libzfs_dataset.c revision 305460
1168404Spjd/* 2168404Spjd * CDDL HEADER START 3168404Spjd * 4168404Spjd * The contents of this file are subject to the terms of the 5168404Spjd * Common Development and Distribution License (the "License"). 6168404Spjd * You may not use this file except in compliance with the License. 7168404Spjd * 8168404Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9168404Spjd * or http://www.opensolaris.org/os/licensing. 10168404Spjd * See the License for the specific language governing permissions 11168404Spjd * and limitations under the License. 12168404Spjd * 13168404Spjd * When distributing Covered Code, include this CDDL HEADER in each 14168404Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15168404Spjd * If applicable, add the following below this CDDL HEADER, with the 16168404Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17168404Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18168404Spjd * 19168404Spjd * CDDL HEADER END 20168404Spjd */ 21168404Spjd 22168404Spjd/* 23219089Spjd * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24264835Sdelphij * Copyright (c) 2013, Joyent, Inc. All rights reserved. 25289500Smav * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 26252219Sdelphij * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved. 27230438Spjd * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 28226706Spjd * All rights reserved. 29235216Smm * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 30251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 31259850Sdelphij * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 32296519Smav * Copyright (c) 2014 Integros [integros.com] 33168404Spjd */ 34168404Spjd 35168404Spjd#include <ctype.h> 36168404Spjd#include <errno.h> 37168404Spjd#include <libintl.h> 38168404Spjd#include <math.h> 39168404Spjd#include <stdio.h> 40168404Spjd#include <stdlib.h> 41168404Spjd#include <strings.h> 42168404Spjd#include <unistd.h> 43185029Spjd#include <stddef.h> 44168404Spjd#include <zone.h> 45168404Spjd#include <fcntl.h> 46168404Spjd#include <sys/mntent.h> 47168404Spjd#include <sys/mount.h> 48185029Spjd#include <priv.h> 49185029Spjd#include <pwd.h> 50185029Spjd#include <grp.h> 51185029Spjd#include <stddef.h> 52209962Smm#include <idmap.h> 53168404Spjd 54219089Spjd#include <sys/dnode.h> 55168404Spjd#include <sys/spa.h> 56168404Spjd#include <sys/zap.h> 57209962Smm#include <sys/misc.h> 58168404Spjd#include <libzfs.h> 59168404Spjd 60168404Spjd#include "zfs_namecheck.h" 61168404Spjd#include "zfs_prop.h" 62168404Spjd#include "libzfs_impl.h" 63185029Spjd#include "zfs_deleg.h" 64168404Spjd 65209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 66209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 67168676Spjd 68168404Spjd/* 69168404Spjd * Given a single type (not a mask of types), return the type in a human 70168404Spjd * readable form. 71168404Spjd */ 72168404Spjdconst char * 73168404Spjdzfs_type_to_name(zfs_type_t type) 74168404Spjd{ 75168404Spjd switch (type) { 76168404Spjd case ZFS_TYPE_FILESYSTEM: 77168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 78168404Spjd case ZFS_TYPE_SNAPSHOT: 79168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 80168404Spjd case ZFS_TYPE_VOLUME: 81168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 82168404Spjd } 83168404Spjd 84168404Spjd return (NULL); 85168404Spjd} 86168404Spjd 87168404Spjd/* 88168404Spjd * Given a path and mask of ZFS types, return a string describing this dataset. 89168404Spjd * This is used when we fail to open a dataset and we cannot get an exact type. 90168404Spjd * We guess what the type would have been based on the path and the mask of 91168404Spjd * acceptable types. 92168404Spjd */ 93168404Spjdstatic const char * 94168404Spjdpath_to_str(const char *path, int types) 95168404Spjd{ 96168404Spjd /* 97168404Spjd * When given a single type, always report the exact type. 98168404Spjd */ 99168404Spjd if (types == ZFS_TYPE_SNAPSHOT) 100168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 101168404Spjd if (types == ZFS_TYPE_FILESYSTEM) 102168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 103168404Spjd if (types == ZFS_TYPE_VOLUME) 104168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 105168404Spjd 106168404Spjd /* 107168404Spjd * The user is requesting more than one type of dataset. If this is the 108168404Spjd * case, consult the path itself. If we're looking for a snapshot, and 109168404Spjd * a '@' is found, then report it as "snapshot". Otherwise, remove the 110168404Spjd * snapshot attribute and try again. 111168404Spjd */ 112168404Spjd if (types & ZFS_TYPE_SNAPSHOT) { 113168404Spjd if (strchr(path, '@') != NULL) 114168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 115168404Spjd return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); 116168404Spjd } 117168404Spjd 118168404Spjd /* 119168404Spjd * The user has requested either filesystems or volumes. 120168404Spjd * We have no way of knowing a priori what type this would be, so always 121168404Spjd * report it as "filesystem" or "volume", our two primitive types. 122168404Spjd */ 123168404Spjd if (types & ZFS_TYPE_FILESYSTEM) 124168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 125168404Spjd 126168404Spjd assert(types & ZFS_TYPE_VOLUME); 127168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 128168404Spjd} 129168404Spjd 130168404Spjd/* 131168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 132209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 133209962Smm * explain exactly why the name was not valid. 134168404Spjd */ 135219089Spjdint 136185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 137185029Spjd boolean_t modifying) 138168404Spjd{ 139168404Spjd namecheck_err_t why; 140168404Spjd char what; 141168404Spjd 142219089Spjd (void) zfs_prop_get_table(); 143168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 144168404Spjd if (hdl != NULL) { 145168404Spjd switch (why) { 146168404Spjd case NAME_ERR_TOOLONG: 147168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 148168404Spjd "name is too long")); 149168404Spjd break; 150168404Spjd 151168404Spjd case NAME_ERR_LEADING_SLASH: 152168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 153168404Spjd "leading slash in name")); 154168404Spjd break; 155168404Spjd 156168404Spjd case NAME_ERR_EMPTY_COMPONENT: 157168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 158168404Spjd "empty component in name")); 159168404Spjd break; 160168404Spjd 161168404Spjd case NAME_ERR_TRAILING_SLASH: 162168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 163168404Spjd "trailing slash in name")); 164168404Spjd break; 165168404Spjd 166168404Spjd case NAME_ERR_INVALCHAR: 167168404Spjd zfs_error_aux(hdl, 168168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 169168404Spjd "'%c' in name"), what); 170168404Spjd break; 171168404Spjd 172168404Spjd case NAME_ERR_MULTIPLE_AT: 173168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 174168404Spjd "multiple '@' delimiters in name")); 175168404Spjd break; 176168404Spjd 177168404Spjd case NAME_ERR_NOLETTER: 178168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 179168404Spjd "pool doesn't begin with a letter")); 180168404Spjd break; 181168404Spjd 182168404Spjd case NAME_ERR_RESERVED: 183168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 184168404Spjd "name is reserved")); 185168404Spjd break; 186168404Spjd 187168404Spjd case NAME_ERR_DISKLIKE: 188168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 189168404Spjd "reserved disk name")); 190168404Spjd break; 191168404Spjd } 192168404Spjd } 193168404Spjd 194168404Spjd return (0); 195168404Spjd } 196168404Spjd 197168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 198168404Spjd if (hdl != NULL) 199168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 200168404Spjd "snapshot delimiter '@' in filesystem name")); 201168404Spjd return (0); 202168404Spjd } 203168404Spjd 204168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 205168404Spjd if (hdl != NULL) 206168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 207168404Spjd "missing '@' delimiter in snapshot name")); 208168404Spjd return (0); 209168404Spjd } 210168404Spjd 211185029Spjd if (modifying && strchr(path, '%') != NULL) { 212185029Spjd if (hdl != NULL) 213185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 214185029Spjd "invalid character %c in name"), '%'); 215185029Spjd return (0); 216185029Spjd } 217185029Spjd 218168404Spjd return (-1); 219168404Spjd} 220168404Spjd 221168404Spjdint 222168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 223168404Spjd{ 224185029Spjd if (type == ZFS_TYPE_POOL) 225185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 226185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 227168404Spjd} 228168404Spjd 229168404Spjd/* 230168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 231168404Spjd * properties into a separate nvlist. 232168404Spjd */ 233185029Spjdstatic nvlist_t * 234185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 235168404Spjd{ 236168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 237168404Spjd nvpair_t *elem; 238168404Spjd nvlist_t *propval; 239185029Spjd nvlist_t *nvl; 240168404Spjd 241185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 242185029Spjd (void) no_memory(hdl); 243185029Spjd return (NULL); 244185029Spjd } 245168404Spjd 246168404Spjd elem = NULL; 247185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 248168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 249168404Spjd continue; 250168404Spjd 251168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 252185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 253185029Spjd nvlist_free(nvl); 254185029Spjd (void) no_memory(hdl); 255185029Spjd return (NULL); 256185029Spjd } 257168404Spjd } 258168404Spjd 259185029Spjd return (nvl); 260168404Spjd} 261168404Spjd 262185029Spjdstatic zpool_handle_t * 263185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 264185029Spjd{ 265185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 266185029Spjd zpool_handle_t *zph; 267185029Spjd 268185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 269185029Spjd if (hdl->libzfs_pool_handles != NULL) 270185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 271185029Spjd hdl->libzfs_pool_handles = zph; 272185029Spjd } 273185029Spjd return (zph); 274185029Spjd} 275185029Spjd 276185029Spjdstatic zpool_handle_t * 277185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 278185029Spjd{ 279185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 280185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 281185029Spjd 282185029Spjd while ((zph != NULL) && 283185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 284185029Spjd zph = zph->zpool_next; 285185029Spjd return (zph); 286185029Spjd} 287185029Spjd 288168404Spjd/* 289185029Spjd * Returns a handle to the pool that contains the provided dataset. 290185029Spjd * If a handle to that pool already exists then that handle is returned. 291185029Spjd * Otherwise, a new handle is created and added to the list of handles. 292185029Spjd */ 293185029Spjdstatic zpool_handle_t * 294185029Spjdzpool_handle(zfs_handle_t *zhp) 295185029Spjd{ 296185029Spjd char *pool_name; 297185029Spjd int len; 298185029Spjd zpool_handle_t *zph; 299185029Spjd 300260183Sdelphij len = strcspn(zhp->zfs_name, "/@#") + 1; 301185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 302185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 303185029Spjd 304185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 305185029Spjd if (zph == NULL) 306185029Spjd zph = zpool_add_handle(zhp, pool_name); 307185029Spjd 308185029Spjd free(pool_name); 309185029Spjd return (zph); 310185029Spjd} 311185029Spjd 312185029Spjdvoid 313185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 314185029Spjd{ 315185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 316185029Spjd 317185029Spjd while (zph != NULL) { 318185029Spjd next = zph->zpool_next; 319185029Spjd zpool_close(zph); 320185029Spjd zph = next; 321185029Spjd } 322185029Spjd hdl->libzfs_pool_handles = NULL; 323185029Spjd} 324185029Spjd 325185029Spjd/* 326168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 327168404Spjd */ 328219089Spjdstatic int 329209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 330168404Spjd{ 331168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 332168404Spjd 333209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 334168404Spjd 335209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 336168404Spjd if (errno == ENOMEM) { 337209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 338168404Spjd return (-1); 339168404Spjd } 340168404Spjd } else { 341168404Spjd return (-1); 342168404Spjd } 343168404Spjd } 344209962Smm return (0); 345209962Smm} 346168404Spjd 347219089Spjd/* 348219089Spjd * Utility function to get the received properties of the given object. 349219089Spjd */ 350209962Smmstatic int 351219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 352219089Spjd{ 353219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 354219089Spjd nvlist_t *recvdprops; 355219089Spjd zfs_cmd_t zc = { 0 }; 356219089Spjd int err; 357219089Spjd 358219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 359219089Spjd return (-1); 360219089Spjd 361219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 362219089Spjd 363219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 364219089Spjd if (errno == ENOMEM) { 365219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 366219089Spjd return (-1); 367219089Spjd } 368219089Spjd } else { 369219089Spjd zcmd_free_nvlists(&zc); 370219089Spjd return (-1); 371219089Spjd } 372219089Spjd } 373219089Spjd 374219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 375219089Spjd zcmd_free_nvlists(&zc); 376219089Spjd if (err != 0) 377219089Spjd return (-1); 378219089Spjd 379219089Spjd nvlist_free(zhp->zfs_recvd_props); 380219089Spjd zhp->zfs_recvd_props = recvdprops; 381219089Spjd 382219089Spjd return (0); 383219089Spjd} 384219089Spjd 385219089Spjdstatic int 386209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 387209962Smm{ 388209962Smm nvlist_t *allprops, *userprops; 389168404Spjd 390209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 391209962Smm 392209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 393168404Spjd return (-1); 394168404Spjd } 395168404Spjd 396209962Smm /* 397209962Smm * XXX Why do we store the user props separately, in addition to 398209962Smm * storing them in zfs_props? 399209962Smm */ 400185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 401185029Spjd nvlist_free(allprops); 402168404Spjd return (-1); 403185029Spjd } 404168404Spjd 405185029Spjd nvlist_free(zhp->zfs_props); 406185029Spjd nvlist_free(zhp->zfs_user_props); 407185029Spjd 408185029Spjd zhp->zfs_props = allprops; 409185029Spjd zhp->zfs_user_props = userprops; 410185029Spjd 411168404Spjd return (0); 412168404Spjd} 413168404Spjd 414209962Smmstatic int 415209962Smmget_stats(zfs_handle_t *zhp) 416209962Smm{ 417209962Smm int rc = 0; 418209962Smm zfs_cmd_t zc = { 0 }; 419209962Smm 420209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 421209962Smm return (-1); 422209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 423209962Smm rc = -1; 424209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 425209962Smm rc = -1; 426209962Smm zcmd_free_nvlists(&zc); 427209962Smm return (rc); 428209962Smm} 429209962Smm 430168404Spjd/* 431168404Spjd * Refresh the properties currently stored in the handle. 432168404Spjd */ 433168404Spjdvoid 434168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 435168404Spjd{ 436168404Spjd (void) get_stats(zhp); 437168404Spjd} 438168404Spjd 439168404Spjd/* 440168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 441168404Spjd * zfs_iter_* to create child handles on the fly. 442168404Spjd */ 443209962Smmstatic int 444209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 445168404Spjd{ 446219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 447209962Smm return (-1); 448168404Spjd 449168404Spjd /* 450168404Spjd * We've managed to open the dataset and gather statistics. Determine 451168404Spjd * the high-level type. 452168404Spjd */ 453168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 454168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 455168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 456168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 457168404Spjd else 458168404Spjd abort(); 459168404Spjd 460168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 461168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 462168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 463168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 464168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 465168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 466168404Spjd else 467168404Spjd abort(); /* we should never see any other types */ 468168404Spjd 469219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 470219089Spjd return (-1); 471219089Spjd 472209962Smm return (0); 473209962Smm} 474209962Smm 475209962Smmzfs_handle_t * 476209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 477209962Smm{ 478209962Smm zfs_cmd_t zc = { 0 }; 479209962Smm 480209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 481209962Smm 482209962Smm if (zhp == NULL) 483209962Smm return (NULL); 484209962Smm 485209962Smm zhp->zfs_hdl = hdl; 486209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 487209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 488209962Smm free(zhp); 489209962Smm return (NULL); 490209962Smm } 491209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 492209962Smm zcmd_free_nvlists(&zc); 493209962Smm free(zhp); 494209962Smm return (NULL); 495209962Smm } 496209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 497209962Smm free(zhp); 498209962Smm zhp = NULL; 499209962Smm } 500209962Smm zcmd_free_nvlists(&zc); 501168404Spjd return (zhp); 502168404Spjd} 503168404Spjd 504228103Smmzfs_handle_t * 505209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 506209962Smm{ 507209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 508209962Smm 509209962Smm if (zhp == NULL) 510209962Smm return (NULL); 511209962Smm 512209962Smm zhp->zfs_hdl = hdl; 513209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 514209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 515209962Smm free(zhp); 516209962Smm return (NULL); 517209962Smm } 518209962Smm return (zhp); 519209962Smm} 520209962Smm 521228103Smmzfs_handle_t * 522230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 523230438Spjd{ 524230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 525230438Spjd 526230438Spjd if (zhp == NULL) 527230438Spjd return (NULL); 528230438Spjd 529230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 530230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 531230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 532230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 533230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 534230438Spjd return (zhp); 535230438Spjd} 536230438Spjd 537230438Spjdzfs_handle_t * 538228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 539228103Smm{ 540228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 541228103Smm 542228103Smm if (zhp == NULL) 543228103Smm return (NULL); 544228103Smm 545228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 546228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 547228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 548228103Smm sizeof (zhp->zfs_name)); 549228103Smm zhp->zfs_type = zhp_orig->zfs_type; 550228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 551228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 552228103Smm if (zhp_orig->zfs_props != NULL) { 553228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 554228103Smm (void) no_memory(zhp->zfs_hdl); 555228103Smm zfs_close(zhp); 556228103Smm return (NULL); 557228103Smm } 558228103Smm } 559228103Smm if (zhp_orig->zfs_user_props != NULL) { 560228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 561228103Smm &zhp->zfs_user_props, 0) != 0) { 562228103Smm (void) no_memory(zhp->zfs_hdl); 563228103Smm zfs_close(zhp); 564228103Smm return (NULL); 565228103Smm } 566228103Smm } 567228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 568228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 569228103Smm &zhp->zfs_recvd_props, 0)) { 570228103Smm (void) no_memory(zhp->zfs_hdl); 571228103Smm zfs_close(zhp); 572228103Smm return (NULL); 573228103Smm } 574228103Smm } 575228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 576228103Smm if (zhp_orig->zfs_mntopts != NULL) { 577228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 578228103Smm zhp_orig->zfs_mntopts); 579228103Smm } 580228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 581228103Smm return (zhp); 582228103Smm} 583228103Smm 584260183Sdelphijboolean_t 585260183Sdelphijzfs_bookmark_exists(const char *path) 586260183Sdelphij{ 587260183Sdelphij nvlist_t *bmarks; 588260183Sdelphij nvlist_t *props; 589260183Sdelphij char fsname[ZFS_MAXNAMELEN]; 590260183Sdelphij char *bmark_name; 591260183Sdelphij char *pound; 592260183Sdelphij int err; 593260183Sdelphij boolean_t rv; 594260183Sdelphij 595260183Sdelphij 596260183Sdelphij (void) strlcpy(fsname, path, sizeof (fsname)); 597260183Sdelphij pound = strchr(fsname, '#'); 598260183Sdelphij if (pound == NULL) 599260183Sdelphij return (B_FALSE); 600260183Sdelphij 601260183Sdelphij *pound = '\0'; 602260183Sdelphij bmark_name = pound + 1; 603260183Sdelphij props = fnvlist_alloc(); 604260183Sdelphij err = lzc_get_bookmarks(fsname, props, &bmarks); 605260183Sdelphij nvlist_free(props); 606260183Sdelphij if (err != 0) { 607260183Sdelphij nvlist_free(bmarks); 608260183Sdelphij return (B_FALSE); 609260183Sdelphij } 610260183Sdelphij 611260183Sdelphij rv = nvlist_exists(bmarks, bmark_name); 612260183Sdelphij nvlist_free(bmarks); 613260183Sdelphij return (rv); 614260183Sdelphij} 615260183Sdelphij 616260183Sdelphijzfs_handle_t * 617260183Sdelphijmake_bookmark_handle(zfs_handle_t *parent, const char *path, 618260183Sdelphij nvlist_t *bmark_props) 619260183Sdelphij{ 620260183Sdelphij zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 621260183Sdelphij 622260183Sdelphij if (zhp == NULL) 623260183Sdelphij return (NULL); 624260183Sdelphij 625260183Sdelphij /* Fill in the name. */ 626260183Sdelphij zhp->zfs_hdl = parent->zfs_hdl; 627260183Sdelphij (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 628260183Sdelphij 629260183Sdelphij /* Set the property lists. */ 630260183Sdelphij if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) { 631260183Sdelphij free(zhp); 632260183Sdelphij return (NULL); 633260183Sdelphij } 634260183Sdelphij 635260183Sdelphij /* Set the types. */ 636260183Sdelphij zhp->zfs_head_type = parent->zfs_head_type; 637260183Sdelphij zhp->zfs_type = ZFS_TYPE_BOOKMARK; 638260183Sdelphij 639260183Sdelphij if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) { 640260183Sdelphij nvlist_free(zhp->zfs_props); 641260183Sdelphij free(zhp); 642260183Sdelphij return (NULL); 643260183Sdelphij } 644260183Sdelphij 645260183Sdelphij return (zhp); 646260183Sdelphij} 647260183Sdelphij 648168404Spjd/* 649168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 650168404Spjd * argument is a mask of acceptable types. The function will print an 651168404Spjd * appropriate error message and return NULL if it can't be opened. 