libzfs_dataset.c revision 307108
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 1618305460Savg * its canmount property. We only use the changelist logic to 1619305460Savg * unmount when setting canmount=off for a mounted filesystem 1620305460Savg * or when setting canmount=on for an unmounted filesystem. 1621305460Savg * For all other changes to canmount property the filesystem 1622305460Savg * remains the same. 1623289497Smav */ 1624297521Savg if (prop != ZFS_PROP_CANMOUNT || 1625297521Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF && 1626305460Savg zfs_is_mounted(zhp, NULL)) || 1627305460Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_ON && 1628305460Savg !zfs_is_mounted(zhp, NULL))) { 1629289497Smav cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); 1630289497Smav if (cls[cl_idx] == NULL) 1631289497Smav goto error; 1632289497Smav } 1633289497Smav 1634289497Smav if (prop == ZFS_PROP_MOUNTPOINT && 1635289497Smav changelist_haszonedchild(cls[cl_idx])) { 1636289497Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1637289497Smav "child dataset with inherited mountpoint is used " 1638289497Smav "in a non-global zone")); 1639289497Smav ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1640289497Smav goto error; 1641289497Smav } 1642289497Smav 1643289497Smav /* We don't support those properties on FreeBSD. */ 1644289497Smav switch (prop) { 1645289497Smav case ZFS_PROP_DEVICES: 1646289497Smav case ZFS_PROP_ISCSIOPTIONS: 1647289497Smav case ZFS_PROP_XATTR: 1648289497Smav case ZFS_PROP_VSCAN: 1649289497Smav case ZFS_PROP_NBMAND: 1650289497Smav case ZFS_PROP_MLSLABEL: 1651289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1652289497Smav "property '%s' not supported on FreeBSD", 1653289497Smav nvpair_name(elem)); 1654289497Smav ret = zfs_error(hdl, EZFS_PERM, errbuf); 1655289497Smav goto error; 1656289497Smav } 1657289497Smav 1658289497Smav if (cls[cl_idx] != NULL && 1659289497Smav (ret = changelist_prefix(cls[cl_idx])) != 0) 1660289497Smav goto error; 1661289497Smav 1662289497Smav cl_idx++; 1663289497Smav } 1664289497Smav assert(cl_idx == nvl_len); 1665289497Smav 1666168404Spjd /* 1667289497Smav * Execute the corresponding ioctl() to set this list of properties. 1668168404Spjd */ 1669168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1670168404Spjd 1671289497Smav if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || 1672289497Smav (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) 1673168404Spjd goto error; 1674168404Spjd 1675185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1676209962Smm 1677168404Spjd if (ret != 0) { 1678289497Smav /* Get the list of unset properties back and report them. */ 1679289497Smav nvlist_t *errorprops = NULL; 1680289497Smav if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) 1681289497Smav goto error; 1682289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1683289497Smav elem != NULL; 1684289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1685289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1686289497Smav zfs_setprop_error(hdl, prop, errno, errbuf); 1687289497Smav } 1688289497Smav nvlist_free(errorprops); 1689289497Smav 1690219089Spjd if (added_resv && errno == ENOSPC) { 1691219089Spjd /* clean up the volsize property we tried to set */ 1692219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1693219089Spjd ZFS_PROP_VOLSIZE); 1694219089Spjd nvlist_free(nvl); 1695289497Smav nvl = NULL; 1696219089Spjd zcmd_free_nvlists(&zc); 1697289497Smav 1698219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1699219089Spjd goto error; 1700219089Spjd if (nvlist_add_uint64(nvl, 1701219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1702219089Spjd old_volsize) != 0) 1703219089Spjd goto error; 1704219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1705219089Spjd goto error; 1706219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1707168404Spjd } 1708168404Spjd } else { 1709289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1710289497Smav if (cls[cl_idx] != NULL) { 1711289497Smav int clp_err = changelist_postfix(cls[cl_idx]); 1712289497Smav if (clp_err != 0) 1713289497Smav ret = clp_err; 1714289497Smav } 1715289497Smav } 1716185029Spjd 1717168404Spjd /* 1718168404Spjd * Refresh the statistics so the new property value 1719168404Spjd * is reflected. 1720168404Spjd */ 1721185029Spjd if (ret == 0) 1722168404Spjd (void) get_stats(zhp); 1723168404Spjd } 1724168404Spjd 1725168404Spjderror: 1726168404Spjd nvlist_free(nvl); 1727168404Spjd zcmd_free_nvlists(&zc); 1728289497Smav if (cls != NULL) { 1729289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1730289497Smav if (cls[cl_idx] != NULL) 1731289497Smav changelist_free(cls[cl_idx]); 1732289497Smav } 1733289497Smav free(cls); 1734289497Smav } 1735168404Spjd return (ret); 1736168404Spjd} 1737168404Spjd 1738168404Spjd/* 1739219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1740219089Spjd * is TRUE, revert to the received value, if any. 1741168404Spjd */ 1742168404Spjdint 1743219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1744168404Spjd{ 1745168404Spjd zfs_cmd_t zc = { 0 }; 1746168404Spjd int ret; 1747168404Spjd prop_changelist_t *cl; 1748168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1749168404Spjd char errbuf[1024]; 1750168404Spjd zfs_prop_t prop; 1751168404Spjd 1752168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1753168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1754168404Spjd 1755219089Spjd zc.zc_cookie = received; 1756185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1757168404Spjd /* 1758168404Spjd * For user properties, the amount of work we have to do is very 1759168404Spjd * small, so just do it here. 1760168404Spjd */ 1761168404Spjd if (!zfs_prop_user(propname)) { 1762168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1763168404Spjd "invalid property")); 1764168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1765168404Spjd } 1766168404Spjd 1767168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1768168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1769168404Spjd 1770185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1771168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1772168404Spjd 1773168404Spjd return (0); 1774168404Spjd } 1775168404Spjd 1776168404Spjd /* 1777168404Spjd * Verify that this property is inheritable. 1778168404Spjd */ 1779168404Spjd if (zfs_prop_readonly(prop)) 1780168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1781168404Spjd 1782219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1783168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1784168404Spjd 1785168404Spjd /* 1786168404Spjd * Check to see if the value applies to this type 1787168404Spjd */ 1788168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1789168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1790168404Spjd 1791168404Spjd /* 1792219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1793168404Spjd */ 1794168404Spjd propname = zfs_prop_to_name(prop); 1795168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1796168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1797168404Spjd 1798168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1799168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1800168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1801168404Spjd "dataset is used in a non-global zone")); 1802168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1803168404Spjd } 1804168404Spjd 1805168404Spjd /* 1806168404Spjd * Determine datasets which will be affected by this change, if any. 1807168404Spjd */ 1808185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1809168404Spjd return (-1); 1810168404Spjd 1811168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1812168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1813168404Spjd "child dataset with inherited mountpoint is used " 1814168404Spjd "in a non-global zone")); 1815168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1816168404Spjd goto error; 1817168404Spjd } 1818168404Spjd 1819168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1820168404Spjd goto error; 1821168404Spjd 1822185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1823168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1824168404Spjd } else { 1825168404Spjd 1826168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1827168404Spjd goto error; 1828168404Spjd 1829168404Spjd /* 1830168404Spjd * Refresh the statistics so the new property is reflected. 1831168404Spjd */ 1832168404Spjd (void) get_stats(zhp); 1833168404Spjd } 1834168404Spjd 1835168404Spjderror: 1836168404Spjd changelist_free(cl); 1837168404Spjd return (ret); 1838168404Spjd} 1839168404Spjd 1840168404Spjd/* 1841168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1842168404Spjd * extract them appropriately. 1843168404Spjd */ 1844168404Spjdstatic uint64_t 1845168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1846168404Spjd{ 1847168404Spjd nvlist_t *nv; 1848168404Spjd uint64_t value; 1849168404Spjd 1850168404Spjd *source = NULL; 1851168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1852168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1853185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1854185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1855168404Spjd } else { 1856205198Sdelphij verify(!zhp->zfs_props_table || 1857205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1858168404Spjd value = zfs_prop_default_numeric(prop); 1859168404Spjd *source = ""; 1860168404Spjd } 1861168404Spjd 1862168404Spjd return (value); 1863168404Spjd} 1864168404Spjd 1865289362Smavstatic const char * 1866168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1867168404Spjd{ 1868168404Spjd nvlist_t *nv; 1869289362Smav const char *value; 1870168404Spjd 1871168404Spjd *source = NULL; 1872168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1873168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1874289362Smav value = fnvlist_lookup_string(nv, ZPROP_VALUE); 1875185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1876168404Spjd } else { 1877205198Sdelphij verify(!zhp->zfs_props_table || 1878205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1879289362Smav value = zfs_prop_default_string(prop); 1880168404Spjd *source = ""; 1881168404Spjd } 1882168404Spjd 1883168404Spjd return (value); 1884168404Spjd} 1885168404Spjd 1886219089Spjdstatic boolean_t 1887219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1888219089Spjd{ 1889219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1890219089Spjd} 1891219089Spjd 1892219089Spjdstatic void 1893219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1894219089Spjd{ 1895219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1896219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1897219089Spjd} 1898219089Spjd 1899219089Spjdstatic void 1900219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1901219089Spjd{ 1902219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1903219089Spjd *cookie = 0; 1904219089Spjd} 1905219089Spjd 1906168404Spjd/* 1907168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1908168404Spjd * zfs_prop_get_int() are built using this interface. 1909168404Spjd * 1910168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1911168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1912168404Spjd * If they differ from the on-disk values, report the current values and mark 1913168404Spjd * the source "temporary". 1914168404Spjd */ 1915168404Spjdstatic int 1916185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1917168404Spjd char **source, uint64_t *val) 1918168404Spjd{ 1919185029Spjd zfs_cmd_t zc = { 0 }; 1920185029Spjd nvlist_t *zplprops = NULL; 1921168404Spjd struct mnttab mnt; 1922168404Spjd char *mntopt_on = NULL; 1923168404Spjd char *mntopt_off = NULL; 1924219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1925168404Spjd 1926168404Spjd *source = NULL; 1927168404Spjd 1928168404Spjd switch (prop) { 1929168404Spjd case ZFS_PROP_ATIME: 1930168404Spjd mntopt_on = MNTOPT_ATIME; 1931168404Spjd mntopt_off = MNTOPT_NOATIME; 1932168404Spjd break; 1933168404Spjd 1934168404Spjd case ZFS_PROP_DEVICES: 1935168404Spjd mntopt_on = MNTOPT_DEVICES; 1936168404Spjd mntopt_off = MNTOPT_NODEVICES; 1937168404Spjd break; 1938168404Spjd 1939168404Spjd case ZFS_PROP_EXEC: 1940168404Spjd mntopt_on = MNTOPT_EXEC; 1941168404Spjd mntopt_off = MNTOPT_NOEXEC; 1942168404Spjd break; 1943168404Spjd 1944168404Spjd case ZFS_PROP_READONLY: 1945168404Spjd mntopt_on = MNTOPT_RO; 1946168404Spjd mntopt_off = MNTOPT_RW; 1947168404Spjd break; 1948168404Spjd 1949168404Spjd case ZFS_PROP_SETUID: 1950168404Spjd mntopt_on = MNTOPT_SETUID; 1951168404Spjd mntopt_off = MNTOPT_NOSETUID; 1952168404Spjd break; 1953168404Spjd 1954168404Spjd case ZFS_PROP_XATTR: 1955168404Spjd mntopt_on = MNTOPT_XATTR; 1956168404Spjd mntopt_off = MNTOPT_NOXATTR; 1957168404Spjd break; 1958185029Spjd 1959185029Spjd case ZFS_PROP_NBMAND: 1960185029Spjd mntopt_on = MNTOPT_NBMAND; 1961185029Spjd mntopt_off = MNTOPT_NONBMAND; 1962185029Spjd break; 1963307050Smav 1964307050Smav default: 1965307050Smav break; 1966168404Spjd } 1967168404Spjd 1968168404Spjd /* 1969168404Spjd * Because looking up the mount options is potentially expensive 1970168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1971168404Spjd * we're looking up a property which requires its presence. 