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. 24230438Spjd * Copyright (c) 2011-2012 Pawel Jakub Dawidek <pawel@dawidek.net>. 25226707Spjd * All rights reserved. 26247540Smm * Copyright 2013 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 27228103Smm * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 28248571Smm * Copyright (c) 2012, Joyent, Inc. All rights reserved. 29249195Smm * Copyright (c) 2013 by Delphix. All rights reserved. 30246586Sdelphij * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 31251646Sdelphij * Copyright (c) 2013 Steven Hartland. All rights reserved. 32168404Spjd */ 33168404Spjd 34248571Smm/* 35248571Smm * ZFS ioctls. 36248571Smm * 37248571Smm * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage 38248571Smm * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. 39248571Smm * 40248571Smm * There are two ways that we handle ioctls: the legacy way where almost 41248571Smm * all of the logic is in the ioctl callback, and the new way where most 42248571Smm * of the marshalling is handled in the common entry point, zfsdev_ioctl(). 43248571Smm * 44248571Smm * Non-legacy ioctls should be registered by calling 45248571Smm * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked 46248571Smm * from userland by lzc_ioctl(). 47248571Smm * 48248571Smm * The registration arguments are as follows: 49248571Smm * 50248571Smm * const char *name 51248571Smm * The name of the ioctl. This is used for history logging. If the 52248571Smm * ioctl returns successfully (the callback returns 0), and allow_log 53248571Smm * is true, then a history log entry will be recorded with the input & 54248571Smm * output nvlists. The log entry can be printed with "zpool history -i". 55248571Smm * 56248571Smm * zfs_ioc_t ioc 57248571Smm * The ioctl request number, which userland will pass to ioctl(2). 58248571Smm * The ioctl numbers can change from release to release, because 59248571Smm * the caller (libzfs) must be matched to the kernel. 60248571Smm * 61248571Smm * zfs_secpolicy_func_t *secpolicy 62248571Smm * This function will be called before the zfs_ioc_func_t, to 63248571Smm * determine if this operation is permitted. It should return EPERM 64248571Smm * on failure, and 0 on success. Checks include determining if the 65248571Smm * dataset is visible in this zone, and if the user has either all 66248571Smm * zfs privileges in the zone (SYS_MOUNT), or has been granted permission 67248571Smm * to do this operation on this dataset with "zfs allow". 68248571Smm * 69248571Smm * zfs_ioc_namecheck_t namecheck 70248571Smm * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool 71248571Smm * name, a dataset name, or nothing. If the name is not well-formed, 72248571Smm * the ioctl will fail and the callback will not be called. 73248571Smm * Therefore, the callback can assume that the name is well-formed 74248571Smm * (e.g. is null-terminated, doesn't have more than one '@' character, 75248571Smm * doesn't have invalid characters). 76248571Smm * 77248571Smm * zfs_ioc_poolcheck_t pool_check 78248571Smm * This specifies requirements on the pool state. If the pool does 79248571Smm * not meet them (is suspended or is readonly), the ioctl will fail 80248571Smm * and the callback will not be called. If any checks are specified 81248571Smm * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. 82248571Smm * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | 83248571Smm * POOL_CHECK_READONLY). 84248571Smm * 85248571Smm * boolean_t smush_outnvlist 86248571Smm * If smush_outnvlist is true, then the output is presumed to be a 87248571Smm * list of errors, and it will be "smushed" down to fit into the 88248571Smm * caller's buffer, by removing some entries and replacing them with a 89248571Smm * single "N_MORE_ERRORS" entry indicating how many were removed. See 90248571Smm * nvlist_smush() for details. If smush_outnvlist is false, and the 91248571Smm * outnvlist does not fit into the userland-provided buffer, then the 92248571Smm * ioctl will fail with ENOMEM. 93248571Smm * 94248571Smm * zfs_ioc_func_t *func 95248571Smm * The callback function that will perform the operation. 96248571Smm * 97248571Smm * The callback should return 0 on success, or an error number on 98248571Smm * failure. If the function fails, the userland ioctl will return -1, 99248571Smm * and errno will be set to the callback's return value. The callback 100248571Smm * will be called with the following arguments: 101248571Smm * 102248571Smm * const char *name 103248571Smm * The name of the pool or dataset to operate on, from 104248571Smm * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the 105248571Smm * expected type (pool, dataset, or none). 106248571Smm * 107248571Smm * nvlist_t *innvl 108248571Smm * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or 109248571Smm * NULL if no input nvlist was provided. Changes to this nvlist are 110248571Smm * ignored. If the input nvlist could not be deserialized, the 111248571Smm * ioctl will fail and the callback will not be called. 112248571Smm * 113248571Smm * nvlist_t *outnvl 114248571Smm * The output nvlist, initially empty. The callback can fill it in, 115248571Smm * and it will be returned to userland by serializing it into 116248571Smm * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization 117248571Smm * fails (e.g. because the caller didn't supply a large enough 118248571Smm * buffer), then the overall ioctl will fail. See the 119248571Smm * 'smush_nvlist' argument above for additional behaviors. 120248571Smm * 121248571Smm * There are two typical uses of the output nvlist: 122248571Smm * - To return state, e.g. property values. In this case, 123248571Smm * smush_outnvlist should be false. If the buffer was not large 124248571Smm * enough, the caller will reallocate a larger buffer and try 125248571Smm * the ioctl again. 126248571Smm * 127248571Smm * - To return multiple errors from an ioctl which makes on-disk 128248571Smm * changes. In this case, smush_outnvlist should be true. 129248571Smm * Ioctls which make on-disk modifications should generally not 130248571Smm * use the outnvl if they succeed, because the caller can not 131248571Smm * distinguish between the operation failing, and 132248571Smm * deserialization failing. 133248571Smm */ 134248571Smm 135168962Spjd#include <sys/types.h> 136168404Spjd#include <sys/param.h> 137168404Spjd#include <sys/systm.h> 138168404Spjd#include <sys/conf.h> 139168404Spjd#include <sys/kernel.h> 140168404Spjd#include <sys/lock.h> 141168404Spjd#include <sys/malloc.h> 142168404Spjd#include <sys/mutex.h> 143168404Spjd#include <sys/proc.h> 144168404Spjd#include <sys/errno.h> 145168404Spjd#include <sys/uio.h> 146168962Spjd#include <sys/buf.h> 147168404Spjd#include <sys/file.h> 148168404Spjd#include <sys/kmem.h> 149168404Spjd#include <sys/conf.h> 150168404Spjd#include <sys/cmn_err.h> 151168404Spjd#include <sys/stat.h> 152168404Spjd#include <sys/zfs_ioctl.h> 153209962Smm#include <sys/zfs_vfsops.h> 154185029Spjd#include <sys/zfs_znode.h> 155168404Spjd#include <sys/zap.h> 156168404Spjd#include <sys/spa.h> 157168404Spjd#include <sys/spa_impl.h> 158168404Spjd#include <sys/vdev.h> 159168404Spjd#include <sys/dmu.h> 160168404Spjd#include <sys/dsl_dir.h> 161168404Spjd#include <sys/dsl_dataset.h> 162168404Spjd#include <sys/dsl_prop.h> 163185029Spjd#include <sys/dsl_deleg.h> 164185029Spjd#include <sys/dmu_objset.h> 165235222Smm#include <sys/dmu_impl.h> 166248571Smm#include <sys/dmu_tx.h> 167168962Spjd#include <sys/sunddi.h> 168168962Spjd#include <sys/policy.h> 169168962Spjd#include <sys/zone.h> 170168404Spjd#include <sys/nvpair.h> 171168404Spjd#include <sys/mount.h> 172168404Spjd#include <sys/taskqueue.h> 173168404Spjd#include <sys/sdt.h> 174168404Spjd#include <sys/varargs.h> 175168404Spjd#include <sys/fs/zfs.h> 176168404Spjd#include <sys/zfs_ctldir.h> 177185029Spjd#include <sys/zfs_dir.h> 178219089Spjd#include <sys/zfs_onexit.h> 179168404Spjd#include <sys/zvol.h> 180219089Spjd#include <sys/dsl_scan.h> 181185029Spjd#include <sys/dmu_objset.h> 182248571Smm#include <sys/dmu_send.h> 183248571Smm#include <sys/dsl_destroy.h> 184248571Smm#include <sys/dsl_userhold.h> 185246586Sdelphij#include <sys/zfeature.h> 186168404Spjd 187168404Spjd#include "zfs_namecheck.h" 188168404Spjd#include "zfs_prop.h" 189185029Spjd#include "zfs_deleg.h" 190219089Spjd#include "zfs_comutil.h" 191219089Spjd#include "zfs_ioctl_compat.h" 192168404Spjd 193219089SpjdCTASSERT(sizeof(zfs_cmd_t) < IOCPARM_MAX); 194168404Spjd 195230397Spjdstatic int snapshot_list_prefetch; 196230397SpjdSYSCTL_DECL(_vfs_zfs); 197230397SpjdTUNABLE_INT("vfs.zfs.snapshot_list_prefetch", &snapshot_list_prefetch); 198230397SpjdSYSCTL_INT(_vfs_zfs, OID_AUTO, snapshot_list_prefetch, CTLFLAG_RW, 199230397Spjd &snapshot_list_prefetch, 0, "Prefetch data when listing snapshots"); 200230397Spjd 201168404Spjdstatic struct cdev *zfsdev; 202168404Spjd 203168404Spjdextern void zfs_init(void); 204168404Spjdextern void zfs_fini(void); 205168404Spjd 206248571Smmuint_t zfs_fsyncer_key; 207248571Smmextern uint_t rrw_tsd_key; 208248571Smmstatic uint_t zfs_allow_log_key; 209168404Spjd 210248571Smmtypedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); 211248571Smmtypedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); 212248571Smmtypedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); 213248571Smm 214209962Smmtypedef enum { 215209962Smm NO_NAME, 216209962Smm POOL_NAME, 217209962Smm DATASET_NAME 218209962Smm} zfs_ioc_namecheck_t; 219209962Smm 220246688Smmtypedef enum { 221246688Smm POOL_CHECK_NONE = 1 << 0, 222246688Smm POOL_CHECK_SUSPENDED = 1 << 1, 223248571Smm POOL_CHECK_READONLY = 1 << 2, 224246688Smm} zfs_ioc_poolcheck_t; 225246688Smm 226168404Spjdtypedef struct zfs_ioc_vec { 227248571Smm zfs_ioc_legacy_func_t *zvec_legacy_func; 228168404Spjd zfs_ioc_func_t *zvec_func; 229168404Spjd zfs_secpolicy_func_t *zvec_secpolicy; 230209962Smm zfs_ioc_namecheck_t zvec_namecheck; 231248571Smm boolean_t zvec_allow_log; 232246688Smm zfs_ioc_poolcheck_t zvec_pool_check; 233248571Smm boolean_t zvec_smush_outnvlist; 234248571Smm const char *zvec_name; 235168404Spjd} zfs_ioc_vec_t; 236168404Spjd 237209962Smm/* This array is indexed by zfs_userquota_prop_t */ 238209962Smmstatic const char *userquota_perms[] = { 239209962Smm ZFS_DELEG_PERM_USERUSED, 240209962Smm ZFS_DELEG_PERM_USERQUOTA, 241209962Smm ZFS_DELEG_PERM_GROUPUSED, 242209962Smm ZFS_DELEG_PERM_GROUPQUOTA, 243209962Smm}; 244209962Smm 245209962Smmstatic int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); 246219089Spjdstatic int zfs_check_settable(const char *name, nvpair_t *property, 247219089Spjd cred_t *cr); 248219089Spjdstatic int zfs_check_clearable(char *dataset, nvlist_t *props, 249219089Spjd nvlist_t **errors); 250185029Spjdstatic int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, 251185029Spjd boolean_t *); 252248571Smmint zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); 253248571Smmstatic int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); 254219089Spjd 255219089Spjdstatic void zfsdev_close(void *data); 256185029Spjd 257248571Smmstatic int zfs_prop_activate_feature(spa_t *spa, zfeature_info_t *feature); 258246586Sdelphij 259168404Spjd/* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 260168404Spjdvoid 261168404Spjd__dprintf(const char *file, const char *func, int line, const char *fmt, ...) 262168404Spjd{ 263168404Spjd const char *newfile; 264219089Spjd char buf[512]; 265168404Spjd va_list adx; 266168404Spjd 267168404Spjd /* 268168404Spjd * Get rid of annoying "../common/" prefix to filename. 269168404Spjd */ 270168404Spjd newfile = strrchr(file, '/'); 271168404Spjd if (newfile != NULL) { 272168404Spjd newfile = newfile + 1; /* Get rid of leading / */ 273168404Spjd } else { 274168404Spjd newfile = file; 275168404Spjd } 276168404Spjd 277168404Spjd va_start(adx, fmt); 278168404Spjd (void) vsnprintf(buf, sizeof (buf), fmt, adx); 279168404Spjd va_end(adx); 280168404Spjd 281168404Spjd /* 282168404Spjd * To get this data, use the zfs-dprintf probe as so: 283168404Spjd * dtrace -q -n 'zfs-dprintf \ 284168404Spjd * /stringof(arg0) == "dbuf.c"/ \ 285168404Spjd * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 286168404Spjd * arg0 = file name 287168404Spjd * arg1 = function name 288168404Spjd * arg2 = line number 289168404Spjd * arg3 = message 290168404Spjd */ 291168404Spjd DTRACE_PROBE4(zfs__dprintf, 292168404Spjd char *, newfile, char *, func, int, line, char *, buf); 293168404Spjd} 294168404Spjd 295185029Spjdstatic void 296185029Spjdhistory_str_free(char *buf) 297185029Spjd{ 298185029Spjd kmem_free(buf, HIS_MAX_RECORD_LEN); 299185029Spjd} 300185029Spjd 301185029Spjdstatic char * 302185029Spjdhistory_str_get(zfs_cmd_t *zc) 303185029Spjd{ 304185029Spjd char *buf; 305185029Spjd 306185029Spjd if (zc->zc_history == 0) 307185029Spjd return (NULL); 308185029Spjd 309185029Spjd buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); 310185029Spjd if (copyinstr((void *)(uintptr_t)zc->zc_history, 311185029Spjd buf, HIS_MAX_RECORD_LEN, NULL) != 0) { 312185029Spjd history_str_free(buf); 313185029Spjd return (NULL); 314185029Spjd } 315185029Spjd 316185029Spjd buf[HIS_MAX_RECORD_LEN -1] = '\0'; 317185029Spjd 318185029Spjd return (buf); 319185029Spjd} 320185029Spjd 321168404Spjd/* 322185029Spjd * Check to see if the named dataset is currently defined as bootable 323185029Spjd */ 324185029Spjdstatic boolean_t 325185029Spjdzfs_is_bootfs(const char *name) 326185029Spjd{ 327219089Spjd objset_t *os; 328185029Spjd 329219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 330219089Spjd boolean_t ret; 331219089Spjd ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); 332219089Spjd dmu_objset_rele(os, FTAG); 333219089Spjd return (ret); 334185029Spjd } 335219089Spjd return (B_FALSE); 336185029Spjd} 337185029Spjd 338185029Spjd/* 339251631Sdelphij * Return non-zero if the spa version is less than requested version. 340185029Spjd */ 341185029Spjdstatic int 342185029Spjdzfs_earlier_version(const char *name, int version) 343185029Spjd{ 344185029Spjd spa_t *spa; 345185029Spjd 346185029Spjd if (spa_open(name, &spa, FTAG) == 0) { 347185029Spjd if (spa_version(spa) < version) { 348185029Spjd spa_close(spa, FTAG); 349185029Spjd return (1); 350185029Spjd } 351185029Spjd spa_close(spa, FTAG); 352185029Spjd } 353185029Spjd return (0); 354185029Spjd} 355185029Spjd 356185029Spjd/* 357185029Spjd * Return TRUE if the ZPL version is less than requested version. 358185029Spjd */ 359185029Spjdstatic boolean_t 360185029Spjdzpl_earlier_version(const char *name, int version) 361185029Spjd{ 362185029Spjd objset_t *os; 363185029Spjd boolean_t rc = B_TRUE; 364185029Spjd 365219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 366185029Spjd uint64_t zplversion; 367185029Spjd 368219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 369219089Spjd dmu_objset_rele(os, FTAG); 370219089Spjd return (B_TRUE); 371219089Spjd } 372219089Spjd /* XXX reading from non-owned objset */ 373185029Spjd if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) 374185029Spjd rc = zplversion < version; 375219089Spjd dmu_objset_rele(os, FTAG); 376185029Spjd } 377185029Spjd return (rc); 378185029Spjd} 379185029Spjd 380185029Spjdstatic void 381185029Spjdzfs_log_history(zfs_cmd_t *zc) 382185029Spjd{ 383185029Spjd spa_t *spa; 384185029Spjd char *buf; 385185029Spjd 386185029Spjd if ((buf = history_str_get(zc)) == NULL) 387185029Spjd return; 388185029Spjd 389185029Spjd if (spa_open(zc->zc_name, &spa, FTAG) == 0) { 390185029Spjd if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) 391248571Smm (void) spa_history_log(spa, buf); 392185029Spjd spa_close(spa, FTAG); 393185029Spjd } 394185029Spjd history_str_free(buf); 395185029Spjd} 396185029Spjd 397185029Spjd/* 398168404Spjd * Policy for top-level read operations (list pools). Requires no privileges, 399168404Spjd * and can be used in the local zone, as there is no associated dataset. 400168404Spjd */ 401168404Spjd/* ARGSUSED */ 402168404Spjdstatic int 403248571Smmzfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 404168404Spjd{ 405168404Spjd return (0); 406168404Spjd} 407168404Spjd 408168404Spjd/* 409168404Spjd * Policy for dataset read operations (list children, get statistics). Requires 410168404Spjd * no privileges, but must be visible in the local zone. 411168404Spjd */ 412168404Spjd/* ARGSUSED */ 413168404Spjdstatic int 414248571Smmzfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 415168404Spjd{ 416185029Spjd if (INGLOBALZONE(curthread) || 417185029Spjd zone_dataset_visible(zc->zc_name, NULL)) 418168404Spjd return (0); 419168404Spjd 420249195Smm return (SET_ERROR(ENOENT)); 421168404Spjd} 422168404Spjd 423168404Spjdstatic int 424219089Spjdzfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) 425168404Spjd{ 426168404Spjd int writable = 1; 427168404Spjd 428168404Spjd /* 429168404Spjd * The dataset must be visible by this zone -- check this first 430168404Spjd * so they don't see EPERM on something they shouldn't know about. 431168404Spjd */ 432185029Spjd if (!INGLOBALZONE(curthread) && 433168404Spjd !zone_dataset_visible(dataset, &writable)) 434249195Smm return (SET_ERROR(ENOENT)); 435168404Spjd 436185029Spjd if (INGLOBALZONE(curthread)) { 437168404Spjd /* 438168404Spjd * If the fs is zoned, only root can access it from the 439168404Spjd * global zone. 440168404Spjd */ 441168404Spjd if (secpolicy_zfs(cr) && zoned) 442249195Smm return (SET_ERROR(EPERM)); 443168404Spjd } else { 444168404Spjd /* 445168404Spjd * If we are in a local zone, the 'zoned' property must be set. 446168404Spjd */ 447168404Spjd if (!zoned) 448249195Smm return (SET_ERROR(EPERM)); 449168404Spjd 450168404Spjd /* must be writable by this zone */ 451168404Spjd if (!writable) 452249195Smm return (SET_ERROR(EPERM)); 453168404Spjd } 454168404Spjd return (0); 455168404Spjd} 456168404Spjd 457219089Spjdstatic int 458219089Spjdzfs_dozonecheck(const char *dataset, cred_t *cr) 459219089Spjd{ 460219089Spjd uint64_t zoned; 461219089Spjd 462219089Spjd if (dsl_prop_get_integer(dataset, "jailed", &zoned, NULL)) 463249195Smm return (SET_ERROR(ENOENT)); 464219089Spjd 465219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 466219089Spjd} 467219089Spjd 468219089Spjdstatic int 469219089Spjdzfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) 470219089Spjd{ 471219089Spjd uint64_t zoned; 472219089Spjd 473248571Smm if (dsl_prop_get_int_ds(ds, "jailed", &zoned)) 474249195Smm return (SET_ERROR(ENOENT)); 475219089Spjd 476219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 477219089Spjd} 478219089Spjd 479248571Smmstatic int 480248571Smmzfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, 481248571Smm const char *perm, cred_t *cr) 482168404Spjd{ 483168404Spjd int error; 484168404Spjd 485228103Smm error = zfs_dozonecheck_ds(name, ds, cr); 486185029Spjd if (error == 0) { 487185029Spjd error = secpolicy_zfs(cr); 488248571Smm if (error != 0) 489248571Smm error = dsl_deleg_access_impl(ds, perm, cr); 490185029Spjd } 491185029Spjd return (error); 492185029Spjd} 493185029Spjd 494248571Smmstatic int 495248571Smmzfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) 496219089Spjd{ 497219089Spjd int error; 498248571Smm dsl_dataset_t *ds; 499248571Smm dsl_pool_t *dp; 500219089Spjd 501248571Smm error = dsl_pool_hold(name, FTAG, &dp); 502248571Smm if (error != 0) 503248571Smm return (error); 504248571Smm 505248571Smm error = dsl_dataset_hold(dp, name, FTAG, &ds); 506248571Smm if (error != 0) { 507248571Smm dsl_pool_rele(dp, FTAG); 508248571Smm return (error); 509219089Spjd } 510248571Smm 511248571Smm error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); 512248571Smm 513248571Smm dsl_dataset_rele(ds, FTAG); 514248571Smm dsl_pool_rele(dp, FTAG); 515219089Spjd return (error); 516219089Spjd} 517219089Spjd 518219089Spjd#ifdef SECLABEL 519219089Spjd/* 520219089Spjd * Policy for setting the security label property. 521219089Spjd * 522219089Spjd * Returns 0 for success, non-zero for access and other errors. 523219089Spjd */ 524185029Spjdstatic int 525219089Spjdzfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) 526185029Spjd{ 527219089Spjd char ds_hexsl[MAXNAMELEN]; 528219089Spjd bslabel_t ds_sl, new_sl; 529219089Spjd boolean_t new_default = FALSE; 530219089Spjd uint64_t zoned; 531219089Spjd int needed_priv = -1; 532219089Spjd int error; 533219089Spjd 534219089Spjd /* First get the existing dataset label. */ 535219089Spjd error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), 536219089Spjd 1, sizeof (ds_hexsl), &ds_hexsl, NULL); 537248571Smm if (error != 0) 538249195Smm return (SET_ERROR(EPERM)); 539219089Spjd 540219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 541219089Spjd new_default = TRUE; 542219089Spjd 543219089Spjd /* The label must be translatable */ 544219089Spjd if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) 545249195Smm return (SET_ERROR(EINVAL)); 546219089Spjd 547185029Spjd /* 548219089Spjd * In a non-global zone, disallow attempts to set a label that 549219089Spjd * doesn't match that of the zone; otherwise no other checks 550219089Spjd * are needed. 551219089Spjd */ 552219089Spjd if (!INGLOBALZONE(curproc)) { 553219089Spjd if (new_default || !blequal(&new_sl, CR_SL(CRED()))) 554249195Smm return (SET_ERROR(EPERM)); 555219089Spjd return (0); 556219089Spjd } 557219089Spjd 558219089Spjd /* 559219089Spjd * For global-zone datasets (i.e., those whose zoned property is 560219089Spjd * "off", verify that the specified new label is valid for the 561219089Spjd * global zone. 562219089Spjd */ 563219089Spjd if (dsl_prop_get_integer(name, 564219089Spjd zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) 565249195Smm return (SET_ERROR(EPERM)); 566219089Spjd if (!zoned) { 567219089Spjd if (zfs_check_global_label(name, strval) != 0) 568249195Smm return (SET_ERROR(EPERM)); 569219089Spjd } 570219089Spjd 571219089Spjd /* 572219089Spjd * If the existing dataset label is nondefault, check if the 573219089Spjd * dataset is mounted (label cannot be changed while mounted). 574219089Spjd * Get the zfsvfs; if there isn't one, then the dataset isn't 575219089Spjd * mounted (or isn't a dataset, doesn't exist, ...). 576219089Spjd */ 577219089Spjd if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { 578219089Spjd objset_t *os; 579219089Spjd static char *setsl_tag = "setsl_tag"; 580219089Spjd 581219089Spjd /* 582219089Spjd * Try to own the dataset; abort if there is any error, 583219089Spjd * (e.g., already mounted, in use, or other error). 584219089Spjd */ 585219089Spjd error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, 586219089Spjd setsl_tag, &os); 587248571Smm if (error != 0) 588249195Smm return (SET_ERROR(EPERM)); 589219089Spjd 590219089Spjd dmu_objset_disown(os, setsl_tag); 591219089Spjd 592219089Spjd if (new_default) { 593219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 594219089Spjd goto out_check; 595219089Spjd } 596219089Spjd 597219089Spjd if (hexstr_to_label(strval, &new_sl) != 0) 598249195Smm return (SET_ERROR(EPERM)); 599219089Spjd 600219089Spjd if (blstrictdom(&ds_sl, &new_sl)) 601219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 602219089Spjd else if (blstrictdom(&new_sl, &ds_sl)) 603219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 604219089Spjd } else { 605219089Spjd /* dataset currently has a default label */ 606219089Spjd if (!new_default) 607219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 608219089Spjd } 609219089Spjd 610219089Spjdout_check: 611219089Spjd if (needed_priv != -1) 612219089Spjd return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); 613219089Spjd return (0); 614219089Spjd} 615219089Spjd#endif /* SECLABEL */ 616219089Spjd 617219089Spjdstatic int 618219089Spjdzfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, 619219089Spjd cred_t *cr) 620219089Spjd{ 621219089Spjd char *strval; 622219089Spjd 623219089Spjd /* 624185029Spjd * Check permissions for special properties. 625185029Spjd */ 626185029Spjd switch (prop) { 627185029Spjd case ZFS_PROP_ZONED: 628185029Spjd /* 629185029Spjd * Disallow setting of 'zoned' from within a local zone. 630185029Spjd */ 631185029Spjd if (!INGLOBALZONE(curthread)) 632249195Smm return (SET_ERROR(EPERM)); 633185029Spjd break; 634185029Spjd 635185029Spjd case ZFS_PROP_QUOTA: 636185029Spjd if (!INGLOBALZONE(curthread)) { 637185029Spjd uint64_t zoned; 638185029Spjd char setpoint[MAXNAMELEN]; 639185029Spjd /* 640185029Spjd * Unprivileged users are allowed to modify the 641185029Spjd * quota on things *under* (ie. contained by) 642185029Spjd * the thing they own. 643185029Spjd */ 644219089Spjd if (dsl_prop_get_integer(dsname, "jailed", &zoned, 645185029Spjd setpoint)) 646249195Smm return (SET_ERROR(EPERM)); 647219089Spjd if (!zoned || strlen(dsname) <= strlen(setpoint)) 648249195Smm return (SET_ERROR(EPERM)); 649185029Spjd } 650185029Spjd break; 651219089Spjd 652219089Spjd case ZFS_PROP_MLSLABEL: 653219089Spjd#ifdef SECLABEL 654219089Spjd if (!is_system_labeled()) 655249195Smm return (SET_ERROR(EPERM)); 656219089Spjd 657219089Spjd if (nvpair_value_string(propval, &strval) == 0) { 658219089Spjd int err; 659219089Spjd 660219089Spjd err = zfs_set_slabel_policy(dsname, strval, CRED()); 661219089Spjd if (err != 0) 662219089Spjd return (err); 663219089Spjd } 664219089Spjd#else 665219089Spjd return (EOPNOTSUPP); 666219089Spjd#endif 667219089Spjd break; 668185029Spjd } 669185029Spjd 670219089Spjd return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); 671185029Spjd} 672185029Spjd 673248571Smm/* ARGSUSED */ 674248571Smmstatic int 675248571Smmzfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 676185029Spjd{ 677185029Spjd int error; 678185029Spjd 679185029Spjd error = zfs_dozonecheck(zc->zc_name, cr); 680248571Smm if (error != 0) 681168404Spjd return (error); 682168404Spjd 683185029Spjd /* 684185029Spjd * permission to set permissions will be evaluated later in 685185029Spjd * dsl_deleg_can_allow() 686185029Spjd */ 687185029Spjd return (0); 688168404Spjd} 689168404Spjd 690248571Smm/* ARGSUSED */ 691248571Smmstatic int 692248571Smmzfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 693185029Spjd{ 694219089Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 695219089Spjd ZFS_DELEG_PERM_ROLLBACK, cr)); 696185029Spjd} 697185029Spjd 698248571Smm/* ARGSUSED */ 699248571Smmstatic int 700248571Smmzfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 701185029Spjd{ 702219089Spjd dsl_pool_t *dp; 703219089Spjd dsl_dataset_t *ds; 704219089Spjd char *cp; 705219089Spjd int error; 706219089Spjd 707219089Spjd /* 708219089Spjd * Generate the current snapshot name from the given objsetid, then 709219089Spjd * use that name for the secpolicy/zone checks. 710219089Spjd */ 711219089Spjd cp = strchr(zc->zc_name, '@'); 712219089Spjd if (cp == NULL) 713249195Smm return (SET_ERROR(EINVAL)); 714248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 715248571Smm if (error != 0) 716219089Spjd return (error); 717219089Spjd 718219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); 719248571Smm if (error != 0) { 720248571Smm dsl_pool_rele(dp, FTAG); 721219089Spjd return (error); 722248571Smm } 723219089Spjd 724219089Spjd dsl_dataset_name(ds, zc->zc_name); 725219089Spjd 726219089Spjd error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, 727219089Spjd ZFS_DELEG_PERM_SEND, cr); 728219089Spjd dsl_dataset_rele(ds, FTAG); 729248571Smm dsl_pool_rele(dp, FTAG); 730219089Spjd 731219089Spjd return (error); 732185029Spjd} 733185029Spjd 734248571Smm/* ARGSUSED */ 735209962Smmstatic int 736248571Smmzfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 737209962Smm{ 738248571Smm return (zfs_secpolicy_write_perms(zc->zc_name, 739248571Smm ZFS_DELEG_PERM_SEND, cr)); 740248571Smm} 741248571Smm 742248571Smm/* ARGSUSED */ 743248571Smmstatic int 744248571Smmzfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 745248571Smm{ 746209962Smm vnode_t *vp; 747209962Smm int error; 748209962Smm 749209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 750209962Smm NO_FOLLOW, NULL, &vp)) != 0) 751209962Smm return (error); 752209962Smm 753209962Smm /* Now make sure mntpnt and dataset are ZFS */ 754209962Smm 755209962Smm if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 756209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 757209962Smm zc->zc_name) != 0)) { 758209962Smm VN_RELE(vp); 759249195Smm return (SET_ERROR(EPERM)); 760209962Smm } 761209962Smm 762209962Smm VN_RELE(vp); 763209962Smm return (dsl_deleg_access(zc->zc_name, 764209962Smm ZFS_DELEG_PERM_SHARE, cr)); 765209962Smm} 766209962Smm 767185029Spjdint 768248571Smmzfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 769185029Spjd{ 770185029Spjd if (!INGLOBALZONE(curthread)) 771249195Smm return (SET_ERROR(EPERM)); 772185029Spjd 773185029Spjd if (secpolicy_nfs(cr) == 0) { 774185029Spjd return (0); 775185029Spjd } else { 776248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 777209962Smm } 778209962Smm} 779185029Spjd 780209962Smmint 781248571Smmzfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 782209962Smm{ 783209962Smm if (!INGLOBALZONE(curthread)) 784249195Smm return (SET_ERROR(EPERM)); 785185029Spjd 786209962Smm if (secpolicy_smb(cr) == 0) { 787209962Smm return (0); 788209962Smm } else { 789248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 790185029Spjd } 791185029Spjd} 792185029Spjd 793168404Spjdstatic int 794185029Spjdzfs_get_parent(const char *datasetname, char *parent, int parentsize) 795168404Spjd{ 796168404Spjd char *cp; 797168404Spjd 798168404Spjd /* 799168404Spjd * Remove the @bla or /bla from the end of the name to get the parent. 