zfs_ioctl.c revision 264341
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> 184260183Sdelphij#include <sys/dsl_bookmark.h> 185248571Smm#include <sys/dsl_userhold.h> 186246586Sdelphij#include <sys/zfeature.h> 187168404Spjd 188168404Spjd#include "zfs_namecheck.h" 189168404Spjd#include "zfs_prop.h" 190185029Spjd#include "zfs_deleg.h" 191219089Spjd#include "zfs_comutil.h" 192219089Spjd#include "zfs_ioctl_compat.h" 193168404Spjd 194219089SpjdCTASSERT(sizeof(zfs_cmd_t) < IOCPARM_MAX); 195168404Spjd 196230397Spjdstatic int snapshot_list_prefetch; 197230397SpjdSYSCTL_DECL(_vfs_zfs); 198230397SpjdTUNABLE_INT("vfs.zfs.snapshot_list_prefetch", &snapshot_list_prefetch); 199230397SpjdSYSCTL_INT(_vfs_zfs, OID_AUTO, snapshot_list_prefetch, CTLFLAG_RW, 200230397Spjd &snapshot_list_prefetch, 0, "Prefetch data when listing snapshots"); 201230397Spjd 202168404Spjdstatic struct cdev *zfsdev; 203168404Spjd 204168404Spjdextern void zfs_init(void); 205168404Spjdextern void zfs_fini(void); 206168404Spjd 207248571Smmuint_t zfs_fsyncer_key; 208248571Smmextern uint_t rrw_tsd_key; 209248571Smmstatic uint_t zfs_allow_log_key; 210168404Spjd 211248571Smmtypedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); 212248571Smmtypedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); 213248571Smmtypedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); 214248571Smm 215209962Smmtypedef enum { 216209962Smm NO_NAME, 217209962Smm POOL_NAME, 218209962Smm DATASET_NAME 219209962Smm} zfs_ioc_namecheck_t; 220209962Smm 221246688Smmtypedef enum { 222246688Smm POOL_CHECK_NONE = 1 << 0, 223246688Smm POOL_CHECK_SUSPENDED = 1 << 1, 224248571Smm POOL_CHECK_READONLY = 1 << 2, 225246688Smm} zfs_ioc_poolcheck_t; 226246688Smm 227168404Spjdtypedef struct zfs_ioc_vec { 228248571Smm zfs_ioc_legacy_func_t *zvec_legacy_func; 229168404Spjd zfs_ioc_func_t *zvec_func; 230168404Spjd zfs_secpolicy_func_t *zvec_secpolicy; 231209962Smm zfs_ioc_namecheck_t zvec_namecheck; 232248571Smm boolean_t zvec_allow_log; 233246688Smm zfs_ioc_poolcheck_t zvec_pool_check; 234248571Smm boolean_t zvec_smush_outnvlist; 235248571Smm const char *zvec_name; 236168404Spjd} zfs_ioc_vec_t; 237168404Spjd 238209962Smm/* This array is indexed by zfs_userquota_prop_t */ 239209962Smmstatic const char *userquota_perms[] = { 240209962Smm ZFS_DELEG_PERM_USERUSED, 241209962Smm ZFS_DELEG_PERM_USERQUOTA, 242209962Smm ZFS_DELEG_PERM_GROUPUSED, 243209962Smm ZFS_DELEG_PERM_GROUPQUOTA, 244209962Smm}; 245209962Smm 246209962Smmstatic int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); 247219089Spjdstatic int zfs_check_settable(const char *name, nvpair_t *property, 248219089Spjd cred_t *cr); 249219089Spjdstatic int zfs_check_clearable(char *dataset, nvlist_t *props, 250219089Spjd nvlist_t **errors); 251185029Spjdstatic int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, 252185029Spjd boolean_t *); 253248571Smmint zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); 254248571Smmstatic int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); 255219089Spjd 256219089Spjdstatic void zfsdev_close(void *data); 257185029Spjd 258259813Sdelphijstatic int zfs_prop_activate_feature(spa_t *spa, spa_feature_t feature); 259246586Sdelphij 260168404Spjd/* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 261168404Spjdvoid 262168404Spjd__dprintf(const char *file, const char *func, int line, const char *fmt, ...) 263168404Spjd{ 264168404Spjd const char *newfile; 265219089Spjd char buf[512]; 266168404Spjd va_list adx; 267168404Spjd 268168404Spjd /* 269168404Spjd * Get rid of annoying "../common/" prefix to filename. 270168404Spjd */ 271168404Spjd newfile = strrchr(file, '/'); 272168404Spjd if (newfile != NULL) { 273168404Spjd newfile = newfile + 1; /* Get rid of leading / */ 274168404Spjd } else { 275168404Spjd newfile = file; 276168404Spjd } 277168404Spjd 278168404Spjd va_start(adx, fmt); 279168404Spjd (void) vsnprintf(buf, sizeof (buf), fmt, adx); 280168404Spjd va_end(adx); 281168404Spjd 282168404Spjd /* 283168404Spjd * To get this data, use the zfs-dprintf probe as so: 284168404Spjd * dtrace -q -n 'zfs-dprintf \ 285168404Spjd * /stringof(arg0) == "dbuf.c"/ \ 286168404Spjd * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 287168404Spjd * arg0 = file name 288168404Spjd * arg1 = function name 289168404Spjd * arg2 = line number 290168404Spjd * arg3 = message 291168404Spjd */ 292168404Spjd DTRACE_PROBE4(zfs__dprintf, 293168404Spjd char *, newfile, char *, func, int, line, char *, buf); 294168404Spjd} 295168404Spjd 296185029Spjdstatic void 297185029Spjdhistory_str_free(char *buf) 298185029Spjd{ 299185029Spjd kmem_free(buf, HIS_MAX_RECORD_LEN); 300185029Spjd} 301185029Spjd 302185029Spjdstatic char * 303185029Spjdhistory_str_get(zfs_cmd_t *zc) 304185029Spjd{ 305185029Spjd char *buf; 306185029Spjd 307185029Spjd if (zc->zc_history == 0) 308185029Spjd return (NULL); 309185029Spjd 310185029Spjd buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); 311185029Spjd if (copyinstr((void *)(uintptr_t)zc->zc_history, 312185029Spjd buf, HIS_MAX_RECORD_LEN, NULL) != 0) { 313185029Spjd history_str_free(buf); 314185029Spjd return (NULL); 315185029Spjd } 316185029Spjd 317185029Spjd buf[HIS_MAX_RECORD_LEN -1] = '\0'; 318185029Spjd 319185029Spjd return (buf); 320185029Spjd} 321185029Spjd 322168404Spjd/* 323185029Spjd * Check to see if the named dataset is currently defined as bootable 324185029Spjd */ 325185029Spjdstatic boolean_t 326185029Spjdzfs_is_bootfs(const char *name) 327185029Spjd{ 328219089Spjd objset_t *os; 329185029Spjd 330219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 331219089Spjd boolean_t ret; 332219089Spjd ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); 333219089Spjd dmu_objset_rele(os, FTAG); 334219089Spjd return (ret); 335185029Spjd } 336219089Spjd return (B_FALSE); 337185029Spjd} 338185029Spjd 339185029Spjd/* 340251631Sdelphij * Return non-zero if the spa version is less than requested version. 341185029Spjd */ 342185029Spjdstatic int 343185029Spjdzfs_earlier_version(const char *name, int version) 344185029Spjd{ 345185029Spjd spa_t *spa; 346185029Spjd 347185029Spjd if (spa_open(name, &spa, FTAG) == 0) { 348185029Spjd if (spa_version(spa) < version) { 349185029Spjd spa_close(spa, FTAG); 350185029Spjd return (1); 351185029Spjd } 352185029Spjd spa_close(spa, FTAG); 353185029Spjd } 354185029Spjd return (0); 355185029Spjd} 356185029Spjd 357185029Spjd/* 358185029Spjd * Return TRUE if the ZPL version is less than requested version. 359185029Spjd */ 360185029Spjdstatic boolean_t 361185029Spjdzpl_earlier_version(const char *name, int version) 362185029Spjd{ 363185029Spjd objset_t *os; 364185029Spjd boolean_t rc = B_TRUE; 365185029Spjd 366219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 367185029Spjd uint64_t zplversion; 368185029Spjd 369219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 370219089Spjd dmu_objset_rele(os, FTAG); 371219089Spjd return (B_TRUE); 372219089Spjd } 373219089Spjd /* XXX reading from non-owned objset */ 374185029Spjd if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) 375185029Spjd rc = zplversion < version; 376219089Spjd dmu_objset_rele(os, FTAG); 377185029Spjd } 378185029Spjd return (rc); 379185029Spjd} 380185029Spjd 381185029Spjdstatic void 382185029Spjdzfs_log_history(zfs_cmd_t *zc) 383185029Spjd{ 384185029Spjd spa_t *spa; 385185029Spjd char *buf; 386185029Spjd 387185029Spjd if ((buf = history_str_get(zc)) == NULL) 388185029Spjd return; 389185029Spjd 390185029Spjd if (spa_open(zc->zc_name, &spa, FTAG) == 0) { 391185029Spjd if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) 392248571Smm (void) spa_history_log(spa, buf); 393185029Spjd spa_close(spa, FTAG); 394185029Spjd } 395185029Spjd history_str_free(buf); 396185029Spjd} 397185029Spjd 398185029Spjd/* 399168404Spjd * Policy for top-level read operations (list pools). Requires no privileges, 400168404Spjd * and can be used in the local zone, as there is no associated dataset. 401168404Spjd */ 402168404Spjd/* ARGSUSED */ 403168404Spjdstatic int 404248571Smmzfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 405168404Spjd{ 406168404Spjd return (0); 407168404Spjd} 408168404Spjd 409168404Spjd/* 410168404Spjd * Policy for dataset read operations (list children, get statistics). Requires 411168404Spjd * no privileges, but must be visible in the local zone. 412168404Spjd */ 413168404Spjd/* ARGSUSED */ 414168404Spjdstatic int 415248571Smmzfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 416168404Spjd{ 417185029Spjd if (INGLOBALZONE(curthread) || 418185029Spjd zone_dataset_visible(zc->zc_name, NULL)) 419168404Spjd return (0); 420168404Spjd 421249195Smm return (SET_ERROR(ENOENT)); 422168404Spjd} 423168404Spjd 424168404Spjdstatic int 425219089Spjdzfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) 426168404Spjd{ 427168404Spjd int writable = 1; 428168404Spjd 429168404Spjd /* 430168404Spjd * The dataset must be visible by this zone -- check this first 431168404Spjd * so they don't see EPERM on something they shouldn't know about. 432168404Spjd */ 433185029Spjd if (!INGLOBALZONE(curthread) && 434168404Spjd !zone_dataset_visible(dataset, &writable)) 435249195Smm return (SET_ERROR(ENOENT)); 436168404Spjd 437185029Spjd if (INGLOBALZONE(curthread)) { 438168404Spjd /* 439168404Spjd * If the fs is zoned, only root can access it from the 440168404Spjd * global zone. 441168404Spjd */ 442168404Spjd if (secpolicy_zfs(cr) && zoned) 443249195Smm return (SET_ERROR(EPERM)); 444168404Spjd } else { 445168404Spjd /* 446168404Spjd * If we are in a local zone, the 'zoned' property must be set. 447168404Spjd */ 448168404Spjd if (!zoned) 449249195Smm return (SET_ERROR(EPERM)); 450168404Spjd 451168404Spjd /* must be writable by this zone */ 452168404Spjd if (!writable) 453249195Smm return (SET_ERROR(EPERM)); 454168404Spjd } 455168404Spjd return (0); 456168404Spjd} 457168404Spjd 458219089Spjdstatic int 459219089Spjdzfs_dozonecheck(const char *dataset, cred_t *cr) 460219089Spjd{ 461219089Spjd uint64_t zoned; 462219089Spjd 463219089Spjd if (dsl_prop_get_integer(dataset, "jailed", &zoned, NULL)) 464249195Smm return (SET_ERROR(ENOENT)); 465219089Spjd 466219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 467219089Spjd} 468219089Spjd 469219089Spjdstatic int 470219089Spjdzfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) 471219089Spjd{ 472219089Spjd uint64_t zoned; 473219089Spjd 474248571Smm if (dsl_prop_get_int_ds(ds, "jailed", &zoned)) 475249195Smm return (SET_ERROR(ENOENT)); 476219089Spjd 477219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 478219089Spjd} 479219089Spjd 480248571Smmstatic int 481248571Smmzfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, 482248571Smm const char *perm, cred_t *cr) 483168404Spjd{ 484168404Spjd int error; 485168404Spjd 486228103Smm error = zfs_dozonecheck_ds(name, ds, cr); 487185029Spjd if (error == 0) { 488185029Spjd error = secpolicy_zfs(cr); 489248571Smm if (error != 0) 490248571Smm error = dsl_deleg_access_impl(ds, perm, cr); 491185029Spjd } 492185029Spjd return (error); 493185029Spjd} 494185029Spjd 495248571Smmstatic int 496248571Smmzfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) 497219089Spjd{ 498219089Spjd int error; 499248571Smm dsl_dataset_t *ds; 500248571Smm dsl_pool_t *dp; 501219089Spjd 502248571Smm error = dsl_pool_hold(name, FTAG, &dp); 503248571Smm if (error != 0) 504248571Smm return (error); 505248571Smm 506248571Smm error = dsl_dataset_hold(dp, name, FTAG, &ds); 507248571Smm if (error != 0) { 508248571Smm dsl_pool_rele(dp, FTAG); 509248571Smm return (error); 510219089Spjd } 511248571Smm 512248571Smm error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); 513248571Smm 514248571Smm dsl_dataset_rele(ds, FTAG); 515248571Smm dsl_pool_rele(dp, FTAG); 516219089Spjd return (error); 517219089Spjd} 518219089Spjd 519219089Spjd#ifdef SECLABEL 520219089Spjd/* 521219089Spjd * Policy for setting the security label property. 522219089Spjd * 523219089Spjd * Returns 0 for success, non-zero for access and other errors. 524219089Spjd */ 525185029Spjdstatic int 526219089Spjdzfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) 527185029Spjd{ 528219089Spjd char ds_hexsl[MAXNAMELEN]; 529219089Spjd bslabel_t ds_sl, new_sl; 530219089Spjd boolean_t new_default = FALSE; 531219089Spjd uint64_t zoned; 532219089Spjd int needed_priv = -1; 533219089Spjd int error; 534219089Spjd 535219089Spjd /* First get the existing dataset label. */ 536219089Spjd error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), 537219089Spjd 1, sizeof (ds_hexsl), &ds_hexsl, NULL); 538248571Smm if (error != 0) 539249195Smm return (SET_ERROR(EPERM)); 540219089Spjd 541219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 542219089Spjd new_default = TRUE; 543219089Spjd 544219089Spjd /* The label must be translatable */ 545219089Spjd if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) 546249195Smm return (SET_ERROR(EINVAL)); 547219089Spjd 548185029Spjd /* 549219089Spjd * In a non-global zone, disallow attempts to set a label that 550219089Spjd * doesn't match that of the zone; otherwise no other checks 551219089Spjd * are needed. 552219089Spjd */ 553219089Spjd if (!INGLOBALZONE(curproc)) { 554219089Spjd if (new_default || !blequal(&new_sl, CR_SL(CRED()))) 555249195Smm return (SET_ERROR(EPERM)); 556219089Spjd return (0); 557219089Spjd } 558219089Spjd 559219089Spjd /* 560219089Spjd * For global-zone datasets (i.e., those whose zoned property is 561219089Spjd * "off", verify that the specified new label is valid for the 562219089Spjd * global zone. 563219089Spjd */ 564219089Spjd if (dsl_prop_get_integer(name, 565219089Spjd zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) 566249195Smm return (SET_ERROR(EPERM)); 567219089Spjd if (!zoned) { 568219089Spjd if (zfs_check_global_label(name, strval) != 0) 569249195Smm return (SET_ERROR(EPERM)); 570219089Spjd } 571219089Spjd 572219089Spjd /* 573219089Spjd * If the existing dataset label is nondefault, check if the 574219089Spjd * dataset is mounted (label cannot be changed while mounted). 575219089Spjd * Get the zfsvfs; if there isn't one, then the dataset isn't 576219089Spjd * mounted (or isn't a dataset, doesn't exist, ...). 577219089Spjd */ 578219089Spjd if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { 579219089Spjd objset_t *os; 580219089Spjd static char *setsl_tag = "setsl_tag"; 581219089Spjd 582219089Spjd /* 583219089Spjd * Try to own the dataset; abort if there is any error, 584219089Spjd * (e.g., already mounted, in use, or other error). 585219089Spjd */ 586219089Spjd error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, 587219089Spjd setsl_tag, &os); 588248571Smm if (error != 0) 589249195Smm return (SET_ERROR(EPERM)); 590219089Spjd 591219089Spjd dmu_objset_disown(os, setsl_tag); 592219089Spjd 593219089Spjd if (new_default) { 594219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 595219089Spjd goto out_check; 596219089Spjd } 597219089Spjd 598219089Spjd if (hexstr_to_label(strval, &new_sl) != 0) 599249195Smm return (SET_ERROR(EPERM)); 600219089Spjd 601219089Spjd if (blstrictdom(&ds_sl, &new_sl)) 602219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 603219089Spjd else if (blstrictdom(&new_sl, &ds_sl)) 604219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 605219089Spjd } else { 606219089Spjd /* dataset currently has a default label */ 607219089Spjd if (!new_default) 608219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 609219089Spjd } 610219089Spjd 611219089Spjdout_check: 612219089Spjd if (needed_priv != -1) 613219089Spjd return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); 614219089Spjd return (0); 615219089Spjd} 616219089Spjd#endif /* SECLABEL */ 617219089Spjd 618219089Spjdstatic int 619219089Spjdzfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, 620219089Spjd cred_t *cr) 621219089Spjd{ 622219089Spjd char *strval; 623219089Spjd 624219089Spjd /* 625185029Spjd * Check permissions for special properties. 626185029Spjd */ 627185029Spjd switch (prop) { 628185029Spjd case ZFS_PROP_ZONED: 629185029Spjd /* 630185029Spjd * Disallow setting of 'zoned' from within a local zone. 631185029Spjd */ 632185029Spjd if (!INGLOBALZONE(curthread)) 633249195Smm return (SET_ERROR(EPERM)); 634185029Spjd break; 635185029Spjd 636185029Spjd case ZFS_PROP_QUOTA: 637185029Spjd if (!INGLOBALZONE(curthread)) { 638185029Spjd uint64_t zoned; 639185029Spjd char setpoint[MAXNAMELEN]; 640185029Spjd /* 641185029Spjd * Unprivileged users are allowed to modify the 642185029Spjd * quota on things *under* (ie. contained by) 643185029Spjd * the thing they own. 644185029Spjd */ 645219089Spjd if (dsl_prop_get_integer(dsname, "jailed", &zoned, 646185029Spjd setpoint)) 647249195Smm return (SET_ERROR(EPERM)); 648219089Spjd if (!zoned || strlen(dsname) <= strlen(setpoint)) 649249195Smm return (SET_ERROR(EPERM)); 650185029Spjd } 651185029Spjd break; 652219089Spjd 653219089Spjd case ZFS_PROP_MLSLABEL: 654219089Spjd#ifdef SECLABEL 655219089Spjd if (!is_system_labeled()) 656249195Smm return (SET_ERROR(EPERM)); 657219089Spjd 658219089Spjd if (nvpair_value_string(propval, &strval) == 0) { 659219089Spjd int err; 660219089Spjd 661219089Spjd err = zfs_set_slabel_policy(dsname, strval, CRED()); 662219089Spjd if (err != 0) 663219089Spjd return (err); 664219089Spjd } 665219089Spjd#else 666219089Spjd return (EOPNOTSUPP); 667219089Spjd#endif 668219089Spjd break; 669185029Spjd } 670185029Spjd 671219089Spjd return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); 672185029Spjd} 673185029Spjd 674248571Smm/* ARGSUSED */ 675248571Smmstatic int 676248571Smmzfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 677185029Spjd{ 678185029Spjd int error; 679185029Spjd 680185029Spjd error = zfs_dozonecheck(zc->zc_name, cr); 681248571Smm if (error != 0) 682168404Spjd return (error); 683168404Spjd 684185029Spjd /* 685185029Spjd * permission to set permissions will be evaluated later in 686185029Spjd * dsl_deleg_can_allow() 687185029Spjd */ 688185029Spjd return (0); 689168404Spjd} 690168404Spjd 691248571Smm/* ARGSUSED */ 692248571Smmstatic int 693248571Smmzfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 694185029Spjd{ 695219089Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 696219089Spjd ZFS_DELEG_PERM_ROLLBACK, cr)); 697185029Spjd} 698185029Spjd 699248571Smm/* ARGSUSED */ 700248571Smmstatic int 701248571Smmzfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 702185029Spjd{ 703219089Spjd dsl_pool_t *dp; 704219089Spjd dsl_dataset_t *ds; 705219089Spjd char *cp; 706219089Spjd int error; 707219089Spjd 708219089Spjd /* 709219089Spjd * Generate the current snapshot name from the given objsetid, then 710219089Spjd * use that name for the secpolicy/zone checks. 711219089Spjd */ 712219089Spjd cp = strchr(zc->zc_name, '@'); 713219089Spjd if (cp == NULL) 714249195Smm return (SET_ERROR(EINVAL)); 715248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 716248571Smm if (error != 0) 717219089Spjd return (error); 718219089Spjd 719219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); 720248571Smm if (error != 0) { 721248571Smm dsl_pool_rele(dp, FTAG); 722219089Spjd return (error); 723248571Smm } 724219089Spjd 725219089Spjd dsl_dataset_name(ds, zc->zc_name); 726219089Spjd 727219089Spjd error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, 728219089Spjd ZFS_DELEG_PERM_SEND, cr); 729219089Spjd dsl_dataset_rele(ds, FTAG); 730248571Smm dsl_pool_rele(dp, FTAG); 731219089Spjd 732219089Spjd return (error); 733185029Spjd} 734185029Spjd 735248571Smm/* ARGSUSED */ 736209962Smmstatic int 737248571Smmzfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 738209962Smm{ 739248571Smm return (zfs_secpolicy_write_perms(zc->zc_name, 740248571Smm ZFS_DELEG_PERM_SEND, cr)); 741248571Smm} 742248571Smm 743248571Smm/* ARGSUSED */ 744248571Smmstatic int 745248571Smmzfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 746248571Smm{ 747209962Smm vnode_t *vp; 748209962Smm int error; 749209962Smm 750209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 751209962Smm NO_FOLLOW, NULL, &vp)) != 0) 752209962Smm return (error); 753209962Smm 754209962Smm /* Now make sure mntpnt and dataset are ZFS */ 755209962Smm 756209962Smm if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 757209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 758209962Smm zc->zc_name) != 0)) { 759209962Smm VN_RELE(vp); 760249195Smm return (SET_ERROR(EPERM)); 761209962Smm } 762209962Smm 763209962Smm VN_RELE(vp); 764209962Smm return (dsl_deleg_access(zc->zc_name, 765209962Smm ZFS_DELEG_PERM_SHARE, cr)); 766209962Smm} 767209962Smm 768185029Spjdint 769248571Smmzfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 770185029Spjd{ 771185029Spjd if (!INGLOBALZONE(curthread)) 772249195Smm return (SET_ERROR(EPERM)); 773185029Spjd 774185029Spjd if (secpolicy_nfs(cr) == 0) { 775185029Spjd return (0); 776185029Spjd } else { 777248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 778209962Smm } 779209962Smm} 780185029Spjd 781209962Smmint 782248571Smmzfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 783209962Smm{ 784209962Smm if (!INGLOBALZONE(curthread)) 785249195Smm return (SET_ERROR(EPERM)); 786185029Spjd 787209962Smm if (secpolicy_smb(cr) == 0) { 788209962Smm return (0); 789209962Smm } else { 790248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 791185029Spjd } 792185029Spjd} 793185029Spjd 794168404Spjdstatic int 795185029Spjdzfs_get_parent(const char *datasetname, char *parent, int parentsize) 796168404Spjd{ 797168404Spjd char *cp; 798168404Spjd 799168404Spjd /* 800168404Spjd * Remove the @bla or /bla from the end of the name to get the parent. 801168404Spjd */ 802185029Spjd (void) strncpy(parent, datasetname, parentsize); 803185029Spjd cp = strrchr(parent, '@'); 804168404Spjd if (cp != NULL) { 805168404Spjd cp[0] = '\0'; 806168404Spjd } else { 807185029Spjd cp = strrchr(parent, '/'); 808168404Spjd if (cp == NULL) 809249195Smm return (SET_ERROR(ENOENT)); 810168404Spjd cp[0] = '\0'; 811185029Spjd } 812168404Spjd 813185029Spjd return (0); 814185029Spjd} 815185029Spjd 816185029Spjdint 817185029Spjdzfs_secpolicy_destroy_perms(const char *name, cred_t *cr) 818185029Spjd{ 819185029Spjd int error; 820185029Spjd 821185029Spjd if ((error = zfs_secpolicy_write_perms(name, 822185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 823185029Spjd return (error); 824185029Spjd 825185029Spjd return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); 826185029Spjd} 827185029Spjd 828248571Smm/* ARGSUSED */ 829185029Spjdstatic int 830248571Smmzfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 831185029Spjd{ 832185029Spjd return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); 833185029Spjd} 834185029Spjd 835185029Spjd/* 836219089Spjd * Destroying snapshots with delegated permissions requires 837248571Smm * descendant mount and destroy permissions. 838185029Spjd */ 839248571Smm/* ARGSUSED */ 840185029Spjdstatic int 841248571Smmzfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 842185029Spjd{ 843248571Smm nvlist_t *snaps; 844248571Smm nvpair_t *pair, *nextpair; 845248571Smm int error = 0; 846219089Spjd 847248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 848249195Smm return (SET_ERROR(EINVAL)); 849248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 850248571Smm pair = nextpair) { 851248571Smm nextpair = nvlist_next_nvpair(snaps, pair); 852260183Sdelphij error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); 853260183Sdelphij if (error == ENOENT) { 854248571Smm /* 855248571Smm * Ignore any snapshots that don't exist (we consider 856248571Smm * them "already destroyed"). Remove the name from the 857248571Smm * nvl here in case the snapshot is created between 858248571Smm * now and when we try to destroy it (in which case 859248571Smm * we don't want to destroy it since we haven't 860248571Smm * checked for permission). 861248571Smm */ 862248571Smm fnvlist_remove_nvpair(snaps, pair); 863248571Smm error = 0; 864248571Smm } 865248571Smm if (error != 0) 866248571Smm break; 867248571Smm } 868222050Smm 869219089Spjd return (error); 870185029Spjd} 871185029Spjd 872185029Spjdint 873185029Spjdzfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) 874185029Spjd{ 875219089Spjd char parentname[MAXNAMELEN]; 876185029Spjd int error; 877185029Spjd 878185029Spjd if ((error = zfs_secpolicy_write_perms(from, 879185029Spjd ZFS_DELEG_PERM_RENAME, cr)) != 0) 880185029Spjd return (error); 881185029Spjd 882185029Spjd if ((error = zfs_secpolicy_write_perms(from, 883185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 884185029Spjd return (error); 885185029Spjd 886185029Spjd if ((error = zfs_get_parent(to, parentname, 887185029Spjd sizeof (parentname))) != 0) 888185029Spjd return (error); 889185029Spjd 890185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 891185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 892185029Spjd return (error); 893185029Spjd 894185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 895185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 896185029Spjd return (error); 897185029Spjd 898185029Spjd return (error); 899185029Spjd} 900185029Spjd 901248571Smm/* ARGSUSED */ 902185029Spjdstatic int 903248571Smmzfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 904185029Spjd{ 905240870Spjd char *at = NULL; 906240870Spjd int error; 907240870Spjd 908240870Spjd if ((zc->zc_cookie & 1) != 0) { 909240870Spjd /* 910240870Spjd * This is recursive rename, so the starting snapshot might 911240870Spjd * not exist. Check file system or volume permission instead. 912240870Spjd */ 913240870Spjd at = strchr(zc->zc_name, '@'); 914240870Spjd if (at == NULL) 915240870Spjd return (EINVAL); 916240870Spjd *at = '\0'; 917240870Spjd } 918240870Spjd 919240870Spjd error = zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr); 920240870Spjd 921240870Spjd if (at != NULL) 922240870Spjd *at = '@'; 923240870Spjd 924240870Spjd return (error); 925185029Spjd} 926185029Spjd 927248571Smm/* ARGSUSED */ 928185029Spjdstatic int 929248571Smmzfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 930185029Spjd{ 931248571Smm dsl_pool_t *dp; 932248571Smm dsl_dataset_t *clone; 933185029Spjd int error; 934185029Spjd 935185029Spjd error = zfs_secpolicy_write_perms(zc->zc_name, 936185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 937248571Smm if (error != 0) 938185029Spjd return (error); 939185029Spjd 940248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 941248571Smm if (error != 0) 942248571Smm return (error); 943185029Spjd 944248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); 945248571Smm 946185029Spjd if (error == 0) { 947248571Smm char parentname[MAXNAMELEN]; 948248571Smm dsl_dataset_t *origin = NULL; 949185029Spjd dsl_dir_t *dd; 950248571Smm dd = clone->ds_dir; 951185029Spjd 952185029Spjd error = dsl_dataset_hold_obj(dd->dd_pool, 953248571Smm dd->dd_phys->dd_origin_obj, FTAG, &origin); 954248571Smm if (error != 0) { 955248571Smm dsl_dataset_rele(clone, FTAG); 956248571Smm dsl_pool_rele(dp, FTAG); 957185029Spjd return (error); 958185029Spjd } 959185029Spjd 960248571Smm error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, 961185029Spjd ZFS_DELEG_PERM_MOUNT, cr); 962185029Spjd 963248571Smm dsl_dataset_name(origin, parentname); 964248571Smm if (error == 0) { 965248571Smm error = zfs_secpolicy_write_perms_ds(parentname, origin, 966185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 967248571Smm } 968248571Smm dsl_dataset_rele(clone, FTAG); 969248571Smm dsl_dataset_rele(origin, FTAG); 970168404Spjd } 971248571Smm dsl_pool_rele(dp, FTAG); 972185029Spjd return (error); 973185029Spjd} 974168404Spjd 975248571Smm/* ARGSUSED */ 976185029Spjdstatic int 977248571Smmzfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 978185029Spjd{ 979185029Spjd int error; 980185029Spjd 981185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 982185029Spjd ZFS_DELEG_PERM_RECEIVE, cr)) != 0) 983185029Spjd return (error); 984185029Spjd 985185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 986185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 987185029Spjd return (error); 988185029Spjd 989185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 990185029Spjd ZFS_DELEG_PERM_CREATE, cr)); 991168404Spjd} 992168404Spjd 993185029Spjdint 994185029Spjdzfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) 995185029Spjd{ 996219089Spjd return (zfs_secpolicy_write_perms(name, 997219089Spjd ZFS_DELEG_PERM_SNAPSHOT, cr)); 998185029Spjd} 999185029Spjd 1000248571Smm/* 1001248571Smm * Check for permission to create each snapshot in the nvlist. 