libzfs_dataset.c revision 289497
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. 25268469Sdelphij * Copyright (c) 2011, 2014 by Delphix. All rights reserved. 26252219Sdelphij * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved. 27230438Spjd * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 28226706Spjd * All rights reserved. 29235216Smm * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 30251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 31259850Sdelphij * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 32168404Spjd */ 33168404Spjd 34168404Spjd#include <ctype.h> 35168404Spjd#include <errno.h> 36168404Spjd#include <libintl.h> 37168404Spjd#include <math.h> 38168404Spjd#include <stdio.h> 39168404Spjd#include <stdlib.h> 40168404Spjd#include <strings.h> 41168404Spjd#include <unistd.h> 42185029Spjd#include <stddef.h> 43168404Spjd#include <zone.h> 44168404Spjd#include <fcntl.h> 45168404Spjd#include <sys/mntent.h> 46168404Spjd#include <sys/mount.h> 47185029Spjd#include <priv.h> 48185029Spjd#include <pwd.h> 49185029Spjd#include <grp.h> 50185029Spjd#include <stddef.h> 51209962Smm#include <idmap.h> 52168404Spjd 53219089Spjd#include <sys/dnode.h> 54168404Spjd#include <sys/spa.h> 55168404Spjd#include <sys/zap.h> 56209962Smm#include <sys/misc.h> 57168404Spjd#include <libzfs.h> 58168404Spjd 59168404Spjd#include "zfs_namecheck.h" 60168404Spjd#include "zfs_prop.h" 61168404Spjd#include "libzfs_impl.h" 62185029Spjd#include "zfs_deleg.h" 63168404Spjd 64209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 65209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 66168676Spjd 67168404Spjd/* 68168404Spjd * Given a single type (not a mask of types), return the type in a human 69168404Spjd * readable form. 70168404Spjd */ 71168404Spjdconst char * 72168404Spjdzfs_type_to_name(zfs_type_t type) 73168404Spjd{ 74168404Spjd switch (type) { 75168404Spjd case ZFS_TYPE_FILESYSTEM: 76168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 77168404Spjd case ZFS_TYPE_SNAPSHOT: 78168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 79168404Spjd case ZFS_TYPE_VOLUME: 80168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 81168404Spjd } 82168404Spjd 83168404Spjd return (NULL); 84168404Spjd} 85168404Spjd 86168404Spjd/* 87168404Spjd * Given a path and mask of ZFS types, return a string describing this dataset. 88168404Spjd * This is used when we fail to open a dataset and we cannot get an exact type. 89168404Spjd * We guess what the type would have been based on the path and the mask of 90168404Spjd * acceptable types. 91168404Spjd */ 92168404Spjdstatic const char * 93168404Spjdpath_to_str(const char *path, int types) 94168404Spjd{ 95168404Spjd /* 96168404Spjd * When given a single type, always report the exact type. 97168404Spjd */ 98168404Spjd if (types == ZFS_TYPE_SNAPSHOT) 99168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 100168404Spjd if (types == ZFS_TYPE_FILESYSTEM) 101168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 102168404Spjd if (types == ZFS_TYPE_VOLUME) 103168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 104168404Spjd 105168404Spjd /* 106168404Spjd * The user is requesting more than one type of dataset. If this is the 107168404Spjd * case, consult the path itself. If we're looking for a snapshot, and 108168404Spjd * a '@' is found, then report it as "snapshot". Otherwise, remove the 109168404Spjd * snapshot attribute and try again. 110168404Spjd */ 111168404Spjd if (types & ZFS_TYPE_SNAPSHOT) { 112168404Spjd if (strchr(path, '@') != NULL) 113168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 114168404Spjd return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); 115168404Spjd } 116168404Spjd 117168404Spjd /* 118168404Spjd * The user has requested either filesystems or volumes. 119168404Spjd * We have no way of knowing a priori what type this would be, so always 120168404Spjd * report it as "filesystem" or "volume", our two primitive types. 121168404Spjd */ 122168404Spjd if (types & ZFS_TYPE_FILESYSTEM) 123168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 124168404Spjd 125168404Spjd assert(types & ZFS_TYPE_VOLUME); 126168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 127168404Spjd} 128168404Spjd 129168404Spjd/* 130168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 131209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 132209962Smm * explain exactly why the name was not valid. 133168404Spjd */ 134219089Spjdint 135185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 136185029Spjd boolean_t modifying) 137168404Spjd{ 138168404Spjd namecheck_err_t why; 139168404Spjd char what; 140168404Spjd 141219089Spjd (void) zfs_prop_get_table(); 142168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 143168404Spjd if (hdl != NULL) { 144168404Spjd switch (why) { 145168404Spjd case NAME_ERR_TOOLONG: 146168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 147168404Spjd "name is too long")); 148168404Spjd break; 149168404Spjd 150168404Spjd case NAME_ERR_LEADING_SLASH: 151168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 152168404Spjd "leading slash in name")); 153168404Spjd break; 154168404Spjd 155168404Spjd case NAME_ERR_EMPTY_COMPONENT: 156168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 157168404Spjd "empty component in name")); 158168404Spjd break; 159168404Spjd 160168404Spjd case NAME_ERR_TRAILING_SLASH: 161168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 162168404Spjd "trailing slash in name")); 163168404Spjd break; 164168404Spjd 165168404Spjd case NAME_ERR_INVALCHAR: 166168404Spjd zfs_error_aux(hdl, 167168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 168168404Spjd "'%c' in name"), what); 169168404Spjd break; 170168404Spjd 171168404Spjd case NAME_ERR_MULTIPLE_AT: 172168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 173168404Spjd "multiple '@' delimiters in name")); 174168404Spjd break; 175168404Spjd 176168404Spjd case NAME_ERR_NOLETTER: 177168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 178168404Spjd "pool doesn't begin with a letter")); 179168404Spjd break; 180168404Spjd 181168404Spjd case NAME_ERR_RESERVED: 182168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 183168404Spjd "name is reserved")); 184168404Spjd break; 185168404Spjd 186168404Spjd case NAME_ERR_DISKLIKE: 187168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 188168404Spjd "reserved disk name")); 189168404Spjd break; 190168404Spjd } 191168404Spjd } 192168404Spjd 193168404Spjd return (0); 194168404Spjd } 195168404Spjd 196168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 197168404Spjd if (hdl != NULL) 198168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 199168404Spjd "snapshot delimiter '@' in filesystem name")); 200168404Spjd return (0); 201168404Spjd } 202168404Spjd 203168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 204168404Spjd if (hdl != NULL) 205168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 206168404Spjd "missing '@' delimiter in snapshot name")); 207168404Spjd return (0); 208168404Spjd } 209168404Spjd 210185029Spjd if (modifying && strchr(path, '%') != NULL) { 211185029Spjd if (hdl != NULL) 212185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 213185029Spjd "invalid character %c in name"), '%'); 214185029Spjd return (0); 215185029Spjd } 216185029Spjd 217168404Spjd return (-1); 218168404Spjd} 219168404Spjd 220168404Spjdint 221168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 222168404Spjd{ 223185029Spjd if (type == ZFS_TYPE_POOL) 224185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 225185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 226168404Spjd} 227168404Spjd 228168404Spjd/* 229168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 230168404Spjd * properties into a separate nvlist. 231168404Spjd */ 232185029Spjdstatic nvlist_t * 233185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 234168404Spjd{ 235168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 236168404Spjd nvpair_t *elem; 237168404Spjd nvlist_t *propval; 238185029Spjd nvlist_t *nvl; 239168404Spjd 240185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 241185029Spjd (void) no_memory(hdl); 242185029Spjd return (NULL); 243185029Spjd } 244168404Spjd 245168404Spjd elem = NULL; 246185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 247168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 248168404Spjd continue; 249168404Spjd 250168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 251185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 252185029Spjd nvlist_free(nvl); 253185029Spjd (void) no_memory(hdl); 254185029Spjd return (NULL); 255185029Spjd } 256168404Spjd } 257168404Spjd 258185029Spjd return (nvl); 259168404Spjd} 260168404Spjd 261185029Spjdstatic zpool_handle_t * 262185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 263185029Spjd{ 264185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 265185029Spjd zpool_handle_t *zph; 266185029Spjd 267185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 268185029Spjd if (hdl->libzfs_pool_handles != NULL) 269185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 270185029Spjd hdl->libzfs_pool_handles = zph; 271185029Spjd } 272185029Spjd return (zph); 273185029Spjd} 274185029Spjd 275185029Spjdstatic zpool_handle_t * 276185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 277185029Spjd{ 278185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 279185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 280185029Spjd 281185029Spjd while ((zph != NULL) && 282185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 283185029Spjd zph = zph->zpool_next; 284185029Spjd return (zph); 285185029Spjd} 286185029Spjd 287168404Spjd/* 288185029Spjd * Returns a handle to the pool that contains the provided dataset. 289185029Spjd * If a handle to that pool already exists then that handle is returned. 290185029Spjd * Otherwise, a new handle is created and added to the list of handles. 291185029Spjd */ 292185029Spjdstatic zpool_handle_t * 293185029Spjdzpool_handle(zfs_handle_t *zhp) 294185029Spjd{ 295185029Spjd char *pool_name; 296185029Spjd int len; 297185029Spjd zpool_handle_t *zph; 298185029Spjd 299260183Sdelphij len = strcspn(zhp->zfs_name, "/@#") + 1; 300185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 301185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 302185029Spjd 303185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 304185029Spjd if (zph == NULL) 305185029Spjd zph = zpool_add_handle(zhp, pool_name); 306185029Spjd 307185029Spjd free(pool_name); 308185029Spjd return (zph); 309185029Spjd} 310185029Spjd 311185029Spjdvoid 312185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 313185029Spjd{ 314185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 315185029Spjd 316185029Spjd while (zph != NULL) { 317185029Spjd next = zph->zpool_next; 318185029Spjd zpool_close(zph); 319185029Spjd zph = next; 320185029Spjd } 321185029Spjd hdl->libzfs_pool_handles = NULL; 322185029Spjd} 323185029Spjd 324185029Spjd/* 325168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 326168404Spjd */ 327219089Spjdstatic int 328209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 329168404Spjd{ 330168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 331168404Spjd 332209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 333168404Spjd 334209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 335168404Spjd if (errno == ENOMEM) { 336209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 337168404Spjd return (-1); 338168404Spjd } 339168404Spjd } else { 340168404Spjd return (-1); 341168404Spjd } 342168404Spjd } 343209962Smm return (0); 344209962Smm} 345168404Spjd 346219089Spjd/* 347219089Spjd * Utility function to get the received properties of the given object. 348219089Spjd */ 349209962Smmstatic int 350219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 351219089Spjd{ 352219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 353219089Spjd nvlist_t *recvdprops; 354219089Spjd zfs_cmd_t zc = { 0 }; 355219089Spjd int err; 356219089Spjd 357219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 358219089Spjd return (-1); 359219089Spjd 360219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 361219089Spjd 362219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 363219089Spjd if (errno == ENOMEM) { 364219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 365219089Spjd return (-1); 366219089Spjd } 367219089Spjd } else { 368219089Spjd zcmd_free_nvlists(&zc); 369219089Spjd return (-1); 370219089Spjd } 371219089Spjd } 372219089Spjd 373219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 374219089Spjd zcmd_free_nvlists(&zc); 375219089Spjd if (err != 0) 376219089Spjd return (-1); 377219089Spjd 378219089Spjd nvlist_free(zhp->zfs_recvd_props); 379219089Spjd zhp->zfs_recvd_props = recvdprops; 380219089Spjd 381219089Spjd return (0); 382219089Spjd} 383219089Spjd 384219089Spjdstatic int 385209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 386209962Smm{ 387209962Smm nvlist_t *allprops, *userprops; 388168404Spjd 389209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 390209962Smm 391209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 392168404Spjd return (-1); 393168404Spjd } 394168404Spjd 395209962Smm /* 396209962Smm * XXX Why do we store the user props separately, in addition to 397209962Smm * storing them in zfs_props? 398209962Smm */ 399185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 400185029Spjd nvlist_free(allprops); 401168404Spjd return (-1); 402185029Spjd } 403168404Spjd 404185029Spjd nvlist_free(zhp->zfs_props); 405185029Spjd nvlist_free(zhp->zfs_user_props); 406185029Spjd 407185029Spjd zhp->zfs_props = allprops; 408185029Spjd zhp->zfs_user_props = userprops; 409185029Spjd 410168404Spjd return (0); 411168404Spjd} 412168404Spjd 413209962Smmstatic int 414209962Smmget_stats(zfs_handle_t *zhp) 415209962Smm{ 416209962Smm int rc = 0; 417209962Smm zfs_cmd_t zc = { 0 }; 418209962Smm 419209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 420209962Smm return (-1); 421209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 422209962Smm rc = -1; 423209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 424209962Smm rc = -1; 425209962Smm zcmd_free_nvlists(&zc); 426209962Smm return (rc); 427209962Smm} 428209962Smm 429168404Spjd/* 430168404Spjd * Refresh the properties currently stored in the handle. 431168404Spjd */ 432168404Spjdvoid 433168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 434168404Spjd{ 435168404Spjd (void) get_stats(zhp); 436168404Spjd} 437168404Spjd 438168404Spjd/* 439168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 440168404Spjd * zfs_iter_* to create child handles on the fly. 441168404Spjd */ 442209962Smmstatic int 443209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 444168404Spjd{ 445219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 446209962Smm return (-1); 447168404Spjd 448168404Spjd /* 449168404Spjd * We've managed to open the dataset and gather statistics. Determine 450168404Spjd * the high-level type. 451168404Spjd */ 452168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 453168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 454168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 455168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 456168404Spjd else 457168404Spjd abort(); 458168404Spjd 459168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 460168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 461168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 462168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 463168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 464168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 465168404Spjd else 466168404Spjd abort(); /* we should never see any other types */ 467168404Spjd 468219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 469219089Spjd return (-1); 470219089Spjd 471209962Smm return (0); 472209962Smm} 473209962Smm 474209962Smmzfs_handle_t * 475209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 476209962Smm{ 477209962Smm zfs_cmd_t zc = { 0 }; 478209962Smm 479209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 480209962Smm 481209962Smm if (zhp == NULL) 482209962Smm return (NULL); 483209962Smm 484209962Smm zhp->zfs_hdl = hdl; 485209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 486209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 487209962Smm free(zhp); 488209962Smm return (NULL); 489209962Smm } 490209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 491209962Smm zcmd_free_nvlists(&zc); 492209962Smm free(zhp); 493209962Smm return (NULL); 494209962Smm } 495209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 496209962Smm free(zhp); 497209962Smm zhp = NULL; 498209962Smm } 499209962Smm zcmd_free_nvlists(&zc); 500168404Spjd return (zhp); 501168404Spjd} 502168404Spjd 503228103Smmzfs_handle_t * 504209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 505209962Smm{ 506209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 507209962Smm 508209962Smm if (zhp == NULL) 509209962Smm return (NULL); 510209962Smm 511209962Smm zhp->zfs_hdl = hdl; 512209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 513209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 514209962Smm free(zhp); 515209962Smm return (NULL); 516209962Smm } 517209962Smm return (zhp); 518209962Smm} 519209962Smm 520228103Smmzfs_handle_t * 521230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 522230438Spjd{ 523230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 524230438Spjd 525230438Spjd if (zhp == NULL) 526230438Spjd return (NULL); 527230438Spjd 528230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 529230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 530230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 531230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 532230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 533230438Spjd return (zhp); 534230438Spjd} 535230438Spjd 536230438Spjdzfs_handle_t * 537228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 538228103Smm{ 539228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 540228103Smm 541228103Smm if (zhp == NULL) 542228103Smm return (NULL); 543228103Smm 544228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 545228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 546228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 547228103Smm sizeof (zhp->zfs_name)); 548228103Smm zhp->zfs_type = zhp_orig->zfs_type; 549228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 550228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 551228103Smm if (zhp_orig->zfs_props != NULL) { 552228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 553228103Smm (void) no_memory(zhp->zfs_hdl); 554228103Smm zfs_close(zhp); 555228103Smm return (NULL); 556228103Smm } 557228103Smm } 558228103Smm if (zhp_orig->zfs_user_props != NULL) { 559228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 560228103Smm &zhp->zfs_user_props, 0) != 0) { 561228103Smm (void) no_memory(zhp->zfs_hdl); 562228103Smm zfs_close(zhp); 563228103Smm return (NULL); 564228103Smm } 565228103Smm } 566228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 567228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 568228103Smm &zhp->zfs_recvd_props, 0)) { 569228103Smm (void) no_memory(zhp->zfs_hdl); 570228103Smm zfs_close(zhp); 571228103Smm return (NULL); 572228103Smm } 573228103Smm } 574228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 575228103Smm if (zhp_orig->zfs_mntopts != NULL) { 576228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 577228103Smm zhp_orig->zfs_mntopts); 578228103Smm } 579228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 580228103Smm return (zhp); 581228103Smm} 582228103Smm 583260183Sdelphijboolean_t 584260183Sdelphijzfs_bookmark_exists(const char *path) 585260183Sdelphij{ 586260183Sdelphij nvlist_t *bmarks; 587260183Sdelphij nvlist_t *props; 588260183Sdelphij char fsname[ZFS_MAXNAMELEN]; 589260183Sdelphij char *bmark_name; 590260183Sdelphij char *pound; 591260183Sdelphij int err; 592260183Sdelphij boolean_t rv; 593260183Sdelphij 594260183Sdelphij 595260183Sdelphij (void) strlcpy(fsname, path, sizeof (fsname)); 596260183Sdelphij pound = strchr(fsname, '#'); 597260183Sdelphij if (pound == NULL) 598260183Sdelphij return (B_FALSE); 599260183Sdelphij 600260183Sdelphij *pound = '\0'; 601260183Sdelphij bmark_name = pound + 1; 602260183Sdelphij props = fnvlist_alloc(); 603260183Sdelphij err = lzc_get_bookmarks(fsname, props, &bmarks); 604260183Sdelphij nvlist_free(props); 605260183Sdelphij if (err != 0) { 606260183Sdelphij nvlist_free(bmarks); 607260183Sdelphij return (B_FALSE); 608260183Sdelphij } 609260183Sdelphij 610260183Sdelphij rv = nvlist_exists(bmarks, bmark_name); 611260183Sdelphij nvlist_free(bmarks); 612260183Sdelphij return (rv); 613260183Sdelphij} 614260183Sdelphij 615260183Sdelphijzfs_handle_t * 616260183Sdelphijmake_bookmark_handle(zfs_handle_t *parent, const char *path, 617260183Sdelphij nvlist_t *bmark_props) 618260183Sdelphij{ 619260183Sdelphij zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 620260183Sdelphij 621260183Sdelphij if (zhp == NULL) 622260183Sdelphij return (NULL); 623260183Sdelphij 624260183Sdelphij /* Fill in the name. */ 625260183Sdelphij zhp->zfs_hdl = parent->zfs_hdl; 626260183Sdelphij (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 627260183Sdelphij 628260183Sdelphij /* Set the property lists. */ 629260183Sdelphij if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) { 630260183Sdelphij free(zhp); 631260183Sdelphij return (NULL); 632260183Sdelphij } 633260183Sdelphij 634260183Sdelphij /* Set the types. */ 635260183Sdelphij zhp->zfs_head_type = parent->zfs_head_type; 636260183Sdelphij zhp->zfs_type = ZFS_TYPE_BOOKMARK; 637260183Sdelphij 638260183Sdelphij if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) { 639260183Sdelphij nvlist_free(zhp->zfs_props); 640260183Sdelphij free(zhp); 641260183Sdelphij return (NULL); 642260183Sdelphij } 643260183Sdelphij 644260183Sdelphij return (zhp); 645260183Sdelphij} 646260183Sdelphij 647168404Spjd/* 648168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 649168404Spjd * argument is a mask of acceptable types. The function will print an 650168404Spjd * appropriate error message and return NULL if it can't be opened. 