libzfs_dataset.c revision 240870
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. 24240415Smm * Copyright 2012 Nexenta Systems, Inc. All rights reserved. 25223623Smm * Copyright (c) 2011 by Delphix. All rights reserved. 26236705Smm * 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. 30168404Spjd */ 31168404Spjd 32168404Spjd#include <ctype.h> 33168404Spjd#include <errno.h> 34168404Spjd#include <libintl.h> 35168404Spjd#include <math.h> 36168404Spjd#include <stdio.h> 37168404Spjd#include <stdlib.h> 38168404Spjd#include <strings.h> 39168404Spjd#include <unistd.h> 40185029Spjd#include <stddef.h> 41168404Spjd#include <zone.h> 42168404Spjd#include <fcntl.h> 43168404Spjd#include <sys/mntent.h> 44168404Spjd#include <sys/mount.h> 45185029Spjd#include <priv.h> 46185029Spjd#include <pwd.h> 47185029Spjd#include <grp.h> 48185029Spjd#include <stddef.h> 49209962Smm#include <idmap.h> 50168404Spjd 51219089Spjd#include <sys/dnode.h> 52168404Spjd#include <sys/spa.h> 53168404Spjd#include <sys/zap.h> 54209962Smm#include <sys/misc.h> 55168404Spjd#include <libzfs.h> 56168404Spjd 57168404Spjd#include "zfs_namecheck.h" 58168404Spjd#include "zfs_prop.h" 59168404Spjd#include "libzfs_impl.h" 60185029Spjd#include "zfs_deleg.h" 61168404Spjd 62209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 63209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 64168676Spjd 65168404Spjd/* 66168404Spjd * Given a single type (not a mask of types), return the type in a human 67168404Spjd * readable form. 68168404Spjd */ 69168404Spjdconst char * 70168404Spjdzfs_type_to_name(zfs_type_t type) 71168404Spjd{ 72168404Spjd switch (type) { 73168404Spjd case ZFS_TYPE_FILESYSTEM: 74168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 75168404Spjd case ZFS_TYPE_SNAPSHOT: 76168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 77168404Spjd case ZFS_TYPE_VOLUME: 78168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 79168404Spjd } 80168404Spjd 81168404Spjd return (NULL); 82168404Spjd} 83168404Spjd 84168404Spjd/* 85168404Spjd * Given a path and mask of ZFS types, return a string describing this dataset. 86168404Spjd * This is used when we fail to open a dataset and we cannot get an exact type. 87168404Spjd * We guess what the type would have been based on the path and the mask of 88168404Spjd * acceptable types. 89168404Spjd */ 90168404Spjdstatic const char * 91168404Spjdpath_to_str(const char *path, int types) 92168404Spjd{ 93168404Spjd /* 94168404Spjd * When given a single type, always report the exact type. 95168404Spjd */ 96168404Spjd if (types == ZFS_TYPE_SNAPSHOT) 97168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 98168404Spjd if (types == ZFS_TYPE_FILESYSTEM) 99168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 100168404Spjd if (types == ZFS_TYPE_VOLUME) 101168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 102168404Spjd 103168404Spjd /* 104168404Spjd * The user is requesting more than one type of dataset. If this is the 105168404Spjd * case, consult the path itself. If we're looking for a snapshot, and 106168404Spjd * a '@' is found, then report it as "snapshot". Otherwise, remove the 107168404Spjd * snapshot attribute and try again. 108168404Spjd */ 109168404Spjd if (types & ZFS_TYPE_SNAPSHOT) { 110168404Spjd if (strchr(path, '@') != NULL) 111168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 112168404Spjd return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); 113168404Spjd } 114168404Spjd 115168404Spjd /* 116168404Spjd * The user has requested either filesystems or volumes. 117168404Spjd * We have no way of knowing a priori what type this would be, so always 118168404Spjd * report it as "filesystem" or "volume", our two primitive types. 119168404Spjd */ 120168404Spjd if (types & ZFS_TYPE_FILESYSTEM) 121168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 122168404Spjd 123168404Spjd assert(types & ZFS_TYPE_VOLUME); 124168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 125168404Spjd} 126168404Spjd 127168404Spjd/* 128168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 129209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 130209962Smm * explain exactly why the name was not valid. 131168404Spjd */ 132219089Spjdint 133185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 134185029Spjd boolean_t modifying) 135168404Spjd{ 136168404Spjd namecheck_err_t why; 137168404Spjd char what; 138168404Spjd 139219089Spjd (void) zfs_prop_get_table(); 140168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 141168404Spjd if (hdl != NULL) { 142168404Spjd switch (why) { 143168404Spjd case NAME_ERR_TOOLONG: 144168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 145168404Spjd "name is too long")); 146168404Spjd break; 147168404Spjd 148168404Spjd case NAME_ERR_LEADING_SLASH: 149168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 150168404Spjd "leading slash in name")); 151168404Spjd break; 152168404Spjd 153168404Spjd case NAME_ERR_EMPTY_COMPONENT: 154168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 155168404Spjd "empty component in name")); 156168404Spjd break; 157168404Spjd 158168404Spjd case NAME_ERR_TRAILING_SLASH: 159168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 160168404Spjd "trailing slash in name")); 161168404Spjd break; 162168404Spjd 163168404Spjd case NAME_ERR_INVALCHAR: 164168404Spjd zfs_error_aux(hdl, 165168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 166168404Spjd "'%c' in name"), what); 167168404Spjd break; 168168404Spjd 169168404Spjd case NAME_ERR_MULTIPLE_AT: 170168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 171168404Spjd "multiple '@' delimiters in name")); 172168404Spjd break; 173168404Spjd 174168404Spjd case NAME_ERR_NOLETTER: 175168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 176168404Spjd "pool doesn't begin with a letter")); 177168404Spjd break; 178168404Spjd 179168404Spjd case NAME_ERR_RESERVED: 180168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 181168404Spjd "name is reserved")); 182168404Spjd break; 183168404Spjd 184168404Spjd case NAME_ERR_DISKLIKE: 185168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 186168404Spjd "reserved disk name")); 187168404Spjd break; 188168404Spjd } 189168404Spjd } 190168404Spjd 191168404Spjd return (0); 192168404Spjd } 193168404Spjd 194168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 195168404Spjd if (hdl != NULL) 196168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 197168404Spjd "snapshot delimiter '@' in filesystem name")); 198168404Spjd return (0); 199168404Spjd } 200168404Spjd 201168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 202168404Spjd if (hdl != NULL) 203168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 204168404Spjd "missing '@' delimiter in snapshot name")); 205168404Spjd return (0); 206168404Spjd } 207168404Spjd 208185029Spjd if (modifying && strchr(path, '%') != NULL) { 209185029Spjd if (hdl != NULL) 210185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 211185029Spjd "invalid character %c in name"), '%'); 212185029Spjd return (0); 213185029Spjd } 214185029Spjd 215168404Spjd return (-1); 216168404Spjd} 217168404Spjd 218168404Spjdint 219168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 220168404Spjd{ 221185029Spjd if (type == ZFS_TYPE_POOL) 222185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 223185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 224168404Spjd} 225168404Spjd 226168404Spjd/* 227168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 228168404Spjd * properties into a separate nvlist. 229168404Spjd */ 230185029Spjdstatic nvlist_t * 231185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 232168404Spjd{ 233168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 234168404Spjd nvpair_t *elem; 235168404Spjd nvlist_t *propval; 236185029Spjd nvlist_t *nvl; 237168404Spjd 238185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 239185029Spjd (void) no_memory(hdl); 240185029Spjd return (NULL); 241185029Spjd } 242168404Spjd 243168404Spjd elem = NULL; 244185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 245168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 246168404Spjd continue; 247168404Spjd 248168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 249185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 250185029Spjd nvlist_free(nvl); 251185029Spjd (void) no_memory(hdl); 252185029Spjd return (NULL); 253185029Spjd } 254168404Spjd } 255168404Spjd 256185029Spjd return (nvl); 257168404Spjd} 258168404Spjd 259185029Spjdstatic zpool_handle_t * 260185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 261185029Spjd{ 262185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 263185029Spjd zpool_handle_t *zph; 264185029Spjd 265185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 266185029Spjd if (hdl->libzfs_pool_handles != NULL) 267185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 268185029Spjd hdl->libzfs_pool_handles = zph; 269185029Spjd } 270185029Spjd return (zph); 271185029Spjd} 272185029Spjd 273185029Spjdstatic zpool_handle_t * 274185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 275185029Spjd{ 276185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 277185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 278185029Spjd 279185029Spjd while ((zph != NULL) && 280185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 281185029Spjd zph = zph->zpool_next; 282185029Spjd return (zph); 283185029Spjd} 284185029Spjd 285168404Spjd/* 286185029Spjd * Returns a handle to the pool that contains the provided dataset. 287185029Spjd * If a handle to that pool already exists then that handle is returned. 288185029Spjd * Otherwise, a new handle is created and added to the list of handles. 289185029Spjd */ 290185029Spjdstatic zpool_handle_t * 291185029Spjdzpool_handle(zfs_handle_t *zhp) 292185029Spjd{ 293185029Spjd char *pool_name; 294185029Spjd int len; 295185029Spjd zpool_handle_t *zph; 296185029Spjd 297185029Spjd len = strcspn(zhp->zfs_name, "/@") + 1; 298185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 299185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 300185029Spjd 301185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 302185029Spjd if (zph == NULL) 303185029Spjd zph = zpool_add_handle(zhp, pool_name); 304185029Spjd 305185029Spjd free(pool_name); 306185029Spjd return (zph); 307185029Spjd} 308185029Spjd 309185029Spjdvoid 310185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 311185029Spjd{ 312185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 313185029Spjd 314185029Spjd while (zph != NULL) { 315185029Spjd next = zph->zpool_next; 316185029Spjd zpool_close(zph); 317185029Spjd zph = next; 318185029Spjd } 319185029Spjd hdl->libzfs_pool_handles = NULL; 320185029Spjd} 321185029Spjd 322185029Spjd/* 323168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 324168404Spjd */ 325219089Spjdstatic int 326209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 327168404Spjd{ 328168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 329168404Spjd 330209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 331168404Spjd 332209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 333168404Spjd if (errno == ENOMEM) { 334209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 335168404Spjd return (-1); 336168404Spjd } 337168404Spjd } else { 338168404Spjd return (-1); 339168404Spjd } 340168404Spjd } 341209962Smm return (0); 342209962Smm} 343168404Spjd 344219089Spjd/* 345219089Spjd * Utility function to get the received properties of the given object. 346219089Spjd */ 347209962Smmstatic int 348219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 349219089Spjd{ 350219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 351219089Spjd nvlist_t *recvdprops; 352219089Spjd zfs_cmd_t zc = { 0 }; 353219089Spjd int err; 354219089Spjd 355219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 356219089Spjd return (-1); 357219089Spjd 358219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 359219089Spjd 360219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 361219089Spjd if (errno == ENOMEM) { 362219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 363219089Spjd return (-1); 364219089Spjd } 365219089Spjd } else { 366219089Spjd zcmd_free_nvlists(&zc); 367219089Spjd return (-1); 368219089Spjd } 369219089Spjd } 370219089Spjd 371219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 372219089Spjd zcmd_free_nvlists(&zc); 373219089Spjd if (err != 0) 374219089Spjd return (-1); 375219089Spjd 376219089Spjd nvlist_free(zhp->zfs_recvd_props); 377219089Spjd zhp->zfs_recvd_props = recvdprops; 378219089Spjd 379219089Spjd return (0); 380219089Spjd} 381219089Spjd 382219089Spjdstatic int 383209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 384209962Smm{ 385209962Smm nvlist_t *allprops, *userprops; 386168404Spjd 387209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 388209962Smm 389209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 390168404Spjd return (-1); 391168404Spjd } 392168404Spjd 393209962Smm /* 394209962Smm * XXX Why do we store the user props separately, in addition to 395209962Smm * storing them in zfs_props? 396209962Smm */ 397185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 398185029Spjd nvlist_free(allprops); 399168404Spjd return (-1); 400185029Spjd } 401168404Spjd 402185029Spjd nvlist_free(zhp->zfs_props); 403185029Spjd nvlist_free(zhp->zfs_user_props); 404185029Spjd 405185029Spjd zhp->zfs_props = allprops; 406185029Spjd zhp->zfs_user_props = userprops; 407185029Spjd 408168404Spjd return (0); 409168404Spjd} 410168404Spjd 411209962Smmstatic int 412209962Smmget_stats(zfs_handle_t *zhp) 413209962Smm{ 414209962Smm int rc = 0; 415209962Smm zfs_cmd_t zc = { 0 }; 416209962Smm 417209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 418209962Smm return (-1); 419209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 420209962Smm rc = -1; 421209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 422209962Smm rc = -1; 423209962Smm zcmd_free_nvlists(&zc); 424209962Smm return (rc); 425209962Smm} 426209962Smm 427168404Spjd/* 428168404Spjd * Refresh the properties currently stored in the handle. 429168404Spjd */ 430168404Spjdvoid 431168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 432168404Spjd{ 433168404Spjd (void) get_stats(zhp); 434168404Spjd} 435168404Spjd 436168404Spjd/* 437168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 438168404Spjd * zfs_iter_* to create child handles on the fly. 439168404Spjd */ 440209962Smmstatic int 441209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 442168404Spjd{ 443219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 444209962Smm return (-1); 445168404Spjd 446168404Spjd /* 447168404Spjd * We've managed to open the dataset and gather statistics. Determine 448168404Spjd * the high-level type. 449168404Spjd */ 450168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 451168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 452168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 453168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 454168404Spjd else 455168404Spjd abort(); 456168404Spjd 457168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 458168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 459168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 460168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 461168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 462168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 463168404Spjd else 464168404Spjd abort(); /* we should never see any other types */ 465168404Spjd 466219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 467219089Spjd return (-1); 468219089Spjd 469209962Smm return (0); 470209962Smm} 471209962Smm 472209962Smmzfs_handle_t * 473209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 474209962Smm{ 475209962Smm zfs_cmd_t zc = { 0 }; 476209962Smm 477209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 478209962Smm 479209962Smm if (zhp == NULL) 480209962Smm return (NULL); 481209962Smm 482209962Smm zhp->zfs_hdl = hdl; 483209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 484209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 485209962Smm free(zhp); 486209962Smm return (NULL); 487209962Smm } 488209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 489209962Smm zcmd_free_nvlists(&zc); 490209962Smm free(zhp); 491209962Smm return (NULL); 492209962Smm } 493209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 494209962Smm free(zhp); 495209962Smm zhp = NULL; 496209962Smm } 497209962Smm zcmd_free_nvlists(&zc); 498168404Spjd return (zhp); 499168404Spjd} 500168404Spjd 501228103Smmzfs_handle_t * 502209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 503209962Smm{ 504209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 505209962Smm 506209962Smm if (zhp == NULL) 507209962Smm return (NULL); 508209962Smm 509209962Smm zhp->zfs_hdl = hdl; 510209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 511209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 512209962Smm free(zhp); 513209962Smm return (NULL); 514209962Smm } 515209962Smm return (zhp); 516209962Smm} 517209962Smm 518228103Smmzfs_handle_t * 519230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 520230438Spjd{ 521230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 522230438Spjd 523230438Spjd if (zhp == NULL) 524230438Spjd return (NULL); 525230438Spjd 526230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 527230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 528230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 529230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 530230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 531230438Spjd return (zhp); 532230438Spjd} 533230438Spjd 534230438Spjdzfs_handle_t * 535228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 536228103Smm{ 537228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 538228103Smm 539228103Smm if (zhp == NULL) 540228103Smm return (NULL); 541228103Smm 542228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 543228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 544228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 545228103Smm sizeof (zhp->zfs_name)); 546228103Smm zhp->zfs_type = zhp_orig->zfs_type; 547228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 548228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 549228103Smm if (zhp_orig->zfs_props != NULL) { 550228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 551228103Smm (void) no_memory(zhp->zfs_hdl); 552228103Smm zfs_close(zhp); 553228103Smm return (NULL); 554228103Smm } 555228103Smm } 556228103Smm if (zhp_orig->zfs_user_props != NULL) { 557228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 558228103Smm &zhp->zfs_user_props, 0) != 0) { 559228103Smm (void) no_memory(zhp->zfs_hdl); 560228103Smm zfs_close(zhp); 561228103Smm return (NULL); 562228103Smm } 563228103Smm } 564228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 565228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 566228103Smm &zhp->zfs_recvd_props, 0)) { 567228103Smm (void) no_memory(zhp->zfs_hdl); 568228103Smm zfs_close(zhp); 569228103Smm return (NULL); 570228103Smm } 571228103Smm } 572228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 573228103Smm if (zhp_orig->zfs_mntopts != NULL) { 574228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 575228103Smm zhp_orig->zfs_mntopts); 576228103Smm } 577228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 578228103Smm return (zhp); 579228103Smm} 580228103Smm 581168404Spjd/* 582168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 583168404Spjd * argument is a mask of acceptable types. The function will print an 584168404Spjd * appropriate error message and return NULL if it can't be opened. 