libzfs_dataset.c revision 321522
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. 24264835Sdelphij * Copyright (c) 2013, Joyent, Inc. All rights reserved. 25289500Smav * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 26252219Sdelphij * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved. 27307046Smav * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. 28307046Smav * Copyright (c) 2013 Martin Matuska. All rights reserved. 29251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 30296519Smav * Copyright (c) 2014 Integros [integros.com] 31307050Smav * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> 32307106Smav * Copyright 2016 Nexenta Systems, Inc. 33168404Spjd */ 34168404Spjd 35168404Spjd#include <ctype.h> 36168404Spjd#include <errno.h> 37168404Spjd#include <libintl.h> 38168404Spjd#include <math.h> 39168404Spjd#include <stdio.h> 40168404Spjd#include <stdlib.h> 41168404Spjd#include <strings.h> 42168404Spjd#include <unistd.h> 43185029Spjd#include <stddef.h> 44168404Spjd#include <zone.h> 45168404Spjd#include <fcntl.h> 46168404Spjd#include <sys/mntent.h> 47168404Spjd#include <sys/mount.h> 48185029Spjd#include <priv.h> 49185029Spjd#include <pwd.h> 50185029Spjd#include <grp.h> 51185029Spjd#include <stddef.h> 52209962Smm#include <idmap.h> 53168404Spjd 54219089Spjd#include <sys/dnode.h> 55168404Spjd#include <sys/spa.h> 56168404Spjd#include <sys/zap.h> 57209962Smm#include <sys/misc.h> 58168404Spjd#include <libzfs.h> 59168404Spjd 60168404Spjd#include "zfs_namecheck.h" 61168404Spjd#include "zfs_prop.h" 62168404Spjd#include "libzfs_impl.h" 63185029Spjd#include "zfs_deleg.h" 64168404Spjd 65209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 66209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 67168676Spjd 68168404Spjd/* 69168404Spjd * Given a single type (not a mask of types), return the type in a human 70168404Spjd * readable form. 71168404Spjd */ 72168404Spjdconst char * 73168404Spjdzfs_type_to_name(zfs_type_t type) 74168404Spjd{ 75168404Spjd switch (type) { 76168404Spjd case ZFS_TYPE_FILESYSTEM: 77168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 78168404Spjd case ZFS_TYPE_SNAPSHOT: 79168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 80168404Spjd case ZFS_TYPE_VOLUME: 81168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 82307050Smav case ZFS_TYPE_POOL: 83307050Smav return (dgettext(TEXT_DOMAIN, "pool")); 84307050Smav case ZFS_TYPE_BOOKMARK: 85307050Smav return (dgettext(TEXT_DOMAIN, "bookmark")); 86307050Smav default: 87307050Smav assert(!"unhandled zfs_type_t"); 88168404Spjd } 89168404Spjd 90168404Spjd return (NULL); 91168404Spjd} 92168404Spjd 93168404Spjd/* 94168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 95209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 96209962Smm * explain exactly why the name was not valid. 97168404Spjd */ 98219089Spjdint 99185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 100185029Spjd boolean_t modifying) 101168404Spjd{ 102168404Spjd namecheck_err_t why; 103168404Spjd char what; 104168404Spjd 105219089Spjd (void) zfs_prop_get_table(); 106168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 107168404Spjd if (hdl != NULL) { 108168404Spjd switch (why) { 109168404Spjd case NAME_ERR_TOOLONG: 110168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 111168404Spjd "name is too long")); 112168404Spjd break; 113168404Spjd 114168404Spjd case NAME_ERR_LEADING_SLASH: 115168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 116168404Spjd "leading slash in name")); 117168404Spjd break; 118168404Spjd 119168404Spjd case NAME_ERR_EMPTY_COMPONENT: 120168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 121168404Spjd "empty component in name")); 122168404Spjd break; 123168404Spjd 124168404Spjd case NAME_ERR_TRAILING_SLASH: 125168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 126168404Spjd "trailing slash in name")); 127168404Spjd break; 128168404Spjd 129168404Spjd case NAME_ERR_INVALCHAR: 130168404Spjd zfs_error_aux(hdl, 131168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 132168404Spjd "'%c' in name"), what); 133168404Spjd break; 134168404Spjd 135168404Spjd case NAME_ERR_MULTIPLE_AT: 136168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 137168404Spjd "multiple '@' delimiters in name")); 138168404Spjd break; 139168404Spjd 140168404Spjd case NAME_ERR_NOLETTER: 141168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 142168404Spjd "pool doesn't begin with a letter")); 143168404Spjd break; 144168404Spjd 145168404Spjd case NAME_ERR_RESERVED: 146168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 147168404Spjd "name is reserved")); 148168404Spjd break; 149168404Spjd 150168404Spjd case NAME_ERR_DISKLIKE: 151168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 152168404Spjd "reserved disk name")); 153168404Spjd break; 154307050Smav 155307050Smav default: 156307050Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 157307050Smav "(%d) not defined"), why); 158307050Smav break; 159168404Spjd } 160168404Spjd } 161168404Spjd 162168404Spjd return (0); 163168404Spjd } 164168404Spjd 165168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 166168404Spjd if (hdl != NULL) 167168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 168168404Spjd "snapshot delimiter '@' in filesystem name")); 169168404Spjd return (0); 170168404Spjd } 171168404Spjd 172168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 173168404Spjd if (hdl != NULL) 174168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 175168404Spjd "missing '@' delimiter in snapshot name")); 176168404Spjd return (0); 177168404Spjd } 178168404Spjd 179185029Spjd if (modifying && strchr(path, '%') != NULL) { 180185029Spjd if (hdl != NULL) 181185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 182185029Spjd "invalid character %c in name"), '%'); 183185029Spjd return (0); 184185029Spjd } 185185029Spjd 186168404Spjd return (-1); 187168404Spjd} 188168404Spjd 189168404Spjdint 190168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 191168404Spjd{ 192185029Spjd if (type == ZFS_TYPE_POOL) 193185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 194185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 195168404Spjd} 196168404Spjd 197168404Spjd/* 198168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 199168404Spjd * properties into a separate nvlist. 200168404Spjd */ 201185029Spjdstatic nvlist_t * 202185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 203168404Spjd{ 204168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 205168404Spjd nvpair_t *elem; 206168404Spjd nvlist_t *propval; 207185029Spjd nvlist_t *nvl; 208168404Spjd 209185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 210185029Spjd (void) no_memory(hdl); 211185029Spjd return (NULL); 212185029Spjd } 213168404Spjd 214168404Spjd elem = NULL; 215185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 216168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 217168404Spjd continue; 218168404Spjd 219168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 220185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 221185029Spjd nvlist_free(nvl); 222185029Spjd (void) no_memory(hdl); 223185029Spjd return (NULL); 224185029Spjd } 225168404Spjd } 226168404Spjd 227185029Spjd return (nvl); 228168404Spjd} 229168404Spjd 230185029Spjdstatic zpool_handle_t * 231185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 232185029Spjd{ 233185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 234185029Spjd zpool_handle_t *zph; 235185029Spjd 236185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 237185029Spjd if (hdl->libzfs_pool_handles != NULL) 238185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 239185029Spjd hdl->libzfs_pool_handles = zph; 240185029Spjd } 241185029Spjd return (zph); 242185029Spjd} 243185029Spjd 244185029Spjdstatic zpool_handle_t * 245185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 246185029Spjd{ 247185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 248185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 249185029Spjd 250185029Spjd while ((zph != NULL) && 251185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 252185029Spjd zph = zph->zpool_next; 253185029Spjd return (zph); 254185029Spjd} 255185029Spjd 256168404Spjd/* 257185029Spjd * Returns a handle to the pool that contains the provided dataset. 258185029Spjd * If a handle to that pool already exists then that handle is returned. 259185029Spjd * Otherwise, a new handle is created and added to the list of handles. 260185029Spjd */ 261185029Spjdstatic zpool_handle_t * 262185029Spjdzpool_handle(zfs_handle_t *zhp) 263185029Spjd{ 264185029Spjd char *pool_name; 265185029Spjd int len; 266185029Spjd zpool_handle_t *zph; 267185029Spjd 268260183Sdelphij len = strcspn(zhp->zfs_name, "/@#") + 1; 269185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 270185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 271185029Spjd 272185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 273185029Spjd if (zph == NULL) 274185029Spjd zph = zpool_add_handle(zhp, pool_name); 275185029Spjd 276185029Spjd free(pool_name); 277185029Spjd return (zph); 278185029Spjd} 279185029Spjd 280185029Spjdvoid 281185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 282185029Spjd{ 283185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 284185029Spjd 285185029Spjd while (zph != NULL) { 286185029Spjd next = zph->zpool_next; 287185029Spjd zpool_close(zph); 288185029Spjd zph = next; 289185029Spjd } 290185029Spjd hdl->libzfs_pool_handles = NULL; 291185029Spjd} 292185029Spjd 293185029Spjd/* 294168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 295168404Spjd */ 296219089Spjdstatic int 297209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 298168404Spjd{ 299168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 300168404Spjd 301209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 302168404Spjd 303209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 304168404Spjd if (errno == ENOMEM) { 305209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 306168404Spjd return (-1); 307168404Spjd } 308168404Spjd } else { 309168404Spjd return (-1); 310168404Spjd } 311168404Spjd } 312209962Smm return (0); 313209962Smm} 314168404Spjd 315219089Spjd/* 316219089Spjd * Utility function to get the received properties of the given object. 317219089Spjd */ 318209962Smmstatic int 319219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 320219089Spjd{ 321219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 322219089Spjd nvlist_t *recvdprops; 323219089Spjd zfs_cmd_t zc = { 0 }; 324219089Spjd int err; 325219089Spjd 326219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 327219089Spjd return (-1); 328219089Spjd 329219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 330219089Spjd 331219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 332219089Spjd if (errno == ENOMEM) { 333219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 334219089Spjd return (-1); 335219089Spjd } 336219089Spjd } else { 337219089Spjd zcmd_free_nvlists(&zc); 338219089Spjd return (-1); 339219089Spjd } 340219089Spjd } 341219089Spjd 342219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 343219089Spjd zcmd_free_nvlists(&zc); 344219089Spjd if (err != 0) 345219089Spjd return (-1); 346219089Spjd 347219089Spjd nvlist_free(zhp->zfs_recvd_props); 348219089Spjd zhp->zfs_recvd_props = recvdprops; 349219089Spjd 350219089Spjd return (0); 351219089Spjd} 352219089Spjd 353219089Spjdstatic int 354209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 355209962Smm{ 356209962Smm nvlist_t *allprops, *userprops; 357168404Spjd 358209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 359209962Smm 360209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 361168404Spjd return (-1); 362168404Spjd } 363168404Spjd 364209962Smm /* 365209962Smm * XXX Why do we store the user props separately, in addition to 366209962Smm * storing them in zfs_props? 367209962Smm */ 368185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 369185029Spjd nvlist_free(allprops); 370168404Spjd return (-1); 371185029Spjd } 372168404Spjd 373185029Spjd nvlist_free(zhp->zfs_props); 374185029Spjd nvlist_free(zhp->zfs_user_props); 375185029Spjd 376185029Spjd zhp->zfs_props = allprops; 377185029Spjd zhp->zfs_user_props = userprops; 378185029Spjd 379168404Spjd return (0); 380168404Spjd} 381168404Spjd 382209962Smmstatic int 383209962Smmget_stats(zfs_handle_t *zhp) 384209962Smm{ 385209962Smm int rc = 0; 386209962Smm zfs_cmd_t zc = { 0 }; 387209962Smm 388209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 389209962Smm return (-1); 390209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 391209962Smm rc = -1; 392209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 393209962Smm rc = -1; 394209962Smm zcmd_free_nvlists(&zc); 395209962Smm return (rc); 396209962Smm} 397209962Smm 398168404Spjd/* 399168404Spjd * Refresh the properties currently stored in the handle. 400168404Spjd */ 401168404Spjdvoid 402168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 403168404Spjd{ 404168404Spjd (void) get_stats(zhp); 405168404Spjd} 406168404Spjd 407168404Spjd/* 408168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 409168404Spjd * zfs_iter_* to create child handles on the fly. 410168404Spjd */ 411209962Smmstatic int 412209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 413168404Spjd{ 414219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 415209962Smm return (-1); 416168404Spjd 417168404Spjd /* 418168404Spjd * We've managed to open the dataset and gather statistics. Determine 419168404Spjd * the high-level type. 420168404Spjd */ 421168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 422168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 423168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 424168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 425168404Spjd else 426168404Spjd abort(); 427168404Spjd 428168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 429168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 430168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 431168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 432168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 433168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 434168404Spjd else 435168404Spjd abort(); /* we should never see any other types */ 436168404Spjd 437219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 438219089Spjd return (-1); 439219089Spjd 440209962Smm return (0); 441209962Smm} 442209962Smm 443209962Smmzfs_handle_t * 444209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 445209962Smm{ 446209962Smm zfs_cmd_t zc = { 0 }; 447209962Smm 448209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 449209962Smm 450209962Smm if (zhp == NULL) 451209962Smm return (NULL); 452209962Smm 453209962Smm zhp->zfs_hdl = hdl; 454209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 455209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 456209962Smm free(zhp); 457209962Smm return (NULL); 458209962Smm } 459209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 460209962Smm zcmd_free_nvlists(&zc); 461209962Smm free(zhp); 462209962Smm return (NULL); 463209962Smm } 464209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 465209962Smm free(zhp); 466209962Smm zhp = NULL; 467209962Smm } 468209962Smm zcmd_free_nvlists(&zc); 469168404Spjd return (zhp); 470168404Spjd} 471168404Spjd 472228103Smmzfs_handle_t * 473209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 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, zc->zc_name, sizeof (zhp->zfs_name)); 482209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 483209962Smm free(zhp); 484209962Smm return (NULL); 485209962Smm } 486209962Smm return (zhp); 487209962Smm} 488209962Smm 489228103Smmzfs_handle_t * 490230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 491230438Spjd{ 492230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 493230438Spjd 494230438Spjd if (zhp == NULL) 495230438Spjd return (NULL); 496230438Spjd 497230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 498230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 499230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 500230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 501230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 502230438Spjd return (zhp); 503230438Spjd} 504230438Spjd 505230438Spjdzfs_handle_t * 506228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 507228103Smm{ 508228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 509228103Smm 510228103Smm if (zhp == NULL) 511228103Smm return (NULL); 512228103Smm 513228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 514228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 515228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 516228103Smm sizeof (zhp->zfs_name)); 517228103Smm zhp->zfs_type = zhp_orig->zfs_type; 518228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 519228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 520228103Smm if (zhp_orig->zfs_props != NULL) { 521228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 522228103Smm (void) no_memory(zhp->zfs_hdl); 523228103Smm zfs_close(zhp); 524228103Smm return (NULL); 525228103Smm } 526228103Smm } 527228103Smm if (zhp_orig->zfs_user_props != NULL) { 528228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 529228103Smm &zhp->zfs_user_props, 0) != 0) { 530228103Smm (void) no_memory(zhp->zfs_hdl); 531228103Smm zfs_close(zhp); 532228103Smm return (NULL); 533228103Smm } 534228103Smm } 535228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 536228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 537228103Smm &zhp->zfs_recvd_props, 0)) { 538228103Smm (void) no_memory(zhp->zfs_hdl); 539228103Smm zfs_close(zhp); 540228103Smm return (NULL); 541228103Smm } 542228103Smm } 543228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 544228103Smm if (zhp_orig->zfs_mntopts != NULL) { 545228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 546228103Smm zhp_orig->zfs_mntopts); 547228103Smm } 548228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 549228103Smm return (zhp); 550228103Smm} 551228103Smm 552260183Sdelphijboolean_t 553260183Sdelphijzfs_bookmark_exists(const char *path) 554260183Sdelphij{ 555260183Sdelphij nvlist_t *bmarks; 556260183Sdelphij nvlist_t *props; 557307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 558260183Sdelphij char *bmark_name; 559260183Sdelphij char *pound; 560260183Sdelphij int err; 561260183Sdelphij boolean_t rv; 562260183Sdelphij 563260183Sdelphij 564260183Sdelphij (void) strlcpy(fsname, path, sizeof (fsname)); 565260183Sdelphij pound = strchr(fsname, '#'); 566260183Sdelphij if (pound == NULL) 567260183Sdelphij return (B_FALSE); 568260183Sdelphij 569260183Sdelphij *pound = '\0'; 570260183Sdelphij bmark_name = pound + 1; 571260183Sdelphij props = fnvlist_alloc(); 572260183Sdelphij err = lzc_get_bookmarks(fsname, props, &bmarks); 573260183Sdelphij nvlist_free(props); 574260183Sdelphij if (err != 0) { 575260183Sdelphij nvlist_free(bmarks); 576260183Sdelphij return (B_FALSE); 577260183Sdelphij } 578260183Sdelphij 579260183Sdelphij rv = nvlist_exists(bmarks, bmark_name); 580260183Sdelphij nvlist_free(bmarks); 581260183Sdelphij return (rv); 582260183Sdelphij} 583260183Sdelphij 584260183Sdelphijzfs_handle_t * 585260183Sdelphijmake_bookmark_handle(zfs_handle_t *parent, const char *path, 586260183Sdelphij nvlist_t *bmark_props) 587260183Sdelphij{ 588260183Sdelphij zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 589260183Sdelphij 590260183Sdelphij if (zhp == NULL) 591260183Sdelphij return (NULL); 592260183Sdelphij 593260183Sdelphij /* Fill in the name. */ 594260183Sdelphij zhp->zfs_hdl = parent->zfs_hdl; 595260183Sdelphij (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 596260183Sdelphij 597260183Sdelphij /* Set the property lists. */ 598260183Sdelphij if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) { 599260183Sdelphij free(zhp); 600260183Sdelphij return (NULL); 601260183Sdelphij } 602260183Sdelphij 603260183Sdelphij /* Set the types. */ 604260183Sdelphij zhp->zfs_head_type = parent->zfs_head_type; 605260183Sdelphij zhp->zfs_type = ZFS_TYPE_BOOKMARK; 606260183Sdelphij 607260183Sdelphij if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) { 608260183Sdelphij nvlist_free(zhp->zfs_props); 609260183Sdelphij free(zhp); 610260183Sdelphij return (NULL); 611260183Sdelphij } 612260183Sdelphij 613260183Sdelphij return (zhp); 614260183Sdelphij} 615260183Sdelphij 616168404Spjd/* 617168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 618168404Spjd * argument is a mask of acceptable types. The function will print an 619168404Spjd * appropriate error message and return NULL if it can't be opened. 620168404Spjd */ 621168404Spjdzfs_handle_t * 622168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 623168404Spjd{ 624168404Spjd zfs_handle_t *zhp; 625168404Spjd char errbuf[1024]; 626168404Spjd 627168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 628168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 629168404Spjd 630168404Spjd /* 631168404Spjd * Validate the name before we even try to open it. 632168404Spjd */ 633185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 634168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 635168404Spjd "invalid dataset name")); 636168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 637168404Spjd return (NULL); 638168404Spjd } 639168404Spjd 640168404Spjd /* 641168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 642168404Spjd */ 643168404Spjd errno = 0; 644168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 645168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 646168404Spjd return (NULL); 647168404Spjd } 648168404Spjd 649240870Spjd if (zhp == NULL) { 650240870Spjd char *at = strchr(path, '@'); 651240870Spjd 652240870Spjd if (at != NULL) 653240870Spjd *at = '\0'; 654240870Spjd errno = 0; 655240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 656240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 657240870Spjd return (NULL); 658240870Spjd } 659240870Spjd if (at != NULL) 660240870Spjd *at = '@'; 661240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 662240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 663240870Spjd } 664240870Spjd 665168404Spjd if (!