zfs_ioctl.c revision 249319
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. 31168404Spjd */ 32168404Spjd 33248571Smm/* 34248571Smm * ZFS ioctls. 35248571Smm * 36248571Smm * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage 37248571Smm * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. 38248571Smm * 39248571Smm * There are two ways that we handle ioctls: the legacy way where almost 40248571Smm * all of the logic is in the ioctl callback, and the new way where most 41248571Smm * of the marshalling is handled in the common entry point, zfsdev_ioctl(). 42248571Smm * 43248571Smm * Non-legacy ioctls should be registered by calling 44248571Smm * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked 45248571Smm * from userland by lzc_ioctl(). 46248571Smm * 47248571Smm * The registration arguments are as follows: 48248571Smm * 49248571Smm * const char *name 50248571Smm * The name of the ioctl. This is used for history logging. If the 51248571Smm * ioctl returns successfully (the callback returns 0), and allow_log 52248571Smm * is true, then a history log entry will be recorded with the input & 53248571Smm * output nvlists. The log entry can be printed with "zpool history -i". 54248571Smm * 55248571Smm * zfs_ioc_t ioc 56248571Smm * The ioctl request number, which userland will pass to ioctl(2). 57248571Smm * The ioctl numbers can change from release to release, because 58248571Smm * the caller (libzfs) must be matched to the kernel. 59248571Smm * 60248571Smm * zfs_secpolicy_func_t *secpolicy 61248571Smm * This function will be called before the zfs_ioc_func_t, to 62248571Smm * determine if this operation is permitted. It should return EPERM 63248571Smm * on failure, and 0 on success. Checks include determining if the 64248571Smm * dataset is visible in this zone, and if the user has either all 65248571Smm * zfs privileges in the zone (SYS_MOUNT), or has been granted permission 66248571Smm * to do this operation on this dataset with "zfs allow". 67248571Smm * 68248571Smm * zfs_ioc_namecheck_t namecheck 69248571Smm * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool 70248571Smm * name, a dataset name, or nothing. If the name is not well-formed, 71248571Smm * the ioctl will fail and the callback will not be called. 72248571Smm * Therefore, the callback can assume that the name is well-formed 73248571Smm * (e.g. is null-terminated, doesn't have more than one '@' character, 74248571Smm * doesn't have invalid characters). 75248571Smm * 76248571Smm * zfs_ioc_poolcheck_t pool_check 77248571Smm * This specifies requirements on the pool state. If the pool does 78248571Smm * not meet them (is suspended or is readonly), the ioctl will fail 79248571Smm * and the callback will not be called. If any checks are specified 80248571Smm * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. 81248571Smm * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | 82248571Smm * POOL_CHECK_READONLY). 83248571Smm * 84248571Smm * boolean_t smush_outnvlist 85248571Smm * If smush_outnvlist is true, then the output is presumed to be a 86248571Smm * list of errors, and it will be "smushed" down to fit into the 87248571Smm * caller's buffer, by removing some entries and replacing them with a 88248571Smm * single "N_MORE_ERRORS" entry indicating how many were removed. See 89248571Smm * nvlist_smush() for details. If smush_outnvlist is false, and the 90248571Smm * outnvlist does not fit into the userland-provided buffer, then the 91248571Smm * ioctl will fail with ENOMEM. 92248571Smm * 93248571Smm * zfs_ioc_func_t *func 94248571Smm * The callback function that will perform the operation. 95248571Smm * 96248571Smm * The callback should return 0 on success, or an error number on 97248571Smm * failure. If the function fails, the userland ioctl will return -1, 98248571Smm * and errno will be set to the callback's return value. The callback 99248571Smm * will be called with the following arguments: 100248571Smm * 101248571Smm * const char *name 102248571Smm * The name of the pool or dataset to operate on, from 103248571Smm * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the 104248571Smm * expected type (pool, dataset, or none). 105248571Smm * 106248571Smm * nvlist_t *innvl 107248571Smm * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or 108248571Smm * NULL if no input nvlist was provided. Changes to this nvlist are 109248571Smm * ignored. If the input nvlist could not be deserialized, the 110248571Smm * ioctl will fail and the callback will not be called. 111248571Smm * 112248571Smm * nvlist_t *outnvl 113248571Smm * The output nvlist, initially empty. The callback can fill it in, 114248571Smm * and it will be returned to userland by serializing it into 115248571Smm * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization 116248571Smm * fails (e.g. because the caller didn't supply a large enough 117248571Smm * buffer), then the overall ioctl will fail. See the 118248571Smm * 'smush_nvlist' argument above for additional behaviors. 119248571Smm * 120248571Smm * There are two typical uses of the output nvlist: 121248571Smm * - To return state, e.g. property values. In this case, 122248571Smm * smush_outnvlist should be false. If the buffer was not large 123248571Smm * enough, the caller will reallocate a larger buffer and try 124248571Smm * the ioctl again. 125248571Smm * 126248571Smm * - To return multiple errors from an ioctl which makes on-disk 127248571Smm * changes. In this case, smush_outnvlist should be true. 128248571Smm * Ioctls which make on-disk modifications should generally not 129248571Smm * use the outnvl if they succeed, because the caller can not 130248571Smm * distinguish between the operation failing, and 131248571Smm * deserialization failing. 132248571Smm */ 133248571Smm 134168962Spjd#include <sys/types.h> 135168404Spjd#include <sys/param.h> 136168404Spjd#include <sys/systm.h> 137168404Spjd#include <sys/conf.h> 138168404Spjd#include <sys/kernel.h> 139168404Spjd#include <sys/lock.h> 140168404Spjd#include <sys/malloc.h> 141168404Spjd#include <sys/mutex.h> 142168404Spjd#include <sys/proc.h> 143168404Spjd#include <sys/errno.h> 144168404Spjd#include <sys/uio.h> 145168962Spjd#include <sys/buf.h> 146168404Spjd#include <sys/file.h> 147168404Spjd#include <sys/kmem.h> 148168404Spjd#include <sys/conf.h> 149168404Spjd#include <sys/cmn_err.h> 150168404Spjd#include <sys/stat.h> 151168404Spjd#include <sys/zfs_ioctl.h> 152209962Smm#include <sys/zfs_vfsops.h> 153185029Spjd#include <sys/zfs_znode.h> 154168404Spjd#include <sys/zap.h> 155168404Spjd#include <sys/spa.h> 156168404Spjd#include <sys/spa_impl.h> 157168404Spjd#include <sys/vdev.h> 158168404Spjd#include <sys/dmu.h> 159168404Spjd#include <sys/dsl_dir.h> 160168404Spjd#include <sys/dsl_dataset.h> 161168404Spjd#include <sys/dsl_prop.h> 162185029Spjd#include <sys/dsl_deleg.h> 163185029Spjd#include <sys/dmu_objset.h> 164235222Smm#include <sys/dmu_impl.h> 165248571Smm#include <sys/dmu_tx.h> 166168962Spjd#include <sys/sunddi.h> 167168962Spjd#include <sys/policy.h> 168168962Spjd#include <sys/zone.h> 169168404Spjd#include <sys/nvpair.h> 170168404Spjd#include <sys/mount.h> 171168404Spjd#include <sys/taskqueue.h> 172168404Spjd#include <sys/sdt.h> 173168404Spjd#include <sys/varargs.h> 174168404Spjd#include <sys/fs/zfs.h> 175168404Spjd#include <sys/zfs_ctldir.h> 176185029Spjd#include <sys/zfs_dir.h> 177219089Spjd#include <sys/zfs_onexit.h> 178168404Spjd#include <sys/zvol.h> 179219089Spjd#include <sys/dsl_scan.h> 180185029Spjd#include <sys/dmu_objset.h> 181248571Smm#include <sys/dmu_send.h> 182248571Smm#include <sys/dsl_destroy.h> 183248571Smm#include <sys/dsl_userhold.h> 184246586Sdelphij#include <sys/zfeature.h> 185168404Spjd 186168404Spjd#include "zfs_namecheck.h" 187168404Spjd#include "zfs_prop.h" 188185029Spjd#include "zfs_deleg.h" 189219089Spjd#include "zfs_comutil.h" 190219089Spjd#include "zfs_ioctl_compat.h" 191168404Spjd 192219089SpjdCTASSERT(sizeof(zfs_cmd_t) < IOCPARM_MAX); 193168404Spjd 194230397Spjdstatic int snapshot_list_prefetch; 195230397SpjdSYSCTL_DECL(_vfs_zfs); 196230397SpjdTUNABLE_INT("vfs.zfs.snapshot_list_prefetch", &snapshot_list_prefetch); 197230397SpjdSYSCTL_INT(_vfs_zfs, OID_AUTO, snapshot_list_prefetch, CTLFLAG_RW, 198230397Spjd &snapshot_list_prefetch, 0, "Prefetch data when listing snapshots"); 199230397Spjd 200168404Spjdstatic struct cdev *zfsdev; 201168404Spjd 202168404Spjdextern void zfs_init(void); 203168404Spjdextern void zfs_fini(void); 204168404Spjd 205248571Smmuint_t zfs_fsyncer_key; 206248571Smmextern uint_t rrw_tsd_key; 207248571Smmstatic uint_t zfs_allow_log_key; 208168404Spjd 209248571Smmtypedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); 210248571Smmtypedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); 211248571Smmtypedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); 212248571Smm 213209962Smmtypedef enum { 214209962Smm NO_NAME, 215209962Smm POOL_NAME, 216209962Smm DATASET_NAME 217209962Smm} zfs_ioc_namecheck_t; 218209962Smm 219246688Smmtypedef enum { 220246688Smm POOL_CHECK_NONE = 1 << 0, 221246688Smm POOL_CHECK_SUSPENDED = 1 << 1, 222248571Smm POOL_CHECK_READONLY = 1 << 2, 223246688Smm} zfs_ioc_poolcheck_t; 224246688Smm 225168404Spjdtypedef struct zfs_ioc_vec { 226248571Smm zfs_ioc_legacy_func_t *zvec_legacy_func; 227168404Spjd zfs_ioc_func_t *zvec_func; 228168404Spjd zfs_secpolicy_func_t *zvec_secpolicy; 229209962Smm zfs_ioc_namecheck_t zvec_namecheck; 230248571Smm boolean_t zvec_allow_log; 231246688Smm zfs_ioc_poolcheck_t zvec_pool_check; 232248571Smm boolean_t zvec_smush_outnvlist; 233248571Smm const char *zvec_name; 234168404Spjd} zfs_ioc_vec_t; 235168404Spjd 236209962Smm/* This array is indexed by zfs_userquota_prop_t */ 237209962Smmstatic const char *userquota_perms[] = { 238209962Smm ZFS_DELEG_PERM_USERUSED, 239209962Smm ZFS_DELEG_PERM_USERQUOTA, 240209962Smm ZFS_DELEG_PERM_GROUPUSED, 241209962Smm ZFS_DELEG_PERM_GROUPQUOTA, 242209962Smm}; 243209962Smm 244209962Smmstatic int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); 245219089Spjdstatic int zfs_check_settable(const char *name, nvpair_t *property, 246219089Spjd cred_t *cr); 247219089Spjdstatic int zfs_check_clearable(char *dataset, nvlist_t *props, 248219089Spjd nvlist_t **errors); 249185029Spjdstatic int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, 250185029Spjd boolean_t *); 251248571Smmint zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); 252248571Smmstatic int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); 253219089Spjd 254219089Spjdstatic void zfsdev_close(void *data); 255185029Spjd 256248571Smmstatic int zfs_prop_activate_feature(spa_t *spa, zfeature_info_t *feature); 257246586Sdelphij 258168404Spjd/* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ 259168404Spjdvoid 260168404Spjd__dprintf(const char *file, const char *func, int line, const char *fmt, ...) 261168404Spjd{ 262168404Spjd const char *newfile; 263219089Spjd char buf[512]; 264168404Spjd va_list adx; 265168404Spjd 266168404Spjd /* 267168404Spjd * Get rid of annoying "../common/" prefix to filename. 268168404Spjd */ 269168404Spjd newfile = strrchr(file, '/'); 270168404Spjd if (newfile != NULL) { 271168404Spjd newfile = newfile + 1; /* Get rid of leading / */ 272168404Spjd } else { 273168404Spjd newfile = file; 274168404Spjd } 275168404Spjd 276168404Spjd va_start(adx, fmt); 277168404Spjd (void) vsnprintf(buf, sizeof (buf), fmt, adx); 278168404Spjd va_end(adx); 279168404Spjd 280168404Spjd /* 281168404Spjd * To get this data, use the zfs-dprintf probe as so: 282168404Spjd * dtrace -q -n 'zfs-dprintf \ 283168404Spjd * /stringof(arg0) == "dbuf.c"/ \ 284168404Spjd * {printf("%s: %s", stringof(arg1), stringof(arg3))}' 285168404Spjd * arg0 = file name 286168404Spjd * arg1 = function name 287168404Spjd * arg2 = line number 288168404Spjd * arg3 = message 289168404Spjd */ 290168404Spjd DTRACE_PROBE4(zfs__dprintf, 291168404Spjd char *, newfile, char *, func, int, line, char *, buf); 292168404Spjd} 293168404Spjd 294185029Spjdstatic void 295185029Spjdhistory_str_free(char *buf) 296185029Spjd{ 297185029Spjd kmem_free(buf, HIS_MAX_RECORD_LEN); 298185029Spjd} 299185029Spjd 300185029Spjdstatic char * 301185029Spjdhistory_str_get(zfs_cmd_t *zc) 302185029Spjd{ 303185029Spjd char *buf; 304185029Spjd 305185029Spjd if (zc->zc_history == 0) 306185029Spjd return (NULL); 307185029Spjd 308185029Spjd buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); 309185029Spjd if (copyinstr((void *)(uintptr_t)zc->zc_history, 310185029Spjd buf, HIS_MAX_RECORD_LEN, NULL) != 0) { 311185029Spjd history_str_free(buf); 312185029Spjd return (NULL); 313185029Spjd } 314185029Spjd 315185029Spjd buf[HIS_MAX_RECORD_LEN -1] = '\0'; 316185029Spjd 317185029Spjd return (buf); 318185029Spjd} 319185029Spjd 320168404Spjd/* 321185029Spjd * Check to see if the named dataset is currently defined as bootable 322185029Spjd */ 323185029Spjdstatic boolean_t 324185029Spjdzfs_is_bootfs(const char *name) 325185029Spjd{ 326219089Spjd objset_t *os; 327185029Spjd 328219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 329219089Spjd boolean_t ret; 330219089Spjd ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); 331219089Spjd dmu_objset_rele(os, FTAG); 332219089Spjd return (ret); 333185029Spjd } 334219089Spjd return (B_FALSE); 335185029Spjd} 336185029Spjd 337185029Spjd/* 338185029Spjd * zfs_earlier_version 339185029Spjd * 340185029Spjd * 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 * zpl_earlier_version 359185029Spjd * 360185029Spjd * Return TRUE if the ZPL version is less than requested version. 361185029Spjd */ 362185029Spjdstatic boolean_t 363185029Spjdzpl_earlier_version(const char *name, int version) 364185029Spjd{ 365185029Spjd objset_t *os; 366185029Spjd boolean_t rc = B_TRUE; 367185029Spjd 368219089Spjd if (dmu_objset_hold(name, FTAG, &os) == 0) { 369185029Spjd uint64_t zplversion; 370185029Spjd 371219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 372219089Spjd dmu_objset_rele(os, FTAG); 373219089Spjd return (B_TRUE); 374219089Spjd } 375219089Spjd /* XXX reading from non-owned objset */ 376185029Spjd if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) 377185029Spjd rc = zplversion < version; 378219089Spjd dmu_objset_rele(os, FTAG); 379185029Spjd } 380185029Spjd return (rc); 381185029Spjd} 382185029Spjd 383185029Spjdstatic void 384185029Spjdzfs_log_history(zfs_cmd_t *zc) 385185029Spjd{ 386185029Spjd spa_t *spa; 387185029Spjd char *buf; 388185029Spjd 389185029Spjd if ((buf = history_str_get(zc)) == NULL) 390185029Spjd return; 391185029Spjd 392185029Spjd if (spa_open(zc->zc_name, &spa, FTAG) == 0) { 393185029Spjd if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) 394248571Smm (void) spa_history_log(spa, buf); 395185029Spjd spa_close(spa, FTAG); 396185029Spjd } 397185029Spjd history_str_free(buf); 398185029Spjd} 399185029Spjd 400185029Spjd/* 401168404Spjd * Policy for top-level read operations (list pools). Requires no privileges, 402168404Spjd * and can be used in the local zone, as there is no associated dataset. 403168404Spjd */ 404168404Spjd/* ARGSUSED */ 405168404Spjdstatic int 406248571Smmzfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 407168404Spjd{ 408168404Spjd return (0); 409168404Spjd} 410168404Spjd 411168404Spjd/* 412168404Spjd * Policy for dataset read operations (list children, get statistics). Requires 413168404Spjd * no privileges, but must be visible in the local zone. 414168404Spjd */ 415168404Spjd/* ARGSUSED */ 416168404Spjdstatic int 417248571Smmzfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 418168404Spjd{ 419185029Spjd if (INGLOBALZONE(curthread) || 420185029Spjd zone_dataset_visible(zc->zc_name, NULL)) 421168404Spjd return (0); 422168404Spjd 423249195Smm return (SET_ERROR(ENOENT)); 424168404Spjd} 425168404Spjd 426168404Spjdstatic int 427219089Spjdzfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) 428168404Spjd{ 429168404Spjd int writable = 1; 430168404Spjd 431168404Spjd /* 432168404Spjd * The dataset must be visible by this zone -- check this first 433168404Spjd * so they don't see EPERM on something they shouldn't know about. 434168404Spjd */ 435185029Spjd if (!INGLOBALZONE(curthread) && 436168404Spjd !zone_dataset_visible(dataset, &writable)) 437249195Smm return (SET_ERROR(ENOENT)); 438168404Spjd 439185029Spjd if (INGLOBALZONE(curthread)) { 440168404Spjd /* 441168404Spjd * If the fs is zoned, only root can access it from the 442168404Spjd * global zone. 443168404Spjd */ 444168404Spjd if (secpolicy_zfs(cr) && zoned) 445249195Smm return (SET_ERROR(EPERM)); 446168404Spjd } else { 447168404Spjd /* 448168404Spjd * If we are in a local zone, the 'zoned' property must be set. 449168404Spjd */ 450168404Spjd if (!zoned) 451249195Smm return (SET_ERROR(EPERM)); 452168404Spjd 453168404Spjd /* must be writable by this zone */ 454168404Spjd if (!writable) 455249195Smm return (SET_ERROR(EPERM)); 456168404Spjd } 457168404Spjd return (0); 458168404Spjd} 459168404Spjd 460219089Spjdstatic int 461219089Spjdzfs_dozonecheck(const char *dataset, cred_t *cr) 462219089Spjd{ 463219089Spjd uint64_t zoned; 464219089Spjd 465219089Spjd if (dsl_prop_get_integer(dataset, "jailed", &zoned, NULL)) 466249195Smm return (SET_ERROR(ENOENT)); 467219089Spjd 468219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 469219089Spjd} 470219089Spjd 471219089Spjdstatic int 472219089Spjdzfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) 473219089Spjd{ 474219089Spjd uint64_t zoned; 475219089Spjd 476248571Smm if (dsl_prop_get_int_ds(ds, "jailed", &zoned)) 477249195Smm return (SET_ERROR(ENOENT)); 478219089Spjd 479219089Spjd return (zfs_dozonecheck_impl(dataset, zoned, cr)); 480219089Spjd} 481219089Spjd 482248571Smmstatic int 483248571Smmzfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, 484248571Smm const char *perm, cred_t *cr) 485168404Spjd{ 486168404Spjd int error; 487168404Spjd 488228103Smm error = zfs_dozonecheck_ds(name, ds, cr); 489185029Spjd if (error == 0) { 490185029Spjd error = secpolicy_zfs(cr); 491248571Smm if (error != 0) 492248571Smm error = dsl_deleg_access_impl(ds, perm, cr); 493185029Spjd } 494185029Spjd return (error); 495185029Spjd} 496185029Spjd 497248571Smmstatic int 498248571Smmzfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) 499219089Spjd{ 500219089Spjd int error; 501248571Smm dsl_dataset_t *ds; 502248571Smm dsl_pool_t *dp; 503219089Spjd 504248571Smm error = dsl_pool_hold(name, FTAG, &dp); 505248571Smm if (error != 0) 506248571Smm return (error); 507248571Smm 508248571Smm error = dsl_dataset_hold(dp, name, FTAG, &ds); 509248571Smm if (error != 0) { 510248571Smm dsl_pool_rele(dp, FTAG); 511248571Smm return (error); 512219089Spjd } 513248571Smm 514248571Smm error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); 515248571Smm 516248571Smm dsl_dataset_rele(ds, FTAG); 517248571Smm dsl_pool_rele(dp, FTAG); 518219089Spjd return (error); 519219089Spjd} 520219089Spjd 521219089Spjd#ifdef SECLABEL 522219089Spjd/* 523219089Spjd * Policy for setting the security label property. 524219089Spjd * 525219089Spjd * Returns 0 for success, non-zero for access and other errors. 526219089Spjd */ 527185029Spjdstatic int 528219089Spjdzfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) 529185029Spjd{ 530219089Spjd char ds_hexsl[MAXNAMELEN]; 531219089Spjd bslabel_t ds_sl, new_sl; 532219089Spjd boolean_t new_default = FALSE; 533219089Spjd uint64_t zoned; 534219089Spjd int needed_priv = -1; 535219089Spjd int error; 536219089Spjd 537219089Spjd /* First get the existing dataset label. */ 538219089Spjd error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), 539219089Spjd 1, sizeof (ds_hexsl), &ds_hexsl, NULL); 540248571Smm if (error != 0) 541249195Smm return (SET_ERROR(EPERM)); 542219089Spjd 543219089Spjd if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) 544219089Spjd new_default = TRUE; 545219089Spjd 546219089Spjd /* The label must be translatable */ 547219089Spjd if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) 548249195Smm return (SET_ERROR(EINVAL)); 549219089Spjd 550185029Spjd /* 551219089Spjd * In a non-global zone, disallow attempts to set a label that 552219089Spjd * doesn't match that of the zone; otherwise no other checks 553219089Spjd * are needed. 554219089Spjd */ 555219089Spjd if (!INGLOBALZONE(curproc)) { 556219089Spjd if (new_default || !blequal(&new_sl, CR_SL(CRED()))) 557249195Smm return (SET_ERROR(EPERM)); 558219089Spjd return (0); 559219089Spjd } 560219089Spjd 561219089Spjd /* 562219089Spjd * For global-zone datasets (i.e., those whose zoned property is 563219089Spjd * "off", verify that the specified new label is valid for the 564219089Spjd * global zone. 565219089Spjd */ 566219089Spjd if (dsl_prop_get_integer(name, 567219089Spjd zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) 568249195Smm return (SET_ERROR(EPERM)); 569219089Spjd if (!zoned) { 570219089Spjd if (zfs_check_global_label(name, strval) != 0) 571249195Smm return (SET_ERROR(EPERM)); 572219089Spjd } 573219089Spjd 574219089Spjd /* 575219089Spjd * If the existing dataset label is nondefault, check if the 576219089Spjd * dataset is mounted (label cannot be changed while mounted). 577219089Spjd * Get the zfsvfs; if there isn't one, then the dataset isn't 578219089Spjd * mounted (or isn't a dataset, doesn't exist, ...). 579219089Spjd */ 580219089Spjd if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { 581219089Spjd objset_t *os; 582219089Spjd static char *setsl_tag = "setsl_tag"; 583219089Spjd 584219089Spjd /* 585219089Spjd * Try to own the dataset; abort if there is any error, 586219089Spjd * (e.g., already mounted, in use, or other error). 587219089Spjd */ 588219089Spjd error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, 589219089Spjd setsl_tag, &os); 590248571Smm if (error != 0) 591249195Smm return (SET_ERROR(EPERM)); 592219089Spjd 593219089Spjd dmu_objset_disown(os, setsl_tag); 594219089Spjd 595219089Spjd if (new_default) { 596219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 597219089Spjd goto out_check; 598219089Spjd } 599219089Spjd 600219089Spjd if (hexstr_to_label(strval, &new_sl) != 0) 601249195Smm return (SET_ERROR(EPERM)); 602219089Spjd 603219089Spjd if (blstrictdom(&ds_sl, &new_sl)) 604219089Spjd needed_priv = PRIV_FILE_DOWNGRADE_SL; 605219089Spjd else if (blstrictdom(&new_sl, &ds_sl)) 606219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 607219089Spjd } else { 608219089Spjd /* dataset currently has a default label */ 609219089Spjd if (!new_default) 610219089Spjd needed_priv = PRIV_FILE_UPGRADE_SL; 611219089Spjd } 612219089Spjd 613219089Spjdout_check: 614219089Spjd if (needed_priv != -1) 615219089Spjd return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); 616219089Spjd return (0); 617219089Spjd} 618219089Spjd#endif /* SECLABEL */ 619219089Spjd 620219089Spjdstatic int 621219089Spjdzfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, 622219089Spjd cred_t *cr) 623219089Spjd{ 624219089Spjd char *strval; 625219089Spjd 626219089Spjd /* 627185029Spjd * Check permissions for special properties. 628185029Spjd */ 629185029Spjd switch (prop) { 630185029Spjd case ZFS_PROP_ZONED: 631185029Spjd /* 632185029Spjd * Disallow setting of 'zoned' from within a local zone. 633185029Spjd */ 634185029Spjd if (!INGLOBALZONE(curthread)) 635249195Smm return (SET_ERROR(EPERM)); 636185029Spjd break; 637185029Spjd 638185029Spjd case ZFS_PROP_QUOTA: 639185029Spjd if (!INGLOBALZONE(curthread)) { 640185029Spjd uint64_t zoned; 641185029Spjd char setpoint[MAXNAMELEN]; 642185029Spjd /* 643185029Spjd * Unprivileged users are allowed to modify the 644185029Spjd * quota on things *under* (ie. contained by) 645185029Spjd * the thing they own. 646185029Spjd */ 647219089Spjd if (dsl_prop_get_integer(dsname, "jailed", &zoned, 648185029Spjd setpoint)) 649249195Smm return (SET_ERROR(EPERM)); 650219089Spjd if (!zoned || strlen(dsname) <= strlen(setpoint)) 651249195Smm return (SET_ERROR(EPERM)); 652185029Spjd } 653185029Spjd break; 654219089Spjd 655219089Spjd case ZFS_PROP_MLSLABEL: 656219089Spjd#ifdef SECLABEL 657219089Spjd if (!is_system_labeled()) 658249195Smm return (SET_ERROR(EPERM)); 659219089Spjd 660219089Spjd if (nvpair_value_string(propval, &strval) == 0) { 661219089Spjd int err; 662219089Spjd 663219089Spjd err = zfs_set_slabel_policy(dsname, strval, CRED()); 664219089Spjd if (err != 0) 665219089Spjd return (err); 666219089Spjd } 667219089Spjd#else 668219089Spjd return (EOPNOTSUPP); 669219089Spjd#endif 670219089Spjd break; 671185029Spjd } 672185029Spjd 673219089Spjd return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); 674185029Spjd} 675185029Spjd 676248571Smm/* ARGSUSED */ 677248571Smmstatic int 678248571Smmzfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 679185029Spjd{ 680185029Spjd int error; 681185029Spjd 682185029Spjd error = zfs_dozonecheck(zc->zc_name, cr); 683248571Smm if (error != 0) 684168404Spjd return (error); 685168404Spjd 686185029Spjd /* 687185029Spjd * permission to set permissions will be evaluated later in 688185029Spjd * dsl_deleg_can_allow() 689185029Spjd */ 690185029Spjd return (0); 691168404Spjd} 692168404Spjd 693248571Smm/* ARGSUSED */ 694248571Smmstatic int 695248571Smmzfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 696185029Spjd{ 697219089Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 698219089Spjd ZFS_DELEG_PERM_ROLLBACK, cr)); 699185029Spjd} 700185029Spjd 701248571Smm/* ARGSUSED */ 702248571Smmstatic int 703248571Smmzfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 704185029Spjd{ 705219089Spjd dsl_pool_t *dp; 706219089Spjd dsl_dataset_t *ds; 707219089Spjd char *cp; 708219089Spjd int error; 709219089Spjd 710219089Spjd /* 711219089Spjd * Generate the current snapshot name from the given objsetid, then 712219089Spjd * use that name for the secpolicy/zone checks. 713219089Spjd */ 714219089Spjd cp = strchr(zc->zc_name, '@'); 715219089Spjd if (cp == NULL) 716249195Smm return (SET_ERROR(EINVAL)); 717248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 718248571Smm if (error != 0) 719219089Spjd return (error); 720219089Spjd 721219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); 722248571Smm if (error != 0) { 723248571Smm dsl_pool_rele(dp, FTAG); 724219089Spjd return (error); 725248571Smm } 726219089Spjd 727219089Spjd dsl_dataset_name(ds, zc->zc_name); 728219089Spjd 729219089Spjd error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, 730219089Spjd ZFS_DELEG_PERM_SEND, cr); 731219089Spjd dsl_dataset_rele(ds, FTAG); 732248571Smm dsl_pool_rele(dp, FTAG); 733219089Spjd 734219089Spjd return (error); 735185029Spjd} 736185029Spjd 737248571Smm/* ARGSUSED */ 738209962Smmstatic int 739248571Smmzfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 740209962Smm{ 741248571Smm return (zfs_secpolicy_write_perms(zc->zc_name, 742248571Smm ZFS_DELEG_PERM_SEND, cr)); 743248571Smm} 744248571Smm 745248571Smm/* ARGSUSED */ 746248571Smmstatic int 747248571Smmzfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 748248571Smm{ 749209962Smm vnode_t *vp; 750209962Smm int error; 751209962Smm 752209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 753209962Smm NO_FOLLOW, NULL, &vp)) != 0) 754209962Smm return (error); 755209962Smm 756209962Smm /* Now make sure mntpnt and dataset are ZFS */ 757209962Smm 758209962Smm if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 759209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 760209962Smm zc->zc_name) != 0)) { 761209962Smm VN_RELE(vp); 762249195Smm return (SET_ERROR(EPERM)); 763209962Smm } 764209962Smm 765209962Smm VN_RELE(vp); 766209962Smm return (dsl_deleg_access(zc->zc_name, 767209962Smm ZFS_DELEG_PERM_SHARE, cr)); 768209962Smm} 769209962Smm 770185029Spjdint 771248571Smmzfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 772185029Spjd{ 773185029Spjd if (!INGLOBALZONE(curthread)) 774249195Smm return (SET_ERROR(EPERM)); 775185029Spjd 776185029Spjd if (secpolicy_nfs(cr) == 0) { 777185029Spjd return (0); 778185029Spjd } else { 779248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 780209962Smm } 781209962Smm} 782185029Spjd 783209962Smmint 784248571Smmzfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 785209962Smm{ 786209962Smm if (!INGLOBALZONE(curthread)) 787249195Smm return (SET_ERROR(EPERM)); 788185029Spjd 789209962Smm if (secpolicy_smb(cr) == 0) { 790209962Smm return (0); 791209962Smm } else { 792248571Smm return (zfs_secpolicy_deleg_share(zc, innvl, cr)); 793185029Spjd } 794185029Spjd} 795185029Spjd 796168404Spjdstatic int 797185029Spjdzfs_get_parent(const char *datasetname, char *parent, int parentsize) 798168404Spjd{ 799168404Spjd char *cp; 800168404Spjd 801168404Spjd /* 802168404Spjd * Remove the @bla or /bla from the end of the name to get the parent. 