libzfs_dataset.c revision 236705
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. 24219089Spjd * Copyright 2010 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 614168404Spjd if (!(types & zhp->zfs_type)) { 615168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 616168404Spjd zfs_close(zhp); 617168404Spjd return (NULL); 618168404Spjd } 619168404Spjd 620168404Spjd return (zhp); 621168404Spjd} 622168404Spjd 623168404Spjd/* 624168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 625168404Spjd */ 626168404Spjdvoid 627168404Spjdzfs_close(zfs_handle_t *zhp) 628168404Spjd{ 629168404Spjd if (zhp->zfs_mntopts) 630168404Spjd free(zhp->zfs_mntopts); 631168404Spjd nvlist_free(zhp->zfs_props); 632168404Spjd nvlist_free(zhp->zfs_user_props); 633219089Spjd nvlist_free(zhp->zfs_recvd_props); 634168404Spjd free(zhp); 635168404Spjd} 636168404Spjd 637209962Smmtypedef struct mnttab_node { 638209962Smm struct mnttab mtn_mt; 639209962Smm avl_node_t mtn_node; 640209962Smm} mnttab_node_t; 641209962Smm 642209962Smmstatic int 643209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 644209962Smm{ 645209962Smm const mnttab_node_t *mtn1 = arg1; 646209962Smm const mnttab_node_t *mtn2 = arg2; 647209962Smm int rv; 648209962Smm 649209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 650209962Smm 651209962Smm if (rv == 0) 652209962Smm return (0); 653209962Smm return (rv > 0 ? 1 : -1); 654209962Smm} 655209962Smm 656209962Smmvoid 657209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 658209962Smm{ 659209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 660209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 661209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 662209962Smm} 663209962Smm 664209962Smmvoid 665209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 666209962Smm{ 667209962Smm struct mnttab entry; 668209962Smm 669209962Smm rewind(hdl->libzfs_mnttab); 670209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 671209962Smm mnttab_node_t *mtn; 672209962Smm 673209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 674209962Smm continue; 675209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 676209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 677209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 678209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 679209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 680209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 681209962Smm } 682209962Smm} 683209962Smm 684209962Smmvoid 685209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 686209962Smm{ 687209962Smm void *cookie = NULL; 688209962Smm mnttab_node_t *mtn; 689209962Smm 690209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 691209962Smm free(mtn->mtn_mt.mnt_special); 692209962Smm free(mtn->mtn_mt.mnt_mountp); 693209962Smm free(mtn->mtn_mt.mnt_fstype); 694209962Smm free(mtn->mtn_mt.mnt_mntopts); 695209962Smm free(mtn); 696209962Smm } 697209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 698209962Smm} 699209962Smm 700209962Smmvoid 701209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 702209962Smm{ 703209962Smm hdl->libzfs_mnttab_enable = enable; 704209962Smm} 705209962Smm 706185029Spjdint 707209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 708209962Smm struct mnttab *entry) 709209962Smm{ 710209962Smm mnttab_node_t find; 711209962Smm mnttab_node_t *mtn; 712209962Smm 713209962Smm if (!hdl->libzfs_mnttab_enable) { 714209962Smm struct mnttab srch = { 0 }; 715209962Smm 716209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 717209962Smm libzfs_mnttab_fini(hdl); 718209962Smm rewind(hdl->libzfs_mnttab); 719209962Smm srch.mnt_special = (char *)fsname; 720209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 721209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 722209962Smm return (0); 723209962Smm else 724209962Smm return (ENOENT); 725209962Smm } 726209962Smm 727209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 728209962Smm libzfs_mnttab_update(hdl); 729209962Smm 730209962Smm find.mtn_mt.mnt_special = (char *)fsname; 731209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 732209962Smm if (mtn) { 733209962Smm *entry = mtn->mtn_mt; 734209962Smm return (0); 735209962Smm } 736209962Smm return (ENOENT); 737209962Smm} 738209962Smm 739209962Smmvoid 740209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 741209962Smm const char *mountp, const char *mntopts) 742209962Smm{ 743209962Smm mnttab_node_t *mtn; 744209962Smm 745209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 746209962Smm return; 747209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 748209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 749209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 750209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 751209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 752209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 753209962Smm} 754209962Smm 755209962Smmvoid 756209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 757209962Smm{ 758209962Smm mnttab_node_t find; 759209962Smm mnttab_node_t *ret; 760209962Smm 761209962Smm find.mtn_mt.mnt_special = (char *)fsname; 762209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 763209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 764209962Smm free(ret->mtn_mt.mnt_special); 765209962Smm free(ret->mtn_mt.mnt_mountp); 766209962Smm free(ret->mtn_mt.mnt_fstype); 767209962Smm free(ret->mtn_mt.mnt_mntopts); 768209962Smm free(ret); 769209962Smm } 770209962Smm} 771209962Smm 772209962Smmint 773185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 774168404Spjd{ 775185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 776168404Spjd 777185029Spjd if (zpool_handle == NULL) 778168404Spjd return (-1); 779168404Spjd 780185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 781185029Spjd ZPOOL_PROP_VERSION, NULL); 782168404Spjd return (0); 783168404Spjd} 784168404Spjd 785168404Spjd/* 786185029Spjd * The choice of reservation property depends on the SPA version. 787168404Spjd */ 788168404Spjdstatic int 789185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 790168404Spjd{ 791185029Spjd int spa_version; 792168404Spjd 793185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 794168404Spjd return (-1); 795168404Spjd 796185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 797185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 798185029Spjd else 799185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 800168404Spjd 801168404Spjd return (0); 802168404Spjd} 803168404Spjd 804168404Spjd/* 805168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 806168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 807168404Spjd * strings. 808168404Spjd */ 809168404Spjdnvlist_t * 810185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 811185029Spjd uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) 812168404Spjd{ 813168404Spjd nvpair_t *elem; 814168404Spjd uint64_t intval; 815168404Spjd char *strval; 816185029Spjd zfs_prop_t prop; 817168404Spjd nvlist_t *ret; 818185029Spjd int chosen_normal = -1; 819185029Spjd int chosen_utf = -1; 820168404Spjd 821168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 822168404Spjd (void) no_memory(hdl); 823168404Spjd return (NULL); 824168404Spjd } 825168404Spjd 826209962Smm /* 827209962Smm * Make sure this property is valid and applies to this type. 828209962Smm */ 829209962Smm 830168404Spjd elem = NULL; 831168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 832185029Spjd const char *propname = nvpair_name(elem); 833168404Spjd 834209962Smm prop = zfs_name_to_prop(propname); 835209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 836185029Spjd /* 837209962Smm * This is a user property: make sure it's a 838185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 839185029Spjd */ 840185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 841185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 842185029Spjd "'%s' must be a string"), propname); 843185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 844185029Spjd goto error; 845168404Spjd } 846168404Spjd 847185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 848185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 849185029Spjd "property name '%s' is too long"), 850185029Spjd propname); 851185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 852185029Spjd goto error; 853185029Spjd } 854185029Spjd 855168404Spjd (void) nvpair_value_string(elem, &strval); 856168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 857168404Spjd (void) no_memory(hdl); 858168404Spjd goto error; 859168404Spjd } 860168404Spjd continue; 861168404Spjd } 862168404Spjd 863209962Smm /* 864209962Smm * Currently, only user properties can be modified on 865209962Smm * snapshots. 866209962Smm */ 867185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 868185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 869185029Spjd "this property can not be modified for snapshots")); 870185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 871185029Spjd goto error; 872185029Spjd } 873168404Spjd 874209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 875209962Smm zfs_userquota_prop_t uqtype; 876209962Smm char newpropname[128]; 877209962Smm char domain[128]; 878209962Smm uint64_t rid; 879209962Smm uint64_t valary[3]; 880209962Smm 881209962Smm if (userquota_propname_decode(propname, zoned, 882209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 883209962Smm zfs_error_aux(hdl, 884209962Smm dgettext(TEXT_DOMAIN, 885209962Smm "'%s' has an invalid user/group name"), 886209962Smm propname); 887209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 888209962Smm goto error; 889209962Smm } 890209962Smm 891209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 892209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 893209962Smm zfs_error_aux(hdl, 894209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 895209962Smm propname); 896209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 897209962Smm errbuf); 898209962Smm goto error; 899209962Smm } 900209962Smm 901209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 902209962Smm (void) nvpair_value_string(elem, &strval); 903209962Smm if (strcmp(strval, "none") == 0) { 904209962Smm intval = 0; 905209962Smm } else if (zfs_nicestrtonum(hdl, 906209962Smm strval, &intval) != 0) { 907209962Smm (void) zfs_error(hdl, 908209962Smm EZFS_BADPROP, errbuf); 909209962Smm goto error; 910209962Smm } 911209962Smm } else if (nvpair_type(elem) == 912209962Smm DATA_TYPE_UINT64) { 913209962Smm (void) nvpair_value_uint64(elem, &intval); 914209962Smm if (intval == 0) { 915209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 916209962Smm "use 'none' to disable " 917209962Smm "userquota/groupquota")); 918209962Smm goto error; 919209962Smm } 920209962Smm } else { 921209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 922209962Smm "'%s' must be a number"), propname); 923209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 924209962Smm goto error; 925209962Smm } 926209962Smm 927219089Spjd /* 928219089Spjd * Encode the prop name as 929219089Spjd * userquota@<hex-rid>-domain, to make it easy 930219089Spjd * for the kernel to decode. 931219089Spjd */ 932209962Smm (void) snprintf(newpropname, sizeof (newpropname), 933219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 934219089Spjd (longlong_t)rid, domain); 935209962Smm valary[0] = uqtype; 936209962Smm valary[1] = rid; 937209962Smm valary[2] = intval; 938209962Smm if (nvlist_add_uint64_array(ret, newpropname, 939209962Smm valary, 3) != 0) { 940209962Smm (void) no_memory(hdl); 941209962Smm goto error; 942209962Smm } 943209962Smm continue; 944228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 945228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 946228103Smm "'%s' is readonly"), 947228103Smm propname); 948228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 949228103Smm goto error; 950209962Smm } 951209962Smm 952209962Smm if (prop == ZPROP_INVAL) { 953209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 954209962Smm "invalid property '%s'"), propname); 955209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 956209962Smm goto error; 957209962Smm } 958209962Smm 959168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 960168404Spjd zfs_error_aux(hdl, 961168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 962168404Spjd "apply to datasets of this type"), propname); 963168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 964168404Spjd goto error; 965168404Spjd } 966168404Spjd 967168404Spjd if (zfs_prop_readonly(prop) && 968185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 969168404Spjd zfs_error_aux(hdl, 970168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 971168404Spjd propname); 972168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 973168404Spjd goto error; 974168404Spjd } 975168404Spjd 976185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 977185029Spjd &strval, &intval, errbuf) != 0) 978185029Spjd goto error; 979185029Spjd 980168404Spjd /* 981185029Spjd * Perform some additional checks for specific properties. 982168404Spjd */ 983185029Spjd switch (prop) { 984185029Spjd case ZFS_PROP_VERSION: 985185029Spjd { 986185029Spjd int version; 987168404Spjd 988185029Spjd if (zhp == NULL) 989185029Spjd break; 990185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 991185029Spjd if (intval < version) { 992168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 993185029Spjd "Can not downgrade; already at version %u"), 994185029Spjd version); 995168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 996168404Spjd goto error; 997168404Spjd } 998168404Spjd break; 999168404Spjd } 1000168404Spjd 1001168404Spjd case ZFS_PROP_RECORDSIZE: 1002168404Spjd case ZFS_PROP_VOLBLOCKSIZE: 1003168404Spjd /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ 1004168404Spjd if (intval < SPA_MINBLOCKSIZE || 1005168404Spjd intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { 1006168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1007168404Spjd "'%s' must be power of 2 from %u " 1008168404Spjd "to %uk"), propname, 1009168404Spjd (uint_t)SPA_MINBLOCKSIZE, 1010168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 1011168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1012168404Spjd goto error; 1013168404Spjd } 1014168404Spjd break; 1015168404Spjd 1016219089Spjd case ZFS_PROP_MLSLABEL: 1017219089Spjd { 1018219089Spjd#ifdef sun 1019219089Spjd /* 1020219089Spjd * Verify the mlslabel string and convert to 1021219089Spjd * internal hex label string. 1022219089Spjd */ 1023219089Spjd 1024219089Spjd m_label_t *new_sl; 1025219089Spjd char *hex = NULL; /* internal label string */ 1026219089Spjd 1027219089Spjd /* Default value is already OK. */ 1028219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1029219089Spjd break; 1030219089Spjd 1031219089Spjd /* Verify the label can be converted to binary form */ 1032219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1033219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1034219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1035219089Spjd goto badlabel; 1036168404Spjd } 1037168404Spjd 1038219089Spjd /* Now translate to hex internal label string */ 1039219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1040219089Spjd DEF_NAMES) != 0) { 1041219089Spjd if (hex) 1042219089Spjd free(hex); 1043219089Spjd goto badlabel; 1044219089Spjd } 1045219089Spjd m_label_free(new_sl); 1046219089Spjd 1047219089Spjd /* If string is already in internal form, we're done. */ 1048219089Spjd if (strcmp(strval, hex) == 0) { 1049219089Spjd free(hex); 1050219089Spjd break; 1051219089Spjd } 1052219089Spjd 1053219089Spjd /* Replace the label string with the internal form. */ 1054219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1055219089Spjd DATA_TYPE_STRING); 1056219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1057219089Spjd hex) == 0); 1058219089Spjd free(hex); 1059219089Spjd 1060168404Spjd break; 1061168404Spjd 1062219089Spjdbadlabel: 1063219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1064219089Spjd "invalid mlslabel '%s'"), strval); 1065219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1066219089Spjd m_label_free(new_sl); /* OK if null */ 1067219089Spjd#else /* !sun */ 1068219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1069219089Spjd "mlslabel is not supported on FreeBSD")); 1070219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1071219089Spjd#endif /* !sun */ 1072219089Spjd goto error; 1073219089Spjd 1074219089Spjd } 1075219089Spjd 1076168404Spjd case ZFS_PROP_MOUNTPOINT: 1077185029Spjd { 1078185029Spjd namecheck_err_t why; 1079185029Spjd 1080168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1081168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1082168404Spjd break; 1083168404Spjd 1084185029Spjd if (mountpoint_namecheck(strval, &why)) { 1085185029Spjd switch (why) { 1086185029Spjd case NAME_ERR_LEADING_SLASH: 1087185029Spjd zfs_error_aux(hdl, 1088185029Spjd dgettext(TEXT_DOMAIN, 1089185029Spjd "'%s' must be an absolute path, " 1090185029Spjd "'none', or 'legacy'"), propname); 1091185029Spjd break; 1092185029Spjd case NAME_ERR_TOOLONG: 1093185029Spjd zfs_error_aux(hdl, 1094185029Spjd dgettext(TEXT_DOMAIN, 1095185029Spjd "component of '%s' is too long"), 1096185029Spjd propname); 1097185029Spjd break; 1098185029Spjd } 1099168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1100168404Spjd goto error; 1101168404Spjd } 1102185029Spjd } 1103185029Spjd 1104168404Spjd /*FALLTHRU*/ 1105168404Spjd 1106185029Spjd case ZFS_PROP_SHARESMB: 1107168404Spjd case ZFS_PROP_SHARENFS: 1108168404Spjd /* 1109185029Spjd * For the mountpoint and sharenfs or sharesmb 1110185029Spjd * properties, check if it can be set in a 1111185029Spjd * global/non-global zone based on 1112168404Spjd * the zoned property value: 1113168404Spjd * 1114168404Spjd * global zone non-global zone 1115168404Spjd * -------------------------------------------------- 1116168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1117168404Spjd * sharenfs (no) sharenfs (no) 1118185029Spjd * sharesmb (no) sharesmb (no) 1119168404Spjd * 1120168404Spjd * zoned=off mountpoint (yes) N/A 1121168404Spjd * sharenfs (yes) 1122185029Spjd * sharesmb (yes) 1123168404Spjd */ 1124168404Spjd if (zoned) { 1125168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1126168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1127168404Spjd "'%s' cannot be set on " 1128168404Spjd "dataset in a non-global zone"), 1129168404Spjd propname); 1130168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1131168404Spjd errbuf); 1132168404Spjd goto error; 1133185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1134185029Spjd prop == ZFS_PROP_SHARESMB) { 1135168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1136168404Spjd "'%s' cannot be set in " 1137168404Spjd "a non-global zone"), propname); 1138168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1139168404Spjd errbuf); 1140168404Spjd goto error; 1141168404Spjd } 1142168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1143168404Spjd /* 1144168404Spjd * If zoned property is 'off', this must be in 1145209962Smm * a global zone. If not, something is wrong. 