libzfs_dataset.c revision 307046
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. 27307046Smav * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. 28307046Smav * Copyright (c) 2013 Martin Matuska. All rights reserved. 29251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 30259850Sdelphij * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 31296519Smav * Copyright (c) 2014 Integros [integros.com] 32168404Spjd */ 33168404Spjd 34168404Spjd#include <ctype.h> 35168404Spjd#include <errno.h> 36168404Spjd#include <libintl.h> 37168404Spjd#include <math.h> 38168404Spjd#include <stdio.h> 39168404Spjd#include <stdlib.h> 40168404Spjd#include <strings.h> 41168404Spjd#include <unistd.h> 42185029Spjd#include <stddef.h> 43168404Spjd#include <zone.h> 44168404Spjd#include <fcntl.h> 45168404Spjd#include <sys/mntent.h> 46168404Spjd#include <sys/mount.h> 47185029Spjd#include <priv.h> 48185029Spjd#include <pwd.h> 49185029Spjd#include <grp.h> 50185029Spjd#include <stddef.h> 51209962Smm#include <idmap.h> 52168404Spjd 53219089Spjd#include <sys/dnode.h> 54168404Spjd#include <sys/spa.h> 55168404Spjd#include <sys/zap.h> 56209962Smm#include <sys/misc.h> 57168404Spjd#include <libzfs.h> 58168404Spjd 59168404Spjd#include "zfs_namecheck.h" 60168404Spjd#include "zfs_prop.h" 61168404Spjd#include "libzfs_impl.h" 62185029Spjd#include "zfs_deleg.h" 63168404Spjd 64209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 65209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 66168676Spjd 67168404Spjd/* 68168404Spjd * Given a single type (not a mask of types), return the type in a human 69168404Spjd * readable form. 70168404Spjd */ 71168404Spjdconst char * 72168404Spjdzfs_type_to_name(zfs_type_t type) 73168404Spjd{ 74168404Spjd switch (type) { 75168404Spjd case ZFS_TYPE_FILESYSTEM: 76168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 77168404Spjd case ZFS_TYPE_SNAPSHOT: 78168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 79168404Spjd case ZFS_TYPE_VOLUME: 80168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 81168404Spjd } 82168404Spjd 83168404Spjd return (NULL); 84168404Spjd} 85168404Spjd 86168404Spjd/* 87168404Spjd * Given a path and mask of ZFS types, return a string describing this dataset. 88168404Spjd * This is used when we fail to open a dataset and we cannot get an exact type. 89168404Spjd * We guess what the type would have been based on the path and the mask of 90168404Spjd * acceptable types. 91168404Spjd */ 92168404Spjdstatic const char * 93168404Spjdpath_to_str(const char *path, int types) 94168404Spjd{ 95168404Spjd /* 96168404Spjd * When given a single type, always report the exact type. 97168404Spjd */ 98168404Spjd if (types == ZFS_TYPE_SNAPSHOT) 99168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 100168404Spjd if (types == ZFS_TYPE_FILESYSTEM) 101168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 102168404Spjd if (types == ZFS_TYPE_VOLUME) 103168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 104168404Spjd 105168404Spjd /* 106168404Spjd * The user is requesting more than one type of dataset. If this is the 107168404Spjd * case, consult the path itself. If we're looking for a snapshot, and 108168404Spjd * a '@' is found, then report it as "snapshot". Otherwise, remove the 109168404Spjd * snapshot attribute and try again. 110168404Spjd */ 111168404Spjd if (types & ZFS_TYPE_SNAPSHOT) { 112168404Spjd if (strchr(path, '@') != NULL) 113168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 114168404Spjd return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); 115168404Spjd } 116168404Spjd 117168404Spjd /* 118168404Spjd * The user has requested either filesystems or volumes. 119168404Spjd * We have no way of knowing a priori what type this would be, so always 120168404Spjd * report it as "filesystem" or "volume", our two primitive types. 121168404Spjd */ 122168404Spjd if (types & ZFS_TYPE_FILESYSTEM) 123168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 124168404Spjd 125168404Spjd assert(types & ZFS_TYPE_VOLUME); 126168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 127168404Spjd} 128168404Spjd 129168404Spjd/* 130168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 131209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 132209962Smm * explain exactly why the name was not valid. 133168404Spjd */ 134219089Spjdint 135185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 136185029Spjd boolean_t modifying) 137168404Spjd{ 138168404Spjd namecheck_err_t why; 139168404Spjd char what; 140168404Spjd 141219089Spjd (void) zfs_prop_get_table(); 142168404Spjd if (dataset_namecheck(path, &why, &what) != 0) { 143168404Spjd if (hdl != NULL) { 144168404Spjd switch (why) { 145168404Spjd case NAME_ERR_TOOLONG: 146168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 147168404Spjd "name is too long")); 148168404Spjd break; 149168404Spjd 150168404Spjd case NAME_ERR_LEADING_SLASH: 151168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 152168404Spjd "leading slash in name")); 153168404Spjd break; 154168404Spjd 155168404Spjd case NAME_ERR_EMPTY_COMPONENT: 156168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 157168404Spjd "empty component in name")); 158168404Spjd break; 159168404Spjd 160168404Spjd case NAME_ERR_TRAILING_SLASH: 161168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 162168404Spjd "trailing slash in name")); 163168404Spjd break; 164168404Spjd 165168404Spjd case NAME_ERR_INVALCHAR: 166168404Spjd zfs_error_aux(hdl, 167168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 168168404Spjd "'%c' in name"), what); 169168404Spjd break; 170168404Spjd 171168404Spjd case NAME_ERR_MULTIPLE_AT: 172168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 173168404Spjd "multiple '@' delimiters in name")); 174168404Spjd break; 175168404Spjd 176168404Spjd case NAME_ERR_NOLETTER: 177168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 178168404Spjd "pool doesn't begin with a letter")); 179168404Spjd break; 180168404Spjd 181168404Spjd case NAME_ERR_RESERVED: 182168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 183168404Spjd "name is reserved")); 184168404Spjd break; 185168404Spjd 186168404Spjd case NAME_ERR_DISKLIKE: 187168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 188168404Spjd "reserved disk name")); 189168404Spjd break; 190168404Spjd } 191168404Spjd } 192168404Spjd 193168404Spjd return (0); 194168404Spjd } 195168404Spjd 196168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 197168404Spjd if (hdl != NULL) 198168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 199168404Spjd "snapshot delimiter '@' in filesystem name")); 200168404Spjd return (0); 201168404Spjd } 202168404Spjd 203168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 204168404Spjd if (hdl != NULL) 205168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 206168404Spjd "missing '@' delimiter in snapshot name")); 207168404Spjd return (0); 208168404Spjd } 209168404Spjd 210185029Spjd if (modifying && strchr(path, '%') != NULL) { 211185029Spjd if (hdl != NULL) 212185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 213185029Spjd "invalid character %c in name"), '%'); 214185029Spjd return (0); 215185029Spjd } 216185029Spjd 217168404Spjd return (-1); 218168404Spjd} 219168404Spjd 220168404Spjdint 221168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 222168404Spjd{ 223185029Spjd if (type == ZFS_TYPE_POOL) 224185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 225185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 226168404Spjd} 227168404Spjd 228168404Spjd/* 229168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 230168404Spjd * properties into a separate nvlist. 231168404Spjd */ 232185029Spjdstatic nvlist_t * 233185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 234168404Spjd{ 235168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 236168404Spjd nvpair_t *elem; 237168404Spjd nvlist_t *propval; 238185029Spjd nvlist_t *nvl; 239168404Spjd 240185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 241185029Spjd (void) no_memory(hdl); 242185029Spjd return (NULL); 243185029Spjd } 244168404Spjd 245168404Spjd elem = NULL; 246185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 247168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 248168404Spjd continue; 249168404Spjd 250168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 251185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 252185029Spjd nvlist_free(nvl); 253185029Spjd (void) no_memory(hdl); 254185029Spjd return (NULL); 255185029Spjd } 256168404Spjd } 257168404Spjd 258185029Spjd return (nvl); 259168404Spjd} 260168404Spjd 261185029Spjdstatic zpool_handle_t * 262185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 263185029Spjd{ 264185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 265185029Spjd zpool_handle_t *zph; 266185029Spjd 267185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 268185029Spjd if (hdl->libzfs_pool_handles != NULL) 269185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 270185029Spjd hdl->libzfs_pool_handles = zph; 271185029Spjd } 272185029Spjd return (zph); 273185029Spjd} 274185029Spjd 275185029Spjdstatic zpool_handle_t * 276185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 277185029Spjd{ 278185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 279185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 280185029Spjd 281185029Spjd while ((zph != NULL) && 282185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 283185029Spjd zph = zph->zpool_next; 284185029Spjd return (zph); 285185029Spjd} 286185029Spjd 287168404Spjd/* 288185029Spjd * Returns a handle to the pool that contains the provided dataset. 289185029Spjd * If a handle to that pool already exists then that handle is returned. 290185029Spjd * Otherwise, a new handle is created and added to the list of handles. 291185029Spjd */ 292185029Spjdstatic zpool_handle_t * 293185029Spjdzpool_handle(zfs_handle_t *zhp) 294185029Spjd{ 295185029Spjd char *pool_name; 296185029Spjd int len; 297185029Spjd zpool_handle_t *zph; 298185029Spjd 299260183Sdelphij len = strcspn(zhp->zfs_name, "/@#") + 1; 300185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 301185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 302185029Spjd 303185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 304185029Spjd if (zph == NULL) 305185029Spjd zph = zpool_add_handle(zhp, pool_name); 306185029Spjd 307185029Spjd free(pool_name); 308185029Spjd return (zph); 309185029Spjd} 310185029Spjd 311185029Spjdvoid 312185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 313185029Spjd{ 314185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 315185029Spjd 316185029Spjd while (zph != NULL) { 317185029Spjd next = zph->zpool_next; 318185029Spjd zpool_close(zph); 319185029Spjd zph = next; 320185029Spjd } 321185029Spjd hdl->libzfs_pool_handles = NULL; 322185029Spjd} 323185029Spjd 324185029Spjd/* 325168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 326168404Spjd */ 327219089Spjdstatic int 328209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 329168404Spjd{ 330168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 331168404Spjd 332209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 333168404Spjd 334209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 335168404Spjd if (errno == ENOMEM) { 336209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 337168404Spjd return (-1); 338168404Spjd } 339168404Spjd } else { 340168404Spjd return (-1); 341168404Spjd } 342168404Spjd } 343209962Smm return (0); 344209962Smm} 345168404Spjd 346219089Spjd/* 347219089Spjd * Utility function to get the received properties of the given object. 348219089Spjd */ 349209962Smmstatic int 350219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 351219089Spjd{ 352219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 353219089Spjd nvlist_t *recvdprops; 354219089Spjd zfs_cmd_t zc = { 0 }; 355219089Spjd int err; 356219089Spjd 357219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 358219089Spjd return (-1); 359219089Spjd 360219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 361219089Spjd 362219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 363219089Spjd if (errno == ENOMEM) { 364219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 365219089Spjd return (-1); 366219089Spjd } 367219089Spjd } else { 368219089Spjd zcmd_free_nvlists(&zc); 369219089Spjd return (-1); 370219089Spjd } 371219089Spjd } 372219089Spjd 373219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 374219089Spjd zcmd_free_nvlists(&zc); 375219089Spjd if (err != 0) 376219089Spjd return (-1); 377219089Spjd 378219089Spjd nvlist_free(zhp->zfs_recvd_props); 379219089Spjd zhp->zfs_recvd_props = recvdprops; 380219089Spjd 381219089Spjd return (0); 382219089Spjd} 383219089Spjd 384219089Spjdstatic int 385209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 386209962Smm{ 387209962Smm nvlist_t *allprops, *userprops; 388168404Spjd 389209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 390209962Smm 391209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 392168404Spjd return (-1); 393168404Spjd } 394168404Spjd 395209962Smm /* 396209962Smm * XXX Why do we store the user props separately, in addition to 397209962Smm * storing them in zfs_props? 398209962Smm */ 399185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 400185029Spjd nvlist_free(allprops); 401168404Spjd return (-1); 402185029Spjd } 403168404Spjd 404185029Spjd nvlist_free(zhp->zfs_props); 405185029Spjd nvlist_free(zhp->zfs_user_props); 406185029Spjd 407185029Spjd zhp->zfs_props = allprops; 408185029Spjd zhp->zfs_user_props = userprops; 409185029Spjd 410168404Spjd return (0); 411168404Spjd} 412168404Spjd 413209962Smmstatic int 414209962Smmget_stats(zfs_handle_t *zhp) 415209962Smm{ 416209962Smm int rc = 0; 417209962Smm zfs_cmd_t zc = { 0 }; 418209962Smm 419209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 420209962Smm return (-1); 421209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 422209962Smm rc = -1; 423209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 424209962Smm rc = -1; 425209962Smm zcmd_free_nvlists(&zc); 426209962Smm return (rc); 427209962Smm} 428209962Smm 429168404Spjd/* 430168404Spjd * Refresh the properties currently stored in the handle. 431168404Spjd */ 432168404Spjdvoid 433168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 434168404Spjd{ 435168404Spjd (void) get_stats(zhp); 436168404Spjd} 437168404Spjd 438168404Spjd/* 439168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 440168404Spjd * zfs_iter_* to create child handles on the fly. 441168404Spjd */ 442209962Smmstatic int 443209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 444168404Spjd{ 445219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 446209962Smm return (-1); 447168404Spjd 448168404Spjd /* 449168404Spjd * We've managed to open the dataset and gather statistics. Determine 450168404Spjd * the high-level type. 451168404Spjd */ 452168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 453168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 454168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 455168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 456168404Spjd else 457168404Spjd abort(); 458168404Spjd 459168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 460168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 461168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 462168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 463168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 464168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 465168404Spjd else 466168404Spjd abort(); /* we should never see any other types */ 467168404Spjd 468219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 469219089Spjd return (-1); 470219089Spjd 471209962Smm return (0); 472209962Smm} 473209962Smm 474209962Smmzfs_handle_t * 475209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 476209962Smm{ 477209962Smm zfs_cmd_t zc = { 0 }; 478209962Smm 479209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 480209962Smm 481209962Smm if (zhp == NULL) 482209962Smm return (NULL); 483209962Smm 484209962Smm zhp->zfs_hdl = hdl; 485209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 486209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 487209962Smm free(zhp); 488209962Smm return (NULL); 489209962Smm } 490209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 491209962Smm zcmd_free_nvlists(&zc); 492209962Smm free(zhp); 493209962Smm return (NULL); 494209962Smm } 495209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 496209962Smm free(zhp); 497209962Smm zhp = NULL; 498209962Smm } 499209962Smm zcmd_free_nvlists(&zc); 500168404Spjd return (zhp); 501168404Spjd} 502168404Spjd 503228103Smmzfs_handle_t * 504209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 505209962Smm{ 506209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 507209962Smm 508209962Smm if (zhp == NULL) 509209962Smm return (NULL); 510209962Smm 511209962Smm zhp->zfs_hdl = hdl; 512209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 513209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 514209962Smm free(zhp); 515209962Smm return (NULL); 516209962Smm } 517209962Smm return (zhp); 518209962Smm} 519209962Smm 520228103Smmzfs_handle_t * 521230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 522230438Spjd{ 523230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 524230438Spjd 525230438Spjd if (zhp == NULL) 526230438Spjd return (NULL); 527230438Spjd 528230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 529230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 530230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 531230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 532230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 533230438Spjd return (zhp); 534230438Spjd} 535230438Spjd 536230438Spjdzfs_handle_t * 537228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 538228103Smm{ 539228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 540228103Smm 541228103Smm if (zhp == NULL) 542228103Smm return (NULL); 543228103Smm 544228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 545228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 546228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 547228103Smm sizeof (zhp->zfs_name)); 548228103Smm zhp->zfs_type = zhp_orig->zfs_type; 549228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 550228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 551228103Smm if (zhp_orig->zfs_props != NULL) { 552228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 553228103Smm (void) no_memory(zhp->zfs_hdl); 554228103Smm zfs_close(zhp); 555228103Smm return (NULL); 556228103Smm } 557228103Smm } 558228103Smm if (zhp_orig->zfs_user_props != NULL) { 559228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 560228103Smm &zhp->zfs_user_props, 0) != 0) { 561228103Smm (void) no_memory(zhp->zfs_hdl); 562228103Smm zfs_close(zhp); 563228103Smm return (NULL); 564228103Smm } 565228103Smm } 566228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 567228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 568228103Smm &zhp->zfs_recvd_props, 0)) { 569228103Smm (void) no_memory(zhp->zfs_hdl); 570228103Smm zfs_close(zhp); 571228103Smm return (NULL); 572228103Smm } 573228103Smm } 574228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 575228103Smm if (zhp_orig->zfs_mntopts != NULL) { 576228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 577228103Smm zhp_orig->zfs_mntopts); 578228103Smm } 579228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 580228103Smm return (zhp); 581228103Smm} 582228103Smm 583260183Sdelphijboolean_t 584260183Sdelphijzfs_bookmark_exists(const char *path) 585260183Sdelphij{ 586260183Sdelphij nvlist_t *bmarks; 587260183Sdelphij nvlist_t *props; 588260183Sdelphij char fsname[ZFS_MAXNAMELEN]; 589260183Sdelphij char *bmark_name; 590260183Sdelphij char *pound; 591260183Sdelphij int err; 592260183Sdelphij boolean_t rv; 593260183Sdelphij 594260183Sdelphij 595260183Sdelphij (void) strlcpy(fsname, path, sizeof (fsname)); 596260183Sdelphij pound = strchr(fsname, '#'); 597260183Sdelphij if (pound == NULL) 598260183Sdelphij return (B_FALSE); 599260183Sdelphij 600260183Sdelphij *pound = '\0'; 601260183Sdelphij bmark_name = pound + 1; 602260183Sdelphij props = fnvlist_alloc(); 603260183Sdelphij err = lzc_get_bookmarks(fsname, props, &bmarks); 604260183Sdelphij nvlist_free(props); 605260183Sdelphij if (err != 0) { 606260183Sdelphij nvlist_free(bmarks); 607260183Sdelphij return (B_FALSE); 608260183Sdelphij } 609260183Sdelphij 610260183Sdelphij rv = nvlist_exists(bmarks, bmark_name); 611260183Sdelphij nvlist_free(bmarks); 612260183Sdelphij return (rv); 613260183Sdelphij} 614260183Sdelphij 615260183Sdelphijzfs_handle_t * 616260183Sdelphijmake_bookmark_handle(zfs_handle_t *parent, const char *path, 617260183Sdelphij nvlist_t *bmark_props) 618260183Sdelphij{ 619260183Sdelphij zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 620260183Sdelphij 621260183Sdelphij if (zhp == NULL) 622260183Sdelphij return (NULL); 623260183Sdelphij 624260183Sdelphij /* Fill in the name. */ 625260183Sdelphij zhp->zfs_hdl = parent->zfs_hdl; 626260183Sdelphij (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 627260183Sdelphij 628260183Sdelphij /* Set the property lists. */ 629260183Sdelphij if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) { 630260183Sdelphij free(zhp); 631260183Sdelphij return (NULL); 632260183Sdelphij } 633260183Sdelphij 634260183Sdelphij /* Set the types. */ 635260183Sdelphij zhp->zfs_head_type = parent->zfs_head_type; 636260183Sdelphij zhp->zfs_type = ZFS_TYPE_BOOKMARK; 637260183Sdelphij 638260183Sdelphij if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) { 639260183Sdelphij nvlist_free(zhp->zfs_props); 640260183Sdelphij free(zhp); 641260183Sdelphij return (NULL); 642260183Sdelphij } 643260183Sdelphij 644260183Sdelphij return (zhp); 645260183Sdelphij} 646260183Sdelphij 647168404Spjd/* 648168404Spjd * Opens the given snapshot, filesystem, or volume. The 'types' 649168404Spjd * argument is a mask of acceptable types. The function will print an 650168404Spjd * appropriate error message and return NULL if it can't be opened. 