803168404Spjd */ 804185029Spjd (void) strncpy(parent, datasetname, parentsize); 805185029Spjd cp = strrchr(parent, '@'); 806168404Spjd if (cp != NULL) { 807168404Spjd cp[0] = '\0'; 808168404Spjd } else { 809185029Spjd cp = strrchr(parent, '/'); 810168404Spjd if (cp == NULL) 811249195Smm return (SET_ERROR(ENOENT)); 812168404Spjd cp[0] = '\0'; 813185029Spjd } 814168404Spjd 815185029Spjd return (0); 816185029Spjd} 817185029Spjd 818185029Spjdint 819185029Spjdzfs_secpolicy_destroy_perms(const char *name, cred_t *cr) 820185029Spjd{ 821185029Spjd int error; 822185029Spjd 823185029Spjd if ((error = zfs_secpolicy_write_perms(name, 824185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 825185029Spjd return (error); 826185029Spjd 827185029Spjd return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); 828185029Spjd} 829185029Spjd 830248571Smm/* ARGSUSED */ 831185029Spjdstatic int 832248571Smmzfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 833185029Spjd{ 834185029Spjd return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); 835185029Spjd} 836185029Spjd 837185029Spjd/* 838219089Spjd * Destroying snapshots with delegated permissions requires 839248571Smm * descendant mount and destroy permissions. 840185029Spjd */ 841248571Smm/* ARGSUSED */ 842185029Spjdstatic int 843248571Smmzfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 844185029Spjd{ 845248571Smm nvlist_t *snaps; 846248571Smm nvpair_t *pair, *nextpair; 847248571Smm int error = 0; 848219089Spjd 849248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 850249195Smm return (SET_ERROR(EINVAL)); 851248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 852248571Smm pair = nextpair) { 853248571Smm dsl_pool_t *dp; 854248571Smm dsl_dataset_t *ds; 855219089Spjd 856248571Smm error = dsl_pool_hold(nvpair_name(pair), FTAG, &dp); 857248571Smm if (error != 0) 858248571Smm break; 859248571Smm nextpair = nvlist_next_nvpair(snaps, pair); 860248571Smm error = dsl_dataset_hold(dp, nvpair_name(pair), FTAG, &ds); 861248571Smm if (error == 0) 862248571Smm dsl_dataset_rele(ds, FTAG); 863248571Smm dsl_pool_rele(dp, FTAG); 864219089Spjd 865248571Smm if (error == 0) { 866248571Smm error = zfs_secpolicy_destroy_perms(nvpair_name(pair), 867248571Smm cr); 868248571Smm } else if (error == ENOENT) { 869248571Smm /* 870248571Smm * Ignore any snapshots that don't exist (we consider 871248571Smm * them "already destroyed"). Remove the name from the 872248571Smm * nvl here in case the snapshot is created between 873248571Smm * now and when we try to destroy it (in which case 874248571Smm * we don't want to destroy it since we haven't 875248571Smm * checked for permission). 876248571Smm */ 877248571Smm fnvlist_remove_nvpair(snaps, pair); 878248571Smm error = 0; 879248571Smm } 880248571Smm if (error != 0) 881248571Smm break; 882248571Smm } 883222050Smm 884219089Spjd return (error); 885185029Spjd} 886185029Spjd 887185029Spjdint 888185029Spjdzfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) 889185029Spjd{ 890219089Spjd char parentname[MAXNAMELEN]; 891185029Spjd int error; 892185029Spjd 893185029Spjd if ((error = zfs_secpolicy_write_perms(from, 894185029Spjd ZFS_DELEG_PERM_RENAME, cr)) != 0) 895185029Spjd return (error); 896185029Spjd 897185029Spjd if ((error = zfs_secpolicy_write_perms(from, 898185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 899185029Spjd return (error); 900185029Spjd 901185029Spjd if ((error = zfs_get_parent(to, parentname, 902185029Spjd sizeof (parentname))) != 0) 903185029Spjd return (error); 904185029Spjd 905185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 906185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 907185029Spjd return (error); 908185029Spjd 909185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 910185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 911185029Spjd return (error); 912185029Spjd 913185029Spjd return (error); 914185029Spjd} 915185029Spjd 916248571Smm/* ARGSUSED */ 917185029Spjdstatic int 918248571Smmzfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 919185029Spjd{ 920240870Spjd char *at = NULL; 921240870Spjd int error; 922240870Spjd 923240870Spjd if ((zc->zc_cookie & 1) != 0) { 924240870Spjd /* 925240870Spjd * This is recursive rename, so the starting snapshot might 926240870Spjd * not exist. Check file system or volume permission instead. 927240870Spjd */ 928240870Spjd at = strchr(zc->zc_name, '@'); 929240870Spjd if (at == NULL) 930240870Spjd return (EINVAL); 931240870Spjd *at = '\0'; 932240870Spjd } 933240870Spjd 934240870Spjd error = zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr); 935240870Spjd 936240870Spjd if (at != NULL) 937240870Spjd *at = '@'; 938240870Spjd 939240870Spjd return (error); 940185029Spjd} 941185029Spjd 942248571Smm/* ARGSUSED */ 943185029Spjdstatic int 944248571Smmzfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 945185029Spjd{ 946248571Smm dsl_pool_t *dp; 947248571Smm dsl_dataset_t *clone; 948185029Spjd int error; 949185029Spjd 950185029Spjd error = zfs_secpolicy_write_perms(zc->zc_name, 951185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 952248571Smm if (error != 0) 953185029Spjd return (error); 954185029Spjd 955248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 956248571Smm if (error != 0) 957248571Smm return (error); 958185029Spjd 959248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); 960248571Smm 961185029Spjd if (error == 0) { 962248571Smm char parentname[MAXNAMELEN]; 963248571Smm dsl_dataset_t *origin = NULL; 964185029Spjd dsl_dir_t *dd; 965248571Smm dd = clone->ds_dir; 966185029Spjd 967185029Spjd error = dsl_dataset_hold_obj(dd->dd_pool, 968248571Smm dd->dd_phys->dd_origin_obj, FTAG, &origin); 969248571Smm if (error != 0) { 970248571Smm dsl_dataset_rele(clone, FTAG); 971248571Smm dsl_pool_rele(dp, FTAG); 972185029Spjd return (error); 973185029Spjd } 974185029Spjd 975248571Smm error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, 976185029Spjd ZFS_DELEG_PERM_MOUNT, cr); 977185029Spjd 978248571Smm dsl_dataset_name(origin, parentname); 979248571Smm if (error == 0) { 980248571Smm error = zfs_secpolicy_write_perms_ds(parentname, origin, 981185029Spjd ZFS_DELEG_PERM_PROMOTE, cr); 982248571Smm } 983248571Smm dsl_dataset_rele(clone, FTAG); 984248571Smm dsl_dataset_rele(origin, FTAG); 985168404Spjd } 986248571Smm dsl_pool_rele(dp, FTAG); 987185029Spjd return (error); 988185029Spjd} 989168404Spjd 990248571Smm/* ARGSUSED */ 991185029Spjdstatic int 992248571Smmzfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 993185029Spjd{ 994185029Spjd int error; 995185029Spjd 996185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 997185029Spjd ZFS_DELEG_PERM_RECEIVE, cr)) != 0) 998185029Spjd return (error); 999185029Spjd 1000185029Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1001185029Spjd ZFS_DELEG_PERM_MOUNT, cr)) != 0) 1002185029Spjd return (error); 1003185029Spjd 1004185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1005185029Spjd ZFS_DELEG_PERM_CREATE, cr)); 1006168404Spjd} 1007168404Spjd 1008185029Spjdint 1009185029Spjdzfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) 1010185029Spjd{ 1011219089Spjd return (zfs_secpolicy_write_perms(name, 1012219089Spjd ZFS_DELEG_PERM_SNAPSHOT, cr)); 1013185029Spjd} 1014185029Spjd 1015248571Smm/* 1016248571Smm * Check for permission to create each snapshot in the nvlist. 1017248571Smm */ 1018248571Smm/* ARGSUSED */ 1019185029Spjdstatic int 1020248571Smmzfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1021185029Spjd{ 1022248571Smm nvlist_t *snaps; 1023248571Smm int error; 1024248571Smm nvpair_t *pair; 1025185029Spjd 1026248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 1027249195Smm return (SET_ERROR(EINVAL)); 1028248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 1029248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 1030248571Smm char *name = nvpair_name(pair); 1031248571Smm char *atp = strchr(name, '@'); 1032248571Smm 1033248571Smm if (atp == NULL) { 1034249195Smm error = SET_ERROR(EINVAL); 1035248571Smm break; 1036248571Smm } 1037248571Smm *atp = '\0'; 1038248571Smm error = zfs_secpolicy_snapshot_perms(name, cr); 1039248571Smm *atp = '@'; 1040248571Smm if (error != 0) 1041248571Smm break; 1042248571Smm } 1043248571Smm return (error); 1044185029Spjd} 1045185029Spjd 1046248571Smm/* ARGSUSED */ 1047185029Spjdstatic int 1048248571Smmzfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1049185029Spjd{ 1050248571Smm /* 1051248571Smm * Even root must have a proper TSD so that we know what pool 1052248571Smm * to log to. 1053248571Smm */ 1054248571Smm if (tsd_get(zfs_allow_log_key) == NULL) 1055249195Smm return (SET_ERROR(EPERM)); 1056248571Smm return (0); 1057248571Smm} 1058248571Smm 1059248571Smmstatic int 1060248571Smmzfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1061248571Smm{ 1062219089Spjd char parentname[MAXNAMELEN]; 1063219089Spjd int error; 1064248571Smm char *origin; 1065185029Spjd 1066185029Spjd if ((error = zfs_get_parent(zc->zc_name, parentname, 1067185029Spjd sizeof (parentname))) != 0) 1068185029Spjd return (error); 1069185029Spjd 1070248571Smm if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && 1071248571Smm (error = zfs_secpolicy_write_perms(origin, 1072248571Smm ZFS_DELEG_PERM_CLONE, cr)) != 0) 1073248571Smm return (error); 1074185029Spjd 1075185029Spjd if ((error = zfs_secpolicy_write_perms(parentname, 1076185029Spjd ZFS_DELEG_PERM_CREATE, cr)) != 0) 1077185029Spjd return (error); 1078185029Spjd 1079248571Smm return (zfs_secpolicy_write_perms(parentname, 1080248571Smm ZFS_DELEG_PERM_MOUNT, cr)); 1081185029Spjd} 1082185029Spjd 1083168404Spjd/* 1084168404Spjd * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires 1085168404Spjd * SYS_CONFIG privilege, which is not available in a local zone. 1086168404Spjd */ 1087168404Spjd/* ARGSUSED */ 1088168404Spjdstatic int 1089248571Smmzfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1090168404Spjd{ 1091168404Spjd if (secpolicy_sys_config(cr, B_FALSE) != 0) 1092249195Smm return (SET_ERROR(EPERM)); 1093168404Spjd 1094168404Spjd return (0); 1095168404Spjd} 1096168404Spjd 1097168404Spjd/* 1098219089Spjd * Policy for object to name lookups. 1099185029Spjd */ 1100219089Spjd/* ARGSUSED */ 1101185029Spjdstatic int 1102248571Smmzfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1103185029Spjd{ 1104219089Spjd int error; 1105185029Spjd 1106219089Spjd if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) 1107219089Spjd return (0); 1108219089Spjd 1109219089Spjd error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); 1110219089Spjd return (error); 1111185029Spjd} 1112185029Spjd 1113185029Spjd/* 1114168404Spjd * Policy for fault injection. Requires all privileges. 1115168404Spjd */ 1116168404Spjd/* ARGSUSED */ 1117168404Spjdstatic int 1118248571Smmzfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1119168404Spjd{ 1120168404Spjd return (secpolicy_zinject(cr)); 1121168404Spjd} 1122168404Spjd 1123248571Smm/* ARGSUSED */ 1124185029Spjdstatic int 1125248571Smmzfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1126185029Spjd{ 1127185029Spjd zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); 1128185029Spjd 1129185029Spjd if (prop == ZPROP_INVAL) { 1130185029Spjd if (!zfs_prop_user(zc->zc_value)) 1131249195Smm return (SET_ERROR(EINVAL)); 1132185029Spjd return (zfs_secpolicy_write_perms(zc->zc_name, 1133185029Spjd ZFS_DELEG_PERM_USERPROP, cr)); 1134185029Spjd } else { 1135219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, prop, 1136219089Spjd NULL, cr)); 1137185029Spjd } 1138185029Spjd} 1139185029Spjd 1140168404Spjdstatic int 1141248571Smmzfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1142209962Smm{ 1143248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1144209962Smm if (err) 1145209962Smm return (err); 1146209962Smm 1147209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1148249195Smm return (SET_ERROR(EINVAL)); 1149209962Smm 1150209962Smm if (zc->zc_value[0] == 0) { 1151209962Smm /* 1152209962Smm * They are asking about a posix uid/gid. If it's 1153209962Smm * themself, allow it. 1154209962Smm */ 1155209962Smm if (zc->zc_objset_type == ZFS_PROP_USERUSED || 1156209962Smm zc->zc_objset_type == ZFS_PROP_USERQUOTA) { 1157209962Smm if (zc->zc_guid == crgetuid(cr)) 1158209962Smm return (0); 1159209962Smm } else { 1160209962Smm if (groupmember(zc->zc_guid, cr)) 1161209962Smm return (0); 1162209962Smm } 1163209962Smm } 1164209962Smm 1165209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1166209962Smm userquota_perms[zc->zc_objset_type], cr)); 1167209962Smm} 1168209962Smm 1169209962Smmstatic int 1170248571Smmzfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1171209962Smm{ 1172248571Smm int err = zfs_secpolicy_read(zc, innvl, cr); 1173209962Smm if (err) 1174209962Smm return (err); 1175209962Smm 1176209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 1177249195Smm return (SET_ERROR(EINVAL)); 1178209962Smm 1179209962Smm return (zfs_secpolicy_write_perms(zc->zc_name, 1180209962Smm userquota_perms[zc->zc_objset_type], cr)); 1181209962Smm} 1182209962Smm 1183248571Smm/* ARGSUSED */ 1184209962Smmstatic int 1185248571Smmzfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1186209962Smm{ 1187219089Spjd return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, 1188219089Spjd NULL, cr)); 1189209962Smm} 1190209962Smm 1191248571Smm/* ARGSUSED */ 1192219089Spjdstatic int 1193248571Smmzfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1194219089Spjd{ 1195248571Smm nvpair_t *pair; 1196248571Smm nvlist_t *holds; 1197248571Smm int error; 1198248571Smm 1199248571Smm error = nvlist_lookup_nvlist(innvl, "holds", &holds); 1200248571Smm if (error != 0) 1201249195Smm return (SET_ERROR(EINVAL)); 1202248571Smm 1203248571Smm for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; 1204248571Smm pair = nvlist_next_nvpair(holds, pair)) { 1205248571Smm char fsname[MAXNAMELEN]; 1206248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1207248571Smm if (error != 0) 1208248571Smm return (error); 1209248571Smm error = zfs_secpolicy_write_perms(fsname, 1210248571Smm ZFS_DELEG_PERM_HOLD, cr); 1211248571Smm if (error != 0) 1212248571Smm return (error); 1213248571Smm } 1214248571Smm return (0); 1215219089Spjd} 1216219089Spjd 1217248571Smm/* ARGSUSED */ 1218219089Spjdstatic int 1219248571Smmzfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1220219089Spjd{ 1221248571Smm nvpair_t *pair; 1222248571Smm int error; 1223248571Smm 1224248571Smm for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; 1225248571Smm pair = nvlist_next_nvpair(innvl, pair)) { 1226248571Smm char fsname[MAXNAMELEN]; 1227248571Smm error = dmu_fsname(nvpair_name(pair), fsname); 1228248571Smm if (error != 0) 1229248571Smm return (error); 1230248571Smm error = zfs_secpolicy_write_perms(fsname, 1231248571Smm ZFS_DELEG_PERM_RELEASE, cr); 1232248571Smm if (error != 0) 1233248571Smm return (error); 1234248571Smm } 1235248571Smm return (0); 1236219089Spjd} 1237219089Spjd 1238168404Spjd/* 1239219089Spjd * Policy for allowing temporary snapshots to be taken or released 1240219089Spjd */ 1241219089Spjdstatic int 1242248571Smmzfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) 1243219089Spjd{ 1244219089Spjd /* 1245219089Spjd * A temporary snapshot is the same as a snapshot, 1246219089Spjd * hold, destroy and release all rolled into one. 1247219089Spjd * Delegated diff alone is sufficient that we allow this. 1248219089Spjd */ 1249219089Spjd int error; 1250219089Spjd 1251219089Spjd if ((error = zfs_secpolicy_write_perms(zc->zc_name, 1252219089Spjd ZFS_DELEG_PERM_DIFF, cr)) == 0) 1253219089Spjd return (0); 1254219089Spjd 1255248571Smm error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); 1256248571Smm if (error == 0) 1257248571Smm error = zfs_secpolicy_hold(zc, innvl, cr); 1258248571Smm if (error == 0) 1259248571Smm error = zfs_secpolicy_release(zc, innvl, cr); 1260248571Smm if (error == 0) 1261248571Smm error = zfs_secpolicy_destroy(zc, innvl, cr); 1262219089Spjd return (error); 1263219089Spjd} 1264219089Spjd 1265219089Spjd/* 1266168404Spjd * Returns the nvlist as specified by the user in the zfs_cmd_t. 1267168404Spjd */ 1268168404Spjdstatic int 1269219089Spjdget_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) 1270168404Spjd{ 1271168404Spjd char *packed; 1272168404Spjd int error; 1273185029Spjd nvlist_t *list = NULL; 1274168404Spjd 1275168404Spjd /* 1276168404Spjd * Read in and unpack the user-supplied nvlist. 1277168404Spjd */ 1278185029Spjd if (size == 0) 1279249195Smm return (SET_ERROR(EINVAL)); 1280168404Spjd 1281168404Spjd packed = kmem_alloc(size, KM_SLEEP); 1282168404Spjd 1283219089Spjd if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, 1284219089Spjd iflag)) != 0) { 1285168404Spjd kmem_free(packed, size); 1286168404Spjd return (error); 1287168404Spjd } 1288168404Spjd 1289185029Spjd if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { 1290168404Spjd kmem_free(packed, size); 1291168404Spjd return (error); 1292168404Spjd } 1293168404Spjd 1294168404Spjd kmem_free(packed, size); 1295168404Spjd 1296185029Spjd *nvp = list; 1297168404Spjd return (0); 1298168404Spjd} 1299168404Spjd 1300248571Smm/* 1301248571Smm * Reduce the size of this nvlist until it can be serialized in 'max' bytes. 1302248571Smm * Entries will be removed from the end of the nvlist, and one int32 entry 1303248571Smm * named "N_MORE_ERRORS" will be added indicating how many entries were 1304248571Smm * removed. 1305248571Smm */ 1306168404Spjdstatic int 1307248571Smmnvlist_smush(nvlist_t *errors, size_t max) 1308219089Spjd{ 1309219089Spjd size_t size; 1310219089Spjd 1311248571Smm size = fnvlist_size(errors); 1312219089Spjd 1313248571Smm if (size > max) { 1314219089Spjd nvpair_t *more_errors; 1315219089Spjd int n = 0; 1316219089Spjd 1317248571Smm if (max < 1024) 1318249195Smm return (SET_ERROR(ENOMEM)); 1319219089Spjd 1320248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); 1321248571Smm more_errors = nvlist_prev_nvpair(errors, NULL); 1322219089Spjd 1323219089Spjd do { 1324248571Smm nvpair_t *pair = nvlist_prev_nvpair(errors, 1325219089Spjd more_errors); 1326248571Smm fnvlist_remove_nvpair(errors, pair); 1327219089Spjd n++; 1328248571Smm size = fnvlist_size(errors); 1329248571Smm } while (size > max); 1330219089Spjd 1331248571Smm fnvlist_remove_nvpair(errors, more_errors); 1332248571Smm fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); 1333248571Smm ASSERT3U(fnvlist_size(errors), <=, max); 1334219089Spjd } 1335219089Spjd 1336219089Spjd return (0); 1337219089Spjd} 1338219089Spjd 1339219089Spjdstatic int 1340168404Spjdput_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) 1341168404Spjd{ 1342168404Spjd char *packed = NULL; 1343219089Spjd int error = 0; 1344168404Spjd size_t size; 1345168404Spjd 1346248571Smm size = fnvlist_size(nvl); 1347168404Spjd 1348168404Spjd if (size > zc->zc_nvlist_dst_size) { 1349168404Spjd /* 1350168404Spjd * Solaris returns ENOMEM here, because even if an error is 1351168404Spjd * returned from an ioctl(2), new zc_nvlist_dst_size will be 1352168404Spjd * passed to the userland. This is not the case for FreeBSD. 1353168404Spjd * We need to return 0, so the kernel will copy the 1354168404Spjd * zc_nvlist_dst_size back and the userland can discover that a 1355168404Spjd * bigger buffer is needed. 1356168404Spjd */ 1357168404Spjd error = 0; 1358168404Spjd } else { 1359248571Smm packed = fnvlist_pack(nvl, &size); 1360219089Spjd if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, 1361219089Spjd size, zc->zc_iflags) != 0) 1362249195Smm error = SET_ERROR(EFAULT); 1363248571Smm fnvlist_pack_free(packed, size); 1364168404Spjd } 1365168404Spjd 1366168404Spjd zc->zc_nvlist_dst_size = size; 1367248571Smm zc->zc_nvlist_dst_filled = B_TRUE; 1368168404Spjd return (error); 1369168404Spjd} 1370168404Spjd 1371168404Spjdstatic int 1372219089Spjdgetzfsvfs(const char *dsname, zfsvfs_t **zfvp) 1373209962Smm{ 1374209962Smm objset_t *os; 1375209962Smm int error; 1376209962Smm 1377219089Spjd error = dmu_objset_hold(dsname, FTAG, &os); 1378248571Smm if (error != 0) 1379209962Smm return (error); 1380219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1381219089Spjd dmu_objset_rele(os, FTAG); 1382249195Smm return (SET_ERROR(EINVAL)); 1383219089Spjd } 1384209962Smm 1385219089Spjd mutex_enter(&os->os_user_ptr_lock); 1386219089Spjd *zfvp = dmu_objset_get_user(os); 1387219089Spjd if (*zfvp) { 1388219089Spjd VFS_HOLD((*zfvp)->z_vfs); 1389209962Smm } else { 1390249195Smm error = SET_ERROR(ESRCH); 1391209962Smm } 1392219089Spjd mutex_exit(&os->os_user_ptr_lock); 1393219089Spjd dmu_objset_rele(os, FTAG); 1394209962Smm return (error); 1395209962Smm} 1396209962Smm 1397209962Smm/* 1398209962Smm * Find a zfsvfs_t for a mounted filesystem, or create our own, in which 1399209962Smm * case its z_vfs will be NULL, and it will be opened as the owner. 1400236884Smm * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, 1401236884Smm * which prevents all vnode ops from running. 1402209962Smm */ 1403209962Smmstatic int 1404219089Spjdzfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) 1405209962Smm{ 1406209962Smm int error = 0; 1407209962Smm 1408219089Spjd if (getzfsvfs(name, zfvp) != 0) 1409219089Spjd error = zfsvfs_create(name, zfvp); 1410209962Smm if (error == 0) { 1411219089Spjd rrw_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : 1412219089Spjd RW_READER, tag); 1413219089Spjd if ((*zfvp)->z_unmounted) { 1414209962Smm /* 1415209962Smm * XXX we could probably try again, since the unmounting 1416209962Smm * thread should be just about to disassociate the 1417209962Smm * objset from the zfsvfs. 1418209962Smm */ 1419219089Spjd rrw_exit(&(*zfvp)->z_teardown_lock, tag); 1420249195Smm return (SET_ERROR(EBUSY)); 1421209962Smm } 1422209962Smm } 1423209962Smm return (error); 1424209962Smm} 1425209962Smm 1426209962Smmstatic void 1427209962Smmzfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) 1428209962Smm{ 1429209962Smm rrw_exit(&zfsvfs->z_teardown_lock, tag); 1430209962Smm 1431209962Smm if (zfsvfs->z_vfs) { 1432209962Smm VFS_RELE(zfsvfs->z_vfs); 1433209962Smm } else { 1434219089Spjd dmu_objset_disown(zfsvfs->z_os, zfsvfs); 1435209962Smm zfsvfs_free(zfsvfs); 1436209962Smm } 1437209962Smm} 1438209962Smm 1439209962Smmstatic int 1440168404Spjdzfs_ioc_pool_create(zfs_cmd_t *zc) 1441168404Spjd{ 1442168404Spjd int error; 1443185029Spjd nvlist_t *config, *props = NULL; 1444185029Spjd nvlist_t *rootprops = NULL; 1445185029Spjd nvlist_t *zplprops = NULL; 1446168404Spjd 1447185029Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1448219089Spjd zc->zc_iflags, &config)) 1449168404Spjd return (error); 1450168404Spjd 1451185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1452219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1453219089Spjd zc->zc_iflags, &props))) { 1454185029Spjd nvlist_free(config); 1455185029Spjd return (error); 1456185029Spjd } 1457168404Spjd 1458185029Spjd if (props) { 1459185029Spjd nvlist_t *nvl = NULL; 1460185029Spjd uint64_t version = SPA_VERSION; 1461185029Spjd 1462185029Spjd (void) nvlist_lookup_uint64(props, 1463185029Spjd zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); 1464236884Smm if (!SPA_VERSION_IS_SUPPORTED(version)) { 1465249195Smm error = SET_ERROR(EINVAL); 1466185029Spjd goto pool_props_bad; 1467185029Spjd } 1468185029Spjd (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); 1469185029Spjd if (nvl) { 1470185029Spjd error = nvlist_dup(nvl, &rootprops, KM_SLEEP); 1471185029Spjd if (error != 0) { 1472185029Spjd nvlist_free(config); 1473185029Spjd nvlist_free(props); 1474185029Spjd return (error); 1475185029Spjd } 1476185029Spjd (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); 1477185029Spjd } 1478185029Spjd VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1479185029Spjd error = zfs_fill_zplprops_root(version, rootprops, 1480185029Spjd zplprops, NULL); 1481248571Smm if (error != 0) 1482185029Spjd goto pool_props_bad; 1483185029Spjd } 1484185029Spjd 1485248571Smm error = spa_create(zc->zc_name, config, props, zplprops); 1486185029Spjd 1487185029Spjd /* 1488185029Spjd * Set the remaining root properties 1489185029Spjd */ 1490219089Spjd if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, 1491219089Spjd ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) 1492185029Spjd (void) spa_destroy(zc->zc_name); 1493185029Spjd 1494185029Spjdpool_props_bad: 1495185029Spjd nvlist_free(rootprops); 1496185029Spjd nvlist_free(zplprops); 1497168404Spjd nvlist_free(config); 1498185029Spjd nvlist_free(props); 1499168404Spjd 1500168404Spjd return (error); 1501168404Spjd} 1502168404Spjd 1503168404Spjdstatic int 1504168404Spjdzfs_ioc_pool_destroy(zfs_cmd_t *zc) 1505168404Spjd{ 1506185029Spjd int error; 1507185029Spjd zfs_log_history(zc); 1508185029Spjd error = spa_destroy(zc->zc_name); 1509219089Spjd if (error == 0) 1510219089Spjd zvol_remove_minors(zc->zc_name); 1511185029Spjd return (error); 1512168404Spjd} 1513168404Spjd 1514168404Spjdstatic int 1515168404Spjdzfs_ioc_pool_import(zfs_cmd_t *zc) 1516168404Spjd{ 1517185029Spjd nvlist_t *config, *props = NULL; 1518168404Spjd uint64_t guid; 1519219089Spjd int error; 1520168404Spjd 1521185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1522219089Spjd zc->zc_iflags, &config)) != 0) 1523168404Spjd return (error); 1524168404Spjd 1525185029Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1526219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1527219089Spjd zc->zc_iflags, &props))) { 1528185029Spjd nvlist_free(config); 1529185029Spjd return (error); 1530185029Spjd } 1531185029Spjd 1532168404Spjd if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || 1533168404Spjd guid != zc->zc_guid) 1534249195Smm error = SET_ERROR(EINVAL); 1535168404Spjd else 1536219089Spjd error = spa_import(zc->zc_name, config, props, zc->zc_cookie); 1537168404Spjd 1538219089Spjd if (zc->zc_nvlist_dst != 0) { 1539219089Spjd int err; 1540219089Spjd 1541219089Spjd if ((err = put_nvlist(zc, config)) != 0) 1542219089Spjd error = err; 1543219089Spjd } 1544219089Spjd 1545168404Spjd nvlist_free(config); 1546168404Spjd 1547185029Spjd if (props) 1548185029Spjd nvlist_free(props); 1549185029Spjd 1550168404Spjd return (error); 1551168404Spjd} 1552168404Spjd 1553168404Spjdstatic int 1554168404Spjdzfs_ioc_pool_export(zfs_cmd_t *zc) 1555168404Spjd{ 1556185029Spjd int error; 1557185029Spjd boolean_t force = (boolean_t)zc->zc_cookie; 1558207670Smm boolean_t hardforce = (boolean_t)zc->zc_guid; 1559185029Spjd 1560185029Spjd zfs_log_history(zc); 1561207670Smm error = spa_export(zc->zc_name, NULL, force, hardforce); 1562219089Spjd if (error == 0) 1563219089Spjd zvol_remove_minors(zc->zc_name); 1564185029Spjd return (error); 1565168404Spjd} 1566168404Spjd 1567168404Spjdstatic int 1568168404Spjdzfs_ioc_pool_configs(zfs_cmd_t *zc) 1569168404Spjd{ 1570168404Spjd nvlist_t *configs; 1571168404Spjd int error; 1572168404Spjd 1573168404Spjd if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) 1574249195Smm return (SET_ERROR(EEXIST)); 1575168404Spjd 1576168404Spjd error = put_nvlist(zc, configs); 1577168404Spjd 1578168404Spjd nvlist_free(configs); 1579168404Spjd 1580168404Spjd return (error); 1581168404Spjd} 1582168404Spjd 1583236884Smm/* 1584236884Smm * inputs: 1585236884Smm * zc_name name of the pool 1586236884Smm * 1587236884Smm * outputs: 1588236884Smm * zc_cookie real errno 1589236884Smm * zc_nvlist_dst config nvlist 1590236884Smm * zc_nvlist_dst_size size of config nvlist 1591236884Smm */ 1592168404Spjdstatic int 1593168404Spjdzfs_ioc_pool_stats(zfs_cmd_t *zc) 1594168404Spjd{ 1595168404Spjd nvlist_t *config; 1596168404Spjd int error; 1597168404Spjd int ret = 0; 1598168404Spjd 1599168404Spjd error = spa_get_stats(zc->zc_name, &config, zc->zc_value, 1600168404Spjd sizeof (zc->zc_value)); 1601168404Spjd 1602168404Spjd if (config != NULL) { 1603168404Spjd ret = put_nvlist(zc, config); 1604168404Spjd nvlist_free(config); 1605168404Spjd 1606168404Spjd /* 1607168404Spjd * The config may be present even if 'error' is non-zero. 1608168404Spjd * In this case we return success, and preserve the real errno 1609168404Spjd * in 'zc_cookie'. 