652168404Spjd */ 653168404Spjdzfs_handle_t * 654168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 655168404Spjd{ 656168404Spjd zfs_handle_t *zhp; 657168404Spjd char errbuf[1024]; 658168404Spjd 659168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 660168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 661168404Spjd 662168404Spjd /* 663168404Spjd * Validate the name before we even try to open it. 664168404Spjd */ 665185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 666168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 667168404Spjd "invalid dataset name")); 668168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 669168404Spjd return (NULL); 670168404Spjd } 671168404Spjd 672168404Spjd /* 673168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 674168404Spjd */ 675168404Spjd errno = 0; 676168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 677168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 678168404Spjd return (NULL); 679168404Spjd } 680168404Spjd 681240870Spjd if (zhp == NULL) { 682240870Spjd char *at = strchr(path, '@'); 683240870Spjd 684240870Spjd if (at != NULL) 685240870Spjd *at = '\0'; 686240870Spjd errno = 0; 687240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 688240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 689240870Spjd return (NULL); 690240870Spjd } 691240870Spjd if (at != NULL) 692240870Spjd *at = '@'; 693240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 694240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 695240870Spjd } 696240870Spjd 697168404Spjd if (!(types & zhp->zfs_type)) { 698168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 699168404Spjd zfs_close(zhp); 700168404Spjd return (NULL); 701168404Spjd } 702168404Spjd 703168404Spjd return (zhp); 704168404Spjd} 705168404Spjd 706168404Spjd/* 707168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 708168404Spjd */ 709168404Spjdvoid 710168404Spjdzfs_close(zfs_handle_t *zhp) 711168404Spjd{ 712168404Spjd if (zhp->zfs_mntopts) 713168404Spjd free(zhp->zfs_mntopts); 714168404Spjd nvlist_free(zhp->zfs_props); 715168404Spjd nvlist_free(zhp->zfs_user_props); 716219089Spjd nvlist_free(zhp->zfs_recvd_props); 717168404Spjd free(zhp); 718168404Spjd} 719168404Spjd 720209962Smmtypedef struct mnttab_node { 721209962Smm struct mnttab mtn_mt; 722209962Smm avl_node_t mtn_node; 723209962Smm} mnttab_node_t; 724209962Smm 725209962Smmstatic int 726209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 727209962Smm{ 728209962Smm const mnttab_node_t *mtn1 = arg1; 729209962Smm const mnttab_node_t *mtn2 = arg2; 730209962Smm int rv; 731209962Smm 732209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 733209962Smm 734209962Smm if (rv == 0) 735209962Smm return (0); 736209962Smm return (rv > 0 ? 1 : -1); 737209962Smm} 738209962Smm 739209962Smmvoid 740209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 741209962Smm{ 742209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 743209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 744209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 745209962Smm} 746209962Smm 747209962Smmvoid 748209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 749209962Smm{ 750209962Smm struct mnttab entry; 751209962Smm 752209962Smm rewind(hdl->libzfs_mnttab); 753209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 754209962Smm mnttab_node_t *mtn; 755209962Smm 756209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 757209962Smm continue; 758209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 759209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 760209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 761209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 762209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 763209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 764209962Smm } 765209962Smm} 766209962Smm 767209962Smmvoid 768209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 769209962Smm{ 770209962Smm void *cookie = NULL; 771209962Smm mnttab_node_t *mtn; 772209962Smm 773209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 774209962Smm free(mtn->mtn_mt.mnt_special); 775209962Smm free(mtn->mtn_mt.mnt_mountp); 776209962Smm free(mtn->mtn_mt.mnt_fstype); 777209962Smm free(mtn->mtn_mt.mnt_mntopts); 778209962Smm free(mtn); 779209962Smm } 780209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 781209962Smm} 782209962Smm 783209962Smmvoid 784209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 785209962Smm{ 786209962Smm hdl->libzfs_mnttab_enable = enable; 787209962Smm} 788209962Smm 789185029Spjdint 790209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 791209962Smm struct mnttab *entry) 792209962Smm{ 793209962Smm mnttab_node_t find; 794209962Smm mnttab_node_t *mtn; 795209962Smm 796209962Smm if (!hdl->libzfs_mnttab_enable) { 797209962Smm struct mnttab srch = { 0 }; 798209962Smm 799209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 800209962Smm libzfs_mnttab_fini(hdl); 801209962Smm rewind(hdl->libzfs_mnttab); 802209962Smm srch.mnt_special = (char *)fsname; 803209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 804209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 805209962Smm return (0); 806209962Smm else 807209962Smm return (ENOENT); 808209962Smm } 809209962Smm 810209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 811209962Smm libzfs_mnttab_update(hdl); 812209962Smm 813209962Smm find.mtn_mt.mnt_special = (char *)fsname; 814209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 815209962Smm if (mtn) { 816209962Smm *entry = mtn->mtn_mt; 817209962Smm return (0); 818209962Smm } 819209962Smm return (ENOENT); 820209962Smm} 821209962Smm 822209962Smmvoid 823209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 824209962Smm const char *mountp, const char *mntopts) 825209962Smm{ 826209962Smm mnttab_node_t *mtn; 827209962Smm 828209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 829209962Smm return; 830209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 831209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 832209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 833209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 834209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 835209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 836209962Smm} 837209962Smm 838209962Smmvoid 839209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 840209962Smm{ 841209962Smm mnttab_node_t find; 842209962Smm mnttab_node_t *ret; 843209962Smm 844209962Smm find.mtn_mt.mnt_special = (char *)fsname; 845209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 846209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 847209962Smm free(ret->mtn_mt.mnt_special); 848209962Smm free(ret->mtn_mt.mnt_mountp); 849209962Smm free(ret->mtn_mt.mnt_fstype); 850209962Smm free(ret->mtn_mt.mnt_mntopts); 851209962Smm free(ret); 852209962Smm } 853209962Smm} 854209962Smm 855209962Smmint 856185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 857168404Spjd{ 858185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 859168404Spjd 860185029Spjd if (zpool_handle == NULL) 861168404Spjd return (-1); 862168404Spjd 863185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 864185029Spjd ZPOOL_PROP_VERSION, NULL); 865168404Spjd return (0); 866168404Spjd} 867168404Spjd 868168404Spjd/* 869185029Spjd * The choice of reservation property depends on the SPA version. 870168404Spjd */ 871168404Spjdstatic int 872185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 873168404Spjd{ 874185029Spjd int spa_version; 875168404Spjd 876185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 877168404Spjd return (-1); 878168404Spjd 879185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 880185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 881185029Spjd else 882185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 883168404Spjd 884168404Spjd return (0); 885168404Spjd} 886168404Spjd 887168404Spjd/* 888168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 889168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 890168404Spjd * strings. 891168404Spjd */ 892168404Spjdnvlist_t * 893185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 894289500Smav uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl, 895289500Smav const char *errbuf) 896168404Spjd{ 897168404Spjd nvpair_t *elem; 898168404Spjd uint64_t intval; 899168404Spjd char *strval; 900185029Spjd zfs_prop_t prop; 901168404Spjd nvlist_t *ret; 902185029Spjd int chosen_normal = -1; 903185029Spjd int chosen_utf = -1; 904168404Spjd 905168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 906168404Spjd (void) no_memory(hdl); 907168404Spjd return (NULL); 908168404Spjd } 909168404Spjd 910209962Smm /* 911209962Smm * Make sure this property is valid and applies to this type. 912209962Smm */ 913209962Smm 914168404Spjd elem = NULL; 915168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 916185029Spjd const char *propname = nvpair_name(elem); 917168404Spjd 918209962Smm prop = zfs_name_to_prop(propname); 919209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 920185029Spjd /* 921209962Smm * This is a user property: make sure it's a 922185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 923185029Spjd */ 924185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 925185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 926185029Spjd "'%s' must be a string"), propname); 927185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 928185029Spjd goto error; 929168404Spjd } 930168404Spjd 931185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 932185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 933185029Spjd "property name '%s' is too long"), 934185029Spjd propname); 935185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 936185029Spjd goto error; 937185029Spjd } 938185029Spjd 939168404Spjd (void) nvpair_value_string(elem, &strval); 940168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 941168404Spjd (void) no_memory(hdl); 942168404Spjd goto error; 943168404Spjd } 944168404Spjd continue; 945168404Spjd } 946168404Spjd 947209962Smm /* 948209962Smm * Currently, only user properties can be modified on 949209962Smm * snapshots. 950209962Smm */ 951185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 952185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 953185029Spjd "this property can not be modified for snapshots")); 954185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 955185029Spjd goto error; 956185029Spjd } 957168404Spjd 958209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 959209962Smm zfs_userquota_prop_t uqtype; 960209962Smm char newpropname[128]; 961209962Smm char domain[128]; 962209962Smm uint64_t rid; 963209962Smm uint64_t valary[3]; 964209962Smm 965209962Smm if (userquota_propname_decode(propname, zoned, 966209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 967209962Smm zfs_error_aux(hdl, 968209962Smm dgettext(TEXT_DOMAIN, 969209962Smm "'%s' has an invalid user/group name"), 970209962Smm propname); 971209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 972209962Smm goto error; 973209962Smm } 974209962Smm 975209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 976209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 977209962Smm zfs_error_aux(hdl, 978209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 979209962Smm propname); 980209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 981209962Smm errbuf); 982209962Smm goto error; 983209962Smm } 984209962Smm 985209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 986209962Smm (void) nvpair_value_string(elem, &strval); 987209962Smm if (strcmp(strval, "none") == 0) { 988209962Smm intval = 0; 989209962Smm } else if (zfs_nicestrtonum(hdl, 990209962Smm strval, &intval) != 0) { 991209962Smm (void) zfs_error(hdl, 992209962Smm EZFS_BADPROP, errbuf); 993209962Smm goto error; 994209962Smm } 995209962Smm } else if (nvpair_type(elem) == 996209962Smm DATA_TYPE_UINT64) { 997209962Smm (void) nvpair_value_uint64(elem, &intval); 998209962Smm if (intval == 0) { 999209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1000209962Smm "use 'none' to disable " 1001209962Smm "userquota/groupquota")); 1002209962Smm goto error; 1003209962Smm } 1004209962Smm } else { 1005209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1006209962Smm "'%s' must be a number"), propname); 1007209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1008209962Smm goto error; 1009209962Smm } 1010209962Smm 1011219089Spjd /* 1012219089Spjd * Encode the prop name as 1013219089Spjd * userquota@<hex-rid>-domain, to make it easy 1014219089Spjd * for the kernel to decode. 1015219089Spjd */ 1016209962Smm (void) snprintf(newpropname, sizeof (newpropname), 1017219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 1018219089Spjd (longlong_t)rid, domain); 1019209962Smm valary[0] = uqtype; 1020209962Smm valary[1] = rid; 1021209962Smm valary[2] = intval; 1022209962Smm if (nvlist_add_uint64_array(ret, newpropname, 1023209962Smm valary, 3) != 0) { 1024209962Smm (void) no_memory(hdl); 1025209962Smm goto error; 1026209962Smm } 1027209962Smm continue; 1028228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 1029228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1030228103Smm "'%s' is readonly"), 1031228103Smm propname); 1032228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1033228103Smm goto error; 1034209962Smm } 1035209962Smm 1036209962Smm if (prop == ZPROP_INVAL) { 1037209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1038209962Smm "invalid property '%s'"), propname); 1039209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1040209962Smm goto error; 1041209962Smm } 1042209962Smm 1043168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 1044168404Spjd zfs_error_aux(hdl, 1045168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 1046168404Spjd "apply to datasets of this type"), propname); 1047168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 1048168404Spjd goto error; 1049168404Spjd } 1050168404Spjd 1051168404Spjd if (zfs_prop_readonly(prop) && 1052185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 1053168404Spjd zfs_error_aux(hdl, 1054168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 1055168404Spjd propname); 1056168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1057168404Spjd goto error; 1058168404Spjd } 1059168404Spjd 1060185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 1061185029Spjd &strval, &intval, errbuf) != 0) 1062185029Spjd goto error; 1063185029Spjd 1064168404Spjd /* 1065185029Spjd * Perform some additional checks for specific properties. 1066168404Spjd */ 1067185029Spjd switch (prop) { 1068185029Spjd case ZFS_PROP_VERSION: 1069185029Spjd { 1070185029Spjd int version; 1071168404Spjd 1072185029Spjd if (zhp == NULL) 1073185029Spjd break; 1074185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1075185029Spjd if (intval < version) { 1076168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1077185029Spjd "Can not downgrade; already at version %u"), 1078185029Spjd version); 1079168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1080168404Spjd goto error; 1081168404Spjd } 1082168404Spjd break; 1083168404Spjd } 1084168404Spjd 1085274337Sdelphij case ZFS_PROP_VOLBLOCKSIZE: 1086168404Spjd case ZFS_PROP_RECORDSIZE: 1087274337Sdelphij { 1088274337Sdelphij int maxbs = SPA_MAXBLOCKSIZE; 1089289500Smav if (zpool_hdl != NULL) { 1090289500Smav maxbs = zpool_get_prop_int(zpool_hdl, 1091274337Sdelphij ZPOOL_PROP_MAXBLOCKSIZE, NULL); 1092274337Sdelphij } 1093274337Sdelphij /* 1094274337Sdelphij * Volumes are limited to a volblocksize of 128KB, 1095274337Sdelphij * because they typically service workloads with 1096274337Sdelphij * small random writes, which incur a large performance 1097274337Sdelphij * penalty with large blocks. 1098274337Sdelphij */ 1099274337Sdelphij if (prop == ZFS_PROP_VOLBLOCKSIZE) 1100274337Sdelphij maxbs = SPA_OLD_MAXBLOCKSIZE; 1101274337Sdelphij /* 1102274337Sdelphij * The value must be a power of two between 1103274337Sdelphij * SPA_MINBLOCKSIZE and maxbs. 1104274337Sdelphij */ 1105168404Spjd if (intval < SPA_MINBLOCKSIZE || 1106274337Sdelphij intval > maxbs || !ISP2(intval)) { 1107168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1108274337Sdelphij "'%s' must be power of 2 from 512B " 1109274337Sdelphij "to %uKB"), propname, maxbs >> 10); 1110168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1111168404Spjd goto error; 1112168404Spjd } 1113168404Spjd break; 1114274337Sdelphij } 1115219089Spjd case ZFS_PROP_MLSLABEL: 1116219089Spjd { 1117277300Ssmh#ifdef illumos 1118219089Spjd /* 1119219089Spjd * Verify the mlslabel string and convert to 1120219089Spjd * internal hex label string. 1121219089Spjd */ 1122219089Spjd 1123219089Spjd m_label_t *new_sl; 1124219089Spjd char *hex = NULL; /* internal label string */ 1125219089Spjd 1126219089Spjd /* Default value is already OK. */ 1127219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1128219089Spjd break; 1129219089Spjd 1130219089Spjd /* Verify the label can be converted to binary form */ 1131219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1132219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1133219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1134219089Spjd goto badlabel; 1135168404Spjd } 1136168404Spjd 1137219089Spjd /* Now translate to hex internal label string */ 1138219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1139219089Spjd DEF_NAMES) != 0) { 1140219089Spjd if (hex) 1141219089Spjd free(hex); 1142219089Spjd goto badlabel; 1143219089Spjd } 1144219089Spjd m_label_free(new_sl); 1145219089Spjd 1146219089Spjd /* If string is already in internal form, we're done. */ 1147219089Spjd if (strcmp(strval, hex) == 0) { 1148219089Spjd free(hex); 1149219089Spjd break; 1150219089Spjd } 1151219089Spjd 1152219089Spjd /* Replace the label string with the internal form. */ 1153219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1154219089Spjd DATA_TYPE_STRING); 1155219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1156219089Spjd hex) == 0); 1157219089Spjd free(hex); 1158219089Spjd 1159168404Spjd break; 1160168404Spjd 1161219089Spjdbadlabel: 1162219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1163219089Spjd "invalid mlslabel '%s'"), strval); 1164219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1165219089Spjd m_label_free(new_sl); /* OK if null */ 1166277300Ssmh#else /* !illumos */ 1167219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1168219089Spjd "mlslabel is not supported on FreeBSD")); 1169219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1170277300Ssmh#endif /* illumos */ 1171219089Spjd goto error; 1172219089Spjd 1173219089Spjd } 1174219089Spjd 1175168404Spjd case ZFS_PROP_MOUNTPOINT: 1176185029Spjd { 1177185029Spjd namecheck_err_t why; 1178185029Spjd 1179168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1180168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1181168404Spjd break; 1182168404Spjd 1183185029Spjd if (mountpoint_namecheck(strval, &why)) { 1184185029Spjd switch (why) { 1185185029Spjd case NAME_ERR_LEADING_SLASH: 1186185029Spjd zfs_error_aux(hdl, 1187185029Spjd dgettext(TEXT_DOMAIN, 1188185029Spjd "'%s' must be an absolute path, " 1189185029Spjd "'none', or 'legacy'"), propname); 1190185029Spjd break; 1191185029Spjd case NAME_ERR_TOOLONG: 1192185029Spjd zfs_error_aux(hdl, 1193185029Spjd dgettext(TEXT_DOMAIN, 1194185029Spjd "component of '%s' is too long"), 1195185029Spjd propname); 1196185029Spjd break; 1197185029Spjd } 1198168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1199168404Spjd goto error; 1200168404Spjd } 1201185029Spjd } 1202185029Spjd 1203168404Spjd /*FALLTHRU*/ 1204168404Spjd 1205185029Spjd case ZFS_PROP_SHARESMB: 1206168404Spjd case ZFS_PROP_SHARENFS: 1207168404Spjd /* 1208185029Spjd * For the mountpoint and sharenfs or sharesmb 1209185029Spjd * properties, check if it can be set in a 1210185029Spjd * global/non-global zone based on 1211168404Spjd * the zoned property value: 1212168404Spjd * 1213168404Spjd * global zone non-global zone 1214168404Spjd * -------------------------------------------------- 1215168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1216168404Spjd * sharenfs (no) sharenfs (no) 1217185029Spjd * sharesmb (no) sharesmb (no) 1218168404Spjd * 1219168404Spjd * zoned=off mountpoint (yes) N/A 1220168404Spjd * sharenfs (yes) 1221185029Spjd * sharesmb (yes) 1222168404Spjd */ 1223168404Spjd if (zoned) { 1224168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1225168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1226168404Spjd "'%s' cannot be set on " 1227168404Spjd "dataset in a non-global zone"), 1228168404Spjd propname); 1229168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1230168404Spjd errbuf); 1231168404Spjd goto error; 1232185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1233185029Spjd prop == ZFS_PROP_SHARESMB) { 1234168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1235168404Spjd "'%s' cannot be set in " 1236168404Spjd "a non-global zone"), propname); 1237168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1238168404Spjd errbuf); 1239168404Spjd goto error; 1240168404Spjd } 1241168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1242168404Spjd /* 1243168404Spjd * If zoned property is 'off', this must be in 1244209962Smm * a global zone. If not, something is wrong. 