libzfs_dataset.c revision 277300
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); 1496219089Spjd } else { 1497219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1498219089Spjd } 1499219089Spjd break; 1500219089Spjd 1501219089Spjd case EINVAL: 1502219089Spjd if (prop == ZPROP_INVAL) { 1503219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1504219089Spjd } else { 1505219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1506219089Spjd } 1507219089Spjd break; 1508219089Spjd 1509219089Spjd case EOVERFLOW: 1510219089Spjd /* 1511219089Spjd * This platform can't address a volume this big. 1512219089Spjd */ 1513219089Spjd#ifdef _ILP32 1514219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1515219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1516219089Spjd break; 1517219089Spjd } 1518219089Spjd#endif 1519219089Spjd /* FALLTHROUGH */ 1520219089Spjd default: 1521219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1522168404Spjd } 1523168404Spjd} 1524168404Spjd 1525168404Spjd/* 1526168404Spjd * Given a property name and value, set the property for the given dataset. 1527168404Spjd */ 1528168404Spjdint 1529168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1530168404Spjd{ 1531168404Spjd zfs_cmd_t zc = { 0 }; 1532168404Spjd int ret = -1; 1533168404Spjd prop_changelist_t *cl = NULL; 1534168404Spjd char errbuf[1024]; 1535168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1536168404Spjd nvlist_t *nvl = NULL, *realprops; 1537168404Spjd zfs_prop_t prop; 1538241655Smm boolean_t do_prefix = B_TRUE; 1539219089Spjd int added_resv; 1540168404Spjd 1541168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1542168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1543168404Spjd zhp->zfs_name); 1544168404Spjd 1545168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1546168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1547168404Spjd (void) no_memory(hdl); 1548168404Spjd goto error; 1549168404Spjd } 1550168404Spjd 1551185029Spjd if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, 1552168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) 1553168404Spjd goto error; 1554185029Spjd 1555168404Spjd nvlist_free(nvl); 1556168404Spjd nvl = realprops; 1557168404Spjd 1558168404Spjd prop = zfs_name_to_prop(propname); 1559168404Spjd 1560168404Spjd /* We don't support those properties on FreeBSD. */ 1561168404Spjd switch (prop) { 1562197867Strasz case ZFS_PROP_DEVICES: 1563168404Spjd case ZFS_PROP_ISCSIOPTIONS: 1564197867Strasz case ZFS_PROP_XATTR: 1565197867Strasz case ZFS_PROP_VSCAN: 1566197867Strasz case ZFS_PROP_NBMAND: 1567219089Spjd case ZFS_PROP_MLSLABEL: 1568168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1569168404Spjd "property '%s' not supported on FreeBSD", propname); 1570168404Spjd ret = zfs_error(hdl, EZFS_PERM, errbuf); 1571168404Spjd goto error; 1572168404Spjd } 1573168404Spjd 1574219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1575219089Spjd if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) 1576219089Spjd goto error; 1577219089Spjd } 1578219089Spjd 1579185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1580168404Spjd goto error; 1581168404Spjd 1582168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1583168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1584168404Spjd "child dataset with inherited mountpoint is used " 1585168404Spjd "in a non-global zone")); 1586168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1587168404Spjd goto error; 1588168404Spjd } 1589168404Spjd 1590185029Spjd /* 1591238391Smm * We don't want to unmount & remount the dataset when changing 1592238391Smm * its canmount property to 'on' or 'noauto'. We only use 1593238391Smm * the changelist logic to unmount when setting canmount=off. 1594185029Spjd */ 1595238391Smm if (prop == ZFS_PROP_CANMOUNT) { 1596238391Smm uint64_t idx; 1597238391Smm int err = zprop_string_to_index(prop, propval, &idx, 1598238391Smm ZFS_TYPE_DATASET); 1599238391Smm if (err == 0 && idx != ZFS_CANMOUNT_OFF) 1600238391Smm do_prefix = B_FALSE; 1601238391Smm } 1602185029Spjd 1603185029Spjd if (do_prefix && (ret = changelist_prefix(cl)) != 0) 1604168404Spjd goto error; 1605168404Spjd 1606168404Spjd /* 1607168404Spjd * Execute the corresponding ioctl() to set this property. 1608168404Spjd */ 1609168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1610168404Spjd 1611185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1612168404Spjd goto error; 1613168404Spjd 1614185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1615209962Smm 1616168404Spjd if (ret != 0) { 1617219089Spjd zfs_setprop_error(hdl, prop, errno, errbuf); 1618219089Spjd if (added_resv && errno == ENOSPC) { 1619219089Spjd /* clean up the volsize property we tried to set */ 1620219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1621219089Spjd ZFS_PROP_VOLSIZE); 1622219089Spjd nvlist_free(nvl); 1623219089Spjd zcmd_free_nvlists(&zc); 1624219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1625219089Spjd goto error; 1626219089Spjd if (nvlist_add_uint64(nvl, 1627219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1628219089Spjd old_volsize) != 0) 1629219089Spjd goto error; 1630219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1631219089Spjd goto error; 1632219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1633168404Spjd } 1634168404Spjd } else { 1635185029Spjd if (do_prefix) 1636185029Spjd ret = changelist_postfix(cl); 1637185029Spjd 1638168404Spjd /* 1639168404Spjd * Refresh the statistics so the new property value 1640168404Spjd * is reflected. 1641168404Spjd */ 1642185029Spjd if (ret == 0) 1643168404Spjd (void) get_stats(zhp); 1644168404Spjd } 1645168404Spjd 1646168404Spjderror: 1647168404Spjd nvlist_free(nvl); 1648168404Spjd zcmd_free_nvlists(&zc); 1649168404Spjd if (cl) 1650168404Spjd changelist_free(cl); 1651168404Spjd return (ret); 1652168404Spjd} 1653168404Spjd 1654168404Spjd/* 1655219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1656219089Spjd * is TRUE, revert to the received value, if any. 1657168404Spjd */ 1658168404Spjdint 1659219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1660168404Spjd{ 1661168404Spjd zfs_cmd_t zc = { 0 }; 1662168404Spjd int ret; 1663168404Spjd prop_changelist_t *cl; 1664168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1665168404Spjd char errbuf[1024]; 1666168404Spjd zfs_prop_t prop; 1667168404Spjd 1668168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1669168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1670168404Spjd 1671219089Spjd zc.zc_cookie = received; 1672185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1673168404Spjd /* 1674168404Spjd * For user properties, the amount of work we have to do is very 1675168404Spjd * small, so just do it here. 1676168404Spjd */ 1677168404Spjd if (!zfs_prop_user(propname)) { 1678168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1679168404Spjd "invalid property")); 1680168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1681168404Spjd } 1682168404Spjd 1683168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1684168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1685168404Spjd 1686185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1687168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1688168404Spjd 1689168404Spjd return (0); 1690168404Spjd } 1691168404Spjd 1692168404Spjd /* 1693168404Spjd * Verify that this property is inheritable. 1694168404Spjd */ 1695168404Spjd if (zfs_prop_readonly(prop)) 1696168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1697168404Spjd 1698219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1699168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1700168404Spjd 1701168404Spjd /* 1702168404Spjd * Check to see if the value applies to this type 1703168404Spjd */ 1704168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1705168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1706168404Spjd 1707168404Spjd /* 1708219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1709168404Spjd */ 1710168404Spjd propname = zfs_prop_to_name(prop); 1711168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1712168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1713168404Spjd 1714168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1715168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1716168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1717168404Spjd "dataset is used in a non-global zone")); 1718168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1719168404Spjd } 1720168404Spjd 1721168404Spjd /* 1722168404Spjd * Determine datasets which will be affected by this change, if any. 1723168404Spjd */ 1724185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1725168404Spjd return (-1); 1726168404Spjd 1727168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1728168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1729168404Spjd "child dataset with inherited mountpoint is used " 1730168404Spjd "in a non-global zone")); 1731168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1732168404Spjd goto error; 1733168404Spjd } 1734168404Spjd 1735168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1736168404Spjd goto error; 1737168404Spjd 1738185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1739168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1740168404Spjd } else { 1741168404Spjd 1742168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1743168404Spjd goto error; 1744168404Spjd 1745168404Spjd /* 1746168404Spjd * Refresh the statistics so the new property is reflected. 1747168404Spjd */ 1748168404Spjd (void) get_stats(zhp); 1749168404Spjd } 1750168404Spjd 1751168404Spjderror: 1752168404Spjd changelist_free(cl); 1753168404Spjd return (ret); 1754168404Spjd} 1755168404Spjd 1756168404Spjd/* 1757168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1758168404Spjd * extract them appropriately. 1759168404Spjd */ 1760168404Spjdstatic uint64_t 1761168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1762168404Spjd{ 1763168404Spjd nvlist_t *nv; 1764168404Spjd uint64_t value; 1765168404Spjd 1766168404Spjd *source = NULL; 1767168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1768168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1769185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1770185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1771168404Spjd } else { 1772205198Sdelphij verify(!zhp->zfs_props_table || 1773205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1774168404Spjd value = zfs_prop_default_numeric(prop); 1775168404Spjd *source = ""; 1776168404Spjd } 1777168404Spjd 1778168404Spjd return (value); 1779168404Spjd} 1780168404Spjd 1781168404Spjdstatic char * 1782168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1783168404Spjd{ 1784168404Spjd nvlist_t *nv; 1785168404Spjd char *value; 1786168404Spjd 1787168404Spjd *source = NULL; 1788168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1789168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1790185029Spjd verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); 1791185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1792168404Spjd } else { 1793205198Sdelphij verify(!zhp->zfs_props_table || 1794205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1795168404Spjd if ((value = (char *)zfs_prop_default_string(prop)) == NULL) 1796168404Spjd value = ""; 1797168404Spjd *source = ""; 1798168404Spjd } 1799168404Spjd 1800168404Spjd return (value); 1801168404Spjd} 1802168404Spjd 1803219089Spjdstatic boolean_t 1804219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1805219089Spjd{ 1806219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1807219089Spjd} 1808219089Spjd 1809219089Spjdstatic void 1810219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1811219089Spjd{ 1812219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1813219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1814219089Spjd} 1815219089Spjd 1816219089Spjdstatic void 1817219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1818219089Spjd{ 1819219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1820219089Spjd *cookie = 0; 1821219089Spjd} 1822219089Spjd 1823168404Spjd/* 1824168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1825168404Spjd * zfs_prop_get_int() are built using this interface. 1826168404Spjd * 1827168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1828168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1829168404Spjd * If they differ from the on-disk values, report the current values and mark 1830168404Spjd * the source "temporary". 1831168404Spjd */ 1832168404Spjdstatic int 1833185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1834168404Spjd char **source, uint64_t *val) 1835168404Spjd{ 1836185029Spjd zfs_cmd_t zc = { 0 }; 1837185029Spjd nvlist_t *zplprops = NULL; 1838168404Spjd struct mnttab mnt; 1839168404Spjd char *mntopt_on = NULL; 1840168404Spjd char *mntopt_off = NULL; 1841219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1842168404Spjd 1843168404Spjd *source = NULL; 1844168404Spjd 1845168404Spjd switch (prop) { 1846168404Spjd case ZFS_PROP_ATIME: 1847168404Spjd mntopt_on = MNTOPT_ATIME; 1848168404Spjd mntopt_off = MNTOPT_NOATIME; 1849168404Spjd break; 1850168404Spjd 1851168404Spjd case ZFS_PROP_DEVICES: 1852168404Spjd mntopt_on = MNTOPT_DEVICES; 1853168404Spjd mntopt_off = MNTOPT_NODEVICES; 1854168404Spjd break; 1855168404Spjd 1856168404Spjd case ZFS_PROP_EXEC: 1857168404Spjd mntopt_on = MNTOPT_EXEC; 1858168404Spjd mntopt_off = MNTOPT_NOEXEC; 1859168404Spjd break; 1860168404Spjd 1861168404Spjd case ZFS_PROP_READONLY: 1862168404Spjd mntopt_on = MNTOPT_RO; 1863168404Spjd mntopt_off = MNTOPT_RW; 1864168404Spjd break; 1865168404Spjd 1866168404Spjd case ZFS_PROP_SETUID: 1867168404Spjd mntopt_on = MNTOPT_SETUID; 1868168404Spjd mntopt_off = MNTOPT_NOSETUID; 1869168404Spjd break; 1870168404Spjd 1871168404Spjd case ZFS_PROP_XATTR: 1872168404Spjd mntopt_on = MNTOPT_XATTR; 1873168404Spjd mntopt_off = MNTOPT_NOXATTR; 1874168404Spjd break; 1875185029Spjd 1876185029Spjd case ZFS_PROP_NBMAND: 1877185029Spjd mntopt_on = MNTOPT_NBMAND; 1878185029Spjd mntopt_off = MNTOPT_NONBMAND; 1879185029Spjd break; 1880168404Spjd } 1881168404Spjd 1882168404Spjd /* 1883168404Spjd * Because looking up the mount options is potentially expensive 1884168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1885168404Spjd * we're looking up a property which requires its presence. 