/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2010 Nexenta Systems, Inc. All rights reserved.
- * Copyright (c) 2011 by Delphix. All rights reserved.
+ * Copyright (c) 2013, 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) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>.
+ * Copyright (c) 2013 Martin Matuska. All rights reserved.
+ * Copyright (c) 2013 Steven Hartland. All rights reserved.
+ * Copyright 2016 Nexenta Systems, Inc.
+ * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
+ * Copyright 2017 RackTop Systems.
*/
#include <ctype.h>
#include <fcntl.h>
#include <sys/mntent.h>
#include <sys/mount.h>
-#include <priv.h>
#include <pwd.h>
#include <grp.h>
#include <stddef.h>
#include "libzfs_impl.h"
#include "zfs_deleg.h"
-static int zvol_create_link_common(libzfs_handle_t *, const char *, int);
static int userquota_propname_decode(const char *propname, boolean_t zoned,
zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp);
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:
- break;
+ assert(!"unhandled zfs_type_t");
}
return (NULL);
namecheck_err_t why;
char what;
- (void) zfs_prop_get_table();
- if (dataset_namecheck(path, &why, &what) != 0) {
+ if (entity_namecheck(path, &why, &what) != 0) {
if (hdl != NULL) {
switch (why) {
case NAME_ERR_TOOLONG:
"'%c' in name"), what);
break;
- case NAME_ERR_MULTIPLE_AT:
+ case NAME_ERR_MULTIPLE_DELIMITERS:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "multiple '@' delimiters in name"));
+ "multiple '@' and/or '#' delimiters in "
+ "name"));
break;
case NAME_ERR_NOLETTER:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"reserved disk name"));
break;
+
default:
+ zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
+ "(%d) not defined"), why);
break;
}
}
if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) {
if (hdl != NULL)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "snapshot delimiter '@' in filesystem name"));
+ "snapshot delimiter '@' is not expected here"));
return (0);
}
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,
int len;
zpool_handle_t *zph;
- len = strcspn(zhp->zfs_name, "/@") + 1;
+ len = strcspn(zhp->zfs_name, "/@#") + 1;
pool_name = zfs_alloc(zhp->zfs_hdl, len);
(void) strlcpy(pool_name, zhp->zfs_name, len);
{
libzfs_handle_t *hdl = zhp->zfs_hdl;
nvlist_t *recvdprops;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
int err;
if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0)
get_stats(zfs_handle_t *zhp)
{
int rc = 0;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0)
return (-1);
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); /* zpios' and other testing datasets are
- of this type, ignore if encountered */
+ return (-1);
else
abort();
zfs_handle_t *
make_dataset_handle(libzfs_handle_t *hdl, const char *path)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1);
return (zhp);
}
-static zfs_handle_t *
+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);
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, filesystem, or volume. The 'types'
+ * 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 *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, ZFS_TYPE_DATASET, B_FALSE)) {
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "invalid dataset name"));
+ if (!zfs_validate_name(hdl, path, types, B_FALSE)) {
(void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
return (NULL);
}
/*
- * Try to get stats for the dataset, which will tell us if it exists.
+ * Bookmarks needs to be handled separately.
*/
- errno = 0;
- if ((zhp = make_dataset_handle(hdl, path)) == NULL) {
- (void) zfs_standard_error(hdl, errno, errbuf);
- return (NULL);
+ 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 (!(types & zhp->zfs_type)) {
static int
libzfs_mnttab_cache_compare(const void *arg1, const void *arg2)
{
- const mnttab_node_t *mtn1 = arg1;
- const mnttab_node_t *mtn2 = 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);
- if (rv == 0)
- return (0);
- return (rv > 0 ? 1 : -1);
+ return (AVL_ISIGN(rv));
}
void
sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node));
}
-void
+int
libzfs_mnttab_update(libzfs_handle_t *hdl)
{
struct mnttab entry;
- rewind(hdl->libzfs_mnttab);
+ /* Reopen MNTTAB to prevent reading stale data from open file */
+ if (freopen(MNTTAB, "r", hdl->libzfs_mnttab) == NULL)
+ return (ENOENT);
+
while (getmntent(hdl->libzfs_mnttab, &entry) == 0) {
mnttab_node_t *mtn;
+ avl_index_t where;
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);
+
+ /* Exclude duplicate mounts */
+ if (avl_find(&hdl->libzfs_mnttab_cache, mtn, &where) != 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);
+ continue;
+ }
+
avl_add(&hdl->libzfs_mnttab_cache, mtn);
}
+
+ return (0);
}
void
void *cookie = NULL;
mnttab_node_t *mtn;
- while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie))) {
+ 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);
{
mnttab_node_t find;
mnttab_node_t *mtn;
+ int error;
if (!hdl->libzfs_mnttab_enable) {
struct mnttab srch = { 0 };
if (avl_numnodes(&hdl->libzfs_mnttab_cache))
libzfs_mnttab_fini(hdl);
- rewind(hdl->libzfs_mnttab);
+
+ /* Reopen MNTTAB to prevent reading stale data from open file */
+ if (freopen(MNTTAB, "r", hdl->libzfs_mnttab) == NULL)
+ return (ENOENT);
+
srch.mnt_special = (char *)fsname;
srch.mnt_fstype = MNTTYPE_ZFS;
if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0)
}
if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0)
- libzfs_mnttab_update(hdl);
+ if ((error = libzfs_mnttab_update(hdl)) != 0)
+ return (error);
find.mtn_mt.mnt_special = (char *)fsname;
mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL);
mnttab_node_t *ret;
find.mtn_mt.mnt_special = (char *)fsname;
- if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL))) {
+ 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);
*/
nvlist_t *
zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl,
- uint64_t zoned, zfs_handle_t *zhp, const char *errbuf)
+ uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl,
+ const char *errbuf)
{
nvpair_t *elem;
uint64_t intval;
}
if (uqtype != ZFS_PROP_USERQUOTA &&
- uqtype != ZFS_PROP_GROUPQUOTA) {
+ uqtype != ZFS_PROP_GROUPQUOTA &&
+ uqtype != ZFS_PROP_USEROBJQUOTA &&
+ uqtype != ZFS_PROP_GROUPOBJQUOTA) {
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN, "'%s' is readonly"),
propname);
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) {
goto error;
}
- if (!zfs_prop_valid_for_type(prop, type)) {
+ if (!zfs_prop_valid_for_type(prop, type, B_FALSE)) {
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN, "'%s' does not "
"apply to datasets of this type"), propname);
break;
}
- case ZFS_PROP_RECORDSIZE:
case ZFS_PROP_VOLBLOCKSIZE:
- /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */
+ case ZFS_PROP_RECORDSIZE:
+ {
+ int maxbs = SPA_MAXBLOCKSIZE;
+ char buf[64];
+
+ if (zpool_hdl != NULL) {
+ maxbs = zpool_get_prop_int(zpool_hdl,
+ ZPOOL_PROP_MAXBLOCKSIZE, NULL);
+ }
+ /*
+ * The value must be a power of two between
+ * SPA_MINBLOCKSIZE and maxbs.
