4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved.
25 * Portions Copyright 2011 Martin Matuska
26 * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
27 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved.
29 * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
32 * Copyright (c) 2014 Integros [integros.com]
33 * Copyright 2016 Toomas Soome <tsoome@me.com>
34 * Copyright 2017 RackTop Systems.
35 * Copyright (c) 2017 Datto Inc.
36 */
37
38 /*
39 * ZFS ioctls.
40 *
41 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
42 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
43 *
44 * There are two ways that we handle ioctls: the legacy way where almost
45 * all of the logic is in the ioctl callback, and the new way where most
46 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
47 *
48 * Non-legacy ioctls should be registered by calling
49 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
50 * from userland by lzc_ioctl().
51 *
52 * The registration arguments are as follows:
139 #include <sys/types.h>
140 #include <sys/param.h>
141 #include <sys/errno.h>
142 #include <sys/uio.h>
143 #include <sys/buf.h>
144 #include <sys/modctl.h>
145 #include <sys/open.h>
146 #include <sys/file.h>
147 #include <sys/kmem.h>
148 #include <sys/conf.h>
149 #include <sys/cmn_err.h>
150 #include <sys/stat.h>
151 #include <sys/zfs_ioctl.h>
152 #include <sys/zfs_vfsops.h>
153 #include <sys/zfs_znode.h>
154 #include <sys/zap.h>
155 #include <sys/spa.h>
156 #include <sys/spa_impl.h>
157 #include <sys/vdev.h>
158 #include <sys/priv_impl.h>
159 #include <sys/dmu.h>
160 #include <sys/dsl_dir.h>
161 #include <sys/dsl_dataset.h>
162 #include <sys/dsl_prop.h>
163 #include <sys/dsl_deleg.h>
164 #include <sys/dmu_objset.h>
165 #include <sys/dmu_impl.h>
166 #include <sys/dmu_tx.h>
167 #include <sys/ddi.h>
168 #include <sys/sunddi.h>
169 #include <sys/sunldi.h>
170 #include <sys/policy.h>
171 #include <sys/zone.h>
172 #include <sys/nvpair.h>
173 #include <sys/pathname.h>
174 #include <sys/mount.h>
175 #include <sys/sdt.h>
176 #include <sys/fs/zfs.h>
177 #include <sys/zfs_ctldir.h>
178 #include <sys/zfs_dir.h>
179 #include <sys/zfs_onexit.h>
180 #include <sys/zvol.h>
181 #include <sys/dsl_scan.h>
182 #include <sharefs/share.h>
183 #include <sys/dmu_objset.h>
184 #include <sys/dmu_send.h>
185 #include <sys/dsl_destroy.h>
186 #include <sys/dsl_bookmark.h>
187 #include <sys/dsl_userhold.h>
188 #include <sys/zfeature.h>
189 #include <sys/zcp.h>
190 #include <sys/zio_checksum.h>
191 #include <sys/vdev_removal.h>
192
193 #include "zfs_namecheck.h"
194 #include "zfs_prop.h"
195 #include "zfs_deleg.h"
196 #include "zfs_comutil.h"
197
198 #include "lua.h"
199 #include "lauxlib.h"
200
201 extern struct modlfs zfs_modlfs;
202
203 extern void zfs_init(void);
204 extern void zfs_fini(void);
205
206 ldi_ident_t zfs_li = NULL;
207 dev_info_t *zfs_dip;
208
209 uint_t zfs_fsyncer_key;
210 extern uint_t rrw_tsd_key;
211 static uint_t zfs_allow_log_key;
212
213 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
214 typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *);
215 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *);
216
240 /* This array is indexed by zfs_userquota_prop_t */
241 static const char *userquota_perms[] = {
242 ZFS_DELEG_PERM_USERUSED,
243 ZFS_DELEG_PERM_USERQUOTA,
244 ZFS_DELEG_PERM_GROUPUSED,
245 ZFS_DELEG_PERM_GROUPQUOTA,
246 };
247
248 static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
249 static int zfs_check_settable(const char *name, nvpair_t *property,
250 cred_t *cr);
251 static int zfs_check_clearable(char *dataset, nvlist_t *props,
252 nvlist_t **errors);
253 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
254 boolean_t *);
255 int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *);
256 static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp);
257
258 static int zfs_prop_activate_feature(spa_t *spa, spa_feature_t feature);
259
260 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
261 void
262 __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
263 {
264 const char *newfile;
265 char buf[512];
266 va_list adx;
267
268 /*
269 * Get rid of annoying "../common/" prefix to filename.