1610168404Spjd */ 1611168404Spjd zc->zc_cookie = error; 1612168404Spjd } else { 1613168404Spjd ret = error; 1614168404Spjd } 1615168404Spjd 1616168404Spjd return (ret); 1617168404Spjd} 1618168404Spjd 1619168404Spjd/* 1620168404Spjd * Try to import the given pool, returning pool stats as appropriate so that 1621168404Spjd * user land knows which devices are available and overall pool health. 1622168404Spjd */ 1623168404Spjdstatic int 1624168404Spjdzfs_ioc_pool_tryimport(zfs_cmd_t *zc) 1625168404Spjd{ 1626168404Spjd nvlist_t *tryconfig, *config; 1627168404Spjd int error; 1628168404Spjd 1629185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1630219089Spjd zc->zc_iflags, &tryconfig)) != 0) 1631168404Spjd return (error); 1632168404Spjd 1633168404Spjd config = spa_tryimport(tryconfig); 1634168404Spjd 1635168404Spjd nvlist_free(tryconfig); 1636168404Spjd 1637168404Spjd if (config == NULL) 1638249195Smm return (SET_ERROR(EINVAL)); 1639168404Spjd 1640168404Spjd error = put_nvlist(zc, config); 1641168404Spjd nvlist_free(config); 1642168404Spjd 1643168404Spjd return (error); 1644168404Spjd} 1645168404Spjd 1646219089Spjd/* 1647219089Spjd * inputs: 1648219089Spjd * zc_name name of the pool 1649219089Spjd * zc_cookie scan func (pool_scan_func_t) 1650219089Spjd */ 1651168404Spjdstatic int 1652219089Spjdzfs_ioc_pool_scan(zfs_cmd_t *zc) 1653168404Spjd{ 1654168404Spjd spa_t *spa; 1655168404Spjd int error; 1656168404Spjd 1657168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1658168404Spjd return (error); 1659168404Spjd 1660219089Spjd if (zc->zc_cookie == POOL_SCAN_NONE) 1661219089Spjd error = spa_scan_stop(spa); 1662219089Spjd else 1663219089Spjd error = spa_scan(spa, zc->zc_cookie); 1664168404Spjd 1665168404Spjd spa_close(spa, FTAG); 1666168404Spjd 1667168404Spjd return (error); 1668168404Spjd} 1669168404Spjd 1670168404Spjdstatic int 1671168404Spjdzfs_ioc_pool_freeze(zfs_cmd_t *zc) 1672168404Spjd{ 1673168404Spjd spa_t *spa; 1674168404Spjd int error; 1675168404Spjd 1676168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1677168404Spjd if (error == 0) { 1678168404Spjd spa_freeze(spa); 1679168404Spjd spa_close(spa, FTAG); 1680168404Spjd } 1681168404Spjd return (error); 1682168404Spjd} 1683168404Spjd 1684168404Spjdstatic int 1685168404Spjdzfs_ioc_pool_upgrade(zfs_cmd_t *zc) 1686168404Spjd{ 1687168404Spjd spa_t *spa; 1688168404Spjd int error; 1689168404Spjd 1690168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1691168404Spjd return (error); 1692168404Spjd 1693236884Smm if (zc->zc_cookie < spa_version(spa) || 1694236884Smm !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { 1695185029Spjd spa_close(spa, FTAG); 1696249195Smm return (SET_ERROR(EINVAL)); 1697185029Spjd } 1698168404Spjd 1699185029Spjd spa_upgrade(spa, zc->zc_cookie); 1700168404Spjd spa_close(spa, FTAG); 1701168404Spjd 1702168404Spjd return (error); 1703168404Spjd} 1704168404Spjd 1705168404Spjdstatic int 1706168404Spjdzfs_ioc_pool_get_history(zfs_cmd_t *zc) 1707168404Spjd{ 1708168404Spjd spa_t *spa; 1709168404Spjd char *hist_buf; 1710168404Spjd uint64_t size; 1711168404Spjd int error; 1712168404Spjd 1713168404Spjd if ((size = zc->zc_history_len) == 0) 1714249195Smm return (SET_ERROR(EINVAL)); 1715168404Spjd 1716168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1717168404Spjd return (error); 1718168404Spjd 1719185029Spjd if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 1720168404Spjd spa_close(spa, FTAG); 1721249195Smm return (SET_ERROR(ENOTSUP)); 1722168404Spjd } 1723168404Spjd 1724168404Spjd hist_buf = kmem_alloc(size, KM_SLEEP); 1725168404Spjd if ((error = spa_history_get(spa, &zc->zc_history_offset, 1726168404Spjd &zc->zc_history_len, hist_buf)) == 0) { 1727219089Spjd error = ddi_copyout(hist_buf, 1728219089Spjd (void *)(uintptr_t)zc->zc_history, 1729219089Spjd zc->zc_history_len, zc->zc_iflags); 1730168404Spjd } 1731168404Spjd 1732168404Spjd spa_close(spa, FTAG); 1733168404Spjd kmem_free(hist_buf, size); 1734168404Spjd return (error); 1735168404Spjd} 1736168404Spjd 1737168404Spjdstatic int 1738228103Smmzfs_ioc_pool_reguid(zfs_cmd_t *zc) 1739228103Smm{ 1740228103Smm spa_t *spa; 1741228103Smm int error; 1742228103Smm 1743228103Smm error = spa_open(zc->zc_name, &spa, FTAG); 1744228103Smm if (error == 0) { 1745228103Smm error = spa_change_guid(spa); 1746228103Smm spa_close(spa, FTAG); 1747228103Smm } 1748228103Smm return (error); 1749228103Smm} 1750228103Smm 1751228103Smmstatic int 1752168404Spjdzfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) 1753168404Spjd{ 1754248571Smm return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); 1755168404Spjd} 1756168404Spjd 1757219089Spjd/* 1758219089Spjd * inputs: 1759219089Spjd * zc_name name of filesystem 1760219089Spjd * zc_obj object to find 1761219089Spjd * 1762219089Spjd * outputs: 1763219089Spjd * zc_value name of object 1764219089Spjd */ 1765168404Spjdstatic int 1766168404Spjdzfs_ioc_obj_to_path(zfs_cmd_t *zc) 1767168404Spjd{ 1768219089Spjd objset_t *os; 1769168404Spjd int error; 1770168404Spjd 1771219089Spjd /* XXX reading from objset not owned */ 1772219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1773168404Spjd return (error); 1774219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1775219089Spjd dmu_objset_rele(os, FTAG); 1776249195Smm return (SET_ERROR(EINVAL)); 1777219089Spjd } 1778219089Spjd error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, 1779168404Spjd sizeof (zc->zc_value)); 1780219089Spjd dmu_objset_rele(os, FTAG); 1781168404Spjd 1782168404Spjd return (error); 1783168404Spjd} 1784168404Spjd 1785219089Spjd/* 1786219089Spjd * inputs: 1787219089Spjd * zc_name name of filesystem 1788219089Spjd * zc_obj object to find 1789219089Spjd * 1790219089Spjd * outputs: 1791219089Spjd * zc_stat stats on object 1792219089Spjd * zc_value path to object 1793219089Spjd */ 1794168404Spjdstatic int 1795219089Spjdzfs_ioc_obj_to_stats(zfs_cmd_t *zc) 1796219089Spjd{ 1797219089Spjd objset_t *os; 1798219089Spjd int error; 1799219089Spjd 1800219089Spjd /* XXX reading from objset not owned */ 1801219089Spjd if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) 1802219089Spjd return (error); 1803219089Spjd if (dmu_objset_type(os) != DMU_OST_ZFS) { 1804219089Spjd dmu_objset_rele(os, FTAG); 1805249195Smm return (SET_ERROR(EINVAL)); 1806219089Spjd } 1807219089Spjd error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, 1808219089Spjd sizeof (zc->zc_value)); 1809219089Spjd dmu_objset_rele(os, FTAG); 1810219089Spjd 1811219089Spjd return (error); 1812219089Spjd} 1813219089Spjd 1814219089Spjdstatic int 1815168404Spjdzfs_ioc_vdev_add(zfs_cmd_t *zc) 1816168404Spjd{ 1817168404Spjd spa_t *spa; 1818168404Spjd int error; 1819185029Spjd nvlist_t *config, **l2cache, **spares; 1820185029Spjd uint_t nl2cache = 0, nspares = 0; 1821168404Spjd 1822168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1823168404Spjd if (error != 0) 1824168404Spjd return (error); 1825168404Spjd 1826185029Spjd error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1827219089Spjd zc->zc_iflags, &config); 1828185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, 1829185029Spjd &l2cache, &nl2cache); 1830185029Spjd 1831185029Spjd (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, 1832185029Spjd &spares, &nspares); 1833185029Spjd 1834168404Spjd /* 1835168404Spjd * A root pool with concatenated devices is not supported. 1836185029Spjd * Thus, can not add a device to a root pool. 1837185029Spjd * 1838185029Spjd * Intent log device can not be added to a rootpool because 1839185029Spjd * during mountroot, zil is replayed, a seperated log device 1840185029Spjd * can not be accessed during the mountroot time. 1841185029Spjd * 1842185029Spjd * l2cache and spare devices are ok to be added to a rootpool. 1843168404Spjd */ 1844219089Spjd if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { 1845219089Spjd nvlist_free(config); 1846168404Spjd spa_close(spa, FTAG); 1847249195Smm return (SET_ERROR(EDOM)); 1848168404Spjd } 1849168404Spjd 1850185029Spjd if (error == 0) { 1851168404Spjd error = spa_vdev_add(spa, config); 1852168404Spjd nvlist_free(config); 1853168404Spjd } 1854168404Spjd spa_close(spa, FTAG); 1855168404Spjd return (error); 1856168404Spjd} 1857168404Spjd 1858219089Spjd/* 1859219089Spjd * inputs: 1860219089Spjd * zc_name name of the pool 1861219089Spjd * zc_nvlist_conf nvlist of devices to remove 1862219089Spjd * zc_cookie to stop the remove? 1863219089Spjd */ 1864168404Spjdstatic int 1865168404Spjdzfs_ioc_vdev_remove(zfs_cmd_t *zc) 1866168404Spjd{ 1867168404Spjd spa_t *spa; 1868168404Spjd int error; 1869168404Spjd 1870168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 1871168404Spjd if (error != 0) 1872168404Spjd return (error); 1873168404Spjd error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); 1874168404Spjd spa_close(spa, FTAG); 1875168404Spjd return (error); 1876168404Spjd} 1877168404Spjd 1878168404Spjdstatic int 1879185029Spjdzfs_ioc_vdev_set_state(zfs_cmd_t *zc) 1880168404Spjd{ 1881168404Spjd spa_t *spa; 1882168404Spjd int error; 1883185029Spjd vdev_state_t newstate = VDEV_STATE_UNKNOWN; 1884168404Spjd 1885168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1886168404Spjd return (error); 1887185029Spjd switch (zc->zc_cookie) { 1888185029Spjd case VDEV_STATE_ONLINE: 1889185029Spjd error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); 1890185029Spjd break; 1891168404Spjd 1892185029Spjd case VDEV_STATE_OFFLINE: 1893185029Spjd error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); 1894185029Spjd break; 1895168404Spjd 1896185029Spjd case VDEV_STATE_FAULTED: 1897219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 1898219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 1899219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 1900219089Spjd 1901219089Spjd error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); 1902185029Spjd break; 1903185029Spjd 1904185029Spjd case VDEV_STATE_DEGRADED: 1905219089Spjd if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && 1906219089Spjd zc->zc_obj != VDEV_AUX_EXTERNAL) 1907219089Spjd zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; 1908219089Spjd 1909219089Spjd error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); 1910185029Spjd break; 1911185029Spjd 1912185029Spjd default: 1913249195Smm error = SET_ERROR(EINVAL); 1914185029Spjd } 1915185029Spjd zc->zc_cookie = newstate; 1916168404Spjd spa_close(spa, FTAG); 1917168404Spjd return (error); 1918168404Spjd} 1919168404Spjd 1920168404Spjdstatic int 1921168404Spjdzfs_ioc_vdev_attach(zfs_cmd_t *zc) 1922168404Spjd{ 1923168404Spjd spa_t *spa; 1924168404Spjd int replacing = zc->zc_cookie; 1925168404Spjd nvlist_t *config; 1926168404Spjd int error; 1927168404Spjd 1928168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1929168404Spjd return (error); 1930168404Spjd 1931185029Spjd if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1932219089Spjd zc->zc_iflags, &config)) == 0) { 1933168404Spjd error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); 1934168404Spjd nvlist_free(config); 1935168404Spjd } 1936168404Spjd 1937168404Spjd spa_close(spa, FTAG); 1938168404Spjd return (error); 1939168404Spjd} 1940168404Spjd 1941168404Spjdstatic int 1942168404Spjdzfs_ioc_vdev_detach(zfs_cmd_t *zc) 1943168404Spjd{ 1944168404Spjd spa_t *spa; 1945168404Spjd int error; 1946168404Spjd 1947168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1948168404Spjd return (error); 1949168404Spjd 1950209962Smm error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); 1951168404Spjd 1952168404Spjd spa_close(spa, FTAG); 1953168404Spjd return (error); 1954168404Spjd} 1955168404Spjd 1956168404Spjdstatic int 1957219089Spjdzfs_ioc_vdev_split(zfs_cmd_t *zc) 1958219089Spjd{ 1959219089Spjd spa_t *spa; 1960219089Spjd nvlist_t *config, *props = NULL; 1961219089Spjd int error; 1962219089Spjd boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); 1963219089Spjd 1964219089Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 1965219089Spjd return (error); 1966219089Spjd 1967219089Spjd if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, 1968219089Spjd zc->zc_iflags, &config)) { 1969219089Spjd spa_close(spa, FTAG); 1970219089Spjd return (error); 1971219089Spjd } 1972219089Spjd 1973219089Spjd if (zc->zc_nvlist_src_size != 0 && (error = 1974219089Spjd get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 1975219089Spjd zc->zc_iflags, &props))) { 1976219089Spjd spa_close(spa, FTAG); 1977219089Spjd nvlist_free(config); 1978219089Spjd return (error); 1979219089Spjd } 1980219089Spjd 1981219089Spjd error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); 1982219089Spjd 1983219089Spjd spa_close(spa, FTAG); 1984219089Spjd 1985219089Spjd nvlist_free(config); 1986219089Spjd nvlist_free(props); 1987219089Spjd 1988219089Spjd return (error); 1989219089Spjd} 1990219089Spjd 1991219089Spjdstatic int 1992168404Spjdzfs_ioc_vdev_setpath(zfs_cmd_t *zc) 1993168404Spjd{ 1994168404Spjd spa_t *spa; 1995168404Spjd char *path = zc->zc_value; 1996168404Spjd uint64_t guid = zc->zc_guid; 1997168404Spjd int error; 1998168404Spjd 1999168404Spjd error = spa_open(zc->zc_name, &spa, FTAG); 2000168404Spjd if (error != 0) 2001168404Spjd return (error); 2002168404Spjd 2003168404Spjd error = spa_vdev_setpath(spa, guid, path); 2004168404Spjd spa_close(spa, FTAG); 2005168404Spjd return (error); 2006168404Spjd} 2007168404Spjd 2008209962Smmstatic int 2009209962Smmzfs_ioc_vdev_setfru(zfs_cmd_t *zc) 2010209962Smm{ 2011209962Smm spa_t *spa; 2012209962Smm char *fru = zc->zc_value; 2013209962Smm uint64_t guid = zc->zc_guid; 2014209962Smm int error; 2015209962Smm 2016209962Smm error = spa_open(zc->zc_name, &spa, FTAG); 2017209962Smm if (error != 0) 2018209962Smm return (error); 2019209962Smm 2020209962Smm error = spa_vdev_setfru(spa, guid, fru); 2021209962Smm spa_close(spa, FTAG); 2022209962Smm return (error); 2023209962Smm} 2024209962Smm 2025219089Spjdstatic int 2026219089Spjdzfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) 2027219089Spjd{ 2028219089Spjd int error = 0; 2029219089Spjd nvlist_t *nv; 2030219089Spjd 2031219089Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2032219089Spjd 2033219089Spjd if (zc->zc_nvlist_dst != 0 && 2034219089Spjd (error = dsl_prop_get_all(os, &nv)) == 0) { 2035219089Spjd dmu_objset_stats(os, nv); 2036219089Spjd /* 2037219089Spjd * NB: zvol_get_stats() will read the objset contents, 2038219089Spjd * which we aren't supposed to do with a 2039219089Spjd * DS_MODE_USER hold, because it could be 2040219089Spjd * inconsistent. So this is a bit of a workaround... 2041219089Spjd * XXX reading with out owning 2042219089Spjd */ 2043228103Smm if (!zc->zc_objset_stats.dds_inconsistent && 2044228103Smm dmu_objset_type(os) == DMU_OST_ZVOL) { 2045228103Smm error = zvol_get_stats(os, nv); 2046228103Smm if (error == EIO) 2047228103Smm return (error); 2048240415Smm VERIFY0(error); 2049219089Spjd } 2050219089Spjd error = put_nvlist(zc, nv); 2051219089Spjd nvlist_free(nv); 2052219089Spjd } 2053219089Spjd 2054219089Spjd return (error); 2055219089Spjd} 2056219089Spjd 2057185029Spjd/* 2058185029Spjd * inputs: 2059185029Spjd * zc_name name of filesystem 2060185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2061185029Spjd * 2062185029Spjd * outputs: 2063185029Spjd * zc_objset_stats stats 2064185029Spjd * zc_nvlist_dst property nvlist 2065185029Spjd * zc_nvlist_dst_size size of property nvlist 2066185029Spjd */ 2067168404Spjdstatic int 2068168404Spjdzfs_ioc_objset_stats(zfs_cmd_t *zc) 2069168404Spjd{ 2070248571Smm objset_t *os; 2071168404Spjd int error; 2072219089Spjd 2073248571Smm error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2074248571Smm if (error == 0) { 2075248571Smm error = zfs_ioc_objset_stats_impl(zc, os); 2076248571Smm dmu_objset_rele(os, FTAG); 2077248571Smm } 2078219089Spjd 2079219089Spjd if (error == ENOMEM) 2080219089Spjd error = 0; 2081219089Spjd return (error); 2082219089Spjd} 2083219089Spjd 2084219089Spjd/* 2085219089Spjd * inputs: 2086219089Spjd * zc_name name of filesystem 2087219089Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2088219089Spjd * 2089219089Spjd * outputs: 2090219089Spjd * zc_nvlist_dst received property nvlist 2091219089Spjd * zc_nvlist_dst_size size of received property nvlist 2092219089Spjd * 2093219089Spjd * Gets received properties (distinct from local properties on or after 2094219089Spjd * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from 2095219089Spjd * local property values. 2096219089Spjd */ 2097219089Spjdstatic int 2098219089Spjdzfs_ioc_objset_recvd_props(zfs_cmd_t *zc) 2099219089Spjd{ 2100248571Smm int error = 0; 2101168404Spjd nvlist_t *nv; 2102168404Spjd 2103219089Spjd /* 2104219089Spjd * Without this check, we would return local property values if the 2105219089Spjd * caller has not already received properties on or after 2106219089Spjd * SPA_VERSION_RECVD_PROPS. 2107219089Spjd */ 2108248571Smm if (!dsl_prop_get_hasrecvd(zc->zc_name)) 2109249195Smm return (SET_ERROR(ENOTSUP)); 2110168404Spjd 2111168404Spjd if (zc->zc_nvlist_dst != 0 && 2112248571Smm (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { 2113168404Spjd error = put_nvlist(zc, nv); 2114168404Spjd nvlist_free(nv); 2115168404Spjd } 2116168404Spjd 2117168404Spjd return (error); 2118168404Spjd} 2119168404Spjd 2120168404Spjdstatic int 2121185029Spjdnvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) 2122185029Spjd{ 2123185029Spjd uint64_t value; 2124185029Spjd int error; 2125185029Spjd 2126185029Spjd /* 2127185029Spjd * zfs_get_zplprop() will either find a value or give us 2128185029Spjd * the default value (if there is one). 2129185029Spjd */ 2130185029Spjd if ((error = zfs_get_zplprop(os, prop, &value)) != 0) 2131185029Spjd return (error); 2132185029Spjd VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); 2133185029Spjd return (0); 2134185029Spjd} 2135185029Spjd 2136185029Spjd/* 2137185029Spjd * inputs: 2138185029Spjd * zc_name name of filesystem 2139185029Spjd * zc_nvlist_dst_size size of buffer for zpl property nvlist 2140185029Spjd * 2141185029Spjd * outputs: 2142185029Spjd * zc_nvlist_dst zpl property nvlist 2143185029Spjd * zc_nvlist_dst_size size of zpl property nvlist 2144185029Spjd */ 2145185029Spjdstatic int 2146185029Spjdzfs_ioc_objset_zplprops(zfs_cmd_t *zc) 2147185029Spjd{ 2148185029Spjd objset_t *os; 2149185029Spjd int err; 2150185029Spjd 2151219089Spjd /* XXX reading without owning */ 2152219089Spjd if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) 2153185029Spjd return (err); 2154185029Spjd 2155185029Spjd dmu_objset_fast_stat(os, &zc->zc_objset_stats); 2156185029Spjd 2157185029Spjd /* 2158185029Spjd * NB: nvl_add_zplprop() will read the objset contents, 2159185029Spjd * which we aren't supposed to do with a DS_MODE_USER 2160185029Spjd * hold, because it could be inconsistent. 2161185029Spjd */ 2162185029Spjd if (zc->zc_nvlist_dst != 0 && 2163185029Spjd !zc->zc_objset_stats.dds_inconsistent && 2164185029Spjd dmu_objset_type(os) == DMU_OST_ZFS) { 2165185029Spjd nvlist_t *nv; 2166185029Spjd 2167185029Spjd VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2168185029Spjd if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && 2169185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && 2170185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && 2171185029Spjd (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) 2172185029Spjd err = put_nvlist(zc, nv); 2173185029Spjd nvlist_free(nv); 2174185029Spjd } else { 2175249195Smm err = SET_ERROR(ENOENT); 2176185029Spjd } 2177219089Spjd dmu_objset_rele(os, FTAG); 2178185029Spjd return (err); 2179185029Spjd} 2180185029Spjd 2181219089Spjdboolean_t 2182209962Smmdataset_name_hidden(const char *name) 2183209962Smm{ 2184209962Smm /* 2185209962Smm * Skip over datasets that are not visible in this zone, 2186209962Smm * internal datasets (which have a $ in their name), and 2187209962Smm * temporary datasets (which have a % in their name). 2188209962Smm */ 2189209962Smm if (strchr(name, '$') != NULL) 2190209962Smm return (B_TRUE); 2191209962Smm if (strchr(name, '%') != NULL) 2192209962Smm return (B_TRUE); 2193209962Smm if (!INGLOBALZONE(curthread) && !zone_dataset_visible(name, NULL)) 2194209962Smm return (B_TRUE); 2195209962Smm return (B_FALSE); 2196209962Smm} 2197209962Smm 2198185029Spjd/* 2199185029Spjd * inputs: 2200185029Spjd * zc_name name of filesystem 2201185029Spjd * zc_cookie zap cursor 2202185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2203185029Spjd * 2204185029Spjd * outputs: 2205185029Spjd * zc_name name of next filesystem 2206209962Smm * zc_cookie zap cursor 2207185029Spjd * zc_objset_stats stats 2208185029Spjd * zc_nvlist_dst property nvlist 2209185029Spjd * zc_nvlist_dst_size size of property nvlist 2210185029Spjd */ 2211185029Spjdstatic int 2212168404Spjdzfs_ioc_dataset_list_next(zfs_cmd_t *zc) 2213168404Spjd{ 2214168404Spjd objset_t *os; 2215168404Spjd int error; 2216168404Spjd char *p; 2217219089Spjd size_t orig_len = strlen(zc->zc_name); 2218168404Spjd 2219219089Spjdtop: 2220219089Spjd if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { 2221168404Spjd if (error == ENOENT) 2222249195Smm error = SET_ERROR(ESRCH); 2223168404Spjd return (error); 2224168404Spjd } 2225168404Spjd 2226168404Spjd p = strrchr(zc->zc_name, '/'); 2227168404Spjd if (p == NULL || p[1] != '\0') 2228168404Spjd (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); 2229168404Spjd p = zc->zc_name + strlen(zc->zc_name); 2230168404Spjd 2231168404Spjd do { 2232168404Spjd error = dmu_dir_list_next(os, 2233168404Spjd sizeof (zc->zc_name) - (p - zc->zc_name), p, 2234168404Spjd NULL, &zc->zc_cookie); 2235168404Spjd if (error == ENOENT) 2236249195Smm error = SET_ERROR(ESRCH); 2237228103Smm } while (error == 0 && dataset_name_hidden(zc->zc_name)); 2238219089Spjd dmu_objset_rele(os, FTAG); 2239168404Spjd 2240219089Spjd /* 2241219089Spjd * If it's an internal dataset (ie. with a '$' in its name), 2242219089Spjd * don't try to get stats for it, otherwise we'll return ENOENT. 2243219089Spjd */ 2244219089Spjd if (error == 0 && strchr(zc->zc_name, '$') == NULL) { 2245168404Spjd error = zfs_ioc_objset_stats(zc); /* fill in the stats */ 2246219089Spjd if (error == ENOENT) { 2247219089Spjd /* We lost a race with destroy, get the next one. */ 2248219089Spjd zc->zc_name[orig_len] = '\0'; 2249219089Spjd goto top; 2250219089Spjd } 2251219089Spjd } 2252168404Spjd return (error); 2253168404Spjd} 2254168404Spjd 2255185029Spjd/* 2256185029Spjd * inputs: 2257185029Spjd * zc_name name of filesystem 2258185029Spjd * zc_cookie zap cursor 2259185029Spjd * zc_nvlist_dst_size size of buffer for property nvlist 2260230438Spjd * zc_simple when set, only name is requested 2261185029Spjd * 2262185029Spjd * outputs: 2263185029Spjd * zc_name name of next snapshot 2264185029Spjd * zc_objset_stats stats 2265185029Spjd * zc_nvlist_dst property nvlist 2266185029Spjd * zc_nvlist_dst_size size of property nvlist 2267185029Spjd */ 2268168404Spjdstatic int 2269168404Spjdzfs_ioc_snapshot_list_next(zfs_cmd_t *zc) 2270168404Spjd{ 2271168404Spjd objset_t *os; 2272168404Spjd int error; 2273168404Spjd 2274219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 2275248571Smm if (error != 0) { 2276185029Spjd return (error == ENOENT ? ESRCH : error); 2277248571Smm } 2278168404Spjd 2279168404Spjd /* 2280168404Spjd * A dataset name of maximum length cannot have any snapshots, 2281168404Spjd * so exit immediately. 2282168404Spjd */ 2283168404Spjd if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { 2284219089Spjd dmu_objset_rele(os, FTAG); 2285249195Smm return (SET_ERROR(ESRCH)); 2286168404Spjd } 2287168404Spjd 2288168404Spjd error = dmu_snapshot_list_next(os, 2289168404Spjd sizeof (zc->zc_name) - strlen(zc->zc_name), 2290219089Spjd zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, 2291219089Spjd NULL); 2292219089Spjd 2293230438Spjd if (error == 0 && !zc->zc_simple) { 2294219089Spjd dsl_dataset_t *ds; 2295219089Spjd dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; 2296219089Spjd 2297219089Spjd error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); 2298248571Smm if (error == 0) { 2299219089Spjd objset_t *ossnap; 2300219089Spjd 2301219089Spjd error = dmu_objset_from_ds(ds, &ossnap); 2302219089Spjd if (error == 0) 2303219089Spjd error = zfs_ioc_objset_stats_impl(zc, ossnap); 2304219089Spjd dsl_dataset_rele(ds, FTAG); 2305219089Spjd } 2306219089Spjd } else if (error == ENOENT) { 2307249195Smm error = SET_ERROR(ESRCH); 2308219089Spjd } 2309168404Spjd 2310219089Spjd dmu_objset_rele(os, FTAG); 2311185029Spjd /* if we failed, undo the @ that we tacked on to zc_name */ 2312248571Smm if (error != 0) 2313185029Spjd *strchr(zc->zc_name, '@') = '\0'; 2314168404Spjd return (error); 2315168404Spjd} 2316168404Spjd 2317219089Spjdstatic int 2318219089Spjdzfs_prop_set_userquota(const char *dsname, nvpair_t *pair) 2319168404Spjd{ 2320219089Spjd const char *propname = nvpair_name(pair); 2321219089Spjd uint64_t *valary; 2322219089Spjd unsigned int vallen; 2323219089Spjd const char *domain; 2324219089Spjd char *dash; 2325219089Spjd zfs_userquota_prop_t type; 2326219089Spjd uint64_t rid; 2327219089Spjd uint64_t quota; 2328219089Spjd zfsvfs_t *zfsvfs; 2329219089Spjd int err; 2330168404Spjd 2331219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2332219089Spjd nvlist_t *attrs; 2333219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2334219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2335219089Spjd &pair) != 0) 2336249195Smm return (SET_ERROR(EINVAL)); 2337219089Spjd } 2338219089Spjd 2339185029Spjd /* 2340219089Spjd * A correctly constructed propname is encoded as 2341219089Spjd * userquota@<rid>-<domain>. 2342185029Spjd */ 2343219089Spjd if ((dash = strchr(propname, '-')) == NULL || 2344219089Spjd nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || 2345219089Spjd vallen != 3) 2346249195Smm return (SET_ERROR(EINVAL)); 2347168404Spjd 2348219089Spjd domain = dash + 1; 2349219089Spjd type = valary[0]; 2350219089Spjd rid = valary[1]; 2351219089Spjd quota = valary[2]; 2352168404Spjd 2353219089Spjd err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); 2354219089Spjd if (err == 0) { 2355219089Spjd err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); 2356219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2357219089Spjd } 2358209962Smm 2359219089Spjd return (err); 2360219089Spjd} 2361168404Spjd 2362219089Spjd/* 2363219089Spjd * If the named property is one that has a special function to set its value, 2364219089Spjd * return 0 on success and a positive error code on failure; otherwise if it is 2365219089Spjd * not one of the special properties handled by this function, return -1. 2366219089Spjd * 2367219089Spjd * XXX: It would be better for callers of the property interface if we handled 2368219089Spjd * these special cases in dsl_prop.c (in the dsl layer). 2369219089Spjd */ 2370219089Spjdstatic int 2371219089Spjdzfs_prop_set_special(const char *dsname, zprop_source_t source, 2372219089Spjd nvpair_t *pair) 2373219089Spjd{ 2374219089Spjd const char *propname = nvpair_name(pair); 2375219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2376219089Spjd uint64_t intval; 2377219089Spjd int err; 2378209962Smm 2379219089Spjd if (prop == ZPROP_INVAL) { 2380219089Spjd if (zfs_prop_userquota(propname)) 2381219089Spjd return (zfs_prop_set_userquota(dsname, pair)); 2382219089Spjd return (-1); 2383219089Spjd } 2384185029Spjd 2385219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2386219089Spjd nvlist_t *attrs; 2387219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 2388219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2389219089Spjd &pair) == 0); 2390219089Spjd } 2391168404Spjd 2392219089Spjd if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) 2393219089Spjd return (-1); 2394185029Spjd 2395219089Spjd VERIFY(0 == nvpair_value_uint64(pair, &intval)); 2396185029Spjd 2397219089Spjd switch (prop) { 2398219089Spjd case ZFS_PROP_QUOTA: 2399219089Spjd err = dsl_dir_set_quota(dsname, source, intval); 2400219089Spjd break; 2401219089Spjd case ZFS_PROP_REFQUOTA: 2402248571Smm err = dsl_dataset_set_refquota(dsname, source, intval); 2403219089Spjd break; 2404219089Spjd case ZFS_PROP_RESERVATION: 2405219089Spjd err = dsl_dir_set_reservation(dsname, source, intval); 2406219089Spjd break; 2407219089Spjd case ZFS_PROP_REFRESERVATION: 2408248571Smm err = dsl_dataset_set_refreservation(dsname, source, intval); 2409219089Spjd break; 2410219089Spjd case ZFS_PROP_VOLSIZE: 2411219089Spjd err = zvol_set_volsize(dsname, ddi_driver_major(zfs_dip), 2412219089Spjd intval); 2413219089Spjd break; 2414219089Spjd case ZFS_PROP_VERSION: 2415219089Spjd { 2416219089Spjd zfsvfs_t *zfsvfs; 2417219089Spjd 2418219089Spjd if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) 2419185029Spjd break; 2420201143Sdelphij 2421219089Spjd err = zfs_set_version(zfsvfs, intval); 2422219089Spjd zfsvfs_rele(zfsvfs, FTAG); 2423168404Spjd 2424219089Spjd if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { 2425219089Spjd zfs_cmd_t *zc; 2426185029Spjd 2427219089Spjd zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); 2428219089Spjd (void) strcpy(zc->zc_name, dsname); 2429219089Spjd (void) zfs_ioc_userspace_upgrade(zc); 2430219089Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 2431185029Spjd } 2432219089Spjd break; 2433219089Spjd } 2434246586Sdelphij case ZFS_PROP_COMPRESSION: 2435246586Sdelphij { 2436246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 2437246586Sdelphij zfeature_info_t *feature = 2438246586Sdelphij &spa_feature_table[SPA_FEATURE_LZ4_COMPRESS]; 2439246586Sdelphij spa_t *spa; 2440185029Spjd 2441246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 2442246586Sdelphij return (err); 2443246586Sdelphij 2444246586Sdelphij /* 2445246586Sdelphij * Setting the LZ4 compression algorithm activates 2446246586Sdelphij * the feature. 