(types & zhp->zfs_type)) { 666168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 667168404Spjd zfs_close(zhp); 668168404Spjd return (NULL); 669168404Spjd } 670168404Spjd 671168404Spjd return (zhp); 672168404Spjd} 673168404Spjd 674168404Spjd/* 675168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 676168404Spjd */ 677168404Spjdvoid 678168404Spjdzfs_close(zfs_handle_t *zhp) 679168404Spjd{ 680168404Spjd if (zhp->zfs_mntopts) 681168404Spjd free(zhp->zfs_mntopts); 682168404Spjd nvlist_free(zhp->zfs_props); 683168404Spjd nvlist_free(zhp->zfs_user_props); 684219089Spjd nvlist_free(zhp->zfs_recvd_props); 685168404Spjd free(zhp); 686168404Spjd} 687168404Spjd 688209962Smmtypedef struct mnttab_node { 689209962Smm struct mnttab mtn_mt; 690209962Smm avl_node_t mtn_node; 691209962Smm} mnttab_node_t; 692209962Smm 693209962Smmstatic int 694209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 695209962Smm{ 696209962Smm const mnttab_node_t *mtn1 = arg1; 697209962Smm const mnttab_node_t *mtn2 = arg2; 698209962Smm int rv; 699209962Smm 700209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 701209962Smm 702209962Smm if (rv == 0) 703209962Smm return (0); 704209962Smm return (rv > 0 ? 1 : -1); 705209962Smm} 706209962Smm 707209962Smmvoid 708209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 709209962Smm{ 710209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 711209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 712209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 713209962Smm} 714209962Smm 715209962Smmvoid 716209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 717209962Smm{ 718209962Smm struct mnttab entry; 719209962Smm 720209962Smm rewind(hdl->libzfs_mnttab); 721209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 722209962Smm mnttab_node_t *mtn; 723209962Smm 724209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 725209962Smm continue; 726209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 727209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 728209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 729209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 730209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 731209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 732209962Smm } 733209962Smm} 734209962Smm 735209962Smmvoid 736209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 737209962Smm{ 738209962Smm void *cookie = NULL; 739209962Smm mnttab_node_t *mtn; 740209962Smm 741307050Smav while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) 742307050Smav != NULL) { 743209962Smm free(mtn->mtn_mt.mnt_special); 744209962Smm free(mtn->mtn_mt.mnt_mountp); 745209962Smm free(mtn->mtn_mt.mnt_fstype); 746209962Smm free(mtn->mtn_mt.mnt_mntopts); 747209962Smm free(mtn); 748209962Smm } 749209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 750209962Smm} 751209962Smm 752209962Smmvoid 753209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 754209962Smm{ 755209962Smm hdl->libzfs_mnttab_enable = enable; 756209962Smm} 757209962Smm 758185029Spjdint 759209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 760209962Smm struct mnttab *entry) 761209962Smm{ 762209962Smm mnttab_node_t find; 763209962Smm mnttab_node_t *mtn; 764209962Smm 765209962Smm if (!hdl->libzfs_mnttab_enable) { 766209962Smm struct mnttab srch = { 0 }; 767209962Smm 768209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 769209962Smm libzfs_mnttab_fini(hdl); 770209962Smm rewind(hdl->libzfs_mnttab); 771209962Smm srch.mnt_special = (char *)fsname; 772209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 773209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 774209962Smm return (0); 775209962Smm else 776209962Smm return (ENOENT); 777209962Smm } 778209962Smm 779209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 780209962Smm libzfs_mnttab_update(hdl); 781209962Smm 782209962Smm find.mtn_mt.mnt_special = (char *)fsname; 783209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 784209962Smm if (mtn) { 785209962Smm *entry = mtn->mtn_mt; 786209962Smm return (0); 787209962Smm } 788209962Smm return (ENOENT); 789209962Smm} 790209962Smm 791209962Smmvoid 792209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 793209962Smm const char *mountp, const char *mntopts) 794209962Smm{ 795209962Smm mnttab_node_t *mtn; 796209962Smm 797209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 798209962Smm return; 799209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 800209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 801209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 802209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 803209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 804209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 805209962Smm} 806209962Smm 807209962Smmvoid 808209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 809209962Smm{ 810209962Smm mnttab_node_t find; 811209962Smm mnttab_node_t *ret; 812209962Smm 813209962Smm find.mtn_mt.mnt_special = (char *)fsname; 814307050Smav if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) 815307050Smav != NULL) { 816209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 817209962Smm free(ret->mtn_mt.mnt_special); 818209962Smm free(ret->mtn_mt.mnt_mountp); 819209962Smm free(ret->mtn_mt.mnt_fstype); 820209962Smm free(ret->mtn_mt.mnt_mntopts); 821209962Smm free(ret); 822209962Smm } 823209962Smm} 824209962Smm 825209962Smmint 826185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 827168404Spjd{ 828185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 829168404Spjd 830185029Spjd if (zpool_handle == NULL) 831168404Spjd return (-1); 832168404Spjd 833185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 834185029Spjd ZPOOL_PROP_VERSION, NULL); 835168404Spjd return (0); 836168404Spjd} 837168404Spjd 838168404Spjd/* 839185029Spjd * The choice of reservation property depends on the SPA version. 840168404Spjd */ 841168404Spjdstatic int 842185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 843168404Spjd{ 844185029Spjd int spa_version; 845168404Spjd 846185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 847168404Spjd return (-1); 848168404Spjd 849185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 850185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 851185029Spjd else 852185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 853168404Spjd 854168404Spjd return (0); 855168404Spjd} 856168404Spjd 857168404Spjd/* 858168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 859168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 860168404Spjd * strings. 861168404Spjd */ 862168404Spjdnvlist_t * 863185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 864289500Smav uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl, 865289500Smav const char *errbuf) 866168404Spjd{ 867168404Spjd nvpair_t *elem; 868168404Spjd uint64_t intval; 869168404Spjd char *strval; 870185029Spjd zfs_prop_t prop; 871168404Spjd nvlist_t *ret; 872185029Spjd int chosen_normal = -1; 873185029Spjd int chosen_utf = -1; 874168404Spjd 875168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 876168404Spjd (void) no_memory(hdl); 877168404Spjd return (NULL); 878168404Spjd } 879168404Spjd 880209962Smm /* 881209962Smm * Make sure this property is valid and applies to this type. 882209962Smm */ 883209962Smm 884168404Spjd elem = NULL; 885168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 886185029Spjd const char *propname = nvpair_name(elem); 887168404Spjd 888209962Smm prop = zfs_name_to_prop(propname); 889209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 890185029Spjd /* 891209962Smm * This is a user property: make sure it's a 892185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 893185029Spjd */ 894185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 895185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 896185029Spjd "'%s' must be a string"), propname); 897185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 898185029Spjd goto error; 899168404Spjd } 900168404Spjd 901185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 902185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 903185029Spjd "property name '%s' is too long"), 904185029Spjd propname); 905185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 906185029Spjd goto error; 907185029Spjd } 908185029Spjd 909168404Spjd (void) nvpair_value_string(elem, &strval); 910168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 911168404Spjd (void) no_memory(hdl); 912168404Spjd goto error; 913168404Spjd } 914168404Spjd continue; 915168404Spjd } 916168404Spjd 917209962Smm /* 918209962Smm * Currently, only user properties can be modified on 919209962Smm * snapshots. 920209962Smm */ 921185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 922185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 923185029Spjd "this property can not be modified for snapshots")); 924185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 925185029Spjd goto error; 926185029Spjd } 927168404Spjd 928209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 929209962Smm zfs_userquota_prop_t uqtype; 930209962Smm char newpropname[128]; 931209962Smm char domain[128]; 932209962Smm uint64_t rid; 933209962Smm uint64_t valary[3]; 934209962Smm 935209962Smm if (userquota_propname_decode(propname, zoned, 936209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 937209962Smm zfs_error_aux(hdl, 938209962Smm dgettext(TEXT_DOMAIN, 939209962Smm "'%s' has an invalid user/group name"), 940209962Smm propname); 941209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 942209962Smm goto error; 943209962Smm } 944209962Smm 945209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 946209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 947209962Smm zfs_error_aux(hdl, 948209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 949209962Smm propname); 950209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 951209962Smm errbuf); 952209962Smm goto error; 953209962Smm } 954209962Smm 955209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 956209962Smm (void) nvpair_value_string(elem, &strval); 957209962Smm if (strcmp(strval, "none") == 0) { 958209962Smm intval = 0; 959209962Smm } else if (zfs_nicestrtonum(hdl, 960209962Smm strval, &intval) != 0) { 961209962Smm (void) zfs_error(hdl, 962209962Smm EZFS_BADPROP, errbuf); 963209962Smm goto error; 964209962Smm } 965209962Smm } else if (nvpair_type(elem) == 966209962Smm DATA_TYPE_UINT64) { 967209962Smm (void) nvpair_value_uint64(elem, &intval); 968209962Smm if (intval == 0) { 969209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 970209962Smm "use 'none' to disable " 971209962Smm "userquota/groupquota")); 972209962Smm goto error; 973209962Smm } 974209962Smm } else { 975209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 976209962Smm "'%s' must be a number"), propname); 977209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 978209962Smm goto error; 979209962Smm } 980209962Smm 981219089Spjd /* 982219089Spjd * Encode the prop name as 983219089Spjd * userquota@<hex-rid>-domain, to make it easy 984219089Spjd * for the kernel to decode. 985219089Spjd */ 986209962Smm (void) snprintf(newpropname, sizeof (newpropname), 987219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 988219089Spjd (longlong_t)rid, domain); 989209962Smm valary[0] = uqtype; 990209962Smm valary[1] = rid; 991209962Smm valary[2] = intval; 992209962Smm if (nvlist_add_uint64_array(ret, newpropname, 993209962Smm valary, 3) != 0) { 994209962Smm (void) no_memory(hdl); 995209962Smm goto error; 996209962Smm } 997209962Smm continue; 998228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 999228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1000228103Smm "'%s' is readonly"), 1001228103Smm propname); 1002228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1003228103Smm goto error; 1004209962Smm } 1005209962Smm 1006209962Smm if (prop == ZPROP_INVAL) { 1007209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1008209962Smm "invalid property '%s'"), propname); 1009209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1010209962Smm goto error; 1011209962Smm } 1012209962Smm 1013168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 1014168404Spjd zfs_error_aux(hdl, 1015168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 1016168404Spjd "apply to datasets of this type"), propname); 1017168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 1018168404Spjd goto error; 1019168404Spjd } 1020168404Spjd 1021168404Spjd if (zfs_prop_readonly(prop) && 1022185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 1023168404Spjd zfs_error_aux(hdl, 1024168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 1025168404Spjd propname); 1026168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1027168404Spjd goto error; 1028168404Spjd } 1029168404Spjd 1030185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 1031185029Spjd &strval, &intval, errbuf) != 0) 1032185029Spjd goto error; 1033185029Spjd 1034168404Spjd /* 1035185029Spjd * Perform some additional checks for specific properties. 1036168404Spjd */ 1037185029Spjd switch (prop) { 1038185029Spjd case ZFS_PROP_VERSION: 1039185029Spjd { 1040185029Spjd int version; 1041168404Spjd 1042185029Spjd if (zhp == NULL) 1043185029Spjd break; 1044185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1045185029Spjd if (intval < version) { 1046168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1047185029Spjd "Can not downgrade; already at version %u"), 1048185029Spjd version); 1049168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1050168404Spjd goto error; 1051168404Spjd } 1052168404Spjd break; 1053168404Spjd } 1054168404Spjd 1055274337Sdelphij case ZFS_PROP_VOLBLOCKSIZE: 1056168404Spjd case ZFS_PROP_RECORDSIZE: 1057274337Sdelphij { 1058274337Sdelphij int maxbs = SPA_MAXBLOCKSIZE; 1059289500Smav if (zpool_hdl != NULL) { 1060289500Smav maxbs = zpool_get_prop_int(zpool_hdl, 1061274337Sdelphij ZPOOL_PROP_MAXBLOCKSIZE, NULL); 1062274337Sdelphij } 1063274337Sdelphij /* 1064274337Sdelphij * Volumes are limited to a volblocksize of 128KB, 1065274337Sdelphij * because they typically service workloads with 1066274337Sdelphij * small random writes, which incur a large performance 1067274337Sdelphij * penalty with large blocks. 1068274337Sdelphij */ 1069274337Sdelphij if (prop == ZFS_PROP_VOLBLOCKSIZE) 1070274337Sdelphij maxbs = SPA_OLD_MAXBLOCKSIZE; 1071274337Sdelphij /* 1072274337Sdelphij * The value must be a power of two between 1073274337Sdelphij * SPA_MINBLOCKSIZE and maxbs. 1074274337Sdelphij */ 1075168404Spjd if (intval < SPA_MINBLOCKSIZE || 1076274337Sdelphij intval > maxbs || !ISP2(intval)) { 1077168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1078274337Sdelphij "'%s' must be power of 2 from 512B " 1079274337Sdelphij "to %uKB"), propname, maxbs >> 10); 1080168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1081168404Spjd goto error; 1082168404Spjd } 1083168404Spjd break; 1084274337Sdelphij } 1085219089Spjd case ZFS_PROP_MLSLABEL: 1086219089Spjd { 1087277300Ssmh#ifdef illumos 1088219089Spjd /* 1089219089Spjd * Verify the mlslabel string and convert to 1090219089Spjd * internal hex label string. 1091219089Spjd */ 1092219089Spjd 1093219089Spjd m_label_t *new_sl; 1094219089Spjd char *hex = NULL; /* internal label string */ 1095219089Spjd 1096219089Spjd /* Default value is already OK. */ 1097219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1098219089Spjd break; 1099219089Spjd 1100219089Spjd /* Verify the label can be converted to binary form */ 1101219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1102219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1103219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1104219089Spjd goto badlabel; 1105168404Spjd } 1106168404Spjd 1107219089Spjd /* Now translate to hex internal label string */ 1108219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1109219089Spjd DEF_NAMES) != 0) { 1110219089Spjd if (hex) 1111219089Spjd free(hex); 1112219089Spjd goto badlabel; 1113219089Spjd } 1114219089Spjd m_label_free(new_sl); 1115219089Spjd 1116219089Spjd /* If string is already in internal form, we're done. */ 1117219089Spjd if (strcmp(strval, hex) == 0) { 1118219089Spjd free(hex); 1119219089Spjd break; 1120219089Spjd } 1121219089Spjd 1122219089Spjd /* Replace the label string with the internal form. */ 1123219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1124219089Spjd DATA_TYPE_STRING); 1125219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1126219089Spjd hex) == 0); 1127219089Spjd free(hex); 1128219089Spjd 1129168404Spjd break; 1130168404Spjd 1131219089Spjdbadlabel: 1132219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1133219089Spjd "invalid mlslabel '%s'"), strval); 1134219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1135219089Spjd m_label_free(new_sl); /* OK if null */ 1136277300Ssmh#else /* !illumos */ 1137219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1138219089Spjd "mlslabel is not supported on FreeBSD")); 1139219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1140277300Ssmh#endif /* illumos */ 1141219089Spjd goto error; 1142219089Spjd 1143219089Spjd } 1144219089Spjd 1145168404Spjd case ZFS_PROP_MOUNTPOINT: 1146185029Spjd { 1147185029Spjd namecheck_err_t why; 1148185029Spjd 1149168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1150168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1151168404Spjd break; 1152168404Spjd 1153185029Spjd if (mountpoint_namecheck(strval, &why)) { 1154185029Spjd switch (why) { 1155185029Spjd case NAME_ERR_LEADING_SLASH: 1156185029Spjd zfs_error_aux(hdl, 1157185029Spjd dgettext(TEXT_DOMAIN, 1158185029Spjd "'%s' must be an absolute path, " 1159185029Spjd "'none', or 'legacy'"), propname); 1160185029Spjd break; 1161185029Spjd case NAME_ERR_TOOLONG: 1162185029Spjd zfs_error_aux(hdl, 1163185029Spjd dgettext(TEXT_DOMAIN, 1164185029Spjd "component of '%s' is too long"), 1165185029Spjd propname); 1166185029Spjd break; 1167307050Smav 1168307050Smav default: 1169307050Smav zfs_error_aux(hdl, 1170307050Smav dgettext(TEXT_DOMAIN, 1171307050Smav "(%d) not defined"), 1172307050Smav why); 1173307050Smav break; 1174185029Spjd } 1175168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1176168404Spjd goto error; 1177168404Spjd } 1178185029Spjd } 1179185029Spjd 1180168404Spjd /*FALLTHRU*/ 1181168404Spjd 1182185029Spjd case ZFS_PROP_SHARESMB: 1183168404Spjd case ZFS_PROP_SHARENFS: 1184168404Spjd /* 1185185029Spjd * For the mountpoint and sharenfs or sharesmb 1186185029Spjd * properties, check if it can be set in a 1187185029Spjd * global/non-global zone based on 1188168404Spjd * the zoned property value: 1189168404Spjd * 1190168404Spjd * global zone non-global zone 1191168404Spjd * -------------------------------------------------- 1192168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1193168404Spjd * sharenfs (no) sharenfs (no) 1194185029Spjd * sharesmb (no) sharesmb (no) 1195168404Spjd * 1196168404Spjd * zoned=off mountpoint (yes) N/A 1197168404Spjd * sharenfs (yes) 1198185029Spjd * sharesmb (yes) 1199168404Spjd */ 1200168404Spjd if (zoned) { 1201168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1202168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1203168404Spjd "'%s' cannot be set on " 1204168404Spjd "dataset in a non-global zone"), 1205168404Spjd propname); 1206168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1207168404Spjd errbuf); 1208168404Spjd goto error; 1209185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1210185029Spjd prop == ZFS_PROP_SHARESMB) { 1211168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1212168404Spjd "'%s' cannot be set in " 1213168404Spjd "a non-global zone"), propname); 1214168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1215168404Spjd errbuf); 1216168404Spjd goto error; 1217168404Spjd } 1218168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1219168404Spjd /* 1220168404Spjd * If zoned property is 'off', this must be in 1221209962Smm * a global zone. If not, something is wrong. 1222168404Spjd */ 1223168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1224168404Spjd "'%s' cannot be set while dataset " 1225168404Spjd "'zoned' property is set"), propname); 1226168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1227168404Spjd goto error; 1228168404Spjd } 1229168404Spjd 1230168404Spjd /* 1231185029Spjd * At this point, it is legitimate to set the 1232185029Spjd * property. Now we want to make sure that the 1233185029Spjd * property value is valid if it is sharenfs. 1234168404Spjd */ 1235185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1236185029Spjd prop == ZFS_PROP_SHARESMB) && 1237185029Spjd strcmp(strval, "on") != 0 && 1238185029Spjd strcmp(strval, "off") != 0) { 1239185029Spjd zfs_share_proto_t proto; 1240168404Spjd 1241185029Spjd if (prop == ZFS_PROP_SHARESMB) 1242185029Spjd proto = PROTO_SMB; 1243185029Spjd else 1244185029Spjd proto = PROTO_NFS; 1245185029Spjd 1246185029Spjd /* 1247185029Spjd * Must be an valid sharing protocol 1248185029Spjd * option string so init the libshare 1249185029Spjd * in order to enable the parser and 1250185029Spjd * then parse the options. We use the 1251185029Spjd * control API since we don't care about 1252185029Spjd * the current configuration and don't 1253185029Spjd * want the overhead of loading it 1254185029Spjd * until we actually do something. 1255185029Spjd */ 1256185029Spjd 1257185029Spjd if (zfs_init_libshare(hdl, 1258185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1259185029Spjd /* 1260185029Spjd * An error occurred so we can't do 1261185029Spjd * anything 1262185029Spjd */ 1263185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1264185029Spjd "'%s' cannot be set: problem " 1265185029Spjd "in share initialization"), 1266185029Spjd propname); 1267185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1268185029Spjd errbuf); 1269185029Spjd goto error; 1270185029Spjd } 1271185029Spjd 1272185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1273185029Spjd /* 1274185029Spjd * There was an error in parsing so 1275185029Spjd * deal with it by issuing an error 1276185029Spjd * message and leaving after 1277185029Spjd * uninitializing the the libshare 1278185029Spjd * interface. 