libzfs_dataset.c revision 251646
1168404Spjd/* 2168404Spjd * CDDL HEADER START 3168404Spjd * 4168404Spjd * The contents of this file are subject to the terms of the 5168404Spjd * Common Development and Distribution License (the "License"). 6168404Spjd * You may not use this file except in compliance with the License. 7168404Spjd * 8168404Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9168404Spjd * or http://www.opensolaris.org/os/licensing. 10168404Spjd * See the License for the specific language governing permissions 11168404Spjd * and limitations under the License. 12168404Spjd * 13168404Spjd * When distributing Covered Code, include this CDDL HEADER in each 14168404Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15168404Spjd * If applicable, add the following below this CDDL HEADER, with the 16168404Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17168404Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18168404Spjd * 19168404Spjd * CDDL HEADER END 20168404Spjd */ 21168404Spjd 22168404Spjd/* 23219089Spjd * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24240415Smm * Copyright 2012 Nexenta Systems, Inc. All rights reserved. 25223623Smm * Copyright (c) 2011 by Delphix. All rights reserved. 26236705Smm * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved. 27230438Spjd * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 28226706Spjd * All rights reserved. 29235216Smm * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 30251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 31168404Spjd */ 32168404Spjd 33168404Spjd#include <ctype.h> 34168404Spjd#include <errno.h> 35168404Spjd#include <libintl.h> 36168404Spjd#include <math.h> 37168404Spjd#include <stdio.h> 38168404Spjd#include <stdlib.h> 39168404Spjd#include <strings.h> 40168404Spjd#include <unistd.h> 41185029Spjd#include <stddef.h> 42168404Spjd#include <zone.h> 43168404Spjd#include <fcntl.h> 44168404Spjd#include <sys/mntent.h> 45168404Spjd#include <sys/mount.h> 46185029Spjd#include <priv.h> 47185029Spjd#include <pwd.h> 48185029Spjd#include <grp.h> 49185029Spjd#include <stddef.h> 50209962Smm#include <idmap.h> 51168404Spjd 52219089Spjd#include <sys/dnode.h> 53168404Spjd#include <sys/spa.h> 54168404Spjd#include <sys/zap.h> 55209962Smm#include <sys/misc.h> 56168404Spjd#include <libzfs.h> 57168404Spjd 58168404Spjd#include "zfs_namecheck.h" 59168404Spjd#include "zfs_prop.h" 60168404Spjd#include "libzfs_impl.h" 61185029Spjd#include "zfs_deleg.h" 62168404Spjd 63209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 64209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 65168676Spjd 66168404Spjd/* 67168404Spjd * Given a single type (not a mask of types), return the type in a human 68168404Spjd * readable form. 69168404Spjd */ 70168404Spjdconst char * 71168404Spjdzfs_type_to_name(zfs_type_t type) 72168404Spjd{ 73168404Spjd switch (type) { 74168404Spjd case ZFS_TYPE_FILESYSTEM: 75168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 76168404Spjd case ZFS_TYPE_SNAPSHOT: 77168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 78168404Spjd case ZFS_TYPE_VOLUME: 79168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 80168404Spjd } 81168404Spjd 82168404Spjd return (NULL); 83168404Spjd} 84168404Spjd 85168404Spjd/* 86168404Spjd * Given a path and mask of ZFS types, return a string describing this dataset. 87168404Spjd * This is used when we fail to open a dataset and we cannot get an exact type. 88168404Spjd * We guess what the type would have been based on the path and the mask of 89168404Spjd * acceptable types. 90168404Spjd */ 91168404Spjdstatic const char * 92168404Spjdpath_to_str(const char *path, int types) 93168404Spjd{ 94168404Spjd /* 95168404Spjd * When given a single type, always report the exact type. 96168404Spjd */ 97168404Spjd if (types == ZFS_TYPE_SNAPSHOT) 98168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 99168404Spjd if (types == ZFS_TYPE_FILESYSTEM) 100168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 101168404Spjd if (types == ZFS_TYPE_VOLUME) 102168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 103168404Spjd 104168404Spjd /* 105168404Spjd * The user is requesting more than one type of dataset. If this is the 106168404Spjd * case, consult the path itself. If we're looking for a snapshot, and 107168404Spjd * a '@' is found, then report it as "snapshot". Otherwise, remove the 108168404Spjd * snapshot attribute and try again. 109168404Spjd */ 110168404Spjd if (types & ZFS_TYPE_SNAPSHOT) { 111168404Spjd if (strchr(path, '@') != NULL) 112168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 113168404Spjd return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); 114168404Spjd } 115168404Spjd 116168404Spjd /* 117168404Spjd * The user has requested either filesystems or volumes. 118168404Spjd * We have no way of knowing a priori what type this would be, so always 119168404Spjd * report it as "filesystem" or "volume", our two primitive types. 120168404Spjd */ 121168404Spjd if (types & ZFS_TYPE_FILESYSTEM) 122168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 123168404Spjd 124168404Spjd assert(types & ZFS_TYPE_VOLUME); 125168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 126168404Spjd} 127168404Spjd 128168404Spjd/* 129168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 130209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 131209962Smm * explain exactly why the name was not valid. 132168404Spjd */ 133219089Spjdint 134185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 135185029Spjd boolean_t modifying) 136168404Spjd{ 137168404Spjd namecheck_err_t why; 138168404Spjd char what; 139168404Spjd 140219089Spjd (void) zfs_prop_get_table(); 141168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 142168404Spjd if (hdl != NULL) { 143168404Spjd switch (why) { 144168404Spjd case NAME_ERR_TOOLONG: 145168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 146168404Spjd "name is too long")); 147168404Spjd break; 148168404Spjd 149168404Spjd case NAME_ERR_LEADING_SLASH: 150168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 151168404Spjd "leading slash in name")); 152168404Spjd break; 153168404Spjd 154168404Spjd case NAME_ERR_EMPTY_COMPONENT: 155168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 156168404Spjd "empty component in name")); 157168404Spjd break; 158168404Spjd 159168404Spjd case NAME_ERR_TRAILING_SLASH: 160168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 161168404Spjd "trailing slash in name")); 162168404Spjd break; 163168404Spjd 164168404Spjd case NAME_ERR_INVALCHAR: 165168404Spjd zfs_error_aux(hdl, 166168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 167168404Spjd "'%c' in name"), what); 168168404Spjd break; 169168404Spjd 170168404Spjd case NAME_ERR_MULTIPLE_AT: 171168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 172168404Spjd "multiple '@' delimiters in name")); 173168404Spjd break; 174168404Spjd 175168404Spjd case NAME_ERR_NOLETTER: 176168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 177168404Spjd "pool doesn't begin with a letter")); 178168404Spjd break; 179168404Spjd 180168404Spjd case NAME_ERR_RESERVED: 181168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 182168404Spjd "name is reserved")); 183168404Spjd break; 184168404Spjd 185168404Spjd case NAME_ERR_DISKLIKE: 186168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 187168404Spjd "reserved disk name")); 188168404Spjd break; 189168404Spjd } 190168404Spjd } 191168404Spjd 192168404Spjd return (0); 193168404Spjd } 194168404Spjd 195168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 196168404Spjd if (hdl != NULL) 197168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 198168404Spjd "snapshot delimiter '@' in filesystem name")); 199168404Spjd return (0); 200168404Spjd } 201168404Spjd 202168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 203168404Spjd if (hdl != NULL) 204168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 205168404Spjd "missing '@' delimiter in snapshot name")); 206168404Spjd return (0); 207168404Spjd } 208168404Spjd 209185029Spjd if (modifying && strchr(path, '%') != NULL) { 210185029Spjd if (hdl != NULL) 211185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 212185029Spjd "invalid character %c in name"), '%'); 213185029Spjd return (0); 214185029Spjd } 215185029Spjd 216168404Spjd return (-1); 217168404Spjd} 218168404Spjd 219168404Spjdint 220168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 221168404Spjd{ 222185029Spjd if (type == ZFS_TYPE_POOL) 223185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 224185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 225168404Spjd} 226168404Spjd 227168404Spjd/* 228168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 229168404Spjd * properties into a separate nvlist. 230168404Spjd */ 231185029Spjdstatic nvlist_t * 232185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 233168404Spjd{ 234168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 235168404Spjd nvpair_t *elem; 236168404Spjd nvlist_t *propval; 237185029Spjd nvlist_t *nvl; 238168404Spjd 239185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 240185029Spjd (void) no_memory(hdl); 241185029Spjd return (NULL); 242185029Spjd } 243168404Spjd 244168404Spjd elem = NULL; 245185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 246168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 247168404Spjd continue; 248168404Spjd 249168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 250185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 251185029Spjd nvlist_free(nvl); 252185029Spjd (void) no_memory(hdl); 253185029Spjd return (NULL); 254185029Spjd } 255168404Spjd } 256168404Spjd 257185029Spjd return (nvl); 258168404Spjd} 259168404Spjd 260185029Spjdstatic zpool_handle_t * 261185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 262185029Spjd{ 263185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 264185029Spjd zpool_handle_t *zph; 265185029Spjd 266185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 267185029Spjd if (hdl->libzfs_pool_handles != NULL) 268185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 269185029Spjd hdl->libzfs_pool_handles = zph; 270185029Spjd } 271185029Spjd return (zph); 272185029Spjd} 273185029Spjd 274185029Spjdstatic zpool_handle_t * 275185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 276185029Spjd{ 277185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 278185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 279185029Spjd 280185029Spjd while ((zph != NULL) && 281185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 282185029Spjd zph = zph->zpool_next; 283185029Spjd return (zph); 284185029Spjd} 285185029Spjd 286168404Spjd/* 287185029Spjd * Returns a handle to the pool that contains the provided dataset. 288185029Spjd * If a handle to that pool already exists then that handle is returned. 289185029Spjd * Otherwise, a new handle is created and added to the list of handles. 290185029Spjd */ 291185029Spjdstatic zpool_handle_t * 292185029Spjdzpool_handle(zfs_handle_t *zhp) 293185029Spjd{ 294185029Spjd char *pool_name; 295185029Spjd int len; 296185029Spjd zpool_handle_t *zph; 297185029Spjd 298185029Spjd len = strcspn(zhp->zfs_name, "/@") + 1; 299185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 300185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 301185029Spjd 302185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 303185029Spjd if (zph == NULL) 304185029Spjd zph = zpool_add_handle(zhp, pool_name); 305185029Spjd 306185029Spjd free(pool_name); 307185029Spjd return (zph); 308185029Spjd} 309185029Spjd 310185029Spjdvoid 311185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 312185029Spjd{ 313185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 314185029Spjd 315185029Spjd while (zph != NULL) { 316185029Spjd next = zph->zpool_next; 317185029Spjd zpool_close(zph); 318185029Spjd zph = next; 319185029Spjd } 320185029Spjd hdl->libzfs_pool_handles = NULL; 321185029Spjd} 322185029Spjd 323185029Spjd/* 324168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 325168404Spjd */ 326219089Spjdstatic int 327209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 328168404Spjd{ 329168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 330168404Spjd 331209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 332168404Spjd 333209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 334168404Spjd if (errno == ENOMEM) { 335209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 336168404Spjd return (-1); 337168404Spjd } 338168404Spjd } else { 339168404Spjd return (-1); 340168404Spjd } 341168404Spjd } 342209962Smm return (0); 343209962Smm} 344168404Spjd 345219089Spjd/* 346219089Spjd * Utility function to get the received properties of the given object. 347219089Spjd */ 348209962Smmstatic int 349219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 350219089Spjd{ 351219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 352219089Spjd nvlist_t *recvdprops; 353219089Spjd zfs_cmd_t zc = { 0 }; 354219089Spjd int err; 355219089Spjd 356219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 357219089Spjd return (-1); 358219089Spjd 359219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 360219089Spjd 361219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 362219089Spjd if (errno == ENOMEM) { 363219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 364219089Spjd return (-1); 365219089Spjd } 366219089Spjd } else { 367219089Spjd zcmd_free_nvlists(&zc); 368219089Spjd return (-1); 369219089Spjd } 370219089Spjd } 371219089Spjd 372219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 373219089Spjd zcmd_free_nvlists(&zc); 374219089Spjd if (err != 0) 375219089Spjd return (-1); 376219089Spjd 377219089Spjd nvlist_free(zhp->zfs_recvd_props); 378219089Spjd zhp->zfs_recvd_props = recvdprops; 379219089Spjd 380219089Spjd return (0); 381219089Spjd} 382219089Spjd 383219089Spjdstatic int 384209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 385209962Smm{ 386209962Smm nvlist_t *allprops, *userprops; 387168404Spjd 388209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 389209962Smm 390209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 391168404Spjd return (-1); 392168404Spjd } 393168404Spjd 394209962Smm /* 395209962Smm * XXX Why do we store the user props separately, in addition to 396209962Smm * storing them in zfs_props? 397209962Smm */ 398185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 399185029Spjd nvlist_free(allprops); 400168404Spjd return (-1); 401185029Spjd } 402168404Spjd 403185029Spjd nvlist_free(zhp->zfs_props); 404185029Spjd nvlist_free(zhp->zfs_user_props); 405185029Spjd 406185029Spjd zhp->zfs_props = allprops; 407185029Spjd zhp->zfs_user_props = userprops; 408185029Spjd 409168404Spjd return (0); 410168404Spjd} 411168404Spjd 412209962Smmstatic int 413209962Smmget_stats(zfs_handle_t *zhp) 414209962Smm{ 415209962Smm int rc = 0; 416209962Smm zfs_cmd_t zc = { 0 }; 417209962Smm 418209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 419209962Smm return (-1); 420209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 421209962Smm rc = -1; 422209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 423209962Smm rc = -1; 424209962Smm zcmd_free_nvlists(&zc); 425209962Smm return (rc); 426209962Smm} 427209962Smm 428168404Spjd/* 429168404Spjd * Refresh the properties currently stored in the handle. 430168404Spjd */ 431168404Spjdvoid 432168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 433168404Spjd{ 434168404Spjd (void) get_stats(zhp); 435168404Spjd} 436168404Spjd 437168404Spjd/* 438168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 439168404Spjd * zfs_iter_* to create child handles on the fly. 440168404Spjd */ 441209962Smmstatic int 442209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 443168404Spjd{ 444219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 445209962Smm return (-1); 446168404Spjd 447168404Spjd /* 448168404Spjd * We've managed to open the dataset and gather statistics. Determine 449168404Spjd * the high-level type. 450168404Spjd */ 451168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 452168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 453168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 454168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 455168404Spjd else 456168404Spjd abort(); 457168404Spjd 458168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 459168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 460168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 461168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 462168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 463168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 464168404Spjd else 465168404Spjd abort(); /* we should never see any other types */ 466168404Spjd 467219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 468219089Spjd return (-1); 469219089Spjd 470209962Smm return (0); 471209962Smm} 472209962Smm 473209962Smmzfs_handle_t * 474209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 475209962Smm{ 476209962Smm zfs_cmd_t zc = { 0 }; 477209962Smm 478209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 479209962Smm 480209962Smm if (zhp == NULL) 481209962Smm return (NULL); 482209962Smm 483209962Smm zhp->zfs_hdl = hdl; 484209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 485209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 486209962Smm free(zhp); 487209962Smm return (NULL); 488209962Smm } 489209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 490209962Smm zcmd_free_nvlists(&zc); 491209962Smm free(zhp); 492209962Smm return (NULL); 493209962Smm } 494209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 495209962Smm free(zhp); 496209962Smm zhp = NULL; 497209962Smm } 498209962Smm zcmd_free_nvlists(&zc); 499168404Spjd return (zhp); 500168404Spjd} 501168404Spjd 502228103Smmzfs_handle_t * 503209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 504209962Smm{ 505209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 506209962Smm 507209962Smm if (zhp == NULL) 508209962Smm return (NULL); 509209962Smm 510209962Smm zhp->zfs_hdl = hdl; 511209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 512209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 513209962Smm free(zhp); 514209962Smm return (NULL); 515209962Smm } 516209962Smm return (zhp); 517209962Smm} 518209962Smm 519228103Smmzfs_handle_t * 520230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 521230438Spjd{ 522230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 523230438Spjd 524230438Spjd if (zhp == NULL) 525230438Spjd return (NULL); 526230438Spjd 527230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 528230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 529230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 530230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 531230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 532230438Spjd return (zhp); 533230438Spjd} 534230438Spjd 535230438Spjdzfs_handle_t * 536228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 537228103Smm{ 538228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 539228103Smm 540228103Smm if (zhp == NULL) 541228103Smm return (NULL); 542228103Smm 543228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 544228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 545228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 546228103Smm sizeof (zhp->zfs_name)); 547228103Smm zhp->zfs_type = zhp_orig->zfs_type; 548228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 549228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 550228103Smm if (zhp_orig->zfs_props != NULL) { 551228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 552228103Smm (void) no_memory(zhp->zfs_hdl); 553228103Smm zfs_close(zhp); 554228103Smm return (NULL); 555228103Smm } 556228103Smm } 557228103Smm if (zhp_orig->zfs_user_props != NULL) { 558228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 559228103Smm &zhp->zfs_user_props, 0) != 0) { 560228103Smm (void) no_memory(zhp->zfs_hdl); 561228103Smm zfs_close(zhp); 562228103Smm return (NULL); 563228103Smm } 564228103Smm } 565228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 566228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 567228103Smm &zhp->zfs_recvd_props, 0)) { 568228103Smm (void) no_memory(zhp->zfs_hdl); 569228103Smm zfs_close(zhp); 570228103Smm return (NULL); 571228103Smm } 572228103Smm } 573228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 574228103Smm if (zhp_orig->zfs_mntopts != NULL) { 575228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 576228103Smm zhp_orig->zfs_mntopts); 577228103Smm } 578228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 579228103Smm return (zhp); 580228103Smm} 581228103Smm 582168404Spjd/* 583168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 584168404Spjd * argument is a mask of acceptable types. The function will print an 585168404Spjd * appropriate error message and return NULL if it can't be opened. 