1002248571Smm */ 1003248571Smm/* ARGSUSED */ 1004185029Spjdstatic int 1005248571Smmzfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1006185029Spjd{ 1007248571Smm nvlist_t *snaps; 1008248571Smm int error; 1009248571Smm nvpair_t *pair; 1010185029Spjd 1011248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 1012249195Smm return (SET_ERROR(EINVAL)); 1013248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 1014248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 1015248571Smm char *name = nvpair_name(pair); 1016248571Smm char *atp = strchr(name, '@'); 1017248571Smm 1018248571Smm if (atp == NULL) { 1019249195Smm error = SET_ERROR(EINVAL); 1020248571Smm break; 1021248571Smm } 1022248571Smm *atp = '\0'; 1023248571Smm error = zfs_secpolicy_snapshot_perms(name, cr); 1024248571Smm *atp = '@'; 1025248571Smm if (error != 0) 1026248571Smm break; 1027248571Smm } 1028248571Smm return (error); 1029185029Spjd} 1030185029Spjd 1031260183Sdelphij/* 1032260183Sdelphij * Check for permission to create each snapshot in the nvlist. 1033260183Sdelphij */ 1034248571Smm/* ARGSUSED */ 1035185029Spjdstatic int 1036260183Sdelphijzfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1037260183Sdelphij{ 1038260183Sdelphij int error = 0; 1039260183Sdelphij 1040260183Sdelphij for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); 1041260183Sdelphij pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { 1042260183Sdelphij char *name = nvpair_name(pair); 1043260183Sdelphij char *hashp = strchr(name, '#'); 1044260183Sdelphij 1045260183Sdelphij if (hashp == NULL) { 1046260183Sdelphij error = SET_ERROR(EINVAL); 1047260183Sdelphij break; 1048260183Sdelphij } 1049260183Sdelphij *hashp = '\0'; 1050260183Sdelphij error = zfs_secpolicy_write_perms(name, 1051260183Sdelphij ZFS_DELEG_PERM_BOOKMARK, cr); 1052260183Sdelphij *hashp = '#'; 1053260183Sdelphij if (error != 0) 1054260183Sdelphij break; 1055260183Sdelphij } 1056260183Sdelphij return (error); 1057260183Sdelphij} 1058260183Sdelphij 1059260183Sdelphij/* ARGSUSED */ 1060260183Sdelphijstatic int 1061260183Sdelphijzfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1062260183Sdelphij{ 1063260183Sdelphij nvpair_t *pair, *nextpair; 1064260183Sdelphij int error = 0; 1065260183Sdelphij 1066260183Sdelphij for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; 1067260183Sdelphij pair = nextpair) { 1068260183Sdelphij char *name = nvpair_name(pair); 1069260183Sdelphij char *hashp = strchr(name, '#'); 1070260183Sdelphij nextpair = nvlist_next_nvpair(innvl, pair); 1071260183Sdelphij 1072260183Sdelphij if (hashp == NULL) { 1073260183Sdelphij error = SET_ERROR(EINVAL); 1074260183Sdelphij break; 1075260183Sdelphij } 1076260183Sdelphij 1077260183Sdelphij *hashp = '\0'; 1078260183Sdelphij error = zfs_secpolicy_write_perms(name, 1079260183Sdelphij ZFS_DELEG_PERM_DESTROY, cr); 1080260183Sdelphij *hashp = '#'; 1081260183Sdelphij if (error == ENOENT) { 1082260183Sdelphij /* 1083260183Sdelphij * Ignore any filesystems that don't exist (we consider 1084260183Sdelphij * their bookmarks "already destroyed"). Remove 1085260183Sdelphij * the name from the nvl here in case the filesystem 1086260183Sdelphij * is created between now and when we try to destroy 1087260183Sdelphij * the bookmark (in which case we don't want to 1088260183Sdelphij * destroy it since we haven't checked for permission). 1089260183Sdelphij */ 1090260183Sdelphij fnvlist_remove_nvpair(innvl, pair); 1091260183Sdelphij error = 0; 1092260183Sdelphij } 1093260183Sdelphij if (error != 0) 1094260183Sdelphij break; 1095260183Sdelphij } 1096260183Sdelphij 1097260183Sdelphij return (error); 1098260183Sdelphij} 1099260183Sdelphij 1100260183Sdelphij/* ARGSUSED */ 1101260183Sdelphijstatic int 1102248571Smmzfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1103185029Spjd{ 1104248571Smm /* 1105248571Smm * Even root must have a proper TSD so that we know what pool 1106248571Smm * to log to. 1107248571Smm */ 1108248571Smm if (tsd_get(zfs_allow_log_key) == NULL) 1109249195Smm return (SET_ERROR(EPERM)); 1110248571Smm return (0); 1111248571Smm} 1112248571Smm 1113248571Smmstatic int 1114248571Smmzfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1115248571Smm{ 1116219089Spjd char parentname[MAXNAMELEN]; 1117219089Spjd int error; 1118248571Smm char *origin; 1119185029Spjd 1120185029Spjd if ((error = zfs_get_parent(zc->zc_name, parentname, 1121185029Spjd sizeof (parentname))) != 0) 1122185029Spjd return (error); 1123185029Spjd 1124248571Smm if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && 1125248571Smm (error = zfs_secpolicy_write_perms(origin, 1126248571Smm ZFS_DELEG_PERM_CLONE, cr)) != 0) 1127248571Smm return (error); 1128185029Spjd 1129185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 1130185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 1131185029Spjd return (error); 1132185029Spjd 1133248571Smm return (zfs_secpolicy_write_perms(parentname, 1134248571Smm ZFS_DELEG_PERM_MOUNT, cr)); 1135185029Spjd} 1136185029Spjd 1137168404Spjd/* 1138168404Spjd * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 1139168404Spjd * SYS_CONFIG privilege, which is not available in a local zone. 1140168404Spjd */ 1141168404Spjd/* ARGSUSED */ 1142168404Spjdstatic int 1143248571Smmzfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1144168404Spjd{ 1145168404Spjd if (secpolicy_sys_config(cr, B_FALSE) != 0) 1146249195Smm return (SET_ERROR(EPERM)); 1147168404Spjd 1148168404Spjd return (0); 1149168404Spjd} 1150168404Spjd 1151168404Spjd/* 1152219089Spjd * Policy for object to name lookups. 1153185029Spjd */ 1154219089Spjd/* ARGSUSED */ 1155185029Spjdstatic int 1156248571Smmzfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1157185029Spjd{ 1158219089Spjd int error; 1159185029Spjd 1160219089Spjd if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) 1161219089Spjd return (0); 1162219089Spjd 1163219089Spjd error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); 1164219089Spjd return (error); 1165185029Spjd} 1166185029Spjd 1167185029Spjd/* 1168168404Spjd * Policy for fault injection. Requires all privileges. 1169168404Spjd */ 1170168404Spjd/* ARGSUSED */ 1171168404Spjdstatic int 1172248571Smmzfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1173168404Spjd{ 1174168404Spjd return (secpolicy_zinject(cr)); 1175168404Spjd} 1176168404Spjd 1177248571Smm/* ARGSUSED */ 1178185029Spjdstatic int 1179248571Smmzfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1180185029Spjd{ 1181185029Spjd zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); 1182185029Spjd 1183185029Spjd if (prop == ZPROP_INVAL) { 1184185029Spjd if (!zfs_prop_user(zc->zc_value)) 1185249195Smm return (SET_ERROR(EINVAL)); 1186185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1187185029Spjd ZFS_DELEG_PERM_USERPROP, cr)); 1188185029Spjd } else { 1189219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, prop, 1190219089Spjd NULL, cr)); 1191185029Spjd } 1192185029Spjd} 1193185029Spjd 1194168404Spjdstatic int 1195248571Smmzfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1196209962Smm{ 1197248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1198209962Smm if (err) 1199209962Smm return (err); 1200209962Smm 1201209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1202249195Smm return (SET_ERROR(EINVAL)); 1203209962Smm 1204209962Smm if (zc->zc_value[0] == 0) { 1205209962Smm /* 1206209962Smm * They are asking about a posix uid/gid. If it's 1207209962Smm * themself, allow it. 1208209962Smm */ 1209209962Smm if (zc->zc_objset_type == ZFS_PROP_USERUSED || 1210209962Smm zc->zc_objset_type == ZFS_PROP_USERQUOTA) { 1211209962Smm if (zc->zc_guid == crgetuid(cr)) 1212209962Smm return (0); 1213209962Smm } else { 1214209962Smm if (groupmember(zc->zc_guid, cr)) 1215209962Smm return (0); 1216209962Smm } 1217209962Smm } 1218209962Smm 1219209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1220209962Smm userquota_perms[zc->zc_objset_type], cr)); 1221209962Smm} 1222209962Smm 1223209962Smmstatic int 1224248571Smmzfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1225209962Smm{ 1226248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1227209962Smm if (err) 1228209962Smm return (err); 1229209962Smm 1230209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1231249195Smm return (SET_ERROR(EINVAL)); 1232209962Smm 1233209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1234209962Smm userquota_perms[zc->zc_objset_type], cr)); 1235209962Smm} 1236209962Smm 1237248571Smm/* ARGSUSED */ 1238209962Smmstatic int 1239248571Smmzfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1240209962Smm{ 1241219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, 1242219089Spjd NULL, cr)); 1243209962Smm} 1244209962Smm 1245248571Smm/* ARGSUSED */ 1246219089Spjdstatic int 1247248571Smmzfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1248219089Spjd{ 1249248571Smm nvpair_t *pair; 1250248571Smm nvlist_t *holds; 1251248571Smm int error; 1252248571Smm 1253248571Smm error = nvlist_lookup_nvlist(innvl, "holds", &holds); 1254248571Smm if (error != 0) 1255249195Smm return (SET_ERROR(EINVAL)); 1256248571Smm 1257248571Smm for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; 1258248571Smm pair = nvlist_next_nvpair(holds, pair)) { 1259248571Smm char fsname[MAXNAMELEN]; 1260248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1261248571Smm if (error != 0) 1262248571Smm return (error); 1263248571Smm error = zfs_secpolicy_write_perms(fsname, 1264248571Smm ZFS_DELEG_PERM_HOLD, cr); 1265248571Smm if (error != 0) 1266248571Smm return (error); 1267248571Smm } 1268248571Smm return (0); 1269219089Spjd} 1270219089Spjd 1271248571Smm/* ARGSUSED */ 1272219089Spjdstatic int 1273248571Smmzfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1274219089Spjd{ 1275248571Smm nvpair_t *pair; 1276248571Smm int error; 1277248571Smm 1278248571Smm for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; 1279248571Smm pair = nvlist_next_nvpair(innvl, pair)) { 1280248571Smm char fsname[MAXNAMELEN]; 1281248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1282248571Smm if (error != 0) 1283248571Smm return (error); 1284248571Smm error = zfs_secpolicy_write_perms(fsname, 1285248571Smm ZFS_DELEG_PERM_RELEASE, cr); 1286248571Smm if (error != 0) 1287248571Smm return (error); 1288248571Smm } 1289248571Smm return (0); 1290219089Spjd} 1291219089Spjd 1292168404Spjd/* 1293219089Spjd * Policy for allowing temporary snapshots to be taken or released 1294219089Spjd */ 1295219089Spjdstatic int 1296248571Smmzfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1297219089Spjd{ 1298219089Spjd /* 1299219089Spjd * A temporary snapshot is the same as a snapshot, 1300219089Spjd * hold, destroy and release all rolled into one. 1301219089Spjd * Delegated diff alone is sufficient that we allow this. 1302219089Spjd */ 1303219089Spjd int error; 1304219089Spjd 1305219089Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1306219089Spjd ZFS_DELEG_PERM_DIFF, cr)) == 0) 1307219089Spjd return (0); 1308219089Spjd 1309248571Smm error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); 1310248571Smm if (error == 0) 1311248571Smm error = zfs_secpolicy_hold(zc, innvl, cr); 1312248571Smm if (error == 0) 1313248571Smm error = zfs_secpolicy_release(zc, innvl, cr); 1314248571Smm if (error == 0) 1315248571Smm error = zfs_secpolicy_destroy(zc, innvl, cr); 1316219089Spjd return (error); 1317219089Spjd} 1318219089Spjd 1319219089Spjd/* 1320168404Spjd * Returns the nvlist as specified by the user in the zfs_cmd_t. 1321168404Spjd */ 1322168404Spjdstatic int 1323219089Spjdget_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) 1324168404Spjd{ 1325168404Spjd char *packed; 1326168404Spjd int error; 1327185029Spjd nvlist_t *list = NULL; 1328168404Spjd 1329168404Spjd /* 1330168404Spjd * Read in and unpack the user-supplied nvlist. 1331168404Spjd */ 1332185029Spjd if (size == 0) 1333249195Smm return (SET_ERROR(EINVAL)); 1334168404Spjd 1335168404Spjd packed = kmem_alloc(size, KM_SLEEP); 1336168404Spjd 1337219089Spjd if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, 1338219089Spjd iflag)) != 0) { 1339168404Spjd kmem_free(packed, size); 1340168404Spjd return (error); 1341168404Spjd } 1342168404Spjd 1343185029Spjd if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { 1344168404Spjd kmem_free(packed, size); 1345168404Spjd return (error); 1346168404Spjd } 1347168404Spjd 1348168404Spjd kmem_free(packed, size); 1349168404Spjd 1350185029Spjd *nvp = list; 1351168404Spjd return (0); 1352168404Spjd} 1353168404Spjd 1354248571Smm/* 1355248571Smm * Reduce the size of this nvlist until it can be serialized in 'max' bytes. 1356248571Smm * Entries will be removed from the end of the nvlist, and one int32 entry 1357248571Smm * named "N_MORE_ERRORS" will be added indicating how many entries were 1358248571Smm * removed. 1359248571Smm */ 1360168404Spjdstatic int 1361248571Smmnvlist_smush(nvlist_t *errors, size_t max) 1362219089Spjd{ 1363219089Spjd size_t size; 1364219089Spjd 1365248571Smm size = fnvlist_size(errors); 1366219089Spjd 1367248571Smm if (size > max) { 1368219089Spjd nvpair_t *more_errors; 1369219089Spjd int n = 0; 1370219089Spjd 1371248571Smm if (max < 1024) 1372249195Smm return (SET_ERROR(ENOMEM)); 1373219089Spjd 1374248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); 1375248571Smm more_errors = nvlist_prev_nvpair(errors, NULL); 1376219089Spjd 1377219089Spjd do { 1378248571Smm nvpair_t *pair = nvlist_prev_nvpair(errors, 1379219089Spjd more_errors); 1380248571Smm fnvlist_remove_nvpair(errors, pair); 1381219089Spjd n++; 1382248571Smm size = fnvlist_size(errors); 1383248571Smm } while (size > max); 1384219089Spjd 1385248571Smm fnvlist_remove_nvpair(errors, more_errors); 1386248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); 1387248571Smm ASSERT3U(fnvlist_size(errors), <=, max); 1388219089Spjd } 1389219089Spjd 1390219089Spjd return (0); 1391219089Spjd} 1392219089Spjd 1393219089Spjdstatic int 1394168404Spjdput_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 1395168404Spjd{ 1396168404Spjd char *packed = NULL; 1397219089Spjd int error = 0; 1398168404Spjd size_t size; 1399168404Spjd 1400248571Smm size = fnvlist_size(nvl); 1401168404Spjd 1402168404Spjd if (size > zc->zc_nvlist_dst_size) { 1403168404Spjd /* 1404168404Spjd * Solaris returns ENOMEM here, because even if an error is 1405168404Spjd * returned from an ioctl(2), new zc_nvlist_dst_size will be 1406168404Spjd * passed to the userland. This is not the case for FreeBSD. 1407168404Spjd * We need to return 0, so the kernel will copy the 1408168404Spjd * zc_nvlist_dst_size back and the userland can discover that a 1409168404Spjd * bigger buffer is needed. 1410168404Spjd */ 1411168404Spjd error = 0; 1412168404Spjd } else { 1413248571Smm packed = fnvlist_pack(nvl, &size); 1414219089Spjd if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 1415219089Spjd size, zc->zc_iflags) != 0) 1416249195Smm error = SET_ERROR(EFAULT); 1417248571Smm fnvlist_pack_free(packed, size); 1418168404Spjd } 1419168404Spjd 1420168404Spjd zc->zc_nvlist_dst_size = size; 1421248571Smm zc->zc_nvlist_dst_filled = B_TRUE; 1422168404Spjd return (error); 1423168404Spjd} 1424168404Spjd 1425168404Spjdstatic int 1426219089Spjdgetzfsvfs(const char *dsname, zfsvfs_t **zfvp) 1427209962Smm{ 1428209962Smm objset_t *os; 1429209962Smm int error; 1430209962Smm 1431219089Spjd error = dmu_objset_hold(dsname, FTAG, &os); 1432248571Smm if (error != 0) 1433209962Smm return (error); 1434219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1435219089Spjd dmu_objset_rele(os, FTAG); 1436249195Smm return (SET_ERROR(EINVAL)); 1437219089Spjd } 1438209962Smm 1439219089Spjd mutex_enter(&os->os_user_ptr_lock); 1440219089Spjd *zfvp = dmu_objset_get_user(os); 1441219089Spjd if (*zfvp) { 1442219089Spjd VFS_HOLD((*zfvp)->z_vfs); 1443209962Smm } else { 1444249195Smm error = SET_ERROR(ESRCH); 1445209962Smm } 1446219089Spjd mutex_exit(&os->os_user_ptr_lock); 1447219089Spjd dmu_objset_rele(os, FTAG); 1448209962Smm return (error); 1449209962Smm} 1450209962Smm 1451209962Smm/* 1452209962Smm * Find a zfsvfs_t for a mounted filesystem, or create our own, in which 1453209962Smm * case its z_vfs will be NULL, and it will be opened as the owner. 1454236884Smm * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, 1455236884Smm * which prevents all vnode ops from running. 1456209962Smm */ 1457209962Smmstatic int 1458219089Spjdzfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) 1459209962Smm{ 1460209962Smm int error = 0; 1461209962Smm 1462219089Spjd if (getzfsvfs(name, zfvp) != 0) 1463219089Spjd error = zfsvfs_create(name, zfvp); 1464209962Smm if (error == 0) { 1465219089Spjd rrw_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : 1466219089Spjd RW_READER, tag); 1467219089Spjd if ((*zfvp)->z_unmounted) { 1468209962Smm /* 1469209962Smm * XXX we could probably try again, since the unmounting 1470209962Smm * thread should be just about to disassociate the 1471209962Smm * objset from the zfsvfs. 1472209962Smm */ 1473219089Spjd rrw_exit(&(*zfvp)->z_teardown_lock, tag); 1474249195Smm return (SET_ERROR(EBUSY)); 1475209962Smm } 1476209962Smm } 1477209962Smm return (error); 1478209962Smm} 1479209962Smm 1480209962Smmstatic void 1481209962Smmzfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) 1482209962Smm{ 1483209962Smm rrw_exit(&zfsvfs->z_teardown_lock, tag); 1484209962Smm 1485209962Smm if (zfsvfs->z_vfs) { 1486209962Smm VFS_RELE(zfsvfs->z_vfs); 1487209962Smm } else { 1488219089Spjd dmu_objset_disown(zfsvfs->z_os, zfsvfs); 1489209962Smm zfsvfs_free(zfsvfs); 1490209962Smm } 1491209962Smm} 1492209962Smm 1493209962Smmstatic int 1494168404Spjdzfs_ioc_pool_create(zfs_cmd_t *zc) 1495168404Spjd{ 1496168404Spjd int error; 1497185029Spjd nvlist_t *config, *props = NULL; 1498185029Spjd nvlist_t *rootprops = NULL; 1499185029Spjd nvlist_t *zplprops = NULL; 1500168404Spjd 1501185029Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1502219089Spjd zc->zc_iflags, &config)) 1503168404Spjd return (error); 1504168404Spjd 1505185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1506219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1507219089Spjd zc->zc_iflags, &props))) { 1508185029Spjd nvlist_free(config); 1509185029Spjd return (error); 1510185029Spjd } 1511168404Spjd 1512185029Spjd if (props) { 1513185029Spjd nvlist_t *nvl = NULL; 1514185029Spjd uint64_t version = SPA_VERSION; 1515185029Spjd 1516185029Spjd (void) nvlist_lookup_uint64(props, 1517185029Spjd zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); 1518236884Smm if (!SPA_VERSION_IS_SUPPORTED(version)) { 1519249195Smm error = SET_ERROR(EINVAL); 1520185029Spjd goto pool_props_bad; 1521185029Spjd } 1522185029Spjd (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); 1523185029Spjd if (nvl) { 1524185029Spjd error = nvlist_dup(nvl, &rootprops, KM_SLEEP); 1525185029Spjd if (error != 0) { 1526185029Spjd nvlist_free(config); 1527185029Spjd nvlist_free(props); 1528185029Spjd return (error); 1529185029Spjd } 1530185029Spjd (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); 1531185029Spjd } 1532185029Spjd VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1533185029Spjd error = zfs_fill_zplprops_root(version, rootprops, 1534185029Spjd zplprops, NULL); 1535248571Smm if (error != 0) 1536185029Spjd goto pool_props_bad; 1537185029Spjd } 1538185029Spjd 1539248571Smm error = spa_create(zc->zc_name, config, props, zplprops); 1540185029Spjd 1541185029Spjd /* 1542185029Spjd * Set the remaining root properties 1543185029Spjd */ 1544219089Spjd if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, 1545219089Spjd ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) 1546185029Spjd (void) spa_destroy(zc->zc_name); 1547185029Spjd 1548185029Spjdpool_props_bad: 1549185029Spjd nvlist_free(rootprops); 1550185029Spjd nvlist_free(zplprops); 1551168404Spjd nvlist_free(config); 1552185029Spjd nvlist_free(props); 1553168404Spjd 1554168404Spjd return (error); 1555168404Spjd} 1556168404Spjd 1557168404Spjdstatic int 1558168404Spjdzfs_ioc_pool_destroy(zfs_cmd_t *zc) 1559168404Spjd{ 1560185029Spjd int error; 1561185029Spjd zfs_log_history(zc); 1562185029Spjd error = spa_destroy(zc->zc_name); 1563219089Spjd if (error == 0) 1564219089Spjd zvol_remove_minors(zc->zc_name); 1565185029Spjd return (error); 1566168404Spjd} 1567168404Spjd 1568168404Spjdstatic int 1569168404Spjdzfs_ioc_pool_import(zfs_cmd_t *zc) 1570168404Spjd{ 1571185029Spjd nvlist_t *config, *props = NULL; 1572168404Spjd uint64_t guid; 1573219089Spjd int error; 1574168404Spjd 1575185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1576219089Spjd zc->zc_iflags, &config)) != 0) 1577168404Spjd return (error); 1578168404Spjd 1579185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1580219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1581219089Spjd zc->zc_iflags, &props))) { 1582185029Spjd nvlist_free(config); 1583185029Spjd return (error); 1584185029Spjd } 1585185029Spjd 1586168404Spjd if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 1587168404Spjd guid != zc->zc_guid) 1588249195Smm error = SET_ERROR(EINVAL); 1589168404Spjd else 1590219089Spjd error = spa_import(zc->zc_name, config, props, zc->zc_cookie); 1591168404Spjd 1592219089Spjd if (zc->zc_nvlist_dst != 0) { 1593219089Spjd int err; 1594219089Spjd 1595219089Spjd if ((err = put_nvlist(zc, config)) != 0) 1596219089Spjd error = err; 1597219089Spjd } 1598219089Spjd 1599168404Spjd nvlist_free(config); 1600168404Spjd 1601185029Spjd if (props) 1602185029Spjd nvlist_free(props); 1603185029Spjd 1604168404Spjd return (error); 1605168404Spjd} 1606168404Spjd 1607168404Spjdstatic int 1608168404Spjdzfs_ioc_pool_export(zfs_cmd_t *zc) 1609168404Spjd{ 1610185029Spjd int error; 1611185029Spjd boolean_t force = (boolean_t)zc->zc_cookie; 1612207670Smm boolean_t hardforce = (boolean_t)zc->zc_guid; 1613185029Spjd 1614185029Spjd zfs_log_history(zc); 1615207670Smm error = spa_export(zc->zc_name, NULL, force, hardforce); 1616219089Spjd if (error == 0) 1617219089Spjd zvol_remove_minors(zc->zc_name); 1618185029Spjd return (error); 1619168404Spjd} 1620168404Spjd 1621168404Spjdstatic int 1622168404Spjdzfs_ioc_pool_configs(zfs_cmd_t *zc) 1623168404Spjd{ 1624168404Spjd nvlist_t *configs; 1625168404Spjd int error; 1626168404Spjd 1627168404Spjd if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 1628249195Smm return (SET_ERROR(EEXIST)); 1629168404Spjd 1630168404Spjd error = put_nvlist(zc, configs); 1631168404Spjd 1632168404Spjd nvlist_free(configs); 1633168404Spjd 1634168404Spjd return (error); 1635168404Spjd} 1636168404Spjd 1637236884Smm/* 1638236884Smm * inputs: 1639236884Smm * zc_name name of the pool 1640236884Smm * 1641236884Smm * outputs: 1642236884Smm * zc_cookie real errno 1643236884Smm * zc_nvlist_dst config nvlist 1644236884Smm * zc_nvlist_dst_size size of config nvlist 1645236884Smm */ 1646168404Spjdstatic int 1647168404Spjdzfs_ioc_pool_stats(zfs_cmd_t *zc) 1648168404Spjd{ 1649168404Spjd nvlist_t *config; 1650168404Spjd int error; 1651168404Spjd int ret = 0; 1652168404Spjd 1653168404Spjd error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 1654168404Spjd sizeof (zc->zc_value)); 1655168404Spjd 1656168404Spjd if (config != NULL) { 1657168404Spjd ret = put_nvlist(zc, config); 1658168404Spjd nvlist_free(config); 1659168404Spjd 1660168404Spjd /* 1661168404Spjd * The config may be present even if 'error' is non-zero. 1662168404Spjd * In this case we return success, and preserve the real errno 1663168404Spjd * in 'zc_cookie'. 1664168404Spjd */ 1665168404Spjd zc->zc_cookie = error; 1666168404Spjd } else { 1667168404Spjd ret = error; 1668168404Spjd } 1669168404Spjd 1670168404Spjd return (ret); 1671168404Spjd} 1672168404Spjd 1673168404Spjd/* 1674168404Spjd * Try to import the given pool, returning pool stats as appropriate so that 1675168404Spjd * user land knows which devices are available and overall pool health. 1676168404Spjd */ 1677168404Spjdstatic int 1678168404Spjdzfs_ioc_pool_tryimport(zfs_cmd_t *zc) 1679168404Spjd{ 1680168404Spjd nvlist_t *tryconfig, *config; 1681168404Spjd int error; 1682168404Spjd 1683185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1684219089Spjd zc->zc_iflags, &tryconfig)) != 0) 1685168404Spjd return (error); 1686168404Spjd 1687168404Spjd config = spa_tryimport(tryconfig); 1688168404Spjd 1689168404Spjd nvlist_free(tryconfig); 1690168404Spjd 1691168404Spjd if (config == NULL) 1692249195Smm return (SET_ERROR(EINVAL)); 1693168404Spjd 1694168404Spjd error = put_nvlist(zc, config); 1695168404Spjd nvlist_free(config); 1696168404Spjd 1697168404Spjd return (error); 1698168404Spjd} 1699168404Spjd 1700219089Spjd/* 1701219089Spjd * inputs: 1702219089Spjd * zc_name name of the pool 1703219089Spjd * zc_cookie scan func (pool_scan_func_t) 1704219089Spjd */ 1705168404Spjdstatic int 1706219089Spjdzfs_ioc_pool_scan(zfs_cmd_t *zc) 1707168404Spjd{ 1708168404Spjd spa_t *spa; 1709168404Spjd int error; 1710168404Spjd 1711168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1712168404Spjd return (error); 1713168404Spjd 1714219089Spjd if (zc->zc_cookie == POOL_SCAN_NONE) 1715219089Spjd error = spa_scan_stop(spa); 1716219089Spjd else 1717219089Spjd error = spa_scan(spa, zc->zc_cookie); 1718168404Spjd 1719168404Spjd spa_close(spa, FTAG); 1720168404Spjd 1721168404Spjd return (error); 1722168404Spjd} 1723168404Spjd 1724168404Spjdstatic int 1725168404Spjdzfs_ioc_pool_freeze(zfs_cmd_t *zc) 1726168404Spjd{ 1727168404Spjd spa_t *spa; 1728168404Spjd int error; 1729168404Spjd 1730168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1731168404Spjd if (error == 0) { 1732168404Spjd spa_freeze(spa); 1733168404Spjd spa_close(spa, FTAG); 1734168404Spjd } 1735168404Spjd return (error); 1736168404Spjd} 1737168404Spjd 1738168404Spjdstatic int 1739168404Spjdzfs_ioc_pool_upgrade(zfs_cmd_t *zc) 1740168404Spjd{ 1741168404Spjd spa_t *spa; 1742168404Spjd int error; 1743168404Spjd 1744168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1745168404Spjd return (error); 1746168404Spjd 1747236884Smm if (zc->zc_cookie < spa_version(spa) || 1748236884Smm !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { 1749185029Spjd spa_close(spa, FTAG); 1750249195Smm return (SET_ERROR(EINVAL)); 1751185029Spjd } 1752168404Spjd 1753185029Spjd spa_upgrade(spa, zc->zc_cookie); 1754168404Spjd spa_close(spa, FTAG); 1755168404Spjd 1756168404Spjd return (error); 1757168404Spjd} 1758168404Spjd 1759168404Spjdstatic int 1760168404Spjdzfs_ioc_pool_get_history(zfs_cmd_t *zc) 1761168404Spjd{ 1762168404Spjd spa_t *spa; 1763168404Spjd char *hist_buf; 1764168404Spjd uint64_t size; 1765168404Spjd int error; 1766168404Spjd 1767168404Spjd if ((size = zc->zc_history_len) == 0) 1768249195Smm return (SET_ERROR(EINVAL)); 1769168404Spjd 1770168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1771168404Spjd return (error); 1772168404Spjd 1773185029Spjd if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 1774168404Spjd spa_close(spa, FTAG); 1775249195Smm return (SET_ERROR(ENOTSUP)); 1776168404Spjd } 1777168404Spjd 1778168404Spjd hist_buf = kmem_alloc(size, KM_SLEEP); 1779168404Spjd if ((error = spa_history_get(spa, &zc->zc_history_offset, 1780168404Spjd &zc->zc_history_len, hist_buf)) == 0) { 1781219089Spjd error = ddi_copyout(hist_buf, 1782219089Spjd (void *)(uintptr_t)zc->zc_history, 1783219089Spjd zc->zc_history_len, zc->zc_iflags); 1784168404Spjd } 1785168404Spjd 1786168404Spjd spa_close(spa, FTAG); 1787168404Spjd kmem_free(hist_buf, size); 1788168404Spjd return (error); 1789168404Spjd} 1790168404Spjd 1791168404Spjdstatic int 1792228103Smmzfs_ioc_pool_reguid(zfs_cmd_t *zc) 1793228103Smm{ 1794228103Smm spa_t *spa; 1795228103Smm int error; 1796228103Smm 1797228103Smm error = spa_open(zc->zc_name, &spa, FTAG); 1798228103Smm if (error == 0) { 1799228103Smm error = spa_change_guid(spa); 1800228103Smm spa_close(spa, FTAG); 1801228103Smm } 1802228103Smm return (error); 1803228103Smm} 1804228103Smm 1805228103Smmstatic int 1806168404Spjdzfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) 1807168404Spjd{ 1808248571Smm return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); 1809168404Spjd} 1810168404Spjd 1811219089Spjd/* 1812219089Spjd * inputs: 1813219089Spjd * zc_name name of filesystem 1814219089Spjd * zc_obj object to find 1815219089Spjd * 1816219089Spjd * outputs: 1817219089Spjd * zc_value name of object 1818219089Spjd */ 1819168404Spjdstatic int 1820168404Spjdzfs_ioc_obj_to_path(zfs_cmd_t *zc) 1821168404Spjd{ 1822219089Spjd objset_t *os; 1823168404Spjd int error; 1824168404Spjd 1825219089Spjd /* XXX reading from objset not owned */ 1826219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1827168404Spjd return (error); 1828219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1829219089Spjd dmu_objset_rele(os, FTAG); 1830249195Smm return (SET_ERROR(EINVAL)); 1831219089Spjd } 1832219089Spjd error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, 1833168404Spjd sizeof (zc->zc_value)); 1834219089Spjd dmu_objset_rele(os, FTAG); 1835168404Spjd 1836168404Spjd return (error); 1837168404Spjd} 1838168404Spjd 1839219089Spjd/* 1840219089Spjd * inputs: 1841219089Spjd * zc_name name of filesystem 1842219089Spjd * zc_obj object to find 1843219089Spjd * 1844219089Spjd * outputs: 1845219089Spjd * zc_stat stats on object 1846219089Spjd * zc_value path to object 1847219089Spjd */ 1848168404Spjdstatic int 1849219089Spjdzfs_ioc_obj_to_stats(zfs_cmd_t *zc) 1850219089Spjd{ 1851219089Spjd objset_t *os; 1852219089Spjd int error; 1853219089Spjd 1854219089Spjd /* XXX reading from objset not owned */ 1855219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1856219089Spjd return (error); 1857219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1858219089Spjd dmu_objset_rele(os, FTAG); 1859249195Smm return (SET_ERROR(EINVAL)); 1860219089Spjd } 1861219089Spjd error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, 1862219089Spjd sizeof (zc->zc_value)); 1863219089Spjd dmu_objset_rele(os, FTAG); 1864219089Spjd 1865219089Spjd return (error); 1866219089Spjd} 1867219089Spjd 1868219089Spjdstatic int 1869168404Spjdzfs_ioc_vdev_add(zfs_cmd_t *zc) 1870168404Spjd{ 1871168404Spjd spa_t *spa; 1872168404Spjd int error; 1873185029Spjd nvlist_t *config, **l2cache, **spares; 1874185029Spjd uint_t nl2cache = 0, nspares = 0; 1875168404Spjd 1876168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1877168404Spjd if (error != 0) 1878168404Spjd return (error); 1879168404Spjd 1880185029Spjd error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1881219089Spjd zc->zc_iflags, &config); 1882185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, 1883185029Spjd &l2cache, &nl2cache); 1884185029Spjd 1885185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, 1886185029Spjd &spares, &nspares); 1887185029Spjd 1888254714Savg#ifdef illumos 1889168404Spjd /* 1890168404Spjd * A root pool with concatenated devices is not supported. 