1886168404Spjd */ 1887168404Spjd if (!zhp->zfs_mntcheck && 1888168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1889209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1890209962Smm struct mnttab entry; 1891168404Spjd 1892209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1893209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1894168404Spjd entry.mnt_mntopts); 1895168404Spjd if (zhp->zfs_mntopts == NULL) 1896168404Spjd return (-1); 1897168404Spjd } 1898168404Spjd 1899168404Spjd zhp->zfs_mntcheck = B_TRUE; 1900168404Spjd } 1901168404Spjd 1902168404Spjd if (zhp->zfs_mntopts == NULL) 1903168404Spjd mnt.mnt_mntopts = ""; 1904168404Spjd else 1905168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1906168404Spjd 1907168404Spjd switch (prop) { 1908168404Spjd case ZFS_PROP_ATIME: 1909168404Spjd case ZFS_PROP_DEVICES: 1910168404Spjd case ZFS_PROP_EXEC: 1911168404Spjd case ZFS_PROP_READONLY: 1912168404Spjd case ZFS_PROP_SETUID: 1913168404Spjd case ZFS_PROP_XATTR: 1914185029Spjd case ZFS_PROP_NBMAND: 1915168404Spjd *val = getprop_uint64(zhp, prop, source); 1916168404Spjd 1917219089Spjd if (received) 1918219089Spjd break; 1919219089Spjd 1920168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 1921168404Spjd *val = B_TRUE; 1922168404Spjd if (src) 1923185029Spjd *src = ZPROP_SRC_TEMPORARY; 1924168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 1925168404Spjd *val = B_FALSE; 1926168404Spjd if (src) 1927185029Spjd *src = ZPROP_SRC_TEMPORARY; 1928168404Spjd } 1929168404Spjd break; 1930168404Spjd 1931168404Spjd case ZFS_PROP_CANMOUNT: 1932219089Spjd case ZFS_PROP_VOLSIZE: 1933168404Spjd case ZFS_PROP_QUOTA: 1934185029Spjd case ZFS_PROP_REFQUOTA: 1935168404Spjd case ZFS_PROP_RESERVATION: 1936185029Spjd case ZFS_PROP_REFRESERVATION: 1937264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 1938264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 1939264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 1940264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 1941168404Spjd *val = getprop_uint64(zhp, prop, source); 1942219089Spjd 1943219089Spjd if (*source == NULL) { 1944219089Spjd /* not default, must be local */ 1945168404Spjd *source = zhp->zfs_name; 1946219089Spjd } 1947168404Spjd break; 1948168404Spjd 1949168404Spjd case ZFS_PROP_MOUNTED: 1950168404Spjd *val = (zhp->zfs_mntopts != NULL); 1951168404Spjd break; 1952168404Spjd 1953168404Spjd case ZFS_PROP_NUMCLONES: 1954168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 1955168404Spjd break; 1956168404Spjd 1957185029Spjd case ZFS_PROP_VERSION: 1958185029Spjd case ZFS_PROP_NORMALIZE: 1959185029Spjd case ZFS_PROP_UTF8ONLY: 1960185029Spjd case ZFS_PROP_CASE: 1961185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 1962185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 1963185029Spjd return (-1); 1964185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1965185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 1966185029Spjd zcmd_free_nvlists(&zc); 1967219089Spjd return (-1); 1968185029Spjd } 1969185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 1970185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 1971185029Spjd val) != 0) { 1972185029Spjd zcmd_free_nvlists(&zc); 1973219089Spjd return (-1); 1974185029Spjd } 1975185029Spjd if (zplprops) 1976185029Spjd nvlist_free(zplprops); 1977185029Spjd zcmd_free_nvlists(&zc); 1978185029Spjd break; 1979185029Spjd 1980253819Sdelphij case ZFS_PROP_INCONSISTENT: 1981253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 1982253819Sdelphij break; 1983253819Sdelphij 1984168404Spjd default: 1985185029Spjd switch (zfs_prop_get_type(prop)) { 1986185029Spjd case PROP_TYPE_NUMBER: 1987185029Spjd case PROP_TYPE_INDEX: 1988185029Spjd *val = getprop_uint64(zhp, prop, source); 1989185029Spjd /* 1990209962Smm * If we tried to use a default value for a 1991185029Spjd * readonly property, it means that it was not 1992219089Spjd * present. 1993185029Spjd */ 1994185029Spjd if (zfs_prop_readonly(prop) && 1995219089Spjd *source != NULL && (*source)[0] == '\0') { 1996219089Spjd *source = NULL; 1997185029Spjd } 1998185029Spjd break; 1999185029Spjd 2000185029Spjd case PROP_TYPE_STRING: 2001185029Spjd default: 2002185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2003185029Spjd "cannot get non-numeric property")); 2004185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2005185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2006185029Spjd } 2007168404Spjd } 2008168404Spjd 2009168404Spjd return (0); 2010168404Spjd} 2011168404Spjd 2012168404Spjd/* 2013168404Spjd * Calculate the source type, given the raw source string. 2014168404Spjd */ 2015168404Spjdstatic void 2016185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2017168404Spjd char *statbuf, size_t statlen) 2018168404Spjd{ 2019185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2020168404Spjd return; 2021168404Spjd 2022168404Spjd if (source == NULL) { 2023185029Spjd *srctype = ZPROP_SRC_NONE; 2024168404Spjd } else if (source[0] == '\0') { 2025185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2026219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2027219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2028168404Spjd } else { 2029168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2030185029Spjd *srctype = ZPROP_SRC_LOCAL; 2031168404Spjd } else { 2032168404Spjd (void) strlcpy(statbuf, source, statlen); 2033185029Spjd *srctype = ZPROP_SRC_INHERITED; 2034168404Spjd } 2035168404Spjd } 2036168404Spjd 2037168404Spjd} 2038168404Spjd 2039219089Spjdint 2040219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2041219089Spjd size_t proplen, boolean_t literal) 2042219089Spjd{ 2043219089Spjd zfs_prop_t prop; 2044219089Spjd int err = 0; 2045219089Spjd 2046219089Spjd if (zhp->zfs_recvd_props == NULL) 2047219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2048219089Spjd return (-1); 2049219089Spjd 2050219089Spjd prop = zfs_name_to_prop(propname); 2051219089Spjd 2052219089Spjd if (prop != ZPROP_INVAL) { 2053219089Spjd uint64_t cookie; 2054219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2055219089Spjd return (-1); 2056219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2057219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2058219089Spjd NULL, NULL, 0, literal); 2059219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2060219089Spjd } else { 2061219089Spjd nvlist_t *propval; 2062219089Spjd char *recvdval; 2063219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2064219089Spjd propname, &propval) != 0) 2065219089Spjd return (-1); 2066219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2067219089Spjd &recvdval) == 0); 2068219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2069219089Spjd } 2070219089Spjd 2071219089Spjd return (err == 0 ? 0 : -1); 2072219089Spjd} 2073219089Spjd 2074228103Smmstatic int 2075228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2076228103Smm{ 2077228103Smm nvlist_t *value; 2078228103Smm nvpair_t *pair; 2079228103Smm 2080228103Smm value = zfs_get_clones_nvl(zhp); 2081228103Smm if (value == NULL) 2082228103Smm return (-1); 2083228103Smm 2084228103Smm propbuf[0] = '\0'; 2085228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2086228103Smm pair = nvlist_next_nvpair(value, pair)) { 2087228103Smm if (propbuf[0] != '\0') 2088228103Smm (void) strlcat(propbuf, ",", proplen); 2089228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2090228103Smm } 2091228103Smm 2092228103Smm return (0); 2093228103Smm} 2094228103Smm 2095228103Smmstruct get_clones_arg { 2096228103Smm uint64_t numclones; 2097228103Smm nvlist_t *value; 2098228103Smm const char *origin; 2099228103Smm char buf[ZFS_MAXNAMELEN]; 2100228103Smm}; 2101228103Smm 2102228103Smmint 2103228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2104228103Smm{ 2105228103Smm struct get_clones_arg *gca = arg; 2106228103Smm 2107228103Smm if (gca->numclones == 0) { 2108228103Smm zfs_close(zhp); 2109228103Smm return (0); 2110228103Smm } 2111228103Smm 2112228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2113228103Smm NULL, NULL, 0, B_TRUE) != 0) 2114228103Smm goto out; 2115228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2116248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2117228103Smm gca->numclones--; 2118228103Smm } 2119228103Smm 2120228103Smmout: 2121228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2122228103Smm zfs_close(zhp); 2123228103Smm return (0); 2124228103Smm} 2125228103Smm 2126228103Smmnvlist_t * 2127228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2128228103Smm{ 2129228103Smm nvlist_t *nv, *value; 2130228103Smm 2131228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2132228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2133228103Smm struct get_clones_arg gca; 2134228103Smm 2135228103Smm /* 2136228103Smm * if this is a snapshot, then the kernel wasn't able 2137228103Smm * to get the clones. Do it by slowly iterating. 2138228103Smm */ 2139228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2140228103Smm return (NULL); 2141228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2142228103Smm return (NULL); 2143228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2144228103Smm nvlist_free(nv); 2145228103Smm return (NULL); 2146228103Smm } 2147228103Smm 2148228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2149228103Smm gca.value = value; 2150228103Smm gca.origin = zhp->zfs_name; 2151228103Smm 2152228103Smm if (gca.numclones != 0) { 2153228103Smm zfs_handle_t *root; 2154228103Smm char pool[ZFS_MAXNAMELEN]; 2155228103Smm char *cp = pool; 2156228103Smm 2157228103Smm /* get the pool name */ 2158228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2159228103Smm (void) strsep(&cp, "/@"); 2160228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2161228103Smm ZFS_TYPE_FILESYSTEM); 2162228103Smm 2163228103Smm (void) get_clones_cb(root, &gca); 2164228103Smm } 2165228103Smm 2166228103Smm if (gca.numclones != 0 || 2167228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2168228103Smm nvlist_add_nvlist(zhp->zfs_props, 2169228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2170228103Smm nvlist_free(nv); 2171228103Smm nvlist_free(value); 2172228103Smm return (NULL); 2173228103Smm } 2174228103Smm nvlist_free(nv); 2175228103Smm nvlist_free(value); 2176228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2177228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2178228103Smm } 2179228103Smm 2180228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2181228103Smm 2182228103Smm return (value); 2183228103Smm} 2184228103Smm 2185168404Spjd/* 2186168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2187168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2188168404Spjd * human-readable form. 2189168404Spjd * 2190168404Spjd * Returns 0 on success, or -1 on error. 2191168404Spjd */ 2192168404Spjdint 2193168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2194185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2195168404Spjd{ 2196168404Spjd char *source = NULL; 2197168404Spjd uint64_t val; 2198168404Spjd char *str; 2199168404Spjd const char *strval; 2200219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2201168404Spjd 2202168404Spjd /* 2203168404Spjd * Check to see if this property applies to our object 2204168404Spjd */ 2205168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2206168404Spjd return (-1); 2207168404Spjd 2208219089Spjd if (received && zfs_prop_readonly(prop)) 2209219089Spjd return (-1); 2210219089Spjd 2211168404Spjd if (src) 2212185029Spjd *src = ZPROP_SRC_NONE; 2213168404Spjd 2214168404Spjd switch (prop) { 2215168404Spjd case ZFS_PROP_CREATION: 2216168404Spjd /* 2217168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2218168404Spjd * this into a string unless 'literal' is specified. 2219168404Spjd */ 2220168404Spjd { 2221168404Spjd val = getprop_uint64(zhp, prop, &source); 2222168404Spjd time_t time = (time_t)val; 2223168404Spjd struct tm t; 2224168404Spjd 2225168404Spjd if (literal || 2226168404Spjd localtime_r(&time, &t) == NULL || 2227168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2228168404Spjd &t) == 0) 2229168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2230168404Spjd } 2231168404Spjd break; 2232168404Spjd 2233168404Spjd case ZFS_PROP_MOUNTPOINT: 2234168404Spjd /* 2235168404Spjd * Getting the precise mountpoint can be tricky. 2236168404Spjd * 2237168404Spjd * - for 'none' or 'legacy', return those values. 2238168404Spjd * - for inherited mountpoints, we want to take everything 2239168404Spjd * after our ancestor and append it to the inherited value. 2240168404Spjd * 2241168404Spjd * If the pool has an alternate root, we want to prepend that 2242168404Spjd * root to any values we return. 2243168404Spjd */ 2244185029Spjd 2245168404Spjd str = getprop_string(zhp, prop, &source); 2246168404Spjd 2247185029Spjd if (str[0] == '/') { 2248185029Spjd char buf[MAXPATHLEN]; 2249185029Spjd char *root = buf; 2250219089Spjd const char *relpath; 2251168404Spjd 2252219089Spjd /* 2253219089Spjd * If we inherit the mountpoint, even from a dataset 2254219089Spjd * with a received value, the source will be the path of 2255219089Spjd * the dataset we inherit from. If source is 2256219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2257219089Spjd * inherited. 2258219089Spjd */ 2259219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2260219089Spjd relpath = ""; 2261219089Spjd } else { 2262219089Spjd relpath = zhp->zfs_name + strlen(source); 2263219089Spjd if (relpath[0] == '/') 2264219089Spjd relpath++; 2265219089Spjd } 2266185029Spjd 2267185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2268263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2269263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2270185029Spjd root[0] = '\0'; 2271185029Spjd /* 2272185029Spjd * Special case an alternate root of '/'. This will 2273185029Spjd * avoid having multiple leading slashes in the 2274185029Spjd * mountpoint path. 2275185029Spjd */ 2276185029Spjd if (strcmp(root, "/") == 0) 2277185029Spjd root++; 2278185029Spjd 2279185029Spjd /* 2280185029Spjd * If the mountpoint is '/' then skip over this 2281185029Spjd * if we are obtaining either an alternate root or 2282185029Spjd * an inherited mountpoint. 2283185029Spjd */ 2284185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2285185029Spjd relpath[0] != '\0')) 2286168404Spjd str++; 2287168404Spjd 2288168404Spjd if (relpath[0] == '\0') 2289168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2290168404Spjd root, str); 2291168404Spjd else 2292168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2293168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2294168404Spjd relpath); 2295168404Spjd } else { 2296168404Spjd /* 'legacy' or 'none' */ 2297168404Spjd (void) strlcpy(propbuf, str, proplen); 2298168404Spjd } 2299168404Spjd 2300168404Spjd break; 2301168404Spjd 2302168404Spjd case ZFS_PROP_ORIGIN: 2303168404Spjd (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), 2304168404Spjd proplen); 2305168404Spjd /* 2306168404Spjd * If there is no parent at all, return failure to indicate that 2307168404Spjd * it doesn't apply to this dataset. 2308168404Spjd */ 2309168404Spjd if (propbuf[0] == '\0') 2310168404Spjd return (-1); 2311168404Spjd break; 2312168404Spjd 2313228103Smm case ZFS_PROP_CLONES: 2314228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2315228103Smm return (-1); 2316228103Smm break; 2317228103Smm 2318168404Spjd case ZFS_PROP_QUOTA: 2319185029Spjd case ZFS_PROP_REFQUOTA: 2320168404Spjd case ZFS_PROP_RESERVATION: 2321185029Spjd case ZFS_PROP_REFRESERVATION: 2322185029Spjd 2323168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2324168404Spjd return (-1); 2325168404Spjd 2326168404Spjd /* 2327168404Spjd * If quota or reservation is 0, we translate this into 'none' 2328168404Spjd * (unless literal is set), and indicate that it's the default 2329168404Spjd * value. Otherwise, we print the number nicely and indicate 2330168404Spjd * that its set locally. 