libzfs_dataset.c revision 342943
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. 24339103Smav * Copyright (c) 2018, Joyent, Inc. All rights reserved. 25325139Savg * Copyright (c) 2011, 2016 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. 30296519Smav * Copyright (c) 2014 Integros [integros.com] 31307050Smav * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> 32329489Smav * Copyright 2017 Nexenta Systems, Inc. 33321577Smav * Copyright 2017 RackTop Systems. 34168404Spjd */ 35168404Spjd 36168404Spjd#include <ctype.h> 37168404Spjd#include <errno.h> 38168404Spjd#include <libintl.h> 39168404Spjd#include <math.h> 40168404Spjd#include <stdio.h> 41168404Spjd#include <stdlib.h> 42168404Spjd#include <strings.h> 43168404Spjd#include <unistd.h> 44185029Spjd#include <stddef.h> 45168404Spjd#include <zone.h> 46168404Spjd#include <fcntl.h> 47168404Spjd#include <sys/mntent.h> 48168404Spjd#include <sys/mount.h> 49185029Spjd#include <priv.h> 50185029Spjd#include <pwd.h> 51185029Spjd#include <grp.h> 52185029Spjd#include <stddef.h> 53339118Smav#ifdef illumos 54209962Smm#include <idmap.h> 55339118Smav#endif 56168404Spjd 57219089Spjd#include <sys/dnode.h> 58168404Spjd#include <sys/spa.h> 59168404Spjd#include <sys/zap.h> 60209962Smm#include <sys/misc.h> 61168404Spjd#include <libzfs.h> 62168404Spjd 63168404Spjd#include "zfs_namecheck.h" 64168404Spjd#include "zfs_prop.h" 65168404Spjd#include "libzfs_impl.h" 66185029Spjd#include "zfs_deleg.h" 67168404Spjd 68209962Smmstatic int userquota_propname_decode(const char *propname, boolean_t zoned, 69209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); 70168676Spjd 71168404Spjd/* 72168404Spjd * Given a single type (not a mask of types), return the type in a human 73168404Spjd * readable form. 74168404Spjd */ 75168404Spjdconst char * 76168404Spjdzfs_type_to_name(zfs_type_t type) 77168404Spjd{ 78168404Spjd switch (type) { 79168404Spjd case ZFS_TYPE_FILESYSTEM: 80168404Spjd return (dgettext(TEXT_DOMAIN, "filesystem")); 81168404Spjd case ZFS_TYPE_SNAPSHOT: 82168404Spjd return (dgettext(TEXT_DOMAIN, "snapshot")); 83168404Spjd case ZFS_TYPE_VOLUME: 84168404Spjd return (dgettext(TEXT_DOMAIN, "volume")); 85307050Smav case ZFS_TYPE_POOL: 86307050Smav return (dgettext(TEXT_DOMAIN, "pool")); 87307050Smav case ZFS_TYPE_BOOKMARK: 88307050Smav return (dgettext(TEXT_DOMAIN, "bookmark")); 89307050Smav default: 90307050Smav assert(!"unhandled zfs_type_t"); 91168404Spjd } 92168404Spjd 93168404Spjd return (NULL); 94168404Spjd} 95168404Spjd 96168404Spjd/* 97168404Spjd * Validate a ZFS path. This is used even before trying to open the dataset, to 98209962Smm * provide a more meaningful error message. We call zfs_error_aux() to 99209962Smm * explain exactly why the name was not valid. 100168404Spjd */ 101219089Spjdint 102185029Spjdzfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 103185029Spjd boolean_t modifying) 104168404Spjd{ 105168404Spjd namecheck_err_t why; 106168404Spjd char what; 107168404Spjd 108321534Smav if (entity_namecheck(path, &why, &what) != 0) { 109168404Spjd if (hdl != NULL) { 110168404Spjd switch (why) { 111168404Spjd case NAME_ERR_TOOLONG: 112168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 113168404Spjd "name is too long")); 114168404Spjd break; 115168404Spjd 116168404Spjd case NAME_ERR_LEADING_SLASH: 117168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 118168404Spjd "leading slash in name")); 119168404Spjd break; 120168404Spjd 121168404Spjd case NAME_ERR_EMPTY_COMPONENT: 122168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 123168404Spjd "empty component in name")); 124168404Spjd break; 125168404Spjd 126168404Spjd case NAME_ERR_TRAILING_SLASH: 127168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 128168404Spjd "trailing slash in name")); 129168404Spjd break; 130168404Spjd 131168404Spjd case NAME_ERR_INVALCHAR: 132168404Spjd zfs_error_aux(hdl, 133168404Spjd dgettext(TEXT_DOMAIN, "invalid character " 134168404Spjd "'%c' in name"), what); 135168404Spjd break; 136168404Spjd 137321534Smav case NAME_ERR_MULTIPLE_DELIMITERS: 138168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 139321534Smav "multiple '@' and/or '#' delimiters in " 140321534Smav "name")); 141168404Spjd break; 142168404Spjd 143168404Spjd case NAME_ERR_NOLETTER: 144168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 145168404Spjd "pool doesn't begin with a letter")); 146168404Spjd break; 147168404Spjd 148168404Spjd case NAME_ERR_RESERVED: 149168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 150168404Spjd "name is reserved")); 151168404Spjd break; 152168404Spjd 153168404Spjd case NAME_ERR_DISKLIKE: 154168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 155168404Spjd "reserved disk name")); 156168404Spjd break; 157307050Smav 158307050Smav default: 159307050Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 160307050Smav "(%d) not defined"), why); 161307050Smav break; 162168404Spjd } 163168404Spjd } 164168404Spjd 165168404Spjd return (0); 166168404Spjd } 167168404Spjd 168168404Spjd if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { 169168404Spjd if (hdl != NULL) 170168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 171321534Smav "snapshot delimiter '@' is not expected here")); 172168404Spjd return (0); 173168404Spjd } 174168404Spjd 175168404Spjd if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { 176168404Spjd if (hdl != NULL) 177168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 178168404Spjd "missing '@' delimiter in snapshot name")); 179168404Spjd return (0); 180168404Spjd } 181168404Spjd 182321534Smav if (!(type & ZFS_TYPE_BOOKMARK) && strchr(path, '#') != NULL) { 183321534Smav if (hdl != NULL) 184321534Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 185321534Smav "bookmark delimiter '#' is not expected here")); 186321534Smav return (0); 187321534Smav } 188321534Smav 189321534Smav if (type == ZFS_TYPE_BOOKMARK && strchr(path, '#') == NULL) { 190321534Smav if (hdl != NULL) 191321534Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 192321534Smav "missing '#' delimiter in bookmark name")); 193321534Smav return (0); 194321534Smav } 195321534Smav 196185029Spjd if (modifying && strchr(path, '%') != NULL) { 197185029Spjd if (hdl != NULL) 198185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 199185029Spjd "invalid character %c in name"), '%'); 200185029Spjd return (0); 201185029Spjd } 202185029Spjd 203168404Spjd return (-1); 204168404Spjd} 205168404Spjd 206168404Spjdint 207168404Spjdzfs_name_valid(const char *name, zfs_type_t type) 208168404Spjd{ 209185029Spjd if (type == ZFS_TYPE_POOL) 210185029Spjd return (zpool_name_valid(NULL, B_FALSE, name)); 211185029Spjd return (zfs_validate_name(NULL, name, type, B_FALSE)); 212168404Spjd} 213168404Spjd 214168404Spjd/* 215168404Spjd * This function takes the raw DSL properties, and filters out the user-defined 216168404Spjd * properties into a separate nvlist. 217168404Spjd */ 218185029Spjdstatic nvlist_t * 219185029Spjdprocess_user_props(zfs_handle_t *zhp, nvlist_t *props) 220168404Spjd{ 221168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 222168404Spjd nvpair_t *elem; 223168404Spjd nvlist_t *propval; 224185029Spjd nvlist_t *nvl; 225168404Spjd 226185029Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { 227185029Spjd (void) no_memory(hdl); 228185029Spjd return (NULL); 229185029Spjd } 230168404Spjd 231168404Spjd elem = NULL; 232185029Spjd while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 233168404Spjd if (!zfs_prop_user(nvpair_name(elem))) 234168404Spjd continue; 235168404Spjd 236168404Spjd verify(nvpair_value_nvlist(elem, &propval) == 0); 237185029Spjd if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { 238185029Spjd nvlist_free(nvl); 239185029Spjd (void) no_memory(hdl); 240185029Spjd return (NULL); 241185029Spjd } 242168404Spjd } 243168404Spjd 244185029Spjd return (nvl); 245168404Spjd} 246168404Spjd 247185029Spjdstatic zpool_handle_t * 248185029Spjdzpool_add_handle(zfs_handle_t *zhp, const char *pool_name) 249185029Spjd{ 250185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 251185029Spjd zpool_handle_t *zph; 252185029Spjd 253185029Spjd if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { 254185029Spjd if (hdl->libzfs_pool_handles != NULL) 255185029Spjd zph->zpool_next = hdl->libzfs_pool_handles; 256185029Spjd hdl->libzfs_pool_handles = zph; 257185029Spjd } 258185029Spjd return (zph); 259185029Spjd} 260185029Spjd 261185029Spjdstatic zpool_handle_t * 262185029Spjdzpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) 263185029Spjd{ 264185029Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 265185029Spjd zpool_handle_t *zph = hdl->libzfs_pool_handles; 266185029Spjd 267185029Spjd while ((zph != NULL) && 268185029Spjd (strncmp(pool_name, zpool_get_name(zph), len) != 0)) 269185029Spjd zph = zph->zpool_next; 270185029Spjd return (zph); 271185029Spjd} 272185029Spjd 273168404Spjd/* 274185029Spjd * Returns a handle to the pool that contains the provided dataset. 275185029Spjd * If a handle to that pool already exists then that handle is returned. 276185029Spjd * Otherwise, a new handle is created and added to the list of handles. 277185029Spjd */ 278185029Spjdstatic zpool_handle_t * 279185029Spjdzpool_handle(zfs_handle_t *zhp) 280185029Spjd{ 281185029Spjd char *pool_name; 282185029Spjd int len; 283185029Spjd zpool_handle_t *zph; 284185029Spjd 285260183Sdelphij len = strcspn(zhp->zfs_name, "/@#") + 1; 286185029Spjd pool_name = zfs_alloc(zhp->zfs_hdl, len); 287185029Spjd (void) strlcpy(pool_name, zhp->zfs_name, len); 288185029Spjd 289185029Spjd zph = zpool_find_handle(zhp, pool_name, len); 290185029Spjd if (zph == NULL) 291185029Spjd zph = zpool_add_handle(zhp, pool_name); 292185029Spjd 293185029Spjd free(pool_name); 294185029Spjd return (zph); 295185029Spjd} 296185029Spjd 297185029Spjdvoid 298185029Spjdzpool_free_handles(libzfs_handle_t *hdl) 299185029Spjd{ 300185029Spjd zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; 301185029Spjd 302185029Spjd while (zph != NULL) { 303185029Spjd next = zph->zpool_next; 304185029Spjd zpool_close(zph); 305185029Spjd zph = next; 306185029Spjd } 307185029Spjd hdl->libzfs_pool_handles = NULL; 308185029Spjd} 309185029Spjd 310185029Spjd/* 311168404Spjd * Utility function to gather stats (objset and zpl) for the given object. 312168404Spjd */ 313219089Spjdstatic int 314209962Smmget_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) 315168404Spjd{ 316168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 317168404Spjd 318209962Smm (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); 319168404Spjd 320209962Smm while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { 321168404Spjd if (errno == ENOMEM) { 322209962Smm if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { 323168404Spjd return (-1); 324168404Spjd } 325168404Spjd } else { 326168404Spjd return (-1); 327168404Spjd } 328168404Spjd } 329209962Smm return (0); 330209962Smm} 331168404Spjd 332219089Spjd/* 333219089Spjd * Utility function to get the received properties of the given object. 334219089Spjd */ 335209962Smmstatic int 336219089Spjdget_recvd_props_ioctl(zfs_handle_t *zhp) 337219089Spjd{ 338219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 339219089Spjd nvlist_t *recvdprops; 340219089Spjd zfs_cmd_t zc = { 0 }; 341219089Spjd int err; 342219089Spjd 343219089Spjd if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 344219089Spjd return (-1); 345219089Spjd 346219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 347219089Spjd 348219089Spjd while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { 349219089Spjd if (errno == ENOMEM) { 350219089Spjd if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 351219089Spjd return (-1); 352219089Spjd } 353219089Spjd } else { 354219089Spjd zcmd_free_nvlists(&zc); 355219089Spjd return (-1); 356219089Spjd } 357219089Spjd } 358219089Spjd 359219089Spjd err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); 360219089Spjd zcmd_free_nvlists(&zc); 361219089Spjd if (err != 0) 362219089Spjd return (-1); 363219089Spjd 364219089Spjd nvlist_free(zhp->zfs_recvd_props); 365219089Spjd zhp->zfs_recvd_props = recvdprops; 366219089Spjd 367219089Spjd return (0); 368219089Spjd} 369219089Spjd 370219089Spjdstatic int 371209962Smmput_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) 372209962Smm{ 373209962Smm nvlist_t *allprops, *userprops; 374168404Spjd 375209962Smm zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ 376209962Smm 377209962Smm if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { 378168404Spjd return (-1); 379168404Spjd } 380168404Spjd 381209962Smm /* 382209962Smm * XXX Why do we store the user props separately, in addition to 383209962Smm * storing them in zfs_props? 384209962Smm */ 385185029Spjd if ((userprops = process_user_props(zhp, allprops)) == NULL) { 386185029Spjd nvlist_free(allprops); 387168404Spjd return (-1); 388185029Spjd } 389168404Spjd 390185029Spjd nvlist_free(zhp->zfs_props); 391185029Spjd nvlist_free(zhp->zfs_user_props); 392185029Spjd 393185029Spjd zhp->zfs_props = allprops; 394185029Spjd zhp->zfs_user_props = userprops; 395185029Spjd 396168404Spjd return (0); 397168404Spjd} 398168404Spjd 399209962Smmstatic int 400209962Smmget_stats(zfs_handle_t *zhp) 401209962Smm{ 402209962Smm int rc = 0; 403209962Smm zfs_cmd_t zc = { 0 }; 404209962Smm 405209962Smm if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 406209962Smm return (-1); 407209962Smm if (get_stats_ioctl(zhp, &zc) != 0) 408209962Smm rc = -1; 409209962Smm else if (put_stats_zhdl(zhp, &zc) != 0) 410209962Smm rc = -1; 411209962Smm zcmd_free_nvlists(&zc); 412209962Smm return (rc); 413209962Smm} 414209962Smm 415168404Spjd/* 416168404Spjd * Refresh the properties currently stored in the handle. 417168404Spjd */ 418168404Spjdvoid 419168404Spjdzfs_refresh_properties(zfs_handle_t *zhp) 420168404Spjd{ 421168404Spjd (void) get_stats(zhp); 422168404Spjd} 423168404Spjd 424168404Spjd/* 425168404Spjd * Makes a handle from the given dataset name. Used by zfs_open() and 426168404Spjd * zfs_iter_* to create child handles on the fly. 427168404Spjd */ 428209962Smmstatic int 429209962Smmmake_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) 430168404Spjd{ 431219089Spjd if (put_stats_zhdl(zhp, zc) != 0) 432209962Smm return (-1); 433168404Spjd 434168404Spjd /* 435168404Spjd * We've managed to open the dataset and gather statistics. Determine 436168404Spjd * the high-level type. 437168404Spjd */ 438168404Spjd if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 439168404Spjd zhp->zfs_head_type = ZFS_TYPE_VOLUME; 440168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 441168404Spjd zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; 442168404Spjd else 443168404Spjd abort(); 444168404Spjd 445168404Spjd if (zhp->zfs_dmustats.dds_is_snapshot) 446168404Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 447168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) 448168404Spjd zhp->zfs_type = ZFS_TYPE_VOLUME; 449168404Spjd else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) 450168404Spjd zhp->zfs_type = ZFS_TYPE_FILESYSTEM; 451168404Spjd else 452168404Spjd abort(); /* we should never see any other types */ 453168404Spjd 454219089Spjd if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) 455219089Spjd return (-1); 456219089Spjd 457209962Smm return (0); 458209962Smm} 459209962Smm 460209962Smmzfs_handle_t * 461209962Smmmake_dataset_handle(libzfs_handle_t *hdl, const char *path) 462209962Smm{ 463209962Smm zfs_cmd_t zc = { 0 }; 464209962Smm 465209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 466209962Smm 467209962Smm if (zhp == NULL) 468209962Smm return (NULL); 469209962Smm 470209962Smm zhp->zfs_hdl = hdl; 471209962Smm (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 472209962Smm if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { 473209962Smm free(zhp); 474209962Smm return (NULL); 475209962Smm } 476209962Smm if (get_stats_ioctl(zhp, &zc) == -1) { 477209962Smm zcmd_free_nvlists(&zc); 478209962Smm free(zhp); 479209962Smm return (NULL); 480209962Smm } 481209962Smm if (make_dataset_handle_common(zhp, &zc) == -1) { 482209962Smm free(zhp); 483209962Smm zhp = NULL; 484209962Smm } 485209962Smm zcmd_free_nvlists(&zc); 486168404Spjd return (zhp); 487168404Spjd} 488168404Spjd 489228103Smmzfs_handle_t * 490209962Smmmake_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) 491209962Smm{ 492209962Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 493209962Smm 494209962Smm if (zhp == NULL) 495209962Smm return (NULL); 496209962Smm 497209962Smm zhp->zfs_hdl = hdl; 498209962Smm (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 499209962Smm if (make_dataset_handle_common(zhp, zc) == -1) { 500209962Smm free(zhp); 501209962Smm return (NULL); 502209962Smm } 503209962Smm return (zhp); 504209962Smm} 505209962Smm 506228103Smmzfs_handle_t * 507230438Spjdmake_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) 508230438Spjd{ 509230438Spjd zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 510230438Spjd 511230438Spjd if (zhp == NULL) 512230438Spjd return (NULL); 513230438Spjd 514230438Spjd zhp->zfs_hdl = pzhp->zfs_hdl; 515230438Spjd (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); 516230438Spjd zhp->zfs_head_type = pzhp->zfs_type; 517230438Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 518230438Spjd zhp->zpool_hdl = zpool_handle(zhp); 519230438Spjd return (zhp); 520230438Spjd} 521230438Spjd 522230438Spjdzfs_handle_t * 523228103Smmzfs_handle_dup(zfs_handle_t *zhp_orig) 524228103Smm{ 525228103Smm zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 526228103Smm 527228103Smm if (zhp == NULL) 528228103Smm return (NULL); 529228103Smm 530228103Smm zhp->zfs_hdl = zhp_orig->zfs_hdl; 531228103Smm zhp->zpool_hdl = zhp_orig->zpool_hdl; 532228103Smm (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, 533228103Smm sizeof (zhp->zfs_name)); 534228103Smm zhp->zfs_type = zhp_orig->zfs_type; 535228103Smm zhp->zfs_head_type = zhp_orig->zfs_head_type; 536228103Smm zhp->zfs_dmustats = zhp_orig->zfs_dmustats; 537228103Smm if (zhp_orig->zfs_props != NULL) { 538228103Smm if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { 539228103Smm (void) no_memory(zhp->zfs_hdl); 540228103Smm zfs_close(zhp); 541228103Smm return (NULL); 542228103Smm } 543228103Smm } 544228103Smm if (zhp_orig->zfs_user_props != NULL) { 545228103Smm if (nvlist_dup(zhp_orig->zfs_user_props, 546228103Smm &zhp->zfs_user_props, 0) != 0) { 547228103Smm (void) no_memory(zhp->zfs_hdl); 548228103Smm zfs_close(zhp); 549228103Smm return (NULL); 550228103Smm } 551228103Smm } 552228103Smm if (zhp_orig->zfs_recvd_props != NULL) { 553228103Smm if (nvlist_dup(zhp_orig->zfs_recvd_props, 554228103Smm &zhp->zfs_recvd_props, 0)) { 555228103Smm (void) no_memory(zhp->zfs_hdl); 556228103Smm zfs_close(zhp); 557228103Smm return (NULL); 558228103Smm } 559228103Smm } 560228103Smm zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; 561228103Smm if (zhp_orig->zfs_mntopts != NULL) { 562228103Smm zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, 563228103Smm zhp_orig->zfs_mntopts); 564228103Smm } 565228103Smm zhp->zfs_props_table = zhp_orig->zfs_props_table; 566228103Smm return (zhp); 567228103Smm} 568228103Smm 569260183Sdelphijboolean_t 570260183Sdelphijzfs_bookmark_exists(const char *path) 571260183Sdelphij{ 572260183Sdelphij nvlist_t *bmarks; 573260183Sdelphij nvlist_t *props; 574307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 575260183Sdelphij char *bmark_name; 576260183Sdelphij char *pound; 577260183Sdelphij int err; 578260183Sdelphij boolean_t rv; 579260183Sdelphij 580260183Sdelphij 581260183Sdelphij (void) strlcpy(fsname, path, sizeof (fsname)); 582260183Sdelphij pound = strchr(fsname, '#'); 583260183Sdelphij if (pound == NULL) 584260183Sdelphij return (B_FALSE); 585260183Sdelphij 586260183Sdelphij *pound = '\0'; 587260183Sdelphij bmark_name = pound + 1; 588260183Sdelphij props = fnvlist_alloc(); 589260183Sdelphij err = lzc_get_bookmarks(fsname, props, &bmarks); 590260183Sdelphij nvlist_free(props); 591260183Sdelphij if (err != 0) { 592260183Sdelphij nvlist_free(bmarks); 593260183Sdelphij return (B_FALSE); 594260183Sdelphij } 595260183Sdelphij 596260183Sdelphij rv = nvlist_exists(bmarks, bmark_name); 597260183Sdelphij nvlist_free(bmarks); 598260183Sdelphij return (rv); 599260183Sdelphij} 600260183Sdelphij 601260183Sdelphijzfs_handle_t * 602260183Sdelphijmake_bookmark_handle(zfs_handle_t *parent, const char *path, 603260183Sdelphij nvlist_t *bmark_props) 604260183Sdelphij{ 605260183Sdelphij zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); 606260183Sdelphij 607260183Sdelphij if (zhp == NULL) 608260183Sdelphij return (NULL); 609260183Sdelphij 610260183Sdelphij /* Fill in the name. */ 611260183Sdelphij zhp->zfs_hdl = parent->zfs_hdl; 612260183Sdelphij (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 613260183Sdelphij 614260183Sdelphij /* Set the property lists. */ 615260183Sdelphij if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) { 616260183Sdelphij free(zhp); 617260183Sdelphij return (NULL); 618260183Sdelphij } 619260183Sdelphij 620260183Sdelphij /* Set the types. */ 621260183Sdelphij zhp->zfs_head_type = parent->zfs_head_type; 622260183Sdelphij zhp->zfs_type = ZFS_TYPE_BOOKMARK; 623260183Sdelphij 624260183Sdelphij if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) { 625260183Sdelphij nvlist_free(zhp->zfs_props); 626260183Sdelphij free(zhp); 627260183Sdelphij return (NULL); 628260183Sdelphij } 629260183Sdelphij 630260183Sdelphij return (zhp); 631260183Sdelphij} 632260183Sdelphij 633321534Smavstruct zfs_open_bookmarks_cb_data { 634321534Smav const char *path; 635321534Smav zfs_handle_t *zhp; 636321534Smav}; 637321534Smav 638321534Smavstatic int 639321534Smavzfs_open_bookmarks_cb(zfs_handle_t *zhp, void *data) 640321534Smav{ 641321534Smav struct zfs_open_bookmarks_cb_data *dp = data; 642321534Smav 643321534Smav /* 644321534Smav * Is it the one we are looking for? 645321534Smav */ 646321534Smav if (strcmp(dp->path, zfs_get_name(zhp)) == 0) { 647321534Smav /* 648321534Smav * We found it. Save it and let the caller know we are done. 649321534Smav */ 650321534Smav dp->zhp = zhp; 651321534Smav return (EEXIST); 652321534Smav } 653321534Smav 654321534Smav /* 655321534Smav * Not found. Close the handle and ask for another one. 656321534Smav */ 657321534Smav zfs_close(zhp); 658321534Smav return (0); 659321534Smav} 660321534Smav 661168404Spjd/* 662321534Smav * Opens the given snapshot, bookmark, filesystem, or volume. The 'types' 663168404Spjd * argument is a mask of acceptable types. The function will print an 664168404Spjd * appropriate error message and return NULL if it can't be opened. 665168404Spjd */ 666168404Spjdzfs_handle_t * 667168404Spjdzfs_open(libzfs_handle_t *hdl, const char *path, int types) 668168404Spjd{ 669168404Spjd zfs_handle_t *zhp; 670168404Spjd char errbuf[1024]; 671321534Smav char *bookp; 672168404Spjd 673168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 674168404Spjd dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); 675168404Spjd 676168404Spjd /* 677168404Spjd * Validate the name before we even try to open it. 678168404Spjd */ 679321534Smav if (!zfs_validate_name(hdl, path, types, B_FALSE)) { 680168404Spjd (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 681168404Spjd return (NULL); 682168404Spjd } 683168404Spjd 684168404Spjd /* 685321534Smav * Bookmarks needs to be handled separately. 686168404Spjd */ 687321534Smav bookp = strchr(path, '#'); 688321534Smav if (bookp == NULL) { 689321534Smav /* 690321534Smav * Try to get stats for the dataset, which will tell us if it 691321534Smav * exists. 692321534Smav */ 693321534Smav errno = 0; 694321534Smav if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 695321534Smav (void) zfs_standard_error(hdl, errno, errbuf); 696321534Smav return (NULL); 697321534Smav } 698321534Smav } else { 699321534Smav char dsname[ZFS_MAX_DATASET_NAME_LEN]; 700321534Smav zfs_handle_t *pzhp; 701321534Smav struct zfs_open_bookmarks_cb_data cb_data = {path, NULL}; 702321534Smav 703321534Smav /* 704321534Smav * We need to cut out '#' and everything after '#' 705321534Smav * to get the parent dataset name only. 706321534Smav */ 707321534Smav assert(bookp - path < sizeof (dsname)); 708321534Smav (void) strncpy(dsname, path, bookp - path); 709321534Smav dsname[bookp - path] = '\0'; 710321534Smav 711321534Smav /* 712321534Smav * Create handle for the parent dataset. 