1279185029Spjd */ 1280185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1281185029Spjd "'%s' cannot be set to invalid " 1282185029Spjd "options"), propname); 1283185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1284185029Spjd errbuf); 1285185029Spjd zfs_uninit_libshare(hdl); 1286185029Spjd goto error; 1287185029Spjd } 1288185029Spjd zfs_uninit_libshare(hdl); 1289168404Spjd } 1290185029Spjd 1291168404Spjd break; 1292307050Smav 1293185029Spjd case ZFS_PROP_UTF8ONLY: 1294185029Spjd chosen_utf = (int)intval; 1295185029Spjd break; 1296307050Smav 1297185029Spjd case ZFS_PROP_NORMALIZE: 1298185029Spjd chosen_normal = (int)intval; 1299185029Spjd break; 1300307050Smav 1301307050Smav default: 1302307050Smav break; 1303168404Spjd } 1304168404Spjd 1305168404Spjd /* 1306168404Spjd * For changes to existing volumes, we have some additional 1307168404Spjd * checks to enforce. 1308168404Spjd */ 1309168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1310168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1311168404Spjd ZFS_PROP_VOLSIZE); 1312168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1313168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1314168404Spjd char buf[64]; 1315168404Spjd 1316168404Spjd switch (prop) { 1317168404Spjd case ZFS_PROP_RESERVATION: 1318185029Spjd case ZFS_PROP_REFRESERVATION: 1319168404Spjd if (intval > volsize) { 1320168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1321168404Spjd "'%s' is greater than current " 1322168404Spjd "volume size"), propname); 1323168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1324168404Spjd errbuf); 1325168404Spjd goto error; 1326168404Spjd } 1327168404Spjd break; 1328168404Spjd 1329168404Spjd case ZFS_PROP_VOLSIZE: 1330168404Spjd if (intval % blocksize != 0) { 1331168404Spjd zfs_nicenum(blocksize, buf, 1332168404Spjd sizeof (buf)); 1333168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1334168404Spjd "'%s' must be a multiple of " 1335168404Spjd "volume block size (%s)"), 1336168404Spjd propname, buf); 1337168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1338168404Spjd errbuf); 1339168404Spjd goto error; 1340168404Spjd } 1341168404Spjd 1342168404Spjd if (intval == 0) { 1343168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1344168404Spjd "'%s' cannot be zero"), 1345168404Spjd propname); 1346168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1347168404Spjd errbuf); 1348168404Spjd goto error; 1349168404Spjd } 1350168404Spjd break; 1351307050Smav 1352307050Smav default: 1353307050Smav break; 1354168404Spjd } 1355168404Spjd } 1356168404Spjd } 1357168404Spjd 1358168404Spjd /* 1359185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1360185029Spjd * enforce rejection of non-UTF8 names. 1361185029Spjd * 1362185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1363185029Spjd * was explicitly not chosen, it is an error. 1364185029Spjd */ 1365185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1366185029Spjd if (nvlist_add_uint64(ret, 1367185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1368185029Spjd (void) no_memory(hdl); 1369185029Spjd goto error; 1370185029Spjd } 1371185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1372185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1373185029Spjd "'%s' must be set 'on' if normalization chosen"), 1374185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1375185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1376185029Spjd goto error; 1377185029Spjd } 1378219089Spjd return (ret); 1379185029Spjd 1380219089Spjderror: 1381219089Spjd nvlist_free(ret); 1382219089Spjd return (NULL); 1383219089Spjd} 1384219089Spjd 1385219089Spjdint 1386219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1387219089Spjd{ 1388219089Spjd uint64_t old_volsize; 1389219089Spjd uint64_t new_volsize; 1390219089Spjd uint64_t old_reservation; 1391219089Spjd uint64_t new_reservation; 1392219089Spjd zfs_prop_t resv_prop; 1393289499Smav nvlist_t *props; 1394219089Spjd 1395185029Spjd /* 1396168404Spjd * If this is an existing volume, and someone is setting the volsize, 1397168404Spjd * make sure that it matches the reservation, or add it if necessary. 1398168404Spjd */ 1399219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1400219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1401219089Spjd return (-1); 1402219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1403289499Smav 1404289499Smav props = fnvlist_alloc(); 1405289499Smav fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1406289499Smav zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); 1407289499Smav 1408289499Smav if ((zvol_volsize_to_reservation(old_volsize, props) != 1409289499Smav old_reservation) || nvlist_exists(nvl, 1410289499Smav zfs_prop_to_name(resv_prop))) { 1411289499Smav fnvlist_free(props); 1412219089Spjd return (0); 1413219089Spjd } 1414219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1415289499Smav &new_volsize) != 0) { 1416289499Smav fnvlist_free(props); 1417219089Spjd return (-1); 1418289499Smav } 1419289499Smav new_reservation = zvol_volsize_to_reservation(new_volsize, props); 1420289499Smav fnvlist_free(props); 1421289499Smav 1422219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1423219089Spjd new_reservation) != 0) { 1424219089Spjd (void) no_memory(zhp->zfs_hdl); 1425219089Spjd return (-1); 1426219089Spjd } 1427219089Spjd return (1); 1428219089Spjd} 1429168404Spjd 1430219089Spjdvoid 1431219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1432219089Spjd char *errbuf) 1433219089Spjd{ 1434219089Spjd switch (err) { 1435185029Spjd 1436219089Spjd case ENOSPC: 1437219089Spjd /* 1438219089Spjd * For quotas and reservations, ENOSPC indicates 1439219089Spjd * something different; setting a quota or reservation 1440219089Spjd * doesn't use any disk space. 1441219089Spjd */ 1442219089Spjd switch (prop) { 1443219089Spjd case ZFS_PROP_QUOTA: 1444219089Spjd case ZFS_PROP_REFQUOTA: 1445219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1446219089Spjd "size is less than current used or " 1447219089Spjd "reserved space")); 1448219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1449219089Spjd break; 1450219089Spjd 1451219089Spjd case ZFS_PROP_RESERVATION: 1452219089Spjd case ZFS_PROP_REFRESERVATION: 1453219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1454219089Spjd "size is greater than available space")); 1455219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1456219089Spjd break; 1457219089Spjd 1458219089Spjd default: 1459219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1460219089Spjd break; 1461168404Spjd } 1462219089Spjd break; 1463219089Spjd 1464219089Spjd case EBUSY: 1465219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1466219089Spjd break; 1467219089Spjd 1468219089Spjd case EROFS: 1469219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1470219089Spjd break; 1471219089Spjd 1472271764Swill case E2BIG: 1473271764Swill zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1474271764Swill "property value too long")); 1475271764Swill (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1476271764Swill break; 1477271764Swill 1478219089Spjd case ENOTSUP: 1479219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1480219089Spjd "pool and or dataset must be upgraded to set this " 1481219089Spjd "property or value")); 1482219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1483219089Spjd break; 1484219089Spjd 1485219089Spjd case ERANGE: 1486274337Sdelphij case EDOM: 1487274337Sdelphij if (prop == ZFS_PROP_COMPRESSION || 1488274337Sdelphij prop == ZFS_PROP_RECORDSIZE) { 1489219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1490219089Spjd "property setting is not allowed on " 1491219089Spjd "bootable datasets")); 1492219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1493289422Smav } else if (prop == ZFS_PROP_CHECKSUM || 1494289422Smav prop == ZFS_PROP_DEDUP) { 1495289422Smav (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1496289422Smav "property setting is not allowed on " 1497289422Smav "root pools")); 1498289422Smav (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1499219089Spjd } else { 1500219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1501219089Spjd } 1502219089Spjd break; 1503219089Spjd 1504219089Spjd case EINVAL: 1505219089Spjd if (prop == ZPROP_INVAL) { 1506219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1507219089Spjd } else { 1508219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1509219089Spjd } 1510219089Spjd break; 1511219089Spjd 1512219089Spjd case EOVERFLOW: 1513219089Spjd /* 1514219089Spjd * This platform can't address a volume this big. 1515219089Spjd */ 1516219089Spjd#ifdef _ILP32 1517219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1518219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1519219089Spjd break; 1520219089Spjd } 1521219089Spjd#endif 1522219089Spjd /* FALLTHROUGH */ 1523219089Spjd default: 1524219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1525168404Spjd } 1526168404Spjd} 1527168404Spjd 1528168404Spjd/* 1529168404Spjd * Given a property name and value, set the property for the given dataset. 1530168404Spjd */ 1531168404Spjdint 1532168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1533168404Spjd{ 1534168404Spjd int ret = -1; 1535168404Spjd char errbuf[1024]; 1536168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1537289497Smav nvlist_t *nvl = NULL; 1538168404Spjd 1539168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1540168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1541168404Spjd zhp->zfs_name); 1542168404Spjd 1543168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1544168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1545168404Spjd (void) no_memory(hdl); 1546168404Spjd goto error; 1547168404Spjd } 1548168404Spjd 1549289497Smav ret = zfs_prop_set_list(zhp, nvl); 1550185029Spjd 1551289497Smaverror: 1552168404Spjd nvlist_free(nvl); 1553289497Smav return (ret); 1554289497Smav} 1555168404Spjd 1556168404Spjd 1557168404Spjd 1558289497Smav/* 1559289497Smav * Given an nvlist of property names and values, set the properties for the 1560289497Smav * given dataset. 1561289497Smav */ 1562289497Smavint 1563289497Smavzfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props) 1564289497Smav{ 1565289497Smav zfs_cmd_t zc = { 0 }; 1566289497Smav int ret = -1; 1567289497Smav prop_changelist_t **cls = NULL; 1568289497Smav int cl_idx; 1569289497Smav char errbuf[1024]; 1570289497Smav libzfs_handle_t *hdl = zhp->zfs_hdl; 1571289497Smav nvlist_t *nvl; 1572289497Smav int nvl_len; 1573307107Smav int added_resv = 0; 1574219089Spjd 1575289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1576289497Smav dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1577289497Smav zhp->zfs_name); 1578168404Spjd 1579289497Smav if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props, 1580289500Smav zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, zhp->zpool_hdl, 1581289500Smav errbuf)) == NULL) 1582168404Spjd goto error; 1583168404Spjd 1584185029Spjd /* 1585289497Smav * We have to check for any extra properties which need to be added 1586289497Smav * before computing the length of the nvlist. 1587185029Spjd */ 1588289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1589289497Smav elem != NULL; 1590289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1591289497Smav if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE && 1592289497Smav (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) { 1593289497Smav goto error; 1594289497Smav } 1595238391Smm } 1596289497Smav /* 1597289497Smav * Check how many properties we're setting and allocate an array to 1598289497Smav * store changelist pointers for postfix(). 1599289497Smav */ 1600289497Smav nvl_len = 0; 1601289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1602289497Smav elem != NULL; 1603289497Smav elem = nvlist_next_nvpair(nvl, elem)) 1604289497Smav nvl_len++; 1605289497Smav if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL) 1606168404Spjd goto error; 1607168404Spjd 1608289497Smav cl_idx = 0; 1609289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1610289497Smav elem != NULL; 1611289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1612289497Smav 1613289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1614289497Smav 1615289497Smav assert(cl_idx < nvl_len); 1616289497Smav /* 1617289497Smav * We don't want to unmount & remount the dataset when changing 1618310068Savg * its canmount property to 'on' or 'noauto'. We only use 1619310068Savg * the changelist logic to unmount when setting canmount=off. 1620289497Smav */ 1621297521Savg if (prop != ZFS_PROP_CANMOUNT || 1622297521Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF && 1623321522Smav zfs_is_mounted(zhp, NULL))) { 1624289497Smav cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); 1625289497Smav if (cls[cl_idx] == NULL) 1626289497Smav goto error; 1627289497Smav } 1628289497Smav 1629289497Smav if (prop == ZFS_PROP_MOUNTPOINT && 1630289497Smav changelist_haszonedchild(cls[cl_idx])) { 1631289497Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1632289497Smav "child dataset with inherited mountpoint is used " 1633289497Smav "in a non-global zone")); 1634289497Smav ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1635289497Smav goto error; 1636289497Smav } 1637289497Smav 1638289497Smav /* We don't support those properties on FreeBSD. */ 1639289497Smav switch (prop) { 1640289497Smav case ZFS_PROP_DEVICES: 1641289497Smav case ZFS_PROP_ISCSIOPTIONS: 1642289497Smav case ZFS_PROP_XATTR: 1643289497Smav case ZFS_PROP_VSCAN: 1644289497Smav case ZFS_PROP_NBMAND: 1645289497Smav case ZFS_PROP_MLSLABEL: 1646289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1647289497Smav "property '%s' not supported on FreeBSD", 1648289497Smav nvpair_name(elem)); 1649289497Smav ret = zfs_error(hdl, EZFS_PERM, errbuf); 1650289497Smav goto error; 1651289497Smav } 1652289497Smav 1653289497Smav if (cls[cl_idx] != NULL && 1654289497Smav (ret = changelist_prefix(cls[cl_idx])) != 0) 1655289497Smav goto error; 1656289497Smav 1657289497Smav cl_idx++; 1658289497Smav } 1659289497Smav assert(cl_idx == nvl_len); 1660289497Smav 1661168404Spjd /* 1662289497Smav * Execute the corresponding ioctl() to set this list of properties. 1663168404Spjd */ 1664168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1665168404Spjd 1666289497Smav if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || 1667289497Smav (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) 1668168404Spjd goto error; 1669168404Spjd 1670185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1671209962Smm 1672168404Spjd if (ret != 0) { 1673289497Smav /* Get the list of unset properties back and report them. */ 1674289497Smav nvlist_t *errorprops = NULL; 1675289497Smav if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) 1676289497Smav goto error; 1677289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1678289497Smav elem != NULL; 1679289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1680289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1681289497Smav zfs_setprop_error(hdl, prop, errno, errbuf); 1682289497Smav } 1683289497Smav nvlist_free(errorprops); 1684289497Smav 1685219089Spjd if (added_resv && errno == ENOSPC) { 1686219089Spjd /* clean up the volsize property we tried to set */ 1687219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1688219089Spjd ZFS_PROP_VOLSIZE); 1689219089Spjd nvlist_free(nvl); 1690289497Smav nvl = NULL; 1691219089Spjd zcmd_free_nvlists(&zc); 1692289497Smav 1693219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1694219089Spjd goto error; 1695219089Spjd if (nvlist_add_uint64(nvl, 1696219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1697219089Spjd old_volsize) != 0) 1698219089Spjd goto error; 1699219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1700219089Spjd goto error; 1701219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1702168404Spjd } 1703168404Spjd } else { 1704289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1705289497Smav if (cls[cl_idx] != NULL) { 1706289497Smav int clp_err = changelist_postfix(cls[cl_idx]); 1707289497Smav if (clp_err != 0) 1708289497Smav ret = clp_err; 1709289497Smav } 1710289497Smav } 1711185029Spjd 1712168404Spjd /* 1713168404Spjd * Refresh the statistics so the new property value 1714168404Spjd * is reflected. 1715168404Spjd */ 1716185029Spjd if (ret == 0) 1717168404Spjd (void) get_stats(zhp); 1718168404Spjd } 1719168404Spjd 1720168404Spjderror: 1721168404Spjd nvlist_free(nvl); 1722168404Spjd zcmd_free_nvlists(&zc); 1723289497Smav if (cls != NULL) { 1724289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1725289497Smav if (cls[cl_idx] != NULL) 1726289497Smav changelist_free(cls[cl_idx]); 1727289497Smav } 1728289497Smav free(cls); 1729289497Smav } 1730168404Spjd return (ret); 1731168404Spjd} 1732168404Spjd 1733168404Spjd/* 1734219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1735219089Spjd * is TRUE, revert to the received value, if any. 1736168404Spjd */ 1737168404Spjdint 1738219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1739168404Spjd{ 1740168404Spjd zfs_cmd_t zc = { 0 }; 1741168404Spjd int ret; 1742168404Spjd prop_changelist_t *cl; 1743168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1744168404Spjd char errbuf[1024]; 1745168404Spjd zfs_prop_t prop; 1746168404Spjd 1747168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1748168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1749168404Spjd 1750219089Spjd zc.zc_cookie = received; 1751185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1752168404Spjd /* 1753168404Spjd * For user properties, the amount of work we have to do is very 1754168404Spjd * small, so just do it here. 1755168404Spjd */ 1756168404Spjd if (!zfs_prop_user(propname)) { 1757168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1758168404Spjd "invalid property")); 1759168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1760168404Spjd } 1761168404Spjd 1762168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1763168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1764168404Spjd 1765185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1766168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1767168404Spjd 1768168404Spjd return (0); 1769168404Spjd } 1770168404Spjd 1771168404Spjd /* 1772168404Spjd * Verify that this property is inheritable. 1773168404Spjd */ 1774168404Spjd if (zfs_prop_readonly(prop)) 1775168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1776168404Spjd 1777219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1778168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1779168404Spjd 1780168404Spjd /* 1781168404Spjd * Check to see if the value applies to this type 1782168404Spjd */ 1783168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1784168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1785168404Spjd 1786168404Spjd /* 1787219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1788168404Spjd */ 1789168404Spjd propname = zfs_prop_to_name(prop); 1790168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1791168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1792168404Spjd 1793168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1794168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1795168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1796168404Spjd "dataset is used in a non-global zone")); 1797168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1798168404Spjd } 1799168404Spjd 1800168404Spjd /* 1801168404Spjd * Determine datasets which will be affected by this change, if any. 1802168404Spjd */ 1803185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1804168404Spjd return (-1); 1805168404Spjd 1806168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1807168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1808168404Spjd "child dataset with inherited mountpoint is used " 1809168404Spjd "in a non-global zone")); 1810168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1811168404Spjd goto error; 1812168404Spjd } 1813168404Spjd 1814168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1815168404Spjd goto error; 1816168404Spjd 1817185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1818168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1819168404Spjd } else { 1820168404Spjd 1821168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1822168404Spjd goto error; 1823168404Spjd 1824168404Spjd /* 1825168404Spjd * Refresh the statistics so the new property is reflected. 1826168404Spjd */ 1827168404Spjd (void) get_stats(zhp); 1828168404Spjd } 1829168404Spjd 1830168404Spjderror: 1831168404Spjd changelist_free(cl); 1832168404Spjd return (ret); 1833168404Spjd} 1834168404Spjd 1835168404Spjd/* 1836168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1837168404Spjd * extract them appropriately. 