2331168404Spjd */ 2332168404Spjd if (val == 0) { 2333168404Spjd if (literal) 2334168404Spjd (void) strlcpy(propbuf, "0", proplen); 2335168404Spjd else 2336168404Spjd (void) strlcpy(propbuf, "none", proplen); 2337168404Spjd } else { 2338168404Spjd if (literal) 2339168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2340168404Spjd (u_longlong_t)val); 2341168404Spjd else 2342168404Spjd zfs_nicenum(val, propbuf, proplen); 2343168404Spjd } 2344168404Spjd break; 2345168404Spjd 2346264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2347264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2348264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2349264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2350264835Sdelphij 2351264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2352264835Sdelphij return (-1); 2353264835Sdelphij 2354264835Sdelphij /* 2355264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2356264835Sdelphij * literal is set), and indicate that it's the default value. 2357264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2358264835Sdelphij * set locally. 2359264835Sdelphij */ 2360264835Sdelphij if (literal) { 2361264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2362264835Sdelphij (u_longlong_t)val); 2363264835Sdelphij } else if (val == UINT64_MAX) { 2364264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2365264835Sdelphij } else { 2366264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2367264835Sdelphij } 2368264835Sdelphij break; 2369264835Sdelphij 2370223623Smm case ZFS_PROP_REFRATIO: 2371168404Spjd case ZFS_PROP_COMPRESSRATIO: 2372168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2373168404Spjd return (-1); 2374219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2375219089Spjd (u_longlong_t)(val / 100), 2376219089Spjd (u_longlong_t)(val % 100)); 2377168404Spjd break; 2378168404Spjd 2379168404Spjd case ZFS_PROP_TYPE: 2380168404Spjd switch (zhp->zfs_type) { 2381168404Spjd case ZFS_TYPE_FILESYSTEM: 2382168404Spjd str = "filesystem"; 2383168404Spjd break; 2384168404Spjd case ZFS_TYPE_VOLUME: 2385168404Spjd str = "volume"; 2386168404Spjd break; 2387168404Spjd case ZFS_TYPE_SNAPSHOT: 2388168404Spjd str = "snapshot"; 2389168404Spjd break; 2390260183Sdelphij case ZFS_TYPE_BOOKMARK: 2391260183Sdelphij str = "bookmark"; 2392260183Sdelphij break; 2393168404Spjd default: 2394168404Spjd abort(); 2395168404Spjd } 2396168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2397168404Spjd break; 2398168404Spjd 2399168404Spjd case ZFS_PROP_MOUNTED: 2400168404Spjd /* 2401168404Spjd * The 'mounted' property is a pseudo-property that described 2402168404Spjd * whether the filesystem is currently mounted. Even though 2403168404Spjd * it's a boolean value, the typical values of "on" and "off" 2404168404Spjd * don't make sense, so we translate to "yes" and "no". 2405168404Spjd */ 2406168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2407168404Spjd src, &source, &val) != 0) 2408168404Spjd return (-1); 2409168404Spjd if (val) 2410168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2411168404Spjd else 2412168404Spjd (void) strlcpy(propbuf, "no", proplen); 2413168404Spjd break; 2414168404Spjd 2415168404Spjd case ZFS_PROP_NAME: 2416168404Spjd /* 2417168404Spjd * The 'name' property is a pseudo-property derived from the 2418168404Spjd * dataset name. It is presented as a real property to simplify 2419168404Spjd * consumers. 2420168404Spjd */ 2421168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2422168404Spjd break; 2423168404Spjd 2424219089Spjd case ZFS_PROP_MLSLABEL: 2425219089Spjd { 2426277300Ssmh#ifdef illumos 2427219089Spjd m_label_t *new_sl = NULL; 2428219089Spjd char *ascii = NULL; /* human readable label */ 2429219089Spjd 2430219089Spjd (void) strlcpy(propbuf, 2431219089Spjd getprop_string(zhp, prop, &source), proplen); 2432219089Spjd 2433219089Spjd if (literal || (strcasecmp(propbuf, 2434219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2435219089Spjd break; 2436219089Spjd 2437219089Spjd /* 2438219089Spjd * Try to translate the internal hex string to 2439219089Spjd * human-readable output. If there are any 2440219089Spjd * problems just use the hex string. 2441219089Spjd */ 2442219089Spjd 2443219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2444219089Spjd L_NO_CORRECTION, NULL) == -1) { 2445219089Spjd m_label_free(new_sl); 2446219089Spjd break; 2447219089Spjd } 2448219089Spjd 2449219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2450219089Spjd DEF_NAMES) != 0) { 2451219089Spjd if (ascii) 2452219089Spjd free(ascii); 2453219089Spjd m_label_free(new_sl); 2454219089Spjd break; 2455219089Spjd } 2456219089Spjd m_label_free(new_sl); 2457219089Spjd 2458219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2459219089Spjd free(ascii); 2460277300Ssmh#else /* !illumos */ 2461219089Spjd propbuf[0] = '\0'; 2462277300Ssmh#endif /* illumos */ 2463219089Spjd } 2464219089Spjd break; 2465219089Spjd 2466236705Smm case ZFS_PROP_GUID: 2467236705Smm /* 2468236705Smm * GUIDs are stored as numbers, but they are identifiers. 2469236705Smm * We don't want them to be pretty printed, because pretty 2470236705Smm * printing mangles the ID into a truncated and useless value. 2471236705Smm */ 2472236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2473236705Smm return (-1); 2474236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2475236705Smm break; 2476236705Smm 2477168404Spjd default: 2478185029Spjd switch (zfs_prop_get_type(prop)) { 2479185029Spjd case PROP_TYPE_NUMBER: 2480185029Spjd if (get_numeric_property(zhp, prop, src, 2481185029Spjd &source, &val) != 0) 2482185029Spjd return (-1); 2483185029Spjd if (literal) 2484185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2485185029Spjd (u_longlong_t)val); 2486185029Spjd else 2487185029Spjd zfs_nicenum(val, propbuf, proplen); 2488185029Spjd break; 2489185029Spjd 2490185029Spjd case PROP_TYPE_STRING: 2491185029Spjd (void) strlcpy(propbuf, 2492185029Spjd getprop_string(zhp, prop, &source), proplen); 2493185029Spjd break; 2494185029Spjd 2495185029Spjd case PROP_TYPE_INDEX: 2496185029Spjd if (get_numeric_property(zhp, prop, src, 2497185029Spjd &source, &val) != 0) 2498185029Spjd return (-1); 2499185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2500185029Spjd return (-1); 2501185029Spjd (void) strlcpy(propbuf, strval, proplen); 2502185029Spjd break; 2503185029Spjd 2504185029Spjd default: 2505185029Spjd abort(); 2506185029Spjd } 2507168404Spjd } 2508168404Spjd 2509168404Spjd get_source(zhp, src, source, statbuf, statlen); 2510168404Spjd 2511168404Spjd return (0); 2512168404Spjd} 2513168404Spjd 2514168404Spjd/* 2515168404Spjd * Utility function to get the given numeric property. Does no validation that 2516168404Spjd * the given property is the appropriate type; should only be used with 2517168404Spjd * hard-coded property types. 2518168404Spjd */ 2519168404Spjduint64_t 2520168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2521168404Spjd{ 2522168404Spjd char *source; 2523168404Spjd uint64_t val; 2524168404Spjd 2525185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2526168404Spjd 2527168404Spjd return (val); 2528168404Spjd} 2529168404Spjd 2530185029Spjdint 2531185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2532185029Spjd{ 2533185029Spjd char buf[64]; 2534185029Spjd 2535209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2536185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2537185029Spjd} 2538185029Spjd 2539168404Spjd/* 2540168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2541168404Spjd */ 2542168404Spjdint 2543168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2544185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2545168404Spjd{ 2546168404Spjd char *source; 2547168404Spjd 2548168404Spjd /* 2549168404Spjd * Check to see if this property applies to our object 2550168404Spjd */ 2551185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2552168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2553168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2554168404Spjd zfs_prop_to_name(prop))); 2555185029Spjd } 2556168404Spjd 2557168404Spjd if (src) 2558185029Spjd *src = ZPROP_SRC_NONE; 2559168404Spjd 2560168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2561168404Spjd return (-1); 2562168404Spjd 2563168404Spjd get_source(zhp, src, source, statbuf, statlen); 2564168404Spjd 2565168404Spjd return (0); 2566168404Spjd} 2567168404Spjd 2568209962Smmstatic int 2569209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2570209962Smm char **domainp, idmap_rid_t *ridp) 2571209962Smm{ 2572277300Ssmh#ifdef illumos 2573209962Smm idmap_get_handle_t *get_hdl = NULL; 2574209962Smm idmap_stat status; 2575209962Smm int err = EINVAL; 2576209962Smm 2577219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2578209962Smm goto out; 2579209962Smm 2580209962Smm if (isuser) { 2581209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2582209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2583209962Smm } else { 2584209962Smm err = idmap_get_sidbygid(get_hdl, id, 2585209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2586209962Smm } 2587209962Smm if (err == IDMAP_SUCCESS && 2588209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2589209962Smm status == IDMAP_SUCCESS) 2590209962Smm err = 0; 2591209962Smm else 2592209962Smm err = EINVAL; 2593209962Smmout: 2594209962Smm if (get_hdl) 2595209962Smm idmap_get_destroy(get_hdl); 2596209962Smm return (err); 2597277300Ssmh#else /* !illumos */ 2598209962Smm assert(!"invalid code path"); 2599264852Ssmh return (EINVAL); // silence compiler warning 2600277300Ssmh#endif /* illumos */ 2601209962Smm} 2602209962Smm 2603168404Spjd/* 2604209962Smm * convert the propname into parameters needed by kernel 2605209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2606209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2607209962Smm */ 2608209962Smmstatic int 2609209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2610209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2611209962Smm{ 2612209962Smm zfs_userquota_prop_t type; 2613209962Smm char *cp, *end; 2614209962Smm char *numericsid = NULL; 2615209962Smm boolean_t isuser; 2616209962Smm 2617209962Smm domain[0] = '\0'; 2618275579Sdelphij *ridp = 0; 2619209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2620209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2621209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2622209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2623209962Smm break; 2624209962Smm } 2625209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2626209962Smm return (EINVAL); 2627209962Smm *typep = type; 2628209962Smm 2629209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2630209962Smm type == ZFS_PROP_USERUSED); 2631209962Smm 2632209962Smm cp = strchr(propname, '@') + 1; 2633209962Smm 2634209962Smm if (strchr(cp, '@')) { 2635277300Ssmh#ifdef illumos 2636209962Smm /* 2637209962Smm * It's a SID name (eg "user@domain") that needs to be 2638209962Smm * turned into S-1-domainID-RID. 2639209962Smm */ 2640275579Sdelphij int flag = 0; 2641275579Sdelphij idmap_stat stat, map_stat; 2642275579Sdelphij uid_t pid; 2643275579Sdelphij idmap_rid_t rid; 2644275579Sdelphij idmap_get_handle_t *gh = NULL; 2645275579Sdelphij 2646275579Sdelphij stat = idmap_get_create(&gh); 2647275579Sdelphij if (stat != IDMAP_SUCCESS) { 2648275579Sdelphij idmap_get_destroy(gh); 2649275579Sdelphij return (ENOMEM); 2650275579Sdelphij } 2651209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2652209962Smm return (ENOENT); 2653209962Smm if (isuser) { 2654275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2655275579Sdelphij if (stat < 0) 2656275579Sdelphij return (ENOENT); 2657275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2658275579Sdelphij &rid, &map_stat); 2659209962Smm } else { 2660275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2661275579Sdelphij if (stat < 0) 2662275579Sdelphij return (ENOENT); 2663275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2664275579Sdelphij &rid, &map_stat); 2665209962Smm } 2666275579Sdelphij if (stat < 0) { 2667275579Sdelphij idmap_get_destroy(gh); 2668209962Smm return (ENOENT); 2669209962Smm } 2670275579Sdelphij stat = idmap_get_mappings(gh); 2671275579Sdelphij idmap_get_destroy(gh); 2672275579Sdelphij 2673275579Sdelphij if (stat < 0) { 2674275579Sdelphij return (ENOENT); 2675275579Sdelphij } 2676209962Smm if (numericsid == NULL) 2677209962Smm return (ENOENT); 2678209962Smm cp = numericsid; 2679275579Sdelphij *ridp = rid; 2680209962Smm /* will be further decoded below */ 2681277300Ssmh#else /* !illumos */ 2682219089Spjd return (ENOENT); 2683277300Ssmh#endif /* illumos */ 2684209962Smm } 2685209962Smm 2686209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2687209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2688209962Smm (void) strlcpy(domain, cp, domainlen); 2689209962Smm errno = 0; 2690275579Sdelphij if (*ridp == 0) { 2691275579Sdelphij cp = strrchr(domain, '-'); 2692275579Sdelphij *cp = '\0'; 2693275579Sdelphij cp++; 2694275579Sdelphij *ridp = strtoull(cp, &end, 10); 2695275579Sdelphij } else { 2696275579Sdelphij end = ""; 2697275579Sdelphij } 2698209962Smm if (numericsid) { 2699209962Smm free(numericsid); 2700209962Smm numericsid = NULL; 2701209962Smm } 2702209962Smm if (errno != 0 || *end != '\0') 2703209962Smm return (EINVAL); 2704209962Smm } else if (!isdigit(*cp)) { 2705209962Smm /* 2706209962Smm * It's a user/group name (eg "user") that needs to be 2707209962Smm * turned into a uid/gid 2708209962Smm */ 2709209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2710209962Smm return (ENOENT); 2711209962Smm if (isuser) { 2712209962Smm struct passwd *pw; 2713209962Smm pw = getpwnam(cp); 2714209962Smm if (pw == NULL) 2715209962Smm return (ENOENT); 2716209962Smm *ridp = pw->pw_uid; 2717209962Smm } else { 2718209962Smm struct group *gr; 2719209962Smm gr = getgrnam(cp); 2720209962Smm if (gr == NULL) 2721209962Smm return (ENOENT); 2722209962Smm *ridp = gr->gr_gid; 2723209962Smm } 2724209962Smm } else { 2725209962Smm /* It's a user/group ID (eg "12345"). */ 2726209962Smm uid_t id = strtoul(cp, &end, 10); 2727209962Smm idmap_rid_t rid; 2728209962Smm char *mapdomain; 2729209962Smm 2730209962Smm if (*end != '\0') 2731209962Smm return (EINVAL); 2732209962Smm if (id > MAXUID) { 2733209962Smm /* It's an ephemeral ID. */ 2734209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2735209962Smm &mapdomain, &rid) != 0) 2736209962Smm return (ENOENT); 2737209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2738209962Smm *ridp = rid; 2739209962Smm } else { 2740209962Smm *ridp = id; 2741209962Smm } 2742209962Smm } 2743209962Smm 2744209962Smm