and avoid the unnecessary security checks).
|
|
*
|
|
* The first receive after SPA_VERSION_RECVD_PROPS is a
|
|
* special case where we blow away all local properties
|
|
* regardless.
|
|
*/
|
|
if (!first_recvd_props)
|
|
props_reduce(recvprops, origrecvd);
|
|
if (zfs_check_clearable(tofs, origrecvd, &errlist) != 0)
|
|
(void) nvlist_merge(*errors, errlist, 0);
|
|
nvlist_free(errlist);
|
|
|
|
if (clear_received_props(tofs, origrecvd,
|
|
first_recvd_props ? NULL : recvprops) != 0)
|
|
*errflags |= ZPROP_ERR_NOCLEAR;
|
|
} else {
|
|
*errflags |= ZPROP_ERR_NOCLEAR;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Stash away existing properties so we can restore them on error unless
|
|
* we're doing the first receive after SPA_VERSION_RECVD_PROPS, in which
|
|
* case "origrecvd" will take care of that.
|
|
*/
|
|
if (localprops != NULL && !drc.drc_newfs && !first_recvd_props) {
|
|
objset_t *os;
|
|
if (dmu_objset_hold(tofs, FTAG, &os) == 0) {
|
|
if (dsl_prop_get_all(os, &origprops) != 0) {
|
|
*errflags |= ZPROP_ERR_NOCLEAR;
|
|
}
|
|
dmu_objset_rele(os, FTAG);
|
|
} else {
|
|
*errflags |= ZPROP_ERR_NOCLEAR;
|
|
}
|
|
}
|
|
|
|
if (recvprops != NULL) {
|
|
props_error = dsl_prop_set_hasrecvd(tofs);
|
|
|
|
if (props_error == 0) {
|
|
recv_delayprops = extract_delay_props(recvprops);
|
|
(void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
|
|
recvprops, *errors);
|
|
}
|
|
}
|
|
|
|
if (localprops != NULL) {
|
|
nvlist_t *oprops = fnvlist_alloc();
|
|
nvlist_t *xprops = fnvlist_alloc();
|
|
nvpair_t *nvp = NULL;
|
|
|
|
while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) {
|
|
if (nvpair_type(nvp) == DATA_TYPE_BOOLEAN) {
|
|
/* -x property */
|
|
const char *name = nvpair_name(nvp);
|
|
zfs_prop_t prop = zfs_name_to_prop(name);
|
|
if (prop != ZPROP_INVAL) {
|
|
if (!zfs_prop_inheritable(prop))
|
|
continue;
|
|
} else if (!zfs_prop_user(name))
|
|
continue;
|
|
fnvlist_add_boolean(xprops, name);
|
|
} else {
|
|
/* -o property=value */
|
|
fnvlist_add_nvpair(oprops, nvp);
|
|
}
|
|
}
|
|
|
|
local_delayprops = extract_delay_props(oprops);
|
|
(void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL,
|
|
oprops, *errors);
|
|
(void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED,
|
|
xprops, *errors);
|
|
|
|
nvlist_free(oprops);
|
|
nvlist_free(xprops);
|
|
}
|
|
|
|
off = input_fp->f_offset;
|
|
error = dmu_recv_stream(&drc, input_fp->f_vnode, &off, cleanup_fd,
|
|
action_handle);
|
|
|
|
if (error == 0) {
|
|
zfsvfs_t *zfsvfs = NULL;
|
|
zvol_state_t *zv = NULL;
|
|
|
|
if (getzfsvfs(tofs, &zfsvfs) == 0) {
|
|
/* online recv */
|
|
dsl_dataset_t *ds;
|
|
int end_err;
|
|
|
|
ds = dmu_objset_ds(zfsvfs->z_os);
|
|
error = zfs_suspend_fs(zfsvfs);
|
|
/*
|
|
* If the suspend fails, then the recv_end will
|
|
* likely also fail, and clean up after itself.
|
|
*/
|
|
end_err = dmu_recv_end(&drc, zfsvfs);
|
|
if (error == 0)
|
|
error = zfs_resume_fs(zfsvfs, ds);
|
|
error = error ? error : end_err;
|
|
deactivate_super(zfsvfs->z_sb);
|
|
} else if ((zv = zvol_suspend(tofs)) != NULL) {
|
|
error = dmu_recv_end(&drc, zvol_tag(zv));
|
|
zvol_resume(zv);
|
|
} else {
|
|
error = dmu_recv_end(&drc, NULL);
|
|
}
|
|
|
|
/* Set delayed properties now, after we're done receiving. */
|
|
if (recv_delayprops != NULL && error == 0) {
|
|
(void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
|
|
recv_delayprops, *errors);
|
|
}
|
|
if (local_delayprops != NULL && error == 0) {
|
|
(void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL,
|
|
local_delayprops, *errors);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Merge delayed props back in with initial props, in case
|
|
* we're DEBUG and zfs_ioc_recv_inject_err is set (which means
|
|
* we have to make sure clear_received_props() includes
|
|
* the delayed properties).
|
|
*
|
|
* Since zfs_ioc_recv_inject_err is only in DEBUG kernels,
|
|
* using ASSERT() will be just like a VERIFY.
|
|
*/
|
|
if (recv_delayprops != NULL) {
|
|
ASSERT(nvlist_merge(recvprops, recv_delayprops, 0) == 0);
|
|
nvlist_free(recv_delayprops);
|
|
}
|
|
if (local_delayprops != NULL) {
|
|
ASSERT(nvlist_merge(localprops, local_delayprops, 0) == 0);
|
|
nvlist_free(local_delayprops);
|
|
}
|
|
|
|
*read_bytes = off - input_fp->f_offset;
|
|
if (VOP_SEEK(input_fp->f_vnode, input_fp->f_offset, &off, NULL) == 0)
|
|
input_fp->f_offset = off;
|
|
|
|
#ifdef DEBUG
|
|
if (zfs_ioc_recv_inject_err) {
|
|
zfs_ioc_recv_inject_err = B_FALSE;
|
|
error = 1;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* On error, restore the original props.
|
|
*/
|
|
if (error != 0 && recvprops != NULL && !drc.drc_newfs) {
|
|
if (clear_received_props(tofs, recvprops, NULL) != 0) {
|
|
/*
|
|
* We failed to clear the received properties.
|
|
* Since we may have left a $recvd value on the
|
|
* system, we can't clear the $hasrecvd flag.
|
|
*/
|
|
*errflags |= ZPROP_ERR_NORESTORE;
|
|
} else if (first_recvd_props) {
|
|
dsl_prop_unset_hasrecvd(tofs);
|
|
}
|
|
|
|
if (origrecvd == NULL && !drc.drc_newfs) {
|
|
/* We failed to stash the original properties. */
|
|
*errflags |= ZPROP_ERR_NORESTORE;
|
|
}
|
|
|
|
/*
|
|
* dsl_props_set() will not convert RECEIVED to LOCAL on or
|
|
* after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
|
|
* explicitly if we're restoring local properties cleared in the
|
|
* first new-style receive.
|
|
*/
|
|
if (origrecvd != NULL &&
|
|
zfs_set_prop_nvlist(tofs, (first_recvd_props ?
|
|
ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
|
|
origrecvd, NULL) != 0) {
|
|
/*
|
|
* We stashed the original properties but failed to
|
|
* restore them.
|
|
*/
|
|
*errflags |= ZPROP_ERR_NORESTORE;
|
|
}
|
|
}
|
|
if (error != 0 && localprops != NULL && !drc.drc_newfs &&
|
|
!first_recvd_props) {
|
|
nvlist_t *setprops;
|
|
nvlist_t *inheritprops;
|
|
nvpair_t *nvp;
|
|
|
|
if (origprops == NULL) {
|
|
/* We failed to stash the original properties. */
|
|
*errflags |= ZPROP_ERR_NORESTORE;
|
|
goto out;
|
|
}
|
|
|
|
/* Restore original props */
|
|
setprops = fnvlist_alloc();
|
|
inheritprops = fnvlist_alloc();
|
|
nvp = NULL;
|
|
while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) {
|
|
const char *name = nvpair_name(nvp);
|
|
const char *source;
|
|
nvlist_t *attrs;
|
|
|
|
if (!nvlist_exists(origprops, name)) {
|
|
/*
|
|
* Property was not present or was explicitly
|
|
* inherited before the receive, restore this.
|
|
*/
|
|
fnvlist_add_boolean(inheritprops, name);
|
|
continue;
|
|
}
|
|
attrs = fnvlist_lookup_nvlist(origprops, name);
|
|
source = fnvlist_lookup_string(attrs, ZPROP_SOURCE);
|
|
|
|
/* Skip received properties */
|
|
if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0)
|
|
continue;
|
|
|
|
if (strcmp(source, tofs) == 0) {
|
|
/* Property was locally set */
|
|
fnvlist_add_nvlist(setprops, name, attrs);
|
|
} else {
|
|
/* Property was implicitly inherited */
|
|
fnvlist_add_boolean(inheritprops, name);
|
|
}
|
|
}
|
|
|
|
if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, setprops,
|
|
NULL) != 0)
|
|
*errflags |= ZPROP_ERR_NORESTORE;
|
|
if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED, inheritprops,
|
|
NULL) != 0)
|
|
*errflags |= ZPROP_ERR_NORESTORE;
|
|
|
|
nvlist_free(setprops);
|
|
nvlist_free(inheritprops);
|
|
}
|
|
out:
|
|
releasef(input_fd);
|
|
nvlist_free(origrecvd);
|
|
nvlist_free(origprops);
|
|
|
|
if (error == 0)
|
|
error = props_error;
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of containing filesystem (unused)
|
|
* zc_nvlist_src{_size} nvlist of properties to apply
|
|
* zc_nvlist_conf{_size} nvlist of properties to exclude
|
|
* (DATA_TYPE_BOOLEAN) and override (everything else)
|
|
* zc_value name of snapshot to create
|
|
* zc_string name of clone origin (if DRR_FLAG_CLONE)
|
|
* zc_cookie file descriptor to recv from
|
|
* zc_begin_record the BEGIN record of the stream (not byteswapped)
|
|
* zc_guid force flag
|
|
* zc_cleanup_fd cleanup-on-exit file descriptor
|
|
* zc_action_handle handle for this guid/ds mapping (or zero on first call)
|
|
*
|
|
* outputs:
|
|
* zc_cookie number of bytes read
|
|
* zc_obj zprop_errflags_t
|
|
* zc_action_handle handle for this guid/ds mapping
|
|
* zc_nvlist_dst{_size} error for each unapplied received property
|
|
*/
|
|
static int
|
|
zfs_ioc_recv(zfs_cmd_t *zc)
|
|
{
|
|
dmu_replay_record_t begin_record;
|
|
nvlist_t *errors = NULL;
|
|
nvlist_t *recvdprops = NULL;
|
|
nvlist_t *localprops = NULL;
|
|
char *origin = NULL;
|
|
char *tosnap;
|
|
char tofs[ZFS_MAX_DATASET_NAME_LEN];
|
|
int error = 0;
|
|
|
|
if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
|
|
strchr(zc->zc_value, '@') == NULL ||
|
|
strchr(zc->zc_value, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
(void) strlcpy(tofs, zc->zc_value, sizeof (tofs));
|
|
tosnap = strchr(tofs, '@');
|
|
*tosnap++ = '\0';
|
|
|
|
if (zc->zc_nvlist_src != 0 &&
|
|
(error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &recvdprops)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_nvlist_conf != 0 &&
|
|
(error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
zc->zc_iflags, &localprops)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_string[0])
|
|
origin = zc->zc_string;
|
|
|
|
begin_record.drr_type = DRR_BEGIN;
|
|
begin_record.drr_payloadlen = 0;
|
|
begin_record.drr_u.drr_begin = zc->zc_begin_record;
|
|
|
|
error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvdprops, localprops,
|
|
NULL, zc->zc_guid, B_FALSE, zc->zc_cookie, &begin_record,
|
|
zc->zc_cleanup_fd, &zc->zc_cookie, &zc->zc_obj,
|
|
&zc->zc_action_handle, &errors);
|
|
nvlist_free(recvdprops);
|
|
nvlist_free(localprops);
|
|
|
|
/*
|
|
* Now that all props, initial and delayed, are set, report the prop
|
|
* errors to the caller.