651168404Spjd */ 652168404Spjdzfs_handle_t * 653168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 654168404Spjd{ 655168404Spjd zfs_handle_t *zhp; 656168404Spjd char errbuf[1024]; 657168404Spjd 658168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 659168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 660168404Spjd 661168404Spjd /* 662168404Spjd * Validate the name before we even try to open it. 663168404Spjd */ 664185029Spjd if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { 665168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 666168404Spjd "invalid dataset name")); 667168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 668168404Spjd return (NULL); 669168404Spjd } 670168404Spjd 671168404Spjd /* 672168404Spjd * Try to get stats for the dataset, which will tell us if it exists. 673168404Spjd */ 674168404Spjd errno = 0; 675168404Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 676168404Spjd (void) zfs_standard_error(hdl, errno, errbuf); 677168404Spjd return (NULL); 678168404Spjd } 679168404Spjd 680240870Spjd if (zhp == NULL) { 681240870Spjd char *at = strchr(path, '@'); 682240870Spjd 683240870Spjd if (at != NULL) 684240870Spjd *at = '\0'; 685240870Spjd errno = 0; 686240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 687240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 688240870Spjd return (NULL); 689240870Spjd } 690240870Spjd if (at != NULL) 691240870Spjd *at = '@'; 692240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 693240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 694240870Spjd } 695240870Spjd 696168404Spjd if (!(types & zhp->zfs_type)) { 697168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 698168404Spjd zfs_close(zhp); 699168404Spjd return (NULL); 700168404Spjd } 701168404Spjd 702168404Spjd return (zhp); 703168404Spjd} 704168404Spjd 705168404Spjd/* 706168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 707168404Spjd */ 708168404Spjdvoid 709168404Spjdzfs_close(zfs_handle_t *zhp) 710168404Spjd{ 711168404Spjd if (zhp->zfs_mntopts) 712168404Spjd free(zhp->zfs_mntopts); 713168404Spjd nvlist_free(zhp->zfs_props); 714168404Spjd nvlist_free(zhp->zfs_user_props); 715219089Spjd nvlist_free(zhp->zfs_recvd_props); 716168404Spjd free(zhp); 717168404Spjd} 718168404Spjd 719209962Smmtypedef struct mnttab_node { 720209962Smm struct mnttab mtn_mt; 721209962Smm avl_node_t mtn_node; 722209962Smm} mnttab_node_t; 723209962Smm 724209962Smmstatic int 725209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 726209962Smm{ 727209962Smm const mnttab_node_t *mtn1 = arg1; 728209962Smm const mnttab_node_t *mtn2 = arg2; 729209962Smm int rv; 730209962Smm 731209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 732209962Smm 733209962Smm if (rv == 0) 734209962Smm return (0); 735209962Smm return (rv > 0 ? 1 : -1); 736209962Smm} 737209962Smm 738209962Smmvoid 739209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 740209962Smm{ 741209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 742209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 743209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 744209962Smm} 745209962Smm 746209962Smmvoid 747209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 748209962Smm{ 749209962Smm struct mnttab entry; 750209962Smm 751209962Smm rewind(hdl->libzfs_mnttab); 752209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 753209962Smm mnttab_node_t *mtn; 754209962Smm 755209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 756209962Smm continue; 757209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 758209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 759209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 760209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 761209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 762209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 763209962Smm } 764209962Smm} 765209962Smm 766209962Smmvoid 767209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 768209962Smm{ 769209962Smm void *cookie = NULL; 770209962Smm mnttab_node_t *mtn; 771209962Smm 772209962Smm while (mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) { 773209962Smm free(mtn->mtn_mt.mnt_special); 774209962Smm free(mtn->mtn_mt.mnt_mountp); 775209962Smm free(mtn->mtn_mt.mnt_fstype); 776209962Smm free(mtn->mtn_mt.mnt_mntopts); 777209962Smm free(mtn); 778209962Smm } 779209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 780209962Smm} 781209962Smm 782209962Smmvoid 783209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 784209962Smm{ 785209962Smm hdl->libzfs_mnttab_enable = enable; 786209962Smm} 787209962Smm 788185029Spjdint 789209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 790209962Smm struct mnttab *entry) 791209962Smm{ 792209962Smm mnttab_node_t find; 793209962Smm mnttab_node_t *mtn; 794209962Smm 795209962Smm if (!hdl->libzfs_mnttab_enable) { 796209962Smm struct mnttab srch = { 0 }; 797209962Smm 798209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 799209962Smm libzfs_mnttab_fini(hdl); 800209962Smm rewind(hdl->libzfs_mnttab); 801209962Smm srch.mnt_special = (char *)fsname; 802209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 803209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 804209962Smm return (0); 805209962Smm else 806209962Smm return (ENOENT); 807209962Smm } 808209962Smm 809209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 810209962Smm libzfs_mnttab_update(hdl); 811209962Smm 812209962Smm find.mtn_mt.mnt_special = (char *)fsname; 813209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 814209962Smm if (mtn) { 815209962Smm *entry = mtn->mtn_mt; 816209962Smm return (0); 817209962Smm } 818209962Smm return (ENOENT); 819209962Smm} 820209962Smm 821209962Smmvoid 822209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 823209962Smm const char *mountp, const char *mntopts) 824209962Smm{ 825209962Smm mnttab_node_t *mtn; 826209962Smm 827209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 828209962Smm return; 829209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 830209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 831209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 832209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 833209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 834209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 835209962Smm} 836209962Smm 837209962Smmvoid 838209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 839209962Smm{ 840209962Smm mnttab_node_t find; 841209962Smm mnttab_node_t *ret; 842209962Smm 843209962Smm find.mtn_mt.mnt_special = (char *)fsname; 844209962Smm if (ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) { 845209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 846209962Smm free(ret->mtn_mt.mnt_special); 847209962Smm free(ret->mtn_mt.mnt_mountp); 848209962Smm free(ret->mtn_mt.mnt_fstype); 849209962Smm free(ret->mtn_mt.mnt_mntopts); 850209962Smm free(ret); 851209962Smm } 852209962Smm} 853209962Smm 854209962Smmint 855185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 856168404Spjd{ 857185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 858168404Spjd 859185029Spjd if (zpool_handle == NULL) 860168404Spjd return (-1); 861168404Spjd 862185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 863185029Spjd ZPOOL_PROP_VERSION, NULL); 864168404Spjd return (0); 865168404Spjd} 866168404Spjd 867168404Spjd/* 868185029Spjd * The choice of reservation property depends on the SPA version. 869168404Spjd */ 870168404Spjdstatic int 871185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 872168404Spjd{ 873185029Spjd int spa_version; 874168404Spjd 875185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 876168404Spjd return (-1); 877168404Spjd 878185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 879185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 880185029Spjd else 881185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 882168404Spjd 883168404Spjd return (0); 884168404Spjd} 885168404Spjd 886168404Spjd/* 887168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 888168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 889168404Spjd * strings. 890168404Spjd */ 891168404Spjdnvlist_t * 892185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 893289500Smav uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl, 894289500Smav const char *errbuf) 895168404Spjd{ 896168404Spjd nvpair_t *elem; 897168404Spjd uint64_t intval; 898168404Spjd char *strval; 899185029Spjd zfs_prop_t prop; 900168404Spjd nvlist_t *ret; 901185029Spjd int chosen_normal = -1; 902185029Spjd int chosen_utf = -1; 903168404Spjd 904168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 905168404Spjd (void) no_memory(hdl); 906168404Spjd return (NULL); 907168404Spjd } 908168404Spjd 909209962Smm /* 910209962Smm * Make sure this property is valid and applies to this type. 911209962Smm */ 912209962Smm 913168404Spjd elem = NULL; 914168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 915185029Spjd const char *propname = nvpair_name(elem); 916168404Spjd 917209962Smm prop = zfs_name_to_prop(propname); 918209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 919185029Spjd /* 920209962Smm * This is a user property: make sure it's a 921185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 922185029Spjd */ 923185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 924185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 925185029Spjd "'%s' must be a string"), propname); 926185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 927185029Spjd goto error; 928168404Spjd } 929168404Spjd 930185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 931185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 932185029Spjd "property name '%s' is too long"), 933185029Spjd propname); 934185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 935185029Spjd goto error; 936185029Spjd } 937185029Spjd 938168404Spjd (void) nvpair_value_string(elem, &strval); 939168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 940168404Spjd (void) no_memory(hdl); 941168404Spjd goto error; 942168404Spjd } 943168404Spjd continue; 944168404Spjd } 945168404Spjd 946209962Smm /* 947209962Smm * Currently, only user properties can be modified on 948209962Smm * snapshots. 949209962Smm */ 950185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 951185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 952185029Spjd "this property can not be modified for snapshots")); 953185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 954185029Spjd goto error; 955185029Spjd } 956168404Spjd 957209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 958209962Smm zfs_userquota_prop_t uqtype; 959209962Smm char newpropname[128]; 960209962Smm char domain[128]; 961209962Smm uint64_t rid; 962209962Smm uint64_t valary[3]; 963209962Smm 964209962Smm if (userquota_propname_decode(propname, zoned, 965209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 966209962Smm zfs_error_aux(hdl, 967209962Smm dgettext(TEXT_DOMAIN, 968209962Smm "'%s' has an invalid user/group name"), 969209962Smm propname); 970209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 971209962Smm goto error; 972209962Smm } 973209962Smm 974209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 975209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 976209962Smm zfs_error_aux(hdl, 977209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 978209962Smm propname); 979209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 980209962Smm errbuf); 981209962Smm goto error; 982209962Smm } 983209962Smm 984209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 985209962Smm (void) nvpair_value_string(elem, &strval); 986209962Smm if (strcmp(strval, "none") == 0) { 987209962Smm intval = 0; 988209962Smm } else if (zfs_nicestrtonum(hdl, 989209962Smm strval, &intval) != 0) { 990209962Smm (void) zfs_error(hdl, 991209962Smm EZFS_BADPROP, errbuf); 992209962Smm goto error; 993209962Smm } 994209962Smm } else if (nvpair_type(elem) == 995209962Smm DATA_TYPE_UINT64) { 996209962Smm (void) nvpair_value_uint64(elem, &intval); 997209962Smm if (intval == 0) { 998209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 999209962Smm "use 'none' to disable " 1000209962Smm "userquota/groupquota")); 1001209962Smm goto error; 1002209962Smm } 1003209962Smm } else { 1004209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1005209962Smm "'%s' must be a number"), propname); 1006209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1007209962Smm goto error; 1008209962Smm } 1009209962Smm 1010219089Spjd /* 1011219089Spjd * Encode the prop name as 1012219089Spjd * userquota@<hex-rid>-domain, to make it easy 1013219089Spjd * for the kernel to decode. 1014219089Spjd */ 1015209962Smm (void) snprintf(newpropname, sizeof (newpropname), 1016219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 1017219089Spjd (longlong_t)rid, domain); 1018209962Smm valary[0] = uqtype; 1019209962Smm valary[1] = rid; 1020209962Smm valary[2] = intval; 1021209962Smm if (nvlist_add_uint64_array(ret, newpropname, 1022209962Smm valary, 3) != 0) { 1023209962Smm (void) no_memory(hdl); 1024209962Smm goto error; 1025209962Smm } 1026209962Smm continue; 1027228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 1028228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1029228103Smm "'%s' is readonly"), 1030228103Smm propname); 1031228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1032228103Smm goto error; 1033209962Smm } 1034209962Smm 1035209962Smm if (prop == ZPROP_INVAL) { 1036209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1037209962Smm "invalid property '%s'"), propname); 1038209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1039209962Smm goto error; 1040209962Smm } 1041209962Smm 1042168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 1043168404Spjd zfs_error_aux(hdl, 1044168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 1045168404Spjd "apply to datasets of this type"), propname); 1046168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 1047168404Spjd goto error; 1048168404Spjd } 1049168404Spjd 1050168404Spjd if (zfs_prop_readonly(prop) && 1051185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 1052168404Spjd zfs_error_aux(hdl, 1053168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 1054168404Spjd propname); 1055168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1056168404Spjd goto error; 1057168404Spjd } 1058168404Spjd 1059185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 1060185029Spjd &strval, &intval, errbuf) != 0) 1061185029Spjd goto error; 1062185029Spjd 1063168404Spjd /* 1064185029Spjd * Perform some additional checks for specific properties. 1065168404Spjd */ 1066185029Spjd switch (prop) { 1067185029Spjd case ZFS_PROP_VERSION: 1068185029Spjd { 1069185029Spjd int version; 1070168404Spjd 1071185029Spjd if (zhp == NULL) 1072185029Spjd break; 1073185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1074185029Spjd if (intval < version) { 1075168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1076185029Spjd "Can not downgrade; already at version %u"), 1077185029Spjd version); 1078168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1079168404Spjd goto error; 1080168404Spjd } 1081168404Spjd break; 1082168404Spjd } 1083168404Spjd 1084274337Sdelphij case ZFS_PROP_VOLBLOCKSIZE: 1085168404Spjd case ZFS_PROP_RECORDSIZE: 1086274337Sdelphij { 1087274337Sdelphij int maxbs = SPA_MAXBLOCKSIZE; 1088289500Smav if (zpool_hdl != NULL) { 1089289500Smav maxbs = zpool_get_prop_int(zpool_hdl, 1090274337Sdelphij ZPOOL_PROP_MAXBLOCKSIZE, NULL); 1091274337Sdelphij } 1092274337Sdelphij /* 1093274337Sdelphij * Volumes are limited to a volblocksize of 128KB, 1094274337Sdelphij * because they typically service workloads with 1095274337Sdelphij * small random writes, which incur a large performance 1096274337Sdelphij * penalty with large blocks. 1097274337Sdelphij */ 1098274337Sdelphij if (prop == ZFS_PROP_VOLBLOCKSIZE) 1099274337Sdelphij maxbs = SPA_OLD_MAXBLOCKSIZE; 1100274337Sdelphij /* 1101274337Sdelphij * The value must be a power of two between 1102274337Sdelphij * SPA_MINBLOCKSIZE and maxbs. 1103274337Sdelphij */ 1104168404Spjd if (intval < SPA_MINBLOCKSIZE || 1105274337Sdelphij intval > maxbs || !ISP2(intval)) { 1106168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1107274337Sdelphij "'%s' must be power of 2 from 512B " 1108274337Sdelphij "to %uKB"), propname, maxbs >> 10); 1109168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1110168404Spjd goto error; 1111168404Spjd } 1112168404Spjd break; 1113274337Sdelphij } 1114219089Spjd case ZFS_PROP_MLSLABEL: 1115219089Spjd { 1116277300Ssmh#ifdef illumos 1117219089Spjd /* 1118219089Spjd * Verify the mlslabel string and convert to 1119219089Spjd * internal hex label string. 1120219089Spjd */ 1121219089Spjd 1122219089Spjd m_label_t *new_sl; 1123219089Spjd char *hex = NULL; /* internal label string */ 1124219089Spjd 1125219089Spjd /* Default value is already OK. */ 1126219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1127219089Spjd break; 1128219089Spjd 1129219089Spjd /* Verify the label can be converted to binary form */ 1130219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1131219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1132219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1133219089Spjd goto badlabel; 1134168404Spjd } 1135168404Spjd 1136219089Spjd /* Now translate to hex internal label string */ 1137219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1138219089Spjd DEF_NAMES) != 0) { 1139219089Spjd if (hex) 1140219089Spjd free(hex); 1141219089Spjd goto badlabel; 1142219089Spjd } 1143219089Spjd m_label_free(new_sl); 1144219089Spjd 1145219089Spjd /* If string is already in internal form, we're done. */ 1146219089Spjd if (strcmp(strval, hex) == 0) { 1147219089Spjd free(hex); 1148219089Spjd break; 1149219089Spjd } 1150219089Spjd 1151219089Spjd /* Replace the label string with the internal form. */ 1152219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1153219089Spjd DATA_TYPE_STRING); 1154219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1155219089Spjd hex) == 0); 1156219089Spjd free(hex); 1157219089Spjd 1158168404Spjd break; 1159168404Spjd 1160219089Spjdbadlabel: 1161219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1162219089Spjd "invalid mlslabel '%s'"), strval); 1163219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1164219089Spjd m_label_free(new_sl); /* OK if null */ 1165277300Ssmh#else /* !illumos */ 1166219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1167219089Spjd "mlslabel is not supported on FreeBSD")); 1168219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1169277300Ssmh#endif /* illumos */ 1170219089Spjd goto error; 1171219089Spjd 1172219089Spjd } 1173219089Spjd 1174168404Spjd case ZFS_PROP_MOUNTPOINT: 1175185029Spjd { 1176185029Spjd namecheck_err_t why; 1177185029Spjd 1178168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1179168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1180168404Spjd break; 1181168404Spjd 1182185029Spjd if (mountpoint_namecheck(strval, &why)) { 1183185029Spjd switch (why) { 1184185029Spjd case NAME_ERR_LEADING_SLASH: 1185185029Spjd zfs_error_aux(hdl, 1186185029Spjd dgettext(TEXT_DOMAIN, 1187185029Spjd "'%s' must be an absolute path, " 1188185029Spjd "'none', or 'legacy'"), propname); 1189185029Spjd break; 1190185029Spjd case NAME_ERR_TOOLONG: 1191185029Spjd zfs_error_aux(hdl, 1192185029Spjd dgettext(TEXT_DOMAIN, 1193185029Spjd "component of '%s' is too long"), 1194185029Spjd propname); 1195185029Spjd break; 1196185029Spjd } 1197168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1198168404Spjd goto error; 1199168404Spjd } 1200185029Spjd } 1201185029Spjd 1202168404Spjd /*FALLTHRU*/ 1203168404Spjd 1204185029Spjd case ZFS_PROP_SHARESMB: 1205168404Spjd case ZFS_PROP_SHARENFS: 1206168404Spjd /* 1207185029Spjd * For the mountpoint and sharenfs or sharesmb 1208185029Spjd * properties, check if it can be set in a 1209185029Spjd * global/non-global zone based on 1210168404Spjd * the zoned property value: 1211168404Spjd * 1212168404Spjd * global zone non-global zone 1213168404Spjd * -------------------------------------------------- 1214168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1215168404Spjd * sharenfs (no) sharenfs (no) 1216185029Spjd * sharesmb (no) sharesmb (no) 1217168404Spjd * 1218168404Spjd * zoned=off mountpoint (yes) N/A 1219168404Spjd * sharenfs (yes) 1220185029Spjd * sharesmb (yes) 1221168404Spjd */ 1222168404Spjd if (zoned) { 1223168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1224168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1225168404Spjd "'%s' cannot be set on " 1226168404Spjd "dataset in a non-global zone"), 1227168404Spjd propname); 1228168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1229168404Spjd errbuf); 1230168404Spjd goto error; 1231185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1232185029Spjd prop == ZFS_PROP_SHARESMB) { 1233168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1234168404Spjd "'%s' cannot be set in " 1235168404Spjd "a non-global zone"), propname); 1236168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1237168404Spjd errbuf); 1238168404Spjd goto error; 1239168404Spjd } 1240168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1241168404Spjd /* 1242168404Spjd * If zoned property is 'off', this must be in 1243209962Smm * a global zone. If not, something is wrong. 1244168404Spjd */ 1245168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1246168404Spjd "'%s' cannot be set while dataset " 1247168404Spjd "'zoned' property is set"), propname); 1248168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1249168404Spjd goto error; 1250168404Spjd } 1251168404Spjd 1252168404Spjd /* 1253185029Spjd * At this point, it is legitimate to set the 1254185029Spjd * property. Now we want to make sure that the 1255185029Spjd * property value is valid if it is sharenfs. 