ASSERT3P(numericsid, ==, NULL); 2745209962Smm return (0); 2746209962Smm} 2747209962Smm 2748209962Smmstatic int 2749209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2750209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2751209962Smm{ 2752209962Smm int err; 2753209962Smm zfs_cmd_t zc = { 0 }; 2754209962Smm 2755228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2756209962Smm 2757209962Smm err = userquota_propname_decode(propname, 2758209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2759209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2760209962Smm zc.zc_objset_type = *typep; 2761209962Smm if (err) 2762209962Smm return (err); 2763209962Smm 2764209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2765209962Smm if (err) 2766209962Smm return (err); 2767209962Smm 2768209962Smm *propvalue = zc.zc_cookie; 2769209962Smm return (0); 2770209962Smm} 2771209962Smm 2772209962Smmint 2773209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2774209962Smm uint64_t *propvalue) 2775209962Smm{ 2776209962Smm zfs_userquota_prop_t type; 2777209962Smm 2778209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2779209962Smm &type)); 2780209962Smm} 2781209962Smm 2782209962Smmint 2783209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2784209962Smm char *propbuf, int proplen, boolean_t literal) 2785209962Smm{ 2786209962Smm int err; 2787209962Smm uint64_t propvalue; 2788209962Smm zfs_userquota_prop_t type; 2789209962Smm 2790209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2791209962Smm &type); 2792209962Smm 2793209962Smm if (err) 2794209962Smm return (err); 2795209962Smm 2796209962Smm if (literal) { 2797209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2798209962Smm } else if (propvalue == 0 && 2799209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2800209962Smm (void) strlcpy(propbuf, "none", proplen); 2801209962Smm } else { 2802209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2803209962Smm } 2804209962Smm return (0); 2805209962Smm} 2806209962Smm 2807228103Smmint 2808228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2809228103Smm uint64_t *propvalue) 2810168404Spjd{ 2811228103Smm int err; 2812228103Smm zfs_cmd_t zc = { 0 }; 2813228103Smm const char *snapname; 2814168404Spjd 2815228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2816168404Spjd 2817228103Smm snapname = strchr(propname, '@') + 1; 2818228103Smm if (strchr(snapname, '@')) { 2819228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2820228103Smm } else { 2821228103Smm /* snapname is the short name, append it to zhp's fsname */ 2822228103Smm char *cp; 2823209962Smm 2824228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2825228103Smm sizeof (zc.zc_value)); 2826228103Smm cp = strchr(zc.zc_value, '@'); 2827228103Smm if (cp != NULL) 2828228103Smm *cp = '\0'; 2829228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2830228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2831228103Smm } 2832209962Smm 2833228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2834228103Smm if (err) 2835228103Smm return (err); 2836228103Smm 2837228103Smm *propvalue = zc.zc_cookie; 2838228103Smm return (0); 2839209962Smm} 2840209962Smm 2841168404Spjdint 2842228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2843228103Smm char *propbuf, int proplen, boolean_t literal) 2844168404Spjd{ 2845228103Smm int err; 2846228103Smm uint64_t propvalue; 2847168404Spjd 2848228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2849185029Spjd 2850228103Smm if (err) 2851228103Smm return (err); 2852209962Smm 2853228103Smm if (literal) { 2854228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2855228103Smm } else { 2856228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2857168404Spjd } 2858228103Smm return (0); 2859168404Spjd} 2860168404Spjd 2861168404Spjd/* 2862228103Smm * Returns the name of the given zfs handle. 2863168404Spjd */ 2864228103Smmconst char * 2865228103Smmzfs_get_name(const zfs_handle_t *zhp) 2866168404Spjd{ 2867228103Smm return (zhp->zfs_name); 2868228103Smm} 2869168404Spjd 2870228103Smm/* 2871228103Smm * Returns the type of the given zfs handle. 2872228103Smm */ 2873228103Smmzfs_type_t 2874228103Smmzfs_get_type(const zfs_handle_t *zhp) 2875228103Smm{ 2876228103Smm return (zhp->zfs_type); 2877168404Spjd} 2878168404Spjd 2879168404Spjd/* 2880219089Spjd * Is one dataset name a child dataset of another? 2881219089Spjd * 2882219089Spjd * Needs to handle these cases: 2883219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2884219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2885219089Spjd * Descendant? No. No. No. Yes. 2886219089Spjd */ 2887219089Spjdstatic boolean_t 2888219089Spjdis_descendant(const char *ds1, const char *ds2) 2889219089Spjd{ 2890219089Spjd size_t d1len = strlen(ds1); 2891219089Spjd 2892219089Spjd /* ds2 can't be a descendant if it's smaller */ 2893219089Spjd if (strlen(ds2) < d1len) 2894219089Spjd return (B_FALSE); 2895219089Spjd 2896219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2897219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2898219089Spjd} 2899219089Spjd 2900219089Spjd/* 2901168404Spjd * Given a complete name, return just the portion that refers to the parent. 2902228103Smm * Will return -1 if there is no parent (path is just the name of the 2903228103Smm * pool). 2904168404Spjd */ 2905168404Spjdstatic int 2906168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2907168404Spjd{ 2908228103Smm char *slashp; 2909168404Spjd 2910228103Smm (void) strlcpy(buf, path, buflen); 2911228103Smm 2912228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 2913168404Spjd return (-1); 2914228103Smm *slashp = '\0'; 2915168404Spjd 2916168404Spjd return (0); 2917168404Spjd} 2918168404Spjd 2919168404Spjd/* 2920185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 2921185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 2922185029Spjd * closest existing ancestor for the given path. In prefixlen return the 2923185029Spjd * length of already existing prefix of the given path. We also fetch the 2924185029Spjd * 'zoned' property, which is used to validate property settings when creating 2925185029Spjd * new datasets. 2926168404Spjd */ 2927168404Spjdstatic int 2928185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 2929185029Spjd boolean_t accept_ancestor, int *prefixlen) 2930168404Spjd{ 2931168404Spjd zfs_cmd_t zc = { 0 }; 2932168404Spjd char parent[ZFS_MAXNAMELEN]; 2933168404Spjd char *slash; 2934168404Spjd zfs_handle_t *zhp; 2935168404Spjd char errbuf[1024]; 2936219089Spjd uint64_t is_zoned; 2937168404Spjd 2938209962Smm (void) snprintf(errbuf, sizeof (errbuf), 2939209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 2940168404Spjd 2941168404Spjd /* get parent, and check to see if this is just a pool */ 2942168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 2943168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2944168404Spjd "missing dataset name")); 2945168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2946168404Spjd } 2947168404Spjd 2948168404Spjd /* check to see if the pool exists */ 2949168404Spjd if ((slash = strchr(parent, '/')) == NULL) 2950168404Spjd slash = parent + strlen(parent); 2951168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 2952168404Spjd zc.zc_name[slash - parent] = '\0'; 2953168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 2954168404Spjd errno == ENOENT) { 2955168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2956168404Spjd "no such pool '%s'"), zc.zc_name); 2957168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2958168404Spjd } 2959168404Spjd 2960168404Spjd /* check to see if the parent dataset exists */ 2961185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 2962185029Spjd if (errno == ENOENT && accept_ancestor) { 2963185029Spjd /* 2964185029Spjd * Go deeper to find an ancestor, give up on top level. 2965185029Spjd */ 2966185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 2967185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2968185029Spjd "no such pool '%s'"), zc.zc_name); 2969185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2970185029Spjd } 2971185029Spjd } else if (errno == ENOENT) { 2972168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2973168404Spjd "parent does not exist")); 2974168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2975185029Spjd } else 2976168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 2977168404Spjd } 2978168404Spjd 2979219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 2980219089Spjd if (zoned != NULL) 2981219089Spjd *zoned = is_zoned; 2982219089Spjd 2983168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 2984219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 2985168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 2986168404Spjd zfs_close(zhp); 2987168404Spjd return (-1); 2988168404Spjd } 2989168404Spjd 2990168404Spjd /* make sure parent is a filesystem */ 2991168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 2992168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2993168404Spjd "parent is not a filesystem")); 2994168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 2995168404Spjd zfs_close(zhp); 2996168404Spjd return (-1); 2997168404Spjd } 2998168404Spjd 2999168404Spjd zfs_close(zhp); 3000185029Spjd if (prefixlen != NULL) 3001185029Spjd *prefixlen = strlen(parent); 3002168404Spjd return (0); 3003168404Spjd} 3004168404Spjd 3005168404Spjd/* 3006185029Spjd * Finds whether the dataset of the given type(s) exists. 3007185029Spjd */ 3008185029Spjdboolean_t 3009185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3010185029Spjd{ 3011185029Spjd zfs_handle_t *zhp; 3012185029Spjd 3013185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3014185029Spjd return (B_FALSE); 3015185029Spjd 3016185029Spjd /* 3017185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3018185029Spjd */ 3019185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3020185029Spjd int ds_type = zhp->zfs_type; 3021185029Spjd 3022185029Spjd zfs_close(zhp); 3023185029Spjd if (types & ds_type) 3024185029Spjd return (B_TRUE); 3025185029Spjd } 3026185029Spjd return (B_FALSE); 3027185029Spjd} 3028185029Spjd 3029185029Spjd/* 3030185029Spjd * Given a path to 'target', create all the ancestors between 3031185029Spjd * the prefixlen portion of the path, and the target itself. 3032185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3033185029Spjd */ 3034185029Spjdint 3035185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3036185029Spjd{ 3037185029Spjd zfs_handle_t *h; 3038185029Spjd char *cp; 3039185029Spjd const char *opname; 3040185029Spjd 3041185029Spjd /* make sure prefix exists */ 3042185029Spjd cp = target + prefixlen; 3043185029Spjd if (*cp != '/') { 3044185029Spjd assert(strchr(cp, '/') == NULL); 3045185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3046185029Spjd } else { 3047185029Spjd *cp = '\0'; 3048185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3049185029Spjd *cp = '/'; 3050185029Spjd } 3051185029Spjd if (h == NULL) 3052185029Spjd return (-1); 3053185029Spjd zfs_close(h); 3054185029Spjd 3055185029Spjd /* 3056185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3057185029Spjd * up to the prefixlen-long one. 3058185029Spjd */ 3059185029Spjd for (cp = target + prefixlen + 1; 3060185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 3061185029Spjd 3062185029Spjd *cp = '\0'; 3063185029Spjd 3064185029Spjd h = make_dataset_handle(hdl, target); 3065185029Spjd if (h) { 3066185029Spjd /* it already exists, nothing to do here */ 3067185029Spjd zfs_close(h); 3068185029Spjd continue; 3069185029Spjd } 3070185029Spjd 3071185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3072185029Spjd NULL) != 0) { 3073185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3074185029Spjd goto ancestorerr; 3075185029Spjd } 3076185029Spjd 3077185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3078185029Spjd if (h == NULL) { 3079185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3080185029Spjd goto ancestorerr; 3081185029Spjd } 3082185029Spjd 3083185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3084185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3085185029Spjd goto ancestorerr; 3086185029Spjd } 3087185029Spjd 3088185029Spjd if (zfs_share(h) != 0) { 3089185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3090185029Spjd goto ancestorerr; 3091185029Spjd } 3092185029Spjd 3093185029Spjd zfs_close(h); 3094185029Spjd } 3095185029Spjd 3096185029Spjd return (0); 3097185029Spjd 3098185029Spjdancestorerr: 3099185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3100185029Spjd "failed to %s ancestor '%s'"), opname, target); 3101185029Spjd return (-1); 3102185029Spjd} 3103185029Spjd 3104185029Spjd/* 3105185029Spjd * Creates non-existing ancestors of the given path. 3106185029Spjd */ 3107185029Spjdint 3108185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3109185029Spjd{ 3110185029Spjd int prefix; 3111185029Spjd char *path_copy; 3112185029Spjd int rc; 3113185029Spjd 3114219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3115185029Spjd return (-1); 3116185029Spjd 3117185029Spjd if ((path_copy = strdup(path)) != NULL) { 3118185029Spjd rc = create_parents(hdl, path_copy, prefix); 3119185029Spjd free(path_copy); 3120185029Spjd } 3121185029Spjd if (path_copy == NULL || rc != 0) 3122185029Spjd return (-1); 3123185029Spjd 3124185029Spjd return (0); 3125185029Spjd} 3126185029Spjd 3127185029Spjd/* 3128168404Spjd * Create a new filesystem or volume. 3129168404Spjd */ 3130168404Spjdint 3131168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3132168404Spjd nvlist_t *props) 3133168404Spjd{ 3134168404Spjd int ret; 3135168404Spjd uint64_t size = 0; 3136168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3137168404Spjd char errbuf[1024]; 3138168404Spjd uint64_t zoned; 3139248571Smm dmu_objset_type_t ost; 3140168404Spjd 3141168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3142168404Spjd "cannot create '%s'"), path); 3143168404Spjd 3144168404Spjd /* validate the path, taking care to note the extended error message */ 3145185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3146168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3147168404Spjd 3148168404Spjd /* validate parents exist */ 3149185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3150168404Spjd return (-1); 3151168404Spjd 3152168404Spjd /* 3153168404Spjd * The failure modes when creating a dataset of a different type over 3154168404Spjd * one that already exists is a little strange. In particular, if you 3155168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3156168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3157168404Spjd * first try to see if the dataset exists. 