|
|
*/
|
|
if (zc->zc_nvlist_dst_size != 0 && errors != NULL &&
|
|
(nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 ||
|
|
put_nvlist(zc, errors) != 0)) {
|
|
/*
|
|
* Caller made zc->zc_nvlist_dst less than the minimum expected
|
|
* size or supplied an invalid address.
|
|
*/
|
|
error = SET_ERROR(EINVAL);
|
|
}
|
|
|
|
nvlist_free(errors);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "snapname" -> full name of the snapshot to create
|
|
* (optional) "props" -> received properties to set (nvlist)
|
|
* (optional) "localprops" -> override and exclude properties (nvlist)
|
|
* (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE)
|
|
* "begin_record" -> non-byteswapped dmu_replay_record_t
|
|
* "input_fd" -> file descriptor to read stream from (int32)
|
|
* (optional) "force" -> force flag (value ignored)
|
|
* (optional) "resumable" -> resumable flag (value ignored)
|
|
* (optional) "cleanup_fd" -> cleanup-on-exit file descriptor
|
|
* (optional) "action_handle" -> handle for this guid/ds mapping
|
|
* (optional) "hidden_args" -> { "wkeydata" -> value }
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* "read_bytes" -> number of bytes read
|
|
* "error_flags" -> zprop_errflags_t
|
|
* "action_handle" -> handle for this guid/ds mapping
|
|
* "errors" -> error for each unapplied received property (nvlist)
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_recv_new[] = {
|
|
{"snapname", DATA_TYPE_STRING, 0},
|
|
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
{"localprops", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
{"origin", DATA_TYPE_STRING, ZK_OPTIONAL},
|
|
{"begin_record", DATA_TYPE_BYTE_ARRAY, 0},
|
|
{"input_fd", DATA_TYPE_INT32, 0},
|
|
{"force", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"resumable", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL},
|
|
{"action_handle", DATA_TYPE_UINT64, ZK_OPTIONAL},
|
|
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
dmu_replay_record_t *begin_record;
|
|
uint_t begin_record_size;
|
|
nvlist_t *errors = NULL;
|
|
nvlist_t *recvprops = NULL;
|
|
nvlist_t *localprops = NULL;
|
|
nvlist_t *hidden_args = NULL;
|
|
char *snapname;
|
|
char *origin = NULL;
|
|
char *tosnap;
|
|
char tofs[ZFS_MAX_DATASET_NAME_LEN];
|
|
boolean_t force;
|
|
boolean_t resumable;
|
|
uint64_t action_handle = 0;
|
|
uint64_t read_bytes = 0;
|
|
uint64_t errflags = 0;
|
|
int input_fd = -1;
|
|
int cleanup_fd = -1;
|
|
int error;
|
|
|
|
snapname = fnvlist_lookup_string(innvl, "snapname");
|
|
|
|
if (dataset_namecheck(snapname, NULL, NULL) != 0 ||
|
|
strchr(snapname, '@') == NULL ||
|
|
strchr(snapname, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
(void) strcpy(tofs, snapname);
|
|
tosnap = strchr(tofs, '@');
|
|
*tosnap++ = '\0';
|
|
|
|
error = nvlist_lookup_string(innvl, "origin", &origin);
|
|
if (error && error != ENOENT)
|
|
return (error);
|
|
|
|
error = nvlist_lookup_byte_array(innvl, "begin_record",
|
|
(uchar_t **)&begin_record, &begin_record_size);
|
|
if (error != 0 || begin_record_size != sizeof (*begin_record))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
input_fd = fnvlist_lookup_int32(innvl, "input_fd");
|
|
|
|
force = nvlist_exists(innvl, "force");
|
|
resumable = nvlist_exists(innvl, "resumable");
|
|
|
|
error = nvlist_lookup_int32(innvl, "cleanup_fd", &cleanup_fd);
|
|
if (error && error != ENOENT)
|
|
return (error);
|
|
|
|
error = nvlist_lookup_uint64(innvl, "action_handle", &action_handle);
|
|
if (error && error != ENOENT)
|
|
return (error);
|
|
|
|
/* we still use "props" here for backwards compatibility */
|
|
error = nvlist_lookup_nvlist(innvl, "props", &recvprops);
|
|
if (error && error != ENOENT)
|
|
return (error);
|
|
|
|
error = nvlist_lookup_nvlist(innvl, "localprops", &localprops);
|
|
if (error && error != ENOENT)
|
|
return (error);
|
|
|
|
error = nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
|
|
if (error && error != ENOENT)
|
|
return (error);
|
|
|
|
error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvprops, localprops,
|
|
hidden_args, force, resumable, input_fd, begin_record, cleanup_fd,
|
|
&read_bytes, &errflags, &action_handle, &errors);
|
|
|
|
fnvlist_add_uint64(outnvl, "read_bytes", read_bytes);
|
|
fnvlist_add_uint64(outnvl, "error_flags", errflags);
|
|
fnvlist_add_uint64(outnvl, "action_handle", action_handle);
|
|
fnvlist_add_nvlist(outnvl, "errors", errors);
|
|
|
|
nvlist_free(errors);
|
|
nvlist_free(recvprops);
|
|
nvlist_free(localprops);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of snapshot to send
|
|
* zc_cookie file descriptor to send stream to
|
|
* zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
|
|
* zc_sendobj objsetid of snapshot to send
|
|
* zc_fromobj objsetid of incremental fromsnap (may be zero)
|
|
* zc_guid if set, estimate size of stream only. zc_cookie is ignored.
|
|
* output size in zc_objset_type.
|
|
* zc_flags lzc_send_flags
|
|
*
|
|
* outputs:
|
|
* zc_objset_type estimated size, if zc_guid is set
|
|
*
|
|
* NOTE: This is no longer the preferred interface, any new functionality
|
|
* should be added to zfs_ioc_send_new() instead.
|
|
*/
|
|
static int
|
|
zfs_ioc_send(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
offset_t off;
|
|
boolean_t estimate = (zc->zc_guid != 0);
|
|
boolean_t embedok = (zc->zc_flags & 0x1);
|
|
boolean_t large_block_ok = (zc->zc_flags & 0x2);
|
|
boolean_t compressok = (zc->zc_flags & 0x4);
|
|
boolean_t rawok = (zc->zc_flags & 0x8);
|
|
|
|
if (zc->zc_obj != 0) {
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *tosnap;
|
|
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
if (dsl_dir_is_clone(tosnap->ds_dir))
|
|
zc->zc_fromobj =
|
|
dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj;
|
|
dsl_dataset_rele(tosnap, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
}
|
|
|
|
if (estimate) {
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *tosnap;
|
|
dsl_dataset_t *fromsnap = NULL;
|
|
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold_obj(dp, zc->zc_sendobj,
|
|
FTAG, &tosnap);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
if (zc->zc_fromobj != 0) {
|
|
error = dsl_dataset_hold_obj(dp, zc->zc_fromobj,
|
|
FTAG, &fromsnap);
|
|
if (error != 0) {
|
|
dsl_dataset_rele(tosnap, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
error = dmu_send_estimate(tosnap, fromsnap, compressok || rawok,
|
|
&zc->zc_objset_type);
|
|
|
|
if (fromsnap != NULL)
|
|
dsl_dataset_rele(fromsnap, FTAG);
|
|
dsl_dataset_rele(tosnap, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
} else {
|
|
file_t *fp = getf(zc->zc_cookie);
|
|
if (fp == NULL)
|
|
return (SET_ERROR(EBADF));
|
|
|
|
off = fp->f_offset;
|
|
error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
|
|
zc->zc_fromobj, embedok, large_block_ok, compressok, rawok,
|
|
zc->zc_cookie, fp->f_vnode, &off);
|
|
|
|
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
|
|
fp->f_offset = off;
|
|
releasef(zc->zc_cookie);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of snapshot on which to report progress
|
|
* zc_cookie file descriptor of send stream
|
|
*
|
|
* outputs:
|
|
* zc_cookie number of bytes written in send stream thus far
|
|
*/
|
|
static int
|
|
zfs_ioc_send_progress(zfs_cmd_t *zc)
|
|
{
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *ds;
|
|
dmu_sendarg_t *dsp = NULL;
|
|
int error;
|
|
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
mutex_enter(&ds->ds_sendstream_lock);
|
|
|
|
/*
|
|
* Iterate over all the send streams currently active on this dataset.
|
|
* If there's one which matches the specified file descriptor _and_ the
|
|
* stream was started by the current process, return the progress of
|
|
* that stream.