800168404Spjd */ 801185029Spjd (void) strncpy(parent, datasetname, parentsize); 802185029Spjd cp = strrchr(parent, '@'); 803168404Spjd if (cp != NULL) { 804168404Spjd cp[0] = '\0'; 805168404Spjd } else { 806185029Spjd cp = strrchr(parent, '/'); 807168404Spjd if (cp == NULL) 808249195Smm return (SET_ERROR(ENOENT)); 809168404Spjd cp[0] = '\0'; 810185029Spjd } 811168404Spjd 812185029Spjd return (0); 813185029Spjd} 814185029Spjd 815185029Spjdint 816185029Spjdzfs_secpolicy_destroy_perms(const char *name, cred_t *cr) 817185029Spjd{ 818185029Spjd int error; 819185029Spjd 820185029Spjd if ((error = zfs_secpolicy_write_perms(name, 821185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 822185029Spjd return (error); 823185029Spjd 824185029Spjd return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); 825185029Spjd} 826185029Spjd 827248571Smm/* ARGSUSED */ 828185029Spjdstatic int 829248571Smmzfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 830185029Spjd{ 831185029Spjd return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); 832185029Spjd} 833185029Spjd 834185029Spjd/* 835219089Spjd * Destroying snapshots with delegated permissions requires 836248571Smm * descendant mount and destroy permissions. 837185029Spjd */ 838248571Smm/* ARGSUSED */ 839185029Spjdstatic int 840248571Smmzfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 841185029Spjd{ 842248571Smm nvlist_t *snaps; 843248571Smm nvpair_t *pair, *nextpair; 844248571Smm int error = 0; 845219089Spjd 846248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 847249195Smm return (SET_ERROR(EINVAL)); 848248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 849248571Smm pair = nextpair) { 850248571Smm dsl_pool_t *dp; 851248571Smm dsl_dataset_t *ds; 852219089Spjd 853248571Smm error = dsl_pool_hold(nvpair_name(pair), FTAG, &dp); 854248571Smm if (error != 0) 855248571Smm break; 856248571Smm nextpair = nvlist_next_nvpair(snaps, pair); 857248571Smm error = dsl_dataset_hold(dp, nvpair_name(pair), FTAG, &ds); 858248571Smm if (error == 0) 859248571Smm dsl_dataset_rele(ds, FTAG); 860248571Smm dsl_pool_rele(dp, FTAG); 861219089Spjd 862248571Smm if (error == 0) { 863248571Smm error = zfs_secpolicy_destroy_perms(nvpair_name(pair), 864248571Smm cr); 865248571Smm } else if (error == ENOENT) { 866248571Smm /* 867248571Smm * Ignore any snapshots that don't exist (we consider 868248571Smm * them "already destroyed"). Remove the name from the 869248571Smm * nvl here in case the snapshot is created between 870248571Smm * now and when we try to destroy it (in which case 871248571Smm * we don't want to destroy it since we haven't 872248571Smm * checked for permission). 873248571Smm */ 874248571Smm fnvlist_remove_nvpair(snaps, pair); 875248571Smm error = 0; 876248571Smm } 877248571Smm if (error != 0) 878248571Smm break; 879248571Smm } 880222050Smm 881219089Spjd return (error); 882185029Spjd} 883185029Spjd 884185029Spjdint 885185029Spjdzfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) 886185029Spjd{ 887219089Spjd char parentname[MAXNAMELEN]; 888185029Spjd int error; 889185029Spjd 890185029Spjd if ((error = zfs_secpolicy_write_perms(from, 891185029Spjd ZFS_DELEG_PERM_RENAME, cr)) != 0) 892185029Spjd return (error); 893185029Spjd 894185029Spjd if ((error = zfs_secpolicy_write_perms(from, 895185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 896185029Spjd return (error); 897185029Spjd 898185029Spjd if ((error = zfs_get_parent(to, parentname, 899185029Spjd sizeof (parentname))) != 0) 900185029Spjd return (error); 901185029Spjd 902185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 903185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 904185029Spjd return (error); 905185029Spjd 906185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 907185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 908185029Spjd return (error); 909185029Spjd 910185029Spjd return (error); 911185029Spjd} 912185029Spjd 913248571Smm/* ARGSUSED */ 914185029Spjdstatic int 915248571Smmzfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 916185029Spjd{ 917240870Spjd char *at = NULL; 918240870Spjd int error; 919240870Spjd 920240870Spjd if ((zc->zc_cookie & 1) != 0) { 921240870Spjd /* 922240870Spjd * This is recursive rename, so the starting snapshot might 923240870Spjd * not exist. Check file system or volume permission instead. 924240870Spjd */ 925240870Spjd at = strchr(zc->zc_name, '@'); 926240870Spjd if (at == NULL) 927240870Spjd return (EINVAL); 928240870Spjd *at = '\0'; 929240870Spjd } 930240870Spjd 931240870Spjd error = zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr); 932240870Spjd 933240870Spjd if (at != NULL) 934240870Spjd *at = '@'; 935240870Spjd 936240870Spjd return (error); 937185029Spjd} 938185029Spjd 939248571Smm/* ARGSUSED */ 940185029Spjdstatic int 941248571Smmzfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 942185029Spjd{ 943248571Smm dsl_pool_t *dp; 944248571Smm dsl_dataset_t *clone; 945185029Spjd int error; 946185029Spjd 947185029Spjd error = zfs_secpolicy_write_perms(zc->zc_name, 948185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 949248571Smm if (error != 0) 950185029Spjd return (error); 951185029Spjd 952248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 953248571Smm if (error != 0) 954248571Smm return (error); 955185029Spjd 956248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); 957248571Smm 958185029Spjd if (error == 0) { 959248571Smm char parentname[MAXNAMELEN]; 960248571Smm dsl_dataset_t *origin = NULL; 961185029Spjd dsl_dir_t *dd; 962248571Smm dd = clone->ds_dir; 963185029Spjd 964185029Spjd error = dsl_dataset_hold_obj(dd->dd_pool, 965248571Smm dd->dd_phys->dd_origin_obj, FTAG, &origin); 966248571Smm if (error != 0) { 967248571Smm dsl_dataset_rele(clone, FTAG); 968248571Smm dsl_pool_rele(dp, FTAG); 969185029Spjd return (error); 970185029Spjd } 971185029Spjd 972248571Smm error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, 973185029Spjd ZFS_DELEG_PERM_MOUNT, cr); 974185029Spjd 975248571Smm dsl_dataset_name(origin, parentname); 976248571Smm if (error == 0) { 977248571Smm error = zfs_secpolicy_write_perms_ds(parentname, origin, 978185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 979248571Smm } 980248571Smm dsl_dataset_rele(clone, FTAG); 981248571Smm dsl_dataset_rele(origin, FTAG); 982168404Spjd } 983248571Smm dsl_pool_rele(dp, FTAG); 984185029Spjd return (error); 985185029Spjd} 986168404Spjd 987248571Smm/* ARGSUSED */ 988185029Spjdstatic int 989248571Smmzfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 990185029Spjd{ 991185029Spjd int error; 992185029Spjd 993185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 994185029Spjd ZFS_DELEG_PERM_RECEIVE, cr)) != 0) 995185029Spjd return (error); 996185029Spjd 997185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 998185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 999185029Spjd return (error); 1000185029Spjd 1001185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1002185029Spjd ZFS_DELEG_PERM_CREATE, cr)); 1003168404Spjd} 1004168404Spjd 1005185029Spjdint 1006185029Spjdzfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) 1007185029Spjd{ 1008219089Spjd return (zfs_secpolicy_write_perms(name, 1009219089Spjd ZFS_DELEG_PERM_SNAPSHOT, cr)); 1010185029Spjd} 1011185029Spjd 1012248571Smm/* 1013248571Smm * Check for permission to create each snapshot in the nvlist. 1014248571Smm */ 1015248571Smm/* ARGSUSED */ 1016185029Spjdstatic int 1017248571Smmzfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1018185029Spjd{ 1019248571Smm nvlist_t *snaps; 1020248571Smm int error; 1021248571Smm nvpair_t *pair; 1022185029Spjd 1023248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 1024249195Smm return (SET_ERROR(EINVAL)); 1025248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 1026248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 1027248571Smm char *name = nvpair_name(pair); 1028248571Smm char *atp = strchr(name, '@'); 1029248571Smm 1030248571Smm if (atp == NULL) { 1031249195Smm error = SET_ERROR(EINVAL); 1032248571Smm break; 1033248571Smm } 1034248571Smm *atp = '\0'; 1035248571Smm error = zfs_secpolicy_snapshot_perms(name, cr); 1036248571Smm *atp = '@'; 1037248571Smm if (error != 0) 1038248571Smm break; 1039248571Smm } 1040248571Smm return (error); 1041185029Spjd} 1042185029Spjd 1043248571Smm/* ARGSUSED */ 1044185029Spjdstatic int 1045248571Smmzfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1046185029Spjd{ 1047248571Smm /* 1048248571Smm * Even root must have a proper TSD so that we know what pool 1049248571Smm * to log to. 1050248571Smm */ 1051248571Smm if (tsd_get(zfs_allow_log_key) == NULL) 1052249195Smm return (SET_ERROR(EPERM)); 1053248571Smm return (0); 1054248571Smm} 1055248571Smm 1056248571Smmstatic int 1057248571Smmzfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1058248571Smm{ 1059219089Spjd char parentname[MAXNAMELEN]; 1060219089Spjd int error; 1061248571Smm char *origin; 1062185029Spjd 1063185029Spjd if ((error = zfs_get_parent(zc->zc_name, parentname, 1064185029Spjd sizeof (parentname))) != 0) 1065185029Spjd return (error); 1066185029Spjd 1067248571Smm if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && 1068248571Smm (error = zfs_secpolicy_write_perms(origin, 1069248571Smm ZFS_DELEG_PERM_CLONE, cr)) != 0) 1070248571Smm return (error); 1071185029Spjd 1072185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 1073185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 1074185029Spjd return (error); 1075185029Spjd 1076248571Smm return (zfs_secpolicy_write_perms(parentname, 1077248571Smm ZFS_DELEG_PERM_MOUNT, cr)); 1078185029Spjd} 1079185029Spjd 1080168404Spjd/* 1081168404Spjd * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 1082168404Spjd * SYS_CONFIG privilege, which is not available in a local zone. 1083168404Spjd */ 1084168404Spjd/* ARGSUSED */ 1085168404Spjdstatic int 1086248571Smmzfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1087168404Spjd{ 1088168404Spjd if (secpolicy_sys_config(cr, B_FALSE) != 0) 1089249195Smm return (SET_ERROR(EPERM)); 1090168404Spjd 1091168404Spjd return (0); 1092168404Spjd} 1093168404Spjd 1094168404Spjd/* 1095219089Spjd * Policy for object to name lookups. 1096185029Spjd */ 1097219089Spjd/* ARGSUSED */ 1098185029Spjdstatic int 1099248571Smmzfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1100185029Spjd{ 1101219089Spjd int error; 1102185029Spjd 1103219089Spjd if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) 1104219089Spjd return (0); 1105219089Spjd 1106219089Spjd error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); 1107219089Spjd return (error); 1108185029Spjd} 1109185029Spjd 1110185029Spjd/* 1111168404Spjd * Policy for fault injection. Requires all privileges. 1112168404Spjd */ 1113168404Spjd/* ARGSUSED */ 1114168404Spjdstatic int 1115248571Smmzfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1116168404Spjd{ 1117168404Spjd return (secpolicy_zinject(cr)); 1118168404Spjd} 1119168404Spjd 1120248571Smm/* ARGSUSED */ 1121185029Spjdstatic int 1122248571Smmzfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1123185029Spjd{ 1124185029Spjd zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); 1125185029Spjd 1126185029Spjd if (prop == ZPROP_INVAL) { 1127185029Spjd if (!zfs_prop_user(zc->zc_value)) 1128249195Smm return (SET_ERROR(EINVAL)); 1129185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1130185029Spjd ZFS_DELEG_PERM_USERPROP, cr)); 1131185029Spjd } else { 1132219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, prop, 1133219089Spjd NULL, cr)); 1134185029Spjd } 1135185029Spjd} 1136185029Spjd 1137168404Spjdstatic int 1138248571Smmzfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1139209962Smm{ 1140248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1141209962Smm if (err) 1142209962Smm return (err); 1143209962Smm 1144209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1145249195Smm return (SET_ERROR(EINVAL)); 1146209962Smm 1147209962Smm if (zc->zc_value[0] == 0) { 1148209962Smm /* 1149209962Smm * They are asking about a posix uid/gid. If it's 1150209962Smm * themself, allow it. 1151209962Smm */ 1152209962Smm if (zc->zc_objset_type == ZFS_PROP_USERUSED || 1153209962Smm zc->zc_objset_type == ZFS_PROP_USERQUOTA) { 1154209962Smm if (zc->zc_guid == crgetuid(cr)) 1155209962Smm return (0); 1156209962Smm } else { 1157209962Smm if (groupmember(zc->zc_guid, cr)) 1158209962Smm return (0); 1159209962Smm } 1160209962Smm } 1161209962Smm 1162209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1163209962Smm userquota_perms[zc->zc_objset_type], cr)); 1164209962Smm} 1165209962Smm 1166209962Smmstatic int 1167248571Smmzfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1168209962Smm{ 1169248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1170209962Smm if (err) 1171209962Smm return (err); 1172209962Smm 1173209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1174249195Smm return (SET_ERROR(EINVAL)); 1175209962Smm 1176209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1177209962Smm userquota_perms[zc->zc_objset_type], cr)); 1178209962Smm} 1179209962Smm 1180248571Smm/* ARGSUSED */ 1181209962Smmstatic int 1182248571Smmzfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1183209962Smm{ 1184219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, 1185219089Spjd NULL, cr)); 1186209962Smm} 1187209962Smm 1188248571Smm/* ARGSUSED */ 1189219089Spjdstatic int 1190248571Smmzfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1191219089Spjd{ 1192248571Smm nvpair_t *pair; 1193248571Smm nvlist_t *holds; 1194248571Smm int error; 1195248571Smm 1196248571Smm error = nvlist_lookup_nvlist(innvl, "holds", &holds); 1197248571Smm if (error != 0) 1198249195Smm return (SET_ERROR(EINVAL)); 1199248571Smm 1200248571Smm for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; 1201248571Smm pair = nvlist_next_nvpair(holds, pair)) { 1202248571Smm char fsname[MAXNAMELEN]; 1203248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1204248571Smm if (error != 0) 1205248571Smm return (error); 1206248571Smm error = zfs_secpolicy_write_perms(fsname, 1207248571Smm ZFS_DELEG_PERM_HOLD, cr); 1208248571Smm if (error != 0) 1209248571Smm return (error); 1210248571Smm } 1211248571Smm return (0); 1212219089Spjd} 1213219089Spjd 1214248571Smm/* ARGSUSED */ 1215219089Spjdstatic int 1216248571Smmzfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1217219089Spjd{ 1218248571Smm nvpair_t *pair; 1219248571Smm int error; 1220248571Smm 1221248571Smm for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; 1222248571Smm pair = nvlist_next_nvpair(innvl, pair)) { 1223248571Smm char fsname[MAXNAMELEN]; 1224248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1225248571Smm if (error != 0) 1226248571Smm return (error); 1227248571Smm error = zfs_secpolicy_write_perms(fsname, 1228248571Smm ZFS_DELEG_PERM_RELEASE, cr); 1229248571Smm if (error != 0) 1230248571Smm return (error); 1231248571Smm } 1232248571Smm return (0); 1233219089Spjd} 1234219089Spjd 1235168404Spjd/* 1236219089Spjd * Policy for allowing temporary snapshots to be taken or released 1237219089Spjd */ 1238219089Spjdstatic int 1239248571Smmzfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1240219089Spjd{ 1241219089Spjd /* 1242219089Spjd * A temporary snapshot is the same as a snapshot, 1243219089Spjd * hold, destroy and release all rolled into one. 1244219089Spjd * Delegated diff alone is sufficient that we allow this. 1245219089Spjd */ 1246219089Spjd int error; 1247219089Spjd 1248219089Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1249219089Spjd ZFS_DELEG_PERM_DIFF, cr)) == 0) 1250219089Spjd return (0); 1251219089Spjd 1252248571Smm error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); 1253248571Smm if (error == 0) 1254248571Smm error = zfs_secpolicy_hold(zc, innvl, cr); 1255248571Smm if (error == 0) 1256248571Smm error = zfs_secpolicy_release(zc, innvl, cr); 1257248571Smm if (error == 0) 1258248571Smm error = zfs_secpolicy_destroy(zc, innvl, cr); 1259219089Spjd return (error); 1260219089Spjd} 1261219089Spjd 1262219089Spjd/* 1263168404Spjd * Returns the nvlist as specified by the user in the zfs_cmd_t. 1264168404Spjd */ 1265168404Spjdstatic int 1266219089Spjdget_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) 1267168404Spjd{ 1268168404Spjd char *packed; 1269168404Spjd int error; 1270185029Spjd nvlist_t *list = NULL; 1271168404Spjd 1272168404Spjd /* 1273168404Spjd * Read in and unpack the user-supplied nvlist. 1274168404Spjd */ 1275185029Spjd if (size == 0) 1276249195Smm return (SET_ERROR(EINVAL)); 1277168404Spjd 1278168404Spjd packed = kmem_alloc(size, KM_SLEEP); 1279168404Spjd 1280219089Spjd if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, 1281219089Spjd iflag)) != 0) { 1282168404Spjd kmem_free(packed, size); 1283168404Spjd return (error); 1284168404Spjd } 1285168404Spjd 1286185029Spjd if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { 1287168404Spjd kmem_free(packed, size); 1288168404Spjd return (error); 1289168404Spjd } 1290168404Spjd 1291168404Spjd kmem_free(packed, size); 1292168404Spjd 1293185029Spjd *nvp = list; 1294168404Spjd return (0); 1295168404Spjd} 1296168404Spjd 1297248571Smm/* 1298248571Smm * Reduce the size of this nvlist until it can be serialized in 'max' bytes. 1299248571Smm * Entries will be removed from the end of the nvlist, and one int32 entry 1300248571Smm * named "N_MORE_ERRORS" will be added indicating how many entries were 1301248571Smm * removed. 1302248571Smm */ 1303168404Spjdstatic int 1304248571Smmnvlist_smush(nvlist_t *errors, size_t max) 1305219089Spjd{ 1306219089Spjd size_t size; 1307219089Spjd 1308248571Smm size = fnvlist_size(errors); 1309219089Spjd 1310248571Smm if (size > max) { 1311219089Spjd nvpair_t *more_errors; 1312219089Spjd int n = 0; 1313219089Spjd 1314248571Smm if (max < 1024) 1315249195Smm return (SET_ERROR(ENOMEM)); 1316219089Spjd 1317248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); 1318248571Smm more_errors = nvlist_prev_nvpair(errors, NULL); 1319219089Spjd 1320219089Spjd do { 1321248571Smm nvpair_t *pair = nvlist_prev_nvpair(errors, 1322219089Spjd more_errors); 1323248571Smm fnvlist_remove_nvpair(errors, pair); 1324219089Spjd n++; 1325248571Smm size = fnvlist_size(errors); 1326248571Smm } while (size > max); 1327219089Spjd 1328248571Smm fnvlist_remove_nvpair(errors, more_errors); 1329248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); 1330248571Smm ASSERT3U(fnvlist_size(errors), <=, max); 1331219089Spjd } 1332219089Spjd 1333219089Spjd return (0); 1334219089Spjd} 1335219089Spjd 1336219089Spjdstatic int 1337168404Spjdput_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 1338168404Spjd{ 1339168404Spjd char *packed = NULL; 1340219089Spjd int error = 0; 1341168404Spjd size_t size; 1342168404Spjd 1343248571Smm size = fnvlist_size(nvl); 1344168404Spjd 1345168404Spjd if (size > zc->zc_nvlist_dst_size) { 1346168404Spjd /* 1347168404Spjd * Solaris returns ENOMEM here, because even if an error is 1348168404Spjd * returned from an ioctl(2), new zc_nvlist_dst_size will be 1349168404Spjd * passed to the userland. This is not the case for FreeBSD. 1350168404Spjd * We need to return 0, so the kernel will copy the 1351168404Spjd * zc_nvlist_dst_size back and the userland can discover that a 1352168404Spjd * bigger buffer is needed. 1353168404Spjd */ 1354168404Spjd error = 0; 1355168404Spjd } else { 1356248571Smm packed = fnvlist_pack(nvl, &size); 1357219089Spjd if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 1358219089Spjd size, zc->zc_iflags) != 0) 1359249195Smm error = SET_ERROR(EFAULT); 1360248571Smm fnvlist_pack_free(packed, size); 1361168404Spjd } 1362168404Spjd 1363168404Spjd zc->zc_nvlist_dst_size = size; 1364248571Smm zc->zc_nvlist_dst_filled = B_TRUE; 1365168404Spjd return (error); 1366168404Spjd} 1367168404Spjd 1368168404Spjdstatic int 1369219089Spjdgetzfsvfs(const char *dsname, zfsvfs_t **zfvp) 1370209962Smm{ 1371209962Smm objset_t *os; 1372209962Smm int error; 1373209962Smm 1374219089Spjd error = dmu_objset_hold(dsname, FTAG, &os); 1375248571Smm if (error != 0) 1376209962Smm return (error); 1377219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1378219089Spjd dmu_objset_rele(os, FTAG); 1379249195Smm return (SET_ERROR(EINVAL)); 1380219089Spjd } 1381209962Smm 1382219089Spjd mutex_enter(&os->os_user_ptr_lock); 1383219089Spjd *zfvp = dmu_objset_get_user(os); 1384219089Spjd if (*zfvp) { 1385219089Spjd VFS_HOLD((*zfvp)->z_vfs); 1386209962Smm } else { 1387249195Smm error = SET_ERROR(ESRCH); 1388209962Smm } 1389219089Spjd mutex_exit(&os->os_user_ptr_lock); 1390219089Spjd dmu_objset_rele(os, FTAG); 1391209962Smm return (error); 1392209962Smm} 1393209962Smm 1394209962Smm/* 1395209962Smm * Find a zfsvfs_t for a mounted filesystem, or create our own, in which 1396209962Smm * case its z_vfs will be NULL, and it will be opened as the owner. 1397236884Smm * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, 1398236884Smm * which prevents all vnode ops from running. 1399209962Smm */ 1400209962Smmstatic int 1401219089Spjdzfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) 1402209962Smm{ 1403209962Smm int error = 0; 1404209962Smm 1405219089Spjd if (getzfsvfs(name, zfvp) != 0) 1406219089Spjd error = zfsvfs_create(name, zfvp); 1407209962Smm if (error == 0) { 1408219089Spjd rrw_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : 1409219089Spjd RW_READER, tag); 1410219089Spjd if ((*zfvp)->z_unmounted) { 1411209962Smm /* 1412209962Smm * XXX we could probably try again, since the unmounting 1413209962Smm * thread should be just about to disassociate the 1414209962Smm * objset from the zfsvfs. 1415209962Smm */ 1416219089Spjd rrw_exit(&(*zfvp)->z_teardown_lock, tag); 1417249195Smm return (SET_ERROR(EBUSY)); 1418209962Smm } 1419209962Smm } 1420209962Smm return (error); 1421209962Smm} 1422209962Smm 1423209962Smmstatic void 1424209962Smmzfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) 1425209962Smm{ 1426209962Smm rrw_exit(&zfsvfs->z_teardown_lock, tag); 1427209962Smm 1428209962Smm if (zfsvfs->z_vfs) { 1429209962Smm VFS_RELE(zfsvfs->z_vfs); 1430209962Smm } else { 1431219089Spjd dmu_objset_disown(zfsvfs->z_os, zfsvfs); 1432209962Smm zfsvfs_free(zfsvfs); 1433209962Smm } 1434209962Smm} 1435209962Smm 1436209962Smmstatic int 1437168404Spjdzfs_ioc_pool_create(zfs_cmd_t *zc) 1438168404Spjd{ 1439168404Spjd int error; 1440185029Spjd nvlist_t *config, *props = NULL; 1441185029Spjd nvlist_t *rootprops = NULL; 1442185029Spjd nvlist_t *zplprops = NULL; 1443168404Spjd 1444185029Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1445219089Spjd zc->zc_iflags, &config)) 1446168404Spjd return (error); 1447168404Spjd 1448185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1449219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1450219089Spjd zc->zc_iflags, &props))) { 1451185029Spjd nvlist_free(config); 1452185029Spjd return (error); 1453185029Spjd } 1454168404Spjd 1455185029Spjd if (props) { 1456185029Spjd nvlist_t *nvl = NULL; 1457185029Spjd uint64_t version = SPA_VERSION; 1458185029Spjd 1459185029Spjd (void) nvlist_lookup_uint64(props, 1460185029Spjd zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); 1461236884Smm if (!SPA_VERSION_IS_SUPPORTED(version)) { 1462249195Smm error = SET_ERROR(EINVAL); 1463185029Spjd goto pool_props_bad; 1464185029Spjd } 1465185029Spjd (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); 1466185029Spjd if (nvl) { 1467185029Spjd error = nvlist_dup(nvl, &rootprops, KM_SLEEP); 1468185029Spjd if (error != 0) { 1469185029Spjd nvlist_free(config); 1470185029Spjd nvlist_free(props); 1471185029Spjd return (error); 1472185029Spjd } 1473185029Spjd (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); 1474185029Spjd } 1475185029Spjd VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1476185029Spjd error = zfs_fill_zplprops_root(version, rootprops, 1477185029Spjd zplprops, NULL); 1478248571Smm if (error != 0) 1479185029Spjd goto pool_props_bad; 1480185029Spjd } 1481185029Spjd 1482248571Smm error = spa_create(zc->zc_name, config, props, zplprops); 1483185029Spjd 1484185029Spjd /* 1485185029Spjd * Set the remaining root properties 1486185029Spjd */ 1487219089Spjd if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, 1488219089Spjd ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) 1489185029Spjd (void) spa_destroy(zc->zc_name); 1490185029Spjd 1491185029Spjdpool_props_bad: 1492185029Spjd nvlist_free(rootprops); 1493185029Spjd nvlist_free(zplprops); 1494168404Spjd nvlist_free(config); 1495185029Spjd nvlist_free(props); 1496168404Spjd 1497168404Spjd return (error); 1498168404Spjd} 1499168404Spjd 1500168404Spjdstatic int 1501168404Spjdzfs_ioc_pool_destroy(zfs_cmd_t *zc) 1502168404Spjd{ 1503185029Spjd int error; 1504185029Spjd zfs_log_history(zc); 1505185029Spjd error = spa_destroy(zc->zc_name); 1506219089Spjd if (error == 0) 1507219089Spjd zvol_remove_minors(zc->zc_name); 1508185029Spjd return (error); 1509168404Spjd} 1510168404Spjd 1511168404Spjdstatic int 1512168404Spjdzfs_ioc_pool_import(zfs_cmd_t *zc) 1513168404Spjd{ 1514185029Spjd nvlist_t *config, *props = NULL; 1515168404Spjd uint64_t guid; 1516219089Spjd int error; 1517168404Spjd 1518185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1519219089Spjd zc->zc_iflags, &config)) != 0) 1520168404Spjd return (error); 1521168404Spjd 1522185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1523219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1524219089Spjd zc->zc_iflags, &props))) { 1525185029Spjd nvlist_free(config); 1526185029Spjd return (error); 1527185029Spjd } 1528185029Spjd 1529168404Spjd if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 1530168404Spjd guid != zc->zc_guid) 1531249195Smm error = SET_ERROR(EINVAL); 1532168404Spjd else 1533219089Spjd error = spa_import(zc->zc_name, config, props, zc->zc_cookie); 1534168404Spjd 1535219089Spjd if (zc->zc_nvlist_dst != 0) { 1536219089Spjd int err; 1537219089Spjd 1538219089Spjd if ((err = put_nvlist(zc, config)) != 0) 1539219089Spjd error = err; 1540219089Spjd } 1541219089Spjd 1542168404Spjd nvlist_free(config); 1543168404Spjd 1544185029Spjd if (props) 1545185029Spjd nvlist_free(props); 1546185029Spjd 1547168404Spjd return (error); 1548168404Spjd} 1549168404Spjd 1550168404Spjdstatic int 1551168404Spjdzfs_ioc_pool_export(zfs_cmd_t *zc) 1552168404Spjd{ 1553185029Spjd int error; 1554185029Spjd boolean_t force = (boolean_t)zc->zc_cookie; 1555207670Smm boolean_t hardforce = (boolean_t)zc->zc_guid; 1556185029Spjd 1557185029Spjd zfs_log_history(zc); 1558207670Smm error = spa_export(zc->zc_name, NULL, force, hardforce); 1559219089Spjd if (error == 0) 1560219089Spjd zvol_remove_minors(zc->zc_name); 1561185029Spjd return (error); 1562168404Spjd} 1563168404Spjd 1564168404Spjdstatic int 1565168404Spjdzfs_ioc_pool_configs(zfs_cmd_t *zc) 1566168404Spjd{ 1567168404Spjd nvlist_t *configs; 1568168404Spjd int error; 1569168404Spjd 1570168404Spjd if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 1571249195Smm return (SET_ERROR(EEXIST)); 1572168404Spjd 1573168404Spjd error = put_nvlist(zc, configs); 1574168404Spjd 1575168404Spjd nvlist_free(configs); 1576168404Spjd 1577168404Spjd return (error); 1578168404Spjd} 1579168404Spjd 1580236884Smm/* 1581236884Smm * inputs: 1582236884Smm * zc_name name of the pool 1583236884Smm * 1584236884Smm * outputs: 1585236884Smm * zc_cookie real errno 1586236884Smm * zc_nvlist_dst config nvlist 1587236884Smm * zc_nvlist_dst_size size of config nvlist 1588236884Smm */ 1589168404Spjdstatic int 1590168404Spjdzfs_ioc_pool_stats(zfs_cmd_t *zc) 1591168404Spjd{ 1592168404Spjd nvlist_t *config; 1593168404Spjd int error; 1594168404Spjd int ret = 0; 1595168404Spjd 1596168404Spjd error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 1597168404Spjd sizeof (zc->zc_value)); 1598168404Spjd 1599168404Spjd if (config != NULL) { 1600168404Spjd ret = put_nvlist(zc, config); 1601168404Spjd nvlist_free(config); 1602168404Spjd 1603168404Spjd /* 1604168404Spjd * The config may be present even if 'error' is non-zero. 1605168404Spjd * In this case we return success, and preserve the real errno 1606168404Spjd * in 'zc_cookie'. 