1891185029Spjd * Thus, can not add a device to a root pool. 1892185029Spjd * 1893185029Spjd * Intent log device can not be added to a rootpool because 1894185029Spjd * during mountroot, zil is replayed, a seperated log device 1895185029Spjd * can not be accessed during the mountroot time. 1896185029Spjd * 1897185029Spjd * l2cache and spare devices are ok to be added to a rootpool. 1898168404Spjd */ 1899219089Spjd if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { 1900219089Spjd nvlist_free(config); 1901168404Spjd spa_close(spa, FTAG); 1902249195Smm return (SET_ERROR(EDOM)); 1903168404Spjd } 1904254714Savg#endif /* illumos */ 1905168404Spjd 1906185029Spjd if (error == 0) { 1907168404Spjd error = spa_vdev_add(spa, config); 1908168404Spjd nvlist_free(config); 1909168404Spjd } 1910168404Spjd spa_close(spa, FTAG); 1911168404Spjd return (error); 1912168404Spjd} 1913168404Spjd 1914219089Spjd/* 1915219089Spjd * inputs: 1916219089Spjd * zc_name name of the pool 1917219089Spjd * zc_nvlist_conf nvlist of devices to remove 1918219089Spjd * zc_cookie to stop the remove? 1919219089Spjd */ 1920168404Spjdstatic int 1921168404Spjdzfs_ioc_vdev_remove(zfs_cmd_t *zc) 1922168404Spjd{ 1923168404Spjd spa_t *spa; 1924168404Spjd int error; 1925168404Spjd 1926168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1927168404Spjd if (error != 0) 1928168404Spjd return (error); 1929168404Spjd error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 1930168404Spjd spa_close(spa, FTAG); 1931168404Spjd return (error); 1932168404Spjd} 1933168404Spjd 1934168404Spjdstatic int 1935185029Spjdzfs_ioc_vdev_set_state(zfs_cmd_t *zc) 1936168404Spjd{ 1937168404Spjd spa_t *spa; 1938168404Spjd int error; 1939185029Spjd vdev_state_t newstate = VDEV_STATE_UNKNOWN; 1940168404Spjd 1941168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1942168404Spjd return (error); 1943185029Spjd switch (zc->zc_cookie) { 1944185029Spjd case VDEV_STATE_ONLINE: 1945185029Spjd error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); 1946185029Spjd break; 1947168404Spjd 1948185029Spjd case VDEV_STATE_OFFLINE: 1949185029Spjd error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); 1950185029Spjd break; 1951168404Spjd 1952185029Spjd case VDEV_STATE_FAULTED: 1953219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 1954219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 1955219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 1956219089Spjd 1957219089Spjd error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); 1958185029Spjd break; 1959185029Spjd 1960185029Spjd case VDEV_STATE_DEGRADED: 1961219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 1962219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 1963219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 1964219089Spjd 1965219089Spjd error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); 1966185029Spjd break; 1967185029Spjd 1968185029Spjd default: 1969249195Smm error = SET_ERROR(EINVAL); 1970185029Spjd } 1971185029Spjd zc->zc_cookie = newstate; 1972168404Spjd spa_close(spa, FTAG); 1973168404Spjd return (error); 1974168404Spjd} 1975168404Spjd 1976168404Spjdstatic int 1977168404Spjdzfs_ioc_vdev_attach(zfs_cmd_t *zc) 1978168404Spjd{ 1979168404Spjd spa_t *spa; 1980168404Spjd int replacing = zc->zc_cookie; 1981168404Spjd nvlist_t *config; 1982168404Spjd int error; 1983168404Spjd 1984168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1985168404Spjd return (error); 1986168404Spjd 1987185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1988219089Spjd zc->zc_iflags, &config)) == 0) { 1989168404Spjd error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 1990168404Spjd nvlist_free(config); 1991168404Spjd } 1992168404Spjd 1993168404Spjd spa_close(spa, FTAG); 1994168404Spjd return (error); 1995168404Spjd} 1996168404Spjd 1997168404Spjdstatic int 1998168404Spjdzfs_ioc_vdev_detach(zfs_cmd_t *zc) 1999168404Spjd{ 2000168404Spjd spa_t *spa; 2001168404Spjd int error; 2002168404Spjd 2003168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 2004168404Spjd return (error); 2005168404Spjd 2006209962Smm error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); 2007168404Spjd 2008168404Spjd spa_close(spa, FTAG); 2009168404Spjd return (error); 2010168404Spjd} 2011168404Spjd 2012168404Spjdstatic int 2013219089Spjdzfs_ioc_vdev_split(zfs_cmd_t *zc) 2014219089Spjd{ 2015219089Spjd spa_t *spa; 2016219089Spjd nvlist_t *config, *props = NULL; 2017219089Spjd int error; 2018219089Spjd boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); 2019219089Spjd 2020219089Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 2021219089Spjd return (error); 2022219089Spjd 2023219089Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 2024219089Spjd zc->zc_iflags, &config)) { 2025219089Spjd spa_close(spa, FTAG); 2026219089Spjd return (error); 2027219089Spjd } 2028219089Spjd 2029219089Spjd if (zc->zc_nvlist_src_size != 0 && (error = 2030219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2031219089Spjd zc->zc_iflags, &props))) { 2032219089Spjd spa_close(spa, FTAG); 2033219089Spjd nvlist_free(config); 2034219089Spjd return (error); 2035219089Spjd } 2036219089Spjd 2037219089Spjd error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); 2038219089Spjd 2039219089Spjd spa_close(spa, FTAG); 2040219089Spjd 2041219089Spjd nvlist_free(config); 2042219089Spjd nvlist_free(props); 2043219089Spjd 2044219089Spjd return (error); 2045219089Spjd} 2046219089Spjd 2047219089Spjdstatic int 2048168404Spjdzfs_ioc_vdev_setpath(zfs_cmd_t *zc) 2049168404Spjd{ 2050168404Spjd spa_t *spa; 2051168404Spjd char *path = zc->zc_value; 2052168404Spjd uint64_t guid = zc->zc_guid; 2053168404Spjd int error; 2054168404Spjd 2055168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 2056168404Spjd if (error != 0) 2057168404Spjd return (error); 2058168404Spjd 2059168404Spjd error = spa_vdev_setpath(spa, guid, path); 2060168404Spjd spa_close(spa, FTAG); 2061168404Spjd return (error); 2062168404Spjd} 2063168404Spjd 2064209962Smmstatic int 2065209962Smmzfs_ioc_vdev_setfru(zfs_cmd_t *zc) 2066209962Smm{ 2067209962Smm spa_t *spa; 2068209962Smm char *fru = zc->zc_value; 2069209962Smm uint64_t guid = zc->zc_guid; 2070209962Smm int error; 2071209962Smm 2072209962Smm error = spa_open(zc->zc_name, &spa, FTAG); 2073209962Smm if (error != 0) 2074209962Smm return (error); 2075209962Smm 2076209962Smm error = spa_vdev_setfru(spa, guid, fru); 2077209962Smm spa_close(spa, FTAG); 2078209962Smm return (error); 2079209962Smm} 2080209962Smm 2081219089Spjdstatic int 2082219089Spjdzfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) 2083219089Spjd{ 2084219089Spjd int error = 0; 2085219089Spjd nvlist_t *nv; 2086219089Spjd 2087219089Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2088219089Spjd 2089219089Spjd if (zc->zc_nvlist_dst != 0 && 2090219089Spjd (error = dsl_prop_get_all(os, &nv)) == 0) { 2091219089Spjd dmu_objset_stats(os, nv); 2092219089Spjd /* 2093219089Spjd * NB: zvol_get_stats() will read the objset contents, 2094219089Spjd * which we aren't supposed to do with a 2095219089Spjd * DS_MODE_USER hold, because it could be 2096219089Spjd * inconsistent. So this is a bit of a workaround... 2097219089Spjd * XXX reading with out owning 2098219089Spjd */ 2099228103Smm if (!zc->zc_objset_stats.dds_inconsistent && 2100228103Smm dmu_objset_type(os) == DMU_OST_ZVOL) { 2101228103Smm error = zvol_get_stats(os, nv); 2102228103Smm if (error == EIO) 2103228103Smm return (error); 2104240415Smm VERIFY0(error); 2105219089Spjd } 2106219089Spjd error = put_nvlist(zc, nv); 2107219089Spjd nvlist_free(nv); 2108219089Spjd } 2109219089Spjd 2110219089Spjd return (error); 2111219089Spjd} 2112219089Spjd 2113185029Spjd/* 2114185029Spjd * inputs: 2115185029Spjd * zc_name name of filesystem 2116185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2117185029Spjd * 2118185029Spjd * outputs: 2119185029Spjd * zc_objset_stats stats 2120185029Spjd * zc_nvlist_dst property nvlist 2121185029Spjd * zc_nvlist_dst_size size of property nvlist 2122185029Spjd */ 2123168404Spjdstatic int 2124168404Spjdzfs_ioc_objset_stats(zfs_cmd_t *zc) 2125168404Spjd{ 2126248571Smm objset_t *os; 2127168404Spjd int error; 2128219089Spjd 2129248571Smm error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2130248571Smm if (error == 0) { 2131248571Smm error = zfs_ioc_objset_stats_impl(zc, os); 2132248571Smm dmu_objset_rele(os, FTAG); 2133248571Smm } 2134219089Spjd 2135219089Spjd if (error == ENOMEM) 2136219089Spjd error = 0; 2137219089Spjd return (error); 2138219089Spjd} 2139219089Spjd 2140219089Spjd/* 2141219089Spjd * inputs: 2142219089Spjd * zc_name name of filesystem 2143219089Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2144219089Spjd * 2145219089Spjd * outputs: 2146219089Spjd * zc_nvlist_dst received property nvlist 2147219089Spjd * zc_nvlist_dst_size size of received property nvlist 2148219089Spjd * 2149219089Spjd * Gets received properties (distinct from local properties on or after 2150219089Spjd * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from 2151219089Spjd * local property values. 2152219089Spjd */ 2153219089Spjdstatic int 2154219089Spjdzfs_ioc_objset_recvd_props(zfs_cmd_t *zc) 2155219089Spjd{ 2156248571Smm int error = 0; 2157168404Spjd nvlist_t *nv; 2158168404Spjd 2159219089Spjd /* 2160219089Spjd * Without this check, we would return local property values if the 2161219089Spjd * caller has not already received properties on or after 2162219089Spjd * SPA_VERSION_RECVD_PROPS. 2163219089Spjd */ 2164248571Smm if (!dsl_prop_get_hasrecvd(zc->zc_name)) 2165249195Smm return (SET_ERROR(ENOTSUP)); 2166168404Spjd 2167168404Spjd if (zc->zc_nvlist_dst != 0 && 2168248571Smm (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { 2169168404Spjd error = put_nvlist(zc, nv); 2170168404Spjd nvlist_free(nv); 2171168404Spjd } 2172168404Spjd 2173168404Spjd return (error); 2174168404Spjd} 2175168404Spjd 2176168404Spjdstatic int 2177185029Spjdnvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) 2178185029Spjd{ 2179185029Spjd uint64_t value; 2180185029Spjd int error; 2181185029Spjd 2182185029Spjd /* 2183185029Spjd * zfs_get_zplprop() will either find a value or give us 2184185029Spjd * the default value (if there is one). 2185185029Spjd */ 2186185029Spjd if ((error = zfs_get_zplprop(os, prop, &value)) != 0) 2187185029Spjd return (error); 2188185029Spjd VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); 2189185029Spjd return (0); 2190185029Spjd} 2191185029Spjd 2192185029Spjd/* 2193185029Spjd * inputs: 2194185029Spjd * zc_name name of filesystem 2195185029Spjd * zc_nvlist_dst_size size of buffer for zpl property nvlist 2196185029Spjd * 2197185029Spjd * outputs: 2198185029Spjd * zc_nvlist_dst zpl property nvlist 2199185029Spjd * zc_nvlist_dst_size size of zpl property nvlist 2200185029Spjd */ 2201185029Spjdstatic int 2202185029Spjdzfs_ioc_objset_zplprops(zfs_cmd_t *zc) 2203185029Spjd{ 2204185029Spjd objset_t *os; 2205185029Spjd int err; 2206185029Spjd 2207219089Spjd /* XXX reading without owning */ 2208219089Spjd if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) 2209185029Spjd return (err); 2210185029Spjd 2211185029Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2212185029Spjd 2213185029Spjd /* 2214185029Spjd * NB: nvl_add_zplprop() will read the objset contents, 2215185029Spjd * which we aren't supposed to do with a DS_MODE_USER 2216185029Spjd * hold, because it could be inconsistent. 2217185029Spjd */ 2218185029Spjd if (zc->zc_nvlist_dst != 0 && 2219185029Spjd !zc->zc_objset_stats.dds_inconsistent && 2220185029Spjd dmu_objset_type(os) == DMU_OST_ZFS) { 2221185029Spjd nvlist_t *nv; 2222185029Spjd 2223185029Spjd VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2224185029Spjd if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && 2225185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && 2226185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && 2227185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) 2228185029Spjd err = put_nvlist(zc, nv); 2229185029Spjd nvlist_free(nv); 2230185029Spjd } else { 2231249195Smm err = SET_ERROR(ENOENT); 2232185029Spjd } 2233219089Spjd dmu_objset_rele(os, FTAG); 2234185029Spjd return (err); 2235185029Spjd} 2236185029Spjd 2237219089Spjdboolean_t 2238209962Smmdataset_name_hidden(const char *name) 2239209962Smm{ 2240209962Smm /* 2241209962Smm * Skip over datasets that are not visible in this zone, 2242209962Smm * internal datasets (which have a $ in their name), and 2243209962Smm * temporary datasets (which have a % in their name). 2244209962Smm */ 2245209962Smm if (strchr(name, '$') != NULL) 2246209962Smm return (B_TRUE); 2247209962Smm if (strchr(name, '%') != NULL) 2248209962Smm return (B_TRUE); 2249209962Smm if (!INGLOBALZONE(curthread) && !zone_dataset_visible(name, NULL)) 2250209962Smm return (B_TRUE); 2251209962Smm return (B_FALSE); 2252209962Smm} 2253209962Smm 2254185029Spjd/* 2255185029Spjd * inputs: 2256185029Spjd * zc_name name of filesystem 2257185029Spjd * zc_cookie zap cursor 2258185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2259185029Spjd * 2260185029Spjd * outputs: 2261185029Spjd * zc_name name of next filesystem 2262209962Smm * zc_cookie zap cursor 2263185029Spjd * zc_objset_stats stats 2264185029Spjd * zc_nvlist_dst property nvlist 2265185029Spjd * zc_nvlist_dst_size size of property nvlist 2266185029Spjd */ 2267185029Spjdstatic int 2268168404Spjdzfs_ioc_dataset_list_next(zfs_cmd_t *zc) 2269168404Spjd{ 2270168404Spjd objset_t *os; 2271168404Spjd int error; 2272168404Spjd char *p; 2273219089Spjd size_t orig_len = strlen(zc->zc_name); 2274168404Spjd 2275219089Spjdtop: 2276219089Spjd if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { 2277168404Spjd if (error == ENOENT) 2278249195Smm error = SET_ERROR(ESRCH); 2279168404Spjd return (error); 2280168404Spjd } 2281168404Spjd 2282168404Spjd p = strrchr(zc->zc_name, '/'); 2283168404Spjd if (p == NULL || p[1] != '\0') 2284168404Spjd (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 2285168404Spjd p = zc->zc_name + strlen(zc->zc_name); 2286168404Spjd 2287168404Spjd do { 2288168404Spjd error = dmu_dir_list_next(os, 2289168404Spjd sizeof (zc->zc_name) - (p - zc->zc_name), p, 2290168404Spjd NULL, &zc->zc_cookie); 2291168404Spjd if (error == ENOENT) 2292249195Smm error = SET_ERROR(ESRCH); 2293228103Smm } while (error == 0 && dataset_name_hidden(zc->zc_name)); 2294219089Spjd dmu_objset_rele(os, FTAG); 2295168404Spjd 2296219089Spjd /* 2297219089Spjd * If it's an internal dataset (ie. with a '$' in its name), 2298219089Spjd * don't try to get stats for it, otherwise we'll return ENOENT. 2299219089Spjd */ 2300219089Spjd if (error == 0 && strchr(zc->zc_name, '$') == NULL) { 2301168404Spjd error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 2302219089Spjd if (error == ENOENT) { 2303219089Spjd /* We lost a race with destroy, get the next one. */ 2304219089Spjd zc->zc_name[orig_len] = '\0'; 2305219089Spjd goto top; 2306219089Spjd } 2307219089Spjd } 2308168404Spjd return (error); 2309168404Spjd} 2310168404Spjd 2311185029Spjd/* 2312185029Spjd * inputs: 2313185029Spjd * zc_name name of filesystem 2314185029Spjd * zc_cookie zap cursor 2315185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2316230438Spjd * zc_simple when set, only name is requested 2317185029Spjd * 2318185029Spjd * outputs: 2319185029Spjd * zc_name name of next snapshot 2320185029Spjd * zc_objset_stats stats 2321185029Spjd * zc_nvlist_dst property nvlist 2322185029Spjd * zc_nvlist_dst_size size of property nvlist 2323185029Spjd */ 2324168404Spjdstatic int 2325168404Spjdzfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 2326168404Spjd{ 2327168404Spjd objset_t *os; 2328168404Spjd int error; 2329168404Spjd 2330219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2331248571Smm if (error != 0) { 2332185029Spjd return (error == ENOENT ? ESRCH : error); 2333248571Smm } 2334168404Spjd 2335168404Spjd /* 2336168404Spjd * A dataset name of maximum length cannot have any snapshots, 2337168404Spjd * so exit immediately. 2338168404Spjd */ 2339168404Spjd if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { 2340219089Spjd dmu_objset_rele(os, FTAG); 2341249195Smm return (SET_ERROR(ESRCH)); 2342168404Spjd } 2343168404Spjd 2344168404Spjd error = dmu_snapshot_list_next(os, 2345168404Spjd sizeof (zc->zc_name) - strlen(zc->zc_name), 2346219089Spjd zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, 2347219089Spjd NULL); 2348219089Spjd 2349230438Spjd if (error == 0 && !zc->zc_simple) { 2350219089Spjd dsl_dataset_t *ds; 2351219089Spjd dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; 2352219089Spjd 2353219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); 2354248571Smm if (error == 0) { 2355219089Spjd objset_t *ossnap; 2356219089Spjd 2357219089Spjd error = dmu_objset_from_ds(ds, &ossnap); 2358219089Spjd if (error == 0) 2359219089Spjd error = zfs_ioc_objset_stats_impl(zc, ossnap); 2360219089Spjd dsl_dataset_rele(ds, FTAG); 2361219089Spjd } 2362219089Spjd } else if (error == ENOENT) { 2363249195Smm error = SET_ERROR(ESRCH); 2364219089Spjd } 2365168404Spjd 2366219089Spjd dmu_objset_rele(os, FTAG); 2367185029Spjd /* if we failed, undo the @ that we tacked on to zc_name */ 2368248571Smm if (error != 0) 2369185029Spjd *strchr(zc->zc_name, '@') = '\0'; 2370168404Spjd return (error); 2371168404Spjd} 2372168404Spjd 2373219089Spjdstatic int 2374219089Spjdzfs_prop_set_userquota(const char *dsname, nvpair_t *pair) 2375168404Spjd{ 2376219089Spjd const char *propname = nvpair_name(pair); 2377219089Spjd uint64_t *valary; 2378219089Spjd unsigned int vallen; 2379219089Spjd const char *domain; 2380219089Spjd char *dash; 2381219089Spjd zfs_userquota_prop_t type; 2382219089Spjd uint64_t rid; 2383219089Spjd uint64_t quota; 2384219089Spjd zfsvfs_t *zfsvfs; 2385219089Spjd int err; 2386168404Spjd 2387219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2388219089Spjd nvlist_t *attrs; 2389219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2390219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2391219089Spjd &pair) != 0) 2392249195Smm return (SET_ERROR(EINVAL)); 2393219089Spjd } 2394219089Spjd 2395185029Spjd /* 2396219089Spjd * A correctly constructed propname is encoded as 2397219089Spjd * userquota@<rid>-<domain>. 2398185029Spjd */ 2399219089Spjd if ((dash = strchr(propname, '-')) == NULL || 2400219089Spjd nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || 2401219089Spjd vallen != 3) 2402249195Smm return (SET_ERROR(EINVAL)); 2403168404Spjd 2404219089Spjd domain = dash + 1; 2405219089Spjd type = valary[0]; 2406219089Spjd rid = valary[1]; 2407219089Spjd quota = valary[2]; 2408168404Spjd 2409219089Spjd err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); 2410219089Spjd if (err == 0) { 2411219089Spjd err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); 2412219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2413219089Spjd } 2414209962Smm 2415219089Spjd return (err); 2416219089Spjd} 2417168404Spjd 2418219089Spjd/* 2419219089Spjd * If the named property is one that has a special function to set its value, 2420219089Spjd * return 0 on success and a positive error code on failure; otherwise if it is 2421219089Spjd * not one of the special properties handled by this function, return -1. 2422219089Spjd * 2423219089Spjd * XXX: It would be better for callers of the property interface if we handled 2424219089Spjd * these special cases in dsl_prop.c (in the dsl layer). 2425219089Spjd */ 2426219089Spjdstatic int 2427219089Spjdzfs_prop_set_special(const char *dsname, zprop_source_t source, 2428219089Spjd nvpair_t *pair) 2429219089Spjd{ 2430219089Spjd const char *propname = nvpair_name(pair); 2431219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2432219089Spjd uint64_t intval; 2433219089Spjd int err; 2434209962Smm 2435219089Spjd if (prop == ZPROP_INVAL) { 2436219089Spjd if (zfs_prop_userquota(propname)) 2437219089Spjd return (zfs_prop_set_userquota(dsname, pair)); 2438219089Spjd return (-1); 2439219089Spjd } 2440185029Spjd 2441219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2442219089Spjd nvlist_t *attrs; 2443219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2444219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2445219089Spjd &pair) == 0); 2446219089Spjd } 2447168404Spjd 2448219089Spjd if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) 2449219089Spjd return (-1); 2450185029Spjd 2451219089Spjd VERIFY(0 == nvpair_value_uint64(pair, &intval)); 2452185029Spjd 2453219089Spjd switch (prop) { 2454219089Spjd case ZFS_PROP_QUOTA: 2455219089Spjd err = dsl_dir_set_quota(dsname, source, intval); 2456219089Spjd break; 2457219089Spjd case ZFS_PROP_REFQUOTA: 2458248571Smm err = dsl_dataset_set_refquota(dsname, source, intval); 2459219089Spjd break; 2460219089Spjd case ZFS_PROP_RESERVATION: 2461219089Spjd err = dsl_dir_set_reservation(dsname, source, intval); 2462219089Spjd break; 2463219089Spjd case ZFS_PROP_REFRESERVATION: 2464248571Smm err = dsl_dataset_set_refreservation(dsname, source, intval); 2465219089Spjd break; 2466219089Spjd case ZFS_PROP_VOLSIZE: 2467219089Spjd err = zvol_set_volsize(dsname, ddi_driver_major(zfs_dip), 2468219089Spjd intval); 2469219089Spjd break; 2470219089Spjd case ZFS_PROP_VERSION: 2471219089Spjd { 2472219089Spjd zfsvfs_t *zfsvfs; 2473219089Spjd 2474219089Spjd if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) 2475185029Spjd break; 2476201143Sdelphij 2477219089Spjd err = zfs_set_version(zfsvfs, intval); 2478219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2479168404Spjd 2480219089Spjd if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { 2481219089Spjd zfs_cmd_t *zc; 2482185029Spjd 2483219089Spjd zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 2484219089Spjd (void) strcpy(zc->zc_name, dsname); 2485219089Spjd (void) zfs_ioc_userspace_upgrade(zc); 2486219089Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 2487185029Spjd } 2488219089Spjd break; 2489219089Spjd } 2490246586Sdelphij case ZFS_PROP_COMPRESSION: 2491246586Sdelphij { 2492246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 2493246586Sdelphij spa_t *spa; 2494185029Spjd 2495246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 2496246586Sdelphij return (err); 2497246586Sdelphij 2498246586Sdelphij /* 2499246586Sdelphij * Setting the LZ4 compression algorithm activates 2500246586Sdelphij * the feature. 2501246586Sdelphij */ 2502259813Sdelphij if (!spa_feature_is_active(spa, 2503259813Sdelphij SPA_FEATURE_LZ4_COMPRESS)) { 2504248571Smm if ((err = zfs_prop_activate_feature(spa, 2505259813Sdelphij SPA_FEATURE_LZ4_COMPRESS)) != 0) { 2506246586Sdelphij spa_close(spa, FTAG); 2507246586Sdelphij return (err); 2508246586Sdelphij } 2509246586Sdelphij } 2510246586Sdelphij 2511246586Sdelphij spa_close(spa, FTAG); 2512246586Sdelphij } 2513246586Sdelphij /* 2514246586Sdelphij * We still want the default set action to be performed in the 2515246586Sdelphij * caller, we only performed zfeature settings here. 2516246586Sdelphij */ 2517246586Sdelphij err = -1; 2518246586Sdelphij break; 2519246586Sdelphij } 2520246586Sdelphij 2521219089Spjd default: 2522219089Spjd err = -1; 2523219089Spjd } 2524168404Spjd 2525219089Spjd return (err); 2526219089Spjd} 2527185029Spjd 2528219089Spjd/* 2529219089Spjd * This function is best effort. If it fails to set any of the given properties, 2530248571Smm * it continues to set as many as it can and returns the last error 2531248571Smm * encountered. If the caller provides a non-NULL errlist, it will be filled in 2532248571Smm * with the list of names of all the properties that failed along with the 2533248571Smm * corresponding error numbers. 2534219089Spjd * 2535248571Smm * If every property is set successfully, zero is returned and errlist is not 2536248571Smm * modified. 2537219089Spjd */ 2538219089Spjdint 2539219089Spjdzfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, 2540248571Smm nvlist_t *errlist) 2541219089Spjd{ 2542219089Spjd nvpair_t *pair; 2543219089Spjd nvpair_t *propval; 2544219089Spjd int rv = 0; 2545219089Spjd uint64_t intval; 2546219089Spjd char *strval; 2547248571Smm nvlist_t *genericnvl = fnvlist_alloc(); 2548248571Smm nvlist_t *retrynvl = fnvlist_alloc(); 2549168404Spjd 2550219089Spjdretry: 2551219089Spjd pair = NULL; 2552219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2553219089Spjd const char *propname = nvpair_name(pair); 2554219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2555219089Spjd int err = 0; 2556185029Spjd 2557219089Spjd /* decode the property value */ 2558219089Spjd propval = pair; 2559219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2560219089Spjd nvlist_t *attrs; 2561248571Smm attrs = fnvpair_value_nvlist(pair); 2562219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2563219089Spjd &propval) != 0) 2564249195Smm err = SET_ERROR(EINVAL); 2565219089Spjd } 2566168404Spjd 2567219089Spjd /* Validate value type */ 2568219089Spjd if (err == 0 && prop == ZPROP_INVAL) { 2569219089Spjd if (zfs_prop_user(propname)) { 2570219089Spjd if (nvpair_type(propval) != DATA_TYPE_STRING) 2571249195Smm err = SET_ERROR(EINVAL); 2572219089Spjd } else if (zfs_prop_userquota(propname)) { 2573219089Spjd if (nvpair_type(propval) != 2574219089Spjd DATA_TYPE_UINT64_ARRAY) 2575249195Smm err = SET_ERROR(EINVAL); 2576228103Smm } else { 2577249195Smm err = SET_ERROR(EINVAL); 2578209962Smm } 2579219089Spjd } else if (err == 0) { 2580219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2581219089Spjd if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) 2582249195Smm err = SET_ERROR(EINVAL); 2583219089Spjd } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { 2584168404Spjd const char *unused; 2585168404Spjd 2586248571Smm intval = fnvpair_value_uint64(propval); 2587168404Spjd 2588168404Spjd switch (zfs_prop_get_type(prop)) { 2589185029Spjd case PROP_TYPE_NUMBER: 2590168404Spjd break; 2591185029Spjd case PROP_TYPE_STRING: 2592249195Smm err = SET_ERROR(EINVAL); 2593219089Spjd break; 2594185029Spjd case PROP_TYPE_INDEX: 2595168404Spjd if (zfs_prop_index_to_string(prop, 2596219089Spjd intval, &unused) != 0) 2597249195Smm err = SET_ERROR(EINVAL); 2598168404Spjd break; 2599168404Spjd default: 2600185029Spjd cmn_err(CE_PANIC, 2601185029Spjd "unknown property type"); 2602168404Spjd } 2603168404Spjd } else { 2604249195Smm err = SET_ERROR(EINVAL); 2605168404Spjd } 2606168404Spjd } 2607219089Spjd 2608219089Spjd /* Validate permissions */ 2609219089Spjd if (err == 0) 2610219089Spjd err = zfs_check_settable(dsname, pair, CRED()); 2611219089Spjd 2612219089Spjd if (err == 0) { 2613219089Spjd err = zfs_prop_set_special(dsname, source, pair); 2614219089Spjd if (err == -1) { 2615219089Spjd /* 2616219089Spjd * For better performance we build up a list of 2617219089Spjd * properties to set in a single transaction. 