|
|
*/
|
|
|
|
for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL;
|
|
dsp = list_next(&ds->ds_sendstreams, dsp)) {
|
|
if (dsp->dsa_outfd == zc->zc_cookie &&
|
|
dsp->dsa_proc->group_leader == curproc->group_leader)
|
|
break;
|
|
}
|
|
|
|
if (dsp != NULL)
|
|
zc->zc_cookie = *(dsp->dsa_off);
|
|
else
|
|
error = SET_ERROR(ENOENT);
|
|
|
|
mutex_exit(&ds->ds_sendstream_lock);
|
|
dsl_dataset_rele(ds, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_inject_fault(zfs_cmd_t *zc)
|
|
{
|
|
int id, error;
|
|
|
|
error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
|
|
&zc->zc_inject_record);
|
|
|
|
if (error == 0)
|
|
zc->zc_guid = (uint64_t)id;
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_clear_fault(zfs_cmd_t *zc)
|
|
{
|
|
return (zio_clear_fault((int)zc->zc_guid));
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_inject_list_next(zfs_cmd_t *zc)
|
|
{
|
|
int id = (int)zc->zc_guid;
|
|
int error;
|
|
|
|
error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
|
|
&zc->zc_inject_record);
|
|
|
|
zc->zc_guid = id;
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_error_log(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
size_t count = (size_t)zc->zc_nvlist_dst_size;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
|
|
&count);
|
|
if (error == 0)
|
|
zc->zc_nvlist_dst_size = count;
|
|
else
|
|
zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_clear(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
vdev_t *vd;
|
|
int error;
|
|
|
|
/*
|
|
* On zpool clear we also fix up missing slogs
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa = spa_lookup(zc->zc_name);
|
|
if (spa == NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (SET_ERROR(EIO));
|
|
}
|
|
if (spa_get_log_state(spa) == SPA_LOG_MISSING) {
|
|
/* we need to let spa_open/spa_load clear the chains */
|
|
spa_set_log_state(spa, SPA_LOG_CLEAR);
|
|
}
|
|
spa->spa_last_open_failed = 0;
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
if (zc->zc_cookie & ZPOOL_NO_REWIND) {
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
} else {
|
|
nvlist_t *policy;
|
|
nvlist_t *config = NULL;
|
|
|
|
if (zc->zc_nvlist_src == 0)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src,
|
|
zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) {
|
|
error = spa_open_rewind(zc->zc_name, &spa, FTAG,
|
|
policy, &config);
|
|
if (config != NULL) {
|
|
int err;
|
|
|
|
if ((err = put_nvlist(zc, config)) != 0)
|
|
error = err;
|
|
nvlist_free(config);
|
|
}
|
|
nvlist_free(policy);
|
|
}
|
|
}
|
|
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* If multihost is enabled, resuming I/O is unsafe as another
|
|
* host may have imported the pool.
|
|
*/
|
|
if (spa_multihost(spa) && spa_suspended(spa))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
spa_vdev_state_enter(spa, SCL_NONE);
|
|
|
|
if (zc->zc_guid == 0) {
|
|
vd = NULL;
|
|
} else {
|
|
vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
|
|
if (vd == NULL) {
|
|
(void) spa_vdev_state_exit(spa, NULL, ENODEV);
|
|
spa_close(spa, FTAG);
|
|
return (SET_ERROR(ENODEV));
|
|
}
|
|
}
|
|
|
|
vdev_clear(spa, vd);
|
|
|
|
(void) spa_vdev_state_exit(spa, spa_suspended(spa) ?
|
|
NULL : spa->spa_root_vdev, 0);
|
|
|
|
/*
|
|
* Resume any suspended I/Os.
|
|
*/
|
|
if (zio_resume(spa) != 0)
|
|
error = SET_ERROR(EIO);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Reopen all the vdevs associated with the pool.
|
|
*
|
|
* innvl: {
|
|
* "scrub_restart" -> when true and scrub is running, allow to restart
|
|
* scrub as the side effect of the reopen (boolean).
|
|
* }
|
|
*
|
|
* outnvl is unused
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_pool_reopen[] = {
|
|
{"scrub_restart", DATA_TYPE_BOOLEAN_VALUE, 0},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_pool_reopen(const char *pool, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
boolean_t scrub_restart = B_TRUE;
|
|
|
|
if (innvl) {
|
|
scrub_restart = fnvlist_lookup_boolean_value(innvl,
|
|
"scrub_restart");
|
|
}
|
|
|
|
error = spa_open(pool, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
spa_vdev_state_enter(spa, SCL_NONE);
|
|
|
|
/*
|
|
* If the scrub_restart flag is B_FALSE and a scrub is already
|
|
* in progress then set spa_scrub_reopen flag to B_TRUE so that
|
|
* we don't restart the scrub as a side effect of the reopen.
|
|
* Otherwise, let vdev_open() decided if a resilver is required.
|
|
*/
|
|
|
|
spa->spa_scrub_reopen = (!scrub_restart &&
|
|
dsl_scan_scrubbing(spa->spa_dsl_pool));
|
|
vdev_reopen(spa->spa_root_vdev);
|
|
spa->spa_scrub_reopen = B_FALSE;
|
|
|
|
(void) spa_vdev_state_exit(spa, NULL, 0);
|
|
spa_close(spa, FTAG);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
*
|
|
* outputs:
|
|
* zc_string name of conflicting snapshot, if there is one
|
|
*/
|
|
static int
|
|
zfs_ioc_promote(zfs_cmd_t *zc)
|
|
{
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *ds, *ods;
|
|
char origin[ZFS_MAX_DATASET_NAME_LEN];
|
|
char *cp;
|
|
int error;
|
|
|
|
zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
|
|
if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 ||
|
|
strchr(zc->zc_name, '%'))
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
if (!dsl_dir_is_clone(ds->ds_dir)) {
|
|
dsl_dataset_rele(ds, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
error = dsl_dataset_hold_obj(dp,
|
|
dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods);
|
|
if (error != 0) {
|
|
dsl_dataset_rele(ds, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
dsl_dataset_name(ods, origin);
|
|
dsl_dataset_rele(ods, FTAG);
|
|
dsl_dataset_rele(ds, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
|
|
/*
|
|
* We don't need to unmount *all* the origin fs's snapshots, but
|
|
* it's easier.
|
|
*/
|
|
cp = strchr(origin, '@');
|
|
if (cp)
|
|
*cp = '\0';
|
|
(void) dmu_objset_find(origin,
|
|
zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS);
|
|
return (dsl_dataset_promote(zc->zc_name, zc->zc_string));
|
|
}
|
|
|
|
/*
|
|
* Retrieve a single {user|group|project}{used|quota}@... property.
|
|
*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_objset_type zfs_userquota_prop_t
|
|
* zc_value domain name (eg. "S-1-234-567-89")
|
|
* zc_guid RID/UID/GID
|
|
*
|
|
* outputs:
|
|
* zc_cookie property value
|
|
*/
|
|
static int
|
|
zfs_ioc_userspace_one(zfs_cmd_t *zc)
|
|
{
|
|
zfsvfs_t *zfsvfs;
|
|
int error;
|
|
|
|
if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
|
|
return (SET_ERROR(EINVAL));
|
|
|
|
error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = zfs_userspace_one(zfsvfs,
|
|
zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie);
|
|
zfsvfs_rele(zfsvfs, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_cookie zap cursor
|
|
* zc_objset_type zfs_userquota_prop_t
|
|
* zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
|
|
* zc_cookie zap cursor
|
|
*/
|
|
static int
|
|
zfs_ioc_userspace_many(zfs_cmd_t *zc)
|
|
{
|
|
zfsvfs_t *zfsvfs;
|
|
int bufsize = zc->zc_nvlist_dst_size;
|
|
|
|
if (bufsize <= 0)
|
|
return (SET_ERROR(ENOMEM));
|
|
|
|
int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
void *buf = vmem_alloc(bufsize, KM_SLEEP);
|
|
|
|
error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie,
|
|
buf, &zc->zc_nvlist_dst_size);
|
|
|
|
if (error == 0) {
|
|
error = xcopyout(buf,
|
|
(void *)(uintptr_t)zc->zc_nvlist_dst,
|
|
zc->zc_nvlist_dst_size);
|
|
}
|
|
vmem_free(buf, bufsize);
|
|
zfsvfs_rele(zfsvfs, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
*
|
|
* outputs:
|
|
* none
|
|
*/
|
|
static int
|
|
zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error = 0;
|
|
zfsvfs_t *zfsvfs;
|
|
|
|
if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) {
|
|
if (!dmu_objset_userused_enabled(zfsvfs->z_os)) {
|
|
/*
|
|
* If userused is not enabled, it may be because the
|
|
* objset needs to be closed & reopened (to grow the
|
|
* objset_phys_t). Suspend/resume the fs will do that.