1607168404Spjd */ 1608168404Spjd zc->zc_cookie = error; 1609168404Spjd } else { 1610168404Spjd ret = error; 1611168404Spjd } 1612168404Spjd 1613168404Spjd return (ret); 1614168404Spjd} 1615168404Spjd 1616168404Spjd/* 1617168404Spjd * Try to import the given pool, returning pool stats as appropriate so that 1618168404Spjd * user land knows which devices are available and overall pool health. 1619168404Spjd */ 1620168404Spjdstatic int 1621168404Spjdzfs_ioc_pool_tryimport(zfs_cmd_t *zc) 1622168404Spjd{ 1623168404Spjd nvlist_t *tryconfig, *config; 1624168404Spjd int error; 1625168404Spjd 1626185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1627219089Spjd zc->zc_iflags, &tryconfig)) != 0) 1628168404Spjd return (error); 1629168404Spjd 1630168404Spjd config = spa_tryimport(tryconfig); 1631168404Spjd 1632168404Spjd nvlist_free(tryconfig); 1633168404Spjd 1634168404Spjd if (config == NULL) 1635249195Smm return (SET_ERROR(EINVAL)); 1636168404Spjd 1637168404Spjd error = put_nvlist(zc, config); 1638168404Spjd nvlist_free(config); 1639168404Spjd 1640168404Spjd return (error); 1641168404Spjd} 1642168404Spjd 1643219089Spjd/* 1644219089Spjd * inputs: 1645219089Spjd * zc_name name of the pool 1646219089Spjd * zc_cookie scan func (pool_scan_func_t) 1647219089Spjd */ 1648168404Spjdstatic int 1649219089Spjdzfs_ioc_pool_scan(zfs_cmd_t *zc) 1650168404Spjd{ 1651168404Spjd spa_t *spa; 1652168404Spjd int error; 1653168404Spjd 1654168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1655168404Spjd return (error); 1656168404Spjd 1657219089Spjd if (zc->zc_cookie == POOL_SCAN_NONE) 1658219089Spjd error = spa_scan_stop(spa); 1659219089Spjd else 1660219089Spjd error = spa_scan(spa, zc->zc_cookie); 1661168404Spjd 1662168404Spjd spa_close(spa, FTAG); 1663168404Spjd 1664168404Spjd return (error); 1665168404Spjd} 1666168404Spjd 1667168404Spjdstatic int 1668168404Spjdzfs_ioc_pool_freeze(zfs_cmd_t *zc) 1669168404Spjd{ 1670168404Spjd spa_t *spa; 1671168404Spjd int error; 1672168404Spjd 1673168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1674168404Spjd if (error == 0) { 1675168404Spjd spa_freeze(spa); 1676168404Spjd spa_close(spa, FTAG); 1677168404Spjd } 1678168404Spjd return (error); 1679168404Spjd} 1680168404Spjd 1681168404Spjdstatic int 1682168404Spjdzfs_ioc_pool_upgrade(zfs_cmd_t *zc) 1683168404Spjd{ 1684168404Spjd spa_t *spa; 1685168404Spjd int error; 1686168404Spjd 1687168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1688168404Spjd return (error); 1689168404Spjd 1690236884Smm if (zc->zc_cookie < spa_version(spa) || 1691236884Smm !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { 1692185029Spjd spa_close(spa, FTAG); 1693249195Smm return (SET_ERROR(EINVAL)); 1694185029Spjd } 1695168404Spjd 1696185029Spjd spa_upgrade(spa, zc->zc_cookie); 1697168404Spjd spa_close(spa, FTAG); 1698168404Spjd 1699168404Spjd return (error); 1700168404Spjd} 1701168404Spjd 1702168404Spjdstatic int 1703168404Spjdzfs_ioc_pool_get_history(zfs_cmd_t *zc) 1704168404Spjd{ 1705168404Spjd spa_t *spa; 1706168404Spjd char *hist_buf; 1707168404Spjd uint64_t size; 1708168404Spjd int error; 1709168404Spjd 1710168404Spjd if ((size = zc->zc_history_len) == 0) 1711249195Smm return (SET_ERROR(EINVAL)); 1712168404Spjd 1713168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1714168404Spjd return (error); 1715168404Spjd 1716185029Spjd if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 1717168404Spjd spa_close(spa, FTAG); 1718249195Smm return (SET_ERROR(ENOTSUP)); 1719168404Spjd } 1720168404Spjd 1721168404Spjd hist_buf = kmem_alloc(size, KM_SLEEP); 1722168404Spjd if ((error = spa_history_get(spa, &zc->zc_history_offset, 1723168404Spjd &zc->zc_history_len, hist_buf)) == 0) { 1724219089Spjd error = ddi_copyout(hist_buf, 1725219089Spjd (void *)(uintptr_t)zc->zc_history, 1726219089Spjd zc->zc_history_len, zc->zc_iflags); 1727168404Spjd } 1728168404Spjd 1729168404Spjd spa_close(spa, FTAG); 1730168404Spjd kmem_free(hist_buf, size); 1731168404Spjd return (error); 1732168404Spjd} 1733168404Spjd 1734168404Spjdstatic int 1735228103Smmzfs_ioc_pool_reguid(zfs_cmd_t *zc) 1736228103Smm{ 1737228103Smm spa_t *spa; 1738228103Smm int error; 1739228103Smm 1740228103Smm error = spa_open(zc->zc_name, &spa, FTAG); 1741228103Smm if (error == 0) { 1742228103Smm error = spa_change_guid(spa); 1743228103Smm spa_close(spa, FTAG); 1744228103Smm } 1745228103Smm return (error); 1746228103Smm} 1747228103Smm 1748228103Smmstatic int 1749168404Spjdzfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) 1750168404Spjd{ 1751248571Smm return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); 1752168404Spjd} 1753168404Spjd 1754219089Spjd/* 1755219089Spjd * inputs: 1756219089Spjd * zc_name name of filesystem 1757219089Spjd * zc_obj object to find 1758219089Spjd * 1759219089Spjd * outputs: 1760219089Spjd * zc_value name of object 1761219089Spjd */ 1762168404Spjdstatic int 1763168404Spjdzfs_ioc_obj_to_path(zfs_cmd_t *zc) 1764168404Spjd{ 1765219089Spjd objset_t *os; 1766168404Spjd int error; 1767168404Spjd 1768219089Spjd /* XXX reading from objset not owned */ 1769219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1770168404Spjd return (error); 1771219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1772219089Spjd dmu_objset_rele(os, FTAG); 1773249195Smm return (SET_ERROR(EINVAL)); 1774219089Spjd } 1775219089Spjd error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, 1776168404Spjd sizeof (zc->zc_value)); 1777219089Spjd dmu_objset_rele(os, FTAG); 1778168404Spjd 1779168404Spjd return (error); 1780168404Spjd} 1781168404Spjd 1782219089Spjd/* 1783219089Spjd * inputs: 1784219089Spjd * zc_name name of filesystem 1785219089Spjd * zc_obj object to find 1786219089Spjd * 1787219089Spjd * outputs: 1788219089Spjd * zc_stat stats on object 1789219089Spjd * zc_value path to object 1790219089Spjd */ 1791168404Spjdstatic int 1792219089Spjdzfs_ioc_obj_to_stats(zfs_cmd_t *zc) 1793219089Spjd{ 1794219089Spjd objset_t *os; 1795219089Spjd int error; 1796219089Spjd 1797219089Spjd /* XXX reading from objset not owned */ 1798219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1799219089Spjd return (error); 1800219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1801219089Spjd dmu_objset_rele(os, FTAG); 1802249195Smm return (SET_ERROR(EINVAL)); 1803219089Spjd } 1804219089Spjd error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, 1805219089Spjd sizeof (zc->zc_value)); 1806219089Spjd dmu_objset_rele(os, FTAG); 1807219089Spjd 1808219089Spjd return (error); 1809219089Spjd} 1810219089Spjd 1811219089Spjdstatic int 1812168404Spjdzfs_ioc_vdev_add(zfs_cmd_t *zc) 1813168404Spjd{ 1814168404Spjd spa_t *spa; 1815168404Spjd int error; 1816185029Spjd nvlist_t *config, **l2cache, **spares; 1817185029Spjd uint_t nl2cache = 0, nspares = 0; 1818168404Spjd 1819168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1820168404Spjd if (error != 0) 1821168404Spjd return (error); 1822168404Spjd 1823185029Spjd error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1824219089Spjd zc->zc_iflags, &config); 1825185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, 1826185029Spjd &l2cache, &nl2cache); 1827185029Spjd 1828185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, 1829185029Spjd &spares, &nspares); 1830185029Spjd 1831254714Savg#ifdef illumos 1832168404Spjd /* 1833168404Spjd * A root pool with concatenated devices is not supported. 1834185029Spjd * Thus, can not add a device to a root pool. 1835185029Spjd * 1836185029Spjd * Intent log device can not be added to a rootpool because 1837185029Spjd * during mountroot, zil is replayed, a seperated log device 1838185029Spjd * can not be accessed during the mountroot time. 1839185029Spjd * 1840185029Spjd * l2cache and spare devices are ok to be added to a rootpool. 1841168404Spjd */ 1842219089Spjd if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { 1843219089Spjd nvlist_free(config); 1844168404Spjd spa_close(spa, FTAG); 1845249195Smm return (SET_ERROR(EDOM)); 1846168404Spjd } 1847254714Savg#endif /* illumos */ 1848168404Spjd 1849185029Spjd if (error == 0) { 1850168404Spjd error = spa_vdev_add(spa, config); 1851168404Spjd nvlist_free(config); 1852168404Spjd } 1853168404Spjd spa_close(spa, FTAG); 1854168404Spjd return (error); 1855168404Spjd} 1856168404Spjd 1857219089Spjd/* 1858219089Spjd * inputs: 1859219089Spjd * zc_name name of the pool 1860219089Spjd * zc_nvlist_conf nvlist of devices to remove 1861219089Spjd * zc_cookie to stop the remove? 1862219089Spjd */ 1863168404Spjdstatic int 1864168404Spjdzfs_ioc_vdev_remove(zfs_cmd_t *zc) 1865168404Spjd{ 1866168404Spjd spa_t *spa; 1867168404Spjd int error; 1868168404Spjd 1869168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1870168404Spjd if (error != 0) 1871168404Spjd return (error); 1872168404Spjd error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 1873168404Spjd spa_close(spa, FTAG); 1874168404Spjd return (error); 1875168404Spjd} 1876168404Spjd 1877168404Spjdstatic int 1878185029Spjdzfs_ioc_vdev_set_state(zfs_cmd_t *zc) 1879168404Spjd{ 1880168404Spjd spa_t *spa; 1881168404Spjd int error; 1882185029Spjd vdev_state_t newstate = VDEV_STATE_UNKNOWN; 1883168404Spjd 1884168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1885168404Spjd return (error); 1886185029Spjd switch (zc->zc_cookie) { 1887185029Spjd case VDEV_STATE_ONLINE: 1888185029Spjd error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); 1889185029Spjd break; 1890168404Spjd 1891185029Spjd case VDEV_STATE_OFFLINE: 1892185029Spjd error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); 1893185029Spjd break; 1894168404Spjd 1895185029Spjd case VDEV_STATE_FAULTED: 1896219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 1897219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 1898219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 1899219089Spjd 1900219089Spjd error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); 1901185029Spjd break; 1902185029Spjd 1903185029Spjd case VDEV_STATE_DEGRADED: 1904219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 1905219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 1906219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 1907219089Spjd 1908219089Spjd error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); 1909185029Spjd break; 1910185029Spjd 1911185029Spjd default: 1912249195Smm error = SET_ERROR(EINVAL); 1913185029Spjd } 1914185029Spjd zc->zc_cookie = newstate; 1915168404Spjd spa_close(spa, FTAG); 1916168404Spjd return (error); 1917168404Spjd} 1918168404Spjd 1919168404Spjdstatic int 1920168404Spjdzfs_ioc_vdev_attach(zfs_cmd_t *zc) 1921168404Spjd{ 1922168404Spjd spa_t *spa; 1923168404Spjd int replacing = zc->zc_cookie; 1924168404Spjd nvlist_t *config; 1925168404Spjd int error; 1926168404Spjd 1927168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1928168404Spjd return (error); 1929168404Spjd 1930185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1931219089Spjd zc->zc_iflags, &config)) == 0) { 1932168404Spjd error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 1933168404Spjd nvlist_free(config); 1934168404Spjd } 1935168404Spjd 1936168404Spjd spa_close(spa, FTAG); 1937168404Spjd return (error); 1938168404Spjd} 1939168404Spjd 1940168404Spjdstatic int 1941168404Spjdzfs_ioc_vdev_detach(zfs_cmd_t *zc) 1942168404Spjd{ 1943168404Spjd spa_t *spa; 1944168404Spjd int error; 1945168404Spjd 1946168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1947168404Spjd return (error); 1948168404Spjd 1949209962Smm error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); 1950168404Spjd 1951168404Spjd spa_close(spa, FTAG); 1952168404Spjd return (error); 1953168404Spjd} 1954168404Spjd 1955168404Spjdstatic int 1956219089Spjdzfs_ioc_vdev_split(zfs_cmd_t *zc) 1957219089Spjd{ 1958219089Spjd spa_t *spa; 1959219089Spjd nvlist_t *config, *props = NULL; 1960219089Spjd int error; 1961219089Spjd boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); 1962219089Spjd 1963219089Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1964219089Spjd return (error); 1965219089Spjd 1966219089Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1967219089Spjd zc->zc_iflags, &config)) { 1968219089Spjd spa_close(spa, FTAG); 1969219089Spjd return (error); 1970219089Spjd } 1971219089Spjd 1972219089Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1973219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1974219089Spjd zc->zc_iflags, &props))) { 1975219089Spjd spa_close(spa, FTAG); 1976219089Spjd nvlist_free(config); 1977219089Spjd return (error); 1978219089Spjd } 1979219089Spjd 1980219089Spjd error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); 1981219089Spjd 1982219089Spjd spa_close(spa, FTAG); 1983219089Spjd 1984219089Spjd nvlist_free(config); 1985219089Spjd nvlist_free(props); 1986219089Spjd 1987219089Spjd return (error); 1988219089Spjd} 1989219089Spjd 1990219089Spjdstatic int 1991168404Spjdzfs_ioc_vdev_setpath(zfs_cmd_t *zc) 1992168404Spjd{ 1993168404Spjd spa_t *spa; 1994168404Spjd char *path = zc->zc_value; 1995168404Spjd uint64_t guid = zc->zc_guid; 1996168404Spjd int error; 1997168404Spjd 1998168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1999168404Spjd if (error != 0) 2000168404Spjd return (error); 2001168404Spjd 2002168404Spjd error = spa_vdev_setpath(spa, guid, path); 2003168404Spjd spa_close(spa, FTAG); 2004168404Spjd return (error); 2005168404Spjd} 2006168404Spjd 2007209962Smmstatic int 2008209962Smmzfs_ioc_vdev_setfru(zfs_cmd_t *zc) 2009209962Smm{ 2010209962Smm spa_t *spa; 2011209962Smm char *fru = zc->zc_value; 2012209962Smm uint64_t guid = zc->zc_guid; 2013209962Smm int error; 2014209962Smm 2015209962Smm error = spa_open(zc->zc_name, &spa, FTAG); 2016209962Smm if (error != 0) 2017209962Smm return (error); 2018209962Smm 2019209962Smm error = spa_vdev_setfru(spa, guid, fru); 2020209962Smm spa_close(spa, FTAG); 2021209962Smm return (error); 2022209962Smm} 2023209962Smm 2024219089Spjdstatic int 2025219089Spjdzfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) 2026219089Spjd{ 2027219089Spjd int error = 0; 2028219089Spjd nvlist_t *nv; 2029219089Spjd 2030219089Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2031219089Spjd 2032219089Spjd if (zc->zc_nvlist_dst != 0 && 2033219089Spjd (error = dsl_prop_get_all(os, &nv)) == 0) { 2034219089Spjd dmu_objset_stats(os, nv); 2035219089Spjd /* 2036219089Spjd * NB: zvol_get_stats() will read the objset contents, 2037219089Spjd * which we aren't supposed to do with a 2038219089Spjd * DS_MODE_USER hold, because it could be 2039219089Spjd * inconsistent. So this is a bit of a workaround... 2040219089Spjd * XXX reading with out owning 2041219089Spjd */ 2042228103Smm if (!zc->zc_objset_stats.dds_inconsistent && 2043228103Smm dmu_objset_type(os) == DMU_OST_ZVOL) { 2044228103Smm error = zvol_get_stats(os, nv); 2045228103Smm if (error == EIO) 2046228103Smm return (error); 2047240415Smm VERIFY0(error); 2048219089Spjd } 2049219089Spjd error = put_nvlist(zc, nv); 2050219089Spjd nvlist_free(nv); 2051219089Spjd } 2052219089Spjd 2053219089Spjd return (error); 2054219089Spjd} 2055219089Spjd 2056185029Spjd/* 2057185029Spjd * inputs: 2058185029Spjd * zc_name name of filesystem 2059185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2060185029Spjd * 2061185029Spjd * outputs: 2062185029Spjd * zc_objset_stats stats 2063185029Spjd * zc_nvlist_dst property nvlist 2064185029Spjd * zc_nvlist_dst_size size of property nvlist 2065185029Spjd */ 2066168404Spjdstatic int 2067168404Spjdzfs_ioc_objset_stats(zfs_cmd_t *zc) 2068168404Spjd{ 2069248571Smm objset_t *os; 2070168404Spjd int error; 2071219089Spjd 2072248571Smm error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2073248571Smm if (error == 0) { 2074248571Smm error = zfs_ioc_objset_stats_impl(zc, os); 2075248571Smm dmu_objset_rele(os, FTAG); 2076248571Smm } 2077219089Spjd 2078219089Spjd if (error == ENOMEM) 2079219089Spjd error = 0; 2080219089Spjd return (error); 2081219089Spjd} 2082219089Spjd 2083219089Spjd/* 2084219089Spjd * inputs: 2085219089Spjd * zc_name name of filesystem 2086219089Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2087219089Spjd * 2088219089Spjd * outputs: 2089219089Spjd * zc_nvlist_dst received property nvlist 2090219089Spjd * zc_nvlist_dst_size size of received property nvlist 2091219089Spjd * 2092219089Spjd * Gets received properties (distinct from local properties on or after 2093219089Spjd * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from 2094219089Spjd * local property values. 2095219089Spjd */ 2096219089Spjdstatic int 2097219089Spjdzfs_ioc_objset_recvd_props(zfs_cmd_t *zc) 2098219089Spjd{ 2099248571Smm int error = 0; 2100168404Spjd nvlist_t *nv; 2101168404Spjd 2102219089Spjd /* 2103219089Spjd * Without this check, we would return local property values if the 2104219089Spjd * caller has not already received properties on or after 2105219089Spjd * SPA_VERSION_RECVD_PROPS. 2106219089Spjd */ 2107248571Smm if (!dsl_prop_get_hasrecvd(zc->zc_name)) 2108249195Smm return (SET_ERROR(ENOTSUP)); 2109168404Spjd 2110168404Spjd if (zc->zc_nvlist_dst != 0 && 2111248571Smm (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { 2112168404Spjd error = put_nvlist(zc, nv); 2113168404Spjd nvlist_free(nv); 2114168404Spjd } 2115168404Spjd 2116168404Spjd return (error); 2117168404Spjd} 2118168404Spjd 2119168404Spjdstatic int 2120185029Spjdnvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) 2121185029Spjd{ 2122185029Spjd uint64_t value; 2123185029Spjd int error; 2124185029Spjd 2125185029Spjd /* 2126185029Spjd * zfs_get_zplprop() will either find a value or give us 2127185029Spjd * the default value (if there is one). 2128185029Spjd */ 2129185029Spjd if ((error = zfs_get_zplprop(os, prop, &value)) != 0) 2130185029Spjd return (error); 2131185029Spjd VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); 2132185029Spjd return (0); 2133185029Spjd} 2134185029Spjd 2135185029Spjd/* 2136185029Spjd * inputs: 2137185029Spjd * zc_name name of filesystem 2138185029Spjd * zc_nvlist_dst_size size of buffer for zpl property nvlist 2139185029Spjd * 2140185029Spjd * outputs: 2141185029Spjd * zc_nvlist_dst zpl property nvlist 2142185029Spjd * zc_nvlist_dst_size size of zpl property nvlist 2143185029Spjd */ 2144185029Spjdstatic int 2145185029Spjdzfs_ioc_objset_zplprops(zfs_cmd_t *zc) 2146185029Spjd{ 2147185029Spjd objset_t *os; 2148185029Spjd int err; 2149185029Spjd 2150219089Spjd /* XXX reading without owning */ 2151219089Spjd if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) 2152185029Spjd return (err); 2153185029Spjd 2154185029Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2155185029Spjd 2156185029Spjd /* 2157185029Spjd * NB: nvl_add_zplprop() will read the objset contents, 2158185029Spjd * which we aren't supposed to do with a DS_MODE_USER 2159185029Spjd * hold, because it could be inconsistent. 2160185029Spjd */ 2161185029Spjd if (zc->zc_nvlist_dst != 0 && 2162185029Spjd !zc->zc_objset_stats.dds_inconsistent && 2163185029Spjd dmu_objset_type(os) == DMU_OST_ZFS) { 2164185029Spjd nvlist_t *nv; 2165185029Spjd 2166185029Spjd VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2167185029Spjd if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && 2168185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && 2169185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && 2170185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) 2171185029Spjd err = put_nvlist(zc, nv); 2172185029Spjd nvlist_free(nv); 2173185029Spjd } else { 2174249195Smm err = SET_ERROR(ENOENT); 2175185029Spjd } 2176219089Spjd dmu_objset_rele(os, FTAG); 2177185029Spjd return (err); 2178185029Spjd} 2179185029Spjd 2180219089Spjdboolean_t 2181209962Smmdataset_name_hidden(const char *name) 2182209962Smm{ 2183209962Smm /* 2184209962Smm * Skip over datasets that are not visible in this zone, 2185209962Smm * internal datasets (which have a $ in their name), and 2186209962Smm * temporary datasets (which have a % in their name). 2187209962Smm */ 2188209962Smm if (strchr(name, '$') != NULL) 2189209962Smm return (B_TRUE); 2190209962Smm if (strchr(name, '%') != NULL) 2191209962Smm return (B_TRUE); 2192209962Smm if (!INGLOBALZONE(curthread) && !zone_dataset_visible(name, NULL)) 2193209962Smm return (B_TRUE); 2194209962Smm return (B_FALSE); 2195209962Smm} 2196209962Smm 2197185029Spjd/* 2198185029Spjd * inputs: 2199185029Spjd * zc_name name of filesystem 2200185029Spjd * zc_cookie zap cursor 2201185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2202185029Spjd * 2203185029Spjd * outputs: 2204185029Spjd * zc_name name of next filesystem 2205209962Smm * zc_cookie zap cursor 2206185029Spjd * zc_objset_stats stats 2207185029Spjd * zc_nvlist_dst property nvlist 2208185029Spjd * zc_nvlist_dst_size size of property nvlist 2209185029Spjd */ 2210185029Spjdstatic int 2211168404Spjdzfs_ioc_dataset_list_next(zfs_cmd_t *zc) 2212168404Spjd{ 2213168404Spjd objset_t *os; 2214168404Spjd int error; 2215168404Spjd char *p; 2216219089Spjd size_t orig_len = strlen(zc->zc_name); 2217168404Spjd 2218219089Spjdtop: 2219219089Spjd if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { 2220168404Spjd if (error == ENOENT) 2221249195Smm error = SET_ERROR(ESRCH); 2222168404Spjd return (error); 2223168404Spjd } 2224168404Spjd 2225168404Spjd p = strrchr(zc->zc_name, '/'); 2226168404Spjd if (p == NULL || p[1] != '\0') 2227168404Spjd (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 2228168404Spjd p = zc->zc_name + strlen(zc->zc_name); 2229168404Spjd 2230168404Spjd do { 2231168404Spjd error = dmu_dir_list_next(os, 2232168404Spjd sizeof (zc->zc_name) - (p - zc->zc_name), p, 2233168404Spjd NULL, &zc->zc_cookie); 2234168404Spjd if (error == ENOENT) 2235249195Smm error = SET_ERROR(ESRCH); 2236228103Smm } while (error == 0 && dataset_name_hidden(zc->zc_name)); 2237219089Spjd dmu_objset_rele(os, FTAG); 2238168404Spjd 2239219089Spjd /* 2240219089Spjd * If it's an internal dataset (ie. with a '$' in its name), 2241219089Spjd * don't try to get stats for it, otherwise we'll return ENOENT. 2242219089Spjd */ 2243219089Spjd if (error == 0 && strchr(zc->zc_name, '$') == NULL) { 2244168404Spjd error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 2245219089Spjd if (error == ENOENT) { 2246219089Spjd /* We lost a race with destroy, get the next one. */ 2247219089Spjd zc->zc_name[orig_len] = '\0'; 2248219089Spjd goto top; 2249219089Spjd } 2250219089Spjd } 2251168404Spjd return (error); 2252168404Spjd} 2253168404Spjd 2254185029Spjd/* 2255185029Spjd * inputs: 2256185029Spjd * zc_name name of filesystem 2257185029Spjd * zc_cookie zap cursor 2258185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2259230438Spjd * zc_simple when set, only name is requested 2260185029Spjd * 2261185029Spjd * outputs: 2262185029Spjd * zc_name name of next snapshot 2263185029Spjd * zc_objset_stats stats 2264185029Spjd * zc_nvlist_dst property nvlist 2265185029Spjd * zc_nvlist_dst_size size of property nvlist 2266185029Spjd */ 2267168404Spjdstatic int 2268168404Spjdzfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 2269168404Spjd{ 2270168404Spjd objset_t *os; 2271168404Spjd int error; 2272168404Spjd 2273219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2274248571Smm if (error != 0) { 2275185029Spjd return (error == ENOENT ? ESRCH : error); 2276248571Smm } 2277168404Spjd 2278168404Spjd /* 2279168404Spjd * A dataset name of maximum length cannot have any snapshots, 2280168404Spjd * so exit immediately. 2281168404Spjd */ 2282168404Spjd if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { 2283219089Spjd dmu_objset_rele(os, FTAG); 2284249195Smm return (SET_ERROR(ESRCH)); 2285168404Spjd } 2286168404Spjd 2287168404Spjd error = dmu_snapshot_list_next(os, 2288168404Spjd sizeof (zc->zc_name) - strlen(zc->zc_name), 2289219089Spjd zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, 2290219089Spjd NULL); 2291219089Spjd 2292230438Spjd if (error == 0 && !zc->zc_simple) { 2293219089Spjd dsl_dataset_t *ds; 2294219089Spjd dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; 2295219089Spjd 2296219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); 2297248571Smm if (error == 0) { 2298219089Spjd objset_t *ossnap; 2299219089Spjd 2300219089Spjd error = dmu_objset_from_ds(ds, &ossnap); 2301219089Spjd if (error == 0) 2302219089Spjd error = zfs_ioc_objset_stats_impl(zc, ossnap); 2303219089Spjd dsl_dataset_rele(ds, FTAG); 2304219089Spjd } 2305219089Spjd } else if (error == ENOENT) { 2306249195Smm error = SET_ERROR(ESRCH); 2307219089Spjd } 2308168404Spjd 2309219089Spjd dmu_objset_rele(os, FTAG); 2310185029Spjd /* if we failed, undo the @ that we tacked on to zc_name */ 2311248571Smm if (error != 0) 2312185029Spjd *strchr(zc->zc_name, '@') = '\0'; 2313168404Spjd return (error); 2314168404Spjd} 2315168404Spjd 2316219089Spjdstatic int 2317219089Spjdzfs_prop_set_userquota(const char *dsname, nvpair_t *pair) 2318168404Spjd{ 2319219089Spjd const char *propname = nvpair_name(pair); 2320219089Spjd uint64_t *valary; 2321219089Spjd unsigned int vallen; 2322219089Spjd const char *domain; 2323219089Spjd char *dash; 2324219089Spjd zfs_userquota_prop_t type; 2325219089Spjd uint64_t rid; 2326219089Spjd uint64_t quota; 2327219089Spjd zfsvfs_t *zfsvfs; 2328219089Spjd int err; 2329168404Spjd 2330219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2331219089Spjd nvlist_t *attrs; 2332219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2333219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2334219089Spjd &pair) != 0) 2335249195Smm return (SET_ERROR(EINVAL)); 2336219089Spjd } 2337219089Spjd 2338185029Spjd /* 2339219089Spjd * A correctly constructed propname is encoded as 2340219089Spjd * userquota@<rid>-<domain>. 2341185029Spjd */ 2342219089Spjd if ((dash = strchr(propname, '-')) == NULL || 2343219089Spjd nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || 2344219089Spjd vallen != 3) 2345249195Smm return (SET_ERROR(EINVAL)); 2346168404Spjd 2347219089Spjd domain = dash + 1; 2348219089Spjd type = valary[0]; 2349219089Spjd rid = valary[1]; 2350219089Spjd quota = valary[2]; 2351168404Spjd 2352219089Spjd err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); 2353219089Spjd if (err == 0) { 2354219089Spjd err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); 2355219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2356219089Spjd } 2357209962Smm 2358219089Spjd return (err); 2359219089Spjd} 2360168404Spjd 2361219089Spjd/* 2362219089Spjd * If the named property is one that has a special function to set its value, 2363219089Spjd * return 0 on success and a positive error code on failure; otherwise if it is 2364219089Spjd * not one of the special properties handled by this function, return -1. 2365219089Spjd * 2366219089Spjd * XXX: It would be better for callers of the property interface if we handled 2367219089Spjd * these special cases in dsl_prop.c (in the dsl layer). 2368219089Spjd */ 2369219089Spjdstatic int 2370219089Spjdzfs_prop_set_special(const char *dsname, zprop_source_t source, 2371219089Spjd nvpair_t *pair) 2372219089Spjd{ 2373219089Spjd const char *propname = nvpair_name(pair); 2374219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2375219089Spjd uint64_t intval; 2376219089Spjd int err; 2377209962Smm 2378219089Spjd if (prop == ZPROP_INVAL) { 2379219089Spjd if (zfs_prop_userquota(propname)) 2380219089Spjd return (zfs_prop_set_userquota(dsname, pair)); 2381219089Spjd return (-1); 2382219089Spjd } 2383185029Spjd 2384219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2385219089Spjd nvlist_t *attrs; 2386219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2387219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2388219089Spjd &pair) == 0); 2389219089Spjd } 2390168404Spjd 2391219089Spjd if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) 2392219089Spjd return (-1); 2393185029Spjd 2394219089Spjd VERIFY(0 == nvpair_value_uint64(pair, &intval)); 2395185029Spjd 2396219089Spjd switch (prop) { 2397219089Spjd case ZFS_PROP_QUOTA: 2398219089Spjd err = dsl_dir_set_quota(dsname, source, intval); 2399219089Spjd break; 2400219089Spjd case ZFS_PROP_REFQUOTA: 2401248571Smm err = dsl_dataset_set_refquota(dsname, source, intval); 2402219089Spjd break; 2403219089Spjd case ZFS_PROP_RESERVATION: 2404219089Spjd err = dsl_dir_set_reservation(dsname, source, intval); 2405219089Spjd break; 2406219089Spjd case ZFS_PROP_REFRESERVATION: 2407248571Smm err = dsl_dataset_set_refreservation(dsname, source, intval); 2408219089Spjd break; 2409219089Spjd case ZFS_PROP_VOLSIZE: 2410219089Spjd err = zvol_set_volsize(dsname, ddi_driver_major(zfs_dip), 2411219089Spjd intval); 2412219089Spjd break; 2413219089Spjd case ZFS_PROP_VERSION: 2414219089Spjd { 2415219089Spjd zfsvfs_t *zfsvfs; 2416219089Spjd 2417219089Spjd if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) 2418185029Spjd break; 2419201143Sdelphij 2420219089Spjd err = zfs_set_version(zfsvfs, intval); 2421219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2422168404Spjd 2423219089Spjd if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { 2424219089Spjd zfs_cmd_t *zc; 2425185029Spjd 2426219089Spjd zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 2427219089Spjd (void) strcpy(zc->zc_name, dsname); 2428219089Spjd (void) zfs_ioc_userspace_upgrade(zc); 2429219089Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 2430185029Spjd } 2431219089Spjd break; 2432219089Spjd } 2433246586Sdelphij case ZFS_PROP_COMPRESSION: 2434246586Sdelphij { 2435246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 2436246586Sdelphij zfeature_info_t *feature = 2437246586Sdelphij &spa_feature_table[SPA_FEATURE_LZ4_COMPRESS]; 2438246586Sdelphij spa_t *spa; 2439185029Spjd 2440246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 2441246586Sdelphij return (err); 2442246586Sdelphij 2443246586Sdelphij /* 2444246586Sdelphij * Setting the LZ4 compression algorithm activates 2445246586Sdelphij * the feature. 