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 */ 21236884Smm 22168404Spjd/* 23219089Spjd * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24307046Smav * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. 25247540Smm * Copyright 2013 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 26268116Sdelphij * Copyright 2014 Xin Li <delphij@FreeBSD.org>. All rights reserved. 27294817Smav * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved. 28284303Savg * Copyright 2015 Nexenta Systems, Inc. All rights reserved. 29307048Smav * Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved. 30325538Savg * Copyright (c) 2011, 2017 by Delphix. All rights reserved. 31246586Sdelphij * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 32251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 33296519Smav * Copyright (c) 2014 Integros [integros.com] 34332524Smav * Copyright 2016 Toomas Soome <tsoome@me.com> 35321577Smav * Copyright 2017 RackTop Systems. 36359722Sfreqlabs * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved. 37359722Sfreqlabs * Copyright (c) 2019 Datto Inc. 38168404Spjd */ 39168404Spjd 40248571Smm/* 41248571Smm * ZFS ioctls. 42248571Smm * 43248571Smm * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage 44248571Smm * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. 45248571Smm * 46248571Smm * There are two ways that we handle ioctls: the legacy way where almost 47248571Smm * all of the logic is in the ioctl callback, and the new way where most 48248571Smm * of the marshalling is handled in the common entry point, zfsdev_ioctl(). 49248571Smm * 50248571Smm * Non-legacy ioctls should be registered by calling 51248571Smm * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked 52248571Smm * from userland by lzc_ioctl(). 53248571Smm * 54248571Smm * The registration arguments are as follows: 55248571Smm * 56248571Smm * const char *name 57248571Smm * The name of the ioctl. This is used for history logging. If the 58248571Smm * ioctl returns successfully (the callback returns 0), and allow_log 59248571Smm * is true, then a history log entry will be recorded with the input & 60248571Smm * output nvlists. The log entry can be printed with "zpool history -i". 61248571Smm * 62248571Smm * zfs_ioc_t ioc 63248571Smm * The ioctl request number, which userland will pass to ioctl(2). 64248571Smm * The ioctl numbers can change from release to release, because 65248571Smm * the caller (libzfs) must be matched to the kernel. 66248571Smm * 67248571Smm * zfs_secpolicy_func_t *secpolicy 68248571Smm * This function will be called before the zfs_ioc_func_t, to 69248571Smm * determine if this operation is permitted. It should return EPERM 70248571Smm * on failure, and 0 on success. Checks include determining if the 71248571Smm * dataset is visible in this zone, and if the user has either all 72248571Smm * zfs privileges in the zone (SYS_MOUNT), or has been granted permission 73248571Smm * to do this operation on this dataset with "zfs allow". 74248571Smm * 75248571Smm * zfs_ioc_namecheck_t namecheck 76248571Smm * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool 77248571Smm * name, a dataset name, or nothing. If the name is not well-formed, 78248571Smm * the ioctl will fail and the callback will not be called. 79248571Smm * Therefore, the callback can assume that the name is well-formed 80248571Smm * (e.g. is null-terminated, doesn't have more than one '@' character, 81248571Smm * doesn't have invalid characters). 82248571Smm * 83248571Smm * zfs_ioc_poolcheck_t pool_check 84248571Smm * This specifies requirements on the pool state. If the pool does 85248571Smm * not meet them (is suspended or is readonly), the ioctl will fail 86248571Smm * and the callback will not be called. If any checks are specified 87248571Smm * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. 88248571Smm * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | 89248571Smm * POOL_CHECK_READONLY). 90248571Smm * 91248571Smm * boolean_t smush_outnvlist 92248571Smm * If smush_outnvlist is true, then the output is presumed to be a 93248571Smm * list of errors, and it will be "smushed" down to fit into the 94248571Smm * caller's buffer, by removing some entries and replacing them with a 95248571Smm * single "N_MORE_ERRORS" entry indicating how many were removed. See 96248571Smm * nvlist_smush() for details. If smush_outnvlist is false, and the 97248571Smm * outnvlist does not fit into the userland-provided buffer, then the 98248571Smm * ioctl will fail with ENOMEM. 99248571Smm * 100248571Smm * zfs_ioc_func_t *func 101248571Smm * The callback function that will perform the operation. 102248571Smm * 103248571Smm * The callback should return 0 on success, or an error number on 104248571Smm * failure. If the function fails, the userland ioctl will return -1, 105248571Smm * and errno will be set to the callback's return value. The callback 106248571Smm * will be called with the following arguments: 107248571Smm * 108248571Smm * const char *name 109248571Smm * The name of the pool or dataset to operate on, from 110248571Smm * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the 111248571Smm * expected type (pool, dataset, or none). 112248571Smm * 113248571Smm * nvlist_t *innvl 114248571Smm * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or 115248571Smm * NULL if no input nvlist was provided. Changes to this nvlist are 116248571Smm * ignored. If the input nvlist could not be deserialized, the 117248571Smm * ioctl will fail and the callback will not be called. 118248571Smm * 119248571Smm * nvlist_t *outnvl 120248571Smm * The output nvlist, initially empty. The callback can fill it in, 121248571Smm * and it will be returned to userland by serializing it into 122248571Smm * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization 123248571Smm * fails (e.g. because the caller didn't supply a large enough 124248571Smm * buffer), then the overall ioctl will fail. See the 125248571Smm * 'smush_nvlist' argument above for additional behaviors. 126248571Smm * 127248571Smm * There are two typical uses of the output nvlist: 128248571Smm * - To return state, e.g. property values. In this case, 129248571Smm * smush_outnvlist should be false. If the buffer was not large 130248571Smm * enough, the caller will reallocate a larger buffer and try 131248571Smm * the ioctl again. 132248571Smm * 133248571Smm * - To return multiple errors from an ioctl which makes on-disk 134248571Smm * changes. In this case, smush_outnvlist should be true. 135248571Smm * Ioctls which make on-disk modifications should generally not 136248571Smm * use the outnvl if they succeed, because the caller can not 137248571Smm * distinguish between the operation failing, and 138248571Smm * deserialization failing. 139248571Smm */ 140286223Ssmh#ifdef __FreeBSD__ 141286223Ssmh#include "opt_kstack_pages.h" 142286223Ssmh#endif 143248571Smm 144168962Spjd#include <sys/types.h> 145168404Spjd#include <sys/param.h> 146168404Spjd#include <sys/systm.h> 147168404Spjd#include <sys/conf.h> 148168404Spjd#include <sys/kernel.h> 149168404Spjd#include <sys/lock.h> 150168404Spjd#include <sys/malloc.h> 151168404Spjd#include <sys/mutex.h> 152168404Spjd#include <sys/proc.h> 153168404Spjd#include <sys/errno.h> 154168404Spjd#include <sys/uio.h> 155168962Spjd#include <sys/buf.h> 156168404Spjd#include <sys/file.h> 157168404Spjd#include <sys/kmem.h> 158168404Spjd#include <sys/conf.h> 159168404Spjd#include <sys/cmn_err.h> 160168404Spjd#include <sys/stat.h> 161168404Spjd#include <sys/zfs_ioctl.h> 162209962Smm#include <sys/zfs_vfsops.h> 163185029Spjd#include <sys/zfs_znode.h> 164168404Spjd#include <sys/zap.h> 165168404Spjd#include <sys/spa.h> 166168404Spjd#include <sys/spa_impl.h> 167168404Spjd#include <sys/vdev.h> 168168404Spjd#include <sys/dmu.h> 169168404Spjd#include <sys/dsl_dir.h> 170168404Spjd#include <sys/dsl_dataset.h> 171168404Spjd#include <sys/dsl_prop.h> 172185029Spjd#include <sys/dsl_deleg.h> 173185029Spjd#include <sys/dmu_objset.h> 174235222Smm#include <sys/dmu_impl.h> 175248571Smm#include <sys/dmu_tx.h> 176168962Spjd#include <sys/sunddi.h> 177168962Spjd#include <sys/policy.h> 178168962Spjd#include <sys/zone.h> 179168404Spjd#include <sys/nvpair.h> 180168404Spjd#include <sys/mount.h> 181168404Spjd#include <sys/taskqueue.h> 182168404Spjd#include <sys/sdt.h> 183168404Spjd#include <sys/varargs.h> 184168404Spjd#include <sys/fs/zfs.h> 185168404Spjd#include <sys/zfs_ctldir.h> 186185029Spjd#include <sys/zfs_dir.h> 187219089Spjd#include <sys/zfs_onexit.h> 188168404Spjd#include <sys/zvol.h> 189219089Spjd#include <sys/dsl_scan.h> 190185029Spjd#include <sys/dmu_objset.h> 191248571Smm#include <sys/dmu_send.h> 192248571Smm#include <sys/dsl_destroy.h> 193260183Sdelphij#include <sys/dsl_bookmark.h> 194248571Smm#include <sys/dsl_userhold.h> 195246586Sdelphij#include <sys/zfeature.h> 196325534Savg#include <sys/zcp.h> 197289422Smav#include <sys/zio_checksum.h> 198332525Smav#include <sys/vdev_removal.h> 199339111Smav#include <sys/vdev_impl.h> 200339111Smav#include <sys/vdev_initialize.h> 201168404Spjd 202168404Spjd#include "zfs_namecheck.h" 203168404Spjd#include "zfs_prop.h" 204185029Spjd#include "zfs_deleg.h" 205219089Spjd#include "zfs_comutil.h" 206219089Spjd#include "zfs_ioctl_compat.h" 207168404Spjd 208325534Savg#include "lua.h" 209325534Savg#include "lauxlib.h" 210325534Savg 211168404Spjdstatic struct cdev *zfsdev; 212168404Spjd 213168404Spjdextern void zfs_init(void); 214168404Spjdextern void zfs_fini(void); 215168404Spjd 216248571Smmuint_t zfs_fsyncer_key; 217248571Smmextern uint_t rrw_tsd_key; 218248571Smmstatic uint_t zfs_allow_log_key; 219294329Sasomersextern uint_t zfs_geom_probe_vdev_key; 220168404Spjd 221248571Smmtypedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); 222248571Smmtypedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); 223248571Smmtypedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); 224248571Smm 225209962Smmtypedef enum { 226209962Smm NO_NAME, 227209962Smm POOL_NAME, 228353759Savg DATASET_NAME, 229353759Savg ENTITY_NAME 230209962Smm} zfs_ioc_namecheck_t; 231209962Smm 232246688Smmtypedef enum { 233246688Smm POOL_CHECK_NONE = 1 << 0, 234246688Smm POOL_CHECK_SUSPENDED = 1 << 1, 235248571Smm POOL_CHECK_READONLY = 1 << 2, 236246688Smm} zfs_ioc_poolcheck_t; 237246688Smm 238168404Spjdtypedef struct zfs_ioc_vec { 239248571Smm zfs_ioc_legacy_func_t *zvec_legacy_func; 240168404Spjd zfs_ioc_func_t *zvec_func; 241168404Spjd zfs_secpolicy_func_t *zvec_secpolicy; 242209962Smm zfs_ioc_namecheck_t zvec_namecheck; 243248571Smm boolean_t zvec_allow_log; 244246688Smm zfs_ioc_poolcheck_t zvec_pool_check; 245248571Smm boolean_t zvec_smush_outnvlist; 246248571Smm const char *zvec_name; 247168404Spjd} zfs_ioc_vec_t; 248168404Spjd 249209962Smm/* This array is indexed by zfs_userquota_prop_t */ 250209962Smmstatic const char *userquota_perms[] = { 251209962Smm ZFS_DELEG_PERM_USERUSED, 252209962Smm ZFS_DELEG_PERM_USERQUOTA, 253209962Smm ZFS_DELEG_PERM_GROUPUSED, 254209962Smm ZFS_DELEG_PERM_GROUPQUOTA, 255209962Smm}; 256209962Smm 257209962Smmstatic int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); 258219089Spjdstatic int zfs_check_settable(const char *name, nvpair_t *property, 259219089Spjd cred_t *cr); 260219089Spjdstatic int zfs_check_clearable(char *dataset, nvlist_t *props, 261219089Spjd nvlist_t **errors); 262185029Spjdstatic int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, 263185029Spjd boolean_t *); 264248571Smmint zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); 265248571Smmstatic int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); 266219089Spjd 267219089Spjdstatic void zfsdev_close(void *data); 268185029Spjd 269259813Sdelphijstatic int zfs_prop_activate_feature(spa_t *spa, spa_feature_t feature); 270246586Sdelphij 271168404Spjd/* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 272168404Spjdvoid 273168404Spjd__dprintf(const char *file, const char *func, int line, const char *fmt, ...) 274168404Spjd{ 275168404Spjd const char *newfile; 276219089Spjd char buf[512]; 277168404Spjd va_list adx; 278168404Spjd 279168404Spjd /* 280168404Spjd * Get rid of annoying "../common/" prefix to filename. 281168404Spjd */ 282168404Spjd newfile = strrchr(file, '/'); 283168404Spjd if (newfile != NULL) { 284168404Spjd newfile = newfile + 1; /* Get rid of leading / */ 285168404Spjd } else { 286168404Spjd newfile = file; 287168404Spjd } 288168404Spjd 289168404Spjd va_start(adx, fmt); 290168404Spjd (void) vsnprintf(buf, sizeof (buf), fmt, adx); 291168404Spjd va_end(adx); 292168404Spjd 293168404Spjd /* 294168404Spjd * To get this data, use the zfs-dprintf probe as so: 295168404Spjd * dtrace -q -n 'zfs-dprintf \ 296168404Spjd * /stringof(arg0) == "dbuf.c"/ \ 297168404Spjd * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 298168404Spjd * arg0 = file name 299168404Spjd * arg1 = function name 300168404Spjd * arg2 = line number 301168404Spjd * arg3 = message 302168404Spjd */ 303168404Spjd DTRACE_PROBE4(zfs__dprintf, 304168404Spjd char *, newfile, char *, func, int, line, char *, buf); 305168404Spjd} 306168404Spjd 307185029Spjdstatic void 308185029Spjdhistory_str_free(char *buf) 309185029Spjd{ 310185029Spjd kmem_free(buf, HIS_MAX_RECORD_LEN); 311185029Spjd} 312185029Spjd 313185029Spjdstatic char * 314185029Spjdhistory_str_get(zfs_cmd_t *zc) 315185029Spjd{ 316185029Spjd char *buf; 317185029Spjd 318185029Spjd if (zc->zc_history == 0) 319185029Spjd return (NULL); 320185029Spjd 321185029Spjd buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); 322185029Spjd if (copyinstr((void *)(uintptr_t)zc->zc_history, 323185029Spjd buf, HIS_MAX_RECORD_LEN, NULL) != 0) { 324185029Spjd history_str_free(buf); 325185029Spjd return (NULL); 326185029Spjd } 327185029Spjd 328185029Spjd buf[HIS_MAX_RECORD_LEN -1] = '\0'; 329185029Spjd 330185029Spjd return (buf); 331185029Spjd} 332185029Spjd 333168404Spjd/* 334185029Spjd * Check to see if the named dataset is currently defined as bootable 335185029Spjd */ 336185029Spjdstatic boolean_t 337185029Spjdzfs_is_bootfs(const char *name) 338185029Spjd{ 339219089Spjd objset_t *os; 340185029Spjd 341219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 342219089Spjd boolean_t ret; 343219089Spjd ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); 344219089Spjd dmu_objset_rele(os, FTAG); 345219089Spjd return (ret); 346185029Spjd } 347219089Spjd return (B_FALSE); 348185029Spjd} 349185029Spjd 350185029Spjd/* 351251631Sdelphij * Return non-zero if the spa version is less than requested version. 352185029Spjd */ 353185029Spjdstatic int 354185029Spjdzfs_earlier_version(const char *name, int version) 355185029Spjd{ 356185029Spjd spa_t *spa; 357185029Spjd 358185029Spjd if (spa_open(name, &spa, FTAG) == 0) { 359185029Spjd if (spa_version(spa) < version) { 360185029Spjd spa_close(spa, FTAG); 361185029Spjd return (1); 362185029Spjd } 363185029Spjd spa_close(spa, FTAG); 364185029Spjd } 365185029Spjd return (0); 366185029Spjd} 367185029Spjd 368185029Spjd/* 369185029Spjd * Return TRUE if the ZPL version is less than requested version. 370185029Spjd */ 371185029Spjdstatic boolean_t 372185029Spjdzpl_earlier_version(const char *name, int version) 373185029Spjd{ 374185029Spjd objset_t *os; 375185029Spjd boolean_t rc = B_TRUE; 376185029Spjd 377219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 378185029Spjd uint64_t zplversion; 379185029Spjd 380219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 381219089Spjd dmu_objset_rele(os, FTAG); 382219089Spjd return (B_TRUE); 383219089Spjd } 384219089Spjd /* XXX reading from non-owned objset */ 385185029Spjd if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) 386185029Spjd rc = zplversion < version; 387219089Spjd dmu_objset_rele(os, FTAG); 388185029Spjd } 389185029Spjd return (rc); 390185029Spjd} 391185029Spjd 392185029Spjdstatic void 393185029Spjdzfs_log_history(zfs_cmd_t *zc) 394185029Spjd{ 395185029Spjd spa_t *spa; 396185029Spjd char *buf; 397185029Spjd 398185029Spjd if ((buf = history_str_get(zc)) == NULL) 399185029Spjd return; 400185029Spjd 401185029Spjd if (spa_open(zc->zc_name, &spa, FTAG) == 0) { 402185029Spjd if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) 403248571Smm (void) spa_history_log(spa, buf); 404185029Spjd spa_close(spa, FTAG); 405185029Spjd } 406185029Spjd history_str_free(buf); 407185029Spjd} 408185029Spjd 409185029Spjd/* 410168404Spjd * Policy for top-level read operations (list pools). Requires no privileges, 411168404Spjd * and can be used in the local zone, as there is no associated dataset. 412168404Spjd */ 413168404Spjd/* ARGSUSED */ 414168404Spjdstatic int 415248571Smmzfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 416168404Spjd{ 417168404Spjd return (0); 418168404Spjd} 419168404Spjd 420168404Spjd/* 421168404Spjd * Policy for dataset read operations (list children, get statistics). Requires 422168404Spjd * no privileges, but must be visible in the local zone. 423168404Spjd */ 424168404Spjd/* ARGSUSED */ 425168404Spjdstatic int 426248571Smmzfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 427168404Spjd{ 428185029Spjd if (INGLOBALZONE(curthread) || 429185029Spjd zone_dataset_visible(zc->zc_name, NULL)) 430168404Spjd return (0); 431168404Spjd 432249195Smm return (SET_ERROR(ENOENT)); 433168404Spjd} 434168404Spjd 435168404Spjdstatic int 436219089Spjdzfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) 437168404Spjd{ 438168404Spjd int writable = 1; 439168404Spjd 440168404Spjd /* 441168404Spjd * The dataset must be visible by this zone -- check this first 442168404Spjd * so they don't see EPERM on something they shouldn't know about. 443168404Spjd */ 444185029Spjd if (!INGLOBALZONE(curthread) && 445168404Spjd !zone_dataset_visible(dataset, &writable)) 446249195Smm return (SET_ERROR(ENOENT)); 447168404Spjd 448185029Spjd if (INGLOBALZONE(curthread)) { 449168404Spjd /* 450168404Spjd * If the fs is zoned, only root can access it from the 451168404Spjd * global zone. 452168404Spjd */ 453168404Spjd if (secpolicy_zfs(cr) && zoned) 454249195Smm return (SET_ERROR(EPERM)); 455168404Spjd } else { 456168404Spjd /* 457168404Spjd * If we are in a local zone, the 'zoned' property must be set. 458168404Spjd */ 459168404Spjd if (!zoned) 460249195Smm return (SET_ERROR(EPERM)); 461168404Spjd 462168404Spjd /* must be writable by this zone */ 463168404Spjd if (!writable) 464249195Smm return (SET_ERROR(EPERM)); 465168404Spjd } 466168404Spjd return (0); 467168404Spjd} 468168404Spjd 469219089Spjdstatic int 470219089Spjdzfs_dozonecheck(const char *dataset, cred_t *cr) 471219089Spjd{ 472219089Spjd uint64_t zoned; 473219089Spjd 474219089Spjd if (dsl_prop_get_integer(dataset, "jailed", &zoned, NULL)) 475249195Smm return (SET_ERROR(ENOENT)); 476219089Spjd 477219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 478219089Spjd} 479219089Spjd 480219089Spjdstatic int 481219089Spjdzfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) 482219089Spjd{ 483219089Spjd uint64_t zoned; 484219089Spjd 485248571Smm if (dsl_prop_get_int_ds(ds, "jailed", &zoned)) 486249195Smm return (SET_ERROR(ENOENT)); 487219089Spjd 488219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 489219089Spjd} 490219089Spjd 491248571Smmstatic int 492248571Smmzfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, 493248571Smm const char *perm, cred_t *cr) 494168404Spjd{ 495168404Spjd int error; 496168404Spjd 497228103Smm error = zfs_dozonecheck_ds(name, ds, cr); 498185029Spjd if (error == 0) { 499185029Spjd error = secpolicy_zfs(cr); 500248571Smm if (error != 0) 501248571Smm error = dsl_deleg_access_impl(ds, perm, cr); 502185029Spjd } 503185029Spjd return (error); 504185029Spjd} 505185029Spjd 506248571Smmstatic int 507248571Smmzfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) 508219089Spjd{ 509219089Spjd int error; 510248571Smm dsl_dataset_t *ds; 511248571Smm dsl_pool_t *dp; 512219089Spjd 513307111Smav /* 514307111Smav * First do a quick check for root in the global zone, which 515307111Smav * is allowed to do all write_perms. This ensures that zfs_ioc_* 516307111Smav * will get to handle nonexistent datasets. 517307111Smav */ 518307111Smav if (INGLOBALZONE(curthread) && secpolicy_zfs(cr) == 0) 519307111Smav return (0); 520307111Smav 521248571Smm error = dsl_pool_hold(name, FTAG, &dp); 522248571Smm if (error != 0) 523248571Smm return (error); 524248571Smm 525248571Smm error = dsl_dataset_hold(dp, name, FTAG, &ds); 526248571Smm if (error != 0) { 527248571Smm dsl_pool_rele(dp, FTAG); 528248571Smm return (error); 529219089Spjd } 530248571Smm 531248571Smm error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); 532248571Smm 533248571Smm dsl_dataset_rele(ds, FTAG); 534248571Smm dsl_pool_rele(dp, FTAG); 535219089Spjd return (error); 536219089Spjd} 537219089Spjd 538219089Spjd#ifdef SECLABEL 539219089Spjd/* 540219089Spjd * Policy for setting the security label property. 541219089Spjd * 542219089Spjd * Returns 0 for success, non-zero for access and other errors. 543219089Spjd */ 544185029Spjdstatic int 545219089Spjdzfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) 546185029Spjd{ 547219089Spjd char ds_hexsl[MAXNAMELEN]; 548219089Spjd bslabel_t ds_sl, new_sl; 549219089Spjd boolean_t new_default = FALSE; 550219089Spjd uint64_t zoned; 551219089Spjd int needed_priv = -1; 552219089Spjd int error; 553219089Spjd 554219089Spjd /* First get the existing dataset label. */ 555219089Spjd error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), 556219089Spjd 1, sizeof (ds_hexsl), &ds_hexsl, NULL); 557248571Smm if (error != 0) 558249195Smm return (SET_ERROR(EPERM)); 559219089Spjd 560219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 561219089Spjd new_default = TRUE; 562219089Spjd 563219089Spjd /* The label must be translatable */ 564219089Spjd if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) 565249195Smm return (SET_ERROR(EINVAL)); 566219089Spjd 567185029Spjd /* 568219089Spjd * In a non-global zone, disallow attempts to set a label that 569219089Spjd * doesn't match that of the zone; otherwise no other checks 570219089Spjd * are needed. 571219089Spjd */ 572219089Spjd if (!INGLOBALZONE(curproc)) { 573219089Spjd if (new_default || !blequal(&new_sl, CR_SL(CRED()))) 574249195Smm return (SET_ERROR(EPERM)); 575219089Spjd return (0); 576219089Spjd } 577219089Spjd 578219089Spjd /* 579219089Spjd * For global-zone datasets (i.e., those whose zoned property is 580219089Spjd * "off", verify that the specified new label is valid for the 581219089Spjd * global zone. 582219089Spjd */ 583219089Spjd if (dsl_prop_get_integer(name, 584219089Spjd zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) 585249195Smm return (SET_ERROR(EPERM)); 586219089Spjd if (!zoned) { 587219089Spjd if (zfs_check_global_label(name, strval) != 0) 588249195Smm return (SET_ERROR(EPERM)); 589219089Spjd } 590219089Spjd 591219089Spjd /* 592219089Spjd * If the existing dataset label is nondefault, check if the 593219089Spjd * dataset is mounted (label cannot be changed while mounted). 594219089Spjd * Get the zfsvfs; if there isn't one, then the dataset isn't 595219089Spjd * mounted (or isn't a dataset, doesn't exist, ...). 596219089Spjd */ 597219089Spjd if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { 598219089Spjd objset_t *os; 599219089Spjd static char *setsl_tag = "setsl_tag"; 600219089Spjd 601219089Spjd /* 602219089Spjd * Try to own the dataset; abort if there is any error, 603219089Spjd * (e.g., already mounted, in use, or other error). 604219089Spjd */ 605219089Spjd error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, 606219089Spjd setsl_tag, &os); 607248571Smm if (error != 0) 608249195Smm return (SET_ERROR(EPERM)); 609219089Spjd 610219089Spjd dmu_objset_disown(os, setsl_tag); 611219089Spjd 612219089Spjd if (new_default) { 613219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 614219089Spjd goto out_check; 615219089Spjd } 616219089Spjd 617219089Spjd if (hexstr_to_label(strval, &new_sl) != 0) 618249195Smm return (SET_ERROR(EPERM)); 619219089Spjd 620219089Spjd if (blstrictdom(&ds_sl, &new_sl)) 621219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 622219089Spjd else if (blstrictdom(&new_sl, &ds_sl)) 623219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 624219089Spjd } else { 625219089Spjd /* dataset currently has a default label */ 626219089Spjd if (!new_default) 627219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 628219089Spjd } 629219089Spjd 630219089Spjdout_check: 631219089Spjd if (needed_priv != -1) 632219089Spjd return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); 633219089Spjd return (0); 634219089Spjd} 635219089Spjd#endif /* SECLABEL */ 636219089Spjd 637219089Spjdstatic int 638219089Spjdzfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, 639219089Spjd cred_t *cr) 640219089Spjd{ 641219089Spjd char *strval; 642219089Spjd 643219089Spjd /* 644185029Spjd * Check permissions for special properties. 645185029Spjd */ 646185029Spjd switch (prop) { 647185029Spjd case ZFS_PROP_ZONED: 648185029Spjd /* 649185029Spjd * Disallow setting of 'zoned' from within a local zone. 650185029Spjd */ 651185029Spjd if (!INGLOBALZONE(curthread)) 652249195Smm return (SET_ERROR(EPERM)); 653185029Spjd break; 654185029Spjd 655185029Spjd case ZFS_PROP_QUOTA: 656264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 657264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 658185029Spjd if (!INGLOBALZONE(curthread)) { 659185029Spjd uint64_t zoned; 660307108Smav char setpoint[ZFS_MAX_DATASET_NAME_LEN]; 661185029Spjd /* 662185029Spjd * Unprivileged users are allowed to modify the 663264835Sdelphij * limit on things *under* (ie. contained by) 664185029Spjd * the thing they own. 665185029Spjd */ 666219089Spjd if (dsl_prop_get_integer(dsname, "jailed", &zoned, 667185029Spjd setpoint)) 668249195Smm return (SET_ERROR(EPERM)); 669219089Spjd if (!zoned || strlen(dsname) <= strlen(setpoint)) 670249195Smm return (SET_ERROR(EPERM)); 671185029Spjd } 672185029Spjd break; 673219089Spjd 674219089Spjd case ZFS_PROP_MLSLABEL: 675219089Spjd#ifdef SECLABEL 676219089Spjd if (!is_system_labeled()) 677249195Smm return (SET_ERROR(EPERM)); 678219089Spjd 679219089Spjd if (nvpair_value_string(propval, &strval) == 0) { 680219089Spjd int err; 681219089Spjd 682219089Spjd err = zfs_set_slabel_policy(dsname, strval, CRED()); 683219089Spjd if (err != 0) 684219089Spjd return (err); 685219089Spjd } 686219089Spjd#else 687219089Spjd return (EOPNOTSUPP); 688219089Spjd#endif 689219089Spjd break; 690185029Spjd } 691185029Spjd 692219089Spjd return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); 693185029Spjd} 694185029Spjd 695248571Smm/* ARGSUSED */ 696248571Smmstatic int 697248571Smmzfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 698185029Spjd{ 699185029Spjd int error; 700185029Spjd 701185029Spjd error = zfs_dozonecheck(zc->zc_name, cr); 702248571Smm if (error != 0) 703168404Spjd return (error); 704168404Spjd 705185029Spjd /* 706185029Spjd * permission to set permissions will be evaluated later in 707185029Spjd * dsl_deleg_can_allow() 708185029Spjd */ 709185029Spjd return (0); 710168404Spjd} 711168404Spjd 712248571Smm/* ARGSUSED */ 713248571Smmstatic int 714248571Smmzfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 715185029Spjd{ 716219089Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 717219089Spjd ZFS_DELEG_PERM_ROLLBACK, cr)); 718185029Spjd} 719185029Spjd 720248571Smm/* ARGSUSED */ 721248571Smmstatic int 722248571Smmzfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 723185029Spjd{ 724219089Spjd dsl_pool_t *dp; 725219089Spjd dsl_dataset_t *ds; 726219089Spjd char *cp; 727219089Spjd int error; 728219089Spjd 729219089Spjd /* 730219089Spjd * Generate the current snapshot name from the given objsetid, then 731219089Spjd * use that name for the secpolicy/zone checks. 732219089Spjd */ 733219089Spjd cp = strchr(zc->zc_name, '@'); 734219089Spjd if (cp == NULL) 735249195Smm return (SET_ERROR(EINVAL)); 736248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 737248571Smm if (error != 0) 738219089Spjd return (error); 739219089Spjd 740219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); 741248571Smm if (error != 0) { 742248571Smm dsl_pool_rele(dp, FTAG); 743219089Spjd return (error); 744248571Smm } 745219089Spjd 746219089Spjd dsl_dataset_name(ds, zc->zc_name); 747219089Spjd 748219089Spjd error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, 749219089Spjd ZFS_DELEG_PERM_SEND, cr); 750219089Spjd dsl_dataset_rele(ds, FTAG); 751248571Smm dsl_pool_rele(dp, FTAG); 752219089Spjd 753219089Spjd return (error); 754185029Spjd} 755185029Spjd 756248571Smm/* ARGSUSED */ 757209962Smmstatic int 758248571Smmzfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 759209962Smm{ 760248571Smm return (zfs_secpolicy_write_perms(zc->zc_name, 761248571Smm ZFS_DELEG_PERM_SEND, cr)); 762248571Smm} 763248571Smm 764248571Smm/* ARGSUSED */ 765248571Smmstatic int 766248571Smmzfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 767248571Smm{ 768209962Smm vnode_t *vp; 769209962Smm int error; 770209962Smm 771209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 772209962Smm NO_FOLLOW, NULL, &vp)) != 0) 773209962Smm return (error); 774209962Smm 775209962Smm /* Now make sure mntpnt and dataset are ZFS */ 776209962Smm 777209962Smm if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 778209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 779209962Smm zc->zc_name) != 0)) { 780209962Smm VN_RELE(vp); 781249195Smm return (SET_ERROR(EPERM)); 782209962Smm } 783209962Smm 784209962Smm VN_RELE(vp); 785209962Smm return (dsl_deleg_access(zc->zc_name, 786209962Smm ZFS_DELEG_PERM_SHARE, cr)); 787209962Smm} 788209962Smm 789185029Spjdint 790248571Smmzfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 791185029Spjd{ 792185029Spjd if (!INGLOBALZONE(curthread)) 793249195Smm return (SET_ERROR(EPERM)); 794185029Spjd 795185029Spjd if (secpolicy_nfs(cr) == 0) { 796185029Spjd return (0); 797185029Spjd } else { 798248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 799209962Smm } 800209962Smm} 801185029Spjd 802209962Smmint 803248571Smmzfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 804209962Smm{ 805209962Smm if (!INGLOBALZONE(curthread)) 806249195Smm return (SET_ERROR(EPERM)); 807185029Spjd 808209962Smm if (secpolicy_smb(cr) == 0) { 809209962Smm return (0); 810209962Smm } else { 811248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 812185029Spjd } 813185029Spjd} 814185029Spjd 815168404Spjdstatic int 816185029Spjdzfs_get_parent(const char *datasetname, char *parent, int parentsize) 817168404Spjd{ 818168404Spjd char *cp; 819168404Spjd 820168404Spjd /* 821168404Spjd * Remove the @bla or /bla from the end of the name to get the parent. 822168404Spjd */ 823185029Spjd (void) strncpy(parent, datasetname, parentsize); 824185029Spjd cp = strrchr(parent, '@'); 825168404Spjd if (cp != NULL) { 826168404Spjd cp[0] = '\0'; 827168404Spjd } else { 828185029Spjd cp = strrchr(parent, '/'); 829168404Spjd if (cp == NULL) 830249195Smm return (SET_ERROR(ENOENT)); 831168404Spjd cp[0] = '\0'; 832185029Spjd } 833168404Spjd 834185029Spjd return (0); 835185029Spjd} 836185029Spjd 837185029Spjdint 838185029Spjdzfs_secpolicy_destroy_perms(const char *name, cred_t *cr) 839185029Spjd{ 840185029Spjd int error; 841185029Spjd 842185029Spjd if ((error = zfs_secpolicy_write_perms(name, 843185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 844185029Spjd return (error); 845185029Spjd 846185029Spjd return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); 847185029Spjd} 848185029Spjd 849248571Smm/* ARGSUSED */ 850185029Spjdstatic int 851248571Smmzfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 852185029Spjd{ 853185029Spjd return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); 854185029Spjd} 855185029Spjd 856185029Spjd/* 857219089Spjd * Destroying snapshots with delegated permissions requires 858248571Smm * descendant mount and destroy permissions. 859185029Spjd */ 860248571Smm/* ARGSUSED */ 861185029Spjdstatic int 862248571Smmzfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 863185029Spjd{ 864248571Smm nvlist_t *snaps; 865248571Smm nvpair_t *pair, *nextpair; 866248571Smm int error = 0; 867219089Spjd 868248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 869249195Smm return (SET_ERROR(EINVAL)); 870248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 871248571Smm pair = nextpair) { 872248571Smm nextpair = nvlist_next_nvpair(snaps, pair); 873260183Sdelphij error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); 874260183Sdelphij if (error == ENOENT) { 875248571Smm /* 876248571Smm * Ignore any snapshots that don't exist (we consider 877248571Smm * them "already destroyed"). Remove the name from the 878248571Smm * nvl here in case the snapshot is created between 879248571Smm * now and when we try to destroy it (in which case 880248571Smm * we don't want to destroy it since we haven't 881248571Smm * checked for permission). 