|
|
*/
|
|
dsl_dataset_t *ds, *newds;
|
|
|
|
ds = dmu_objset_ds(zfsvfs->z_os);
|
|
error = zfs_suspend_fs(zfsvfs);
|
|
if (error == 0) {
|
|
dmu_objset_refresh_ownership(ds, &newds,
|
|
B_TRUE, zfsvfs);
|
|
error = zfs_resume_fs(zfsvfs, newds);
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = dmu_objset_userspace_upgrade(zfsvfs->z_os);
|
|
deactivate_super(zfsvfs->z_sb);
|
|
} else {
|
|
/* XXX kind of reading contents without owning */
|
|
error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dmu_objset_userspace_upgrade(os);
|
|
dmu_objset_rele_flags(os, B_TRUE, FTAG);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
*
|
|
* outputs:
|
|
* none
|
|
*/
|
|
static int
|
|
zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
if (dmu_objset_userobjspace_upgradable(os) ||
|
|
dmu_objset_projectquota_upgradable(os)) {
|
|
mutex_enter(&os->os_upgrade_lock);
|
|
if (os->os_upgrade_id == 0) {
|
|
/* clear potential error code and retry */
|
|
os->os_upgrade_status = 0;
|
|
mutex_exit(&os->os_upgrade_lock);
|
|
|
|
dmu_objset_id_quota_upgrade(os);
|
|
} else {
|
|
mutex_exit(&os->os_upgrade_lock);
|
|
}
|
|
|
|
dsl_pool_rele(dmu_objset_pool(os), FTAG);
|
|
|
|
taskq_wait_id(os->os_spa->spa_upgrade_taskq, os->os_upgrade_id);
|
|
error = os->os_upgrade_status;
|
|
} else {
|
|
dsl_pool_rele(dmu_objset_pool(os), FTAG);
|
|
}
|
|
|
|
dsl_dataset_rele_flags(dmu_objset_ds(os), DS_HOLD_FLAG_DECRYPT, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_share(zfs_cmd_t *zc)
|
|
{
|
|
return (SET_ERROR(ENOSYS));
|
|
}
|
|
|
|
ace_t full_access[] = {
|
|
{(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0}
|
|
};
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of containing filesystem
|
|
* zc_obj object # beyond which we want next in-use object #
|
|
*
|
|
* outputs:
|
|
* zc_obj next in-use object #
|
|
*/
|
|
static int
|
|
zfs_ioc_next_obj(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os = NULL;
|
|
int error;
|
|
|
|
error = dmu_objset_hold(zc->zc_name, FTAG, &os);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0);
|
|
|
|
dmu_objset_rele(os, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value prefix name for snapshot
|
|
* zc_cleanup_fd cleanup-on-exit file descriptor for calling process
|
|
*
|
|
* outputs:
|
|
* zc_value short name of new snapshot
|
|
*/
|
|
static int
|
|
zfs_ioc_tmp_snapshot(zfs_cmd_t *zc)
|
|
{
|
|
char *snap_name;
|
|
char *hold_name;
|
|
int error;
|
|
minor_t minor;
|
|
|
|
error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
snap_name = kmem_asprintf("%s-%016llx", zc->zc_value,
|
|
(u_longlong_t)ddi_get_lbolt64());
|
|
hold_name = kmem_asprintf("%%%s", zc->zc_value);
|
|
|
|
error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor,
|
|
hold_name);
|
|
if (error == 0)
|
|
(void) strlcpy(zc->zc_value, snap_name,
|
|
sizeof (zc->zc_value));
|
|
strfree(snap_name);
|
|
strfree(hold_name);
|
|
zfs_onexit_fd_rele(zc->zc_cleanup_fd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of "to" snapshot
|
|
* zc_value name of "from" snapshot
|
|
* zc_cookie file descriptor to write diff data on
|
|
*
|
|
* outputs:
|
|
* dmu_diff_record_t's to the file descriptor
|
|
*/
|
|
static int
|
|
zfs_ioc_diff(zfs_cmd_t *zc)
|
|
{
|
|
file_t *fp;
|
|
offset_t off;
|
|
int error;
|
|
|
|
fp = getf(zc->zc_cookie);
|
|
if (fp == NULL)
|
|
return (SET_ERROR(EBADF));
|
|
|
|
off = fp->f_offset;
|
|
|
|
error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off);
|
|
|
|
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
|
|
fp->f_offset = off;
|
|
releasef(zc->zc_cookie);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_smb_acl(zfs_cmd_t *zc)
|
|
{
|
|
return (SET_ERROR(ENOTSUP));
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "holds" -> { snapname -> holdname (string), ... }
|
|
* (optional) "cleanup_fd" -> fd (int32)
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* snapname -> error value (int32)
|
|
* ...
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_hold[] = {
|
|
{"holds", DATA_TYPE_NVLIST, 0},
|
|
{"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
|
|
{
|
|
nvpair_t *pair;
|
|
nvlist_t *holds;
|
|
int cleanup_fd = -1;
|
|
int error;
|
|
minor_t minor = 0;
|
|
|
|
holds = fnvlist_lookup_nvlist(args, "holds");
|
|
|
|
/* make sure the user didn't pass us any invalid (empty) tags */
|
|
for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
|
|
pair = nvlist_next_nvpair(holds, pair)) {
|
|
char *htag;
|
|
|
|
error = nvpair_value_string(pair, &htag);
|
|
if (error != 0)
|
|
return (SET_ERROR(error));
|
|
|
|
if (strlen(htag) == 0)
|
|
return (SET_ERROR(EINVAL));
|
|
}
|
|
|
|
if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) {
|
|
error = zfs_onexit_fd_hold(cleanup_fd, &minor);
|
|
if (error != 0)
|
|
return (error);
|
|
}
|
|
|
|
error = dsl_dataset_user_hold(holds, minor, errlist);
|
|
if (minor != 0)
|
|
zfs_onexit_fd_rele(cleanup_fd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl is not used.
|
|
*
|
|
* outnvl: {
|
|
* holdname -> time added (uint64 seconds since epoch)
|
|
* ...
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_get_holds[] = {
|
|
/* no nvl keys */
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl)
|
|
{
|
|
return (dsl_dataset_get_holds(snapname, outnvl));
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* snapname -> { holdname, ... }
|
|
* ...
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* snapname -> error value (int32)
|
|
* ...
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_release[] = {
|
|
{"<snapname>...", DATA_TYPE_NVLIST, ZK_WILDCARDLIST},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist)
|
|
{
|
|
return (dsl_dataset_user_release(holds, errlist));
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_guid flags (ZEVENT_NONBLOCK)
|
|
* zc_cleanup_fd zevent file descriptor
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_dst next nvlist event
|
|
* zc_cookie dropped events since last get
|
|
*/
|
|
static int
|
|
zfs_ioc_events_next(zfs_cmd_t *zc)
|
|
{
|
|
zfs_zevent_t *ze;
|
|
nvlist_t *event = NULL;
|
|
minor_t minor;
|
|
uint64_t dropped = 0;
|
|
int error;
|
|
|
|
error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
do {
|
|
error = zfs_zevent_next(ze, &event,
|
|
&zc->zc_nvlist_dst_size, &dropped);
|
|
if (event != NULL) {
|
|
zc->zc_cookie = dropped;
|
|
error = put_nvlist(zc, event);
|
|
nvlist_free(event);
|
|
}
|
|
|
|
if (zc->zc_guid & ZEVENT_NONBLOCK)
|
|
break;
|
|
|
|
if ((error == 0) || (error != ENOENT))
|
|
break;
|
|
|
|
error = zfs_zevent_wait(ze);
|
|
if (error != 0)
|
|
break;
|
|
} while (1);
|
|
|
|
zfs_zevent_fd_rele(zc->zc_cleanup_fd);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* outputs:
|
|
* zc_cookie cleared events count
|
|
*/
|
|
static int
|
|
zfs_ioc_events_clear(zfs_cmd_t *zc)
|
|
{
|
|
int count;
|
|
|
|
zfs_zevent_drain_all(&count);
|
|
zc->zc_cookie = count;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
|
|
* zc_cleanup zevent file descriptor
|
|
*/
|
|
static int
|
|
zfs_ioc_events_seek(zfs_cmd_t *zc)
|
|
{
|
|
zfs_zevent_t *ze;
|
|
minor_t minor;
|
|
int error;
|
|
|
|
error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = zfs_zevent_seek(ze, zc->zc_guid);
|
|
zfs_zevent_fd_rele(zc->zc_cleanup_fd);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of new filesystem or snapshot
|
|
* zc_value full name of old snapshot
|
|
*
|
|
* outputs:
|
|
* zc_cookie space in bytes
|
|
* zc_objset_type compressed space in bytes
|
|
* zc_perm_action uncompressed space in bytes
|
|
*/
|
|
static int
|
|
zfs_ioc_space_written(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *new, *old;
|
|
|
|
error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old);
|
|
if (error != 0) {
|
|
dsl_dataset_rele(new, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
error = dsl_dataset_space_written(old, new, &zc->zc_cookie,
|
|
&zc->zc_objset_type, &zc->zc_perm_action);
|
|
dsl_dataset_rele(old, FTAG);
|
|
dsl_dataset_rele(new, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "firstsnap" -> snapshot name
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* "used" -> space in bytes
|
|
* "compressed" -> compressed space in bytes
|
|
* "uncompressed" -> uncompressed space in bytes
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_space_snaps[] = {
|
|
{"firstsnap", DATA_TYPE_STRING, 0},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int error;
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *new, *old;
|
|
char *firstsnap;
|
|
uint64_t used, comp, uncomp;
|
|
|
|
firstsnap = fnvlist_lookup_string(innvl, "firstsnap");
|
|
|
|
error = dsl_pool_hold(lastsnap, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold(dp, lastsnap, FTAG, &new);
|
|
if (error == 0 && !new->ds_is_snapshot) {
|
|
dsl_dataset_rele(new, FTAG);
|
|
error = SET_ERROR(EINVAL);
|
|
}
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
error = dsl_dataset_hold(dp, firstsnap, FTAG, &old);
|
|
if (error == 0 && !old->ds_is_snapshot) {
|
|
dsl_dataset_rele(old, FTAG);
|
|
error = SET_ERROR(EINVAL);
|
|
}
|
|
if (error != 0) {
|
|
dsl_dataset_rele(new, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp);
|
|
dsl_dataset_rele(old, FTAG);
|
|
dsl_dataset_rele(new, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
fnvlist_add_uint64(outnvl, "used", used);
|
|
fnvlist_add_uint64(outnvl, "compressed", comp);
|
|
fnvlist_add_uint64(outnvl, "uncompressed", uncomp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* innvl: {
|
|
* "fd" -> file descriptor to write stream to (int32)
|
|
* (optional) "fromsnap" -> full snap name to send an incremental from
|
|
* (optional) "largeblockok" -> (value ignored)
|
|
* indicates that blocks > 128KB are permitted
|
|
* (optional) "embedok" -> (value ignored)
|
|
* presence indicates DRR_WRITE_EMBEDDED records are permitted
|
|
* (optional) "compressok" -> (value ignored)
|
|
* presence indicates compressed DRR_WRITE records are permitted
|
|
* (optional) "rawok" -> (value ignored)
|
|
* presence indicates raw encrypted records should be used.
|
|
* (optional) "resume_object" and "resume_offset" -> (uint64)
|
|
* if present, resume send stream from specified object and offset.