651168404Spjd */ 652168404Spjdzfs_handle_t * 653168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 654168404Spjd{ 655168404Spjd zfs_handle_t *zhp; 656168404Spjd char errbuf[1024]; 657168404Spjd 658168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 659168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 660168404Spjd 661168404Spjd /* 662168404Spjd * Validate the name before we even try to open it. 663168404Spjd */ 664185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 665168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 666168404Spjd "invalid dataset name")); 667168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 668168404Spjd return (NULL); 669168404Spjd } 670168404Spjd 671168404Spjd /* 672168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 673168404Spjd */ 674168404Spjd errno = 0; 675168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 676168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 677168404Spjd return (NULL); 678168404Spjd } 679168404Spjd 680240870Spjd if (zhp == NULL) { 681240870Spjd char *at = strchr(path, '@'); 682240870Spjd 683240870Spjd if (at != NULL) 684240870Spjd *at = '\0'; 685240870Spjd errno = 0; 686240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 687240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 688240870Spjd return (NULL); 689240870Spjd } 690240870Spjd if (at != NULL) 691240870Spjd *at = '@'; 692240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 693240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 694240870Spjd } 695240870Spjd 696168404Spjd if (!(types & zhp->zfs_type)) { 697168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 698168404Spjd zfs_close(zhp); 699168404Spjd return (NULL); 700168404Spjd } 701168404Spjd 702168404Spjd return (zhp); 703168404Spjd} 704168404Spjd 705168404Spjd/* 706168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 707168404Spjd */ 708168404Spjdvoid 709168404Spjdzfs_close(zfs_handle_t *zhp) 710168404Spjd{ 711168404Spjd if (zhp->zfs_mntopts) 712168404Spjd free(zhp->zfs_mntopts); 713168404Spjd nvlist_free(zhp->zfs_props); 714168404Spjd nvlist_free(zhp->zfs_user_props); 715219089Spjd nvlist_free(zhp->zfs_recvd_props); 716168404Spjd free(zhp); 717168404Spjd} 718168404Spjd 719209962Smmtypedef struct mnttab_node { 720209962Smm struct mnttab mtn_mt; 721209962Smm avl_node_t mtn_node; 722209962Smm} mnttab_node_t; 723209962Smm 724209962Smmstatic int 725209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 726209962Smm{ 727209962Smm const mnttab_node_t *mtn1 = arg1; 728209962Smm const mnttab_node_t *mtn2 = arg2; 729209962Smm int rv; 730209962Smm 731209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 732209962Smm 733209962Smm if (rv == 0) 734209962Smm return (0); 735209962Smm return (rv > 0 ? 1 : -1); 736209962Smm} 737209962Smm 738209962Smmvoid 739209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 740209962Smm{ 741209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 742209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 743209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 744209962Smm} 745209962Smm 746209962Smmvoid 747209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 748209962Smm{ 749209962Smm struct mnttab entry; 750209962Smm 751209962Smm rewind(hdl->libzfs_mnttab); 752209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 753209962Smm mnttab_node_t *mtn; 754209962Smm 755209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 756209962Smm continue; 757209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 758209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 759209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 760209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 761209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 762209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 763209962Smm } 764209962Smm} 765209962Smm 766209962Smmvoid 767209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 768209962Smm{ 769209962Smm void *cookie = NULL; 770209962Smm mnttab_node_t *mtn; 771209962Smm 772209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 773209962Smm free(mtn->mtn_mt.mnt_special); 774209962Smm free(mtn->mtn_mt.mnt_mountp); 775209962Smm free(mtn->mtn_mt.mnt_fstype); 776209962Smm free(mtn->mtn_mt.mnt_mntopts); 777209962Smm free(mtn); 778209962Smm } 779209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 780209962Smm} 781209962Smm 782209962Smmvoid 783209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 784209962Smm{ 785209962Smm hdl->libzfs_mnttab_enable = enable; 786209962Smm} 787209962Smm 788185029Spjdint 789209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 790209962Smm struct mnttab *entry) 791209962Smm{ 792209962Smm mnttab_node_t find; 793209962Smm mnttab_node_t *mtn; 794209962Smm 795209962Smm if (!hdl->libzfs_mnttab_enable) { 796209962Smm struct mnttab srch = { 0 }; 797209962Smm 798209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 799209962Smm libzfs_mnttab_fini(hdl); 800209962Smm rewind(hdl->libzfs_mnttab); 801209962Smm srch.mnt_special = (char *)fsname; 802209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 803209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 804209962Smm return (0); 805209962Smm else 806209962Smm return (ENOENT); 807209962Smm } 808209962Smm 809209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 810209962Smm libzfs_mnttab_update(hdl); 811209962Smm 812209962Smm find.mtn_mt.mnt_special = (char *)fsname; 813209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 814209962Smm if (mtn) { 815209962Smm *entry = mtn->mtn_mt; 816209962Smm return (0); 817209962Smm } 818209962Smm return (ENOENT); 819209962Smm} 820209962Smm 821209962Smmvoid 822209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 823209962Smm const char *mountp, const char *mntopts) 824209962Smm{ 825209962Smm mnttab_node_t *mtn; 826209962Smm 827209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 828209962Smm return; 829209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 830209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 831209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 832209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 833209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 834209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 835209962Smm} 836209962Smm 837209962Smmvoid 838209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 839209962Smm{ 840209962Smm mnttab_node_t find; 841209962Smm mnttab_node_t *ret; 842209962Smm 843209962Smm find.mtn_mt.mnt_special = (char *)fsname; 844209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 845209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 846209962Smm free(ret->mtn_mt.mnt_special); 847209962Smm free(ret->mtn_mt.mnt_mountp); 848209962Smm free(ret->mtn_mt.mnt_fstype); 849209962Smm free(ret->mtn_mt.mnt_mntopts); 850209962Smm free(ret); 851209962Smm } 852209962Smm} 853209962Smm 854209962Smmint 855185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 856168404Spjd{ 857185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 858168404Spjd 859185029Spjd if (zpool_handle == NULL) 860168404Spjd return (-1); 861168404Spjd 862185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 863185029Spjd ZPOOL_PROP_VERSION, NULL); 864168404Spjd return (0); 865168404Spjd} 866168404Spjd 867168404Spjd/* 868185029Spjd * The choice of reservation property depends on the SPA version. 869168404Spjd */ 870168404Spjdstatic int 871185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 872168404Spjd{ 873185029Spjd int spa_version; 874168404Spjd 875185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 876168404Spjd return (-1); 877168404Spjd 878185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 879185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 880185029Spjd else 881185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 882168404Spjd 883168404Spjd return (0); 884168404Spjd} 885168404Spjd 886168404Spjd/* 887168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 888168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 889168404Spjd * strings. 890168404Spjd */ 891168404Spjdnvlist_t * 892185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 893185029Spjd uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) 894168404Spjd{ 895168404Spjd nvpair_t *elem; 896168404Spjd uint64_t intval; 897168404Spjd char *strval; 898185029Spjd zfs_prop_t prop; 899168404Spjd nvlist_t *ret; 900185029Spjd int chosen_normal = -1; 901185029Spjd int chosen_utf = -1; 902168404Spjd 903168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 904168404Spjd (void) no_memory(hdl); 905168404Spjd return (NULL); 906168404Spjd } 907168404Spjd 908209962Smm /* 909209962Smm * Make sure this property is valid and applies to this type. 910209962Smm */ 911209962Smm 912168404Spjd elem = NULL; 913168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 914185029Spjd const char *propname = nvpair_name(elem); 915168404Spjd 916209962Smm prop = zfs_name_to_prop(propname); 917209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 918185029Spjd /* 919209962Smm * This is a user property: make sure it's a 920185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 921185029Spjd */ 922185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 923185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 924185029Spjd "'%s' must be a string"), propname); 925185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 926185029Spjd goto error; 927168404Spjd } 928168404Spjd 929185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 930185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 931185029Spjd "property name '%s' is too long"), 932185029Spjd propname); 933185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 934185029Spjd goto error; 935185029Spjd } 936185029Spjd 937168404Spjd (void) nvpair_value_string(elem, &strval); 938168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 939168404Spjd (void) no_memory(hdl); 940168404Spjd goto error; 941168404Spjd } 942168404Spjd continue; 943168404Spjd } 944168404Spjd 945209962Smm /* 946209962Smm * Currently, only user properties can be modified on 947209962Smm * snapshots. 948209962Smm */ 949185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 950185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 951185029Spjd "this property can not be modified for snapshots")); 952185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 953185029Spjd goto error; 954185029Spjd } 955168404Spjd 956209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 957209962Smm zfs_userquota_prop_t uqtype; 958209962Smm char newpropname[128]; 959209962Smm char domain[128]; 960209962Smm uint64_t rid; 961209962Smm uint64_t valary[3]; 962209962Smm 963209962Smm if (userquota_propname_decode(propname, zoned, 964209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 965209962Smm zfs_error_aux(hdl, 966209962Smm dgettext(TEXT_DOMAIN, 967209962Smm "'%s' has an invalid user/group name"), 968209962Smm propname); 969209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 970209962Smm goto error; 971209962Smm } 972209962Smm 973209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 974209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 975209962Smm zfs_error_aux(hdl, 976209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 977209962Smm propname); 978209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 979209962Smm errbuf); 980209962Smm goto error; 981209962Smm } 982209962Smm 983209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 984209962Smm (void) nvpair_value_string(elem, &strval); 985209962Smm if (strcmp(strval, "none") == 0) { 986209962Smm intval = 0; 987209962Smm } else if (zfs_nicestrtonum(hdl, 988209962Smm strval, &intval) != 0) { 989209962Smm (void) zfs_error(hdl, 990209962Smm EZFS_BADPROP, errbuf); 991209962Smm goto error; 992209962Smm } 993209962Smm } else if (nvpair_type(elem) == 994209962Smm DATA_TYPE_UINT64) { 995209962Smm (void) nvpair_value_uint64(elem, &intval); 996209962Smm if (intval == 0) { 997209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 998209962Smm "use 'none' to disable " 999209962Smm "userquota/groupquota")); 1000209962Smm goto error; 1001209962Smm } 1002209962Smm } else { 1003209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1004209962Smm "'%s' must be a number"), propname); 1005209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1006209962Smm goto error; 1007209962Smm } 1008209962Smm 1009219089Spjd /* 1010219089Spjd * Encode the prop name as 1011219089Spjd * userquota@<hex-rid>-domain, to make it easy 1012219089Spjd * for the kernel to decode. 1013219089Spjd */ 1014209962Smm (void) snprintf(newpropname, sizeof (newpropname), 1015219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 1016219089Spjd (longlong_t)rid, domain); 1017209962Smm valary[0] = uqtype; 1018209962Smm valary[1] = rid; 1019209962Smm valary[2] = intval; 1020209962Smm if (nvlist_add_uint64_array(ret, newpropname, 1021209962Smm valary, 3) != 0) { 1022209962Smm (void) no_memory(hdl); 1023209962Smm goto error; 1024209962Smm } 1025209962Smm continue; 1026228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 1027228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1028228103Smm "'%s' is readonly"), 1029228103Smm propname); 1030228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1031228103Smm goto error; 1032209962Smm } 1033209962Smm 1034209962Smm if (prop == ZPROP_INVAL) { 1035209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1036209962Smm "invalid property '%s'"), propname); 1037209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1038209962Smm goto error; 1039209962Smm } 1040209962Smm 1041168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 1042168404Spjd zfs_error_aux(hdl, 1043168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 1044168404Spjd "apply to datasets of this type"), propname); 1045168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 1046168404Spjd goto error; 1047168404Spjd } 1048168404Spjd 1049168404Spjd if (zfs_prop_readonly(prop) && 1050185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 1051168404Spjd zfs_error_aux(hdl, 1052168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 1053168404Spjd propname); 1054168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1055168404Spjd goto error; 1056168404Spjd } 1057168404Spjd 1058185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 1059185029Spjd &strval, &intval, errbuf) != 0) 1060185029Spjd goto error; 1061185029Spjd 1062168404Spjd /* 1063185029Spjd * Perform some additional checks for specific properties. 1064168404Spjd */ 1065185029Spjd switch (prop) { 1066185029Spjd case ZFS_PROP_VERSION: 1067185029Spjd { 1068185029Spjd int version; 1069168404Spjd 1070185029Spjd if (zhp == NULL) 1071185029Spjd break; 1072185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1073185029Spjd if (intval < version) { 1074168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1075185029Spjd "Can not downgrade; already at version %u"), 1076185029Spjd version); 1077168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1078168404Spjd goto error; 1079168404Spjd } 1080168404Spjd break; 1081168404Spjd } 1082168404Spjd 1083274337Sdelphij case ZFS_PROP_VOLBLOCKSIZE: 1084168404Spjd case ZFS_PROP_RECORDSIZE: 1085274337Sdelphij { 1086274337Sdelphij int maxbs = SPA_MAXBLOCKSIZE; 1087274337Sdelphij if (zhp != NULL) { 1088274337Sdelphij maxbs = zpool_get_prop_int(zhp->zpool_hdl, 1089274337Sdelphij ZPOOL_PROP_MAXBLOCKSIZE, NULL); 1090274337Sdelphij } 1091274337Sdelphij /* 1092274337Sdelphij * Volumes are limited to a volblocksize of 128KB, 1093274337Sdelphij * because they typically service workloads with 1094274337Sdelphij * small random writes, which incur a large performance 1095274337Sdelphij * penalty with large blocks. 1096274337Sdelphij */ 1097274337Sdelphij if (prop == ZFS_PROP_VOLBLOCKSIZE) 1098274337Sdelphij maxbs = SPA_OLD_MAXBLOCKSIZE; 1099274337Sdelphij /* 1100274337Sdelphij * The value must be a power of two between 1101274337Sdelphij * SPA_MINBLOCKSIZE and maxbs. 1102274337Sdelphij */ 1103168404Spjd if (intval < SPA_MINBLOCKSIZE || 1104274337Sdelphij intval > maxbs || !ISP2(intval)) { 1105168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1106274337Sdelphij "'%s' must be power of 2 from 512B " 1107274337Sdelphij "to %uKB"), propname, maxbs >> 10); 1108168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1109168404Spjd goto error; 1110168404Spjd } 1111168404Spjd break; 1112274337Sdelphij } 1113219089Spjd case ZFS_PROP_MLSLABEL: 1114219089Spjd { 1115277300Ssmh#ifdef illumos 1116219089Spjd /* 1117219089Spjd * Verify the mlslabel string and convert to 1118219089Spjd * internal hex label string. 1119219089Spjd */ 1120219089Spjd 1121219089Spjd m_label_t *new_sl; 1122219089Spjd char *hex = NULL; /* internal label string */ 1123219089Spjd 1124219089Spjd /* Default value is already OK. */ 1125219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1126219089Spjd break; 1127219089Spjd 1128219089Spjd /* Verify the label can be converted to binary form */ 1129219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1130219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1131219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1132219089Spjd goto badlabel; 1133168404Spjd } 1134168404Spjd 1135219089Spjd /* Now translate to hex internal label string */ 1136219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1137219089Spjd DEF_NAMES) != 0) { 1138219089Spjd if (hex) 1139219089Spjd free(hex); 1140219089Spjd goto badlabel; 1141219089Spjd } 1142219089Spjd m_label_free(new_sl); 1143219089Spjd 1144219089Spjd /* If string is already in internal form, we're done. */ 1145219089Spjd if (strcmp(strval, hex) == 0) { 1146219089Spjd free(hex); 1147219089Spjd break; 1148219089Spjd } 1149219089Spjd 1150219089Spjd /* Replace the label string with the internal form. */ 1151219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1152219089Spjd DATA_TYPE_STRING); 1153219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1154219089Spjd hex) == 0); 1155219089Spjd free(hex); 1156219089Spjd 1157168404Spjd break; 1158168404Spjd 1159219089Spjdbadlabel: 1160219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1161219089Spjd "invalid mlslabel '%s'"), strval); 1162219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1163219089Spjd m_label_free(new_sl); /* OK if null */ 1164277300Ssmh#else /* !illumos */ 1165219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1166219089Spjd "mlslabel is not supported on FreeBSD")); 1167219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1168277300Ssmh#endif /* illumos */ 1169219089Spjd goto error; 1170219089Spjd 1171219089Spjd } 1172219089Spjd 1173168404Spjd case ZFS_PROP_MOUNTPOINT: 1174185029Spjd { 1175185029Spjd namecheck_err_t why; 1176185029Spjd 1177168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1178168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1179168404Spjd break; 1180168404Spjd 1181185029Spjd if (mountpoint_namecheck(strval, &why)) { 1182185029Spjd switch (why) { 1183185029Spjd case NAME_ERR_LEADING_SLASH: 1184185029Spjd zfs_error_aux(hdl, 1185185029Spjd dgettext(TEXT_DOMAIN, 1186185029Spjd "'%s' must be an absolute path, " 1187185029Spjd "'none', or 'legacy'"), propname); 1188185029Spjd break; 1189185029Spjd case NAME_ERR_TOOLONG: 1190185029Spjd zfs_error_aux(hdl, 1191185029Spjd dgettext(TEXT_DOMAIN, 1192185029Spjd "component of '%s' is too long"), 1193185029Spjd propname); 1194185029Spjd break; 1195185029Spjd } 1196168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1197168404Spjd goto error; 1198168404Spjd } 1199185029Spjd } 1200185029Spjd 1201168404Spjd /*FALLTHRU*/ 1202168404Spjd 1203185029Spjd case ZFS_PROP_SHARESMB: 1204168404Spjd case ZFS_PROP_SHARENFS: 1205168404Spjd /* 1206185029Spjd * For the mountpoint and sharenfs or sharesmb 1207185029Spjd * properties, check if it can be set in a 1208185029Spjd * global/non-global zone based on 1209168404Spjd * the zoned property value: 1210168404Spjd * 1211168404Spjd * global zone non-global zone 1212168404Spjd * -------------------------------------------------- 1213168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1214168404Spjd * sharenfs (no) sharenfs (no) 1215185029Spjd * sharesmb (no) sharesmb (no) 1216168404Spjd * 1217168404Spjd * zoned=off mountpoint (yes) N/A 1218168404Spjd * sharenfs (yes) 1219185029Spjd * sharesmb (yes) 1220168404Spjd */ 1221168404Spjd if (zoned) { 1222168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1223168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1224168404Spjd "'%s' cannot be set on " 1225168404Spjd "dataset in a non-global zone"), 1226168404Spjd propname); 1227168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1228168404Spjd errbuf); 1229168404Spjd goto error; 1230185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1231185029Spjd prop == ZFS_PROP_SHARESMB) { 1232168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1233168404Spjd "'%s' cannot be set in " 1234168404Spjd "a non-global zone"), propname); 1235168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1236168404Spjd errbuf); 1237168404Spjd goto error; 1238168404Spjd } 1239168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1240168404Spjd /* 1241168404Spjd * If zoned property is 'off', this must be in 1242209962Smm * a global zone. If not, something is wrong. 1243168404Spjd */ 1244168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1245168404Spjd "'%s' cannot be set while dataset " 1246168404Spjd "'zoned' property is set"), propname); 1247168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1248168404Spjd goto error; 1249168404Spjd } 1250168404Spjd 1251168404Spjd /* 1252185029Spjd * At this point, it is legitimate to set the 1253185029Spjd * property. Now we want to make sure that the 1254185029Spjd * property value is valid if it is sharenfs. 