882248571Smm */ 883248571Smm fnvlist_remove_nvpair(snaps, pair); 884248571Smm error = 0; 885248571Smm } 886248571Smm if (error != 0) 887248571Smm break; 888248571Smm } 889222050Smm 890219089Spjd return (error); 891185029Spjd} 892185029Spjd 893185029Spjdint 894185029Spjdzfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) 895185029Spjd{ 896307108Smav char parentname[ZFS_MAX_DATASET_NAME_LEN]; 897185029Spjd int error; 898185029Spjd 899185029Spjd if ((error = zfs_secpolicy_write_perms(from, 900185029Spjd ZFS_DELEG_PERM_RENAME, cr)) != 0) 901185029Spjd return (error); 902185029Spjd 903185029Spjd if ((error = zfs_secpolicy_write_perms(from, 904185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 905185029Spjd return (error); 906185029Spjd 907185029Spjd if ((error = zfs_get_parent(to, parentname, 908185029Spjd sizeof (parentname))) != 0) 909185029Spjd return (error); 910185029Spjd 911185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 912185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 913185029Spjd return (error); 914185029Spjd 915185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 916185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 917185029Spjd return (error); 918185029Spjd 919185029Spjd return (error); 920185029Spjd} 921185029Spjd 922248571Smm/* ARGSUSED */ 923185029Spjdstatic int 924248571Smmzfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 925185029Spjd{ 926240870Spjd char *at = NULL; 927353759Savg char *pound; 928240870Spjd int error; 929240870Spjd 930353759Savg if ((pound = strchr(zc->zc_name, '#')) != NULL) { 931353759Savg *pound = '\0'; 932353759Savg error = zfs_secpolicy_write_perms(zc->zc_name, 933353759Savg ZFS_DELEG_PERM_RENAME, cr); 934353759Savg if (error == 0) { 935353759Savg error = zfs_secpolicy_write_perms(zc->zc_name, 936353759Savg ZFS_DELEG_PERM_BOOKMARK, cr); 937353759Savg } 938353759Savg *pound = '#'; 939353759Savg return (error); 940353759Savg } 941353759Savg 942240870Spjd if ((zc->zc_cookie & 1) != 0) { 943240870Spjd /* 944240870Spjd * This is recursive rename, so the starting snapshot might 945240870Spjd * not exist. Check file system or volume permission instead. 946240870Spjd */ 947240870Spjd at = strchr(zc->zc_name, '@'); 948240870Spjd if (at == NULL) 949240870Spjd return (EINVAL); 950240870Spjd *at = '\0'; 951240870Spjd } 952240870Spjd 953240870Spjd error = zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr); 954240870Spjd 955240870Spjd if (at != NULL) 956240870Spjd *at = '@'; 957240870Spjd 958240870Spjd return (error); 959185029Spjd} 960185029Spjd 961248571Smm/* ARGSUSED */ 962185029Spjdstatic int 963248571Smmzfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 964185029Spjd{ 965248571Smm dsl_pool_t *dp; 966248571Smm dsl_dataset_t *clone; 967185029Spjd int error; 968185029Spjd 969185029Spjd error = zfs_secpolicy_write_perms(zc->zc_name, 970185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 971248571Smm if (error != 0) 972185029Spjd return (error); 973185029Spjd 974248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 975248571Smm if (error != 0) 976248571Smm return (error); 977185029Spjd 978248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); 979248571Smm 980185029Spjd if (error == 0) { 981307108Smav char parentname[ZFS_MAX_DATASET_NAME_LEN]; 982248571Smm dsl_dataset_t *origin = NULL; 983185029Spjd dsl_dir_t *dd; 984248571Smm dd = clone->ds_dir; 985185029Spjd 986185029Spjd error = dsl_dataset_hold_obj(dd->dd_pool, 987275782Sdelphij dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); 988248571Smm if (error != 0) { 989248571Smm dsl_dataset_rele(clone, FTAG); 990248571Smm dsl_pool_rele(dp, FTAG); 991185029Spjd return (error); 992185029Spjd } 993185029Spjd 994248571Smm error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, 995185029Spjd ZFS_DELEG_PERM_MOUNT, cr); 996185029Spjd 997248571Smm dsl_dataset_name(origin, parentname); 998248571Smm if (error == 0) { 999248571Smm error = zfs_secpolicy_write_perms_ds(parentname, origin, 1000185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 1001248571Smm } 1002248571Smm dsl_dataset_rele(clone, FTAG); 1003248571Smm dsl_dataset_rele(origin, FTAG); 1004168404Spjd } 1005248571Smm dsl_pool_rele(dp, FTAG); 1006185029Spjd return (error); 1007185029Spjd} 1008168404Spjd 1009248571Smm/* ARGSUSED */ 1010185029Spjdstatic int 1011248571Smmzfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1012185029Spjd{ 1013185029Spjd int error; 1014185029Spjd 1015185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1016185029Spjd ZFS_DELEG_PERM_RECEIVE, cr)) != 0) 1017185029Spjd return (error); 1018185029Spjd 1019185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1020185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 1021185029Spjd return (error); 1022185029Spjd 1023185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1024185029Spjd ZFS_DELEG_PERM_CREATE, cr)); 1025168404Spjd} 1026168404Spjd 1027185029Spjdint 1028185029Spjdzfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) 1029185029Spjd{ 1030219089Spjd return (zfs_secpolicy_write_perms(name, 1031219089Spjd ZFS_DELEG_PERM_SNAPSHOT, cr)); 1032185029Spjd} 1033185029Spjd 1034248571Smm/* 1035248571Smm * Check for permission to create each snapshot in the nvlist. 1036248571Smm */ 1037248571Smm/* ARGSUSED */ 1038185029Spjdstatic int 1039248571Smmzfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1040185029Spjd{ 1041248571Smm nvlist_t *snaps; 1042248571Smm int error; 1043248571Smm nvpair_t *pair; 1044185029Spjd 1045248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 1046249195Smm return (SET_ERROR(EINVAL)); 1047248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 1048248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 1049248571Smm char *name = nvpair_name(pair); 1050248571Smm char *atp = strchr(name, '@'); 1051248571Smm 1052248571Smm if (atp == NULL) { 1053249195Smm error = SET_ERROR(EINVAL); 1054248571Smm break; 1055248571Smm } 1056248571Smm *atp = '\0'; 1057248571Smm error = zfs_secpolicy_snapshot_perms(name, cr); 1058248571Smm *atp = '@'; 1059248571Smm if (error != 0) 1060248571Smm break; 1061248571Smm } 1062248571Smm return (error); 1063185029Spjd} 1064185029Spjd 1065260183Sdelphij/* 1066260183Sdelphij * Check for permission to create each snapshot in the nvlist. 1067260183Sdelphij */ 1068248571Smm/* ARGSUSED */ 1069185029Spjdstatic int 1070260183Sdelphijzfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1071260183Sdelphij{ 1072260183Sdelphij int error = 0; 1073260183Sdelphij 1074260183Sdelphij for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); 1075260183Sdelphij pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { 1076260183Sdelphij char *name = nvpair_name(pair); 1077260183Sdelphij char *hashp = strchr(name, '#'); 1078260183Sdelphij 1079260183Sdelphij if (hashp == NULL) { 1080260183Sdelphij error = SET_ERROR(EINVAL); 1081260183Sdelphij break; 1082260183Sdelphij } 1083260183Sdelphij *hashp = '\0'; 1084260183Sdelphij error = zfs_secpolicy_write_perms(name, 1085260183Sdelphij ZFS_DELEG_PERM_BOOKMARK, cr); 1086260183Sdelphij *hashp = '#'; 1087260183Sdelphij if (error != 0) 1088260183Sdelphij break; 1089260183Sdelphij } 1090260183Sdelphij return (error); 1091260183Sdelphij} 1092260183Sdelphij 1093260183Sdelphij/* ARGSUSED */ 1094260183Sdelphijstatic int 1095332525Smavzfs_secpolicy_remap(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1096332525Smav{ 1097332525Smav return (zfs_secpolicy_write_perms(zc->zc_name, 1098332525Smav ZFS_DELEG_PERM_REMAP, cr)); 1099332525Smav} 1100332525Smav 1101332525Smav/* ARGSUSED */ 1102332525Smavstatic int 1103260183Sdelphijzfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1104260183Sdelphij{ 1105260183Sdelphij nvpair_t *pair, *nextpair; 1106260183Sdelphij int error = 0; 1107260183Sdelphij 1108260183Sdelphij for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; 1109260183Sdelphij pair = nextpair) { 1110260183Sdelphij char *name = nvpair_name(pair); 1111260183Sdelphij char *hashp = strchr(name, '#'); 1112260183Sdelphij nextpair = nvlist_next_nvpair(innvl, pair); 1113260183Sdelphij 1114260183Sdelphij if (hashp == NULL) { 1115260183Sdelphij error = SET_ERROR(EINVAL); 1116260183Sdelphij break; 1117260183Sdelphij } 1118260183Sdelphij 1119260183Sdelphij *hashp = '\0'; 1120260183Sdelphij error = zfs_secpolicy_write_perms(name, 1121260183Sdelphij ZFS_DELEG_PERM_DESTROY, cr); 1122260183Sdelphij *hashp = '#'; 1123260183Sdelphij if (error == ENOENT) { 1124260183Sdelphij /* 1125260183Sdelphij * Ignore any filesystems that don't exist (we consider 1126260183Sdelphij * their bookmarks "already destroyed"). Remove 1127260183Sdelphij * the name from the nvl here in case the filesystem 1128260183Sdelphij * is created between now and when we try to destroy 1129260183Sdelphij * the bookmark (in which case we don't want to 1130260183Sdelphij * destroy it since we haven't checked for permission). 1131260183Sdelphij */ 1132260183Sdelphij fnvlist_remove_nvpair(innvl, pair); 1133260183Sdelphij error = 0; 1134260183Sdelphij } 1135260183Sdelphij if (error != 0) 1136260183Sdelphij break; 1137260183Sdelphij } 1138260183Sdelphij 1139260183Sdelphij return (error); 1140260183Sdelphij} 1141260183Sdelphij 1142260183Sdelphij/* ARGSUSED */ 1143260183Sdelphijstatic int 1144248571Smmzfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1145185029Spjd{ 1146248571Smm /* 1147248571Smm * Even root must have a proper TSD so that we know what pool 1148248571Smm * to log to. 1149248571Smm */ 1150248571Smm if (tsd_get(zfs_allow_log_key) == NULL) 1151249195Smm return (SET_ERROR(EPERM)); 1152248571Smm return (0); 1153248571Smm} 1154248571Smm 1155248571Smmstatic int 1156248571Smmzfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1157248571Smm{ 1158307108Smav char parentname[ZFS_MAX_DATASET_NAME_LEN]; 1159219089Spjd int error; 1160248571Smm char *origin; 1161185029Spjd 1162185029Spjd if ((error = zfs_get_parent(zc->zc_name, parentname, 1163185029Spjd sizeof (parentname))) != 0) 1164185029Spjd return (error); 1165185029Spjd 1166248571Smm if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && 1167248571Smm (error = zfs_secpolicy_write_perms(origin, 1168248571Smm ZFS_DELEG_PERM_CLONE, cr)) != 0) 1169248571Smm return (error); 1170185029Spjd 1171185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 1172185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 1173185029Spjd return (error); 1174185029Spjd 1175248571Smm return (zfs_secpolicy_write_perms(parentname, 1176248571Smm ZFS_DELEG_PERM_MOUNT, cr)); 1177185029Spjd} 1178185029Spjd 1179168404Spjd/* 1180168404Spjd * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 1181168404Spjd * SYS_CONFIG privilege, which is not available in a local zone. 1182168404Spjd */ 1183168404Spjd/* ARGSUSED */ 1184168404Spjdstatic int 1185248571Smmzfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1186168404Spjd{ 1187168404Spjd if (secpolicy_sys_config(cr, B_FALSE) != 0) 1188249195Smm return (SET_ERROR(EPERM)); 1189168404Spjd 1190168404Spjd return (0); 1191168404Spjd} 1192168404Spjd 1193168404Spjd/* 1194219089Spjd * Policy for object to name lookups. 1195185029Spjd */ 1196219089Spjd/* ARGSUSED */ 1197185029Spjdstatic int 1198248571Smmzfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1199185029Spjd{ 1200219089Spjd int error; 1201185029Spjd 1202219089Spjd if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) 1203219089Spjd return (0); 1204219089Spjd 1205219089Spjd error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); 1206219089Spjd return (error); 1207185029Spjd} 1208185029Spjd 1209185029Spjd/* 1210168404Spjd * Policy for fault injection. Requires all privileges. 1211168404Spjd */ 1212168404Spjd/* ARGSUSED */ 1213168404Spjdstatic int 1214248571Smmzfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1215168404Spjd{ 1216168404Spjd return (secpolicy_zinject(cr)); 1217168404Spjd} 1218168404Spjd 1219248571Smm/* ARGSUSED */ 1220185029Spjdstatic int 1221248571Smmzfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1222185029Spjd{ 1223185029Spjd zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); 1224185029Spjd 1225185029Spjd if (prop == ZPROP_INVAL) { 1226185029Spjd if (!zfs_prop_user(zc->zc_value)) 1227249195Smm return (SET_ERROR(EINVAL)); 1228185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1229185029Spjd ZFS_DELEG_PERM_USERPROP, cr)); 1230185029Spjd } else { 1231219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, prop, 1232219089Spjd NULL, cr)); 1233185029Spjd } 1234185029Spjd} 1235185029Spjd 1236168404Spjdstatic int 1237248571Smmzfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1238209962Smm{ 1239248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1240209962Smm if (err) 1241209962Smm return (err); 1242209962Smm 1243209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1244249195Smm return (SET_ERROR(EINVAL)); 1245209962Smm 1246209962Smm if (zc->zc_value[0] == 0) { 1247209962Smm /* 1248209962Smm * They are asking about a posix uid/gid. If it's 1249209962Smm * themself, allow it. 1250209962Smm */ 1251209962Smm if (zc->zc_objset_type == ZFS_PROP_USERUSED || 1252209962Smm zc->zc_objset_type == ZFS_PROP_USERQUOTA) { 1253209962Smm if (zc->zc_guid == crgetuid(cr)) 1254209962Smm return (0); 1255209962Smm } else { 1256209962Smm if (groupmember(zc->zc_guid, cr)) 1257209962Smm return (0); 1258209962Smm } 1259209962Smm } 1260209962Smm 1261209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1262209962Smm userquota_perms[zc->zc_objset_type], cr)); 1263209962Smm} 1264209962Smm 1265209962Smmstatic int 1266248571Smmzfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1267209962Smm{ 1268248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1269209962Smm if (err) 1270209962Smm return (err); 1271209962Smm 1272209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1273249195Smm return (SET_ERROR(EINVAL)); 1274209962Smm 1275209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1276209962Smm userquota_perms[zc->zc_objset_type], cr)); 1277209962Smm} 1278209962Smm 1279248571Smm/* ARGSUSED */ 1280209962Smmstatic int 1281248571Smmzfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1282209962Smm{ 1283219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, 1284219089Spjd NULL, cr)); 1285209962Smm} 1286209962Smm 1287248571Smm/* ARGSUSED */ 1288219089Spjdstatic int 1289248571Smmzfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1290219089Spjd{ 1291248571Smm nvpair_t *pair; 1292248571Smm nvlist_t *holds; 1293248571Smm int error; 1294248571Smm 1295248571Smm error = nvlist_lookup_nvlist(innvl, "holds", &holds); 1296248571Smm if (error != 0) 1297249195Smm return (SET_ERROR(EINVAL)); 1298248571Smm 1299248571Smm for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; 1300248571Smm pair = nvlist_next_nvpair(holds, pair)) { 1301307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 1302248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1303248571Smm if (error != 0) 1304248571Smm return (error); 1305248571Smm error = zfs_secpolicy_write_perms(fsname, 1306248571Smm ZFS_DELEG_PERM_HOLD, cr); 1307248571Smm if (error != 0) 1308248571Smm return (error); 1309248571Smm } 1310248571Smm return (0); 1311219089Spjd} 1312219089Spjd 1313248571Smm/* ARGSUSED */ 1314219089Spjdstatic int 1315248571Smmzfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1316219089Spjd{ 1317248571Smm nvpair_t *pair; 1318248571Smm int error; 1319248571Smm 1320248571Smm for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; 1321248571Smm pair = nvlist_next_nvpair(innvl, pair)) { 1322307108Smav char fsname[ZFS_MAX_DATASET_NAME_LEN]; 1323248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1324248571Smm if (error != 0) 1325248571Smm return (error); 1326248571Smm error = zfs_secpolicy_write_perms(fsname, 1327248571Smm ZFS_DELEG_PERM_RELEASE, cr); 1328248571Smm if (error != 0) 1329248571Smm return (error); 1330248571Smm } 1331248571Smm return (0); 1332219089Spjd} 1333219089Spjd 1334168404Spjd/* 1335219089Spjd * Policy for allowing temporary snapshots to be taken or released 1336219089Spjd */ 1337219089Spjdstatic int 1338248571Smmzfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1339219089Spjd{ 1340219089Spjd /* 1341219089Spjd * A temporary snapshot is the same as a snapshot, 1342219089Spjd * hold, destroy and release all rolled into one. 1343219089Spjd * Delegated diff alone is sufficient that we allow this. 1344219089Spjd */ 1345219089Spjd int error; 1346219089Spjd 1347219089Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1348219089Spjd ZFS_DELEG_PERM_DIFF, cr)) == 0) 1349219089Spjd return (0); 1350219089Spjd 1351248571Smm error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); 1352248571Smm if (error == 0) 1353248571Smm error = zfs_secpolicy_hold(zc, innvl, cr); 1354248571Smm if (error == 0) 1355248571Smm error = zfs_secpolicy_release(zc, innvl, cr); 1356248571Smm if (error == 0) 1357248571Smm error = zfs_secpolicy_destroy(zc, innvl, cr); 1358219089Spjd return (error); 1359219089Spjd} 1360219089Spjd 1361219089Spjd/* 1362168404Spjd * Returns the nvlist as specified by the user in the zfs_cmd_t. 1363168404Spjd */ 1364168404Spjdstatic int 1365219089Spjdget_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) 1366168404Spjd{ 1367168404Spjd char *packed; 1368168404Spjd int error; 1369185029Spjd nvlist_t *list = NULL; 1370168404Spjd 1371168404Spjd /* 1372168404Spjd * Read in and unpack the user-supplied nvlist. 1373168404Spjd */ 1374185029Spjd if (size == 0) 1375249195Smm return (SET_ERROR(EINVAL)); 1376168404Spjd 1377168404Spjd packed = kmem_alloc(size, KM_SLEEP); 1378168404Spjd 1379219089Spjd if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, 1380219089Spjd iflag)) != 0) { 1381168404Spjd kmem_free(packed, size); 1382294807Smav return (SET_ERROR(EFAULT)); 1383168404Spjd } 1384168404Spjd 1385185029Spjd if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { 1386168404Spjd kmem_free(packed, size); 1387168404Spjd return (error); 1388168404Spjd } 1389168404Spjd 1390168404Spjd kmem_free(packed, size); 1391168404Spjd 1392185029Spjd *nvp = list; 1393168404Spjd return (0); 1394168404Spjd} 1395168404Spjd 1396248571Smm/* 1397248571Smm * Reduce the size of this nvlist until it can be serialized in 'max' bytes. 1398248571Smm * Entries will be removed from the end of the nvlist, and one int32 entry 1399248571Smm * named "N_MORE_ERRORS" will be added indicating how many entries were 1400248571Smm * removed. 1401248571Smm */ 1402168404Spjdstatic int 1403248571Smmnvlist_smush(nvlist_t *errors, size_t max) 1404219089Spjd{ 1405219089Spjd size_t size; 1406219089Spjd 1407248571Smm size = fnvlist_size(errors); 1408219089Spjd 1409248571Smm if (size > max) { 1410219089Spjd nvpair_t *more_errors; 1411219089Spjd int n = 0; 1412219089Spjd 1413248571Smm if (max < 1024) 1414249195Smm return (SET_ERROR(ENOMEM)); 1415219089Spjd 1416248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); 1417248571Smm more_errors = nvlist_prev_nvpair(errors, NULL); 1418219089Spjd 1419219089Spjd do { 1420248571Smm nvpair_t *pair = nvlist_prev_nvpair(errors, 1421219089Spjd more_errors); 1422248571Smm fnvlist_remove_nvpair(errors, pair); 1423219089Spjd n++; 1424248571Smm size = fnvlist_size(errors); 1425248571Smm } while (size > max); 1426219089Spjd 1427248571Smm fnvlist_remove_nvpair(errors, more_errors); 1428248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); 1429248571Smm ASSERT3U(fnvlist_size(errors), <=, max); 1430219089Spjd } 1431219089Spjd 1432219089Spjd return (0); 1433219089Spjd} 1434219089Spjd 1435219089Spjdstatic int 1436168404Spjdput_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 1437168404Spjd{ 1438168404Spjd char *packed = NULL; 1439219089Spjd int error = 0; 1440168404Spjd size_t size; 1441168404Spjd 1442248571Smm size = fnvlist_size(nvl); 1443168404Spjd 1444168404Spjd if (size > zc->zc_nvlist_dst_size) { 1445168404Spjd /* 1446168404Spjd * Solaris returns ENOMEM here, because even if an error is 1447168404Spjd * returned from an ioctl(2), new zc_nvlist_dst_size will be 1448168404Spjd * passed to the userland. This is not the case for FreeBSD. 1449168404Spjd * We need to return 0, so the kernel will copy the 1450168404Spjd * zc_nvlist_dst_size back and the userland can discover that a 1451168404Spjd * bigger buffer is needed. 1452168404Spjd */ 1453168404Spjd error = 0; 1454168404Spjd } else { 1455248571Smm packed = fnvlist_pack(nvl, &size); 1456219089Spjd if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 1457219089Spjd size, zc->zc_iflags) != 0) 1458249195Smm error = SET_ERROR(EFAULT); 1459248571Smm fnvlist_pack_free(packed, size); 1460168404Spjd } 1461168404Spjd 1462168404Spjd zc->zc_nvlist_dst_size = size; 1463248571Smm zc->zc_nvlist_dst_filled = B_TRUE; 1464168404Spjd return (error); 1465168404Spjd} 1466168404Spjd 1467325534Savgint 1468330990Savggetzfsvfs_impl(objset_t *os, vfs_t **vfsp) 1469209962Smm{ 1470330990Savg zfsvfs_t *zfvp; 1471325534Savg int error = 0; 1472209962Smm 1473219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1474249195Smm return (SET_ERROR(EINVAL)); 1475219089Spjd } 1476209962Smm 1477219089Spjd mutex_enter(&os->os_user_ptr_lock); 1478330990Savg zfvp = dmu_objset_get_user(os); 1479330990Savg if (zfvp) { 1480330990Savg *vfsp = zfvp->z_vfs; 1481330990Savg vfs_ref(zfvp->z_vfs); 1482209962Smm } else { 1483249195Smm error = SET_ERROR(ESRCH); 1484209962Smm } 1485219089Spjd mutex_exit(&os->os_user_ptr_lock); 1486325534Savg return (error); 1487325534Savg} 1488325534Savg 1489325541Savgint 1490325534Savggetzfsvfs(const char *dsname, zfsvfs_t **zfvp) 1491325534Savg{ 1492325534Savg objset_t *os; 1493330990Savg vfs_t *vfsp; 1494325534Savg int error; 1495325534Savg 1496325534Savg error = dmu_objset_hold(dsname, FTAG, &os); 1497325534Savg if (error != 0) 1498325534Savg return (error); 1499330990Savg error = getzfsvfs_impl(os, &vfsp); 1500219089Spjd dmu_objset_rele(os, FTAG); 1501325541Savg if (error != 0) 1502325541Savg return (error); 1503325541Savg 1504330990Savg error = vfs_busy(vfsp, 0); 1505330990Savg vfs_rel(vfsp); 1506325541Savg if (error != 0) { 1507325541Savg *zfvp = NULL; 1508325541Savg error = SET_ERROR(ESRCH); 1509330990Savg } else { 1510330990Savg *zfvp = vfsp->vfs_data; 1511302123Savg } 1512209962Smm return (error); 1513209962Smm} 1514209962Smm 1515209962Smm/* 1516209962Smm * Find a zfsvfs_t for a mounted filesystem, or create our own, in which 1517209962Smm * case its z_vfs will be NULL, and it will be opened as the owner. 1518236884Smm * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, 1519236884Smm * which prevents all vnode ops from running. 1520209962Smm */ 1521209962Smmstatic int 1522219089Spjdzfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) 1523209962Smm{ 1524209962Smm int error = 0; 1525209962Smm 1526219089Spjd if (getzfsvfs(name, zfvp) != 0) 1527219089Spjd error = zfsvfs_create(name, zfvp); 1528209962Smm if (error == 0) { 1529268865Sdelphij rrm_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : 1530219089Spjd RW_READER, tag); 1531324252Savg#ifdef illumos 1532219089Spjd if ((*zfvp)->z_unmounted) { 1533209962Smm /* 1534209962Smm * XXX we could probably try again, since the unmounting 1535209962Smm * thread should be just about to disassociate the 1536209962Smm * objset from the zfsvfs. 1537209962Smm */ 1538268865Sdelphij rrm_exit(&(*zfvp)->z_teardown_lock, tag); 1539249195Smm return (SET_ERROR(EBUSY)); 1540209962Smm } 1541324252Savg#else 1542324252Savg /* 1543324252Savg * vfs_busy() ensures that the filesystem is not and 1544324252Savg * can not be unmounted. 1545324252Savg */ 1546324252Savg ASSERT(!(*zfvp)->z_unmounted); 1547324252Savg#endif 1548209962Smm } 1549209962Smm return (error); 1550209962Smm} 1551209962Smm 1552209962Smmstatic void 1553209962Smmzfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) 1554209962Smm{ 1555268865Sdelphij rrm_exit(&zfsvfs->z_teardown_lock, tag); 1556209962Smm 1557209962Smm if (zfsvfs->z_vfs) { 1558297513Savg#ifdef illumos 1559209962Smm VFS_RELE(zfsvfs->z_vfs); 1560297513Savg#else 1561297513Savg vfs_unbusy(zfsvfs->z_vfs); 1562297513Savg#endif 1563209962Smm } else { 1564219089Spjd dmu_objset_disown(zfsvfs->z_os, zfsvfs); 1565209962Smm zfsvfs_free(zfsvfs); 1566209962Smm } 1567209962Smm} 1568209962Smm 1569209962Smmstatic int 1570168404Spjdzfs_ioc_pool_create(zfs_cmd_t *zc) 1571168404Spjd{ 1572168404Spjd int error; 1573185029Spjd nvlist_t *config, *props = NULL; 1574185029Spjd nvlist_t *rootprops = NULL; 1575185029Spjd nvlist_t *zplprops = NULL; 1576335545Savg char *spa_name = zc->zc_name; 1577168404Spjd 1578185029Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1579219089Spjd zc->zc_iflags, &config)) 1580168404Spjd return (error); 1581168404Spjd 1582185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1583219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1584219089Spjd zc->zc_iflags, &props))) { 1585185029Spjd nvlist_free(config); 1586185029Spjd return (error); 1587185029Spjd } 1588168404Spjd 1589185029Spjd if (props) { 1590185029Spjd nvlist_t *nvl = NULL; 1591185029Spjd uint64_t version = SPA_VERSION; 1592335545Savg char *tname; 1593185029Spjd 1594185029Spjd (void) nvlist_lookup_uint64(props, 1595185029Spjd zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); 1596236884Smm if (!SPA_VERSION_IS_SUPPORTED(version)) { 1597249195Smm error = SET_ERROR(EINVAL); 1598185029Spjd goto pool_props_bad; 1599185029Spjd } 1600185029Spjd (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); 1601185029Spjd if (nvl) { 1602185029Spjd error = nvlist_dup(nvl, &rootprops, KM_SLEEP); 1603185029Spjd if (error != 0) { 1604185029Spjd nvlist_free(config); 1605185029Spjd nvlist_free(props); 1606185029Spjd return (error); 1607185029Spjd } 1608185029Spjd (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); 1609185029Spjd } 1610185029Spjd VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1611185029Spjd error = zfs_fill_zplprops_root(version, rootprops, 1612185029Spjd zplprops, NULL); 1613248571Smm if (error != 0) 1614185029Spjd goto pool_props_bad; 1615335545Savg 1616335545Savg if (nvlist_lookup_string(props, 1617335545Savg zpool_prop_to_name(ZPOOL_PROP_TNAME), &tname) == 0) 1618335545Savg spa_name = tname; 1619185029Spjd } 1620185029Spjd 1621248571Smm error = spa_create(zc->zc_name, config, props, zplprops); 1622185029Spjd 1623185029Spjd /* 1624185029Spjd * Set the remaining root properties 1625185029Spjd */ 1626335545Savg if (!error && (error = zfs_set_prop_nvlist(spa_name, 1627219089Spjd ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) 1628335545Savg (void) spa_destroy(spa_name); 1629185029Spjd 1630185029Spjdpool_props_bad: 1631185029Spjd nvlist_free(rootprops); 1632185029Spjd nvlist_free(zplprops); 1633168404Spjd nvlist_free(config); 1634185029Spjd nvlist_free(props); 1635168404Spjd 1636168404Spjd return (error); 1637168404Spjd} 1638168404Spjd 1639168404Spjdstatic int 1640168404Spjdzfs_ioc_pool_destroy(zfs_cmd_t *zc) 1641168404Spjd{ 1642185029Spjd int error; 1643185029Spjd zfs_log_history(zc); 1644185029Spjd error = spa_destroy(zc->zc_name); 1645219089Spjd if (error == 0) 1646219089Spjd zvol_remove_minors(zc->zc_name); 1647185029Spjd return (error); 1648168404Spjd} 1649168404Spjd 1650168404Spjdstatic int 1651168404Spjdzfs_ioc_pool_import(zfs_cmd_t *zc) 1652168404Spjd{ 1653185029Spjd nvlist_t *config, *props = NULL; 1654168404Spjd uint64_t guid; 1655219089Spjd int error; 1656168404Spjd 1657185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1658219089Spjd zc->zc_iflags, &config)) != 0) 1659168404Spjd return (error); 1660168404Spjd 1661185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1662219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1663219089Spjd zc->zc_iflags, &props))) { 1664185029Spjd nvlist_free(config); 1665185029Spjd return (error); 1666185029Spjd } 1667185029Spjd 1668168404Spjd if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 1669168404Spjd guid != zc->zc_guid) 1670249195Smm error = SET_ERROR(EINVAL); 1671168404Spjd else 1672219089Spjd error = spa_import(zc->zc_name, config, props, zc->zc_cookie); 1673168404Spjd 1674219089Spjd if (zc->zc_nvlist_dst != 0) { 1675219089Spjd int err; 1676219089Spjd 1677219089Spjd if ((err = put_nvlist(zc, config)) != 0) 1678219089Spjd error = err; 1679219089Spjd } 1680219089Spjd 1681168404Spjd nvlist_free(config); 1682168404Spjd 1683296528Smav nvlist_free(props); 1684185029Spjd 1685168404Spjd return (error); 1686168404Spjd} 1687168404Spjd 1688168404Spjdstatic int 1689168404Spjdzfs_ioc_pool_export(zfs_cmd_t *zc) 1690168404Spjd{ 1691185029Spjd int error; 1692185029Spjd boolean_t force = (boolean_t)zc->zc_cookie; 1693207670Smm boolean_t hardforce = (boolean_t)zc->zc_guid; 1694185029Spjd 1695185029Spjd zfs_log_history(zc); 1696207670Smm error = spa_export(zc->zc_name, NULL, force, hardforce); 1697219089Spjd if (error == 0) 1698219089Spjd zvol_remove_minors(zc->zc_name); 1699185029Spjd return (error); 1700168404Spjd} 1701168404Spjd 1702168404Spjdstatic int 1703168404Spjdzfs_ioc_pool_configs(zfs_cmd_t *zc) 1704168404Spjd{ 1705168404Spjd nvlist_t *configs; 1706168404Spjd int error; 1707168404Spjd 1708168404Spjd if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 1709249195Smm return (SET_ERROR(EEXIST)); 1710168404Spjd 1711168404Spjd error = put_nvlist(zc, configs); 1712168404Spjd 1713168404Spjd nvlist_free(configs); 1714168404Spjd 1715168404Spjd return (error); 1716168404Spjd} 1717168404Spjd 1718236884Smm/* 1719236884Smm * inputs: 1720236884Smm * zc_name name of the pool 1721236884Smm * 1722236884Smm * outputs: 1723236884Smm * zc_cookie real errno 1724236884Smm * zc_nvlist_dst config nvlist 1725236884Smm * zc_nvlist_dst_size size of config nvlist 1726236884Smm */ 1727168404Spjdstatic int 1728168404Spjdzfs_ioc_pool_stats(zfs_cmd_t *zc) 1729168404Spjd{ 1730168404Spjd nvlist_t *config; 1731168404Spjd int error; 1732168404Spjd int ret = 0; 1733168404Spjd 1734168404Spjd error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 1735168404Spjd sizeof (zc->zc_value)); 1736168404Spjd 1737168404Spjd if (config != NULL) { 1738168404Spjd ret = put_nvlist(zc, config); 1739168404Spjd nvlist_free(config); 1740168404Spjd 1741168404Spjd /* 1742168404Spjd * The config may be present even if 'error' is non-zero. 1743168404Spjd * In this case we return success, and preserve the real errno 1744168404Spjd * in 'zc_cookie'. 1745168404Spjd */ 1746168404Spjd zc->zc_cookie = error; 1747168404Spjd } else { 1748168404Spjd ret = error; 1749168404Spjd } 1750168404Spjd 1751168404Spjd return (ret); 1752168404Spjd} 1753168404Spjd 1754168404Spjd/* 1755168404Spjd * Try to import the given pool, returning pool stats as appropriate so that 1756168404Spjd * user land knows which devices are available and overall pool health. 1757168404Spjd */ 1758168404Spjdstatic int 1759168404Spjdzfs_ioc_pool_tryimport(zfs_cmd_t *zc) 1760168404Spjd{ 1761168404Spjd nvlist_t *tryconfig, *config; 1762168404Spjd int error; 1763168404Spjd 1764185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1765219089Spjd zc->zc_iflags, &tryconfig)) != 0) 1766168404Spjd return (error); 1767168404Spjd 1768168404Spjd config = spa_tryimport(tryconfig); 1769168404Spjd 1770168404Spjd nvlist_free(tryconfig); 1771168404Spjd 1772168404Spjd if (config == NULL) 1773249195Smm return (SET_ERROR(EINVAL)); 1774168404Spjd 1775168404Spjd error = put_nvlist(zc, config); 1776168404Spjd nvlist_free(config); 1777168404Spjd 1778168404Spjd return (error); 1779168404Spjd} 1780168404Spjd 1781219089Spjd/* 1782219089Spjd * inputs: 1783219089Spjd * zc_name name of the pool 1784219089Spjd * zc_cookie scan func (pool_scan_func_t) 1785324010Savg * zc_flags scrub pause/resume flag (pool_scrub_cmd_t) 1786219089Spjd */ 1787168404Spjdstatic int 1788219089Spjdzfs_ioc_pool_scan(zfs_cmd_t *zc) 1789168404Spjd{ 1790168404Spjd spa_t *spa; 1791168404Spjd int error; 1792168404Spjd 1793168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1794168404Spjd return (error); 1795168404Spjd 1796324010Savg if (zc->zc_flags >= POOL_SCRUB_FLAGS_END) 1797324010Savg return (SET_ERROR(EINVAL)); 1798324010Savg 1799324010Savg if (zc->zc_flags == POOL_SCRUB_PAUSE) 1800324010Savg error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE); 1801324010Savg else if (zc->zc_cookie == POOL_SCAN_NONE) 1802219089Spjd error = spa_scan_stop(spa); 1803219089Spjd else 1804219089Spjd error = spa_scan(spa, zc->zc_cookie); 1805168404Spjd 1806168404Spjd spa_close(spa, FTAG); 1807168404Spjd 1808168404Spjd return (error); 1809168404Spjd} 1810168404Spjd 1811168404Spjdstatic int 1812168404Spjdzfs_ioc_pool_freeze(zfs_cmd_t *zc) 1813168404Spjd{ 1814168404Spjd spa_t *spa; 1815168404Spjd int error; 1816168404Spjd 1817168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1818168404Spjd if (error == 0) { 1819168404Spjd spa_freeze(spa); 1820168404Spjd spa_close(spa, FTAG); 1821168404Spjd } 1822168404Spjd return (error); 1823168404Spjd} 1824168404Spjd 1825168404Spjdstatic int 1826168404Spjdzfs_ioc_pool_upgrade(zfs_cmd_t *zc) 1827168404Spjd{ 1828168404Spjd spa_t *spa; 1829168404Spjd int error; 1830168404Spjd 1831168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1832168404Spjd return (error); 1833168404Spjd 1834236884Smm if (zc->zc_cookie < spa_version(spa) || 1835236884Smm !