|
|
* }
|
|
*
|
|
* outnvl is unused
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_send_new[] = {
|
|
{"fd", DATA_TYPE_INT32, 0},
|
|
{"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL},
|
|
{"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"resume_object", DATA_TYPE_UINT64, ZK_OPTIONAL},
|
|
{"resume_offset", DATA_TYPE_UINT64, ZK_OPTIONAL},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int error;
|
|
offset_t off;
|
|
char *fromname = NULL;
|
|
int fd;
|
|
file_t *fp;
|
|
boolean_t largeblockok;
|
|
boolean_t embedok;
|
|
boolean_t compressok;
|
|
boolean_t rawok;
|
|
uint64_t resumeobj = 0;
|
|
uint64_t resumeoff = 0;
|
|
|
|
fd = fnvlist_lookup_int32(innvl, "fd");
|
|
|
|
(void) nvlist_lookup_string(innvl, "fromsnap", &fromname);
|
|
|
|
largeblockok = nvlist_exists(innvl, "largeblockok");
|
|
embedok = nvlist_exists(innvl, "embedok");
|
|
compressok = nvlist_exists(innvl, "compressok");
|
|
rawok = nvlist_exists(innvl, "rawok");
|
|
|
|
(void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj);
|
|
(void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff);
|
|
|
|
if ((fp = getf(fd)) == NULL)
|
|
return (SET_ERROR(EBADF));
|
|
|
|
off = fp->f_offset;
|
|
error = dmu_send(snapname, fromname, embedok, largeblockok, compressok,
|
|
rawok, fd, resumeobj, resumeoff, fp->f_vnode, &off);
|
|
|
|
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
|
|
fp->f_offset = off;
|
|
|
|
releasef(fd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Determine approximately how large a zfs send stream will be -- the number
|
|
* of bytes that will be written to the fd supplied to zfs_ioc_send_new().
|
|
*
|
|
* innvl: {
|
|
* (optional) "from" -> full snap or bookmark name to send an incremental
|
|
* from
|
|
* (optional) "largeblockok" -> (value ignored)
|
|
* indicates that blocks > 128KB are permitted
|
|
* (optional) "embedok" -> (value ignored)
|
|
* presence indicates DRR_WRITE_EMBEDDED records are permitted
|
|
* (optional) "compressok" -> (value ignored)
|
|
* presence indicates compressed DRR_WRITE records are permitted
|
|
* (optional) "rawok" -> (value ignored)
|
|
* presence indicates raw encrypted records should be used.
|
|
* }
|
|
*
|
|
* outnvl: {
|
|
* "space" -> bytes of space (uint64)
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_send_space[] = {
|
|
{"from", DATA_TYPE_STRING, ZK_OPTIONAL},
|
|
{"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL},
|
|
{"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
{"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
};
|
|
|
|
static int
|
|
zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
dsl_pool_t *dp;
|
|
dsl_dataset_t *tosnap;
|
|
int error;
|
|
char *fromname;
|
|
boolean_t compressok;
|
|
boolean_t rawok;
|
|
uint64_t space;
|
|
|
|
error = dsl_pool_hold(snapname, FTAG, &dp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap);
|
|
if (error != 0) {
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
compressok = nvlist_exists(innvl, "compressok");
|
|
rawok = nvlist_exists(innvl, "rawok");
|
|
|
|
error = nvlist_lookup_string(innvl, "from", &fromname);
|
|
if (error == 0) {
|
|
if (strchr(fromname, '@') != NULL) {
|
|
/*
|
|
* If from is a snapshot, hold it and use the more
|
|
* efficient dmu_send_estimate to estimate send space
|
|
* size using deadlists.
|
|
*/
|
|
dsl_dataset_t *fromsnap;
|
|
error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap);
|
|
if (error != 0)
|
|
goto out;
|
|
error = dmu_send_estimate(tosnap, fromsnap,
|
|
compressok || rawok, &space);
|
|
dsl_dataset_rele(fromsnap, FTAG);
|
|
} else if (strchr(fromname, '#') != NULL) {
|
|
/*
|
|
* If from is a bookmark, fetch the creation TXG of the
|
|
* snapshot it was created from and use that to find
|
|
* blocks that were born after it.
|
|
*/
|
|
zfs_bookmark_phys_t frombm;
|
|
|
|
error = dsl_bookmark_lookup(dp, fromname, tosnap,
|
|
&frombm);
|
|
if (error != 0)
|
|
goto out;
|
|
error = dmu_send_estimate_from_txg(tosnap,
|
|
frombm.zbm_creation_txg, compressok || rawok,
|
|
&space);
|
|
} else {
|
|
/*
|
|
* from is not properly formatted as a snapshot or
|
|
* bookmark
|
|
*/
|
|
error = SET_ERROR(EINVAL);
|
|
goto out;
|
|
}
|
|
} else {
|
|
/*
|
|
* If estimating the size of a full send, use dmu_send_estimate.
|
|
*/
|
|
error = dmu_send_estimate(tosnap, NULL, compressok || rawok,
|
|
&space);
|
|
}
|
|
|
|
fnvlist_add_uint64(outnvl, "space", space);
|
|
|
|
out:
|
|
dsl_dataset_rele(tosnap, FTAG);
|
|
dsl_pool_rele(dp, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Sync the currently open TXG to disk for the specified pool.
|
|
* This is somewhat similar to 'zfs_sync()'.
|
|
* For cases that do not result in error this ioctl will wait for
|
|
* the currently open TXG to commit before returning back to the caller.
|
|
*
|
|
* innvl: {
|
|
* "force" -> when true, force uberblock update even if there is no dirty data.
|
|
* In addition this will cause the vdev configuration to be written
|
|
* out including updating the zpool cache file. (boolean_t)
|
|
* }
|
|
*
|
|
* onvl is unused
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_pool_sync[] = {
|
|
{"force", DATA_TYPE_BOOLEAN_VALUE, 0},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
|
|
{
|
|
int err;
|
|
boolean_t force = B_FALSE;
|
|
spa_t *spa;
|
|
|
|
if ((err = spa_open(pool, &spa, FTAG)) != 0)
|
|
return (err);
|
|
|
|
if (innvl)
|
|
force = fnvlist_lookup_boolean_value(innvl, "force");
|
|
|
|
if (force) {
|
|
spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER);
|
|
vdev_config_dirty(spa->spa_root_vdev);
|
|
spa_config_exit(spa, SCL_CONFIG, FTAG);
|
|
}
|
|
txg_wait_synced(spa_get_dsl(spa), 0);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* Load a user's wrapping key into the kernel.
|
|
* innvl: {
|
|
* "hidden_args" -> { "wkeydata" -> value }
|
|
* raw uint8_t array of encryption wrapping key data (32 bytes)
|
|
* (optional) "noop" -> (value ignored)
|
|
* presence indicated key should only be verified, not loaded
|
|
* }
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_load_key[] = {
|
|
{"hidden_args", DATA_TYPE_NVLIST, 0},
|
|
{"noop", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int ret;
|
|
dsl_crypto_params_t *dcp = NULL;
|
|
nvlist_t *hidden_args;
|
|
boolean_t noop = nvlist_exists(innvl, "noop");
|
|
|
|
if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
|
|
ret = SET_ERROR(EINVAL);
|
|
goto error;
|
|
}
|
|
|
|
hidden_args = fnvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS);
|
|
|
|
ret = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL,
|
|
hidden_args, &dcp);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
ret = spa_keystore_load_wkey(dsname, dcp, noop);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
dsl_crypto_params_free(dcp, noop);
|
|
|
|
return (0);
|
|
|
|
error:
|
|
dsl_crypto_params_free(dcp, B_TRUE);
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Unload a user's wrapping key from the kernel.
|
|
* Both innvl and outnvl are unused.
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_unload_key[] = {
|
|
/* no nvl keys */
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_unload_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
|
|
ret = (SET_ERROR(EINVAL));
|
|
goto out;
|
|
}
|
|
|
|
ret = spa_keystore_unload_wkey(dsname);
|
|
if (ret != 0)
|
|
goto out;
|
|
|
|
out:
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Changes a user's wrapping key used to decrypt a dataset. The keyformat,
|
|
* keylocation, pbkdf2salt, and pbkdf2iters properties can also be specified
|
|
* here to change how the key is derived in userspace.
|
|
*
|
|
* innvl: {
|
|
* "hidden_args" (optional) -> { "wkeydata" -> value }
|
|
* raw uint8_t array of new encryption wrapping key data (32 bytes)
|
|
* "props" (optional) -> { prop -> value }
|
|
* }
|
|
*
|
|
* outnvl is unused
|
|
*/
|
|
static const zfs_ioc_key_t zfs_keys_change_key[] = {
|
|
{"crypt_cmd", DATA_TYPE_UINT64, ZK_OPTIONAL},
|
|
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
|
|
};
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_ioc_change_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
|
|
{
|
|
int ret;
|
|
uint64_t cmd = DCP_CMD_NONE;
|
|
dsl_crypto_params_t *dcp = NULL;
|
|
nvlist_t *args = NULL, *hidden_args = NULL;
|
|
|
|
if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
|
|
ret = (SET_ERROR(EINVAL));
|
|
goto error;
|
|
}
|
|
|
|
(void) nvlist_lookup_uint64(innvl, "crypt_cmd", &cmd);
|
|
(void) nvlist_lookup_nvlist(innvl, "props", &args);
|
|
(void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
|
|
|
|
ret = dsl_crypto_params_create_nvlist(cmd, args, hidden_args, &dcp);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
ret = spa_keystore_change_key(dsname, dcp);
|
|
if (ret != 0)
|
|
goto error;
|
|
|
|
dsl_crypto_params_free(dcp, B_FALSE);
|
|
|
|
return (0);
|
|
|
|
error:
|
|
dsl_crypto_params_free(dcp, B_TRUE);
|
|
return (ret);
|
|
}
|
|
|
|
static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
|
|
|
|
static void
|
|
zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
|
|
zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
|
|
boolean_t log_history, zfs_ioc_poolcheck_t pool_check)
|
|
{
|
|
zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
|
|
|
|
ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
|
|
ASSERT3U(ioc, <, ZFS_IOC_LAST);
|
|
ASSERT3P(vec->zvec_legacy_func, ==, NULL);
|
|
ASSERT3P(vec->zvec_func, ==, NULL);
|
|
|
|
vec->zvec_legacy_func = func;
|
|
vec->zvec_secpolicy = secpolicy;
|
|
vec->zvec_namecheck = namecheck;
|
|
vec->zvec_allow_log = log_history;
|
|
vec->zvec_pool_check = pool_check;
|
|
}
|
|
|
|
/*
|
|
* See the block comment at the beginning of this file for details on
|
|
* each argument to this function.