585168404Spjd */ 586168404Spjdzfs_handle_t * 587168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 588168404Spjd{ 589168404Spjd zfs_handle_t *zhp; 590168404Spjd char errbuf[1024]; 591168404Spjd 592168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 593168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 594168404Spjd 595168404Spjd /* 596168404Spjd * Validate the name before we even try to open it. 597168404Spjd */ 598185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 599168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 600168404Spjd "invalid dataset name")); 601168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 602168404Spjd return (NULL); 603168404Spjd } 604168404Spjd 605168404Spjd /* 606168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 607168404Spjd */ 608168404Spjd errno = 0; 609168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 610168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 611168404Spjd return (NULL); 612168404Spjd } 613168404Spjd 614240870Spjd if (zhp == NULL) { 615240870Spjd char *at = strchr(path, '@'); 616240870Spjd 617240870Spjd if (at != NULL) 618240870Spjd *at = '\0'; 619240870Spjd errno = 0; 620240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 621240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 622240870Spjd return (NULL); 623240870Spjd } 624240870Spjd if (at != NULL) 625240870Spjd *at = '@'; 626240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 627240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 628240870Spjd } 629240870Spjd 630168404Spjd if (!(types & zhp->zfs_type)) { 631168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 632168404Spjd zfs_close(zhp); 633168404Spjd return (NULL); 634168404Spjd } 635168404Spjd 636168404Spjd return (zhp); 637168404Spjd} 638168404Spjd 639168404Spjd/* 640168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 641168404Spjd */ 642168404Spjdvoid 643168404Spjdzfs_close(zfs_handle_t *zhp) 644168404Spjd{ 645168404Spjd if (zhp->zfs_mntopts) 646168404Spjd free(zhp->zfs_mntopts); 647168404Spjd nvlist_free(zhp->zfs_props); 648168404Spjd nvlist_free(zhp->zfs_user_props); 649219089Spjd nvlist_free(zhp->zfs_recvd_props); 650168404Spjd free(zhp); 651168404Spjd} 652168404Spjd 653209962Smmtypedef struct mnttab_node { 654209962Smm struct mnttab mtn_mt; 655209962Smm avl_node_t mtn_node; 656209962Smm} mnttab_node_t; 657209962Smm 658209962Smmstatic int 659209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 660209962Smm{ 661209962Smm const mnttab_node_t *mtn1 = arg1; 662209962Smm const mnttab_node_t *mtn2 = arg2; 663209962Smm int rv; 664209962Smm 665209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 666209962Smm 667209962Smm if (rv == 0) 668209962Smm return (0); 669209962Smm return (rv > 0 ? 1 : -1); 670209962Smm} 671209962Smm 672209962Smmvoid 673209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 674209962Smm{ 675209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 676209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 677209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 678209962Smm} 679209962Smm 680209962Smmvoid 681209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 682209962Smm{ 683209962Smm struct mnttab entry; 684209962Smm 685209962Smm rewind(hdl->libzfs_mnttab); 686209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 687209962Smm mnttab_node_t *mtn; 688209962Smm 689209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 690209962Smm continue; 691209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 692209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 693209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 694209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 695209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 696209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 697209962Smm } 698209962Smm} 699209962Smm 700209962Smmvoid 701209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 702209962Smm{ 703209962Smm void *cookie = NULL; 704209962Smm mnttab_node_t *mtn; 705209962Smm 706209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 707209962Smm free(mtn->mtn_mt.mnt_special); 708209962Smm free(mtn->mtn_mt.mnt_mountp); 709209962Smm free(mtn->mtn_mt.mnt_fstype); 710209962Smm free(mtn->mtn_mt.mnt_mntopts); 711209962Smm free(mtn); 712209962Smm } 713209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 714209962Smm} 715209962Smm 716209962Smmvoid 717209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 718209962Smm{ 719209962Smm hdl->libzfs_mnttab_enable = enable; 720209962Smm} 721209962Smm 722185029Spjdint 723209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 724209962Smm struct mnttab *entry) 725209962Smm{ 726209962Smm mnttab_node_t find; 727209962Smm mnttab_node_t *mtn; 728209962Smm 729209962Smm if (!hdl->libzfs_mnttab_enable) { 730209962Smm struct mnttab srch = { 0 }; 731209962Smm 732209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 733209962Smm libzfs_mnttab_fini(hdl); 734209962Smm rewind(hdl->libzfs_mnttab); 735209962Smm srch.mnt_special = (char *)fsname; 736209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 737209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 738209962Smm return (0); 739209962Smm else 740209962Smm return (ENOENT); 741209962Smm } 742209962Smm 743209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 744209962Smm libzfs_mnttab_update(hdl); 745209962Smm 746209962Smm find.mtn_mt.mnt_special = (char *)fsname; 747209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 748209962Smm if (mtn) { 749209962Smm *entry = mtn->mtn_mt; 750209962Smm return (0); 751209962Smm } 752209962Smm return (ENOENT); 753209962Smm} 754209962Smm 755209962Smmvoid 756209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 757209962Smm const char *mountp, const char *mntopts) 758209962Smm{ 759209962Smm mnttab_node_t *mtn; 760209962Smm 761209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 762209962Smm return; 763209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 764209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 765209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 766209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 767209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 768209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 769209962Smm} 770209962Smm 771209962Smmvoid 772209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 773209962Smm{ 774209962Smm mnttab_node_t find; 775209962Smm mnttab_node_t *ret; 776209962Smm 777209962Smm find.mtn_mt.mnt_special = (char *)fsname; 778209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 779209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 780209962Smm free(ret->mtn_mt.mnt_special); 781209962Smm free(ret->mtn_mt.mnt_mountp); 782209962Smm free(ret->mtn_mt.mnt_fstype); 783209962Smm free(ret->mtn_mt.mnt_mntopts); 784209962Smm free(ret); 785209962Smm } 786209962Smm} 787209962Smm 788209962Smmint 789185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 790168404Spjd{ 791185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 792168404Spjd 793185029Spjd if (zpool_handle == NULL) 794168404Spjd return (-1); 795168404Spjd 796185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 797185029Spjd ZPOOL_PROP_VERSION, NULL); 798168404Spjd return (0); 799168404Spjd} 800168404Spjd 801168404Spjd/* 802185029Spjd * The choice of reservation property depends on the SPA version. 803168404Spjd */ 804168404Spjdstatic int 805185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 806168404Spjd{ 807185029Spjd int spa_version; 808168404Spjd 809185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 810168404Spjd return (-1); 811168404Spjd 812185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 813185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 814185029Spjd else 815185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 816168404Spjd 817168404Spjd return (0); 818168404Spjd} 819168404Spjd 820168404Spjd/* 821168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 822168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 823168404Spjd * strings. 824168404Spjd */ 825168404Spjdnvlist_t * 826185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 827185029Spjd uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) 828168404Spjd{ 829168404Spjd nvpair_t *elem; 830168404Spjd uint64_t intval; 831168404Spjd char *strval; 832185029Spjd zfs_prop_t prop; 833168404Spjd nvlist_t *ret; 834185029Spjd int chosen_normal = -1; 835185029Spjd int chosen_utf = -1; 836168404Spjd 837168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 838168404Spjd (void) no_memory(hdl); 839168404Spjd return (NULL); 840168404Spjd } 841168404Spjd 842209962Smm /* 843209962Smm * Make sure this property is valid and applies to this type. 844209962Smm */ 845209962Smm 846168404Spjd elem = NULL; 847168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 848185029Spjd const char *propname = nvpair_name(elem); 849168404Spjd 850209962Smm prop = zfs_name_to_prop(propname); 851209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 852185029Spjd /* 853209962Smm * This is a user property: make sure it's a 854185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 855185029Spjd */ 856185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 857185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 858185029Spjd "'%s' must be a string"), propname); 859185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 860185029Spjd goto error; 861168404Spjd } 862168404Spjd 863185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 864185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 865185029Spjd "property name '%s' is too long"), 866185029Spjd propname); 867185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 868185029Spjd goto error; 869185029Spjd } 870185029Spjd 871168404Spjd (void) nvpair_value_string(elem, &strval); 872168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 873168404Spjd (void) no_memory(hdl); 874168404Spjd goto error; 875168404Spjd } 876168404Spjd continue; 877168404Spjd } 878168404Spjd 879209962Smm /* 880209962Smm * Currently, only user properties can be modified on 881209962Smm * snapshots. 882209962Smm */ 883185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 884185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 885185029Spjd "this property can not be modified for snapshots")); 886185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 887185029Spjd goto error; 888185029Spjd } 889168404Spjd 890209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 891209962Smm zfs_userquota_prop_t uqtype; 892209962Smm char newpropname[128]; 893209962Smm char domain[128]; 894209962Smm uint64_t rid; 895209962Smm uint64_t valary[3]; 896209962Smm 897209962Smm if (userquota_propname_decode(propname, zoned, 898209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 899209962Smm zfs_error_aux(hdl, 900209962Smm dgettext(TEXT_DOMAIN, 901209962Smm "'%s' has an invalid user/group name"), 902209962Smm propname); 903209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 904209962Smm goto error; 905209962Smm } 906209962Smm 907209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 908209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 909209962Smm zfs_error_aux(hdl, 910209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 911209962Smm propname); 912209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 913209962Smm errbuf); 914209962Smm goto error; 915209962Smm } 916209962Smm 917209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 918209962Smm (void) nvpair_value_string(elem, &strval); 919209962Smm if (strcmp(strval, "none") == 0) { 920209962Smm intval = 0; 921209962Smm } else if (zfs_nicestrtonum(hdl, 922209962Smm strval, &intval) != 0) { 923209962Smm (void) zfs_error(hdl, 924209962Smm EZFS_BADPROP, errbuf); 925209962Smm goto error; 926209962Smm } 927209962Smm } else if (nvpair_type(elem) == 928209962Smm DATA_TYPE_UINT64) { 929209962Smm (void) nvpair_value_uint64(elem, &intval); 930209962Smm if (intval == 0) { 931209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 932209962Smm "use 'none' to disable " 933209962Smm "userquota/groupquota")); 934209962Smm goto error; 935209962Smm } 936209962Smm } else { 937209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 938209962Smm "'%s' must be a number"), propname); 939209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 940209962Smm goto error; 941209962Smm } 942209962Smm 943219089Spjd /* 944219089Spjd * Encode the prop name as 945219089Spjd * userquota@<hex-rid>-domain, to make it easy 946219089Spjd * for the kernel to decode. 947219089Spjd */ 948209962Smm (void) snprintf(newpropname, sizeof (newpropname), 949219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 950219089Spjd (longlong_t)rid, domain); 951209962Smm valary[0] = uqtype; 952209962Smm valary[1] = rid; 953209962Smm valary[2] = intval; 954209962Smm if (nvlist_add_uint64_array(ret, newpropname, 955209962Smm valary, 3) != 0) { 956209962Smm (void) no_memory(hdl); 957209962Smm goto error; 958209962Smm } 959209962Smm continue; 960228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 961228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 962228103Smm "'%s' is readonly"), 963228103Smm propname); 964228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 965228103Smm goto error; 966209962Smm } 967209962Smm 968209962Smm if (prop == ZPROP_INVAL) { 969209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 970209962Smm "invalid property '%s'"), propname); 971209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 972209962Smm goto error; 973209962Smm } 974209962Smm 975168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 976168404Spjd zfs_error_aux(hdl, 977168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 978168404Spjd "apply to datasets of this type"), propname); 979168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 980168404Spjd goto error; 981168404Spjd } 982168404Spjd 983168404Spjd if (zfs_prop_readonly(prop) && 984185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 985168404Spjd zfs_error_aux(hdl, 986168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 987168404Spjd propname); 988168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 989168404Spjd goto error; 990168404Spjd } 991168404Spjd 992185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 993185029Spjd &strval, &intval, errbuf) != 0) 994185029Spjd goto error; 995185029Spjd 996168404Spjd /* 997185029Spjd * Perform some additional checks for specific properties. 998168404Spjd */ 999185029Spjd switch (prop) { 1000185029Spjd case ZFS_PROP_VERSION: 1001185029Spjd { 1002185029Spjd int version; 1003168404Spjd 1004185029Spjd if (zhp == NULL) 1005185029Spjd break; 1006185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1007185029Spjd if (intval < version) { 1008168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1009185029Spjd "Can not downgrade; already at version %u"), 1010185029Spjd version); 1011168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1012168404Spjd goto error; 1013168404Spjd } 1014168404Spjd break; 1015168404Spjd } 1016168404Spjd 1017168404Spjd case ZFS_PROP_RECORDSIZE: 1018168404Spjd case ZFS_PROP_VOLBLOCKSIZE: 1019168404Spjd /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ 1020168404Spjd if (intval < SPA_MINBLOCKSIZE || 1021168404Spjd intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { 1022168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1023168404Spjd "'%s' must be power of 2 from %u " 1024168404Spjd "to %uk"), propname, 1025168404Spjd (uint_t)SPA_MINBLOCKSIZE, 1026168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 1027168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1028168404Spjd goto error; 1029168404Spjd } 1030168404Spjd break; 1031168404Spjd 1032219089Spjd case ZFS_PROP_MLSLABEL: 1033219089Spjd { 1034219089Spjd#ifdef sun 1035219089Spjd /* 1036219089Spjd * Verify the mlslabel string and convert to 1037219089Spjd * internal hex label string. 1038219089Spjd */ 1039219089Spjd 1040219089Spjd m_label_t *new_sl; 1041219089Spjd char *hex = NULL; /* internal label string */ 1042219089Spjd 1043219089Spjd /* Default value is already OK. */ 1044219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1045219089Spjd break; 1046219089Spjd 1047219089Spjd /* Verify the label can be converted to binary form */ 1048219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1049219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1050219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1051219089Spjd goto badlabel; 1052168404Spjd } 1053168404Spjd 1054219089Spjd /* Now translate to hex internal label string */ 1055219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1056219089Spjd DEF_NAMES) != 0) { 1057219089Spjd if (hex) 1058219089Spjd free(hex); 1059219089Spjd goto badlabel; 1060219089Spjd } 1061219089Spjd m_label_free(new_sl); 1062219089Spjd 1063219089Spjd /* If string is already in internal form, we're done. */ 1064219089Spjd if (strcmp(strval, hex) == 0) { 1065219089Spjd free(hex); 1066219089Spjd break; 1067219089Spjd } 1068219089Spjd 1069219089Spjd /* Replace the label string with the internal form. */ 1070219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1071219089Spjd DATA_TYPE_STRING); 1072219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1073219089Spjd hex) == 0); 1074219089Spjd free(hex); 1075219089Spjd 1076168404Spjd break; 1077168404Spjd 1078219089Spjdbadlabel: 1079219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1080219089Spjd "invalid mlslabel '%s'"), strval); 1081219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1082219089Spjd m_label_free(new_sl); /* OK if null */ 1083219089Spjd#else /* !sun */ 1084219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1085219089Spjd "mlslabel is not supported on FreeBSD")); 1086219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1087219089Spjd#endif /* !sun */ 1088219089Spjd goto error; 1089219089Spjd 1090219089Spjd } 1091219089Spjd 1092168404Spjd case ZFS_PROP_MOUNTPOINT: 1093185029Spjd { 1094185029Spjd namecheck_err_t why; 1095185029Spjd 1096168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1097168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1098168404Spjd break; 1099168404Spjd 1100185029Spjd if (mountpoint_namecheck(strval, &why)) { 1101185029Spjd switch (why) { 1102185029Spjd case NAME_ERR_LEADING_SLASH: 1103185029Spjd zfs_error_aux(hdl, 1104185029Spjd dgettext(TEXT_DOMAIN, 1105185029Spjd "'%s' must be an absolute path, " 1106185029Spjd "'none', or 'legacy'"), propname); 1107185029Spjd break; 1108185029Spjd case NAME_ERR_TOOLONG: 1109185029Spjd zfs_error_aux(hdl, 1110185029Spjd dgettext(TEXT_DOMAIN, 1111185029Spjd "component of '%s' is too long"), 1112185029Spjd propname); 1113185029Spjd break; 1114185029Spjd } 1115168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1116168404Spjd goto error; 1117168404Spjd } 1118185029Spjd } 1119185029Spjd 1120168404Spjd /*FALLTHRU*/ 1121168404Spjd 1122185029Spjd case ZFS_PROP_SHARESMB: 1123168404Spjd case ZFS_PROP_SHARENFS: 1124168404Spjd /* 1125185029Spjd * For the mountpoint and sharenfs or sharesmb 1126185029Spjd * properties, check if it can be set in a 1127185029Spjd * global/non-global zone based on 1128168404Spjd * the zoned property value: 1129168404Spjd * 1130168404Spjd * global zone non-global zone 1131168404Spjd * -------------------------------------------------- 1132168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1133168404Spjd * sharenfs (no) sharenfs (no) 1134185029Spjd * sharesmb (no) sharesmb (no) 1135168404Spjd * 1136168404Spjd * zoned=off mountpoint (yes) N/A 1137168404Spjd * sharenfs (yes) 1138185029Spjd * sharesmb (yes) 1139168404Spjd */ 1140168404Spjd if (zoned) { 1141168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1142168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1143168404Spjd "'%s' cannot be set on " 1144168404Spjd "dataset in a non-global zone"), 1145168404Spjd propname); 1146168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1147168404Spjd errbuf); 1148168404Spjd goto error; 1149185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1150185029Spjd prop == ZFS_PROP_SHARESMB) { 1151168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1152168404Spjd "'%s' cannot be set in " 1153168404Spjd "a non-global zone"), propname); 1154168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1155168404Spjd errbuf); 1156168404Spjd goto error; 1157168404Spjd } 1158168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1159168404Spjd /* 1160168404Spjd * If zoned property is 'off', this must be in 1161209962Smm * a global zone. If not, something is wrong. 1162168404Spjd */ 1163168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1164168404Spjd "'%s' cannot be set while dataset " 1165168404Spjd "'zoned' property is set"), propname); 1166168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1167168404Spjd goto error; 1168168404Spjd } 1169168404Spjd 1170168404Spjd /* 1171185029Spjd * At this point, it is legitimate to set the 1172185029Spjd * property. Now we want to make sure that the 1173185029Spjd * property value is valid if it is sharenfs. 