713321534Smav */ 714321534Smav errno = 0; 715321534Smav if ((pzhp = make_dataset_handle(hdl, dsname)) == NULL) { 716321534Smav (void) zfs_standard_error(hdl, errno, errbuf); 717321534Smav return (NULL); 718321534Smav } 719321534Smav 720321534Smav /* 721321534Smav * Iterate bookmarks to find the right one. 722321534Smav */ 723321534Smav errno = 0; 724321534Smav if ((zfs_iter_bookmarks(pzhp, zfs_open_bookmarks_cb, 725321534Smav &cb_data) == 0) && (cb_data.zhp == NULL)) { 726321534Smav (void) zfs_error(hdl, EZFS_NOENT, errbuf); 727321534Smav zfs_close(pzhp); 728321534Smav return (NULL); 729321534Smav } 730321534Smav if (cb_data.zhp == NULL) { 731321534Smav (void) zfs_standard_error(hdl, errno, errbuf); 732321534Smav zfs_close(pzhp); 733321534Smav return (NULL); 734321534Smav } 735321534Smav zhp = cb_data.zhp; 736321534Smav 737321534Smav /* 738321534Smav * Cleanup. 739321534Smav */ 740321534Smav zfs_close(pzhp); 741168404Spjd } 742168404Spjd 743240870Spjd if (zhp == NULL) { 744240870Spjd char *at = strchr(path, '@'); 745240870Spjd 746240870Spjd if (at != NULL) 747240870Spjd *at = '\0'; 748240870Spjd errno = 0; 749240870Spjd if ((zhp = make_dataset_handle(hdl, path)) == NULL) { 750240870Spjd (void) zfs_standard_error(hdl, errno, errbuf); 751240870Spjd return (NULL); 752240870Spjd } 753240870Spjd if (at != NULL) 754240870Spjd *at = '@'; 755240870Spjd (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); 756240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 757240870Spjd } 758240870Spjd 759168404Spjd if (!(types & zhp->zfs_type)) { 760168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 761168404Spjd zfs_close(zhp); 762168404Spjd return (NULL); 763168404Spjd } 764168404Spjd 765168404Spjd return (zhp); 766168404Spjd} 767168404Spjd 768168404Spjd/* 769168404Spjd * Release a ZFS handle. Nothing to do but free the associated memory. 770168404Spjd */ 771168404Spjdvoid 772168404Spjdzfs_close(zfs_handle_t *zhp) 773168404Spjd{ 774168404Spjd if (zhp->zfs_mntopts) 775168404Spjd free(zhp->zfs_mntopts); 776168404Spjd nvlist_free(zhp->zfs_props); 777168404Spjd nvlist_free(zhp->zfs_user_props); 778219089Spjd nvlist_free(zhp->zfs_recvd_props); 779168404Spjd free(zhp); 780168404Spjd} 781168404Spjd 782209962Smmtypedef struct mnttab_node { 783209962Smm struct mnttab mtn_mt; 784209962Smm avl_node_t mtn_node; 785209962Smm} mnttab_node_t; 786209962Smm 787209962Smmstatic int 788209962Smmlibzfs_mnttab_cache_compare(const void *arg1, const void *arg2) 789209962Smm{ 790339158Smav const mnttab_node_t *mtn1 = (const mnttab_node_t *)arg1; 791339158Smav const mnttab_node_t *mtn2 = (const mnttab_node_t *)arg2; 792209962Smm int rv; 793209962Smm 794209962Smm rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); 795209962Smm 796339158Smav return (AVL_ISIGN(rv)); 797209962Smm} 798209962Smm 799209962Smmvoid 800209962Smmlibzfs_mnttab_init(libzfs_handle_t *hdl) 801209962Smm{ 802209962Smm assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); 803209962Smm avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, 804209962Smm sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); 805209962Smm} 806209962Smm 807209962Smmvoid 808209962Smmlibzfs_mnttab_update(libzfs_handle_t *hdl) 809209962Smm{ 810209962Smm struct mnttab entry; 811209962Smm 812209962Smm rewind(hdl->libzfs_mnttab); 813209962Smm while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 814209962Smm mnttab_node_t *mtn; 815209962Smm 816209962Smm if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 817209962Smm continue; 818209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 819209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); 820209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); 821209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); 822209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); 823209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 824209962Smm } 825209962Smm} 826209962Smm 827209962Smmvoid 828209962Smmlibzfs_mnttab_fini(libzfs_handle_t *hdl) 829209962Smm{ 830209962Smm void *cookie = NULL; 831209962Smm mnttab_node_t *mtn; 832209962Smm 833307050Smav while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) 834307050Smav != NULL) { 835209962Smm free(mtn->mtn_mt.mnt_special); 836209962Smm free(mtn->mtn_mt.mnt_mountp); 837209962Smm free(mtn->mtn_mt.mnt_fstype); 838209962Smm free(mtn->mtn_mt.mnt_mntopts); 839209962Smm free(mtn); 840209962Smm } 841209962Smm avl_destroy(&hdl->libzfs_mnttab_cache); 842209962Smm} 843209962Smm 844209962Smmvoid 845209962Smmlibzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) 846209962Smm{ 847209962Smm hdl->libzfs_mnttab_enable = enable; 848209962Smm} 849209962Smm 850185029Spjdint 851209962Smmlibzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, 852209962Smm struct mnttab *entry) 853209962Smm{ 854209962Smm mnttab_node_t find; 855209962Smm mnttab_node_t *mtn; 856209962Smm 857209962Smm if (!hdl->libzfs_mnttab_enable) { 858209962Smm struct mnttab srch = { 0 }; 859209962Smm 860209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache)) 861209962Smm libzfs_mnttab_fini(hdl); 862209962Smm rewind(hdl->libzfs_mnttab); 863209962Smm srch.mnt_special = (char *)fsname; 864209962Smm srch.mnt_fstype = MNTTYPE_ZFS; 865209962Smm if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) 866209962Smm return (0); 867209962Smm else 868209962Smm return (ENOENT); 869209962Smm } 870209962Smm 871209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 872209962Smm libzfs_mnttab_update(hdl); 873209962Smm 874209962Smm find.mtn_mt.mnt_special = (char *)fsname; 875209962Smm mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); 876209962Smm if (mtn) { 877209962Smm *entry = mtn->mtn_mt; 878209962Smm return (0); 879209962Smm } 880209962Smm return (ENOENT); 881209962Smm} 882209962Smm 883209962Smmvoid 884209962Smmlibzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, 885209962Smm const char *mountp, const char *mntopts) 886209962Smm{ 887209962Smm mnttab_node_t *mtn; 888209962Smm 889209962Smm if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) 890209962Smm return; 891209962Smm mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); 892209962Smm mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); 893209962Smm mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); 894209962Smm mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); 895209962Smm mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); 896209962Smm avl_add(&hdl->libzfs_mnttab_cache, mtn); 897209962Smm} 898209962Smm 899209962Smmvoid 900209962Smmlibzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) 901209962Smm{ 902209962Smm mnttab_node_t find; 903209962Smm mnttab_node_t *ret; 904209962Smm 905209962Smm find.mtn_mt.mnt_special = (char *)fsname; 906307050Smav if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) 907307050Smav != NULL) { 908209962Smm avl_remove(&hdl->libzfs_mnttab_cache, ret); 909209962Smm free(ret->mtn_mt.mnt_special); 910209962Smm free(ret->mtn_mt.mnt_mountp); 911209962Smm free(ret->mtn_mt.mnt_fstype); 912209962Smm free(ret->mtn_mt.mnt_mntopts); 913209962Smm free(ret); 914209962Smm } 915209962Smm} 916209962Smm 917209962Smmint 918185029Spjdzfs_spa_version(zfs_handle_t *zhp, int *spa_version) 919168404Spjd{ 920185029Spjd zpool_handle_t *zpool_handle = zhp->zpool_hdl; 921168404Spjd 922185029Spjd if (zpool_handle == NULL) 923168404Spjd return (-1); 924168404Spjd 925185029Spjd *spa_version = zpool_get_prop_int(zpool_handle, 926185029Spjd ZPOOL_PROP_VERSION, NULL); 927168404Spjd return (0); 928168404Spjd} 929168404Spjd 930168404Spjd/* 931185029Spjd * The choice of reservation property depends on the SPA version. 932168404Spjd */ 933168404Spjdstatic int 934185029Spjdzfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) 935168404Spjd{ 936185029Spjd int spa_version; 937168404Spjd 938185029Spjd if (zfs_spa_version(zhp, &spa_version) < 0) 939168404Spjd return (-1); 940168404Spjd 941185029Spjd if (spa_version >= SPA_VERSION_REFRESERVATION) 942185029Spjd *resv_prop = ZFS_PROP_REFRESERVATION; 943185029Spjd else 944185029Spjd *resv_prop = ZFS_PROP_RESERVATION; 945168404Spjd 946168404Spjd return (0); 947168404Spjd} 948168404Spjd 949168404Spjd/* 950168404Spjd * Given an nvlist of properties to set, validates that they are correct, and 951168404Spjd * parses any numeric properties (index, boolean, etc) if they are specified as 952168404Spjd * strings. 953168404Spjd */ 954168404Spjdnvlist_t * 955185029Spjdzfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, 956289500Smav uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl, 957289500Smav const char *errbuf) 958168404Spjd{ 959168404Spjd nvpair_t *elem; 960168404Spjd uint64_t intval; 961168404Spjd char *strval; 962185029Spjd zfs_prop_t prop; 963168404Spjd nvlist_t *ret; 964185029Spjd int chosen_normal = -1; 965185029Spjd int chosen_utf = -1; 966168404Spjd 967168404Spjd if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { 968168404Spjd (void) no_memory(hdl); 969168404Spjd return (NULL); 970168404Spjd } 971168404Spjd 972209962Smm /* 973209962Smm * Make sure this property is valid and applies to this type. 974209962Smm */ 975209962Smm 976168404Spjd elem = NULL; 977168404Spjd while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { 978185029Spjd const char *propname = nvpair_name(elem); 979168404Spjd 980209962Smm prop = zfs_name_to_prop(propname); 981209962Smm if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { 982185029Spjd /* 983209962Smm * This is a user property: make sure it's a 984185029Spjd * string, and that it's less than ZAP_MAXNAMELEN. 985185029Spjd */ 986185029Spjd if (nvpair_type(elem) != DATA_TYPE_STRING) { 987185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 988185029Spjd "'%s' must be a string"), propname); 989185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 990185029Spjd goto error; 991168404Spjd } 992168404Spjd 993185029Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 994185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 995185029Spjd "property name '%s' is too long"), 996185029Spjd propname); 997185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 998185029Spjd goto error; 999185029Spjd } 1000185029Spjd 1001168404Spjd (void) nvpair_value_string(elem, &strval); 1002168404Spjd if (nvlist_add_string(ret, propname, strval) != 0) { 1003168404Spjd (void) no_memory(hdl); 1004168404Spjd goto error; 1005168404Spjd } 1006168404Spjd continue; 1007168404Spjd } 1008168404Spjd 1009209962Smm /* 1010209962Smm * Currently, only user properties can be modified on 1011209962Smm * snapshots. 1012209962Smm */ 1013185029Spjd if (type == ZFS_TYPE_SNAPSHOT) { 1014185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1015185029Spjd "this property can not be modified for snapshots")); 1016185029Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 1017185029Spjd goto error; 1018185029Spjd } 1019168404Spjd 1020209962Smm if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { 1021209962Smm zfs_userquota_prop_t uqtype; 1022209962Smm char newpropname[128]; 1023209962Smm char domain[128]; 1024209962Smm uint64_t rid; 1025209962Smm uint64_t valary[3]; 1026209962Smm 1027209962Smm if (userquota_propname_decode(propname, zoned, 1028209962Smm &uqtype, domain, sizeof (domain), &rid) != 0) { 1029209962Smm zfs_error_aux(hdl, 1030209962Smm dgettext(TEXT_DOMAIN, 1031209962Smm "'%s' has an invalid user/group name"), 1032209962Smm propname); 1033209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1034209962Smm goto error; 1035209962Smm } 1036209962Smm 1037209962Smm if (uqtype != ZFS_PROP_USERQUOTA && 1038209962Smm uqtype != ZFS_PROP_GROUPQUOTA) { 1039209962Smm zfs_error_aux(hdl, 1040209962Smm dgettext(TEXT_DOMAIN, "'%s' is readonly"), 1041209962Smm propname); 1042209962Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, 1043209962Smm errbuf); 1044209962Smm goto error; 1045209962Smm } 1046209962Smm 1047209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 1048209962Smm (void) nvpair_value_string(elem, &strval); 1049209962Smm if (strcmp(strval, "none") == 0) { 1050209962Smm intval = 0; 1051209962Smm } else if (zfs_nicestrtonum(hdl, 1052209962Smm strval, &intval) != 0) { 1053209962Smm (void) zfs_error(hdl, 1054209962Smm EZFS_BADPROP, errbuf); 1055209962Smm goto error; 1056209962Smm } 1057209962Smm } else if (nvpair_type(elem) == 1058209962Smm DATA_TYPE_UINT64) { 1059209962Smm (void) nvpair_value_uint64(elem, &intval); 1060209962Smm if (intval == 0) { 1061209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1062209962Smm "use 'none' to disable " 1063209962Smm "userquota/groupquota")); 1064209962Smm goto error; 1065209962Smm } 1066209962Smm } else { 1067209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1068209962Smm "'%s' must be a number"), propname); 1069209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1070209962Smm goto error; 1071209962Smm } 1072209962Smm 1073219089Spjd /* 1074219089Spjd * Encode the prop name as 1075219089Spjd * userquota@<hex-rid>-domain, to make it easy 1076219089Spjd * for the kernel to decode. 1077219089Spjd */ 1078209962Smm (void) snprintf(newpropname, sizeof (newpropname), 1079219089Spjd "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], 1080219089Spjd (longlong_t)rid, domain); 1081209962Smm valary[0] = uqtype; 1082209962Smm valary[1] = rid; 1083209962Smm valary[2] = intval; 1084209962Smm if (nvlist_add_uint64_array(ret, newpropname, 1085209962Smm valary, 3) != 0) { 1086209962Smm (void) no_memory(hdl); 1087209962Smm goto error; 1088209962Smm } 1089209962Smm continue; 1090228103Smm } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { 1091228103Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1092228103Smm "'%s' is readonly"), 1093228103Smm propname); 1094228103Smm (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1095228103Smm goto error; 1096209962Smm } 1097209962Smm 1098209962Smm if (prop == ZPROP_INVAL) { 1099209962Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1100209962Smm "invalid property '%s'"), propname); 1101209962Smm (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1102209962Smm goto error; 1103209962Smm } 1104209962Smm 1105168404Spjd if (!zfs_prop_valid_for_type(prop, type)) { 1106168404Spjd zfs_error_aux(hdl, 1107168404Spjd dgettext(TEXT_DOMAIN, "'%s' does not " 1108168404Spjd "apply to datasets of this type"), propname); 1109168404Spjd (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); 1110168404Spjd goto error; 1111168404Spjd } 1112168404Spjd 1113168404Spjd if (zfs_prop_readonly(prop) && 1114185029Spjd (!zfs_prop_setonce(prop) || zhp != NULL)) { 1115168404Spjd zfs_error_aux(hdl, 1116168404Spjd dgettext(TEXT_DOMAIN, "'%s' is readonly"), 1117168404Spjd propname); 1118168404Spjd (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 1119168404Spjd goto error; 1120168404Spjd } 1121168404Spjd 1122185029Spjd if (zprop_parse_value(hdl, elem, prop, type, ret, 1123185029Spjd &strval, &intval, errbuf) != 0) 1124185029Spjd goto error; 1125185029Spjd 1126168404Spjd /* 1127185029Spjd * Perform some additional checks for specific properties. 1128168404Spjd */ 1129185029Spjd switch (prop) { 1130185029Spjd case ZFS_PROP_VERSION: 1131185029Spjd { 1132185029Spjd int version; 1133168404Spjd 1134185029Spjd if (zhp == NULL) 1135185029Spjd break; 1136185029Spjd version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1137185029Spjd if (intval < version) { 1138168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1139185029Spjd "Can not downgrade; already at version %u"), 1140185029Spjd version); 1141168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1142168404Spjd goto error; 1143168404Spjd } 1144168404Spjd break; 1145168404Spjd } 1146168404Spjd 1147274337Sdelphij case ZFS_PROP_VOLBLOCKSIZE: 1148168404Spjd case ZFS_PROP_RECORDSIZE: 1149274337Sdelphij { 1150274337Sdelphij int maxbs = SPA_MAXBLOCKSIZE; 1151289500Smav if (zpool_hdl != NULL) { 1152289500Smav maxbs = zpool_get_prop_int(zpool_hdl, 1153274337Sdelphij ZPOOL_PROP_MAXBLOCKSIZE, NULL); 1154274337Sdelphij } 1155274337Sdelphij /* 1156274337Sdelphij * Volumes are limited to a volblocksize of 128KB, 1157274337Sdelphij * because they typically service workloads with 1158274337Sdelphij * small random writes, which incur a large performance 1159274337Sdelphij * penalty with large blocks. 1160274337Sdelphij */ 1161274337Sdelphij if (prop == ZFS_PROP_VOLBLOCKSIZE) 1162274337Sdelphij maxbs = SPA_OLD_MAXBLOCKSIZE; 1163274337Sdelphij /* 1164274337Sdelphij * The value must be a power of two between 1165274337Sdelphij * SPA_MINBLOCKSIZE and maxbs. 1166274337Sdelphij */ 1167168404Spjd if (intval < SPA_MINBLOCKSIZE || 1168274337Sdelphij intval > maxbs || !ISP2(intval)) { 1169168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1170274337Sdelphij "'%s' must be power of 2 from 512B " 1171274337Sdelphij "to %uKB"), propname, maxbs >> 10); 1172168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1173168404Spjd goto error; 1174168404Spjd } 1175168404Spjd break; 1176274337Sdelphij } 1177219089Spjd case ZFS_PROP_MLSLABEL: 1178219089Spjd { 1179277300Ssmh#ifdef illumos 1180219089Spjd /* 1181219089Spjd * Verify the mlslabel string and convert to 1182219089Spjd * internal hex label string. 1183219089Spjd */ 1184219089Spjd 1185219089Spjd m_label_t *new_sl; 1186219089Spjd char *hex = NULL; /* internal label string */ 1187219089Spjd 1188219089Spjd /* Default value is already OK. */ 1189219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 1190219089Spjd break; 1191219089Spjd 1192219089Spjd /* Verify the label can be converted to binary form */ 1193219089Spjd if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || 1194219089Spjd (str_to_label(strval, &new_sl, MAC_LABEL, 1195219089Spjd L_NO_CORRECTION, NULL) == -1)) { 1196219089Spjd goto badlabel; 1197168404Spjd } 1198168404Spjd 1199219089Spjd /* Now translate to hex internal label string */ 1200219089Spjd if (label_to_str(new_sl, &hex, M_INTERNAL, 1201219089Spjd DEF_NAMES) != 0) { 1202219089Spjd if (hex) 1203219089Spjd free(hex); 1204219089Spjd goto badlabel; 1205219089Spjd } 1206219089Spjd m_label_free(new_sl); 1207219089Spjd 1208219089Spjd /* If string is already in internal form, we're done. */ 1209219089Spjd if (strcmp(strval, hex) == 0) { 1210219089Spjd free(hex); 1211219089Spjd break; 1212219089Spjd } 1213219089Spjd 1214219089Spjd /* Replace the label string with the internal form. */ 1215219089Spjd (void) nvlist_remove(ret, zfs_prop_to_name(prop), 1216219089Spjd DATA_TYPE_STRING); 1217219089Spjd verify(nvlist_add_string(ret, zfs_prop_to_name(prop), 1218219089Spjd hex) == 0); 1219219089Spjd free(hex); 1220219089Spjd 1221168404Spjd break; 1222168404Spjd 1223219089Spjdbadlabel: 1224219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1225219089Spjd "invalid mlslabel '%s'"), strval); 1226219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1227219089Spjd m_label_free(new_sl); /* OK if null */ 1228277300Ssmh#else /* !illumos */ 1229219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1230219089Spjd "mlslabel is not supported on FreeBSD")); 1231219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1232277300Ssmh#endif /* illumos */ 1233219089Spjd goto error; 1234219089Spjd 1235219089Spjd } 1236219089Spjd 1237168404Spjd case ZFS_PROP_MOUNTPOINT: 1238185029Spjd { 1239185029Spjd namecheck_err_t why; 1240185029Spjd 1241168404Spjd if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || 1242168404Spjd strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) 1243168404Spjd break; 1244168404Spjd 1245185029Spjd if (mountpoint_namecheck(strval, &why)) { 1246185029Spjd switch (why) { 1247185029Spjd case NAME_ERR_LEADING_SLASH: 1248185029Spjd zfs_error_aux(hdl, 1249185029Spjd dgettext(TEXT_DOMAIN, 1250185029Spjd "'%s' must be an absolute path, " 1251185029Spjd "'none', or 'legacy'"), propname); 1252185029Spjd break; 1253185029Spjd case NAME_ERR_TOOLONG: 1254185029Spjd zfs_error_aux(hdl, 1255185029Spjd dgettext(TEXT_DOMAIN, 1256185029Spjd "component of '%s' is too long"), 1257185029Spjd propname); 1258185029Spjd break; 1259307050Smav 1260307050Smav default: 1261307050Smav zfs_error_aux(hdl, 1262307050Smav dgettext(TEXT_DOMAIN, 1263307050Smav "(%d) not defined"), 1264307050Smav why); 1265307050Smav break; 1266185029Spjd } 1267168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1268168404Spjd goto error; 1269168404Spjd } 1270185029Spjd } 1271185029Spjd 1272168404Spjd /*FALLTHRU*/ 1273168404Spjd 1274185029Spjd case ZFS_PROP_SHARESMB: 1275168404Spjd case ZFS_PROP_SHARENFS: 1276168404Spjd /* 1277185029Spjd * For the mountpoint and sharenfs or sharesmb 1278185029Spjd * properties, check if it can be set in a 1279185029Spjd * global/non-global zone based on 1280168404Spjd * the zoned property value: 1281168404Spjd * 1282168404Spjd * global zone non-global zone 1283168404Spjd * -------------------------------------------------- 1284168404Spjd * zoned=on mountpoint (no) mountpoint (yes) 1285168404Spjd * sharenfs (no) sharenfs (no) 1286185029Spjd * sharesmb (no) sharesmb (no) 1287168404Spjd * 1288168404Spjd * zoned=off mountpoint (yes) N/A 1289168404Spjd * sharenfs (yes) 1290185029Spjd * sharesmb (yes) 1291168404Spjd */ 1292168404Spjd if (zoned) { 1293168404Spjd if (getzoneid() == GLOBAL_ZONEID) { 1294168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1295168404Spjd "'%s' cannot be set on " 1296168404Spjd "dataset in a non-global zone"), 1297168404Spjd propname); 1298168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1299168404Spjd errbuf); 1300168404Spjd goto error; 1301185029Spjd } else if (prop == ZFS_PROP_SHARENFS || 1302185029Spjd prop == ZFS_PROP_SHARESMB) { 1303168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1304168404Spjd "'%s' cannot be set in " 1305168404Spjd "a non-global zone"), propname); 1306168404Spjd (void) zfs_error(hdl, EZFS_ZONED, 1307168404Spjd errbuf); 1308168404Spjd goto error; 1309168404Spjd } 1310168404Spjd } else if (getzoneid() != GLOBAL_ZONEID) { 1311168404Spjd /* 1312168404Spjd * If zoned property is 'off', this must be in 1313209962Smm * a global zone. If not, something is wrong. 1314168404Spjd */ 1315168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1316168404Spjd "'%s' cannot be set while dataset " 1317168404Spjd "'zoned' property is set"), propname); 1318168404Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 1319168404Spjd goto error; 1320168404Spjd } 1321168404Spjd 1322168404Spjd /* 1323185029Spjd * At this point, it is legitimate to set the 1324185029Spjd * property. Now we want to make sure that the 1325185029Spjd * property value is valid if it is sharenfs. 1326168404Spjd */ 1327185029Spjd if ((prop == ZFS_PROP_SHARENFS || 1328185029Spjd prop == ZFS_PROP_SHARESMB) && 1329185029Spjd strcmp(strval, "on") != 0 && 1330185029Spjd strcmp(strval, "off") != 0) { 1331185029Spjd zfs_share_proto_t proto; 1332168404Spjd 1333185029Spjd if (prop == ZFS_PROP_SHARESMB) 1334185029Spjd proto = PROTO_SMB; 1335185029Spjd else 1336185029Spjd proto = PROTO_NFS; 1337185029Spjd 1338185029Spjd /* 1339185029Spjd * Must be an valid sharing protocol 1340185029Spjd * option string so init the libshare 1341185029Spjd * in order to enable the parser and 1342185029Spjd * then parse the options. We use the 1343185029Spjd * control API since we don't care about 1344185029Spjd * the current configuration and don't 1345185029Spjd * want the overhead of loading it 1346185029Spjd * until we actually do something. 1347185029Spjd */ 1348185029Spjd 1349185029Spjd if (zfs_init_libshare(hdl, 1350185029Spjd SA_INIT_CONTROL_API) != SA_OK) { 1351185029Spjd /* 1352185029Spjd * An error occurred so we can't do 1353185029Spjd * anything 1354185029Spjd */ 1355185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1356185029Spjd "'%s' cannot be set: problem " 1357185029Spjd "in share initialization"), 1358185029Spjd propname); 1359185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1360185029Spjd errbuf); 1361185029Spjd goto error; 1362185029Spjd } 1363185029Spjd 1364185029Spjd if (zfs_parse_options(strval, proto) != SA_OK) { 1365185029Spjd /* 1366185029Spjd * There was an error in parsing so 1367185029Spjd * deal with it by issuing an error 1368185029Spjd * message and leaving after 1369185029Spjd * uninitializing the the libshare 1370185029Spjd * interface. 