1255168404Spjd */ 1256185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1257185029Spjd prop == ZFS_PROP_SHARESMB) && 1258185029Spjd strcmp(strval, "on") != 0 && 1259185029Spjd strcmp(strval, "off") != 0) { 1260185029Spjd zfs_share_proto_t proto; 1261168404Spjd 1262185029Spjd if (prop == ZFS_PROP_SHARESMB) 1263185029Spjd proto = PROTO_SMB; 1264185029Spjd else 1265185029Spjd proto = PROTO_NFS; 1266185029Spjd 1267185029Spjd /* 1268185029Spjd * Must be an valid sharing protocol 1269185029Spjd * option string so init the libshare 1270185029Spjd * in order to enable the parser and 1271185029Spjd * then parse the options. We use the 1272185029Spjd * control API since we don't care about 1273185029Spjd * the current configuration and don't 1274185029Spjd * want the overhead of loading it 1275185029Spjd * until we actually do something. 1276185029Spjd */ 1277185029Spjd 1278185029Spjd if (zfs_init_libshare(hdl, 1279185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1280185029Spjd /* 1281185029Spjd * An error occurred so we can't do 1282185029Spjd * anything 1283185029Spjd */ 1284185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1285185029Spjd "'%s' cannot be set: problem " 1286185029Spjd "in share initialization"), 1287185029Spjd propname); 1288185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1289185029Spjd errbuf); 1290185029Spjd goto error; 1291185029Spjd } 1292185029Spjd 1293185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1294185029Spjd /* 1295185029Spjd * There was an error in parsing so 1296185029Spjd * deal with it by issuing an error 1297185029Spjd * message and leaving after 1298185029Spjd * uninitializing the the libshare 1299185029Spjd * interface. 1300185029Spjd */ 1301185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1302185029Spjd "'%s' cannot be set to invalid " 1303185029Spjd "options"), propname); 1304185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1305185029Spjd errbuf); 1306185029Spjd zfs_uninit_libshare(hdl); 1307185029Spjd goto error; 1308185029Spjd } 1309185029Spjd zfs_uninit_libshare(hdl); 1310168404Spjd } 1311185029Spjd 1312168404Spjd break; 1313185029Spjd case ZFS_PROP_UTF8ONLY: 1314185029Spjd chosen_utf = (int)intval; 1315185029Spjd break; 1316185029Spjd case ZFS_PROP_NORMALIZE: 1317185029Spjd chosen_normal = (int)intval; 1318185029Spjd break; 1319168404Spjd } 1320168404Spjd 1321168404Spjd /* 1322168404Spjd * For changes to existing volumes, we have some additional 1323168404Spjd * checks to enforce. 1324168404Spjd */ 1325168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1326168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1327168404Spjd ZFS_PROP_VOLSIZE); 1328168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1329168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1330168404Spjd char buf[64]; 1331168404Spjd 1332168404Spjd switch (prop) { 1333168404Spjd case ZFS_PROP_RESERVATION: 1334185029Spjd case ZFS_PROP_REFRESERVATION: 1335168404Spjd if (intval > volsize) { 1336168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1337168404Spjd "'%s' is greater than current " 1338168404Spjd "volume size"), propname); 1339168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1340168404Spjd errbuf); 1341168404Spjd goto error; 1342168404Spjd } 1343168404Spjd break; 1344168404Spjd 1345168404Spjd case ZFS_PROP_VOLSIZE: 1346168404Spjd if (intval % blocksize != 0) { 1347168404Spjd zfs_nicenum(blocksize, buf, 1348168404Spjd sizeof (buf)); 1349168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1350168404Spjd "'%s' must be a multiple of " 1351168404Spjd "volume block size (%s)"), 1352168404Spjd propname, buf); 1353168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1354168404Spjd errbuf); 1355168404Spjd goto error; 1356168404Spjd } 1357168404Spjd 1358168404Spjd if (intval == 0) { 1359168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1360168404Spjd "'%s' cannot be zero"), 1361168404Spjd propname); 1362168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1363168404Spjd errbuf); 1364168404Spjd goto error; 1365168404Spjd } 1366168404Spjd break; 1367168404Spjd } 1368168404Spjd } 1369168404Spjd } 1370168404Spjd 1371168404Spjd /* 1372185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1373185029Spjd * enforce rejection of non-UTF8 names. 1374185029Spjd * 1375185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1376185029Spjd * was explicitly not chosen, it is an error. 1377185029Spjd */ 1378185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1379185029Spjd if (nvlist_add_uint64(ret, 1380185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1381185029Spjd (void) no_memory(hdl); 1382185029Spjd goto error; 1383185029Spjd } 1384185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1385185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1386185029Spjd "'%s' must be set 'on' if normalization chosen"), 1387185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1388185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1389185029Spjd goto error; 1390185029Spjd } 1391219089Spjd return (ret); 1392185029Spjd 1393219089Spjderror: 1394219089Spjd nvlist_free(ret); 1395219089Spjd return (NULL); 1396219089Spjd} 1397219089Spjd 1398219089Spjdint 1399219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1400219089Spjd{ 1401219089Spjd uint64_t old_volsize; 1402219089Spjd uint64_t new_volsize; 1403219089Spjd uint64_t old_reservation; 1404219089Spjd uint64_t new_reservation; 1405219089Spjd zfs_prop_t resv_prop; 1406219089Spjd 1407185029Spjd /* 1408168404Spjd * If this is an existing volume, and someone is setting the volsize, 1409168404Spjd * make sure that it matches the reservation, or add it if necessary. 1410168404Spjd */ 1411219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1412219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1413219089Spjd return (-1); 1414219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1415219089Spjd if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != 1416219089Spjd old_reservation) || nvlist_lookup_uint64(nvl, 1417219089Spjd zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { 1418219089Spjd return (0); 1419219089Spjd } 1420219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1421219089Spjd &new_volsize) != 0) 1422219089Spjd return (-1); 1423219089Spjd new_reservation = zvol_volsize_to_reservation(new_volsize, 1424219089Spjd zhp->zfs_props); 1425219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1426219089Spjd new_reservation) != 0) { 1427219089Spjd (void) no_memory(zhp->zfs_hdl); 1428219089Spjd return (-1); 1429219089Spjd } 1430219089Spjd return (1); 1431219089Spjd} 1432168404Spjd 1433219089Spjdvoid 1434219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1435219089Spjd char *errbuf) 1436219089Spjd{ 1437219089Spjd switch (err) { 1438185029Spjd 1439219089Spjd case ENOSPC: 1440219089Spjd /* 1441219089Spjd * For quotas and reservations, ENOSPC indicates 1442219089Spjd * something different; setting a quota or reservation 1443219089Spjd * doesn't use any disk space. 1444219089Spjd */ 1445219089Spjd switch (prop) { 1446219089Spjd case ZFS_PROP_QUOTA: 1447219089Spjd case ZFS_PROP_REFQUOTA: 1448219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1449219089Spjd "size is less than current used or " 1450219089Spjd "reserved space")); 1451219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1452219089Spjd break; 1453219089Spjd 1454219089Spjd case ZFS_PROP_RESERVATION: 1455219089Spjd case ZFS_PROP_REFRESERVATION: 1456219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1457219089Spjd "size is greater than available space")); 1458219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1459219089Spjd break; 1460219089Spjd 1461219089Spjd default: 1462219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1463219089Spjd break; 1464168404Spjd } 1465219089Spjd break; 1466219089Spjd 1467219089Spjd case EBUSY: 1468219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1469219089Spjd break; 1470219089Spjd 1471219089Spjd case EROFS: 1472219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1473219089Spjd break; 1474219089Spjd 1475271764Swill case E2BIG: 1476271764Swill zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1477271764Swill "property value too long")); 1478271764Swill (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1479271764Swill break; 1480271764Swill 1481219089Spjd case ENOTSUP: 1482219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1483219089Spjd "pool and or dataset must be upgraded to set this " 1484219089Spjd "property or value")); 1485219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1486219089Spjd break; 1487219089Spjd 1488219089Spjd case ERANGE: 1489274337Sdelphij case EDOM: 1490274337Sdelphij if (prop == ZFS_PROP_COMPRESSION || 1491274337Sdelphij prop == ZFS_PROP_RECORDSIZE) { 1492219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1493219089Spjd "property setting is not allowed on " 1494219089Spjd "bootable datasets")); 1495219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1496289422Smav } else if (prop == ZFS_PROP_CHECKSUM || 1497289422Smav prop == ZFS_PROP_DEDUP) { 1498289422Smav (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1499289422Smav "property setting is not allowed on " 1500289422Smav "root pools")); 1501289422Smav (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1502219089Spjd } else { 1503219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1504219089Spjd } 1505219089Spjd break; 1506219089Spjd 1507219089Spjd case EINVAL: 1508219089Spjd if (prop == ZPROP_INVAL) { 1509219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1510219089Spjd } else { 1511219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1512219089Spjd } 1513219089Spjd break; 1514219089Spjd 1515219089Spjd case EOVERFLOW: 1516219089Spjd /* 1517219089Spjd * This platform can't address a volume this big. 1518219089Spjd */ 1519219089Spjd#ifdef _ILP32 1520219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1521219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1522219089Spjd break; 1523219089Spjd } 1524219089Spjd#endif 1525219089Spjd /* FALLTHROUGH */ 1526219089Spjd default: 1527219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1528168404Spjd } 1529168404Spjd} 1530168404Spjd 1531168404Spjd/* 1532168404Spjd * Given a property name and value, set the property for the given dataset. 1533168404Spjd */ 1534168404Spjdint 1535168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1536168404Spjd{ 1537168404Spjd int ret = -1; 1538168404Spjd char errbuf[1024]; 1539168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1540289497Smav nvlist_t *nvl = NULL; 1541168404Spjd 1542168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1543168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1544168404Spjd zhp->zfs_name); 1545168404Spjd 1546168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1547168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1548168404Spjd (void) no_memory(hdl); 1549168404Spjd goto error; 1550168404Spjd } 1551168404Spjd 1552289497Smav ret = zfs_prop_set_list(zhp, nvl); 1553185029Spjd 1554289497Smaverror: 1555168404Spjd nvlist_free(nvl); 1556289497Smav return (ret); 1557289497Smav} 1558168404Spjd 1559168404Spjd 1560168404Spjd 1561289497Smav/* 1562289497Smav * Given an nvlist of property names and values, set the properties for the 1563289497Smav * given dataset. 1564289497Smav */ 1565289497Smavint 1566289497Smavzfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props) 1567289497Smav{ 1568289497Smav zfs_cmd_t zc = { 0 }; 1569289497Smav int ret = -1; 1570289497Smav prop_changelist_t **cls = NULL; 1571289497Smav int cl_idx; 1572289497Smav char errbuf[1024]; 1573289497Smav libzfs_handle_t *hdl = zhp->zfs_hdl; 1574289497Smav nvlist_t *nvl; 1575289497Smav int nvl_len; 1576289497Smav int added_resv; 1577219089Spjd 1578289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1579289497Smav dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1580289497Smav zhp->zfs_name); 1581168404Spjd 1582289497Smav if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props, 1583289497Smav zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) 1584168404Spjd goto error; 1585168404Spjd 1586185029Spjd /* 1587289497Smav * We have to check for any extra properties which need to be added 1588289497Smav * before computing the length of the nvlist. 1589185029Spjd */ 1590289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1591289497Smav elem != NULL; 1592289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1593289497Smav if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE && 1594289497Smav (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) { 1595289497Smav goto error; 1596289497Smav } 1597238391Smm } 1598289497Smav /* 1599289497Smav * Check how many properties we're setting and allocate an array to 1600289497Smav * store changelist pointers for postfix(). 1601289497Smav */ 1602289497Smav nvl_len = 0; 1603289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1604289497Smav elem != NULL; 1605289497Smav elem = nvlist_next_nvpair(nvl, elem)) 1606289497Smav nvl_len++; 1607289497Smav if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL) 1608168404Spjd goto error; 1609168404Spjd 1610289497Smav cl_idx = 0; 1611289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1612289497Smav elem != NULL; 1613289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1614289497Smav 1615289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1616289497Smav 1617289497Smav assert(cl_idx < nvl_len); 1618289497Smav /* 1619289497Smav * We don't want to unmount & remount the dataset when changing 1620289497Smav * its canmount property to 'on' or 'noauto'. We only use 1621289497Smav * the changelist logic to unmount when setting canmount=off. 1622289497Smav */ 1623289497Smav if (!(prop == ZFS_PROP_CANMOUNT && 1624289497Smav fnvpair_value_uint64(elem) != ZFS_CANMOUNT_OFF)) { 1625289497Smav cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); 1626289497Smav if (cls[cl_idx] == NULL) 1627289497Smav goto error; 1628289497Smav } 1629289497Smav 1630289497Smav if (prop == ZFS_PROP_MOUNTPOINT && 1631289497Smav changelist_haszonedchild(cls[cl_idx])) { 1632289497Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1633289497Smav "child dataset with inherited mountpoint is used " 1634289497Smav "in a non-global zone")); 1635289497Smav ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1636289497Smav goto error; 1637289497Smav } 1638289497Smav 1639289497Smav /* We don't support those properties on FreeBSD. */ 1640289497Smav switch (prop) { 1641289497Smav case ZFS_PROP_DEVICES: 1642289497Smav case ZFS_PROP_ISCSIOPTIONS: 1643289497Smav case ZFS_PROP_XATTR: 1644289497Smav case ZFS_PROP_VSCAN: 1645289497Smav case ZFS_PROP_NBMAND: 1646289497Smav case ZFS_PROP_MLSLABEL: 1647289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1648289497Smav "property '%s' not supported on FreeBSD", 1649289497Smav nvpair_name(elem)); 1650289497Smav ret = zfs_error(hdl, EZFS_PERM, errbuf); 1651289497Smav goto error; 1652289497Smav } 1653289497Smav 1654289497Smav if (cls[cl_idx] != NULL && 1655289497Smav (ret = changelist_prefix(cls[cl_idx])) != 0) 1656289497Smav goto error; 1657289497Smav 1658289497Smav cl_idx++; 1659289497Smav } 1660289497Smav assert(cl_idx == nvl_len); 1661289497Smav 1662168404Spjd /* 1663289497Smav * Execute the corresponding ioctl() to set this list of properties. 1664168404Spjd */ 1665168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1666168404Spjd 1667289497Smav if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || 1668289497Smav (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) 1669168404Spjd goto error; 1670168404Spjd 1671185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1672209962Smm 1673168404Spjd if (ret != 0) { 1674289497Smav /* Get the list of unset properties back and report them. */ 1675289497Smav nvlist_t *errorprops = NULL; 1676289497Smav if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) 1677289497Smav goto error; 1678289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1679289497Smav elem != NULL; 1680289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1681289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1682289497Smav zfs_setprop_error(hdl, prop, errno, errbuf); 1683289497Smav } 1684289497Smav nvlist_free(errorprops); 1685289497Smav 1686219089Spjd if (added_resv && errno == ENOSPC) { 1687219089Spjd /* clean up the volsize property we tried to set */ 1688219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1689219089Spjd ZFS_PROP_VOLSIZE); 1690219089Spjd nvlist_free(nvl); 1691289497Smav nvl = NULL; 1692219089Spjd zcmd_free_nvlists(&zc); 1693289497Smav 1694219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1695219089Spjd goto error; 1696219089Spjd if (nvlist_add_uint64(nvl, 1697219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1698219089Spjd old_volsize) != 0) 1699219089Spjd goto error; 1700219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1701219089Spjd goto error; 1702219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1703168404Spjd } 1704168404Spjd } else { 1705289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1706289497Smav if (cls[cl_idx] != NULL) { 1707289497Smav int clp_err = changelist_postfix(cls[cl_idx]); 1708289497Smav if (clp_err != 0) 1709289497Smav ret = clp_err; 1710289497Smav } 1711289497Smav } 1712185029Spjd 1713168404Spjd /* 1714168404Spjd * Refresh the statistics so the new property value 1715168404Spjd * is reflected. 1716168404Spjd */ 1717185029Spjd if (ret == 0) 1718168404Spjd (void) get_stats(zhp); 1719168404Spjd } 1720168404Spjd 1721168404Spjderror: 1722168404Spjd nvlist_free(nvl); 1723168404Spjd zcmd_free_nvlists(&zc); 1724289497Smav if (cls != NULL) { 1725289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1726289497Smav if (cls[cl_idx] != NULL) 1727289497Smav changelist_free(cls[cl_idx]); 1728289497Smav } 1729289497Smav free(cls); 1730289497Smav } 1731168404Spjd return (ret); 1732168404Spjd} 1733168404Spjd 1734168404Spjd/* 1735219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1736219089Spjd * is TRUE, revert to the received value, if any. 1737168404Spjd */ 1738168404Spjdint 1739219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1740168404Spjd{ 1741168404Spjd zfs_cmd_t zc = { 0 }; 1742168404Spjd int ret; 1743168404Spjd prop_changelist_t *cl; 1744168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1745168404Spjd char errbuf[1024]; 1746168404Spjd zfs_prop_t prop; 1747168404Spjd 1748168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1749168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1750168404Spjd 1751219089Spjd zc.zc_cookie = received; 1752185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1753168404Spjd /* 1754168404Spjd * For user properties, the amount of work we have to do is very 1755168404Spjd * small, so just do it here. 1756168404Spjd */ 1757168404Spjd if (!zfs_prop_user(propname)) { 1758168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1759168404Spjd "invalid property")); 1760168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1761168404Spjd } 1762168404Spjd 1763168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1764168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1765168404Spjd 1766185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1767168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1768168404Spjd 1769168404Spjd return (0); 1770168404Spjd } 1771168404Spjd 1772168404Spjd /* 1773168404Spjd * Verify that this property is inheritable. 1774168404Spjd */ 1775168404Spjd if (zfs_prop_readonly(prop)) 1776168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1777168404Spjd 1778219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1779168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1780168404Spjd 1781168404Spjd /* 1782168404Spjd * Check to see if the value applies to this type 1783168404Spjd */ 1784168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1785168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1786168404Spjd 1787168404Spjd /* 1788219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1789168404Spjd */ 1790168404Spjd propname = zfs_prop_to_name(prop); 1791168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1792168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1793168404Spjd 1794168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1795168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1796168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1797168404Spjd "dataset is used in a non-global zone")); 1798168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1799168404Spjd } 1800168404Spjd 1801168404Spjd /* 1802168404Spjd * Determine datasets which will be affected by this change, if any. 1803168404Spjd */ 1804185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1805168404Spjd return (-1); 1806168404Spjd 1807168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1808168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1809168404Spjd "child dataset with inherited mountpoint is used " 1810168404Spjd "in a non-global zone")); 1811168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1812168404Spjd goto error; 1813168404Spjd } 1814168404Spjd 1815168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1816168404Spjd goto error; 1817168404Spjd 1818185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1819168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1820168404Spjd } else { 1821168404Spjd 1822168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1823168404Spjd goto error; 1824168404Spjd 1825168404Spjd /* 1826168404Spjd * Refresh the statistics so the new property is reflected. 