586168404Spjd */ 587168404Spjdzfs_handle_t * 588168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 589168404Spjd{ 590168404Spjd zfs_handle_t *zhp; 591168404Spjd char errbuf[1024]; 592168404Spjd 593168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 594168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 595168404Spjd 596168404Spjd /* 597168404Spjd * Validate the name before we even try to open it. 598168404Spjd */ 599185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 600168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 601168404Spjd "invalid dataset name")); 602168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 603168404Spjd return (NULL); 604168404Spjd } 605168404Spjd 606168404Spjd /* 607168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 608168404Spjd */ 609168404Spjd errno = 0; 610168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 611168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 612168404Spjd return (NULL); 613168404Spjd } 614168404Spjd 615240870Spjd if (zhp == NULL) { 616240870Spjd char *at = strchr(path, '@'); 617240870Spjd 618240870Spjd if (at != NULL) 619240870Spjd *at = '\0'; 620240870Spjd errno = 0; 621240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 622240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 623240870Spjd return (NULL); 624240870Spjd } 625240870Spjd if (at != NULL) 626240870Spjd *at = '@'; 627240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 628240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 629240870Spjd } 630240870Spjd 631168404Spjd if (!(types & zhp->zfs_type)) { 632168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 633168404Spjd zfs_close(zhp); 634168404Spjd return (NULL); 635168404Spjd } 636168404Spjd 637168404Spjd return (zhp); 638168404Spjd} 639168404Spjd 640168404Spjd/* 641168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 642168404Spjd */ 643168404Spjdvoid 644168404Spjdzfs_close(zfs_handle_t *zhp) 645168404Spjd{ 646168404Spjd if (zhp->zfs_mntopts) 647168404Spjd free(zhp->zfs_mntopts); 648168404Spjd nvlist_free(zhp->zfs_props); 649168404Spjd nvlist_free(zhp->zfs_user_props); 650219089Spjd nvlist_free(zhp->zfs_recvd_props); 651168404Spjd free(zhp); 652168404Spjd} 653168404Spjd 654209962Smmtypedef struct mnttab_node { 655209962Smm struct mnttab mtn_mt; 656209962Smm avl_node_t mtn_node; 657209962Smm} mnttab_node_t; 658209962Smm 659209962Smmstatic int 660209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 661209962Smm{ 662209962Smm const mnttab_node_t *mtn1 = arg1; 663209962Smm const mnttab_node_t *mtn2 = arg2; 664209962Smm int rv; 665209962Smm 666209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 667209962Smm 668209962Smm if (rv == 0) 669209962Smm return (0); 670209962Smm return (rv > 0 ? 1 : -1); 671209962Smm} 672209962Smm 673209962Smmvoid 674209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 675209962Smm{ 676209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 677209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 678209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 679209962Smm} 680209962Smm 681209962Smmvoid 682209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 683209962Smm{ 684209962Smm struct mnttab entry; 685209962Smm 686209962Smm rewind(hdl->libzfs_mnttab); 687209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 688209962Smm mnttab_node_t *mtn; 689209962Smm 690209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 691209962Smm continue; 692209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 693209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 694209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 695209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 696209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 697209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 698209962Smm } 699209962Smm} 700209962Smm 701209962Smmvoid 702209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 703209962Smm{ 704209962Smm void *cookie = NULL; 705209962Smm mnttab_node_t *mtn; 706209962Smm 707209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 708209962Smm free(mtn->mtn_mt.mnt_special); 709209962Smm free(mtn->mtn_mt.mnt_mountp); 710209962Smm free(mtn->mtn_mt.mnt_fstype); 711209962Smm free(mtn->mtn_mt.mnt_mntopts); 712209962Smm free(mtn); 713209962Smm } 714209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 715209962Smm} 716209962Smm 717209962Smmvoid 718209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 719209962Smm{ 720209962Smm hdl->libzfs_mnttab_enable = enable; 721209962Smm} 722209962Smm 723185029Spjdint 724209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 725209962Smm struct mnttab *entry) 726209962Smm{ 727209962Smm mnttab_node_t find; 728209962Smm mnttab_node_t *mtn; 729209962Smm 730209962Smm if (!hdl->libzfs_mnttab_enable) { 731209962Smm struct mnttab srch = { 0 }; 732209962Smm 733209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 734209962Smm libzfs_mnttab_fini(hdl); 735209962Smm rewind(hdl->libzfs_mnttab); 736209962Smm srch.mnt_special = (char *)fsname; 737209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 738209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 739209962Smm return (0); 740209962Smm else 741209962Smm return (ENOENT); 742209962Smm } 743209962Smm 744209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 745209962Smm libzfs_mnttab_update(hdl); 746209962Smm 747209962Smm find.mtn_mt.mnt_special = (char *)fsname; 748209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 749209962Smm if (mtn) { 750209962Smm *entry = mtn->mtn_mt; 751209962Smm return (0); 752209962Smm } 753209962Smm return (ENOENT); 754209962Smm} 755209962Smm 756209962Smmvoid 757209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 758209962Smm const char *mountp, const char *mntopts) 759209962Smm{ 760209962Smm mnttab_node_t *mtn; 761209962Smm 762209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 763209962Smm return; 764209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 765209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 766209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 767209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 768209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 769209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 770209962Smm} 771209962Smm 772209962Smmvoid 773209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 774209962Smm{ 775209962Smm mnttab_node_t find; 776209962Smm mnttab_node_t *ret; 777209962Smm 778209962Smm find.mtn_mt.mnt_special = (char *)fsname; 779209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 780209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 781209962Smm free(ret->mtn_mt.mnt_special); 782209962Smm free(ret->mtn_mt.mnt_mountp); 783209962Smm free(ret->mtn_mt.mnt_fstype); 784209962Smm free(ret->mtn_mt.mnt_mntopts); 785209962Smm free(ret); 786209962Smm } 787209962Smm} 788209962Smm 789209962Smmint 790185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 791168404Spjd{ 792185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 793168404Spjd 794185029Spjd if (zpool_handle == NULL) 795168404Spjd return (-1); 796168404Spjd 797185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 798185029Spjd ZPOOL_PROP_VERSION, NULL); 799168404Spjd return (0); 800168404Spjd} 801168404Spjd 802168404Spjd/* 803185029Spjd * The choice of reservation property depends on the SPA version. 804168404Spjd */ 805168404Spjdstatic int 806185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 807168404Spjd{ 808185029Spjd int spa_version; 809168404Spjd 810185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 811168404Spjd return (-1); 812168404Spjd 813185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 814185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 815185029Spjd else 816185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 817168404Spjd 818168404Spjd return (0); 819168404Spjd} 820168404Spjd 821168404Spjd/* 822168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 823168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 824168404Spjd * strings. 825168404Spjd */ 826168404Spjdnvlist_t * 827185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 828185029Spjd uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) 829168404Spjd{ 830168404Spjd nvpair_t *elem; 831168404Spjd uint64_t intval; 832168404Spjd char *strval; 833185029Spjd zfs_prop_t prop; 834168404Spjd nvlist_t *ret; 835185029Spjd int chosen_normal = -1; 836185029Spjd int chosen_utf = -1; 837168404Spjd 838168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 839168404Spjd (void) no_memory(hdl); 840168404Spjd return (NULL); 841168404Spjd } 842168404Spjd 843209962Smm /* 844209962Smm * Make sure this property is valid and applies to this type. 845209962Smm */ 846209962Smm 847168404Spjd elem = NULL; 848168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 849185029Spjd const char *propname = nvpair_name(elem); 850168404Spjd 851209962Smm prop = zfs_name_to_prop(propname); 852209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 853185029Spjd /* 854209962Smm * This is a user property: make sure it's a 855185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 856185029Spjd */ 857185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 858185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 859185029Spjd "'%s' must be a string"), propname); 860185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 861185029Spjd goto error; 862168404Spjd } 863168404Spjd 864185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 865185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 866185029Spjd "property name '%s' is too long"), 867185029Spjd propname); 868185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 869185029Spjd goto error; 870185029Spjd } 871185029Spjd 872168404Spjd (void) nvpair_value_string(elem, &strval); 873168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 874168404Spjd (void) no_memory(hdl); 875168404Spjd goto error; 876168404Spjd } 877168404Spjd continue; 878168404Spjd } 879168404Spjd 880209962Smm /* 881209962Smm * Currently, only user properties can be modified on 882209962Smm * snapshots. 883209962Smm */ 884185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 885185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 886185029Spjd "this property can not be modified for snapshots")); 887185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 888185029Spjd goto error; 889185029Spjd } 890168404Spjd 891209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 892209962Smm zfs_userquota_prop_t uqtype; 893209962Smm char newpropname[128]; 894209962Smm char domain[128]; 895209962Smm uint64_t rid; 896209962Smm uint64_t valary[3]; 897209962Smm 898209962Smm if (userquota_propname_decode(propname, zoned, 899209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 900209962Smm zfs_error_aux(hdl, 901209962Smm dgettext(TEXT_DOMAIN, 902209962Smm "'%s' has an invalid user/group name"), 903209962Smm propname); 904209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 905209962Smm goto error; 906209962Smm } 907209962Smm 908209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 909209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 910209962Smm zfs_error_aux(hdl, 911209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 912209962Smm propname); 913209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 914209962Smm errbuf); 915209962Smm goto error; 916209962Smm } 917209962Smm 918209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 919209962Smm (void) nvpair_value_string(elem, &strval); 920209962Smm if (strcmp(strval, "none") == 0) { 921209962Smm intval = 0; 922209962Smm } else if (zfs_nicestrtonum(hdl, 923209962Smm strval, &intval) != 0) { 924209962Smm (void) zfs_error(hdl, 925209962Smm EZFS_BADPROP, errbuf); 926209962Smm goto error; 927209962Smm } 928209962Smm } else if (nvpair_type(elem) == 929209962Smm DATA_TYPE_UINT64) { 930209962Smm (void) nvpair_value_uint64(elem, &intval); 931209962Smm if (intval == 0) { 932209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 933209962Smm "use 'none' to disable " 934209962Smm "userquota/groupquota")); 935209962Smm goto error; 936209962Smm } 937209962Smm } else { 938209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 939209962Smm "'%s' must be a number"), propname); 940209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 941209962Smm goto error; 942209962Smm } 943209962Smm 944219089Spjd /* 945219089Spjd * Encode the prop name as 946219089Spjd * userquota@<hex-rid>-domain, to make it easy 947219089Spjd * for the kernel to decode. 948219089Spjd */ 949209962Smm (void) snprintf(newpropname, sizeof (newpropname), 950219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 951219089Spjd (longlong_t)rid, domain); 952209962Smm valary[0] = uqtype; 953209962Smm valary[1] = rid; 954209962Smm valary[2] = intval; 955209962Smm if (nvlist_add_uint64_array(ret, newpropname, 956209962Smm valary, 3) != 0) { 957209962Smm (void) no_memory(hdl); 958209962Smm goto error; 959209962Smm } 960209962Smm continue; 961228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 962228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 963228103Smm "'%s' is readonly"), 964228103Smm propname); 965228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 966228103Smm goto error; 967209962Smm } 968209962Smm 969209962Smm if (prop == ZPROP_INVAL) { 970209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 971209962Smm "invalid property '%s'"), propname); 972209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 973209962Smm goto error; 974209962Smm } 975209962Smm 976168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 977168404Spjd zfs_error_aux(hdl, 978168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 979168404Spjd "apply to datasets of this type"), propname); 980168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 981168404Spjd goto error; 982168404Spjd } 983168404Spjd 984168404Spjd if (zfs_prop_readonly(prop) && 985185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 986168404Spjd zfs_error_aux(hdl, 987168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 988168404Spjd propname); 989168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 990168404Spjd goto error; 991168404Spjd } 992168404Spjd 993185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 994185029Spjd &strval, &intval, errbuf) != 0) 995185029Spjd goto error; 996185029Spjd 997168404Spjd /* 998185029Spjd * Perform some additional checks for specific properties. 999168404Spjd */ 1000185029Spjd switch (prop) { 1001185029Spjd case ZFS_PROP_VERSION: 1002185029Spjd { 1003185029Spjd int version; 1004168404Spjd 1005185029Spjd if (zhp == NULL) 1006185029Spjd break; 1007185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1008185029Spjd if (intval < version) { 1009168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1010185029Spjd "Can not downgrade; already at version %u"), 1011185029Spjd version); 1012168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1013168404Spjd goto error; 1014168404Spjd } 1015168404Spjd break; 1016168404Spjd } 1017168404Spjd 1018168404Spjd case ZFS_PROP_RECORDSIZE: 1019168404Spjd case ZFS_PROP_VOLBLOCKSIZE: 1020168404Spjd /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ 1021168404Spjd if (intval < SPA_MINBLOCKSIZE || 1022168404Spjd intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { 1023168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1024168404Spjd "'%s' must be power of 2 from %u " 1025168404Spjd "to %uk"), propname, 1026168404Spjd (uint_t)SPA_MINBLOCKSIZE, 1027168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 1028168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1029168404Spjd goto error; 1030168404Spjd } 1031168404Spjd break; 1032168404Spjd 1033219089Spjd case ZFS_PROP_MLSLABEL: 1034219089Spjd { 1035219089Spjd#ifdef sun 1036219089Spjd /* 1037219089Spjd * Verify the mlslabel string and convert to 1038219089Spjd * internal hex label string. 1039219089Spjd */ 1040219089Spjd 1041219089Spjd m_label_t *new_sl; 1042219089Spjd char *hex = NULL; /* internal label string */ 1043219089Spjd 1044219089Spjd /* Default value is already OK. */ 1045219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1046219089Spjd break; 1047219089Spjd 1048219089Spjd /* Verify the label can be converted to binary form */ 1049219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1050219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1051219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1052219089Spjd goto badlabel; 1053168404Spjd } 1054168404Spjd 1055219089Spjd /* Now translate to hex internal label string */ 1056219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1057219089Spjd DEF_NAMES) != 0) { 1058219089Spjd if (hex) 1059219089Spjd free(hex); 1060219089Spjd goto badlabel; 1061219089Spjd } 1062219089Spjd m_label_free(new_sl); 1063219089Spjd 1064219089Spjd /* If string is already in internal form, we're done. */ 1065219089Spjd if (strcmp(strval, hex) == 0) { 1066219089Spjd free(hex); 1067219089Spjd break; 1068219089Spjd } 1069219089Spjd 1070219089Spjd /* Replace the label string with the internal form. */ 1071219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1072219089Spjd DATA_TYPE_STRING); 1073219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1074219089Spjd hex) == 0); 1075219089Spjd free(hex); 1076219089Spjd 1077168404Spjd break; 1078168404Spjd 1079219089Spjdbadlabel: 1080219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1081219089Spjd "invalid mlslabel '%s'"), strval); 1082219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1083219089Spjd m_label_free(new_sl); /* OK if null */ 1084219089Spjd#else /* !sun */ 1085219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1086219089Spjd "mlslabel is not supported on FreeBSD")); 1087219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1088219089Spjd#endif /* !sun */ 1089219089Spjd goto error; 1090219089Spjd 1091219089Spjd } 1092219089Spjd 1093168404Spjd case ZFS_PROP_MOUNTPOINT: 1094185029Spjd { 1095185029Spjd namecheck_err_t why; 1096185029Spjd 1097168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1098168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1099168404Spjd break; 1100168404Spjd 1101185029Spjd if (mountpoint_namecheck(strval, &why)) { 1102185029Spjd switch (why) { 1103185029Spjd case NAME_ERR_LEADING_SLASH: 1104185029Spjd zfs_error_aux(hdl, 1105185029Spjd dgettext(TEXT_DOMAIN, 1106185029Spjd "'%s' must be an absolute path, " 1107185029Spjd "'none', or 'legacy'"), propname); 1108185029Spjd break; 1109185029Spjd case NAME_ERR_TOOLONG: 1110185029Spjd zfs_error_aux(hdl, 1111185029Spjd dgettext(TEXT_DOMAIN, 1112185029Spjd "component of '%s' is too long"), 1113185029Spjd propname); 1114185029Spjd break; 1115185029Spjd } 1116168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1117168404Spjd goto error; 1118168404Spjd } 1119185029Spjd } 1120185029Spjd 1121168404Spjd /*FALLTHRU*/ 1122168404Spjd 1123185029Spjd case ZFS_PROP_SHARESMB: 1124168404Spjd case ZFS_PROP_SHARENFS: 1125168404Spjd /* 1126185029Spjd * For the mountpoint and sharenfs or sharesmb 1127185029Spjd * properties, check if it can be set in a 1128185029Spjd * global/non-global zone based on 1129168404Spjd * the zoned property value: 1130168404Spjd * 1131168404Spjd * global zone non-global zone 1132168404Spjd * -------------------------------------------------- 1133168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1134168404Spjd * sharenfs (no) sharenfs (no) 1135185029Spjd * sharesmb (no) sharesmb (no) 1136168404Spjd * 1137168404Spjd * zoned=off mountpoint (yes) N/A 1138168404Spjd * sharenfs (yes) 1139185029Spjd * sharesmb (yes) 1140168404Spjd */ 1141168404Spjd if (zoned) { 1142168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1143168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1144168404Spjd "'%s' cannot be set on " 1145168404Spjd "dataset in a non-global zone"), 1146168404Spjd propname); 1147168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1148168404Spjd errbuf); 1149168404Spjd goto error; 1150185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1151185029Spjd prop == ZFS_PROP_SHARESMB) { 1152168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1153168404Spjd "'%s' cannot be set in " 1154168404Spjd "a non-global zone"), propname); 1155168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1156168404Spjd errbuf); 1157168404Spjd goto error; 1158168404Spjd } 1159168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1160168404Spjd /* 1161168404Spjd * If zoned property is 'off', this must be in 1162209962Smm * a global zone. If not, something is wrong. 1163168404Spjd */ 1164168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1165168404Spjd "'%s' cannot be set while dataset " 1166168404Spjd "'zoned' property is set"), propname); 1167168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1168168404Spjd goto error; 1169168404Spjd } 1170168404Spjd 1171168404Spjd /* 1172185029Spjd * At this point, it is legitimate to set the 1173185029Spjd * property. Now we want to make sure that the 1174185029Spjd * property value is valid if it is sharenfs. 