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { 1836185029Spjd spa_close(spa, FTAG); 1837249195Smm return (SET_ERROR(EINVAL)); 1838185029Spjd } 1839168404Spjd 1840185029Spjd spa_upgrade(spa, zc->zc_cookie); 1841168404Spjd spa_close(spa, FTAG); 1842168404Spjd 1843168404Spjd return (error); 1844168404Spjd} 1845168404Spjd 1846168404Spjdstatic int 1847168404Spjdzfs_ioc_pool_get_history(zfs_cmd_t *zc) 1848168404Spjd{ 1849168404Spjd spa_t *spa; 1850168404Spjd char *hist_buf; 1851168404Spjd uint64_t size; 1852168404Spjd int error; 1853168404Spjd 1854168404Spjd if ((size = zc->zc_history_len) == 0) 1855249195Smm return (SET_ERROR(EINVAL)); 1856168404Spjd 1857168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1858168404Spjd return (error); 1859168404Spjd 1860185029Spjd if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 1861168404Spjd spa_close(spa, FTAG); 1862249195Smm return (SET_ERROR(ENOTSUP)); 1863168404Spjd } 1864168404Spjd 1865168404Spjd hist_buf = kmem_alloc(size, KM_SLEEP); 1866168404Spjd if ((error = spa_history_get(spa, &zc->zc_history_offset, 1867168404Spjd &zc->zc_history_len, hist_buf)) == 0) { 1868219089Spjd error = ddi_copyout(hist_buf, 1869219089Spjd (void *)(uintptr_t)zc->zc_history, 1870219089Spjd zc->zc_history_len, zc->zc_iflags); 1871168404Spjd } 1872168404Spjd 1873168404Spjd spa_close(spa, FTAG); 1874168404Spjd kmem_free(hist_buf, size); 1875168404Spjd return (error); 1876168404Spjd} 1877168404Spjd 1878168404Spjdstatic int 1879228103Smmzfs_ioc_pool_reguid(zfs_cmd_t *zc) 1880228103Smm{ 1881228103Smm spa_t *spa; 1882228103Smm int error; 1883228103Smm 1884228103Smm error = spa_open(zc->zc_name, &spa, FTAG); 1885228103Smm if (error == 0) { 1886228103Smm error = spa_change_guid(spa); 1887228103Smm spa_close(spa, FTAG); 1888228103Smm } 1889228103Smm return (error); 1890228103Smm} 1891228103Smm 1892228103Smmstatic int 1893168404Spjdzfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) 1894168404Spjd{ 1895248571Smm return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); 1896168404Spjd} 1897168404Spjd 1898219089Spjd/* 1899219089Spjd * inputs: 1900219089Spjd * zc_name name of filesystem 1901219089Spjd * zc_obj object to find 1902219089Spjd * 1903219089Spjd * outputs: 1904219089Spjd * zc_value name of object 1905219089Spjd */ 1906168404Spjdstatic int 1907168404Spjdzfs_ioc_obj_to_path(zfs_cmd_t *zc) 1908168404Spjd{ 1909219089Spjd objset_t *os; 1910168404Spjd int error; 1911168404Spjd 1912219089Spjd /* XXX reading from objset not owned */ 1913219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1914168404Spjd return (error); 1915219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1916219089Spjd dmu_objset_rele(os, FTAG); 1917249195Smm return (SET_ERROR(EINVAL)); 1918219089Spjd } 1919219089Spjd error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, 1920168404Spjd sizeof (zc->zc_value)); 1921219089Spjd dmu_objset_rele(os, FTAG); 1922168404Spjd 1923168404Spjd return (error); 1924168404Spjd} 1925168404Spjd 1926219089Spjd/* 1927219089Spjd * inputs: 1928219089Spjd * zc_name name of filesystem 1929219089Spjd * zc_obj object to find 1930219089Spjd * 1931219089Spjd * outputs: 1932219089Spjd * zc_stat stats on object 1933219089Spjd * zc_value path to object 1934219089Spjd */ 1935168404Spjdstatic int 1936219089Spjdzfs_ioc_obj_to_stats(zfs_cmd_t *zc) 1937219089Spjd{ 1938219089Spjd objset_t *os; 1939219089Spjd int error; 1940219089Spjd 1941219089Spjd /* XXX reading from objset not owned */ 1942219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1943219089Spjd return (error); 1944219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1945219089Spjd dmu_objset_rele(os, FTAG); 1946249195Smm return (SET_ERROR(EINVAL)); 1947219089Spjd } 1948219089Spjd error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, 1949219089Spjd sizeof (zc->zc_value)); 1950219089Spjd dmu_objset_rele(os, FTAG); 1951219089Spjd 1952219089Spjd return (error); 1953219089Spjd} 1954219089Spjd 1955219089Spjdstatic int 1956168404Spjdzfs_ioc_vdev_add(zfs_cmd_t *zc) 1957168404Spjd{ 1958168404Spjd spa_t *spa; 1959168404Spjd int error; 1960185029Spjd nvlist_t *config, **l2cache, **spares; 1961185029Spjd uint_t nl2cache = 0, nspares = 0; 1962168404Spjd 1963168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1964168404Spjd if (error != 0) 1965168404Spjd return (error); 1966168404Spjd 1967185029Spjd error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1968219089Spjd zc->zc_iflags, &config); 1969185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, 1970185029Spjd &l2cache, &nl2cache); 1971185029Spjd 1972185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, 1973185029Spjd &spares, &nspares); 1974185029Spjd 1975254714Savg#ifdef illumos 1976168404Spjd /* 1977168404Spjd * A root pool with concatenated devices is not supported. 1978185029Spjd * Thus, can not add a device to a root pool. 1979185029Spjd * 1980185029Spjd * Intent log device can not be added to a rootpool because 1981185029Spjd * during mountroot, zil is replayed, a seperated log device 1982185029Spjd * can not be accessed during the mountroot time. 1983185029Spjd * 1984185029Spjd * l2cache and spare devices are ok to be added to a rootpool. 1985168404Spjd */ 1986219089Spjd if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { 1987219089Spjd nvlist_free(config); 1988168404Spjd spa_close(spa, FTAG); 1989249195Smm return (SET_ERROR(EDOM)); 1990168404Spjd } 1991254714Savg#endif /* illumos */ 1992168404Spjd 1993185029Spjd if (error == 0) { 1994168404Spjd error = spa_vdev_add(spa, config); 1995168404Spjd nvlist_free(config); 1996168404Spjd } 1997168404Spjd spa_close(spa, FTAG); 1998168404Spjd return (error); 1999168404Spjd} 2000168404Spjd 2001219089Spjd/* 2002219089Spjd * inputs: 2003219089Spjd * zc_name name of the pool 2004332525Smav * zc_guid guid of vdev to remove 2005332525Smav * zc_cookie cancel removal 2006219089Spjd */ 2007168404Spjdstatic int 2008168404Spjdzfs_ioc_vdev_remove(zfs_cmd_t *zc) 2009168404Spjd{ 2010168404Spjd spa_t *spa; 2011168404Spjd int error; 2012168404Spjd 2013168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 2014168404Spjd if (error != 0) 2015168404Spjd return (error); 2016332525Smav if (zc->zc_cookie != 0) { 2017332525Smav error = spa_vdev_remove_cancel(spa); 2018332525Smav } else { 2019332525Smav error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 2020332525Smav } 2021168404Spjd spa_close(spa, FTAG); 2022168404Spjd return (error); 2023168404Spjd} 2024168404Spjd 2025168404Spjdstatic int 2026185029Spjdzfs_ioc_vdev_set_state(zfs_cmd_t *zc) 2027168404Spjd{ 2028168404Spjd spa_t *spa; 2029168404Spjd int error; 2030185029Spjd vdev_state_t newstate = VDEV_STATE_UNKNOWN; 2031168404Spjd 2032168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 2033168404Spjd return (error); 2034185029Spjd switch (zc->zc_cookie) { 2035185029Spjd case VDEV_STATE_ONLINE: 2036185029Spjd error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); 2037185029Spjd break; 2038168404Spjd 2039185029Spjd case VDEV_STATE_OFFLINE: 2040185029Spjd error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); 2041185029Spjd break; 2042168404Spjd 2043185029Spjd case VDEV_STATE_FAULTED: 2044219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 2045219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 2046219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 2047219089Spjd 2048219089Spjd error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); 2049185029Spjd break; 2050185029Spjd 2051185029Spjd case VDEV_STATE_DEGRADED: 2052219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 2053219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 2054219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 2055219089Spjd 2056219089Spjd error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); 2057185029Spjd break; 2058185029Spjd 2059185029Spjd default: 2060249195Smm error = SET_ERROR(EINVAL); 2061185029Spjd } 2062185029Spjd zc->zc_cookie = newstate; 2063168404Spjd spa_close(spa, FTAG); 2064168404Spjd return (error); 2065168404Spjd} 2066168404Spjd 2067168404Spjdstatic int 2068168404Spjdzfs_ioc_vdev_attach(zfs_cmd_t *zc) 2069168404Spjd{ 2070168404Spjd spa_t *spa; 2071168404Spjd int replacing = zc->zc_cookie; 2072168404Spjd nvlist_t *config; 2073168404Spjd int error; 2074168404Spjd 2075168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 2076168404Spjd return (error); 2077168404Spjd 2078185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 2079219089Spjd zc->zc_iflags, &config)) == 0) { 2080168404Spjd error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 2081168404Spjd nvlist_free(config); 2082168404Spjd } 2083168404Spjd 2084168404Spjd spa_close(spa, FTAG); 2085168404Spjd return (error); 2086168404Spjd} 2087168404Spjd 2088168404Spjdstatic int 2089168404Spjdzfs_ioc_vdev_detach(zfs_cmd_t *zc) 2090168404Spjd{ 2091168404Spjd spa_t *spa; 2092168404Spjd int error; 2093168404Spjd 2094168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 2095168404Spjd return (error); 2096168404Spjd 2097209962Smm error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); 2098168404Spjd 2099168404Spjd spa_close(spa, FTAG); 2100168404Spjd return (error); 2101168404Spjd} 2102168404Spjd 2103168404Spjdstatic int 2104219089Spjdzfs_ioc_vdev_split(zfs_cmd_t *zc) 2105219089Spjd{ 2106219089Spjd spa_t *spa; 2107219089Spjd nvlist_t *config, *props = NULL; 2108219089Spjd int error; 2109219089Spjd boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); 2110219089Spjd 2111219089Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 2112219089Spjd return (error); 2113219089Spjd 2114219089Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 2115219089Spjd zc->zc_iflags, &config)) { 2116219089Spjd spa_close(spa, FTAG); 2117219089Spjd return (error); 2118219089Spjd } 2119219089Spjd 2120219089Spjd if (zc->zc_nvlist_src_size != 0 && (error = 2121219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2122219089Spjd zc->zc_iflags, &props))) { 2123219089Spjd spa_close(spa, FTAG); 2124219089Spjd nvlist_free(config); 2125219089Spjd return (error); 2126219089Spjd } 2127219089Spjd 2128219089Spjd error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); 2129219089Spjd 2130219089Spjd spa_close(spa, FTAG); 2131219089Spjd 2132219089Spjd nvlist_free(config); 2133219089Spjd nvlist_free(props); 2134219089Spjd 2135219089Spjd return (error); 2136219089Spjd} 2137219089Spjd 2138219089Spjdstatic int 2139168404Spjdzfs_ioc_vdev_setpath(zfs_cmd_t *zc) 2140168404Spjd{ 2141168404Spjd spa_t *spa; 2142168404Spjd char *path = zc->zc_value; 2143168404Spjd uint64_t guid = zc->zc_guid; 2144168404Spjd int error; 2145168404Spjd 2146168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 2147168404Spjd if (error != 0) 2148168404Spjd return (error); 2149168404Spjd 2150168404Spjd error = spa_vdev_setpath(spa, guid, path); 2151168404Spjd spa_close(spa, FTAG); 2152168404Spjd return (error); 2153168404Spjd} 2154168404Spjd 2155209962Smmstatic int 2156209962Smmzfs_ioc_vdev_setfru(zfs_cmd_t *zc) 2157209962Smm{ 2158209962Smm spa_t *spa; 2159209962Smm char *fru = zc->zc_value; 2160209962Smm uint64_t guid = zc->zc_guid; 2161209962Smm int error; 2162209962Smm 2163209962Smm error = spa_open(zc->zc_name, &spa, FTAG); 2164209962Smm if (error != 0) 2165209962Smm return (error); 2166209962Smm 2167209962Smm error = spa_vdev_setfru(spa, guid, fru); 2168209962Smm spa_close(spa, FTAG); 2169209962Smm return (error); 2170209962Smm} 2171209962Smm 2172219089Spjdstatic int 2173219089Spjdzfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) 2174219089Spjd{ 2175219089Spjd int error = 0; 2176219089Spjd nvlist_t *nv; 2177219089Spjd 2178219089Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2179219089Spjd 2180219089Spjd if (zc->zc_nvlist_dst != 0 && 2181219089Spjd (error = dsl_prop_get_all(os, &nv)) == 0) { 2182219089Spjd dmu_objset_stats(os, nv); 2183219089Spjd /* 2184219089Spjd * NB: zvol_get_stats() will read the objset contents, 2185219089Spjd * which we aren't supposed to do with a 2186219089Spjd * DS_MODE_USER hold, because it could be 2187219089Spjd * inconsistent. So this is a bit of a workaround... 2188219089Spjd * XXX reading with out owning 2189219089Spjd */ 2190228103Smm if (!zc->zc_objset_stats.dds_inconsistent && 2191228103Smm dmu_objset_type(os) == DMU_OST_ZVOL) { 2192228103Smm error = zvol_get_stats(os, nv); 2193228103Smm if (error == EIO) 2194228103Smm return (error); 2195240415Smm VERIFY0(error); 2196219089Spjd } 2197219089Spjd error = put_nvlist(zc, nv); 2198219089Spjd nvlist_free(nv); 2199219089Spjd } 2200219089Spjd 2201219089Spjd return (error); 2202219089Spjd} 2203219089Spjd 2204185029Spjd/* 2205185029Spjd * inputs: 2206185029Spjd * zc_name name of filesystem 2207185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2208185029Spjd * 2209185029Spjd * outputs: 2210185029Spjd * zc_objset_stats stats 2211185029Spjd * zc_nvlist_dst property nvlist 2212185029Spjd * zc_nvlist_dst_size size of property nvlist 2213185029Spjd */ 2214168404Spjdstatic int 2215168404Spjdzfs_ioc_objset_stats(zfs_cmd_t *zc) 2216168404Spjd{ 2217248571Smm objset_t *os; 2218168404Spjd int error; 2219219089Spjd 2220248571Smm error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2221248571Smm if (error == 0) { 2222248571Smm error = zfs_ioc_objset_stats_impl(zc, os); 2223248571Smm dmu_objset_rele(os, FTAG); 2224248571Smm } 2225219089Spjd 2226219089Spjd if (error == ENOMEM) 2227219089Spjd error = 0; 2228219089Spjd return (error); 2229219089Spjd} 2230219089Spjd 2231219089Spjd/* 2232219089Spjd * inputs: 2233219089Spjd * zc_name name of filesystem 2234219089Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2235219089Spjd * 2236219089Spjd * outputs: 2237219089Spjd * zc_nvlist_dst received property nvlist 2238219089Spjd * zc_nvlist_dst_size size of received property nvlist 2239219089Spjd * 2240219089Spjd * Gets received properties (distinct from local properties on or after 2241219089Spjd * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from 2242219089Spjd * local property values. 2243219089Spjd */ 2244219089Spjdstatic int 2245219089Spjdzfs_ioc_objset_recvd_props(zfs_cmd_t *zc) 2246219089Spjd{ 2247248571Smm int error = 0; 2248168404Spjd nvlist_t *nv; 2249168404Spjd 2250219089Spjd /* 2251219089Spjd * Without this check, we would return local property values if the 2252219089Spjd * caller has not already received properties on or after 2253219089Spjd * SPA_VERSION_RECVD_PROPS. 2254219089Spjd */ 2255248571Smm if (!dsl_prop_get_hasrecvd(zc->zc_name)) 2256249195Smm return (SET_ERROR(ENOTSUP)); 2257168404Spjd 2258168404Spjd if (zc->zc_nvlist_dst != 0 && 2259248571Smm (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { 2260168404Spjd error = put_nvlist(zc, nv); 2261168404Spjd nvlist_free(nv); 2262168404Spjd } 2263168404Spjd 2264168404Spjd return (error); 2265168404Spjd} 2266168404Spjd 2267168404Spjdstatic int 2268185029Spjdnvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) 2269185029Spjd{ 2270185029Spjd uint64_t value; 2271185029Spjd int error; 2272185029Spjd 2273185029Spjd /* 2274185029Spjd * zfs_get_zplprop() will either find a value or give us 2275185029Spjd * the default value (if there is one). 2276185029Spjd */ 2277185029Spjd if ((error = zfs_get_zplprop(os, prop, &value)) != 0) 2278185029Spjd return (error); 2279185029Spjd VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); 2280185029Spjd return (0); 2281185029Spjd} 2282185029Spjd 2283185029Spjd/* 2284185029Spjd * inputs: 2285185029Spjd * zc_name name of filesystem 2286185029Spjd * zc_nvlist_dst_size size of buffer for zpl property nvlist 2287185029Spjd * 2288185029Spjd * outputs: 2289185029Spjd * zc_nvlist_dst zpl property nvlist 2290185029Spjd * zc_nvlist_dst_size size of zpl property nvlist 2291185029Spjd */ 2292185029Spjdstatic int 2293185029Spjdzfs_ioc_objset_zplprops(zfs_cmd_t *zc) 2294185029Spjd{ 2295185029Spjd objset_t *os; 2296185029Spjd int err; 2297185029Spjd 2298219089Spjd /* XXX reading without owning */ 2299219089Spjd if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) 2300185029Spjd return (err); 2301185029Spjd 2302185029Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2303185029Spjd 2304185029Spjd /* 2305185029Spjd * NB: nvl_add_zplprop() will read the objset contents, 2306185029Spjd * which we aren't supposed to do with a DS_MODE_USER 2307185029Spjd * hold, because it could be inconsistent. 2308185029Spjd */ 2309185029Spjd if (zc->zc_nvlist_dst != 0 && 2310185029Spjd !zc->zc_objset_stats.dds_inconsistent && 2311185029Spjd dmu_objset_type(os) == DMU_OST_ZFS) { 2312185029Spjd nvlist_t *nv; 2313185029Spjd 2314185029Spjd VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2315185029Spjd if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && 2316185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && 2317185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && 2318185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) 2319185029Spjd err = put_nvlist(zc, nv); 2320185029Spjd nvlist_free(nv); 2321185029Spjd } else { 2322249195Smm err = SET_ERROR(ENOENT); 2323185029Spjd } 2324219089Spjd dmu_objset_rele(os, FTAG); 2325185029Spjd return (err); 2326185029Spjd} 2327185029Spjd 2328219089Spjdboolean_t 2329209962Smmdataset_name_hidden(const char *name) 2330209962Smm{ 2331209962Smm /* 2332209962Smm * Skip over datasets that are not visible in this zone, 2333209962Smm * internal datasets (which have a $ in their name), and 2334209962Smm * temporary datasets (which have a % in their name). 2335209962Smm */ 2336209962Smm if (strchr(name, '$') != NULL) 2337209962Smm return (B_TRUE); 2338209962Smm if (strchr(name, '%') != NULL) 2339209962Smm return (B_TRUE); 2340209962Smm if (!INGLOBALZONE(curthread) && !zone_dataset_visible(name, NULL)) 2341209962Smm return (B_TRUE); 2342209962Smm return (B_FALSE); 2343209962Smm} 2344209962Smm 2345185029Spjd/* 2346185029Spjd * inputs: 2347185029Spjd * zc_name name of filesystem 2348185029Spjd * zc_cookie zap cursor 2349185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2350185029Spjd * 2351185029Spjd * outputs: 2352185029Spjd * zc_name name of next filesystem 2353209962Smm * zc_cookie zap cursor 2354185029Spjd * zc_objset_stats stats 2355185029Spjd * zc_nvlist_dst property nvlist 2356185029Spjd * zc_nvlist_dst_size size of property nvlist 2357185029Spjd */ 2358185029Spjdstatic int 2359168404Spjdzfs_ioc_dataset_list_next(zfs_cmd_t *zc) 2360168404Spjd{ 2361168404Spjd objset_t *os; 2362168404Spjd int error; 2363168404Spjd char *p; 2364219089Spjd size_t orig_len = strlen(zc->zc_name); 2365168404Spjd 2366219089Spjdtop: 2367219089Spjd if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { 2368168404Spjd if (error == ENOENT) 2369249195Smm error = SET_ERROR(ESRCH); 2370168404Spjd return (error); 2371168404Spjd } 2372168404Spjd 2373168404Spjd p = strrchr(zc->zc_name, '/'); 2374168404Spjd if (p == NULL || p[1] != '\0') 2375168404Spjd (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 2376168404Spjd p = zc->zc_name + strlen(zc->zc_name); 2377168404Spjd 2378168404Spjd do { 2379168404Spjd error = dmu_dir_list_next(os, 2380168404Spjd sizeof (zc->zc_name) - (p - zc->zc_name), p, 2381168404Spjd NULL, &zc->zc_cookie); 2382168404Spjd if (error == ENOENT) 2383249195Smm error = SET_ERROR(ESRCH); 2384228103Smm } while (error == 0 && dataset_name_hidden(zc->zc_name)); 2385219089Spjd dmu_objset_rele(os, FTAG); 2386168404Spjd 2387219089Spjd /* 2388219089Spjd * If it's an internal dataset (ie. with a '$' in its name), 2389219089Spjd * don't try to get stats for it, otherwise we'll return ENOENT. 2390219089Spjd */ 2391219089Spjd if (error == 0 && strchr(zc->zc_name, '$') == NULL) { 2392168404Spjd error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 2393219089Spjd if (error == ENOENT) { 2394219089Spjd /* We lost a race with destroy, get the next one. */ 2395219089Spjd zc->zc_name[orig_len] = '\0'; 2396219089Spjd goto top; 2397219089Spjd } 2398219089Spjd } 2399168404Spjd return (error); 2400168404Spjd} 2401168404Spjd 2402185029Spjd/* 2403185029Spjd * inputs: 2404185029Spjd * zc_name name of filesystem 2405185029Spjd * zc_cookie zap cursor 2406185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2407230438Spjd * zc_simple when set, only name is requested 2408185029Spjd * 2409185029Spjd * outputs: 2410185029Spjd * zc_name name of next snapshot 2411185029Spjd * zc_objset_stats stats 2412185029Spjd * zc_nvlist_dst property nvlist 2413185029Spjd * zc_nvlist_dst_size size of property nvlist 2414185029Spjd */ 2415168404Spjdstatic int 2416168404Spjdzfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 2417168404Spjd{ 2418168404Spjd objset_t *os; 2419168404Spjd int error; 2420168404Spjd 2421219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2422248571Smm if (error != 0) { 2423185029Spjd return (error == ENOENT ? ESRCH : error); 2424248571Smm } 2425168404Spjd 2426168404Spjd /* 2427168404Spjd * A dataset name of maximum length cannot have any snapshots, 2428168404Spjd * so exit immediately. 2429168404Spjd */ 2430307108Smav if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= 2431307108Smav ZFS_MAX_DATASET_NAME_LEN) { 2432219089Spjd dmu_objset_rele(os, FTAG); 2433249195Smm return (SET_ERROR(ESRCH)); 2434168404Spjd } 2435168404Spjd 2436168404Spjd error = dmu_snapshot_list_next(os, 2437168404Spjd sizeof (zc->zc_name) - strlen(zc->zc_name), 2438219089Spjd zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, 2439219089Spjd NULL); 2440219089Spjd 2441230438Spjd if (error == 0 && !zc->zc_simple) { 2442219089Spjd dsl_dataset_t *ds; 2443219089Spjd dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; 2444219089Spjd 2445219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); 2446248571Smm if (error == 0) { 2447219089Spjd objset_t *ossnap; 2448219089Spjd 2449219089Spjd error = dmu_objset_from_ds(ds, &ossnap); 2450219089Spjd if (error == 0) 2451219089Spjd error = zfs_ioc_objset_stats_impl(zc, ossnap); 2452219089Spjd dsl_dataset_rele(ds, FTAG); 2453219089Spjd } 2454219089Spjd } else if (error == ENOENT) { 2455249195Smm error = SET_ERROR(ESRCH); 2456219089Spjd } 2457168404Spjd 2458219089Spjd dmu_objset_rele(os, FTAG); 2459185029Spjd /* if we failed, undo the @ that we tacked on to zc_name */ 2460248571Smm if (error != 0) 2461185029Spjd *strchr(zc->zc_name, '@') = '\0'; 2462168404Spjd return (error); 2463168404Spjd} 2464168404Spjd 2465219089Spjdstatic int 2466219089Spjdzfs_prop_set_userquota(const char *dsname, nvpair_t *pair) 2467168404Spjd{ 2468219089Spjd const char *propname = nvpair_name(pair); 2469219089Spjd uint64_t *valary; 2470219089Spjd unsigned int vallen; 2471219089Spjd const char *domain; 2472219089Spjd char *dash; 2473219089Spjd zfs_userquota_prop_t type; 2474219089Spjd uint64_t rid; 2475219089Spjd uint64_t quota; 2476219089Spjd zfsvfs_t *zfsvfs; 2477219089Spjd int err; 2478168404Spjd 2479219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2480219089Spjd nvlist_t *attrs; 2481219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2482219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2483219089Spjd &pair) != 0) 2484249195Smm return (SET_ERROR(EINVAL)); 2485219089Spjd } 2486219089Spjd 2487185029Spjd /* 2488219089Spjd * A correctly constructed propname is encoded as 2489219089Spjd * userquota@<rid>-<domain>. 2490185029Spjd */ 2491219089Spjd if ((dash = strchr(propname, '-')) == NULL || 2492219089Spjd nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || 2493219089Spjd vallen != 3) 2494249195Smm return (SET_ERROR(EINVAL)); 2495168404Spjd 2496219089Spjd domain = dash + 1; 2497219089Spjd type = valary[0]; 2498219089Spjd rid = valary[1]; 2499219089Spjd quota = valary[2]; 2500168404Spjd 2501219089Spjd err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); 2502219089Spjd if (err == 0) { 2503219089Spjd err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); 2504219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2505219089Spjd } 2506209962Smm 2507219089Spjd return (err); 2508219089Spjd} 2509168404Spjd 2510219089Spjd/* 2511219089Spjd * If the named property is one that has a special function to set its value, 2512219089Spjd * return 0 on success and a positive error code on failure; otherwise if it is 2513219089Spjd * not one of the special properties handled by this function, return -1. 2514219089Spjd * 2515219089Spjd * XXX: It would be better for callers of the property interface if we handled 2516219089Spjd * these special cases in dsl_prop.c (in the dsl layer). 2517219089Spjd */ 2518219089Spjdstatic int 2519219089Spjdzfs_prop_set_special(const char *dsname, zprop_source_t source, 2520219089Spjd nvpair_t *pair) 2521219089Spjd{ 2522219089Spjd const char *propname = nvpair_name(pair); 2523219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2524219089Spjd uint64_t intval; 2525274337Sdelphij int err = -1; 2526209962Smm 2527219089Spjd if (prop == ZPROP_INVAL) { 2528219089Spjd if (zfs_prop_userquota(propname)) 2529219089Spjd return (zfs_prop_set_userquota(dsname, pair)); 2530219089Spjd return (-1); 2531219089Spjd } 2532185029Spjd 2533219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2534219089Spjd nvlist_t *attrs; 2535219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2536219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2537219089Spjd &pair) == 0); 2538219089Spjd } 2539168404Spjd 2540219089Spjd if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) 2541219089Spjd return (-1); 2542185029Spjd 2543219089Spjd VERIFY(0 == nvpair_value_uint64(pair, &intval)); 2544185029Spjd 2545219089Spjd switch (prop) { 2546219089Spjd case ZFS_PROP_QUOTA: 2547219089Spjd err = dsl_dir_set_quota(dsname, source, intval); 2548219089Spjd break; 2549219089Spjd case ZFS_PROP_REFQUOTA: 2550248571Smm err = dsl_dataset_set_refquota(dsname, source, intval); 2551219089Spjd break; 2552264835Sdelphij case ZFS_PROP_FILESYSTEM_LIMIT: 2553264835Sdelphij case ZFS_PROP_SNAPSHOT_LIMIT: 2554264835Sdelphij if (intval == UINT64_MAX) { 2555264835Sdelphij /* clearing the limit, just do it */ 2556264835Sdelphij err = 0; 2557264835Sdelphij } else { 2558264835Sdelphij err = dsl_dir_activate_fs_ss_limit(dsname); 2559264835Sdelphij } 2560264835Sdelphij /* 2561264835Sdelphij * Set err to -1 to force the zfs_set_prop_nvlist code down the 2562264835Sdelphij * default path to set the value in the nvlist. 2563264835Sdelphij */ 2564264835Sdelphij if (err == 0) 2565264835Sdelphij err = -1; 2566264835Sdelphij break; 2567219089Spjd case ZFS_PROP_RESERVATION: 2568219089Spjd err = dsl_dir_set_reservation(dsname, source, intval); 2569219089Spjd break; 2570219089Spjd case ZFS_PROP_REFRESERVATION: 2571248571Smm err = dsl_dataset_set_refreservation(dsname, source, intval); 2572219089Spjd break; 2573219089Spjd case ZFS_PROP_VOLSIZE: 2574276069Ssmh err = zvol_set_volsize(dsname, intval); 2575219089Spjd break; 2576219089Spjd case ZFS_PROP_VERSION: 2577219089Spjd { 2578219089Spjd zfsvfs_t *zfsvfs; 2579219089Spjd 2580219089Spjd if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) 2581185029Spjd break; 2582201143Sdelphij 2583219089Spjd err = zfs_set_version(zfsvfs, intval); 2584219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2585168404Spjd 2586219089Spjd if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { 2587219089Spjd zfs_cmd_t *zc; 2588185029Spjd 2589219089Spjd zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 2590219089Spjd (void) strcpy(zc->zc_name, dsname); 2591219089Spjd (void) zfs_ioc_userspace_upgrade(zc); 2592219089Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 2593185029Spjd } 2594219089Spjd break; 2595219089Spjd } 2596219089Spjd default: 2597219089Spjd err = -1; 2598219089Spjd } 2599168404Spjd 2600219089Spjd return (err); 2601219089Spjd} 2602185029Spjd 2603219089Spjd/* 2604219089Spjd * This function is best effort. If it fails to set any of the given properties, 2605248571Smm * it continues to set as many as it can and returns the last error 2606248571Smm * encountered. If the caller provides a non-NULL errlist, it will be filled in 2607248571Smm * with the list of names of all the properties that failed along with the 2608248571Smm * corresponding error numbers. 2609219089Spjd * 2610248571Smm * If every property is set successfully, zero is returned and errlist is not 2611248571Smm * modified. 2612219089Spjd */ 2613219089Spjdint 2614219089Spjdzfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, 2615248571Smm nvlist_t *errlist) 2616219089Spjd{ 2617219089Spjd nvpair_t *pair; 2618219089Spjd nvpair_t *propval; 2619219089Spjd int rv = 0; 2620219089Spjd uint64_t intval; 2621219089Spjd char *strval; 2622248571Smm nvlist_t *genericnvl = fnvlist_alloc(); 2623248571Smm nvlist_t *retrynvl = fnvlist_alloc(); 2624168404Spjd 2625219089Spjdretry: 2626219089Spjd pair = NULL; 2627219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2628219089Spjd const char *propname = nvpair_name(pair); 2629219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2630219089Spjd int err = 0; 2631185029Spjd 2632219089Spjd /* decode the property value */ 2633219089Spjd propval = pair; 2634219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2635219089Spjd nvlist_t *attrs; 2636248571Smm attrs = fnvpair_value_nvlist(pair); 2637219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2638219089Spjd &propval) != 0) 2639249195Smm err = SET_ERROR(EINVAL); 2640219089Spjd } 2641168404Spjd 2642219089Spjd /* Validate value type */ 2643219089Spjd if (err == 0 && prop == ZPROP_INVAL) { 2644219089Spjd if (zfs_prop_user(propname)) { 2645219089Spjd if (nvpair_type(propval) != DATA_TYPE_STRING) 2646249195Smm err = SET_ERROR(EINVAL); 2647219089Spjd } else if (zfs_prop_userquota(propname)) { 2648219089Spjd if (nvpair_type(propval) != 2649219089Spjd DATA_TYPE_UINT64_ARRAY) 2650249195Smm err = SET_ERROR(EINVAL); 2651228103Smm } else { 2652249195Smm err = SET_ERROR(EINVAL); 2653209962Smm } 2654219089Spjd } else if (err == 0) { 2655219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2656219089Spjd if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) 2657249195Smm err = SET_ERROR(EINVAL); 2658219089Spjd } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { 2659168404Spjd const char *unused; 2660168404Spjd 2661248571Smm intval = fnvpair_value_uint64(propval); 2662168404Spjd 2663168404Spjd switch (zfs_prop_get_type(prop)) { 2664185029Spjd case PROP_TYPE_NUMBER: 2665168404Spjd break; 2666185029Spjd case PROP_TYPE_STRING: 2667249195Smm err = SET_ERROR(EINVAL); 2668219089Spjd break; 2669185029Spjd case PROP_TYPE_INDEX: 2670168404Spjd if (zfs_prop_index_to_string(prop, 2671219089Spjd intval, &unused) != 0) 2672249195Smm err = SET_ERROR(EINVAL); 2673168404Spjd break; 2674168404Spjd default: 2675185029Spjd cmn_err(CE_PANIC, 2676185029Spjd "unknown property type"); 2677168404Spjd } 2678168404Spjd } else { 2679249195Smm err = SET_ERROR(EINVAL); 2680168404Spjd } 2681168404Spjd } 2682219089Spjd 2683219089Spjd /* Validate permissions */ 2684219089Spjd if (err == 0) 2685219089Spjd err = zfs_check_settable(dsname, pair, CRED()); 2686219089Spjd 2687219089Spjd if (err == 0) { 2688219089Spjd err = zfs_prop_set_special(dsname, source, pair); 2689219089Spjd if (err == -1) { 2690219089Spjd /* 2691219089Spjd * For better performance we build up a list of 2692219089Spjd * properties to set in a single transaction. 2693219089Spjd */ 2694219089Spjd err = nvlist_add_nvpair(genericnvl, pair); 2695219089Spjd } else if (err != 0 && nvl != retrynvl) { 2696219089Spjd /* 2697219089Spjd * This may be a spurious error caused by 2698219089Spjd * receiving quota and reservation out of order. 2699219089Spjd * Try again in a second pass. 2700219089Spjd */ 2701219089Spjd err = nvlist_add_nvpair(retrynvl, pair); 2702219089Spjd } 2703219089Spjd } 2704219089Spjd 2705248571Smm if (err != 0) { 2706248571Smm if (errlist != NULL) 2707248571Smm fnvlist_add_int32(errlist, propname, err); 2708248571Smm rv = err; 2709248571Smm } 2710168404Spjd } 2711168404Spjd 2712219089Spjd if (nvl != retrynvl && !nvlist_empty(retrynvl)) { 2713219089Spjd nvl = retrynvl; 2714219089Spjd goto retry; 2715209962Smm } 2716219089Spjd 2717219089Spjd if (!nvlist_empty(genericnvl) && 2718219089Spjd dsl_props_set(dsname, source, genericnvl) != 0) { 2719219089Spjd /* 2720219089Spjd * If this fails, we still want to set as many properties as we 2721219089Spjd * can, so try setting them individually. 2722219089Spjd */ 2723219089Spjd pair = NULL; 2724219089Spjd while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { 2725219089Spjd const char *propname = nvpair_name(pair); 2726219089Spjd int err = 0; 2727219089Spjd 2728219089Spjd propval = pair; 2729219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2730219089Spjd nvlist_t *attrs; 2731248571Smm attrs = fnvpair_value_nvlist(pair); 2732248571Smm propval = fnvlist_lookup_nvpair(attrs, 2733248571Smm ZPROP_VALUE); 2734219089Spjd } 2735219089Spjd 2736219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2737248571Smm strval = fnvpair_value_string(propval); 2738248571Smm err = dsl_prop_set_string(dsname, propname, 2739248571Smm source, strval); 2740219089Spjd } else { 2741248571Smm intval = fnvpair_value_uint64(propval); 2742248571Smm err = dsl_prop_set_int(dsname, propname, source, 2743248571Smm intval); 2744219089Spjd } 2745219089Spjd 2746219089Spjd if (err != 0) { 2747248571Smm if (errlist != NULL) { 2748248571Smm fnvlist_add_int32(errlist, propname, 2749248571Smm err); 2750248571Smm } 2751248571Smm rv = err; 2752219089Spjd } 2753219089Spjd } 2754219089Spjd } 2755209962Smm nvlist_free(genericnvl); 2756219089Spjd nvlist_free(retrynvl); 2757219089Spjd 2758219089Spjd return (rv); 2759209962Smm} 2760209962Smm 2761209962Smm/* 2762209962Smm * Check that all the properties are valid user properties. 