1827168404Spjd */ 1828168404Spjd (void) get_stats(zhp); 1829168404Spjd } 1830168404Spjd 1831168404Spjderror: 1832168404Spjd changelist_free(cl); 1833168404Spjd return (ret); 1834168404Spjd} 1835168404Spjd 1836168404Spjd/* 1837168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1838168404Spjd * extract them appropriately. 1839168404Spjd */ 1840168404Spjdstatic uint64_t 1841168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1842168404Spjd{ 1843168404Spjd nvlist_t *nv; 1844168404Spjd uint64_t value; 1845168404Spjd 1846168404Spjd *source = NULL; 1847168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1848168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1849185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1850185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1851168404Spjd } else { 1852205198Sdelphij verify(!zhp->zfs_props_table || 1853205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1854168404Spjd value = zfs_prop_default_numeric(prop); 1855168404Spjd *source = ""; 1856168404Spjd } 1857168404Spjd 1858168404Spjd return (value); 1859168404Spjd} 1860168404Spjd 1861289362Smavstatic const char * 1862168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1863168404Spjd{ 1864168404Spjd nvlist_t *nv; 1865289362Smav const char *value; 1866168404Spjd 1867168404Spjd *source = NULL; 1868168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1869168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1870289362Smav value = fnvlist_lookup_string(nv, ZPROP_VALUE); 1871185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1872168404Spjd } else { 1873205198Sdelphij verify(!zhp->zfs_props_table || 1874205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1875289362Smav value = zfs_prop_default_string(prop); 1876168404Spjd *source = ""; 1877168404Spjd } 1878168404Spjd 1879168404Spjd return (value); 1880168404Spjd} 1881168404Spjd 1882219089Spjdstatic boolean_t 1883219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1884219089Spjd{ 1885219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1886219089Spjd} 1887219089Spjd 1888219089Spjdstatic void 1889219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1890219089Spjd{ 1891219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1892219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1893219089Spjd} 1894219089Spjd 1895219089Spjdstatic void 1896219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1897219089Spjd{ 1898219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1899219089Spjd *cookie = 0; 1900219089Spjd} 1901219089Spjd 1902168404Spjd/* 1903168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1904168404Spjd * zfs_prop_get_int() are built using this interface. 1905168404Spjd * 1906168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1907168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1908168404Spjd * If they differ from the on-disk values, report the current values and mark 1909168404Spjd * the source "temporary". 1910168404Spjd */ 1911168404Spjdstatic int 1912185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1913168404Spjd char **source, uint64_t *val) 1914168404Spjd{ 1915185029Spjd zfs_cmd_t zc = { 0 }; 1916185029Spjd nvlist_t *zplprops = NULL; 1917168404Spjd struct mnttab mnt; 1918168404Spjd char *mntopt_on = NULL; 1919168404Spjd char *mntopt_off = NULL; 1920219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1921168404Spjd 1922168404Spjd *source = NULL; 1923168404Spjd 1924168404Spjd switch (prop) { 1925168404Spjd case ZFS_PROP_ATIME: 1926168404Spjd mntopt_on = MNTOPT_ATIME; 1927168404Spjd mntopt_off = MNTOPT_NOATIME; 1928168404Spjd break; 1929168404Spjd 1930168404Spjd case ZFS_PROP_DEVICES: 1931168404Spjd mntopt_on = MNTOPT_DEVICES; 1932168404Spjd mntopt_off = MNTOPT_NODEVICES; 1933168404Spjd break; 1934168404Spjd 1935168404Spjd case ZFS_PROP_EXEC: 1936168404Spjd mntopt_on = MNTOPT_EXEC; 1937168404Spjd mntopt_off = MNTOPT_NOEXEC; 1938168404Spjd break; 1939168404Spjd 1940168404Spjd case ZFS_PROP_READONLY: 1941168404Spjd mntopt_on = MNTOPT_RO; 1942168404Spjd mntopt_off = MNTOPT_RW; 1943168404Spjd break; 1944168404Spjd 1945168404Spjd case ZFS_PROP_SETUID: 1946168404Spjd mntopt_on = MNTOPT_SETUID; 1947168404Spjd mntopt_off = MNTOPT_NOSETUID; 1948168404Spjd break; 1949168404Spjd 1950168404Spjd case ZFS_PROP_XATTR: 1951168404Spjd mntopt_on = MNTOPT_XATTR; 1952168404Spjd mntopt_off = MNTOPT_NOXATTR; 1953168404Spjd break; 1954185029Spjd 1955185029Spjd case ZFS_PROP_NBMAND: 1956185029Spjd mntopt_on = MNTOPT_NBMAND; 1957185029Spjd mntopt_off = MNTOPT_NONBMAND; 1958185029Spjd break; 1959168404Spjd } 1960168404Spjd 1961168404Spjd /* 1962168404Spjd * Because looking up the mount options is potentially expensive 1963168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1964168404Spjd * we're looking up a property which requires its presence. 1965168404Spjd */ 1966168404Spjd if (!zhp->zfs_mntcheck && 1967168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1968209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1969209962Smm struct mnttab entry; 1970168404Spjd 1971209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1972209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1973168404Spjd entry.mnt_mntopts); 1974168404Spjd if (zhp->zfs_mntopts == NULL) 1975168404Spjd return (-1); 1976168404Spjd } 1977168404Spjd 1978168404Spjd zhp->zfs_mntcheck = B_TRUE; 1979168404Spjd } 1980168404Spjd 1981168404Spjd if (zhp->zfs_mntopts == NULL) 1982168404Spjd mnt.mnt_mntopts = ""; 1983168404Spjd else 1984168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1985168404Spjd 1986168404Spjd switch (prop) { 1987168404Spjd case ZFS_PROP_ATIME: 1988168404Spjd case ZFS_PROP_DEVICES: 1989168404Spjd case ZFS_PROP_EXEC: 1990168404Spjd case ZFS_PROP_READONLY: 1991168404Spjd case ZFS_PROP_SETUID: 1992168404Spjd case ZFS_PROP_XATTR: 1993185029Spjd case ZFS_PROP_NBMAND: 1994168404Spjd *val = getprop_uint64(zhp, prop, source); 1995168404Spjd 1996219089Spjd if (received) 1997219089Spjd break; 1998219089Spjd 1999168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 2000168404Spjd *val = B_TRUE; 2001168404Spjd if (src) 2002185029Spjd *src = ZPROP_SRC_TEMPORARY; 2003168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 2004168404Spjd *val = B_FALSE; 2005168404Spjd if (src) 2006185029Spjd *src = ZPROP_SRC_TEMPORARY; 2007168404Spjd } 2008168404Spjd break; 2009168404Spjd 2010168404Spjd case ZFS_PROP_CANMOUNT: 2011219089Spjd case ZFS_PROP_VOLSIZE: 2012168404Spjd case ZFS_PROP_QUOTA: 2013185029Spjd case ZFS_PROP_REFQUOTA: 2014168404Spjd case ZFS_PROP_RESERVATION: 2015185029Spjd case ZFS_PROP_REFRESERVATION: 2016264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2017264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2018264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2019264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2020168404Spjd *val = getprop_uint64(zhp, prop, source); 2021219089Spjd 2022219089Spjd if (*source == NULL) { 2023219089Spjd /* not default, must be local */ 2024168404Spjd *source = zhp->zfs_name; 2025219089Spjd } 2026168404Spjd break; 2027168404Spjd 2028168404Spjd case ZFS_PROP_MOUNTED: 2029168404Spjd *val = (zhp->zfs_mntopts != NULL); 2030168404Spjd break; 2031168404Spjd 2032168404Spjd case ZFS_PROP_NUMCLONES: 2033168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 2034168404Spjd break; 2035168404Spjd 2036185029Spjd case ZFS_PROP_VERSION: 2037185029Spjd case ZFS_PROP_NORMALIZE: 2038185029Spjd case ZFS_PROP_UTF8ONLY: 2039185029Spjd case ZFS_PROP_CASE: 2040185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 2041185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 2042185029Spjd return (-1); 2043185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2044185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 2045185029Spjd zcmd_free_nvlists(&zc); 2046219089Spjd return (-1); 2047185029Spjd } 2048185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 2049185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 2050185029Spjd val) != 0) { 2051185029Spjd zcmd_free_nvlists(&zc); 2052219089Spjd return (-1); 2053185029Spjd } 2054185029Spjd if (zplprops) 2055185029Spjd nvlist_free(zplprops); 2056185029Spjd zcmd_free_nvlists(&zc); 2057185029Spjd break; 2058185029Spjd 2059253819Sdelphij case ZFS_PROP_INCONSISTENT: 2060253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 2061253819Sdelphij break; 2062253819Sdelphij 2063168404Spjd default: 2064185029Spjd switch (zfs_prop_get_type(prop)) { 2065185029Spjd case PROP_TYPE_NUMBER: 2066185029Spjd case PROP_TYPE_INDEX: 2067185029Spjd *val = getprop_uint64(zhp, prop, source); 2068185029Spjd /* 2069209962Smm * If we tried to use a default value for a 2070185029Spjd * readonly property, it means that it was not 2071219089Spjd * present. 2072185029Spjd */ 2073185029Spjd if (zfs_prop_readonly(prop) && 2074219089Spjd *source != NULL && (*source)[0] == '\0') { 2075219089Spjd *source = NULL; 2076185029Spjd } 2077185029Spjd break; 2078185029Spjd 2079185029Spjd case PROP_TYPE_STRING: 2080185029Spjd default: 2081185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2082185029Spjd "cannot get non-numeric property")); 2083185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2084185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2085185029Spjd } 2086168404Spjd } 2087168404Spjd 2088168404Spjd return (0); 2089168404Spjd} 2090168404Spjd 2091168404Spjd/* 2092168404Spjd * Calculate the source type, given the raw source string. 2093168404Spjd */ 2094168404Spjdstatic void 2095185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2096168404Spjd char *statbuf, size_t statlen) 2097168404Spjd{ 2098185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2099168404Spjd return; 2100168404Spjd 2101168404Spjd if (source == NULL) { 2102185029Spjd *srctype = ZPROP_SRC_NONE; 2103168404Spjd } else if (source[0] == '\0') { 2104185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2105219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2106219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2107168404Spjd } else { 2108168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2109185029Spjd *srctype = ZPROP_SRC_LOCAL; 2110168404Spjd } else { 2111168404Spjd (void) strlcpy(statbuf, source, statlen); 2112185029Spjd *srctype = ZPROP_SRC_INHERITED; 2113168404Spjd } 2114168404Spjd } 2115168404Spjd 2116168404Spjd} 2117168404Spjd 2118219089Spjdint 2119219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2120219089Spjd size_t proplen, boolean_t literal) 2121219089Spjd{ 2122219089Spjd zfs_prop_t prop; 2123219089Spjd int err = 0; 2124219089Spjd 2125219089Spjd if (zhp->zfs_recvd_props == NULL) 2126219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2127219089Spjd return (-1); 2128219089Spjd 2129219089Spjd prop = zfs_name_to_prop(propname); 2130219089Spjd 2131219089Spjd if (prop != ZPROP_INVAL) { 2132219089Spjd uint64_t cookie; 2133219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2134219089Spjd return (-1); 2135219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2136219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2137219089Spjd NULL, NULL, 0, literal); 2138219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2139219089Spjd } else { 2140219089Spjd nvlist_t *propval; 2141219089Spjd char *recvdval; 2142219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2143219089Spjd propname, &propval) != 0) 2144219089Spjd return (-1); 2145219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2146219089Spjd &recvdval) == 0); 2147219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2148219089Spjd } 2149219089Spjd 2150219089Spjd return (err == 0 ? 0 : -1); 2151219089Spjd} 2152219089Spjd 2153228103Smmstatic int 2154228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2155228103Smm{ 2156228103Smm nvlist_t *value; 2157228103Smm nvpair_t *pair; 2158228103Smm 2159228103Smm value = zfs_get_clones_nvl(zhp); 2160228103Smm if (value == NULL) 2161228103Smm return (-1); 2162228103Smm 2163228103Smm propbuf[0] = '\0'; 2164228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2165228103Smm pair = nvlist_next_nvpair(value, pair)) { 2166228103Smm if (propbuf[0] != '\0') 2167228103Smm (void) strlcat(propbuf, ",", proplen); 2168228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2169228103Smm } 2170228103Smm 2171228103Smm return (0); 2172228103Smm} 2173228103Smm 2174228103Smmstruct get_clones_arg { 2175228103Smm uint64_t numclones; 2176228103Smm nvlist_t *value; 2177228103Smm const char *origin; 2178228103Smm char buf[ZFS_MAXNAMELEN]; 2179228103Smm}; 2180228103Smm 2181228103Smmint 2182228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2183228103Smm{ 2184228103Smm struct get_clones_arg *gca = arg; 2185228103Smm 2186228103Smm if (gca->numclones == 0) { 2187228103Smm zfs_close(zhp); 2188228103Smm return (0); 2189228103Smm } 2190228103Smm 2191228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2192228103Smm NULL, NULL, 0, B_TRUE) != 0) 2193228103Smm goto out; 2194228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2195248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2196228103Smm gca->numclones--; 2197228103Smm } 2198228103Smm 2199228103Smmout: 2200228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2201228103Smm zfs_close(zhp); 2202228103Smm return (0); 2203228103Smm} 2204228103Smm 2205228103Smmnvlist_t * 2206228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2207228103Smm{ 2208228103Smm nvlist_t *nv, *value; 2209228103Smm 2210228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2211228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2212228103Smm struct get_clones_arg gca; 2213228103Smm 2214228103Smm /* 2215228103Smm * if this is a snapshot, then the kernel wasn't able 2216228103Smm * to get the clones. Do it by slowly iterating. 2217228103Smm */ 2218228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2219228103Smm return (NULL); 2220228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2221228103Smm return (NULL); 2222228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2223228103Smm nvlist_free(nv); 2224228103Smm return (NULL); 2225228103Smm } 2226228103Smm 2227228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2228228103Smm gca.value = value; 2229228103Smm gca.origin = zhp->zfs_name; 2230228103Smm 2231228103Smm if (gca.numclones != 0) { 2232228103Smm zfs_handle_t *root; 2233228103Smm char pool[ZFS_MAXNAMELEN]; 2234228103Smm char *cp = pool; 2235228103Smm 2236228103Smm /* get the pool name */ 2237228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2238228103Smm (void) strsep(&cp, "/@"); 2239228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2240228103Smm ZFS_TYPE_FILESYSTEM); 2241228103Smm 2242228103Smm (void) get_clones_cb(root, &gca); 2243228103Smm } 2244228103Smm 2245228103Smm if (gca.numclones != 0 || 2246228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2247228103Smm nvlist_add_nvlist(zhp->zfs_props, 2248228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2249228103Smm nvlist_free(nv); 2250228103Smm nvlist_free(value); 2251228103Smm return (NULL); 2252228103Smm } 2253228103Smm nvlist_free(nv); 2254228103Smm nvlist_free(value); 2255228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2256228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2257228103Smm } 2258228103Smm 2259228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2260228103Smm 2261228103Smm return (value); 2262228103Smm} 2263228103Smm 2264168404Spjd/* 2265168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2266168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2267168404Spjd * human-readable form. 2268168404Spjd * 2269168404Spjd * Returns 0 on success, or -1 on error. 2270168404Spjd */ 2271168404Spjdint 2272168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2273185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2274168404Spjd{ 2275168404Spjd char *source = NULL; 2276168404Spjd uint64_t val; 2277289362Smav const char *str; 2278168404Spjd const char *strval; 2279219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2280168404Spjd 2281168404Spjd /* 2282168404Spjd * Check to see if this property applies to our object 2283168404Spjd */ 2284168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2285168404Spjd return (-1); 2286168404Spjd 2287219089Spjd if (received && zfs_prop_readonly(prop)) 2288219089Spjd return (-1); 2289219089Spjd 2290168404Spjd if (src) 2291185029Spjd *src = ZPROP_SRC_NONE; 2292168404Spjd 2293168404Spjd switch (prop) { 2294168404Spjd case ZFS_PROP_CREATION: 2295168404Spjd /* 2296168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2297168404Spjd * this into a string unless 'literal' is specified. 2298168404Spjd */ 2299168404Spjd { 2300168404Spjd val = getprop_uint64(zhp, prop, &source); 2301168404Spjd time_t time = (time_t)val; 2302168404Spjd struct tm t; 2303168404Spjd 2304168404Spjd if (literal || 2305168404Spjd localtime_r(&time, &t) == NULL || 2306168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2307168404Spjd &t) == 0) 2308168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2309168404Spjd } 2310168404Spjd break; 2311168404Spjd 2312168404Spjd case ZFS_PROP_MOUNTPOINT: 2313168404Spjd /* 2314168404Spjd * Getting the precise mountpoint can be tricky. 2315168404Spjd * 2316168404Spjd * - for 'none' or 'legacy', return those values. 2317168404Spjd * - for inherited mountpoints, we want to take everything 2318168404Spjd * after our ancestor and append it to the inherited value. 2319168404Spjd * 2320168404Spjd * If the pool has an alternate root, we want to prepend that 2321168404Spjd * root to any values we return. 2322168404Spjd */ 2323185029Spjd 2324168404Spjd str = getprop_string(zhp, prop, &source); 2325168404Spjd 2326185029Spjd if (str[0] == '/') { 2327185029Spjd char buf[MAXPATHLEN]; 2328185029Spjd char *root = buf; 2329219089Spjd const char *relpath; 2330168404Spjd 2331219089Spjd /* 2332219089Spjd * If we inherit the mountpoint, even from a dataset 2333219089Spjd * with a received value, the source will be the path of 2334219089Spjd * the dataset we inherit from. If source is 2335219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2336219089Spjd * inherited. 2337219089Spjd */ 2338219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2339219089Spjd relpath = ""; 2340219089Spjd } else { 2341219089Spjd relpath = zhp->zfs_name + strlen(source); 2342219089Spjd if (relpath[0] == '/') 2343219089Spjd relpath++; 2344219089Spjd } 2345185029Spjd 2346185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2347263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2348263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2349185029Spjd root[0] = '\0'; 2350185029Spjd /* 2351185029Spjd * Special case an alternate root of '/'. This will 2352185029Spjd * avoid having multiple leading slashes in the 2353185029Spjd * mountpoint path. 2354185029Spjd */ 2355185029Spjd if (strcmp(root, "/") == 0) 2356185029Spjd root++; 2357185029Spjd 2358185029Spjd /* 2359185029Spjd * If the mountpoint is '/' then skip over this 2360185029Spjd * if we are obtaining either an alternate root or 2361185029Spjd * an inherited mountpoint. 2362185029Spjd */ 2363185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2364185029Spjd relpath[0] != '\0')) 2365168404Spjd str++; 2366168404Spjd 2367168404Spjd if (relpath[0] == '\0') 2368168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2369168404Spjd root, str); 2370168404Spjd else 2371168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2372168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2373168404Spjd relpath); 2374168404Spjd } else { 2375168404Spjd /* 'legacy' or 'none' */ 2376168404Spjd (void) strlcpy(propbuf, str, proplen); 2377168404Spjd } 2378168404Spjd 2379168404Spjd break; 2380168404Spjd 2381168404Spjd case ZFS_PROP_ORIGIN: 2382289362Smav str = getprop_string(zhp, prop, &source); 2383289362Smav if (str == NULL) 2384168404Spjd return (-1); 2385289362Smav (void) strlcpy(propbuf, str, proplen); 2386168404Spjd break; 2387168404Spjd 2388228103Smm case ZFS_PROP_CLONES: 2389228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2390228103Smm return (-1); 2391228103Smm break; 2392228103Smm 2393168404Spjd case ZFS_PROP_QUOTA: 2394185029Spjd case ZFS_PROP_REFQUOTA: 2395168404Spjd case ZFS_PROP_RESERVATION: 2396185029Spjd case ZFS_PROP_REFRESERVATION: 2397185029Spjd 2398168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2399168404Spjd return (-1); 2400168404Spjd 2401168404Spjd /* 2402168404Spjd * If quota or reservation is 0, we translate this into 'none' 2403168404Spjd * (unless literal is set), and indicate that it's the default 2404168404Spjd * value. Otherwise, we print the number nicely and indicate 2405168404Spjd * that its set locally. 2406168404Spjd */ 2407168404Spjd if (val == 0) { 2408168404Spjd if (literal) 2409168404Spjd (void) strlcpy(propbuf, "0", proplen); 2410168404Spjd else 2411168404Spjd (void) strlcpy(propbuf, "none", proplen); 2412168404Spjd } else { 2413168404Spjd if (literal) 2414168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2415168404Spjd (u_longlong_t)val); 2416168404Spjd else 2417168404Spjd zfs_nicenum(val, propbuf, proplen); 2418168404Spjd } 2419168404Spjd break; 2420168404Spjd 2421264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2422264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2423264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2424264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2425264835Sdelphij 2426264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2427264835Sdelphij return (-1); 2428264835Sdelphij 2429264835Sdelphij /* 2430264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2431264835Sdelphij * literal is set), and indicate that it's the default value. 2432264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2433264835Sdelphij * set locally. 