1972168404Spjd */ 1973168404Spjd if (!zhp->zfs_mntcheck && 1974168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1975209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1976209962Smm struct mnttab entry; 1977168404Spjd 1978209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1979209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1980168404Spjd entry.mnt_mntopts); 1981168404Spjd if (zhp->zfs_mntopts == NULL) 1982168404Spjd return (-1); 1983168404Spjd } 1984168404Spjd 1985168404Spjd zhp->zfs_mntcheck = B_TRUE; 1986168404Spjd } 1987168404Spjd 1988168404Spjd if (zhp->zfs_mntopts == NULL) 1989168404Spjd mnt.mnt_mntopts = ""; 1990168404Spjd else 1991168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1992168404Spjd 1993168404Spjd switch (prop) { 1994168404Spjd case ZFS_PROP_ATIME: 1995168404Spjd case ZFS_PROP_DEVICES: 1996168404Spjd case ZFS_PROP_EXEC: 1997168404Spjd case ZFS_PROP_READONLY: 1998168404Spjd case ZFS_PROP_SETUID: 1999168404Spjd case ZFS_PROP_XATTR: 2000185029Spjd case ZFS_PROP_NBMAND: 2001168404Spjd *val = getprop_uint64(zhp, prop, source); 2002168404Spjd 2003219089Spjd if (received) 2004219089Spjd break; 2005219089Spjd 2006168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 2007168404Spjd *val = B_TRUE; 2008168404Spjd if (src) 2009185029Spjd *src = ZPROP_SRC_TEMPORARY; 2010168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 2011168404Spjd *val = B_FALSE; 2012168404Spjd if (src) 2013185029Spjd *src = ZPROP_SRC_TEMPORARY; 2014168404Spjd } 2015168404Spjd break; 2016168404Spjd 2017168404Spjd case ZFS_PROP_CANMOUNT: 2018219089Spjd case ZFS_PROP_VOLSIZE: 2019168404Spjd case ZFS_PROP_QUOTA: 2020185029Spjd case ZFS_PROP_REFQUOTA: 2021168404Spjd case ZFS_PROP_RESERVATION: 2022185029Spjd case ZFS_PROP_REFRESERVATION: 2023264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2024264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2025264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2026264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2027168404Spjd *val = getprop_uint64(zhp, prop, source); 2028219089Spjd 2029219089Spjd if (*source == NULL) { 2030219089Spjd /* not default, must be local */ 2031168404Spjd *source = zhp->zfs_name; 2032219089Spjd } 2033168404Spjd break; 2034168404Spjd 2035168404Spjd case ZFS_PROP_MOUNTED: 2036168404Spjd *val = (zhp->zfs_mntopts != NULL); 2037168404Spjd break; 2038168404Spjd 2039168404Spjd case ZFS_PROP_NUMCLONES: 2040168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 2041168404Spjd break; 2042168404Spjd 2043185029Spjd case ZFS_PROP_VERSION: 2044185029Spjd case ZFS_PROP_NORMALIZE: 2045185029Spjd case ZFS_PROP_UTF8ONLY: 2046185029Spjd case ZFS_PROP_CASE: 2047185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 2048185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 2049185029Spjd return (-1); 2050185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2051185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 2052185029Spjd zcmd_free_nvlists(&zc); 2053219089Spjd return (-1); 2054185029Spjd } 2055185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 2056185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 2057185029Spjd val) != 0) { 2058185029Spjd zcmd_free_nvlists(&zc); 2059219089Spjd return (-1); 2060185029Spjd } 2061296528Smav nvlist_free(zplprops); 2062185029Spjd zcmd_free_nvlists(&zc); 2063185029Spjd break; 2064185029Spjd 2065253819Sdelphij case ZFS_PROP_INCONSISTENT: 2066253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 2067253819Sdelphij break; 2068253819Sdelphij 2069168404Spjd default: 2070185029Spjd switch (zfs_prop_get_type(prop)) { 2071185029Spjd case PROP_TYPE_NUMBER: 2072185029Spjd case PROP_TYPE_INDEX: 2073185029Spjd *val = getprop_uint64(zhp, prop, source); 2074185029Spjd /* 2075209962Smm * If we tried to use a default value for a 2076185029Spjd * readonly property, it means that it was not 2077219089Spjd * present. 2078185029Spjd */ 2079185029Spjd if (zfs_prop_readonly(prop) && 2080219089Spjd *source != NULL && (*source)[0] == '\0') { 2081219089Spjd *source = NULL; 2082185029Spjd } 2083185029Spjd break; 2084185029Spjd 2085185029Spjd case PROP_TYPE_STRING: 2086185029Spjd default: 2087185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2088185029Spjd "cannot get non-numeric property")); 2089185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2090185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2091185029Spjd } 2092168404Spjd } 2093168404Spjd 2094168404Spjd return (0); 2095168404Spjd} 2096168404Spjd 2097168404Spjd/* 2098168404Spjd * Calculate the source type, given the raw source string. 2099168404Spjd */ 2100168404Spjdstatic void 2101185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2102168404Spjd char *statbuf, size_t statlen) 2103168404Spjd{ 2104185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2105168404Spjd return; 2106168404Spjd 2107168404Spjd if (source == NULL) { 2108185029Spjd *srctype = ZPROP_SRC_NONE; 2109168404Spjd } else if (source[0] == '\0') { 2110185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2111219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2112219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2113168404Spjd } else { 2114168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2115185029Spjd *srctype = ZPROP_SRC_LOCAL; 2116168404Spjd } else { 2117168404Spjd (void) strlcpy(statbuf, source, statlen); 2118185029Spjd *srctype = ZPROP_SRC_INHERITED; 2119168404Spjd } 2120168404Spjd } 2121168404Spjd 2122168404Spjd} 2123168404Spjd 2124219089Spjdint 2125219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2126219089Spjd size_t proplen, boolean_t literal) 2127219089Spjd{ 2128219089Spjd zfs_prop_t prop; 2129219089Spjd int err = 0; 2130219089Spjd 2131219089Spjd if (zhp->zfs_recvd_props == NULL) 2132219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2133219089Spjd return (-1); 2134219089Spjd 2135219089Spjd prop = zfs_name_to_prop(propname); 2136219089Spjd 2137219089Spjd if (prop != ZPROP_INVAL) { 2138219089Spjd uint64_t cookie; 2139219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2140219089Spjd return (-1); 2141219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2142219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2143219089Spjd NULL, NULL, 0, literal); 2144219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2145219089Spjd } else { 2146219089Spjd nvlist_t *propval; 2147219089Spjd char *recvdval; 2148219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2149219089Spjd propname, &propval) != 0) 2150219089Spjd return (-1); 2151219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2152219089Spjd &recvdval) == 0); 2153219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2154219089Spjd } 2155219089Spjd 2156219089Spjd return (err == 0 ? 0 : -1); 2157219089Spjd} 2158219089Spjd 2159228103Smmstatic int 2160228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2161228103Smm{ 2162228103Smm nvlist_t *value; 2163228103Smm nvpair_t *pair; 2164228103Smm 2165228103Smm value = zfs_get_clones_nvl(zhp); 2166228103Smm if (value == NULL) 2167228103Smm return (-1); 2168228103Smm 2169228103Smm propbuf[0] = '\0'; 2170228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2171228103Smm pair = nvlist_next_nvpair(value, pair)) { 2172228103Smm if (propbuf[0] != '\0') 2173228103Smm (void) strlcat(propbuf, ",", proplen); 2174228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2175228103Smm } 2176228103Smm 2177228103Smm return (0); 2178228103Smm} 2179228103Smm 2180228103Smmstruct get_clones_arg { 2181228103Smm uint64_t numclones; 2182228103Smm nvlist_t *value; 2183228103Smm const char *origin; 2184307108Smav char buf[ZFS_MAX_DATASET_NAME_LEN]; 2185228103Smm}; 2186228103Smm 2187228103Smmint 2188228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2189228103Smm{ 2190228103Smm struct get_clones_arg *gca = arg; 2191228103Smm 2192228103Smm if (gca->numclones == 0) { 2193228103Smm zfs_close(zhp); 2194228103Smm return (0); 2195228103Smm } 2196228103Smm 2197228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2198228103Smm NULL, NULL, 0, B_TRUE) != 0) 2199228103Smm goto out; 2200228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2201248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2202228103Smm gca->numclones--; 2203228103Smm } 2204228103Smm 2205228103Smmout: 2206228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2207228103Smm zfs_close(zhp); 2208228103Smm return (0); 2209228103Smm} 2210228103Smm 2211228103Smmnvlist_t * 2212228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2213228103Smm{ 2214228103Smm nvlist_t *nv, *value; 2215228103Smm 2216228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2217228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2218228103Smm struct get_clones_arg gca; 2219228103Smm 2220228103Smm /* 2221228103Smm * if this is a snapshot, then the kernel wasn't able 2222228103Smm * to get the clones. Do it by slowly iterating. 2223228103Smm */ 2224228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2225228103Smm return (NULL); 2226228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2227228103Smm return (NULL); 2228228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2229228103Smm nvlist_free(nv); 2230228103Smm return (NULL); 2231228103Smm } 2232228103Smm 2233228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2234228103Smm gca.value = value; 2235228103Smm gca.origin = zhp->zfs_name; 2236228103Smm 2237228103Smm if (gca.numclones != 0) { 2238228103Smm zfs_handle_t *root; 2239307108Smav char pool[ZFS_MAX_DATASET_NAME_LEN]; 2240228103Smm char *cp = pool; 2241228103Smm 2242228103Smm /* get the pool name */ 2243228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2244228103Smm (void) strsep(&cp, "/@"); 2245228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2246228103Smm ZFS_TYPE_FILESYSTEM); 2247228103Smm 2248228103Smm (void) get_clones_cb(root, &gca); 2249228103Smm } 2250228103Smm 2251228103Smm if (gca.numclones != 0 || 2252228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2253228103Smm nvlist_add_nvlist(zhp->zfs_props, 2254228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2255228103Smm nvlist_free(nv); 2256228103Smm nvlist_free(value); 2257228103Smm return (NULL); 2258228103Smm } 2259228103Smm nvlist_free(nv); 2260228103Smm nvlist_free(value); 2261228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2262228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2263228103Smm } 2264228103Smm 2265228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2266228103Smm 2267228103Smm return (value); 2268228103Smm} 2269228103Smm 2270168404Spjd/* 2271168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2272168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2273168404Spjd * human-readable form. 2274168404Spjd * 2275168404Spjd * Returns 0 on success, or -1 on error. 2276168404Spjd */ 2277168404Spjdint 2278168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2279185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2280168404Spjd{ 2281168404Spjd char *source = NULL; 2282168404Spjd uint64_t val; 2283289362Smav const char *str; 2284168404Spjd const char *strval; 2285219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2286168404Spjd 2287168404Spjd /* 2288168404Spjd * Check to see if this property applies to our object 2289168404Spjd */ 2290168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2291168404Spjd return (-1); 2292168404Spjd 2293219089Spjd if (received && zfs_prop_readonly(prop)) 2294219089Spjd return (-1); 2295219089Spjd 2296168404Spjd if (src) 2297185029Spjd *src = ZPROP_SRC_NONE; 2298168404Spjd 2299168404Spjd switch (prop) { 2300168404Spjd case ZFS_PROP_CREATION: 2301168404Spjd /* 2302168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2303168404Spjd * this into a string unless 'literal' is specified. 2304168404Spjd */ 2305168404Spjd { 2306168404Spjd val = getprop_uint64(zhp, prop, &source); 2307168404Spjd time_t time = (time_t)val; 2308168404Spjd struct tm t; 2309168404Spjd 2310168404Spjd if (literal || 2311168404Spjd localtime_r(&time, &t) == NULL || 2312168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2313168404Spjd &t) == 0) 2314168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2315168404Spjd } 2316168404Spjd break; 2317168404Spjd 2318168404Spjd case ZFS_PROP_MOUNTPOINT: 2319168404Spjd /* 2320168404Spjd * Getting the precise mountpoint can be tricky. 2321168404Spjd * 2322168404Spjd * - for 'none' or 'legacy', return those values. 2323168404Spjd * - for inherited mountpoints, we want to take everything 2324168404Spjd * after our ancestor and append it to the inherited value. 2325168404Spjd * 2326168404Spjd * If the pool has an alternate root, we want to prepend that 2327168404Spjd * root to any values we return. 2328168404Spjd */ 2329185029Spjd 2330168404Spjd str = getprop_string(zhp, prop, &source); 2331168404Spjd 2332185029Spjd if (str[0] == '/') { 2333185029Spjd char buf[MAXPATHLEN]; 2334185029Spjd char *root = buf; 2335219089Spjd const char *relpath; 2336168404Spjd 2337219089Spjd /* 2338219089Spjd * If we inherit the mountpoint, even from a dataset 2339219089Spjd * with a received value, the source will be the path of 2340219089Spjd * the dataset we inherit from. If source is 2341219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2342219089Spjd * inherited. 2343219089Spjd */ 2344219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2345219089Spjd relpath = ""; 2346219089Spjd } else { 2347219089Spjd relpath = zhp->zfs_name + strlen(source); 2348219089Spjd if (relpath[0] == '/') 2349219089Spjd relpath++; 2350219089Spjd } 2351185029Spjd 2352185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2353263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2354263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2355185029Spjd root[0] = '\0'; 2356185029Spjd /* 2357185029Spjd * Special case an alternate root of '/'. This will 2358185029Spjd * avoid having multiple leading slashes in the 2359185029Spjd * mountpoint path. 2360185029Spjd */ 2361185029Spjd if (strcmp(root, "/") == 0) 2362185029Spjd root++; 2363185029Spjd 2364185029Spjd /* 2365185029Spjd * If the mountpoint is '/' then skip over this 2366185029Spjd * if we are obtaining either an alternate root or 2367185029Spjd * an inherited mountpoint. 2368185029Spjd */ 2369185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2370185029Spjd relpath[0] != '\0')) 2371168404Spjd str++; 2372168404Spjd 2373168404Spjd if (relpath[0] == '\0') 2374168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2375168404Spjd root, str); 2376168404Spjd else 2377168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2378168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2379168404Spjd relpath); 2380168404Spjd } else { 2381168404Spjd /* 'legacy' or 'none' */ 2382168404Spjd (void) strlcpy(propbuf, str, proplen); 2383168404Spjd } 2384168404Spjd 2385168404Spjd break; 2386168404Spjd 2387168404Spjd case ZFS_PROP_ORIGIN: 2388289362Smav str = getprop_string(zhp, prop, &source); 2389289362Smav if (str == NULL) 2390168404Spjd return (-1); 2391289362Smav (void) strlcpy(propbuf, str, proplen); 2392168404Spjd break; 2393168404Spjd 2394228103Smm case ZFS_PROP_CLONES: 2395228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2396228103Smm return (-1); 2397228103Smm break; 2398228103Smm 2399168404Spjd case ZFS_PROP_QUOTA: 2400185029Spjd case ZFS_PROP_REFQUOTA: 2401168404Spjd case ZFS_PROP_RESERVATION: 2402185029Spjd case ZFS_PROP_REFRESERVATION: 2403185029Spjd 2404168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2405168404Spjd return (-1); 2406168404Spjd 2407168404Spjd /* 2408168404Spjd * If quota or reservation is 0, we translate this into 'none' 2409168404Spjd * (unless literal is set), and indicate that it's the default 2410168404Spjd * value. Otherwise, we print the number nicely and indicate 2411168404Spjd * that its set locally. 2412168404Spjd */ 2413168404Spjd if (val == 0) { 2414168404Spjd if (literal) 2415168404Spjd (void) strlcpy(propbuf, "0", proplen); 2416168404Spjd else 2417168404Spjd (void) strlcpy(propbuf, "none", proplen); 2418168404Spjd } else { 2419168404Spjd if (literal) 2420168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2421168404Spjd (u_longlong_t)val); 2422168404Spjd else 2423168404Spjd zfs_nicenum(val, propbuf, proplen); 2424168404Spjd } 2425168404Spjd break; 2426168404Spjd 2427264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2428264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2429264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2430264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2431264835Sdelphij 2432264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2433264835Sdelphij return (-1); 2434264835Sdelphij 2435264835Sdelphij /* 2436264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2437264835Sdelphij * literal is set), and indicate that it's the default value. 