1256168404Spjd */ 1257185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1258185029Spjd prop == ZFS_PROP_SHARESMB) && 1259185029Spjd strcmp(strval, "on") != 0 && 1260185029Spjd strcmp(strval, "off") != 0) { 1261185029Spjd zfs_share_proto_t proto; 1262168404Spjd 1263185029Spjd if (prop == ZFS_PROP_SHARESMB) 1264185029Spjd proto = PROTO_SMB; 1265185029Spjd else 1266185029Spjd proto = PROTO_NFS; 1267185029Spjd 1268185029Spjd /* 1269185029Spjd * Must be an valid sharing protocol 1270185029Spjd * option string so init the libshare 1271185029Spjd * in order to enable the parser and 1272185029Spjd * then parse the options. We use the 1273185029Spjd * control API since we don't care about 1274185029Spjd * the current configuration and don't 1275185029Spjd * want the overhead of loading it 1276185029Spjd * until we actually do something. 1277185029Spjd */ 1278185029Spjd 1279185029Spjd if (zfs_init_libshare(hdl, 1280185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1281185029Spjd /* 1282185029Spjd * An error occurred so we can't do 1283185029Spjd * anything 1284185029Spjd */ 1285185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1286185029Spjd "'%s' cannot be set: problem " 1287185029Spjd "in share initialization"), 1288185029Spjd propname); 1289185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1290185029Spjd errbuf); 1291185029Spjd goto error; 1292185029Spjd } 1293185029Spjd 1294185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1295185029Spjd /* 1296185029Spjd * There was an error in parsing so 1297185029Spjd * deal with it by issuing an error 1298185029Spjd * message and leaving after 1299185029Spjd * uninitializing the the libshare 1300185029Spjd * interface. 1301185029Spjd */ 1302185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1303185029Spjd "'%s' cannot be set to invalid " 1304185029Spjd "options"), propname); 1305185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1306185029Spjd errbuf); 1307185029Spjd zfs_uninit_libshare(hdl); 1308185029Spjd goto error; 1309185029Spjd } 1310185029Spjd zfs_uninit_libshare(hdl); 1311168404Spjd } 1312185029Spjd 1313168404Spjd break; 1314185029Spjd case ZFS_PROP_UTF8ONLY: 1315185029Spjd chosen_utf = (int)intval; 1316185029Spjd break; 1317185029Spjd case ZFS_PROP_NORMALIZE: 1318185029Spjd chosen_normal = (int)intval; 1319185029Spjd break; 1320168404Spjd } 1321168404Spjd 1322168404Spjd /* 1323168404Spjd * For changes to existing volumes, we have some additional 1324168404Spjd * checks to enforce. 1325168404Spjd */ 1326168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1327168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1328168404Spjd ZFS_PROP_VOLSIZE); 1329168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1330168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1331168404Spjd char buf[64]; 1332168404Spjd 1333168404Spjd switch (prop) { 1334168404Spjd case ZFS_PROP_RESERVATION: 1335185029Spjd case ZFS_PROP_REFRESERVATION: 1336168404Spjd if (intval > volsize) { 1337168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1338168404Spjd "'%s' is greater than current " 1339168404Spjd "volume size"), propname); 1340168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1341168404Spjd errbuf); 1342168404Spjd goto error; 1343168404Spjd } 1344168404Spjd break; 1345168404Spjd 1346168404Spjd case ZFS_PROP_VOLSIZE: 1347168404Spjd if (intval % blocksize != 0) { 1348168404Spjd zfs_nicenum(blocksize, buf, 1349168404Spjd sizeof (buf)); 1350168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1351168404Spjd "'%s' must be a multiple of " 1352168404Spjd "volume block size (%s)"), 1353168404Spjd propname, buf); 1354168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1355168404Spjd errbuf); 1356168404Spjd goto error; 1357168404Spjd } 1358168404Spjd 1359168404Spjd if (intval == 0) { 1360168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1361168404Spjd "'%s' cannot be zero"), 1362168404Spjd propname); 1363168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1364168404Spjd errbuf); 1365168404Spjd goto error; 1366168404Spjd } 1367168404Spjd break; 1368168404Spjd } 1369168404Spjd } 1370168404Spjd } 1371168404Spjd 1372168404Spjd /* 1373185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1374185029Spjd * enforce rejection of non-UTF8 names. 1375185029Spjd * 1376185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1377185029Spjd * was explicitly not chosen, it is an error. 1378185029Spjd */ 1379185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1380185029Spjd if (nvlist_add_uint64(ret, 1381185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1382185029Spjd (void) no_memory(hdl); 1383185029Spjd goto error; 1384185029Spjd } 1385185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1386185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1387185029Spjd "'%s' must be set 'on' if normalization chosen"), 1388185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1389185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1390185029Spjd goto error; 1391185029Spjd } 1392219089Spjd return (ret); 1393185029Spjd 1394219089Spjderror: 1395219089Spjd nvlist_free(ret); 1396219089Spjd return (NULL); 1397219089Spjd} 1398219089Spjd 1399219089Spjdint 1400219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1401219089Spjd{ 1402219089Spjd uint64_t old_volsize; 1403219089Spjd uint64_t new_volsize; 1404219089Spjd uint64_t old_reservation; 1405219089Spjd uint64_t new_reservation; 1406219089Spjd zfs_prop_t resv_prop; 1407289499Smav nvlist_t *props; 1408219089Spjd 1409185029Spjd /* 1410168404Spjd * If this is an existing volume, and someone is setting the volsize, 1411168404Spjd * make sure that it matches the reservation, or add it if necessary. 1412168404Spjd */ 1413219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1414219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1415219089Spjd return (-1); 1416219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1417289499Smav 1418289499Smav props = fnvlist_alloc(); 1419289499Smav fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1420289499Smav zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); 1421289499Smav 1422289499Smav if ((zvol_volsize_to_reservation(old_volsize, props) != 1423289499Smav old_reservation) || nvlist_exists(nvl, 1424289499Smav zfs_prop_to_name(resv_prop))) { 1425289499Smav fnvlist_free(props); 1426219089Spjd return (0); 1427219089Spjd } 1428219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1429289499Smav &new_volsize) != 0) { 1430289499Smav fnvlist_free(props); 1431219089Spjd return (-1); 1432289499Smav } 1433289499Smav new_reservation = zvol_volsize_to_reservation(new_volsize, props); 1434289499Smav fnvlist_free(props); 1435289499Smav 1436219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1437219089Spjd new_reservation) != 0) { 1438219089Spjd (void) no_memory(zhp->zfs_hdl); 1439219089Spjd return (-1); 1440219089Spjd } 1441219089Spjd return (1); 1442219089Spjd} 1443168404Spjd 1444219089Spjdvoid 1445219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1446219089Spjd char *errbuf) 1447219089Spjd{ 1448219089Spjd switch (err) { 1449185029Spjd 1450219089Spjd case ENOSPC: 1451219089Spjd /* 1452219089Spjd * For quotas and reservations, ENOSPC indicates 1453219089Spjd * something different; setting a quota or reservation 1454219089Spjd * doesn't use any disk space. 1455219089Spjd */ 1456219089Spjd switch (prop) { 1457219089Spjd case ZFS_PROP_QUOTA: 1458219089Spjd case ZFS_PROP_REFQUOTA: 1459219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1460219089Spjd "size is less than current used or " 1461219089Spjd "reserved space")); 1462219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1463219089Spjd break; 1464219089Spjd 1465219089Spjd case ZFS_PROP_RESERVATION: 1466219089Spjd case ZFS_PROP_REFRESERVATION: 1467219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1468219089Spjd "size is greater than available space")); 1469219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1470219089Spjd break; 1471219089Spjd 1472219089Spjd default: 1473219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1474219089Spjd break; 1475168404Spjd } 1476219089Spjd break; 1477219089Spjd 1478219089Spjd case EBUSY: 1479219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1480219089Spjd break; 1481219089Spjd 1482219089Spjd case EROFS: 1483219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1484219089Spjd break; 1485219089Spjd 1486271764Swill case E2BIG: 1487271764Swill zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1488271764Swill "property value too long")); 1489271764Swill (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1490271764Swill break; 1491271764Swill 1492219089Spjd case ENOTSUP: 1493219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1494219089Spjd "pool and or dataset must be upgraded to set this " 1495219089Spjd "property or value")); 1496219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1497219089Spjd break; 1498219089Spjd 1499219089Spjd case ERANGE: 1500274337Sdelphij case EDOM: 1501274337Sdelphij if (prop == ZFS_PROP_COMPRESSION || 1502274337Sdelphij prop == ZFS_PROP_RECORDSIZE) { 1503219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1504219089Spjd "property setting is not allowed on " 1505219089Spjd "bootable datasets")); 1506219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1507289422Smav } else if (prop == ZFS_PROP_CHECKSUM || 1508289422Smav prop == ZFS_PROP_DEDUP) { 1509289422Smav (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1510289422Smav "property setting is not allowed on " 1511289422Smav "root pools")); 1512289422Smav (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1513219089Spjd } else { 1514219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1515219089Spjd } 1516219089Spjd break; 1517219089Spjd 1518219089Spjd case EINVAL: 1519219089Spjd if (prop == ZPROP_INVAL) { 1520219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1521219089Spjd } else { 1522219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1523219089Spjd } 1524219089Spjd break; 1525219089Spjd 1526219089Spjd case EOVERFLOW: 1527219089Spjd /* 1528219089Spjd * This platform can't address a volume this big. 1529219089Spjd */ 1530219089Spjd#ifdef _ILP32 1531219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1532219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1533219089Spjd break; 1534219089Spjd } 1535219089Spjd#endif 1536219089Spjd /* FALLTHROUGH */ 1537219089Spjd default: 1538219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1539168404Spjd } 1540168404Spjd} 1541168404Spjd 1542168404Spjd/* 1543168404Spjd * Given a property name and value, set the property for the given dataset. 1544168404Spjd */ 1545168404Spjdint 1546168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1547168404Spjd{ 1548168404Spjd int ret = -1; 1549168404Spjd char errbuf[1024]; 1550168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1551289497Smav nvlist_t *nvl = NULL; 1552168404Spjd 1553168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1554168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1555168404Spjd zhp->zfs_name); 1556168404Spjd 1557168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1558168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1559168404Spjd (void) no_memory(hdl); 1560168404Spjd goto error; 1561168404Spjd } 1562168404Spjd 1563289497Smav ret = zfs_prop_set_list(zhp, nvl); 1564185029Spjd 1565289497Smaverror: 1566168404Spjd nvlist_free(nvl); 1567289497Smav return (ret); 1568289497Smav} 1569168404Spjd 1570168404Spjd 1571168404Spjd 1572289497Smav/* 1573289497Smav * Given an nvlist of property names and values, set the properties for the 1574289497Smav * given dataset. 1575289497Smav */ 1576289497Smavint 1577289497Smavzfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props) 1578289497Smav{ 1579289497Smav zfs_cmd_t zc = { 0 }; 1580289497Smav int ret = -1; 1581289497Smav prop_changelist_t **cls = NULL; 1582289497Smav int cl_idx; 1583289497Smav char errbuf[1024]; 1584289497Smav libzfs_handle_t *hdl = zhp->zfs_hdl; 1585289497Smav nvlist_t *nvl; 1586289497Smav int nvl_len; 1587289497Smav int added_resv; 1588219089Spjd 1589289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1590289497Smav dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1591289497Smav zhp->zfs_name); 1592168404Spjd 1593289497Smav if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props, 1594289500Smav zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, zhp->zpool_hdl, 1595289500Smav errbuf)) == NULL) 1596168404Spjd goto error; 1597168404Spjd 1598185029Spjd /* 1599289497Smav * We have to check for any extra properties which need to be added 1600289497Smav * before computing the length of the nvlist. 1601185029Spjd */ 1602289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1603289497Smav elem != NULL; 1604289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1605289497Smav if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE && 1606289497Smav (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) { 1607289497Smav goto error; 1608289497Smav } 1609238391Smm } 1610289497Smav /* 1611289497Smav * Check how many properties we're setting and allocate an array to 1612289497Smav * store changelist pointers for postfix(). 1613289497Smav */ 1614289497Smav nvl_len = 0; 1615289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1616289497Smav elem != NULL; 1617289497Smav elem = nvlist_next_nvpair(nvl, elem)) 1618289497Smav nvl_len++; 1619289497Smav if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL) 1620168404Spjd goto error; 1621168404Spjd 1622289497Smav cl_idx = 0; 1623289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1624289497Smav elem != NULL; 1625289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1626289497Smav 1627289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1628289497Smav 1629289497Smav assert(cl_idx < nvl_len); 1630289497Smav /* 1631289497Smav * We don't want to unmount & remount the dataset when changing 1632305460Savg * its canmount property. We only use the changelist logic to 1633305460Savg * unmount when setting canmount=off for a mounted filesystem 1634305460Savg * or when setting canmount=on for an unmounted filesystem. 1635305460Savg * For all other changes to canmount property the filesystem 1636305460Savg * remains the same. 1637289497Smav */ 1638297521Savg if (prop != ZFS_PROP_CANMOUNT || 1639297521Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF && 1640305460Savg zfs_is_mounted(zhp, NULL)) || 1641305460Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_ON && 1642305460Savg !zfs_is_mounted(zhp, NULL))) { 1643289497Smav cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); 1644289497Smav if (cls[cl_idx] == NULL) 1645289497Smav goto error; 1646289497Smav } 1647289497Smav 1648289497Smav if (prop == ZFS_PROP_MOUNTPOINT && 1649289497Smav changelist_haszonedchild(cls[cl_idx])) { 1650289497Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1651289497Smav "child dataset with inherited mountpoint is used " 1652289497Smav "in a non-global zone")); 1653289497Smav ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1654289497Smav goto error; 1655289497Smav } 1656289497Smav 1657289497Smav /* We don't support those properties on FreeBSD. */ 1658289497Smav switch (prop) { 1659289497Smav case ZFS_PROP_DEVICES: 1660289497Smav case ZFS_PROP_ISCSIOPTIONS: 1661289497Smav case ZFS_PROP_XATTR: 1662289497Smav case ZFS_PROP_VSCAN: 1663289497Smav case ZFS_PROP_NBMAND: 1664289497Smav case ZFS_PROP_MLSLABEL: 1665289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1666289497Smav "property '%s' not supported on FreeBSD", 1667289497Smav nvpair_name(elem)); 1668289497Smav ret = zfs_error(hdl, EZFS_PERM, errbuf); 1669289497Smav goto error; 1670289497Smav } 1671289497Smav 1672289497Smav if (cls[cl_idx] != NULL && 1673289497Smav (ret = changelist_prefix(cls[cl_idx])) != 0) 1674289497Smav goto error; 1675289497Smav 1676289497Smav cl_idx++; 1677289497Smav } 1678289497Smav assert(cl_idx == nvl_len); 1679289497Smav 1680168404Spjd /* 1681289497Smav * Execute the corresponding ioctl() to set this list of properties. 1682168404Spjd */ 1683168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1684168404Spjd 1685289497Smav if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || 1686289497Smav (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) 1687168404Spjd goto error; 1688168404Spjd 1689185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1690209962Smm 1691168404Spjd if (ret != 0) { 1692289497Smav /* Get the list of unset properties back and report them. */ 1693289497Smav nvlist_t *errorprops = NULL; 1694289497Smav if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) 1695289497Smav goto error; 1696289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1697289497Smav elem != NULL; 1698289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1699289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1700289497Smav zfs_setprop_error(hdl, prop, errno, errbuf); 1701289497Smav } 1702289497Smav nvlist_free(errorprops); 1703289497Smav 1704219089Spjd if (added_resv && errno == ENOSPC) { 1705219089Spjd /* clean up the volsize property we tried to set */ 1706219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1707219089Spjd ZFS_PROP_VOLSIZE); 1708219089Spjd nvlist_free(nvl); 1709289497Smav nvl = NULL; 1710219089Spjd zcmd_free_nvlists(&zc); 1711289497Smav 1712219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1713219089Spjd goto error; 1714219089Spjd if (nvlist_add_uint64(nvl, 1715219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1716219089Spjd old_volsize) != 0) 1717219089Spjd goto error; 1718219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1719219089Spjd goto error; 1720219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1721168404Spjd } 1722168404Spjd } else { 1723289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1724289497Smav if (cls[cl_idx] != NULL) { 1725289497Smav int clp_err = changelist_postfix(cls[cl_idx]); 1726289497Smav if (clp_err != 0) 1727289497Smav ret = clp_err; 1728289497Smav } 1729289497Smav } 1730185029Spjd 1731168404Spjd /* 1732168404Spjd * Refresh the statistics so the new property value 1733168404Spjd * is reflected. 1734168404Spjd */ 1735185029Spjd if (ret == 0) 1736168404Spjd (void) get_stats(zhp); 1737168404Spjd } 1738168404Spjd 1739168404Spjderror: 1740168404Spjd nvlist_free(nvl); 1741168404Spjd zcmd_free_nvlists(&zc); 1742289497Smav if (cls != NULL) { 1743289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1744289497Smav if (cls[cl_idx] != NULL) 1745289497Smav changelist_free(cls[cl_idx]); 1746289497Smav } 1747289497Smav free(cls); 1748289497Smav } 1749168404Spjd return (ret); 1750168404Spjd} 1751168404Spjd 1752168404Spjd/* 1753219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1754219089Spjd * is TRUE, revert to the received value, if any. 1755168404Spjd */ 1756168404Spjdint 1757219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1758168404Spjd{ 1759168404Spjd zfs_cmd_t zc = { 0 }; 1760168404Spjd int ret; 1761168404Spjd prop_changelist_t *cl; 1762168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1763168404Spjd char errbuf[1024]; 1764168404Spjd zfs_prop_t prop; 1765168404Spjd 1766168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1767168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1768168404Spjd 1769219089Spjd zc.zc_cookie = received; 1770185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1771168404Spjd /* 1772168404Spjd * For user properties, the amount of work we have to do is very 1773168404Spjd * small, so just do it here. 1774168404Spjd */ 1775168404Spjd if (!zfs_prop_user(propname)) { 1776168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1777168404Spjd "invalid property")); 1778168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1779168404Spjd } 1780168404Spjd 1781168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1782168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1783168404Spjd 1784185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1785168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1786168404Spjd 1787168404Spjd return (0); 1788168404Spjd } 1789168404Spjd 1790168404Spjd /* 1791168404Spjd * Verify that this property is inheritable. 1792168404Spjd */ 1793168404Spjd if (zfs_prop_readonly(prop)) 1794168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1795168404Spjd 1796219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1797168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1798168404Spjd 1799168404Spjd /* 1800168404Spjd * Check to see if the value applies to this type 1801168404Spjd */ 1802168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1803168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1804168404Spjd 1805168404Spjd /* 1806219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1807168404Spjd */ 1808168404Spjd propname = zfs_prop_to_name(prop); 1809168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1810168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1811168404Spjd 1812168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1813168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1814168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1815168404Spjd "dataset is used in a non-global zone")); 1816168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1817168404Spjd } 1818168404Spjd 1819168404Spjd /* 1820168404Spjd * Determine datasets which will be affected by this change, if any. 1821168404Spjd */ 1822185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1823168404Spjd return (-1); 1824168404Spjd 1825168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1826168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1827168404Spjd "child dataset with inherited mountpoint is used " 1828168404Spjd "in a non-global zone")); 1829168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1830168404Spjd goto error; 1831168404Spjd } 1832168404Spjd 1833168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1834168404Spjd goto error; 1835168404Spjd 1836185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1837168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1838168404Spjd } else { 1839168404Spjd 1840168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1841168404Spjd goto error; 1842168404Spjd 1843168404Spjd /* 1844168404Spjd * Refresh the statistics so the new property is reflected. 1845168404Spjd */ 1846168404Spjd (void) get_stats(zhp); 1847168404Spjd } 1848168404Spjd 1849168404Spjderror: 1850168404Spjd changelist_free(cl); 1851168404Spjd return (ret); 1852168404Spjd} 1853168404Spjd 1854168404Spjd/* 1855168404Spjd * True DSL properties are stored in an nvlist. The following two functions 1856168404Spjd * extract them appropriately. 