1146168404Spjd */ 1147168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1148168404Spjd "'%s' cannot be set while dataset " 1149168404Spjd "'zoned' property is set"), propname); 1150168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1151168404Spjd goto error; 1152168404Spjd } 1153168404Spjd 1154168404Spjd /* 1155185029Spjd * At this point, it is legitimate to set the 1156185029Spjd * property. Now we want to make sure that the 1157185029Spjd * property value is valid if it is sharenfs. 1158168404Spjd */ 1159185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1160185029Spjd prop == ZFS_PROP_SHARESMB) && 1161185029Spjd strcmp(strval, "on") != 0 && 1162185029Spjd strcmp(strval, "off") != 0) { 1163185029Spjd zfs_share_proto_t proto; 1164168404Spjd 1165185029Spjd if (prop == ZFS_PROP_SHARESMB) 1166185029Spjd proto = PROTO_SMB; 1167185029Spjd else 1168185029Spjd proto = PROTO_NFS; 1169185029Spjd 1170185029Spjd /* 1171185029Spjd * Must be an valid sharing protocol 1172185029Spjd * option string so init the libshare 1173185029Spjd * in order to enable the parser and 1174185029Spjd * then parse the options. We use the 1175185029Spjd * control API since we don't care about 1176185029Spjd * the current configuration and don't 1177185029Spjd * want the overhead of loading it 1178185029Spjd * until we actually do something. 1179185029Spjd */ 1180185029Spjd 1181185029Spjd if (zfs_init_libshare(hdl, 1182185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1183185029Spjd /* 1184185029Spjd * An error occurred so we can't do 1185185029Spjd * anything 1186185029Spjd */ 1187185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1188185029Spjd "'%s' cannot be set: problem " 1189185029Spjd "in share initialization"), 1190185029Spjd propname); 1191185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1192185029Spjd errbuf); 1193185029Spjd goto error; 1194185029Spjd } 1195185029Spjd 1196185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1197185029Spjd /* 1198185029Spjd * There was an error in parsing so 1199185029Spjd * deal with it by issuing an error 1200185029Spjd * message and leaving after 1201185029Spjd * uninitializing the the libshare 1202185029Spjd * interface. 1203185029Spjd */ 1204185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1205185029Spjd "'%s' cannot be set to invalid " 1206185029Spjd "options"), propname); 1207185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1208185029Spjd errbuf); 1209185029Spjd zfs_uninit_libshare(hdl); 1210185029Spjd goto error; 1211185029Spjd } 1212185029Spjd zfs_uninit_libshare(hdl); 1213168404Spjd } 1214185029Spjd 1215168404Spjd break; 1216185029Spjd case ZFS_PROP_UTF8ONLY: 1217185029Spjd chosen_utf = (int)intval; 1218185029Spjd break; 1219185029Spjd case ZFS_PROP_NORMALIZE: 1220185029Spjd chosen_normal = (int)intval; 1221185029Spjd break; 1222168404Spjd } 1223168404Spjd 1224168404Spjd /* 1225168404Spjd * For changes to existing volumes, we have some additional 1226168404Spjd * checks to enforce. 1227168404Spjd */ 1228168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1229168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1230168404Spjd ZFS_PROP_VOLSIZE); 1231168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1232168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1233168404Spjd char buf[64]; 1234168404Spjd 1235168404Spjd switch (prop) { 1236168404Spjd case ZFS_PROP_RESERVATION: 1237185029Spjd case ZFS_PROP_REFRESERVATION: 1238168404Spjd if (intval > volsize) { 1239168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1240168404Spjd "'%s' is greater than current " 1241168404Spjd "volume size"), propname); 1242168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1243168404Spjd errbuf); 1244168404Spjd goto error; 1245168404Spjd } 1246168404Spjd break; 1247168404Spjd 1248168404Spjd case ZFS_PROP_VOLSIZE: 1249168404Spjd if (intval % blocksize != 0) { 1250168404Spjd zfs_nicenum(blocksize, buf, 1251168404Spjd sizeof (buf)); 1252168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1253168404Spjd "'%s' must be a multiple of " 1254168404Spjd "volume block size (%s)"), 1255168404Spjd propname, buf); 1256168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1257168404Spjd errbuf); 1258168404Spjd goto error; 1259168404Spjd } 1260168404Spjd 1261168404Spjd if (intval == 0) { 1262168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1263168404Spjd "'%s' cannot be zero"), 1264168404Spjd propname); 1265168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1266168404Spjd errbuf); 1267168404Spjd goto error; 1268168404Spjd } 1269168404Spjd break; 1270168404Spjd } 1271168404Spjd } 1272168404Spjd } 1273168404Spjd 1274168404Spjd /* 1275185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1276185029Spjd * enforce rejection of non-UTF8 names. 1277185029Spjd * 1278185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1279185029Spjd * was explicitly not chosen, it is an error. 1280185029Spjd */ 1281185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1282185029Spjd if (nvlist_add_uint64(ret, 1283185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1284185029Spjd (void) no_memory(hdl); 1285185029Spjd goto error; 1286185029Spjd } 1287185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1288185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1289185029Spjd "'%s' must be set 'on' if normalization chosen"), 1290185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1291185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1292185029Spjd goto error; 1293185029Spjd } 1294219089Spjd return (ret); 1295185029Spjd 1296219089Spjderror: 1297219089Spjd nvlist_free(ret); 1298219089Spjd return (NULL); 1299219089Spjd} 1300219089Spjd 1301219089Spjdint 1302219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1303219089Spjd{ 1304219089Spjd uint64_t old_volsize; 1305219089Spjd uint64_t new_volsize; 1306219089Spjd uint64_t old_reservation; 1307219089Spjd uint64_t new_reservation; 1308219089Spjd zfs_prop_t resv_prop; 1309219089Spjd 1310185029Spjd /* 1311168404Spjd * If this is an existing volume, and someone is setting the volsize, 1312168404Spjd * make sure that it matches the reservation, or add it if necessary. 1313168404Spjd */ 1314219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1315219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1316219089Spjd return (-1); 1317219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1318219089Spjd if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != 1319219089Spjd old_reservation) || nvlist_lookup_uint64(nvl, 1320219089Spjd zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { 1321219089Spjd return (0); 1322219089Spjd } 1323219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1324219089Spjd &new_volsize) != 0) 1325219089Spjd return (-1); 1326219089Spjd new_reservation = zvol_volsize_to_reservation(new_volsize, 1327219089Spjd zhp->zfs_props); 1328219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1329219089Spjd new_reservation) != 0) { 1330219089Spjd (void) no_memory(zhp->zfs_hdl); 1331219089Spjd return (-1); 1332219089Spjd } 1333219089Spjd return (1); 1334219089Spjd} 1335168404Spjd 1336219089Spjdvoid 1337219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1338219089Spjd char *errbuf) 1339219089Spjd{ 1340219089Spjd switch (err) { 1341185029Spjd 1342219089Spjd case ENOSPC: 1343219089Spjd /* 1344219089Spjd * For quotas and reservations, ENOSPC indicates 1345219089Spjd * something different; setting a quota or reservation 1346219089Spjd * doesn't use any disk space. 1347219089Spjd */ 1348219089Spjd switch (prop) { 1349219089Spjd case ZFS_PROP_QUOTA: 1350219089Spjd case ZFS_PROP_REFQUOTA: 1351219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1352219089Spjd "size is less than current used or " 1353219089Spjd "reserved space")); 1354219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1355219089Spjd break; 1356219089Spjd 1357219089Spjd case ZFS_PROP_RESERVATION: 1358219089Spjd case ZFS_PROP_REFRESERVATION: 1359219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1360219089Spjd "size is greater than available space")); 1361219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1362219089Spjd break; 1363219089Spjd 1364219089Spjd default: 1365219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1366219089Spjd break; 1367168404Spjd } 1368219089Spjd break; 1369219089Spjd 1370219089Spjd case EBUSY: 1371219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1372219089Spjd break; 1373219089Spjd 1374219089Spjd case EROFS: 1375219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1376219089Spjd break; 1377219089Spjd 1378219089Spjd case ENOTSUP: 1379219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1380219089Spjd "pool and or dataset must be upgraded to set this " 1381219089Spjd "property or value")); 1382219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1383219089Spjd break; 1384219089Spjd 1385219089Spjd case ERANGE: 1386219089Spjd if (prop == ZFS_PROP_COMPRESSION) { 1387219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1388219089Spjd "property setting is not allowed on " 1389219089Spjd "bootable datasets")); 1390219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1391219089Spjd } else { 1392219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1393219089Spjd } 1394219089Spjd break; 1395219089Spjd 1396219089Spjd case EINVAL: 1397219089Spjd if (prop == ZPROP_INVAL) { 1398219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1399219089Spjd } else { 1400219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1401219089Spjd } 1402219089Spjd break; 1403219089Spjd 1404219089Spjd case EOVERFLOW: 1405219089Spjd /* 1406219089Spjd * This platform can't address a volume this big. 1407219089Spjd */ 1408219089Spjd#ifdef _ILP32 1409219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1410219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1411219089Spjd break; 1412219089Spjd } 1413219089Spjd#endif 1414219089Spjd /* FALLTHROUGH */ 1415219089Spjd default: 1416219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1417168404Spjd } 1418168404Spjd} 1419168404Spjd 1420168404Spjd/* 1421168404Spjd * Given a property name and value, set the property for the given dataset. 1422168404Spjd */ 1423168404Spjdint 1424168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1425168404Spjd{ 1426168404Spjd zfs_cmd_t zc = { 0 }; 1427168404Spjd int ret = -1; 1428168404Spjd prop_changelist_t *cl = NULL; 1429168404Spjd char errbuf[1024]; 1430168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1431168404Spjd nvlist_t *nvl = NULL, *realprops; 1432168404Spjd zfs_prop_t prop; 1433185029Spjd boolean_t do_prefix; 1434185029Spjd uint64_t idx; 1435219089Spjd int added_resv; 1436168404Spjd 1437168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1438168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1439168404Spjd zhp->zfs_name); 1440168404Spjd 1441168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1442168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1443168404Spjd (void) no_memory(hdl); 1444168404Spjd goto error; 1445168404Spjd } 1446168404Spjd 1447185029Spjd if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, 1448168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) 1449168404Spjd goto error; 1450185029Spjd 1451168404Spjd nvlist_free(nvl); 1452168404Spjd nvl = realprops; 1453168404Spjd 1454168404Spjd prop = zfs_name_to_prop(propname); 1455168404Spjd 1456168404Spjd /* We don't support those properties on FreeBSD. */ 1457168404Spjd switch (prop) { 1458197867Strasz case ZFS_PROP_DEVICES: 1459168404Spjd case ZFS_PROP_ISCSIOPTIONS: 1460197867Strasz case ZFS_PROP_XATTR: 1461197867Strasz case ZFS_PROP_VSCAN: 1462197867Strasz case ZFS_PROP_NBMAND: 1463219089Spjd case ZFS_PROP_MLSLABEL: 1464168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1465168404Spjd "property '%s' not supported on FreeBSD", propname); 1466168404Spjd ret = zfs_error(hdl, EZFS_PERM, errbuf); 1467168404Spjd goto error; 1468168404Spjd } 1469168404Spjd 1470219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1471219089Spjd if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) 1472219089Spjd goto error; 1473219089Spjd } 1474219089Spjd 1475185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1476168404Spjd goto error; 1477168404Spjd 1478168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1479168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1480168404Spjd "child dataset with inherited mountpoint is used " 1481168404Spjd "in a non-global zone")); 1482168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1483168404Spjd goto error; 1484168404Spjd } 1485168404Spjd 1486185029Spjd /* 1487185029Spjd * If the dataset's canmount property is being set to noauto, 1488185029Spjd * then we want to prevent unmounting & remounting it. 1489185029Spjd */ 1490185029Spjd do_prefix = !((prop == ZFS_PROP_CANMOUNT) && 1491185029Spjd (zprop_string_to_index(prop, propval, &idx, 1492185029Spjd ZFS_TYPE_DATASET) == 0) && (idx == ZFS_CANMOUNT_NOAUTO)); 1493185029Spjd 1494185029Spjd if (do_prefix && (ret = changelist_prefix(cl)) != 0) 1495168404Spjd goto error; 1496168404Spjd 1497168404Spjd /* 1498168404Spjd * Execute the corresponding ioctl() to set this property. 1499168404Spjd */ 1500168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1501168404Spjd 1502185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1503168404Spjd goto error; 1504168404Spjd 1505185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1506209962Smm 1507168404Spjd if (ret != 0) { 1508219089Spjd zfs_setprop_error(hdl, prop, errno, errbuf); 1509219089Spjd if (added_resv && errno == ENOSPC) { 1510219089Spjd /* clean up the volsize property we tried to set */ 1511219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1512219089Spjd ZFS_PROP_VOLSIZE); 1513219089Spjd nvlist_free(nvl); 1514219089Spjd zcmd_free_nvlists(&zc); 1515219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1516219089Spjd goto error; 1517219089Spjd if (nvlist_add_uint64(nvl, 1518219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1519219089Spjd old_volsize) != 0) 1520219089Spjd goto error; 1521219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1522219089Spjd goto error; 1523219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1524168404Spjd } 1525168404Spjd } else { 1526185029Spjd if (do_prefix) 1527185029Spjd ret = changelist_postfix(cl); 1528185029Spjd 1529168404Spjd /* 1530168404Spjd * Refresh the statistics so the new property value 1531168404Spjd * is reflected. 1532168404Spjd */ 1533185029Spjd if (ret == 0) 1534168404Spjd (void) get_stats(zhp); 1535168404Spjd } 1536168404Spjd 1537168404Spjderror: 1538168404Spjd nvlist_free(nvl); 1539168404Spjd zcmd_free_nvlists(&zc); 1540168404Spjd if (cl) 1541168404Spjd changelist_free(cl); 1542168404Spjd return (ret); 1543168404Spjd} 1544168404Spjd 1545168404Spjd/* 1546219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1547219089Spjd * is TRUE, revert to the received value, if any. 1548168404Spjd */ 1549168404Spjdint 1550219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1551168404Spjd{ 1552168404Spjd zfs_cmd_t zc = { 0 }; 1553168404Spjd int ret; 1554168404Spjd prop_changelist_t *cl; 1555168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1556168404Spjd char errbuf[1024]; 1557168404Spjd zfs_prop_t prop; 1558168404Spjd 1559168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1560168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1561168404Spjd 1562219089Spjd zc.zc_cookie = received; 1563185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1564168404Spjd /* 1565168404Spjd * For user properties, the amount of work we have to do is very 1566168404Spjd * small, so just do it here. 1567168404Spjd */ 1568168404Spjd if (!zfs_prop_user(propname)) { 1569168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1570168404Spjd "invalid property")); 1571168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1572168404Spjd } 1573168404Spjd 1574168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1575168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1576168404Spjd 1577185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1578168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1579168404Spjd 1580168404Spjd return (0); 1581168404Spjd } 1582168404Spjd 1583168404Spjd /* 1584168404Spjd * Verify that this property is inheritable. 