1838168404Spjd */ 1839168404Spjdstatic uint64_t 1840168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1841168404Spjd{ 1842168404Spjd nvlist_t *nv; 1843168404Spjd uint64_t value; 1844168404Spjd 1845168404Spjd *source = NULL; 1846168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1847168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1848185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1849185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1850168404Spjd } else { 1851205198Sdelphij verify(!zhp->zfs_props_table || 1852205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1853168404Spjd value = zfs_prop_default_numeric(prop); 1854168404Spjd *source = ""; 1855168404Spjd } 1856168404Spjd 1857168404Spjd return (value); 1858168404Spjd} 1859168404Spjd 1860289362Smavstatic const char * 1861168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1862168404Spjd{ 1863168404Spjd nvlist_t *nv; 1864289362Smav const char *value; 1865168404Spjd 1866168404Spjd *source = NULL; 1867168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1868168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1869289362Smav value = fnvlist_lookup_string(nv, ZPROP_VALUE); 1870185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1871168404Spjd } else { 1872205198Sdelphij verify(!zhp->zfs_props_table || 1873205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1874289362Smav value = zfs_prop_default_string(prop); 1875168404Spjd *source = ""; 1876168404Spjd } 1877168404Spjd 1878168404Spjd return (value); 1879168404Spjd} 1880168404Spjd 1881219089Spjdstatic boolean_t 1882219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1883219089Spjd{ 1884219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1885219089Spjd} 1886219089Spjd 1887219089Spjdstatic void 1888219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1889219089Spjd{ 1890219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1891219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1892219089Spjd} 1893219089Spjd 1894219089Spjdstatic void 1895219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1896219089Spjd{ 1897219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1898219089Spjd *cookie = 0; 1899219089Spjd} 1900219089Spjd 1901168404Spjd/* 1902168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1903168404Spjd * zfs_prop_get_int() are built using this interface. 1904168404Spjd * 1905168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1906168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1907168404Spjd * If they differ from the on-disk values, report the current values and mark 1908168404Spjd * the source "temporary". 1909168404Spjd */ 1910168404Spjdstatic int 1911185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1912168404Spjd char **source, uint64_t *val) 1913168404Spjd{ 1914185029Spjd zfs_cmd_t zc = { 0 }; 1915185029Spjd nvlist_t *zplprops = NULL; 1916168404Spjd struct mnttab mnt; 1917168404Spjd char *mntopt_on = NULL; 1918168404Spjd char *mntopt_off = NULL; 1919219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1920168404Spjd 1921168404Spjd *source = NULL; 1922168404Spjd 1923168404Spjd switch (prop) { 1924168404Spjd case ZFS_PROP_ATIME: 1925168404Spjd mntopt_on = MNTOPT_ATIME; 1926168404Spjd mntopt_off = MNTOPT_NOATIME; 1927168404Spjd break; 1928168404Spjd 1929168404Spjd case ZFS_PROP_DEVICES: 1930168404Spjd mntopt_on = MNTOPT_DEVICES; 1931168404Spjd mntopt_off = MNTOPT_NODEVICES; 1932168404Spjd break; 1933168404Spjd 1934168404Spjd case ZFS_PROP_EXEC: 1935168404Spjd mntopt_on = MNTOPT_EXEC; 1936168404Spjd mntopt_off = MNTOPT_NOEXEC; 1937168404Spjd break; 1938168404Spjd 1939168404Spjd case ZFS_PROP_READONLY: 1940168404Spjd mntopt_on = MNTOPT_RO; 1941168404Spjd mntopt_off = MNTOPT_RW; 1942168404Spjd break; 1943168404Spjd 1944168404Spjd case ZFS_PROP_SETUID: 1945168404Spjd mntopt_on = MNTOPT_SETUID; 1946168404Spjd mntopt_off = MNTOPT_NOSETUID; 1947168404Spjd break; 1948168404Spjd 1949168404Spjd case ZFS_PROP_XATTR: 1950168404Spjd mntopt_on = MNTOPT_XATTR; 1951168404Spjd mntopt_off = MNTOPT_NOXATTR; 1952168404Spjd break; 1953185029Spjd 1954185029Spjd case ZFS_PROP_NBMAND: 1955185029Spjd mntopt_on = MNTOPT_NBMAND; 1956185029Spjd mntopt_off = MNTOPT_NONBMAND; 1957185029Spjd break; 1958307050Smav 1959307050Smav default: 1960307050Smav break; 1961168404Spjd } 1962168404Spjd 1963168404Spjd /* 1964168404Spjd * Because looking up the mount options is potentially expensive 1965168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1966168404Spjd * we're looking up a property which requires its presence. 1967168404Spjd */ 1968168404Spjd if (!zhp->zfs_mntcheck && 1969168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1970209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1971209962Smm struct mnttab entry; 1972168404Spjd 1973209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1974209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1975168404Spjd entry.mnt_mntopts); 1976168404Spjd if (zhp->zfs_mntopts == NULL) 1977168404Spjd return (-1); 1978168404Spjd } 1979168404Spjd 1980168404Spjd zhp->zfs_mntcheck = B_TRUE; 1981168404Spjd } 1982168404Spjd 1983168404Spjd if (zhp->zfs_mntopts == NULL) 1984168404Spjd mnt.mnt_mntopts = ""; 1985168404Spjd else 1986168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1987168404Spjd 1988168404Spjd switch (prop) { 1989168404Spjd case ZFS_PROP_ATIME: 1990168404Spjd case ZFS_PROP_DEVICES: 1991168404Spjd case ZFS_PROP_EXEC: 1992168404Spjd case ZFS_PROP_READONLY: 1993168404Spjd case ZFS_PROP_SETUID: 1994168404Spjd case ZFS_PROP_XATTR: 1995185029Spjd case ZFS_PROP_NBMAND: 1996168404Spjd *val = getprop_uint64(zhp, prop, source); 1997168404Spjd 1998219089Spjd if (received) 1999219089Spjd break; 2000219089Spjd 2001168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 2002168404Spjd *val = B_TRUE; 2003168404Spjd if (src) 2004185029Spjd *src = ZPROP_SRC_TEMPORARY; 2005168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 2006168404Spjd *val = B_FALSE; 2007168404Spjd if (src) 2008185029Spjd *src = ZPROP_SRC_TEMPORARY; 2009168404Spjd } 2010168404Spjd break; 2011168404Spjd 2012168404Spjd case ZFS_PROP_CANMOUNT: 2013219089Spjd case ZFS_PROP_VOLSIZE: 2014168404Spjd case ZFS_PROP_QUOTA: 2015185029Spjd case ZFS_PROP_REFQUOTA: 2016168404Spjd case ZFS_PROP_RESERVATION: 2017185029Spjd case ZFS_PROP_REFRESERVATION: 2018264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2019264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2020264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2021264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2022168404Spjd *val = getprop_uint64(zhp, prop, source); 2023219089Spjd 2024219089Spjd if (*source == NULL) { 2025219089Spjd /* not default, must be local */ 2026168404Spjd *source = zhp->zfs_name; 2027219089Spjd } 2028168404Spjd break; 2029168404Spjd 2030168404Spjd case ZFS_PROP_MOUNTED: 2031168404Spjd *val = (zhp->zfs_mntopts != NULL); 2032168404Spjd break; 2033168404Spjd 2034168404Spjd case ZFS_PROP_NUMCLONES: 2035168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 2036168404Spjd break; 2037168404Spjd 2038185029Spjd case ZFS_PROP_VERSION: 2039185029Spjd case ZFS_PROP_NORMALIZE: 2040185029Spjd case ZFS_PROP_UTF8ONLY: 2041185029Spjd case ZFS_PROP_CASE: 2042185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 2043185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 2044185029Spjd return (-1); 2045185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2046185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 2047185029Spjd zcmd_free_nvlists(&zc); 2048219089Spjd return (-1); 2049185029Spjd } 2050185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 2051185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 2052185029Spjd val) != 0) { 2053185029Spjd zcmd_free_nvlists(&zc); 2054219089Spjd return (-1); 2055185029Spjd } 2056296528Smav nvlist_free(zplprops); 2057185029Spjd zcmd_free_nvlists(&zc); 2058185029Spjd break; 2059185029Spjd 2060253819Sdelphij case ZFS_PROP_INCONSISTENT: 2061253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 2062253819Sdelphij break; 2063253819Sdelphij 2064168404Spjd default: 2065185029Spjd switch (zfs_prop_get_type(prop)) { 2066185029Spjd case PROP_TYPE_NUMBER: 2067185029Spjd case PROP_TYPE_INDEX: 2068185029Spjd *val = getprop_uint64(zhp, prop, source); 2069185029Spjd /* 2070209962Smm * If we tried to use a default value for a 2071185029Spjd * readonly property, it means that it was not 2072219089Spjd * present. 2073185029Spjd */ 2074185029Spjd if (zfs_prop_readonly(prop) && 2075219089Spjd *source != NULL && (*source)[0] == '\0') { 2076219089Spjd *source = NULL; 2077185029Spjd } 2078185029Spjd break; 2079185029Spjd 2080185029Spjd case PROP_TYPE_STRING: 2081185029Spjd default: 2082185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2083185029Spjd "cannot get non-numeric property")); 2084185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2085185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2086185029Spjd } 2087168404Spjd } 2088168404Spjd 2089168404Spjd return (0); 2090168404Spjd} 2091168404Spjd 2092168404Spjd/* 2093168404Spjd * Calculate the source type, given the raw source string. 2094168404Spjd */ 2095168404Spjdstatic void 2096185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2097168404Spjd char *statbuf, size_t statlen) 2098168404Spjd{ 2099185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2100168404Spjd return; 2101168404Spjd 2102168404Spjd if (source == NULL) { 2103185029Spjd *srctype = ZPROP_SRC_NONE; 2104168404Spjd } else if (source[0] == '\0') { 2105185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2106219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2107219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2108168404Spjd } else { 2109168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2110185029Spjd *srctype = ZPROP_SRC_LOCAL; 2111168404Spjd } else { 2112168404Spjd (void) strlcpy(statbuf, source, statlen); 2113185029Spjd *srctype = ZPROP_SRC_INHERITED; 2114168404Spjd } 2115168404Spjd } 2116168404Spjd 2117168404Spjd} 2118168404Spjd 2119219089Spjdint 2120219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2121219089Spjd size_t proplen, boolean_t literal) 2122219089Spjd{ 2123219089Spjd zfs_prop_t prop; 2124219089Spjd int err = 0; 2125219089Spjd 2126219089Spjd if (zhp->zfs_recvd_props == NULL) 2127219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2128219089Spjd return (-1); 2129219089Spjd 2130219089Spjd prop = zfs_name_to_prop(propname); 2131219089Spjd 2132219089Spjd if (prop != ZPROP_INVAL) { 2133219089Spjd uint64_t cookie; 2134219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2135219089Spjd return (-1); 2136219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2137219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2138219089Spjd NULL, NULL, 0, literal); 2139219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2140219089Spjd } else { 2141219089Spjd nvlist_t *propval; 2142219089Spjd char *recvdval; 2143219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2144219089Spjd propname, &propval) != 0) 2145219089Spjd return (-1); 2146219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2147219089Spjd &recvdval) == 0); 2148219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2149219089Spjd } 2150219089Spjd 2151219089Spjd return (err == 0 ? 0 : -1); 2152219089Spjd} 2153219089Spjd 2154228103Smmstatic int 2155228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2156228103Smm{ 2157228103Smm nvlist_t *value; 2158228103Smm nvpair_t *pair; 2159228103Smm 2160228103Smm value = zfs_get_clones_nvl(zhp); 2161228103Smm if (value == NULL) 2162228103Smm return (-1); 2163228103Smm 2164228103Smm propbuf[0] = '\0'; 2165228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2166228103Smm pair = nvlist_next_nvpair(value, pair)) { 2167228103Smm if (propbuf[0] != '\0') 2168228103Smm (void) strlcat(propbuf, ",", proplen); 2169228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2170228103Smm } 2171228103Smm 2172228103Smm return (0); 2173228103Smm} 2174228103Smm 2175228103Smmstruct get_clones_arg { 2176228103Smm uint64_t numclones; 2177228103Smm nvlist_t *value; 2178228103Smm const char *origin; 2179307108Smav char buf[ZFS_MAX_DATASET_NAME_LEN]; 2180228103Smm}; 2181228103Smm 2182228103Smmint 2183228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2184228103Smm{ 2185228103Smm struct get_clones_arg *gca = arg; 2186228103Smm 2187228103Smm if (gca->numclones == 0) { 2188228103Smm zfs_close(zhp); 2189228103Smm return (0); 2190228103Smm } 2191228103Smm 2192228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2193228103Smm NULL, NULL, 0, B_TRUE) != 0) 2194228103Smm goto out; 2195228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2196248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2197228103Smm gca->numclones--; 2198228103Smm } 2199228103Smm 2200228103Smmout: 2201228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2202228103Smm zfs_close(zhp); 2203228103Smm return (0); 2204228103Smm} 2205228103Smm 2206228103Smmnvlist_t * 2207228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2208228103Smm{ 2209228103Smm nvlist_t *nv, *value; 2210228103Smm 2211228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2212228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2213228103Smm struct get_clones_arg gca; 2214228103Smm 2215228103Smm /* 2216228103Smm * if this is a snapshot, then the kernel wasn't able 2217228103Smm * to get the clones. Do it by slowly iterating. 2218228103Smm */ 2219228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2220228103Smm return (NULL); 2221228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2222228103Smm return (NULL); 2223228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2224228103Smm nvlist_free(nv); 2225228103Smm return (NULL); 2226228103Smm } 2227228103Smm 2228228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2229228103Smm gca.value = value; 2230228103Smm gca.origin = zhp->zfs_name; 2231228103Smm 2232228103Smm if (gca.numclones != 0) { 2233228103Smm zfs_handle_t *root; 2234307108Smav char pool[ZFS_MAX_DATASET_NAME_LEN]; 2235228103Smm char *cp = pool; 2236228103Smm 2237228103Smm /* get the pool name */ 2238228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2239228103Smm (void) strsep(&cp, "/@"); 2240228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2241228103Smm ZFS_TYPE_FILESYSTEM); 2242228103Smm 2243228103Smm (void) get_clones_cb(root, &gca); 2244228103Smm } 2245228103Smm 2246228103Smm if (gca.numclones != 0 || 2247228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2248228103Smm nvlist_add_nvlist(zhp->zfs_props, 2249228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2250228103Smm nvlist_free(nv); 2251228103Smm nvlist_free(value); 2252228103Smm return (NULL); 2253228103Smm } 2254228103Smm nvlist_free(nv); 2255228103Smm nvlist_free(value); 2256228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2257228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2258228103Smm } 2259228103Smm 2260228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2261228103Smm 2262228103Smm return (value); 2263228103Smm} 2264228103Smm 2265168404Spjd/* 2266168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2267168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2268168404Spjd * human-readable form. 2269168404Spjd * 2270168404Spjd * Returns 0 on success, or -1 on error. 2271168404Spjd */ 2272168404Spjdint 2273168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2274185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2275168404Spjd{ 2276168404Spjd char *source = NULL; 2277168404Spjd uint64_t val; 2278289362Smav const char *str; 2279168404Spjd const char *strval; 2280219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2281168404Spjd 2282168404Spjd /* 2283168404Spjd * Check to see if this property applies to our object 2284168404Spjd */ 2285168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2286168404Spjd return (-1); 2287168404Spjd 2288219089Spjd if (received && zfs_prop_readonly(prop)) 2289219089Spjd return (-1); 2290219089Spjd 2291168404Spjd if (src) 2292185029Spjd *src = ZPROP_SRC_NONE; 2293168404Spjd 2294168404Spjd switch (prop) { 2295168404Spjd case ZFS_PROP_CREATION: 2296168404Spjd /* 2297168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2298168404Spjd * this into a string unless 'literal' is specified. 2299168404Spjd */ 2300168404Spjd { 2301168404Spjd val = getprop_uint64(zhp, prop, &source); 2302168404Spjd time_t time = (time_t)val; 2303168404Spjd struct tm t; 2304168404Spjd 2305168404Spjd if (literal || 2306168404Spjd localtime_r(&time, &t) == NULL || 2307168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2308168404Spjd &t) == 0) 2309168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2310168404Spjd } 2311168404Spjd break; 2312168404Spjd 2313168404Spjd case ZFS_PROP_MOUNTPOINT: 2314168404Spjd /* 2315168404Spjd * Getting the precise mountpoint can be tricky. 2316168404Spjd * 2317168404Spjd * - for 'none' or 'legacy', return those values. 2318168404Spjd * - for inherited mountpoints, we want to take everything 2319168404Spjd * after our ancestor and append it to the inherited value. 2320168404Spjd * 2321168404Spjd * If the pool has an alternate root, we want to prepend that 2322168404Spjd * root to any values we return. 2323168404Spjd */ 2324185029Spjd 2325168404Spjd str = getprop_string(zhp, prop, &source); 2326168404Spjd 2327185029Spjd if (str[0] == '/') { 2328185029Spjd char buf[MAXPATHLEN]; 2329185029Spjd char *root = buf; 2330219089Spjd const char *relpath; 2331168404Spjd 2332219089Spjd /* 2333219089Spjd * If we inherit the mountpoint, even from a dataset 2334219089Spjd * with a received value, the source will be the path of 2335219089Spjd * the dataset we inherit from. If source is 2336219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2337219089Spjd * inherited. 2338219089Spjd */ 2339219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2340219089Spjd relpath = ""; 2341219089Spjd } else { 2342219089Spjd relpath = zhp->zfs_name + strlen(source); 2343219089Spjd if (relpath[0] == '/') 2344219089Spjd relpath++; 2345219089Spjd } 2346185029Spjd 2347185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2348263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2349263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2350185029Spjd root[0] = '\0'; 2351185029Spjd /* 2352185029Spjd * Special case an alternate root of '/'. This will 2353185029Spjd * avoid having multiple leading slashes in the 2354185029Spjd * mountpoint path. 2355185029Spjd */ 2356185029Spjd if (strcmp(root, "/") == 0) 2357185029Spjd root++; 2358185029Spjd 2359185029Spjd /* 2360185029Spjd * If the mountpoint is '/' then skip over this 2361185029Spjd * if we are obtaining either an alternate root or 2362185029Spjd * an inherited mountpoint. 2363185029Spjd */ 2364185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2365185029Spjd relpath[0] != '\0')) 2366168404Spjd str++; 2367168404Spjd 2368168404Spjd if (relpath[0] == '\0') 2369168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2370168404Spjd root, str); 2371168404Spjd else 2372168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2373168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2374168404Spjd relpath); 2375168404Spjd } else { 2376168404Spjd /* 'legacy' or 'none' */ 2377168404Spjd (void) strlcpy(propbuf, str, proplen); 2378168404Spjd } 2379168404Spjd 2380168404Spjd break; 2381168404Spjd 2382168404Spjd case ZFS_PROP_ORIGIN: 2383289362Smav str = getprop_string(zhp, prop, &source); 2384289362Smav if (str == NULL) 2385168404Spjd return (-1); 2386289362Smav (void) strlcpy(propbuf, str, proplen); 2387168404Spjd break; 2388168404Spjd 2389228103Smm case ZFS_PROP_CLONES: 2390228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2391228103Smm return (-1); 2392228103Smm break; 2393228103Smm 2394168404Spjd case ZFS_PROP_QUOTA: 2395185029Spjd case ZFS_PROP_REFQUOTA: 2396168404Spjd case ZFS_PROP_RESERVATION: 2397185029Spjd case ZFS_PROP_REFRESERVATION: 2398185029Spjd 2399168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2400168404Spjd return (-1); 2401168404Spjd 2402168404Spjd /* 2403168404Spjd * If quota or reservation is 0, we translate this into 'none' 2404168404Spjd * (unless literal is set), and indicate that it's the default 2405168404Spjd * value. Otherwise, we print the number nicely and indicate 2406168404Spjd * that its set locally. 2407168404Spjd */ 2408168404Spjd if (val == 0) { 2409168404Spjd if (literal) 2410168404Spjd (void) strlcpy(propbuf, "0", proplen); 2411168404Spjd else 2412168404Spjd (void) strlcpy(propbuf, "none", proplen); 2413168404Spjd } else { 2414168404Spjd if (literal) 2415168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2416168404Spjd (u_longlong_t)val); 2417168404Spjd else 2418168404Spjd zfs_nicenum(val, propbuf, proplen); 2419168404Spjd } 2420168404Spjd break; 2421168404Spjd 2422264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2423264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2424264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2425264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2426264835Sdelphij 2427264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2428264835Sdelphij return (-1); 2429264835Sdelphij 2430264835Sdelphij /* 2431264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2432264835Sdelphij * literal is set), and indicate that it's the default value. 2433264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2434264835Sdelphij * set locally. 2435264835Sdelphij */ 2436264835Sdelphij if (literal) { 2437264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2438264835Sdelphij (u_longlong_t)val); 2439264835Sdelphij } else if (val == UINT64_MAX) { 2440264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2441264835Sdelphij } else { 2442264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2443264835Sdelphij } 2444264835Sdelphij break; 2445264835Sdelphij 2446223623Smm case ZFS_PROP_REFRATIO: 2447168404Spjd case ZFS_PROP_COMPRESSRATIO: 2448168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2449168404Spjd return (-1); 2450219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2451219089Spjd (u_longlong_t)(val / 100), 2452219089Spjd (u_longlong_t)(val % 100)); 2453168404Spjd break; 2454168404Spjd 2455168404Spjd case ZFS_PROP_TYPE: 2456168404Spjd switch (zhp->zfs_type) { 2457168404Spjd case ZFS_TYPE_FILESYSTEM: 2458168404Spjd str = "filesystem"; 2459168404Spjd break; 2460168404Spjd case ZFS_TYPE_VOLUME: 2461168404Spjd str = "volume"; 2462168404Spjd break; 2463168404Spjd case ZFS_TYPE_SNAPSHOT: 2464168404Spjd str = "snapshot"; 2465168404Spjd break; 2466260183Sdelphij case ZFS_TYPE_BOOKMARK: 2467260183Sdelphij str = "bookmark"; 2468260183Sdelphij break; 2469168404Spjd default: 2470168404Spjd abort(); 2471168404Spjd } 2472168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2473168404Spjd break; 2474168404Spjd 2475168404Spjd case ZFS_PROP_MOUNTED: 2476168404Spjd /* 2477168404Spjd * The 'mounted' property is a pseudo-property that described 2478168404Spjd * whether the filesystem is currently mounted. Even though 2479168404Spjd * it's a boolean value, the typical values of "on" and "off" 2480168404Spjd * don't make sense, so we translate to "yes" and "no". 