|
|
*/
|
|
static void
|
|
zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func,
|
|
zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
|
|
zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist,
|
|
boolean_t allow_log, const zfs_ioc_key_t *nvl_keys, size_t num_keys)
|
|
{
|
|
zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
|
|
|
|
ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
|
|
ASSERT3U(ioc, <, ZFS_IOC_LAST);
|
|
ASSERT3P(vec->zvec_legacy_func, ==, NULL);
|
|
ASSERT3P(vec->zvec_func, ==, NULL);
|
|
|
|
/* if we are logging, the name must be valid */
|
|
ASSERT(!allow_log || namecheck != NO_NAME);
|
|
|
|
vec->zvec_name = name;
|
|
vec->zvec_func = func;
|
|
vec->zvec_secpolicy = secpolicy;
|
|
vec->zvec_namecheck = namecheck;
|
|
vec->zvec_pool_check = pool_check;
|
|
vec->zvec_smush_outnvlist = smush_outnvlist;
|
|
vec->zvec_allow_log = allow_log;
|
|
vec->zvec_nvl_keys = nvl_keys;
|
|
vec->zvec_nvl_key_count = num_keys;
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
|
|
zfs_secpolicy_func_t *secpolicy, boolean_t log_history,
|
|
zfs_ioc_poolcheck_t pool_check)
|
|
{
|
|
zfs_ioctl_register_legacy(ioc, func, secpolicy,
|
|
POOL_NAME, log_history, pool_check);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
|
|
zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check)
|
|
{
|
|
zfs_ioctl_register_legacy(ioc, func, secpolicy,
|
|
DATASET_NAME, B_FALSE, pool_check);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
|
|
{
|
|
zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config,
|
|
POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
|
|
zfs_secpolicy_func_t *secpolicy)
|
|
{
|
|
zfs_ioctl_register_legacy(ioc, func, secpolicy,
|
|
NO_NAME, B_FALSE, POOL_CHECK_NONE);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc,
|
|
zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy)
|
|
{
|
|
zfs_ioctl_register_legacy(ioc, func, secpolicy,
|
|
DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
|
|
{
|
|
zfs_ioctl_register_dataset_read_secpolicy(ioc, func,
|
|
zfs_secpolicy_read);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
|
|
zfs_secpolicy_func_t *secpolicy)
|
|
{
|
|
zfs_ioctl_register_legacy(ioc, func, secpolicy,
|
|
DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
|
|
}
|
|
|
|
static void
|
|
zfs_ioctl_init(void)
|
|
{
|
|
zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT,
|
|
zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_snapshot, ARRAY_SIZE(zfs_keys_snapshot));
|
|
|
|
zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY,
|
|
zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE,
|
|
zfs_keys_log_history, ARRAY_SIZE(zfs_keys_log_history));
|
|
|
|
zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS,
|
|
zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
|
|
zfs_keys_space_snaps, ARRAY_SIZE(zfs_keys_space_snaps));
|
|
|
|
zfs_ioctl_register("send", ZFS_IOC_SEND_NEW,
|
|
zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
|
|
zfs_keys_send_new, ARRAY_SIZE(zfs_keys_send_new));
|
|
|
|
zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE,
|
|
zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
|
|
zfs_keys_send_space, ARRAY_SIZE(zfs_keys_send_space));
|
|
|
|
zfs_ioctl_register("create", ZFS_IOC_CREATE,
|
|
zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_create, ARRAY_SIZE(zfs_keys_create));
|
|
|
|
zfs_ioctl_register("clone", ZFS_IOC_CLONE,
|
|
zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_clone, ARRAY_SIZE(zfs_keys_clone));
|
|
|
|
zfs_ioctl_register("remap", ZFS_IOC_REMAP,
|
|
zfs_ioc_remap, zfs_secpolicy_remap, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE,
|
|
zfs_keys_remap, ARRAY_SIZE(zfs_keys_remap));
|
|
|
|
zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS,
|
|
zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_destroy_snaps, ARRAY_SIZE(zfs_keys_destroy_snaps));
|
|
|
|
zfs_ioctl_register("hold", ZFS_IOC_HOLD,
|
|
zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_hold, ARRAY_SIZE(zfs_keys_hold));
|
|
zfs_ioctl_register("release", ZFS_IOC_RELEASE,
|
|
zfs_ioc_release, zfs_secpolicy_release, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_release, ARRAY_SIZE(zfs_keys_release));
|
|
|
|
zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS,
|
|
zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
|
|
zfs_keys_get_holds, ARRAY_SIZE(zfs_keys_get_holds));
|
|
|
|
zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,
|
|
zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE,
|
|
zfs_keys_rollback, ARRAY_SIZE(zfs_keys_rollback));
|
|
|
|
zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK,
|
|
zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_bookmark, ARRAY_SIZE(zfs_keys_bookmark));
|
|
|
|
zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS,
|
|
zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
|
|
zfs_keys_get_bookmarks, ARRAY_SIZE(zfs_keys_get_bookmarks));
|
|
|
|
zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS,
|
|
zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks,
|
|
POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_destroy_bookmarks,
|
|
ARRAY_SIZE(zfs_keys_destroy_bookmarks));
|
|
|
|
zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW,
|
|
zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_recv_new, ARRAY_SIZE(zfs_keys_recv_new));
|
|
zfs_ioctl_register("load-key", ZFS_IOC_LOAD_KEY,
|
|
zfs_ioc_load_key, zfs_secpolicy_load_key,
|
|
DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
|
|
zfs_keys_load_key, ARRAY_SIZE(zfs_keys_load_key));
|
|
zfs_ioctl_register("unload-key", ZFS_IOC_UNLOAD_KEY,
|
|
zfs_ioc_unload_key, zfs_secpolicy_load_key,
|
|
DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
|
|
zfs_keys_unload_key, ARRAY_SIZE(zfs_keys_unload_key));
|
|
zfs_ioctl_register("change-key", ZFS_IOC_CHANGE_KEY,
|
|
zfs_ioc_change_key, zfs_secpolicy_change_key,
|
|
DATASET_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY,
|
|
B_TRUE, B_TRUE, zfs_keys_change_key,
|
|
ARRAY_SIZE(zfs_keys_change_key));
|
|
|
|
zfs_ioctl_register("sync", ZFS_IOC_POOL_SYNC,
|
|
zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE,
|
|
zfs_keys_pool_sync, ARRAY_SIZE(zfs_keys_pool_sync));
|
|
zfs_ioctl_register("reopen", ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen,
|
|
zfs_secpolicy_config, POOL_NAME, POOL_CHECK_SUSPENDED, B_TRUE,
|
|
B_TRUE, zfs_keys_pool_reopen, ARRAY_SIZE(zfs_keys_pool_reopen));
|
|
|
|
zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM,
|
|
zfs_ioc_channel_program, zfs_secpolicy_config,
|
|
POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE,
|
|
B_TRUE, zfs_keys_channel_program,
|
|
ARRAY_SIZE(zfs_keys_channel_program));
|
|
|
|
zfs_ioctl_register("zpool_checkpoint", ZFS_IOC_POOL_CHECKPOINT,
|
|
zfs_ioc_pool_checkpoint, zfs_secpolicy_config, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_pool_checkpoint, ARRAY_SIZE(zfs_keys_pool_checkpoint));
|
|
|
|
zfs_ioctl_register("zpool_discard_checkpoint",
|
|
ZFS_IOC_POOL_DISCARD_CHECKPOINT, zfs_ioc_pool_discard_checkpoint,
|
|
zfs_secpolicy_config, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_pool_discard_checkpoint,
|
|
ARRAY_SIZE(zfs_keys_pool_discard_checkpoint));
|
|
|
|
zfs_ioctl_register("initialize", ZFS_IOC_POOL_INITIALIZE,
|
|
zfs_ioc_pool_initialize, zfs_secpolicy_config, POOL_NAME,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
|
|
zfs_keys_pool_initialize, ARRAY_SIZE(zfs_keys_pool_initialize));
|
|
|
|
/* IOCTLS that use the legacy function signature */
|
|
|
|
zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,
|
|
zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY);
|
|
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create,
|
|
zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN,
|
|
zfs_ioc_pool_scan);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE,
|
|
zfs_ioc_pool_upgrade);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD,
|
|
zfs_ioc_vdev_add);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE,
|
|
zfs_ioc_vdev_remove);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE,
|
|
zfs_ioc_vdev_set_state);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH,
|
|
zfs_ioc_vdev_attach);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH,
|
|
zfs_ioc_vdev_detach);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH,
|
|
zfs_ioc_vdev_setpath);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU,
|
|
zfs_ioc_vdev_setfru);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS,
|
|
zfs_ioc_pool_set_props);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT,
|
|
zfs_ioc_vdev_split);
|
|
zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID,
|
|
zfs_ioc_pool_reguid);
|
|
|
|
zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS,
|
|
zfs_ioc_pool_configs, zfs_secpolicy_none);
|
|
zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT,
|
|
zfs_ioc_pool_tryimport, zfs_secpolicy_config);
|
|
zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT,
|
|
zfs_ioc_inject_fault, zfs_secpolicy_inject);
|
|
zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT,
|
|
zfs_ioc_clear_fault, zfs_secpolicy_inject);
|
|
zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT,
|
|
zfs_ioc_inject_list_next, zfs_secpolicy_inject);
|
|
|
|
/*
|
|
* pool destroy, and export don't log the history as part of
|
|
* zfsdev_ioctl, but rather zfs_ioc_pool_export
|
|
* does the logging of those commands.
|
|
*/
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy,
|
|
zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export,
|
|
zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
|
|
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats,
|
|
zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props,
|
|
zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
|
|
|
|
zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log,
|
|
zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED);
|
|
zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME,
|
|
zfs_ioc_dsobj_to_dsname,
|
|
zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED);
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY,
|
|
zfs_ioc_pool_get_history,
|
|
zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
|
|
|
|
zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import,
|
|
zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
|
|
|
|
zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear,
|
|
zfs_secpolicy_config, B_TRUE, POOL_CHECK_READONLY);
|
|
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN,
|
|
zfs_ioc_space_written);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS,
|
|
zfs_ioc_objset_recvd_props);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ,
|
|
zfs_ioc_next_obj);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL,
|
|
zfs_ioc_get_fsacl);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS,
|
|
zfs_ioc_objset_stats);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS,
|
|
zfs_ioc_objset_zplprops);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT,
|
|
zfs_ioc_dataset_list_next);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT,
|
|
zfs_ioc_snapshot_list_next);
|
|
zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS,
|
|
zfs_ioc_send_progress);
|
|
|
|
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF,
|
|
zfs_ioc_diff, zfs_secpolicy_diff);
|
|
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS,
|
|
zfs_ioc_obj_to_stats, zfs_secpolicy_diff);
|
|
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH,
|
|
zfs_ioc_obj_to_path, zfs_secpolicy_diff);
|
|
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE,
|
|
zfs_ioc_userspace_one, zfs_secpolicy_userspace_one);
|
|
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY,
|
|
zfs_ioc_userspace_many, zfs_secpolicy_userspace_many);
|
|
zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND,
|
|
zfs_ioc_send, zfs_secpolicy_send);
|
|
|
|
zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop,
|
|
zfs_secpolicy_none);
|
|
zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_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_secpolicy_recv);
|
|
zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote,
|
|
zfs_secpolicy_promote);
|
|
zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP,
|
|
zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop);
|
|
zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl,
|
|
zfs_secpolicy_set_fsacl);
|
|
|
|
zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share,
|
|
zfs_secpolicy_share, POOL_CHECK_NONE);
|
|
zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl,
|
|
zfs_secpolicy_smb_acl, POOL_CHECK_NONE);
|
|
zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE,
|
|
zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
|
|
zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT,
|
|
zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot,
|
|
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
|
|
|
|
/*
|
|
* ZoL functions
|
|
*/
|
|
zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next,
|
|
zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
|
|
zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear,
|
|
zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
|
|
zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek,
|
|
zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
|
|
}
|
|
|
|
/*
|
|
* Verify that for non-legacy ioctls the input nvlist
|
|
* pairs match against the expected input.