1174168404Spjd */ 1175185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1176185029Spjd prop == ZFS_PROP_SHARESMB) && 1177185029Spjd strcmp(strval, "on") != 0 && 1178185029Spjd strcmp(strval, "off") != 0) { 1179185029Spjd zfs_share_proto_t proto; 1180168404Spjd 1181185029Spjd if (prop == ZFS_PROP_SHARESMB) 1182185029Spjd proto = PROTO_SMB; 1183185029Spjd else 1184185029Spjd proto = PROTO_NFS; 1185185029Spjd 1186185029Spjd /* 1187185029Spjd * Must be an valid sharing protocol 1188185029Spjd * option string so init the libshare 1189185029Spjd * in order to enable the parser and 1190185029Spjd * then parse the options. We use the 1191185029Spjd * control API since we don't care about 1192185029Spjd * the current configuration and don't 1193185029Spjd * want the overhead of loading it 1194185029Spjd * until we actually do something. 1195185029Spjd */ 1196185029Spjd 1197185029Spjd if (zfs_init_libshare(hdl, 1198185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1199185029Spjd /* 1200185029Spjd * An error occurred so we can't do 1201185029Spjd * anything 1202185029Spjd */ 1203185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1204185029Spjd "'%s' cannot be set: problem " 1205185029Spjd "in share initialization"), 1206185029Spjd propname); 1207185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1208185029Spjd errbuf); 1209185029Spjd goto error; 1210185029Spjd } 1211185029Spjd 1212185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1213185029Spjd /* 1214185029Spjd * There was an error in parsing so 1215185029Spjd * deal with it by issuing an error 1216185029Spjd * message and leaving after 1217185029Spjd * uninitializing the the libshare 1218185029Spjd * interface. 1219185029Spjd */ 1220185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1221185029Spjd "'%s' cannot be set to invalid " 1222185029Spjd "options"), propname); 1223185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1224185029Spjd errbuf); 1225185029Spjd zfs_uninit_libshare(hdl); 1226185029Spjd goto error; 1227185029Spjd } 1228185029Spjd zfs_uninit_libshare(hdl); 1229168404Spjd } 1230185029Spjd 1231168404Spjd break; 1232185029Spjd case ZFS_PROP_UTF8ONLY: 1233185029Spjd chosen_utf = (int)intval; 1234185029Spjd break; 1235185029Spjd case ZFS_PROP_NORMALIZE: 1236185029Spjd chosen_normal = (int)intval; 1237185029Spjd break; 1238168404Spjd } 1239168404Spjd 1240168404Spjd /* 1241168404Spjd * For changes to existing volumes, we have some additional 1242168404Spjd * checks to enforce. 1243168404Spjd */ 1244168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1245168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1246168404Spjd ZFS_PROP_VOLSIZE); 1247168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1248168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1249168404Spjd char buf[64]; 1250168404Spjd 1251168404Spjd switch (prop) { 1252168404Spjd case ZFS_PROP_RESERVATION: 1253185029Spjd case ZFS_PROP_REFRESERVATION: 1254168404Spjd if (intval > volsize) { 1255168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1256168404Spjd "'%s' is greater than current " 1257168404Spjd "volume size"), propname); 1258168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1259168404Spjd errbuf); 1260168404Spjd goto error; 1261168404Spjd } 1262168404Spjd break; 1263168404Spjd 1264168404Spjd case ZFS_PROP_VOLSIZE: 1265168404Spjd if (intval % blocksize != 0) { 1266168404Spjd zfs_nicenum(blocksize, buf, 1267168404Spjd sizeof (buf)); 1268168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1269168404Spjd "'%s' must be a multiple of " 1270168404Spjd "volume block size (%s)"), 1271168404Spjd propname, buf); 1272168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1273168404Spjd errbuf); 1274168404Spjd goto error; 1275168404Spjd } 1276168404Spjd 1277168404Spjd if (intval == 0) { 1278168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1279168404Spjd "'%s' cannot be zero"), 1280168404Spjd propname); 1281168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1282168404Spjd errbuf); 1283168404Spjd goto error; 1284168404Spjd } 1285168404Spjd break; 1286168404Spjd } 1287168404Spjd } 1288168404Spjd } 1289168404Spjd 1290168404Spjd /* 1291185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1292185029Spjd * enforce rejection of non-UTF8 names. 1293185029Spjd * 1294185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1295185029Spjd * was explicitly not chosen, it is an error. 1296185029Spjd */ 1297185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1298185029Spjd if (nvlist_add_uint64(ret, 1299185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1300185029Spjd (void) no_memory(hdl); 1301185029Spjd goto error; 1302185029Spjd } 1303185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1304185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1305185029Spjd "'%s' must be set 'on' if normalization chosen"), 1306185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1307185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1308185029Spjd goto error; 1309185029Spjd } 1310219089Spjd return (ret); 1311185029Spjd 1312219089Spjderror: 1313219089Spjd nvlist_free(ret); 1314219089Spjd return (NULL); 1315219089Spjd} 1316219089Spjd 1317219089Spjdint 1318219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1319219089Spjd{ 1320219089Spjd uint64_t old_volsize; 1321219089Spjd uint64_t new_volsize; 1322219089Spjd uint64_t old_reservation; 1323219089Spjd uint64_t new_reservation; 1324219089Spjd zfs_prop_t resv_prop; 1325219089Spjd 1326185029Spjd /* 1327168404Spjd * If this is an existing volume, and someone is setting the volsize, 1328168404Spjd * make sure that it matches the reservation, or add it if necessary. 1329168404Spjd */ 1330219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1331219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1332219089Spjd return (-1); 1333219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1334219089Spjd if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != 1335219089Spjd old_reservation) || nvlist_lookup_uint64(nvl, 1336219089Spjd zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { 1337219089Spjd return (0); 1338219089Spjd } 1339219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1340219089Spjd &new_volsize) != 0) 1341219089Spjd return (-1); 1342219089Spjd new_reservation = zvol_volsize_to_reservation(new_volsize, 1343219089Spjd zhp->zfs_props); 1344219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1345219089Spjd new_reservation) != 0) { 1346219089Spjd (void) no_memory(zhp->zfs_hdl); 1347219089Spjd return (-1); 1348219089Spjd } 1349219089Spjd return (1); 1350219089Spjd} 1351168404Spjd 1352219089Spjdvoid 1353219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1354219089Spjd char *errbuf) 1355219089Spjd{ 1356219089Spjd switch (err) { 1357185029Spjd 1358219089Spjd case ENOSPC: 1359219089Spjd /* 1360219089Spjd * For quotas and reservations, ENOSPC indicates 1361219089Spjd * something different; setting a quota or reservation 1362219089Spjd * doesn't use any disk space. 1363219089Spjd */ 1364219089Spjd switch (prop) { 1365219089Spjd case ZFS_PROP_QUOTA: 1366219089Spjd case ZFS_PROP_REFQUOTA: 1367219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1368219089Spjd "size is less than current used or " 1369219089Spjd "reserved space")); 1370219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1371219089Spjd break; 1372219089Spjd 1373219089Spjd case ZFS_PROP_RESERVATION: 1374219089Spjd case ZFS_PROP_REFRESERVATION: 1375219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1376219089Spjd "size is greater than available space")); 1377219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1378219089Spjd break; 1379219089Spjd 1380219089Spjd default: 1381219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1382219089Spjd break; 1383168404Spjd } 1384219089Spjd break; 1385219089Spjd 1386219089Spjd case EBUSY: 1387219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1388219089Spjd break; 1389219089Spjd 1390219089Spjd case EROFS: 1391219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1392219089Spjd break; 1393219089Spjd 1394219089Spjd case ENOTSUP: 1395219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1396219089Spjd "pool and or dataset must be upgraded to set this " 1397219089Spjd "property or value")); 1398219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1399219089Spjd break; 1400219089Spjd 1401219089Spjd case ERANGE: 1402219089Spjd if (prop == ZFS_PROP_COMPRESSION) { 1403219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1404219089Spjd "property setting is not allowed on " 1405219089Spjd "bootable datasets")); 1406219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1407219089Spjd } else { 1408219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1409219089Spjd } 1410219089Spjd break; 1411219089Spjd 1412219089Spjd case EINVAL: 1413219089Spjd if (prop == ZPROP_INVAL) { 1414219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1415219089Spjd } else { 1416219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1417219089Spjd } 1418219089Spjd break; 1419219089Spjd 1420219089Spjd case EOVERFLOW: 1421219089Spjd /* 1422219089Spjd * This platform can't address a volume this big. 1423219089Spjd */ 1424219089Spjd#ifdef _ILP32 1425219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1426219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1427219089Spjd break; 1428219089Spjd } 1429219089Spjd#endif 1430219089Spjd /* FALLTHROUGH */ 1431219089Spjd default: 1432219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1433168404Spjd } 1434168404Spjd} 1435168404Spjd 1436168404Spjd/* 1437168404Spjd * Given a property name and value, set the property for the given dataset. 1438168404Spjd */ 1439168404Spjdint 1440168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1441168404Spjd{ 1442168404Spjd zfs_cmd_t zc = { 0 }; 1443168404Spjd int ret = -1; 1444168404Spjd prop_changelist_t *cl = NULL; 1445168404Spjd char errbuf[1024]; 1446168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1447168404Spjd nvlist_t *nvl = NULL, *realprops; 1448168404Spjd zfs_prop_t prop; 1449185029Spjd boolean_t do_prefix; 1450185029Spjd uint64_t idx; 1451219089Spjd int added_resv; 1452168404Spjd 1453168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1454168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1455168404Spjd zhp->zfs_name); 1456168404Spjd 1457168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1458168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1459168404Spjd (void) no_memory(hdl); 1460168404Spjd goto error; 1461168404Spjd } 1462168404Spjd 1463185029Spjd if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, 1464168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) 1465168404Spjd goto error; 1466185029Spjd 1467168404Spjd nvlist_free(nvl); 1468168404Spjd nvl = realprops; 1469168404Spjd 1470168404Spjd prop = zfs_name_to_prop(propname); 1471168404Spjd 1472168404Spjd /* We don't support those properties on FreeBSD. */ 1473168404Spjd switch (prop) { 1474197867Strasz case ZFS_PROP_DEVICES: 1475168404Spjd case ZFS_PROP_ISCSIOPTIONS: 1476197867Strasz case ZFS_PROP_XATTR: 1477197867Strasz case ZFS_PROP_VSCAN: 1478197867Strasz case ZFS_PROP_NBMAND: 1479219089Spjd case ZFS_PROP_MLSLABEL: 1480168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1481168404Spjd "property '%s' not supported on FreeBSD", propname); 1482168404Spjd ret = zfs_error(hdl, EZFS_PERM, errbuf); 1483168404Spjd goto error; 1484168404Spjd } 1485168404Spjd 1486219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1487219089Spjd if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) 1488219089Spjd goto error; 1489219089Spjd } 1490219089Spjd 1491185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1492168404Spjd goto error; 1493168404Spjd 1494168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1495168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1496168404Spjd "child dataset with inherited mountpoint is used " 1497168404Spjd "in a non-global zone")); 1498168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1499168404Spjd goto error; 1500168404Spjd } 1501168404Spjd 1502185029Spjd /* 1503238391Smm * We don't want to unmount & remount the dataset when changing 1504238391Smm * its canmount property to 'on' or 'noauto'. We only use 1505238391Smm * the changelist logic to unmount when setting canmount=off. 1506185029Spjd */ 1507238391Smm if (prop == ZFS_PROP_CANMOUNT) { 1508238391Smm uint64_t idx; 1509238391Smm int err = zprop_string_to_index(prop, propval, &idx, 1510238391Smm ZFS_TYPE_DATASET); 1511238391Smm if (err == 0 && idx != ZFS_CANMOUNT_OFF) 1512238391Smm do_prefix = B_FALSE; 1513238391Smm } 1514185029Spjd 1515185029Spjd if (do_prefix && (ret = changelist_prefix(cl)) != 0) 1516168404Spjd goto error; 1517168404Spjd 1518168404Spjd /* 1519168404Spjd * Execute the corresponding ioctl() to set this property. 1520168404Spjd */ 1521168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1522168404Spjd 1523185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1524168404Spjd goto error; 1525168404Spjd 1526185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1527209962Smm 1528168404Spjd if (ret != 0) { 1529219089Spjd zfs_setprop_error(hdl, prop, errno, errbuf); 1530219089Spjd if (added_resv && errno == ENOSPC) { 1531219089Spjd /* clean up the volsize property we tried to set */ 1532219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1533219089Spjd ZFS_PROP_VOLSIZE); 1534219089Spjd nvlist_free(nvl); 1535219089Spjd zcmd_free_nvlists(&zc); 1536219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1537219089Spjd goto error; 1538219089Spjd if (nvlist_add_uint64(nvl, 1539219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1540219089Spjd old_volsize) != 0) 1541219089Spjd goto error; 1542219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1543219089Spjd goto error; 1544219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1545168404Spjd } 1546168404Spjd } else { 1547185029Spjd if (do_prefix) 1548185029Spjd ret = changelist_postfix(cl); 1549185029Spjd 1550168404Spjd /* 1551168404Spjd * Refresh the statistics so the new property value 1552168404Spjd * is reflected. 1553168404Spjd */ 1554185029Spjd if (ret == 0) 1555168404Spjd (void) get_stats(zhp); 1556168404Spjd } 1557168404Spjd 1558168404Spjderror: 1559168404Spjd nvlist_free(nvl); 1560168404Spjd zcmd_free_nvlists(&zc); 1561168404Spjd if (cl) 1562168404Spjd changelist_free(cl); 1563168404Spjd return (ret); 1564168404Spjd} 1565168404Spjd 1566168404Spjd/* 1567219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1568219089Spjd * is TRUE, revert to the received value, if any. 1569168404Spjd */ 1570168404Spjdint 1571219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1572168404Spjd{ 1573168404Spjd zfs_cmd_t zc = { 0 }; 1574168404Spjd int ret; 1575168404Spjd prop_changelist_t *cl; 1576168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1577168404Spjd char errbuf[1024]; 1578168404Spjd zfs_prop_t prop; 1579168404Spjd 1580168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1581168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1582168404Spjd 1583219089Spjd zc.zc_cookie = received; 1584185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1585168404Spjd /* 1586168404Spjd * For user properties, the amount of work we have to do is very 1587168404Spjd * small, so just do it here. 1588168404Spjd */ 1589168404Spjd if (!zfs_prop_user(propname)) { 1590168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1591168404Spjd "invalid property")); 1592168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1593168404Spjd } 1594168404Spjd 1595168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1596168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1597168404Spjd 1598185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1599168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1600168404Spjd 1601168404Spjd return (0); 1602168404Spjd } 1603168404Spjd 1604168404Spjd /* 1605168404Spjd * Verify that this property is inheritable. 1606168404Spjd */ 1607168404Spjd if (zfs_prop_readonly(prop)) 1608168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1609168404Spjd 1610219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1611168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1612168404Spjd 1613168404Spjd /* 1614168404Spjd * Check to see if the value applies to this type 1615168404Spjd */ 1616168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1617168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1618168404Spjd 1619168404Spjd /* 1620219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1621168404Spjd */ 1622168404Spjd propname = zfs_prop_to_name(prop); 1623168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1624168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1625168404Spjd 1626168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1627168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1628168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1629168404Spjd "dataset is used in a non-global zone")); 1630168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1631168404Spjd } 1632168404Spjd 1633168404Spjd /* 1634168404Spjd * Determine datasets which will be affected by this change, if any. 1635168404Spjd */ 1636185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1637168404Spjd return (-1); 1638168404Spjd 1639168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1640168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1641168404Spjd "child dataset with inherited mountpoint is used " 1642168404Spjd "in a non-global zone")); 1643168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1644168404Spjd goto error; 1645168404Spjd } 1646168404Spjd 1647168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1648168404Spjd goto error; 1649168404Spjd 1650185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1651168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1652168404Spjd } else { 1653168404Spjd 1654168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1655168404Spjd goto error; 1656168404Spjd 1657168404Spjd /* 1658168404Spjd * Refresh the statistics so the new property is reflected. 1659168404Spjd */ 1660168404Spjd (void) get_stats(zhp); 1661168404Spjd } 1662168404Spjd 1663168404Spjderror: 1664168404Spjd changelist_free(cl); 1665168404Spjd return (ret); 1666168404Spjd} 1667168404Spjd 1668168404Spjd/* 1669168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1670168404Spjd * extract them appropriately. 1671168404Spjd */ 1672168404Spjdstatic uint64_t 1673168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1674168404Spjd{ 1675168404Spjd nvlist_t *nv; 1676168404Spjd uint64_t value; 1677168404Spjd 1678168404Spjd *source = NULL; 1679168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1680168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1681185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1682185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1683168404Spjd } else { 1684205198Sdelphij verify(!zhp->zfs_props_table || 1685205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1686168404Spjd value = zfs_prop_default_numeric(prop); 1687168404Spjd *source = ""; 1688168404Spjd } 1689168404Spjd 1690168404Spjd return (value); 1691168404Spjd} 1692168404Spjd 1693168404Spjdstatic char * 1694168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1695168404Spjd{ 1696168404Spjd nvlist_t *nv; 1697168404Spjd char *value; 1698168404Spjd 1699168404Spjd *source = NULL; 1700168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1701168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1702185029Spjd verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); 1703185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1704168404Spjd } else { 1705205198Sdelphij verify(!zhp->zfs_props_table || 1706205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1707168404Spjd if ((value = (char *)zfs_prop_default_string(prop)) == NULL) 1708168404Spjd value = ""; 1709168404Spjd *source = ""; 1710168404Spjd } 1711168404Spjd 1712168404Spjd return (value); 1713168404Spjd} 1714168404Spjd 1715219089Spjdstatic boolean_t 1716219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1717219089Spjd{ 1718219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1719219089Spjd} 1720219089Spjd 1721219089Spjdstatic void 1722219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1723219089Spjd{ 1724219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1725219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1726219089Spjd} 1727219089Spjd 1728219089Spjdstatic void 1729219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1730219089Spjd{ 1731219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1732219089Spjd *cookie = 0; 1733219089Spjd} 1734219089Spjd 1735168404Spjd/* 1736168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1737168404Spjd * zfs_prop_get_int() are built using this interface. 