2763209962Smm */ 2764209962Smmstatic int 2765351933Savgzfs_check_userprops(nvlist_t *nvl) 2766209962Smm{ 2767219089Spjd nvpair_t *pair = NULL; 2768209962Smm 2769219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2770219089Spjd const char *propname = nvpair_name(pair); 2771209962Smm 2772209962Smm if (!zfs_prop_user(propname) || 2773219089Spjd nvpair_type(pair) != DATA_TYPE_STRING) 2774249195Smm return (SET_ERROR(EINVAL)); 2775209962Smm 2776209962Smm if (strlen(propname) >= ZAP_MAXNAMELEN) 2777249195Smm return (SET_ERROR(ENAMETOOLONG)); 2778209962Smm 2779260183Sdelphij if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) 2780209962Smm return (E2BIG); 2781209962Smm } 2782168404Spjd return (0); 2783168404Spjd} 2784168404Spjd 2785219089Spjdstatic void 2786219089Spjdprops_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) 2787219089Spjd{ 2788219089Spjd nvpair_t *pair; 2789219089Spjd 2790219089Spjd VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2791219089Spjd 2792219089Spjd pair = NULL; 2793219089Spjd while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { 2794219089Spjd if (nvlist_exists(skipped, nvpair_name(pair))) 2795219089Spjd continue; 2796219089Spjd 2797219089Spjd VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); 2798219089Spjd } 2799219089Spjd} 2800219089Spjd 2801219089Spjdstatic int 2802248571Smmclear_received_props(const char *dsname, nvlist_t *props, 2803219089Spjd nvlist_t *skipped) 2804219089Spjd{ 2805219089Spjd int err = 0; 2806219089Spjd nvlist_t *cleared_props = NULL; 2807219089Spjd props_skip(props, skipped, &cleared_props); 2808219089Spjd if (!nvlist_empty(cleared_props)) { 2809219089Spjd /* 2810219089Spjd * Acts on local properties until the dataset has received 2811219089Spjd * properties at least once on or after SPA_VERSION_RECVD_PROPS. 2812219089Spjd */ 2813219089Spjd zprop_source_t flags = (ZPROP_SRC_NONE | 2814248571Smm (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); 2815248571Smm err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); 2816219089Spjd } 2817219089Spjd nvlist_free(cleared_props); 2818219089Spjd return (err); 2819219089Spjd} 2820219089Spjd 2821185029Spjd/* 2822185029Spjd * inputs: 2823185029Spjd * zc_name name of filesystem 2824209962Smm * zc_value name of property to set 2825185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 2826219089Spjd * zc_cookie received properties flag 2827185029Spjd * 2828219089Spjd * outputs: 2829219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 2830185029Spjd */ 2831168404Spjdstatic int 2832168404Spjdzfs_ioc_set_prop(zfs_cmd_t *zc) 2833168404Spjd{ 2834168404Spjd nvlist_t *nvl; 2835219089Spjd boolean_t received = zc->zc_cookie; 2836219089Spjd zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : 2837219089Spjd ZPROP_SRC_LOCAL); 2838248571Smm nvlist_t *errors; 2839168404Spjd int error; 2840168404Spjd 2841185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2842219089Spjd zc->zc_iflags, &nvl)) != 0) 2843185029Spjd return (error); 2844168404Spjd 2845219089Spjd if (received) { 2846185029Spjd nvlist_t *origprops; 2847185029Spjd 2848248571Smm if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { 2849248571Smm (void) clear_received_props(zc->zc_name, 2850248571Smm origprops, nvl); 2851248571Smm nvlist_free(origprops); 2852248571Smm } 2853219089Spjd 2854248571Smm error = dsl_prop_set_hasrecvd(zc->zc_name); 2855219089Spjd } 2856185029Spjd 2857248571Smm errors = fnvlist_alloc(); 2858248571Smm if (error == 0) 2859248571Smm error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); 2860219089Spjd 2861219089Spjd if (zc->zc_nvlist_dst != 0 && errors != NULL) { 2862219089Spjd (void) put_nvlist(zc, errors); 2863168404Spjd } 2864168404Spjd 2865219089Spjd nvlist_free(errors); 2866168404Spjd nvlist_free(nvl); 2867168404Spjd return (error); 2868168404Spjd} 2869168404Spjd 2870185029Spjd/* 2871185029Spjd * inputs: 2872185029Spjd * zc_name name of filesystem 2873185029Spjd * zc_value name of property to inherit 2874219089Spjd * zc_cookie revert to received value if TRUE 2875185029Spjd * 2876185029Spjd * outputs: none 2877185029Spjd */ 2878168404Spjdstatic int 2879185029Spjdzfs_ioc_inherit_prop(zfs_cmd_t *zc) 2880185029Spjd{ 2881219089Spjd const char *propname = zc->zc_value; 2882219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2883219089Spjd boolean_t received = zc->zc_cookie; 2884219089Spjd zprop_source_t source = (received 2885219089Spjd ? ZPROP_SRC_NONE /* revert to received value, if any */ 2886219089Spjd : ZPROP_SRC_INHERITED); /* explicitly inherit */ 2887219089Spjd 2888219089Spjd if (received) { 2889219089Spjd nvlist_t *dummy; 2890219089Spjd nvpair_t *pair; 2891219089Spjd zprop_type_t type; 2892219089Spjd int err; 2893219089Spjd 2894219089Spjd /* 2895219089Spjd * zfs_prop_set_special() expects properties in the form of an 2896219089Spjd * nvpair with type info. 2897219089Spjd */ 2898219089Spjd if (prop == ZPROP_INVAL) { 2899219089Spjd if (!zfs_prop_user(propname)) 2900249195Smm return (SET_ERROR(EINVAL)); 2901219089Spjd 2902219089Spjd type = PROP_TYPE_STRING; 2903219089Spjd } else if (prop == ZFS_PROP_VOLSIZE || 2904219089Spjd prop == ZFS_PROP_VERSION) { 2905249195Smm return (SET_ERROR(EINVAL)); 2906219089Spjd } else { 2907219089Spjd type = zfs_prop_get_type(prop); 2908219089Spjd } 2909219089Spjd 2910219089Spjd VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2911219089Spjd 2912219089Spjd switch (type) { 2913219089Spjd case PROP_TYPE_STRING: 2914219089Spjd VERIFY(0 == nvlist_add_string(dummy, propname, "")); 2915219089Spjd break; 2916219089Spjd case PROP_TYPE_NUMBER: 2917219089Spjd case PROP_TYPE_INDEX: 2918219089Spjd VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); 2919219089Spjd break; 2920219089Spjd default: 2921219089Spjd nvlist_free(dummy); 2922249195Smm return (SET_ERROR(EINVAL)); 2923219089Spjd } 2924219089Spjd 2925219089Spjd pair = nvlist_next_nvpair(dummy, NULL); 2926219089Spjd err = zfs_prop_set_special(zc->zc_name, source, pair); 2927219089Spjd nvlist_free(dummy); 2928219089Spjd if (err != -1) 2929219089Spjd return (err); /* special property already handled */ 2930219089Spjd } else { 2931219089Spjd /* 2932219089Spjd * Only check this in the non-received case. We want to allow 2933219089Spjd * 'inherit -S' to revert non-inheritable properties like quota 2934219089Spjd * and reservation to the received or default values even though 2935219089Spjd * they are not considered inheritable. 2936219089Spjd */ 2937219089Spjd if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) 2938249195Smm return (SET_ERROR(EINVAL)); 2939219089Spjd } 2940219089Spjd 2941248571Smm /* property name has been validated by zfs_secpolicy_inherit_prop() */ 2942248571Smm return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); 2943185029Spjd} 2944185029Spjd 2945185029Spjdstatic int 2946169055Spjdzfs_ioc_pool_set_props(zfs_cmd_t *zc) 2947168404Spjd{ 2948185029Spjd nvlist_t *props; 2949168404Spjd spa_t *spa; 2950185029Spjd int error; 2951219089Spjd nvpair_t *pair; 2952168404Spjd 2953219089Spjd if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2954219089Spjd zc->zc_iflags, &props)) 2955168404Spjd return (error); 2956168404Spjd 2957209962Smm /* 2958209962Smm * If the only property is the configfile, then just do a spa_lookup() 2959209962Smm * to handle the faulted case. 2960209962Smm */ 2961219089Spjd pair = nvlist_next_nvpair(props, NULL); 2962219089Spjd if (pair != NULL && strcmp(nvpair_name(pair), 2963209962Smm zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && 2964219089Spjd nvlist_next_nvpair(props, pair) == NULL) { 2965209962Smm mutex_enter(&spa_namespace_lock); 2966209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) { 2967209962Smm spa_configfile_set(spa, props, B_FALSE); 2968332525Smav spa_write_cachefile(spa, B_FALSE, B_TRUE); 2969209962Smm } 2970209962Smm mutex_exit(&spa_namespace_lock); 2971219089Spjd if (spa != NULL) { 2972219089Spjd nvlist_free(props); 2973209962Smm return (0); 2974219089Spjd } 2975209962Smm } 2976209962Smm 2977168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2978185029Spjd nvlist_free(props); 2979168404Spjd return (error); 2980168404Spjd } 2981168404Spjd 2982185029Spjd error = spa_prop_set(spa, props); 2983168404Spjd 2984185029Spjd nvlist_free(props); 2985168404Spjd spa_close(spa, FTAG); 2986168404Spjd 2987168404Spjd return (error); 2988168404Spjd} 2989168404Spjd 2990168404Spjdstatic int 2991169055Spjdzfs_ioc_pool_get_props(zfs_cmd_t *zc) 2992168404Spjd{ 2993168404Spjd spa_t *spa; 2994168404Spjd int error; 2995168404Spjd nvlist_t *nvp = NULL; 2996168404Spjd 2997209962Smm if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2998209962Smm /* 2999209962Smm * If the pool is faulted, there may be properties we can still 3000209962Smm * get (such as altroot and cachefile), so attempt to get them 3001209962Smm * anyway. 3002209962Smm */ 3003209962Smm mutex_enter(&spa_namespace_lock); 3004209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) 3005209962Smm error = spa_prop_get(spa, &nvp); 3006209962Smm mutex_exit(&spa_namespace_lock); 3007209962Smm } else { 3008209962Smm error = spa_prop_get(spa, &nvp); 3009209962Smm spa_close(spa, FTAG); 3010209962Smm } 3011168404Spjd 3012168404Spjd if (error == 0 && zc->zc_nvlist_dst != 0) 3013168404Spjd error = put_nvlist(zc, nvp); 3014168404Spjd else 3015249195Smm error = SET_ERROR(EFAULT); 3016168404Spjd 3017209962Smm nvlist_free(nvp); 3018168404Spjd return (error); 3019168404Spjd} 3020168404Spjd 3021185029Spjd/* 3022185029Spjd * inputs: 3023185029Spjd * zc_name name of filesystem 3024185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 3025185029Spjd * zc_perm_action allow/unallow flag 3026185029Spjd * 3027185029Spjd * outputs: none 3028185029Spjd */ 3029185029Spjdstatic int 3030185029Spjdzfs_ioc_set_fsacl(zfs_cmd_t *zc) 3031185029Spjd{ 3032185029Spjd int error; 3033185029Spjd nvlist_t *fsaclnv = NULL; 3034185029Spjd 3035185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 3036219089Spjd zc->zc_iflags, &fsaclnv)) != 0) 3037185029Spjd return (error); 3038185029Spjd 3039185029Spjd /* 3040185029Spjd * Verify nvlist is constructed correctly 3041185029Spjd */ 3042185029Spjd if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { 3043185029Spjd nvlist_free(fsaclnv); 3044249195Smm return (SET_ERROR(EINVAL)); 3045185029Spjd } 3046185029Spjd 3047185029Spjd /* 3048185029Spjd * If we don't have PRIV_SYS_MOUNT, then validate 3049185029Spjd * that user is allowed to hand out each permission in 3050185029Spjd * the nvlist(s) 3051185029Spjd */ 3052185029Spjd 3053185029Spjd error = secpolicy_zfs(CRED()); 3054248571Smm if (error != 0) { 3055185029Spjd if (zc->zc_perm_action == B_FALSE) { 3056185029Spjd error = dsl_deleg_can_allow(zc->zc_name, 3057185029Spjd fsaclnv, CRED()); 3058185029Spjd } else { 3059185029Spjd error = dsl_deleg_can_unallow(zc->zc_name, 3060185029Spjd fsaclnv, CRED()); 3061185029Spjd } 3062185029Spjd } 3063185029Spjd 3064185029Spjd if (error == 0) 3065185029Spjd error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); 3066185029Spjd 3067185029Spjd nvlist_free(fsaclnv); 3068185029Spjd return (error); 3069185029Spjd} 3070185029Spjd 3071185029Spjd/* 3072185029Spjd * inputs: 3073185029Spjd * zc_name name of filesystem 3074185029Spjd * 3075185029Spjd * outputs: 3076185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 3077185029Spjd */ 3078185029Spjdstatic int 3079185029Spjdzfs_ioc_get_fsacl(zfs_cmd_t *zc) 3080185029Spjd{ 3081185029Spjd nvlist_t *nvp; 3082185029Spjd int error; 3083185029Spjd 3084185029Spjd if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { 3085185029Spjd error = put_nvlist(zc, nvp); 3086185029Spjd nvlist_free(nvp); 3087185029Spjd } 3088185029Spjd 3089185029Spjd return (error); 3090185029Spjd} 3091185029Spjd 3092185029Spjd/* ARGSUSED */ 3093168404Spjdstatic void 3094185029Spjdzfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) 3095168404Spjd{ 3096185029Spjd zfs_creat_t *zct = arg; 3097168404Spjd 3098185029Spjd zfs_create_fs(os, cr, zct->zct_zplprops, tx); 3099168404Spjd} 3100168404Spjd 3101185029Spjd#define ZFS_PROP_UNDEFINED ((uint64_t)-1) 3102185029Spjd 3103185029Spjd/* 3104185029Spjd * inputs: 3105251631Sdelphij * os parent objset pointer (NULL if root fs) 3106251631Sdelphij * fuids_ok fuids allowed in this version of the spa? 3107251631Sdelphij * sa_ok SAs allowed in this version of the spa? 3108185029Spjd * createprops list of properties requested by creator 3109185029Spjd * 3110185029Spjd * outputs: 3111185029Spjd * zplprops values for the zplprops we attach to the master node object 3112185029Spjd * is_ci true if requested file system will be purely case-insensitive 3113185029Spjd * 3114185029Spjd * Determine the settings for utf8only, normalization and 3115185029Spjd * casesensitivity. Specific values may have been requested by the 3116185029Spjd * creator and/or we can inherit values from the parent dataset. If 3117185029Spjd * the file system is of too early a vintage, a creator can not 3118185029Spjd * request settings for these properties, even if the requested 3119185029Spjd * setting is the default value. We don't actually want to create dsl 3120185029Spjd * properties for these, so remove them from the source nvlist after 3121185029Spjd * processing. 3122185029Spjd */ 3123168404Spjdstatic int 3124209962Smmzfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, 3125219089Spjd boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, 3126219089Spjd nvlist_t *zplprops, boolean_t *is_ci) 3127185029Spjd{ 3128185029Spjd uint64_t sense = ZFS_PROP_UNDEFINED; 3129185029Spjd uint64_t norm = ZFS_PROP_UNDEFINED; 3130185029Spjd uint64_t u8 = ZFS_PROP_UNDEFINED; 3131185029Spjd 3132185029Spjd ASSERT(zplprops != NULL); 3133185029Spjd 3134359722Sfreqlabs /* parent dataset must be a filesystem */ 3135321556Smav if (os != NULL && os->os_phys->os_type != DMU_OST_ZFS) 3136359722Sfreqlabs return (SET_ERROR(ZFS_ERR_WRONG_PARENT)); 3137321556Smav 3138185029Spjd /* 3139185029Spjd * Pull out creator prop choices, if any. 3140185029Spjd */ 3141185029Spjd if (createprops) { 3142185029Spjd (void) nvlist_lookup_uint64(createprops, 3143185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); 3144185029Spjd (void) nvlist_lookup_uint64(createprops, 3145185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); 3146185029Spjd (void) nvlist_remove_all(createprops, 3147185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE)); 3148185029Spjd (void) nvlist_lookup_uint64(createprops, 3149185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); 3150185029Spjd (void) nvlist_remove_all(createprops, 3151185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 3152185029Spjd (void) nvlist_lookup_uint64(createprops, 3153185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), &sense); 3154185029Spjd (void) nvlist_remove_all(createprops, 3155185029Spjd zfs_prop_to_name(ZFS_PROP_CASE)); 3156185029Spjd } 3157185029Spjd 3158185029Spjd /* 3159185029Spjd * If the zpl version requested is whacky or the file system 3160185029Spjd * or pool is version is too "young" to support normalization 3161185029Spjd * and the creator tried to set a value for one of the props, 3162185029Spjd * error out. 3163185029Spjd */ 3164185029Spjd if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || 3165185029Spjd (zplver >= ZPL_VERSION_FUID && !fuids_ok) || 3166219089Spjd (zplver >= ZPL_VERSION_SA && !sa_ok) || 3167185029Spjd (zplver < ZPL_VERSION_NORMALIZATION && 3168185029Spjd (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || 3169185029Spjd sense != ZFS_PROP_UNDEFINED))) 3170249195Smm return (SET_ERROR(ENOTSUP)); 3171185029Spjd 3172185029Spjd /* 3173185029Spjd * Put the version in the zplprops 3174185029Spjd */ 3175185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3176185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); 3177185029Spjd 3178185029Spjd if (norm == ZFS_PROP_UNDEFINED) 3179185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); 3180185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3181185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); 3182185029Spjd 3183185029Spjd /* 3184185029Spjd * If we're normalizing, names must always be valid UTF-8 strings. 3185185029Spjd */ 3186185029Spjd if (norm) 3187185029Spjd u8 = 1; 3188185029Spjd if (u8 == ZFS_PROP_UNDEFINED) 3189185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); 3190185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3191185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); 3192185029Spjd 3193185029Spjd if (sense == ZFS_PROP_UNDEFINED) 3194185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); 3195185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3196185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); 3197185029Spjd 3198185029Spjd if (is_ci) 3199185029Spjd *is_ci = (sense == ZFS_CASE_INSENSITIVE); 3200185029Spjd 3201185029Spjd return (0); 3202185029Spjd} 3203185029Spjd 3204185029Spjdstatic int 3205185029Spjdzfs_fill_zplprops(const char *dataset, nvlist_t *createprops, 3206185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3207185029Spjd{ 3208219089Spjd boolean_t fuids_ok, sa_ok; 3209185029Spjd uint64_t zplver = ZPL_VERSION; 3210185029Spjd objset_t *os = NULL; 3211307108Smav char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3212219089Spjd spa_t *spa; 3213219089Spjd uint64_t spa_vers; 3214185029Spjd int error; 3215185029Spjd 3216359722Sfreqlabs zfs_get_parent(dataset, parentname, sizeof (parentname)); 3217185029Spjd 3218219089Spjd if ((error = spa_open(dataset, &spa, FTAG)) != 0) 3219219089Spjd return (error); 3220185029Spjd 3221219089Spjd spa_vers = spa_version(spa); 3222219089Spjd spa_close(spa, FTAG); 3223219089Spjd 3224219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3225219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3226219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3227219089Spjd 3228185029Spjd /* 3229185029Spjd * Open parent object set so we can inherit zplprop values. 3230185029Spjd */ 3231219089Spjd if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) 3232185029Spjd return (error); 3233185029Spjd 3234219089Spjd error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, 3235185029Spjd zplprops, is_ci); 3236219089Spjd dmu_objset_rele(os, FTAG); 3237185029Spjd return (error); 3238185029Spjd} 3239185029Spjd 3240185029Spjdstatic int 3241185029Spjdzfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, 3242185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3243185029Spjd{ 3244219089Spjd boolean_t fuids_ok; 3245219089Spjd boolean_t sa_ok; 3246185029Spjd uint64_t zplver = ZPL_VERSION; 3247185029Spjd int error; 3248185029Spjd 3249219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3250219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3251219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3252185029Spjd 3253219089Spjd error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, 3254219089Spjd createprops, zplprops, is_ci); 3255185029Spjd return (error); 3256185029Spjd} 3257185029Spjd 3258185029Spjd/* 3259248571Smm * innvl: { 3260248571Smm * "type" -> dmu_objset_type_t (int32) 3261248571Smm * (optional) "props" -> { prop -> value } 3262248571Smm * } 3263185029Spjd * 3264248571Smm * outnvl: propname -> error code (int32) 3265185029Spjd */ 3266185029Spjdstatic int 3267248571Smmzfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3268168404Spjd{ 3269168404Spjd int error = 0; 3270248571Smm zfs_creat_t zct = { 0 }; 3271185029Spjd nvlist_t *nvprops = NULL; 3272185029Spjd void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); 3273248571Smm int32_t type32; 3274248571Smm dmu_objset_type_t type; 3275248571Smm boolean_t is_insensitive = B_FALSE; 3276168404Spjd 3277248571Smm if (nvlist_lookup_int32(innvl, "type", &type32) != 0) 3278249195Smm return (SET_ERROR(EINVAL)); 3279248571Smm type = type32; 3280248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3281248571Smm 3282168404Spjd switch (type) { 3283168404Spjd case DMU_OST_ZFS: 3284168404Spjd cbfunc = zfs_create_cb; 3285168404Spjd break; 3286168404Spjd 3287168404Spjd case DMU_OST_ZVOL: 3288168404Spjd cbfunc = zvol_create_cb; 3289168404Spjd break; 3290168404Spjd 3291168404Spjd default: 3292168404Spjd cbfunc = NULL; 3293185029Spjd break; 3294168404Spjd } 3295248571Smm if (strchr(fsname, '@') || 3296248571Smm strchr(fsname, '%')) 3297249195Smm return (SET_ERROR(EINVAL)); 3298168404Spjd 3299185029Spjd zct.zct_props = nvprops; 3300168404Spjd 3301248571Smm if (cbfunc == NULL) 3302249195Smm return (SET_ERROR(EINVAL)); 3303168404Spjd 3304248571Smm if (type == DMU_OST_ZVOL) { 3305248571Smm uint64_t volsize, volblocksize; 3306185029Spjd 3307248571Smm if (nvprops == NULL) 3308249195Smm return (SET_ERROR(EINVAL)); 3309248571Smm if (nvlist_lookup_uint64(nvprops, 3310248571Smm zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) 3311249195Smm return (SET_ERROR(EINVAL)); 3312185029Spjd 3313248571Smm if ((error = nvlist_lookup_uint64(nvprops, 3314248571Smm zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3315248571Smm &volblocksize)) != 0 && error != ENOENT) 3316249195Smm return (SET_ERROR(EINVAL)); 3317168404Spjd 3318248571Smm if (error != 0) 3319248571Smm volblocksize = zfs_prop_default_numeric( 3320248571Smm ZFS_PROP_VOLBLOCKSIZE); 3321168404Spjd 3322248571Smm if ((error = zvol_check_volblocksize( 3323248571Smm volblocksize)) != 0 || 3324248571Smm (error = zvol_check_volsize(volsize, 3325248571Smm volblocksize)) != 0) 3326248571Smm return (error); 3327248571Smm } else if (type == DMU_OST_ZFS) { 3328248571Smm int error; 3329168404Spjd 3330248571Smm /* 3331248571Smm * We have to have normalization and 3332248571Smm * case-folding flags correct when we do the 3333248571Smm * file system creation, so go figure them out 3334248571Smm * now. 3335248571Smm */ 3336248571Smm VERIFY(nvlist_alloc(&zct.zct_zplprops, 3337248571Smm NV_UNIQUE_NAME, KM_SLEEP) == 0); 3338248571Smm error = zfs_fill_zplprops(fsname, nvprops, 3339248571Smm zct.zct_zplprops, &is_insensitive); 3340248571Smm if (error != 0) { 3341248571Smm nvlist_free(zct.zct_zplprops); 3342248571Smm return (error); 3343168404Spjd } 3344168404Spjd } 3345168404Spjd 3346248571Smm error = dmu_objset_create(fsname, type, 3347248571Smm is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); 3348248571Smm nvlist_free(zct.zct_zplprops); 3349248571Smm 3350168404Spjd /* 3351168404Spjd * It would be nice to do this atomically. 3352168404Spjd */ 3353168404Spjd if (error == 0) { 3354248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3355248571Smm nvprops, outnvl); 3356219089Spjd if (error != 0) 3357248571Smm (void) dsl_destroy_head(fsname); 3358168404Spjd } 3359219089Spjd#ifdef __FreeBSD__ 3360219089Spjd if (error == 0 && type == DMU_OST_ZVOL) 3361248571Smm zvol_create_minors(fsname); 3362219089Spjd#endif 3363168404Spjd return (error); 3364168404Spjd} 3365168404Spjd 3366185029Spjd/* 3367248571Smm * innvl: { 3368248571Smm * "origin" -> name of origin snapshot 3369248571Smm * (optional) "props" -> { prop -> value } 3370248571Smm * } 3371185029Spjd * 3372248571Smm * outnvl: propname -> error code (int32) 3373185029Spjd */ 3374185029Spjdstatic int 3375248571Smmzfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3376168404Spjd{ 3377248571Smm int error = 0; 3378185029Spjd nvlist_t *nvprops = NULL; 3379248571Smm char *origin_name; 3380185029Spjd 3381248571Smm if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) 3382249195Smm return (SET_ERROR(EINVAL)); 3383248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3384185029Spjd 3385248571Smm if (strchr(fsname, '@') || 3386248571Smm strchr(fsname, '%')) 3387249195Smm return (SET_ERROR(EINVAL)); 3388248571Smm 3389248571Smm if (dataset_namecheck(origin_name, NULL, NULL) != 0) 3390249195Smm return (SET_ERROR(EINVAL)); 3391248571Smm error = dmu_objset_clone(fsname, origin_name); 3392248571Smm if (error != 0) 3393185029Spjd return (error); 3394185029Spjd 3395248571Smm /* 3396248571Smm * It would be nice to do this atomically. 3397248571Smm */ 3398248571Smm if (error == 0) { 3399248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3400248571Smm nvprops, outnvl); 3401248571Smm if (error != 0) 3402248571Smm (void) dsl_destroy_head(fsname); 3403248571Smm } 3404264341Smav#ifdef __FreeBSD__ 3405264341Smav if (error == 0) 3406264341Smav zvol_create_minors(fsname); 3407264341Smav#endif 3408248571Smm return (error); 3409248571Smm} 3410185029Spjd 3411332525Smav/* ARGSUSED */ 3412332525Smavstatic int 3413332525Smavzfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3414332525Smav{ 3415332525Smav if (strchr(fsname, '@') || 3416332525Smav strchr(fsname, '%')) 3417332525Smav return (SET_ERROR(EINVAL)); 3418332525Smav 3419332525Smav return (dmu_objset_remap_indirects(fsname)); 3420332525Smav} 3421332525Smav 3422248571Smm/* 3423248571Smm * innvl: { 3424248571Smm * "snaps" -> { snapshot1, snapshot2 } 3425248571Smm * (optional) "props" -> { prop -> value (string) } 3426248571Smm * } 3427248571Smm * 3428248571Smm * outnvl: snapshot -> error code (int32) 3429248571Smm */ 3430248571Smmstatic int 3431248571Smmzfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3432248571Smm{ 3433248571Smm nvlist_t *snaps; 3434248571Smm nvlist_t *props = NULL; 3435248571Smm int error, poollen; 3436248571Smm nvpair_t *pair; 3437248571Smm 3438248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &props); 3439248571Smm if (!nvlist_empty(props) && 3440248571Smm zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) 3441249195Smm return (SET_ERROR(ENOTSUP)); 3442351933Savg if ((error = zfs_check_userprops(props)) != 0) 3443351933Savg return (error); 3444248571Smm 3445248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3446249195Smm return (SET_ERROR(EINVAL)); 3447248571Smm poollen = strlen(poolname); 3448248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3449248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3450248571Smm const char *name = nvpair_name(pair); 3451351933Savg char *cp = strchr(name, '@'); 3452248571Smm 3453248571Smm /* 3454248571Smm * The snap name must contain an @, and the part after it must 3455248571Smm * contain only valid characters. 3456248571Smm */ 3457260183Sdelphij if (cp == NULL || 3458260183Sdelphij zfs_component_namecheck(cp + 1, NULL, NULL) != 0) 3459249195Smm return (SET_ERROR(EINVAL)); 3460248571Smm 3461248571Smm /* 3462248571Smm * The snap must be in the specified pool. 3463248571Smm */ 3464248571Smm if (strncmp(name, poolname, poollen) != 0 || 3465248571Smm (name[poollen] != '/' && name[poollen] != '@')) 3466249195Smm return (SET_ERROR(EXDEV)); 3467248571Smm 3468351933Savg /* 3469351933Savg * Check for permission to set the properties on the fs. 3470351933Savg */ 3471351933Savg if (!nvlist_empty(props)) { 3472351933Savg *cp = '\0'; 3473351933Savg error = zfs_secpolicy_write_perms(name, 3474351933Savg ZFS_DELEG_PERM_USERPROP, CRED()); 3475351933Savg *cp = '@'; 3476351933Savg if (error != 0) 3477351933Savg return (error); 3478351933Savg } 3479351933Savg 3480248571Smm /* This must be the only snap of this fs. */ 3481248571Smm for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair); 3482248571Smm pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { 3483248571Smm if (strncmp(name, nvpair_name(pair2), cp - name + 1) 3484248571Smm == 0) { 3485249195Smm return (SET_ERROR(EXDEV)); 3486248571Smm } 3487248571Smm } 3488185029Spjd } 3489209962Smm 3490248571Smm error = dsl_dataset_snapshot(snaps, props, outnvl); 3491185029Spjd return (error); 3492168404Spjd} 3493168404Spjd 3494248571Smm/* 3495248571Smm * innvl: "message" -> string 3496248571Smm */ 3497248571Smm/* ARGSUSED */ 3498248571Smmstatic int 3499248571Smmzfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) 3500168404Spjd{ 3501248571Smm char *message; 3502248571Smm spa_t *spa; 3503248571Smm int error; 3504248571Smm char *poolname; 3505168404Spjd 3506248571Smm /* 3507248571Smm * The poolname in the ioctl is not set, we get it from the TSD, 3508248571Smm * which was set at the end of the last successful ioctl that allows 3509248571Smm * logging. The secpolicy func already checked that it is set. 3510248571Smm * Only one log ioctl is allowed after each successful ioctl, so 3511248571Smm * we clear the TSD here. 3512248571Smm */ 3513248571Smm poolname = tsd_get(zfs_allow_log_key); 3514248571Smm (void) tsd_set(zfs_allow_log_key, NULL); 3515248571Smm error = spa_open(poolname, &spa, FTAG); 3516248571Smm strfree(poolname); 3517248571Smm if (error != 0) 3518248571Smm return (error); 3519248571Smm 3520248571Smm if (nvlist_lookup_string(innvl, "message", &message) != 0) { 3521248571Smm spa_close(spa, FTAG); 3522249195Smm return (SET_ERROR(EINVAL)); 3523168404Spjd } 3524168404Spjd 3525248571Smm if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 3526248571Smm spa_close(spa, FTAG); 3527249195Smm return (SET_ERROR(ENOTSUP)); 3528248571Smm } 3529168404Spjd 3530248571Smm error = spa_history_log(spa, message); 3531248571Smm spa_close(spa, FTAG); 3532248571Smm return (error); 3533248571Smm} 3534248571Smm 3535308914Savg#ifdef __FreeBSD__ 3536308914Savgstatic int 3537308914Savgzfs_ioc_nextboot(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) 3538308914Savg{ 3539308914Savg char name[MAXNAMELEN]; 3540308914Savg spa_t *spa; 3541308914Savg vdev_t *vd; 3542308914Savg char *command; 3543308914Savg uint64_t pool_guid; 3544308914Savg uint64_t vdev_guid; 3545308914Savg int error; 3546308914Savg 3547308914Savg if (nvlist_lookup_uint64(innvl, 3548308914Savg ZPOOL_CONFIG_POOL_GUID, &pool_guid) != 0) 3549308914Savg return (EINVAL); 3550308914Savg if (nvlist_lookup_uint64(innvl, 3551308914Savg ZPOOL_CONFIG_GUID, &vdev_guid) != 0) 3552308914Savg return (EINVAL); 3553308914Savg if (nvlist_lookup_string(innvl, 3554308914Savg "command", &command) != 0) 3555308914Savg return (EINVAL); 3556308914Savg 3557308914Savg mutex_enter(&spa_namespace_lock); 3558308914Savg spa = spa_by_guid(pool_guid, vdev_guid); 3559308914Savg if (spa != NULL) 3560308914Savg strcpy(name, spa_name(spa)); 3561308914Savg mutex_exit(&spa_namespace_lock); 3562308914Savg if (spa == NULL) 3563308914Savg return (ENOENT); 3564308914Savg 3565308914Savg if ((error = spa_open(name, &spa, FTAG)) != 0) 3566308914Savg return (error); 3567308914Savg spa_vdev_state_enter(spa, SCL_ALL); 3568308914Savg vd = spa_lookup_by_guid(spa, vdev_guid, B_TRUE); 3569308914Savg if (vd == NULL) { 3570308914Savg (void) spa_vdev_state_exit(spa, NULL, ENXIO); 3571308914Savg spa_close(spa, FTAG); 3572308914Savg return (ENODEV); 3573308914Savg } 3574308914Savg error = vdev_label_write_pad2(vd, command, strlen(command)); 3575308914Savg (void) spa_vdev_state_exit(spa, NULL, 0); 3576308914Savg txg_wait_synced(spa->spa_dsl_pool, 0); 3577308914Savg spa_close(spa, FTAG); 3578308914Savg return (error); 3579308914Savg} 3580308914Savg#endif 3581308914Savg 3582248571Smm/* 3583248571Smm * The dp_config_rwlock must not be held when calling this, because the 3584248571Smm * unmount may need to write out data. 3585248571Smm * 3586248571Smm * This function is best-effort. Callers must deal gracefully if it 3587248571Smm * remains mounted (or is remounted after this call). 3588251633Sdelphij * 3589251633Sdelphij * Returns 0 if the argument is not a snapshot, or it is not currently a 3590251633Sdelphij * filesystem, or we were able to unmount it. Returns error code otherwise. 3591248571Smm */ 3592325541Savgvoid 3593248571Smmzfs_unmount_snap(const char *snapname) 3594248571Smm{ 3595325541Savg vfs_t *vfsp = NULL; 3596325541Savg zfsvfs_t *zfsvfs = NULL; 3597248571Smm 3598248571Smm if (strchr(snapname, '@') == NULL) 3599325541Savg return; 3600248571Smm 3601330990Savg int err = getzfsvfs(snapname, &zfsvfs); 3602325541Savg if (err != 0) { 3603325541Savg ASSERT3P(zfsvfs, ==, NULL); 3604325541Savg return; 3605325541Savg } 3606325541Savg vfsp = zfsvfs->z_vfs; 3607248571Smm 3608248571Smm ASSERT(!dsl_pool_config_held(dmu_objset_pool(zfsvfs->z_os))); 3609248571Smm 3610324008Savg#ifdef illumos 3611251633Sdelphij err = vn_vfswlock(vfsp->vfs_vnodecovered); 3612248571Smm VFS_RELE(vfsp); 3613251633Sdelphij if (err != 0) 3614325541Savg return; 3615324008Savg#endif 3616248571Smm 3617248571Smm /* 3618248571Smm * Always force the unmount for snapshots. 3619248571Smm */ 3620248571Smm#ifdef illumos 3621248571Smm (void) dounmount(vfsp, MS_FORCE, kcred); 3622248571Smm#else 3623330990Savg vfs_ref(vfsp); 3624330990Savg vfs_unbusy(vfsp); 3625251633Sdelphij (void) dounmount(vfsp, MS_FORCE, curthread); 3626248571Smm#endif 3627248571Smm} 3628248571Smm 3629248571Smm/* ARGSUSED */ 3630248571Smmstatic int 3631248571Smmzfs_unmount_snap_cb(const char *snapname, void *arg) 3632248571Smm{ 3633325541Savg zfs_unmount_snap(snapname); 3634325541Savg return (0); 3635168404Spjd} 3636168404Spjd 3637185029Spjd/* 3638248571Smm * When a clone is destroyed, its origin may also need to be destroyed, 3639248571Smm * in which case it must be unmounted. This routine will do that unmount 3640248571Smm * if necessary. 3641248571Smm */ 3642248571Smmvoid 3643248571Smmzfs_destroy_unmount_origin(const char *fsname) 3644248571Smm{ 3645248571Smm int error; 3646248571Smm objset_t *os; 3647248571Smm dsl_dataset_t *ds; 3648248571Smm 3649248571Smm error = dmu_objset_hold(fsname, FTAG, &os); 3650248571Smm if (error != 0) 3651248571Smm return; 3652248571Smm ds = dmu_objset_ds(os); 3653248571Smm if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { 3654307108Smav char originname[ZFS_MAX_DATASET_NAME_LEN]; 3655248571Smm dsl_dataset_name(ds->ds_prev, originname); 3656248571Smm dmu_objset_rele(os, FTAG); 3657325541Savg zfs_unmount_snap(originname); 3658248571Smm } else { 3659248571Smm dmu_objset_rele(os, FTAG); 3660248571Smm } 3661248571Smm} 3662248571Smm 3663248571Smm/* 3664248571Smm * innvl: { 3665248571Smm * "snaps" -> { snapshot1, snapshot2 } 3666248571Smm * (optional boolean) "defer" 3667248571Smm * } 3668185029Spjd * 3669248571Smm * outnvl: snapshot -> error code (int32) 3670248571Smm * 3671185029Spjd */ 3672260183Sdelphij/* ARGSUSED */ 3673168404Spjdstatic int 3674248571Smmzfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3675168404Spjd{ 3676272474Ssmh int error, poollen; 3677248571Smm nvlist_t *snaps; 3678228103Smm nvpair_t *pair; 3679248571Smm boolean_t defer; 3680168404Spjd 3681248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3682249195Smm return (SET_ERROR(EINVAL)); 3683248571Smm defer = nvlist_exists(innvl, "defer"); 3684228103Smm 3685272474Ssmh poollen = strlen(poolname); 3686248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3687248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3688272324Sdelphij const char *name = nvpair_name(pair); 3689272324Sdelphij 3690272474Ssmh /* 3691272474Ssmh * The snap must be in the specified pool to prevent the 3692272474Ssmh * invalid removal of zvol minors below. 