1371185029Spjd */ 1372185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1373185029Spjd "'%s' cannot be set to invalid " 1374185029Spjd "options"), propname); 1375185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1376185029Spjd errbuf); 1377185029Spjd zfs_uninit_libshare(hdl); 1378185029Spjd goto error; 1379185029Spjd } 1380185029Spjd zfs_uninit_libshare(hdl); 1381168404Spjd } 1382185029Spjd 1383168404Spjd break; 1384307050Smav 1385185029Spjd case ZFS_PROP_UTF8ONLY: 1386185029Spjd chosen_utf = (int)intval; 1387185029Spjd break; 1388307050Smav 1389185029Spjd case ZFS_PROP_NORMALIZE: 1390185029Spjd chosen_normal = (int)intval; 1391185029Spjd break; 1392307050Smav 1393307050Smav default: 1394307050Smav break; 1395168404Spjd } 1396168404Spjd 1397168404Spjd /* 1398168404Spjd * For changes to existing volumes, we have some additional 1399168404Spjd * checks to enforce. 1400168404Spjd */ 1401168404Spjd if (type == ZFS_TYPE_VOLUME && zhp != NULL) { 1402168404Spjd uint64_t volsize = zfs_prop_get_int(zhp, 1403168404Spjd ZFS_PROP_VOLSIZE); 1404168404Spjd uint64_t blocksize = zfs_prop_get_int(zhp, 1405168404Spjd ZFS_PROP_VOLBLOCKSIZE); 1406168404Spjd char buf[64]; 1407168404Spjd 1408168404Spjd switch (prop) { 1409168404Spjd case ZFS_PROP_RESERVATION: 1410168404Spjd if (intval > volsize) { 1411168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1412168404Spjd "'%s' is greater than current " 1413168404Spjd "volume size"), propname); 1414168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1415168404Spjd errbuf); 1416168404Spjd goto error; 1417168404Spjd } 1418168404Spjd break; 1419168404Spjd 1420339103Smav case ZFS_PROP_REFRESERVATION: 1421339103Smav if (intval > volsize && intval != UINT64_MAX) { 1422339103Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1423339103Smav "'%s' is greater than current " 1424339103Smav "volume size"), propname); 1425339103Smav (void) zfs_error(hdl, EZFS_BADPROP, 1426339103Smav errbuf); 1427339103Smav goto error; 1428339103Smav } 1429339103Smav break; 1430339103Smav 1431168404Spjd case ZFS_PROP_VOLSIZE: 1432168404Spjd if (intval % blocksize != 0) { 1433168404Spjd zfs_nicenum(blocksize, buf, 1434168404Spjd sizeof (buf)); 1435168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1436168404Spjd "'%s' must be a multiple of " 1437168404Spjd "volume block size (%s)"), 1438168404Spjd propname, buf); 1439168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1440168404Spjd errbuf); 1441168404Spjd goto error; 1442168404Spjd } 1443168404Spjd 1444168404Spjd if (intval == 0) { 1445168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1446168404Spjd "'%s' cannot be zero"), 1447168404Spjd propname); 1448168404Spjd (void) zfs_error(hdl, EZFS_BADPROP, 1449168404Spjd errbuf); 1450168404Spjd goto error; 1451168404Spjd } 1452168404Spjd break; 1453307050Smav 1454307050Smav default: 1455307050Smav break; 1456168404Spjd } 1457168404Spjd } 1458168404Spjd } 1459168404Spjd 1460168404Spjd /* 1461185029Spjd * If normalization was chosen, but no UTF8 choice was made, 1462185029Spjd * enforce rejection of non-UTF8 names. 1463185029Spjd * 1464185029Spjd * If normalization was chosen, but rejecting non-UTF8 names 1465185029Spjd * was explicitly not chosen, it is an error. 1466185029Spjd */ 1467185029Spjd if (chosen_normal > 0 && chosen_utf < 0) { 1468185029Spjd if (nvlist_add_uint64(ret, 1469185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { 1470185029Spjd (void) no_memory(hdl); 1471185029Spjd goto error; 1472185029Spjd } 1473185029Spjd } else if (chosen_normal > 0 && chosen_utf == 0) { 1474185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1475185029Spjd "'%s' must be set 'on' if normalization chosen"), 1476185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 1477185029Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1478185029Spjd goto error; 1479185029Spjd } 1480219089Spjd return (ret); 1481185029Spjd 1482219089Spjderror: 1483219089Spjd nvlist_free(ret); 1484219089Spjd return (NULL); 1485219089Spjd} 1486219089Spjd 1487219089Spjdint 1488219089Spjdzfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1489219089Spjd{ 1490219089Spjd uint64_t old_volsize; 1491219089Spjd uint64_t new_volsize; 1492219089Spjd uint64_t old_reservation; 1493219089Spjd uint64_t new_reservation; 1494219089Spjd zfs_prop_t resv_prop; 1495289499Smav nvlist_t *props; 1496219089Spjd 1497185029Spjd /* 1498168404Spjd * If this is an existing volume, and someone is setting the volsize, 1499168404Spjd * make sure that it matches the reservation, or add it if necessary. 1500168404Spjd */ 1501219089Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1502219089Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 1503219089Spjd return (-1); 1504219089Spjd old_reservation = zfs_prop_get_int(zhp, resv_prop); 1505289499Smav 1506289499Smav props = fnvlist_alloc(); 1507289499Smav fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1508289499Smav zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); 1509289499Smav 1510289499Smav if ((zvol_volsize_to_reservation(old_volsize, props) != 1511289499Smav old_reservation) || nvlist_exists(nvl, 1512289499Smav zfs_prop_to_name(resv_prop))) { 1513289499Smav fnvlist_free(props); 1514219089Spjd return (0); 1515219089Spjd } 1516219089Spjd if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1517289499Smav &new_volsize) != 0) { 1518289499Smav fnvlist_free(props); 1519219089Spjd return (-1); 1520289499Smav } 1521289499Smav new_reservation = zvol_volsize_to_reservation(new_volsize, props); 1522289499Smav fnvlist_free(props); 1523289499Smav 1524219089Spjd if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), 1525219089Spjd new_reservation) != 0) { 1526219089Spjd (void) no_memory(zhp->zfs_hdl); 1527219089Spjd return (-1); 1528219089Spjd } 1529219089Spjd return (1); 1530219089Spjd} 1531168404Spjd 1532339103Smav/* 1533339103Smav * Helper for 'zfs {set|clone} refreservation=auto'. Must be called after 1534339103Smav * zfs_valid_proplist(), as it is what sets the UINT64_MAX sentinal value. 1535339103Smav * Return codes must match zfs_add_synthetic_resv(). 1536339103Smav */ 1537339103Smavstatic int 1538339103Smavzfs_fix_auto_resv(zfs_handle_t *zhp, nvlist_t *nvl) 1539339103Smav{ 1540339103Smav uint64_t volsize; 1541339103Smav uint64_t resvsize; 1542339103Smav zfs_prop_t prop; 1543339103Smav nvlist_t *props; 1544339103Smav 1545339103Smav if (!ZFS_IS_VOLUME(zhp)) { 1546339103Smav return (0); 1547339103Smav } 1548339103Smav 1549339103Smav if (zfs_which_resv_prop(zhp, &prop) != 0) { 1550339103Smav return (-1); 1551339103Smav } 1552339103Smav 1553339103Smav if (prop != ZFS_PROP_REFRESERVATION) { 1554339103Smav return (0); 1555339103Smav } 1556339103Smav 1557339103Smav if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(prop), &resvsize) != 0) { 1558339103Smav /* No value being set, so it can't be "auto" */ 1559339103Smav return (0); 1560339103Smav } 1561339103Smav if (resvsize != UINT64_MAX) { 1562339103Smav /* Being set to a value other than "auto" */ 1563339103Smav return (0); 1564339103Smav } 1565339103Smav 1566339103Smav props = fnvlist_alloc(); 1567339103Smav 1568339103Smav fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1569339103Smav zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); 1570339103Smav 1571339103Smav if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1572339103Smav &volsize) != 0) { 1573339103Smav volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 1574339103Smav } 1575339103Smav 1576339103Smav resvsize = zvol_volsize_to_reservation(volsize, props); 1577339103Smav fnvlist_free(props); 1578339103Smav 1579339103Smav (void) nvlist_remove_all(nvl, zfs_prop_to_name(prop)); 1580339103Smav if (nvlist_add_uint64(nvl, zfs_prop_to_name(prop), resvsize) != 0) { 1581339103Smav (void) no_memory(zhp->zfs_hdl); 1582339103Smav return (-1); 1583339103Smav } 1584339103Smav return (1); 1585339103Smav} 1586339103Smav 1587219089Spjdvoid 1588219089Spjdzfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, 1589219089Spjd char *errbuf) 1590219089Spjd{ 1591219089Spjd switch (err) { 1592185029Spjd 1593219089Spjd case ENOSPC: 1594219089Spjd /* 1595219089Spjd * For quotas and reservations, ENOSPC indicates 1596219089Spjd * something different; setting a quota or reservation 1597219089Spjd * doesn't use any disk space. 1598219089Spjd */ 1599219089Spjd switch (prop) { 1600219089Spjd case ZFS_PROP_QUOTA: 1601219089Spjd case ZFS_PROP_REFQUOTA: 1602219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1603219089Spjd "size is less than current used or " 1604219089Spjd "reserved space")); 1605219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1606219089Spjd break; 1607219089Spjd 1608219089Spjd case ZFS_PROP_RESERVATION: 1609219089Spjd case ZFS_PROP_REFRESERVATION: 1610219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1611219089Spjd "size is greater than available space")); 1612219089Spjd (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); 1613219089Spjd break; 1614219089Spjd 1615219089Spjd default: 1616219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1617219089Spjd break; 1618168404Spjd } 1619219089Spjd break; 1620219089Spjd 1621219089Spjd case EBUSY: 1622219089Spjd (void) zfs_standard_error(hdl, EBUSY, errbuf); 1623219089Spjd break; 1624219089Spjd 1625219089Spjd case EROFS: 1626219089Spjd (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); 1627219089Spjd break; 1628219089Spjd 1629271764Swill case E2BIG: 1630271764Swill zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1631271764Swill "property value too long")); 1632271764Swill (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1633271764Swill break; 1634271764Swill 1635219089Spjd case ENOTSUP: 1636219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1637219089Spjd "pool and or dataset must be upgraded to set this " 1638219089Spjd "property or value")); 1639219089Spjd (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1640219089Spjd break; 1641219089Spjd 1642219089Spjd case ERANGE: 1643274337Sdelphij case EDOM: 1644274337Sdelphij if (prop == ZFS_PROP_COMPRESSION || 1645274337Sdelphij prop == ZFS_PROP_RECORDSIZE) { 1646219089Spjd (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1647219089Spjd "property setting is not allowed on " 1648219089Spjd "bootable datasets")); 1649219089Spjd (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1650289422Smav } else if (prop == ZFS_PROP_CHECKSUM || 1651289422Smav prop == ZFS_PROP_DEDUP) { 1652289422Smav (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1653289422Smav "property setting is not allowed on " 1654289422Smav "root pools")); 1655289422Smav (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); 1656219089Spjd } else { 1657219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1658219089Spjd } 1659219089Spjd break; 1660219089Spjd 1661219089Spjd case EINVAL: 1662219089Spjd if (prop == ZPROP_INVAL) { 1663219089Spjd (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1664219089Spjd } else { 1665219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1666219089Spjd } 1667219089Spjd break; 1668219089Spjd 1669219089Spjd case EOVERFLOW: 1670219089Spjd /* 1671219089Spjd * This platform can't address a volume this big. 1672219089Spjd */ 1673219089Spjd#ifdef _ILP32 1674219089Spjd if (prop == ZFS_PROP_VOLSIZE) { 1675219089Spjd (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); 1676219089Spjd break; 1677219089Spjd } 1678219089Spjd#endif 1679219089Spjd /* FALLTHROUGH */ 1680219089Spjd default: 1681219089Spjd (void) zfs_standard_error(hdl, err, errbuf); 1682168404Spjd } 1683168404Spjd} 1684168404Spjd 1685168404Spjd/* 1686168404Spjd * Given a property name and value, set the property for the given dataset. 1687168404Spjd */ 1688168404Spjdint 1689168404Spjdzfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) 1690168404Spjd{ 1691168404Spjd int ret = -1; 1692168404Spjd char errbuf[1024]; 1693168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1694289497Smav nvlist_t *nvl = NULL; 1695168404Spjd 1696168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 1697168404Spjd dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1698168404Spjd zhp->zfs_name); 1699168404Spjd 1700168404Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || 1701168404Spjd nvlist_add_string(nvl, propname, propval) != 0) { 1702168404Spjd (void) no_memory(hdl); 1703168404Spjd goto error; 1704168404Spjd } 1705168404Spjd 1706289497Smav ret = zfs_prop_set_list(zhp, nvl); 1707185029Spjd 1708289497Smaverror: 1709168404Spjd nvlist_free(nvl); 1710289497Smav return (ret); 1711289497Smav} 1712168404Spjd 1713168404Spjd 1714168404Spjd 1715289497Smav/* 1716289497Smav * Given an nvlist of property names and values, set the properties for the 1717289497Smav * given dataset. 1718289497Smav */ 1719289497Smavint 1720289497Smavzfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props) 1721289497Smav{ 1722289497Smav zfs_cmd_t zc = { 0 }; 1723289497Smav int ret = -1; 1724289497Smav prop_changelist_t **cls = NULL; 1725289497Smav int cl_idx; 1726289497Smav char errbuf[1024]; 1727289497Smav libzfs_handle_t *hdl = zhp->zfs_hdl; 1728289497Smav nvlist_t *nvl; 1729289497Smav int nvl_len; 1730307107Smav int added_resv = 0; 1731219089Spjd 1732289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1733289497Smav dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 1734289497Smav zhp->zfs_name); 1735168404Spjd 1736289497Smav if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props, 1737289500Smav zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, zhp->zpool_hdl, 1738289500Smav errbuf)) == NULL) 1739168404Spjd goto error; 1740168404Spjd 1741185029Spjd /* 1742289497Smav * We have to check for any extra properties which need to be added 1743289497Smav * before computing the length of the nvlist. 1744185029Spjd */ 1745289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1746289497Smav elem != NULL; 1747289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1748289497Smav if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE && 1749289497Smav (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) { 1750289497Smav goto error; 1751289497Smav } 1752238391Smm } 1753339103Smav 1754339103Smav if (added_resv != 1 && 1755339103Smav (added_resv = zfs_fix_auto_resv(zhp, nvl)) == -1) { 1756339103Smav goto error; 1757339103Smav } 1758339103Smav 1759289497Smav /* 1760289497Smav * Check how many properties we're setting and allocate an array to 1761289497Smav * store changelist pointers for postfix(). 1762289497Smav */ 1763289497Smav nvl_len = 0; 1764289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1765289497Smav elem != NULL; 1766289497Smav elem = nvlist_next_nvpair(nvl, elem)) 1767289497Smav nvl_len++; 1768289497Smav if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL) 1769168404Spjd goto error; 1770168404Spjd 1771289497Smav cl_idx = 0; 1772289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1773289497Smav elem != NULL; 1774289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1775289497Smav 1776289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1777289497Smav 1778289497Smav assert(cl_idx < nvl_len); 1779289497Smav /* 1780289497Smav * We don't want to unmount & remount the dataset when changing 1781310068Savg * its canmount property to 'on' or 'noauto'. We only use 1782310068Savg * the changelist logic to unmount when setting canmount=off. 1783289497Smav */ 1784297521Savg if (prop != ZFS_PROP_CANMOUNT || 1785297521Savg (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF && 1786321522Smav zfs_is_mounted(zhp, NULL))) { 1787289497Smav cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); 1788289497Smav if (cls[cl_idx] == NULL) 1789289497Smav goto error; 1790289497Smav } 1791289497Smav 1792289497Smav if (prop == ZFS_PROP_MOUNTPOINT && 1793289497Smav changelist_haszonedchild(cls[cl_idx])) { 1794289497Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1795289497Smav "child dataset with inherited mountpoint is used " 1796289497Smav "in a non-global zone")); 1797289497Smav ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1798289497Smav goto error; 1799289497Smav } 1800289497Smav 1801289497Smav /* We don't support those properties on FreeBSD. */ 1802289497Smav switch (prop) { 1803289497Smav case ZFS_PROP_DEVICES: 1804289497Smav case ZFS_PROP_ISCSIOPTIONS: 1805289497Smav case ZFS_PROP_XATTR: 1806289497Smav case ZFS_PROP_VSCAN: 1807289497Smav case ZFS_PROP_NBMAND: 1808289497Smav case ZFS_PROP_MLSLABEL: 1809289497Smav (void) snprintf(errbuf, sizeof (errbuf), 1810289497Smav "property '%s' not supported on FreeBSD", 1811289497Smav nvpair_name(elem)); 1812289497Smav ret = zfs_error(hdl, EZFS_PERM, errbuf); 1813289497Smav goto error; 1814289497Smav } 1815289497Smav 1816289497Smav if (cls[cl_idx] != NULL && 1817289497Smav (ret = changelist_prefix(cls[cl_idx])) != 0) 1818289497Smav goto error; 1819289497Smav 1820289497Smav cl_idx++; 1821289497Smav } 1822289497Smav assert(cl_idx == nvl_len); 1823289497Smav 1824168404Spjd /* 1825289497Smav * Execute the corresponding ioctl() to set this list of properties. 1826168404Spjd */ 1827168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1828168404Spjd 1829289497Smav if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || 1830289497Smav (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) 1831168404Spjd goto error; 1832168404Spjd 1833185029Spjd ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1834209962Smm 1835168404Spjd if (ret != 0) { 1836289497Smav /* Get the list of unset properties back and report them. */ 1837289497Smav nvlist_t *errorprops = NULL; 1838289497Smav if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) 1839289497Smav goto error; 1840289497Smav for (nvpair_t *elem = nvlist_next_nvpair(nvl, NULL); 1841289497Smav elem != NULL; 1842289497Smav elem = nvlist_next_nvpair(nvl, elem)) { 1843289497Smav zfs_prop_t prop = zfs_name_to_prop(nvpair_name(elem)); 1844289497Smav zfs_setprop_error(hdl, prop, errno, errbuf); 1845289497Smav } 1846289497Smav nvlist_free(errorprops); 1847289497Smav 1848219089Spjd if (added_resv && errno == ENOSPC) { 1849219089Spjd /* clean up the volsize property we tried to set */ 1850219089Spjd uint64_t old_volsize = zfs_prop_get_int(zhp, 1851219089Spjd ZFS_PROP_VOLSIZE); 1852219089Spjd nvlist_free(nvl); 1853289497Smav nvl = NULL; 1854219089Spjd zcmd_free_nvlists(&zc); 1855289497Smav 1856219089Spjd if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1857219089Spjd goto error; 1858219089Spjd if (nvlist_add_uint64(nvl, 1859219089Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), 1860219089Spjd old_volsize) != 0) 1861219089Spjd goto error; 1862219089Spjd if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) 1863219089Spjd goto error; 1864219089Spjd (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); 1865168404Spjd } 1866168404Spjd } else { 1867289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1868289497Smav if (cls[cl_idx] != NULL) { 1869289497Smav int clp_err = changelist_postfix(cls[cl_idx]); 1870289497Smav if (clp_err != 0) 1871289497Smav ret = clp_err; 1872289497Smav } 1873289497Smav } 1874185029Spjd 1875168404Spjd /* 1876168404Spjd * Refresh the statistics so the new property value 1877168404Spjd * is reflected. 1878168404Spjd */ 1879185029Spjd if (ret == 0) 1880168404Spjd (void) get_stats(zhp); 1881168404Spjd } 1882168404Spjd 1883168404Spjderror: 1884168404Spjd nvlist_free(nvl); 1885168404Spjd zcmd_free_nvlists(&zc); 1886289497Smav if (cls != NULL) { 1887289497Smav for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { 1888289497Smav if (cls[cl_idx] != NULL) 1889289497Smav changelist_free(cls[cl_idx]); 1890289497Smav } 1891289497Smav free(cls); 1892289497Smav } 1893168404Spjd return (ret); 1894168404Spjd} 1895168404Spjd 1896168404Spjd/* 1897219089Spjd * Given a property, inherit the value from the parent dataset, or if received 1898219089Spjd * is TRUE, revert to the received value, if any. 1899168404Spjd */ 1900168404Spjdint 1901219089Spjdzfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) 1902168404Spjd{ 1903168404Spjd zfs_cmd_t zc = { 0 }; 1904168404Spjd int ret; 1905168404Spjd prop_changelist_t *cl; 1906168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 1907168404Spjd char errbuf[1024]; 1908168404Spjd zfs_prop_t prop; 1909168404Spjd 1910168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1911168404Spjd "cannot inherit %s for '%s'"), propname, zhp->zfs_name); 1912168404Spjd 1913219089Spjd zc.zc_cookie = received; 1914185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { 1915168404Spjd /* 1916168404Spjd * For user properties, the amount of work we have to do is very 1917168404Spjd * small, so just do it here. 1918168404Spjd */ 1919168404Spjd if (!zfs_prop_user(propname)) { 1920168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1921168404Spjd "invalid property")); 1922168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1923168404Spjd } 1924168404Spjd 1925168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1926168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1927168404Spjd 1928185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) 1929168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1930168404Spjd 1931168404Spjd return (0); 1932168404Spjd } 1933168404Spjd 1934168404Spjd /* 1935168404Spjd * Verify that this property is inheritable. 1936168404Spjd */ 1937168404Spjd if (zfs_prop_readonly(prop)) 1938168404Spjd return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); 1939168404Spjd 1940219089Spjd if (!zfs_prop_inheritable(prop) && !received) 1941168404Spjd return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); 1942168404Spjd 1943168404Spjd /* 1944168404Spjd * Check to see if the value applies to this type 1945168404Spjd */ 1946168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 1947168404Spjd return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); 1948168404Spjd 1949168404Spjd /* 1950219089Spjd * Normalize the name, to get rid of shorthand abbreviations. 1951168404Spjd */ 1952168404Spjd propname = zfs_prop_to_name(prop); 1953168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 1954168404Spjd (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); 1955168404Spjd 1956168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && 1957168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 1958168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1959168404Spjd "dataset is used in a non-global zone")); 1960168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 1961168404Spjd } 1962168404Spjd 1963168404Spjd /* 1964168404Spjd * Determine datasets which will be affected by this change, if any. 1965168404Spjd */ 1966185029Spjd if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) 1967168404Spjd return (-1); 1968168404Spjd 1969168404Spjd if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { 1970168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1971168404Spjd "child dataset with inherited mountpoint is used " 1972168404Spjd "in a non-global zone")); 1973168404Spjd ret = zfs_error(hdl, EZFS_ZONED, errbuf); 1974168404Spjd goto error; 1975168404Spjd } 1976168404Spjd 1977168404Spjd if ((ret = changelist_prefix(cl)) != 0) 1978168404Spjd goto error; 1979168404Spjd 1980185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { 1981168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 1982168404Spjd } else { 1983168404Spjd 1984168404Spjd if ((ret = changelist_postfix(cl)) != 0) 1985168404Spjd goto error; 1986168404Spjd 1987168404Spjd /* 1988168404Spjd * Refresh the statistics so the new property is reflected. 1989168404Spjd */ 1990168404Spjd (void) get_stats(zhp); 1991168404Spjd } 1992168404Spjd 1993168404Spjderror: 1994168404Spjd changelist_free(cl); 1995168404Spjd return (ret); 1996168404Spjd} 1997168404Spjd 1998168404Spjd/* 1999168404Spjd * True DSL properties are stored in an nvlist. The following two functions 2000168404Spjd * extract them appropriately. 