1245168404Spjd */ 1246168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1247168404Spjd "'%s' cannot be set while dataset " 1248168404Spjd "'zoned' property is set"), propname); 1249168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1250168404Spjd goto error; 1251168404Spjd } 1252168404Spjd 1253168404Spjd /* 1254185029Spjd * At this point, it is legitimate to set the 1255185029Spjd * property. Now we want to make sure that the 1256185029Spjd * property value is valid if it is sharenfs. 1257168404Spjd */ 1258185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1259185029Spjd prop == ZFS_PROP_SHARESMB) && 1260185029Spjd strcmp(strval, "on") != 0 && 1261185029Spjd strcmp(strval, "off") != 0) { 1262185029Spjd zfs_share_proto_t proto; 1263168404Spjd 1264185029Spjd if (prop == ZFS_PROP_SHARESMB) 1265185029Spjd proto = PROTO_SMB; 1266185029Spjd else 1267185029Spjd proto = PROTO_NFS; 1268185029Spjd 1269185029Spjd /* 1270185029Spjd * Must be an valid sharing protocol 1271185029Spjd * option string so init the libshare 1272185029Spjd * in order to enable the parser and 1273185029Spjd * then parse the options. We use the 1274185029Spjd * control API since we don't care about 1275185029Spjd * the current configuration and don't 1276185029Spjd * want the overhead of loading it 1277185029Spjd * until we actually do something. 1278185029Spjd */ 1279185029Spjd 1280185029Spjd if (zfs_init_libshare(hdl, 1281185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1282185029Spjd /* 1283185029Spjd * An error occurred so we can't do 1284185029Spjd * anything 1285185029Spjd */ 1286185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1287185029Spjd "'%s' cannot be set: problem " 1288185029Spjd "in share initialization"), 1289185029Spjd propname); 1290185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1291185029Spjd errbuf); 1292185029Spjd goto error; 1293185029Spjd } 1294185029Spjd 1295185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1296185029Spjd /* 1297185029Spjd * There was an error in parsing so 1298185029Spjd * deal with it by issuing an error 1299185029Spjd * message and leaving after 1300185029Spjd * uninitializing the the libshare 1301185029Spjd * interface. 1302185029Spjd */ 1303185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1304185029Spjd "'%s' cannot be set to invalid " 1305185029Spjd "options"), propname); 1306185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1307185029Spjd errbuf); 1308185029Spjd zfs_uninit_libshare(hdl); 1309185029Spjd goto error; 1310185029Spjd } 1311185029Spjd zfs_uninit_libshare(hdl); 1312168404Spjd } 1313185029Spjd 1314168404Spjd break; 1315185029Spjd case ZFS_PROP_UTF8ONLY: 1316185029Spjd chosen_utf = (int)intval; 1317185029Spjd break; 1318185029Spjd case ZFS_PROP_NORMALIZE: 1319185029Spjd chosen_normal = (int)intval; 1320185029Spjd break; 1321168404Spjd } 1322168404Spjd 1323168404Spjd /* 1324168404Spjd * For changes to existing volumes, we have some additional 1325168404Spjd * checks to enforce. 1326168404Spjd */ 1327168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1328168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1329168404Spjd ZFS_PROP_VOLSIZE); 1330168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1331168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1332168404Spjd char buf[64]; 1333168404Spjd 1334168404Spjd switch (prop) { 1335168404Spjd case ZFS_PROP_RESERVATION: 1336185029Spjd case ZFS_PROP_REFRESERVATION: 1337168404Spjd if (intval > volsize) { 1338168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1339168404Spjd "'%s' is greater than current " 1340168404Spjd "volume size"), propname); 1341168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1342168404Spjd errbuf); 1343168404Spjd goto error; 1344168404Spjd } 1345168404Spjd break; 1346168404Spjd 1347168404Spjd case ZFS_PROP_VOLSIZE: 1348168404Spjd if (intval % blocksize != 0) { 1349168404Spjd zfs_nicenum(blocksize, buf, 1350168404Spjd sizeof (buf)); 1351168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1352168404Spjd "'%s' must be a multiple of " 1353168404Spjd "volume block size (%s)"), 1354168404Spjd propname, buf); 1355168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1356168404Spjd errbuf); 1357168404Spjd goto error; 1358168404Spjd } 1359168404Spjd 1360168404Spjd if (intval == 0) { 1361168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1362168404Spjd "'%s' cannot be zero"), 1363168404Spjd propname); 1364168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1365168404Spjd errbuf); 1366168404Spjd goto error; 1367168404Spjd } 1368168404Spjd break; 1369168404Spjd } 1370168404Spjd } 1371168404Spjd } 1372168404Spjd 1373168404Spjd /* 1374185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1375185029Spjd * enforce rejection of non-UTF8 names. 1376185029Spjd * 1377185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1378185029Spjd * was explicitly not chosen, it is an error. 1379185029Spjd */ 1380185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1381185029Spjd if (nvlist_add_uint64(ret, 1382185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1383185029Spjd (void) no_memory(hdl); 1384185029Spjd goto error; 1385185029Spjd } 1386185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1387185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1388185029Spjd "'%s' must be set 'on' if normalization chosen"), 1389185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1390185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1391185029Spjd goto error; 1392185029Spjd } 1393219089Spjd return (ret); 1394185029Spjd 1395219089Spjderror: 1396219089Spjd nvlist_free(ret); 1397219089Spjd return (NULL); 1398219089Spjd} 1399219089Spjd 1400219089Spjdint 1401219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1402219089Spjd{ 1403219089Spjd uint64_t old_volsize; 1404219089Spjd uint64_t new_volsize; 1405219089Spjd uint64_t old_reservation; 1406219089Spjd uint64_t new_reservation; 1407219089Spjd zfs_prop_t resv_prop; 1408289499Smav nvlist_t *props; 1409219089Spjd 1410185029Spjd /* 1411168404Spjd * If this is an existing volume, and someone is setting the volsize, 1412168404Spjd * make sure that it matches the reservation, or add it if necessary. 1413168404Spjd */ 1414219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1415219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1416219089Spjd return (-1); 1417219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1418289499Smav 1419289499Smav props = fnvlist_alloc(); 1420289499Smav fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1421289499Smav zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); 1422289499Smav 1423289499Smav if ((zvol_volsize_to_reservation(old_volsize, props) != 1424289499Smav old_reservation) || nvlist_exists(nvl, 1425289499Smav zfs_prop_to_name(resv_prop))) { 1426289499Smav fnvlist_free(props); 1427219089Spjd return (0); 1428219089Spjd } 1429219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1430289499Smav &new_volsize) != 0) { 1431289499Smav fnvlist_free(props); 1432219089Spjd return (-1); 1433289499Smav } 1434289499Smav new_reservation = zvol_volsize_to_reservation(new_volsize, props); 1435289499Smav fnvlist_free(props); 1436289499Smav 1437219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1438219089Spjd new_reservation) != 0) { 1439219089Spjd (void) no_memory(zhp->zfs_hdl); 1440219089Spjd return (-1); 1441219089Spjd } 1442219089Spjd return (1); 1443219089Spjd} 1444168404Spjd 1445219089Spjdvoid 1446219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1447219089Spjd char *errbuf) 1448219089Spjd{ 1449219089Spjd switch (err) { 1450185029Spjd 1451219089Spjd case ENOSPC: 1452219089Spjd /* 1453219089Spjd * For quotas and reservations, ENOSPC indicates 1454219089Spjd * something different; setting a quota or reservation 1455219089Spjd * doesn't use any disk space. 1456219089Spjd */ 1457219089Spjd switch (prop) { 1458219089Spjd case ZFS_PROP_QUOTA: 1459219089Spjd case ZFS_PROP_REFQUOTA: 1460219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1461219089Spjd "size is less than current used or " 1462219089Spjd "reserved space")); 1463219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1464219089Spjd break; 1465219089Spjd 1466219089Spjd case ZFS_PROP_RESERVATION: 1467219089Spjd case ZFS_PROP_REFRESERVATION: 1468219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1469219089Spjd "size is greater than available space")); 1470219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1471219089Spjd break; 1472219089Spjd 1473219089Spjd default: 1474219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1475219089Spjd break; 1476168404Spjd } 1477219089Spjd break; 1478219089Spjd 1479219089Spjd case EBUSY: 1480219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1481219089Spjd break; 1482219089Spjd 1483219089Spjd case EROFS: 1484219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1485219089Spjd break; 1486219089Spjd 1487271764Swill case E2BIG: 1488271764Swill zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1489271764Swill "property value too long")); 1490271764Swill (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1491271764Swill break; 1492271764Swill 1493219089Spjd case ENOTSUP: 1494219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1495219089Spjd "pool and or dataset must be upgraded to set this " 1496219089Spjd "property or value")); 1497219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1498219089Spjd break; 1499219089Spjd 1500219089Spjd case ERANGE: 1501274337Sdelphij case EDOM: 1502274337Sdelphij if (prop == ZFS_PROP_COMPRESSION || 1503274337Sdelphij prop == ZFS_PROP_RECORDSIZE) { 1504219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1505219089Spjd "property setting is not allowed on " 1506219089Spjd "bootable datasets")); 1507219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1508289422Smav } else if (prop == ZFS_PROP_CHECKSUM || 1509289422Smav prop == ZFS_PROP_DEDUP) { 1510289422Smav (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1511289422Smav "property setting is not allowed on " 1512289422Smav "root pools")); 1513289422Smav (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1514219089Spjd } else { 1515219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1516219089Spjd } 1517219089Spjd break; 1518219089Spjd 1519219089Spjd case EINVAL: 1520219089Spjd if (prop == ZPROP_INVAL) { 1521219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1522219089Spjd } else { 1523219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1524219089Spjd } 1525219089Spjd break; 1526219089Spjd 1527219089Spjd case EOVERFLOW: 1528219089Spjd /* 1529219089Spjd * This platform can't address a volume this big. 1530219089Spjd */ 1531219089Spjd#ifdef _ILP32 1532219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1533219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1534219089Spjd break; 1535219089Spjd } 1536219089Spjd#endif 1537219089Spjd /* FALLTHROUGH */ 1538219089Spjd default: 1539219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1540168404Spjd } 1541168404Spjd} 1542168404Spjd 1543168404Spjd/* 1544168404Spjd * Given a property name and value, set the property for the given dataset. 1545168404Spjd */ 1546168404Spjdint 1547168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1548168404Spjd{ 1549168404Spjd int ret = -1; 1550168404Spjd char errbuf[1024]; 1551168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1552289497Smav nvlist_t *nvl = NULL; 1553168404Spjd 1554168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1555168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1556168404Spjd zhp->zfs_name); 1557168404Spjd 1558168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1559168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1560168404Spjd (void) no_memory(hdl); 1561168404Spjd goto error; 1562168404Spjd } 1563168404Spjd 1564289497Smav ret = zfs_prop_set_list(zhp, nvl); 1565185029Spjd 1566289497Smaverror: 1567168404Spjd nvlist_free(nvl); 1568289497Smav return (ret); 1569289497Smav} 1570168404Spjd 1571168404Spjd 1572168404Spjd 1573289497Smav/* 1574289497Smav * Given an nvlist of property names and values, set the properties for the 1575289497Smav * given dataset. 1576289497Smav */ 1577289497Smavint 1578289497Smavzfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props) 1579289497Smav{ 1580289497Smav zfs_cmd_t zc = { 0 }; 1581289497Smav int ret = -1; 1582289497Smav prop_changelist_t **cls = NULL; 1583289497Smav int cl_idx; 1584289497Smav char errbuf[1024]; 1585289497Smav libzfs_handle_t *hdl = zhp->zfs_hdl; 1586289497Smav nvlist_t *nvl; 1587289497Smav int nvl_len; 1588289497Smav int added_resv; 1589219089Spjd 1590289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1591289497Smav dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1592289497Smav zhp->zfs_name); 1593168404Spjd 1594289497Smav if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props, 1595289500Smav zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, zhp->zpool_hdl, 1596289500Smav errbuf)) == NULL) 1597168404Spjd goto error; 1598168404Spjd 1599185029Spjd /* 1600289497Smav * We have to check for any extra properties which need to be added 1601289497Smav * before computing the length of the nvlist. 1602185029Spjd */ 1603289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1604289497Smav elem != NULL; 1605289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1606289497Smav if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE && 1607289497Smav (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) { 1608289497Smav goto error; 1609289497Smav } 1610238391Smm } 1611289497Smav /* 1612289497Smav * Check how many properties we're setting and allocate an array to 1613289497Smav * store changelist pointers for postfix(). 1614289497Smav */ 1615289497Smav nvl_len = 0; 1616289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1617289497Smav elem != NULL; 1618289497Smav elem = nvlist_next_nvpair(nvl, elem)) 1619289497Smav nvl_len++; 1620289497Smav if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL) 1621168404Spjd goto error; 1622168404Spjd 1623289497Smav cl_idx = 0; 1624289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1625289497Smav elem != NULL; 1626289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1627289497Smav 1628289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1629289497Smav 1630289497Smav assert(cl_idx < nvl_len); 1631289497Smav /* 1632289497Smav * We don't want to unmount & remount the dataset when changing 1633305460Savg * its canmount property. We only use the changelist logic to 1634305460Savg * unmount when setting canmount=off for a mounted filesystem 1635305460Savg * or when setting canmount=on for an unmounted filesystem. 1636305460Savg * For all other changes to canmount property the filesystem 1637305460Savg * remains the same. 1638289497Smav */ 1639297521Savg if (prop != ZFS_PROP_CANMOUNT || 1640297521Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF && 1641305460Savg zfs_is_mounted(zhp, NULL)) || 1642305460Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_ON && 1643305460Savg !zfs_is_mounted(zhp, NULL))) { 1644289497Smav cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); 1645289497Smav if (cls[cl_idx] == NULL) 1646289497Smav goto error; 1647289497Smav } 1648289497Smav 1649289497Smav if (prop == ZFS_PROP_MOUNTPOINT && 1650289497Smav changelist_haszonedchild(cls[cl_idx])) { 1651289497Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1652289497Smav "child dataset with inherited mountpoint is used " 1653289497Smav "in a non-global zone")); 1654289497Smav ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1655289497Smav goto error; 1656289497Smav } 1657289497Smav 1658289497Smav /* We don't support those properties on FreeBSD. */ 1659289497Smav switch (prop) { 1660289497Smav case ZFS_PROP_DEVICES: 1661289497Smav case ZFS_PROP_ISCSIOPTIONS: 1662289497Smav case ZFS_PROP_XATTR: 1663289497Smav case ZFS_PROP_VSCAN: 1664289497Smav case ZFS_PROP_NBMAND: 1665289497Smav case ZFS_PROP_MLSLABEL: 1666289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1667289497Smav "property '%s' not supported on FreeBSD", 1668289497Smav nvpair_name(elem)); 1669289497Smav ret = zfs_error(hdl, EZFS_PERM, errbuf); 1670289497Smav goto error; 1671289497Smav } 1672289497Smav 1673289497Smav if (cls[cl_idx] != NULL && 1674289497Smav (ret = changelist_prefix(cls[cl_idx])) != 0) 1675289497Smav goto error; 1676289497Smav 1677289497Smav cl_idx++; 1678289497Smav } 1679289497Smav assert(cl_idx == nvl_len); 1680289497Smav 1681168404Spjd /* 1682289497Smav * Execute the corresponding ioctl() to set this list of properties. 1683168404Spjd */ 1684168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1685168404Spjd 1686289497Smav if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || 1687289497Smav (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) 1688168404Spjd goto error; 1689168404Spjd 1690185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1691209962Smm 1692168404Spjd if (ret != 0) { 1693289497Smav /* Get the list of unset properties back and report them. */ 1694289497Smav nvlist_t *errorprops = NULL; 1695289497Smav if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) 1696289497Smav goto error; 1697289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1698289497Smav elem != NULL; 1699289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1700289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1701289497Smav zfs_setprop_error(hdl, prop, errno, errbuf); 1702289497Smav } 1703289497Smav nvlist_free(errorprops); 1704289497Smav 1705219089Spjd if (added_resv && errno == ENOSPC) { 1706219089Spjd /* clean up the volsize property we tried to set */ 1707219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1708219089Spjd ZFS_PROP_VOLSIZE); 1709219089Spjd nvlist_free(nvl); 1710289497Smav nvl = NULL; 1711219089Spjd zcmd_free_nvlists(&zc); 1712289497Smav 1713219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1714219089Spjd goto error; 1715219089Spjd if (nvlist_add_uint64(nvl, 1716219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1717219089Spjd old_volsize) != 0) 1718219089Spjd goto error; 1719219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1720219089Spjd goto error; 1721219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1722168404Spjd } 1723168404Spjd } else { 1724289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1725289497Smav if (cls[cl_idx] != NULL) { 1726289497Smav int clp_err = changelist_postfix(cls[cl_idx]); 1727289497Smav if (clp_err != 0) 1728289497Smav ret = clp_err; 1729289497Smav } 1730289497Smav } 1731185029Spjd 1732168404Spjd /* 1733168404Spjd * Refresh the statistics so the new property value 1734168404Spjd * is reflected. 1735168404Spjd */ 1736185029Spjd if (ret == 0) 1737168404Spjd (void) get_stats(zhp); 1738168404Spjd } 1739168404Spjd 1740168404Spjderror: 1741168404Spjd nvlist_free(nvl); 1742168404Spjd zcmd_free_nvlists(&zc); 1743289497Smav if (cls != NULL) { 1744289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1745289497Smav if (cls[cl_idx] != NULL) 1746289497Smav changelist_free(cls[cl_idx]); 1747289497Smav } 1748289497Smav free(cls); 1749289497Smav } 1750168404Spjd return (ret); 1751168404Spjd} 1752168404Spjd 1753168404Spjd/* 1754219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1755219089Spjd * is TRUE, revert to the received value, if any. 1756168404Spjd */ 1757168404Spjdint 1758219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1759168404Spjd{ 1760168404Spjd zfs_cmd_t zc = { 0 }; 1761168404Spjd int ret; 1762168404Spjd prop_changelist_t *cl; 1763168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1764168404Spjd char errbuf[1024]; 1765168404Spjd zfs_prop_t prop; 1766168404Spjd 1767168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1768168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1769168404Spjd 1770219089Spjd zc.zc_cookie = received; 1771185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1772168404Spjd /* 1773168404Spjd * For user properties, the amount of work we have to do is very 1774168404Spjd * small, so just do it here. 1775168404Spjd */ 1776168404Spjd if (!zfs_prop_user(propname)) { 1777168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1778168404Spjd "invalid property")); 1779168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1780168404Spjd } 1781168404Spjd 1782168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1783168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1784168404Spjd 1785185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1786168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1787168404Spjd 1788168404Spjd return (0); 1789168404Spjd } 1790168404Spjd 1791168404Spjd /* 1792168404Spjd * Verify that this property is inheritable. 1793168404Spjd */ 1794168404Spjd if (zfs_prop_readonly(prop)) 1795168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1796168404Spjd 1797219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1798168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1799168404Spjd 1800168404Spjd /* 1801168404Spjd * Check to see if the value applies to this type 1802168404Spjd */ 1803168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1804168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1805168404Spjd 1806168404Spjd /* 1807219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1808168404Spjd */ 1809168404Spjd propname = zfs_prop_to_name(prop); 1810168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1811168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1812168404Spjd 1813168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1814168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1815168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1816168404Spjd "dataset is used in a non-global zone")); 1817168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1818168404Spjd } 1819168404Spjd 1820168404Spjd /* 1821168404Spjd * Determine datasets which will be affected by this change, if any. 1822168404Spjd */ 1823185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1824168404Spjd return (-1); 1825168404Spjd 1826168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1827168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1828168404Spjd "child dataset with inherited mountpoint is used " 1829168404Spjd "in a non-global zone")); 1830168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1831168404Spjd goto error; 1832168404Spjd } 1833168404Spjd 1834168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1835168404Spjd goto error; 1836168404Spjd 1837185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1838168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1839168404Spjd } else { 1840168404Spjd 1841168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1842168404Spjd goto error; 1843168404Spjd 1844168404Spjd /* 1845168404Spjd * Refresh the statistics so the new property is reflected. 