1738168404Spjd * 1739168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1740168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1741168404Spjd * If they differ from the on-disk values, report the current values and mark 1742168404Spjd * the source "temporary". 1743168404Spjd */ 1744168404Spjdstatic int 1745185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1746168404Spjd char **source, uint64_t *val) 1747168404Spjd{ 1748185029Spjd zfs_cmd_t zc = { 0 }; 1749185029Spjd nvlist_t *zplprops = NULL; 1750168404Spjd struct mnttab mnt; 1751168404Spjd char *mntopt_on = NULL; 1752168404Spjd char *mntopt_off = NULL; 1753219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1754168404Spjd 1755168404Spjd *source = NULL; 1756168404Spjd 1757168404Spjd switch (prop) { 1758168404Spjd case ZFS_PROP_ATIME: 1759168404Spjd mntopt_on = MNTOPT_ATIME; 1760168404Spjd mntopt_off = MNTOPT_NOATIME; 1761168404Spjd break; 1762168404Spjd 1763168404Spjd case ZFS_PROP_DEVICES: 1764168404Spjd mntopt_on = MNTOPT_DEVICES; 1765168404Spjd mntopt_off = MNTOPT_NODEVICES; 1766168404Spjd break; 1767168404Spjd 1768168404Spjd case ZFS_PROP_EXEC: 1769168404Spjd mntopt_on = MNTOPT_EXEC; 1770168404Spjd mntopt_off = MNTOPT_NOEXEC; 1771168404Spjd break; 1772168404Spjd 1773168404Spjd case ZFS_PROP_READONLY: 1774168404Spjd mntopt_on = MNTOPT_RO; 1775168404Spjd mntopt_off = MNTOPT_RW; 1776168404Spjd break; 1777168404Spjd 1778168404Spjd case ZFS_PROP_SETUID: 1779168404Spjd mntopt_on = MNTOPT_SETUID; 1780168404Spjd mntopt_off = MNTOPT_NOSETUID; 1781168404Spjd break; 1782168404Spjd 1783168404Spjd case ZFS_PROP_XATTR: 1784168404Spjd mntopt_on = MNTOPT_XATTR; 1785168404Spjd mntopt_off = MNTOPT_NOXATTR; 1786168404Spjd break; 1787185029Spjd 1788185029Spjd case ZFS_PROP_NBMAND: 1789185029Spjd mntopt_on = MNTOPT_NBMAND; 1790185029Spjd mntopt_off = MNTOPT_NONBMAND; 1791185029Spjd break; 1792168404Spjd } 1793168404Spjd 1794168404Spjd /* 1795168404Spjd * Because looking up the mount options is potentially expensive 1796168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1797168404Spjd * we're looking up a property which requires its presence. 1798168404Spjd */ 1799168404Spjd if (!zhp->zfs_mntcheck && 1800168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1801209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1802209962Smm struct mnttab entry; 1803168404Spjd 1804209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1805209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1806168404Spjd entry.mnt_mntopts); 1807168404Spjd if (zhp->zfs_mntopts == NULL) 1808168404Spjd return (-1); 1809168404Spjd } 1810168404Spjd 1811168404Spjd zhp->zfs_mntcheck = B_TRUE; 1812168404Spjd } 1813168404Spjd 1814168404Spjd if (zhp->zfs_mntopts == NULL) 1815168404Spjd mnt.mnt_mntopts = ""; 1816168404Spjd else 1817168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1818168404Spjd 1819168404Spjd switch (prop) { 1820168404Spjd case ZFS_PROP_ATIME: 1821168404Spjd case ZFS_PROP_DEVICES: 1822168404Spjd case ZFS_PROP_EXEC: 1823168404Spjd case ZFS_PROP_READONLY: 1824168404Spjd case ZFS_PROP_SETUID: 1825168404Spjd case ZFS_PROP_XATTR: 1826185029Spjd case ZFS_PROP_NBMAND: 1827168404Spjd *val = getprop_uint64(zhp, prop, source); 1828168404Spjd 1829219089Spjd if (received) 1830219089Spjd break; 1831219089Spjd 1832168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 1833168404Spjd *val = B_TRUE; 1834168404Spjd if (src) 1835185029Spjd *src = ZPROP_SRC_TEMPORARY; 1836168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 1837168404Spjd *val = B_FALSE; 1838168404Spjd if (src) 1839185029Spjd *src = ZPROP_SRC_TEMPORARY; 1840168404Spjd } 1841168404Spjd break; 1842168404Spjd 1843168404Spjd case ZFS_PROP_CANMOUNT: 1844219089Spjd case ZFS_PROP_VOLSIZE: 1845168404Spjd case ZFS_PROP_QUOTA: 1846185029Spjd case ZFS_PROP_REFQUOTA: 1847168404Spjd case ZFS_PROP_RESERVATION: 1848185029Spjd case ZFS_PROP_REFRESERVATION: 1849168404Spjd *val = getprop_uint64(zhp, prop, source); 1850219089Spjd 1851219089Spjd if (*source == NULL) { 1852219089Spjd /* not default, must be local */ 1853168404Spjd *source = zhp->zfs_name; 1854219089Spjd } 1855168404Spjd break; 1856168404Spjd 1857168404Spjd case ZFS_PROP_MOUNTED: 1858168404Spjd *val = (zhp->zfs_mntopts != NULL); 1859168404Spjd break; 1860168404Spjd 1861168404Spjd case ZFS_PROP_NUMCLONES: 1862168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 1863168404Spjd break; 1864168404Spjd 1865185029Spjd case ZFS_PROP_VERSION: 1866185029Spjd case ZFS_PROP_NORMALIZE: 1867185029Spjd case ZFS_PROP_UTF8ONLY: 1868185029Spjd case ZFS_PROP_CASE: 1869185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 1870185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 1871185029Spjd return (-1); 1872185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1873185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 1874185029Spjd zcmd_free_nvlists(&zc); 1875219089Spjd return (-1); 1876185029Spjd } 1877185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 1878185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 1879185029Spjd val) != 0) { 1880185029Spjd zcmd_free_nvlists(&zc); 1881219089Spjd return (-1); 1882185029Spjd } 1883185029Spjd if (zplprops) 1884185029Spjd nvlist_free(zplprops); 1885185029Spjd zcmd_free_nvlists(&zc); 1886185029Spjd break; 1887185029Spjd 1888168404Spjd default: 1889185029Spjd switch (zfs_prop_get_type(prop)) { 1890185029Spjd case PROP_TYPE_NUMBER: 1891185029Spjd case PROP_TYPE_INDEX: 1892185029Spjd *val = getprop_uint64(zhp, prop, source); 1893185029Spjd /* 1894209962Smm * If we tried to use a default value for a 1895185029Spjd * readonly property, it means that it was not 1896219089Spjd * present. 1897185029Spjd */ 1898185029Spjd if (zfs_prop_readonly(prop) && 1899219089Spjd *source != NULL && (*source)[0] == '\0') { 1900219089Spjd *source = NULL; 1901185029Spjd } 1902185029Spjd break; 1903185029Spjd 1904185029Spjd case PROP_TYPE_STRING: 1905185029Spjd default: 1906185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 1907185029Spjd "cannot get non-numeric property")); 1908185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 1909185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 1910185029Spjd } 1911168404Spjd } 1912168404Spjd 1913168404Spjd return (0); 1914168404Spjd} 1915168404Spjd 1916168404Spjd/* 1917168404Spjd * Calculate the source type, given the raw source string. 1918168404Spjd */ 1919168404Spjdstatic void 1920185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 1921168404Spjd char *statbuf, size_t statlen) 1922168404Spjd{ 1923185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 1924168404Spjd return; 1925168404Spjd 1926168404Spjd if (source == NULL) { 1927185029Spjd *srctype = ZPROP_SRC_NONE; 1928168404Spjd } else if (source[0] == '\0') { 1929185029Spjd *srctype = ZPROP_SRC_DEFAULT; 1930219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 1931219089Spjd *srctype = ZPROP_SRC_RECEIVED; 1932168404Spjd } else { 1933168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 1934185029Spjd *srctype = ZPROP_SRC_LOCAL; 1935168404Spjd } else { 1936168404Spjd (void) strlcpy(statbuf, source, statlen); 1937185029Spjd *srctype = ZPROP_SRC_INHERITED; 1938168404Spjd } 1939168404Spjd } 1940168404Spjd 1941168404Spjd} 1942168404Spjd 1943219089Spjdint 1944219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 1945219089Spjd size_t proplen, boolean_t literal) 1946219089Spjd{ 1947219089Spjd zfs_prop_t prop; 1948219089Spjd int err = 0; 1949219089Spjd 1950219089Spjd if (zhp->zfs_recvd_props == NULL) 1951219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 1952219089Spjd return (-1); 1953219089Spjd 1954219089Spjd prop = zfs_name_to_prop(propname); 1955219089Spjd 1956219089Spjd if (prop != ZPROP_INVAL) { 1957219089Spjd uint64_t cookie; 1958219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 1959219089Spjd return (-1); 1960219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 1961219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 1962219089Spjd NULL, NULL, 0, literal); 1963219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 1964219089Spjd } else { 1965219089Spjd nvlist_t *propval; 1966219089Spjd char *recvdval; 1967219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 1968219089Spjd propname, &propval) != 0) 1969219089Spjd return (-1); 1970219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 1971219089Spjd &recvdval) == 0); 1972219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 1973219089Spjd } 1974219089Spjd 1975219089Spjd return (err == 0 ? 0 : -1); 1976219089Spjd} 1977219089Spjd 1978228103Smmstatic int 1979228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 1980228103Smm{ 1981228103Smm nvlist_t *value; 1982228103Smm nvpair_t *pair; 1983228103Smm 1984228103Smm value = zfs_get_clones_nvl(zhp); 1985228103Smm if (value == NULL) 1986228103Smm return (-1); 1987228103Smm 1988228103Smm propbuf[0] = '\0'; 1989228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 1990228103Smm pair = nvlist_next_nvpair(value, pair)) { 1991228103Smm if (propbuf[0] != '\0') 1992228103Smm (void) strlcat(propbuf, ",", proplen); 1993228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 1994228103Smm } 1995228103Smm 1996228103Smm return (0); 1997228103Smm} 1998228103Smm 1999228103Smmstruct get_clones_arg { 2000228103Smm uint64_t numclones; 2001228103Smm nvlist_t *value; 2002228103Smm const char *origin; 2003228103Smm char buf[ZFS_MAXNAMELEN]; 2004228103Smm}; 2005228103Smm 2006228103Smmint 2007228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2008228103Smm{ 2009228103Smm struct get_clones_arg *gca = arg; 2010228103Smm 2011228103Smm if (gca->numclones == 0) { 2012228103Smm zfs_close(zhp); 2013228103Smm return (0); 2014228103Smm } 2015228103Smm 2016228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2017228103Smm NULL, NULL, 0, B_TRUE) != 0) 2018228103Smm goto out; 2019228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2020228103Smm if (nvlist_add_boolean(gca->value, zfs_get_name(zhp)) != 0) { 2021228103Smm zfs_close(zhp); 2022228103Smm return (no_memory(zhp->zfs_hdl)); 2023228103Smm } 2024228103Smm gca->numclones--; 2025228103Smm } 2026228103Smm 2027228103Smmout: 2028228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2029228103Smm zfs_close(zhp); 2030228103Smm return (0); 2031228103Smm} 2032228103Smm 2033228103Smmnvlist_t * 2034228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2035228103Smm{ 2036228103Smm nvlist_t *nv, *value; 2037228103Smm 2038228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2039228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2040228103Smm struct get_clones_arg gca; 2041228103Smm 2042228103Smm /* 2043228103Smm * if this is a snapshot, then the kernel wasn't able 2044228103Smm * to get the clones. Do it by slowly iterating. 2045228103Smm */ 2046228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2047228103Smm return (NULL); 2048228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2049228103Smm return (NULL); 2050228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2051228103Smm nvlist_free(nv); 2052228103Smm return (NULL); 2053228103Smm } 2054228103Smm 2055228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2056228103Smm gca.value = value; 2057228103Smm gca.origin = zhp->zfs_name; 2058228103Smm 2059228103Smm if (gca.numclones != 0) { 2060228103Smm zfs_handle_t *root; 2061228103Smm char pool[ZFS_MAXNAMELEN]; 2062228103Smm char *cp = pool; 2063228103Smm 2064228103Smm /* get the pool name */ 2065228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2066228103Smm (void) strsep(&cp, "/@"); 2067228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2068228103Smm ZFS_TYPE_FILESYSTEM); 2069228103Smm 2070228103Smm (void) get_clones_cb(root, &gca); 2071228103Smm } 2072228103Smm 2073228103Smm if (gca.numclones != 0 || 2074228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2075228103Smm nvlist_add_nvlist(zhp->zfs_props, 2076228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2077228103Smm nvlist_free(nv); 2078228103Smm nvlist_free(value); 2079228103Smm return (NULL); 2080228103Smm } 2081228103Smm nvlist_free(nv); 2082228103Smm nvlist_free(value); 2083228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2084228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2085228103Smm } 2086228103Smm 2087228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2088228103Smm 2089228103Smm return (value); 2090228103Smm} 2091228103Smm 2092168404Spjd/* 2093168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2094168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2095168404Spjd * human-readable form. 2096168404Spjd * 2097168404Spjd * Returns 0 on success, or -1 on error. 2098168404Spjd */ 2099168404Spjdint 2100168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2101185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2102168404Spjd{ 2103168404Spjd char *source = NULL; 2104168404Spjd uint64_t val; 2105168404Spjd char *str; 2106168404Spjd const char *strval; 2107219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2108168404Spjd 2109168404Spjd /* 2110168404Spjd * Check to see if this property applies to our object 2111168404Spjd */ 2112168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2113168404Spjd return (-1); 2114168404Spjd 2115219089Spjd if (received && zfs_prop_readonly(prop)) 2116219089Spjd return (-1); 2117219089Spjd 2118168404Spjd if (src) 2119185029Spjd *src = ZPROP_SRC_NONE; 2120168404Spjd 2121168404Spjd switch (prop) { 2122168404Spjd case ZFS_PROP_CREATION: 2123168404Spjd /* 2124168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2125168404Spjd * this into a string unless 'literal' is specified. 2126168404Spjd */ 2127168404Spjd { 2128168404Spjd val = getprop_uint64(zhp, prop, &source); 2129168404Spjd time_t time = (time_t)val; 2130168404Spjd struct tm t; 2131168404Spjd 2132168404Spjd if (literal || 2133168404Spjd localtime_r(&time, &t) == NULL || 2134168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2135168404Spjd &t) == 0) 2136168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2137168404Spjd } 2138168404Spjd break; 2139168404Spjd 2140168404Spjd case ZFS_PROP_MOUNTPOINT: 2141168404Spjd /* 2142168404Spjd * Getting the precise mountpoint can be tricky. 2143168404Spjd * 2144168404Spjd * - for 'none' or 'legacy', return those values. 2145168404Spjd * - for inherited mountpoints, we want to take everything 2146168404Spjd * after our ancestor and append it to the inherited value. 2147168404Spjd * 2148168404Spjd * If the pool has an alternate root, we want to prepend that 2149168404Spjd * root to any values we return. 2150168404Spjd */ 2151185029Spjd 2152168404Spjd str = getprop_string(zhp, prop, &source); 2153168404Spjd 2154185029Spjd if (str[0] == '/') { 2155185029Spjd char buf[MAXPATHLEN]; 2156185029Spjd char *root = buf; 2157219089Spjd const char *relpath; 2158168404Spjd 2159219089Spjd /* 2160219089Spjd * If we inherit the mountpoint, even from a dataset 2161219089Spjd * with a received value, the source will be the path of 2162219089Spjd * the dataset we inherit from. If source is 2163219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2164219089Spjd * inherited. 2165219089Spjd */ 2166219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2167219089Spjd relpath = ""; 2168219089Spjd } else { 2169219089Spjd relpath = zhp->zfs_name + strlen(source); 2170219089Spjd if (relpath[0] == '/') 2171219089Spjd relpath++; 2172219089Spjd } 2173185029Spjd 2174185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2175185029Spjd ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || 2176185029Spjd (strcmp(root, "-") == 0)) 2177185029Spjd root[0] = '\0'; 2178185029Spjd /* 2179185029Spjd * Special case an alternate root of '/'. This will 2180185029Spjd * avoid having multiple leading slashes in the 2181185029Spjd * mountpoint path. 2182185029Spjd */ 2183185029Spjd if (strcmp(root, "/") == 0) 2184185029Spjd root++; 2185185029Spjd 2186185029Spjd /* 2187185029Spjd * If the mountpoint is '/' then skip over this 2188185029Spjd * if we are obtaining either an alternate root or 2189185029Spjd * an inherited mountpoint. 2190185029Spjd */ 2191185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2192185029Spjd relpath[0] != '\0')) 2193168404Spjd str++; 2194168404Spjd 2195168404Spjd if (relpath[0] == '\0') 2196168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2197168404Spjd root, str); 2198168404Spjd else 2199168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2200168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2201168404Spjd relpath); 2202168404Spjd } else { 2203168404Spjd /* 'legacy' or 'none' */ 2204168404Spjd (void) strlcpy(propbuf, str, proplen); 2205168404Spjd } 2206168404Spjd 2207168404Spjd break; 2208168404Spjd 2209168404Spjd case ZFS_PROP_ORIGIN: 2210168404Spjd (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), 2211168404Spjd proplen); 2212168404Spjd /* 2213168404Spjd * If there is no parent at all, return failure to indicate that 2214168404Spjd * it doesn't apply to this dataset. 2215168404Spjd */ 2216168404Spjd if (propbuf[0] == '\0') 2217168404Spjd return (-1); 2218168404Spjd break; 2219168404Spjd 2220228103Smm case ZFS_PROP_CLONES: 2221228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2222228103Smm return (-1); 2223228103Smm break; 2224228103Smm 2225168404Spjd case ZFS_PROP_QUOTA: 2226185029Spjd case ZFS_PROP_REFQUOTA: 2227168404Spjd case ZFS_PROP_RESERVATION: 2228185029Spjd case ZFS_PROP_REFRESERVATION: 2229185029Spjd 2230168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2231168404Spjd return (-1); 2232168404Spjd 2233168404Spjd /* 2234168404Spjd * If quota or reservation is 0, we translate this into 'none' 2235168404Spjd * (unless literal is set), and indicate that it's the default 2236168404Spjd * value. Otherwise, we print the number nicely and indicate 2237168404Spjd * that its set locally. 2238168404Spjd */ 2239168404Spjd if (val == 0) { 2240168404Spjd if (literal) 2241168404Spjd (void) strlcpy(propbuf, "0", proplen); 2242168404Spjd else 2243168404Spjd (void) strlcpy(propbuf, "none", proplen); 2244168404Spjd } else { 2245168404Spjd if (literal) 2246168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2247168404Spjd (u_longlong_t)val); 2248168404Spjd else 2249168404Spjd zfs_nicenum(val, propbuf, proplen); 2250168404Spjd } 2251168404Spjd break; 2252168404Spjd 2253223623Smm case ZFS_PROP_REFRATIO: 2254168404Spjd case ZFS_PROP_COMPRESSRATIO: 2255168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2256168404Spjd return (-1); 2257219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2258219089Spjd (u_longlong_t)(val / 100), 2259219089Spjd (u_longlong_t)(val % 100)); 2260168404Spjd break; 2261168404Spjd 2262168404Spjd case ZFS_PROP_TYPE: 2263168404Spjd switch (zhp->zfs_type) { 2264168404Spjd case ZFS_TYPE_FILESYSTEM: 2265168404Spjd str = "filesystem"; 2266168404Spjd break; 2267168404Spjd case ZFS_TYPE_VOLUME: 2268168404Spjd str = "volume"; 2269168404Spjd break; 2270168404Spjd case ZFS_TYPE_SNAPSHOT: 2271168404Spjd str = "snapshot"; 2272168404Spjd break; 2273168404Spjd default: 2274168404Spjd abort(); 2275168404Spjd } 2276168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2277168404Spjd break; 2278168404Spjd 2279168404Spjd case ZFS_PROP_MOUNTED: 2280168404Spjd /* 2281168404Spjd * The 'mounted' property is a pseudo-property that described 2282168404Spjd * whether the filesystem is currently mounted. Even though 2283168404Spjd * it's a boolean value, the typical values of "on" and "off" 2284168404Spjd * don't make sense, so we translate to "yes" and "no". 2285168404Spjd */ 2286168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2287168404Spjd src, &source, &val) != 0) 2288168404Spjd return (-1); 2289168404Spjd if (val) 2290168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2291168404Spjd else 2292168404Spjd (void) strlcpy(propbuf, "no", proplen); 2293168404Spjd break; 2294168404Spjd 2295168404Spjd case ZFS_PROP_NAME: 2296168404Spjd /* 2297168404Spjd * The 'name' property is a pseudo-property derived from the 2298168404Spjd * dataset name. It is presented as a real property to simplify 2299168404Spjd * consumers. 