|
|
*
|
|
* Possible errors are:
|
|
* ZFS_ERR_IOC_ARG_UNAVAIL An unrecognized nvpair was encountered
|
|
* ZFS_ERR_IOC_ARG_REQUIRED A required nvpair is missing
|
|
* ZFS_ERR_IOC_ARG_BADTYPE Invalid type for nvpair
|
|
*/
|
|
static int
|
|
zfs_check_input_nvpairs(nvlist_t *innvl, const zfs_ioc_vec_t *vec)
|
|
{
|
|
const zfs_ioc_key_t *nvl_keys = vec->zvec_nvl_keys;
|
|
boolean_t required_keys_found = B_FALSE;
|
|
|
|
/*
|
|
* examine each input pair
|
|
*/
|
|
for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
|
|
pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
|
|
char *name = nvpair_name(pair);
|
|
data_type_t type = nvpair_type(pair);
|
|
boolean_t identified = B_FALSE;
|
|
|
|
/*
|
|
* check pair against the documented names and type
|
|
*/
|
|
for (int k = 0; k < vec->zvec_nvl_key_count; k++) {
|
|
/* if not a wild card name, check for an exact match */
|
|
if ((nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) == 0 &&
|
|
strcmp(nvl_keys[k].zkey_name, name) != 0)
|
|
continue;
|
|
|
|
identified = B_TRUE;
|
|
|
|
if (nvl_keys[k].zkey_type != DATA_TYPE_ANY &&
|
|
nvl_keys[k].zkey_type != type) {
|
|
return (SET_ERROR(ZFS_ERR_IOC_ARG_BADTYPE));
|
|
}
|
|
|
|
if (nvl_keys[k].zkey_flags & ZK_OPTIONAL)
|
|
continue;
|
|
|
|
required_keys_found = B_TRUE;
|
|
break;
|
|
}
|
|
|
|
/* allow an 'optional' key, everything else is invalid */
|
|
if (!identified &&
|
|
(strcmp(name, "optional") != 0 ||
|
|
type != DATA_TYPE_NVLIST)) {
|
|
return (SET_ERROR(ZFS_ERR_IOC_ARG_UNAVAIL));
|
|
}
|
|
}
|
|
|
|
/* verify that all required keys were found */
|
|
for (int k = 0; k < vec->zvec_nvl_key_count; k++) {
|
|
if (nvl_keys[k].zkey_flags & ZK_OPTIONAL)
|
|
continue;
|
|
|
|
if (nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) {
|
|
/* at least one non-optionial key is expected here */
|
|
if (!required_keys_found)
|
|
return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED));
|
|
continue;
|
|
}
|
|
|
|
if (!nvlist_exists(innvl, nvl_keys[k].zkey_name))
|
|
return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED));
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pool_status_check(const char *name, zfs_ioc_namecheck_t type,
|
|
zfs_ioc_poolcheck_t check)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
ASSERT(type == POOL_NAME || type == DATASET_NAME);
|
|
|
|
if (check & POOL_CHECK_NONE)
|
|
return (0);
|
|
|
|
error = spa_open(name, &spa, FTAG);
|
|
if (error == 0) {
|
|
if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))
|
|
error = SET_ERROR(EAGAIN);
|
|
else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa))
|
|
error = SET_ERROR(EROFS);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static void *
|
|
zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which)
|
|
{
|
|
zfsdev_state_t *zs;
|
|
|
|
for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
|
|
if (zs->zs_minor == minor) {
|
|
smp_rmb();
|
|
switch (which) {
|
|
case ZST_ONEXIT:
|
|
return (zs->zs_onexit);
|
|
case ZST_ZEVENT:
|
|
return (zs->zs_zevent);
|
|
case ZST_ALL:
|
|
return (zs);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
void *
|
|
zfsdev_get_state(minor_t minor, enum zfsdev_state_type which)
|
|
{
|
|
void *ptr;
|
|
|
|
ptr = zfsdev_get_state_impl(minor, which);
|
|
|
|
return (ptr);
|
|
}
|
|
|
|
int
|
|
zfsdev_getminor(struct file *filp, minor_t *minorp)
|
|
{
|
|
zfsdev_state_t *zs, *fpd;
|
|
|
|
ASSERT(filp != NULL);
|
|
ASSERT(!MUTEX_HELD(&zfsdev_state_lock));
|
|
|
|
fpd = filp->private_data;
|
|
if (fpd == NULL)
|
|
return (SET_ERROR(EBADF));
|
|
|
|
mutex_enter(&zfsdev_state_lock);
|
|
|
|
for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
|
|
|
|
if (zs->zs_minor == -1)
|
|
continue;
|
|
|
|
if (fpd == zs) {
|
|
*minorp = fpd->zs_minor;
|
|
mutex_exit(&zfsdev_state_lock);
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
mutex_exit(&zfsdev_state_lock);
|
|
|
|
return (SET_ERROR(EBADF));
|
|
}
|
|
|
|
/*
|
|
* Find a free minor number. The zfsdev_state_list is expected to
|
|
* be short since it is only a list of currently open file handles.
|
|
*/
|
|
minor_t
|
|
zfsdev_minor_alloc(void)
|
|
{
|
|
static minor_t last_minor = 0;
|
|
minor_t m;
|
|
|
|
ASSERT(MUTEX_HELD(&zfsdev_state_lock));
|
|
|
|
for (m = last_minor + 1; m != last_minor; m++) {
|
|
if (m > ZFSDEV_MAX_MINOR)
|
|
m = 1;
|
|
if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) {
|
|
last_minor = m;
|
|
return (m);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfsdev_state_init(struct file *filp)
|
|
{
|
|
zfsdev_state_t *zs, *zsprev = NULL;
|
|
minor_t minor;
|
|
boolean_t newzs = B_FALSE;
|
|
|
|
ASSERT(MUTEX_HELD(&zfsdev_state_lock));
|
|
|
|
minor = zfsdev_minor_alloc();
|
|
if (minor == 0)
|
|
return (SET_ERROR(ENXIO));
|
|
|
|
for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
|
|
if (zs->zs_minor == -1)
|
|
break;
|
|
zsprev = zs;
|
|
}
|
|
|
|
if (!zs) {
|
|
zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP);
|
|
newzs = B_TRUE;
|
|
}
|
|
|
|
zs->zs_file = filp;
|
|
filp->private_data = zs;
|
|
|
|
zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit);
|
|
zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent);
|
|
|
|
|
|
/*
|
|
* In order to provide for lock-free concurrent read access
|
|
* to the minor list in zfsdev_get_state_impl(), new entries
|
|
* must be completely written before linking them into the
|
|
* list whereas existing entries are already linked; the last
|
|
* operation must be updating zs_minor (from -1 to the new
|
|
* value).
|
|
*/
|
|
if (newzs) {
|
|
zs->zs_minor = minor;
|
|
smp_wmb();
|
|
zsprev->zs_next = zs;
|
|
} else {
|
|
smp_wmb();
|
|
zs->zs_minor = minor;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfsdev_state_destroy(struct file *filp)
|
|
{
|
|
zfsdev_state_t *zs;
|
|
|
|
ASSERT(MUTEX_HELD(&zfsdev_state_lock));
|
|
ASSERT(filp->private_data != NULL);
|
|
|
|
zs = filp->private_data;
|
|
zs->zs_minor = -1;
|
|
zfs_onexit_destroy(zs->zs_onexit);
|
|
zfs_zevent_destroy(zs->zs_zevent);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfsdev_open(struct inode *ino, struct file *filp)
|
|
{
|
|
int error;
|
|
|
|
mutex_enter(&zfsdev_state_lock);
|
|
error = zfsdev_state_init(filp);
|
|
mutex_exit(&zfsdev_state_lock);
|
|
|
|
return (-error);
|
|
}
|
|
|
|
static int
|
|
zfsdev_release(struct inode *ino, struct file *filp)
|
|
{
|
|
int error;
|
|
|
|
mutex_enter(&zfsdev_state_lock);
|
|
error = zfsdev_state_destroy(filp);
|
|
mutex_exit(&zfsdev_state_lock);
|
|
|
|
return (-error);
|
|
}
|
|
|
|
static long
|
|
zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
|
|
{
|
|
zfs_cmd_t *zc;
|
|
uint_t vecnum;
|
|
int error, rc, flag = 0;
|
|
const zfs_ioc_vec_t *vec;
|
|
char *saved_poolname = NULL;
|
|
nvlist_t *innvl = NULL;
|
|
fstrans_cookie_t cookie;
|
|
|
|
vecnum = cmd - ZFS_IOC_FIRST;
|
|
if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
|
|
return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL));
|
|
vec = &zfs_ioc_vec[vecnum];
|
|
|
|
/*
|
|
* The registered ioctl list may be sparse, verify that either
|
|
* a normal or legacy handler are registered.
|
|
*/
|
|
if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL)
|
|
return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL));
|
|
|
|
zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
|
|
|
|
error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
|
|
if (error != 0) {
|
|
error = SET_ERROR(EFAULT);
|
|
goto out;
|
|
}
|
|
|
|
zc->zc_iflags = flag & FKIOCTL;
|
|
if (zc->zc_nvlist_src_size > MAX_NVLIST_SRC_SIZE) {
|
|
/*
|
|
* Make sure the user doesn't pass in an insane value for
|
|
* zc_nvlist_src_size. We have to check, since we will end
|
|
* up allocating that much memory inside of get_nvlist(). This
|
|
* prevents a nefarious user from allocating tons of kernel
|
|
* memory.