1846168404Spjd */ 1847168404Spjd (void) get_stats(zhp); 1848168404Spjd } 1849168404Spjd 1850168404Spjderror: 1851168404Spjd changelist_free(cl); 1852168404Spjd return (ret); 1853168404Spjd} 1854168404Spjd 1855168404Spjd/* 1856168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1857168404Spjd * extract them appropriately. 1858168404Spjd */ 1859168404Spjdstatic uint64_t 1860168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1861168404Spjd{ 1862168404Spjd nvlist_t *nv; 1863168404Spjd uint64_t value; 1864168404Spjd 1865168404Spjd *source = NULL; 1866168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1867168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1868185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1869185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1870168404Spjd } else { 1871205198Sdelphij verify(!zhp->zfs_props_table || 1872205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1873168404Spjd value = zfs_prop_default_numeric(prop); 1874168404Spjd *source = ""; 1875168404Spjd } 1876168404Spjd 1877168404Spjd return (value); 1878168404Spjd} 1879168404Spjd 1880289362Smavstatic const char * 1881168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1882168404Spjd{ 1883168404Spjd nvlist_t *nv; 1884289362Smav const char *value; 1885168404Spjd 1886168404Spjd *source = NULL; 1887168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1888168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1889289362Smav value = fnvlist_lookup_string(nv, ZPROP_VALUE); 1890185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1891168404Spjd } else { 1892205198Sdelphij verify(!zhp->zfs_props_table || 1893205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1894289362Smav value = zfs_prop_default_string(prop); 1895168404Spjd *source = ""; 1896168404Spjd } 1897168404Spjd 1898168404Spjd return (value); 1899168404Spjd} 1900168404Spjd 1901219089Spjdstatic boolean_t 1902219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1903219089Spjd{ 1904219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1905219089Spjd} 1906219089Spjd 1907219089Spjdstatic void 1908219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1909219089Spjd{ 1910219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1911219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1912219089Spjd} 1913219089Spjd 1914219089Spjdstatic void 1915219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1916219089Spjd{ 1917219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1918219089Spjd *cookie = 0; 1919219089Spjd} 1920219089Spjd 1921168404Spjd/* 1922168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1923168404Spjd * zfs_prop_get_int() are built using this interface. 1924168404Spjd * 1925168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1926168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1927168404Spjd * If they differ from the on-disk values, report the current values and mark 1928168404Spjd * the source "temporary". 1929168404Spjd */ 1930168404Spjdstatic int 1931185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1932168404Spjd char **source, uint64_t *val) 1933168404Spjd{ 1934185029Spjd zfs_cmd_t zc = { 0 }; 1935185029Spjd nvlist_t *zplprops = NULL; 1936168404Spjd struct mnttab mnt; 1937168404Spjd char *mntopt_on = NULL; 1938168404Spjd char *mntopt_off = NULL; 1939219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1940168404Spjd 1941168404Spjd *source = NULL; 1942168404Spjd 1943168404Spjd switch (prop) { 1944168404Spjd case ZFS_PROP_ATIME: 1945168404Spjd mntopt_on = MNTOPT_ATIME; 1946168404Spjd mntopt_off = MNTOPT_NOATIME; 1947168404Spjd break; 1948168404Spjd 1949168404Spjd case ZFS_PROP_DEVICES: 1950168404Spjd mntopt_on = MNTOPT_DEVICES; 1951168404Spjd mntopt_off = MNTOPT_NODEVICES; 1952168404Spjd break; 1953168404Spjd 1954168404Spjd case ZFS_PROP_EXEC: 1955168404Spjd mntopt_on = MNTOPT_EXEC; 1956168404Spjd mntopt_off = MNTOPT_NOEXEC; 1957168404Spjd break; 1958168404Spjd 1959168404Spjd case ZFS_PROP_READONLY: 1960168404Spjd mntopt_on = MNTOPT_RO; 1961168404Spjd mntopt_off = MNTOPT_RW; 1962168404Spjd break; 1963168404Spjd 1964168404Spjd case ZFS_PROP_SETUID: 1965168404Spjd mntopt_on = MNTOPT_SETUID; 1966168404Spjd mntopt_off = MNTOPT_NOSETUID; 1967168404Spjd break; 1968168404Spjd 1969168404Spjd case ZFS_PROP_XATTR: 1970168404Spjd mntopt_on = MNTOPT_XATTR; 1971168404Spjd mntopt_off = MNTOPT_NOXATTR; 1972168404Spjd break; 1973185029Spjd 1974185029Spjd case ZFS_PROP_NBMAND: 1975185029Spjd mntopt_on = MNTOPT_NBMAND; 1976185029Spjd mntopt_off = MNTOPT_NONBMAND; 1977185029Spjd break; 1978168404Spjd } 1979168404Spjd 1980168404Spjd /* 1981168404Spjd * Because looking up the mount options is potentially expensive 1982168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1983168404Spjd * we're looking up a property which requires its presence. 1984168404Spjd */ 1985168404Spjd if (!zhp->zfs_mntcheck && 1986168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1987209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1988209962Smm struct mnttab entry; 1989168404Spjd 1990209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1991209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1992168404Spjd entry.mnt_mntopts); 1993168404Spjd if (zhp->zfs_mntopts == NULL) 1994168404Spjd return (-1); 1995168404Spjd } 1996168404Spjd 1997168404Spjd zhp->zfs_mntcheck = B_TRUE; 1998168404Spjd } 1999168404Spjd 2000168404Spjd if (zhp->zfs_mntopts == NULL) 2001168404Spjd mnt.mnt_mntopts = ""; 2002168404Spjd else 2003168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 2004168404Spjd 2005168404Spjd switch (prop) { 2006168404Spjd case ZFS_PROP_ATIME: 2007168404Spjd case ZFS_PROP_DEVICES: 2008168404Spjd case ZFS_PROP_EXEC: 2009168404Spjd case ZFS_PROP_READONLY: 2010168404Spjd case ZFS_PROP_SETUID: 2011168404Spjd case ZFS_PROP_XATTR: 2012185029Spjd case ZFS_PROP_NBMAND: 2013168404Spjd *val = getprop_uint64(zhp, prop, source); 2014168404Spjd 2015219089Spjd if (received) 2016219089Spjd break; 2017219089Spjd 2018168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 2019168404Spjd *val = B_TRUE; 2020168404Spjd if (src) 2021185029Spjd *src = ZPROP_SRC_TEMPORARY; 2022168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 2023168404Spjd *val = B_FALSE; 2024168404Spjd if (src) 2025185029Spjd *src = ZPROP_SRC_TEMPORARY; 2026168404Spjd } 2027168404Spjd break; 2028168404Spjd 2029168404Spjd case ZFS_PROP_CANMOUNT: 2030219089Spjd case ZFS_PROP_VOLSIZE: 2031168404Spjd case ZFS_PROP_QUOTA: 2032185029Spjd case ZFS_PROP_REFQUOTA: 2033168404Spjd case ZFS_PROP_RESERVATION: 2034185029Spjd case ZFS_PROP_REFRESERVATION: 2035264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2036264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2037264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2038264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2039168404Spjd *val = getprop_uint64(zhp, prop, source); 2040219089Spjd 2041219089Spjd if (*source == NULL) { 2042219089Spjd /* not default, must be local */ 2043168404Spjd *source = zhp->zfs_name; 2044219089Spjd } 2045168404Spjd break; 2046168404Spjd 2047168404Spjd case ZFS_PROP_MOUNTED: 2048168404Spjd *val = (zhp->zfs_mntopts != NULL); 2049168404Spjd break; 2050168404Spjd 2051168404Spjd case ZFS_PROP_NUMCLONES: 2052168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 2053168404Spjd break; 2054168404Spjd 2055185029Spjd case ZFS_PROP_VERSION: 2056185029Spjd case ZFS_PROP_NORMALIZE: 2057185029Spjd case ZFS_PROP_UTF8ONLY: 2058185029Spjd case ZFS_PROP_CASE: 2059185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 2060185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 2061185029Spjd return (-1); 2062185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2063185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 2064185029Spjd zcmd_free_nvlists(&zc); 2065219089Spjd return (-1); 2066185029Spjd } 2067185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 2068185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 2069185029Spjd val) != 0) { 2070185029Spjd zcmd_free_nvlists(&zc); 2071219089Spjd return (-1); 2072185029Spjd } 2073296528Smav nvlist_free(zplprops); 2074185029Spjd zcmd_free_nvlists(&zc); 2075185029Spjd break; 2076185029Spjd 2077253819Sdelphij case ZFS_PROP_INCONSISTENT: 2078253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 2079253819Sdelphij break; 2080253819Sdelphij 2081168404Spjd default: 2082185029Spjd switch (zfs_prop_get_type(prop)) { 2083185029Spjd case PROP_TYPE_NUMBER: 2084185029Spjd case PROP_TYPE_INDEX: 2085185029Spjd *val = getprop_uint64(zhp, prop, source); 2086185029Spjd /* 2087209962Smm * If we tried to use a default value for a 2088185029Spjd * readonly property, it means that it was not 2089219089Spjd * present. 2090185029Spjd */ 2091185029Spjd if (zfs_prop_readonly(prop) && 2092219089Spjd *source != NULL && (*source)[0] == '\0') { 2093219089Spjd *source = NULL; 2094185029Spjd } 2095185029Spjd break; 2096185029Spjd 2097185029Spjd case PROP_TYPE_STRING: 2098185029Spjd default: 2099185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2100185029Spjd "cannot get non-numeric property")); 2101185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2102185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2103185029Spjd } 2104168404Spjd } 2105168404Spjd 2106168404Spjd return (0); 2107168404Spjd} 2108168404Spjd 2109168404Spjd/* 2110168404Spjd * Calculate the source type, given the raw source string. 2111168404Spjd */ 2112168404Spjdstatic void 2113185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2114168404Spjd char *statbuf, size_t statlen) 2115168404Spjd{ 2116185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2117168404Spjd return; 2118168404Spjd 2119168404Spjd if (source == NULL) { 2120185029Spjd *srctype = ZPROP_SRC_NONE; 2121168404Spjd } else if (source[0] == '\0') { 2122185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2123219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2124219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2125168404Spjd } else { 2126168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2127185029Spjd *srctype = ZPROP_SRC_LOCAL; 2128168404Spjd } else { 2129168404Spjd (void) strlcpy(statbuf, source, statlen); 2130185029Spjd *srctype = ZPROP_SRC_INHERITED; 2131168404Spjd } 2132168404Spjd } 2133168404Spjd 2134168404Spjd} 2135168404Spjd 2136219089Spjdint 2137219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2138219089Spjd size_t proplen, boolean_t literal) 2139219089Spjd{ 2140219089Spjd zfs_prop_t prop; 2141219089Spjd int err = 0; 2142219089Spjd 2143219089Spjd if (zhp->zfs_recvd_props == NULL) 2144219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2145219089Spjd return (-1); 2146219089Spjd 2147219089Spjd prop = zfs_name_to_prop(propname); 2148219089Spjd 2149219089Spjd if (prop != ZPROP_INVAL) { 2150219089Spjd uint64_t cookie; 2151219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2152219089Spjd return (-1); 2153219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2154219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2155219089Spjd NULL, NULL, 0, literal); 2156219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2157219089Spjd } else { 2158219089Spjd nvlist_t *propval; 2159219089Spjd char *recvdval; 2160219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2161219089Spjd propname, &propval) != 0) 2162219089Spjd return (-1); 2163219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2164219089Spjd &recvdval) == 0); 2165219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2166219089Spjd } 2167219089Spjd 2168219089Spjd return (err == 0 ? 0 : -1); 2169219089Spjd} 2170219089Spjd 2171228103Smmstatic int 2172228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2173228103Smm{ 2174228103Smm nvlist_t *value; 2175228103Smm nvpair_t *pair; 2176228103Smm 2177228103Smm value = zfs_get_clones_nvl(zhp); 2178228103Smm if (value == NULL) 2179228103Smm return (-1); 2180228103Smm 2181228103Smm propbuf[0] = '\0'; 2182228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2183228103Smm pair = nvlist_next_nvpair(value, pair)) { 2184228103Smm if (propbuf[0] != '\0') 2185228103Smm (void) strlcat(propbuf, ",", proplen); 2186228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2187228103Smm } 2188228103Smm 2189228103Smm return (0); 2190228103Smm} 2191228103Smm 2192228103Smmstruct get_clones_arg { 2193228103Smm uint64_t numclones; 2194228103Smm nvlist_t *value; 2195228103Smm const char *origin; 2196228103Smm char buf[ZFS_MAXNAMELEN]; 2197228103Smm}; 2198228103Smm 2199228103Smmint 2200228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2201228103Smm{ 2202228103Smm struct get_clones_arg *gca = arg; 2203228103Smm 2204228103Smm if (gca->numclones == 0) { 2205228103Smm zfs_close(zhp); 2206228103Smm return (0); 2207228103Smm } 2208228103Smm 2209228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2210228103Smm NULL, NULL, 0, B_TRUE) != 0) 2211228103Smm goto out; 2212228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2213248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2214228103Smm gca->numclones--; 2215228103Smm } 2216228103Smm 2217228103Smmout: 2218228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2219228103Smm zfs_close(zhp); 2220228103Smm return (0); 2221228103Smm} 2222228103Smm 2223228103Smmnvlist_t * 2224228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2225228103Smm{ 2226228103Smm nvlist_t *nv, *value; 2227228103Smm 2228228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2229228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2230228103Smm struct get_clones_arg gca; 2231228103Smm 2232228103Smm /* 2233228103Smm * if this is a snapshot, then the kernel wasn't able 2234228103Smm * to get the clones. Do it by slowly iterating. 2235228103Smm */ 2236228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2237228103Smm return (NULL); 2238228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2239228103Smm return (NULL); 2240228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2241228103Smm nvlist_free(nv); 2242228103Smm return (NULL); 2243228103Smm } 2244228103Smm 2245228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2246228103Smm gca.value = value; 2247228103Smm gca.origin = zhp->zfs_name; 2248228103Smm 2249228103Smm if (gca.numclones != 0) { 2250228103Smm zfs_handle_t *root; 2251228103Smm char pool[ZFS_MAXNAMELEN]; 2252228103Smm char *cp = pool; 2253228103Smm 2254228103Smm /* get the pool name */ 2255228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2256228103Smm (void) strsep(&cp, "/@"); 2257228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2258228103Smm ZFS_TYPE_FILESYSTEM); 2259228103Smm 2260228103Smm (void) get_clones_cb(root, &gca); 2261228103Smm } 2262228103Smm 2263228103Smm if (gca.numclones != 0 || 2264228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2265228103Smm nvlist_add_nvlist(zhp->zfs_props, 2266228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2267228103Smm nvlist_free(nv); 2268228103Smm nvlist_free(value); 2269228103Smm return (NULL); 2270228103Smm } 2271228103Smm nvlist_free(nv); 2272228103Smm nvlist_free(value); 2273228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2274228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2275228103Smm } 2276228103Smm 2277228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2278228103Smm 2279228103Smm return (value); 2280228103Smm} 2281228103Smm 2282168404Spjd/* 2283168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2284168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2285168404Spjd * human-readable form. 2286168404Spjd * 2287168404Spjd * Returns 0 on success, or -1 on error. 2288168404Spjd */ 2289168404Spjdint 2290168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2291185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2292168404Spjd{ 2293168404Spjd char *source = NULL; 2294168404Spjd uint64_t val; 2295289362Smav const char *str; 2296168404Spjd const char *strval; 2297219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2298168404Spjd 2299168404Spjd /* 2300168404Spjd * Check to see if this property applies to our object 2301168404Spjd */ 2302168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2303168404Spjd return (-1); 2304168404Spjd 2305219089Spjd if (received && zfs_prop_readonly(prop)) 2306219089Spjd return (-1); 2307219089Spjd 2308168404Spjd if (src) 2309185029Spjd *src = ZPROP_SRC_NONE; 2310168404Spjd 2311168404Spjd switch (prop) { 2312168404Spjd case ZFS_PROP_CREATION: 2313168404Spjd /* 2314168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2315168404Spjd * this into a string unless 'literal' is specified. 2316168404Spjd */ 2317168404Spjd { 2318168404Spjd val = getprop_uint64(zhp, prop, &source); 2319168404Spjd time_t time = (time_t)val; 2320168404Spjd struct tm t; 2321168404Spjd 2322168404Spjd if (literal || 2323168404Spjd localtime_r(&time, &t) == NULL || 2324168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2325168404Spjd &t) == 0) 2326168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2327168404Spjd } 2328168404Spjd break; 2329168404Spjd 2330168404Spjd case ZFS_PROP_MOUNTPOINT: 2331168404Spjd /* 2332168404Spjd * Getting the precise mountpoint can be tricky. 2333168404Spjd * 2334168404Spjd * - for 'none' or 'legacy', return those values. 2335168404Spjd * - for inherited mountpoints, we want to take everything 2336168404Spjd * after our ancestor and append it to the inherited value. 2337168404Spjd * 2338168404Spjd * If the pool has an alternate root, we want to prepend that 2339168404Spjd * root to any values we return. 2340168404Spjd */ 2341185029Spjd 2342168404Spjd str = getprop_string(zhp, prop, &source); 2343168404Spjd 2344185029Spjd if (str[0] == '/') { 2345185029Spjd char buf[MAXPATHLEN]; 2346185029Spjd char *root = buf; 2347219089Spjd const char *relpath; 2348168404Spjd 2349219089Spjd /* 2350219089Spjd * If we inherit the mountpoint, even from a dataset 2351219089Spjd * with a received value, the source will be the path of 2352219089Spjd * the dataset we inherit from. If source is 2353219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2354219089Spjd * inherited. 2355219089Spjd */ 2356219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2357219089Spjd relpath = ""; 2358219089Spjd } else { 2359219089Spjd relpath = zhp->zfs_name + strlen(source); 2360219089Spjd if (relpath[0] == '/') 2361219089Spjd relpath++; 2362219089Spjd } 2363185029Spjd 2364185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2365263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2366263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2367185029Spjd root[0] = '\0'; 2368185029Spjd /* 2369185029Spjd * Special case an alternate root of '/'. This will 2370185029Spjd * avoid having multiple leading slashes in the 2371185029Spjd * mountpoint path. 2372185029Spjd */ 2373185029Spjd if (strcmp(root, "/") == 0) 2374185029Spjd root++; 2375185029Spjd 2376185029Spjd /* 2377185029Spjd * If the mountpoint is '/' then skip over this 2378185029Spjd * if we are obtaining either an alternate root or 2379185029Spjd * an inherited mountpoint. 2380185029Spjd */ 2381185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2382185029Spjd relpath[0] != '\0')) 2383168404Spjd str++; 2384168404Spjd 2385168404Spjd if (relpath[0] == '\0') 2386168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2387168404Spjd root, str); 2388168404Spjd else 2389168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2390168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2391168404Spjd relpath); 2392168404Spjd } else { 2393168404Spjd /* 'legacy' or 'none' */ 2394168404Spjd (void) strlcpy(propbuf, str, proplen); 2395168404Spjd } 2396168404Spjd 2397168404Spjd break; 2398168404Spjd 2399168404Spjd case ZFS_PROP_ORIGIN: 2400289362Smav str = getprop_string(zhp, prop, &source); 2401289362Smav if (str == NULL) 2402168404Spjd return (-1); 2403289362Smav (void) strlcpy(propbuf, str, proplen); 2404168404Spjd break; 2405168404Spjd 2406228103Smm case ZFS_PROP_CLONES: 2407228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2408228103Smm return (-1); 2409228103Smm break; 2410228103Smm 2411168404Spjd case ZFS_PROP_QUOTA: 2412185029Spjd case ZFS_PROP_REFQUOTA: 2413168404Spjd case ZFS_PROP_RESERVATION: 2414185029Spjd case ZFS_PROP_REFRESERVATION: 2415185029Spjd 2416168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2417168404Spjd return (-1); 2418168404Spjd 2419168404Spjd /* 2420168404Spjd * If quota or reservation is 0, we translate this into 'none' 2421168404Spjd * (unless literal is set), and indicate that it's the default 2422168404Spjd * value. Otherwise, we print the number nicely and indicate 2423168404Spjd * that its set locally. 2424168404Spjd */ 2425168404Spjd if (val == 0) { 2426168404Spjd if (literal) 2427168404Spjd (void) strlcpy(propbuf, "0", proplen); 2428168404Spjd else 2429168404Spjd (void) strlcpy(propbuf, "none", proplen); 2430168404Spjd } else { 2431168404Spjd if (literal) 2432168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2433168404Spjd (u_longlong_t)val); 2434168404Spjd else 2435168404Spjd zfs_nicenum(val, propbuf, proplen); 2436168404Spjd } 2437168404Spjd break; 2438168404Spjd 2439264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2440264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2441264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2442264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2443264835Sdelphij 2444264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2445264835Sdelphij return (-1); 2446264835Sdelphij 2447264835Sdelphij /* 2448264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2449264835Sdelphij * literal is set), and indicate that it's the default value. 2450264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2451264835Sdelphij * set locally. 