3693272474Ssmh */ 3694272474Ssmh if (strncmp(name, poolname, poollen) != 0 || 3695272474Ssmh (name[poollen] != '/' && name[poollen] != '@')) 3696272474Ssmh return (SET_ERROR(EXDEV)); 3697272474Ssmh 3698325541Savg zfs_unmount_snap(nvpair_name(pair)); 3699272324Sdelphij#if defined(__FreeBSD__) 3700272474Ssmh zvol_remove_minors(name); 3701272324Sdelphij#endif 3702260183Sdelphij } 3703260183Sdelphij 3704260183Sdelphij return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); 3705260183Sdelphij} 3706260183Sdelphij 3707260183Sdelphij/* 3708260183Sdelphij * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. 3709260183Sdelphij * All bookmarks must be in the same pool. 3710260183Sdelphij * 3711260183Sdelphij * innvl: { 3712260183Sdelphij * bookmark1 -> snapshot1, bookmark2 -> snapshot2 3713260183Sdelphij * } 3714260183Sdelphij * 3715260183Sdelphij * outnvl: bookmark -> error code (int32) 3716260183Sdelphij * 3717260183Sdelphij */ 3718260183Sdelphij/* ARGSUSED */ 3719260183Sdelphijstatic int 3720260183Sdelphijzfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3721260183Sdelphij{ 3722260183Sdelphij for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); 3723260183Sdelphij pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { 3724260183Sdelphij char *snap_name; 3725260183Sdelphij 3726260183Sdelphij /* 3727260183Sdelphij * Verify the snapshot argument. 3728260183Sdelphij */ 3729260183Sdelphij if (nvpair_value_string(pair, &snap_name) != 0) 3730260183Sdelphij return (SET_ERROR(EINVAL)); 3731260183Sdelphij 3732260183Sdelphij 3733260183Sdelphij /* Verify that the keys (bookmarks) are unique */ 3734260183Sdelphij for (nvpair_t *pair2 = nvlist_next_nvpair(innvl, pair); 3735260183Sdelphij pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { 3736260183Sdelphij if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) 3737260183Sdelphij return (SET_ERROR(EINVAL)); 3738260183Sdelphij } 3739260183Sdelphij } 3740260183Sdelphij 3741260183Sdelphij return (dsl_bookmark_create(innvl, outnvl)); 3742260183Sdelphij} 3743260183Sdelphij 3744260183Sdelphij/* 3745260183Sdelphij * innvl: { 3746260183Sdelphij * property 1, property 2, ... 3747260183Sdelphij * } 3748260183Sdelphij * 3749260183Sdelphij * outnvl: { 3750260183Sdelphij * bookmark name 1 -> { property 1, property 2, ... }, 3751260183Sdelphij * bookmark name 2 -> { property 1, property 2, ... } 3752260183Sdelphij * } 3753260183Sdelphij * 3754260183Sdelphij */ 3755260183Sdelphijstatic int 3756260183Sdelphijzfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3757260183Sdelphij{ 3758260183Sdelphij return (dsl_get_bookmarks(fsname, innvl, outnvl)); 3759260183Sdelphij} 3760260183Sdelphij 3761260183Sdelphij/* 3762260183Sdelphij * innvl: { 3763260183Sdelphij * bookmark name 1, bookmark name 2 3764260183Sdelphij * } 3765260183Sdelphij * 3766260183Sdelphij * outnvl: bookmark -> error code (int32) 3767260183Sdelphij * 3768260183Sdelphij */ 3769260183Sdelphijstatic int 3770260183Sdelphijzfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, 3771260183Sdelphij nvlist_t *outnvl) 3772260183Sdelphij{ 3773260183Sdelphij int error, poollen; 3774260183Sdelphij 3775260183Sdelphij poollen = strlen(poolname); 3776260183Sdelphij for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); 3777260183Sdelphij pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { 3778228103Smm const char *name = nvpair_name(pair); 3779260183Sdelphij const char *cp = strchr(name, '#'); 3780248571Smm 3781228103Smm /* 3782260183Sdelphij * The bookmark name must contain an #, and the part after it 3783260183Sdelphij * must contain only valid characters. 3784228103Smm */ 3785260183Sdelphij if (cp == NULL || 3786260183Sdelphij zfs_component_namecheck(cp + 1, NULL, NULL) != 0) 3787260183Sdelphij return (SET_ERROR(EINVAL)); 3788260183Sdelphij 3789260183Sdelphij /* 3790260183Sdelphij * The bookmark must be in the specified pool. 3791260183Sdelphij */ 3792248571Smm if (strncmp(name, poolname, poollen) != 0 || 3793260183Sdelphij (name[poollen] != '/' && name[poollen] != '#')) 3794249195Smm return (SET_ERROR(EXDEV)); 3795228103Smm } 3796228103Smm 3797260183Sdelphij error = dsl_bookmark_destroy(innvl, outnvl); 3798260183Sdelphij return (error); 3799168404Spjd} 3800168404Spjd 3801325534Savgstatic int 3802325534Savgzfs_ioc_channel_program(const char *poolname, nvlist_t *innvl, 3803325534Savg nvlist_t *outnvl) 3804325534Savg{ 3805325534Savg char *program; 3806325534Savg uint64_t instrlimit, memlimit; 3807329484Smav boolean_t sync_flag; 3808325534Savg nvpair_t *nvarg = NULL; 3809325534Savg 3810325534Savg if (0 != nvlist_lookup_string(innvl, ZCP_ARG_PROGRAM, &program)) { 3811325534Savg return (EINVAL); 3812325534Savg } 3813329484Smav if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) { 3814329484Smav sync_flag = B_TRUE; 3815329484Smav } 3816325534Savg if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_INSTRLIMIT, &instrlimit)) { 3817325534Savg instrlimit = ZCP_DEFAULT_INSTRLIMIT; 3818325534Savg } 3819325534Savg if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_MEMLIMIT, &memlimit)) { 3820325534Savg memlimit = ZCP_DEFAULT_MEMLIMIT; 3821325534Savg } 3822325534Savg if (0 != nvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST, &nvarg)) { 3823325534Savg return (EINVAL); 3824325534Savg } 3825325534Savg 3826325534Savg if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit) 3827325534Savg return (EINVAL); 3828325538Savg if (memlimit == 0 || memlimit > zfs_lua_max_memlimit) 3829325534Savg return (EINVAL); 3830325534Savg 3831329484Smav return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit, 3832325534Savg nvarg, outnvl)); 3833325534Savg} 3834325534Savg 3835185029Spjd/* 3836332547Smav * innvl: unused 3837332547Smav * outnvl: empty 3838332547Smav */ 3839332547Smav/* ARGSUSED */ 3840332547Smavstatic int 3841332547Smavzfs_ioc_pool_checkpoint(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3842332547Smav{ 3843332547Smav return (spa_checkpoint(poolname)); 3844332547Smav} 3845332547Smav 3846332547Smav/* 3847332547Smav * innvl: unused 3848332547Smav * outnvl: empty 3849332547Smav */ 3850332547Smav/* ARGSUSED */ 3851332547Smavstatic int 3852332547Smavzfs_ioc_pool_discard_checkpoint(const char *poolname, nvlist_t *innvl, 3853332547Smav nvlist_t *outnvl) 3854332547Smav{ 3855332547Smav return (spa_checkpoint_discard(poolname)); 3856332547Smav} 3857332547Smav 3858332547Smav/* 3859185029Spjd * inputs: 3860185029Spjd * zc_name name of dataset to destroy 3861219089Spjd * zc_defer_destroy mark for deferred destroy 3862185029Spjd * 3863185029Spjd * outputs: none 3864185029Spjd */ 3865168404Spjdstatic int 3866168404Spjdzfs_ioc_destroy(zfs_cmd_t *zc) 3867168404Spjd{ 3868342943Savg objset_t *os; 3869342943Savg dmu_objset_type_t ost; 3870219089Spjd int err; 3871168404Spjd 3872342943Savg err = dmu_objset_hold(zc->zc_name, FTAG, &os); 3873342943Savg if (err != 0) 3874342943Savg return (err); 3875342943Savg ost = dmu_objset_type(os); 3876342943Savg dmu_objset_rele(os, FTAG); 3877342943Savg 3878342943Savg if (ost == DMU_OST_ZFS) 3879325541Savg zfs_unmount_snap(zc->zc_name); 3880251633Sdelphij 3881248571Smm if (strchr(zc->zc_name, '@')) 3882248571Smm err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); 3883248571Smm else 3884248571Smm err = dsl_destroy_head(zc->zc_name); 3885342943Savg if (ost == DMU_OST_ZVOL && err == 0) 3886272474Ssmh#ifdef __FreeBSD__ 3887272474Ssmh zvol_remove_minors(zc->zc_name); 3888272474Ssmh#else 3889219089Spjd (void) zvol_remove_minor(zc->zc_name); 3890272474Ssmh#endif 3891219089Spjd return (err); 3892168404Spjd} 3893168404Spjd 3894185029Spjd/* 3895339111Smav * innvl: { 3896339111Smav * vdevs: { 3897339111Smav * guid 1, guid 2, ... 3898339111Smav * }, 3899339111Smav * func: POOL_INITIALIZE_{CANCEL|DO|SUSPEND} 3900339111Smav * } 3901339111Smav * 3902339111Smav * outnvl: { 3903339111Smav * [func: EINVAL (if provided command type didn't make sense)], 3904339111Smav * [vdevs: { 3905339111Smav * guid1: errno, (see function body for possible errnos) 3906339111Smav * ... 3907339111Smav * }] 3908339111Smav * } 3909339111Smav * 3910339111Smav */ 3911339111Smavstatic int 3912339111Smavzfs_ioc_pool_initialize(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3913339111Smav{ 3914339111Smav spa_t *spa; 3915339111Smav int error; 3916339111Smav 3917339111Smav error = spa_open(poolname, &spa, FTAG); 3918339111Smav if (error != 0) 3919339111Smav return (error); 3920339111Smav 3921339111Smav uint64_t cmd_type; 3922339111Smav if (nvlist_lookup_uint64(innvl, ZPOOL_INITIALIZE_COMMAND, 3923339111Smav &cmd_type) != 0) { 3924339111Smav spa_close(spa, FTAG); 3925339111Smav return (SET_ERROR(EINVAL)); 3926339111Smav } 3927339111Smav if (!(cmd_type == POOL_INITIALIZE_CANCEL || 3928339111Smav cmd_type == POOL_INITIALIZE_DO || 3929339111Smav cmd_type == POOL_INITIALIZE_SUSPEND)) { 3930339111Smav spa_close(spa, FTAG); 3931339111Smav return (SET_ERROR(EINVAL)); 3932339111Smav } 3933339111Smav 3934339111Smav nvlist_t *vdev_guids; 3935339111Smav if (nvlist_lookup_nvlist(innvl, ZPOOL_INITIALIZE_VDEVS, 3936339111Smav &vdev_guids) != 0) { 3937339111Smav spa_close(spa, FTAG); 3938339111Smav return (SET_ERROR(EINVAL)); 3939339111Smav } 3940339111Smav 3941339111Smav nvlist_t *vdev_errlist = fnvlist_alloc(); 3942339111Smav int total_errors = 0; 3943339111Smav 3944339111Smav for (nvpair_t *pair = nvlist_next_nvpair(vdev_guids, NULL); 3945339111Smav pair != NULL; pair = nvlist_next_nvpair(vdev_guids, pair)) { 3946339111Smav uint64_t vdev_guid = fnvpair_value_uint64(pair); 3947339111Smav 3948339111Smav error = spa_vdev_initialize(spa, vdev_guid, cmd_type); 3949339111Smav if (error != 0) { 3950339111Smav char guid_as_str[MAXNAMELEN]; 3951339111Smav 3952339111Smav (void) snprintf(guid_as_str, sizeof (guid_as_str), 3953339111Smav "%llu", (unsigned long long)vdev_guid); 3954339111Smav fnvlist_add_int64(vdev_errlist, guid_as_str, error); 3955339111Smav total_errors++; 3956339111Smav } 3957339111Smav } 3958339111Smav if (fnvlist_size(vdev_errlist) > 0) { 3959339111Smav fnvlist_add_nvlist(outnvl, ZPOOL_INITIALIZE_VDEVS, 3960339111Smav vdev_errlist); 3961339111Smav } 3962339111Smav fnvlist_free(vdev_errlist); 3963339111Smav 3964339111Smav spa_close(spa, FTAG); 3965339111Smav return (total_errors > 0 ? EINVAL : 0); 3966339111Smav} 3967339111Smav 3968339111Smav/* 3969254587Sdelphij * fsname is name of dataset to rollback (to most recent snapshot) 3970185029Spjd * 3971323757Savg * innvl may contain name of expected target snapshot 3972254587Sdelphij * 3973254587Sdelphij * outnvl: "target" -> name of most recent snapshot 3974254587Sdelphij * } 3975185029Spjd */ 3976254587Sdelphij/* ARGSUSED */ 3977168404Spjdstatic int 3978323757Savgzfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3979168404Spjd{ 3980248571Smm zfsvfs_t *zfsvfs; 3981323757Savg char *target = NULL; 3982185029Spjd int error; 3983185029Spjd 3984323757Savg (void) nvlist_lookup_string(innvl, "target", &target); 3985323757Savg if (target != NULL) { 3986330590Savg const char *cp = strchr(target, '@'); 3987323757Savg 3988330590Savg /* 3989330590Savg * The snap name must contain an @, and the part after it must 3990330590Savg * contain only valid characters. 3991330590Savg */ 3992330590Savg if (cp == NULL || 3993330590Savg zfs_component_namecheck(cp + 1, NULL, NULL) != 0) 3994323757Savg return (SET_ERROR(EINVAL)); 3995323757Savg } 3996323757Savg 3997254587Sdelphij if (getzfsvfs(fsname, &zfsvfs) == 0) { 3998310509Savg dsl_dataset_t *ds; 3999310509Savg 4000310509Savg ds = dmu_objset_ds(zfsvfs->z_os); 4001219089Spjd error = zfs_suspend_fs(zfsvfs); 4002185029Spjd if (error == 0) { 4003185029Spjd int resume_err; 4004185029Spjd 4005323757Savg error = dsl_dataset_rollback(fsname, target, zfsvfs, 4006323757Savg outnvl); 4007310509Savg resume_err = zfs_resume_fs(zfsvfs, ds); 4008185029Spjd error = error ? error : resume_err; 4009185029Spjd } 4010297513Savg#ifdef illumos 4011185029Spjd VFS_RELE(zfsvfs->z_vfs); 4012297513Savg#else 4013297513Savg vfs_unbusy(zfsvfs->z_vfs); 4014297513Savg#endif 4015185029Spjd } else { 4016323757Savg error = dsl_dataset_rollback(fsname, target, NULL, outnvl); 4017185029Spjd } 4018248571Smm return (error); 4019248571Smm} 4020185029Spjd 4021248571Smmstatic int 4022248571Smmrecursive_unmount(const char *fsname, void *arg) 4023248571Smm{ 4024248571Smm const char *snapname = arg; 4025307108Smav char fullname[ZFS_MAX_DATASET_NAME_LEN]; 4026219089Spjd 4027248571Smm (void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname); 4028325541Savg zfs_unmount_snap(fullname); 4029325541Savg 4030325541Savg return (0); 4031168404Spjd} 4032168404Spjd 4033185029Spjd/* 4034185029Spjd * inputs: 4035353759Savg * zc_name old name of dataset or bookmark 4036353759Savg * zc_value new name of dataset or bookmark 4037185029Spjd * zc_cookie recursive flag (only valid for snapshots) 4038185029Spjd * 4039185029Spjd * outputs: none 4040185029Spjd */ 4041168404Spjdstatic int 4042168404Spjdzfs_ioc_rename(zfs_cmd_t *zc) 4043168404Spjd{ 4044342943Savg objset_t *os; 4045342943Savg dmu_objset_type_t ost; 4046248571Smm boolean_t recursive = zc->zc_cookie & 1; 4047353759Savg char *pos, *pos2; 4048277501Swill boolean_t allow_mounted = B_TRUE; 4049342943Savg int err; 4050277501Swill 4051248571Smm#ifdef __FreeBSD__ 4052277501Swill allow_mounted = (zc->zc_cookie & 2) != 0; 4053248571Smm#endif 4054168676Spjd 4055332535Smav zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 4056168404Spjd zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 4057353759Savg 4058353759Savg pos = strchr(zc->zc_name, '#'); 4059353759Savg if (pos != NULL) { 4060353759Savg /* Bookmarks must be in same fs. */ 4061353759Savg pos2 = strchr(zc->zc_value, '#'); 4062353759Savg if (pos2 == NULL) 4063353759Savg return (SET_ERROR(EINVAL)); 4064353759Savg 4065353759Savg /* Recursive flag is not supported yet. */ 4066353759Savg if (recursive) 4067353759Savg return (SET_ERROR(ENOTSUP)); 4068353759Savg 4069353759Savg *pos = '\0'; 4070353759Savg *pos2 = '\0'; 4071353759Savg if (strcmp(zc->zc_name, zc->zc_value) == 0) { 4072353759Savg err = dsl_bookmark_rename(zc->zc_name, 4073353759Savg pos + 1, pos2 + 1); 4074353759Savg } else { 4075353759Savg err = SET_ERROR(EXDEV); 4076353759Savg } 4077353759Savg *pos = '#'; 4078353759Savg *pos2 = '#'; 4079353759Savg return (err); 4080353759Savg } 4081353759Savg 4082353759Savg /* "zfs rename" from and to ...%recv datasets should both fail */ 4083332535Smav if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 || 4084332535Smav dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 4085332535Smav strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%')) 4086249195Smm return (SET_ERROR(EINVAL)); 4087168404Spjd 4088342943Savg err = dmu_objset_hold(zc->zc_name, FTAG, &os); 4089342943Savg if (err != 0) 4090342943Savg return (err); 4091342943Savg ost = dmu_objset_type(os); 4092342943Savg dmu_objset_rele(os, FTAG); 4093342943Savg 4094353759Savg pos = strchr(zc->zc_name, '@'); 4095353759Savg if (pos != NULL) { 4096353759Savg /* Snapshots must be in same fs. */ 4097353759Savg pos2 = strchr(zc->zc_value, '@'); 4098353759Savg if (pos2 == NULL) 4099353759Savg return (SET_ERROR(EINVAL)); 4100353759Savg *pos = '\0'; 4101353759Savg *pos2 = '\0'; 4102353759Savg if (strcmp(zc->zc_name, zc->zc_value) != 0) { 4103353759Savg err = SET_ERROR(EXDEV); 4104353759Savg } else { 4105353759Savg if (ost == DMU_OST_ZFS && !allow_mounted) { 4106353759Savg err = dmu_objset_find(zc->zc_name, 4107353759Savg recursive_unmount, pos + 1, 4108353759Savg recursive ? DS_FIND_CHILDREN : 0); 4109253926Ssmh } 4110353759Savg if (err == 0) { 4111353759Savg err = dsl_dataset_rename_snapshot(zc->zc_name, 4112353759Savg pos + 1, pos2 + 1, recursive); 4113353759Savg } 4114248571Smm } 4115353759Savg *pos = '@'; 4116353759Savg *pos2 = '@'; 4117353759Savg return (err); 4118248571Smm } else { 4119248571Smm#ifdef illumos 4120342943Savg if (ost == DMU_OST_ZVOL) 4121248571Smm (void) zvol_remove_minor(zc->zc_name); 4122248571Smm#endif 4123248571Smm return (dsl_dir_rename(zc->zc_name, zc->zc_value)); 4124168404Spjd } 4125168404Spjd} 4126168404Spjd 4127219089Spjdstatic int 4128219089Spjdzfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) 4129185029Spjd{ 4130219089Spjd const char *propname = nvpair_name(pair); 4131219089Spjd boolean_t issnap = (strchr(dsname, '@') != NULL); 4132219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 4133219089Spjd uint64_t intval; 4134219089Spjd int err; 4135219089Spjd 4136219089Spjd if (prop == ZPROP_INVAL) { 4137219089Spjd if (zfs_prop_user(propname)) { 4138219089Spjd if (err = zfs_secpolicy_write_perms(dsname, 4139219089Spjd ZFS_DELEG_PERM_USERPROP, cr)) 4140219089Spjd return (err); 4141219089Spjd return (0); 4142219089Spjd } 4143219089Spjd 4144219089Spjd if (!issnap && zfs_prop_userquota(propname)) { 4145219089Spjd const char *perm = NULL; 4146219089Spjd const char *uq_prefix = 4147219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; 4148219089Spjd const char *gq_prefix = 4149219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; 4150219089Spjd 4151219089Spjd if (strncmp(propname, uq_prefix, 4152219089Spjd strlen(uq_prefix)) == 0) { 4153219089Spjd perm = ZFS_DELEG_PERM_USERQUOTA; 4154219089Spjd } else if (strncmp(propname, gq_prefix, 4155219089Spjd strlen(gq_prefix)) == 0) { 4156219089Spjd perm = ZFS_DELEG_PERM_GROUPQUOTA; 4157219089Spjd } else { 4158219089Spjd /* USERUSED and GROUPUSED are read-only */ 4159249195Smm return (SET_ERROR(EINVAL)); 4160219089Spjd } 4161219089Spjd 4162219089Spjd if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) 4163219089Spjd return (err); 4164219089Spjd return (0); 4165219089Spjd } 4166219089Spjd 4167249195Smm return (SET_ERROR(EINVAL)); 4168219089Spjd } 4169219089Spjd 4170219089Spjd if (issnap) 4171249195Smm return (SET_ERROR(EINVAL)); 4172219089Spjd 4173219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 4174219089Spjd /* 4175219089Spjd * dsl_prop_get_all_impl() returns properties in this 4176219089Spjd * format. 4177219089Spjd */ 4178219089Spjd nvlist_t *attrs; 4179219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 4180219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 4181219089Spjd &pair) == 0); 4182219089Spjd } 4183219089Spjd 4184219089Spjd /* 4185219089Spjd * Check that this value is valid for this pool version 4186219089Spjd */ 4187219089Spjd switch (prop) { 4188219089Spjd case ZFS_PROP_COMPRESSION: 4189219089Spjd /* 4190219089Spjd * If the user specified gzip compression, make sure 4191219089Spjd * the SPA supports it. We ignore any errors here since 4192219089Spjd * we'll catch them later. 4193219089Spjd */ 4194274337Sdelphij if (nvpair_value_uint64(pair, &intval) == 0) { 4195219089Spjd if (intval >= ZIO_COMPRESS_GZIP_1 && 4196219089Spjd intval <= ZIO_COMPRESS_GZIP_9 && 4197219089Spjd zfs_earlier_version(dsname, 4198219089Spjd SPA_VERSION_GZIP_COMPRESSION)) { 4199249195Smm return (SET_ERROR(ENOTSUP)); 4200219089Spjd } 4201219089Spjd 4202219089Spjd if (intval == ZIO_COMPRESS_ZLE && 4203219089Spjd zfs_earlier_version(dsname, 4204219089Spjd SPA_VERSION_ZLE_COMPRESSION)) 4205249195Smm return (SET_ERROR(ENOTSUP)); 4206219089Spjd 4207246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 4208246586Sdelphij spa_t *spa; 4209246586Sdelphij 4210246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 4211246586Sdelphij return (err); 4212246586Sdelphij 4213259813Sdelphij if (!spa_feature_is_enabled(spa, 4214259813Sdelphij SPA_FEATURE_LZ4_COMPRESS)) { 4215246586Sdelphij spa_close(spa, FTAG); 4216249195Smm return (SET_ERROR(ENOTSUP)); 4217246586Sdelphij } 4218246586Sdelphij spa_close(spa, FTAG); 4219246586Sdelphij } 4220246586Sdelphij 4221219089Spjd /* 4222219089Spjd * If this is a bootable dataset then 4223219089Spjd * verify that the compression algorithm 4224219089Spjd * is supported for booting. We must return 4225219089Spjd * something other than ENOTSUP since it 4226219089Spjd * implies a downrev pool version. 4227219089Spjd */ 4228219089Spjd if (zfs_is_bootfs(dsname) && 4229219089Spjd !BOOTFS_COMPRESS_VALID(intval)) { 4230249195Smm return (SET_ERROR(ERANGE)); 4231219089Spjd } 4232219089Spjd } 4233219089Spjd break; 4234219089Spjd 4235219089Spjd case ZFS_PROP_COPIES: 4236219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) 4237249195Smm return (SET_ERROR(ENOTSUP)); 4238219089Spjd break; 4239219089Spjd 4240274337Sdelphij case ZFS_PROP_RECORDSIZE: 4241274337Sdelphij /* Record sizes above 128k need the feature to be enabled */ 4242274337Sdelphij if (nvpair_value_uint64(pair, &intval) == 0 && 4243274337Sdelphij intval > SPA_OLD_MAXBLOCKSIZE) { 4244274337Sdelphij spa_t *spa; 4245274337Sdelphij 4246274337Sdelphij /* 4247274337Sdelphij * We don't allow setting the property above 1MB, 4248274337Sdelphij * unless the tunable has been changed. 4249274337Sdelphij */ 4250274337Sdelphij if (intval > zfs_max_recordsize || 4251274337Sdelphij intval > SPA_MAXBLOCKSIZE) 4252289299Smav return (SET_ERROR(ERANGE)); 4253274337Sdelphij 4254274337Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 4255274337Sdelphij return (err); 4256274337Sdelphij 4257274337Sdelphij if (!spa_feature_is_enabled(spa, 4258274337Sdelphij SPA_FEATURE_LARGE_BLOCKS)) { 4259274337Sdelphij spa_close(spa, FTAG); 4260274337Sdelphij return (SET_ERROR(ENOTSUP)); 4261274337Sdelphij } 4262274337Sdelphij spa_close(spa, FTAG); 4263274337Sdelphij } 4264274337Sdelphij break; 4265274337Sdelphij 4266219089Spjd case ZFS_PROP_SHARESMB: 4267219089Spjd if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) 4268249195Smm return (SET_ERROR(ENOTSUP)); 4269219089Spjd break; 4270219089Spjd 4271219089Spjd case ZFS_PROP_ACLINHERIT: 4272219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 4273219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 4274219089Spjd if (intval == ZFS_ACL_PASSTHROUGH_X && 4275219089Spjd zfs_earlier_version(dsname, 4276219089Spjd SPA_VERSION_PASSTHROUGH_X)) 4277249195Smm return (SET_ERROR(ENOTSUP)); 4278219089Spjd } 4279219089Spjd break; 4280289422Smav 4281289422Smav case ZFS_PROP_CHECKSUM: 4282289422Smav case ZFS_PROP_DEDUP: 4283289422Smav { 4284289422Smav spa_feature_t feature; 4285289422Smav spa_t *spa; 4286289422Smav 4287289422Smav /* dedup feature version checks */ 4288289422Smav if (prop == ZFS_PROP_DEDUP && 4289289422Smav zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) 4290289422Smav return (SET_ERROR(ENOTSUP)); 4291289422Smav 4292289422Smav if (nvpair_value_uint64(pair, &intval) != 0) 4293289422Smav return (SET_ERROR(EINVAL)); 4294289422Smav 4295289422Smav /* check prop value is enabled in features */ 4296296523Smav feature = zio_checksum_to_feature(intval & ZIO_CHECKSUM_MASK); 4297289422Smav if (feature == SPA_FEATURE_NONE) 4298289422Smav break; 4299289422Smav 4300289422Smav if ((err = spa_open(dsname, &spa, FTAG)) != 0) 4301289422Smav return (err); 4302363098Sallanjude 4303289422Smav if (!spa_feature_is_enabled(spa, feature)) { 4304289422Smav spa_close(spa, FTAG); 4305289422Smav return (SET_ERROR(ENOTSUP)); 4306289422Smav } 4307289422Smav spa_close(spa, FTAG); 4308289422Smav break; 4309219089Spjd } 4310289422Smav } 4311219089Spjd 4312219089Spjd return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); 4313219089Spjd} 4314219089Spjd 4315219089Spjd/* 4316246586Sdelphij * Checks for a race condition to make sure we don't increment a feature flag 4317246586Sdelphij * multiple times. 4318246586Sdelphij */ 4319246586Sdelphijstatic int 4320248571Smmzfs_prop_activate_feature_check(void *arg, dmu_tx_t *tx) 4321246586Sdelphij{ 4322248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 4323259813Sdelphij spa_feature_t *featurep = arg; 4324246586Sdelphij 4325259813Sdelphij if (!spa_feature_is_active(spa, *featurep)) 4326246586Sdelphij return (0); 4327246586Sdelphij else 4328249195Smm return (SET_ERROR(EBUSY)); 4329246586Sdelphij} 4330246586Sdelphij 4331246586Sdelphij/* 4332246586Sdelphij * The callback invoked on feature activation in the sync task caused by 4333246586Sdelphij * zfs_prop_activate_feature. 4334246586Sdelphij */ 4335246586Sdelphijstatic void 4336248571Smmzfs_prop_activate_feature_sync(void *arg, dmu_tx_t *tx) 4337246586Sdelphij{ 4338248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 4339259813Sdelphij spa_feature_t *featurep = arg; 4340246586Sdelphij 4341259813Sdelphij spa_feature_incr(spa, *featurep, tx); 4342246586Sdelphij} 4343246586Sdelphij 4344246586Sdelphij/* 4345248571Smm * Activates a feature on a pool in response to a property setting. This 4346248571Smm * creates a new sync task which modifies the pool to reflect the feature 4347248571Smm * as being active. 4348248571Smm */ 4349248571Smmstatic int 4350259813Sdelphijzfs_prop_activate_feature(spa_t *spa, spa_feature_t feature) 4351248571Smm{ 4352248571Smm int err; 4353248571Smm 4354248571Smm /* EBUSY here indicates that the feature is already active */ 4355248571Smm err = dsl_sync_task(spa_name(spa), 4356248571Smm zfs_prop_activate_feature_check, zfs_prop_activate_feature_sync, 4357268473Sdelphij &feature, 2, ZFS_SPACE_CHECK_RESERVED); 4358248571Smm 4359248571Smm if (err != 0 && err != EBUSY) 4360248571Smm return (err); 4361248571Smm else 4362248571Smm return (0); 4363248571Smm} 4364248571Smm 4365248571Smm/* 4366219089Spjd * Removes properties from the given props list that fail permission checks 4367219089Spjd * needed to clear them and to restore them in case of a receive error. For each 4368219089Spjd * property, make sure we have both set and inherit permissions. 4369219089Spjd * 4370219089Spjd * Returns the first error encountered if any permission checks fail. If the 4371219089Spjd * caller provides a non-NULL errlist, it also gives the complete list of names 4372219089Spjd * of all the properties that failed a permission check along with the 4373219089Spjd * corresponding error numbers. The caller is responsible for freeing the 4374219089Spjd * returned errlist. 4375219089Spjd * 4376219089Spjd * If every property checks out successfully, zero is returned and the list 4377219089Spjd * pointed at by errlist is NULL. 4378219089Spjd */ 4379219089Spjdstatic int 4380219089Spjdzfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) 4381219089Spjd{ 4382185029Spjd zfs_cmd_t *zc; 4383219089Spjd nvpair_t *pair, *next_pair; 4384219089Spjd nvlist_t *errors; 4385219089Spjd int err, rv = 0; 4386185029Spjd 4387185029Spjd if (props == NULL) 4388219089Spjd return (0); 4389219089Spjd 4390219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 4391219089Spjd 4392185029Spjd zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); 4393185029Spjd (void) strcpy(zc->zc_name, dataset); 4394219089Spjd pair = nvlist_next_nvpair(props, NULL); 4395219089Spjd while (pair != NULL) { 4396219089Spjd next_pair = nvlist_next_nvpair(props, pair); 4397219089Spjd 4398219089Spjd (void) strcpy(zc->zc_value, nvpair_name(pair)); 4399219089Spjd if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || 4400248571Smm (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { 4401219089Spjd VERIFY(nvlist_remove_nvpair(props, pair) == 0); 4402219089Spjd VERIFY(nvlist_add_int32(errors, 4403219089Spjd zc->zc_value, err) == 0); 4404219089Spjd } 4405219089Spjd pair = next_pair; 4406185029Spjd } 4407185029Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 4408219089Spjd 4409219089Spjd if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { 4410219089Spjd nvlist_free(errors); 4411219089Spjd errors = NULL; 4412219089Spjd } else { 4413219089Spjd VERIFY(nvpair_value_int32(pair, &rv) == 0); 4414219089Spjd } 4415219089Spjd 4416219089Spjd if (errlist == NULL) 4417219089Spjd nvlist_free(errors); 4418219089Spjd else 4419219089Spjd *errlist = errors; 4420219089Spjd 4421219089Spjd return (rv); 4422185029Spjd} 4423185029Spjd 4424219089Spjdstatic boolean_t 4425219089Spjdpropval_equals(nvpair_t *p1, nvpair_t *p2) 4426219089Spjd{ 4427219089Spjd if (nvpair_type(p1) == DATA_TYPE_NVLIST) { 4428219089Spjd /* dsl_prop_get_all_impl() format */ 4429219089Spjd nvlist_t *attrs; 4430219089Spjd VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); 4431219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 4432219089Spjd &p1) == 0); 4433219089Spjd } 4434219089Spjd 4435219089Spjd if (nvpair_type(p2) == DATA_TYPE_NVLIST) { 4436219089Spjd nvlist_t *attrs; 4437219089Spjd VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); 4438219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 4439219089Spjd &p2) == 0); 4440219089Spjd } 4441219089Spjd 4442219089Spjd if (nvpair_type(p1) != nvpair_type(p2)) 4443219089Spjd return (B_FALSE); 4444219089Spjd 4445219089Spjd if (nvpair_type(p1) == DATA_TYPE_STRING) { 4446219089Spjd char *valstr1, *valstr2; 4447219089Spjd 4448219089Spjd VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); 4449219089Spjd VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); 4450219089Spjd return (strcmp(valstr1, valstr2) == 0); 4451219089Spjd } else { 4452219089Spjd uint64_t intval1, intval2; 4453219089Spjd 4454219089Spjd VERIFY(nvpair_value_uint64(p1, &intval1) == 0); 4455219089Spjd VERIFY(nvpair_value_uint64(p2, &intval2) == 0); 4456219089Spjd return (intval1 == intval2); 4457219089Spjd } 4458219089Spjd} 4459219089Spjd 4460185029Spjd/* 4461219089Spjd * Remove properties from props if they are not going to change (as determined 4462219089Spjd * by comparison with origprops). Remove them from origprops as well, since we 4463219089Spjd * do not need to clear or restore properties that won't change. 4464219089Spjd */ 4465219089Spjdstatic void 4466219089Spjdprops_reduce(nvlist_t *props, nvlist_t *origprops) 4467219089Spjd{ 4468219089Spjd nvpair_t *pair, *next_pair; 4469219089Spjd 4470219089Spjd if (origprops == NULL) 4471219089Spjd return; /* all props need to be received */ 4472219089Spjd 4473219089Spjd pair = nvlist_next_nvpair(props, NULL); 4474219089Spjd while (pair != NULL) { 4475219089Spjd const char *propname = nvpair_name(pair); 4476219089Spjd nvpair_t *match; 4477219089Spjd 4478219089Spjd next_pair = nvlist_next_nvpair(props, pair); 4479219089Spjd 4480219089Spjd if ((nvlist_lookup_nvpair(origprops, propname, 4481219089Spjd &match) != 0) || !propval_equals(pair, match)) 4482219089Spjd goto next; /* need to set received value */ 4483219089Spjd 4484219089Spjd /* don't clear the existing received value */ 4485219089Spjd (void) nvlist_remove_nvpair(origprops, match); 4486219089Spjd /* don't bother receiving the property */ 4487219089Spjd (void) nvlist_remove_nvpair(props, pair); 4488219089Spjdnext: 4489219089Spjd pair = next_pair; 4490219089Spjd } 4491219089Spjd} 4492219089Spjd 4493294817Smav/* 4494294817Smav * Extract properties that cannot be set PRIOR to the receipt of a dataset. 4495294817Smav * For example, refquota cannot be set until after the receipt of a dataset, 4496294817Smav * because in replication streams, an older/earlier snapshot may exceed the 4497294817Smav * refquota. We want to receive the older/earlier snapshot, but setting 4498294817Smav * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent 4499294817Smav * the older/earlier snapshot from being received (with EDQUOT). 4500294817Smav * 4501294817Smav * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario. 4502294817Smav * 4503294817Smav * libzfs will need to be judicious handling errors encountered by props 4504294817Smav * extracted by this function. 4505294817Smav */ 4506294817Smavstatic nvlist_t * 4507294817Smavextract_delay_props(nvlist_t *props) 4508294817Smav{ 4509294817Smav nvlist_t *delayprops; 4510294817Smav nvpair_t *nvp, *tmp; 4511294817Smav static const zfs_prop_t delayable[] = { ZFS_PROP_REFQUOTA, 0 }; 4512294817Smav int i; 4513294817Smav 4514294817Smav VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 4515294817Smav 4516294817Smav for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL; 4517294817Smav nvp = nvlist_next_nvpair(props, nvp)) { 4518294817Smav /* 4519294817Smav * strcmp() is safe because zfs_prop_to_name() always returns 4520294817Smav * a bounded string. 