2446246586Sdelphij */ 2447246586Sdelphij if (!spa_feature_is_active(spa, feature)) { 2448248571Smm if ((err = zfs_prop_activate_feature(spa, 2449246586Sdelphij feature)) != 0) { 2450246586Sdelphij spa_close(spa, FTAG); 2451246586Sdelphij return (err); 2452246586Sdelphij } 2453246586Sdelphij } 2454246586Sdelphij 2455246586Sdelphij spa_close(spa, FTAG); 2456246586Sdelphij } 2457246586Sdelphij /* 2458246586Sdelphij * We still want the default set action to be performed in the 2459246586Sdelphij * caller, we only performed zfeature settings here. 2460246586Sdelphij */ 2461246586Sdelphij err = -1; 2462246586Sdelphij break; 2463246586Sdelphij } 2464246586Sdelphij 2465219089Spjd default: 2466219089Spjd err = -1; 2467219089Spjd } 2468168404Spjd 2469219089Spjd return (err); 2470219089Spjd} 2471185029Spjd 2472219089Spjd/* 2473219089Spjd * This function is best effort. If it fails to set any of the given properties, 2474248571Smm * it continues to set as many as it can and returns the last error 2475248571Smm * encountered. If the caller provides a non-NULL errlist, it will be filled in 2476248571Smm * with the list of names of all the properties that failed along with the 2477248571Smm * corresponding error numbers. 2478219089Spjd * 2479248571Smm * If every property is set successfully, zero is returned and errlist is not 2480248571Smm * modified. 2481219089Spjd */ 2482219089Spjdint 2483219089Spjdzfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, 2484248571Smm nvlist_t *errlist) 2485219089Spjd{ 2486219089Spjd nvpair_t *pair; 2487219089Spjd nvpair_t *propval; 2488219089Spjd int rv = 0; 2489219089Spjd uint64_t intval; 2490219089Spjd char *strval; 2491248571Smm nvlist_t *genericnvl = fnvlist_alloc(); 2492248571Smm nvlist_t *retrynvl = fnvlist_alloc(); 2493168404Spjd 2494219089Spjdretry: 2495219089Spjd pair = NULL; 2496219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2497219089Spjd const char *propname = nvpair_name(pair); 2498219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2499219089Spjd int err = 0; 2500185029Spjd 2501219089Spjd /* decode the property value */ 2502219089Spjd propval = pair; 2503219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2504219089Spjd nvlist_t *attrs; 2505248571Smm attrs = fnvpair_value_nvlist(pair); 2506219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2507219089Spjd &propval) != 0) 2508249195Smm err = SET_ERROR(EINVAL); 2509219089Spjd } 2510168404Spjd 2511219089Spjd /* Validate value type */ 2512219089Spjd if (err == 0 && prop == ZPROP_INVAL) { 2513219089Spjd if (zfs_prop_user(propname)) { 2514219089Spjd if (nvpair_type(propval) != DATA_TYPE_STRING) 2515249195Smm err = SET_ERROR(EINVAL); 2516219089Spjd } else if (zfs_prop_userquota(propname)) { 2517219089Spjd if (nvpair_type(propval) != 2518219089Spjd DATA_TYPE_UINT64_ARRAY) 2519249195Smm err = SET_ERROR(EINVAL); 2520228103Smm } else { 2521249195Smm err = SET_ERROR(EINVAL); 2522209962Smm } 2523219089Spjd } else if (err == 0) { 2524219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2525219089Spjd if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) 2526249195Smm err = SET_ERROR(EINVAL); 2527219089Spjd } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { 2528168404Spjd const char *unused; 2529168404Spjd 2530248571Smm intval = fnvpair_value_uint64(propval); 2531168404Spjd 2532168404Spjd switch (zfs_prop_get_type(prop)) { 2533185029Spjd case PROP_TYPE_NUMBER: 2534168404Spjd break; 2535185029Spjd case PROP_TYPE_STRING: 2536249195Smm err = SET_ERROR(EINVAL); 2537219089Spjd break; 2538185029Spjd case PROP_TYPE_INDEX: 2539168404Spjd if (zfs_prop_index_to_string(prop, 2540219089Spjd intval, &unused) != 0) 2541249195Smm err = SET_ERROR(EINVAL); 2542168404Spjd break; 2543168404Spjd default: 2544185029Spjd cmn_err(CE_PANIC, 2545185029Spjd "unknown property type"); 2546168404Spjd } 2547168404Spjd } else { 2548249195Smm err = SET_ERROR(EINVAL); 2549168404Spjd } 2550168404Spjd } 2551219089Spjd 2552219089Spjd /* Validate permissions */ 2553219089Spjd if (err == 0) 2554219089Spjd err = zfs_check_settable(dsname, pair, CRED()); 2555219089Spjd 2556219089Spjd if (err == 0) { 2557219089Spjd err = zfs_prop_set_special(dsname, source, pair); 2558219089Spjd if (err == -1) { 2559219089Spjd /* 2560219089Spjd * For better performance we build up a list of 2561219089Spjd * properties to set in a single transaction. 2562219089Spjd */ 2563219089Spjd err = nvlist_add_nvpair(genericnvl, pair); 2564219089Spjd } else if (err != 0 && nvl != retrynvl) { 2565219089Spjd /* 2566219089Spjd * This may be a spurious error caused by 2567219089Spjd * receiving quota and reservation out of order. 2568219089Spjd * Try again in a second pass. 2569219089Spjd */ 2570219089Spjd err = nvlist_add_nvpair(retrynvl, pair); 2571219089Spjd } 2572219089Spjd } 2573219089Spjd 2574248571Smm if (err != 0) { 2575248571Smm if (errlist != NULL) 2576248571Smm fnvlist_add_int32(errlist, propname, err); 2577248571Smm rv = err; 2578248571Smm } 2579168404Spjd } 2580168404Spjd 2581219089Spjd if (nvl != retrynvl && !nvlist_empty(retrynvl)) { 2582219089Spjd nvl = retrynvl; 2583219089Spjd goto retry; 2584209962Smm } 2585219089Spjd 2586219089Spjd if (!nvlist_empty(genericnvl) && 2587219089Spjd dsl_props_set(dsname, source, genericnvl) != 0) { 2588219089Spjd /* 2589219089Spjd * If this fails, we still want to set as many properties as we 2590219089Spjd * can, so try setting them individually. 2591219089Spjd */ 2592219089Spjd pair = NULL; 2593219089Spjd while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { 2594219089Spjd const char *propname = nvpair_name(pair); 2595219089Spjd int err = 0; 2596219089Spjd 2597219089Spjd propval = pair; 2598219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2599219089Spjd nvlist_t *attrs; 2600248571Smm attrs = fnvpair_value_nvlist(pair); 2601248571Smm propval = fnvlist_lookup_nvpair(attrs, 2602248571Smm ZPROP_VALUE); 2603219089Spjd } 2604219089Spjd 2605219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2606248571Smm strval = fnvpair_value_string(propval); 2607248571Smm err = dsl_prop_set_string(dsname, propname, 2608248571Smm source, strval); 2609219089Spjd } else { 2610248571Smm intval = fnvpair_value_uint64(propval); 2611248571Smm err = dsl_prop_set_int(dsname, propname, source, 2612248571Smm intval); 2613219089Spjd } 2614219089Spjd 2615219089Spjd if (err != 0) { 2616248571Smm if (errlist != NULL) { 2617248571Smm fnvlist_add_int32(errlist, propname, 2618248571Smm err); 2619248571Smm } 2620248571Smm rv = err; 2621219089Spjd } 2622219089Spjd } 2623219089Spjd } 2624209962Smm nvlist_free(genericnvl); 2625219089Spjd nvlist_free(retrynvl); 2626219089Spjd 2627219089Spjd return (rv); 2628209962Smm} 2629209962Smm 2630209962Smm/* 2631209962Smm * Check that all the properties are valid user properties. 2632209962Smm */ 2633209962Smmstatic int 2634248571Smmzfs_check_userprops(const char *fsname, nvlist_t *nvl) 2635209962Smm{ 2636219089Spjd nvpair_t *pair = NULL; 2637209962Smm int error = 0; 2638209962Smm 2639219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2640219089Spjd const char *propname = nvpair_name(pair); 2641209962Smm char *valstr; 2642209962Smm 2643209962Smm if (!zfs_prop_user(propname) || 2644219089Spjd nvpair_type(pair) != DATA_TYPE_STRING) 2645249195Smm return (SET_ERROR(EINVAL)); 2646209962Smm 2647209962Smm if (error = zfs_secpolicy_write_perms(fsname, 2648209962Smm ZFS_DELEG_PERM_USERPROP, CRED())) 2649209962Smm return (error); 2650209962Smm 2651209962Smm if (strlen(propname) >= ZAP_MAXNAMELEN) 2652249195Smm return (SET_ERROR(ENAMETOOLONG)); 2653209962Smm 2654219089Spjd VERIFY(nvpair_value_string(pair, &valstr) == 0); 2655209962Smm if (strlen(valstr) >= ZAP_MAXVALUELEN) 2656209962Smm return (E2BIG); 2657209962Smm } 2658168404Spjd return (0); 2659168404Spjd} 2660168404Spjd 2661219089Spjdstatic void 2662219089Spjdprops_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) 2663219089Spjd{ 2664219089Spjd nvpair_t *pair; 2665219089Spjd 2666219089Spjd VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2667219089Spjd 2668219089Spjd pair = NULL; 2669219089Spjd while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { 2670219089Spjd if (nvlist_exists(skipped, nvpair_name(pair))) 2671219089Spjd continue; 2672219089Spjd 2673219089Spjd VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); 2674219089Spjd } 2675219089Spjd} 2676219089Spjd 2677219089Spjdstatic int 2678248571Smmclear_received_props(const char *dsname, nvlist_t *props, 2679219089Spjd nvlist_t *skipped) 2680219089Spjd{ 2681219089Spjd int err = 0; 2682219089Spjd nvlist_t *cleared_props = NULL; 2683219089Spjd props_skip(props, skipped, &cleared_props); 2684219089Spjd if (!nvlist_empty(cleared_props)) { 2685219089Spjd /* 2686219089Spjd * Acts on local properties until the dataset has received 2687219089Spjd * properties at least once on or after SPA_VERSION_RECVD_PROPS. 2688219089Spjd */ 2689219089Spjd zprop_source_t flags = (ZPROP_SRC_NONE | 2690248571Smm (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); 2691248571Smm err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); 2692219089Spjd } 2693219089Spjd nvlist_free(cleared_props); 2694219089Spjd return (err); 2695219089Spjd} 2696219089Spjd 2697185029Spjd/* 2698185029Spjd * inputs: 2699185029Spjd * zc_name name of filesystem 2700209962Smm * zc_value name of property to set 2701185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 2702219089Spjd * zc_cookie received properties flag 2703185029Spjd * 2704219089Spjd * outputs: 2705219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 2706185029Spjd */ 2707168404Spjdstatic int 2708168404Spjdzfs_ioc_set_prop(zfs_cmd_t *zc) 2709168404Spjd{ 2710168404Spjd nvlist_t *nvl; 2711219089Spjd boolean_t received = zc->zc_cookie; 2712219089Spjd zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : 2713219089Spjd ZPROP_SRC_LOCAL); 2714248571Smm nvlist_t *errors; 2715168404Spjd int error; 2716168404Spjd 2717185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2718219089Spjd zc->zc_iflags, &nvl)) != 0) 2719185029Spjd return (error); 2720168404Spjd 2721219089Spjd if (received) { 2722185029Spjd nvlist_t *origprops; 2723185029Spjd 2724248571Smm if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { 2725248571Smm (void) clear_received_props(zc->zc_name, 2726248571Smm origprops, nvl); 2727248571Smm nvlist_free(origprops); 2728248571Smm } 2729219089Spjd 2730248571Smm error = dsl_prop_set_hasrecvd(zc->zc_name); 2731219089Spjd } 2732185029Spjd 2733248571Smm errors = fnvlist_alloc(); 2734248571Smm if (error == 0) 2735248571Smm error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); 2736219089Spjd 2737219089Spjd if (zc->zc_nvlist_dst != 0 && errors != NULL) { 2738219089Spjd (void) put_nvlist(zc, errors); 2739168404Spjd } 2740168404Spjd 2741219089Spjd nvlist_free(errors); 2742168404Spjd nvlist_free(nvl); 2743168404Spjd return (error); 2744168404Spjd} 2745168404Spjd 2746185029Spjd/* 2747185029Spjd * inputs: 2748185029Spjd * zc_name name of filesystem 2749185029Spjd * zc_value name of property to inherit 2750219089Spjd * zc_cookie revert to received value if TRUE 2751185029Spjd * 2752185029Spjd * outputs: none 2753185029Spjd */ 2754168404Spjdstatic int 2755185029Spjdzfs_ioc_inherit_prop(zfs_cmd_t *zc) 2756185029Spjd{ 2757219089Spjd const char *propname = zc->zc_value; 2758219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2759219089Spjd boolean_t received = zc->zc_cookie; 2760219089Spjd zprop_source_t source = (received 2761219089Spjd ? ZPROP_SRC_NONE /* revert to received value, if any */ 2762219089Spjd : ZPROP_SRC_INHERITED); /* explicitly inherit */ 2763219089Spjd 2764219089Spjd if (received) { 2765219089Spjd nvlist_t *dummy; 2766219089Spjd nvpair_t *pair; 2767219089Spjd zprop_type_t type; 2768219089Spjd int err; 2769219089Spjd 2770219089Spjd /* 2771219089Spjd * zfs_prop_set_special() expects properties in the form of an 2772219089Spjd * nvpair with type info. 2773219089Spjd */ 2774219089Spjd if (prop == ZPROP_INVAL) { 2775219089Spjd if (!zfs_prop_user(propname)) 2776249195Smm return (SET_ERROR(EINVAL)); 2777219089Spjd 2778219089Spjd type = PROP_TYPE_STRING; 2779219089Spjd } else if (prop == ZFS_PROP_VOLSIZE || 2780219089Spjd prop == ZFS_PROP_VERSION) { 2781249195Smm return (SET_ERROR(EINVAL)); 2782219089Spjd } else { 2783219089Spjd type = zfs_prop_get_type(prop); 2784219089Spjd } 2785219089Spjd 2786219089Spjd VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2787219089Spjd 2788219089Spjd switch (type) { 2789219089Spjd case PROP_TYPE_STRING: 2790219089Spjd VERIFY(0 == nvlist_add_string(dummy, propname, "")); 2791219089Spjd break; 2792219089Spjd case PROP_TYPE_NUMBER: 2793219089Spjd case PROP_TYPE_INDEX: 2794219089Spjd VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); 2795219089Spjd break; 2796219089Spjd default: 2797219089Spjd nvlist_free(dummy); 2798249195Smm return (SET_ERROR(EINVAL)); 2799219089Spjd } 2800219089Spjd 2801219089Spjd pair = nvlist_next_nvpair(dummy, NULL); 2802219089Spjd err = zfs_prop_set_special(zc->zc_name, source, pair); 2803219089Spjd nvlist_free(dummy); 2804219089Spjd if (err != -1) 2805219089Spjd return (err); /* special property already handled */ 2806219089Spjd } else { 2807219089Spjd /* 2808219089Spjd * Only check this in the non-received case. We want to allow 2809219089Spjd * 'inherit -S' to revert non-inheritable properties like quota 2810219089Spjd * and reservation to the received or default values even though 2811219089Spjd * they are not considered inheritable. 2812219089Spjd */ 2813219089Spjd if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) 2814249195Smm return (SET_ERROR(EINVAL)); 2815219089Spjd } 2816219089Spjd 2817248571Smm /* property name has been validated by zfs_secpolicy_inherit_prop() */ 2818248571Smm return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); 2819185029Spjd} 2820185029Spjd 2821185029Spjdstatic int 2822169055Spjdzfs_ioc_pool_set_props(zfs_cmd_t *zc) 2823168404Spjd{ 2824185029Spjd nvlist_t *props; 2825168404Spjd spa_t *spa; 2826185029Spjd int error; 2827219089Spjd nvpair_t *pair; 2828168404Spjd 2829219089Spjd if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2830219089Spjd zc->zc_iflags, &props)) 2831168404Spjd return (error); 2832168404Spjd 2833209962Smm /* 2834209962Smm * If the only property is the configfile, then just do a spa_lookup() 2835209962Smm * to handle the faulted case. 2836209962Smm */ 2837219089Spjd pair = nvlist_next_nvpair(props, NULL); 2838219089Spjd if (pair != NULL && strcmp(nvpair_name(pair), 2839209962Smm zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && 2840219089Spjd nvlist_next_nvpair(props, pair) == NULL) { 2841209962Smm mutex_enter(&spa_namespace_lock); 2842209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) { 2843209962Smm spa_configfile_set(spa, props, B_FALSE); 2844209962Smm spa_config_sync(spa, B_FALSE, B_TRUE); 2845209962Smm } 2846209962Smm mutex_exit(&spa_namespace_lock); 2847219089Spjd if (spa != NULL) { 2848219089Spjd nvlist_free(props); 2849209962Smm return (0); 2850219089Spjd } 2851209962Smm } 2852209962Smm 2853168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2854185029Spjd nvlist_free(props); 2855168404Spjd return (error); 2856168404Spjd } 2857168404Spjd 2858185029Spjd error = spa_prop_set(spa, props); 2859168404Spjd 2860185029Spjd nvlist_free(props); 2861168404Spjd spa_close(spa, FTAG); 2862168404Spjd 2863168404Spjd return (error); 2864168404Spjd} 2865168404Spjd 2866168404Spjdstatic int 2867169055Spjdzfs_ioc_pool_get_props(zfs_cmd_t *zc) 2868168404Spjd{ 2869168404Spjd spa_t *spa; 2870168404Spjd int error; 2871168404Spjd nvlist_t *nvp = NULL; 2872168404Spjd 2873209962Smm if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2874209962Smm /* 2875209962Smm * If the pool is faulted, there may be properties we can still 2876209962Smm * get (such as altroot and cachefile), so attempt to get them 2877209962Smm * anyway. 2878209962Smm */ 2879209962Smm mutex_enter(&spa_namespace_lock); 2880209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) 2881209962Smm error = spa_prop_get(spa, &nvp); 2882209962Smm mutex_exit(&spa_namespace_lock); 2883209962Smm } else { 2884209962Smm error = spa_prop_get(spa, &nvp); 2885209962Smm spa_close(spa, FTAG); 2886209962Smm } 2887168404Spjd 2888168404Spjd if (error == 0 && zc->zc_nvlist_dst != 0) 2889168404Spjd error = put_nvlist(zc, nvp); 2890168404Spjd else 2891249195Smm error = SET_ERROR(EFAULT); 2892168404Spjd 2893209962Smm nvlist_free(nvp); 2894168404Spjd return (error); 2895168404Spjd} 2896168404Spjd 2897185029Spjd/* 2898185029Spjd * inputs: 2899185029Spjd * zc_name name of filesystem 2900185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 2901185029Spjd * zc_perm_action allow/unallow flag 2902185029Spjd * 2903185029Spjd * outputs: none 2904185029Spjd */ 2905185029Spjdstatic int 2906185029Spjdzfs_ioc_set_fsacl(zfs_cmd_t *zc) 2907185029Spjd{ 2908185029Spjd int error; 2909185029Spjd nvlist_t *fsaclnv = NULL; 2910185029Spjd 2911185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2912219089Spjd zc->zc_iflags, &fsaclnv)) != 0) 2913185029Spjd return (error); 2914185029Spjd 2915185029Spjd /* 2916185029Spjd * Verify nvlist is constructed correctly 2917185029Spjd */ 2918185029Spjd if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { 2919185029Spjd nvlist_free(fsaclnv); 2920249195Smm return (SET_ERROR(EINVAL)); 2921185029Spjd } 2922185029Spjd 2923185029Spjd /* 2924185029Spjd * If we don't have PRIV_SYS_MOUNT, then validate 2925185029Spjd * that user is allowed to hand out each permission in 2926185029Spjd * the nvlist(s) 2927185029Spjd */ 2928185029Spjd 2929185029Spjd error = secpolicy_zfs(CRED()); 2930248571Smm if (error != 0) { 2931185029Spjd if (zc->zc_perm_action == B_FALSE) { 2932185029Spjd error = dsl_deleg_can_allow(zc->zc_name, 2933185029Spjd fsaclnv, CRED()); 2934185029Spjd } else { 2935185029Spjd error = dsl_deleg_can_unallow(zc->zc_name, 2936185029Spjd fsaclnv, CRED()); 2937185029Spjd } 2938185029Spjd } 2939185029Spjd 2940185029Spjd if (error == 0) 2941185029Spjd error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); 2942185029Spjd 2943185029Spjd nvlist_free(fsaclnv); 2944185029Spjd return (error); 2945185029Spjd} 2946185029Spjd 2947185029Spjd/* 2948185029Spjd * inputs: 2949185029Spjd * zc_name name of filesystem 2950185029Spjd * 2951185029Spjd * outputs: 2952185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 2953185029Spjd */ 2954185029Spjdstatic int 2955185029Spjdzfs_ioc_get_fsacl(zfs_cmd_t *zc) 2956185029Spjd{ 2957185029Spjd nvlist_t *nvp; 2958185029Spjd int error; 2959185029Spjd 2960185029Spjd if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { 2961185029Spjd error = put_nvlist(zc, nvp); 2962185029Spjd nvlist_free(nvp); 2963185029Spjd } 2964185029Spjd 2965185029Spjd return (error); 2966185029Spjd} 2967185029Spjd 2968185029Spjd/* 2969168404Spjd * Search the vfs list for a specified resource. Returns a pointer to it 2970168404Spjd * or NULL if no suitable entry is found. The caller of this routine 2971168404Spjd * is responsible for releasing the returned vfs pointer. 2972168404Spjd */ 2973168404Spjdstatic vfs_t * 2974168404Spjdzfs_get_vfs(const char *resource) 2975168404Spjd{ 2976168404Spjd vfs_t *vfsp; 2977168404Spjd 2978168404Spjd mtx_lock(&mountlist_mtx); 2979168404Spjd TAILQ_FOREACH(vfsp, &mountlist, mnt_list) { 2980185029Spjd if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { 2981168404Spjd VFS_HOLD(vfsp); 2982168404Spjd break; 2983168404Spjd } 2984168404Spjd } 2985168404Spjd mtx_unlock(&mountlist_mtx); 2986168404Spjd return (vfsp); 2987168404Spjd} 2988168404Spjd 2989185029Spjd/* ARGSUSED */ 2990168404Spjdstatic void 2991185029Spjdzfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) 2992168404Spjd{ 2993185029Spjd zfs_creat_t *zct = arg; 2994168404Spjd 2995185029Spjd zfs_create_fs(os, cr, zct->zct_zplprops, tx); 2996168404Spjd} 2997168404Spjd 2998185029Spjd#define ZFS_PROP_UNDEFINED ((uint64_t)-1) 2999185029Spjd 3000185029Spjd/* 3001185029Spjd * inputs: 3002251631Sdelphij * os parent objset pointer (NULL if root fs) 3003251631Sdelphij * fuids_ok fuids allowed in this version of the spa? 3004251631Sdelphij * sa_ok SAs allowed in this version of the spa? 3005185029Spjd * createprops list of properties requested by creator 3006185029Spjd * 3007185029Spjd * outputs: 3008185029Spjd * zplprops values for the zplprops we attach to the master node object 3009185029Spjd * is_ci true if requested file system will be purely case-insensitive 3010185029Spjd * 3011185029Spjd * Determine the settings for utf8only, normalization and 3012185029Spjd * casesensitivity. Specific values may have been requested by the 3013185029Spjd * creator and/or we can inherit values from the parent dataset. If 3014185029Spjd * the file system is of too early a vintage, a creator can not 3015185029Spjd * request settings for these properties, even if the requested 3016185029Spjd * setting is the default value. We don't actually want to create dsl 3017185029Spjd * properties for these, so remove them from the source nvlist after 3018185029Spjd * processing. 3019185029Spjd */ 3020168404Spjdstatic int 3021209962Smmzfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, 3022219089Spjd boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, 3023219089Spjd nvlist_t *zplprops, boolean_t *is_ci) 3024185029Spjd{ 3025185029Spjd uint64_t sense = ZFS_PROP_UNDEFINED; 3026185029Spjd uint64_t norm = ZFS_PROP_UNDEFINED; 3027185029Spjd uint64_t u8 = ZFS_PROP_UNDEFINED; 3028185029Spjd 3029185029Spjd ASSERT(zplprops != NULL); 3030185029Spjd 3031185029Spjd /* 3032185029Spjd * Pull out creator prop choices, if any. 3033185029Spjd */ 3034185029Spjd if (createprops) { 3035185029Spjd (void) nvlist_lookup_uint64(createprops, 3036185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); 3037185029Spjd (void) nvlist_lookup_uint64(createprops, 3038185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); 3039185029Spjd (void) nvlist_remove_all(createprops, 3040185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE)); 3041185029Spjd (void) nvlist_lookup_uint64(createprops, 3042185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); 3043185029Spjd (void) nvlist_remove_all(createprops, 3044185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 3045185029Spjd (void) nvlist_lookup_uint64(createprops, 3046185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), &sense); 3047185029Spjd (void) nvlist_remove_all(createprops, 3048185029Spjd zfs_prop_to_name(ZFS_PROP_CASE)); 3049185029Spjd } 3050185029Spjd 3051185029Spjd /* 3052185029Spjd * If the zpl version requested is whacky or the file system 3053185029Spjd * or pool is version is too "young" to support normalization 3054185029Spjd * and the creator tried to set a value for one of the props, 3055185029Spjd * error out. 3056185029Spjd */ 3057185029Spjd if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || 3058185029Spjd (zplver >= ZPL_VERSION_FUID && !fuids_ok) || 3059219089Spjd (zplver >= ZPL_VERSION_SA && !sa_ok) || 3060185029Spjd (zplver < ZPL_VERSION_NORMALIZATION && 3061185029Spjd (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || 3062185029Spjd sense != ZFS_PROP_UNDEFINED))) 3063249195Smm return (SET_ERROR(ENOTSUP)); 3064185029Spjd 3065185029Spjd /* 3066185029Spjd * Put the version in the zplprops 3067185029Spjd */ 3068185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3069185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); 3070185029Spjd 3071185029Spjd if (norm == ZFS_PROP_UNDEFINED) 3072185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); 3073185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3074185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); 3075185029Spjd 3076185029Spjd /* 3077185029Spjd * If we're normalizing, names must always be valid UTF-8 strings. 3078185029Spjd */ 3079185029Spjd if (norm) 3080185029Spjd u8 = 1; 3081185029Spjd if (u8 == ZFS_PROP_UNDEFINED) 3082185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); 3083185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3084185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); 3085185029Spjd 3086185029Spjd if (sense == ZFS_PROP_UNDEFINED) 3087185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); 3088185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3089185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); 3090185029Spjd 3091185029Spjd if (is_ci) 3092185029Spjd *is_ci = (sense == ZFS_CASE_INSENSITIVE); 3093185029Spjd 3094185029Spjd return (0); 3095185029Spjd} 3096185029Spjd 3097185029Spjdstatic int 3098185029Spjdzfs_fill_zplprops(const char *dataset, nvlist_t *createprops, 3099185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3100185029Spjd{ 3101219089Spjd boolean_t fuids_ok, sa_ok; 3102185029Spjd uint64_t zplver = ZPL_VERSION; 3103185029Spjd objset_t *os = NULL; 3104185029Spjd char parentname[MAXNAMELEN]; 3105185029Spjd char *cp; 3106219089Spjd spa_t *spa; 3107219089Spjd uint64_t spa_vers; 3108185029Spjd int error; 3109185029Spjd 3110185029Spjd (void) strlcpy(parentname, dataset, sizeof (parentname)); 3111185029Spjd cp = strrchr(parentname, '/'); 3112185029Spjd ASSERT(cp != NULL); 3113185029Spjd cp[0] = '\0'; 3114185029Spjd 3115219089Spjd if ((error = spa_open(dataset, &spa, FTAG)) != 0) 3116219089Spjd return (error); 3117185029Spjd 3118219089Spjd spa_vers = spa_version(spa); 3119219089Spjd spa_close(spa, FTAG); 3120219089Spjd 3121219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3122219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3123219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3124219089Spjd 3125185029Spjd /* 3126185029Spjd * Open parent object set so we can inherit zplprop values. 