2300168404Spjd */ 2301168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2302168404Spjd break; 2303168404Spjd 2304219089Spjd case ZFS_PROP_MLSLABEL: 2305219089Spjd { 2306219089Spjd#ifdef sun 2307219089Spjd m_label_t *new_sl = NULL; 2308219089Spjd char *ascii = NULL; /* human readable label */ 2309219089Spjd 2310219089Spjd (void) strlcpy(propbuf, 2311219089Spjd getprop_string(zhp, prop, &source), proplen); 2312219089Spjd 2313219089Spjd if (literal || (strcasecmp(propbuf, 2314219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2315219089Spjd break; 2316219089Spjd 2317219089Spjd /* 2318219089Spjd * Try to translate the internal hex string to 2319219089Spjd * human-readable output. If there are any 2320219089Spjd * problems just use the hex string. 2321219089Spjd */ 2322219089Spjd 2323219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2324219089Spjd L_NO_CORRECTION, NULL) == -1) { 2325219089Spjd m_label_free(new_sl); 2326219089Spjd break; 2327219089Spjd } 2328219089Spjd 2329219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2330219089Spjd DEF_NAMES) != 0) { 2331219089Spjd if (ascii) 2332219089Spjd free(ascii); 2333219089Spjd m_label_free(new_sl); 2334219089Spjd break; 2335219089Spjd } 2336219089Spjd m_label_free(new_sl); 2337219089Spjd 2338219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2339219089Spjd free(ascii); 2340219089Spjd#else /* !sun */ 2341219089Spjd propbuf[0] = '\0'; 2342219089Spjd#endif /* !sun */ 2343219089Spjd } 2344219089Spjd break; 2345219089Spjd 2346236705Smm case ZFS_PROP_GUID: 2347236705Smm /* 2348236705Smm * GUIDs are stored as numbers, but they are identifiers. 2349236705Smm * We don't want them to be pretty printed, because pretty 2350236705Smm * printing mangles the ID into a truncated and useless value. 2351236705Smm */ 2352236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2353236705Smm return (-1); 2354236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2355236705Smm break; 2356236705Smm 2357168404Spjd default: 2358185029Spjd switch (zfs_prop_get_type(prop)) { 2359185029Spjd case PROP_TYPE_NUMBER: 2360185029Spjd if (get_numeric_property(zhp, prop, src, 2361185029Spjd &source, &val) != 0) 2362185029Spjd return (-1); 2363185029Spjd if (literal) 2364185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2365185029Spjd (u_longlong_t)val); 2366185029Spjd else 2367185029Spjd zfs_nicenum(val, propbuf, proplen); 2368185029Spjd break; 2369185029Spjd 2370185029Spjd case PROP_TYPE_STRING: 2371185029Spjd (void) strlcpy(propbuf, 2372185029Spjd getprop_string(zhp, prop, &source), proplen); 2373185029Spjd break; 2374185029Spjd 2375185029Spjd case PROP_TYPE_INDEX: 2376185029Spjd if (get_numeric_property(zhp, prop, src, 2377185029Spjd &source, &val) != 0) 2378185029Spjd return (-1); 2379185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2380185029Spjd return (-1); 2381185029Spjd (void) strlcpy(propbuf, strval, proplen); 2382185029Spjd break; 2383185029Spjd 2384185029Spjd default: 2385185029Spjd abort(); 2386185029Spjd } 2387168404Spjd } 2388168404Spjd 2389168404Spjd get_source(zhp, src, source, statbuf, statlen); 2390168404Spjd 2391168404Spjd return (0); 2392168404Spjd} 2393168404Spjd 2394168404Spjd/* 2395168404Spjd * Utility function to get the given numeric property. Does no validation that 2396168404Spjd * the given property is the appropriate type; should only be used with 2397168404Spjd * hard-coded property types. 2398168404Spjd */ 2399168404Spjduint64_t 2400168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2401168404Spjd{ 2402168404Spjd char *source; 2403168404Spjd uint64_t val; 2404168404Spjd 2405185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2406168404Spjd 2407168404Spjd return (val); 2408168404Spjd} 2409168404Spjd 2410185029Spjdint 2411185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2412185029Spjd{ 2413185029Spjd char buf[64]; 2414185029Spjd 2415209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2416185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2417185029Spjd} 2418185029Spjd 2419168404Spjd/* 2420168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2421168404Spjd */ 2422168404Spjdint 2423168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2424185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2425168404Spjd{ 2426168404Spjd char *source; 2427168404Spjd 2428168404Spjd /* 2429168404Spjd * Check to see if this property applies to our object 2430168404Spjd */ 2431185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2432168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2433168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2434168404Spjd zfs_prop_to_name(prop))); 2435185029Spjd } 2436168404Spjd 2437168404Spjd if (src) 2438185029Spjd *src = ZPROP_SRC_NONE; 2439168404Spjd 2440168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2441168404Spjd return (-1); 2442168404Spjd 2443168404Spjd get_source(zhp, src, source, statbuf, statlen); 2444168404Spjd 2445168404Spjd return (0); 2446168404Spjd} 2447168404Spjd 2448209962Smmstatic int 2449209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2450209962Smm char **domainp, idmap_rid_t *ridp) 2451209962Smm{ 2452209962Smm#ifdef sun 2453209962Smm idmap_get_handle_t *get_hdl = NULL; 2454209962Smm idmap_stat status; 2455209962Smm int err = EINVAL; 2456209962Smm 2457219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2458209962Smm goto out; 2459209962Smm 2460209962Smm if (isuser) { 2461209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2462209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2463209962Smm } else { 2464209962Smm err = idmap_get_sidbygid(get_hdl, id, 2465209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2466209962Smm } 2467209962Smm if (err == IDMAP_SUCCESS && 2468209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2469209962Smm status == IDMAP_SUCCESS) 2470209962Smm err = 0; 2471209962Smm else 2472209962Smm err = EINVAL; 2473209962Smmout: 2474209962Smm if (get_hdl) 2475209962Smm idmap_get_destroy(get_hdl); 2476209962Smm return (err); 2477209962Smm#else /* !sun */ 2478209962Smm assert(!"invalid code path"); 2479209962Smm#endif /* !sun */ 2480209962Smm} 2481209962Smm 2482168404Spjd/* 2483209962Smm * convert the propname into parameters needed by kernel 2484209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2485209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2486209962Smm */ 2487209962Smmstatic int 2488209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2489209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2490209962Smm{ 2491209962Smm zfs_userquota_prop_t type; 2492209962Smm char *cp, *end; 2493209962Smm char *numericsid = NULL; 2494209962Smm boolean_t isuser; 2495209962Smm 2496209962Smm domain[0] = '\0'; 2497209962Smm 2498209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2499209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2500209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2501209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2502209962Smm break; 2503209962Smm } 2504209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2505209962Smm return (EINVAL); 2506209962Smm *typep = type; 2507209962Smm 2508209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2509209962Smm type == ZFS_PROP_USERUSED); 2510209962Smm 2511209962Smm cp = strchr(propname, '@') + 1; 2512209962Smm 2513209962Smm if (strchr(cp, '@')) { 2514209962Smm#ifdef sun 2515209962Smm /* 2516209962Smm * It's a SID name (eg "user@domain") that needs to be 2517209962Smm * turned into S-1-domainID-RID. 2518209962Smm */ 2519209962Smm directory_error_t e; 2520209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2521209962Smm return (ENOENT); 2522209962Smm if (isuser) { 2523209962Smm e = directory_sid_from_user_name(NULL, 2524209962Smm cp, &numericsid); 2525209962Smm } else { 2526209962Smm e = directory_sid_from_group_name(NULL, 2527209962Smm cp, &numericsid); 2528209962Smm } 2529209962Smm if (e != NULL) { 2530209962Smm directory_error_free(e); 2531209962Smm return (ENOENT); 2532209962Smm } 2533209962Smm if (numericsid == NULL) 2534209962Smm return (ENOENT); 2535209962Smm cp = numericsid; 2536209962Smm /* will be further decoded below */ 2537209962Smm#else /* !sun */ 2538219089Spjd return (ENOENT); 2539209962Smm#endif /* !sun */ 2540209962Smm } 2541209962Smm 2542209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2543209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2544209962Smm (void) strlcpy(domain, cp, domainlen); 2545209962Smm cp = strrchr(domain, '-'); 2546209962Smm *cp = '\0'; 2547209962Smm cp++; 2548209962Smm 2549209962Smm errno = 0; 2550209962Smm *ridp = strtoull(cp, &end, 10); 2551209962Smm if (numericsid) { 2552209962Smm free(numericsid); 2553209962Smm numericsid = NULL; 2554209962Smm } 2555209962Smm if (errno != 0 || *end != '\0') 2556209962Smm return (EINVAL); 2557209962Smm } else if (!isdigit(*cp)) { 2558209962Smm /* 2559209962Smm * It's a user/group name (eg "user") that needs to be 2560209962Smm * turned into a uid/gid 2561209962Smm */ 2562209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2563209962Smm return (ENOENT); 2564209962Smm if (isuser) { 2565209962Smm struct passwd *pw; 2566209962Smm pw = getpwnam(cp); 2567209962Smm if (pw == NULL) 2568209962Smm return (ENOENT); 2569209962Smm *ridp = pw->pw_uid; 2570209962Smm } else { 2571209962Smm struct group *gr; 2572209962Smm gr = getgrnam(cp); 2573209962Smm if (gr == NULL) 2574209962Smm return (ENOENT); 2575209962Smm *ridp = gr->gr_gid; 2576209962Smm } 2577209962Smm } else { 2578209962Smm /* It's a user/group ID (eg "12345"). */ 2579209962Smm uid_t id = strtoul(cp, &end, 10); 2580209962Smm idmap_rid_t rid; 2581209962Smm char *mapdomain; 2582209962Smm 2583209962Smm if (*end != '\0') 2584209962Smm return (EINVAL); 2585209962Smm if (id > MAXUID) { 2586209962Smm /* It's an ephemeral ID. */ 2587209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2588209962Smm &mapdomain, &rid) != 0) 2589209962Smm return (ENOENT); 2590209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2591209962Smm *ridp = rid; 2592209962Smm } else { 2593209962Smm *ridp = id; 2594209962Smm } 2595209962Smm } 2596209962Smm 2597209962Smm ASSERT3P(numericsid, ==, NULL); 2598209962Smm return (0); 2599209962Smm} 2600209962Smm 2601209962Smmstatic int 2602209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2603209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2604209962Smm{ 2605209962Smm int err; 2606209962Smm zfs_cmd_t zc = { 0 }; 2607209962Smm 2608228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2609209962Smm 2610209962Smm err = userquota_propname_decode(propname, 2611209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2612209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2613209962Smm zc.zc_objset_type = *typep; 2614209962Smm if (err) 2615209962Smm return (err); 2616209962Smm 2617209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2618209962Smm if (err) 2619209962Smm return (err); 2620209962Smm 2621209962Smm *propvalue = zc.zc_cookie; 2622209962Smm return (0); 2623209962Smm} 2624209962Smm 2625209962Smmint 2626209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2627209962Smm uint64_t *propvalue) 2628209962Smm{ 2629209962Smm zfs_userquota_prop_t type; 2630209962Smm 2631209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2632209962Smm &type)); 2633209962Smm} 2634209962Smm 2635209962Smmint 2636209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2637209962Smm char *propbuf, int proplen, boolean_t literal) 2638209962Smm{ 2639209962Smm int err; 2640209962Smm uint64_t propvalue; 2641209962Smm zfs_userquota_prop_t type; 2642209962Smm 2643209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2644209962Smm &type); 2645209962Smm 2646209962Smm if (err) 2647209962Smm return (err); 2648209962Smm 2649209962Smm if (literal) { 2650209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2651209962Smm } else if (propvalue == 0 && 2652209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2653209962Smm (void) strlcpy(propbuf, "none", proplen); 2654209962Smm } else { 2655209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2656209962Smm } 2657209962Smm return (0); 2658209962Smm} 2659209962Smm 2660228103Smmint 2661228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2662228103Smm uint64_t *propvalue) 2663168404Spjd{ 2664228103Smm int err; 2665228103Smm zfs_cmd_t zc = { 0 }; 2666228103Smm const char *snapname; 2667168404Spjd 2668228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2669168404Spjd 2670228103Smm snapname = strchr(propname, '@') + 1; 2671228103Smm if (strchr(snapname, '@')) { 2672228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2673228103Smm } else { 2674228103Smm /* snapname is the short name, append it to zhp's fsname */ 2675228103Smm char *cp; 2676209962Smm 2677228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2678228103Smm sizeof (zc.zc_value)); 2679228103Smm cp = strchr(zc.zc_value, '@'); 2680228103Smm if (cp != NULL) 2681228103Smm *cp = '\0'; 2682228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2683228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2684228103Smm } 2685209962Smm 2686228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2687228103Smm if (err) 2688228103Smm return (err); 2689228103Smm 2690228103Smm *propvalue = zc.zc_cookie; 2691228103Smm return (0); 2692209962Smm} 2693209962Smm 2694168404Spjdint 2695228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2696228103Smm char *propbuf, int proplen, boolean_t literal) 2697168404Spjd{ 2698228103Smm int err; 2699228103Smm uint64_t propvalue; 2700168404Spjd 2701228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2702185029Spjd 2703228103Smm if (err) 2704228103Smm return (err); 2705209962Smm 2706228103Smm if (literal) { 2707228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2708228103Smm } else { 2709228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2710168404Spjd } 2711228103Smm return (0); 2712168404Spjd} 2713168404Spjd 2714168404Spjdint 2715228103Smmzfs_get_snapused_int(zfs_handle_t *firstsnap, zfs_handle_t *lastsnap, 2716228103Smm uint64_t *usedp) 2717168404Spjd{ 2718228103Smm int err; 2719168404Spjd zfs_cmd_t zc = { 0 }; 2720168404Spjd 2721228103Smm (void) strlcpy(zc.zc_name, lastsnap->zfs_name, sizeof (zc.zc_name)); 2722228103Smm (void) strlcpy(zc.zc_value, firstsnap->zfs_name, sizeof (zc.zc_value)); 2723185029Spjd 2724228103Smm err = ioctl(lastsnap->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_SNAPS, &zc); 2725228103Smm if (err) 2726228103Smm return (err); 2727168404Spjd 2728228103Smm *usedp = zc.zc_cookie; 2729209962Smm 2730228103Smm return (0); 2731168404Spjd} 2732168404Spjd 2733168404Spjd/* 2734228103Smm * Returns the name of the given zfs handle. 2735168404Spjd */ 2736228103Smmconst char * 2737228103Smmzfs_get_name(const zfs_handle_t *zhp) 2738168404Spjd{ 2739228103Smm return (zhp->zfs_name); 2740228103Smm} 2741168404Spjd 2742228103Smm/* 2743228103Smm * Returns the type of the given zfs handle. 2744228103Smm */ 2745228103Smmzfs_type_t 2746228103Smmzfs_get_type(const zfs_handle_t *zhp) 2747228103Smm{ 2748228103Smm return (zhp->zfs_type); 2749168404Spjd} 2750168404Spjd 2751168404Spjd/* 2752219089Spjd * Is one dataset name a child dataset of another? 2753219089Spjd * 2754219089Spjd * Needs to handle these cases: 2755219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2756219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2757219089Spjd * Descendant? No. No. No. Yes. 2758219089Spjd */ 2759219089Spjdstatic boolean_t 2760219089Spjdis_descendant(const char *ds1, const char *ds2) 2761219089Spjd{ 2762219089Spjd size_t d1len = strlen(ds1); 2763219089Spjd 2764219089Spjd /* ds2 can't be a descendant if it's smaller */ 2765219089Spjd if (strlen(ds2) < d1len) 2766219089Spjd return (B_FALSE); 2767219089Spjd 2768219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2769219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2770219089Spjd} 2771219089Spjd 2772219089Spjd/* 2773168404Spjd * Given a complete name, return just the portion that refers to the parent. 2774228103Smm * Will return -1 if there is no parent (path is just the name of the 2775228103Smm * pool). 2776168404Spjd */ 2777168404Spjdstatic int 2778168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2779168404Spjd{ 2780228103Smm char *slashp; 2781168404Spjd 2782228103Smm (void) strlcpy(buf, path, buflen); 2783228103Smm 2784228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 2785168404Spjd return (-1); 2786228103Smm *slashp = '\0'; 2787168404Spjd 2788168404Spjd return (0); 2789168404Spjd} 2790168404Spjd 2791168404Spjd/* 2792185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 2793185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 2794185029Spjd * closest existing ancestor for the given path. In prefixlen return the 2795185029Spjd * length of already existing prefix of the given path. We also fetch the 2796185029Spjd * 'zoned' property, which is used to validate property settings when creating 2797185029Spjd * new datasets. 2798168404Spjd */ 2799168404Spjdstatic int 2800185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 2801185029Spjd boolean_t accept_ancestor, int *prefixlen) 2802168404Spjd{ 2803168404Spjd zfs_cmd_t zc = { 0 }; 2804168404Spjd char parent[ZFS_MAXNAMELEN]; 2805168404Spjd char *slash; 2806168404Spjd zfs_handle_t *zhp; 2807168404Spjd char errbuf[1024]; 2808219089Spjd uint64_t is_zoned; 2809168404Spjd 2810209962Smm (void) snprintf(errbuf, sizeof (errbuf), 2811209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 2812168404Spjd 2813168404Spjd /* get parent, and check to see if this is just a pool */ 2814168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 2815168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2816168404Spjd "missing dataset name")); 2817168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2818168404Spjd } 2819168404Spjd 2820168404Spjd /* check to see if the pool exists */ 2821168404Spjd if ((slash = strchr(parent, '/')) == NULL) 2822168404Spjd slash = parent + strlen(parent); 2823168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 2824168404Spjd zc.zc_name[slash - parent] = '\0'; 2825168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 2826168404Spjd errno == ENOENT) { 2827168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2828168404Spjd "no such pool '%s'"), zc.zc_name); 2829168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2830168404Spjd } 2831168404Spjd 2832168404Spjd /* check to see if the parent dataset exists */ 2833185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 2834185029Spjd if (errno == ENOENT && accept_ancestor) { 2835185029Spjd /* 2836185029Spjd * Go deeper to find an ancestor, give up on top level. 2837185029Spjd */ 2838185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 2839185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2840185029Spjd "no such pool '%s'"), zc.zc_name); 2841185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2842185029Spjd } 2843185029Spjd } else if (errno == ENOENT) { 2844168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2845168404Spjd "parent does not exist")); 2846168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2847185029Spjd } else 2848168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 2849168404Spjd } 2850168404Spjd 2851219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 2852219089Spjd if (zoned != NULL) 2853219089Spjd *zoned = is_zoned; 2854219089Spjd 2855168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 2856219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 2857168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 2858168404Spjd zfs_close(zhp); 2859168404Spjd return (-1); 2860168404Spjd } 2861168404Spjd 2862168404Spjd /* make sure parent is a filesystem */ 2863168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 2864168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2865168404Spjd "parent is not a filesystem")); 2866168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 2867168404Spjd zfs_close(zhp); 2868168404Spjd return (-1); 2869168404Spjd } 2870168404Spjd 2871168404Spjd zfs_close(zhp); 2872185029Spjd if (prefixlen != NULL) 2873185029Spjd *prefixlen = strlen(parent); 2874168404Spjd return (0); 2875168404Spjd} 2876168404Spjd 2877168404Spjd/* 2878185029Spjd * Finds whether the dataset of the given type(s) exists. 