2452264835Sdelphij */ 2453264835Sdelphij if (literal) { 2454264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2455264835Sdelphij (u_longlong_t)val); 2456264835Sdelphij } else if (val == UINT64_MAX) { 2457264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2458264835Sdelphij } else { 2459264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2460264835Sdelphij } 2461264835Sdelphij break; 2462264835Sdelphij 2463223623Smm case ZFS_PROP_REFRATIO: 2464168404Spjd case ZFS_PROP_COMPRESSRATIO: 2465168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2466168404Spjd return (-1); 2467219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2468219089Spjd (u_longlong_t)(val / 100), 2469219089Spjd (u_longlong_t)(val % 100)); 2470168404Spjd break; 2471168404Spjd 2472168404Spjd case ZFS_PROP_TYPE: 2473168404Spjd switch (zhp->zfs_type) { 2474168404Spjd case ZFS_TYPE_FILESYSTEM: 2475168404Spjd str = "filesystem"; 2476168404Spjd break; 2477168404Spjd case ZFS_TYPE_VOLUME: 2478168404Spjd str = "volume"; 2479168404Spjd break; 2480168404Spjd case ZFS_TYPE_SNAPSHOT: 2481168404Spjd str = "snapshot"; 2482168404Spjd break; 2483260183Sdelphij case ZFS_TYPE_BOOKMARK: 2484260183Sdelphij str = "bookmark"; 2485260183Sdelphij break; 2486168404Spjd default: 2487168404Spjd abort(); 2488168404Spjd } 2489168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2490168404Spjd break; 2491168404Spjd 2492168404Spjd case ZFS_PROP_MOUNTED: 2493168404Spjd /* 2494168404Spjd * The 'mounted' property is a pseudo-property that described 2495168404Spjd * whether the filesystem is currently mounted. Even though 2496168404Spjd * it's a boolean value, the typical values of "on" and "off" 2497168404Spjd * don't make sense, so we translate to "yes" and "no". 2498168404Spjd */ 2499168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2500168404Spjd src, &source, &val) != 0) 2501168404Spjd return (-1); 2502168404Spjd if (val) 2503168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2504168404Spjd else 2505168404Spjd (void) strlcpy(propbuf, "no", proplen); 2506168404Spjd break; 2507168404Spjd 2508168404Spjd case ZFS_PROP_NAME: 2509168404Spjd /* 2510168404Spjd * The 'name' property is a pseudo-property derived from the 2511168404Spjd * dataset name. It is presented as a real property to simplify 2512168404Spjd * consumers. 2513168404Spjd */ 2514168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2515168404Spjd break; 2516168404Spjd 2517219089Spjd case ZFS_PROP_MLSLABEL: 2518219089Spjd { 2519277300Ssmh#ifdef illumos 2520219089Spjd m_label_t *new_sl = NULL; 2521219089Spjd char *ascii = NULL; /* human readable label */ 2522219089Spjd 2523219089Spjd (void) strlcpy(propbuf, 2524219089Spjd getprop_string(zhp, prop, &source), proplen); 2525219089Spjd 2526219089Spjd if (literal || (strcasecmp(propbuf, 2527219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2528219089Spjd break; 2529219089Spjd 2530219089Spjd /* 2531219089Spjd * Try to translate the internal hex string to 2532219089Spjd * human-readable output. If there are any 2533219089Spjd * problems just use the hex string. 2534219089Spjd */ 2535219089Spjd 2536219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2537219089Spjd L_NO_CORRECTION, NULL) == -1) { 2538219089Spjd m_label_free(new_sl); 2539219089Spjd break; 2540219089Spjd } 2541219089Spjd 2542219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2543219089Spjd DEF_NAMES) != 0) { 2544219089Spjd if (ascii) 2545219089Spjd free(ascii); 2546219089Spjd m_label_free(new_sl); 2547219089Spjd break; 2548219089Spjd } 2549219089Spjd m_label_free(new_sl); 2550219089Spjd 2551219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2552219089Spjd free(ascii); 2553277300Ssmh#else /* !illumos */ 2554219089Spjd propbuf[0] = '\0'; 2555277300Ssmh#endif /* illumos */ 2556219089Spjd } 2557219089Spjd break; 2558219089Spjd 2559236705Smm case ZFS_PROP_GUID: 2560236705Smm /* 2561236705Smm * GUIDs are stored as numbers, but they are identifiers. 2562236705Smm * We don't want them to be pretty printed, because pretty 2563236705Smm * printing mangles the ID into a truncated and useless value. 2564236705Smm */ 2565236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2566236705Smm return (-1); 2567236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2568236705Smm break; 2569236705Smm 2570168404Spjd default: 2571185029Spjd switch (zfs_prop_get_type(prop)) { 2572185029Spjd case PROP_TYPE_NUMBER: 2573185029Spjd if (get_numeric_property(zhp, prop, src, 2574185029Spjd &source, &val) != 0) 2575185029Spjd return (-1); 2576185029Spjd if (literal) 2577185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2578185029Spjd (u_longlong_t)val); 2579185029Spjd else 2580185029Spjd zfs_nicenum(val, propbuf, proplen); 2581185029Spjd break; 2582185029Spjd 2583185029Spjd case PROP_TYPE_STRING: 2584289362Smav str = getprop_string(zhp, prop, &source); 2585289362Smav if (str == NULL) 2586289362Smav return (-1); 2587289362Smav (void) strlcpy(propbuf, str, proplen); 2588185029Spjd break; 2589185029Spjd 2590185029Spjd case PROP_TYPE_INDEX: 2591185029Spjd if (get_numeric_property(zhp, prop, src, 2592185029Spjd &source, &val) != 0) 2593185029Spjd return (-1); 2594185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2595185029Spjd return (-1); 2596185029Spjd (void) strlcpy(propbuf, strval, proplen); 2597185029Spjd break; 2598185029Spjd 2599185029Spjd default: 2600185029Spjd abort(); 2601185029Spjd } 2602168404Spjd } 2603168404Spjd 2604168404Spjd get_source(zhp, src, source, statbuf, statlen); 2605168404Spjd 2606168404Spjd return (0); 2607168404Spjd} 2608168404Spjd 2609168404Spjd/* 2610168404Spjd * Utility function to get the given numeric property. Does no validation that 2611168404Spjd * the given property is the appropriate type; should only be used with 2612168404Spjd * hard-coded property types. 2613168404Spjd */ 2614168404Spjduint64_t 2615168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2616168404Spjd{ 2617168404Spjd char *source; 2618168404Spjd uint64_t val; 2619168404Spjd 2620185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2621168404Spjd 2622168404Spjd return (val); 2623168404Spjd} 2624168404Spjd 2625185029Spjdint 2626185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2627185029Spjd{ 2628185029Spjd char buf[64]; 2629185029Spjd 2630209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2631185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2632185029Spjd} 2633185029Spjd 2634168404Spjd/* 2635168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2636168404Spjd */ 2637168404Spjdint 2638168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2639185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2640168404Spjd{ 2641168404Spjd char *source; 2642168404Spjd 2643168404Spjd /* 2644168404Spjd * Check to see if this property applies to our object 2645168404Spjd */ 2646185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2647168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2648168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2649168404Spjd zfs_prop_to_name(prop))); 2650185029Spjd } 2651168404Spjd 2652168404Spjd if (src) 2653185029Spjd *src = ZPROP_SRC_NONE; 2654168404Spjd 2655168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2656168404Spjd return (-1); 2657168404Spjd 2658168404Spjd get_source(zhp, src, source, statbuf, statlen); 2659168404Spjd 2660168404Spjd return (0); 2661168404Spjd} 2662168404Spjd 2663209962Smmstatic int 2664209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2665209962Smm char **domainp, idmap_rid_t *ridp) 2666209962Smm{ 2667277300Ssmh#ifdef illumos 2668209962Smm idmap_get_handle_t *get_hdl = NULL; 2669209962Smm idmap_stat status; 2670209962Smm int err = EINVAL; 2671209962Smm 2672219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2673209962Smm goto out; 2674209962Smm 2675209962Smm if (isuser) { 2676209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2677209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2678209962Smm } else { 2679209962Smm err = idmap_get_sidbygid(get_hdl, id, 2680209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2681209962Smm } 2682209962Smm if (err == IDMAP_SUCCESS && 2683209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2684209962Smm status == IDMAP_SUCCESS) 2685209962Smm err = 0; 2686209962Smm else 2687209962Smm err = EINVAL; 2688209962Smmout: 2689209962Smm if (get_hdl) 2690209962Smm idmap_get_destroy(get_hdl); 2691209962Smm return (err); 2692277300Ssmh#else /* !illumos */ 2693209962Smm assert(!"invalid code path"); 2694264852Ssmh return (EINVAL); // silence compiler warning 2695277300Ssmh#endif /* illumos */ 2696209962Smm} 2697209962Smm 2698168404Spjd/* 2699209962Smm * convert the propname into parameters needed by kernel 2700209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2701209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2702209962Smm */ 2703209962Smmstatic int 2704209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2705209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2706209962Smm{ 2707209962Smm zfs_userquota_prop_t type; 2708209962Smm char *cp, *end; 2709209962Smm char *numericsid = NULL; 2710209962Smm boolean_t isuser; 2711209962Smm 2712209962Smm domain[0] = '\0'; 2713275579Sdelphij *ridp = 0; 2714209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2715209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2716209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2717209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2718209962Smm break; 2719209962Smm } 2720209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2721209962Smm return (EINVAL); 2722209962Smm *typep = type; 2723209962Smm 2724209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2725209962Smm type == ZFS_PROP_USERUSED); 2726209962Smm 2727209962Smm cp = strchr(propname, '@') + 1; 2728209962Smm 2729209962Smm if (strchr(cp, '@')) { 2730277300Ssmh#ifdef illumos 2731209962Smm /* 2732209962Smm * It's a SID name (eg "user@domain") that needs to be 2733209962Smm * turned into S-1-domainID-RID. 2734209962Smm */ 2735275579Sdelphij int flag = 0; 2736275579Sdelphij idmap_stat stat, map_stat; 2737275579Sdelphij uid_t pid; 2738275579Sdelphij idmap_rid_t rid; 2739275579Sdelphij idmap_get_handle_t *gh = NULL; 2740275579Sdelphij 2741275579Sdelphij stat = idmap_get_create(&gh); 2742275579Sdelphij if (stat != IDMAP_SUCCESS) { 2743275579Sdelphij idmap_get_destroy(gh); 2744275579Sdelphij return (ENOMEM); 2745275579Sdelphij } 2746209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2747209962Smm return (ENOENT); 2748209962Smm if (isuser) { 2749275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2750275579Sdelphij if (stat < 0) 2751275579Sdelphij return (ENOENT); 2752275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2753275579Sdelphij &rid, &map_stat); 2754209962Smm } else { 2755275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2756275579Sdelphij if (stat < 0) 2757275579Sdelphij return (ENOENT); 2758275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2759275579Sdelphij &rid, &map_stat); 2760209962Smm } 2761275579Sdelphij if (stat < 0) { 2762275579Sdelphij idmap_get_destroy(gh); 2763209962Smm return (ENOENT); 2764209962Smm } 2765275579Sdelphij stat = idmap_get_mappings(gh); 2766275579Sdelphij idmap_get_destroy(gh); 2767275579Sdelphij 2768275579Sdelphij if (stat < 0) { 2769275579Sdelphij return (ENOENT); 2770275579Sdelphij } 2771209962Smm if (numericsid == NULL) 2772209962Smm return (ENOENT); 2773209962Smm cp = numericsid; 2774275579Sdelphij *ridp = rid; 2775209962Smm /* will be further decoded below */ 2776277300Ssmh#else /* !illumos */ 2777219089Spjd return (ENOENT); 2778277300Ssmh#endif /* illumos */ 2779209962Smm } 2780209962Smm 2781209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2782209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2783209962Smm (void) strlcpy(domain, cp, domainlen); 2784209962Smm errno = 0; 2785275579Sdelphij if (*ridp == 0) { 2786275579Sdelphij cp = strrchr(domain, '-'); 2787275579Sdelphij *cp = '\0'; 2788275579Sdelphij cp++; 2789275579Sdelphij *ridp = strtoull(cp, &end, 10); 2790275579Sdelphij } else { 2791275579Sdelphij end = ""; 2792275579Sdelphij } 2793209962Smm if (numericsid) { 2794209962Smm free(numericsid); 2795209962Smm numericsid = NULL; 2796209962Smm } 2797209962Smm if (errno != 0 || *end != '\0') 2798209962Smm return (EINVAL); 2799209962Smm } else if (!isdigit(*cp)) { 2800209962Smm /* 2801209962Smm * It's a user/group name (eg "user") that needs to be 2802209962Smm * turned into a uid/gid 2803209962Smm */ 2804209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2805209962Smm return (ENOENT); 2806209962Smm if (isuser) { 2807209962Smm struct passwd *pw; 2808209962Smm pw = getpwnam(cp); 2809209962Smm if (pw == NULL) 2810209962Smm return (ENOENT); 2811209962Smm *ridp = pw->pw_uid; 2812209962Smm } else { 2813209962Smm struct group *gr; 2814209962Smm gr = getgrnam(cp); 2815209962Smm if (gr == NULL) 2816209962Smm return (ENOENT); 2817209962Smm *ridp = gr->gr_gid; 2818209962Smm } 2819209962Smm } else { 2820209962Smm /* It's a user/group ID (eg "12345"). */ 2821209962Smm uid_t id = strtoul(cp, &end, 10); 2822209962Smm idmap_rid_t rid; 2823209962Smm char *mapdomain; 2824209962Smm 2825209962Smm if (*end != '\0') 2826209962Smm return (EINVAL); 2827209962Smm if (id > MAXUID) { 2828209962Smm /* It's an ephemeral ID. */ 2829209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2830209962Smm &mapdomain, &rid) != 0) 2831209962Smm return (ENOENT); 2832209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2833209962Smm *ridp = rid; 2834209962Smm } else { 2835209962Smm *ridp = id; 2836209962Smm } 2837209962Smm } 2838209962Smm 2839209962Smm ASSERT3P(numericsid, ==, NULL); 2840209962Smm return (0); 2841209962Smm} 2842209962Smm 2843209962Smmstatic int 2844209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2845209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2846209962Smm{ 2847209962Smm int err; 2848209962Smm zfs_cmd_t zc = { 0 }; 2849209962Smm 2850228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2851209962Smm 2852209962Smm err = userquota_propname_decode(propname, 2853209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2854209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2855209962Smm zc.zc_objset_type = *typep; 2856209962Smm if (err) 2857209962Smm return (err); 2858209962Smm 2859209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2860209962Smm if (err) 2861209962Smm return (err); 2862209962Smm 2863209962Smm *propvalue = zc.zc_cookie; 2864209962Smm return (0); 2865209962Smm} 2866209962Smm 2867209962Smmint 2868209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2869209962Smm uint64_t *propvalue) 2870209962Smm{ 2871209962Smm zfs_userquota_prop_t type; 2872209962Smm 2873209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2874209962Smm &type)); 2875209962Smm} 2876209962Smm 2877209962Smmint 2878209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2879209962Smm char *propbuf, int proplen, boolean_t literal) 2880209962Smm{ 2881209962Smm int err; 2882209962Smm uint64_t propvalue; 2883209962Smm zfs_userquota_prop_t type; 2884209962Smm 2885209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2886209962Smm &type); 2887209962Smm 2888209962Smm if (err) 2889209962Smm return (err); 2890209962Smm 2891209962Smm if (literal) { 2892209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2893209962Smm } else if (propvalue == 0 && 2894209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2895209962Smm (void) strlcpy(propbuf, "none", proplen); 2896209962Smm } else { 2897209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2898209962Smm } 2899209962Smm return (0); 2900209962Smm} 2901209962Smm 2902228103Smmint 2903228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2904228103Smm uint64_t *propvalue) 2905168404Spjd{ 2906228103Smm int err; 2907228103Smm zfs_cmd_t zc = { 0 }; 2908228103Smm const char *snapname; 2909168404Spjd 2910228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2911168404Spjd 2912228103Smm snapname = strchr(propname, '@') + 1; 2913228103Smm if (strchr(snapname, '@')) { 2914228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2915228103Smm } else { 2916228103Smm /* snapname is the short name, append it to zhp's fsname */ 2917228103Smm char *cp; 2918209962Smm 2919228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2920228103Smm sizeof (zc.zc_value)); 2921228103Smm cp = strchr(zc.zc_value, '@'); 2922228103Smm if (cp != NULL) 2923228103Smm *cp = '\0'; 2924228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2925228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2926228103Smm } 2927209962Smm 2928228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2929228103Smm if (err) 2930228103Smm return (err); 2931228103Smm 2932228103Smm *propvalue = zc.zc_cookie; 2933228103Smm return (0); 2934209962Smm} 2935209962Smm 2936168404Spjdint 2937228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2938228103Smm char *propbuf, int proplen, boolean_t literal) 2939168404Spjd{ 2940228103Smm int err; 2941228103Smm uint64_t propvalue; 2942168404Spjd 2943228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2944185029Spjd 2945228103Smm if (err) 2946228103Smm return (err); 2947209962Smm 2948228103Smm if (literal) { 2949228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2950228103Smm } else { 2951228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2952168404Spjd } 2953228103Smm return (0); 2954168404Spjd} 2955168404Spjd 2956168404Spjd/* 2957228103Smm * Returns the name of the given zfs handle. 2958168404Spjd */ 2959228103Smmconst char * 2960228103Smmzfs_get_name(const zfs_handle_t *zhp) 2961168404Spjd{ 2962228103Smm return (zhp->zfs_name); 2963228103Smm} 2964168404Spjd 2965228103Smm/* 2966228103Smm * Returns the type of the given zfs handle. 2967228103Smm */ 2968228103Smmzfs_type_t 2969228103Smmzfs_get_type(const zfs_handle_t *zhp) 2970228103Smm{ 2971228103Smm return (zhp->zfs_type); 2972168404Spjd} 2973168404Spjd 2974168404Spjd/* 2975219089Spjd * Is one dataset name a child dataset of another? 2976219089Spjd * 2977219089Spjd * Needs to handle these cases: 2978219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2979219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2980219089Spjd * Descendant? No. No. No. Yes. 2981219089Spjd */ 2982219089Spjdstatic boolean_t 2983219089Spjdis_descendant(const char *ds1, const char *ds2) 2984219089Spjd{ 2985219089Spjd size_t d1len = strlen(ds1); 2986219089Spjd 2987219089Spjd /* ds2 can't be a descendant if it's smaller */ 2988219089Spjd if (strlen(ds2) < d1len) 2989219089Spjd return (B_FALSE); 2990219089Spjd 2991219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2992219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2993219089Spjd} 2994219089Spjd 2995219089Spjd/* 2996168404Spjd * Given a complete name, return just the portion that refers to the parent. 2997228103Smm * Will return -1 if there is no parent (path is just the name of the 2998228103Smm * pool). 2999168404Spjd */ 3000168404Spjdstatic int 3001168404Spjdparent_name(const char *path, char *buf, size_t buflen) 3002168404Spjd{ 3003228103Smm char *slashp; 3004168404Spjd 3005228103Smm (void) strlcpy(buf, path, buflen); 3006228103Smm 3007228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 3008168404Spjd return (-1); 3009228103Smm *slashp = '\0'; 3010168404Spjd 3011168404Spjd return (0); 3012168404Spjd} 3013168404Spjd 3014168404Spjd/* 3015185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 3016185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 3017185029Spjd * closest existing ancestor for the given path. In prefixlen return the 3018185029Spjd * length of already existing prefix of the given path. We also fetch the 3019185029Spjd * 'zoned' property, which is used to validate property settings when creating 3020185029Spjd * new datasets. 3021168404Spjd */ 3022168404Spjdstatic int 3023185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 3024185029Spjd boolean_t accept_ancestor, int *prefixlen) 3025168404Spjd{ 3026168404Spjd zfs_cmd_t zc = { 0 }; 3027168404Spjd char parent[ZFS_MAXNAMELEN]; 3028168404Spjd char *slash; 3029168404Spjd zfs_handle_t *zhp; 3030168404Spjd char errbuf[1024]; 3031219089Spjd uint64_t is_zoned; 3032168404Spjd 3033209962Smm (void) snprintf(errbuf, sizeof (errbuf), 3034209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 3035168404Spjd 3036168404Spjd /* get parent, and check to see if this is just a pool */ 3037168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 3038168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3039168404Spjd "missing dataset name")); 3040168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3041168404Spjd } 3042168404Spjd 3043168404Spjd /* check to see if the pool exists */ 3044168404Spjd if ((slash = strchr(parent, '/')) == NULL) 3045168404Spjd slash = parent + strlen(parent); 3046168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 3047168404Spjd zc.zc_name[slash - parent] = '\0'; 3048168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 3049168404Spjd errno == ENOENT) { 3050168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3051168404Spjd "no such pool '%s'"), zc.zc_name); 3052168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3053168404Spjd } 3054168404Spjd 3055168404Spjd /* check to see if the parent dataset exists */ 3056185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 3057185029Spjd if (errno == ENOENT && accept_ancestor) { 3058185029Spjd /* 3059185029Spjd * Go deeper to find an ancestor, give up on top level. 3060185029Spjd */ 3061185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 3062185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3063185029Spjd "no such pool '%s'"), zc.zc_name); 3064185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3065185029Spjd } 3066185029Spjd } else if (errno == ENOENT) { 3067168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3068168404Spjd "parent does not exist")); 3069168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3070185029Spjd } else 3071168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3072168404Spjd } 3073168404Spjd 3074219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 3075219089Spjd if (zoned != NULL) 3076219089Spjd *zoned = is_zoned; 3077219089Spjd 3078168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 3079219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 3080168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 3081168404Spjd zfs_close(zhp); 3082168404Spjd return (-1); 3083168404Spjd } 3084168404Spjd 3085168404Spjd /* make sure parent is a filesystem */ 3086168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3087168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3088168404Spjd "parent is not a filesystem")); 3089168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3090168404Spjd zfs_close(zhp); 3091168404Spjd return (-1); 3092168404Spjd } 3093168404Spjd 3094168404Spjd zfs_close(zhp); 3095185029Spjd if (prefixlen != NULL) 3096185029Spjd *prefixlen = strlen(parent); 3097168404Spjd return (0); 3098168404Spjd} 3099168404Spjd 3100168404Spjd/* 3101185029Spjd * Finds whether the dataset of the given type(s) exists. 