+ */
if (intval < SPA_MINBLOCKSIZE ||
- intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) {
+ intval > maxbs || !ISP2(intval)) {
+ zfs_nicebytes(maxbs, buf, sizeof (buf));
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "'%s' must be power of 2 from %u "
- "to %uk"), propname,
- (uint_t)SPA_MINBLOCKSIZE,
- (uint_t)SPA_MAXBLOCKSIZE >> 10);
+ "'%s' must be power of 2 from 512B "
+ "to %s"), propname, buf);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
-
+ }
case ZFS_PROP_MLSLABEL:
{
#ifdef HAVE_MLSLABEL
"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);
}
break;
+
case ZFS_PROP_UTF8ONLY:
chosen_utf = (int)intval;
break;
+
case ZFS_PROP_NORMALIZE:
chosen_normal = (int)intval;
break;
+
default:
break;
}
case ZFS_PROP_VOLSIZE:
if (intval % blocksize != 0) {
- zfs_nicenum(blocksize, buf,
+ zfs_nicebytes(blocksize, buf,
sizeof (buf));
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' must be a multiple of "
goto error;
}
break;
+
default:
break;
}
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,
if (zfs_which_resv_prop(zhp, &resv_prop) < 0)
return (-1);
old_reservation = zfs_prop_get_int(zhp, resv_prop);
- if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) !=
- old_reservation) || nvlist_lookup_uint64(nvl,
- zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) {
+
+ 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)
+ &new_volsize) != 0) {
+ fnvlist_free(props);
return (-1);
- new_reservation = zvol_volsize_to_reservation(new_volsize,
- zhp->zfs_props);
+ }
+ 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);
(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 "
break;
case ERANGE:
- if (prop == ZFS_PROP_COMPRESSION) {
+ if (prop == ZFS_PROP_COMPRESSION ||
+ prop == ZFS_PROP_DNODESIZE ||
+ 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);
}
switch (prop) {
case ZFS_PROP_ATIME:
+ case ZFS_PROP_RELATIME:
case ZFS_PROP_DEVICES:
case ZFS_PROP_EXEC:
case ZFS_PROP_SETUID:
int
zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
int ret = -1;
- prop_changelist_t *cl = NULL;
char errbuf[1024];
libzfs_handle_t *hdl = zhp->zfs_hdl;
- nvlist_t *nvl = NULL, *realprops;
- zfs_prop_t prop;
- boolean_t do_prefix;
- uint64_t idx;
- int added_resv = 0;
+ nvlist_t *nvl = NULL;
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
goto error;
}
- if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl,
- zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL)
- goto error;
+ ret = zfs_prop_set_list(zhp, nvl);
+error:
nvlist_free(nvl);
- nvl = realprops;
+ return (ret);
+}
- prop = zfs_name_to_prop(propname);
- if (prop == ZFS_PROP_VOLSIZE) {
- if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1)
- goto error;
- }
- if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL)
- goto error;
+/*
+ * 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 = 0;
+ int added_resv = 0;
+ zfs_prop_t prop = 0;
+ nvpair_t *elem;
- 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);
+ (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;
- }
/*
- * If the dataset's canmount property is being set to noauto,
- * then we want to prevent unmounting & remounting it.
+ * We have to check for any extra properties which need to be added
+ * before computing the length of the nvlist.
*/
- do_prefix = !((prop == ZFS_PROP_CANMOUNT) &&
- (zprop_string_to_index(prop, propval, &idx,
- ZFS_TYPE_DATASET) == 0) && (idx == ZFS_CANMOUNT_NOAUTO));
-
- if (do_prefix && (ret = changelist_prefix(cl)) != 0)
+ for (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;
+ }
+ }
+ /*
+ * Check how many properties we're setting and allocate an array to
+ * store changelist pointers for postfix().
+ */
+ for (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 (elem = nvlist_next_nvpair(nvl, NULL);
+ elem != NULL;
+ elem = nvlist_next_nvpair(nvl, elem)) {
+
+ 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;
+ }
+
+ 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 property.
+ * Execute the corresponding ioctl() to set this list of properties.
*/
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0)
+ 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) {
- zfs_setprop_error(hdl, prop, errno, errbuf);
+ /* 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 (elem = nvlist_next_nvpair(nvl, NULL);
+ elem != NULL;
+ elem = nvlist_next_nvpair(nvl, elem)) {
+ 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,
(void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc);
}
} else {
- if (do_prefix)
- ret = changelist_postfix(cl);
+ 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;
+ }
+ }
if (ret == 0) {
/*
error:
nvlist_free(nvl);
zcmd_free_nvlists(&zc);
- if (cl)
- changelist_free(cl);
+ 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);
}
int
zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
int ret;
prop_changelist_t *cl;
libzfs_handle_t *hdl = zhp->zfs_hdl;
/*
* Check to see if the value applies to this type
*/
- if (!zfs_prop_valid_for_type(prop, zhp->zfs_type))
+ if (!zfs_prop_valid_for_type(prop, zhp->zfs_type, B_FALSE))
return (zfs_error(hdl, EZFS_PROPTYPE, errbuf));
/*
* Refresh the statistics so the new property is reflected.
*/
(void) get_stats(zhp);
+
+ /*
+ * Remount the filesystem to propagate the change
+ * if one of the options handled by the generic
+ * Linux namespace layer has been modified.
+ */
+ if (zfs_is_namespace_prop(prop) &&
+ zfs_is_mounted(zhp, NULL))
+ ret = zfs_mount(zhp, MNTOPT_REMOUNT, 0);
}
error:
return (value);
}
-static char *
+static const char *
getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source)
{
nvlist_t *nv;
- char *value;
+ const char *value;
*source = NULL;
if (nvlist_lookup_nvlist(zhp->zfs_props,
zfs_prop_to_name(prop), &nv) == 0) {
- verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 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);
- if ((value = (char *)zfs_prop_default_string(prop)) == NULL)
- value = "";
+ value = zfs_prop_default_string(prop);
*source = "";
}
* 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/mtab entry, searching for the appropriate options.
- * If they differ from the on-disk values, report the current values and mark
- * the source "temporary".
+ * the contents of the /proc/self/mounts 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", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
nvlist_t *zplprops = NULL;
struct mnttab mnt;
char *mntopt_on = NULL;
*source = NULL;
+ /*
+ * If the property is being fetched for a snapshot, check whether
+ * the property is valid for the snapshot's head dataset type.
+ */
+ if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT &&
+ !zfs_prop_valid_for_type(prop, zhp->zfs_head_type, B_TRUE)) {
+ *val = zfs_prop_default_numeric(prop);
+ return (-1);
+ }
+
switch (prop) {
case ZFS_PROP_ATIME:
mntopt_on = MNTOPT_ATIME;
mntopt_off = MNTOPT_NOATIME;
break;
+ case ZFS_PROP_RELATIME:
+ mntopt_on = MNTOPT_RELATIME;
+ mntopt_off = MNTOPT_NORELATIME;
+ break;
+
case ZFS_PROP_DEVICES:
mntopt_on = MNTOPT_DEVICES;
mntopt_off = MNTOPT_NODEVICES;
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/mtab), we defer its calculation until
- * we're looking up a property which requires its presence.
+ * (iterating over all of /proc/self/mounts), 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)) {
switch (prop) {
case ZFS_PROP_ATIME:
+ case ZFS_PROP_RELATIME:
case ZFS_PROP_DEVICES:
case ZFS_PROP_EXEC:
case ZFS_PROP_READONLY:
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) {
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)
+ if (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);
+ if (prop == ZFS_PROP_VERSION &&
+ zhp->zfs_type == ZFS_TYPE_VOLUME)
+ *val = zfs_prop_default_numeric(prop);
return (-1);
}
if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 ||
zcmd_free_nvlists(&zc);
return (-1);
}
- if (zplprops)
- nvlist_free(zplprops);
+ 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:
/*
* If we tried to use a default value for a
* readonly property, it means that it was not
- * present.