2879185029Spjd */ 2880185029Spjdboolean_t 2881185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 2882185029Spjd{ 2883185029Spjd zfs_handle_t *zhp; 2884185029Spjd 2885185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 2886185029Spjd return (B_FALSE); 2887185029Spjd 2888185029Spjd /* 2889185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 2890185029Spjd */ 2891185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 2892185029Spjd int ds_type = zhp->zfs_type; 2893185029Spjd 2894185029Spjd zfs_close(zhp); 2895185029Spjd if (types & ds_type) 2896185029Spjd return (B_TRUE); 2897185029Spjd } 2898185029Spjd return (B_FALSE); 2899185029Spjd} 2900185029Spjd 2901185029Spjd/* 2902185029Spjd * Given a path to 'target', create all the ancestors between 2903185029Spjd * the prefixlen portion of the path, and the target itself. 2904185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 2905185029Spjd */ 2906185029Spjdint 2907185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 2908185029Spjd{ 2909185029Spjd zfs_handle_t *h; 2910185029Spjd char *cp; 2911185029Spjd const char *opname; 2912185029Spjd 2913185029Spjd /* make sure prefix exists */ 2914185029Spjd cp = target + prefixlen; 2915185029Spjd if (*cp != '/') { 2916185029Spjd assert(strchr(cp, '/') == NULL); 2917185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2918185029Spjd } else { 2919185029Spjd *cp = '\0'; 2920185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2921185029Spjd *cp = '/'; 2922185029Spjd } 2923185029Spjd if (h == NULL) 2924185029Spjd return (-1); 2925185029Spjd zfs_close(h); 2926185029Spjd 2927185029Spjd /* 2928185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 2929185029Spjd * up to the prefixlen-long one. 2930185029Spjd */ 2931185029Spjd for (cp = target + prefixlen + 1; 2932185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 2933185029Spjd char *logstr; 2934185029Spjd 2935185029Spjd *cp = '\0'; 2936185029Spjd 2937185029Spjd h = make_dataset_handle(hdl, target); 2938185029Spjd if (h) { 2939185029Spjd /* it already exists, nothing to do here */ 2940185029Spjd zfs_close(h); 2941185029Spjd continue; 2942185029Spjd } 2943185029Spjd 2944185029Spjd logstr = hdl->libzfs_log_str; 2945185029Spjd hdl->libzfs_log_str = NULL; 2946185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 2947185029Spjd NULL) != 0) { 2948185029Spjd hdl->libzfs_log_str = logstr; 2949185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 2950185029Spjd goto ancestorerr; 2951185029Spjd } 2952185029Spjd 2953185029Spjd hdl->libzfs_log_str = logstr; 2954185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2955185029Spjd if (h == NULL) { 2956185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 2957185029Spjd goto ancestorerr; 2958185029Spjd } 2959185029Spjd 2960185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 2961185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 2962185029Spjd goto ancestorerr; 2963185029Spjd } 2964185029Spjd 2965185029Spjd if (zfs_share(h) != 0) { 2966185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 2967185029Spjd goto ancestorerr; 2968185029Spjd } 2969185029Spjd 2970185029Spjd zfs_close(h); 2971185029Spjd } 2972185029Spjd 2973185029Spjd return (0); 2974185029Spjd 2975185029Spjdancestorerr: 2976185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2977185029Spjd "failed to %s ancestor '%s'"), opname, target); 2978185029Spjd return (-1); 2979185029Spjd} 2980185029Spjd 2981185029Spjd/* 2982185029Spjd * Creates non-existing ancestors of the given path. 2983185029Spjd */ 2984185029Spjdint 2985185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 2986185029Spjd{ 2987185029Spjd int prefix; 2988185029Spjd char *path_copy; 2989185029Spjd int rc; 2990185029Spjd 2991219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 2992185029Spjd return (-1); 2993185029Spjd 2994185029Spjd if ((path_copy = strdup(path)) != NULL) { 2995185029Spjd rc = create_parents(hdl, path_copy, prefix); 2996185029Spjd free(path_copy); 2997185029Spjd } 2998185029Spjd if (path_copy == NULL || rc != 0) 2999185029Spjd return (-1); 3000185029Spjd 3001185029Spjd return (0); 3002185029Spjd} 3003185029Spjd 3004185029Spjd/* 3005168404Spjd * Create a new filesystem or volume. 3006168404Spjd */ 3007168404Spjdint 3008168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3009168404Spjd nvlist_t *props) 3010168404Spjd{ 3011168404Spjd zfs_cmd_t zc = { 0 }; 3012168404Spjd int ret; 3013168404Spjd uint64_t size = 0; 3014168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3015168404Spjd char errbuf[1024]; 3016168404Spjd uint64_t zoned; 3017168404Spjd 3018168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3019168404Spjd "cannot create '%s'"), path); 3020168404Spjd 3021168404Spjd /* validate the path, taking care to note the extended error message */ 3022185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3023168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3024168404Spjd 3025168404Spjd /* validate parents exist */ 3026185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3027168404Spjd return (-1); 3028168404Spjd 3029168404Spjd /* 3030168404Spjd * The failure modes when creating a dataset of a different type over 3031168404Spjd * one that already exists is a little strange. In particular, if you 3032168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3033168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3034168404Spjd * first try to see if the dataset exists. 3035168404Spjd */ 3036168404Spjd (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name)); 3037185029Spjd if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { 3038168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3039168404Spjd "dataset already exists")); 3040168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3041168404Spjd } 3042168404Spjd 3043168404Spjd if (type == ZFS_TYPE_VOLUME) 3044168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3045168404Spjd else 3046168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3047168404Spjd 3048185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3049168404Spjd zoned, NULL, errbuf)) == 0) 3050168404Spjd return (-1); 3051168404Spjd 3052168404Spjd if (type == ZFS_TYPE_VOLUME) { 3053168404Spjd /* 3054168404Spjd * If we are creating a volume, the size and block size must 3055168404Spjd * satisfy a few restraints. First, the blocksize must be a 3056168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3057168404Spjd * volsize must be a multiple of the block size, and cannot be 3058168404Spjd * zero. 3059168404Spjd */ 3060168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3061168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3062168404Spjd nvlist_free(props); 3063168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3064168404Spjd "missing volume size")); 3065168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3066168404Spjd } 3067168404Spjd 3068168404Spjd if ((ret = nvlist_lookup_uint64(props, 3069168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3070168404Spjd &blocksize)) != 0) { 3071168404Spjd if (ret == ENOENT) { 3072168404Spjd blocksize = zfs_prop_default_numeric( 3073168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3074168404Spjd } else { 3075168404Spjd nvlist_free(props); 3076168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3077168404Spjd "missing volume block size")); 3078168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3079168404Spjd } 3080168404Spjd } 3081168404Spjd 3082168404Spjd if (size == 0) { 3083168404Spjd nvlist_free(props); 3084168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3085168404Spjd "volume size cannot be zero")); 3086168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3087168404Spjd } 3088168404Spjd 3089168404Spjd if (size % blocksize != 0) { 3090168404Spjd nvlist_free(props); 3091168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3092168404Spjd "volume size must be a multiple of volume block " 3093168404Spjd "size")); 3094168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3095168404Spjd } 3096168404Spjd } 3097168404Spjd 3098185029Spjd if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0) 3099168404Spjd return (-1); 3100168404Spjd nvlist_free(props); 3101168404Spjd 3102168404Spjd /* create the dataset */ 3103185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); 3104168404Spjd 3105168404Spjd zcmd_free_nvlists(&zc); 3106168404Spjd 3107168404Spjd /* check for failure */ 3108168404Spjd if (ret != 0) { 3109168404Spjd char parent[ZFS_MAXNAMELEN]; 3110168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3111168404Spjd 3112168404Spjd switch (errno) { 3113168404Spjd case ENOENT: 3114168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3115168404Spjd "no such parent '%s'"), parent); 3116168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3117168404Spjd 3118168404Spjd case EINVAL: 3119168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3120168404Spjd "parent '%s' is not a filesystem"), parent); 3121168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3122168404Spjd 3123168404Spjd case EDOM: 3124168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3125168404Spjd "volume block size must be power of 2 from " 3126168404Spjd "%u to %uk"), 3127168404Spjd (uint_t)SPA_MINBLOCKSIZE, 3128168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 3129168404Spjd 3130168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3131168404Spjd 3132185029Spjd case ENOTSUP: 3133185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3134185029Spjd "pool must be upgraded to set this " 3135185029Spjd "property or value")); 3136185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3137168404Spjd#ifdef _ILP32 3138168404Spjd case EOVERFLOW: 3139168404Spjd /* 3140168404Spjd * This platform can't address a volume this big. 3141168404Spjd */ 3142168404Spjd if (type == ZFS_TYPE_VOLUME) 3143168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3144168404Spjd errbuf)); 3145168404Spjd#endif 3146168404Spjd /* FALLTHROUGH */ 3147168404Spjd default: 3148168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3149168404Spjd } 3150168404Spjd } 3151168404Spjd 3152168404Spjd return (0); 3153168404Spjd} 3154168404Spjd 3155168404Spjd/* 3156168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3157238422Smm * isn't mounted, and that there are no active dependents. If the file system 3158238422Smm * does not exist this function does nothing. 3159168404Spjd */ 3160168404Spjdint 3161219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3162168404Spjd{ 3163168404Spjd zfs_cmd_t zc = { 0 }; 3164168404Spjd 3165168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3166168404Spjd 3167168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3168168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3169168404Spjd } else { 3170168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3171168404Spjd } 3172168404Spjd 3173219089Spjd zc.zc_defer_destroy = defer; 3174238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3175238422Smm errno != ENOENT) { 3176168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3177168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3178168404Spjd zhp->zfs_name)); 3179168404Spjd } 3180168404Spjd 3181168404Spjd remove_mountpoint(zhp); 3182168404Spjd 3183168404Spjd return (0); 3184168404Spjd} 3185168404Spjd 3186168404Spjdstruct destroydata { 3187228103Smm nvlist_t *nvl; 3188228103Smm const char *snapname; 3189168404Spjd}; 3190168404Spjd 3191168404Spjdstatic int 3192219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3193168404Spjd{ 3194168404Spjd struct destroydata *dd = arg; 3195168404Spjd zfs_handle_t *szhp; 3196168404Spjd char name[ZFS_MAXNAMELEN]; 3197219089Spjd int rv = 0; 3198168404Spjd 3199228103Smm (void) snprintf(name, sizeof (name), 3200228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3201168404Spjd 3202168404Spjd szhp = make_dataset_handle(zhp->zfs_hdl, name); 3203168404Spjd if (szhp) { 3204228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3205168404Spjd zfs_close(szhp); 3206168404Spjd } 3207168404Spjd 3208228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3209228103Smm zfs_close(zhp); 3210168404Spjd return (rv); 3211168404Spjd} 3212168404Spjd 3213168404Spjd/* 3214168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3215168404Spjd */ 3216168404Spjdint 3217219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3218168404Spjd{ 3219168404Spjd int ret; 3220168404Spjd struct destroydata dd = { 0 }; 3221168404Spjd 3222168404Spjd dd.snapname = snapname; 3223228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3224228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3225168404Spjd 3226228103Smm if (nvlist_next_nvpair(dd.nvl, NULL) == NULL) { 3227228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3228168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3229228103Smm zhp->zfs_name, snapname); 3230228103Smm } else { 3231228103Smm ret = zfs_destroy_snaps_nvl(zhp, dd.nvl, defer); 3232168404Spjd } 3233228103Smm nvlist_free(dd.nvl); 3234228103Smm return (ret); 3235228103Smm} 3236168404Spjd 3237228103Smm/* 3238228103Smm * Destroys all the snapshots named in the nvlist. They must be underneath 3239228103Smm * the zhp (either snapshots of it, or snapshots of its descendants). 3240228103Smm */ 3241228103Smmint 3242228103Smmzfs_destroy_snaps_nvl(zfs_handle_t *zhp, nvlist_t *snaps, boolean_t defer) 3243228103Smm{ 3244228103Smm int ret; 3245228103Smm zfs_cmd_t zc = { 0 }; 3246228103Smm 3247168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3248228103Smm if (zcmd_write_src_nvlist(zhp->zfs_hdl, &zc, snaps) != 0) 3249228103Smm return (-1); 3250219089Spjd zc.zc_defer_destroy = defer; 3251168404Spjd 3252228103Smm ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS_NVL, &zc); 3253168404Spjd if (ret != 0) { 3254168404Spjd char errbuf[1024]; 3255168404Spjd 3256168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3257228103Smm "cannot destroy snapshots in %s"), zc.zc_name); 3258168404Spjd 3259168404Spjd switch (errno) { 3260168404Spjd case EEXIST: 3261168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3262168404Spjd "snapshot is cloned")); 3263168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf)); 3264168404Spjd 3265168404Spjd default: 3266168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3267168404Spjd errbuf)); 3268168404Spjd } 3269168404Spjd } 3270168404Spjd 3271168404Spjd return (0); 3272168404Spjd} 3273168404Spjd 3274168404Spjd/* 3275168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3276168404Spjd */ 3277168404Spjdint 3278168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3279168404Spjd{ 3280168404Spjd zfs_cmd_t zc = { 0 }; 3281168404Spjd char parent[ZFS_MAXNAMELEN]; 3282168404Spjd int ret; 3283168404Spjd char errbuf[1024]; 3284168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3285168404Spjd zfs_type_t type; 3286168404Spjd uint64_t zoned; 3287168404Spjd 3288168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3289168404Spjd 3290168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3291168404Spjd "cannot create '%s'"), target); 3292168404Spjd 3293228103Smm /* validate the target/clone name */ 3294185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3295168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3296168404Spjd 3297168404Spjd /* validate parents exist */ 3298185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3299168404Spjd return (-1); 3300168404Spjd 3301168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3302168404Spjd 3303168404Spjd /* do the clone */ 3304168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3305168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3306168404Spjd type = ZFS_TYPE_VOLUME; 3307168404Spjd } else { 3308168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3309168404Spjd type = ZFS_TYPE_FILESYSTEM; 3310168404Spjd } 3311168404Spjd 3312168404Spjd if (props) { 3313185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3314185029Spjd zhp, errbuf)) == NULL) 3315168404Spjd return (-1); 3316168404Spjd 3317185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 3318168404Spjd nvlist_free(props); 3319168404Spjd return (-1); 3320168404Spjd } 3321168404Spjd 3322168404Spjd nvlist_free(props); 3323168404Spjd } 3324168404Spjd 3325168404Spjd (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name)); 3326168404Spjd (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value)); 3327185029Spjd ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc); 3328168404Spjd 3329168404Spjd zcmd_free_nvlists(&zc); 3330168404Spjd 3331168404Spjd if (ret != 0) { 3332168404Spjd switch (errno) { 3333168404Spjd 3334168404Spjd case ENOENT: 3335168404Spjd /* 3336168404Spjd * The parent doesn't exist. We should have caught this 3337168404Spjd * above, but there may a race condition that has since 3338168404Spjd * destroyed the parent. 3339168404Spjd * 3340168404Spjd * At this point, we don't know whether it's the source 3341168404Spjd * that doesn't exist anymore, or whether the target 3342168404Spjd * dataset doesn't exist. 3343168404Spjd */ 3344168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3345168404Spjd "no such parent '%s'"), parent); 3346168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3347168404Spjd 3348168404Spjd case EXDEV: 3349168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3350168404Spjd "source and target pools differ")); 3351168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3352168404Spjd errbuf)); 3353168404Spjd 3354168404Spjd default: 3355168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3356168404Spjd errbuf)); 3357168404Spjd } 3358168404Spjd } 3359168404Spjd 3360168404Spjd return (ret); 3361168404Spjd} 3362168404Spjd 3363168404Spjd/* 3364168404Spjd * Promotes the given clone fs to be the clone parent. 3365168404Spjd */ 3366168404Spjdint 3367168404Spjdzfs_promote(zfs_handle_t *zhp) 3368168404Spjd{ 3369168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3370168404Spjd zfs_cmd_t zc = { 0 }; 3371168404Spjd char parent[MAXPATHLEN]; 3372168404Spjd int ret; 3373168404Spjd char errbuf[1024]; 3374168404Spjd 3375168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3376168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3377168404Spjd 3378168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3379168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3380168404Spjd "snapshots can not be promoted")); 3381168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3382168404Spjd } 3383168404Spjd 3384185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3385168404Spjd if (parent[0] == '\0') { 3386168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3387168404Spjd "not a cloned filesystem")); 3388168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3389168404Spjd } 3390168404Spjd 3391185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3392168404Spjd sizeof (zc.zc_value)); 3393168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3394185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3395168404Spjd 3396168404Spjd if (ret != 0) { 3397168404Spjd int save_errno = errno; 3398168404Spjd 3399168404Spjd switch (save_errno) { 3400168404Spjd case EEXIST: 3401219089Spjd /* There is a conflicting snapshot name. */ 3402168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3403219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3404219089Spjd zc.zc_string, parent); 3405168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3406168404Spjd 3407168404Spjd default: 3408168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3409168404Spjd } 3410168404Spjd } 3411168404Spjd return (ret); 3412168404Spjd} 3413168404Spjd 3414168404Spjd/* 3415168404Spjd * Takes a snapshot of the given dataset. 