2434264835Sdelphij */ 2435264835Sdelphij if (literal) { 2436264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2437264835Sdelphij (u_longlong_t)val); 2438264835Sdelphij } else if (val == UINT64_MAX) { 2439264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2440264835Sdelphij } else { 2441264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2442264835Sdelphij } 2443264835Sdelphij break; 2444264835Sdelphij 2445223623Smm case ZFS_PROP_REFRATIO: 2446168404Spjd case ZFS_PROP_COMPRESSRATIO: 2447168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2448168404Spjd return (-1); 2449219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2450219089Spjd (u_longlong_t)(val / 100), 2451219089Spjd (u_longlong_t)(val % 100)); 2452168404Spjd break; 2453168404Spjd 2454168404Spjd case ZFS_PROP_TYPE: 2455168404Spjd switch (zhp->zfs_type) { 2456168404Spjd case ZFS_TYPE_FILESYSTEM: 2457168404Spjd str = "filesystem"; 2458168404Spjd break; 2459168404Spjd case ZFS_TYPE_VOLUME: 2460168404Spjd str = "volume"; 2461168404Spjd break; 2462168404Spjd case ZFS_TYPE_SNAPSHOT: 2463168404Spjd str = "snapshot"; 2464168404Spjd break; 2465260183Sdelphij case ZFS_TYPE_BOOKMARK: 2466260183Sdelphij str = "bookmark"; 2467260183Sdelphij break; 2468168404Spjd default: 2469168404Spjd abort(); 2470168404Spjd } 2471168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2472168404Spjd break; 2473168404Spjd 2474168404Spjd case ZFS_PROP_MOUNTED: 2475168404Spjd /* 2476168404Spjd * The 'mounted' property is a pseudo-property that described 2477168404Spjd * whether the filesystem is currently mounted. Even though 2478168404Spjd * it's a boolean value, the typical values of "on" and "off" 2479168404Spjd * don't make sense, so we translate to "yes" and "no". 2480168404Spjd */ 2481168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2482168404Spjd src, &source, &val) != 0) 2483168404Spjd return (-1); 2484168404Spjd if (val) 2485168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2486168404Spjd else 2487168404Spjd (void) strlcpy(propbuf, "no", proplen); 2488168404Spjd break; 2489168404Spjd 2490168404Spjd case ZFS_PROP_NAME: 2491168404Spjd /* 2492168404Spjd * The 'name' property is a pseudo-property derived from the 2493168404Spjd * dataset name. It is presented as a real property to simplify 2494168404Spjd * consumers. 2495168404Spjd */ 2496168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2497168404Spjd break; 2498168404Spjd 2499219089Spjd case ZFS_PROP_MLSLABEL: 2500219089Spjd { 2501277300Ssmh#ifdef illumos 2502219089Spjd m_label_t *new_sl = NULL; 2503219089Spjd char *ascii = NULL; /* human readable label */ 2504219089Spjd 2505219089Spjd (void) strlcpy(propbuf, 2506219089Spjd getprop_string(zhp, prop, &source), proplen); 2507219089Spjd 2508219089Spjd if (literal || (strcasecmp(propbuf, 2509219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2510219089Spjd break; 2511219089Spjd 2512219089Spjd /* 2513219089Spjd * Try to translate the internal hex string to 2514219089Spjd * human-readable output. If there are any 2515219089Spjd * problems just use the hex string. 2516219089Spjd */ 2517219089Spjd 2518219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2519219089Spjd L_NO_CORRECTION, NULL) == -1) { 2520219089Spjd m_label_free(new_sl); 2521219089Spjd break; 2522219089Spjd } 2523219089Spjd 2524219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2525219089Spjd DEF_NAMES) != 0) { 2526219089Spjd if (ascii) 2527219089Spjd free(ascii); 2528219089Spjd m_label_free(new_sl); 2529219089Spjd break; 2530219089Spjd } 2531219089Spjd m_label_free(new_sl); 2532219089Spjd 2533219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2534219089Spjd free(ascii); 2535277300Ssmh#else /* !illumos */ 2536219089Spjd propbuf[0] = '\0'; 2537277300Ssmh#endif /* illumos */ 2538219089Spjd } 2539219089Spjd break; 2540219089Spjd 2541236705Smm case ZFS_PROP_GUID: 2542236705Smm /* 2543236705Smm * GUIDs are stored as numbers, but they are identifiers. 2544236705Smm * We don't want them to be pretty printed, because pretty 2545236705Smm * printing mangles the ID into a truncated and useless value. 2546236705Smm */ 2547236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2548236705Smm return (-1); 2549236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2550236705Smm break; 2551236705Smm 2552168404Spjd default: 2553185029Spjd switch (zfs_prop_get_type(prop)) { 2554185029Spjd case PROP_TYPE_NUMBER: 2555185029Spjd if (get_numeric_property(zhp, prop, src, 2556185029Spjd &source, &val) != 0) 2557185029Spjd return (-1); 2558185029Spjd if (literal) 2559185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2560185029Spjd (u_longlong_t)val); 2561185029Spjd else 2562185029Spjd zfs_nicenum(val, propbuf, proplen); 2563185029Spjd break; 2564185029Spjd 2565185029Spjd case PROP_TYPE_STRING: 2566289362Smav str = getprop_string(zhp, prop, &source); 2567289362Smav if (str == NULL) 2568289362Smav return (-1); 2569289362Smav (void) strlcpy(propbuf, str, proplen); 2570185029Spjd break; 2571185029Spjd 2572185029Spjd case PROP_TYPE_INDEX: 2573185029Spjd if (get_numeric_property(zhp, prop, src, 2574185029Spjd &source, &val) != 0) 2575185029Spjd return (-1); 2576185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2577185029Spjd return (-1); 2578185029Spjd (void) strlcpy(propbuf, strval, proplen); 2579185029Spjd break; 2580185029Spjd 2581185029Spjd default: 2582185029Spjd abort(); 2583185029Spjd } 2584168404Spjd } 2585168404Spjd 2586168404Spjd get_source(zhp, src, source, statbuf, statlen); 2587168404Spjd 2588168404Spjd return (0); 2589168404Spjd} 2590168404Spjd 2591168404Spjd/* 2592168404Spjd * Utility function to get the given numeric property. Does no validation that 2593168404Spjd * the given property is the appropriate type; should only be used with 2594168404Spjd * hard-coded property types. 2595168404Spjd */ 2596168404Spjduint64_t 2597168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2598168404Spjd{ 2599168404Spjd char *source; 2600168404Spjd uint64_t val; 2601168404Spjd 2602185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2603168404Spjd 2604168404Spjd return (val); 2605168404Spjd} 2606168404Spjd 2607185029Spjdint 2608185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2609185029Spjd{ 2610185029Spjd char buf[64]; 2611185029Spjd 2612209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2613185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2614185029Spjd} 2615185029Spjd 2616168404Spjd/* 2617168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2618168404Spjd */ 2619168404Spjdint 2620168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2621185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2622168404Spjd{ 2623168404Spjd char *source; 2624168404Spjd 2625168404Spjd /* 2626168404Spjd * Check to see if this property applies to our object 2627168404Spjd */ 2628185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2629168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2630168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2631168404Spjd zfs_prop_to_name(prop))); 2632185029Spjd } 2633168404Spjd 2634168404Spjd if (src) 2635185029Spjd *src = ZPROP_SRC_NONE; 2636168404Spjd 2637168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2638168404Spjd return (-1); 2639168404Spjd 2640168404Spjd get_source(zhp, src, source, statbuf, statlen); 2641168404Spjd 2642168404Spjd return (0); 2643168404Spjd} 2644168404Spjd 2645209962Smmstatic int 2646209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2647209962Smm char **domainp, idmap_rid_t *ridp) 2648209962Smm{ 2649277300Ssmh#ifdef illumos 2650209962Smm idmap_get_handle_t *get_hdl = NULL; 2651209962Smm idmap_stat status; 2652209962Smm int err = EINVAL; 2653209962Smm 2654219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2655209962Smm goto out; 2656209962Smm 2657209962Smm if (isuser) { 2658209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2659209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2660209962Smm } else { 2661209962Smm err = idmap_get_sidbygid(get_hdl, id, 2662209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2663209962Smm } 2664209962Smm if (err == IDMAP_SUCCESS && 2665209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2666209962Smm status == IDMAP_SUCCESS) 2667209962Smm err = 0; 2668209962Smm else 2669209962Smm err = EINVAL; 2670209962Smmout: 2671209962Smm if (get_hdl) 2672209962Smm idmap_get_destroy(get_hdl); 2673209962Smm return (err); 2674277300Ssmh#else /* !illumos */ 2675209962Smm assert(!"invalid code path"); 2676264852Ssmh return (EINVAL); // silence compiler warning 2677277300Ssmh#endif /* illumos */ 2678209962Smm} 2679209962Smm 2680168404Spjd/* 2681209962Smm * convert the propname into parameters needed by kernel 2682209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2683209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2684209962Smm */ 2685209962Smmstatic int 2686209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2687209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2688209962Smm{ 2689209962Smm zfs_userquota_prop_t type; 2690209962Smm char *cp, *end; 2691209962Smm char *numericsid = NULL; 2692209962Smm boolean_t isuser; 2693209962Smm 2694209962Smm domain[0] = '\0'; 2695275579Sdelphij *ridp = 0; 2696209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2697209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2698209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2699209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2700209962Smm break; 2701209962Smm } 2702209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2703209962Smm return (EINVAL); 2704209962Smm *typep = type; 2705209962Smm 2706209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2707209962Smm type == ZFS_PROP_USERUSED); 2708209962Smm 2709209962Smm cp = strchr(propname, '@') + 1; 2710209962Smm 2711209962Smm if (strchr(cp, '@')) { 2712277300Ssmh#ifdef illumos 2713209962Smm /* 2714209962Smm * It's a SID name (eg "user@domain") that needs to be 2715209962Smm * turned into S-1-domainID-RID. 2716209962Smm */ 2717275579Sdelphij int flag = 0; 2718275579Sdelphij idmap_stat stat, map_stat; 2719275579Sdelphij uid_t pid; 2720275579Sdelphij idmap_rid_t rid; 2721275579Sdelphij idmap_get_handle_t *gh = NULL; 2722275579Sdelphij 2723275579Sdelphij stat = idmap_get_create(&gh); 2724275579Sdelphij if (stat != IDMAP_SUCCESS) { 2725275579Sdelphij idmap_get_destroy(gh); 2726275579Sdelphij return (ENOMEM); 2727275579Sdelphij } 2728209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2729209962Smm return (ENOENT); 2730209962Smm if (isuser) { 2731275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2732275579Sdelphij if (stat < 0) 2733275579Sdelphij return (ENOENT); 2734275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2735275579Sdelphij &rid, &map_stat); 2736209962Smm } else { 2737275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2738275579Sdelphij if (stat < 0) 2739275579Sdelphij return (ENOENT); 2740275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2741275579Sdelphij &rid, &map_stat); 2742209962Smm } 2743275579Sdelphij if (stat < 0) { 2744275579Sdelphij idmap_get_destroy(gh); 2745209962Smm return (ENOENT); 2746209962Smm } 2747275579Sdelphij stat = idmap_get_mappings(gh); 2748275579Sdelphij idmap_get_destroy(gh); 2749275579Sdelphij 2750275579Sdelphij if (stat < 0) { 2751275579Sdelphij return (ENOENT); 2752275579Sdelphij } 2753209962Smm if (numericsid == NULL) 2754209962Smm return (ENOENT); 2755209962Smm cp = numericsid; 2756275579Sdelphij *ridp = rid; 2757209962Smm /* will be further decoded below */ 2758277300Ssmh#else /* !illumos */ 2759219089Spjd return (ENOENT); 2760277300Ssmh#endif /* illumos */ 2761209962Smm } 2762209962Smm 2763209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2764209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2765209962Smm (void) strlcpy(domain, cp, domainlen); 2766209962Smm errno = 0; 2767275579Sdelphij if (*ridp == 0) { 2768275579Sdelphij cp = strrchr(domain, '-'); 2769275579Sdelphij *cp = '\0'; 2770275579Sdelphij cp++; 2771275579Sdelphij *ridp = strtoull(cp, &end, 10); 2772275579Sdelphij } else { 2773275579Sdelphij end = ""; 2774275579Sdelphij } 2775209962Smm if (numericsid) { 2776209962Smm free(numericsid); 2777209962Smm numericsid = NULL; 2778209962Smm } 2779209962Smm if (errno != 0 || *end != '\0') 2780209962Smm return (EINVAL); 2781209962Smm } else if (!isdigit(*cp)) { 2782209962Smm /* 2783209962Smm * It's a user/group name (eg "user") that needs to be 2784209962Smm * turned into a uid/gid 2785209962Smm */ 2786209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2787209962Smm return (ENOENT); 2788209962Smm if (isuser) { 2789209962Smm struct passwd *pw; 2790209962Smm pw = getpwnam(cp); 2791209962Smm if (pw == NULL) 2792209962Smm return (ENOENT); 2793209962Smm *ridp = pw->pw_uid; 2794209962Smm } else { 2795209962Smm struct group *gr; 2796209962Smm gr = getgrnam(cp); 2797209962Smm if (gr == NULL) 2798209962Smm return (ENOENT); 2799209962Smm *ridp = gr->gr_gid; 2800209962Smm } 2801209962Smm } else { 2802209962Smm /* It's a user/group ID (eg "12345"). */ 2803209962Smm uid_t id = strtoul(cp, &end, 10); 2804209962Smm idmap_rid_t rid; 2805209962Smm char *mapdomain; 2806209962Smm 2807209962Smm if (*end != '\0') 2808209962Smm return (EINVAL); 2809209962Smm if (id > MAXUID) { 2810209962Smm /* It's an ephemeral ID. */ 2811209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2812209962Smm &mapdomain, &rid) != 0) 2813209962Smm return (ENOENT); 2814209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2815209962Smm *ridp = rid; 2816209962Smm } else { 2817209962Smm *ridp = id; 2818209962Smm } 2819209962Smm } 2820209962Smm 2821209962Smm ASSERT3P(numericsid, ==, NULL); 2822209962Smm return (0); 2823209962Smm} 2824209962Smm 2825209962Smmstatic int 2826209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2827209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2828209962Smm{ 2829209962Smm int err; 2830209962Smm zfs_cmd_t zc = { 0 }; 2831209962Smm 2832228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2833209962Smm 2834209962Smm err = userquota_propname_decode(propname, 2835209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2836209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2837209962Smm zc.zc_objset_type = *typep; 2838209962Smm if (err) 2839209962Smm return (err); 2840209962Smm 2841209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2842209962Smm if (err) 2843209962Smm return (err); 2844209962Smm 2845209962Smm *propvalue = zc.zc_cookie; 2846209962Smm return (0); 2847209962Smm} 2848209962Smm 2849209962Smmint 2850209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2851209962Smm uint64_t *propvalue) 2852209962Smm{ 2853209962Smm zfs_userquota_prop_t type; 2854209962Smm 2855209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2856209962Smm &type)); 2857209962Smm} 2858209962Smm 2859209962Smmint 2860209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2861209962Smm char *propbuf, int proplen, boolean_t literal) 2862209962Smm{ 2863209962Smm int err; 2864209962Smm uint64_t propvalue; 2865209962Smm zfs_userquota_prop_t type; 2866209962Smm 2867209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2868209962Smm &type); 2869209962Smm 2870209962Smm if (err) 2871209962Smm return (err); 2872209962Smm 2873209962Smm if (literal) { 2874209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2875209962Smm } else if (propvalue == 0 && 2876209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2877209962Smm (void) strlcpy(propbuf, "none", proplen); 2878209962Smm } else { 2879209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2880209962Smm } 2881209962Smm return (0); 2882209962Smm} 2883209962Smm 2884228103Smmint 2885228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2886228103Smm uint64_t *propvalue) 2887168404Spjd{ 2888228103Smm int err; 2889228103Smm zfs_cmd_t zc = { 0 }; 2890228103Smm const char *snapname; 2891168404Spjd 2892228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2893168404Spjd 2894228103Smm snapname = strchr(propname, '@') + 1; 2895228103Smm if (strchr(snapname, '@')) { 2896228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2897228103Smm } else { 2898228103Smm /* snapname is the short name, append it to zhp's fsname */ 2899228103Smm char *cp; 2900209962Smm 2901228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2902228103Smm sizeof (zc.zc_value)); 2903228103Smm cp = strchr(zc.zc_value, '@'); 2904228103Smm if (cp != NULL) 2905228103Smm *cp = '\0'; 2906228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2907228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2908228103Smm } 2909209962Smm 2910228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2911228103Smm if (err) 2912228103Smm return (err); 2913228103Smm 2914228103Smm *propvalue = zc.zc_cookie; 2915228103Smm return (0); 2916209962Smm} 2917209962Smm 2918168404Spjdint 2919228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2920228103Smm char *propbuf, int proplen, boolean_t literal) 2921168404Spjd{ 2922228103Smm int err; 2923228103Smm uint64_t propvalue; 2924168404Spjd 2925228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2926185029Spjd 2927228103Smm if (err) 2928228103Smm return (err); 2929209962Smm 2930228103Smm if (literal) { 2931228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2932228103Smm } else { 2933228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2934168404Spjd } 2935228103Smm return (0); 2936168404Spjd} 2937168404Spjd 2938168404Spjd/* 2939228103Smm * Returns the name of the given zfs handle. 2940168404Spjd */ 2941228103Smmconst char * 2942228103Smmzfs_get_name(const zfs_handle_t *zhp) 2943168404Spjd{ 2944228103Smm return (zhp->zfs_name); 2945228103Smm} 2946168404Spjd 2947228103Smm/* 2948228103Smm * Returns the type of the given zfs handle. 2949228103Smm */ 2950228103Smmzfs_type_t 2951228103Smmzfs_get_type(const zfs_handle_t *zhp) 2952228103Smm{ 2953228103Smm return (zhp->zfs_type); 2954168404Spjd} 2955168404Spjd 2956168404Spjd/* 2957219089Spjd * Is one dataset name a child dataset of another? 2958219089Spjd * 2959219089Spjd * Needs to handle these cases: 2960219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2961219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2962219089Spjd * Descendant? No. No. No. Yes. 2963219089Spjd */ 2964219089Spjdstatic boolean_t 2965219089Spjdis_descendant(const char *ds1, const char *ds2) 2966219089Spjd{ 2967219089Spjd size_t d1len = strlen(ds1); 2968219089Spjd 2969219089Spjd /* ds2 can't be a descendant if it's smaller */ 2970219089Spjd if (strlen(ds2) < d1len) 2971219089Spjd return (B_FALSE); 2972219089Spjd 2973219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2974219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2975219089Spjd} 2976219089Spjd 2977219089Spjd/* 2978168404Spjd * Given a complete name, return just the portion that refers to the parent. 2979228103Smm * Will return -1 if there is no parent (path is just the name of the 2980228103Smm * pool). 2981168404Spjd */ 2982168404Spjdstatic int 2983168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2984168404Spjd{ 2985228103Smm char *slashp; 2986168404Spjd 2987228103Smm (void) strlcpy(buf, path, buflen); 2988228103Smm 2989228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 2990168404Spjd return (-1); 2991228103Smm *slashp = '\0'; 2992168404Spjd 2993168404Spjd return (0); 2994168404Spjd} 2995168404Spjd 2996168404Spjd/* 2997185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 2998185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 2999185029Spjd * closest existing ancestor for the given path. In prefixlen return the 3000185029Spjd * length of already existing prefix of the given path. We also fetch the 3001185029Spjd * 'zoned' property, which is used to validate property settings when creating 3002185029Spjd * new datasets. 3003168404Spjd */ 3004168404Spjdstatic int 3005185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 3006185029Spjd boolean_t accept_ancestor, int *prefixlen) 3007168404Spjd{ 3008168404Spjd zfs_cmd_t zc = { 0 }; 3009168404Spjd char parent[ZFS_MAXNAMELEN]; 3010168404Spjd char *slash; 3011168404Spjd zfs_handle_t *zhp; 3012168404Spjd char errbuf[1024]; 3013219089Spjd uint64_t is_zoned; 3014168404Spjd 3015209962Smm (void) snprintf(errbuf, sizeof (errbuf), 3016209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 3017168404Spjd 3018168404Spjd /* get parent, and check to see if this is just a pool */ 3019168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 3020168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3021168404Spjd "missing dataset name")); 3022168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3023168404Spjd } 3024168404Spjd 3025168404Spjd /* check to see if the pool exists */ 3026168404Spjd if ((slash = strchr(parent, '/')) == NULL) 3027168404Spjd slash = parent + strlen(parent); 3028168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 3029168404Spjd zc.zc_name[slash - parent] = '\0'; 3030168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 3031168404Spjd errno == ENOENT) { 3032168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3033168404Spjd "no such pool '%s'"), zc.zc_name); 3034168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3035168404Spjd } 3036168404Spjd 3037168404Spjd /* check to see if the parent dataset exists */ 3038185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 3039185029Spjd if (errno == ENOENT && accept_ancestor) { 3040185029Spjd /* 3041185029Spjd * Go deeper to find an ancestor, give up on top level. 