3127185029Spjd */ 3128219089Spjd if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) 3129185029Spjd return (error); 3130185029Spjd 3131219089Spjd error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, 3132185029Spjd zplprops, is_ci); 3133219089Spjd dmu_objset_rele(os, FTAG); 3134185029Spjd return (error); 3135185029Spjd} 3136185029Spjd 3137185029Spjdstatic int 3138185029Spjdzfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, 3139185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3140185029Spjd{ 3141219089Spjd boolean_t fuids_ok; 3142219089Spjd boolean_t sa_ok; 3143185029Spjd uint64_t zplver = ZPL_VERSION; 3144185029Spjd int error; 3145185029Spjd 3146219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3147219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3148219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3149185029Spjd 3150219089Spjd error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, 3151219089Spjd createprops, zplprops, is_ci); 3152185029Spjd return (error); 3153185029Spjd} 3154185029Spjd 3155185029Spjd/* 3156248571Smm * innvl: { 3157248571Smm * "type" -> dmu_objset_type_t (int32) 3158248571Smm * (optional) "props" -> { prop -> value } 3159248571Smm * } 3160185029Spjd * 3161248571Smm * outnvl: propname -> error code (int32) 3162185029Spjd */ 3163185029Spjdstatic int 3164248571Smmzfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3165168404Spjd{ 3166168404Spjd int error = 0; 3167248571Smm zfs_creat_t zct = { 0 }; 3168185029Spjd nvlist_t *nvprops = NULL; 3169185029Spjd void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); 3170248571Smm int32_t type32; 3171248571Smm dmu_objset_type_t type; 3172248571Smm boolean_t is_insensitive = B_FALSE; 3173168404Spjd 3174248571Smm if (nvlist_lookup_int32(innvl, "type", &type32) != 0) 3175249195Smm return (SET_ERROR(EINVAL)); 3176248571Smm type = type32; 3177248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3178248571Smm 3179168404Spjd switch (type) { 3180168404Spjd case DMU_OST_ZFS: 3181168404Spjd cbfunc = zfs_create_cb; 3182168404Spjd break; 3183168404Spjd 3184168404Spjd case DMU_OST_ZVOL: 3185168404Spjd cbfunc = zvol_create_cb; 3186168404Spjd break; 3187168404Spjd 3188168404Spjd default: 3189168404Spjd cbfunc = NULL; 3190185029Spjd break; 3191168404Spjd } 3192248571Smm if (strchr(fsname, '@') || 3193248571Smm strchr(fsname, '%')) 3194249195Smm return (SET_ERROR(EINVAL)); 3195168404Spjd 3196185029Spjd zct.zct_props = nvprops; 3197168404Spjd 3198248571Smm if (cbfunc == NULL) 3199249195Smm return (SET_ERROR(EINVAL)); 3200168404Spjd 3201248571Smm if (type == DMU_OST_ZVOL) { 3202248571Smm uint64_t volsize, volblocksize; 3203185029Spjd 3204248571Smm if (nvprops == NULL) 3205249195Smm return (SET_ERROR(EINVAL)); 3206248571Smm if (nvlist_lookup_uint64(nvprops, 3207248571Smm zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) 3208249195Smm return (SET_ERROR(EINVAL)); 3209185029Spjd 3210248571Smm if ((error = nvlist_lookup_uint64(nvprops, 3211248571Smm zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3212248571Smm &volblocksize)) != 0 && error != ENOENT) 3213249195Smm return (SET_ERROR(EINVAL)); 3214168404Spjd 3215248571Smm if (error != 0) 3216248571Smm volblocksize = zfs_prop_default_numeric( 3217248571Smm ZFS_PROP_VOLBLOCKSIZE); 3218168404Spjd 3219248571Smm if ((error = zvol_check_volblocksize( 3220248571Smm volblocksize)) != 0 || 3221248571Smm (error = zvol_check_volsize(volsize, 3222248571Smm volblocksize)) != 0) 3223248571Smm return (error); 3224248571Smm } else if (type == DMU_OST_ZFS) { 3225248571Smm int error; 3226168404Spjd 3227248571Smm /* 3228248571Smm * We have to have normalization and 3229248571Smm * case-folding flags correct when we do the 3230248571Smm * file system creation, so go figure them out 3231248571Smm * now. 3232248571Smm */ 3233248571Smm VERIFY(nvlist_alloc(&zct.zct_zplprops, 3234248571Smm NV_UNIQUE_NAME, KM_SLEEP) == 0); 3235248571Smm error = zfs_fill_zplprops(fsname, nvprops, 3236248571Smm zct.zct_zplprops, &is_insensitive); 3237248571Smm if (error != 0) { 3238248571Smm nvlist_free(zct.zct_zplprops); 3239248571Smm return (error); 3240168404Spjd } 3241168404Spjd } 3242168404Spjd 3243248571Smm error = dmu_objset_create(fsname, type, 3244248571Smm is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); 3245248571Smm nvlist_free(zct.zct_zplprops); 3246248571Smm 3247168404Spjd /* 3248168404Spjd * It would be nice to do this atomically. 3249168404Spjd */ 3250168404Spjd if (error == 0) { 3251248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3252248571Smm nvprops, outnvl); 3253219089Spjd if (error != 0) 3254248571Smm (void) dsl_destroy_head(fsname); 3255168404Spjd } 3256219089Spjd#ifdef __FreeBSD__ 3257219089Spjd if (error == 0 && type == DMU_OST_ZVOL) 3258248571Smm zvol_create_minors(fsname); 3259219089Spjd#endif 3260168404Spjd return (error); 3261168404Spjd} 3262168404Spjd 3263185029Spjd/* 3264248571Smm * innvl: { 3265248571Smm * "origin" -> name of origin snapshot 3266248571Smm * (optional) "props" -> { prop -> value } 3267248571Smm * } 3268185029Spjd * 3269248571Smm * outnvl: propname -> error code (int32) 3270185029Spjd */ 3271185029Spjdstatic int 3272248571Smmzfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3273168404Spjd{ 3274248571Smm int error = 0; 3275185029Spjd nvlist_t *nvprops = NULL; 3276248571Smm char *origin_name; 3277185029Spjd 3278248571Smm if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) 3279249195Smm return (SET_ERROR(EINVAL)); 3280248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3281185029Spjd 3282248571Smm if (strchr(fsname, '@') || 3283248571Smm strchr(fsname, '%')) 3284249195Smm return (SET_ERROR(EINVAL)); 3285248571Smm 3286248571Smm if (dataset_namecheck(origin_name, NULL, NULL) != 0) 3287249195Smm return (SET_ERROR(EINVAL)); 3288248571Smm error = dmu_objset_clone(fsname, origin_name); 3289248571Smm if (error != 0) 3290185029Spjd return (error); 3291185029Spjd 3292248571Smm /* 3293248571Smm * It would be nice to do this atomically. 3294248571Smm */ 3295248571Smm if (error == 0) { 3296248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3297248571Smm nvprops, outnvl); 3298248571Smm if (error != 0) 3299248571Smm (void) dsl_destroy_head(fsname); 3300248571Smm } 3301248571Smm return (error); 3302248571Smm} 3303185029Spjd 3304248571Smm/* 3305248571Smm * innvl: { 3306248571Smm * "snaps" -> { snapshot1, snapshot2 } 3307248571Smm * (optional) "props" -> { prop -> value (string) } 3308248571Smm * } 3309248571Smm * 3310248571Smm * outnvl: snapshot -> error code (int32) 3311248571Smm */ 3312248571Smmstatic int 3313248571Smmzfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3314248571Smm{ 3315248571Smm nvlist_t *snaps; 3316248571Smm nvlist_t *props = NULL; 3317248571Smm int error, poollen; 3318248571Smm nvpair_t *pair; 3319248571Smm 3320248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &props); 3321248571Smm if ((error = zfs_check_userprops(poolname, props)) != 0) 3322248571Smm return (error); 3323248571Smm 3324248571Smm if (!nvlist_empty(props) && 3325248571Smm zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) 3326249195Smm return (SET_ERROR(ENOTSUP)); 3327248571Smm 3328248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3329249195Smm return (SET_ERROR(EINVAL)); 3330248571Smm poollen = strlen(poolname); 3331248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3332248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3333248571Smm const char *name = nvpair_name(pair); 3334248571Smm const char *cp = strchr(name, '@'); 3335248571Smm 3336248571Smm /* 3337248571Smm * The snap name must contain an @, and the part after it must 3338248571Smm * contain only valid characters. 3339248571Smm */ 3340248571Smm if (cp == NULL || snapshot_namecheck(cp + 1, NULL, NULL) != 0) 3341249195Smm return (SET_ERROR(EINVAL)); 3342248571Smm 3343248571Smm /* 3344248571Smm * The snap must be in the specified pool. 3345248571Smm */ 3346248571Smm if (strncmp(name, poolname, poollen) != 0 || 3347248571Smm (name[poollen] != '/' && name[poollen] != '@')) 3348249195Smm return (SET_ERROR(EXDEV)); 3349248571Smm 3350248571Smm /* This must be the only snap of this fs. */ 3351248571Smm for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair); 3352248571Smm pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { 3353248571Smm if (strncmp(name, nvpair_name(pair2), cp - name + 1) 3354248571Smm == 0) { 3355249195Smm return (SET_ERROR(EXDEV)); 3356248571Smm } 3357248571Smm } 3358185029Spjd } 3359209962Smm 3360248571Smm error = dsl_dataset_snapshot(snaps, props, outnvl); 3361185029Spjd return (error); 3362168404Spjd} 3363168404Spjd 3364248571Smm/* 3365248571Smm * innvl: "message" -> string 3366248571Smm */ 3367248571Smm/* ARGSUSED */ 3368248571Smmstatic int 3369248571Smmzfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) 3370168404Spjd{ 3371248571Smm char *message; 3372248571Smm spa_t *spa; 3373248571Smm int error; 3374248571Smm char *poolname; 3375168404Spjd 3376248571Smm /* 3377248571Smm * The poolname in the ioctl is not set, we get it from the TSD, 3378248571Smm * which was set at the end of the last successful ioctl that allows 3379248571Smm * logging. The secpolicy func already checked that it is set. 3380248571Smm * Only one log ioctl is allowed after each successful ioctl, so 3381248571Smm * we clear the TSD here. 3382248571Smm */ 3383248571Smm poolname = tsd_get(zfs_allow_log_key); 3384248571Smm (void) tsd_set(zfs_allow_log_key, NULL); 3385248571Smm error = spa_open(poolname, &spa, FTAG); 3386248571Smm strfree(poolname); 3387248571Smm if (error != 0) 3388248571Smm return (error); 3389248571Smm 3390248571Smm if (nvlist_lookup_string(innvl, "message", &message) != 0) { 3391248571Smm spa_close(spa, FTAG); 3392249195Smm return (SET_ERROR(EINVAL)); 3393168404Spjd } 3394168404Spjd 3395248571Smm if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 3396248571Smm spa_close(spa, FTAG); 3397249195Smm return (SET_ERROR(ENOTSUP)); 3398248571Smm } 3399168404Spjd 3400248571Smm error = spa_history_log(spa, message); 3401248571Smm spa_close(spa, FTAG); 3402248571Smm return (error); 3403248571Smm} 3404248571Smm 3405248571Smm/* 3406248571Smm * The dp_config_rwlock must not be held when calling this, because the 3407248571Smm * unmount may need to write out data. 3408248571Smm * 3409248571Smm * This function is best-effort. Callers must deal gracefully if it 3410248571Smm * remains mounted (or is remounted after this call). 3411251633Sdelphij * 3412251633Sdelphij * Returns 0 if the argument is not a snapshot, or it is not currently a 3413251633Sdelphij * filesystem, or we were able to unmount it. Returns error code otherwise. 3414248571Smm */ 3415251633Sdelphijint 3416248571Smmzfs_unmount_snap(const char *snapname) 3417248571Smm{ 3418248571Smm vfs_t *vfsp; 3419248571Smm zfsvfs_t *zfsvfs; 3420251633Sdelphij int err; 3421248571Smm 3422248571Smm if (strchr(snapname, '@') == NULL) 3423251633Sdelphij return (0); 3424248571Smm 3425248571Smm vfsp = zfs_get_vfs(snapname); 3426248571Smm if (vfsp == NULL) 3427251633Sdelphij return (0); 3428248571Smm 3429248571Smm zfsvfs = vfsp->vfs_data; 3430248571Smm ASSERT(!dsl_pool_config_held(dmu_objset_pool(zfsvfs->z_os))); 3431248571Smm 3432251633Sdelphij err = vn_vfswlock(vfsp->vfs_vnodecovered); 3433248571Smm VFS_RELE(vfsp); 3434251633Sdelphij if (err != 0) 3435251633Sdelphij return (SET_ERROR(err)); 3436248571Smm 3437248571Smm /* 3438248571Smm * Always force the unmount for snapshots. 3439248571Smm */ 3440248571Smm 3441248571Smm#ifdef illumos 3442248571Smm (void) dounmount(vfsp, MS_FORCE, kcred); 3443248571Smm#else 3444248571Smm mtx_lock(&Giant); /* dounmount() */ 3445251633Sdelphij (void) dounmount(vfsp, MS_FORCE, curthread); 3446248571Smm mtx_unlock(&Giant); /* dounmount() */ 3447248571Smm#endif 3448251633Sdelphij return (0); 3449248571Smm} 3450248571Smm 3451248571Smm/* ARGSUSED */ 3452248571Smmstatic int 3453248571Smmzfs_unmount_snap_cb(const char *snapname, void *arg) 3454248571Smm{ 3455251633Sdelphij return (zfs_unmount_snap(snapname)); 3456168404Spjd} 3457168404Spjd 3458185029Spjd/* 3459248571Smm * When a clone is destroyed, its origin may also need to be destroyed, 3460248571Smm * in which case it must be unmounted. This routine will do that unmount 3461248571Smm * if necessary. 3462248571Smm */ 3463248571Smmvoid 3464248571Smmzfs_destroy_unmount_origin(const char *fsname) 3465248571Smm{ 3466248571Smm int error; 3467248571Smm objset_t *os; 3468248571Smm dsl_dataset_t *ds; 3469248571Smm 3470248571Smm error = dmu_objset_hold(fsname, FTAG, &os); 3471248571Smm if (error != 0) 3472248571Smm return; 3473248571Smm ds = dmu_objset_ds(os); 3474248571Smm if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { 3475248571Smm char originname[MAXNAMELEN]; 3476248571Smm dsl_dataset_name(ds->ds_prev, originname); 3477248571Smm dmu_objset_rele(os, FTAG); 3478251633Sdelphij (void) zfs_unmount_snap(originname); 3479248571Smm } else { 3480248571Smm dmu_objset_rele(os, FTAG); 3481248571Smm } 3482248571Smm} 3483248571Smm 3484248571Smm/* 3485248571Smm * innvl: { 3486248571Smm * "snaps" -> { snapshot1, snapshot2 } 3487248571Smm * (optional boolean) "defer" 3488248571Smm * } 3489185029Spjd * 3490248571Smm * outnvl: snapshot -> error code (int32) 3491248571Smm * 3492185029Spjd */ 3493168404Spjdstatic int 3494248571Smmzfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3495168404Spjd{ 3496251633Sdelphij int error, poollen; 3497248571Smm nvlist_t *snaps; 3498228103Smm nvpair_t *pair; 3499248571Smm boolean_t defer; 3500168404Spjd 3501248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3502249195Smm return (SET_ERROR(EINVAL)); 3503248571Smm defer = nvlist_exists(innvl, "defer"); 3504228103Smm 3505248571Smm poollen = strlen(poolname); 3506248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3507248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3508228103Smm const char *name = nvpair_name(pair); 3509248571Smm 3510228103Smm /* 3511248571Smm * The snap must be in the specified pool. 3512228103Smm */ 3513248571Smm if (strncmp(name, poolname, poollen) != 0 || 3514248571Smm (name[poollen] != '/' && name[poollen] != '@')) 3515249195Smm return (SET_ERROR(EXDEV)); 3516228103Smm 3517251633Sdelphij error = zfs_unmount_snap(name); 3518251633Sdelphij if (error != 0) 3519251633Sdelphij return (error); 3520242862Savg (void) zvol_remove_minor(name); 3521228103Smm } 3522228103Smm 3523248571Smm return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); 3524168404Spjd} 3525168404Spjd 3526185029Spjd/* 3527185029Spjd * inputs: 3528185029Spjd * zc_name name of dataset to destroy 3529185029Spjd * zc_objset_type type of objset 3530219089Spjd * zc_defer_destroy mark for deferred destroy 3531185029Spjd * 3532185029Spjd * outputs: none 3533185029Spjd */ 3534168404Spjdstatic int 3535168404Spjdzfs_ioc_destroy(zfs_cmd_t *zc) 3536168404Spjd{ 3537219089Spjd int err; 3538168404Spjd 3539251633Sdelphij if (zc->zc_objset_type == DMU_OST_ZFS) { 3540251633Sdelphij err = zfs_unmount_snap(zc->zc_name); 3541251633Sdelphij if (err != 0) 3542251633Sdelphij return (err); 3543251633Sdelphij } 3544251633Sdelphij 3545248571Smm if (strchr(zc->zc_name, '@')) 3546248571Smm err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); 3547248571Smm else 3548248571Smm err = dsl_destroy_head(zc->zc_name); 3549219089Spjd if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) 3550219089Spjd (void) zvol_remove_minor(zc->zc_name); 3551219089Spjd return (err); 3552168404Spjd} 3553168404Spjd 3554185029Spjd/* 3555254587Sdelphij * fsname is name of dataset to rollback (to most recent snapshot) 3556185029Spjd * 3557254587Sdelphij * innvl is not used. 3558254587Sdelphij * 3559254587Sdelphij * outnvl: "target" -> name of most recent snapshot 3560254587Sdelphij * } 3561185029Spjd */ 3562254587Sdelphij/* ARGSUSED */ 3563168404Spjdstatic int 3564254587Sdelphijzfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) 3565168404Spjd{ 3566248571Smm zfsvfs_t *zfsvfs; 3567185029Spjd int error; 3568185029Spjd 3569254587Sdelphij if (getzfsvfs(fsname, &zfsvfs) == 0) { 3570219089Spjd error = zfs_suspend_fs(zfsvfs); 3571185029Spjd if (error == 0) { 3572185029Spjd int resume_err; 3573185029Spjd 3574254587Sdelphij error = dsl_dataset_rollback(fsname, zfsvfs, outnvl); 3575254587Sdelphij resume_err = zfs_resume_fs(zfsvfs, fsname); 3576185029Spjd error = error ? error : resume_err; 3577185029Spjd } 3578185029Spjd VFS_RELE(zfsvfs->z_vfs); 3579185029Spjd } else { 3580254587Sdelphij error = dsl_dataset_rollback(fsname, NULL, outnvl); 3581185029Spjd } 3582248571Smm return (error); 3583248571Smm} 3584185029Spjd 3585248571Smmstatic int 3586248571Smmrecursive_unmount(const char *fsname, void *arg) 3587248571Smm{ 3588248571Smm const char *snapname = arg; 3589248571Smm char fullname[MAXNAMELEN]; 3590219089Spjd 3591248571Smm (void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname); 3592251633Sdelphij return (zfs_unmount_snap(fullname)); 3593168404Spjd} 3594168404Spjd 3595185029Spjd/* 3596185029Spjd * inputs: 3597185029Spjd * zc_name old name of dataset 3598185029Spjd * zc_value new name of dataset 3599185029Spjd * zc_cookie recursive flag (only valid for snapshots) 3600185029Spjd * 3601185029Spjd * outputs: none 3602185029Spjd */ 3603168404Spjdstatic int 3604168404Spjdzfs_ioc_rename(zfs_cmd_t *zc) 3605168404Spjd{ 3606248571Smm boolean_t recursive = zc->zc_cookie & 1; 3607248571Smm#ifdef __FreeBSD__ 3608248571Smm boolean_t allow_mounted = zc->zc_cookie & 2; 3609248571Smm#endif 3610248571Smm char *at; 3611168676Spjd 3612168404Spjd zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 3613185029Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 3614185029Spjd strchr(zc->zc_value, '%')) 3615249195Smm return (SET_ERROR(EINVAL)); 3616168404Spjd 3617248571Smm at = strchr(zc->zc_name, '@'); 3618248571Smm if (at != NULL) { 3619248571Smm /* snaps must be in same fs */ 3620253926Ssmh int error; 3621253926Ssmh 3622248571Smm if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) 3623249195Smm return (SET_ERROR(EXDEV)); 3624248571Smm *at = '\0'; 3625248571Smm#ifdef illumos 3626248571Smm if (zc->zc_objset_type == DMU_OST_ZFS) { 3627248571Smm#else 3628248571Smm if (zc->zc_objset_type == DMU_OST_ZFS && allow_mounted) { 3629248571Smm#endif 3630253926Ssmh error = dmu_objset_find(zc->zc_name, 3631248571Smm recursive_unmount, at + 1, 3632248571Smm recursive ? DS_FIND_CHILDREN : 0); 3633253926Ssmh if (error != 0) { 3634253926Ssmh *at = '@'; 3635248571Smm return (error); 3636253926Ssmh } 3637248571Smm } 3638253926Ssmh error = dsl_dataset_rename_snapshot(zc->zc_name, 3639253926Ssmh at + 1, strchr(zc->zc_value, '@') + 1, recursive); 3640253926Ssmh *at = '@'; 3641253926Ssmh 3642253926Ssmh return (error); 3643248571Smm } else { 3644248571Smm#ifdef illumos 3645248571Smm if (zc->zc_objset_type == DMU_OST_ZVOL) 3646248571Smm (void) zvol_remove_minor(zc->zc_name); 3647248571Smm#endif 3648248571Smm return (dsl_dir_rename(zc->zc_name, zc->zc_value)); 3649168404Spjd } 3650168404Spjd} 3651168404Spjd 3652219089Spjdstatic int 3653219089Spjdzfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) 3654185029Spjd{ 3655219089Spjd const char *propname = nvpair_name(pair); 3656219089Spjd boolean_t issnap = (strchr(dsname, '@') != NULL); 3657219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 3658219089Spjd uint64_t intval; 3659219089Spjd int err; 3660219089Spjd 3661219089Spjd if (prop == ZPROP_INVAL) { 3662219089Spjd if (zfs_prop_user(propname)) { 3663219089Spjd if (err = zfs_secpolicy_write_perms(dsname, 3664219089Spjd ZFS_DELEG_PERM_USERPROP, cr)) 3665219089Spjd return (err); 3666219089Spjd return (0); 3667219089Spjd } 3668219089Spjd 3669219089Spjd if (!issnap && zfs_prop_userquota(propname)) { 3670219089Spjd const char *perm = NULL; 3671219089Spjd const char *uq_prefix = 3672219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; 3673219089Spjd const char *gq_prefix = 3674219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; 3675219089Spjd 3676219089Spjd if (strncmp(propname, uq_prefix, 3677219089Spjd strlen(uq_prefix)) == 0) { 3678219089Spjd perm = ZFS_DELEG_PERM_USERQUOTA; 3679219089Spjd } else if (strncmp(propname, gq_prefix, 3680219089Spjd strlen(gq_prefix)) == 0) { 3681219089Spjd perm = ZFS_DELEG_PERM_GROUPQUOTA; 3682219089Spjd } else { 3683219089Spjd /* USERUSED and GROUPUSED are read-only */ 3684249195Smm return (SET_ERROR(EINVAL)); 3685219089Spjd } 3686219089Spjd 3687219089Spjd if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) 3688219089Spjd return (err); 3689219089Spjd return (0); 3690219089Spjd } 3691219089Spjd 3692249195Smm return (SET_ERROR(EINVAL)); 3693219089Spjd } 3694219089Spjd 3695219089Spjd if (issnap) 3696249195Smm return (SET_ERROR(EINVAL)); 3697219089Spjd 3698219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 3699219089Spjd /* 3700219089Spjd * dsl_prop_get_all_impl() returns properties in this 3701219089Spjd * format. 3702219089Spjd */ 3703219089Spjd nvlist_t *attrs; 3704219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 3705219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3706219089Spjd &pair) == 0); 3707219089Spjd } 3708219089Spjd 3709219089Spjd /* 3710219089Spjd * Check that this value is valid for this pool version 3711219089Spjd */ 3712219089Spjd switch (prop) { 3713219089Spjd case ZFS_PROP_COMPRESSION: 3714219089Spjd /* 3715219089Spjd * If the user specified gzip compression, make sure 3716219089Spjd * the SPA supports it. We ignore any errors here since 3717219089Spjd * we'll catch them later. 3718219089Spjd */ 3719219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 3720219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 3721219089Spjd if (intval >= ZIO_COMPRESS_GZIP_1 && 3722219089Spjd intval <= ZIO_COMPRESS_GZIP_9 && 3723219089Spjd zfs_earlier_version(dsname, 3724219089Spjd SPA_VERSION_GZIP_COMPRESSION)) { 3725249195Smm return (SET_ERROR(ENOTSUP)); 3726219089Spjd } 3727219089Spjd 3728219089Spjd if (intval == ZIO_COMPRESS_ZLE && 3729219089Spjd zfs_earlier_version(dsname, 3730219089Spjd SPA_VERSION_ZLE_COMPRESSION)) 3731249195Smm return (SET_ERROR(ENOTSUP)); 3732219089Spjd 3733246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 3734246586Sdelphij zfeature_info_t *feature = 3735246586Sdelphij &spa_feature_table[ 3736246586Sdelphij SPA_FEATURE_LZ4_COMPRESS]; 3737246586Sdelphij spa_t *spa; 3738246586Sdelphij 3739246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 3740246586Sdelphij return (err); 3741246586Sdelphij 3742246586Sdelphij if (!spa_feature_is_enabled(spa, feature)) { 3743246586Sdelphij spa_close(spa, FTAG); 3744249195Smm return (SET_ERROR(ENOTSUP)); 3745246586Sdelphij } 3746246586Sdelphij spa_close(spa, FTAG); 3747246586Sdelphij } 3748246586Sdelphij 3749219089Spjd /* 3750219089Spjd * If this is a bootable dataset then 3751219089Spjd * verify that the compression algorithm 3752219089Spjd * is supported for booting. We must return 3753219089Spjd * something other than ENOTSUP since it 3754219089Spjd * implies a downrev pool version. 3755219089Spjd */ 3756219089Spjd if (zfs_is_bootfs(dsname) && 3757219089Spjd !BOOTFS_COMPRESS_VALID(intval)) { 3758249195Smm return (SET_ERROR(ERANGE)); 3759219089Spjd } 3760219089Spjd } 3761219089Spjd break; 3762219089Spjd 3763219089Spjd case ZFS_PROP_COPIES: 3764219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) 3765249195Smm return (SET_ERROR(ENOTSUP)); 3766219089Spjd break; 3767219089Spjd 3768219089Spjd case ZFS_PROP_DEDUP: 3769219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) 3770249195Smm return (SET_ERROR(ENOTSUP)); 3771219089Spjd break; 3772219089Spjd 3773219089Spjd case ZFS_PROP_SHARESMB: 3774219089Spjd if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) 3775249195Smm return (SET_ERROR(ENOTSUP)); 3776219089Spjd break; 3777219089Spjd 3778219089Spjd case ZFS_PROP_ACLINHERIT: 3779219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 3780219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 3781219089Spjd if (intval == ZFS_ACL_PASSTHROUGH_X && 3782219089Spjd zfs_earlier_version(dsname, 3783219089Spjd SPA_VERSION_PASSTHROUGH_X)) 3784249195Smm return (SET_ERROR(ENOTSUP)); 3785219089Spjd } 3786219089Spjd break; 3787219089Spjd } 3788219089Spjd 3789219089Spjd return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); 3790219089Spjd} 3791219089Spjd 3792219089Spjd/* 3793246586Sdelphij * Checks for a race condition to make sure we don't increment a feature flag 3794246586Sdelphij * multiple times. 3795246586Sdelphij */ 3796246586Sdelphijstatic int 3797248571Smmzfs_prop_activate_feature_check(void *arg, dmu_tx_t *tx) 3798246586Sdelphij{ 3799248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 3800248571Smm zfeature_info_t *feature = arg; 3801246586Sdelphij 3802246586Sdelphij if (!spa_feature_is_active(spa, feature)) 3803246586Sdelphij return (0); 3804246586Sdelphij else 3805249195Smm return (SET_ERROR(EBUSY)); 3806246586Sdelphij} 3807246586Sdelphij 3808246586Sdelphij/* 3809246586Sdelphij * The callback invoked on feature activation in the sync task caused by 3810246586Sdelphij * zfs_prop_activate_feature. 3811246586Sdelphij */ 3812246586Sdelphijstatic void 3813248571Smmzfs_prop_activate_feature_sync(void *arg, dmu_tx_t *tx) 3814246586Sdelphij{ 3815248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 3816248571Smm zfeature_info_t *feature = arg; 3817246586Sdelphij 3818246586Sdelphij spa_feature_incr(spa, feature, tx); 3819246586Sdelphij} 3820246586Sdelphij 3821246586Sdelphij/* 3822248571Smm * Activates a feature on a pool in response to a property setting. This 3823248571Smm * creates a new sync task which modifies the pool to reflect the feature 3824248571Smm * as being active. 3825248571Smm */ 3826248571Smmstatic int 3827248571Smmzfs_prop_activate_feature(spa_t *spa, zfeature_info_t *feature) 3828248571Smm{ 3829248571Smm int err; 3830248571Smm 3831248571Smm /* EBUSY here indicates that the feature is already active */ 3832248571Smm err = dsl_sync_task(spa_name(spa), 3833248571Smm zfs_prop_activate_feature_check, zfs_prop_activate_feature_sync, 3834248571Smm feature, 2); 3835248571Smm 3836248571Smm if (err != 0 && err != EBUSY) 3837248571Smm return (err); 3838248571Smm else 3839248571Smm return (0); 3840248571Smm} 3841248571Smm 3842248571Smm/* 3843219089Spjd * Removes properties from the given props list that fail permission checks 3844219089Spjd * needed to clear them and to restore them in case of a receive error. For each 3845219089Spjd * property, make sure we have both set and inherit permissions. 3846219089Spjd * 3847219089Spjd * Returns the first error encountered if any permission checks fail. If the 3848219089Spjd * caller provides a non-NULL errlist, it also gives the complete list of names 3849219089Spjd * of all the properties that failed a permission check along with the 3850219089Spjd * corresponding error numbers. The caller is responsible for freeing the 3851219089Spjd * returned errlist. 3852219089Spjd * 3853219089Spjd * If every property checks out successfully, zero is returned and the list 3854219089Spjd * pointed at by errlist is NULL. 3855219089Spjd */ 3856219089Spjdstatic int 3857219089Spjdzfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) 3858219089Spjd{ 3859185029Spjd zfs_cmd_t *zc; 3860219089Spjd nvpair_t *pair, *next_pair; 3861219089Spjd nvlist_t *errors; 3862219089Spjd int err, rv = 0; 3863185029Spjd 3864185029Spjd if (props == NULL) 3865219089Spjd return (0); 3866219089Spjd 3867219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 3868219089Spjd 3869185029Spjd zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); 3870185029Spjd (void) strcpy(zc->zc_name, dataset); 3871219089Spjd pair = nvlist_next_nvpair(props, NULL); 3872219089Spjd while (pair != NULL) { 3873219089Spjd next_pair = nvlist_next_nvpair(props, pair); 3874219089Spjd 3875219089Spjd (void) strcpy(zc->zc_value, nvpair_name(pair)); 3876219089Spjd if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || 3877248571Smm (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { 3878219089Spjd VERIFY(nvlist_remove_nvpair(props, pair) == 0); 3879219089Spjd VERIFY(nvlist_add_int32(errors, 3880219089Spjd zc->zc_value, err) == 0); 3881219089Spjd } 3882219089Spjd pair = next_pair; 3883185029Spjd } 3884185029Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 3885219089Spjd 3886219089Spjd if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { 3887219089Spjd nvlist_free(errors); 3888219089Spjd errors = NULL; 3889219089Spjd } else { 3890219089Spjd VERIFY(nvpair_value_int32(pair, &rv) == 0); 3891219089Spjd } 3892219089Spjd 3893219089Spjd if (errlist == NULL) 3894219089Spjd nvlist_free(errors); 3895219089Spjd else 3896219089Spjd *errlist = errors; 3897219089Spjd 3898219089Spjd return (rv); 3899185029Spjd} 3900185029Spjd 3901219089Spjdstatic boolean_t 3902219089Spjdpropval_equals(nvpair_t *p1, nvpair_t *p2) 3903219089Spjd{ 3904219089Spjd if (nvpair_type(p1) == DATA_TYPE_NVLIST) { 3905219089Spjd /* dsl_prop_get_all_impl() format */ 3906219089Spjd nvlist_t *attrs; 3907219089Spjd VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); 3908219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3909219089Spjd &p1) == 0); 3910219089Spjd } 3911219089Spjd 3912219089Spjd if (nvpair_type(p2) == DATA_TYPE_NVLIST) { 3913219089Spjd nvlist_t *attrs; 3914219089Spjd VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); 3915219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3916219089Spjd &p2) == 0); 3917219089Spjd } 3918219089Spjd 3919219089Spjd if (nvpair_type(p1) != nvpair_type(p2)) 3920219089Spjd return (B_FALSE); 3921219089Spjd 3922219089Spjd if (nvpair_type(p1) == DATA_TYPE_STRING) { 3923219089Spjd char *valstr1, *valstr2; 3924219089Spjd 3925219089Spjd VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); 3926219089Spjd VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); 3927219089Spjd return (strcmp(valstr1, valstr2) == 0); 3928219089Spjd } else { 3929219089Spjd uint64_t intval1, intval2; 3930219089Spjd 3931219089Spjd VERIFY(nvpair_value_uint64(p1, &intval1) == 0); 3932219089Spjd VERIFY(nvpair_value_uint64(p2, &intval2) == 0); 3933219089Spjd return (intval1 == intval2); 3934219089Spjd } 3935219089Spjd} 3936219089Spjd 3937185029Spjd/* 3938219089Spjd * Remove properties from props if they are not going to change (as determined 3939219089Spjd * by comparison with origprops). Remove them from origprops as well, since we 3940219089Spjd * do not need to clear or restore properties that won't change. 