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Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c')
-rw-r--r--cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c5284
1 files changed, 0 insertions, 5284 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c
deleted file mode 100644
index 7075d060c78d..000000000000
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_dataset.c
+++ /dev/null
@@ -1,5284 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2018, Joyent, Inc. All rights reserved.
- * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
- * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved.
- * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved.
- * Copyright (c) 2013 Martin Matuska. All rights reserved.
- * Copyright (c) 2013 Steven Hartland. All rights reserved.
- * Copyright (c) 2014 Integros [integros.com]
- * Copyright 2017 Nexenta Systems, Inc.
- * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
- * Copyright 2017-2018 RackTop Systems.
- * Copyright (c) 2019 Datto Inc.
- */
-
-#include <ctype.h>
-#include <errno.h>
-#include <libintl.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <strings.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <zone.h>
-#include <fcntl.h>
-#include <sys/mntent.h>
-#include <sys/mount.h>
-#include <priv.h>
-#include <pwd.h>
-#include <grp.h>
-#include <stddef.h>
-#ifdef illumos
-#include <idmap.h>
-#endif
-
-#include <sys/dnode.h>
-#include <sys/spa.h>
-#include <sys/zap.h>
-#include <sys/misc.h>
-#include <libzfs.h>
-
-#include "zfs_namecheck.h"
-#include "zfs_prop.h"
-#include "libzfs_impl.h"
-#include "zfs_deleg.h"
-
-static int userquota_propname_decode(const char *propname, boolean_t zoned,
- zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp);
-
-/*
- * Given a single type (not a mask of types), return the type in a human
- * readable form.
- */
-const char *
-zfs_type_to_name(zfs_type_t type)
-{
- switch (type) {
- case ZFS_TYPE_FILESYSTEM:
- return (dgettext(TEXT_DOMAIN, "filesystem"));
- case ZFS_TYPE_SNAPSHOT:
- return (dgettext(TEXT_DOMAIN, "snapshot"));
- case ZFS_TYPE_VOLUME:
- return (dgettext(TEXT_DOMAIN, "volume"));
- case ZFS_TYPE_POOL:
- return (dgettext(TEXT_DOMAIN, "pool"));
- case ZFS_TYPE_BOOKMARK:
- return (dgettext(TEXT_DOMAIN, "bookmark"));
- default:
- assert(!"unhandled zfs_type_t");
- }
-
- return (NULL);
-}
-
-/*
- * Validate a ZFS path. This is used even before trying to open the dataset, to
- * provide a more meaningful error message. We call zfs_error_aux() to
- * explain exactly why the name was not valid.
- */
-int
-zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
- boolean_t modifying)
-{
- namecheck_err_t why;
- char what;
-
- if (entity_namecheck(path, &why, &what) != 0) {
- if (hdl != NULL) {
- switch (why) {
- case NAME_ERR_TOOLONG:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "name is too long"));
- break;
-
- case NAME_ERR_LEADING_SLASH:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "leading slash in name"));
- break;
-
- case NAME_ERR_EMPTY_COMPONENT:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "empty component in name"));
- break;
-
- case NAME_ERR_TRAILING_SLASH:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "trailing slash in name"));
- break;
-
- case NAME_ERR_INVALCHAR:
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN, "invalid character "
- "'%c' in name"), what);
- break;
-
- case NAME_ERR_MULTIPLE_DELIMITERS:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "multiple '@' and/or '#' delimiters in "
- "name"));
- break;
-
- case NAME_ERR_NOLETTER:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool doesn't begin with a letter"));
- break;
-
- case NAME_ERR_RESERVED:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "name is reserved"));
- break;
-
- case NAME_ERR_DISKLIKE:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "reserved disk name"));
- break;
-
- default:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "(%d) not defined"), why);
- break;
- }
- }
-
- return (0);
- }
-
- if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) {
- if (hdl != NULL)
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "snapshot delimiter '@' is not expected here"));
- return (0);
- }
-
- if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) {
- if (hdl != NULL)
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "missing '@' delimiter in snapshot name"));
- return (0);
- }
-
- if (!(type & ZFS_TYPE_BOOKMARK) && strchr(path, '#') != NULL) {
- if (hdl != NULL)
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "bookmark delimiter '#' is not expected here"));
- return (0);
- }
-
- if (type == ZFS_TYPE_BOOKMARK && strchr(path, '#') == NULL) {
- if (hdl != NULL)
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "missing '#' delimiter in bookmark name"));
- return (0);
- }
-
- if (modifying && strchr(path, '%') != NULL) {
- if (hdl != NULL)
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid character %c in name"), '%');
- return (0);
- }
-
- return (-1);
-}
-
-int
-zfs_name_valid(const char *name, zfs_type_t type)
-{
- if (type == ZFS_TYPE_POOL)
- return (zpool_name_valid(NULL, B_FALSE, name));
- return (zfs_validate_name(NULL, name, type, B_FALSE));
-}
-
-/*
- * This function takes the raw DSL properties, and filters out the user-defined
- * properties into a separate nvlist.
- */
-static nvlist_t *
-process_user_props(zfs_handle_t *zhp, nvlist_t *props)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- nvpair_t *elem;
- nvlist_t *propval;
- nvlist_t *nvl;
-
- if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) {
- (void) no_memory(hdl);
- return (NULL);
- }
-
- elem = NULL;
- while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
- if (!zfs_prop_user(nvpair_name(elem)))
- continue;
-
- verify(nvpair_value_nvlist(elem, &propval) == 0);
- if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) {
- nvlist_free(nvl);
- (void) no_memory(hdl);
- return (NULL);
- }
- }
-
- return (nvl);
-}
-
-static zpool_handle_t *
-zpool_add_handle(zfs_handle_t *zhp, const char *pool_name)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- zpool_handle_t *zph;
-
- if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) {
- if (hdl->libzfs_pool_handles != NULL)
- zph->zpool_next = hdl->libzfs_pool_handles;
- hdl->libzfs_pool_handles = zph;
- }
- return (zph);
-}
-
-static zpool_handle_t *
-zpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- zpool_handle_t *zph = hdl->libzfs_pool_handles;
-
- while ((zph != NULL) &&
- (strncmp(pool_name, zpool_get_name(zph), len) != 0))
- zph = zph->zpool_next;
- return (zph);
-}
-
-/*
- * Returns a handle to the pool that contains the provided dataset.
- * If a handle to that pool already exists then that handle is returned.
- * Otherwise, a new handle is created and added to the list of handles.
- */
-static zpool_handle_t *
-zpool_handle(zfs_handle_t *zhp)
-{
- char *pool_name;
- int len;
- zpool_handle_t *zph;
-
- len = strcspn(zhp->zfs_name, "/@#") + 1;
- pool_name = zfs_alloc(zhp->zfs_hdl, len);
- (void) strlcpy(pool_name, zhp->zfs_name, len);
-
- zph = zpool_find_handle(zhp, pool_name, len);
- if (zph == NULL)
- zph = zpool_add_handle(zhp, pool_name);
-
- free(pool_name);
- return (zph);
-}
-
-void
-zpool_free_handles(libzfs_handle_t *hdl)
-{
- zpool_handle_t *next, *zph = hdl->libzfs_pool_handles;
-
- while (zph != NULL) {
- next = zph->zpool_next;
- zpool_close(zph);
- zph = next;
- }
- hdl->libzfs_pool_handles = NULL;
-}
-
-/*
- * Utility function to gather stats (objset and zpl) for the given object.
- */
-static int
-get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
-
- (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name));
-
- while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) {
- if (errno == ENOMEM) {
- if (zcmd_expand_dst_nvlist(hdl, zc) != 0) {
- return (-1);
- }
- } else {
- return (-1);
- }
- }
- return (0);
-}
-
-/*
- * Utility function to get the received properties of the given object.
- */
-static int
-get_recvd_props_ioctl(zfs_handle_t *zhp)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- nvlist_t *recvdprops;
- zfs_cmd_t zc = { 0 };
- int err;
-
- if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0)
- return (-1);
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) {
- if (errno == ENOMEM) {
- if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
- return (-1);
- }
- } else {
- zcmd_free_nvlists(&zc);
- return (-1);
- }
- }
-
- err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops);
- zcmd_free_nvlists(&zc);
- if (err != 0)
- return (-1);
-
- nvlist_free(zhp->zfs_recvd_props);
- zhp->zfs_recvd_props = recvdprops;
-
- return (0);
-}
-
-static int
-put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc)
-{
- nvlist_t *allprops, *userprops;
-
- zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */
-
- if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) {
- return (-1);
- }
-
- /*
- * XXX Why do we store the user props separately, in addition to
- * storing them in zfs_props?
- */
- if ((userprops = process_user_props(zhp, allprops)) == NULL) {
- nvlist_free(allprops);
- return (-1);
- }
-
- nvlist_free(zhp->zfs_props);
- nvlist_free(zhp->zfs_user_props);
-
- zhp->zfs_props = allprops;
- zhp->zfs_user_props = userprops;
-
- return (0);
-}
-
-static int
-get_stats(zfs_handle_t *zhp)
-{
- int rc = 0;
- zfs_cmd_t zc = { 0 };
-
- if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0)
- return (-1);
- if (get_stats_ioctl(zhp, &zc) != 0)
- rc = -1;
- else if (put_stats_zhdl(zhp, &zc) != 0)
- rc = -1;
- zcmd_free_nvlists(&zc);
- return (rc);
-}
-
-/*
- * Refresh the properties currently stored in the handle.
- */
-void
-zfs_refresh_properties(zfs_handle_t *zhp)
-{
- (void) get_stats(zhp);
-}
-
-/*
- * Makes a handle from the given dataset name. Used by zfs_open() and
- * zfs_iter_* to create child handles on the fly.
- */
-static int
-make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc)
-{
- if (put_stats_zhdl(zhp, zc) != 0)
- return (-1);
-
- /*
- * We've managed to open the dataset and gather statistics. Determine
- * the high-level type.
- */
- if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL)
- zhp->zfs_head_type = ZFS_TYPE_VOLUME;
- else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS)
- zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM;
- else if (zhp->zfs_dmustats.dds_type == DMU_OST_OTHER)
- return (-1);
- else
- abort();
-
- if (zhp->zfs_dmustats.dds_is_snapshot)
- zhp->zfs_type = ZFS_TYPE_SNAPSHOT;
- else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL)
- zhp->zfs_type = ZFS_TYPE_VOLUME;
- else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS)
- zhp->zfs_type = ZFS_TYPE_FILESYSTEM;
- else
- abort(); /* we should never see any other types */
-
- if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL)
- return (-1);
-
- return (0);
-}
-
-zfs_handle_t *
-make_dataset_handle(libzfs_handle_t *hdl, const char *path)
-{
- zfs_cmd_t zc = { 0 };
-
- zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1);
-
- if (zhp == NULL)
- return (NULL);
-
- zhp->zfs_hdl = hdl;
- (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name));
- if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) {
- free(zhp);
- return (NULL);
- }
- if (get_stats_ioctl(zhp, &zc) == -1) {
- zcmd_free_nvlists(&zc);
- free(zhp);
- return (NULL);
- }
- if (make_dataset_handle_common(zhp, &zc) == -1) {
- free(zhp);
- zhp = NULL;
- }
- zcmd_free_nvlists(&zc);
- return (zhp);
-}
-
-zfs_handle_t *
-make_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc)
-{
- zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1);
-
- if (zhp == NULL)
- return (NULL);
-
- zhp->zfs_hdl = hdl;
- (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name));
- if (make_dataset_handle_common(zhp, zc) == -1) {
- free(zhp);
- return (NULL);
- }
- return (zhp);
-}
-
-zfs_handle_t *
-make_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc)
-{
- zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1);
-
- if (zhp == NULL)
- return (NULL);
-
- zhp->zfs_hdl = pzhp->zfs_hdl;
- (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name));
- zhp->zfs_head_type = pzhp->zfs_type;
- zhp->zfs_type = ZFS_TYPE_SNAPSHOT;
- zhp->zpool_hdl = zpool_handle(zhp);
- return (zhp);
-}
-
-zfs_handle_t *
-zfs_handle_dup(zfs_handle_t *zhp_orig)
-{
- zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1);
-
- if (zhp == NULL)
- return (NULL);
-
- zhp->zfs_hdl = zhp_orig->zfs_hdl;
- zhp->zpool_hdl = zhp_orig->zpool_hdl;
- (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name,
- sizeof (zhp->zfs_name));
- zhp->zfs_type = zhp_orig->zfs_type;
- zhp->zfs_head_type = zhp_orig->zfs_head_type;
- zhp->zfs_dmustats = zhp_orig->zfs_dmustats;
- if (zhp_orig->zfs_props != NULL) {
- if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) {
- (void) no_memory(zhp->zfs_hdl);
- zfs_close(zhp);
- return (NULL);
- }
- }
- if (zhp_orig->zfs_user_props != NULL) {
- if (nvlist_dup(zhp_orig->zfs_user_props,
- &zhp->zfs_user_props, 0) != 0) {
- (void) no_memory(zhp->zfs_hdl);
- zfs_close(zhp);
- return (NULL);
- }
- }
- if (zhp_orig->zfs_recvd_props != NULL) {
- if (nvlist_dup(zhp_orig->zfs_recvd_props,
- &zhp->zfs_recvd_props, 0)) {
- (void) no_memory(zhp->zfs_hdl);
- zfs_close(zhp);
- return (NULL);
- }
- }
- zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck;
- if (zhp_orig->zfs_mntopts != NULL) {
- zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl,
- zhp_orig->zfs_mntopts);
- }
- zhp->zfs_props_table = zhp_orig->zfs_props_table;
- return (zhp);
-}
-
-boolean_t
-zfs_bookmark_exists(const char *path)
-{
- nvlist_t *bmarks;
- nvlist_t *props;
- char fsname[ZFS_MAX_DATASET_NAME_LEN];
- char *bmark_name;
- char *pound;
- int err;
- boolean_t rv;
-
-
- (void) strlcpy(fsname, path, sizeof (fsname));
- pound = strchr(fsname, '#');
- if (pound == NULL)
- return (B_FALSE);
-
- *pound = '\0';
- bmark_name = pound + 1;
- props = fnvlist_alloc();
- err = lzc_get_bookmarks(fsname, props, &bmarks);
- nvlist_free(props);
- if (err != 0) {
- nvlist_free(bmarks);
- return (B_FALSE);
- }
-
- rv = nvlist_exists(bmarks, bmark_name);
- nvlist_free(bmarks);
- return (rv);
-}
-
-zfs_handle_t *
-make_bookmark_handle(zfs_handle_t *parent, const char *path,
- nvlist_t *bmark_props)
-{
- zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1);
-
- if (zhp == NULL)
- return (NULL);
-
- /* Fill in the name. */
- zhp->zfs_hdl = parent->zfs_hdl;
- (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name));
-
- /* Set the property lists. */
- if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) {
- free(zhp);
- return (NULL);
- }
-
- /* Set the types. */
- zhp->zfs_head_type = parent->zfs_head_type;
- zhp->zfs_type = ZFS_TYPE_BOOKMARK;
-
- if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) {
- nvlist_free(zhp->zfs_props);
- free(zhp);
- return (NULL);
- }
-
- return (zhp);
-}
-
-struct zfs_open_bookmarks_cb_data {
- const char *path;
- zfs_handle_t *zhp;
-};
-
-static int
-zfs_open_bookmarks_cb(zfs_handle_t *zhp, void *data)
-{
- struct zfs_open_bookmarks_cb_data *dp = data;
-
- /*
- * Is it the one we are looking for?
- */
- if (strcmp(dp->path, zfs_get_name(zhp)) == 0) {
- /*
- * We found it. Save it and let the caller know we are done.
- */
- dp->zhp = zhp;
- return (EEXIST);
- }
-
- /*
- * Not found. Close the handle and ask for another one.
- */
- zfs_close(zhp);
- return (0);
-}
-
-/*
- * Opens the given snapshot, bookmark, filesystem, or volume. The 'types'
- * argument is a mask of acceptable types. The function will print an
- * appropriate error message and return NULL if it can't be opened.
- */
-zfs_handle_t *
-zfs_open(libzfs_handle_t *hdl, const char *path, int types)
-{
- zfs_handle_t *zhp;
- char errbuf[1024];
- char *bookp;
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot open '%s'"), path);
-
- /*
- * Validate the name before we even try to open it.
- */
- if (!zfs_validate_name(hdl, path, types, B_FALSE)) {
- (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
- return (NULL);
- }
-
- /*
- * Bookmarks needs to be handled separately.