3042185029Spjd */ 3043185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 3044185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3045185029Spjd "no such pool '%s'"), zc.zc_name); 3046185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3047185029Spjd } 3048185029Spjd } else if (errno == ENOENT) { 3049168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3050168404Spjd "parent does not exist")); 3051168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3052185029Spjd } else 3053168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3054168404Spjd } 3055168404Spjd 3056219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 3057219089Spjd if (zoned != NULL) 3058219089Spjd *zoned = is_zoned; 3059219089Spjd 3060168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 3061219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 3062168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 3063168404Spjd zfs_close(zhp); 3064168404Spjd return (-1); 3065168404Spjd } 3066168404Spjd 3067168404Spjd /* make sure parent is a filesystem */ 3068168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3069168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3070168404Spjd "parent is not a filesystem")); 3071168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3072168404Spjd zfs_close(zhp); 3073168404Spjd return (-1); 3074168404Spjd } 3075168404Spjd 3076168404Spjd zfs_close(zhp); 3077185029Spjd if (prefixlen != NULL) 3078185029Spjd *prefixlen = strlen(parent); 3079168404Spjd return (0); 3080168404Spjd} 3081168404Spjd 3082168404Spjd/* 3083185029Spjd * Finds whether the dataset of the given type(s) exists. 3084185029Spjd */ 3085185029Spjdboolean_t 3086185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3087185029Spjd{ 3088185029Spjd zfs_handle_t *zhp; 3089185029Spjd 3090185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3091185029Spjd return (B_FALSE); 3092185029Spjd 3093185029Spjd /* 3094185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3095185029Spjd */ 3096185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3097185029Spjd int ds_type = zhp->zfs_type; 3098185029Spjd 3099185029Spjd zfs_close(zhp); 3100185029Spjd if (types & ds_type) 3101185029Spjd return (B_TRUE); 3102185029Spjd } 3103185029Spjd return (B_FALSE); 3104185029Spjd} 3105185029Spjd 3106185029Spjd/* 3107185029Spjd * Given a path to 'target', create all the ancestors between 3108185029Spjd * the prefixlen portion of the path, and the target itself. 3109185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3110185029Spjd */ 3111185029Spjdint 3112185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3113185029Spjd{ 3114185029Spjd zfs_handle_t *h; 3115185029Spjd char *cp; 3116185029Spjd const char *opname; 3117185029Spjd 3118185029Spjd /* make sure prefix exists */ 3119185029Spjd cp = target + prefixlen; 3120185029Spjd if (*cp != '/') { 3121185029Spjd assert(strchr(cp, '/') == NULL); 3122185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3123185029Spjd } else { 3124185029Spjd *cp = '\0'; 3125185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3126185029Spjd *cp = '/'; 3127185029Spjd } 3128185029Spjd if (h == NULL) 3129185029Spjd return (-1); 3130185029Spjd zfs_close(h); 3131185029Spjd 3132185029Spjd /* 3133185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3134185029Spjd * up to the prefixlen-long one. 3135185029Spjd */ 3136185029Spjd for (cp = target + prefixlen + 1; 3137185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 3138185029Spjd 3139185029Spjd *cp = '\0'; 3140185029Spjd 3141185029Spjd h = make_dataset_handle(hdl, target); 3142185029Spjd if (h) { 3143185029Spjd /* it already exists, nothing to do here */ 3144185029Spjd zfs_close(h); 3145185029Spjd continue; 3146185029Spjd } 3147185029Spjd 3148185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3149185029Spjd NULL) != 0) { 3150185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3151185029Spjd goto ancestorerr; 3152185029Spjd } 3153185029Spjd 3154185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3155185029Spjd if (h == NULL) { 3156185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3157185029Spjd goto ancestorerr; 3158185029Spjd } 3159185029Spjd 3160185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3161185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3162185029Spjd goto ancestorerr; 3163185029Spjd } 3164185029Spjd 3165185029Spjd if (zfs_share(h) != 0) { 3166185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3167185029Spjd goto ancestorerr; 3168185029Spjd } 3169185029Spjd 3170185029Spjd zfs_close(h); 3171185029Spjd } 3172185029Spjd 3173185029Spjd return (0); 3174185029Spjd 3175185029Spjdancestorerr: 3176185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3177185029Spjd "failed to %s ancestor '%s'"), opname, target); 3178185029Spjd return (-1); 3179185029Spjd} 3180185029Spjd 3181185029Spjd/* 3182185029Spjd * Creates non-existing ancestors of the given path. 3183185029Spjd */ 3184185029Spjdint 3185185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3186185029Spjd{ 3187185029Spjd int prefix; 3188185029Spjd char *path_copy; 3189185029Spjd int rc; 3190185029Spjd 3191219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3192185029Spjd return (-1); 3193185029Spjd 3194185029Spjd if ((path_copy = strdup(path)) != NULL) { 3195185029Spjd rc = create_parents(hdl, path_copy, prefix); 3196185029Spjd free(path_copy); 3197185029Spjd } 3198185029Spjd if (path_copy == NULL || rc != 0) 3199185029Spjd return (-1); 3200185029Spjd 3201185029Spjd return (0); 3202185029Spjd} 3203185029Spjd 3204185029Spjd/* 3205168404Spjd * Create a new filesystem or volume. 3206168404Spjd */ 3207168404Spjdint 3208168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3209168404Spjd nvlist_t *props) 3210168404Spjd{ 3211168404Spjd int ret; 3212168404Spjd uint64_t size = 0; 3213168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3214168404Spjd char errbuf[1024]; 3215168404Spjd uint64_t zoned; 3216248571Smm dmu_objset_type_t ost; 3217168404Spjd 3218168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3219168404Spjd "cannot create '%s'"), path); 3220168404Spjd 3221168404Spjd /* validate the path, taking care to note the extended error message */ 3222185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3223168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3224168404Spjd 3225168404Spjd /* validate parents exist */ 3226185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3227168404Spjd return (-1); 3228168404Spjd 3229168404Spjd /* 3230168404Spjd * The failure modes when creating a dataset of a different type over 3231168404Spjd * one that already exists is a little strange. In particular, if you 3232168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3233168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3234168404Spjd * first try to see if the dataset exists. 3235168404Spjd */ 3236248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3237168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3238168404Spjd "dataset already exists")); 3239168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3240168404Spjd } 3241168404Spjd 3242168404Spjd if (type == ZFS_TYPE_VOLUME) 3243248571Smm ost = DMU_OST_ZVOL; 3244168404Spjd else 3245248571Smm ost = DMU_OST_ZFS; 3246168404Spjd 3247185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3248168404Spjd zoned, NULL, errbuf)) == 0) 3249168404Spjd return (-1); 3250168404Spjd 3251168404Spjd if (type == ZFS_TYPE_VOLUME) { 3252168404Spjd /* 3253168404Spjd * If we are creating a volume, the size and block size must 3254168404Spjd * satisfy a few restraints. First, the blocksize must be a 3255168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3256168404Spjd * volsize must be a multiple of the block size, and cannot be 3257168404Spjd * zero. 3258168404Spjd */ 3259168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3260168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3261168404Spjd nvlist_free(props); 3262168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3263168404Spjd "missing volume size")); 3264168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3265168404Spjd } 3266168404Spjd 3267168404Spjd if ((ret = nvlist_lookup_uint64(props, 3268168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3269168404Spjd &blocksize)) != 0) { 3270168404Spjd if (ret == ENOENT) { 3271168404Spjd blocksize = zfs_prop_default_numeric( 3272168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3273168404Spjd } else { 3274168404Spjd nvlist_free(props); 3275168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3276168404Spjd "missing volume block size")); 3277168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3278168404Spjd } 3279168404Spjd } 3280168404Spjd 3281168404Spjd if (size == 0) { 3282168404Spjd nvlist_free(props); 3283168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3284168404Spjd "volume size cannot be zero")); 3285168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3286168404Spjd } 3287168404Spjd 3288168404Spjd if (size % blocksize != 0) { 3289168404Spjd nvlist_free(props); 3290168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3291168404Spjd "volume size must be a multiple of volume block " 3292168404Spjd "size")); 3293168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3294168404Spjd } 3295168404Spjd } 3296168404Spjd 3297248571Smm /* create the dataset */ 3298248571Smm ret = lzc_create(path, ost, props); 3299168404Spjd nvlist_free(props); 3300168404Spjd 3301168404Spjd /* check for failure */ 3302168404Spjd if (ret != 0) { 3303168404Spjd char parent[ZFS_MAXNAMELEN]; 3304168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3305168404Spjd 3306168404Spjd switch (errno) { 3307168404Spjd case ENOENT: 3308168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3309168404Spjd "no such parent '%s'"), parent); 3310168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3311168404Spjd 3312168404Spjd case EINVAL: 3313168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3314168404Spjd "parent '%s' is not a filesystem"), parent); 3315168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3316168404Spjd 3317168404Spjd case EDOM: 3318168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3319168404Spjd "volume block size must be power of 2 from " 3320274337Sdelphij "512B to 128KB")); 3321168404Spjd 3322168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3323168404Spjd 3324185029Spjd case ENOTSUP: 3325185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3326185029Spjd "pool must be upgraded to set this " 3327185029Spjd "property or value")); 3328185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3329168404Spjd#ifdef _ILP32 3330168404Spjd case EOVERFLOW: 3331168404Spjd /* 3332168404Spjd * This platform can't address a volume this big. 3333168404Spjd */ 3334168404Spjd if (type == ZFS_TYPE_VOLUME) 3335168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3336168404Spjd errbuf)); 3337168404Spjd#endif 3338168404Spjd /* FALLTHROUGH */ 3339168404Spjd default: 3340168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3341168404Spjd } 3342168404Spjd } 3343168404Spjd 3344168404Spjd return (0); 3345168404Spjd} 3346168404Spjd 3347168404Spjd/* 3348168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3349238422Smm * isn't mounted, and that there are no active dependents. If the file system 3350238422Smm * does not exist this function does nothing. 3351168404Spjd */ 3352168404Spjdint 3353219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3354168404Spjd{ 3355168404Spjd zfs_cmd_t zc = { 0 }; 3356168404Spjd 3357260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3358260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3359260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3360260183Sdelphij int error = lzc_destroy_bookmarks(nv, NULL); 3361260183Sdelphij fnvlist_free(nv); 3362260183Sdelphij if (error != 0) { 3363260183Sdelphij return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3364260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3365260183Sdelphij zhp->zfs_name)); 3366260183Sdelphij } 3367260183Sdelphij return (0); 3368260183Sdelphij } 3369260183Sdelphij 3370168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3371168404Spjd 3372168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3373168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3374168404Spjd } else { 3375168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3376168404Spjd } 3377168404Spjd 3378219089Spjd zc.zc_defer_destroy = defer; 3379238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3380238422Smm errno != ENOENT) { 3381168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3382168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3383168404Spjd zhp->zfs_name)); 3384168404Spjd } 3385168404Spjd 3386168404Spjd remove_mountpoint(zhp); 3387168404Spjd 3388168404Spjd return (0); 3389168404Spjd} 3390168404Spjd 3391168404Spjdstruct destroydata { 3392228103Smm nvlist_t *nvl; 3393228103Smm const char *snapname; 3394168404Spjd}; 3395168404Spjd 3396168404Spjdstatic int 3397219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3398168404Spjd{ 3399168404Spjd struct destroydata *dd = arg; 3400168404Spjd char name[ZFS_MAXNAMELEN]; 3401219089Spjd int rv = 0; 3402168404Spjd 3403228103Smm (void) snprintf(name, sizeof (name), 3404228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3405168404Spjd 3406251646Sdelphij if (lzc_exists(name)) 3407228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3408168404Spjd 3409228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3410228103Smm zfs_close(zhp); 3411168404Spjd return (rv); 3412168404Spjd} 3413168404Spjd 3414168404Spjd/* 3415168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3416168404Spjd */ 3417168404Spjdint 3418219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3419168404Spjd{ 3420168404Spjd int ret; 3421168404Spjd struct destroydata dd = { 0 }; 3422168404Spjd 3423168404Spjd dd.snapname = snapname; 3424228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3425228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3426168404Spjd 3427251646Sdelphij if (nvlist_empty(dd.nvl)) { 3428228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3429168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3430228103Smm zhp->zfs_name, snapname); 3431228103Smm } else { 3432248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3433168404Spjd } 3434228103Smm nvlist_free(dd.nvl); 3435228103Smm return (ret); 3436228103Smm} 3437168404Spjd 3438228103Smm/* 3439248571Smm * Destroys all the snapshots named in the nvlist. 3440228103Smm */ 3441228103Smmint 3442248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3443228103Smm{ 3444228103Smm int ret; 3445248571Smm nvlist_t *errlist; 3446228103Smm 3447248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3448168404Spjd 3449248571Smm if (ret == 0) 3450248571Smm return (0); 3451248571Smm 3452251646Sdelphij if (nvlist_empty(errlist)) { 3453168404Spjd char errbuf[1024]; 3454248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3455248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3456168404Spjd 3457248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3458248571Smm } 3459248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3460248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3461248571Smm char errbuf[1024]; 3462248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3463248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3464248571Smm nvpair_name(pair)); 3465168404Spjd 3466248571Smm switch (fnvpair_value_int32(pair)) { 3467168404Spjd case EEXIST: 3468248571Smm zfs_error_aux(hdl, 3469248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3470248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3471248571Smm break; 3472168404Spjd default: 3473248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3474248571Smm break; 3475168404Spjd } 3476168404Spjd } 3477168404Spjd 3478248571Smm return (ret); 3479168404Spjd} 3480168404Spjd 3481168404Spjd/* 3482168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3483168404Spjd */ 3484168404Spjdint 3485168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3486168404Spjd{ 3487168404Spjd char parent[ZFS_MAXNAMELEN]; 3488168404Spjd int ret; 3489168404Spjd char errbuf[1024]; 3490168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3491168404Spjd uint64_t zoned; 3492168404Spjd 3493168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3494168404Spjd 3495168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3496168404Spjd "cannot create '%s'"), target); 3497168404Spjd 3498228103Smm /* validate the target/clone name */ 3499185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3500168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3501168404Spjd 3502168404Spjd /* validate parents exist */ 3503185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3504168404Spjd return (-1); 3505168404Spjd 3506168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3507168404Spjd 3508168404Spjd /* do the clone */ 3509168404Spjd 3510168404Spjd if (props) { 3511248571Smm zfs_type_t type; 3512248571Smm if (ZFS_IS_VOLUME(zhp)) { 3513248571Smm type = ZFS_TYPE_VOLUME; 3514248571Smm } else { 3515248571Smm type = ZFS_TYPE_FILESYSTEM; 3516248571Smm } 3517185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3518185029Spjd zhp, errbuf)) == NULL) 3519168404Spjd return (-1); 3520168404Spjd } 3521168404Spjd 3522248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3523248571Smm nvlist_free(props); 3524168404Spjd 3525168404Spjd if (ret != 0) { 3526168404Spjd switch (errno) { 3527168404Spjd 3528168404Spjd case ENOENT: 3529168404Spjd /* 3530168404Spjd * The parent doesn't exist. We should have caught this 3531168404Spjd * above, but there may a race condition that has since 3532168404Spjd * destroyed the parent. 3533168404Spjd * 3534168404Spjd * At this point, we don't know whether it's the source 3535168404Spjd * that doesn't exist anymore, or whether the target 3536168404Spjd * dataset doesn't exist. 3537168404Spjd */ 3538168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3539168404Spjd "no such parent '%s'"), parent); 3540168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3541168404Spjd 3542168404Spjd case EXDEV: 3543168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3544168404Spjd "source and target pools differ")); 3545168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3546168404Spjd errbuf)); 3547168404Spjd 3548168404Spjd default: 3549168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3550168404Spjd errbuf)); 3551168404Spjd } 3552168404Spjd } 3553168404Spjd 3554168404Spjd return (ret); 3555168404Spjd} 3556168404Spjd 3557168404Spjd/* 3558168404Spjd * Promotes the given clone fs to be the clone parent. 3559168404Spjd */ 3560168404Spjdint 3561168404Spjdzfs_promote(zfs_handle_t *zhp) 3562168404Spjd{ 3563168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3564168404Spjd zfs_cmd_t zc = { 0 }; 3565168404Spjd char parent[MAXPATHLEN]; 3566168404Spjd int ret; 3567168404Spjd char errbuf[1024]; 3568168404Spjd 3569168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3570168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3571168404Spjd 3572168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3573168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3574168404Spjd "snapshots can not be promoted")); 3575168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3576168404Spjd } 3577168404Spjd 3578185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3579168404Spjd if (parent[0] == '\0') { 3580168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3581168404Spjd "not a cloned filesystem")); 3582168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3583168404Spjd } 3584168404Spjd 3585185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3586168404Spjd sizeof (zc.zc_value)); 3587168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3588185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3589168404Spjd 3590168404Spjd if (ret != 0) { 3591168404Spjd int save_errno = errno; 3592168404Spjd 3593168404Spjd switch (save_errno) { 3594168404Spjd case EEXIST: 3595219089Spjd /* There is a conflicting snapshot name. */ 3596168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3597219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3598219089Spjd zc.zc_string, parent); 3599168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3600168404Spjd 3601168404Spjd default: 3602168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3603168404Spjd } 3604168404Spjd } 3605168404Spjd return (ret); 3606168404Spjd} 3607168404Spjd 3608248571Smmtypedef struct snapdata { 3609248571Smm nvlist_t *sd_nvl; 3610248571Smm const char *sd_snapname; 3611248571Smm} snapdata_t; 3612248571Smm 3613248571Smmstatic int 3614248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3615248571Smm{ 3616248571Smm snapdata_t *sd = arg; 3617248571Smm char name[ZFS_MAXNAMELEN]; 3618248571Smm int rv = 0; 3619248571Smm 3620253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3621253819Sdelphij (void) snprintf(name, sizeof (name), 3622253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3623248571Smm 3624253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3625248571Smm 3626253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3627253819Sdelphij } 3628248571Smm zfs_close(zhp); 3629253819Sdelphij 3630248571Smm return (rv); 3631248571Smm} 3632248571Smm 3633168404Spjd/* 3634248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3635248571Smm * created. 