1857168404Spjd */ 1858168404Spjdstatic uint64_t 1859168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1860168404Spjd{ 1861168404Spjd nvlist_t *nv; 1862168404Spjd uint64_t value; 1863168404Spjd 1864168404Spjd *source = NULL; 1865168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1866168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1867185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 1868185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1869168404Spjd } else { 1870205198Sdelphij verify(!zhp->zfs_props_table || 1871205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1872168404Spjd value = zfs_prop_default_numeric(prop); 1873168404Spjd *source = ""; 1874168404Spjd } 1875168404Spjd 1876168404Spjd return (value); 1877168404Spjd} 1878168404Spjd 1879289362Smavstatic const char * 1880168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 1881168404Spjd{ 1882168404Spjd nvlist_t *nv; 1883289362Smav const char *value; 1884168404Spjd 1885168404Spjd *source = NULL; 1886168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 1887168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 1888289362Smav value = fnvlist_lookup_string(nv, ZPROP_VALUE); 1889185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 1890168404Spjd } else { 1891205198Sdelphij verify(!zhp->zfs_props_table || 1892205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 1893289362Smav value = zfs_prop_default_string(prop); 1894168404Spjd *source = ""; 1895168404Spjd } 1896168404Spjd 1897168404Spjd return (value); 1898168404Spjd} 1899168404Spjd 1900219089Spjdstatic boolean_t 1901219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 1902219089Spjd{ 1903219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 1904219089Spjd} 1905219089Spjd 1906219089Spjdstatic void 1907219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1908219089Spjd{ 1909219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 1910219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 1911219089Spjd} 1912219089Spjd 1913219089Spjdstatic void 1914219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 1915219089Spjd{ 1916219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 1917219089Spjd *cookie = 0; 1918219089Spjd} 1919219089Spjd 1920168404Spjd/* 1921168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 1922168404Spjd * zfs_prop_get_int() are built using this interface. 1923168404Spjd * 1924168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 1925168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 1926168404Spjd * If they differ from the on-disk values, report the current values and mark 1927168404Spjd * the source "temporary". 1928168404Spjd */ 1929168404Spjdstatic int 1930185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 1931168404Spjd char **source, uint64_t *val) 1932168404Spjd{ 1933185029Spjd zfs_cmd_t zc = { 0 }; 1934185029Spjd nvlist_t *zplprops = NULL; 1935168404Spjd struct mnttab mnt; 1936168404Spjd char *mntopt_on = NULL; 1937168404Spjd char *mntopt_off = NULL; 1938219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 1939168404Spjd 1940168404Spjd *source = NULL; 1941168404Spjd 1942168404Spjd switch (prop) { 1943168404Spjd case ZFS_PROP_ATIME: 1944168404Spjd mntopt_on = MNTOPT_ATIME; 1945168404Spjd mntopt_off = MNTOPT_NOATIME; 1946168404Spjd break; 1947168404Spjd 1948168404Spjd case ZFS_PROP_DEVICES: 1949168404Spjd mntopt_on = MNTOPT_DEVICES; 1950168404Spjd mntopt_off = MNTOPT_NODEVICES; 1951168404Spjd break; 1952168404Spjd 1953168404Spjd case ZFS_PROP_EXEC: 1954168404Spjd mntopt_on = MNTOPT_EXEC; 1955168404Spjd mntopt_off = MNTOPT_NOEXEC; 1956168404Spjd break; 1957168404Spjd 1958168404Spjd case ZFS_PROP_READONLY: 1959168404Spjd mntopt_on = MNTOPT_RO; 1960168404Spjd mntopt_off = MNTOPT_RW; 1961168404Spjd break; 1962168404Spjd 1963168404Spjd case ZFS_PROP_SETUID: 1964168404Spjd mntopt_on = MNTOPT_SETUID; 1965168404Spjd mntopt_off = MNTOPT_NOSETUID; 1966168404Spjd break; 1967168404Spjd 1968168404Spjd case ZFS_PROP_XATTR: 1969168404Spjd mntopt_on = MNTOPT_XATTR; 1970168404Spjd mntopt_off = MNTOPT_NOXATTR; 1971168404Spjd break; 1972185029Spjd 1973185029Spjd case ZFS_PROP_NBMAND: 1974185029Spjd mntopt_on = MNTOPT_NBMAND; 1975185029Spjd mntopt_off = MNTOPT_NONBMAND; 1976185029Spjd break; 1977168404Spjd } 1978168404Spjd 1979168404Spjd /* 1980168404Spjd * Because looking up the mount options is potentially expensive 1981168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 1982168404Spjd * we're looking up a property which requires its presence. 1983168404Spjd */ 1984168404Spjd if (!zhp->zfs_mntcheck && 1985168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 1986209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 1987209962Smm struct mnttab entry; 1988168404Spjd 1989209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 1990209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 1991168404Spjd entry.mnt_mntopts); 1992168404Spjd if (zhp->zfs_mntopts == NULL) 1993168404Spjd return (-1); 1994168404Spjd } 1995168404Spjd 1996168404Spjd zhp->zfs_mntcheck = B_TRUE; 1997168404Spjd } 1998168404Spjd 1999168404Spjd if (zhp->zfs_mntopts == NULL) 2000168404Spjd mnt.mnt_mntopts = ""; 2001168404Spjd else 2002168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 2003168404Spjd 2004168404Spjd switch (prop) { 2005168404Spjd case ZFS_PROP_ATIME: 2006168404Spjd case ZFS_PROP_DEVICES: 2007168404Spjd case ZFS_PROP_EXEC: 2008168404Spjd case ZFS_PROP_READONLY: 2009168404Spjd case ZFS_PROP_SETUID: 2010168404Spjd case ZFS_PROP_XATTR: 2011185029Spjd case ZFS_PROP_NBMAND: 2012168404Spjd *val = getprop_uint64(zhp, prop, source); 2013168404Spjd 2014219089Spjd if (received) 2015219089Spjd break; 2016219089Spjd 2017168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 2018168404Spjd *val = B_TRUE; 2019168404Spjd if (src) 2020185029Spjd *src = ZPROP_SRC_TEMPORARY; 2021168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 2022168404Spjd *val = B_FALSE; 2023168404Spjd if (src) 2024185029Spjd *src = ZPROP_SRC_TEMPORARY; 2025168404Spjd } 2026168404Spjd break; 2027168404Spjd 2028168404Spjd case ZFS_PROP_CANMOUNT: 2029219089Spjd case ZFS_PROP_VOLSIZE: 2030168404Spjd case ZFS_PROP_QUOTA: 2031185029Spjd case ZFS_PROP_REFQUOTA: 2032168404Spjd case ZFS_PROP_RESERVATION: 2033185029Spjd case ZFS_PROP_REFRESERVATION: 2034264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2035264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2036264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2037264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2038168404Spjd *val = getprop_uint64(zhp, prop, source); 2039219089Spjd 2040219089Spjd if (*source == NULL) { 2041219089Spjd /* not default, must be local */ 2042168404Spjd *source = zhp->zfs_name; 2043219089Spjd } 2044168404Spjd break; 2045168404Spjd 2046168404Spjd case ZFS_PROP_MOUNTED: 2047168404Spjd *val = (zhp->zfs_mntopts != NULL); 2048168404Spjd break; 2049168404Spjd 2050168404Spjd case ZFS_PROP_NUMCLONES: 2051168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 2052168404Spjd break; 2053168404Spjd 2054185029Spjd case ZFS_PROP_VERSION: 2055185029Spjd case ZFS_PROP_NORMALIZE: 2056185029Spjd case ZFS_PROP_UTF8ONLY: 2057185029Spjd case ZFS_PROP_CASE: 2058185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 2059185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 2060185029Spjd return (-1); 2061185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2062185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 2063185029Spjd zcmd_free_nvlists(&zc); 2064219089Spjd return (-1); 2065185029Spjd } 2066185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 2067185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 2068185029Spjd val) != 0) { 2069185029Spjd zcmd_free_nvlists(&zc); 2070219089Spjd return (-1); 2071185029Spjd } 2072296528Smav nvlist_free(zplprops); 2073185029Spjd zcmd_free_nvlists(&zc); 2074185029Spjd break; 2075185029Spjd 2076253819Sdelphij case ZFS_PROP_INCONSISTENT: 2077253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 2078253819Sdelphij break; 2079253819Sdelphij 2080168404Spjd default: 2081185029Spjd switch (zfs_prop_get_type(prop)) { 2082185029Spjd case PROP_TYPE_NUMBER: 2083185029Spjd case PROP_TYPE_INDEX: 2084185029Spjd *val = getprop_uint64(zhp, prop, source); 2085185029Spjd /* 2086209962Smm * If we tried to use a default value for a 2087185029Spjd * readonly property, it means that it was not 2088219089Spjd * present. 2089185029Spjd */ 2090185029Spjd if (zfs_prop_readonly(prop) && 2091219089Spjd *source != NULL && (*source)[0] == '\0') { 2092219089Spjd *source = NULL; 2093185029Spjd } 2094185029Spjd break; 2095185029Spjd 2096185029Spjd case PROP_TYPE_STRING: 2097185029Spjd default: 2098185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2099185029Spjd "cannot get non-numeric property")); 2100185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2101185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2102185029Spjd } 2103168404Spjd } 2104168404Spjd 2105168404Spjd return (0); 2106168404Spjd} 2107168404Spjd 2108168404Spjd/* 2109168404Spjd * Calculate the source type, given the raw source string. 2110168404Spjd */ 2111168404Spjdstatic void 2112185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2113168404Spjd char *statbuf, size_t statlen) 2114168404Spjd{ 2115185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2116168404Spjd return; 2117168404Spjd 2118168404Spjd if (source == NULL) { 2119185029Spjd *srctype = ZPROP_SRC_NONE; 2120168404Spjd } else if (source[0] == '\0') { 2121185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2122219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2123219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2124168404Spjd } else { 2125168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2126185029Spjd *srctype = ZPROP_SRC_LOCAL; 2127168404Spjd } else { 2128168404Spjd (void) strlcpy(statbuf, source, statlen); 2129185029Spjd *srctype = ZPROP_SRC_INHERITED; 2130168404Spjd } 2131168404Spjd } 2132168404Spjd 2133168404Spjd} 2134168404Spjd 2135219089Spjdint 2136219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2137219089Spjd size_t proplen, boolean_t literal) 2138219089Spjd{ 2139219089Spjd zfs_prop_t prop; 2140219089Spjd int err = 0; 2141219089Spjd 2142219089Spjd if (zhp->zfs_recvd_props == NULL) 2143219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2144219089Spjd return (-1); 2145219089Spjd 2146219089Spjd prop = zfs_name_to_prop(propname); 2147219089Spjd 2148219089Spjd if (prop != ZPROP_INVAL) { 2149219089Spjd uint64_t cookie; 2150219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2151219089Spjd return (-1); 2152219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2153219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2154219089Spjd NULL, NULL, 0, literal); 2155219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2156219089Spjd } else { 2157219089Spjd nvlist_t *propval; 2158219089Spjd char *recvdval; 2159219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2160219089Spjd propname, &propval) != 0) 2161219089Spjd return (-1); 2162219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2163219089Spjd &recvdval) == 0); 2164219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2165219089Spjd } 2166219089Spjd 2167219089Spjd return (err == 0 ? 0 : -1); 2168219089Spjd} 2169219089Spjd 2170228103Smmstatic int 2171228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2172228103Smm{ 2173228103Smm nvlist_t *value; 2174228103Smm nvpair_t *pair; 2175228103Smm 2176228103Smm value = zfs_get_clones_nvl(zhp); 2177228103Smm if (value == NULL) 2178228103Smm return (-1); 2179228103Smm 2180228103Smm propbuf[0] = '\0'; 2181228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2182228103Smm pair = nvlist_next_nvpair(value, pair)) { 2183228103Smm if (propbuf[0] != '\0') 2184228103Smm (void) strlcat(propbuf, ",", proplen); 2185228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2186228103Smm } 2187228103Smm 2188228103Smm return (0); 2189228103Smm} 2190228103Smm 2191228103Smmstruct get_clones_arg { 2192228103Smm uint64_t numclones; 2193228103Smm nvlist_t *value; 2194228103Smm const char *origin; 2195228103Smm char buf[ZFS_MAXNAMELEN]; 2196228103Smm}; 2197228103Smm 2198228103Smmint 2199228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2200228103Smm{ 2201228103Smm struct get_clones_arg *gca = arg; 2202228103Smm 2203228103Smm if (gca->numclones == 0) { 2204228103Smm zfs_close(zhp); 2205228103Smm return (0); 2206228103Smm } 2207228103Smm 2208228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2209228103Smm NULL, NULL, 0, B_TRUE) != 0) 2210228103Smm goto out; 2211228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2212248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2213228103Smm gca->numclones--; 2214228103Smm } 2215228103Smm 2216228103Smmout: 2217228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2218228103Smm zfs_close(zhp); 2219228103Smm return (0); 2220228103Smm} 2221228103Smm 2222228103Smmnvlist_t * 2223228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2224228103Smm{ 2225228103Smm nvlist_t *nv, *value; 2226228103Smm 2227228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2228228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2229228103Smm struct get_clones_arg gca; 2230228103Smm 2231228103Smm /* 2232228103Smm * if this is a snapshot, then the kernel wasn't able 2233228103Smm * to get the clones. Do it by slowly iterating. 2234228103Smm */ 2235228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2236228103Smm return (NULL); 2237228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2238228103Smm return (NULL); 2239228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2240228103Smm nvlist_free(nv); 2241228103Smm return (NULL); 2242228103Smm } 2243228103Smm 2244228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2245228103Smm gca.value = value; 2246228103Smm gca.origin = zhp->zfs_name; 2247228103Smm 2248228103Smm if (gca.numclones != 0) { 2249228103Smm zfs_handle_t *root; 2250228103Smm char pool[ZFS_MAXNAMELEN]; 2251228103Smm char *cp = pool; 2252228103Smm 2253228103Smm /* get the pool name */ 2254228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2255228103Smm (void) strsep(&cp, "/@"); 2256228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2257228103Smm ZFS_TYPE_FILESYSTEM); 2258228103Smm 2259228103Smm (void) get_clones_cb(root, &gca); 2260228103Smm } 2261228103Smm 2262228103Smm if (gca.numclones != 0 || 2263228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2264228103Smm nvlist_add_nvlist(zhp->zfs_props, 2265228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2266228103Smm nvlist_free(nv); 2267228103Smm nvlist_free(value); 2268228103Smm return (NULL); 2269228103Smm } 2270228103Smm nvlist_free(nv); 2271228103Smm nvlist_free(value); 2272228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2273228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2274228103Smm } 2275228103Smm 2276228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2277228103Smm 2278228103Smm return (value); 2279228103Smm} 2280228103Smm 2281168404Spjd/* 2282168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2283168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2284168404Spjd * human-readable form. 2285168404Spjd * 2286168404Spjd * Returns 0 on success, or -1 on error. 2287168404Spjd */ 2288168404Spjdint 2289168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2290185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2291168404Spjd{ 2292168404Spjd char *source = NULL; 2293168404Spjd uint64_t val; 2294289362Smav const char *str; 2295168404Spjd const char *strval; 2296219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2297168404Spjd 2298168404Spjd /* 2299168404Spjd * Check to see if this property applies to our object 2300168404Spjd */ 2301168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2302168404Spjd return (-1); 2303168404Spjd 2304219089Spjd if (received && zfs_prop_readonly(prop)) 2305219089Spjd return (-1); 2306219089Spjd 2307168404Spjd if (src) 2308185029Spjd *src = ZPROP_SRC_NONE; 2309168404Spjd 2310168404Spjd switch (prop) { 2311168404Spjd case ZFS_PROP_CREATION: 2312168404Spjd /* 2313168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2314168404Spjd * this into a string unless 'literal' is specified. 2315168404Spjd */ 2316168404Spjd { 2317168404Spjd val = getprop_uint64(zhp, prop, &source); 2318168404Spjd time_t time = (time_t)val; 2319168404Spjd struct tm t; 2320168404Spjd 2321168404Spjd if (literal || 2322168404Spjd localtime_r(&time, &t) == NULL || 2323168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2324168404Spjd &t) == 0) 2325168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2326168404Spjd } 2327168404Spjd break; 2328168404Spjd 2329168404Spjd case ZFS_PROP_MOUNTPOINT: 2330168404Spjd /* 2331168404Spjd * Getting the precise mountpoint can be tricky. 2332168404Spjd * 2333168404Spjd * - for 'none' or 'legacy', return those values. 2334168404Spjd * - for inherited mountpoints, we want to take everything 2335168404Spjd * after our ancestor and append it to the inherited value. 2336168404Spjd * 2337168404Spjd * If the pool has an alternate root, we want to prepend that 2338168404Spjd * root to any values we return. 2339168404Spjd */ 2340185029Spjd 2341168404Spjd str = getprop_string(zhp, prop, &source); 2342168404Spjd 2343185029Spjd if (str[0] == '/') { 2344185029Spjd char buf[MAXPATHLEN]; 2345185029Spjd char *root = buf; 2346219089Spjd const char *relpath; 2347168404Spjd 2348219089Spjd /* 2349219089Spjd * If we inherit the mountpoint, even from a dataset 2350219089Spjd * with a received value, the source will be the path of 2351219089Spjd * the dataset we inherit from. If source is 2352219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2353219089Spjd * inherited. 2354219089Spjd */ 2355219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2356219089Spjd relpath = ""; 2357219089Spjd } else { 2358219089Spjd relpath = zhp->zfs_name + strlen(source); 2359219089Spjd if (relpath[0] == '/') 2360219089Spjd relpath++; 2361219089Spjd } 2362185029Spjd 2363185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2364263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2365263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2366185029Spjd root[0] = '\0'; 2367185029Spjd /* 2368185029Spjd * Special case an alternate root of '/'. This will 2369185029Spjd * avoid having multiple leading slashes in the 2370185029Spjd * mountpoint path. 2371185029Spjd */ 2372185029Spjd if (strcmp(root, "/") == 0) 2373185029Spjd root++; 2374185029Spjd 2375185029Spjd /* 2376185029Spjd * If the mountpoint is '/' then skip over this 2377185029Spjd * if we are obtaining either an alternate root or 2378185029Spjd * an inherited mountpoint. 2379185029Spjd */ 2380185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2381185029Spjd relpath[0] != '\0')) 2382168404Spjd str++; 2383168404Spjd 2384168404Spjd if (relpath[0] == '\0') 2385168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2386168404Spjd root, str); 2387168404Spjd else 2388168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2389168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2390168404Spjd relpath); 2391168404Spjd } else { 2392168404Spjd /* 'legacy' or 'none' */ 2393168404Spjd (void) strlcpy(propbuf, str, proplen); 2394168404Spjd } 2395168404Spjd 2396168404Spjd break; 2397168404Spjd 2398168404Spjd case ZFS_PROP_ORIGIN: 2399289362Smav str = getprop_string(zhp, prop, &source); 2400289362Smav if (str == NULL) 2401168404Spjd return (-1); 2402289362Smav (void) strlcpy(propbuf, str, proplen); 2403168404Spjd break; 2404168404Spjd 2405228103Smm case ZFS_PROP_CLONES: 2406228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2407228103Smm return (-1); 2408228103Smm break; 2409228103Smm 2410168404Spjd case ZFS_PROP_QUOTA: 2411185029Spjd case ZFS_PROP_REFQUOTA: 2412168404Spjd case ZFS_PROP_RESERVATION: 2413185029Spjd case ZFS_PROP_REFRESERVATION: 2414185029Spjd 2415168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2416168404Spjd return (-1); 2417168404Spjd 2418168404Spjd /* 2419168404Spjd * If quota or reservation is 0, we translate this into 'none' 2420168404Spjd * (unless literal is set), and indicate that it's the default 2421168404Spjd * value. Otherwise, we print the number nicely and indicate 2422168404Spjd * that its set locally. 2423168404Spjd */ 2424168404Spjd if (val == 0) { 2425168404Spjd if (literal) 2426168404Spjd (void) strlcpy(propbuf, "0", proplen); 2427168404Spjd else 2428168404Spjd (void) strlcpy(propbuf, "none", proplen); 2429168404Spjd } else { 2430168404Spjd if (literal) 2431168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2432168404Spjd (u_longlong_t)val); 2433168404Spjd else 2434168404Spjd zfs_nicenum(val, propbuf, proplen); 2435168404Spjd } 2436168404Spjd break; 2437168404Spjd 2438264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2439264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2440264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2441264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2442264835Sdelphij 2443264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2444264835Sdelphij return (-1); 2445264835Sdelphij 2446264835Sdelphij /* 2447264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2448264835Sdelphij * literal is set), and indicate that it's the default value. 2449264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2450264835Sdelphij * set locally. 