- */
- bookp = strchr(path, '#');
- if (bookp == NULL) {
- /*
- * Try to get stats for the dataset, which will tell us if it
- * exists.
- */
- errno = 0;
- if ((zhp = make_dataset_handle(hdl, path)) == NULL) {
- (void) zfs_standard_error(hdl, errno, errbuf);
- return (NULL);
- }
- } else {
- char dsname[ZFS_MAX_DATASET_NAME_LEN];
- zfs_handle_t *pzhp;
- struct zfs_open_bookmarks_cb_data cb_data = {path, NULL};
-
- /*
- * We need to cut out '#' and everything after '#'
- * to get the parent dataset name only.
- */
- assert(bookp - path < sizeof (dsname));
- (void) strncpy(dsname, path, bookp - path);
- dsname[bookp - path] = '\0';
-
- /*
- * Create handle for the parent dataset.
- */
- errno = 0;
- if ((pzhp = make_dataset_handle(hdl, dsname)) == NULL) {
- (void) zfs_standard_error(hdl, errno, errbuf);
- return (NULL);
- }
-
- /*
- * Iterate bookmarks to find the right one.
- */
- errno = 0;
- if ((zfs_iter_bookmarks(pzhp, zfs_open_bookmarks_cb,
- &cb_data) == 0) && (cb_data.zhp == NULL)) {
- (void) zfs_error(hdl, EZFS_NOENT, errbuf);
- zfs_close(pzhp);
- return (NULL);
- }
- if (cb_data.zhp == NULL) {
- (void) zfs_standard_error(hdl, errno, errbuf);
- zfs_close(pzhp);
- return (NULL);
- }
- zhp = cb_data.zhp;
-
- /*
- * Cleanup.
- */
- zfs_close(pzhp);
- }
-
- if (zhp == NULL) {
- char *at = strchr(path, '@');
-
- if (at != NULL)
- *at = '\0';
- errno = 0;
- if ((zhp = make_dataset_handle(hdl, path)) == NULL) {
- (void) zfs_standard_error(hdl, errno, errbuf);
- return (NULL);
- }
- if (at != NULL)
- *at = '@';
- (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name));
- zhp->zfs_type = ZFS_TYPE_SNAPSHOT;
- }
-
- if (!(types & zhp->zfs_type)) {
- (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
- zfs_close(zhp);
- return (NULL);
- }
-
- return (zhp);
-}
-
-/*
- * Release a ZFS handle. Nothing to do but free the associated memory.
- */
-void
-zfs_close(zfs_handle_t *zhp)
-{
- if (zhp->zfs_mntopts)
- free(zhp->zfs_mntopts);
- nvlist_free(zhp->zfs_props);
- nvlist_free(zhp->zfs_user_props);
- nvlist_free(zhp->zfs_recvd_props);
- free(zhp);
-}
-
-typedef struct mnttab_node {
- struct mnttab mtn_mt;
- avl_node_t mtn_node;
-} mnttab_node_t;
-
-static int
-libzfs_mnttab_cache_compare(const void *arg1, const void *arg2)
-{
- const mnttab_node_t *mtn1 = (const mnttab_node_t *)arg1;
- const mnttab_node_t *mtn2 = (const mnttab_node_t *)arg2;
- int rv;
-
- rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special);
-
- return (AVL_ISIGN(rv));
-}
-
-void
-libzfs_mnttab_init(libzfs_handle_t *hdl)
-{
- pthread_mutex_init(&hdl->libzfs_mnttab_cache_lock, NULL);
- assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0);
- avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare,
- sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node));
-}
-
-void
-libzfs_mnttab_update(libzfs_handle_t *hdl)
-{
- struct mnttab entry;
-
- rewind(hdl->libzfs_mnttab);
- while (getmntent(hdl->libzfs_mnttab, &entry) == 0) {
- mnttab_node_t *mtn;
-
- if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0)
- continue;
- mtn = zfs_alloc(hdl, sizeof (mnttab_node_t));
- mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special);
- mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp);
- mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype);
- mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts);
- avl_add(&hdl->libzfs_mnttab_cache, mtn);
- }
-}
-
-void
-libzfs_mnttab_fini(libzfs_handle_t *hdl)
-{
- void *cookie = NULL;
- mnttab_node_t *mtn;
-
- while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie))
- != NULL) {
- free(mtn->mtn_mt.mnt_special);
- free(mtn->mtn_mt.mnt_mountp);
- free(mtn->mtn_mt.mnt_fstype);
- free(mtn->mtn_mt.mnt_mntopts);
- free(mtn);
- }
- avl_destroy(&hdl->libzfs_mnttab_cache);
- (void) pthread_mutex_destroy(&hdl->libzfs_mnttab_cache_lock);
-}
-
-void
-libzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable)
-{
- hdl->libzfs_mnttab_enable = enable;
-}
-
-int
-libzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname,
- struct mnttab *entry)
-{
- mnttab_node_t find;
- mnttab_node_t *mtn;
- int ret = ENOENT;
-
- if (!hdl->libzfs_mnttab_enable) {
- struct mnttab srch = { 0 };
-
- if (avl_numnodes(&hdl->libzfs_mnttab_cache))
- libzfs_mnttab_fini(hdl);
- rewind(hdl->libzfs_mnttab);
- srch.mnt_special = (char *)fsname;
- srch.mnt_fstype = MNTTYPE_ZFS;
- if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0)
- return (0);
- else
- return (ENOENT);
- }
-
- pthread_mutex_lock(&hdl->libzfs_mnttab_cache_lock);
- if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0)
- libzfs_mnttab_update(hdl);
-
- find.mtn_mt.mnt_special = (char *)fsname;
- mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL);
- if (mtn) {
- *entry = mtn->mtn_mt;
- ret = 0;
- }
- pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock);
- return (ret);
-}
-
-void
-libzfs_mnttab_add(libzfs_handle_t *hdl, const char *special,
- const char *mountp, const char *mntopts)
-{
- mnttab_node_t *mtn;
-
- pthread_mutex_lock(&hdl->libzfs_mnttab_cache_lock);
- if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) {
- mtn = zfs_alloc(hdl, sizeof (mnttab_node_t));
- mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special);
- mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp);
- mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS);
- mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts);
- avl_add(&hdl->libzfs_mnttab_cache, mtn);
- }
- pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock);
-}
-
-void
-libzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname)
-{
- mnttab_node_t find;
- mnttab_node_t *ret;
-
- pthread_mutex_lock(&hdl->libzfs_mnttab_cache_lock);
- find.mtn_mt.mnt_special = (char *)fsname;
- if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL))
- != NULL) {
- avl_remove(&hdl->libzfs_mnttab_cache, ret);
- free(ret->mtn_mt.mnt_special);
- free(ret->mtn_mt.mnt_mountp);
- free(ret->mtn_mt.mnt_fstype);
- free(ret->mtn_mt.mnt_mntopts);
- free(ret);
- }
- pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock);
-}
-
-int
-zfs_spa_version(zfs_handle_t *zhp, int *spa_version)
-{
- zpool_handle_t *zpool_handle = zhp->zpool_hdl;
-
- if (zpool_handle == NULL)
- return (-1);
-
- *spa_version = zpool_get_prop_int(zpool_handle,
- ZPOOL_PROP_VERSION, NULL);
- return (0);
-}
-
-/*
- * The choice of reservation property depends on the SPA version.
- */
-static int
-zfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop)
-{
- int spa_version;
-
- if (zfs_spa_version(zhp, &spa_version) < 0)
- return (-1);
-
- if (spa_version >= SPA_VERSION_REFRESERVATION)
- *resv_prop = ZFS_PROP_REFRESERVATION;
- else
- *resv_prop = ZFS_PROP_RESERVATION;
-
- return (0);
-}
-
-/*
- * Given an nvlist of properties to set, validates that they are correct, and
- * parses any numeric properties (index, boolean, etc) if they are specified as
- * strings.
- */
-nvlist_t *
-zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl,
- uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl,
- const char *errbuf)
-{
- nvpair_t *elem;
- uint64_t intval;
- char *strval;
- zfs_prop_t prop;
- nvlist_t *ret;
- int chosen_normal = -1;
- int chosen_utf = -1;
-
- if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) {
- (void) no_memory(hdl);
- return (NULL);
- }
-
- /*
- * Make sure this property is valid and applies to this type.
- */
-
- elem = NULL;
- while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
- const char *propname = nvpair_name(elem);
-
- prop = zfs_name_to_prop(propname);
- if (prop == ZPROP_INVAL && zfs_prop_user(propname)) {
- /*
- * This is a user property: make sure it's a
- * string, and that it's less than ZAP_MAXNAMELEN.
- */
- if (nvpair_type(elem) != DATA_TYPE_STRING) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be a string"), propname);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
-
- if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "property name '%s' is too long"),
- propname);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
-
- (void) nvpair_value_string(elem, &strval);
- if (nvlist_add_string(ret, propname, strval) != 0) {
- (void) no_memory(hdl);
- goto error;
- }
- continue;
- }
-
- /*
- * Currently, only user properties can be modified on
- * snapshots.
- */
- if (type == ZFS_TYPE_SNAPSHOT) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "this property can not be modified for snapshots"));
- (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf);
- goto error;
- }
-
- if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) {
- zfs_userquota_prop_t uqtype;
- char newpropname[128];
- char domain[128];
- uint64_t rid;
- uint64_t valary[3];
-
- if (userquota_propname_decode(propname, zoned,
- &uqtype, domain, sizeof (domain), &rid) != 0) {
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN,
- "'%s' has an invalid user/group name"),
- propname);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
-
- if (uqtype != ZFS_PROP_USERQUOTA &&
- uqtype != ZFS_PROP_GROUPQUOTA) {
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN, "'%s' is readonly"),
- propname);
- (void) zfs_error(hdl, EZFS_PROPREADONLY,
- errbuf);
- goto error;
- }
-
- if (nvpair_type(elem) == DATA_TYPE_STRING) {
- (void) nvpair_value_string(elem, &strval);
- if (strcmp(strval, "none") == 0) {
- intval = 0;
- } else if (zfs_nicestrtonum(hdl,
- strval, &intval) != 0) {
- (void) zfs_error(hdl,
- EZFS_BADPROP, errbuf);
- goto error;
- }
- } else if (nvpair_type(elem) ==
- DATA_TYPE_UINT64) {
- (void) nvpair_value_uint64(elem, &intval);
- if (intval == 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "use 'none' to disable "
- "userquota/groupquota"));
- goto error;
- }
- } else {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be a number"), propname);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
-
- /*
- * Encode the prop name as
- * userquota@<hex-rid>-domain, to make it easy
- * for the kernel to decode.
- */
- (void) snprintf(newpropname, sizeof (newpropname),
- "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype],
- (longlong_t)rid, domain);
- valary[0] = uqtype;
- valary[1] = rid;
- valary[2] = intval;
- if (nvlist_add_uint64_array(ret, newpropname,
- valary, 3) != 0) {
- (void) no_memory(hdl);
- goto error;
- }
- continue;
- } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' is readonly"),
- propname);
- (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf);
- goto error;
- }
-
- if (prop == ZPROP_INVAL) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid property '%s'"), propname);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
-
- if (!zfs_prop_valid_for_type(prop, type)) {
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN, "'%s' does not "
- "apply to datasets of this type"), propname);
- (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf);
- goto error;
- }
-
- if (zfs_prop_readonly(prop) &&
- (!zfs_prop_setonce(prop) || zhp != NULL)) {
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN, "'%s' is readonly"),
- propname);
- (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf);
- goto error;
- }
-
- if (zprop_parse_value(hdl, elem, prop, type, ret,
- &strval, &intval, errbuf) != 0)
- goto error;
-
- /*
- * Perform some additional checks for specific properties.
- */
- switch (prop) {
- case ZFS_PROP_VERSION:
- {
- int version;
-
- if (zhp == NULL)
- break;
- version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
- if (intval < version) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "Can not downgrade; already at version %u"),
- version);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
- break;
- }
-
- case ZFS_PROP_VOLBLOCKSIZE:
- case ZFS_PROP_RECORDSIZE:
- {
- int maxbs = SPA_MAXBLOCKSIZE;
- if (zpool_hdl != NULL) {
- maxbs = zpool_get_prop_int(zpool_hdl,
- ZPOOL_PROP_MAXBLOCKSIZE, NULL);
- }
- /*
- * Volumes are limited to a volblocksize of 128KB,
- * because they typically service workloads with
- * small random writes, which incur a large performance
- * penalty with large blocks.
- */
- if (prop == ZFS_PROP_VOLBLOCKSIZE)
- maxbs = SPA_OLD_MAXBLOCKSIZE;
- /*
- * The value must be a power of two between
- * SPA_MINBLOCKSIZE and maxbs.
- */
- if (intval < SPA_MINBLOCKSIZE ||
- intval > maxbs || !ISP2(intval)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be power of 2 from 512B "
- "to %uKB"), propname, maxbs >> 10);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
- break;
- }
-
- case ZFS_PROP_SPECIAL_SMALL_BLOCKS:
- if (zpool_hdl != NULL) {
- char state[64] = "";
-
- /*
- * Issue a warning but do not fail so that
- * tests for setable properties succeed.
- */
- if (zpool_prop_get_feature(zpool_hdl,
- "feature@allocation_classes", state,
- sizeof (state)) != 0 ||
- strcmp(state, ZFS_FEATURE_ACTIVE) != 0) {
- (void) fprintf(stderr, gettext(
- "%s: property requires a special "
- "device in the pool\n"), propname);
- }
- }
- if (intval != 0 &&
- (intval < SPA_MINBLOCKSIZE ||
- intval > SPA_OLD_MAXBLOCKSIZE || !ISP2(intval))) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid '%s=%d' property: must be zero or "
- "a power of 2 from 512B to 128K"), propname,
- intval);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
- break;
-
- case ZFS_PROP_MLSLABEL:
- {
-#ifdef illumos
- /*
- * Verify the mlslabel string and convert to
- * internal hex label string.
- */
-
- m_label_t *new_sl;
- char *hex = NULL; /* internal label string */
-
- /* Default value is already OK. */
- if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0)
- break;
-
- /* Verify the label can be converted to binary form */
- if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) ||
- (str_to_label(strval, &new_sl, MAC_LABEL,
- L_NO_CORRECTION, NULL) == -1)) {
- goto badlabel;
- }
-
- /* Now translate to hex internal label string */
- if (label_to_str(new_sl, &hex, M_INTERNAL,
- DEF_NAMES) != 0) {
- if (hex)
- free(hex);
- goto badlabel;
- }
- m_label_free(new_sl);
-
- /* If string is already in internal form, we're done. */
- if (strcmp(strval, hex) == 0) {
- free(hex);
- break;
- }
-
- /* Replace the label string with the internal form. */
- (void) nvlist_remove(ret, zfs_prop_to_name(prop),
- DATA_TYPE_STRING);
- verify(nvlist_add_string(ret, zfs_prop_to_name(prop),
- hex) == 0);
- free(hex);
-
- break;
-
-badlabel:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid mlslabel '%s'"), strval);
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- m_label_free(new_sl); /* OK if null */
-#else /* !illumos */
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "mlslabel is not supported on FreeBSD"));
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
-#endif /* illumos */
- goto error;
-
- }
-
- case ZFS_PROP_MOUNTPOINT:
- {
- namecheck_err_t why;
-
- if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 ||
- strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0)
- break;
-
- if (mountpoint_namecheck(strval, &why)) {
- switch (why) {
- case NAME_ERR_LEADING_SLASH:
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN,
- "'%s' must be an absolute path, "
- "'none', or 'legacy'"), propname);
- break;
- case NAME_ERR_TOOLONG:
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN,
- "component of '%s' is too long"),
- propname);
- break;
-
- default:
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN,
- "(%d) not defined"),
- why);
- break;
- }
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
- }
-
- /*FALLTHRU*/
-
- case ZFS_PROP_SHARESMB:
- case ZFS_PROP_SHARENFS:
- /*
- * For the mountpoint and sharenfs or sharesmb
- * properties, check if it can be set in a
- * global/non-global zone based on
- * the zoned property value:
- *
- * global zone non-global zone
- * --------------------------------------------------
- * zoned=on mountpoint (no) mountpoint (yes)
- * sharenfs (no) sharenfs (no)
- * sharesmb (no) sharesmb (no)
- *
- * zoned=off mountpoint (yes) N/A
- * sharenfs (yes)
- * sharesmb (yes)
- */
- if (zoned) {
- if (getzoneid() == GLOBAL_ZONEID) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' cannot be set on "
- "dataset in a non-global zone"),
- propname);
- (void) zfs_error(hdl, EZFS_ZONED,
- errbuf);
- goto error;
- } else if (prop == ZFS_PROP_SHARENFS ||
- prop == ZFS_PROP_SHARESMB) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' cannot be set in "
- "a non-global zone"), propname);
- (void) zfs_error(hdl, EZFS_ZONED,
- errbuf);
- goto error;
- }
- } else if (getzoneid() != GLOBAL_ZONEID) {
- /*
- * If zoned property is 'off', this must be in
- * a global zone. If not, something is wrong.