+ * 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;
get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source,
char *statbuf, size_t statlen)
{
- if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY)
+ if (statbuf == NULL ||
+ srctype == NULL || *srctype == ZPROP_SRC_TEMPORARY) {
return;
+ }
if (source == NULL) {
*srctype = ZPROP_SRC_NONE;
err = zfs_prop_get(zhp, prop, propbuf, proplen,
NULL, NULL, 0, literal);
zfs_unset_recvd_props_mode(zhp, &cookie);
- } else if (zfs_prop_userquota(propname)) {
- return (-1);
} else {
nvlist_t *propval;
char *recvdval;
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);
+ if (root == NULL) {
+ nvlist_free(nv);
+ nvlist_free(value);
+ return (NULL);
+ }
+
+ (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);
+}
+
/*
* Retrieve a property from the given object. If 'literal' is specified, then
* numbers are left as exact values. Otherwise, numbers are converted to a
{
char *source = NULL;
uint64_t val;
- char *str;
+ 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))
+ if (!zfs_prop_valid_for_type(prop, zhp->zfs_type, B_FALSE))
return (-1);
if (received && zfs_prop_readonly(prop))
localtime_r(&time, &t) == NULL ||
strftime(propbuf, proplen, "%a %b %e %k:%M %Y",
&t) == 0)
- (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t) val);
+ (void) snprintf(propbuf, proplen, "%llu",
+ (u_longlong_t)val);
}
break;
}
if ((zpool_get_prop(zhp->zpool_hdl,
- ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) ||
- (strcmp(root, "-") == 0))
+ ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL,
+ B_FALSE)) || (strcmp(root, "-") == 0))
root[0] = '\0';
/*
* Special case an alternate root of '/'. This will
break;
case ZFS_PROP_ORIGIN:
- (void) strlcpy(propbuf, getprop_string(zhp, prop, &source),
- proplen);
- /*
- * If there is no parent at all, return failure to indicate that
- * it doesn't apply to this dataset.
- */
- if (propbuf[0] == '\0')
+ str = getprop_string(zhp, prop, &source);
+ if (str == NULL)
+ return (-1);
+ (void) strlcpy(propbuf, str, proplen);
+ break;
+
+ case ZFS_PROP_CLONES:
+ if (get_clones_string(zhp, propbuf, proplen) != 0)
return (-1);
break;
(void) snprintf(propbuf, proplen, "%llu",
(u_longlong_t)val);
else
- zfs_nicenum(val, propbuf, proplen);
+ zfs_nicebytes(val, propbuf, proplen);
+ }
+ 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);
}
break;
case ZFS_TYPE_SNAPSHOT:
str = "snapshot";
break;
+ case ZFS_TYPE_BOOKMARK:
+ str = "bookmark";
+ break;
default:
abort();
}
}
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);
+ break;
+
+ case ZFS_PROP_REFERENCED:
+ case ZFS_PROP_AVAILABLE:
+ case ZFS_PROP_USED:
+ case ZFS_PROP_USEDSNAP:
+ case ZFS_PROP_USEDDS:
+ case ZFS_PROP_USEDREFRESERV:
+ case ZFS_PROP_USEDCHILD:
+ 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_nicebytes(val, propbuf, proplen);
+ break;
+
default:
switch (zfs_prop_get_type(prop)) {
case PROP_TYPE_NUMBER:
break;
case PROP_TYPE_STRING:
- (void) strlcpy(propbuf,
- getprop_string(zhp, prop, &source), proplen);
+ str = getprop_string(zhp, prop, &source);
+ if (str == NULL)
+ return (-1);
+ (void) strlcpy(propbuf, str, proplen);
break;
case PROP_TYPE_INDEX:
zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop)
{
char *source;
- uint64_t val;
+ uint64_t val = 0;
(void) get_numeric_property(zhp, prop, NULL, &source, &val);
/*
* Check to see if this property applies to our object
*/
- if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) {
+ if (!zfs_prop_valid_for_type(prop, zhp->zfs_type, B_FALSE)) {
return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE,
dgettext(TEXT_DOMAIN, "cannot get property '%s'"),
zfs_prop_to_name(prop)));
return (EINVAL);
*typep = type;
- isuser = (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_USERUSED);
- isgroup = (type == ZFS_PROP_GROUPQUOTA || type == ZFS_PROP_GROUPUSED);
+ isuser = (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_USERUSED ||
+ type == ZFS_PROP_USEROBJQUOTA ||
+ type == ZFS_PROP_USEROBJUSED);
+ isgroup = (type == ZFS_PROP_GROUPQUOTA || type == ZFS_PROP_GROUPUSED ||
+ type == ZFS_PROP_GROUPOBJQUOTA ||
+ type == ZFS_PROP_GROUPOBJUSED);
cp = strchr(propname, '@') + 1;
return (ENOSYS);
#endif /* HAVE_IDMAP */
} else {
-#ifdef HAVE_IDMAP
/* It's a user/group ID (eg "12345"). */
uid_t id;
- idmap_rid_t rid;
- char *mapdomain;
char *end;
-
id = strtoul(cp, &end, 10);
if (*end != '\0')
return (EINVAL);
if (id > MAXUID) {
+#ifdef HAVE_IDMAP
/* It's an ephemeral ID. */
+ idmap_rid_t rid;
+ char *mapdomain;
+
if (idmap_id_to_numeric_domain_rid(id, isuser,
&mapdomain, &rid) != 0)
return (ENOENT);
(void) strlcpy(domain, mapdomain, domainlen);
*ridp = rid;
+#else
+ return (ENOSYS);
+#endif /* HAVE_IDMAP */
} else {
*ridp = id;
}
-#else
- return (ENOSYS);
-#endif /* HAVE_IDMAP */
}
return (0);
uint64_t *propvalue, zfs_userquota_prop_t *typep)
{
int err;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
- (void) strncpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
+ (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),
if (literal) {
(void) snprintf(propbuf, proplen, "%llu",
- (u_longlong_t)propvalue);
+ (u_longlong_t)propvalue);
} else if (propvalue == 0 &&
- (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) {
+ (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA ||
+ type == ZFS_PROP_USEROBJQUOTA || type == ZFS_PROP_GROUPOBJQUOTA)) {
(void) strlcpy(propbuf, "none", proplen);
+ } else if (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA ||
+ type == ZFS_PROP_USERUSED || type == ZFS_PROP_GROUPUSED) {
+ zfs_nicebytes(propvalue, propbuf, proplen);
} 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)
+int
+zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname,
+ uint64_t *propvalue)
{
- return (zhp->zfs_name);
-}
+ int err;
+ zfs_cmd_t zc = {"\0"};
+ const char *snapname;
-/*
- * Returns the type of the given zfs handle.
- */
-zfs_type_t
-zfs_get_type(const zfs_handle_t *zhp)
-{
- return (zhp->zfs_type);
-}
+ (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-static int
-zfs_do_list_ioctl(zfs_handle_t *zhp, int arg, zfs_cmd_t *zc)
-{
- int rc;
- uint64_t orig_cookie;
+ 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));
+ }
- orig_cookie = zc->zc_cookie;
-top:
- (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name));
- rc = ioctl(zhp->zfs_hdl->libzfs_fd, arg, zc);
+ err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc);
+ if (err)
+ return (err);
- if (rc == -1) {
- switch (errno) {
- case ENOMEM:
- /* expand nvlist memory and try again */
- if (zcmd_expand_dst_nvlist(zhp->zfs_hdl, zc) != 0) {
- zcmd_free_nvlists(zc);
- return (-1);
- }
- zc->zc_cookie = orig_cookie;
- goto top;
- /*
- * An errno value of ESRCH indicates normal completion.
- * If ENOENT is returned, then the underlying dataset
- * has been removed since we obtained the handle.
- */
- case ESRCH:
- case ENOENT:
- rc = 1;
- break;
- default:
- rc = zfs_standard_error(zhp->zfs_hdl, errno,
- dgettext(TEXT_DOMAIN,
- "cannot iterate filesystems"));
- break;
- }
- }
- return (rc);
+ *propvalue = zc.zc_cookie;
+ return (0);
}
-/*
- * Iterate over all child filesystems
- */
int
-zfs_iter_filesystems(zfs_handle_t *zhp, zfs_iter_f func, void *data)
+zfs_prop_get_written(zfs_handle_t *zhp, const char *propname,
+ char *propbuf, int proplen, boolean_t literal)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- zfs_handle_t *nzhp;
- int ret;
-
- if (zhp->zfs_type != ZFS_TYPE_FILESYSTEM)
- return (0);
+ int err;
+ uint64_t propvalue;
- if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0)
- return (-1);
+ err = zfs_prop_get_written_int(zhp, propname, &propvalue);
- while ((ret = zfs_do_list_ioctl(zhp, ZFS_IOC_DATASET_LIST_NEXT,
- &zc)) == 0) {
- /*
- * Silently ignore errors, as the only plausible explanation is
- * that the pool has since been removed.