3158168404Spjd */ 3159248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3160168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3161168404Spjd "dataset already exists")); 3162168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3163168404Spjd } 3164168404Spjd 3165168404Spjd if (type == ZFS_TYPE_VOLUME) 3166248571Smm ost = DMU_OST_ZVOL; 3167168404Spjd else 3168248571Smm ost = DMU_OST_ZFS; 3169168404Spjd 3170185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3171168404Spjd zoned, NULL, errbuf)) == 0) 3172168404Spjd return (-1); 3173168404Spjd 3174168404Spjd if (type == ZFS_TYPE_VOLUME) { 3175168404Spjd /* 3176168404Spjd * If we are creating a volume, the size and block size must 3177168404Spjd * satisfy a few restraints. First, the blocksize must be a 3178168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3179168404Spjd * volsize must be a multiple of the block size, and cannot be 3180168404Spjd * zero. 3181168404Spjd */ 3182168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3183168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3184168404Spjd nvlist_free(props); 3185168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3186168404Spjd "missing volume size")); 3187168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3188168404Spjd } 3189168404Spjd 3190168404Spjd if ((ret = nvlist_lookup_uint64(props, 3191168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3192168404Spjd &blocksize)) != 0) { 3193168404Spjd if (ret == ENOENT) { 3194168404Spjd blocksize = zfs_prop_default_numeric( 3195168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3196168404Spjd } else { 3197168404Spjd nvlist_free(props); 3198168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3199168404Spjd "missing volume block size")); 3200168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3201168404Spjd } 3202168404Spjd } 3203168404Spjd 3204168404Spjd if (size == 0) { 3205168404Spjd nvlist_free(props); 3206168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3207168404Spjd "volume size cannot be zero")); 3208168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3209168404Spjd } 3210168404Spjd 3211168404Spjd if (size % blocksize != 0) { 3212168404Spjd nvlist_free(props); 3213168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3214168404Spjd "volume size must be a multiple of volume block " 3215168404Spjd "size")); 3216168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3217168404Spjd } 3218168404Spjd } 3219168404Spjd 3220248571Smm /* create the dataset */ 3221248571Smm ret = lzc_create(path, ost, props); 3222168404Spjd nvlist_free(props); 3223168404Spjd 3224168404Spjd /* check for failure */ 3225168404Spjd if (ret != 0) { 3226168404Spjd char parent[ZFS_MAXNAMELEN]; 3227168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3228168404Spjd 3229168404Spjd switch (errno) { 3230168404Spjd case ENOENT: 3231168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3232168404Spjd "no such parent '%s'"), parent); 3233168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3234168404Spjd 3235168404Spjd case EINVAL: 3236168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3237168404Spjd "parent '%s' is not a filesystem"), parent); 3238168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3239168404Spjd 3240168404Spjd case EDOM: 3241168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3242168404Spjd "volume block size must be power of 2 from " 3243274337Sdelphij "512B to 128KB")); 3244168404Spjd 3245168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3246168404Spjd 3247185029Spjd case ENOTSUP: 3248185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3249185029Spjd "pool must be upgraded to set this " 3250185029Spjd "property or value")); 3251185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3252168404Spjd#ifdef _ILP32 3253168404Spjd case EOVERFLOW: 3254168404Spjd /* 3255168404Spjd * This platform can't address a volume this big. 3256168404Spjd */ 3257168404Spjd if (type == ZFS_TYPE_VOLUME) 3258168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3259168404Spjd errbuf)); 3260168404Spjd#endif 3261168404Spjd /* FALLTHROUGH */ 3262168404Spjd default: 3263168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3264168404Spjd } 3265168404Spjd } 3266168404Spjd 3267168404Spjd return (0); 3268168404Spjd} 3269168404Spjd 3270168404Spjd/* 3271168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3272238422Smm * isn't mounted, and that there are no active dependents. If the file system 3273238422Smm * does not exist this function does nothing. 3274168404Spjd */ 3275168404Spjdint 3276219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3277168404Spjd{ 3278168404Spjd zfs_cmd_t zc = { 0 }; 3279168404Spjd 3280260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3281260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3282260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3283260183Sdelphij int error = lzc_destroy_bookmarks(nv, NULL); 3284260183Sdelphij fnvlist_free(nv); 3285260183Sdelphij if (error != 0) { 3286260183Sdelphij return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3287260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3288260183Sdelphij zhp->zfs_name)); 3289260183Sdelphij } 3290260183Sdelphij return (0); 3291260183Sdelphij } 3292260183Sdelphij 3293168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3294168404Spjd 3295168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3296168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3297168404Spjd } else { 3298168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3299168404Spjd } 3300168404Spjd 3301219089Spjd zc.zc_defer_destroy = defer; 3302238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3303238422Smm errno != ENOENT) { 3304168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3305168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3306168404Spjd zhp->zfs_name)); 3307168404Spjd } 3308168404Spjd 3309168404Spjd remove_mountpoint(zhp); 3310168404Spjd 3311168404Spjd return (0); 3312168404Spjd} 3313168404Spjd 3314168404Spjdstruct destroydata { 3315228103Smm nvlist_t *nvl; 3316228103Smm const char *snapname; 3317168404Spjd}; 3318168404Spjd 3319168404Spjdstatic int 3320219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3321168404Spjd{ 3322168404Spjd struct destroydata *dd = arg; 3323168404Spjd char name[ZFS_MAXNAMELEN]; 3324219089Spjd int rv = 0; 3325168404Spjd 3326228103Smm (void) snprintf(name, sizeof (name), 3327228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3328168404Spjd 3329251646Sdelphij if (lzc_exists(name)) 3330228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3331168404Spjd 3332228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3333228103Smm zfs_close(zhp); 3334168404Spjd return (rv); 3335168404Spjd} 3336168404Spjd 3337168404Spjd/* 3338168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3339168404Spjd */ 3340168404Spjdint 3341219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3342168404Spjd{ 3343168404Spjd int ret; 3344168404Spjd struct destroydata dd = { 0 }; 3345168404Spjd 3346168404Spjd dd.snapname = snapname; 3347228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3348228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3349168404Spjd 3350251646Sdelphij if (nvlist_empty(dd.nvl)) { 3351228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3352168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3353228103Smm zhp->zfs_name, snapname); 3354228103Smm } else { 3355248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3356168404Spjd } 3357228103Smm nvlist_free(dd.nvl); 3358228103Smm return (ret); 3359228103Smm} 3360168404Spjd 3361228103Smm/* 3362248571Smm * Destroys all the snapshots named in the nvlist. 3363228103Smm */ 3364228103Smmint 3365248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3366228103Smm{ 3367228103Smm int ret; 3368248571Smm nvlist_t *errlist; 3369228103Smm 3370248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3371168404Spjd 3372248571Smm if (ret == 0) 3373248571Smm return (0); 3374248571Smm 3375251646Sdelphij if (nvlist_empty(errlist)) { 3376168404Spjd char errbuf[1024]; 3377248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3378248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3379168404Spjd 3380248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3381248571Smm } 3382248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3383248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3384248571Smm char errbuf[1024]; 3385248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3386248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3387248571Smm nvpair_name(pair)); 3388168404Spjd 3389248571Smm switch (fnvpair_value_int32(pair)) { 3390168404Spjd case EEXIST: 3391248571Smm zfs_error_aux(hdl, 3392248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3393248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3394248571Smm break; 3395168404Spjd default: 3396248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3397248571Smm break; 3398168404Spjd } 3399168404Spjd } 3400168404Spjd 3401248571Smm return (ret); 3402168404Spjd} 3403168404Spjd 3404168404Spjd/* 3405168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3406168404Spjd */ 3407168404Spjdint 3408168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3409168404Spjd{ 3410168404Spjd char parent[ZFS_MAXNAMELEN]; 3411168404Spjd int ret; 3412168404Spjd char errbuf[1024]; 3413168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3414168404Spjd uint64_t zoned; 3415168404Spjd 3416168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3417168404Spjd 3418168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3419168404Spjd "cannot create '%s'"), target); 3420168404Spjd 3421228103Smm /* validate the target/clone name */ 3422185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3423168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3424168404Spjd 3425168404Spjd /* validate parents exist */ 3426185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3427168404Spjd return (-1); 3428168404Spjd 3429168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3430168404Spjd 3431168404Spjd /* do the clone */ 3432168404Spjd 3433168404Spjd if (props) { 3434248571Smm zfs_type_t type; 3435248571Smm if (ZFS_IS_VOLUME(zhp)) { 3436248571Smm type = ZFS_TYPE_VOLUME; 3437248571Smm } else { 3438248571Smm type = ZFS_TYPE_FILESYSTEM; 3439248571Smm } 3440185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3441185029Spjd zhp, errbuf)) == NULL) 3442168404Spjd return (-1); 3443168404Spjd } 3444168404Spjd 3445248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3446248571Smm nvlist_free(props); 3447168404Spjd 3448168404Spjd if (ret != 0) { 3449168404Spjd switch (errno) { 3450168404Spjd 3451168404Spjd case ENOENT: 3452168404Spjd /* 3453168404Spjd * The parent doesn't exist. We should have caught this 3454168404Spjd * above, but there may a race condition that has since 3455168404Spjd * destroyed the parent. 3456168404Spjd * 3457168404Spjd * At this point, we don't know whether it's the source 3458168404Spjd * that doesn't exist anymore, or whether the target 3459168404Spjd * dataset doesn't exist. 3460168404Spjd */ 3461168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3462168404Spjd "no such parent '%s'"), parent); 3463168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3464168404Spjd 3465168404Spjd case EXDEV: 3466168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3467168404Spjd "source and target pools differ")); 3468168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3469168404Spjd errbuf)); 3470168404Spjd 3471168404Spjd default: 3472168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3473168404Spjd errbuf)); 3474168404Spjd } 3475168404Spjd } 3476168404Spjd 3477168404Spjd return (ret); 3478168404Spjd} 3479168404Spjd 3480168404Spjd/* 3481168404Spjd * Promotes the given clone fs to be the clone parent. 3482168404Spjd */ 3483168404Spjdint 3484168404Spjdzfs_promote(zfs_handle_t *zhp) 3485168404Spjd{ 3486168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3487168404Spjd zfs_cmd_t zc = { 0 }; 3488168404Spjd char parent[MAXPATHLEN]; 3489168404Spjd int ret; 3490168404Spjd char errbuf[1024]; 3491168404Spjd 3492168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3493168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3494168404Spjd 3495168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3496168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3497168404Spjd "snapshots can not be promoted")); 3498168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3499168404Spjd } 3500168404Spjd 3501185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3502168404Spjd if (parent[0] == '\0') { 3503168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3504168404Spjd "not a cloned filesystem")); 3505168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3506168404Spjd } 3507168404Spjd 3508185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3509168404Spjd sizeof (zc.zc_value)); 3510168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3511185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3512168404Spjd 3513168404Spjd if (ret != 0) { 3514168404Spjd int save_errno = errno; 3515168404Spjd 3516168404Spjd switch (save_errno) { 3517168404Spjd case EEXIST: 3518219089Spjd /* There is a conflicting snapshot name. */ 3519168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3520219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3521219089Spjd zc.zc_string, parent); 3522168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3523168404Spjd 3524168404Spjd default: 3525168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3526168404Spjd } 3527168404Spjd } 3528168404Spjd return (ret); 3529168404Spjd} 3530168404Spjd 3531248571Smmtypedef struct snapdata { 3532248571Smm nvlist_t *sd_nvl; 3533248571Smm const char *sd_snapname; 3534248571Smm} snapdata_t; 3535248571Smm 3536248571Smmstatic int 3537248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3538248571Smm{ 3539248571Smm snapdata_t *sd = arg; 3540248571Smm char name[ZFS_MAXNAMELEN]; 3541248571Smm int rv = 0; 3542248571Smm 3543253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3544253819Sdelphij (void) snprintf(name, sizeof (name), 3545253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3546248571Smm 3547253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3548248571Smm 3549253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3550253819Sdelphij } 3551248571Smm zfs_close(zhp); 3552253819Sdelphij 3553248571Smm return (rv); 3554248571Smm} 3555248571Smm 3556168404Spjd/* 3557248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3558248571Smm * created. 