- */
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' cannot be set while dataset "
- "'zoned' property is set"), propname);
- (void) zfs_error(hdl, EZFS_ZONED, errbuf);
- goto error;
- }
-
- /*
- * At this point, it is legitimate to set the
- * property. Now we want to make sure that the
- * property value is valid if it is sharenfs.
- */
- if ((prop == ZFS_PROP_SHARENFS ||
- prop == ZFS_PROP_SHARESMB) &&
- strcmp(strval, "on") != 0 &&
- strcmp(strval, "off") != 0) {
- zfs_share_proto_t proto;
-
- if (prop == ZFS_PROP_SHARESMB)
- proto = PROTO_SMB;
- else
- proto = PROTO_NFS;
-
- /*
- * Must be an valid sharing protocol
- * option string so init the libshare
- * in order to enable the parser and
- * then parse the options. We use the
- * control API since we don't care about
- * the current configuration and don't
- * want the overhead of loading it
- * until we actually do something.
- */
-
- if (zfs_init_libshare(hdl,
- SA_INIT_CONTROL_API) != SA_OK) {
- /*
- * An error occurred so we can't do
- * anything
- */
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' cannot be set: problem "
- "in share initialization"),
- propname);
- (void) zfs_error(hdl, EZFS_BADPROP,
- errbuf);
- goto error;
- }
-
- if (zfs_parse_options(strval, proto) != SA_OK) {
- /*
- * There was an error in parsing so
- * deal with it by issuing an error
- * message and leaving after
- * uninitializing the the libshare
- * interface.
- */
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' cannot be set to invalid "
- "options"), propname);
- (void) zfs_error(hdl, EZFS_BADPROP,
- errbuf);
- zfs_uninit_libshare(hdl);
- goto error;
- }
- zfs_uninit_libshare(hdl);
- }
-
- break;
-
- case ZFS_PROP_UTF8ONLY:
- chosen_utf = (int)intval;
- break;
-
- case ZFS_PROP_NORMALIZE:
- chosen_normal = (int)intval;
- break;
-
- default:
- break;
- }
-
- /*
- * For changes to existing volumes, we have some additional
- * checks to enforce.
- */
- if (type == ZFS_TYPE_VOLUME && zhp != NULL) {
- uint64_t volsize = zfs_prop_get_int(zhp,
- ZFS_PROP_VOLSIZE);
- uint64_t blocksize = zfs_prop_get_int(zhp,
- ZFS_PROP_VOLBLOCKSIZE);
- char buf[64];
-
- switch (prop) {
- case ZFS_PROP_RESERVATION:
- if (intval > volsize) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' is greater than current "
- "volume size"), propname);
- (void) zfs_error(hdl, EZFS_BADPROP,
- errbuf);
- goto error;
- }
- break;
-
- case ZFS_PROP_REFRESERVATION:
- if (intval > volsize && intval != UINT64_MAX) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' is greater than current "
- "volume size"), propname);
- (void) zfs_error(hdl, EZFS_BADPROP,
- errbuf);
- goto error;
- }
- break;
-
- case ZFS_PROP_VOLSIZE:
- if (intval % blocksize != 0) {
- zfs_nicenum(blocksize, buf,
- sizeof (buf));
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be a multiple of "
- "volume block size (%s)"),
- propname, buf);
- (void) zfs_error(hdl, EZFS_BADPROP,
- errbuf);
- goto error;
- }
-
- if (intval == 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' cannot be zero"),
- propname);
- (void) zfs_error(hdl, EZFS_BADPROP,
- errbuf);
- goto error;
- }
- break;
-
- default:
- break;
- }
- }
- }
-
- /*
- * If normalization was chosen, but no UTF8 choice was made,
- * enforce rejection of non-UTF8 names.
- *
- * If normalization was chosen, but rejecting non-UTF8 names
- * was explicitly not chosen, it is an error.
- */
- if (chosen_normal > 0 && chosen_utf < 0) {
- if (nvlist_add_uint64(ret,
- zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) {
- (void) no_memory(hdl);
- goto error;
- }
- } else if (chosen_normal > 0 && chosen_utf == 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be set 'on' if normalization chosen"),
- zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- goto error;
- }
- return (ret);
-
-error:
- nvlist_free(ret);
- return (NULL);
-}
-
-int
-zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl)
-{
- uint64_t old_volsize;
- uint64_t new_volsize;
- uint64_t old_reservation;
- uint64_t new_reservation;
- zfs_prop_t resv_prop;
- nvlist_t *props;
-
- /*
- * If this is an existing volume, and someone is setting the volsize,
- * make sure that it matches the reservation, or add it if necessary.
- */
- old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
- if (zfs_which_resv_prop(zhp, &resv_prop) < 0)
- return (-1);
- old_reservation = zfs_prop_get_int(zhp, resv_prop);
-
- props = fnvlist_alloc();
- fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
- zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE));
-
- if ((zvol_volsize_to_reservation(old_volsize, props) !=
- old_reservation) || nvlist_exists(nvl,
- zfs_prop_to_name(resv_prop))) {
- fnvlist_free(props);
- return (0);
- }
- if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE),
- &new_volsize) != 0) {
- fnvlist_free(props);
- return (-1);
- }
- new_reservation = zvol_volsize_to_reservation(new_volsize, props);
- fnvlist_free(props);
-
- if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop),
- new_reservation) != 0) {
- (void) no_memory(zhp->zfs_hdl);
- return (-1);
- }
- return (1);
-}
-
-/*
- * Helper for 'zfs {set|clone} refreservation=auto'. Must be called after
- * zfs_valid_proplist(), as it is what sets the UINT64_MAX sentinal value.
- * Return codes must match zfs_add_synthetic_resv().
- */
-static int
-zfs_fix_auto_resv(zfs_handle_t *zhp, nvlist_t *nvl)
-{
- uint64_t volsize;
- uint64_t resvsize;
- zfs_prop_t prop;
- nvlist_t *props;
-
- if (!ZFS_IS_VOLUME(zhp)) {
- return (0);
- }
-
- if (zfs_which_resv_prop(zhp, &prop) != 0) {
- return (-1);
- }
-
- if (prop != ZFS_PROP_REFRESERVATION) {
- return (0);
- }
-
- if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(prop), &resvsize) != 0) {
- /* No value being set, so it can't be "auto" */
- return (0);
- }
- if (resvsize != UINT64_MAX) {
- /* Being set to a value other than "auto" */
- return (0);
- }
-
- props = fnvlist_alloc();
-
- fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
- zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE));
-
- if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE),
- &volsize) != 0) {
- volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
- }
-
- resvsize = zvol_volsize_to_reservation(volsize, props);
- fnvlist_free(props);
-
- (void) nvlist_remove_all(nvl, zfs_prop_to_name(prop));
- if (nvlist_add_uint64(nvl, zfs_prop_to_name(prop), resvsize) != 0) {
- (void) no_memory(zhp->zfs_hdl);
- return (-1);
- }
- return (1);
-}
-
-void
-zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err,
- char *errbuf)
-{
- switch (err) {
-
- case ENOSPC:
- /*
- * For quotas and reservations, ENOSPC indicates
- * something different; setting a quota or reservation
- * doesn't use any disk space.
- */
- switch (prop) {
- case ZFS_PROP_QUOTA:
- case ZFS_PROP_REFQUOTA:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "size is less than current used or "
- "reserved space"));
- (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf);
- break;
-
- case ZFS_PROP_RESERVATION:
- case ZFS_PROP_REFRESERVATION:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "size is greater than available space"));
- (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf);
- break;
-
- default:
- (void) zfs_standard_error(hdl, err, errbuf);
- break;
- }
- break;
-
- case EBUSY:
- (void) zfs_standard_error(hdl, EBUSY, errbuf);
- break;
-
- case EROFS:
- (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf);
- break;
-
- case E2BIG:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "property value too long"));
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- break;
-
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool and or dataset must be upgraded to set this "
- "property or value"));
- (void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
-
- case ERANGE:
- case EDOM:
- if (prop == ZFS_PROP_COMPRESSION ||
- prop == ZFS_PROP_RECORDSIZE) {
- (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "property setting is not allowed on "
- "bootable datasets"));
- (void) zfs_error(hdl, EZFS_NOTSUP, errbuf);
- } else if (prop == ZFS_PROP_CHECKSUM ||
- prop == ZFS_PROP_DEDUP) {
- (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "property setting is not allowed on "
- "root pools"));
- (void) zfs_error(hdl, EZFS_NOTSUP, errbuf);
- } else {
- (void) zfs_standard_error(hdl, err, errbuf);
- }
- break;
-
- case EINVAL:
- if (prop == ZPROP_INVAL) {
- (void) zfs_error(hdl, EZFS_BADPROP, errbuf);
- } else {
- (void) zfs_standard_error(hdl, err, errbuf);
- }
- break;
-
- case EOVERFLOW:
- /*
- * This platform can't address a volume this big.
- */
-#ifdef _ILP32
- if (prop == ZFS_PROP_VOLSIZE) {
- (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf);
- break;
- }
-#endif
- /* FALLTHROUGH */
- default:
- (void) zfs_standard_error(hdl, err, errbuf);
- }
-}
-
-/*
- * Given a property name and value, set the property for the given dataset.
- */
-int
-zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval)
-{
- int ret = -1;
- char errbuf[1024];
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- nvlist_t *nvl = NULL;
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
- zhp->zfs_name);
-
- if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 ||
- nvlist_add_string(nvl, propname, propval) != 0) {
- (void) no_memory(hdl);
- goto error;
- }
-
- ret = zfs_prop_set_list(zhp, nvl);
-
-error:
- nvlist_free(nvl);
- return (ret);
-}
-
-
-
-/*
- * Given an nvlist of property names and values, set the properties for the
- * given dataset.
- */
-int
-zfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props)
-{
- zfs_cmd_t zc = { 0 };
- int ret = -1;
- prop_changelist_t **cls = NULL;
- int cl_idx;
- char errbuf[1024];
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- nvlist_t *nvl;
- int nvl_len;
- int added_resv = 0;
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
- zhp->zfs_name);
-
- if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props,
- zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, zhp->zpool_hdl,
- errbuf)) == NULL)
- goto error;
-
- /*
- * We have to check for any extra properties which need to be added
- * before computing the length of the nvlist.
- */
- for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(nvl, elem)) {
- if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE &&
- (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) {
- goto error;
- }
- }
-
- if (added_resv != 1 &&
- (added_resv = zfs_fix_auto_resv(zhp, nvl)) == -1) {
- goto error;
- }
-
- /*
- * Check how many properties we're setting and allocate an array to
- * store changelist pointers for postfix().
- */
- nvl_len = 0;
- for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(nvl, elem))
- nvl_len++;
- if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL)
- goto error;
-
- cl_idx = 0;
- for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(nvl, elem)) {
-
- zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem));
-
- assert(cl_idx < nvl_len);
- /*
- * We don't want to unmount & remount the dataset when changing
- * its canmount property to 'on' or 'noauto'. We only use
- * the changelist logic to unmount when setting canmount=off.
- */
- if (prop != ZFS_PROP_CANMOUNT ||
- (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF &&
- zfs_is_mounted(zhp, NULL))) {
- cls[cl_idx] = changelist_gather(zhp, prop, 0, 0);
- if (cls[cl_idx] == NULL)
- goto error;
- }
-
- if (prop == ZFS_PROP_MOUNTPOINT &&
- changelist_haszonedchild(cls[cl_idx])) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "child dataset with inherited mountpoint is used "
- "in a non-global zone"));
- ret = zfs_error(hdl, EZFS_ZONED, errbuf);
- goto error;
- }
-
- /* We don't support those properties on FreeBSD. */
- switch (prop) {
- case ZFS_PROP_DEVICES:
- case ZFS_PROP_ISCSIOPTIONS:
- case ZFS_PROP_XATTR:
- case ZFS_PROP_VSCAN:
- case ZFS_PROP_NBMAND:
- case ZFS_PROP_MLSLABEL:
- (void) snprintf(errbuf, sizeof (errbuf),
- "property '%s' not supported on FreeBSD",
- nvpair_name(elem));
- ret = zfs_error(hdl, EZFS_PERM, errbuf);
- goto error;
- }
-
- if (cls[cl_idx] != NULL &&
- (ret = changelist_prefix(cls[cl_idx])) != 0)
- goto error;
-
- cl_idx++;
- }
- assert(cl_idx == nvl_len);
-
- /*
- * Execute the corresponding ioctl() to set this list of properties.
- */
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 ||
- (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0)
- goto error;
-
- ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc);
-
- if (ret != 0) {
- if (zc.zc_nvlist_dst_filled == B_FALSE) {
- (void) zfs_standard_error(hdl, errno, errbuf);
- goto error;
- }
-
- /* Get the list of unset properties back and report them. */
- nvlist_t *errorprops = NULL;
- if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0)
- goto error;
- for (nvpair_t *elem = nvlist_next_nvpair(errorprops, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(errorprops, elem)) {
- zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem));
- zfs_setprop_error(hdl, prop, errno, errbuf);
- }
- nvlist_free(errorprops);
-
- if (added_resv && errno == ENOSPC) {
- /* clean up the volsize property we tried to set */
- uint64_t old_volsize = zfs_prop_get_int(zhp,
- ZFS_PROP_VOLSIZE);
- nvlist_free(nvl);
- nvl = NULL;
- zcmd_free_nvlists(&zc);
-
- if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
- goto error;
- if (nvlist_add_uint64(nvl,
- zfs_prop_to_name(ZFS_PROP_VOLSIZE),
- old_volsize) != 0)
- goto error;
- if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0)
- goto error;
- (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc);
- }
- } else {
- for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) {
- if (cls[cl_idx] != NULL) {
- int clp_err = changelist_postfix(cls[cl_idx]);
- if (clp_err != 0)
- ret = clp_err;
- }
- }
-
- /*
- * Refresh the statistics so the new property value
- * is reflected.
- */
- if (ret == 0)
- (void) get_stats(zhp);
- }
-
-error:
- nvlist_free(nvl);
- zcmd_free_nvlists(&zc);
- if (cls != NULL) {
- for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) {
- if (cls[cl_idx] != NULL)
- changelist_free(cls[cl_idx]);
- }
- free(cls);
- }
- return (ret);
-}
-
-/*
- * Given a property, inherit the value from the parent dataset, or if received
- * is TRUE, revert to the received value, if any.
- */
-int
-zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received)
-{
- zfs_cmd_t zc = { 0 };
- int ret;
- prop_changelist_t *cl;
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- char errbuf[1024];
- zfs_prop_t prop;
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot inherit %s for '%s'"), propname, zhp->zfs_name);
-
- zc.zc_cookie = received;
- if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) {
- /*
- * For user properties, the amount of work we have to do is very
- * small, so just do it here.
- */
- if (!zfs_prop_user(propname)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid property"));
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
- }
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value));
-
- if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0)
- return (zfs_standard_error(hdl, errno, errbuf));
-
- return (0);
- }
-
- /*
- * Verify that this property is inheritable.
- */
- if (zfs_prop_readonly(prop))
- return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf));
-
- if (!zfs_prop_inheritable(prop) && !received)
- return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf));
-
- /*
- * Check to see if the value applies to this type
- */
- if (!zfs_prop_valid_for_type(prop, zhp->zfs_type))
- return (zfs_error(hdl, EZFS_PROPTYPE, errbuf));
-
- /*
- * Normalize the name, to get rid of shorthand abbreviations.
- */
- propname = zfs_prop_to_name(prop);
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value));
-
- if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID &&
- zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "dataset is used in a non-global zone"));
- return (zfs_error(hdl, EZFS_ZONED, errbuf));
- }
-
- /*
- * Determine datasets which will be affected by this change, if any.
- */
- if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL)
- return (-1);
-
- if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "child dataset with inherited mountpoint is used "
- "in a non-global zone"));
- ret = zfs_error(hdl, EZFS_ZONED, errbuf);
- goto error;
- }
-
- if ((ret = changelist_prefix(cl)) != 0)
- goto error;
-
- if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) {
- return (zfs_standard_error(hdl, errno, errbuf));
- } else {
-
- if ((ret = changelist_postfix(cl)) != 0)
- goto error;
-
- /*
- * Refresh the statistics so the new property is reflected.