2447246586Sdelphij */ 2448246586Sdelphij if (!spa_feature_is_active(spa, feature)) { 2449248571Smm if ((err = zfs_prop_activate_feature(spa, 2450246586Sdelphij feature)) != 0) { 2451246586Sdelphij spa_close(spa, FTAG); 2452246586Sdelphij return (err); 2453246586Sdelphij } 2454246586Sdelphij } 2455246586Sdelphij 2456246586Sdelphij spa_close(spa, FTAG); 2457246586Sdelphij } 2458246586Sdelphij /* 2459246586Sdelphij * We still want the default set action to be performed in the 2460246586Sdelphij * caller, we only performed zfeature settings here. 2461246586Sdelphij */ 2462246586Sdelphij err = -1; 2463246586Sdelphij break; 2464246586Sdelphij } 2465246586Sdelphij 2466219089Spjd default: 2467219089Spjd err = -1; 2468219089Spjd } 2469168404Spjd 2470219089Spjd return (err); 2471219089Spjd} 2472185029Spjd 2473219089Spjd/* 2474219089Spjd * This function is best effort. If it fails to set any of the given properties, 2475248571Smm * it continues to set as many as it can and returns the last error 2476248571Smm * encountered. If the caller provides a non-NULL errlist, it will be filled in 2477248571Smm * with the list of names of all the properties that failed along with the 2478248571Smm * corresponding error numbers. 2479219089Spjd * 2480248571Smm * If every property is set successfully, zero is returned and errlist is not 2481248571Smm * modified. 2482219089Spjd */ 2483219089Spjdint 2484219089Spjdzfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, 2485248571Smm nvlist_t *errlist) 2486219089Spjd{ 2487219089Spjd nvpair_t *pair; 2488219089Spjd nvpair_t *propval; 2489219089Spjd int rv = 0; 2490219089Spjd uint64_t intval; 2491219089Spjd char *strval; 2492248571Smm nvlist_t *genericnvl = fnvlist_alloc(); 2493248571Smm nvlist_t *retrynvl = fnvlist_alloc(); 2494168404Spjd 2495219089Spjdretry: 2496219089Spjd pair = NULL; 2497219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2498219089Spjd const char *propname = nvpair_name(pair); 2499219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2500219089Spjd int err = 0; 2501185029Spjd 2502219089Spjd /* decode the property value */ 2503219089Spjd propval = pair; 2504219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2505219089Spjd nvlist_t *attrs; 2506248571Smm attrs = fnvpair_value_nvlist(pair); 2507219089Spjd if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 2508219089Spjd &propval) != 0) 2509249195Smm err = SET_ERROR(EINVAL); 2510219089Spjd } 2511168404Spjd 2512219089Spjd /* Validate value type */ 2513219089Spjd if (err == 0 && prop == ZPROP_INVAL) { 2514219089Spjd if (zfs_prop_user(propname)) { 2515219089Spjd if (nvpair_type(propval) != DATA_TYPE_STRING) 2516249195Smm err = SET_ERROR(EINVAL); 2517219089Spjd } else if (zfs_prop_userquota(propname)) { 2518219089Spjd if (nvpair_type(propval) != 2519219089Spjd DATA_TYPE_UINT64_ARRAY) 2520249195Smm err = SET_ERROR(EINVAL); 2521228103Smm } else { 2522249195Smm err = SET_ERROR(EINVAL); 2523209962Smm } 2524219089Spjd } else if (err == 0) { 2525219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2526219089Spjd if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) 2527249195Smm err = SET_ERROR(EINVAL); 2528219089Spjd } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { 2529168404Spjd const char *unused; 2530168404Spjd 2531248571Smm intval = fnvpair_value_uint64(propval); 2532168404Spjd 2533168404Spjd switch (zfs_prop_get_type(prop)) { 2534185029Spjd case PROP_TYPE_NUMBER: 2535168404Spjd break; 2536185029Spjd case PROP_TYPE_STRING: 2537249195Smm err = SET_ERROR(EINVAL); 2538219089Spjd break; 2539185029Spjd case PROP_TYPE_INDEX: 2540168404Spjd if (zfs_prop_index_to_string(prop, 2541219089Spjd intval, &unused) != 0) 2542249195Smm err = SET_ERROR(EINVAL); 2543168404Spjd break; 2544168404Spjd default: 2545185029Spjd cmn_err(CE_PANIC, 2546185029Spjd "unknown property type"); 2547168404Spjd } 2548168404Spjd } else { 2549249195Smm err = SET_ERROR(EINVAL); 2550168404Spjd } 2551168404Spjd } 2552219089Spjd 2553219089Spjd /* Validate permissions */ 2554219089Spjd if (err == 0) 2555219089Spjd err = zfs_check_settable(dsname, pair, CRED()); 2556219089Spjd 2557219089Spjd if (err == 0) { 2558219089Spjd err = zfs_prop_set_special(dsname, source, pair); 2559219089Spjd if (err == -1) { 2560219089Spjd /* 2561219089Spjd * For better performance we build up a list of 2562219089Spjd * properties to set in a single transaction. 2563219089Spjd */ 2564219089Spjd err = nvlist_add_nvpair(genericnvl, pair); 2565219089Spjd } else if (err != 0 && nvl != retrynvl) { 2566219089Spjd /* 2567219089Spjd * This may be a spurious error caused by 2568219089Spjd * receiving quota and reservation out of order. 2569219089Spjd * Try again in a second pass. 2570219089Spjd */ 2571219089Spjd err = nvlist_add_nvpair(retrynvl, pair); 2572219089Spjd } 2573219089Spjd } 2574219089Spjd 2575248571Smm if (err != 0) { 2576248571Smm if (errlist != NULL) 2577248571Smm fnvlist_add_int32(errlist, propname, err); 2578248571Smm rv = err; 2579248571Smm } 2580168404Spjd } 2581168404Spjd 2582219089Spjd if (nvl != retrynvl && !nvlist_empty(retrynvl)) { 2583219089Spjd nvl = retrynvl; 2584219089Spjd goto retry; 2585209962Smm } 2586219089Spjd 2587219089Spjd if (!nvlist_empty(genericnvl) && 2588219089Spjd dsl_props_set(dsname, source, genericnvl) != 0) { 2589219089Spjd /* 2590219089Spjd * If this fails, we still want to set as many properties as we 2591219089Spjd * can, so try setting them individually. 2592219089Spjd */ 2593219089Spjd pair = NULL; 2594219089Spjd while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { 2595219089Spjd const char *propname = nvpair_name(pair); 2596219089Spjd int err = 0; 2597219089Spjd 2598219089Spjd propval = pair; 2599219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 2600219089Spjd nvlist_t *attrs; 2601248571Smm attrs = fnvpair_value_nvlist(pair); 2602248571Smm propval = fnvlist_lookup_nvpair(attrs, 2603248571Smm ZPROP_VALUE); 2604219089Spjd } 2605219089Spjd 2606219089Spjd if (nvpair_type(propval) == DATA_TYPE_STRING) { 2607248571Smm strval = fnvpair_value_string(propval); 2608248571Smm err = dsl_prop_set_string(dsname, propname, 2609248571Smm source, strval); 2610219089Spjd } else { 2611248571Smm intval = fnvpair_value_uint64(propval); 2612248571Smm err = dsl_prop_set_int(dsname, propname, source, 2613248571Smm intval); 2614219089Spjd } 2615219089Spjd 2616219089Spjd if (err != 0) { 2617248571Smm if (errlist != NULL) { 2618248571Smm fnvlist_add_int32(errlist, propname, 2619248571Smm err); 2620248571Smm } 2621248571Smm rv = err; 2622219089Spjd } 2623219089Spjd } 2624219089Spjd } 2625209962Smm nvlist_free(genericnvl); 2626219089Spjd nvlist_free(retrynvl); 2627219089Spjd 2628219089Spjd return (rv); 2629209962Smm} 2630209962Smm 2631209962Smm/* 2632209962Smm * Check that all the properties are valid user properties. 2633209962Smm */ 2634209962Smmstatic int 2635248571Smmzfs_check_userprops(const char *fsname, nvlist_t *nvl) 2636209962Smm{ 2637219089Spjd nvpair_t *pair = NULL; 2638209962Smm int error = 0; 2639209962Smm 2640219089Spjd while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { 2641219089Spjd const char *propname = nvpair_name(pair); 2642209962Smm char *valstr; 2643209962Smm 2644209962Smm if (!zfs_prop_user(propname) || 2645219089Spjd nvpair_type(pair) != DATA_TYPE_STRING) 2646249195Smm return (SET_ERROR(EINVAL)); 2647209962Smm 2648209962Smm if (error = zfs_secpolicy_write_perms(fsname, 2649209962Smm ZFS_DELEG_PERM_USERPROP, CRED())) 2650209962Smm return (error); 2651209962Smm 2652209962Smm if (strlen(propname) >= ZAP_MAXNAMELEN) 2653249195Smm return (SET_ERROR(ENAMETOOLONG)); 2654209962Smm 2655219089Spjd VERIFY(nvpair_value_string(pair, &valstr) == 0); 2656209962Smm if (strlen(valstr) >= ZAP_MAXVALUELEN) 2657209962Smm return (E2BIG); 2658209962Smm } 2659168404Spjd return (0); 2660168404Spjd} 2661168404Spjd 2662219089Spjdstatic void 2663219089Spjdprops_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) 2664219089Spjd{ 2665219089Spjd nvpair_t *pair; 2666219089Spjd 2667219089Spjd VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2668219089Spjd 2669219089Spjd pair = NULL; 2670219089Spjd while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { 2671219089Spjd if (nvlist_exists(skipped, nvpair_name(pair))) 2672219089Spjd continue; 2673219089Spjd 2674219089Spjd VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); 2675219089Spjd } 2676219089Spjd} 2677219089Spjd 2678219089Spjdstatic int 2679248571Smmclear_received_props(const char *dsname, nvlist_t *props, 2680219089Spjd nvlist_t *skipped) 2681219089Spjd{ 2682219089Spjd int err = 0; 2683219089Spjd nvlist_t *cleared_props = NULL; 2684219089Spjd props_skip(props, skipped, &cleared_props); 2685219089Spjd if (!nvlist_empty(cleared_props)) { 2686219089Spjd /* 2687219089Spjd * Acts on local properties until the dataset has received 2688219089Spjd * properties at least once on or after SPA_VERSION_RECVD_PROPS. 2689219089Spjd */ 2690219089Spjd zprop_source_t flags = (ZPROP_SRC_NONE | 2691248571Smm (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); 2692248571Smm err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); 2693219089Spjd } 2694219089Spjd nvlist_free(cleared_props); 2695219089Spjd return (err); 2696219089Spjd} 2697219089Spjd 2698185029Spjd/* 2699185029Spjd * inputs: 2700185029Spjd * zc_name name of filesystem 2701209962Smm * zc_value name of property to set 2702185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 2703219089Spjd * zc_cookie received properties flag 2704185029Spjd * 2705219089Spjd * outputs: 2706219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 2707185029Spjd */ 2708168404Spjdstatic int 2709168404Spjdzfs_ioc_set_prop(zfs_cmd_t *zc) 2710168404Spjd{ 2711168404Spjd nvlist_t *nvl; 2712219089Spjd boolean_t received = zc->zc_cookie; 2713219089Spjd zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : 2714219089Spjd ZPROP_SRC_LOCAL); 2715248571Smm nvlist_t *errors; 2716168404Spjd int error; 2717168404Spjd 2718185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2719219089Spjd zc->zc_iflags, &nvl)) != 0) 2720185029Spjd return (error); 2721168404Spjd 2722219089Spjd if (received) { 2723185029Spjd nvlist_t *origprops; 2724185029Spjd 2725248571Smm if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { 2726248571Smm (void) clear_received_props(zc->zc_name, 2727248571Smm origprops, nvl); 2728248571Smm nvlist_free(origprops); 2729248571Smm } 2730219089Spjd 2731248571Smm error = dsl_prop_set_hasrecvd(zc->zc_name); 2732219089Spjd } 2733185029Spjd 2734248571Smm errors = fnvlist_alloc(); 2735248571Smm if (error == 0) 2736248571Smm error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); 2737219089Spjd 2738219089Spjd if (zc->zc_nvlist_dst != 0 && errors != NULL) { 2739219089Spjd (void) put_nvlist(zc, errors); 2740168404Spjd } 2741168404Spjd 2742219089Spjd nvlist_free(errors); 2743168404Spjd nvlist_free(nvl); 2744168404Spjd return (error); 2745168404Spjd} 2746168404Spjd 2747185029Spjd/* 2748185029Spjd * inputs: 2749185029Spjd * zc_name name of filesystem 2750185029Spjd * zc_value name of property to inherit 2751219089Spjd * zc_cookie revert to received value if TRUE 2752185029Spjd * 2753185029Spjd * outputs: none 2754185029Spjd */ 2755168404Spjdstatic int 2756185029Spjdzfs_ioc_inherit_prop(zfs_cmd_t *zc) 2757185029Spjd{ 2758219089Spjd const char *propname = zc->zc_value; 2759219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 2760219089Spjd boolean_t received = zc->zc_cookie; 2761219089Spjd zprop_source_t source = (received 2762219089Spjd ? ZPROP_SRC_NONE /* revert to received value, if any */ 2763219089Spjd : ZPROP_SRC_INHERITED); /* explicitly inherit */ 2764219089Spjd 2765219089Spjd if (received) { 2766219089Spjd nvlist_t *dummy; 2767219089Spjd nvpair_t *pair; 2768219089Spjd zprop_type_t type; 2769219089Spjd int err; 2770219089Spjd 2771219089Spjd /* 2772219089Spjd * zfs_prop_set_special() expects properties in the form of an 2773219089Spjd * nvpair with type info. 2774219089Spjd */ 2775219089Spjd if (prop == ZPROP_INVAL) { 2776219089Spjd if (!zfs_prop_user(propname)) 2777249195Smm return (SET_ERROR(EINVAL)); 2778219089Spjd 2779219089Spjd type = PROP_TYPE_STRING; 2780219089Spjd } else if (prop == ZFS_PROP_VOLSIZE || 2781219089Spjd prop == ZFS_PROP_VERSION) { 2782249195Smm return (SET_ERROR(EINVAL)); 2783219089Spjd } else { 2784219089Spjd type = zfs_prop_get_type(prop); 2785219089Spjd } 2786219089Spjd 2787219089Spjd VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); 2788219089Spjd 2789219089Spjd switch (type) { 2790219089Spjd case PROP_TYPE_STRING: 2791219089Spjd VERIFY(0 == nvlist_add_string(dummy, propname, "")); 2792219089Spjd break; 2793219089Spjd case PROP_TYPE_NUMBER: 2794219089Spjd case PROP_TYPE_INDEX: 2795219089Spjd VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); 2796219089Spjd break; 2797219089Spjd default: 2798219089Spjd nvlist_free(dummy); 2799249195Smm return (SET_ERROR(EINVAL)); 2800219089Spjd } 2801219089Spjd 2802219089Spjd pair = nvlist_next_nvpair(dummy, NULL); 2803219089Spjd err = zfs_prop_set_special(zc->zc_name, source, pair); 2804219089Spjd nvlist_free(dummy); 2805219089Spjd if (err != -1) 2806219089Spjd return (err); /* special property already handled */ 2807219089Spjd } else { 2808219089Spjd /* 2809219089Spjd * Only check this in the non-received case. We want to allow 2810219089Spjd * 'inherit -S' to revert non-inheritable properties like quota 2811219089Spjd * and reservation to the received or default values even though 2812219089Spjd * they are not considered inheritable. 2813219089Spjd */ 2814219089Spjd if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) 2815249195Smm return (SET_ERROR(EINVAL)); 2816219089Spjd } 2817219089Spjd 2818248571Smm /* property name has been validated by zfs_secpolicy_inherit_prop() */ 2819248571Smm return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); 2820185029Spjd} 2821185029Spjd 2822185029Spjdstatic int 2823169055Spjdzfs_ioc_pool_set_props(zfs_cmd_t *zc) 2824168404Spjd{ 2825185029Spjd nvlist_t *props; 2826168404Spjd spa_t *spa; 2827185029Spjd int error; 2828219089Spjd nvpair_t *pair; 2829168404Spjd 2830219089Spjd if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2831219089Spjd zc->zc_iflags, &props)) 2832168404Spjd return (error); 2833168404Spjd 2834209962Smm /* 2835209962Smm * If the only property is the configfile, then just do a spa_lookup() 2836209962Smm * to handle the faulted case. 2837209962Smm */ 2838219089Spjd pair = nvlist_next_nvpair(props, NULL); 2839219089Spjd if (pair != NULL && strcmp(nvpair_name(pair), 2840209962Smm zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && 2841219089Spjd nvlist_next_nvpair(props, pair) == NULL) { 2842209962Smm mutex_enter(&spa_namespace_lock); 2843209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) { 2844209962Smm spa_configfile_set(spa, props, B_FALSE); 2845209962Smm spa_config_sync(spa, B_FALSE, B_TRUE); 2846209962Smm } 2847209962Smm mutex_exit(&spa_namespace_lock); 2848219089Spjd if (spa != NULL) { 2849219089Spjd nvlist_free(props); 2850209962Smm return (0); 2851219089Spjd } 2852209962Smm } 2853209962Smm 2854168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2855185029Spjd nvlist_free(props); 2856168404Spjd return (error); 2857168404Spjd } 2858168404Spjd 2859185029Spjd error = spa_prop_set(spa, props); 2860168404Spjd 2861185029Spjd nvlist_free(props); 2862168404Spjd spa_close(spa, FTAG); 2863168404Spjd 2864168404Spjd return (error); 2865168404Spjd} 2866168404Spjd 2867168404Spjdstatic int 2868169055Spjdzfs_ioc_pool_get_props(zfs_cmd_t *zc) 2869168404Spjd{ 2870168404Spjd spa_t *spa; 2871168404Spjd int error; 2872168404Spjd nvlist_t *nvp = NULL; 2873168404Spjd 2874209962Smm if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { 2875209962Smm /* 2876209962Smm * If the pool is faulted, there may be properties we can still 2877209962Smm * get (such as altroot and cachefile), so attempt to get them 2878209962Smm * anyway. 2879209962Smm */ 2880209962Smm mutex_enter(&spa_namespace_lock); 2881209962Smm if ((spa = spa_lookup(zc->zc_name)) != NULL) 2882209962Smm error = spa_prop_get(spa, &nvp); 2883209962Smm mutex_exit(&spa_namespace_lock); 2884209962Smm } else { 2885209962Smm error = spa_prop_get(spa, &nvp); 2886209962Smm spa_close(spa, FTAG); 2887209962Smm } 2888168404Spjd 2889168404Spjd if (error == 0 && zc->zc_nvlist_dst != 0) 2890168404Spjd error = put_nvlist(zc, nvp); 2891168404Spjd else 2892249195Smm error = SET_ERROR(EFAULT); 2893168404Spjd 2894209962Smm nvlist_free(nvp); 2895168404Spjd return (error); 2896168404Spjd} 2897168404Spjd 2898185029Spjd/* 2899185029Spjd * inputs: 2900185029Spjd * zc_name name of filesystem 2901185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 2902185029Spjd * zc_perm_action allow/unallow flag 2903185029Spjd * 2904185029Spjd * outputs: none 2905185029Spjd */ 2906185029Spjdstatic int 2907185029Spjdzfs_ioc_set_fsacl(zfs_cmd_t *zc) 2908185029Spjd{ 2909185029Spjd int error; 2910185029Spjd nvlist_t *fsaclnv = NULL; 2911185029Spjd 2912185029Spjd if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 2913219089Spjd zc->zc_iflags, &fsaclnv)) != 0) 2914185029Spjd return (error); 2915185029Spjd 2916185029Spjd /* 2917185029Spjd * Verify nvlist is constructed correctly 2918185029Spjd */ 2919185029Spjd if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { 2920185029Spjd nvlist_free(fsaclnv); 2921249195Smm return (SET_ERROR(EINVAL)); 2922185029Spjd } 2923185029Spjd 2924185029Spjd /* 2925185029Spjd * If we don't have PRIV_SYS_MOUNT, then validate 2926185029Spjd * that user is allowed to hand out each permission in 2927185029Spjd * the nvlist(s) 2928185029Spjd */ 2929185029Spjd 2930185029Spjd error = secpolicy_zfs(CRED()); 2931248571Smm if (error != 0) { 2932185029Spjd if (zc->zc_perm_action == B_FALSE) { 2933185029Spjd error = dsl_deleg_can_allow(zc->zc_name, 2934185029Spjd fsaclnv, CRED()); 2935185029Spjd } else { 2936185029Spjd error = dsl_deleg_can_unallow(zc->zc_name, 2937185029Spjd fsaclnv, CRED()); 2938185029Spjd } 2939185029Spjd } 2940185029Spjd 2941185029Spjd if (error == 0) 2942185029Spjd error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); 2943185029Spjd 2944185029Spjd nvlist_free(fsaclnv); 2945185029Spjd return (error); 2946185029Spjd} 2947185029Spjd 2948185029Spjd/* 2949185029Spjd * inputs: 2950185029Spjd * zc_name name of filesystem 2951185029Spjd * 2952185029Spjd * outputs: 2953185029Spjd * zc_nvlist_src{_size} nvlist of delegated permissions 2954185029Spjd */ 2955185029Spjdstatic int 2956185029Spjdzfs_ioc_get_fsacl(zfs_cmd_t *zc) 2957185029Spjd{ 2958185029Spjd nvlist_t *nvp; 2959185029Spjd int error; 2960185029Spjd 2961185029Spjd if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { 2962185029Spjd error = put_nvlist(zc, nvp); 2963185029Spjd nvlist_free(nvp); 2964185029Spjd } 2965185029Spjd 2966185029Spjd return (error); 2967185029Spjd} 2968185029Spjd 2969185029Spjd/* 2970168404Spjd * Search the vfs list for a specified resource. Returns a pointer to it 2971168404Spjd * or NULL if no suitable entry is found. The caller of this routine 2972168404Spjd * is responsible for releasing the returned vfs pointer. 2973168404Spjd */ 2974168404Spjdstatic vfs_t * 2975168404Spjdzfs_get_vfs(const char *resource) 2976168404Spjd{ 2977168404Spjd vfs_t *vfsp; 2978168404Spjd 2979168404Spjd mtx_lock(&mountlist_mtx); 2980168404Spjd TAILQ_FOREACH(vfsp, &mountlist, mnt_list) { 2981185029Spjd if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { 2982168404Spjd VFS_HOLD(vfsp); 2983168404Spjd break; 2984168404Spjd } 2985168404Spjd } 2986168404Spjd mtx_unlock(&mountlist_mtx); 2987168404Spjd return (vfsp); 2988168404Spjd} 2989168404Spjd 2990185029Spjd/* ARGSUSED */ 2991168404Spjdstatic void 2992185029Spjdzfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) 2993168404Spjd{ 2994185029Spjd zfs_creat_t *zct = arg; 2995168404Spjd 2996185029Spjd zfs_create_fs(os, cr, zct->zct_zplprops, tx); 2997168404Spjd} 2998168404Spjd 2999185029Spjd#define ZFS_PROP_UNDEFINED ((uint64_t)-1) 3000185029Spjd 3001185029Spjd/* 3002185029Spjd * inputs: 3003185029Spjd * createprops list of properties requested by creator 3004185029Spjd * default_zplver zpl version to use if unspecified in createprops 3005185029Spjd * fuids_ok fuids allowed in this version of the spa? 3006185029Spjd * os parent objset pointer (NULL if root fs) 3007185029Spjd * 3008185029Spjd * outputs: 3009185029Spjd * zplprops values for the zplprops we attach to the master node object 3010185029Spjd * is_ci true if requested file system will be purely case-insensitive 3011185029Spjd * 3012185029Spjd * Determine the settings for utf8only, normalization and 3013185029Spjd * casesensitivity. Specific values may have been requested by the 3014185029Spjd * creator and/or we can inherit values from the parent dataset. If 3015185029Spjd * the file system is of too early a vintage, a creator can not 3016185029Spjd * request settings for these properties, even if the requested 3017185029Spjd * setting is the default value. We don't actually want to create dsl 3018185029Spjd * properties for these, so remove them from the source nvlist after 3019185029Spjd * processing. 3020185029Spjd */ 3021168404Spjdstatic int 3022209962Smmzfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, 3023219089Spjd boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, 3024219089Spjd nvlist_t *zplprops, boolean_t *is_ci) 3025185029Spjd{ 3026185029Spjd uint64_t sense = ZFS_PROP_UNDEFINED; 3027185029Spjd uint64_t norm = ZFS_PROP_UNDEFINED; 3028185029Spjd uint64_t u8 = ZFS_PROP_UNDEFINED; 3029185029Spjd 3030185029Spjd ASSERT(zplprops != NULL); 3031185029Spjd 3032185029Spjd /* 3033185029Spjd * Pull out creator prop choices, if any. 3034185029Spjd */ 3035185029Spjd if (createprops) { 3036185029Spjd (void) nvlist_lookup_uint64(createprops, 3037185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); 3038185029Spjd (void) nvlist_lookup_uint64(createprops, 3039185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); 3040185029Spjd (void) nvlist_remove_all(createprops, 3041185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE)); 3042185029Spjd (void) nvlist_lookup_uint64(createprops, 3043185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); 3044185029Spjd (void) nvlist_remove_all(createprops, 3045185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); 3046185029Spjd (void) nvlist_lookup_uint64(createprops, 3047185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), &sense); 3048185029Spjd (void) nvlist_remove_all(createprops, 3049185029Spjd zfs_prop_to_name(ZFS_PROP_CASE)); 3050185029Spjd } 3051185029Spjd 3052185029Spjd /* 3053185029Spjd * If the zpl version requested is whacky or the file system 3054185029Spjd * or pool is version is too "young" to support normalization 3055185029Spjd * and the creator tried to set a value for one of the props, 3056185029Spjd * error out. 3057185029Spjd */ 3058185029Spjd if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || 3059185029Spjd (zplver >= ZPL_VERSION_FUID && !fuids_ok) || 3060219089Spjd (zplver >= ZPL_VERSION_SA && !sa_ok) || 3061185029Spjd (zplver < ZPL_VERSION_NORMALIZATION && 3062185029Spjd (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || 3063185029Spjd sense != ZFS_PROP_UNDEFINED))) 3064249195Smm return (SET_ERROR(ENOTSUP)); 3065185029Spjd 3066185029Spjd /* 3067185029Spjd * Put the version in the zplprops 3068185029Spjd */ 3069185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3070185029Spjd zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); 3071185029Spjd 3072185029Spjd if (norm == ZFS_PROP_UNDEFINED) 3073185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); 3074185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3075185029Spjd zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); 3076185029Spjd 3077185029Spjd /* 3078185029Spjd * If we're normalizing, names must always be valid UTF-8 strings. 3079185029Spjd */ 3080185029Spjd if (norm) 3081185029Spjd u8 = 1; 3082185029Spjd if (u8 == ZFS_PROP_UNDEFINED) 3083185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); 3084185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3085185029Spjd zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); 3086185029Spjd 3087185029Spjd if (sense == ZFS_PROP_UNDEFINED) 3088185029Spjd VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); 3089185029Spjd VERIFY(nvlist_add_uint64(zplprops, 3090185029Spjd zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); 3091185029Spjd 3092185029Spjd if (is_ci) 3093185029Spjd *is_ci = (sense == ZFS_CASE_INSENSITIVE); 3094185029Spjd 3095185029Spjd return (0); 3096185029Spjd} 3097185029Spjd 3098185029Spjdstatic int 3099185029Spjdzfs_fill_zplprops(const char *dataset, nvlist_t *createprops, 3100185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3101185029Spjd{ 3102219089Spjd boolean_t fuids_ok, sa_ok; 3103185029Spjd uint64_t zplver = ZPL_VERSION; 3104185029Spjd objset_t *os = NULL; 3105185029Spjd char parentname[MAXNAMELEN]; 3106185029Spjd char *cp; 3107219089Spjd spa_t *spa; 3108219089Spjd uint64_t spa_vers; 3109185029Spjd int error; 3110185029Spjd 3111185029Spjd (void) strlcpy(parentname, dataset, sizeof (parentname)); 3112185029Spjd cp = strrchr(parentname, '/'); 3113185029Spjd ASSERT(cp != NULL); 3114185029Spjd cp[0] = '\0'; 3115185029Spjd 3116219089Spjd if ((error = spa_open(dataset, &spa, FTAG)) != 0) 3117219089Spjd return (error); 3118185029Spjd 3119219089Spjd spa_vers = spa_version(spa); 3120219089Spjd spa_close(spa, FTAG); 3121219089Spjd 3122219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3123219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3124219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3125219089Spjd 3126185029Spjd /* 3127185029Spjd * Open parent object set so we can inherit zplprop values. 