2481168404Spjd */ 2482168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2483168404Spjd src, &source, &val) != 0) 2484168404Spjd return (-1); 2485168404Spjd if (val) 2486168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2487168404Spjd else 2488168404Spjd (void) strlcpy(propbuf, "no", proplen); 2489168404Spjd break; 2490168404Spjd 2491168404Spjd case ZFS_PROP_NAME: 2492168404Spjd /* 2493168404Spjd * The 'name' property is a pseudo-property derived from the 2494168404Spjd * dataset name. It is presented as a real property to simplify 2495168404Spjd * consumers. 2496168404Spjd */ 2497168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2498168404Spjd break; 2499168404Spjd 2500219089Spjd case ZFS_PROP_MLSLABEL: 2501219089Spjd { 2502277300Ssmh#ifdef illumos 2503219089Spjd m_label_t *new_sl = NULL; 2504219089Spjd char *ascii = NULL; /* human readable label */ 2505219089Spjd 2506219089Spjd (void) strlcpy(propbuf, 2507219089Spjd getprop_string(zhp, prop, &source), proplen); 2508219089Spjd 2509219089Spjd if (literal || (strcasecmp(propbuf, 2510219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2511219089Spjd break; 2512219089Spjd 2513219089Spjd /* 2514219089Spjd * Try to translate the internal hex string to 2515219089Spjd * human-readable output. If there are any 2516219089Spjd * problems just use the hex string. 2517219089Spjd */ 2518219089Spjd 2519219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2520219089Spjd L_NO_CORRECTION, NULL) == -1) { 2521219089Spjd m_label_free(new_sl); 2522219089Spjd break; 2523219089Spjd } 2524219089Spjd 2525219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2526219089Spjd DEF_NAMES) != 0) { 2527219089Spjd if (ascii) 2528219089Spjd free(ascii); 2529219089Spjd m_label_free(new_sl); 2530219089Spjd break; 2531219089Spjd } 2532219089Spjd m_label_free(new_sl); 2533219089Spjd 2534219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2535219089Spjd free(ascii); 2536277300Ssmh#else /* !illumos */ 2537219089Spjd propbuf[0] = '\0'; 2538277300Ssmh#endif /* illumos */ 2539219089Spjd } 2540219089Spjd break; 2541219089Spjd 2542236705Smm case ZFS_PROP_GUID: 2543236705Smm /* 2544236705Smm * GUIDs are stored as numbers, but they are identifiers. 2545236705Smm * We don't want them to be pretty printed, because pretty 2546236705Smm * printing mangles the ID into a truncated and useless value. 2547236705Smm */ 2548236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2549236705Smm return (-1); 2550236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2551236705Smm break; 2552236705Smm 2553168404Spjd default: 2554185029Spjd switch (zfs_prop_get_type(prop)) { 2555185029Spjd case PROP_TYPE_NUMBER: 2556185029Spjd if (get_numeric_property(zhp, prop, src, 2557185029Spjd &source, &val) != 0) 2558185029Spjd return (-1); 2559185029Spjd if (literal) 2560185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2561185029Spjd (u_longlong_t)val); 2562185029Spjd else 2563185029Spjd zfs_nicenum(val, propbuf, proplen); 2564185029Spjd break; 2565185029Spjd 2566185029Spjd case PROP_TYPE_STRING: 2567289362Smav str = getprop_string(zhp, prop, &source); 2568289362Smav if (str == NULL) 2569289362Smav return (-1); 2570289362Smav (void) strlcpy(propbuf, str, proplen); 2571185029Spjd break; 2572185029Spjd 2573185029Spjd case PROP_TYPE_INDEX: 2574185029Spjd if (get_numeric_property(zhp, prop, src, 2575185029Spjd &source, &val) != 0) 2576185029Spjd return (-1); 2577185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2578185029Spjd return (-1); 2579185029Spjd (void) strlcpy(propbuf, strval, proplen); 2580185029Spjd break; 2581185029Spjd 2582185029Spjd default: 2583185029Spjd abort(); 2584185029Spjd } 2585168404Spjd } 2586168404Spjd 2587168404Spjd get_source(zhp, src, source, statbuf, statlen); 2588168404Spjd 2589168404Spjd return (0); 2590168404Spjd} 2591168404Spjd 2592168404Spjd/* 2593168404Spjd * Utility function to get the given numeric property. Does no validation that 2594168404Spjd * the given property is the appropriate type; should only be used with 2595168404Spjd * hard-coded property types. 2596168404Spjd */ 2597168404Spjduint64_t 2598168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2599168404Spjd{ 2600168404Spjd char *source; 2601168404Spjd uint64_t val; 2602168404Spjd 2603185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2604168404Spjd 2605168404Spjd return (val); 2606168404Spjd} 2607168404Spjd 2608185029Spjdint 2609185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2610185029Spjd{ 2611185029Spjd char buf[64]; 2612185029Spjd 2613209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2614185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2615185029Spjd} 2616185029Spjd 2617168404Spjd/* 2618168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2619168404Spjd */ 2620168404Spjdint 2621168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2622185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2623168404Spjd{ 2624168404Spjd char *source; 2625168404Spjd 2626168404Spjd /* 2627168404Spjd * Check to see if this property applies to our object 2628168404Spjd */ 2629185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2630168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2631168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2632168404Spjd zfs_prop_to_name(prop))); 2633185029Spjd } 2634168404Spjd 2635168404Spjd if (src) 2636185029Spjd *src = ZPROP_SRC_NONE; 2637168404Spjd 2638168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2639168404Spjd return (-1); 2640168404Spjd 2641168404Spjd get_source(zhp, src, source, statbuf, statlen); 2642168404Spjd 2643168404Spjd return (0); 2644168404Spjd} 2645168404Spjd 2646209962Smmstatic int 2647209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2648209962Smm char **domainp, idmap_rid_t *ridp) 2649209962Smm{ 2650277300Ssmh#ifdef illumos 2651209962Smm idmap_get_handle_t *get_hdl = NULL; 2652209962Smm idmap_stat status; 2653209962Smm int err = EINVAL; 2654209962Smm 2655219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2656209962Smm goto out; 2657209962Smm 2658209962Smm if (isuser) { 2659209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2660209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2661209962Smm } else { 2662209962Smm err = idmap_get_sidbygid(get_hdl, id, 2663209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2664209962Smm } 2665209962Smm if (err == IDMAP_SUCCESS && 2666209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2667209962Smm status == IDMAP_SUCCESS) 2668209962Smm err = 0; 2669209962Smm else 2670209962Smm err = EINVAL; 2671209962Smmout: 2672209962Smm if (get_hdl) 2673209962Smm idmap_get_destroy(get_hdl); 2674209962Smm return (err); 2675277300Ssmh#else /* !illumos */ 2676209962Smm assert(!"invalid code path"); 2677264852Ssmh return (EINVAL); // silence compiler warning 2678277300Ssmh#endif /* illumos */ 2679209962Smm} 2680209962Smm 2681168404Spjd/* 2682209962Smm * convert the propname into parameters needed by kernel 2683209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2684209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2685209962Smm */ 2686209962Smmstatic int 2687209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2688209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2689209962Smm{ 2690209962Smm zfs_userquota_prop_t type; 2691209962Smm char *cp, *end; 2692209962Smm char *numericsid = NULL; 2693209962Smm boolean_t isuser; 2694209962Smm 2695209962Smm domain[0] = '\0'; 2696275579Sdelphij *ridp = 0; 2697209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2698209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2699209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2700209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2701209962Smm break; 2702209962Smm } 2703209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2704209962Smm return (EINVAL); 2705209962Smm *typep = type; 2706209962Smm 2707209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2708209962Smm type == ZFS_PROP_USERUSED); 2709209962Smm 2710209962Smm cp = strchr(propname, '@') + 1; 2711209962Smm 2712209962Smm if (strchr(cp, '@')) { 2713277300Ssmh#ifdef illumos 2714209962Smm /* 2715209962Smm * It's a SID name (eg "user@domain") that needs to be 2716209962Smm * turned into S-1-domainID-RID. 2717209962Smm */ 2718275579Sdelphij int flag = 0; 2719275579Sdelphij idmap_stat stat, map_stat; 2720275579Sdelphij uid_t pid; 2721275579Sdelphij idmap_rid_t rid; 2722275579Sdelphij idmap_get_handle_t *gh = NULL; 2723275579Sdelphij 2724275579Sdelphij stat = idmap_get_create(&gh); 2725275579Sdelphij if (stat != IDMAP_SUCCESS) { 2726275579Sdelphij idmap_get_destroy(gh); 2727275579Sdelphij return (ENOMEM); 2728275579Sdelphij } 2729209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2730209962Smm return (ENOENT); 2731209962Smm if (isuser) { 2732275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2733275579Sdelphij if (stat < 0) 2734275579Sdelphij return (ENOENT); 2735275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2736275579Sdelphij &rid, &map_stat); 2737209962Smm } else { 2738275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2739275579Sdelphij if (stat < 0) 2740275579Sdelphij return (ENOENT); 2741275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2742275579Sdelphij &rid, &map_stat); 2743209962Smm } 2744275579Sdelphij if (stat < 0) { 2745275579Sdelphij idmap_get_destroy(gh); 2746209962Smm return (ENOENT); 2747209962Smm } 2748275579Sdelphij stat = idmap_get_mappings(gh); 2749275579Sdelphij idmap_get_destroy(gh); 2750275579Sdelphij 2751275579Sdelphij if (stat < 0) { 2752275579Sdelphij return (ENOENT); 2753275579Sdelphij } 2754209962Smm if (numericsid == NULL) 2755209962Smm return (ENOENT); 2756209962Smm cp = numericsid; 2757275579Sdelphij *ridp = rid; 2758209962Smm /* will be further decoded below */ 2759277300Ssmh#else /* !illumos */ 2760219089Spjd return (ENOENT); 2761277300Ssmh#endif /* illumos */ 2762209962Smm } 2763209962Smm 2764209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2765209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2766209962Smm (void) strlcpy(domain, cp, domainlen); 2767209962Smm errno = 0; 2768275579Sdelphij if (*ridp == 0) { 2769275579Sdelphij cp = strrchr(domain, '-'); 2770275579Sdelphij *cp = '\0'; 2771275579Sdelphij cp++; 2772275579Sdelphij *ridp = strtoull(cp, &end, 10); 2773275579Sdelphij } else { 2774275579Sdelphij end = ""; 2775275579Sdelphij } 2776209962Smm if (numericsid) { 2777209962Smm free(numericsid); 2778209962Smm numericsid = NULL; 2779209962Smm } 2780209962Smm if (errno != 0 || *end != '\0') 2781209962Smm return (EINVAL); 2782209962Smm } else if (!isdigit(*cp)) { 2783209962Smm /* 2784209962Smm * It's a user/group name (eg "user") that needs to be 2785209962Smm * turned into a uid/gid 2786209962Smm */ 2787209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2788209962Smm return (ENOENT); 2789209962Smm if (isuser) { 2790209962Smm struct passwd *pw; 2791209962Smm pw = getpwnam(cp); 2792209962Smm if (pw == NULL) 2793209962Smm return (ENOENT); 2794209962Smm *ridp = pw->pw_uid; 2795209962Smm } else { 2796209962Smm struct group *gr; 2797209962Smm gr = getgrnam(cp); 2798209962Smm if (gr == NULL) 2799209962Smm return (ENOENT); 2800209962Smm *ridp = gr->gr_gid; 2801209962Smm } 2802209962Smm } else { 2803209962Smm /* It's a user/group ID (eg "12345"). */ 2804209962Smm uid_t id = strtoul(cp, &end, 10); 2805209962Smm idmap_rid_t rid; 2806209962Smm char *mapdomain; 2807209962Smm 2808209962Smm if (*end != '\0') 2809209962Smm return (EINVAL); 2810209962Smm if (id > MAXUID) { 2811209962Smm /* It's an ephemeral ID. */ 2812209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2813209962Smm &mapdomain, &rid) != 0) 2814209962Smm return (ENOENT); 2815209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2816209962Smm *ridp = rid; 2817209962Smm } else { 2818209962Smm *ridp = id; 2819209962Smm } 2820209962Smm } 2821209962Smm 2822209962Smm ASSERT3P(numericsid, ==, NULL); 2823209962Smm return (0); 2824209962Smm} 2825209962Smm 2826209962Smmstatic int 2827209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2828209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2829209962Smm{ 2830209962Smm int err; 2831209962Smm zfs_cmd_t zc = { 0 }; 2832209962Smm 2833228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2834209962Smm 2835209962Smm err = userquota_propname_decode(propname, 2836209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2837209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2838209962Smm zc.zc_objset_type = *typep; 2839209962Smm if (err) 2840209962Smm return (err); 2841209962Smm 2842209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2843209962Smm if (err) 2844209962Smm return (err); 2845209962Smm 2846209962Smm *propvalue = zc.zc_cookie; 2847209962Smm return (0); 2848209962Smm} 2849209962Smm 2850209962Smmint 2851209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2852209962Smm uint64_t *propvalue) 2853209962Smm{ 2854209962Smm zfs_userquota_prop_t type; 2855209962Smm 2856209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2857209962Smm &type)); 2858209962Smm} 2859209962Smm 2860209962Smmint 2861209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2862209962Smm char *propbuf, int proplen, boolean_t literal) 2863209962Smm{ 2864209962Smm int err; 2865209962Smm uint64_t propvalue; 2866209962Smm zfs_userquota_prop_t type; 2867209962Smm 2868209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2869209962Smm &type); 2870209962Smm 2871209962Smm if (err) 2872209962Smm return (err); 2873209962Smm 2874209962Smm if (literal) { 2875209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2876209962Smm } else if (propvalue == 0 && 2877209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2878209962Smm (void) strlcpy(propbuf, "none", proplen); 2879209962Smm } else { 2880209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2881209962Smm } 2882209962Smm return (0); 2883209962Smm} 2884209962Smm 2885228103Smmint 2886228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2887228103Smm uint64_t *propvalue) 2888168404Spjd{ 2889228103Smm int err; 2890228103Smm zfs_cmd_t zc = { 0 }; 2891228103Smm const char *snapname; 2892168404Spjd 2893228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2894168404Spjd 2895228103Smm snapname = strchr(propname, '@') + 1; 2896228103Smm if (strchr(snapname, '@')) { 2897228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2898228103Smm } else { 2899228103Smm /* snapname is the short name, append it to zhp's fsname */ 2900228103Smm char *cp; 2901209962Smm 2902228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2903228103Smm sizeof (zc.zc_value)); 2904228103Smm cp = strchr(zc.zc_value, '@'); 2905228103Smm if (cp != NULL) 2906228103Smm *cp = '\0'; 2907228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2908228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2909228103Smm } 2910209962Smm 2911228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2912228103Smm if (err) 2913228103Smm return (err); 2914228103Smm 2915228103Smm *propvalue = zc.zc_cookie; 2916228103Smm return (0); 2917209962Smm} 2918209962Smm 2919168404Spjdint 2920228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2921228103Smm char *propbuf, int proplen, boolean_t literal) 2922168404Spjd{ 2923228103Smm int err; 2924228103Smm uint64_t propvalue; 2925168404Spjd 2926228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2927185029Spjd 2928228103Smm if (err) 2929228103Smm return (err); 2930209962Smm 2931228103Smm if (literal) { 2932228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2933228103Smm } else { 2934228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2935168404Spjd } 2936228103Smm return (0); 2937168404Spjd} 2938168404Spjd 2939168404Spjd/* 2940228103Smm * Returns the name of the given zfs handle. 2941168404Spjd */ 2942228103Smmconst char * 2943228103Smmzfs_get_name(const zfs_handle_t *zhp) 2944168404Spjd{ 2945228103Smm return (zhp->zfs_name); 2946228103Smm} 2947168404Spjd 2948228103Smm/* 2949307106Smav * Returns the name of the parent pool for the given zfs handle. 2950307106Smav */ 2951307106Smavconst char * 2952307106Smavzfs_get_pool_name(const zfs_handle_t *zhp) 2953307106Smav{ 2954307106Smav return (zhp->zpool_hdl->zpool_name); 2955307106Smav} 2956307106Smav 2957307106Smav/* 2958228103Smm * Returns the type of the given zfs handle. 2959228103Smm */ 2960228103Smmzfs_type_t 2961228103Smmzfs_get_type(const zfs_handle_t *zhp) 2962228103Smm{ 2963228103Smm return (zhp->zfs_type); 2964168404Spjd} 2965168404Spjd 2966168404Spjd/* 2967219089Spjd * Is one dataset name a child dataset of another? 2968219089Spjd * 2969219089Spjd * Needs to handle these cases: 2970219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2971219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2972219089Spjd * Descendant? No. No. No. Yes. 2973219089Spjd */ 2974219089Spjdstatic boolean_t 2975219089Spjdis_descendant(const char *ds1, const char *ds2) 2976219089Spjd{ 2977219089Spjd size_t d1len = strlen(ds1); 2978219089Spjd 2979219089Spjd /* ds2 can't be a descendant if it's smaller */ 2980219089Spjd if (strlen(ds2) < d1len) 2981219089Spjd return (B_FALSE); 2982219089Spjd 2983219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2984219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2985219089Spjd} 2986219089Spjd 2987219089Spjd/* 2988168404Spjd * Given a complete name, return just the portion that refers to the parent. 2989228103Smm * Will return -1 if there is no parent (path is just the name of the 2990228103Smm * pool). 2991168404Spjd */ 2992168404Spjdstatic int 2993168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2994168404Spjd{ 2995228103Smm char *slashp; 2996168404Spjd 2997228103Smm (void) strlcpy(buf, path, buflen); 2998228103Smm 2999228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 3000168404Spjd return (-1); 3001228103Smm *slashp = '\0'; 3002168404Spjd 3003168404Spjd return (0); 3004168404Spjd} 3005168404Spjd 3006168404Spjd/* 3007185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 3008185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 3009185029Spjd * closest existing ancestor for the given path. In prefixlen return the 3010185029Spjd * length of already existing prefix of the given path. We also fetch the 3011185029Spjd * 'zoned' property, which is used to validate property settings when creating 3012185029Spjd * new datasets. 3013168404Spjd */ 3014168404Spjdstatic int 3015185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 3016185029Spjd boolean_t accept_ancestor, int *prefixlen) 3017168404Spjd{ 3018168404Spjd zfs_cmd_t zc = { 0 }; 3019307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3020168404Spjd char *slash; 3021168404Spjd zfs_handle_t *zhp; 3022168404Spjd char errbuf[1024]; 3023219089Spjd uint64_t is_zoned; 3024168404Spjd 3025209962Smm (void) snprintf(errbuf, sizeof (errbuf), 3026209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 3027168404Spjd 3028168404Spjd /* get parent, and check to see if this is just a pool */ 3029168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 3030168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3031168404Spjd "missing dataset name")); 3032168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3033168404Spjd } 3034168404Spjd 3035168404Spjd /* check to see if the pool exists */ 3036168404Spjd if ((slash = strchr(parent, '/')) == NULL) 3037168404Spjd slash = parent + strlen(parent); 3038168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 3039168404Spjd zc.zc_name[slash - parent] = '\0'; 3040168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 3041168404Spjd errno == ENOENT) { 3042168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3043168404Spjd "no such pool '%s'"), zc.zc_name); 3044168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3045168404Spjd } 3046168404Spjd 3047168404Spjd /* check to see if the parent dataset exists */ 3048185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 3049185029Spjd if (errno == ENOENT && accept_ancestor) { 3050185029Spjd /* 3051185029Spjd * Go deeper to find an ancestor, give up on top level. 3052185029Spjd */ 3053185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 3054185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3055185029Spjd "no such pool '%s'"), zc.zc_name); 3056185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3057185029Spjd } 3058185029Spjd } else if (errno == ENOENT) { 3059168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3060168404Spjd "parent does not exist")); 3061168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3062185029Spjd } else 3063168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3064168404Spjd } 3065168404Spjd 3066219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 3067219089Spjd if (zoned != NULL) 3068219089Spjd *zoned = is_zoned; 3069219089Spjd 3070168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 3071219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 3072168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 3073168404Spjd zfs_close(zhp); 3074168404Spjd return (-1); 3075168404Spjd } 3076168404Spjd 3077168404Spjd /* make sure parent is a filesystem */ 3078168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3079168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3080168404Spjd "parent is not a filesystem")); 3081168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3082168404Spjd zfs_close(zhp); 3083168404Spjd return (-1); 3084168404Spjd } 3085168404Spjd 3086168404Spjd zfs_close(zhp); 3087185029Spjd if (prefixlen != NULL) 3088185029Spjd *prefixlen = strlen(parent); 3089168404Spjd return (0); 3090168404Spjd} 3091168404Spjd 3092168404Spjd/* 3093185029Spjd * Finds whether the dataset of the given type(s) exists. 