- */
- (void) get_stats(zhp);
- }
-
-error:
- changelist_free(cl);
- return (ret);
-}
-
-/*
- * True DSL properties are stored in an nvlist. The following two functions
- * extract them appropriately.
- */
-static uint64_t
-getprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source)
-{
- nvlist_t *nv;
- uint64_t value;
-
- *source = NULL;
- if (nvlist_lookup_nvlist(zhp->zfs_props,
- zfs_prop_to_name(prop), &nv) == 0) {
- verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0);
- (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source);
- } else {
- verify(!zhp->zfs_props_table ||
- zhp->zfs_props_table[prop] == B_TRUE);
- value = zfs_prop_default_numeric(prop);
- *source = "";
- }
-
- return (value);
-}
-
-static const char *
-getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source)
-{
- nvlist_t *nv;
- const char *value;
-
- *source = NULL;
- if (nvlist_lookup_nvlist(zhp->zfs_props,
- zfs_prop_to_name(prop), &nv) == 0) {
- value = fnvlist_lookup_string(nv, ZPROP_VALUE);
- (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source);
- } else {
- verify(!zhp->zfs_props_table ||
- zhp->zfs_props_table[prop] == B_TRUE);
- value = zfs_prop_default_string(prop);
- *source = "";
- }
-
- return (value);
-}
-
-static boolean_t
-zfs_is_recvd_props_mode(zfs_handle_t *zhp)
-{
- return (zhp->zfs_props == zhp->zfs_recvd_props);
-}
-
-static void
-zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie)
-{
- *cookie = (uint64_t)(uintptr_t)zhp->zfs_props;
- zhp->zfs_props = zhp->zfs_recvd_props;
-}
-
-static void
-zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie)
-{
- zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie;
- *cookie = 0;
-}
-
-/*
- * Internal function for getting a numeric property. Both zfs_prop_get() and
- * zfs_prop_get_int() are built using this interface.
- *
- * Certain properties can be overridden using 'mount -o'. In this case, scan
- * the contents of the /etc/mnttab entry, searching for the appropriate options.
- * If they differ from the on-disk values, report the current values and mark
- * the source "temporary".
- */
-static int
-get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src,
- char **source, uint64_t *val)
-{
- zfs_cmd_t zc = { 0 };
- nvlist_t *zplprops = NULL;
- struct mnttab mnt;
- char *mntopt_on = NULL;
- char *mntopt_off = NULL;
- boolean_t received = zfs_is_recvd_props_mode(zhp);
-
- *source = NULL;
-
- switch (prop) {
- case ZFS_PROP_ATIME:
- mntopt_on = MNTOPT_ATIME;
- mntopt_off = MNTOPT_NOATIME;
- break;
-
- case ZFS_PROP_DEVICES:
- mntopt_on = MNTOPT_DEVICES;
- mntopt_off = MNTOPT_NODEVICES;
- break;
-
- case ZFS_PROP_EXEC:
- mntopt_on = MNTOPT_EXEC;
- mntopt_off = MNTOPT_NOEXEC;
- break;
-
- case ZFS_PROP_READONLY:
- mntopt_on = MNTOPT_RO;
- mntopt_off = MNTOPT_RW;
- break;
-
- case ZFS_PROP_SETUID:
- mntopt_on = MNTOPT_SETUID;
- mntopt_off = MNTOPT_NOSETUID;
- break;
-
- case ZFS_PROP_XATTR:
- mntopt_on = MNTOPT_XATTR;
- mntopt_off = MNTOPT_NOXATTR;
- break;
-
- case ZFS_PROP_NBMAND:
- mntopt_on = MNTOPT_NBMAND;
- mntopt_off = MNTOPT_NONBMAND;
- break;
-
- default:
- break;
- }
-
- /*
- * Because looking up the mount options is potentially expensive
- * (iterating over all of /etc/mnttab), we defer its calculation until
- * we're looking up a property which requires its presence.
- */
- if (!zhp->zfs_mntcheck &&
- (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) {
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- struct mnttab entry;
-
- if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) {
- zhp->zfs_mntopts = zfs_strdup(hdl,
- entry.mnt_mntopts);
- if (zhp->zfs_mntopts == NULL)
- return (-1);
- }
-
- zhp->zfs_mntcheck = B_TRUE;
- }
-
- if (zhp->zfs_mntopts == NULL)
- mnt.mnt_mntopts = "";
- else
- mnt.mnt_mntopts = zhp->zfs_mntopts;
-
- switch (prop) {
- case ZFS_PROP_ATIME:
- case ZFS_PROP_DEVICES:
- case ZFS_PROP_EXEC:
- case ZFS_PROP_READONLY:
- case ZFS_PROP_SETUID:
- case ZFS_PROP_XATTR:
- case ZFS_PROP_NBMAND:
- *val = getprop_uint64(zhp, prop, source);
-
- if (received)
- break;
-
- if (hasmntopt(&mnt, mntopt_on) && !*val) {
- *val = B_TRUE;
- if (src)
- *src = ZPROP_SRC_TEMPORARY;
- } else if (hasmntopt(&mnt, mntopt_off) && *val) {
- *val = B_FALSE;
- if (src)
- *src = ZPROP_SRC_TEMPORARY;
- }
- break;
-
- case ZFS_PROP_CANMOUNT:
- case ZFS_PROP_VOLSIZE:
- case ZFS_PROP_QUOTA:
- case ZFS_PROP_REFQUOTA:
- case ZFS_PROP_RESERVATION:
- case ZFS_PROP_REFRESERVATION:
- case ZFS_PROP_FILESYSTEM_LIMIT:
- case ZFS_PROP_SNAPSHOT_LIMIT:
- case ZFS_PROP_FILESYSTEM_COUNT:
- case ZFS_PROP_SNAPSHOT_COUNT:
- *val = getprop_uint64(zhp, prop, source);
-
- if (*source == NULL) {
- /* not default, must be local */
- *source = zhp->zfs_name;
- }
- break;
-
- case ZFS_PROP_MOUNTED:
- *val = (zhp->zfs_mntopts != NULL);
- break;
-
- case ZFS_PROP_NUMCLONES:
- *val = zhp->zfs_dmustats.dds_num_clones;
- break;
-
- case ZFS_PROP_VERSION:
- case ZFS_PROP_NORMALIZE:
- case ZFS_PROP_UTF8ONLY:
- case ZFS_PROP_CASE:
- if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) ||
- zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0)
- return (-1);
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) {
- zcmd_free_nvlists(&zc);
- return (-1);
- }
- if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 ||
- nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop),
- val) != 0) {
- zcmd_free_nvlists(&zc);
- return (-1);
- }
- nvlist_free(zplprops);
- zcmd_free_nvlists(&zc);
- break;
-
- case ZFS_PROP_INCONSISTENT:
- *val = zhp->zfs_dmustats.dds_inconsistent;
- break;
-
- default:
- switch (zfs_prop_get_type(prop)) {
- case PROP_TYPE_NUMBER:
- case PROP_TYPE_INDEX:
- *val = getprop_uint64(zhp, prop, source);
- /*
- * If we tried to use a default value for a
- * readonly property, it means that it was not
- * present. Note this only applies to "truly"
- * readonly properties, not set-once properties
- * like volblocksize.
- */
- if (zfs_prop_readonly(prop) &&
- !zfs_prop_setonce(prop) &&
- *source != NULL && (*source)[0] == '\0') {
- *source = NULL;
- return (-1);
- }
- break;
-
- case PROP_TYPE_STRING:
- default:
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "cannot get non-numeric property"));
- return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP,
- dgettext(TEXT_DOMAIN, "internal error")));
- }
- }
-
- return (0);
-}
-
-/*
- * Calculate the source type, given the raw source string.
- */
-static void
-get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source,
- char *statbuf, size_t statlen)
-{
- if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY)
- return;
-
- if (source == NULL) {
- *srctype = ZPROP_SRC_NONE;
- } else if (source[0] == '\0') {
- *srctype = ZPROP_SRC_DEFAULT;
- } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) {
- *srctype = ZPROP_SRC_RECEIVED;
- } else {
- if (strcmp(source, zhp->zfs_name) == 0) {
- *srctype = ZPROP_SRC_LOCAL;
- } else {
- (void) strlcpy(statbuf, source, statlen);
- *srctype = ZPROP_SRC_INHERITED;
- }
- }
-
-}
-
-int
-zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf,
- size_t proplen, boolean_t literal)
-{
- zfs_prop_t prop;
- int err = 0;
-
- if (zhp->zfs_recvd_props == NULL)
- if (get_recvd_props_ioctl(zhp) != 0)
- return (-1);
-
- prop = zfs_name_to_prop(propname);
-
- if (prop != ZPROP_INVAL) {
- uint64_t cookie;
- if (!nvlist_exists(zhp->zfs_recvd_props, propname))
- return (-1);
- zfs_set_recvd_props_mode(zhp, &cookie);
- err = zfs_prop_get(zhp, prop, propbuf, proplen,
- NULL, NULL, 0, literal);
- zfs_unset_recvd_props_mode(zhp, &cookie);
- } else {
- nvlist_t *propval;
- char *recvdval;
- if (nvlist_lookup_nvlist(zhp->zfs_recvd_props,
- propname, &propval) != 0)
- return (-1);
- verify(nvlist_lookup_string(propval, ZPROP_VALUE,
- &recvdval) == 0);
- (void) strlcpy(propbuf, recvdval, proplen);
- }
-
- return (err == 0 ? 0 : -1);
-}
-
-static int
-get_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen)
-{
- nvlist_t *value;
- nvpair_t *pair;
-
- value = zfs_get_clones_nvl(zhp);
- if (value == NULL)
- return (-1);
-
- propbuf[0] = '\0';
- for (pair = nvlist_next_nvpair(value, NULL); pair != NULL;
- pair = nvlist_next_nvpair(value, pair)) {
- if (propbuf[0] != '\0')
- (void) strlcat(propbuf, ",", proplen);
- (void) strlcat(propbuf, nvpair_name(pair), proplen);
- }
-
- return (0);
-}
-
-struct get_clones_arg {
- uint64_t numclones;
- nvlist_t *value;
- const char *origin;
- char buf[ZFS_MAX_DATASET_NAME_LEN];
-};
-
-int
-get_clones_cb(zfs_handle_t *zhp, void *arg)
-{
- struct get_clones_arg *gca = arg;
-
- if (gca->numclones == 0) {
- zfs_close(zhp);
- return (0);
- }
-
- if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf),
- NULL, NULL, 0, B_TRUE) != 0)
- goto out;
- if (strcmp(gca->buf, gca->origin) == 0) {
- fnvlist_add_boolean(gca->value, zfs_get_name(zhp));
- gca->numclones--;
- }
-
-out:
- (void) zfs_iter_children(zhp, get_clones_cb, gca);
- zfs_close(zhp);
- return (0);
-}
-
-nvlist_t *
-zfs_get_clones_nvl(zfs_handle_t *zhp)
-{
- nvlist_t *nv, *value;
-
- if (nvlist_lookup_nvlist(zhp->zfs_props,
- zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) {
- struct get_clones_arg gca;
-
- /*
- * if this is a snapshot, then the kernel wasn't able
- * to get the clones. Do it by slowly iterating.
- */
- if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT)
- return (NULL);
- if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0)
- return (NULL);
- if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) {
- nvlist_free(nv);
- return (NULL);
- }
-
- gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES);
- gca.value = value;
- gca.origin = zhp->zfs_name;
-
- if (gca.numclones != 0) {
- zfs_handle_t *root;
- char pool[ZFS_MAX_DATASET_NAME_LEN];
- char *cp = pool;
-
- /* get the pool name */
- (void) strlcpy(pool, zhp->zfs_name, sizeof (pool));
- (void) strsep(&cp, "/@");
- root = zfs_open(zhp->zfs_hdl, pool,
- ZFS_TYPE_FILESYSTEM);
-
- (void) get_clones_cb(root, &gca);
- }
-
- if (gca.numclones != 0 ||
- nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 ||
- nvlist_add_nvlist(zhp->zfs_props,
- zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) {
- nvlist_free(nv);
- nvlist_free(value);
- return (NULL);
- }
- nvlist_free(nv);
- nvlist_free(value);
- verify(0 == nvlist_lookup_nvlist(zhp->zfs_props,
- zfs_prop_to_name(ZFS_PROP_CLONES), &nv));
- }
-
- verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0);
-
- return (value);
-}
-
-/*
- * Accepts a property and value and checks that the value
- * matches the one found by the channel program. If they are
- * not equal, print both of them.
- */
-void
-zcp_check(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t intval,
- const char *strval)
-{
- if (!zhp->zfs_hdl->libzfs_prop_debug)
- return;
- int error;
- char *poolname = zhp->zpool_hdl->zpool_name;
- const char *program =
- "args = ...\n"
- "ds = args['dataset']\n"
- "prop = args['property']\n"
- "value, setpoint = zfs.get_prop(ds, prop)\n"
- "return {value=value, setpoint=setpoint}\n";
- nvlist_t *outnvl;
- nvlist_t *retnvl;
- nvlist_t *argnvl = fnvlist_alloc();
-
- fnvlist_add_string(argnvl, "dataset", zhp->zfs_name);
- fnvlist_add_string(argnvl, "property", zfs_prop_to_name(prop));
-
- error = lzc_channel_program_nosync(poolname, program,
- 10 * 1000 * 1000, 10 * 1024 * 1024, argnvl, &outnvl);
-
- if (error == 0) {
- retnvl = fnvlist_lookup_nvlist(outnvl, "return");
- if (zfs_prop_get_type(prop) == PROP_TYPE_NUMBER) {
- int64_t ans;
- error = nvlist_lookup_int64(retnvl, "value", &ans);
- if (error != 0) {
- (void) fprintf(stderr, "zcp check error: %u\n",
- error);
- return;
- }
- if (ans != intval) {
- (void) fprintf(stderr,
- "%s: zfs found %lld, but zcp found %lld\n",
- zfs_prop_to_name(prop),
- (longlong_t)intval, (longlong_t)ans);
- }
- } else {
- char *str_ans;
- error = nvlist_lookup_string(retnvl, "value", &str_ans);
- if (error != 0) {
- (void) fprintf(stderr, "zcp check error: %u\n",
- error);
- return;
- }
- if (strcmp(strval, str_ans) != 0) {
- (void) fprintf(stderr,
- "%s: zfs found %s, but zcp found %s\n",
- zfs_prop_to_name(prop),
- strval, str_ans);
- }
- }
- } else {
- (void) fprintf(stderr,
- "zcp check failed, channel program error: %u\n", error);
- }
- nvlist_free(argnvl);
- nvlist_free(outnvl);
-}
-
-/*
- * Retrieve a property from the given object. If 'literal' is specified, then
- * numbers are left as exact values. Otherwise, numbers are converted to a
- * human-readable form.
- *
- * Returns 0 on success, or -1 on error.
- */
-int
-zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen,
- zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal)
-{
- char *source = NULL;
- uint64_t val;
- const char *str;
- const char *strval;
- boolean_t received = zfs_is_recvd_props_mode(zhp);
-
- /*
- * Check to see if this property applies to our object
- */
- if (!zfs_prop_valid_for_type(prop, zhp->zfs_type))
- return (-1);
-
- if (received && zfs_prop_readonly(prop))
- return (-1);
-
- if (src)
- *src = ZPROP_SRC_NONE;
-
- switch (prop) {
- case ZFS_PROP_CREATION:
- /*
- * 'creation' is a time_t stored in the statistics. We convert
- * this into a string unless 'literal' is specified.
- */
- {
- val = getprop_uint64(zhp, prop, &source);
- time_t time = (time_t)val;
- struct tm t;
-
- if (literal ||
- localtime_r(&time, &t) == NULL ||
- strftime(propbuf, proplen, "%a %b %e %k:%M %Y",
- &t) == 0)
- (void) snprintf(propbuf, proplen, "%llu", val);
- }
- zcp_check(zhp, prop, val, NULL);
- break;
-
- case ZFS_PROP_MOUNTPOINT:
- /*
- * Getting the precise mountpoint can be tricky.
- *
- * - for 'none' or 'legacy', return those values.
- * - for inherited mountpoints, we want to take everything
- * after our ancestor and append it to the inherited value.
- *
- * If the pool has an alternate root, we want to prepend that
- * root to any values we return.
- */
-
- str = getprop_string(zhp, prop, &source);
-
- if (str[0] == '/') {
- char buf[MAXPATHLEN];
- char *root = buf;
- const char *relpath;
-
- /*
- * If we inherit the mountpoint, even from a dataset
- * with a received value, the source will be the path of
- * the dataset we inherit from. If source is
- * ZPROP_SOURCE_VAL_RECVD, the received value is not
- * inherited.