3102185029Spjd */ 3103185029Spjdboolean_t 3104185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3105185029Spjd{ 3106185029Spjd zfs_handle_t *zhp; 3107185029Spjd 3108185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3109185029Spjd return (B_FALSE); 3110185029Spjd 3111185029Spjd /* 3112185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3113185029Spjd */ 3114185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3115185029Spjd int ds_type = zhp->zfs_type; 3116185029Spjd 3117185029Spjd zfs_close(zhp); 3118185029Spjd if (types & ds_type) 3119185029Spjd return (B_TRUE); 3120185029Spjd } 3121185029Spjd return (B_FALSE); 3122185029Spjd} 3123185029Spjd 3124185029Spjd/* 3125185029Spjd * Given a path to 'target', create all the ancestors between 3126185029Spjd * the prefixlen portion of the path, and the target itself. 3127185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3128185029Spjd */ 3129185029Spjdint 3130185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3131185029Spjd{ 3132185029Spjd zfs_handle_t *h; 3133185029Spjd char *cp; 3134185029Spjd const char *opname; 3135185029Spjd 3136185029Spjd /* make sure prefix exists */ 3137185029Spjd cp = target + prefixlen; 3138185029Spjd if (*cp != '/') { 3139185029Spjd assert(strchr(cp, '/') == NULL); 3140185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3141185029Spjd } else { 3142185029Spjd *cp = '\0'; 3143185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3144185029Spjd *cp = '/'; 3145185029Spjd } 3146185029Spjd if (h == NULL) 3147185029Spjd return (-1); 3148185029Spjd zfs_close(h); 3149185029Spjd 3150185029Spjd /* 3151185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3152185029Spjd * up to the prefixlen-long one. 3153185029Spjd */ 3154185029Spjd for (cp = target + prefixlen + 1; 3155185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 3156185029Spjd 3157185029Spjd *cp = '\0'; 3158185029Spjd 3159185029Spjd h = make_dataset_handle(hdl, target); 3160185029Spjd if (h) { 3161185029Spjd /* it already exists, nothing to do here */ 3162185029Spjd zfs_close(h); 3163185029Spjd continue; 3164185029Spjd } 3165185029Spjd 3166185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3167185029Spjd NULL) != 0) { 3168185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3169185029Spjd goto ancestorerr; 3170185029Spjd } 3171185029Spjd 3172185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3173185029Spjd if (h == NULL) { 3174185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3175185029Spjd goto ancestorerr; 3176185029Spjd } 3177185029Spjd 3178185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3179185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3180185029Spjd goto ancestorerr; 3181185029Spjd } 3182185029Spjd 3183185029Spjd if (zfs_share(h) != 0) { 3184185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3185185029Spjd goto ancestorerr; 3186185029Spjd } 3187185029Spjd 3188185029Spjd zfs_close(h); 3189185029Spjd } 3190185029Spjd 3191185029Spjd return (0); 3192185029Spjd 3193185029Spjdancestorerr: 3194185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3195185029Spjd "failed to %s ancestor '%s'"), opname, target); 3196185029Spjd return (-1); 3197185029Spjd} 3198185029Spjd 3199185029Spjd/* 3200185029Spjd * Creates non-existing ancestors of the given path. 3201185029Spjd */ 3202185029Spjdint 3203185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3204185029Spjd{ 3205185029Spjd int prefix; 3206185029Spjd char *path_copy; 3207185029Spjd int rc; 3208185029Spjd 3209219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3210185029Spjd return (-1); 3211185029Spjd 3212185029Spjd if ((path_copy = strdup(path)) != NULL) { 3213185029Spjd rc = create_parents(hdl, path_copy, prefix); 3214185029Spjd free(path_copy); 3215185029Spjd } 3216185029Spjd if (path_copy == NULL || rc != 0) 3217185029Spjd return (-1); 3218185029Spjd 3219185029Spjd return (0); 3220185029Spjd} 3221185029Spjd 3222185029Spjd/* 3223168404Spjd * Create a new filesystem or volume. 3224168404Spjd */ 3225168404Spjdint 3226168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3227168404Spjd nvlist_t *props) 3228168404Spjd{ 3229168404Spjd int ret; 3230168404Spjd uint64_t size = 0; 3231168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3232168404Spjd char errbuf[1024]; 3233168404Spjd uint64_t zoned; 3234298472Savg enum lzc_dataset_type ost; 3235168404Spjd 3236168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3237168404Spjd "cannot create '%s'"), path); 3238168404Spjd 3239168404Spjd /* validate the path, taking care to note the extended error message */ 3240185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3241168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3242168404Spjd 3243168404Spjd /* validate parents exist */ 3244185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3245168404Spjd return (-1); 3246168404Spjd 3247168404Spjd /* 3248168404Spjd * The failure modes when creating a dataset of a different type over 3249168404Spjd * one that already exists is a little strange. In particular, if you 3250168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3251168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3252168404Spjd * first try to see if the dataset exists. 3253168404Spjd */ 3254248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3255168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3256168404Spjd "dataset already exists")); 3257168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3258168404Spjd } 3259168404Spjd 3260168404Spjd if (type == ZFS_TYPE_VOLUME) 3261298472Savg ost = LZC_DATSET_TYPE_ZVOL; 3262168404Spjd else 3263298472Savg ost = LZC_DATSET_TYPE_ZFS; 3264168404Spjd 3265289500Smav /* open zpool handle for prop validation */ 3266289500Smav char pool_path[MAXNAMELEN]; 3267289500Smav (void) strlcpy(pool_path, path, sizeof (pool_path)); 3268289500Smav 3269289500Smav /* truncate pool_path at first slash */ 3270289500Smav char *p = strchr(pool_path, '/'); 3271289500Smav if (p != NULL) 3272289500Smav *p = '\0'; 3273289500Smav 3274289500Smav zpool_handle_t *zpool_handle = zpool_open(hdl, pool_path); 3275289500Smav 3276185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3277289500Smav zoned, NULL, zpool_handle, errbuf)) == 0) { 3278289500Smav zpool_close(zpool_handle); 3279168404Spjd return (-1); 3280289500Smav } 3281289500Smav zpool_close(zpool_handle); 3282168404Spjd 3283168404Spjd if (type == ZFS_TYPE_VOLUME) { 3284168404Spjd /* 3285168404Spjd * If we are creating a volume, the size and block size must 3286168404Spjd * satisfy a few restraints. First, the blocksize must be a 3287168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3288168404Spjd * volsize must be a multiple of the block size, and cannot be 3289168404Spjd * zero. 3290168404Spjd */ 3291168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3292168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3293168404Spjd nvlist_free(props); 3294168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3295168404Spjd "missing volume size")); 3296168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3297168404Spjd } 3298168404Spjd 3299168404Spjd if ((ret = nvlist_lookup_uint64(props, 3300168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3301168404Spjd &blocksize)) != 0) { 3302168404Spjd if (ret == ENOENT) { 3303168404Spjd blocksize = zfs_prop_default_numeric( 3304168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3305168404Spjd } else { 3306168404Spjd nvlist_free(props); 3307168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3308168404Spjd "missing volume block size")); 3309168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3310168404Spjd } 3311168404Spjd } 3312168404Spjd 3313168404Spjd if (size == 0) { 3314168404Spjd nvlist_free(props); 3315168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3316168404Spjd "volume size cannot be zero")); 3317168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3318168404Spjd } 3319168404Spjd 3320168404Spjd if (size % blocksize != 0) { 3321168404Spjd nvlist_free(props); 3322168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3323168404Spjd "volume size must be a multiple of volume block " 3324168404Spjd "size")); 3325168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3326168404Spjd } 3327168404Spjd } 3328168404Spjd 3329248571Smm /* create the dataset */ 3330248571Smm ret = lzc_create(path, ost, props); 3331168404Spjd nvlist_free(props); 3332168404Spjd 3333168404Spjd /* check for failure */ 3334168404Spjd if (ret != 0) { 3335168404Spjd char parent[ZFS_MAXNAMELEN]; 3336168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3337168404Spjd 3338168404Spjd switch (errno) { 3339168404Spjd case ENOENT: 3340168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3341168404Spjd "no such parent '%s'"), parent); 3342168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3343168404Spjd 3344168404Spjd case EINVAL: 3345168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3346168404Spjd "parent '%s' is not a filesystem"), parent); 3347168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3348168404Spjd 3349185029Spjd case ENOTSUP: 3350185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3351185029Spjd "pool must be upgraded to set this " 3352185029Spjd "property or value")); 3353185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3354168404Spjd#ifdef _ILP32 3355168404Spjd case EOVERFLOW: 3356168404Spjd /* 3357168404Spjd * This platform can't address a volume this big. 3358168404Spjd */ 3359168404Spjd if (type == ZFS_TYPE_VOLUME) 3360168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3361168404Spjd errbuf)); 3362168404Spjd#endif 3363168404Spjd /* FALLTHROUGH */ 3364168404Spjd default: 3365168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3366168404Spjd } 3367168404Spjd } 3368168404Spjd 3369168404Spjd return (0); 3370168404Spjd} 3371168404Spjd 3372168404Spjd/* 3373168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3374238422Smm * isn't mounted, and that there are no active dependents. If the file system 3375238422Smm * does not exist this function does nothing. 3376168404Spjd */ 3377168404Spjdint 3378219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3379168404Spjd{ 3380168404Spjd zfs_cmd_t zc = { 0 }; 3381168404Spjd 3382260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3383260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3384260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3385260183Sdelphij int error = lzc_destroy_bookmarks(nv, NULL); 3386260183Sdelphij fnvlist_free(nv); 3387260183Sdelphij if (error != 0) { 3388260183Sdelphij return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3389260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3390260183Sdelphij zhp->zfs_name)); 3391260183Sdelphij } 3392260183Sdelphij return (0); 3393260183Sdelphij } 3394260183Sdelphij 3395168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3396168404Spjd 3397168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3398168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3399168404Spjd } else { 3400168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3401168404Spjd } 3402168404Spjd 3403219089Spjd zc.zc_defer_destroy = defer; 3404238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3405238422Smm errno != ENOENT) { 3406168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3407168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3408168404Spjd zhp->zfs_name)); 3409168404Spjd } 3410168404Spjd 3411168404Spjd remove_mountpoint(zhp); 3412168404Spjd 3413168404Spjd return (0); 3414168404Spjd} 3415168404Spjd 3416168404Spjdstruct destroydata { 3417228103Smm nvlist_t *nvl; 3418228103Smm const char *snapname; 3419168404Spjd}; 3420168404Spjd 3421168404Spjdstatic int 3422219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3423168404Spjd{ 3424168404Spjd struct destroydata *dd = arg; 3425168404Spjd char name[ZFS_MAXNAMELEN]; 3426219089Spjd int rv = 0; 3427168404Spjd 3428228103Smm (void) snprintf(name, sizeof (name), 3429228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3430168404Spjd 3431251646Sdelphij if (lzc_exists(name)) 3432228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3433168404Spjd 3434228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3435228103Smm zfs_close(zhp); 3436168404Spjd return (rv); 3437168404Spjd} 3438168404Spjd 3439168404Spjd/* 3440168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3441168404Spjd */ 3442168404Spjdint 3443219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3444168404Spjd{ 3445168404Spjd int ret; 3446168404Spjd struct destroydata dd = { 0 }; 3447168404Spjd 3448168404Spjd dd.snapname = snapname; 3449228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3450228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3451168404Spjd 3452251646Sdelphij if (nvlist_empty(dd.nvl)) { 3453228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3454168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3455228103Smm zhp->zfs_name, snapname); 3456228103Smm } else { 3457248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3458168404Spjd } 3459228103Smm nvlist_free(dd.nvl); 3460228103Smm return (ret); 3461228103Smm} 3462168404Spjd 3463228103Smm/* 3464248571Smm * Destroys all the snapshots named in the nvlist. 3465228103Smm */ 3466228103Smmint 3467248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3468228103Smm{ 3469228103Smm int ret; 3470248571Smm nvlist_t *errlist; 3471228103Smm 3472248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3473168404Spjd 3474248571Smm if (ret == 0) 3475248571Smm return (0); 3476248571Smm 3477251646Sdelphij if (nvlist_empty(errlist)) { 3478168404Spjd char errbuf[1024]; 3479248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3480248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3481168404Spjd 3482248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3483248571Smm } 3484248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3485248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3486248571Smm char errbuf[1024]; 3487248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3488248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3489248571Smm nvpair_name(pair)); 3490168404Spjd 3491248571Smm switch (fnvpair_value_int32(pair)) { 3492168404Spjd case EEXIST: 3493248571Smm zfs_error_aux(hdl, 3494248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3495248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3496248571Smm break; 3497168404Spjd default: 3498248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3499248571Smm break; 3500168404Spjd } 3501168404Spjd } 3502168404Spjd 3503248571Smm return (ret); 3504168404Spjd} 3505168404Spjd 3506168404Spjd/* 3507168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3508168404Spjd */ 3509168404Spjdint 3510168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3511168404Spjd{ 3512168404Spjd char parent[ZFS_MAXNAMELEN]; 3513168404Spjd int ret; 3514168404Spjd char errbuf[1024]; 3515168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3516168404Spjd uint64_t zoned; 3517168404Spjd 3518168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3519168404Spjd 3520168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3521168404Spjd "cannot create '%s'"), target); 3522168404Spjd 3523228103Smm /* validate the target/clone name */ 3524185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3525168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3526168404Spjd 3527168404Spjd /* validate parents exist */ 3528185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3529168404Spjd return (-1); 3530168404Spjd 3531168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3532168404Spjd 3533168404Spjd /* do the clone */ 3534168404Spjd 3535168404Spjd if (props) { 3536248571Smm zfs_type_t type; 3537248571Smm if (ZFS_IS_VOLUME(zhp)) { 3538248571Smm type = ZFS_TYPE_VOLUME; 3539248571Smm } else { 3540248571Smm type = ZFS_TYPE_FILESYSTEM; 3541248571Smm } 3542185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3543289500Smav zhp, zhp->zpool_hdl, errbuf)) == NULL) 3544168404Spjd return (-1); 3545168404Spjd } 3546168404Spjd 3547248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3548248571Smm nvlist_free(props); 3549168404Spjd 3550168404Spjd if (ret != 0) { 3551168404Spjd switch (errno) { 3552168404Spjd 3553168404Spjd case ENOENT: 3554168404Spjd /* 3555168404Spjd * The parent doesn't exist. We should have caught this 3556168404Spjd * above, but there may a race condition that has since 3557168404Spjd * destroyed the parent. 3558168404Spjd * 3559168404Spjd * At this point, we don't know whether it's the source 3560168404Spjd * that doesn't exist anymore, or whether the target 3561168404Spjd * dataset doesn't exist. 3562168404Spjd */ 3563168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3564168404Spjd "no such parent '%s'"), parent); 3565168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3566168404Spjd 3567168404Spjd case EXDEV: 3568168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3569168404Spjd "source and target pools differ")); 3570168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3571168404Spjd errbuf)); 3572168404Spjd 3573168404Spjd default: 3574168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3575168404Spjd errbuf)); 3576168404Spjd } 3577168404Spjd } 3578168404Spjd 3579168404Spjd return (ret); 3580168404Spjd} 3581168404Spjd 3582168404Spjd/* 3583168404Spjd * Promotes the given clone fs to be the clone parent. 3584168404Spjd */ 3585168404Spjdint 3586168404Spjdzfs_promote(zfs_handle_t *zhp) 3587168404Spjd{ 3588168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3589168404Spjd zfs_cmd_t zc = { 0 }; 3590168404Spjd char parent[MAXPATHLEN]; 3591168404Spjd int ret; 3592168404Spjd char errbuf[1024]; 3593168404Spjd 3594168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3595168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3596168404Spjd 3597168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3598168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3599168404Spjd "snapshots can not be promoted")); 3600168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3601168404Spjd } 3602168404Spjd 3603185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3604168404Spjd if (parent[0] == '\0') { 3605168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3606168404Spjd "not a cloned filesystem")); 3607168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3608168404Spjd } 3609168404Spjd 3610185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3611168404Spjd sizeof (zc.zc_value)); 3612168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3613185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3614168404Spjd 3615168404Spjd if (ret != 0) { 3616168404Spjd int save_errno = errno; 3617168404Spjd 3618168404Spjd switch (save_errno) { 3619168404Spjd case EEXIST: 3620219089Spjd /* There is a conflicting snapshot name. */ 3621168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3622219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3623219089Spjd zc.zc_string, parent); 3624168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3625168404Spjd 3626168404Spjd default: 3627168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3628168404Spjd } 3629168404Spjd } 3630168404Spjd return (ret); 3631168404Spjd} 3632168404Spjd 3633248571Smmtypedef struct snapdata { 3634248571Smm nvlist_t *sd_nvl; 3635248571Smm const char *sd_snapname; 3636248571Smm} snapdata_t; 3637248571Smm 3638248571Smmstatic int 3639248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3640248571Smm{ 3641248571Smm snapdata_t *sd = arg; 3642248571Smm char name[ZFS_MAXNAMELEN]; 3643248571Smm int rv = 0; 3644248571Smm 3645253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3646253819Sdelphij (void) snprintf(name, sizeof (name), 3647253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3648248571Smm 3649253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3650248571Smm 3651253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3652253819Sdelphij } 3653248571Smm zfs_close(zhp); 3654253819Sdelphij 3655248571Smm return (rv); 3656248571Smm} 3657248571Smm 3658168404Spjd/* 3659248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3660248571Smm * created. 3661168404Spjd */ 3662168404Spjdint 3663248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3664168404Spjd{ 3665168404Spjd int ret; 3666168404Spjd char errbuf[1024]; 3667248571Smm nvpair_t *elem; 3668248571Smm nvlist_t *errors; 3669168404Spjd 3670168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3671248571Smm "cannot create snapshots ")); 3672168404Spjd 3673248571Smm elem = NULL; 3674248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3675248571Smm const char *snapname = nvpair_name(elem); 3676168404Spjd 3677248571Smm /* validate the target name */ 3678248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3679248571Smm B_TRUE)) { 3680248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3681248571Smm dgettext(TEXT_DOMAIN, 3682248571Smm "cannot create snapshot '%s'"), snapname); 3683248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3684248571Smm } 3685248571Smm } 3686185029Spjd 3687289500Smav /* 3688289500Smav * get pool handle for prop validation. assumes all snaps are in the 3689289500Smav * same pool, as does lzc_snapshot (below). 