2438264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2439264835Sdelphij * set locally. 2440264835Sdelphij */ 2441264835Sdelphij if (literal) { 2442264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2443264835Sdelphij (u_longlong_t)val); 2444264835Sdelphij } else if (val == UINT64_MAX) { 2445264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2446264835Sdelphij } else { 2447264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2448264835Sdelphij } 2449264835Sdelphij break; 2450264835Sdelphij 2451223623Smm case ZFS_PROP_REFRATIO: 2452168404Spjd case ZFS_PROP_COMPRESSRATIO: 2453168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2454168404Spjd return (-1); 2455219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2456219089Spjd (u_longlong_t)(val / 100), 2457219089Spjd (u_longlong_t)(val % 100)); 2458168404Spjd break; 2459168404Spjd 2460168404Spjd case ZFS_PROP_TYPE: 2461168404Spjd switch (zhp->zfs_type) { 2462168404Spjd case ZFS_TYPE_FILESYSTEM: 2463168404Spjd str = "filesystem"; 2464168404Spjd break; 2465168404Spjd case ZFS_TYPE_VOLUME: 2466168404Spjd str = "volume"; 2467168404Spjd break; 2468168404Spjd case ZFS_TYPE_SNAPSHOT: 2469168404Spjd str = "snapshot"; 2470168404Spjd break; 2471260183Sdelphij case ZFS_TYPE_BOOKMARK: 2472260183Sdelphij str = "bookmark"; 2473260183Sdelphij break; 2474168404Spjd default: 2475168404Spjd abort(); 2476168404Spjd } 2477168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2478168404Spjd break; 2479168404Spjd 2480168404Spjd case ZFS_PROP_MOUNTED: 2481168404Spjd /* 2482168404Spjd * The 'mounted' property is a pseudo-property that described 2483168404Spjd * whether the filesystem is currently mounted. Even though 2484168404Spjd * it's a boolean value, the typical values of "on" and "off" 2485168404Spjd * don't make sense, so we translate to "yes" and "no". 2486168404Spjd */ 2487168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2488168404Spjd src, &source, &val) != 0) 2489168404Spjd return (-1); 2490168404Spjd if (val) 2491168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2492168404Spjd else 2493168404Spjd (void) strlcpy(propbuf, "no", proplen); 2494168404Spjd break; 2495168404Spjd 2496168404Spjd case ZFS_PROP_NAME: 2497168404Spjd /* 2498168404Spjd * The 'name' property is a pseudo-property derived from the 2499168404Spjd * dataset name. It is presented as a real property to simplify 2500168404Spjd * consumers. 2501168404Spjd */ 2502168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2503168404Spjd break; 2504168404Spjd 2505219089Spjd case ZFS_PROP_MLSLABEL: 2506219089Spjd { 2507277300Ssmh#ifdef illumos 2508219089Spjd m_label_t *new_sl = NULL; 2509219089Spjd char *ascii = NULL; /* human readable label */ 2510219089Spjd 2511219089Spjd (void) strlcpy(propbuf, 2512219089Spjd getprop_string(zhp, prop, &source), proplen); 2513219089Spjd 2514219089Spjd if (literal || (strcasecmp(propbuf, 2515219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2516219089Spjd break; 2517219089Spjd 2518219089Spjd /* 2519219089Spjd * Try to translate the internal hex string to 2520219089Spjd * human-readable output. If there are any 2521219089Spjd * problems just use the hex string. 2522219089Spjd */ 2523219089Spjd 2524219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2525219089Spjd L_NO_CORRECTION, NULL) == -1) { 2526219089Spjd m_label_free(new_sl); 2527219089Spjd break; 2528219089Spjd } 2529219089Spjd 2530219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2531219089Spjd DEF_NAMES) != 0) { 2532219089Spjd if (ascii) 2533219089Spjd free(ascii); 2534219089Spjd m_label_free(new_sl); 2535219089Spjd break; 2536219089Spjd } 2537219089Spjd m_label_free(new_sl); 2538219089Spjd 2539219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2540219089Spjd free(ascii); 2541277300Ssmh#else /* !illumos */ 2542219089Spjd propbuf[0] = '\0'; 2543277300Ssmh#endif /* illumos */ 2544219089Spjd } 2545219089Spjd break; 2546219089Spjd 2547236705Smm case ZFS_PROP_GUID: 2548236705Smm /* 2549236705Smm * GUIDs are stored as numbers, but they are identifiers. 2550236705Smm * We don't want them to be pretty printed, because pretty 2551236705Smm * printing mangles the ID into a truncated and useless value. 2552236705Smm */ 2553236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2554236705Smm return (-1); 2555236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2556236705Smm break; 2557236705Smm 2558168404Spjd default: 2559185029Spjd switch (zfs_prop_get_type(prop)) { 2560185029Spjd case PROP_TYPE_NUMBER: 2561185029Spjd if (get_numeric_property(zhp, prop, src, 2562185029Spjd &source, &val) != 0) 2563185029Spjd return (-1); 2564185029Spjd if (literal) 2565185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2566185029Spjd (u_longlong_t)val); 2567185029Spjd else 2568185029Spjd zfs_nicenum(val, propbuf, proplen); 2569185029Spjd break; 2570185029Spjd 2571185029Spjd case PROP_TYPE_STRING: 2572289362Smav str = getprop_string(zhp, prop, &source); 2573289362Smav if (str == NULL) 2574289362Smav return (-1); 2575289362Smav (void) strlcpy(propbuf, str, proplen); 2576185029Spjd break; 2577185029Spjd 2578185029Spjd case PROP_TYPE_INDEX: 2579185029Spjd if (get_numeric_property(zhp, prop, src, 2580185029Spjd &source, &val) != 0) 2581185029Spjd return (-1); 2582185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2583185029Spjd return (-1); 2584185029Spjd (void) strlcpy(propbuf, strval, proplen); 2585185029Spjd break; 2586185029Spjd 2587185029Spjd default: 2588185029Spjd abort(); 2589185029Spjd } 2590168404Spjd } 2591168404Spjd 2592168404Spjd get_source(zhp, src, source, statbuf, statlen); 2593168404Spjd 2594168404Spjd return (0); 2595168404Spjd} 2596168404Spjd 2597168404Spjd/* 2598168404Spjd * Utility function to get the given numeric property. Does no validation that 2599168404Spjd * the given property is the appropriate type; should only be used with 2600168404Spjd * hard-coded property types. 2601168404Spjd */ 2602168404Spjduint64_t 2603168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2604168404Spjd{ 2605168404Spjd char *source; 2606168404Spjd uint64_t val; 2607168404Spjd 2608185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2609168404Spjd 2610168404Spjd return (val); 2611168404Spjd} 2612168404Spjd 2613185029Spjdint 2614185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2615185029Spjd{ 2616185029Spjd char buf[64]; 2617185029Spjd 2618209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2619185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2620185029Spjd} 2621185029Spjd 2622168404Spjd/* 2623168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2624168404Spjd */ 2625168404Spjdint 2626168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2627185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2628168404Spjd{ 2629168404Spjd char *source; 2630168404Spjd 2631168404Spjd /* 2632168404Spjd * Check to see if this property applies to our object 2633168404Spjd */ 2634185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2635168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2636168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2637168404Spjd zfs_prop_to_name(prop))); 2638185029Spjd } 2639168404Spjd 2640168404Spjd if (src) 2641185029Spjd *src = ZPROP_SRC_NONE; 2642168404Spjd 2643168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2644168404Spjd return (-1); 2645168404Spjd 2646168404Spjd get_source(zhp, src, source, statbuf, statlen); 2647168404Spjd 2648168404Spjd return (0); 2649168404Spjd} 2650168404Spjd 2651209962Smmstatic int 2652209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2653209962Smm char **domainp, idmap_rid_t *ridp) 2654209962Smm{ 2655277300Ssmh#ifdef illumos 2656209962Smm idmap_get_handle_t *get_hdl = NULL; 2657209962Smm idmap_stat status; 2658209962Smm int err = EINVAL; 2659209962Smm 2660219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2661209962Smm goto out; 2662209962Smm 2663209962Smm if (isuser) { 2664209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2665209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2666209962Smm } else { 2667209962Smm err = idmap_get_sidbygid(get_hdl, id, 2668209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2669209962Smm } 2670209962Smm if (err == IDMAP_SUCCESS && 2671209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2672209962Smm status == IDMAP_SUCCESS) 2673209962Smm err = 0; 2674209962Smm else 2675209962Smm err = EINVAL; 2676209962Smmout: 2677209962Smm if (get_hdl) 2678209962Smm idmap_get_destroy(get_hdl); 2679209962Smm return (err); 2680277300Ssmh#else /* !illumos */ 2681209962Smm assert(!"invalid code path"); 2682264852Ssmh return (EINVAL); // silence compiler warning 2683277300Ssmh#endif /* illumos */ 2684209962Smm} 2685209962Smm 2686168404Spjd/* 2687209962Smm * convert the propname into parameters needed by kernel 2688209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2689209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2690209962Smm */ 2691209962Smmstatic int 2692209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2693209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2694209962Smm{ 2695209962Smm zfs_userquota_prop_t type; 2696209962Smm char *cp, *end; 2697209962Smm char *numericsid = NULL; 2698209962Smm boolean_t isuser; 2699209962Smm 2700209962Smm domain[0] = '\0'; 2701275579Sdelphij *ridp = 0; 2702209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2703209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2704209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2705209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2706209962Smm break; 2707209962Smm } 2708209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2709209962Smm return (EINVAL); 2710209962Smm *typep = type; 2711209962Smm 2712209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2713209962Smm type == ZFS_PROP_USERUSED); 2714209962Smm 2715209962Smm cp = strchr(propname, '@') + 1; 2716209962Smm 2717209962Smm if (strchr(cp, '@')) { 2718277300Ssmh#ifdef illumos 2719209962Smm /* 2720209962Smm * It's a SID name (eg "user@domain") that needs to be 2721209962Smm * turned into S-1-domainID-RID. 2722209962Smm */ 2723275579Sdelphij int flag = 0; 2724275579Sdelphij idmap_stat stat, map_stat; 2725275579Sdelphij uid_t pid; 2726275579Sdelphij idmap_rid_t rid; 2727275579Sdelphij idmap_get_handle_t *gh = NULL; 2728275579Sdelphij 2729275579Sdelphij stat = idmap_get_create(&gh); 2730275579Sdelphij if (stat != IDMAP_SUCCESS) { 2731275579Sdelphij idmap_get_destroy(gh); 2732275579Sdelphij return (ENOMEM); 2733275579Sdelphij } 2734209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2735209962Smm return (ENOENT); 2736209962Smm if (isuser) { 2737275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2738275579Sdelphij if (stat < 0) 2739275579Sdelphij return (ENOENT); 2740275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2741275579Sdelphij &rid, &map_stat); 2742209962Smm } else { 2743275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2744275579Sdelphij if (stat < 0) 2745275579Sdelphij return (ENOENT); 2746275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2747275579Sdelphij &rid, &map_stat); 2748209962Smm } 2749275579Sdelphij if (stat < 0) { 2750275579Sdelphij idmap_get_destroy(gh); 2751209962Smm return (ENOENT); 2752209962Smm } 2753275579Sdelphij stat = idmap_get_mappings(gh); 2754275579Sdelphij idmap_get_destroy(gh); 2755275579Sdelphij 2756275579Sdelphij if (stat < 0) { 2757275579Sdelphij return (ENOENT); 2758275579Sdelphij } 2759209962Smm if (numericsid == NULL) 2760209962Smm return (ENOENT); 2761209962Smm cp = numericsid; 2762275579Sdelphij *ridp = rid; 2763209962Smm /* will be further decoded below */ 2764277300Ssmh#else /* !illumos */ 2765219089Spjd return (ENOENT); 2766277300Ssmh#endif /* illumos */ 2767209962Smm } 2768209962Smm 2769209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2770209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2771209962Smm (void) strlcpy(domain, cp, domainlen); 2772209962Smm errno = 0; 2773275579Sdelphij if (*ridp == 0) { 2774275579Sdelphij cp = strrchr(domain, '-'); 2775275579Sdelphij *cp = '\0'; 2776275579Sdelphij cp++; 2777275579Sdelphij *ridp = strtoull(cp, &end, 10); 2778275579Sdelphij } else { 2779275579Sdelphij end = ""; 2780275579Sdelphij } 2781209962Smm if (numericsid) { 2782209962Smm free(numericsid); 2783209962Smm numericsid = NULL; 2784209962Smm } 2785209962Smm if (errno != 0 || *end != '\0') 2786209962Smm return (EINVAL); 2787209962Smm } else if (!isdigit(*cp)) { 2788209962Smm /* 2789209962Smm * It's a user/group name (eg "user") that needs to be 2790209962Smm * turned into a uid/gid 2791209962Smm */ 2792209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2793209962Smm return (ENOENT); 2794209962Smm if (isuser) { 2795209962Smm struct passwd *pw; 2796209962Smm pw = getpwnam(cp); 2797209962Smm if (pw == NULL) 2798209962Smm return (ENOENT); 2799209962Smm *ridp = pw->pw_uid; 2800209962Smm } else { 2801209962Smm struct group *gr; 2802209962Smm gr = getgrnam(cp); 2803209962Smm if (gr == NULL) 2804209962Smm return (ENOENT); 2805209962Smm *ridp = gr->gr_gid; 2806209962Smm } 2807209962Smm } else { 2808209962Smm /* It's a user/group ID (eg "12345"). */ 2809209962Smm uid_t id = strtoul(cp, &end, 10); 2810209962Smm idmap_rid_t rid; 2811209962Smm char *mapdomain; 2812209962Smm 2813209962Smm if (*end != '\0') 2814209962Smm return (EINVAL); 2815209962Smm if (id > MAXUID) { 2816209962Smm /* It's an ephemeral ID. */ 2817209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2818209962Smm &mapdomain, &rid) != 0) 2819209962Smm return (ENOENT); 2820209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2821209962Smm *ridp = rid; 2822209962Smm } else { 2823209962Smm *ridp = id; 2824209962Smm } 2825209962Smm } 2826209962Smm 2827209962Smm ASSERT3P(numericsid, ==, NULL); 2828209962Smm return (0); 2829209962Smm} 2830209962Smm 2831209962Smmstatic int 2832209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2833209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2834209962Smm{ 2835209962Smm int err; 2836209962Smm zfs_cmd_t zc = { 0 }; 2837209962Smm 2838228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2839209962Smm 2840209962Smm err = userquota_propname_decode(propname, 2841209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2842209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2843209962Smm zc.zc_objset_type = *typep; 2844209962Smm if (err) 2845209962Smm return (err); 2846209962Smm 2847209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2848209962Smm if (err) 2849209962Smm return (err); 2850209962Smm 2851209962Smm *propvalue = zc.zc_cookie; 2852209962Smm return (0); 2853209962Smm} 2854209962Smm 2855209962Smmint 2856209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2857209962Smm uint64_t *propvalue) 2858209962Smm{ 2859209962Smm zfs_userquota_prop_t type; 2860209962Smm 2861209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2862209962Smm &type)); 2863209962Smm} 2864209962Smm 2865209962Smmint 2866209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2867209962Smm