270 */
271 newfile = strrchr(file, '/');
272 if (newfile != NULL) {
273 newfile = newfile + 1; /* Get rid of leading / */
274 } else {
275 newfile = file;
276 }
277
278 va_start(adx, fmt);
279 (void) vsnprintf(buf, sizeof (buf), fmt, adx);
755 NO_FOLLOW, NULL, &vp)) != 0)
756 return (error);
757
758 /* Now make sure mntpnt and dataset are ZFS */
759
760 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
761 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
762 zc->zc_name) != 0)) {
763 VN_RELE(vp);
764 return (SET_ERROR(EPERM));
765 }
766
767 VN_RELE(vp);
768 return (dsl_deleg_access(zc->zc_name,
769 ZFS_DELEG_PERM_SHARE, cr));
770 }
771
772 int
773 zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
774 {
775 if (!INGLOBALZONE(curproc))
776 return (SET_ERROR(EPERM));
777
778 if (secpolicy_nfs(cr) == 0) {
779 return (0);
780 } else {
781 return (zfs_secpolicy_deleg_share(zc, innvl, cr));
782 }
783 }
784
785 int
786 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
787 {
788 if (!INGLOBALZONE(curproc))
789 return (SET_ERROR(EPERM));
790
791 if (secpolicy_smb(cr) == 0) {
792 return (0);
793 } else {
794 return (zfs_secpolicy_deleg_share(zc, innvl, cr));
795 }
796 }
797
798 static int
799 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
800 {
801 char *cp;
802
803 /*
804 * Remove the @bla or /bla from the end of the name to get the parent.
805 */
806 (void) strncpy(parent, datasetname, parentsize);
807 cp = strrchr(parent, '@');
808 if (cp != NULL) {
809 cp[0] = '\0';
810 } else {
1026 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
1027 char *name = nvpair_name(pair);
1028 char *hashp = strchr(name, '#');
1029
1030 if (hashp == NULL) {
1031 error = SET_ERROR(EINVAL);
1032 break;
1033 }
1034 *hashp = '\0';
1035 error = zfs_secpolicy_write_perms(name,
1036 ZFS_DELEG_PERM_BOOKMARK, cr);
1037 *hashp = '#';
1038 if (error != 0)
1039 break;
1040 }
1041 return (error);
1042 }
1043
1044 /* ARGSUSED */
1045 static int
1046 zfs_secpolicy_remap(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1047 {
1048 return (zfs_secpolicy_write_perms(zc->zc_name,
1049 ZFS_DELEG_PERM_REMAP, cr));
1050 }
1051
1052 /* ARGSUSED */
1053 static int
1054 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1055 {
1056 nvpair_t *pair, *nextpair;
1057 int error = 0;
1058
1059 for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
1060 pair = nextpair) {
1061 char *name = nvpair_name(pair);
1062 char *hashp = strchr(name, '#');
1063 nextpair = nvlist_next_nvpair(innvl, pair);
1064
1065 if (hashp == NULL) {
1066 error = SET_ERROR(EINVAL);
1067 break;
1068 }
1069
1070 *hashp = '\0';
1071 error = zfs_secpolicy_write_perms(name,
1072 ZFS_DELEG_PERM_DESTROY, cr);
1073 *hashp = '#';
1366
1367 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0);
1368 more_errors = nvlist_prev_nvpair(errors, NULL);
1369
1370 do {
1371 nvpair_t *pair = nvlist_prev_nvpair(errors,
1372 more_errors);
1373 fnvlist_remove_nvpair(errors, pair);
1374 n++;
1375 size = fnvlist_size(errors);
1376 } while (size > max);
1377
1378 fnvlist_remove_nvpair(errors, more_errors);
1379 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n);
1380 ASSERT3U(fnvlist_size(errors), <=, max);
1381 }
1382
1383 return (0);
1384 }
1385
1386 static int
1387 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
1388 {
1389 char *packed = NULL;
1390 int error = 0;
1391 size_t size;
1392
1393 size = fnvlist_size(nvl);
1394
1395 if (size > zc->zc_nvlist_dst_size) {
1396 error = SET_ERROR(ENOMEM);
1397 } else {
1398 packed = fnvlist_pack(nvl, &size);
1399 if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
1400 size, zc->zc_iflags) != 0)
1401 error = SET_ERROR(EFAULT);