- */
- if ((nzhp = make_dataset_handle_zc(zhp->zfs_hdl,
- &zc)) == NULL) {
- continue;
- }
+ if (err)
+ return (err);
- if ((ret = func(nzhp, data)) != 0) {
- zcmd_free_nvlists(&zc);
- return (ret);
- }
+ if (literal) {
+ (void) snprintf(propbuf, proplen, "%llu",
+ (u_longlong_t)propvalue);
+ } else {
+ zfs_nicebytes(propvalue, propbuf, proplen);
}
- zcmd_free_nvlists(&zc);
- return ((ret < 0) ? ret : 0);
+
+ return (0);
}
/*
- * Iterate over all snapshots
+ * Returns the name of the given zfs handle.
*/
-int
-zfs_iter_snapshots(zfs_handle_t *zhp, zfs_iter_f func, void *data)
+const char *
+zfs_get_name(const zfs_handle_t *zhp)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- zfs_handle_t *nzhp;
- int ret;
-
- if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT)
- return (0);
-
- if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0)
- return (-1);
- while ((ret = zfs_do_list_ioctl(zhp, ZFS_IOC_SNAPSHOT_LIST_NEXT,
- &zc)) == 0) {
-
- if ((nzhp = make_dataset_handle_zc(zhp->zfs_hdl,
- &zc)) == NULL) {
- continue;
- }
-
- if ((ret = func(nzhp, data)) != 0) {
- zcmd_free_nvlists(&zc);
- return (ret);
- }
- }
- zcmd_free_nvlists(&zc);
- return ((ret < 0) ? ret : 0);
+ return (zhp->zfs_name);
}
/*
- * Iterate over all children, snapshots and filesystems
+ * Returns the name of the parent pool for the given zfs handle.
*/
-int
-zfs_iter_children(zfs_handle_t *zhp, zfs_iter_f func, void *data)
+const char *
+zfs_get_pool_name(const zfs_handle_t *zhp)
{
- int ret;
-
- if ((ret = zfs_iter_filesystems(zhp, func, data)) != 0)
- return (ret);
+ return (zhp->zpool_hdl->zpool_name);
+}
- return (zfs_iter_snapshots(zhp, func, data));
+/*
+ * Returns the type of the given zfs handle.
+ */
+zfs_type_t
+zfs_get_type(const zfs_handle_t *zhp)
+{
+ return (zhp->zfs_type);
}
/*
/*
* Given a complete name, return just the portion that refers to the parent.
- * Can return NULL if this is a pool.
+ * 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 *loc;
+ char *slashp;
- if ((loc = strrchr(path, '/')) == NULL)
- return (-1);
+ (void) strlcpy(buf, path, buflen);
- (void) strncpy(buf, path, MIN(buflen, loc - path));
- buf[loc - path] = '\0';
+ if ((slashp = strrchr(buf, '/')) == NULL)
+ return (-1);
+ *slashp = '\0';
return (0);
}
check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned,
boolean_t accept_ancestor, int *prefixlen)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- char parent[ZFS_MAXNAMELEN];
+ zfs_cmd_t zc = {"\0"};
+ char parent[ZFS_MAX_DATASET_NAME_LEN];
char *slash;
zfs_handle_t *zhp;
char errbuf[1024];
* up to the prefixlen-long one.
*/
for (cp = target + prefixlen + 1;
- (cp = strchr(cp, '/')); *cp = '/', cp++) {
- char *logstr;
+ (cp = strchr(cp, '/')) != NULL; *cp = '/', cp++) {
*cp = '\0';
continue;
}
- logstr = hdl->libzfs_log_str;
- hdl->libzfs_log_str = NULL;
if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM,
NULL) != 0) {
- hdl->libzfs_log_str = logstr;
opname = dgettext(TEXT_DOMAIN, "create");
goto ancestorerr;
}
- hdl->libzfs_log_str = logstr;
h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM);
if (h == NULL) {
opname = dgettext(TEXT_DOMAIN, "open");
zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type,
nvlist_t *props)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
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);
* will return ENOENT, not EEXIST. To prevent this from happening, we
* first try to see if the dataset exists.
*/
- (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name));
- if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) {
+ 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)
- zc.zc_objset_type = DMU_OST_ZVOL;
+ ost = LZC_DATSET_TYPE_ZVOL;
else
- zc.zc_objset_type = DMU_OST_ZFS;
+ 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, errbuf)) == 0)
+ zoned, NULL, zpool_handle, errbuf)) == 0) {
+ zpool_close(zpool_handle);
return (-1);
+ }
+ zpool_close(zpool_handle);
if (type == ZFS_TYPE_VOLUME) {
/*
}
}
- if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0)
- return (-1);
- nvlist_free(props);
-
/* create the dataset */
- ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc);
-
- if (ret == 0 && type == ZFS_TYPE_VOLUME) {
- ret = zvol_create_link(hdl, path);
- if (ret) {
- (void) zfs_standard_error(hdl, errno,
- dgettext(TEXT_DOMAIN,
- "Volume successfully created, but device links "
- "were not created"));
- zcmd_free_nvlists(&zc);
- return (-1);
- }
- }
-
- zcmd_free_nvlists(&zc);
+ ret = lzc_create(path, ost, props);
+ nvlist_free(props);
/* check for failure */
if (ret != 0) {
- char parent[ZFS_MAXNAMELEN];
+ char parent[ZFS_MAX_DATASET_NAME_LEN];
(void) parent_name(path, parent, sizeof (parent));
switch (errno) {
"parent '%s' is not a filesystem"), parent);
return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
- case EDOM:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "volume block size must be power of 2 from "
- "%u to %uk"),
- (uint_t)SPA_MINBLOCKSIZE,
- (uint_t)SPA_MAXBLOCKSIZE >> 10);
-
- return (zfs_error(hdl, EZFS_BADPROP, errbuf));
-
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded to set this "
/*
* Destroys the given dataset. The caller must make sure that the filesystem
- * isn't mounted, and that there are no active dependents.
+ * 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)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
+
+ if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) {
+ nvlist_t *nv = fnvlist_alloc();
+ fnvlist_add_boolean(nv, zhp->zfs_name);
+ int error = lzc_destroy_bookmarks(nv, NULL);
+ fnvlist_free(nv);
+ if (error != 0) {
+ return (zfs_standard_error_fmt(zhp->zfs_hdl, errno,
+ dgettext(TEXT_DOMAIN, "cannot destroy '%s'"),
+ zhp->zfs_name));
+ }
+ return (0);
+ }
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
if (ZFS_IS_VOLUME(zhp)) {
- if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0)
- return (-1);
-
zc.zc_objset_type = DMU_OST_ZVOL;
} else {
zc.zc_objset_type = DMU_OST_ZFS;
}
zc.zc_defer_destroy = defer;
- if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0) {
+ if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 &&
+ errno != ENOENT) {
return (zfs_standard_error_fmt(zhp->zfs_hdl, errno,
dgettext(TEXT_DOMAIN, "cannot destroy '%s'"),
zhp->zfs_name));
}
struct destroydata {
- char *snapname;
- boolean_t gotone;
- boolean_t closezhp;
+ nvlist_t *nvl;
+ const char *snapname;
};
static int
zfs_check_snap_cb(zfs_handle_t *zhp, void *arg)
{
struct destroydata *dd = arg;
- zfs_handle_t *szhp;
- char name[ZFS_MAXNAMELEN];
- boolean_t closezhp = dd->closezhp;
+ char name[ZFS_MAX_DATASET_NAME_LEN];
int rv = 0;
- (void) strlcpy(name, zhp->zfs_name, sizeof (name));
- (void) strlcat(name, "@", sizeof (name));
- (void) strlcat(name, dd->snapname, sizeof (name));
-
- szhp = make_dataset_handle(zhp->zfs_hdl, name);
- if (szhp) {
- dd->gotone = B_TRUE;
- zfs_close(szhp);
- }
+ if (snprintf(name, sizeof (name), "%s@%s", zhp->zfs_name,
+ dd->snapname) >= sizeof (name))
+ return (EINVAL);
- if (zhp->zfs_type == ZFS_TYPE_VOLUME) {
- (void) zvol_remove_link(zhp->zfs_hdl, name);
- /*
- * NB: this is simply a best-effort. We don't want to
- * return an error, because then we wouldn't visit all
- * the volumes.