- */
- if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) {
- relpath = "";
- } else {
- relpath = zhp->zfs_name + strlen(source);
- if (relpath[0] == '/')
- relpath++;
- }
-
- if ((zpool_get_prop(zhp->zpool_hdl,
- ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL,
- B_FALSE)) || (strcmp(root, "-") == 0))
- root[0] = '\0';
- /*
- * Special case an alternate root of '/'. This will
- * avoid having multiple leading slashes in the
- * mountpoint path.
- */
- if (strcmp(root, "/") == 0)
- root++;
-
- /*
- * If the mountpoint is '/' then skip over this
- * if we are obtaining either an alternate root or
- * an inherited mountpoint.
- */
- if (str[1] == '\0' && (root[0] != '\0' ||
- relpath[0] != '\0'))
- str++;
-
- if (relpath[0] == '\0')
- (void) snprintf(propbuf, proplen, "%s%s",
- root, str);
- else
- (void) snprintf(propbuf, proplen, "%s%s%s%s",
- root, str, relpath[0] == '@' ? "" : "/",
- relpath);
- } else {
- /* 'legacy' or 'none' */
- (void) strlcpy(propbuf, str, proplen);
- }
- zcp_check(zhp, prop, NULL, propbuf);
- break;
-
- case ZFS_PROP_ORIGIN:
- str = getprop_string(zhp, prop, &source);
- if (str == NULL)
- return (-1);
- (void) strlcpy(propbuf, str, proplen);
- zcp_check(zhp, prop, NULL, str);
- break;
-
- case ZFS_PROP_CLONES:
- if (get_clones_string(zhp, propbuf, proplen) != 0)
- return (-1);
- break;
-
- case ZFS_PROP_QUOTA:
- case ZFS_PROP_REFQUOTA:
- case ZFS_PROP_RESERVATION:
- case ZFS_PROP_REFRESERVATION:
-
- if (get_numeric_property(zhp, prop, src, &source, &val) != 0)
- return (-1);
- /*
- * If quota or reservation is 0, we translate this into 'none'
- * (unless literal is set), and indicate that it's the default
- * value. Otherwise, we print the number nicely and indicate
- * that its set locally.
- */
- if (val == 0) {
- if (literal)
- (void) strlcpy(propbuf, "0", proplen);
- else
- (void) strlcpy(propbuf, "none", proplen);
- } else {
- if (literal)
- (void) snprintf(propbuf, proplen, "%llu",
- (u_longlong_t)val);
- else
- zfs_nicenum(val, propbuf, proplen);
- }
- zcp_check(zhp, prop, val, NULL);
- break;
-
- case ZFS_PROP_FILESYSTEM_LIMIT:
- case ZFS_PROP_SNAPSHOT_LIMIT:
- case ZFS_PROP_FILESYSTEM_COUNT:
- case ZFS_PROP_SNAPSHOT_COUNT:
-
- if (get_numeric_property(zhp, prop, src, &source, &val) != 0)
- return (-1);
-
- /*
- * If limit is UINT64_MAX, we translate this into 'none' (unless
- * literal is set), and indicate that it's the default value.
- * Otherwise, we print the number nicely and indicate that it's
- * set locally.
- */
- if (literal) {
- (void) snprintf(propbuf, proplen, "%llu",
- (u_longlong_t)val);
- } else if (val == UINT64_MAX) {
- (void) strlcpy(propbuf, "none", proplen);
- } else {
- zfs_nicenum(val, propbuf, proplen);
- }
-
- zcp_check(zhp, prop, val, NULL);
- break;
-
- case ZFS_PROP_REFRATIO:
- case ZFS_PROP_COMPRESSRATIO:
- if (get_numeric_property(zhp, prop, src, &source, &val) != 0)
- return (-1);
- (void) snprintf(propbuf, proplen, "%llu.%02llux",
- (u_longlong_t)(val / 100),
- (u_longlong_t)(val % 100));
- zcp_check(zhp, prop, val, NULL);
- break;
-
- case ZFS_PROP_TYPE:
- switch (zhp->zfs_type) {
- case ZFS_TYPE_FILESYSTEM:
- str = "filesystem";
- break;
- case ZFS_TYPE_VOLUME:
- str = "volume";
- break;
- case ZFS_TYPE_SNAPSHOT:
- str = "snapshot";
- break;
- case ZFS_TYPE_BOOKMARK:
- str = "bookmark";
- break;
- default:
- abort();
- }
- (void) snprintf(propbuf, proplen, "%s", str);
- zcp_check(zhp, prop, NULL, propbuf);
- break;
-
- case ZFS_PROP_MOUNTED:
- /*
- * The 'mounted' property is a pseudo-property that described
- * whether the filesystem is currently mounted. Even though
- * it's a boolean value, the typical values of "on" and "off"
- * don't make sense, so we translate to "yes" and "no".
- */
- if (get_numeric_property(zhp, ZFS_PROP_MOUNTED,
- src, &source, &val) != 0)
- return (-1);
- if (val)
- (void) strlcpy(propbuf, "yes", proplen);
- else
- (void) strlcpy(propbuf, "no", proplen);
- break;
-
- case ZFS_PROP_NAME:
- /*
- * The 'name' property is a pseudo-property derived from the
- * dataset name. It is presented as a real property to simplify
- * consumers.
- */
- (void) strlcpy(propbuf, zhp->zfs_name, proplen);
- zcp_check(zhp, prop, NULL, propbuf);
- break;
-
- case ZFS_PROP_MLSLABEL:
- {
-#ifdef illumos
- m_label_t *new_sl = NULL;
- char *ascii = NULL; /* human readable label */
-
- (void) strlcpy(propbuf,
- getprop_string(zhp, prop, &source), proplen);
-
- if (literal || (strcasecmp(propbuf,
- ZFS_MLSLABEL_DEFAULT) == 0))
- break;
-
- /*
- * Try to translate the internal hex string to
- * human-readable output. If there are any
- * problems just use the hex string.
- */
-
- if (str_to_label(propbuf, &new_sl, MAC_LABEL,
- L_NO_CORRECTION, NULL) == -1) {
- m_label_free(new_sl);
- break;
- }
-
- if (label_to_str(new_sl, &ascii, M_LABEL,
- DEF_NAMES) != 0) {
- if (ascii)
- free(ascii);
- m_label_free(new_sl);
- break;
- }
- m_label_free(new_sl);
-
- (void) strlcpy(propbuf, ascii, proplen);
- free(ascii);
-#else /* !illumos */
- propbuf[0] = '\0';
-#endif /* illumos */
- }
- break;
-
- case ZFS_PROP_GUID:
- case ZFS_PROP_CREATETXG:
- /*
- * GUIDs are stored as numbers, but they are identifiers.
- * We don't want them to be pretty printed, because pretty
- * printing mangles the ID into a truncated and useless value.
- */
- if (get_numeric_property(zhp, prop, src, &source, &val) != 0)
- return (-1);
- (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val);
- zcp_check(zhp, prop, val, NULL);
- break;
-
- default:
- switch (zfs_prop_get_type(prop)) {
- case PROP_TYPE_NUMBER:
- if (get_numeric_property(zhp, prop, src,
- &source, &val) != 0) {
- return (-1);
- }
-
- if (literal) {
- (void) snprintf(propbuf, proplen, "%llu",
- (u_longlong_t)val);
- } else {
- zfs_nicenum(val, propbuf, proplen);
- }
- zcp_check(zhp, prop, val, NULL);
- break;
-
- case PROP_TYPE_STRING:
- str = getprop_string(zhp, prop, &source);
- if (str == NULL)
- return (-1);
-
- (void) strlcpy(propbuf, str, proplen);
- zcp_check(zhp, prop, NULL, str);
- break;
-
- case PROP_TYPE_INDEX:
- if (get_numeric_property(zhp, prop, src,
- &source, &val) != 0)
- return (-1);
- if (zfs_prop_index_to_string(prop, val, &strval) != 0)
- return (-1);
-
- (void) strlcpy(propbuf, strval, proplen);
- zcp_check(zhp, prop, NULL, strval);
- break;
-
- default:
- abort();
- }
- }
-
- get_source(zhp, src, source, statbuf, statlen);
-
- return (0);
-}
-
-/*
- * Utility function to get the given numeric property. Does no validation that
- * the given property is the appropriate type; should only be used with
- * hard-coded property types.
- */
-uint64_t
-zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop)
-{
- char *source;
- uint64_t val;
-
- (void) get_numeric_property(zhp, prop, NULL, &source, &val);
-
- return (val);
-}
-
-int
-zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val)
-{
- char buf[64];
-
- (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val);
- return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf));
-}
-
-/*
- * Similar to zfs_prop_get(), but returns the value as an integer.
- */
-int
-zfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value,
- zprop_source_t *src, char *statbuf, size_t statlen)
-{
- char *source;
-
- /*
- * Check to see if this property applies to our object
- */
- if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) {
- return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE,
- dgettext(TEXT_DOMAIN, "cannot get property '%s'"),
- zfs_prop_to_name(prop)));
- }
-
- if (src)
- *src = ZPROP_SRC_NONE;
-
- if (get_numeric_property(zhp, prop, src, &source, value) != 0)
- return (-1);
-
- get_source(zhp, src, source, statbuf, statlen);
-
- return (0);
-}
-
-static int
-idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser,
- char **domainp, idmap_rid_t *ridp)
-{
-#ifdef illumos
- idmap_get_handle_t *get_hdl = NULL;
- idmap_stat status;
- int err = EINVAL;
-
- if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS)
- goto out;
-
- if (isuser) {
- err = idmap_get_sidbyuid(get_hdl, id,
- IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status);
- } else {
- err = idmap_get_sidbygid(get_hdl, id,
- IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status);
- }
- if (err == IDMAP_SUCCESS &&
- idmap_get_mappings(get_hdl) == IDMAP_SUCCESS &&
- status == IDMAP_SUCCESS)
- err = 0;
- else
- err = EINVAL;
-out:
- if (get_hdl)
- idmap_get_destroy(get_hdl);
- return (err);
-#else /* !illumos */
- assert(!"invalid code path");
- return (EINVAL); // silence compiler warning
-#endif /* illumos */
-}
-
-/*
- * convert the propname into parameters needed by kernel
- * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829
- * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789
- */
-static int
-userquota_propname_decode(const char *propname, boolean_t zoned,
- zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp)
-{
- zfs_userquota_prop_t type;
- char *cp, *end;
- char *numericsid = NULL;
- boolean_t isuser;
-
- domain[0] = '\0';
- *ridp = 0;
- /* Figure out the property type ({user|group}{quota|space}) */
- for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) {
- if (strncmp(propname, zfs_userquota_prop_prefixes[type],
- strlen(zfs_userquota_prop_prefixes[type])) == 0)
- break;
- }
- if (type == ZFS_NUM_USERQUOTA_PROPS)
- return (EINVAL);
- *typep = type;
-
- isuser = (type == ZFS_PROP_USERQUOTA ||
- type == ZFS_PROP_USERUSED);
-
- cp = strchr(propname, '@') + 1;
-
- if (strchr(cp, '@')) {
-#ifdef illumos
- /*
- * It's a SID name (eg "user@domain") that needs to be
- * turned into S-1-domainID-RID.
- */
- int flag = 0;
- idmap_stat stat, map_stat;
- uid_t pid;
- idmap_rid_t rid;
- idmap_get_handle_t *gh = NULL;
-
- stat = idmap_get_create(&gh);
- if (stat != IDMAP_SUCCESS) {
- idmap_get_destroy(gh);
- return (ENOMEM);
- }
- if (zoned && getzoneid() == GLOBAL_ZONEID)
- return (ENOENT);
- if (isuser) {
- stat = idmap_getuidbywinname(cp, NULL, flag, &pid);
- if (stat < 0)
- return (ENOENT);
- stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid,
- &rid, &map_stat);
- } else {
- stat = idmap_getgidbywinname(cp, NULL, flag, &pid);
- if (stat < 0)
- return (ENOENT);
- stat = idmap_get_sidbygid(gh, pid, flag, &numericsid,
- &rid, &map_stat);
- }
- if (stat < 0) {
- idmap_get_destroy(gh);
- return (ENOENT);
- }
- stat = idmap_get_mappings(gh);
- idmap_get_destroy(gh);
-
- if (stat < 0) {
- return (ENOENT);
- }
- if (numericsid == NULL)
- return (ENOENT);
- cp = numericsid;
- *ridp = rid;
- /* will be further decoded below */
-#else /* !illumos */
- return (ENOENT);
-#endif /* illumos */
- }
-
- if (strncmp(cp, "S-1-", 4) == 0) {
- /* It's a numeric SID (eg "S-1-234-567-89") */
- (void) strlcpy(domain, cp, domainlen);
- errno = 0;
- if (*ridp == 0) {
- cp = strrchr(domain, '-');
- *cp = '\0';
- cp++;
- *ridp = strtoull(cp, &end, 10);
- } else {
- end = "";
- }
- if (numericsid) {
- free(numericsid);
- numericsid = NULL;
- }
- if (errno != 0 || *end != '\0')
- return (EINVAL);
- } else if (!isdigit(*cp)) {
- /*
- * It's a user/group name (eg "user") that needs to be
- * turned into a uid/gid
- */
- if (zoned && getzoneid() == GLOBAL_ZONEID)
- return (ENOENT);
- if (isuser) {
- struct passwd *pw;
- pw = getpwnam(cp);
- if (pw == NULL)
- return (ENOENT);
- *ridp = pw->pw_uid;
- } else {
- struct group *gr;
- gr = getgrnam(cp);
- if (gr == NULL)
- return (ENOENT);
- *ridp = gr->gr_gid;
- }
- } else {
- /* It's a user/group ID (eg "12345"). */
- uid_t id = strtoul(cp, &end, 10);
- idmap_rid_t rid;
- char *mapdomain;
-
- if (*end != '\0')
- return (EINVAL);
- if (id > MAXUID) {
- /* It's an ephemeral ID. */
- if (idmap_id_to_numeric_domain_rid(id, isuser,
- &mapdomain, &rid) != 0)
- return (ENOENT);
- (void) strlcpy(domain, mapdomain, domainlen);
- *ridp = rid;
- } else {
- *ridp = id;
- }
- }
-
- ASSERT3P(numericsid, ==, NULL);
- return (0);
-}
-
-static int
-zfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname,
- uint64_t *propvalue, zfs_userquota_prop_t *typep)
-{
- int err;
- zfs_cmd_t zc = { 0 };
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- err = userquota_propname_decode(propname,
- zfs_prop_get_int(zhp, ZFS_PROP_ZONED),
- typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid);
- zc.zc_objset_type = *typep;
- if (err)
- return (err);
-
- err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc);
- if (err)
- return (err);
-
- *propvalue = zc.zc_cookie;
- return (0);
-}
-
-int
-zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname,
- uint64_t *propvalue)
-{
- zfs_userquota_prop_t type;
-
- return (zfs_prop_get_userquota_common(zhp, propname, propvalue,
- &type));
-}
-
-int
-zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname,
- char *propbuf, int proplen, boolean_t literal)
-{
- int err;
- uint64_t propvalue;
- zfs_userquota_prop_t type;
-
- err = zfs_prop_get_userquota_common(zhp, propname, &propvalue,
- &type);
-
- if (err)
- return (err);
-
- if (literal) {
- (void) snprintf(propbuf, proplen, "%llu", propvalue);
- } else if (propvalue == 0 &&
- (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) {
- (void) strlcpy(propbuf, "none", proplen);
- } else {
- zfs_nicenum(propvalue, propbuf, proplen);
- }
- return (0);
-}
-
-int
-zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname,
- uint64_t *propvalue)
-{
- int err;
- zfs_cmd_t zc = { 0 };
- const char *snapname;
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- snapname = strchr(propname, '@') + 1;
- if (strchr(snapname, '@')) {
- (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value));
- } else {
- /* snapname is the short name, append it to zhp's fsname */
- char *cp;
-
- (void) strlcpy(zc.zc_value, zhp->zfs_name,
- sizeof (zc.zc_value));
- cp = strchr(zc.zc_value, '@');
- if (cp != NULL)
- *cp = '\0';
- (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value));
- (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value));
- }
-
- err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc);
- if (err)
- return (err);
-
- *propvalue = zc.zc_cookie;
- return (0);
-}
-
-int
-zfs_prop_get_written(zfs_handle_t *zhp, const char *propname,
- char *propbuf, int proplen, boolean_t literal)
-{
- int err;
- uint64_t propvalue;
-
- err = zfs_prop_get_written_int(zhp, propname, &propvalue);
-
- if (err)
- return (err);
-
- if (literal) {
- (void) snprintf(propbuf, proplen, "%llu", propvalue);
- } else {
- zfs_nicenum(propvalue, propbuf, proplen);
- }
- return (0);
-}
-
-/*
- * Returns the name of the given zfs handle.