char *propbuf, int proplen, boolean_t literal) 2868209962Smm{ 2869209962Smm int err; 2870209962Smm uint64_t propvalue; 2871209962Smm zfs_userquota_prop_t type; 2872209962Smm 2873209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2874209962Smm &type); 2875209962Smm 2876209962Smm if (err) 2877209962Smm return (err); 2878209962Smm 2879209962Smm if (literal) { 2880209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2881209962Smm } else if (propvalue == 0 && 2882209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2883209962Smm (void) strlcpy(propbuf, "none", proplen); 2884209962Smm } else { 2885209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2886209962Smm } 2887209962Smm return (0); 2888209962Smm} 2889209962Smm 2890228103Smmint 2891228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2892228103Smm uint64_t *propvalue) 2893168404Spjd{ 2894228103Smm int err; 2895228103Smm zfs_cmd_t zc = { 0 }; 2896228103Smm const char *snapname; 2897168404Spjd 2898228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2899168404Spjd 2900228103Smm snapname = strchr(propname, '@') + 1; 2901228103Smm if (strchr(snapname, '@')) { 2902228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2903228103Smm } else { 2904228103Smm /* snapname is the short name, append it to zhp's fsname */ 2905228103Smm char *cp; 2906209962Smm 2907228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2908228103Smm sizeof (zc.zc_value)); 2909228103Smm cp = strchr(zc.zc_value, '@'); 2910228103Smm if (cp != NULL) 2911228103Smm *cp = '\0'; 2912228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2913228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2914228103Smm } 2915209962Smm 2916228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2917228103Smm if (err) 2918228103Smm return (err); 2919228103Smm 2920228103Smm *propvalue = zc.zc_cookie; 2921228103Smm return (0); 2922209962Smm} 2923209962Smm 2924168404Spjdint 2925228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2926228103Smm char *propbuf, int proplen, boolean_t literal) 2927168404Spjd{ 2928228103Smm int err; 2929228103Smm uint64_t propvalue; 2930168404Spjd 2931228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2932185029Spjd 2933228103Smm if (err) 2934228103Smm return (err); 2935209962Smm 2936228103Smm if (literal) { 2937228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2938228103Smm } else { 2939228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2940168404Spjd } 2941228103Smm return (0); 2942168404Spjd} 2943168404Spjd 2944168404Spjd/* 2945228103Smm * Returns the name of the given zfs handle. 2946168404Spjd */ 2947228103Smmconst char * 2948228103Smmzfs_get_name(const zfs_handle_t *zhp) 2949168404Spjd{ 2950228103Smm return (zhp->zfs_name); 2951228103Smm} 2952168404Spjd 2953228103Smm/* 2954307106Smav * Returns the name of the parent pool for the given zfs handle. 2955307106Smav */ 2956307106Smavconst char * 2957307106Smavzfs_get_pool_name(const zfs_handle_t *zhp) 2958307106Smav{ 2959307106Smav return (zhp->zpool_hdl->zpool_name); 2960307106Smav} 2961307106Smav 2962307106Smav/* 2963228103Smm * Returns the type of the given zfs handle. 2964228103Smm */ 2965228103Smmzfs_type_t 2966228103Smmzfs_get_type(const zfs_handle_t *zhp) 2967228103Smm{ 2968228103Smm return (zhp->zfs_type); 2969168404Spjd} 2970168404Spjd 2971168404Spjd/* 2972219089Spjd * Is one dataset name a child dataset of another? 2973219089Spjd * 2974219089Spjd * Needs to handle these cases: 2975219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2976219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2977219089Spjd * Descendant? No. No. No. Yes. 2978219089Spjd */ 2979219089Spjdstatic boolean_t 2980219089Spjdis_descendant(const char *ds1, const char *ds2) 2981219089Spjd{ 2982219089Spjd size_t d1len = strlen(ds1); 2983219089Spjd 2984219089Spjd /* ds2 can't be a descendant if it's smaller */ 2985219089Spjd if (strlen(ds2) < d1len) 2986219089Spjd return (B_FALSE); 2987219089Spjd 2988219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2989219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2990219089Spjd} 2991219089Spjd 2992219089Spjd/* 2993168404Spjd * Given a complete name, return just the portion that refers to the parent. 2994228103Smm * Will return -1 if there is no parent (path is just the name of the 2995228103Smm * pool). 2996168404Spjd */ 2997168404Spjdstatic int 2998168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2999168404Spjd{ 3000228103Smm char *slashp; 3001168404Spjd 3002228103Smm (void) strlcpy(buf, path, buflen); 3003228103Smm 3004228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 3005168404Spjd return (-1); 3006228103Smm *slashp = '\0'; 3007168404Spjd 3008168404Spjd return (0); 3009168404Spjd} 3010168404Spjd 3011168404Spjd/* 3012185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 3013185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 3014185029Spjd * closest existing ancestor for the given path. In prefixlen return the 3015185029Spjd * length of already existing prefix of the given path. We also fetch the 3016185029Spjd * 'zoned' property, which is used to validate property settings when creating 3017185029Spjd * new datasets. 3018168404Spjd */ 3019168404Spjdstatic int 3020185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 3021185029Spjd boolean_t accept_ancestor, int *prefixlen) 3022168404Spjd{ 3023168404Spjd zfs_cmd_t zc = { 0 }; 3024307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3025168404Spjd char *slash; 3026168404Spjd zfs_handle_t *zhp; 3027168404Spjd char errbuf[1024]; 3028219089Spjd uint64_t is_zoned; 3029168404Spjd 3030209962Smm (void) snprintf(errbuf, sizeof (errbuf), 3031209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 3032168404Spjd 3033168404Spjd /* get parent, and check to see if this is just a pool */ 3034168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 3035168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3036168404Spjd "missing dataset name")); 3037168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3038168404Spjd } 3039168404Spjd 3040168404Spjd /* check to see if the pool exists */ 3041168404Spjd if ((slash = strchr(parent, '/')) == NULL) 3042168404Spjd slash = parent + strlen(parent); 3043168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 3044168404Spjd zc.zc_name[slash - parent] = '\0'; 3045168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 3046168404Spjd errno == ENOENT) { 3047168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3048168404Spjd "no such pool '%s'"), zc.zc_name); 3049168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3050168404Spjd } 3051168404Spjd 3052168404Spjd /* check to see if the parent dataset exists */ 3053185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 3054185029Spjd if (errno == ENOENT && accept_ancestor) { 3055185029Spjd /* 3056185029Spjd * Go deeper to find an ancestor, give up on top level. 3057185029Spjd */ 3058185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 3059185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3060185029Spjd "no such pool '%s'"), zc.zc_name); 3061185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3062185029Spjd } 3063185029Spjd } else if (errno == ENOENT) { 3064168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3065168404Spjd "parent does not exist")); 3066168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3067185029Spjd } else 3068168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3069168404Spjd } 3070168404Spjd 3071219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 3072219089Spjd if (zoned != NULL) 3073219089Spjd *zoned = is_zoned; 3074219089Spjd 3075168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 3076219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 3077168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 3078168404Spjd zfs_close(zhp); 3079168404Spjd return (-1); 3080168404Spjd } 3081168404Spjd 3082168404Spjd /* make sure parent is a filesystem */ 3083168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3084168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3085168404Spjd "parent is not a filesystem")); 3086168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3087168404Spjd zfs_close(zhp); 3088168404Spjd return (-1); 3089168404Spjd } 3090168404Spjd 3091168404Spjd zfs_close(zhp); 3092185029Spjd if (prefixlen != NULL) 3093185029Spjd *prefixlen = strlen(parent); 3094168404Spjd return (0); 3095168404Spjd} 3096168404Spjd 3097168404Spjd/* 3098185029Spjd * Finds whether the dataset of the given type(s) exists. 3099185029Spjd */ 3100185029Spjdboolean_t 3101185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3102185029Spjd{ 3103185029Spjd zfs_handle_t *zhp; 3104185029Spjd 3105185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3106185029Spjd return (B_FALSE); 3107185029Spjd 3108185029Spjd /* 3109185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3110185029Spjd */ 3111185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3112185029Spjd int ds_type = zhp->zfs_type; 3113185029Spjd 3114185029Spjd zfs_close(zhp); 3115185029Spjd if (types & ds_type) 3116185029Spjd return (B_TRUE); 3117185029Spjd } 3118185029Spjd return (B_FALSE); 3119185029Spjd} 3120185029Spjd 3121185029Spjd/* 3122185029Spjd * Given a path to 'target', create all the ancestors between 3123185029Spjd * the prefixlen portion of the path, and the target itself. 3124185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3125185029Spjd */ 3126185029Spjdint 3127185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3128185029Spjd{ 3129185029Spjd zfs_handle_t *h; 3130185029Spjd char *cp; 3131185029Spjd const char *opname; 3132185029Spjd 3133185029Spjd /* make sure prefix exists */ 3134185029Spjd cp = target + prefixlen; 3135185029Spjd if (*cp != '/') { 3136185029Spjd assert(strchr(cp, '/') == NULL); 3137185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3138185029Spjd } else { 3139185029Spjd *cp = '\0'; 3140185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3141185029Spjd *cp = '/'; 3142185029Spjd } 3143185029Spjd if (h == NULL) 3144185029Spjd return (-1); 3145185029Spjd zfs_close(h); 3146185029Spjd 3147185029Spjd /* 3148185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3149185029Spjd * up to the prefixlen-long one. 3150185029Spjd */ 3151185029Spjd for (cp = target + prefixlen + 1; 3152307050Smav (cp = strchr(cp, '/')) != NULL; *cp = '/', cp++) { 3153185029Spjd 3154185029Spjd *cp = '\0'; 3155185029Spjd 3156185029Spjd h = make_dataset_handle(hdl, target); 3157185029Spjd if (h) { 3158185029Spjd /* it already exists, nothing to do here */ 3159185029Spjd zfs_close(h); 3160185029Spjd continue; 3161185029Spjd } 3162185029Spjd 3163185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3164185029Spjd NULL) != 0) { 3165185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3166185029Spjd goto ancestorerr; 3167185029Spjd } 3168185029Spjd 3169185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3170185029Spjd if (h == NULL) { 3171185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3172185029Spjd goto ancestorerr; 3173185029Spjd } 3174185029Spjd 3175185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3176185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3177185029Spjd goto ancestorerr; 3178185029Spjd } 3179185029Spjd 3180185029Spjd if (zfs_share(h) != 0) { 3181185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3182185029Spjd goto ancestorerr; 3183185029Spjd } 3184185029Spjd 3185185029Spjd zfs_close(h); 3186185029Spjd } 3187185029Spjd 3188185029Spjd return (0); 3189185029Spjd 3190185029Spjdancestorerr: 3191185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3192185029Spjd "failed to %s ancestor '%s'"), opname, target); 3193185029Spjd return (-1); 3194185029Spjd} 3195185029Spjd 3196185029Spjd/* 3197185029Spjd * Creates non-existing ancestors of the given path. 3198185029Spjd */ 3199185029Spjdint 3200185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3201185029Spjd{ 3202185029Spjd int prefix; 3203185029Spjd char *path_copy; 3204307107Smav int rc = 0; 3205185029Spjd 3206219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3207185029Spjd return (-1); 3208185029Spjd 3209185029Spjd if ((path_copy = strdup(path)) != NULL) { 3210185029Spjd rc = create_parents(hdl, path_copy, prefix); 3211185029Spjd free(path_copy); 3212185029Spjd } 3213185029Spjd if (path_copy == NULL || rc != 0) 3214185029Spjd return (-1); 3215185029Spjd 3216185029Spjd return (0); 3217185029Spjd} 3218185029Spjd 3219185029Spjd/* 3220168404Spjd * Create a new filesystem or volume. 3221168404Spjd */ 3222168404Spjdint 3223168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3224168404Spjd nvlist_t *props) 3225168404Spjd{ 3226168404Spjd int ret; 3227168404Spjd uint64_t size = 0; 3228168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3229168404Spjd char errbuf[1024]; 3230168404Spjd uint64_t zoned; 3231298472Savg enum lzc_dataset_type ost; 3232168404Spjd 3233168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3234168404Spjd "cannot create '%s'"), path); 3235168404Spjd 3236168404Spjd /* validate the path, taking care to note the extended error message */ 3237185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3238168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3239168404Spjd 3240168404Spjd /* validate parents exist */ 3241185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3242168404Spjd return (-1); 3243168404Spjd 3244168404Spjd /* 3245168404Spjd * The failure modes when creating a dataset of a different type over 3246168404Spjd * one that already exists is a little strange. In particular, if you 3247168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3248168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3249168404Spjd * first try to see if the dataset exists. 