libzfs_dataset.c revision 230438
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. 24219089Spjd * Copyright 2010 Nexenta Systems, Inc. All rights reserved. 25223623Smm * Copyright (c) 2011 by Delphix. All rights reserved. 26230438Spjd * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 27226706Spjd * All rights reserved. 28168404Spjd */ 29168404Spjd 30168404Spjd#include <ctype.h> 31168404Spjd#include <errno.h> 32168404Spjd#include <libintl.h> 33168404Spjd#include <math.h> 34168404Spjd#include <stdio.h> 35168404Spjd#include <stdlib.h> 36168404Spjd#include <strings.h> 37168404Spjd#include <unistd.h> 38185029Spjd#include <stddef.h> 39168404Spjd#include <zone.h> 40168404Spjd#include <fcntl.h> 41168404Spjd#include <sys/mntent.h> 42168404Spjd#include <sys/mount.h> 43185029Spjd#include <priv.h> 44185029Spjd#include <pwd.h> 45185029Spjd#include <grp.h> 46185029Spjd#include <stddef.h> 47209962Smm#include <idmap.h> 48168404Spjd 49219089Spjd#include <sys/dnode.h> 50168404Spjd#include <sys/spa.h> 51168404Spjd#include <sys/zap.h> 52209962Smm#include <sys/misc.h> 53168404Spjd#include <libzfs.h> 54168404Spjd 55168404Spjd#include "zfs_namecheck.h" 56168404Spjd#include "zfs_prop.h" 57168404Spjd#include "libzfs_impl.h" 58185029Spjd#include "zfs_deleg.h" 59168404Spjd 60209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 61209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 62168676Spjd 63168404Spjd/* 64168404Spjd * Given a single type (not a mask of types), return the type in a human 65168404Spjd * readable form. 66168404Spjd */ 67168404Spjdconst char * 68168404Spjdzfs_type_to_name(zfs_type_t type) 69168404Spjd{ 70168404Spjd switch (type) { 71168404Spjd case ZFS_TYPE_FILESYSTEM: 72168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 73168404Spjd case ZFS_TYPE_SNAPSHOT: 74168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 75168404Spjd case ZFS_TYPE_VOLUME: 76168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 77168404Spjd } 78168404Spjd 79168404Spjd return (NULL); 80168404Spjd} 81168404Spjd 82168404Spjd/* 83168404Spjd * Given a path and mask of ZFS types, return a string describing this dataset. 84168404Spjd * This is used when we fail to open a dataset and we cannot get an exact type. 85168404Spjd * We guess what the type would have been based on the path and the mask of 86168404Spjd * acceptable types. 87168404Spjd */ 88168404Spjdstatic const char * 89168404Spjdpath_to_str(const char *path, int types) 90168404Spjd{ 91168404Spjd /* 92168404Spjd * When given a single type, always report the exact type. 93168404Spjd */ 94168404Spjd if (types == ZFS_TYPE_SNAPSHOT) 95168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 96168404Spjd if (types == ZFS_TYPE_FILESYSTEM) 97168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 98168404Spjd if (types == ZFS_TYPE_VOLUME) 99168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 100168404Spjd 101168404Spjd /* 102168404Spjd * The user is requesting more than one type of dataset. If this is the 103168404Spjd * case, consult the path itself. If we're looking for a snapshot, and 104168404Spjd * a '@' is found, then report it as "snapshot". Otherwise, remove the 105168404Spjd * snapshot attribute and try again. 106168404Spjd */ 107168404Spjd if (types & ZFS_TYPE_SNAPSHOT) { 108168404Spjd if (strchr(path, '@') != NULL) 109168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 110168404Spjd return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); 111168404Spjd } 112168404Spjd 113168404Spjd /* 114168404Spjd * The user has requested either filesystems or volumes. 115168404Spjd * We have no way of knowing a priori what type this would be, so always 116168404Spjd * report it as "filesystem" or "volume", our two primitive types. 117168404Spjd */ 118168404Spjd if (types & ZFS_TYPE_FILESYSTEM) 119168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 120168404Spjd 121168404Spjd assert(types & ZFS_TYPE_VOLUME); 122168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 123168404Spjd} 124168404Spjd 125168404Spjd/* 126168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 127209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 128209962Smm * explain exactly why the name was not valid. 129168404Spjd */ 130219089Spjdint 131185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 132185029Spjd boolean_t modifying) 133168404Spjd{ 134168404Spjd namecheck_err_t why; 135168404Spjd char what; 136168404Spjd 137219089Spjd (void) zfs_prop_get_table(); 138168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 139168404Spjd if (hdl != NULL) { 140168404Spjd switch (why) { 141168404Spjd case NAME_ERR_TOOLONG: 142168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 143168404Spjd "name is too long")); 144168404Spjd break; 145168404Spjd 146168404Spjd case NAME_ERR_LEADING_SLASH: 147168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 148168404Spjd "leading slash in name")); 149168404Spjd break; 150168404Spjd 151168404Spjd case NAME_ERR_EMPTY_COMPONENT: 152168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 153168404Spjd "empty component in name")); 154168404Spjd break; 155168404Spjd 156168404Spjd case NAME_ERR_TRAILING_SLASH: 157168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 158168404Spjd "trailing slash in name")); 159168404Spjd break; 160168404Spjd 161168404Spjd case NAME_ERR_INVALCHAR: 162168404Spjd zfs_error_aux(hdl, 163168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 164168404Spjd "'%c' in name"), what); 165168404Spjd break; 166168404Spjd 167168404Spjd case NAME_ERR_MULTIPLE_AT: 168168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 169168404Spjd "multiple '@' delimiters in name")); 170168404Spjd break; 171168404Spjd 172168404Spjd case NAME_ERR_NOLETTER: 173168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 174168404Spjd "pool doesn't begin with a letter")); 175168404Spjd break; 176168404Spjd 177168404Spjd case NAME_ERR_RESERVED: 178168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 179168404Spjd "name is reserved")); 180168404Spjd break; 181168404Spjd 182168404Spjd case NAME_ERR_DISKLIKE: 183168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 184168404Spjd "reserved disk name")); 185168404Spjd break; 186168404Spjd } 187168404Spjd } 188168404Spjd 189168404Spjd return (0); 190168404Spjd } 191168404Spjd 192168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 193168404Spjd if (hdl != NULL) 194168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 195168404Spjd "snapshot delimiter '@' in filesystem name")); 196168404Spjd return (0); 197168404Spjd } 198168404Spjd 199168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 200168404Spjd if (hdl != NULL) 201168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 202168404Spjd "missing '@' delimiter in snapshot name")); 203168404Spjd return (0); 204168404Spjd } 205168404Spjd 206185029Spjd if (modifying && strchr(path, '%') != NULL) { 207185029Spjd if (hdl != NULL) 208185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 209185029Spjd "invalid character %c in name"), '%'); 210185029Spjd return (0); 211185029Spjd } 212185029Spjd 213168404Spjd return (-1); 214168404Spjd} 215168404Spjd 216168404Spjdint 217168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 218168404Spjd{ 219185029Spjd if (type == ZFS_TYPE_POOL) 220185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 221185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 222168404Spjd} 223168404Spjd 224168404Spjd/* 225168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 226168404Spjd * properties into a separate nvlist. 227168404Spjd */ 228185029Spjdstatic nvlist_t * 229185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 230168404Spjd{ 231168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 232168404Spjd nvpair_t *elem; 233168404Spjd nvlist_t *propval; 234185029Spjd nvlist_t *nvl; 235168404Spjd 236185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 237185029Spjd (void) no_memory(hdl); 238185029Spjd return (NULL); 239185029Spjd } 240168404Spjd 241168404Spjd elem = NULL; 242185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 243168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 244168404Spjd continue; 245168404Spjd 246168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 247185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 248185029Spjd nvlist_free(nvl); 249185029Spjd (void) no_memory(hdl); 250185029Spjd return (NULL); 251185029Spjd } 252168404Spjd } 253168404Spjd 254185029Spjd return (nvl); 255168404Spjd} 256168404Spjd 257185029Spjdstatic zpool_handle_t * 258185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 259185029Spjd{ 260185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 261185029Spjd zpool_handle_t *zph; 262185029Spjd 263185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 264185029Spjd if (hdl->libzfs_pool_handles != NULL) 265185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 266185029Spjd hdl->libzfs_pool_handles = zph; 267185029Spjd } 268185029Spjd return (zph); 269185029Spjd} 270185029Spjd 271185029Spjdstatic zpool_handle_t * 272185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 273185029Spjd{ 274185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 275185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 276185029Spjd 277185029Spjd while ((zph != NULL) && 278185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 279185029Spjd zph = zph->zpool_next; 280185029Spjd return (zph); 281185029Spjd} 282185029Spjd 283168404Spjd/* 284185029Spjd * Returns a handle to the pool that contains the provided dataset. 285185029Spjd * If a handle to that pool already exists then that handle is returned. 286185029Spjd * Otherwise, a new handle is created and added to the list of handles. 287185029Spjd */ 288185029Spjdstatic zpool_handle_t * 289185029Spjdzpool_handle(zfs_handle_t *zhp) 290185029Spjd{ 291185029Spjd char *pool_name; 292185029Spjd int len; 293185029Spjd zpool_handle_t *zph; 294185029Spjd 295185029Spjd len = strcspn(zhp->zfs_name, "/@") + 1; 296185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 297185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 298185029Spjd 299185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 300185029Spjd if (zph == NULL) 301185029Spjd zph = zpool_add_handle(zhp, pool_name); 302185029Spjd 303185029Spjd free(pool_name); 304185029Spjd return (zph); 305185029Spjd} 306185029Spjd 307185029Spjdvoid 308185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 309185029Spjd{ 310185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 311185029Spjd 312185029Spjd while (zph != NULL) { 313185029Spjd next = zph->zpool_next; 314185029Spjd zpool_close(zph); 315185029Spjd zph = next; 316185029Spjd } 317185029Spjd hdl->libzfs_pool_handles = NULL; 318185029Spjd} 319185029Spjd 320185029Spjd/* 321168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 322168404Spjd */ 323219089Spjdstatic int 324209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 325168404Spjd{ 326168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 327168404Spjd 328209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 329168404Spjd 330209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 331168404Spjd if (errno == ENOMEM) { 332209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 333168404Spjd return (-1); 334168404Spjd } 335168404Spjd } else { 336168404Spjd return (-1); 337168404Spjd } 338168404Spjd } 339209962Smm return (0); 340209962Smm} 341168404Spjd 342219089Spjd/* 343219089Spjd * Utility function to get the received properties of the given object. 344219089Spjd */ 345209962Smmstatic int 346219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 347219089Spjd{ 348219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 349219089Spjd nvlist_t *recvdprops; 350219089Spjd zfs_cmd_t zc = { 0 }; 351219089Spjd int err; 352219089Spjd 353219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 354219089Spjd return (-1); 355219089Spjd 356219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 357219089Spjd 358219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 359219089Spjd if (errno == ENOMEM) { 360219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 361219089Spjd return (-1); 362219089Spjd } 363219089Spjd } else { 364219089Spjd zcmd_free_nvlists(&zc); 365219089Spjd return (-1); 366219089Spjd } 367219089Spjd } 368219089Spjd 369219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 370219089Spjd zcmd_free_nvlists(&zc); 371219089Spjd if (err != 0) 372219089Spjd return (-1); 373219089Spjd 374219089Spjd nvlist_free(zhp->zfs_recvd_props); 375219089Spjd zhp->zfs_recvd_props = recvdprops; 376219089Spjd 377219089Spjd return (0); 378219089Spjd} 379219089Spjd 380219089Spjdstatic int 381209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 382209962Smm{ 383209962Smm nvlist_t *allprops, *userprops; 384168404Spjd 385209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 386209962Smm 387209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 388168404Spjd return (-1); 389168404Spjd } 390168404Spjd 391209962Smm /* 392209962Smm * XXX Why do we store the user props separately, in addition to 393209962Smm * storing them in zfs_props? 394209962Smm */ 395185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 396185029Spjd nvlist_free(allprops); 397168404Spjd return (-1); 398185029Spjd } 399168404Spjd 400185029Spjd nvlist_free(zhp->zfs_props); 401185029Spjd nvlist_free(zhp->zfs_user_props); 402185029Spjd 403185029Spjd zhp->zfs_props = allprops; 404185029Spjd zhp->zfs_user_props = userprops; 405185029Spjd 406168404Spjd return (0); 407168404Spjd} 408168404Spjd 409209962Smmstatic int 410209962Smmget_stats(zfs_handle_t *zhp) 411209962Smm{ 412209962Smm int rc = 0; 413209962Smm zfs_cmd_t zc = { 0 }; 414209962Smm 415209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 416209962Smm return (-1); 417209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 418209962Smm rc = -1; 419209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 420209962Smm rc = -1; 421209962Smm zcmd_free_nvlists(&zc); 422209962Smm return (rc); 423209962Smm} 424209962Smm 425168404Spjd/* 426168404Spjd * Refresh the properties currently stored in the handle. 427168404Spjd */ 428168404Spjdvoid 429168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 430168404Spjd{ 431168404Spjd (void) get_stats(zhp); 432168404Spjd} 433168404Spjd 434168404Spjd/* 435168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 436168404Spjd * zfs_iter_* to create child handles on the fly. 437168404Spjd */ 438209962Smmstatic int 439209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 440168404Spjd{ 441219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 442209962Smm return (-1); 443168404Spjd 444168404Spjd /* 445168404Spjd * We've managed to open the dataset and gather statistics. Determine 446168404Spjd * the high-level type. 447168404Spjd */ 448168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 449168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 450168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 451168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 452168404Spjd else 453168404Spjd abort(); 454168404Spjd 455168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 456168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 457168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 458168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 459168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 460168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 461168404Spjd else 462168404Spjd abort(); /* we should never see any other types */ 463168404Spjd 464219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 465219089Spjd return (-1); 466219089Spjd 467209962Smm return (0); 468209962Smm} 469209962Smm 470209962Smmzfs_handle_t * 471209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 472209962Smm{ 473209962Smm zfs_cmd_t zc = { 0 }; 474209962Smm 475209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 476209962Smm 477209962Smm if (zhp == NULL) 478209962Smm return (NULL); 479209962Smm 480209962Smm zhp->zfs_hdl = hdl; 481209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 482209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 483209962Smm free(zhp); 484209962Smm return (NULL); 485209962Smm } 486209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 487209962Smm zcmd_free_nvlists(&zc); 488209962Smm free(zhp); 489209962Smm return (NULL); 490209962Smm } 491209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 492209962Smm free(zhp); 493209962Smm zhp = NULL; 494209962Smm } 495209962Smm zcmd_free_nvlists(&zc); 496168404Spjd return (zhp); 497168404Spjd} 498168404Spjd 499228103Smmzfs_handle_t * 500209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 501209962Smm{ 502209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 503209962Smm 504209962Smm if (zhp == NULL) 505209962Smm return (NULL); 506209962Smm 507209962Smm zhp->zfs_hdl = hdl; 508209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 509209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 510209962Smm free(zhp); 511209962Smm return (NULL); 512209962Smm } 513209962Smm return (zhp); 514209962Smm} 515209962Smm 516228103Smmzfs_handle_t * 517230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 518230438Spjd{ 519230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 520230438Spjd 521230438Spjd if (zhp == NULL) 522230438Spjd return (NULL); 523230438Spjd 524230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 525230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 526230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 527230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 528230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 529230438Spjd return (zhp); 530230438Spjd} 531230438Spjd 532230438Spjdzfs_handle_t * 533228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 534228103Smm{ 535228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 536228103Smm 537228103Smm if (zhp == NULL) 538228103Smm return (NULL); 539228103Smm 540228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 541228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 542228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 543228103Smm sizeof (zhp->zfs_name)); 544228103Smm zhp->zfs_type = zhp_orig->zfs_type; 545228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 546228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 547228103Smm if (zhp_orig->zfs_props != NULL) { 548228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 549228103Smm (void) no_memory(zhp->zfs_hdl); 550228103Smm zfs_close(zhp); 551228103Smm return (NULL); 552228103Smm } 553228103Smm } 554228103Smm if (zhp_orig->zfs_user_props != NULL) { 555228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 556228103Smm &zhp->zfs_user_props, 0) != 0) { 557228103Smm (void) no_memory(zhp->zfs_hdl); 558228103Smm zfs_close(zhp); 559228103Smm return (NULL); 560228103Smm } 561228103Smm } 562228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 563228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 564228103Smm &zhp->zfs_recvd_props, 0)) { 565228103Smm (void) no_memory(zhp->zfs_hdl); 566228103Smm zfs_close(zhp); 567228103Smm return (NULL); 568228103Smm } 569228103Smm } 570228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 571228103Smm if (zhp_orig->zfs_mntopts != NULL) { 572228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 573228103Smm zhp_orig->zfs_mntopts); 574228103Smm } 575228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 576228103Smm return (zhp); 577228103Smm} 578228103Smm 579168404Spjd/* 580168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 581168404Spjd * argument is a mask of acceptable types. The function will print an 582168404Spjd * appropriate error message and return NULL if it can't be opened. 