3690289500Smav */ 3691289500Smav char pool[MAXNAMELEN]; 3692289500Smav elem = nvlist_next_nvpair(snaps, NULL); 3693289500Smav (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); 3694289500Smav pool[strcspn(pool, "/@")] = '\0'; 3695289500Smav zpool_handle_t *zpool_hdl = zpool_open(hdl, pool); 3696289500Smav 3697248571Smm if (props != NULL && 3698248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3699289500Smav props, B_FALSE, NULL, zpool_hdl, errbuf)) == NULL) { 3700289500Smav zpool_close(zpool_hdl); 3701248571Smm return (-1); 3702248571Smm } 3703289500Smav zpool_close(zpool_hdl); 3704248571Smm 3705248571Smm ret = lzc_snapshot(snaps, props, &errors); 3706248571Smm 3707248571Smm if (ret != 0) { 3708248571Smm boolean_t printed = B_FALSE; 3709248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3710248571Smm elem != NULL; 3711248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3712248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3713248571Smm dgettext(TEXT_DOMAIN, 3714248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3715248571Smm (void) zfs_standard_error(hdl, 3716248571Smm fnvpair_value_int32(elem), errbuf); 3717248571Smm printed = B_TRUE; 3718185029Spjd } 3719248571Smm if (!printed) { 3720248571Smm switch (ret) { 3721248571Smm case EXDEV: 3722248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3723248571Smm "multiple snapshots of same " 3724248571Smm "fs not allowed")); 3725248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3726185029Spjd 3727248571Smm break; 3728248571Smm default: 3729248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3730248571Smm } 3731248571Smm } 3732185029Spjd } 3733185029Spjd 3734248571Smm nvlist_free(props); 3735248571Smm nvlist_free(errors); 3736248571Smm return (ret); 3737248571Smm} 3738168404Spjd 3739248571Smmint 3740248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3741248571Smm nvlist_t *props) 3742248571Smm{ 3743248571Smm int ret; 3744248571Smm snapdata_t sd = { 0 }; 3745248571Smm char fsname[ZFS_MAXNAMELEN]; 3746248571Smm char *cp; 3747248571Smm zfs_handle_t *zhp; 3748248571Smm char errbuf[1024]; 3749248571Smm 3750248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3751248571Smm "cannot snapshot %s"), path); 3752248571Smm 3753248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3754248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3755248571Smm 3756248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3757248571Smm cp = strchr(fsname, '@'); 3758248571Smm *cp = '\0'; 3759248571Smm sd.sd_snapname = cp + 1; 3760248571Smm 3761248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3762168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3763168404Spjd return (-1); 3764168404Spjd } 3765168404Spjd 3766248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3767248571Smm if (recursive) { 3768248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3769248571Smm } else { 3770248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3771168404Spjd } 3772168404Spjd 3773248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3774248571Smm nvlist_free(sd.sd_nvl); 3775168404Spjd zfs_close(zhp); 3776168404Spjd return (ret); 3777168404Spjd} 3778168404Spjd 3779168404Spjd/* 3780168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3781168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3782168404Spjd * is a dependent and we should just destroy it without checking the transaction 3783168404Spjd * group. 3784168404Spjd */ 3785168404Spjdtypedef struct rollback_data { 3786168404Spjd const char *cb_target; /* the snapshot */ 3787168404Spjd uint64_t cb_create; /* creation time reference */ 3788185029Spjd boolean_t cb_error; 3789185029Spjd boolean_t cb_force; 3790168404Spjd} rollback_data_t; 3791168404Spjd 3792168404Spjdstatic int 3793260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 3794168404Spjd{ 3795168404Spjd rollback_data_t *cbp = data; 3796260183Sdelphij prop_changelist_t *clp; 3797168404Spjd 3798260183Sdelphij /* We must destroy this clone; first unmount it */ 3799260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3800260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 3801260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 3802260183Sdelphij cbp->cb_error = B_TRUE; 3803260183Sdelphij zfs_close(zhp); 3804260183Sdelphij return (0); 3805260183Sdelphij } 3806260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 3807260183Sdelphij cbp->cb_error = B_TRUE; 3808260183Sdelphij else 3809260183Sdelphij changelist_remove(clp, zhp->zfs_name); 3810260183Sdelphij (void) changelist_postfix(clp); 3811260183Sdelphij changelist_free(clp); 3812168404Spjd 3813260183Sdelphij zfs_close(zhp); 3814260183Sdelphij return (0); 3815260183Sdelphij} 3816168404Spjd 3817260183Sdelphijstatic int 3818260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 3819260183Sdelphij{ 3820260183Sdelphij rollback_data_t *cbp = data; 3821185029Spjd 3822260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3823260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3824260183Sdelphij rollback_destroy_dependent, cbp); 3825260183Sdelphij 3826260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3827168404Spjd } 3828168404Spjd 3829168404Spjd zfs_close(zhp); 3830168404Spjd return (0); 3831168404Spjd} 3832168404Spjd 3833168404Spjd/* 3834168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3835168404Spjd * data changes since then and making it the active dataset. 3836168404Spjd * 3837260183Sdelphij * Any snapshots and bookmarks more recent than the target are 3838260183Sdelphij * destroyed, along with their dependents (i.e. clones). 3839168404Spjd */ 3840168404Spjdint 3841185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3842168404Spjd{ 3843168404Spjd rollback_data_t cb = { 0 }; 3844185029Spjd int err; 3845185029Spjd boolean_t restore_resv = 0; 3846185029Spjd uint64_t old_volsize, new_volsize; 3847185029Spjd zfs_prop_t resv_prop; 3848168404Spjd 3849185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3850185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3851168404Spjd 3852168404Spjd /* 3853239774Smm * Destroy all recent snapshots and their dependents. 3854168404Spjd */ 3855185029Spjd cb.cb_force = force; 3856168404Spjd cb.cb_target = snap->zfs_name; 3857168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3858260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 3859260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 3860168404Spjd 3861185029Spjd if (cb.cb_error) 3862185029Spjd return (-1); 3863168404Spjd 3864168404Spjd /* 3865168404Spjd * Now that we have verified that the snapshot is the latest, 3866168404Spjd * rollback to the given snapshot. 3867168404Spjd */ 3868168404Spjd 3869185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3870185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3871185029Spjd return (-1); 3872185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3873185029Spjd restore_resv = 3874185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3875168404Spjd } 3876168404Spjd 3877168404Spjd /* 3878185029Spjd * We rely on zfs_iter_children() to verify that there are no 3879185029Spjd * newer snapshots for the given dataset. Therefore, we can 3880185029Spjd * simply pass the name on to the ioctl() call. There is still 3881185029Spjd * an unlikely race condition where the user has taken a 3882185029Spjd * snapshot since we verified that this was the most recent. 3883168404Spjd */ 3884254587Sdelphij err = lzc_rollback(zhp->zfs_name, NULL, 0); 3885254587Sdelphij if (err != 0) { 3886185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3887185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3888185029Spjd zhp->zfs_name); 3889185029Spjd return (err); 3890185029Spjd } 3891168404Spjd 3892185029Spjd /* 3893185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3894185029Spjd * rollback reservation and the volsize has changed then set 3895185029Spjd * the reservation property to the post-rollback volsize. 3896185029Spjd * Make a new handle since the rollback closed the dataset. 3897185029Spjd */ 3898185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3899185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3900185029Spjd if (restore_resv) { 3901185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3902185029Spjd if (old_volsize != new_volsize) 3903185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3904185029Spjd new_volsize); 3905185029Spjd } 3906185029Spjd zfs_close(zhp); 3907185029Spjd } 3908185029Spjd return (err); 3909168404Spjd} 3910168404Spjd 3911168404Spjd/* 3912168404Spjd * Renames the given dataset. 3913168404Spjd */ 3914168404Spjdint 3915240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3916240870Spjd renameflags_t flags) 3917168404Spjd{ 3918168404Spjd int ret; 3919168404Spjd zfs_cmd_t zc = { 0 }; 3920168404Spjd char *delim; 3921168676Spjd prop_changelist_t *cl = NULL; 3922168676Spjd zfs_handle_t *zhrp = NULL; 3923168676Spjd char *parentname = NULL; 3924168404Spjd char parent[ZFS_MAXNAMELEN]; 3925226676Spjd char property[ZFS_MAXPROPLEN]; 3926168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3927168404Spjd char errbuf[1024]; 3928168404Spjd 3929168404Spjd /* if we have the same exact name, just return success */ 3930168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3931168404Spjd return (0); 3932168404Spjd 3933168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3934168404Spjd "cannot rename to '%s'"), target); 3935168404Spjd 3936240870Spjd if (source != NULL) { 3937240870Spjd /* 3938240870Spjd * This is recursive snapshots rename, put snapshot name 3939240870Spjd * (that might not exist) into zfs_name. 3940240870Spjd */ 3941240870Spjd assert(flags.recurse); 3942240870Spjd 3943240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3944240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3945240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3946240870Spjd } 3947240870Spjd 3948168404Spjd /* 3949168404Spjd * Make sure the target name is valid 3950168404Spjd */ 3951168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3952168404Spjd if ((strchr(target, '@') == NULL) || 3953168404Spjd *target == '@') { 3954168404Spjd /* 3955168404Spjd * Snapshot target name is abbreviated, 3956168404Spjd * reconstruct full dataset name 3957168404Spjd */ 3958168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3959168404Spjd sizeof (parent)); 3960168404Spjd delim = strchr(parent, '@'); 3961168404Spjd if (strchr(target, '@') == NULL) 3962168404Spjd *(++delim) = '\0'; 3963168404Spjd else 3964168404Spjd *delim = '\0'; 3965168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3966168404Spjd target = parent; 3967168404Spjd } else { 3968168404Spjd /* 3969168404Spjd * Make sure we're renaming within the same dataset. 3970168404Spjd */ 3971168404Spjd delim = strchr(target, '@'); 3972168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3973168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3974168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3975168404Spjd "snapshots must be part of same " 3976168404Spjd "dataset")); 3977168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3978168404Spjd errbuf)); 3979168404Spjd } 3980168404Spjd } 3981185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3982168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3983168404Spjd } else { 3984226705Spjd if (flags.recurse) { 3985168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3986168676Spjd "recursive rename must be a snapshot")); 3987168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3988168676Spjd } 3989168676Spjd 3990185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3991168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3992168404Spjd 3993168404Spjd /* validate parents */ 3994219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3995168404Spjd return (-1); 3996168404Spjd 3997168404Spjd /* make sure we're in the same pool */ 3998168404Spjd verify((delim = strchr(target, '/')) != NULL); 3999168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 4000168404Spjd zhp->zfs_name[delim - target] != '/') { 4001168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4002168404Spjd "datasets must be within same pool")); 4003168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 4004168404Spjd } 4005168404Spjd 4006168404Spjd /* new name cannot be a child of the current dataset name */ 4007219089Spjd if (is_descendant(zhp->zfs_name, target)) { 4008168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4009219089Spjd "New dataset name cannot be a descendant of " 4010168404Spjd "current dataset name")); 4011168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4012168404Spjd } 4013168404Spjd } 4014168404Spjd 4015168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4016168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 4017168404Spjd 4018168404Spjd if (getzoneid() == GLOBAL_ZONEID && 4019168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 4020168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4021168404Spjd "dataset is used in a non-global zone")); 4022168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 4023168404Spjd } 4024168404Spjd 4025226705Spjd /* 4026226705Spjd * Avoid unmounting file systems with mountpoint property set to 4027226705Spjd * 'legacy' or 'none' even if -u option is not given. 4028226705Spjd */ 4029226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 4030226705Spjd !flags.recurse && !flags.nounmount && 4031226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 4032226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 4033226705Spjd (strcmp(property, "legacy") == 0 || 4034226705Spjd strcmp(property, "none") == 0)) { 4035226705Spjd flags.nounmount = B_TRUE; 4036226705Spjd } 4037226705Spjd if (flags.recurse) { 4038226705Spjd 4039185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 4040185029Spjd if (parentname == NULL) { 4041185029Spjd ret = -1; 4042185029Spjd goto error; 4043185029Spjd } 4044168676Spjd delim = strchr(parentname, '@'); 4045168676Spjd *delim = '\0'; 4046185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 4047168676Spjd if (zhrp == NULL) { 4048185029Spjd ret = -1; 4049185029Spjd goto error; 4050168676Spjd } 4051268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 4052226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 4053235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 4054235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 4055168676Spjd return (-1); 4056226676Spjd } 4057168676Spjd 4058168676Spjd if (changelist_haszonedchild(cl)) { 4059168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4060168676Spjd "child dataset with inherited mountpoint is used " 4061168676Spjd "in a non-global zone")); 4062168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 4063168676Spjd goto error; 4064168676Spjd } 4065168676Spjd 4066168676Spjd if ((ret = changelist_prefix(cl)) != 0) 4067168676Spjd goto error; 4068168404Spjd } 4069168404Spjd 4070168404Spjd if (ZFS_IS_VOLUME(zhp)) 4071168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 4072168404Spjd else 4073168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4074168404Spjd 4075168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4076168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 4077168404Spjd 4078226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 4079226705Spjd if (flags.nounmount) 4080226676Spjd zc.zc_cookie |= 2; 4081168676Spjd 4082185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 4083168676Spjd /* 4084168676Spjd * if it was recursive, the one that actually failed will 4085168676Spjd * be in zc.zc_name 4086168676Spjd */ 4087168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4088185029Spjd "cannot rename '%s'"), zc.zc_name); 4089168404Spjd 4090226705Spjd if (flags.recurse && errno == EEXIST) { 4091168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4092168676Spjd "a child dataset already has a snapshot " 4093168676Spjd "with the new name")); 4094185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4095168676Spjd } else { 4096168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 4097168676Spjd } 4098168676Spjd 4099168404Spjd /* 4100168404Spjd * On failure, we still want to remount any filesystems that 4101168404Spjd * were previously mounted, so we don't alter the system state. 4102168404Spjd */ 4103268469Sdelphij if (cl != NULL) 4104168676Spjd (void) changelist_postfix(cl); 4105168404Spjd } else { 4106268469Sdelphij if (cl != NULL) { 4107168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 4108168676Spjd ret = changelist_postfix(cl); 4109168676Spjd } 4110168404Spjd } 4111168404Spjd 4112168404Spjderror: 4113268469Sdelphij if (parentname != NULL) { 4114168676Spjd free(parentname); 4115168676Spjd } 4116268469Sdelphij if (zhrp != NULL) { 4117168676Spjd zfs_close(zhrp); 4118168676Spjd } 4119268469Sdelphij if (cl != NULL) { 4120168676Spjd changelist_free(cl); 4121168676Spjd } 4122168404Spjd return (ret); 4123168404Spjd} 4124168404Spjd 4125219089Spjdnvlist_t * 4126219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4127168404Spjd{ 4128219089Spjd return (zhp->zfs_user_props); 4129168676Spjd} 4130168676Spjd 4131168404Spjdnvlist_t * 4132219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4133168404Spjd{ 4134219089Spjd if (zhp->zfs_recvd_props == NULL) 4135219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4136219089Spjd return (NULL); 4137219089Spjd return (zhp->zfs_recvd_props); 4138168404Spjd} 4139168404Spjd 4140168404Spjd/* 4141168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4142168404Spjd * display, and their maximum widths. This does two main things: 4143168404Spjd * 4144168404Spjd * - If this is a list of all properties, then expand the list to include 4145168404Spjd * all native properties, and set a flag so that for each dataset we look 4146168404Spjd * for new unique user properties and add them to the list. 4147168404Spjd * 4148168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4149219089Spjd * so that we can size the column appropriately. If the user has 4150219089Spjd * requested received property values, we also need to compute the width 4151219089Spjd * of the RECEIVED column. 4152168404Spjd */ 4153168404Spjdint 4154259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4155259850Sdelphij boolean_t literal) 4156168404Spjd{ 4157168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4158185029Spjd zprop_list_t *entry; 4159185029Spjd zprop_list_t **last, **start; 4160168404Spjd nvlist_t *userprops, *propval; 4161168404Spjd nvpair_t *elem; 4162168404Spjd char *strval; 4163168404Spjd char buf[ZFS_MAXPROPLEN]; 4164168404Spjd 4165185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4166168404Spjd return (-1); 4167168404Spjd 4168168404Spjd userprops = zfs_get_user_props(zhp); 4169168404Spjd 4170168404Spjd entry = *plp; 4171168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4172168404Spjd /* 4173168404Spjd * Go through and add any user properties as necessary. We 4174168404Spjd * start by incrementing our list pointer to the first 4175168404Spjd * non-native property. 4176168404Spjd */ 4177168404Spjd start = plp; 4178168404Spjd while (*start != NULL) { 4179185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4180168404Spjd break; 4181168404Spjd start = &(*start)->pl_next; 4182168404Spjd } 4183168404Spjd 4184168404Spjd elem = NULL; 4185168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4186168404Spjd /* 4187168404Spjd * See if we've already found this property in our list. 4188168404Spjd */ 4189168404Spjd for (last = start; *last != NULL; 4190168404Spjd last = &(*last)->pl_next) { 4191168404Spjd if (strcmp((*last)->pl_user_prop, 4192168404Spjd nvpair_name(elem)) == 0) 4193168404Spjd break; 4194168404Spjd } 4195168404Spjd 4196168404Spjd if (*last == NULL) { 4197168404Spjd if ((entry = zfs_alloc(hdl, 4198185029Spjd sizeof (zprop_list_t))) == NULL || 4199168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4200168404Spjd nvpair_name(elem)))) == NULL) { 4201168404Spjd free(entry); 4202168404Spjd return (-1); 4203168404Spjd } 4204168404Spjd 4205185029Spjd entry->pl_prop = ZPROP_INVAL; 4206168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4207168404Spjd entry->pl_all = B_TRUE; 4208168404Spjd *last = entry; 4209168404Spjd } 4210168404Spjd } 4211168404Spjd } 4212168404Spjd 4213168404Spjd /* 4214168404Spjd * Now go through and check the width of any non-fixed columns 4215168404Spjd */ 4216168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4217259850Sdelphij if (entry->pl_fixed && !literal) 4218168404Spjd continue; 4219168404Spjd 4220185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4221168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4222259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4223168404Spjd if (strlen(buf) > entry->pl_width) 4224168404Spjd entry->pl_width = strlen(buf); 4225168404Spjd } 4226219089Spjd if (received && zfs_prop_get_recvd(zhp, 4227219089Spjd zfs_prop_to_name(entry->pl_prop), 4228259850Sdelphij buf, sizeof (buf), literal) == 0) 4229219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4230219089Spjd entry->pl_recvd_width = strlen(buf); 4231219089Spjd } else { 4232219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4233219089Spjd &propval) == 0) { 4234219089Spjd verify(nvlist_lookup_string(propval, 4235219089Spjd ZPROP_VALUE, &strval) == 0); 4236219089Spjd if (strlen(strval) > entry->pl_width) 4237219089Spjd entry->pl_width = strlen(strval); 4238219089Spjd } 4239219089Spjd if (received && zfs_prop_get_recvd(zhp, 4240219089Spjd entry->pl_user_prop, 4241259850Sdelphij buf, sizeof (buf), literal) == 0) 4242219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4243219089Spjd entry->pl_recvd_width = strlen(buf); 4244168404Spjd } 4245168404Spjd } 4246168404Spjd 4247168404Spjd return (0); 4248168404Spjd} 4249168404Spjd 4250185029Spjdint 4251185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4252209962Smm char *resource, void *export, void *sharetab, 4253209962Smm int sharemax, zfs_share_op_t operation) 4254185029Spjd{ 4255185029Spjd zfs_cmd_t zc = { 0 }; 4256185029Spjd int error; 4257185029Spjd 4258185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4259185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4260209962Smm if (resource) 4261209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4262185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4263185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4264185029Spjd zc.zc_share.z_sharetype = operation; 4265185029Spjd zc.zc_share.z_sharemax = sharemax; 4266185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4267185029Spjd return (error); 4268185029Spjd} 4269185029Spjd 4270205198Sdelphijvoid 4271205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4272205198Sdelphij{ 4273205198Sdelphij nvpair_t *curr; 4274205198Sdelphij 4275205198Sdelphij /* 4276205198Sdelphij * Keep a reference to the props-table against which we prune the 4277205198Sdelphij * properties. 