1585168404Spjd */ 1586168404Spjd if (zfs_prop_readonly(prop)) 1587168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1588168404Spjd 1589219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1590168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1591168404Spjd 1592168404Spjd /* 1593168404Spjd * Check to see if the value applies to this type 1594168404Spjd */ 1595168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1596168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1597168404Spjd 1598168404Spjd /* 1599219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1600168404Spjd */ 1601168404Spjd propname = zfs_prop_to_name(prop); 1602168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1603168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1604168404Spjd 1605168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1606168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1607168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1608168404Spjd "dataset is used in a non-global zone")); 1609168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1610168404Spjd } 1611168404Spjd 1612168404Spjd /* 1613168404Spjd * Determine datasets which will be affected by this change, if any. 1614168404Spjd */ 1615185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1616168404Spjd return (-1); 1617168404Spjd 1618168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1619168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1620168404Spjd "child dataset with inherited mountpoint is used " 1621168404Spjd "in a non-global zone")); 1622168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1623168404Spjd goto error; 1624168404Spjd } 1625168404Spjd 1626168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1627168404Spjd goto error; 1628168404Spjd 1629185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1630168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1631168404Spjd } else { 1632168404Spjd 1633168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1634168404Spjd goto error; 1635168404Spjd 1636168404Spjd /* 1637168404Spjd * Refresh the statistics so the new property is reflected. 1638168404Spjd */ 1639168404Spjd (void) get_stats(zhp); 1640168404Spjd } 1641168404Spjd 1642168404Spjderror: 1643168404Spjd changelist_free(cl); 1644168404Spjd return (ret); 1645168404Spjd} 1646168404Spjd 1647168404Spjd/* 1648168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1649168404Spjd * extract them appropriately. 1650168404Spjd */ 1651168404Spjdstatic uint64_t 1652168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1653168404Spjd{ 1654168404Spjd nvlist_t *nv; 1655168404Spjd uint64_t value; 1656168404Spjd 1657168404Spjd *source = NULL; 1658168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1659168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1660185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1661185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1662168404Spjd } else { 1663205198Sdelphij verify(!zhp->zfs_props_table || 1664205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1665168404Spjd value = zfs_prop_default_numeric(prop); 1666168404Spjd *source = ""; 1667168404Spjd } 1668168404Spjd 1669168404Spjd return (value); 1670168404Spjd} 1671168404Spjd 1672168404Spjdstatic char * 1673168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1674168404Spjd{ 1675168404Spjd nvlist_t *nv; 1676168404Spjd char *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_string(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 if ((value = (char *)zfs_prop_default_string(prop)) == NULL) 1687168404Spjd value = ""; 1688168404Spjd *source = ""; 1689168404Spjd } 1690168404Spjd 1691168404Spjd return (value); 1692168404Spjd} 1693168404Spjd 1694219089Spjdstatic boolean_t 1695219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1696219089Spjd{ 1697219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1698219089Spjd} 1699219089Spjd 1700219089Spjdstatic void 1701219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1702219089Spjd{ 1703219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1704219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1705219089Spjd} 1706219089Spjd 1707219089Spjdstatic void 1708219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1709219089Spjd{ 1710219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1711219089Spjd *cookie = 0; 1712219089Spjd} 1713219089Spjd 1714168404Spjd/* 1715168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1716168404Spjd * zfs_prop_get_int() are built using this interface. 1717168404Spjd * 1718168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1719168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1720168404Spjd * If they differ from the on-disk values, report the current values and mark 1721168404Spjd * the source "temporary". 1722168404Spjd */ 1723168404Spjdstatic int 1724185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1725168404Spjd char **source, uint64_t *val) 1726168404Spjd{ 1727185029Spjd zfs_cmd_t zc = { 0 }; 1728185029Spjd nvlist_t *zplprops = NULL; 1729168404Spjd struct mnttab mnt; 1730168404Spjd char *mntopt_on = NULL; 1731168404Spjd char *mntopt_off = NULL; 1732219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1733168404Spjd 1734168404Spjd *source = NULL; 1735168404Spjd 1736168404Spjd switch (prop) { 1737168404Spjd case ZFS_PROP_ATIME: 1738168404Spjd mntopt_on = MNTOPT_ATIME; 1739168404Spjd mntopt_off = MNTOPT_NOATIME; 1740168404Spjd break; 1741168404Spjd 1742168404Spjd case ZFS_PROP_DEVICES: 1743168404Spjd mntopt_on = MNTOPT_DEVICES; 1744168404Spjd mntopt_off = MNTOPT_NODEVICES; 1745168404Spjd break; 1746168404Spjd 1747168404Spjd case ZFS_PROP_EXEC: 1748168404Spjd mntopt_on = MNTOPT_EXEC; 1749168404Spjd mntopt_off = MNTOPT_NOEXEC; 1750168404Spjd break; 1751168404Spjd 1752168404Spjd case ZFS_PROP_READONLY: 1753168404Spjd mntopt_on = MNTOPT_RO; 1754168404Spjd mntopt_off = MNTOPT_RW; 1755168404Spjd break; 1756168404Spjd 1757168404Spjd case ZFS_PROP_SETUID: 1758168404Spjd mntopt_on = MNTOPT_SETUID; 1759168404Spjd mntopt_off = MNTOPT_NOSETUID; 1760168404Spjd break; 1761168404Spjd 1762168404Spjd case ZFS_PROP_XATTR: 1763168404Spjd mntopt_on = MNTOPT_XATTR; 1764168404Spjd mntopt_off = MNTOPT_NOXATTR; 1765168404Spjd break; 1766185029Spjd 1767185029Spjd case ZFS_PROP_NBMAND: 1768185029Spjd mntopt_on = MNTOPT_NBMAND; 1769185029Spjd mntopt_off = MNTOPT_NONBMAND; 1770185029Spjd break; 1771168404Spjd } 1772168404Spjd 1773168404Spjd /* 1774168404Spjd * Because looking up the mount options is potentially expensive 1775168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1776168404Spjd * we're looking up a property which requires its presence. 1777168404Spjd */ 1778168404Spjd if (!zhp->zfs_mntcheck && 1779168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1780209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1781209962Smm struct mnttab entry; 1782168404Spjd 1783209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1784209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1785168404Spjd entry.mnt_mntopts); 1786168404Spjd if (zhp->zfs_mntopts == NULL) 1787168404Spjd return (-1); 1788168404Spjd } 1789168404Spjd 1790168404Spjd zhp->zfs_mntcheck = B_TRUE; 1791168404Spjd } 1792168404Spjd 1793168404Spjd if (zhp->zfs_mntopts == NULL) 1794168404Spjd mnt.mnt_mntopts = ""; 1795168404Spjd else 1796168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 1797168404Spjd 1798168404Spjd switch (prop) { 1799168404Spjd case ZFS_PROP_ATIME: 1800168404Spjd case ZFS_PROP_DEVICES: 1801168404Spjd case ZFS_PROP_EXEC: 1802168404Spjd case ZFS_PROP_READONLY: 1803168404Spjd case ZFS_PROP_SETUID: 1804168404Spjd case ZFS_PROP_XATTR: 1805185029Spjd case ZFS_PROP_NBMAND: 1806168404Spjd *val = getprop_uint64(zhp, prop, source); 1807168404Spjd 1808219089Spjd if (received) 1809219089Spjd break; 1810219089Spjd 1811168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 1812168404Spjd *val = B_TRUE; 1813168404Spjd if (src) 1814185029Spjd *src = ZPROP_SRC_TEMPORARY; 1815168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 1816168404Spjd *val = B_FALSE; 1817168404Spjd if (src) 1818185029Spjd *src = ZPROP_SRC_TEMPORARY; 1819168404Spjd } 1820168404Spjd break; 1821168404Spjd 1822168404Spjd case ZFS_PROP_CANMOUNT: 1823219089Spjd case ZFS_PROP_VOLSIZE: 1824168404Spjd case ZFS_PROP_QUOTA: 1825185029Spjd case ZFS_PROP_REFQUOTA: 1826168404Spjd case ZFS_PROP_RESERVATION: 1827185029Spjd case ZFS_PROP_REFRESERVATION: 1828168404Spjd *val = getprop_uint64(zhp, prop, source); 1829219089Spjd 1830219089Spjd if (*source == NULL) { 1831219089Spjd /* not default, must be local */ 1832168404Spjd *source = zhp->zfs_name; 1833219089Spjd } 1834168404Spjd break; 1835168404Spjd 1836168404Spjd case ZFS_PROP_MOUNTED: 1837168404Spjd *val = (zhp->zfs_mntopts != NULL); 1838168404Spjd break; 1839168404Spjd 1840168404Spjd case ZFS_PROP_NUMCLONES: 1841168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 1842168404Spjd break; 1843168404Spjd 1844185029Spjd case ZFS_PROP_VERSION: 1845185029Spjd case ZFS_PROP_NORMALIZE: 1846185029Spjd case ZFS_PROP_UTF8ONLY: 1847185029Spjd case ZFS_PROP_CASE: 1848185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 1849185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 1850185029Spjd return (-1); 1851185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1852185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 1853185029Spjd zcmd_free_nvlists(&zc); 1854219089Spjd return (-1); 1855185029Spjd } 1856185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 1857185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 1858185029Spjd val) != 0) { 1859185029Spjd zcmd_free_nvlists(&zc); 1860219089Spjd return (-1); 1861185029Spjd } 1862185029Spjd if (zplprops) 1863185029Spjd nvlist_free(zplprops); 1864185029Spjd zcmd_free_nvlists(&zc); 1865185029Spjd break; 1866185029Spjd 1867168404Spjd default: 1868185029Spjd switch (zfs_prop_get_type(prop)) { 1869185029Spjd case PROP_TYPE_NUMBER: 1870185029Spjd case PROP_TYPE_INDEX: 1871185029Spjd *val = getprop_uint64(zhp, prop, source); 1872185029Spjd /* 1873209962Smm * If we tried to use a default value for a 1874185029Spjd * readonly property, it means that it was not 1875219089Spjd * present. 1876185029Spjd */ 1877185029Spjd if (zfs_prop_readonly(prop) && 1878219089Spjd *source != NULL && (*source)[0] == '\0') { 1879219089Spjd *source = NULL; 1880185029Spjd } 1881185029Spjd break; 1882185029Spjd 1883185029Spjd case PROP_TYPE_STRING: 1884185029Spjd default: 1885185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 1886185029Spjd "cannot get non-numeric property")); 1887185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 1888185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 1889185029Spjd } 1890168404Spjd } 1891168404Spjd 1892168404Spjd return (0); 1893168404Spjd} 1894168404Spjd 1895168404Spjd/* 1896168404Spjd * Calculate the source type, given the raw source string. 1897168404Spjd */ 1898168404Spjdstatic void 1899185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 1900168404Spjd char *statbuf, size_t statlen) 1901168404Spjd{ 1902185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 1903168404Spjd return; 1904168404Spjd 1905168404Spjd if (source == NULL) { 1906185029Spjd *srctype = ZPROP_SRC_NONE; 1907168404Spjd } else if (source[0] == '\0') { 1908185029Spjd *srctype = ZPROP_SRC_DEFAULT; 1909219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 1910219089Spjd *srctype = ZPROP_SRC_RECEIVED; 1911168404Spjd } else { 1912168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 1913185029Spjd *srctype = ZPROP_SRC_LOCAL; 1914168404Spjd } else { 1915168404Spjd (void) strlcpy(statbuf, source, statlen); 1916185029Spjd *srctype = ZPROP_SRC_INHERITED; 1917168404Spjd } 1918168404Spjd } 1919168404Spjd 1920168404Spjd} 1921168404Spjd 1922219089Spjdint 1923219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 1924219089Spjd size_t proplen, boolean_t literal) 1925219089Spjd{ 1926219089Spjd zfs_prop_t prop; 1927219089Spjd int err = 0; 1928219089Spjd 1929219089Spjd if (zhp->zfs_recvd_props == NULL) 1930219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 1931219089Spjd return (-1); 1932219089Spjd 1933219089Spjd prop = zfs_name_to_prop(propname); 1934219089Spjd 1935219089Spjd if (prop != ZPROP_INVAL) { 1936219089Spjd uint64_t cookie; 1937219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 1938219089Spjd return (-1); 1939219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 1940219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 1941219089Spjd NULL, NULL, 0, literal); 1942219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 1943219089Spjd } else { 1944219089Spjd nvlist_t *propval; 1945219089Spjd char *recvdval; 1946219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 1947219089Spjd propname, &propval) != 0) 1948219089Spjd return (-1); 1949219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 1950219089Spjd &recvdval) == 0); 1951219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 1952219089Spjd } 1953219089Spjd 1954219089Spjd return (err == 0 ? 0 : -1); 1955219089Spjd} 1956219089Spjd 1957228103Smmstatic int 1958228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 1959228103Smm{ 1960228103Smm nvlist_t *value; 1961228103Smm nvpair_t *pair; 1962228103Smm 1963228103Smm value = zfs_get_clones_nvl(zhp); 1964228103Smm if (value == NULL) 1965228103Smm return (-1); 1966228103Smm 1967228103Smm propbuf[0] = '\0'; 1968228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 1969228103Smm pair = nvlist_next_nvpair(value, pair)) { 1970228103Smm if (propbuf[0] != '\0') 1971228103Smm (void) strlcat(propbuf, ",", proplen); 1972228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 1973228103Smm } 1974228103Smm 1975228103Smm return (0); 1976228103Smm} 1977228103Smm 1978228103Smmstruct get_clones_arg { 1979228103Smm uint64_t numclones; 1980228103Smm nvlist_t *value; 1981228103Smm const char *origin; 1982228103Smm char buf[ZFS_MAXNAMELEN]; 1983228103Smm}; 1984228103Smm 1985228103Smmint 1986228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 1987228103Smm{ 1988228103Smm struct get_clones_arg *gca = arg; 1989228103Smm 1990228103Smm if (gca->numclones == 0) { 1991228103Smm zfs_close(zhp); 1992228103Smm return (0); 1993228103Smm } 1994228103Smm 1995228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 1996228103Smm NULL, NULL, 0, B_TRUE) != 0) 1997228103Smm goto out; 1998228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 1999228103Smm if (nvlist_add_boolean(gca->value, zfs_get_name(zhp)) != 0) { 2000228103Smm zfs_close(zhp); 2001228103Smm return (no_memory(zhp->zfs_hdl)); 2002228103Smm } 2003228103Smm gca->numclones--; 2004228103Smm } 2005228103Smm 2006228103Smmout: 2007228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2008228103Smm zfs_close(zhp); 2009228103Smm return (0); 2010228103Smm} 2011228103Smm 2012228103Smmnvlist_t * 2013228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2014228103Smm{ 2015228103Smm nvlist_t *nv, *value; 2016228103Smm 2017228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2018228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2019228103Smm struct get_clones_arg gca; 2020228103Smm 2021228103Smm /* 2022228103Smm * if this is a snapshot, then the kernel wasn't able 2023228103Smm * to get the clones. Do it by slowly iterating. 2024228103Smm */ 2025228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2026228103Smm return (NULL); 2027228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2028228103Smm return (NULL); 2029228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2030228103Smm nvlist_free(nv); 2031228103Smm return (NULL); 2032228103Smm } 2033228103Smm 2034228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2035228103Smm gca.value = value; 2036228103Smm gca.origin = zhp->zfs_name; 2037228103Smm 2038228103Smm if (gca.numclones != 0) { 2039228103Smm zfs_handle_t *root; 2040228103Smm char pool[ZFS_MAXNAMELEN]; 2041228103Smm char *cp = pool; 2042228103Smm 2043228103Smm /* get the pool name */ 2044228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2045228103Smm (void) strsep(&cp, "/@"); 2046228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2047228103Smm ZFS_TYPE_FILESYSTEM); 2048228103Smm 2049228103Smm (void) get_clones_cb(root, &gca); 2050228103Smm } 2051228103Smm 2052228103Smm if (gca.numclones != 0 || 2053228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2054228103Smm nvlist_add_nvlist(zhp->zfs_props, 2055228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2056228103Smm nvlist_free(nv); 2057228103Smm nvlist_free(value); 2058228103Smm return (NULL); 2059228103Smm } 2060228103Smm nvlist_free(nv); 2061228103Smm nvlist_free(value); 2062228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2063228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2064228103Smm } 2065228103Smm 2066228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2067228103Smm 2068228103Smm return (value); 2069228103Smm} 2070228103Smm 2071168404Spjd/* 2072168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2073168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2074168404Spjd * human-readable form. 2075168404Spjd * 2076168404Spjd * Returns 0 on success, or -1 on error. 