2451264835Sdelphij */ 2452264835Sdelphij if (literal) { 2453264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2454264835Sdelphij (u_longlong_t)val); 2455264835Sdelphij } else if (val == UINT64_MAX) { 2456264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2457264835Sdelphij } else { 2458264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2459264835Sdelphij } 2460264835Sdelphij break; 2461264835Sdelphij 2462223623Smm case ZFS_PROP_REFRATIO: 2463168404Spjd case ZFS_PROP_COMPRESSRATIO: 2464168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2465168404Spjd return (-1); 2466219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2467219089Spjd (u_longlong_t)(val / 100), 2468219089Spjd (u_longlong_t)(val % 100)); 2469168404Spjd break; 2470168404Spjd 2471168404Spjd case ZFS_PROP_TYPE: 2472168404Spjd switch (zhp->zfs_type) { 2473168404Spjd case ZFS_TYPE_FILESYSTEM: 2474168404Spjd str = "filesystem"; 2475168404Spjd break; 2476168404Spjd case ZFS_TYPE_VOLUME: 2477168404Spjd str = "volume"; 2478168404Spjd break; 2479168404Spjd case ZFS_TYPE_SNAPSHOT: 2480168404Spjd str = "snapshot"; 2481168404Spjd break; 2482260183Sdelphij case ZFS_TYPE_BOOKMARK: 2483260183Sdelphij str = "bookmark"; 2484260183Sdelphij break; 2485168404Spjd default: 2486168404Spjd abort(); 2487168404Spjd } 2488168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2489168404Spjd break; 2490168404Spjd 2491168404Spjd case ZFS_PROP_MOUNTED: 2492168404Spjd /* 2493168404Spjd * The 'mounted' property is a pseudo-property that described 2494168404Spjd * whether the filesystem is currently mounted. Even though 2495168404Spjd * it's a boolean value, the typical values of "on" and "off" 2496168404Spjd * don't make sense, so we translate to "yes" and "no". 2497168404Spjd */ 2498168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2499168404Spjd src, &source, &val) != 0) 2500168404Spjd return (-1); 2501168404Spjd if (val) 2502168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2503168404Spjd else 2504168404Spjd (void) strlcpy(propbuf, "no", proplen); 2505168404Spjd break; 2506168404Spjd 2507168404Spjd case ZFS_PROP_NAME: 2508168404Spjd /* 2509168404Spjd * The 'name' property is a pseudo-property derived from the 2510168404Spjd * dataset name. It is presented as a real property to simplify 2511168404Spjd * consumers. 2512168404Spjd */ 2513168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2514168404Spjd break; 2515168404Spjd 2516219089Spjd case ZFS_PROP_MLSLABEL: 2517219089Spjd { 2518277300Ssmh#ifdef illumos 2519219089Spjd m_label_t *new_sl = NULL; 2520219089Spjd char *ascii = NULL; /* human readable label */ 2521219089Spjd 2522219089Spjd (void) strlcpy(propbuf, 2523219089Spjd getprop_string(zhp, prop, &source), proplen); 2524219089Spjd 2525219089Spjd if (literal || (strcasecmp(propbuf, 2526219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2527219089Spjd break; 2528219089Spjd 2529219089Spjd /* 2530219089Spjd * Try to translate the internal hex string to 2531219089Spjd * human-readable output. If there are any 2532219089Spjd * problems just use the hex string. 2533219089Spjd */ 2534219089Spjd 2535219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2536219089Spjd L_NO_CORRECTION, NULL) == -1) { 2537219089Spjd m_label_free(new_sl); 2538219089Spjd break; 2539219089Spjd } 2540219089Spjd 2541219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2542219089Spjd DEF_NAMES) != 0) { 2543219089Spjd if (ascii) 2544219089Spjd free(ascii); 2545219089Spjd m_label_free(new_sl); 2546219089Spjd break; 2547219089Spjd } 2548219089Spjd m_label_free(new_sl); 2549219089Spjd 2550219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2551219089Spjd free(ascii); 2552277300Ssmh#else /* !illumos */ 2553219089Spjd propbuf[0] = '\0'; 2554277300Ssmh#endif /* illumos */ 2555219089Spjd } 2556219089Spjd break; 2557219089Spjd 2558236705Smm case ZFS_PROP_GUID: 2559236705Smm /* 2560236705Smm * GUIDs are stored as numbers, but they are identifiers. 2561236705Smm * We don't want them to be pretty printed, because pretty 2562236705Smm * printing mangles the ID into a truncated and useless value. 2563236705Smm */ 2564236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2565236705Smm return (-1); 2566236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2567236705Smm break; 2568236705Smm 2569168404Spjd default: 2570185029Spjd switch (zfs_prop_get_type(prop)) { 2571185029Spjd case PROP_TYPE_NUMBER: 2572185029Spjd if (get_numeric_property(zhp, prop, src, 2573185029Spjd &source, &val) != 0) 2574185029Spjd return (-1); 2575185029Spjd if (literal) 2576185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2577185029Spjd (u_longlong_t)val); 2578185029Spjd else 2579185029Spjd zfs_nicenum(val, propbuf, proplen); 2580185029Spjd break; 2581185029Spjd 2582185029Spjd case PROP_TYPE_STRING: 2583289362Smav str = getprop_string(zhp, prop, &source); 2584289362Smav if (str == NULL) 2585289362Smav return (-1); 2586289362Smav (void) strlcpy(propbuf, str, proplen); 2587185029Spjd break; 2588185029Spjd 2589185029Spjd case PROP_TYPE_INDEX: 2590185029Spjd if (get_numeric_property(zhp, prop, src, 2591185029Spjd &source, &val) != 0) 2592185029Spjd return (-1); 2593185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2594185029Spjd return (-1); 2595185029Spjd (void) strlcpy(propbuf, strval, proplen); 2596185029Spjd break; 2597185029Spjd 2598185029Spjd default: 2599185029Spjd abort(); 2600185029Spjd } 2601168404Spjd } 2602168404Spjd 2603168404Spjd get_source(zhp, src, source, statbuf, statlen); 2604168404Spjd 2605168404Spjd return (0); 2606168404Spjd} 2607168404Spjd 2608168404Spjd/* 2609168404Spjd * Utility function to get the given numeric property. Does no validation that 2610168404Spjd * the given property is the appropriate type; should only be used with 2611168404Spjd * hard-coded property types. 2612168404Spjd */ 2613168404Spjduint64_t 2614168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2615168404Spjd{ 2616168404Spjd char *source; 2617168404Spjd uint64_t val; 2618168404Spjd 2619185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2620168404Spjd 2621168404Spjd return (val); 2622168404Spjd} 2623168404Spjd 2624185029Spjdint 2625185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2626185029Spjd{ 2627185029Spjd char buf[64]; 2628185029Spjd 2629209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2630185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2631185029Spjd} 2632185029Spjd 2633168404Spjd/* 2634168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2635168404Spjd */ 2636168404Spjdint 2637168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2638185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2639168404Spjd{ 2640168404Spjd char *source; 2641168404Spjd 2642168404Spjd /* 2643168404Spjd * Check to see if this property applies to our object 2644168404Spjd */ 2645185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2646168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2647168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2648168404Spjd zfs_prop_to_name(prop))); 2649185029Spjd } 2650168404Spjd 2651168404Spjd if (src) 2652185029Spjd *src = ZPROP_SRC_NONE; 2653168404Spjd 2654168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2655168404Spjd return (-1); 2656168404Spjd 2657168404Spjd get_source(zhp, src, source, statbuf, statlen); 2658168404Spjd 2659168404Spjd return (0); 2660168404Spjd} 2661168404Spjd 2662209962Smmstatic int 2663209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2664209962Smm char **domainp, idmap_rid_t *ridp) 2665209962Smm{ 2666277300Ssmh#ifdef illumos 2667209962Smm idmap_get_handle_t *get_hdl = NULL; 2668209962Smm idmap_stat status; 2669209962Smm int err = EINVAL; 2670209962Smm 2671219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2672209962Smm goto out; 2673209962Smm 2674209962Smm if (isuser) { 2675209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2676209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2677209962Smm } else { 2678209962Smm err = idmap_get_sidbygid(get_hdl, id, 2679209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2680209962Smm } 2681209962Smm if (err == IDMAP_SUCCESS && 2682209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2683209962Smm status == IDMAP_SUCCESS) 2684209962Smm err = 0; 2685209962Smm else 2686209962Smm err = EINVAL; 2687209962Smmout: 2688209962Smm if (get_hdl) 2689209962Smm idmap_get_destroy(get_hdl); 2690209962Smm return (err); 2691277300Ssmh#else /* !illumos */ 2692209962Smm assert(!"invalid code path"); 2693264852Ssmh return (EINVAL); // silence compiler warning 2694277300Ssmh#endif /* illumos */ 2695209962Smm} 2696209962Smm 2697168404Spjd/* 2698209962Smm * convert the propname into parameters needed by kernel 2699209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2700209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2701209962Smm */ 2702209962Smmstatic int 2703209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2704209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2705209962Smm{ 2706209962Smm zfs_userquota_prop_t type; 2707209962Smm char *cp, *end; 2708209962Smm char *numericsid = NULL; 2709209962Smm boolean_t isuser; 2710209962Smm 2711209962Smm domain[0] = '\0'; 2712275579Sdelphij *ridp = 0; 2713209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2714209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2715209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2716209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2717209962Smm break; 2718209962Smm } 2719209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2720209962Smm return (EINVAL); 2721209962Smm *typep = type; 2722209962Smm 2723209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2724209962Smm type == ZFS_PROP_USERUSED); 2725209962Smm 2726209962Smm cp = strchr(propname, '@') + 1; 2727209962Smm 2728209962Smm if (strchr(cp, '@')) { 2729277300Ssmh#ifdef illumos 2730209962Smm /* 2731209962Smm * It's a SID name (eg "user@domain") that needs to be 2732209962Smm * turned into S-1-domainID-RID. 2733209962Smm */ 2734275579Sdelphij int flag = 0; 2735275579Sdelphij idmap_stat stat, map_stat; 2736275579Sdelphij uid_t pid; 2737275579Sdelphij idmap_rid_t rid; 2738275579Sdelphij idmap_get_handle_t *gh = NULL; 2739275579Sdelphij 2740275579Sdelphij stat = idmap_get_create(&gh); 2741275579Sdelphij if (stat != IDMAP_SUCCESS) { 2742275579Sdelphij idmap_get_destroy(gh); 2743275579Sdelphij return (ENOMEM); 2744275579Sdelphij } 2745209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2746209962Smm return (ENOENT); 2747209962Smm if (isuser) { 2748275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2749275579Sdelphij if (stat < 0) 2750275579Sdelphij return (ENOENT); 2751275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2752275579Sdelphij &rid, &map_stat); 2753209962Smm } else { 2754275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2755275579Sdelphij if (stat < 0) 2756275579Sdelphij return (ENOENT); 2757275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2758275579Sdelphij &rid, &map_stat); 2759209962Smm } 2760275579Sdelphij if (stat < 0) { 2761275579Sdelphij idmap_get_destroy(gh); 2762209962Smm return (ENOENT); 2763209962Smm } 2764275579Sdelphij stat = idmap_get_mappings(gh); 2765275579Sdelphij idmap_get_destroy(gh); 2766275579Sdelphij 2767275579Sdelphij if (stat < 0) { 2768275579Sdelphij return (ENOENT); 2769275579Sdelphij } 2770209962Smm if (numericsid == NULL) 2771209962Smm return (ENOENT); 2772209962Smm cp = numericsid; 2773275579Sdelphij *ridp = rid; 2774209962Smm /* will be further decoded below */ 2775277300Ssmh#else /* !illumos */ 2776219089Spjd return (ENOENT); 2777277300Ssmh#endif /* illumos */ 2778209962Smm } 2779209962Smm 2780209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 2781209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 2782209962Smm (void) strlcpy(domain, cp, domainlen); 2783209962Smm errno = 0; 2784275579Sdelphij if (*ridp == 0) { 2785275579Sdelphij cp = strrchr(domain, '-'); 2786275579Sdelphij *cp = '\0'; 2787275579Sdelphij cp++; 2788275579Sdelphij *ridp = strtoull(cp, &end, 10); 2789275579Sdelphij } else { 2790275579Sdelphij end = ""; 2791275579Sdelphij } 2792209962Smm if (numericsid) { 2793209962Smm free(numericsid); 2794209962Smm numericsid = NULL; 2795209962Smm } 2796209962Smm if (errno != 0 || *end != '\0') 2797209962Smm return (EINVAL); 2798209962Smm } else if (!isdigit(*cp)) { 2799209962Smm /* 2800209962Smm * It's a user/group name (eg "user") that needs to be 2801209962Smm * turned into a uid/gid 2802209962Smm */ 2803209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2804209962Smm return (ENOENT); 2805209962Smm if (isuser) { 2806209962Smm struct passwd *pw; 2807209962Smm pw = getpwnam(cp); 2808209962Smm if (pw == NULL) 2809209962Smm return (ENOENT); 2810209962Smm *ridp = pw->pw_uid; 2811209962Smm } else { 2812209962Smm struct group *gr; 2813209962Smm gr = getgrnam(cp); 2814209962Smm if (gr == NULL) 2815209962Smm return (ENOENT); 2816209962Smm *ridp = gr->gr_gid; 2817209962Smm } 2818209962Smm } else { 2819209962Smm /* It's a user/group ID (eg "12345"). */ 2820209962Smm uid_t id = strtoul(cp, &end, 10); 2821209962Smm idmap_rid_t rid; 2822209962Smm char *mapdomain; 2823209962Smm 2824209962Smm if (*end != '\0') 2825209962Smm return (EINVAL); 2826209962Smm if (id > MAXUID) { 2827209962Smm /* It's an ephemeral ID. */ 2828209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 2829209962Smm &mapdomain, &rid) != 0) 2830209962Smm return (ENOENT); 2831209962Smm (void) strlcpy(domain, mapdomain, domainlen); 2832209962Smm *ridp = rid; 2833209962Smm } else { 2834209962Smm *ridp = id; 2835209962Smm } 2836209962Smm } 2837209962Smm 2838209962Smm ASSERT3P(numericsid, ==, NULL); 2839209962Smm return (0); 2840209962Smm} 2841209962Smm 2842209962Smmstatic int 2843209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 2844209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 2845209962Smm{ 2846209962Smm int err; 2847209962Smm zfs_cmd_t zc = { 0 }; 2848209962Smm 2849228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2850209962Smm 2851209962Smm err = userquota_propname_decode(propname, 2852209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 2853209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 2854209962Smm zc.zc_objset_type = *typep; 2855209962Smm if (err) 2856209962Smm return (err); 2857209962Smm 2858209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 2859209962Smm if (err) 2860209962Smm return (err); 2861209962Smm 2862209962Smm *propvalue = zc.zc_cookie; 2863209962Smm return (0); 2864209962Smm} 2865209962Smm 2866209962Smmint 2867209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 2868209962Smm uint64_t *propvalue) 2869209962Smm{ 2870209962Smm zfs_userquota_prop_t type; 2871209962Smm 2872209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 2873209962Smm &type)); 2874209962Smm} 2875209962Smm 2876209962Smmint 2877209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 2878209962Smm char *propbuf, int proplen, boolean_t literal) 2879209962Smm{ 2880209962Smm int err; 2881209962Smm uint64_t propvalue; 2882209962Smm zfs_userquota_prop_t type; 2883209962Smm 2884209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 2885209962Smm &type); 2886209962Smm 2887209962Smm if (err) 2888209962Smm return (err); 2889209962Smm 2890209962Smm if (literal) { 2891209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2892209962Smm } else if (propvalue == 0 && 2893209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 2894209962Smm (void) strlcpy(propbuf, "none", proplen); 2895209962Smm } else { 2896209962Smm zfs_nicenum(propvalue, propbuf, proplen); 2897209962Smm } 2898209962Smm return (0); 2899209962Smm} 2900209962Smm 2901228103Smmint 2902228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 2903228103Smm uint64_t *propvalue) 2904168404Spjd{ 2905228103Smm int err; 2906228103Smm zfs_cmd_t zc = { 0 }; 2907228103Smm const char *snapname; 2908168404Spjd 2909228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2910168404Spjd 2911228103Smm snapname = strchr(propname, '@') + 1; 2912228103Smm if (strchr(snapname, '@')) { 2913228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 2914228103Smm } else { 2915228103Smm /* snapname is the short name, append it to zhp's fsname */ 2916228103Smm char *cp; 2917209962Smm 2918228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 2919228103Smm sizeof (zc.zc_value)); 2920228103Smm cp = strchr(zc.zc_value, '@'); 2921228103Smm if (cp != NULL) 2922228103Smm *cp = '\0'; 2923228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 2924228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 2925228103Smm } 2926209962Smm 2927228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 2928228103Smm if (err) 2929228103Smm return (err); 2930228103Smm 2931228103Smm *propvalue = zc.zc_cookie; 2932228103Smm return (0); 2933209962Smm} 2934209962Smm 2935168404Spjdint 2936228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 2937228103Smm char *propbuf, int proplen, boolean_t literal) 2938168404Spjd{ 2939228103Smm int err; 2940228103Smm uint64_t propvalue; 2941168404Spjd 2942228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 2943185029Spjd 2944228103Smm if (err) 2945228103Smm return (err); 2946209962Smm 2947228103Smm if (literal) { 2948228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 2949228103Smm } else { 2950228103Smm zfs_nicenum(propvalue, propbuf, proplen); 2951168404Spjd } 2952228103Smm return (0); 2953168404Spjd} 2954168404Spjd 2955168404Spjd/* 2956228103Smm * Returns the name of the given zfs handle. 2957168404Spjd */ 2958228103Smmconst char * 2959228103Smmzfs_get_name(const zfs_handle_t *zhp) 2960168404Spjd{ 2961228103Smm return (zhp->zfs_name); 2962228103Smm} 2963168404Spjd 2964228103Smm/* 2965228103Smm * Returns the type of the given zfs handle. 2966228103Smm */ 2967228103Smmzfs_type_t 2968228103Smmzfs_get_type(const zfs_handle_t *zhp) 2969228103Smm{ 2970228103Smm return (zhp->zfs_type); 2971168404Spjd} 2972168404Spjd 2973168404Spjd/* 2974219089Spjd * Is one dataset name a child dataset of another? 2975219089Spjd * 2976219089Spjd * Needs to handle these cases: 2977219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 2978219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 2979219089Spjd * Descendant? No. No. No. Yes. 2980219089Spjd */ 2981219089Spjdstatic boolean_t 2982219089Spjdis_descendant(const char *ds1, const char *ds2) 2983219089Spjd{ 2984219089Spjd size_t d1len = strlen(ds1); 2985219089Spjd 2986219089Spjd /* ds2 can't be a descendant if it's smaller */ 2987219089Spjd if (strlen(ds2) < d1len) 2988219089Spjd return (B_FALSE); 2989219089Spjd 2990219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 2991219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 2992219089Spjd} 2993219089Spjd 2994219089Spjd/* 2995168404Spjd * Given a complete name, return just the portion that refers to the parent. 2996228103Smm * Will return -1 if there is no parent (path is just the name of the 2997228103Smm * pool). 2998168404Spjd */ 2999168404Spjdstatic int 3000168404Spjdparent_name(const char *path, char *buf, size_t buflen) 3001168404Spjd{ 3002228103Smm char *slashp; 3003168404Spjd 3004228103Smm (void) strlcpy(buf, path, buflen); 3005228103Smm 3006228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 3007168404Spjd return (-1); 3008228103Smm *slashp = '\0'; 3009168404Spjd 3010168404Spjd return (0); 3011168404Spjd} 3012168404Spjd 3013168404Spjd/* 3014185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 3015185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 3016185029Spjd * closest existing ancestor for the given path. In prefixlen return the 3017185029Spjd * length of already existing prefix of the given path. We also fetch the 3018185029Spjd * 'zoned' property, which is used to validate property settings when creating 3019185029Spjd * new datasets. 3020168404Spjd */ 3021168404Spjdstatic int 3022185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 3023185029Spjd boolean_t accept_ancestor, int *prefixlen) 3024168404Spjd{ 3025168404Spjd zfs_cmd_t zc = { 0 }; 3026168404Spjd char parent[ZFS_MAXNAMELEN]; 3027168404Spjd char *slash; 3028168404Spjd zfs_handle_t *zhp; 3029168404Spjd char errbuf[1024]; 3030219089Spjd uint64_t is_zoned; 3031168404Spjd 3032209962Smm (void) snprintf(errbuf, sizeof (errbuf), 3033209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 3034168404Spjd 3035168404Spjd /* get parent, and check to see if this is just a pool */ 3036168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 3037168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3038168404Spjd "missing dataset name")); 3039168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3040168404Spjd } 3041168404Spjd 3042168404Spjd /* check to see if the pool exists */ 3043168404Spjd if ((slash = strchr(parent, '/')) == NULL) 3044168404Spjd slash = parent + strlen(parent); 3045168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 3046168404Spjd zc.zc_name[slash - parent] = '\0'; 3047168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 3048168404Spjd errno == ENOENT) { 3049168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3050168404Spjd "no such pool '%s'"), zc.zc_name); 3051168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3052168404Spjd } 3053168404Spjd 3054168404Spjd /* check to see if the parent dataset exists */ 3055185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 3056185029Spjd if (errno == ENOENT && accept_ancestor) { 3057185029Spjd /* 3058185029Spjd * Go deeper to find an ancestor, give up on top level. 3059185029Spjd */ 3060185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 3061185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3062185029Spjd "no such pool '%s'"), zc.zc_name); 3063185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3064185029Spjd } 3065185029Spjd } else if (errno == ENOENT) { 3066168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3067168404Spjd "parent does not exist")); 3068168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3069185029Spjd } else 3070168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3071168404Spjd } 3072168404Spjd 3073219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 3074219089Spjd if (zoned != NULL) 3075219089Spjd *zoned = is_zoned; 3076219089Spjd 3077168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 3078219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 3079168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 3080168404Spjd zfs_close(zhp); 3081168404Spjd return (-1); 3082168404Spjd } 3083168404Spjd 3084168404Spjd /* make sure parent is a filesystem */ 3085168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3086168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3087168404Spjd "parent is not a filesystem")); 3088168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3089168404Spjd zfs_close(zhp); 3090168404Spjd return (-1); 3091168404Spjd } 3092168404Spjd 3093168404Spjd zfs_close(zhp); 3094185029Spjd if (prefixlen != NULL) 3095185029Spjd *prefixlen = strlen(parent); 3096168404Spjd return (0); 3097168404Spjd} 3098168404Spjd 3099168404Spjd/* 3100185029Spjd * Finds whether the dataset of the given type(s) exists. 