1175168404Spjd */ 1176185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1177185029Spjd prop == ZFS_PROP_SHARESMB) && 1178185029Spjd strcmp(strval, "on") != 0 && 1179185029Spjd strcmp(strval, "off") != 0) { 1180185029Spjd zfs_share_proto_t proto; 1181168404Spjd 1182185029Spjd if (prop == ZFS_PROP_SHARESMB) 1183185029Spjd proto = PROTO_SMB; 1184185029Spjd else 1185185029Spjd proto = PROTO_NFS; 1186185029Spjd 1187185029Spjd /* 1188185029Spjd * Must be an valid sharing protocol 1189185029Spjd * option string so init the libshare 1190185029Spjd * in order to enable the parser and 1191185029Spjd * then parse the options. We use the 1192185029Spjd * control API since we don't care about 1193185029Spjd * the current configuration and don't 1194185029Spjd * want the overhead of loading it 1195185029Spjd * until we actually do something. 1196185029Spjd */ 1197185029Spjd 1198185029Spjd if (zfs_init_libshare(hdl, 1199185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1200185029Spjd /* 1201185029Spjd * An error occurred so we can't do 1202185029Spjd * anything 1203185029Spjd */ 1204185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1205185029Spjd "'%s' cannot be set: problem " 1206185029Spjd "in share initialization"), 1207185029Spjd propname); 1208185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1209185029Spjd errbuf); 1210185029Spjd goto error; 1211185029Spjd } 1212185029Spjd 1213185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1214185029Spjd /* 1215185029Spjd * There was an error in parsing so 1216185029Spjd * deal with it by issuing an error 1217185029Spjd * message and leaving after 1218185029Spjd * uninitializing the the libshare 1219185029Spjd * interface. 1220185029Spjd */ 1221185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1222185029Spjd "'%s' cannot be set to invalid " 1223185029Spjd "options"), propname); 1224185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1225185029Spjd errbuf); 1226185029Spjd zfs_uninit_libshare(hdl); 1227185029Spjd goto error; 1228185029Spjd } 1229185029Spjd zfs_uninit_libshare(hdl); 1230168404Spjd } 1231185029Spjd 1232168404Spjd break; 1233185029Spjd case ZFS_PROP_UTF8ONLY: 1234185029Spjd chosen_utf = (int)intval; 1235185029Spjd break; 1236185029Spjd case ZFS_PROP_NORMALIZE: 1237185029Spjd chosen_normal = (int)intval; 1238185029Spjd break; 1239168404Spjd } 1240168404Spjd 1241168404Spjd /* 1242168404Spjd * For changes to existing volumes, we have some additional 1243168404Spjd * checks to enforce. 1244168404Spjd */ 1245168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1246168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1247168404Spjd ZFS_PROP_VOLSIZE); 1248168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1249168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1250168404Spjd char buf[64]; 1251168404Spjd 1252168404Spjd switch (prop) { 1253168404Spjd case ZFS_PROP_RESERVATION: 1254185029Spjd case ZFS_PROP_REFRESERVATION: 1255168404Spjd if (intval > volsize) { 1256168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1257168404Spjd "'%s' is greater than current " 1258168404Spjd "volume size"), propname); 1259168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1260168404Spjd errbuf); 1261168404Spjd goto error; 1262168404Spjd } 1263168404Spjd break; 1264168404Spjd 1265168404Spjd case ZFS_PROP_VOLSIZE: 1266168404Spjd if (intval % blocksize != 0) { 1267168404Spjd zfs_nicenum(blocksize, buf, 1268168404Spjd sizeof (buf)); 1269168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1270168404Spjd "'%s' must be a multiple of " 1271168404Spjd "volume block size (%s)"), 1272168404Spjd propname, buf); 1273168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1274168404Spjd errbuf); 1275168404Spjd goto error; 1276168404Spjd } 1277168404Spjd 1278168404Spjd if (intval == 0) { 1279168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1280168404Spjd "'%s' cannot be zero"), 1281168404Spjd propname); 1282168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1283168404Spjd errbuf); 1284168404Spjd goto error; 1285168404Spjd } 1286168404Spjd break; 1287168404Spjd } 1288168404Spjd } 1289168404Spjd } 1290168404Spjd 1291168404Spjd /* 1292185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1293185029Spjd * enforce rejection of non-UTF8 names. 1294185029Spjd * 1295185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1296185029Spjd * was explicitly not chosen, it is an error. 1297185029Spjd */ 1298185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1299185029Spjd if (nvlist_add_uint64(ret, 1300185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1301185029Spjd (void) no_memory(hdl); 1302185029Spjd goto error; 1303185029Spjd } 1304185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1305185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1306185029Spjd "'%s' must be set 'on' if normalization chosen"), 1307185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1308185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1309185029Spjd goto error; 1310185029Spjd } 1311219089Spjd return (ret); 1312185029Spjd 1313219089Spjderror: 1314219089Spjd nvlist_free(ret); 1315219089Spjd return (NULL); 1316219089Spjd} 1317219089Spjd 1318219089Spjdint 1319219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1320219089Spjd{ 1321219089Spjd uint64_t old_volsize; 1322219089Spjd uint64_t new_volsize; 1323219089Spjd uint64_t old_reservation; 1324219089Spjd uint64_t new_reservation; 1325219089Spjd zfs_prop_t resv_prop; 1326219089Spjd 1327185029Spjd /* 1328168404Spjd * If this is an existing volume, and someone is setting the volsize, 1329168404Spjd * make sure that it matches the reservation, or add it if necessary. 1330168404Spjd */ 1331219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1332219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1333219089Spjd return (-1); 1334219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1335219089Spjd if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != 1336219089Spjd old_reservation) || nvlist_lookup_uint64(nvl, 1337219089Spjd zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { 1338219089Spjd return (0); 1339219089Spjd } 1340219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1341219089Spjd &new_volsize) != 0) 1342219089Spjd return (-1); 1343219089Spjd new_reservation = zvol_volsize_to_reservation(new_volsize, 1344219089Spjd zhp->zfs_props); 1345219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1346219089Spjd new_reservation) != 0) { 1347219089Spjd (void) no_memory(zhp->zfs_hdl); 1348219089Spjd return (-1); 1349219089Spjd } 1350219089Spjd return (1); 1351219089Spjd} 1352168404Spjd 1353219089Spjdvoid 1354219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1355219089Spjd char *errbuf) 1356219089Spjd{ 1357219089Spjd switch (err) { 1358185029Spjd 1359219089Spjd case ENOSPC: 1360219089Spjd /* 1361219089Spjd * For quotas and reservations, ENOSPC indicates 1362219089Spjd * something different; setting a quota or reservation 1363219089Spjd * doesn't use any disk space. 1364219089Spjd */ 1365219089Spjd switch (prop) { 1366219089Spjd case ZFS_PROP_QUOTA: 1367219089Spjd case ZFS_PROP_REFQUOTA: 1368219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1369219089Spjd "size is less than current used or " 1370219089Spjd "reserved space")); 1371219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1372219089Spjd break; 1373219089Spjd 1374219089Spjd case ZFS_PROP_RESERVATION: 1375219089Spjd case ZFS_PROP_REFRESERVATION: 1376219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1377219089Spjd "size is greater than available space")); 1378219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1379219089Spjd break; 1380219089Spjd 1381219089Spjd default: 1382219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1383219089Spjd break; 1384168404Spjd } 1385219089Spjd break; 1386219089Spjd 1387219089Spjd case EBUSY: 1388219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1389219089Spjd break; 1390219089Spjd 1391219089Spjd case EROFS: 1392219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1393219089Spjd break; 1394219089Spjd 1395219089Spjd case ENOTSUP: 1396219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1397219089Spjd "pool and or dataset must be upgraded to set this " 1398219089Spjd "property or value")); 1399219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1400219089Spjd break; 1401219089Spjd 1402219089Spjd case ERANGE: 1403219089Spjd if (prop == ZFS_PROP_COMPRESSION) { 1404219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1405219089Spjd "property setting is not allowed on " 1406219089Spjd "bootable datasets")); 1407219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1408219089Spjd } else { 1409219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1410219089Spjd } 1411219089Spjd break; 1412219089Spjd 1413219089Spjd case EINVAL: 1414219089Spjd if (prop == ZPROP_INVAL) { 1415219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1416219089Spjd } else { 1417219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1418219089Spjd } 1419219089Spjd break; 1420219089Spjd 1421219089Spjd case EOVERFLOW: 1422219089Spjd /* 1423219089Spjd * This platform can't address a volume this big. 1424219089Spjd */ 1425219089Spjd#ifdef _ILP32 1426219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1427219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1428219089Spjd break; 1429219089Spjd } 1430219089Spjd#endif 1431219089Spjd /* FALLTHROUGH */ 1432219089Spjd default: 1433219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1434168404Spjd } 1435168404Spjd} 1436168404Spjd 1437168404Spjd/* 1438168404Spjd * Given a property name and value, set the property for the given dataset. 1439168404Spjd */ 1440168404Spjdint 1441168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1442168404Spjd{ 1443168404Spjd zfs_cmd_t zc = { 0 }; 1444168404Spjd int ret = -1; 1445168404Spjd prop_changelist_t *cl = NULL; 1446168404Spjd char errbuf[1024]; 1447168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1448168404Spjd nvlist_t *nvl = NULL, *realprops; 1449168404Spjd zfs_prop_t prop; 1450241655Smm boolean_t do_prefix = B_TRUE; 1451219089Spjd int added_resv; 1452168404Spjd 1453168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1454168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1455168404Spjd zhp->zfs_name); 1456168404Spjd 1457168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1458168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1459168404Spjd (void) no_memory(hdl); 1460168404Spjd goto error; 1461168404Spjd } 1462168404Spjd 1463185029Spjd if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, 1464168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) 1465168404Spjd goto error; 1466185029Spjd 1467168404Spjd nvlist_free(nvl); 1468168404Spjd nvl = realprops; 1469168404Spjd 1470168404Spjd prop = zfs_name_to_prop(propname); 1471168404Spjd 1472168404Spjd /* We don't support those properties on FreeBSD. */ 1473168404Spjd switch (prop) { 1474197867Strasz case ZFS_PROP_DEVICES: 1475168404Spjd case ZFS_PROP_ISCSIOPTIONS: 1476197867Strasz case ZFS_PROP_XATTR: 1477197867Strasz case ZFS_PROP_VSCAN: 1478197867Strasz case ZFS_PROP_NBMAND: 1479219089Spjd case ZFS_PROP_MLSLABEL: 1480168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1481168404Spjd "property '%s' not supported on FreeBSD", propname); 1482168404Spjd ret = zfs_error(hdl, EZFS_PERM, errbuf); 1483168404Spjd goto error; 1484168404Spjd } 1485168404Spjd 1486219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1487219089Spjd if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) 1488219089Spjd goto error; 1489219089Spjd } 1490219089Spjd 1491185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1492168404Spjd goto error; 1493168404Spjd 1494168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1495168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1496168404Spjd "child dataset with inherited mountpoint is used " 1497168404Spjd "in a non-global zone")); 1498168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1499168404Spjd goto error; 1500168404Spjd } 1501168404Spjd 1502185029Spjd /* 1503238391Smm * We don't want to unmount & remount the dataset when changing 1504238391Smm * its canmount property to 'on' or 'noauto'. We only use 1505238391Smm * the changelist logic to unmount when setting canmount=off. 1506185029Spjd */ 1507238391Smm if (prop == ZFS_PROP_CANMOUNT) { 1508238391Smm uint64_t idx; 1509238391Smm int err = zprop_string_to_index(prop, propval, &idx, 1510238391Smm ZFS_TYPE_DATASET); 1511238391Smm if (err == 0 && idx != ZFS_CANMOUNT_OFF) 1512238391Smm do_prefix = B_FALSE; 1513238391Smm } 1514185029Spjd 1515185029Spjd if (do_prefix && (ret = changelist_prefix(cl)) != 0) 1516168404Spjd goto error; 1517168404Spjd 1518168404Spjd /* 1519168404Spjd * Execute the corresponding ioctl() to set this property. 1520168404Spjd */ 1521168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1522168404Spjd 1523185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1524168404Spjd goto error; 1525168404Spjd 1526185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1527209962Smm 1528168404Spjd if (ret != 0) { 1529219089Spjd zfs_setprop_error(hdl, prop, errno, errbuf); 1530219089Spjd if (added_resv && errno == ENOSPC) { 1531219089Spjd /* clean up the volsize property we tried to set */ 1532219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1533219089Spjd ZFS_PROP_VOLSIZE); 1534219089Spjd nvlist_free(nvl); 1535219089Spjd zcmd_free_nvlists(&zc); 1536219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1537219089Spjd goto error; 1538219089Spjd if (nvlist_add_uint64(nvl, 1539219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1540219089Spjd old_volsize) != 0) 1541219089Spjd goto error; 1542219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1543219089Spjd goto error; 1544219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1545168404Spjd } 1546168404Spjd } else { 1547185029Spjd if (do_prefix) 1548185029Spjd ret = changelist_postfix(cl); 1549185029Spjd 1550168404Spjd /* 1551168404Spjd * Refresh the statistics so the new property value 1552168404Spjd * is reflected. 1553168404Spjd */ 1554185029Spjd if (ret == 0) 1555168404Spjd (void) get_stats(zhp); 1556168404Spjd } 1557168404Spjd 1558168404Spjderror: 1559168404Spjd nvlist_free(nvl); 1560168404Spjd zcmd_free_nvlists(&zc); 1561168404Spjd if (cl) 1562168404Spjd changelist_free(cl); 1563168404Spjd return (ret); 1564168404Spjd} 1565168404Spjd 1566168404Spjd/* 1567219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1568219089Spjd * is TRUE, revert to the received value, if any. 1569168404Spjd */ 1570168404Spjdint 1571219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1572168404Spjd{ 1573168404Spjd zfs_cmd_t zc = { 0 }; 1574168404Spjd int ret; 1575168404Spjd prop_changelist_t *cl; 1576168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1577168404Spjd char errbuf[1024]; 1578168404Spjd zfs_prop_t prop; 1579168404Spjd 1580168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1581168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1582168404Spjd 1583219089Spjd zc.zc_cookie = received; 1584185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1585168404Spjd /* 1586168404Spjd * For user properties, the amount of work we have to do is very 1587168404Spjd * small, so just do it here. 1588168404Spjd */ 1589168404Spjd if (!zfs_prop_user(propname)) { 1590168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1591168404Spjd "invalid property")); 1592168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1593168404Spjd } 1594168404Spjd 1595168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1596168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1597168404Spjd 1598185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1599168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1600168404Spjd 1601168404Spjd return (0); 1602168404Spjd } 1603168404Spjd 1604168404Spjd /* 1605168404Spjd * Verify that this property is inheritable. 1606168404Spjd */ 1607168404Spjd if (zfs_prop_readonly(prop)) 1608168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1609168404Spjd 1610219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1611168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1612168404Spjd 1613168404Spjd /* 1614168404Spjd * Check to see if the value applies to this type 1615168404Spjd */ 1616168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1617168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1618168404Spjd 1619168404Spjd /* 1620219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1621168404Spjd */ 1622168404Spjd propname = zfs_prop_to_name(prop); 1623168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1624168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1625168404Spjd 1626168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1627168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1628168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1629168404Spjd "dataset is used in a non-global zone")); 1630168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1631168404Spjd } 1632168404Spjd 1633168404Spjd /* 1634168404Spjd * Determine datasets which will be affected by this change, if any. 1635168404Spjd */ 1636185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1637168404Spjd return (-1); 1638168404Spjd 1639168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1640168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1641168404Spjd "child dataset with inherited mountpoint is used " 1642168404Spjd "in a non-global zone")); 1643168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1644168404Spjd goto error; 1645168404Spjd } 1646168404Spjd 1647168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1648168404Spjd goto error; 1649168404Spjd 1650185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1651168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1652168404Spjd } else { 1653168404Spjd 1654168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1655168404Spjd goto error; 1656168404Spjd 1657168404Spjd /* 1658168404Spjd * Refresh the statistics so the new property is reflected. 1659168404Spjd */ 1660168404Spjd (void) get_stats(zhp); 1661168404Spjd } 1662168404Spjd 1663168404Spjderror: 1664168404Spjd changelist_free(cl); 1665168404Spjd return (ret); 1666168404Spjd} 1667168404Spjd 1668168404Spjd/* 1669168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1670168404Spjd * extract them appropriately. 1671168404Spjd */ 1672168404Spjdstatic uint64_t 1673168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1674168404Spjd{ 1675168404Spjd nvlist_t *nv; 1676168404Spjd uint64_t value; 1677168404Spjd 1678168404Spjd *source = NULL; 1679168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1680168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1681185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1682185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1683168404Spjd } else { 1684205198Sdelphij verify(!zhp->zfs_props_table || 1685205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1686168404Spjd value = zfs_prop_default_numeric(prop); 1687168404Spjd *source = ""; 1688168404Spjd } 1689168404Spjd 1690168404Spjd return (value); 1691168404Spjd} 1692168404Spjd 1693168404Spjdstatic char * 1694168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1695168404Spjd{ 1696168404Spjd nvlist_t *nv; 1697168404Spjd char *value; 1698168404Spjd 1699168404Spjd *source = NULL; 1700168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1701168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1702185029Spjd verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); 1703185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1704168404Spjd } else { 1705205198Sdelphij verify(!zhp->zfs_props_table || 1706205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1707168404Spjd if ((value = (char *)zfs_prop_default_string(prop)) == NULL) 1708168404Spjd value = ""; 1709168404Spjd *source = ""; 1710168404Spjd } 1711168404Spjd 1712168404Spjd return (value); 1713168404Spjd} 1714168404Spjd 1715219089Spjdstatic boolean_t 1716219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1717219089Spjd{ 1718219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1719219089Spjd} 1720219089Spjd 1721219089Spjdstatic void 1722219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1723219089Spjd{ 1724219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1725219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1726219089Spjd} 1727219089Spjd 1728219089Spjdstatic void 1729219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1730219089Spjd{ 1731219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1732219089Spjd *cookie = 0; 1733219089Spjd} 1734219089Spjd 1735168404Spjd/* 1736168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1737168404Spjd * zfs_prop_get_int() are built using this interface. 