- */
- }
+ if (lzc_exists(name))
+ verify(nvlist_add_boolean(dd->nvl, name) == 0);
- dd->closezhp = B_TRUE;
- rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, arg);
- if (closezhp)
- zfs_close(zhp);
+ rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd);
+ zfs_close(zhp);
return (rv);
}
int
zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
int ret;
struct destroydata dd = { 0 };
dd.snapname = snapname;
- (void) zfs_check_snap_cb(zhp, &dd);
+ verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0);
+ (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd);
- if (!dd.gotone) {
- return (zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT,
+ 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));
+ zhp->zfs_name, snapname);
+ } else {
+ ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer);
}
+ nvlist_free(dd.nvl);
+ return (ret);
+}
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value));
- zc.zc_defer_destroy = defer;
-
- ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS, &zc);
- if (ret != 0) {
- char errbuf[1024];
+/*
+ * 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;
+ nvpair_t *pair;
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot destroy '%s@%s'"), zc.zc_name, snapname);
+ ret = lzc_destroy_snaps(snaps, defer, &errlist);
- switch (errno) {
- case EEXIST:
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "snapshot is cloned"));
- return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf));
+ 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 (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:
- return (zfs_standard_error(zhp->zfs_hdl, errno,
- errbuf));
+ ret = zfs_standard_error(hdl, errno, errbuf);
+ break;
}
}
- return (0);
+ nvlist_free(errlist);
+ return (ret);
}
/*
int
zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- char parent[ZFS_MAXNAMELEN];
+ char parent[ZFS_MAX_DATASET_NAME_LEN];
int ret;
char errbuf[1024];
libzfs_handle_t *hdl = zhp->zfs_hdl;
- zfs_type_t type;
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 name */
+ /* validate the target/clone name */
if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE))
return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
(void) parent_name(target, parent, sizeof (parent));
/* do the clone */
- if (ZFS_IS_VOLUME(zhp)) {
- zc.zc_objset_type = DMU_OST_ZVOL;
- type = ZFS_TYPE_VOLUME;
- } else {
- zc.zc_objset_type = DMU_OST_ZFS;
- type = ZFS_TYPE_FILESYSTEM;
- }
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, errbuf)) == NULL)
+ zhp, zhp->zpool_hdl, errbuf)) == NULL)
return (-1);
-
- if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
- nvlist_free(props);
- return (-1);
- }
-
- nvlist_free(props);
}
- (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value));
- ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc);
-
- zcmd_free_nvlists(&zc);
+ ret = lzc_clone(target, zhp->zfs_name, props);
+ nvlist_free(props);
if (ret != 0) {
switch (errno) {
return (zfs_standard_error(zhp->zfs_hdl, errno,
errbuf));
}
- } else if (ZFS_IS_VOLUME(zhp)) {
- ret = zvol_create_link(zhp->zfs_hdl, target);
}
return (ret);
}
-typedef struct promote_data {
- char cb_mountpoint[MAXPATHLEN];
- const char *cb_target;
- const char *cb_errbuf;
- uint64_t cb_pivot_txg;
-} promote_data_t;
-
-static int
-promote_snap_cb(zfs_handle_t *zhp, void *data)
-{
- promote_data_t *pd = data;
- zfs_handle_t *szhp;
- char snapname[MAXPATHLEN];
- int rv = 0;
-
- /* We don't care about snapshots after the pivot point */
- if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > pd->cb_pivot_txg) {
- zfs_close(zhp);
- return (0);
- }
-
- /* Remove the device link if it's a zvol. */
- if (ZFS_IS_VOLUME(zhp))
- (void) zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name);
-
- /* Check for conflicting names */
- (void) strlcpy(snapname, pd->cb_target, sizeof (snapname));
- (void) strlcat(snapname, strchr(zhp->zfs_name, '@'), sizeof (snapname));
- szhp = make_dataset_handle(zhp->zfs_hdl, snapname);
- if (szhp != NULL) {
- zfs_close(szhp);
- zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
- "snapshot name '%s' from origin \n"
- "conflicts with '%s' from target"),
- zhp->zfs_name, snapname);
- rv = zfs_error(zhp->zfs_hdl, EZFS_EXISTS, pd->cb_errbuf);
- }
- zfs_close(zhp);
- return (rv);
-}
-
-static int
-promote_snap_done_cb(zfs_handle_t *zhp, void *data)
-{
- promote_data_t *pd = data;
-
- /* We don't care about snapshots after the pivot point */
- if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) <= pd->cb_pivot_txg) {
- /* Create the device link if it's a zvol. */
- if (ZFS_IS_VOLUME(zhp))
- (void) zvol_create_link(zhp->zfs_hdl, zhp->zfs_name);
- }
-
- zfs_close(zhp);
- return (0);
-}
-
/*
* Promotes the given clone fs to be the clone parent.
*/
zfs_promote(zfs_handle_t *zhp)
{
libzfs_handle_t *hdl = zhp->zfs_hdl;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- char parent[MAXPATHLEN];
- char *cp;
+ char snapname[ZFS_MAX_DATASET_NAME_LEN];
int ret;
- zfs_handle_t *pzhp;
- promote_data_t pd;
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
}
- (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent));
- if (parent[0] == '\0') {
+ 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));
}
- cp = strchr(parent, '@');
- *cp = '\0';
-
- /* Walk the snapshots we will be moving */
- pzhp = zfs_open(hdl, zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT);
- if (pzhp == NULL)
- return (-1);
- pd.cb_pivot_txg = zfs_prop_get_int(pzhp, ZFS_PROP_CREATETXG);
- zfs_close(pzhp);
- pd.cb_target = zhp->zfs_name;
- pd.cb_errbuf = errbuf;
- pzhp = zfs_open(hdl, parent, ZFS_TYPE_DATASET);
- if (pzhp == NULL)
- return (-1);
- (void) zfs_prop_get(pzhp, ZFS_PROP_MOUNTPOINT, pd.cb_mountpoint,
- sizeof (pd.cb_mountpoint), NULL, NULL, 0, FALSE);
- ret = zfs_iter_snapshots(pzhp, promote_snap_cb, &pd);
- if (ret != 0) {
- zfs_close(pzhp);
- return (-1);
- }
- /* issue the ioctl */
- (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin,
- sizeof (zc.zc_value));
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc);
+ ret = lzc_promote(zhp->zfs_name, snapname, sizeof (snapname));
if (ret != 0) {
- int save_errno = errno;
-
- (void) zfs_iter_snapshots(pzhp, promote_snap_done_cb, &pd);
- zfs_close(pzhp);
-
- switch (save_errno) {
+ switch (ret) {
case EEXIST:
- /*
- * There is a conflicting snapshot name. We
- * should have caught this above, but they could
- * have renamed something in the mean time.