3094185029Spjd */ 3095185029Spjdboolean_t 3096185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3097185029Spjd{ 3098185029Spjd zfs_handle_t *zhp; 3099185029Spjd 3100185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3101185029Spjd return (B_FALSE); 3102185029Spjd 3103185029Spjd /* 3104185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3105185029Spjd */ 3106185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3107185029Spjd int ds_type = zhp->zfs_type; 3108185029Spjd 3109185029Spjd zfs_close(zhp); 3110185029Spjd if (types & ds_type) 3111185029Spjd return (B_TRUE); 3112185029Spjd } 3113185029Spjd return (B_FALSE); 3114185029Spjd} 3115185029Spjd 3116185029Spjd/* 3117185029Spjd * Given a path to 'target', create all the ancestors between 3118185029Spjd * the prefixlen portion of the path, and the target itself. 3119185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3120185029Spjd */ 3121185029Spjdint 3122185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3123185029Spjd{ 3124185029Spjd zfs_handle_t *h; 3125185029Spjd char *cp; 3126185029Spjd const char *opname; 3127185029Spjd 3128185029Spjd /* make sure prefix exists */ 3129185029Spjd cp = target + prefixlen; 3130185029Spjd if (*cp != '/') { 3131185029Spjd assert(strchr(cp, '/') == NULL); 3132185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3133185029Spjd } else { 3134185029Spjd *cp = '\0'; 3135185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3136185029Spjd *cp = '/'; 3137185029Spjd } 3138185029Spjd if (h == NULL) 3139185029Spjd return (-1); 3140185029Spjd zfs_close(h); 3141185029Spjd 3142185029Spjd /* 3143185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3144185029Spjd * up to the prefixlen-long one. 3145185029Spjd */ 3146185029Spjd for (cp = target + prefixlen + 1; 3147307050Smav (cp = strchr(cp, '/')) != NULL; *cp = '/', cp++) { 3148185029Spjd 3149185029Spjd *cp = '\0'; 3150185029Spjd 3151185029Spjd h = make_dataset_handle(hdl, target); 3152185029Spjd if (h) { 3153185029Spjd /* it already exists, nothing to do here */ 3154185029Spjd zfs_close(h); 3155185029Spjd continue; 3156185029Spjd } 3157185029Spjd 3158185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3159185029Spjd NULL) != 0) { 3160185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3161185029Spjd goto ancestorerr; 3162185029Spjd } 3163185029Spjd 3164185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3165185029Spjd if (h == NULL) { 3166185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3167185029Spjd goto ancestorerr; 3168185029Spjd } 3169185029Spjd 3170185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3171185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3172185029Spjd goto ancestorerr; 3173185029Spjd } 3174185029Spjd 3175185029Spjd if (zfs_share(h) != 0) { 3176185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3177185029Spjd goto ancestorerr; 3178185029Spjd } 3179185029Spjd 3180185029Spjd zfs_close(h); 3181185029Spjd } 3182185029Spjd 3183185029Spjd return (0); 3184185029Spjd 3185185029Spjdancestorerr: 3186185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3187185029Spjd "failed to %s ancestor '%s'"), opname, target); 3188185029Spjd return (-1); 3189185029Spjd} 3190185029Spjd 3191185029Spjd/* 3192185029Spjd * Creates non-existing ancestors of the given path. 3193185029Spjd */ 3194185029Spjdint 3195185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3196185029Spjd{ 3197185029Spjd int prefix; 3198185029Spjd char *path_copy; 3199307107Smav int rc = 0; 3200185029Spjd 3201219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3202185029Spjd return (-1); 3203185029Spjd 3204185029Spjd if ((path_copy = strdup(path)) != NULL) { 3205185029Spjd rc = create_parents(hdl, path_copy, prefix); 3206185029Spjd free(path_copy); 3207185029Spjd } 3208185029Spjd if (path_copy == NULL || rc != 0) 3209185029Spjd return (-1); 3210185029Spjd 3211185029Spjd return (0); 3212185029Spjd} 3213185029Spjd 3214185029Spjd/* 3215168404Spjd * Create a new filesystem or volume. 3216168404Spjd */ 3217168404Spjdint 3218168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3219168404Spjd nvlist_t *props) 3220168404Spjd{ 3221168404Spjd int ret; 3222168404Spjd uint64_t size = 0; 3223168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3224168404Spjd char errbuf[1024]; 3225168404Spjd uint64_t zoned; 3226298472Savg enum lzc_dataset_type ost; 3227168404Spjd 3228168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3229168404Spjd "cannot create '%s'"), path); 3230168404Spjd 3231168404Spjd /* validate the path, taking care to note the extended error message */ 3232185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3233168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3234168404Spjd 3235168404Spjd /* validate parents exist */ 3236185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3237168404Spjd return (-1); 3238168404Spjd 3239168404Spjd /* 3240168404Spjd * The failure modes when creating a dataset of a different type over 3241168404Spjd * one that already exists is a little strange. In particular, if you 3242168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3243168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3244168404Spjd * first try to see if the dataset exists. 3245168404Spjd */ 3246248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3247168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3248168404Spjd "dataset already exists")); 3249168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3250168404Spjd } 3251168404Spjd 3252168404Spjd if (type == ZFS_TYPE_VOLUME) 3253298472Savg ost = LZC_DATSET_TYPE_ZVOL; 3254168404Spjd else 3255298472Savg ost = LZC_DATSET_TYPE_ZFS; 3256168404Spjd 3257289500Smav /* open zpool handle for prop validation */ 3258307108Smav char pool_path[ZFS_MAX_DATASET_NAME_LEN]; 3259289500Smav (void) strlcpy(pool_path, path, sizeof (pool_path)); 3260289500Smav 3261289500Smav /* truncate pool_path at first slash */ 3262289500Smav char *p = strchr(pool_path, '/'); 3263289500Smav if (p != NULL) 3264289500Smav *p = '\0'; 3265289500Smav 3266289500Smav zpool_handle_t *zpool_handle = zpool_open(hdl, pool_path); 3267289500Smav 3268185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3269289500Smav zoned, NULL, zpool_handle, errbuf)) == 0) { 3270289500Smav zpool_close(zpool_handle); 3271168404Spjd return (-1); 3272289500Smav } 3273289500Smav zpool_close(zpool_handle); 3274168404Spjd 3275168404Spjd if (type == ZFS_TYPE_VOLUME) { 3276168404Spjd /* 3277168404Spjd * If we are creating a volume, the size and block size must 3278168404Spjd * satisfy a few restraints. First, the blocksize must be a 3279168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3280168404Spjd * volsize must be a multiple of the block size, and cannot be 3281168404Spjd * zero. 3282168404Spjd */ 3283168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3284168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3285168404Spjd nvlist_free(props); 3286168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3287168404Spjd "missing volume size")); 3288168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3289168404Spjd } 3290168404Spjd 3291168404Spjd if ((ret = nvlist_lookup_uint64(props, 3292168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3293168404Spjd &blocksize)) != 0) { 3294168404Spjd if (ret == ENOENT) { 3295168404Spjd blocksize = zfs_prop_default_numeric( 3296168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3297168404Spjd } else { 3298168404Spjd nvlist_free(props); 3299168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3300168404Spjd "missing volume block size")); 3301168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3302168404Spjd } 3303168404Spjd } 3304168404Spjd 3305168404Spjd if (size == 0) { 3306168404Spjd nvlist_free(props); 3307168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3308168404Spjd "volume size cannot be zero")); 3309168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3310168404Spjd } 3311168404Spjd 3312168404Spjd if (size % blocksize != 0) { 3313168404Spjd nvlist_free(props); 3314168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3315168404Spjd "volume size must be a multiple of volume block " 3316168404Spjd "size")); 3317168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3318168404Spjd } 3319168404Spjd } 3320168404Spjd 3321248571Smm /* create the dataset */ 3322248571Smm ret = lzc_create(path, ost, props); 3323168404Spjd nvlist_free(props); 3324168404Spjd 3325168404Spjd /* check for failure */ 3326168404Spjd if (ret != 0) { 3327307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3328168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3329168404Spjd 3330168404Spjd switch (errno) { 3331168404Spjd case ENOENT: 3332168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3333168404Spjd "no such parent '%s'"), parent); 3334168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3335168404Spjd 3336168404Spjd case EINVAL: 3337168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3338168404Spjd "parent '%s' is not a filesystem"), parent); 3339168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3340168404Spjd 3341185029Spjd case ENOTSUP: 3342185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3343185029Spjd "pool must be upgraded to set this " 3344185029Spjd "property or value")); 3345185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3346168404Spjd#ifdef _ILP32 3347168404Spjd case EOVERFLOW: 3348168404Spjd /* 3349168404Spjd * This platform can't address a volume this big. 3350168404Spjd */ 3351168404Spjd if (type == ZFS_TYPE_VOLUME) 3352168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3353168404Spjd errbuf)); 3354168404Spjd#endif 3355168404Spjd /* FALLTHROUGH */ 3356168404Spjd default: 3357168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3358168404Spjd } 3359168404Spjd } 3360168404Spjd 3361168404Spjd return (0); 3362168404Spjd} 3363168404Spjd 3364168404Spjd/* 3365168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3366238422Smm * isn't mounted, and that there are no active dependents. If the file system 3367238422Smm * does not exist this function does nothing. 3368168404Spjd */ 3369168404Spjdint 3370219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3371168404Spjd{ 3372168404Spjd zfs_cmd_t zc = { 0 }; 3373168404Spjd 3374260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3375260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3376260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3377260183Sdelphij int error = lzc_destroy_bookmarks(nv, NULL); 3378260183Sdelphij fnvlist_free(nv); 3379260183Sdelphij if (error != 0) { 3380260183Sdelphij return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3381260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3382260183Sdelphij zhp->zfs_name)); 3383260183Sdelphij } 3384260183Sdelphij return (0); 3385260183Sdelphij } 3386260183Sdelphij 3387168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3388168404Spjd 3389168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3390168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3391168404Spjd } else { 3392168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3393168404Spjd } 3394168404Spjd 3395219089Spjd zc.zc_defer_destroy = defer; 3396238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3397238422Smm errno != ENOENT) { 3398168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3399168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3400168404Spjd zhp->zfs_name)); 3401168404Spjd } 3402168404Spjd 3403168404Spjd remove_mountpoint(zhp); 3404168404Spjd 3405168404Spjd return (0); 3406168404Spjd} 3407168404Spjd 3408168404Spjdstruct destroydata { 3409228103Smm nvlist_t *nvl; 3410228103Smm const char *snapname; 3411168404Spjd}; 3412168404Spjd 3413168404Spjdstatic int 3414219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3415168404Spjd{ 3416168404Spjd struct destroydata *dd = arg; 3417307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 3418219089Spjd int rv = 0; 3419168404Spjd 3420228103Smm (void) snprintf(name, sizeof (name), 3421228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3422168404Spjd 3423251646Sdelphij if (lzc_exists(name)) 3424228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3425168404Spjd 3426228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3427228103Smm zfs_close(zhp); 3428168404Spjd return (rv); 3429168404Spjd} 3430168404Spjd 3431168404Spjd/* 3432168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3433168404Spjd */ 3434168404Spjdint 3435219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3436168404Spjd{ 3437168404Spjd int ret; 3438168404Spjd struct destroydata dd = { 0 }; 3439168404Spjd 3440168404Spjd dd.snapname = snapname; 3441228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3442228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3443168404Spjd 3444251646Sdelphij if (nvlist_empty(dd.nvl)) { 3445228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3446168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3447228103Smm zhp->zfs_name, snapname); 3448228103Smm } else { 3449248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3450168404Spjd } 3451228103Smm nvlist_free(dd.nvl); 3452228103Smm return (ret); 3453228103Smm} 3454168404Spjd 3455228103Smm/* 3456248571Smm * Destroys all the snapshots named in the nvlist. 3457228103Smm */ 3458228103Smmint 3459248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3460228103Smm{ 3461228103Smm int ret; 3462307105Smav nvlist_t *errlist = NULL; 3463228103Smm 3464248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3465168404Spjd 3466307105Smav if (ret == 0) { 3467307105Smav nvlist_free(errlist); 3468248571Smm return (0); 3469307105Smav } 3470248571Smm 3471251646Sdelphij if (nvlist_empty(errlist)) { 3472168404Spjd char errbuf[1024]; 3473248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3474248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3475168404Spjd 3476248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3477248571Smm } 3478248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3479248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3480248571Smm char errbuf[1024]; 3481248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3482248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3483248571Smm nvpair_name(pair)); 3484168404Spjd 3485248571Smm switch (fnvpair_value_int32(pair)) { 3486168404Spjd case EEXIST: 3487248571Smm zfs_error_aux(hdl, 3488248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3489248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3490248571Smm break; 3491168404Spjd default: 3492248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3493248571Smm break; 3494168404Spjd } 3495168404Spjd } 3496168404Spjd 3497307105Smav nvlist_free(errlist); 3498248571Smm return (ret); 3499168404Spjd} 3500168404Spjd 3501168404Spjd/* 3502168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3503168404Spjd */ 3504168404Spjdint 3505168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3506168404Spjd{ 3507307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3508168404Spjd int ret; 3509168404Spjd char errbuf[1024]; 3510168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3511168404Spjd uint64_t zoned; 3512168404Spjd 3513168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3514168404Spjd 3515168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3516168404Spjd "cannot create '%s'"), target); 3517168404Spjd 3518228103Smm /* validate the target/clone name */ 3519185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3520168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3521168404Spjd 3522168404Spjd /* validate parents exist */ 3523185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3524168404Spjd return (-1); 3525168404Spjd 3526168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3527168404Spjd 3528168404Spjd /* do the clone */ 3529168404Spjd 3530168404Spjd if (props) { 3531248571Smm zfs_type_t type; 3532248571Smm if (ZFS_IS_VOLUME(zhp)) { 3533248571Smm type = ZFS_TYPE_VOLUME; 3534248571Smm } else { 3535248571Smm type = ZFS_TYPE_FILESYSTEM; 3536248571Smm } 3537185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3538289500Smav zhp, zhp->zpool_hdl, errbuf)) == NULL) 3539168404Spjd return (-1); 3540168404Spjd } 3541168404Spjd 3542248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3543248571Smm nvlist_free(props); 3544168404Spjd 3545168404Spjd if (ret != 0) { 3546168404Spjd switch (errno) { 3547168404Spjd 3548168404Spjd case ENOENT: 3549168404Spjd /* 3550168404Spjd * The parent doesn't exist. We should have caught this 3551168404Spjd * above, but there may a race condition that has since 3552168404Spjd * destroyed the parent. 3553168404Spjd * 3554168404Spjd * At this point, we don't know whether it's the source 3555168404Spjd * that doesn't exist anymore, or whether the target 3556168404Spjd * dataset doesn't exist. 3557168404Spjd */ 3558168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3559168404Spjd "no such parent '%s'"), parent); 3560168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3561168404Spjd 3562168404Spjd case EXDEV: 3563168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3564168404Spjd "source and target pools differ")); 3565168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3566168404Spjd errbuf)); 3567168404Spjd 3568168404Spjd default: 3569168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3570168404Spjd errbuf)); 3571168404Spjd } 3572168404Spjd } 3573168404Spjd 3574168404Spjd return (ret); 3575168404Spjd} 3576168404Spjd 3577168404Spjd/* 3578168404Spjd * Promotes the given clone fs to be the clone parent. 3579168404Spjd */ 3580168404Spjdint 3581168404Spjdzfs_promote(zfs_handle_t *zhp) 3582168404Spjd{ 3583168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3584168404Spjd zfs_cmd_t zc = { 0 }; 3585168404Spjd char parent[MAXPATHLEN]; 3586168404Spjd int ret; 3587168404Spjd char errbuf[1024]; 3588168404Spjd 3589168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3590168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3591168404Spjd 3592168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3593168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3594168404Spjd "snapshots can not be promoted")); 3595168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3596168404Spjd } 3597168404Spjd 3598185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3599168404Spjd if (parent[0] == '\0') { 3600168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3601168404Spjd "not a cloned filesystem")); 3602168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3603168404Spjd } 3604168404Spjd 3605185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3606168404Spjd sizeof (zc.zc_value)); 3607168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3608185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3609168404Spjd 3610168404Spjd if (ret != 0) { 3611168404Spjd int save_errno = errno; 3612168404Spjd 3613168404Spjd switch (save_errno) { 3614168404Spjd case EEXIST: 3615219089Spjd /* There is a conflicting snapshot name. */ 3616168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3617219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3618219089Spjd zc.zc_string, parent); 3619168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3620168404Spjd 3621168404Spjd default: 3622168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3623168404Spjd } 3624168404Spjd } 3625168404Spjd return (ret); 3626168404Spjd} 3627168404Spjd 3628248571Smmtypedef struct snapdata { 3629248571Smm nvlist_t *sd_nvl; 3630248571Smm const char *sd_snapname; 3631248571Smm} snapdata_t; 3632248571Smm 3633248571Smmstatic int 3634248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3635248571Smm{ 3636248571Smm snapdata_t *sd = arg; 3637307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 3638248571Smm int rv = 0; 3639248571Smm 3640253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3641253819Sdelphij (void) snprintf(name, sizeof (name), 3642253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3643248571Smm 3644253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3645248571Smm 3646253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3647253819Sdelphij } 3648248571Smm zfs_close(zhp); 3649253819Sdelphij 3650248571Smm return (rv); 3651248571Smm} 3652248571Smm 3653168404Spjd/* 3654248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3655248571Smm * created. 3656168404Spjd */ 3657168404Spjdint 3658248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3659168404Spjd{ 3660168404Spjd int ret; 3661168404Spjd char errbuf[1024]; 3662248571Smm nvpair_t *elem; 3663248571Smm nvlist_t *errors; 3664168404Spjd 3665168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3666248571Smm "cannot create snapshots ")); 3667168404Spjd 3668248571Smm elem = NULL; 3669248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3670248571Smm const char *snapname = nvpair_name(elem); 3671168404Spjd 3672248571Smm /* validate the target name */ 3673248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3674248571Smm B_TRUE)) { 3675248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3676248571Smm dgettext(TEXT_DOMAIN, 3677248571Smm "cannot create snapshot '%s'"), snapname); 3678248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3679248571Smm } 3680248571Smm } 3681185029Spjd 3682289500Smav /* 3683289500Smav * get pool handle for prop validation. assumes all snaps are in the 3684289500Smav * same pool, as does lzc_snapshot (below). 