583168404Spjd */ 584168404Spjdzfs_handle_t * 585168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 586168404Spjd{ 587168404Spjd zfs_handle_t *zhp; 588168404Spjd char errbuf[1024]; 589168404Spjd 590168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 591168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 592168404Spjd 593168404Spjd /* 594168404Spjd * Validate the name before we even try to open it. 595168404Spjd */ 596185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 597168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 598168404Spjd "invalid dataset name")); 599168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 600168404Spjd return (NULL); 601168404Spjd } 602168404Spjd 603168404Spjd /* 604168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 605168404Spjd */ 606168404Spjd errno = 0; 607168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 608168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 609168404Spjd return (NULL); 610168404Spjd } 611168404Spjd 612168404Spjd if (!(types & zhp->zfs_type)) { 613168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 614168404Spjd zfs_close(zhp); 615168404Spjd return (NULL); 616168404Spjd } 617168404Spjd 618168404Spjd return (zhp); 619168404Spjd} 620168404Spjd 621168404Spjd/* 622168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 623168404Spjd */ 624168404Spjdvoid 625168404Spjdzfs_close(zfs_handle_t *zhp) 626168404Spjd{ 627168404Spjd if (zhp->zfs_mntopts) 628168404Spjd free(zhp->zfs_mntopts); 629168404Spjd nvlist_free(zhp->zfs_props); 630168404Spjd nvlist_free(zhp->zfs_user_props); 631219089Spjd nvlist_free(zhp->zfs_recvd_props); 632168404Spjd free(zhp); 633168404Spjd} 634168404Spjd 635209962Smmtypedef struct mnttab_node { 636209962Smm struct mnttab mtn_mt; 637209962Smm avl_node_t mtn_node; 638209962Smm} mnttab_node_t; 639209962Smm 640209962Smmstatic int 641209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 642209962Smm{ 643209962Smm const mnttab_node_t *mtn1 = arg1; 644209962Smm const mnttab_node_t *mtn2 = arg2; 645209962Smm int rv; 646209962Smm 647209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 648209962Smm 649209962Smm if (rv == 0) 650209962Smm return (0); 651209962Smm return (rv > 0 ? 1 : -1); 652209962Smm} 653209962Smm 654209962Smmvoid 655209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 656209962Smm{ 657209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 658209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 659209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 660209962Smm} 661209962Smm 662209962Smmvoid 663209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 664209962Smm{ 665209962Smm struct mnttab entry; 666209962Smm 667209962Smm rewind(hdl->libzfs_mnttab); 668209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 669209962Smm mnttab_node_t *mtn; 670209962Smm 671209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 672209962Smm continue; 673209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 674209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 675209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 676209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 677209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 678209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 679209962Smm } 680209962Smm} 681209962Smm 682209962Smmvoid 683209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 684209962Smm{ 685209962Smm void *cookie = NULL; 686209962Smm mnttab_node_t *mtn; 687209962Smm 688209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 689209962Smm free(mtn->mtn_mt.mnt_special); 690209962Smm free(mtn->mtn_mt.mnt_mountp); 691209962Smm free(mtn->mtn_mt.mnt_fstype); 692209962Smm free(mtn->mtn_mt.mnt_mntopts); 693209962Smm free(mtn); 694209962Smm } 695209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 696209962Smm} 697209962Smm 698209962Smmvoid 699209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 700209962Smm{ 701209962Smm hdl->libzfs_mnttab_enable = enable; 702209962Smm} 703209962Smm 704185029Spjdint 705209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 706209962Smm struct mnttab *entry) 707209962Smm{ 708209962Smm mnttab_node_t find; 709209962Smm mnttab_node_t *mtn; 710209962Smm 711209962Smm if (!hdl->libzfs_mnttab_enable) { 712209962Smm struct mnttab srch = { 0 }; 713209962Smm 714209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 715209962Smm libzfs_mnttab_fini(hdl); 716209962Smm rewind(hdl->libzfs_mnttab); 717209962Smm srch.mnt_special = (char *)fsname; 718209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 719209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 720209962Smm return (0); 721209962Smm else 722209962Smm return (ENOENT); 723209962Smm } 724209962Smm 725209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 726209962Smm libzfs_mnttab_update(hdl); 727209962Smm 728209962Smm find.mtn_mt.mnt_special = (char *)fsname; 729209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 730209962Smm if (mtn) { 731209962Smm *entry = mtn->mtn_mt; 732209962Smm return (0); 733209962Smm } 734209962Smm return (ENOENT); 735209962Smm} 736209962Smm 737209962Smmvoid 738209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 739209962Smm const char *mountp, const char *mntopts) 740209962Smm{ 741209962Smm mnttab_node_t *mtn; 742209962Smm 743209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 744209962Smm return; 745209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 746209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 747209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 748209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 749209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 750209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 751209962Smm} 752209962Smm 753209962Smmvoid 754209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 755209962Smm{ 756209962Smm mnttab_node_t find; 757209962Smm mnttab_node_t *ret; 758209962Smm 759209962Smm find.mtn_mt.mnt_special = (char *)fsname; 760209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 761209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 762209962Smm free(ret->mtn_mt.mnt_special); 763209962Smm free(ret->mtn_mt.mnt_mountp); 764209962Smm free(ret->mtn_mt.mnt_fstype); 765209962Smm free(ret->mtn_mt.mnt_mntopts); 766209962Smm free(ret); 767209962Smm } 768209962Smm} 769209962Smm 770209962Smmint 771185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 772168404Spjd{ 773185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 774168404Spjd 775185029Spjd if (zpool_handle == NULL) 776168404Spjd return (-1); 777168404Spjd 778185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 779185029Spjd ZPOOL_PROP_VERSION, NULL); 780168404Spjd return (0); 781168404Spjd} 782168404Spjd 783168404Spjd/* 784185029Spjd * The choice of reservation property depends on the SPA version. 785168404Spjd */ 786168404Spjdstatic int 787185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 788168404Spjd{ 789185029Spjd int spa_version; 790168404Spjd 791185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 792168404Spjd return (-1); 793168404Spjd 794185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 795185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 796185029Spjd else 797185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 798168404Spjd 799168404Spjd return (0); 800168404Spjd} 801168404Spjd 802168404Spjd/* 803168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 804168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 805168404Spjd * strings. 806168404Spjd */ 807168404Spjdnvlist_t * 808185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 809185029Spjd uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) 810168404Spjd{ 811168404Spjd nvpair_t *elem; 812168404Spjd uint64_t intval; 813168404Spjd char *strval; 814185029Spjd zfs_prop_t prop; 815168404Spjd nvlist_t *ret; 816185029Spjd int chosen_normal = -1; 817185029Spjd int chosen_utf = -1; 818168404Spjd 819168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 820168404Spjd (void) no_memory(hdl); 821168404Spjd return (NULL); 822168404Spjd } 823168404Spjd 824209962Smm /* 825209962Smm * Make sure this property is valid and applies to this type. 826209962Smm */ 827209962Smm 828168404Spjd elem = NULL; 829168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 830185029Spjd const char *propname = nvpair_name(elem); 831168404Spjd 832209962Smm prop = zfs_name_to_prop(propname); 833209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 834185029Spjd /* 835209962Smm * This is a user property: make sure it's a 836185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 837185029Spjd */ 838185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 839185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 840185029Spjd "'%s' must be a string"), propname); 841185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 842185029Spjd goto error; 843168404Spjd } 844168404Spjd 845185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 846185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 847185029Spjd "property name '%s' is too long"), 848185029Spjd propname); 849185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 850185029Spjd goto error; 851185029Spjd } 852185029Spjd 853168404Spjd (void) nvpair_value_string(elem, &strval); 854168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 855168404Spjd (void) no_memory(hdl); 856168404Spjd goto error; 857168404Spjd } 858168404Spjd continue; 859168404Spjd } 860168404Spjd 861209962Smm /* 862209962Smm * Currently, only user properties can be modified on 863209962Smm * snapshots. 864209962Smm */ 865185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 866185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 867185029Spjd "this property can not be modified for snapshots")); 868185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 869185029Spjd goto error; 870185029Spjd } 871168404Spjd 872209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 873209962Smm zfs_userquota_prop_t uqtype; 874209962Smm char newpropname[128]; 875209962Smm char domain[128]; 876209962Smm uint64_t rid; 877209962Smm uint64_t valary[3]; 878209962Smm 879209962Smm if (userquota_propname_decode(propname, zoned, 880209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 881209962Smm zfs_error_aux(hdl, 882209962Smm dgettext(TEXT_DOMAIN, 883209962Smm "'%s' has an invalid user/group name"), 884209962Smm propname); 885209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 886209962Smm goto error; 887209962Smm } 888209962Smm 889209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 890209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 891209962Smm zfs_error_aux(hdl, 892209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 893209962Smm propname); 894209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 895209962Smm errbuf); 896209962Smm goto error; 897209962Smm } 898209962Smm 899209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 900209962Smm (void) nvpair_value_string(elem, &strval); 901209962Smm if (strcmp(strval, "none") == 0) { 902209962Smm intval = 0; 903209962Smm } else if (zfs_nicestrtonum(hdl, 904209962Smm strval, &intval) != 0) { 905209962Smm (void) zfs_error(hdl, 906209962Smm EZFS_BADPROP, errbuf); 907209962Smm goto error; 908209962Smm } 909209962Smm } else if (nvpair_type(elem) == 910209962Smm DATA_TYPE_UINT64) { 911209962Smm (void) nvpair_value_uint64(elem, &intval); 912209962Smm if (intval == 0) { 913209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 914209962Smm "use 'none' to disable " 915209962Smm "userquota/groupquota")); 916209962Smm goto error; 917209962Smm } 918209962Smm } else { 919209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 920209962Smm "'%s' must be a number"), propname); 921209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 922209962Smm goto error; 923209962Smm } 924209962Smm 925219089Spjd /* 926219089Spjd * Encode the prop name as 927219089Spjd * userquota@<hex-rid>-domain, to make it easy 928219089Spjd * for the kernel to decode. 929219089Spjd */ 930209962Smm (void) snprintf(newpropname, sizeof (newpropname), 931219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 932219089Spjd (longlong_t)rid, domain); 933209962Smm valary[0] = uqtype; 934209962Smm valary[1] = rid; 935209962Smm valary[2] = intval; 936209962Smm if (nvlist_add_uint64_array(ret, newpropname, 937209962Smm valary, 3) != 0) { 938209962Smm (void) no_memory(hdl); 939209962Smm goto error; 940209962Smm } 941209962Smm continue; 942228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 943228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 944228103Smm "'%s' is readonly"), 945228103Smm propname); 946228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 947228103Smm goto error; 948209962Smm } 949209962Smm 950209962Smm if (prop == ZPROP_INVAL) { 951209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 952209962Smm "invalid property '%s'"), propname); 953209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 954209962Smm goto error; 955209962Smm } 956209962Smm 957168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 958168404Spjd zfs_error_aux(hdl, 959168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 960168404Spjd "apply to datasets of this type"), propname); 961168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 962168404Spjd goto error; 963168404Spjd } 964168404Spjd 965168404Spjd if (zfs_prop_readonly(prop) && 966185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 967168404Spjd zfs_error_aux(hdl, 968168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 969168404Spjd propname); 970168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 971168404Spjd goto error; 972168404Spjd } 973168404Spjd 974185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 975185029Spjd &strval, &intval, errbuf) != 0) 976185029Spjd goto error; 977185029Spjd 978168404Spjd /* 979185029Spjd * Perform some additional checks for specific properties. 980168404Spjd */ 981185029Spjd switch (prop) { 982185029Spjd case ZFS_PROP_VERSION: 983185029Spjd { 984185029Spjd int version; 985168404Spjd 986185029Spjd if (zhp == NULL) 987185029Spjd break; 988185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 989185029Spjd if (intval < version) { 990168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 991185029Spjd "Can not downgrade; already at version %u"), 992185029Spjd version); 993168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 994168404Spjd goto error; 995168404Spjd } 996168404Spjd break; 997168404Spjd } 998168404Spjd 999168404Spjd case ZFS_PROP_RECORDSIZE: 1000168404Spjd case ZFS_PROP_VOLBLOCKSIZE: 1001168404Spjd /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ 1002168404Spjd if (intval < SPA_MINBLOCKSIZE || 1003168404Spjd intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { 1004168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1005168404Spjd "'%s' must be power of 2 from %u " 1006168404Spjd "to %uk"), propname, 1007168404Spjd (uint_t)SPA_MINBLOCKSIZE, 1008168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 1009168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1010168404Spjd goto error; 1011168404Spjd } 1012168404Spjd break; 1013168404Spjd 1014219089Spjd case ZFS_PROP_MLSLABEL: 1015219089Spjd { 1016219089Spjd#ifdef sun 1017219089Spjd /* 1018219089Spjd * Verify the mlslabel string and convert to 1019219089Spjd * internal hex label string. 1020219089Spjd */ 1021219089Spjd 1022219089Spjd m_label_t *new_sl; 1023219089Spjd char *hex = NULL; /* internal label string */ 1024219089Spjd 1025219089Spjd /* Default value is already OK. */ 1026219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1027219089Spjd break; 1028219089Spjd 1029219089Spjd /* Verify the label can be converted to binary form */ 1030219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1031219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1032219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1033219089Spjd goto badlabel; 1034168404Spjd } 1035168404Spjd 1036219089Spjd /* Now translate to hex internal label string */ 1037219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1038219089Spjd DEF_NAMES) != 0) { 1039219089Spjd if (hex) 1040219089Spjd free(hex); 1041219089Spjd goto badlabel; 1042219089Spjd } 1043219089Spjd m_label_free(new_sl); 1044219089Spjd 1045219089Spjd /* If string is already in internal form, we're done. */ 1046219089Spjd if (strcmp(strval, hex) == 0) { 1047219089Spjd free(hex); 1048219089Spjd break; 1049219089Spjd } 1050219089Spjd 1051219089Spjd /* Replace the label string with the internal form. */ 1052219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1053219089Spjd DATA_TYPE_STRING); 1054219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1055219089Spjd hex) == 0); 1056219089Spjd free(hex); 1057219089Spjd 1058168404Spjd break; 1059168404Spjd 1060219089Spjdbadlabel: 1061219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1062219089Spjd "invalid mlslabel '%s'"), strval); 1063219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1064219089Spjd m_label_free(new_sl); /* OK if null */ 1065219089Spjd#else /* !sun */ 1066219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1067219089Spjd "mlslabel is not supported on FreeBSD")); 1068219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1069219089Spjd#endif /* !sun */ 1070219089Spjd goto error; 1071219089Spjd 1072219089Spjd } 1073219089Spjd 1074168404Spjd case ZFS_PROP_MOUNTPOINT: 1075185029Spjd { 1076185029Spjd namecheck_err_t why; 1077185029Spjd 1078168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1079168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1080168404Spjd break; 1081168404Spjd 1082185029Spjd if (mountpoint_namecheck(strval, &why)) { 1083185029Spjd switch (why) { 1084185029Spjd case NAME_ERR_LEADING_SLASH: 1085185029Spjd zfs_error_aux(hdl, 1086185029Spjd dgettext(TEXT_DOMAIN, 1087185029Spjd "'%s' must be an absolute path, " 1088185029Spjd "'none', or 'legacy'"), propname); 1089185029Spjd break; 1090185029Spjd case NAME_ERR_TOOLONG: 1091185029Spjd zfs_error_aux(hdl, 1092185029Spjd dgettext(TEXT_DOMAIN, 1093185029Spjd "component of '%s' is too long"), 1094185029Spjd propname); 1095185029Spjd break; 1096185029Spjd } 1097168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1098168404Spjd goto error; 1099168404Spjd } 1100185029Spjd } 1101185029Spjd 1102168404Spjd /*FALLTHRU*/ 1103168404Spjd 1104185029Spjd case ZFS_PROP_SHARESMB: 1105168404Spjd case ZFS_PROP_SHARENFS: 1106168404Spjd /* 1107185029Spjd * For the mountpoint and sharenfs or sharesmb 1108185029Spjd * properties, check if it can be set in a 1109185029Spjd * global/non-global zone based on 1110168404Spjd * the zoned property value: 1111168404Spjd * 1112168404Spjd * global zone non-global zone 1113168404Spjd * -------------------------------------------------- 1114168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1115168404Spjd * sharenfs (no) sharenfs (no) 1116185029Spjd * sharesmb (no) sharesmb (no) 1117168404Spjd * 1118168404Spjd * zoned=off mountpoint (yes) N/A 1119168404Spjd * sharenfs (yes) 1120185029Spjd * sharesmb (yes) 1121168404Spjd */ 1122168404Spjd if (zoned) { 1123168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1124168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1125168404Spjd "'%s' cannot be set on " 1126168404Spjd "dataset in a non-global zone"), 1127168404Spjd propname); 1128168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1129168404Spjd errbuf); 1130168404Spjd goto error; 1131185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1132185029Spjd prop == ZFS_PROP_SHARESMB) { 1133168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1134168404Spjd "'%s' cannot be set in " 1135168404Spjd "a non-global zone"), propname); 1136168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1137168404Spjd errbuf); 1138168404Spjd goto error; 1139168404Spjd } 1140168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1141168404Spjd /* 1142168404Spjd * If zoned property is 'off', this must be in 1143209962Smm * a global zone. If not, something is wrong. 1144168404Spjd */ 1145168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1146168404Spjd "'%s' cannot be set while dataset " 1147168404Spjd "'zoned' property is set"), propname); 1148168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1149168404Spjd goto error; 1150168404Spjd } 1151168404Spjd 1152168404Spjd /* 1153185029Spjd * At this point, it is legitimate to set the 1154185029Spjd * property. Now we want to make sure that the 1155185029Spjd * property value is valid if it is sharenfs. 