3101185029Spjd */ 3102185029Spjdboolean_t 3103185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3104185029Spjd{ 3105185029Spjd zfs_handle_t *zhp; 3106185029Spjd 3107185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3108185029Spjd return (B_FALSE); 3109185029Spjd 3110185029Spjd /* 3111185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3112185029Spjd */ 3113185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3114185029Spjd int ds_type = zhp->zfs_type; 3115185029Spjd 3116185029Spjd zfs_close(zhp); 3117185029Spjd if (types & ds_type) 3118185029Spjd return (B_TRUE); 3119185029Spjd } 3120185029Spjd return (B_FALSE); 3121185029Spjd} 3122185029Spjd 3123185029Spjd/* 3124185029Spjd * Given a path to 'target', create all the ancestors between 3125185029Spjd * the prefixlen portion of the path, and the target itself. 3126185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3127185029Spjd */ 3128185029Spjdint 3129185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3130185029Spjd{ 3131185029Spjd zfs_handle_t *h; 3132185029Spjd char *cp; 3133185029Spjd const char *opname; 3134185029Spjd 3135185029Spjd /* make sure prefix exists */ 3136185029Spjd cp = target + prefixlen; 3137185029Spjd if (*cp != '/') { 3138185029Spjd assert(strchr(cp, '/') == NULL); 3139185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3140185029Spjd } else { 3141185029Spjd *cp = '\0'; 3142185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3143185029Spjd *cp = '/'; 3144185029Spjd } 3145185029Spjd if (h == NULL) 3146185029Spjd return (-1); 3147185029Spjd zfs_close(h); 3148185029Spjd 3149185029Spjd /* 3150185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3151185029Spjd * up to the prefixlen-long one. 3152185029Spjd */ 3153185029Spjd for (cp = target + prefixlen + 1; 3154185029Spjd cp = strchr(cp, '/'); *cp = '/', cp++) { 3155185029Spjd 3156185029Spjd *cp = '\0'; 3157185029Spjd 3158185029Spjd h = make_dataset_handle(hdl, target); 3159185029Spjd if (h) { 3160185029Spjd /* it already exists, nothing to do here */ 3161185029Spjd zfs_close(h); 3162185029Spjd continue; 3163185029Spjd } 3164185029Spjd 3165185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3166185029Spjd NULL) != 0) { 3167185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3168185029Spjd goto ancestorerr; 3169185029Spjd } 3170185029Spjd 3171185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3172185029Spjd if (h == NULL) { 3173185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3174185029Spjd goto ancestorerr; 3175185029Spjd } 3176185029Spjd 3177185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3178185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3179185029Spjd goto ancestorerr; 3180185029Spjd } 3181185029Spjd 3182185029Spjd if (zfs_share(h) != 0) { 3183185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3184185029Spjd goto ancestorerr; 3185185029Spjd } 3186185029Spjd 3187185029Spjd zfs_close(h); 3188185029Spjd } 3189185029Spjd 3190185029Spjd return (0); 3191185029Spjd 3192185029Spjdancestorerr: 3193185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3194185029Spjd "failed to %s ancestor '%s'"), opname, target); 3195185029Spjd return (-1); 3196185029Spjd} 3197185029Spjd 3198185029Spjd/* 3199185029Spjd * Creates non-existing ancestors of the given path. 3200185029Spjd */ 3201185029Spjdint 3202185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3203185029Spjd{ 3204185029Spjd int prefix; 3205185029Spjd char *path_copy; 3206185029Spjd int rc; 3207185029Spjd 3208219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3209185029Spjd return (-1); 3210185029Spjd 3211185029Spjd if ((path_copy = strdup(path)) != NULL) { 3212185029Spjd rc = create_parents(hdl, path_copy, prefix); 3213185029Spjd free(path_copy); 3214185029Spjd } 3215185029Spjd if (path_copy == NULL || rc != 0) 3216185029Spjd return (-1); 3217185029Spjd 3218185029Spjd return (0); 3219185029Spjd} 3220185029Spjd 3221185029Spjd/* 3222168404Spjd * Create a new filesystem or volume. 3223168404Spjd */ 3224168404Spjdint 3225168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3226168404Spjd nvlist_t *props) 3227168404Spjd{ 3228168404Spjd int ret; 3229168404Spjd uint64_t size = 0; 3230168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3231168404Spjd char errbuf[1024]; 3232168404Spjd uint64_t zoned; 3233298472Savg enum lzc_dataset_type ost; 3234168404Spjd 3235168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3236168404Spjd "cannot create '%s'"), path); 3237168404Spjd 3238168404Spjd /* validate the path, taking care to note the extended error message */ 3239185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3240168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3241168404Spjd 3242168404Spjd /* validate parents exist */ 3243185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3244168404Spjd return (-1); 3245168404Spjd 3246168404Spjd /* 3247168404Spjd * The failure modes when creating a dataset of a different type over 3248168404Spjd * one that already exists is a little strange. In particular, if you 3249168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3250168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3251168404Spjd * first try to see if the dataset exists. 3252168404Spjd */ 3253248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3254168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3255168404Spjd "dataset already exists")); 3256168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3257168404Spjd } 3258168404Spjd 3259168404Spjd if (type == ZFS_TYPE_VOLUME) 3260298472Savg ost = LZC_DATSET_TYPE_ZVOL; 3261168404Spjd else 3262298472Savg ost = LZC_DATSET_TYPE_ZFS; 3263168404Spjd 3264289500Smav /* open zpool handle for prop validation */ 3265289500Smav char pool_path[MAXNAMELEN]; 3266289500Smav (void) strlcpy(pool_path, path, sizeof (pool_path)); 3267289500Smav 3268289500Smav /* truncate pool_path at first slash */ 3269289500Smav char *p = strchr(pool_path, '/'); 3270289500Smav if (p != NULL) 3271289500Smav *p = '\0'; 3272289500Smav 3273289500Smav zpool_handle_t *zpool_handle = zpool_open(hdl, pool_path); 3274289500Smav 3275185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3276289500Smav zoned, NULL, zpool_handle, errbuf)) == 0) { 3277289500Smav zpool_close(zpool_handle); 3278168404Spjd return (-1); 3279289500Smav } 3280289500Smav zpool_close(zpool_handle); 3281168404Spjd 3282168404Spjd if (type == ZFS_TYPE_VOLUME) { 3283168404Spjd /* 3284168404Spjd * If we are creating a volume, the size and block size must 3285168404Spjd * satisfy a few restraints. First, the blocksize must be a 3286168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3287168404Spjd * volsize must be a multiple of the block size, and cannot be 3288168404Spjd * zero. 3289168404Spjd */ 3290168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3291168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3292168404Spjd nvlist_free(props); 3293168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3294168404Spjd "missing volume size")); 3295168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3296168404Spjd } 3297168404Spjd 3298168404Spjd if ((ret = nvlist_lookup_uint64(props, 3299168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3300168404Spjd &blocksize)) != 0) { 3301168404Spjd if (ret == ENOENT) { 3302168404Spjd blocksize = zfs_prop_default_numeric( 3303168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3304168404Spjd } else { 3305168404Spjd nvlist_free(props); 3306168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3307168404Spjd "missing volume block size")); 3308168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3309168404Spjd } 3310168404Spjd } 3311168404Spjd 3312168404Spjd if (size == 0) { 3313168404Spjd nvlist_free(props); 3314168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3315168404Spjd "volume size cannot be zero")); 3316168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3317168404Spjd } 3318168404Spjd 3319168404Spjd if (size % blocksize != 0) { 3320168404Spjd nvlist_free(props); 3321168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3322168404Spjd "volume size must be a multiple of volume block " 3323168404Spjd "size")); 3324168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3325168404Spjd } 3326168404Spjd } 3327168404Spjd 3328248571Smm /* create the dataset */ 3329248571Smm ret = lzc_create(path, ost, props); 3330168404Spjd nvlist_free(props); 3331168404Spjd 3332168404Spjd /* check for failure */ 3333168404Spjd if (ret != 0) { 3334168404Spjd char parent[ZFS_MAXNAMELEN]; 3335168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3336168404Spjd 3337168404Spjd switch (errno) { 3338168404Spjd case ENOENT: 3339168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3340168404Spjd "no such parent '%s'"), parent); 3341168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3342168404Spjd 3343168404Spjd case EINVAL: 3344168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3345168404Spjd "parent '%s' is not a filesystem"), parent); 3346168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3347168404Spjd 3348185029Spjd case ENOTSUP: 3349185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3350185029Spjd "pool must be upgraded to set this " 3351185029Spjd "property or value")); 3352185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3353168404Spjd#ifdef _ILP32 3354168404Spjd case EOVERFLOW: 3355168404Spjd /* 3356168404Spjd * This platform can't address a volume this big. 3357168404Spjd */ 3358168404Spjd if (type == ZFS_TYPE_VOLUME) 3359168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3360168404Spjd errbuf)); 3361168404Spjd#endif 3362168404Spjd /* FALLTHROUGH */ 3363168404Spjd default: 3364168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3365168404Spjd } 3366168404Spjd } 3367168404Spjd 3368168404Spjd return (0); 3369168404Spjd} 3370168404Spjd 3371168404Spjd/* 3372168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3373238422Smm * isn't mounted, and that there are no active dependents. If the file system 3374238422Smm * does not exist this function does nothing. 3375168404Spjd */ 3376168404Spjdint 3377219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3378168404Spjd{ 3379168404Spjd zfs_cmd_t zc = { 0 }; 3380168404Spjd 3381260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3382260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3383260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3384260183Sdelphij int error = lzc_destroy_bookmarks(nv, NULL); 3385260183Sdelphij fnvlist_free(nv); 3386260183Sdelphij if (error != 0) { 3387260183Sdelphij return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3388260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3389260183Sdelphij zhp->zfs_name)); 3390260183Sdelphij } 3391260183Sdelphij return (0); 3392260183Sdelphij } 3393260183Sdelphij 3394168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3395168404Spjd 3396168404Spjd if (ZFS_IS_VOLUME(zhp)) { 3397168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 3398168404Spjd } else { 3399168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 3400168404Spjd } 3401168404Spjd 3402219089Spjd zc.zc_defer_destroy = defer; 3403238422Smm if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && 3404238422Smm errno != ENOENT) { 3405168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3406168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3407168404Spjd zhp->zfs_name)); 3408168404Spjd } 3409168404Spjd 3410168404Spjd remove_mountpoint(zhp); 3411168404Spjd 3412168404Spjd return (0); 3413168404Spjd} 3414168404Spjd 3415168404Spjdstruct destroydata { 3416228103Smm nvlist_t *nvl; 3417228103Smm const char *snapname; 3418168404Spjd}; 3419168404Spjd 3420168404Spjdstatic int 3421219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3422168404Spjd{ 3423168404Spjd struct destroydata *dd = arg; 3424168404Spjd char name[ZFS_MAXNAMELEN]; 3425219089Spjd int rv = 0; 3426168404Spjd 3427228103Smm (void) snprintf(name, sizeof (name), 3428228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3429168404Spjd 3430251646Sdelphij if (lzc_exists(name)) 3431228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3432168404Spjd 3433228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3434228103Smm zfs_close(zhp); 3435168404Spjd return (rv); 3436168404Spjd} 3437168404Spjd 3438168404Spjd/* 3439168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3440168404Spjd */ 3441168404Spjdint 3442219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3443168404Spjd{ 3444168404Spjd int ret; 3445168404Spjd struct destroydata dd = { 0 }; 3446168404Spjd 3447168404Spjd dd.snapname = snapname; 3448228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3449228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3450168404Spjd 3451251646Sdelphij if (nvlist_empty(dd.nvl)) { 3452228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3453168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3454228103Smm zhp->zfs_name, snapname); 3455228103Smm } else { 3456248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3457168404Spjd } 3458228103Smm nvlist_free(dd.nvl); 3459228103Smm return (ret); 3460228103Smm} 3461168404Spjd 3462228103Smm/* 3463248571Smm * Destroys all the snapshots named in the nvlist. 3464228103Smm */ 3465228103Smmint 3466248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3467228103Smm{ 3468228103Smm int ret; 3469248571Smm nvlist_t *errlist; 3470228103Smm 3471248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3472168404Spjd 3473248571Smm if (ret == 0) 3474248571Smm return (0); 3475248571Smm 3476251646Sdelphij if (nvlist_empty(errlist)) { 3477168404Spjd char errbuf[1024]; 3478248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3479248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3480168404Spjd 3481248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3482248571Smm } 3483248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3484248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3485248571Smm char errbuf[1024]; 3486248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3487248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3488248571Smm nvpair_name(pair)); 3489168404Spjd 3490248571Smm switch (fnvpair_value_int32(pair)) { 3491168404Spjd case EEXIST: 3492248571Smm zfs_error_aux(hdl, 3493248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3494248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3495248571Smm break; 3496168404Spjd default: 3497248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3498248571Smm break; 3499168404Spjd } 3500168404Spjd } 3501168404Spjd 3502248571Smm return (ret); 3503168404Spjd} 3504168404Spjd 3505168404Spjd/* 3506168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3507168404Spjd */ 3508168404Spjdint 3509168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3510168404Spjd{ 3511168404Spjd char parent[ZFS_MAXNAMELEN]; 3512168404Spjd int ret; 3513168404Spjd char errbuf[1024]; 3514168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3515168404Spjd uint64_t zoned; 3516168404Spjd 3517168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3518168404Spjd 3519168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3520168404Spjd "cannot create '%s'"), target); 3521168404Spjd 3522228103Smm /* validate the target/clone name */ 3523185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3524168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3525168404Spjd 3526168404Spjd /* validate parents exist */ 3527185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3528168404Spjd return (-1); 3529168404Spjd 3530168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3531168404Spjd 3532168404Spjd /* do the clone */ 3533168404Spjd 3534168404Spjd if (props) { 3535248571Smm zfs_type_t type; 3536248571Smm if (ZFS_IS_VOLUME(zhp)) { 3537248571Smm type = ZFS_TYPE_VOLUME; 3538248571Smm } else { 3539248571Smm type = ZFS_TYPE_FILESYSTEM; 3540248571Smm } 3541185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3542289500Smav zhp, zhp->zpool_hdl, errbuf)) == NULL) 3543168404Spjd return (-1); 3544168404Spjd } 3545168404Spjd 3546248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3547248571Smm nvlist_free(props); 3548168404Spjd 3549168404Spjd if (ret != 0) { 3550168404Spjd switch (errno) { 3551168404Spjd 3552168404Spjd case ENOENT: 3553168404Spjd /* 3554168404Spjd * The parent doesn't exist. We should have caught this 3555168404Spjd * above, but there may a race condition that has since 3556168404Spjd * destroyed the parent. 3557168404Spjd * 3558168404Spjd * At this point, we don't know whether it's the source 3559168404Spjd * that doesn't exist anymore, or whether the target 3560168404Spjd * dataset doesn't exist. 3561168404Spjd */ 3562168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3563168404Spjd "no such parent '%s'"), parent); 3564168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3565168404Spjd 3566168404Spjd case EXDEV: 3567168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3568168404Spjd "source and target pools differ")); 3569168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3570168404Spjd errbuf)); 3571168404Spjd 3572168404Spjd default: 3573168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3574168404Spjd errbuf)); 3575168404Spjd } 3576168404Spjd } 3577168404Spjd 3578168404Spjd return (ret); 3579168404Spjd} 3580168404Spjd 3581168404Spjd/* 3582168404Spjd * Promotes the given clone fs to be the clone parent. 3583168404Spjd */ 3584168404Spjdint 3585168404Spjdzfs_promote(zfs_handle_t *zhp) 3586168404Spjd{ 3587168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3588168404Spjd zfs_cmd_t zc = { 0 }; 3589168404Spjd char parent[MAXPATHLEN]; 3590168404Spjd int ret; 3591168404Spjd char errbuf[1024]; 3592168404Spjd 3593168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3594168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3595168404Spjd 3596168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3597168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3598168404Spjd "snapshots can not be promoted")); 3599168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3600168404Spjd } 3601168404Spjd 3602185029Spjd (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); 3603168404Spjd if (parent[0] == '\0') { 3604168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3605168404Spjd "not a cloned filesystem")); 3606168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3607168404Spjd } 3608168404Spjd 3609185029Spjd (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, 3610168404Spjd sizeof (zc.zc_value)); 3611168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3612185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); 3613168404Spjd 3614168404Spjd if (ret != 0) { 3615168404Spjd int save_errno = errno; 3616168404Spjd 3617168404Spjd switch (save_errno) { 3618168404Spjd case EEXIST: 3619219089Spjd /* There is a conflicting snapshot name. */ 3620168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3621219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3622219089Spjd zc.zc_string, parent); 3623168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3624168404Spjd 3625168404Spjd default: 3626168404Spjd return (zfs_standard_error(hdl, save_errno, errbuf)); 3627168404Spjd } 3628168404Spjd } 3629168404Spjd return (ret); 3630168404Spjd} 3631168404Spjd 3632248571Smmtypedef struct snapdata { 3633248571Smm nvlist_t *sd_nvl; 3634248571Smm const char *sd_snapname; 3635248571Smm} snapdata_t; 3636248571Smm 3637248571Smmstatic int 3638248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3639248571Smm{ 3640248571Smm snapdata_t *sd = arg; 3641248571Smm char name[ZFS_MAXNAMELEN]; 3642248571Smm int rv = 0; 3643248571Smm 3644253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3645253819Sdelphij (void) snprintf(name, sizeof (name), 3646253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3647248571Smm 3648253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3649248571Smm 3650253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3651253819Sdelphij } 3652248571Smm zfs_close(zhp); 3653253819Sdelphij 3654248571Smm return (rv); 3655248571Smm} 3656248571Smm 3657168404Spjd/* 3658248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3659248571Smm * created. 3660168404Spjd */ 3661168404Spjdint 3662248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3663168404Spjd{ 3664168404Spjd int ret; 3665168404Spjd char errbuf[1024]; 3666248571Smm nvpair_t *elem; 3667248571Smm nvlist_t *errors; 3668168404Spjd 3669168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3670248571Smm "cannot create snapshots ")); 3671168404Spjd 3672248571Smm elem = NULL; 3673248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3674248571Smm const char *snapname = nvpair_name(elem); 3675168404Spjd 3676248571Smm /* validate the target name */ 3677248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3678248571Smm B_TRUE)) { 3679248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3680248571Smm dgettext(TEXT_DOMAIN, 3681248571Smm "cannot create snapshot '%s'"), snapname); 3682248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3683248571Smm } 3684248571Smm } 3685185029Spjd 3686289500Smav /* 3687289500Smav * get pool handle for prop validation. assumes all snaps are in the 3688289500Smav * same pool, as does lzc_snapshot (below). 