1738168404Spjd * 1739168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1740168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1741168404Spjd * If they differ from the on-disk values, report the current values and mark 1742168404Spjd * the source "temporary". 1743168404Spjd */ 1744168404Spjdstatic int 1745185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1746168404Spjd char **source, uint64_t *val) 1747168404Spjd{ 1748185029Spjd zfs_cmd_t zc = { 0 }; 1749185029Spjd nvlist_t *zplprops = NULL; 1750168404Spjd struct mnttab mnt; 1751168404Spjd char *mntopt_on = NULL; 1752168404Spjd char *mntopt_off = NULL; 1753219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1754168404Spjd 1755168404Spjd *source = NULL; 1756168404Spjd 1757168404Spjd switch (prop) { 1758168404Spjd case ZFS_PROP_ATIME: 1759168404Spjd mntopt_on = MNTOPT_ATIME; 1760168404Spjd mntopt_off = MNTOPT_NOATIME; 1761168404Spjd break; 1762168404Spjd 1763168404Spjd case ZFS_PROP_DEVICES: 1764168404Spjd mntopt_on = MNTOPT_DEVICES; 1765168404Spjd mntopt_off = MNTOPT_NODEVICES; 1766168404Spjd break; 1767168404Spjd 1768168404Spjd case ZFS_PROP_EXEC: 1769168404Spjd mntopt_on = MNTOPT_EXEC; 1770168404Spjd mntopt_off = MNTOPT_NOEXEC; 1771168404Spjd break; 1772168404Spjd 1773168404Spjd case ZFS_PROP_READONLY: 1774168404Spjd mntopt_on = MNTOPT_RO; 1775168404Spjd mntopt_off = MNTOPT_RW; 1776168404Spjd break; 1777168404Spjd 1778168404Spjd case ZFS_PROP_SETUID: 1779168404Spjd mntopt_on = MNTOPT_SETUID; 1780168404Spjd mntopt_off = MNTOPT_NOSETUID; 1781168404Spjd break; 1782168404Spjd 1783168404Spjd case ZFS_PROP_XATTR: 1784168404Spjd mntopt_on = MNTOPT_XATTR; 1785168404Spjd mntopt_off = MNTOPT_NOXATTR; 1786168404Spjd break; 1787185029Spjd 1788185029Spjd case ZFS_PROP_NBMAND: 1789185029Spjd mntopt_on = MNTOPT_NBMAND; 1790185029Spjd mntopt_off = MNTOPT_NONBMAND; 1791185029Spjd break; 1792168404Spjd } 1793168404Spjd 1794168404Spjd /* 1795168404Spjd * Because looking up the mount options is potentially expensive 1796168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1797168404Spjd * we're looking up a property which requires its presence. 1798168404Spjd */ 1799168404Spjd if (!zhp->zfs_mntcheck && 1800168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1801209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1802209962Smm struct mnttab entry; 1803168404Spjd 1804209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1805209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1806168404Spjd entry.mnt_mntopts); 1807168404Spjd if (zhp->zfs_mntopts == NULL) 1808168404Spjd return (-1); 1809168404Spjd } 1810168404Spjd 1811168404Spjd zhp->zfs_mntcheck = B_TRUE; 1812168404Spjd } 1813168404Spjd 1814168404Spjd if (zhp->zfs_mntopts == NULL) 1815168404Spjd mnt.mnt_mntopts = ""; 1816168404Spjd else 1817168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1818168404Spjd 1819168404Spjd switch (prop) { 1820168404Spjd case ZFS_PROP_ATIME: 1821168404Spjd case ZFS_PROP_DEVICES: 1822168404Spjd case ZFS_PROP_EXEC: 1823168404Spjd case ZFS_PROP_READONLY: 1824168404Spjd case ZFS_PROP_SETUID: 1825168404Spjd case ZFS_PROP_XATTR: 1826185029Spjd case ZFS_PROP_NBMAND: 1827168404Spjd *val = getprop_uint64(zhp, prop, source); 1828168404Spjd 1829219089Spjd if (received) 1830219089Spjd break; 1831219089Spjd 1832168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 1833168404Spjd *val = B_TRUE; 1834168404Spjd if (src) 1835185029Spjd *src = ZPROP_SRC_TEMPORARY; 1836168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 1837168404Spjd *val = B_FALSE; 1838168404Spjd if (src) 1839185029Spjd *src = ZPROP_SRC_TEMPORARY; 1840168404Spjd } 1841168404Spjd break; 1842168404Spjd 1843168404Spjd case ZFS_PROP_CANMOUNT: 1844219089Spjd case ZFS_PROP_VOLSIZE: 1845168404Spjd case ZFS_PROP_QUOTA: 1846185029Spjd case ZFS_PROP_REFQUOTA: 1847168404Spjd case ZFS_PROP_RESERVATION: 1848185029Spjd case ZFS_PROP_REFRESERVATION: 1849168404Spjd *val = getprop_uint64(zhp, prop, source); 1850219089Spjd 1851219089Spjd if (*source == NULL) { 1852219089Spjd /* not default, must be local */ 1853168404Spjd *source = zhp->zfs_name; 1854219089Spjd } 1855168404Spjd break; 1856168404Spjd 1857168404Spjd case ZFS_PROP_MOUNTED: 1858168404Spjd *val = (zhp->zfs_mntopts != NULL); 1859168404Spjd break; 1860168404Spjd 1861168404Spjd case ZFS_PROP_NUMCLONES: 1862168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 1863168404Spjd break; 1864168404Spjd 1865185029Spjd case ZFS_PROP_VERSION: 1866185029Spjd case ZFS_PROP_NORMALIZE: 1867185029Spjd case ZFS_PROP_UTF8ONLY: 1868185029Spjd case ZFS_PROP_CASE: 1869185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 1870185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 1871185029Spjd return (-1); 1872185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1873185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 1874185029Spjd zcmd_free_nvlists(&zc); 1875219089Spjd return (-1); 1876185029Spjd } 1877185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 1878185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 1879185029Spjd val) != 0) { 1880185029Spjd zcmd_free_nvlists(&zc); 1881219089Spjd return (-1); 1882185029Spjd } 1883185029Spjd if (zplprops) 1884185029Spjd nvlist_free(zplprops); 1885185029Spjd zcmd_free_nvlists(&zc); 1886185029Spjd break; 1887185029Spjd 1888168404Spjd default: 1889185029Spjd switch (zfs_prop_get_type(prop)) { 1890185029Spjd case PROP_TYPE_NUMBER: 1891185029Spjd case PROP_TYPE_INDEX: 1892185029Spjd *val = getprop_uint64(zhp, prop, source); 1893185029Spjd /* 1894209962Smm * If we tried to use a default value for a 1895185029Spjd * readonly property, it means that it was not 1896219089Spjd * present. 1897185029Spjd */ 1898185029Spjd if (zfs_prop_readonly(prop) && 1899219089Spjd *source != NULL && (*source)[0] == '\0') { 1900219089Spjd *source = NULL; 1901185029Spjd } 1902185029Spjd break; 1903185029Spjd 1904185029Spjd case PROP_TYPE_STRING: 1905185029Spjd default: 1906185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 1907185029Spjd "cannot get non-numeric property")); 1908185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 1909185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 1910185029Spjd } 1911168404Spjd } 1912168404Spjd 1913168404Spjd return (0); 1914168404Spjd} 1915168404Spjd 1916168404Spjd/* 1917168404Spjd * Calculate the source type, given the raw source string. 1918168404Spjd */ 1919168404Spjdstatic void 1920185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 1921168404Spjd char *statbuf, size_t statlen) 1922168404Spjd{ 1923185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 1924168404Spjd return; 1925168404Spjd 1926168404Spjd if (source == NULL) { 1927185029Spjd *srctype = ZPROP_SRC_NONE; 1928168404Spjd } else if (source[0] == '\0') { 1929185029Spjd *srctype = ZPROP_SRC_DEFAULT; 1930219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 1931219089Spjd *srctype = ZPROP_SRC_RECEIVED; 1932168404Spjd } else { 1933168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 1934185029Spjd *srctype = ZPROP_SRC_LOCAL; 1935168404Spjd } else { 1936168404Spjd (void) strlcpy(statbuf, source, statlen); 1937185029Spjd *srctype = ZPROP_SRC_INHERITED; 1938168404Spjd } 1939168404Spjd } 1940168404Spjd 1941168404Spjd} 1942168404Spjd 1943219089Spjdint 1944219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 1945219089Spjd size_t proplen, boolean_t literal) 1946219089Spjd{ 1947219089Spjd zfs_prop_t prop; 1948219089Spjd int err = 0; 1949219089Spjd 1950219089Spjd if (zhp->zfs_recvd_props == NULL) 1951219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 1952219089Spjd return (-1); 1953219089Spjd 1954219089Spjd prop = zfs_name_to_prop(propname); 1955219089Spjd 1956219089Spjd if (prop != ZPROP_INVAL) { 1957219089Spjd uint64_t cookie; 1958219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 1959219089Spjd return (-1); 1960219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 1961219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 1962219089Spjd NULL, NULL, 0, literal); 1963219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 1964219089Spjd } else { 1965219089Spjd nvlist_t *propval; 1966219089Spjd char *recvdval; 1967219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 1968219089Spjd propname, &propval) != 0) 1969219089Spjd return (-1); 1970219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 1971219089Spjd &recvdval) == 0); 1972219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 1973219089Spjd } 1974219089Spjd 1975219089Spjd return (err == 0 ? 0 : -1); 1976219089Spjd} 1977219089Spjd 1978228103Smmstatic int 1979228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 1980228103Smm{ 1981228103Smm nvlist_t *value; 1982228103Smm nvpair_t *pair; 1983228103Smm 1984228103Smm value = zfs_get_clones_nvl(zhp); 1985228103Smm if (value == NULL) 1986228103Smm return (-1); 1987228103Smm 1988228103Smm propbuf[0] = '\0'; 1989228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 1990228103Smm pair = nvlist_next_nvpair(value, pair)) { 1991228103Smm if (propbuf[0] != '\0') 1992228103Smm (void) strlcat(propbuf, ",", proplen); 1993228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 1994228103Smm } 1995228103Smm 1996228103Smm return (0); 1997228103Smm} 1998228103Smm 1999228103Smmstruct get_clones_arg { 2000228103Smm uint64_t numclones; 2001228103Smm nvlist_t *value; 2002228103Smm const char *origin; 2003228103Smm char buf[ZFS_MAXNAMELEN]; 2004228103Smm}; 2005228103Smm 2006228103Smmint 2007228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2008228103Smm{ 2009228103Smm struct get_clones_arg *gca = arg; 2010228103Smm 2011228103Smm if (gca->numclones == 0) { 2012228103Smm zfs_close(zhp); 2013228103Smm return (0); 2014228103Smm } 2015228103Smm 2016228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2017228103Smm NULL, NULL, 0, B_TRUE) != 0) 2018228103Smm goto out; 2019228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2020248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2021228103Smm gca->numclones--; 2022228103Smm } 2023228103Smm 2024228103Smmout: 2025228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2026228103Smm zfs_close(zhp); 2027228103Smm return (0); 2028228103Smm} 2029228103Smm 2030228103Smmnvlist_t * 2031228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2032228103Smm{ 2033228103Smm nvlist_t *nv, *value; 2034228103Smm 2035228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2036228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2037228103Smm struct get_clones_arg gca; 2038228103Smm 2039228103Smm /* 2040228103Smm * if this is a snapshot, then the kernel wasn't able 2041228103Smm * to get the clones. Do it by slowly iterating. 2042228103Smm */ 2043228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2044228103Smm return (NULL); 2045228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2046228103Smm return (NULL); 2047228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2048228103Smm nvlist_free(nv); 2049228103Smm return (NULL); 2050228103Smm } 2051228103Smm 2052228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2053228103Smm gca.value = value; 2054228103Smm gca.origin = zhp->zfs_name; 2055228103Smm 2056228103Smm if (gca.numclones != 0) { 2057228103Smm zfs_handle_t *root; 2058228103Smm char pool[ZFS_MAXNAMELEN]; 2059228103Smm char *cp = pool; 2060228103Smm 2061228103Smm /* get the pool name */ 2062228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2063228103Smm (void) strsep(&cp, "/@"); 2064228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2065228103Smm ZFS_TYPE_FILESYSTEM); 2066228103Smm 2067228103Smm (void) get_clones_cb(root, &gca); 2068228103Smm } 2069228103Smm 2070228103Smm if (gca.numclones != 0 || 2071228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2072228103Smm nvlist_add_nvlist(zhp->zfs_props, 2073228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2074228103Smm nvlist_free(nv); 2075228103Smm nvlist_free(value); 2076228103Smm return (NULL); 2077228103Smm } 2078228103Smm nvlist_free(nv); 2079228103Smm nvlist_free(value); 2080228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2081228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2082228103Smm } 2083228103Smm 2084228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2085228103Smm 2086228103Smm return (value); 2087228103Smm} 2088228103Smm 2089168404Spjd/* 2090168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2091168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2092168404Spjd * human-readable form. 2093168404Spjd * 2094168404Spjd * Returns 0 on success, or -1 on error. 2095168404Spjd */ 2096168404Spjdint 2097168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2098185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2099168404Spjd{ 2100168404Spjd char *source = NULL; 2101168404Spjd uint64_t val; 2102168404Spjd char *str; 2103168404Spjd const char *strval; 2104219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2105168404Spjd 2106168404Spjd /* 2107168404Spjd * Check to see if this property applies to our object 2108168404Spjd */ 2109168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2110168404Spjd return (-1); 2111168404Spjd 2112219089Spjd if (received && zfs_prop_readonly(prop)) 2113219089Spjd return (-1); 2114219089Spjd 2115168404Spjd if (src) 2116185029Spjd *src = ZPROP_SRC_NONE; 2117168404Spjd 2118168404Spjd switch (prop) { 2119168404Spjd case ZFS_PROP_CREATION: 2120168404Spjd /* 2121168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2122168404Spjd * this into a string unless 'literal' is specified. 2123168404Spjd */ 2124168404Spjd { 2125168404Spjd val = getprop_uint64(zhp, prop, &source); 2126168404Spjd time_t time = (time_t)val; 2127168404Spjd struct tm t; 2128168404Spjd 2129168404Spjd if (literal || 2130168404Spjd localtime_r(&time, &t) == NULL || 2131168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2132168404Spjd &t) == 0) 2133168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2134168404Spjd } 2135168404Spjd break; 2136168404Spjd 2137168404Spjd case ZFS_PROP_MOUNTPOINT: 2138168404Spjd /* 2139168404Spjd * Getting the precise mountpoint can be tricky. 2140168404Spjd * 2141168404Spjd * - for 'none' or 'legacy', return those values. 2142168404Spjd * - for inherited mountpoints, we want to take everything 2143168404Spjd * after our ancestor and append it to the inherited value. 2144168404Spjd * 2145168404Spjd * If the pool has an alternate root, we want to prepend that 2146168404Spjd * root to any values we return. 2147168404Spjd */ 2148185029Spjd 2149168404Spjd str = getprop_string(zhp, prop, &source); 2150168404Spjd 2151185029Spjd if (str[0] == '/') { 2152185029Spjd char buf[MAXPATHLEN]; 2153185029Spjd char *root = buf; 2154219089Spjd const char *relpath; 2155168404Spjd 2156219089Spjd /* 2157219089Spjd * If we inherit the mountpoint, even from a dataset 2158219089Spjd * with a received value, the source will be the path of 2159219089Spjd * the dataset we inherit from. If source is 2160219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2161219089Spjd * inherited. 2162219089Spjd */ 2163219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2164219089Spjd relpath = ""; 2165219089Spjd } else { 2166219089Spjd relpath = zhp->zfs_name + strlen(source); 2167219089Spjd if (relpath[0] == '/') 2168219089Spjd relpath++; 2169219089Spjd } 2170185029Spjd 2171185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2172185029Spjd ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || 2173185029Spjd (strcmp(root, "-") == 0)) 2174185029Spjd root[0] = '\0'; 2175185029Spjd /* 2176185029Spjd * Special case an alternate root of '/'. This will 2177185029Spjd * avoid having multiple leading slashes in the 2178185029Spjd * mountpoint path. 2179185029Spjd */ 2180185029Spjd if (strcmp(root, "/") == 0) 2181185029Spjd root++; 2182185029Spjd 2183185029Spjd /* 2184185029Spjd * If the mountpoint is '/' then skip over this 2185185029Spjd * if we are obtaining either an alternate root or 2186185029Spjd * an inherited mountpoint. 2187185029Spjd */ 2188185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2189185029Spjd relpath[0] != '\0')) 2190168404Spjd str++; 2191168404Spjd 2192168404Spjd if (relpath[0] == '\0') 2193168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2194168404Spjd root, str); 2195168404Spjd else 2196168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2197168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2198168404Spjd relpath); 2199168404Spjd } else { 2200168404Spjd /* 'legacy' or 'none' */ 2201168404Spjd (void) strlcpy(propbuf, str, proplen); 2202168404Spjd } 2203168404Spjd 2204168404Spjd break; 2205168404Spjd 2206168404Spjd case ZFS_PROP_ORIGIN: 2207168404Spjd (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), 2208168404Spjd proplen); 2209168404Spjd /* 2210168404Spjd * If there is no parent at all, return failure to indicate that 2211168404Spjd * it doesn't apply to this dataset. 2212168404Spjd */ 2213168404Spjd if (propbuf[0] == '\0') 2214168404Spjd return (-1); 2215168404Spjd break; 2216168404Spjd 2217228103Smm case ZFS_PROP_CLONES: 2218228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2219228103Smm return (-1); 2220228103Smm break; 2221228103Smm 2222168404Spjd case ZFS_PROP_QUOTA: 2223185029Spjd case ZFS_PROP_REFQUOTA: 2224168404Spjd case ZFS_PROP_RESERVATION: 2225185029Spjd case ZFS_PROP_REFRESERVATION: 2226185029Spjd 2227168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2228168404Spjd return (-1); 2229168404Spjd 2230168404Spjd /* 2231168404Spjd * If quota or reservation is 0, we translate this into 'none' 2232168404Spjd * (unless literal is set), and indicate that it's the default 2233168404Spjd * value. Otherwise, we print the number nicely and indicate 2234168404Spjd * that its set locally. 2235168404Spjd */ 2236168404Spjd if (val == 0) { 2237168404Spjd if (literal) 2238168404Spjd (void) strlcpy(propbuf, "0", proplen); 2239168404Spjd else 2240168404Spjd (void) strlcpy(propbuf, "none", proplen); 2241168404Spjd } else { 2242168404Spjd if (literal) 2243168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2244168404Spjd (u_longlong_t)val); 2245168404Spjd else 2246168404Spjd zfs_nicenum(val, propbuf, proplen); 2247168404Spjd } 2248168404Spjd break; 2249168404Spjd 2250223623Smm case ZFS_PROP_REFRATIO: 2251168404Spjd case ZFS_PROP_COMPRESSRATIO: 2252168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2253168404Spjd return (-1); 2254219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2255219089Spjd (u_longlong_t)(val / 100), 2256219089Spjd (u_longlong_t)(val % 100)); 2257168404Spjd break; 2258168404Spjd 2259168404Spjd case ZFS_PROP_TYPE: 2260168404Spjd switch (zhp->zfs_type) { 2261168404Spjd case ZFS_TYPE_FILESYSTEM: 2262168404Spjd str = "filesystem"; 2263168404Spjd break; 2264168404Spjd case ZFS_TYPE_VOLUME: 2265168404Spjd str = "volume"; 2266168404Spjd break; 2267168404Spjd case ZFS_TYPE_SNAPSHOT: 2268168404Spjd str = "snapshot"; 2269168404Spjd break; 2270168404Spjd default: 2271168404Spjd abort(); 2272168404Spjd } 2273168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2274168404Spjd break; 2275168404Spjd 2276168404Spjd case ZFS_PROP_MOUNTED: 2277168404Spjd /* 2278168404Spjd * The 'mounted' property is a pseudo-property that described 2279168404Spjd * whether the filesystem is currently mounted. Even though 2280168404Spjd * it's a boolean value, the typical values of "on" and "off" 2281168404Spjd * don't make sense, so we translate to "yes" and "no". 2282168404Spjd */ 2283168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2284168404Spjd src, &source, &val) != 0) 2285168404Spjd return (-1); 2286168404Spjd if (val) 2287168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2288168404Spjd else 2289168404Spjd (void) strlcpy(propbuf, "no", proplen); 2290168404Spjd break; 2291168404Spjd 2292168404Spjd case ZFS_PROP_NAME: 2293168404Spjd /* 2294168404Spjd * The 'name' property is a pseudo-property derived from the 2295168404Spjd * dataset name. It is presented as a real property to simplify 2296168404Spjd * consumers. 2297168404Spjd */ 2298168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2299168404Spjd break; 2300168404Spjd 2301219089Spjd case ZFS_PROP_MLSLABEL: 2302219089Spjd { 2303219089Spjd#ifdef sun 2304219089Spjd m_label_t *new_sl = NULL; 2305219089Spjd char *ascii = NULL; /* human readable label */ 2306219089Spjd 2307219089Spjd (void) strlcpy(propbuf, 2308219089Spjd getprop_string(zhp, prop, &source), proplen); 2309219089Spjd 2310219089Spjd if (literal || (strcasecmp(propbuf, 2311219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2312219089Spjd break; 2313219089Spjd 2314219089Spjd /* 2315219089Spjd * Try to translate the internal hex string to 2316219089Spjd * human-readable output. If there are any 2317219089Spjd * problems just use the hex string. 