1156168404Spjd */ 1157185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1158185029Spjd prop == ZFS_PROP_SHARESMB) && 1159185029Spjd strcmp(strval, "on") != 0 && 1160185029Spjd strcmp(strval, "off") != 0) { 1161185029Spjd zfs_share_proto_t proto; 1162168404Spjd 1163185029Spjd if (prop == ZFS_PROP_SHARESMB) 1164185029Spjd proto = PROTO_SMB; 1165185029Spjd else 1166185029Spjd proto = PROTO_NFS; 1167185029Spjd 1168185029Spjd /* 1169185029Spjd * Must be an valid sharing protocol 1170185029Spjd * option string so init the libshare 1171185029Spjd * in order to enable the parser and 1172185029Spjd * then parse the options. We use the 1173185029Spjd * control API since we don't care about 1174185029Spjd * the current configuration and don't 1175185029Spjd * want the overhead of loading it 1176185029Spjd * until we actually do something. 1177185029Spjd */ 1178185029Spjd 1179185029Spjd if (zfs_init_libshare(hdl, 1180185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1181185029Spjd /* 1182185029Spjd * An error occurred so we can't do 1183185029Spjd * anything 1184185029Spjd */ 1185185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1186185029Spjd "'%s' cannot be set: problem " 1187185029Spjd "in share initialization"), 1188185029Spjd propname); 1189185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1190185029Spjd errbuf); 1191185029Spjd goto error; 1192185029Spjd } 1193185029Spjd 1194185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1195185029Spjd /* 1196185029Spjd * There was an error in parsing so 1197185029Spjd * deal with it by issuing an error 1198185029Spjd * message and leaving after 1199185029Spjd * uninitializing the the libshare 1200185029Spjd * interface. 1201185029Spjd */ 1202185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1203185029Spjd "'%s' cannot be set to invalid " 1204185029Spjd "options"), propname); 1205185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1206185029Spjd errbuf); 1207185029Spjd zfs_uninit_libshare(hdl); 1208185029Spjd goto error; 1209185029Spjd } 1210185029Spjd zfs_uninit_libshare(hdl); 1211168404Spjd } 1212185029Spjd 1213168404Spjd break; 1214185029Spjd case ZFS_PROP_UTF8ONLY: 1215185029Spjd chosen_utf = (int)intval; 1216185029Spjd break; 1217185029Spjd case ZFS_PROP_NORMALIZE: 1218185029Spjd chosen_normal = (int)intval; 1219185029Spjd break; 1220168404Spjd } 1221168404Spjd 1222168404Spjd /* 1223168404Spjd * For changes to existing volumes, we have some additional 1224168404Spjd * checks to enforce. 1225168404Spjd */ 1226168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1227168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1228168404Spjd ZFS_PROP_VOLSIZE); 1229168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1230168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1231168404Spjd char buf[64]; 1232168404Spjd 1233168404Spjd switch (prop) { 1234168404Spjd case ZFS_PROP_RESERVATION: 1235185029Spjd case ZFS_PROP_REFRESERVATION: 1236168404Spjd if (intval > volsize) { 1237168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1238168404Spjd "'%s' is greater than current " 1239168404Spjd "volume size"), propname); 1240168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1241168404Spjd errbuf); 1242168404Spjd goto error; 1243168404Spjd } 1244168404Spjd break; 1245168404Spjd 1246168404Spjd case ZFS_PROP_VOLSIZE: 1247168404Spjd if (intval % blocksize != 0) { 1248168404Spjd zfs_nicenum(blocksize, buf, 1249168404Spjd sizeof (buf)); 1250168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1251168404Spjd "'%s' must be a multiple of " 1252168404Spjd "volume block size (%s)"), 1253168404Spjd propname, buf); 1254168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1255168404Spjd errbuf); 1256168404Spjd goto error; 1257168404Spjd } 1258168404Spjd 1259168404Spjd if (intval == 0) { 1260168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1261168404Spjd "'%s' cannot be zero"), 1262168404Spjd propname); 1263168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1264168404Spjd errbuf); 1265168404Spjd goto error; 1266168404Spjd } 1267168404Spjd break; 1268168404Spjd } 1269168404Spjd } 1270168404Spjd } 1271168404Spjd 1272168404Spjd /* 1273185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1274185029Spjd * enforce rejection of non-UTF8 names. 1275185029Spjd * 1276185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1277185029Spjd * was explicitly not chosen, it is an error. 1278185029Spjd */ 1279185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1280185029Spjd if (nvlist_add_uint64(ret, 1281185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1282185029Spjd (void) no_memory(hdl); 1283185029Spjd goto error; 1284185029Spjd } 1285185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1286185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1287185029Spjd "'%s' must be set 'on' if normalization chosen"), 1288185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1289185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1290185029Spjd goto error; 1291185029Spjd } 1292219089Spjd return (ret); 1293185029Spjd 1294219089Spjderror: 1295219089Spjd nvlist_free(ret); 1296219089Spjd return (NULL); 1297219089Spjd} 1298219089Spjd 1299219089Spjdint 1300219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1301219089Spjd{ 1302219089Spjd uint64_t old_volsize; 1303219089Spjd uint64_t new_volsize; 1304219089Spjd uint64_t old_reservation; 1305219089Spjd uint64_t new_reservation; 1306219089Spjd zfs_prop_t resv_prop; 1307219089Spjd 1308185029Spjd /* 1309168404Spjd * If this is an existing volume, and someone is setting the volsize, 1310168404Spjd * make sure that it matches the reservation, or add it if necessary. 1311168404Spjd */ 1312219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1313219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1314219089Spjd return (-1); 1315219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1316219089Spjd if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != 1317219089Spjd old_reservation) || nvlist_lookup_uint64(nvl, 1318219089Spjd zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { 1319219089Spjd return (0); 1320219089Spjd } 1321219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1322219089Spjd &new_volsize) != 0) 1323219089Spjd return (-1); 1324219089Spjd new_reservation = zvol_volsize_to_reservation(new_volsize, 1325219089Spjd zhp->zfs_props); 1326219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1327219089Spjd new_reservation) != 0) { 1328219089Spjd (void) no_memory(zhp->zfs_hdl); 1329219089Spjd return (-1); 1330219089Spjd } 1331219089Spjd return (1); 1332219089Spjd} 1333168404Spjd 1334219089Spjdvoid 1335219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1336219089Spjd char *errbuf) 1337219089Spjd{ 1338219089Spjd switch (err) { 1339185029Spjd 1340219089Spjd case ENOSPC: 1341219089Spjd /* 1342219089Spjd * For quotas and reservations, ENOSPC indicates 1343219089Spjd * something different; setting a quota or reservation 1344219089Spjd * doesn't use any disk space. 1345219089Spjd */ 1346219089Spjd switch (prop) { 1347219089Spjd case ZFS_PROP_QUOTA: 1348219089Spjd case ZFS_PROP_REFQUOTA: 1349219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1350219089Spjd "size is less than current used or " 1351219089Spjd "reserved space")); 1352219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1353219089Spjd break; 1354219089Spjd 1355219089Spjd case ZFS_PROP_RESERVATION: 1356219089Spjd case ZFS_PROP_REFRESERVATION: 1357219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1358219089Spjd "size is greater than available space")); 1359219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1360219089Spjd break; 1361219089Spjd 1362219089Spjd default: 1363219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1364219089Spjd break; 1365168404Spjd } 1366219089Spjd break; 1367219089Spjd 1368219089Spjd case EBUSY: 1369219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1370219089Spjd break; 1371219089Spjd 1372219089Spjd case EROFS: 1373219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1374219089Spjd break; 1375219089Spjd 1376219089Spjd case ENOTSUP: 1377219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1378219089Spjd "pool and or dataset must be upgraded to set this " 1379219089Spjd "property or value")); 1380219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1381219089Spjd break; 1382219089Spjd 1383219089Spjd case ERANGE: 1384219089Spjd if (prop == ZFS_PROP_COMPRESSION) { 1385219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1386219089Spjd "property setting is not allowed on " 1387219089Spjd "bootable datasets")); 1388219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1389219089Spjd } else { 1390219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1391219089Spjd } 1392219089Spjd break; 1393219089Spjd 1394219089Spjd case EINVAL: 1395219089Spjd if (prop == ZPROP_INVAL) { 1396219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1397219089Spjd } else { 1398219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1399219089Spjd } 1400219089Spjd break; 1401219089Spjd 1402219089Spjd case EOVERFLOW: 1403219089Spjd /* 1404219089Spjd * This platform can't address a volume this big. 1405219089Spjd */ 1406219089Spjd#ifdef _ILP32 1407219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1408219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1409219089Spjd break; 1410219089Spjd } 1411219089Spjd#endif 1412219089Spjd /* FALLTHROUGH */ 1413219089Spjd default: 1414219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1415168404Spjd } 1416168404Spjd} 1417168404Spjd 1418168404Spjd/* 1419168404Spjd * Given a property name and value, set the property for the given dataset. 1420168404Spjd */ 1421168404Spjdint 1422168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1423168404Spjd{ 1424168404Spjd zfs_cmd_t zc = { 0 }; 1425168404Spjd int ret = -1; 1426168404Spjd prop_changelist_t *cl = NULL; 1427168404Spjd char errbuf[1024]; 1428168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1429168404Spjd nvlist_t *nvl = NULL, *realprops; 1430168404Spjd zfs_prop_t prop; 1431185029Spjd boolean_t do_prefix; 1432185029Spjd uint64_t idx; 1433219089Spjd int added_resv; 1434168404Spjd 1435168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1436168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1437168404Spjd zhp->zfs_name); 1438168404Spjd 1439168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1440168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1441168404Spjd (void) no_memory(hdl); 1442168404Spjd goto error; 1443168404Spjd } 1444168404Spjd 1445185029Spjd if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, 1446168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) 1447168404Spjd goto error; 1448185029Spjd 1449168404Spjd nvlist_free(nvl); 1450168404Spjd nvl = realprops; 1451168404Spjd 1452168404Spjd prop = zfs_name_to_prop(propname); 1453168404Spjd 1454168404Spjd /* We don't support those properties on FreeBSD. */ 1455168404Spjd switch (prop) { 1456197867Strasz case ZFS_PROP_DEVICES: 1457168404Spjd case ZFS_PROP_ISCSIOPTIONS: 1458197867Strasz case ZFS_PROP_XATTR: 1459197867Strasz case ZFS_PROP_VSCAN: 1460197867Strasz case ZFS_PROP_NBMAND: 1461219089Spjd case ZFS_PROP_MLSLABEL: 1462168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1463168404Spjd "property '%s' not supported on FreeBSD", propname); 1464168404Spjd ret = zfs_error(hdl, EZFS_PERM, errbuf); 1465168404Spjd goto error; 1466168404Spjd } 1467168404Spjd 1468219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1469219089Spjd if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) 1470219089Spjd goto error; 1471219089Spjd } 1472219089Spjd 1473185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1474168404Spjd goto error; 1475168404Spjd 1476168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1477168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1478168404Spjd "child dataset with inherited mountpoint is used " 1479168404Spjd "in a non-global zone")); 1480168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1481168404Spjd goto error; 1482168404Spjd } 1483168404Spjd 1484185029Spjd /* 1485185029Spjd * If the dataset's canmount property is being set to noauto, 1486185029Spjd * then we want to prevent unmounting & remounting it. 1487185029Spjd */ 1488185029Spjd do_prefix = !((prop == ZFS_PROP_CANMOUNT) && 1489185029Spjd (zprop_string_to_index(prop, propval, &idx, 1490185029Spjd ZFS_TYPE_DATASET) == 0) && (idx == ZFS_CANMOUNT_NOAUTO)); 1491185029Spjd 1492185029Spjd if (do_prefix && (ret = changelist_prefix(cl)) != 0) 1493168404Spjd goto error; 1494168404Spjd 1495168404Spjd /* 1496168404Spjd * Execute the corresponding ioctl() to set this property. 1497168404Spjd */ 1498168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1499168404Spjd 1500185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1501168404Spjd goto error; 1502168404Spjd 1503185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1504209962Smm 1505168404Spjd if (ret != 0) { 1506219089Spjd zfs_setprop_error(hdl, prop, errno, errbuf); 1507219089Spjd if (added_resv && errno == ENOSPC) { 1508219089Spjd /* clean up the volsize property we tried to set */ 1509219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1510219089Spjd ZFS_PROP_VOLSIZE); 1511219089Spjd nvlist_free(nvl); 1512219089Spjd zcmd_free_nvlists(&zc); 1513219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1514219089Spjd goto error; 1515219089Spjd if (nvlist_add_uint64(nvl, 1516219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1517219089Spjd old_volsize) != 0) 1518219089Spjd goto error; 1519219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1520219089Spjd goto error; 1521219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1522168404Spjd } 1523168404Spjd } else { 1524185029Spjd if (do_prefix) 1525185029Spjd ret = changelist_postfix(cl); 1526185029Spjd 1527168404Spjd /* 1528168404Spjd * Refresh the statistics so the new property value 1529168404Spjd * is reflected. 1530168404Spjd */ 1531185029Spjd if (ret == 0) 1532168404Spjd (void) get_stats(zhp); 1533168404Spjd } 1534168404Spjd 1535168404Spjderror: 1536168404Spjd nvlist_free(nvl); 1537168404Spjd zcmd_free_nvlists(&zc); 1538168404Spjd if (cl) 1539168404Spjd changelist_free(cl); 1540168404Spjd return (ret); 1541168404Spjd} 1542168404Spjd 1543168404Spjd/* 1544219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1545219089Spjd * is TRUE, revert to the received value, if any. 1546168404Spjd */ 1547168404Spjdint 1548219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1549168404Spjd{ 1550168404Spjd zfs_cmd_t zc = { 0 }; 1551168404Spjd int ret; 1552168404Spjd prop_changelist_t *cl; 1553168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1554168404Spjd char errbuf[1024]; 1555168404Spjd zfs_prop_t prop; 1556168404Spjd 1557168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1558168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1559168404Spjd 1560219089Spjd zc.zc_cookie = received; 1561185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1562168404Spjd /* 1563168404Spjd * For user properties, the amount of work we have to do is very 1564168404Spjd * small, so just do it here. 1565168404Spjd */ 1566168404Spjd if (!zfs_prop_user(propname)) { 1567168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1568168404Spjd "invalid property")); 1569168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1570168404Spjd } 1571168404Spjd 1572168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1573168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1574168404Spjd 1575185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1576168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1577168404Spjd 1578168404Spjd return (0); 1579168404Spjd } 1580168404Spjd 1581168404Spjd /* 1582168404Spjd * Verify that this property is inheritable. 1583168404Spjd */ 1584168404Spjd if (zfs_prop_readonly(prop)) 1585168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1586168404Spjd 1587219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1588168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1589168404Spjd 1590168404Spjd /* 1591168404Spjd * Check to see if the value applies to this type 1592168404Spjd */ 1593168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1594168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1595168404Spjd 1596168404Spjd /* 1597219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1598168404Spjd */ 1599168404Spjd propname = zfs_prop_to_name(prop); 1600168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1601168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1602168404Spjd 1603168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1604168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1605168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1606168404Spjd "dataset is used in a non-global zone")); 1607168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1608168404Spjd } 1609168404Spjd 1610168404Spjd /* 1611168404Spjd * Determine datasets which will be affected by this change, if any. 1612168404Spjd */ 1613185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1614168404Spjd return (-1); 1615168404Spjd 1616168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1617168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1618168404Spjd "child dataset with inherited mountpoint is used " 1619168404Spjd "in a non-global zone")); 1620168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1621168404Spjd goto error; 1622168404Spjd } 1623168404Spjd 1624168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1625168404Spjd goto error; 1626168404Spjd 1627185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1628168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1629168404Spjd } else { 1630168404Spjd 1631168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1632168404Spjd goto error; 1633168404Spjd 1634168404Spjd /* 1635168404Spjd * Refresh the statistics so the new property is reflected. 1636168404Spjd */ 1637168404Spjd (void) get_stats(zhp); 1638168404Spjd } 1639168404Spjd 1640168404Spjderror: 1641168404Spjd changelist_free(cl); 1642168404Spjd return (ret); 1643168404Spjd} 1644168404Spjd 1645168404Spjd/* 1646168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1647168404Spjd * extract them appropriately. 1648168404Spjd */ 1649168404Spjdstatic uint64_t 1650168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1651168404Spjd{ 1652168404Spjd nvlist_t *nv; 1653168404Spjd uint64_t value; 1654168404Spjd 1655168404Spjd *source = NULL; 1656168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1657168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1658185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1659185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1660168404Spjd } else { 1661205198Sdelphij verify(!zhp->zfs_props_table || 1662205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1663168404Spjd value = zfs_prop_default_numeric(prop); 1664168404Spjd *source = ""; 1665168404Spjd } 1666168404Spjd 1667168404Spjd return (value); 1668168404Spjd} 1669168404Spjd 1670168404Spjdstatic char * 1671168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1672168404Spjd{ 1673168404Spjd nvlist_t *nv; 1674168404Spjd char *value; 1675168404Spjd 1676168404Spjd *source = NULL; 1677168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1678168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1679185029Spjd verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); 1680185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1681168404Spjd } else { 1682205198Sdelphij verify(!zhp->zfs_props_table || 1683205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1684168404Spjd if ((value = (char *)zfs_prop_default_string(prop)) == NULL) 1685168404Spjd value = ""; 1686168404Spjd *source = ""; 1687168404Spjd } 1688168404Spjd 1689168404Spjd return (value); 1690168404Spjd} 1691168404Spjd 1692219089Spjdstatic boolean_t 1693219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1694219089Spjd{ 1695219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1696219089Spjd} 1697219089Spjd 1698219089Spjdstatic void 1699219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1700219089Spjd{ 1701219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1702219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1703219089Spjd} 1704219089Spjd 1705219089Spjdstatic void 1706219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1707219089Spjd{ 1708219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1709219089Spjd *cookie = 0; 1710219089Spjd} 1711219089Spjd 1712168404Spjd/* 1713168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1714168404Spjd * zfs_prop_get_int() are built using this interface. 