3689289500Smav */ 3690289500Smav char pool[MAXNAMELEN]; 3691289500Smav elem = nvlist_next_nvpair(snaps, NULL); 3692289500Smav (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); 3693289500Smav pool[strcspn(pool, "/@")] = '\0'; 3694289500Smav zpool_handle_t *zpool_hdl = zpool_open(hdl, pool); 3695289500Smav 3696248571Smm if (props != NULL && 3697248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 3698289500Smav props, B_FALSE, NULL, zpool_hdl, errbuf)) == NULL) { 3699289500Smav zpool_close(zpool_hdl); 3700248571Smm return (-1); 3701248571Smm } 3702289500Smav zpool_close(zpool_hdl); 3703248571Smm 3704248571Smm ret = lzc_snapshot(snaps, props, &errors); 3705248571Smm 3706248571Smm if (ret != 0) { 3707248571Smm boolean_t printed = B_FALSE; 3708248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 3709248571Smm elem != NULL; 3710248571Smm elem = nvlist_next_nvpair(errors, elem)) { 3711248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3712248571Smm dgettext(TEXT_DOMAIN, 3713248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 3714248571Smm (void) zfs_standard_error(hdl, 3715248571Smm fnvpair_value_int32(elem), errbuf); 3716248571Smm printed = B_TRUE; 3717185029Spjd } 3718248571Smm if (!printed) { 3719248571Smm switch (ret) { 3720248571Smm case EXDEV: 3721248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3722248571Smm "multiple snapshots of same " 3723248571Smm "fs not allowed")); 3724248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 3725185029Spjd 3726248571Smm break; 3727248571Smm default: 3728248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 3729248571Smm } 3730248571Smm } 3731185029Spjd } 3732185029Spjd 3733248571Smm nvlist_free(props); 3734248571Smm nvlist_free(errors); 3735248571Smm return (ret); 3736248571Smm} 3737168404Spjd 3738248571Smmint 3739248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 3740248571Smm nvlist_t *props) 3741248571Smm{ 3742248571Smm int ret; 3743248571Smm snapdata_t sd = { 0 }; 3744248571Smm char fsname[ZFS_MAXNAMELEN]; 3745248571Smm char *cp; 3746248571Smm zfs_handle_t *zhp; 3747248571Smm char errbuf[1024]; 3748248571Smm 3749248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3750248571Smm "cannot snapshot %s"), path); 3751248571Smm 3752248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 3753248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3754248571Smm 3755248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 3756248571Smm cp = strchr(fsname, '@'); 3757248571Smm *cp = '\0'; 3758248571Smm sd.sd_snapname = cp + 1; 3759248571Smm 3760248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 3761168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 3762168404Spjd return (-1); 3763168404Spjd } 3764168404Spjd 3765248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 3766248571Smm if (recursive) { 3767248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 3768248571Smm } else { 3769248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 3770168404Spjd } 3771168404Spjd 3772248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 3773248571Smm nvlist_free(sd.sd_nvl); 3774168404Spjd zfs_close(zhp); 3775168404Spjd return (ret); 3776168404Spjd} 3777168404Spjd 3778168404Spjd/* 3779168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 3780168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 3781168404Spjd * is a dependent and we should just destroy it without checking the transaction 3782168404Spjd * group. 3783168404Spjd */ 3784168404Spjdtypedef struct rollback_data { 3785168404Spjd const char *cb_target; /* the snapshot */ 3786168404Spjd uint64_t cb_create; /* creation time reference */ 3787185029Spjd boolean_t cb_error; 3788185029Spjd boolean_t cb_force; 3789168404Spjd} rollback_data_t; 3790168404Spjd 3791168404Spjdstatic int 3792260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 3793168404Spjd{ 3794168404Spjd rollback_data_t *cbp = data; 3795260183Sdelphij prop_changelist_t *clp; 3796168404Spjd 3797260183Sdelphij /* We must destroy this clone; first unmount it */ 3798260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 3799260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 3800260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 3801260183Sdelphij cbp->cb_error = B_TRUE; 3802260183Sdelphij zfs_close(zhp); 3803260183Sdelphij return (0); 3804260183Sdelphij } 3805260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 3806260183Sdelphij cbp->cb_error = B_TRUE; 3807260183Sdelphij else 3808260183Sdelphij changelist_remove(clp, zhp->zfs_name); 3809260183Sdelphij (void) changelist_postfix(clp); 3810260183Sdelphij changelist_free(clp); 3811168404Spjd 3812260183Sdelphij zfs_close(zhp); 3813260183Sdelphij return (0); 3814260183Sdelphij} 3815168404Spjd 3816260183Sdelphijstatic int 3817260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 3818260183Sdelphij{ 3819260183Sdelphij rollback_data_t *cbp = data; 3820185029Spjd 3821260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3822260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 3823260183Sdelphij rollback_destroy_dependent, cbp); 3824260183Sdelphij 3825260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 3826168404Spjd } 3827168404Spjd 3828168404Spjd zfs_close(zhp); 3829168404Spjd return (0); 3830168404Spjd} 3831168404Spjd 3832168404Spjd/* 3833168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 3834168404Spjd * data changes since then and making it the active dataset. 3835168404Spjd * 3836260183Sdelphij * Any snapshots and bookmarks more recent than the target are 3837260183Sdelphij * destroyed, along with their dependents (i.e. clones). 3838168404Spjd */ 3839168404Spjdint 3840185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 3841168404Spjd{ 3842168404Spjd rollback_data_t cb = { 0 }; 3843185029Spjd int err; 3844185029Spjd boolean_t restore_resv = 0; 3845185029Spjd uint64_t old_volsize, new_volsize; 3846185029Spjd zfs_prop_t resv_prop; 3847168404Spjd 3848185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 3849185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 3850168404Spjd 3851168404Spjd /* 3852239774Smm * Destroy all recent snapshots and their dependents. 3853168404Spjd */ 3854185029Spjd cb.cb_force = force; 3855168404Spjd cb.cb_target = snap->zfs_name; 3856168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3857260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 3858260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 3859168404Spjd 3860185029Spjd if (cb.cb_error) 3861185029Spjd return (-1); 3862168404Spjd 3863168404Spjd /* 3864168404Spjd * Now that we have verified that the snapshot is the latest, 3865168404Spjd * rollback to the given snapshot. 3866168404Spjd */ 3867168404Spjd 3868185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 3869185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 3870185029Spjd return (-1); 3871185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3872185029Spjd restore_resv = 3873185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 3874168404Spjd } 3875168404Spjd 3876168404Spjd /* 3877185029Spjd * We rely on zfs_iter_children() to verify that there are no 3878185029Spjd * newer snapshots for the given dataset. Therefore, we can 3879185029Spjd * simply pass the name on to the ioctl() call. There is still 3880185029Spjd * an unlikely race condition where the user has taken a 3881185029Spjd * snapshot since we verified that this was the most recent. 3882168404Spjd */ 3883254587Sdelphij err = lzc_rollback(zhp->zfs_name, NULL, 0); 3884254587Sdelphij if (err != 0) { 3885185029Spjd (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3886185029Spjd dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 3887185029Spjd zhp->zfs_name); 3888185029Spjd return (err); 3889185029Spjd } 3890168404Spjd 3891185029Spjd /* 3892185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 3893185029Spjd * rollback reservation and the volsize has changed then set 3894185029Spjd * the reservation property to the post-rollback volsize. 3895185029Spjd * Make a new handle since the rollback closed the dataset. 3896185029Spjd */ 3897185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 3898185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 3899185029Spjd if (restore_resv) { 3900185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 3901185029Spjd if (old_volsize != new_volsize) 3902185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 3903185029Spjd new_volsize); 3904185029Spjd } 3905185029Spjd zfs_close(zhp); 3906185029Spjd } 3907185029Spjd return (err); 3908168404Spjd} 3909168404Spjd 3910168404Spjd/* 3911168404Spjd * Renames the given dataset. 3912168404Spjd */ 3913168404Spjdint 3914240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 3915240870Spjd renameflags_t flags) 3916168404Spjd{ 3917168404Spjd int ret; 3918168404Spjd zfs_cmd_t zc = { 0 }; 3919168404Spjd char *delim; 3920168676Spjd prop_changelist_t *cl = NULL; 3921168676Spjd zfs_handle_t *zhrp = NULL; 3922168676Spjd char *parentname = NULL; 3923168404Spjd char parent[ZFS_MAXNAMELEN]; 3924226676Spjd char property[ZFS_MAXPROPLEN]; 3925168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3926168404Spjd char errbuf[1024]; 3927168404Spjd 3928168404Spjd /* if we have the same exact name, just return success */ 3929168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 3930168404Spjd return (0); 3931168404Spjd 3932168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3933168404Spjd "cannot rename to '%s'"), target); 3934168404Spjd 3935240870Spjd if (source != NULL) { 3936240870Spjd /* 3937240870Spjd * This is recursive snapshots rename, put snapshot name 3938240870Spjd * (that might not exist) into zfs_name. 3939240870Spjd */ 3940240870Spjd assert(flags.recurse); 3941240870Spjd 3942240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 3943240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 3944240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 3945240870Spjd } 3946240870Spjd 3947168404Spjd /* 3948168404Spjd * Make sure the target name is valid 3949168404Spjd */ 3950168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3951168404Spjd if ((strchr(target, '@') == NULL) || 3952168404Spjd *target == '@') { 3953168404Spjd /* 3954168404Spjd * Snapshot target name is abbreviated, 3955168404Spjd * reconstruct full dataset name 3956168404Spjd */ 3957168404Spjd (void) strlcpy(parent, zhp->zfs_name, 3958168404Spjd sizeof (parent)); 3959168404Spjd delim = strchr(parent, '@'); 3960168404Spjd if (strchr(target, '@') == NULL) 3961168404Spjd *(++delim) = '\0'; 3962168404Spjd else 3963168404Spjd *delim = '\0'; 3964168404Spjd (void) strlcat(parent, target, sizeof (parent)); 3965168404Spjd target = parent; 3966168404Spjd } else { 3967168404Spjd /* 3968168404Spjd * Make sure we're renaming within the same dataset. 3969168404Spjd */ 3970168404Spjd delim = strchr(target, '@'); 3971168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 3972168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 3973168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3974168404Spjd "snapshots must be part of same " 3975168404Spjd "dataset")); 3976168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 3977168404Spjd errbuf)); 3978168404Spjd } 3979168404Spjd } 3980185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3981168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3982168404Spjd } else { 3983226705Spjd if (flags.recurse) { 3984168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3985168676Spjd "recursive rename must be a snapshot")); 3986168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3987168676Spjd } 3988168676Spjd 3989185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 3990168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3991168404Spjd 3992168404Spjd /* validate parents */ 3993219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 3994168404Spjd return (-1); 3995168404Spjd 3996168404Spjd /* make sure we're in the same pool */ 3997168404Spjd verify((delim = strchr(target, '/')) != NULL); 3998168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 3999168404Spjd zhp->zfs_name[delim - target] != '/') { 4000168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4001168404Spjd "datasets must be within same pool")); 4002168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 4003168404Spjd } 4004168404Spjd 4005168404Spjd /* new name cannot be a child of the current dataset name */ 4006219089Spjd if (is_descendant(zhp->zfs_name, target)) { 4007168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4008219089Spjd "New dataset name cannot be a descendant of " 4009168404Spjd "current dataset name")); 4010168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4011168404Spjd } 4012168404Spjd } 4013168404Spjd 4014168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4015168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 4016168404Spjd 4017168404Spjd if (getzoneid() == GLOBAL_ZONEID && 4018168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 4019168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4020168404Spjd "dataset is used in a non-global zone")); 4021168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 4022168404Spjd } 4023168404Spjd 4024226705Spjd /* 4025226705Spjd * Avoid unmounting file systems with mountpoint property set to 4026226705Spjd * 'legacy' or 'none' even if -u option is not given. 4027226705Spjd */ 4028226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 4029226705Spjd !flags.recurse && !flags.nounmount && 4030226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 4031226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 4032226705Spjd (strcmp(property, "legacy") == 0 || 4033226705Spjd strcmp(property, "none") == 0)) { 4034226705Spjd flags.nounmount = B_TRUE; 4035226705Spjd } 4036226705Spjd if (flags.recurse) { 4037226705Spjd 4038185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 4039185029Spjd if (parentname == NULL) { 4040185029Spjd ret = -1; 4041185029Spjd goto error; 4042185029Spjd } 4043168676Spjd delim = strchr(parentname, '@'); 4044168676Spjd *delim = '\0'; 4045185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 4046168676Spjd if (zhrp == NULL) { 4047185029Spjd ret = -1; 4048185029Spjd goto error; 4049168676Spjd } 4050268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 4051226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 4052235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 4053235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 4054168676Spjd return (-1); 4055226676Spjd } 4056168676Spjd 4057168676Spjd if (changelist_haszonedchild(cl)) { 4058168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4059168676Spjd "child dataset with inherited mountpoint is used " 4060168676Spjd "in a non-global zone")); 4061168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 4062168676Spjd goto error; 4063168676Spjd } 4064168676Spjd 4065168676Spjd if ((ret = changelist_prefix(cl)) != 0) 4066168676Spjd goto error; 4067168404Spjd } 4068168404Spjd 4069168404Spjd if (ZFS_IS_VOLUME(zhp)) 4070168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 4071168404Spjd else 4072168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4073168404Spjd 4074168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4075168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 4076168404Spjd 4077226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 4078226705Spjd if (flags.nounmount) 4079226676Spjd zc.zc_cookie |= 2; 4080168676Spjd 4081185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 4082168676Spjd /* 4083168676Spjd * if it was recursive, the one that actually failed will 4084168676Spjd * be in zc.zc_name 4085168676Spjd */ 4086168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4087185029Spjd "cannot rename '%s'"), zc.zc_name); 4088168404Spjd 4089226705Spjd if (flags.recurse && errno == EEXIST) { 4090168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4091168676Spjd "a child dataset already has a snapshot " 4092168676Spjd "with the new name")); 4093185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4094168676Spjd } else { 4095168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 4096168676Spjd } 4097168676Spjd 4098168404Spjd /* 4099168404Spjd * On failure, we still want to remount any filesystems that 4100168404Spjd * were previously mounted, so we don't alter the system state. 4101168404Spjd */ 4102268469Sdelphij if (cl != NULL) 4103168676Spjd (void) changelist_postfix(cl); 4104168404Spjd } else { 4105268469Sdelphij if (cl != NULL) { 4106168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 4107168676Spjd ret = changelist_postfix(cl); 4108168676Spjd } 4109168404Spjd } 4110168404Spjd 4111168404Spjderror: 4112268469Sdelphij if (parentname != NULL) { 4113168676Spjd free(parentname); 4114168676Spjd } 4115268469Sdelphij if (zhrp != NULL) { 4116168676Spjd zfs_close(zhrp); 4117168676Spjd } 4118268469Sdelphij if (cl != NULL) { 4119168676Spjd changelist_free(cl); 4120168676Spjd } 4121168404Spjd return (ret); 4122168404Spjd} 4123168404Spjd 4124219089Spjdnvlist_t * 4125219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4126168404Spjd{ 4127219089Spjd return (zhp->zfs_user_props); 4128168676Spjd} 4129168676Spjd 4130168404Spjdnvlist_t * 4131219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4132168404Spjd{ 4133219089Spjd if (zhp->zfs_recvd_props == NULL) 4134219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4135219089Spjd return (NULL); 4136219089Spjd return (zhp->zfs_recvd_props); 4137168404Spjd} 4138168404Spjd 4139168404Spjd/* 4140168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4141168404Spjd * display, and their maximum widths. This does two main things: 4142168404Spjd * 4143168404Spjd * - If this is a list of all properties, then expand the list to include 4144168404Spjd * all native properties, and set a flag so that for each dataset we look 4145168404Spjd * for new unique user properties and add them to the list. 4146168404Spjd * 4147168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4148219089Spjd * so that we can size the column appropriately. If the user has 4149219089Spjd * requested received property values, we also need to compute the width 4150219089Spjd * of the RECEIVED column. 4151168404Spjd */ 4152168404Spjdint 4153259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4154259850Sdelphij boolean_t literal) 4155168404Spjd{ 4156168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4157185029Spjd zprop_list_t *entry; 4158185029Spjd zprop_list_t **last, **start; 4159168404Spjd nvlist_t *userprops, *propval; 4160168404Spjd nvpair_t *elem; 4161168404Spjd char *strval; 4162168404Spjd char buf[ZFS_MAXPROPLEN]; 4163168404Spjd 4164185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4165168404Spjd return (-1); 4166168404Spjd 4167168404Spjd userprops = zfs_get_user_props(zhp); 4168168404Spjd 4169168404Spjd entry = *plp; 4170168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4171168404Spjd /* 4172168404Spjd * Go through and add any user properties as necessary. We 4173168404Spjd * start by incrementing our list pointer to the first 4174168404Spjd * non-native property. 4175168404Spjd */ 4176168404Spjd start = plp; 4177168404Spjd while (*start != NULL) { 4178185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4179168404Spjd break; 4180168404Spjd start = &(*start)->pl_next; 4181168404Spjd } 4182168404Spjd 4183168404Spjd elem = NULL; 4184168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4185168404Spjd /* 4186168404Spjd * See if we've already found this property in our list. 4187168404Spjd */ 4188168404Spjd for (last = start; *last != NULL; 4189168404Spjd last = &(*last)->pl_next) { 4190168404Spjd if (strcmp((*last)->pl_user_prop, 4191168404Spjd nvpair_name(elem)) == 0) 4192168404Spjd break; 4193168404Spjd } 4194168404Spjd 4195168404Spjd if (*last == NULL) { 4196168404Spjd if ((entry = zfs_alloc(hdl, 4197185029Spjd sizeof (zprop_list_t))) == NULL || 4198168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4199168404Spjd nvpair_name(elem)))) == NULL) { 4200168404Spjd free(entry); 4201168404Spjd return (-1); 4202168404Spjd } 4203168404Spjd 4204185029Spjd entry->pl_prop = ZPROP_INVAL; 4205168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4206168404Spjd entry->pl_all = B_TRUE; 4207168404Spjd *last = entry; 4208168404Spjd } 4209168404Spjd } 4210168404Spjd } 4211168404Spjd 4212168404Spjd /* 4213168404Spjd * Now go through and check the width of any non-fixed columns 4214168404Spjd */ 4215168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4216259850Sdelphij if (entry->pl_fixed && !literal) 4217168404Spjd continue; 4218168404Spjd 4219185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4220168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4221259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4222168404Spjd if (strlen(buf) > entry->pl_width) 4223168404Spjd entry->pl_width = strlen(buf); 4224168404Spjd } 4225219089Spjd if (received && zfs_prop_get_recvd(zhp, 4226219089Spjd zfs_prop_to_name(entry->pl_prop), 4227259850Sdelphij buf, sizeof (buf), literal) == 0) 4228219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4229219089Spjd entry->pl_recvd_width = strlen(buf); 4230219089Spjd } else { 4231219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4232219089Spjd &propval) == 0) { 4233219089Spjd verify(nvlist_lookup_string(propval, 4234219089Spjd ZPROP_VALUE, &strval) == 0); 4235219089Spjd if (strlen(strval) > entry->pl_width) 4236219089Spjd entry->pl_width = strlen(strval); 4237219089Spjd } 4238219089Spjd if (received && zfs_prop_get_recvd(zhp, 4239219089Spjd entry->pl_user_prop, 4240259850Sdelphij buf, sizeof (buf), literal) == 0) 4241219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4242219089Spjd entry->pl_recvd_width = strlen(buf); 4243168404Spjd } 4244168404Spjd } 4245168404Spjd 4246168404Spjd return (0); 4247168404Spjd} 4248168404Spjd 4249185029Spjdint 4250185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4251209962Smm char *resource, void *export, void *sharetab, 4252209962Smm int sharemax, zfs_share_op_t operation) 4253185029Spjd{ 4254185029Spjd zfs_cmd_t zc = { 0 }; 4255185029Spjd int error; 4256185029Spjd 4257185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4258185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4259209962Smm if (resource) 4260209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4261185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4262185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4263185029Spjd zc.zc_share.z_sharetype = operation; 4264185029Spjd zc.zc_share.z_sharemax = sharemax; 4265185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4266185029Spjd return (error); 4267185029Spjd} 4268185029Spjd 4269205198Sdelphijvoid 4270205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4271205198Sdelphij{ 4272205198Sdelphij nvpair_t *curr; 4273205198Sdelphij 4274205198Sdelphij /* 4275205198Sdelphij * Keep a reference to the props-table against which we prune the 4276205198Sdelphij * properties. 