3559168404Spjd */ 3560168404Spjdint 3561248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3562168404Spjd{ 3563168404Spjd int ret; 3564168404Spjd char errbuf[1024]; 3565248571Smm nvpair_t *elem; 3566248571Smm nvlist_t *errors; 3567168404Spjd 3568168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3569248571Smm "cannot create snapshots ")); 3570168404Spjd 3571248571Smm elem = NULL; 3572248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3573248571Smm const char *snapname = nvpair_name(elem); 3574168404Spjd 3575248571Smm /* validate the target name */ 3576248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3577248571Smm B_TRUE)) { 3578248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3579248571Smm dgettext(TEXT_DOMAIN, 3580248571Smm "cannot create snapshot '%s'"), snapname); 3581248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3582248571Smm } 3583248571Smm } 3584185029Spjd 3585248571Smm if (props != NULL && 3586248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3587248571Smm props, B_FALSE, NULL, errbuf)) == NULL) { 3588248571Smm return (-1); 3589248571Smm } 3590248571Smm 3591248571Smm ret = lzc_snapshot(snaps, props, &errors); 3592248571Smm 3593248571Smm if (ret != 0) { 3594248571Smm boolean_t printed = B_FALSE; 3595248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3596248571Smm elem != NULL; 3597248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3598248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3599248571Smm dgettext(TEXT_DOMAIN, 3600248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3601248571Smm (void) zfs_standard_error(hdl, 3602248571Smm fnvpair_value_int32(elem), errbuf); 3603248571Smm printed = B_TRUE; 3604185029Spjd } 3605248571Smm if (!printed) { 3606248571Smm switch (ret) { 3607248571Smm case EXDEV: 3608248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3609248571Smm "multiple snapshots of same " 3610248571Smm "fs not allowed")); 3611248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3612185029Spjd 3613248571Smm break; 3614248571Smm default: 3615248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3616248571Smm } 3617248571Smm } 3618185029Spjd } 3619185029Spjd 3620248571Smm nvlist_free(props); 3621248571Smm nvlist_free(errors); 3622248571Smm return (ret); 3623248571Smm} 3624168404Spjd 3625248571Smmint 3626248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3627248571Smm nvlist_t *props) 3628248571Smm{ 3629248571Smm int ret; 3630248571Smm snapdata_t sd = { 0 }; 3631248571Smm char fsname[ZFS_MAXNAMELEN]; 3632248571Smm char *cp; 3633248571Smm zfs_handle_t *zhp; 3634248571Smm char errbuf[1024]; 3635248571Smm 3636248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3637248571Smm "cannot snapshot %s"), path); 3638248571Smm 3639248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3640248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3641248571Smm 3642248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3643248571Smm cp = strchr(fsname, '@'); 3644248571Smm *cp = '\0'; 3645248571Smm sd.sd_snapname = cp + 1; 3646248571Smm 3647248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3648168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3649168404Spjd return (-1); 3650168404Spjd } 3651168404Spjd 3652248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3653248571Smm if (recursive) { 3654248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3655248571Smm } else { 3656248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3657168404Spjd } 3658168404Spjd 3659248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3660248571Smm nvlist_free(sd.sd_nvl); 3661168404Spjd zfs_close(zhp); 3662168404Spjd return (ret); 3663168404Spjd} 3664168404Spjd 3665168404Spjd/* 3666168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3667168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3668168404Spjd * is a dependent and we should just destroy it without checking the transaction 3669168404Spjd * group. 3670168404Spjd */ 3671168404Spjdtypedef struct rollback_data { 3672168404Spjd const char *cb_target; /* the snapshot */ 3673168404Spjd uint64_t cb_create; /* creation time reference */ 3674185029Spjd boolean_t cb_error; 3675185029Spjd boolean_t cb_force; 3676168404Spjd} rollback_data_t; 3677168404Spjd 3678168404Spjdstatic int 3679260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 3680168404Spjd{ 3681168404Spjd rollback_data_t *cbp = data; 3682260183Sdelphij prop_changelist_t *clp; 3683168404Spjd 3684260183Sdelphij /* We must destroy this clone; first unmount it */ 3685260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3686260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 3687260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 3688260183Sdelphij cbp->cb_error = B_TRUE; 3689260183Sdelphij zfs_close(zhp); 3690260183Sdelphij return (0); 3691260183Sdelphij } 3692260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 3693260183Sdelphij cbp->cb_error = B_TRUE; 3694260183Sdelphij else 3695260183Sdelphij changelist_remove(clp, zhp->zfs_name); 3696260183Sdelphij (void) changelist_postfix(clp); 3697260183Sdelphij changelist_free(clp); 3698168404Spjd 3699260183Sdelphij zfs_close(zhp); 3700260183Sdelphij return (0); 3701260183Sdelphij} 3702168404Spjd 3703260183Sdelphijstatic int 3704260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 3705260183Sdelphij{ 3706260183Sdelphij rollback_data_t *cbp = data; 3707185029Spjd 3708260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3709260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3710260183Sdelphij rollback_destroy_dependent, cbp); 3711260183Sdelphij 3712260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3713168404Spjd } 3714168404Spjd 3715168404Spjd zfs_close(zhp); 3716168404Spjd return (0); 3717168404Spjd} 3718168404Spjd 3719168404Spjd/* 3720168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3721168404Spjd * data changes since then and making it the active dataset. 3722168404Spjd * 3723260183Sdelphij * Any snapshots and bookmarks more recent than the target are 3724260183Sdelphij * destroyed, along with their dependents (i.e. clones). 3725168404Spjd */ 3726168404Spjdint 3727185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3728168404Spjd{ 3729168404Spjd rollback_data_t cb = { 0 }; 3730185029Spjd int err; 3731185029Spjd boolean_t restore_resv = 0; 3732185029Spjd uint64_t old_volsize, new_volsize; 3733185029Spjd zfs_prop_t resv_prop; 3734168404Spjd 3735185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3736185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3737168404Spjd 3738168404Spjd /* 3739239774Smm * Destroy all recent snapshots and their dependents. 3740168404Spjd */ 3741185029Spjd cb.cb_force = force; 3742168404Spjd cb.cb_target = snap->zfs_name; 3743168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3744260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 3745260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 3746168404Spjd 3747185029Spjd if (cb.cb_error) 3748185029Spjd return (-1); 3749168404Spjd 3750168404Spjd /* 3751168404Spjd * Now that we have verified that the snapshot is the latest, 3752168404Spjd * rollback to the given snapshot. 3753168404Spjd */ 3754168404Spjd 3755185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3756185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3757185029Spjd return (-1); 3758185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3759185029Spjd restore_resv = 3760185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3761168404Spjd } 3762168404Spjd 3763168404Spjd /* 3764185029Spjd * We rely on zfs_iter_children() to verify that there are no 3765185029Spjd * newer snapshots for the given dataset. Therefore, we can 3766185029Spjd * simply pass the name on to the ioctl() call. There is still 3767185029Spjd * an unlikely race condition where the user has taken a 3768185029Spjd * snapshot since we verified that this was the most recent. 3769168404Spjd */ 3770254587Sdelphij err = lzc_rollback(zhp->zfs_name, NULL, 0); 3771254587Sdelphij if (err != 0) { 3772185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3773185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3774185029Spjd zhp->zfs_name); 3775185029Spjd return (err); 3776185029Spjd } 3777168404Spjd 3778185029Spjd /* 3779185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3780185029Spjd * rollback reservation and the volsize has changed then set 3781185029Spjd * the reservation property to the post-rollback volsize. 3782185029Spjd * Make a new handle since the rollback closed the dataset. 3783185029Spjd */ 3784185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3785185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3786185029Spjd if (restore_resv) { 3787185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3788185029Spjd if (old_volsize != new_volsize) 3789185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3790185029Spjd new_volsize); 3791185029Spjd } 3792185029Spjd zfs_close(zhp); 3793185029Spjd } 3794185029Spjd return (err); 3795168404Spjd} 3796168404Spjd 3797168404Spjd/* 3798168404Spjd * Renames the given dataset. 3799168404Spjd */ 3800168404Spjdint 3801240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3802240870Spjd renameflags_t flags) 3803168404Spjd{ 3804168404Spjd int ret; 3805168404Spjd zfs_cmd_t zc = { 0 }; 3806168404Spjd char *delim; 3807168676Spjd prop_changelist_t *cl = NULL; 3808168676Spjd zfs_handle_t *zhrp = NULL; 3809168676Spjd char *parentname = NULL; 3810168404Spjd char parent[ZFS_MAXNAMELEN]; 3811226676Spjd char property[ZFS_MAXPROPLEN]; 3812168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3813168404Spjd char errbuf[1024]; 3814168404Spjd 3815168404Spjd /* if we have the same exact name, just return success */ 3816168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3817168404Spjd return (0); 3818168404Spjd 3819168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3820168404Spjd "cannot rename to '%s'"), target); 3821168404Spjd 3822240870Spjd if (source != NULL) { 3823240870Spjd /* 3824240870Spjd * This is recursive snapshots rename, put snapshot name 3825240870Spjd * (that might not exist) into zfs_name. 3826240870Spjd */ 3827240870Spjd assert(flags.recurse); 3828240870Spjd 3829240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3830240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3831240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3832240870Spjd } 3833240870Spjd 3834168404Spjd /* 3835168404Spjd * Make sure the target name is valid 3836168404Spjd */ 3837168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3838168404Spjd if ((strchr(target, '@') == NULL) || 3839168404Spjd *target == '@') { 3840168404Spjd /* 3841168404Spjd * Snapshot target name is abbreviated, 3842168404Spjd * reconstruct full dataset name 3843168404Spjd */ 3844168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3845168404Spjd sizeof (parent)); 3846168404Spjd delim = strchr(parent, '@'); 3847168404Spjd if (strchr(target, '@') == NULL) 3848168404Spjd *(++delim) = '\0'; 3849168404Spjd else 3850168404Spjd *delim = '\0'; 3851168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3852168404Spjd target = parent; 3853168404Spjd } else { 3854168404Spjd /* 3855168404Spjd * Make sure we're renaming within the same dataset. 3856168404Spjd */ 3857168404Spjd delim = strchr(target, '@'); 3858168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3859168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3860168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3861168404Spjd "snapshots must be part of same " 3862168404Spjd "dataset")); 3863168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3864168404Spjd errbuf)); 3865168404Spjd } 3866168404Spjd } 3867185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3868168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3869168404Spjd } else { 3870226705Spjd if (flags.recurse) { 3871168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3872168676Spjd "recursive rename must be a snapshot")); 3873168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3874168676Spjd } 3875168676Spjd 3876185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3877168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3878168404Spjd 3879168404Spjd /* validate parents */ 3880219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3881168404Spjd return (-1); 3882168404Spjd 3883168404Spjd /* make sure we're in the same pool */ 3884168404Spjd verify((delim = strchr(target, '/')) != NULL); 3885168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3886168404Spjd zhp->zfs_name[delim - target] != '/') { 3887168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3888168404Spjd "datasets must be within same pool")); 3889168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3890168404Spjd } 3891168404Spjd 3892168404Spjd /* new name cannot be a child of the current dataset name */ 3893219089Spjd if (is_descendant(zhp->zfs_name, target)) { 3894168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3895219089Spjd "New dataset name cannot be a descendant of " 3896168404Spjd "current dataset name")); 3897168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3898168404Spjd } 3899168404Spjd } 3900168404Spjd 3901168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 3902168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 3903168404Spjd 3904168404Spjd if (getzoneid() == GLOBAL_ZONEID && 3905168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 3906168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3907168404Spjd "dataset is used in a non-global zone")); 3908168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 3909168404Spjd } 3910168404Spjd 3911226705Spjd /* 3912226705Spjd * Avoid unmounting file systems with mountpoint property set to 3913226705Spjd * 'legacy' or 'none' even if -u option is not given. 3914226705Spjd */ 3915226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 3916226705Spjd !flags.recurse && !flags.nounmount && 3917226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 3918226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 3919226705Spjd (strcmp(property, "legacy") == 0 || 3920226705Spjd strcmp(property, "none") == 0)) { 3921226705Spjd flags.nounmount = B_TRUE; 3922226705Spjd } 3923226705Spjd if (flags.recurse) { 3924226705Spjd 3925185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 3926185029Spjd if (parentname == NULL) { 3927185029Spjd ret = -1; 3928185029Spjd goto error; 3929185029Spjd } 3930168676Spjd delim = strchr(parentname, '@'); 3931168676Spjd *delim = '\0'; 3932185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 3933168676Spjd if (zhrp == NULL) { 3934185029Spjd ret = -1; 3935185029Spjd goto error; 3936168676Spjd } 3937268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 3938226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 3939235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 3940235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 3941168676Spjd return (-1); 3942226676Spjd } 3943168676Spjd 3944168676Spjd if (changelist_haszonedchild(cl)) { 3945168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3946168676Spjd "child dataset with inherited mountpoint is used " 3947168676Spjd "in a non-global zone")); 3948168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 3949168676Spjd goto error; 3950168676Spjd } 3951168676Spjd 3952168676Spjd if ((ret = changelist_prefix(cl)) != 0) 3953168676Spjd goto error; 3954168404Spjd } 3955168404Spjd 3956168404Spjd if (ZFS_IS_VOLUME(zhp)) 3957168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3958168404Spjd else 3959168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3960168404Spjd 3961168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3962168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 3963168404Spjd 3964226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 3965226705Spjd if (flags.nounmount) 3966226676Spjd zc.zc_cookie |= 2; 3967168676Spjd 3968185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 3969168676Spjd /* 3970168676Spjd * if it was recursive, the one that actually failed will 3971168676Spjd * be in zc.zc_name 3972168676Spjd */ 3973168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3974185029Spjd "cannot rename '%s'"), zc.zc_name); 3975168404Spjd 3976226705Spjd if (flags.recurse && errno == EEXIST) { 3977168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3978168676Spjd "a child dataset already has a snapshot " 3979168676Spjd "with the new name")); 3980185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3981168676Spjd } else { 3982168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 3983168676Spjd } 3984168676Spjd 3985168404Spjd /* 3986168404Spjd * On failure, we still want to remount any filesystems that 3987168404Spjd * were previously mounted, so we don't alter the system state. 