- */
+ /* There is a conflicting snapshot name. */
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"conflicting snapshot '%s' from parent '%s'"),
- zc.zc_string, parent);
+ snapname, zhp->zfs_dmustats.dds_origin);
return (zfs_error(hdl, EZFS_EXISTS, errbuf));
default:
- return (zfs_standard_error(hdl, save_errno, errbuf));
+ return (zfs_standard_error(hdl, ret, errbuf));
}
- } else {
- (void) zfs_iter_snapshots(zhp, promote_snap_done_cb, &pd);
}
-
- zfs_close(pzhp);
return (ret);
}
-struct createdata {
- const char *cd_snapname;
- int cd_ifexists;
-};
+typedef struct snapdata {
+ nvlist_t *sd_nvl;
+ const char *sd_snapname;
+} snapdata_t;
static int
-zfs_create_link_cb(zfs_handle_t *zhp, void *arg)
+zfs_snapshot_cb(zfs_handle_t *zhp, void *arg)
{
- struct createdata *cd = arg;
- int ret;
-
- if (zhp->zfs_type == ZFS_TYPE_VOLUME) {
- char name[MAXPATHLEN];
+ snapdata_t *sd = arg;
+ char name[ZFS_MAX_DATASET_NAME_LEN];
+ int rv = 0;
- (void) strlcpy(name, zhp->zfs_name, sizeof (name));
- (void) strlcat(name, "@", sizeof (name));
- (void) strlcat(name, cd->cd_snapname, sizeof (name));
- (void) zvol_create_link_common(zhp->zfs_hdl, name,
- cd->cd_ifexists);
- /*
- * NB: this is simply a best-effort. We don't want to
- * return an error, because then we wouldn't visit all
- * the volumes.
- */
- }
+ if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) {
+ if (snprintf(name, sizeof (name), "%s@%s", zfs_get_name(zhp),
+ sd->sd_snapname) >= sizeof (name))
+ return (EINVAL);
- ret = zfs_iter_filesystems(zhp, zfs_create_link_cb, cd);
+ fnvlist_add_boolean(sd->sd_nvl, name);
+ rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd);
+ }
zfs_close(zhp);
- return (ret);
+ return (rv);
}
/*
- * Takes a snapshot of the given dataset.
+ * Creates snapshots. The keys in the snaps nvlist are the snapshots to be
+ * created.
*/
int
-zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive,
- nvlist_t *props)
+zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props)
{
- const char *delim;
- char parent[ZFS_MAXNAMELEN];
- zfs_handle_t *zhp;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
int ret;
char errbuf[1024];
+ nvpair_t *elem;
+ nvlist_t *errors;
+ zpool_handle_t *zpool_hdl;
+ char pool[ZFS_MAX_DATASET_NAME_LEN];
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot snapshot '%s'"), path);
+ "cannot create snapshots "));
- /* validate the target name */
- if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE))
- return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf));
-
- if (props) {
- if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT,
- props, B_FALSE, NULL, errbuf)) == NULL)
- return (-1);
+ elem = NULL;
+ while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) {
+ const char *snapname = nvpair_name(elem);
- if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
- nvlist_free(props);
- return (-1);
+ /* 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));
}
-
- nvlist_free(props);
}
- /* make sure the parent exists and is of the appropriate type */
- delim = strchr(path, '@');
- (void) strncpy(parent, path, delim - path);
- parent[delim - path] = '\0';
+ /*
+ * get pool handle for prop validation. assumes all snaps are in the
+ * same pool, as does lzc_snapshot (below).
+ */
+ elem = nvlist_next_nvpair(snaps, NULL);
+ (void) strlcpy(pool, nvpair_name(elem), sizeof (pool));
+ pool[strcspn(pool, "/@")] = '\0';
+ zpool_hdl = zpool_open(hdl, pool);
+ if (zpool_hdl == NULL)
+ return (-1);
- if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM |
- ZFS_TYPE_VOLUME)) == NULL) {
- zcmd_free_nvlists(&zc);
+ 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);
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value));
- if (ZFS_IS_VOLUME(zhp))
- zc.zc_objset_type = DMU_OST_ZVOL;
- else
- zc.zc_objset_type = DMU_OST_ZFS;
- zc.zc_cookie = recursive;
- ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc);
+ ret = lzc_snapshot(snaps, props, &errors);
- zcmd_free_nvlists(&zc);
+ 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);
- /*
- * if it was recursive, the one that actually failed will be in
- * zc.zc_name.
- */
- if (ret != 0)
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value);
+ break;
+ default:
+ (void) zfs_standard_error(hdl, ret, errbuf);
+ }
+ }
+ }
- if (ret == 0 && recursive) {
- struct createdata cd;
+ nvlist_free(props);
+ nvlist_free(errors);
+ return (ret);
+}
- cd.cd_snapname = delim + 1;
- cd.cd_ifexists = B_FALSE;
- (void) zfs_iter_filesystems(zhp, zfs_create_link_cb, &cd);
- }
- if (ret == 0 && zhp->zfs_type == ZFS_TYPE_VOLUME) {
- ret = zvol_create_link(zhp->zfs_hdl, path);
- if (ret != 0) {
- (void) zfs_standard_error(hdl, errno,
- dgettext(TEXT_DOMAIN,
- "Volume successfully snapshotted, but device links "
- "were not created"));
- zfs_close(zhp);
- return (-1);
- }
+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);
}
- if (ret != 0)
- (void) zfs_standard_error(hdl, errno, errbuf);
+ 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);
}
const char *cb_target; /* the snapshot */
uint64_t cb_create; /* creation time reference */
boolean_t cb_error;
- boolean_t cb_dependent;
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 (!cbp->cb_dependent) {
- if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 &&
- zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT &&
- zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) >
- cbp->cb_create) {
- char *logstr;
-
- cbp->cb_dependent = B_TRUE;
- cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE,
- rollback_destroy, cbp);
- cbp->cb_dependent = B_FALSE;
-
- logstr = zhp->zfs_hdl->libzfs_log_str;
- zhp->zfs_hdl->libzfs_log_str = NULL;
- cbp->cb_error |= zfs_destroy(zhp, B_FALSE);
- zhp->zfs_hdl->libzfs_log_str = logstr;
- }
- } else {
- /* We must destroy this clone; first unmount it */
- prop_changelist_t *clp;
+ 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);
- 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);
+ cbp->cb_error |= zfs_destroy(zhp, B_FALSE);
}
zfs_close(zhp);
* Given a dataset, rollback to a specific snapshot, discarding any
* data changes since then and making it the active dataset.
*
- * Any snapshots more recent than the target are destroyed, along with
- * their dependents.
+ * 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;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
boolean_t restore_resv = 0;
uint64_t old_volsize = 0, new_volsize;
zfs_prop_t resv_prop = { 0 };
zhp->zfs_type == ZFS_TYPE_VOLUME);
/*
- * Destroy all recent snapshots and its dependends.
+ * 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);
- (void) zfs_iter_children(zhp, rollback_destroy, &cb);
+ (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb);
+ (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb);
if (cb.cb_error)
return (-1);
*/
if (zhp->zfs_type == ZFS_TYPE_VOLUME) {
- if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0)
- return (-1);
if (zfs_which_resv_prop(zhp, &resv_prop) < 0)
return (-1);
old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
(old_volsize == zfs_prop_get_int(zhp, resv_prop));
}
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
-
- if (ZFS_IS_VOLUME(zhp))
- zc.zc_objset_type = DMU_OST_ZVOL;
- else
- zc.zc_objset_type = DMU_OST_ZFS;
-
/*
- * We rely on zfs_iter_children() to verify that there are no
- * newer snapshots for the given dataset. Therefore, we can
- * simply pass the name on to the ioctl() call. There is still
- * an unlikely race condition where the user has taken a
- * snapshot since we verified that this was the most recent.