2001168404Spjd */ 2002168404Spjdstatic uint64_t 2003168404Spjdgetprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 2004168404Spjd{ 2005168404Spjd nvlist_t *nv; 2006168404Spjd uint64_t value; 2007168404Spjd 2008168404Spjd *source = NULL; 2009168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 2010168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 2011185029Spjd verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 2012185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 2013168404Spjd } else { 2014205198Sdelphij verify(!zhp->zfs_props_table || 2015205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 2016168404Spjd value = zfs_prop_default_numeric(prop); 2017168404Spjd *source = ""; 2018168404Spjd } 2019168404Spjd 2020168404Spjd return (value); 2021168404Spjd} 2022168404Spjd 2023289362Smavstatic const char * 2024168404Spjdgetprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) 2025168404Spjd{ 2026168404Spjd nvlist_t *nv; 2027289362Smav const char *value; 2028168404Spjd 2029168404Spjd *source = NULL; 2030168404Spjd if (nvlist_lookup_nvlist(zhp->zfs_props, 2031168404Spjd zfs_prop_to_name(prop), &nv) == 0) { 2032289362Smav value = fnvlist_lookup_string(nv, ZPROP_VALUE); 2033185029Spjd (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); 2034168404Spjd } else { 2035205198Sdelphij verify(!zhp->zfs_props_table || 2036205198Sdelphij zhp->zfs_props_table[prop] == B_TRUE); 2037289362Smav value = zfs_prop_default_string(prop); 2038168404Spjd *source = ""; 2039168404Spjd } 2040168404Spjd 2041168404Spjd return (value); 2042168404Spjd} 2043168404Spjd 2044219089Spjdstatic boolean_t 2045219089Spjdzfs_is_recvd_props_mode(zfs_handle_t *zhp) 2046219089Spjd{ 2047219089Spjd return (zhp->zfs_props == zhp->zfs_recvd_props); 2048219089Spjd} 2049219089Spjd 2050219089Spjdstatic void 2051219089Spjdzfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 2052219089Spjd{ 2053219089Spjd *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; 2054219089Spjd zhp->zfs_props = zhp->zfs_recvd_props; 2055219089Spjd} 2056219089Spjd 2057219089Spjdstatic void 2058219089Spjdzfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) 2059219089Spjd{ 2060219089Spjd zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; 2061219089Spjd *cookie = 0; 2062219089Spjd} 2063219089Spjd 2064168404Spjd/* 2065168404Spjd * Internal function for getting a numeric property. Both zfs_prop_get() and 2066168404Spjd * zfs_prop_get_int() are built using this interface. 2067168404Spjd * 2068168404Spjd * Certain properties can be overridden using 'mount -o'. In this case, scan 2069168404Spjd * the contents of the /etc/mnttab entry, searching for the appropriate options. 2070168404Spjd * If they differ from the on-disk values, report the current values and mark 2071168404Spjd * the source "temporary". 2072168404Spjd */ 2073168404Spjdstatic int 2074185029Spjdget_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, 2075168404Spjd char **source, uint64_t *val) 2076168404Spjd{ 2077185029Spjd zfs_cmd_t zc = { 0 }; 2078185029Spjd nvlist_t *zplprops = NULL; 2079168404Spjd struct mnttab mnt; 2080168404Spjd char *mntopt_on = NULL; 2081168404Spjd char *mntopt_off = NULL; 2082219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2083168404Spjd 2084168404Spjd *source = NULL; 2085168404Spjd 2086168404Spjd switch (prop) { 2087168404Spjd case ZFS_PROP_ATIME: 2088168404Spjd mntopt_on = MNTOPT_ATIME; 2089168404Spjd mntopt_off = MNTOPT_NOATIME; 2090168404Spjd break; 2091168404Spjd 2092168404Spjd case ZFS_PROP_DEVICES: 2093168404Spjd mntopt_on = MNTOPT_DEVICES; 2094168404Spjd mntopt_off = MNTOPT_NODEVICES; 2095168404Spjd break; 2096168404Spjd 2097168404Spjd case ZFS_PROP_EXEC: 2098168404Spjd mntopt_on = MNTOPT_EXEC; 2099168404Spjd mntopt_off = MNTOPT_NOEXEC; 2100168404Spjd break; 2101168404Spjd 2102168404Spjd case ZFS_PROP_READONLY: 2103168404Spjd mntopt_on = MNTOPT_RO; 2104168404Spjd mntopt_off = MNTOPT_RW; 2105168404Spjd break; 2106168404Spjd 2107168404Spjd case ZFS_PROP_SETUID: 2108168404Spjd mntopt_on = MNTOPT_SETUID; 2109168404Spjd mntopt_off = MNTOPT_NOSETUID; 2110168404Spjd break; 2111168404Spjd 2112168404Spjd case ZFS_PROP_XATTR: 2113168404Spjd mntopt_on = MNTOPT_XATTR; 2114168404Spjd mntopt_off = MNTOPT_NOXATTR; 2115168404Spjd break; 2116185029Spjd 2117185029Spjd case ZFS_PROP_NBMAND: 2118185029Spjd mntopt_on = MNTOPT_NBMAND; 2119185029Spjd mntopt_off = MNTOPT_NONBMAND; 2120185029Spjd break; 2121307050Smav 2122307050Smav default: 2123307050Smav break; 2124168404Spjd } 2125168404Spjd 2126168404Spjd /* 2127168404Spjd * Because looking up the mount options is potentially expensive 2128168404Spjd * (iterating over all of /etc/mnttab), we defer its calculation until 2129168404Spjd * we're looking up a property which requires its presence. 2130168404Spjd */ 2131168404Spjd if (!zhp->zfs_mntcheck && 2132168404Spjd (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { 2133209962Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 2134209962Smm struct mnttab entry; 2135168404Spjd 2136209962Smm if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { 2137209962Smm zhp->zfs_mntopts = zfs_strdup(hdl, 2138168404Spjd entry.mnt_mntopts); 2139168404Spjd if (zhp->zfs_mntopts == NULL) 2140168404Spjd return (-1); 2141168404Spjd } 2142168404Spjd 2143168404Spjd zhp->zfs_mntcheck = B_TRUE; 2144168404Spjd } 2145168404Spjd 2146168404Spjd if (zhp->zfs_mntopts == NULL) 2147168404Spjd mnt.mnt_mntopts = ""; 2148168404Spjd else 2149168404Spjd mnt.mnt_mntopts = zhp->zfs_mntopts; 2150168404Spjd 2151168404Spjd switch (prop) { 2152168404Spjd case ZFS_PROP_ATIME: 2153168404Spjd case ZFS_PROP_DEVICES: 2154168404Spjd case ZFS_PROP_EXEC: 2155168404Spjd case ZFS_PROP_READONLY: 2156168404Spjd case ZFS_PROP_SETUID: 2157168404Spjd case ZFS_PROP_XATTR: 2158185029Spjd case ZFS_PROP_NBMAND: 2159168404Spjd *val = getprop_uint64(zhp, prop, source); 2160168404Spjd 2161219089Spjd if (received) 2162219089Spjd break; 2163219089Spjd 2164168404Spjd if (hasmntopt(&mnt, mntopt_on) && !*val) { 2165168404Spjd *val = B_TRUE; 2166168404Spjd if (src) 2167185029Spjd *src = ZPROP_SRC_TEMPORARY; 2168168404Spjd } else if (hasmntopt(&mnt, mntopt_off) && *val) { 2169168404Spjd *val = B_FALSE; 2170168404Spjd if (src) 2171185029Spjd *src = ZPROP_SRC_TEMPORARY; 2172168404Spjd } 2173168404Spjd break; 2174168404Spjd 2175168404Spjd case ZFS_PROP_CANMOUNT: 2176219089Spjd case ZFS_PROP_VOLSIZE: 2177168404Spjd case ZFS_PROP_QUOTA: 2178185029Spjd case ZFS_PROP_REFQUOTA: 2179168404Spjd case ZFS_PROP_RESERVATION: 2180185029Spjd case ZFS_PROP_REFRESERVATION: 2181264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2182264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2183264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2184264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2185168404Spjd *val = getprop_uint64(zhp, prop, source); 2186219089Spjd 2187219089Spjd if (*source == NULL) { 2188219089Spjd /* not default, must be local */ 2189168404Spjd *source = zhp->zfs_name; 2190219089Spjd } 2191168404Spjd break; 2192168404Spjd 2193168404Spjd case ZFS_PROP_MOUNTED: 2194168404Spjd *val = (zhp->zfs_mntopts != NULL); 2195168404Spjd break; 2196168404Spjd 2197168404Spjd case ZFS_PROP_NUMCLONES: 2198168404Spjd *val = zhp->zfs_dmustats.dds_num_clones; 2199168404Spjd break; 2200168404Spjd 2201185029Spjd case ZFS_PROP_VERSION: 2202185029Spjd case ZFS_PROP_NORMALIZE: 2203185029Spjd case ZFS_PROP_UTF8ONLY: 2204185029Spjd case ZFS_PROP_CASE: 2205185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || 2206185029Spjd zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) 2207185029Spjd return (-1); 2208185029Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 2209185029Spjd if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { 2210185029Spjd zcmd_free_nvlists(&zc); 2211219089Spjd return (-1); 2212185029Spjd } 2213185029Spjd if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || 2214185029Spjd nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), 2215185029Spjd val) != 0) { 2216185029Spjd zcmd_free_nvlists(&zc); 2217219089Spjd return (-1); 2218185029Spjd } 2219296528Smav nvlist_free(zplprops); 2220185029Spjd zcmd_free_nvlists(&zc); 2221185029Spjd break; 2222185029Spjd 2223253819Sdelphij case ZFS_PROP_INCONSISTENT: 2224253819Sdelphij *val = zhp->zfs_dmustats.dds_inconsistent; 2225253819Sdelphij break; 2226253819Sdelphij 2227168404Spjd default: 2228185029Spjd switch (zfs_prop_get_type(prop)) { 2229185029Spjd case PROP_TYPE_NUMBER: 2230185029Spjd case PROP_TYPE_INDEX: 2231185029Spjd *val = getprop_uint64(zhp, prop, source); 2232185029Spjd /* 2233209962Smm * If we tried to use a default value for a 2234185029Spjd * readonly property, it means that it was not 2235331391Smav * present. Note this only applies to "truly" 2236331391Smav * readonly properties, not set-once properties 2237331391Smav * like volblocksize. 2238185029Spjd */ 2239185029Spjd if (zfs_prop_readonly(prop) && 2240331391Smav !zfs_prop_setonce(prop) && 2241219089Spjd *source != NULL && (*source)[0] == '\0') { 2242219089Spjd *source = NULL; 2243325139Savg return (-1); 2244185029Spjd } 2245185029Spjd break; 2246185029Spjd 2247185029Spjd case PROP_TYPE_STRING: 2248185029Spjd default: 2249185029Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 2250185029Spjd "cannot get non-numeric property")); 2251185029Spjd return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, 2252185029Spjd dgettext(TEXT_DOMAIN, "internal error"))); 2253185029Spjd } 2254168404Spjd } 2255168404Spjd 2256168404Spjd return (0); 2257168404Spjd} 2258168404Spjd 2259168404Spjd/* 2260168404Spjd * Calculate the source type, given the raw source string. 2261168404Spjd */ 2262168404Spjdstatic void 2263185029Spjdget_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, 2264168404Spjd char *statbuf, size_t statlen) 2265168404Spjd{ 2266185029Spjd if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) 2267168404Spjd return; 2268168404Spjd 2269168404Spjd if (source == NULL) { 2270185029Spjd *srctype = ZPROP_SRC_NONE; 2271168404Spjd } else if (source[0] == '\0') { 2272185029Spjd *srctype = ZPROP_SRC_DEFAULT; 2273219089Spjd } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { 2274219089Spjd *srctype = ZPROP_SRC_RECEIVED; 2275168404Spjd } else { 2276168404Spjd if (strcmp(source, zhp->zfs_name) == 0) { 2277185029Spjd *srctype = ZPROP_SRC_LOCAL; 2278168404Spjd } else { 2279168404Spjd (void) strlcpy(statbuf, source, statlen); 2280185029Spjd *srctype = ZPROP_SRC_INHERITED; 2281168404Spjd } 2282168404Spjd } 2283168404Spjd 2284168404Spjd} 2285168404Spjd 2286219089Spjdint 2287219089Spjdzfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, 2288219089Spjd size_t proplen, boolean_t literal) 2289219089Spjd{ 2290219089Spjd zfs_prop_t prop; 2291219089Spjd int err = 0; 2292219089Spjd 2293219089Spjd if (zhp->zfs_recvd_props == NULL) 2294219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 2295219089Spjd return (-1); 2296219089Spjd 2297219089Spjd prop = zfs_name_to_prop(propname); 2298219089Spjd 2299219089Spjd if (prop != ZPROP_INVAL) { 2300219089Spjd uint64_t cookie; 2301219089Spjd if (!nvlist_exists(zhp->zfs_recvd_props, propname)) 2302219089Spjd return (-1); 2303219089Spjd zfs_set_recvd_props_mode(zhp, &cookie); 2304219089Spjd err = zfs_prop_get(zhp, prop, propbuf, proplen, 2305219089Spjd NULL, NULL, 0, literal); 2306219089Spjd zfs_unset_recvd_props_mode(zhp, &cookie); 2307219089Spjd } else { 2308219089Spjd nvlist_t *propval; 2309219089Spjd char *recvdval; 2310219089Spjd if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, 2311219089Spjd propname, &propval) != 0) 2312219089Spjd return (-1); 2313219089Spjd verify(nvlist_lookup_string(propval, ZPROP_VALUE, 2314219089Spjd &recvdval) == 0); 2315219089Spjd (void) strlcpy(propbuf, recvdval, proplen); 2316219089Spjd } 2317219089Spjd 2318219089Spjd return (err == 0 ? 0 : -1); 2319219089Spjd} 2320219089Spjd 2321228103Smmstatic int 2322228103Smmget_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) 2323228103Smm{ 2324228103Smm nvlist_t *value; 2325228103Smm nvpair_t *pair; 2326228103Smm 2327228103Smm value = zfs_get_clones_nvl(zhp); 2328228103Smm if (value == NULL) 2329228103Smm return (-1); 2330228103Smm 2331228103Smm propbuf[0] = '\0'; 2332228103Smm for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; 2333228103Smm pair = nvlist_next_nvpair(value, pair)) { 2334228103Smm if (propbuf[0] != '\0') 2335228103Smm (void) strlcat(propbuf, ",", proplen); 2336228103Smm (void) strlcat(propbuf, nvpair_name(pair), proplen); 2337228103Smm } 2338228103Smm 2339228103Smm return (0); 2340228103Smm} 2341228103Smm 2342228103Smmstruct get_clones_arg { 2343228103Smm uint64_t numclones; 2344228103Smm nvlist_t *value; 2345228103Smm const char *origin; 2346307108Smav char buf[ZFS_MAX_DATASET_NAME_LEN]; 2347228103Smm}; 2348228103Smm 2349228103Smmint 2350228103Smmget_clones_cb(zfs_handle_t *zhp, void *arg) 2351228103Smm{ 2352228103Smm struct get_clones_arg *gca = arg; 2353228103Smm 2354228103Smm if (gca->numclones == 0) { 2355228103Smm zfs_close(zhp); 2356228103Smm return (0); 2357228103Smm } 2358228103Smm 2359228103Smm if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), 2360228103Smm NULL, NULL, 0, B_TRUE) != 0) 2361228103Smm goto out; 2362228103Smm if (strcmp(gca->buf, gca->origin) == 0) { 2363248571Smm fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); 2364228103Smm gca->numclones--; 2365228103Smm } 2366228103Smm 2367228103Smmout: 2368228103Smm (void) zfs_iter_children(zhp, get_clones_cb, gca); 2369228103Smm zfs_close(zhp); 2370228103Smm return (0); 2371228103Smm} 2372228103Smm 2373228103Smmnvlist_t * 2374228103Smmzfs_get_clones_nvl(zfs_handle_t *zhp) 2375228103Smm{ 2376228103Smm nvlist_t *nv, *value; 2377228103Smm 2378228103Smm if (nvlist_lookup_nvlist(zhp->zfs_props, 2379228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { 2380228103Smm struct get_clones_arg gca; 2381228103Smm 2382228103Smm /* 2383228103Smm * if this is a snapshot, then the kernel wasn't able 2384228103Smm * to get the clones. Do it by slowly iterating. 2385228103Smm */ 2386228103Smm if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) 2387228103Smm return (NULL); 2388228103Smm if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) 2389228103Smm return (NULL); 2390228103Smm if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { 2391228103Smm nvlist_free(nv); 2392228103Smm return (NULL); 2393228103Smm } 2394228103Smm 2395228103Smm gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); 2396228103Smm gca.value = value; 2397228103Smm gca.origin = zhp->zfs_name; 2398228103Smm 2399228103Smm if (gca.numclones != 0) { 2400228103Smm zfs_handle_t *root; 2401307108Smav char pool[ZFS_MAX_DATASET_NAME_LEN]; 2402228103Smm char *cp = pool; 2403228103Smm 2404228103Smm /* get the pool name */ 2405228103Smm (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); 2406228103Smm (void) strsep(&cp, "/@"); 2407228103Smm root = zfs_open(zhp->zfs_hdl, pool, 2408228103Smm ZFS_TYPE_FILESYSTEM); 2409228103Smm 2410228103Smm (void) get_clones_cb(root, &gca); 2411228103Smm } 2412228103Smm 2413228103Smm if (gca.numclones != 0 || 2414228103Smm nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || 2415228103Smm nvlist_add_nvlist(zhp->zfs_props, 2416228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { 2417228103Smm nvlist_free(nv); 2418228103Smm nvlist_free(value); 2419228103Smm return (NULL); 2420228103Smm } 2421228103Smm nvlist_free(nv); 2422228103Smm nvlist_free(value); 2423228103Smm verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, 2424228103Smm zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); 2425228103Smm } 2426228103Smm 2427228103Smm verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); 2428228103Smm 2429228103Smm return (value); 2430228103Smm} 2431228103Smm 2432168404Spjd/* 2433325534Savg * Accepts a property and value and checks that the value 2434325534Savg * matches the one found by the channel program. If they are 2435325534Savg * not equal, print both of them. 2436325534Savg */ 2437325534Savgvoid 2438325534Savgzcp_check(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t intval, 2439325534Savg const char *strval) 2440325534Savg{ 2441325534Savg if (!zhp->zfs_hdl->libzfs_prop_debug) 2442325534Savg return; 2443325534Savg int error; 2444325534Savg char *poolname = zhp->zpool_hdl->zpool_name; 2445325534Savg const char *program = 2446325534Savg "args = ...\n" 2447325534Savg "ds = args['dataset']\n" 2448325534Savg "prop = args['property']\n" 2449325534Savg "value, setpoint = zfs.get_prop(ds, prop)\n" 2450325534Savg "return {value=value, setpoint=setpoint}\n"; 2451325534Savg nvlist_t *outnvl; 2452325534Savg nvlist_t *retnvl; 2453325534Savg nvlist_t *argnvl = fnvlist_alloc(); 2454325534Savg 2455325534Savg fnvlist_add_string(argnvl, "dataset", zhp->zfs_name); 2456325534Savg fnvlist_add_string(argnvl, "property", zfs_prop_to_name(prop)); 2457325534Savg 2458329484Smav error = lzc_channel_program_nosync(poolname, program, 2459325534Savg 10 * 1000 * 1000, 10 * 1024 * 1024, argnvl, &outnvl); 2460325534Savg 2461325534Savg if (error == 0) { 2462325534Savg retnvl = fnvlist_lookup_nvlist(outnvl, "return"); 2463325534Savg if (zfs_prop_get_type(prop) == PROP_TYPE_NUMBER) { 2464325534Savg int64_t ans; 2465325534Savg error = nvlist_lookup_int64(retnvl, "value", &ans); 2466325534Savg if (error != 0) { 2467325534Savg (void) fprintf(stderr, "zcp check error: %u\n", 2468325534Savg error); 2469325534Savg return; 2470325534Savg } 2471325534Savg if (ans != intval) { 2472325534Savg (void) fprintf(stderr, 2473325534Savg "%s: zfs found %lld, but zcp found %lld\n", 2474325534Savg zfs_prop_to_name(prop), 2475325534Savg (longlong_t)intval, (longlong_t)ans); 2476325534Savg } 2477325534Savg } else { 2478325534Savg char *str_ans; 2479325534Savg error = nvlist_lookup_string(retnvl, "value", &str_ans); 2480325534Savg if (error != 0) { 2481325534Savg (void) fprintf(stderr, "zcp check error: %u\n", 2482325534Savg error); 2483325534Savg return; 2484325534Savg } 2485325534Savg if (strcmp(strval, str_ans) != 0) { 2486325534Savg (void) fprintf(stderr, 2487325534Savg "%s: zfs found %s, but zcp found %s\n", 2488325534Savg zfs_prop_to_name(prop), 2489325534Savg strval, str_ans); 2490325534Savg } 2491325534Savg } 2492325534Savg } else { 2493325534Savg (void) fprintf(stderr, 2494325534Savg "zcp check failed, channel program error: %u\n", error); 2495325534Savg } 2496325534Savg nvlist_free(argnvl); 2497325534Savg nvlist_free(outnvl); 2498325534Savg} 2499325534Savg 2500325534Savg/* 2501168404Spjd * Retrieve a property from the given object. If 'literal' is specified, then 2502168404Spjd * numbers are left as exact values. Otherwise, numbers are converted to a 2503168404Spjd * human-readable form. 2504168404Spjd * 2505168404Spjd * Returns 0 on success, or -1 on error. 2506168404Spjd */ 2507168404Spjdint 2508168404Spjdzfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, 2509185029Spjd zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) 2510168404Spjd{ 2511168404Spjd char *source = NULL; 2512168404Spjd uint64_t val; 2513289362Smav const char *str; 2514168404Spjd const char *strval; 2515219089Spjd boolean_t received = zfs_is_recvd_props_mode(zhp); 2516168404Spjd 2517168404Spjd /* 2518168404Spjd * Check to see if this property applies to our object 2519168404Spjd */ 2520168404Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) 2521168404Spjd return (-1); 2522168404Spjd 2523219089Spjd if (received && zfs_prop_readonly(prop)) 2524219089Spjd return (-1); 2525219089Spjd 2526168404Spjd if (src) 2527185029Spjd *src = ZPROP_SRC_NONE; 2528168404Spjd 2529168404Spjd switch (prop) { 2530168404Spjd case ZFS_PROP_CREATION: 2531168404Spjd /* 2532168404Spjd * 'creation' is a time_t stored in the statistics. We convert 2533168404Spjd * this into a string unless 'literal' is specified. 2534168404Spjd */ 2535168404Spjd { 2536168404Spjd val = getprop_uint64(zhp, prop, &source); 2537168404Spjd time_t time = (time_t)val; 2538168404Spjd struct tm t; 2539168404Spjd 2540168404Spjd if (literal || 2541168404Spjd localtime_r(&time, &t) == NULL || 2542168404Spjd strftime(propbuf, proplen, "%a %b %e %k:%M %Y", 2543168404Spjd &t) == 0) 2544168404Spjd (void) snprintf(propbuf, proplen, "%llu", val); 2545168404Spjd } 2546325534Savg zcp_check(zhp, prop, val, NULL); 2547168404Spjd break; 2548168404Spjd 2549168404Spjd case ZFS_PROP_MOUNTPOINT: 2550168404Spjd /* 2551168404Spjd * Getting the precise mountpoint can be tricky. 2552168404Spjd * 2553168404Spjd * - for 'none' or 'legacy', return those values. 2554168404Spjd * - for inherited mountpoints, we want to take everything 2555168404Spjd * after our ancestor and append it to the inherited value. 2556168404Spjd * 2557168404Spjd * If the pool has an alternate root, we want to prepend that 2558168404Spjd * root to any values we return. 2559168404Spjd */ 2560185029Spjd 2561168404Spjd str = getprop_string(zhp, prop, &source); 2562168404Spjd 2563185029Spjd if (str[0] == '/') { 2564185029Spjd char buf[MAXPATHLEN]; 2565185029Spjd char *root = buf; 2566219089Spjd const char *relpath; 2567168404Spjd 2568219089Spjd /* 2569219089Spjd * If we inherit the mountpoint, even from a dataset 2570219089Spjd * with a received value, the source will be the path of 2571219089Spjd * the dataset we inherit from. If source is 2572219089Spjd * ZPROP_SOURCE_VAL_RECVD, the received value is not 2573219089Spjd * inherited. 2574219089Spjd */ 2575219089Spjd if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { 2576219089Spjd relpath = ""; 2577219089Spjd } else { 2578219089Spjd relpath = zhp->zfs_name + strlen(source); 2579219089Spjd if (relpath[0] == '/') 2580219089Spjd relpath++; 2581219089Spjd } 2582185029Spjd 2583185029Spjd if ((zpool_get_prop(zhp->zpool_hdl, 2584263889Sdelphij ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, 2585263889Sdelphij B_FALSE)) || (strcmp(root, "-") == 0)) 2586185029Spjd root[0] = '\0'; 2587185029Spjd /* 2588185029Spjd * Special case an alternate root of '/'. This will 2589185029Spjd * avoid having multiple leading slashes in the 2590185029Spjd * mountpoint path. 2591185029Spjd */ 2592185029Spjd if (strcmp(root, "/") == 0) 2593185029Spjd root++; 2594185029Spjd 2595185029Spjd /* 2596185029Spjd * If the mountpoint is '/' then skip over this 2597185029Spjd * if we are obtaining either an alternate root or 2598185029Spjd * an inherited mountpoint. 2599185029Spjd */ 2600185029Spjd if (str[1] == '\0' && (root[0] != '\0' || 2601185029Spjd relpath[0] != '\0')) 2602168404Spjd str++; 2603168404Spjd 2604168404Spjd if (relpath[0] == '\0') 2605168404Spjd (void) snprintf(propbuf, proplen, "%s%s", 2606168404Spjd root, str); 2607168404Spjd else 2608168404Spjd (void) snprintf(propbuf, proplen, "%s%s%s%s", 2609168404Spjd root, str, relpath[0] == '@' ? "" : "/", 2610168404Spjd relpath); 2611168404Spjd } else { 2612168404Spjd /* 'legacy' or 'none' */ 2613168404Spjd (void) strlcpy(propbuf, str, proplen); 2614168404Spjd } 2615325534Savg zcp_check(zhp, prop, NULL, propbuf); 2616168404Spjd break; 2617168404Spjd 2618168404Spjd case ZFS_PROP_ORIGIN: 2619289362Smav str = getprop_string(zhp, prop, &source); 2620289362Smav if (str == NULL) 2621168404Spjd return (-1); 2622289362Smav (void) strlcpy(propbuf, str, proplen); 2623325534Savg zcp_check(zhp, prop, NULL, str); 2624168404Spjd break; 2625168404Spjd 2626228103Smm case ZFS_PROP_CLONES: 2627228103Smm if (get_clones_string(zhp, propbuf, proplen) != 0) 2628228103Smm return (-1); 2629228103Smm break; 2630228103Smm 2631168404Spjd case ZFS_PROP_QUOTA: 2632185029Spjd case ZFS_PROP_REFQUOTA: 2633168404Spjd case ZFS_PROP_RESERVATION: 2634185029Spjd case ZFS_PROP_REFRESERVATION: 2635185029Spjd 2636168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2637168404Spjd return (-1); 2638168404Spjd /* 2639168404Spjd * If quota or reservation is 0, we translate this into 'none' 2640168404Spjd * (unless literal is set), and indicate that it's the default 2641168404Spjd * value. Otherwise, we print the number nicely and indicate 2642168404Spjd * that its set locally. 2643168404Spjd */ 2644168404Spjd if (val == 0) { 2645168404Spjd if (literal) 2646168404Spjd (void) strlcpy(propbuf, "0", proplen); 2647168404Spjd else 2648168404Spjd (void) strlcpy(propbuf, "none", proplen); 2649168404Spjd } else { 2650168404Spjd if (literal) 2651168404Spjd (void) snprintf(propbuf, proplen, "%llu", 2652168404Spjd (u_longlong_t)val); 2653168404Spjd else 2654168404Spjd zfs_nicenum(val, propbuf, proplen); 2655168404Spjd } 2656325534Savg zcp_check(zhp, prop, val, NULL); 2657168404Spjd break; 2658168404Spjd 2659264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2660264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2661264835Sdelphij case ZFS_PROP_FILESYSTEM_COUNT: 2662264835Sdelphij case ZFS_PROP_SNAPSHOT_COUNT: 2663264835Sdelphij 2664264835Sdelphij if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2665264835Sdelphij return (-1); 2666264835Sdelphij 2667264835Sdelphij /* 2668264835Sdelphij * If limit is UINT64_MAX, we translate this into 'none' (unless 2669264835Sdelphij * literal is set), and indicate that it's the default value. 