4277205198Sdelphij */ 4278205198Sdelphij zhp->zfs_props_table = props; 4279205198Sdelphij 4280205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4281205198Sdelphij 4282205198Sdelphij while (curr) { 4283205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4284205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4285205198Sdelphij 4286206199Sdelphij /* 4287219089Spjd * User properties will result in ZPROP_INVAL, and since we 4288219089Spjd * only know how to prune standard ZFS properties, we always 4289219089Spjd * leave these in the list. This can also happen if we 4290219089Spjd * encounter an unknown DSL property (when running older 4291219089Spjd * software, for example). 4292206199Sdelphij */ 4293206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4294205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4295205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4296205198Sdelphij curr = next; 4297205198Sdelphij } 4298205198Sdelphij} 4299205198Sdelphij 4300277300Ssmh#ifdef illumos 4301209962Smmstatic int 4302209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4303209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4304209962Smm{ 4305209962Smm zfs_cmd_t zc = { 0 }; 4306209962Smm nvlist_t *nvlist = NULL; 4307209962Smm int error; 4308209962Smm 4309209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4310209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4311209962Smm zc.zc_cookie = (uint64_t)cmd; 4312209962Smm 4313209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4314209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4315209962Smm (void) no_memory(hdl); 4316289497Smav return (0); 4317209962Smm } 4318209962Smm } 4319209962Smm 4320209962Smm switch (cmd) { 4321209962Smm case ZFS_SMB_ACL_ADD: 4322209962Smm case ZFS_SMB_ACL_REMOVE: 4323209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4324209962Smm break; 4325209962Smm case ZFS_SMB_ACL_RENAME: 4326209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4327209962Smm resource1) != 0) { 4328209962Smm (void) no_memory(hdl); 4329209962Smm return (-1); 4330209962Smm } 4331209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4332209962Smm resource2) != 0) { 4333209962Smm (void) no_memory(hdl); 4334209962Smm return (-1); 4335209962Smm } 4336209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4337209962Smm nvlist_free(nvlist); 4338209962Smm return (-1); 4339209962Smm } 4340209962Smm break; 4341209962Smm case ZFS_SMB_ACL_PURGE: 4342209962Smm break; 4343209962Smm default: 4344209962Smm return (-1); 4345209962Smm } 4346209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4347296528Smav nvlist_free(nvlist); 4348209962Smm return (error); 4349209962Smm} 4350209962Smm 4351209962Smmint 4352209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4353209962Smm char *path, char *resource) 4354209962Smm{ 4355209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4356209962Smm resource, NULL)); 4357209962Smm} 4358209962Smm 4359209962Smmint 4360209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4361209962Smm char *path, char *resource) 4362209962Smm{ 4363209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4364209962Smm resource, NULL)); 4365209962Smm} 4366209962Smm 4367209962Smmint 4368209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4369209962Smm{ 4370209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4371209962Smm NULL, NULL)); 4372209962Smm} 4373209962Smm 4374209962Smmint 4375209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4376209962Smm char *oldname, char *newname) 4377209962Smm{ 4378209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4379209962Smm oldname, newname)); 4380209962Smm} 4381277300Ssmh#endif /* illumos */ 4382209962Smm 4383209962Smmint 4384209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4385209962Smm zfs_userspace_cb_t func, void *arg) 4386209962Smm{ 4387209962Smm zfs_cmd_t zc = { 0 }; 4388209962Smm zfs_useracct_t buf[100]; 4389240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4390240415Smm int ret; 4391209962Smm 4392228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4393209962Smm 4394209962Smm zc.zc_objset_type = type; 4395209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4396209962Smm 4397240415Smm for (;;) { 4398209962Smm zfs_useracct_t *zua = buf; 4399209962Smm 4400209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4401240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4402248571Smm char errbuf[1024]; 4403240415Smm 4404240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4405240415Smm dgettext(TEXT_DOMAIN, 4406240415Smm "cannot get used/quota for %s"), zc.zc_name); 4407240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4408240415Smm } 4409240415Smm if (zc.zc_nvlist_dst_size == 0) 4410209962Smm break; 4411209962Smm 4412209962Smm while (zc.zc_nvlist_dst_size > 0) { 4413240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4414240415Smm zua->zu_space)) != 0) 4415240415Smm return (ret); 4416209962Smm zua++; 4417209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4418209962Smm } 4419209962Smm } 4420209962Smm 4421240415Smm return (0); 4422209962Smm} 4423209962Smm 4424248571Smmstruct holdarg { 4425248571Smm nvlist_t *nvl; 4426248571Smm const char *snapname; 4427248571Smm const char *tag; 4428248571Smm boolean_t recursive; 4429252219Sdelphij int error; 4430248571Smm}; 4431248571Smm 4432248571Smmstatic int 4433248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4434248571Smm{ 4435248571Smm struct holdarg *ha = arg; 4436248571Smm char name[ZFS_MAXNAMELEN]; 4437248571Smm int rv = 0; 4438248571Smm 4439248571Smm (void) snprintf(name, sizeof (name), 4440248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4441248571Smm 4442251646Sdelphij if (lzc_exists(name)) 4443248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4444248571Smm 4445248571Smm if (ha->recursive) 4446248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4447248571Smm zfs_close(zhp); 4448248571Smm return (rv); 4449248571Smm} 4450248571Smm 4451219089Spjdint 4452219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4453251646Sdelphij boolean_t recursive, int cleanup_fd) 4454219089Spjd{ 4455248571Smm int ret; 4456248571Smm struct holdarg ha; 4457219089Spjd 4458248571Smm ha.nvl = fnvlist_alloc(); 4459248571Smm ha.snapname = snapname; 4460248571Smm ha.tag = tag; 4461248571Smm ha.recursive = recursive; 4462248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4463249357Smm 4464251646Sdelphij if (nvlist_empty(ha.nvl)) { 4465251646Sdelphij char errbuf[1024]; 4466251646Sdelphij 4467249357Smm fnvlist_free(ha.nvl); 4468249357Smm ret = ENOENT; 4469251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4470251646Sdelphij dgettext(TEXT_DOMAIN, 4471251646Sdelphij "cannot hold snapshot '%s@%s'"), 4472251646Sdelphij zhp->zfs_name, snapname); 4473251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4474249357Smm return (ret); 4475249357Smm } 4476249357Smm 4477251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4478248571Smm fnvlist_free(ha.nvl); 4479219089Spjd 4480251646Sdelphij return (ret); 4481251646Sdelphij} 4482251646Sdelphij 4483251646Sdelphijint 4484251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4485251646Sdelphij{ 4486251646Sdelphij int ret; 4487251646Sdelphij nvlist_t *errors; 4488251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4489251646Sdelphij char errbuf[1024]; 4490251646Sdelphij nvpair_t *elem; 4491251646Sdelphij 4492251646Sdelphij errors = NULL; 4493251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4494251646Sdelphij 4495251646Sdelphij if (ret == 0) { 4496251646Sdelphij /* There may be errors even in the success case. */ 4497251646Sdelphij fnvlist_free(errors); 4498248571Smm return (0); 4499251646Sdelphij } 4500219089Spjd 4501251646Sdelphij if (nvlist_empty(errors)) { 4502248571Smm /* no hold-specific errors */ 4503248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4504248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4505248571Smm switch (ret) { 4506248571Smm case ENOTSUP: 4507248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4508248571Smm "pool must be upgraded")); 4509248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4510248571Smm break; 4511248571Smm case EINVAL: 4512248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4513248571Smm break; 4514248571Smm default: 4515248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4516248571Smm } 4517248571Smm } 4518219089Spjd 4519248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4520248571Smm elem != NULL; 4521248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4522248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4523248571Smm dgettext(TEXT_DOMAIN, 4524248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4525248571Smm switch (fnvpair_value_int32(elem)) { 4526219089Spjd case E2BIG: 4527219089Spjd /* 4528219089Spjd * Temporary tags wind up having the ds object id 4529219089Spjd * prepended. So even if we passed the length check 4530219089Spjd * above, it's still possible for the tag to wind 4531219089Spjd * up being slightly too long. 4532219089Spjd */ 4533248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4534248571Smm break; 4535219089Spjd case EINVAL: 4536248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4537248571Smm break; 4538219089Spjd case EEXIST: 4539248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4540248571Smm break; 4541219089Spjd default: 4542248571Smm (void) zfs_standard_error(hdl, 4543248571Smm fnvpair_value_int32(elem), errbuf); 4544219089Spjd } 4545219089Spjd } 4546219089Spjd 4547248571Smm fnvlist_free(errors); 4548248571Smm return (ret); 4549219089Spjd} 4550219089Spjd 4551248571Smmstatic int 4552248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4553248571Smm{ 4554248571Smm struct holdarg *ha = arg; 4555248571Smm char name[ZFS_MAXNAMELEN]; 4556248571Smm int rv = 0; 4557252219Sdelphij nvlist_t *existing_holds; 4558248571Smm 4559248571Smm (void) snprintf(name, sizeof (name), 4560248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4561248571Smm 4562252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4563252219Sdelphij ha->error = ENOENT; 4564252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4565252219Sdelphij ha->error = ESRCH; 4566252219Sdelphij } else { 4567252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4568252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4569252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4570252219Sdelphij fnvlist_free(torelease); 4571248571Smm } 4572248571Smm 4573248571Smm if (ha->recursive) 4574248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4575248571Smm zfs_close(zhp); 4576248571Smm return (rv); 4577248571Smm} 4578248571Smm 4579219089Spjdint 4580219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4581219089Spjd boolean_t recursive) 4582219089Spjd{ 4583248571Smm int ret; 4584248571Smm struct holdarg ha; 4585251646Sdelphij nvlist_t *errors = NULL; 4586248571Smm nvpair_t *elem; 4587219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4588249357Smm char errbuf[1024]; 4589219089Spjd 4590248571Smm ha.nvl = fnvlist_alloc(); 4591248571Smm ha.snapname = snapname; 4592248571Smm ha.tag = tag; 4593248571Smm ha.recursive = recursive; 4594252219Sdelphij ha.error = 0; 4595248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4596249357Smm 4597251646Sdelphij if (nvlist_empty(ha.nvl)) { 4598249357Smm fnvlist_free(ha.nvl); 4599252219Sdelphij ret = ha.error; 4600249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4601249357Smm dgettext(TEXT_DOMAIN, 4602249357Smm "cannot release hold from snapshot '%s@%s'"), 4603249357Smm zhp->zfs_name, snapname); 4604252219Sdelphij if (ret == ESRCH) { 4605252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4606252219Sdelphij } else { 4607252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4608252219Sdelphij } 4609249357Smm return (ret); 4610249357Smm } 4611249357Smm 4612248571Smm ret = lzc_release(ha.nvl, &errors); 4613248571Smm fnvlist_free(ha.nvl); 4614219089Spjd 4615251646Sdelphij if (ret == 0) { 4616251646Sdelphij /* There may be errors even in the success case. */ 4617251646Sdelphij fnvlist_free(errors); 4618248571Smm return (0); 4619251646Sdelphij } 4620219089Spjd 4621251646Sdelphij if (nvlist_empty(errors)) { 4622248571Smm /* no hold-specific errors */ 4623219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4624248571Smm "cannot release")); 4625219089Spjd switch (errno) { 4626219089Spjd case ENOTSUP: 4627219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4628219089Spjd "pool must be upgraded")); 4629248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4630248571Smm break; 4631248571Smm default: 4632248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4633248571Smm } 4634248571Smm } 4635248571Smm 4636248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4637248571Smm elem != NULL; 4638248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4639248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4640248571Smm dgettext(TEXT_DOMAIN, 4641248571Smm "cannot release hold from snapshot '%s'"), 4642248571Smm nvpair_name(elem)); 4643248571Smm switch (fnvpair_value_int32(elem)) { 4644248571Smm case ESRCH: 4645248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4646248571Smm break; 4647219089Spjd case EINVAL: 4648248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4649248571Smm break; 4650219089Spjd default: 4651248571Smm (void) zfs_standard_error_fmt(hdl, 4652248571Smm fnvpair_value_int32(elem), errbuf); 4653219089Spjd } 4654219089Spjd } 4655219089Spjd 4656248571Smm fnvlist_free(errors); 4657248571Smm return (ret); 4658219089Spjd} 4659219089Spjd 4660219089Spjdint 4661219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4662219089Spjd{ 4663219089Spjd zfs_cmd_t zc = { 0 }; 4664219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4665219089Spjd int nvsz = 2048; 4666219089Spjd void *nvbuf; 4667219089Spjd int err = 0; 4668248571Smm char errbuf[1024]; 4669219089Spjd 4670219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4671219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4672219089Spjd 4673219089Spjdtryagain: 4674219089Spjd 4675219089Spjd nvbuf = malloc(nvsz); 4676219089Spjd if (nvbuf == NULL) { 4677219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 4678219089Spjd goto out; 4679219089Spjd } 4680219089Spjd 4681219089Spjd zc.zc_nvlist_dst_size = nvsz; 4682219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 4683219089Spjd 4684219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); 4685219089Spjd 4686230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 4687219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4688219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 4689219089Spjd zc.zc_name); 4690219089Spjd switch (errno) { 4691219089Spjd case ENOMEM: 4692219089Spjd free(nvbuf); 4693219089Spjd nvsz = zc.zc_nvlist_dst_size; 4694219089Spjd goto tryagain; 4695219089Spjd 4696219089Spjd case ENOTSUP: 4697219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4698219089Spjd "pool must be upgraded")); 4699219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4700219089Spjd break; 4701219089Spjd case EINVAL: 4702219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4703219089Spjd break; 4704219089Spjd case ENOENT: 4705219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4706219089Spjd break; 4707219089Spjd default: 4708219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4709219089Spjd break; 4710219089Spjd } 4711219089Spjd } else { 4712219089Spjd /* success */ 4713219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 4714219089Spjd if (rc) { 4715219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 4716219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 4717219089Spjd zc.zc_name); 4718219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 4719219089Spjd } 4720219089Spjd } 4721219089Spjd 4722219089Spjd free(nvbuf); 4723219089Spjdout: 4724219089Spjd return (err); 4725219089Spjd} 4726219089Spjd 4727219089Spjdint 4728219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 4729219089Spjd{ 4730219089Spjd zfs_cmd_t zc = { 0 }; 4731219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4732219089Spjd char *nvbuf; 4733248571Smm char errbuf[1024]; 4734219089Spjd size_t nvsz; 4735219089Spjd int err; 4736219089Spjd 4737219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 4738219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4739219089Spjd 4740219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 4741219089Spjd assert(err == 0); 4742219089Spjd 4743219089Spjd nvbuf = malloc(nvsz); 4744219089Spjd 4745219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 4746219089Spjd assert(err == 0); 4747219089Spjd 4748219089Spjd zc.zc_nvlist_src_size = nvsz; 4749219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 4750219089Spjd zc.zc_perm_action = un; 4751219089Spjd 4752219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4753219089Spjd 4754219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 4755219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4756219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 4757219089Spjd zc.zc_name); 4758219089Spjd switch (errno) { 4759219089Spjd case ENOTSUP: 4760219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4761219089Spjd "pool must be upgraded")); 4762219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4763219089Spjd break; 4764219089Spjd case EINVAL: 4765219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4766219089Spjd break; 4767219089Spjd case ENOENT: 4768219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4769219089Spjd break; 4770219089Spjd default: 4771219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4772219089Spjd break; 4773219089Spjd } 4774219089Spjd } 4775219089Spjd 4776219089Spjd free(nvbuf); 4777219089Spjd 4778219089Spjd return (err); 4779219089Spjd} 4780219089Spjd 4781219089Spjdint 4782219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 4783219089Spjd{ 4784248571Smm int err; 4785248571Smm char errbuf[1024]; 4786219089Spjd 4787248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 4788219089Spjd 4789248571Smm if (err != 0) { 4790248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4791219089Spjd 4792219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 4793219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 4794248571Smm zhp->zfs_name); 4795248571Smm switch (err) { 4796219089Spjd case ENOTSUP: 4797219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4798219089Spjd "pool must be upgraded")); 4799219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 4800219089Spjd break; 4801219089Spjd case EINVAL: 4802219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 4803219089Spjd break; 4804219089Spjd case ENOENT: 4805219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 4806219089Spjd break; 4807219089Spjd default: 4808219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 4809219089Spjd break; 4810219089Spjd } 4811219089Spjd } 4812219089Spjd 4813219089Spjd return (err); 4814219089Spjd} 4815219089Spjd 4816251629Sdelphij/* 4817251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 4818251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 4819251629Sdelphij * suite's shell version in reservation.kshlib. 4820251629Sdelphij */ 4821219089Spjduint64_t 4822219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 4823219089Spjd{ 4824219089Spjd uint64_t numdb; 4825219089Spjd uint64_t nblocks, volblocksize; 4826219089Spjd int ncopies; 4827219089Spjd char *strval; 4828219089Spjd 4829219089Spjd if (nvlist_lookup_string(props, 4830219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 4831219089Spjd ncopies = atoi(strval); 4832219089Spjd else 4833219089Spjd ncopies = 1; 4834219089Spjd if (nvlist_lookup_uint64(props, 4835219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 4836219089Spjd &volblocksize) != 0) 4837219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 4838219089Spjd nblocks = volsize/volblocksize; 4839219089Spjd /* start with metadnode L0-L6 */ 4840219089Spjd numdb = 7; 4841219089Spjd /* calculate number of indirects */ 4842219089Spjd while (nblocks > 1) { 4843219089Spjd nblocks += DNODES_PER_LEVEL - 1; 4844219089Spjd nblocks /= DNODES_PER_LEVEL; 4845219089Spjd numdb += nblocks; 4846219089Spjd } 4847219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 4848219089Spjd volsize *= ncopies; 4849219089Spjd /* 4850219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 4851219089Spjd * compressed, but in practice they compress down to about 4852219089Spjd * 1100 bytes 4853219089Spjd */ 4854219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 4855219089Spjd volsize += numdb; 4856219089Spjd return (volsize); 4857219089Spjd} 4858219089Spjd 4859168404Spjd/* 4860168404Spjd * Attach/detach the given filesystem to/from the given jail. 4861168404Spjd */ 4862168404Spjdint 4863168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 4864168404Spjd{ 4865168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4866168404Spjd zfs_cmd_t zc = { 0 }; 4867168404Spjd char errbuf[1024]; 4868224525Smm unsigned long cmd; 4869224525Smm int ret; 4870168404Spjd 4871168404Spjd if (attach) { 4872168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4873168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 4874168404Spjd } else { 4875168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4876249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 4877168404Spjd } 4878168404Spjd 4879168404Spjd switch (zhp->zfs_type) { 4880168404Spjd case ZFS_TYPE_VOLUME: 4881168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4882168404Spjd "volumes can not be jailed")); 4883168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4884168404Spjd case ZFS_TYPE_SNAPSHOT: 4885168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4886168404Spjd "snapshots can not be jailed")); 4887168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4888168404Spjd } 4889168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 4890168404Spjd 4891168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4892168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4893168404Spjd zc.zc_jailid = jailid; 4894168404Spjd 4895168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 4896168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 4897168404Spjd zfs_standard_error(hdl, errno, errbuf); 4898168404Spjd 4899168404Spjd return (ret); 4900168404Spjd} 4901