3988168404Spjd */ 3989268469Sdelphij if (cl != NULL) 3990168676Spjd (void) changelist_postfix(cl); 3991168404Spjd } else { 3992268469Sdelphij if (cl != NULL) { 3993168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 3994168676Spjd ret = changelist_postfix(cl); 3995168676Spjd } 3996168404Spjd } 3997168404Spjd 3998168404Spjderror: 3999268469Sdelphij if (parentname != NULL) { 4000168676Spjd free(parentname); 4001168676Spjd } 4002268469Sdelphij if (zhrp != NULL) { 4003168676Spjd zfs_close(zhrp); 4004168676Spjd } 4005268469Sdelphij if (cl != NULL) { 4006168676Spjd changelist_free(cl); 4007168676Spjd } 4008168404Spjd return (ret); 4009168404Spjd} 4010168404Spjd 4011219089Spjdnvlist_t * 4012219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4013168404Spjd{ 4014219089Spjd return (zhp->zfs_user_props); 4015168676Spjd} 4016168676Spjd 4017168404Spjdnvlist_t * 4018219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4019168404Spjd{ 4020219089Spjd if (zhp->zfs_recvd_props == NULL) 4021219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4022219089Spjd return (NULL); 4023219089Spjd return (zhp->zfs_recvd_props); 4024168404Spjd} 4025168404Spjd 4026168404Spjd/* 4027168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4028168404Spjd * display, and their maximum widths. This does two main things: 4029168404Spjd * 4030168404Spjd * - If this is a list of all properties, then expand the list to include 4031168404Spjd * all native properties, and set a flag so that for each dataset we look 4032168404Spjd * for new unique user properties and add them to the list. 4033168404Spjd * 4034168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4035219089Spjd * so that we can size the column appropriately. If the user has 4036219089Spjd * requested received property values, we also need to compute the width 4037219089Spjd * of the RECEIVED column. 4038168404Spjd */ 4039168404Spjdint 4040259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4041259850Sdelphij boolean_t literal) 4042168404Spjd{ 4043168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4044185029Spjd zprop_list_t *entry; 4045185029Spjd zprop_list_t **last, **start; 4046168404Spjd nvlist_t *userprops, *propval; 4047168404Spjd nvpair_t *elem; 4048168404Spjd char *strval; 4049168404Spjd char buf[ZFS_MAXPROPLEN]; 4050168404Spjd 4051185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4052168404Spjd return (-1); 4053168404Spjd 4054168404Spjd userprops = zfs_get_user_props(zhp); 4055168404Spjd 4056168404Spjd entry = *plp; 4057168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4058168404Spjd /* 4059168404Spjd * Go through and add any user properties as necessary. We 4060168404Spjd * start by incrementing our list pointer to the first 4061168404Spjd * non-native property. 4062168404Spjd */ 4063168404Spjd start = plp; 4064168404Spjd while (*start != NULL) { 4065185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4066168404Spjd break; 4067168404Spjd start = &(*start)->pl_next; 4068168404Spjd } 4069168404Spjd 4070168404Spjd elem = NULL; 4071168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4072168404Spjd /* 4073168404Spjd * See if we've already found this property in our list. 4074168404Spjd */ 4075168404Spjd for (last = start; *last != NULL; 4076168404Spjd last = &(*last)->pl_next) { 4077168404Spjd if (strcmp((*last)->pl_user_prop, 4078168404Spjd nvpair_name(elem)) == 0) 4079168404Spjd break; 4080168404Spjd } 4081168404Spjd 4082168404Spjd if (*last == NULL) { 4083168404Spjd if ((entry = zfs_alloc(hdl, 4084185029Spjd sizeof (zprop_list_t))) == NULL || 4085168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4086168404Spjd nvpair_name(elem)))) == NULL) { 4087168404Spjd free(entry); 4088168404Spjd return (-1); 4089168404Spjd } 4090168404Spjd 4091185029Spjd entry->pl_prop = ZPROP_INVAL; 4092168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4093168404Spjd entry->pl_all = B_TRUE; 4094168404Spjd *last = entry; 4095168404Spjd } 4096168404Spjd } 4097168404Spjd } 4098168404Spjd 4099168404Spjd /* 4100168404Spjd * Now go through and check the width of any non-fixed columns 4101168404Spjd */ 4102168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4103259850Sdelphij if (entry->pl_fixed && !literal) 4104168404Spjd continue; 4105168404Spjd 4106185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4107168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4108259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4109168404Spjd if (strlen(buf) > entry->pl_width) 4110168404Spjd entry->pl_width = strlen(buf); 4111168404Spjd } 4112219089Spjd if (received && zfs_prop_get_recvd(zhp, 4113219089Spjd zfs_prop_to_name(entry->pl_prop), 4114259850Sdelphij buf, sizeof (buf), literal) == 0) 4115219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4116219089Spjd entry->pl_recvd_width = strlen(buf); 4117219089Spjd } else { 4118219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4119219089Spjd &propval) == 0) { 4120219089Spjd verify(nvlist_lookup_string(propval, 4121219089Spjd ZPROP_VALUE, &strval) == 0); 4122219089Spjd if (strlen(strval) > entry->pl_width) 4123219089Spjd entry->pl_width = strlen(strval); 4124219089Spjd } 4125219089Spjd if (received && zfs_prop_get_recvd(zhp, 4126219089Spjd entry->pl_user_prop, 4127259850Sdelphij buf, sizeof (buf), literal) == 0) 4128219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4129219089Spjd entry->pl_recvd_width = strlen(buf); 4130168404Spjd } 4131168404Spjd } 4132168404Spjd 4133168404Spjd return (0); 4134168404Spjd} 4135168404Spjd 4136185029Spjdint 4137185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4138209962Smm char *resource, void *export, void *sharetab, 4139209962Smm int sharemax, zfs_share_op_t operation) 4140185029Spjd{ 4141185029Spjd zfs_cmd_t zc = { 0 }; 4142185029Spjd int error; 4143185029Spjd 4144185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4145185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4146209962Smm if (resource) 4147209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4148185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4149185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4150185029Spjd zc.zc_share.z_sharetype = operation; 4151185029Spjd zc.zc_share.z_sharemax = sharemax; 4152185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4153185029Spjd return (error); 4154185029Spjd} 4155185029Spjd 4156205198Sdelphijvoid 4157205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4158205198Sdelphij{ 4159205198Sdelphij nvpair_t *curr; 4160205198Sdelphij 4161205198Sdelphij /* 4162205198Sdelphij * Keep a reference to the props-table against which we prune the 4163205198Sdelphij * properties. 4164205198Sdelphij */ 4165205198Sdelphij zhp->zfs_props_table = props; 4166205198Sdelphij 4167205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4168205198Sdelphij 4169205198Sdelphij while (curr) { 4170205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4171205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4172205198Sdelphij 4173206199Sdelphij /* 4174219089Spjd * User properties will result in ZPROP_INVAL, and since we 4175219089Spjd * only know how to prune standard ZFS properties, we always 4176219089Spjd * leave these in the list. This can also happen if we 4177219089Spjd * encounter an unknown DSL property (when running older 4178219089Spjd * software, for example). 4179206199Sdelphij */ 4180206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4181205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4182205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4183205198Sdelphij curr = next; 4184205198Sdelphij } 4185205198Sdelphij} 4186205198Sdelphij 4187277300Ssmh#ifdef illumos 4188209962Smmstatic int 4189209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4190209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4191209962Smm{ 4192209962Smm zfs_cmd_t zc = { 0 }; 4193209962Smm nvlist_t *nvlist = NULL; 4194209962Smm int error; 4195209962Smm 4196209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4197209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4198209962Smm zc.zc_cookie = (uint64_t)cmd; 4199209962Smm 4200209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4201209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4202209962Smm (void) no_memory(hdl); 4203209962Smm return (NULL); 4204209962Smm } 4205209962Smm } 4206209962Smm 4207209962Smm switch (cmd) { 4208209962Smm case ZFS_SMB_ACL_ADD: 4209209962Smm case ZFS_SMB_ACL_REMOVE: 4210209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4211209962Smm break; 4212209962Smm case ZFS_SMB_ACL_RENAME: 4213209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4214209962Smm resource1) != 0) { 4215209962Smm (void) no_memory(hdl); 4216209962Smm return (-1); 4217209962Smm } 4218209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4219209962Smm resource2) != 0) { 4220209962Smm (void) no_memory(hdl); 4221209962Smm return (-1); 4222209962Smm } 4223209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4224209962Smm nvlist_free(nvlist); 4225209962Smm return (-1); 4226209962Smm } 4227209962Smm break; 4228209962Smm case ZFS_SMB_ACL_PURGE: 4229209962Smm break; 4230209962Smm default: 4231209962Smm return (-1); 4232209962Smm } 4233209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4234209962Smm if (nvlist) 4235209962Smm nvlist_free(nvlist); 4236209962Smm return (error); 4237209962Smm} 4238209962Smm 4239209962Smmint 4240209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4241209962Smm char *path, char *resource) 4242209962Smm{ 4243209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4244209962Smm resource, NULL)); 4245209962Smm} 4246209962Smm 4247209962Smmint 4248209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4249209962Smm char *path, char *resource) 4250209962Smm{ 4251209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4252209962Smm resource, NULL)); 4253209962Smm} 4254209962Smm 4255209962Smmint 4256209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4257209962Smm{ 4258209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4259209962Smm NULL, NULL)); 4260209962Smm} 4261209962Smm 4262209962Smmint 4263209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4264209962Smm char *oldname, char *newname) 4265209962Smm{ 4266209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4267209962Smm oldname, newname)); 4268209962Smm} 4269277300Ssmh#endif /* illumos */ 4270209962Smm 4271209962Smmint 4272209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4273209962Smm zfs_userspace_cb_t func, void *arg) 4274209962Smm{ 4275209962Smm zfs_cmd_t zc = { 0 }; 4276209962Smm zfs_useracct_t buf[100]; 4277240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4278240415Smm int ret; 4279209962Smm 4280228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4281209962Smm 4282209962Smm zc.zc_objset_type = type; 4283209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4284209962Smm 4285240415Smm for (;;) { 4286209962Smm zfs_useracct_t *zua = buf; 4287209962Smm 4288209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4289240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4290248571Smm char errbuf[1024]; 4291240415Smm 4292240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4293240415Smm dgettext(TEXT_DOMAIN, 4294240415Smm "cannot get used/quota for %s"), zc.zc_name); 4295240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4296240415Smm } 4297240415Smm if (zc.zc_nvlist_dst_size == 0) 4298209962Smm break; 4299209962Smm 4300209962Smm while (zc.zc_nvlist_dst_size > 0) { 4301240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4302240415Smm zua->zu_space)) != 0) 4303240415Smm return (ret); 4304209962Smm zua++; 4305209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4306209962Smm } 4307209962Smm } 4308209962Smm 4309240415Smm return (0); 4310209962Smm} 4311209962Smm 4312248571Smmstruct holdarg { 4313248571Smm nvlist_t *nvl; 4314248571Smm const char *snapname; 4315248571Smm const char *tag; 4316248571Smm boolean_t recursive; 4317252219Sdelphij int error; 4318248571Smm}; 4319248571Smm 4320248571Smmstatic int 4321248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4322248571Smm{ 4323248571Smm struct holdarg *ha = arg; 4324248571Smm char name[ZFS_MAXNAMELEN]; 4325248571Smm int rv = 0; 4326248571Smm 4327248571Smm (void) snprintf(name, sizeof (name), 4328248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4329248571Smm 4330251646Sdelphij if (lzc_exists(name)) 4331248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4332248571Smm 4333248571Smm if (ha->recursive) 4334248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4335248571Smm zfs_close(zhp); 4336248571Smm return (rv); 4337248571Smm} 4338248571Smm 4339219089Spjdint 4340219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4341251646Sdelphij boolean_t recursive, int cleanup_fd) 4342219089Spjd{ 4343248571Smm int ret; 4344248571Smm struct holdarg ha; 4345219089Spjd 4346248571Smm ha.nvl = fnvlist_alloc(); 4347248571Smm ha.snapname = snapname; 4348248571Smm ha.tag = tag; 4349248571Smm ha.recursive = recursive; 4350248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4351249357Smm 4352251646Sdelphij if (nvlist_empty(ha.nvl)) { 4353251646Sdelphij char errbuf[1024]; 4354251646Sdelphij 4355249357Smm fnvlist_free(ha.nvl); 4356249357Smm ret = ENOENT; 4357251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4358251646Sdelphij dgettext(TEXT_DOMAIN, 4359251646Sdelphij "cannot hold snapshot '%s@%s'"), 4360251646Sdelphij zhp->zfs_name, snapname); 4361251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4362249357Smm return (ret); 4363249357Smm } 4364249357Smm 4365251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4366248571Smm fnvlist_free(ha.nvl); 4367219089Spjd 4368251646Sdelphij return (ret); 4369251646Sdelphij} 4370251646Sdelphij 4371251646Sdelphijint 4372251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4373251646Sdelphij{ 4374251646Sdelphij int ret; 4375251646Sdelphij nvlist_t *errors; 4376251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4377251646Sdelphij