2318219089Spjd */ 2319219089Spjd 2320219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2321219089Spjd L_NO_CORRECTION, NULL) == -1) { 2322219089Spjd m_label_free(new_sl); 2323219089Spjd break; 2324219089Spjd } 2325219089Spjd 2326219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2327219089Spjd DEF_NAMES) != 0) { 2328219089Spjd if (ascii) 2329219089Spjd free(ascii); 2330219089Spjd m_label_free(new_sl); 2331219089Spjd break; 2332219089Spjd } 2333219089Spjd m_label_free(new_sl); 2334219089Spjd 2335219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2336219089Spjd free(ascii); 2337219089Spjd#else /* !sun */ 2338219089Spjd propbuf[0] = '\0'; 2339219089Spjd#endif /* !sun */ 2340219089Spjd } 2341219089Spjd break; 2342219089Spjd 2343236705Smm case ZFS_PROP_GUID: 2344236705Smm /* 2345236705Smm * GUIDs are stored as numbers, but they are identifiers. 2346236705Smm * We don't want them to be pretty printed, because pretty 2347236705Smm * printing mangles the ID into a truncated and useless value. 2348236705Smm */ 2349236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2350236705Smm return (-1); 2351236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2352236705Smm break; 2353236705Smm 2354168404Spjd default: 2355185029Spjd switch (zfs_prop_get_type(prop)) { 2356185029Spjd case PROP_TYPE_NUMBER: 2357185029Spjd if (get_numeric_property(zhp, prop, src, 2358185029Spjd &source, &val) != 0) 2359185029Spjd return (-1); 2360185029Spjd if (literal) 2361185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2362185029Spjd (u_longlong_t)val); 2363185029Spjd else 2364185029Spjd zfs_nicenum(val, propbuf, proplen); 2365185029Spjd break; 2366185029Spjd 2367185029Spjd case PROP_TYPE_STRING: 2368185029Spjd (void) strlcpy(propbuf, 2369185029Spjd getprop_string(zhp, prop, &source), proplen); 2370185029Spjd break; 2371185029Spjd 2372185029Spjd case PROP_TYPE_INDEX: 2373185029Spjd if (get_numeric_property(zhp, prop, src, 2374185029Spjd &source, &val) != 0) 2375185029Spjd return (-1); 2376185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2377185029Spjd return (-1); 2378185029Spjd (void) strlcpy(propbuf, strval, proplen); 2379185029Spjd break; 2380185029Spjd 2381185029Spjd default: 2382185029Spjd abort(); 2383185029Spjd } 2384168404Spjd } 2385168404Spjd 2386168404Spjd get_source(zhp, src, source, statbuf, statlen); 2387168404Spjd 2388168404Spjd return (0); 2389168404Spjd} 2390168404Spjd 2391168404Spjd/* 2392168404Spjd * Utility function to get the given numeric property. Does no validation that 2393168404Spjd * the given property is the appropriate type; should only be used with 2394168404Spjd * hard-coded property types. 2395168404Spjd */ 2396168404Spjduint64_t 2397168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2398168404Spjd{ 2399168404Spjd char *source; 2400168404Spjd uint64_t val; 2401168404Spjd 2402185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2403168404Spjd 2404168404Spjd return (val); 2405168404Spjd} 2406168404Spjd 2407185029Spjdint 2408185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2409185029Spjd{ 2410185029Spjd char buf[64]; 2411185029Spjd 2412209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2413185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2414185029Spjd} 2415185029Spjd 2416168404Spjd/* 2417168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2418168404Spjd */ 2419168404Spjdint 2420168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2421185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2422168404Spjd{ 2423168404Spjd char *source; 2424168404Spjd 2425168404Spjd /* 2426168404Spjd * Check to see if this property applies to our object 2427168404Spjd */ 2428185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2429168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2430168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2431168404Spjd zfs_prop_to_name(prop))); 2432185029Spjd } 2433168404Spjd 2434168404Spjd if (src) 2435185029Spjd *src = ZPROP_SRC_NONE; 2436168404Spjd 2437168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2438168404Spjd return (-1); 2439168404Spjd 2440168404Spjd get_source(zhp, src, source, statbuf, statlen); 2441168404Spjd 2442168404Spjd return (0); 2443168404Spjd} 2444168404Spjd 2445209962Smmstatic int 2446209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2447209962Smm char **domainp, idmap_rid_t *ridp) 2448209962Smm{ 2449209962Smm#ifdef sun 2450209962Smm idmap_get_handle_t *get_hdl = NULL; 2451209962Smm idmap_stat status; 2452209962Smm int err = EINVAL; 2453209962Smm 2454219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2455209962Smm goto out; 2456209962Smm 2457209962Smm if (isuser) { 2458209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2459209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2460209962Smm } else { 2461209962Smm err = idmap_get_sidbygid(get_hdl, id, 2462209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2463209962Smm } 2464209962Smm if (err == IDMAP_SUCCESS && 2465209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2466209962Smm status == IDMAP_SUCCESS) 2467209962Smm err = 0; 2468209962Smm else 2469209962Smm err = EINVAL; 2470209962Smmout: 2471209962Smm if (get_hdl) 2472209962Smm idmap_get_destroy(get_hdl); 2473209962Smm return (err); 2474209962Smm#else /* !sun */ 2475209962Smm assert(!"invalid code path"); 2476209962Smm#endif /* !sun */ 2477209962Smm} 2478209962Smm 2479168404Spjd/* 2480209962Smm * convert the propname into parameters needed by kernel 2481209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2482209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2483209962Smm */ 2484209962Smmstatic int 2485209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2486209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2487209962Smm{ 2488209962Smm zfs_userquota_prop_t type; 2489209962Smm char *cp, *end; 2490209962Smm char *numericsid = NULL; 2491209962Smm boolean_t isuser; 2492209962Smm 2493209962Smm domain[0] = '\0'; 2494209962Smm 2495209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2496209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2497209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2498209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2499209962Smm break; 2500209962Smm } 2501209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2502209962Smm return (EINVAL); 2503209962Smm *typep = type; 2504209962Smm 2505209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2506209962Smm type == ZFS_PROP_USERUSED); 2507209962Smm 2508209962Smm cp = strchr(propname, '@') + 1; 2509209962Smm 2510209962Smm if (strchr(cp, '@')) { 2511209962Smm#ifdef sun 2512209962Smm /* 2513209962Smm * It's a SID name (eg "user@domain") that needs to be 2514209962Smm * turned into S-1-domainID-RID. 2515209962Smm */ 2516209962Smm directory_error_t e; 2517209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2518209962Smm return (ENOENT); 2519209962Smm if (isuser) { 2520209962Smm e = directory_sid_from_user_name(NULL, 2521209962Smm cp, &numericsid); 2522209962Smm } else { 2523209962Smm e = directory_sid_from_group_name(NULL, 2524209962Smm cp, &numericsid); 2525209962Smm } 2526209962Smm if (e != NULL) { 2527209962Smm directory_error_free(e); 2528209962Smm return (ENOENT); 2529209962Smm } 2530209962Smm if (numericsid == NULL) 2531209962Smm return (ENOENT); 2532209962Smm cp = numericsid; 2533209962Smm /* will be further decoded below */ 2534209962Smm#else /* !sun */ 2535219089Spjd return (ENOENT); 2536209962Smm#endif /* !sun */ 2537209962Smm } 2538209962Smm 2539209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2540209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2541209962Smm (void) strlcpy(domain, cp, domainlen); 2542209962Smm cp = strrchr(domain, '-'); 2543209962Smm *cp = '\0'; 2544209962Smm cp++; 2545209962Smm 2546209962Smm errno = 0; 2547209962Smm *ridp = strtoull(cp, &end, 10); 2548209962Smm if (numericsid) { 2549209962Smm free(numericsid); 2550209962Smm numericsid = NULL; 2551209962Smm } 2552209962Smm if (errno != 0 || *end != '\0') 2553209962Smm return (EINVAL); 2554209962Smm } else if (!isdigit(*cp)) { 2555209962Smm /* 2556209962Smm * It's a user/group name (eg "user") that needs to be 2557209962Smm * turned into a uid/gid 2558209962Smm */ 2559209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2560209962Smm return (ENOENT); 2561209962Smm if (isuser) { 2562209962Smm struct passwd *pw; 2563209962Smm pw = getpwnam(cp); 2564209962Smm if (pw == NULL) 2565209962Smm return (ENOENT); 2566209962Smm *ridp = pw->pw_uid; 2567209962Smm } else { 2568209962Smm struct group *gr; 2569209962Smm gr = getgrnam(cp); 2570209962Smm if (gr == NULL) 2571209962Smm return (ENOENT); 2572209962Smm *ridp = gr->gr_gid; 2573209962Smm } 2574209962Smm } else { 2575209962Smm /* It's a user/group ID (eg "12345"). */ 2576209962Smm uid_t id = strtoul(cp, &end, 10); 2577209962Smm idmap_rid_t rid; 2578209962Smm char *mapdomain; 2579209962Smm 2580209962Smm if (*end != '\0') 2581209962Smm return (EINVAL); 2582209962Smm if (id > MAXUID) { 2583209962Smm /* It's an ephemeral ID. */ 2584209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2585209962Smm &mapdomain, &rid) != 0) 2586209962Smm return (ENOENT); 2587209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2588209962Smm *ridp = rid; 2589209962Smm } else { 2590209962Smm *ridp = id; 2591209962Smm } 2592209962Smm } 2593209962Smm 2594209962Smm ASSERT3P(numericsid, ==, NULL); 2595209962Smm return (0); 2596209962Smm} 2597209962Smm 2598209962Smmstatic int 2599209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2600209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2601209962Smm{ 2602209962Smm int err; 2603209962Smm zfs_cmd_t zc = { 0 }; 2604209962Smm 2605228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2606209962Smm 2607209962Smm err = userquota_propname_decode(propname, 2608209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2609209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2610209962Smm zc.zc_objset_type = *typep; 2611209962Smm if (err) 2612209962Smm return (err); 2613209962Smm 2614209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2615209962Smm if (err) 2616209962Smm return (err); 2617209962Smm 2618209962Smm *propvalue = zc.zc_cookie; 2619209962Smm return (0); 2620209962Smm} 2621209962Smm 2622209962Smmint 2623209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2624209962Smm uint64_t *propvalue) 2625209962Smm{ 2626209962Smm zfs_userquota_prop_t type; 2627209962Smm 2628209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2629209962Smm &type)); 2630209962Smm} 2631209962Smm 2632209962Smmint 2633209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2634209962Smm char *propbuf, int proplen, boolean_t literal) 2635209962Smm{ 2636209962Smm int err; 2637209962Smm uint64_t propvalue; 2638209962Smm zfs_userquota_prop_t type; 2639209962Smm 2640209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2641209962Smm &type); 2642209962Smm 2643209962Smm if (err) 2644209962Smm return (err); 2645209962Smm 2646209962Smm if (literal) { 2647209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2648209962Smm } else if (propvalue == 0 && 2649209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2650209962Smm (void) strlcpy(propbuf, "none", proplen); 2651209962Smm } else { 2652209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2653209962Smm } 2654209962Smm return (0); 2655209962Smm} 2656209962Smm 2657228103Smmint 2658228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2659228103Smm uint64_t *propvalue) 2660168404Spjd{ 2661228103Smm int err; 2662228103Smm zfs_cmd_t zc = { 0 }; 2663228103Smm const char *snapname; 2664168404Spjd 2665228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2666168404Spjd 2667228103Smm snapname = strchr(propname, '@') + 1; 2668228103Smm if (strchr(snapname, '@')) { 2669228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2670228103Smm } else { 2671228103Smm /* snapname is the short name, append it to zhp's fsname */ 2672228103Smm char *cp; 2673209962Smm 2674228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2675228103Smm sizeof (zc.zc_value)); 2676228103Smm cp = strchr(zc.zc_value, '@'); 2677228103Smm if (cp != NULL) 2678228103Smm *cp = '\0'; 2679228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2680228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2681228103Smm } 2682209962Smm 2683228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2684228103Smm if (err) 2685228103Smm return (err); 2686228103Smm 2687228103Smm *propvalue = zc.zc_cookie; 2688228103Smm return (0); 2689209962Smm} 2690209962Smm 2691168404Spjdint 2692228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2693228103Smm char *propbuf, int proplen, boolean_t literal) 2694168404Spjd{ 2695228103Smm int err; 2696228103Smm uint64_t propvalue; 2697168404Spjd 2698228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2699185029Spjd 2700228103Smm if (err) 2701228103Smm return (err); 2702209962Smm 2703228103Smm if (literal) { 2704228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2705228103Smm } else { 2706228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2707168404Spjd } 2708228103Smm return (0); 2709168404Spjd} 2710168404Spjd 2711168404Spjd/* 2712228103Smm * Returns the name of the given zfs handle. 2713168404Spjd */ 2714228103Smmconst char * 2715228103Smmzfs_get_name(const zfs_handle_t *zhp) 2716168404Spjd{ 2717228103Smm return (zhp->zfs_name); 2718228103Smm} 2719168404Spjd 2720228103Smm/* 2721228103Smm * Returns the type of the given zfs handle. 2722228103Smm */ 2723228103Smmzfs_type_t 2724228103Smmzfs_get_type(const zfs_handle_t *zhp) 2725228103Smm{ 2726228103Smm return (zhp->zfs_type); 2727168404Spjd} 2728168404Spjd 2729168404Spjd/* 2730219089Spjd * Is one dataset name a child dataset of another? 2731219089Spjd * 2732219089Spjd * Needs to handle these cases: 2733219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2734219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2735219089Spjd * Descendant? No. No. No. Yes. 2736219089Spjd */ 2737219089Spjdstatic boolean_t 2738219089Spjdis_descendant(const char *ds1, const char *ds2) 2739219089Spjd{ 2740219089Spjd size_t d1len = strlen(ds1); 2741219089Spjd 2742219089Spjd /* ds2 can't be a descendant if it's smaller */ 2743219089Spjd if (strlen(ds2) < d1len) 2744219089Spjd return (B_FALSE); 2745219089Spjd 2746219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2747219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2748219089Spjd} 2749219089Spjd 2750219089Spjd/* 2751168404Spjd * Given a complete name, return just the portion that refers to the parent. 2752228103Smm * Will return -1 if there is no parent (path is just the name of the 2753228103Smm * pool). 2754168404Spjd */ 2755168404Spjdstatic int 2756168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2757168404Spjd{ 2758228103Smm char *slashp; 2759168404Spjd 2760228103Smm (void) strlcpy(buf, path, buflen); 2761228103Smm 2762228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 2763168404Spjd return (-1); 2764228103Smm *slashp = '\0'; 2765168404Spjd 2766168404Spjd return (0); 2767168404Spjd} 2768168404Spjd 2769168404Spjd/* 2770185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 2771185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 2772185029Spjd * closest existing ancestor for the given path. In prefixlen return the 2773185029Spjd * length of already existing prefix of the given path. We also fetch the 2774185029Spjd * 'zoned' property, which is used to validate property settings when creating 2775185029Spjd * new datasets. 2776168404Spjd */ 2777168404Spjdstatic int 2778185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 2779185029Spjd boolean_t accept_ancestor, int *prefixlen) 2780168404Spjd{ 2781168404Spjd zfs_cmd_t zc = { 0 }; 2782168404Spjd char parent[ZFS_MAXNAMELEN]; 2783168404Spjd char *slash; 2784168404Spjd zfs_handle_t *zhp; 2785168404Spjd char errbuf[1024]; 2786219089Spjd uint64_t is_zoned; 2787168404Spjd 2788209962Smm (void) snprintf(errbuf, sizeof (errbuf), 2789209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 2790168404Spjd 2791168404Spjd /* get parent, and check to see if this is just a pool */ 2792168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 2793168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2794168404Spjd "missing dataset name")); 2795168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2796168404Spjd } 2797168404Spjd 2798168404Spjd /* check to see if the pool exists */ 2799168404Spjd if ((slash = strchr(parent, '/')) == NULL) 2800168404Spjd slash = parent + strlen(parent); 2801168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 2802168404Spjd zc.zc_name[slash - parent] = '\0'; 2803168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 2804168404Spjd errno == ENOENT) { 2805168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2806168404Spjd "no such pool '%s'"), zc.zc_name); 2807168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2808168404Spjd } 2809168404Spjd 2810168404Spjd /* check to see if the parent dataset exists */ 2811185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 2812185029Spjd if (errno == ENOENT && accept_ancestor) { 2813185029Spjd /* 2814185029Spjd * Go deeper to find an ancestor, give up on top level. 2815185029Spjd */ 2816185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 2817185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2818185029Spjd "no such pool '%s'"), zc.zc_name); 2819185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2820185029Spjd } 2821185029Spjd } else if (errno == ENOENT) { 2822168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2823168404Spjd "parent does not exist")); 2824168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2825185029Spjd } else 2826168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 2827168404Spjd } 2828168404Spjd 2829219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 2830219089Spjd if (zoned != NULL) 2831219089Spjd *zoned = is_zoned; 2832219089Spjd 2833168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 2834219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 2835168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 2836168404Spjd zfs_close(zhp); 2837168404Spjd return (-1); 2838168404Spjd } 2839168404Spjd 2840168404Spjd /* make sure parent is a filesystem */ 2841168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 2842168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2843168404Spjd "parent is not a filesystem")); 2844168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 2845168404Spjd zfs_close(zhp); 2846168404Spjd return (-1); 2847168404Spjd } 2848168404Spjd 2849168404Spjd zfs_close(zhp); 2850185029Spjd if (prefixlen != NULL) 2851185029Spjd *prefixlen = strlen(parent); 2852168404Spjd return (0); 2853168404Spjd} 2854168404Spjd 2855168404Spjd/* 2856185029Spjd * Finds whether the dataset of the given type(s) exists. 2857185029Spjd */ 2858185029Spjdboolean_t 2859185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 2860185029Spjd{ 2861185029Spjd zfs_handle_t *zhp; 2862185029Spjd 2863185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 2864185029Spjd return (B_FALSE); 2865185029Spjd 2866185029Spjd /* 2867185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 2868185029Spjd */ 2869185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 2870185029Spjd int ds_type = zhp->zfs_type; 2871185029Spjd 2872185029Spjd zfs_close(zhp); 2873185029Spjd if (types & ds_type) 2874185029Spjd return (B_TRUE); 2875185029Spjd } 2876185029Spjd return (B_FALSE); 2877185029Spjd} 2878185029Spjd 2879185029Spjd/* 2880185029Spjd * Given a path to 'target', create all the ancestors between 2881185029Spjd * the prefixlen portion of the path, and the target itself. 