4278205198Sdelphij */ 4279205198Sdelphij zhp->zfs_props_table = props; 4280205198Sdelphij 4281205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4282205198Sdelphij 4283205198Sdelphij while (curr) { 4284205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4285205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4286205198Sdelphij 4287206199Sdelphij /* 4288219089Spjd * User properties will result in ZPROP_INVAL, and since we 4289219089Spjd * only know how to prune standard ZFS properties, we always 4290219089Spjd * leave these in the list. This can also happen if we 4291219089Spjd * encounter an unknown DSL property (when running older 4292219089Spjd * software, for example). 4293206199Sdelphij */ 4294206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4295205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4296205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4297205198Sdelphij curr = next; 4298205198Sdelphij } 4299205198Sdelphij} 4300205198Sdelphij 4301277300Ssmh#ifdef illumos 4302209962Smmstatic int 4303209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4304209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4305209962Smm{ 4306209962Smm zfs_cmd_t zc = { 0 }; 4307209962Smm nvlist_t *nvlist = NULL; 4308209962Smm int error; 4309209962Smm 4310209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4311209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4312209962Smm zc.zc_cookie = (uint64_t)cmd; 4313209962Smm 4314209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4315209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4316209962Smm (void) no_memory(hdl); 4317289497Smav return (0); 4318209962Smm } 4319209962Smm } 4320209962Smm 4321209962Smm switch (cmd) { 4322209962Smm case ZFS_SMB_ACL_ADD: 4323209962Smm case ZFS_SMB_ACL_REMOVE: 4324209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4325209962Smm break; 4326209962Smm case ZFS_SMB_ACL_RENAME: 4327209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4328209962Smm resource1) != 0) { 4329209962Smm (void) no_memory(hdl); 4330209962Smm return (-1); 4331209962Smm } 4332209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4333209962Smm resource2) != 0) { 4334209962Smm (void) no_memory(hdl); 4335209962Smm return (-1); 4336209962Smm } 4337209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4338209962Smm nvlist_free(nvlist); 4339209962Smm return (-1); 4340209962Smm } 4341209962Smm break; 4342209962Smm case ZFS_SMB_ACL_PURGE: 4343209962Smm break; 4344209962Smm default: 4345209962Smm return (-1); 4346209962Smm } 4347209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4348296528Smav nvlist_free(nvlist); 4349209962Smm return (error); 4350209962Smm} 4351209962Smm 4352209962Smmint 4353209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4354209962Smm char *path, char *resource) 4355209962Smm{ 4356209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4357209962Smm resource, NULL)); 4358209962Smm} 4359209962Smm 4360209962Smmint 4361209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4362209962Smm char *path, char *resource) 4363209962Smm{ 4364209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4365209962Smm resource, NULL)); 4366209962Smm} 4367209962Smm 4368209962Smmint 4369209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4370209962Smm{ 4371209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4372209962Smm NULL, NULL)); 4373209962Smm} 4374209962Smm 4375209962Smmint 4376209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4377209962Smm char *oldname, char *newname) 4378209962Smm{ 4379209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4380209962Smm oldname, newname)); 4381209962Smm} 4382277300Ssmh#endif /* illumos */ 4383209962Smm 4384209962Smmint 4385209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4386209962Smm zfs_userspace_cb_t func, void *arg) 4387209962Smm{ 4388209962Smm zfs_cmd_t zc = { 0 }; 4389209962Smm zfs_useracct_t buf[100]; 4390240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4391240415Smm int ret; 4392209962Smm 4393228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4394209962Smm 4395209962Smm zc.zc_objset_type = type; 4396209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4397209962Smm 4398240415Smm for (;;) { 4399209962Smm zfs_useracct_t *zua = buf; 4400209962Smm 4401209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4402240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4403248571Smm char errbuf[1024]; 4404240415Smm 4405240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4406240415Smm dgettext(TEXT_DOMAIN, 4407240415Smm "cannot get used/quota for %s"), zc.zc_name); 4408240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4409240415Smm } 4410240415Smm if (zc.zc_nvlist_dst_size == 0) 4411209962Smm break; 4412209962Smm 4413209962Smm while (zc.zc_nvlist_dst_size > 0) { 4414240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4415240415Smm zua->zu_space)) != 0) 4416240415Smm return (ret); 4417209962Smm zua++; 4418209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4419209962Smm } 4420209962Smm } 4421209962Smm 4422240415Smm return (0); 4423209962Smm} 4424209962Smm 4425248571Smmstruct holdarg { 4426248571Smm nvlist_t *nvl; 4427248571Smm const char *snapname; 4428248571Smm const char *tag; 4429248571Smm boolean_t recursive; 4430252219Sdelphij int error; 4431248571Smm}; 4432248571Smm 4433248571Smmstatic int 4434248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4435248571Smm{ 4436248571Smm struct holdarg *ha = arg; 4437248571Smm char name[ZFS_MAXNAMELEN]; 4438248571Smm int rv = 0; 4439248571Smm 4440248571Smm (void) snprintf(name, sizeof (name), 4441248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4442248571Smm 4443251646Sdelphij if (lzc_exists(name)) 4444248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4445248571Smm 4446248571Smm if (ha->recursive) 4447248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4448248571Smm zfs_close(zhp); 4449248571Smm return (rv); 4450248571Smm} 4451248571Smm 4452219089Spjdint 4453219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4454251646Sdelphij boolean_t recursive, int cleanup_fd) 4455219089Spjd{ 4456248571Smm int ret; 4457248571Smm struct holdarg ha; 4458219089Spjd 4459248571Smm ha.nvl = fnvlist_alloc(); 4460248571Smm ha.snapname = snapname; 4461248571Smm ha.tag = tag; 4462248571Smm ha.recursive = recursive; 4463248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4464249357Smm 4465251646Sdelphij if (nvlist_empty(ha.nvl)) { 4466251646Sdelphij char errbuf[1024]; 4467251646Sdelphij 4468249357Smm fnvlist_free(ha.nvl); 4469249357Smm ret = ENOENT; 4470251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4471251646Sdelphij dgettext(TEXT_DOMAIN, 4472251646Sdelphij "cannot hold snapshot '%s@%s'"), 4473251646Sdelphij zhp->zfs_name, snapname); 4474251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4475249357Smm return (ret); 4476249357Smm } 4477249357Smm 4478251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4479248571Smm fnvlist_free(ha.nvl); 4480219089Spjd 4481251646Sdelphij return (ret); 4482251646Sdelphij} 4483251646Sdelphij 4484251646Sdelphijint 4485251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4486251646Sdelphij{ 4487251646Sdelphij int ret; 4488251646Sdelphij nvlist_t *errors; 4489251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4490251646Sdelphij char errbuf[1024]; 4491251646Sdelphij nvpair_t *elem; 4492251646Sdelphij 4493251646Sdelphij errors = NULL; 4494251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4495251646Sdelphij 4496251646Sdelphij if (ret == 0) { 4497251646Sdelphij /* There may be errors even in the success case. */ 4498251646Sdelphij fnvlist_free(errors); 4499248571Smm return (0); 4500251646Sdelphij } 4501219089Spjd 4502251646Sdelphij if (nvlist_empty(errors)) { 4503248571Smm /* no hold-specific errors */ 4504248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4505248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4506248571Smm switch (ret) { 4507248571Smm case ENOTSUP: 4508248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4509248571Smm "pool must be upgraded")); 4510248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4511248571Smm break; 4512248571Smm case EINVAL: 4513248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4514248571Smm break; 4515248571Smm default: 4516248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4517248571Smm } 4518248571Smm } 4519219089Spjd 4520248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4521248571Smm elem != NULL; 4522248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4523248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4524248571Smm dgettext(TEXT_DOMAIN, 4525248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4526248571Smm switch (fnvpair_value_int32(elem)) { 4527219089Spjd case E2BIG: 4528219089Spjd /* 4529219089Spjd * Temporary tags wind up having the ds object id 4530219089Spjd * prepended. So even if we passed the length check 4531219089Spjd * above, it's still possible for the tag to wind 4532219089Spjd * up being slightly too long. 4533219089Spjd */ 4534248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4535248571Smm break; 4536219089Spjd case EINVAL: 4537248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4538248571Smm break; 4539219089Spjd case EEXIST: 4540248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4541248571Smm break; 4542219089Spjd default: 4543248571Smm (void) zfs_standard_error(hdl, 4544248571Smm fnvpair_value_int32(elem), errbuf); 4545219089Spjd } 4546219089Spjd } 4547219089Spjd 4548248571Smm fnvlist_free(errors); 4549248571Smm return (ret); 4550219089Spjd} 4551219089Spjd 4552248571Smmstatic int 4553248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4554248571Smm{ 4555248571Smm struct holdarg *ha = arg; 4556248571Smm char name[ZFS_MAXNAMELEN]; 4557248571Smm int rv = 0; 4558252219Sdelphij nvlist_t *existing_holds; 4559248571Smm 4560248571Smm (void) snprintf(name, sizeof (name), 4561248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4562248571Smm 4563252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4564252219Sdelphij ha->error = ENOENT; 4565252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4566252219Sdelphij ha->error = ESRCH; 4567252219Sdelphij } else { 4568252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4569252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4570252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4571252219Sdelphij fnvlist_free(torelease); 4572248571Smm } 4573248571Smm 4574248571Smm if (ha->recursive) 4575248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4576248571Smm zfs_close(zhp); 4577248571Smm return (rv); 4578248571Smm} 4579248571Smm 4580219089Spjdint 4581219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4582219089Spjd boolean_t recursive) 4583219089Spjd{ 4584248571Smm int ret; 4585248571Smm struct holdarg ha; 4586251646Sdelphij nvlist_t *errors = NULL; 4587248571Smm nvpair_t *elem; 4588219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4589249357Smm char errbuf[1024]; 4590219089Spjd 4591248571Smm ha.nvl = fnvlist_alloc(); 4592248571Smm ha.snapname = snapname; 4593248571Smm ha.tag = tag; 4594248571Smm ha.recursive = recursive; 4595252219Sdelphij ha.error = 0; 4596248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4597249357Smm 4598251646Sdelphij if (nvlist_empty(ha.nvl)) { 4599249357Smm fnvlist_free(ha.nvl); 4600252219Sdelphij ret = ha.error; 4601249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4602249357Smm dgettext(TEXT_DOMAIN, 4603249357Smm "cannot release hold from snapshot '%s@%s'"), 4604249357Smm zhp->zfs_name, snapname); 4605252219Sdelphij if (ret == ESRCH) { 4606252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4607252219Sdelphij } else { 4608252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4609252219Sdelphij } 4610249357Smm return (ret); 4611249357Smm } 4612249357Smm 4613248571Smm ret = lzc_release(ha.nvl, &errors); 4614248571Smm fnvlist_free(ha.nvl); 4615219089Spjd 4616251646Sdelphij if (ret == 0) { 4617251646Sdelphij /* There may be errors even in the success case. */ 4618251646Sdelphij fnvlist_free(errors); 4619248571Smm return (0); 4620251646Sdelphij } 4621219089Spjd 4622251646Sdelphij if (nvlist_empty(errors)) { 4623248571Smm /* no hold-specific errors */ 4624219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4625248571Smm "cannot release")); 4626219089Spjd switch (errno) { 4627219089Spjd case ENOTSUP: 4628219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4629219089Spjd "pool must be upgraded")); 4630248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4631248571Smm break; 4632248571Smm default: 4633248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4634248571Smm } 4635248571Smm } 4636248571Smm 4637248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4638248571Smm elem != NULL; 4639248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4640248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4641248571Smm dgettext(TEXT_DOMAIN, 4642248571Smm "cannot release hold from snapshot '%s'"), 4643248571Smm nvpair_name(elem)); 4644248571Smm switch (fnvpair_value_int32(elem)) { 4645248571Smm case ESRCH: 4646248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4647248571Smm break; 4648219089Spjd case EINVAL: 4649248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4650248571Smm break; 4651219089Spjd default: 4652248571Smm (void) zfs_standard_error_fmt(hdl, 4653248571Smm fnvpair_value_int32(elem), errbuf); 4654219089Spjd } 4655219089Spjd } 4656219089Spjd 4657248571Smm fnvlist_free(errors); 4658248571Smm return (ret); 4659219089Spjd} 4660219089Spjd 4661219089Spjdint 4662219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4663219089Spjd{ 4664219089Spjd zfs_cmd_t zc = { 0 }; 4665219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4666219089Spjd int nvsz = 2048; 4667219089Spjd void *nvbuf; 4668219089Spjd int err = 0; 4669248571Smm char errbuf[1024]; 4670219089Spjd 4671219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4672219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4673219089Spjd 4674219089Spjdtryagain: 4675219089Spjd 4676219089Spjd nvbuf = malloc(nvsz); 4677219089Spjd if (nvbuf == NULL) { 4678219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4679219089Spjd goto out; 4680219089Spjd } 4681219089Spjd 4682219089Spjd zc.zc_nvlist_dst_size = nvsz; 4683219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4684219089Spjd 4685219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4686219089Spjd 4687230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4688219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4689219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4690219089Spjd zc.zc_name); 4691219089Spjd switch (errno) { 4692219089Spjd case ENOMEM: 4693219089Spjd free(nvbuf); 4694219089Spjd nvsz = zc.zc_nvlist_dst_size; 4695219089Spjd goto tryagain; 4696219089Spjd 4697219089Spjd case ENOTSUP: 4698219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4699219089Spjd "pool must be upgraded")); 4700219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4701219089Spjd break; 4702219089Spjd case EINVAL: 4703219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4704219089Spjd break; 4705219089Spjd case ENOENT: 4706219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4707219089Spjd break; 4708219089Spjd default: 4709219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4710219089Spjd break; 4711219089Spjd } 4712219089Spjd } else { 4713219089Spjd /* success */ 4714219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4715219089Spjd if (rc) { 4716219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4717219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4718219089Spjd zc.zc_name); 4719219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4720219089Spjd } 4721219089Spjd } 4722219089Spjd 4723219089Spjd free(nvbuf); 4724219089Spjdout: 4725219089Spjd return (err); 4726219089Spjd} 4727219089Spjd 4728219089Spjdint 4729219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4730219089Spjd{ 4731219089Spjd zfs_cmd_t zc = { 0 }; 4732219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4733219089Spjd char *nvbuf; 4734248571Smm char errbuf[1024]; 4735219089Spjd size_t nvsz; 4736219089Spjd int err; 4737219089Spjd 4738219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4739219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4740219089Spjd 4741219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4742219089Spjd assert(err == 0); 4743219089Spjd 4744219089Spjd nvbuf = malloc(nvsz); 4745219089Spjd 4746219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4747219089Spjd assert(err == 0); 4748219089Spjd 4749219089Spjd zc.zc_nvlist_src_size = nvsz; 4750219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4751219089Spjd zc.zc_perm_action = un; 4752219089Spjd 4753219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4754219089Spjd 4755219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4756219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4757219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4758219089Spjd zc.zc_name); 4759219089Spjd switch (errno) { 4760219089Spjd case ENOTSUP: 4761219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4762219089Spjd "pool must be upgraded")); 4763219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4764219089Spjd break; 4765219089Spjd case EINVAL: 4766219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4767219089Spjd break; 4768219089Spjd case ENOENT: 4769219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4770219089Spjd break; 4771219089Spjd default: 4772219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4773219089Spjd break; 4774219089Spjd } 4775219089Spjd } 4776219089Spjd 4777219089Spjd free(nvbuf); 4778219089Spjd 4779219089Spjd return (err); 4780219089Spjd} 4781219089Spjd 4782219089Spjdint 4783219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4784219089Spjd{ 4785248571Smm int err; 4786248571Smm char errbuf[1024]; 4787219089Spjd 4788248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4789219089Spjd 4790248571Smm if (err != 0) { 4791248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4792219089Spjd 4793219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4794219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4795248571Smm zhp->zfs_name); 4796248571Smm switch (err) { 4797219089Spjd case ENOTSUP: 4798219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4799219089Spjd "pool must be upgraded")); 4800219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4801219089Spjd break; 4802219089Spjd case EINVAL: 4803219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4804219089Spjd break; 4805219089Spjd case ENOENT: 4806219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4807219089Spjd break; 4808219089Spjd default: 4809219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4810219089Spjd break; 4811219089Spjd } 4812219089Spjd } 4813219089Spjd 4814219089Spjd return (err); 4815219089Spjd} 4816219089Spjd 4817251629Sdelphij/* 4818251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4819251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4820251629Sdelphij * suite's shell version in reservation.kshlib. 4821251629Sdelphij */ 4822219089Spjduint64_t 4823219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4824219089Spjd{ 4825219089Spjd uint64_t numdb; 4826219089Spjd uint64_t nblocks, volblocksize; 4827219089Spjd int ncopies; 4828219089Spjd char *strval; 4829219089Spjd 4830219089Spjd if (nvlist_lookup_string(props, 4831219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4832219089Spjd ncopies = atoi(strval); 4833219089Spjd else 4834219089Spjd ncopies = 1; 4835219089Spjd if (nvlist_lookup_uint64(props, 4836219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4837219089Spjd &volblocksize) != 0) 4838219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4839219089Spjd nblocks = volsize/volblocksize; 4840219089Spjd /* start with metadnode L0-L6 */ 4841219089Spjd numdb = 7; 4842219089Spjd /* calculate number of indirects */ 4843219089Spjd while (nblocks > 1) { 4844219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4845219089Spjd nblocks /= DNODES_PER_LEVEL; 4846219089Spjd numdb += nblocks; 4847219089Spjd } 4848219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4849219089Spjd volsize *= ncopies; 4850219089Spjd /* 4851219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4852219089Spjd * compressed, but in practice they compress down to about 4853219089Spjd * 1100 bytes 4854219089Spjd */ 4855219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4856219089Spjd volsize += numdb; 4857219089Spjd return (volsize); 4858219089Spjd} 4859219089Spjd 4860168404Spjd/* 4861168404Spjd * Attach/detach the given filesystem to/from the given jail. 4862168404Spjd */ 4863168404Spjdint 4864168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4865168404Spjd{ 4866168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4867168404Spjd zfs_cmd_t zc = { 0 }; 4868168404Spjd char errbuf[1024]; 4869224525Smm unsigned long cmd; 4870224525Smm int ret; 4871168404Spjd 4872168404Spjd if (attach) { 4873168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4874168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4875168404Spjd } else { 4876168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4877249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4878168404Spjd } 4879168404Spjd 4880168404Spjd switch (zhp->zfs_type) { 4881168404Spjd case ZFS_TYPE_VOLUME: 4882168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4883168404Spjd "volumes can not be jailed")); 4884168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4885168404Spjd case ZFS_TYPE_SNAPSHOT: 4886168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4887168404Spjd "snapshots can not be jailed")); 4888168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4889168404Spjd } 4890168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4891168404Spjd 4892168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4893168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4894168404Spjd zc.zc_jailid = jailid; 4895168404Spjd 4896168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4897168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4898168404Spjd zfs_standard_error(hdl, errno, errbuf); 4899168404Spjd 4900168404Spjd return (ret); 4901168404Spjd} 4902