1402 fnvlist_pack_free(packed, size);
1403 }
1404
1405 zc->zc_nvlist_dst_size = size;
1406 zc->zc_nvlist_dst_filled = B_TRUE;
1407 return (error);
1408 }
1409
1410 int
1411 getzfsvfs_impl(objset_t *os, zfsvfs_t **zfvp)
1412 {
1413 int error = 0;
1414 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1415 return (SET_ERROR(EINVAL));
1416 }
1417
1418 mutex_enter(&os->os_user_ptr_lock);
1419 *zfvp = dmu_objset_get_user(os);
1420 if (*zfvp) {
1421 VFS_HOLD((*zfvp)->z_vfs);
1422 } else {
1423 error = SET_ERROR(ESRCH);
1424 }
1425 mutex_exit(&os->os_user_ptr_lock);
1426 return (error);
1427 }
1428
1429 int
1466 rrm_exit(&(*zfvp)->z_teardown_lock, tag);
1467 return (SET_ERROR(EBUSY));
1468 }
1469 }
1470 return (error);
1471 }
1472
1473 static void
1474 zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
1475 {
1476 rrm_exit(&zfsvfs->z_teardown_lock, tag);
1477
1478 if (zfsvfs->z_vfs) {
1479 VFS_RELE(zfsvfs->z_vfs);
1480 } else {
1481 dmu_objset_disown(zfsvfs->z_os, zfsvfs);
1482 zfsvfs_free(zfsvfs);
1483 }
1484 }
1485
1486 static int
1487 zfs_ioc_pool_create(zfs_cmd_t *zc)
1488 {
1489 int error;
1490 nvlist_t *config, *props = NULL;
1491 nvlist_t *rootprops = NULL;
1492 nvlist_t *zplprops = NULL;
1493
1494 if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1495 zc->zc_iflags, &config))
1496 return (error);
1497
1498 if (zc->zc_nvlist_src_size != 0 && (error =
1499 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1500 zc->zc_iflags, &props))) {
1501 nvlist_free(config);
1502 return (error);
1503 }
1504
1505 if (props) {
1506 nvlist_t *nvl = NULL;
1507 uint64_t version = SPA_VERSION;
1508
1509 (void) nvlist_lookup_uint64(props,
1510 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
1511 if (!SPA_VERSION_IS_SUPPORTED(version)) {
1512 error = SET_ERROR(EINVAL);
1521 return (error);
1522 }
1523 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
1524 }
1525 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1526 error = zfs_fill_zplprops_root(version, rootprops,
1527 zplprops, NULL);
1528 if (error != 0)
1529 goto pool_props_bad;
1530 }
1531
1532 error = spa_create(zc->zc_name, config, props, zplprops);
1533
1534 /*
1535 * Set the remaining root properties
1536 */
1537 if (!error && (error = zfs_set_prop_nvlist(zc->zc_name,
1538 ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
1539 (void) spa_destroy(zc->zc_name);
1540
1541 pool_props_bad:
1542 nvlist_free(rootprops);
1543 nvlist_free(zplprops);
1544 nvlist_free(config);
1545 nvlist_free(props);
1546
1547 return (error);
1548 }
1549
1550 static int
1551 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
1552 {
1553 int error;
1554 zfs_log_history(zc);
1555 error = spa_destroy(zc->zc_name);
1556 if (error == 0)
1557 zvol_remove_minors(zc->zc_name);
1558 return (error);
1559 }
1560
1561 static int
1562 zfs_ioc_pool_import(zfs_cmd_t *zc)
1563 {
1564 nvlist_t *config, *props = NULL;
1565 uint64_t guid;
1566 int error;
1567
1568 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1569 zc->zc_iflags, &config)) != 0)
1570 return (error);
1571
1572 if (zc->zc_nvlist_src_size != 0 && (error =
1573 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1574 zc->zc_iflags, &props))) {
1575 nvlist_free(config);
1576 return (error);
1577 }
1578
1579 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
1580 guid != zc->zc_guid)
1581 error = SET_ERROR(EINVAL);
1582 else
1583 error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
1584
1585 if (zc->zc_nvlist_dst != 0) {
1586 int err;
1587
1588 if ((err = put_nvlist(zc, config)) != 0)
1589 error = err;
1590 }
1591
1592 nvlist_free(config);
1593
1594 nvlist_free(props);
1595
1596 return (error);
1597 }
1598