2077168404Spjd */ 2078168404Spjdint 2079168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2080185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2081168404Spjd{ 2082168404Spjd char *source = NULL; 2083168404Spjd uint64_t val; 2084168404Spjd char *str; 2085168404Spjd const char *strval; 2086219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2087168404Spjd 2088168404Spjd /* 2089168404Spjd * Check to see if this property applies to our object 2090168404Spjd */ 2091168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2092168404Spjd return (-1); 2093168404Spjd 2094219089Spjd if (received && zfs_prop_readonly(prop)) 2095219089Spjd return (-1); 2096219089Spjd 2097168404Spjd if (src) 2098185029Spjd *src = ZPROP_SRC_NONE; 2099168404Spjd 2100168404Spjd switch (prop) { 2101168404Spjd case ZFS_PROP_CREATION: 2102168404Spjd /* 2103168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2104168404Spjd * this into a string unless 'literal' is specified. 2105168404Spjd */ 2106168404Spjd { 2107168404Spjd val = getprop_uint64(zhp, prop, &source); 2108168404Spjd time_t time = (time_t)val; 2109168404Spjd struct tm t; 2110168404Spjd 2111168404Spjd if (literal || 2112168404Spjd localtime_r(&time, &t) == NULL || 2113168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2114168404Spjd &t) == 0) 2115168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2116168404Spjd } 2117168404Spjd break; 2118168404Spjd 2119168404Spjd case ZFS_PROP_MOUNTPOINT: 2120168404Spjd /* 2121168404Spjd * Getting the precise mountpoint can be tricky. 2122168404Spjd * 2123168404Spjd * - for 'none' or 'legacy', return those values. 2124168404Spjd * - for inherited mountpoints, we want to take everything 2125168404Spjd * after our ancestor and append it to the inherited value. 2126168404Spjd * 2127168404Spjd * If the pool has an alternate root, we want to prepend that 2128168404Spjd * root to any values we return. 2129168404Spjd */ 2130185029Spjd 2131168404Spjd str = getprop_string(zhp, prop, &source); 2132168404Spjd 2133185029Spjd if (str[0] == '/') { 2134185029Spjd char buf[MAXPATHLEN]; 2135185029Spjd char *root = buf; 2136219089Spjd const char *relpath; 2137168404Spjd 2138219089Spjd /* 2139219089Spjd * If we inherit the mountpoint, even from a dataset 2140219089Spjd * with a received value, the source will be the path of 2141219089Spjd * the dataset we inherit from. If source is 2142219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2143219089Spjd * inherited. 2144219089Spjd */ 2145219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2146219089Spjd relpath = ""; 2147219089Spjd } else { 2148219089Spjd relpath = zhp->zfs_name + strlen(source); 2149219089Spjd if (relpath[0] == '/') 2150219089Spjd relpath++; 2151219089Spjd } 2152185029Spjd 2153185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2154185029Spjd ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || 2155185029Spjd (strcmp(root, "-") == 0)) 2156185029Spjd root[0] = '\0'; 2157185029Spjd /* 2158185029Spjd * Special case an alternate root of '/'. This will 2159185029Spjd * avoid having multiple leading slashes in the 2160185029Spjd * mountpoint path. 2161185029Spjd */ 2162185029Spjd if (strcmp(root, "/") == 0) 2163185029Spjd root++; 2164185029Spjd 2165185029Spjd /* 2166185029Spjd * If the mountpoint is '/' then skip over this 2167185029Spjd * if we are obtaining either an alternate root or 2168185029Spjd * an inherited mountpoint. 2169185029Spjd */ 2170185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2171185029Spjd relpath[0] != '\0')) 2172168404Spjd str++; 2173168404Spjd 2174168404Spjd if (relpath[0] == '\0') 2175168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2176168404Spjd root, str); 2177168404Spjd else 2178168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2179168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2180168404Spjd relpath); 2181168404Spjd } else { 2182168404Spjd /* 'legacy' or 'none' */ 2183168404Spjd (void) strlcpy(propbuf, str, proplen); 2184168404Spjd } 2185168404Spjd 2186168404Spjd break; 2187168404Spjd 2188168404Spjd case ZFS_PROP_ORIGIN: 2189168404Spjd (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), 2190168404Spjd proplen); 2191168404Spjd /* 2192168404Spjd * If there is no parent at all, return failure to indicate that 2193168404Spjd * it doesn't apply to this dataset. 2194168404Spjd */ 2195168404Spjd if (propbuf[0] == '\0') 2196168404Spjd return (-1); 2197168404Spjd break; 2198168404Spjd 2199228103Smm case ZFS_PROP_CLONES: 2200228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2201228103Smm return (-1); 2202228103Smm break; 2203228103Smm 2204168404Spjd case ZFS_PROP_QUOTA: 2205185029Spjd case ZFS_PROP_REFQUOTA: 2206168404Spjd case ZFS_PROP_RESERVATION: 2207185029Spjd case ZFS_PROP_REFRESERVATION: 2208185029Spjd 2209168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2210168404Spjd return (-1); 2211168404Spjd 2212168404Spjd /* 2213168404Spjd * If quota or reservation is 0, we translate this into 'none' 2214168404Spjd * (unless literal is set), and indicate that it's the default 2215168404Spjd * value. Otherwise, we print the number nicely and indicate 2216168404Spjd * that its set locally. 2217168404Spjd */ 2218168404Spjd if (val == 0) { 2219168404Spjd if (literal) 2220168404Spjd (void) strlcpy(propbuf, "0", proplen); 2221168404Spjd else 2222168404Spjd (void) strlcpy(propbuf, "none", proplen); 2223168404Spjd } else { 2224168404Spjd if (literal) 2225168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2226168404Spjd (u_longlong_t)val); 2227168404Spjd else 2228168404Spjd zfs_nicenum(val, propbuf, proplen); 2229168404Spjd } 2230168404Spjd break; 2231168404Spjd 2232223623Smm case ZFS_PROP_REFRATIO: 2233168404Spjd case ZFS_PROP_COMPRESSRATIO: 2234168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2235168404Spjd return (-1); 2236219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2237219089Spjd (u_longlong_t)(val / 100), 2238219089Spjd (u_longlong_t)(val % 100)); 2239168404Spjd break; 2240168404Spjd 2241168404Spjd case ZFS_PROP_TYPE: 2242168404Spjd switch (zhp->zfs_type) { 2243168404Spjd case ZFS_TYPE_FILESYSTEM: 2244168404Spjd str = "filesystem"; 2245168404Spjd break; 2246168404Spjd case ZFS_TYPE_VOLUME: 2247168404Spjd str = "volume"; 2248168404Spjd break; 2249168404Spjd case ZFS_TYPE_SNAPSHOT: 2250168404Spjd str = "snapshot"; 2251168404Spjd break; 2252168404Spjd default: 2253168404Spjd abort(); 2254168404Spjd } 2255168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2256168404Spjd break; 2257168404Spjd 2258168404Spjd case ZFS_PROP_MOUNTED: 2259168404Spjd /* 2260168404Spjd * The 'mounted' property is a pseudo-property that described 2261168404Spjd * whether the filesystem is currently mounted. Even though 2262168404Spjd * it's a boolean value, the typical values of "on" and "off" 2263168404Spjd * don't make sense, so we translate to "yes" and "no". 2264168404Spjd */ 2265168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2266168404Spjd src, &source, &val) != 0) 2267168404Spjd return (-1); 2268168404Spjd if (val) 2269168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2270168404Spjd else 2271168404Spjd (void) strlcpy(propbuf, "no", proplen); 2272168404Spjd break; 2273168404Spjd 2274168404Spjd case ZFS_PROP_NAME: 2275168404Spjd /* 2276168404Spjd * The 'name' property is a pseudo-property derived from the 2277168404Spjd * dataset name. It is presented as a real property to simplify 2278168404Spjd * consumers. 2279168404Spjd */ 2280168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2281168404Spjd break; 2282168404Spjd 2283219089Spjd case ZFS_PROP_MLSLABEL: 2284219089Spjd { 2285219089Spjd#ifdef sun 2286219089Spjd m_label_t *new_sl = NULL; 2287219089Spjd char *ascii = NULL; /* human readable label */ 2288219089Spjd 2289219089Spjd (void) strlcpy(propbuf, 2290219089Spjd getprop_string(zhp, prop, &source), proplen); 2291219089Spjd 2292219089Spjd if (literal || (strcasecmp(propbuf, 2293219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2294219089Spjd break; 2295219089Spjd 2296219089Spjd /* 2297219089Spjd * Try to translate the internal hex string to 2298219089Spjd * human-readable output. If there are any 2299219089Spjd * problems just use the hex string. 2300219089Spjd */ 2301219089Spjd 2302219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2303219089Spjd L_NO_CORRECTION, NULL) == -1) { 2304219089Spjd m_label_free(new_sl); 2305219089Spjd break; 2306219089Spjd } 2307219089Spjd 2308219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2309219089Spjd DEF_NAMES) != 0) { 2310219089Spjd if (ascii) 2311219089Spjd free(ascii); 2312219089Spjd m_label_free(new_sl); 2313219089Spjd break; 2314219089Spjd } 2315219089Spjd m_label_free(new_sl); 2316219089Spjd 2317219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2318219089Spjd free(ascii); 2319219089Spjd#else /* !sun */ 2320219089Spjd propbuf[0] = '\0'; 2321219089Spjd#endif /* !sun */ 2322219089Spjd } 2323219089Spjd break; 2324219089Spjd 2325236705Smm case ZFS_PROP_GUID: 2326236705Smm /* 2327236705Smm * GUIDs are stored as numbers, but they are identifiers. 2328236705Smm * We don't want them to be pretty printed, because pretty 2329236705Smm * printing mangles the ID into a truncated and useless value. 2330236705Smm */ 2331236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2332236705Smm return (-1); 2333236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2334236705Smm break; 2335236705Smm 2336168404Spjd default: 2337185029Spjd switch (zfs_prop_get_type(prop)) { 2338185029Spjd case PROP_TYPE_NUMBER: 2339185029Spjd if (get_numeric_property(zhp, prop, src, 2340185029Spjd &source, &val) != 0) 2341185029Spjd return (-1); 2342185029Spjd if (literal) 2343185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2344185029Spjd (u_longlong_t)val); 2345185029Spjd else 2346185029Spjd zfs_nicenum(val, propbuf, proplen); 2347185029Spjd break; 2348185029Spjd 2349185029Spjd case PROP_TYPE_STRING: 2350185029Spjd (void) strlcpy(propbuf, 2351185029Spjd getprop_string(zhp, prop, &source), proplen); 2352185029Spjd break; 2353185029Spjd 2354185029Spjd case PROP_TYPE_INDEX: 2355185029Spjd if (get_numeric_property(zhp, prop, src, 2356185029Spjd &source, &val) != 0) 2357185029Spjd return (-1); 2358185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2359185029Spjd return (-1); 2360185029Spjd (void) strlcpy(propbuf, strval, proplen); 2361185029Spjd break; 2362185029Spjd 2363185029Spjd default: 2364185029Spjd abort(); 2365185029Spjd } 2366168404Spjd } 2367168404Spjd 2368168404Spjd get_source(zhp, src, source, statbuf, statlen); 2369168404Spjd 2370168404Spjd return (0); 2371168404Spjd} 2372168404Spjd 2373168404Spjd/* 2374168404Spjd * Utility function to get the given numeric property. Does no validation that 2375168404Spjd * the given property is the appropriate type; should only be used with 2376168404Spjd * hard-coded property types. 2377168404Spjd */ 2378168404Spjduint64_t 2379168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2380168404Spjd{ 2381168404Spjd char *source; 2382168404Spjd uint64_t val; 2383168404Spjd 2384185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2385168404Spjd 2386168404Spjd return (val); 2387168404Spjd} 2388168404Spjd 2389185029Spjdint 2390185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2391185029Spjd{ 2392185029Spjd char buf[64]; 2393185029Spjd 2394209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2395185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2396185029Spjd} 2397185029Spjd 2398168404Spjd/* 2399168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2400168404Spjd */ 2401168404Spjdint 2402168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2403185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2404168404Spjd{ 2405168404Spjd char *source; 2406168404Spjd 2407168404Spjd /* 2408168404Spjd * Check to see if this property applies to our object 2409168404Spjd */ 2410185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2411168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2412168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2413168404Spjd zfs_prop_to_name(prop))); 2414185029Spjd } 2415168404Spjd 2416168404Spjd if (src) 2417185029Spjd *src = ZPROP_SRC_NONE; 2418168404Spjd 2419168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2420168404Spjd return (-1); 2421168404Spjd 2422168404Spjd get_source(zhp, src, source, statbuf, statlen); 2423168404Spjd 2424168404Spjd return (0); 2425168404Spjd} 2426168404Spjd 2427209962Smmstatic int 2428209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2429209962Smm char **domainp, idmap_rid_t *ridp) 2430209962Smm{ 2431209962Smm#ifdef sun 2432209962Smm idmap_get_handle_t *get_hdl = NULL; 2433209962Smm idmap_stat status; 2434209962Smm int err = EINVAL; 2435209962Smm 2436219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2437209962Smm goto out; 2438209962Smm 2439209962Smm if (isuser) { 2440209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2441209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2442209962Smm } else { 2443209962Smm err = idmap_get_sidbygid(get_hdl, id, 2444209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2445209962Smm } 2446209962Smm if (err == IDMAP_SUCCESS && 2447209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2448209962Smm status == IDMAP_SUCCESS) 2449209962Smm err = 0; 2450209962Smm else 2451209962Smm err = EINVAL; 2452209962Smmout: 2453209962Smm if (get_hdl) 2454209962Smm idmap_get_destroy(get_hdl); 2455209962Smm return (err); 2456209962Smm#else /* !sun */ 2457209962Smm assert(!"invalid code path"); 2458209962Smm#endif /* !sun */ 2459209962Smm} 2460209962Smm 2461168404Spjd/* 2462209962Smm * convert the propname into parameters needed by kernel 2463209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2464209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2465209962Smm */ 2466209962Smmstatic int 2467209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2468209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2469209962Smm{ 2470209962Smm zfs_userquota_prop_t type; 2471209962Smm char *cp, *end; 2472209962Smm char *numericsid = NULL; 2473209962Smm boolean_t isuser; 2474209962Smm 2475209962Smm domain[0] = '\0'; 2476209962Smm 2477209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2478209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2479209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2480209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2481209962Smm break; 2482209962Smm } 2483209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2484209962Smm return (EINVAL); 2485209962Smm *typep = type; 2486209962Smm 2487209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2488209962Smm type == ZFS_PROP_USERUSED); 2489209962Smm 2490209962Smm cp = strchr(propname, '@') + 1; 2491209962Smm 2492209962Smm if (strchr(cp, '@')) { 2493209962Smm#ifdef sun 2494209962Smm /* 2495209962Smm * It's a SID name (eg "user@domain") that needs to be 2496209962Smm * turned into S-1-domainID-RID. 2497209962Smm */ 2498209962Smm directory_error_t e; 2499209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2500209962Smm return (ENOENT); 2501209962Smm if (isuser) { 2502209962Smm e = directory_sid_from_user_name(NULL, 2503209962Smm cp, &numericsid); 2504209962Smm } else { 2505209962Smm e = directory_sid_from_group_name(NULL, 2506209962Smm cp, &numericsid); 2507209962Smm } 2508209962Smm if (e != NULL) { 2509209962Smm directory_error_free(e); 2510209962Smm return (ENOENT); 2511209962Smm } 2512209962Smm if (numericsid == NULL) 2513209962Smm return (ENOENT); 2514209962Smm cp = numericsid; 2515209962Smm /* will be further decoded below */ 2516209962Smm#else /* !sun */ 2517219089Spjd return (ENOENT); 2518209962Smm#endif /* !sun */ 2519209962Smm } 2520209962Smm 2521209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2522209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2523209962Smm (void) strlcpy(domain, cp, domainlen); 2524209962Smm cp = strrchr(domain, '-'); 2525209962Smm *cp = '\0'; 2526209962Smm cp++; 2527209962Smm 2528209962Smm errno = 0; 2529209962Smm *ridp = strtoull(cp, &end, 10); 2530209962Smm if (numericsid) { 2531209962Smm free(numericsid); 2532209962Smm numericsid = NULL; 2533209962Smm } 2534209962Smm if (errno != 0 || *end != '\0') 2535209962Smm return (EINVAL); 2536209962Smm } else if (!isdigit(*cp)) { 2537209962Smm /* 2538209962Smm * It's a user/group name (eg "user") that needs to be 2539209962Smm * turned into a uid/gid 2540209962Smm */ 2541209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2542209962Smm return (ENOENT); 2543209962Smm if (isuser) { 2544209962Smm struct passwd *pw; 2545209962Smm pw = getpwnam(cp); 2546209962Smm if (pw == NULL) 2547209962Smm return (ENOENT); 2548209962Smm *ridp = pw->pw_uid; 2549209962Smm } else { 2550209962Smm struct group *gr; 2551209962Smm gr = getgrnam(cp); 2552209962Smm if (gr == NULL) 2553209962Smm return (ENOENT); 2554209962Smm *ridp = gr->gr_gid; 2555209962Smm } 2556209962Smm } else { 2557209962Smm /* It's a user/group ID (eg "12345"). */ 2558209962Smm uid_t id = strtoul(cp, &end, 10); 2559209962Smm idmap_rid_t rid; 2560209962Smm char *mapdomain; 2561209962Smm 2562209962Smm if (*end != '\0') 2563209962Smm return (EINVAL); 2564209962Smm if (id > MAXUID) { 2565209962Smm /* It's an ephemeral ID. */ 2566209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2567209962Smm &mapdomain, &rid) != 0) 2568209962Smm return (ENOENT); 2569209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2570209962Smm *ridp = rid; 2571209962Smm } else { 2572209962Smm *ridp = id; 2573209962Smm } 2574209962Smm } 2575209962Smm 2576209962Smm ASSERT3P(numericsid, ==, NULL); 2577209962Smm return (0); 2578209962Smm} 2579209962Smm 2580209962Smmstatic int 2581209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2582209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2583209962Smm{ 