char errbuf[1024]; 4378251646Sdelphij nvpair_t *elem; 4379251646Sdelphij 4380251646Sdelphij errors = NULL; 4381251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4382251646Sdelphij 4383251646Sdelphij if (ret == 0) { 4384251646Sdelphij /* There may be errors even in the success case. */ 4385251646Sdelphij fnvlist_free(errors); 4386248571Smm return (0); 4387251646Sdelphij } 4388219089Spjd 4389251646Sdelphij if (nvlist_empty(errors)) { 4390248571Smm /* no hold-specific errors */ 4391248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4392248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4393248571Smm switch (ret) { 4394248571Smm case ENOTSUP: 4395248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4396248571Smm "pool must be upgraded")); 4397248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4398248571Smm break; 4399248571Smm case EINVAL: 4400248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4401248571Smm break; 4402248571Smm default: 4403248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4404248571Smm } 4405248571Smm } 4406219089Spjd 4407248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4408248571Smm elem != NULL; 4409248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4410248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4411248571Smm dgettext(TEXT_DOMAIN, 4412248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4413248571Smm switch (fnvpair_value_int32(elem)) { 4414219089Spjd case E2BIG: 4415219089Spjd /* 4416219089Spjd * Temporary tags wind up having the ds object id 4417219089Spjd * prepended. So even if we passed the length check 4418219089Spjd * above, it's still possible for the tag to wind 4419219089Spjd * up being slightly too long. 4420219089Spjd */ 4421248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4422248571Smm break; 4423219089Spjd case EINVAL: 4424248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4425248571Smm break; 4426219089Spjd case EEXIST: 4427248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4428248571Smm break; 4429219089Spjd default: 4430248571Smm (void) zfs_standard_error(hdl, 4431248571Smm fnvpair_value_int32(elem), errbuf); 4432219089Spjd } 4433219089Spjd } 4434219089Spjd 4435248571Smm fnvlist_free(errors); 4436248571Smm return (ret); 4437219089Spjd} 4438219089Spjd 4439248571Smmstatic int 4440248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4441248571Smm{ 4442248571Smm struct holdarg *ha = arg; 4443248571Smm char name[ZFS_MAXNAMELEN]; 4444248571Smm int rv = 0; 4445252219Sdelphij nvlist_t *existing_holds; 4446248571Smm 4447248571Smm (void) snprintf(name, sizeof (name), 4448248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4449248571Smm 4450252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4451252219Sdelphij ha->error = ENOENT; 4452252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4453252219Sdelphij ha->error = ESRCH; 4454252219Sdelphij } else { 4455252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4456252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4457252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4458252219Sdelphij fnvlist_free(torelease); 4459248571Smm } 4460248571Smm 4461248571Smm if (ha->recursive) 4462248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4463248571Smm zfs_close(zhp); 4464248571Smm return (rv); 4465248571Smm} 4466248571Smm 4467219089Spjdint 4468219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4469219089Spjd boolean_t recursive) 4470219089Spjd{ 4471248571Smm int ret; 4472248571Smm struct holdarg ha; 4473251646Sdelphij nvlist_t *errors = NULL; 4474248571Smm nvpair_t *elem; 4475219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4476249357Smm char errbuf[1024]; 4477219089Spjd 4478248571Smm ha.nvl = fnvlist_alloc(); 4479248571Smm ha.snapname = snapname; 4480248571Smm ha.tag = tag; 4481248571Smm ha.recursive = recursive; 4482252219Sdelphij ha.error = 0; 4483248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4484249357Smm 4485251646Sdelphij if (nvlist_empty(ha.nvl)) { 4486249357Smm fnvlist_free(ha.nvl); 4487252219Sdelphij ret = ha.error; 4488249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4489249357Smm dgettext(TEXT_DOMAIN, 4490249357Smm "cannot release hold from snapshot '%s@%s'"), 4491249357Smm zhp->zfs_name, snapname); 4492252219Sdelphij if (ret == ESRCH) { 4493252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4494252219Sdelphij } else { 4495252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4496252219Sdelphij } 4497249357Smm return (ret); 4498249357Smm } 4499249357Smm 4500248571Smm ret = lzc_release(ha.nvl, &errors); 4501248571Smm fnvlist_free(ha.nvl); 4502219089Spjd 4503251646Sdelphij if (ret == 0) { 4504251646Sdelphij /* There may be errors even in the success case. */ 4505251646Sdelphij fnvlist_free(errors); 4506248571Smm return (0); 4507251646Sdelphij } 4508219089Spjd 4509251646Sdelphij if (nvlist_empty(errors)) { 4510248571Smm /* no hold-specific errors */ 4511219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4512248571Smm "cannot release")); 4513219089Spjd switch (errno) { 4514219089Spjd case ENOTSUP: 4515219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4516219089Spjd "pool must be upgraded")); 4517248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4518248571Smm break; 4519248571Smm default: 4520248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4521248571Smm } 4522248571Smm } 4523248571Smm 4524248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4525248571Smm elem != NULL; 4526248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4527248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4528248571Smm dgettext(TEXT_DOMAIN, 4529248571Smm "cannot release hold from snapshot '%s'"), 4530248571Smm nvpair_name(elem)); 4531248571Smm switch (fnvpair_value_int32(elem)) { 4532248571Smm case ESRCH: 4533248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4534248571Smm break; 4535219089Spjd case EINVAL: 4536248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4537248571Smm break; 4538219089Spjd default: 4539248571Smm (void) zfs_standard_error_fmt(hdl, 4540248571Smm fnvpair_value_int32(elem), errbuf); 4541219089Spjd } 4542219089Spjd } 4543219089Spjd 4544248571Smm fnvlist_free(errors); 4545248571Smm return (ret); 4546219089Spjd} 4547219089Spjd 4548219089Spjdint 4549219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4550219089Spjd{ 4551219089Spjd zfs_cmd_t zc = { 0 }; 4552219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4553219089Spjd int nvsz = 2048; 4554219089Spjd void *nvbuf; 4555219089Spjd int err = 0; 4556248571Smm char errbuf[1024]; 4557219089Spjd 4558219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4559219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4560219089Spjd 4561219089Spjdtryagain: 4562219089Spjd 4563219089Spjd nvbuf = malloc(nvsz); 4564219089Spjd if (nvbuf == NULL) { 4565219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4566219089Spjd goto out; 4567219089Spjd } 4568219089Spjd 4569219089Spjd zc.zc_nvlist_dst_size = nvsz; 4570219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4571219089Spjd 4572219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4573219089Spjd 4574230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4575219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4576219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4577219089Spjd zc.zc_name); 4578219089Spjd switch (errno) { 4579219089Spjd case ENOMEM: 4580219089Spjd free(nvbuf); 4581219089Spjd nvsz = zc.zc_nvlist_dst_size; 4582219089Spjd goto tryagain; 4583219089Spjd 4584219089Spjd case ENOTSUP: 4585219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4586219089Spjd "pool must be upgraded")); 4587219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4588219089Spjd break; 4589219089Spjd case EINVAL: 4590219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4591219089Spjd break; 4592219089Spjd case ENOENT: 4593219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4594219089Spjd break; 4595219089Spjd default: 4596219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4597219089Spjd break; 4598219089Spjd } 4599219089Spjd } else { 4600219089Spjd /* success */ 4601219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4602219089Spjd if (rc) { 4603219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4604219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4605219089Spjd zc.zc_name); 4606219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4607219089Spjd } 4608219089Spjd } 4609219089Spjd 4610219089Spjd free(nvbuf); 4611219089Spjdout: 4612219089Spjd return (err); 4613219089Spjd} 4614219089Spjd 4615219089Spjdint 4616219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4617219089Spjd{ 4618219089Spjd zfs_cmd_t zc = { 0 }; 4619219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4620219089Spjd char *nvbuf; 4621248571Smm char errbuf[1024]; 4622219089Spjd size_t nvsz; 4623219089Spjd int err; 4624219089Spjd 4625219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4626219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4627219089Spjd 4628219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4629219089Spjd assert(err == 0); 4630219089Spjd 4631219089Spjd nvbuf = malloc(nvsz); 4632219089Spjd 4633219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4634219089Spjd assert(err == 0); 4635219089Spjd 4636219089Spjd zc.zc_nvlist_src_size = nvsz; 4637219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4638219089Spjd zc.zc_perm_action = un; 4639219089Spjd 4640219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4641219089Spjd 4642219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4643219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4644219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4645219089Spjd zc.zc_name); 4646219089Spjd switch (errno) { 4647219089Spjd case ENOTSUP: 4648219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4649219089Spjd "pool must be upgraded")); 4650219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4651219089Spjd break; 4652219089Spjd case EINVAL: 4653219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4654219089Spjd break; 4655219089Spjd case ENOENT: 4656219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4657219089Spjd break; 4658219089Spjd default: 4659219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4660219089Spjd break; 4661219089Spjd } 4662219089Spjd } 4663219089Spjd 4664219089Spjd free(nvbuf); 4665219089Spjd 4666219089Spjd return (err); 4667219089Spjd} 4668219089Spjd 4669219089Spjdint 4670219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4671219089Spjd{ 4672248571Smm int err; 4673248571Smm char errbuf[1024]; 4674219089Spjd 4675248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4676219089Spjd 4677248571Smm if (err != 0) { 4678248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4679219089Spjd 4680219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4681219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4682248571Smm zhp->zfs_name); 4683248571Smm switch (err) { 4684219089Spjd case ENOTSUP: 4685219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4686219089Spjd "pool must be upgraded")); 4687219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4688219089Spjd break; 4689219089Spjd case EINVAL: 4690219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4691219089Spjd break; 4692219089Spjd case ENOENT: 4693219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4694219089Spjd break; 4695219089Spjd default: 4696219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4697219089Spjd break; 4698219089Spjd } 4699219089Spjd } 4700219089Spjd 4701219089Spjd return (err); 4702219089Spjd} 4703219089Spjd 4704251629Sdelphij/* 4705251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4706251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4707251629Sdelphij * suite's shell version in reservation.kshlib. 4708251629Sdelphij */ 4709219089Spjduint64_t 4710219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4711219089Spjd{ 4712219089Spjd uint64_t numdb; 4713219089Spjd uint64_t nblocks, volblocksize; 4714219089Spjd int ncopies; 4715219089Spjd char *strval; 4716219089Spjd 4717219089Spjd if (nvlist_lookup_string(props, 4718219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4719219089Spjd ncopies = atoi(strval); 4720219089Spjd else 4721219089Spjd ncopies = 1; 4722219089Spjd if (nvlist_lookup_uint64(props, 4723219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4724219089Spjd &volblocksize) != 0) 4725219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4726219089Spjd nblocks = volsize/volblocksize; 4727219089Spjd /* start with metadnode L0-L6 */ 4728219089Spjd numdb = 7; 4729219089Spjd /* calculate number of indirects */ 4730219089Spjd while (nblocks > 1) { 4731219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4732219089Spjd nblocks /= DNODES_PER_LEVEL; 4733219089Spjd numdb += nblocks; 4734219089Spjd } 4735219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4736219089Spjd volsize *= ncopies; 4737219089Spjd /* 4738219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4739219089Spjd * compressed, but in practice they compress down to about 4740219089Spjd * 1100 bytes 4741219089Spjd */ 4742219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4743219089Spjd volsize += numdb; 4744219089Spjd return (volsize); 4745219089Spjd} 4746219089Spjd 4747168404Spjd/* 4748168404Spjd * Attach/detach the given filesystem to/from the given jail. 4749168404Spjd */ 4750168404Spjdint 4751168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4752168404Spjd{ 4753168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4754168404Spjd zfs_cmd_t zc = { 0 }; 4755168404Spjd char errbuf[1024]; 4756224525Smm unsigned long cmd; 4757224525Smm int ret; 4758168404Spjd 4759168404Spjd if (attach) { 4760168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4761168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4762168404Spjd } else { 4763168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4764249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4765168404Spjd } 4766168404Spjd 4767168404Spjd switch (zhp->zfs_type) { 4768168404Spjd case ZFS_TYPE_VOLUME: 4769168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4770168404Spjd "volumes can not be jailed")); 4771168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4772168404Spjd case ZFS_TYPE_SNAPSHOT: 4773168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4774168404Spjd "snapshots can not be jailed")); 4775168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4776168404Spjd } 4777168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4778168404Spjd 4779168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4780168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4781168404Spjd zc.zc_jailid = jailid; 4782168404Spjd 4783168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4784168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4785168404Spjd zfs_standard_error(hdl, errno, errbuf); 4786168404Spjd 4787168404Spjd return (ret); 4788168404Spjd} 4789