3941219089Spjd */ 3942219089Spjdstatic void 3943219089Spjdprops_reduce(nvlist_t *props, nvlist_t *origprops) 3944219089Spjd{ 3945219089Spjd nvpair_t *pair, *next_pair; 3946219089Spjd 3947219089Spjd if (origprops == NULL) 3948219089Spjd return; /* all props need to be received */ 3949219089Spjd 3950219089Spjd pair = nvlist_next_nvpair(props, NULL); 3951219089Spjd while (pair != NULL) { 3952219089Spjd const char *propname = nvpair_name(pair); 3953219089Spjd nvpair_t *match; 3954219089Spjd 3955219089Spjd next_pair = nvlist_next_nvpair(props, pair); 3956219089Spjd 3957219089Spjd if ((nvlist_lookup_nvpair(origprops, propname, 3958219089Spjd &match) != 0) || !propval_equals(pair, match)) 3959219089Spjd goto next; /* need to set received value */ 3960219089Spjd 3961219089Spjd /* don't clear the existing received value */ 3962219089Spjd (void) nvlist_remove_nvpair(origprops, match); 3963219089Spjd /* don't bother receiving the property */ 3964219089Spjd (void) nvlist_remove_nvpair(props, pair); 3965219089Spjdnext: 3966219089Spjd pair = next_pair; 3967219089Spjd } 3968219089Spjd} 3969219089Spjd 3970219089Spjd#ifdef DEBUG 3971219089Spjdstatic boolean_t zfs_ioc_recv_inject_err; 3972219089Spjd#endif 3973219089Spjd 3974219089Spjd/* 3975185029Spjd * inputs: 3976185029Spjd * zc_name name of containing filesystem 3977185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 3978185029Spjd * zc_value name of snapshot to create 3979185029Spjd * zc_string name of clone origin (if DRR_FLAG_CLONE) 3980185029Spjd * zc_cookie file descriptor to recv from 3981185029Spjd * zc_begin_record the BEGIN record of the stream (not byteswapped) 3982185029Spjd * zc_guid force flag 3983219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor 3984219089Spjd * zc_action_handle handle for this guid/ds mapping (or zero on first call) 3985185029Spjd * 3986185029Spjd * outputs: 3987185029Spjd * zc_cookie number of bytes read 3988219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 3989219089Spjd * zc_obj zprop_errflags_t 3990219089Spjd * zc_action_handle handle for this guid/ds mapping 3991185029Spjd */ 3992168404Spjdstatic int 3993185029Spjdzfs_ioc_recv(zfs_cmd_t *zc) 3994168404Spjd{ 3995185029Spjd file_t *fp; 3996185029Spjd dmu_recv_cookie_t drc; 3997185029Spjd boolean_t force = (boolean_t)zc->zc_guid; 3998219089Spjd int fd; 3999219089Spjd int error = 0; 4000219089Spjd int props_error = 0; 4001219089Spjd nvlist_t *errors; 4002185029Spjd offset_t off; 4003219089Spjd nvlist_t *props = NULL; /* sent properties */ 4004219089Spjd nvlist_t *origprops = NULL; /* existing properties */ 4005248571Smm char *origin = NULL; 4006185029Spjd char *tosnap; 4007185029Spjd char tofs[ZFS_MAXNAMELEN]; 4008255219Spjd cap_rights_t rights; 4009219089Spjd boolean_t first_recvd_props = B_FALSE; 4010168404Spjd 4011168404Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 4012185029Spjd strchr(zc->zc_value, '@') == NULL || 4013185029Spjd strchr(zc->zc_value, '%')) 4014249195Smm return (SET_ERROR(EINVAL)); 4015168404Spjd 4016185029Spjd (void) strcpy(tofs, zc->zc_value); 4017185029Spjd tosnap = strchr(tofs, '@'); 4018219089Spjd *tosnap++ = '\0'; 4019185029Spjd 4020185029Spjd if (zc->zc_nvlist_src != 0 && 4021185029Spjd (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 4022219089Spjd zc->zc_iflags, &props)) != 0) 4023168404Spjd return (error); 4024168404Spjd 4025185029Spjd fd = zc->zc_cookie; 4026255219Spjd fp = getf(fd, cap_rights_init(&rights, CAP_PREAD)); 4027185029Spjd if (fp == NULL) { 4028185029Spjd nvlist_free(props); 4029249195Smm return (SET_ERROR(EBADF)); 4030185029Spjd } 4031168404Spjd 4032219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 4033219089Spjd 4034248571Smm if (zc->zc_string[0]) 4035248571Smm origin = zc->zc_string; 4036248571Smm 4037248571Smm error = dmu_recv_begin(tofs, tosnap, 4038248571Smm &zc->zc_begin_record, force, origin, &drc); 4039248571Smm if (error != 0) 4040248571Smm goto out; 4041248571Smm 4042248571Smm /* 4043248571Smm * Set properties before we receive the stream so that they are applied 4044248571Smm * to the new data. Note that we must call dmu_recv_stream() if 4045248571Smm * dmu_recv_begin() succeeds. 4046248571Smm */ 4047248571Smm if (props != NULL && !drc.drc_newfs) { 4048248571Smm if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= 4049248571Smm SPA_VERSION_RECVD_PROPS && 4050248571Smm !dsl_prop_get_hasrecvd(tofs)) 4051219089Spjd first_recvd_props = B_TRUE; 4052219089Spjd 4053185029Spjd /* 4054219089Spjd * If new received properties are supplied, they are to 4055219089Spjd * completely replace the existing received properties, so stash 4056219089Spjd * away the existing ones. 4057185029Spjd */ 4058248571Smm if (dsl_prop_get_received(tofs, &origprops) == 0) { 4059219089Spjd nvlist_t *errlist = NULL; 4060219089Spjd /* 4061219089Spjd * Don't bother writing a property if its value won't 4062219089Spjd * change (and avoid the unnecessary security checks). 4063219089Spjd * 4064219089Spjd * The first receive after SPA_VERSION_RECVD_PROPS is a 4065219089Spjd * special case where we blow away all local properties 4066219089Spjd * regardless. 4067219089Spjd */ 4068219089Spjd if (!first_recvd_props) 4069219089Spjd props_reduce(props, origprops); 4070248571Smm if (zfs_check_clearable(tofs, origprops, &errlist) != 0) 4071219089Spjd (void) nvlist_merge(errors, errlist, 0); 4072219089Spjd nvlist_free(errlist); 4073248571Smm 4074248571Smm if (clear_received_props(tofs, origprops, 4075248571Smm first_recvd_props ? NULL : props) != 0) 4076248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4077248571Smm } else { 4078248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4079219089Spjd } 4080185029Spjd } 4081185029Spjd 4082248571Smm if (props != NULL) { 4083248571Smm props_error = dsl_prop_set_hasrecvd(tofs); 4084185029Spjd 4085248571Smm if (props_error == 0) { 4086248571Smm (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, 4087248571Smm props, errors); 4088219089Spjd } 4089219089Spjd } 4090219089Spjd 4091248571Smm if (zc->zc_nvlist_dst_size != 0 && 4092248571Smm (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || 4093248571Smm put_nvlist(zc, errors) != 0)) { 4094185029Spjd /* 4095219089Spjd * Caller made zc->zc_nvlist_dst less than the minimum expected 4096219089Spjd * size or supplied an invalid address. 4097185029Spjd */ 4098249195Smm props_error = SET_ERROR(EINVAL); 4099185029Spjd } 4100185029Spjd 4101185029Spjd off = fp->f_offset; 4102219089Spjd error = dmu_recv_stream(&drc, fp, &off, zc->zc_cleanup_fd, 4103219089Spjd &zc->zc_action_handle); 4104185029Spjd 4105219089Spjd if (error == 0) { 4106219089Spjd zfsvfs_t *zfsvfs = NULL; 4107185029Spjd 4108219089Spjd if (getzfsvfs(tofs, &zfsvfs) == 0) { 4109219089Spjd /* online recv */ 4110219089Spjd int end_err; 4111185029Spjd 4112219089Spjd error = zfs_suspend_fs(zfsvfs); 4113219089Spjd /* 4114219089Spjd * If the suspend fails, then the recv_end will 4115219089Spjd * likely also fail, and clean up after itself. 4116219089Spjd */ 4117253816Sdelphij end_err = dmu_recv_end(&drc, zfsvfs); 4118219089Spjd if (error == 0) 4119219089Spjd error = zfs_resume_fs(zfsvfs, tofs); 4120219089Spjd error = error ? error : end_err; 4121219089Spjd VFS_RELE(zfsvfs->z_vfs); 4122219089Spjd } else { 4123253816Sdelphij error = dmu_recv_end(&drc, NULL); 4124185029Spjd } 4125185029Spjd } 4126185029Spjd 4127185029Spjd zc->zc_cookie = off - fp->f_offset; 4128185029Spjd if (off >= 0 && off <= MAXOFFSET_T) 4129185029Spjd fp->f_offset = off; 4130185029Spjd 4131219089Spjd#ifdef DEBUG 4132219089Spjd if (zfs_ioc_recv_inject_err) { 4133219089Spjd zfs_ioc_recv_inject_err = B_FALSE; 4134219089Spjd error = 1; 4135219089Spjd } 4136219089Spjd#endif 4137243497Savg 4138243497Savg#ifdef __FreeBSD__ 4139243497Savg if (error == 0) 4140243497Savg zvol_create_minors(tofs); 4141243497Savg#endif 4142243497Savg 4143185029Spjd /* 4144185029Spjd * On error, restore the original props. 4145185029Spjd */ 4146248571Smm if (error != 0 && props != NULL && !drc.drc_newfs) { 4147248571Smm if (clear_received_props(tofs, props, NULL) != 0) { 4148248571Smm /* 4149248571Smm * We failed to clear the received properties. 4150248571Smm * Since we may have left a $recvd value on the 4151248571Smm * system, we can't clear the $hasrecvd flag. 4152248571Smm */ 4153219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4154248571Smm } else if (first_recvd_props) { 4155248571Smm dsl_prop_unset_hasrecvd(tofs); 4156219089Spjd } 4157219089Spjd 4158219089Spjd if (origprops == NULL && !drc.drc_newfs) { 4159219089Spjd /* We failed to stash the original properties. */ 4160219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4161219089Spjd } 4162219089Spjd 4163219089Spjd /* 4164219089Spjd * dsl_props_set() will not convert RECEIVED to LOCAL on or 4165219089Spjd * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL 4166219089Spjd * explictly if we're restoring local properties cleared in the 4167219089Spjd * first new-style receive. 4168219089Spjd */ 4169219089Spjd if (origprops != NULL && 4170219089Spjd zfs_set_prop_nvlist(tofs, (first_recvd_props ? 4171219089Spjd ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), 4172219089Spjd origprops, NULL) != 0) { 4173219089Spjd /* 4174219089Spjd * We stashed the original properties but failed to 4175219089Spjd * restore them. 4176219089Spjd */ 4177219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4178219089Spjd } 4179185029Spjd } 4180185029Spjdout: 4181185029Spjd nvlist_free(props); 4182185029Spjd nvlist_free(origprops); 4183219089Spjd nvlist_free(errors); 4184219089Spjd releasef(fd); 4185219089Spjd 4186219089Spjd if (error == 0) 4187219089Spjd error = props_error; 4188219089Spjd 4189168404Spjd return (error); 4190168404Spjd} 4191168404Spjd 4192185029Spjd/* 4193185029Spjd * inputs: 4194185029Spjd * zc_name name of snapshot to send 4195185029Spjd * zc_cookie file descriptor to send stream to 4196219089Spjd * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) 4197219089Spjd * zc_sendobj objsetid of snapshot to send 4198219089Spjd * zc_fromobj objsetid of incremental fromsnap (may be zero) 4199228103Smm * zc_guid if set, estimate size of stream only. zc_cookie is ignored. 4200228103Smm * output size in zc_objset_type. 4201185029Spjd * 4202185029Spjd * outputs: none 4203185029Spjd */ 4204168404Spjdstatic int 4205185029Spjdzfs_ioc_send(zfs_cmd_t *zc) 4206168404Spjd{ 4207185029Spjd int error; 4208185029Spjd offset_t off; 4209228103Smm boolean_t estimate = (zc->zc_guid != 0); 4210168404Spjd 4211248571Smm if (zc->zc_obj != 0) { 4212248571Smm dsl_pool_t *dp; 4213248571Smm dsl_dataset_t *tosnap; 4214168404Spjd 4215248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4216248571Smm if (error != 0) 4217248571Smm return (error); 4218168404Spjd 4219248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4220248571Smm if (error != 0) { 4221248571Smm dsl_pool_rele(dp, FTAG); 4222248571Smm return (error); 4223248571Smm } 4224248571Smm 4225248571Smm if (dsl_dir_is_clone(tosnap->ds_dir)) 4226248571Smm zc->zc_fromobj = tosnap->ds_dir->dd_phys->dd_origin_obj; 4227248571Smm dsl_dataset_rele(tosnap, FTAG); 4228248571Smm dsl_pool_rele(dp, FTAG); 4229219089Spjd } 4230219089Spjd 4231248571Smm if (estimate) { 4232248571Smm dsl_pool_t *dp; 4233248571Smm dsl_dataset_t *tosnap; 4234248571Smm dsl_dataset_t *fromsnap = NULL; 4235248571Smm 4236248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4237248571Smm if (error != 0) 4238168404Spjd return (error); 4239248571Smm 4240248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4241248571Smm if (error != 0) { 4242248571Smm dsl_pool_rele(dp, FTAG); 4243219089Spjd return (error); 4244219089Spjd } 4245168404Spjd 4246248571Smm if (zc->zc_fromobj != 0) { 4247248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, 4248248571Smm FTAG, &fromsnap); 4249248571Smm if (error != 0) { 4250248571Smm dsl_dataset_rele(tosnap, FTAG); 4251248571Smm dsl_pool_rele(dp, FTAG); 4252248571Smm return (error); 4253248571Smm } 4254248571Smm } 4255248571Smm 4256248571Smm error = dmu_send_estimate(tosnap, fromsnap, 4257228103Smm &zc->zc_objset_type); 4258248571Smm 4259248571Smm if (fromsnap != NULL) 4260248571Smm dsl_dataset_rele(fromsnap, FTAG); 4261248571Smm dsl_dataset_rele(tosnap, FTAG); 4262248571Smm dsl_pool_rele(dp, FTAG); 4263228103Smm } else { 4264255219Spjd file_t *fp; 4265255219Spjd cap_rights_t rights; 4266255219Spjd 4267255219Spjd fp = getf(zc->zc_cookie, 4268255219Spjd cap_rights_init(&rights, CAP_WRITE)); 4269248571Smm if (fp == NULL) 4270249195Smm return (SET_ERROR(EBADF)); 4271168404Spjd 4272228103Smm off = fp->f_offset; 4273248571Smm error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, 4274248571Smm#ifdef illumos 4275248571Smm zc->zc_fromobj, zc->zc_cookie, fp->f_vnode, &off); 4276248571Smm#else 4277248571Smm zc->zc_fromobj, zc->zc_cookie, fp, &off); 4278248571Smm#endif 4279168404Spjd 4280228103Smm if (off >= 0 && off <= MAXOFFSET_T) 4281228103Smm fp->f_offset = off; 4282228103Smm releasef(zc->zc_cookie); 4283228103Smm } 4284168404Spjd return (error); 4285168404Spjd} 4286168404Spjd 4287235222Smm/* 4288235222Smm * inputs: 4289235222Smm * zc_name name of snapshot on which to report progress 4290235222Smm * zc_cookie file descriptor of send stream 4291235222Smm * 4292235222Smm * outputs: 4293235222Smm * zc_cookie number of bytes written in send stream thus far 4294235222Smm */ 4295168404Spjdstatic int 4296235222Smmzfs_ioc_send_progress(zfs_cmd_t *zc) 4297235222Smm{ 4298248571Smm dsl_pool_t *dp; 4299235222Smm dsl_dataset_t *ds; 4300235222Smm dmu_sendarg_t *dsp = NULL; 4301235222Smm int error; 4302235222Smm 4303248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4304248571Smm if (error != 0) 4305235222Smm return (error); 4306235222Smm 4307248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); 4308248571Smm if (error != 0) { 4309248571Smm dsl_pool_rele(dp, FTAG); 4310248571Smm return (error); 4311248571Smm } 4312248571Smm 4313235222Smm mutex_enter(&ds->ds_sendstream_lock); 4314235222Smm 4315235222Smm /* 4316235222Smm * Iterate over all the send streams currently active on this dataset. 4317235222Smm * If there's one which matches the specified file descriptor _and_ the 4318235222Smm * stream was started by the current process, return the progress of 4319235222Smm * that stream. 4320235222Smm */ 4321235222Smm for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; 4322235222Smm dsp = list_next(&ds->ds_sendstreams, dsp)) { 4323235222Smm if (dsp->dsa_outfd == zc->zc_cookie && 4324235222Smm dsp->dsa_proc == curproc) 4325235222Smm break; 4326235222Smm } 4327235222Smm 4328235222Smm if (dsp != NULL) 4329235222Smm zc->zc_cookie = *(dsp->dsa_off); 4330235222Smm else 4331249195Smm error = SET_ERROR(ENOENT); 4332235222Smm 4333235222Smm mutex_exit(&ds->ds_sendstream_lock); 4334235222Smm dsl_dataset_rele(ds, FTAG); 4335248571Smm dsl_pool_rele(dp, FTAG); 4336235222Smm return (error); 4337235222Smm} 4338235222Smm 4339235222Smmstatic int 4340168404Spjdzfs_ioc_inject_fault(zfs_cmd_t *zc) 4341168404Spjd{ 4342168404Spjd int id, error; 4343168404Spjd 4344168404Spjd error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 4345168404Spjd &zc->zc_inject_record); 4346168404Spjd 4347168404Spjd if (error == 0) 4348168404Spjd zc->zc_guid = (uint64_t)id; 4349168404Spjd 4350168404Spjd return (error); 4351168404Spjd} 4352168404Spjd 4353168404Spjdstatic int 4354168404Spjdzfs_ioc_clear_fault(zfs_cmd_t *zc) 4355168404Spjd{ 4356168404Spjd return (zio_clear_fault((int)zc->zc_guid)); 4357168404Spjd} 4358168404Spjd 4359168404Spjdstatic int 4360168404Spjdzfs_ioc_inject_list_next(zfs_cmd_t *zc) 4361168404Spjd{ 4362168404Spjd int id = (int)zc->zc_guid; 4363168404Spjd int error; 4364168404Spjd 4365168404Spjd error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 4366168404Spjd &zc->zc_inject_record); 4367168404Spjd 4368168404Spjd zc->zc_guid = id; 4369168404Spjd 4370168404Spjd return (error); 4371168404Spjd} 4372168404Spjd 4373168404Spjdstatic int 4374168404Spjdzfs_ioc_error_log(zfs_cmd_t *zc) 4375168404Spjd{ 4376168404Spjd spa_t *spa; 4377168404Spjd int error; 4378168404Spjd size_t count = (size_t)zc->zc_nvlist_dst_size; 4379168404Spjd 4380168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 4381168404Spjd return (error); 4382168404Spjd 4383168404Spjd error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 4384168404Spjd &count); 4385168404Spjd if (error == 0) 4386168404Spjd zc->zc_nvlist_dst_size = count; 4387168404Spjd else 4388168404Spjd zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 4389168404Spjd 4390168404Spjd spa_close(spa, FTAG); 4391168404Spjd 4392168404Spjd return (error); 4393168404Spjd} 4394168404Spjd 4395168404Spjdstatic int 4396168404Spjdzfs_ioc_clear(zfs_cmd_t *zc) 4397168404Spjd{ 4398168404Spjd spa_t *spa; 4399168404Spjd vdev_t *vd; 4400168404Spjd int error; 4401168404Spjd 4402185029Spjd /* 4403185029Spjd * On zpool clear we also fix up missing slogs 4404185029Spjd */ 4405185029Spjd mutex_enter(&spa_namespace_lock); 4406185029Spjd spa = spa_lookup(zc->zc_name); 4407185029Spjd if (spa == NULL) { 4408185029Spjd mutex_exit(&spa_namespace_lock); 4409249195Smm return (SET_ERROR(EIO)); 4410185029Spjd } 4411219089Spjd if (spa_get_log_state(spa) == SPA_LOG_MISSING) { 4412185029Spjd /* we need to let spa_open/spa_load clear the chains */ 4413219089Spjd spa_set_log_state(spa, SPA_LOG_CLEAR); 4414185029Spjd } 4415219089Spjd spa->spa_last_open_failed = 0; 4416185029Spjd mutex_exit(&spa_namespace_lock); 4417185029Spjd 4418219089Spjd if (zc->zc_cookie & ZPOOL_NO_REWIND) { 4419219089Spjd error = spa_open(zc->zc_name, &spa, FTAG); 4420219089Spjd } else { 4421219089Spjd nvlist_t *policy; 4422219089Spjd nvlist_t *config = NULL; 4423219089Spjd 4424219089Spjd if (zc->zc_nvlist_src == 0) 4425249195Smm return (SET_ERROR(EINVAL)); 4426219089Spjd 4427219089Spjd if ((error = get_nvlist(zc->zc_nvlist_src, 4428219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { 4429219089Spjd error = spa_open_rewind(zc->zc_name, &spa, FTAG, 4430219089Spjd policy, &config); 4431219089Spjd if (config != NULL) { 4432219089Spjd int err; 4433219089Spjd 4434219089Spjd if ((err = put_nvlist(zc, config)) != 0) 4435219089Spjd error = err; 4436219089Spjd nvlist_free(config); 4437219089Spjd } 4438219089Spjd nvlist_free(policy); 4439219089Spjd } 4440219089Spjd } 4441219089Spjd 4442248571Smm if (error != 0) 4443168404Spjd return (error); 4444168404Spjd 4445219089Spjd spa_vdev_state_enter(spa, SCL_NONE); 4446168404Spjd 4447168404Spjd if (zc->zc_guid == 0) { 4448168404Spjd vd = NULL; 4449185029Spjd } else { 4450185029Spjd vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); 4451185029Spjd if (vd == NULL) { 4452185029Spjd (void) spa_vdev_state_exit(spa, NULL, ENODEV); 4453185029Spjd spa_close(spa, FTAG); 4454249195Smm return (SET_ERROR(ENODEV)); 4455185029Spjd } 4456168404Spjd } 4457168404Spjd 4458168404Spjd vdev_clear(spa, vd); 4459168404Spjd 4460185029Spjd (void) spa_vdev_state_exit(spa, NULL, 0); 4461168404Spjd 4462185029Spjd /* 4463185029Spjd * Resume any suspended I/Os. 4464185029Spjd */ 4465209962Smm if (zio_resume(spa) != 0) 4466249195Smm error = SET_ERROR(EIO); 4467185029Spjd 4468168404Spjd spa_close(spa, FTAG); 4469168404Spjd 4470209962Smm return (error); 4471168404Spjd} 4472168404Spjd 4473236155Smmstatic int 4474236155Smmzfs_ioc_pool_reopen(zfs_cmd_t *zc) 4475236155Smm{ 4476236155Smm spa_t *spa; 4477236155Smm int error; 4478236155Smm 4479236155Smm error = spa_open(zc->zc_name, &spa, FTAG); 4480248571Smm if (error != 0) 4481236155Smm return (error); 4482236155Smm 4483236155Smm spa_vdev_state_enter(spa, SCL_NONE); 4484240133Smm 4485240133Smm /* 4486240133Smm * If a resilver is already in progress then set the 4487240133Smm * spa_scrub_reopen flag to B_TRUE so that we don't restart 4488240133Smm * the scan as a side effect of the reopen. Otherwise, let 4489240133Smm * vdev_open() decided if a resilver is required. 4490240133Smm */ 4491240133Smm spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); 4492236155Smm vdev_reopen(spa->spa_root_vdev); 4493240133Smm spa->spa_scrub_reopen = B_FALSE; 4494240133Smm 4495236155Smm (void) spa_vdev_state_exit(spa, NULL, 0); 4496236155Smm spa_close(spa, FTAG); 4497236155Smm return (0); 4498236155Smm} 4499185029Spjd/* 4500185029Spjd * inputs: 4501185029Spjd * zc_name name of filesystem 4502185029Spjd * zc_value name of origin snapshot 4503185029Spjd * 4504219089Spjd * outputs: 4505219089Spjd * zc_string name of conflicting snapshot, if there is one 4506185029Spjd */ 4507168404Spjdstatic int 4508168404Spjdzfs_ioc_promote(zfs_cmd_t *zc) 4509168404Spjd{ 4510168404Spjd char *cp; 4511168404Spjd 4512168404Spjd /* 4513168404Spjd * We don't need to unmount *all* the origin fs's snapshots, but 4514168404Spjd * it's easier. 4515168404Spjd */ 4516168404Spjd cp = strchr(zc->zc_value, '@'); 4517168404Spjd if (cp) 4518168404Spjd *cp = '\0'; 4519168404Spjd (void) dmu_objset_find(zc->zc_value, 4520248571Smm zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); 4521219089Spjd return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); 4522168404Spjd} 4523168404Spjd 4524185029Spjd/* 4525209962Smm * Retrieve a single {user|group}{used|quota}@... property. 4526209962Smm * 4527209962Smm * inputs: 4528209962Smm * zc_name name of filesystem 4529209962Smm * zc_objset_type zfs_userquota_prop_t 4530209962Smm * zc_value domain name (eg. "S-1-234-567-89") 4531209962Smm * zc_guid RID/UID/GID 4532209962Smm * 4533209962Smm * outputs: 4534209962Smm * zc_cookie property value 4535209962Smm */ 4536209962Smmstatic int 4537209962Smmzfs_ioc_userspace_one(zfs_cmd_t *zc) 4538209962Smm{ 4539209962Smm zfsvfs_t *zfsvfs; 4540209962Smm int error; 4541209962Smm 4542209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 4543249195Smm return (SET_ERROR(EINVAL)); 4544209962Smm 4545219089Spjd error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 4546248571Smm if (error != 0) 4547209962Smm return (error); 4548209962Smm 4549209962Smm error = zfs_userspace_one(zfsvfs, 4550209962Smm zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); 4551209962Smm zfsvfs_rele(zfsvfs, FTAG); 4552209962Smm 4553209962Smm return (error); 4554209962Smm} 4555209962Smm 4556209962Smm/* 4557209962Smm * inputs: 4558209962Smm * zc_name name of filesystem 4559209962Smm * zc_cookie zap cursor 4560209962Smm * zc_objset_type zfs_userquota_prop_t 4561209962Smm * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) 4562209962Smm * 4563209962Smm * outputs: 4564209962Smm * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) 4565209962Smm * zc_cookie zap cursor 4566209962Smm */ 4567209962Smmstatic int 4568209962Smmzfs_ioc_userspace_many(zfs_cmd_t *zc) 4569209962Smm{ 4570209962Smm zfsvfs_t *zfsvfs; 4571219089Spjd int bufsize = zc->zc_nvlist_dst_size; 4572209962Smm 4573219089Spjd if (bufsize <= 0) 4574249195Smm return (SET_ERROR(ENOMEM)); 4575219089Spjd 4576219089Spjd int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 4577248571Smm if (error != 0) 4578209962Smm return (error); 4579209962Smm 4580209962Smm void *buf = kmem_alloc(bufsize, KM_SLEEP); 4581209962Smm 4582209962Smm error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, 4583209962Smm buf, &zc->zc_nvlist_dst_size); 4584209962Smm 4585209962Smm if (error == 0) { 4586221409Smarius error = ddi_copyout(buf, 4587209962Smm (void *)(uintptr_t)zc->zc_nvlist_dst, 4588221409Smarius zc->zc_nvlist_dst_size, zc->zc_iflags); 4589209962Smm } 4590209962Smm kmem_free(buf, bufsize); 4591209962Smm zfsvfs_rele(zfsvfs, FTAG); 4592209962Smm 4593209962Smm return (error); 4594209962Smm} 4595209962Smm 4596209962Smm/* 4597209962Smm * inputs: 4598209962Smm * zc_name name of filesystem 4599209962Smm * 4600209962Smm * outputs: 4601209962Smm * none 4602209962Smm */ 4603209962Smmstatic int 4604209962Smmzfs_ioc_userspace_upgrade(zfs_cmd_t *zc) 4605209962Smm{ 4606209962Smm objset_t *os; 4607219089Spjd int error = 0; 4608209962Smm zfsvfs_t *zfsvfs; 4609209962Smm 4610209962Smm if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { 4611219089Spjd if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { 4612209962Smm /* 4613209962Smm * If userused is not enabled, it may be because the 4614209962Smm * objset needs to be closed & reopened (to grow the 4615209962Smm * objset_phys_t). Suspend/resume the fs will do that. 4616209962Smm */ 4617219089Spjd error = zfs_suspend_fs(zfsvfs); 4618253816Sdelphij if (error == 0) { 4619253816Sdelphij dmu_objset_refresh_ownership(zfsvfs->z_os, 4620253816Sdelphij zfsvfs); 4621219089Spjd error = zfs_resume_fs(zfsvfs, zc->zc_name); 4622253816Sdelphij } 4623209962Smm } 4624209962Smm if (error == 0) 4625209962Smm error = dmu_objset_userspace_upgrade(zfsvfs->z_os); 4626209962Smm VFS_RELE(zfsvfs->z_vfs); 4627209962Smm } else { 4628219089Spjd /* XXX kind of reading contents without owning */ 4629219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 4630248571Smm if (error != 0) 4631209962Smm return (error); 4632209962Smm 4633209962Smm error = dmu_objset_userspace_upgrade(os); 4634219089Spjd dmu_objset_rele(os, FTAG); 4635209962Smm } 4636209962Smm 4637209962Smm return (error); 4638209962Smm} 4639209962Smm 4640209962Smm#ifdef sun 4641209962Smm/* 4642185029Spjd * We don't want to have a hard dependency 4643185029Spjd * against some special symbols in sharefs 4644185029Spjd * nfs, and smbsrv. Determine them if needed when 4645185029Spjd * the first file system is shared. 4646185029Spjd * Neither sharefs, nfs or smbsrv are unloadable modules. 4647185029Spjd */ 4648185029Spjdint (*znfsexport_fs)(void *arg); 4649185029Spjdint (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); 4650185029Spjdint (*zsmbexport_fs)(void *arg, boolean_t add_share); 4651185029Spjd 4652185029Spjdint zfs_nfsshare_inited; 4653185029Spjdint zfs_smbshare_inited; 4654185029Spjd 4655185029Spjdddi_modhandle_t nfs_mod; 4656185029Spjdddi_modhandle_t sharefs_mod; 4657185029Spjdddi_modhandle_t smbsrv_mod; 4658209962Smm#endif /* sun */ 4659185029Spjdkmutex_t zfs_share_lock; 4660185029Spjd 4661209962Smm#ifdef sun 4662168404Spjdstatic int 4663185029Spjdzfs_init_sharefs() 4664185029Spjd{ 4665185029Spjd int error; 4666185029Spjd 4667185029Spjd ASSERT(MUTEX_HELD(&zfs_share_lock)); 4668185029Spjd /* Both NFS and SMB shares also require sharetab support. */ 4669185029Spjd if (sharefs_mod == NULL && ((sharefs_mod = 4670185029Spjd ddi_modopen("fs/sharefs", 4671185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4672249195Smm return (SET_ERROR(ENOSYS)); 4673185029Spjd } 4674185029Spjd if (zshare_fs == NULL && ((zshare_fs = 4675185029Spjd (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) 4676185029Spjd ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { 4677249195Smm return (SET_ERROR(ENOSYS)); 4678185029Spjd } 4679185029Spjd return (0); 4680185029Spjd} 4681219089Spjd#endif /* sun */ 4682185029Spjd 4683185029Spjdstatic int 4684185029Spjdzfs_ioc_share(zfs_cmd_t *zc) 4685185029Spjd{ 4686209962Smm#ifdef sun 4687185029Spjd int error; 4688185029Spjd int opcode; 4689185029Spjd 4690185029Spjd switch (zc->zc_share.z_sharetype) { 4691185029Spjd case ZFS_SHARE_NFS: 4692185029Spjd case ZFS_UNSHARE_NFS: 4693185029Spjd if (zfs_nfsshare_inited == 0) { 4694185029Spjd mutex_enter(&zfs_share_lock); 4695185029Spjd if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", 4696185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4697185029Spjd mutex_exit(&zfs_share_lock); 4698249195Smm return (SET_ERROR(ENOSYS)); 4699185029Spjd } 4700185029Spjd if (znfsexport_fs == NULL && 4701185029Spjd ((znfsexport_fs = (int (*)(void *)) 4702185029Spjd ddi_modsym(nfs_mod, 4703185029Spjd "nfs_export", &error)) == NULL)) { 4704185029Spjd mutex_exit(&zfs_share_lock); 4705249195Smm return (SET_ERROR(ENOSYS)); 4706185029Spjd } 4707185029Spjd error = zfs_init_sharefs(); 4708248571Smm if (error != 0) { 4709185029Spjd mutex_exit(&zfs_share_lock); 4710249195Smm return (SET_ERROR(ENOSYS)); 4711185029Spjd } 4712185029Spjd zfs_nfsshare_inited = 1; 4713185029Spjd mutex_exit(&zfs_share_lock); 4714185029Spjd } 4715185029Spjd break; 4716185029Spjd case ZFS_SHARE_SMB: 4717185029Spjd case ZFS_UNSHARE_SMB: 4718185029Spjd if (zfs_smbshare_inited == 0) { 4719185029Spjd mutex_enter(&zfs_share_lock); 4720185029Spjd if (smbsrv_mod == NULL && ((smbsrv_mod = 4721185029Spjd ddi_modopen("drv/smbsrv", 4722185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4723185029Spjd mutex_exit(&zfs_share_lock); 4724249195Smm return (SET_ERROR(ENOSYS)); 4725185029Spjd } 4726185029Spjd if (zsmbexport_fs == NULL && ((zsmbexport_fs = 4727185029Spjd (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, 4728185029Spjd "smb_server_share", &error)) == NULL)) { 4729185029Spjd mutex_exit(&zfs_share_lock); 4730249195Smm return (SET_ERROR(ENOSYS)); 4731185029Spjd } 4732185029Spjd error = zfs_init_sharefs(); 4733248571Smm if (error != 0) { 4734185029Spjd mutex_exit(&zfs_share_lock); 4735249195Smm return (SET_ERROR(ENOSYS)); 4736185029Spjd } 4737185029Spjd zfs_smbshare_inited = 1; 4738185029Spjd mutex_exit(&zfs_share_lock); 4739185029Spjd } 4740185029Spjd break; 4741185029Spjd default: 4742249195Smm return (SET_ERROR(EINVAL)); 4743185029Spjd } 4744185029Spjd 4745185029Spjd switch (zc->zc_share.z_sharetype) { 4746185029Spjd case ZFS_SHARE_NFS: 4747185029Spjd case ZFS_UNSHARE_NFS: 4748185029Spjd if (error = 4749185029Spjd znfsexport_fs((void *) 4750185029Spjd (uintptr_t)zc->zc_share.z_exportdata)) 4751185029Spjd return (error); 4752185029Spjd break; 4753185029Spjd case ZFS_SHARE_SMB: 4754185029Spjd case ZFS_UNSHARE_SMB: 4755185029Spjd if (error = zsmbexport_fs((void *) 4756185029Spjd (uintptr_t)zc->zc_share.z_exportdata, 4757185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? 