3416168404Spjd */ 3417168404Spjdint 3418185029Spjdzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3419185029Spjd nvlist_t *props) 3420168404Spjd{ 3421168404Spjd const char *delim; 3422185029Spjd char parent[ZFS_MAXNAMELEN]; 3423168404Spjd zfs_handle_t *zhp; 3424168404Spjd zfs_cmd_t zc = { 0 }; 3425168404Spjd int ret; 3426168404Spjd char errbuf[1024]; 3427168404Spjd 3428168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3429168404Spjd "cannot snapshot '%s'"), path); 3430168404Spjd 3431168404Spjd /* validate the target name */ 3432185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3433168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3434168404Spjd 3435185029Spjd if (props) { 3436185029Spjd if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3437185029Spjd props, B_FALSE, NULL, errbuf)) == NULL) 3438185029Spjd return (-1); 3439185029Spjd 3440185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 3441185029Spjd nvlist_free(props); 3442185029Spjd return (-1); 3443185029Spjd } 3444185029Spjd 3445185029Spjd nvlist_free(props); 3446185029Spjd } 3447185029Spjd 3448168404Spjd /* make sure the parent exists and is of the appropriate type */ 3449168404Spjd delim = strchr(path, '@'); 3450168404Spjd (void) strncpy(parent, path, delim - path); 3451168404Spjd parent[delim - path] = '\0'; 3452168404Spjd 3453168404Spjd if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM | 3454168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3455185029Spjd zcmd_free_nvlists(&zc); 3456168404Spjd return (-1); 3457168404Spjd } 3458168404Spjd 3459168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3460168404Spjd (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value)); 3461185029Spjd if (ZFS_IS_VOLUME(zhp)) 3462185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3463185029Spjd else 3464185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3465168404Spjd zc.zc_cookie = recursive; 3466185029Spjd ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc); 3467168404Spjd 3468185029Spjd zcmd_free_nvlists(&zc); 3469185029Spjd 3470168404Spjd /* 3471168404Spjd * if it was recursive, the one that actually failed will be in 3472168404Spjd * zc.zc_name. 3473168404Spjd */ 3474219089Spjd if (ret != 0) { 3475185029Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3476185029Spjd "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); 3477219089Spjd (void) zfs_standard_error(hdl, errno, errbuf); 3478168404Spjd } 3479168404Spjd 3480168404Spjd zfs_close(zhp); 3481168404Spjd 3482168404Spjd return (ret); 3483168404Spjd} 3484168404Spjd 3485168404Spjd/* 3486168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3487168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3488168404Spjd * is a dependent and we should just destroy it without checking the transaction 3489168404Spjd * group. 3490168404Spjd */ 3491168404Spjdtypedef struct rollback_data { 3492168404Spjd const char *cb_target; /* the snapshot */ 3493168404Spjd uint64_t cb_create; /* creation time reference */ 3494185029Spjd boolean_t cb_error; 3495168404Spjd boolean_t cb_dependent; 3496185029Spjd boolean_t cb_force; 3497168404Spjd} rollback_data_t; 3498168404Spjd 3499168404Spjdstatic int 3500168404Spjdrollback_destroy(zfs_handle_t *zhp, void *data) 3501168404Spjd{ 3502168404Spjd rollback_data_t *cbp = data; 3503168404Spjd 3504168404Spjd if (!cbp->cb_dependent) { 3505168404Spjd if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && 3506168404Spjd zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3507168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3508168404Spjd cbp->cb_create) { 3509185029Spjd char *logstr; 3510168404Spjd 3511168404Spjd cbp->cb_dependent = B_TRUE; 3512185029Spjd cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3513185029Spjd rollback_destroy, cbp); 3514168404Spjd cbp->cb_dependent = B_FALSE; 3515168404Spjd 3516185029Spjd logstr = zhp->zfs_hdl->libzfs_log_str; 3517185029Spjd zhp->zfs_hdl->libzfs_log_str = NULL; 3518219089Spjd cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3519185029Spjd zhp->zfs_hdl->libzfs_log_str = logstr; 3520168404Spjd } 3521168404Spjd } else { 3522185029Spjd /* We must destroy this clone; first unmount it */ 3523185029Spjd prop_changelist_t *clp; 3524185029Spjd 3525185029Spjd clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3526185029Spjd cbp->cb_force ? MS_FORCE: 0); 3527185029Spjd if (clp == NULL || changelist_prefix(clp) != 0) { 3528185029Spjd cbp->cb_error = B_TRUE; 3529185029Spjd zfs_close(zhp); 3530185029Spjd return (0); 3531185029Spjd } 3532219089Spjd if (zfs_destroy(zhp, B_FALSE) != 0) 3533185029Spjd cbp->cb_error = B_TRUE; 3534168404Spjd else 3535185029Spjd changelist_remove(clp, zhp->zfs_name); 3536185029Spjd (void) changelist_postfix(clp); 3537185029Spjd changelist_free(clp); 3538168404Spjd } 3539168404Spjd 3540168404Spjd zfs_close(zhp); 3541168404Spjd return (0); 3542168404Spjd} 3543168404Spjd 3544168404Spjd/* 3545168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3546168404Spjd * data changes since then and making it the active dataset. 3547168404Spjd * 3548168404Spjd * Any snapshots more recent than the target are destroyed, along with 3549168404Spjd * their dependents. 3550168404Spjd */ 3551168404Spjdint 3552185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3553168404Spjd{ 3554168404Spjd rollback_data_t cb = { 0 }; 3555185029Spjd int err; 3556185029Spjd zfs_cmd_t zc = { 0 }; 3557185029Spjd boolean_t restore_resv = 0; 3558185029Spjd uint64_t old_volsize, new_volsize; 3559185029Spjd zfs_prop_t resv_prop; 3560168404Spjd 3561185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3562185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3563168404Spjd 3564168404Spjd /* 3565239774Smm * Destroy all recent snapshots and their dependents. 3566168404Spjd */ 3567185029Spjd cb.cb_force = force; 3568168404Spjd cb.cb_target = snap->zfs_name; 3569168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3570168404Spjd (void) zfs_iter_children(zhp, rollback_destroy, &cb); 3571168404Spjd 3572185029Spjd if (cb.cb_error) 3573185029Spjd return (-1); 3574168404Spjd 3575168404Spjd /* 3576168404Spjd * Now that we have verified that the snapshot is the latest, 3577168404Spjd * rollback to the given snapshot. 3578168404Spjd */ 3579168404Spjd 3580185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3581185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3582185029Spjd return (-1); 3583185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3584185029Spjd restore_resv = 3585185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3586168404Spjd } 3587168404Spjd 3588185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3589185029Spjd 3590185029Spjd if (ZFS_IS_VOLUME(zhp)) 3591185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3592185029Spjd else 3593185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3594185029Spjd 3595168404Spjd /* 3596185029Spjd * We rely on zfs_iter_children() to verify that there are no 3597185029Spjd * newer snapshots for the given dataset. Therefore, we can 3598185029Spjd * simply pass the name on to the ioctl() call. There is still 3599185029Spjd * an unlikely race condition where the user has taken a 3600185029Spjd * snapshot since we verified that this was the most recent. 3601185029Spjd * 3602168404Spjd */ 3603185029Spjd if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { 3604185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3605185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3606185029Spjd zhp->zfs_name); 3607185029Spjd return (err); 3608185029Spjd } 3609168404Spjd 3610185029Spjd /* 3611185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3612185029Spjd * rollback reservation and the volsize has changed then set 3613185029Spjd * the reservation property to the post-rollback volsize. 3614185029Spjd * Make a new handle since the rollback closed the dataset. 3615185029Spjd */ 3616185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3617185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3618185029Spjd if (restore_resv) { 3619185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3620185029Spjd if (old_volsize != new_volsize) 3621185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3622185029Spjd new_volsize); 3623185029Spjd } 3624185029Spjd zfs_close(zhp); 3625185029Spjd } 3626185029Spjd return (err); 3627168404Spjd} 3628168404Spjd 3629168404Spjd/* 3630168404Spjd * Renames the given dataset. 3631168404Spjd */ 3632168404Spjdint 3633240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3634240870Spjd renameflags_t flags) 3635168404Spjd{ 3636168404Spjd int ret; 3637168404Spjd zfs_cmd_t zc = { 0 }; 3638168404Spjd char *delim; 3639168676Spjd prop_changelist_t *cl = NULL; 3640168676Spjd zfs_handle_t *zhrp = NULL; 3641168676Spjd char *parentname = NULL; 3642168404Spjd char parent[ZFS_MAXNAMELEN]; 3643226676Spjd char property[ZFS_MAXPROPLEN]; 3644168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3645168404Spjd char errbuf[1024]; 3646168404Spjd 3647168404Spjd /* if we have the same exact name, just return success */ 3648168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3649168404Spjd return (0); 3650168404Spjd 3651168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3652168404Spjd "cannot rename to '%s'"), target); 3653168404Spjd 3654240870Spjd if (source != NULL) { 3655240870Spjd /* 3656240870Spjd * This is recursive snapshots rename, put snapshot name 3657240870Spjd * (that might not exist) into zfs_name. 3658240870Spjd */ 3659240870Spjd assert(flags.recurse); 3660240870Spjd 3661240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3662240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3663240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3664240870Spjd } 3665240870Spjd 3666168404Spjd /* 3667168404Spjd * Make sure the target name is valid 3668168404Spjd */ 3669168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3670168404Spjd if ((strchr(target, '@') == NULL) || 3671168404Spjd *target == '@') { 3672168404Spjd /* 3673168404Spjd * Snapshot target name is abbreviated, 3674168404Spjd * reconstruct full dataset name 3675168404Spjd */ 3676168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3677168404Spjd sizeof (parent)); 3678168404Spjd delim = strchr(parent, '@'); 3679168404Spjd if (strchr(target, '@') == NULL) 3680168404Spjd *(++delim) = '\0'; 3681168404Spjd else 3682168404Spjd *delim = '\0'; 3683168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3684168404Spjd target = parent; 3685168404Spjd } else { 3686168404Spjd /* 3687168404Spjd * Make sure we're renaming within the same dataset. 3688168404Spjd */ 3689168404Spjd delim = strchr(target, '@'); 3690168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3691168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3692168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3693168404Spjd "snapshots must be part of same " 3694168404Spjd "dataset")); 3695168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3696168404Spjd errbuf)); 3697168404Spjd } 3698168404Spjd } 3699185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3700168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3701168404Spjd } else { 3702226705Spjd if (flags.recurse) { 3703168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3704168676Spjd "recursive rename must be a snapshot")); 3705168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3706168676Spjd } 3707168676Spjd 3708185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3709168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3710168404Spjd 3711168404Spjd /* validate parents */ 3712219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3713168404Spjd return (-1); 3714168404Spjd 3715168404Spjd /* make sure we're in the same pool */ 3716168404Spjd verify((delim = strchr(target, '/')) != NULL); 3717168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3718168404Spjd zhp->zfs_name[delim - target] != '/') { 3719168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3720168404Spjd "datasets must be within same pool")); 3721168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3722168404Spjd } 3723168404Spjd 3724168404Spjd /* new name cannot be a child of the current dataset name */ 3725219089Spjd if (is_descendant(zhp->zfs_name, target)) { 3726168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3727219089Spjd "New dataset name cannot be a descendant of " 3728168404Spjd "current dataset name")); 3729168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3730168404Spjd } 3731168404Spjd } 3732168404Spjd 3733168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 3734168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 3735168404Spjd 3736168404Spjd if (getzoneid() == GLOBAL_ZONEID && 3737168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 3738168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3739168404Spjd "dataset is used in a non-global zone")); 3740168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 3741168404Spjd } 3742168404Spjd 3743226705Spjd /* 3744226705Spjd * Avoid unmounting file systems with mountpoint property set to 3745226705Spjd * 'legacy' or 'none' even if -u option is not given. 3746226705Spjd */ 3747226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 3748226705Spjd !flags.recurse && !flags.nounmount && 3749226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 3750226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 3751226705Spjd (strcmp(property, "legacy") == 0 || 3752226705Spjd strcmp(property, "none") == 0)) { 3753226705Spjd flags.nounmount = B_TRUE; 3754226705Spjd } 3755168404Spjd 3756226705Spjd if (flags.recurse) { 3757226705Spjd 3758185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 3759185029Spjd if (parentname == NULL) { 3760185029Spjd ret = -1; 3761185029Spjd goto error; 3762185029Spjd } 3763168676Spjd delim = strchr(parentname, '@'); 3764168676Spjd *delim = '\0'; 3765185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 3766168676Spjd if (zhrp == NULL) { 3767185029Spjd ret = -1; 3768185029Spjd goto error; 3769168676Spjd } 3770168676Spjd 3771168676Spjd } else { 3772226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 3773235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 3774235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 3775168676Spjd return (-1); 3776226676Spjd } 3777168676Spjd 3778168676Spjd if (changelist_haszonedchild(cl)) { 3779168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3780168676Spjd "child dataset with inherited mountpoint is used " 3781168676Spjd "in a non-global zone")); 3782168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 3783168676Spjd goto error; 3784168676Spjd } 3785168676Spjd 3786168676Spjd if ((ret = changelist_prefix(cl)) != 0) 3787168676Spjd goto error; 3788168404Spjd } 3789168404Spjd 3790168404Spjd if (ZFS_IS_VOLUME(zhp)) 3791168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3792168404Spjd else 3793168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3794168404Spjd 3795168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3796168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 3797168404Spjd 3798226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 3799226705Spjd if (flags.nounmount) 3800226676Spjd zc.zc_cookie |= 2; 3801168676Spjd 3802185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 3803168676Spjd /* 3804168676Spjd * if it was recursive, the one that actually failed will 3805168676Spjd * be in zc.zc_name 3806168676Spjd */ 3807168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3808185029Spjd "cannot rename '%s'"), zc.zc_name); 3809168404Spjd 3810226705Spjd if (flags.recurse && errno == EEXIST) { 3811168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3812168676Spjd "a child dataset already has a snapshot " 3813168676Spjd "with the new name")); 3814185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3815168676Spjd } else { 3816168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 3817168676Spjd } 3818168676Spjd 3819168404Spjd /* 3820168404Spjd * On failure, we still want to remount any filesystems that 3821168404Spjd * were previously mounted, so we don't alter the system state. 3822168404Spjd */ 3823226705Spjd if (!flags.recurse) 3824168676Spjd (void) changelist_postfix(cl); 3825168404Spjd } else { 3826226705Spjd if (!flags.recurse) { 3827168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 3828168676Spjd ret = changelist_postfix(cl); 3829168676Spjd } 3830168404Spjd } 3831168404Spjd 3832168404Spjderror: 3833168676Spjd if (parentname) { 3834168676Spjd free(parentname); 3835168676Spjd } 3836168676Spjd if (zhrp) { 3837168676Spjd zfs_close(zhrp); 3838168676Spjd } 3839168676Spjd if (cl) { 3840168676Spjd changelist_free(cl); 3841168676Spjd } 3842168404Spjd return (ret); 3843168404Spjd} 3844168404Spjd 3845219089Spjdnvlist_t * 3846219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 3847168404Spjd{ 3848219089Spjd return (zhp->zfs_user_props); 3849168676Spjd} 3850168676Spjd 3851168404Spjdnvlist_t * 3852219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 3853168404Spjd{ 3854219089Spjd if (zhp->zfs_recvd_props == NULL) 3855219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 3856219089Spjd return (NULL); 3857219089Spjd return (zhp->zfs_recvd_props); 3858168404Spjd} 3859168404Spjd 3860168404Spjd/* 3861168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 3862168404Spjd * display, and their maximum widths. This does two main things: 3863168404Spjd * 3864168404Spjd * - If this is a list of all properties, then expand the list to include 3865168404Spjd * all native properties, and set a flag so that for each dataset we look 3866168404Spjd * for new unique user properties and add them to the list. 3867168404Spjd * 3868168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 3869219089Spjd * so that we can size the column appropriately. If the user has 3870219089Spjd * requested received property values, we also need to compute the width 3871219089Spjd * of the RECEIVED column. 3872168404Spjd */ 3873168404Spjdint 3874219089Spjdzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) 3875168404Spjd{ 3876168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3877185029Spjd zprop_list_t *entry; 3878185029Spjd zprop_list_t **last, **start; 3879168404Spjd nvlist_t *userprops, *propval; 3880168404Spjd nvpair_t *elem; 3881168404Spjd char *strval; 3882168404Spjd char buf[ZFS_MAXPROPLEN]; 3883168404Spjd 3884185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 3885168404Spjd return (-1); 3886168404Spjd 3887168404Spjd userprops = zfs_get_user_props(zhp); 3888168404Spjd 3889168404Spjd entry = *plp; 3890168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 3891168404Spjd /* 3892168404Spjd * Go through and add any user properties as necessary. We 3893168404Spjd * start by incrementing our list pointer to the first 3894168404Spjd * non-native property. 3895168404Spjd */ 3896168404Spjd start = plp; 3897168404Spjd while (*start != NULL) { 3898185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 3899168404Spjd break; 3900168404Spjd start = &(*start)->pl_next; 3901168404Spjd } 3902168404Spjd 3903168404Spjd elem = NULL; 3904168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 3905168404Spjd /* 3906168404Spjd * See if we've already found this property in our list. 3907168404Spjd */ 3908168404Spjd for (last = start; *last != NULL; 3909168404Spjd last = &(*last)->pl_next) { 3910168404Spjd if (strcmp((*last)->pl_user_prop, 3911168404Spjd nvpair_name(elem)) == 0) 3912168404Spjd break; 3913168404Spjd } 3914168404Spjd 3915168404Spjd if (*last == NULL) { 3916168404Spjd if ((entry = zfs_alloc(hdl, 3917185029Spjd sizeof (zprop_list_t))) == NULL || 3918168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 3919168404Spjd nvpair_name(elem)))) == NULL) { 3920168404Spjd free(entry); 3921168404Spjd return (-1); 3922168404Spjd } 3923168404Spjd 3924185029Spjd entry->pl_prop = ZPROP_INVAL; 3925168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 3926168404Spjd entry->pl_all = B_TRUE; 3927168404Spjd *last = entry; 3928168404Spjd } 3929168404Spjd } 3930168404Spjd } 3931168404Spjd 3932168404Spjd /* 3933168404Spjd * Now go through and check the width of any non-fixed columns 3934168404Spjd */ 3935168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 3936168404Spjd if (entry->pl_fixed) 3937168404Spjd continue; 3938168404Spjd 3939185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 3940168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 3941168404Spjd buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { 3942168404Spjd if (strlen(buf) > entry->pl_width) 3943168404Spjd entry->pl_width = strlen(buf); 3944168404Spjd } 3945219089Spjd if (received && zfs_prop_get_recvd(zhp, 3946219089Spjd zfs_prop_to_name(entry->pl_prop), 3947219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3948219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3949219089Spjd entry->pl_recvd_width = strlen(buf); 3950219089Spjd } else { 3951219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 3952219089Spjd &propval) == 0) { 3953219089Spjd verify(nvlist_lookup_string(propval, 3954219089Spjd ZPROP_VALUE, &strval) == 0); 3955219089Spjd if (strlen(strval) > entry->pl_width) 3956219089Spjd entry->pl_width = strlen(strval); 3957219089Spjd } 3958219089Spjd if (received && zfs_prop_get_recvd(zhp, 3959219089Spjd entry->pl_user_prop, 3960219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3961219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3962219089Spjd entry->pl_recvd_width = strlen(buf); 3963168404Spjd } 3964168404Spjd } 3965168404Spjd 3966168404Spjd return (0); 3967168404Spjd} 3968168404Spjd 3969185029Spjdint 3970185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 3971209962Smm char *resource, void *export, void *sharetab, 3972209962Smm int sharemax, zfs_share_op_t operation) 3973185029Spjd{ 3974185029Spjd zfs_cmd_t zc = { 0 }; 3975185029Spjd int error; 3976185029Spjd 3977185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 3978185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 3979209962Smm if (resource) 3980209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 3981185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 3982185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 3983185029Spjd zc.zc_share.z_sharetype = operation; 3984185029Spjd zc.zc_share.z_sharemax = sharemax; 3985185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 3986185029Spjd return (error); 3987185029Spjd} 3988185029Spjd 3989205198Sdelphijvoid 3990205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 3991205198Sdelphij{ 3992205198Sdelphij nvpair_t *curr; 3993205198Sdelphij 3994205198Sdelphij /* 3995205198Sdelphij * Keep a reference to the props-table against which we prune the 3996205198Sdelphij * properties. 