2882185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 2883185029Spjd */ 2884185029Spjdint 2885185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 2886185029Spjd{ 2887185029Spjd zfs_handle_t *h; 2888185029Spjd char *cp; 2889185029Spjd const char *opname; 2890185029Spjd 2891185029Spjd /* make sure prefix exists */ 2892185029Spjd cp = target + prefixlen; 2893185029Spjd if (*cp != '/') { 2894185029Spjd assert(strchr(cp, '/') == NULL); 2895185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2896185029Spjd } else { 2897185029Spjd *cp = '\0'; 2898185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2899185029Spjd *cp = '/'; 2900185029Spjd } 2901185029Spjd if (h == NULL) 2902185029Spjd return (-1); 2903185029Spjd zfs_close(h); 2904185029Spjd 2905185029Spjd /* 2906185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 2907185029Spjd * up to the prefixlen-long one. 2908185029Spjd */ 2909185029Spjd for (cp = target + prefixlen + 1; 2910185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 2911185029Spjd 2912185029Spjd *cp = '\0'; 2913185029Spjd 2914185029Spjd h = make_dataset_handle(hdl, target); 2915185029Spjd if (h) { 2916185029Spjd /* it already exists, nothing to do here */ 2917185029Spjd zfs_close(h); 2918185029Spjd continue; 2919185029Spjd } 2920185029Spjd 2921185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 2922185029Spjd NULL) != 0) { 2923185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 2924185029Spjd goto ancestorerr; 2925185029Spjd } 2926185029Spjd 2927185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2928185029Spjd if (h == NULL) { 2929185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 2930185029Spjd goto ancestorerr; 2931185029Spjd } 2932185029Spjd 2933185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 2934185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 2935185029Spjd goto ancestorerr; 2936185029Spjd } 2937185029Spjd 2938185029Spjd if (zfs_share(h) != 0) { 2939185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 2940185029Spjd goto ancestorerr; 2941185029Spjd } 2942185029Spjd 2943185029Spjd zfs_close(h); 2944185029Spjd } 2945185029Spjd 2946185029Spjd return (0); 2947185029Spjd 2948185029Spjdancestorerr: 2949185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2950185029Spjd "failed to %s ancestor '%s'"), opname, target); 2951185029Spjd return (-1); 2952185029Spjd} 2953185029Spjd 2954185029Spjd/* 2955185029Spjd * Creates non-existing ancestors of the given path. 2956185029Spjd */ 2957185029Spjdint 2958185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 2959185029Spjd{ 2960185029Spjd int prefix; 2961185029Spjd char *path_copy; 2962185029Spjd int rc; 2963185029Spjd 2964219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 2965185029Spjd return (-1); 2966185029Spjd 2967185029Spjd if ((path_copy = strdup(path)) != NULL) { 2968185029Spjd rc = create_parents(hdl, path_copy, prefix); 2969185029Spjd free(path_copy); 2970185029Spjd } 2971185029Spjd if (path_copy == NULL || rc != 0) 2972185029Spjd return (-1); 2973185029Spjd 2974185029Spjd return (0); 2975185029Spjd} 2976185029Spjd 2977185029Spjd/* 2978168404Spjd * Create a new filesystem or volume. 2979168404Spjd */ 2980168404Spjdint 2981168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 2982168404Spjd nvlist_t *props) 2983168404Spjd{ 2984168404Spjd int ret; 2985168404Spjd uint64_t size = 0; 2986168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 2987168404Spjd char errbuf[1024]; 2988168404Spjd uint64_t zoned; 2989248571Smm dmu_objset_type_t ost; 2990168404Spjd 2991168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 2992168404Spjd "cannot create '%s'"), path); 2993168404Spjd 2994168404Spjd /* validate the path, taking care to note the extended error message */ 2995185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 2996168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2997168404Spjd 2998168404Spjd /* validate parents exist */ 2999185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3000168404Spjd return (-1); 3001168404Spjd 3002168404Spjd /* 3003168404Spjd * The failure modes when creating a dataset of a different type over 3004168404Spjd * one that already exists is a little strange. In particular, if you 3005168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3006168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3007168404Spjd * first try to see if the dataset exists. 3008168404Spjd */ 3009248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3010168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3011168404Spjd "dataset already exists")); 3012168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3013168404Spjd } 3014168404Spjd 3015168404Spjd if (type == ZFS_TYPE_VOLUME) 3016248571Smm ost = DMU_OST_ZVOL; 3017168404Spjd else 3018248571Smm ost = DMU_OST_ZFS; 3019168404Spjd 3020185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3021168404Spjd zoned, NULL, errbuf)) == 0) 3022168404Spjd return (-1); 3023168404Spjd 3024168404Spjd if (type == ZFS_TYPE_VOLUME) { 3025168404Spjd /* 3026168404Spjd * If we are creating a volume, the size and block size must 3027168404Spjd * satisfy a few restraints. First, the blocksize must be a 3028168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3029168404Spjd * volsize must be a multiple of the block size, and cannot be 3030168404Spjd * zero. 3031168404Spjd */ 3032168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3033168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3034168404Spjd nvlist_free(props); 3035168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3036168404Spjd "missing volume size")); 3037168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3038168404Spjd } 3039168404Spjd 3040168404Spjd if ((ret = nvlist_lookup_uint64(props, 3041168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3042168404Spjd &blocksize)) != 0) { 3043168404Spjd if (ret == ENOENT) { 3044168404Spjd blocksize = zfs_prop_default_numeric( 3045168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3046168404Spjd } else { 3047168404Spjd nvlist_free(props); 3048168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3049168404Spjd "missing volume block size")); 3050168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3051168404Spjd } 3052168404Spjd } 3053168404Spjd 3054168404Spjd if (size == 0) { 3055168404Spjd nvlist_free(props); 3056168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3057168404Spjd "volume size cannot be zero")); 3058168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3059168404Spjd } 3060168404Spjd 3061168404Spjd if (size % blocksize != 0) { 3062168404Spjd nvlist_free(props); 3063168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3064168404Spjd "volume size must be a multiple of volume block " 3065168404Spjd "size")); 3066168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3067168404Spjd } 3068168404Spjd } 3069168404Spjd 3070248571Smm /* create the dataset */ 3071248571Smm ret = lzc_create(path, ost, props); 3072168404Spjd nvlist_free(props); 3073168404Spjd 3074168404Spjd /* check for failure */ 3075168404Spjd if (ret != 0) { 3076168404Spjd char parent[ZFS_MAXNAMELEN]; 3077168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3078168404Spjd 3079168404Spjd switch (errno) { 3080168404Spjd case ENOENT: 3081168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3082168404Spjd "no such parent '%s'"), parent); 3083168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3084168404Spjd 3085168404Spjd case EINVAL: 3086168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3087168404Spjd "parent '%s' is not a filesystem"), parent); 3088168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3089168404Spjd 3090168404Spjd case EDOM: 3091168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3092168404Spjd "volume block size must be power of 2 from " 3093168404Spjd "%u to %uk"), 3094168404Spjd (uint_t)SPA_MINBLOCKSIZE, 3095168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 3096168404Spjd 3097168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3098168404Spjd 3099185029Spjd case ENOTSUP: 3100185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3101185029Spjd "pool must be upgraded to set this " 3102185029Spjd "property or value")); 3103185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3104168404Spjd#ifdef _ILP32 3105168404Spjd case EOVERFLOW: 3106168404Spjd /* 3107168404Spjd * This platform can't address a volume this big. 3108168404Spjd */ 3109168404Spjd if (type == ZFS_TYPE_VOLUME) 3110168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3111168404Spjd errbuf)); 3112168404Spjd#endif 3113168404Spjd /* FALLTHROUGH */ 3114168404Spjd default: 3115168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3116168404Spjd } 3117168404Spjd } 3118168404Spjd 3119168404Spjd return (0); 3120168404Spjd} 3121168404Spjd 3122168404Spjd/* 3123168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3124238422Smm * isn't mounted, and that there are no active dependents. If the file system 3125238422Smm * does not exist this function does nothing. 3126168404Spjd */ 3127168404Spjdint 3128219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3129168404Spjd{ 3130168404Spjd zfs_cmd_t zc = { 0 }; 3131168404Spjd 3132168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3133168404Spjd 3134168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3135168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3136168404Spjd } else { 3137168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3138168404Spjd } 3139168404Spjd 3140219089Spjd zc.zc_defer_destroy = defer; 3141238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3142238422Smm errno != ENOENT) { 3143168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3144168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3145168404Spjd zhp->zfs_name)); 3146168404Spjd } 3147168404Spjd 3148168404Spjd remove_mountpoint(zhp); 3149168404Spjd 3150168404Spjd return (0); 3151168404Spjd} 3152168404Spjd 3153168404Spjdstruct destroydata { 3154228103Smm nvlist_t *nvl; 3155228103Smm const char *snapname; 3156168404Spjd}; 3157168404Spjd 3158168404Spjdstatic int 3159219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3160168404Spjd{ 3161168404Spjd struct destroydata *dd = arg; 3162168404Spjd char name[ZFS_MAXNAMELEN]; 3163219089Spjd int rv = 0; 3164168404Spjd 3165228103Smm (void) snprintf(name, sizeof (name), 3166228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3167168404Spjd 3168251646Sdelphij if (lzc_exists(name)) 3169228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3170168404Spjd 3171228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3172228103Smm zfs_close(zhp); 3173168404Spjd return (rv); 3174168404Spjd} 3175168404Spjd 3176168404Spjd/* 3177168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3178168404Spjd */ 3179168404Spjdint 3180219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3181168404Spjd{ 3182168404Spjd int ret; 3183168404Spjd struct destroydata dd = { 0 }; 3184168404Spjd 3185168404Spjd dd.snapname = snapname; 3186228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3187228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3188168404Spjd 3189251646Sdelphij if (nvlist_empty(dd.nvl)) { 3190228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3191168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3192228103Smm zhp->zfs_name, snapname); 3193228103Smm } else { 3194248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3195168404Spjd } 3196228103Smm nvlist_free(dd.nvl); 3197228103Smm return (ret); 3198228103Smm} 3199168404Spjd 3200228103Smm/* 3201248571Smm * Destroys all the snapshots named in the nvlist. 3202228103Smm */ 3203228103Smmint 3204248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3205228103Smm{ 3206228103Smm int ret; 3207248571Smm nvlist_t *errlist; 3208228103Smm 3209248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3210168404Spjd 3211248571Smm if (ret == 0) 3212248571Smm return (0); 3213248571Smm 3214251646Sdelphij if (nvlist_empty(errlist)) { 3215168404Spjd char errbuf[1024]; 3216248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3217248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3218168404Spjd 3219248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3220248571Smm } 3221248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3222248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3223248571Smm char errbuf[1024]; 3224248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3225248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3226248571Smm nvpair_name(pair)); 3227168404Spjd 3228248571Smm switch (fnvpair_value_int32(pair)) { 3229168404Spjd case EEXIST: 3230248571Smm zfs_error_aux(hdl, 3231248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3232248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3233248571Smm break; 3234168404Spjd default: 3235248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3236248571Smm break; 3237168404Spjd } 3238168404Spjd } 3239168404Spjd 3240248571Smm return (ret); 3241168404Spjd} 3242168404Spjd 3243168404Spjd/* 3244168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3245168404Spjd */ 3246168404Spjdint 3247168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3248168404Spjd{ 3249168404Spjd char parent[ZFS_MAXNAMELEN]; 3250168404Spjd int ret; 3251168404Spjd char errbuf[1024]; 3252168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3253168404Spjd uint64_t zoned; 3254168404Spjd 3255168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3256168404Spjd 3257168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3258168404Spjd "cannot create '%s'"), target); 3259168404Spjd 3260228103Smm /* validate the target/clone name */ 3261185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3262168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3263168404Spjd 3264168404Spjd /* validate parents exist */ 3265185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3266168404Spjd return (-1); 3267168404Spjd 3268168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3269168404Spjd 3270168404Spjd /* do the clone */ 3271168404Spjd 3272168404Spjd if (props) { 3273248571Smm zfs_type_t type; 3274248571Smm if (ZFS_IS_VOLUME(zhp)) { 3275248571Smm type = ZFS_TYPE_VOLUME; 3276248571Smm } else { 3277248571Smm type = ZFS_TYPE_FILESYSTEM; 3278248571Smm } 3279185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3280185029Spjd zhp, errbuf)) == NULL) 3281168404Spjd return (-1); 3282168404Spjd } 3283168404Spjd 3284248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3285248571Smm nvlist_free(props); 3286168404Spjd 3287168404Spjd if (ret != 0) { 3288168404Spjd switch (errno) { 3289168404Spjd 3290168404Spjd case ENOENT: 3291168404Spjd /* 3292168404Spjd * The parent doesn't exist. We should have caught this 3293168404Spjd * above, but there may a race condition that has since 3294168404Spjd * destroyed the parent. 3295168404Spjd * 3296168404Spjd * At this point, we don't know whether it's the source 3297168404Spjd * that doesn't exist anymore, or whether the target 3298168404Spjd * dataset doesn't exist. 3299168404Spjd */ 3300168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3301168404Spjd "no such parent '%s'"), parent); 3302168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3303168404Spjd 3304168404Spjd case EXDEV: 3305168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3306168404Spjd "source and target pools differ")); 3307168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3308168404Spjd errbuf)); 3309168404Spjd 3310168404Spjd default: 3311168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3312168404Spjd errbuf)); 3313168404Spjd } 3314168404Spjd } 3315168404Spjd 3316168404Spjd return (ret); 3317168404Spjd} 3318168404Spjd 3319168404Spjd/* 3320168404Spjd * Promotes the given clone fs to be the clone parent. 3321168404Spjd */ 3322168404Spjdint 3323168404Spjdzfs_promote(zfs_handle_t *zhp) 3324168404Spjd{ 3325168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3326168404Spjd zfs_cmd_t zc = { 0 }; 3327168404Spjd char parent[MAXPATHLEN]; 3328168404Spjd int ret; 3329168404Spjd char errbuf[1024]; 3330168404Spjd 3331168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3332168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3333168404Spjd 3334168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3335168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3336168404Spjd "snapshots can not be promoted")); 3337168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3338168404Spjd } 3339168404Spjd 3340185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3341168404Spjd if (parent[0] == '\0') { 3342168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3343168404Spjd "not a cloned filesystem")); 3344168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3345168404Spjd } 3346168404Spjd 3347185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3348168404Spjd sizeof (zc.zc_value)); 3349168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3350185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3351168404Spjd 3352168404Spjd if (ret != 0) { 3353168404Spjd int save_errno = errno; 3354168404Spjd 3355168404Spjd switch (save_errno) { 3356168404Spjd case EEXIST: 3357219089Spjd /* There is a conflicting snapshot name. */ 3358168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3359219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3360219089Spjd zc.zc_string, parent); 3361168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3362168404Spjd 3363168404Spjd default: 3364168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3365168404Spjd } 3366168404Spjd } 3367168404Spjd return (ret); 3368168404Spjd} 3369168404Spjd 3370248571Smmtypedef struct snapdata { 3371248571Smm nvlist_t *sd_nvl; 3372248571Smm const char *sd_snapname; 3373248571Smm} snapdata_t; 3374248571Smm 3375248571Smmstatic int 3376248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3377248571Smm{ 3378248571Smm snapdata_t *sd = arg; 3379248571Smm char name[ZFS_MAXNAMELEN]; 3380248571Smm int rv = 0; 3381248571Smm 3382248571Smm (void) snprintf(name, sizeof (name), 3383248571Smm "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3384248571Smm 3385248571Smm fnvlist_add_boolean(sd->sd_nvl, name); 3386248571Smm 3387248571Smm rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3388248571Smm zfs_close(zhp); 3389248571Smm return (rv); 3390248571Smm} 3391248571Smm 3392168404Spjd/* 3393248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3394248571Smm * created. 3395168404Spjd */ 3396168404Spjdint 3397248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3398168404Spjd{ 3399168404Spjd int ret; 3400168404Spjd char errbuf[1024]; 3401248571Smm nvpair_t *elem; 3402248571Smm nvlist_t *errors; 3403168404Spjd 3404168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3405248571Smm "cannot create snapshots ")); 3406168404Spjd 3407248571Smm elem = NULL; 3408248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3409248571Smm const char *snapname = nvpair_name(elem); 3410168404Spjd 3411248571Smm /* validate the target name */ 3412248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3413248571Smm B_TRUE)) { 3414248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3415248571Smm dgettext(TEXT_DOMAIN, 3416248571Smm "cannot create snapshot '%s'"), snapname); 3417248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3418248571Smm } 3419248571Smm } 3420185029Spjd 3421248571Smm if (props != NULL && 3422248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3423248571Smm props, B_FALSE, NULL, errbuf)) == NULL) { 3424248571Smm return (-1); 3425248571Smm } 3426248571Smm 3427248571Smm ret = lzc_snapshot(snaps, props, &errors); 3428248571Smm 3429248571Smm if (ret != 0) { 3430248571Smm boolean_t printed = B_FALSE; 3431248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3432248571Smm elem != NULL; 3433248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3434248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3435248571Smm dgettext(TEXT_DOMAIN, 3436248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3437248571Smm (void) zfs_standard_error(hdl, 3438248571Smm fnvpair_value_int32(elem), errbuf); 3439248571Smm printed = B_TRUE; 3440185029Spjd } 3441248571Smm if (!printed) { 3442248571Smm switch (ret) { 3443248571Smm case EXDEV: 3444248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3445248571Smm "multiple snapshots of same " 3446248571Smm "fs not allowed")); 3447248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3448185029Spjd 3449248571Smm break; 3450248571Smm default: 3451248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3452248571Smm } 3453248571Smm } 3454185029Spjd } 3455185029Spjd 3456248571Smm nvlist_free(props); 3457248571Smm nvlist_free(errors); 3458248571Smm return (ret); 3459248571Smm} 3460168404Spjd 3461248571Smmint 3462248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3463248571Smm nvlist_t *props) 3464248571Smm{ 3465248571Smm int ret; 3466248571Smm snapdata_t sd = { 0 }; 3467248571Smm char fsname[ZFS_MAXNAMELEN]; 3468248571Smm char *cp; 3469248571Smm zfs_handle_t *zhp; 3470248571Smm char errbuf[1024]; 3471248571Smm 3472248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3473248571Smm "cannot snapshot %s"), path); 3474248571Smm 3475248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3476248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3477248571Smm 3478248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3479248571Smm cp = strchr(fsname, '@'); 3480248571Smm *cp = '\0'; 3481248571Smm sd.sd_snapname = cp + 1; 3482248571Smm 3483248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3484168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3485168404Spjd return (-1); 3486168404Spjd } 3487168404Spjd 3488248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3489248571Smm if (recursive) { 3490248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3491248571Smm } else { 3492248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3493168404Spjd } 3494168404Spjd 3495248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3496248571Smm nvlist_free(sd.sd_nvl); 3497168404Spjd zfs_close(zhp); 3498168404Spjd return (ret); 3499168404Spjd} 3500168404Spjd 3501168404Spjd/* 3502168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3503168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3504168404Spjd * is a dependent and we should just destroy it without checking the transaction 3505168404Spjd * group. 