2670264835Sdelphij * Otherwise, we print the number nicely and indicate that it's 2671264835Sdelphij * set locally. 2672264835Sdelphij */ 2673264835Sdelphij if (literal) { 2674264835Sdelphij (void) snprintf(propbuf, proplen, "%llu", 2675264835Sdelphij (u_longlong_t)val); 2676264835Sdelphij } else if (val == UINT64_MAX) { 2677264835Sdelphij (void) strlcpy(propbuf, "none", proplen); 2678264835Sdelphij } else { 2679264835Sdelphij zfs_nicenum(val, propbuf, proplen); 2680264835Sdelphij } 2681325534Savg 2682325534Savg zcp_check(zhp, prop, val, NULL); 2683264835Sdelphij break; 2684264835Sdelphij 2685223623Smm case ZFS_PROP_REFRATIO: 2686168404Spjd case ZFS_PROP_COMPRESSRATIO: 2687168404Spjd if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2688168404Spjd return (-1); 2689219089Spjd (void) snprintf(propbuf, proplen, "%llu.%02llux", 2690219089Spjd (u_longlong_t)(val / 100), 2691219089Spjd (u_longlong_t)(val % 100)); 2692325534Savg zcp_check(zhp, prop, val, NULL); 2693168404Spjd break; 2694168404Spjd 2695168404Spjd case ZFS_PROP_TYPE: 2696168404Spjd switch (zhp->zfs_type) { 2697168404Spjd case ZFS_TYPE_FILESYSTEM: 2698168404Spjd str = "filesystem"; 2699168404Spjd break; 2700168404Spjd case ZFS_TYPE_VOLUME: 2701168404Spjd str = "volume"; 2702168404Spjd break; 2703168404Spjd case ZFS_TYPE_SNAPSHOT: 2704168404Spjd str = "snapshot"; 2705168404Spjd break; 2706260183Sdelphij case ZFS_TYPE_BOOKMARK: 2707260183Sdelphij str = "bookmark"; 2708260183Sdelphij break; 2709168404Spjd default: 2710168404Spjd abort(); 2711168404Spjd } 2712168404Spjd (void) snprintf(propbuf, proplen, "%s", str); 2713325534Savg zcp_check(zhp, prop, NULL, propbuf); 2714168404Spjd break; 2715168404Spjd 2716168404Spjd case ZFS_PROP_MOUNTED: 2717168404Spjd /* 2718168404Spjd * The 'mounted' property is a pseudo-property that described 2719168404Spjd * whether the filesystem is currently mounted. Even though 2720168404Spjd * it's a boolean value, the typical values of "on" and "off" 2721168404Spjd * don't make sense, so we translate to "yes" and "no". 2722168404Spjd */ 2723168404Spjd if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, 2724168404Spjd src, &source, &val) != 0) 2725168404Spjd return (-1); 2726168404Spjd if (val) 2727168404Spjd (void) strlcpy(propbuf, "yes", proplen); 2728168404Spjd else 2729168404Spjd (void) strlcpy(propbuf, "no", proplen); 2730168404Spjd break; 2731168404Spjd 2732168404Spjd case ZFS_PROP_NAME: 2733168404Spjd /* 2734168404Spjd * The 'name' property is a pseudo-property derived from the 2735168404Spjd * dataset name. It is presented as a real property to simplify 2736168404Spjd * consumers. 2737168404Spjd */ 2738168404Spjd (void) strlcpy(propbuf, zhp->zfs_name, proplen); 2739325534Savg zcp_check(zhp, prop, NULL, propbuf); 2740168404Spjd break; 2741168404Spjd 2742219089Spjd case ZFS_PROP_MLSLABEL: 2743219089Spjd { 2744277300Ssmh#ifdef illumos 2745219089Spjd m_label_t *new_sl = NULL; 2746219089Spjd char *ascii = NULL; /* human readable label */ 2747219089Spjd 2748219089Spjd (void) strlcpy(propbuf, 2749219089Spjd getprop_string(zhp, prop, &source), proplen); 2750219089Spjd 2751219089Spjd if (literal || (strcasecmp(propbuf, 2752219089Spjd ZFS_MLSLABEL_DEFAULT) == 0)) 2753219089Spjd break; 2754219089Spjd 2755219089Spjd /* 2756219089Spjd * Try to translate the internal hex string to 2757219089Spjd * human-readable output. If there are any 2758219089Spjd * problems just use the hex string. 2759219089Spjd */ 2760219089Spjd 2761219089Spjd if (str_to_label(propbuf, &new_sl, MAC_LABEL, 2762219089Spjd L_NO_CORRECTION, NULL) == -1) { 2763219089Spjd m_label_free(new_sl); 2764219089Spjd break; 2765219089Spjd } 2766219089Spjd 2767219089Spjd if (label_to_str(new_sl, &ascii, M_LABEL, 2768219089Spjd DEF_NAMES) != 0) { 2769219089Spjd if (ascii) 2770219089Spjd free(ascii); 2771219089Spjd m_label_free(new_sl); 2772219089Spjd break; 2773219089Spjd } 2774219089Spjd m_label_free(new_sl); 2775219089Spjd 2776219089Spjd (void) strlcpy(propbuf, ascii, proplen); 2777219089Spjd free(ascii); 2778277300Ssmh#else /* !illumos */ 2779219089Spjd propbuf[0] = '\0'; 2780277300Ssmh#endif /* illumos */ 2781219089Spjd } 2782219089Spjd break; 2783219089Spjd 2784236705Smm case ZFS_PROP_GUID: 2785339142Smav case ZFS_PROP_CREATETXG: 2786236705Smm /* 2787236705Smm * GUIDs are stored as numbers, but they are identifiers. 2788236705Smm * We don't want them to be pretty printed, because pretty 2789236705Smm * printing mangles the ID into a truncated and useless value. 2790236705Smm */ 2791236705Smm if (get_numeric_property(zhp, prop, src, &source, &val) != 0) 2792236705Smm return (-1); 2793236705Smm (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); 2794325534Savg zcp_check(zhp, prop, val, NULL); 2795236705Smm break; 2796236705Smm 2797168404Spjd default: 2798185029Spjd switch (zfs_prop_get_type(prop)) { 2799185029Spjd case PROP_TYPE_NUMBER: 2800185029Spjd if (get_numeric_property(zhp, prop, src, 2801325534Savg &source, &val) != 0) { 2802185029Spjd return (-1); 2803325534Savg } 2804325534Savg 2805325534Savg if (literal) { 2806185029Spjd (void) snprintf(propbuf, proplen, "%llu", 2807185029Spjd (u_longlong_t)val); 2808325534Savg } else { 2809185029Spjd zfs_nicenum(val, propbuf, proplen); 2810325534Savg } 2811325534Savg zcp_check(zhp, prop, val, NULL); 2812185029Spjd break; 2813185029Spjd 2814185029Spjd case PROP_TYPE_STRING: 2815289362Smav str = getprop_string(zhp, prop, &source); 2816289362Smav if (str == NULL) 2817289362Smav return (-1); 2818325534Savg 2819289362Smav (void) strlcpy(propbuf, str, proplen); 2820325534Savg zcp_check(zhp, prop, NULL, str); 2821185029Spjd break; 2822185029Spjd 2823185029Spjd case PROP_TYPE_INDEX: 2824185029Spjd if (get_numeric_property(zhp, prop, src, 2825185029Spjd &source, &val) != 0) 2826185029Spjd return (-1); 2827185029Spjd if (zfs_prop_index_to_string(prop, val, &strval) != 0) 2828185029Spjd return (-1); 2829325534Savg 2830185029Spjd (void) strlcpy(propbuf, strval, proplen); 2831325534Savg zcp_check(zhp, prop, NULL, strval); 2832185029Spjd break; 2833185029Spjd 2834185029Spjd default: 2835185029Spjd abort(); 2836185029Spjd } 2837168404Spjd } 2838168404Spjd 2839168404Spjd get_source(zhp, src, source, statbuf, statlen); 2840168404Spjd 2841168404Spjd return (0); 2842168404Spjd} 2843168404Spjd 2844168404Spjd/* 2845168404Spjd * Utility function to get the given numeric property. Does no validation that 2846168404Spjd * the given property is the appropriate type; should only be used with 2847168404Spjd * hard-coded property types. 2848168404Spjd */ 2849168404Spjduint64_t 2850168404Spjdzfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) 2851168404Spjd{ 2852168404Spjd char *source; 2853168404Spjd uint64_t val; 2854168404Spjd 2855185029Spjd (void) get_numeric_property(zhp, prop, NULL, &source, &val); 2856168404Spjd 2857168404Spjd return (val); 2858168404Spjd} 2859168404Spjd 2860185029Spjdint 2861185029Spjdzfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) 2862185029Spjd{ 2863185029Spjd char buf[64]; 2864185029Spjd 2865209962Smm (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); 2866185029Spjd return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); 2867185029Spjd} 2868185029Spjd 2869168404Spjd/* 2870168404Spjd * Similar to zfs_prop_get(), but returns the value as an integer. 2871168404Spjd */ 2872168404Spjdint 2873168404Spjdzfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, 2874185029Spjd zprop_source_t *src, char *statbuf, size_t statlen) 2875168404Spjd{ 2876168404Spjd char *source; 2877168404Spjd 2878168404Spjd /* 2879168404Spjd * Check to see if this property applies to our object 2880168404Spjd */ 2881185029Spjd if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { 2882168404Spjd return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, 2883168404Spjd dgettext(TEXT_DOMAIN, "cannot get property '%s'"), 2884168404Spjd zfs_prop_to_name(prop))); 2885185029Spjd } 2886168404Spjd 2887168404Spjd if (src) 2888185029Spjd *src = ZPROP_SRC_NONE; 2889168404Spjd 2890168404Spjd if (get_numeric_property(zhp, prop, src, &source, value) != 0) 2891168404Spjd return (-1); 2892168404Spjd 2893168404Spjd get_source(zhp, src, source, statbuf, statlen); 2894168404Spjd 2895168404Spjd return (0); 2896168404Spjd} 2897168404Spjd 2898209962Smmstatic int 2899209962Smmidmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, 2900209962Smm char **domainp, idmap_rid_t *ridp) 2901209962Smm{ 2902277300Ssmh#ifdef illumos 2903209962Smm idmap_get_handle_t *get_hdl = NULL; 2904209962Smm idmap_stat status; 2905209962Smm int err = EINVAL; 2906209962Smm 2907219089Spjd if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) 2908209962Smm goto out; 2909209962Smm 2910209962Smm if (isuser) { 2911209962Smm err = idmap_get_sidbyuid(get_hdl, id, 2912209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2913209962Smm } else { 2914209962Smm err = idmap_get_sidbygid(get_hdl, id, 2915209962Smm IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); 2916209962Smm } 2917209962Smm if (err == IDMAP_SUCCESS && 2918209962Smm idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && 2919209962Smm status == IDMAP_SUCCESS) 2920209962Smm err = 0; 2921209962Smm else 2922209962Smm err = EINVAL; 2923209962Smmout: 2924209962Smm if (get_hdl) 2925209962Smm idmap_get_destroy(get_hdl); 2926209962Smm return (err); 2927277300Ssmh#else /* !illumos */ 2928209962Smm assert(!"invalid code path"); 2929264852Ssmh return (EINVAL); // silence compiler warning 2930277300Ssmh#endif /* illumos */ 2931209962Smm} 2932209962Smm 2933168404Spjd/* 2934209962Smm * convert the propname into parameters needed by kernel 2935209962Smm * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 2936209962Smm * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 2937209962Smm */ 2938209962Smmstatic int 2939209962Smmuserquota_propname_decode(const char *propname, boolean_t zoned, 2940209962Smm zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) 2941209962Smm{ 2942209962Smm zfs_userquota_prop_t type; 2943209962Smm char *cp, *end; 2944209962Smm char *numericsid = NULL; 2945209962Smm boolean_t isuser; 2946209962Smm 2947209962Smm domain[0] = '\0'; 2948275579Sdelphij *ridp = 0; 2949209962Smm /* Figure out the property type ({user|group}{quota|space}) */ 2950209962Smm for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { 2951209962Smm if (strncmp(propname, zfs_userquota_prop_prefixes[type], 2952209962Smm strlen(zfs_userquota_prop_prefixes[type])) == 0) 2953209962Smm break; 2954209962Smm } 2955209962Smm if (type == ZFS_NUM_USERQUOTA_PROPS) 2956209962Smm return (EINVAL); 2957209962Smm *typep = type; 2958209962Smm 2959209962Smm isuser = (type == ZFS_PROP_USERQUOTA || 2960209962Smm type == ZFS_PROP_USERUSED); 2961209962Smm 2962209962Smm cp = strchr(propname, '@') + 1; 2963209962Smm 2964209962Smm if (strchr(cp, '@')) { 2965277300Ssmh#ifdef illumos 2966209962Smm /* 2967209962Smm * It's a SID name (eg "user@domain") that needs to be 2968209962Smm * turned into S-1-domainID-RID. 2969209962Smm */ 2970275579Sdelphij int flag = 0; 2971275579Sdelphij idmap_stat stat, map_stat; 2972275579Sdelphij uid_t pid; 2973275579Sdelphij idmap_rid_t rid; 2974275579Sdelphij idmap_get_handle_t *gh = NULL; 2975275579Sdelphij 2976275579Sdelphij stat = idmap_get_create(&gh); 2977275579Sdelphij if (stat != IDMAP_SUCCESS) { 2978275579Sdelphij idmap_get_destroy(gh); 2979275579Sdelphij return (ENOMEM); 2980275579Sdelphij } 2981209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 2982209962Smm return (ENOENT); 2983209962Smm if (isuser) { 2984275579Sdelphij stat = idmap_getuidbywinname(cp, NULL, flag, &pid); 2985275579Sdelphij if (stat < 0) 2986275579Sdelphij return (ENOENT); 2987275579Sdelphij stat = idmap_get_sidbyuid(gh, pid, flag, &numericsid, 2988275579Sdelphij &rid, &map_stat); 2989209962Smm } else { 2990275579Sdelphij stat = idmap_getgidbywinname(cp, NULL, flag, &pid); 2991275579Sdelphij if (stat < 0) 2992275579Sdelphij return (ENOENT); 2993275579Sdelphij stat = idmap_get_sidbygid(gh, pid, flag, &numericsid, 2994275579Sdelphij &rid, &map_stat); 2995209962Smm } 2996275579Sdelphij if (stat < 0) { 2997275579Sdelphij idmap_get_destroy(gh); 2998209962Smm return (ENOENT); 2999209962Smm } 3000275579Sdelphij stat = idmap_get_mappings(gh); 3001275579Sdelphij idmap_get_destroy(gh); 3002275579Sdelphij 3003275579Sdelphij if (stat < 0) { 3004275579Sdelphij return (ENOENT); 3005275579Sdelphij } 3006209962Smm if (numericsid == NULL) 3007209962Smm return (ENOENT); 3008209962Smm cp = numericsid; 3009275579Sdelphij *ridp = rid; 3010209962Smm /* will be further decoded below */ 3011277300Ssmh#else /* !illumos */ 3012219089Spjd return (ENOENT); 3013277300Ssmh#endif /* illumos */ 3014209962Smm } 3015209962Smm 3016209962Smm if (strncmp(cp, "S-1-", 4) == 0) { 3017209962Smm /* It's a numeric SID (eg "S-1-234-567-89") */ 3018209962Smm (void) strlcpy(domain, cp, domainlen); 3019209962Smm errno = 0; 3020275579Sdelphij if (*ridp == 0) { 3021275579Sdelphij cp = strrchr(domain, '-'); 3022275579Sdelphij *cp = '\0'; 3023275579Sdelphij cp++; 3024275579Sdelphij *ridp = strtoull(cp, &end, 10); 3025275579Sdelphij } else { 3026275579Sdelphij end = ""; 3027275579Sdelphij } 3028209962Smm if (numericsid) { 3029209962Smm free(numericsid); 3030209962Smm numericsid = NULL; 3031209962Smm } 3032209962Smm if (errno != 0 || *end != '\0') 3033209962Smm return (EINVAL); 3034209962Smm } else if (!isdigit(*cp)) { 3035209962Smm /* 3036209962Smm * It's a user/group name (eg "user") that needs to be 3037209962Smm * turned into a uid/gid 3038209962Smm */ 3039209962Smm if (zoned && getzoneid() == GLOBAL_ZONEID) 3040209962Smm return (ENOENT); 3041209962Smm if (isuser) { 3042209962Smm struct passwd *pw; 3043209962Smm pw = getpwnam(cp); 3044209962Smm if (pw == NULL) 3045209962Smm return (ENOENT); 3046209962Smm *ridp = pw->pw_uid; 3047209962Smm } else { 3048209962Smm struct group *gr; 3049209962Smm gr = getgrnam(cp); 3050209962Smm if (gr == NULL) 3051209962Smm return (ENOENT); 3052209962Smm *ridp = gr->gr_gid; 3053209962Smm } 3054209962Smm } else { 3055209962Smm /* It's a user/group ID (eg "12345"). */ 3056209962Smm uid_t id = strtoul(cp, &end, 10); 3057209962Smm idmap_rid_t rid; 3058209962Smm char *mapdomain; 3059209962Smm 3060209962Smm if (*end != '\0') 3061209962Smm return (EINVAL); 3062209962Smm if (id > MAXUID) { 3063209962Smm /* It's an ephemeral ID. */ 3064209962Smm if (idmap_id_to_numeric_domain_rid(id, isuser, 3065209962Smm &mapdomain, &rid) != 0) 3066209962Smm return (ENOENT); 3067209962Smm (void) strlcpy(domain, mapdomain, domainlen); 3068209962Smm *ridp = rid; 3069209962Smm } else { 3070209962Smm *ridp = id; 3071209962Smm } 3072209962Smm } 3073209962Smm 3074209962Smm ASSERT3P(numericsid, ==, NULL); 3075209962Smm return (0); 3076209962Smm} 3077209962Smm 3078209962Smmstatic int 3079209962Smmzfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, 3080209962Smm uint64_t *propvalue, zfs_userquota_prop_t *typep) 3081209962Smm{ 3082209962Smm int err; 3083209962Smm zfs_cmd_t zc = { 0 }; 3084209962Smm 3085228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3086209962Smm 3087209962Smm err = userquota_propname_decode(propname, 3088209962Smm zfs_prop_get_int(zhp, ZFS_PROP_ZONED), 3089209962Smm typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); 3090209962Smm zc.zc_objset_type = *typep; 3091209962Smm if (err) 3092209962Smm return (err); 3093209962Smm 3094209962Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); 3095209962Smm if (err) 3096209962Smm return (err); 3097209962Smm 3098209962Smm *propvalue = zc.zc_cookie; 3099209962Smm return (0); 3100209962Smm} 3101209962Smm 3102209962Smmint 3103209962Smmzfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 3104209962Smm uint64_t *propvalue) 3105209962Smm{ 3106209962Smm zfs_userquota_prop_t type; 3107209962Smm 3108209962Smm return (zfs_prop_get_userquota_common(zhp, propname, propvalue, 3109209962Smm &type)); 3110209962Smm} 3111209962Smm 3112209962Smmint 3113209962Smmzfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 3114209962Smm char *propbuf, int proplen, boolean_t literal) 3115209962Smm{ 3116209962Smm int err; 3117209962Smm uint64_t propvalue; 3118209962Smm zfs_userquota_prop_t type; 3119209962Smm 3120209962Smm err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, 3121209962Smm &type); 3122209962Smm 3123209962Smm if (err) 3124209962Smm return (err); 3125209962Smm 3126209962Smm if (literal) { 3127209962Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 3128209962Smm } else if (propvalue == 0 && 3129209962Smm (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { 3130209962Smm (void) strlcpy(propbuf, "none", proplen); 3131209962Smm } else { 3132209962Smm zfs_nicenum(propvalue, propbuf, proplen); 3133209962Smm } 3134209962Smm return (0); 3135209962Smm} 3136209962Smm 3137228103Smmint 3138228103Smmzfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 3139228103Smm uint64_t *propvalue) 3140168404Spjd{ 3141228103Smm int err; 3142228103Smm zfs_cmd_t zc = { 0 }; 3143228103Smm const char *snapname; 3144168404Spjd 3145228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 3146168404Spjd 3147228103Smm snapname = strchr(propname, '@') + 1; 3148228103Smm if (strchr(snapname, '@')) { 3149228103Smm (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); 3150228103Smm } else { 3151228103Smm /* snapname is the short name, append it to zhp's fsname */ 3152228103Smm char *cp; 3153209962Smm 3154228103Smm (void) strlcpy(zc.zc_value, zhp->zfs_name, 3155228103Smm sizeof (zc.zc_value)); 3156228103Smm cp = strchr(zc.zc_value, '@'); 3157228103Smm if (cp != NULL) 3158228103Smm *cp = '\0'; 3159228103Smm (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); 3160228103Smm (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); 3161228103Smm } 3162209962Smm 3163228103Smm err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); 3164228103Smm if (err) 3165228103Smm return (err); 3166228103Smm 3167228103Smm *propvalue = zc.zc_cookie; 3168228103Smm return (0); 3169209962Smm} 3170209962Smm 3171168404Spjdint 3172228103Smmzfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 3173228103Smm char *propbuf, int proplen, boolean_t literal) 3174168404Spjd{ 3175228103Smm int err; 3176228103Smm uint64_t propvalue; 3177168404Spjd 3178228103Smm err = zfs_prop_get_written_int(zhp, propname, &propvalue); 3179185029Spjd 3180228103Smm if (err) 3181228103Smm return (err); 3182209962Smm 3183228103Smm if (literal) { 3184228103Smm (void) snprintf(propbuf, proplen, "%llu", propvalue); 3185228103Smm } else { 3186228103Smm zfs_nicenum(propvalue, propbuf, proplen); 3187168404Spjd } 3188228103Smm return (0); 3189168404Spjd} 3190168404Spjd 3191168404Spjd/* 3192228103Smm * Returns the name of the given zfs handle. 3193168404Spjd */ 3194228103Smmconst char * 3195228103Smmzfs_get_name(const zfs_handle_t *zhp) 3196168404Spjd{ 3197228103Smm return (zhp->zfs_name); 3198228103Smm} 3199168404Spjd 3200228103Smm/* 3201307106Smav * Returns the name of the parent pool for the given zfs handle. 3202307106Smav */ 3203307106Smavconst char * 3204307106Smavzfs_get_pool_name(const zfs_handle_t *zhp) 3205307106Smav{ 3206307106Smav return (zhp->zpool_hdl->zpool_name); 3207307106Smav} 3208307106Smav 3209307106Smav/* 3210228103Smm * Returns the type of the given zfs handle. 3211228103Smm */ 3212228103Smmzfs_type_t 3213228103Smmzfs_get_type(const zfs_handle_t *zhp) 3214228103Smm{ 3215228103Smm return (zhp->zfs_type); 3216168404Spjd} 3217168404Spjd 3218168404Spjd/* 3219219089Spjd * Is one dataset name a child dataset of another? 3220219089Spjd * 3221219089Spjd * Needs to handle these cases: 3222219089Spjd * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" 3223219089Spjd * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" 3224219089Spjd * Descendant? No. No. No. Yes. 3225219089Spjd */ 3226219089Spjdstatic boolean_t 3227219089Spjdis_descendant(const char *ds1, const char *ds2) 3228219089Spjd{ 3229219089Spjd size_t d1len = strlen(ds1); 3230219089Spjd 3231219089Spjd /* ds2 can't be a descendant if it's smaller */ 3232219089Spjd if (strlen(ds2) < d1len) 3233219089Spjd return (B_FALSE); 3234219089Spjd 3235219089Spjd /* otherwise, compare strings and verify that there's a '/' char */ 3236219089Spjd return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); 3237219089Spjd} 3238219089Spjd 3239219089Spjd/* 3240168404Spjd * Given a complete name, return just the portion that refers to the parent. 3241228103Smm * Will return -1 if there is no parent (path is just the name of the 3242228103Smm * pool). 3243168404Spjd */ 3244168404Spjdstatic int 3245168404Spjdparent_name(const char *path, char *buf, size_t buflen) 3246168404Spjd{ 3247228103Smm char *slashp; 3248168404Spjd 3249228103Smm (void) strlcpy(buf, path, buflen); 3250228103Smm 3251228103Smm if ((slashp = strrchr(buf, '/')) == NULL) 3252168404Spjd return (-1); 3253228103Smm *slashp = '\0'; 3254168404Spjd 3255168404Spjd return (0); 3256168404Spjd} 3257168404Spjd 3258168404Spjd/* 3259185029Spjd * If accept_ancestor is false, then check to make sure that the given path has 3260185029Spjd * a parent, and that it exists. If accept_ancestor is true, then find the 3261185029Spjd * closest existing ancestor for the given path. In prefixlen return the 3262185029Spjd * length of already existing prefix of the given path. We also fetch the 3263185029Spjd * 'zoned' property, which is used to validate property settings when creating 3264185029Spjd * new datasets. 3265168404Spjd */ 3266168404Spjdstatic int 3267185029Spjdcheck_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, 3268185029Spjd boolean_t accept_ancestor, int *prefixlen) 3269168404Spjd{ 3270168404Spjd zfs_cmd_t zc = { 0 }; 3271307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3272168404Spjd char *slash; 3273168404Spjd zfs_handle_t *zhp; 3274168404Spjd char errbuf[1024]; 3275219089Spjd uint64_t is_zoned; 3276168404Spjd 3277209962Smm (void) snprintf(errbuf, sizeof (errbuf), 3278209962Smm dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); 3279168404Spjd 3280168404Spjd /* get parent, and check to see if this is just a pool */ 3281168404Spjd if (parent_name(path, parent, sizeof (parent)) != 0) { 3282168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3283168404Spjd "missing dataset name")); 3284168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3285168404Spjd } 3286168404Spjd 3287168404Spjd /* check to see if the pool exists */ 3288168404Spjd if ((slash = strchr(parent, '/')) == NULL) 3289168404Spjd slash = parent + strlen(parent); 3290168404Spjd (void) strncpy(zc.zc_name, parent, slash - parent); 3291168404Spjd zc.zc_name[slash - parent] = '\0'; 3292168404Spjd if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && 3293168404Spjd errno == ENOENT) { 3294168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3295168404Spjd "no such pool '%s'"), zc.zc_name); 3296168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3297168404Spjd } 3298168404Spjd 3299168404Spjd /* check to see if the parent dataset exists */ 3300185029Spjd while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { 3301185029Spjd if (errno == ENOENT && accept_ancestor) { 3302185029Spjd /* 3303185029Spjd * Go deeper to find an ancestor, give up on top level. 3304185029Spjd */ 3305185029Spjd if (parent_name(parent, parent, sizeof (parent)) != 0) { 3306185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3307185029Spjd "no such pool '%s'"), zc.zc_name); 3308185029Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3309185029Spjd } 3310185029Spjd } else if (errno == ENOENT) { 3311168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3312168404Spjd "parent does not exist")); 3313168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3314185029Spjd } else 3315168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3316168404Spjd } 3317168404Spjd 3318219089Spjd is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 3319219089Spjd if (zoned != NULL) 3320219089Spjd *zoned = is_zoned; 3321219089Spjd 3322168404Spjd /* we are in a non-global zone, but parent is in the global zone */ 3323219089Spjd if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { 3324168404Spjd (void) zfs_standard_error(hdl, EPERM, errbuf); 3325168404Spjd zfs_close(zhp); 3326168404Spjd return (-1); 3327168404Spjd } 3328168404Spjd 3329168404Spjd /* make sure parent is a filesystem */ 3330168404Spjd if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3331168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3332168404Spjd "parent is not a filesystem")); 3333168404Spjd (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3334168404Spjd zfs_close(zhp); 3335168404Spjd return (-1); 3336168404Spjd } 3337168404Spjd 3338168404Spjd zfs_close(zhp); 3339185029Spjd if (prefixlen != NULL) 3340185029Spjd *prefixlen = strlen(parent); 3341168404Spjd return (0); 3342168404Spjd} 3343168404Spjd 3344168404Spjd/* 3345185029Spjd * Finds whether the dataset of the given type(s) exists. 