2584209962Smm int err; 2585209962Smm zfs_cmd_t zc = { 0 }; 2586209962Smm 2587228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2588209962Smm 2589209962Smm err = userquota_propname_decode(propname, 2590209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2591209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2592209962Smm zc.zc_objset_type = *typep; 2593209962Smm if (err) 2594209962Smm return (err); 2595209962Smm 2596209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2597209962Smm if (err) 2598209962Smm return (err); 2599209962Smm 2600209962Smm *propvalue = zc.zc_cookie; 2601209962Smm return (0); 2602209962Smm} 2603209962Smm 2604209962Smmint 2605209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2606209962Smm uint64_t *propvalue) 2607209962Smm{ 2608209962Smm zfs_userquota_prop_t type; 2609209962Smm 2610209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2611209962Smm &type)); 2612209962Smm} 2613209962Smm 2614209962Smmint 2615209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2616209962Smm char *propbuf, int proplen, boolean_t literal) 2617209962Smm{ 2618209962Smm int err; 2619209962Smm uint64_t propvalue; 2620209962Smm zfs_userquota_prop_t type; 2621209962Smm 2622209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2623209962Smm &type); 2624209962Smm 2625209962Smm if (err) 2626209962Smm return (err); 2627209962Smm 2628209962Smm if (literal) { 2629209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2630209962Smm } else if (propvalue == 0 && 2631209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2632209962Smm (void) strlcpy(propbuf, "none", proplen); 2633209962Smm } else { 2634209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2635209962Smm } 2636209962Smm return (0); 2637209962Smm} 2638209962Smm 2639228103Smmint 2640228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2641228103Smm uint64_t *propvalue) 2642168404Spjd{ 2643228103Smm int err; 2644228103Smm zfs_cmd_t zc = { 0 }; 2645228103Smm const char *snapname; 2646168404Spjd 2647228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2648168404Spjd 2649228103Smm snapname = strchr(propname, '@') + 1; 2650228103Smm if (strchr(snapname, '@')) { 2651228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2652228103Smm } else { 2653228103Smm /* snapname is the short name, append it to zhp's fsname */ 2654228103Smm char *cp; 2655209962Smm 2656228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2657228103Smm sizeof (zc.zc_value)); 2658228103Smm cp = strchr(zc.zc_value, '@'); 2659228103Smm if (cp != NULL) 2660228103Smm *cp = '\0'; 2661228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2662228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2663228103Smm } 2664209962Smm 2665228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2666228103Smm if (err) 2667228103Smm return (err); 2668228103Smm 2669228103Smm *propvalue = zc.zc_cookie; 2670228103Smm return (0); 2671209962Smm} 2672209962Smm 2673168404Spjdint 2674228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2675228103Smm char *propbuf, int proplen, boolean_t literal) 2676168404Spjd{ 2677228103Smm int err; 2678228103Smm uint64_t propvalue; 2679168404Spjd 2680228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2681185029Spjd 2682228103Smm if (err) 2683228103Smm return (err); 2684209962Smm 2685228103Smm if (literal) { 2686228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2687228103Smm } else { 2688228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2689168404Spjd } 2690228103Smm return (0); 2691168404Spjd} 2692168404Spjd 2693168404Spjdint 2694228103Smmzfs_get_snapused_int(zfs_handle_t *firstsnap, zfs_handle_t *lastsnap, 2695228103Smm uint64_t *usedp) 2696168404Spjd{ 2697228103Smm int err; 2698168404Spjd zfs_cmd_t zc = { 0 }; 2699168404Spjd 2700228103Smm (void) strlcpy(zc.zc_name, lastsnap->zfs_name, sizeof (zc.zc_name)); 2701228103Smm (void) strlcpy(zc.zc_value, firstsnap->zfs_name, sizeof (zc.zc_value)); 2702185029Spjd 2703228103Smm err = ioctl(lastsnap->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_SNAPS, &zc); 2704228103Smm if (err) 2705228103Smm return (err); 2706168404Spjd 2707228103Smm *usedp = zc.zc_cookie; 2708209962Smm 2709228103Smm return (0); 2710168404Spjd} 2711168404Spjd 2712168404Spjd/* 2713228103Smm * Returns the name of the given zfs handle. 2714168404Spjd */ 2715228103Smmconst char * 2716228103Smmzfs_get_name(const zfs_handle_t *zhp) 2717168404Spjd{ 2718228103Smm return (zhp->zfs_name); 2719228103Smm} 2720168404Spjd 2721228103Smm/* 2722228103Smm * Returns the type of the given zfs handle. 2723228103Smm */ 2724228103Smmzfs_type_t 2725228103Smmzfs_get_type(const zfs_handle_t *zhp) 2726228103Smm{ 2727228103Smm return (zhp->zfs_type); 2728168404Spjd} 2729168404Spjd 2730168404Spjd/* 2731219089Spjd * Is one dataset name a child dataset of another? 2732219089Spjd * 2733219089Spjd * Needs to handle these cases: 2734219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2735219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2736219089Spjd * Descendant? No. No. No. Yes. 2737219089Spjd */ 2738219089Spjdstatic boolean_t 2739219089Spjdis_descendant(const char *ds1, const char *ds2) 2740219089Spjd{ 2741219089Spjd size_t d1len = strlen(ds1); 2742219089Spjd 2743219089Spjd /* ds2 can't be a descendant if it's smaller */ 2744219089Spjd if (strlen(ds2) < d1len) 2745219089Spjd return (B_FALSE); 2746219089Spjd 2747219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2748219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2749219089Spjd} 2750219089Spjd 2751219089Spjd/* 2752168404Spjd * Given a complete name, return just the portion that refers to the parent. 2753228103Smm * Will return -1 if there is no parent (path is just the name of the 2754228103Smm * pool). 2755168404Spjd */ 2756168404Spjdstatic int 2757168404Spjdparent_name(const char *path, char *buf, size_t buflen) 2758168404Spjd{ 2759228103Smm char *slashp; 2760168404Spjd 2761228103Smm (void) strlcpy(buf, path, buflen); 2762228103Smm 2763228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 2764168404Spjd return (-1); 2765228103Smm *slashp = '\0'; 2766168404Spjd 2767168404Spjd return (0); 2768168404Spjd} 2769168404Spjd 2770168404Spjd/* 2771185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 2772185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 2773185029Spjd * closest existing ancestor for the given path. In prefixlen return the 2774185029Spjd * length of already existing prefix of the given path. We also fetch the 2775185029Spjd * 'zoned' property, which is used to validate property settings when creating 2776185029Spjd * new datasets. 2777168404Spjd */ 2778168404Spjdstatic int 2779185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 2780185029Spjd boolean_t accept_ancestor, int *prefixlen) 2781168404Spjd{ 2782168404Spjd zfs_cmd_t zc = { 0 }; 2783168404Spjd char parent[ZFS_MAXNAMELEN]; 2784168404Spjd char *slash; 2785168404Spjd zfs_handle_t *zhp; 2786168404Spjd char errbuf[1024]; 2787219089Spjd uint64_t is_zoned; 2788168404Spjd 2789209962Smm (void) snprintf(errbuf, sizeof (errbuf), 2790209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 2791168404Spjd 2792168404Spjd /* get parent, and check to see if this is just a pool */ 2793168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 2794168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2795168404Spjd "missing dataset name")); 2796168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 2797168404Spjd } 2798168404Spjd 2799168404Spjd /* check to see if the pool exists */ 2800168404Spjd if ((slash = strchr(parent, '/')) == NULL) 2801168404Spjd slash = parent + strlen(parent); 2802168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 2803168404Spjd zc.zc_name[slash - parent] = '\0'; 2804168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 2805168404Spjd errno == ENOENT) { 2806168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2807168404Spjd "no such pool '%s'"), zc.zc_name); 2808168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2809168404Spjd } 2810168404Spjd 2811168404Spjd /* check to see if the parent dataset exists */ 2812185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 2813185029Spjd if (errno == ENOENT && accept_ancestor) { 2814185029Spjd /* 2815185029Spjd * Go deeper to find an ancestor, give up on top level. 2816185029Spjd */ 2817185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 2818185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2819185029Spjd "no such pool '%s'"), zc.zc_name); 2820185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2821185029Spjd } 2822185029Spjd } else if (errno == ENOENT) { 2823168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2824168404Spjd "parent does not exist")); 2825168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 2826185029Spjd } else 2827168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 2828168404Spjd } 2829168404Spjd 2830219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 2831219089Spjd if (zoned != NULL) 2832219089Spjd *zoned = is_zoned; 2833219089Spjd 2834168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 2835219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 2836168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 2837168404Spjd zfs_close(zhp); 2838168404Spjd return (-1); 2839168404Spjd } 2840168404Spjd 2841168404Spjd /* make sure parent is a filesystem */ 2842168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 2843168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2844168404Spjd "parent is not a filesystem")); 2845168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 2846168404Spjd zfs_close(zhp); 2847168404Spjd return (-1); 2848168404Spjd } 2849168404Spjd 2850168404Spjd zfs_close(zhp); 2851185029Spjd if (prefixlen != NULL) 2852185029Spjd *prefixlen = strlen(parent); 2853168404Spjd return (0); 2854168404Spjd} 2855168404Spjd 2856168404Spjd/* 2857185029Spjd * Finds whether the dataset of the given type(s) exists. 2858185029Spjd */ 2859185029Spjdboolean_t 2860185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 2861185029Spjd{ 2862185029Spjd zfs_handle_t *zhp; 2863185029Spjd 2864185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 2865185029Spjd return (B_FALSE); 2866185029Spjd 2867185029Spjd /* 2868185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 2869185029Spjd */ 2870185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 2871185029Spjd int ds_type = zhp->zfs_type; 2872185029Spjd 2873185029Spjd zfs_close(zhp); 2874185029Spjd if (types & ds_type) 2875185029Spjd return (B_TRUE); 2876185029Spjd } 2877185029Spjd return (B_FALSE); 2878185029Spjd} 2879185029Spjd 2880185029Spjd/* 2881185029Spjd * Given a path to 'target', create all the ancestors between 2882185029Spjd * the prefixlen portion of the path, and the target itself. 2883185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 2884185029Spjd */ 2885185029Spjdint 2886185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 2887185029Spjd{ 2888185029Spjd zfs_handle_t *h; 2889185029Spjd char *cp; 2890185029Spjd const char *opname; 2891185029Spjd 2892185029Spjd /* make sure prefix exists */ 2893185029Spjd cp = target + prefixlen; 2894185029Spjd if (*cp != '/') { 2895185029Spjd assert(strchr(cp, '/') == NULL); 2896185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2897185029Spjd } else { 2898185029Spjd *cp = '\0'; 2899185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2900185029Spjd *cp = '/'; 2901185029Spjd } 2902185029Spjd if (h == NULL) 2903185029Spjd return (-1); 2904185029Spjd zfs_close(h); 2905185029Spjd 2906185029Spjd /* 2907185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 2908185029Spjd * up to the prefixlen-long one. 2909185029Spjd */ 2910185029Spjd for (cp = target + prefixlen + 1; 2911185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 2912185029Spjd char *logstr; 2913185029Spjd 2914185029Spjd *cp = '\0'; 2915185029Spjd 2916185029Spjd h = make_dataset_handle(hdl, target); 2917185029Spjd if (h) { 2918185029Spjd /* it already exists, nothing to do here */ 2919185029Spjd zfs_close(h); 2920185029Spjd continue; 2921185029Spjd } 2922185029Spjd 2923185029Spjd logstr = hdl->libzfs_log_str; 2924185029Spjd hdl->libzfs_log_str = NULL; 2925185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 2926185029Spjd NULL) != 0) { 2927185029Spjd hdl->libzfs_log_str = logstr; 2928185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 2929185029Spjd goto ancestorerr; 2930185029Spjd } 2931185029Spjd 2932185029Spjd hdl->libzfs_log_str = logstr; 2933185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 2934185029Spjd if (h == NULL) { 2935185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 2936185029Spjd goto ancestorerr; 2937185029Spjd } 2938185029Spjd 2939185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 2940185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 2941185029Spjd goto ancestorerr; 2942185029Spjd } 2943185029Spjd 2944185029Spjd if (zfs_share(h) != 0) { 2945185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 2946185029Spjd goto ancestorerr; 2947185029Spjd } 2948185029Spjd 2949185029Spjd zfs_close(h); 2950185029Spjd } 2951185029Spjd 2952185029Spjd return (0); 2953185029Spjd 2954185029Spjdancestorerr: 2955185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2956185029Spjd "failed to %s ancestor '%s'"), opname, target); 2957185029Spjd return (-1); 2958185029Spjd} 2959185029Spjd 2960185029Spjd/* 2961185029Spjd * Creates non-existing ancestors of the given path. 2962185029Spjd */ 2963185029Spjdint 2964185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 2965185029Spjd{ 2966185029Spjd int prefix; 2967185029Spjd char *path_copy; 2968185029Spjd int rc; 2969185029Spjd 2970219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 2971185029Spjd return (-1); 2972185029Spjd 2973185029Spjd if ((path_copy = strdup(path)) != NULL) { 2974185029Spjd rc = create_parents(hdl, path_copy, prefix); 2975185029Spjd free(path_copy); 2976185029Spjd } 2977185029Spjd if (path_copy == NULL || rc != 0) 2978185029Spjd return (-1); 2979185029Spjd 2980185029Spjd return (0); 2981185029Spjd} 2982185029Spjd 2983185029Spjd/* 2984168404Spjd * Create a new filesystem or volume. 2985168404Spjd */ 2986168404Spjdint 2987168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 2988168404Spjd nvlist_t *props) 2989168404Spjd{ 2990168404Spjd zfs_cmd_t zc = { 0 }; 2991168404Spjd int ret; 2992168404Spjd uint64_t size = 0; 2993168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 2994168404Spjd char errbuf[1024]; 2995168404Spjd uint64_t zoned; 2996168404Spjd 2997168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 2998168404Spjd "cannot create '%s'"), path); 2999168404Spjd 3000168404Spjd /* validate the path, taking care to note the extended error message */ 3001185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3002168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3003168404Spjd 3004168404Spjd /* validate parents exist */ 3005185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3006168404Spjd return (-1); 3007168404Spjd 3008168404Spjd /* 3009168404Spjd * The failure modes when creating a dataset of a different type over 3010168404Spjd * one that already exists is a little strange. In particular, if you 3011168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3012168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3013168404Spjd * first try to see if the dataset exists. 