3506168404Spjd */ 3507168404Spjdtypedef struct rollback_data { 3508168404Spjd const char *cb_target; /* the snapshot */ 3509168404Spjd uint64_t cb_create; /* creation time reference */ 3510185029Spjd boolean_t cb_error; 3511168404Spjd boolean_t cb_dependent; 3512185029Spjd boolean_t cb_force; 3513168404Spjd} rollback_data_t; 3514168404Spjd 3515168404Spjdstatic int 3516168404Spjdrollback_destroy(zfs_handle_t *zhp, void *data) 3517168404Spjd{ 3518168404Spjd rollback_data_t *cbp = data; 3519168404Spjd 3520168404Spjd if (!cbp->cb_dependent) { 3521168404Spjd if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && 3522168404Spjd zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3523168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3524168404Spjd cbp->cb_create) { 3525168404Spjd 3526168404Spjd cbp->cb_dependent = B_TRUE; 3527185029Spjd cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3528185029Spjd rollback_destroy, cbp); 3529168404Spjd cbp->cb_dependent = B_FALSE; 3530168404Spjd 3531219089Spjd cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3532168404Spjd } 3533168404Spjd } else { 3534185029Spjd /* We must destroy this clone; first unmount it */ 3535185029Spjd prop_changelist_t *clp; 3536185029Spjd 3537185029Spjd clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3538185029Spjd cbp->cb_force ? MS_FORCE: 0); 3539185029Spjd if (clp == NULL || changelist_prefix(clp) != 0) { 3540185029Spjd cbp->cb_error = B_TRUE; 3541185029Spjd zfs_close(zhp); 3542185029Spjd return (0); 3543185029Spjd } 3544219089Spjd if (zfs_destroy(zhp, B_FALSE) != 0) 3545185029Spjd cbp->cb_error = B_TRUE; 3546168404Spjd else 3547185029Spjd changelist_remove(clp, zhp->zfs_name); 3548185029Spjd (void) changelist_postfix(clp); 3549185029Spjd changelist_free(clp); 3550168404Spjd } 3551168404Spjd 3552168404Spjd zfs_close(zhp); 3553168404Spjd return (0); 3554168404Spjd} 3555168404Spjd 3556168404Spjd/* 3557168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3558168404Spjd * data changes since then and making it the active dataset. 3559168404Spjd * 3560168404Spjd * Any snapshots more recent than the target are destroyed, along with 3561168404Spjd * their dependents. 3562168404Spjd */ 3563168404Spjdint 3564185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3565168404Spjd{ 3566168404Spjd rollback_data_t cb = { 0 }; 3567185029Spjd int err; 3568185029Spjd zfs_cmd_t zc = { 0 }; 3569185029Spjd boolean_t restore_resv = 0; 3570185029Spjd uint64_t old_volsize, new_volsize; 3571185029Spjd zfs_prop_t resv_prop; 3572168404Spjd 3573185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3574185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3575168404Spjd 3576168404Spjd /* 3577239774Smm * Destroy all recent snapshots and their dependents. 3578168404Spjd */ 3579185029Spjd cb.cb_force = force; 3580168404Spjd cb.cb_target = snap->zfs_name; 3581168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3582168404Spjd (void) zfs_iter_children(zhp, rollback_destroy, &cb); 3583168404Spjd 3584185029Spjd if (cb.cb_error) 3585185029Spjd return (-1); 3586168404Spjd 3587168404Spjd /* 3588168404Spjd * Now that we have verified that the snapshot is the latest, 3589168404Spjd * rollback to the given snapshot. 3590168404Spjd */ 3591168404Spjd 3592185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3593185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3594185029Spjd return (-1); 3595185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3596185029Spjd restore_resv = 3597185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3598168404Spjd } 3599168404Spjd 3600185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3601185029Spjd 3602185029Spjd if (ZFS_IS_VOLUME(zhp)) 3603185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3604185029Spjd else 3605185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3606185029Spjd 3607168404Spjd /* 3608185029Spjd * We rely on zfs_iter_children() to verify that there are no 3609185029Spjd * newer snapshots for the given dataset. Therefore, we can 3610185029Spjd * simply pass the name on to the ioctl() call. There is still 3611185029Spjd * an unlikely race condition where the user has taken a 3612185029Spjd * snapshot since we verified that this was the most recent. 3613185029Spjd * 3614168404Spjd */ 3615185029Spjd if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { 3616185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3617185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3618185029Spjd zhp->zfs_name); 3619185029Spjd return (err); 3620185029Spjd } 3621168404Spjd 3622185029Spjd /* 3623185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3624185029Spjd * rollback reservation and the volsize has changed then set 3625185029Spjd * the reservation property to the post-rollback volsize. 3626185029Spjd * Make a new handle since the rollback closed the dataset. 3627185029Spjd */ 3628185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3629185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3630185029Spjd if (restore_resv) { 3631185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3632185029Spjd if (old_volsize != new_volsize) 3633185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3634185029Spjd new_volsize); 3635185029Spjd } 3636185029Spjd zfs_close(zhp); 3637185029Spjd } 3638185029Spjd return (err); 3639168404Spjd} 3640168404Spjd 3641168404Spjd/* 3642168404Spjd * Renames the given dataset. 3643168404Spjd */ 3644168404Spjdint 3645240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3646240870Spjd renameflags_t flags) 3647168404Spjd{ 3648168404Spjd int ret; 3649168404Spjd zfs_cmd_t zc = { 0 }; 3650168404Spjd char *delim; 3651168676Spjd prop_changelist_t *cl = NULL; 3652168676Spjd zfs_handle_t *zhrp = NULL; 3653168676Spjd char *parentname = NULL; 3654168404Spjd char parent[ZFS_MAXNAMELEN]; 3655226676Spjd char property[ZFS_MAXPROPLEN]; 3656168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3657168404Spjd char errbuf[1024]; 3658168404Spjd 3659168404Spjd /* if we have the same exact name, just return success */ 3660168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3661168404Spjd return (0); 3662168404Spjd 3663168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3664168404Spjd "cannot rename to '%s'"), target); 3665168404Spjd 3666240870Spjd if (source != NULL) { 3667240870Spjd /* 3668240870Spjd * This is recursive snapshots rename, put snapshot name 3669240870Spjd * (that might not exist) into zfs_name. 3670240870Spjd */ 3671240870Spjd assert(flags.recurse); 3672240870Spjd 3673240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3674240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3675240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3676240870Spjd } 3677240870Spjd 3678168404Spjd /* 3679168404Spjd * Make sure the target name is valid 3680168404Spjd */ 3681168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3682168404Spjd if ((strchr(target, '@') == NULL) || 3683168404Spjd *target == '@') { 3684168404Spjd /* 3685168404Spjd * Snapshot target name is abbreviated, 3686168404Spjd * reconstruct full dataset name 3687168404Spjd */ 3688168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3689168404Spjd sizeof (parent)); 3690168404Spjd delim = strchr(parent, '@'); 3691168404Spjd if (strchr(target, '@') == NULL) 3692168404Spjd *(++delim) = '\0'; 3693168404Spjd else 3694168404Spjd *delim = '\0'; 3695168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3696168404Spjd target = parent; 3697168404Spjd } else { 3698168404Spjd /* 3699168404Spjd * Make sure we're renaming within the same dataset. 3700168404Spjd */ 3701168404Spjd delim = strchr(target, '@'); 3702168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3703168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3704168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3705168404Spjd "snapshots must be part of same " 3706168404Spjd "dataset")); 3707168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3708168404Spjd errbuf)); 3709168404Spjd } 3710168404Spjd } 3711185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3712168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3713168404Spjd } else { 3714226705Spjd if (flags.recurse) { 3715168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3716168676Spjd "recursive rename must be a snapshot")); 3717168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3718168676Spjd } 3719168676Spjd 3720185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3721168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3722168404Spjd 3723168404Spjd /* validate parents */ 3724219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3725168404Spjd return (-1); 3726168404Spjd 3727168404Spjd /* make sure we're in the same pool */ 3728168404Spjd verify((delim = strchr(target, '/')) != NULL); 3729168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3730168404Spjd zhp->zfs_name[delim - target] != '/') { 3731168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3732168404Spjd "datasets must be within same pool")); 3733168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3734168404Spjd } 3735168404Spjd 3736168404Spjd /* new name cannot be a child of the current dataset name */ 3737219089Spjd if (is_descendant(zhp->zfs_name, target)) { 3738168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3739219089Spjd "New dataset name cannot be a descendant of " 3740168404Spjd "current dataset name")); 3741168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3742168404Spjd } 3743168404Spjd } 3744168404Spjd 3745168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 3746168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 3747168404Spjd 3748168404Spjd if (getzoneid() == GLOBAL_ZONEID && 3749168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 3750168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3751168404Spjd "dataset is used in a non-global zone")); 3752168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 3753168404Spjd } 3754168404Spjd 3755226705Spjd /* 3756226705Spjd * Avoid unmounting file systems with mountpoint property set to 3757226705Spjd * 'legacy' or 'none' even if -u option is not given. 3758226705Spjd */ 3759226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 3760226705Spjd !flags.recurse && !flags.nounmount && 3761226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 3762226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 3763226705Spjd (strcmp(property, "legacy") == 0 || 3764226705Spjd strcmp(property, "none") == 0)) { 3765226705Spjd flags.nounmount = B_TRUE; 3766226705Spjd } 3767168404Spjd 3768226705Spjd if (flags.recurse) { 3769226705Spjd 3770185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 3771185029Spjd if (parentname == NULL) { 3772185029Spjd ret = -1; 3773185029Spjd goto error; 3774185029Spjd } 3775168676Spjd delim = strchr(parentname, '@'); 3776168676Spjd *delim = '\0'; 3777185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 3778168676Spjd if (zhrp == NULL) { 3779185029Spjd ret = -1; 3780185029Spjd goto error; 3781168676Spjd } 3782168676Spjd 3783168676Spjd } else { 3784226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 3785235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 3786235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 3787168676Spjd return (-1); 3788226676Spjd } 3789168676Spjd 3790168676Spjd if (changelist_haszonedchild(cl)) { 3791168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3792168676Spjd "child dataset with inherited mountpoint is used " 3793168676Spjd "in a non-global zone")); 3794168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 3795168676Spjd goto error; 3796168676Spjd } 3797168676Spjd 3798168676Spjd if ((ret = changelist_prefix(cl)) != 0) 3799168676Spjd goto error; 3800168404Spjd } 3801168404Spjd 3802168404Spjd if (ZFS_IS_VOLUME(zhp)) 3803168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3804168404Spjd else 3805168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3806168404Spjd 3807168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3808168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 3809168404Spjd 3810226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 3811226705Spjd if (flags.nounmount) 3812226676Spjd zc.zc_cookie |= 2; 3813168676Spjd 3814185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 3815168676Spjd /* 3816168676Spjd * if it was recursive, the one that actually failed will 3817168676Spjd * be in zc.zc_name 3818168676Spjd */ 3819168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3820185029Spjd "cannot rename '%s'"), zc.zc_name); 3821168404Spjd 3822226705Spjd if (flags.recurse && errno == EEXIST) { 3823168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3824168676Spjd "a child dataset already has a snapshot " 3825168676Spjd "with the new name")); 3826185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3827168676Spjd } else { 3828168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 3829168676Spjd } 3830168676Spjd 3831168404Spjd /* 3832168404Spjd * On failure, we still want to remount any filesystems that 3833168404Spjd * were previously mounted, so we don't alter the system state. 3834168404Spjd */ 3835226705Spjd if (!flags.recurse) 3836168676Spjd (void) changelist_postfix(cl); 3837168404Spjd } else { 3838226705Spjd if (!flags.recurse) { 3839168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 3840168676Spjd ret = changelist_postfix(cl); 3841168676Spjd } 3842168404Spjd } 3843168404Spjd 3844168404Spjderror: 3845168676Spjd if (parentname) { 3846168676Spjd free(parentname); 3847168676Spjd } 3848168676Spjd if (zhrp) { 3849168676Spjd zfs_close(zhrp); 3850168676Spjd } 3851168676Spjd if (cl) { 3852168676Spjd changelist_free(cl); 3853168676Spjd } 3854168404Spjd return (ret); 3855168404Spjd} 3856168404Spjd 3857219089Spjdnvlist_t * 3858219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 3859168404Spjd{ 3860219089Spjd return (zhp->zfs_user_props); 3861168676Spjd} 3862168676Spjd 3863168404Spjdnvlist_t * 3864219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 3865168404Spjd{ 3866219089Spjd if (zhp->zfs_recvd_props == NULL) 3867219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 3868219089Spjd return (NULL); 3869219089Spjd return (zhp->zfs_recvd_props); 3870168404Spjd} 3871168404Spjd 3872168404Spjd/* 3873168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 3874168404Spjd * display, and their maximum widths. This does two main things: 3875168404Spjd * 3876168404Spjd * - If this is a list of all properties, then expand the list to include 3877168404Spjd * all native properties, and set a flag so that for each dataset we look 3878168404Spjd * for new unique user properties and add them to the list. 3879168404Spjd * 3880168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 3881219089Spjd * so that we can size the column appropriately. If the user has 3882219089Spjd * requested received property values, we also need to compute the width 3883219089Spjd * of the RECEIVED column. 3884168404Spjd */ 3885168404Spjdint 3886219089Spjdzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) 3887168404Spjd{ 3888168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3889185029Spjd zprop_list_t *entry; 3890185029Spjd zprop_list_t **last, **start; 3891168404Spjd nvlist_t *userprops, *propval; 3892168404Spjd nvpair_t *elem; 3893168404Spjd char *strval; 3894168404Spjd char buf[ZFS_MAXPROPLEN]; 3895168404Spjd 3896185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 3897168404Spjd return (-1); 3898168404Spjd 3899168404Spjd userprops = zfs_get_user_props(zhp); 3900168404Spjd 3901168404Spjd entry = *plp; 3902168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 3903168404Spjd /* 3904168404Spjd * Go through and add any user properties as necessary. We 3905168404Spjd * start by incrementing our list pointer to the first 3906168404Spjd * non-native property. 3907168404Spjd */ 3908168404Spjd start = plp; 3909168404Spjd while (*start != NULL) { 3910185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 3911168404Spjd break; 3912168404Spjd start = &(*start)->pl_next; 3913168404Spjd } 3914168404Spjd 3915168404Spjd elem = NULL; 3916168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 3917168404Spjd /* 3918168404Spjd * See if we've already found this property in our list. 3919168404Spjd */ 3920168404Spjd for (last = start; *last != NULL; 3921168404Spjd last = &(*last)->pl_next) { 3922168404Spjd if (strcmp((*last)->pl_user_prop, 3923168404Spjd nvpair_name(elem)) == 0) 3924168404Spjd break; 3925168404Spjd } 3926168404Spjd 3927168404Spjd if (*last == NULL) { 3928168404Spjd if ((entry = zfs_alloc(hdl, 3929185029Spjd sizeof (zprop_list_t))) == NULL || 3930168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 3931168404Spjd nvpair_name(elem)))) == NULL) { 3932168404Spjd free(entry); 3933168404Spjd return (-1); 3934168404Spjd } 3935168404Spjd 3936185029Spjd entry->pl_prop = ZPROP_INVAL; 3937168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 3938168404Spjd entry->pl_all = B_TRUE; 3939168404Spjd *last = entry; 3940168404Spjd } 3941168404Spjd } 3942168404Spjd } 3943168404Spjd 3944168404Spjd /* 3945168404Spjd * Now go through and check the width of any non-fixed columns 3946168404Spjd */ 3947168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 3948168404Spjd if (entry->pl_fixed) 3949168404Spjd continue; 3950168404Spjd 3951185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 3952168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 3953168404Spjd buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { 3954168404Spjd if (strlen(buf) > entry->pl_width) 3955168404Spjd entry->pl_width = strlen(buf); 3956168404Spjd } 3957219089Spjd if (received && zfs_prop_get_recvd(zhp, 3958219089Spjd zfs_prop_to_name(entry->pl_prop), 3959219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3960219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3961219089Spjd entry->pl_recvd_width = strlen(buf); 3962219089Spjd } else { 3963219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 3964219089Spjd &propval) == 0) { 3965219089Spjd verify(nvlist_lookup_string(propval, 3966219089Spjd ZPROP_VALUE, &strval) == 0); 3967219089Spjd if (strlen(strval) > entry->pl_width) 3968219089Spjd entry->pl_width = strlen(strval); 3969219089Spjd } 3970219089Spjd if (received && zfs_prop_get_recvd(zhp, 3971219089Spjd entry->pl_user_prop, 3972219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3973219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3974219089Spjd entry->pl_recvd_width = strlen(buf); 3975168404Spjd } 3976168404Spjd } 3977168404Spjd 3978168404Spjd return (0); 3979168404Spjd} 3980168404Spjd 3981185029Spjdint 3982185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 3983209962Smm char *resource, void *export, void *sharetab, 3984209962Smm int sharemax, zfs_share_op_t operation) 3985185029Spjd{ 3986185029Spjd zfs_cmd_t zc = { 0 }; 3987185029Spjd int error; 3988185029Spjd 3989185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 3990185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 3991209962Smm if (resource) 3992209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 3993185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 3994185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 3995185029Spjd zc.zc_share.z_sharetype = operation; 3996185029Spjd zc.zc_share.z_sharemax = sharemax; 3997185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 3998185029Spjd return (error); 3999185029Spjd} 4000185029Spjd 4001205198Sdelphijvoid 4002205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4003205198Sdelphij{ 4004205198Sdelphij nvpair_t *curr; 4005205198Sdelphij 4006205198Sdelphij /* 4007205198Sdelphij * Keep a reference to the props-table against which we prune the 4008205198Sdelphij * properties. 4009205198Sdelphij */ 4010205198Sdelphij zhp->zfs_props_table = props; 4011205198Sdelphij 4012205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4013205198Sdelphij 4014205198Sdelphij while (curr) { 4015205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4016205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4017205198Sdelphij 4018206199Sdelphij /* 4019219089Spjd * User properties will result in ZPROP_INVAL, and since we 4020219089Spjd * only know how to prune standard ZFS properties, we always 4021219089Spjd * leave these in the list. This can also happen if we 4022219089Spjd * encounter an unknown DSL property (when running older 4023219089Spjd * software, for example). 