1715168404Spjd * 1716168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1717168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1718168404Spjd * If they differ from the on-disk values, report the current values and mark 1719168404Spjd * the source "temporary". 1720168404Spjd */ 1721168404Spjdstatic int 1722185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1723168404Spjd char **source, uint64_t *val) 1724168404Spjd{ 1725185029Spjd zfs_cmd_t zc = { 0 }; 1726185029Spjd nvlist_t *zplprops = NULL; 1727168404Spjd struct mnttab mnt; 1728168404Spjd char *mntopt_on = NULL; 1729168404Spjd char *mntopt_off = NULL; 1730219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1731168404Spjd 1732168404Spjd *source = NULL; 1733168404Spjd 1734168404Spjd switch (prop) { 1735168404Spjd case ZFS_PROP_ATIME: 1736168404Spjd mntopt_on = MNTOPT_ATIME; 1737168404Spjd mntopt_off = MNTOPT_NOATIME; 1738168404Spjd break; 1739168404Spjd 1740168404Spjd case ZFS_PROP_DEVICES: 1741168404Spjd mntopt_on = MNTOPT_DEVICES; 1742168404Spjd mntopt_off = MNTOPT_NODEVICES; 1743168404Spjd break; 1744168404Spjd 1745168404Spjd case ZFS_PROP_EXEC: 1746168404Spjd mntopt_on = MNTOPT_EXEC; 1747168404Spjd mntopt_off = MNTOPT_NOEXEC; 1748168404Spjd break; 1749168404Spjd 1750168404Spjd case ZFS_PROP_READONLY: 1751168404Spjd mntopt_on = MNTOPT_RO; 1752168404Spjd mntopt_off = MNTOPT_RW; 1753168404Spjd break; 1754168404Spjd 1755168404Spjd case ZFS_PROP_SETUID: 1756168404Spjd mntopt_on = MNTOPT_SETUID; 1757168404Spjd mntopt_off = MNTOPT_NOSETUID; 1758168404Spjd break; 1759168404Spjd 1760168404Spjd case ZFS_PROP_XATTR: 1761168404Spjd mntopt_on = MNTOPT_XATTR; 1762168404Spjd mntopt_off = MNTOPT_NOXATTR; 1763168404Spjd break; 1764185029Spjd 1765185029Spjd case ZFS_PROP_NBMAND: 1766185029Spjd mntopt_on = MNTOPT_NBMAND; 1767185029Spjd mntopt_off = MNTOPT_NONBMAND; 1768185029Spjd break; 1769168404Spjd } 1770168404Spjd 1771168404Spjd /* 1772168404Spjd * Because looking up the mount options is potentially expensive 1773168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1774168404Spjd * we're looking up a property which requires its presence. 1775168404Spjd */ 1776168404Spjd if (!zhp->zfs_mntcheck && 1777168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1778209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1779209962Smm struct mnttab entry; 1780168404Spjd 1781209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1782209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1783168404Spjd entry.mnt_mntopts); 1784168404Spjd if (zhp->zfs_mntopts == NULL) 1785168404Spjd return (-1); 1786168404Spjd } 1787168404Spjd 1788168404Spjd zhp->zfs_mntcheck = B_TRUE; 1789168404Spjd } 1790168404Spjd 1791168404Spjd if (zhp->zfs_mntopts == NULL) 1792168404Spjd mnt.mnt_mntopts = ""; 1793168404Spjd else 1794168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1795168404Spjd 1796168404Spjd switch (prop) { 1797168404Spjd case ZFS_PROP_ATIME: 1798168404Spjd case ZFS_PROP_DEVICES: 1799168404Spjd case ZFS_PROP_EXEC: 1800168404Spjd case ZFS_PROP_READONLY: 1801168404Spjd case ZFS_PROP_SETUID: 1802168404Spjd case ZFS_PROP_XATTR: 1803185029Spjd case ZFS_PROP_NBMAND: 1804168404Spjd *val = getprop_uint64(zhp, prop, source); 1805168404Spjd 1806219089Spjd if (received) 1807219089Spjd break; 1808219089Spjd 1809168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 1810168404Spjd *val = B_TRUE; 1811168404Spjd if (src) 1812185029Spjd *src = ZPROP_SRC_TEMPORARY; 1813168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 1814168404Spjd *val = B_FALSE; 1815168404Spjd if (src) 1816185029Spjd *src = ZPROP_SRC_TEMPORARY; 1817168404Spjd } 1818168404Spjd break; 1819168404Spjd 1820168404Spjd case ZFS_PROP_CANMOUNT: 1821219089Spjd case ZFS_PROP_VOLSIZE: 1822168404Spjd case ZFS_PROP_QUOTA: 1823185029Spjd case ZFS_PROP_REFQUOTA: 1824168404Spjd case ZFS_PROP_RESERVATION: 1825185029Spjd case ZFS_PROP_REFRESERVATION: 1826168404Spjd *val = getprop_uint64(zhp, prop, source); 1827219089Spjd 1828219089Spjd if (*source == NULL) { 1829219089Spjd /* not default, must be local */ 1830168404Spjd *source = zhp->zfs_name; 1831219089Spjd } 1832168404Spjd break; 1833168404Spjd 1834168404Spjd case ZFS_PROP_MOUNTED: 1835168404Spjd *val = (zhp->zfs_mntopts != NULL); 1836168404Spjd break; 1837168404Spjd 1838168404Spjd case ZFS_PROP_NUMCLONES: 1839168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 1840168404Spjd break; 1841168404Spjd 1842185029Spjd case ZFS_PROP_VERSION: 1843185029Spjd case ZFS_PROP_NORMALIZE: 1844185029Spjd case ZFS_PROP_UTF8ONLY: 1845185029Spjd case ZFS_PROP_CASE: 1846185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 1847185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 1848185029Spjd return (-1); 1849185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1850185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 1851185029Spjd zcmd_free_nvlists(&zc); 1852219089Spjd return (-1); 1853185029Spjd } 1854185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 1855185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 1856185029Spjd val) != 0) { 1857185029Spjd zcmd_free_nvlists(&zc); 1858219089Spjd return (-1); 1859185029Spjd } 1860185029Spjd if (zplprops) 1861185029Spjd nvlist_free(zplprops); 1862185029Spjd zcmd_free_nvlists(&zc); 1863185029Spjd break; 1864185029Spjd 1865168404Spjd default: 1866185029Spjd switch (zfs_prop_get_type(prop)) { 1867185029Spjd case PROP_TYPE_NUMBER: 1868185029Spjd case PROP_TYPE_INDEX: 1869185029Spjd *val = getprop_uint64(zhp, prop, source); 1870185029Spjd /* 1871209962Smm * If we tried to use a default value for a 1872185029Spjd * readonly property, it means that it was not 1873219089Spjd * present. 1874185029Spjd */ 1875185029Spjd if (zfs_prop_readonly(prop) && 1876219089Spjd *source != NULL && (*source)[0] == '\0') { 1877219089Spjd *source = NULL; 1878185029Spjd } 1879185029Spjd break; 1880185029Spjd 1881185029Spjd case PROP_TYPE_STRING: 1882185029Spjd default: 1883185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 1884185029Spjd "cannot get non-numeric property")); 1885185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 1886185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 1887185029Spjd } 1888168404Spjd } 1889168404Spjd 1890168404Spjd return (0); 1891168404Spjd} 1892168404Spjd 1893168404Spjd/* 1894168404Spjd * Calculate the source type, given the raw source string. 1895168404Spjd */ 1896168404Spjdstatic void 1897185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 1898168404Spjd char *statbuf, size_t statlen) 1899168404Spjd{ 1900185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 1901168404Spjd return; 1902168404Spjd 1903168404Spjd if (source == NULL) { 1904185029Spjd *srctype = ZPROP_SRC_NONE; 1905168404Spjd } else if (source[0] == '\0') { 1906185029Spjd *srctype = ZPROP_SRC_DEFAULT; 1907219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 1908219089Spjd *srctype = ZPROP_SRC_RECEIVED; 1909168404Spjd } else { 1910168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 1911185029Spjd *srctype = ZPROP_SRC_LOCAL; 1912168404Spjd } else { 1913168404Spjd (void) strlcpy(statbuf, source, statlen); 1914185029Spjd *srctype = ZPROP_SRC_INHERITED; 1915168404Spjd } 1916168404Spjd } 1917168404Spjd 1918168404Spjd} 1919168404Spjd 1920219089Spjdint 1921219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 1922219089Spjd size_t proplen, boolean_t literal) 1923219089Spjd{ 1924219089Spjd zfs_prop_t prop; 1925219089Spjd int err = 0; 1926219089Spjd 1927219089Spjd if (zhp->zfs_recvd_props == NULL) 1928219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 1929219089Spjd return (-1); 1930219089Spjd 1931219089Spjd prop = zfs_name_to_prop(propname); 1932219089Spjd 1933219089Spjd if (prop != ZPROP_INVAL) { 1934219089Spjd uint64_t cookie; 1935219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 1936219089Spjd return (-1); 1937219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 1938219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 1939219089Spjd NULL, NULL, 0, literal); 1940219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 1941219089Spjd } else { 1942219089Spjd nvlist_t *propval; 1943219089Spjd char *recvdval; 1944219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 1945219089Spjd propname, &propval) != 0) 1946219089Spjd return (-1); 1947219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 1948219089Spjd &recvdval) == 0); 1949219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 1950219089Spjd } 1951219089Spjd 1952219089Spjd return (err == 0 ? 0 : -1); 1953219089Spjd} 1954219089Spjd 1955228103Smmstatic int 1956228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 1957228103Smm{ 1958228103Smm nvlist_t *value; 1959228103Smm nvpair_t *pair; 1960228103Smm 1961228103Smm value = zfs_get_clones_nvl(zhp); 1962228103Smm if (value == NULL) 1963228103Smm return (-1); 1964228103Smm 1965228103Smm propbuf[0] = '\0'; 1966228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 1967228103Smm pair = nvlist_next_nvpair(value, pair)) { 1968228103Smm if (propbuf[0] != '\0') 1969228103Smm (void) strlcat(propbuf, ",", proplen); 1970228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 1971228103Smm } 1972228103Smm 1973228103Smm return (0); 1974228103Smm} 1975228103Smm 1976228103Smmstruct get_clones_arg { 1977228103Smm uint64_t numclones; 1978228103Smm nvlist_t *value; 1979228103Smm const char *origin; 1980228103Smm char buf[ZFS_MAXNAMELEN]; 1981228103Smm}; 1982228103Smm 1983228103Smmint 1984228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 1985228103Smm{ 1986228103Smm struct get_clones_arg *gca = arg; 1987228103Smm 1988228103Smm if (gca->numclones == 0) { 1989228103Smm zfs_close(zhp); 1990228103Smm return (0); 1991228103Smm } 1992228103Smm 1993228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 1994228103Smm NULL, NULL, 0, B_TRUE) != 0) 1995228103Smm goto out; 1996228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 1997228103Smm if (nvlist_add_boolean(gca->value, zfs_get_name(zhp)) != 0) { 1998228103Smm zfs_close(zhp); 1999228103Smm return (no_memory(zhp->zfs_hdl)); 2000228103Smm } 2001228103Smm gca->numclones--; 2002228103Smm } 2003228103Smm 2004228103Smmout: 2005228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2006228103Smm zfs_close(zhp); 2007228103Smm return (0); 2008228103Smm} 2009228103Smm 2010228103Smmnvlist_t * 2011228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2012228103Smm{ 2013228103Smm nvlist_t *nv, *value; 2014228103Smm 2015228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2016228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2017228103Smm struct get_clones_arg gca; 2018228103Smm 2019228103Smm /* 2020228103Smm * if this is a snapshot, then the kernel wasn't able 2021228103Smm * to get the clones. Do it by slowly iterating. 2022228103Smm */ 2023228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2024228103Smm return (NULL); 2025228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2026228103Smm return (NULL); 2027228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2028228103Smm nvlist_free(nv); 2029228103Smm return (NULL); 2030228103Smm } 2031228103Smm 2032228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2033228103Smm gca.value = value; 2034228103Smm gca.origin = zhp->zfs_name; 2035228103Smm 2036228103Smm if (gca.numclones != 0) { 2037228103Smm zfs_handle_t *root; 2038228103Smm char pool[ZFS_MAXNAMELEN]; 2039228103Smm char *cp = pool; 2040228103Smm 2041228103Smm /* get the pool name */ 2042228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2043228103Smm (void) strsep(&cp, "/@"); 2044228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2045228103Smm ZFS_TYPE_FILESYSTEM); 2046228103Smm 2047228103Smm (void) get_clones_cb(root, &gca); 2048228103Smm } 2049228103Smm 2050228103Smm if (gca.numclones != 0 || 2051228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2052228103Smm nvlist_add_nvlist(zhp->zfs_props, 2053228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2054228103Smm nvlist_free(nv); 2055228103Smm nvlist_free(value); 2056228103Smm return (NULL); 2057228103Smm } 2058228103Smm nvlist_free(nv); 2059228103Smm nvlist_free(value); 2060228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2061228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2062228103Smm } 2063228103Smm 2064228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2065228103Smm 2066228103Smm return (value); 2067228103Smm} 2068228103Smm 2069168404Spjd/* 2070168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2071168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2072168404Spjd * human-readable form. 2073168404Spjd * 2074168404Spjd * Returns 0 on success, or -1 on error. 2075168404Spjd */ 2076168404Spjdint 2077168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2078185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2079168404Spjd{ 2080168404Spjd char *source = NULL; 2081168404Spjd uint64_t val; 2082168404Spjd char *str; 2083168404Spjd const char *strval; 2084219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2085168404Spjd 2086168404Spjd /* 2087168404Spjd * Check to see if this property applies to our object 2088168404Spjd */ 2089168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2090168404Spjd return (-1); 2091168404Spjd 2092219089Spjd if (received && zfs_prop_readonly(prop)) 2093219089Spjd return (-1); 2094219089Spjd 2095168404Spjd if (src) 2096185029Spjd *src = ZPROP_SRC_NONE; 2097168404Spjd 2098168404Spjd switch (prop) { 2099168404Spjd case ZFS_PROP_CREATION: 2100168404Spjd /* 2101168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2102168404Spjd * this into a string unless 'literal' is specified. 2103168404Spjd */ 2104168404Spjd { 2105168404Spjd val = getprop_uint64(zhp, prop, &source); 2106168404Spjd time_t time = (time_t)val; 2107168404Spjd struct tm t; 2108168404Spjd 2109168404Spjd if (literal || 2110168404Spjd localtime_r(&time, &t) == NULL || 2111168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2112168404Spjd &t) == 0) 2113168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2114168404Spjd } 2115168404Spjd break; 2116168404Spjd 2117168404Spjd case ZFS_PROP_MOUNTPOINT: 2118168404Spjd /* 2119168404Spjd * Getting the precise mountpoint can be tricky. 2120168404Spjd * 2121168404Spjd * - for 'none' or 'legacy', return those values. 2122168404Spjd * - for inherited mountpoints, we want to take everything 2123168404Spjd * after our ancestor and append it to the inherited value. 2124168404Spjd * 2125168404Spjd * If the pool has an alternate root, we want to prepend that 2126168404Spjd * root to any values we return. 2127168404Spjd */ 2128185029Spjd 2129168404Spjd str = getprop_string(zhp, prop, &source); 2130168404Spjd 2131185029Spjd if (str[0] == '/') { 2132185029Spjd char buf[MAXPATHLEN]; 2133185029Spjd char *root = buf; 2134219089Spjd const char *relpath; 2135168404Spjd 2136219089Spjd /* 2137219089Spjd * If we inherit the mountpoint, even from a dataset 2138219089Spjd * with a received value, the source will be the path of 2139219089Spjd * the dataset we inherit from. If source is 2140219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2141219089Spjd * inherited. 2142219089Spjd */ 2143219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2144219089Spjd relpath = ""; 2145219089Spjd } else { 2146219089Spjd relpath = zhp->zfs_name + strlen(source); 2147219089Spjd if (relpath[0] == '/') 2148219089Spjd relpath++; 2149219089Spjd } 2150185029Spjd 2151185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2152185029Spjd ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || 2153185029Spjd (strcmp(root, "-") == 0)) 2154185029Spjd root[0] = '\0'; 2155185029Spjd /* 2156185029Spjd * Special case an alternate root of '/'. This will 2157185029Spjd * avoid having multiple leading slashes in the 2158185029Spjd * mountpoint path. 2159185029Spjd */ 2160185029Spjd if (strcmp(root, "/") == 0) 2161185029Spjd root++; 2162185029Spjd 2163185029Spjd /* 2164185029Spjd * If the mountpoint is '/' then skip over this 2165185029Spjd * if we are obtaining either an alternate root or 2166185029Spjd * an inherited mountpoint. 2167185029Spjd */ 2168185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2169185029Spjd relpath[0] != '\0')) 2170168404Spjd str++; 2171168404Spjd 2172168404Spjd if (relpath[0] == '\0') 2173168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2174168404Spjd root, str); 2175168404Spjd else 2176168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2177168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2178168404Spjd relpath); 2179168404Spjd } else { 2180168404Spjd /* 'legacy' or 'none' */ 2181168404Spjd (void) strlcpy(propbuf, str, proplen); 2182168404Spjd } 2183168404Spjd 2184168404Spjd break; 2185168404Spjd 2186168404Spjd case ZFS_PROP_ORIGIN: 2187168404Spjd (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), 2188168404Spjd proplen); 2189168404Spjd /* 2190168404Spjd * If there is no parent at all, return failure to indicate that 2191168404Spjd * it doesn't apply to this dataset. 2192168404Spjd */ 2193168404Spjd if (propbuf[0] == '\0') 2194168404Spjd return (-1); 2195168404Spjd break; 2196168404Spjd 2197228103Smm case ZFS_PROP_CLONES: 2198228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2199228103Smm return (-1); 2200228103Smm break; 2201228103Smm 2202168404Spjd case ZFS_PROP_QUOTA: 2203185029Spjd case ZFS_PROP_REFQUOTA: 2204168404Spjd case ZFS_PROP_RESERVATION: 2205185029Spjd case ZFS_PROP_REFRESERVATION: 2206185029Spjd 2207168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2208168404Spjd return (-1); 2209168404Spjd 2210168404Spjd /* 2211168404Spjd * If quota or reservation is 0, we translate this into 'none' 2212168404Spjd * (unless literal is set), and indicate that it's the default 2213168404Spjd * value. Otherwise, we print the number nicely and indicate 2214168404Spjd * that its set locally. 2215168404Spjd */ 2216168404Spjd if (val == 0) { 2217168404Spjd if (literal) 2218168404Spjd (void) strlcpy(propbuf, "0", proplen); 2219168404Spjd else 2220168404Spjd (void) strlcpy(propbuf, "none", proplen); 2221168404Spjd } else { 2222168404Spjd if (literal) 2223168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2224168404Spjd (u_longlong_t)val); 2225168404Spjd else 2226168404Spjd zfs_nicenum(val, propbuf, proplen); 2227168404Spjd } 2228168404Spjd break; 2229168404Spjd 2230223623Smm case ZFS_PROP_REFRATIO: 2231168404Spjd case ZFS_PROP_COMPRESSRATIO: 2232168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2233168404Spjd return (-1); 2234219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2235219089Spjd (u_longlong_t)(val / 100), 2236219089Spjd (u_longlong_t)(val % 100)); 2237168404Spjd break; 2238168404Spjd 2239168404Spjd case ZFS_PROP_TYPE: 2240168404Spjd switch (zhp->zfs_type) { 2241168404Spjd case ZFS_TYPE_FILESYSTEM: 2242168404Spjd str = "filesystem"; 2243168404Spjd break; 2244168404Spjd case ZFS_TYPE_VOLUME: 2245168404Spjd str = "volume"; 2246168404Spjd break; 2247168404Spjd case ZFS_TYPE_SNAPSHOT: 2248168404Spjd str = "snapshot"; 2249168404Spjd break; 2250168404Spjd default: 2251168404Spjd abort(); 2252168404Spjd } 2253168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2254168404Spjd break; 2255168404Spjd 2256168404Spjd case ZFS_PROP_MOUNTED: 2257168404Spjd /* 2258168404Spjd * The 'mounted' property is a pseudo-property that described 2259168404Spjd * whether the filesystem is currently mounted. Even though 2260168404Spjd * it's a boolean value, the typical values of "on" and "off" 2261168404Spjd * don't make sense, so we translate to "yes" and "no". 