3346185029Spjd */ 3347185029Spjdboolean_t 3348185029Spjdzfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) 3349185029Spjd{ 3350185029Spjd zfs_handle_t *zhp; 3351185029Spjd 3352185029Spjd if (!zfs_validate_name(hdl, path, types, B_FALSE)) 3353185029Spjd return (B_FALSE); 3354185029Spjd 3355185029Spjd /* 3356185029Spjd * Try to get stats for the dataset, which will tell us if it exists. 3357185029Spjd */ 3358185029Spjd if ((zhp = make_dataset_handle(hdl, path)) != NULL) { 3359185029Spjd int ds_type = zhp->zfs_type; 3360185029Spjd 3361185029Spjd zfs_close(zhp); 3362185029Spjd if (types & ds_type) 3363185029Spjd return (B_TRUE); 3364185029Spjd } 3365185029Spjd return (B_FALSE); 3366185029Spjd} 3367185029Spjd 3368185029Spjd/* 3369185029Spjd * Given a path to 'target', create all the ancestors between 3370185029Spjd * the prefixlen portion of the path, and the target itself. 3371185029Spjd * Fail if the initial prefixlen-ancestor does not already exist. 3372185029Spjd */ 3373185029Spjdint 3374185029Spjdcreate_parents(libzfs_handle_t *hdl, char *target, int prefixlen) 3375185029Spjd{ 3376185029Spjd zfs_handle_t *h; 3377185029Spjd char *cp; 3378185029Spjd const char *opname; 3379185029Spjd 3380185029Spjd /* make sure prefix exists */ 3381185029Spjd cp = target + prefixlen; 3382185029Spjd if (*cp != '/') { 3383185029Spjd assert(strchr(cp, '/') == NULL); 3384185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3385185029Spjd } else { 3386185029Spjd *cp = '\0'; 3387185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3388185029Spjd *cp = '/'; 3389185029Spjd } 3390185029Spjd if (h == NULL) 3391185029Spjd return (-1); 3392185029Spjd zfs_close(h); 3393185029Spjd 3394185029Spjd /* 3395185029Spjd * Attempt to create, mount, and share any ancestor filesystems, 3396185029Spjd * up to the prefixlen-long one. 3397185029Spjd */ 3398185029Spjd for (cp = target + prefixlen + 1; 3399307050Smav (cp = strchr(cp, '/')) != NULL; *cp = '/', cp++) { 3400185029Spjd 3401185029Spjd *cp = '\0'; 3402185029Spjd 3403185029Spjd h = make_dataset_handle(hdl, target); 3404185029Spjd if (h) { 3405185029Spjd /* it already exists, nothing to do here */ 3406185029Spjd zfs_close(h); 3407185029Spjd continue; 3408185029Spjd } 3409185029Spjd 3410185029Spjd if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, 3411185029Spjd NULL) != 0) { 3412185029Spjd opname = dgettext(TEXT_DOMAIN, "create"); 3413185029Spjd goto ancestorerr; 3414185029Spjd } 3415185029Spjd 3416185029Spjd h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); 3417185029Spjd if (h == NULL) { 3418185029Spjd opname = dgettext(TEXT_DOMAIN, "open"); 3419185029Spjd goto ancestorerr; 3420185029Spjd } 3421185029Spjd 3422185029Spjd if (zfs_mount(h, NULL, 0) != 0) { 3423185029Spjd opname = dgettext(TEXT_DOMAIN, "mount"); 3424185029Spjd goto ancestorerr; 3425185029Spjd } 3426185029Spjd 3427185029Spjd if (zfs_share(h) != 0) { 3428185029Spjd opname = dgettext(TEXT_DOMAIN, "share"); 3429185029Spjd goto ancestorerr; 3430185029Spjd } 3431185029Spjd 3432185029Spjd zfs_close(h); 3433185029Spjd } 3434185029Spjd 3435185029Spjd return (0); 3436185029Spjd 3437185029Spjdancestorerr: 3438185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3439185029Spjd "failed to %s ancestor '%s'"), opname, target); 3440185029Spjd return (-1); 3441185029Spjd} 3442185029Spjd 3443185029Spjd/* 3444185029Spjd * Creates non-existing ancestors of the given path. 3445185029Spjd */ 3446185029Spjdint 3447185029Spjdzfs_create_ancestors(libzfs_handle_t *hdl, const char *path) 3448185029Spjd{ 3449185029Spjd int prefix; 3450185029Spjd char *path_copy; 3451339129Smav char errbuf[1024]; 3452307107Smav int rc = 0; 3453185029Spjd 3454339129Smav (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3455339129Smav "cannot create '%s'"), path); 3456339129Smav 3457339129Smav /* 3458339129Smav * Check that we are not passing the nesting limit 3459339129Smav * before we start creating any ancestors. 3460339129Smav */ 3461339129Smav if (dataset_nestcheck(path) != 0) { 3462339129Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3463339129Smav "maximum name nesting depth exceeded")); 3464339129Smav return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3465339129Smav } 3466339129Smav 3467219089Spjd if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) 3468185029Spjd return (-1); 3469185029Spjd 3470185029Spjd if ((path_copy = strdup(path)) != NULL) { 3471185029Spjd rc = create_parents(hdl, path_copy, prefix); 3472185029Spjd free(path_copy); 3473185029Spjd } 3474185029Spjd if (path_copy == NULL || rc != 0) 3475185029Spjd return (-1); 3476185029Spjd 3477185029Spjd return (0); 3478185029Spjd} 3479185029Spjd 3480185029Spjd/* 3481168404Spjd * Create a new filesystem or volume. 3482168404Spjd */ 3483168404Spjdint 3484168404Spjdzfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, 3485168404Spjd nvlist_t *props) 3486168404Spjd{ 3487168404Spjd int ret; 3488168404Spjd uint64_t size = 0; 3489168404Spjd uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); 3490168404Spjd char errbuf[1024]; 3491168404Spjd uint64_t zoned; 3492298472Savg enum lzc_dataset_type ost; 3493321576Smav zpool_handle_t *zpool_handle; 3494168404Spjd 3495168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3496168404Spjd "cannot create '%s'"), path); 3497168404Spjd 3498168404Spjd /* validate the path, taking care to note the extended error message */ 3499185029Spjd if (!zfs_validate_name(hdl, path, type, B_TRUE)) 3500168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3501168404Spjd 3502339129Smav if (dataset_nestcheck(path) != 0) { 3503339129Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3504339129Smav "maximum name nesting depth exceeded")); 3505339129Smav return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3506339129Smav } 3507339129Smav 3508168404Spjd /* validate parents exist */ 3509185029Spjd if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) 3510168404Spjd return (-1); 3511168404Spjd 3512168404Spjd /* 3513168404Spjd * The failure modes when creating a dataset of a different type over 3514168404Spjd * one that already exists is a little strange. In particular, if you 3515168404Spjd * try to create a dataset on top of an existing dataset, the ioctl() 3516168404Spjd * will return ENOENT, not EEXIST. To prevent this from happening, we 3517168404Spjd * first try to see if the dataset exists. 3518168404Spjd */ 3519248571Smm if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { 3520168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3521168404Spjd "dataset already exists")); 3522168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3523168404Spjd } 3524168404Spjd 3525168404Spjd if (type == ZFS_TYPE_VOLUME) 3526298472Savg ost = LZC_DATSET_TYPE_ZVOL; 3527168404Spjd else 3528298472Savg ost = LZC_DATSET_TYPE_ZFS; 3529168404Spjd 3530289500Smav /* open zpool handle for prop validation */ 3531307108Smav char pool_path[ZFS_MAX_DATASET_NAME_LEN]; 3532289500Smav (void) strlcpy(pool_path, path, sizeof (pool_path)); 3533289500Smav 3534289500Smav /* truncate pool_path at first slash */ 3535289500Smav char *p = strchr(pool_path, '/'); 3536289500Smav if (p != NULL) 3537289500Smav *p = '\0'; 3538289500Smav 3539321576Smav if ((zpool_handle = zpool_open(hdl, pool_path)) == NULL) 3540321576Smav return (-1); 3541289500Smav 3542185029Spjd if (props && (props = zfs_valid_proplist(hdl, type, props, 3543289500Smav zoned, NULL, zpool_handle, errbuf)) == 0) { 3544289500Smav zpool_close(zpool_handle); 3545168404Spjd return (-1); 3546289500Smav } 3547289500Smav zpool_close(zpool_handle); 3548168404Spjd 3549168404Spjd if (type == ZFS_TYPE_VOLUME) { 3550168404Spjd /* 3551168404Spjd * If we are creating a volume, the size and block size must 3552168404Spjd * satisfy a few restraints. First, the blocksize must be a 3553168404Spjd * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the 3554168404Spjd * volsize must be a multiple of the block size, and cannot be 3555168404Spjd * zero. 3556168404Spjd */ 3557168404Spjd if (props == NULL || nvlist_lookup_uint64(props, 3558168404Spjd zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { 3559168404Spjd nvlist_free(props); 3560168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3561168404Spjd "missing volume size")); 3562168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3563168404Spjd } 3564168404Spjd 3565168404Spjd if ((ret = nvlist_lookup_uint64(props, 3566168404Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3567168404Spjd &blocksize)) != 0) { 3568168404Spjd if (ret == ENOENT) { 3569168404Spjd blocksize = zfs_prop_default_numeric( 3570168404Spjd ZFS_PROP_VOLBLOCKSIZE); 3571168404Spjd } else { 3572168404Spjd nvlist_free(props); 3573168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3574168404Spjd "missing volume block size")); 3575168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3576168404Spjd } 3577168404Spjd } 3578168404Spjd 3579168404Spjd if (size == 0) { 3580168404Spjd nvlist_free(props); 3581168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3582168404Spjd "volume size cannot be zero")); 3583168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3584168404Spjd } 3585168404Spjd 3586168404Spjd if (size % blocksize != 0) { 3587168404Spjd nvlist_free(props); 3588168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3589168404Spjd "volume size must be a multiple of volume block " 3590168404Spjd "size")); 3591168404Spjd return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3592168404Spjd } 3593168404Spjd } 3594168404Spjd 3595248571Smm /* create the dataset */ 3596248571Smm ret = lzc_create(path, ost, props); 3597168404Spjd nvlist_free(props); 3598168404Spjd 3599168404Spjd /* check for failure */ 3600168404Spjd if (ret != 0) { 3601307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3602168404Spjd (void) parent_name(path, parent, sizeof (parent)); 3603168404Spjd 3604168404Spjd switch (errno) { 3605168404Spjd case ENOENT: 3606168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3607168404Spjd "no such parent '%s'"), parent); 3608168404Spjd return (zfs_error(hdl, EZFS_NOENT, errbuf)); 3609168404Spjd 3610168404Spjd case EINVAL: 3611168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3612168404Spjd "parent '%s' is not a filesystem"), parent); 3613168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3614168404Spjd 3615185029Spjd case ENOTSUP: 3616185029Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3617185029Spjd "pool must be upgraded to set this " 3618185029Spjd "property or value")); 3619185029Spjd return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3620329489Smav case ERANGE: 3621329489Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3622329489Smav "invalid property value(s) specified")); 3623329489Smav return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 3624168404Spjd#ifdef _ILP32 3625168404Spjd case EOVERFLOW: 3626168404Spjd /* 3627168404Spjd * This platform can't address a volume this big. 3628168404Spjd */ 3629168404Spjd if (type == ZFS_TYPE_VOLUME) 3630168404Spjd return (zfs_error(hdl, EZFS_VOLTOOBIG, 3631168404Spjd errbuf)); 3632168404Spjd#endif 3633168404Spjd /* FALLTHROUGH */ 3634168404Spjd default: 3635168404Spjd return (zfs_standard_error(hdl, errno, errbuf)); 3636168404Spjd } 3637168404Spjd } 3638168404Spjd 3639168404Spjd return (0); 3640168404Spjd} 3641168404Spjd 3642168404Spjd/* 3643168404Spjd * Destroys the given dataset. The caller must make sure that the filesystem 3644238422Smm * isn't mounted, and that there are no active dependents. If the file system 3645238422Smm * does not exist this function does nothing. 3646168404Spjd */ 3647168404Spjdint 3648219089Spjdzfs_destroy(zfs_handle_t *zhp, boolean_t defer) 3649168404Spjd{ 3650342943Savg int error; 3651168404Spjd 3652342943Savg if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT && defer) 3653342943Savg return (EINVAL); 3654342943Savg 3655260183Sdelphij if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { 3656260183Sdelphij nvlist_t *nv = fnvlist_alloc(); 3657260183Sdelphij fnvlist_add_boolean(nv, zhp->zfs_name); 3658342943Savg error = lzc_destroy_bookmarks(nv, NULL); 3659260183Sdelphij fnvlist_free(nv); 3660260183Sdelphij if (error != 0) { 3661342943Savg return (zfs_standard_error_fmt(zhp->zfs_hdl, error, 3662260183Sdelphij dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3663260183Sdelphij zhp->zfs_name)); 3664260183Sdelphij } 3665260183Sdelphij return (0); 3666260183Sdelphij } 3667260183Sdelphij 3668342943Savg if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3669342943Savg nvlist_t *nv = fnvlist_alloc(); 3670342943Savg fnvlist_add_boolean(nv, zhp->zfs_name); 3671342943Savg error = lzc_destroy_snaps(nv, defer, NULL); 3672342943Savg fnvlist_free(nv); 3673168404Spjd } else { 3674342943Savg error = lzc_destroy(zhp->zfs_name); 3675168404Spjd } 3676168404Spjd 3677342943Savg if (error != 0 && error != ENOENT) { 3678168404Spjd return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, 3679168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), 3680168404Spjd zhp->zfs_name)); 3681168404Spjd } 3682168404Spjd 3683168404Spjd remove_mountpoint(zhp); 3684168404Spjd 3685168404Spjd return (0); 3686168404Spjd} 3687168404Spjd 3688168404Spjdstruct destroydata { 3689228103Smm nvlist_t *nvl; 3690228103Smm const char *snapname; 3691168404Spjd}; 3692168404Spjd 3693168404Spjdstatic int 3694219089Spjdzfs_check_snap_cb(zfs_handle_t *zhp, void *arg) 3695168404Spjd{ 3696168404Spjd struct destroydata *dd = arg; 3697307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 3698219089Spjd int rv = 0; 3699168404Spjd 3700228103Smm (void) snprintf(name, sizeof (name), 3701228103Smm "%s@%s", zhp->zfs_name, dd->snapname); 3702168404Spjd 3703251646Sdelphij if (lzc_exists(name)) 3704228103Smm verify(nvlist_add_boolean(dd->nvl, name) == 0); 3705168404Spjd 3706228103Smm rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); 3707228103Smm zfs_close(zhp); 3708168404Spjd return (rv); 3709168404Spjd} 3710168404Spjd 3711168404Spjd/* 3712168404Spjd * Destroys all snapshots with the given name in zhp & descendants. 3713168404Spjd */ 3714168404Spjdint 3715219089Spjdzfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) 3716168404Spjd{ 3717168404Spjd int ret; 3718168404Spjd struct destroydata dd = { 0 }; 3719168404Spjd 3720168404Spjd dd.snapname = snapname; 3721228103Smm verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); 3722228103Smm (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); 3723168404Spjd 3724251646Sdelphij if (nvlist_empty(dd.nvl)) { 3725228103Smm ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, 3726168404Spjd dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), 3727228103Smm zhp->zfs_name, snapname); 3728228103Smm } else { 3729248571Smm ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); 3730168404Spjd } 3731228103Smm nvlist_free(dd.nvl); 3732228103Smm return (ret); 3733228103Smm} 3734168404Spjd 3735228103Smm/* 3736248571Smm * Destroys all the snapshots named in the nvlist. 3737228103Smm */ 3738228103Smmint 3739248571Smmzfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) 3740228103Smm{ 3741228103Smm int ret; 3742307105Smav nvlist_t *errlist = NULL; 3743228103Smm 3744248571Smm ret = lzc_destroy_snaps(snaps, defer, &errlist); 3745168404Spjd 3746307105Smav if (ret == 0) { 3747307105Smav nvlist_free(errlist); 3748248571Smm return (0); 3749307105Smav } 3750248571Smm 3751251646Sdelphij if (nvlist_empty(errlist)) { 3752168404Spjd char errbuf[1024]; 3753248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3754248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); 3755168404Spjd 3756248571Smm ret = zfs_standard_error(hdl, ret, errbuf); 3757248571Smm } 3758248571Smm for (nvpair_t *pair = nvlist_next_nvpair(errlist, NULL); 3759248571Smm pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { 3760248571Smm char errbuf[1024]; 3761248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3762248571Smm dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), 3763248571Smm nvpair_name(pair)); 3764168404Spjd 3765248571Smm switch (fnvpair_value_int32(pair)) { 3766168404Spjd case EEXIST: 3767248571Smm zfs_error_aux(hdl, 3768248571Smm dgettext(TEXT_DOMAIN, "snapshot is cloned")); 3769248571Smm ret = zfs_error(hdl, EZFS_EXISTS, errbuf); 3770248571Smm break; 3771168404Spjd default: 3772248571Smm ret = zfs_standard_error(hdl, errno, errbuf); 3773248571Smm break; 3774168404Spjd } 3775168404Spjd } 3776168404Spjd 3777307105Smav nvlist_free(errlist); 3778248571Smm return (ret); 3779168404Spjd} 3780168404Spjd 3781168404Spjd/* 3782168404Spjd * Clones the given dataset. The target must be of the same type as the source. 3783168404Spjd */ 3784168404Spjdint 3785168404Spjdzfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) 3786168404Spjd{ 3787307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 3788168404Spjd int ret; 3789168404Spjd char errbuf[1024]; 3790168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3791168404Spjd uint64_t zoned; 3792168404Spjd 3793168404Spjd assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); 3794168404Spjd 3795168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3796168404Spjd "cannot create '%s'"), target); 3797168404Spjd 3798228103Smm /* validate the target/clone name */ 3799185029Spjd if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) 3800168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3801168404Spjd 3802168404Spjd /* validate parents exist */ 3803185029Spjd if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) 3804168404Spjd return (-1); 3805168404Spjd 3806168404Spjd (void) parent_name(target, parent, sizeof (parent)); 3807168404Spjd 3808168404Spjd /* do the clone */ 3809168404Spjd 3810168404Spjd if (props) { 3811248571Smm zfs_type_t type; 3812339103Smav 3813248571Smm if (ZFS_IS_VOLUME(zhp)) { 3814248571Smm type = ZFS_TYPE_VOLUME; 3815248571Smm } else { 3816248571Smm type = ZFS_TYPE_FILESYSTEM; 3817248571Smm } 3818185029Spjd if ((props = zfs_valid_proplist(hdl, type, props, zoned, 3819289500Smav zhp, zhp->zpool_hdl, errbuf)) == NULL) 3820168404Spjd return (-1); 3821339103Smav if (zfs_fix_auto_resv(zhp, props) == -1) { 3822339103Smav nvlist_free(props); 3823339103Smav return (-1); 3824339103Smav } 3825168404Spjd } 3826168404Spjd 3827248571Smm ret = lzc_clone(target, zhp->zfs_name, props); 3828248571Smm nvlist_free(props); 3829168404Spjd 3830168404Spjd if (ret != 0) { 3831168404Spjd switch (errno) { 3832168404Spjd 3833168404Spjd case ENOENT: 3834168404Spjd /* 3835168404Spjd * The parent doesn't exist. We should have caught this 3836168404Spjd * above, but there may a race condition that has since 3837168404Spjd * destroyed the parent. 3838168404Spjd * 3839168404Spjd * At this point, we don't know whether it's the source 3840168404Spjd * that doesn't exist anymore, or whether the target 3841168404Spjd * dataset doesn't exist. 3842168404Spjd */ 3843168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3844168404Spjd "no such parent '%s'"), parent); 3845168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); 3846168404Spjd 3847168404Spjd case EXDEV: 3848168404Spjd zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 3849168404Spjd "source and target pools differ")); 3850168404Spjd return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, 3851168404Spjd errbuf)); 3852168404Spjd 3853168404Spjd default: 3854168404Spjd return (zfs_standard_error(zhp->zfs_hdl, errno, 3855168404Spjd errbuf)); 3856168404Spjd } 3857168404Spjd } 3858168404Spjd 3859168404Spjd return (ret); 3860168404Spjd} 3861168404Spjd 3862168404Spjd/* 3863168404Spjd * Promotes the given clone fs to be the clone parent. 3864168404Spjd */ 3865168404Spjdint 3866168404Spjdzfs_promote(zfs_handle_t *zhp) 3867168404Spjd{ 3868168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 3869321577Smav char snapname[ZFS_MAX_DATASET_NAME_LEN]; 3870168404Spjd int ret; 3871168404Spjd char errbuf[1024]; 3872168404Spjd 3873168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3874168404Spjd "cannot promote '%s'"), zhp->zfs_name); 3875168404Spjd 3876168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 3877168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3878168404Spjd "snapshots can not be promoted")); 3879168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3880168404Spjd } 3881168404Spjd 3882321577Smav if (zhp->zfs_dmustats.dds_origin[0] == '\0') { 3883168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3884168404Spjd "not a cloned filesystem")); 3885168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 3886168404Spjd } 3887168404Spjd 3888332535Smav if (!zfs_validate_name(hdl, zhp->zfs_name, zhp->zfs_type, B_TRUE)) 3889332535Smav return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3890332535Smav 3891321577Smav ret = lzc_promote(zhp->zfs_name, snapname, sizeof (snapname)); 3892168404Spjd 3893168404Spjd if (ret != 0) { 3894321577Smav switch (ret) { 3895168404Spjd case EEXIST: 3896219089Spjd /* There is a conflicting snapshot name. */ 3897168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3898219089Spjd "conflicting snapshot '%s' from parent '%s'"), 3899321577Smav snapname, zhp->zfs_dmustats.dds_origin); 3900168404Spjd return (zfs_error(hdl, EZFS_EXISTS, errbuf)); 3901168404Spjd 3902168404Spjd default: 3903321577Smav return (zfs_standard_error(hdl, ret, errbuf)); 3904168404Spjd } 3905168404Spjd } 3906168404Spjd return (ret); 3907168404Spjd} 3908168404Spjd 3909248571Smmtypedef struct snapdata { 3910248571Smm nvlist_t *sd_nvl; 3911248571Smm const char *sd_snapname; 3912248571Smm} snapdata_t; 3913248571Smm 3914248571Smmstatic int 3915248571Smmzfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3916248571Smm{ 3917248571Smm snapdata_t *sd = arg; 3918307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 3919248571Smm int rv = 0; 3920248571Smm 3921253819Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { 3922253819Sdelphij (void) snprintf(name, sizeof (name), 3923253819Sdelphij "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3924248571Smm 3925253819Sdelphij fnvlist_add_boolean(sd->sd_nvl, name); 3926248571Smm 3927253819Sdelphij rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3928253819Sdelphij } 3929248571Smm zfs_close(zhp); 3930253819Sdelphij 3931248571Smm return (rv); 3932248571Smm} 3933248571Smm 3934332525Smavint 3935332525Smavzfs_remap_indirects(libzfs_handle_t *hdl, const char *fs) 3936332525Smav{ 3937332525Smav int err; 3938332525Smav char errbuf[1024]; 3939332525Smav 3940332525Smav (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3941339119Smav "cannot remap dataset '%s'"), fs); 3942332525Smav 3943332525Smav err = lzc_remap(fs); 3944332525Smav 3945332525Smav if (err != 0) { 3946339119Smav switch (err) { 3947339119Smav case ENOTSUP: 3948339119Smav zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3949339119Smav "pool must be upgraded")); 3950339119Smav (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 3951339119Smav break; 3952339119Smav case EINVAL: 3953339119Smav (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 3954339119Smav break; 3955339119Smav default: 3956339119Smav (void) zfs_standard_error(hdl, err, errbuf); 3957339119Smav break; 3958339119Smav } 3959332525Smav } 3960332525Smav 3961332525Smav return (err); 3962332525Smav} 3963332525Smav 3964168404Spjd/* 3965248571Smm * Creates snapshots. The keys in the snaps nvlist are the snapshots to be 3966248571Smm * created. 