4024206199Sdelphij */ 4025206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4026205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4027205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4028205198Sdelphij curr = next; 4029205198Sdelphij } 4030205198Sdelphij} 4031205198Sdelphij 4032209962Smm#ifdef sun 4033209962Smmstatic int 4034209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4035209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4036209962Smm{ 4037209962Smm zfs_cmd_t zc = { 0 }; 4038209962Smm nvlist_t *nvlist = NULL; 4039209962Smm int error; 4040209962Smm 4041209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4042209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4043209962Smm zc.zc_cookie = (uint64_t)cmd; 4044209962Smm 4045209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4046209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4047209962Smm (void) no_memory(hdl); 4048209962Smm return (NULL); 4049209962Smm } 4050209962Smm } 4051209962Smm 4052209962Smm switch (cmd) { 4053209962Smm case ZFS_SMB_ACL_ADD: 4054209962Smm case ZFS_SMB_ACL_REMOVE: 4055209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4056209962Smm break; 4057209962Smm case ZFS_SMB_ACL_RENAME: 4058209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4059209962Smm resource1) != 0) { 4060209962Smm (void) no_memory(hdl); 4061209962Smm return (-1); 4062209962Smm } 4063209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4064209962Smm resource2) != 0) { 4065209962Smm (void) no_memory(hdl); 4066209962Smm return (-1); 4067209962Smm } 4068209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4069209962Smm nvlist_free(nvlist); 4070209962Smm return (-1); 4071209962Smm } 4072209962Smm break; 4073209962Smm case ZFS_SMB_ACL_PURGE: 4074209962Smm break; 4075209962Smm default: 4076209962Smm return (-1); 4077209962Smm } 4078209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4079209962Smm if (nvlist) 4080209962Smm nvlist_free(nvlist); 4081209962Smm return (error); 4082209962Smm} 4083209962Smm 4084209962Smmint 4085209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4086209962Smm char *path, char *resource) 4087209962Smm{ 4088209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4089209962Smm resource, NULL)); 4090209962Smm} 4091209962Smm 4092209962Smmint 4093209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4094209962Smm char *path, char *resource) 4095209962Smm{ 4096209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4097209962Smm resource, NULL)); 4098209962Smm} 4099209962Smm 4100209962Smmint 4101209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4102209962Smm{ 4103209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4104209962Smm NULL, NULL)); 4105209962Smm} 4106209962Smm 4107209962Smmint 4108209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4109209962Smm char *oldname, char *newname) 4110209962Smm{ 4111209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4112209962Smm oldname, newname)); 4113209962Smm} 4114209962Smm#endif /* sun */ 4115209962Smm 4116209962Smmint 4117209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4118209962Smm zfs_userspace_cb_t func, void *arg) 4119209962Smm{ 4120209962Smm zfs_cmd_t zc = { 0 }; 4121209962Smm zfs_useracct_t buf[100]; 4122240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4123240415Smm int ret; 4124209962Smm 4125228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4126209962Smm 4127209962Smm zc.zc_objset_type = type; 4128209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4129209962Smm 4130240415Smm for (;;) { 4131209962Smm zfs_useracct_t *zua = buf; 4132209962Smm 4133209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4134240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4135248571Smm char errbuf[1024]; 4136240415Smm 4137240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4138240415Smm dgettext(TEXT_DOMAIN, 4139240415Smm "cannot get used/quota for %s"), zc.zc_name); 4140240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4141240415Smm } 4142240415Smm if (zc.zc_nvlist_dst_size == 0) 4143209962Smm break; 4144209962Smm 4145209962Smm while (zc.zc_nvlist_dst_size > 0) { 4146240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4147240415Smm zua->zu_space)) != 0) 4148240415Smm return (ret); 4149209962Smm zua++; 4150209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4151209962Smm } 4152209962Smm } 4153209962Smm 4154240415Smm return (0); 4155209962Smm} 4156209962Smm 4157248571Smmstruct holdarg { 4158248571Smm nvlist_t *nvl; 4159248571Smm const char *snapname; 4160248571Smm const char *tag; 4161248571Smm boolean_t recursive; 4162248571Smm}; 4163248571Smm 4164248571Smmstatic int 4165248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4166248571Smm{ 4167248571Smm struct holdarg *ha = arg; 4168248571Smm char name[ZFS_MAXNAMELEN]; 4169248571Smm int rv = 0; 4170248571Smm 4171248571Smm (void) snprintf(name, sizeof (name), 4172248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4173248571Smm 4174251646Sdelphij if (lzc_exists(name)) 4175248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4176248571Smm 4177248571Smm if (ha->recursive) 4178248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4179248571Smm zfs_close(zhp); 4180248571Smm return (rv); 4181248571Smm} 4182248571Smm 4183219089Spjdint 4184219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4185251646Sdelphij boolean_t recursive, int cleanup_fd) 4186219089Spjd{ 4187248571Smm int ret; 4188248571Smm struct holdarg ha; 4189219089Spjd 4190248571Smm ha.nvl = fnvlist_alloc(); 4191248571Smm ha.snapname = snapname; 4192248571Smm ha.tag = tag; 4193248571Smm ha.recursive = recursive; 4194248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4195249357Smm 4196251646Sdelphij if (nvlist_empty(ha.nvl)) { 4197251646Sdelphij char errbuf[1024]; 4198251646Sdelphij 4199249357Smm fnvlist_free(ha.nvl); 4200249357Smm ret = ENOENT; 4201251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4202251646Sdelphij dgettext(TEXT_DOMAIN, 4203251646Sdelphij "cannot hold snapshot '%s@%s'"), 4204251646Sdelphij zhp->zfs_name, snapname); 4205251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4206249357Smm return (ret); 4207249357Smm } 4208249357Smm 4209251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4210248571Smm fnvlist_free(ha.nvl); 4211219089Spjd 4212251646Sdelphij return (ret); 4213251646Sdelphij} 4214251646Sdelphij 4215251646Sdelphijint 4216251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4217251646Sdelphij{ 4218251646Sdelphij int ret; 4219251646Sdelphij nvlist_t *errors; 4220251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4221251646Sdelphij char errbuf[1024]; 4222251646Sdelphij nvpair_t *elem; 4223251646Sdelphij 4224251646Sdelphij errors = NULL; 4225251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4226251646Sdelphij 4227251646Sdelphij if (ret == 0) { 4228251646Sdelphij /* There may be errors even in the success case. */ 4229251646Sdelphij fnvlist_free(errors); 4230248571Smm return (0); 4231251646Sdelphij } 4232219089Spjd 4233251646Sdelphij if (nvlist_empty(errors)) { 4234248571Smm /* no hold-specific errors */ 4235248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4236248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4237248571Smm switch (ret) { 4238248571Smm case ENOTSUP: 4239248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4240248571Smm "pool must be upgraded")); 4241248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4242248571Smm break; 4243248571Smm case EINVAL: 4244248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4245248571Smm break; 4246248571Smm default: 4247248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4248248571Smm } 4249248571Smm } 4250219089Spjd 4251248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4252248571Smm elem != NULL; 4253248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4254248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4255248571Smm dgettext(TEXT_DOMAIN, 4256248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4257248571Smm switch (fnvpair_value_int32(elem)) { 4258219089Spjd case E2BIG: 4259219089Spjd /* 4260219089Spjd * Temporary tags wind up having the ds object id 4261219089Spjd * prepended. So even if we passed the length check 4262219089Spjd * above, it's still possible for the tag to wind 4263219089Spjd * up being slightly too long. 4264219089Spjd */ 4265248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4266248571Smm break; 4267219089Spjd case EINVAL: 4268248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4269248571Smm break; 4270219089Spjd case EEXIST: 4271248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4272248571Smm break; 4273219089Spjd default: 4274248571Smm (void) zfs_standard_error(hdl, 4275248571Smm fnvpair_value_int32(elem), errbuf); 4276219089Spjd } 4277219089Spjd } 4278219089Spjd 4279248571Smm fnvlist_free(errors); 4280248571Smm return (ret); 4281219089Spjd} 4282219089Spjd 4283248571Smmstatic int 4284248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4285248571Smm{ 4286248571Smm struct holdarg *ha = arg; 4287248571Smm char name[ZFS_MAXNAMELEN]; 4288248571Smm int rv = 0; 4289248571Smm 4290248571Smm (void) snprintf(name, sizeof (name), 4291248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4292248571Smm 4293251646Sdelphij if (lzc_exists(name)) { 4294248571Smm nvlist_t *holds = fnvlist_alloc(); 4295248571Smm fnvlist_add_boolean(holds, ha->tag); 4296248571Smm fnvlist_add_nvlist(ha->nvl, name, holds); 4297251646Sdelphij fnvlist_free(holds); 4298248571Smm } 4299248571Smm 4300248571Smm if (ha->recursive) 4301248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4302248571Smm zfs_close(zhp); 4303248571Smm return (rv); 4304248571Smm} 4305248571Smm 4306219089Spjdint 4307219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4308219089Spjd boolean_t recursive) 4309219089Spjd{ 4310248571Smm int ret; 4311248571Smm struct holdarg ha; 4312251646Sdelphij nvlist_t *errors = NULL; 4313248571Smm nvpair_t *elem; 4314219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4315249357Smm char errbuf[1024]; 4316219089Spjd 4317248571Smm ha.nvl = fnvlist_alloc(); 4318248571Smm ha.snapname = snapname; 4319248571Smm ha.tag = tag; 4320248571Smm ha.recursive = recursive; 4321248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4322249357Smm 4323251646Sdelphij if (nvlist_empty(ha.nvl)) { 4324249357Smm fnvlist_free(ha.nvl); 4325249357Smm ret = ENOENT; 4326249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4327249357Smm dgettext(TEXT_DOMAIN, 4328249357Smm "cannot release hold from snapshot '%s@%s'"), 4329249357Smm zhp->zfs_name, snapname); 4330249357Smm (void) zfs_standard_error(hdl, ret, errbuf); 4331249357Smm return (ret); 4332249357Smm } 4333249357Smm 4334248571Smm ret = lzc_release(ha.nvl, &errors); 4335248571Smm fnvlist_free(ha.nvl); 4336219089Spjd 4337251646Sdelphij if (ret == 0) { 4338251646Sdelphij /* There may be errors even in the success case. */ 4339251646Sdelphij fnvlist_free(errors); 4340248571Smm return (0); 4341251646Sdelphij } 4342219089Spjd 4343251646Sdelphij if (nvlist_empty(errors)) { 4344248571Smm /* no hold-specific errors */ 4345219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4346248571Smm "cannot release")); 4347219089Spjd switch (errno) { 4348219089Spjd case ENOTSUP: 4349219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4350219089Spjd "pool must be upgraded")); 4351248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4352248571Smm break; 4353248571Smm default: 4354248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4355248571Smm } 4356248571Smm } 4357248571Smm 4358248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4359248571Smm elem != NULL; 4360248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4361248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4362248571Smm dgettext(TEXT_DOMAIN, 4363248571Smm "cannot release hold from snapshot '%s'"), 4364248571Smm nvpair_name(elem)); 4365248571Smm switch (fnvpair_value_int32(elem)) { 4366248571Smm case ESRCH: 4367248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4368248571Smm break; 4369219089Spjd case EINVAL: 4370248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4371248571Smm break; 4372219089Spjd default: 4373248571Smm (void) zfs_standard_error_fmt(hdl, 4374248571Smm fnvpair_value_int32(elem), errbuf); 4375219089Spjd } 4376219089Spjd } 4377219089Spjd 4378248571Smm fnvlist_free(errors); 4379248571Smm return (ret); 4380219089Spjd} 4381219089Spjd 4382219089Spjdint 4383219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4384219089Spjd{ 4385219089Spjd zfs_cmd_t zc = { 0 }; 4386219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4387219089Spjd int nvsz = 2048; 4388219089Spjd void *nvbuf; 4389219089Spjd int err = 0; 4390248571Smm char errbuf[1024]; 4391219089Spjd 4392219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4393219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4394219089Spjd 4395219089Spjdtryagain: 4396219089Spjd 4397219089Spjd nvbuf = malloc(nvsz); 4398219089Spjd if (nvbuf == NULL) { 4399219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4400219089Spjd goto out; 4401219089Spjd } 4402219089Spjd 4403219089Spjd zc.zc_nvlist_dst_size = nvsz; 4404219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4405219089Spjd 4406219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4407219089Spjd 4408230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4409219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4410219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4411219089Spjd zc.zc_name); 4412219089Spjd switch (errno) { 4413219089Spjd case ENOMEM: 4414219089Spjd free(nvbuf); 4415219089Spjd nvsz = zc.zc_nvlist_dst_size; 4416219089Spjd goto tryagain; 4417219089Spjd 4418219089Spjd case ENOTSUP: 4419219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4420219089Spjd "pool must be upgraded")); 4421219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4422219089Spjd break; 4423219089Spjd case EINVAL: 4424219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4425219089Spjd break; 4426219089Spjd case ENOENT: 4427219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4428219089Spjd break; 4429219089Spjd default: 4430219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4431219089Spjd break; 4432219089Spjd } 4433219089Spjd } else { 4434219089Spjd /* success */ 4435219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4436219089Spjd if (rc) { 4437219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4438219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4439219089Spjd zc.zc_name); 4440219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4441219089Spjd } 4442219089Spjd } 4443219089Spjd 4444219089Spjd free(nvbuf); 4445219089Spjdout: 4446219089Spjd return (err); 4447219089Spjd} 4448219089Spjd 4449219089Spjdint 4450219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4451219089Spjd{ 4452219089Spjd zfs_cmd_t zc = { 0 }; 4453219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4454219089Spjd char *nvbuf; 4455248571Smm char errbuf[1024]; 4456219089Spjd size_t nvsz; 4457219089Spjd int err; 4458219089Spjd 4459219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4460219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4461219089Spjd 4462219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4463219089Spjd assert(err == 0); 4464219089Spjd 4465219089Spjd nvbuf = malloc(nvsz); 4466219089Spjd 4467219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4468219089Spjd assert(err == 0); 4469219089Spjd 4470219089Spjd zc.zc_nvlist_src_size = nvsz; 4471219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4472219089Spjd zc.zc_perm_action = un; 4473219089Spjd 4474219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4475219089Spjd 4476219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4477219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4478219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4479219089Spjd zc.zc_name); 4480219089Spjd switch (errno) { 4481219089Spjd case ENOTSUP: 4482219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4483219089Spjd "pool must be upgraded")); 4484219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4485219089Spjd break; 4486219089Spjd case EINVAL: 4487219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4488219089Spjd break; 4489219089Spjd case ENOENT: 4490219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4491219089Spjd break; 4492219089Spjd default: 4493219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4494219089Spjd break; 4495219089Spjd } 4496219089Spjd } 4497219089Spjd 4498219089Spjd free(nvbuf); 4499219089Spjd 4500219089Spjd return (err); 4501219089Spjd} 4502219089Spjd 4503219089Spjdint 4504219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4505219089Spjd{ 4506248571Smm int err; 4507248571Smm char errbuf[1024]; 4508219089Spjd 4509248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4510219089Spjd 4511248571Smm if (err != 0) { 4512248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4513219089Spjd 4514219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4515219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4516248571Smm zhp->zfs_name); 4517248571Smm switch (err) { 4518219089Spjd case ENOTSUP: 4519219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4520219089Spjd "pool must be upgraded")); 4521219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4522219089Spjd break; 4523219089Spjd case EINVAL: 4524219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4525219089Spjd break; 4526219089Spjd case ENOENT: 4527219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4528219089Spjd break; 4529219089Spjd default: 4530219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4531219089Spjd break; 4532219089Spjd } 4533219089Spjd } 4534219089Spjd 4535219089Spjd return (err); 4536219089Spjd} 4537219089Spjd 4538251629Sdelphij/* 4539251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4540251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4541251629Sdelphij * suite's shell version in reservation.kshlib. 4542251629Sdelphij */ 4543219089Spjduint64_t 4544219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4545219089Spjd{ 4546219089Spjd uint64_t numdb; 4547219089Spjd uint64_t nblocks, volblocksize; 4548219089Spjd int ncopies; 4549219089Spjd char *strval; 4550219089Spjd 4551219089Spjd if (nvlist_lookup_string(props, 4552219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4553219089Spjd ncopies = atoi(strval); 4554219089Spjd else 4555219089Spjd ncopies = 1; 4556219089Spjd if (nvlist_lookup_uint64(props, 4557219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4558219089Spjd &volblocksize) != 0) 4559219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4560219089Spjd nblocks = volsize/volblocksize; 4561219089Spjd /* start with metadnode L0-L6 */ 4562219089Spjd numdb = 7; 4563219089Spjd /* calculate number of indirects */ 4564219089Spjd while (nblocks > 1) { 4565219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4566219089Spjd nblocks /= DNODES_PER_LEVEL; 4567219089Spjd numdb += nblocks; 4568219089Spjd } 4569219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4570219089Spjd volsize *= ncopies; 4571219089Spjd /* 4572219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4573219089Spjd * compressed, but in practice they compress down to about 4574219089Spjd * 1100 bytes 4575219089Spjd */ 4576219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4577219089Spjd volsize += numdb; 4578219089Spjd return (volsize); 4579219089Spjd} 4580219089Spjd 4581168404Spjd/* 4582168404Spjd * Attach/detach the given filesystem to/from the given jail. 4583168404Spjd */ 4584168404Spjdint 4585168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4586168404Spjd{ 4587168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4588168404Spjd zfs_cmd_t zc = { 0 }; 4589168404Spjd char errbuf[1024]; 4590224525Smm unsigned long cmd; 4591224525Smm int ret; 4592168404Spjd 4593168404Spjd if (attach) { 4594168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4595168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4596168404Spjd } else { 4597168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4598249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4599168404Spjd } 4600168404Spjd 4601168404Spjd switch (zhp->zfs_type) { 4602168404Spjd case ZFS_TYPE_VOLUME: 4603168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4604168404Spjd "volumes can not be jailed")); 4605168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4606168404Spjd case ZFS_TYPE_SNAPSHOT: 4607168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4608168404Spjd "snapshots can not be jailed")); 4609168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4610168404Spjd } 4611168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4612168404Spjd 4613168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4614168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4615168404Spjd zc.zc_jailid = jailid; 4616168404Spjd 4617168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4618168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4619168404Spjd zfs_standard_error(hdl, errno, errbuf); 4620168404Spjd 4621168404Spjd return (ret); 4622168404Spjd} 4623