3128185029Spjd */ 3129219089Spjd if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) 3130185029Spjd return (error); 3131185029Spjd 3132219089Spjd error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, 3133185029Spjd zplprops, is_ci); 3134219089Spjd dmu_objset_rele(os, FTAG); 3135185029Spjd return (error); 3136185029Spjd} 3137185029Spjd 3138185029Spjdstatic int 3139185029Spjdzfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, 3140185029Spjd nvlist_t *zplprops, boolean_t *is_ci) 3141185029Spjd{ 3142219089Spjd boolean_t fuids_ok; 3143219089Spjd boolean_t sa_ok; 3144185029Spjd uint64_t zplver = ZPL_VERSION; 3145185029Spjd int error; 3146185029Spjd 3147219089Spjd zplver = zfs_zpl_version_map(spa_vers); 3148219089Spjd fuids_ok = (zplver >= ZPL_VERSION_FUID); 3149219089Spjd sa_ok = (zplver >= ZPL_VERSION_SA); 3150185029Spjd 3151219089Spjd error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, 3152219089Spjd createprops, zplprops, is_ci); 3153185029Spjd return (error); 3154185029Spjd} 3155185029Spjd 3156185029Spjd/* 3157248571Smm * innvl: { 3158248571Smm * "type" -> dmu_objset_type_t (int32) 3159248571Smm * (optional) "props" -> { prop -> value } 3160248571Smm * } 3161185029Spjd * 3162248571Smm * outnvl: propname -> error code (int32) 3163185029Spjd */ 3164185029Spjdstatic int 3165248571Smmzfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3166168404Spjd{ 3167168404Spjd int error = 0; 3168248571Smm zfs_creat_t zct = { 0 }; 3169185029Spjd nvlist_t *nvprops = NULL; 3170185029Spjd void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); 3171248571Smm int32_t type32; 3172248571Smm dmu_objset_type_t type; 3173248571Smm boolean_t is_insensitive = B_FALSE; 3174168404Spjd 3175248571Smm if (nvlist_lookup_int32(innvl, "type", &type32) != 0) 3176249195Smm return (SET_ERROR(EINVAL)); 3177248571Smm type = type32; 3178248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3179248571Smm 3180168404Spjd switch (type) { 3181168404Spjd case DMU_OST_ZFS: 3182168404Spjd cbfunc = zfs_create_cb; 3183168404Spjd break; 3184168404Spjd 3185168404Spjd case DMU_OST_ZVOL: 3186168404Spjd cbfunc = zvol_create_cb; 3187168404Spjd break; 3188168404Spjd 3189168404Spjd default: 3190168404Spjd cbfunc = NULL; 3191185029Spjd break; 3192168404Spjd } 3193248571Smm if (strchr(fsname, '@') || 3194248571Smm strchr(fsname, '%')) 3195249195Smm return (SET_ERROR(EINVAL)); 3196168404Spjd 3197185029Spjd zct.zct_props = nvprops; 3198168404Spjd 3199248571Smm if (cbfunc == NULL) 3200249195Smm return (SET_ERROR(EINVAL)); 3201168404Spjd 3202248571Smm if (type == DMU_OST_ZVOL) { 3203248571Smm uint64_t volsize, volblocksize; 3204185029Spjd 3205248571Smm if (nvprops == NULL) 3206249195Smm return (SET_ERROR(EINVAL)); 3207248571Smm if (nvlist_lookup_uint64(nvprops, 3208248571Smm zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) 3209249195Smm return (SET_ERROR(EINVAL)); 3210185029Spjd 3211248571Smm if ((error = nvlist_lookup_uint64(nvprops, 3212248571Smm zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 3213248571Smm &volblocksize)) != 0 && error != ENOENT) 3214249195Smm return (SET_ERROR(EINVAL)); 3215168404Spjd 3216248571Smm if (error != 0) 3217248571Smm volblocksize = zfs_prop_default_numeric( 3218248571Smm ZFS_PROP_VOLBLOCKSIZE); 3219168404Spjd 3220248571Smm if ((error = zvol_check_volblocksize( 3221248571Smm volblocksize)) != 0 || 3222248571Smm (error = zvol_check_volsize(volsize, 3223248571Smm volblocksize)) != 0) 3224248571Smm return (error); 3225248571Smm } else if (type == DMU_OST_ZFS) { 3226248571Smm int error; 3227168404Spjd 3228248571Smm /* 3229248571Smm * We have to have normalization and 3230248571Smm * case-folding flags correct when we do the 3231248571Smm * file system creation, so go figure them out 3232248571Smm * now. 3233248571Smm */ 3234248571Smm VERIFY(nvlist_alloc(&zct.zct_zplprops, 3235248571Smm NV_UNIQUE_NAME, KM_SLEEP) == 0); 3236248571Smm error = zfs_fill_zplprops(fsname, nvprops, 3237248571Smm zct.zct_zplprops, &is_insensitive); 3238248571Smm if (error != 0) { 3239248571Smm nvlist_free(zct.zct_zplprops); 3240248571Smm return (error); 3241168404Spjd } 3242168404Spjd } 3243168404Spjd 3244248571Smm error = dmu_objset_create(fsname, type, 3245248571Smm is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); 3246248571Smm nvlist_free(zct.zct_zplprops); 3247248571Smm 3248168404Spjd /* 3249168404Spjd * It would be nice to do this atomically. 3250168404Spjd */ 3251168404Spjd if (error == 0) { 3252248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3253248571Smm nvprops, outnvl); 3254219089Spjd if (error != 0) 3255248571Smm (void) dsl_destroy_head(fsname); 3256168404Spjd } 3257219089Spjd#ifdef __FreeBSD__ 3258219089Spjd if (error == 0 && type == DMU_OST_ZVOL) 3259248571Smm zvol_create_minors(fsname); 3260219089Spjd#endif 3261168404Spjd return (error); 3262168404Spjd} 3263168404Spjd 3264185029Spjd/* 3265248571Smm * innvl: { 3266248571Smm * "origin" -> name of origin snapshot 3267248571Smm * (optional) "props" -> { prop -> value } 3268248571Smm * } 3269185029Spjd * 3270248571Smm * outnvl: propname -> error code (int32) 3271185029Spjd */ 3272185029Spjdstatic int 3273248571Smmzfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) 3274168404Spjd{ 3275248571Smm int error = 0; 3276185029Spjd nvlist_t *nvprops = NULL; 3277248571Smm char *origin_name; 3278185029Spjd 3279248571Smm if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) 3280249195Smm return (SET_ERROR(EINVAL)); 3281248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); 3282185029Spjd 3283248571Smm if (strchr(fsname, '@') || 3284248571Smm strchr(fsname, '%')) 3285249195Smm return (SET_ERROR(EINVAL)); 3286248571Smm 3287248571Smm if (dataset_namecheck(origin_name, NULL, NULL) != 0) 3288249195Smm return (SET_ERROR(EINVAL)); 3289248571Smm error = dmu_objset_clone(fsname, origin_name); 3290248571Smm if (error != 0) 3291185029Spjd return (error); 3292185029Spjd 3293248571Smm /* 3294248571Smm * It would be nice to do this atomically. 3295248571Smm */ 3296248571Smm if (error == 0) { 3297248571Smm error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, 3298248571Smm nvprops, outnvl); 3299248571Smm if (error != 0) 3300248571Smm (void) dsl_destroy_head(fsname); 3301248571Smm } 3302248571Smm return (error); 3303248571Smm} 3304185029Spjd 3305248571Smm/* 3306248571Smm * innvl: { 3307248571Smm * "snaps" -> { snapshot1, snapshot2 } 3308248571Smm * (optional) "props" -> { prop -> value (string) } 3309248571Smm * } 3310248571Smm * 3311248571Smm * outnvl: snapshot -> error code (int32) 3312248571Smm */ 3313248571Smmstatic int 3314248571Smmzfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3315248571Smm{ 3316248571Smm nvlist_t *snaps; 3317248571Smm nvlist_t *props = NULL; 3318248571Smm int error, poollen; 3319248571Smm nvpair_t *pair; 3320248571Smm 3321248571Smm (void) nvlist_lookup_nvlist(innvl, "props", &props); 3322248571Smm if ((error = zfs_check_userprops(poolname, props)) != 0) 3323248571Smm return (error); 3324248571Smm 3325248571Smm if (!nvlist_empty(props) && 3326248571Smm zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) 3327249195Smm return (SET_ERROR(ENOTSUP)); 3328248571Smm 3329248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3330249195Smm return (SET_ERROR(EINVAL)); 3331248571Smm poollen = strlen(poolname); 3332248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3333248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3334248571Smm const char *name = nvpair_name(pair); 3335248571Smm const char *cp = strchr(name, '@'); 3336248571Smm 3337248571Smm /* 3338248571Smm * The snap name must contain an @, and the part after it must 3339248571Smm * contain only valid characters. 3340248571Smm */ 3341248571Smm if (cp == NULL || snapshot_namecheck(cp + 1, NULL, NULL) != 0) 3342249195Smm return (SET_ERROR(EINVAL)); 3343248571Smm 3344248571Smm /* 3345248571Smm * The snap must be in the specified pool. 3346248571Smm */ 3347248571Smm if (strncmp(name, poolname, poollen) != 0 || 3348248571Smm (name[poollen] != '/' && name[poollen] != '@')) 3349249195Smm return (SET_ERROR(EXDEV)); 3350248571Smm 3351248571Smm /* This must be the only snap of this fs. */ 3352248571Smm for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair); 3353248571Smm pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { 3354248571Smm if (strncmp(name, nvpair_name(pair2), cp - name + 1) 3355248571Smm == 0) { 3356249195Smm return (SET_ERROR(EXDEV)); 3357248571Smm } 3358248571Smm } 3359185029Spjd } 3360209962Smm 3361248571Smm error = dsl_dataset_snapshot(snaps, props, outnvl); 3362185029Spjd return (error); 3363168404Spjd} 3364168404Spjd 3365248571Smm/* 3366248571Smm * innvl: "message" -> string 3367248571Smm */ 3368248571Smm/* ARGSUSED */ 3369248571Smmstatic int 3370248571Smmzfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) 3371168404Spjd{ 3372248571Smm char *message; 3373248571Smm spa_t *spa; 3374248571Smm int error; 3375248571Smm char *poolname; 3376168404Spjd 3377248571Smm /* 3378248571Smm * The poolname in the ioctl is not set, we get it from the TSD, 3379248571Smm * which was set at the end of the last successful ioctl that allows 3380248571Smm * logging. The secpolicy func already checked that it is set. 3381248571Smm * Only one log ioctl is allowed after each successful ioctl, so 3382248571Smm * we clear the TSD here. 3383248571Smm */ 3384248571Smm poolname = tsd_get(zfs_allow_log_key); 3385248571Smm (void) tsd_set(zfs_allow_log_key, NULL); 3386248571Smm error = spa_open(poolname, &spa, FTAG); 3387248571Smm strfree(poolname); 3388248571Smm if (error != 0) 3389248571Smm return (error); 3390248571Smm 3391248571Smm if (nvlist_lookup_string(innvl, "message", &message) != 0) { 3392248571Smm spa_close(spa, FTAG); 3393249195Smm return (SET_ERROR(EINVAL)); 3394168404Spjd } 3395168404Spjd 3396248571Smm if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { 3397248571Smm spa_close(spa, FTAG); 3398249195Smm return (SET_ERROR(ENOTSUP)); 3399248571Smm } 3400168404Spjd 3401248571Smm error = spa_history_log(spa, message); 3402248571Smm spa_close(spa, FTAG); 3403248571Smm return (error); 3404248571Smm} 3405248571Smm 3406248571Smm/* 3407248571Smm * The dp_config_rwlock must not be held when calling this, because the 3408248571Smm * unmount may need to write out data. 3409248571Smm * 3410248571Smm * This function is best-effort. Callers must deal gracefully if it 3411248571Smm * remains mounted (or is remounted after this call). 3412248571Smm */ 3413248571Smmvoid 3414248571Smmzfs_unmount_snap(const char *snapname) 3415248571Smm{ 3416248571Smm vfs_t *vfsp; 3417248571Smm zfsvfs_t *zfsvfs; 3418248571Smm 3419248571Smm if (strchr(snapname, '@') == NULL) 3420248571Smm return; 3421248571Smm 3422248571Smm vfsp = zfs_get_vfs(snapname); 3423248571Smm if (vfsp == NULL) 3424248571Smm return; 3425248571Smm 3426248571Smm zfsvfs = vfsp->vfs_data; 3427248571Smm ASSERT(!dsl_pool_config_held(dmu_objset_pool(zfsvfs->z_os))); 3428248571Smm 3429248571Smm if (vn_vfswlock(vfsp->vfs_vnodecovered) != 0) { 3430168404Spjd VFS_RELE(vfsp); 3431248571Smm return; 3432168404Spjd } 3433248571Smm VFS_RELE(vfsp); 3434248571Smm 3435248571Smm /* 3436248571Smm * Always force the unmount for snapshots. 3437248571Smm */ 3438248571Smm 3439248571Smm#ifdef illumos 3440248571Smm (void) dounmount(vfsp, MS_FORCE, kcred); 3441248571Smm#else 3442248571Smm mtx_lock(&Giant); /* dounmount() */ 3443248571Smm dounmount(vfsp, MS_FORCE, curthread); 3444248571Smm mtx_unlock(&Giant); /* dounmount() */ 3445248571Smm#endif 3446248571Smm} 3447248571Smm 3448248571Smm/* ARGSUSED */ 3449248571Smmstatic int 3450248571Smmzfs_unmount_snap_cb(const char *snapname, void *arg) 3451248571Smm{ 3452248571Smm zfs_unmount_snap(snapname); 3453168404Spjd return (0); 3454168404Spjd} 3455168404Spjd 3456185029Spjd/* 3457248571Smm * When a clone is destroyed, its origin may also need to be destroyed, 3458248571Smm * in which case it must be unmounted. This routine will do that unmount 3459248571Smm * if necessary. 3460248571Smm */ 3461248571Smmvoid 3462248571Smmzfs_destroy_unmount_origin(const char *fsname) 3463248571Smm{ 3464248571Smm int error; 3465248571Smm objset_t *os; 3466248571Smm dsl_dataset_t *ds; 3467248571Smm 3468248571Smm error = dmu_objset_hold(fsname, FTAG, &os); 3469248571Smm if (error != 0) 3470248571Smm return; 3471248571Smm ds = dmu_objset_ds(os); 3472248571Smm if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { 3473248571Smm char originname[MAXNAMELEN]; 3474248571Smm dsl_dataset_name(ds->ds_prev, originname); 3475248571Smm dmu_objset_rele(os, FTAG); 3476248571Smm zfs_unmount_snap(originname); 3477248571Smm } else { 3478248571Smm dmu_objset_rele(os, FTAG); 3479248571Smm } 3480248571Smm} 3481248571Smm 3482248571Smm/* 3483248571Smm * innvl: { 3484248571Smm * "snaps" -> { snapshot1, snapshot2 } 3485248571Smm * (optional boolean) "defer" 3486248571Smm * } 3487185029Spjd * 3488248571Smm * outnvl: snapshot -> error code (int32) 3489248571Smm * 3490185029Spjd */ 3491168404Spjdstatic int 3492248571Smmzfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) 3493168404Spjd{ 3494248571Smm int poollen; 3495248571Smm nvlist_t *snaps; 3496228103Smm nvpair_t *pair; 3497248571Smm boolean_t defer; 3498168404Spjd 3499248571Smm if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) 3500249195Smm return (SET_ERROR(EINVAL)); 3501248571Smm defer = nvlist_exists(innvl, "defer"); 3502228103Smm 3503248571Smm poollen = strlen(poolname); 3504248571Smm for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; 3505248571Smm pair = nvlist_next_nvpair(snaps, pair)) { 3506228103Smm const char *name = nvpair_name(pair); 3507248571Smm 3508228103Smm /* 3509248571Smm * The snap must be in the specified pool. 3510228103Smm */ 3511248571Smm if (strncmp(name, poolname, poollen) != 0 || 3512248571Smm (name[poollen] != '/' && name[poollen] != '@')) 3513249195Smm return (SET_ERROR(EXDEV)); 3514228103Smm 3515248571Smm zfs_unmount_snap(name); 3516242862Savg (void) zvol_remove_minor(name); 3517228103Smm } 3518228103Smm 3519248571Smm return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); 3520168404Spjd} 3521168404Spjd 3522185029Spjd/* 3523185029Spjd * inputs: 3524185029Spjd * zc_name name of dataset to destroy 3525185029Spjd * zc_objset_type type of objset 3526219089Spjd * zc_defer_destroy mark for deferred destroy 3527185029Spjd * 3528185029Spjd * outputs: none 3529185029Spjd */ 3530168404Spjdstatic int 3531168404Spjdzfs_ioc_destroy(zfs_cmd_t *zc) 3532168404Spjd{ 3533219089Spjd int err; 3534248571Smm if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) 3535248571Smm zfs_unmount_snap(zc->zc_name); 3536168404Spjd 3537248571Smm if (strchr(zc->zc_name, '@')) 3538248571Smm err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); 3539248571Smm else 3540248571Smm err = dsl_destroy_head(zc->zc_name); 3541219089Spjd if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) 3542219089Spjd (void) zvol_remove_minor(zc->zc_name); 3543219089Spjd return (err); 3544168404Spjd} 3545168404Spjd 3546185029Spjd/* 3547185029Spjd * inputs: 3548185029Spjd * zc_name name of dataset to rollback (to most recent snapshot) 3549185029Spjd * 3550185029Spjd * outputs: none 3551185029Spjd */ 3552168404Spjdstatic int 3553168404Spjdzfs_ioc_rollback(zfs_cmd_t *zc) 3554168404Spjd{ 3555248571Smm zfsvfs_t *zfsvfs; 3556185029Spjd int error; 3557185029Spjd 3558209962Smm if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { 3559219089Spjd error = zfs_suspend_fs(zfsvfs); 3560185029Spjd if (error == 0) { 3561185029Spjd int resume_err; 3562185029Spjd 3563248571Smm error = dsl_dataset_rollback(zc->zc_name); 3564219089Spjd resume_err = zfs_resume_fs(zfsvfs, zc->zc_name); 3565185029Spjd error = error ? error : resume_err; 3566185029Spjd } 3567185029Spjd VFS_RELE(zfsvfs->z_vfs); 3568185029Spjd } else { 3569248571Smm error = dsl_dataset_rollback(zc->zc_name); 3570185029Spjd } 3571248571Smm return (error); 3572248571Smm} 3573185029Spjd 3574248571Smmstatic int 3575248571Smmrecursive_unmount(const char *fsname, void *arg) 3576248571Smm{ 3577248571Smm const char *snapname = arg; 3578248571Smm char fullname[MAXNAMELEN]; 3579219089Spjd 3580248571Smm (void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname); 3581248571Smm zfs_unmount_snap(fullname); 3582248571Smm return (0); 3583168404Spjd} 3584168404Spjd 3585185029Spjd/* 3586185029Spjd * inputs: 3587185029Spjd * zc_name old name of dataset 3588185029Spjd * zc_value new name of dataset 3589185029Spjd * zc_cookie recursive flag (only valid for snapshots) 3590185029Spjd * 3591185029Spjd * outputs: none 3592185029Spjd */ 3593168404Spjdstatic int 3594168404Spjdzfs_ioc_rename(zfs_cmd_t *zc) 3595168404Spjd{ 3596248571Smm boolean_t recursive = zc->zc_cookie & 1; 3597248571Smm#ifdef __FreeBSD__ 3598248571Smm boolean_t allow_mounted = zc->zc_cookie & 2; 3599248571Smm#endif 3600248571Smm char *at; 3601168676Spjd 3602168404Spjd zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; 3603185029Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 3604185029Spjd strchr(zc->zc_value, '%')) 3605249195Smm return (SET_ERROR(EINVAL)); 3606168404Spjd 3607248571Smm at = strchr(zc->zc_name, '@'); 3608248571Smm if (at != NULL) { 3609248571Smm /* snaps must be in same fs */ 3610248571Smm if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) 3611249195Smm return (SET_ERROR(EXDEV)); 3612248571Smm *at = '\0'; 3613248571Smm#ifdef illumos 3614248571Smm if (zc->zc_objset_type == DMU_OST_ZFS) { 3615248571Smm#else 3616248571Smm if (zc->zc_objset_type == DMU_OST_ZFS && allow_mounted) { 3617248571Smm#endif 3618248571Smm int error = dmu_objset_find(zc->zc_name, 3619248571Smm recursive_unmount, at + 1, 3620248571Smm recursive ? DS_FIND_CHILDREN : 0); 3621248571Smm if (error != 0) 3622248571Smm return (error); 3623248571Smm } 3624248571Smm return (dsl_dataset_rename_snapshot(zc->zc_name, 3625248571Smm at + 1, strchr(zc->zc_value, '@') + 1, recursive)); 3626248571Smm } else { 3627248571Smm#ifdef illumos 3628248571Smm if (zc->zc_objset_type == DMU_OST_ZVOL) 3629248571Smm (void) zvol_remove_minor(zc->zc_name); 3630248571Smm#endif 3631248571Smm return (dsl_dir_rename(zc->zc_name, zc->zc_value)); 3632168404Spjd } 3633168404Spjd} 3634168404Spjd 3635219089Spjdstatic int 3636219089Spjdzfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) 3637185029Spjd{ 3638219089Spjd const char *propname = nvpair_name(pair); 3639219089Spjd boolean_t issnap = (strchr(dsname, '@') != NULL); 3640219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 3641219089Spjd uint64_t intval; 3642219089Spjd int err; 3643219089Spjd 3644219089Spjd if (prop == ZPROP_INVAL) { 3645219089Spjd if (zfs_prop_user(propname)) { 3646219089Spjd if (err = zfs_secpolicy_write_perms(dsname, 3647219089Spjd ZFS_DELEG_PERM_USERPROP, cr)) 3648219089Spjd return (err); 3649219089Spjd return (0); 3650219089Spjd } 3651219089Spjd 3652219089Spjd if (!issnap && zfs_prop_userquota(propname)) { 3653219089Spjd const char *perm = NULL; 3654219089Spjd const char *uq_prefix = 3655219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; 3656219089Spjd const char *gq_prefix = 3657219089Spjd zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; 3658219089Spjd 3659219089Spjd if (strncmp(propname, uq_prefix, 3660219089Spjd strlen(uq_prefix)) == 0) { 3661219089Spjd perm = ZFS_DELEG_PERM_USERQUOTA; 3662219089Spjd } else if (strncmp(propname, gq_prefix, 3663219089Spjd strlen(gq_prefix)) == 0) { 3664219089Spjd perm = ZFS_DELEG_PERM_GROUPQUOTA; 3665219089Spjd } else { 3666219089Spjd /* USERUSED and GROUPUSED are read-only */ 3667249195Smm return (SET_ERROR(EINVAL)); 3668219089Spjd } 3669219089Spjd 3670219089Spjd if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) 3671219089Spjd return (err); 3672219089Spjd return (0); 3673219089Spjd } 3674219089Spjd 3675249195Smm return (SET_ERROR(EINVAL)); 3676219089Spjd } 3677219089Spjd 3678219089Spjd if (issnap) 3679249195Smm return (SET_ERROR(EINVAL)); 3680219089Spjd 3681219089Spjd if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 3682219089Spjd /* 3683219089Spjd * dsl_prop_get_all_impl() returns properties in this 3684219089Spjd * format. 3685219089Spjd */ 3686219089Spjd nvlist_t *attrs; 3687219089Spjd VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); 3688219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3689219089Spjd &pair) == 0); 3690219089Spjd } 3691219089Spjd 3692219089Spjd /* 3693219089Spjd * Check that this value is valid for this pool version 3694219089Spjd */ 3695219089Spjd switch (prop) { 3696219089Spjd case ZFS_PROP_COMPRESSION: 3697219089Spjd /* 3698219089Spjd * If the user specified gzip compression, make sure 3699219089Spjd * the SPA supports it. We ignore any errors here since 3700219089Spjd * we'll catch them later. 3701219089Spjd */ 3702219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 3703219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 3704219089Spjd if (intval >= ZIO_COMPRESS_GZIP_1 && 3705219089Spjd intval <= ZIO_COMPRESS_GZIP_9 && 3706219089Spjd zfs_earlier_version(dsname, 3707219089Spjd SPA_VERSION_GZIP_COMPRESSION)) { 3708249195Smm return (SET_ERROR(ENOTSUP)); 3709219089Spjd } 3710219089Spjd 3711219089Spjd if (intval == ZIO_COMPRESS_ZLE && 3712219089Spjd zfs_earlier_version(dsname, 3713219089Spjd SPA_VERSION_ZLE_COMPRESSION)) 3714249195Smm return (SET_ERROR(ENOTSUP)); 3715219089Spjd 3716246586Sdelphij if (intval == ZIO_COMPRESS_LZ4) { 3717246586Sdelphij zfeature_info_t *feature = 3718246586Sdelphij &spa_feature_table[ 3719246586Sdelphij SPA_FEATURE_LZ4_COMPRESS]; 3720246586Sdelphij spa_t *spa; 3721246586Sdelphij 3722246586Sdelphij if ((err = spa_open(dsname, &spa, FTAG)) != 0) 3723246586Sdelphij return (err); 3724246586Sdelphij 3725246586Sdelphij if (!spa_feature_is_enabled(spa, feature)) { 3726246586Sdelphij spa_close(spa, FTAG); 3727249195Smm return (SET_ERROR(ENOTSUP)); 3728246586Sdelphij } 3729246586Sdelphij spa_close(spa, FTAG); 3730246586Sdelphij } 3731246586Sdelphij 3732219089Spjd /* 3733219089Spjd * If this is a bootable dataset then 3734219089Spjd * verify that the compression algorithm 3735219089Spjd * is supported for booting. We must return 3736219089Spjd * something other than ENOTSUP since it 3737219089Spjd * implies a downrev pool version. 3738219089Spjd */ 3739219089Spjd if (zfs_is_bootfs(dsname) && 3740219089Spjd !BOOTFS_COMPRESS_VALID(intval)) { 3741249195Smm return (SET_ERROR(ERANGE)); 3742219089Spjd } 3743219089Spjd } 3744219089Spjd break; 3745219089Spjd 3746219089Spjd case ZFS_PROP_COPIES: 3747219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) 3748249195Smm return (SET_ERROR(ENOTSUP)); 3749219089Spjd break; 3750219089Spjd 3751219089Spjd case ZFS_PROP_DEDUP: 3752219089Spjd if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) 3753249195Smm return (SET_ERROR(ENOTSUP)); 3754219089Spjd break; 3755219089Spjd 3756219089Spjd case ZFS_PROP_SHARESMB: 3757219089Spjd if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) 3758249195Smm return (SET_ERROR(ENOTSUP)); 3759219089Spjd break; 3760219089Spjd 3761219089Spjd case ZFS_PROP_ACLINHERIT: 3762219089Spjd if (nvpair_type(pair) == DATA_TYPE_UINT64 && 3763219089Spjd nvpair_value_uint64(pair, &intval) == 0) { 3764219089Spjd if (intval == ZFS_ACL_PASSTHROUGH_X && 3765219089Spjd zfs_earlier_version(dsname, 3766219089Spjd SPA_VERSION_PASSTHROUGH_X)) 3767249195Smm return (SET_ERROR(ENOTSUP)); 3768219089Spjd } 3769219089Spjd break; 3770219089Spjd } 3771219089Spjd 3772219089Spjd return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); 3773219089Spjd} 3774219089Spjd 3775219089Spjd/* 3776246586Sdelphij * Checks for a race condition to make sure we don't increment a feature flag 3777246586Sdelphij * multiple times. 3778246586Sdelphij */ 3779246586Sdelphijstatic int 3780248571Smmzfs_prop_activate_feature_check(void *arg, dmu_tx_t *tx) 3781246586Sdelphij{ 3782248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 3783248571Smm zfeature_info_t *feature = arg; 3784246586Sdelphij 3785246586Sdelphij if (!spa_feature_is_active(spa, feature)) 3786246586Sdelphij return (0); 3787246586Sdelphij else 3788249195Smm return (SET_ERROR(EBUSY)); 3789246586Sdelphij} 3790246586Sdelphij 3791246586Sdelphij/* 3792246586Sdelphij * The callback invoked on feature activation in the sync task caused by 3793246586Sdelphij * zfs_prop_activate_feature. 3794246586Sdelphij */ 3795246586Sdelphijstatic void 3796248571Smmzfs_prop_activate_feature_sync(void *arg, dmu_tx_t *tx) 3797246586Sdelphij{ 3798248571Smm spa_t *spa = dmu_tx_pool(tx)->dp_spa; 3799248571Smm zfeature_info_t *feature = arg; 3800246586Sdelphij 3801246586Sdelphij spa_feature_incr(spa, feature, tx); 3802246586Sdelphij} 3803246586Sdelphij 3804246586Sdelphij/* 3805248571Smm * Activates a feature on a pool in response to a property setting. This 3806248571Smm * creates a new sync task which modifies the pool to reflect the feature 3807248571Smm * as being active. 3808248571Smm */ 3809248571Smmstatic int 3810248571Smmzfs_prop_activate_feature(spa_t *spa, zfeature_info_t *feature) 3811248571Smm{ 3812248571Smm int err; 3813248571Smm 3814248571Smm /* EBUSY here indicates that the feature is already active */ 3815248571Smm err = dsl_sync_task(spa_name(spa), 3816248571Smm zfs_prop_activate_feature_check, zfs_prop_activate_feature_sync, 3817248571Smm feature, 2); 3818248571Smm 3819248571Smm if (err != 0 && err != EBUSY) 3820248571Smm return (err); 3821248571Smm else 3822248571Smm return (0); 3823248571Smm} 3824248571Smm 3825248571Smm/* 3826219089Spjd * Removes properties from the given props list that fail permission checks 3827219089Spjd * needed to clear them and to restore them in case of a receive error. For each 3828219089Spjd * property, make sure we have both set and inherit permissions. 3829219089Spjd * 3830219089Spjd * Returns the first error encountered if any permission checks fail. If the 3831219089Spjd * caller provides a non-NULL errlist, it also gives the complete list of names 3832219089Spjd * of all the properties that failed a permission check along with the 3833219089Spjd * corresponding error numbers. The caller is responsible for freeing the 3834219089Spjd * returned errlist. 3835219089Spjd * 3836219089Spjd * If every property checks out successfully, zero is returned and the list 3837219089Spjd * pointed at by errlist is NULL. 3838219089Spjd */ 3839219089Spjdstatic int 3840219089Spjdzfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) 3841219089Spjd{ 3842185029Spjd zfs_cmd_t *zc; 3843219089Spjd nvpair_t *pair, *next_pair; 3844219089Spjd nvlist_t *errors; 3845219089Spjd int err, rv = 0; 3846185029Spjd 3847185029Spjd if (props == NULL) 3848219089Spjd return (0); 3849219089Spjd 3850219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 3851219089Spjd 3852185029Spjd zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); 3853185029Spjd (void) strcpy(zc->zc_name, dataset); 3854219089Spjd pair = nvlist_next_nvpair(props, NULL); 3855219089Spjd while (pair != NULL) { 3856219089Spjd next_pair = nvlist_next_nvpair(props, pair); 3857219089Spjd 3858219089Spjd (void) strcpy(zc->zc_value, nvpair_name(pair)); 3859219089Spjd if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || 3860248571Smm (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { 3861219089Spjd VERIFY(nvlist_remove_nvpair(props, pair) == 0); 3862219089Spjd VERIFY(nvlist_add_int32(errors, 3863219089Spjd zc->zc_value, err) == 0); 3864219089Spjd } 3865219089Spjd pair = next_pair; 3866185029Spjd } 3867185029Spjd kmem_free(zc, sizeof (zfs_cmd_t)); 3868219089Spjd 3869219089Spjd if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { 3870219089Spjd nvlist_free(errors); 3871219089Spjd errors = NULL; 3872219089Spjd } else { 3873219089Spjd VERIFY(nvpair_value_int32(pair, &rv) == 0); 3874219089Spjd } 3875219089Spjd 3876219089Spjd if (errlist == NULL) 3877219089Spjd nvlist_free(errors); 3878219089Spjd else 3879219089Spjd *errlist = errors; 3880219089Spjd 3881219089Spjd return (rv); 3882185029Spjd} 3883185029Spjd 3884219089Spjdstatic boolean_t 3885219089Spjdpropval_equals(nvpair_t *p1, nvpair_t *p2) 3886219089Spjd{ 3887219089Spjd if (nvpair_type(p1) == DATA_TYPE_NVLIST) { 3888219089Spjd /* dsl_prop_get_all_impl() format */ 3889219089Spjd nvlist_t *attrs; 3890219089Spjd VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); 3891219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3892219089Spjd &p1) == 0); 3893219089Spjd } 3894219089Spjd 3895219089Spjd if (nvpair_type(p2) == DATA_TYPE_NVLIST) { 3896219089Spjd nvlist_t *attrs; 3897219089Spjd VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); 3898219089Spjd VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, 3899219089Spjd &p2) == 0); 3900219089Spjd } 3901219089Spjd 3902219089Spjd if (nvpair_type(p1) != nvpair_type(p2)) 3903219089Spjd return (B_FALSE); 3904219089Spjd 3905219089Spjd if (nvpair_type(p1) == DATA_TYPE_STRING) { 3906219089Spjd char *valstr1, *valstr2; 3907219089Spjd 3908219089Spjd VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); 3909219089Spjd VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); 3910219089Spjd return (strcmp(valstr1, valstr2) == 0); 3911219089Spjd } else { 3912219089Spjd uint64_t intval1, intval2; 3913219089Spjd 3914219089Spjd VERIFY(nvpair_value_uint64(p1, &intval1) == 0); 3915219089Spjd VERIFY(nvpair_value_uint64(p2, &intval2) == 0); 3916219089Spjd return (intval1 == intval2); 3917219089Spjd } 3918219089Spjd} 3919219089Spjd 3920185029Spjd/* 3921219089Spjd * Remove properties from props if they are not going to change (as determined 3922219089Spjd * by comparison with origprops). Remove them from origprops as well, since we 3923219089Spjd * do not need to clear or restore properties that won't change. 