4758209962Smm B_TRUE: B_FALSE)) { 4759185029Spjd return (error); 4760185029Spjd } 4761185029Spjd break; 4762185029Spjd } 4763185029Spjd 4764185029Spjd opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || 4765185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? 4766185029Spjd SHAREFS_ADD : SHAREFS_REMOVE; 4767185029Spjd 4768185029Spjd /* 4769185029Spjd * Add or remove share from sharetab 4770185029Spjd */ 4771185029Spjd error = zshare_fs(opcode, 4772185029Spjd (void *)(uintptr_t)zc->zc_share.z_sharedata, 4773185029Spjd zc->zc_share.z_sharemax); 4774185029Spjd 4775185029Spjd return (error); 4776219089Spjd 4777219089Spjd#else /* !sun */ 4778185029Spjd return (ENOSYS); 4779219089Spjd#endif /* !sun */ 4780185029Spjd} 4781185029Spjd 4782209962Smmace_t full_access[] = { 4783209962Smm {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} 4784209962Smm}; 4785209962Smm 4786219089Spjd/* 4787219089Spjd * inputs: 4788219089Spjd * zc_name name of containing filesystem 4789219089Spjd * zc_obj object # beyond which we want next in-use object # 4790219089Spjd * 4791219089Spjd * outputs: 4792219089Spjd * zc_obj next in-use object # 4793219089Spjd */ 4794219089Spjdstatic int 4795219089Spjdzfs_ioc_next_obj(zfs_cmd_t *zc) 4796219089Spjd{ 4797219089Spjd objset_t *os = NULL; 4798219089Spjd int error; 4799219089Spjd 4800219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 4801248571Smm if (error != 0) 4802219089Spjd return (error); 4803219089Spjd 4804219089Spjd error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 4805219089Spjd os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); 4806219089Spjd 4807219089Spjd dmu_objset_rele(os, FTAG); 4808219089Spjd return (error); 4809219089Spjd} 4810219089Spjd 4811219089Spjd/* 4812219089Spjd * inputs: 4813219089Spjd * zc_name name of filesystem 4814219089Spjd * zc_value prefix name for snapshot 4815219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor for calling process 4816219089Spjd * 4817219089Spjd * outputs: 4818248571Smm * zc_value short name of new snapshot 4819219089Spjd */ 4820219089Spjdstatic int 4821219089Spjdzfs_ioc_tmp_snapshot(zfs_cmd_t *zc) 4822219089Spjd{ 4823219089Spjd char *snap_name; 4824248571Smm char *hold_name; 4825219089Spjd int error; 4826248571Smm minor_t minor; 4827219089Spjd 4828248571Smm error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); 4829248571Smm if (error != 0) 4830248571Smm return (error); 4831248571Smm 4832219089Spjd snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, 4833219089Spjd (u_longlong_t)ddi_get_lbolt64()); 4834248571Smm hold_name = kmem_asprintf("%%%s", zc->zc_value); 4835219089Spjd 4836248571Smm error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, 4837248571Smm hold_name); 4838248571Smm if (error == 0) 4839248571Smm (void) strcpy(zc->zc_value, snap_name); 4840219089Spjd strfree(snap_name); 4841248571Smm strfree(hold_name); 4842248571Smm zfs_onexit_fd_rele(zc->zc_cleanup_fd); 4843248571Smm return (error); 4844219089Spjd} 4845219089Spjd 4846219089Spjd/* 4847219089Spjd * inputs: 4848219089Spjd * zc_name name of "to" snapshot 4849219089Spjd * zc_value name of "from" snapshot 4850219089Spjd * zc_cookie file descriptor to write diff data on 4851219089Spjd * 4852219089Spjd * outputs: 4853219089Spjd * dmu_diff_record_t's to the file descriptor 4854219089Spjd */ 4855219089Spjdstatic int 4856219089Spjdzfs_ioc_diff(zfs_cmd_t *zc) 4857219089Spjd{ 4858219089Spjd file_t *fp; 4859255219Spjd cap_rights_t rights; 4860219089Spjd offset_t off; 4861219089Spjd int error; 4862219089Spjd 4863255219Spjd fp = getf(zc->zc_cookie, cap_rights_init(&rights, CAP_WRITE)); 4864248571Smm if (fp == NULL) 4865249195Smm return (SET_ERROR(EBADF)); 4866219089Spjd 4867219089Spjd off = fp->f_offset; 4868219089Spjd 4869248571Smm#ifdef illumos 4870248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); 4871248571Smm#else 4872248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp, &off); 4873248571Smm#endif 4874219089Spjd 4875219089Spjd if (off >= 0 && off <= MAXOFFSET_T) 4876219089Spjd fp->f_offset = off; 4877219089Spjd releasef(zc->zc_cookie); 4878219089Spjd 4879219089Spjd return (error); 4880219089Spjd} 4881219089Spjd 4882209962Smm#ifdef sun 4883185029Spjd/* 4884209962Smm * Remove all ACL files in shares dir 4885209962Smm */ 4886209962Smmstatic int 4887209962Smmzfs_smb_acl_purge(znode_t *dzp) 4888209962Smm{ 4889209962Smm zap_cursor_t zc; 4890209962Smm zap_attribute_t zap; 4891209962Smm zfsvfs_t *zfsvfs = dzp->z_zfsvfs; 4892209962Smm int error; 4893209962Smm 4894209962Smm for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); 4895209962Smm (error = zap_cursor_retrieve(&zc, &zap)) == 0; 4896209962Smm zap_cursor_advance(&zc)) { 4897209962Smm if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, 4898209962Smm NULL, 0)) != 0) 4899209962Smm break; 4900209962Smm } 4901209962Smm zap_cursor_fini(&zc); 4902209962Smm return (error); 4903209962Smm} 4904209962Smm#endif /* sun */ 4905209962Smm 4906209962Smmstatic int 4907209962Smmzfs_ioc_smb_acl(zfs_cmd_t *zc) 4908209962Smm{ 4909209962Smm#ifdef sun 4910209962Smm vnode_t *vp; 4911209962Smm znode_t *dzp; 4912209962Smm vnode_t *resourcevp = NULL; 4913209962Smm znode_t *sharedir; 4914209962Smm zfsvfs_t *zfsvfs; 4915209962Smm nvlist_t *nvlist; 4916209962Smm char *src, *target; 4917209962Smm vattr_t vattr; 4918209962Smm vsecattr_t vsec; 4919209962Smm int error = 0; 4920209962Smm 4921209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 4922209962Smm NO_FOLLOW, NULL, &vp)) != 0) 4923209962Smm return (error); 4924209962Smm 4925209962Smm /* Now make sure mntpnt and dataset are ZFS */ 4926209962Smm 4927219089Spjd if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 4928209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 4929209962Smm zc->zc_name) != 0)) { 4930209962Smm VN_RELE(vp); 4931249195Smm return (SET_ERROR(EINVAL)); 4932209962Smm } 4933209962Smm 4934209962Smm dzp = VTOZ(vp); 4935209962Smm zfsvfs = dzp->z_zfsvfs; 4936209962Smm ZFS_ENTER(zfsvfs); 4937209962Smm 4938209962Smm /* 4939209962Smm * Create share dir if its missing. 4940209962Smm */ 4941209962Smm mutex_enter(&zfsvfs->z_lock); 4942209962Smm if (zfsvfs->z_shares_dir == 0) { 4943209962Smm dmu_tx_t *tx; 4944209962Smm 4945209962Smm tx = dmu_tx_create(zfsvfs->z_os); 4946209962Smm dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, 4947209962Smm ZFS_SHARES_DIR); 4948209962Smm dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); 4949209962Smm error = dmu_tx_assign(tx, TXG_WAIT); 4950248571Smm if (error != 0) { 4951209962Smm dmu_tx_abort(tx); 4952209962Smm } else { 4953209962Smm error = zfs_create_share_dir(zfsvfs, tx); 4954209962Smm dmu_tx_commit(tx); 4955209962Smm } 4956248571Smm if (error != 0) { 4957209962Smm mutex_exit(&zfsvfs->z_lock); 4958209962Smm VN_RELE(vp); 4959209962Smm ZFS_EXIT(zfsvfs); 4960209962Smm return (error); 4961209962Smm } 4962209962Smm } 4963209962Smm mutex_exit(&zfsvfs->z_lock); 4964209962Smm 4965209962Smm ASSERT(zfsvfs->z_shares_dir); 4966209962Smm if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { 4967209962Smm VN_RELE(vp); 4968209962Smm ZFS_EXIT(zfsvfs); 4969209962Smm return (error); 4970209962Smm } 4971209962Smm 4972209962Smm switch (zc->zc_cookie) { 4973209962Smm case ZFS_SMB_ACL_ADD: 4974209962Smm vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; 4975209962Smm vattr.va_type = VREG; 4976209962Smm vattr.va_mode = S_IFREG|0777; 4977209962Smm vattr.va_uid = 0; 4978209962Smm vattr.va_gid = 0; 4979209962Smm 4980209962Smm vsec.vsa_mask = VSA_ACE; 4981209962Smm vsec.vsa_aclentp = &full_access; 4982209962Smm vsec.vsa_aclentsz = sizeof (full_access); 4983209962Smm vsec.vsa_aclcnt = 1; 4984209962Smm 4985209962Smm error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, 4986209962Smm &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); 4987209962Smm if (resourcevp) 4988209962Smm VN_RELE(resourcevp); 4989209962Smm break; 4990209962Smm 4991209962Smm case ZFS_SMB_ACL_REMOVE: 4992209962Smm error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, 4993209962Smm NULL, 0); 4994209962Smm break; 4995209962Smm 4996209962Smm case ZFS_SMB_ACL_RENAME: 4997209962Smm if ((error = get_nvlist(zc->zc_nvlist_src, 4998219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { 4999209962Smm VN_RELE(vp); 5000209962Smm ZFS_EXIT(zfsvfs); 5001209962Smm return (error); 5002209962Smm } 5003209962Smm if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || 5004209962Smm nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, 5005209962Smm &target)) { 5006209962Smm VN_RELE(vp); 5007209962Smm VN_RELE(ZTOV(sharedir)); 5008209962Smm ZFS_EXIT(zfsvfs); 5009219089Spjd nvlist_free(nvlist); 5010209962Smm return (error); 5011209962Smm } 5012209962Smm error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, 5013209962Smm kcred, NULL, 0); 5014209962Smm nvlist_free(nvlist); 5015209962Smm break; 5016209962Smm 5017209962Smm case ZFS_SMB_ACL_PURGE: 5018209962Smm error = zfs_smb_acl_purge(sharedir); 5019209962Smm break; 5020209962Smm 5021209962Smm default: 5022249195Smm error = SET_ERROR(EINVAL); 5023209962Smm break; 5024209962Smm } 5025209962Smm 5026209962Smm VN_RELE(vp); 5027209962Smm VN_RELE(ZTOV(sharedir)); 5028209962Smm 5029209962Smm ZFS_EXIT(zfsvfs); 5030209962Smm 5031209962Smm return (error); 5032209962Smm#else /* !sun */ 5033209962Smm return (EOPNOTSUPP); 5034209962Smm#endif /* !sun */ 5035209962Smm} 5036209962Smm 5037209962Smm/* 5038248571Smm * innvl: { 5039248571Smm * "holds" -> { snapname -> holdname (string), ... } 5040248571Smm * (optional) "cleanup_fd" -> fd (int32) 5041248571Smm * } 5042219089Spjd * 5043248571Smm * outnvl: { 5044248571Smm * snapname -> error value (int32) 5045248571Smm * ... 5046248571Smm * } 5047219089Spjd */ 5048248571Smm/* ARGSUSED */ 5049219089Spjdstatic int 5050248571Smmzfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) 5051219089Spjd{ 5052248571Smm nvlist_t *holds; 5053248571Smm int cleanup_fd = -1; 5054219089Spjd int error; 5055219089Spjd minor_t minor = 0; 5056219089Spjd 5057248571Smm error = nvlist_lookup_nvlist(args, "holds", &holds); 5058248571Smm if (error != 0) 5059249195Smm return (SET_ERROR(EINVAL)); 5060219089Spjd 5061248571Smm if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { 5062248571Smm error = zfs_onexit_fd_hold(cleanup_fd, &minor); 5063248571Smm if (error != 0) 5064219089Spjd return (error); 5065219089Spjd } 5066219089Spjd 5067248571Smm error = dsl_dataset_user_hold(holds, minor, errlist); 5068248571Smm if (minor != 0) 5069248571Smm zfs_onexit_fd_rele(cleanup_fd); 5070219089Spjd return (error); 5071219089Spjd} 5072219089Spjd 5073219089Spjd/* 5074248571Smm * innvl is not used. 5075219089Spjd * 5076248571Smm * outnvl: { 5077248571Smm * holdname -> time added (uint64 seconds since epoch) 5078248571Smm * ... 5079248571Smm * } 5080219089Spjd */ 5081248571Smm/* ARGSUSED */ 5082219089Spjdstatic int 5083248571Smmzfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) 5084219089Spjd{ 5085248571Smm return (dsl_dataset_get_holds(snapname, outnvl)); 5086219089Spjd} 5087219089Spjd 5088219089Spjd/* 5089248571Smm * innvl: { 5090248571Smm * snapname -> { holdname, ... } 5091248571Smm * ... 5092248571Smm * } 5093219089Spjd * 5094248571Smm * outnvl: { 5095248571Smm * snapname -> error value (int32) 5096248571Smm * ... 5097248571Smm * } 5098219089Spjd */ 5099248571Smm/* ARGSUSED */ 5100219089Spjdstatic int 5101248571Smmzfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) 5102219089Spjd{ 5103248571Smm return (dsl_dataset_user_release(holds, errlist)); 5104219089Spjd} 5105219089Spjd 5106219089Spjd/* 5107228103Smm * inputs: 5108228103Smm * zc_name name of new filesystem or snapshot 5109228103Smm * zc_value full name of old snapshot 5110228103Smm * 5111228103Smm * outputs: 5112228103Smm * zc_cookie space in bytes 5113228103Smm * zc_objset_type compressed space in bytes 5114228103Smm * zc_perm_action uncompressed space in bytes 5115228103Smm */ 5116228103Smmstatic int 5117228103Smmzfs_ioc_space_written(zfs_cmd_t *zc) 5118228103Smm{ 5119228103Smm int error; 5120248571Smm dsl_pool_t *dp; 5121228103Smm dsl_dataset_t *new, *old; 5122228103Smm 5123248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 5124228103Smm if (error != 0) 5125228103Smm return (error); 5126248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); 5127228103Smm if (error != 0) { 5128248571Smm dsl_pool_rele(dp, FTAG); 5129248571Smm return (error); 5130248571Smm } 5131248571Smm error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); 5132248571Smm if (error != 0) { 5133228103Smm dsl_dataset_rele(new, FTAG); 5134248571Smm dsl_pool_rele(dp, FTAG); 5135228103Smm return (error); 5136228103Smm } 5137228103Smm 5138228103Smm error = dsl_dataset_space_written(old, new, &zc->zc_cookie, 5139228103Smm &zc->zc_objset_type, &zc->zc_perm_action); 5140228103Smm dsl_dataset_rele(old, FTAG); 5141228103Smm dsl_dataset_rele(new, FTAG); 5142248571Smm dsl_pool_rele(dp, FTAG); 5143228103Smm return (error); 5144228103Smm} 5145228103Smm 5146228103Smm/* 5147248571Smm * innvl: { 5148248571Smm * "firstsnap" -> snapshot name 5149248571Smm * } 5150228103Smm * 5151248571Smm * outnvl: { 5152248571Smm * "used" -> space in bytes 5153248571Smm * "compressed" -> compressed space in bytes 5154248571Smm * "uncompressed" -> uncompressed space in bytes 5155248571Smm * } 5156228103Smm */ 5157228103Smmstatic int 5158248571Smmzfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) 5159228103Smm{ 5160228103Smm int error; 5161248571Smm dsl_pool_t *dp; 5162228103Smm dsl_dataset_t *new, *old; 5163248571Smm char *firstsnap; 5164248571Smm uint64_t used, comp, uncomp; 5165228103Smm 5166248571Smm if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) 5167249195Smm return (SET_ERROR(EINVAL)); 5168248571Smm 5169248571Smm error = dsl_pool_hold(lastsnap, FTAG, &dp); 5170228103Smm if (error != 0) 5171228103Smm return (error); 5172248571Smm 5173248571Smm error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); 5174228103Smm if (error != 0) { 5175248571Smm dsl_pool_rele(dp, FTAG); 5176248571Smm return (error); 5177248571Smm } 5178248571Smm error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); 5179248571Smm if (error != 0) { 5180228103Smm dsl_dataset_rele(new, FTAG); 5181248571Smm dsl_pool_rele(dp, FTAG); 5182228103Smm return (error); 5183228103Smm } 5184228103Smm 5185248571Smm error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); 5186228103Smm dsl_dataset_rele(old, FTAG); 5187228103Smm dsl_dataset_rele(new, FTAG); 5188248571Smm dsl_pool_rele(dp, FTAG); 5189248571Smm fnvlist_add_uint64(outnvl, "used", used); 5190248571Smm fnvlist_add_uint64(outnvl, "compressed", comp); 5191248571Smm fnvlist_add_uint64(outnvl, "uncompressed", uncomp); 5192228103Smm return (error); 5193228103Smm} 5194228103Smm 5195185029Spjdstatic int 5196168404Spjdzfs_ioc_jail(zfs_cmd_t *zc) 5197168404Spjd{ 5198168404Spjd 5199185029Spjd return (zone_dataset_attach(curthread->td_ucred, zc->zc_name, 5200185029Spjd (int)zc->zc_jailid)); 5201168404Spjd} 5202168404Spjd 5203168404Spjdstatic int 5204168404Spjdzfs_ioc_unjail(zfs_cmd_t *zc) 5205168404Spjd{ 5206168404Spjd 5207185029Spjd return (zone_dataset_detach(curthread->td_ucred, zc->zc_name, 5208185029Spjd (int)zc->zc_jailid)); 5209168404Spjd} 5210168404Spjd 5211248571Smm/* 5212248571Smm * innvl: { 5213248571Smm * "fd" -> file descriptor to write stream to (int32) 5214248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5215248571Smm * } 5216248571Smm * 5217248571Smm * outnvl is unused 5218248571Smm */ 5219248571Smm/* ARGSUSED */ 5220248571Smmstatic int 5221248571Smmzfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5222248571Smm{ 5223255219Spjd cap_rights_t rights; 5224248571Smm int error; 5225248571Smm offset_t off; 5226248571Smm char *fromname = NULL; 5227248571Smm int fd; 5228168404Spjd 5229248571Smm error = nvlist_lookup_int32(innvl, "fd", &fd); 5230248571Smm if (error != 0) 5231249195Smm return (SET_ERROR(EINVAL)); 5232248571Smm 5233248571Smm (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); 5234248571Smm 5235255219Spjd file_t *fp = getf(fd, cap_rights_init(&rights, CAP_READ)); 5236248571Smm if (fp == NULL) 5237249195Smm return (SET_ERROR(EBADF)); 5238248571Smm 5239248571Smm off = fp->f_offset; 5240248571Smm#ifdef illumos 5241248571Smm error = dmu_send(snapname, fromname, fd, fp->f_vnode, &off); 5242248571Smm#else 5243248571Smm error = dmu_send(snapname, fromname, fd, fp, &off); 5244248571Smm#endif 5245248571Smm 5246248571Smm#ifdef illumos 5247248571Smm if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) 5248248571Smm fp->f_offset = off; 5249248571Smm#else 5250248571Smm fp->f_offset = off; 5251248571Smm#endif 5252248571Smm 5253248571Smm releasef(fd); 5254248571Smm return (error); 5255248571Smm} 5256248571Smm 5257248571Smm/* 5258248571Smm * Determine approximately how large a zfs send stream will be -- the number 5259248571Smm * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). 5260248571Smm * 5261248571Smm * innvl: { 5262248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5263248571Smm * } 5264248571Smm * 5265248571Smm * outnvl: { 5266248571Smm * "space" -> bytes of space (uint64) 5267248571Smm * } 5268248571Smm */ 5269248571Smmstatic int 5270248571Smmzfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5271248571Smm{ 5272248571Smm dsl_pool_t *dp; 5273248571Smm dsl_dataset_t *fromsnap = NULL; 5274248571Smm dsl_dataset_t *tosnap; 5275248571Smm int error; 5276248571Smm char *fromname; 5277248571Smm uint64_t space; 5278248571Smm 5279248571Smm error = dsl_pool_hold(snapname, FTAG, &dp); 5280248571Smm if (error != 0) 5281248571Smm return (error); 5282248571Smm 5283248571Smm error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); 5284248571Smm if (error != 0) { 5285248571Smm dsl_pool_rele(dp, FTAG); 5286248571Smm return (error); 5287248571Smm } 5288248571Smm 5289248571Smm error = nvlist_lookup_string(innvl, "fromsnap", &fromname); 5290248571Smm if (error == 0) { 5291248571Smm error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); 5292248571Smm if (error != 0) { 5293248571Smm dsl_dataset_rele(tosnap, FTAG); 5294248571Smm dsl_pool_rele(dp, FTAG); 5295248571Smm return (error); 5296248571Smm } 5297248571Smm } 5298248571Smm 5299248571Smm error = dmu_send_estimate(tosnap, fromsnap, &space); 5300248571Smm fnvlist_add_uint64(outnvl, "space", space); 5301248571Smm 5302248571Smm if (fromsnap != NULL) 5303248571Smm dsl_dataset_rele(fromsnap, FTAG); 5304248571Smm dsl_dataset_rele(tosnap, FTAG); 5305248571Smm dsl_pool_rele(dp, FTAG); 5306248571Smm return (error); 5307248571Smm} 5308248571Smm 5309248571Smm 5310248571Smmstatic zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; 5311248571Smm 5312248571Smmstatic void 5313248571Smmzfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5314248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 5315248571Smm boolean_t log_history, zfs_ioc_poolcheck_t pool_check) 5316248571Smm{ 5317248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 5318248571Smm 5319248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 5320248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 5321248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 5322248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 5323248571Smm 5324248571Smm vec->zvec_legacy_func = func; 5325248571Smm vec->zvec_secpolicy = secpolicy; 5326248571Smm vec->zvec_namecheck = namecheck; 5327248571Smm vec->zvec_allow_log = log_history; 5328248571Smm vec->zvec_pool_check = pool_check; 5329248571Smm} 5330248571Smm 5331248571Smm/* 5332248571Smm * See the block comment at the beginning of this file for details on 5333248571Smm * each argument to this function. 5334248571Smm */ 5335248571Smmstatic void 5336248571Smmzfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, 5337248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 5338248571Smm zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, 5339248571Smm boolean_t allow_log) 5340248571Smm{ 5341248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 5342248571Smm 5343248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 5344248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 5345248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 5346248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 5347248571Smm 5348248571Smm /* if we are logging, the name must be valid */ 5349248571Smm ASSERT(!allow_log || namecheck != NO_NAME); 5350248571Smm 5351248571Smm vec->zvec_name = name; 5352248571Smm vec->zvec_func = func; 5353248571Smm vec->zvec_secpolicy = secpolicy; 5354248571Smm vec->zvec_namecheck = namecheck; 5355248571Smm vec->zvec_pool_check = pool_check; 5356248571Smm vec->zvec_smush_outnvlist = smush_outnvlist; 5357248571Smm vec->zvec_allow_log = allow_log; 5358248571Smm} 5359248571Smm 5360248571Smmstatic void 5361248571Smmzfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5362248571Smm zfs_secpolicy_func_t *secpolicy, boolean_t log_history, 5363248571Smm zfs_ioc_poolcheck_t pool_check) 5364248571Smm{ 5365248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5366248571Smm POOL_NAME, log_history, pool_check); 5367248571Smm} 5368248571Smm 5369248571Smmstatic void 5370248571Smmzfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5371248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) 5372248571Smm{ 5373248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5374248571Smm DATASET_NAME, B_FALSE, pool_check); 5375248571Smm} 5376248571Smm 5377248571Smmstatic void 5378248571Smmzfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 5379248571Smm{ 5380248571Smm zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, 5381248571Smm POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5382248571Smm} 5383248571Smm 5384248571Smmstatic void 5385248571Smmzfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5386248571Smm zfs_secpolicy_func_t *secpolicy) 5387248571Smm{ 5388248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5389248571Smm NO_NAME, B_FALSE, POOL_CHECK_NONE); 5390248571Smm} 5391248571Smm 5392248571Smmstatic void 5393248571Smmzfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, 5394248571Smm zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) 5395248571Smm{ 5396248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5397248571Smm DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); 5398248571Smm} 5399248571Smm 5400248571Smmstatic void 5401248571Smmzfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 5402248571Smm{ 5403248571Smm zfs_ioctl_register_dataset_read_secpolicy(ioc, func, 5404248571Smm zfs_secpolicy_read); 5405248571Smm} 5406248571Smm 5407248571Smmstatic void 5408248571Smmzfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5409248571Smm zfs_secpolicy_func_t *secpolicy) 5410248571Smm{ 5411248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5412248571Smm DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5413248571Smm} 5414248571Smm 5415248571Smmstatic void 5416248571Smmzfs_ioctl_init(void) 5417248571Smm{ 5418248571Smm zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, 5419248571Smm zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, 5420248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5421248571Smm 5422248571Smm zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, 5423248571Smm zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, 5424248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); 5425248571Smm 5426248571Smm zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, 5427248571Smm zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, 5428248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5429248571Smm 5430248571Smm zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, 5431248571Smm zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, 5432248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5433248571Smm 5434248571Smm zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, 5435248571Smm zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, 5436248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5437248571Smm 5438248571Smm zfs_ioctl_register("create", ZFS_IOC_CREATE, 5439248571Smm zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, 5440248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5441248571Smm 5442248571Smm zfs_ioctl_register("clone", ZFS_IOC_CLONE, 5443248571Smm zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, 5444248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5445248571Smm 5446248571Smm zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, 5447248571Smm zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, 5448248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5449248571Smm 5450248571Smm zfs_ioctl_register("hold", ZFS_IOC_HOLD, 5451248571Smm zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, 5452248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5453248571Smm zfs_ioctl_register("release", ZFS_IOC_RELEASE, 5454248571Smm zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, 5455248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5456248571Smm 5457248571Smm zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, 5458248571Smm zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, 5459248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5460248571Smm 5461254587Sdelphij zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, 5462254587Sdelphij zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, 5463254587Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); 5464254587Sdelphij 5465248571Smm /* IOCTLS that use the legacy function signature */ 5466248571Smm 5467248571Smm zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, 5468248571Smm zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); 5469248571Smm 5470248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, 5471248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5472248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, 5473248571Smm zfs_ioc_pool_scan); 5474248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, 5475248571Smm zfs_ioc_pool_upgrade); 5476248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, 5477248571Smm zfs_ioc_vdev_add); 5478248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, 5479248571Smm zfs_ioc_vdev_remove); 5480248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, 5481248571Smm zfs_ioc_vdev_set_state); 5482248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, 5483248571Smm zfs_ioc_vdev_attach); 5484248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, 5485248571Smm zfs_ioc_vdev_detach); 5486248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, 5487248571Smm zfs_ioc_vdev_setpath); 5488248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, 5489248571Smm zfs_ioc_vdev_setfru); 5490248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, 5491248571Smm zfs_ioc_pool_set_props); 5492248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, 5493248571Smm zfs_ioc_vdev_split); 5494248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, 5495248571Smm zfs_ioc_pool_reguid); 5496248571Smm 5497248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, 5498248571Smm zfs_ioc_pool_configs, zfs_secpolicy_none); 5499248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, 5500248571Smm zfs_ioc_pool_tryimport, zfs_secpolicy_config); 5501248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, 5502248571Smm zfs_ioc_inject_fault, zfs_secpolicy_inject); 5503248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, 5504248571Smm zfs_ioc_clear_fault, zfs_secpolicy_inject); 5505248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, 5506248571Smm zfs_ioc_inject_list_next, zfs_secpolicy_inject); 5507248571Smm 5508248571Smm /* 5509248571Smm * pool destroy, and export don't log the history as part of 5510248571Smm * zfsdev_ioctl, but rather zfs_ioc_pool_export 5511248571Smm * does the logging of those commands. 