3250168404Spjd */ 3251248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3252168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3253168404Spjd "dataset already exists")); 3254168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3255168404Spjd } 3256168404Spjd 3257168404Spjd if (type == ZFS_TYPE_VOLUME) 3258298472Savg ost = LZC_DATSET_TYPE_ZVOL; 3259168404Spjd else 3260298472Savg ost = LZC_DATSET_TYPE_ZFS; 3261168404Spjd 3262289500Smav /* open zpool handle for prop validation */ 3263307108Smav char pool_path[ZFS_MAX_DATASET_NAME_LEN]; 3264289500Smav (void) strlcpy(pool_path, path, sizeof (pool_path)); 3265289500Smav 3266289500Smav /* truncate pool_path at first slash */ 3267289500Smav char *p = strchr(pool_path, '/'); 3268289500Smav if (p != NULL) 3269289500Smav *p = '\0'; 3270289500Smav 3271289500Smav zpool_handle_t *zpool_handle = zpool_open(hdl, pool_path); 3272289500Smav 3273185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3274289500Smav zoned, NULL, zpool_handle, errbuf)) == 0) { 3275289500Smav zpool_close(zpool_handle); 3276168404Spjd return (-1); 3277289500Smav } 3278289500Smav zpool_close(zpool_handle); 3279168404Spjd 3280168404Spjd if (type == ZFS_TYPE_VOLUME) { 3281168404Spjd /* 3282168404Spjd * If we are creating a volume, the size and block size must 3283168404Spjd * satisfy a few restraints. First, the blocksize must be a 3284168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3285168404Spjd * volsize must be a multiple of the block size, and cannot be 3286168404Spjd * zero. 3287168404Spjd */ 3288168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3289168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3290168404Spjd nvlist_free(props); 3291168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3292168404Spjd "missing volume size")); 3293168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3294168404Spjd } 3295168404Spjd 3296168404Spjd if ((ret = nvlist_lookup_uint64(props, 3297168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3298168404Spjd &blocksize)) != 0) { 3299168404Spjd if (ret == ENOENT) { 3300168404Spjd blocksize = zfs_prop_default_numeric( 3301168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3302168404Spjd } else { 3303168404Spjd nvlist_free(props); 3304168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3305168404Spjd "missing volume block size")); 3306168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3307168404Spjd } 3308168404Spjd } 3309168404Spjd 3310168404Spjd if (size == 0) { 3311168404Spjd nvlist_free(props); 3312168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3313168404Spjd "volume size cannot be zero")); 3314168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3315168404Spjd } 3316168404Spjd 3317168404Spjd if (size % blocksize != 0) { 3318168404Spjd nvlist_free(props); 3319168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3320168404Spjd "volume size must be a multiple of volume block " 3321168404Spjd "size")); 3322168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3323168404Spjd } 3324168404Spjd } 3325168404Spjd 3326248571Smm /* create the dataset */ 3327248571Smm ret = lzc_create(path, ost, props); 3328168404Spjd nvlist_free(props); 3329168404Spjd 3330168404Spjd /* check for failure */ 3331168404Spjd if (ret != 0) { 3332307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3333168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3334168404Spjd 3335168404Spjd switch (errno) { 3336168404Spjd case ENOENT: 3337168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3338168404Spjd "no such parent '%s'"), parent); 3339168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3340168404Spjd 3341168404Spjd case EINVAL: 3342168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3343168404Spjd "parent '%s' is not a filesystem"), parent); 3344168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3345168404Spjd 3346185029Spjd case ENOTSUP: 3347185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3348185029Spjd "pool must be upgraded to set this " 3349185029Spjd "property or value")); 3350185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3351168404Spjd#ifdef _ILP32 3352168404Spjd case EOVERFLOW: 3353168404Spjd /* 3354168404Spjd * This platform can't address a volume this big. 3355168404Spjd */ 3356168404Spjd if (type == ZFS_TYPE_VOLUME) 3357168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3358168404Spjd errbuf)); 3359168404Spjd#endif 3360168404Spjd /* FALLTHROUGH */ 3361168404Spjd default: 3362168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3363168404Spjd } 3364168404Spjd } 3365168404Spjd 3366168404Spjd return (0); 3367168404Spjd} 3368168404Spjd 3369168404Spjd/* 3370168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3371238422Smm * isn't mounted, and that there are no active dependents. If the file system 3372238422Smm * does not exist this function does nothing. 3373168404Spjd */ 3374168404Spjdint 3375219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3376168404Spjd{ 3377168404Spjd zfs_cmd_t zc = { 0 }; 3378168404Spjd 3379260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3380260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3381260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3382260183Sdelphij int error = lzc_destroy_bookmarks(nv, NULL); 3383260183Sdelphij fnvlist_free(nv); 3384260183Sdelphij if (error != 0) { 3385260183Sdelphij return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3386260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3387260183Sdelphij zhp->zfs_name)); 3388260183Sdelphij } 3389260183Sdelphij return (0); 3390260183Sdelphij } 3391260183Sdelphij 3392168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3393168404Spjd 3394168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3395168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3396168404Spjd } else { 3397168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3398168404Spjd } 3399168404Spjd 3400219089Spjd zc.zc_defer_destroy = defer; 3401238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3402238422Smm errno != ENOENT) { 3403168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3404168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3405168404Spjd zhp->zfs_name)); 3406168404Spjd } 3407168404Spjd 3408168404Spjd remove_mountpoint(zhp); 3409168404Spjd 3410168404Spjd return (0); 3411168404Spjd} 3412168404Spjd 3413168404Spjdstruct destroydata { 3414228103Smm nvlist_t *nvl; 3415228103Smm const char *snapname; 3416168404Spjd}; 3417168404Spjd 3418168404Spjdstatic int 3419219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3420168404Spjd{ 3421168404Spjd struct destroydata *dd = arg; 3422307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 3423219089Spjd int rv = 0; 3424168404Spjd 3425228103Smm (void) snprintf(name, sizeof (name), 3426228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3427168404Spjd 3428251646Sdelphij if (lzc_exists(name)) 3429228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3430168404Spjd 3431228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3432228103Smm zfs_close(zhp); 3433168404Spjd return (rv); 3434168404Spjd} 3435168404Spjd 3436168404Spjd/* 3437168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3438168404Spjd */ 3439168404Spjdint 3440219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3441168404Spjd{ 3442168404Spjd int ret; 3443168404Spjd struct destroydata dd = { 0 }; 3444168404Spjd 3445168404Spjd dd.snapname = snapname; 3446228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3447228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3448168404Spjd 3449251646Sdelphij if (nvlist_empty(dd.nvl)) { 3450228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3451168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3452228103Smm zhp->zfs_name, snapname); 3453228103Smm } else { 3454248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3455168404Spjd } 3456228103Smm nvlist_free(dd.nvl); 3457228103Smm return (ret); 3458228103Smm} 3459168404Spjd 3460228103Smm/* 3461248571Smm * Destroys all the snapshots named in the nvlist. 3462228103Smm */ 3463228103Smmint 3464248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3465228103Smm{ 3466228103Smm int ret; 3467307105Smav nvlist_t *errlist = NULL; 3468228103Smm 3469248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3470168404Spjd 3471307105Smav if (ret == 0) { 3472307105Smav nvlist_free(errlist); 3473248571Smm return (0); 3474307105Smav } 3475248571Smm 3476251646Sdelphij if (nvlist_empty(errlist)) { 3477168404Spjd char errbuf[1024]; 3478248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3479248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3480168404Spjd 3481248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3482248571Smm } 3483248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3484248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3485248571Smm char errbuf[1024]; 3486248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3487248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3488248571Smm nvpair_name(pair)); 3489168404Spjd 3490248571Smm switch (fnvpair_value_int32(pair)) { 3491168404Spjd case EEXIST: 3492248571Smm zfs_error_aux(hdl, 3493248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3494248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3495248571Smm break; 3496168404Spjd default: 3497248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3498248571Smm break; 3499168404Spjd } 3500168404Spjd } 3501168404Spjd 3502307105Smav nvlist_free(errlist); 3503248571Smm return (ret); 3504168404Spjd} 3505168404Spjd 3506168404Spjd/* 3507168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3508168404Spjd */ 3509168404Spjdint 3510168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3511168404Spjd{ 3512307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3513168404Spjd int ret; 3514168404Spjd char errbuf[1024]; 3515168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3516168404Spjd uint64_t zoned; 3517168404Spjd 3518168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3519168404Spjd 3520168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3521168404Spjd "cannot create '%s'"), target); 3522168404Spjd 3523228103Smm /* validate the target/clone name */ 3524185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3525168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3526168404Spjd 3527168404Spjd /* validate parents exist */ 3528185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3529168404Spjd return (-1); 3530168404Spjd 3531168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3532168404Spjd 3533168404Spjd /* do the clone */ 3534168404Spjd 3535168404Spjd if (props) { 3536248571Smm zfs_type_t type; 3537248571Smm if (ZFS_IS_VOLUME(zhp)) { 3538248571Smm type = ZFS_TYPE_VOLUME; 3539248571Smm } else { 3540248571Smm type = ZFS_TYPE_FILESYSTEM; 3541248571Smm } 3542185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3543289500Smav zhp, zhp->zpool_hdl, errbuf)) == NULL) 3544168404Spjd return (-1); 3545168404Spjd } 3546168404Spjd 3547248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3548248571Smm nvlist_free(props); 3549168404Spjd 3550168404Spjd if (ret != 0) { 3551168404Spjd switch (errno) { 3552168404Spjd 3553168404Spjd case ENOENT: 3554168404Spjd /* 3555168404Spjd * The parent doesn't exist. We should have caught this 3556168404Spjd * above, but there may a race condition that has since 3557168404Spjd * destroyed the parent. 3558168404Spjd * 3559168404Spjd * At this point, we don't know whether it's the source 3560168404Spjd * that doesn't exist anymore, or whether the target 3561168404Spjd * dataset doesn't exist. 3562168404Spjd */ 3563168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3564168404Spjd "no such parent '%s'"), parent); 3565168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3566168404Spjd 3567168404Spjd case EXDEV: 3568168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3569168404Spjd "source and target pools differ")); 3570168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3571168404Spjd errbuf)); 3572168404Spjd 3573168404Spjd default: 3574168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3575168404Spjd errbuf)); 3576168404Spjd } 3577168404Spjd } 3578168404Spjd 3579168404Spjd return (ret); 3580168404Spjd} 3581168404Spjd 3582168404Spjd/* 3583168404Spjd * Promotes the given clone fs to be the clone parent. 3584168404Spjd */ 3585168404Spjdint 3586168404Spjdzfs_promote(zfs_handle_t *zhp) 3587168404Spjd{ 3588168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3589168404Spjd zfs_cmd_t zc = { 0 }; 3590168404Spjd char parent[MAXPATHLEN]; 3591168404Spjd int ret; 3592168404Spjd char errbuf[1024]; 3593168404Spjd 3594168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3595168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3596168404Spjd 3597168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3598168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3599168404Spjd "snapshots can not be promoted")); 3600168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3601168404Spjd } 3602168404Spjd 3603185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3604168404Spjd if (parent[0] == '\0') { 3605168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3606168404Spjd "not a cloned filesystem")); 3607168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3608168404Spjd } 3609168404Spjd 3610185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3611168404Spjd sizeof (zc.zc_value)); 3612168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3613185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3614168404Spjd 3615168404Spjd if (ret != 0) { 3616168404Spjd int save_errno = errno; 3617168404Spjd 3618168404Spjd switch (save_errno) { 3619168404Spjd case EEXIST: 3620219089Spjd /* There is a conflicting snapshot name. */ 3621168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3622219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3623219089Spjd zc.zc_string, parent); 3624168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3625168404Spjd 3626168404Spjd default: 3627168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3628168404Spjd } 3629168404Spjd } 3630168404Spjd return (ret); 3631168404Spjd} 3632168404Spjd 3633248571Smmtypedef struct snapdata { 3634248571Smm nvlist_t *sd_nvl; 3635248571Smm const char *sd_snapname; 3636248571Smm} snapdata_t; 3637248571Smm 3638248571Smmstatic int 3639248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3640248571Smm{ 3641248571Smm snapdata_t *sd = arg; 3642307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 3643248571Smm int rv = 0; 3644248571Smm 3645253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3646253819Sdelphij (void) snprintf(name, sizeof (name), 3647253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3648248571Smm 3649253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3650248571Smm 3651253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3652253819Sdelphij } 3653248571Smm zfs_close(zhp); 3654253819Sdelphij 3655248571Smm return (rv); 3656248571Smm} 3657248571Smm 3658168404Spjd/* 3659248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3660248571Smm * created. 3661168404Spjd */ 3662168404Spjdint 3663248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3664168404Spjd{ 3665168404Spjd int ret; 3666168404Spjd char errbuf[1024]; 3667248571Smm nvpair_t *elem; 3668248571Smm nvlist_t *errors; 3669168404Spjd 3670168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3671248571Smm "cannot create snapshots ")); 3672168404Spjd 3673248571Smm elem = NULL; 3674248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3675248571Smm const char *snapname = nvpair_name(elem); 3676168404Spjd 3677248571Smm /* validate the target name */ 3678248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3679248571Smm B_TRUE)) { 3680248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3681248571Smm dgettext(TEXT_DOMAIN, 3682248571Smm "cannot create snapshot '%s'"), snapname); 3683248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3684248571Smm } 3685248571Smm } 3686185029Spjd 3687289500Smav /* 3688289500Smav * get pool handle for prop validation. assumes all snaps are in the 3689289500Smav * same pool, as does lzc_snapshot (below). 