- */
-const char *
-zfs_get_name(const zfs_handle_t *zhp)
-{
- return (zhp->zfs_name);
-}
-
-/*
- * Returns the name of the parent pool for the given zfs handle.
- */
-const char *
-zfs_get_pool_name(const zfs_handle_t *zhp)
-{
- return (zhp->zpool_hdl->zpool_name);
-}
-
-/*
- * Returns the type of the given zfs handle.
- */
-zfs_type_t
-zfs_get_type(const zfs_handle_t *zhp)
-{
- return (zhp->zfs_type);
-}
-
-/*
- * Is one dataset name a child dataset of another?
- *
- * Needs to handle these cases:
- * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo"
- * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar"
- * Descendant? No. No. No. Yes.
- */
-static boolean_t
-is_descendant(const char *ds1, const char *ds2)
-{
- size_t d1len = strlen(ds1);
-
- /* ds2 can't be a descendant if it's smaller */
- if (strlen(ds2) < d1len)
- return (B_FALSE);
-
- /* otherwise, compare strings and verify that there's a '/' char */
- return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0));
-}
-
-/*
- * Given a complete name, return just the portion that refers to the parent.
- * Will return -1 if there is no parent (path is just the name of the
- * pool).
- */
-static int
-parent_name(const char *path, char *buf, size_t buflen)
-{
- char *slashp;
-
- (void) strlcpy(buf, path, buflen);
-
- if ((slashp = strrchr(buf, '/')) == NULL)
- return (-1);
- *slashp = '\0';
-
- return (0);
-}
-
-/*
- * If accept_ancestor is false, then check to make sure that the given path has
- * a parent, and that it exists. If accept_ancestor is true, then find the
- * closest existing ancestor for the given path. In prefixlen return the
- * length of already existing prefix of the given path. We also fetch the
- * 'zoned' property, which is used to validate property settings when creating
- * new datasets.
- */
-static int
-check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned,
- boolean_t accept_ancestor, int *prefixlen)
-{
- zfs_cmd_t zc = { 0 };
- char parent[ZFS_MAX_DATASET_NAME_LEN];
- char *slash;
- zfs_handle_t *zhp;
- char errbuf[1024];
- uint64_t is_zoned;
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot create '%s'"), path);
-
- /* get parent, and check to see if this is just a pool */
- if (parent_name(path, parent, sizeof (parent)) != 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "missing dataset name"));
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
- }
-
- /* check to see if the pool exists */
- if ((slash = strchr(parent, '/')) == NULL)
- slash = parent + strlen(parent);
- (void) strncpy(zc.zc_name, parent, slash - parent);
- zc.zc_name[slash - parent] = '\0';
- if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 &&
- errno == ENOENT) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "no such pool '%s'"), zc.zc_name);
- return (zfs_error(hdl, EZFS_NOENT, errbuf));
- }
-
- /* check to see if the parent dataset exists */
- while ((zhp = make_dataset_handle(hdl, parent)) == NULL) {
- if (errno == ENOENT && accept_ancestor) {
- /*
- * Go deeper to find an ancestor, give up on top level.
- */
- if (parent_name(parent, parent, sizeof (parent)) != 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "no such pool '%s'"), zc.zc_name);
- return (zfs_error(hdl, EZFS_NOENT, errbuf));
- }
- } else if (errno == ENOENT) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "parent does not exist"));
- return (zfs_error(hdl, EZFS_NOENT, errbuf));
- } else
- return (zfs_standard_error(hdl, errno, errbuf));
- }
-
- is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
- if (zoned != NULL)
- *zoned = is_zoned;
-
- /* we are in a non-global zone, but parent is in the global zone */
- if (getzoneid() != GLOBAL_ZONEID && !is_zoned) {
- (void) zfs_standard_error(hdl, EPERM, errbuf);
- zfs_close(zhp);
- return (-1);
- }
-
- /* make sure parent is a filesystem */
- if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "parent is not a filesystem"));
- (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
- zfs_close(zhp);
- return (-1);
- }
-
- zfs_close(zhp);
- if (prefixlen != NULL)
- *prefixlen = strlen(parent);
- return (0);
-}
-
-/*
- * Finds whether the dataset of the given type(s) exists.
- */
-boolean_t
-zfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types)
-{
- zfs_handle_t *zhp;
-
- if (!zfs_validate_name(hdl, path, types, B_FALSE))
- return (B_FALSE);
-
- /*
- * Try to get stats for the dataset, which will tell us if it exists.
- */
- if ((zhp = make_dataset_handle(hdl, path)) != NULL) {
- int ds_type = zhp->zfs_type;
-
- zfs_close(zhp);
- if (types & ds_type)
- return (B_TRUE);
- }
- return (B_FALSE);
-}
-
-/*
- * Given a path to 'target', create all the ancestors between
- * the prefixlen portion of the path, and the target itself.
- * Fail if the initial prefixlen-ancestor does not already exist.
- */
-int
-create_parents(libzfs_handle_t *hdl, char *target, int prefixlen)
-{
- zfs_handle_t *h;
- char *cp;
- const char *opname;
-
- /* make sure prefix exists */
- cp = target + prefixlen;
- if (*cp != '/') {
- assert(strchr(cp, '/') == NULL);
- h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM);
- } else {
- *cp = '\0';
- h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM);
- *cp = '/';
- }
- if (h == NULL)
- return (-1);
- zfs_close(h);
-
- /*
- * Attempt to create, mount, and share any ancestor filesystems,
- * up to the prefixlen-long one.
- */
- for (cp = target + prefixlen + 1;
- (cp = strchr(cp, '/')) != NULL; *cp = '/', cp++) {
-
- *cp = '\0';
-
- h = make_dataset_handle(hdl, target);
- if (h) {
- /* it already exists, nothing to do here */
- zfs_close(h);
- continue;
- }
-
- if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM,
- NULL) != 0) {
- opname = dgettext(TEXT_DOMAIN, "create");
- goto ancestorerr;
- }
-
- h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM);
- if (h == NULL) {
- opname = dgettext(TEXT_DOMAIN, "open");
- goto ancestorerr;
- }
-
- if (zfs_mount(h, NULL, 0) != 0) {
- opname = dgettext(TEXT_DOMAIN, "mount");
- goto ancestorerr;
- }
-
- if (zfs_share(h) != 0) {
- opname = dgettext(TEXT_DOMAIN, "share");
- goto ancestorerr;
- }
-
- zfs_close(h);
- }
-
- return (0);
-
-ancestorerr:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "failed to %s ancestor '%s'"), opname, target);
- return (-1);
-}
-
-/*
- * Creates non-existing ancestors of the given path.
- */
-int
-zfs_create_ancestors(libzfs_handle_t *hdl, const char *path)
-{
- int prefix;
- char *path_copy;
- char errbuf[1024];
- int rc = 0;
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot create '%s'"), path);
-
- /*
- * Check that we are not passing the nesting limit
- * before we start creating any ancestors.
- */
- if (dataset_nestcheck(path) != 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "maximum name nesting depth exceeded"));
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
- }
-
- if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0)
- return (-1);
-
- if ((path_copy = strdup(path)) != NULL) {
- rc = create_parents(hdl, path_copy, prefix);
- free(path_copy);
- }
- if (path_copy == NULL || rc != 0)
- return (-1);
-
- return (0);
-}
-
-/*
- * Create a new filesystem or volume.
- */
-int
-zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type,
- nvlist_t *props)
-{
- int ret;
- uint64_t size = 0;
- uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE);
- char errbuf[1024];
- uint64_t zoned;
- enum lzc_dataset_type ost;
- zpool_handle_t *zpool_handle;
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot create '%s'"), path);
-
- /* validate the path, taking care to note the extended error message */
- if (!zfs_validate_name(hdl, path, type, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- if (dataset_nestcheck(path) != 0) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "maximum name nesting depth exceeded"));
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
- }
-
- /* validate parents exist */
- if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0)
- return (-1);
-
- /*
- * The failure modes when creating a dataset of a different type over
- * one that already exists is a little strange. In particular, if you
- * try to create a dataset on top of an existing dataset, the ioctl()
- * will return ENOENT, not EEXIST. To prevent this from happening, we
- * first try to see if the dataset exists.
- */
- if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "dataset already exists"));
- return (zfs_error(hdl, EZFS_EXISTS, errbuf));
- }
-
- if (type == ZFS_TYPE_VOLUME)
- ost = LZC_DATSET_TYPE_ZVOL;
- else
- ost = LZC_DATSET_TYPE_ZFS;
-
- /* open zpool handle for prop validation */
- char pool_path[ZFS_MAX_DATASET_NAME_LEN];
- (void) strlcpy(pool_path, path, sizeof (pool_path));
-
- /* truncate pool_path at first slash */
- char *p = strchr(pool_path, '/');
- if (p != NULL)
- *p = '\0';
-
- if ((zpool_handle = zpool_open(hdl, pool_path)) == NULL)
- return (-1);
-
- if (props && (props = zfs_valid_proplist(hdl, type, props,
- zoned, NULL, zpool_handle, errbuf)) == 0) {
- zpool_close(zpool_handle);
- return (-1);
- }
- zpool_close(zpool_handle);
-
- if (type == ZFS_TYPE_VOLUME) {
- /*
- * If we are creating a volume, the size and block size must
- * satisfy a few restraints. First, the blocksize must be a
- * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the
- * volsize must be a multiple of the block size, and cannot be
- * zero.
- */
- if (props == NULL || nvlist_lookup_uint64(props,
- zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) {
- nvlist_free(props);
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "missing volume size"));
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
- }
-
- if ((ret = nvlist_lookup_uint64(props,
- zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
- &blocksize)) != 0) {
- if (ret == ENOENT) {
- blocksize = zfs_prop_default_numeric(
- ZFS_PROP_VOLBLOCKSIZE);
- } else {
- nvlist_free(props);
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "missing volume block size"));
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
- }
- }
-
- if (size == 0) {
- nvlist_free(props);
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "volume size cannot be zero"));
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
- }
-
- if (size % blocksize != 0) {
- nvlist_free(props);
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "volume size must be a multiple of volume block "
- "size"));
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
- }
- }
-
- /* create the dataset */
- ret = lzc_create(path, ost, props);
- nvlist_free(props);
-
- /* check for failure */
- if (ret != 0) {
- char parent[ZFS_MAX_DATASET_NAME_LEN];
- (void) parent_name(path, parent, sizeof (parent));
-
- switch (errno) {
- case ENOENT:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "no such parent '%s'"), parent);
- return (zfs_error(hdl, EZFS_NOENT, errbuf));
-
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded to set this "
- "property or value"));
- return (zfs_error(hdl, EZFS_BADVERSION, errbuf));
- case ERANGE:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid property value(s) specified"));
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
-#ifdef _ILP32
- case EOVERFLOW:
- /*
- * This platform can't address a volume this big.
- */
- if (type == ZFS_TYPE_VOLUME)
- return (zfs_error(hdl, EZFS_VOLTOOBIG,
- errbuf));
-#endif
- /* FALLTHROUGH */
- default:
- return (zfs_standard_error(hdl, errno, errbuf));
- }
- }
-
- return (0);
-}
-
-/*
- * Destroys the given dataset. The caller must make sure that the filesystem
- * isn't mounted, and that there are no active dependents. If the file system
- * does not exist this function does nothing.
- */
-int
-zfs_destroy(zfs_handle_t *zhp, boolean_t defer)
-{
- int error;
-
- if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT && defer)
- return (EINVAL);
-
- if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) {
- nvlist_t *nv = fnvlist_alloc();
- fnvlist_add_boolean(nv, zhp->zfs_name);
- error = lzc_destroy_bookmarks(nv, NULL);
- fnvlist_free(nv);
- if (error != 0) {
- return (zfs_standard_error_fmt(zhp->zfs_hdl, error,
- dgettext(TEXT_DOMAIN, "cannot destroy '%s'"),
- zhp->zfs_name));
- }
- return (0);
- }
-
- if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) {
- nvlist_t *nv = fnvlist_alloc();
- fnvlist_add_boolean(nv, zhp->zfs_name);
- error = lzc_destroy_snaps(nv, defer, NULL);
- fnvlist_free(nv);
- } else {
- error = lzc_destroy(zhp->zfs_name);
- }
-
- if (error != 0 && error != ENOENT) {
- return (zfs_standard_error_fmt(zhp->zfs_hdl, errno,
- dgettext(TEXT_DOMAIN, "cannot destroy '%s'"),
- zhp->zfs_name));
- }
-
- remove_mountpoint(zhp);
-
- return (0);
-}
-
-struct destroydata {
- nvlist_t *nvl;
- const char *snapname;
-};
-
-static int
-zfs_check_snap_cb(zfs_handle_t *zhp, void *arg)
-{
- struct destroydata *dd = arg;
- char name[ZFS_MAX_DATASET_NAME_LEN];
- int rv = 0;
-
- (void) snprintf(name, sizeof (name),
- "%s@%s", zhp->zfs_name, dd->snapname);
-
- if (lzc_exists(name))
- verify(nvlist_add_boolean(dd->nvl, name) == 0);
-
- rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd);
- zfs_close(zhp);
- return (rv);
-}
-
-/*
- * Destroys all snapshots with the given name in zhp & descendants.
- */
-int
-zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer)
-{
- int ret;
- struct destroydata dd = { 0 };
-
- dd.snapname = snapname;
- verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0);
- (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd);
-
- if (nvlist_empty(dd.nvl)) {
- ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT,
- dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"),
- zhp->zfs_name, snapname);
- } else {
- ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer);
- }
- nvlist_free(dd.nvl);
- return (ret);
-}
-
-/*
- * Destroys all the snapshots named in the nvlist.
- */
-int
-zfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer)
-{
- int ret;
- nvlist_t *errlist = NULL;
-
- ret = lzc_destroy_snaps(snaps, defer, &errlist);
-
- if (ret == 0) {
- nvlist_free(errlist);
- return (0);
- }
-
- if (nvlist_empty(errlist)) {
- char errbuf[1024];
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot destroy snapshots"));
-
- ret = zfs_standard_error(hdl, ret, errbuf);
- }
- for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL);
- pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) {
- char errbuf[1024];
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"),
- nvpair_name(pair));
-
- switch (fnvpair_value_int32(pair)) {
- case EEXIST:
- zfs_error_aux(hdl,
- dgettext(TEXT_DOMAIN, "snapshot is cloned"));
- ret = zfs_error(hdl, EZFS_EXISTS, errbuf);
- break;
- default:
- ret = zfs_standard_error(hdl, errno, errbuf);
- break;
- }
- }
-
- nvlist_free(errlist);
- return (ret);
-}
-
-/*
- * Clones the given dataset. The target must be of the same type as the source.
- */
-int
-zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props)
-{
- char parent[ZFS_MAX_DATASET_NAME_LEN];
- int ret;
- char errbuf[1024];
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- uint64_t zoned;
-
- assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot create '%s'"), target);
-
- /* validate the target/clone name */
- if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- /* validate parents exist */
- if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0)
- return (-1);
-
- (void) parent_name(target, parent, sizeof (parent));
-
- /* do the clone */
-
- if (props) {
- zfs_type_t type;
-
- if (ZFS_IS_VOLUME(zhp)) {
- type = ZFS_TYPE_VOLUME;
- } else {
- type = ZFS_TYPE_FILESYSTEM;
- }
- if ((props = zfs_valid_proplist(hdl, type, props, zoned,
- zhp, zhp->zpool_hdl, errbuf)) == NULL)
- return (-1);
- if (zfs_fix_auto_resv(zhp, props) == -1) {
- nvlist_free(props);
- return (-1);
- }
- }
-
- ret = lzc_clone(target, zhp->zfs_name, props);
- nvlist_free(props);
-
- if (ret != 0) {
- switch (errno) {
-
- case ENOENT:
- /*
- * The parent doesn't exist. We should have caught this
- * above, but there may a race condition that has since
- * destroyed the parent.
- *
- * At this point, we don't know whether it's the source
- * that doesn't exist anymore, or whether the target
- * dataset doesn't exist.
- */
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "no such parent '%s'"), parent);
- return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf));
-
- case EXDEV:
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "source and target pools differ"));
- return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET,
- errbuf));
-
- default:
- return (zfs_standard_error(zhp->zfs_hdl, errno,
- errbuf));
- }
- }
-
- return (ret);
-}
-
-/*
- * Promotes the given clone fs to be the clone parent.