3685289500Smav */ 3686307108Smav char pool[ZFS_MAX_DATASET_NAME_LEN]; 3687289500Smav elem = nvlist_next_nvpair(snaps, NULL); 3688289500Smav (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); 3689289500Smav pool[strcspn(pool, "/@")] = '\0'; 3690289500Smav zpool_handle_t *zpool_hdl = zpool_open(hdl, pool); 3691289500Smav 3692248571Smm if (props != NULL && 3693248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3694289500Smav props, B_FALSE, NULL, zpool_hdl, errbuf)) == NULL) { 3695289500Smav zpool_close(zpool_hdl); 3696248571Smm return (-1); 3697248571Smm } 3698289500Smav zpool_close(zpool_hdl); 3699248571Smm 3700248571Smm ret = lzc_snapshot(snaps, props, &errors); 3701248571Smm 3702248571Smm if (ret != 0) { 3703248571Smm boolean_t printed = B_FALSE; 3704248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3705248571Smm elem != NULL; 3706248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3707248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3708248571Smm dgettext(TEXT_DOMAIN, 3709248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3710248571Smm (void) zfs_standard_error(hdl, 3711248571Smm fnvpair_value_int32(elem), errbuf); 3712248571Smm printed = B_TRUE; 3713185029Spjd } 3714248571Smm if (!printed) { 3715248571Smm switch (ret) { 3716248571Smm case EXDEV: 3717248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3718248571Smm "multiple snapshots of same " 3719248571Smm "fs not allowed")); 3720248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3721185029Spjd 3722248571Smm break; 3723248571Smm default: 3724248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3725248571Smm } 3726248571Smm } 3727185029Spjd } 3728185029Spjd 3729248571Smm nvlist_free(props); 3730248571Smm nvlist_free(errors); 3731248571Smm return (ret); 3732248571Smm} 3733168404Spjd 3734248571Smmint 3735248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3736248571Smm nvlist_t *props) 3737248571Smm{ 3738248571Smm int ret; 3739248571Smm snapdata_t sd = { 0 }; 3740307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 3741248571Smm char *cp; 3742248571Smm zfs_handle_t *zhp; 3743248571Smm char errbuf[1024]; 3744248571Smm 3745248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3746248571Smm "cannot snapshot %s"), path); 3747248571Smm 3748248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3749248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3750248571Smm 3751248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3752248571Smm cp = strchr(fsname, '@'); 3753248571Smm *cp = '\0'; 3754248571Smm sd.sd_snapname = cp + 1; 3755248571Smm 3756248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3757168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3758168404Spjd return (-1); 3759168404Spjd } 3760168404Spjd 3761248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3762248571Smm if (recursive) { 3763248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3764248571Smm } else { 3765248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3766168404Spjd } 3767168404Spjd 3768248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3769248571Smm nvlist_free(sd.sd_nvl); 3770168404Spjd zfs_close(zhp); 3771168404Spjd return (ret); 3772168404Spjd} 3773168404Spjd 3774168404Spjd/* 3775168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3776168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3777168404Spjd * is a dependent and we should just destroy it without checking the transaction 3778168404Spjd * group. 3779168404Spjd */ 3780168404Spjdtypedef struct rollback_data { 3781168404Spjd const char *cb_target; /* the snapshot */ 3782168404Spjd uint64_t cb_create; /* creation time reference */ 3783185029Spjd boolean_t cb_error; 3784185029Spjd boolean_t cb_force; 3785168404Spjd} rollback_data_t; 3786168404Spjd 3787168404Spjdstatic int 3788260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 3789168404Spjd{ 3790168404Spjd rollback_data_t *cbp = data; 3791260183Sdelphij prop_changelist_t *clp; 3792168404Spjd 3793260183Sdelphij /* We must destroy this clone; first unmount it */ 3794260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3795260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 3796260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 3797260183Sdelphij cbp->cb_error = B_TRUE; 3798260183Sdelphij zfs_close(zhp); 3799260183Sdelphij return (0); 3800260183Sdelphij } 3801260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 3802260183Sdelphij cbp->cb_error = B_TRUE; 3803260183Sdelphij else 3804260183Sdelphij changelist_remove(clp, zhp->zfs_name); 3805260183Sdelphij (void) changelist_postfix(clp); 3806260183Sdelphij changelist_free(clp); 3807168404Spjd 3808260183Sdelphij zfs_close(zhp); 3809260183Sdelphij return (0); 3810260183Sdelphij} 3811168404Spjd 3812260183Sdelphijstatic int 3813260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 3814260183Sdelphij{ 3815260183Sdelphij rollback_data_t *cbp = data; 3816185029Spjd 3817260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3818260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3819260183Sdelphij rollback_destroy_dependent, cbp); 3820260183Sdelphij 3821260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3822168404Spjd } 3823168404Spjd 3824168404Spjd zfs_close(zhp); 3825168404Spjd return (0); 3826168404Spjd} 3827168404Spjd 3828168404Spjd/* 3829168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3830168404Spjd * data changes since then and making it the active dataset. 3831168404Spjd * 3832260183Sdelphij * Any snapshots and bookmarks more recent than the target are 3833260183Sdelphij * destroyed, along with their dependents (i.e. clones). 3834168404Spjd */ 3835168404Spjdint 3836185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3837168404Spjd{ 3838168404Spjd rollback_data_t cb = { 0 }; 3839185029Spjd int err; 3840185029Spjd boolean_t restore_resv = 0; 3841307107Smav uint64_t old_volsize = 0, new_volsize; 3842185029Spjd zfs_prop_t resv_prop; 3843168404Spjd 3844185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3845185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3846168404Spjd 3847168404Spjd /* 3848239774Smm * Destroy all recent snapshots and their dependents. 3849168404Spjd */ 3850185029Spjd cb.cb_force = force; 3851168404Spjd cb.cb_target = snap->zfs_name; 3852168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3853260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 3854260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 3855168404Spjd 3856185029Spjd if (cb.cb_error) 3857185029Spjd return (-1); 3858168404Spjd 3859168404Spjd /* 3860168404Spjd * Now that we have verified that the snapshot is the latest, 3861168404Spjd * rollback to the given snapshot. 3862168404Spjd */ 3863168404Spjd 3864185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3865185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3866185029Spjd return (-1); 3867185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3868185029Spjd restore_resv = 3869185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3870168404Spjd } 3871168404Spjd 3872168404Spjd /* 3873185029Spjd * We rely on zfs_iter_children() to verify that there are no 3874185029Spjd * newer snapshots for the given dataset. Therefore, we can 3875185029Spjd * simply pass the name on to the ioctl() call. There is still 3876185029Spjd * an unlikely race condition where the user has taken a 3877185029Spjd * snapshot since we verified that this was the most recent. 3878168404Spjd */ 3879254587Sdelphij err = lzc_rollback(zhp->zfs_name, NULL, 0); 3880254587Sdelphij if (err != 0) { 3881185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3882185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3883185029Spjd zhp->zfs_name); 3884185029Spjd return (err); 3885185029Spjd } 3886168404Spjd 3887185029Spjd /* 3888185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3889185029Spjd * rollback reservation and the volsize has changed then set 3890185029Spjd * the reservation property to the post-rollback volsize. 3891185029Spjd * Make a new handle since the rollback closed the dataset. 3892185029Spjd */ 3893185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3894185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3895185029Spjd if (restore_resv) { 3896185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3897185029Spjd if (old_volsize != new_volsize) 3898185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3899185029Spjd new_volsize); 3900185029Spjd } 3901185029Spjd zfs_close(zhp); 3902185029Spjd } 3903185029Spjd return (err); 3904168404Spjd} 3905168404Spjd 3906168404Spjd/* 3907168404Spjd * Renames the given dataset. 3908168404Spjd */ 3909168404Spjdint 3910240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3911240870Spjd renameflags_t flags) 3912168404Spjd{ 3913307050Smav int ret = 0; 3914168404Spjd zfs_cmd_t zc = { 0 }; 3915168404Spjd char *delim; 3916168676Spjd prop_changelist_t *cl = NULL; 3917168676Spjd zfs_handle_t *zhrp = NULL; 3918168676Spjd char *parentname = NULL; 3919307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3920226676Spjd char property[ZFS_MAXPROPLEN]; 3921168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3922168404Spjd char errbuf[1024]; 3923168404Spjd 3924168404Spjd /* if we have the same exact name, just return success */ 3925168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3926168404Spjd return (0); 3927168404Spjd 3928168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3929168404Spjd "cannot rename to '%s'"), target); 3930168404Spjd 3931240870Spjd if (source != NULL) { 3932240870Spjd /* 3933240870Spjd * This is recursive snapshots rename, put snapshot name 3934240870Spjd * (that might not exist) into zfs_name. 3935240870Spjd */ 3936240870Spjd assert(flags.recurse); 3937240870Spjd 3938240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3939240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3940240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3941240870Spjd } 3942240870Spjd 3943168404Spjd /* 3944168404Spjd * Make sure the target name is valid 3945168404Spjd */ 3946168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3947168404Spjd if ((strchr(target, '@') == NULL) || 3948168404Spjd *target == '@') { 3949168404Spjd /* 3950168404Spjd * Snapshot target name is abbreviated, 3951168404Spjd * reconstruct full dataset name 3952168404Spjd */ 3953168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3954168404Spjd sizeof (parent)); 3955168404Spjd delim = strchr(parent, '@'); 3956168404Spjd if (strchr(target, '@') == NULL) 3957168404Spjd *(++delim) = '\0'; 3958168404Spjd else 3959168404Spjd *delim = '\0'; 3960168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3961168404Spjd target = parent; 3962168404Spjd } else { 3963168404Spjd /* 3964168404Spjd * Make sure we're renaming within the same dataset. 3965168404Spjd */ 3966168404Spjd delim = strchr(target, '@'); 3967168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3968168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3969168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3970168404Spjd "snapshots must be part of same " 3971168404Spjd "dataset")); 3972168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3973168404Spjd errbuf)); 3974168404Spjd } 3975168404Spjd } 3976185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3977168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3978168404Spjd } else { 3979226705Spjd if (flags.recurse) { 3980168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3981168676Spjd "recursive rename must be a snapshot")); 3982168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3983168676Spjd } 3984168676Spjd 3985185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3986168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3987168404Spjd 3988168404Spjd /* validate parents */ 3989219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3990168404Spjd return (-1); 3991168404Spjd 3992168404Spjd /* make sure we're in the same pool */ 3993168404Spjd verify((delim = strchr(target, '/')) != NULL); 3994168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3995168404Spjd zhp->zfs_name[delim - target] != '/') { 3996168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3997168404Spjd "datasets must be within same pool")); 3998168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3999168404Spjd } 4000168404Spjd 4001168404Spjd /* new name cannot be a child of the current dataset name */ 4002219089Spjd if (is_descendant(zhp->zfs_name, target)) { 4003168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4004219089Spjd "New dataset name cannot be a descendant of " 4005168404Spjd "current dataset name")); 4006168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4007168404Spjd } 4008168404Spjd } 4009168404Spjd 4010168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4011168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 4012168404Spjd 4013168404Spjd if (getzoneid() == GLOBAL_ZONEID && 4014168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 4015168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4016168404Spjd "dataset is used in a non-global zone")); 4017168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 4018168404Spjd } 4019168404Spjd 4020226705Spjd /* 4021226705Spjd * Avoid unmounting file systems with mountpoint property set to 4022226705Spjd * 'legacy' or 'none' even if -u option is not given. 4023226705Spjd */ 4024226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 4025226705Spjd !flags.recurse && !flags.nounmount && 4026226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 4027226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 4028226705Spjd (strcmp(property, "legacy") == 0 || 4029226705Spjd strcmp(property, "none") == 0)) { 4030226705Spjd flags.nounmount = B_TRUE; 4031226705Spjd } 4032226705Spjd if (flags.recurse) { 4033226705Spjd 4034185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 4035185029Spjd if (parentname == NULL) { 4036185029Spjd ret = -1; 4037185029Spjd goto error; 4038185029Spjd } 4039168676Spjd delim = strchr(parentname, '@'); 4040168676Spjd *delim = '\0'; 4041185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 4042168676Spjd if (zhrp == NULL) { 4043185029Spjd ret = -1; 4044185029Spjd goto error; 4045168676Spjd } 4046268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 4047226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 4048235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 4049235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 4050168676Spjd return (-1); 4051226676Spjd } 4052168676Spjd 4053168676Spjd if (changelist_haszonedchild(cl)) { 4054168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4055168676Spjd "child dataset with inherited mountpoint is used " 4056168676Spjd "in a non-global zone")); 4057168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 4058307107Smav ret = -1; 4059168676Spjd goto error; 4060168676Spjd } 4061168676Spjd 4062168676Spjd if ((ret = changelist_prefix(cl)) != 0) 4063168676Spjd goto error; 4064168404Spjd } 4065168404Spjd 4066168404Spjd if (ZFS_IS_VOLUME(zhp)) 4067168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 4068168404Spjd else 4069168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4070168404Spjd 4071168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4072168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 4073168404Spjd 4074226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 4075226705Spjd if (flags.nounmount) 4076226676Spjd zc.zc_cookie |= 2; 4077168676Spjd 4078185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 4079168676Spjd /* 4080168676Spjd * if it was recursive, the one that actually failed will 4081168676Spjd * be in zc.zc_name 4082168676Spjd */ 4083168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4084185029Spjd "cannot rename '%s'"), zc.zc_name); 4085168404Spjd 4086226705Spjd if (flags.recurse && errno == EEXIST) { 4087168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4088168676Spjd "a child dataset already has a snapshot " 4089168676Spjd "with the new name")); 4090185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4091168676Spjd } else { 4092168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 4093168676Spjd } 4094168676Spjd 4095168404Spjd /* 4096168404Spjd * On failure, we still want to remount any filesystems that 4097168404Spjd * were previously mounted, so we don't alter the system state. 4098168404Spjd */ 4099268469Sdelphij if (cl != NULL) 4100168676Spjd (void) changelist_postfix(cl); 4101168404Spjd } else { 4102268469Sdelphij if (cl != NULL) { 4103168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 4104168676Spjd ret = changelist_postfix(cl); 4105168676Spjd } 4106168404Spjd } 4107168404Spjd 4108168404Spjderror: 4109268469Sdelphij if (parentname != NULL) { 4110168676Spjd free(parentname); 4111168676Spjd } 4112268469Sdelphij if (zhrp != NULL) { 4113168676Spjd zfs_close(zhrp); 4114168676Spjd } 4115268469Sdelphij if (cl != NULL) { 4116168676Spjd changelist_free(cl); 4117168676Spjd } 4118168404Spjd return (ret); 4119168404Spjd} 4120168404Spjd 4121219089Spjdnvlist_t * 4122219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4123168404Spjd{ 4124219089Spjd return (zhp->zfs_user_props); 4125168676Spjd} 4126168676Spjd 4127168404Spjdnvlist_t * 4128219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4129168404Spjd{ 4130219089Spjd if (zhp->zfs_recvd_props == NULL) 4131219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4132219089Spjd return (NULL); 4133219089Spjd return (zhp->zfs_recvd_props); 4134168404Spjd} 4135168404Spjd 4136168404Spjd/* 4137168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4138168404Spjd * display, and their maximum widths. This does two main things: 4139168404Spjd * 4140168404Spjd * - If this is a list of all properties, then expand the list to include 4141168404Spjd * all native properties, and set a flag so that for each dataset we look 4142168404Spjd * for new unique user properties and add them to the list. 4143168404Spjd * 4144168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4145219089Spjd * so that we can size the column appropriately. If the user has 4146219089Spjd * requested received property values, we also need to compute the width 4147219089Spjd * of the RECEIVED column. 4148168404Spjd */ 4149168404Spjdint 4150259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4151259850Sdelphij boolean_t literal) 4152168404Spjd{ 4153168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4154185029Spjd zprop_list_t *entry; 4155185029Spjd zprop_list_t **last, **start; 4156168404Spjd nvlist_t *userprops, *propval; 4157168404Spjd nvpair_t *elem; 4158168404Spjd char *strval; 4159168404Spjd char buf[ZFS_MAXPROPLEN]; 4160168404Spjd 4161185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4162168404Spjd return (-1); 4163168404Spjd 4164168404Spjd userprops = zfs_get_user_props(zhp); 4165168404Spjd 4166168404Spjd entry = *plp; 4167168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4168168404Spjd /* 4169168404Spjd * Go through and add any user properties as necessary. We 4170168404Spjd * start by incrementing our list pointer to the first 4171168404Spjd * non-native property. 4172168404Spjd */ 4173168404Spjd start = plp; 4174168404Spjd while (*start != NULL) { 4175185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4176168404Spjd break; 4177168404Spjd start = &(*start)->pl_next; 4178168404Spjd } 4179168404Spjd 4180168404Spjd elem = NULL; 4181168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4182168404Spjd /* 4183168404Spjd * See if we've already found this property in our list. 4184168404Spjd */ 4185168404Spjd for (last = start; *last != NULL; 4186168404Spjd last = &(*last)->pl_next) { 4187168404Spjd if (strcmp((*last)->pl_user_prop, 4188168404Spjd nvpair_name(elem)) == 0) 4189168404Spjd break; 4190168404Spjd } 4191168404Spjd 4192168404Spjd if (*last == NULL) { 4193168404Spjd if ((entry = zfs_alloc(hdl, 4194185029Spjd sizeof (zprop_list_t))) == NULL || 4195168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4196168404Spjd nvpair_name(elem)))) == NULL) { 4197168404Spjd free(entry); 4198168404Spjd return (-1); 4199168404Spjd } 4200168404Spjd 4201185029Spjd entry->pl_prop = ZPROP_INVAL; 4202168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4203168404Spjd entry->pl_all = B_TRUE; 4204168404Spjd *last = entry; 4205168404Spjd } 4206168404Spjd } 4207168404Spjd } 4208168404Spjd 4209168404Spjd /* 4210168404Spjd * Now go through and check the width of any non-fixed columns 4211168404Spjd */ 4212168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4213259850Sdelphij if (entry->pl_fixed && !literal) 4214168404Spjd continue; 4215168404Spjd 4216185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4217168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4218259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4219168404Spjd if (strlen(buf) > entry->pl_width) 4220168404Spjd entry->pl_width = strlen(buf); 4221168404Spjd } 4222219089Spjd if (received && zfs_prop_get_recvd(zhp, 4223219089Spjd zfs_prop_to_name(entry->pl_prop), 4224259850Sdelphij buf, sizeof (buf), literal) == 0) 4225219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4226219089Spjd entry->pl_recvd_width = strlen(buf); 4227219089Spjd } else { 4228219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4229219089Spjd &propval) == 0) { 4230219089Spjd verify(nvlist_lookup_string(propval, 4231219089Spjd ZPROP_VALUE, &strval) == 0); 4232219089Spjd if (strlen(strval) > entry->pl_width) 4233219089Spjd entry->pl_width = strlen(strval); 4234219089Spjd } 4235219089Spjd if (received && zfs_prop_get_recvd(zhp, 4236219089Spjd entry->pl_user_prop, 4237259850Sdelphij buf, sizeof (buf), literal) == 0) 4238219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4239219089Spjd entry->pl_recvd_width = strlen(buf); 4240168404Spjd } 4241168404Spjd } 4242168404Spjd 4243168404Spjd return (0); 4244168404Spjd} 4245168404Spjd 4246185029Spjdint 4247185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4248209962Smm char *resource, void *export, void *sharetab, 4249209962Smm int sharemax, zfs_share_op_t operation) 4250185029Spjd{ 4251185029Spjd zfs_cmd_t zc = { 0 }; 4252185029Spjd int error; 4253185029Spjd 4254185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4255185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4256209962Smm if (resource) 4257209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4258185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4259185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4260185029Spjd zc.zc_share.z_sharetype = operation; 4261185029Spjd zc.zc_share.z_sharemax = sharemax; 4262185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4263185029Spjd return (error); 4264185029Spjd} 4265185029Spjd 4266205198Sdelphijvoid 4267205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4268205198Sdelphij{ 4269205198Sdelphij nvpair_t *curr; 4270205198Sdelphij 4271205198Sdelphij /* 4272205198Sdelphij * Keep a reference to the props-table against which we prune the 4273205198Sdelphij * properties. 