3690289500Smav */ 3691307108Smav char pool[ZFS_MAX_DATASET_NAME_LEN]; 3692289500Smav elem = nvlist_next_nvpair(snaps, NULL); 3693289500Smav (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); 3694289500Smav pool[strcspn(pool, "/@")] = '\0'; 3695289500Smav zpool_handle_t *zpool_hdl = zpool_open(hdl, pool); 3696289500Smav 3697248571Smm if (props != NULL && 3698248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3699289500Smav props, B_FALSE, NULL, zpool_hdl, errbuf)) == NULL) { 3700289500Smav zpool_close(zpool_hdl); 3701248571Smm return (-1); 3702248571Smm } 3703289500Smav zpool_close(zpool_hdl); 3704248571Smm 3705248571Smm ret = lzc_snapshot(snaps, props, &errors); 3706248571Smm 3707248571Smm if (ret != 0) { 3708248571Smm boolean_t printed = B_FALSE; 3709248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3710248571Smm elem != NULL; 3711248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3712248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3713248571Smm dgettext(TEXT_DOMAIN, 3714248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3715248571Smm (void) zfs_standard_error(hdl, 3716248571Smm fnvpair_value_int32(elem), errbuf); 3717248571Smm printed = B_TRUE; 3718185029Spjd } 3719248571Smm if (!printed) { 3720248571Smm switch (ret) { 3721248571Smm case EXDEV: 3722248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3723248571Smm "multiple snapshots of same " 3724248571Smm "fs not allowed")); 3725248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3726185029Spjd 3727248571Smm break; 3728248571Smm default: 3729248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3730248571Smm } 3731248571Smm } 3732185029Spjd } 3733185029Spjd 3734248571Smm nvlist_free(props); 3735248571Smm nvlist_free(errors); 3736248571Smm return (ret); 3737248571Smm} 3738168404Spjd 3739248571Smmint 3740248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3741248571Smm nvlist_t *props) 3742248571Smm{ 3743248571Smm int ret; 3744248571Smm snapdata_t sd = { 0 }; 3745307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 3746248571Smm char *cp; 3747248571Smm zfs_handle_t *zhp; 3748248571Smm char errbuf[1024]; 3749248571Smm 3750248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3751248571Smm "cannot snapshot %s"), path); 3752248571Smm 3753248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3754248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3755248571Smm 3756248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3757248571Smm cp = strchr(fsname, '@'); 3758248571Smm *cp = '\0'; 3759248571Smm sd.sd_snapname = cp + 1; 3760248571Smm 3761248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3762168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3763168404Spjd return (-1); 3764168404Spjd } 3765168404Spjd 3766248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3767248571Smm if (recursive) { 3768248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3769248571Smm } else { 3770248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3771168404Spjd } 3772168404Spjd 3773248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3774248571Smm nvlist_free(sd.sd_nvl); 3775168404Spjd zfs_close(zhp); 3776168404Spjd return (ret); 3777168404Spjd} 3778168404Spjd 3779168404Spjd/* 3780168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3781168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3782168404Spjd * is a dependent and we should just destroy it without checking the transaction 3783168404Spjd * group. 3784168404Spjd */ 3785168404Spjdtypedef struct rollback_data { 3786168404Spjd const char *cb_target; /* the snapshot */ 3787168404Spjd uint64_t cb_create; /* creation time reference */ 3788185029Spjd boolean_t cb_error; 3789185029Spjd boolean_t cb_force; 3790168404Spjd} rollback_data_t; 3791168404Spjd 3792168404Spjdstatic int 3793260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 3794168404Spjd{ 3795168404Spjd rollback_data_t *cbp = data; 3796260183Sdelphij prop_changelist_t *clp; 3797168404Spjd 3798260183Sdelphij /* We must destroy this clone; first unmount it */ 3799260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3800260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 3801260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 3802260183Sdelphij cbp->cb_error = B_TRUE; 3803260183Sdelphij zfs_close(zhp); 3804260183Sdelphij return (0); 3805260183Sdelphij } 3806260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 3807260183Sdelphij cbp->cb_error = B_TRUE; 3808260183Sdelphij else 3809260183Sdelphij changelist_remove(clp, zhp->zfs_name); 3810260183Sdelphij (void) changelist_postfix(clp); 3811260183Sdelphij changelist_free(clp); 3812168404Spjd 3813260183Sdelphij zfs_close(zhp); 3814260183Sdelphij return (0); 3815260183Sdelphij} 3816168404Spjd 3817260183Sdelphijstatic int 3818260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 3819260183Sdelphij{ 3820260183Sdelphij rollback_data_t *cbp = data; 3821185029Spjd 3822260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3823260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3824260183Sdelphij rollback_destroy_dependent, cbp); 3825260183Sdelphij 3826260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3827168404Spjd } 3828168404Spjd 3829168404Spjd zfs_close(zhp); 3830168404Spjd return (0); 3831168404Spjd} 3832168404Spjd 3833168404Spjd/* 3834168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3835168404Spjd * data changes since then and making it the active dataset. 3836168404Spjd * 3837260183Sdelphij * Any snapshots and bookmarks more recent than the target are 3838260183Sdelphij * destroyed, along with their dependents (i.e. clones). 3839168404Spjd */ 3840168404Spjdint 3841185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3842168404Spjd{ 3843168404Spjd rollback_data_t cb = { 0 }; 3844185029Spjd int err; 3845185029Spjd boolean_t restore_resv = 0; 3846307107Smav uint64_t old_volsize = 0, new_volsize; 3847185029Spjd zfs_prop_t resv_prop; 3848168404Spjd 3849185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3850185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3851168404Spjd 3852168404Spjd /* 3853239774Smm * Destroy all recent snapshots and their dependents. 3854168404Spjd */ 3855185029Spjd cb.cb_force = force; 3856168404Spjd cb.cb_target = snap->zfs_name; 3857168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3858260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 3859260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 3860168404Spjd 3861185029Spjd if (cb.cb_error) 3862185029Spjd return (-1); 3863168404Spjd 3864168404Spjd /* 3865168404Spjd * Now that we have verified that the snapshot is the latest, 3866168404Spjd * rollback to the given snapshot. 3867168404Spjd */ 3868168404Spjd 3869185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3870185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3871185029Spjd return (-1); 3872185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3873185029Spjd restore_resv = 3874185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3875168404Spjd } 3876168404Spjd 3877168404Spjd /* 3878185029Spjd * We rely on zfs_iter_children() to verify that there are no 3879185029Spjd * newer snapshots for the given dataset. Therefore, we can 3880185029Spjd * simply pass the name on to the ioctl() call. There is still 3881185029Spjd * an unlikely race condition where the user has taken a 3882185029Spjd * snapshot since we verified that this was the most recent. 3883168404Spjd */ 3884254587Sdelphij err = lzc_rollback(zhp->zfs_name, NULL, 0); 3885254587Sdelphij if (err != 0) { 3886185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3887185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3888185029Spjd zhp->zfs_name); 3889185029Spjd return (err); 3890185029Spjd } 3891168404Spjd 3892185029Spjd /* 3893185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3894185029Spjd * rollback reservation and the volsize has changed then set 3895185029Spjd * the reservation property to the post-rollback volsize. 3896185029Spjd * Make a new handle since the rollback closed the dataset. 3897185029Spjd */ 3898185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3899185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3900185029Spjd if (restore_resv) { 3901185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3902185029Spjd if (old_volsize != new_volsize) 3903185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3904185029Spjd new_volsize); 3905185029Spjd } 3906185029Spjd zfs_close(zhp); 3907185029Spjd } 3908185029Spjd return (err); 3909168404Spjd} 3910168404Spjd 3911168404Spjd/* 3912168404Spjd * Renames the given dataset. 3913168404Spjd */ 3914168404Spjdint 3915240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3916240870Spjd renameflags_t flags) 3917168404Spjd{ 3918307050Smav int ret = 0; 3919168404Spjd zfs_cmd_t zc = { 0 }; 3920168404Spjd char *delim; 3921168676Spjd prop_changelist_t *cl = NULL; 3922168676Spjd zfs_handle_t *zhrp = NULL; 3923168676Spjd char *parentname = NULL; 3924307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3925226676Spjd char property[ZFS_MAXPROPLEN]; 3926168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3927168404Spjd char errbuf[1024]; 3928168404Spjd 3929168404Spjd /* if we have the same exact name, just return success */ 3930168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3931168404Spjd return (0); 3932168404Spjd 3933168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3934168404Spjd "cannot rename to '%s'"), target); 3935168404Spjd 3936240870Spjd if (source != NULL) { 3937240870Spjd /* 3938240870Spjd * This is recursive snapshots rename, put snapshot name 3939240870Spjd * (that might not exist) into zfs_name. 3940240870Spjd */ 3941240870Spjd assert(flags.recurse); 3942240870Spjd 3943240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3944240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3945240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3946240870Spjd } 3947240870Spjd 3948168404Spjd /* 3949168404Spjd * Make sure the target name is valid 3950168404Spjd */ 3951168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3952168404Spjd if ((strchr(target, '@') == NULL) || 3953168404Spjd *target == '@') { 3954168404Spjd /* 3955168404Spjd * Snapshot target name is abbreviated, 3956168404Spjd * reconstruct full dataset name 3957168404Spjd */ 3958168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3959168404Spjd sizeof (parent)); 3960168404Spjd delim = strchr(parent, '@'); 3961168404Spjd if (strchr(target, '@') == NULL) 3962168404Spjd *(++delim) = '\0'; 3963168404Spjd else 3964168404Spjd *delim = '\0'; 3965168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3966168404Spjd target = parent; 3967168404Spjd } else { 3968168404Spjd /* 3969168404Spjd * Make sure we're renaming within the same dataset. 3970168404Spjd */ 3971168404Spjd delim = strchr(target, '@'); 3972168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3973168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3974168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3975168404Spjd "snapshots must be part of same " 3976168404Spjd "dataset")); 3977168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3978168404Spjd errbuf)); 3979168404Spjd } 3980168404Spjd } 3981185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3982168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3983168404Spjd } else { 3984226705Spjd if (flags.recurse) { 3985168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3986168676Spjd "recursive rename must be a snapshot")); 3987168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3988168676Spjd } 3989168676Spjd 3990185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3991168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3992168404Spjd 3993168404Spjd /* validate parents */ 3994219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3995168404Spjd return (-1); 3996168404Spjd 3997168404Spjd /* make sure we're in the same pool */ 3998168404Spjd verify((delim = strchr(target, '/')) != NULL); 3999168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 4000168404Spjd zhp->zfs_name[delim - target] != '/') { 4001168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4002168404Spjd "datasets must be within same pool")); 4003168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 4004168404Spjd } 4005168404Spjd 4006168404Spjd /* new name cannot be a child of the current dataset name */ 4007219089Spjd if (is_descendant(zhp->zfs_name, target)) { 4008168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4009219089Spjd "New dataset name cannot be a descendant of " 4010168404Spjd "current dataset name")); 4011168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4012168404Spjd } 4013168404Spjd } 4014168404Spjd 4015168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4016168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 4017168404Spjd 4018168404Spjd if (getzoneid() == GLOBAL_ZONEID && 4019168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 4020168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4021168404Spjd "dataset is used in a non-global zone")); 4022168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 4023168404Spjd } 4024168404Spjd 4025226705Spjd /* 4026226705Spjd * Avoid unmounting file systems with mountpoint property set to 4027226705Spjd * 'legacy' or 'none' even if -u option is not given. 4028226705Spjd */ 4029226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 4030226705Spjd !flags.recurse && !flags.nounmount && 4031226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 4032226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 4033226705Spjd (strcmp(property, "legacy") == 0 || 4034226705Spjd strcmp(property, "none") == 0)) { 4035226705Spjd flags.nounmount = B_TRUE; 4036226705Spjd } 4037226705Spjd if (flags.recurse) { 4038226705Spjd 4039185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 4040185029Spjd if (parentname == NULL) { 4041185029Spjd ret = -1; 4042185029Spjd goto error; 4043185029Spjd } 4044168676Spjd delim = strchr(parentname, '@'); 4045168676Spjd *delim = '\0'; 4046185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 4047168676Spjd if (zhrp == NULL) { 4048185029Spjd ret = -1; 4049185029Spjd goto error; 4050168676Spjd } 4051268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 4052226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 4053235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 4054235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 4055168676Spjd return (-1); 4056226676Spjd } 4057168676Spjd 4058168676Spjd if (changelist_haszonedchild(cl)) { 4059168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4060168676Spjd "child dataset with inherited mountpoint is used " 4061168676Spjd "in a non-global zone")); 4062168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 4063307107Smav ret = -1; 4064168676Spjd goto error; 4065168676Spjd } 4066168676Spjd 4067168676Spjd if ((ret = changelist_prefix(cl)) != 0) 4068168676Spjd goto error; 4069168404Spjd } 4070168404Spjd 4071168404Spjd if (ZFS_IS_VOLUME(zhp)) 4072168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 4073168404Spjd else 4074168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4075168404Spjd 4076168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4077168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 4078168404Spjd 4079226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 4080226705Spjd if (flags.nounmount) 4081226676Spjd zc.zc_cookie |= 2; 4082168676Spjd 4083185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 4084168676Spjd /* 4085168676Spjd * if it was recursive, the one that actually failed will 4086168676Spjd * be in zc.zc_name 4087168676Spjd */ 4088168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4089185029Spjd "cannot rename '%s'"), zc.zc_name); 4090168404Spjd 4091226705Spjd if (flags.recurse && errno == EEXIST) { 4092168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4093168676Spjd "a child dataset already has a snapshot " 4094168676Spjd "with the new name")); 4095185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4096168676Spjd } else { 4097168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 4098168676Spjd } 4099168676Spjd 4100168404Spjd /* 4101168404Spjd * On failure, we still want to remount any filesystems that 4102168404Spjd * were previously mounted, so we don't alter the system state. 