2618219089Spjd */ 2619219089Spjd err = nvlist_add_nvpair(genericnvl, pair); 2620219089Spjd } else if (err != 0 && nvl != retrynvl) { 2621219089Spjd /* 2622219089Spjd * This may be a spurious error caused by 2623219089Spjd * receiving quota and reservation out of order. 2624219089Spjd * Try again in a second pass. 2625219089Spjd */ 2626219089Spjd err = nvlist_add_nvpair(retrynvl, pair); 2627219089Spjd } 2628219089Spjd } 2629219089Spjd 2630248571Smm if (err != 0) { 2631248571Smm if (errlist != NULL) 2632248571Smm fnvlist_add_int32(errlist, propname, err); 2633248571Smm rv = err; 2634248571Smm } 2635168404Spjd } 2636168404Spjd 2637219089Spjd if (nvl != retrynvl && !nvlist_empty(retrynvl)) { 2638219089Spjd nvl = retrynvl; 2639219089Spjd goto retry; 2640209962Smm } 2641219089Spjd 2642219089Spjd if (!nvlist_empty(genericnvl) && 2643219089Spjd dsl_props_set(dsname, source, genericnvl) != 0) { 2644219089Spjd /* 2645219089Spjd * If this fails, we still want to set as many properties as we 2646219089Spjd * can, so try setting them individually. 2647219089Spjd */ 2648219089Spjd pair = NULL; 2649219089Spjd while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { 2650219089Spjd const char *propname = nvpair_name(pair); 2651219089Spjd int err = 0; 2652219089Spjd 2653219089Spjd propval = pair; 2654219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2655219089Spjd nvlist_t *attrs; 2656248571Smm attrs = fnvpair_value_nvlist(pair); 2657248571Smm propval = fnvlist_lookup_nvpair(attrs, 2658248571Smm ZPROP_VALUE); 2659219089Spjd } 2660219089Spjd 2661219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2662248571Smm strval = fnvpair_value_string(propval); 2663248571Smm err = dsl_prop_set_string(dsname, propname, 2664248571Smm source, strval); 2665219089Spjd } else { 2666248571Smm intval = fnvpair_value_uint64(propval); 2667248571Smm err = dsl_prop_set_int(dsname, propname, source, 2668248571Smm intval); 2669219089Spjd } 2670219089Spjd 2671219089Spjd if (err != 0) { 2672248571Smm if (errlist != NULL) { 2673248571Smm fnvlist_add_int32(errlist, propname, 2674248571Smm err); 2675248571Smm } 2676248571Smm rv = err; 2677219089Spjd } 2678219089Spjd } 2679219089Spjd } 2680209962Smm nvlist_free(genericnvl); 2681219089Spjd nvlist_free(retrynvl); 2682219089Spjd 2683219089Spjd return (rv); 2684209962Smm} 2685209962Smm 2686209962Smm/* 2687209962Smm * Check that all the properties are valid user properties. 2688209962Smm */ 2689209962Smmstatic int 2690248571Smmzfs_check_userprops(const char *fsname, nvlist_t *nvl) 2691209962Smm{ 2692219089Spjd nvpair_t *pair = NULL; 2693209962Smm int error = 0; 2694209962Smm 2695219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2696219089Spjd const char *propname = nvpair_name(pair); 2697209962Smm 2698209962Smm if (!zfs_prop_user(propname) || 2699219089Spjd nvpair_type(pair) != DATA_TYPE_STRING) 2700249195Smm return (SET_ERROR(EINVAL)); 2701209962Smm 2702209962Smm if (error = zfs_secpolicy_write_perms(fsname, 2703209962Smm ZFS_DELEG_PERM_USERPROP, CRED())) 2704209962Smm return (error); 2705209962Smm 2706209962Smm if (strlen(propname) >= ZAP_MAXNAMELEN) 2707249195Smm return (SET_ERROR(ENAMETOOLONG)); 2708209962Smm 2709260183Sdelphij if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) 2710209962Smm return (E2BIG); 2711209962Smm } 2712168404Spjd return (0); 2713168404Spjd} 2714168404Spjd 2715219089Spjdstatic void 2716219089Spjdprops_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) 2717219089Spjd{ 2718219089Spjd nvpair_t *pair; 2719219089Spjd 2720219089Spjd VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2721219089Spjd 2722219089Spjd pair = NULL; 2723219089Spjd while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { 2724219089Spjd if (nvlist_exists(skipped, nvpair_name(pair))) 2725219089Spjd continue; 2726219089Spjd 2727219089Spjd VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); 2728219089Spjd } 2729219089Spjd} 2730219089Spjd 2731219089Spjdstatic int 2732248571Smmclear_received_props(const char *dsname, nvlist_t *props, 2733219089Spjd nvlist_t *skipped) 2734219089Spjd{ 2735219089Spjd int err = 0; 2736219089Spjd nvlist_t *cleared_props = NULL; 2737219089Spjd props_skip(props, skipped, &cleared_props); 2738219089Spjd if (!nvlist_empty(cleared_props)) { 2739219089Spjd /* 2740219089Spjd * Acts on local properties until the dataset has received 2741219089Spjd * properties at least once on or after SPA_VERSION_RECVD_PROPS. 2742219089Spjd */ 2743219089Spjd zprop_source_t flags = (ZPROP_SRC_NONE | 2744248571Smm (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); 2745248571Smm err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); 2746219089Spjd } 2747219089Spjd nvlist_free(cleared_props); 2748219089Spjd return (err); 2749219089Spjd} 2750219089Spjd 2751185029Spjd/* 2752185029Spjd * inputs: 2753185029Spjd * zc_name name of filesystem 2754209962Smm * zc_value name of property to set 2755185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 2756219089Spjd * zc_cookie received properties flag 2757185029Spjd * 2758219089Spjd * outputs: 2759219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 2760185029Spjd */ 2761168404Spjdstatic int 2762168404Spjdzfs_ioc_set_prop(zfs_cmd_t *zc) 2763168404Spjd{ 2764168404Spjd nvlist_t *nvl; 2765219089Spjd boolean_t received = zc->zc_cookie; 2766219089Spjd zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : 2767219089Spjd ZPROP_SRC_LOCAL); 2768248571Smm nvlist_t *errors; 2769168404Spjd int error; 2770168404Spjd 2771185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2772219089Spjd zc->zc_iflags, &nvl)) != 0) 2773185029Spjd return (error); 2774168404Spjd 2775219089Spjd if (received) { 2776185029Spjd nvlist_t *origprops; 2777185029Spjd 2778248571Smm if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { 2779248571Smm (void) clear_received_props(zc->zc_name, 2780248571Smm origprops, nvl); 2781248571Smm nvlist_free(origprops); 2782248571Smm } 2783219089Spjd 2784248571Smm error = dsl_prop_set_hasrecvd(zc->zc_name); 2785219089Spjd } 2786185029Spjd 2787248571Smm errors = fnvlist_alloc(); 2788248571Smm if (error == 0) 2789248571Smm error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); 2790219089Spjd 2791219089Spjd if (zc->zc_nvlist_dst != 0 && errors != NULL) { 2792219089Spjd (void) put_nvlist(zc, errors); 2793168404Spjd } 2794168404Spjd 2795219089Spjd nvlist_free(errors); 2796168404Spjd nvlist_free(nvl); 2797168404Spjd return (error); 2798168404Spjd} 2799168404Spjd 2800185029Spjd/* 2801185029Spjd * inputs: 2802185029Spjd * zc_name name of filesystem 2803185029Spjd * zc_value name of property to inherit 2804219089Spjd * zc_cookie revert to received value if TRUE 2805185029Spjd * 2806185029Spjd * outputs: none 2807185029Spjd */ 2808168404Spjdstatic int 2809185029Spjdzfs_ioc_inherit_prop(zfs_cmd_t *zc) 2810185029Spjd{ 2811219089Spjd const char *propname = zc->zc_value; 2812219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2813219089Spjd boolean_t received = zc->zc_cookie; 2814219089Spjd zprop_source_t source = (received 2815219089Spjd ? ZPROP_SRC_NONE /* revert to received value, if any */ 2816219089Spjd : ZPROP_SRC_INHERITED); /* explicitly inherit */ 2817219089Spjd 2818219089Spjd if (received) { 2819219089Spjd nvlist_t *dummy; 2820219089Spjd nvpair_t *pair; 2821219089Spjd zprop_type_t type; 2822219089Spjd int err; 2823219089Spjd 2824219089Spjd /* 2825219089Spjd * zfs_prop_set_special() expects properties in the form of an 2826219089Spjd * nvpair with type info. 2827219089Spjd */ 2828219089Spjd if (prop == ZPROP_INVAL) { 2829219089Spjd if (!zfs_prop_user(propname)) 2830249195Smm return (SET_ERROR(EINVAL)); 2831219089Spjd 2832219089Spjd type = PROP_TYPE_STRING; 2833219089Spjd } else if (prop == ZFS_PROP_VOLSIZE || 2834219089Spjd prop == ZFS_PROP_VERSION) { 2835249195Smm return (SET_ERROR(EINVAL)); 2836219089Spjd } else { 2837219089Spjd type = zfs_prop_get_type(prop); 2838219089Spjd } 2839219089Spjd 2840219089Spjd VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2841219089Spjd 2842219089Spjd switch (type) { 2843219089Spjd case PROP_TYPE_STRING: 2844219089Spjd VERIFY(0 == nvlist_add_string(dummy, propname, "")); 2845219089Spjd break; 2846219089Spjd case PROP_TYPE_NUMBER: 2847219089Spjd case PROP_TYPE_INDEX: 2848219089Spjd VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); 2849219089Spjd break; 2850219089Spjd default: 2851219089Spjd nvlist_free(dummy); 2852249195Smm return (SET_ERROR(EINVAL)); 2853219089Spjd } 2854219089Spjd 2855219089Spjd pair = nvlist_next_nvpair(dummy, NULL); 2856219089Spjd err = zfs_prop_set_special(zc->zc_name, source, pair); 2857219089Spjd nvlist_free(dummy); 2858219089Spjd if (err != -1) 2859219089Spjd return (err); /* special property already handled */ 2860219089Spjd } else { 2861219089Spjd /* 2862219089Spjd * Only check this in the non-received case. We want to allow 2863219089Spjd * 'inherit -S' to revert non-inheritable properties like quota 2864219089Spjd * and reservation to the received or default values even though 2865219089Spjd * they are not considered inheritable. 2866219089Spjd */ 2867219089Spjd if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) 2868249195Smm return (SET_ERROR(EINVAL)); 2869219089Spjd } 2870219089Spjd 2871248571Smm /* property name has been validated by zfs_secpolicy_inherit_prop() */ 2872248571Smm return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); 2873185029Spjd} 2874185029Spjd 2875185029Spjdstatic int 2876169055Spjdzfs_ioc_pool_set_props(zfs_cmd_t *zc) 2877168404Spjd{ 2878185029Spjd nvlist_t *props; 2879168404Spjd spa_t *spa; 2880185029Spjd int error; 2881219089Spjd nvpair_t *pair; 2882168404Spjd 2883219089Spjd if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2884219089Spjd zc->zc_iflags, &props)) 2885168404Spjd return (error); 2886168404Spjd 2887209962Smm /* 2888209962Smm * If the only property is the configfile, then just do a spa_lookup() 2889209962Smm * to handle the faulted case. 2890209962Smm */ 2891219089Spjd pair = nvlist_next_nvpair(props, NULL); 2892219089Spjd if (pair != NULL && strcmp(nvpair_name(pair), 2893209962Smm zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && 2894219089Spjd nvlist_next_nvpair(props, pair) == NULL) { 2895209962Smm mutex_enter(&spa_namespace_lock); 2896209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) { 2897209962Smm spa_configfile_set(spa, props, B_FALSE); 2898209962Smm spa_config_sync(spa, B_FALSE, B_TRUE); 2899209962Smm } 2900209962Smm mutex_exit(&spa_namespace_lock); 2901219089Spjd if (spa != NULL) { 2902219089Spjd nvlist_free(props); 2903209962Smm return (0); 2904219089Spjd } 2905209962Smm } 2906209962Smm 2907168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2908185029Spjd nvlist_free(props); 2909168404Spjd return (error); 2910168404Spjd } 2911168404Spjd 2912185029Spjd error = spa_prop_set(spa, props); 2913168404Spjd 2914185029Spjd nvlist_free(props); 2915168404Spjd spa_close(spa, FTAG); 2916168404Spjd 2917168404Spjd return (error); 2918168404Spjd} 2919168404Spjd 2920168404Spjdstatic int 2921169055Spjdzfs_ioc_pool_get_props(zfs_cmd_t *zc) 2922168404Spjd{ 2923168404Spjd spa_t *spa; 2924168404Spjd int error; 2925168404Spjd nvlist_t *nvp = NULL; 2926168404Spjd 2927209962Smm if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2928209962Smm /* 2929209962Smm * If the pool is faulted, there may be properties we can still 2930209962Smm * get (such as altroot and cachefile), so attempt to get them 2931209962Smm * anyway. 2932209962Smm */ 2933209962Smm mutex_enter(&spa_namespace_lock); 2934209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) 2935209962Smm error = spa_prop_get(spa, &nvp); 2936209962Smm mutex_exit(&spa_namespace_lock); 2937209962Smm } else { 2938209962Smm error = spa_prop_get(spa, &nvp); 2939209962Smm spa_close(spa, FTAG); 2940209962Smm } 2941168404Spjd 2942168404Spjd if (error == 0 && zc->zc_nvlist_dst != 0) 2943168404Spjd error = put_nvlist(zc, nvp); 2944168404Spjd else 2945249195Smm error = SET_ERROR(EFAULT); 2946168404Spjd 2947209962Smm nvlist_free(nvp); 2948168404Spjd return (error); 2949168404Spjd} 2950168404Spjd 2951185029Spjd/* 2952185029Spjd * inputs: 2953185029Spjd * zc_name name of filesystem 2954185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 2955185029Spjd * zc_perm_action allow/unallow flag 2956185029Spjd * 2957185029Spjd * outputs: none 2958185029Spjd */ 2959185029Spjdstatic int 2960185029Spjdzfs_ioc_set_fsacl(zfs_cmd_t *zc) 2961185029Spjd{ 2962185029Spjd int error; 2963185029Spjd nvlist_t *fsaclnv = NULL; 2964185029Spjd 2965185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2966219089Spjd zc->zc_iflags, &fsaclnv)) != 0) 2967185029Spjd return (error); 2968185029Spjd 2969185029Spjd /* 2970185029Spjd * Verify nvlist is constructed correctly 2971185029Spjd */ 2972185029Spjd if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { 2973185029Spjd nvlist_free(fsaclnv); 2974249195Smm return (SET_ERROR(EINVAL)); 2975185029Spjd } 2976185029Spjd 2977185029Spjd /* 2978185029Spjd * If we don't have PRIV_SYS_MOUNT, then validate 2979185029Spjd * that user is allowed to hand out each permission in 2980185029Spjd * the nvlist(s) 2981185029Spjd */ 2982185029Spjd 2983185029Spjd error = secpolicy_zfs(CRED()); 2984248571Smm if (error != 0) { 2985185029Spjd if (zc->zc_perm_action == B_FALSE) { 2986185029Spjd error = dsl_deleg_can_allow(zc->zc_name, 2987185029Spjd fsaclnv, CRED()); 2988185029Spjd } else { 2989185029Spjd error = dsl_deleg_can_unallow(zc->zc_name, 2990185029Spjd fsaclnv, CRED()); 2991185029Spjd } 2992185029Spjd } 2993185029Spjd 2994185029Spjd if (error == 0) 2995185029Spjd error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); 2996185029Spjd 2997185029Spjd nvlist_free(fsaclnv); 2998185029Spjd return (error); 2999185029Spjd} 3000185029Spjd 3001185029Spjd/* 3002185029Spjd * inputs: 3003185029Spjd * zc_name name of filesystem 3004185029Spjd * 3005185029Spjd * outputs: 3006185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 3007185029Spjd */ 3008185029Spjdstatic int 3009185029Spjdzfs_ioc_get_fsacl(zfs_cmd_t *zc) 3010185029Spjd{ 3011185029Spjd nvlist_t *nvp; 3012185029Spjd int error; 3013185029Spjd 3014185029Spjd if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { 3015185029Spjd error = put_nvlist(zc, nvp); 3016185029Spjd nvlist_free(nvp); 3017185029Spjd } 3018185029Spjd 3019185029Spjd return (error); 3020185029Spjd} 3021185029Spjd 3022185029Spjd/* 3023168404Spjd * Search the vfs list for a specified resource. Returns a pointer to it 3024168404Spjd * or NULL if no suitable entry is found. The caller of this routine 3025168404Spjd * is responsible for releasing the returned vfs pointer. 3026168404Spjd */ 3027168404Spjdstatic vfs_t * 3028168404Spjdzfs_get_vfs(const char *resource) 3029168404Spjd{ 3030168404Spjd vfs_t *vfsp; 3031168404Spjd 3032168404Spjd mtx_lock(&mountlist_mtx); 3033168404Spjd TAILQ_FOREACH(vfsp, &mountlist, mnt_list) { 3034185029Spjd if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { 3035168404Spjd VFS_HOLD(vfsp); 3036168404Spjd break; 3037168404Spjd } 3038168404Spjd } 3039168404Spjd mtx_unlock(&mountlist_mtx); 3040168404Spjd return (vfsp); 3041168404Spjd} 3042168404Spjd 3043185029Spjd/* ARGSUSED */ 3044168404Spjdstatic void 3045185029Spjdzfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) 3046168404Spjd{ 3047185029Spjd zfs_creat_t *zct = arg; 3048168404Spjd 3049185029Spjd zfs_create_fs(os, cr, zct->zct_zplprops, tx); 3050168404Spjd} 3051168404Spjd 3052185029Spjd#define ZFS_PROP_UNDEFINED ((uint64_t)-1) 3053185029Spjd 3054185029Spjd/* 3055185029Spjd * inputs: 3056251631Sdelphij * os parent objset pointer (NULL if root fs) 3057251631Sdelphij * fuids_ok fuids allowed in this version of the spa? 3058251631Sdelphij * sa_ok SAs allowed in this version of the spa? 3059185029Spjd * createprops list of properties requested by creator 3060185029Spjd * 3061185029Spjd * outputs: 3062185029Spjd * zplprops values for the zplprops we attach to the master node object 3063185029Spjd * is_ci true if requested file system will be purely case-insensitive 3064185029Spjd * 3065185029Spjd * Determine the settings for utf8only, normalization and 3066185029Spjd * casesensitivity. Specific values may have been requested by the 3067185029Spjd * creator and/or we can inherit values from the parent dataset. If 3068185029Spjd * the file system is of too early a vintage, a creator can not 3069185029Spjd * request settings for these properties, even if the requested 3070185029Spjd * setting is the default value. We don't actually want to create dsl 3071185029Spjd * properties for these, so remove them from the source nvlist after 3072185029Spjd * processing. 3073185029Spjd */ 3074168404Spjdstatic int 3075209962Smmzfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, 3076219089Spjd boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, 3077219089Spjd nvlist_t *zplprops, boolean_t *is_ci) 3078185029Spjd{ 3079185029Spjd uint64_t sense = ZFS_PROP_UNDEFINED; 3080185029Spjd uint64_t norm = ZFS_PROP_UNDEFINED; 3081185029Spjd uint64_t u8 = ZFS_PROP_UNDEFINED; 3082185029Spjd 3083185029Spjd ASSERT(zplprops != NULL); 3084185029Spjd 3085185029Spjd /* 3086185029Spjd * Pull out creator prop choices, if any. 3087185029Spjd */ 3088185029Spjd if (createprops) { 3089185029Spjd (void) nvlist_lookup_uint64(createprops, 3090185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); 3091185029Spjd (void) nvlist_lookup_uint64(createprops, 3092185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); 3093185029Spjd (void) nvlist_remove_all(createprops, 3094185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE)); 3095185029Spjd (void) nvlist_lookup_uint64(createprops, 3096185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); 3097185029Spjd (void) nvlist_remove_all(createprops, 3098185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 3099185029Spjd (void) nvlist_lookup_uint64(createprops, 3100185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), &sense); 3101185029Spjd (void) nvlist_remove_all(createprops, 3102185029Spjd zfs_prop_to_name(ZFS_PROP_CASE)); 3103185029Spjd } 3104185029Spjd 3105185029Spjd /* 3106185029Spjd * If the zpl version requested is whacky or the file system 3107185029Spjd * or pool is version is too "young" to support normalization 3108185029Spjd * and the creator tried to set a value for one of the props, 3109185029Spjd * error out. 3110185029Spjd */ 3111185029Spjd if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || 3112185029Spjd (zplver >= ZPL_VERSION_FUID && !fuids_ok) || 3113219089Spjd (zplver >= ZPL_VERSION_SA && !sa_ok) || 3114185029Spjd (zplver < ZPL_VERSION_NORMALIZATION && 3115185029Spjd (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || 3116185029Spjd sense != ZFS_PROP_UNDEFINED))) 3117249195Smm return (SET_ERROR(ENOTSUP)); 3118185029Spjd 3119185029Spjd /* 3120185029Spjd * Put the version in the zplprops 3121185029Spjd */ 3122185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3123185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); 3124185029Spjd 3125185029Spjd if (norm == ZFS_PROP_UNDEFINED) 3126185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); 3127185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3128185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); 3129185029Spjd 3130185029Spjd /* 3131185029Spjd * If we're normalizing, names must always be valid UTF-8 strings. 3132185029Spjd */ 3133185029Spjd if (norm) 3134185029Spjd u8 = 1; 3135185029Spjd if (u8 == ZFS_PROP_UNDEFINED) 3136185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); 3137185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3138185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); 3139185029Spjd 3140185029Spjd if (sense == ZFS_PROP_UNDEFINED) 3141185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); 3142185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3143185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); 3144185029Spjd 3145185029Spjd if (is_ci) 3146185029Spjd *is_ci = (sense == ZFS_CASE_INSENSITIVE); 3147185029Spjd 3148185029Spjd return (0); 3149185029Spjd} 3150185029Spjd 3151185029Spjdstatic int 3152185029Spjdzfs_fill_zplprops(const char *dataset, nvlist_t *createprops, 3153185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3154185029Spjd{ 3155219089Spjd boolean_t fuids_ok, sa_ok; 3156185029Spjd uint64_t zplver = ZPL_VERSION; 3157185029Spjd objset_t *os = NULL; 3158185029Spjd char parentname[MAXNAMELEN]; 3159185029Spjd char *cp; 3160219089Spjd spa_t *spa; 3161219089Spjd uint64_t spa_vers; 3162185029Spjd int error; 3163185029Spjd 3164185029Spjd (void) strlcpy(parentname, dataset, sizeof (parentname)); 3165185029Spjd cp = strrchr(parentname, '/'); 3166185029Spjd ASSERT(cp != NULL); 3167185029Spjd cp[0] = '\0'; 3168185029Spjd 3169219089Spjd if ((error = spa_open(dataset, &spa, FTAG)) != 0) 3170219089Spjd return (error); 3171185029Spjd 3172219089Spjd spa_vers = spa_version(spa); 3173219089Spjd spa_close(spa, FTAG); 3174219089Spjd 3175219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3176219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3177219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3178219089Spjd 3179185029Spjd /* 3180185029Spjd * Open parent object set so we can inherit zplprop values. 3181185029Spjd */ 3182219089Spjd if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) 3183185029Spjd return (error); 3184185029Spjd 3185219089Spjd error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, 3186185029Spjd zplprops, is_ci); 3187219089Spjd dmu_objset_rele(os, FTAG); 3188185029Spjd return (error); 3189185029Spjd} 3190185029Spjd 3191185029Spjdstatic int 3192185029Spjdzfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, 3193185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3194185029Spjd{ 3195219089Spjd boolean_t fuids_ok; 3196219089Spjd boolean_t sa_ok; 3197185029Spjd uint64_t zplver = ZPL_VERSION; 3198185029Spjd int error; 3199185029Spjd 3200219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3201219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3202219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3203185029Spjd 3204219089Spjd error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, 3205219089Spjd createprops, zplprops, is_ci); 3206185029Spjd return (error); 3207185029Spjd} 3208185029Spjd 3209185029Spjd/* 3210248571Smm * innvl: { 3211248571Smm * "type" -> dmu_objset_type_t (int32) 3212248571Smm * (optional) "props" -> { prop -> value } 3213248571Smm * } 3214185029Spjd * 3215248571Smm * outnvl: propname -> error code (int32) 3216185029Spjd */ 3217185029Spjdstatic int 3218248571Smmzfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3219168404Spjd{ 3220168404Spjd int error = 0; 3221248571Smm zfs_creat_t zct = { 0 }; 3222185029Spjd nvlist_t *nvprops = NULL; 3223185029Spjd void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); 3224248571Smm int32_t type32; 3225248571Smm dmu_objset_type_t type; 3226248571Smm boolean_t is_insensitive = B_FALSE; 3227168404Spjd 3228248571Smm if (nvlist_lookup_int32(innvl, "type", &type32) != 0) 3229249195Smm return (SET_ERROR(EINVAL)); 3230248571Smm type = type32; 3231248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3232248571Smm 3233168404Spjd switch (type) { 3234168404Spjd case DMU_OST_ZFS: 3235168404Spjd cbfunc = zfs_create_cb; 3236168404Spjd break; 3237168404Spjd 3238168404Spjd case DMU_OST_ZVOL: 3239168404Spjd cbfunc = zvol_create_cb; 3240168404Spjd break; 3241168404Spjd 3242168404Spjd default: 3243168404Spjd cbfunc = NULL; 3244185029Spjd break; 3245168404Spjd } 3246248571Smm if (strchr(fsname, '@') || 3247248571Smm strchr(fsname, '%')) 3248249195Smm return (SET_ERROR(EINVAL)); 3249168404Spjd 3250185029Spjd zct.zct_props = nvprops; 3251168404Spjd 3252248571Smm if (cbfunc == NULL) 3253249195Smm return (SET_ERROR(EINVAL)); 3254168404Spjd 3255248571Smm if (type == DMU_OST_ZVOL) { 3256248571Smm uint64_t volsize, volblocksize; 3257185029Spjd 3258248571Smm if (nvprops == NULL) 3259249195Smm return (SET_ERROR(EINVAL)); 3260248571Smm if (nvlist_lookup_uint64(nvprops, 3261248571Smm zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) 3262249195Smm return (SET_ERROR(EINVAL)); 3263185029Spjd 3264248571Smm if ((error = nvlist_lookup_uint64(nvprops, 3265248571Smm zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3266248571Smm &volblocksize)) != 0 && error != ENOENT) 3267249195Smm return (SET_ERROR(EINVAL)); 3268168404Spjd 3269248571Smm if (error != 0) 3270248571Smm volblocksize = zfs_prop_default_numeric( 3271248571Smm ZFS_PROP_VOLBLOCKSIZE); 3272168404Spjd 3273248571Smm if ((error = zvol_check_volblocksize( 3274248571Smm volblocksize)) != 0 || 3275248571Smm (error = zvol_check_volsize(volsize, 3276248571Smm volblocksize)) != 0) 3277248571Smm return (error); 3278248571Smm } else if (type == DMU_OST_ZFS) { 3279248571Smm int error; 3280168404Spjd 3281248571Smm /* 3282248571Smm * We have to have normalization and 3283248571Smm * case-folding flags correct when we do the 3284248571Smm * file system creation, so go figure them out 3285248571Smm * now. 3286248571Smm */ 3287248571Smm VERIFY(nvlist_alloc(&zct.zct_zplprops, 3288248571Smm NV_UNIQUE_NAME, KM_SLEEP) == 0); 3289248571Smm error = zfs_fill_zplprops(fsname, nvprops, 3290248571Smm zct.zct_zplprops, &is_insensitive); 3291248571Smm if (error != 0) { 3292248571Smm nvlist_free(zct.zct_zplprops); 3293248571Smm return (error); 3294168404Spjd } 3295168404Spjd } 3296168404Spjd 3297248571Smm error = dmu_objset_create(fsname, type, 3298248571Smm is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); 3299248571Smm nvlist_free(zct.zct_zplprops); 3300248571Smm 3301168404Spjd /* 3302168404Spjd * It would be nice to do this atomically. 3303168404Spjd */ 3304168404Spjd if (error == 0) { 3305248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3306248571Smm nvprops, outnvl); 3307219089Spjd if (error != 0) 3308248571Smm (void) dsl_destroy_head(fsname); 3309168404Spjd } 3310219089Spjd#ifdef __FreeBSD__ 3311219089Spjd if (error == 0 && type == DMU_OST_ZVOL) 3312248571Smm zvol_create_minors(fsname); 3313219089Spjd#endif 3314168404Spjd return (error); 3315168404Spjd} 3316168404Spjd 3317185029Spjd/* 3318248571Smm * innvl: { 3319248571Smm * "origin" -> name of origin snapshot 3320248571Smm * (optional) "props" -> { prop -> value } 3321248571Smm * } 3322185029Spjd * 3323248571Smm * outnvl: propname -> error code (int32) 3324185029Spjd */ 3325185029Spjdstatic int 3326248571Smmzfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3327168404Spjd{ 3328248571Smm int error = 0; 3329185029Spjd nvlist_t *nvprops = NULL; 3330248571Smm char *origin_name; 3331185029Spjd 3332248571Smm if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) 3333249195Smm return (SET_ERROR(EINVAL)); 3334248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3335185029Spjd 3336248571Smm if (strchr(fsname, '@') || 3337248571Smm strchr(fsname, '%')) 3338249195Smm return (SET_ERROR(EINVAL)); 3339248571Smm 3340248571Smm if (dataset_namecheck(origin_name, NULL, NULL) != 0) 3341249195Smm return (SET_ERROR(EINVAL)); 3342248571Smm error = dmu_objset_clone(fsname, origin_name); 3343248571Smm if (error != 0) 3344185029Spjd return (error); 3345185029Spjd 3346248571Smm /* 3347248571Smm * It would be nice to do this atomically. 3348248571Smm */ 3349248571Smm if (error == 0) { 3350248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3351248571Smm nvprops, outnvl); 3352248571Smm if (error != 0) 3353248571Smm (void) dsl_destroy_head(fsname); 3354248571Smm } 3355264341Smav#ifdef __FreeBSD__ 3356264341Smav if (error == 0) 3357264341Smav zvol_create_minors(fsname); 3358264341Smav#endif 3359248571Smm return (error); 3360248571Smm} 3361185029Spjd 3362248571Smm/* 3363248571Smm * innvl: { 3364248571Smm * "snaps" -> { snapshot1, snapshot2 } 3365248571Smm * (optional) "props" -> { prop -> value (string) } 3366248571Smm * } 3367248571Smm * 3368248571Smm * outnvl: snapshot -> error code (int32) 3369248571Smm */ 3370248571Smmstatic int 3371248571Smmzfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3372248571Smm{ 3373248571Smm nvlist_t *snaps; 3374248571Smm nvlist_t *props = NULL; 3375248571Smm int error, poollen; 3376248571Smm nvpair_t *pair; 3377248571Smm 3378248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &props); 3379248571Smm if ((error = zfs_check_userprops(poolname, props)) != 0) 3380248571Smm return (error); 3381248571Smm 3382248571Smm if (!nvlist_empty(props) && 3383248571Smm zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) 3384249195Smm return (SET_ERROR(ENOTSUP)); 3385248571Smm 3386248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3387249195Smm return (SET_ERROR(EINVAL)); 3388248571Smm poollen = strlen(poolname); 3389248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3390248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3391248571Smm const char *name = nvpair_name(pair); 3392248571Smm const char *cp = strchr(name, '@'); 3393248571Smm 3394248571Smm /* 3395248571Smm * The snap name must contain an @, and the part after it must 3396248571Smm * contain only valid characters. 