2262168404Spjd */ 2263168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2264168404Spjd src, &source, &val) != 0) 2265168404Spjd return (-1); 2266168404Spjd if (val) 2267168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2268168404Spjd else 2269168404Spjd (void) strlcpy(propbuf, "no", proplen); 2270168404Spjd break; 2271168404Spjd 2272168404Spjd case ZFS_PROP_NAME: 2273168404Spjd /* 2274168404Spjd * The 'name' property is a pseudo-property derived from the 2275168404Spjd * dataset name. It is presented as a real property to simplify 2276168404Spjd * consumers. 2277168404Spjd */ 2278168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2279168404Spjd break; 2280168404Spjd 2281219089Spjd case ZFS_PROP_MLSLABEL: 2282219089Spjd { 2283219089Spjd#ifdef sun 2284219089Spjd m_label_t *new_sl = NULL; 2285219089Spjd char *ascii = NULL; /* human readable label */ 2286219089Spjd 2287219089Spjd (void) strlcpy(propbuf, 2288219089Spjd getprop_string(zhp, prop, &source), proplen); 2289219089Spjd 2290219089Spjd if (literal || (strcasecmp(propbuf, 2291219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2292219089Spjd break; 2293219089Spjd 2294219089Spjd /* 2295219089Spjd * Try to translate the internal hex string to 2296219089Spjd * human-readable output. If there are any 2297219089Spjd * problems just use the hex string. 2298219089Spjd */ 2299219089Spjd 2300219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2301219089Spjd L_NO_CORRECTION, NULL) == -1) { 2302219089Spjd m_label_free(new_sl); 2303219089Spjd break; 2304219089Spjd } 2305219089Spjd 2306219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2307219089Spjd DEF_NAMES) != 0) { 2308219089Spjd if (ascii) 2309219089Spjd free(ascii); 2310219089Spjd m_label_free(new_sl); 2311219089Spjd break; 2312219089Spjd } 2313219089Spjd m_label_free(new_sl); 2314219089Spjd 2315219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2316219089Spjd free(ascii); 2317219089Spjd#else /* !sun */ 2318219089Spjd propbuf[0] = '\0'; 2319219089Spjd#endif /* !sun */ 2320219089Spjd } 2321219089Spjd break; 2322219089Spjd 2323168404Spjd default: 2324185029Spjd switch (zfs_prop_get_type(prop)) { 2325185029Spjd case PROP_TYPE_NUMBER: 2326185029Spjd if (get_numeric_property(zhp, prop, src, 2327185029Spjd &source, &val) != 0) 2328185029Spjd return (-1); 2329185029Spjd if (literal) 2330185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2331185029Spjd (u_longlong_t)val); 2332185029Spjd else 2333185029Spjd zfs_nicenum(val, propbuf, proplen); 2334185029Spjd break; 2335185029Spjd 2336185029Spjd case PROP_TYPE_STRING: 2337185029Spjd (void) strlcpy(propbuf, 2338185029Spjd getprop_string(zhp, prop, &source), proplen); 2339185029Spjd break; 2340185029Spjd 2341185029Spjd case PROP_TYPE_INDEX: 2342185029Spjd if (get_numeric_property(zhp, prop, src, 2343185029Spjd &source, &val) != 0) 2344185029Spjd return (-1); 2345185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2346185029Spjd return (-1); 2347185029Spjd (void) strlcpy(propbuf, strval, proplen); 2348185029Spjd break; 2349185029Spjd 2350185029Spjd default: 2351185029Spjd abort(); 2352185029Spjd } 2353168404Spjd } 2354168404Spjd 2355168404Spjd get_source(zhp, src, source, statbuf, statlen); 2356168404Spjd 2357168404Spjd return (0); 2358168404Spjd} 2359168404Spjd 2360168404Spjd/* 2361168404Spjd * Utility function to get the given numeric property. Does no validation that 2362168404Spjd * the given property is the appropriate type; should only be used with 2363168404Spjd * hard-coded property types. 2364168404Spjd */ 2365168404Spjduint64_t 2366168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2367168404Spjd{ 2368168404Spjd char *source; 2369168404Spjd uint64_t val; 2370168404Spjd 2371185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2372168404Spjd 2373168404Spjd return (val); 2374168404Spjd} 2375168404Spjd 2376185029Spjdint 2377185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2378185029Spjd{ 2379185029Spjd char buf[64]; 2380185029Spjd 2381209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2382185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2383185029Spjd} 2384185029Spjd 2385168404Spjd/* 2386168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2387168404Spjd */ 2388168404Spjdint 2389168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2390185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2391168404Spjd{ 2392168404Spjd char *source; 2393168404Spjd 2394168404Spjd /* 2395168404Spjd * Check to see if this property applies to our object 2396168404Spjd */ 2397185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2398168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2399168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2400168404Spjd zfs_prop_to_name(prop))); 2401185029Spjd } 2402168404Spjd 2403168404Spjd if (src) 2404185029Spjd *src = ZPROP_SRC_NONE; 2405168404Spjd 2406168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2407168404Spjd return (-1); 2408168404Spjd 2409168404Spjd get_source(zhp, src, source, statbuf, statlen); 2410168404Spjd 2411168404Spjd return (0); 2412168404Spjd} 2413168404Spjd 2414209962Smmstatic int 2415209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2416209962Smm char **domainp, idmap_rid_t *ridp) 2417209962Smm{ 2418209962Smm#ifdef sun 2419209962Smm idmap_get_handle_t *get_hdl = NULL; 2420209962Smm idmap_stat status; 2421209962Smm int err = EINVAL; 2422209962Smm 2423219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2424209962Smm goto out; 2425209962Smm 2426209962Smm if (isuser) { 2427209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2428209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2429209962Smm } else { 2430209962Smm err = idmap_get_sidbygid(get_hdl, id, 2431209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2432209962Smm } 2433209962Smm if (err == IDMAP_SUCCESS && 2434209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2435209962Smm status == IDMAP_SUCCESS) 2436209962Smm err = 0; 2437209962Smm else 2438209962Smm err = EINVAL; 2439209962Smmout: 2440209962Smm if (get_hdl) 2441209962Smm idmap_get_destroy(get_hdl); 2442209962Smm return (err); 2443209962Smm#else /* !sun */ 2444209962Smm assert(!"invalid code path"); 2445209962Smm#endif /* !sun */ 2446209962Smm} 2447209962Smm 2448168404Spjd/* 2449209962Smm * convert the propname into parameters needed by kernel 2450209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2451209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2452209962Smm */ 2453209962Smmstatic int 2454209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2455209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2456209962Smm{ 2457209962Smm zfs_userquota_prop_t type; 2458209962Smm char *cp, *end; 2459209962Smm char *numericsid = NULL; 2460209962Smm boolean_t isuser; 2461209962Smm 2462209962Smm domain[0] = '\0'; 2463209962Smm 2464209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2465209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2466209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2467209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2468209962Smm break; 2469209962Smm } 2470209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2471209962Smm return (EINVAL); 2472209962Smm *typep = type; 2473209962Smm 2474209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2475209962Smm type == ZFS_PROP_USERUSED); 2476209962Smm 2477209962Smm cp = strchr(propname, '@') + 1; 2478209962Smm 2479209962Smm if (strchr(cp, '@')) { 2480209962Smm#ifdef sun 2481209962Smm /* 2482209962Smm * It's a SID name (eg "user@domain") that needs to be 2483209962Smm * turned into S-1-domainID-RID. 2484209962Smm */ 2485209962Smm directory_error_t e; 2486209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2487209962Smm return (ENOENT); 2488209962Smm if (isuser) { 2489209962Smm e = directory_sid_from_user_name(NULL, 2490209962Smm cp, &numericsid); 2491209962Smm } else { 2492209962Smm e = directory_sid_from_group_name(NULL, 2493209962Smm cp, &numericsid); 2494209962Smm } 2495209962Smm if (e != NULL) { 2496209962Smm directory_error_free(e); 2497209962Smm return (ENOENT); 2498209962Smm } 2499209962Smm if (numericsid == NULL) 2500209962Smm return (ENOENT); 2501209962Smm cp = numericsid; 2502209962Smm /* will be further decoded below */ 2503209962Smm#else /* !sun */ 2504219089Spjd return (ENOENT); 2505209962Smm#endif /* !sun */ 2506209962Smm } 2507209962Smm 2508209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2509209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2510209962Smm (void) strlcpy(domain, cp, domainlen); 2511209962Smm cp = strrchr(domain, '-'); 2512209962Smm *cp = '\0'; 2513209962Smm cp++; 2514209962Smm 2515209962Smm errno = 0; 2516209962Smm *ridp = strtoull(cp, &end, 10); 2517209962Smm if (numericsid) { 2518209962Smm free(numericsid); 2519209962Smm numericsid = NULL; 2520209962Smm } 2521209962Smm if (errno != 0 || *end != '\0') 2522209962Smm return (EINVAL); 2523209962Smm } else if (!isdigit(*cp)) { 2524209962Smm /* 2525209962Smm * It's a user/group name (eg "user") that needs to be 2526209962Smm * turned into a uid/gid 2527209962Smm */ 2528209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2529209962Smm return (ENOENT); 2530209962Smm if (isuser) { 2531209962Smm struct passwd *pw; 2532209962Smm pw = getpwnam(cp); 2533209962Smm if (pw == NULL) 2534209962Smm return (ENOENT); 2535209962Smm *ridp = pw->pw_uid; 2536209962Smm } else { 2537209962Smm struct group *gr; 2538209962Smm gr = getgrnam(cp); 2539209962Smm if (gr == NULL) 2540209962Smm return (ENOENT); 2541209962Smm *ridp = gr->gr_gid; 2542209962Smm } 2543209962Smm } else { 2544209962Smm /* It's a user/group ID (eg "12345"). */ 2545209962Smm uid_t id = strtoul(cp, &end, 10); 2546209962Smm idmap_rid_t rid; 2547209962Smm char *mapdomain; 2548209962Smm 2549209962Smm if (*end != '\0') 2550209962Smm return (EINVAL); 2551209962Smm if (id > MAXUID) { 2552209962Smm /* It's an ephemeral ID. */ 2553209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2554209962Smm &mapdomain, &rid) != 0) 2555209962Smm return (ENOENT); 2556209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2557209962Smm *ridp = rid; 2558209962Smm } else { 2559209962Smm *ridp = id; 2560209962Smm } 2561209962Smm } 2562209962Smm 2563209962Smm ASSERT3P(numericsid, ==, NULL); 2564209962Smm return (0); 2565209962Smm} 2566209962Smm 2567209962Smmstatic int 2568209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2569209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2570209962Smm{ 2571209962Smm int err; 2572209962Smm zfs_cmd_t zc = { 0 }; 2573209962Smm 2574228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2575209962Smm 2576209962Smm err = userquota_propname_decode(propname, 2577209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2578209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2579209962Smm zc.zc_objset_type = *typep; 2580209962Smm if (err) 2581209962Smm return (err); 2582209962Smm 2583209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2584209962Smm if (err) 2585209962Smm return (err); 2586209962Smm 2587209962Smm *propvalue = zc.zc_cookie; 2588209962Smm return (0); 2589209962Smm} 2590209962Smm 2591209962Smmint 2592209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2593209962Smm uint64_t *propvalue) 2594209962Smm{ 2595209962Smm zfs_userquota_prop_t type; 2596209962Smm 2597209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2598209962Smm &type)); 2599209962Smm} 2600209962Smm 2601209962Smmint 2602209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2603209962Smm char *propbuf, int proplen, boolean_t literal) 2604209962Smm{ 2605209962Smm int err; 2606209962Smm uint64_t propvalue; 2607209962Smm zfs_userquota_prop_t type; 2608209962Smm 2609209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2610209962Smm &type); 2611209962Smm 2612209962Smm if (err) 2613209962Smm return (err); 2614209962Smm 2615209962Smm if (literal) { 2616209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2617209962Smm } else if (propvalue == 0 && 2618209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2619209962Smm (void) strlcpy(propbuf, "none", proplen); 2620209962Smm } else { 2621209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2622209962Smm } 2623209962Smm return (0); 2624209962Smm} 2625209962Smm 2626228103Smmint 2627228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2628228103Smm uint64_t *propvalue) 2629168404Spjd{ 2630228103Smm int err; 2631228103Smm zfs_cmd_t zc = { 0 }; 2632228103Smm const char *snapname; 2633168404Spjd 2634228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2635168404Spjd 2636228103Smm snapname = strchr(propname, '@') + 1; 2637228103Smm if (strchr(snapname, '@')) { 2638228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2639228103Smm } else { 2640228103Smm /* snapname is the short name, append it to zhp's fsname */ 2641228103Smm char *cp; 2642209962Smm 2643228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2644228103Smm sizeof (zc.zc_value)); 2645228103Smm cp = strchr(zc.zc_value, '@'); 2646228103Smm if (cp != NULL) 2647228103Smm *cp = '\0'; 2648228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2649228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2650228103Smm } 2651209962Smm 2652228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2653228103Smm if (err) 2654228103Smm return (err); 2655228103Smm 2656228103Smm *propvalue = zc.zc_cookie; 2657228103Smm return (0); 2658209962Smm} 2659209962Smm 2660168404Spjdint 2661228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2662228103Smm char *propbuf, int proplen, boolean_t literal) 2663168404Spjd{ 2664228103Smm int err; 2665228103Smm uint64_t propvalue; 2666168404Spjd 2667228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2668185029Spjd 2669228103Smm if (err) 2670228103Smm return (err); 2671209962Smm 2672228103Smm if (literal) { 2673228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2674228103Smm } else { 2675228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2676168404Spjd } 2677228103Smm return (0); 2678168404Spjd} 2679168404Spjd 2680168404Spjdint 2681228103Smmzfs_get_snapused_int(zfs_handle_t *firstsnap, zfs_handle_t *lastsnap, 2682228103Smm uint64_t *usedp) 2683168404Spjd{ 2684228103Smm int err; 2685168404Spjd zfs_cmd_t zc = { 0 }; 2686168404Spjd 2687228103Smm (void) strlcpy(zc.zc_name, lastsnap->zfs_name, sizeof (zc.zc_name)); 2688228103Smm (void) strlcpy(zc.zc_value, firstsnap->zfs_name, sizeof (zc.zc_value)); 2689185029Spjd 2690228103Smm err = ioctl(lastsnap->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_SNAPS, &zc); 2691228103Smm if (err) 2692228103Smm return (err); 2693168404Spjd 2694228103Smm *usedp = zc.zc_cookie; 2695209962Smm 2696228103Smm return (0); 2697168404Spjd} 2698168404Spjd 2699168404Spjd/* 2700228103Smm * Returns the name of the given zfs handle. 2701168404Spjd */ 2702228103Smmconst char * 2703228103Smmzfs_get_name(const zfs_handle_t *zhp) 2704168404Spjd{ 2705228103Smm return (zhp->zfs_name); 2706228103Smm} 2707168404Spjd 2708228103Smm/* 2709228103Smm * Returns the type of the given zfs handle. 2710228103Smm */ 2711228103Smmzfs_type_t 2712228103Smmzfs_get_type(const zfs_handle_t *zhp) 2713228103Smm{ 2714228103Smm return (zhp->zfs_type); 2715168404Spjd} 2716168404Spjd 2717168404Spjd/* 2718219089Spjd * Is one dataset name a child dataset of another? 2719219089Spjd * 2720219089Spjd * Needs to handle these cases: 2721219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2722219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2723219089Spjd * Descendant? No. No. No. Yes. 2724219089Spjd */ 2725219089Spjdstatic boolean_t 2726219089Spjdis_descendant(const char *ds1, const char *ds2) 2727219089Spjd{ 2728219089Spjd size_t d1len = strlen(ds1); 2729219089Spjd 2730219089Spjd /* ds2 can't be a descendant if it's smaller */ 2731219089Spjd if (strlen(ds2) < d1len) 2732219089Spjd return (B_FALSE); 2733219089Spjd 2734219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2735219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2736219089Spjd} 2737219089Spjd 2738219089Spjd/* 2739168404Spjd * Given a complete name, return just the portion that refers to the parent. 2740228103Smm * Will return -1 if there is no parent (path is just the name of the 2741228103Smm * pool). 2742168404Spjd */ 2743168404Spjdstatic int 2744168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2745168404Spjd{ 2746228103Smm char *slashp; 2747168404Spjd 2748228103Smm (void) strlcpy(buf, path, buflen); 2749228103Smm 2750228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 2751168404Spjd return (-1); 2752228103Smm *slashp = '\0'; 2753168404Spjd 2754168404Spjd return (0); 2755168404Spjd} 2756168404Spjd 2757168404Spjd/* 2758185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 2759185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 2760185029Spjd * closest existing ancestor for the given path. In prefixlen return the 2761185029Spjd * length of already existing prefix of the given path. We also fetch the 2762185029Spjd * 'zoned' property, which is used to validate property settings when creating 2763185029Spjd * new datasets. 2764168404Spjd */ 2765168404Spjdstatic int 2766185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 2767185029Spjd boolean_t accept_ancestor, int *prefixlen) 2768168404Spjd{ 2769168404Spjd zfs_cmd_t zc = { 0 }; 2770168404Spjd char parent[ZFS_MAXNAMELEN]; 2771168404Spjd char *slash; 2772168404Spjd zfs_handle_t *zhp; 2773168404Spjd char errbuf[1024]; 2774219089Spjd uint64_t is_zoned; 2775168404Spjd 2776209962Smm (void) snprintf(errbuf, sizeof (errbuf), 2777209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 2778168404Spjd 2779168404Spjd /* get parent, and check to see if this is just a pool */ 2780168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 2781168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2782168404Spjd "missing dataset name")); 2783168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2784168404Spjd } 2785168404Spjd 2786168404Spjd /* check to see if the pool exists */ 2787168404Spjd if ((slash = strchr(parent, '/')) == NULL) 2788168404Spjd slash = parent + strlen(parent); 2789168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 2790168404Spjd zc.zc_name[slash - parent] = '\0'; 2791168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 2792168404Spjd errno == ENOENT) { 2793168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2794168404Spjd "no such pool '%s'"), zc.zc_name); 2795168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2796168404Spjd } 2797168404Spjd 2798168404Spjd /* check to see if the parent dataset exists */ 2799185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 2800185029Spjd if (errno == ENOENT && accept_ancestor) { 2801185029Spjd /* 2802185029Spjd * Go deeper to find an ancestor, give up on top level. 2803185029Spjd */ 2804185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 2805185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2806185029Spjd "no such pool '%s'"), zc.zc_name); 2807185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2808185029Spjd } 2809185029Spjd } else if (errno == ENOENT) { 2810168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2811168404Spjd "parent does not exist")); 2812168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2813185029Spjd } else 2814168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 2815168404Spjd } 2816168404Spjd 2817219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 2818219089Spjd if (zoned != NULL) 2819219089Spjd *zoned = is_zoned; 2820219089Spjd 2821168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 2822219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 2823168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 2824168404Spjd zfs_close(zhp); 2825168404Spjd return (-1); 2826168404Spjd } 2827168404Spjd 2828168404Spjd /* make sure parent is a filesystem */ 2829168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 2830168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2831168404Spjd "parent is not a filesystem")); 2832168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 2833168404Spjd zfs_close(zhp); 2834168404Spjd return (-1); 2835168404Spjd } 2836168404Spjd 2837168404Spjd zfs_close(zhp); 2838185029Spjd if (prefixlen != NULL) 2839185029Spjd *prefixlen = strlen(parent); 2840168404Spjd return (0); 2841168404Spjd} 2842168404Spjd 2843168404Spjd/* 2844185029Spjd * Finds whether the dataset of the given type(s) exists. 