3014168404Spjd */ 3015168404Spjd (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name)); 3016185029Spjd if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { 3017168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3018168404Spjd "dataset already exists")); 3019168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3020168404Spjd } 3021168404Spjd 3022168404Spjd if (type == ZFS_TYPE_VOLUME) 3023168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3024168404Spjd else 3025168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3026168404Spjd 3027185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3028168404Spjd zoned, NULL, errbuf)) == 0) 3029168404Spjd return (-1); 3030168404Spjd 3031168404Spjd if (type == ZFS_TYPE_VOLUME) { 3032168404Spjd /* 3033168404Spjd * If we are creating a volume, the size and block size must 3034168404Spjd * satisfy a few restraints. First, the blocksize must be a 3035168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3036168404Spjd * volsize must be a multiple of the block size, and cannot be 3037168404Spjd * zero. 3038168404Spjd */ 3039168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3040168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3041168404Spjd nvlist_free(props); 3042168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3043168404Spjd "missing volume size")); 3044168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3045168404Spjd } 3046168404Spjd 3047168404Spjd if ((ret = nvlist_lookup_uint64(props, 3048168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3049168404Spjd &blocksize)) != 0) { 3050168404Spjd if (ret == ENOENT) { 3051168404Spjd blocksize = zfs_prop_default_numeric( 3052168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3053168404Spjd } else { 3054168404Spjd nvlist_free(props); 3055168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3056168404Spjd "missing volume block size")); 3057168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3058168404Spjd } 3059168404Spjd } 3060168404Spjd 3061168404Spjd if (size == 0) { 3062168404Spjd nvlist_free(props); 3063168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3064168404Spjd "volume size cannot be zero")); 3065168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3066168404Spjd } 3067168404Spjd 3068168404Spjd if (size % blocksize != 0) { 3069168404Spjd nvlist_free(props); 3070168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3071168404Spjd "volume size must be a multiple of volume block " 3072168404Spjd "size")); 3073168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3074168404Spjd } 3075168404Spjd } 3076168404Spjd 3077185029Spjd if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0) 3078168404Spjd return (-1); 3079168404Spjd nvlist_free(props); 3080168404Spjd 3081168404Spjd /* create the dataset */ 3082185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); 3083168404Spjd 3084168404Spjd zcmd_free_nvlists(&zc); 3085168404Spjd 3086168404Spjd /* check for failure */ 3087168404Spjd if (ret != 0) { 3088168404Spjd char parent[ZFS_MAXNAMELEN]; 3089168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3090168404Spjd 3091168404Spjd switch (errno) { 3092168404Spjd case ENOENT: 3093168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3094168404Spjd "no such parent '%s'"), parent); 3095168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3096168404Spjd 3097168404Spjd case EINVAL: 3098168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3099168404Spjd "parent '%s' is not a filesystem"), parent); 3100168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3101168404Spjd 3102168404Spjd case EDOM: 3103168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3104168404Spjd "volume block size must be power of 2 from " 3105168404Spjd "%u to %uk"), 3106168404Spjd (uint_t)SPA_MINBLOCKSIZE, 3107168404Spjd (uint_t)SPA_MAXBLOCKSIZE >> 10); 3108168404Spjd 3109168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3110168404Spjd 3111185029Spjd case ENOTSUP: 3112185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3113185029Spjd "pool must be upgraded to set this " 3114185029Spjd "property or value")); 3115185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3116168404Spjd#ifdef _ILP32 3117168404Spjd case EOVERFLOW: 3118168404Spjd /* 3119168404Spjd * This platform can't address a volume this big. 3120168404Spjd */ 3121168404Spjd if (type == ZFS_TYPE_VOLUME) 3122168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3123168404Spjd errbuf)); 3124168404Spjd#endif 3125168404Spjd /* FALLTHROUGH */ 3126168404Spjd default: 3127168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3128168404Spjd } 3129168404Spjd } 3130168404Spjd 3131168404Spjd return (0); 3132168404Spjd} 3133168404Spjd 3134168404Spjd/* 3135168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3136168404Spjd * isn't mounted, and that there are no active dependents. 3137168404Spjd */ 3138168404Spjdint 3139219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3140168404Spjd{ 3141168404Spjd zfs_cmd_t zc = { 0 }; 3142168404Spjd 3143168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3144168404Spjd 3145168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3146168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3147168404Spjd } else { 3148168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3149168404Spjd } 3150168404Spjd 3151219089Spjd zc.zc_defer_destroy = defer; 3152185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0) { 3153168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3154168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3155168404Spjd zhp->zfs_name)); 3156168404Spjd } 3157168404Spjd 3158168404Spjd remove_mountpoint(zhp); 3159168404Spjd 3160168404Spjd return (0); 3161168404Spjd} 3162168404Spjd 3163168404Spjdstruct destroydata { 3164228103Smm nvlist_t *nvl; 3165228103Smm const char *snapname; 3166168404Spjd}; 3167168404Spjd 3168168404Spjdstatic int 3169219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3170168404Spjd{ 3171168404Spjd struct destroydata *dd = arg; 3172168404Spjd zfs_handle_t *szhp; 3173168404Spjd char name[ZFS_MAXNAMELEN]; 3174219089Spjd int rv = 0; 3175168404Spjd 3176228103Smm (void) snprintf(name, sizeof (name), 3177228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3178168404Spjd 3179168404Spjd szhp = make_dataset_handle(zhp->zfs_hdl, name); 3180168404Spjd if (szhp) { 3181228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3182168404Spjd zfs_close(szhp); 3183168404Spjd } 3184168404Spjd 3185228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3186228103Smm zfs_close(zhp); 3187168404Spjd return (rv); 3188168404Spjd} 3189168404Spjd 3190168404Spjd/* 3191168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3192168404Spjd */ 3193168404Spjdint 3194219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3195168404Spjd{ 3196168404Spjd int ret; 3197168404Spjd struct destroydata dd = { 0 }; 3198168404Spjd 3199168404Spjd dd.snapname = snapname; 3200228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3201228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3202168404Spjd 3203228103Smm if (nvlist_next_nvpair(dd.nvl, NULL) == NULL) { 3204228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3205168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3206228103Smm zhp->zfs_name, snapname); 3207228103Smm } else { 3208228103Smm ret = zfs_destroy_snaps_nvl(zhp, dd.nvl, defer); 3209168404Spjd } 3210228103Smm nvlist_free(dd.nvl); 3211228103Smm return (ret); 3212228103Smm} 3213168404Spjd 3214228103Smm/* 3215228103Smm * Destroys all the snapshots named in the nvlist. They must be underneath 3216228103Smm * the zhp (either snapshots of it, or snapshots of its descendants). 3217228103Smm */ 3218228103Smmint 3219228103Smmzfs_destroy_snaps_nvl(zfs_handle_t *zhp, nvlist_t *snaps, boolean_t defer) 3220228103Smm{ 3221228103Smm int ret; 3222228103Smm zfs_cmd_t zc = { 0 }; 3223228103Smm 3224168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3225228103Smm if (zcmd_write_src_nvlist(zhp->zfs_hdl, &zc, snaps) != 0) 3226228103Smm return (-1); 3227219089Spjd zc.zc_defer_destroy = defer; 3228168404Spjd 3229228103Smm ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS_NVL, &zc); 3230168404Spjd if (ret != 0) { 3231168404Spjd char errbuf[1024]; 3232168404Spjd 3233168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3234228103Smm "cannot destroy snapshots in %s"), zc.zc_name); 3235168404Spjd 3236168404Spjd switch (errno) { 3237168404Spjd case EEXIST: 3238168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3239168404Spjd "snapshot is cloned")); 3240168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf)); 3241168404Spjd 3242168404Spjd default: 3243168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3244168404Spjd errbuf)); 3245168404Spjd } 3246168404Spjd } 3247168404Spjd 3248168404Spjd return (0); 3249168404Spjd} 3250168404Spjd 3251168404Spjd/* 3252168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3253168404Spjd */ 3254168404Spjdint 3255168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3256168404Spjd{ 3257168404Spjd zfs_cmd_t zc = { 0 }; 3258168404Spjd char parent[ZFS_MAXNAMELEN]; 3259168404Spjd int ret; 3260168404Spjd char errbuf[1024]; 3261168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3262168404Spjd zfs_type_t type; 3263168404Spjd uint64_t zoned; 3264168404Spjd 3265168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3266168404Spjd 3267168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3268168404Spjd "cannot create '%s'"), target); 3269168404Spjd 3270228103Smm /* validate the target/clone name */ 3271185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3272168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3273168404Spjd 3274168404Spjd /* validate parents exist */ 3275185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3276168404Spjd return (-1); 3277168404Spjd 3278168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3279168404Spjd 3280168404Spjd /* do the clone */ 3281168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3282168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3283168404Spjd type = ZFS_TYPE_VOLUME; 3284168404Spjd } else { 3285168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3286168404Spjd type = ZFS_TYPE_FILESYSTEM; 3287168404Spjd } 3288168404Spjd 3289168404Spjd if (props) { 3290185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3291185029Spjd zhp, errbuf)) == NULL) 3292168404Spjd return (-1); 3293168404Spjd 3294185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 3295168404Spjd nvlist_free(props); 3296168404Spjd return (-1); 3297168404Spjd } 3298168404Spjd 3299168404Spjd nvlist_free(props); 3300168404Spjd } 3301168404Spjd 3302168404Spjd (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name)); 3303168404Spjd (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value)); 3304185029Spjd ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc); 3305168404Spjd 3306168404Spjd zcmd_free_nvlists(&zc); 3307168404Spjd 3308168404Spjd if (ret != 0) { 3309168404Spjd switch (errno) { 3310168404Spjd 3311168404Spjd case ENOENT: 3312168404Spjd /* 3313168404Spjd * The parent doesn't exist. We should have caught this 3314168404Spjd * above, but there may a race condition that has since 3315168404Spjd * destroyed the parent. 3316168404Spjd * 3317168404Spjd * At this point, we don't know whether it's the source 3318168404Spjd * that doesn't exist anymore, or whether the target 3319168404Spjd * dataset doesn't exist. 3320168404Spjd */ 3321168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3322168404Spjd "no such parent '%s'"), parent); 3323168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3324168404Spjd 3325168404Spjd case EXDEV: 3326168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3327168404Spjd "source and target pools differ")); 3328168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3329168404Spjd errbuf)); 3330168404Spjd 3331168404Spjd default: 3332168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3333168404Spjd errbuf)); 3334168404Spjd } 3335168404Spjd } 3336168404Spjd 3337168404Spjd return (ret); 3338168404Spjd} 3339168404Spjd 3340168404Spjd/* 3341168404Spjd * Promotes the given clone fs to be the clone parent. 3342168404Spjd */ 3343168404Spjdint 3344168404Spjdzfs_promote(zfs_handle_t *zhp) 3345168404Spjd{ 3346168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3347168404Spjd zfs_cmd_t zc = { 0 }; 3348168404Spjd char parent[MAXPATHLEN]; 3349168404Spjd int ret; 3350168404Spjd char errbuf[1024]; 3351168404Spjd 3352168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3353168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3354168404Spjd 3355168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3356168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3357168404Spjd "snapshots can not be promoted")); 3358168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3359168404Spjd } 3360168404Spjd 3361185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3362168404Spjd if (parent[0] == '\0') { 3363168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3364168404Spjd "not a cloned filesystem")); 3365168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3366168404Spjd } 3367168404Spjd 3368185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3369168404Spjd sizeof (zc.zc_value)); 3370168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3371185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3372168404Spjd 3373168404Spjd if (ret != 0) { 3374168404Spjd int save_errno = errno; 3375168404Spjd 3376168404Spjd switch (save_errno) { 3377168404Spjd case EEXIST: 3378219089Spjd /* There is a conflicting snapshot name. */ 3379168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3380219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3381219089Spjd zc.zc_string, parent); 3382168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3383168404Spjd 3384168404Spjd default: 3385168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3386168404Spjd } 3387168404Spjd } 3388168404Spjd return (ret); 3389168404Spjd} 3390168404Spjd 3391168404Spjd/* 3392168404Spjd * Takes a snapshot of the given dataset. 3393168404Spjd */ 3394168404Spjdint 3395185029Spjdzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3396185029Spjd nvlist_t *props) 3397168404Spjd{ 3398168404Spjd const char *delim; 3399185029Spjd char parent[ZFS_MAXNAMELEN]; 3400168404Spjd zfs_handle_t *zhp; 3401168404Spjd zfs_cmd_t zc = { 0 }; 3402168404Spjd int ret; 3403168404Spjd char errbuf[1024]; 3404168404Spjd 3405168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3406168404Spjd "cannot snapshot '%s'"), path); 3407168404Spjd 3408168404Spjd /* validate the target name */ 3409185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3410168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3411168404Spjd 3412185029Spjd if (props) { 3413185029Spjd if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3414185029Spjd props, B_FALSE, NULL, errbuf)) == NULL) 3415185029Spjd return (-1); 3416185029Spjd 3417185029Spjd if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 3418185029Spjd nvlist_free(props); 3419185029Spjd return (-1); 3420185029Spjd } 3421185029Spjd 3422185029Spjd nvlist_free(props); 3423185029Spjd } 3424185029Spjd 3425168404Spjd /* make sure the parent exists and is of the appropriate type */ 3426168404Spjd delim = strchr(path, '@'); 3427168404Spjd (void) strncpy(parent, path, delim - path); 3428168404Spjd parent[delim - path] = '\0'; 3429168404Spjd 3430168404Spjd if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM | 3431168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3432185029Spjd zcmd_free_nvlists(&zc); 3433168404Spjd return (-1); 3434168404Spjd } 3435168404Spjd 3436168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3437168404Spjd (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value)); 3438185029Spjd if (ZFS_IS_VOLUME(zhp)) 3439185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3440185029Spjd else 3441185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3442168404Spjd zc.zc_cookie = recursive; 3443185029Spjd ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc); 3444168404Spjd 3445185029Spjd zcmd_free_nvlists(&zc); 3446185029Spjd 3447168404Spjd /* 3448168404Spjd * if it was recursive, the one that actually failed will be in 3449168404Spjd * zc.zc_name. 3450168404Spjd */ 3451219089Spjd if (ret != 0) { 3452185029Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3453185029Spjd "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); 3454219089Spjd (void) zfs_standard_error(hdl, errno, errbuf); 3455168404Spjd } 3456168404Spjd 3457168404Spjd zfs_close(zhp); 3458168404Spjd 3459168404Spjd return (ret); 3460168404Spjd} 3461168404Spjd 3462168404Spjd/* 3463168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3464168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3465168404Spjd * is a dependent and we should just destroy it without checking the transaction 3466168404Spjd * group. 3467168404Spjd */ 3468168404Spjdtypedef struct rollback_data { 3469168404Spjd const char *cb_target; /* the snapshot */ 3470168404Spjd uint64_t cb_create; /* creation time reference */ 3471185029Spjd boolean_t cb_error; 3472168404Spjd boolean_t cb_dependent; 3473185029Spjd boolean_t cb_force; 3474168404Spjd} rollback_data_t; 3475168404Spjd 3476168404Spjdstatic int 3477168404Spjdrollback_destroy(zfs_handle_t *zhp, void *data) 3478168404Spjd{ 3479168404Spjd rollback_data_t *cbp = data; 3480168404Spjd 3481168404Spjd if (!cbp->cb_dependent) { 3482168404Spjd if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && 3483168404Spjd zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && 3484168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > 3485168404Spjd cbp->cb_create) { 3486185029Spjd char *logstr; 3487168404Spjd 3488168404Spjd cbp->cb_dependent = B_TRUE; 3489185029Spjd cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3490185029Spjd rollback_destroy, cbp); 3491168404Spjd cbp->cb_dependent = B_FALSE; 3492168404Spjd 3493185029Spjd logstr = zhp->zfs_hdl->libzfs_log_str; 3494185029Spjd zhp->zfs_hdl->libzfs_log_str = NULL; 3495219089Spjd cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3496185029Spjd zhp->zfs_hdl->libzfs_log_str = logstr; 3497168404Spjd } 3498168404Spjd } else { 3499185029Spjd /* We must destroy this clone; first unmount it */ 3500185029Spjd prop_changelist_t *clp; 3501185029Spjd 3502185029Spjd clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3503185029Spjd cbp->cb_force ? MS_FORCE: 0); 3504185029Spjd if (clp == NULL || changelist_prefix(clp) != 0) { 3505185029Spjd cbp->cb_error = B_TRUE; 3506185029Spjd zfs_close(zhp); 3507185029Spjd return (0); 3508185029Spjd } 3509219089Spjd if (zfs_destroy(zhp, B_FALSE) != 0) 3510185029Spjd cbp->cb_error = B_TRUE; 3511168404Spjd else 3512185029Spjd changelist_remove(clp, zhp->zfs_name); 3513185029Spjd (void) changelist_postfix(clp); 3514185029Spjd changelist_free(clp); 3515168404Spjd } 3516168404Spjd 3517168404Spjd zfs_close(zhp); 3518168404Spjd return (0); 3519168404Spjd} 3520168404Spjd 3521168404Spjd/* 3522168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3523168404Spjd * data changes since then and making it the active dataset. 3524168404Spjd * 3525168404Spjd * Any snapshots more recent than the target are destroyed, along with 3526168404Spjd * their dependents. 3527168404Spjd */ 3528168404Spjdint 3529185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3530168404Spjd{ 3531168404Spjd rollback_data_t cb = { 0 }; 3532185029Spjd int err; 3533185029Spjd zfs_cmd_t zc = { 0 }; 3534185029Spjd boolean_t restore_resv = 0; 3535185029Spjd uint64_t old_volsize, new_volsize; 3536185029Spjd zfs_prop_t resv_prop; 3537168404Spjd 3538185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3539185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3540168404Spjd 3541168404Spjd /* 3542168404Spjd * Destroy all recent snapshots and its dependends. 