3397248571Smm */ 3398260183Sdelphij if (cp == NULL || 3399260183Sdelphij zfs_component_namecheck(cp + 1, NULL, NULL) != 0) 3400249195Smm return (SET_ERROR(EINVAL)); 3401248571Smm 3402248571Smm /* 3403248571Smm * The snap must be in the specified pool. 3404248571Smm */ 3405248571Smm if (strncmp(name, poolname, poollen) != 0 || 3406248571Smm (name[poollen] != '/' && name[poollen] != '@')) 3407249195Smm return (SET_ERROR(EXDEV)); 3408248571Smm 3409248571Smm /* This must be the only snap of this fs. */ 3410248571Smm for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair); 3411248571Smm pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { 3412248571Smm if (strncmp(name, nvpair_name(pair2), cp - name + 1) 3413248571Smm == 0) { 3414249195Smm return (SET_ERROR(EXDEV)); 3415248571Smm } 3416248571Smm } 3417185029Spjd } 3418209962Smm 3419248571Smm error = dsl_dataset_snapshot(snaps, props, outnvl); 3420185029Spjd return (error); 3421168404Spjd} 3422168404Spjd 3423248571Smm/* 3424248571Smm * innvl: "message" -> string 3425248571Smm */ 3426248571Smm/* ARGSUSED */ 3427248571Smmstatic int 3428248571Smmzfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) 3429168404Spjd{ 3430248571Smm char *message; 3431248571Smm spa_t *spa; 3432248571Smm int error; 3433248571Smm char *poolname; 3434168404Spjd 3435248571Smm /* 3436248571Smm * The poolname in the ioctl is not set, we get it from the TSD, 3437248571Smm * which was set at the end of the last successful ioctl that allows 3438248571Smm * logging. The secpolicy func already checked that it is set. 3439248571Smm * Only one log ioctl is allowed after each successful ioctl, so 3440248571Smm * we clear the TSD here. 3441248571Smm */ 3442248571Smm poolname = tsd_get(zfs_allow_log_key); 3443248571Smm (void) tsd_set(zfs_allow_log_key, NULL); 3444248571Smm error = spa_open(poolname, &spa, FTAG); 3445248571Smm strfree(poolname); 3446248571Smm if (error != 0) 3447248571Smm return (error); 3448248571Smm 3449248571Smm if (nvlist_lookup_string(innvl, "message", &message) != 0) { 3450248571Smm spa_close(spa, FTAG); 3451249195Smm return (SET_ERROR(EINVAL)); 3452168404Spjd } 3453168404Spjd 3454248571Smm if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 3455248571Smm spa_close(spa, FTAG); 3456249195Smm return (SET_ERROR(ENOTSUP)); 3457248571Smm } 3458168404Spjd 3459248571Smm error = spa_history_log(spa, message); 3460248571Smm spa_close(spa, FTAG); 3461248571Smm return (error); 3462248571Smm} 3463248571Smm 3464248571Smm/* 3465248571Smm * The dp_config_rwlock must not be held when calling this, because the 3466248571Smm * unmount may need to write out data. 3467248571Smm * 3468248571Smm * This function is best-effort. Callers must deal gracefully if it 3469248571Smm * remains mounted (or is remounted after this call). 3470251633Sdelphij * 3471251633Sdelphij * Returns 0 if the argument is not a snapshot, or it is not currently a 3472251633Sdelphij * filesystem, or we were able to unmount it. Returns error code otherwise. 3473248571Smm */ 3474251633Sdelphijint 3475248571Smmzfs_unmount_snap(const char *snapname) 3476248571Smm{ 3477248571Smm vfs_t *vfsp; 3478248571Smm zfsvfs_t *zfsvfs; 3479251633Sdelphij int err; 3480248571Smm 3481248571Smm if (strchr(snapname, '@') == NULL) 3482251633Sdelphij return (0); 3483248571Smm 3484248571Smm vfsp = zfs_get_vfs(snapname); 3485248571Smm if (vfsp == NULL) 3486251633Sdelphij return (0); 3487248571Smm 3488248571Smm zfsvfs = vfsp->vfs_data; 3489248571Smm ASSERT(!dsl_pool_config_held(dmu_objset_pool(zfsvfs->z_os))); 3490248571Smm 3491251633Sdelphij err = vn_vfswlock(vfsp->vfs_vnodecovered); 3492248571Smm VFS_RELE(vfsp); 3493251633Sdelphij if (err != 0) 3494251633Sdelphij return (SET_ERROR(err)); 3495248571Smm 3496248571Smm /* 3497248571Smm * Always force the unmount for snapshots. 3498248571Smm */ 3499248571Smm 3500248571Smm#ifdef illumos 3501248571Smm (void) dounmount(vfsp, MS_FORCE, kcred); 3502248571Smm#else 3503248571Smm mtx_lock(&Giant); /* dounmount() */ 3504251633Sdelphij (void) dounmount(vfsp, MS_FORCE, curthread); 3505248571Smm mtx_unlock(&Giant); /* dounmount() */ 3506248571Smm#endif 3507251633Sdelphij return (0); 3508248571Smm} 3509248571Smm 3510248571Smm/* ARGSUSED */ 3511248571Smmstatic int 3512248571Smmzfs_unmount_snap_cb(const char *snapname, void *arg) 3513248571Smm{ 3514251633Sdelphij return (zfs_unmount_snap(snapname)); 3515168404Spjd} 3516168404Spjd 3517185029Spjd/* 3518248571Smm * When a clone is destroyed, its origin may also need to be destroyed, 3519248571Smm * in which case it must be unmounted. This routine will do that unmount 3520248571Smm * if necessary. 3521248571Smm */ 3522248571Smmvoid 3523248571Smmzfs_destroy_unmount_origin(const char *fsname) 3524248571Smm{ 3525248571Smm int error; 3526248571Smm objset_t *os; 3527248571Smm dsl_dataset_t *ds; 3528248571Smm 3529248571Smm error = dmu_objset_hold(fsname, FTAG, &os); 3530248571Smm if (error != 0) 3531248571Smm return; 3532248571Smm ds = dmu_objset_ds(os); 3533248571Smm if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { 3534248571Smm char originname[MAXNAMELEN]; 3535248571Smm dsl_dataset_name(ds->ds_prev, originname); 3536248571Smm dmu_objset_rele(os, FTAG); 3537251633Sdelphij (void) zfs_unmount_snap(originname); 3538248571Smm } else { 3539248571Smm dmu_objset_rele(os, FTAG); 3540248571Smm } 3541248571Smm} 3542248571Smm 3543248571Smm/* 3544248571Smm * innvl: { 3545248571Smm * "snaps" -> { snapshot1, snapshot2 } 3546248571Smm * (optional boolean) "defer" 3547248571Smm * } 3548185029Spjd * 3549248571Smm * outnvl: snapshot -> error code (int32) 3550248571Smm * 3551185029Spjd */ 3552260183Sdelphij/* ARGSUSED */ 3553168404Spjdstatic int 3554248571Smmzfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3555168404Spjd{ 3556248571Smm nvlist_t *snaps; 3557228103Smm nvpair_t *pair; 3558248571Smm boolean_t defer; 3559168404Spjd 3560248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3561249195Smm return (SET_ERROR(EINVAL)); 3562248571Smm defer = nvlist_exists(innvl, "defer"); 3563228103Smm 3564248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3565248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3566260183Sdelphij (void) zfs_unmount_snap(nvpair_name(pair)); 3567260183Sdelphij } 3568260183Sdelphij 3569260183Sdelphij return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); 3570260183Sdelphij} 3571260183Sdelphij 3572260183Sdelphij/* 3573260183Sdelphij * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. 3574260183Sdelphij * All bookmarks must be in the same pool. 3575260183Sdelphij * 3576260183Sdelphij * innvl: { 3577260183Sdelphij * bookmark1 -> snapshot1, bookmark2 -> snapshot2 3578260183Sdelphij * } 3579260183Sdelphij * 3580260183Sdelphij * outnvl: bookmark -> error code (int32) 3581260183Sdelphij * 3582260183Sdelphij */ 3583260183Sdelphij/* ARGSUSED */ 3584260183Sdelphijstatic int 3585260183Sdelphijzfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3586260183Sdelphij{ 3587260183Sdelphij for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); 3588260183Sdelphij pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { 3589260183Sdelphij char *snap_name; 3590260183Sdelphij 3591260183Sdelphij /* 3592260183Sdelphij * Verify the snapshot argument. 3593260183Sdelphij */ 3594260183Sdelphij if (nvpair_value_string(pair, &snap_name) != 0) 3595260183Sdelphij return (SET_ERROR(EINVAL)); 3596260183Sdelphij 3597260183Sdelphij 3598260183Sdelphij /* Verify that the keys (bookmarks) are unique */ 3599260183Sdelphij for (nvpair_t *pair2 = nvlist_next_nvpair(innvl, pair); 3600260183Sdelphij pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { 3601260183Sdelphij if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) 3602260183Sdelphij return (SET_ERROR(EINVAL)); 3603260183Sdelphij } 3604260183Sdelphij } 3605260183Sdelphij 3606260183Sdelphij return (dsl_bookmark_create(innvl, outnvl)); 3607260183Sdelphij} 3608260183Sdelphij 3609260183Sdelphij/* 3610260183Sdelphij * innvl: { 3611260183Sdelphij * property 1, property 2, ... 3612260183Sdelphij * } 3613260183Sdelphij * 3614260183Sdelphij * outnvl: { 3615260183Sdelphij * bookmark name 1 -> { property 1, property 2, ... }, 3616260183Sdelphij * bookmark name 2 -> { property 1, property 2, ... } 3617260183Sdelphij * } 3618260183Sdelphij * 3619260183Sdelphij */ 3620260183Sdelphijstatic int 3621260183Sdelphijzfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3622260183Sdelphij{ 3623260183Sdelphij return (dsl_get_bookmarks(fsname, innvl, outnvl)); 3624260183Sdelphij} 3625260183Sdelphij 3626260183Sdelphij/* 3627260183Sdelphij * innvl: { 3628260183Sdelphij * bookmark name 1, bookmark name 2 3629260183Sdelphij * } 3630260183Sdelphij * 3631260183Sdelphij * outnvl: bookmark -> error code (int32) 3632260183Sdelphij * 3633260183Sdelphij */ 3634260183Sdelphijstatic int 3635260183Sdelphijzfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, 3636260183Sdelphij nvlist_t *outnvl) 3637260183Sdelphij{ 3638260183Sdelphij int error, poollen; 3639260183Sdelphij 3640260183Sdelphij poollen = strlen(poolname); 3641260183Sdelphij for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); 3642260183Sdelphij pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { 3643228103Smm const char *name = nvpair_name(pair); 3644260183Sdelphij const char *cp = strchr(name, '#'); 3645248571Smm 3646228103Smm /* 3647260183Sdelphij * The bookmark name must contain an #, and the part after it 3648260183Sdelphij * must contain only valid characters. 3649228103Smm */ 3650260183Sdelphij if (cp == NULL || 3651260183Sdelphij zfs_component_namecheck(cp + 1, NULL, NULL) != 0) 3652260183Sdelphij return (SET_ERROR(EINVAL)); 3653260183Sdelphij 3654260183Sdelphij /* 3655260183Sdelphij * The bookmark must be in the specified pool. 3656260183Sdelphij */ 3657248571Smm if (strncmp(name, poolname, poollen) != 0 || 3658260183Sdelphij (name[poollen] != '/' && name[poollen] != '#')) 3659249195Smm return (SET_ERROR(EXDEV)); 3660242862Savg (void) zvol_remove_minor(name); 3661228103Smm } 3662228103Smm 3663260183Sdelphij error = dsl_bookmark_destroy(innvl, outnvl); 3664260183Sdelphij return (error); 3665168404Spjd} 3666168404Spjd 3667185029Spjd/* 3668185029Spjd * inputs: 3669185029Spjd * zc_name name of dataset to destroy 3670185029Spjd * zc_objset_type type of objset 3671219089Spjd * zc_defer_destroy mark for deferred destroy 3672185029Spjd * 3673185029Spjd * outputs: none 3674185029Spjd */ 3675168404Spjdstatic int 3676168404Spjdzfs_ioc_destroy(zfs_cmd_t *zc) 3677168404Spjd{ 3678219089Spjd int err; 3679168404Spjd 3680251633Sdelphij if (zc->zc_objset_type == DMU_OST_ZFS) { 3681251633Sdelphij err = zfs_unmount_snap(zc->zc_name); 3682251633Sdelphij if (err != 0) 3683251633Sdelphij return (err); 3684251633Sdelphij } 3685251633Sdelphij 3686248571Smm if (strchr(zc->zc_name, '@')) 3687248571Smm err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); 3688248571Smm else 3689248571Smm err = dsl_destroy_head(zc->zc_name); 3690219089Spjd if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) 3691219089Spjd (void) zvol_remove_minor(zc->zc_name); 3692219089Spjd return (err); 3693168404Spjd} 3694168404Spjd 3695185029Spjd/* 3696254587Sdelphij * fsname is name of dataset to rollback (to most recent snapshot) 3697185029Spjd * 3698254587Sdelphij * innvl is not used. 3699254587Sdelphij * 3700254587Sdelphij * outnvl: "target" -> name of most recent snapshot 3701254587Sdelphij * } 3702185029Spjd */ 3703254587Sdelphij/* ARGSUSED */ 3704168404Spjdstatic int 3705254587Sdelphijzfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) 3706168404Spjd{ 3707248571Smm zfsvfs_t *zfsvfs; 3708185029Spjd int error; 3709185029Spjd 3710254587Sdelphij if (getzfsvfs(fsname, &zfsvfs) == 0) { 3711219089Spjd error = zfs_suspend_fs(zfsvfs); 3712185029Spjd if (error == 0) { 3713185029Spjd int resume_err; 3714185029Spjd 3715254587Sdelphij error = dsl_dataset_rollback(fsname, zfsvfs, outnvl); 3716254587Sdelphij resume_err = zfs_resume_fs(zfsvfs, fsname); 3717185029Spjd error = error ? error : resume_err; 3718185029Spjd } 3719185029Spjd VFS_RELE(zfsvfs->z_vfs); 3720185029Spjd } else { 3721254587Sdelphij error = dsl_dataset_rollback(fsname, NULL, outnvl); 3722185029Spjd } 3723248571Smm return (error); 3724248571Smm} 3725185029Spjd 3726248571Smmstatic int 3727248571Smmrecursive_unmount(const char *fsname, void *arg) 3728248571Smm{ 3729248571Smm const char *snapname = arg; 3730248571Smm char fullname[MAXNAMELEN]; 3731219089Spjd 3732248571Smm (void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname); 3733251633Sdelphij return (zfs_unmount_snap(fullname)); 3734168404Spjd} 3735168404Spjd 3736185029Spjd/* 3737185029Spjd * inputs: 3738185029Spjd * zc_name old name of dataset 3739185029Spjd * zc_value new name of dataset 3740185029Spjd * zc_cookie recursive flag (only valid for snapshots) 3741185029Spjd * 3742185029Spjd * outputs: none 3743185029Spjd */ 3744168404Spjdstatic int 3745168404Spjdzfs_ioc_rename(zfs_cmd_t *zc) 3746168404Spjd{ 3747248571Smm boolean_t recursive = zc->zc_cookie & 1; 3748248571Smm#ifdef __FreeBSD__ 3749248571Smm boolean_t allow_mounted = zc->zc_cookie & 2; 3750248571Smm#endif 3751248571Smm char *at; 3752168676Spjd 3753168404Spjd zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 3754185029Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 3755185029Spjd strchr(zc->zc_value, '%')) 3756249195Smm return (SET_ERROR(EINVAL)); 3757168404Spjd 3758248571Smm at = strchr(zc->zc_name, '@'); 3759248571Smm if (at != NULL) { 3760248571Smm /* snaps must be in same fs */ 3761253926Ssmh int error; 3762253926Ssmh 3763248571Smm if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) 3764249195Smm return (SET_ERROR(EXDEV)); 3765248571Smm *at = '\0'; 3766248571Smm#ifdef illumos 3767248571Smm if (zc->zc_objset_type == DMU_OST_ZFS) { 3768248571Smm#else 3769248571Smm if (zc->zc_objset_type == DMU_OST_ZFS && allow_mounted) { 3770248571Smm#endif 3771253926Ssmh error = dmu_objset_find(zc->zc_name, 3772248571Smm recursive_unmount, at + 1, 3773248571Smm recursive ? DS_FIND_CHILDREN : 0); 3774253926Ssmh if (error != 0) { 3775253926Ssmh *at = '@'; 3776248571Smm return (error); 3777253926Ssmh } 3778248571Smm } 3779253926Ssmh error = dsl_dataset_rename_snapshot(zc->zc_name, 3780253926Ssmh at + 1, strchr(zc->zc_value, '@') + 1, recursive); 3781253926Ssmh *at = '@'; 3782253926Ssmh 3783253926Ssmh return (error); 3784248571Smm } else { 3785248571Smm#ifdef illumos 3786248571Smm if (zc->zc_objset_type == DMU_OST_ZVOL) 3787248571Smm (void) zvol_remove_minor(zc->zc_name); 3788248571Smm#endif 3789248571Smm return (dsl_dir_rename(zc->zc_name, zc->zc_value)); 3790168404Spjd } 3791168404Spjd} 3792168404Spjd 3793219089Spjdstatic int 3794219089Spjdzfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) 3795185029Spjd{ 3796219089Spjd const char *propname = nvpair_name(pair); 3797219089Spjd boolean_t issnap = (strchr(dsname, '@') != NULL); 3798219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 3799219089Spjd uint64_t intval; 3800219089Spjd int err; 3801219089Spjd 3802219089Spjd if (prop == ZPROP_INVAL) { 3803219089Spjd if (zfs_prop_user(propname)) { 3804219089Spjd if (err = zfs_secpolicy_write_perms(dsname, 3805219089Spjd ZFS_DELEG_PERM_USERPROP, cr)) 3806219089Spjd return (err); 3807219089Spjd return (0); 3808219089Spjd } 3809219089Spjd 3810219089Spjd if (!issnap && zfs_prop_userquota(propname)) { 3811219089Spjd const char *perm = NULL; 3812219089Spjd const char *uq_prefix = 3813219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; 3814219089Spjd const char *gq_prefix = 3815219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; 3816219089Spjd 3817219089Spjd if (strncmp(propname, uq_prefix, 3818219089Spjd strlen(uq_prefix)) == 0) { 3819219089Spjd perm = ZFS_DELEG_PERM_USERQUOTA; 3820219089Spjd } else if (strncmp(propname, gq_prefix, 3821219089Spjd strlen(gq_prefix)) == 0) { 3822219089Spjd perm = ZFS_DELEG_PERM_GROUPQUOTA; 3823219089Spjd } else { 3824219089Spjd /* USERUSED and GROUPUSED are read-only */ 3825249195Smm return (SET_ERROR(EINVAL)); 3826219089Spjd } 3827219089Spjd 3828219089Spjd if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) 3829219089Spjd return (err); 3830219089Spjd return (0); 3831219089Spjd } 3832219089Spjd 3833249195Smm return (SET_ERROR(EINVAL)); 3834219089Spjd } 3835219089Spjd 3836219089Spjd if (issnap) 3837249195Smm return (SET_ERROR(EINVAL)); 3838219089Spjd 3839219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 3840219089Spjd /* 3841219089Spjd * dsl_prop_get_all_impl() returns properties in this 3842219089Spjd * format. 3843219089Spjd */ 3844219089Spjd nvlist_t *attrs; 3845219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 3846219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3847219089Spjd &pair) == 0); 3848219089Spjd } 3849219089Spjd 3850219089Spjd /* 3851219089Spjd * Check that this value is valid for this pool version 3852219089Spjd */ 3853219089Spjd switch (prop) { 3854219089Spjd case ZFS_PROP_COMPRESSION: 3855219089Spjd /* 3856219089Spjd * If the user specified gzip compression, make sure 3857219089Spjd * the SPA supports it. We ignore any errors here since 3858219089Spjd * we'll catch them later. 3859219089Spjd */ 3860219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 3861219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 3862219089Spjd if (intval >= ZIO_COMPRESS_GZIP_1 && 3863219089Spjd intval <= ZIO_COMPRESS_GZIP_9 && 3864219089Spjd zfs_earlier_version(dsname, 3865219089Spjd SPA_VERSION_GZIP_COMPRESSION)) { 3866249195Smm return (SET_ERROR(ENOTSUP)); 3867219089Spjd } 3868219089Spjd 3869219089Spjd if (intval == ZIO_COMPRESS_ZLE && 3870219089Spjd zfs_earlier_version(dsname, 3871219089Spjd SPA_VERSION_ZLE_COMPRESSION)) 3872249195Smm return (SET_ERROR(ENOTSUP)); 3873219089Spjd 3874246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 3875246586Sdelphij spa_t *spa; 3876246586Sdelphij 3877246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 3878246586Sdelphij return (err); 3879246586Sdelphij 3880259813Sdelphij if (!spa_feature_is_enabled(spa, 3881259813Sdelphij SPA_FEATURE_LZ4_COMPRESS)) { 3882246586Sdelphij spa_close(spa, FTAG); 3883249195Smm return (SET_ERROR(ENOTSUP)); 3884246586Sdelphij } 3885246586Sdelphij spa_close(spa, FTAG); 3886246586Sdelphij } 3887246586Sdelphij 3888219089Spjd /* 3889219089Spjd * If this is a bootable dataset then 3890219089Spjd * verify that the compression algorithm 3891219089Spjd * is supported for booting. We must return 3892219089Spjd * something other than ENOTSUP since it 3893219089Spjd * implies a downrev pool version. 3894219089Spjd */ 3895219089Spjd if (zfs_is_bootfs(dsname) && 3896219089Spjd !BOOTFS_COMPRESS_VALID(intval)) { 3897249195Smm return (SET_ERROR(ERANGE)); 3898219089Spjd } 3899219089Spjd } 3900219089Spjd break; 3901219089Spjd 3902219089Spjd case ZFS_PROP_COPIES: 3903219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) 3904249195Smm return (SET_ERROR(ENOTSUP)); 3905219089Spjd break; 3906219089Spjd 3907219089Spjd case ZFS_PROP_DEDUP: 3908219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) 3909249195Smm return (SET_ERROR(ENOTSUP)); 3910219089Spjd break; 3911219089Spjd 3912219089Spjd case ZFS_PROP_SHARESMB: 3913219089Spjd if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) 3914249195Smm return (SET_ERROR(ENOTSUP)); 3915219089Spjd break; 3916219089Spjd 3917219089Spjd case ZFS_PROP_ACLINHERIT: 3918219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 3919219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 3920219089Spjd if (intval == ZFS_ACL_PASSTHROUGH_X && 3921219089Spjd zfs_earlier_version(dsname, 3922219089Spjd SPA_VERSION_PASSTHROUGH_X)) 3923249195Smm return (SET_ERROR(ENOTSUP)); 3924219089Spjd } 3925219089Spjd break; 3926219089Spjd } 3927219089Spjd 3928219089Spjd return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); 3929219089Spjd} 3930219089Spjd 3931219089Spjd/* 3932246586Sdelphij * Checks for a race condition to make sure we don't increment a feature flag 3933246586Sdelphij * multiple times. 3934246586Sdelphij */ 3935246586Sdelphijstatic int 3936248571Smmzfs_prop_activate_feature_check(void *arg, dmu_tx_t *tx) 3937246586Sdelphij{ 3938248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 3939259813Sdelphij spa_feature_t *featurep = arg; 3940246586Sdelphij 3941259813Sdelphij if (!spa_feature_is_active(spa, *featurep)) 3942246586Sdelphij return (0); 3943246586Sdelphij else 3944249195Smm return (SET_ERROR(EBUSY)); 3945246586Sdelphij} 3946246586Sdelphij 3947246586Sdelphij/* 3948246586Sdelphij * The callback invoked on feature activation in the sync task caused by 3949246586Sdelphij * zfs_prop_activate_feature. 3950246586Sdelphij */ 3951246586Sdelphijstatic void 3952248571Smmzfs_prop_activate_feature_sync(void *arg, dmu_tx_t *tx) 3953246586Sdelphij{ 3954248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 3955259813Sdelphij spa_feature_t *featurep = arg; 3956246586Sdelphij 3957259813Sdelphij spa_feature_incr(spa, *featurep, tx); 3958246586Sdelphij} 3959246586Sdelphij 3960246586Sdelphij/* 3961248571Smm * Activates a feature on a pool in response to a property setting. This 3962248571Smm * creates a new sync task which modifies the pool to reflect the feature 3963248571Smm * as being active. 3964248571Smm */ 3965248571Smmstatic int 3966259813Sdelphijzfs_prop_activate_feature(spa_t *spa, spa_feature_t feature) 3967248571Smm{ 3968248571Smm int err; 3969248571Smm 3970248571Smm /* EBUSY here indicates that the feature is already active */ 3971248571Smm err = dsl_sync_task(spa_name(spa), 3972248571Smm zfs_prop_activate_feature_check, zfs_prop_activate_feature_sync, 3973259813Sdelphij &feature, 2); 3974248571Smm 3975248571Smm if (err != 0 && err != EBUSY) 3976248571Smm return (err); 3977248571Smm else 3978248571Smm return (0); 3979248571Smm} 3980248571Smm 3981248571Smm/* 3982219089Spjd * Removes properties from the given props list that fail permission checks 3983219089Spjd * needed to clear them and to restore them in case of a receive error. For each 3984219089Spjd * property, make sure we have both set and inherit permissions. 3985219089Spjd * 3986219089Spjd * Returns the first error encountered if any permission checks fail. If the 3987219089Spjd * caller provides a non-NULL errlist, it also gives the complete list of names 3988219089Spjd * of all the properties that failed a permission check along with the 3989219089Spjd * corresponding error numbers. The caller is responsible for freeing the 3990219089Spjd * returned errlist. 3991219089Spjd * 3992219089Spjd * If every property checks out successfully, zero is returned and the list 3993219089Spjd * pointed at by errlist is NULL. 3994219089Spjd */ 3995219089Spjdstatic int 3996219089Spjdzfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) 3997219089Spjd{ 3998185029Spjd zfs_cmd_t *zc; 3999219089Spjd nvpair_t *pair, *next_pair; 4000219089Spjd nvlist_t *errors; 4001219089Spjd int err, rv = 0; 4002185029Spjd 4003185029Spjd if (props == NULL) 4004219089Spjd return (0); 4005219089Spjd 4006219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 4007219089Spjd 4008185029Spjd zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); 4009185029Spjd (void) strcpy(zc->zc_name, dataset); 4010219089Spjd pair = nvlist_next_nvpair(props, NULL); 4011219089Spjd while (pair != NULL) { 4012219089Spjd next_pair = nvlist_next_nvpair(props, pair); 4013219089Spjd 4014219089Spjd (void) strcpy(zc->zc_value, nvpair_name(pair)); 4015219089Spjd if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || 4016248571Smm (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { 4017219089Spjd VERIFY(nvlist_remove_nvpair(props, pair) == 0); 4018219089Spjd VERIFY(nvlist_add_int32(errors, 4019219089Spjd zc->zc_value, err) == 0); 4020219089Spjd } 4021219089Spjd pair = next_pair; 4022185029Spjd } 4023185029Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 4024219089Spjd 4025219089Spjd if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { 4026219089Spjd nvlist_free(errors); 4027219089Spjd errors = NULL; 4028219089Spjd } else { 4029219089Spjd VERIFY(nvpair_value_int32(pair, &rv) == 0); 4030219089Spjd } 4031219089Spjd 4032219089Spjd if (errlist == NULL) 4033219089Spjd nvlist_free(errors); 4034219089Spjd else 4035219089Spjd *errlist = errors; 4036219089Spjd 4037219089Spjd return (rv); 4038185029Spjd} 4039185029Spjd 4040219089Spjdstatic boolean_t 4041219089Spjdpropval_equals(nvpair_t *p1, nvpair_t *p2) 4042219089Spjd{ 4043219089Spjd if (nvpair_type(p1) == DATA_TYPE_NVLIST) { 4044219089Spjd /* dsl_prop_get_all_impl() format */ 4045219089Spjd nvlist_t *attrs; 4046219089Spjd VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); 4047219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 4048219089Spjd &p1) == 0); 4049219089Spjd } 4050219089Spjd 4051219089Spjd if (nvpair_type(p2) == DATA_TYPE_NVLIST) { 4052219089Spjd nvlist_t *attrs; 4053219089Spjd VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); 4054219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 4055219089Spjd &p2) == 0); 4056219089Spjd } 4057219089Spjd 4058219089Spjd if (nvpair_type(p1) != nvpair_type(p2)) 4059219089Spjd return (B_FALSE); 4060219089Spjd 4061219089Spjd if (nvpair_type(p1) == DATA_TYPE_STRING) { 4062219089Spjd char *valstr1, *valstr2; 4063219089Spjd 4064219089Spjd VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); 4065219089Spjd VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); 4066219089Spjd return (strcmp(valstr1, valstr2) == 0); 4067219089Spjd } else { 4068219089Spjd uint64_t intval1, intval2; 4069219089Spjd 4070219089Spjd VERIFY(nvpair_value_uint64(p1, &intval1) == 0); 4071219089Spjd VERIFY(nvpair_value_uint64(p2, &intval2) == 0); 4072219089Spjd return (intval1 == intval2); 4073219089Spjd } 4074219089Spjd} 4075219089Spjd 4076185029Spjd/* 4077219089Spjd * Remove properties from props if they are not going to change (as determined 4078219089Spjd * by comparison with origprops). Remove them from origprops as well, since we 4079219089Spjd * do not need to clear or restore properties that won't change. 