5512248571Smm */ 5513248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, 5514248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 5515248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, 5516248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 5517248571Smm 5518248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, 5519248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 5520248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, 5521248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 5522248571Smm 5523248571Smm zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, 5524253806Smav zfs_secpolicy_inject, B_FALSE, POOL_CHECK_NONE); 5525248571Smm zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, 5526248571Smm zfs_ioc_dsobj_to_dsname, 5527253806Smav zfs_secpolicy_diff, B_FALSE, POOL_CHECK_NONE); 5528248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, 5529248571Smm zfs_ioc_pool_get_history, 5530248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); 5531248571Smm 5532248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, 5533248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5534248571Smm 5535248571Smm zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, 5536253806Smav zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5537248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, 5538248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); 5539248571Smm 5540248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, 5541248571Smm zfs_ioc_space_written); 5542248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, 5543248571Smm zfs_ioc_objset_recvd_props); 5544248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, 5545248571Smm zfs_ioc_next_obj); 5546248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, 5547248571Smm zfs_ioc_get_fsacl); 5548248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, 5549248571Smm zfs_ioc_objset_stats); 5550248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, 5551248571Smm zfs_ioc_objset_zplprops); 5552248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, 5553248571Smm zfs_ioc_dataset_list_next); 5554248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, 5555248571Smm zfs_ioc_snapshot_list_next); 5556248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, 5557248571Smm zfs_ioc_send_progress); 5558248571Smm 5559248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, 5560248571Smm zfs_ioc_diff, zfs_secpolicy_diff); 5561248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, 5562248571Smm zfs_ioc_obj_to_stats, zfs_secpolicy_diff); 5563248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, 5564248571Smm zfs_ioc_obj_to_path, zfs_secpolicy_diff); 5565248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, 5566248571Smm zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); 5567248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, 5568248571Smm zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); 5569248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, 5570248571Smm zfs_ioc_send, zfs_secpolicy_send); 5571248571Smm 5572248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, 5573248571Smm zfs_secpolicy_none); 5574248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, 5575248571Smm zfs_secpolicy_destroy); 5576248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, 5577248571Smm zfs_secpolicy_rename); 5578248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, 5579248571Smm zfs_secpolicy_recv); 5580248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, 5581248571Smm zfs_secpolicy_promote); 5582248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, 5583248571Smm zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); 5584248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, 5585248571Smm zfs_secpolicy_set_fsacl); 5586248571Smm 5587248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, 5588248571Smm zfs_secpolicy_share, POOL_CHECK_NONE); 5589248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, 5590248571Smm zfs_secpolicy_smb_acl, POOL_CHECK_NONE); 5591248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, 5592248571Smm zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, 5593248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5594248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, 5595248571Smm zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, 5596248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5597252380Smm 5598252380Smm#ifdef __FreeBSD__ 5599252380Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_JAIL, zfs_ioc_jail, 5600252380Smm zfs_secpolicy_config, POOL_CHECK_NONE); 5601252380Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_UNJAIL, zfs_ioc_unjail, 5602252380Smm zfs_secpolicy_config, POOL_CHECK_NONE); 5603252380Smm#endif 5604248571Smm} 5605248571Smm 5606209962Smmint 5607246688Smmpool_status_check(const char *name, zfs_ioc_namecheck_t type, 5608246688Smm zfs_ioc_poolcheck_t check) 5609209962Smm{ 5610209962Smm spa_t *spa; 5611209962Smm int error; 5612209962Smm 5613209962Smm ASSERT(type == POOL_NAME || type == DATASET_NAME); 5614209962Smm 5615246688Smm if (check & POOL_CHECK_NONE) 5616246688Smm return (0); 5617246688Smm 5618209962Smm error = spa_open(name, &spa, FTAG); 5619209962Smm if (error == 0) { 5620246688Smm if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) 5621249195Smm error = SET_ERROR(EAGAIN); 5622246688Smm else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) 5623249195Smm error = SET_ERROR(EROFS); 5624209962Smm spa_close(spa, FTAG); 5625209962Smm } 5626209962Smm return (error); 5627209962Smm} 5628209962Smm 5629219089Spjd/* 5630219089Spjd * Find a free minor number. 5631219089Spjd */ 5632219089Spjdminor_t 5633219089Spjdzfsdev_minor_alloc(void) 5634219089Spjd{ 5635219089Spjd static minor_t last_minor; 5636219089Spjd minor_t m; 5637219089Spjd 5638224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5639219089Spjd 5640219089Spjd for (m = last_minor + 1; m != last_minor; m++) { 5641219089Spjd if (m > ZFSDEV_MAX_MINOR) 5642219089Spjd m = 1; 5643219089Spjd if (ddi_get_soft_state(zfsdev_state, m) == NULL) { 5644219089Spjd last_minor = m; 5645219089Spjd return (m); 5646219089Spjd } 5647219089Spjd } 5648219089Spjd 5649219089Spjd return (0); 5650219089Spjd} 5651219089Spjd 5652168404Spjdstatic int 5653219089Spjdzfs_ctldev_init(struct cdev *devp) 5654219089Spjd{ 5655219089Spjd minor_t minor; 5656219089Spjd zfs_soft_state_t *zs; 5657219089Spjd 5658224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5659219089Spjd 5660219089Spjd minor = zfsdev_minor_alloc(); 5661219089Spjd if (minor == 0) 5662249195Smm return (SET_ERROR(ENXIO)); 5663219089Spjd 5664219089Spjd if (ddi_soft_state_zalloc(zfsdev_state, minor) != DDI_SUCCESS) 5665249195Smm return (SET_ERROR(EAGAIN)); 5666219089Spjd 5667219089Spjd devfs_set_cdevpriv((void *)(uintptr_t)minor, zfsdev_close); 5668219089Spjd 5669219089Spjd zs = ddi_get_soft_state(zfsdev_state, minor); 5670219089Spjd zs->zss_type = ZSST_CTLDEV; 5671219089Spjd zfs_onexit_init((zfs_onexit_t **)&zs->zss_data); 5672219089Spjd 5673219089Spjd return (0); 5674219089Spjd} 5675219089Spjd 5676219089Spjdstatic void 5677219089Spjdzfs_ctldev_destroy(zfs_onexit_t *zo, minor_t minor) 5678219089Spjd{ 5679224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5680219089Spjd 5681219089Spjd zfs_onexit_destroy(zo); 5682219089Spjd ddi_soft_state_free(zfsdev_state, minor); 5683219089Spjd} 5684219089Spjd 5685219089Spjdvoid * 5686219089Spjdzfsdev_get_soft_state(minor_t minor, enum zfs_soft_state_type which) 5687219089Spjd{ 5688219089Spjd zfs_soft_state_t *zp; 5689219089Spjd 5690219089Spjd zp = ddi_get_soft_state(zfsdev_state, minor); 5691219089Spjd if (zp == NULL || zp->zss_type != which) 5692219089Spjd return (NULL); 5693219089Spjd 5694219089Spjd return (zp->zss_data); 5695219089Spjd} 5696219089Spjd 5697219089Spjdstatic int 5698219089Spjdzfsdev_open(struct cdev *devp, int flag, int mode, struct thread *td) 5699219089Spjd{ 5700219089Spjd int error = 0; 5701219089Spjd 5702219089Spjd#ifdef sun 5703219089Spjd if (getminor(*devp) != 0) 5704219089Spjd return (zvol_open(devp, flag, otyp, cr)); 5705219089Spjd#endif 5706219089Spjd 5707219089Spjd /* This is the control device. Allocate a new minor if requested. */ 5708219089Spjd if (flag & FEXCL) { 5709224791Spjd mutex_enter(&spa_namespace_lock); 5710219089Spjd error = zfs_ctldev_init(devp); 5711224791Spjd mutex_exit(&spa_namespace_lock); 5712219089Spjd } 5713219089Spjd 5714219089Spjd return (error); 5715219089Spjd} 5716219089Spjd 5717219089Spjdstatic void 5718219089Spjdzfsdev_close(void *data) 5719219089Spjd{ 5720219089Spjd zfs_onexit_t *zo; 5721219089Spjd minor_t minor = (minor_t)(uintptr_t)data; 5722219089Spjd 5723219089Spjd if (minor == 0) 5724219089Spjd return; 5725219089Spjd 5726224791Spjd mutex_enter(&spa_namespace_lock); 5727219089Spjd zo = zfsdev_get_soft_state(minor, ZSST_CTLDEV); 5728219089Spjd if (zo == NULL) { 5729224791Spjd mutex_exit(&spa_namespace_lock); 5730219089Spjd return; 5731219089Spjd } 5732219089Spjd zfs_ctldev_destroy(zo, minor); 5733224791Spjd mutex_exit(&spa_namespace_lock); 5734219089Spjd} 5735219089Spjd 5736219089Spjdstatic int 5737248571Smmzfsdev_ioctl(struct cdev *dev, u_long zcmd, caddr_t arg, int flag, 5738168404Spjd struct thread *td) 5739168404Spjd{ 5740219089Spjd zfs_cmd_t *zc; 5741248571Smm uint_t vecnum; 5742249319Smm int error, rc, len; 5743249004Smm#ifdef illumos 5744248571Smm minor_t minor = getminor(dev); 5745248571Smm#else 5746249319Smm zfs_iocparm_t *zc_iocparm; 5747249319Smm int cflag, cmd, oldvecnum; 5748249319Smm boolean_t newioc, compat; 5749248571Smm cred_t *cr = td->td_ucred; 5750248571Smm#endif 5751248571Smm const zfs_ioc_vec_t *vec; 5752248571Smm char *saved_poolname = NULL; 5753248571Smm nvlist_t *innvl = NULL; 5754168404Spjd 5755219089Spjd cflag = ZFS_CMD_COMPAT_NONE; 5756249319Smm compat = B_FALSE; 5757249319Smm newioc = B_TRUE; 5758249319Smm 5759248571Smm len = IOCPARM_LEN(zcmd); 5760248571Smm cmd = zcmd & 0xff; 5761219089Spjd 5762214854Sdelphij /* 5763247540Smm * Check if we are talking to supported older binaries 5764247540Smm * and translate zfs_cmd if necessary 5765214854Sdelphij */ 5766249319Smm if (len != sizeof(zfs_iocparm_t)) { 5767249319Smm newioc = B_FALSE; 5768249319Smm if (len == sizeof(zfs_cmd_t)) { 5769249319Smm cflag = ZFS_CMD_COMPAT_LZC; 5770249319Smm vecnum = cmd; 5771249319Smm } else if (len == sizeof(zfs_cmd_deadman_t)) { 5772248571Smm cflag = ZFS_CMD_COMPAT_DEADMAN; 5773249319Smm compat = B_TRUE; 5774248571Smm vecnum = cmd; 5775248571Smm } else if (len == sizeof(zfs_cmd_v28_t)) { 5776247540Smm cflag = ZFS_CMD_COMPAT_V28; 5777249319Smm compat = B_TRUE; 5778248571Smm vecnum = cmd; 5779247540Smm } else if (len == sizeof(zfs_cmd_v15_t)) { 5780219089Spjd cflag = ZFS_CMD_COMPAT_V15; 5781249319Smm compat = B_TRUE; 5782248571Smm vecnum = zfs_ioctl_v15_to_v28[cmd]; 5783219089Spjd } else 5784219089Spjd return (EINVAL); 5785249319Smm } else 5786248571Smm vecnum = cmd; 5787214854Sdelphij 5788248571Smm#ifdef illumos 5789248571Smm vecnum = cmd - ZFS_IOC_FIRST; 5790248571Smm ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip)); 5791248571Smm#endif 5792248571Smm 5793249319Smm if (compat) { 5794248571Smm if (vecnum == ZFS_IOC_COMPAT_PASS) 5795219089Spjd return (0); 5796248571Smm else if (vecnum == ZFS_IOC_COMPAT_FAIL) 5797219089Spjd return (ENOTSUP); 5798219089Spjd } 5799168404Spjd 5800247540Smm /* 5801247540Smm * Check if we have sufficient kernel memory allocated 5802247540Smm * for the zfs_cmd_t request. Bail out if not so we 5803247540Smm * will not access undefined memory region. 5804247540Smm */ 5805248571Smm if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 5806249195Smm return (SET_ERROR(EINVAL)); 5807248571Smm vec = &zfs_ioc_vec[vecnum]; 5808168404Spjd 5809248571Smm#ifdef illumos 5810248571Smm zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 5811248571Smm bzero(zc, sizeof(zfs_cmd_t)); 5812248571Smm 5813248571Smm error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); 5814248571Smm if (error != 0) { 5815249195Smm error = SET_ERROR(EFAULT); 5816248571Smm goto out; 5817248571Smm } 5818249319Smm#else /* !illumos */ 5819249319Smm /* 5820249319Smm * We don't alloc/free zc only if talking to library ioctl version 2 5821249319Smm */ 5822249319Smm if (cflag != ZFS_CMD_COMPAT_LZC) { 5823219089Spjd zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 5824219089Spjd bzero(zc, sizeof(zfs_cmd_t)); 5825249319Smm } else { 5826249319Smm zc = (void *)arg; 5827249319Smm error = 0; 5828249319Smm } 5829249319Smm 5830249319Smm if (newioc) { 5831249319Smm zc_iocparm = (void *)arg; 5832249319Smm if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_t)) { 5833249319Smm error = SET_ERROR(EFAULT); 5834249319Smm goto out; 5835249319Smm } 5836249326Smm error = ddi_copyin((void *)(uintptr_t)zc_iocparm->zfs_cmd, zc, 5837249319Smm sizeof(zfs_cmd_t), flag); 5838249319Smm if (error != 0) { 5839249319Smm error = SET_ERROR(EFAULT); 5840249319Smm goto out; 5841249319Smm } 5842249319Smm } 5843249319Smm 5844249319Smm if (compat) { 5845248571Smm zfs_cmd_compat_get(zc, arg, cflag); 5846248571Smm oldvecnum = vecnum; 5847248571Smm error = zfs_ioctl_compat_pre(zc, &vecnum, cflag); 5848248571Smm if (error != 0) 5849248571Smm goto out; 5850248571Smm if (oldvecnum != vecnum) 5851248571Smm vec = &zfs_ioc_vec[vecnum]; 5852249319Smm } 5853249319Smm#endif /* !illumos */ 5854248571Smm 5855248571Smm zc->zc_iflags = flag & FKIOCTL; 5856248571Smm if (zc->zc_nvlist_src_size != 0) { 5857248571Smm error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 5858248571Smm zc->zc_iflags, &innvl); 5859248571Smm if (error != 0) 5860248571Smm goto out; 5861219089Spjd } 5862219089Spjd 5863248571Smm /* rewrite innvl for backwards compatibility */ 5864249319Smm if (compat) 5865248571Smm innvl = zfs_ioctl_compat_innvl(zc, innvl, vecnum, cflag); 5866168404Spjd 5867168404Spjd /* 5868168404Spjd * Ensure that all pool/dataset names are valid before we pass down to 5869168404Spjd * the lower layers. 5870168404Spjd */ 5871248571Smm zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 5872248571Smm switch (vec->zvec_namecheck) { 5873248571Smm case POOL_NAME: 5874248571Smm if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 5875249195Smm error = SET_ERROR(EINVAL); 5876248571Smm else 5877248571Smm error = pool_status_check(zc->zc_name, 5878248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 5879248571Smm break; 5880168404Spjd 5881248571Smm case DATASET_NAME: 5882248571Smm if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 5883249195Smm error = SET_ERROR(EINVAL); 5884248571Smm else 5885248571Smm error = pool_status_check(zc->zc_name, 5886248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 5887248571Smm break; 5888168404Spjd 5889248571Smm case NO_NAME: 5890248571Smm break; 5891168404Spjd } 5892168404Spjd 5893248571Smm if (error == 0 && !(flag & FKIOCTL)) 5894248571Smm error = vec->zvec_secpolicy(zc, innvl, cr); 5895168404Spjd 5896248571Smm if (error != 0) 5897248571Smm goto out; 5898248571Smm 5899248571Smm /* legacy ioctls can modify zc_name */ 5900248571Smm len = strcspn(zc->zc_name, "/@") + 1; 5901248571Smm saved_poolname = kmem_alloc(len, KM_SLEEP); 5902248571Smm (void) strlcpy(saved_poolname, zc->zc_name, len); 5903248571Smm 5904248571Smm if (vec->zvec_func != NULL) { 5905248571Smm nvlist_t *outnvl; 5906248571Smm int puterror = 0; 5907248571Smm spa_t *spa; 5908248571Smm nvlist_t *lognv = NULL; 5909248571Smm 5910248571Smm ASSERT(vec->zvec_legacy_func == NULL); 5911248571Smm 5912248571Smm /* 5913248571Smm * Add the innvl to the lognv before calling the func, 5914248571Smm * in case the func changes the innvl. 5915248571Smm */ 5916248571Smm if (vec->zvec_allow_log) { 5917248571Smm lognv = fnvlist_alloc(); 5918248571Smm fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, 5919248571Smm vec->zvec_name); 5920248571Smm if (!nvlist_empty(innvl)) { 5921248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, 5922248571Smm innvl); 5923248571Smm } 5924248571Smm } 5925248571Smm 5926248571Smm outnvl = fnvlist_alloc(); 5927248571Smm error = vec->zvec_func(zc->zc_name, innvl, outnvl); 5928248571Smm 5929248571Smm if (error == 0 && vec->zvec_allow_log && 5930248571Smm spa_open(zc->zc_name, &spa, FTAG) == 0) { 5931248571Smm if (!nvlist_empty(outnvl)) { 5932248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, 5933248571Smm outnvl); 5934248571Smm } 5935248571Smm (void) spa_history_log_nvl(spa, lognv); 5936248571Smm spa_close(spa, FTAG); 5937248571Smm } 5938248571Smm fnvlist_free(lognv); 5939248571Smm 5940248571Smm /* rewrite outnvl for backwards compatibility */ 5941249319Smm if (cflag != ZFS_CMD_COMPAT_NONE && cflag != ZFS_CMD_COMPAT_LZC) 5942248571Smm outnvl = zfs_ioctl_compat_outnvl(zc, outnvl, vecnum, 5943248571Smm cflag); 5944248571Smm 5945248571Smm if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { 5946248571Smm int smusherror = 0; 5947248571Smm if (vec->zvec_smush_outnvlist) { 5948248571Smm smusherror = nvlist_smush(outnvl, 5949248571Smm zc->zc_nvlist_dst_size); 5950248571Smm } 5951248571Smm if (smusherror == 0) 5952248571Smm puterror = put_nvlist(zc, outnvl); 5953248571Smm } 5954248571Smm 5955248571Smm if (puterror != 0) 5956248571Smm error = puterror; 5957248571Smm 5958248571Smm nvlist_free(outnvl); 5959248571Smm } else { 5960248571Smm error = vec->zvec_legacy_func(zc); 5961196985Spjd } 5962185029Spjd 5963248571Smmout: 5964248571Smm nvlist_free(innvl); 5965249319Smm 5966249319Smm if (compat) { 5967249319Smm zfs_ioctl_compat_post(zc, cmd, cflag); 5968249319Smm zfs_cmd_compat_put(zc, arg, vecnum, cflag); 5969249319Smm } 5970249319Smm 5971249004Smm#ifdef illumos 5972249004Smm rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); 5973248571Smm if (error == 0 && rc != 0) 5974249195Smm error = SET_ERROR(EFAULT); 5975249319Smm#else 5976249319Smm if (newioc) { 5977249326Smm rc = ddi_copyout(zc, (void *)(uintptr_t)zc_iocparm->zfs_cmd, 5978249319Smm sizeof (zfs_cmd_t), flag); 5979249319Smm if (error == 0 && rc != 0) 5980249319Smm error = SET_ERROR(EFAULT); 5981249319Smm } 5982249004Smm#endif 5983248571Smm if (error == 0 && vec->zvec_allow_log) { 5984248571Smm char *s = tsd_get(zfs_allow_log_key); 5985248571Smm if (s != NULL) 5986248571Smm strfree(s); 5987248571Smm (void) tsd_set(zfs_allow_log_key, saved_poolname); 5988248571Smm } else { 5989248571Smm if (saved_poolname != NULL) 5990248571Smm strfree(saved_poolname); 5991248571Smm } 5992248571Smm 5993248571Smm#ifdef illumos 5994248571Smm kmem_free(zc, sizeof (zfs_cmd_t)); 5995249319Smm#else 5996249319Smm /* 5997249319Smm * We don't alloc/free zc only if talking to library ioctl version 2 5998249319Smm */ 5999249319Smm if (cflag != ZFS_CMD_COMPAT_LZC) 6000249319Smm kmem_free(zc, sizeof (zfs_cmd_t)); 6001248571Smm#endif 6002168404Spjd return (error); 6003168404Spjd} 6004168404Spjd 6005219089Spjd#ifdef sun 6006219089Spjdstatic int 6007219089Spjdzfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 6008219089Spjd{ 6009219089Spjd if (cmd != DDI_ATTACH) 6010219089Spjd return (DDI_FAILURE); 6011219089Spjd 6012219089Spjd if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 6013219089Spjd DDI_PSEUDO, 0) == DDI_FAILURE) 6014219089Spjd return (DDI_FAILURE); 6015219089Spjd 6016219089Spjd zfs_dip = dip; 6017219089Spjd 6018219089Spjd ddi_report_dev(dip); 6019219089Spjd 6020219089Spjd return (DDI_SUCCESS); 6021219089Spjd} 6022219089Spjd 6023219089Spjdstatic int 6024219089Spjdzfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 6025219089Spjd{ 6026219089Spjd if (spa_busy() || zfs_busy() || zvol_busy()) 6027219089Spjd return (DDI_FAILURE); 6028219089Spjd 6029219089Spjd if (cmd != DDI_DETACH) 6030219089Spjd return (DDI_FAILURE); 6031219089Spjd 6032219089Spjd zfs_dip = NULL; 6033219089Spjd 6034219089Spjd ddi_prop_remove_all(dip); 6035219089Spjd ddi_remove_minor_node(dip, NULL); 6036219089Spjd 6037219089Spjd return (DDI_SUCCESS); 6038219089Spjd} 6039219089Spjd 6040219089Spjd/*ARGSUSED*/ 6041219089Spjdstatic int 6042219089Spjdzfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 6043219089Spjd{ 6044219089Spjd switch (infocmd) { 6045219089Spjd case DDI_INFO_DEVT2DEVINFO: 6046219089Spjd *result = zfs_dip; 6047219089Spjd return (DDI_SUCCESS); 6048219089Spjd 6049219089Spjd case DDI_INFO_DEVT2INSTANCE: 6050219089Spjd *result = (void *)0; 6051219089Spjd return (DDI_SUCCESS); 6052219089Spjd } 6053219089Spjd 6054219089Spjd return (DDI_FAILURE); 6055219089Spjd} 6056219089Spjd#endif /* sun */ 6057219089Spjd 6058168404Spjd/* 6059168404Spjd * OK, so this is a little weird. 6060168404Spjd * 6061168404Spjd * /dev/zfs is the control node, i.e. minor 0. 6062168404Spjd * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 6063168404Spjd * 6064168404Spjd * /dev/zfs has basically nothing to do except serve up ioctls, 6065168404Spjd * so most of the standard driver entry points are in zvol.c. 6066168404Spjd */ 6067219089Spjd#ifdef sun 6068219089Spjdstatic struct cb_ops zfs_cb_ops = { 6069219089Spjd zfsdev_open, /* open */ 6070219089Spjd zfsdev_close, /* close */ 6071219089Spjd zvol_strategy, /* strategy */ 6072219089Spjd nodev, /* print */ 6073219089Spjd zvol_dump, /* dump */ 6074219089Spjd zvol_read, /* read */ 6075219089Spjd zvol_write, /* write */ 6076219089Spjd zfsdev_ioctl, /* ioctl */ 6077219089Spjd nodev, /* devmap */ 6078219089Spjd nodev, /* mmap */ 6079219089Spjd nodev, /* segmap */ 6080219089Spjd nochpoll, /* poll */ 6081219089Spjd ddi_prop_op, /* prop_op */ 6082219089Spjd NULL, /* streamtab */ 6083219089Spjd D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 6084219089Spjd CB_REV, /* version */ 6085219089Spjd nodev, /* async read */ 6086219089Spjd nodev, /* async write */ 6087219089Spjd}; 6088219089Spjd 6089219089Spjdstatic struct dev_ops zfs_dev_ops = { 6090219089Spjd DEVO_REV, /* version */ 6091219089Spjd 0, /* refcnt */ 6092219089Spjd zfs_info, /* info */ 6093219089Spjd nulldev, /* identify */ 6094219089Spjd nulldev, /* probe */ 6095219089Spjd zfs_attach, /* attach */ 6096219089Spjd zfs_detach, /* detach */ 6097219089Spjd nodev, /* reset */ 6098219089Spjd &zfs_cb_ops, /* driver operations */ 6099219089Spjd NULL, /* no bus operations */ 6100219089Spjd NULL, /* power */ 6101219089Spjd ddi_quiesce_not_needed, /* quiesce */ 6102219089Spjd}; 6103219089Spjd 6104219089Spjdstatic struct modldrv zfs_modldrv = { 6105219089Spjd &mod_driverops, 6106219089Spjd "ZFS storage pool", 6107219089Spjd &zfs_dev_ops 6108219089Spjd}; 6109219089Spjd 6110219089Spjdstatic struct modlinkage modlinkage = { 6111219089Spjd MODREV_1, 6112219089Spjd (void *)&zfs_modlfs, 6113219089Spjd (void *)&zfs_modldrv, 6114219089Spjd NULL 6115219089Spjd}; 6116219089Spjd#endif /* sun */ 6117219089Spjd 6118168404Spjdstatic struct cdevsw zfs_cdevsw = { 6119168404Spjd .d_version = D_VERSION, 6120219089Spjd .d_open = zfsdev_open, 6121168404Spjd .d_ioctl = zfsdev_ioctl, 6122168404Spjd .d_name = ZFS_DEV_NAME 6123168404Spjd}; 6124168404Spjd 6125168404Spjdstatic void 6126248571Smmzfs_allow_log_destroy(void *arg) 6127248571Smm{ 6128248571Smm char *poolname = arg; 6129248571Smm strfree(poolname); 6130248571Smm} 6131248571Smm 6132248571Smmstatic void 6133168404Spjdzfsdev_init(void) 6134168404Spjd{ 6135185029Spjd zfsdev = make_dev(&zfs_cdevsw, 0x0, UID_ROOT, GID_OPERATOR, 0666, 6136168404Spjd ZFS_DEV_NAME); 6137168404Spjd} 6138168404Spjd 6139168404Spjdstatic void 6140168404Spjdzfsdev_fini(void) 6141168404Spjd{ 6142168404Spjd if (zfsdev != NULL) 6143168404Spjd destroy_dev(zfsdev); 6144168404Spjd} 6145168404Spjd 6146169929Spjdstatic struct root_hold_token *zfs_root_token; 6147196458Spjdstruct proc *zfsproc; 6148168404Spjd 6149219089Spjd#ifdef sun 6150219089Spjdint 6151219089Spjd_init(void) 6152219089Spjd{ 6153219089Spjd int error; 6154219089Spjd 6155219089Spjd spa_init(FREAD | FWRITE); 6156219089Spjd zfs_init(); 6157219089Spjd zvol_init(); 6158248571Smm zfs_ioctl_init(); 6159219089Spjd 6160219089Spjd if ((error = mod_install(&modlinkage)) != 0) { 6161219089Spjd zvol_fini(); 6162219089Spjd zfs_fini(); 6163219089Spjd spa_fini(); 6164219089Spjd return (error); 6165219089Spjd } 6166219089Spjd 6167219089Spjd tsd_create(&zfs_fsyncer_key, NULL); 6168248571Smm tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 6169248571Smm tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 6170219089Spjd 6171219089Spjd error = ldi_ident_from_mod(&modlinkage, &zfs_li); 6172219089Spjd ASSERT(error == 0); 6173219089Spjd mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 6174219089Spjd 6175219089Spjd return (0); 6176219089Spjd} 6177219089Spjd 6178219089Spjdint 6179219089Spjd_fini(void) 6180219089Spjd{ 6181219089Spjd int error; 6182219089Spjd 6183219089Spjd if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 6184249195Smm return (SET_ERROR(EBUSY)); 6185219089Spjd 6186219089Spjd if ((error = mod_remove(&modlinkage)) != 0) 6187219089Spjd return (error); 6188219089Spjd 6189219089Spjd zvol_fini(); 6190219089Spjd zfs_fini(); 6191219089Spjd spa_fini(); 6192219089Spjd if (zfs_nfsshare_inited) 6193219089Spjd (void) ddi_modclose(nfs_mod); 6194219089Spjd if (zfs_smbshare_inited) 6195219089Spjd (void) ddi_modclose(smbsrv_mod); 6196219089Spjd if (zfs_nfsshare_inited || zfs_smbshare_inited) 6197219089Spjd (void) ddi_modclose(sharefs_mod); 6198219089Spjd 6199219089Spjd tsd_destroy(&zfs_fsyncer_key); 6200219089Spjd ldi_ident_release(zfs_li); 6201219089Spjd zfs_li = NULL; 6202219089Spjd mutex_destroy(&zfs_share_lock); 6203219089Spjd 6204219089Spjd return (error); 6205219089Spjd} 6206219089Spjd 6207219089Spjdint 6208219089Spjd_info(struct modinfo *modinfop) 6209219089Spjd{ 6210219089Spjd return (mod_info(&modlinkage, modinfop)); 6211219089Spjd} 6212219089Spjd#endif /* sun */ 6213219089Spjd 6214253606Savgstatic int zfs__init(void); 6215253606Savgstatic int zfs__fini(void); 6216253606Savgstatic void zfs_shutdown(void *, int); 6217253606Savg 6218253606Savgstatic eventhandler_tag zfs_shutdown_event_tag; 6219253606Savg 6220253606Savgint 6221253606Savgzfs__init(void) 6222168404Spjd{ 6223168404Spjd 6224253606Savg zfs_root_token = root_mount_hold("ZFS"); 6225196291Spjd 6226253606Savg mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 6227196291Spjd 6228253606Savg spa_init(FREAD | FWRITE); 6229253606Savg zfs_init(); 6230253606Savg zvol_init(); 6231253606Savg zfs_ioctl_init(); 6232196291Spjd 6233253606Savg tsd_create(&zfs_fsyncer_key, NULL); 6234253606Savg tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 6235253606Savg tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 6236196291Spjd 6237253606Savg printf("ZFS storage pool version: features support (" SPA_VERSION_STRING ")\n"); 6238253606Savg root_mount_rel(zfs_root_token); 6239196291Spjd 6240253606Savg zfsdev_init(); 6241196291Spjd 6242253606Savg return (0); 6243253606Savg} 6244196291Spjd 6245253606Savgint 6246253606Savgzfs__fini(void) 6247253606Savg{ 6248253606Savg if (spa_busy() || zfs_busy() || zvol_busy() || 6249253606Savg zio_injection_enabled) { 6250253606Savg return (EBUSY); 6251253606Savg } 6252196291Spjd 6253253606Savg zfsdev_fini(); 6254253606Savg zvol_fini(); 6255253606Savg zfs_fini(); 6256253606Savg spa_fini(); 6257253606Savg 6258253606Savg tsd_destroy(&zfs_fsyncer_key); 6259253606Savg tsd_destroy(&rrw_tsd_key); 6260253606Savg tsd_destroy(&zfs_allow_log_key); 6261253606Savg 6262253606Savg mutex_destroy(&zfs_share_lock); 6263253606Savg 6264253606Savg return (0); 6265253606Savg} 6266253606Savg 6267253606Savgstatic void 6268253606Savgzfs_shutdown(void *arg __unused, int howto __unused) 6269253606Savg{ 6270253606Savg 6271253606Savg /* 6272253606Savg * ZFS fini routines can not properly work in a panic-ed system. 6273253606Savg */ 6274253606Savg if (panicstr == NULL) 6275253606Savg (void)zfs__fini(); 6276253606Savg} 6277253606Savg 6278253606Savg 6279253606Savgstatic int 6280253606Savgzfs_modevent(module_t mod, int type, void *unused __unused) 6281253606Savg{ 6282253606Savg int err; 6283253606Savg 6284253606Savg switch (type) { 6285253606Savg case MOD_LOAD: 6286253606Savg err = zfs__init(); 6287253606Savg if (err == 0) 6288253606Savg zfs_shutdown_event_tag = EVENTHANDLER_REGISTER( 6289253606Savg shutdown_post_sync, zfs_shutdown, NULL, 6290253606Savg SHUTDOWN_PRI_FIRST); 6291253606Savg return (err); 6292253606Savg case MOD_UNLOAD: 6293253606Savg err = zfs__fini(); 6294253606Savg if (err == 0 && zfs_shutdown_event_tag != NULL) 6295253606Savg EVENTHANDLER_DEREGISTER(shutdown_post_sync, 6296253606Savg zfs_shutdown_event_tag); 6297253606Savg return (err); 6298253606Savg case MOD_SHUTDOWN: 6299253606Savg return (0); 6300196291Spjd default: 6301196291Spjd break; 6302168404Spjd } 6303253606Savg return (EOPNOTSUPP); 6304168404Spjd} 6305168404Spjd 6306168404Spjdstatic moduledata_t zfs_mod = { 6307168404Spjd "zfsctrl", 6308168404Spjd zfs_modevent, 6309241394Skevlo 0 6310168404Spjd}; 6311169929SpjdDECLARE_MODULE(zfsctrl, zfs_mod, SI_SUB_VFS, SI_ORDER_ANY); 6312246242SavgMODULE_VERSION(zfsctrl, 1); 6313179280SjbMODULE_DEPEND(zfsctrl, opensolaris, 1, 1, 1); 6314193128SkmacyMODULE_DEPEND(zfsctrl, krpc, 1, 1, 1); 6315232938SadrianMODULE_DEPEND(zfsctrl, acl_nfs4, 1, 1, 1); 6316