4274205198Sdelphij */ 4275205198Sdelphij zhp->zfs_props_table = props; 4276205198Sdelphij 4277205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4278205198Sdelphij 4279205198Sdelphij while (curr) { 4280205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4281205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4282205198Sdelphij 4283206199Sdelphij /* 4284219089Spjd * User properties will result in ZPROP_INVAL, and since we 4285219089Spjd * only know how to prune standard ZFS properties, we always 4286219089Spjd * leave these in the list. This can also happen if we 4287219089Spjd * encounter an unknown DSL property (when running older 4288219089Spjd * software, for example). 4289206199Sdelphij */ 4290206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4291205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4292205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4293205198Sdelphij curr = next; 4294205198Sdelphij } 4295205198Sdelphij} 4296205198Sdelphij 4297277300Ssmh#ifdef illumos 4298209962Smmstatic int 4299209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4300209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4301209962Smm{ 4302209962Smm zfs_cmd_t zc = { 0 }; 4303209962Smm nvlist_t *nvlist = NULL; 4304209962Smm int error; 4305209962Smm 4306209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4307209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4308209962Smm zc.zc_cookie = (uint64_t)cmd; 4309209962Smm 4310209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4311209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4312209962Smm (void) no_memory(hdl); 4313289497Smav return (0); 4314209962Smm } 4315209962Smm } 4316209962Smm 4317209962Smm switch (cmd) { 4318209962Smm case ZFS_SMB_ACL_ADD: 4319209962Smm case ZFS_SMB_ACL_REMOVE: 4320209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4321209962Smm break; 4322209962Smm case ZFS_SMB_ACL_RENAME: 4323209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4324209962Smm resource1) != 0) { 4325209962Smm (void) no_memory(hdl); 4326209962Smm return (-1); 4327209962Smm } 4328209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4329209962Smm resource2) != 0) { 4330209962Smm (void) no_memory(hdl); 4331209962Smm return (-1); 4332209962Smm } 4333209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4334209962Smm nvlist_free(nvlist); 4335209962Smm return (-1); 4336209962Smm } 4337209962Smm break; 4338209962Smm case ZFS_SMB_ACL_PURGE: 4339209962Smm break; 4340209962Smm default: 4341209962Smm return (-1); 4342209962Smm } 4343209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4344296528Smav nvlist_free(nvlist); 4345209962Smm return (error); 4346209962Smm} 4347209962Smm 4348209962Smmint 4349209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4350209962Smm char *path, char *resource) 4351209962Smm{ 4352209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4353209962Smm resource, NULL)); 4354209962Smm} 4355209962Smm 4356209962Smmint 4357209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4358209962Smm char *path, char *resource) 4359209962Smm{ 4360209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4361209962Smm resource, NULL)); 4362209962Smm} 4363209962Smm 4364209962Smmint 4365209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4366209962Smm{ 4367209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4368209962Smm NULL, NULL)); 4369209962Smm} 4370209962Smm 4371209962Smmint 4372209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4373209962Smm char *oldname, char *newname) 4374209962Smm{ 4375209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4376209962Smm oldname, newname)); 4377209962Smm} 4378277300Ssmh#endif /* illumos */ 4379209962Smm 4380209962Smmint 4381209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4382209962Smm zfs_userspace_cb_t func, void *arg) 4383209962Smm{ 4384209962Smm zfs_cmd_t zc = { 0 }; 4385209962Smm zfs_useracct_t buf[100]; 4386240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4387240415Smm int ret; 4388209962Smm 4389228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4390209962Smm 4391209962Smm zc.zc_objset_type = type; 4392209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4393209962Smm 4394240415Smm for (;;) { 4395209962Smm zfs_useracct_t *zua = buf; 4396209962Smm 4397209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4398240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4399248571Smm char errbuf[1024]; 4400240415Smm 4401240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4402240415Smm dgettext(TEXT_DOMAIN, 4403240415Smm "cannot get used/quota for %s"), zc.zc_name); 4404240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4405240415Smm } 4406240415Smm if (zc.zc_nvlist_dst_size == 0) 4407209962Smm break; 4408209962Smm 4409209962Smm while (zc.zc_nvlist_dst_size > 0) { 4410240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4411240415Smm zua->zu_space)) != 0) 4412240415Smm return (ret); 4413209962Smm zua++; 4414209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4415209962Smm } 4416209962Smm } 4417209962Smm 4418240415Smm return (0); 4419209962Smm} 4420209962Smm 4421248571Smmstruct holdarg { 4422248571Smm nvlist_t *nvl; 4423248571Smm const char *snapname; 4424248571Smm const char *tag; 4425248571Smm boolean_t recursive; 4426252219Sdelphij int error; 4427248571Smm}; 4428248571Smm 4429248571Smmstatic int 4430248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4431248571Smm{ 4432248571Smm struct holdarg *ha = arg; 4433307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 4434248571Smm int rv = 0; 4435248571Smm 4436248571Smm (void) snprintf(name, sizeof (name), 4437248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4438248571Smm 4439251646Sdelphij if (lzc_exists(name)) 4440248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4441248571Smm 4442248571Smm if (ha->recursive) 4443248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4444248571Smm zfs_close(zhp); 4445248571Smm return (rv); 4446248571Smm} 4447248571Smm 4448219089Spjdint 4449219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4450251646Sdelphij boolean_t recursive, int cleanup_fd) 4451219089Spjd{ 4452248571Smm int ret; 4453248571Smm struct holdarg ha; 4454219089Spjd 4455248571Smm ha.nvl = fnvlist_alloc(); 4456248571Smm ha.snapname = snapname; 4457248571Smm ha.tag = tag; 4458248571Smm ha.recursive = recursive; 4459248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4460249357Smm 4461251646Sdelphij if (nvlist_empty(ha.nvl)) { 4462251646Sdelphij char errbuf[1024]; 4463251646Sdelphij 4464249357Smm fnvlist_free(ha.nvl); 4465249357Smm ret = ENOENT; 4466251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4467251646Sdelphij dgettext(TEXT_DOMAIN, 4468251646Sdelphij "cannot hold snapshot '%s@%s'"), 4469251646Sdelphij zhp->zfs_name, snapname); 4470251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4471249357Smm return (ret); 4472249357Smm } 4473249357Smm 4474251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4475248571Smm fnvlist_free(ha.nvl); 4476219089Spjd 4477251646Sdelphij return (ret); 4478251646Sdelphij} 4479251646Sdelphij 4480251646Sdelphijint 4481251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4482251646Sdelphij{ 4483251646Sdelphij int ret; 4484251646Sdelphij nvlist_t *errors; 4485251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4486251646Sdelphij char errbuf[1024]; 4487251646Sdelphij nvpair_t *elem; 4488251646Sdelphij 4489251646Sdelphij errors = NULL; 4490251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4491251646Sdelphij 4492251646Sdelphij if (ret == 0) { 4493251646Sdelphij /* There may be errors even in the success case. */ 4494251646Sdelphij fnvlist_free(errors); 4495248571Smm return (0); 4496251646Sdelphij } 4497219089Spjd 4498251646Sdelphij if (nvlist_empty(errors)) { 4499248571Smm /* no hold-specific errors */ 4500248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4501248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4502248571Smm switch (ret) { 4503248571Smm case ENOTSUP: 4504248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4505248571Smm "pool must be upgraded")); 4506248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4507248571Smm break; 4508248571Smm case EINVAL: 4509248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4510248571Smm break; 4511248571Smm default: 4512248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4513248571Smm } 4514248571Smm } 4515219089Spjd 4516248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4517248571Smm elem != NULL; 4518248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4519248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4520248571Smm dgettext(TEXT_DOMAIN, 4521248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4522248571Smm switch (fnvpair_value_int32(elem)) { 4523219089Spjd case E2BIG: 4524219089Spjd /* 4525219089Spjd * Temporary tags wind up having the ds object id 4526219089Spjd * prepended. So even if we passed the length check 4527219089Spjd * above, it's still possible for the tag to wind 4528219089Spjd * up being slightly too long. 4529219089Spjd */ 4530248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4531248571Smm break; 4532219089Spjd case EINVAL: 4533248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4534248571Smm break; 4535219089Spjd case EEXIST: 4536248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4537248571Smm break; 4538219089Spjd default: 4539248571Smm (void) zfs_standard_error(hdl, 4540248571Smm fnvpair_value_int32(elem), errbuf); 4541219089Spjd } 4542219089Spjd } 4543219089Spjd 4544248571Smm fnvlist_free(errors); 4545248571Smm return (ret); 4546219089Spjd} 4547219089Spjd 4548248571Smmstatic int 4549248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4550248571Smm{ 4551248571Smm struct holdarg *ha = arg; 4552307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 4553248571Smm int rv = 0; 4554252219Sdelphij nvlist_t *existing_holds; 4555248571Smm 4556248571Smm (void) snprintf(name, sizeof (name), 4557248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4558248571Smm 4559252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4560252219Sdelphij ha->error = ENOENT; 4561252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4562252219Sdelphij ha->error = ESRCH; 4563252219Sdelphij } else { 4564252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4565252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4566252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4567252219Sdelphij fnvlist_free(torelease); 4568248571Smm } 4569248571Smm 4570248571Smm if (ha->recursive) 4571248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4572248571Smm zfs_close(zhp); 4573248571Smm return (rv); 4574248571Smm} 4575248571Smm 4576219089Spjdint 4577219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4578219089Spjd boolean_t recursive) 4579219089Spjd{ 4580248571Smm int ret; 4581248571Smm struct holdarg ha; 4582251646Sdelphij nvlist_t *errors = NULL; 4583248571Smm nvpair_t *elem; 4584219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4585249357Smm char errbuf[1024]; 4586219089Spjd 4587248571Smm ha.nvl = fnvlist_alloc(); 4588248571Smm ha.snapname = snapname; 4589248571Smm ha.tag = tag; 4590248571Smm ha.recursive = recursive; 4591252219Sdelphij ha.error = 0; 4592248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4593249357Smm 4594251646Sdelphij if (nvlist_empty(ha.nvl)) { 4595249357Smm fnvlist_free(ha.nvl); 4596252219Sdelphij ret = ha.error; 4597249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4598249357Smm dgettext(TEXT_DOMAIN, 4599249357Smm "cannot release hold from snapshot '%s@%s'"), 4600249357Smm zhp->zfs_name, snapname); 4601252219Sdelphij if (ret == ESRCH) { 4602252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4603252219Sdelphij } else { 4604252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4605252219Sdelphij } 4606249357Smm return (ret); 4607249357Smm } 4608249357Smm 4609248571Smm ret = lzc_release(ha.nvl, &errors); 4610248571Smm fnvlist_free(ha.nvl); 4611219089Spjd 4612251646Sdelphij if (ret == 0) { 4613251646Sdelphij /* There may be errors even in the success case. */ 4614251646Sdelphij fnvlist_free(errors); 4615248571Smm return (0); 4616251646Sdelphij } 4617219089Spjd 4618251646Sdelphij if (nvlist_empty(errors)) { 4619248571Smm /* no hold-specific errors */ 4620219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4621248571Smm "cannot release")); 4622219089Spjd switch (errno) { 4623219089Spjd case ENOTSUP: 4624219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4625219089Spjd "pool must be upgraded")); 4626248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4627248571Smm break; 4628248571Smm default: 4629248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4630248571Smm } 4631248571Smm } 4632248571Smm 4633248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4634248571Smm elem != NULL; 4635248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4636248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4637248571Smm dgettext(TEXT_DOMAIN, 4638248571Smm "cannot release hold from snapshot '%s'"), 4639248571Smm nvpair_name(elem)); 4640248571Smm switch (fnvpair_value_int32(elem)) { 4641248571Smm case ESRCH: 4642248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4643248571Smm break; 4644219089Spjd case EINVAL: 4645248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4646248571Smm break; 4647219089Spjd default: 4648248571Smm (void) zfs_standard_error_fmt(hdl, 4649248571Smm fnvpair_value_int32(elem), errbuf); 4650219089Spjd } 4651219089Spjd } 4652219089Spjd 4653248571Smm fnvlist_free(errors); 4654248571Smm return (ret); 4655219089Spjd} 4656219089Spjd 4657219089Spjdint 4658219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4659219089Spjd{ 4660219089Spjd zfs_cmd_t zc = { 0 }; 4661219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4662219089Spjd int nvsz = 2048; 4663219089Spjd void *nvbuf; 4664219089Spjd int err = 0; 4665248571Smm char errbuf[1024]; 4666219089Spjd 4667219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4668219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4669219089Spjd 4670219089Spjdtryagain: 4671219089Spjd 4672219089Spjd nvbuf = malloc(nvsz); 4673219089Spjd if (nvbuf == NULL) { 4674219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4675219089Spjd goto out; 4676219089Spjd } 4677219089Spjd 4678219089Spjd zc.zc_nvlist_dst_size = nvsz; 4679219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4680219089Spjd 4681307108Smav (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4682219089Spjd 4683230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4684219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4685219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4686219089Spjd zc.zc_name); 4687219089Spjd switch (errno) { 4688219089Spjd case ENOMEM: 4689219089Spjd free(nvbuf); 4690219089Spjd nvsz = zc.zc_nvlist_dst_size; 4691219089Spjd goto tryagain; 4692219089Spjd 4693219089Spjd case ENOTSUP: 4694219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4695219089Spjd "pool must be upgraded")); 4696219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4697219089Spjd break; 4698219089Spjd case EINVAL: 4699219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4700219089Spjd break; 4701219089Spjd case ENOENT: 4702219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4703219089Spjd break; 4704219089Spjd default: 4705219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4706219089Spjd break; 4707219089Spjd } 4708219089Spjd } else { 4709219089Spjd /* success */ 4710219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4711219089Spjd if (rc) { 4712219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4713219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4714219089Spjd zc.zc_name); 4715219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4716219089Spjd } 4717219089Spjd } 4718219089Spjd 4719219089Spjd free(nvbuf); 4720219089Spjdout: 4721219089Spjd return (err); 4722219089Spjd} 4723219089Spjd 4724219089Spjdint 4725219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4726219089Spjd{ 4727219089Spjd zfs_cmd_t zc = { 0 }; 4728219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4729219089Spjd char *nvbuf; 4730248571Smm char errbuf[1024]; 4731219089Spjd size_t nvsz; 4732219089Spjd int err; 4733219089Spjd 4734219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4735219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4736219089Spjd 4737219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4738219089Spjd assert(err == 0); 4739219089Spjd 4740219089Spjd nvbuf = malloc(nvsz); 4741219089Spjd 4742219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4743219089Spjd assert(err == 0); 4744219089Spjd 4745219089Spjd zc.zc_nvlist_src_size = nvsz; 4746219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4747219089Spjd zc.zc_perm_action = un; 4748219089Spjd 4749219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4750219089Spjd 4751219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4752219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4753219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4754219089Spjd zc.zc_name); 4755219089Spjd switch (errno) { 4756219089Spjd case ENOTSUP: 4757219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4758219089Spjd "pool must be upgraded")); 4759219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4760219089Spjd break; 4761219089Spjd case EINVAL: 4762219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4763219089Spjd break; 4764219089Spjd case ENOENT: 4765219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4766219089Spjd break; 4767219089Spjd default: 4768219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4769219089Spjd break; 4770219089Spjd } 4771219089Spjd } 4772219089Spjd 4773219089Spjd free(nvbuf); 4774219089Spjd 4775219089Spjd return (err); 4776219089Spjd} 4777219089Spjd 4778219089Spjdint 4779219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4780219089Spjd{ 4781248571Smm int err; 4782248571Smm char errbuf[1024]; 4783219089Spjd 4784248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4785219089Spjd 4786248571Smm if (err != 0) { 4787248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4788219089Spjd 4789219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4790219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4791248571Smm zhp->zfs_name); 4792248571Smm switch (err) { 4793219089Spjd case ENOTSUP: 4794219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4795219089Spjd "pool must be upgraded")); 4796219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4797219089Spjd break; 4798219089Spjd case EINVAL: 4799219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4800219089Spjd break; 4801219089Spjd case ENOENT: 4802219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4803219089Spjd break; 4804219089Spjd default: 4805219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4806219089Spjd break; 4807219089Spjd } 4808219089Spjd } 4809219089Spjd 4810219089Spjd return (err); 4811219089Spjd} 4812219089Spjd 4813251629Sdelphij/* 4814251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4815251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4816251629Sdelphij * suite's shell version in reservation.kshlib. 4817251629Sdelphij */ 4818219089Spjduint64_t 4819219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4820219089Spjd{ 4821219089Spjd uint64_t numdb; 4822219089Spjd uint64_t nblocks, volblocksize; 4823219089Spjd int ncopies; 4824219089Spjd char *strval; 4825219089Spjd 4826219089Spjd if (nvlist_lookup_string(props, 4827219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4828219089Spjd ncopies = atoi(strval); 4829219089Spjd else 4830219089Spjd ncopies = 1; 4831219089Spjd if (nvlist_lookup_uint64(props, 4832219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4833219089Spjd &volblocksize) != 0) 4834219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4835219089Spjd nblocks = volsize/volblocksize; 4836219089Spjd /* start with metadnode L0-L6 */ 4837219089Spjd numdb = 7; 4838219089Spjd /* calculate number of indirects */ 4839219089Spjd while (nblocks > 1) { 4840219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4841219089Spjd nblocks /= DNODES_PER_LEVEL; 4842219089Spjd numdb += nblocks; 4843219089Spjd } 4844219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4845219089Spjd volsize *= ncopies; 4846219089Spjd /* 4847219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4848219089Spjd * compressed, but in practice they compress down to about 4849219089Spjd * 1100 bytes 4850219089Spjd */ 4851219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4852219089Spjd volsize += numdb; 4853219089Spjd return (volsize); 4854219089Spjd} 4855219089Spjd 4856168404Spjd/* 4857168404Spjd * Attach/detach the given filesystem to/from the given jail. 4858168404Spjd */ 4859168404Spjdint 4860168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4861168404Spjd{ 4862168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4863168404Spjd zfs_cmd_t zc = { 0 }; 4864168404Spjd char errbuf[1024]; 4865224525Smm unsigned long cmd; 4866224525Smm int ret; 4867168404Spjd 4868168404Spjd if (attach) { 4869168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4870168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4871168404Spjd } else { 4872168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4873249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4874168404Spjd } 4875168404Spjd 4876168404Spjd switch (zhp->zfs_type) { 4877168404Spjd case ZFS_TYPE_VOLUME: 4878168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4879168404Spjd "volumes can not be jailed")); 4880168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4881168404Spjd case ZFS_TYPE_SNAPSHOT: 4882168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4883168404Spjd "snapshots can not be jailed")); 4884168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4885168404Spjd } 4886168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4887168404Spjd 4888168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4889168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4890168404Spjd zc.zc_jailid = jailid; 4891168404Spjd 4892168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4893168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4894168404Spjd zfs_standard_error(hdl, errno, errbuf); 4895168404Spjd 4896168404Spjd return (ret); 4897168404Spjd} 4898