4080219089Spjd */ 4081219089Spjdstatic void 4082219089Spjdprops_reduce(nvlist_t *props, nvlist_t *origprops) 4083219089Spjd{ 4084219089Spjd nvpair_t *pair, *next_pair; 4085219089Spjd 4086219089Spjd if (origprops == NULL) 4087219089Spjd return; /* all props need to be received */ 4088219089Spjd 4089219089Spjd pair = nvlist_next_nvpair(props, NULL); 4090219089Spjd while (pair != NULL) { 4091219089Spjd const char *propname = nvpair_name(pair); 4092219089Spjd nvpair_t *match; 4093219089Spjd 4094219089Spjd next_pair = nvlist_next_nvpair(props, pair); 4095219089Spjd 4096219089Spjd if ((nvlist_lookup_nvpair(origprops, propname, 4097219089Spjd &match) != 0) || !propval_equals(pair, match)) 4098219089Spjd goto next; /* need to set received value */ 4099219089Spjd 4100219089Spjd /* don't clear the existing received value */ 4101219089Spjd (void) nvlist_remove_nvpair(origprops, match); 4102219089Spjd /* don't bother receiving the property */ 4103219089Spjd (void) nvlist_remove_nvpair(props, pair); 4104219089Spjdnext: 4105219089Spjd pair = next_pair; 4106219089Spjd } 4107219089Spjd} 4108219089Spjd 4109219089Spjd#ifdef DEBUG 4110219089Spjdstatic boolean_t zfs_ioc_recv_inject_err; 4111219089Spjd#endif 4112219089Spjd 4113219089Spjd/* 4114185029Spjd * inputs: 4115185029Spjd * zc_name name of containing filesystem 4116185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 4117185029Spjd * zc_value name of snapshot to create 4118185029Spjd * zc_string name of clone origin (if DRR_FLAG_CLONE) 4119185029Spjd * zc_cookie file descriptor to recv from 4120185029Spjd * zc_begin_record the BEGIN record of the stream (not byteswapped) 4121185029Spjd * zc_guid force flag 4122219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor 4123219089Spjd * zc_action_handle handle for this guid/ds mapping (or zero on first call) 4124185029Spjd * 4125185029Spjd * outputs: 4126185029Spjd * zc_cookie number of bytes read 4127219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 4128219089Spjd * zc_obj zprop_errflags_t 4129219089Spjd * zc_action_handle handle for this guid/ds mapping 4130185029Spjd */ 4131168404Spjdstatic int 4132185029Spjdzfs_ioc_recv(zfs_cmd_t *zc) 4133168404Spjd{ 4134185029Spjd file_t *fp; 4135185029Spjd dmu_recv_cookie_t drc; 4136185029Spjd boolean_t force = (boolean_t)zc->zc_guid; 4137219089Spjd int fd; 4138219089Spjd int error = 0; 4139219089Spjd int props_error = 0; 4140219089Spjd nvlist_t *errors; 4141185029Spjd offset_t off; 4142219089Spjd nvlist_t *props = NULL; /* sent properties */ 4143219089Spjd nvlist_t *origprops = NULL; /* existing properties */ 4144248571Smm char *origin = NULL; 4145185029Spjd char *tosnap; 4146185029Spjd char tofs[ZFS_MAXNAMELEN]; 4147255219Spjd cap_rights_t rights; 4148219089Spjd boolean_t first_recvd_props = B_FALSE; 4149168404Spjd 4150168404Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 4151185029Spjd strchr(zc->zc_value, '@') == NULL || 4152185029Spjd strchr(zc->zc_value, '%')) 4153249195Smm return (SET_ERROR(EINVAL)); 4154168404Spjd 4155185029Spjd (void) strcpy(tofs, zc->zc_value); 4156185029Spjd tosnap = strchr(tofs, '@'); 4157219089Spjd *tosnap++ = '\0'; 4158185029Spjd 4159185029Spjd if (zc->zc_nvlist_src != 0 && 4160185029Spjd (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 4161219089Spjd zc->zc_iflags, &props)) != 0) 4162168404Spjd return (error); 4163168404Spjd 4164185029Spjd fd = zc->zc_cookie; 4165255219Spjd fp = getf(fd, cap_rights_init(&rights, CAP_PREAD)); 4166185029Spjd if (fp == NULL) { 4167185029Spjd nvlist_free(props); 4168249195Smm return (SET_ERROR(EBADF)); 4169185029Spjd } 4170168404Spjd 4171219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 4172219089Spjd 4173248571Smm if (zc->zc_string[0]) 4174248571Smm origin = zc->zc_string; 4175248571Smm 4176248571Smm error = dmu_recv_begin(tofs, tosnap, 4177248571Smm &zc->zc_begin_record, force, origin, &drc); 4178248571Smm if (error != 0) 4179248571Smm goto out; 4180248571Smm 4181248571Smm /* 4182248571Smm * Set properties before we receive the stream so that they are applied 4183248571Smm * to the new data. Note that we must call dmu_recv_stream() if 4184248571Smm * dmu_recv_begin() succeeds. 4185248571Smm */ 4186248571Smm if (props != NULL && !drc.drc_newfs) { 4187248571Smm if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= 4188248571Smm SPA_VERSION_RECVD_PROPS && 4189248571Smm !dsl_prop_get_hasrecvd(tofs)) 4190219089Spjd first_recvd_props = B_TRUE; 4191219089Spjd 4192185029Spjd /* 4193219089Spjd * If new received properties are supplied, they are to 4194219089Spjd * completely replace the existing received properties, so stash 4195219089Spjd * away the existing ones. 4196185029Spjd */ 4197248571Smm if (dsl_prop_get_received(tofs, &origprops) == 0) { 4198219089Spjd nvlist_t *errlist = NULL; 4199219089Spjd /* 4200219089Spjd * Don't bother writing a property if its value won't 4201219089Spjd * change (and avoid the unnecessary security checks). 4202219089Spjd * 4203219089Spjd * The first receive after SPA_VERSION_RECVD_PROPS is a 4204219089Spjd * special case where we blow away all local properties 4205219089Spjd * regardless. 4206219089Spjd */ 4207219089Spjd if (!first_recvd_props) 4208219089Spjd props_reduce(props, origprops); 4209248571Smm if (zfs_check_clearable(tofs, origprops, &errlist) != 0) 4210219089Spjd (void) nvlist_merge(errors, errlist, 0); 4211219089Spjd nvlist_free(errlist); 4212248571Smm 4213248571Smm if (clear_received_props(tofs, origprops, 4214248571Smm first_recvd_props ? NULL : props) != 0) 4215248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4216248571Smm } else { 4217248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4218219089Spjd } 4219185029Spjd } 4220185029Spjd 4221248571Smm if (props != NULL) { 4222248571Smm props_error = dsl_prop_set_hasrecvd(tofs); 4223185029Spjd 4224248571Smm if (props_error == 0) { 4225248571Smm (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, 4226248571Smm props, errors); 4227219089Spjd } 4228219089Spjd } 4229219089Spjd 4230248571Smm if (zc->zc_nvlist_dst_size != 0 && 4231248571Smm (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || 4232248571Smm put_nvlist(zc, errors) != 0)) { 4233185029Spjd /* 4234219089Spjd * Caller made zc->zc_nvlist_dst less than the minimum expected 4235219089Spjd * size or supplied an invalid address. 4236185029Spjd */ 4237249195Smm props_error = SET_ERROR(EINVAL); 4238185029Spjd } 4239185029Spjd 4240185029Spjd off = fp->f_offset; 4241219089Spjd error = dmu_recv_stream(&drc, fp, &off, zc->zc_cleanup_fd, 4242219089Spjd &zc->zc_action_handle); 4243185029Spjd 4244219089Spjd if (error == 0) { 4245219089Spjd zfsvfs_t *zfsvfs = NULL; 4246185029Spjd 4247219089Spjd if (getzfsvfs(tofs, &zfsvfs) == 0) { 4248219089Spjd /* online recv */ 4249219089Spjd int end_err; 4250185029Spjd 4251219089Spjd error = zfs_suspend_fs(zfsvfs); 4252219089Spjd /* 4253219089Spjd * If the suspend fails, then the recv_end will 4254219089Spjd * likely also fail, and clean up after itself. 4255219089Spjd */ 4256253816Sdelphij end_err = dmu_recv_end(&drc, zfsvfs); 4257219089Spjd if (error == 0) 4258219089Spjd error = zfs_resume_fs(zfsvfs, tofs); 4259219089Spjd error = error ? error : end_err; 4260219089Spjd VFS_RELE(zfsvfs->z_vfs); 4261219089Spjd } else { 4262253816Sdelphij error = dmu_recv_end(&drc, NULL); 4263185029Spjd } 4264185029Spjd } 4265185029Spjd 4266185029Spjd zc->zc_cookie = off - fp->f_offset; 4267185029Spjd if (off >= 0 && off <= MAXOFFSET_T) 4268185029Spjd fp->f_offset = off; 4269185029Spjd 4270219089Spjd#ifdef DEBUG 4271219089Spjd if (zfs_ioc_recv_inject_err) { 4272219089Spjd zfs_ioc_recv_inject_err = B_FALSE; 4273219089Spjd error = 1; 4274219089Spjd } 4275219089Spjd#endif 4276243497Savg 4277243497Savg#ifdef __FreeBSD__ 4278243497Savg if (error == 0) 4279243497Savg zvol_create_minors(tofs); 4280243497Savg#endif 4281243497Savg 4282185029Spjd /* 4283185029Spjd * On error, restore the original props. 4284185029Spjd */ 4285248571Smm if (error != 0 && props != NULL && !drc.drc_newfs) { 4286248571Smm if (clear_received_props(tofs, props, NULL) != 0) { 4287248571Smm /* 4288248571Smm * We failed to clear the received properties. 4289248571Smm * Since we may have left a $recvd value on the 4290248571Smm * system, we can't clear the $hasrecvd flag. 4291248571Smm */ 4292219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4293248571Smm } else if (first_recvd_props) { 4294248571Smm dsl_prop_unset_hasrecvd(tofs); 4295219089Spjd } 4296219089Spjd 4297219089Spjd if (origprops == NULL && !drc.drc_newfs) { 4298219089Spjd /* We failed to stash the original properties. */ 4299219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4300219089Spjd } 4301219089Spjd 4302219089Spjd /* 4303219089Spjd * dsl_props_set() will not convert RECEIVED to LOCAL on or 4304219089Spjd * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL 4305219089Spjd * explictly if we're restoring local properties cleared in the 4306219089Spjd * first new-style receive. 4307219089Spjd */ 4308219089Spjd if (origprops != NULL && 4309219089Spjd zfs_set_prop_nvlist(tofs, (first_recvd_props ? 4310219089Spjd ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), 4311219089Spjd origprops, NULL) != 0) { 4312219089Spjd /* 4313219089Spjd * We stashed the original properties but failed to 4314219089Spjd * restore them. 4315219089Spjd */ 4316219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4317219089Spjd } 4318185029Spjd } 4319185029Spjdout: 4320185029Spjd nvlist_free(props); 4321185029Spjd nvlist_free(origprops); 4322219089Spjd nvlist_free(errors); 4323219089Spjd releasef(fd); 4324219089Spjd 4325219089Spjd if (error == 0) 4326219089Spjd error = props_error; 4327219089Spjd 4328168404Spjd return (error); 4329168404Spjd} 4330168404Spjd 4331185029Spjd/* 4332185029Spjd * inputs: 4333185029Spjd * zc_name name of snapshot to send 4334185029Spjd * zc_cookie file descriptor to send stream to 4335219089Spjd * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) 4336219089Spjd * zc_sendobj objsetid of snapshot to send 4337219089Spjd * zc_fromobj objsetid of incremental fromsnap (may be zero) 4338228103Smm * zc_guid if set, estimate size of stream only. zc_cookie is ignored. 4339228103Smm * output size in zc_objset_type. 4340185029Spjd * 4341260183Sdelphij * outputs: 4342260183Sdelphij * zc_objset_type estimated size, if zc_guid is set 4343185029Spjd */ 4344168404Spjdstatic int 4345185029Spjdzfs_ioc_send(zfs_cmd_t *zc) 4346168404Spjd{ 4347185029Spjd int error; 4348185029Spjd offset_t off; 4349228103Smm boolean_t estimate = (zc->zc_guid != 0); 4350168404Spjd 4351248571Smm if (zc->zc_obj != 0) { 4352248571Smm dsl_pool_t *dp; 4353248571Smm dsl_dataset_t *tosnap; 4354168404Spjd 4355248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4356248571Smm if (error != 0) 4357248571Smm return (error); 4358168404Spjd 4359248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4360248571Smm if (error != 0) { 4361248571Smm dsl_pool_rele(dp, FTAG); 4362248571Smm return (error); 4363248571Smm } 4364248571Smm 4365248571Smm if (dsl_dir_is_clone(tosnap->ds_dir)) 4366248571Smm zc->zc_fromobj = tosnap->ds_dir->dd_phys->dd_origin_obj; 4367248571Smm dsl_dataset_rele(tosnap, FTAG); 4368248571Smm dsl_pool_rele(dp, FTAG); 4369219089Spjd } 4370219089Spjd 4371248571Smm if (estimate) { 4372248571Smm dsl_pool_t *dp; 4373248571Smm dsl_dataset_t *tosnap; 4374248571Smm dsl_dataset_t *fromsnap = NULL; 4375248571Smm 4376248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4377248571Smm if (error != 0) 4378168404Spjd return (error); 4379248571Smm 4380248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4381248571Smm if (error != 0) { 4382248571Smm dsl_pool_rele(dp, FTAG); 4383219089Spjd return (error); 4384219089Spjd } 4385168404Spjd 4386248571Smm if (zc->zc_fromobj != 0) { 4387248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, 4388248571Smm FTAG, &fromsnap); 4389248571Smm if (error != 0) { 4390248571Smm dsl_dataset_rele(tosnap, FTAG); 4391248571Smm dsl_pool_rele(dp, FTAG); 4392248571Smm return (error); 4393248571Smm } 4394248571Smm } 4395248571Smm 4396248571Smm error = dmu_send_estimate(tosnap, fromsnap, 4397228103Smm &zc->zc_objset_type); 4398248571Smm 4399248571Smm if (fromsnap != NULL) 4400248571Smm dsl_dataset_rele(fromsnap, FTAG); 4401248571Smm dsl_dataset_rele(tosnap, FTAG); 4402248571Smm dsl_pool_rele(dp, FTAG); 4403228103Smm } else { 4404255219Spjd file_t *fp; 4405255219Spjd cap_rights_t rights; 4406255219Spjd 4407255219Spjd fp = getf(zc->zc_cookie, 4408255219Spjd cap_rights_init(&rights, CAP_WRITE)); 4409248571Smm if (fp == NULL) 4410249195Smm return (SET_ERROR(EBADF)); 4411168404Spjd 4412228103Smm off = fp->f_offset; 4413248571Smm error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, 4414248571Smm#ifdef illumos 4415248571Smm zc->zc_fromobj, zc->zc_cookie, fp->f_vnode, &off); 4416248571Smm#else 4417248571Smm zc->zc_fromobj, zc->zc_cookie, fp, &off); 4418248571Smm#endif 4419168404Spjd 4420228103Smm if (off >= 0 && off <= MAXOFFSET_T) 4421228103Smm fp->f_offset = off; 4422228103Smm releasef(zc->zc_cookie); 4423228103Smm } 4424168404Spjd return (error); 4425168404Spjd} 4426168404Spjd 4427235222Smm/* 4428235222Smm * inputs: 4429235222Smm * zc_name name of snapshot on which to report progress 4430235222Smm * zc_cookie file descriptor of send stream 4431235222Smm * 4432235222Smm * outputs: 4433235222Smm * zc_cookie number of bytes written in send stream thus far 4434235222Smm */ 4435168404Spjdstatic int 4436235222Smmzfs_ioc_send_progress(zfs_cmd_t *zc) 4437235222Smm{ 4438248571Smm dsl_pool_t *dp; 4439235222Smm dsl_dataset_t *ds; 4440235222Smm dmu_sendarg_t *dsp = NULL; 4441235222Smm int error; 4442235222Smm 4443248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4444248571Smm if (error != 0) 4445235222Smm return (error); 4446235222Smm 4447248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); 4448248571Smm if (error != 0) { 4449248571Smm dsl_pool_rele(dp, FTAG); 4450248571Smm return (error); 4451248571Smm } 4452248571Smm 4453235222Smm mutex_enter(&ds->ds_sendstream_lock); 4454235222Smm 4455235222Smm /* 4456235222Smm * Iterate over all the send streams currently active on this dataset. 4457235222Smm * If there's one which matches the specified file descriptor _and_ the 4458235222Smm * stream was started by the current process, return the progress of 4459235222Smm * that stream. 4460235222Smm */ 4461235222Smm for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; 4462235222Smm dsp = list_next(&ds->ds_sendstreams, dsp)) { 4463235222Smm if (dsp->dsa_outfd == zc->zc_cookie && 4464235222Smm dsp->dsa_proc == curproc) 4465235222Smm break; 4466235222Smm } 4467235222Smm 4468235222Smm if (dsp != NULL) 4469235222Smm zc->zc_cookie = *(dsp->dsa_off); 4470235222Smm else 4471249195Smm error = SET_ERROR(ENOENT); 4472235222Smm 4473235222Smm mutex_exit(&ds->ds_sendstream_lock); 4474235222Smm dsl_dataset_rele(ds, FTAG); 4475248571Smm dsl_pool_rele(dp, FTAG); 4476235222Smm return (error); 4477235222Smm} 4478235222Smm 4479235222Smmstatic int 4480168404Spjdzfs_ioc_inject_fault(zfs_cmd_t *zc) 4481168404Spjd{ 4482168404Spjd int id, error; 4483168404Spjd 4484168404Spjd error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 4485168404Spjd &zc->zc_inject_record); 4486168404Spjd 4487168404Spjd if (error == 0) 4488168404Spjd zc->zc_guid = (uint64_t)id; 4489168404Spjd 4490168404Spjd return (error); 4491168404Spjd} 4492168404Spjd 4493168404Spjdstatic int 4494168404Spjdzfs_ioc_clear_fault(zfs_cmd_t *zc) 4495168404Spjd{ 4496168404Spjd return (zio_clear_fault((int)zc->zc_guid)); 4497168404Spjd} 4498168404Spjd 4499168404Spjdstatic int 4500168404Spjdzfs_ioc_inject_list_next(zfs_cmd_t *zc) 4501168404Spjd{ 4502168404Spjd int id = (int)zc->zc_guid; 4503168404Spjd int error; 4504168404Spjd 4505168404Spjd error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 4506168404Spjd &zc->zc_inject_record); 4507168404Spjd 4508168404Spjd zc->zc_guid = id; 4509168404Spjd 4510168404Spjd return (error); 4511168404Spjd} 4512168404Spjd 4513168404Spjdstatic int 4514168404Spjdzfs_ioc_error_log(zfs_cmd_t *zc) 4515168404Spjd{ 4516168404Spjd spa_t *spa; 4517168404Spjd int error; 4518168404Spjd size_t count = (size_t)zc->zc_nvlist_dst_size; 4519168404Spjd 4520168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 4521168404Spjd return (error); 4522168404Spjd 4523168404Spjd error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 4524168404Spjd &count); 4525168404Spjd if (error == 0) 4526168404Spjd zc->zc_nvlist_dst_size = count; 4527168404Spjd else 4528168404Spjd zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 4529168404Spjd 4530168404Spjd spa_close(spa, FTAG); 4531168404Spjd 4532168404Spjd return (error); 4533168404Spjd} 4534168404Spjd 4535168404Spjdstatic int 4536168404Spjdzfs_ioc_clear(zfs_cmd_t *zc) 4537168404Spjd{ 4538168404Spjd spa_t *spa; 4539168404Spjd vdev_t *vd; 4540168404Spjd int error; 4541168404Spjd 4542185029Spjd /* 4543185029Spjd * On zpool clear we also fix up missing slogs 4544185029Spjd */ 4545185029Spjd mutex_enter(&spa_namespace_lock); 4546185029Spjd spa = spa_lookup(zc->zc_name); 4547185029Spjd if (spa == NULL) { 4548185029Spjd mutex_exit(&spa_namespace_lock); 4549249195Smm return (SET_ERROR(EIO)); 4550185029Spjd } 4551219089Spjd if (spa_get_log_state(spa) == SPA_LOG_MISSING) { 4552185029Spjd /* we need to let spa_open/spa_load clear the chains */ 4553219089Spjd spa_set_log_state(spa, SPA_LOG_CLEAR); 4554185029Spjd } 4555219089Spjd spa->spa_last_open_failed = 0; 4556185029Spjd mutex_exit(&spa_namespace_lock); 4557185029Spjd 4558219089Spjd if (zc->zc_cookie & ZPOOL_NO_REWIND) { 4559219089Spjd error = spa_open(zc->zc_name, &spa, FTAG); 4560219089Spjd } else { 4561219089Spjd nvlist_t *policy; 4562219089Spjd nvlist_t *config = NULL; 4563219089Spjd 4564219089Spjd if (zc->zc_nvlist_src == 0) 4565249195Smm return (SET_ERROR(EINVAL)); 4566219089Spjd 4567219089Spjd if ((error = get_nvlist(zc->zc_nvlist_src, 4568219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { 4569219089Spjd error = spa_open_rewind(zc->zc_name, &spa, FTAG, 4570219089Spjd policy, &config); 4571219089Spjd if (config != NULL) { 4572219089Spjd int err; 4573219089Spjd 4574219089Spjd if ((err = put_nvlist(zc, config)) != 0) 4575219089Spjd error = err; 4576219089Spjd nvlist_free(config); 4577219089Spjd } 4578219089Spjd nvlist_free(policy); 4579219089Spjd } 4580219089Spjd } 4581219089Spjd 4582248571Smm if (error != 0) 4583168404Spjd return (error); 4584168404Spjd 4585219089Spjd spa_vdev_state_enter(spa, SCL_NONE); 4586168404Spjd 4587168404Spjd if (zc->zc_guid == 0) { 4588168404Spjd vd = NULL; 4589185029Spjd } else { 4590185029Spjd vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); 4591185029Spjd if (vd == NULL) { 4592185029Spjd (void) spa_vdev_state_exit(spa, NULL, ENODEV); 4593185029Spjd spa_close(spa, FTAG); 4594249195Smm return (SET_ERROR(ENODEV)); 4595185029Spjd } 4596168404Spjd } 4597168404Spjd 4598168404Spjd vdev_clear(spa, vd); 4599168404Spjd 4600185029Spjd (void) spa_vdev_state_exit(spa, NULL, 0); 4601168404Spjd 4602185029Spjd /* 4603185029Spjd * Resume any suspended I/Os. 4604185029Spjd */ 4605209962Smm if (zio_resume(spa) != 0) 4606249195Smm error = SET_ERROR(EIO); 4607185029Spjd 4608168404Spjd spa_close(spa, FTAG); 4609168404Spjd 4610209962Smm return (error); 4611168404Spjd} 4612168404Spjd 4613236155Smmstatic int 4614236155Smmzfs_ioc_pool_reopen(zfs_cmd_t *zc) 4615236155Smm{ 4616236155Smm spa_t *spa; 4617236155Smm int error; 4618236155Smm 4619236155Smm error = spa_open(zc->zc_name, &spa, FTAG); 4620248571Smm if (error != 0) 4621236155Smm return (error); 4622236155Smm 4623236155Smm spa_vdev_state_enter(spa, SCL_NONE); 4624240133Smm 4625240133Smm /* 4626240133Smm * If a resilver is already in progress then set the 4627240133Smm * spa_scrub_reopen flag to B_TRUE so that we don't restart 4628240133Smm * the scan as a side effect of the reopen. Otherwise, let 4629240133Smm * vdev_open() decided if a resilver is required. 4630240133Smm */ 4631240133Smm spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); 4632236155Smm vdev_reopen(spa->spa_root_vdev); 4633240133Smm spa->spa_scrub_reopen = B_FALSE; 4634240133Smm 4635236155Smm (void) spa_vdev_state_exit(spa, NULL, 0); 4636236155Smm spa_close(spa, FTAG); 4637236155Smm return (0); 4638236155Smm} 4639185029Spjd/* 4640185029Spjd * inputs: 4641185029Spjd * zc_name name of filesystem 4642185029Spjd * zc_value name of origin snapshot 4643185029Spjd * 4644219089Spjd * outputs: 4645219089Spjd * zc_string name of conflicting snapshot, if there is one 4646185029Spjd */ 4647168404Spjdstatic int 4648168404Spjdzfs_ioc_promote(zfs_cmd_t *zc) 4649168404Spjd{ 4650168404Spjd char *cp; 4651168404Spjd 4652168404Spjd /* 4653168404Spjd * We don't need to unmount *all* the origin fs's snapshots, but 4654168404Spjd * it's easier. 4655168404Spjd */ 4656168404Spjd cp = strchr(zc->zc_value, '@'); 4657168404Spjd if (cp) 4658168404Spjd *cp = '\0'; 4659168404Spjd (void) dmu_objset_find(zc->zc_value, 4660248571Smm zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); 4661219089Spjd return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); 4662168404Spjd} 4663168404Spjd 4664185029Spjd/* 4665209962Smm * Retrieve a single {user|group}{used|quota}@... property. 4666209962Smm * 4667209962Smm * inputs: 4668209962Smm * zc_name name of filesystem 4669209962Smm * zc_objset_type zfs_userquota_prop_t 4670209962Smm * zc_value domain name (eg. "S-1-234-567-89") 4671209962Smm * zc_guid RID/UID/GID 4672209962Smm * 4673209962Smm * outputs: 4674209962Smm * zc_cookie property value 4675209962Smm */ 4676209962Smmstatic int 4677209962Smmzfs_ioc_userspace_one(zfs_cmd_t *zc) 4678209962Smm{ 4679209962Smm zfsvfs_t *zfsvfs; 4680209962Smm int error; 4681209962Smm 4682209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 4683249195Smm return (SET_ERROR(EINVAL)); 4684209962Smm 4685219089Spjd error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 4686248571Smm if (error != 0) 4687209962Smm return (error); 4688209962Smm 4689209962Smm error = zfs_userspace_one(zfsvfs, 4690209962Smm zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); 4691209962Smm zfsvfs_rele(zfsvfs, FTAG); 4692209962Smm 4693209962Smm return (error); 4694209962Smm} 4695209962Smm 4696209962Smm/* 4697209962Smm * inputs: 4698209962Smm * zc_name name of filesystem 4699209962Smm * zc_cookie zap cursor 4700209962Smm * zc_objset_type zfs_userquota_prop_t 4701209962Smm * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) 4702209962Smm * 4703209962Smm * outputs: 4704209962Smm * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) 4705209962Smm * zc_cookie zap cursor 4706209962Smm */ 4707209962Smmstatic int 4708209962Smmzfs_ioc_userspace_many(zfs_cmd_t *zc) 4709209962Smm{ 4710209962Smm zfsvfs_t *zfsvfs; 4711219089Spjd int bufsize = zc->zc_nvlist_dst_size; 4712209962Smm 4713219089Spjd if (bufsize <= 0) 4714249195Smm return (SET_ERROR(ENOMEM)); 4715219089Spjd 4716219089Spjd int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 4717248571Smm if (error != 0) 4718209962Smm return (error); 4719209962Smm 4720209962Smm void *buf = kmem_alloc(bufsize, KM_SLEEP); 4721209962Smm 4722209962Smm error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, 4723209962Smm buf, &zc->zc_nvlist_dst_size); 4724209962Smm 4725209962Smm if (error == 0) { 4726221409Smarius error = ddi_copyout(buf, 4727209962Smm (void *)(uintptr_t)zc->zc_nvlist_dst, 4728221409Smarius zc->zc_nvlist_dst_size, zc->zc_iflags); 4729209962Smm } 4730209962Smm kmem_free(buf, bufsize); 4731209962Smm zfsvfs_rele(zfsvfs, FTAG); 4732209962Smm 4733209962Smm return (error); 4734209962Smm} 4735209962Smm 4736209962Smm/* 4737209962Smm * inputs: 4738209962Smm * zc_name name of filesystem 4739209962Smm * 4740209962Smm * outputs: 4741209962Smm * none 4742209962Smm */ 4743209962Smmstatic int 4744209962Smmzfs_ioc_userspace_upgrade(zfs_cmd_t *zc) 4745209962Smm{ 4746209962Smm objset_t *os; 4747219089Spjd int error = 0; 4748209962Smm zfsvfs_t *zfsvfs; 4749209962Smm 4750209962Smm if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { 4751219089Spjd if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { 4752209962Smm /* 4753209962Smm * If userused is not enabled, it may be because the 4754209962Smm * objset needs to be closed & reopened (to grow the 4755209962Smm * objset_phys_t). Suspend/resume the fs will do that. 4756209962Smm */ 4757219089Spjd error = zfs_suspend_fs(zfsvfs); 4758253816Sdelphij if (error == 0) { 4759253816Sdelphij dmu_objset_refresh_ownership(zfsvfs->z_os, 4760253816Sdelphij zfsvfs); 4761219089Spjd error = zfs_resume_fs(zfsvfs, zc->zc_name); 4762253816Sdelphij } 4763209962Smm } 4764209962Smm if (error == 0) 4765209962Smm error = dmu_objset_userspace_upgrade(zfsvfs->z_os); 4766209962Smm VFS_RELE(zfsvfs->z_vfs); 4767209962Smm } else { 4768219089Spjd /* XXX kind of reading contents without owning */ 4769219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 4770248571Smm if (error != 0) 4771209962Smm return (error); 4772209962Smm 4773209962Smm error = dmu_objset_userspace_upgrade(os); 4774219089Spjd dmu_objset_rele(os, FTAG); 4775209962Smm } 4776209962Smm 4777209962Smm return (error); 4778209962Smm} 4779209962Smm 4780209962Smm#ifdef sun 4781209962Smm/* 4782185029Spjd * We don't want to have a hard dependency 4783185029Spjd * against some special symbols in sharefs 4784185029Spjd * nfs, and smbsrv. Determine them if needed when 4785185029Spjd * the first file system is shared. 4786185029Spjd * Neither sharefs, nfs or smbsrv are unloadable modules. 4787185029Spjd */ 4788185029Spjdint (*znfsexport_fs)(void *arg); 4789185029Spjdint (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); 4790185029Spjdint (*zsmbexport_fs)(void *arg, boolean_t add_share); 4791185029Spjd 4792185029Spjdint zfs_nfsshare_inited; 4793185029Spjdint zfs_smbshare_inited; 4794185029Spjd 4795185029Spjdddi_modhandle_t nfs_mod; 4796185029Spjdddi_modhandle_t sharefs_mod; 4797185029Spjdddi_modhandle_t smbsrv_mod; 4798209962Smm#endif /* sun */ 4799185029Spjdkmutex_t zfs_share_lock; 4800185029Spjd 4801209962Smm#ifdef sun 4802168404Spjdstatic int 4803185029Spjdzfs_init_sharefs() 4804185029Spjd{ 4805185029Spjd int error; 4806185029Spjd 4807185029Spjd ASSERT(MUTEX_HELD(&zfs_share_lock)); 4808185029Spjd /* Both NFS and SMB shares also require sharetab support. */ 4809185029Spjd if (sharefs_mod == NULL && ((sharefs_mod = 4810185029Spjd ddi_modopen("fs/sharefs", 4811185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4812249195Smm return (SET_ERROR(ENOSYS)); 4813185029Spjd } 4814185029Spjd if (zshare_fs == NULL && ((zshare_fs = 4815185029Spjd (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) 4816185029Spjd ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { 4817249195Smm return (SET_ERROR(ENOSYS)); 4818185029Spjd } 4819185029Spjd return (0); 4820185029Spjd} 4821219089Spjd#endif /* sun */ 4822185029Spjd 4823185029Spjdstatic int 4824185029Spjdzfs_ioc_share(zfs_cmd_t *zc) 4825185029Spjd{ 4826209962Smm#ifdef sun 4827185029Spjd int error; 4828185029Spjd int opcode; 4829185029Spjd 4830185029Spjd switch (zc->zc_share.z_sharetype) { 4831185029Spjd case ZFS_SHARE_NFS: 4832185029Spjd case ZFS_UNSHARE_NFS: 4833185029Spjd if (zfs_nfsshare_inited == 0) { 4834185029Spjd mutex_enter(&zfs_share_lock); 4835185029Spjd if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", 4836185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4837185029Spjd mutex_exit(&zfs_share_lock); 4838249195Smm return (SET_ERROR(ENOSYS)); 4839185029Spjd } 4840185029Spjd if (znfsexport_fs == NULL && 4841185029Spjd ((znfsexport_fs = (int (*)(void *)) 4842185029Spjd ddi_modsym(nfs_mod, 4843185029Spjd "nfs_export", &error)) == NULL)) { 4844185029Spjd mutex_exit(&zfs_share_lock); 4845249195Smm return (SET_ERROR(ENOSYS)); 4846185029Spjd } 4847185029Spjd error = zfs_init_sharefs(); 4848248571Smm if (error != 0) { 4849185029Spjd mutex_exit(&zfs_share_lock); 4850249195Smm return (SET_ERROR(ENOSYS)); 4851185029Spjd } 4852185029Spjd zfs_nfsshare_inited = 1; 4853185029Spjd mutex_exit(&zfs_share_lock); 4854185029Spjd } 4855185029Spjd break; 4856185029Spjd case ZFS_SHARE_SMB: 4857185029Spjd case ZFS_UNSHARE_SMB: 4858185029Spjd if (zfs_smbshare_inited == 0) { 4859185029Spjd mutex_enter(&zfs_share_lock); 4860185029Spjd if (smbsrv_mod == NULL && ((smbsrv_mod = 4861185029Spjd ddi_modopen("drv/smbsrv", 4862185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4863185029Spjd mutex_exit(&zfs_share_lock); 4864249195Smm return (SET_ERROR(ENOSYS)); 4865185029Spjd } 4866185029Spjd if (zsmbexport_fs == NULL && ((zsmbexport_fs = 4867185029Spjd (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, 4868185029Spjd "smb_server_share", &error)) == NULL)) { 4869185029Spjd mutex_exit(&zfs_share_lock); 4870249195Smm return (SET_ERROR(ENOSYS)); 4871185029Spjd } 4872185029Spjd error = zfs_init_sharefs(); 4873248571Smm if (error != 0) { 4874185029Spjd mutex_exit(&zfs_share_lock); 4875249195Smm return (SET_ERROR(ENOSYS)); 4876185029Spjd } 4877185029Spjd zfs_smbshare_inited = 1; 4878185029Spjd mutex_exit(&zfs_share_lock); 4879185029Spjd } 4880185029Spjd break; 4881185029Spjd default: 4882249195Smm return (SET_ERROR(EINVAL)); 4883185029Spjd } 4884185029Spjd 4885185029Spjd switch (zc->zc_share.z_sharetype) { 4886185029Spjd case ZFS_SHARE_NFS: 4887185029Spjd case ZFS_UNSHARE_NFS: 4888185029Spjd if (error = 4889185029Spjd znfsexport_fs((void *) 4890185029Spjd (uintptr_t)zc->zc_share.z_exportdata)) 4891185029Spjd return (error); 4892185029Spjd break; 4893185029Spjd case ZFS_SHARE_SMB: 4894185029Spjd case ZFS_UNSHARE_SMB: 4895185029Spjd if (error = zsmbexport_fs((void *) 4896185029Spjd (uintptr_t)zc->zc_share.z_exportdata, 4897185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? 4898209962Smm B_TRUE: B_FALSE)) { 4899185029Spjd return (error); 4900185029Spjd } 4901185029Spjd break; 4902185029Spjd } 4903185029Spjd 4904185029Spjd opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || 4905185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? 