3636168404Spjd */ 3637168404Spjdint 3638248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3639168404Spjd{ 3640168404Spjd int ret; 3641168404Spjd char errbuf[1024]; 3642248571Smm nvpair_t *elem; 3643248571Smm nvlist_t *errors; 3644168404Spjd 3645168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3646248571Smm "cannot create snapshots ")); 3647168404Spjd 3648248571Smm elem = NULL; 3649248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3650248571Smm const char *snapname = nvpair_name(elem); 3651168404Spjd 3652248571Smm /* validate the target name */ 3653248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3654248571Smm B_TRUE)) { 3655248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3656248571Smm dgettext(TEXT_DOMAIN, 3657248571Smm "cannot create snapshot '%s'"), snapname); 3658248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3659248571Smm } 3660248571Smm } 3661185029Spjd 3662248571Smm if (props != NULL && 3663248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3664248571Smm props, B_FALSE, NULL, errbuf)) == NULL) { 3665248571Smm return (-1); 3666248571Smm } 3667248571Smm 3668248571Smm ret = lzc_snapshot(snaps, props, &errors); 3669248571Smm 3670248571Smm if (ret != 0) { 3671248571Smm boolean_t printed = B_FALSE; 3672248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3673248571Smm elem != NULL; 3674248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3675248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3676248571Smm dgettext(TEXT_DOMAIN, 3677248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3678248571Smm (void) zfs_standard_error(hdl, 3679248571Smm fnvpair_value_int32(elem), errbuf); 3680248571Smm printed = B_TRUE; 3681185029Spjd } 3682248571Smm if (!printed) { 3683248571Smm switch (ret) { 3684248571Smm case EXDEV: 3685248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3686248571Smm "multiple snapshots of same " 3687248571Smm "fs not allowed")); 3688248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3689185029Spjd 3690248571Smm break; 3691248571Smm default: 3692248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3693248571Smm } 3694248571Smm } 3695185029Spjd } 3696185029Spjd 3697248571Smm nvlist_free(props); 3698248571Smm nvlist_free(errors); 3699248571Smm return (ret); 3700248571Smm} 3701168404Spjd 3702248571Smmint 3703248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3704248571Smm nvlist_t *props) 3705248571Smm{ 3706248571Smm int ret; 3707248571Smm snapdata_t sd = { 0 }; 3708248571Smm char fsname[ZFS_MAXNAMELEN]; 3709248571Smm char *cp; 3710248571Smm zfs_handle_t *zhp; 3711248571Smm char errbuf[1024]; 3712248571Smm 3713248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3714248571Smm "cannot snapshot %s"), path); 3715248571Smm 3716248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3717248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3718248571Smm 3719248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3720248571Smm cp = strchr(fsname, '@'); 3721248571Smm *cp = '\0'; 3722248571Smm sd.sd_snapname = cp + 1; 3723248571Smm 3724248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3725168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3726168404Spjd return (-1); 3727168404Spjd } 3728168404Spjd 3729248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3730248571Smm if (recursive) { 3731248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3732248571Smm } else { 3733248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3734168404Spjd } 3735168404Spjd 3736248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3737248571Smm nvlist_free(sd.sd_nvl); 3738168404Spjd zfs_close(zhp); 3739168404Spjd return (ret); 3740168404Spjd} 3741168404Spjd 3742168404Spjd/* 3743168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3744168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3745168404Spjd * is a dependent and we should just destroy it without checking the transaction 3746168404Spjd * group. 3747168404Spjd */ 3748168404Spjdtypedef struct rollback_data { 3749168404Spjd const char *cb_target; /* the snapshot */ 3750168404Spjd uint64_t cb_create; /* creation time reference */ 3751185029Spjd boolean_t cb_error; 3752185029Spjd boolean_t cb_force; 3753168404Spjd} rollback_data_t; 3754168404Spjd 3755168404Spjdstatic int 3756260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 3757168404Spjd{ 3758168404Spjd rollback_data_t *cbp = data; 3759260183Sdelphij prop_changelist_t *clp; 3760168404Spjd 3761260183Sdelphij /* We must destroy this clone; first unmount it */ 3762260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3763260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 3764260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 3765260183Sdelphij cbp->cb_error = B_TRUE; 3766260183Sdelphij zfs_close(zhp); 3767260183Sdelphij return (0); 3768260183Sdelphij } 3769260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 3770260183Sdelphij cbp->cb_error = B_TRUE; 3771260183Sdelphij else 3772260183Sdelphij changelist_remove(clp, zhp->zfs_name); 3773260183Sdelphij (void) changelist_postfix(clp); 3774260183Sdelphij changelist_free(clp); 3775168404Spjd 3776260183Sdelphij zfs_close(zhp); 3777260183Sdelphij return (0); 3778260183Sdelphij} 3779168404Spjd 3780260183Sdelphijstatic int 3781260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 3782260183Sdelphij{ 3783260183Sdelphij rollback_data_t *cbp = data; 3784185029Spjd 3785260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3786260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3787260183Sdelphij rollback_destroy_dependent, cbp); 3788260183Sdelphij 3789260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3790168404Spjd } 3791168404Spjd 3792168404Spjd zfs_close(zhp); 3793168404Spjd return (0); 3794168404Spjd} 3795168404Spjd 3796168404Spjd/* 3797168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3798168404Spjd * data changes since then and making it the active dataset. 3799168404Spjd * 3800260183Sdelphij * Any snapshots and bookmarks more recent than the target are 3801260183Sdelphij * destroyed, along with their dependents (i.e. clones). 3802168404Spjd */ 3803168404Spjdint 3804185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3805168404Spjd{ 3806168404Spjd rollback_data_t cb = { 0 }; 3807185029Spjd int err; 3808185029Spjd boolean_t restore_resv = 0; 3809185029Spjd uint64_t old_volsize, new_volsize; 3810185029Spjd zfs_prop_t resv_prop; 3811168404Spjd 3812185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3813185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3814168404Spjd 3815168404Spjd /* 3816239774Smm * Destroy all recent snapshots and their dependents. 3817168404Spjd */ 3818185029Spjd cb.cb_force = force; 3819168404Spjd cb.cb_target = snap->zfs_name; 3820168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3821260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 3822260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 3823168404Spjd 3824185029Spjd if (cb.cb_error) 3825185029Spjd return (-1); 3826168404Spjd 3827168404Spjd /* 3828168404Spjd * Now that we have verified that the snapshot is the latest, 3829168404Spjd * rollback to the given snapshot. 3830168404Spjd */ 3831168404Spjd 3832185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3833185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3834185029Spjd return (-1); 3835185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3836185029Spjd restore_resv = 3837185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3838168404Spjd } 3839168404Spjd 3840168404Spjd /* 3841185029Spjd * We rely on zfs_iter_children() to verify that there are no 3842185029Spjd * newer snapshots for the given dataset. Therefore, we can 3843185029Spjd * simply pass the name on to the ioctl() call. There is still 3844185029Spjd * an unlikely race condition where the user has taken a 3845185029Spjd * snapshot since we verified that this was the most recent. 3846168404Spjd */ 3847254587Sdelphij err = lzc_rollback(zhp->zfs_name, NULL, 0); 3848254587Sdelphij if (err != 0) { 3849185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3850185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3851185029Spjd zhp->zfs_name); 3852185029Spjd return (err); 3853185029Spjd } 3854168404Spjd 3855185029Spjd /* 3856185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3857185029Spjd * rollback reservation and the volsize has changed then set 3858185029Spjd * the reservation property to the post-rollback volsize. 3859185029Spjd * Make a new handle since the rollback closed the dataset. 3860185029Spjd */ 3861185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3862185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3863185029Spjd if (restore_resv) { 3864185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3865185029Spjd if (old_volsize != new_volsize) 3866185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3867185029Spjd new_volsize); 3868185029Spjd } 3869185029Spjd zfs_close(zhp); 3870185029Spjd } 3871185029Spjd return (err); 3872168404Spjd} 3873168404Spjd 3874168404Spjd/* 3875168404Spjd * Renames the given dataset. 3876168404Spjd */ 3877168404Spjdint 3878240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3879240870Spjd renameflags_t flags) 3880168404Spjd{ 3881168404Spjd int ret; 3882168404Spjd zfs_cmd_t zc = { 0 }; 3883168404Spjd char *delim; 3884168676Spjd prop_changelist_t *cl = NULL; 3885168676Spjd zfs_handle_t *zhrp = NULL; 3886168676Spjd char *parentname = NULL; 3887168404Spjd char parent[ZFS_MAXNAMELEN]; 3888226676Spjd char property[ZFS_MAXPROPLEN]; 3889168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3890168404Spjd char errbuf[1024]; 3891168404Spjd 3892168404Spjd /* if we have the same exact name, just return success */ 3893168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3894168404Spjd return (0); 3895168404Spjd 3896168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3897168404Spjd "cannot rename to '%s'"), target); 3898168404Spjd 3899240870Spjd if (source != NULL) { 3900240870Spjd /* 3901240870Spjd * This is recursive snapshots rename, put snapshot name 3902240870Spjd * (that might not exist) into zfs_name. 3903240870Spjd */ 3904240870Spjd assert(flags.recurse); 3905240870Spjd 3906240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3907240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3908240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3909240870Spjd } 3910240870Spjd 3911168404Spjd /* 3912168404Spjd * Make sure the target name is valid 3913168404Spjd */ 3914168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3915168404Spjd if ((strchr(target, '@') == NULL) || 3916168404Spjd *target == '@') { 3917168404Spjd /* 3918168404Spjd * Snapshot target name is abbreviated, 3919168404Spjd * reconstruct full dataset name 3920168404Spjd */ 3921168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3922168404Spjd sizeof (parent)); 3923168404Spjd delim = strchr(parent, '@'); 3924168404Spjd if (strchr(target, '@') == NULL) 3925168404Spjd *(++delim) = '\0'; 3926168404Spjd else 3927168404Spjd *delim = '\0'; 3928168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3929168404Spjd target = parent; 3930168404Spjd } else { 3931168404Spjd /* 3932168404Spjd * Make sure we're renaming within the same dataset. 3933168404Spjd */ 3934168404Spjd delim = strchr(target, '@'); 3935168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3936168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3937168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3938168404Spjd "snapshots must be part of same " 3939168404Spjd "dataset")); 3940168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3941168404Spjd errbuf)); 3942168404Spjd } 3943168404Spjd } 3944185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3945168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3946168404Spjd } else { 3947226705Spjd if (flags.recurse) { 3948168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3949168676Spjd "recursive rename must be a snapshot")); 3950168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3951168676Spjd } 3952168676Spjd 3953185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3954168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3955168404Spjd 3956168404Spjd /* validate parents */ 3957219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3958168404Spjd return (-1); 3959168404Spjd 3960168404Spjd /* make sure we're in the same pool */ 3961168404Spjd verify((delim = strchr(target, '/')) != NULL); 3962168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3963168404Spjd zhp->zfs_name[delim - target] != '/') { 3964168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3965168404Spjd "datasets must be within same pool")); 3966168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3967168404Spjd } 3968168404Spjd 3969168404Spjd /* new name cannot be a child of the current dataset name */ 3970219089Spjd if (is_descendant(zhp->zfs_name, target)) { 3971168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3972219089Spjd "New dataset name cannot be a descendant of " 3973168404Spjd "current dataset name")); 3974168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3975168404Spjd } 3976168404Spjd } 3977168404Spjd 3978168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 3979168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 3980168404Spjd 3981168404Spjd if (getzoneid() == GLOBAL_ZONEID && 3982168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 3983168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3984168404Spjd "dataset is used in a non-global zone")); 3985168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 3986168404Spjd } 3987168404Spjd 3988226705Spjd /* 3989226705Spjd * Avoid unmounting file systems with mountpoint property set to 3990226705Spjd * 'legacy' or 'none' even if -u option is not given. 3991226705Spjd */ 3992226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 3993226705Spjd !flags.recurse && !flags.nounmount && 3994226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 3995226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 3996226705Spjd (strcmp(property, "legacy") == 0 || 3997226705Spjd strcmp(property, "none") == 0)) { 3998226705Spjd flags.nounmount = B_TRUE; 3999226705Spjd } 4000226705Spjd if (flags.recurse) { 4001226705Spjd 4002185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 4003185029Spjd if (parentname == NULL) { 4004185029Spjd ret = -1; 4005185029Spjd goto error; 4006185029Spjd } 4007168676Spjd delim = strchr(parentname, '@'); 4008168676Spjd *delim = '\0'; 4009185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 4010168676Spjd if (zhrp == NULL) { 4011185029Spjd ret = -1; 4012185029Spjd goto error; 4013168676Spjd } 4014268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 4015226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 4016235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 4017235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 4018168676Spjd return (-1); 4019226676Spjd } 4020168676Spjd 4021168676Spjd if (changelist_haszonedchild(cl)) { 4022168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4023168676Spjd "child dataset with inherited mountpoint is used " 4024168676Spjd "in a non-global zone")); 4025168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 4026168676Spjd goto error; 4027168676Spjd } 4028168676Spjd 4029168676Spjd if ((ret = changelist_prefix(cl)) != 0) 4030168676Spjd goto error; 4031168404Spjd } 4032168404Spjd 4033168404Spjd if (ZFS_IS_VOLUME(zhp)) 4034168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 4035168404Spjd else 4036168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4037168404Spjd 4038168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4039168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 4040168404Spjd 4041226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 4042226705Spjd if (flags.nounmount) 4043226676Spjd zc.zc_cookie |= 2; 4044168676Spjd 4045185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 4046168676Spjd /* 4047168676Spjd * if it was recursive, the one that actually failed will 4048168676Spjd * be in zc.zc_name 4049168676Spjd */ 4050168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4051185029Spjd "cannot rename '%s'"), zc.zc_name); 4052168404Spjd 4053226705Spjd if (flags.recurse && errno == EEXIST) { 4054168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4055168676Spjd "a child dataset already has a snapshot " 4056168676Spjd "with the new name")); 4057185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4058168676Spjd } else { 4059168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 4060168676Spjd } 4061168676Spjd 4062168404Spjd /* 4063168404Spjd * On failure, we still want to remount any filesystems that 4064168404Spjd * were previously mounted, so we don't alter the system state. 4065168404Spjd */ 4066268469Sdelphij if (cl != NULL) 4067168676Spjd (void) changelist_postfix(cl); 4068168404Spjd } else { 4069268469Sdelphij if (cl != NULL) { 4070168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 4071168676Spjd ret = changelist_postfix(cl); 4072168676Spjd } 4073168404Spjd } 4074168404Spjd 4075168404Spjderror: 4076268469Sdelphij if (parentname != NULL) { 4077168676Spjd free(parentname); 4078168676Spjd } 4079268469Sdelphij if (zhrp != NULL) { 4080168676Spjd zfs_close(zhrp); 4081168676Spjd } 4082268469Sdelphij if (cl != NULL) { 4083168676Spjd changelist_free(cl); 4084168676Spjd } 4085168404Spjd return (ret); 4086168404Spjd} 4087168404Spjd 4088219089Spjdnvlist_t * 4089219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4090168404Spjd{ 4091219089Spjd return (zhp->zfs_user_props); 4092168676Spjd} 4093168676Spjd 4094168404Spjdnvlist_t * 4095219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4096168404Spjd{ 4097219089Spjd if (zhp->zfs_recvd_props == NULL) 4098219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4099219089Spjd return (NULL); 4100219089Spjd return (zhp->zfs_recvd_props); 4101168404Spjd} 4102168404Spjd 4103168404Spjd/* 4104168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4105168404Spjd * display, and their maximum widths. This does two main things: 4106168404Spjd * 4107168404Spjd * - If this is a list of all properties, then expand the list to include 4108168404Spjd * all native properties, and set a flag so that for each dataset we look 4109168404Spjd * for new unique user properties and add them to the list. 4110168404Spjd * 4111168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4112219089Spjd * so that we can size the column appropriately. If the user has 4113219089Spjd * requested received property values, we also need to compute the width 4114219089Spjd * of the RECEIVED column. 4115168404Spjd */ 4116168404Spjdint 4117259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4118259850Sdelphij boolean_t literal) 4119168404Spjd{ 4120168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4121185029Spjd zprop_list_t *entry; 4122185029Spjd zprop_list_t **last, **start; 4123168404Spjd nvlist_t *userprops, *propval; 4124168404Spjd nvpair_t *elem; 4125168404Spjd char *strval; 4126168404Spjd char buf[ZFS_MAXPROPLEN]; 4127168404Spjd 4128185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4129168404Spjd return (-1); 4130168404Spjd 4131168404Spjd userprops = zfs_get_user_props(zhp); 4132168404Spjd 4133168404Spjd entry = *plp; 4134168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4135168404Spjd /* 4136168404Spjd * Go through and add any user properties as necessary. We 4137168404Spjd * start by incrementing our list pointer to the first 4138168404Spjd * non-native property. 4139168404Spjd */ 4140168404Spjd start = plp; 4141168404Spjd while (*start != NULL) { 4142185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4143168404Spjd break; 4144168404Spjd start = &(*start)->pl_next; 4145168404Spjd } 4146168404Spjd 4147168404Spjd elem = NULL; 4148168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4149168404Spjd /* 4150168404Spjd * See if we've already found this property in our list. 4151168404Spjd */ 4152168404Spjd for (last = start; *last != NULL; 4153168404Spjd last = &(*last)->pl_next) { 4154168404Spjd if (strcmp((*last)->pl_user_prop, 4155168404Spjd nvpair_name(elem)) == 0) 4156168404Spjd break; 4157168404Spjd } 4158168404Spjd 4159168404Spjd if (*last == NULL) { 4160168404Spjd if ((entry = zfs_alloc(hdl, 4161185029Spjd sizeof (zprop_list_t))) == NULL || 4162168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4163168404Spjd nvpair_name(elem)))) == NULL) { 4164168404Spjd free(entry); 4165168404Spjd return (-1); 4166168404Spjd } 4167168404Spjd 4168185029Spjd entry->pl_prop = ZPROP_INVAL; 4169168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4170168404Spjd entry->pl_all = B_TRUE; 4171168404Spjd *last = entry; 4172168404Spjd } 4173168404Spjd } 4174168404Spjd } 4175168404Spjd 4176168404Spjd /* 4177168404Spjd * Now go through and check the width of any non-fixed columns 4178168404Spjd */ 4179168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4180259850Sdelphij if (entry->pl_fixed && !literal) 4181168404Spjd continue; 4182168404Spjd 4183185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4184168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4185259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4186168404Spjd if (strlen(buf) > entry->pl_width) 4187168404Spjd entry->pl_width = strlen(buf); 4188168404Spjd } 4189219089Spjd if (received && zfs_prop_get_recvd(zhp, 4190219089Spjd zfs_prop_to_name(entry->pl_prop), 4191259850Sdelphij buf, sizeof (buf), literal) == 0) 4192219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4193219089Spjd entry->pl_recvd_width = strlen(buf); 4194219089Spjd } else { 4195219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4196219089Spjd &propval) == 0) { 4197219089Spjd verify(nvlist_lookup_string(propval, 4198219089Spjd ZPROP_VALUE, &strval) == 0); 4199219089Spjd if (strlen(strval) > entry->pl_width) 4200219089Spjd entry->pl_width = strlen(strval); 4201219089Spjd } 4202219089Spjd if (received && zfs_prop_get_recvd(zhp, 4203219089Spjd entry->pl_user_prop, 4204259850Sdelphij buf, sizeof (buf), literal) == 0) 4205219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4206219089Spjd entry->pl_recvd_width = strlen(buf); 4207168404Spjd } 4208168404Spjd } 4209168404Spjd 4210168404Spjd return (0); 4211168404Spjd} 4212168404Spjd 4213185029Spjdint 4214185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4215209962Smm char *resource, void *export, void *sharetab, 4216209962Smm int sharemax, zfs_share_op_t operation) 4217185029Spjd{ 4218185029Spjd zfs_cmd_t zc = { 0 }; 4219185029Spjd int error; 4220185029Spjd 4221185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4222185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4223209962Smm if (resource) 4224209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4225185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4226185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4227185029Spjd zc.zc_share.z_sharetype = operation; 4228185029Spjd zc.zc_share.z_sharemax = sharemax; 4229185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4230185029Spjd return (error); 4231185029Spjd} 4232185029Spjd 4233205198Sdelphijvoid 4234205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4235205198Sdelphij{ 4236205198Sdelphij nvpair_t *curr; 4237205198Sdelphij 4238205198Sdelphij /* 4239205198Sdelphij * Keep a reference to the props-table against which we prune the 4240205198Sdelphij * properties. 