3924219089Spjd */ 3925219089Spjdstatic void 3926219089Spjdprops_reduce(nvlist_t *props, nvlist_t *origprops) 3927219089Spjd{ 3928219089Spjd nvpair_t *pair, *next_pair; 3929219089Spjd 3930219089Spjd if (origprops == NULL) 3931219089Spjd return; /* all props need to be received */ 3932219089Spjd 3933219089Spjd pair = nvlist_next_nvpair(props, NULL); 3934219089Spjd while (pair != NULL) { 3935219089Spjd const char *propname = nvpair_name(pair); 3936219089Spjd nvpair_t *match; 3937219089Spjd 3938219089Spjd next_pair = nvlist_next_nvpair(props, pair); 3939219089Spjd 3940219089Spjd if ((nvlist_lookup_nvpair(origprops, propname, 3941219089Spjd &match) != 0) || !propval_equals(pair, match)) 3942219089Spjd goto next; /* need to set received value */ 3943219089Spjd 3944219089Spjd /* don't clear the existing received value */ 3945219089Spjd (void) nvlist_remove_nvpair(origprops, match); 3946219089Spjd /* don't bother receiving the property */ 3947219089Spjd (void) nvlist_remove_nvpair(props, pair); 3948219089Spjdnext: 3949219089Spjd pair = next_pair; 3950219089Spjd } 3951219089Spjd} 3952219089Spjd 3953219089Spjd#ifdef DEBUG 3954219089Spjdstatic boolean_t zfs_ioc_recv_inject_err; 3955219089Spjd#endif 3956219089Spjd 3957219089Spjd/* 3958185029Spjd * inputs: 3959185029Spjd * zc_name name of containing filesystem 3960185029Spjd * zc_nvlist_src{_size} nvlist of properties to apply 3961185029Spjd * zc_value name of snapshot to create 3962185029Spjd * zc_string name of clone origin (if DRR_FLAG_CLONE) 3963185029Spjd * zc_cookie file descriptor to recv from 3964185029Spjd * zc_begin_record the BEGIN record of the stream (not byteswapped) 3965185029Spjd * zc_guid force flag 3966219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor 3967219089Spjd * zc_action_handle handle for this guid/ds mapping (or zero on first call) 3968185029Spjd * 3969185029Spjd * outputs: 3970185029Spjd * zc_cookie number of bytes read 3971219089Spjd * zc_nvlist_dst{_size} error for each unapplied received property 3972219089Spjd * zc_obj zprop_errflags_t 3973219089Spjd * zc_action_handle handle for this guid/ds mapping 3974185029Spjd */ 3975168404Spjdstatic int 3976185029Spjdzfs_ioc_recv(zfs_cmd_t *zc) 3977168404Spjd{ 3978185029Spjd file_t *fp; 3979185029Spjd dmu_recv_cookie_t drc; 3980185029Spjd boolean_t force = (boolean_t)zc->zc_guid; 3981219089Spjd int fd; 3982219089Spjd int error = 0; 3983219089Spjd int props_error = 0; 3984219089Spjd nvlist_t *errors; 3985185029Spjd offset_t off; 3986219089Spjd nvlist_t *props = NULL; /* sent properties */ 3987219089Spjd nvlist_t *origprops = NULL; /* existing properties */ 3988248571Smm char *origin = NULL; 3989185029Spjd char *tosnap; 3990185029Spjd char tofs[ZFS_MAXNAMELEN]; 3991219089Spjd boolean_t first_recvd_props = B_FALSE; 3992168404Spjd 3993168404Spjd if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || 3994185029Spjd strchr(zc->zc_value, '@') == NULL || 3995185029Spjd strchr(zc->zc_value, '%')) 3996249195Smm return (SET_ERROR(EINVAL)); 3997168404Spjd 3998185029Spjd (void) strcpy(tofs, zc->zc_value); 3999185029Spjd tosnap = strchr(tofs, '@'); 4000219089Spjd *tosnap++ = '\0'; 4001185029Spjd 4002185029Spjd if (zc->zc_nvlist_src != 0 && 4003185029Spjd (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 4004219089Spjd zc->zc_iflags, &props)) != 0) 4005168404Spjd return (error); 4006168404Spjd 4007185029Spjd fd = zc->zc_cookie; 4008247602Spjd fp = getf(fd, CAP_PREAD); 4009185029Spjd if (fp == NULL) { 4010185029Spjd nvlist_free(props); 4011249195Smm return (SET_ERROR(EBADF)); 4012185029Spjd } 4013168404Spjd 4014219089Spjd VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); 4015219089Spjd 4016248571Smm if (zc->zc_string[0]) 4017248571Smm origin = zc->zc_string; 4018248571Smm 4019248571Smm error = dmu_recv_begin(tofs, tosnap, 4020248571Smm &zc->zc_begin_record, force, origin, &drc); 4021248571Smm if (error != 0) 4022248571Smm goto out; 4023248571Smm 4024248571Smm /* 4025248571Smm * Set properties before we receive the stream so that they are applied 4026248571Smm * to the new data. Note that we must call dmu_recv_stream() if 4027248571Smm * dmu_recv_begin() succeeds. 4028248571Smm */ 4029248571Smm if (props != NULL && !drc.drc_newfs) { 4030248571Smm if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= 4031248571Smm SPA_VERSION_RECVD_PROPS && 4032248571Smm !dsl_prop_get_hasrecvd(tofs)) 4033219089Spjd first_recvd_props = B_TRUE; 4034219089Spjd 4035185029Spjd /* 4036219089Spjd * If new received properties are supplied, they are to 4037219089Spjd * completely replace the existing received properties, so stash 4038219089Spjd * away the existing ones. 4039185029Spjd */ 4040248571Smm if (dsl_prop_get_received(tofs, &origprops) == 0) { 4041219089Spjd nvlist_t *errlist = NULL; 4042219089Spjd /* 4043219089Spjd * Don't bother writing a property if its value won't 4044219089Spjd * change (and avoid the unnecessary security checks). 4045219089Spjd * 4046219089Spjd * The first receive after SPA_VERSION_RECVD_PROPS is a 4047219089Spjd * special case where we blow away all local properties 4048219089Spjd * regardless. 4049219089Spjd */ 4050219089Spjd if (!first_recvd_props) 4051219089Spjd props_reduce(props, origprops); 4052248571Smm if (zfs_check_clearable(tofs, origprops, &errlist) != 0) 4053219089Spjd (void) nvlist_merge(errors, errlist, 0); 4054219089Spjd nvlist_free(errlist); 4055248571Smm 4056248571Smm if (clear_received_props(tofs, origprops, 4057248571Smm first_recvd_props ? NULL : props) != 0) 4058248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4059248571Smm } else { 4060248571Smm zc->zc_obj |= ZPROP_ERR_NOCLEAR; 4061219089Spjd } 4062185029Spjd } 4063185029Spjd 4064248571Smm if (props != NULL) { 4065248571Smm props_error = dsl_prop_set_hasrecvd(tofs); 4066185029Spjd 4067248571Smm if (props_error == 0) { 4068248571Smm (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, 4069248571Smm props, errors); 4070219089Spjd } 4071219089Spjd } 4072219089Spjd 4073248571Smm if (zc->zc_nvlist_dst_size != 0 && 4074248571Smm (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || 4075248571Smm put_nvlist(zc, errors) != 0)) { 4076185029Spjd /* 4077219089Spjd * Caller made zc->zc_nvlist_dst less than the minimum expected 4078219089Spjd * size or supplied an invalid address. 4079185029Spjd */ 4080249195Smm props_error = SET_ERROR(EINVAL); 4081185029Spjd } 4082185029Spjd 4083185029Spjd off = fp->f_offset; 4084219089Spjd error = dmu_recv_stream(&drc, fp, &off, zc->zc_cleanup_fd, 4085219089Spjd &zc->zc_action_handle); 4086185029Spjd 4087219089Spjd if (error == 0) { 4088219089Spjd zfsvfs_t *zfsvfs = NULL; 4089185029Spjd 4090219089Spjd if (getzfsvfs(tofs, &zfsvfs) == 0) { 4091219089Spjd /* online recv */ 4092219089Spjd int end_err; 4093185029Spjd 4094219089Spjd error = zfs_suspend_fs(zfsvfs); 4095219089Spjd /* 4096219089Spjd * If the suspend fails, then the recv_end will 4097219089Spjd * likely also fail, and clean up after itself. 4098219089Spjd */ 4099219089Spjd end_err = dmu_recv_end(&drc); 4100219089Spjd if (error == 0) 4101219089Spjd error = zfs_resume_fs(zfsvfs, tofs); 4102219089Spjd error = error ? error : end_err; 4103219089Spjd VFS_RELE(zfsvfs->z_vfs); 4104219089Spjd } else { 4105185029Spjd error = dmu_recv_end(&drc); 4106185029Spjd } 4107185029Spjd } 4108185029Spjd 4109185029Spjd zc->zc_cookie = off - fp->f_offset; 4110185029Spjd if (off >= 0 && off <= MAXOFFSET_T) 4111185029Spjd fp->f_offset = off; 4112185029Spjd 4113219089Spjd#ifdef DEBUG 4114219089Spjd if (zfs_ioc_recv_inject_err) { 4115219089Spjd zfs_ioc_recv_inject_err = B_FALSE; 4116219089Spjd error = 1; 4117219089Spjd } 4118219089Spjd#endif 4119243497Savg 4120243497Savg#ifdef __FreeBSD__ 4121243497Savg if (error == 0) 4122243497Savg zvol_create_minors(tofs); 4123243497Savg#endif 4124243497Savg 4125185029Spjd /* 4126185029Spjd * On error, restore the original props. 4127185029Spjd */ 4128248571Smm if (error != 0 && props != NULL && !drc.drc_newfs) { 4129248571Smm if (clear_received_props(tofs, props, NULL) != 0) { 4130248571Smm /* 4131248571Smm * We failed to clear the received properties. 4132248571Smm * Since we may have left a $recvd value on the 4133248571Smm * system, we can't clear the $hasrecvd flag. 4134248571Smm */ 4135219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4136248571Smm } else if (first_recvd_props) { 4137248571Smm dsl_prop_unset_hasrecvd(tofs); 4138219089Spjd } 4139219089Spjd 4140219089Spjd if (origprops == NULL && !drc.drc_newfs) { 4141219089Spjd /* We failed to stash the original properties. */ 4142219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4143219089Spjd } 4144219089Spjd 4145219089Spjd /* 4146219089Spjd * dsl_props_set() will not convert RECEIVED to LOCAL on or 4147219089Spjd * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL 4148219089Spjd * explictly if we're restoring local properties cleared in the 4149219089Spjd * first new-style receive. 4150219089Spjd */ 4151219089Spjd if (origprops != NULL && 4152219089Spjd zfs_set_prop_nvlist(tofs, (first_recvd_props ? 4153219089Spjd ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), 4154219089Spjd origprops, NULL) != 0) { 4155219089Spjd /* 4156219089Spjd * We stashed the original properties but failed to 4157219089Spjd * restore them. 4158219089Spjd */ 4159219089Spjd zc->zc_obj |= ZPROP_ERR_NORESTORE; 4160219089Spjd } 4161185029Spjd } 4162185029Spjdout: 4163185029Spjd nvlist_free(props); 4164185029Spjd nvlist_free(origprops); 4165219089Spjd nvlist_free(errors); 4166219089Spjd releasef(fd); 4167219089Spjd 4168219089Spjd if (error == 0) 4169219089Spjd error = props_error; 4170219089Spjd 4171168404Spjd return (error); 4172168404Spjd} 4173168404Spjd 4174185029Spjd/* 4175185029Spjd * inputs: 4176185029Spjd * zc_name name of snapshot to send 4177185029Spjd * zc_cookie file descriptor to send stream to 4178219089Spjd * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) 4179219089Spjd * zc_sendobj objsetid of snapshot to send 4180219089Spjd * zc_fromobj objsetid of incremental fromsnap (may be zero) 4181228103Smm * zc_guid if set, estimate size of stream only. zc_cookie is ignored. 4182228103Smm * output size in zc_objset_type. 4183185029Spjd * 4184185029Spjd * outputs: none 4185185029Spjd */ 4186168404Spjdstatic int 4187185029Spjdzfs_ioc_send(zfs_cmd_t *zc) 4188168404Spjd{ 4189185029Spjd int error; 4190185029Spjd offset_t off; 4191228103Smm boolean_t estimate = (zc->zc_guid != 0); 4192168404Spjd 4193248571Smm if (zc->zc_obj != 0) { 4194248571Smm dsl_pool_t *dp; 4195248571Smm dsl_dataset_t *tosnap; 4196168404Spjd 4197248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4198248571Smm if (error != 0) 4199248571Smm return (error); 4200168404Spjd 4201248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4202248571Smm if (error != 0) { 4203248571Smm dsl_pool_rele(dp, FTAG); 4204248571Smm return (error); 4205248571Smm } 4206248571Smm 4207248571Smm if (dsl_dir_is_clone(tosnap->ds_dir)) 4208248571Smm zc->zc_fromobj = tosnap->ds_dir->dd_phys->dd_origin_obj; 4209248571Smm dsl_dataset_rele(tosnap, FTAG); 4210248571Smm dsl_pool_rele(dp, FTAG); 4211219089Spjd } 4212219089Spjd 4213248571Smm if (estimate) { 4214248571Smm dsl_pool_t *dp; 4215248571Smm dsl_dataset_t *tosnap; 4216248571Smm dsl_dataset_t *fromsnap = NULL; 4217248571Smm 4218248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4219248571Smm if (error != 0) 4220168404Spjd return (error); 4221248571Smm 4222248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); 4223248571Smm if (error != 0) { 4224248571Smm dsl_pool_rele(dp, FTAG); 4225219089Spjd return (error); 4226219089Spjd } 4227168404Spjd 4228248571Smm if (zc->zc_fromobj != 0) { 4229248571Smm error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, 4230248571Smm FTAG, &fromsnap); 4231248571Smm if (error != 0) { 4232248571Smm dsl_dataset_rele(tosnap, FTAG); 4233248571Smm dsl_pool_rele(dp, FTAG); 4234248571Smm return (error); 4235248571Smm } 4236248571Smm } 4237248571Smm 4238248571Smm error = dmu_send_estimate(tosnap, fromsnap, 4239228103Smm &zc->zc_objset_type); 4240248571Smm 4241248571Smm if (fromsnap != NULL) 4242248571Smm dsl_dataset_rele(fromsnap, FTAG); 4243248571Smm dsl_dataset_rele(tosnap, FTAG); 4244248571Smm dsl_pool_rele(dp, FTAG); 4245228103Smm } else { 4246247602Spjd file_t *fp = getf(zc->zc_cookie, CAP_WRITE); 4247248571Smm if (fp == NULL) 4248249195Smm return (SET_ERROR(EBADF)); 4249168404Spjd 4250228103Smm off = fp->f_offset; 4251248571Smm error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, 4252248571Smm#ifdef illumos 4253248571Smm zc->zc_fromobj, zc->zc_cookie, fp->f_vnode, &off); 4254248571Smm#else 4255248571Smm zc->zc_fromobj, zc->zc_cookie, fp, &off); 4256248571Smm#endif 4257168404Spjd 4258228103Smm if (off >= 0 && off <= MAXOFFSET_T) 4259228103Smm fp->f_offset = off; 4260228103Smm releasef(zc->zc_cookie); 4261228103Smm } 4262168404Spjd return (error); 4263168404Spjd} 4264168404Spjd 4265235222Smm/* 4266235222Smm * inputs: 4267235222Smm * zc_name name of snapshot on which to report progress 4268235222Smm * zc_cookie file descriptor of send stream 4269235222Smm * 4270235222Smm * outputs: 4271235222Smm * zc_cookie number of bytes written in send stream thus far 4272235222Smm */ 4273168404Spjdstatic int 4274235222Smmzfs_ioc_send_progress(zfs_cmd_t *zc) 4275235222Smm{ 4276248571Smm dsl_pool_t *dp; 4277235222Smm dsl_dataset_t *ds; 4278235222Smm dmu_sendarg_t *dsp = NULL; 4279235222Smm int error; 4280235222Smm 4281248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 4282248571Smm if (error != 0) 4283235222Smm return (error); 4284235222Smm 4285248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); 4286248571Smm if (error != 0) { 4287248571Smm dsl_pool_rele(dp, FTAG); 4288248571Smm return (error); 4289248571Smm } 4290248571Smm 4291235222Smm mutex_enter(&ds->ds_sendstream_lock); 4292235222Smm 4293235222Smm /* 4294235222Smm * Iterate over all the send streams currently active on this dataset. 4295235222Smm * If there's one which matches the specified file descriptor _and_ the 4296235222Smm * stream was started by the current process, return the progress of 4297235222Smm * that stream. 4298235222Smm */ 4299235222Smm for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; 4300235222Smm dsp = list_next(&ds->ds_sendstreams, dsp)) { 4301235222Smm if (dsp->dsa_outfd == zc->zc_cookie && 4302235222Smm dsp->dsa_proc == curproc) 4303235222Smm break; 4304235222Smm } 4305235222Smm 4306235222Smm if (dsp != NULL) 4307235222Smm zc->zc_cookie = *(dsp->dsa_off); 4308235222Smm else 4309249195Smm error = SET_ERROR(ENOENT); 4310235222Smm 4311235222Smm mutex_exit(&ds->ds_sendstream_lock); 4312235222Smm dsl_dataset_rele(ds, FTAG); 4313248571Smm dsl_pool_rele(dp, FTAG); 4314235222Smm return (error); 4315235222Smm} 4316235222Smm 4317235222Smmstatic int 4318168404Spjdzfs_ioc_inject_fault(zfs_cmd_t *zc) 4319168404Spjd{ 4320168404Spjd int id, error; 4321168404Spjd 4322168404Spjd error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, 4323168404Spjd &zc->zc_inject_record); 4324168404Spjd 4325168404Spjd if (error == 0) 4326168404Spjd zc->zc_guid = (uint64_t)id; 4327168404Spjd 4328168404Spjd return (error); 4329168404Spjd} 4330168404Spjd 4331168404Spjdstatic int 4332168404Spjdzfs_ioc_clear_fault(zfs_cmd_t *zc) 4333168404Spjd{ 4334168404Spjd return (zio_clear_fault((int)zc->zc_guid)); 4335168404Spjd} 4336168404Spjd 4337168404Spjdstatic int 4338168404Spjdzfs_ioc_inject_list_next(zfs_cmd_t *zc) 4339168404Spjd{ 4340168404Spjd int id = (int)zc->zc_guid; 4341168404Spjd int error; 4342168404Spjd 4343168404Spjd error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), 4344168404Spjd &zc->zc_inject_record); 4345168404Spjd 4346168404Spjd zc->zc_guid = id; 4347168404Spjd 4348168404Spjd return (error); 4349168404Spjd} 4350168404Spjd 4351168404Spjdstatic int 4352168404Spjdzfs_ioc_error_log(zfs_cmd_t *zc) 4353168404Spjd{ 4354168404Spjd spa_t *spa; 4355168404Spjd int error; 4356168404Spjd size_t count = (size_t)zc->zc_nvlist_dst_size; 4357168404Spjd 4358168404Spjd if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) 4359168404Spjd return (error); 4360168404Spjd 4361168404Spjd error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, 4362168404Spjd &count); 4363168404Spjd if (error == 0) 4364168404Spjd zc->zc_nvlist_dst_size = count; 4365168404Spjd else 4366168404Spjd zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); 4367168404Spjd 4368168404Spjd spa_close(spa, FTAG); 4369168404Spjd 4370168404Spjd return (error); 4371168404Spjd} 4372168404Spjd 4373168404Spjdstatic int 4374168404Spjdzfs_ioc_clear(zfs_cmd_t *zc) 4375168404Spjd{ 4376168404Spjd spa_t *spa; 4377168404Spjd vdev_t *vd; 4378168404Spjd int error; 4379168404Spjd 4380185029Spjd /* 4381185029Spjd * On zpool clear we also fix up missing slogs 4382185029Spjd */ 4383185029Spjd mutex_enter(&spa_namespace_lock); 4384185029Spjd spa = spa_lookup(zc->zc_name); 4385185029Spjd if (spa == NULL) { 4386185029Spjd mutex_exit(&spa_namespace_lock); 4387249195Smm return (SET_ERROR(EIO)); 4388185029Spjd } 4389219089Spjd if (spa_get_log_state(spa) == SPA_LOG_MISSING) { 4390185029Spjd /* we need to let spa_open/spa_load clear the chains */ 4391219089Spjd spa_set_log_state(spa, SPA_LOG_CLEAR); 4392185029Spjd } 4393219089Spjd spa->spa_last_open_failed = 0; 4394185029Spjd mutex_exit(&spa_namespace_lock); 4395185029Spjd 4396219089Spjd if (zc->zc_cookie & ZPOOL_NO_REWIND) { 4397219089Spjd error = spa_open(zc->zc_name, &spa, FTAG); 4398219089Spjd } else { 4399219089Spjd nvlist_t *policy; 4400219089Spjd nvlist_t *config = NULL; 4401219089Spjd 4402219089Spjd if (zc->zc_nvlist_src == 0) 4403249195Smm return (SET_ERROR(EINVAL)); 4404219089Spjd 4405219089Spjd if ((error = get_nvlist(zc->zc_nvlist_src, 4406219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { 4407219089Spjd error = spa_open_rewind(zc->zc_name, &spa, FTAG, 4408219089Spjd policy, &config); 4409219089Spjd if (config != NULL) { 4410219089Spjd int err; 4411219089Spjd 4412219089Spjd if ((err = put_nvlist(zc, config)) != 0) 4413219089Spjd error = err; 4414219089Spjd nvlist_free(config); 4415219089Spjd } 4416219089Spjd nvlist_free(policy); 4417219089Spjd } 4418219089Spjd } 4419219089Spjd 4420248571Smm if (error != 0) 4421168404Spjd return (error); 4422168404Spjd 4423219089Spjd spa_vdev_state_enter(spa, SCL_NONE); 4424168404Spjd 4425168404Spjd if (zc->zc_guid == 0) { 4426168404Spjd vd = NULL; 4427185029Spjd } else { 4428185029Spjd vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); 4429185029Spjd if (vd == NULL) { 4430185029Spjd (void) spa_vdev_state_exit(spa, NULL, ENODEV); 4431185029Spjd spa_close(spa, FTAG); 4432249195Smm return (SET_ERROR(ENODEV)); 4433185029Spjd } 4434168404Spjd } 4435168404Spjd 4436168404Spjd vdev_clear(spa, vd); 4437168404Spjd 4438185029Spjd (void) spa_vdev_state_exit(spa, NULL, 0); 4439168404Spjd 4440185029Spjd /* 4441185029Spjd * Resume any suspended I/Os. 4442185029Spjd */ 4443209962Smm if (zio_resume(spa) != 0) 4444249195Smm error = SET_ERROR(EIO); 4445185029Spjd 4446168404Spjd spa_close(spa, FTAG); 4447168404Spjd 4448209962Smm return (error); 4449168404Spjd} 4450168404Spjd 4451236155Smmstatic int 4452236155Smmzfs_ioc_pool_reopen(zfs_cmd_t *zc) 4453236155Smm{ 4454236155Smm spa_t *spa; 4455236155Smm int error; 4456236155Smm 4457236155Smm error = spa_open(zc->zc_name, &spa, FTAG); 4458248571Smm if (error != 0) 4459236155Smm return (error); 4460236155Smm 4461236155Smm spa_vdev_state_enter(spa, SCL_NONE); 4462240133Smm 4463240133Smm /* 4464240133Smm * If a resilver is already in progress then set the 4465240133Smm * spa_scrub_reopen flag to B_TRUE so that we don't restart 4466240133Smm * the scan as a side effect of the reopen. Otherwise, let 4467240133Smm * vdev_open() decided if a resilver is required. 4468240133Smm */ 4469240133Smm spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); 4470236155Smm vdev_reopen(spa->spa_root_vdev); 4471240133Smm spa->spa_scrub_reopen = B_FALSE; 4472240133Smm 4473236155Smm (void) spa_vdev_state_exit(spa, NULL, 0); 4474236155Smm spa_close(spa, FTAG); 4475236155Smm return (0); 4476236155Smm} 4477185029Spjd/* 4478185029Spjd * inputs: 4479185029Spjd * zc_name name of filesystem 4480185029Spjd * zc_value name of origin snapshot 4481185029Spjd * 4482219089Spjd * outputs: 4483219089Spjd * zc_string name of conflicting snapshot, if there is one 4484185029Spjd */ 4485168404Spjdstatic int 4486168404Spjdzfs_ioc_promote(zfs_cmd_t *zc) 4487168404Spjd{ 4488168404Spjd char *cp; 4489168404Spjd 4490168404Spjd /* 4491168404Spjd * We don't need to unmount *all* the origin fs's snapshots, but 4492168404Spjd * it's easier. 4493168404Spjd */ 4494168404Spjd cp = strchr(zc->zc_value, '@'); 4495168404Spjd if (cp) 4496168404Spjd *cp = '\0'; 4497168404Spjd (void) dmu_objset_find(zc->zc_value, 4498248571Smm zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); 4499219089Spjd return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); 4500168404Spjd} 4501168404Spjd 4502185029Spjd/* 4503209962Smm * Retrieve a single {user|group}{used|quota}@... property. 4504209962Smm * 4505209962Smm * inputs: 4506209962Smm * zc_name name of filesystem 4507209962Smm * zc_objset_type zfs_userquota_prop_t 4508209962Smm * zc_value domain name (eg. "S-1-234-567-89") 4509209962Smm * zc_guid RID/UID/GID 4510209962Smm * 4511209962Smm * outputs: 4512209962Smm * zc_cookie property value 4513209962Smm */ 4514209962Smmstatic int 4515209962Smmzfs_ioc_userspace_one(zfs_cmd_t *zc) 4516209962Smm{ 4517209962Smm zfsvfs_t *zfsvfs; 4518209962Smm int error; 4519209962Smm 4520209962Smm if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) 4521249195Smm return (SET_ERROR(EINVAL)); 4522209962Smm 4523219089Spjd error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 4524248571Smm if (error != 0) 4525209962Smm return (error); 4526209962Smm 4527209962Smm error = zfs_userspace_one(zfsvfs, 4528209962Smm zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); 4529209962Smm zfsvfs_rele(zfsvfs, FTAG); 4530209962Smm 4531209962Smm return (error); 4532209962Smm} 4533209962Smm 4534209962Smm/* 4535209962Smm * inputs: 4536209962Smm * zc_name name of filesystem 4537209962Smm * zc_cookie zap cursor 4538209962Smm * zc_objset_type zfs_userquota_prop_t 4539209962Smm * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) 4540209962Smm * 4541209962Smm * outputs: 4542209962Smm * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) 4543209962Smm * zc_cookie zap cursor 4544209962Smm */ 4545209962Smmstatic int 4546209962Smmzfs_ioc_userspace_many(zfs_cmd_t *zc) 4547209962Smm{ 4548209962Smm zfsvfs_t *zfsvfs; 4549219089Spjd int bufsize = zc->zc_nvlist_dst_size; 4550209962Smm 4551219089Spjd if (bufsize <= 0) 4552249195Smm return (SET_ERROR(ENOMEM)); 4553219089Spjd 4554219089Spjd int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); 4555248571Smm if (error != 0) 4556209962Smm return (error); 4557209962Smm 4558209962Smm void *buf = kmem_alloc(bufsize, KM_SLEEP); 4559209962Smm 4560209962Smm error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, 4561209962Smm buf, &zc->zc_nvlist_dst_size); 4562209962Smm 4563209962Smm if (error == 0) { 4564221409Smarius error = ddi_copyout(buf, 4565209962Smm (void *)(uintptr_t)zc->zc_nvlist_dst, 4566221409Smarius zc->zc_nvlist_dst_size, zc->zc_iflags); 4567209962Smm } 4568209962Smm kmem_free(buf, bufsize); 4569209962Smm zfsvfs_rele(zfsvfs, FTAG); 4570209962Smm 4571209962Smm return (error); 4572209962Smm} 4573209962Smm 4574209962Smm/* 4575209962Smm * inputs: 4576209962Smm * zc_name name of filesystem 4577209962Smm * 4578209962Smm * outputs: 4579209962Smm * none 4580209962Smm */ 4581209962Smmstatic int 4582209962Smmzfs_ioc_userspace_upgrade(zfs_cmd_t *zc) 4583209962Smm{ 4584209962Smm objset_t *os; 4585219089Spjd int error = 0; 4586209962Smm zfsvfs_t *zfsvfs; 4587209962Smm 4588209962Smm if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { 4589219089Spjd if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { 4590209962Smm /* 4591209962Smm * If userused is not enabled, it may be because the 4592209962Smm * objset needs to be closed & reopened (to grow the 4593209962Smm * objset_phys_t). Suspend/resume the fs will do that. 4594209962Smm */ 4595219089Spjd error = zfs_suspend_fs(zfsvfs); 4596219089Spjd if (error == 0) 4597219089Spjd error = zfs_resume_fs(zfsvfs, zc->zc_name); 4598209962Smm } 4599209962Smm if (error == 0) 4600209962Smm error = dmu_objset_userspace_upgrade(zfsvfs->z_os); 4601209962Smm VFS_RELE(zfsvfs->z_vfs); 4602209962Smm } else { 4603219089Spjd /* XXX kind of reading contents without owning */ 4604219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 4605248571Smm if (error != 0) 4606209962Smm return (error); 4607209962Smm 4608209962Smm error = dmu_objset_userspace_upgrade(os); 4609219089Spjd dmu_objset_rele(os, FTAG); 4610209962Smm } 4611209962Smm 4612209962Smm return (error); 4613209962Smm} 4614209962Smm 4615209962Smm#ifdef sun 4616209962Smm/* 4617185029Spjd * We don't want to have a hard dependency 4618185029Spjd * against some special symbols in sharefs 4619185029Spjd * nfs, and smbsrv. Determine them if needed when 4620185029Spjd * the first file system is shared. 4621185029Spjd * Neither sharefs, nfs or smbsrv are unloadable modules. 4622185029Spjd */ 4623185029Spjdint (*znfsexport_fs)(void *arg); 4624185029Spjdint (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); 4625185029Spjdint (*zsmbexport_fs)(void *arg, boolean_t add_share); 4626185029Spjd 4627185029Spjdint zfs_nfsshare_inited; 4628185029Spjdint zfs_smbshare_inited; 4629185029Spjd 4630185029Spjdddi_modhandle_t nfs_mod; 4631185029Spjdddi_modhandle_t sharefs_mod; 4632185029Spjdddi_modhandle_t smbsrv_mod; 4633209962Smm#endif /* sun */ 4634185029Spjdkmutex_t zfs_share_lock; 4635185029Spjd 4636209962Smm#ifdef sun 4637168404Spjdstatic int 4638185029Spjdzfs_init_sharefs() 4639185029Spjd{ 4640185029Spjd int error; 4641185029Spjd 4642185029Spjd ASSERT(MUTEX_HELD(&zfs_share_lock)); 4643185029Spjd /* Both NFS and SMB shares also require sharetab support. */ 4644185029Spjd if (sharefs_mod == NULL && ((sharefs_mod = 4645185029Spjd ddi_modopen("fs/sharefs", 4646185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4647249195Smm return (SET_ERROR(ENOSYS)); 4648185029Spjd } 4649185029Spjd if (zshare_fs == NULL && ((zshare_fs = 4650185029Spjd (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) 4651185029Spjd ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { 4652249195Smm return (SET_ERROR(ENOSYS)); 4653185029Spjd } 4654185029Spjd return (0); 4655185029Spjd} 4656219089Spjd#endif /* sun */ 4657185029Spjd 4658185029Spjdstatic int 4659185029Spjdzfs_ioc_share(zfs_cmd_t *zc) 4660185029Spjd{ 4661209962Smm#ifdef sun 4662185029Spjd int error; 4663185029Spjd int opcode; 4664185029Spjd 4665185029Spjd switch (zc->zc_share.z_sharetype) { 4666185029Spjd case ZFS_SHARE_NFS: 4667185029Spjd case ZFS_UNSHARE_NFS: 4668185029Spjd if (zfs_nfsshare_inited == 0) { 4669185029Spjd mutex_enter(&zfs_share_lock); 4670185029Spjd if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", 4671185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4672185029Spjd mutex_exit(&zfs_share_lock); 4673249195Smm return (SET_ERROR(ENOSYS)); 4674185029Spjd } 4675185029Spjd if (znfsexport_fs == NULL && 4676185029Spjd ((znfsexport_fs = (int (*)(void *)) 4677185029Spjd ddi_modsym(nfs_mod, 4678185029Spjd "nfs_export", &error)) == NULL)) { 4679185029Spjd mutex_exit(&zfs_share_lock); 4680249195Smm return (SET_ERROR(ENOSYS)); 4681185029Spjd } 4682185029Spjd error = zfs_init_sharefs(); 4683248571Smm if (error != 0) { 4684185029Spjd mutex_exit(&zfs_share_lock); 4685249195Smm return (SET_ERROR(ENOSYS)); 4686185029Spjd } 4687185029Spjd zfs_nfsshare_inited = 1; 4688185029Spjd mutex_exit(&zfs_share_lock); 4689185029Spjd } 4690185029Spjd break; 4691185029Spjd case ZFS_SHARE_SMB: 4692185029Spjd case ZFS_UNSHARE_SMB: 4693185029Spjd if (zfs_smbshare_inited == 0) { 4694185029Spjd mutex_enter(&zfs_share_lock); 4695185029Spjd if (smbsrv_mod == NULL && ((smbsrv_mod = 4696185029Spjd ddi_modopen("drv/smbsrv", 4697185029Spjd KRTLD_MODE_FIRST, &error)) == NULL)) { 4698185029Spjd mutex_exit(&zfs_share_lock); 4699249195Smm return (SET_ERROR(ENOSYS)); 4700185029Spjd } 4701185029Spjd if (zsmbexport_fs == NULL && ((zsmbexport_fs = 4702185029Spjd (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, 4703185029Spjd "smb_server_share", &error)) == NULL)) { 4704185029Spjd mutex_exit(&zfs_share_lock); 4705249195Smm return (SET_ERROR(ENOSYS)); 4706185029Spjd } 4707185029Spjd error = zfs_init_sharefs(); 4708248571Smm if (error != 0) { 4709185029Spjd mutex_exit(&zfs_share_lock); 4710249195Smm return (SET_ERROR(ENOSYS)); 4711185029Spjd } 4712185029Spjd zfs_smbshare_inited = 1; 4713185029Spjd mutex_exit(&zfs_share_lock); 4714185029Spjd } 4715185029Spjd break; 4716185029Spjd default: 4717249195Smm return (SET_ERROR(EINVAL)); 4718185029Spjd } 4719185029Spjd 4720185029Spjd switch (zc->zc_share.z_sharetype) { 4721185029Spjd case ZFS_SHARE_NFS: 4722185029Spjd case ZFS_UNSHARE_NFS: 4723185029Spjd if (error = 4724185029Spjd znfsexport_fs((void *) 4725185029Spjd (uintptr_t)zc->zc_share.z_exportdata)) 4726185029Spjd return (error); 4727185029Spjd break; 4728185029Spjd case ZFS_SHARE_SMB: 4729185029Spjd case ZFS_UNSHARE_SMB: 4730185029Spjd if (error = zsmbexport_fs((void *) 4731185029Spjd (uintptr_t)zc->zc_share.z_exportdata, 4732185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? 