4906185029Spjd SHAREFS_ADD : SHAREFS_REMOVE; 4907185029Spjd 4908185029Spjd /* 4909185029Spjd * Add or remove share from sharetab 4910185029Spjd */ 4911185029Spjd error = zshare_fs(opcode, 4912185029Spjd (void *)(uintptr_t)zc->zc_share.z_sharedata, 4913185029Spjd zc->zc_share.z_sharemax); 4914185029Spjd 4915185029Spjd return (error); 4916219089Spjd 4917219089Spjd#else /* !sun */ 4918185029Spjd return (ENOSYS); 4919219089Spjd#endif /* !sun */ 4920185029Spjd} 4921185029Spjd 4922209962Smmace_t full_access[] = { 4923209962Smm {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} 4924209962Smm}; 4925209962Smm 4926219089Spjd/* 4927219089Spjd * inputs: 4928219089Spjd * zc_name name of containing filesystem 4929219089Spjd * zc_obj object # beyond which we want next in-use object # 4930219089Spjd * 4931219089Spjd * outputs: 4932219089Spjd * zc_obj next in-use object # 4933219089Spjd */ 4934219089Spjdstatic int 4935219089Spjdzfs_ioc_next_obj(zfs_cmd_t *zc) 4936219089Spjd{ 4937219089Spjd objset_t *os = NULL; 4938219089Spjd int error; 4939219089Spjd 4940219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 4941248571Smm if (error != 0) 4942219089Spjd return (error); 4943219089Spjd 4944219089Spjd error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 4945219089Spjd os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); 4946219089Spjd 4947219089Spjd dmu_objset_rele(os, FTAG); 4948219089Spjd return (error); 4949219089Spjd} 4950219089Spjd 4951219089Spjd/* 4952219089Spjd * inputs: 4953219089Spjd * zc_name name of filesystem 4954219089Spjd * zc_value prefix name for snapshot 4955219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor for calling process 4956219089Spjd * 4957219089Spjd * outputs: 4958248571Smm * zc_value short name of new snapshot 4959219089Spjd */ 4960219089Spjdstatic int 4961219089Spjdzfs_ioc_tmp_snapshot(zfs_cmd_t *zc) 4962219089Spjd{ 4963219089Spjd char *snap_name; 4964248571Smm char *hold_name; 4965219089Spjd int error; 4966248571Smm minor_t minor; 4967219089Spjd 4968248571Smm error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); 4969248571Smm if (error != 0) 4970248571Smm return (error); 4971248571Smm 4972219089Spjd snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, 4973219089Spjd (u_longlong_t)ddi_get_lbolt64()); 4974248571Smm hold_name = kmem_asprintf("%%%s", zc->zc_value); 4975219089Spjd 4976248571Smm error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, 4977248571Smm hold_name); 4978248571Smm if (error == 0) 4979248571Smm (void) strcpy(zc->zc_value, snap_name); 4980219089Spjd strfree(snap_name); 4981248571Smm strfree(hold_name); 4982248571Smm zfs_onexit_fd_rele(zc->zc_cleanup_fd); 4983248571Smm return (error); 4984219089Spjd} 4985219089Spjd 4986219089Spjd/* 4987219089Spjd * inputs: 4988219089Spjd * zc_name name of "to" snapshot 4989219089Spjd * zc_value name of "from" snapshot 4990219089Spjd * zc_cookie file descriptor to write diff data on 4991219089Spjd * 4992219089Spjd * outputs: 4993219089Spjd * dmu_diff_record_t's to the file descriptor 4994219089Spjd */ 4995219089Spjdstatic int 4996219089Spjdzfs_ioc_diff(zfs_cmd_t *zc) 4997219089Spjd{ 4998219089Spjd file_t *fp; 4999255219Spjd cap_rights_t rights; 5000219089Spjd offset_t off; 5001219089Spjd int error; 5002219089Spjd 5003255219Spjd fp = getf(zc->zc_cookie, cap_rights_init(&rights, CAP_WRITE)); 5004248571Smm if (fp == NULL) 5005249195Smm return (SET_ERROR(EBADF)); 5006219089Spjd 5007219089Spjd off = fp->f_offset; 5008219089Spjd 5009248571Smm#ifdef illumos 5010248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); 5011248571Smm#else 5012248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp, &off); 5013248571Smm#endif 5014219089Spjd 5015219089Spjd if (off >= 0 && off <= MAXOFFSET_T) 5016219089Spjd fp->f_offset = off; 5017219089Spjd releasef(zc->zc_cookie); 5018219089Spjd 5019219089Spjd return (error); 5020219089Spjd} 5021219089Spjd 5022209962Smm#ifdef sun 5023185029Spjd/* 5024209962Smm * Remove all ACL files in shares dir 5025209962Smm */ 5026209962Smmstatic int 5027209962Smmzfs_smb_acl_purge(znode_t *dzp) 5028209962Smm{ 5029209962Smm zap_cursor_t zc; 5030209962Smm zap_attribute_t zap; 5031209962Smm zfsvfs_t *zfsvfs = dzp->z_zfsvfs; 5032209962Smm int error; 5033209962Smm 5034209962Smm for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); 5035209962Smm (error = zap_cursor_retrieve(&zc, &zap)) == 0; 5036209962Smm zap_cursor_advance(&zc)) { 5037209962Smm if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, 5038209962Smm NULL, 0)) != 0) 5039209962Smm break; 5040209962Smm } 5041209962Smm zap_cursor_fini(&zc); 5042209962Smm return (error); 5043209962Smm} 5044209962Smm#endif /* sun */ 5045209962Smm 5046209962Smmstatic int 5047209962Smmzfs_ioc_smb_acl(zfs_cmd_t *zc) 5048209962Smm{ 5049209962Smm#ifdef sun 5050209962Smm vnode_t *vp; 5051209962Smm znode_t *dzp; 5052209962Smm vnode_t *resourcevp = NULL; 5053209962Smm znode_t *sharedir; 5054209962Smm zfsvfs_t *zfsvfs; 5055209962Smm nvlist_t *nvlist; 5056209962Smm char *src, *target; 5057209962Smm vattr_t vattr; 5058209962Smm vsecattr_t vsec; 5059209962Smm int error = 0; 5060209962Smm 5061209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 5062209962Smm NO_FOLLOW, NULL, &vp)) != 0) 5063209962Smm return (error); 5064209962Smm 5065209962Smm /* Now make sure mntpnt and dataset are ZFS */ 5066209962Smm 5067219089Spjd if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 5068209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 5069209962Smm zc->zc_name) != 0)) { 5070209962Smm VN_RELE(vp); 5071249195Smm return (SET_ERROR(EINVAL)); 5072209962Smm } 5073209962Smm 5074209962Smm dzp = VTOZ(vp); 5075209962Smm zfsvfs = dzp->z_zfsvfs; 5076209962Smm ZFS_ENTER(zfsvfs); 5077209962Smm 5078209962Smm /* 5079209962Smm * Create share dir if its missing. 5080209962Smm */ 5081209962Smm mutex_enter(&zfsvfs->z_lock); 5082209962Smm if (zfsvfs->z_shares_dir == 0) { 5083209962Smm dmu_tx_t *tx; 5084209962Smm 5085209962Smm tx = dmu_tx_create(zfsvfs->z_os); 5086209962Smm dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, 5087209962Smm ZFS_SHARES_DIR); 5088209962Smm dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); 5089209962Smm error = dmu_tx_assign(tx, TXG_WAIT); 5090248571Smm if (error != 0) { 5091209962Smm dmu_tx_abort(tx); 5092209962Smm } else { 5093209962Smm error = zfs_create_share_dir(zfsvfs, tx); 5094209962Smm dmu_tx_commit(tx); 5095209962Smm } 5096248571Smm if (error != 0) { 5097209962Smm mutex_exit(&zfsvfs->z_lock); 5098209962Smm VN_RELE(vp); 5099209962Smm ZFS_EXIT(zfsvfs); 5100209962Smm return (error); 5101209962Smm } 5102209962Smm } 5103209962Smm mutex_exit(&zfsvfs->z_lock); 5104209962Smm 5105209962Smm ASSERT(zfsvfs->z_shares_dir); 5106209962Smm if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { 5107209962Smm VN_RELE(vp); 5108209962Smm ZFS_EXIT(zfsvfs); 5109209962Smm return (error); 5110209962Smm } 5111209962Smm 5112209962Smm switch (zc->zc_cookie) { 5113209962Smm case ZFS_SMB_ACL_ADD: 5114209962Smm vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; 5115209962Smm vattr.va_type = VREG; 5116209962Smm vattr.va_mode = S_IFREG|0777; 5117209962Smm vattr.va_uid = 0; 5118209962Smm vattr.va_gid = 0; 5119209962Smm 5120209962Smm vsec.vsa_mask = VSA_ACE; 5121209962Smm vsec.vsa_aclentp = &full_access; 5122209962Smm vsec.vsa_aclentsz = sizeof (full_access); 5123209962Smm vsec.vsa_aclcnt = 1; 5124209962Smm 5125209962Smm error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, 5126209962Smm &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); 5127209962Smm if (resourcevp) 5128209962Smm VN_RELE(resourcevp); 5129209962Smm break; 5130209962Smm 5131209962Smm case ZFS_SMB_ACL_REMOVE: 5132209962Smm error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, 5133209962Smm NULL, 0); 5134209962Smm break; 5135209962Smm 5136209962Smm case ZFS_SMB_ACL_RENAME: 5137209962Smm if ((error = get_nvlist(zc->zc_nvlist_src, 5138219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { 5139209962Smm VN_RELE(vp); 5140209962Smm ZFS_EXIT(zfsvfs); 5141209962Smm return (error); 5142209962Smm } 5143209962Smm if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || 5144209962Smm nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, 5145209962Smm &target)) { 5146209962Smm VN_RELE(vp); 5147209962Smm VN_RELE(ZTOV(sharedir)); 5148209962Smm ZFS_EXIT(zfsvfs); 5149219089Spjd nvlist_free(nvlist); 5150209962Smm return (error); 5151209962Smm } 5152209962Smm error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, 5153209962Smm kcred, NULL, 0); 5154209962Smm nvlist_free(nvlist); 5155209962Smm break; 5156209962Smm 5157209962Smm case ZFS_SMB_ACL_PURGE: 5158209962Smm error = zfs_smb_acl_purge(sharedir); 5159209962Smm break; 5160209962Smm 5161209962Smm default: 5162249195Smm error = SET_ERROR(EINVAL); 5163209962Smm break; 5164209962Smm } 5165209962Smm 5166209962Smm VN_RELE(vp); 5167209962Smm VN_RELE(ZTOV(sharedir)); 5168209962Smm 5169209962Smm ZFS_EXIT(zfsvfs); 5170209962Smm 5171209962Smm return (error); 5172209962Smm#else /* !sun */ 5173209962Smm return (EOPNOTSUPP); 5174209962Smm#endif /* !sun */ 5175209962Smm} 5176209962Smm 5177209962Smm/* 5178248571Smm * innvl: { 5179248571Smm * "holds" -> { snapname -> holdname (string), ... } 5180248571Smm * (optional) "cleanup_fd" -> fd (int32) 5181248571Smm * } 5182219089Spjd * 5183248571Smm * outnvl: { 5184248571Smm * snapname -> error value (int32) 5185248571Smm * ... 5186248571Smm * } 5187219089Spjd */ 5188248571Smm/* ARGSUSED */ 5189219089Spjdstatic int 5190248571Smmzfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) 5191219089Spjd{ 5192248571Smm nvlist_t *holds; 5193248571Smm int cleanup_fd = -1; 5194219089Spjd int error; 5195219089Spjd minor_t minor = 0; 5196219089Spjd 5197248571Smm error = nvlist_lookup_nvlist(args, "holds", &holds); 5198248571Smm if (error != 0) 5199249195Smm return (SET_ERROR(EINVAL)); 5200219089Spjd 5201248571Smm if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { 5202248571Smm error = zfs_onexit_fd_hold(cleanup_fd, &minor); 5203248571Smm if (error != 0) 5204219089Spjd return (error); 5205219089Spjd } 5206219089Spjd 5207248571Smm error = dsl_dataset_user_hold(holds, minor, errlist); 5208248571Smm if (minor != 0) 5209248571Smm zfs_onexit_fd_rele(cleanup_fd); 5210219089Spjd return (error); 5211219089Spjd} 5212219089Spjd 5213219089Spjd/* 5214248571Smm * innvl is not used. 5215219089Spjd * 5216248571Smm * outnvl: { 5217248571Smm * holdname -> time added (uint64 seconds since epoch) 5218248571Smm * ... 5219248571Smm * } 5220219089Spjd */ 5221248571Smm/* ARGSUSED */ 5222219089Spjdstatic int 5223248571Smmzfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) 5224219089Spjd{ 5225248571Smm return (dsl_dataset_get_holds(snapname, outnvl)); 5226219089Spjd} 5227219089Spjd 5228219089Spjd/* 5229248571Smm * innvl: { 5230248571Smm * snapname -> { holdname, ... } 5231248571Smm * ... 5232248571Smm * } 5233219089Spjd * 5234248571Smm * outnvl: { 5235248571Smm * snapname -> error value (int32) 5236248571Smm * ... 5237248571Smm * } 5238219089Spjd */ 5239248571Smm/* ARGSUSED */ 5240219089Spjdstatic int 5241248571Smmzfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) 5242219089Spjd{ 5243248571Smm return (dsl_dataset_user_release(holds, errlist)); 5244219089Spjd} 5245219089Spjd 5246219089Spjd/* 5247228103Smm * inputs: 5248228103Smm * zc_name name of new filesystem or snapshot 5249228103Smm * zc_value full name of old snapshot 5250228103Smm * 5251228103Smm * outputs: 5252228103Smm * zc_cookie space in bytes 5253228103Smm * zc_objset_type compressed space in bytes 5254228103Smm * zc_perm_action uncompressed space in bytes 5255228103Smm */ 5256228103Smmstatic int 5257228103Smmzfs_ioc_space_written(zfs_cmd_t *zc) 5258228103Smm{ 5259228103Smm int error; 5260248571Smm dsl_pool_t *dp; 5261228103Smm dsl_dataset_t *new, *old; 5262228103Smm 5263248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 5264228103Smm if (error != 0) 5265228103Smm return (error); 5266248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); 5267228103Smm if (error != 0) { 5268248571Smm dsl_pool_rele(dp, FTAG); 5269248571Smm return (error); 5270248571Smm } 5271248571Smm error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); 5272248571Smm if (error != 0) { 5273228103Smm dsl_dataset_rele(new, FTAG); 5274248571Smm dsl_pool_rele(dp, FTAG); 5275228103Smm return (error); 5276228103Smm } 5277228103Smm 5278228103Smm error = dsl_dataset_space_written(old, new, &zc->zc_cookie, 5279228103Smm &zc->zc_objset_type, &zc->zc_perm_action); 5280228103Smm dsl_dataset_rele(old, FTAG); 5281228103Smm dsl_dataset_rele(new, FTAG); 5282248571Smm dsl_pool_rele(dp, FTAG); 5283228103Smm return (error); 5284228103Smm} 5285228103Smm 5286228103Smm/* 5287248571Smm * innvl: { 5288248571Smm * "firstsnap" -> snapshot name 5289248571Smm * } 5290228103Smm * 5291248571Smm * outnvl: { 5292248571Smm * "used" -> space in bytes 5293248571Smm * "compressed" -> compressed space in bytes 5294248571Smm * "uncompressed" -> uncompressed space in bytes 5295248571Smm * } 5296228103Smm */ 5297228103Smmstatic int 5298248571Smmzfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) 5299228103Smm{ 5300228103Smm int error; 5301248571Smm dsl_pool_t *dp; 5302228103Smm dsl_dataset_t *new, *old; 5303248571Smm char *firstsnap; 5304248571Smm uint64_t used, comp, uncomp; 5305228103Smm 5306248571Smm if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) 5307249195Smm return (SET_ERROR(EINVAL)); 5308248571Smm 5309248571Smm error = dsl_pool_hold(lastsnap, FTAG, &dp); 5310228103Smm if (error != 0) 5311228103Smm return (error); 5312248571Smm 5313248571Smm error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); 5314228103Smm if (error != 0) { 5315248571Smm dsl_pool_rele(dp, FTAG); 5316248571Smm return (error); 5317248571Smm } 5318248571Smm error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); 5319248571Smm if (error != 0) { 5320228103Smm dsl_dataset_rele(new, FTAG); 5321248571Smm dsl_pool_rele(dp, FTAG); 5322228103Smm return (error); 5323228103Smm } 5324228103Smm 5325248571Smm error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); 5326228103Smm dsl_dataset_rele(old, FTAG); 5327228103Smm dsl_dataset_rele(new, FTAG); 5328248571Smm dsl_pool_rele(dp, FTAG); 5329248571Smm fnvlist_add_uint64(outnvl, "used", used); 5330248571Smm fnvlist_add_uint64(outnvl, "compressed", comp); 5331248571Smm fnvlist_add_uint64(outnvl, "uncompressed", uncomp); 5332228103Smm return (error); 5333228103Smm} 5334228103Smm 5335185029Spjdstatic int 5336168404Spjdzfs_ioc_jail(zfs_cmd_t *zc) 5337168404Spjd{ 5338168404Spjd 5339185029Spjd return (zone_dataset_attach(curthread->td_ucred, zc->zc_name, 5340185029Spjd (int)zc->zc_jailid)); 5341168404Spjd} 5342168404Spjd 5343168404Spjdstatic int 5344168404Spjdzfs_ioc_unjail(zfs_cmd_t *zc) 5345168404Spjd{ 5346168404Spjd 5347185029Spjd return (zone_dataset_detach(curthread->td_ucred, zc->zc_name, 5348185029Spjd (int)zc->zc_jailid)); 5349168404Spjd} 5350168404Spjd 5351248571Smm/* 5352248571Smm * innvl: { 5353248571Smm * "fd" -> file descriptor to write stream to (int32) 5354248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5355248571Smm * } 5356248571Smm * 5357248571Smm * outnvl is unused 5358248571Smm */ 5359248571Smm/* ARGSUSED */ 5360248571Smmstatic int 5361248571Smmzfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5362248571Smm{ 5363255219Spjd cap_rights_t rights; 5364248571Smm int error; 5365248571Smm offset_t off; 5366248571Smm char *fromname = NULL; 5367248571Smm int fd; 5368168404Spjd 5369248571Smm error = nvlist_lookup_int32(innvl, "fd", &fd); 5370248571Smm if (error != 0) 5371249195Smm return (SET_ERROR(EINVAL)); 5372248571Smm 5373248571Smm (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); 5374248571Smm 5375255219Spjd file_t *fp = getf(fd, cap_rights_init(&rights, CAP_READ)); 5376248571Smm if (fp == NULL) 5377249195Smm return (SET_ERROR(EBADF)); 5378248571Smm 5379248571Smm off = fp->f_offset; 5380248571Smm#ifdef illumos 5381248571Smm error = dmu_send(snapname, fromname, fd, fp->f_vnode, &off); 5382248571Smm#else 5383248571Smm error = dmu_send(snapname, fromname, fd, fp, &off); 5384248571Smm#endif 5385248571Smm 5386248571Smm#ifdef illumos 5387248571Smm if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) 5388248571Smm fp->f_offset = off; 5389248571Smm#else 5390248571Smm fp->f_offset = off; 5391248571Smm#endif 5392248571Smm 5393248571Smm releasef(fd); 5394248571Smm return (error); 5395248571Smm} 5396248571Smm 5397248571Smm/* 5398248571Smm * Determine approximately how large a zfs send stream will be -- the number 5399248571Smm * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). 5400248571Smm * 5401248571Smm * innvl: { 5402248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5403248571Smm * } 5404248571Smm * 5405248571Smm * outnvl: { 5406248571Smm * "space" -> bytes of space (uint64) 5407248571Smm * } 5408248571Smm */ 5409248571Smmstatic int 5410248571Smmzfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5411248571Smm{ 5412248571Smm dsl_pool_t *dp; 5413248571Smm dsl_dataset_t *fromsnap = NULL; 5414248571Smm dsl_dataset_t *tosnap; 5415248571Smm int error; 5416248571Smm char *fromname; 5417248571Smm uint64_t space; 5418248571Smm 5419248571Smm error = dsl_pool_hold(snapname, FTAG, &dp); 5420248571Smm if (error != 0) 5421248571Smm return (error); 5422248571Smm 5423248571Smm error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); 5424248571Smm if (error != 0) { 5425248571Smm dsl_pool_rele(dp, FTAG); 5426248571Smm return (error); 5427248571Smm } 5428248571Smm 5429248571Smm error = nvlist_lookup_string(innvl, "fromsnap", &fromname); 5430248571Smm if (error == 0) { 5431248571Smm error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); 5432248571Smm if (error != 0) { 5433248571Smm dsl_dataset_rele(tosnap, FTAG); 5434248571Smm dsl_pool_rele(dp, FTAG); 5435248571Smm return (error); 5436248571Smm } 5437248571Smm } 5438248571Smm 5439248571Smm error = dmu_send_estimate(tosnap, fromsnap, &space); 5440248571Smm fnvlist_add_uint64(outnvl, "space", space); 5441248571Smm 5442248571Smm if (fromsnap != NULL) 5443248571Smm dsl_dataset_rele(fromsnap, FTAG); 5444248571Smm dsl_dataset_rele(tosnap, FTAG); 5445248571Smm dsl_pool_rele(dp, FTAG); 5446248571Smm return (error); 5447248571Smm} 5448248571Smm 5449248571Smm 5450248571Smmstatic zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; 5451248571Smm 5452248571Smmstatic void 5453248571Smmzfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5454248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 5455248571Smm boolean_t log_history, zfs_ioc_poolcheck_t pool_check) 5456248571Smm{ 5457248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 5458248571Smm 5459248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 5460248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 5461248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 5462248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 5463248571Smm 5464248571Smm vec->zvec_legacy_func = func; 5465248571Smm vec->zvec_secpolicy = secpolicy; 5466248571Smm vec->zvec_namecheck = namecheck; 5467248571Smm vec->zvec_allow_log = log_history; 5468248571Smm vec->zvec_pool_check = pool_check; 5469248571Smm} 5470248571Smm 5471248571Smm/* 5472248571Smm * See the block comment at the beginning of this file for details on 5473248571Smm * each argument to this function. 5474248571Smm */ 5475248571Smmstatic void 5476248571Smmzfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, 5477248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 5478248571Smm zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, 5479248571Smm boolean_t allow_log) 5480248571Smm{ 5481248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 5482248571Smm 5483248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 5484248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 5485248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 5486248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 5487248571Smm 5488248571Smm /* if we are logging, the name must be valid */ 5489248571Smm ASSERT(!allow_log || namecheck != NO_NAME); 5490248571Smm 5491248571Smm vec->zvec_name = name; 5492248571Smm vec->zvec_func = func; 5493248571Smm vec->zvec_secpolicy = secpolicy; 5494248571Smm vec->zvec_namecheck = namecheck; 5495248571Smm vec->zvec_pool_check = pool_check; 5496248571Smm vec->zvec_smush_outnvlist = smush_outnvlist; 5497248571Smm vec->zvec_allow_log = allow_log; 5498248571Smm} 5499248571Smm 5500248571Smmstatic void 5501248571Smmzfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5502248571Smm zfs_secpolicy_func_t *secpolicy, boolean_t log_history, 5503248571Smm zfs_ioc_poolcheck_t pool_check) 5504248571Smm{ 5505248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5506248571Smm POOL_NAME, log_history, pool_check); 5507248571Smm} 5508248571Smm 5509248571Smmstatic void 5510248571Smmzfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5511248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) 5512248571Smm{ 5513248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5514248571Smm DATASET_NAME, B_FALSE, pool_check); 5515248571Smm} 5516248571Smm 5517248571Smmstatic void 5518248571Smmzfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 5519248571Smm{ 5520248571Smm zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, 5521248571Smm POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5522248571Smm} 5523248571Smm 5524248571Smmstatic void 5525248571Smmzfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5526248571Smm zfs_secpolicy_func_t *secpolicy) 5527248571Smm{ 5528248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5529248571Smm NO_NAME, B_FALSE, POOL_CHECK_NONE); 5530248571Smm} 5531248571Smm 5532248571Smmstatic void 5533248571Smmzfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, 5534248571Smm zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) 5535248571Smm{ 5536248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5537248571Smm DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); 5538248571Smm} 5539248571Smm 5540248571Smmstatic void 5541248571Smmzfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 5542248571Smm{ 5543248571Smm zfs_ioctl_register_dataset_read_secpolicy(ioc, func, 5544248571Smm zfs_secpolicy_read); 5545248571Smm} 5546248571Smm 5547248571Smmstatic void 5548248571Smmzfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5549248571Smm zfs_secpolicy_func_t *secpolicy) 5550248571Smm{ 5551248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5552248571Smm DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5553248571Smm} 5554248571Smm 5555248571Smmstatic void 5556248571Smmzfs_ioctl_init(void) 5557248571Smm{ 5558248571Smm zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, 5559248571Smm zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, 5560248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5561248571Smm 5562248571Smm zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, 5563248571Smm zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, 5564248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); 5565248571Smm 5566248571Smm zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, 5567248571Smm zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, 5568248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5569248571Smm 5570248571Smm zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, 5571248571Smm zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, 5572248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5573248571Smm 5574248571Smm zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, 5575248571Smm zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, 5576248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5577248571Smm 5578248571Smm zfs_ioctl_register("create", ZFS_IOC_CREATE, 5579248571Smm zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, 5580248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5581248571Smm 5582248571Smm zfs_ioctl_register("clone", ZFS_IOC_CLONE, 5583248571Smm zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, 5584248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5585248571Smm 5586248571Smm zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, 5587248571Smm zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, 5588248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5589248571Smm 5590248571Smm zfs_ioctl_register("hold", ZFS_IOC_HOLD, 5591248571Smm zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, 5592248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5593248571Smm zfs_ioctl_register("release", ZFS_IOC_RELEASE, 5594248571Smm zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, 5595248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5596248571Smm 5597248571Smm zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, 5598248571Smm zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, 5599248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5600248571Smm 5601254587Sdelphij zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, 5602254587Sdelphij zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, 5603254587Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); 5604254587Sdelphij 5605260183Sdelphij zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, 5606260183Sdelphij zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, 5607260183Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5608260183Sdelphij 5609260183Sdelphij zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, 5610260183Sdelphij zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, 5611260183Sdelphij POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5612260183Sdelphij 5613260183Sdelphij zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, 5614260183Sdelphij zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, 5615260183Sdelphij POOL_NAME, 5616260183Sdelphij POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5617260183Sdelphij 5618248571Smm /* IOCTLS that use the legacy function signature */ 5619248571Smm 5620248571Smm zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, 5621248571Smm zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); 5622248571Smm 5623248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, 5624248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5625248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, 5626248571Smm zfs_ioc_pool_scan); 5627248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, 5628248571Smm zfs_ioc_pool_upgrade); 5629248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, 5630248571Smm zfs_ioc_vdev_add); 5631248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, 5632248571Smm zfs_ioc_vdev_remove); 5633248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, 5634248571Smm zfs_ioc_vdev_set_state); 5635248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, 5636248571Smm zfs_ioc_vdev_attach); 5637248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, 5638248571Smm zfs_ioc_vdev_detach); 5639248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, 5640248571Smm zfs_ioc_vdev_setpath); 5641248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, 5642248571Smm zfs_ioc_vdev_setfru); 5643248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, 5644248571Smm zfs_ioc_pool_set_props); 5645248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, 5646248571Smm zfs_ioc_vdev_split); 5647248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, 5648248571Smm zfs_ioc_pool_reguid); 5649248571Smm 5650248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, 5651248571Smm zfs_ioc_pool_configs, zfs_secpolicy_none); 5652248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, 5653248571Smm zfs_ioc_pool_tryimport, zfs_secpolicy_config); 5654248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, 5655248571Smm zfs_ioc_inject_fault, zfs_secpolicy_inject); 5656248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, 5657248571Smm zfs_ioc_clear_fault, zfs_secpolicy_inject); 5658248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, 5659248571Smm zfs_ioc_inject_list_next, zfs_secpolicy_inject); 5660248571Smm 5661248571Smm /* 5662248571Smm * pool destroy, and export don't log the history as part of 5663248571Smm * zfsdev_ioctl, but rather zfs_ioc_pool_export 5664248571Smm * does the logging of those commands. 