2845185029Spjd */ 2846185029Spjdboolean_t 2847185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 2848185029Spjd{ 2849185029Spjd zfs_handle_t *zhp; 2850185029Spjd 2851185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 2852185029Spjd return (B_FALSE); 2853185029Spjd 2854185029Spjd /* 2855185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 2856185029Spjd */ 2857185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 2858185029Spjd int ds_type = zhp->zfs_type; 2859185029Spjd 2860185029Spjd zfs_close(zhp); 2861185029Spjd if (types & ds_type) 2862185029Spjd return (B_TRUE); 2863185029Spjd } 2864185029Spjd return (B_FALSE); 2865185029Spjd} 2866185029Spjd 2867185029Spjd/* 2868185029Spjd * Given a path to 'target', create all the ancestors between 2869185029Spjd * the prefixlen portion of the path, and the target itself. 2870185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 2871185029Spjd */ 2872185029Spjdint 2873185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 2874185029Spjd{ 2875185029Spjd zfs_handle_t *h; 2876185029Spjd char *cp; 2877185029Spjd const char *opname; 2878185029Spjd 2879185029Spjd /* make sure prefix exists */ 2880185029Spjd cp = target + prefixlen; 2881185029Spjd if (*cp != '/') { 2882185029Spjd assert(strchr(cp, '/') == NULL); 2883185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2884185029Spjd } else { 2885185029Spjd *cp = '\0'; 2886185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2887185029Spjd *cp = '/'; 2888185029Spjd } 2889185029Spjd if (h == NULL) 2890185029Spjd return (-1); 2891185029Spjd zfs_close(h); 2892185029Spjd 2893185029Spjd /* 2894185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 2895185029Spjd * up to the prefixlen-long one. 2896185029Spjd */ 2897185029Spjd for (cp = target + prefixlen + 1; 2898185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 2899185029Spjd char *logstr; 2900185029Spjd 2901185029Spjd *cp = '\0'; 2902185029Spjd 2903185029Spjd h = make_dataset_handle(hdl, target); 2904185029Spjd if (h) { 2905185029Spjd /* it already exists, nothing to do here */ 2906185029Spjd zfs_close(h); 2907185029Spjd continue; 2908185029Spjd } 2909185029Spjd 2910185029Spjd logstr = hdl->libzfs_log_str; 2911185029Spjd hdl->libzfs_log_str = NULL; 2912185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 2913185029Spjd NULL) != 0) { 2914185029Spjd hdl->libzfs_log_str = logstr; 2915185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 2916185029Spjd goto ancestorerr; 2917185029Spjd } 2918185029Spjd 2919185029Spjd hdl->libzfs_log_str = logstr; 2920185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2921185029Spjd if (h == NULL) { 2922185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 2923185029Spjd goto ancestorerr; 2924185029Spjd } 2925185029Spjd 2926185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 2927185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 2928185029Spjd goto ancestorerr; 2929185029Spjd } 2930185029Spjd 2931185029Spjd if (zfs_share(h) != 0) { 2932185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 2933185029Spjd goto ancestorerr; 2934185029Spjd } 2935185029Spjd 2936185029Spjd zfs_close(h); 2937185029Spjd } 2938185029Spjd 2939185029Spjd return (0); 2940185029Spjd 2941185029Spjdancestorerr: 2942185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2943185029Spjd "failed to %s ancestor '%s'"), opname, target); 2944185029Spjd return (-1); 2945185029Spjd} 2946185029Spjd 2947185029Spjd/* 2948185029Spjd * Creates non-existing ancestors of the given path. 2949185029Spjd */ 2950185029Spjdint 2951185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 2952185029Spjd{ 2953185029Spjd int prefix; 2954185029Spjd char *path_copy; 2955185029Spjd int rc; 2956185029Spjd 2957219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 2958185029Spjd return (-1); 2959185029Spjd 2960185029Spjd if ((path_copy = strdup(path)) != NULL) { 2961185029Spjd rc = create_parents(hdl, path_copy, prefix); 2962185029Spjd free(path_copy); 2963185029Spjd } 2964185029Spjd if (path_copy == NULL || rc != 0) 2965185029Spjd return (-1); 2966185029Spjd 2967185029Spjd return (0); 2968185029Spjd} 2969185029Spjd 2970185029Spjd/* 2971168404Spjd * Create a new filesystem or volume. 2972168404Spjd */ 2973168404Spjdint 2974168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 2975168404Spjd nvlist_t *props) 2976168404Spjd{ 2977168404Spjd zfs_cmd_t zc = { 0 }; 2978168404Spjd int ret; 2979168404Spjd uint64_t size = 0; 2980168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 2981168404Spjd char errbuf[1024]; 2982168404Spjd uint64_t zoned; 2983168404Spjd 2984168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 2985168404Spjd "cannot create '%s'"), path); 2986168404Spjd 2987168404Spjd /* validate the path, taking care to note the extended error message */ 2988185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 2989168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2990168404Spjd 2991168404Spjd /* validate parents exist */ 2992185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 2993168404Spjd return (-1); 2994168404Spjd 2995168404Spjd /* 2996168404Spjd * The failure modes when creating a dataset of a different type over 2997168404Spjd * one that already exists is a little strange. In particular, if you 2998168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 2999168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3000168404Spjd * first try to see if the dataset exists. 3001168404Spjd */ 3002168404Spjd (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name)); 3003185029Spjd if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { 3004168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3005168404Spjd "dataset already exists")); 3006168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3007168404Spjd } 3008168404Spjd 3009168404Spjd if (type == ZFS_TYPE_VOLUME) 3010168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3011168404Spjd else 3012168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3013168404Spjd 3014185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3015168404Spjd zoned, NULL, errbuf)) == 0) 3016168404Spjd return (-1); 3017168404Spjd 3018168404Spjd if (type == ZFS_TYPE_VOLUME) { 3019168404Spjd /* 3020168404Spjd * If we are creating a volume, the size and block size must 3021168404Spjd * satisfy a few restraints. First, the blocksize must be a 3022168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3023168404Spjd * volsize must be a multiple of the block size, and cannot be 3024168404Spjd * zero. 3025168404Spjd */ 3026168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3027168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3028168404Spjd nvlist_free(props); 3029168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3030168404Spjd "missing volume size")); 3031168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3032168404Spjd } 3033168404Spjd 3034168404Spjd if ((ret = nvlist_lookup_uint64(props, 3035168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3036168404Spjd &blocksize)) != 0) { 3037168404Spjd if (ret == ENOENT) { 3038168404Spjd blocksize = zfs_prop_default_numeric( 3039168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3040168404Spjd } else { 3041168404Spjd nvlist_free(props); 3042168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3043168404Spjd "missing volume block size")); 3044168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3045168404Spjd } 3046168404Spjd } 3047168404Spjd 3048168404Spjd if (size == 0) { 3049168404Spjd nvlist_free(props); 3050168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3051168404Spjd "volume size cannot be zero")); 3052168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3053168404Spjd } 3054168404Spjd 3055168404Spjd if (size % blocksize != 0) { 3056168404Spjd nvlist_free(props); 3057168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3058168404Spjd "volume size must be a multiple of volume block " 3059168404Spjd "size")); 3060168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3061168404Spjd } 3062168404Spjd } 3063168404Spjd 3064185029Spjd if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0) 3065168404Spjd return (-1); 3066168404Spjd nvlist_free(props); 3067168404Spjd 3068168404Spjd /* create the dataset */ 3069185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); 3070168404Spjd 3071168404Spjd zcmd_free_nvlists(&zc); 3072168404Spjd 3073168404Spjd /* check for failure */ 3074168404Spjd if (ret != 0) { 3075168404Spjd char parent[ZFS_MAXNAMELEN]; 3076168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3077168404Spjd 3078168404Spjd switch (errno) { 3079168404Spjd case ENOENT: 3080168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3081168404Spjd "no such parent '%s'"), parent); 3082168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3083168404Spjd 3084168404Spjd case EINVAL: 3085168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3086168404Spjd "parent '%s' is not a filesystem"), parent); 3087168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3088168404Spjd 3089168404Spjd case EDOM: 3090168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3091168404Spjd "volume block size must be power of 2 from " 3092168404Spjd "%u to %uk"), 3093168404Spjd (uint_t)SPA_MINBLOCKSIZE, 3094168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 3095168404Spjd 3096168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3097168404Spjd 3098185029Spjd case ENOTSUP: 3099185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3100185029Spjd "pool must be upgraded to set this " 3101185029Spjd "property or value")); 3102185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3103168404Spjd#ifdef _ILP32 3104168404Spjd case EOVERFLOW: 3105168404Spjd /* 3106168404Spjd * This platform can't address a volume this big. 3107168404Spjd */ 3108168404Spjd if (type == ZFS_TYPE_VOLUME) 3109168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3110168404Spjd errbuf)); 3111168404Spjd#endif 3112168404Spjd /* FALLTHROUGH */ 3113168404Spjd default: 3114168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3115168404Spjd } 3116168404Spjd } 3117168404Spjd 3118168404Spjd return (0); 3119168404Spjd} 3120168404Spjd 3121168404Spjd/* 3122168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3123168404Spjd * isn't mounted, and that there are no active dependents. 3124168404Spjd */ 3125168404Spjdint 3126219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3127168404Spjd{ 3128168404Spjd zfs_cmd_t zc = { 0 }; 3129168404Spjd 3130168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3131168404Spjd 3132168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3133168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3134168404Spjd } else { 3135168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3136168404Spjd } 3137168404Spjd 3138219089Spjd zc.zc_defer_destroy = defer; 3139185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0) { 3140168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3141168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3142168404Spjd zhp->zfs_name)); 3143168404Spjd } 3144168404Spjd 3145168404Spjd remove_mountpoint(zhp); 3146168404Spjd 3147168404Spjd return (0); 3148168404Spjd} 3149168404Spjd 3150168404Spjdstruct destroydata { 3151228103Smm nvlist_t *nvl; 3152228103Smm const char *snapname; 3153168404Spjd}; 3154168404Spjd 3155168404Spjdstatic int 3156219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3157168404Spjd{ 3158168404Spjd struct destroydata *dd = arg; 3159168404Spjd zfs_handle_t *szhp; 3160168404Spjd char name[ZFS_MAXNAMELEN]; 3161219089Spjd int rv = 0; 3162168404Spjd 3163228103Smm (void) snprintf(name, sizeof (name), 3164228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3165168404Spjd 3166168404Spjd szhp = make_dataset_handle(zhp->zfs_hdl, name); 3167168404Spjd if (szhp) { 3168228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3169168404Spjd zfs_close(szhp); 3170168404Spjd } 3171168404Spjd 3172228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3173228103Smm zfs_close(zhp); 3174168404Spjd return (rv); 3175168404Spjd} 3176168404Spjd 3177168404Spjd/* 3178168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3179168404Spjd */ 3180168404Spjdint 3181219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3182168404Spjd{ 3183168404Spjd int ret; 3184168404Spjd struct destroydata dd = { 0 }; 3185168404Spjd 3186168404Spjd dd.snapname = snapname; 3187228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3188228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3189168404Spjd 3190228103Smm if (nvlist_next_nvpair(dd.nvl, NULL) == NULL) { 3191228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3192168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3193228103Smm zhp->zfs_name, snapname); 3194228103Smm } else { 3195228103Smm ret = zfs_destroy_snaps_nvl(zhp, dd.nvl, defer); 3196168404Spjd } 3197228103Smm nvlist_free(dd.nvl); 3198228103Smm return (ret); 3199228103Smm} 3200168404Spjd 3201228103Smm/* 3202228103Smm * Destroys all the snapshots named in the nvlist. They must be underneath 3203228103Smm * the zhp (either snapshots of it, or snapshots of its descendants). 3204228103Smm */ 3205228103Smmint 3206228103Smmzfs_destroy_snaps_nvl(zfs_handle_t *zhp, nvlist_t *snaps, boolean_t defer) 3207228103Smm{ 3208228103Smm int ret; 3209228103Smm zfs_cmd_t zc = { 0 }; 3210228103Smm 3211168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3212228103Smm if (zcmd_write_src_nvlist(zhp->zfs_hdl, &zc, snaps) != 0) 3213228103Smm return (-1); 3214219089Spjd zc.zc_defer_destroy = defer; 3215168404Spjd 3216228103Smm ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS_NVL, &zc); 3217168404Spjd if (ret != 0) { 3218168404Spjd char errbuf[1024]; 3219168404Spjd 3220168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3221228103Smm "cannot destroy snapshots in %s"), zc.zc_name); 3222168404Spjd 3223168404Spjd switch (errno) { 3224168404Spjd case EEXIST: 3225168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3226168404Spjd "snapshot is cloned")); 3227168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf)); 3228168404Spjd 3229168404Spjd default: 3230168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3231168404Spjd errbuf)); 3232168404Spjd } 3233168404Spjd } 3234168404Spjd 3235168404Spjd return (0); 3236168404Spjd} 3237168404Spjd 3238168404Spjd/* 3239168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3240168404Spjd */ 3241168404Spjdint 3242168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3243168404Spjd{ 3244168404Spjd zfs_cmd_t zc = { 0 }; 3245168404Spjd char parent[ZFS_MAXNAMELEN]; 3246168404Spjd int ret; 3247168404Spjd char errbuf[1024]; 3248168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3249168404Spjd zfs_type_t type; 3250168404Spjd uint64_t zoned; 3251168404Spjd 3252168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3253168404Spjd 3254168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3255168404Spjd "cannot create '%s'"), target); 3256168404Spjd 3257228103Smm /* validate the target/clone name */ 3258185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3259168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3260168404Spjd 3261168404Spjd /* validate parents exist */ 3262185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3263168404Spjd return (-1); 3264168404Spjd 3265168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3266168404Spjd 3267168404Spjd /* do the clone */ 3268168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3269168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3270168404Spjd type = ZFS_TYPE_VOLUME; 3271168404Spjd } else { 3272168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3273168404Spjd type = ZFS_TYPE_FILESYSTEM; 3274168404Spjd } 3275168404Spjd 3276168404Spjd if (props) { 3277185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3278185029Spjd zhp, errbuf)) == NULL) 3279168404Spjd return (-1); 3280168404Spjd 3281185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 3282168404Spjd nvlist_free(props); 3283168404Spjd return (-1); 3284168404Spjd } 3285168404Spjd 3286168404Spjd nvlist_free(props); 3287168404Spjd } 3288168404Spjd 3289168404Spjd (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name)); 3290168404Spjd (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value)); 3291185029Spjd ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc); 3292168404Spjd 3293168404Spjd zcmd_free_nvlists(&zc); 3294168404Spjd 3295168404Spjd if (ret != 0) { 3296168404Spjd switch (errno) { 3297168404Spjd 3298168404Spjd case ENOENT: 3299168404Spjd /* 3300168404Spjd * The parent doesn't exist. We should have caught this 3301168404Spjd * above, but there may a race condition that has since 3302168404Spjd * destroyed the parent. 3303168404Spjd * 3304168404Spjd * At this point, we don't know whether it's the source 3305168404Spjd * that doesn't exist anymore, or whether the target 3306168404Spjd * dataset doesn't exist. 3307168404Spjd */ 3308168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3309168404Spjd "no such parent '%s'"), parent); 3310168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3311168404Spjd 3312168404Spjd case EXDEV: 3313168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3314168404Spjd "source and target pools differ")); 3315168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3316168404Spjd errbuf)); 3317168404Spjd 3318168404Spjd default: 3319168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3320168404Spjd errbuf)); 3321168404Spjd } 3322168404Spjd } 3323168404Spjd 3324168404Spjd return (ret); 3325168404Spjd} 3326168404Spjd 3327168404Spjd/* 3328168404Spjd * Promotes the given clone fs to be the clone parent. 3329168404Spjd */ 3330168404Spjdint 3331168404Spjdzfs_promote(zfs_handle_t *zhp) 3332168404Spjd{ 3333168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3334168404Spjd zfs_cmd_t zc = { 0 }; 3335168404Spjd char parent[MAXPATHLEN]; 3336168404Spjd int ret; 3337168404Spjd char errbuf[1024]; 3338168404Spjd 3339168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3340168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3341168404Spjd 3342168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3343168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3344168404Spjd "snapshots can not be promoted")); 3345168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3346168404Spjd } 3347168404Spjd 3348185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3349168404Spjd if (parent[0] == '\0') { 3350168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3351168404Spjd "not a cloned filesystem")); 3352168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3353168404Spjd } 3354168404Spjd 3355185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3356168404Spjd sizeof (zc.zc_value)); 3357168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3358185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3359168404Spjd 3360168404Spjd if (ret != 0) { 3361168404Spjd int save_errno = errno; 3362168404Spjd 3363168404Spjd switch (save_errno) { 3364168404Spjd case EEXIST: 3365219089Spjd /* There is a conflicting snapshot name. */ 3366168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3367219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3368219089Spjd zc.zc_string, parent); 3369168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3370168404Spjd 3371168404Spjd default: 3372168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3373168404Spjd } 3374168404Spjd } 3375168404Spjd return (ret); 3376168404Spjd} 3377168404Spjd 3378168404Spjd/* 3379168404Spjd * Takes a snapshot of the given dataset. 