|
|
*
|
|
* Also, we return EINVAL instead of ENOMEM here. The reason
|
|
* being that returning ENOMEM from an ioctl() has a special
|
|
* connotation; that the user's size value is too small and
|
|
* needs to be expanded to hold the nvlist. See
|
|
* zcmd_expand_dst_nvlist() for details.
|
|
*/
|
|
error = SET_ERROR(EINVAL); /* User's size too big */
|
|
|
|
} else if (zc->zc_nvlist_src_size != 0) {
|
|
error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
zc->zc_iflags, &innvl);
|
|
if (error != 0)
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Ensure that all pool/dataset names are valid before we pass down to
|
|
* the lower layers.
|
|
*/
|
|
zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
|
|
switch (vec->zvec_namecheck) {
|
|
case POOL_NAME:
|
|
if (pool_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;
|
|
|
|
case DATASET_NAME:
|
|
if (dataset_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;
|
|
|
|
case NO_NAME:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Ensure that all input pairs are valid before we pass them down
|
|
* to the lower layers.
|
|
*
|
|
* The vectored functions can use fnvlist_lookup_{type} for any
|
|
* required pairs since zfs_check_input_nvpairs() confirmed that
|
|
* they exist and are of the correct type.
|
|
*/
|
|
if (error == 0 && vec->zvec_func != NULL) {
|
|
error = zfs_check_input_nvpairs(innvl, vec);
|
|
if (error != 0)
|
|
goto out;
|
|
}
|
|
|
|
if (error == 0) {
|
|
cookie = spl_fstrans_mark();
|
|
error = vec->zvec_secpolicy(zc, innvl, CRED());
|
|
spl_fstrans_unmark(cookie);
|
|
}
|
|
|
|
if (error != 0)
|
|
goto out;
|
|
|
|
/* legacy ioctls can modify zc_name */
|
|
saved_poolname = strdup(zc->zc_name);
|
|
if (saved_poolname == NULL) {
|
|
error = SET_ERROR(ENOMEM);
|
|
goto out;
|
|
} else {
|
|
saved_poolname[strcspn(saved_poolname, "/@#")] = '\0';
|
|
}
|
|
|
|
if (vec->zvec_func != NULL) {
|
|
nvlist_t *outnvl;
|
|
int puterror = 0;
|
|
spa_t *spa;
|
|
nvlist_t *lognv = NULL;
|
|
|
|
ASSERT(vec->zvec_legacy_func == NULL);
|
|
|
|
/*
|
|
* Add the innvl to the lognv before calling the func,
|
|
* in case the func changes the innvl.
|
|
*/
|
|
if (vec->zvec_allow_log) {
|
|
lognv = fnvlist_alloc();
|
|
fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL,
|
|
vec->zvec_name);
|
|
if (!nvlist_empty(innvl)) {
|
|
fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL,
|
|
innvl);
|
|
}
|
|
}
|
|
|
|
outnvl = fnvlist_alloc();
|
|
cookie = spl_fstrans_mark();
|
|
error = vec->zvec_func(zc->zc_name, innvl, outnvl);
|
|
spl_fstrans_unmark(cookie);
|
|
|
|
/*
|
|
* Some commands can partially execute, modify state, and still
|
|
* return an error. In these cases, attempt to record what
|
|
* was modified.
|
|
*/
|
|
if ((error == 0 ||
|
|
(cmd == ZFS_IOC_CHANNEL_PROGRAM && error != EINVAL)) &&
|
|
vec->zvec_allow_log &&
|
|
spa_open(zc->zc_name, &spa, FTAG) == 0) {
|
|
if (!nvlist_empty(outnvl)) {
|
|
fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL,
|
|
outnvl);
|
|
}
|
|
if (error != 0) {
|
|
fnvlist_add_int64(lognv, ZPOOL_HIST_ERRNO,
|
|
error);
|
|
}
|
|
(void) spa_history_log_nvl(spa, lognv);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
fnvlist_free(lognv);
|
|
|
|
if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) {
|
|
int smusherror = 0;
|
|
if (vec->zvec_smush_outnvlist) {
|
|
smusherror = nvlist_smush(outnvl,
|
|
zc->zc_nvlist_dst_size);
|
|
}
|
|
if (smusherror == 0)
|
|
puterror = put_nvlist(zc, outnvl);
|
|
}
|
|
|
|
if (puterror != 0)
|
|
error = puterror;
|
|
|
|
nvlist_free(outnvl);
|
|
} else {
|
|
cookie = spl_fstrans_mark();
|
|
error = vec->zvec_legacy_func(zc);
|
|
spl_fstrans_unmark(cookie);
|
|
}
|
|
|
|
out:
|
|
nvlist_free(innvl);
|
|
rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag);
|
|
if (error == 0 && rc != 0)
|
|
error = SET_ERROR(EFAULT);
|
|
if (error == 0 && vec->zvec_allow_log) {
|
|
char *s = tsd_get(zfs_allow_log_key);
|
|
if (s != NULL)
|
|
strfree(s);
|
|
(void) tsd_set(zfs_allow_log_key, saved_poolname);
|
|
} else {
|
|
if (saved_poolname != NULL)
|
|
strfree(saved_poolname);
|
|
}
|
|
|
|
kmem_free(zc, sizeof (zfs_cmd_t));
|
|
return (-error);
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
static long
|
|
zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
|
|
{
|
|
return (zfsdev_ioctl(filp, cmd, arg));
|
|
}
|
|
#else
|
|
#define zfsdev_compat_ioctl NULL
|
|
#endif
|
|
|
|
static const struct file_operations zfsdev_fops = {
|
|
.open = zfsdev_open,
|
|
.release = zfsdev_release,
|
|
.unlocked_ioctl = zfsdev_ioctl,
|
|
.compat_ioctl = zfsdev_compat_ioctl,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static struct miscdevice zfs_misc = {
|
|
.minor = ZFS_DEVICE_MINOR,
|
|
.name = ZFS_DRIVER,
|
|
.fops = &zfsdev_fops,
|
|
};
|
|
|
|
MODULE_ALIAS_MISCDEV(ZFS_DEVICE_MINOR);
|
|
MODULE_ALIAS("devname:zfs");
|
|
|
|
static int
|
|
zfs_attach(void)
|
|
{
|
|
int error;
|
|
|
|
mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL);
|
|
zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP);
|
|
zfsdev_state_list->zs_minor = -1;
|
|
|
|
error = misc_register(&zfs_misc);
|
|
if (error == -EBUSY) {
|
|
/*
|
|
* Fallback to dynamic minor allocation in the event of a
|
|
* collision with a reserved minor in linux/miscdevice.h.
|
|
* In this case the kernel modules must be manually loaded.
|
|
*/
|
|
printk(KERN_INFO "ZFS: misc_register() with static minor %d "
|
|
"failed %d, retrying with MISC_DYNAMIC_MINOR\n",
|
|
ZFS_DEVICE_MINOR, error);
|
|
|
|
zfs_misc.minor = MISC_DYNAMIC_MINOR;
|
|
error = misc_register(&zfs_misc);
|
|
}
|
|
|
|
if (error)
|
|
printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
zfs_detach(void)
|
|
{
|
|
zfsdev_state_t *zs, *zsprev = NULL;
|
|
|
|
misc_deregister(&zfs_misc);
|
|
mutex_destroy(&zfsdev_state_lock);
|
|
|
|
for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
|
|
if (zsprev)
|
|
kmem_free(zsprev, sizeof (zfsdev_state_t));
|
|
zsprev = zs;
|
|
}
|
|
if (zsprev)
|
|
kmem_free(zsprev, sizeof (zfsdev_state_t));
|
|
}
|
|
|
|
static void
|
|
zfs_allow_log_destroy(void *arg)
|
|
{
|
|
char *poolname = arg;
|
|
|
|
if (poolname != NULL)
|
|
strfree(poolname);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
#define ZFS_DEBUG_STR " (DEBUG mode)"
|
|
#else
|
|
#define ZFS_DEBUG_STR ""
|
|
#endif
|
|
|
|
static int __init
|
|
_init(void)
|
|
{
|
|
int error;
|
|
|
|
error = -vn_set_pwd("/");
|
|
if (error) {
|
|
printk(KERN_NOTICE
|
|
"ZFS: Warning unable to set pwd to '/': %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
if ((error = -zvol_init()) != 0)
|
|
return (error);
|
|
|
|
spa_init(FREAD | FWRITE);
|
|
zfs_init();
|
|
|
|
zfs_ioctl_init();
|
|
zfs_sysfs_init();
|
|
|
|
if ((error = zfs_attach()) != 0)
|
|
goto out;
|
|
|
|
tsd_create(&zfs_fsyncer_key, NULL);
|
|
tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
|
|
tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy);
|
|
|
|
printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, "
|
|
"ZFS pool version %s, ZFS filesystem version %s\n",
|
|
ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR,
|
|
SPA_VERSION_STRING, ZPL_VERSION_STRING);
|
|
#ifndef CONFIG_FS_POSIX_ACL
|
|
printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n");
|
|
#endif /* CONFIG_FS_POSIX_ACL */
|
|
|
|
return (0);
|
|
|
|
out:
|
|
zfs_sysfs_fini();
|
|
zfs_fini();
|
|
spa_fini();
|
|
(void) zvol_fini();
|
|
printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
|
|
", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE,
|
|
ZFS_DEBUG_STR, error);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static void __exit
|
|
_fini(void)
|
|
{
|
|
zfs_detach();
|
|
zfs_sysfs_fini();
|
|
zfs_fini();
|
|
spa_fini();
|
|
zvol_fini();
|
|
|
|
tsd_destroy(&zfs_fsyncer_key);
|
|
tsd_destroy(&rrw_tsd_key);
|
|
tsd_destroy(&zfs_allow_log_key);
|
|
|
|
printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n",
|
|
ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR);
|
|
}
|
|
|
|
#if defined(_KERNEL)
|
|
module_init(_init);
|
|
module_exit(_fini);
|
|
|
|
MODULE_DESCRIPTION("ZFS");
|
|
MODULE_AUTHOR(ZFS_META_AUTHOR);
|
|
MODULE_LICENSE(ZFS_META_LICENSE);
|
|
MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);
|
|
#endif
|