5665248571Smm */ 5666248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, 5667248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 5668248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, 5669248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 5670248571Smm 5671248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, 5672248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 5673248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, 5674248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 5675248571Smm 5676248571Smm zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, 5677253806Smav zfs_secpolicy_inject, B_FALSE, POOL_CHECK_NONE); 5678248571Smm zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, 5679248571Smm zfs_ioc_dsobj_to_dsname, 5680253806Smav zfs_secpolicy_diff, B_FALSE, POOL_CHECK_NONE); 5681248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, 5682248571Smm zfs_ioc_pool_get_history, 5683248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); 5684248571Smm 5685248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, 5686248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5687248571Smm 5688248571Smm zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, 5689253806Smav zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5690248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, 5691248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); 5692248571Smm 5693248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, 5694248571Smm zfs_ioc_space_written); 5695248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, 5696248571Smm zfs_ioc_objset_recvd_props); 5697248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, 5698248571Smm zfs_ioc_next_obj); 5699248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, 5700248571Smm zfs_ioc_get_fsacl); 5701248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, 5702248571Smm zfs_ioc_objset_stats); 5703248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, 5704248571Smm zfs_ioc_objset_zplprops); 5705248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, 5706248571Smm zfs_ioc_dataset_list_next); 5707248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, 5708248571Smm zfs_ioc_snapshot_list_next); 5709248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, 5710248571Smm zfs_ioc_send_progress); 5711248571Smm 5712248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, 5713248571Smm zfs_ioc_diff, zfs_secpolicy_diff); 5714248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, 5715248571Smm zfs_ioc_obj_to_stats, zfs_secpolicy_diff); 5716248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, 5717248571Smm zfs_ioc_obj_to_path, zfs_secpolicy_diff); 5718248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, 5719248571Smm zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); 5720248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, 5721248571Smm zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); 5722248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, 5723248571Smm zfs_ioc_send, zfs_secpolicy_send); 5724248571Smm 5725248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, 5726248571Smm zfs_secpolicy_none); 5727248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, 5728248571Smm zfs_secpolicy_destroy); 5729248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, 5730248571Smm zfs_secpolicy_rename); 5731248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, 5732248571Smm zfs_secpolicy_recv); 5733248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, 5734248571Smm zfs_secpolicy_promote); 5735248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, 5736248571Smm zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); 5737248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, 5738248571Smm zfs_secpolicy_set_fsacl); 5739248571Smm 5740248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, 5741248571Smm zfs_secpolicy_share, POOL_CHECK_NONE); 5742248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, 5743248571Smm zfs_secpolicy_smb_acl, POOL_CHECK_NONE); 5744248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, 5745248571Smm zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, 5746248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5747248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, 5748248571Smm zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, 5749248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5750252380Smm 5751252380Smm#ifdef __FreeBSD__ 5752252380Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_JAIL, zfs_ioc_jail, 5753252380Smm zfs_secpolicy_config, POOL_CHECK_NONE); 5754252380Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_UNJAIL, zfs_ioc_unjail, 5755252380Smm zfs_secpolicy_config, POOL_CHECK_NONE); 5756252380Smm#endif 5757248571Smm} 5758248571Smm 5759209962Smmint 5760246688Smmpool_status_check(const char *name, zfs_ioc_namecheck_t type, 5761246688Smm zfs_ioc_poolcheck_t check) 5762209962Smm{ 5763209962Smm spa_t *spa; 5764209962Smm int error; 5765209962Smm 5766209962Smm ASSERT(type == POOL_NAME || type == DATASET_NAME); 5767209962Smm 5768246688Smm if (check & POOL_CHECK_NONE) 5769246688Smm return (0); 5770246688Smm 5771209962Smm error = spa_open(name, &spa, FTAG); 5772209962Smm if (error == 0) { 5773246688Smm if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) 5774249195Smm error = SET_ERROR(EAGAIN); 5775246688Smm else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) 5776249195Smm error = SET_ERROR(EROFS); 5777209962Smm spa_close(spa, FTAG); 5778209962Smm } 5779209962Smm return (error); 5780209962Smm} 5781209962Smm 5782219089Spjd/* 5783219089Spjd * Find a free minor number. 5784219089Spjd */ 5785219089Spjdminor_t 5786219089Spjdzfsdev_minor_alloc(void) 5787219089Spjd{ 5788219089Spjd static minor_t last_minor; 5789219089Spjd minor_t m; 5790219089Spjd 5791224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5792219089Spjd 5793219089Spjd for (m = last_minor + 1; m != last_minor; m++) { 5794219089Spjd if (m > ZFSDEV_MAX_MINOR) 5795219089Spjd m = 1; 5796219089Spjd if (ddi_get_soft_state(zfsdev_state, m) == NULL) { 5797219089Spjd last_minor = m; 5798219089Spjd return (m); 5799219089Spjd } 5800219089Spjd } 5801219089Spjd 5802219089Spjd return (0); 5803219089Spjd} 5804219089Spjd 5805168404Spjdstatic int 5806219089Spjdzfs_ctldev_init(struct cdev *devp) 5807219089Spjd{ 5808219089Spjd minor_t minor; 5809219089Spjd zfs_soft_state_t *zs; 5810219089Spjd 5811224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5812219089Spjd 5813219089Spjd minor = zfsdev_minor_alloc(); 5814219089Spjd if (minor == 0) 5815249195Smm return (SET_ERROR(ENXIO)); 5816219089Spjd 5817219089Spjd if (ddi_soft_state_zalloc(zfsdev_state, minor) != DDI_SUCCESS) 5818249195Smm return (SET_ERROR(EAGAIN)); 5819219089Spjd 5820219089Spjd devfs_set_cdevpriv((void *)(uintptr_t)minor, zfsdev_close); 5821219089Spjd 5822219089Spjd zs = ddi_get_soft_state(zfsdev_state, minor); 5823219089Spjd zs->zss_type = ZSST_CTLDEV; 5824219089Spjd zfs_onexit_init((zfs_onexit_t **)&zs->zss_data); 5825219089Spjd 5826219089Spjd return (0); 5827219089Spjd} 5828219089Spjd 5829219089Spjdstatic void 5830219089Spjdzfs_ctldev_destroy(zfs_onexit_t *zo, minor_t minor) 5831219089Spjd{ 5832224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5833219089Spjd 5834219089Spjd zfs_onexit_destroy(zo); 5835219089Spjd ddi_soft_state_free(zfsdev_state, minor); 5836219089Spjd} 5837219089Spjd 5838219089Spjdvoid * 5839219089Spjdzfsdev_get_soft_state(minor_t minor, enum zfs_soft_state_type which) 5840219089Spjd{ 5841219089Spjd zfs_soft_state_t *zp; 5842219089Spjd 5843219089Spjd zp = ddi_get_soft_state(zfsdev_state, minor); 5844219089Spjd if (zp == NULL || zp->zss_type != which) 5845219089Spjd return (NULL); 5846219089Spjd 5847219089Spjd return (zp->zss_data); 5848219089Spjd} 5849219089Spjd 5850219089Spjdstatic int 5851219089Spjdzfsdev_open(struct cdev *devp, int flag, int mode, struct thread *td) 5852219089Spjd{ 5853219089Spjd int error = 0; 5854219089Spjd 5855219089Spjd#ifdef sun 5856219089Spjd if (getminor(*devp) != 0) 5857219089Spjd return (zvol_open(devp, flag, otyp, cr)); 5858219089Spjd#endif 5859219089Spjd 5860219089Spjd /* This is the control device. Allocate a new minor if requested. */ 5861219089Spjd if (flag & FEXCL) { 5862224791Spjd mutex_enter(&spa_namespace_lock); 5863219089Spjd error = zfs_ctldev_init(devp); 5864224791Spjd mutex_exit(&spa_namespace_lock); 5865219089Spjd } 5866219089Spjd 5867219089Spjd return (error); 5868219089Spjd} 5869219089Spjd 5870219089Spjdstatic void 5871219089Spjdzfsdev_close(void *data) 5872219089Spjd{ 5873219089Spjd zfs_onexit_t *zo; 5874219089Spjd minor_t minor = (minor_t)(uintptr_t)data; 5875219089Spjd 5876219089Spjd if (minor == 0) 5877219089Spjd return; 5878219089Spjd 5879224791Spjd mutex_enter(&spa_namespace_lock); 5880219089Spjd zo = zfsdev_get_soft_state(minor, ZSST_CTLDEV); 5881219089Spjd if (zo == NULL) { 5882224791Spjd mutex_exit(&spa_namespace_lock); 5883219089Spjd return; 5884219089Spjd } 5885219089Spjd zfs_ctldev_destroy(zo, minor); 5886224791Spjd mutex_exit(&spa_namespace_lock); 5887219089Spjd} 5888219089Spjd 5889219089Spjdstatic int 5890248571Smmzfsdev_ioctl(struct cdev *dev, u_long zcmd, caddr_t arg, int flag, 5891168404Spjd struct thread *td) 5892168404Spjd{ 5893219089Spjd zfs_cmd_t *zc; 5894248571Smm uint_t vecnum; 5895249319Smm int error, rc, len; 5896249004Smm#ifdef illumos 5897248571Smm minor_t minor = getminor(dev); 5898248571Smm#else 5899249319Smm zfs_iocparm_t *zc_iocparm; 5900249319Smm int cflag, cmd, oldvecnum; 5901249319Smm boolean_t newioc, compat; 5902248571Smm cred_t *cr = td->td_ucred; 5903248571Smm#endif 5904248571Smm const zfs_ioc_vec_t *vec; 5905248571Smm char *saved_poolname = NULL; 5906248571Smm nvlist_t *innvl = NULL; 5907168404Spjd 5908219089Spjd cflag = ZFS_CMD_COMPAT_NONE; 5909249319Smm compat = B_FALSE; 5910249319Smm newioc = B_TRUE; 5911249319Smm 5912248571Smm len = IOCPARM_LEN(zcmd); 5913248571Smm cmd = zcmd & 0xff; 5914219089Spjd 5915214854Sdelphij /* 5916247540Smm * Check if we are talking to supported older binaries 5917247540Smm * and translate zfs_cmd if necessary 5918214854Sdelphij */ 5919249319Smm if (len != sizeof(zfs_iocparm_t)) { 5920249319Smm newioc = B_FALSE; 5921249319Smm if (len == sizeof(zfs_cmd_t)) { 5922249319Smm cflag = ZFS_CMD_COMPAT_LZC; 5923249319Smm vecnum = cmd; 5924249319Smm } else if (len == sizeof(zfs_cmd_deadman_t)) { 5925248571Smm cflag = ZFS_CMD_COMPAT_DEADMAN; 5926249319Smm compat = B_TRUE; 5927248571Smm vecnum = cmd; 5928248571Smm } else if (len == sizeof(zfs_cmd_v28_t)) { 5929247540Smm cflag = ZFS_CMD_COMPAT_V28; 5930249319Smm compat = B_TRUE; 5931248571Smm vecnum = cmd; 5932247540Smm } else if (len == sizeof(zfs_cmd_v15_t)) { 5933219089Spjd cflag = ZFS_CMD_COMPAT_V15; 5934249319Smm compat = B_TRUE; 5935248571Smm vecnum = zfs_ioctl_v15_to_v28[cmd]; 5936219089Spjd } else 5937219089Spjd return (EINVAL); 5938249319Smm } else 5939248571Smm vecnum = cmd; 5940214854Sdelphij 5941248571Smm#ifdef illumos 5942248571Smm vecnum = cmd - ZFS_IOC_FIRST; 5943248571Smm ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip)); 5944248571Smm#endif 5945248571Smm 5946249319Smm if (compat) { 5947248571Smm if (vecnum == ZFS_IOC_COMPAT_PASS) 5948219089Spjd return (0); 5949248571Smm else if (vecnum == ZFS_IOC_COMPAT_FAIL) 5950219089Spjd return (ENOTSUP); 5951219089Spjd } 5952168404Spjd 5953247540Smm /* 5954247540Smm * Check if we have sufficient kernel memory allocated 5955247540Smm * for the zfs_cmd_t request. Bail out if not so we 5956247540Smm * will not access undefined memory region. 5957247540Smm */ 5958248571Smm if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 5959249195Smm return (SET_ERROR(EINVAL)); 5960248571Smm vec = &zfs_ioc_vec[vecnum]; 5961168404Spjd 5962248571Smm#ifdef illumos 5963248571Smm zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 5964248571Smm bzero(zc, sizeof(zfs_cmd_t)); 5965248571Smm 5966248571Smm error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); 5967248571Smm if (error != 0) { 5968249195Smm error = SET_ERROR(EFAULT); 5969248571Smm goto out; 5970248571Smm } 5971249319Smm#else /* !illumos */ 5972249319Smm /* 5973249319Smm * We don't alloc/free zc only if talking to library ioctl version 2 5974249319Smm */ 5975249319Smm if (cflag != ZFS_CMD_COMPAT_LZC) { 5976219089Spjd zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 5977219089Spjd bzero(zc, sizeof(zfs_cmd_t)); 5978249319Smm } else { 5979249319Smm zc = (void *)arg; 5980249319Smm error = 0; 5981249319Smm } 5982249319Smm 5983249319Smm if (newioc) { 5984249319Smm zc_iocparm = (void *)arg; 5985249319Smm if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_t)) { 5986249319Smm error = SET_ERROR(EFAULT); 5987249319Smm goto out; 5988249319Smm } 5989249326Smm error = ddi_copyin((void *)(uintptr_t)zc_iocparm->zfs_cmd, zc, 5990249319Smm sizeof(zfs_cmd_t), flag); 5991249319Smm if (error != 0) { 5992249319Smm error = SET_ERROR(EFAULT); 5993249319Smm goto out; 5994249319Smm } 5995249319Smm } 5996249319Smm 5997249319Smm if (compat) { 5998248571Smm zfs_cmd_compat_get(zc, arg, cflag); 5999248571Smm oldvecnum = vecnum; 6000248571Smm error = zfs_ioctl_compat_pre(zc, &vecnum, cflag); 6001248571Smm if (error != 0) 6002248571Smm goto out; 6003248571Smm if (oldvecnum != vecnum) 6004248571Smm vec = &zfs_ioc_vec[vecnum]; 6005249319Smm } 6006249319Smm#endif /* !illumos */ 6007248571Smm 6008248571Smm zc->zc_iflags = flag & FKIOCTL; 6009248571Smm if (zc->zc_nvlist_src_size != 0) { 6010248571Smm error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 6011248571Smm zc->zc_iflags, &innvl); 6012248571Smm if (error != 0) 6013248571Smm goto out; 6014219089Spjd } 6015219089Spjd 6016248571Smm /* rewrite innvl for backwards compatibility */ 6017249319Smm if (compat) 6018248571Smm innvl = zfs_ioctl_compat_innvl(zc, innvl, vecnum, cflag); 6019168404Spjd 6020168404Spjd /* 6021168404Spjd * Ensure that all pool/dataset names are valid before we pass down to 6022168404Spjd * the lower layers. 6023168404Spjd */ 6024248571Smm zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 6025248571Smm switch (vec->zvec_namecheck) { 6026248571Smm case POOL_NAME: 6027248571Smm if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 6028249195Smm error = SET_ERROR(EINVAL); 6029248571Smm else 6030248571Smm error = pool_status_check(zc->zc_name, 6031248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 6032248571Smm break; 6033168404Spjd 6034248571Smm case DATASET_NAME: 6035248571Smm if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 6036249195Smm error = SET_ERROR(EINVAL); 6037248571Smm else 6038248571Smm error = pool_status_check(zc->zc_name, 6039248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 6040248571Smm break; 6041168404Spjd 6042248571Smm case NO_NAME: 6043248571Smm break; 6044168404Spjd } 6045168404Spjd 6046248571Smm if (error == 0 && !(flag & FKIOCTL)) 6047248571Smm error = vec->zvec_secpolicy(zc, innvl, cr); 6048168404Spjd 6049248571Smm if (error != 0) 6050248571Smm goto out; 6051248571Smm 6052248571Smm /* legacy ioctls can modify zc_name */ 6053260183Sdelphij len = strcspn(zc->zc_name, "/@#") + 1; 6054248571Smm saved_poolname = kmem_alloc(len, KM_SLEEP); 6055248571Smm (void) strlcpy(saved_poolname, zc->zc_name, len); 6056248571Smm 6057248571Smm if (vec->zvec_func != NULL) { 6058248571Smm nvlist_t *outnvl; 6059248571Smm int puterror = 0; 6060248571Smm spa_t *spa; 6061248571Smm nvlist_t *lognv = NULL; 6062248571Smm 6063248571Smm ASSERT(vec->zvec_legacy_func == NULL); 6064248571Smm 6065248571Smm /* 6066248571Smm * Add the innvl to the lognv before calling the func, 6067248571Smm * in case the func changes the innvl. 6068248571Smm */ 6069248571Smm if (vec->zvec_allow_log) { 6070248571Smm lognv = fnvlist_alloc(); 6071248571Smm fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, 6072248571Smm vec->zvec_name); 6073248571Smm if (!nvlist_empty(innvl)) { 6074248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, 6075248571Smm innvl); 6076248571Smm } 6077248571Smm } 6078248571Smm 6079248571Smm outnvl = fnvlist_alloc(); 6080248571Smm error = vec->zvec_func(zc->zc_name, innvl, outnvl); 6081248571Smm 6082248571Smm if (error == 0 && vec->zvec_allow_log && 6083248571Smm spa_open(zc->zc_name, &spa, FTAG) == 0) { 6084248571Smm if (!nvlist_empty(outnvl)) { 6085248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, 6086248571Smm outnvl); 6087248571Smm } 6088248571Smm (void) spa_history_log_nvl(spa, lognv); 6089248571Smm spa_close(spa, FTAG); 6090248571Smm } 6091248571Smm fnvlist_free(lognv); 6092248571Smm 6093248571Smm /* rewrite outnvl for backwards compatibility */ 6094249319Smm if (cflag != ZFS_CMD_COMPAT_NONE && cflag != ZFS_CMD_COMPAT_LZC) 6095248571Smm outnvl = zfs_ioctl_compat_outnvl(zc, outnvl, vecnum, 6096248571Smm cflag); 6097248571Smm 6098248571Smm if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { 6099248571Smm int smusherror = 0; 6100248571Smm if (vec->zvec_smush_outnvlist) { 6101248571Smm smusherror = nvlist_smush(outnvl, 6102248571Smm zc->zc_nvlist_dst_size); 6103248571Smm } 6104248571Smm if (smusherror == 0) 6105248571Smm puterror = put_nvlist(zc, outnvl); 6106248571Smm } 6107248571Smm 6108248571Smm if (puterror != 0) 6109248571Smm error = puterror; 6110248571Smm 6111248571Smm nvlist_free(outnvl); 6112248571Smm } else { 6113248571Smm error = vec->zvec_legacy_func(zc); 6114196985Spjd } 6115185029Spjd 6116248571Smmout: 6117248571Smm nvlist_free(innvl); 6118249319Smm 6119249319Smm if (compat) { 6120249319Smm zfs_ioctl_compat_post(zc, cmd, cflag); 6121249319Smm zfs_cmd_compat_put(zc, arg, vecnum, cflag); 6122249319Smm } 6123249319Smm 6124249004Smm#ifdef illumos 6125249004Smm rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); 6126248571Smm if (error == 0 && rc != 0) 6127249195Smm error = SET_ERROR(EFAULT); 6128249319Smm#else 6129249319Smm if (newioc) { 6130249326Smm rc = ddi_copyout(zc, (void *)(uintptr_t)zc_iocparm->zfs_cmd, 6131249319Smm sizeof (zfs_cmd_t), flag); 6132249319Smm if (error == 0 && rc != 0) 6133249319Smm error = SET_ERROR(EFAULT); 6134249319Smm } 6135249004Smm#endif 6136248571Smm if (error == 0 && vec->zvec_allow_log) { 6137248571Smm char *s = tsd_get(zfs_allow_log_key); 6138248571Smm if (s != NULL) 6139248571Smm strfree(s); 6140248571Smm (void) tsd_set(zfs_allow_log_key, saved_poolname); 6141248571Smm } else { 6142248571Smm if (saved_poolname != NULL) 6143248571Smm strfree(saved_poolname); 6144248571Smm } 6145248571Smm 6146248571Smm#ifdef illumos 6147248571Smm kmem_free(zc, sizeof (zfs_cmd_t)); 6148249319Smm#else 6149249319Smm /* 6150249319Smm * We don't alloc/free zc only if talking to library ioctl version 2 6151249319Smm */ 6152249319Smm if (cflag != ZFS_CMD_COMPAT_LZC) 6153249319Smm kmem_free(zc, sizeof (zfs_cmd_t)); 6154248571Smm#endif 6155168404Spjd return (error); 6156168404Spjd} 6157168404Spjd 6158219089Spjd#ifdef sun 6159219089Spjdstatic int 6160219089Spjdzfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 6161219089Spjd{ 6162219089Spjd if (cmd != DDI_ATTACH) 6163219089Spjd return (DDI_FAILURE); 6164219089Spjd 6165219089Spjd if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 6166219089Spjd DDI_PSEUDO, 0) == DDI_FAILURE) 6167219089Spjd return (DDI_FAILURE); 6168219089Spjd 6169219089Spjd zfs_dip = dip; 6170219089Spjd 6171219089Spjd ddi_report_dev(dip); 6172219089Spjd 6173219089Spjd return (DDI_SUCCESS); 6174219089Spjd} 6175219089Spjd 6176219089Spjdstatic int 6177219089Spjdzfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 6178219089Spjd{ 6179219089Spjd if (spa_busy() || zfs_busy() || zvol_busy()) 6180219089Spjd return (DDI_FAILURE); 6181219089Spjd 6182219089Spjd if (cmd != DDI_DETACH) 6183219089Spjd return (DDI_FAILURE); 6184219089Spjd 6185219089Spjd zfs_dip = NULL; 6186219089Spjd 6187219089Spjd ddi_prop_remove_all(dip); 6188219089Spjd ddi_remove_minor_node(dip, NULL); 6189219089Spjd 6190219089Spjd return (DDI_SUCCESS); 6191219089Spjd} 6192219089Spjd 6193219089Spjd/*ARGSUSED*/ 6194219089Spjdstatic int 6195219089Spjdzfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 6196219089Spjd{ 6197219089Spjd switch (infocmd) { 6198219089Spjd case DDI_INFO_DEVT2DEVINFO: 6199219089Spjd *result = zfs_dip; 6200219089Spjd return (DDI_SUCCESS); 6201219089Spjd 6202219089Spjd case DDI_INFO_DEVT2INSTANCE: 6203219089Spjd *result = (void *)0; 6204219089Spjd return (DDI_SUCCESS); 6205219089Spjd } 6206219089Spjd 6207219089Spjd return (DDI_FAILURE); 6208219089Spjd} 6209219089Spjd#endif /* sun */ 6210219089Spjd 6211168404Spjd/* 6212168404Spjd * OK, so this is a little weird. 6213168404Spjd * 6214168404Spjd * /dev/zfs is the control node, i.e. minor 0. 6215168404Spjd * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 6216168404Spjd * 6217168404Spjd * /dev/zfs has basically nothing to do except serve up ioctls, 6218168404Spjd * so most of the standard driver entry points are in zvol.c. 6219168404Spjd */ 6220219089Spjd#ifdef sun 6221219089Spjdstatic struct cb_ops zfs_cb_ops = { 6222219089Spjd zfsdev_open, /* open */ 6223219089Spjd zfsdev_close, /* close */ 6224219089Spjd zvol_strategy, /* strategy */ 6225219089Spjd nodev, /* print */ 6226219089Spjd zvol_dump, /* dump */ 6227219089Spjd zvol_read, /* read */ 6228219089Spjd zvol_write, /* write */ 6229219089Spjd zfsdev_ioctl, /* ioctl */ 6230219089Spjd nodev, /* devmap */ 6231219089Spjd nodev, /* mmap */ 6232219089Spjd nodev, /* segmap */ 6233219089Spjd nochpoll, /* poll */ 6234219089Spjd ddi_prop_op, /* prop_op */ 6235219089Spjd NULL, /* streamtab */ 6236219089Spjd D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 6237219089Spjd CB_REV, /* version */ 6238219089Spjd nodev, /* async read */ 6239219089Spjd nodev, /* async write */ 6240219089Spjd}; 6241219089Spjd 6242219089Spjdstatic struct dev_ops zfs_dev_ops = { 6243219089Spjd DEVO_REV, /* version */ 6244219089Spjd 0, /* refcnt */ 6245219089Spjd zfs_info, /* info */ 6246219089Spjd nulldev, /* identify */ 6247219089Spjd nulldev, /* probe */ 6248219089Spjd zfs_attach, /* attach */ 6249219089Spjd zfs_detach, /* detach */ 6250219089Spjd nodev, /* reset */ 6251219089Spjd &zfs_cb_ops, /* driver operations */ 6252219089Spjd NULL, /* no bus operations */ 6253219089Spjd NULL, /* power */ 6254219089Spjd ddi_quiesce_not_needed, /* quiesce */ 6255219089Spjd}; 6256219089Spjd 6257219089Spjdstatic struct modldrv zfs_modldrv = { 6258219089Spjd &mod_driverops, 6259219089Spjd "ZFS storage pool", 6260219089Spjd &zfs_dev_ops 6261219089Spjd}; 6262219089Spjd 6263219089Spjdstatic struct modlinkage modlinkage = { 6264219089Spjd MODREV_1, 6265219089Spjd (void *)&zfs_modlfs, 6266219089Spjd (void *)&zfs_modldrv, 6267219089Spjd NULL 6268219089Spjd}; 6269219089Spjd#endif /* sun */ 6270219089Spjd 6271168404Spjdstatic struct cdevsw zfs_cdevsw = { 6272168404Spjd .d_version = D_VERSION, 6273219089Spjd .d_open = zfsdev_open, 6274168404Spjd .d_ioctl = zfsdev_ioctl, 6275168404Spjd .d_name = ZFS_DEV_NAME 6276168404Spjd}; 6277168404Spjd 6278168404Spjdstatic void 6279248571Smmzfs_allow_log_destroy(void *arg) 6280248571Smm{ 6281248571Smm char *poolname = arg; 6282248571Smm strfree(poolname); 6283248571Smm} 6284248571Smm 6285248571Smmstatic void 6286168404Spjdzfsdev_init(void) 6287168404Spjd{ 6288185029Spjd zfsdev = make_dev(&zfs_cdevsw, 0x0, UID_ROOT, GID_OPERATOR, 0666, 6289168404Spjd ZFS_DEV_NAME); 6290168404Spjd} 6291168404Spjd 6292168404Spjdstatic void 6293168404Spjdzfsdev_fini(void) 6294168404Spjd{ 6295168404Spjd if (zfsdev != NULL) 6296168404Spjd destroy_dev(zfsdev); 6297168404Spjd} 6298168404Spjd 6299169929Spjdstatic struct root_hold_token *zfs_root_token; 6300196458Spjdstruct proc *zfsproc; 6301168404Spjd 6302219089Spjd#ifdef sun 6303219089Spjdint 6304219089Spjd_init(void) 6305219089Spjd{ 6306219089Spjd int error; 6307219089Spjd 6308219089Spjd spa_init(FREAD | FWRITE); 6309219089Spjd zfs_init(); 6310219089Spjd zvol_init(); 6311248571Smm zfs_ioctl_init(); 6312219089Spjd 6313219089Spjd if ((error = mod_install(&modlinkage)) != 0) { 6314219089Spjd zvol_fini(); 6315219089Spjd zfs_fini(); 6316219089Spjd spa_fini(); 6317219089Spjd return (error); 6318219089Spjd } 6319219089Spjd 6320219089Spjd tsd_create(&zfs_fsyncer_key, NULL); 6321248571Smm tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 6322248571Smm tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 6323219089Spjd 6324219089Spjd error = ldi_ident_from_mod(&modlinkage, &zfs_li); 6325219089Spjd ASSERT(error == 0); 6326219089Spjd mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 6327219089Spjd 6328219089Spjd return (0); 6329219089Spjd} 6330219089Spjd 6331219089Spjdint 6332219089Spjd_fini(void) 6333219089Spjd{ 6334219089Spjd int error; 6335219089Spjd 6336219089Spjd if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 6337249195Smm return (SET_ERROR(EBUSY)); 6338219089Spjd 6339219089Spjd if ((error = mod_remove(&modlinkage)) != 0) 6340219089Spjd return (error); 6341219089Spjd 6342219089Spjd zvol_fini(); 6343219089Spjd zfs_fini(); 6344219089Spjd spa_fini(); 6345219089Spjd if (zfs_nfsshare_inited) 6346219089Spjd (void) ddi_modclose(nfs_mod); 6347219089Spjd if (zfs_smbshare_inited) 6348219089Spjd (void) ddi_modclose(smbsrv_mod); 6349219089Spjd if (zfs_nfsshare_inited || zfs_smbshare_inited) 6350219089Spjd (void) ddi_modclose(sharefs_mod); 6351219089Spjd 6352219089Spjd tsd_destroy(&zfs_fsyncer_key); 6353219089Spjd ldi_ident_release(zfs_li); 6354219089Spjd zfs_li = NULL; 6355219089Spjd mutex_destroy(&zfs_share_lock); 6356219089Spjd 6357219089Spjd return (error); 6358219089Spjd} 6359219089Spjd 6360219089Spjdint 6361219089Spjd_info(struct modinfo *modinfop) 6362219089Spjd{ 6363219089Spjd return (mod_info(&modlinkage, modinfop)); 6364219089Spjd} 6365219089Spjd#endif /* sun */ 6366219089Spjd 6367253606Savgstatic int zfs__init(void); 6368253606Savgstatic int zfs__fini(void); 6369253606Savgstatic void zfs_shutdown(void *, int); 6370253606Savg 6371253606Savgstatic eventhandler_tag zfs_shutdown_event_tag; 6372253606Savg 6373253606Savgint 6374253606Savgzfs__init(void) 6375168404Spjd{ 6376168404Spjd 6377253606Savg zfs_root_token = root_mount_hold("ZFS"); 6378196291Spjd 6379253606Savg mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 6380196291Spjd 6381253606Savg spa_init(FREAD | FWRITE); 6382253606Savg zfs_init(); 6383253606Savg zvol_init(); 6384253606Savg zfs_ioctl_init(); 6385196291Spjd 6386253606Savg tsd_create(&zfs_fsyncer_key, NULL); 6387253606Savg tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 6388253606Savg tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 6389196291Spjd 6390253606Savg printf("ZFS storage pool version: features support (" SPA_VERSION_STRING ")\n"); 6391253606Savg root_mount_rel(zfs_root_token); 6392196291Spjd 6393253606Savg zfsdev_init(); 6394196291Spjd 6395253606Savg return (0); 6396253606Savg} 6397196291Spjd 6398253606Savgint 6399253606Savgzfs__fini(void) 6400253606Savg{ 6401253606Savg if (spa_busy() || zfs_busy() || zvol_busy() || 6402253606Savg zio_injection_enabled) { 6403253606Savg return (EBUSY); 6404253606Savg } 6405196291Spjd 6406253606Savg zfsdev_fini(); 6407253606Savg zvol_fini(); 6408253606Savg zfs_fini(); 6409253606Savg spa_fini(); 6410253606Savg 6411253606Savg tsd_destroy(&zfs_fsyncer_key); 6412253606Savg tsd_destroy(&rrw_tsd_key); 6413253606Savg tsd_destroy(&zfs_allow_log_key); 6414253606Savg 6415253606Savg mutex_destroy(&zfs_share_lock); 6416253606Savg 6417253606Savg return (0); 6418253606Savg} 6419253606Savg 6420253606Savgstatic void 6421253606Savgzfs_shutdown(void *arg __unused, int howto __unused) 6422253606Savg{ 6423253606Savg 6424253606Savg /* 6425253606Savg * ZFS fini routines can not properly work in a panic-ed system. 6426253606Savg */ 6427253606Savg if (panicstr == NULL) 6428253606Savg (void)zfs__fini(); 6429253606Savg} 6430253606Savg 6431253606Savg 6432253606Savgstatic int 6433253606Savgzfs_modevent(module_t mod, int type, void *unused __unused) 6434253606Savg{ 6435253606Savg int err; 6436253606Savg 6437253606Savg switch (type) { 6438253606Savg case MOD_LOAD: 6439253606Savg err = zfs__init(); 6440253606Savg if (err == 0) 6441253606Savg zfs_shutdown_event_tag = EVENTHANDLER_REGISTER( 6442253606Savg shutdown_post_sync, zfs_shutdown, NULL, 6443253606Savg SHUTDOWN_PRI_FIRST); 6444253606Savg return (err); 6445253606Savg case MOD_UNLOAD: 6446253606Savg err = zfs__fini(); 6447253606Savg if (err == 0 && zfs_shutdown_event_tag != NULL) 6448253606Savg EVENTHANDLER_DEREGISTER(shutdown_post_sync, 6449253606Savg zfs_shutdown_event_tag); 6450253606Savg return (err); 6451253606Savg case MOD_SHUTDOWN: 6452253606Savg return (0); 6453196291Spjd default: 6454196291Spjd break; 6455168404Spjd } 6456253606Savg return (EOPNOTSUPP); 6457168404Spjd} 6458168404Spjd 6459168404Spjdstatic moduledata_t zfs_mod = { 6460168404Spjd "zfsctrl", 6461168404Spjd zfs_modevent, 6462241394Skevlo 0 6463168404Spjd}; 6464169929SpjdDECLARE_MODULE(zfsctrl, zfs_mod, SI_SUB_VFS, SI_ORDER_ANY); 6465246242SavgMODULE_VERSION(zfsctrl, 1); 6466179280SjbMODULE_DEPEND(zfsctrl, opensolaris, 1, 1, 1); 6467193128SkmacyMODULE_DEPEND(zfsctrl, krpc, 1, 1, 1); 6468232938SadrianMODULE_DEPEND(zfsctrl, acl_nfs4, 1, 1, 1); 6469