3380168404Spjd */ 3381168404Spjdint 3382185029Spjdzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3383185029Spjd nvlist_t *props) 3384168404Spjd{ 3385168404Spjd const char *delim; 3386185029Spjd char parent[ZFS_MAXNAMELEN]; 3387168404Spjd zfs_handle_t *zhp; 3388168404Spjd zfs_cmd_t zc = { 0 }; 3389168404Spjd int ret; 3390168404Spjd char errbuf[1024]; 3391168404Spjd 3392168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3393168404Spjd "cannot snapshot '%s'"), path); 3394168404Spjd 3395168404Spjd /* validate the target name */ 3396185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3397168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3398168404Spjd 3399185029Spjd if (props) { 3400185029Spjd if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3401185029Spjd props, B_FALSE, NULL, errbuf)) == NULL) 3402185029Spjd return (-1); 3403185029Spjd 3404185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 3405185029Spjd nvlist_free(props); 3406185029Spjd return (-1); 3407185029Spjd } 3408185029Spjd 3409185029Spjd nvlist_free(props); 3410185029Spjd } 3411185029Spjd 3412168404Spjd /* make sure the parent exists and is of the appropriate type */ 3413168404Spjd delim = strchr(path, '@'); 3414168404Spjd (void) strncpy(parent, path, delim - path); 3415168404Spjd parent[delim - path] = '\0'; 3416168404Spjd 3417168404Spjd if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM | 3418168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3419185029Spjd zcmd_free_nvlists(&zc); 3420168404Spjd return (-1); 3421168404Spjd } 3422168404Spjd 3423168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3424168404Spjd (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value)); 3425185029Spjd if (ZFS_IS_VOLUME(zhp)) 3426185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3427185029Spjd else 3428185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3429168404Spjd zc.zc_cookie = recursive; 3430185029Spjd ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc); 3431168404Spjd 3432185029Spjd zcmd_free_nvlists(&zc); 3433185029Spjd 3434168404Spjd /* 3435168404Spjd * if it was recursive, the one that actually failed will be in 3436168404Spjd * zc.zc_name. 3437168404Spjd */ 3438219089Spjd if (ret != 0) { 3439185029Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3440185029Spjd "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); 3441219089Spjd (void) zfs_standard_error(hdl, errno, errbuf); 3442168404Spjd } 3443168404Spjd 3444168404Spjd zfs_close(zhp); 3445168404Spjd 3446168404Spjd return (ret); 3447168404Spjd} 3448168404Spjd 3449168404Spjd/* 3450168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3451168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3452168404Spjd * is a dependent and we should just destroy it without checking the transaction 3453168404Spjd * group. 3454168404Spjd */ 3455168404Spjdtypedef struct rollback_data { 3456168404Spjd const char *cb_target; /* the snapshot */ 3457168404Spjd uint64_t cb_create; /* creation time reference */ 3458185029Spjd boolean_t cb_error; 3459168404Spjd boolean_t cb_dependent; 3460185029Spjd boolean_t cb_force; 3461168404Spjd} rollback_data_t; 3462168404Spjd 3463168404Spjdstatic int 3464168404Spjdrollback_destroy(zfs_handle_t *zhp, void *data) 3465168404Spjd{ 3466168404Spjd rollback_data_t *cbp = data; 3467168404Spjd 3468168404Spjd if (!cbp->cb_dependent) { 3469168404Spjd if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && 3470168404Spjd zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3471168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3472168404Spjd cbp->cb_create) { 3473185029Spjd char *logstr; 3474168404Spjd 3475168404Spjd cbp->cb_dependent = B_TRUE; 3476185029Spjd cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3477185029Spjd rollback_destroy, cbp); 3478168404Spjd cbp->cb_dependent = B_FALSE; 3479168404Spjd 3480185029Spjd logstr = zhp->zfs_hdl->libzfs_log_str; 3481185029Spjd zhp->zfs_hdl->libzfs_log_str = NULL; 3482219089Spjd cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3483185029Spjd zhp->zfs_hdl->libzfs_log_str = logstr; 3484168404Spjd } 3485168404Spjd } else { 3486185029Spjd /* We must destroy this clone; first unmount it */ 3487185029Spjd prop_changelist_t *clp; 3488185029Spjd 3489185029Spjd clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3490185029Spjd cbp->cb_force ? MS_FORCE: 0); 3491185029Spjd if (clp == NULL || changelist_prefix(clp) != 0) { 3492185029Spjd cbp->cb_error = B_TRUE; 3493185029Spjd zfs_close(zhp); 3494185029Spjd return (0); 3495185029Spjd } 3496219089Spjd if (zfs_destroy(zhp, B_FALSE) != 0) 3497185029Spjd cbp->cb_error = B_TRUE; 3498168404Spjd else 3499185029Spjd changelist_remove(clp, zhp->zfs_name); 3500185029Spjd (void) changelist_postfix(clp); 3501185029Spjd changelist_free(clp); 3502168404Spjd } 3503168404Spjd 3504168404Spjd zfs_close(zhp); 3505168404Spjd return (0); 3506168404Spjd} 3507168404Spjd 3508168404Spjd/* 3509168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3510168404Spjd * data changes since then and making it the active dataset. 3511168404Spjd * 3512168404Spjd * Any snapshots more recent than the target are destroyed, along with 3513168404Spjd * their dependents. 3514168404Spjd */ 3515168404Spjdint 3516185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3517168404Spjd{ 3518168404Spjd rollback_data_t cb = { 0 }; 3519185029Spjd int err; 3520185029Spjd zfs_cmd_t zc = { 0 }; 3521185029Spjd boolean_t restore_resv = 0; 3522185029Spjd uint64_t old_volsize, new_volsize; 3523185029Spjd zfs_prop_t resv_prop; 3524168404Spjd 3525185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3526185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3527168404Spjd 3528168404Spjd /* 3529168404Spjd * Destroy all recent snapshots and its dependends. 3530168404Spjd */ 3531185029Spjd cb.cb_force = force; 3532168404Spjd cb.cb_target = snap->zfs_name; 3533168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3534168404Spjd (void) zfs_iter_children(zhp, rollback_destroy, &cb); 3535168404Spjd 3536185029Spjd if (cb.cb_error) 3537185029Spjd return (-1); 3538168404Spjd 3539168404Spjd /* 3540168404Spjd * Now that we have verified that the snapshot is the latest, 3541168404Spjd * rollback to the given snapshot. 3542168404Spjd */ 3543168404Spjd 3544185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3545185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3546185029Spjd return (-1); 3547185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3548185029Spjd restore_resv = 3549185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3550168404Spjd } 3551168404Spjd 3552185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3553185029Spjd 3554185029Spjd if (ZFS_IS_VOLUME(zhp)) 3555185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3556185029Spjd else 3557185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3558185029Spjd 3559168404Spjd /* 3560185029Spjd * We rely on zfs_iter_children() to verify that there are no 3561185029Spjd * newer snapshots for the given dataset. Therefore, we can 3562185029Spjd * simply pass the name on to the ioctl() call. There is still 3563185029Spjd * an unlikely race condition where the user has taken a 3564185029Spjd * snapshot since we verified that this was the most recent. 3565185029Spjd * 3566168404Spjd */ 3567185029Spjd if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { 3568185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3569185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3570185029Spjd zhp->zfs_name); 3571185029Spjd return (err); 3572185029Spjd } 3573168404Spjd 3574185029Spjd /* 3575185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3576185029Spjd * rollback reservation and the volsize has changed then set 3577185029Spjd * the reservation property to the post-rollback volsize. 3578185029Spjd * Make a new handle since the rollback closed the dataset. 3579185029Spjd */ 3580185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3581185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3582185029Spjd if (restore_resv) { 3583185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3584185029Spjd if (old_volsize != new_volsize) 3585185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3586185029Spjd new_volsize); 3587185029Spjd } 3588185029Spjd zfs_close(zhp); 3589185029Spjd } 3590185029Spjd return (err); 3591168404Spjd} 3592168404Spjd 3593168404Spjd/* 3594168404Spjd * Renames the given dataset. 3595168404Spjd */ 3596168404Spjdint 3597226705Spjdzfs_rename(zfs_handle_t *zhp, const char *target, renameflags_t flags) 3598168404Spjd{ 3599168404Spjd int ret; 3600168404Spjd zfs_cmd_t zc = { 0 }; 3601168404Spjd char *delim; 3602168676Spjd prop_changelist_t *cl = NULL; 3603168676Spjd zfs_handle_t *zhrp = NULL; 3604168676Spjd char *parentname = NULL; 3605168404Spjd char parent[ZFS_MAXNAMELEN]; 3606226676Spjd char property[ZFS_MAXPROPLEN]; 3607168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3608168404Spjd char errbuf[1024]; 3609168404Spjd 3610168404Spjd /* if we have the same exact name, just return success */ 3611168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3612168404Spjd return (0); 3613168404Spjd 3614168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3615168404Spjd "cannot rename to '%s'"), target); 3616168404Spjd 3617168404Spjd /* 3618168404Spjd * Make sure the target name is valid 3619168404Spjd */ 3620168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3621168404Spjd if ((strchr(target, '@') == NULL) || 3622168404Spjd *target == '@') { 3623168404Spjd /* 3624168404Spjd * Snapshot target name is abbreviated, 3625168404Spjd * reconstruct full dataset name 3626168404Spjd */ 3627168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3628168404Spjd sizeof (parent)); 3629168404Spjd delim = strchr(parent, '@'); 3630168404Spjd if (strchr(target, '@') == NULL) 3631168404Spjd *(++delim) = '\0'; 3632168404Spjd else 3633168404Spjd *delim = '\0'; 3634168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3635168404Spjd target = parent; 3636168404Spjd } else { 3637168404Spjd /* 3638168404Spjd * Make sure we're renaming within the same dataset. 3639168404Spjd */ 3640168404Spjd delim = strchr(target, '@'); 3641168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3642168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3643168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3644168404Spjd "snapshots must be part of same " 3645168404Spjd "dataset")); 3646168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3647168404Spjd errbuf)); 3648168404Spjd } 3649168404Spjd } 3650185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3651168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3652168404Spjd } else { 3653226705Spjd if (flags.recurse) { 3654168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3655168676Spjd "recursive rename must be a snapshot")); 3656168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3657168676Spjd } 3658168676Spjd 3659185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3660168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3661168404Spjd 3662168404Spjd /* validate parents */ 3663219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3664168404Spjd return (-1); 3665168404Spjd 3666168404Spjd /* make sure we're in the same pool */ 3667168404Spjd verify((delim = strchr(target, '/')) != NULL); 3668168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3669168404Spjd zhp->zfs_name[delim - target] != '/') { 3670168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3671168404Spjd "datasets must be within same pool")); 3672168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3673168404Spjd } 3674168404Spjd 3675168404Spjd /* new name cannot be a child of the current dataset name */ 3676219089Spjd if (is_descendant(zhp->zfs_name, target)) { 3677168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3678219089Spjd "New dataset name cannot be a descendant of " 3679168404Spjd "current dataset name")); 3680168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3681168404Spjd } 3682168404Spjd } 3683168404Spjd 3684168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 3685168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 3686168404Spjd 3687168404Spjd if (getzoneid() == GLOBAL_ZONEID && 3688168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 3689168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3690168404Spjd "dataset is used in a non-global zone")); 3691168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 3692168404Spjd } 3693168404Spjd 3694226705Spjd /* 3695226705Spjd * Avoid unmounting file systems with mountpoint property set to 3696226705Spjd * 'legacy' or 'none' even if -u option is not given. 3697226705Spjd */ 3698226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 3699226705Spjd !flags.recurse && !flags.nounmount && 3700226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 3701226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 3702226705Spjd (strcmp(property, "legacy") == 0 || 3703226705Spjd strcmp(property, "none") == 0)) { 3704226705Spjd flags.nounmount = B_TRUE; 3705226705Spjd } 3706168404Spjd 3707226705Spjd if (flags.recurse) { 3708226705Spjd 3709185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 3710185029Spjd if (parentname == NULL) { 3711185029Spjd ret = -1; 3712185029Spjd goto error; 3713185029Spjd } 3714168676Spjd delim = strchr(parentname, '@'); 3715168676Spjd *delim = '\0'; 3716185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 3717168676Spjd if (zhrp == NULL) { 3718185029Spjd ret = -1; 3719185029Spjd goto error; 3720168676Spjd } 3721168676Spjd 3722168676Spjd } else { 3723226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 3724226705Spjd flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 0)) == NULL) { 3725168676Spjd return (-1); 3726226676Spjd } 3727168676Spjd 3728168676Spjd if (changelist_haszonedchild(cl)) { 3729168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3730168676Spjd "child dataset with inherited mountpoint is used " 3731168676Spjd "in a non-global zone")); 3732168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 3733168676Spjd goto error; 3734168676Spjd } 3735168676Spjd 3736168676Spjd if ((ret = changelist_prefix(cl)) != 0) 3737168676Spjd goto error; 3738168404Spjd } 3739168404Spjd 3740168404Spjd if (ZFS_IS_VOLUME(zhp)) 3741168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3742168404Spjd else 3743168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3744168404Spjd 3745168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3746168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 3747168404Spjd 3748226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 3749226705Spjd if (flags.nounmount) 3750226676Spjd zc.zc_cookie |= 2; 3751168676Spjd 3752185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 3753168676Spjd /* 3754168676Spjd * if it was recursive, the one that actually failed will 3755168676Spjd * be in zc.zc_name 3756168676Spjd */ 3757168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3758185029Spjd "cannot rename '%s'"), zc.zc_name); 3759168404Spjd 3760226705Spjd if (flags.recurse && errno == EEXIST) { 3761168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3762168676Spjd "a child dataset already has a snapshot " 3763168676Spjd "with the new name")); 3764185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3765168676Spjd } else { 3766168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 3767168676Spjd } 3768168676Spjd 3769168404Spjd /* 3770168404Spjd * On failure, we still want to remount any filesystems that 3771168404Spjd * were previously mounted, so we don't alter the system state. 3772168404Spjd */ 3773226705Spjd if (!flags.recurse) 3774168676Spjd (void) changelist_postfix(cl); 3775168404Spjd } else { 3776226705Spjd if (!flags.recurse) { 3777168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 3778168676Spjd ret = changelist_postfix(cl); 3779168676Spjd } 3780168404Spjd } 3781168404Spjd 3782168404Spjderror: 3783168676Spjd if (parentname) { 3784168676Spjd free(parentname); 3785168676Spjd } 3786168676Spjd if (zhrp) { 3787168676Spjd zfs_close(zhrp); 3788168676Spjd } 3789168676Spjd if (cl) { 3790168676Spjd changelist_free(cl); 3791168676Spjd } 3792168404Spjd return (ret); 3793168404Spjd} 3794168404Spjd 3795219089Spjdnvlist_t * 3796219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 3797168404Spjd{ 3798219089Spjd return (zhp->zfs_user_props); 3799168676Spjd} 3800168676Spjd 3801168404Spjdnvlist_t * 3802219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 3803168404Spjd{ 3804219089Spjd if (zhp->zfs_recvd_props == NULL) 3805219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 3806219089Spjd return (NULL); 3807219089Spjd return (zhp->zfs_recvd_props); 3808168404Spjd} 3809168404Spjd 3810168404Spjd/* 3811168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 3812168404Spjd * display, and their maximum widths. This does two main things: 3813168404Spjd * 3814168404Spjd * - If this is a list of all properties, then expand the list to include 3815168404Spjd * all native properties, and set a flag so that for each dataset we look 3816168404Spjd * for new unique user properties and add them to the list. 3817168404Spjd * 3818168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 3819219089Spjd * so that we can size the column appropriately. If the user has 3820219089Spjd * requested received property values, we also need to compute the width 3821219089Spjd * of the RECEIVED column. 3822168404Spjd */ 3823168404Spjdint 3824219089Spjdzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) 3825168404Spjd{ 3826168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3827185029Spjd zprop_list_t *entry; 3828185029Spjd zprop_list_t **last, **start; 3829168404Spjd nvlist_t *userprops, *propval; 3830168404Spjd nvpair_t *elem; 3831168404Spjd char *strval; 3832168404Spjd char buf[ZFS_MAXPROPLEN]; 3833168404Spjd 3834185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 3835168404Spjd return (-1); 3836168404Spjd 3837168404Spjd userprops = zfs_get_user_props(zhp); 3838168404Spjd 3839168404Spjd entry = *plp; 3840168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 3841168404Spjd /* 3842168404Spjd * Go through and add any user properties as necessary. We 3843168404Spjd * start by incrementing our list pointer to the first 3844168404Spjd * non-native property. 3845168404Spjd */ 3846168404Spjd start = plp; 3847168404Spjd while (*start != NULL) { 3848185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 3849168404Spjd break; 3850168404Spjd start = &(*start)->pl_next; 3851168404Spjd } 3852168404Spjd 3853168404Spjd elem = NULL; 3854168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 3855168404Spjd /* 3856168404Spjd * See if we've already found this property in our list. 3857168404Spjd */ 3858168404Spjd for (last = start; *last != NULL; 3859168404Spjd last = &(*last)->pl_next) { 3860168404Spjd if (strcmp((*last)->pl_user_prop, 3861168404Spjd nvpair_name(elem)) == 0) 3862168404Spjd break; 3863168404Spjd } 3864168404Spjd 3865168404Spjd if (*last == NULL) { 3866168404Spjd if ((entry = zfs_alloc(hdl, 3867185029Spjd sizeof (zprop_list_t))) == NULL || 3868168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 3869168404Spjd nvpair_name(elem)))) == NULL) { 3870168404Spjd free(entry); 3871168404Spjd return (-1); 3872168404Spjd } 3873168404Spjd 3874185029Spjd entry->pl_prop = ZPROP_INVAL; 3875168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 3876168404Spjd entry->pl_all = B_TRUE; 3877168404Spjd *last = entry; 3878168404Spjd } 3879168404Spjd } 3880168404Spjd } 3881168404Spjd 3882168404Spjd /* 3883168404Spjd * Now go through and check the width of any non-fixed columns 3884168404Spjd */ 3885168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 3886168404Spjd if (entry->pl_fixed) 3887168404Spjd continue; 3888168404Spjd 3889185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 3890168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 3891168404Spjd buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { 3892168404Spjd if (strlen(buf) > entry->pl_width) 3893168404Spjd entry->pl_width = strlen(buf); 3894168404Spjd } 3895219089Spjd if (received && zfs_prop_get_recvd(zhp, 3896219089Spjd zfs_prop_to_name(entry->pl_prop), 3897219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3898219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3899219089Spjd entry->pl_recvd_width = strlen(buf); 3900219089Spjd } else { 3901219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 3902219089Spjd &propval) == 0) { 3903219089Spjd verify(nvlist_lookup_string(propval, 3904219089Spjd ZPROP_VALUE, &strval) == 0); 3905219089Spjd if (strlen(strval) > entry->pl_width) 3906219089Spjd entry->pl_width = strlen(strval); 3907219089Spjd } 3908219089Spjd if (received && zfs_prop_get_recvd(zhp, 3909219089Spjd entry->pl_user_prop, 3910219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3911219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3912219089Spjd entry->pl_recvd_width = strlen(buf); 3913168404Spjd } 3914168404Spjd } 3915168404Spjd 3916168404Spjd return (0); 3917168404Spjd} 3918168404Spjd 3919185029Spjdint 3920185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 3921209962Smm char *resource, void *export, void *sharetab, 3922209962Smm int sharemax, zfs_share_op_t operation) 3923185029Spjd{ 3924185029Spjd zfs_cmd_t zc = { 0 }; 3925185029Spjd int error; 3926185029Spjd 3927185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 3928185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 3929209962Smm if (resource) 3930209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 3931185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 3932185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 3933185029Spjd zc.zc_share.z_sharetype = operation; 3934185029Spjd zc.zc_share.z_sharemax = sharemax; 3935185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 3936185029Spjd return (error); 3937185029Spjd} 3938185029Spjd 3939205198Sdelphijvoid 3940205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 3941205198Sdelphij{ 3942205198Sdelphij nvpair_t *curr; 3943205198Sdelphij 3944205198Sdelphij /* 3945205198Sdelphij * Keep a reference to the props-table against which we prune the 3946205198Sdelphij * properties. 