- *
+ * 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.
*/
- if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) {
+ err = lzc_rollback_to(zhp->zfs_name, snap->zfs_name);
+ if (err == EXDEV) {
+ zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
+ "'%s' is not the latest snapshot"), snap->zfs_name);
+ (void) zfs_error_fmt(zhp->zfs_hdl, EZFS_BUSY,
+ dgettext(TEXT_DOMAIN, "cannot rollback '%s'"),
+ zhp->zfs_name);
+ return (err);
+ } else if (err != 0) {
(void) zfs_standard_error_fmt(zhp->zfs_hdl, errno,
dgettext(TEXT_DOMAIN, "cannot rollback '%s'"),
zhp->zfs_name);
*/
if ((zhp->zfs_type == ZFS_TYPE_VOLUME) &&
(zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) {
- if ((err = zvol_create_link(zhp->zfs_hdl, zhp->zfs_name))) {
- zfs_close(zhp);
- return (err);
- }
if (restore_resv) {
new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
if (old_volsize != new_volsize)
return (err);
}
-/*
- * Iterate over all dependents for a given dataset. This includes both
- * hierarchical dependents (children) and data dependents (snapshots and
- * clones). The bulk of the processing occurs in get_dependents() in
- * libzfs_graph.c.
- */
-int
-zfs_iter_dependents(zfs_handle_t *zhp, boolean_t allowrecursion,
- zfs_iter_f func, void *data)
-{
- char **dependents;
- size_t count;
- int i;
- zfs_handle_t *child;
- int ret = 0;
-
- if (get_dependents(zhp->zfs_hdl, allowrecursion, zhp->zfs_name,
- &dependents, &count) != 0)
- return (-1);
-
- for (i = 0; i < count; i++) {
- if ((child = make_dataset_handle(zhp->zfs_hdl,
- dependents[i])) == NULL)
- continue;
-
- if ((ret = func(child, data)) != 0)
- break;
- }
-
- for (i = 0; i < count; i++)
- free(dependents[i]);
- free(dependents);
-
- return (ret);
-}
-
/*
* Renames the given dataset.
*/
int
-zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive)
+zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive,
+ boolean_t force_unmount)
{
- int ret;
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ 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_MAXNAMELEN];
+ char parent[ZFS_MAX_DATASET_NAME_LEN];
libzfs_handle_t *hdl = zhp->zfs_hdl;
char errbuf[1024];
}
if (recursive) {
- struct destroydata dd;
-
parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name);
if (parentname == NULL) {
ret = -1;
ret = -1;
goto error;
}
-
- dd.snapname = delim + 1;
- dd.gotone = B_FALSE;
- dd.closezhp = B_TRUE;
-
- /* We remove any zvol links prior to renaming them */
- ret = zfs_iter_filesystems(zhrp, zfs_check_snap_cb, &dd);
- if (ret) {
- goto error;
- }
- } else {
- if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0, 0)) == NULL)
+ } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) {
+ if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0,
+ force_unmount ? MS_FORCE : 0)) == NULL)
return (-1);
if (changelist_haszonedchild(cl)) {
* On failure, we still want to remount any filesystems that
* were previously mounted, so we don't alter the system state.
*/
- if (recursive) {
- struct createdata cd;
-
- /* only create links for datasets that had existed */
- cd.cd_snapname = delim + 1;
- cd.cd_ifexists = B_TRUE;
- (void) zfs_iter_filesystems(zhrp, zfs_create_link_cb,
- &cd);
- } else {
+ if (cl != NULL)
(void) changelist_postfix(cl);
- }
} else {
- if (recursive) {
- struct createdata cd;
-
- /* only create links for datasets that had existed */
- cd.cd_snapname = strchr(target, '@') + 1;
- cd.cd_ifexists = B_TRUE;
- ret = zfs_iter_filesystems(zhrp, zfs_create_link_cb,
- &cd);
- } else {
+ if (cl != NULL) {
changelist_rename(cl, zfs_get_name(zhp), target);
ret = changelist_postfix(cl);
}
}
error:
- if (parentname) {
+ if (parentname != NULL) {
free(parentname);
}
- if (zhrp) {
+ if (zhrp != NULL) {
zfs_close(zhrp);
}
- if (cl) {
+ if (cl != NULL) {
changelist_free(cl);
}
return (ret);
}
-/*
- * Given a zvol dataset, issue the ioctl to create the appropriate minor node,
- * and wait briefly for udev to create the /dev link.
- */
-int
-zvol_create_link(libzfs_handle_t *hdl, const char *dataset)
-{
- return (zvol_create_link_common(hdl, dataset, B_FALSE));
-}
-
-static int
-zvol_create_link_common(libzfs_handle_t *hdl, const char *dataset, int ifexists)
-{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- char path[MAXPATHLEN];
- int error;
-
- (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
-
- /*
- * Issue the appropriate ioctl.
- */
- if (ioctl(hdl->libzfs_fd, ZFS_IOC_CREATE_MINOR, &zc) != 0) {
- switch (errno) {
- case EEXIST:
- /*
- * Silently ignore the case where the link already
- * exists. This allows 'zfs volinit' to be run multiple
- * times without errors.
- */
- return (0);
-
- case ENOENT:
- /*
- * Dataset does not exist in the kernel. If we
- * don't care (see zfs_rename), then ignore the
- * error quietly.
- */
- if (ifexists) {
- return (0);
- }
-
- /* FALLTHROUGH */
-
- default:
- return (zfs_standard_error_fmt(hdl, errno,
- dgettext(TEXT_DOMAIN, "cannot create device links "
- "for '%s'"), dataset));
- }
- }
-
- /*
- * Wait up to 10 seconds for udev to create the device.
- */
- (void) snprintf(path, sizeof (path), "%s/%s", ZVOL_DIR, dataset);
- error = zpool_label_disk_wait(path, 10000);
- if (error)
- (void) printf(gettext("%s may not be immediately "
- "available\n"), path);
-
- return (0);
-}
-
-/*
- * Remove a minor node for the given zvol and the associated /dev links.
- */
-int
-zvol_remove_link(libzfs_handle_t *hdl, const char *dataset)
-{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
-
- (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
-
- if (ioctl(hdl->libzfs_fd, ZFS_IOC_REMOVE_MINOR, &zc) != 0) {
- switch (errno) {
- case ENXIO:
- /*
- * Silently ignore the case where the link no longer
- * exists, so that 'zfs volfini' can be run multiple
- * times without errors.
- */
- return (0);
-
- default:
- return (zfs_standard_error_fmt(hdl, errno,
- dgettext(TEXT_DOMAIN, "cannot remove device "
- "links for '%s'"), dataset));
- }
- }
-
- return (0);
-}
-
nvlist_t *
zfs_get_user_props(zfs_handle_t *zhp)
{
* of the RECEIVED column.