4521294817Smav */ 4522294817Smav for (i = 0; delayable[i] != 0; i++) { 4523294817Smav if (strcmp(zfs_prop_to_name(delayable[i]), 4524294817Smav nvpair_name(nvp)) == 0) { 4525294817Smav break; 4526294817Smav } 4527294817Smav } 4528294817Smav if (delayable[i] != 0) { 4529294817Smav tmp = nvlist_prev_nvpair(props, nvp); 4530294817Smav VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0); 4531294817Smav VERIFY(nvlist_remove_nvpair(props, nvp) == 0); 4532294817Smav nvp = tmp; 4533294817Smav } 4534294817Smav } 4535294817Smav 4536294817Smav if (nvlist_empty(delayprops)) { 4537294817Smav nvlist_free(delayprops); 4538294817Smav delayprops = NULL; 4539294817Smav } 4540294817Smav return (delayprops); 4541294817Smav} 4542294817Smav 4543219089Spjd#ifdef DEBUG 4544219089Spjdstatic boolean_t zfs_ioc_recv_inject_err; 4545219089Spjd#endif 4546219089Spjd 4547219089Spjd/* 4548185029Spjd * inputs: 4549185029Spjd * zc_name name of containing filesystem 4550185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 4551185029Spjd * zc_value name of snapshot to create 4552185029Spjd * zc_string name of clone origin (if DRR_FLAG_CLONE) 4553185029Spjd * zc_cookie file descriptor to recv from 4554185029Spjd * zc_begin_record the BEGIN record of the stream (not byteswapped) 4555185029Spjd * zc_guid force flag 4556219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor 4557219089Spjd * zc_action_handle handle for this guid/ds mapping (or zero on first call) 4558289362Smav * zc_resumable if data is incomplete assume sender will resume 4559185029Spjd * 4560185029Spjd * outputs: 4561185029Spjd * zc_cookie number of bytes read 4562219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 4563219089Spjd * zc_obj zprop_errflags_t 4564219089Spjd * zc_action_handle handle for this guid/ds mapping 4565185029Spjd */ 4566168404Spjdstatic int 4567185029Spjdzfs_ioc_recv(zfs_cmd_t *zc) 4568168404Spjd{ 4569185029Spjd file_t *fp; 4570185029Spjd dmu_recv_cookie_t drc; 4571185029Spjd boolean_t force = (boolean_t)zc->zc_guid; 4572219089Spjd int fd; 4573219089Spjd int error = 0; 4574219089Spjd int props_error = 0; 4575219089Spjd nvlist_t *errors; 4576185029Spjd offset_t off; 4577219089Spjd nvlist_t *props = NULL; /* sent properties */ 4578219089Spjd nvlist_t *origprops = NULL; /* existing properties */ 4579294817Smav nvlist_t *delayprops = NULL; /* sent properties applied post-receive */ 4580248571Smm char *origin = NULL; 4581185029Spjd char *tosnap; 4582307108Smav char tofs[ZFS_MAX_DATASET_NAME_LEN]; 4583255219Spjd cap_rights_t rights; 4584219089Spjd boolean_t first_recvd_props = B_FALSE; 4585168404Spjd 4586168404Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 4587185029Spjd strchr(zc->zc_value, '@') == NULL || 4588185029Spjd strchr(zc->zc_value, '%')) 4589249195Smm return (SET_ERROR(EINVAL)); 4590168404Spjd 4591185029Spjd (void) strcpy(tofs, zc->zc_value); 4592185029Spjd tosnap = strchr(tofs, '@'); 4593219089Spjd *tosnap++ = '\0'; 4594185029Spjd 4595185029Spjd if (zc->zc_nvlist_src != 0 && 4596185029Spjd (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 4597219089Spjd zc->zc_iflags, &props)) != 0) 4598168404Spjd return (error); 4599168404Spjd 4600185029Spjd fd = zc->zc_cookie; 4601282766Savg#ifdef illumos 4602282766Savg fp = getf(fd); 4603282766Savg#else 4604282766Savg fget_read(curthread, fd, cap_rights_init(&rights, CAP_PREAD), &fp); 4605282766Savg#endif 4606185029Spjd if (fp == NULL) { 4607185029Spjd nvlist_free(props); 4608249195Smm return (SET_ERROR(EBADF)); 4609185029Spjd } 4610168404Spjd 4611289362Smav errors = fnvlist_alloc(); 4612219089Spjd 4613248571Smm if (zc->zc_string[0]) 4614248571Smm origin = zc->zc_string; 4615248571Smm 4616248571Smm error = dmu_recv_begin(tofs, tosnap, 4617289362Smav &zc->zc_begin_record, force, zc->zc_resumable, origin, &drc); 4618248571Smm if (error != 0) 4619248571Smm goto out; 4620248571Smm 4621248571Smm /* 4622248571Smm * Set properties before we receive the stream so that they are applied 4623248571Smm * to the new data. Note that we must call dmu_recv_stream() if 4624248571Smm * dmu_recv_begin() succeeds. 4625248571Smm */ 4626248571Smm if (props != NULL && !drc.drc_newfs) { 4627248571Smm if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= 4628248571Smm SPA_VERSION_RECVD_PROPS && 4629248571Smm !dsl_prop_get_hasrecvd(tofs)) 4630219089Spjd first_recvd_props = B_TRUE; 4631219089Spjd 4632185029Spjd /* 4633219089Spjd * If new received properties are supplied, they are to 4634219089Spjd * completely replace the existing received properties, so stash 4635219089Spjd * away the existing ones. 4636185029Spjd */ 4637248571Smm if (dsl_prop_get_received(tofs, &origprops) == 0) { 4638219089Spjd nvlist_t *errlist = NULL; 4639219089Spjd /* 4640219089Spjd * Don't bother writing a property if its value won't 4641219089Spjd * change (and avoid the unnecessary security checks). 4642219089Spjd * 4643219089Spjd * The first receive after SPA_VERSION_RECVD_PROPS is a 4644219089Spjd * special case where we blow away all local properties 4645219089Spjd * regardless. 4646219089Spjd */ 4647219089Spjd if (!first_recvd_props) 4648219089Spjd props_reduce(props, origprops); 4649248571Smm if (zfs_check_clearable(tofs, origprops, &errlist) != 0) 4650219089Spjd (void) nvlist_merge(errors, errlist, 0); 4651219089Spjd nvlist_free(errlist); 4652248571Smm 4653248571Smm if (clear_received_props(tofs, origprops, 4654248571Smm first_recvd_props ? NULL : props) != 0) 4655248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4656248571Smm } else { 4657248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4658219089Spjd } 4659185029Spjd } 4660185029Spjd 4661248571Smm if (props != NULL) { 4662248571Smm props_error = dsl_prop_set_hasrecvd(tofs); 4663185029Spjd 4664248571Smm if (props_error == 0) { 4665294817Smav delayprops = extract_delay_props(props); 4666248571Smm (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, 4667248571Smm props, errors); 4668219089Spjd } 4669219089Spjd } 4670219089Spjd 4671185029Spjd off = fp->f_offset; 4672219089Spjd error = dmu_recv_stream(&drc, fp, &off, zc->zc_cleanup_fd, 4673219089Spjd &zc->zc_action_handle); 4674185029Spjd 4675219089Spjd if (error == 0) { 4676219089Spjd zfsvfs_t *zfsvfs = NULL; 4677185029Spjd 4678219089Spjd if (getzfsvfs(tofs, &zfsvfs) == 0) { 4679219089Spjd /* online recv */ 4680310509Savg dsl_dataset_t *ds; 4681219089Spjd int end_err; 4682185029Spjd 4683310509Savg ds = dmu_objset_ds(zfsvfs->z_os); 4684219089Spjd error = zfs_suspend_fs(zfsvfs); 4685219089Spjd /* 4686219089Spjd * If the suspend fails, then the recv_end will 4687219089Spjd * likely also fail, and clean up after itself. 4688219089Spjd */ 4689253816Sdelphij end_err = dmu_recv_end(&drc, zfsvfs); 4690219089Spjd if (error == 0) 4691310509Savg error = zfs_resume_fs(zfsvfs, ds); 4692219089Spjd error = error ? error : end_err; 4693297513Savg#ifdef illumos 4694219089Spjd VFS_RELE(zfsvfs->z_vfs); 4695297513Savg#else 4696297513Savg vfs_unbusy(zfsvfs->z_vfs); 4697297513Savg#endif 4698219089Spjd } else { 4699253816Sdelphij error = dmu_recv_end(&drc, NULL); 4700185029Spjd } 4701294817Smav 4702294817Smav /* Set delayed properties now, after we're done receiving. */ 4703294817Smav if (delayprops != NULL && error == 0) { 4704294817Smav (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, 4705294817Smav delayprops, errors); 4706294817Smav } 4707185029Spjd } 4708185029Spjd 4709294817Smav if (delayprops != NULL) { 4710294817Smav /* 4711294817Smav * Merge delayed props back in with initial props, in case 4712294817Smav * we're DEBUG and zfs_ioc_recv_inject_err is set (which means 4713294817Smav * we have to make sure clear_received_props() includes 4714294817Smav * the delayed properties). 4715294817Smav * 4716294817Smav * Since zfs_ioc_recv_inject_err is only in DEBUG kernels, 4717294817Smav * using ASSERT() will be just like a VERIFY. 4718294817Smav */ 4719294817Smav ASSERT(nvlist_merge(props, delayprops, 0) == 0); 4720294817Smav nvlist_free(delayprops); 4721294817Smav } 4722294817Smav 4723294817Smav /* 4724294817Smav * Now that all props, initial and delayed, are set, report the prop 4725294817Smav * errors to the caller. 4726294817Smav */ 4727294817Smav if (zc->zc_nvlist_dst_size != 0 && 4728294817Smav (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || 4729294817Smav put_nvlist(zc, errors) != 0)) { 4730294817Smav /* 4731294817Smav * Caller made zc->zc_nvlist_dst less than the minimum expected 4732294817Smav * size or supplied an invalid address. 4733294817Smav */ 4734294817Smav props_error = SET_ERROR(EINVAL); 4735294817Smav } 4736294817Smav 4737185029Spjd zc->zc_cookie = off - fp->f_offset; 4738185029Spjd if (off >= 0 && off <= MAXOFFSET_T) 4739185029Spjd fp->f_offset = off; 4740185029Spjd 4741219089Spjd#ifdef DEBUG 4742219089Spjd if (zfs_ioc_recv_inject_err) { 4743219089Spjd zfs_ioc_recv_inject_err = B_FALSE; 4744219089Spjd error = 1; 4745219089Spjd } 4746219089Spjd#endif 4747243497Savg 4748243497Savg#ifdef __FreeBSD__ 4749243497Savg if (error == 0) 4750243497Savg zvol_create_minors(tofs); 4751243497Savg#endif 4752243497Savg 4753185029Spjd /* 4754185029Spjd * On error, restore the original props. 4755185029Spjd */ 4756248571Smm if (error != 0 && props != NULL && !drc.drc_newfs) { 4757248571Smm if (clear_received_props(tofs, props, NULL) != 0) { 4758248571Smm /* 4759248571Smm * We failed to clear the received properties. 4760248571Smm * Since we may have left a $recvd value on the 4761248571Smm * system, we can't clear the $hasrecvd flag. 4762248571Smm */ 4763219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4764248571Smm } else if (first_recvd_props) { 4765248571Smm dsl_prop_unset_hasrecvd(tofs); 4766219089Spjd } 4767219089Spjd 4768219089Spjd if (origprops == NULL && !drc.drc_newfs) { 4769219089Spjd /* We failed to stash the original properties. */ 4770219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4771219089Spjd } 4772219089Spjd 4773219089Spjd /* 4774219089Spjd * dsl_props_set() will not convert RECEIVED to LOCAL on or 4775219089Spjd * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL 4776219089Spjd * explictly if we're restoring local properties cleared in the 4777219089Spjd * first new-style receive. 4778219089Spjd */ 4779219089Spjd if (origprops != NULL && 4780219089Spjd zfs_set_prop_nvlist(tofs, (first_recvd_props ? 4781219089Spjd ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), 4782219089Spjd origprops, NULL) != 0) { 4783219089Spjd /* 4784219089Spjd * We stashed the original properties but failed to 4785219089Spjd * restore them. 4786219089Spjd */ 4787219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4788219089Spjd } 4789185029Spjd } 4790185029Spjdout: 4791185029Spjd nvlist_free(props); 4792185029Spjd nvlist_free(origprops); 4793219089Spjd nvlist_free(errors); 4794219089Spjd releasef(fd); 4795219089Spjd 4796219089Spjd if (error == 0) 4797219089Spjd error = props_error; 4798219089Spjd 4799168404Spjd return (error); 4800168404Spjd} 4801168404Spjd 4802185029Spjd/* 4803185029Spjd * inputs: 4804185029Spjd * zc_name name of snapshot to send 4805185029Spjd * zc_cookie file descriptor to send stream to 4806219089Spjd * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) 4807219089Spjd * zc_sendobj objsetid of snapshot to send 4808219089Spjd * zc_fromobj objsetid of incremental fromsnap (may be zero) 4809228103Smm * zc_guid if set, estimate size of stream only. zc_cookie is ignored. 4810228103Smm * output size in zc_objset_type. 4811274337Sdelphij * zc_flags lzc_send_flags 4812185029Spjd * 4813260183Sdelphij * outputs: 4814260183Sdelphij * zc_objset_type estimated size, if zc_guid is set 4815353339Savg * 4816353339Savg * NOTE: This is no longer the preferred interface, any new functionality 4817353339Savg * should be added to zfs_ioc_send_new() instead. 4818185029Spjd */ 4819168404Spjdstatic int 4820185029Spjdzfs_ioc_send(zfs_cmd_t *zc) 4821168404Spjd{ 4822185029Spjd int error; 4823185029Spjd offset_t off; 4824228103Smm boolean_t estimate = (zc->zc_guid != 0); 4825268075Sdelphij boolean_t embedok = (zc->zc_flags & 0x1); 4826274337Sdelphij boolean_t large_block_ok = (zc->zc_flags & 0x2); 4827321535Smav boolean_t compressok = (zc->zc_flags & 0x4); 4828168404Spjd 4829248571Smm if (zc->zc_obj != 0) { 4830248571Smm dsl_pool_t *dp; 4831248571Smm dsl_dataset_t *tosnap; 4832168404Spjd 4833248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4834248571Smm if (error != 0) 4835248571Smm return (error); 4836168404Spjd 4837248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4838248571Smm if (error != 0) { 4839248571Smm dsl_pool_rele(dp, FTAG); 4840248571Smm return (error); 4841248571Smm } 4842248571Smm 4843248571Smm if (dsl_dir_is_clone(tosnap->ds_dir)) 4844275782Sdelphij zc->zc_fromobj = 4845275782Sdelphij dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; 4846248571Smm dsl_dataset_rele(tosnap, FTAG); 4847248571Smm dsl_pool_rele(dp, FTAG); 4848219089Spjd } 4849219089Spjd 4850248571Smm if (estimate) { 4851248571Smm dsl_pool_t *dp; 4852248571Smm dsl_dataset_t *tosnap; 4853248571Smm dsl_dataset_t *fromsnap = NULL; 4854248571Smm 4855248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4856248571Smm if (error != 0) 4857168404Spjd return (error); 4858248571Smm 4859248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4860248571Smm if (error != 0) { 4861248571Smm dsl_pool_rele(dp, FTAG); 4862219089Spjd return (error); 4863219089Spjd } 4864168404Spjd 4865248571Smm if (zc->zc_fromobj != 0) { 4866248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, 4867248571Smm FTAG, &fromsnap); 4868248571Smm if (error != 0) { 4869248571Smm dsl_dataset_rele(tosnap, FTAG); 4870248571Smm dsl_pool_rele(dp, FTAG); 4871248571Smm return (error); 4872248571Smm } 4873248571Smm } 4874248571Smm 4875321535Smav error = dmu_send_estimate(tosnap, fromsnap, compressok, 4876228103Smm &zc->zc_objset_type); 4877248571Smm 4878248571Smm if (fromsnap != NULL) 4879248571Smm dsl_dataset_rele(fromsnap, FTAG); 4880248571Smm dsl_dataset_rele(tosnap, FTAG); 4881248571Smm dsl_pool_rele(dp, FTAG); 4882228103Smm } else { 4883255219Spjd file_t *fp; 4884255219Spjd cap_rights_t rights; 4885255219Spjd 4886282766Savg#ifdef illumos 4887282766Savg fp = getf(zc->zc_cookie); 4888282766Savg#else 4889282766Savg fget_write(curthread, zc->zc_cookie, 4890282766Savg cap_rights_init(&rights, CAP_WRITE), &fp); 4891282766Savg#endif 4892248571Smm if (fp == NULL) 4893249195Smm return (SET_ERROR(EBADF)); 4894168404Spjd 4895228103Smm off = fp->f_offset; 4896248571Smm error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, 4897321535Smav zc->zc_fromobj, embedok, large_block_ok, compressok, 4898248571Smm#ifdef illumos 4899274337Sdelphij zc->zc_cookie, fp->f_vnode, &off); 4900248571Smm#else 4901274337Sdelphij zc->zc_cookie, fp, &off); 4902248571Smm#endif 4903168404Spjd 4904228103Smm if (off >= 0 && off <= MAXOFFSET_T) 4905228103Smm fp->f_offset = off; 4906228103Smm releasef(zc->zc_cookie); 4907228103Smm } 4908168404Spjd return (error); 4909168404Spjd} 4910168404Spjd 4911235222Smm/* 4912235222Smm * inputs: 4913235222Smm * zc_name name of snapshot on which to report progress 4914235222Smm * zc_cookie file descriptor of send stream 4915235222Smm * 4916235222Smm * outputs: 4917235222Smm * zc_cookie number of bytes written in send stream thus far 4918235222Smm */ 4919168404Spjdstatic int 4920235222Smmzfs_ioc_send_progress(zfs_cmd_t *zc) 4921235222Smm{ 4922248571Smm dsl_pool_t *dp; 4923235222Smm dsl_dataset_t *ds; 4924235222Smm dmu_sendarg_t *dsp = NULL; 4925235222Smm int error; 4926235222Smm 4927248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4928248571Smm if (error != 0) 4929235222Smm return (error); 4930235222Smm 4931248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); 4932248571Smm if (error != 0) { 4933248571Smm dsl_pool_rele(dp, FTAG); 4934248571Smm return (error); 4935248571Smm } 4936248571Smm 4937235222Smm mutex_enter(&ds->ds_sendstream_lock); 4938235222Smm 4939235222Smm /* 4940235222Smm * Iterate over all the send streams currently active on this dataset. 4941235222Smm * If there's one which matches the specified file descriptor _and_ the 4942235222Smm * stream was started by the current process, return the progress of 4943235222Smm * that stream. 4944235222Smm */ 4945235222Smm for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; 4946235222Smm dsp = list_next(&ds->ds_sendstreams, dsp)) { 4947235222Smm if (dsp->dsa_outfd == zc->zc_cookie && 4948235222Smm dsp->dsa_proc == curproc) 4949235222Smm break; 4950235222Smm } 4951235222Smm 4952235222Smm if (dsp != NULL) 4953235222Smm zc->zc_cookie = *(dsp->dsa_off); 4954235222Smm else 4955249195Smm error = SET_ERROR(ENOENT); 4956235222Smm 4957235222Smm mutex_exit(&ds->ds_sendstream_lock); 4958235222Smm dsl_dataset_rele(ds, FTAG); 4959248571Smm dsl_pool_rele(dp, FTAG); 4960235222Smm return (error); 4961235222Smm} 4962235222Smm 4963235222Smmstatic int 4964168404Spjdzfs_ioc_inject_fault(zfs_cmd_t *zc) 4965168404Spjd{ 4966168404Spjd int id, error; 4967168404Spjd 4968168404Spjd error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 4969168404Spjd &zc->zc_inject_record); 4970168404Spjd 4971168404Spjd if (error == 0) 4972168404Spjd zc->zc_guid = (uint64_t)id; 4973168404Spjd 4974168404Spjd return (error); 4975168404Spjd} 4976168404Spjd 4977168404Spjdstatic int 4978168404Spjdzfs_ioc_clear_fault(zfs_cmd_t *zc) 4979168404Spjd{ 4980168404Spjd return (zio_clear_fault((int)zc->zc_guid)); 4981168404Spjd} 4982168404Spjd 4983168404Spjdstatic int 4984168404Spjdzfs_ioc_inject_list_next(zfs_cmd_t *zc) 4985168404Spjd{ 4986168404Spjd int id = (int)zc->zc_guid; 4987168404Spjd int error; 4988168404Spjd 4989168404Spjd error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 4990168404Spjd &zc->zc_inject_record); 4991168404Spjd 4992168404Spjd zc->zc_guid = id; 4993168404Spjd 4994168404Spjd return (error); 4995168404Spjd} 4996168404Spjd 4997168404Spjdstatic int 4998168404Spjdzfs_ioc_error_log(zfs_cmd_t *zc) 4999168404Spjd{ 5000168404Spjd spa_t *spa; 5001168404Spjd int error; 5002168404Spjd size_t count = (size_t)zc->zc_nvlist_dst_size; 5003168404Spjd 5004168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 5005168404Spjd return (error); 5006168404Spjd 5007168404Spjd error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 5008168404Spjd &count); 5009168404Spjd if (error == 0) 5010168404Spjd zc->zc_nvlist_dst_size = count; 5011168404Spjd else 5012168404Spjd zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 5013168404Spjd 5014168404Spjd spa_close(spa, FTAG); 5015168404Spjd 5016168404Spjd return (error); 5017168404Spjd} 5018168404Spjd 5019168404Spjdstatic int 5020168404Spjdzfs_ioc_clear(zfs_cmd_t *zc) 5021168404Spjd{ 5022168404Spjd spa_t *spa; 5023168404Spjd vdev_t *vd; 5024168404Spjd int error; 5025168404Spjd 5026185029Spjd /* 5027185029Spjd * On zpool clear we also fix up missing slogs 5028185029Spjd */ 5029185029Spjd mutex_enter(&spa_namespace_lock); 5030185029Spjd spa = spa_lookup(zc->zc_name); 5031185029Spjd if (spa == NULL) { 5032185029Spjd mutex_exit(&spa_namespace_lock); 5033249195Smm return (SET_ERROR(EIO)); 5034185029Spjd } 5035219089Spjd if (spa_get_log_state(spa) == SPA_LOG_MISSING) { 5036185029Spjd /* we need to let spa_open/spa_load clear the chains */ 5037219089Spjd spa_set_log_state(spa, SPA_LOG_CLEAR); 5038185029Spjd } 5039219089Spjd spa->spa_last_open_failed = 0; 5040185029Spjd mutex_exit(&spa_namespace_lock); 5041185029Spjd 5042219089Spjd if (zc->zc_cookie & ZPOOL_NO_REWIND) { 5043219089Spjd error = spa_open(zc->zc_name, &spa, FTAG); 5044219089Spjd } else { 5045219089Spjd nvlist_t *policy; 5046219089Spjd nvlist_t *config = NULL; 5047219089Spjd 5048219089Spjd if (zc->zc_nvlist_src == 0) 5049249195Smm return (SET_ERROR(EINVAL)); 5050219089Spjd 5051219089Spjd if ((error = get_nvlist(zc->zc_nvlist_src, 5052219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { 5053219089Spjd error = spa_open_rewind(zc->zc_name, &spa, FTAG, 5054219089Spjd policy, &config); 5055219089Spjd if (config != NULL) { 5056219089Spjd int err; 5057219089Spjd 5058219089Spjd if ((err = put_nvlist(zc, config)) != 0) 5059219089Spjd error = err; 5060219089Spjd nvlist_free(config); 5061219089Spjd } 5062219089Spjd nvlist_free(policy); 5063219089Spjd } 5064219089Spjd } 5065219089Spjd 5066248571Smm if (error != 0) 5067168404Spjd return (error); 5068168404Spjd 5069219089Spjd spa_vdev_state_enter(spa, SCL_NONE); 5070168404Spjd 5071168404Spjd if (zc->zc_guid == 0) { 5072168404Spjd vd = NULL; 5073185029Spjd } else { 5074185029Spjd vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); 5075185029Spjd if (vd == NULL) { 5076185029Spjd (void) spa_vdev_state_exit(spa, NULL, ENODEV); 5077185029Spjd spa_close(spa, FTAG); 5078249195Smm return (SET_ERROR(ENODEV)); 5079185029Spjd } 5080168404Spjd } 5081168404Spjd 5082168404Spjd vdev_clear(spa, vd); 5083168404Spjd 5084185029Spjd (void) spa_vdev_state_exit(spa, NULL, 0); 5085168404Spjd 5086185029Spjd /* 5087185029Spjd * Resume any suspended I/Os. 5088185029Spjd */ 5089209962Smm if (zio_resume(spa) != 0) 5090249195Smm error = SET_ERROR(EIO); 5091185029Spjd 5092168404Spjd spa_close(spa, FTAG); 5093168404Spjd 5094209962Smm return (error); 5095168404Spjd} 5096168404Spjd 5097236155Smmstatic int 5098236155Smmzfs_ioc_pool_reopen(zfs_cmd_t *zc) 5099236155Smm{ 5100236155Smm spa_t *spa; 5101236155Smm int error; 5102236155Smm 5103236155Smm error = spa_open(zc->zc_name, &spa, FTAG); 5104248571Smm if (error != 0) 5105236155Smm return (error); 5106236155Smm 5107236155Smm spa_vdev_state_enter(spa, SCL_NONE); 5108240133Smm 5109240133Smm /* 5110240133Smm * If a resilver is already in progress then set the 5111240133Smm * spa_scrub_reopen flag to B_TRUE so that we don't restart 5112240133Smm * the scan as a side effect of the reopen. Otherwise, let 5113240133Smm * vdev_open() decided if a resilver is required. 5114240133Smm */ 5115240133Smm spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); 5116236155Smm vdev_reopen(spa->spa_root_vdev); 5117240133Smm spa->spa_scrub_reopen = B_FALSE; 5118240133Smm 5119236155Smm (void) spa_vdev_state_exit(spa, NULL, 0); 5120236155Smm spa_close(spa, FTAG); 5121236155Smm return (0); 5122236155Smm} 5123185029Spjd/* 5124185029Spjd * inputs: 5125185029Spjd * zc_name name of filesystem 5126185029Spjd * 5127219089Spjd * outputs: 5128219089Spjd * zc_string name of conflicting snapshot, if there is one 5129185029Spjd */ 5130168404Spjdstatic int 5131168404Spjdzfs_ioc_promote(zfs_cmd_t *zc) 5132168404Spjd{ 5133321577Smav dsl_pool_t *dp; 5134321577Smav dsl_dataset_t *ds, *ods; 5135321577Smav char origin[ZFS_MAX_DATASET_NAME_LEN]; 5136168404Spjd char *cp; 5137321577Smav int error; 5138168404Spjd 5139332535Smav zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 5140332535Smav if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 || 5141332535Smav strchr(zc->zc_name, '%')) 5142332535Smav return (SET_ERROR(EINVAL)); 5143332535Smav 5144321577Smav error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 5145321577Smav if (error != 0) 5146321577Smav return (error); 5147321577Smav 5148321577Smav error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); 5149321577Smav if (error != 0) { 5150321577Smav dsl_pool_rele(dp, FTAG); 5151321577Smav return (error); 5152321577Smav } 5153321577Smav 5154321577Smav if (!dsl_dir_is_clone(ds->ds_dir)) { 5155321577Smav dsl_dataset_rele(ds, FTAG); 5156321577Smav dsl_pool_rele(dp, FTAG); 5157321577Smav return (SET_ERROR(EINVAL)); 5158321577Smav } 5159321577Smav 5160321577Smav error = dsl_dataset_hold_obj(dp, 5161321577Smav dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods); 5162321577Smav if (error != 0) { 5163321577Smav dsl_dataset_rele(ds, FTAG); 5164321577Smav dsl_pool_rele(dp, FTAG); 5165321577Smav return (error); 5166321577Smav } 5167321577Smav 5168321577Smav dsl_dataset_name(ods, origin); 5169321577Smav dsl_dataset_rele(ods, FTAG); 5170321577Smav dsl_dataset_rele(ds, FTAG); 5171321577Smav dsl_pool_rele(dp, FTAG); 5172321577Smav 5173168404Spjd /* 5174168404Spjd * We don't need to unmount *all* the origin fs's snapshots, but 5175168404Spjd * it's easier. 5176168404Spjd */ 5177321577Smav cp = strchr(origin, '@'); 5178168404Spjd if (cp) 5179168404Spjd *cp = '\0'; 5180321577Smav (void) dmu_objset_find(origin, 5181248571Smm zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); 5182219089Spjd return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); 5183168404Spjd} 5184168404Spjd 5185185029Spjd/* 5186209962Smm * Retrieve a single {user|group}{used|quota}@... property. 5187209962Smm * 5188209962Smm * inputs: 5189209962Smm * zc_name name of filesystem 5190209962Smm * zc_objset_type zfs_userquota_prop_t 5191209962Smm * zc_value domain name (eg. "S-1-234-567-89") 5192209962Smm * zc_guid RID/UID/GID 5193209962Smm * 5194209962Smm * outputs: 5195209962Smm * zc_cookie property value 5196209962Smm */ 5197209962Smmstatic int 5198209962Smmzfs_ioc_userspace_one(zfs_cmd_t *zc) 5199209962Smm{ 5200209962Smm zfsvfs_t *zfsvfs; 5201209962Smm int error; 5202209962Smm 5203209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 5204249195Smm return (SET_ERROR(EINVAL)); 5205209962Smm 5206219089Spjd error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 5207248571Smm if (error != 0) 5208209962Smm return (error); 5209209962Smm 5210209962Smm error = zfs_userspace_one(zfsvfs, 5211209962Smm zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); 5212209962Smm zfsvfs_rele(zfsvfs, FTAG); 5213209962Smm 5214209962Smm return (error); 5215209962Smm} 5216209962Smm 5217209962Smm/* 5218209962Smm * inputs: 5219209962Smm * zc_name name of filesystem 5220209962Smm * zc_cookie zap cursor 5221209962Smm * zc_objset_type zfs_userquota_prop_t 5222209962Smm * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) 5223209962Smm * 5224209962Smm * outputs: 5225209962Smm * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) 5226209962Smm * zc_cookie zap cursor 5227209962Smm */ 5228209962Smmstatic int 5229209962Smmzfs_ioc_userspace_many(zfs_cmd_t *zc) 5230209962Smm{ 5231209962Smm zfsvfs_t *zfsvfs; 5232219089Spjd int bufsize = zc->zc_nvlist_dst_size; 5233209962Smm 5234219089Spjd if (bufsize <= 0) 5235249195Smm return (SET_ERROR(ENOMEM)); 5236219089Spjd 5237219089Spjd int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 5238248571Smm if (error != 0) 5239209962Smm return (error); 5240209962Smm 5241209962Smm void *buf = kmem_alloc(bufsize, KM_SLEEP); 5242209962Smm 5243209962Smm error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, 5244209962Smm buf, &zc->zc_nvlist_dst_size); 5245209962Smm 5246209962Smm if (error == 0) { 5247221409Smarius error = ddi_copyout(buf, 5248209962Smm (void *)(uintptr_t)zc->zc_nvlist_dst, 5249221409Smarius zc->zc_nvlist_dst_size, zc->zc_iflags); 5250209962Smm } 5251209962Smm kmem_free(buf, bufsize); 5252209962Smm zfsvfs_rele(zfsvfs, FTAG); 5253209962Smm 5254209962Smm return (error); 5255209962Smm} 5256209962Smm 5257209962Smm/* 5258209962Smm * inputs: 5259209962Smm * zc_name name of filesystem 5260209962Smm * 5261209962Smm * outputs: 5262209962Smm * none 5263209962Smm */ 5264209962Smmstatic int 5265209962Smmzfs_ioc_userspace_upgrade(zfs_cmd_t *zc) 5266209962Smm{ 5267209962Smm objset_t *os; 5268219089Spjd int error = 0; 5269209962Smm zfsvfs_t *zfsvfs; 5270209962Smm 5271209962Smm if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { 5272219089Spjd if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { 5273209962Smm /* 5274209962Smm * If userused is not enabled, it may be because the 5275209962Smm * objset needs to be closed & reopened (to grow the 5276209962Smm * objset_phys_t). Suspend/resume the fs will do that. 5277209962Smm */ 5278331611Savg dsl_dataset_t *ds, *newds; 5279310509Savg 5280310509Savg ds = dmu_objset_ds(zfsvfs->z_os); 5281219089Spjd error = zfs_suspend_fs(zfsvfs); 5282253816Sdelphij if (error == 0) { 5283331611Savg dmu_objset_refresh_ownership(ds, &newds, 5284253816Sdelphij zfsvfs); 5285331611Savg error = zfs_resume_fs(zfsvfs, newds); 5286253816Sdelphij } 5287209962Smm } 5288209962Smm if (error == 0) 5289209962Smm error = dmu_objset_userspace_upgrade(zfsvfs->z_os); 5290297513Savg#ifdef illumos 5291209962Smm VFS_RELE(zfsvfs->z_vfs); 5292297513Savg#else 5293297513Savg vfs_unbusy(zfsvfs->z_vfs); 5294297513Savg#endif 5295209962Smm } else { 5296219089Spjd /* XXX kind of reading contents without owning */ 5297219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 5298248571Smm if (error != 0) 5299209962Smm return (error); 5300209962Smm 5301209962Smm error = dmu_objset_userspace_upgrade(os); 5302219089Spjd dmu_objset_rele(os, FTAG); 5303209962Smm } 5304209962Smm 5305209962Smm return (error); 5306209962Smm} 5307209962Smm 5308277300Ssmh#ifdef illumos 5309209962Smm/* 5310185029Spjd * We don't want to have a hard dependency 5311185029Spjd * against some special symbols in sharefs 5312185029Spjd * nfs, and smbsrv. Determine them if needed when 5313185029Spjd * the first file system is shared. 5314185029Spjd * Neither sharefs, nfs or smbsrv are unloadable modules. 5315185029Spjd */ 5316185029Spjdint (*znfsexport_fs)(void *arg); 5317185029Spjdint (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); 5318185029Spjdint (*zsmbexport_fs)(void *arg, boolean_t add_share); 5319185029Spjd 5320185029Spjdint zfs_nfsshare_inited; 5321185029Spjdint zfs_smbshare_inited; 5322185029Spjd 5323185029Spjdddi_modhandle_t nfs_mod; 5324185029Spjdddi_modhandle_t sharefs_mod; 5325185029Spjdddi_modhandle_t smbsrv_mod; 5326277300Ssmh#endif /* illumos */ 5327185029Spjdkmutex_t zfs_share_lock; 5328185029Spjd 5329277300Ssmh#ifdef illumos 5330168404Spjdstatic int 5331185029Spjdzfs_init_sharefs() 5332185029Spjd{ 5333185029Spjd int error; 5334185029Spjd 5335185029Spjd ASSERT(MUTEX_HELD(&zfs_share_lock)); 5336185029Spjd /* Both NFS and SMB shares also require sharetab support. */ 5337185029Spjd if (sharefs_mod == NULL && ((sharefs_mod = 5338185029Spjd ddi_modopen("fs/sharefs", 5339185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 5340249195Smm return (SET_ERROR(ENOSYS)); 5341185029Spjd } 5342185029Spjd if (zshare_fs == NULL && ((zshare_fs = 5343185029Spjd (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) 5344185029Spjd ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { 5345249195Smm return (SET_ERROR(ENOSYS)); 5346185029Spjd } 5347185029Spjd return (0); 5348185029Spjd} 5349277300Ssmh#endif /* illumos */ 5350185029Spjd 5351185029Spjdstatic int 5352185029Spjdzfs_ioc_share(zfs_cmd_t *zc) 5353185029Spjd{ 5354277300Ssmh#ifdef illumos 5355185029Spjd int error; 5356185029Spjd int opcode; 5357185029Spjd 5358185029Spjd switch (zc->zc_share.z_sharetype) { 5359185029Spjd case ZFS_SHARE_NFS: 5360185029Spjd case ZFS_UNSHARE_NFS: 5361185029Spjd if (zfs_nfsshare_inited == 0) { 5362185029Spjd mutex_enter(&zfs_share_lock); 5363185029Spjd if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", 5364185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 5365185029Spjd mutex_exit(&zfs_share_lock); 5366249195Smm return (SET_ERROR(ENOSYS)); 5367185029Spjd } 5368185029Spjd if (znfsexport_fs == NULL && 5369185029Spjd ((znfsexport_fs = (int (*)(void *)) 5370185029Spjd ddi_modsym(nfs_mod, 5371185029Spjd "nfs_export", &error)) == NULL)) { 5372185029Spjd mutex_exit(&zfs_share_lock); 5373249195Smm return (SET_ERROR(ENOSYS)); 5374185029Spjd } 5375185029Spjd error = zfs_init_sharefs(); 5376248571Smm if (error != 0) { 5377185029Spjd mutex_exit(&zfs_share_lock); 5378249195Smm return (SET_ERROR(ENOSYS)); 5379185029Spjd } 5380185029Spjd zfs_nfsshare_inited = 1; 5381185029Spjd mutex_exit(&zfs_share_lock); 5382185029Spjd } 5383185029Spjd break; 5384185029Spjd case ZFS_SHARE_SMB: 5385185029Spjd case ZFS_UNSHARE_SMB: 5386185029Spjd if (zfs_smbshare_inited == 0) { 5387185029Spjd mutex_enter(&zfs_share_lock); 5388185029Spjd if (smbsrv_mod == NULL && ((smbsrv_mod = 5389185029Spjd ddi_modopen("drv/smbsrv", 5390185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 5391185029Spjd mutex_exit(&zfs_share_lock); 5392249195Smm return (SET_ERROR(ENOSYS)); 5393185029Spjd } 5394185029Spjd if (zsmbexport_fs == NULL && ((zsmbexport_fs = 5395185029Spjd (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, 5396185029Spjd "smb_server_share", &error)) == NULL)) { 5397185029Spjd mutex_exit(&zfs_share_lock); 5398249195Smm return (SET_ERROR(ENOSYS)); 5399185029Spjd } 5400185029Spjd error = zfs_init_sharefs(); 5401248571Smm if (error != 0) { 5402185029Spjd mutex_exit(&zfs_share_lock); 5403249195Smm return (SET_ERROR(ENOSYS)); 5404185029Spjd } 5405185029Spjd zfs_smbshare_inited = 1; 5406185029Spjd mutex_exit(&zfs_share_lock); 5407185029Spjd } 5408185029Spjd break; 5409185029Spjd default: 5410249195Smm return (SET_ERROR(EINVAL)); 5411185029Spjd } 5412185029Spjd 5413185029Spjd switch (zc->zc_share.z_sharetype) { 5414185029Spjd case ZFS_SHARE_NFS: 5415185029Spjd case ZFS_UNSHARE_NFS: 5416185029Spjd if (error = 5417185029Spjd znfsexport_fs((void *) 5418185029Spjd (uintptr_t)zc->zc_share.z_exportdata)) 5419185029Spjd return (error); 5420185029Spjd break; 5421185029Spjd case ZFS_SHARE_SMB: 5422185029Spjd case ZFS_UNSHARE_SMB: 5423185029Spjd if (error = zsmbexport_fs((void *) 5424185029Spjd (uintptr_t)zc->zc_share.z_exportdata, 5425185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? 5426209962Smm B_TRUE: B_FALSE)) { 5427185029Spjd return (error); 5428185029Spjd } 5429185029Spjd break; 5430185029Spjd } 5431185029Spjd 5432185029Spjd opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || 5433185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? 