3967168404Spjd */ 3968168404Spjdint 3969248571Smmzfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) 3970168404Spjd{ 3971168404Spjd int ret; 3972168404Spjd char errbuf[1024]; 3973248571Smm nvpair_t *elem; 3974248571Smm nvlist_t *errors; 3975168404Spjd 3976168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3977248571Smm "cannot create snapshots ")); 3978168404Spjd 3979248571Smm elem = NULL; 3980248571Smm while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { 3981248571Smm const char *snapname = nvpair_name(elem); 3982168404Spjd 3983248571Smm /* validate the target name */ 3984248571Smm if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, 3985248571Smm B_TRUE)) { 3986248571Smm (void) snprintf(errbuf, sizeof (errbuf), 3987248571Smm dgettext(TEXT_DOMAIN, 3988248571Smm "cannot create snapshot '%s'"), snapname); 3989248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3990248571Smm } 3991248571Smm } 3992185029Spjd 3993289500Smav /* 3994289500Smav * get pool handle for prop validation. assumes all snaps are in the 3995289500Smav * same pool, as does lzc_snapshot (below). 3996289500Smav */ 3997307108Smav char pool[ZFS_MAX_DATASET_NAME_LEN]; 3998289500Smav elem = nvlist_next_nvpair(snaps, NULL); 3999289500Smav (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); 4000289500Smav pool[strcspn(pool, "/@")] = '\0'; 4001289500Smav zpool_handle_t *zpool_hdl = zpool_open(hdl, pool); 4002289500Smav 4003248571Smm if (props != NULL && 4004248571Smm (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, 4005289500Smav props, B_FALSE, NULL, zpool_hdl, errbuf)) == NULL) { 4006289500Smav zpool_close(zpool_hdl); 4007248571Smm return (-1); 4008248571Smm } 4009289500Smav zpool_close(zpool_hdl); 4010248571Smm 4011248571Smm ret = lzc_snapshot(snaps, props, &errors); 4012248571Smm 4013248571Smm if (ret != 0) { 4014248571Smm boolean_t printed = B_FALSE; 4015248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4016248571Smm elem != NULL; 4017248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4018248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4019248571Smm dgettext(TEXT_DOMAIN, 4020248571Smm "cannot create snapshot '%s'"), nvpair_name(elem)); 4021248571Smm (void) zfs_standard_error(hdl, 4022248571Smm fnvpair_value_int32(elem), errbuf); 4023248571Smm printed = B_TRUE; 4024185029Spjd } 4025248571Smm if (!printed) { 4026248571Smm switch (ret) { 4027248571Smm case EXDEV: 4028248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4029248571Smm "multiple snapshots of same " 4030248571Smm "fs not allowed")); 4031248571Smm (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4032185029Spjd 4033248571Smm break; 4034248571Smm default: 4035248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4036248571Smm } 4037248571Smm } 4038185029Spjd } 4039185029Spjd 4040248571Smm nvlist_free(props); 4041248571Smm nvlist_free(errors); 4042248571Smm return (ret); 4043248571Smm} 4044168404Spjd 4045248571Smmint 4046248571Smmzfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, 4047248571Smm nvlist_t *props) 4048248571Smm{ 4049248571Smm int ret; 4050248571Smm snapdata_t sd = { 0 }; 4051307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 4052248571Smm char *cp; 4053248571Smm zfs_handle_t *zhp; 4054248571Smm char errbuf[1024]; 4055248571Smm 4056248571Smm (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4057248571Smm "cannot snapshot %s"), path); 4058248571Smm 4059248571Smm if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) 4060248571Smm return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4061248571Smm 4062248571Smm (void) strlcpy(fsname, path, sizeof (fsname)); 4063248571Smm cp = strchr(fsname, '@'); 4064248571Smm *cp = '\0'; 4065248571Smm sd.sd_snapname = cp + 1; 4066248571Smm 4067248571Smm if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | 4068168404Spjd ZFS_TYPE_VOLUME)) == NULL) { 4069168404Spjd return (-1); 4070168404Spjd } 4071168404Spjd 4072248571Smm verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); 4073248571Smm if (recursive) { 4074248571Smm (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); 4075248571Smm } else { 4076248571Smm fnvlist_add_boolean(sd.sd_nvl, path); 4077168404Spjd } 4078168404Spjd 4079248571Smm ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); 4080248571Smm nvlist_free(sd.sd_nvl); 4081168404Spjd zfs_close(zhp); 4082168404Spjd return (ret); 4083168404Spjd} 4084168404Spjd 4085168404Spjd/* 4086168404Spjd * Destroy any more recent snapshots. We invoke this callback on any dependents 4087168404Spjd * of the snapshot first. If the 'cb_dependent' member is non-zero, then this 4088168404Spjd * is a dependent and we should just destroy it without checking the transaction 4089168404Spjd * group. 4090168404Spjd */ 4091168404Spjdtypedef struct rollback_data { 4092168404Spjd const char *cb_target; /* the snapshot */ 4093168404Spjd uint64_t cb_create; /* creation time reference */ 4094185029Spjd boolean_t cb_error; 4095185029Spjd boolean_t cb_force; 4096168404Spjd} rollback_data_t; 4097168404Spjd 4098168404Spjdstatic int 4099260183Sdelphijrollback_destroy_dependent(zfs_handle_t *zhp, void *data) 4100168404Spjd{ 4101168404Spjd rollback_data_t *cbp = data; 4102260183Sdelphij prop_changelist_t *clp; 4103168404Spjd 4104260183Sdelphij /* We must destroy this clone; first unmount it */ 4105260183Sdelphij clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, 4106260183Sdelphij cbp->cb_force ? MS_FORCE: 0); 4107260183Sdelphij if (clp == NULL || changelist_prefix(clp) != 0) { 4108260183Sdelphij cbp->cb_error = B_TRUE; 4109260183Sdelphij zfs_close(zhp); 4110260183Sdelphij return (0); 4111260183Sdelphij } 4112260183Sdelphij if (zfs_destroy(zhp, B_FALSE) != 0) 4113260183Sdelphij cbp->cb_error = B_TRUE; 4114260183Sdelphij else 4115260183Sdelphij changelist_remove(clp, zhp->zfs_name); 4116260183Sdelphij (void) changelist_postfix(clp); 4117260183Sdelphij changelist_free(clp); 4118168404Spjd 4119260183Sdelphij zfs_close(zhp); 4120260183Sdelphij return (0); 4121260183Sdelphij} 4122168404Spjd 4123260183Sdelphijstatic int 4124260183Sdelphijrollback_destroy(zfs_handle_t *zhp, void *data) 4125260183Sdelphij{ 4126260183Sdelphij rollback_data_t *cbp = data; 4127185029Spjd 4128260183Sdelphij if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 4129260183Sdelphij cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, 4130260183Sdelphij rollback_destroy_dependent, cbp); 4131260183Sdelphij 4132260183Sdelphij cbp->cb_error |= zfs_destroy(zhp, B_FALSE); 4133168404Spjd } 4134168404Spjd 4135168404Spjd zfs_close(zhp); 4136168404Spjd return (0); 4137168404Spjd} 4138168404Spjd 4139168404Spjd/* 4140168404Spjd * Given a dataset, rollback to a specific snapshot, discarding any 4141168404Spjd * data changes since then and making it the active dataset. 4142168404Spjd * 4143260183Sdelphij * Any snapshots and bookmarks more recent than the target are 4144260183Sdelphij * destroyed, along with their dependents (i.e. clones). 4145168404Spjd */ 4146168404Spjdint 4147185029Spjdzfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) 4148168404Spjd{ 4149168404Spjd rollback_data_t cb = { 0 }; 4150185029Spjd int err; 4151185029Spjd boolean_t restore_resv = 0; 4152307107Smav uint64_t old_volsize = 0, new_volsize; 4153185029Spjd zfs_prop_t resv_prop; 4154168404Spjd 4155185029Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || 4156185029Spjd zhp->zfs_type == ZFS_TYPE_VOLUME); 4157168404Spjd 4158168404Spjd /* 4159239774Smm * Destroy all recent snapshots and their dependents. 4160168404Spjd */ 4161185029Spjd cb.cb_force = force; 4162168404Spjd cb.cb_target = snap->zfs_name; 4163168404Spjd cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 4164260183Sdelphij (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb); 4165260183Sdelphij (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); 4166168404Spjd 4167185029Spjd if (cb.cb_error) 4168185029Spjd return (-1); 4169168404Spjd 4170168404Spjd /* 4171168404Spjd * Now that we have verified that the snapshot is the latest, 4172168404Spjd * rollback to the given snapshot. 4173168404Spjd */ 4174168404Spjd 4175185029Spjd if (zhp->zfs_type == ZFS_TYPE_VOLUME) { 4176185029Spjd if (zfs_which_resv_prop(zhp, &resv_prop) < 0) 4177185029Spjd return (-1); 4178185029Spjd old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 4179185029Spjd restore_resv = 4180185029Spjd (old_volsize == zfs_prop_get_int(zhp, resv_prop)); 4181168404Spjd } 4182168404Spjd 4183168404Spjd /* 4184323757Savg * Pass both the filesystem and the wanted snapshot names, 4185323757Savg * we would get an error back if the snapshot is destroyed or 4186323757Savg * a new snapshot is created before this request is processed. 4187168404Spjd */ 4188323757Savg err = lzc_rollback_to(zhp->zfs_name, snap->zfs_name); 4189330590Savg if (err != 0) { 4190330590Savg char errbuf[1024]; 4191330590Savg 4192330590Savg (void) snprintf(errbuf, sizeof (errbuf), 4193323757Savg dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), 4194323757Savg zhp->zfs_name); 4195330590Savg switch (err) { 4196330590Savg case EEXIST: 4197330590Savg zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 4198330590Savg "there is a snapshot or bookmark more recent " 4199330590Savg "than '%s'"), snap->zfs_name); 4200330590Savg (void) zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf); 4201330590Savg break; 4202330590Savg case ESRCH: 4203330590Savg zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, 4204330590Savg "'%s' is not found among snapshots of '%s'"), 4205330590Savg snap->zfs_name, zhp->zfs_name); 4206330590Savg (void) zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf); 4207330590Savg break; 4208330590Savg case EINVAL: 4209330590Savg (void) zfs_error(zhp->zfs_hdl, EZFS_BADTYPE, errbuf); 4210330590Savg break; 4211330590Savg default: 4212330590Savg (void) zfs_standard_error(zhp->zfs_hdl, err, errbuf); 4213330590Savg } 4214323757Savg return (err); 4215185029Spjd } 4216168404Spjd 4217185029Spjd /* 4218185029Spjd * For volumes, if the pre-rollback volsize matched the pre- 4219185029Spjd * rollback reservation and the volsize has changed then set 4220185029Spjd * the reservation property to the post-rollback volsize. 4221185029Spjd * Make a new handle since the rollback closed the dataset. 4222185029Spjd */ 4223185029Spjd if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && 4224185029Spjd (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { 4225185029Spjd if (restore_resv) { 4226185029Spjd new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); 4227185029Spjd if (old_volsize != new_volsize) 4228185029Spjd err = zfs_prop_set_int(zhp, resv_prop, 4229185029Spjd new_volsize); 4230185029Spjd } 4231185029Spjd zfs_close(zhp); 4232185029Spjd } 4233185029Spjd return (err); 4234168404Spjd} 4235168404Spjd 4236168404Spjd/* 4237168404Spjd * Renames the given dataset. 4238168404Spjd */ 4239168404Spjdint 4240240870Spjdzfs_rename(zfs_handle_t *zhp, const char *source, const char *target, 4241240870Spjd renameflags_t flags) 4242168404Spjd{ 4243307050Smav int ret = 0; 4244168404Spjd zfs_cmd_t zc = { 0 }; 4245168404Spjd char *delim; 4246168676Spjd prop_changelist_t *cl = NULL; 4247168676Spjd zfs_handle_t *zhrp = NULL; 4248168676Spjd char *parentname = NULL; 4249307108Smav char parent[ZFS_MAX_DATASET_NAME_LEN]; 4250226676Spjd char property[ZFS_MAXPROPLEN]; 4251168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4252168404Spjd char errbuf[1024]; 4253168404Spjd 4254168404Spjd /* if we have the same exact name, just return success */ 4255168404Spjd if (strcmp(zhp->zfs_name, target) == 0) 4256168404Spjd return (0); 4257168404Spjd 4258168404Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4259168404Spjd "cannot rename to '%s'"), target); 4260168404Spjd 4261240870Spjd if (source != NULL) { 4262240870Spjd /* 4263240870Spjd * This is recursive snapshots rename, put snapshot name 4264240870Spjd * (that might not exist) into zfs_name. 4265240870Spjd */ 4266240870Spjd assert(flags.recurse); 4267240870Spjd 4268240870Spjd (void) strlcat(zhp->zfs_name, "@", sizeof(zhp->zfs_name)); 4269240870Spjd (void) strlcat(zhp->zfs_name, source, sizeof(zhp->zfs_name)); 4270240870Spjd zhp->zfs_type = ZFS_TYPE_SNAPSHOT; 4271240870Spjd } 4272240870Spjd 4273332535Smav /* make sure source name is valid */ 4274332535Smav if (!zfs_validate_name(hdl, zhp->zfs_name, zhp->zfs_type, B_TRUE)) 4275332535Smav return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4276332535Smav 4277168404Spjd /* 4278168404Spjd * Make sure the target name is valid 4279168404Spjd */ 4280168404Spjd if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { 4281168404Spjd if ((strchr(target, '@') == NULL) || 4282168404Spjd *target == '@') { 4283168404Spjd /* 4284168404Spjd * Snapshot target name is abbreviated, 4285168404Spjd * reconstruct full dataset name 4286168404Spjd */ 4287168404Spjd (void) strlcpy(parent, zhp->zfs_name, 4288168404Spjd sizeof (parent)); 4289168404Spjd delim = strchr(parent, '@'); 4290168404Spjd if (strchr(target, '@') == NULL) 4291168404Spjd *(++delim) = '\0'; 4292168404Spjd else 4293168404Spjd *delim = '\0'; 4294168404Spjd (void) strlcat(parent, target, sizeof (parent)); 4295168404Spjd target = parent; 4296168404Spjd } else { 4297168404Spjd /* 4298168404Spjd * Make sure we're renaming within the same dataset. 4299168404Spjd */ 4300168404Spjd delim = strchr(target, '@'); 4301168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) 4302168404Spjd != 0 || zhp->zfs_name[delim - target] != '@') { 4303168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4304168404Spjd "snapshots must be part of same " 4305168404Spjd "dataset")); 4306168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, 4307168404Spjd errbuf)); 4308168404Spjd } 4309168404Spjd } 4310339129Smav 4311185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 4312168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4313168404Spjd } else { 4314226705Spjd if (flags.recurse) { 4315168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4316168676Spjd "recursive rename must be a snapshot")); 4317168676Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 4318168676Spjd } 4319168676Spjd 4320185029Spjd if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) 4321168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4322168404Spjd 4323168404Spjd /* validate parents */ 4324219089Spjd if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) 4325168404Spjd return (-1); 4326168404Spjd 4327168404Spjd /* make sure we're in the same pool */ 4328168404Spjd verify((delim = strchr(target, '/')) != NULL); 4329168404Spjd if (strncmp(zhp->zfs_name, target, delim - target) != 0 || 4330168404Spjd zhp->zfs_name[delim - target] != '/') { 4331168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4332168404Spjd "datasets must be within same pool")); 4333168404Spjd return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); 4334168404Spjd } 4335168404Spjd 4336168404Spjd /* new name cannot be a child of the current dataset name */ 4337219089Spjd if (is_descendant(zhp->zfs_name, target)) { 4338168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4339219089Spjd "New dataset name cannot be a descendant of " 4340168404Spjd "current dataset name")); 4341168404Spjd return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 4342168404Spjd } 4343168404Spjd } 4344168404Spjd 4345168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 4346168404Spjd dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); 4347168404Spjd 4348168404Spjd if (getzoneid() == GLOBAL_ZONEID && 4349168404Spjd zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { 4350168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4351168404Spjd "dataset is used in a non-global zone")); 4352168404Spjd return (zfs_error(hdl, EZFS_ZONED, errbuf)); 4353168404Spjd } 4354168404Spjd 4355226705Spjd /* 4356226705Spjd * Avoid unmounting file systems with mountpoint property set to 4357226705Spjd * 'legacy' or 'none' even if -u option is not given. 4358226705Spjd */ 4359226705Spjd if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && 4360226705Spjd !flags.recurse && !flags.nounmount && 4361226705Spjd zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, 4362226705Spjd sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && 4363226705Spjd (strcmp(property, "legacy") == 0 || 4364226705Spjd strcmp(property, "none") == 0)) { 4365226705Spjd flags.nounmount = B_TRUE; 4366226705Spjd } 4367226705Spjd if (flags.recurse) { 4368226705Spjd 4369185029Spjd parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); 4370185029Spjd if (parentname == NULL) { 4371185029Spjd ret = -1; 4372185029Spjd goto error; 4373185029Spjd } 4374168676Spjd delim = strchr(parentname, '@'); 4375168676Spjd *delim = '\0'; 4376185029Spjd zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); 4377168676Spjd if (zhrp == NULL) { 4378185029Spjd ret = -1; 4379185029Spjd goto error; 4380168676Spjd } 4381268469Sdelphij } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { 4382226676Spjd if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 4383235216Smm flags.nounmount ? CL_GATHER_DONT_UNMOUNT : 0, 4384235216Smm flags.forceunmount ? MS_FORCE : 0)) == NULL) { 4385168676Spjd return (-1); 4386226676Spjd } 4387168676Spjd 4388168676Spjd if (changelist_haszonedchild(cl)) { 4389168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4390168676Spjd "child dataset with inherited mountpoint is used " 4391168676Spjd "in a non-global zone")); 4392168676Spjd (void) zfs_error(hdl, EZFS_ZONED, errbuf); 4393307107Smav ret = -1; 4394168676Spjd goto error; 4395168676Spjd } 4396168676Spjd 4397168676Spjd if ((ret = changelist_prefix(cl)) != 0) 4398168676Spjd goto error; 4399168404Spjd } 4400168404Spjd 4401168404Spjd if (ZFS_IS_VOLUME(zhp)) 4402168404Spjd zc.zc_objset_type = DMU_OST_ZVOL; 4403168404Spjd else 4404168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 4405168404Spjd 4406168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4407168404Spjd (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); 4408168404Spjd 4409226705Spjd zc.zc_cookie = flags.recurse ? 1 : 0; 4410226705Spjd if (flags.nounmount) 4411226676Spjd zc.zc_cookie |= 2; 4412168676Spjd 4413185029Spjd if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { 4414168676Spjd /* 4415168676Spjd * if it was recursive, the one that actually failed will 4416168676Spjd * be in zc.zc_name 4417168676Spjd */ 4418168676Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4419185029Spjd "cannot rename '%s'"), zc.zc_name); 4420168404Spjd 4421226705Spjd if (flags.recurse && errno == EEXIST) { 4422168676Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4423168676Spjd "a child dataset already has a snapshot " 4424168676Spjd "with the new name")); 4425185029Spjd (void) zfs_error(hdl, EZFS_EXISTS, errbuf); 4426168676Spjd } else { 4427168676Spjd (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); 4428168676Spjd } 4429168676Spjd 4430168404Spjd /* 4431168404Spjd * On failure, we still want to remount any filesystems that 4432168404Spjd * were previously mounted, so we don't alter the system state. 4433168404Spjd */ 4434268469Sdelphij if (cl != NULL) 4435168676Spjd (void) changelist_postfix(cl); 4436168404Spjd } else { 4437268469Sdelphij if (cl != NULL) { 4438168676Spjd changelist_rename(cl, zfs_get_name(zhp), target); 4439168676Spjd ret = changelist_postfix(cl); 4440168676Spjd } 4441168404Spjd } 4442168404Spjd 4443168404Spjderror: 4444268469Sdelphij if (parentname != NULL) { 4445168676Spjd free(parentname); 4446168676Spjd } 4447268469Sdelphij if (zhrp != NULL) { 4448168676Spjd zfs_close(zhrp); 4449168676Spjd } 4450268469Sdelphij if (cl != NULL) { 4451168676Spjd changelist_free(cl); 4452168676Spjd } 4453168404Spjd return (ret); 4454168404Spjd} 4455168404Spjd 4456219089Spjdnvlist_t * 4457219089Spjdzfs_get_user_props(zfs_handle_t *zhp) 4458168404Spjd{ 4459219089Spjd return (zhp->zfs_user_props); 4460168676Spjd} 4461168676Spjd 4462168404Spjdnvlist_t * 4463219089Spjdzfs_get_recvd_props(zfs_handle_t *zhp) 4464168404Spjd{ 4465219089Spjd if (zhp->zfs_recvd_props == NULL) 4466219089Spjd if (get_recvd_props_ioctl(zhp) != 0) 4467219089Spjd return (NULL); 4468219089Spjd return (zhp->zfs_recvd_props); 4469168404Spjd} 4470168404Spjd 4471168404Spjd/* 4472168404Spjd * This function is used by 'zfs list' to determine the exact set of columns to 4473168404Spjd * display, and their maximum widths. This does two main things: 4474168404Spjd * 4475168404Spjd * - If this is a list of all properties, then expand the list to include 4476168404Spjd * all native properties, and set a flag so that for each dataset we look 4477168404Spjd * for new unique user properties and add them to the list. 4478168404Spjd * 4479168404Spjd * - For non fixed-width properties, keep track of the maximum width seen 4480219089Spjd * so that we can size the column appropriately. If the user has 4481219089Spjd * requested received property values, we also need to compute the width 4482219089Spjd * of the RECEIVED column. 4483168404Spjd */ 4484168404Spjdint 4485259850Sdelphijzfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, 4486259850Sdelphij boolean_t literal) 4487168404Spjd{ 4488168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4489185029Spjd zprop_list_t *entry; 4490185029Spjd zprop_list_t **last, **start; 4491168404Spjd nvlist_t *userprops, *propval; 4492168404Spjd nvpair_t *elem; 4493168404Spjd char *strval; 4494168404Spjd char buf[ZFS_MAXPROPLEN]; 4495168404Spjd 4496185029Spjd if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) 4497168404Spjd return (-1); 4498168404Spjd 4499168404Spjd userprops = zfs_get_user_props(zhp); 4500168404Spjd 4501168404Spjd entry = *plp; 4502168404Spjd if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { 4503168404Spjd /* 4504168404Spjd * Go through and add any user properties as necessary. We 4505168404Spjd * start by incrementing our list pointer to the first 4506168404Spjd * non-native property. 4507168404Spjd */ 4508168404Spjd start = plp; 4509168404Spjd while (*start != NULL) { 4510185029Spjd if ((*start)->pl_prop == ZPROP_INVAL) 4511168404Spjd break; 4512168404Spjd start = &(*start)->pl_next; 4513168404Spjd } 4514168404Spjd 4515168404Spjd elem = NULL; 4516168404Spjd while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { 4517168404Spjd /* 4518168404Spjd * See if we've already found this property in our list. 4519168404Spjd */ 4520168404Spjd for (last = start; *last != NULL; 4521168404Spjd last = &(*last)->pl_next) { 4522168404Spjd if (strcmp((*last)->pl_user_prop, 4523168404Spjd nvpair_name(elem)) == 0) 4524168404Spjd break; 4525168404Spjd } 4526168404Spjd 4527168404Spjd if (*last == NULL) { 4528168404Spjd if ((entry = zfs_alloc(hdl, 4529185029Spjd sizeof (zprop_list_t))) == NULL || 4530168404Spjd ((entry->pl_user_prop = zfs_strdup(hdl, 4531168404Spjd nvpair_name(elem)))) == NULL) { 4532168404Spjd free(entry); 4533168404Spjd return (-1); 4534168404Spjd } 4535168404Spjd 4536185029Spjd entry->pl_prop = ZPROP_INVAL; 4537168404Spjd entry->pl_width = strlen(nvpair_name(elem)); 4538168404Spjd entry->pl_all = B_TRUE; 4539168404Spjd *last = entry; 4540168404Spjd } 4541168404Spjd } 4542168404Spjd } 4543168404Spjd 4544168404Spjd /* 4545168404Spjd * Now go through and check the width of any non-fixed columns 4546168404Spjd */ 4547168404Spjd for (entry = *plp; entry != NULL; entry = entry->pl_next) { 4548259850Sdelphij if (entry->pl_fixed && !literal) 4549168404Spjd continue; 4550168404Spjd 4551185029Spjd if (entry->pl_prop != ZPROP_INVAL) { 4552168404Spjd if (zfs_prop_get(zhp, entry->pl_prop, 4553259850Sdelphij buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { 4554168404Spjd if (strlen(buf) > entry->pl_width) 4555168404Spjd entry->pl_width = strlen(buf); 4556168404Spjd } 4557219089Spjd if (received && zfs_prop_get_recvd(zhp, 4558219089Spjd zfs_prop_to_name(entry->pl_prop), 4559259850Sdelphij buf, sizeof (buf), literal) == 0) 4560219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4561219089Spjd entry->pl_recvd_width = strlen(buf); 4562219089Spjd } else { 4563219089Spjd if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, 4564219089Spjd &propval) == 0) { 4565219089Spjd verify(nvlist_lookup_string(propval, 4566219089Spjd ZPROP_VALUE, &strval) == 0); 4567219089Spjd if (strlen(strval) > entry->pl_width) 4568219089Spjd entry->pl_width = strlen(strval); 4569219089Spjd } 4570219089Spjd if (received && zfs_prop_get_recvd(zhp, 4571219089Spjd entry->pl_user_prop, 4572259850Sdelphij buf, sizeof (buf), literal) == 0) 4573219089Spjd if (strlen(buf) > entry->pl_recvd_width) 4574219089Spjd entry->pl_recvd_width = strlen(buf); 4575168404Spjd } 4576168404Spjd } 4577168404Spjd 4578168404Spjd return (0); 4579168404Spjd} 4580168404Spjd 4581185029Spjdint 4582185029Spjdzfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, 4583209962Smm char *resource, void *export, void *sharetab, 4584209962Smm int sharemax, zfs_share_op_t operation) 4585185029Spjd{ 4586185029Spjd zfs_cmd_t zc = { 0 }; 4587185029Spjd int error; 4588185029Spjd 4589185029Spjd (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4590185029Spjd (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4591209962Smm if (resource) 4592209962Smm (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); 4593185029Spjd zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; 4594185029Spjd zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; 4595185029Spjd zc.zc_share.z_sharetype = operation; 4596185029Spjd zc.zc_share.z_sharemax = sharemax; 4597185029Spjd error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); 4598185029Spjd return (error); 4599185029Spjd} 4600185029Spjd 4601205198Sdelphijvoid 4602205198Sdelphijzfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) 4603205198Sdelphij{ 4604205198Sdelphij nvpair_t *curr; 4605205198Sdelphij 4606205198Sdelphij /* 4607205198Sdelphij * Keep a reference to the props-table against which we prune the 4608205198Sdelphij * properties. 