4733209962Smm B_TRUE: B_FALSE)) { 4734185029Spjd return (error); 4735185029Spjd } 4736185029Spjd break; 4737185029Spjd } 4738185029Spjd 4739185029Spjd opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || 4740185029Spjd zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? 4741185029Spjd SHAREFS_ADD : SHAREFS_REMOVE; 4742185029Spjd 4743185029Spjd /* 4744185029Spjd * Add or remove share from sharetab 4745185029Spjd */ 4746185029Spjd error = zshare_fs(opcode, 4747185029Spjd (void *)(uintptr_t)zc->zc_share.z_sharedata, 4748185029Spjd zc->zc_share.z_sharemax); 4749185029Spjd 4750185029Spjd return (error); 4751219089Spjd 4752219089Spjd#else /* !sun */ 4753185029Spjd return (ENOSYS); 4754219089Spjd#endif /* !sun */ 4755185029Spjd} 4756185029Spjd 4757209962Smmace_t full_access[] = { 4758209962Smm {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} 4759209962Smm}; 4760209962Smm 4761219089Spjd/* 4762219089Spjd * inputs: 4763219089Spjd * zc_name name of containing filesystem 4764219089Spjd * zc_obj object # beyond which we want next in-use object # 4765219089Spjd * 4766219089Spjd * outputs: 4767219089Spjd * zc_obj next in-use object # 4768219089Spjd */ 4769219089Spjdstatic int 4770219089Spjdzfs_ioc_next_obj(zfs_cmd_t *zc) 4771219089Spjd{ 4772219089Spjd objset_t *os = NULL; 4773219089Spjd int error; 4774219089Spjd 4775219089Spjd error = dmu_objset_hold(zc->zc_name, FTAG, &os); 4776248571Smm if (error != 0) 4777219089Spjd return (error); 4778219089Spjd 4779219089Spjd error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 4780219089Spjd os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); 4781219089Spjd 4782219089Spjd dmu_objset_rele(os, FTAG); 4783219089Spjd return (error); 4784219089Spjd} 4785219089Spjd 4786219089Spjd/* 4787219089Spjd * inputs: 4788219089Spjd * zc_name name of filesystem 4789219089Spjd * zc_value prefix name for snapshot 4790219089Spjd * zc_cleanup_fd cleanup-on-exit file descriptor for calling process 4791219089Spjd * 4792219089Spjd * outputs: 4793248571Smm * zc_value short name of new snapshot 4794219089Spjd */ 4795219089Spjdstatic int 4796219089Spjdzfs_ioc_tmp_snapshot(zfs_cmd_t *zc) 4797219089Spjd{ 4798219089Spjd char *snap_name; 4799248571Smm char *hold_name; 4800219089Spjd int error; 4801248571Smm minor_t minor; 4802219089Spjd 4803248571Smm error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); 4804248571Smm if (error != 0) 4805248571Smm return (error); 4806248571Smm 4807219089Spjd snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, 4808219089Spjd (u_longlong_t)ddi_get_lbolt64()); 4809248571Smm hold_name = kmem_asprintf("%%%s", zc->zc_value); 4810219089Spjd 4811248571Smm error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, 4812248571Smm hold_name); 4813248571Smm if (error == 0) 4814248571Smm (void) strcpy(zc->zc_value, snap_name); 4815219089Spjd strfree(snap_name); 4816248571Smm strfree(hold_name); 4817248571Smm zfs_onexit_fd_rele(zc->zc_cleanup_fd); 4818248571Smm return (error); 4819219089Spjd} 4820219089Spjd 4821219089Spjd/* 4822219089Spjd * inputs: 4823219089Spjd * zc_name name of "to" snapshot 4824219089Spjd * zc_value name of "from" snapshot 4825219089Spjd * zc_cookie file descriptor to write diff data on 4826219089Spjd * 4827219089Spjd * outputs: 4828219089Spjd * dmu_diff_record_t's to the file descriptor 4829219089Spjd */ 4830219089Spjdstatic int 4831219089Spjdzfs_ioc_diff(zfs_cmd_t *zc) 4832219089Spjd{ 4833219089Spjd file_t *fp; 4834219089Spjd offset_t off; 4835219089Spjd int error; 4836219089Spjd 4837247602Spjd fp = getf(zc->zc_cookie, CAP_WRITE); 4838248571Smm if (fp == NULL) 4839249195Smm return (SET_ERROR(EBADF)); 4840219089Spjd 4841219089Spjd off = fp->f_offset; 4842219089Spjd 4843248571Smm#ifdef illumos 4844248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); 4845248571Smm#else 4846248571Smm error = dmu_diff(zc->zc_name, zc->zc_value, fp, &off); 4847248571Smm#endif 4848219089Spjd 4849219089Spjd if (off >= 0 && off <= MAXOFFSET_T) 4850219089Spjd fp->f_offset = off; 4851219089Spjd releasef(zc->zc_cookie); 4852219089Spjd 4853219089Spjd return (error); 4854219089Spjd} 4855219089Spjd 4856209962Smm#ifdef sun 4857185029Spjd/* 4858209962Smm * Remove all ACL files in shares dir 4859209962Smm */ 4860209962Smmstatic int 4861209962Smmzfs_smb_acl_purge(znode_t *dzp) 4862209962Smm{ 4863209962Smm zap_cursor_t zc; 4864209962Smm zap_attribute_t zap; 4865209962Smm zfsvfs_t *zfsvfs = dzp->z_zfsvfs; 4866209962Smm int error; 4867209962Smm 4868209962Smm for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); 4869209962Smm (error = zap_cursor_retrieve(&zc, &zap)) == 0; 4870209962Smm zap_cursor_advance(&zc)) { 4871209962Smm if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, 4872209962Smm NULL, 0)) != 0) 4873209962Smm break; 4874209962Smm } 4875209962Smm zap_cursor_fini(&zc); 4876209962Smm return (error); 4877209962Smm} 4878209962Smm#endif /* sun */ 4879209962Smm 4880209962Smmstatic int 4881209962Smmzfs_ioc_smb_acl(zfs_cmd_t *zc) 4882209962Smm{ 4883209962Smm#ifdef sun 4884209962Smm vnode_t *vp; 4885209962Smm znode_t *dzp; 4886209962Smm vnode_t *resourcevp = NULL; 4887209962Smm znode_t *sharedir; 4888209962Smm zfsvfs_t *zfsvfs; 4889209962Smm nvlist_t *nvlist; 4890209962Smm char *src, *target; 4891209962Smm vattr_t vattr; 4892209962Smm vsecattr_t vsec; 4893209962Smm int error = 0; 4894209962Smm 4895209962Smm if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, 4896209962Smm NO_FOLLOW, NULL, &vp)) != 0) 4897209962Smm return (error); 4898209962Smm 4899209962Smm /* Now make sure mntpnt and dataset are ZFS */ 4900209962Smm 4901219089Spjd if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 || 4902209962Smm (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), 4903209962Smm zc->zc_name) != 0)) { 4904209962Smm VN_RELE(vp); 4905249195Smm return (SET_ERROR(EINVAL)); 4906209962Smm } 4907209962Smm 4908209962Smm dzp = VTOZ(vp); 4909209962Smm zfsvfs = dzp->z_zfsvfs; 4910209962Smm ZFS_ENTER(zfsvfs); 4911209962Smm 4912209962Smm /* 4913209962Smm * Create share dir if its missing. 4914209962Smm */ 4915209962Smm mutex_enter(&zfsvfs->z_lock); 4916209962Smm if (zfsvfs->z_shares_dir == 0) { 4917209962Smm dmu_tx_t *tx; 4918209962Smm 4919209962Smm tx = dmu_tx_create(zfsvfs->z_os); 4920209962Smm dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, 4921209962Smm ZFS_SHARES_DIR); 4922209962Smm dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); 4923209962Smm error = dmu_tx_assign(tx, TXG_WAIT); 4924248571Smm if (error != 0) { 4925209962Smm dmu_tx_abort(tx); 4926209962Smm } else { 4927209962Smm error = zfs_create_share_dir(zfsvfs, tx); 4928209962Smm dmu_tx_commit(tx); 4929209962Smm } 4930248571Smm if (error != 0) { 4931209962Smm mutex_exit(&zfsvfs->z_lock); 4932209962Smm VN_RELE(vp); 4933209962Smm ZFS_EXIT(zfsvfs); 4934209962Smm return (error); 4935209962Smm } 4936209962Smm } 4937209962Smm mutex_exit(&zfsvfs->z_lock); 4938209962Smm 4939209962Smm ASSERT(zfsvfs->z_shares_dir); 4940209962Smm if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { 4941209962Smm VN_RELE(vp); 4942209962Smm ZFS_EXIT(zfsvfs); 4943209962Smm return (error); 4944209962Smm } 4945209962Smm 4946209962Smm switch (zc->zc_cookie) { 4947209962Smm case ZFS_SMB_ACL_ADD: 4948209962Smm vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; 4949209962Smm vattr.va_type = VREG; 4950209962Smm vattr.va_mode = S_IFREG|0777; 4951209962Smm vattr.va_uid = 0; 4952209962Smm vattr.va_gid = 0; 4953209962Smm 4954209962Smm vsec.vsa_mask = VSA_ACE; 4955209962Smm vsec.vsa_aclentp = &full_access; 4956209962Smm vsec.vsa_aclentsz = sizeof (full_access); 4957209962Smm vsec.vsa_aclcnt = 1; 4958209962Smm 4959209962Smm error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, 4960209962Smm &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); 4961209962Smm if (resourcevp) 4962209962Smm VN_RELE(resourcevp); 4963209962Smm break; 4964209962Smm 4965209962Smm case ZFS_SMB_ACL_REMOVE: 4966209962Smm error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, 4967209962Smm NULL, 0); 4968209962Smm break; 4969209962Smm 4970209962Smm case ZFS_SMB_ACL_RENAME: 4971209962Smm if ((error = get_nvlist(zc->zc_nvlist_src, 4972219089Spjd zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { 4973209962Smm VN_RELE(vp); 4974209962Smm ZFS_EXIT(zfsvfs); 4975209962Smm return (error); 4976209962Smm } 4977209962Smm if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || 4978209962Smm nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, 4979209962Smm &target)) { 4980209962Smm VN_RELE(vp); 4981209962Smm VN_RELE(ZTOV(sharedir)); 4982209962Smm ZFS_EXIT(zfsvfs); 4983219089Spjd nvlist_free(nvlist); 4984209962Smm return (error); 4985209962Smm } 4986209962Smm error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, 4987209962Smm kcred, NULL, 0); 4988209962Smm nvlist_free(nvlist); 4989209962Smm break; 4990209962Smm 4991209962Smm case ZFS_SMB_ACL_PURGE: 4992209962Smm error = zfs_smb_acl_purge(sharedir); 4993209962Smm break; 4994209962Smm 4995209962Smm default: 4996249195Smm error = SET_ERROR(EINVAL); 4997209962Smm break; 4998209962Smm } 4999209962Smm 5000209962Smm VN_RELE(vp); 5001209962Smm VN_RELE(ZTOV(sharedir)); 5002209962Smm 5003209962Smm ZFS_EXIT(zfsvfs); 5004209962Smm 5005209962Smm return (error); 5006209962Smm#else /* !sun */ 5007209962Smm return (EOPNOTSUPP); 5008209962Smm#endif /* !sun */ 5009209962Smm} 5010209962Smm 5011209962Smm/* 5012248571Smm * innvl: { 5013248571Smm * "holds" -> { snapname -> holdname (string), ... } 5014248571Smm * (optional) "cleanup_fd" -> fd (int32) 5015248571Smm * } 5016219089Spjd * 5017248571Smm * outnvl: { 5018248571Smm * snapname -> error value (int32) 5019248571Smm * ... 5020248571Smm * } 5021219089Spjd */ 5022248571Smm/* ARGSUSED */ 5023219089Spjdstatic int 5024248571Smmzfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) 5025219089Spjd{ 5026248571Smm nvlist_t *holds; 5027248571Smm int cleanup_fd = -1; 5028219089Spjd int error; 5029219089Spjd minor_t minor = 0; 5030219089Spjd 5031248571Smm error = nvlist_lookup_nvlist(args, "holds", &holds); 5032248571Smm if (error != 0) 5033249195Smm return (SET_ERROR(EINVAL)); 5034219089Spjd 5035248571Smm if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { 5036248571Smm error = zfs_onexit_fd_hold(cleanup_fd, &minor); 5037248571Smm if (error != 0) 5038219089Spjd return (error); 5039219089Spjd } 5040219089Spjd 5041248571Smm error = dsl_dataset_user_hold(holds, minor, errlist); 5042248571Smm if (minor != 0) 5043248571Smm zfs_onexit_fd_rele(cleanup_fd); 5044219089Spjd return (error); 5045219089Spjd} 5046219089Spjd 5047219089Spjd/* 5048248571Smm * innvl is not used. 5049219089Spjd * 5050248571Smm * outnvl: { 5051248571Smm * holdname -> time added (uint64 seconds since epoch) 5052248571Smm * ... 5053248571Smm * } 5054219089Spjd */ 5055248571Smm/* ARGSUSED */ 5056219089Spjdstatic int 5057248571Smmzfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) 5058219089Spjd{ 5059248571Smm return (dsl_dataset_get_holds(snapname, outnvl)); 5060219089Spjd} 5061219089Spjd 5062219089Spjd/* 5063248571Smm * innvl: { 5064248571Smm * snapname -> { holdname, ... } 5065248571Smm * ... 5066248571Smm * } 5067219089Spjd * 5068248571Smm * outnvl: { 5069248571Smm * snapname -> error value (int32) 5070248571Smm * ... 5071248571Smm * } 5072219089Spjd */ 5073248571Smm/* ARGSUSED */ 5074219089Spjdstatic int 5075248571Smmzfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) 5076219089Spjd{ 5077248571Smm nvpair_t *pair; 5078219089Spjd 5079248571Smm /* 5080248571Smm * The release may cause the snapshot to be destroyed; make sure it 5081248571Smm * is not mounted. 5082248571Smm */ 5083248571Smm for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; 5084248571Smm pair = nvlist_next_nvpair(holds, pair)) 5085248571Smm zfs_unmount_snap(nvpair_name(pair)); 5086219089Spjd 5087248571Smm return (dsl_dataset_user_release(holds, errlist)); 5088219089Spjd} 5089219089Spjd 5090219089Spjd/* 5091228103Smm * inputs: 5092228103Smm * zc_name name of new filesystem or snapshot 5093228103Smm * zc_value full name of old snapshot 5094228103Smm * 5095228103Smm * outputs: 5096228103Smm * zc_cookie space in bytes 5097228103Smm * zc_objset_type compressed space in bytes 5098228103Smm * zc_perm_action uncompressed space in bytes 5099228103Smm */ 5100228103Smmstatic int 5101228103Smmzfs_ioc_space_written(zfs_cmd_t *zc) 5102228103Smm{ 5103228103Smm int error; 5104248571Smm dsl_pool_t *dp; 5105228103Smm dsl_dataset_t *new, *old; 5106228103Smm 5107248571Smm error = dsl_pool_hold(zc->zc_name, FTAG, &dp); 5108228103Smm if (error != 0) 5109228103Smm return (error); 5110248571Smm error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); 5111228103Smm if (error != 0) { 5112248571Smm dsl_pool_rele(dp, FTAG); 5113248571Smm return (error); 5114248571Smm } 5115248571Smm error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); 5116248571Smm if (error != 0) { 5117228103Smm dsl_dataset_rele(new, FTAG); 5118248571Smm dsl_pool_rele(dp, FTAG); 5119228103Smm return (error); 5120228103Smm } 5121228103Smm 5122228103Smm error = dsl_dataset_space_written(old, new, &zc->zc_cookie, 5123228103Smm &zc->zc_objset_type, &zc->zc_perm_action); 5124228103Smm dsl_dataset_rele(old, FTAG); 5125228103Smm dsl_dataset_rele(new, FTAG); 5126248571Smm dsl_pool_rele(dp, FTAG); 5127228103Smm return (error); 5128228103Smm} 5129228103Smm 5130228103Smm/* 5131248571Smm * innvl: { 5132248571Smm * "firstsnap" -> snapshot name 5133248571Smm * } 5134228103Smm * 5135248571Smm * outnvl: { 5136248571Smm * "used" -> space in bytes 5137248571Smm * "compressed" -> compressed space in bytes 5138248571Smm * "uncompressed" -> uncompressed space in bytes 5139248571Smm * } 5140228103Smm */ 5141228103Smmstatic int 5142248571Smmzfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) 5143228103Smm{ 5144228103Smm int error; 5145248571Smm dsl_pool_t *dp; 5146228103Smm dsl_dataset_t *new, *old; 5147248571Smm char *firstsnap; 5148248571Smm uint64_t used, comp, uncomp; 5149228103Smm 5150248571Smm if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) 5151249195Smm return (SET_ERROR(EINVAL)); 5152248571Smm 5153248571Smm error = dsl_pool_hold(lastsnap, FTAG, &dp); 5154228103Smm if (error != 0) 5155228103Smm return (error); 5156248571Smm 5157248571Smm error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); 5158228103Smm if (error != 0) { 5159248571Smm dsl_pool_rele(dp, FTAG); 5160248571Smm return (error); 5161248571Smm } 5162248571Smm error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); 5163248571Smm if (error != 0) { 5164228103Smm dsl_dataset_rele(new, FTAG); 5165248571Smm dsl_pool_rele(dp, FTAG); 5166228103Smm return (error); 5167228103Smm } 5168228103Smm 5169248571Smm error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); 5170228103Smm dsl_dataset_rele(old, FTAG); 5171228103Smm dsl_dataset_rele(new, FTAG); 5172248571Smm dsl_pool_rele(dp, FTAG); 5173248571Smm fnvlist_add_uint64(outnvl, "used", used); 5174248571Smm fnvlist_add_uint64(outnvl, "compressed", comp); 5175248571Smm fnvlist_add_uint64(outnvl, "uncompressed", uncomp); 5176228103Smm return (error); 5177228103Smm} 5178228103Smm 5179185029Spjdstatic int 5180168404Spjdzfs_ioc_jail(zfs_cmd_t *zc) 5181168404Spjd{ 5182168404Spjd 5183185029Spjd return (zone_dataset_attach(curthread->td_ucred, zc->zc_name, 5184185029Spjd (int)zc->zc_jailid)); 5185168404Spjd} 5186168404Spjd 5187168404Spjdstatic int 5188168404Spjdzfs_ioc_unjail(zfs_cmd_t *zc) 5189168404Spjd{ 5190168404Spjd 5191185029Spjd return (zone_dataset_detach(curthread->td_ucred, zc->zc_name, 5192185029Spjd (int)zc->zc_jailid)); 5193168404Spjd} 5194168404Spjd 5195248571Smm/* 5196248571Smm * innvl: { 5197248571Smm * "fd" -> file descriptor to write stream to (int32) 5198248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5199248571Smm * } 5200248571Smm * 5201248571Smm * outnvl is unused 5202248571Smm */ 5203248571Smm/* ARGSUSED */ 5204248571Smmstatic int 5205248571Smmzfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5206248571Smm{ 5207248571Smm int error; 5208248571Smm offset_t off; 5209248571Smm char *fromname = NULL; 5210248571Smm int fd; 5211168404Spjd 5212248571Smm error = nvlist_lookup_int32(innvl, "fd", &fd); 5213248571Smm if (error != 0) 5214249195Smm return (SET_ERROR(EINVAL)); 5215248571Smm 5216248571Smm (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); 5217248571Smm 5218248571Smm file_t *fp = getf(fd, CAP_READ); 5219248571Smm if (fp == NULL) 5220249195Smm return (SET_ERROR(EBADF)); 5221248571Smm 5222248571Smm off = fp->f_offset; 5223248571Smm#ifdef illumos 5224248571Smm error = dmu_send(snapname, fromname, fd, fp->f_vnode, &off); 5225248571Smm#else 5226248571Smm error = dmu_send(snapname, fromname, fd, fp, &off); 5227248571Smm#endif 5228248571Smm 5229248571Smm#ifdef illumos 5230248571Smm if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) 5231248571Smm fp->f_offset = off; 5232248571Smm#else 5233248571Smm fp->f_offset = off; 5234248571Smm#endif 5235248571Smm 5236248571Smm releasef(fd); 5237248571Smm return (error); 5238248571Smm} 5239248571Smm 5240248571Smm/* 5241248571Smm * Determine approximately how large a zfs send stream will be -- the number 5242248571Smm * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). 5243248571Smm * 5244248571Smm * innvl: { 5245248571Smm * (optional) "fromsnap" -> full snap name to send an incremental from 5246248571Smm * } 5247248571Smm * 5248248571Smm * outnvl: { 5249248571Smm * "space" -> bytes of space (uint64) 5250248571Smm * } 5251248571Smm */ 5252248571Smmstatic int 5253248571Smmzfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) 5254248571Smm{ 5255248571Smm dsl_pool_t *dp; 5256248571Smm dsl_dataset_t *fromsnap = NULL; 5257248571Smm dsl_dataset_t *tosnap; 5258248571Smm int error; 5259248571Smm char *fromname; 5260248571Smm uint64_t space; 5261248571Smm 5262248571Smm error = dsl_pool_hold(snapname, FTAG, &dp); 5263248571Smm if (error != 0) 5264248571Smm return (error); 5265248571Smm 5266248571Smm error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); 5267248571Smm if (error != 0) { 5268248571Smm dsl_pool_rele(dp, FTAG); 5269248571Smm return (error); 5270248571Smm } 5271248571Smm 5272248571Smm error = nvlist_lookup_string(innvl, "fromsnap", &fromname); 5273248571Smm if (error == 0) { 5274248571Smm error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); 5275248571Smm if (error != 0) { 5276248571Smm dsl_dataset_rele(tosnap, FTAG); 5277248571Smm dsl_pool_rele(dp, FTAG); 5278248571Smm return (error); 5279248571Smm } 5280248571Smm } 5281248571Smm 5282248571Smm error = dmu_send_estimate(tosnap, fromsnap, &space); 5283248571Smm fnvlist_add_uint64(outnvl, "space", space); 5284248571Smm 5285248571Smm if (fromsnap != NULL) 5286248571Smm dsl_dataset_rele(fromsnap, FTAG); 5287248571Smm dsl_dataset_rele(tosnap, FTAG); 5288248571Smm dsl_pool_rele(dp, FTAG); 5289248571Smm return (error); 5290248571Smm} 5291248571Smm 5292248571Smm 5293248571Smmstatic zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; 5294248571Smm 5295248571Smmstatic void 5296248571Smmzfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5297248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 5298248571Smm boolean_t log_history, zfs_ioc_poolcheck_t pool_check) 5299248571Smm{ 5300248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 5301248571Smm 5302248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 5303248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 5304248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 5305248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 5306248571Smm 5307248571Smm vec->zvec_legacy_func = func; 5308248571Smm vec->zvec_secpolicy = secpolicy; 5309248571Smm vec->zvec_namecheck = namecheck; 5310248571Smm vec->zvec_allow_log = log_history; 5311248571Smm vec->zvec_pool_check = pool_check; 5312248571Smm} 5313248571Smm 5314248571Smm/* 5315248571Smm * See the block comment at the beginning of this file for details on 5316248571Smm * each argument to this function. 5317248571Smm */ 5318248571Smmstatic void 5319248571Smmzfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, 5320248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, 5321248571Smm zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, 5322248571Smm boolean_t allow_log) 5323248571Smm{ 5324248571Smm zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; 5325248571Smm 5326248571Smm ASSERT3U(ioc, >=, ZFS_IOC_FIRST); 5327248571Smm ASSERT3U(ioc, <, ZFS_IOC_LAST); 5328248571Smm ASSERT3P(vec->zvec_legacy_func, ==, NULL); 5329248571Smm ASSERT3P(vec->zvec_func, ==, NULL); 5330248571Smm 5331248571Smm /* if we are logging, the name must be valid */ 5332248571Smm ASSERT(!allow_log || namecheck != NO_NAME); 5333248571Smm 5334248571Smm vec->zvec_name = name; 5335248571Smm vec->zvec_func = func; 5336248571Smm vec->zvec_secpolicy = secpolicy; 5337248571Smm vec->zvec_namecheck = namecheck; 5338248571Smm vec->zvec_pool_check = pool_check; 5339248571Smm vec->zvec_smush_outnvlist = smush_outnvlist; 5340248571Smm vec->zvec_allow_log = allow_log; 5341248571Smm} 5342248571Smm 5343248571Smmstatic void 5344248571Smmzfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5345248571Smm zfs_secpolicy_func_t *secpolicy, boolean_t log_history, 5346248571Smm zfs_ioc_poolcheck_t pool_check) 5347248571Smm{ 5348248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5349248571Smm POOL_NAME, log_history, pool_check); 5350248571Smm} 5351248571Smm 5352248571Smmstatic void 5353248571Smmzfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5354248571Smm zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) 5355248571Smm{ 5356248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5357248571Smm DATASET_NAME, B_FALSE, pool_check); 5358248571Smm} 5359248571Smm 5360248571Smmstatic void 5361248571Smmzfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 5362248571Smm{ 5363248571Smm zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, 5364248571Smm POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5365248571Smm} 5366248571Smm 5367248571Smmstatic void 5368248571Smmzfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5369248571Smm zfs_secpolicy_func_t *secpolicy) 5370248571Smm{ 5371248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5372248571Smm NO_NAME, B_FALSE, POOL_CHECK_NONE); 5373248571Smm} 5374248571Smm 5375248571Smmstatic void 5376248571Smmzfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, 5377248571Smm zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) 5378248571Smm{ 5379248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5380248571Smm DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); 5381248571Smm} 5382248571Smm 5383248571Smmstatic void 5384248571Smmzfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) 5385248571Smm{ 5386248571Smm zfs_ioctl_register_dataset_read_secpolicy(ioc, func, 5387248571Smm zfs_secpolicy_read); 5388248571Smm} 5389248571Smm 5390248571Smmstatic void 5391248571Smmzfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, 5392248571Smm zfs_secpolicy_func_t *secpolicy) 5393248571Smm{ 5394248571Smm zfs_ioctl_register_legacy(ioc, func, secpolicy, 5395248571Smm DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5396248571Smm} 5397248571Smm 5398248571Smmstatic void 5399248571Smmzfs_ioctl_init(void) 5400248571Smm{ 5401248571Smm zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, 5402248571Smm zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, 5403248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5404248571Smm 5405248571Smm zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, 5406248571Smm zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, 5407248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); 5408248571Smm 5409248571Smm zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, 5410248571Smm zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, 5411248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5412248571Smm 5413248571Smm zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, 5414248571Smm zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, 5415248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5416248571Smm 5417248571Smm zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, 5418248571Smm zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, 5419248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5420248571Smm 5421248571Smm zfs_ioctl_register("create", ZFS_IOC_CREATE, 5422248571Smm zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, 5423248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5424248571Smm 5425248571Smm zfs_ioctl_register("clone", ZFS_IOC_CLONE, 5426248571Smm zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, 5427248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5428248571Smm 5429248571Smm zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, 5430248571Smm zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, 5431248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5432248571Smm 5433248571Smm zfs_ioctl_register("hold", ZFS_IOC_HOLD, 5434248571Smm zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, 5435248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5436248571Smm zfs_ioctl_register("release", ZFS_IOC_RELEASE, 5437248571Smm zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, 5438248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); 5439248571Smm 5440248571Smm zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, 5441248571Smm zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, 5442248571Smm POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); 5443248571Smm 5444248571Smm /* IOCTLS that use the legacy function signature */ 5445248571Smm 5446248571Smm zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, 5447248571Smm zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); 5448248571Smm 5449248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, 5450248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5451248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, 5452248571Smm zfs_ioc_pool_scan); 5453248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, 5454248571Smm zfs_ioc_pool_upgrade); 5455248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, 5456248571Smm zfs_ioc_vdev_add); 5457248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, 5458248571Smm zfs_ioc_vdev_remove); 5459248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, 5460248571Smm zfs_ioc_vdev_set_state); 5461248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, 5462248571Smm zfs_ioc_vdev_attach); 5463248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, 5464248571Smm zfs_ioc_vdev_detach); 5465248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, 5466248571Smm zfs_ioc_vdev_setpath); 5467248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, 5468248571Smm zfs_ioc_vdev_setfru); 5469248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, 5470248571Smm zfs_ioc_pool_set_props); 5471248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, 5472248571Smm zfs_ioc_vdev_split); 5473248571Smm zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, 5474248571Smm zfs_ioc_pool_reguid); 5475248571Smm 5476248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, 5477248571Smm zfs_ioc_pool_configs, zfs_secpolicy_none); 5478248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, 5479248571Smm zfs_ioc_pool_tryimport, zfs_secpolicy_config); 5480248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, 5481248571Smm zfs_ioc_inject_fault, zfs_secpolicy_inject); 5482248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, 5483248571Smm zfs_ioc_clear_fault, zfs_secpolicy_inject); 5484248571Smm zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, 5485248571Smm zfs_ioc_inject_list_next, zfs_secpolicy_inject); 5486248571Smm 5487248571Smm /* 5488248571Smm * pool destroy, and export don't log the history as part of 5489248571Smm * zfsdev_ioctl, but rather zfs_ioc_pool_export 5490248571Smm * does the logging of those commands. 