5434185029Spjd SHAREFS_ADD : SHAREFS_REMOVE; 5435185029Spjd 5436185029Spjd /* 5437185029Spjd * Add or remove share from sharetab 5438185029Spjd */ 5439185029Spjd error = zshare_fs(opcode, 5440185029Spjd (void *)(uintptr_t)zc->zc_share.z_sharedata, 5441185029Spjd zc->zc_share.z_sharemax); 5442185029Spjd 5443185029Spjd return (error); 5444219089Spjd 5445277300Ssmh#else /* !illumos */ 5446185029Spjd return (ENOSYS); 5447277300Ssmh#endif /* illumos */ 5448185029Spjd} 5449185029Spjd 5450209962Smmace_t full_access[] = { 5451209962Smm {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} 5452209962Smm}; 5453209962Smm 5454219089Spjd/* 5455219089Spjd * inputs: 5456219089Spjd * zc_name name of containing filesystem 5457219089Spjd * zc_obj object # beyond which we want next in-use object # 5458219089Spjd * 5459219089Spjd * outputs: 5460219089Spjd * zc_obj next in-use object # 5461219089Spjd */ 5462219089Spjdstatic int 5463219089Spjdzfs_ioc_next_obj(zfs_cmd_t *zc) 5464219089Spjd{ 5465219089Spjd objset_t *os = NULL; 5466219089Spjd int error; 5467219089Spjd 5468219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 5469248571Smm if (error != 0) 5470219089Spjd return (error); 5471219089Spjd 5472358608Smav error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0); 5473219089Spjd 5474219089Spjd dmu_objset_rele(os, FTAG); 5475219089Spjd return (error); 5476219089Spjd} 5477219089Spjd 5478219089Spjd/* 5479219089Spjd * inputs: 5480219089Spjd * zc_name name of filesystem 5481219089Spjd * zc_value prefix name for snapshot 5482219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor for calling process 5483219089Spjd * 5484219089Spjd * outputs: 5485248571Smm * zc_value short name of new snapshot 5486219089Spjd */ 5487219089Spjdstatic int 5488219089Spjdzfs_ioc_tmp_snapshot(zfs_cmd_t *zc) 5489219089Spjd{ 5490219089Spjd char *snap_name; 5491248571Smm char *hold_name; 5492219089Spjd int error; 5493248571Smm minor_t minor; 5494219089Spjd 5495248571Smm error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); 5496248571Smm if (error != 0) 5497248571Smm return (error); 5498248571Smm 5499219089Spjd snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, 5500219089Spjd (u_longlong_t)ddi_get_lbolt64()); 5501248571Smm hold_name = kmem_asprintf("%%%s", zc->zc_value); 5502219089Spjd 5503248571Smm error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, 5504248571Smm hold_name); 5505248571Smm if (error == 0) 5506248571Smm (void) strcpy(zc->zc_value, snap_name); 5507219089Spjd strfree(snap_name); 5508248571Smm strfree(hold_name); 5509248571Smm zfs_onexit_fd_rele(zc->zc_cleanup_fd); 5510248571Smm return (error); 5511219089Spjd} 5512219089Spjd 5513219089Spjd/* 5514219089Spjd * inputs: 5515219089Spjd * zc_name name of "to" snapshot 5516219089Spjd * zc_value name of "from" snapshot 5517219089Spjd * zc_cookie file descriptor to write diff data on 5518219089Spjd * 5519219089Spjd * outputs: 5520219089Spjd * dmu_diff_record_t's to the file descriptor 5521219089Spjd */ 5522219089Spjdstatic int 5523219089Spjdzfs_ioc_diff(zfs_cmd_t *zc) 5524219089Spjd{ 5525219089Spjd file_t *fp; 5526255219Spjd cap_rights_t rights; 5527219089Spjd offset_t off; 5528219089Spjd int error; 5529219089Spjd 5530282766Savg#ifdef illumos 5531282766Savg fp = getf(zc->zc_cookie); 5532282766Savg#else 5533282766Savg fget_write(curthread, zc->zc_cookie, 5534282766Savg cap_rights_init(&rights, CAP_WRITE), &fp); 5535282766Savg#endif 5536248571Smm if (fp == NULL) 5537249195Smm return (SET_ERROR(EBADF)); 5538219089Spjd 5539219089Spjd off = fp->f_offset; 5540219089Spjd 5541248571Smm#ifdef illumos 5542248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); 5543248571Smm#else 5544248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp, &off); 5545248571Smm#endif 5546219089Spjd 5547219089Spjd if (off >= 0 && off <= MAXOFFSET_T) 5548219089Spjd fp->f_offset = off; 5549219089Spjd releasef(zc->zc_cookie); 5550219089Spjd 5551219089Spjd return (error); 5552219089Spjd} 5553219089Spjd 5554277300Ssmh#ifdef illumos 5555185029Spjd/* 5556209962Smm * Remove all ACL files in shares dir 5557209962Smm */ 5558209962Smmstatic int 5559209962Smmzfs_smb_acl_purge(znode_t *dzp) 5560209962Smm{ 5561209962Smm zap_cursor_t zc; 5562209962Smm zap_attribute_t zap; 5563209962Smm zfsvfs_t *zfsvfs = dzp->z_zfsvfs; 5564209962Smm int error; 5565209962Smm 5566209962Smm for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); 5567209962Smm (error = zap_cursor_retrieve(&zc, &zap)) == 0; 5568209962Smm zap_cursor_advance(&zc)) { 5569209962Smm if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, 5570209962Smm NULL, 0)) != 0) 5571209962Smm break; 5572209962Smm } 5573209962Smm zap_cursor_fini(&zc); 5574209962Smm return (error); 5575209962Smm} 5576277300Ssmh#endif /* illumos */ 5577209962Smm 5578209962Smmstatic int 5579209962Smmzfs_ioc_smb_acl(zfs_cmd_t *zc) 5580209962Smm{ 5581277300Ssmh#ifdef illumos 5582209962Smm vnode_t *vp; 5583209962Smm znode_t *dzp; 5584209962Smm vnode_t *resourcevp = NULL; 5585209962Smm znode_t *sharedir; 5586209962Smm zfsvfs_t *zfsvfs; 5587209962Smm nvlist_t *nvlist; 5588209962Smm char *src, *target; 5589209962Smm vattr_t vattr; 5590209962Smm vsecattr_t vsec; 5591209962Smm int error = 0; 5592209962Smm 5593209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 5594209962Smm NO_FOLLOW, NULL, &vp)) != 0) 5595209962Smm return (error); 5596209962Smm 5597209962Smm /* Now make sure mntpnt and dataset are ZFS */ 5598209962Smm 5599219089Spjd if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 5600209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 5601209962Smm zc->zc_name) != 0)) { 5602209962Smm VN_RELE(vp); 5603249195Smm return (SET_ERROR(EINVAL)); 5604209962Smm } 5605209962Smm 5606209962Smm dzp = VTOZ(vp); 5607209962Smm zfsvfs = dzp->z_zfsvfs; 5608209962Smm ZFS_ENTER(zfsvfs); 5609209962Smm 5610209962Smm /* 5611209962Smm * Create share dir if its missing. 5612209962Smm */ 5613209962Smm mutex_enter(&zfsvfs->z_lock); 5614209962Smm if (zfsvfs->z_shares_dir == 0) { 5615209962Smm dmu_tx_t *tx; 5616209962Smm 5617209962Smm tx = dmu_tx_create(zfsvfs->z_os); 5618209962Smm dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, 5619209962Smm ZFS_SHARES_DIR); 5620209962Smm dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); 5621209962Smm error = dmu_tx_assign(tx, TXG_WAIT); 5622248571Smm if (error != 0) { 5623209962Smm dmu_tx_abort(tx); 5624209962Smm } else { 5625209962Smm error = zfs_create_share_dir(zfsvfs, tx); 5626209962Smm dmu_tx_commit(tx); 5627209962Smm } 5628248571Smm if (error != 0) { 5629209962Smm mutex_exit(&zfsvfs->z_lock); 5630209962Smm VN_RELE(vp); 5631209962Smm ZFS_EXIT(zfsvfs); 5632209962Smm return (error); 5633209962Smm } 5634209962Smm } 5635209962Smm mutex_exit(&zfsvfs->z_lock); 5636209962Smm 5637209962Smm ASSERT(zfsvfs->z_shares_dir); 5638209962Smm if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { 5639209962Smm VN_RELE(vp); 5640209962Smm ZFS_EXIT(zfsvfs); 5641209962Smm return (error); 5642209962Smm } 5643209962Smm 5644209962Smm switch (zc->zc_cookie) { 5645209962Smm case ZFS_SMB_ACL_ADD: 5646209962Smm vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; 5647209962Smm vattr.va_type = VREG; 5648209962Smm vattr.va_mode = S_IFREG|0777; 5649209962Smm vattr.va_uid = 0; 5650209962Smm vattr.va_gid = 0; 5651209962Smm 5652209962Smm vsec.vsa_mask = VSA_ACE; 5653209962Smm vsec.vsa_aclentp = &full_access; 5654209962Smm vsec.vsa_aclentsz = sizeof (full_access); 5655209962Smm vsec.vsa_aclcnt = 1; 5656209962Smm 5657209962Smm error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, 5658209962Smm &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); 5659209962Smm if (resourcevp) 5660209962Smm VN_RELE(resourcevp); 5661209962Smm break; 5662209962Smm 5663209962Smm case ZFS_SMB_ACL_REMOVE: 5664209962Smm error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, 5665209962Smm NULL, 0); 5666209962Smm break; 5667209962Smm 5668209962Smm case ZFS_SMB_ACL_RENAME: 5669209962Smm if ((error = get_nvlist(zc->zc_nvlist_src, 5670219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { 5671209962Smm VN_RELE(vp); 5672286712Smav VN_RELE(ZTOV(sharedir)); 5673209962Smm ZFS_EXIT(zfsvfs); 5674209962Smm return (error); 5675209962Smm } 5676209962Smm if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || 5677209962Smm nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, 5678209962Smm &target)) { 5679209962Smm VN_RELE(vp); 5680209962Smm VN_RELE(ZTOV(sharedir)); 5681209962Smm ZFS_EXIT(zfsvfs); 5682219089Spjd nvlist_free(nvlist); 5683209962Smm return (error); 5684209962Smm } 5685209962Smm error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, 5686209962Smm kcred, NULL, 0); 5687209962Smm nvlist_free(nvlist); 5688209962Smm break; 5689209962Smm 5690209962Smm case ZFS_SMB_ACL_PURGE: 5691209962Smm error = zfs_smb_acl_purge(sharedir); 5692209962Smm break; 5693209962Smm 5694209962Smm default: 5695249195Smm error = SET_ERROR(EINVAL); 5696209962Smm break; 5697209962Smm } 5698209962Smm 5699209962Smm VN_RELE(vp); 5700209962Smm VN_RELE(ZTOV(sharedir)); 5701209962Smm 5702209962Smm ZFS_EXIT(zfsvfs); 5703209962Smm 5704209962Smm return (error); 5705277300Ssmh#else /* !illumos */ 5706209962Smm return (EOPNOTSUPP); 5707277300Ssmh#endif /* illumos */ 5708209962Smm} 5709209962Smm 5710209962Smm/* 5711248571Smm * innvl: { 5712248571Smm * "holds" -> { snapname -> holdname (string), ... } 5713248571Smm * (optional) "cleanup_fd" -> fd (int32) 5714248571Smm * } 5715219089Spjd * 5716248571Smm * outnvl: { 5717248571Smm * snapname -> error value (int32) 5718248571Smm * ... 5719248571Smm * } 5720219089Spjd */ 5721248571Smm/* ARGSUSED */ 5722219089Spjdstatic int 5723248571Smmzfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) 5724219089Spjd{ 5725284303Savg nvpair_t *pair; 5726248571Smm nvlist_t *holds; 5727248571Smm int cleanup_fd = -1; 5728219089Spjd int error; 5729219089Spjd minor_t minor = 0; 5730219089Spjd 5731248571Smm error = nvlist_lookup_nvlist(args, "holds", &holds); 5732248571Smm if (error != 0) 5733249195Smm return (SET_ERROR(EINVAL)); 5734219089Spjd 5735284303Savg /* make sure the user didn't pass us any invalid (empty) tags */ 5736284303Savg for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; 5737284303Savg pair = nvlist_next_nvpair(holds, pair)) { 5738284303Savg char *htag; 5739284303Savg 5740284303Savg error = nvpair_value_string(pair, &htag); 5741284303Savg if (error != 0) 5742284303Savg return (SET_ERROR(error)); 5743284303Savg 5744284303Savg if (strlen(htag) == 0) 5745284303Savg return (SET_ERROR(EINVAL)); 5746284303Savg } 5747284303Savg 5748248571Smm if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { 5749248571Smm error = zfs_onexit_fd_hold(cleanup_fd, &minor); 5750248571Smm if (error != 0) 5751219089Spjd return (error); 5752219089Spjd } 5753219089Spjd 5754248571Smm error = dsl_dataset_user_hold(holds, minor, errlist); 5755248571Smm if (minor != 0) 5756248571Smm zfs_onexit_fd_rele(cleanup_fd); 5757219089Spjd return (error); 5758219089Spjd} 5759219089Spjd 5760219089Spjd/* 5761248571Smm * innvl is not used. 5762219089Spjd * 5763248571Smm * outnvl: { 5764248571Smm * holdname -> time added (uint64 seconds since epoch) 5765248571Smm * ... 5766248571Smm * } 5767219089Spjd */ 5768248571Smm/* ARGSUSED */ 5769219089Spjdstatic int 5770248571Smmzfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) 5771219089Spjd{ 5772248571Smm return (dsl_dataset_get_holds(snapname, outnvl)); 5773219089Spjd} 5774219089Spjd 5775219089Spjd/* 5776248571Smm * innvl: { 5777248571Smm * snapname -> { holdname, ... } 5778248571Smm * ... 5779248571Smm * } 5780219089Spjd * 5781248571Smm * outnvl: { 5782248571Smm * snapname -> error value (int32) 5783248571Smm * ... 5784248571Smm * } 5785219089Spjd */ 5786248571Smm/* ARGSUSED */ 5787219089Spjdstatic int 5788248571Smmzfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) 5789219089Spjd{ 5790248571Smm return (dsl_dataset_user_release(holds, errlist)); 5791219089Spjd} 5792219089Spjd 5793219089Spjd/* 5794228103Smm * inputs: 5795228103Smm * zc_name name of new filesystem or snapshot 5796228103Smm * zc_value full name of old snapshot 5797228103Smm * 5798228103Smm * outputs: 5799228103Smm * zc_cookie space in bytes 5800228103Smm * zc_objset_type compressed space in bytes 5801228103Smm * zc_perm_action uncompressed space in bytes 5802228103Smm */ 5803228103Smmstatic int 5804228103Smmzfs_ioc_space_written(zfs_cmd_t *zc) 5805228103Smm{ 5806228103Smm int error; 5807248571Smm dsl_pool_t *dp; 5808228103Smm dsl_dataset_t *new, *old; 5809228103Smm 5810248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 5811228103Smm if (error != 0) 5812228103Smm return (error); 5813248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); 5814228103Smm if (error != 0) { 5815248571Smm dsl_pool_rele(dp, FTAG); 5816248571Smm return (error); 5817248571Smm } 5818248571Smm error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); 5819248571Smm if (error != 0) { 5820228103Smm dsl_dataset_rele(new, FTAG); 5821248571Smm dsl_pool_rele(dp, FTAG); 5822228103Smm return (error); 5823228103Smm } 5824228103Smm 5825228103Smm error = dsl_dataset_space_written(old, new, &zc->zc_cookie, 5826228103Smm &zc->zc_objset_type, &zc->zc_perm_action); 5827228103Smm dsl_dataset_rele(old, FTAG); 5828228103Smm dsl_dataset_rele(new, FTAG); 5829248571Smm dsl_pool_rele(dp, FTAG); 5830228103Smm return (error); 5831228103Smm} 5832228103Smm 5833228103Smm/* 5834248571Smm * innvl: { 5835248571Smm * "firstsnap" -> snapshot name 5836248571Smm * } 5837228103Smm * 5838248571Smm * outnvl: { 5839248571Smm * "used" -> space in bytes 5840248571Smm * "compressed" -> compressed space in bytes 5841248571Smm * "uncompressed" -> uncompressed space in bytes 5842248571Smm * } 5843228103Smm */ 5844228103Smmstatic int 5845248571Smmzfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) 5846228103Smm{ 5847228103Smm int error; 5848248571Smm dsl_pool_t *dp; 5849228103Smm dsl_dataset_t *new, *old; 5850248571Smm char *firstsnap; 5851248571Smm uint64_t used, comp, uncomp; 5852228103Smm 5853248571Smm if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) 5854249195Smm return (SET_ERROR(EINVAL)); 5855248571Smm 5856248571Smm error = dsl_pool_hold(lastsnap, FTAG, &dp); 5857228103Smm if (error != 0) 5858228103Smm return (error); 5859248571Smm 5860248571Smm error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); 5861286575Smav if (error == 0 && !new->ds_is_snapshot) { 5862284301Savg dsl_dataset_rele(new, FTAG); 5863284301Savg error = SET_ERROR(EINVAL); 5864284301Savg } 5865228103Smm if (error != 0) { 5866248571Smm dsl_pool_rele(dp, FTAG); 5867248571Smm return (error); 5868248571Smm } 5869248571Smm error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); 5870286575Smav if (error == 0 && !old->ds_is_snapshot) { 5871284301Savg dsl_dataset_rele(old, FTAG); 5872284301Savg error = SET_ERROR(EINVAL); 5873284301Savg } 5874248571Smm if (error != 0) { 5875228103Smm dsl_dataset_rele(new, FTAG); 5876248571Smm dsl_pool_rele(dp, FTAG); 5877228103Smm return (error); 5878228103Smm } 5879228103Smm 5880248571Smm error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); 5881228103Smm dsl_dataset_rele(old, FTAG); 5882228103Smm dsl_dataset_rele(new, FTAG); 5883248571Smm dsl_pool_rele(dp, FTAG); 5884248571Smm fnvlist_add_uint64(outnvl, "used", used); 5885248571Smm fnvlist_add_uint64(outnvl, "compressed", comp); 5886248571Smm fnvlist_add_uint64(outnvl, "uncompressed", uncomp); 5887228103Smm return (error); 5888228103Smm} 5889228103Smm 5890185029Spjdstatic int 5891168404Spjdzfs_ioc_jail(zfs_cmd_t *zc) 5892168404Spjd{ 5893168404Spjd 5894185029Spjd return (zone_dataset_attach(curthread->td_ucred, zc->zc_name, 5895185029Spjd (int)zc->zc_jailid)); 5896168404Spjd} 5897168404Spjd 5898168404Spjdstatic int 5899168404Spjdzfs_ioc_unjail(zfs_cmd_t *zc) 5900168404Spjd{ 5901168404Spjd 5902185029Spjd return (zone_dataset_detach(curthread->td_ucred, zc->zc_name, 5903185029Spjd (int)zc->zc_jailid)); 5904168404Spjd} 5905168404Spjd 5906248571Smm/* 5907248571Smm * innvl: { 5908248571Smm * "fd" -> file descriptor to write stream to (int32) 5909248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5910274337Sdelphij * (optional) "largeblockok" -> (value ignored) 5911274337Sdelphij * indicates that blocks > 128KB are permitted 5912268075Sdelphij * (optional) "embedok" -> (value ignored) 5913268075Sdelphij * presence indicates DRR_WRITE_EMBEDDED records are permitted 5914321535Smav * (optional) "compressok" -> (value ignored) 5915321535Smav * presence indicates compressed DRR_WRITE records are permitted 5916289362Smav * (optional) "resume_object" and "resume_offset" -> (uint64) 5917289362Smav * if present, resume send stream from specified object and offset. 5918248571Smm * } 5919248571Smm * 5920248571Smm * outnvl is unused 5921248571Smm */ 5922248571Smm/* ARGSUSED */ 5923248571Smmstatic int 5924248571Smmzfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5925248571Smm{ 5926255219Spjd cap_rights_t rights; 5927282766Savg file_t *fp; 5928248571Smm int error; 5929248571Smm offset_t off; 5930248571Smm char *fromname = NULL; 5931248571Smm int fd; 5932274337Sdelphij boolean_t largeblockok; 5933268075Sdelphij boolean_t embedok; 5934321535Smav boolean_t compressok; 5935289362Smav uint64_t resumeobj = 0; 5936289362Smav uint64_t resumeoff = 0; 5937168404Spjd 5938248571Smm error = nvlist_lookup_int32(innvl, "fd", &fd); 5939248571Smm if (error != 0) 5940249195Smm return (SET_ERROR(EINVAL)); 5941248571Smm 5942248571Smm (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); 5943248571Smm 5944274337Sdelphij largeblockok = nvlist_exists(innvl, "largeblockok"); 5945268075Sdelphij embedok = nvlist_exists(innvl, "embedok"); 5946321535Smav compressok = nvlist_exists(innvl, "compressok"); 5947268075Sdelphij 5948289362Smav (void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj); 5949289362Smav (void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff); 5950289362Smav 5951282766Savg#ifdef illumos 5952282766Savg file_t *fp = getf(fd); 5953282766Savg#else 5954282766Savg fget_write(curthread, fd, cap_rights_init(&rights, CAP_WRITE), &fp); 5955282766Savg#endif 5956248571Smm if (fp == NULL) 5957249195Smm return (SET_ERROR(EBADF)); 5958248571Smm 5959248571Smm off = fp->f_offset; 5960321535Smav error = dmu_send(snapname, fromname, embedok, largeblockok, compressok, 5961248571Smm#ifdef illumos 5962321535Smav fd, resumeobj, resumeoff, fp->f_vnode, &off); 5963248571Smm#else 5964321535Smav fd, resumeobj, resumeoff, fp, &off); 5965248571Smm#endif 5966248571Smm 5967248571Smm#ifdef illumos 5968248571Smm if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) 5969248571Smm fp->f_offset = off; 5970248571Smm#else 5971248571Smm fp->f_offset = off; 5972248571Smm#endif 5973248571Smm 5974248571Smm releasef(fd); 5975248571Smm return (error); 5976248571Smm} 5977248571Smm 5978248571Smm/* 5979248571Smm * Determine approximately how large a zfs send stream will be -- the number 5980248571Smm * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). 5981248571Smm * 5982248571Smm * innvl: { 5983286683Smav * (optional) "from" -> full snap or bookmark name to send an incremental 5984286683Smav * from 5985321535Smav * (optional) "largeblockok" -> (value ignored) 5986321535Smav * indicates that blocks > 128KB are permitted 5987321535Smav * (optional) "embedok" -> (value ignored) 5988321535Smav * presence indicates DRR_WRITE_EMBEDDED records are permitted 5989321535Smav * (optional) "compressok" -> (value ignored) 5990321535Smav * presence indicates compressed DRR_WRITE records are permitted 5991248571Smm * } 5992248571Smm * 5993248571Smm * outnvl: { 5994248571Smm * "space" -> bytes of space (uint64) 5995248571Smm * } 5996248571Smm */ 5997248571Smmstatic int 5998248571Smmzfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5999248571Smm{ 6000248571Smm dsl_pool_t *dp; 6001248571Smm dsl_dataset_t *tosnap; 6002248571Smm int error; 6003248571Smm char *fromname; 6004321535Smav boolean_t compressok; 6005248571Smm uint64_t space; 6006248571Smm 6007248571Smm error = dsl_pool_hold(snapname, FTAG, &dp); 6008248571Smm if (error != 0) 6009248571Smm return (error); 6010248571Smm 6011248571Smm error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); 6012248571Smm if (error != 0) { 6013248571Smm dsl_pool_rele(dp, FTAG); 6014248571Smm return (error); 6015248571Smm } 6016248571Smm 6017321535Smav compressok = nvlist_exists(innvl, "compressok"); 6018321535Smav 6019286683Smav error = nvlist_lookup_string(innvl, "from", &fromname); 6020248571Smm if (error == 0) { 6021286683Smav if (strchr(fromname, '@') != NULL) { 6022286683Smav /* 6023286683Smav * If from is a snapshot, hold it and use the more 6024286683Smav * efficient dmu_send_estimate to estimate send space 6025286683Smav * size using deadlists. 6026286683Smav */ 6027286683Smav dsl_dataset_t *fromsnap; 6028286683Smav error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); 6029286683Smav if (error != 0) 6030286683Smav goto out; 6031321535Smav error = dmu_send_estimate(tosnap, fromsnap, compressok, 6032321535Smav &space); 6033286683Smav dsl_dataset_rele(fromsnap, FTAG); 6034286683Smav } else if (strchr(fromname, '#') != NULL) { 6035286683Smav /* 6036286683Smav * If from is a bookmark, fetch the creation TXG of the 6037286683Smav * snapshot it was created from and use that to find 6038286683Smav * blocks that were born after it. 6039286683Smav */ 6040286683Smav zfs_bookmark_phys_t frombm; 6041286683Smav 6042286683Smav error = dsl_bookmark_lookup(dp, fromname, tosnap, 6043286683Smav &frombm); 6044286683Smav if (error != 0) 6045286683Smav goto out; 6046286683Smav error = dmu_send_estimate_from_txg(tosnap, 6047321535Smav frombm.zbm_creation_txg, compressok, &space); 6048286683Smav } else { 6049286683Smav /* 6050286683Smav * from is not properly formatted as a snapshot or 6051286683Smav * bookmark 6052286683Smav */ 6053286683Smav error = SET_ERROR(EINVAL); 6054286683Smav goto out; 6055248571Smm } 6056286683Smav } else { 6057325911Savg /* 6058325911Savg * If estimating the size of a full send, use dmu_send_estimate. 6059325911Savg */ 6060321535Smav error = dmu_send_estimate(tosnap, NULL, compressok, &space); 6061248571Smm } 6062248571Smm 6063248571Smm fnvlist_add_uint64(outnvl, "space", space); 6064248571Smm 6065286683Smavout: 6066248571Smm dsl_dataset_rele(tosnap, FTAG); 6067248571Smm dsl_pool_rele(dp, FTAG); 6068248571Smm return (error); 6069248571Smm} 6070248571Smm 6071248571Smmstatic zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; 6072248571Smm 6073248571Smmstatic void 6074248571Smmzfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 6075248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 6076248571Smm boolean_t log_history, zfs_ioc_poolcheck_t pool_check) 6077248571Smm{ 6078248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 6079248571Smm 6080248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 6081248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 6082248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 6083248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 6084248571Smm 6085248571Smm vec->zvec_legacy_func = func; 6086248571Smm vec->zvec_secpolicy = secpolicy; 6087248571Smm vec->zvec_namecheck = namecheck; 6088248571Smm vec->zvec_allow_log = log_history; 6089248571Smm vec->zvec_pool_check = pool_check; 6090248571Smm} 6091248571Smm 6092248571Smm/* 6093248571Smm * See the block comment at the beginning of this file for details on 6094248571Smm * each argument to this function. 6095248571Smm */ 6096248571Smmstatic void 6097248571Smmzfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, 6098248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 6099248571Smm zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, 6100248571Smm boolean_t allow_log) 6101248571Smm{ 6102248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 6103248571Smm 6104248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 6105248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 6106248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 6107248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 6108248571Smm 6109248571Smm /* if we are logging, the name must be valid */ 6110248571Smm ASSERT(!allow_log || namecheck != NO_NAME); 6111248571Smm 6112248571Smm vec->zvec_name = name; 6113248571Smm vec->zvec_func = func; 6114248571Smm vec->zvec_secpolicy = secpolicy; 6115248571Smm vec->zvec_namecheck = namecheck; 6116248571Smm vec->zvec_pool_check = pool_check; 6117248571Smm vec->zvec_smush_outnvlist = smush_outnvlist; 6118248571Smm vec->zvec_allow_log = allow_log; 6119248571Smm} 6120248571Smm 6121248571Smmstatic void 6122248571Smmzfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 6123248571Smm zfs_secpolicy_func_t *secpolicy, boolean_t log_history, 6124248571Smm zfs_ioc_poolcheck_t pool_check) 6125248571Smm{ 6126248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 6127248571Smm POOL_NAME, log_history, pool_check); 6128248571Smm} 6129248571Smm 6130248571Smmstatic void 6131248571Smmzfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 6132248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) 6133248571Smm{ 6134248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 6135248571Smm DATASET_NAME, B_FALSE, pool_check); 6136248571Smm} 6137248571Smm 6138248571Smmstatic void 6139248571Smmzfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 6140248571Smm{ 6141248571Smm zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, 6142248571Smm POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 6143248571Smm} 6144248571Smm 6145248571Smmstatic void 6146248571Smmzfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 6147248571Smm zfs_secpolicy_func_t *secpolicy) 6148248571Smm{ 6149248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 6150248571Smm NO_NAME, B_FALSE, POOL_CHECK_NONE); 6151248571Smm} 6152248571Smm 6153248571Smmstatic void 6154248571Smmzfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, 6155248571Smm zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) 6156248571Smm{ 6157248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 6158248571Smm DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); 6159248571Smm} 6160248571Smm 6161248571Smmstatic void 6162248571Smmzfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 6163248571Smm{ 6164248571Smm zfs_ioctl_register_dataset_read_secpolicy(ioc, func, 6165248571Smm zfs_secpolicy_read); 6166248571Smm} 6167248571Smm 6168248571Smmstatic void 6169248571Smmzfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 6170289562Smav zfs_secpolicy_func_t *secpolicy) 6171248571Smm{ 6172248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 6173248571Smm DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 6174248571Smm} 6175248571Smm 6176248571Smmstatic void 6177248571Smmzfs_ioctl_init(void) 6178248571Smm{ 6179248571Smm zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, 6180248571Smm zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, 6181248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6182248571Smm 6183248571Smm zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, 6184248571Smm zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, 6185248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); 6186248571Smm 6187248571Smm zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, 6188248571Smm zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, 6189248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 6190248571Smm 6191248571Smm zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, 6192248571Smm zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, 6193248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 6194248571Smm 6195248571Smm zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, 6196248571Smm zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, 6197248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 6198248571Smm 6199248571Smm zfs_ioctl_register("create", ZFS_IOC_CREATE, 6200248571Smm zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, 6201248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6202248571Smm 6203248571Smm zfs_ioctl_register("clone", ZFS_IOC_CLONE, 6204248571Smm zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, 6205248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6206248571Smm 6207332525Smav zfs_ioctl_register("remap", ZFS_IOC_REMAP, 6208332525Smav zfs_ioc_remap, zfs_secpolicy_remap, DATASET_NAME, 6209332525Smav POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); 6210332525Smav 6211248571Smm zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, 6212248571Smm zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, 6213248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6214248571Smm 6215248571Smm zfs_ioctl_register("hold", ZFS_IOC_HOLD, 6216248571Smm zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, 6217248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6218248571Smm zfs_ioctl_register("release", ZFS_IOC_RELEASE, 6219248571Smm zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, 6220248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6221248571Smm 6222248571Smm zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, 6223248571Smm zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, 6224248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 6225248571Smm 6226254587Sdelphij zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, 6227254587Sdelphij zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, 6228254587Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); 6229254587Sdelphij 6230260183Sdelphij zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, 6231260183Sdelphij zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, 6232260183Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6233260183Sdelphij 6234260183Sdelphij zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, 6235260183Sdelphij zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, 6236260183Sdelphij POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 6237260183Sdelphij 6238260183Sdelphij zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, 6239260183Sdelphij zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, 6240260183Sdelphij POOL_NAME, 6241260183Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6242260183Sdelphij 6243325534Savg zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM, 6244325534Savg zfs_ioc_channel_program, zfs_secpolicy_config, 6245325534Savg POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, 6246325534Savg B_TRUE); 6247325534Savg 6248332547Smav zfs_ioctl_register("zpool_checkpoint", ZFS_IOC_POOL_CHECKPOINT, 6249332547Smav zfs_ioc_pool_checkpoint, zfs_secpolicy_config, POOL_NAME, 6250332547Smav POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6251332547Smav 6252332547Smav zfs_ioctl_register("zpool_discard_checkpoint", 6253332547Smav ZFS_IOC_POOL_DISCARD_CHECKPOINT, zfs_ioc_pool_discard_checkpoint, 6254332547Smav zfs_secpolicy_config, POOL_NAME, 6255332547Smav POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6256332547Smav 6257339111Smav zfs_ioctl_register("initialize", ZFS_IOC_POOL_INITIALIZE, 6258339111Smav zfs_ioc_pool_initialize, zfs_secpolicy_config, POOL_NAME, 6259339111Smav POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 6260339111Smav 6261248571Smm /* IOCTLS that use the legacy function signature */ 6262248571Smm 6263248571Smm zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, 6264248571Smm zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); 6265248571Smm 6266248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, 6267248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 6268248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, 6269248571Smm zfs_ioc_pool_scan); 6270248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, 6271248571Smm zfs_ioc_pool_upgrade); 6272248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, 6273248571Smm zfs_ioc_vdev_add); 6274248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, 6275248571Smm zfs_ioc_vdev_remove); 6276248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, 6277248571Smm zfs_ioc_vdev_set_state); 6278248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, 6279248571Smm zfs_ioc_vdev_attach); 6280248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, 6281248571Smm zfs_ioc_vdev_detach); 6282248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, 6283248571Smm zfs_ioc_vdev_setpath); 6284248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, 6285248571Smm zfs_ioc_vdev_setfru); 6286248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, 6287248571Smm zfs_ioc_pool_set_props); 6288248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, 6289248571Smm zfs_ioc_vdev_split); 6290248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, 6291248571Smm zfs_ioc_pool_reguid); 6292248571Smm 6293248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, 6294248571Smm zfs_ioc_pool_configs, zfs_secpolicy_none); 6295248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, 6296248571Smm zfs_ioc_pool_tryimport, zfs_secpolicy_config); 6297248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, 6298248571Smm zfs_ioc_inject_fault, zfs_secpolicy_inject); 6299248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, 6300248571Smm zfs_ioc_clear_fault, zfs_secpolicy_inject); 6301248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, 6302248571Smm zfs_ioc_inject_list_next, zfs_secpolicy_inject); 6303248571Smm 6304248571Smm /* 6305248571Smm * pool destroy, and export don't log the history as part of 6306248571Smm * zfsdev_ioctl, but rather zfs_ioc_pool_export 6307248571Smm * does the logging of those commands. 