3543168404Spjd */ 3544185029Spjd cb.cb_force = force; 3545168404Spjd cb.cb_target = snap->zfs_name; 3546168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3547168404Spjd (void) zfs_iter_children(zhp, rollback_destroy, &cb); 3548168404Spjd 3549185029Spjd if (cb.cb_error) 3550185029Spjd return (-1); 3551168404Spjd 3552168404Spjd /* 3553168404Spjd * Now that we have verified that the snapshot is the latest, 3554168404Spjd * rollback to the given snapshot. 3555168404Spjd */ 3556168404Spjd 3557185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3558185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3559185029Spjd return (-1); 3560185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3561185029Spjd restore_resv = 3562185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3563168404Spjd } 3564168404Spjd 3565185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3566185029Spjd 3567185029Spjd if (ZFS_IS_VOLUME(zhp)) 3568185029Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3569185029Spjd else 3570185029Spjd zc.zc_objset_type = DMU_OST_ZFS; 3571185029Spjd 3572168404Spjd /* 3573185029Spjd * We rely on zfs_iter_children() to verify that there are no 3574185029Spjd * newer snapshots for the given dataset. Therefore, we can 3575185029Spjd * simply pass the name on to the ioctl() call. There is still 3576185029Spjd * an unlikely race condition where the user has taken a 3577185029Spjd * snapshot since we verified that this was the most recent. 3578185029Spjd * 3579168404Spjd */ 3580185029Spjd if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { 3581185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3582185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3583185029Spjd zhp->zfs_name); 3584185029Spjd return (err); 3585185029Spjd } 3586168404Spjd 3587185029Spjd /* 3588185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3589185029Spjd * rollback reservation and the volsize has changed then set 3590185029Spjd * the reservation property to the post-rollback volsize. 3591185029Spjd * Make a new handle since the rollback closed the dataset. 3592185029Spjd */ 3593185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3594185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3595185029Spjd if (restore_resv) { 3596185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3597185029Spjd if (old_volsize != new_volsize) 3598185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3599185029Spjd new_volsize); 3600185029Spjd } 3601185029Spjd zfs_close(zhp); 3602185029Spjd } 3603185029Spjd return (err); 3604168404Spjd} 3605168404Spjd 3606168404Spjd/* 3607168404Spjd * Renames the given dataset. 3608168404Spjd */ 3609168404Spjdint 3610226705Spjdzfs_rename(zfs_handle_t *zhp, const char *target, renameflags_t flags) 3611168404Spjd{ 3612168404Spjd int ret; 3613168404Spjd zfs_cmd_t zc = { 0 }; 3614168404Spjd char *delim; 3615168676Spjd prop_changelist_t *cl = NULL; 3616168676Spjd zfs_handle_t *zhrp = NULL; 3617168676Spjd char *parentname = NULL; 3618168404Spjd char parent[ZFS_MAXNAMELEN]; 3619226676Spjd char property[ZFS_MAXPROPLEN]; 3620168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3621168404Spjd char errbuf[1024]; 3622168404Spjd 3623168404Spjd /* if we have the same exact name, just return success */ 3624168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3625168404Spjd return (0); 3626168404Spjd 3627168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3628168404Spjd "cannot rename to '%s'"), target); 3629168404Spjd 3630168404Spjd /* 3631168404Spjd * Make sure the target name is valid 3632168404Spjd */ 3633168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3634168404Spjd if ((strchr(target, '@') == NULL) || 3635168404Spjd *target == '@') { 3636168404Spjd /* 3637168404Spjd * Snapshot target name is abbreviated, 3638168404Spjd * reconstruct full dataset name 3639168404Spjd */ 3640168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3641168404Spjd sizeof (parent)); 3642168404Spjd delim = strchr(parent, '@'); 3643168404Spjd if (strchr(target, '@') == NULL) 3644168404Spjd *(++delim) = '\0'; 3645168404Spjd else 3646168404Spjd *delim = '\0'; 3647168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3648168404Spjd target = parent; 3649168404Spjd } else { 3650168404Spjd /* 3651168404Spjd * Make sure we're renaming within the same dataset. 3652168404Spjd */ 3653168404Spjd delim = strchr(target, '@'); 3654168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3655168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3656168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3657168404Spjd "snapshots must be part of same " 3658168404Spjd "dataset")); 3659168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3660168404Spjd errbuf)); 3661168404Spjd } 3662168404Spjd } 3663185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3664168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3665168404Spjd } else { 3666226705Spjd if (flags.recurse) { 3667168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3668168676Spjd "recursive rename must be a snapshot")); 3669168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3670168676Spjd } 3671168676Spjd 3672185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3673168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3674168404Spjd 3675168404Spjd /* validate parents */ 3676219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3677168404Spjd return (-1); 3678168404Spjd 3679168404Spjd /* make sure we're in the same pool */ 3680168404Spjd verify((delim = strchr(target, '/')) != NULL); 3681168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3682168404Spjd zhp->zfs_name[delim - target] != '/') { 3683168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3684168404Spjd "datasets must be within same pool")); 3685168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 3686168404Spjd } 3687168404Spjd 3688168404Spjd /* new name cannot be a child of the current dataset name */ 3689219089Spjd if (is_descendant(zhp->zfs_name, target)) { 3690168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3691219089Spjd "New dataset name cannot be a descendant of " 3692168404Spjd "current dataset name")); 3693168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3694168404Spjd } 3695168404Spjd } 3696168404Spjd 3697168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 3698168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 3699168404Spjd 3700168404Spjd if (getzoneid() == GLOBAL_ZONEID && 3701168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 3702168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3703168404Spjd "dataset is used in a non-global zone")); 3704168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 3705168404Spjd } 3706168404Spjd 3707226705Spjd /* 3708226705Spjd * Avoid unmounting file systems with mountpoint property set to 3709226705Spjd * 'legacy' or 'none' even if -u option is not given. 3710226705Spjd */ 3711226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 3712226705Spjd !flags.recurse && !flags.nounmount && 3713226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 3714226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 3715226705Spjd (strcmp(property, "legacy") == 0 || 3716226705Spjd strcmp(property, "none") == 0)) { 3717226705Spjd flags.nounmount = B_TRUE; 3718226705Spjd } 3719168404Spjd 3720226705Spjd if (flags.recurse) { 3721226705Spjd 3722185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 3723185029Spjd if (parentname == NULL) { 3724185029Spjd ret = -1; 3725185029Spjd goto error; 3726185029Spjd } 3727168676Spjd delim = strchr(parentname, '@'); 3728168676Spjd *delim = '\0'; 3729185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 3730168676Spjd if (zhrp == NULL) { 3731185029Spjd ret = -1; 3732185029Spjd goto error; 3733168676Spjd } 3734168676Spjd 3735168676Spjd } else { 3736226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 3737235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 3738235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 3739168676Spjd return (-1); 3740226676Spjd } 3741168676Spjd 3742168676Spjd if (changelist_haszonedchild(cl)) { 3743168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3744168676Spjd "child dataset with inherited mountpoint is used " 3745168676Spjd "in a non-global zone")); 3746168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 3747168676Spjd goto error; 3748168676Spjd } 3749168676Spjd 3750168676Spjd if ((ret = changelist_prefix(cl)) != 0) 3751168676Spjd goto error; 3752168404Spjd } 3753168404Spjd 3754168404Spjd if (ZFS_IS_VOLUME(zhp)) 3755168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3756168404Spjd else 3757168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3758168404Spjd 3759168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3760168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 3761168404Spjd 3762226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 3763226705Spjd if (flags.nounmount) 3764226676Spjd zc.zc_cookie |= 2; 3765168676Spjd 3766185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 3767168676Spjd /* 3768168676Spjd * if it was recursive, the one that actually failed will 3769168676Spjd * be in zc.zc_name 3770168676Spjd */ 3771168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3772185029Spjd "cannot rename '%s'"), zc.zc_name); 3773168404Spjd 3774226705Spjd if (flags.recurse && errno == EEXIST) { 3775168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3776168676Spjd "a child dataset already has a snapshot " 3777168676Spjd "with the new name")); 3778185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3779168676Spjd } else { 3780168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 3781168676Spjd } 3782168676Spjd 3783168404Spjd /* 3784168404Spjd * On failure, we still want to remount any filesystems that 3785168404Spjd * were previously mounted, so we don't alter the system state. 3786168404Spjd */ 3787226705Spjd if (!flags.recurse) 3788168676Spjd (void) changelist_postfix(cl); 3789168404Spjd } else { 3790226705Spjd if (!flags.recurse) { 3791168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 3792168676Spjd ret = changelist_postfix(cl); 3793168676Spjd } 3794168404Spjd } 3795168404Spjd 3796168404Spjderror: 3797168676Spjd if (parentname) { 3798168676Spjd free(parentname); 3799168676Spjd } 3800168676Spjd if (zhrp) { 3801168676Spjd zfs_close(zhrp); 3802168676Spjd } 3803168676Spjd if (cl) { 3804168676Spjd changelist_free(cl); 3805168676Spjd } 3806168404Spjd return (ret); 3807168404Spjd} 3808168404Spjd 3809219089Spjdnvlist_t * 3810219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 3811168404Spjd{ 3812219089Spjd return (zhp->zfs_user_props); 3813168676Spjd} 3814168676Spjd 3815168404Spjdnvlist_t * 3816219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 3817168404Spjd{ 3818219089Spjd if (zhp->zfs_recvd_props == NULL) 3819219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 3820219089Spjd return (NULL); 3821219089Spjd return (zhp->zfs_recvd_props); 3822168404Spjd} 3823168404Spjd 3824168404Spjd/* 3825168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 3826168404Spjd * display, and their maximum widths. This does two main things: 3827168404Spjd * 3828168404Spjd * - If this is a list of all properties, then expand the list to include 3829168404Spjd * all native properties, and set a flag so that for each dataset we look 3830168404Spjd * for new unique user properties and add them to the list. 3831168404Spjd * 3832168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 3833219089Spjd * so that we can size the column appropriately. If the user has 3834219089Spjd * requested received property values, we also need to compute the width 3835219089Spjd * of the RECEIVED column. 3836168404Spjd */ 3837168404Spjdint 3838219089Spjdzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) 3839168404Spjd{ 3840168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3841185029Spjd zprop_list_t *entry; 3842185029Spjd zprop_list_t **last, **start; 3843168404Spjd nvlist_t *userprops, *propval; 3844168404Spjd nvpair_t *elem; 3845168404Spjd char *strval; 3846168404Spjd char buf[ZFS_MAXPROPLEN]; 3847168404Spjd 3848185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 3849168404Spjd return (-1); 3850168404Spjd 3851168404Spjd userprops = zfs_get_user_props(zhp); 3852168404Spjd 3853168404Spjd entry = *plp; 3854168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 3855168404Spjd /* 3856168404Spjd * Go through and add any user properties as necessary. We 3857168404Spjd * start by incrementing our list pointer to the first 3858168404Spjd * non-native property. 3859168404Spjd */ 3860168404Spjd start = plp; 3861168404Spjd while (*start != NULL) { 3862185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 3863168404Spjd break; 3864168404Spjd start = &(*start)->pl_next; 3865168404Spjd } 3866168404Spjd 3867168404Spjd elem = NULL; 3868168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 3869168404Spjd /* 3870168404Spjd * See if we've already found this property in our list. 3871168404Spjd */ 3872168404Spjd for (last = start; *last != NULL; 3873168404Spjd last = &(*last)->pl_next) { 3874168404Spjd if (strcmp((*last)->pl_user_prop, 3875168404Spjd nvpair_name(elem)) == 0) 3876168404Spjd break; 3877168404Spjd } 3878168404Spjd 3879168404Spjd if (*last == NULL) { 3880168404Spjd if ((entry = zfs_alloc(hdl, 3881185029Spjd sizeof (zprop_list_t))) == NULL || 3882168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 3883168404Spjd nvpair_name(elem)))) == NULL) { 3884168404Spjd free(entry); 3885168404Spjd return (-1); 3886168404Spjd } 3887168404Spjd 3888185029Spjd entry->pl_prop = ZPROP_INVAL; 3889168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 3890168404Spjd entry->pl_all = B_TRUE; 3891168404Spjd *last = entry; 3892168404Spjd } 3893168404Spjd } 3894168404Spjd } 3895168404Spjd 3896168404Spjd /* 3897168404Spjd * Now go through and check the width of any non-fixed columns 3898168404Spjd */ 3899168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 3900168404Spjd if (entry->pl_fixed) 3901168404Spjd continue; 3902168404Spjd 3903185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 3904168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 3905168404Spjd buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { 3906168404Spjd if (strlen(buf) > entry->pl_width) 3907168404Spjd entry->pl_width = strlen(buf); 3908168404Spjd } 3909219089Spjd if (received && zfs_prop_get_recvd(zhp, 3910219089Spjd zfs_prop_to_name(entry->pl_prop), 3911219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3912219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3913219089Spjd entry->pl_recvd_width = strlen(buf); 3914219089Spjd } else { 3915219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 3916219089Spjd &propval) == 0) { 3917219089Spjd verify(nvlist_lookup_string(propval, 3918219089Spjd ZPROP_VALUE, &strval) == 0); 3919219089Spjd if (strlen(strval) > entry->pl_width) 3920219089Spjd entry->pl_width = strlen(strval); 3921219089Spjd } 3922219089Spjd if (received && zfs_prop_get_recvd(zhp, 3923219089Spjd entry->pl_user_prop, 3924219089Spjd buf, sizeof (buf), B_FALSE) == 0) 3925219089Spjd if (strlen(buf) > entry->pl_recvd_width) 3926219089Spjd entry->pl_recvd_width = strlen(buf); 3927168404Spjd } 3928168404Spjd } 3929168404Spjd 3930168404Spjd return (0); 3931168404Spjd} 3932168404Spjd 3933185029Spjdint 3934185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 3935209962Smm char *resource, void *export, void *sharetab, 3936209962Smm int sharemax, zfs_share_op_t operation) 3937185029Spjd{ 3938185029Spjd zfs_cmd_t zc = { 0 }; 3939185029Spjd int error; 3940185029Spjd 3941185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 3942185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 3943209962Smm if (resource) 3944209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 3945185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 3946185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 3947185029Spjd zc.zc_share.z_sharetype = operation; 3948185029Spjd zc.zc_share.z_sharemax = sharemax; 3949185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 3950185029Spjd return (error); 3951185029Spjd} 3952185029Spjd 3953205198Sdelphijvoid 3954205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 3955205198Sdelphij{ 3956205198Sdelphij nvpair_t *curr; 3957205198Sdelphij 3958205198Sdelphij /* 3959205198Sdelphij * Keep a reference to the props-table against which we prune the 3960205198Sdelphij * properties. 3961205198Sdelphij */ 3962205198Sdelphij zhp->zfs_props_table = props; 3963205198Sdelphij 3964205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 3965205198Sdelphij 3966205198Sdelphij while (curr) { 3967205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 3968205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 3969205198Sdelphij 3970206199Sdelphij /* 3971219089Spjd * User properties will result in ZPROP_INVAL, and since we 3972219089Spjd * only know how to prune standard ZFS properties, we always 3973219089Spjd * leave these in the list. This can also happen if we 3974219089Spjd * encounter an unknown DSL property (when running older 3975219089Spjd * software, for example). 