- */
-int
-zfs_promote(zfs_handle_t *zhp)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- char snapname[ZFS_MAX_DATASET_NAME_LEN];
- int ret;
- char errbuf[1024];
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot promote '%s'"), zhp->zfs_name);
-
- if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "snapshots can not be promoted"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- }
-
- if (zhp->zfs_dmustats.dds_origin[0] == '\0') {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "not a cloned filesystem"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- }
-
- if (!zfs_validate_name(hdl, zhp->zfs_name, zhp->zfs_type, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- ret = lzc_promote(zhp->zfs_name, snapname, sizeof (snapname));
-
- if (ret != 0) {
- switch (ret) {
- case EEXIST:
- /* There is a conflicting snapshot name. */
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "conflicting snapshot '%s' from parent '%s'"),
- snapname, zhp->zfs_dmustats.dds_origin);
- return (zfs_error(hdl, EZFS_EXISTS, errbuf));
-
- default:
- return (zfs_standard_error(hdl, ret, errbuf));
- }
- }
- return (ret);
-}
-
-typedef struct snapdata {
- nvlist_t *sd_nvl;
- const char *sd_snapname;
-} snapdata_t;
-
-static int
-zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
-{
- snapdata_t *sd = arg;
- char name[ZFS_MAX_DATASET_NAME_LEN];
- int rv = 0;
-
- if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) {
- (void) snprintf(name, sizeof (name),
- "%s@%s", zfs_get_name(zhp), sd->sd_snapname);
-
- fnvlist_add_boolean(sd->sd_nvl, name);
-
- rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
- }
- zfs_close(zhp);
-
- return (rv);
-}
-
-int
-zfs_remap_indirects(libzfs_handle_t *hdl, const char *fs)
-{
- int err;
- char errbuf[1024];
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot remap dataset '%s'"), fs);
-
- err = lzc_remap(fs);
-
- if (err != 0) {
- switch (err) {
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- (void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
- case EINVAL:
- (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- default:
- (void) zfs_standard_error(hdl, err, errbuf);
- break;
- }
- }
-
- return (err);
-}
-
-/*
- * Creates snapshots. The keys in the snaps nvlist are the snapshots to be
- * created.
- */
-int
-zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props)
-{
- int ret;
- char errbuf[1024];
- nvpair_t *elem;
- nvlist_t *errors;
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot create snapshots "));
-
- elem = NULL;
- while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) {
- const char *snapname = nvpair_name(elem);
-
- /* validate the target name */
- if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT,
- B_TRUE)) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot create snapshot '%s'"), snapname);
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
- }
- }
-
- /*
- * get pool handle for prop validation. assumes all snaps are in the
- * same pool, as does lzc_snapshot (below).
- */
- char pool[ZFS_MAX_DATASET_NAME_LEN];
- elem = nvlist_next_nvpair(snaps, NULL);
- (void) strlcpy(pool, nvpair_name(elem), sizeof (pool));
- pool[strcspn(pool, "/@")] = '\0';
- zpool_handle_t *zpool_hdl = zpool_open(hdl, pool);
-
- if (props != NULL &&
- (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT,
- props, B_FALSE, NULL, zpool_hdl, errbuf)) == NULL) {
- zpool_close(zpool_hdl);
- return (-1);
- }
- zpool_close(zpool_hdl);
-
- ret = lzc_snapshot(snaps, props, &errors);
-
- if (ret != 0) {
- boolean_t printed = B_FALSE;
- for (elem = nvlist_next_nvpair(errors, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(errors, elem)) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot create snapshot '%s'"), nvpair_name(elem));
- (void) zfs_standard_error(hdl,
- fnvpair_value_int32(elem), errbuf);
- printed = B_TRUE;
- }
- if (!printed) {
- switch (ret) {
- case EXDEV:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "multiple snapshots of same "
- "fs not allowed"));
- (void) zfs_error(hdl, EZFS_EXISTS, errbuf);
-
- break;
- default:
- (void) zfs_standard_error(hdl, ret, errbuf);
- }
- }
- }
-
- nvlist_free(props);
- nvlist_free(errors);
- return (ret);
-}
-
-int
-zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive,
- nvlist_t *props)
-{
- int ret;
- snapdata_t sd = { 0 };
- char fsname[ZFS_MAX_DATASET_NAME_LEN];
- char *cp;
- zfs_handle_t *zhp;
- char errbuf[1024];
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot snapshot %s"), path);
-
- if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- (void) strlcpy(fsname, path, sizeof (fsname));
- cp = strchr(fsname, '@');
- *cp = '\0';
- sd.sd_snapname = cp + 1;
-
- if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM |
- ZFS_TYPE_VOLUME)) == NULL) {
- return (-1);
- }
-
- verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0);
- if (recursive) {
- (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd);
- } else {
- fnvlist_add_boolean(sd.sd_nvl, path);
- }
-
- ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props);
- nvlist_free(sd.sd_nvl);
- zfs_close(zhp);
- return (ret);
-}
-
-/*
- * Destroy any more recent snapshots. We invoke this callback on any dependents
- * of the snapshot first. If the 'cb_dependent' member is non-zero, then this
- * is a dependent and we should just destroy it without checking the transaction
- * group.
- */
-typedef struct rollback_data {
- const char *cb_target; /* the snapshot */
- uint64_t cb_create; /* creation time reference */
- boolean_t cb_error;
- boolean_t cb_force;
-} rollback_data_t;
-
-static int
-rollback_destroy_dependent(zfs_handle_t *zhp, void *data)
-{
- rollback_data_t *cbp = data;
- prop_changelist_t *clp;
-
- /* We must destroy this clone; first unmount it */
- clp = changelist_gather(zhp, ZFS_PROP_NAME, 0,
- cbp->cb_force ? MS_FORCE: 0);
- if (clp == NULL || changelist_prefix(clp) != 0) {
- cbp->cb_error = B_TRUE;
- zfs_close(zhp);
- return (0);
- }
- if (zfs_destroy(zhp, B_FALSE) != 0)
- cbp->cb_error = B_TRUE;
- else
- changelist_remove(clp, zhp->zfs_name);
- (void) changelist_postfix(clp);
- changelist_free(clp);
-
- zfs_close(zhp);
- return (0);
-}
-
-static int
-rollback_destroy(zfs_handle_t *zhp, void *data)
-{
- rollback_data_t *cbp = data;
-
- if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) {
- cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE,
- rollback_destroy_dependent, cbp);
-
- cbp->cb_error |= zfs_destroy(zhp, B_FALSE);
- }
-
- zfs_close(zhp);
- return (0);
-}
-
-/*
- * Given a dataset, rollback to a specific snapshot, discarding any
- * data changes since then and making it the active dataset.
- *
- * Any snapshots and bookmarks more recent than the target are
- * destroyed, along with their dependents (i.e. clones).
- */
-int
-zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force)
-{
- rollback_data_t cb = { 0 };
- int err;
- boolean_t restore_resv = 0;
- uint64_t min_txg = 0, old_volsize = 0, new_volsize;
- zfs_prop_t resv_prop;
-
- assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM ||
- zhp->zfs_type == ZFS_TYPE_VOLUME);
-
- /*
- * Destroy all recent snapshots and their dependents.
- */
- cb.cb_force = force;
- cb.cb_target = snap->zfs_name;
- cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG);
-
- if (cb.cb_create > 0)
- min_txg = cb.cb_create;
-
- (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb,
- min_txg, 0);
-
- (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb);
-
- if (cb.cb_error)
- return (-1);
-
- /*
- * Now that we have verified that the snapshot is the latest,
- * rollback to the given snapshot.
- */
-
- if (zhp->zfs_type == ZFS_TYPE_VOLUME) {
- if (zfs_which_resv_prop(zhp, &resv_prop) < 0)
- return (-1);
- old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
- restore_resv =
- (old_volsize == zfs_prop_get_int(zhp, resv_prop));
- }
-
- /*
- * Pass both the filesystem and the wanted snapshot names,
- * we would get an error back if the snapshot is destroyed or
- * a new snapshot is created before this request is processed.
- */
- err = lzc_rollback_to(zhp->zfs_name, snap->zfs_name);
- if (err != 0) {
- char errbuf[1024];
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot rollback '%s'"),
- zhp->zfs_name);
- switch (err) {
- case EEXIST:
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "there is a snapshot or bookmark more recent "
- "than '%s'"), snap->zfs_name);
- (void) zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf);
- break;
- case ESRCH:
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "'%s' is not found among snapshots of '%s'"),
- snap->zfs_name, zhp->zfs_name);
- (void) zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf);
- break;
- case EINVAL:
- (void) zfs_error(zhp->zfs_hdl, EZFS_BADTYPE, errbuf);
- break;
- default:
- (void) zfs_standard_error(zhp->zfs_hdl, err, errbuf);
- }
- return (err);
- }
-
- /*
- * For volumes, if the pre-rollback volsize matched the pre-
- * rollback reservation and the volsize has changed then set
- * the reservation property to the post-rollback volsize.
- * Make a new handle since the rollback closed the dataset.
- */
- if ((zhp->zfs_type == ZFS_TYPE_VOLUME) &&
- (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) {
- if (restore_resv) {
- new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
- if (old_volsize != new_volsize)
- err = zfs_prop_set_int(zhp, resv_prop,
- new_volsize);
- }
- zfs_close(zhp);
- }
- return (err);
-}
-
-/*
- * Renames the given dataset.
- */
-int
-zfs_rename(zfs_handle_t *zhp, const char *source, const char *target,
- renameflags_t flags)
-{
- int ret = 0;
- zfs_cmd_t zc = { 0 };
- char *delim;
- prop_changelist_t *cl = NULL;
- zfs_handle_t *zhrp = NULL;
- char *parentname = NULL;
- char parent[ZFS_MAX_DATASET_NAME_LEN];
- char property[ZFS_MAXPROPLEN];
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- char errbuf[1024];
-
- /* if we have the same exact name, just return success */
- if (strcmp(zhp->zfs_name, target) == 0)
- return (0);
-
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot rename to '%s'"), target);
-
- if (source != NULL) {
- /*
- * This is recursive snapshots rename, put snapshot name
- * (that might not exist) into zfs_name.
- */
- assert(flags.recurse);
-
- (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name));
- (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name));
- zhp->zfs_type = ZFS_TYPE_SNAPSHOT;
- }
-
- /* make sure source name is valid */
- if (!zfs_validate_name(hdl, zhp->zfs_name, zhp->zfs_type, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- /*
- * Make sure the target name is valid
- */
- if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT ||
- zhp->zfs_type == ZFS_TYPE_BOOKMARK) {
- const char sep = zhp->zfs_type == ZFS_TYPE_SNAPSHOT ? '@' : '#';
-
- if ((strchr(target, sep) == NULL) || *target == sep) {
- /*
- * Snapshot target name is abbreviated,
- * reconstruct full dataset name
- */
- (void) strlcpy(parent, zhp->zfs_name, sizeof (parent));
- delim = strchr(parent, sep);
- if (strchr(target, sep) == NULL)
- *(++delim) = '\0';
- else
- *delim = '\0';
- (void) strlcat(parent, target, sizeof (parent));
- target = parent;
- } else {
- /*
- * Make sure we're renaming within the same dataset.
- */
- delim = strchr(target, sep);
- if (strncmp(zhp->zfs_name, target, delim - target)
- != 0 || zhp->zfs_name[delim - target] != sep) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "%s must be part of same dataset"),
- zhp->zfs_type == ZFS_TYPE_SNAPSHOT ?
- "snapshots" : "bookmarks");
- return (zfs_error(hdl, EZFS_CROSSTARGET,
- errbuf));
- }
- }
-
- if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
- } else {
- if (flags.recurse) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "recursive rename must be a snapshot"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- }
-
- if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- /* validate parents */
- if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0)
- return (-1);
-
- /* make sure we're in the same pool */
- verify((delim = strchr(target, '/')) != NULL);
- if (strncmp(zhp->zfs_name, target, delim - target) != 0 ||
- zhp->zfs_name[delim - target] != '/') {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "datasets must be within same pool"));
- return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));
- }
-
- /* new name cannot be a child of the current dataset name */
- if (is_descendant(zhp->zfs_name, target)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "New dataset name cannot be a descendant of "
- "current dataset name"));
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
- }
- }
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name);
-
- if (getzoneid() == GLOBAL_ZONEID &&
- zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "dataset is used in a non-global zone"));
- return (zfs_error(hdl, EZFS_ZONED, errbuf));
- }
-
- /*
- * Avoid unmounting file systems with mountpoint property set to
- * 'legacy' or 'none' even if -u option is not given.
- */
- if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM &&
- !flags.recurse && !flags.nounmount &&
- zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property,
- sizeof (property), NULL, NULL, 0, B_FALSE) == 0 &&
- (strcmp(property, "legacy") == 0 ||
- strcmp(property, "none") == 0)) {
- flags.nounmount = B_TRUE;
- }
- if (flags.recurse) {
- parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name);
- if (parentname == NULL) {
- ret = -1;
- goto error;
- }
- delim = strchr(parentname, '@');
- *delim = '\0';
- zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET);
- if (zhrp == NULL) {
- ret = -1;
- goto error;
- }
- } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT &&
- zhp->zfs_type != ZFS_TYPE_BOOKMARK) {
- if ((cl = changelist_gather(zhp, ZFS_PROP_NAME,
- flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0,
- flags.forceunmount ? MS_FORCE : 0)) == NULL) {
- return (-1);
- }
-
- if (changelist_haszonedchild(cl)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "child dataset with inherited mountpoint is used "
- "in a non-global zone"));
- (void) zfs_error(hdl, EZFS_ZONED, errbuf);
- ret = -1;
- goto error;
- }
-
- if ((ret = changelist_prefix(cl)) != 0)
- goto error;
- }
-
- if (ZFS_IS_VOLUME(zhp))
- zc.zc_objset_type = DMU_OST_ZVOL;
- else
- zc.zc_objset_type = DMU_OST_ZFS;
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value));
-
- zc.zc_cookie = flags.recurse ? 1 : 0;
- if (flags.nounmount)
- zc.zc_cookie |= 2;
-
- if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) {
- /*
- * if it was recursive, the one that actually failed will
- * be in zc.zc_name
- */
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot rename '%s'"), zc.zc_name);
-
- if (flags.recurse && errno == EEXIST) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "a child dataset already has a snapshot "
- "with the new name"));
- (void) zfs_error(hdl, EZFS_EXISTS, errbuf);
- } else if (errno == EINVAL) {
- (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
- } else {
- (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf);
- }
-
- /*
- * On failure, we still want to remount any filesystems that
- * were previously mounted, so we don't alter the system state.
- */
- if (cl != NULL)
- (void) changelist_postfix(cl);
- } else {
- if (cl != NULL) {
- changelist_rename(cl, zfs_get_name(zhp), target);
- ret = changelist_postfix(cl);
- }
- }
-
-error:
- if (parentname != NULL) {
- free(parentname);
- }
- if (zhrp != NULL) {
- zfs_close(zhrp);
- }
- if (cl != NULL) {
- changelist_free(cl);
- }
- return (ret);
-}
-
-nvlist_t *
-zfs_get_user_props(zfs_handle_t *zhp)
-{
- return (zhp->zfs_user_props);
-}
-
-nvlist_t *
-zfs_get_recvd_props(zfs_handle_t *zhp)
-{
- if (zhp->zfs_recvd_props == NULL)
- if (get_recvd_props_ioctl(zhp) != 0)
- return (NULL);
- return (zhp->zfs_recvd_props);
-}
-
-/*
- * This function is used by 'zfs list' to determine the exact set of columns to
- * display, and their maximum widths. This does two main things:
- *
- * - If this is a list of all properties, then expand the list to include
- * all native properties, and set a flag so that for each dataset we look
- * for new unique user properties and add them to the list.
- *
- * - For non fixed-width properties, keep track of the maximum width seen
- * so that we can size the column appropriately. If the user has
- * requested received property values, we also need to compute the width
- * of the RECEIVED column.
- */
-int
-zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received,
- boolean_t literal)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- zprop_list_t *entry;
- zprop_list_t **last, **start;
- nvlist_t *userprops, *propval;
- nvpair_t *elem;
- char *strval;
- char buf[ZFS_MAXPROPLEN];
-
- if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0)
- return (-1);
-
- userprops = zfs_get_user_props(zhp);
-
- entry = *plp;
- if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) {
- /*
- * Go through and add any user properties as necessary. We
- * start by incrementing our list pointer to the first
- * non-native property.