4609205198Sdelphij */ 4610205198Sdelphij zhp->zfs_props_table = props; 4611205198Sdelphij 4612205198Sdelphij curr = nvlist_next_nvpair(zhp->zfs_props, NULL); 4613205198Sdelphij 4614205198Sdelphij while (curr) { 4615205198Sdelphij zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); 4616205198Sdelphij nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); 4617205198Sdelphij 4618206199Sdelphij /* 4619219089Spjd * User properties will result in ZPROP_INVAL, and since we 4620219089Spjd * only know how to prune standard ZFS properties, we always 4621219089Spjd * leave these in the list. This can also happen if we 4622219089Spjd * encounter an unknown DSL property (when running older 4623219089Spjd * software, for example). 4624206199Sdelphij */ 4625206199Sdelphij if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) 4626205198Sdelphij (void) nvlist_remove(zhp->zfs_props, 4627205198Sdelphij nvpair_name(curr), nvpair_type(curr)); 4628205198Sdelphij curr = next; 4629205198Sdelphij } 4630205198Sdelphij} 4631205198Sdelphij 4632277300Ssmh#ifdef illumos 4633209962Smmstatic int 4634209962Smmzfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, 4635209962Smm zfs_smb_acl_op_t cmd, char *resource1, char *resource2) 4636209962Smm{ 4637209962Smm zfs_cmd_t zc = { 0 }; 4638209962Smm nvlist_t *nvlist = NULL; 4639209962Smm int error; 4640209962Smm 4641209962Smm (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); 4642209962Smm (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); 4643209962Smm zc.zc_cookie = (uint64_t)cmd; 4644209962Smm 4645209962Smm if (cmd == ZFS_SMB_ACL_RENAME) { 4646209962Smm if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { 4647209962Smm (void) no_memory(hdl); 4648289497Smav return (0); 4649209962Smm } 4650209962Smm } 4651209962Smm 4652209962Smm switch (cmd) { 4653209962Smm case ZFS_SMB_ACL_ADD: 4654209962Smm case ZFS_SMB_ACL_REMOVE: 4655209962Smm (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); 4656209962Smm break; 4657209962Smm case ZFS_SMB_ACL_RENAME: 4658209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, 4659209962Smm resource1) != 0) { 4660209962Smm (void) no_memory(hdl); 4661209962Smm return (-1); 4662209962Smm } 4663209962Smm if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, 4664209962Smm resource2) != 0) { 4665209962Smm (void) no_memory(hdl); 4666209962Smm return (-1); 4667209962Smm } 4668209962Smm if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { 4669209962Smm nvlist_free(nvlist); 4670209962Smm return (-1); 4671209962Smm } 4672209962Smm break; 4673209962Smm case ZFS_SMB_ACL_PURGE: 4674209962Smm break; 4675209962Smm default: 4676209962Smm return (-1); 4677209962Smm } 4678209962Smm error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); 4679296528Smav nvlist_free(nvlist); 4680209962Smm return (error); 4681209962Smm} 4682209962Smm 4683209962Smmint 4684209962Smmzfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, 4685209962Smm char *path, char *resource) 4686209962Smm{ 4687209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, 4688209962Smm resource, NULL)); 4689209962Smm} 4690209962Smm 4691209962Smmint 4692209962Smmzfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, 4693209962Smm char *path, char *resource) 4694209962Smm{ 4695209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, 4696209962Smm resource, NULL)); 4697209962Smm} 4698209962Smm 4699209962Smmint 4700209962Smmzfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) 4701209962Smm{ 4702209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, 4703209962Smm NULL, NULL)); 4704209962Smm} 4705209962Smm 4706209962Smmint 4707209962Smmzfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, 4708209962Smm char *oldname, char *newname) 4709209962Smm{ 4710209962Smm return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, 4711209962Smm oldname, newname)); 4712209962Smm} 4713277300Ssmh#endif /* illumos */ 4714209962Smm 4715209962Smmint 4716209962Smmzfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, 4717209962Smm zfs_userspace_cb_t func, void *arg) 4718209962Smm{ 4719209962Smm zfs_cmd_t zc = { 0 }; 4720209962Smm zfs_useracct_t buf[100]; 4721240415Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 4722240415Smm int ret; 4723209962Smm 4724228103Smm (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 4725209962Smm 4726209962Smm zc.zc_objset_type = type; 4727209962Smm zc.zc_nvlist_dst = (uintptr_t)buf; 4728209962Smm 4729240415Smm for (;;) { 4730209962Smm zfs_useracct_t *zua = buf; 4731209962Smm 4732209962Smm zc.zc_nvlist_dst_size = sizeof (buf); 4733240415Smm if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { 4734248571Smm char errbuf[1024]; 4735240415Smm 4736240415Smm (void) snprintf(errbuf, sizeof (errbuf), 4737240415Smm dgettext(TEXT_DOMAIN, 4738240415Smm "cannot get used/quota for %s"), zc.zc_name); 4739240415Smm return (zfs_standard_error_fmt(hdl, errno, errbuf)); 4740240415Smm } 4741240415Smm if (zc.zc_nvlist_dst_size == 0) 4742209962Smm break; 4743209962Smm 4744209962Smm while (zc.zc_nvlist_dst_size > 0) { 4745240415Smm if ((ret = func(arg, zua->zu_domain, zua->zu_rid, 4746240415Smm zua->zu_space)) != 0) 4747240415Smm return (ret); 4748209962Smm zua++; 4749209962Smm zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); 4750209962Smm } 4751209962Smm } 4752209962Smm 4753240415Smm return (0); 4754209962Smm} 4755209962Smm 4756248571Smmstruct holdarg { 4757248571Smm nvlist_t *nvl; 4758248571Smm const char *snapname; 4759248571Smm const char *tag; 4760248571Smm boolean_t recursive; 4761252219Sdelphij int error; 4762248571Smm}; 4763248571Smm 4764248571Smmstatic int 4765248571Smmzfs_hold_one(zfs_handle_t *zhp, void *arg) 4766248571Smm{ 4767248571Smm struct holdarg *ha = arg; 4768307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 4769248571Smm int rv = 0; 4770248571Smm 4771248571Smm (void) snprintf(name, sizeof (name), 4772248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4773248571Smm 4774251646Sdelphij if (lzc_exists(name)) 4775248571Smm fnvlist_add_string(ha->nvl, name, ha->tag); 4776248571Smm 4777248571Smm if (ha->recursive) 4778248571Smm rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); 4779248571Smm zfs_close(zhp); 4780248571Smm return (rv); 4781248571Smm} 4782248571Smm 4783219089Spjdint 4784219089Spjdzfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, 4785251646Sdelphij boolean_t recursive, int cleanup_fd) 4786219089Spjd{ 4787248571Smm int ret; 4788248571Smm struct holdarg ha; 4789219089Spjd 4790248571Smm ha.nvl = fnvlist_alloc(); 4791248571Smm ha.snapname = snapname; 4792248571Smm ha.tag = tag; 4793248571Smm ha.recursive = recursive; 4794248571Smm (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); 4795249357Smm 4796251646Sdelphij if (nvlist_empty(ha.nvl)) { 4797251646Sdelphij char errbuf[1024]; 4798251646Sdelphij 4799249357Smm fnvlist_free(ha.nvl); 4800249357Smm ret = ENOENT; 4801251646Sdelphij (void) snprintf(errbuf, sizeof (errbuf), 4802251646Sdelphij dgettext(TEXT_DOMAIN, 4803251646Sdelphij "cannot hold snapshot '%s@%s'"), 4804251646Sdelphij zhp->zfs_name, snapname); 4805251646Sdelphij (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); 4806249357Smm return (ret); 4807249357Smm } 4808249357Smm 4809251646Sdelphij ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); 4810248571Smm fnvlist_free(ha.nvl); 4811219089Spjd 4812251646Sdelphij return (ret); 4813251646Sdelphij} 4814251646Sdelphij 4815251646Sdelphijint 4816251646Sdelphijzfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) 4817251646Sdelphij{ 4818251646Sdelphij int ret; 4819251646Sdelphij nvlist_t *errors; 4820251646Sdelphij libzfs_handle_t *hdl = zhp->zfs_hdl; 4821251646Sdelphij char errbuf[1024]; 4822251646Sdelphij nvpair_t *elem; 4823251646Sdelphij 4824251646Sdelphij errors = NULL; 4825251646Sdelphij ret = lzc_hold(holds, cleanup_fd, &errors); 4826251646Sdelphij 4827251646Sdelphij if (ret == 0) { 4828251646Sdelphij /* There may be errors even in the success case. */ 4829251646Sdelphij fnvlist_free(errors); 4830248571Smm return (0); 4831251646Sdelphij } 4832219089Spjd 4833251646Sdelphij if (nvlist_empty(errors)) { 4834248571Smm /* no hold-specific errors */ 4835248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4836248571Smm dgettext(TEXT_DOMAIN, "cannot hold")); 4837248571Smm switch (ret) { 4838248571Smm case ENOTSUP: 4839248571Smm zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4840248571Smm "pool must be upgraded")); 4841248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4842248571Smm break; 4843248571Smm case EINVAL: 4844248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4845248571Smm break; 4846248571Smm default: 4847248571Smm (void) zfs_standard_error(hdl, ret, errbuf); 4848248571Smm } 4849248571Smm } 4850219089Spjd 4851248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4852248571Smm elem != NULL; 4853248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4854248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4855248571Smm dgettext(TEXT_DOMAIN, 4856248571Smm "cannot hold snapshot '%s'"), nvpair_name(elem)); 4857248571Smm switch (fnvpair_value_int32(elem)) { 4858219089Spjd case E2BIG: 4859219089Spjd /* 4860219089Spjd * Temporary tags wind up having the ds object id 4861219089Spjd * prepended. So even if we passed the length check 4862219089Spjd * above, it's still possible for the tag to wind 4863219089Spjd * up being slightly too long. 4864219089Spjd */ 4865248571Smm (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); 4866248571Smm break; 4867219089Spjd case EINVAL: 4868248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4869248571Smm break; 4870219089Spjd case EEXIST: 4871248571Smm (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); 4872248571Smm break; 4873219089Spjd default: 4874248571Smm (void) zfs_standard_error(hdl, 4875248571Smm fnvpair_value_int32(elem), errbuf); 4876219089Spjd } 4877219089Spjd } 4878219089Spjd 4879248571Smm fnvlist_free(errors); 4880248571Smm return (ret); 4881219089Spjd} 4882219089Spjd 4883248571Smmstatic int 4884248571Smmzfs_release_one(zfs_handle_t *zhp, void *arg) 4885248571Smm{ 4886248571Smm struct holdarg *ha = arg; 4887307108Smav char name[ZFS_MAX_DATASET_NAME_LEN]; 4888248571Smm int rv = 0; 4889252219Sdelphij nvlist_t *existing_holds; 4890248571Smm 4891248571Smm (void) snprintf(name, sizeof (name), 4892248571Smm "%s@%s", zhp->zfs_name, ha->snapname); 4893248571Smm 4894252219Sdelphij if (lzc_get_holds(name, &existing_holds) != 0) { 4895252219Sdelphij ha->error = ENOENT; 4896252219Sdelphij } else if (!nvlist_exists(existing_holds, ha->tag)) { 4897252219Sdelphij ha->error = ESRCH; 4898252219Sdelphij } else { 4899252219Sdelphij nvlist_t *torelease = fnvlist_alloc(); 4900252219Sdelphij fnvlist_add_boolean(torelease, ha->tag); 4901252219Sdelphij fnvlist_add_nvlist(ha->nvl, name, torelease); 4902252219Sdelphij fnvlist_free(torelease); 4903248571Smm } 4904248571Smm 4905248571Smm if (ha->recursive) 4906248571Smm rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); 4907248571Smm zfs_close(zhp); 4908248571Smm return (rv); 4909248571Smm} 4910248571Smm 4911219089Spjdint 4912219089Spjdzfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, 4913219089Spjd boolean_t recursive) 4914219089Spjd{ 4915248571Smm int ret; 4916248571Smm struct holdarg ha; 4917251646Sdelphij nvlist_t *errors = NULL; 4918248571Smm nvpair_t *elem; 4919219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4920249357Smm char errbuf[1024]; 4921219089Spjd 4922248571Smm ha.nvl = fnvlist_alloc(); 4923248571Smm ha.snapname = snapname; 4924248571Smm ha.tag = tag; 4925248571Smm ha.recursive = recursive; 4926252219Sdelphij ha.error = 0; 4927248571Smm (void) zfs_release_one(zfs_handle_dup(zhp), &ha); 4928249357Smm 4929251646Sdelphij if (nvlist_empty(ha.nvl)) { 4930249357Smm fnvlist_free(ha.nvl); 4931252219Sdelphij ret = ha.error; 4932249357Smm (void) snprintf(errbuf, sizeof (errbuf), 4933249357Smm dgettext(TEXT_DOMAIN, 4934249357Smm "cannot release hold from snapshot '%s@%s'"), 4935249357Smm zhp->zfs_name, snapname); 4936252219Sdelphij if (ret == ESRCH) { 4937252219Sdelphij (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4938252219Sdelphij } else { 4939252219Sdelphij (void) zfs_standard_error(hdl, ret, errbuf); 4940252219Sdelphij } 4941249357Smm return (ret); 4942249357Smm } 4943249357Smm 4944248571Smm ret = lzc_release(ha.nvl, &errors); 4945248571Smm fnvlist_free(ha.nvl); 4946219089Spjd 4947251646Sdelphij if (ret == 0) { 4948251646Sdelphij /* There may be errors even in the success case. */ 4949251646Sdelphij fnvlist_free(errors); 4950248571Smm return (0); 4951251646Sdelphij } 4952219089Spjd 4953251646Sdelphij if (nvlist_empty(errors)) { 4954248571Smm /* no hold-specific errors */ 4955219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 4956248571Smm "cannot release")); 4957219089Spjd switch (errno) { 4958219089Spjd case ENOTSUP: 4959219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4960219089Spjd "pool must be upgraded")); 4961248571Smm (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 4962248571Smm break; 4963248571Smm default: 4964248571Smm (void) zfs_standard_error_fmt(hdl, errno, errbuf); 4965248571Smm } 4966248571Smm } 4967248571Smm 4968248571Smm for (elem = nvlist_next_nvpair(errors, NULL); 4969248571Smm elem != NULL; 4970248571Smm elem = nvlist_next_nvpair(errors, elem)) { 4971248571Smm (void) snprintf(errbuf, sizeof (errbuf), 4972248571Smm dgettext(TEXT_DOMAIN, 4973248571Smm "cannot release hold from snapshot '%s'"), 4974248571Smm nvpair_name(elem)); 4975248571Smm switch (fnvpair_value_int32(elem)) { 4976248571Smm case ESRCH: 4977248571Smm (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); 4978248571Smm break; 4979219089Spjd case EINVAL: 4980248571Smm (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); 4981248571Smm break; 4982219089Spjd default: 4983248571Smm (void) zfs_standard_error_fmt(hdl, 4984248571Smm fnvpair_value_int32(elem), errbuf); 4985219089Spjd } 4986219089Spjd } 4987219089Spjd 4988248571Smm fnvlist_free(errors); 4989248571Smm return (ret); 4990219089Spjd} 4991219089Spjd 4992219089Spjdint 4993219089Spjdzfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) 4994219089Spjd{ 4995219089Spjd zfs_cmd_t zc = { 0 }; 4996219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 4997219089Spjd int nvsz = 2048; 4998219089Spjd void *nvbuf; 4999219089Spjd int err = 0; 5000248571Smm char errbuf[1024]; 5001219089Spjd 5002219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 5003219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 5004219089Spjd 5005219089Spjdtryagain: 5006219089Spjd 5007219089Spjd nvbuf = malloc(nvsz); 5008219089Spjd if (nvbuf == NULL) { 5009219089Spjd err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); 5010219089Spjd goto out; 5011219089Spjd } 5012219089Spjd 5013219089Spjd zc.zc_nvlist_dst_size = nvsz; 5014219089Spjd zc.zc_nvlist_dst = (uintptr_t)nvbuf; 5015219089Spjd 5016307108Smav (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 5017219089Spjd 5018230514Smm if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { 5019219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 5020219089Spjd dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), 5021219089Spjd zc.zc_name); 5022219089Spjd switch (errno) { 5023219089Spjd case ENOMEM: 5024219089Spjd free(nvbuf); 5025219089Spjd nvsz = zc.zc_nvlist_dst_size; 5026219089Spjd goto tryagain; 5027219089Spjd 5028219089Spjd case ENOTSUP: 5029219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 5030219089Spjd "pool must be upgraded")); 5031219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 5032219089Spjd break; 5033219089Spjd case EINVAL: 5034219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 5035219089Spjd break; 5036219089Spjd case ENOENT: 5037219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 5038219089Spjd break; 5039219089Spjd default: 5040219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 5041219089Spjd break; 5042219089Spjd } 5043219089Spjd } else { 5044219089Spjd /* success */ 5045219089Spjd int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); 5046219089Spjd if (rc) { 5047219089Spjd (void) snprintf(errbuf, sizeof (errbuf), dgettext( 5048219089Spjd TEXT_DOMAIN, "cannot get permissions on '%s'"), 5049219089Spjd zc.zc_name); 5050219089Spjd err = zfs_standard_error_fmt(hdl, rc, errbuf); 5051219089Spjd } 5052219089Spjd } 5053219089Spjd 5054219089Spjd free(nvbuf); 5055219089Spjdout: 5056219089Spjd return (err); 5057219089Spjd} 5058219089Spjd 5059219089Spjdint 5060219089Spjdzfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) 5061219089Spjd{ 5062219089Spjd zfs_cmd_t zc = { 0 }; 5063219089Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 5064219089Spjd char *nvbuf; 5065248571Smm char errbuf[1024]; 5066219089Spjd size_t nvsz; 5067219089Spjd int err; 5068219089Spjd 5069219089Spjd assert(zhp->zfs_type == ZFS_TYPE_VOLUME || 5070219089Spjd zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 5071219089Spjd 5072219089Spjd err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); 5073219089Spjd assert(err == 0); 5074219089Spjd 5075219089Spjd nvbuf = malloc(nvsz); 5076219089Spjd 5077219089Spjd err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); 5078219089Spjd assert(err == 0); 5079219089Spjd 5080219089Spjd zc.zc_nvlist_src_size = nvsz; 5081219089Spjd zc.zc_nvlist_src = (uintptr_t)nvbuf; 5082219089Spjd zc.zc_perm_action = un; 5083219089Spjd 5084219089Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 5085219089Spjd 5086219089Spjd if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { 5087219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 5088219089Spjd dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), 5089219089Spjd zc.zc_name); 5090219089Spjd switch (errno) { 5091219089Spjd case ENOTSUP: 5092219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 5093219089Spjd "pool must be upgraded")); 5094219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 5095219089Spjd break; 5096219089Spjd case EINVAL: 5097219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 5098219089Spjd break; 5099219089Spjd case ENOENT: 5100219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 5101219089Spjd break; 5102219089Spjd default: 5103219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 5104219089Spjd break; 5105219089Spjd } 5106219089Spjd } 5107219089Spjd 5108219089Spjd free(nvbuf); 5109219089Spjd 5110219089Spjd return (err); 5111219089Spjd} 5112219089Spjd 5113219089Spjdint 5114219089Spjdzfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) 5115219089Spjd{ 5116248571Smm int err; 5117248571Smm char errbuf[1024]; 5118219089Spjd 5119248571Smm err = lzc_get_holds(zhp->zfs_name, nvl); 5120219089Spjd 5121248571Smm if (err != 0) { 5122248571Smm libzfs_handle_t *hdl = zhp->zfs_hdl; 5123219089Spjd 5124219089Spjd (void) snprintf(errbuf, sizeof (errbuf), 5125219089Spjd dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), 5126248571Smm zhp->zfs_name); 5127248571Smm switch (err) { 5128219089Spjd case ENOTSUP: 5129219089Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 5130219089Spjd "pool must be upgraded")); 5131219089Spjd err = zfs_error(hdl, EZFS_BADVERSION, errbuf); 5132219089Spjd break; 5133219089Spjd case EINVAL: 5134219089Spjd err = zfs_error(hdl, EZFS_BADTYPE, errbuf); 5135219089Spjd break; 5136219089Spjd case ENOENT: 5137219089Spjd err = zfs_error(hdl, EZFS_NOENT, errbuf); 5138219089Spjd break; 5139219089Spjd default: 5140219089Spjd err = zfs_standard_error_fmt(hdl, errno, errbuf); 5141219089Spjd break; 5142219089Spjd } 5143219089Spjd } 5144219089Spjd 5145219089Spjd return (err); 5146219089Spjd} 5147219089Spjd 5148251629Sdelphij/* 5149251629Sdelphij * Convert the zvol's volume size to an appropriate reservation. 5150251629Sdelphij * Note: If this routine is updated, it is necessary to update the ZFS test 5151251629Sdelphij * suite's shell version in reservation.kshlib. 5152251629Sdelphij */ 5153219089Spjduint64_t 5154219089Spjdzvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) 5155219089Spjd{ 5156219089Spjd uint64_t numdb; 5157219089Spjd uint64_t nblocks, volblocksize; 5158219089Spjd int ncopies; 5159219089Spjd char *strval; 5160219089Spjd 5161219089Spjd if (nvlist_lookup_string(props, 5162219089Spjd zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) 5163219089Spjd ncopies = atoi(strval); 5164219089Spjd else 5165219089Spjd ncopies = 1; 5166219089Spjd if (nvlist_lookup_uint64(props, 5167219089Spjd zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 5168219089Spjd &volblocksize) != 0) 5169219089Spjd volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 5170219089Spjd nblocks = volsize/volblocksize; 5171219089Spjd /* start with metadnode L0-L6 */ 5172219089Spjd numdb = 7; 5173219089Spjd /* calculate number of indirects */ 5174219089Spjd while (nblocks > 1) { 5175219089Spjd nblocks += DNODES_PER_LEVEL - 1; 5176219089Spjd nblocks /= DNODES_PER_LEVEL; 5177219089Spjd numdb += nblocks; 5178219089Spjd } 5179219089Spjd numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); 5180219089Spjd volsize *= ncopies; 5181219089Spjd /* 5182219089Spjd * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't 5183219089Spjd * compressed, but in practice they compress down to about 5184219089Spjd * 1100 bytes 5185219089Spjd */ 5186219089Spjd numdb *= 1ULL << DN_MAX_INDBLKSHIFT; 5187219089Spjd volsize += numdb; 5188219089Spjd return (volsize); 5189219089Spjd} 5190219089Spjd 5191168404Spjd/* 5192168404Spjd * Attach/detach the given filesystem to/from the given jail. 5193168404Spjd */ 5194168404Spjdint 5195168404Spjdzfs_jail(zfs_handle_t *zhp, int jailid, int attach) 5196168404Spjd{ 5197168404Spjd libzfs_handle_t *hdl = zhp->zfs_hdl; 5198168404Spjd zfs_cmd_t zc = { 0 }; 5199168404Spjd char errbuf[1024]; 5200224525Smm unsigned long cmd; 5201224525Smm int ret; 5202168404Spjd 5203168404Spjd if (attach) { 5204168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 5205168404Spjd dgettext(TEXT_DOMAIN, "cannot jail '%s'"), zhp->zfs_name); 5206168404Spjd } else { 5207168404Spjd (void) snprintf(errbuf, sizeof (errbuf), 5208249547Spjd dgettext(TEXT_DOMAIN, "cannot unjail '%s'"), zhp->zfs_name); 5209168404Spjd } 5210168404Spjd 5211168404Spjd switch (zhp->zfs_type) { 5212168404Spjd case ZFS_TYPE_VOLUME: 5213168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 5214168404Spjd "volumes can not be jailed")); 5215168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 5216168404Spjd case ZFS_TYPE_SNAPSHOT: 5217168404Spjd zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 5218168404Spjd "snapshots can not be jailed")); 5219168404Spjd return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); 5220168404Spjd } 5221168404Spjd assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM); 5222168404Spjd 5223168404Spjd (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); 5224168404Spjd zc.zc_objset_type = DMU_OST_ZFS; 5225168404Spjd zc.zc_jailid = jailid; 5226168404Spjd 5227168404Spjd cmd = attach ? ZFS_IOC_JAIL : ZFS_IOC_UNJAIL; 5228168404Spjd if ((ret = ioctl(hdl->libzfs_fd, cmd, &zc)) != 0) 5229168404Spjd zfs_standard_error(hdl, errno, errbuf); 5230168404Spjd 5231168404Spjd return (ret); 5232168404Spjd} 5233