5491248571Smm */ 5492248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, 5493248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 5494248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, 5495248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); 5496248571Smm 5497248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, 5498248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 5499248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, 5500248571Smm zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); 5501248571Smm 5502248571Smm zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, 5503248571Smm zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); 5504248571Smm zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, 5505248571Smm zfs_ioc_dsobj_to_dsname, 5506248571Smm zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); 5507248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, 5508248571Smm zfs_ioc_pool_get_history, 5509248571Smm zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); 5510248571Smm 5511248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, 5512248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); 5513248571Smm 5514248571Smm zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, 5515248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); 5516248571Smm zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, 5517248571Smm zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); 5518248571Smm 5519248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, 5520248571Smm zfs_ioc_space_written); 5521248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, 5522248571Smm zfs_ioc_objset_recvd_props); 5523248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, 5524248571Smm zfs_ioc_next_obj); 5525248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, 5526248571Smm zfs_ioc_get_fsacl); 5527248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, 5528248571Smm zfs_ioc_objset_stats); 5529248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, 5530248571Smm zfs_ioc_objset_zplprops); 5531248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, 5532248571Smm zfs_ioc_dataset_list_next); 5533248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, 5534248571Smm zfs_ioc_snapshot_list_next); 5535248571Smm zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, 5536248571Smm zfs_ioc_send_progress); 5537248571Smm 5538248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, 5539248571Smm zfs_ioc_diff, zfs_secpolicy_diff); 5540248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, 5541248571Smm zfs_ioc_obj_to_stats, zfs_secpolicy_diff); 5542248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, 5543248571Smm zfs_ioc_obj_to_path, zfs_secpolicy_diff); 5544248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, 5545248571Smm zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); 5546248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, 5547248571Smm zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); 5548248571Smm zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, 5549248571Smm zfs_ioc_send, zfs_secpolicy_send); 5550248571Smm 5551248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, 5552248571Smm zfs_secpolicy_none); 5553248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, 5554248571Smm zfs_secpolicy_destroy); 5555248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_ROLLBACK, zfs_ioc_rollback, 5556248571Smm zfs_secpolicy_rollback); 5557248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, 5558248571Smm zfs_secpolicy_rename); 5559248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, 5560248571Smm zfs_secpolicy_recv); 5561248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, 5562248571Smm zfs_secpolicy_promote); 5563248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, 5564248571Smm zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); 5565248571Smm zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, 5566248571Smm zfs_secpolicy_set_fsacl); 5567248571Smm 5568248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, 5569248571Smm zfs_secpolicy_share, POOL_CHECK_NONE); 5570248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, 5571248571Smm zfs_secpolicy_smb_acl, POOL_CHECK_NONE); 5572248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, 5573248571Smm zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, 5574248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5575248571Smm zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, 5576248571Smm zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, 5577248571Smm POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); 5578248571Smm} 5579248571Smm 5580209962Smmint 5581246688Smmpool_status_check(const char *name, zfs_ioc_namecheck_t type, 5582246688Smm zfs_ioc_poolcheck_t check) 5583209962Smm{ 5584209962Smm spa_t *spa; 5585209962Smm int error; 5586209962Smm 5587209962Smm ASSERT(type == POOL_NAME || type == DATASET_NAME); 5588209962Smm 5589246688Smm if (check & POOL_CHECK_NONE) 5590246688Smm return (0); 5591246688Smm 5592209962Smm error = spa_open(name, &spa, FTAG); 5593209962Smm if (error == 0) { 5594246688Smm if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) 5595249195Smm error = SET_ERROR(EAGAIN); 5596246688Smm else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) 5597249195Smm error = SET_ERROR(EROFS); 5598209962Smm spa_close(spa, FTAG); 5599209962Smm } 5600209962Smm return (error); 5601209962Smm} 5602209962Smm 5603219089Spjd/* 5604219089Spjd * Find a free minor number. 5605219089Spjd */ 5606219089Spjdminor_t 5607219089Spjdzfsdev_minor_alloc(void) 5608219089Spjd{ 5609219089Spjd static minor_t last_minor; 5610219089Spjd minor_t m; 5611219089Spjd 5612224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5613219089Spjd 5614219089Spjd for (m = last_minor + 1; m != last_minor; m++) { 5615219089Spjd if (m > ZFSDEV_MAX_MINOR) 5616219089Spjd m = 1; 5617219089Spjd if (ddi_get_soft_state(zfsdev_state, m) == NULL) { 5618219089Spjd last_minor = m; 5619219089Spjd return (m); 5620219089Spjd } 5621219089Spjd } 5622219089Spjd 5623219089Spjd return (0); 5624219089Spjd} 5625219089Spjd 5626168404Spjdstatic int 5627219089Spjdzfs_ctldev_init(struct cdev *devp) 5628219089Spjd{ 5629219089Spjd minor_t minor; 5630219089Spjd zfs_soft_state_t *zs; 5631219089Spjd 5632224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5633219089Spjd 5634219089Spjd minor = zfsdev_minor_alloc(); 5635219089Spjd if (minor == 0) 5636249195Smm return (SET_ERROR(ENXIO)); 5637219089Spjd 5638219089Spjd if (ddi_soft_state_zalloc(zfsdev_state, minor) != DDI_SUCCESS) 5639249195Smm return (SET_ERROR(EAGAIN)); 5640219089Spjd 5641219089Spjd devfs_set_cdevpriv((void *)(uintptr_t)minor, zfsdev_close); 5642219089Spjd 5643219089Spjd zs = ddi_get_soft_state(zfsdev_state, minor); 5644219089Spjd zs->zss_type = ZSST_CTLDEV; 5645219089Spjd zfs_onexit_init((zfs_onexit_t **)&zs->zss_data); 5646219089Spjd 5647219089Spjd return (0); 5648219089Spjd} 5649219089Spjd 5650219089Spjdstatic void 5651219089Spjdzfs_ctldev_destroy(zfs_onexit_t *zo, minor_t minor) 5652219089Spjd{ 5653224791Spjd ASSERT(MUTEX_HELD(&spa_namespace_lock)); 5654219089Spjd 5655219089Spjd zfs_onexit_destroy(zo); 5656219089Spjd ddi_soft_state_free(zfsdev_state, minor); 5657219089Spjd} 5658219089Spjd 5659219089Spjdvoid * 5660219089Spjdzfsdev_get_soft_state(minor_t minor, enum zfs_soft_state_type which) 5661219089Spjd{ 5662219089Spjd zfs_soft_state_t *zp; 5663219089Spjd 5664219089Spjd zp = ddi_get_soft_state(zfsdev_state, minor); 5665219089Spjd if (zp == NULL || zp->zss_type != which) 5666219089Spjd return (NULL); 5667219089Spjd 5668219089Spjd return (zp->zss_data); 5669219089Spjd} 5670219089Spjd 5671219089Spjdstatic int 5672219089Spjdzfsdev_open(struct cdev *devp, int flag, int mode, struct thread *td) 5673219089Spjd{ 5674219089Spjd int error = 0; 5675219089Spjd 5676219089Spjd#ifdef sun 5677219089Spjd if (getminor(*devp) != 0) 5678219089Spjd return (zvol_open(devp, flag, otyp, cr)); 5679219089Spjd#endif 5680219089Spjd 5681219089Spjd /* This is the control device. Allocate a new minor if requested. */ 5682219089Spjd if (flag & FEXCL) { 5683224791Spjd mutex_enter(&spa_namespace_lock); 5684219089Spjd error = zfs_ctldev_init(devp); 5685224791Spjd mutex_exit(&spa_namespace_lock); 5686219089Spjd } 5687219089Spjd 5688219089Spjd return (error); 5689219089Spjd} 5690219089Spjd 5691219089Spjdstatic void 5692219089Spjdzfsdev_close(void *data) 5693219089Spjd{ 5694219089Spjd zfs_onexit_t *zo; 5695219089Spjd minor_t minor = (minor_t)(uintptr_t)data; 5696219089Spjd 5697219089Spjd if (minor == 0) 5698219089Spjd return; 5699219089Spjd 5700224791Spjd mutex_enter(&spa_namespace_lock); 5701219089Spjd zo = zfsdev_get_soft_state(minor, ZSST_CTLDEV); 5702219089Spjd if (zo == NULL) { 5703224791Spjd mutex_exit(&spa_namespace_lock); 5704219089Spjd return; 5705219089Spjd } 5706219089Spjd zfs_ctldev_destroy(zo, minor); 5707224791Spjd mutex_exit(&spa_namespace_lock); 5708219089Spjd} 5709219089Spjd 5710219089Spjdstatic int 5711248571Smmzfsdev_ioctl(struct cdev *dev, u_long zcmd, caddr_t arg, int flag, 5712168404Spjd struct thread *td) 5713168404Spjd{ 5714219089Spjd zfs_cmd_t *zc; 5715248571Smm uint_t vecnum; 5716249319Smm int error, rc, len; 5717249004Smm#ifdef illumos 5718248571Smm minor_t minor = getminor(dev); 5719248571Smm#else 5720249319Smm zfs_iocparm_t *zc_iocparm; 5721249319Smm int cflag, cmd, oldvecnum; 5722249319Smm boolean_t newioc, compat; 5723248571Smm cred_t *cr = td->td_ucred; 5724248571Smm#endif 5725248571Smm const zfs_ioc_vec_t *vec; 5726248571Smm char *saved_poolname = NULL; 5727248571Smm nvlist_t *innvl = NULL; 5728168404Spjd 5729219089Spjd cflag = ZFS_CMD_COMPAT_NONE; 5730249319Smm compat = B_FALSE; 5731249319Smm newioc = B_TRUE; 5732249319Smm 5733248571Smm len = IOCPARM_LEN(zcmd); 5734248571Smm cmd = zcmd & 0xff; 5735219089Spjd 5736214854Sdelphij /* 5737247540Smm * Check if we are talking to supported older binaries 5738247540Smm * and translate zfs_cmd if necessary 5739214854Sdelphij */ 5740249319Smm if (len != sizeof(zfs_iocparm_t)) { 5741249319Smm newioc = B_FALSE; 5742249319Smm if (len == sizeof(zfs_cmd_t)) { 5743249319Smm cflag = ZFS_CMD_COMPAT_LZC; 5744249319Smm vecnum = cmd; 5745249319Smm } else if (len == sizeof(zfs_cmd_deadman_t)) { 5746248571Smm cflag = ZFS_CMD_COMPAT_DEADMAN; 5747249319Smm compat = B_TRUE; 5748248571Smm vecnum = cmd; 5749248571Smm } else if (len == sizeof(zfs_cmd_v28_t)) { 5750247540Smm cflag = ZFS_CMD_COMPAT_V28; 5751249319Smm compat = B_TRUE; 5752248571Smm vecnum = cmd; 5753247540Smm } else if (len == sizeof(zfs_cmd_v15_t)) { 5754219089Spjd cflag = ZFS_CMD_COMPAT_V15; 5755249319Smm compat = B_TRUE; 5756248571Smm vecnum = zfs_ioctl_v15_to_v28[cmd]; 5757219089Spjd } else 5758219089Spjd return (EINVAL); 5759249319Smm } else 5760248571Smm vecnum = cmd; 5761214854Sdelphij 5762248571Smm#ifdef illumos 5763248571Smm vecnum = cmd - ZFS_IOC_FIRST; 5764248571Smm ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip)); 5765248571Smm#endif 5766248571Smm 5767249319Smm if (compat) { 5768248571Smm if (vecnum == ZFS_IOC_COMPAT_PASS) 5769219089Spjd return (0); 5770248571Smm else if (vecnum == ZFS_IOC_COMPAT_FAIL) 5771219089Spjd return (ENOTSUP); 5772219089Spjd } 5773168404Spjd 5774247540Smm /* 5775247540Smm * Check if we have sufficient kernel memory allocated 5776247540Smm * for the zfs_cmd_t request. Bail out if not so we 5777247540Smm * will not access undefined memory region. 5778247540Smm */ 5779248571Smm if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) 5780249195Smm return (SET_ERROR(EINVAL)); 5781248571Smm vec = &zfs_ioc_vec[vecnum]; 5782168404Spjd 5783248571Smm#ifdef illumos 5784248571Smm zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 5785248571Smm bzero(zc, sizeof(zfs_cmd_t)); 5786248571Smm 5787248571Smm error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); 5788248571Smm if (error != 0) { 5789249195Smm error = SET_ERROR(EFAULT); 5790248571Smm goto out; 5791248571Smm } 5792249319Smm#else /* !illumos */ 5793249319Smm /* 5794249319Smm * We don't alloc/free zc only if talking to library ioctl version 2 5795249319Smm */ 5796249319Smm if (cflag != ZFS_CMD_COMPAT_LZC) { 5797219089Spjd zc = kmem_zalloc(sizeof(zfs_cmd_t), KM_SLEEP); 5798219089Spjd bzero(zc, sizeof(zfs_cmd_t)); 5799249319Smm } else { 5800249319Smm zc = (void *)arg; 5801249319Smm error = 0; 5802249319Smm } 5803249319Smm 5804249319Smm if (newioc) { 5805249319Smm zc_iocparm = (void *)arg; 5806249319Smm if (zc_iocparm->zfs_cmd_size != sizeof(zfs_cmd_t)) { 5807249319Smm error = SET_ERROR(EFAULT); 5808249319Smm goto out; 5809249319Smm } 5810249319Smm error = ddi_copyin((void *)zc_iocparm->zfs_cmd, zc, 5811249319Smm sizeof(zfs_cmd_t), flag); 5812249319Smm if (error != 0) { 5813249319Smm error = SET_ERROR(EFAULT); 5814249319Smm goto out; 5815249319Smm } 5816249319Smm } 5817249319Smm 5818249319Smm if (compat) { 5819248571Smm zfs_cmd_compat_get(zc, arg, cflag); 5820248571Smm oldvecnum = vecnum; 5821248571Smm error = zfs_ioctl_compat_pre(zc, &vecnum, cflag); 5822248571Smm if (error != 0) 5823248571Smm goto out; 5824248571Smm if (oldvecnum != vecnum) 5825248571Smm vec = &zfs_ioc_vec[vecnum]; 5826249319Smm } 5827249319Smm#endif /* !illumos */ 5828248571Smm 5829248571Smm zc->zc_iflags = flag & FKIOCTL; 5830248571Smm if (zc->zc_nvlist_src_size != 0) { 5831248571Smm error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, 5832248571Smm zc->zc_iflags, &innvl); 5833248571Smm if (error != 0) 5834248571Smm goto out; 5835219089Spjd } 5836219089Spjd 5837248571Smm /* rewrite innvl for backwards compatibility */ 5838249319Smm if (compat) 5839248571Smm innvl = zfs_ioctl_compat_innvl(zc, innvl, vecnum, cflag); 5840168404Spjd 5841168404Spjd /* 5842168404Spjd * Ensure that all pool/dataset names are valid before we pass down to 5843168404Spjd * the lower layers. 5844168404Spjd */ 5845248571Smm zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; 5846248571Smm switch (vec->zvec_namecheck) { 5847248571Smm case POOL_NAME: 5848248571Smm if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) 5849249195Smm error = SET_ERROR(EINVAL); 5850248571Smm else 5851248571Smm error = pool_status_check(zc->zc_name, 5852248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 5853248571Smm break; 5854168404Spjd 5855248571Smm case DATASET_NAME: 5856248571Smm if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) 5857249195Smm error = SET_ERROR(EINVAL); 5858248571Smm else 5859248571Smm error = pool_status_check(zc->zc_name, 5860248571Smm vec->zvec_namecheck, vec->zvec_pool_check); 5861248571Smm break; 5862168404Spjd 5863248571Smm case NO_NAME: 5864248571Smm break; 5865168404Spjd } 5866168404Spjd 5867248571Smm if (error == 0 && !(flag & FKIOCTL)) 5868248571Smm error = vec->zvec_secpolicy(zc, innvl, cr); 5869168404Spjd 5870248571Smm if (error != 0) 5871248571Smm goto out; 5872248571Smm 5873248571Smm /* legacy ioctls can modify zc_name */ 5874248571Smm len = strcspn(zc->zc_name, "/@") + 1; 5875248571Smm saved_poolname = kmem_alloc(len, KM_SLEEP); 5876248571Smm (void) strlcpy(saved_poolname, zc->zc_name, len); 5877248571Smm 5878248571Smm if (vec->zvec_func != NULL) { 5879248571Smm nvlist_t *outnvl; 5880248571Smm int puterror = 0; 5881248571Smm spa_t *spa; 5882248571Smm nvlist_t *lognv = NULL; 5883248571Smm 5884248571Smm ASSERT(vec->zvec_legacy_func == NULL); 5885248571Smm 5886248571Smm /* 5887248571Smm * Add the innvl to the lognv before calling the func, 5888248571Smm * in case the func changes the innvl. 5889248571Smm */ 5890248571Smm if (vec->zvec_allow_log) { 5891248571Smm lognv = fnvlist_alloc(); 5892248571Smm fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, 5893248571Smm vec->zvec_name); 5894248571Smm if (!nvlist_empty(innvl)) { 5895248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, 5896248571Smm innvl); 5897248571Smm } 5898248571Smm } 5899248571Smm 5900248571Smm outnvl = fnvlist_alloc(); 5901248571Smm error = vec->zvec_func(zc->zc_name, innvl, outnvl); 5902248571Smm 5903248571Smm if (error == 0 && vec->zvec_allow_log && 5904248571Smm spa_open(zc->zc_name, &spa, FTAG) == 0) { 5905248571Smm if (!nvlist_empty(outnvl)) { 5906248571Smm fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, 5907248571Smm outnvl); 5908248571Smm } 5909248571Smm (void) spa_history_log_nvl(spa, lognv); 5910248571Smm spa_close(spa, FTAG); 5911248571Smm } 5912248571Smm fnvlist_free(lognv); 5913248571Smm 5914248571Smm /* rewrite outnvl for backwards compatibility */ 5915249319Smm if (cflag != ZFS_CMD_COMPAT_NONE && cflag != ZFS_CMD_COMPAT_LZC) 5916248571Smm outnvl = zfs_ioctl_compat_outnvl(zc, outnvl, vecnum, 5917248571Smm cflag); 5918248571Smm 5919248571Smm if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { 5920248571Smm int smusherror = 0; 5921248571Smm if (vec->zvec_smush_outnvlist) { 5922248571Smm smusherror = nvlist_smush(outnvl, 5923248571Smm zc->zc_nvlist_dst_size); 5924248571Smm } 5925248571Smm if (smusherror == 0) 5926248571Smm puterror = put_nvlist(zc, outnvl); 5927248571Smm } 5928248571Smm 5929248571Smm if (puterror != 0) 5930248571Smm error = puterror; 5931248571Smm 5932248571Smm nvlist_free(outnvl); 5933248571Smm } else { 5934248571Smm error = vec->zvec_legacy_func(zc); 5935196985Spjd } 5936185029Spjd 5937248571Smmout: 5938248571Smm nvlist_free(innvl); 5939249319Smm 5940249319Smm if (compat) { 5941249319Smm zfs_ioctl_compat_post(zc, cmd, cflag); 5942249319Smm zfs_cmd_compat_put(zc, arg, vecnum, cflag); 5943249319Smm } 5944249319Smm 5945249004Smm#ifdef illumos 5946249004Smm rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); 5947248571Smm if (error == 0 && rc != 0) 5948249195Smm error = SET_ERROR(EFAULT); 5949249319Smm#else 5950249319Smm if (newioc) { 5951249319Smm rc = ddi_copyout(zc, (void *)zc_iocparm->zfs_cmd, 5952249319Smm sizeof (zfs_cmd_t), flag); 5953249319Smm if (error == 0 && rc != 0) 5954249319Smm error = SET_ERROR(EFAULT); 5955249319Smm } 5956249004Smm#endif 5957248571Smm if (error == 0 && vec->zvec_allow_log) { 5958248571Smm char *s = tsd_get(zfs_allow_log_key); 5959248571Smm if (s != NULL) 5960248571Smm strfree(s); 5961248571Smm (void) tsd_set(zfs_allow_log_key, saved_poolname); 5962248571Smm } else { 5963248571Smm if (saved_poolname != NULL) 5964248571Smm strfree(saved_poolname); 5965248571Smm } 5966248571Smm 5967248571Smm#ifdef illumos 5968248571Smm kmem_free(zc, sizeof (zfs_cmd_t)); 5969249319Smm#else 5970249319Smm /* 5971249319Smm * We don't alloc/free zc only if talking to library ioctl version 2 5972249319Smm */ 5973249319Smm if (cflag != ZFS_CMD_COMPAT_LZC) 5974249319Smm kmem_free(zc, sizeof (zfs_cmd_t)); 5975248571Smm#endif 5976168404Spjd return (error); 5977168404Spjd} 5978168404Spjd 5979219089Spjd#ifdef sun 5980219089Spjdstatic int 5981219089Spjdzfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 5982219089Spjd{ 5983219089Spjd if (cmd != DDI_ATTACH) 5984219089Spjd return (DDI_FAILURE); 5985219089Spjd 5986219089Spjd if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, 5987219089Spjd DDI_PSEUDO, 0) == DDI_FAILURE) 5988219089Spjd return (DDI_FAILURE); 5989219089Spjd 5990219089Spjd zfs_dip = dip; 5991219089Spjd 5992219089Spjd ddi_report_dev(dip); 5993219089Spjd 5994219089Spjd return (DDI_SUCCESS); 5995219089Spjd} 5996219089Spjd 5997219089Spjdstatic int 5998219089Spjdzfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 5999219089Spjd{ 6000219089Spjd if (spa_busy() || zfs_busy() || zvol_busy()) 6001219089Spjd return (DDI_FAILURE); 6002219089Spjd 6003219089Spjd if (cmd != DDI_DETACH) 6004219089Spjd return (DDI_FAILURE); 6005219089Spjd 6006219089Spjd zfs_dip = NULL; 6007219089Spjd 6008219089Spjd ddi_prop_remove_all(dip); 6009219089Spjd ddi_remove_minor_node(dip, NULL); 6010219089Spjd 6011219089Spjd return (DDI_SUCCESS); 6012219089Spjd} 6013219089Spjd 6014219089Spjd/*ARGSUSED*/ 6015219089Spjdstatic int 6016219089Spjdzfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 6017219089Spjd{ 6018219089Spjd switch (infocmd) { 6019219089Spjd case DDI_INFO_DEVT2DEVINFO: 6020219089Spjd *result = zfs_dip; 6021219089Spjd return (DDI_SUCCESS); 6022219089Spjd 6023219089Spjd case DDI_INFO_DEVT2INSTANCE: 6024219089Spjd *result = (void *)0; 6025219089Spjd return (DDI_SUCCESS); 6026219089Spjd } 6027219089Spjd 6028219089Spjd return (DDI_FAILURE); 6029219089Spjd} 6030219089Spjd#endif /* sun */ 6031219089Spjd 6032168404Spjd/* 6033168404Spjd * OK, so this is a little weird. 6034168404Spjd * 6035168404Spjd * /dev/zfs is the control node, i.e. minor 0. 6036168404Spjd * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. 6037168404Spjd * 6038168404Spjd * /dev/zfs has basically nothing to do except serve up ioctls, 6039168404Spjd * so most of the standard driver entry points are in zvol.c. 6040168404Spjd */ 6041219089Spjd#ifdef sun 6042219089Spjdstatic struct cb_ops zfs_cb_ops = { 6043219089Spjd zfsdev_open, /* open */ 6044219089Spjd zfsdev_close, /* close */ 6045219089Spjd zvol_strategy, /* strategy */ 6046219089Spjd nodev, /* print */ 6047219089Spjd zvol_dump, /* dump */ 6048219089Spjd zvol_read, /* read */ 6049219089Spjd zvol_write, /* write */ 6050219089Spjd zfsdev_ioctl, /* ioctl */ 6051219089Spjd nodev, /* devmap */ 6052219089Spjd nodev, /* mmap */ 6053219089Spjd nodev, /* segmap */ 6054219089Spjd nochpoll, /* poll */ 6055219089Spjd ddi_prop_op, /* prop_op */ 6056219089Spjd NULL, /* streamtab */ 6057219089Spjd D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ 6058219089Spjd CB_REV, /* version */ 6059219089Spjd nodev, /* async read */ 6060219089Spjd nodev, /* async write */ 6061219089Spjd}; 6062219089Spjd 6063219089Spjdstatic struct dev_ops zfs_dev_ops = { 6064219089Spjd DEVO_REV, /* version */ 6065219089Spjd 0, /* refcnt */ 6066219089Spjd zfs_info, /* info */ 6067219089Spjd nulldev, /* identify */ 6068219089Spjd nulldev, /* probe */ 6069219089Spjd zfs_attach, /* attach */ 6070219089Spjd zfs_detach, /* detach */ 6071219089Spjd nodev, /* reset */ 6072219089Spjd &zfs_cb_ops, /* driver operations */ 6073219089Spjd NULL, /* no bus operations */ 6074219089Spjd NULL, /* power */ 6075219089Spjd ddi_quiesce_not_needed, /* quiesce */ 6076219089Spjd}; 6077219089Spjd 6078219089Spjdstatic struct modldrv zfs_modldrv = { 6079219089Spjd &mod_driverops, 6080219089Spjd "ZFS storage pool", 6081219089Spjd &zfs_dev_ops 6082219089Spjd}; 6083219089Spjd 6084219089Spjdstatic struct modlinkage modlinkage = { 6085219089Spjd MODREV_1, 6086219089Spjd (void *)&zfs_modlfs, 6087219089Spjd (void *)&zfs_modldrv, 6088219089Spjd NULL 6089219089Spjd}; 6090219089Spjd#endif /* sun */ 6091219089Spjd 6092168404Spjdstatic struct cdevsw zfs_cdevsw = { 6093168404Spjd .d_version = D_VERSION, 6094219089Spjd .d_open = zfsdev_open, 6095168404Spjd .d_ioctl = zfsdev_ioctl, 6096168404Spjd .d_name = ZFS_DEV_NAME 6097168404Spjd}; 6098168404Spjd 6099168404Spjdstatic void 6100248571Smmzfs_allow_log_destroy(void *arg) 6101248571Smm{ 6102248571Smm char *poolname = arg; 6103248571Smm strfree(poolname); 6104248571Smm} 6105248571Smm 6106248571Smmstatic void 6107168404Spjdzfsdev_init(void) 6108168404Spjd{ 6109185029Spjd zfsdev = make_dev(&zfs_cdevsw, 0x0, UID_ROOT, GID_OPERATOR, 0666, 6110168404Spjd ZFS_DEV_NAME); 6111168404Spjd} 6112168404Spjd 6113168404Spjdstatic void 6114168404Spjdzfsdev_fini(void) 6115168404Spjd{ 6116168404Spjd if (zfsdev != NULL) 6117168404Spjd destroy_dev(zfsdev); 6118168404Spjd} 6119168404Spjd 6120169929Spjdstatic struct root_hold_token *zfs_root_token; 6121196458Spjdstruct proc *zfsproc; 6122168404Spjd 6123219089Spjd#ifdef sun 6124219089Spjdint 6125219089Spjd_init(void) 6126219089Spjd{ 6127219089Spjd int error; 6128219089Spjd 6129219089Spjd spa_init(FREAD | FWRITE); 6130219089Spjd zfs_init(); 6131219089Spjd zvol_init(); 6132248571Smm zfs_ioctl_init(); 6133219089Spjd 6134219089Spjd if ((error = mod_install(&modlinkage)) != 0) { 6135219089Spjd zvol_fini(); 6136219089Spjd zfs_fini(); 6137219089Spjd spa_fini(); 6138219089Spjd return (error); 6139219089Spjd } 6140219089Spjd 6141219089Spjd tsd_create(&zfs_fsyncer_key, NULL); 6142248571Smm tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 6143248571Smm tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 6144219089Spjd 6145219089Spjd error = ldi_ident_from_mod(&modlinkage, &zfs_li); 6146219089Spjd ASSERT(error == 0); 6147219089Spjd mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 6148219089Spjd 6149219089Spjd return (0); 6150219089Spjd} 6151219089Spjd 6152219089Spjdint 6153219089Spjd_fini(void) 6154219089Spjd{ 6155219089Spjd int error; 6156219089Spjd 6157219089Spjd if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) 6158249195Smm return (SET_ERROR(EBUSY)); 6159219089Spjd 6160219089Spjd if ((error = mod_remove(&modlinkage)) != 0) 6161219089Spjd return (error); 6162219089Spjd 6163219089Spjd zvol_fini(); 6164219089Spjd zfs_fini(); 6165219089Spjd spa_fini(); 6166219089Spjd if (zfs_nfsshare_inited) 6167219089Spjd (void) ddi_modclose(nfs_mod); 6168219089Spjd if (zfs_smbshare_inited) 6169219089Spjd (void) ddi_modclose(smbsrv_mod); 6170219089Spjd if (zfs_nfsshare_inited || zfs_smbshare_inited) 6171219089Spjd (void) ddi_modclose(sharefs_mod); 6172219089Spjd 6173219089Spjd tsd_destroy(&zfs_fsyncer_key); 6174219089Spjd ldi_ident_release(zfs_li); 6175219089Spjd zfs_li = NULL; 6176219089Spjd mutex_destroy(&zfs_share_lock); 6177219089Spjd 6178219089Spjd return (error); 6179219089Spjd} 6180219089Spjd 6181219089Spjdint 6182219089Spjd_info(struct modinfo *modinfop) 6183219089Spjd{ 6184219089Spjd return (mod_info(&modlinkage, modinfop)); 6185219089Spjd} 6186219089Spjd#endif /* sun */ 6187219089Spjd 6188168404Spjdstatic int 6189168404Spjdzfs_modevent(module_t mod, int type, void *unused __unused) 6190168404Spjd{ 6191196291Spjd int error = 0; 6192168404Spjd 6193168404Spjd switch (type) { 6194168404Spjd case MOD_LOAD: 6195190878Sthompsa zfs_root_token = root_mount_hold("ZFS"); 6196196291Spjd 6197185029Spjd mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); 6198196291Spjd 6199196291Spjd spa_init(FREAD | FWRITE); 6200196291Spjd zfs_init(); 6201196291Spjd zvol_init(); 6202248571Smm zfs_ioctl_init(); 6203196291Spjd 6204196291Spjd tsd_create(&zfs_fsyncer_key, NULL); 6205248571Smm tsd_create(&rrw_tsd_key, rrw_tsd_destroy); 6206248571Smm tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); 6207196291Spjd 6208236884Smm printf("ZFS storage pool version: features support (" SPA_VERSION_STRING ")\n"); 6209196291Spjd root_mount_rel(zfs_root_token); 6210196291Spjd 6211196291Spjd zfsdev_init(); 6212168404Spjd break; 6213168404Spjd case MOD_UNLOAD: 6214168775Spjd if (spa_busy() || zfs_busy() || zvol_busy() || 6215168404Spjd zio_injection_enabled) { 6216168404Spjd error = EBUSY; 6217168404Spjd break; 6218168404Spjd } 6219196291Spjd 6220196291Spjd zfsdev_fini(); 6221168404Spjd zvol_fini(); 6222168404Spjd zfs_fini(); 6223168404Spjd spa_fini(); 6224196291Spjd 6225185029Spjd tsd_destroy(&zfs_fsyncer_key); 6226185029Spjd tsd_destroy(&rrw_tsd_key); 6227248571Smm tsd_destroy(&zfs_allow_log_key); 6228196291Spjd 6229185029Spjd mutex_destroy(&zfs_share_lock); 6230168404Spjd break; 6231196291Spjd default: 6232196291Spjd error = EOPNOTSUPP; 6233196291Spjd break; 6234168404Spjd } 6235168404Spjd return (error); 6236168404Spjd} 6237168404Spjd 6238168404Spjdstatic moduledata_t zfs_mod = { 6239168404Spjd "zfsctrl", 6240168404Spjd zfs_modevent, 6241241394Skevlo 0 6242168404Spjd}; 6243169929SpjdDECLARE_MODULE(zfsctrl, zfs_mod, SI_SUB_VFS, SI_ORDER_ANY); 6244246242SavgMODULE_VERSION(zfsctrl, 1); 6245179280SjbMODULE_DEPEND(zfsctrl, opensolaris, 1, 1, 1); 6246193128SkmacyMODULE_DEPEND(zfsctrl, krpc, 1, 1, 1); 6247232938SadrianMODULE_DEPEND(zfsctrl, acl_nfs4, 1, 1, 1); 6248