3947205198Sdelphij */ 3948205198Sdelphij zhp->zfs_props_table = props; 3949205198Sdelphij 3950205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 3951205198Sdelphij 3952205198Sdelphij while (curr) { 3953205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 3954205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 3955205198Sdelphij 3956206199Sdelphij /* 3957219089Spjd * User properties will result in ZPROP_INVAL, and since we 3958219089Spjd * only know how to prune standard ZFS properties, we always 3959219089Spjd * leave these in the list. This can also happen if we 3960219089Spjd * encounter an unknown DSL property (when running older 3961219089Spjd * software, for example). 3962206199Sdelphij */ 3963206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 3964205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 3965205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 3966205198Sdelphij curr = next; 3967205198Sdelphij } 3968205198Sdelphij} 3969205198Sdelphij 3970209962Smm#ifdef sun 3971209962Smmstatic int 3972209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 3973209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 3974209962Smm{ 3975209962Smm zfs_cmd_t zc = { 0 }; 3976209962Smm nvlist_t *nvlist = NULL; 3977209962Smm int error; 3978209962Smm 3979209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 3980209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 3981209962Smm zc.zc_cookie = (uint64_t)cmd; 3982209962Smm 3983209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 3984209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 3985209962Smm (void) no_memory(hdl); 3986209962Smm return (NULL); 3987209962Smm } 3988209962Smm } 3989209962Smm 3990209962Smm switch (cmd) { 3991209962Smm case ZFS_SMB_ACL_ADD: 3992209962Smm case ZFS_SMB_ACL_REMOVE: 3993209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 3994209962Smm break; 3995209962Smm case ZFS_SMB_ACL_RENAME: 3996209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 3997209962Smm resource1) != 0) { 3998209962Smm (void) no_memory(hdl); 3999209962Smm return (-1); 4000209962Smm } 4001209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4002209962Smm resource2) != 0) { 4003209962Smm (void) no_memory(hdl); 4004209962Smm return (-1); 4005209962Smm } 4006209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4007209962Smm nvlist_free(nvlist); 4008209962Smm return (-1); 4009209962Smm } 4010209962Smm break; 4011209962Smm case ZFS_SMB_ACL_PURGE: 4012209962Smm break; 4013209962Smm default: 4014209962Smm return (-1); 4015209962Smm } 4016209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4017209962Smm if (nvlist) 4018209962Smm nvlist_free(nvlist); 4019209962Smm return (error); 4020209962Smm} 4021209962Smm 4022209962Smmint 4023209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4024209962Smm char *path, char *resource) 4025209962Smm{ 4026209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4027209962Smm resource, NULL)); 4028209962Smm} 4029209962Smm 4030209962Smmint 4031209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4032209962Smm char *path, char *resource) 4033209962Smm{ 4034209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4035209962Smm resource, NULL)); 4036209962Smm} 4037209962Smm 4038209962Smmint 4039209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4040209962Smm{ 4041209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4042209962Smm NULL, NULL)); 4043209962Smm} 4044209962Smm 4045209962Smmint 4046209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4047209962Smm char *oldname, char *newname) 4048209962Smm{ 4049209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4050209962Smm oldname, newname)); 4051209962Smm} 4052209962Smm#endif /* sun */ 4053209962Smm 4054209962Smmint 4055209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4056209962Smm zfs_userspace_cb_t func, void *arg) 4057209962Smm{ 4058209962Smm zfs_cmd_t zc = { 0 }; 4059209962Smm int error; 4060209962Smm zfs_useracct_t buf[100]; 4061209962Smm 4062228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4063209962Smm 4064209962Smm zc.zc_objset_type = type; 4065209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4066209962Smm 4067209962Smm /* CONSTCOND */ 4068209962Smm while (1) { 4069209962Smm zfs_useracct_t *zua = buf; 4070209962Smm 4071209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4072209962Smm error = ioctl(zhp->zfs_hdl->libzfs_fd, 4073209962Smm ZFS_IOC_USERSPACE_MANY, &zc); 4074209962Smm if (error || zc.zc_nvlist_dst_size == 0) 4075209962Smm break; 4076209962Smm 4077209962Smm while (zc.zc_nvlist_dst_size > 0) { 4078209962Smm error = func(arg, zua->zu_domain, zua->zu_rid, 4079209962Smm zua->zu_space); 4080209962Smm if (error != 0) 4081209962Smm return (error); 4082209962Smm zua++; 4083209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4084209962Smm } 4085209962Smm } 4086209962Smm 4087209962Smm return (error); 4088209962Smm} 4089209962Smm 4090219089Spjdint 4091219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4092219089Spjd boolean_t recursive, boolean_t temphold, boolean_t enoent_ok, 4093219089Spjd int cleanup_fd, uint64_t dsobj, uint64_t createtxg) 4094219089Spjd{ 4095219089Spjd zfs_cmd_t zc = { 0 }; 4096219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4097219089Spjd 4098219089Spjd ASSERT(!recursive || dsobj == 0); 4099219089Spjd 4100219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4101219089Spjd (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 4102219089Spjd if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) 4103219089Spjd >= sizeof (zc.zc_string)) 4104219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); 4105219089Spjd zc.zc_cookie = recursive; 4106219089Spjd zc.zc_temphold = temphold; 4107219089Spjd zc.zc_cleanup_fd = cleanup_fd; 4108219089Spjd zc.zc_sendobj = dsobj; 4109219089Spjd zc.zc_createtxg = createtxg; 4110219089Spjd 4111219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { 4112219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4113219089Spjd 4114219089Spjd /* 4115219089Spjd * if it was recursive, the one that actually failed will be in 4116219089Spjd * zc.zc_name. 4117219089Spjd */ 4118219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4119219089Spjd "cannot hold '%s@%s'"), zc.zc_name, snapname); 4120219089Spjd switch (errno) { 4121219089Spjd case E2BIG: 4122219089Spjd /* 4123219089Spjd * Temporary tags wind up having the ds object id 4124219089Spjd * prepended. So even if we passed the length check 4125219089Spjd * above, it's still possible for the tag to wind 4126219089Spjd * up being slightly too long. 4127219089Spjd */ 4128219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); 4129219089Spjd case ENOTSUP: 4130219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4131219089Spjd "pool must be upgraded")); 4132219089Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4133219089Spjd case EINVAL: 4134219089Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4135219089Spjd case EEXIST: 4136219089Spjd return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); 4137219089Spjd case ENOENT: 4138219089Spjd if (enoent_ok) 4139219089Spjd return (ENOENT); 4140219089Spjd /* FALLTHROUGH */ 4141219089Spjd default: 4142219089Spjd return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4143219089Spjd } 4144219089Spjd } 4145219089Spjd 4146219089Spjd return (0); 4147219089Spjd} 4148219089Spjd 4149219089Spjdint 4150219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4151219089Spjd boolean_t recursive) 4152219089Spjd{ 4153219089Spjd zfs_cmd_t zc = { 0 }; 4154219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4155219089Spjd 4156219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4157219089Spjd (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 4158219089Spjd if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) 4159219089Spjd >= sizeof (zc.zc_string)) 4160219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); 4161219089Spjd zc.zc_cookie = recursive; 4162219089Spjd 4163219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { 4164219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4165219089Spjd 4166219089Spjd /* 4167219089Spjd * if it was recursive, the one that actually failed will be in 4168219089Spjd * zc.zc_name. 4169219089Spjd */ 4170219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4171219089Spjd "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, 4172219089Spjd snapname); 4173219089Spjd switch (errno) { 4174219089Spjd case ESRCH: 4175219089Spjd return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); 4176219089Spjd case ENOTSUP: 4177219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4178219089Spjd "pool must be upgraded")); 4179219089Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4180219089Spjd case EINVAL: 4181219089Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4182219089Spjd default: 4183219089Spjd return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4184219089Spjd } 4185219089Spjd } 4186219089Spjd 4187219089Spjd return (0); 4188219089Spjd} 4189219089Spjd 4190219089Spjdint 4191219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4192219089Spjd{ 4193219089Spjd zfs_cmd_t zc = { 0 }; 4194219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4195219089Spjd int nvsz = 2048; 4196219089Spjd void *nvbuf; 4197219089Spjd int err = 0; 4198219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4199219089Spjd 4200219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4201219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4202219089Spjd 4203219089Spjdtryagain: 4204219089Spjd 4205219089Spjd nvbuf = malloc(nvsz); 4206219089Spjd if (nvbuf == NULL) { 4207219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4208219089Spjd goto out; 4209219089Spjd } 4210219089Spjd 4211219089Spjd zc.zc_nvlist_dst_size = nvsz; 4212219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4213219089Spjd 4214219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4215219089Spjd 4216219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_GET_FSACL, &zc) != 0) { 4217219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4218219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4219219089Spjd zc.zc_name); 4220219089Spjd switch (errno) { 4221219089Spjd case ENOMEM: 4222219089Spjd free(nvbuf); 4223219089Spjd nvsz = zc.zc_nvlist_dst_size; 4224219089Spjd goto tryagain; 4225219089Spjd 4226219089Spjd case ENOTSUP: 4227219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4228219089Spjd "pool must be upgraded")); 4229219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4230219089Spjd break; 4231219089Spjd case EINVAL: 4232219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4233219089Spjd break; 4234219089Spjd case ENOENT: 4235219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4236219089Spjd break; 4237219089Spjd default: 4238219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4239219089Spjd break; 4240219089Spjd } 4241219089Spjd } else { 4242219089Spjd /* success */ 4243219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4244219089Spjd if (rc) { 4245219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4246219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4247219089Spjd zc.zc_name); 4248219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4249219089Spjd } 4250219089Spjd } 4251219089Spjd 4252219089Spjd free(nvbuf); 4253219089Spjdout: 4254219089Spjd return (err); 4255219089Spjd} 4256219089Spjd 4257219089Spjdint 4258219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4259219089Spjd{ 4260219089Spjd zfs_cmd_t zc = { 0 }; 4261219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4262219089Spjd char *nvbuf; 4263219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4264219089Spjd size_t nvsz; 4265219089Spjd int err; 4266219089Spjd 4267219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4268219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4269219089Spjd 4270219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4271219089Spjd assert(err == 0); 4272219089Spjd 4273219089Spjd nvbuf = malloc(nvsz); 4274219089Spjd 4275219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4276219089Spjd assert(err == 0); 4277219089Spjd 4278219089Spjd zc.zc_nvlist_src_size = nvsz; 4279219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4280219089Spjd zc.zc_perm_action = un; 4281219089Spjd 4282219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4283219089Spjd 4284219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4285219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4286219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4287219089Spjd zc.zc_name); 4288219089Spjd switch (errno) { 4289219089Spjd case ENOTSUP: 4290219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4291219089Spjd "pool must be upgraded")); 4292219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4293219089Spjd break; 4294219089Spjd case EINVAL: 4295219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4296219089Spjd break; 4297219089Spjd case ENOENT: 4298219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4299219089Spjd break; 4300219089Spjd default: 4301219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4302219089Spjd break; 4303219089Spjd } 4304219089Spjd } 4305219089Spjd 4306219089Spjd free(nvbuf); 4307219089Spjd 4308219089Spjd return (err); 4309219089Spjd} 4310219089Spjd 4311219089Spjdint 4312219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4313219089Spjd{ 4314219089Spjd zfs_cmd_t zc = { 0 }; 4315219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4316219089Spjd int nvsz = 2048; 4317219089Spjd void *nvbuf; 4318219089Spjd int err = 0; 4319219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4320219089Spjd 4321219089Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 4322219089Spjd 4323219089Spjdtryagain: 4324219089Spjd 4325219089Spjd nvbuf = malloc(nvsz); 4326219089Spjd if (nvbuf == NULL) { 4327219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4328219089Spjd goto out; 4329219089Spjd } 4330219089Spjd 4331219089Spjd zc.zc_nvlist_dst_size = nvsz; 4332219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4333219089Spjd 4334219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4335219089Spjd 4336219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_GET_HOLDS, &zc) != 0) { 4337219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4338219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4339219089Spjd zc.zc_name); 4340219089Spjd switch (errno) { 4341219089Spjd case ENOMEM: 4342219089Spjd free(nvbuf); 4343219089Spjd nvsz = zc.zc_nvlist_dst_size; 4344219089Spjd goto tryagain; 4345219089Spjd 4346219089Spjd case ENOTSUP: 4347219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4348219089Spjd "pool must be upgraded")); 4349219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4350219089Spjd break; 4351219089Spjd case EINVAL: 4352219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4353219089Spjd break; 4354219089Spjd case ENOENT: 4355219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4356219089Spjd break; 4357219089Spjd default: 4358219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4359219089Spjd break; 4360219089Spjd } 4361219089Spjd } else { 4362219089Spjd /* success */ 4363219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4364219089Spjd if (rc) { 4365219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4366219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4367219089Spjd zc.zc_name); 4368219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4369219089Spjd } 4370219089Spjd } 4371219089Spjd 4372219089Spjd free(nvbuf); 4373219089Spjdout: 4374219089Spjd return (err); 4375219089Spjd} 4376219089Spjd 4377219089Spjduint64_t 4378219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4379219089Spjd{ 4380219089Spjd uint64_t numdb; 4381219089Spjd uint64_t nblocks, volblocksize; 4382219089Spjd int ncopies; 4383219089Spjd char *strval; 4384219089Spjd 4385219089Spjd if (nvlist_lookup_string(props, 4386219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4387219089Spjd ncopies = atoi(strval); 4388219089Spjd else 4389219089Spjd ncopies = 1; 4390219089Spjd if (nvlist_lookup_uint64(props, 4391219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4392219089Spjd &volblocksize) != 0) 4393219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4394219089Spjd nblocks = volsize/volblocksize; 4395219089Spjd /* start with metadnode L0-L6 */ 4396219089Spjd numdb = 7; 4397219089Spjd /* calculate number of indirects */ 4398219089Spjd while (nblocks > 1) { 4399219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4400219089Spjd nblocks /= DNODES_PER_LEVEL; 4401219089Spjd numdb += nblocks; 4402219089Spjd } 4403219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4404219089Spjd volsize *= ncopies; 4405219089Spjd /* 4406219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4407219089Spjd * compressed, but in practice they compress down to about 4408219089Spjd * 1100 bytes 4409219089Spjd */ 4410219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4411219089Spjd volsize += numdb; 4412219089Spjd return (volsize); 4413219089Spjd} 4414219089Spjd 4415168404Spjd/* 4416168404Spjd * Attach/detach the given filesystem to/from the given jail. 4417168404Spjd */ 4418168404Spjdint 4419168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4420168404Spjd{ 4421168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4422168404Spjd zfs_cmd_t zc = { 0 }; 4423168404Spjd char errbuf[1024]; 4424224525Smm unsigned long cmd; 4425224525Smm int ret; 4426168404Spjd 4427168404Spjd if (attach) { 4428168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4429168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4430168404Spjd } else { 4431168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4432168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4433168404Spjd } 4434168404Spjd 4435168404Spjd switch (zhp->zfs_type) { 4436168404Spjd case ZFS_TYPE_VOLUME: 4437168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4438168404Spjd "volumes can not be jailed")); 4439168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4440168404Spjd case ZFS_TYPE_SNAPSHOT: 4441168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4442168404Spjd "snapshots can not be jailed")); 4443168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4444168404Spjd } 4445168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4446168404Spjd 4447168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4448168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4449168404Spjd zc.zc_jailid = jailid; 4450168404Spjd 4451168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4452168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4453168404Spjd zfs_standard_error(hdl, errno, errbuf); 4454168404Spjd 4455168404Spjd return (ret); 4456168404Spjd} 4457