*/
int
-zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received)
+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;
* 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)
+ 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, B_FALSE) == 0) {
+ 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), B_FALSE) == 0)
+ buf, sizeof (buf), literal) == 0)
if (strlen(buf) > entry->pl_recvd_width)
entry->pl_recvd_width = strlen(buf);
} else {
}
if (received && zfs_prop_get_recvd(zhp,
entry->pl_user_prop,
- buf, sizeof (buf), B_FALSE) == 0)
+ buf, sizeof (buf), literal) == 0)
if (strlen(buf) > entry->pl_recvd_width)
entry->pl_recvd_width = strlen(buf);
}
zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props)
{
nvpair_t *curr;
+ nvpair_t *next;
/*
* Keep a reference to the props-table against which we prune the
while (curr) {
zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr));
- nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr);
+ next = nvlist_next_nvpair(zhp->zfs_props, curr);
/*
* User properties will result in ZPROP_INVAL, and since we
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", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
nvlist_t *nvlist = NULL;
int error;
if (cmd == ZFS_SMB_ACL_RENAME) {
if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) {
(void) no_memory(hdl);
- return (-1);
+ return (0);
}
}
return (-1);
}
error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc);
- if (nvlist)
- nvlist_free(nvlist);
+ nvlist_free(nvlist);
return (error);
}
zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
zfs_userspace_cb_t func, void *arg)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- int error;
+ zfs_cmd_t zc = {"\0"};
zfs_useracct_t buf[100];
+ libzfs_handle_t *hdl = zhp->zfs_hdl;
+ int ret;
- (void) strncpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
+ (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
zc.zc_objset_type = type;
zc.zc_nvlist_dst = (uintptr_t)buf;
- /* CONSTCOND */
- while (1) {
+ for (;;) {
zfs_useracct_t *zua = buf;
zc.zc_nvlist_dst_size = sizeof (buf);
- error = ioctl(zhp->zfs_hdl->libzfs_fd,
- ZFS_IOC_USERSPACE_MANY, &zc);
- if (error || zc.zc_nvlist_dst_size == 0)
+ if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) {
+ char errbuf[1024];
+
+ if ((errno == ENOTSUP &&
+ (type == ZFS_PROP_USEROBJUSED ||
+ type == ZFS_PROP_GROUPOBJUSED ||
+ type == ZFS_PROP_USEROBJQUOTA ||
+ type == ZFS_PROP_GROUPOBJQUOTA)))
+ break;
+
+ (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) {
- error = func(arg, zua->zu_domain, zua->zu_rid,
- zua->zu_space);
- if (error != 0)
- return (error);
+ 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 (error);
+ 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;
+
+ if (snprintf(name, sizeof (name), "%s@%s", zhp->zfs_name,
+ ha->snapname) >= sizeof (name))
+ return (EINVAL);
+
+ 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, boolean_t temphold, boolean_t enoent_ok,
- int cleanup_fd, uint64_t dsobj, uint64_t createtxg)
+ 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)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ int ret;
+ nvlist_t *errors;
libzfs_handle_t *hdl = zhp->zfs_hdl;
+ char errbuf[1024];
+ nvpair_t *elem;
- ASSERT(!recursive || dsobj == 0);
+ errors = NULL;
+ ret = lzc_hold(holds, cleanup_fd, &errors);
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value));
- if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string))
- >= sizeof (zc.zc_string))
- return (zfs_error(hdl, EZFS_TAGTOOLONG, tag));
- zc.zc_cookie = recursive;
- zc.zc_temphold = temphold;
- zc.zc_cleanup_fd = cleanup_fd;
- zc.zc_sendobj = dsobj;
- zc.zc_createtxg = createtxg;
+ if (ret == 0) {
+ /* There may be errors even in the success case. */
+ fnvlist_free(errors);
+ return (0);
+ }
- if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) {
- char errbuf[ZFS_MAXNAMELEN+32];
+ 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);
+ }
+ }
- /*
- * if it was recursive, the one that actually failed will be in
- * zc.zc_name.
- */
- (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
- "cannot hold '%s@%s'"), zc.zc_name, snapname);
- switch (errno) {
+ 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
* above, it's still possible for the tag to wind
* up being slightly too long.
*/
- return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf));
- case ENOTSUP:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "pool must be upgraded"));
- return (zfs_error(hdl, EZFS_BADVERSION, errbuf));
+ (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf);
+ break;
case EINVAL:
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
+ (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
+ break;
case EEXIST:
- return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf));
- case ENOENT:
- if (enoent_ok)
- return (ENOENT);
- /* FALLTHROUGH */
+ (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf);
+ break;
default:
- return (zfs_standard_error_fmt(hdl, errno, errbuf));
+ (void) zfs_standard_error(hdl,
+ fnvpair_value_int32(elem), errbuf);
}
}
- return (0);
+ 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;
+
+ if (snprintf(name, sizeof (name), "%s@%s", zhp->zfs_name,
+ ha->snapname) >= sizeof (name)) {
+ ha->error = EINVAL;
+ rv = EINVAL;
+ }
+
+ 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)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ int ret;
+ struct holdarg ha;
+ nvlist_t *errors = NULL;
+ nvpair_t *elem;
libzfs_handle_t *hdl = zhp->zfs_hdl;
+ char errbuf[1024];
- (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value));
- if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string))
- >= sizeof (zc.zc_string))
- return (zfs_error(hdl, EZFS_TAGTOOLONG, tag));
- zc.zc_cookie = recursive;
+ 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);
+ }
- if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) {
- char errbuf[ZFS_MAXNAMELEN+32];
+ ret = lzc_release(ha.nvl, &errors);
+ fnvlist_free(ha.nvl);
- /*
- * if it was recursive, the one that actually failed will be in
- * zc.zc_name.
- */
+ 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 '%s' from '%s@%s'"), tag, zc.zc_name,
- snapname);
+ "cannot release"));
switch (errno) {
- case ESRCH:
- return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf));
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded"));
- return (zfs_error(hdl, EZFS_BADVERSION, errbuf));
+ (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:
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
+ (void) zfs_error(hdl, EZFS_BADTYPE, errbuf);
+ break;
default:
- return (zfs_standard_error_fmt(hdl, errno, errbuf));
+ (void) zfs_standard_error_fmt(hdl,
+ fnvpair_value_int32(elem), errbuf);
}
}
- return (0);
+ fnvlist_free(errors);
+ return (ret);
}
int
zfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
libzfs_handle_t *hdl = zhp->zfs_hdl;
int nvsz = 2048;
void *nvbuf;
int err = 0;
- char errbuf[ZFS_MAXNAMELEN+32];
+ char errbuf[1024];
assert(zhp->zfs_type == ZFS_TYPE_VOLUME ||
zhp->zfs_type == ZFS_TYPE_FILESYSTEM);
zc.zc_nvlist_dst_size = nvsz;
zc.zc_nvlist_dst = (uintptr_t)nvbuf;
- (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN);
+ (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
- if (zfs_ioctl(hdl, ZFS_IOC_GET_FSACL, &zc) != 0) {
+ 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);
int
zfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
+ zfs_cmd_t zc = {"\0"};
libzfs_handle_t *hdl = zhp->zfs_hdl;
char *nvbuf;
- char errbuf[ZFS_MAXNAMELEN+32];
+ char errbuf[1024];
size_t nvsz;
int err;
int
zfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl)
{
- zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 };
- libzfs_handle_t *hdl = zhp->zfs_hdl;
- int nvsz = 2048;
- void *nvbuf;
- int err = 0;
- char errbuf[ZFS_MAXNAMELEN+32];
-
- assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
-
-tryagain:
-
- nvbuf = malloc(nvsz);
- if (nvbuf == NULL) {
- err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno)));
- goto out;
- }
+ int err;
+ char errbuf[1024];
- zc.zc_nvlist_dst_size = nvsz;
- zc.zc_nvlist_dst = (uintptr_t)nvbuf;
+ err = lzc_get_holds(zhp->zfs_name, nvl);
- (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN);
+ if (err != 0) {
+ libzfs_handle_t *hdl = zhp->zfs_hdl;
- if (zfs_ioctl(hdl, ZFS_IOC_GET_HOLDS, &zc) != 0) {
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"),
- zc.zc_name);
- switch (errno) {
- case ENOMEM:
- free(nvbuf);
- nvsz = zc.zc_nvlist_dst_size;
- goto tryagain;
-
+ zhp->zfs_name);
+ switch (err) {
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded"));
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 holds for '%s'"),
- zc.zc_name);
- err = zfs_standard_error_fmt(hdl, rc, errbuf);
- }
}
- free(nvbuf);
-out:
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)
{
projects / mirror_zfs-debian.git / blobdiff