3976206199Sdelphij */ 3977206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 3978205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 3979205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 3980205198Sdelphij curr = next; 3981205198Sdelphij } 3982205198Sdelphij} 3983205198Sdelphij 3984209962Smm#ifdef sun 3985209962Smmstatic int 3986209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 3987209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 3988209962Smm{ 3989209962Smm zfs_cmd_t zc = { 0 }; 3990209962Smm nvlist_t *nvlist = NULL; 3991209962Smm int error; 3992209962Smm 3993209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 3994209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 3995209962Smm zc.zc_cookie = (uint64_t)cmd; 3996209962Smm 3997209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 3998209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 3999209962Smm (void) no_memory(hdl); 4000209962Smm return (NULL); 4001209962Smm } 4002209962Smm } 4003209962Smm 4004209962Smm switch (cmd) { 4005209962Smm case ZFS_SMB_ACL_ADD: 4006209962Smm case ZFS_SMB_ACL_REMOVE: 4007209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4008209962Smm break; 4009209962Smm case ZFS_SMB_ACL_RENAME: 4010209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4011209962Smm resource1) != 0) { 4012209962Smm (void) no_memory(hdl); 4013209962Smm return (-1); 4014209962Smm } 4015209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4016209962Smm resource2) != 0) { 4017209962Smm (void) no_memory(hdl); 4018209962Smm return (-1); 4019209962Smm } 4020209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4021209962Smm nvlist_free(nvlist); 4022209962Smm return (-1); 4023209962Smm } 4024209962Smm break; 4025209962Smm case ZFS_SMB_ACL_PURGE: 4026209962Smm break; 4027209962Smm default: 4028209962Smm return (-1); 4029209962Smm } 4030209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4031209962Smm if (nvlist) 4032209962Smm nvlist_free(nvlist); 4033209962Smm return (error); 4034209962Smm} 4035209962Smm 4036209962Smmint 4037209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4038209962Smm char *path, char *resource) 4039209962Smm{ 4040209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4041209962Smm resource, NULL)); 4042209962Smm} 4043209962Smm 4044209962Smmint 4045209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4046209962Smm char *path, char *resource) 4047209962Smm{ 4048209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4049209962Smm resource, NULL)); 4050209962Smm} 4051209962Smm 4052209962Smmint 4053209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4054209962Smm{ 4055209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4056209962Smm NULL, NULL)); 4057209962Smm} 4058209962Smm 4059209962Smmint 4060209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4061209962Smm char *oldname, char *newname) 4062209962Smm{ 4063209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4064209962Smm oldname, newname)); 4065209962Smm} 4066209962Smm#endif /* sun */ 4067209962Smm 4068209962Smmint 4069209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4070209962Smm zfs_userspace_cb_t func, void *arg) 4071209962Smm{ 4072209962Smm zfs_cmd_t zc = { 0 }; 4073209962Smm int error; 4074209962Smm zfs_useracct_t buf[100]; 4075209962Smm 4076228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4077209962Smm 4078209962Smm zc.zc_objset_type = type; 4079209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4080209962Smm 4081209962Smm /* CONSTCOND */ 4082209962Smm while (1) { 4083209962Smm zfs_useracct_t *zua = buf; 4084209962Smm 4085209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4086209962Smm error = ioctl(zhp->zfs_hdl->libzfs_fd, 4087209962Smm ZFS_IOC_USERSPACE_MANY, &zc); 4088209962Smm if (error || zc.zc_nvlist_dst_size == 0) 4089209962Smm break; 4090209962Smm 4091209962Smm while (zc.zc_nvlist_dst_size > 0) { 4092209962Smm error = func(arg, zua->zu_domain, zua->zu_rid, 4093209962Smm zua->zu_space); 4094209962Smm if (error != 0) 4095209962Smm return (error); 4096209962Smm zua++; 4097209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4098209962Smm } 4099209962Smm } 4100209962Smm 4101209962Smm return (error); 4102209962Smm} 4103209962Smm 4104219089Spjdint 4105219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4106219089Spjd boolean_t recursive, boolean_t temphold, boolean_t enoent_ok, 4107219089Spjd int cleanup_fd, uint64_t dsobj, uint64_t createtxg) 4108219089Spjd{ 4109219089Spjd zfs_cmd_t zc = { 0 }; 4110219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4111219089Spjd 4112219089Spjd ASSERT(!recursive || dsobj == 0); 4113219089Spjd 4114219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4115219089Spjd (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 4116219089Spjd if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) 4117219089Spjd >= sizeof (zc.zc_string)) 4118219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); 4119219089Spjd zc.zc_cookie = recursive; 4120219089Spjd zc.zc_temphold = temphold; 4121219089Spjd zc.zc_cleanup_fd = cleanup_fd; 4122219089Spjd zc.zc_sendobj = dsobj; 4123219089Spjd zc.zc_createtxg = createtxg; 4124219089Spjd 4125219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { 4126219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4127219089Spjd 4128219089Spjd /* 4129219089Spjd * if it was recursive, the one that actually failed will be in 4130219089Spjd * zc.zc_name. 4131219089Spjd */ 4132219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4133219089Spjd "cannot hold '%s@%s'"), zc.zc_name, snapname); 4134219089Spjd switch (errno) { 4135219089Spjd case E2BIG: 4136219089Spjd /* 4137219089Spjd * Temporary tags wind up having the ds object id 4138219089Spjd * prepended. So even if we passed the length check 4139219089Spjd * above, it's still possible for the tag to wind 4140219089Spjd * up being slightly too long. 4141219089Spjd */ 4142219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); 4143219089Spjd case ENOTSUP: 4144219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4145219089Spjd "pool must be upgraded")); 4146219089Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4147219089Spjd case EINVAL: 4148219089Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4149219089Spjd case EEXIST: 4150219089Spjd return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); 4151219089Spjd case ENOENT: 4152219089Spjd if (enoent_ok) 4153219089Spjd return (ENOENT); 4154219089Spjd /* FALLTHROUGH */ 4155219089Spjd default: 4156219089Spjd return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4157219089Spjd } 4158219089Spjd } 4159219089Spjd 4160219089Spjd return (0); 4161219089Spjd} 4162219089Spjd 4163219089Spjdint 4164219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4165219089Spjd boolean_t recursive) 4166219089Spjd{ 4167219089Spjd zfs_cmd_t zc = { 0 }; 4168219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4169219089Spjd 4170219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4171219089Spjd (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 4172219089Spjd if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) 4173219089Spjd >= sizeof (zc.zc_string)) 4174219089Spjd return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); 4175219089Spjd zc.zc_cookie = recursive; 4176219089Spjd 4177219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { 4178219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4179219089Spjd 4180219089Spjd /* 4181219089Spjd * if it was recursive, the one that actually failed will be in 4182219089Spjd * zc.zc_name. 4183219089Spjd */ 4184219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4185219089Spjd "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, 4186219089Spjd snapname); 4187219089Spjd switch (errno) { 4188219089Spjd case ESRCH: 4189219089Spjd return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); 4190219089Spjd case ENOTSUP: 4191219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4192219089Spjd "pool must be upgraded")); 4193219089Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4194219089Spjd case EINVAL: 4195219089Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4196219089Spjd default: 4197219089Spjd return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4198219089Spjd } 4199219089Spjd } 4200219089Spjd 4201219089Spjd return (0); 4202219089Spjd} 4203219089Spjd 4204219089Spjdint 4205219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4206219089Spjd{ 4207219089Spjd zfs_cmd_t zc = { 0 }; 4208219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4209219089Spjd int nvsz = 2048; 4210219089Spjd void *nvbuf; 4211219089Spjd int err = 0; 4212219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4213219089Spjd 4214219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4215219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4216219089Spjd 4217219089Spjdtryagain: 4218219089Spjd 4219219089Spjd nvbuf = malloc(nvsz); 4220219089Spjd if (nvbuf == NULL) { 4221219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4222219089Spjd goto out; 4223219089Spjd } 4224219089Spjd 4225219089Spjd zc.zc_nvlist_dst_size = nvsz; 4226219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4227219089Spjd 4228219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4229219089Spjd 4230230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4231219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4232219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4233219089Spjd zc.zc_name); 4234219089Spjd switch (errno) { 4235219089Spjd case ENOMEM: 4236219089Spjd free(nvbuf); 4237219089Spjd nvsz = zc.zc_nvlist_dst_size; 4238219089Spjd goto tryagain; 4239219089Spjd 4240219089Spjd case ENOTSUP: 4241219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4242219089Spjd "pool must be upgraded")); 4243219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4244219089Spjd break; 4245219089Spjd case EINVAL: 4246219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4247219089Spjd break; 4248219089Spjd case ENOENT: 4249219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4250219089Spjd break; 4251219089Spjd default: 4252219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4253219089Spjd break; 4254219089Spjd } 4255219089Spjd } else { 4256219089Spjd /* success */ 4257219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4258219089Spjd if (rc) { 4259219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4260219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4261219089Spjd zc.zc_name); 4262219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4263219089Spjd } 4264219089Spjd } 4265219089Spjd 4266219089Spjd free(nvbuf); 4267219089Spjdout: 4268219089Spjd return (err); 4269219089Spjd} 4270219089Spjd 4271219089Spjdint 4272219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4273219089Spjd{ 4274219089Spjd zfs_cmd_t zc = { 0 }; 4275219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4276219089Spjd char *nvbuf; 4277219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4278219089Spjd size_t nvsz; 4279219089Spjd int err; 4280219089Spjd 4281219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4282219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4283219089Spjd 4284219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4285219089Spjd assert(err == 0); 4286219089Spjd 4287219089Spjd nvbuf = malloc(nvsz); 4288219089Spjd 4289219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4290219089Spjd assert(err == 0); 4291219089Spjd 4292219089Spjd zc.zc_nvlist_src_size = nvsz; 4293219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4294219089Spjd zc.zc_perm_action = un; 4295219089Spjd 4296219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4297219089Spjd 4298219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4299219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4300219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4301219089Spjd zc.zc_name); 4302219089Spjd switch (errno) { 4303219089Spjd case ENOTSUP: 4304219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4305219089Spjd "pool must be upgraded")); 4306219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4307219089Spjd break; 4308219089Spjd case EINVAL: 4309219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4310219089Spjd break; 4311219089Spjd case ENOENT: 4312219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4313219089Spjd break; 4314219089Spjd default: 4315219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4316219089Spjd break; 4317219089Spjd } 4318219089Spjd } 4319219089Spjd 4320219089Spjd free(nvbuf); 4321219089Spjd 4322219089Spjd return (err); 4323219089Spjd} 4324219089Spjd 4325219089Spjdint 4326219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4327219089Spjd{ 4328219089Spjd zfs_cmd_t zc = { 0 }; 4329219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4330219089Spjd int nvsz = 2048; 4331219089Spjd void *nvbuf; 4332219089Spjd int err = 0; 4333219089Spjd char errbuf[ZFS_MAXNAMELEN+32]; 4334219089Spjd 4335219089Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 4336219089Spjd 4337219089Spjdtryagain: 4338219089Spjd 4339219089Spjd nvbuf = malloc(nvsz); 4340219089Spjd if (nvbuf == NULL) { 4341219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4342219089Spjd goto out; 4343219089Spjd } 4344219089Spjd 4345219089Spjd zc.zc_nvlist_dst_size = nvsz; 4346219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4347219089Spjd 4348219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4349219089Spjd 4350219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_GET_HOLDS, &zc) != 0) { 4351219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4352219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4353219089Spjd zc.zc_name); 4354219089Spjd switch (errno) { 4355219089Spjd case ENOMEM: 4356219089Spjd free(nvbuf); 4357219089Spjd nvsz = zc.zc_nvlist_dst_size; 4358219089Spjd goto tryagain; 4359219089Spjd 4360219089Spjd case ENOTSUP: 4361219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4362219089Spjd "pool must be upgraded")); 4363219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4364219089Spjd break; 4365219089Spjd case EINVAL: 4366219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4367219089Spjd break; 4368219089Spjd case ENOENT: 4369219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4370219089Spjd break; 4371219089Spjd default: 4372219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4373219089Spjd break; 4374219089Spjd } 4375219089Spjd } else { 4376219089Spjd /* success */ 4377219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4378219089Spjd if (rc) { 4379219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4380219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4381219089Spjd zc.zc_name); 4382219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4383219089Spjd } 4384219089Spjd } 4385219089Spjd 4386219089Spjd free(nvbuf); 4387219089Spjdout: 4388219089Spjd return (err); 4389219089Spjd} 4390219089Spjd 4391219089Spjduint64_t 4392219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4393219089Spjd{ 4394219089Spjd uint64_t numdb; 4395219089Spjd uint64_t nblocks, volblocksize; 4396219089Spjd int ncopies; 4397219089Spjd char *strval; 4398219089Spjd 4399219089Spjd if (nvlist_lookup_string(props, 4400219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4401219089Spjd ncopies = atoi(strval); 4402219089Spjd else 4403219089Spjd ncopies = 1; 4404219089Spjd if (nvlist_lookup_uint64(props, 4405219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4406219089Spjd &volblocksize) != 0) 4407219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4408219089Spjd nblocks = volsize/volblocksize; 4409219089Spjd /* start with metadnode L0-L6 */ 4410219089Spjd numdb = 7; 4411219089Spjd /* calculate number of indirects */ 4412219089Spjd while (nblocks > 1) { 4413219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4414219089Spjd nblocks /= DNODES_PER_LEVEL; 4415219089Spjd numdb += nblocks; 4416219089Spjd } 4417219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4418219089Spjd volsize *= ncopies; 4419219089Spjd /* 4420219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4421219089Spjd * compressed, but in practice they compress down to about 4422219089Spjd * 1100 bytes 4423219089Spjd */ 4424219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4425219089Spjd volsize += numdb; 4426219089Spjd return (volsize); 4427219089Spjd} 4428219089Spjd 4429168404Spjd/* 4430168404Spjd * Attach/detach the given filesystem to/from the given jail. 4431168404Spjd */ 4432168404Spjdint 4433168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4434168404Spjd{ 4435168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4436168404Spjd zfs_cmd_t zc = { 0 }; 4437168404Spjd char errbuf[1024]; 4438224525Smm unsigned long cmd; 4439224525Smm int ret; 4440168404Spjd 4441168404Spjd if (attach) { 4442168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4443168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4444168404Spjd } else { 4445168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4446168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4447168404Spjd } 4448168404Spjd 4449168404Spjd switch (zhp->zfs_type) { 4450168404Spjd case ZFS_TYPE_VOLUME: 4451168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4452168404Spjd "volumes can not be jailed")); 4453168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4454168404Spjd case ZFS_TYPE_SNAPSHOT: 4455168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4456168404Spjd "snapshots can not be jailed")); 4457168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4458168404Spjd } 4459168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4460168404Spjd 4461168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4462168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4463168404Spjd zc.zc_jailid = jailid; 4464168404Spjd 4465168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4466168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4467168404Spjd zfs_standard_error(hdl, errno, errbuf); 4468168404Spjd 4469168404Spjd return (ret); 4470168404Spjd} 4471