3997205198Sdelphij */ 3998205198Sdelphij zhp->zfs_props_table = props; 3999205198Sdelphij 4000205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4001205198Sdelphij 4002205198Sdelphij while (curr) { 4003205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4004205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4005205198Sdelphij 4006206199Sdelphij /* 4007219089Spjd * User properties will result in ZPROP_INVAL, and since we 4008219089Spjd * only know how to prune standard ZFS properties, we always 4009219089Spjd * leave these in the list. This can also happen if we 4010219089Spjd * encounter an unknown DSL property (when running older 4011219089Spjd * software, for example). 4012206199Sdelphij */ 4013206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4014205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4015205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4016205198Sdelphij curr = next; 4017205198Sdelphij } 4018205198Sdelphij} 4019205198Sdelphij 4020209962Smm#ifdef sun 4021209962Smmstatic int 4022209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4023209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4024209962Smm{ 4025209962Smm zfs_cmd_t zc = { 0 }; 4026209962Smm nvlist_t *nvlist = NULL; 4027209962Smm int error; 4028209962Smm 4029209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4030209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4031209962Smm zc.zc_cookie = (uint64_t)cmd; 4032209962Smm 4033209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4034209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4035209962Smm (void) no_memory(hdl); 4036209962Smm return (NULL); 4037209962Smm } 4038209962Smm } 4039209962Smm 4040209962Smm switch (cmd) { 4041209962Smm case ZFS_SMB_ACL_ADD: 4042209962Smm case ZFS_SMB_ACL_REMOVE: 4043209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4044209962Smm break; 4045209962Smm case ZFS_SMB_ACL_RENAME: 4046209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4047209962Smm resource1) != 0) { 4048209962Smm (void) no_memory(hdl); 4049209962Smm return (-1); 4050209962Smm } 4051209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4052209962Smm resource2) != 0) { 4053209962Smm (void) no_memory(hdl); 4054209962Smm return (-1); 4055209962Smm } 4056209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4057209962Smm nvlist_free(nvlist); 4058209962Smm return (-1); 4059209962Smm } 4060209962Smm break; 4061209962Smm case ZFS_SMB_ACL_PURGE: 4062209962Smm break; 4063209962Smm default: 4064209962Smm return (-1); 4065209962Smm } 4066209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4067209962Smm if (nvlist) 4068209962Smm nvlist_free(nvlist); 4069209962Smm return (error); 4070209962Smm} 4071209962Smm 4072209962Smmint 4073209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4074209962Smm char *path, char *resource) 4075209962Smm{ 4076209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4077209962Smm resource, NULL)); 4078209962Smm} 4079209962Smm 4080209962Smmint 4081209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4082209962Smm char *path, char *resource) 4083209962Smm{ 4084209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4085209962Smm resource, NULL)); 4086209962Smm} 4087209962Smm 4088209962Smmint 4089209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4090209962Smm{ 4091209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4092209962Smm NULL, NULL)); 4093209962Smm} 4094209962Smm 4095209962Smmint 4096209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4097209962Smm char *oldname, char *newname) 4098209962Smm{ 4099209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4100209962Smm oldname, newname)); 4101209962Smm} 4102209962Smm#endif /* sun */ 4103209962Smm 4104209962Smmint 4105209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4106209962Smm zfs_userspace_cb_t func, void *arg) 4107209962Smm{ 4108209962Smm zfs_cmd_t zc = { 0 }; 4109209962Smm zfs_useracct_t buf[100]; 4110240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4111240415Smm int ret; 4112209962Smm 4113228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4114209962Smm 4115209962Smm zc.zc_objset_type = type; 4116209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4117209962Smm 4118240415Smm for (;;) { 4119209962Smm zfs_useracct_t *zua = buf; 4120209962Smm 4121209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4122240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4123240415Smm char errbuf[ZFS_MAXNAMELEN + 32]; 4124240415Smm 4125240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4126240415Smm dgettext(TEXT_DOMAIN, 4127240415Smm "cannot get used/quota for %s"), zc.zc_name); 4128240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4129240415Smm } 4130240415Smm if (zc.zc_nvlist_dst_size == 0) 4131209962Smm break; 4132209962Smm 4133209962Smm while (zc.zc_nvlist_dst_size > 0) { 4134240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4135240415Smm zua->zu_space)) != 0) 4136240415Smm return (ret); 4137209962Smm zua++; 4138209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4139209962Smm } 4140209962Smm } 4141209962Smm 4142240415Smm return (0); 4143209962Smm} 4144209962Smm 4145219089Spjdint 4146219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4147219089Spjd boolean_t recursive, boolean_t temphold, boolean_t enoent_ok, 4148219089Spjd int cleanup_fd, uint64_t dsobj, uint64_t createtxg) 4149219089Spjd{ 4150219089Spjd zfs_cmd_t zc = { 0 }; 4151219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4152219089Spjd 4153219089Spjd ASSERT(!recursive || dsobj == 0); 4154219089Spjd 4155219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4156219089Spjd (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 4157219089Spjd if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) 4158219089Spjd >= sizeof (zc.zc_string)) 4159219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); 4160219089Spjd zc.zc_cookie = recursive; 4161219089Spjd zc.zc_temphold = temphold; 4162219089Spjd zc.zc_cleanup_fd = cleanup_fd; 4163219089Spjd zc.zc_sendobj = dsobj; 4164219089Spjd zc.zc_createtxg = createtxg; 4165219089Spjd 4166219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { 4167219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4168219089Spjd 4169219089Spjd /* 4170219089Spjd * if it was recursive, the one that actually failed will be in 4171219089Spjd * zc.zc_name. 4172219089Spjd */ 4173219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4174219089Spjd "cannot hold '%s@%s'"), zc.zc_name, snapname); 4175219089Spjd switch (errno) { 4176219089Spjd case E2BIG: 4177219089Spjd /* 4178219089Spjd * Temporary tags wind up having the ds object id 4179219089Spjd * prepended. So even if we passed the length check 4180219089Spjd * above, it's still possible for the tag to wind 4181219089Spjd * up being slightly too long. 4182219089Spjd */ 4183219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); 4184219089Spjd case ENOTSUP: 4185219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4186219089Spjd "pool must be upgraded")); 4187219089Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4188219089Spjd case EINVAL: 4189219089Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4190219089Spjd case EEXIST: 4191219089Spjd return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); 4192219089Spjd case ENOENT: 4193219089Spjd if (enoent_ok) 4194219089Spjd return (ENOENT); 4195219089Spjd /* FALLTHROUGH */ 4196219089Spjd default: 4197219089Spjd return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4198219089Spjd } 4199219089Spjd } 4200219089Spjd 4201219089Spjd return (0); 4202219089Spjd} 4203219089Spjd 4204219089Spjdint 4205219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4206219089Spjd boolean_t recursive) 4207219089Spjd{ 4208219089Spjd zfs_cmd_t zc = { 0 }; 4209219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4210219089Spjd 4211219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4212219089Spjd (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 4213219089Spjd if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) 4214219089Spjd >= sizeof (zc.zc_string)) 4215219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); 4216219089Spjd zc.zc_cookie = recursive; 4217219089Spjd 4218219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { 4219219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4220219089Spjd 4221219089Spjd /* 4222219089Spjd * if it was recursive, the one that actually failed will be in 4223219089Spjd * zc.zc_name. 4224219089Spjd */ 4225219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4226219089Spjd "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, 4227219089Spjd snapname); 4228219089Spjd switch (errno) { 4229219089Spjd case ESRCH: 4230219089Spjd return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); 4231219089Spjd case ENOTSUP: 4232219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4233219089Spjd "pool must be upgraded")); 4234219089Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4235219089Spjd case EINVAL: 4236219089Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4237219089Spjd default: 4238219089Spjd return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4239219089Spjd } 4240219089Spjd } 4241219089Spjd 4242219089Spjd return (0); 4243219089Spjd} 4244219089Spjd 4245219089Spjdint 4246219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4247219089Spjd{ 4248219089Spjd zfs_cmd_t zc = { 0 }; 4249219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4250219089Spjd int nvsz = 2048; 4251219089Spjd void *nvbuf; 4252219089Spjd int err = 0; 4253219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4254219089Spjd 4255219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4256219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4257219089Spjd 4258219089Spjdtryagain: 4259219089Spjd 4260219089Spjd nvbuf = malloc(nvsz); 4261219089Spjd if (nvbuf == NULL) { 4262219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4263219089Spjd goto out; 4264219089Spjd } 4265219089Spjd 4266219089Spjd zc.zc_nvlist_dst_size = nvsz; 4267219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4268219089Spjd 4269219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4270219089Spjd 4271230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4272219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4273219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4274219089Spjd zc.zc_name); 4275219089Spjd switch (errno) { 4276219089Spjd case ENOMEM: 4277219089Spjd free(nvbuf); 4278219089Spjd nvsz = zc.zc_nvlist_dst_size; 4279219089Spjd goto tryagain; 4280219089Spjd 4281219089Spjd case ENOTSUP: 4282219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4283219089Spjd "pool must be upgraded")); 4284219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4285219089Spjd break; 4286219089Spjd case EINVAL: 4287219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4288219089Spjd break; 4289219089Spjd case ENOENT: 4290219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4291219089Spjd break; 4292219089Spjd default: 4293219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4294219089Spjd break; 4295219089Spjd } 4296219089Spjd } else { 4297219089Spjd /* success */ 4298219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4299219089Spjd if (rc) { 4300219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4301219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4302219089Spjd zc.zc_name); 4303219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4304219089Spjd } 4305219089Spjd } 4306219089Spjd 4307219089Spjd free(nvbuf); 4308219089Spjdout: 4309219089Spjd return (err); 4310219089Spjd} 4311219089Spjd 4312219089Spjdint 4313219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4314219089Spjd{ 4315219089Spjd zfs_cmd_t zc = { 0 }; 4316219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4317219089Spjd char *nvbuf; 4318219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4319219089Spjd size_t nvsz; 4320219089Spjd int err; 4321219089Spjd 4322219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4323219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4324219089Spjd 4325219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4326219089Spjd assert(err == 0); 4327219089Spjd 4328219089Spjd nvbuf = malloc(nvsz); 4329219089Spjd 4330219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4331219089Spjd assert(err == 0); 4332219089Spjd 4333219089Spjd zc.zc_nvlist_src_size = nvsz; 4334219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4335219089Spjd zc.zc_perm_action = un; 4336219089Spjd 4337219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4338219089Spjd 4339219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4340219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4341219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4342219089Spjd zc.zc_name); 4343219089Spjd switch (errno) { 4344219089Spjd case ENOTSUP: 4345219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4346219089Spjd "pool must be upgraded")); 4347219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4348219089Spjd break; 4349219089Spjd case EINVAL: 4350219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4351219089Spjd break; 4352219089Spjd case ENOENT: 4353219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4354219089Spjd break; 4355219089Spjd default: 4356219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4357219089Spjd break; 4358219089Spjd } 4359219089Spjd } 4360219089Spjd 4361219089Spjd free(nvbuf); 4362219089Spjd 4363219089Spjd return (err); 4364219089Spjd} 4365219089Spjd 4366219089Spjdint 4367219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4368219089Spjd{ 4369219089Spjd zfs_cmd_t zc = { 0 }; 4370219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4371219089Spjd int nvsz = 2048; 4372219089Spjd void *nvbuf; 4373219089Spjd int err = 0; 4374219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4375219089Spjd 4376219089Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 4377219089Spjd 4378219089Spjdtryagain: 4379219089Spjd 4380219089Spjd nvbuf = malloc(nvsz); 4381219089Spjd if (nvbuf == NULL) { 4382219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4383219089Spjd goto out; 4384219089Spjd } 4385219089Spjd 4386219089Spjd zc.zc_nvlist_dst_size = nvsz; 4387219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4388219089Spjd 4389219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4390219089Spjd 4391219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_GET_HOLDS, &zc) != 0) { 4392219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4393219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4394219089Spjd zc.zc_name); 4395219089Spjd switch (errno) { 4396219089Spjd case ENOMEM: 4397219089Spjd free(nvbuf); 4398219089Spjd nvsz = zc.zc_nvlist_dst_size; 4399219089Spjd goto tryagain; 4400219089Spjd 4401219089Spjd case ENOTSUP: 4402219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4403219089Spjd "pool must be upgraded")); 4404219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4405219089Spjd break; 4406219089Spjd case EINVAL: 4407219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4408219089Spjd break; 4409219089Spjd case ENOENT: 4410219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4411219089Spjd break; 4412219089Spjd default: 4413219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4414219089Spjd break; 4415219089Spjd } 4416219089Spjd } else { 4417219089Spjd /* success */ 4418219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4419219089Spjd if (rc) { 4420219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4421219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4422219089Spjd zc.zc_name); 4423219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4424219089Spjd } 4425219089Spjd } 4426219089Spjd 4427219089Spjd free(nvbuf); 4428219089Spjdout: 4429219089Spjd return (err); 4430219089Spjd} 4431219089Spjd 4432219089Spjduint64_t 4433219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4434219089Spjd{ 4435219089Spjd uint64_t numdb; 4436219089Spjd uint64_t nblocks, volblocksize; 4437219089Spjd int ncopies; 4438219089Spjd char *strval; 4439219089Spjd 4440219089Spjd if (nvlist_lookup_string(props, 4441219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4442219089Spjd ncopies = atoi(strval); 4443219089Spjd else 4444219089Spjd ncopies = 1; 4445219089Spjd if (nvlist_lookup_uint64(props, 4446219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4447219089Spjd &volblocksize) != 0) 4448219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4449219089Spjd nblocks = volsize/volblocksize; 4450219089Spjd /* start with metadnode L0-L6 */ 4451219089Spjd numdb = 7; 4452219089Spjd /* calculate number of indirects */ 4453219089Spjd while (nblocks > 1) { 4454219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4455219089Spjd nblocks /= DNODES_PER_LEVEL; 4456219089Spjd numdb += nblocks; 4457219089Spjd } 4458219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4459219089Spjd volsize *= ncopies; 4460219089Spjd /* 4461219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4462219089Spjd * compressed, but in practice they compress down to about 4463219089Spjd * 1100 bytes 4464219089Spjd */ 4465219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4466219089Spjd volsize += numdb; 4467219089Spjd return (volsize); 4468219089Spjd} 4469219089Spjd 4470168404Spjd/* 4471168404Spjd * Attach/detach the given filesystem to/from the given jail. 4472168404Spjd */ 4473168404Spjdint 4474168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4475168404Spjd{ 4476168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4477168404Spjd zfs_cmd_t zc = { 0 }; 4478168404Spjd char errbuf[1024]; 4479224525Smm unsigned long cmd; 4480224525Smm int ret; 4481168404Spjd 4482168404Spjd if (attach) { 4483168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4484168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4485168404Spjd } else { 4486168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4487168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4488168404Spjd } 4489168404Spjd 4490168404Spjd switch (zhp->zfs_type) { 4491168404Spjd case ZFS_TYPE_VOLUME: 4492168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4493168404Spjd "volumes can not be jailed")); 4494168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4495168404Spjd case ZFS_TYPE_SNAPSHOT: 4496168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4497168404Spjd "snapshots can not be jailed")); 4498168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4499168404Spjd } 4500168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4501168404Spjd 4502168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4503168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4504168404Spjd zc.zc_jailid = jailid; 4505168404Spjd 4506168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4507168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4508168404Spjd zfs_standard_error(hdl, errno, errbuf); 4509168404Spjd 4510168404Spjd return (ret); 4511168404Spjd} 4512