- */
- start = plp;
- while (*start != NULL) {
- if ((*start)->pl_prop == ZPROP_INVAL)
- break;
- start = &(*start)->pl_next;
- }
-
- elem = NULL;
- while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) {
- /*
- * See if we've already found this property in our list.
- */
- for (last = start; *last != NULL;
- last = &(*last)->pl_next) {
- if (strcmp((*last)->pl_user_prop,
- nvpair_name(elem)) == 0)
- break;
- }
-
- if (*last == NULL) {
- if ((entry = zfs_alloc(hdl,
- sizeof (zprop_list_t))) == NULL ||
- ((entry->pl_user_prop = zfs_strdup(hdl,
- nvpair_name(elem)))) == NULL) {
- free(entry);
- return (-1);
- }
-
- entry->pl_prop = ZPROP_INVAL;
- entry->pl_width = strlen(nvpair_name(elem));
- entry->pl_all = B_TRUE;
- *last = entry;
- }
- }
- }
-
- /*
- * Now go through and check the width of any non-fixed columns
- */
- for (entry = *plp; entry != NULL; entry = entry->pl_next) {
- if (entry->pl_fixed && !literal)
- continue;
-
- if (entry->pl_prop != ZPROP_INVAL) {
- if (zfs_prop_get(zhp, entry->pl_prop,
- buf, sizeof (buf), NULL, NULL, 0, literal) == 0) {
- if (strlen(buf) > entry->pl_width)
- entry->pl_width = strlen(buf);
- }
- if (received && zfs_prop_get_recvd(zhp,
- zfs_prop_to_name(entry->pl_prop),
- buf, sizeof (buf), literal) == 0)
- if (strlen(buf) > entry->pl_recvd_width)
- entry->pl_recvd_width = strlen(buf);
- } else {
- if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop,
- &propval) == 0) {
- verify(nvlist_lookup_string(propval,
- ZPROP_VALUE, &strval) == 0);
- if (strlen(strval) > entry->pl_width)
- entry->pl_width = strlen(strval);
- }
- if (received && zfs_prop_get_recvd(zhp,
- entry->pl_user_prop,
- buf, sizeof (buf), literal) == 0)
- if (strlen(buf) > entry->pl_recvd_width)
- entry->pl_recvd_width = strlen(buf);
- }
- }
-
- return (0);
-}
-
-int
-zfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path,
- char *resource, void *export, void *sharetab,
- int sharemax, zfs_share_op_t operation)
-{
- zfs_cmd_t zc = { 0 };
- int error;
-
- (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value));
- if (resource)
- (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string));
- zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab;
- zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export;
- zc.zc_share.z_sharetype = operation;
- zc.zc_share.z_sharemax = sharemax;
- error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc);
- return (error);
-}
-
-void
-zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props)
-{
- nvpair_t *curr;
-
- /*
- * Keep a reference to the props-table against which we prune the
- * properties.
- */
- zhp->zfs_props_table = props;
-
- curr = nvlist_next_nvpair(zhp->zfs_props, NULL);
-
- while (curr) {
- zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr));
- nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr);
-
- /*
- * User properties will result in ZPROP_INVAL, and since we
- * only know how to prune standard ZFS properties, we always
- * leave these in the list. This can also happen if we
- * encounter an unknown DSL property (when running older
- * software, for example).
- */
- if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE)
- (void) nvlist_remove(zhp->zfs_props,
- nvpair_name(curr), nvpair_type(curr));
- curr = next;
- }
-}
-
-#ifdef illumos
-static int
-zfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path,
- zfs_smb_acl_op_t cmd, char *resource1, char *resource2)
-{
- zfs_cmd_t zc = { 0 };
- nvlist_t *nvlist = NULL;
- int error;
-
- (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value));
- zc.zc_cookie = (uint64_t)cmd;
-
- if (cmd == ZFS_SMB_ACL_RENAME) {
- if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) {
- (void) no_memory(hdl);
- return (0);
- }
- }
-
- switch (cmd) {
- case ZFS_SMB_ACL_ADD:
- case ZFS_SMB_ACL_REMOVE:
- (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string));
- break;
- case ZFS_SMB_ACL_RENAME:
- if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC,
- resource1) != 0) {
- (void) no_memory(hdl);
- return (-1);
- }
- if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET,
- resource2) != 0) {
- (void) no_memory(hdl);
- return (-1);
- }
- if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) {
- nvlist_free(nvlist);
- return (-1);
- }
- break;
- case ZFS_SMB_ACL_PURGE:
- break;
- default:
- return (-1);
- }
- error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc);
- nvlist_free(nvlist);
- return (error);
-}
-
-int
-zfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset,
- char *path, char *resource)
-{
- return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD,
- resource, NULL));
-}
-
-int
-zfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset,
- char *path, char *resource)
-{
- return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE,
- resource, NULL));
-}
-
-int
-zfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path)
-{
- return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE,
- NULL, NULL));
-}
-
-int
-zfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path,
- char *oldname, char *newname)
-{
- return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME,
- oldname, newname));
-}
-#endif /* illumos */
-
-int
-zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
- zfs_userspace_cb_t func, void *arg)
-{
- zfs_cmd_t zc = { 0 };
- zfs_useracct_t buf[100];
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- int ret;
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- zc.zc_objset_type = type;
- zc.zc_nvlist_dst = (uintptr_t)buf;
-
- for (;;) {
- zfs_useracct_t *zua = buf;
-
- zc.zc_nvlist_dst_size = sizeof (buf);
- if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) {
- char errbuf[1024];
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot get used/quota for %s"), zc.zc_name);
- return (zfs_standard_error_fmt(hdl, errno, errbuf));
- }
- if (zc.zc_nvlist_dst_size == 0)
- break;
-
- while (zc.zc_nvlist_dst_size > 0) {
- if ((ret = func(arg, zua->zu_domain, zua->zu_rid,
- zua->zu_space)) != 0)
- return (ret);
- zua++;
- zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t);
- }
- }
-
- return (0);
-}
-
-struct holdarg {
- nvlist_t *nvl;
- const char *snapname;
- const char *tag;
- boolean_t recursive;
- int error;
-};
-
-static int
-zfs_hold_one(zfs_handle_t *zhp, void *arg)
-{
- struct holdarg *ha = arg;
- char name[ZFS_MAX_DATASET_NAME_LEN];
- int rv = 0;
-
- (void) snprintf(name, sizeof (name),
- "%s@%s", zhp->zfs_name, ha->snapname);
-
- if (lzc_exists(name))
- fnvlist_add_string(ha->nvl, name, ha->tag);
-
- if (ha->recursive)
- rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha);
- zfs_close(zhp);
- return (rv);
-}
-
-int
-zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag,
- boolean_t recursive, int cleanup_fd)
-{
- int ret;
- struct holdarg ha;
-
- ha.nvl = fnvlist_alloc();
- ha.snapname = snapname;
- ha.tag = tag;
- ha.recursive = recursive;
- (void) zfs_hold_one(zfs_handle_dup(zhp), &ha);
-
- if (nvlist_empty(ha.nvl)) {
- char errbuf[1024];
-
- fnvlist_free(ha.nvl);
- ret = ENOENT;
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot hold snapshot '%s@%s'"),
- zhp->zfs_name, snapname);
- (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf);
- return (ret);
- }
-
- ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl);
- fnvlist_free(ha.nvl);
-
- return (ret);
-}
-
-int
-zfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds)
-{
- int ret;
- nvlist_t *errors;
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- char errbuf[1024];
- nvpair_t *elem;
-
- errors = NULL;
- ret = lzc_hold(holds, cleanup_fd, &errors);
-
- if (ret == 0) {
- /* There may be errors even in the success case. */
- fnvlist_free(errors);
- return (0);
- }
-
- if (nvlist_empty(errors)) {
- /* no hold-specific errors */
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot hold"));
- switch (ret) {
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- (void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
- case EINVAL:
- (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- default:
- (void) zfs_standard_error(hdl, ret, errbuf);
- }
- }
-
- for (elem = nvlist_next_nvpair(errors, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(errors, elem)) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot hold snapshot '%s'"), nvpair_name(elem));
- switch (fnvpair_value_int32(elem)) {
- case E2BIG:
- /*
- * Temporary tags wind up having the ds object id
- * prepended. So even if we passed the length check
- * above, it's still possible for the tag to wind
- * up being slightly too long.
- */
- (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf);
- break;
- case EINVAL:
- (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- case EEXIST:
- (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf);
- break;
- default:
- (void) zfs_standard_error(hdl,
- fnvpair_value_int32(elem), errbuf);
- }
- }
-
- fnvlist_free(errors);
- return (ret);
-}
-
-static int
-zfs_release_one(zfs_handle_t *zhp, void *arg)
-{
- struct holdarg *ha = arg;
- char name[ZFS_MAX_DATASET_NAME_LEN];
- int rv = 0;
- nvlist_t *existing_holds;
-
- (void) snprintf(name, sizeof (name),
- "%s@%s", zhp->zfs_name, ha->snapname);
-
- if (lzc_get_holds(name, &existing_holds) != 0) {
- ha->error = ENOENT;
- } else if (!nvlist_exists(existing_holds, ha->tag)) {
- ha->error = ESRCH;
- } else {
- nvlist_t *torelease = fnvlist_alloc();
- fnvlist_add_boolean(torelease, ha->tag);
- fnvlist_add_nvlist(ha->nvl, name, torelease);
- fnvlist_free(torelease);
- }
-
- if (ha->recursive)
- rv = zfs_iter_filesystems(zhp, zfs_release_one, ha);
- zfs_close(zhp);
- return (rv);
-}
-
-int
-zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag,
- boolean_t recursive)
-{
- int ret;
- struct holdarg ha;
- nvlist_t *errors = NULL;
- nvpair_t *elem;
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- char errbuf[1024];
-
- ha.nvl = fnvlist_alloc();
- ha.snapname = snapname;
- ha.tag = tag;
- ha.recursive = recursive;
- ha.error = 0;
- (void) zfs_release_one(zfs_handle_dup(zhp), &ha);
-
- if (nvlist_empty(ha.nvl)) {
- fnvlist_free(ha.nvl);
- ret = ha.error;
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot release hold from snapshot '%s@%s'"),
- zhp->zfs_name, snapname);
- if (ret == ESRCH) {
- (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf);
- } else {
- (void) zfs_standard_error(hdl, ret, errbuf);
- }
- return (ret);
- }
-
- ret = lzc_release(ha.nvl, &errors);
- fnvlist_free(ha.nvl);
-
- if (ret == 0) {
- /* There may be errors even in the success case. */
- fnvlist_free(errors);
- return (0);
- }
-
- if (nvlist_empty(errors)) {
- /* no hold-specific errors */
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot release"));
- switch (errno) {
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- (void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
- default:
- (void) zfs_standard_error_fmt(hdl, errno, errbuf);
- }
- }
-
- for (elem = nvlist_next_nvpair(errors, NULL);
- elem != NULL;
- elem = nvlist_next_nvpair(errors, elem)) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN,
- "cannot release hold from snapshot '%s'"),
- nvpair_name(elem));
- switch (fnvpair_value_int32(elem)) {
- case ESRCH:
- (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf);
- break;
- case EINVAL:
- (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- default:
- (void) zfs_standard_error_fmt(hdl,
- fnvpair_value_int32(elem), errbuf);
- }
- }
-
- fnvlist_free(errors);
- return (ret);
-}
-
-int
-zfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl)
-{
- zfs_cmd_t zc = { 0 };
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- int nvsz = 2048;
- void *nvbuf;
- int err = 0;
- char errbuf[1024];
-
- assert(zhp->zfs_type == ZFS_TYPE_VOLUME ||
- zhp->zfs_type == ZFS_TYPE_FILESYSTEM);
-
-tryagain:
-
- nvbuf = malloc(nvsz);
- if (nvbuf == NULL) {
- err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno)));
- goto out;
- }
-
- zc.zc_nvlist_dst_size = nvsz;
- zc.zc_nvlist_dst = (uintptr_t)nvbuf;
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"),
- zc.zc_name);
- switch (errno) {
- case ENOMEM:
- free(nvbuf);
- nvsz = zc.zc_nvlist_dst_size;
- goto tryagain;
-
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- err = zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
- case EINVAL:
- err = zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- case ENOENT:
- err = zfs_error(hdl, EZFS_NOENT, errbuf);
- break;
- default:
- err = zfs_standard_error_fmt(hdl, errno, errbuf);
- break;
- }
- } else {
- /* success */
- int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0);
- if (rc) {
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(
- TEXT_DOMAIN, "cannot get permissions on '%s'"),
- zc.zc_name);
- err = zfs_standard_error_fmt(hdl, rc, errbuf);
- }
- }
-
- free(nvbuf);
-out:
- return (err);
-}
-
-int
-zfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl)
-{
- zfs_cmd_t zc = { 0 };
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- char *nvbuf;
- char errbuf[1024];
- size_t nvsz;
- int err;
-
- assert(zhp->zfs_type == ZFS_TYPE_VOLUME ||
- zhp->zfs_type == ZFS_TYPE_FILESYSTEM);
-
- err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE);
- assert(err == 0);
-
- nvbuf = malloc(nvsz);
-
- err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0);
- assert(err == 0);
-
- zc.zc_nvlist_src_size = nvsz;
- zc.zc_nvlist_src = (uintptr_t)nvbuf;
- zc.zc_perm_action = un;
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"),
- zc.zc_name);
- switch (errno) {
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- err = zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
- case EINVAL:
- err = zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- case ENOENT:
- err = zfs_error(hdl, EZFS_NOENT, errbuf);
- break;
- default:
- err = zfs_standard_error_fmt(hdl, errno, errbuf);
- break;
- }
- }
-
- free(nvbuf);
-
- return (err);
-}
-
-int
-zfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl)
-{
- int err;
- char errbuf[1024];
-
- err = lzc_get_holds(zhp->zfs_name, nvl);
-
- if (err != 0) {
- libzfs_handle_t *hdl = zhp->zfs_hdl;
-
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"),
- zhp->zfs_name);
- switch (err) {
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- err = zfs_error(hdl, EZFS_BADVERSION, errbuf);
- break;
- case EINVAL:
- err = zfs_error(hdl, EZFS_BADTYPE, errbuf);
- break;
- case ENOENT:
- err = zfs_error(hdl, EZFS_NOENT, errbuf);
- break;
- default:
- err = zfs_standard_error_fmt(hdl, errno, errbuf);
- break;
- }
- }
-
- return (err);
-}
-
-/*
- * Convert the zvol's volume size to an appropriate reservation.
- * Note: If this routine is updated, it is necessary to update the ZFS test
- * suite's shell version in reservation.kshlib.
- */
-uint64_t
-zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props)
-{
- uint64_t numdb;
- uint64_t nblocks, volblocksize;
- int ncopies;
- char *strval;
-
- if (nvlist_lookup_string(props,
- zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0)
- ncopies = atoi(strval);
- else
- ncopies = 1;
- if (nvlist_lookup_uint64(props,
- zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
- &volblocksize) != 0)
- volblocksize = ZVOL_DEFAULT_BLOCKSIZE;
- nblocks = volsize/volblocksize;
- /* start with metadnode L0-L6 */
- numdb = 7;
- /* calculate number of indirects */
- while (nblocks > 1) {
- nblocks += DNODES_PER_LEVEL - 1;
- nblocks /= DNODES_PER_LEVEL;
- numdb += nblocks;
- }
- numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1);
- volsize *= ncopies;
- /*
- * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't
- * compressed, but in practice they compress down to about
- * 1100 bytes
- */
- numdb *= 1ULL << DN_MAX_INDBLKSHIFT;
- volsize += numdb;
- return (volsize);
-}
-
-/*
- * Attach/detach the given filesystem to/from the given jail.
- */
-int
-zfs_jail(zfs_handle_t *zhp, int jailid, int attach)
-{
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- zfs_cmd_t zc = { 0 };
- char errbuf[1024];
- unsigned long cmd;
- int ret;
-
- if (attach) {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name);
- } else {
- (void) snprintf(errbuf, sizeof (errbuf),
- dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name);
- }
-
- switch (zhp->zfs_type) {
- case ZFS_TYPE_VOLUME:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "volumes can not be jailed"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case ZFS_TYPE_SNAPSHOT:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "snapshots can not be jailed"));
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- }
- assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM);
-
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- zc.zc_objset_type = DMU_OST_ZFS;
- zc.zc_jailid = jailid;
-
- cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL;
- if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0)
- zfs_standard_error(hdl, errno, errbuf);
-
- return (ret);
-}