4103168404Spjd */ 4104268469Sdelphij if (cl != NULL) 4105168676Spjd (void) changelist_postfix(cl); 4106168404Spjd } else { 4107268469Sdelphij if (cl != NULL) { 4108168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 4109168676Spjd ret = changelist_postfix(cl); 4110168676Spjd } 4111168404Spjd } 4112168404Spjd 4113168404Spjderror: 4114268469Sdelphij if (parentname != NULL) { 4115168676Spjd free(parentname); 4116168676Spjd } 4117268469Sdelphij if (zhrp != NULL) { 4118168676Spjd zfs_close(zhrp); 4119168676Spjd } 4120268469Sdelphij if (cl != NULL) { 4121168676Spjd changelist_free(cl); 4122168676Spjd } 4123168404Spjd return (ret); 4124168404Spjd} 4125168404Spjd 4126219089Spjdnvlist_t * 4127219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4128168404Spjd{ 4129219089Spjd return (zhp->zfs_user_props); 4130168676Spjd} 4131168676Spjd 4132168404Spjdnvlist_t * 4133219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4134168404Spjd{ 4135219089Spjd if (zhp->zfs_recvd_props == NULL) 4136219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4137219089Spjd return (NULL); 4138219089Spjd return (zhp->zfs_recvd_props); 4139168404Spjd} 4140168404Spjd 4141168404Spjd/* 4142168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4143168404Spjd * display, and their maximum widths. This does two main things: 4144168404Spjd * 4145168404Spjd * - If this is a list of all properties, then expand the list to include 4146168404Spjd * all native properties, and set a flag so that for each dataset we look 4147168404Spjd * for new unique user properties and add them to the list. 4148168404Spjd * 4149168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4150219089Spjd * so that we can size the column appropriately. If the user has 4151219089Spjd * requested received property values, we also need to compute the width 4152219089Spjd * of the RECEIVED column. 4153168404Spjd */ 4154168404Spjdint 4155259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4156259850Sdelphij boolean_t literal) 4157168404Spjd{ 4158168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4159185029Spjd zprop_list_t *entry; 4160185029Spjd zprop_list_t **last, **start; 4161168404Spjd nvlist_t *userprops, *propval; 4162168404Spjd nvpair_t *elem; 4163168404Spjd char *strval; 4164168404Spjd char buf[ZFS_MAXPROPLEN]; 4165168404Spjd 4166185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4167168404Spjd return (-1); 4168168404Spjd 4169168404Spjd userprops = zfs_get_user_props(zhp); 4170168404Spjd 4171168404Spjd entry = *plp; 4172168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4173168404Spjd /* 4174168404Spjd * Go through and add any user properties as necessary. We 4175168404Spjd * start by incrementing our list pointer to the first 4176168404Spjd * non-native property. 4177168404Spjd */ 4178168404Spjd start = plp; 4179168404Spjd while (*start != NULL) { 4180185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4181168404Spjd break; 4182168404Spjd start = &(*start)->pl_next; 4183168404Spjd } 4184168404Spjd 4185168404Spjd elem = NULL; 4186168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4187168404Spjd /* 4188168404Spjd * See if we've already found this property in our list. 4189168404Spjd */ 4190168404Spjd for (last = start; *last != NULL; 4191168404Spjd last = &(*last)->pl_next) { 4192168404Spjd if (strcmp((*last)->pl_user_prop, 4193168404Spjd nvpair_name(elem)) == 0) 4194168404Spjd break; 4195168404Spjd } 4196168404Spjd 4197168404Spjd if (*last == NULL) { 4198168404Spjd if ((entry = zfs_alloc(hdl, 4199185029Spjd sizeof (zprop_list_t))) == NULL || 4200168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4201168404Spjd nvpair_name(elem)))) == NULL) { 4202168404Spjd free(entry); 4203168404Spjd return (-1); 4204168404Spjd } 4205168404Spjd 4206185029Spjd entry->pl_prop = ZPROP_INVAL; 4207168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4208168404Spjd entry->pl_all = B_TRUE; 4209168404Spjd *last = entry; 4210168404Spjd } 4211168404Spjd } 4212168404Spjd } 4213168404Spjd 4214168404Spjd /* 4215168404Spjd * Now go through and check the width of any non-fixed columns 4216168404Spjd */ 4217168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4218259850Sdelphij if (entry->pl_fixed && !literal) 4219168404Spjd continue; 4220168404Spjd 4221185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4222168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4223259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4224168404Spjd if (strlen(buf) > entry->pl_width) 4225168404Spjd entry->pl_width = strlen(buf); 4226168404Spjd } 4227219089Spjd if (received && zfs_prop_get_recvd(zhp, 4228219089Spjd zfs_prop_to_name(entry->pl_prop), 4229259850Sdelphij buf, sizeof (buf), literal) == 0) 4230219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4231219089Spjd entry->pl_recvd_width = strlen(buf); 4232219089Spjd } else { 4233219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4234219089Spjd &propval) == 0) { 4235219089Spjd verify(nvlist_lookup_string(propval, 4236219089Spjd ZPROP_VALUE, &strval) == 0); 4237219089Spjd if (strlen(strval) > entry->pl_width) 4238219089Spjd entry->pl_width = strlen(strval); 4239219089Spjd } 4240219089Spjd if (received && zfs_prop_get_recvd(zhp, 4241219089Spjd entry->pl_user_prop, 4242259850Sdelphij buf, sizeof (buf), literal) == 0) 4243219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4244219089Spjd entry->pl_recvd_width = strlen(buf); 4245168404Spjd } 4246168404Spjd } 4247168404Spjd 4248168404Spjd return (0); 4249168404Spjd} 4250168404Spjd 4251185029Spjdint 4252185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4253209962Smm char *resource, void *export, void *sharetab, 4254209962Smm int sharemax, zfs_share_op_t operation) 4255185029Spjd{ 4256185029Spjd zfs_cmd_t zc = { 0 }; 4257185029Spjd int error; 4258185029Spjd 4259185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4260185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4261209962Smm if (resource) 4262209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4263185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4264185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4265185029Spjd zc.zc_share.z_sharetype = operation; 4266185029Spjd zc.zc_share.z_sharemax = sharemax; 4267185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4268185029Spjd return (error); 4269185029Spjd} 4270185029Spjd 4271205198Sdelphijvoid 4272205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4273205198Sdelphij{ 4274205198Sdelphij nvpair_t *curr; 4275205198Sdelphij 4276205198Sdelphij /* 4277205198Sdelphij * Keep a reference to the props-table against which we prune the 4278205198Sdelphij * properties. 4279205198Sdelphij */ 4280205198Sdelphij zhp->zfs_props_table = props; 4281205198Sdelphij 4282205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4283205198Sdelphij 4284205198Sdelphij while (curr) { 4285205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4286205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4287205198Sdelphij 4288206199Sdelphij /* 4289219089Spjd * User properties will result in ZPROP_INVAL, and since we 4290219089Spjd * only know how to prune standard ZFS properties, we always 4291219089Spjd * leave these in the list. This can also happen if we 4292219089Spjd * encounter an unknown DSL property (when running older 4293219089Spjd * software, for example). 4294206199Sdelphij */ 4295206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4296205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4297205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4298205198Sdelphij curr = next; 4299205198Sdelphij } 4300205198Sdelphij} 4301205198Sdelphij 4302277300Ssmh#ifdef illumos 4303209962Smmstatic int 4304209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4305209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4306209962Smm{ 4307209962Smm zfs_cmd_t zc = { 0 }; 4308209962Smm nvlist_t *nvlist = NULL; 4309209962Smm int error; 4310209962Smm 4311209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4312209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4313209962Smm zc.zc_cookie = (uint64_t)cmd; 4314209962Smm 4315209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4316209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4317209962Smm (void) no_memory(hdl); 4318289497Smav return (0); 4319209962Smm } 4320209962Smm } 4321209962Smm 4322209962Smm switch (cmd) { 4323209962Smm case ZFS_SMB_ACL_ADD: 4324209962Smm case ZFS_SMB_ACL_REMOVE: 4325209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4326209962Smm break; 4327209962Smm case ZFS_SMB_ACL_RENAME: 4328209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4329209962Smm resource1) != 0) { 4330209962Smm (void) no_memory(hdl); 4331209962Smm return (-1); 4332209962Smm } 4333209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4334209962Smm resource2) != 0) { 4335209962Smm (void) no_memory(hdl); 4336209962Smm return (-1); 4337209962Smm } 4338209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4339209962Smm nvlist_free(nvlist); 4340209962Smm return (-1); 4341209962Smm } 4342209962Smm break; 4343209962Smm case ZFS_SMB_ACL_PURGE: 4344209962Smm break; 4345209962Smm default: 4346209962Smm return (-1); 4347209962Smm } 4348209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4349296528Smav nvlist_free(nvlist); 4350209962Smm return (error); 4351209962Smm} 4352209962Smm 4353209962Smmint 4354209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4355209962Smm char *path, char *resource) 4356209962Smm{ 4357209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4358209962Smm resource, NULL)); 4359209962Smm} 4360209962Smm 4361209962Smmint 4362209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4363209962Smm char *path, char *resource) 4364209962Smm{ 4365209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4366209962Smm resource, NULL)); 4367209962Smm} 4368209962Smm 4369209962Smmint 4370209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4371209962Smm{ 4372209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4373209962Smm NULL, NULL)); 4374209962Smm} 4375209962Smm 4376209962Smmint 4377209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4378209962Smm char *oldname, char *newname) 4379209962Smm{ 4380209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4381209962Smm oldname, newname)); 4382209962Smm} 4383277300Ssmh#endif /* illumos */ 4384209962Smm 4385209962Smmint 4386209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4387209962Smm zfs_userspace_cb_t func, void *arg) 4388209962Smm{ 4389209962Smm zfs_cmd_t zc = { 0 }; 4390209962Smm zfs_useracct_t buf[100]; 4391240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4392240415Smm int ret; 4393209962Smm 4394228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4395209962Smm 4396209962Smm zc.zc_objset_type = type; 4397209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4398209962Smm 4399240415Smm for (;;) { 4400209962Smm zfs_useracct_t *zua = buf; 4401209962Smm 4402209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4403240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4404248571Smm char errbuf[1024]; 4405240415Smm 4406240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4407240415Smm dgettext(TEXT_DOMAIN, 4408240415Smm "cannot get used/quota for %s"), zc.zc_name); 4409240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4410240415Smm } 4411240415Smm if (zc.zc_nvlist_dst_size == 0) 4412209962Smm break; 4413209962Smm 4414209962Smm while (zc.zc_nvlist_dst_size > 0) { 4415240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4416240415Smm zua->zu_space)) != 0) 4417240415Smm return (ret); 4418209962Smm zua++; 4419209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4420209962Smm } 4421209962Smm } 4422209962Smm 4423240415Smm return (0); 4424209962Smm} 4425209962Smm 4426248571Smmstruct holdarg { 4427248571Smm nvlist_t *nvl; 4428248571Smm const char *snapname; 4429248571Smm const char *tag; 4430248571Smm boolean_t recursive; 4431252219Sdelphij int error; 4432248571Smm}; 4433248571Smm 4434248571Smmstatic int 4435248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4436248571Smm{ 4437248571Smm struct holdarg *ha = arg; 4438307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 4439248571Smm int rv = 0; 4440248571Smm 4441248571Smm (void) snprintf(name, sizeof (name), 4442248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4443248571Smm 4444251646Sdelphij if (lzc_exists(name)) 4445248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4446248571Smm 4447248571Smm if (ha->recursive) 4448248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4449248571Smm zfs_close(zhp); 4450248571Smm return (rv); 4451248571Smm} 4452248571Smm 4453219089Spjdint 4454219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4455251646Sdelphij boolean_t recursive, int cleanup_fd) 4456219089Spjd{ 4457248571Smm int ret; 4458248571Smm struct holdarg ha; 4459219089Spjd 4460248571Smm ha.nvl = fnvlist_alloc(); 4461248571Smm ha.snapname = snapname; 4462248571Smm ha.tag = tag; 4463248571Smm ha.recursive = recursive; 4464248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4465249357Smm 4466251646Sdelphij if (nvlist_empty(ha.nvl)) { 4467251646Sdelphij char errbuf[1024]; 4468251646Sdelphij 4469249357Smm fnvlist_free(ha.nvl); 4470249357Smm ret = ENOENT; 4471251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4472251646Sdelphij dgettext(TEXT_DOMAIN, 4473251646Sdelphij "cannot hold snapshot '%s@%s'"), 4474251646Sdelphij zhp->zfs_name, snapname); 4475251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4476249357Smm return (ret); 4477249357Smm } 4478249357Smm 4479251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4480248571Smm fnvlist_free(ha.nvl); 4481219089Spjd 4482251646Sdelphij return (ret); 4483251646Sdelphij} 4484251646Sdelphij 4485251646Sdelphijint 4486251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4487251646Sdelphij{ 4488251646Sdelphij int ret; 4489251646Sdelphij nvlist_t *errors; 