4241205198Sdelphij */ 4242205198Sdelphij zhp->zfs_props_table = props; 4243205198Sdelphij 4244205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4245205198Sdelphij 4246205198Sdelphij while (curr) { 4247205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4248205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4249205198Sdelphij 4250206199Sdelphij /* 4251219089Spjd * User properties will result in ZPROP_INVAL, and since we 4252219089Spjd * only know how to prune standard ZFS properties, we always 4253219089Spjd * leave these in the list. This can also happen if we 4254219089Spjd * encounter an unknown DSL property (when running older 4255219089Spjd * software, for example). 4256206199Sdelphij */ 4257206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4258205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4259205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4260205198Sdelphij curr = next; 4261205198Sdelphij } 4262205198Sdelphij} 4263205198Sdelphij 4264277300Ssmh#ifdef illumos 4265209962Smmstatic int 4266209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4267209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4268209962Smm{ 4269209962Smm zfs_cmd_t zc = { 0 }; 4270209962Smm nvlist_t *nvlist = NULL; 4271209962Smm int error; 4272209962Smm 4273209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4274209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4275209962Smm zc.zc_cookie = (uint64_t)cmd; 4276209962Smm 4277209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4278209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4279209962Smm (void) no_memory(hdl); 4280289497Smav return (0); 4281209962Smm } 4282209962Smm } 4283209962Smm 4284209962Smm switch (cmd) { 4285209962Smm case ZFS_SMB_ACL_ADD: 4286209962Smm case ZFS_SMB_ACL_REMOVE: 4287209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4288209962Smm break; 4289209962Smm case ZFS_SMB_ACL_RENAME: 4290209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4291209962Smm resource1) != 0) { 4292209962Smm (void) no_memory(hdl); 4293209962Smm return (-1); 4294209962Smm } 4295209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4296209962Smm resource2) != 0) { 4297209962Smm (void) no_memory(hdl); 4298209962Smm return (-1); 4299209962Smm } 4300209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4301209962Smm nvlist_free(nvlist); 4302209962Smm return (-1); 4303209962Smm } 4304209962Smm break; 4305209962Smm case ZFS_SMB_ACL_PURGE: 4306209962Smm break; 4307209962Smm default: 4308209962Smm return (-1); 4309209962Smm } 4310209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4311209962Smm if (nvlist) 4312209962Smm nvlist_free(nvlist); 4313209962Smm return (error); 4314209962Smm} 4315209962Smm 4316209962Smmint 4317209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4318209962Smm char *path, char *resource) 4319209962Smm{ 4320209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4321209962Smm resource, NULL)); 4322209962Smm} 4323209962Smm 4324209962Smmint 4325209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4326209962Smm char *path, char *resource) 4327209962Smm{ 4328209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4329209962Smm resource, NULL)); 4330209962Smm} 4331209962Smm 4332209962Smmint 4333209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4334209962Smm{ 4335209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4336209962Smm NULL, NULL)); 4337209962Smm} 4338209962Smm 4339209962Smmint 4340209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4341209962Smm char *oldname, char *newname) 4342209962Smm{ 4343209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4344209962Smm oldname, newname)); 4345209962Smm} 4346277300Ssmh#endif /* illumos */ 4347209962Smm 4348209962Smmint 4349209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4350209962Smm zfs_userspace_cb_t func, void *arg) 4351209962Smm{ 4352209962Smm zfs_cmd_t zc = { 0 }; 4353209962Smm zfs_useracct_t buf[100]; 4354240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4355240415Smm int ret; 4356209962Smm 4357228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4358209962Smm 4359209962Smm zc.zc_objset_type = type; 4360209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4361209962Smm 4362240415Smm for (;;) { 4363209962Smm zfs_useracct_t *zua = buf; 4364209962Smm 4365209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4366240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4367248571Smm char errbuf[1024]; 4368240415Smm 4369240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4370240415Smm dgettext(TEXT_DOMAIN, 4371240415Smm "cannot get used/quota for %s"), zc.zc_name); 4372240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4373240415Smm } 4374240415Smm if (zc.zc_nvlist_dst_size == 0) 4375209962Smm break; 4376209962Smm 4377209962Smm while (zc.zc_nvlist_dst_size > 0) { 4378240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4379240415Smm zua->zu_space)) != 0) 4380240415Smm return (ret); 4381209962Smm zua++; 4382209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4383209962Smm } 4384209962Smm } 4385209962Smm 4386240415Smm return (0); 4387209962Smm} 4388209962Smm 4389248571Smmstruct holdarg { 4390248571Smm nvlist_t *nvl; 4391248571Smm const char *snapname; 4392248571Smm const char *tag; 4393248571Smm boolean_t recursive; 4394252219Sdelphij int error; 4395248571Smm}; 4396248571Smm 4397248571Smmstatic int 4398248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4399248571Smm{ 4400248571Smm struct holdarg *ha = arg; 4401248571Smm char name[ZFS_MAXNAMELEN]; 4402248571Smm int rv = 0; 4403248571Smm 4404248571Smm (void) snprintf(name, sizeof (name), 4405248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4406248571Smm 4407251646Sdelphij if (lzc_exists(name)) 4408248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4409248571Smm 4410248571Smm if (ha->recursive) 4411248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4412248571Smm zfs_close(zhp); 4413248571Smm return (rv); 4414248571Smm} 4415248571Smm 4416219089Spjdint 4417219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4418251646Sdelphij boolean_t recursive, int cleanup_fd) 4419219089Spjd{ 4420248571Smm int ret; 4421248571Smm struct holdarg ha; 4422219089Spjd 4423248571Smm ha.nvl = fnvlist_alloc(); 4424248571Smm ha.snapname = snapname; 4425248571Smm ha.tag = tag; 4426248571Smm ha.recursive = recursive; 4427248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4428249357Smm 4429251646Sdelphij if (nvlist_empty(ha.nvl)) { 4430251646Sdelphij char errbuf[1024]; 4431251646Sdelphij 4432249357Smm fnvlist_free(ha.nvl); 4433249357Smm ret = ENOENT; 4434251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4435251646Sdelphij dgettext(TEXT_DOMAIN, 4436251646Sdelphij "cannot hold snapshot '%s@%s'"), 4437251646Sdelphij zhp->zfs_name, snapname); 4438251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4439249357Smm return (ret); 4440249357Smm } 4441249357Smm 4442251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4443248571Smm fnvlist_free(ha.nvl); 4444219089Spjd 4445251646Sdelphij return (ret); 4446251646Sdelphij} 4447251646Sdelphij 4448251646Sdelphijint 4449251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4450251646Sdelphij{ 4451251646Sdelphij int ret; 4452251646Sdelphij nvlist_t *errors; 4453251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4454251646Sdelphij char errbuf[1024]; 4455251646Sdelphij nvpair_t *elem; 4456251646Sdelphij 4457251646Sdelphij errors = NULL; 4458251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4459251646Sdelphij 4460251646Sdelphij if (ret == 0) { 4461251646Sdelphij /* There may be errors even in the success case. */ 4462251646Sdelphij fnvlist_free(errors); 4463248571Smm return (0); 4464251646Sdelphij } 4465219089Spjd 4466251646Sdelphij if (nvlist_empty(errors)) { 4467248571Smm /* no hold-specific errors */ 4468248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4469248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4470248571Smm switch (ret) { 4471248571Smm case ENOTSUP: 4472248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4473248571Smm "pool must be upgraded")); 4474248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4475248571Smm break; 4476248571Smm case EINVAL: 4477248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4478248571Smm break; 4479248571Smm default: 4480248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4481248571Smm } 4482248571Smm } 4483219089Spjd 4484248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4485248571Smm elem != NULL; 4486248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4487248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4488248571Smm dgettext(TEXT_DOMAIN, 4489248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4490248571Smm switch (fnvpair_value_int32(elem)) { 4491219089Spjd case E2BIG: 4492219089Spjd /* 4493219089Spjd * Temporary tags wind up having the ds object id 4494219089Spjd * prepended. So even if we passed the length check 4495219089Spjd * above, it's still possible for the tag to wind 4496219089Spjd * up being slightly too long. 4497219089Spjd */ 4498248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4499248571Smm break; 4500219089Spjd case EINVAL: 4501248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4502248571Smm break; 4503219089Spjd case EEXIST: 4504248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4505248571Smm break; 4506219089Spjd default: 4507248571Smm (void) zfs_standard_error(hdl, 4508248571Smm fnvpair_value_int32(elem), errbuf); 4509219089Spjd } 4510219089Spjd } 4511219089Spjd 4512248571Smm fnvlist_free(errors); 4513248571Smm return (ret); 4514219089Spjd} 4515219089Spjd 4516248571Smmstatic int 4517248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4518248571Smm{ 4519248571Smm struct holdarg *ha = arg; 4520248571Smm char name[ZFS_MAXNAMELEN]; 4521248571Smm int rv = 0; 4522252219Sdelphij nvlist_t *existing_holds; 4523248571Smm 4524248571Smm (void) snprintf(name, sizeof (name), 4525248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4526248571Smm 4527252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4528252219Sdelphij ha->error = ENOENT; 4529252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4530252219Sdelphij ha->error = ESRCH; 4531252219Sdelphij } else { 4532252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4533252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4534252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4535252219Sdelphij fnvlist_free(torelease); 4536248571Smm } 4537248571Smm 4538248571Smm if (ha->recursive) 4539248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4540248571Smm zfs_close(zhp); 4541248571Smm return (rv); 4542248571Smm} 4543248571Smm 4544219089Spjdint 4545219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4546219089Spjd boolean_t recursive) 4547219089Spjd{ 4548248571Smm int ret; 4549248571Smm struct holdarg ha; 4550251646Sdelphij nvlist_t *errors = NULL; 4551248571Smm nvpair_t *elem; 4552219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4553249357Smm char errbuf[1024]; 4554219089Spjd 4555248571Smm ha.nvl = fnvlist_alloc(); 4556248571Smm ha.snapname = snapname; 4557248571Smm ha.tag = tag; 4558248571Smm ha.recursive = recursive; 4559252219Sdelphij ha.error = 0; 4560248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4561249357Smm 4562251646Sdelphij if (nvlist_empty(ha.nvl)) { 4563249357Smm fnvlist_free(ha.nvl); 4564252219Sdelphij ret = ha.error; 4565249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4566249357Smm dgettext(TEXT_DOMAIN, 4567249357Smm "cannot release hold from snapshot '%s@%s'"), 4568249357Smm zhp->zfs_name, snapname); 4569252219Sdelphij if (ret == ESRCH) { 4570252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4571252219Sdelphij } else { 4572252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4573252219Sdelphij } 4574249357Smm return (ret); 4575249357Smm } 4576249357Smm 4577248571Smm ret = lzc_release(ha.nvl, &errors); 4578248571Smm fnvlist_free(ha.nvl); 4579219089Spjd 4580251646Sdelphij if (ret == 0) { 4581251646Sdelphij /* There may be errors even in the success case. */ 4582251646Sdelphij fnvlist_free(errors); 4583248571Smm return (0); 4584251646Sdelphij } 4585219089Spjd 4586251646Sdelphij if (nvlist_empty(errors)) { 4587248571Smm /* no hold-specific errors */ 4588219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4589248571Smm "cannot release")); 4590219089Spjd switch (errno) { 4591219089Spjd case ENOTSUP: 4592219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4593219089Spjd "pool must be upgraded")); 4594248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4595248571Smm break; 4596248571Smm default: 4597248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4598248571Smm } 4599248571Smm } 4600248571Smm 4601248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4602248571Smm elem != NULL; 4603248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4604248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4605248571Smm dgettext(TEXT_DOMAIN, 4606248571Smm "cannot release hold from snapshot '%s'"), 4607248571Smm nvpair_name(elem)); 4608248571Smm switch (fnvpair_value_int32(elem)) { 4609248571Smm case ESRCH: 4610248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4611248571Smm break; 4612219089Spjd case EINVAL: 4613248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4614248571Smm break; 4615219089Spjd default: 4616248571Smm (void) zfs_standard_error_fmt(hdl, 4617248571Smm fnvpair_value_int32(elem), errbuf); 4618219089Spjd } 4619219089Spjd } 4620219089Spjd 4621248571Smm fnvlist_free(errors); 4622248571Smm return (ret); 4623219089Spjd} 4624219089Spjd 4625219089Spjdint 4626219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4627219089Spjd{ 4628219089Spjd zfs_cmd_t zc = { 0 }; 4629219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4630219089Spjd int nvsz = 2048; 4631219089Spjd void *nvbuf; 4632219089Spjd int err = 0; 4633248571Smm char errbuf[1024]; 4634219089Spjd 4635219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4636219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4637219089Spjd 4638219089Spjdtryagain: 4639219089Spjd 4640219089Spjd nvbuf = malloc(nvsz); 4641219089Spjd if (nvbuf == NULL) { 4642219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4643219089Spjd goto out; 4644219089Spjd } 4645219089Spjd 4646219089Spjd zc.zc_nvlist_dst_size = nvsz; 4647219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4648219089Spjd 4649219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4650219089Spjd 4651230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4652219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4653219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4654219089Spjd zc.zc_name); 4655219089Spjd switch (errno) { 4656219089Spjd case ENOMEM: 4657219089Spjd free(nvbuf); 4658219089Spjd nvsz = zc.zc_nvlist_dst_size; 4659219089Spjd goto tryagain; 4660219089Spjd 4661219089Spjd case ENOTSUP: 4662219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4663219089Spjd "pool must be upgraded")); 4664219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4665219089Spjd break; 4666219089Spjd case EINVAL: 4667219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4668219089Spjd break; 4669219089Spjd case ENOENT: 4670219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4671219089Spjd break; 4672219089Spjd default: 4673219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4674219089Spjd break; 4675219089Spjd } 4676219089Spjd } else { 4677219089Spjd /* success */ 4678219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4679219089Spjd if (rc) { 4680219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4681219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4682219089Spjd zc.zc_name); 4683219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4684219089Spjd } 4685219089Spjd } 4686219089Spjd 4687219089Spjd free(nvbuf); 4688219089Spjdout: 4689219089Spjd return (err); 4690219089Spjd} 4691219089Spjd 4692219089Spjdint 4693219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4694219089Spjd{ 4695219089Spjd zfs_cmd_t zc = { 0 }; 4696219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4697219089Spjd char *nvbuf; 4698248571Smm char errbuf[1024]; 4699219089Spjd size_t nvsz; 4700219089Spjd int err; 4701219089Spjd 4702219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4703219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4704219089Spjd 4705219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4706219089Spjd assert(err == 0); 4707219089Spjd 4708219089Spjd nvbuf = malloc(nvsz); 4709219089Spjd 4710219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4711219089Spjd assert(err == 0); 4712219089Spjd 4713219089Spjd zc.zc_nvlist_src_size = nvsz; 4714219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4715219089Spjd zc.zc_perm_action = un; 4716219089Spjd 4717219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4718219089Spjd 4719219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4720219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4721219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4722219089Spjd zc.zc_name); 4723219089Spjd switch (errno) { 4724219089Spjd case ENOTSUP: 4725219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4726219089Spjd "pool must be upgraded")); 4727219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4728219089Spjd break; 4729219089Spjd case EINVAL: 4730219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4731219089Spjd break; 4732219089Spjd case ENOENT: 4733219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4734219089Spjd break; 4735219089Spjd default: 4736219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4737219089Spjd break; 4738219089Spjd } 4739219089Spjd } 4740219089Spjd 4741219089Spjd free(nvbuf); 4742219089Spjd 4743219089Spjd return (err); 4744219089Spjd} 4745219089Spjd 4746219089Spjdint 4747219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4748219089Spjd{ 4749248571Smm int err; 4750248571Smm char errbuf[1024]; 4751219089Spjd 4752248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4753219089Spjd 4754248571Smm if (err != 0) { 4755248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4756219089Spjd 4757219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4758219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4759248571Smm zhp->zfs_name); 4760248571Smm switch (err) { 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 return (err); 4779219089Spjd} 4780219089Spjd 4781251629Sdelphij/* 4782251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4783251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4784251629Sdelphij * suite's shell version in reservation.kshlib. 4785251629Sdelphij */ 4786219089Spjduint64_t 4787219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4788219089Spjd{ 4789219089Spjd uint64_t numdb; 4790219089Spjd uint64_t nblocks, volblocksize; 4791219089Spjd int ncopies; 4792219089Spjd char *strval; 4793219089Spjd 4794219089Spjd if (nvlist_lookup_string(props, 4795219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4796219089Spjd ncopies = atoi(strval); 4797219089Spjd else 4798219089Spjd ncopies = 1; 4799219089Spjd if (nvlist_lookup_uint64(props, 4800219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4801219089Spjd &volblocksize) != 0) 4802219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4803219089Spjd nblocks = volsize/volblocksize; 4804219089Spjd /* start with metadnode L0-L6 */ 4805219089Spjd numdb = 7; 4806219089Spjd /* calculate number of indirects */ 4807219089Spjd while (nblocks > 1) { 4808219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4809219089Spjd nblocks /= DNODES_PER_LEVEL; 4810219089Spjd numdb += nblocks; 4811219089Spjd } 4812219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4813219089Spjd volsize *= ncopies; 4814219089Spjd /* 4815219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4816219089Spjd * compressed, but in practice they compress down to about 4817219089Spjd * 1100 bytes 4818219089Spjd */ 4819219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4820219089Spjd volsize += numdb; 4821219089Spjd return (volsize); 4822219089Spjd} 4823219089Spjd 4824168404Spjd/* 4825168404Spjd * Attach/detach the given filesystem to/from the given jail. 4826168404Spjd */ 4827168404Spjdint 4828168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4829168404Spjd{ 4830168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4831168404Spjd zfs_cmd_t zc = { 0 }; 4832168404Spjd char errbuf[1024]; 4833224525Smm unsigned long cmd; 4834224525Smm int ret; 4835168404Spjd 4836168404Spjd if (attach) { 4837168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4838168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4839168404Spjd } else { 4840168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4841249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4842168404Spjd } 4843168404Spjd 4844168404Spjd switch (zhp->zfs_type) { 4845168404Spjd case ZFS_TYPE_VOLUME: 4846168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4847168404Spjd "volumes can not be jailed")); 4848168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4849168404Spjd case ZFS_TYPE_SNAPSHOT: 4850168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4851168404Spjd "snapshots can not be jailed")); 4852168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4853168404Spjd } 4854168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4855168404Spjd 4856168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4857168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4858168404Spjd zc.zc_jailid = jailid; 4859168404Spjd 4860168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4861168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4862168404Spjd zfs_standard_error(hdl, errno, errbuf); 4863168404Spjd 4864168404Spjd return (ret); 4865168404Spjd} 4866