6308248571Smm */ 6309248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, 6310248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 6311248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, 6312248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 6313248571Smm 6314248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, 6315248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 6316248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, 6317248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 6318248571Smm 6319248571Smm zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, 6320253806Smav zfs_secpolicy_inject, B_FALSE, POOL_CHECK_NONE); 6321248571Smm zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, 6322248571Smm zfs_ioc_dsobj_to_dsname, 6323253806Smav zfs_secpolicy_diff, B_FALSE, POOL_CHECK_NONE); 6324248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, 6325248571Smm zfs_ioc_pool_get_history, 6326248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); 6327248571Smm 6328248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, 6329248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 6330248571Smm 6331248571Smm zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, 6332332534Smav zfs_secpolicy_config, B_TRUE, POOL_CHECK_READONLY); 6333248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, 6334248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); 6335248571Smm 6336248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, 6337248571Smm zfs_ioc_space_written); 6338248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, 6339248571Smm zfs_ioc_objset_recvd_props); 6340248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, 6341248571Smm zfs_ioc_next_obj); 6342248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, 6343248571Smm zfs_ioc_get_fsacl); 6344248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, 6345248571Smm zfs_ioc_objset_stats); 6346248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, 6347248571Smm zfs_ioc_objset_zplprops); 6348248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, 6349248571Smm zfs_ioc_dataset_list_next); 6350248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, 6351248571Smm zfs_ioc_snapshot_list_next); 6352248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, 6353248571Smm zfs_ioc_send_progress); 6354248571Smm 6355248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, 6356248571Smm zfs_ioc_diff, zfs_secpolicy_diff); 6357248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, 6358248571Smm zfs_ioc_obj_to_stats, zfs_secpolicy_diff); 6359248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, 6360248571Smm zfs_ioc_obj_to_path, zfs_secpolicy_diff); 6361248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, 6362248571Smm zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); 6363248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, 6364248571Smm zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); 6365248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, 6366248571Smm zfs_ioc_send, zfs_secpolicy_send); 6367248571Smm 6368248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, 6369248571Smm zfs_secpolicy_none); 6370248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, 6371248571Smm zfs_secpolicy_destroy); 6372248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, 6373248571Smm zfs_secpolicy_recv); 6374248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, 6375248571Smm zfs_secpolicy_promote); 6376248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, 6377248571Smm zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); 6378248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, 6379248571Smm zfs_secpolicy_set_fsacl); 6380248571Smm 6381353759Savg /* 6382353759Savg * Not using zfs_ioctl_register_dataset_modify as DATASET_NAME check 6383353759Savg * won't allow a bookmark name. 6384353759Savg */ 6385353759Savg zfs_ioctl_register_legacy(ZFS_IOC_RENAME, zfs_ioc_rename, 6386353759Savg zfs_secpolicy_rename, ENTITY_NAME, B_TRUE, 6387353759Savg POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 6388353759Savg 6389248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, 6390248571Smm zfs_secpolicy_share, POOL_CHECK_NONE); 6391248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, 6392248571Smm zfs_secpolicy_smb_acl, POOL_CHECK_NONE); 6393248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, 6394248571Smm zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, 6395248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 6396248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, 6397248571Smm zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, 6398248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 6399252380Smm 6400252380Smm#ifdef __FreeBSD__ 6401252380Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_JAIL, zfs_ioc_jail, 6402252380Smm zfs_secpolicy_config, POOL_CHECK_NONE); 6403252380Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_UNJAIL, zfs_ioc_unjail, 6404252380Smm zfs_secpolicy_config, POOL_CHECK_NONE); 6405308914Savg zfs_ioctl_register("fbsd_nextboot", ZFS_IOC_NEXTBOOT, 6406308914Savg zfs_ioc_nextboot, zfs_secpolicy_config, NO_NAME, 6407308914Savg POOL_CHECK_NONE, B_FALSE, B_FALSE); 6408252380Smm#endif 6409248571Smm} 6410248571Smm 6411209962Smmint 6412246688Smmpool_status_check(const char *name, zfs_ioc_namecheck_t type, 6413246688Smm zfs_ioc_poolcheck_t check) 6414209962Smm{ 6415209962Smm spa_t *spa; 6416209962Smm int error; 6417209962Smm 6418353759Savg ASSERT(type == POOL_NAME || type == DATASET_NAME || 6419353759Savg type == ENTITY_NAME); 6420209962Smm 6421246688Smm if (check & POOL_CHECK_NONE) 6422246688Smm return (0); 6423246688Smm 6424209962Smm error = spa_open(name, &spa, FTAG); 6425209962Smm if (error == 0) { 6426246688Smm if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) 6427249195Smm error = SET_ERROR(EAGAIN); 6428246688Smm else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) 6429249195Smm error = SET_ERROR(EROFS); 6430209962Smm spa_close(spa, FTAG); 6431209962Smm } 6432209962Smm return (error); 6433209962Smm} 6434209962Smm 6435219089Spjd/* 6436219089Spjd * Find a free minor number. 6437219089Spjd */ 6438219089Spjdminor_t 6439219089Spjdzfsdev_minor_alloc(void) 6440219089Spjd{ 6441219089Spjd static minor_t last_minor; 6442219089Spjd minor_t m; 6443219089Spjd 6444224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 6445219089Spjd 6446219089Spjd for (m = last_minor + 1; m != last_minor; m++) { 6447219089Spjd if (m > ZFSDEV_MAX_MINOR) 6448219089Spjd m = 1; 6449219089Spjd if (ddi_get_soft_state(zfsdev_state, m) == NULL) { 6450219089Spjd last_minor = m; 6451219089Spjd return (m); 6452219089Spjd } 6453219089Spjd } 6454219089Spjd 6455219089Spjd return (0); 6456219089Spjd} 6457219089Spjd 6458168404Spjdstatic int 6459219089Spjdzfs_ctldev_init(struct cdev *devp) 6460219089Spjd{ 6461219089Spjd minor_t minor; 6462219089Spjd zfs_soft_state_t *zs; 6463219089Spjd 6464224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 6465219089Spjd 6466219089Spjd minor = zfsdev_minor_alloc(); 6467219089Spjd if (minor == 0) 6468249195Smm return (SET_ERROR(ENXIO)); 6469219089Spjd 6470219089Spjd if (ddi_soft_state_zalloc(zfsdev_state, minor) != DDI_SUCCESS) 6471249195Smm return (SET_ERROR(EAGAIN)); 6472219089Spjd 6473219089Spjd devfs_set_cdevpriv((void *)(uintptr_t)minor, zfsdev_close); 6474219089Spjd 6475219089Spjd zs = ddi_get_soft_state(zfsdev_state, minor); 6476219089Spjd zs->zss_type = ZSST_CTLDEV; 6477219089Spjd zfs_onexit_init((zfs_onexit_t **)&zs->zss_data); 6478219089Spjd 6479219089Spjd return (0); 6480219089Spjd} 6481219089Spjd 6482219089Spjdstatic void 6483219089Spjdzfs_ctldev_destroy(zfs_onexit_t *zo, minor_t minor) 6484219089Spjd{ 6485224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 6486219089Spjd 6487219089Spjd zfs_onexit_destroy(zo); 6488219089Spjd ddi_soft_state_free(zfsdev_state, minor); 6489219089Spjd} 6490219089Spjd 6491219089Spjdvoid * 6492219089Spjdzfsdev_get_soft_state(minor_t minor, enum zfs_soft_state_type which) 6493219089Spjd{ 6494219089Spjd zfs_soft_state_t *zp; 6495219089Spjd 6496219089Spjd zp = ddi_get_soft_state(zfsdev_state, minor); 6497219089Spjd if (zp == NULL || zp->zss_type != which) 6498219089Spjd return (NULL); 6499219089Spjd 6500219089Spjd return (zp->zss_data); 6501219089Spjd} 6502219089Spjd 6503219089Spjdstatic int 6504219089Spjdzfsdev_open(struct cdev *devp, int flag, int mode, struct thread *td) 6505219089Spjd{ 6506219089Spjd int error = 0; 6507219089Spjd 6508277300Ssmh#ifdef illumos 6509219089Spjd if (getminor(*devp) != 0) 6510219089Spjd return (zvol_open(devp, flag, otyp, cr)); 6511219089Spjd#endif 6512219089Spjd 6513219089Spjd /* This is the control device. Allocate a new minor if requested. */ 6514219089Spjd if (flag & FEXCL) { 6515224791Spjd mutex_enter(&spa_namespace_lock); 6516219089Spjd error = zfs_ctldev_init(devp); 6517224791Spjd mutex_exit(&spa_namespace_lock); 6518219089Spjd } 6519219089Spjd 6520219089Spjd return (error); 6521219089Spjd} 6522219089Spjd 6523219089Spjdstatic void 6524219089Spjdzfsdev_close(void *data) 6525219089Spjd{ 6526219089Spjd zfs_onexit_t *zo; 6527219089Spjd minor_t minor = (minor_t)(uintptr_t)data; 6528219089Spjd 6529219089Spjd if (minor == 0) 6530219089Spjd return; 6531219089Spjd 6532224791Spjd mutex_enter(&spa_namespace_lock); 6533219089Spjd zo = zfsdev_get_soft_state(minor, ZSST_CTLDEV); 6534219089Spjd if (zo == NULL) { 6535224791Spjd mutex_exit(&spa_namespace_lock); 6536219089Spjd return; 6537219089Spjd } 6538219089Spjd zfs_ctldev_destroy(zo, minor); 6539224791Spjd mutex_exit(&spa_namespace_lock); 6540219089Spjd} 6541219089Spjd 6542219089Spjdstatic int 6543248571Smmzfsdev_ioctl(struct cdev *dev, u_long zcmd, caddr_t arg, int flag, 6544168404Spjd struct thread *td) 6545168404Spjd{ 6546219089Spjd zfs_cmd_t *zc; 6547248571Smm uint_t vecnum; 6548249319Smm int error, rc, len; 6549249004Smm#ifdef illumos 6550248571Smm minor_t minor = getminor(dev); 6551248571Smm#else 6552249319Smm zfs_iocparm_t *zc_iocparm; 6553249319Smm int cflag, cmd, oldvecnum; 6554249319Smm boolean_t newioc, compat; 6555268116Sdelphij void *compat_zc = NULL; 6556248571Smm cred_t *cr = td->td_ucred; 6557248571Smm#endif 6558248571Smm const zfs_ioc_vec_t *vec; 6559248571Smm char *saved_poolname = NULL; 6560248571Smm nvlist_t *innvl = NULL; 6561168404Spjd 6562219089Spjd cflag = ZFS_CMD_COMPAT_NONE; 6563249319Smm compat = B_FALSE; 6564268116Sdelphij newioc = B_TRUE; /* "new" style (zfs_iocparm_t) ioctl */ 6565249319Smm 6566248571Smm len = IOCPARM_LEN(zcmd); 6567268116Sdelphij vecnum = cmd = zcmd & 0xff; 6568219089Spjd 6569214854Sdelphij /* 6570247540Smm * Check if we are talking to supported older binaries 6571247540Smm * and translate zfs_cmd if necessary 6572214854Sdelphij */ 6573249319Smm if (len != sizeof(zfs_iocparm_t)) { 6574249319Smm newioc = B_FALSE; 6575268116Sdelphij compat = B_TRUE; 6576268116Sdelphij 6577268116Sdelphij vecnum = cmd; 6578268116Sdelphij 6579268116Sdelphij switch (len) { 6580268116Sdelphij case sizeof(zfs_cmd_zcmd_t): 6581249319Smm cflag = ZFS_CMD_COMPAT_LZC; 6582268116Sdelphij break; 6583268116Sdelphij case sizeof(zfs_cmd_deadman_t): 6584248571Smm cflag = ZFS_CMD_COMPAT_DEADMAN; 6585268116Sdelphij break; 6586268116Sdelphij case sizeof(zfs_cmd_v28_t): 6587247540Smm cflag = ZFS_CMD_COMPAT_V28; 6588268116Sdelphij break; 6589268116Sdelphij case sizeof(zfs_cmd_v15_t): 6590333252Semaste if (cmd >= sizeof(zfs_ioctl_v15_to_v28) / 6591333252Semaste sizeof(zfs_ioctl_v15_to_v28[0])) 6592333252Semaste return (EINVAL); 6593333252Semaste 6594219089Spjd cflag = ZFS_CMD_COMPAT_V15; 6595248571Smm vecnum = zfs_ioctl_v15_to_v28[cmd]; 6596268116Sdelphij 6597268116Sdelphij /* 6598268116Sdelphij * Return without further handling 6599268116Sdelphij * if the command is blacklisted. 6600268116Sdelphij */ 6601268116Sdelphij if (vecnum == ZFS_IOC_COMPAT_PASS) 6602268116Sdelphij return (0); 6603268116Sdelphij else if (vecnum == ZFS_IOC_COMPAT_FAIL) 6604268116Sdelphij return (ENOTSUP); 6605268116Sdelphij break; 6606268116Sdelphij default: 6607219089Spjd return (EINVAL); 6608268116Sdelphij } 6609268116Sdelphij } 6610214854Sdelphij 6611248571Smm#ifdef illumos 6612248571Smm vecnum = cmd - ZFS_IOC_FIRST; 6613248571Smm ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip)); 6614248571Smm#endif 6615248571Smm 6616248571Smm if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 6617249195Smm return (SET_ERROR(EINVAL)); 6618248571Smm vec = &zfs_ioc_vec[vecnum]; 6619168404Spjd 6620248571Smm zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 6621248571Smm 6622268116Sdelphij#ifdef illumos 6623248571Smm error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); 6624248571Smm if (error != 0) { 6625249195Smm error = SET_ERROR(EFAULT); 6626248571Smm goto out; 6627248571Smm } 6628249319Smm#else /* !illumos */ 6629268116Sdelphij bzero(zc, sizeof(zfs_cmd_t)); 6630249319Smm 6631249319Smm if (newioc) { 6632249319Smm zc_iocparm = (void *)arg; 6633268116Sdelphij 6634268116Sdelphij switch (zc_iocparm->zfs_ioctl_version) { 6635268116Sdelphij case ZFS_IOCVER_CURRENT: 6636268116Sdelphij if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_t)) { 6637268116Sdelphij error = SET_ERROR(EINVAL); 6638268116Sdelphij goto out; 6639268116Sdelphij } 6640268116Sdelphij break; 6641307101Smav case ZFS_IOCVER_INLANES: 6642307101Smav if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_inlanes_t)) { 6643307101Smav error = SET_ERROR(EFAULT); 6644307101Smav goto out; 6645307101Smav } 6646307101Smav compat = B_TRUE; 6647307101Smav cflag = ZFS_CMD_COMPAT_INLANES; 6648307101Smav break; 6649296563Smav case ZFS_IOCVER_RESUME: 6650296563Smav if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_resume_t)) { 6651296563Smav error = SET_ERROR(EFAULT); 6652296563Smav goto out; 6653296563Smav } 6654296563Smav compat = B_TRUE; 6655296563Smav cflag = ZFS_CMD_COMPAT_RESUME; 6656296563Smav break; 6657289362Smav case ZFS_IOCVER_EDBP: 6658289362Smav if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_edbp_t)) { 6659289362Smav error = SET_ERROR(EFAULT); 6660289362Smav goto out; 6661289362Smav } 6662289362Smav compat = B_TRUE; 6663289362Smav cflag = ZFS_CMD_COMPAT_EDBP; 6664289362Smav break; 6665268116Sdelphij case ZFS_IOCVER_ZCMD: 6666268116Sdelphij if (zc_iocparm->zfs_cmd_size > sizeof(zfs_cmd_t) || 6667268116Sdelphij zc_iocparm->zfs_cmd_size < sizeof(zfs_cmd_zcmd_t)) { 6668268116Sdelphij error = SET_ERROR(EFAULT); 6669268116Sdelphij goto out; 6670268116Sdelphij } 6671268116Sdelphij compat = B_TRUE; 6672268116Sdelphij cflag = ZFS_CMD_COMPAT_ZCMD; 6673268116Sdelphij break; 6674268116Sdelphij default: 6675268116Sdelphij error = SET_ERROR(EINVAL); 6676249319Smm goto out; 6677268116Sdelphij /* NOTREACHED */ 6678249319Smm } 6679268075Sdelphij 6680268116Sdelphij if (compat) { 6681268116Sdelphij ASSERT(sizeof(zfs_cmd_t) >= zc_iocparm->zfs_cmd_size); 6682268116Sdelphij compat_zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 6683268116Sdelphij bzero(compat_zc, sizeof(zfs_cmd_t)); 6684268116Sdelphij 6685268116Sdelphij error = ddi_copyin((void *)(uintptr_t)zc_iocparm->zfs_cmd, 6686268116Sdelphij compat_zc, zc_iocparm->zfs_cmd_size, flag); 6687268116Sdelphij if (error != 0) { 6688268116Sdelphij error = SET_ERROR(EFAULT); 6689268075Sdelphij goto out; 6690268075Sdelphij } 6691268116Sdelphij } else { 6692268116Sdelphij error = ddi_copyin((void *)(uintptr_t)zc_iocparm->zfs_cmd, 6693268116Sdelphij zc, zc_iocparm->zfs_cmd_size, flag); 6694268116Sdelphij if (error != 0) { 6695268116Sdelphij error = SET_ERROR(EFAULT); 6696268116Sdelphij goto out; 6697268116Sdelphij } 6698268075Sdelphij } 6699249319Smm } 6700249319Smm 6701249319Smm if (compat) { 6702268116Sdelphij if (newioc) { 6703268116Sdelphij ASSERT(compat_zc != NULL); 6704268116Sdelphij zfs_cmd_compat_get(zc, compat_zc, cflag); 6705268116Sdelphij } else { 6706268116Sdelphij ASSERT(compat_zc == NULL); 6707268116Sdelphij zfs_cmd_compat_get(zc, arg, cflag); 6708268116Sdelphij } 6709248571Smm oldvecnum = vecnum; 6710248571Smm error = zfs_ioctl_compat_pre(zc, &vecnum, cflag); 6711248571Smm if (error != 0) 6712248571Smm goto out; 6713248571Smm if (oldvecnum != vecnum) 6714248571Smm vec = &zfs_ioc_vec[vecnum]; 6715249319Smm } 6716249319Smm#endif /* !illumos */ 6717248571Smm 6718248571Smm zc->zc_iflags = flag & FKIOCTL; 6719248571Smm if (zc->zc_nvlist_src_size != 0) { 6720248571Smm error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 6721248571Smm zc->zc_iflags, &innvl); 6722248571Smm if (error != 0) 6723248571Smm goto out; 6724219089Spjd } 6725219089Spjd 6726248571Smm /* rewrite innvl for backwards compatibility */ 6727249319Smm if (compat) 6728248571Smm innvl = zfs_ioctl_compat_innvl(zc, innvl, vecnum, cflag); 6729168404Spjd 6730168404Spjd /* 6731168404Spjd * Ensure that all pool/dataset names are valid before we pass down to 6732168404Spjd * the lower layers. 6733168404Spjd */ 6734248571Smm zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 6735248571Smm switch (vec->zvec_namecheck) { 6736248571Smm case POOL_NAME: 6737248571Smm if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 6738249195Smm error = SET_ERROR(EINVAL); 6739248571Smm else 6740248571Smm error = pool_status_check(zc->zc_name, 6741248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 6742248571Smm break; 6743168404Spjd 6744248571Smm case DATASET_NAME: 6745248571Smm if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 6746249195Smm error = SET_ERROR(EINVAL); 6747248571Smm else 6748248571Smm error = pool_status_check(zc->zc_name, 6749248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 6750248571Smm break; 6751168404Spjd 6752353759Savg case ENTITY_NAME: 6753353759Savg if (entity_namecheck(zc->zc_name, NULL, NULL) != 0) { 6754353759Savg error = SET_ERROR(EINVAL); 6755353759Savg } else { 6756353759Savg error = pool_status_check(zc->zc_name, 6757353759Savg vec->zvec_namecheck, vec->zvec_pool_check); 6758353759Savg } 6759353759Savg break; 6760353759Savg 6761248571Smm case NO_NAME: 6762248571Smm break; 6763168404Spjd } 6764168404Spjd 6765307048Smav if (error == 0) 6766248571Smm error = vec->zvec_secpolicy(zc, innvl, cr); 6767168404Spjd 6768248571Smm if (error != 0) 6769248571Smm goto out; 6770248571Smm 6771248571Smm /* legacy ioctls can modify zc_name */ 6772260183Sdelphij len = strcspn(zc->zc_name, "/@#") + 1; 6773248571Smm saved_poolname = kmem_alloc(len, KM_SLEEP); 6774248571Smm (void) strlcpy(saved_poolname, zc->zc_name, len); 6775248571Smm 6776248571Smm if (vec->zvec_func != NULL) { 6777248571Smm nvlist_t *outnvl; 6778248571Smm int puterror = 0; 6779248571Smm spa_t *spa; 6780248571Smm nvlist_t *lognv = NULL; 6781248571Smm 6782248571Smm ASSERT(vec->zvec_legacy_func == NULL); 6783248571Smm 6784248571Smm /* 6785248571Smm * Add the innvl to the lognv before calling the func, 6786248571Smm * in case the func changes the innvl. 6787248571Smm */ 6788248571Smm if (vec->zvec_allow_log) { 6789248571Smm lognv = fnvlist_alloc(); 6790248571Smm fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, 6791248571Smm vec->zvec_name); 6792248571Smm if (!nvlist_empty(innvl)) { 6793248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, 6794248571Smm innvl); 6795248571Smm } 6796248571Smm } 6797248571Smm 6798248571Smm outnvl = fnvlist_alloc(); 6799248571Smm error = vec->zvec_func(zc->zc_name, innvl, outnvl); 6800248571Smm 6801325534Savg /* 6802325534Savg * Some commands can partially execute, modfiy state, and still 6803325534Savg * return an error. In these cases, attempt to record what 6804325534Savg * was modified. 6805325534Savg */ 6806325534Savg if ((error == 0 || 6807325534Savg (cmd == ZFS_IOC_CHANNEL_PROGRAM && error != EINVAL)) && 6808325534Savg vec->zvec_allow_log && 6809248571Smm spa_open(zc->zc_name, &spa, FTAG) == 0) { 6810248571Smm if (!nvlist_empty(outnvl)) { 6811248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, 6812248571Smm outnvl); 6813248571Smm } 6814325534Savg if (error != 0) { 6815325534Savg fnvlist_add_int64(lognv, ZPOOL_HIST_ERRNO, 6816325534Savg error); 6817325534Savg } 6818248571Smm (void) spa_history_log_nvl(spa, lognv); 6819248571Smm spa_close(spa, FTAG); 6820248571Smm } 6821248571Smm fnvlist_free(lognv); 6822248571Smm 6823248571Smm /* rewrite outnvl for backwards compatibility */ 6824268116Sdelphij if (compat) 6825248571Smm outnvl = zfs_ioctl_compat_outnvl(zc, outnvl, vecnum, 6826248571Smm cflag); 6827248571Smm 6828248571Smm if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { 6829248571Smm int smusherror = 0; 6830248571Smm if (vec->zvec_smush_outnvlist) { 6831248571Smm smusherror = nvlist_smush(outnvl, 6832248571Smm zc->zc_nvlist_dst_size); 6833248571Smm } 6834248571Smm if (smusherror == 0) 6835248571Smm puterror = put_nvlist(zc, outnvl); 6836248571Smm } 6837248571Smm 6838248571Smm if (puterror != 0) 6839248571Smm error = puterror; 6840248571Smm 6841248571Smm nvlist_free(outnvl); 6842248571Smm } else { 6843248571Smm error = vec->zvec_legacy_func(zc); 6844196985Spjd } 6845185029Spjd 6846248571Smmout: 6847248571Smm nvlist_free(innvl); 6848249319Smm 6849249004Smm#ifdef illumos 6850249004Smm rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); 6851248571Smm if (error == 0 && rc != 0) 6852249195Smm error = SET_ERROR(EFAULT); 6853249319Smm#else 6854268116Sdelphij if (compat) { 6855268116Sdelphij zfs_ioctl_compat_post(zc, cmd, cflag); 6856268116Sdelphij if (newioc) { 6857268116Sdelphij ASSERT(compat_zc != NULL); 6858268116Sdelphij ASSERT(sizeof(zfs_cmd_t) >= zc_iocparm->zfs_cmd_size); 6859268116Sdelphij 6860268116Sdelphij zfs_cmd_compat_put(zc, compat_zc, vecnum, cflag); 6861268116Sdelphij rc = ddi_copyout(compat_zc, 6862268116Sdelphij (void *)(uintptr_t)zc_iocparm->zfs_cmd, 6863268116Sdelphij zc_iocparm->zfs_cmd_size, flag); 6864268116Sdelphij if (error == 0 && rc != 0) 6865268116Sdelphij error = SET_ERROR(EFAULT); 6866268116Sdelphij kmem_free(compat_zc, sizeof (zfs_cmd_t)); 6867268116Sdelphij } else { 6868268116Sdelphij zfs_cmd_compat_put(zc, arg, vecnum, cflag); 6869268116Sdelphij } 6870268116Sdelphij } else { 6871268116Sdelphij ASSERT(newioc); 6872268116Sdelphij 6873249326Smm rc = ddi_copyout(zc, (void *)(uintptr_t)zc_iocparm->zfs_cmd, 6874249319Smm sizeof (zfs_cmd_t), flag); 6875249319Smm if (error == 0 && rc != 0) 6876249319Smm error = SET_ERROR(EFAULT); 6877249319Smm } 6878249004Smm#endif 6879248571Smm if (error == 0 && vec->zvec_allow_log) { 6880248571Smm char *s = tsd_get(zfs_allow_log_key); 6881248571Smm if (s != NULL) 6882248571Smm strfree(s); 6883248571Smm (void) tsd_set(zfs_allow_log_key, saved_poolname); 6884248571Smm } else { 6885248571Smm if (saved_poolname != NULL) 6886248571Smm strfree(saved_poolname); 6887248571Smm } 6888248571Smm 6889248571Smm kmem_free(zc, sizeof (zfs_cmd_t)); 6890168404Spjd return (error); 6891168404Spjd} 6892168404Spjd 6893277300Ssmh#ifdef illumos 6894219089Spjdstatic int 6895219089Spjdzfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 6896219089Spjd{ 6897219089Spjd if (cmd != DDI_ATTACH) 6898219089Spjd return (DDI_FAILURE); 6899219089Spjd 6900219089Spjd if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 6901219089Spjd DDI_PSEUDO, 0) == DDI_FAILURE) 6902219089Spjd return (DDI_FAILURE); 6903219089Spjd 6904219089Spjd zfs_dip = dip; 6905219089Spjd 6906219089Spjd ddi_report_dev(dip); 6907219089Spjd 6908219089Spjd return (DDI_SUCCESS); 6909219089Spjd} 6910219089Spjd 6911219089Spjdstatic int 6912219089Spjdzfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 6913219089Spjd{ 6914219089Spjd if (spa_busy() || zfs_busy() || zvol_busy()) 6915219089Spjd return (DDI_FAILURE); 6916219089Spjd 6917219089Spjd if (cmd != DDI_DETACH) 6918219089Spjd return (DDI_FAILURE); 6919219089Spjd 6920219089Spjd zfs_dip = NULL; 6921219089Spjd 6922219089Spjd ddi_prop_remove_all(dip); 6923219089Spjd ddi_remove_minor_node(dip, NULL); 6924219089Spjd 6925219089Spjd return (DDI_SUCCESS); 6926219089Spjd} 6927219089Spjd 6928219089Spjd/*ARGSUSED*/ 6929219089Spjdstatic int 6930219089Spjdzfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 6931219089Spjd{ 6932219089Spjd switch (infocmd) { 6933219089Spjd case DDI_INFO_DEVT2DEVINFO: 6934219089Spjd *result = zfs_dip; 6935219089Spjd return (DDI_SUCCESS); 6936219089Spjd 6937219089Spjd case DDI_INFO_DEVT2INSTANCE: 6938219089Spjd *result = (void *)0; 6939219089Spjd return (DDI_SUCCESS); 6940219089Spjd } 6941219089Spjd 6942219089Spjd return (DDI_FAILURE); 6943219089Spjd} 6944277300Ssmh#endif /* illumos */ 6945219089Spjd 6946168404Spjd/* 6947168404Spjd * OK, so this is a little weird. 6948168404Spjd * 6949168404Spjd * /dev/zfs is the control node, i.e. minor 0. 6950168404Spjd * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 6951168404Spjd * 6952168404Spjd * /dev/zfs has basically nothing to do except serve up ioctls, 6953168404Spjd * so most of the standard driver entry points are in zvol.c. 6954168404Spjd */ 6955277300Ssmh#ifdef illumos 6956219089Spjdstatic struct cb_ops zfs_cb_ops = { 6957219089Spjd zfsdev_open, /* open */ 6958219089Spjd zfsdev_close, /* close */ 6959219089Spjd zvol_strategy, /* strategy */ 6960219089Spjd nodev, /* print */ 6961219089Spjd zvol_dump, /* dump */ 6962219089Spjd zvol_read, /* read */ 6963219089Spjd zvol_write, /* write */ 6964219089Spjd zfsdev_ioctl, /* ioctl */ 6965219089Spjd nodev, /* devmap */ 6966219089Spjd nodev, /* mmap */ 6967219089Spjd nodev, /* segmap */ 6968219089Spjd nochpoll, /* poll */ 6969219089Spjd ddi_prop_op, /* prop_op */ 6970219089Spjd NULL, /* streamtab */ 6971219089Spjd D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 6972219089Spjd CB_REV, /* version */ 6973219089Spjd nodev, /* async read */ 6974219089Spjd nodev, /* async write */ 6975219089Spjd}; 6976219089Spjd 6977219089Spjdstatic struct dev_ops zfs_dev_ops = { 6978219089Spjd DEVO_REV, /* version */ 6979219089Spjd 0, /* refcnt */ 6980219089Spjd zfs_info, /* info */ 6981219089Spjd nulldev, /* identify */ 6982219089Spjd nulldev, /* probe */ 6983219089Spjd zfs_attach, /* attach */ 6984219089Spjd zfs_detach, /* detach */ 6985219089Spjd nodev, /* reset */ 6986219089Spjd &zfs_cb_ops, /* driver operations */ 6987219089Spjd NULL, /* no bus operations */ 6988219089Spjd NULL, /* power */ 6989219089Spjd ddi_quiesce_not_needed, /* quiesce */ 6990219089Spjd}; 6991219089Spjd 6992219089Spjdstatic struct modldrv zfs_modldrv = { 6993219089Spjd &mod_driverops, 6994219089Spjd "ZFS storage pool", 6995219089Spjd &zfs_dev_ops 6996219089Spjd}; 6997219089Spjd 6998219089Spjdstatic struct modlinkage modlinkage = { 6999219089Spjd MODREV_1, 7000219089Spjd (void *)&zfs_modlfs, 7001219089Spjd (void *)&zfs_modldrv, 7002219089Spjd NULL 7003219089Spjd}; 7004277300Ssmh#endif /* illumos */ 7005219089Spjd 7006168404Spjdstatic struct cdevsw zfs_cdevsw = { 7007168404Spjd .d_version = D_VERSION, 7008219089Spjd .d_open = zfsdev_open, 7009168404Spjd .d_ioctl = zfsdev_ioctl, 7010168404Spjd .d_name = ZFS_DEV_NAME 7011168404Spjd}; 7012168404Spjd 7013168404Spjdstatic void 7014248571Smmzfs_allow_log_destroy(void *arg) 7015248571Smm{ 7016248571Smm char *poolname = arg; 7017248571Smm strfree(poolname); 7018248571Smm} 7019248571Smm 7020248571Smmstatic void 7021168404Spjdzfsdev_init(void) 7022168404Spjd{ 7023185029Spjd zfsdev = make_dev(&zfs_cdevsw, 0x0, UID_ROOT, GID_OPERATOR, 0666, 7024168404Spjd ZFS_DEV_NAME); 7025168404Spjd} 7026168404Spjd 7027168404Spjdstatic void 7028168404Spjdzfsdev_fini(void) 7029168404Spjd{ 7030168404Spjd if (zfsdev != NULL) 7031168404Spjd destroy_dev(zfsdev); 7032168404Spjd} 7033168404Spjd 7034169929Spjdstatic struct root_hold_token *zfs_root_token; 7035196458Spjdstruct proc *zfsproc; 7036168404Spjd 7037277300Ssmh#ifdef illumos 7038219089Spjdint 7039219089Spjd_init(void) 7040219089Spjd{ 7041219089Spjd int error; 7042219089Spjd 7043219089Spjd spa_init(FREAD | FWRITE); 7044219089Spjd zfs_init(); 7045219089Spjd zvol_init(); 7046248571Smm zfs_ioctl_init(); 7047219089Spjd 7048219089Spjd if ((error = mod_install(&modlinkage)) != 0) { 7049219089Spjd zvol_fini(); 7050219089Spjd zfs_fini(); 7051219089Spjd spa_fini(); 7052219089Spjd return (error); 7053219089Spjd } 7054219089Spjd 7055219089Spjd tsd_create(&zfs_fsyncer_key, NULL); 7056248571Smm tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 7057248571Smm tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 7058219089Spjd 7059219089Spjd error = ldi_ident_from_mod(&modlinkage, &zfs_li); 7060219089Spjd ASSERT(error == 0); 7061219089Spjd mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 7062219089Spjd 7063219089Spjd return (0); 7064219089Spjd} 7065219089Spjd 7066219089Spjdint 7067219089Spjd_fini(void) 7068219089Spjd{ 7069219089Spjd int error; 7070219089Spjd 7071219089Spjd if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 7072249195Smm return (SET_ERROR(EBUSY)); 7073219089Spjd 7074219089Spjd if ((error = mod_remove(&modlinkage)) != 0) 7075219089Spjd return (error); 7076219089Spjd 7077219089Spjd zvol_fini(); 7078219089Spjd zfs_fini(); 7079219089Spjd spa_fini(); 7080219089Spjd if (zfs_nfsshare_inited) 7081219089Spjd (void) ddi_modclose(nfs_mod); 7082219089Spjd if (zfs_smbshare_inited) 7083219089Spjd (void) ddi_modclose(smbsrv_mod); 7084219089Spjd if (zfs_nfsshare_inited || zfs_smbshare_inited) 7085219089Spjd (void) ddi_modclose(sharefs_mod); 7086219089Spjd 7087219089Spjd tsd_destroy(&zfs_fsyncer_key); 7088219089Spjd ldi_ident_release(zfs_li); 7089219089Spjd zfs_li = NULL; 7090219089Spjd mutex_destroy(&zfs_share_lock); 7091219089Spjd 7092219089Spjd return (error); 7093219089Spjd} 7094219089Spjd 7095219089Spjdint 7096219089Spjd_info(struct modinfo *modinfop) 7097219089Spjd{ 7098219089Spjd return (mod_info(&modlinkage, modinfop)); 7099219089Spjd} 7100277300Ssmh#endif /* illumos */ 7101219089Spjd 7102253606Savgstatic int zfs__init(void); 7103253606Savgstatic int zfs__fini(void); 7104253606Savgstatic void zfs_shutdown(void *, int); 7105253606Savg 7106253606Savgstatic eventhandler_tag zfs_shutdown_event_tag; 7107253606Savg 7108286223Ssmh#ifdef __FreeBSD__ 7109285946Ssmh#define ZFS_MIN_KSTACK_PAGES 4 7110286223Ssmh#endif 7111285946Ssmh 7112253606Savgint 7113253606Savgzfs__init(void) 7114168404Spjd{ 7115168404Spjd 7116286223Ssmh#ifdef __FreeBSD__ 7117285946Ssmh#if KSTACK_PAGES < ZFS_MIN_KSTACK_PAGES 7118285946Ssmh printf("ZFS NOTICE: KSTACK_PAGES is %d which could result in stack " 7119285946Ssmh "overflow panic!\nPlease consider adding " 7120285946Ssmh "'options KSTACK_PAGES=%d' to your kernel config\n", KSTACK_PAGES, 7121285946Ssmh ZFS_MIN_KSTACK_PAGES); 7122285946Ssmh#endif 7123286223Ssmh#endif 7124253606Savg zfs_root_token = root_mount_hold("ZFS"); 7125196291Spjd 7126253606Savg mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 7127196291Spjd 7128253606Savg spa_init(FREAD | FWRITE); 7129253606Savg zfs_init(); 7130253606Savg zvol_init(); 7131253606Savg zfs_ioctl_init(); 7132196291Spjd 7133253606Savg tsd_create(&zfs_fsyncer_key, NULL); 7134253606Savg tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 7135253606Savg tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 7136294329Sasomers tsd_create(&zfs_geom_probe_vdev_key, NULL); 7137196291Spjd 7138253606Savg printf("ZFS storage pool version: features support (" SPA_VERSION_STRING ")\n"); 7139253606Savg root_mount_rel(zfs_root_token); 7140196291Spjd 7141253606Savg zfsdev_init(); 7142196291Spjd 7143253606Savg return (0); 7144253606Savg} 7145196291Spjd 7146253606Savgint 7147253606Savgzfs__fini(void) 7148253606Savg{ 7149253606Savg if (spa_busy() || zfs_busy() || zvol_busy() || 7150253606Savg zio_injection_enabled) { 7151253606Savg return (EBUSY); 7152253606Savg } 7153196291Spjd 7154253606Savg zfsdev_fini(); 7155253606Savg zvol_fini(); 7156253606Savg zfs_fini(); 7157253606Savg spa_fini(); 7158253606Savg 7159253606Savg tsd_destroy(&zfs_fsyncer_key); 7160253606Savg tsd_destroy(&rrw_tsd_key); 7161253606Savg tsd_destroy(&zfs_allow_log_key); 7162253606Savg 7163253606Savg mutex_destroy(&zfs_share_lock); 7164253606Savg 7165253606Savg return (0); 7166253606Savg} 7167253606Savg 7168253606Savgstatic void 7169253606Savgzfs_shutdown(void *arg __unused, int howto __unused) 7170253606Savg{ 7171253606Savg 7172253606Savg /* 7173253606Savg * ZFS fini routines can not properly work in a panic-ed system. 7174253606Savg */ 7175253606Savg if (panicstr == NULL) 7176253606Savg (void)zfs__fini(); 7177253606Savg} 7178253606Savg 7179253606Savg 7180253606Savgstatic int 7181253606Savgzfs_modevent(module_t mod, int type, void *unused __unused) 7182253606Savg{ 7183253606Savg int err; 7184253606Savg 7185253606Savg switch (type) { 7186253606Savg case MOD_LOAD: 7187253606Savg err = zfs__init(); 7188253606Savg if (err == 0) 7189253606Savg zfs_shutdown_event_tag = EVENTHANDLER_REGISTER( 7190253606Savg shutdown_post_sync, zfs_shutdown, NULL, 7191253606Savg SHUTDOWN_PRI_FIRST); 7192253606Savg return (err); 7193253606Savg case MOD_UNLOAD: 7194253606Savg err = zfs__fini(); 7195253606Savg if (err == 0 && zfs_shutdown_event_tag != NULL) 7196253606Savg EVENTHANDLER_DEREGISTER(shutdown_post_sync, 7197253606Savg zfs_shutdown_event_tag); 7198253606Savg return (err); 7199253606Savg case MOD_SHUTDOWN: 7200253606Savg return (0); 7201196291Spjd default: 7202196291Spjd break; 7203168404Spjd } 7204253606Savg return (EOPNOTSUPP); 7205168404Spjd} 7206168404Spjd 7207168404Spjdstatic moduledata_t zfs_mod = { 7208168404Spjd "zfsctrl", 7209168404Spjd zfs_modevent, 7210241394Skevlo 0 7211168404Spjd}; 7212169929SpjdDECLARE_MODULE(zfsctrl, zfs_mod, SI_SUB_VFS, SI_ORDER_ANY); 7213246242SavgMODULE_VERSION(zfsctrl, 1); 7214179280SjbMODULE_DEPEND(zfsctrl, opensolaris, 1, 1, 1); 7215193128SkmacyMODULE_DEPEND(zfsctrl, krpc, 1, 1, 1); 7216232938SadrianMODULE_DEPEND(zfsctrl, acl_nfs4, 1, 1, 1); 7217