4490251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4491251646Sdelphij char errbuf[1024]; 4492251646Sdelphij nvpair_t *elem; 4493251646Sdelphij 4494251646Sdelphij errors = NULL; 4495251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4496251646Sdelphij 4497251646Sdelphij if (ret == 0) { 4498251646Sdelphij /* There may be errors even in the success case. */ 4499251646Sdelphij fnvlist_free(errors); 4500248571Smm return (0); 4501251646Sdelphij } 4502219089Spjd 4503251646Sdelphij if (nvlist_empty(errors)) { 4504248571Smm /* no hold-specific errors */ 4505248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4506248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4507248571Smm switch (ret) { 4508248571Smm case ENOTSUP: 4509248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4510248571Smm "pool must be upgraded")); 4511248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4512248571Smm break; 4513248571Smm case EINVAL: 4514248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4515248571Smm break; 4516248571Smm default: 4517248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4518248571Smm } 4519248571Smm } 4520219089Spjd 4521248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4522248571Smm elem != NULL; 4523248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4524248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4525248571Smm dgettext(TEXT_DOMAIN, 4526248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4527248571Smm switch (fnvpair_value_int32(elem)) { 4528219089Spjd case E2BIG: 4529219089Spjd /* 4530219089Spjd * Temporary tags wind up having the ds object id 4531219089Spjd * prepended. So even if we passed the length check 4532219089Spjd * above, it's still possible for the tag to wind 4533219089Spjd * up being slightly too long. 4534219089Spjd */ 4535248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4536248571Smm break; 4537219089Spjd case EINVAL: 4538248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4539248571Smm break; 4540219089Spjd case EEXIST: 4541248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4542248571Smm break; 4543219089Spjd default: 4544248571Smm (void) zfs_standard_error(hdl, 4545248571Smm fnvpair_value_int32(elem), errbuf); 4546219089Spjd } 4547219089Spjd } 4548219089Spjd 4549248571Smm fnvlist_free(errors); 4550248571Smm return (ret); 4551219089Spjd} 4552219089Spjd 4553248571Smmstatic int 4554248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4555248571Smm{ 4556248571Smm struct holdarg *ha = arg; 4557307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 4558248571Smm int rv = 0; 4559252219Sdelphij nvlist_t *existing_holds; 4560248571Smm 4561248571Smm (void) snprintf(name, sizeof (name), 4562248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4563248571Smm 4564252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4565252219Sdelphij ha->error = ENOENT; 4566252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4567252219Sdelphij ha->error = ESRCH; 4568252219Sdelphij } else { 4569252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4570252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4571252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4572252219Sdelphij fnvlist_free(torelease); 4573248571Smm } 4574248571Smm 4575248571Smm if (ha->recursive) 4576248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4577248571Smm zfs_close(zhp); 4578248571Smm return (rv); 4579248571Smm} 4580248571Smm 4581219089Spjdint 4582219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4583219089Spjd boolean_t recursive) 4584219089Spjd{ 4585248571Smm int ret; 4586248571Smm struct holdarg ha; 4587251646Sdelphij nvlist_t *errors = NULL; 4588248571Smm nvpair_t *elem; 4589219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4590249357Smm char errbuf[1024]; 4591219089Spjd 4592248571Smm ha.nvl = fnvlist_alloc(); 4593248571Smm ha.snapname = snapname; 4594248571Smm ha.tag = tag; 4595248571Smm ha.recursive = recursive; 4596252219Sdelphij ha.error = 0; 4597248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4598249357Smm 4599251646Sdelphij if (nvlist_empty(ha.nvl)) { 4600249357Smm fnvlist_free(ha.nvl); 4601252219Sdelphij ret = ha.error; 4602249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4603249357Smm dgettext(TEXT_DOMAIN, 4604249357Smm "cannot release hold from snapshot '%s@%s'"), 4605249357Smm zhp->zfs_name, snapname); 4606252219Sdelphij if (ret == ESRCH) { 4607252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4608252219Sdelphij } else { 4609252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4610252219Sdelphij } 4611249357Smm return (ret); 4612249357Smm } 4613249357Smm 4614248571Smm ret = lzc_release(ha.nvl, &errors); 4615248571Smm fnvlist_free(ha.nvl); 4616219089Spjd 4617251646Sdelphij if (ret == 0) { 4618251646Sdelphij /* There may be errors even in the success case. */ 4619251646Sdelphij fnvlist_free(errors); 4620248571Smm return (0); 4621251646Sdelphij } 4622219089Spjd 4623251646Sdelphij if (nvlist_empty(errors)) { 4624248571Smm /* no hold-specific errors */ 4625219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4626248571Smm "cannot release")); 4627219089Spjd switch (errno) { 4628219089Spjd case ENOTSUP: 4629219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4630219089Spjd "pool must be upgraded")); 4631248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4632248571Smm break; 4633248571Smm default: 4634248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4635248571Smm } 4636248571Smm } 4637248571Smm 4638248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4639248571Smm elem != NULL; 4640248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4641248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4642248571Smm dgettext(TEXT_DOMAIN, 4643248571Smm "cannot release hold from snapshot '%s'"), 4644248571Smm nvpair_name(elem)); 4645248571Smm switch (fnvpair_value_int32(elem)) { 4646248571Smm case ESRCH: 4647248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4648248571Smm break; 4649219089Spjd case EINVAL: 4650248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4651248571Smm break; 4652219089Spjd default: 4653248571Smm (void) zfs_standard_error_fmt(hdl, 4654248571Smm fnvpair_value_int32(elem), errbuf); 4655219089Spjd } 4656219089Spjd } 4657219089Spjd 4658248571Smm fnvlist_free(errors); 4659248571Smm return (ret); 4660219089Spjd} 4661219089Spjd 4662219089Spjdint 4663219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4664219089Spjd{ 4665219089Spjd zfs_cmd_t zc = { 0 }; 4666219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4667219089Spjd int nvsz = 2048; 4668219089Spjd void *nvbuf; 4669219089Spjd int err = 0; 4670248571Smm char errbuf[1024]; 4671219089Spjd 4672219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4673219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4674219089Spjd 4675219089Spjdtryagain: 4676219089Spjd 4677219089Spjd nvbuf = malloc(nvsz); 4678219089Spjd if (nvbuf == NULL) { 4679219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4680219089Spjd goto out; 4681219089Spjd } 4682219089Spjd 4683219089Spjd zc.zc_nvlist_dst_size = nvsz; 4684219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4685219089Spjd 4686307108Smav (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4687219089Spjd 4688230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4689219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4690219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4691219089Spjd zc.zc_name); 4692219089Spjd switch (errno) { 4693219089Spjd case ENOMEM: 4694219089Spjd free(nvbuf); 4695219089Spjd nvsz = zc.zc_nvlist_dst_size; 4696219089Spjd goto tryagain; 4697219089Spjd 4698219089Spjd case ENOTSUP: 4699219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4700219089Spjd "pool must be upgraded")); 4701219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4702219089Spjd break; 4703219089Spjd case EINVAL: 4704219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4705219089Spjd break; 4706219089Spjd case ENOENT: 4707219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4708219089Spjd break; 4709219089Spjd default: 4710219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4711219089Spjd break; 4712219089Spjd } 4713219089Spjd } else { 4714219089Spjd /* success */ 4715219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4716219089Spjd if (rc) { 4717219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4718219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4719219089Spjd zc.zc_name); 4720219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4721219089Spjd } 4722219089Spjd } 4723219089Spjd 4724219089Spjd free(nvbuf); 4725219089Spjdout: 4726219089Spjd return (err); 4727219089Spjd} 4728219089Spjd 4729219089Spjdint 4730219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4731219089Spjd{ 4732219089Spjd zfs_cmd_t zc = { 0 }; 4733219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4734219089Spjd char *nvbuf; 4735248571Smm char errbuf[1024]; 4736219089Spjd size_t nvsz; 4737219089Spjd int err; 4738219089Spjd 4739219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4740219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4741219089Spjd 4742219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4743219089Spjd assert(err == 0); 4744219089Spjd 4745219089Spjd nvbuf = malloc(nvsz); 4746219089Spjd 4747219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4748219089Spjd assert(err == 0); 4749219089Spjd 4750219089Spjd zc.zc_nvlist_src_size = nvsz; 4751219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4752219089Spjd zc.zc_perm_action = un; 4753219089Spjd 4754219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4755219089Spjd 4756219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4757219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4758219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4759219089Spjd zc.zc_name); 4760219089Spjd switch (errno) { 4761219089Spjd case ENOTSUP: 4762219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4763219089Spjd "pool must be upgraded")); 4764219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4765219089Spjd break; 4766219089Spjd case EINVAL: 4767219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4768219089Spjd break; 4769219089Spjd case ENOENT: 4770219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4771219089Spjd break; 4772219089Spjd default: 4773219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4774219089Spjd break; 4775219089Spjd } 4776219089Spjd } 4777219089Spjd 4778219089Spjd free(nvbuf); 4779219089Spjd 4780219089Spjd return (err); 4781219089Spjd} 4782219089Spjd 4783219089Spjdint 4784219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4785219089Spjd{ 4786248571Smm int err; 4787248571Smm char errbuf[1024]; 4788219089Spjd 4789248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4790219089Spjd 4791248571Smm if (err != 0) { 4792248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4793219089Spjd 4794219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4795219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4796248571Smm zhp->zfs_name); 4797248571Smm switch (err) { 4798219089Spjd case ENOTSUP: 4799219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4800219089Spjd "pool must be upgraded")); 4801219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4802219089Spjd break; 4803219089Spjd case EINVAL: 4804219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4805219089Spjd break; 4806219089Spjd case ENOENT: 4807219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4808219089Spjd break; 4809219089Spjd default: 4810219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4811219089Spjd break; 4812219089Spjd } 4813219089Spjd } 4814219089Spjd 4815219089Spjd return (err); 4816219089Spjd} 4817219089Spjd 4818251629Sdelphij/* 4819251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4820251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4821251629Sdelphij * suite's shell version in reservation.kshlib. 4822251629Sdelphij */ 4823219089Spjduint64_t 4824219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4825219089Spjd{ 4826219089Spjd uint64_t numdb; 4827219089Spjd uint64_t nblocks, volblocksize; 4828219089Spjd int ncopies; 4829219089Spjd char *strval; 4830219089Spjd 4831219089Spjd if (nvlist_lookup_string(props, 4832219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4833219089Spjd ncopies = atoi(strval); 4834219089Spjd else 4835219089Spjd ncopies = 1; 4836219089Spjd if (nvlist_lookup_uint64(props, 4837219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4838219089Spjd &volblocksize) != 0) 4839219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4840219089Spjd nblocks = volsize/volblocksize; 4841219089Spjd /* start with metadnode L0-L6 */ 4842219089Spjd numdb = 7; 4843219089Spjd /* calculate number of indirects */ 4844219089Spjd while (nblocks > 1) { 4845219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4846219089Spjd nblocks /= DNODES_PER_LEVEL; 4847219089Spjd numdb += nblocks; 4848219089Spjd } 4849219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4850219089Spjd volsize *= ncopies; 4851219089Spjd /* 4852219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4853219089Spjd * compressed, but in practice they compress down to about 4854219089Spjd * 1100 bytes 4855219089Spjd */ 4856219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4857219089Spjd volsize += numdb; 4858219089Spjd return (volsize); 4859219089Spjd} 4860219089Spjd 4861168404Spjd/* 4862168404Spjd * Attach/detach the given filesystem to/from the given jail. 4863168404Spjd */ 4864168404Spjdint 4865168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4866168404Spjd{ 4867168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4868168404Spjd zfs_cmd_t zc = { 0 }; 4869168404Spjd char errbuf[1024]; 4870224525Smm unsigned long cmd; 4871224525Smm int ret; 4872168404Spjd 4873168404Spjd if (attach) { 4874168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4875168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4876168404Spjd } else { 4877168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4878249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4879168404Spjd } 4880168404Spjd 4881168404Spjd switch (zhp->zfs_type) { 4882168404Spjd case ZFS_TYPE_VOLUME: 4883168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4884168404Spjd "volumes can not be jailed")); 4885168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4886168404Spjd case ZFS_TYPE_SNAPSHOT: 4887168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4888168404Spjd "snapshots can not be jailed")); 4889168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4890168404Spjd } 4891168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4892168404Spjd 4893168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4894168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4895168404Spjd zc.zc_jailid = jailid; 4896168404Spjd 4897168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4898168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4899168404Spjd zfs_standard_error(hdl, errno, errbuf); 4900168404Spjd 4901168404Spjd return (ret); 4902168404Spjd} 4903