1599 static int
1600 zfs_ioc_pool_export(zfs_cmd_t *zc)
1601 {
1602 int error;
1603 boolean_t force = (boolean_t)zc->zc_cookie;
1604 boolean_t hardforce = (boolean_t)zc->zc_guid;
1605
1606 zfs_log_history(zc);
1607 error = spa_export(zc->zc_name, NULL, force, hardforce);
1608 if (error == 0)
1609 zvol_remove_minors(zc->zc_name);
1610 return (error);
1611 }
1612
1613 static int
1614 zfs_ioc_pool_configs(zfs_cmd_t *zc)
1615 {
1616 nvlist_t *configs;
1617 int error;
1618
1619 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
1620 return (SET_ERROR(EEXIST));
1621
1622 error = put_nvlist(zc, configs);
1623
1624 nvlist_free(configs);
1625
1626 return (error);
1627 }
1628
1629 /*
1702 int error;
1703
1704 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1705 return (error);
1706
1707 if (zc->zc_flags >= POOL_SCRUB_FLAGS_END)
1708 return (SET_ERROR(EINVAL));
1709
1710 if (zc->zc_flags == POOL_SCRUB_PAUSE)
1711 error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE);
1712 else if (zc->zc_cookie == POOL_SCAN_NONE)
1713 error = spa_scan_stop(spa);
1714 else
1715 error = spa_scan(spa, zc->zc_cookie);
1716
1717 spa_close(spa, FTAG);
1718
1719 return (error);
1720 }
1721
1722 static int
1723 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
1724 {
1725 spa_t *spa;
1726 int error;
1727
1728 error = spa_open(zc->zc_name, &spa, FTAG);
1729 if (error == 0) {
1730 spa_freeze(spa);
1731 spa_close(spa, FTAG);
1732 }
1733 return (error);
1734 }
1735
1736 static int
1737 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
1738 {
1739 spa_t *spa;
1740 int error;
1741
1742 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1853 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1854 return (error);
1855 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1856 dmu_objset_rele(os, FTAG);
1857 return (SET_ERROR(EINVAL));
1858 }
1859 error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
1860 sizeof (zc->zc_value));
1861 dmu_objset_rele(os, FTAG);
1862
1863 return (error);
1864 }
1865
1866 static int
1867 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1868 {
1869 spa_t *spa;
1870 int error;
1871 nvlist_t *config, **l2cache, **spares;
1872 uint_t nl2cache = 0, nspares = 0;
1873
1874 error = spa_open(zc->zc_name, &spa, FTAG);
1875 if (error != 0)
1876 return (error);
1877
1878 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1879 zc->zc_iflags, &config);
1880 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
1881 &l2cache, &nl2cache);
1882
1883 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
1884 &spares, &nspares);
1885
1886 /*
1887 * A root pool with concatenated devices is not supported.
1888 * Thus, can not add a device to a root pool.
1889 *
1890 * Intent log device can not be added to a rootpool because
1891 * during mountroot, zil is replayed, a seperated log device
1892 * can not be accessed during the mountroot time.
1893 *
1894 * l2cache and spare devices are ok to be added to a rootpool.
1895 */
1896 if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) {
1897 nvlist_free(config);
1898 spa_close(spa, FTAG);
1899 return (SET_ERROR(EDOM));
1900 }
1901
1902 if (error == 0) {
1903 error = spa_vdev_add(spa, config);
1904 nvlist_free(config);
1905 }
1906 spa_close(spa, FTAG);
1907 return (error);
1908 }
1909
1910 /*
1911 * inputs:
1912 * zc_name name of the pool
1913 * zc_guid guid of vdev to remove
1914 * zc_cookie cancel removal
1915 */
1916 static int
1917 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1918 {
1919 spa_t *spa;
1920 int error;
1921
1922 error = spa_open(zc->zc_name, &spa, FTAG);
1923 if (error != 0)
1924 return (error);
1925 if (zc->zc_cookie != 0) {
1926 error = spa_vdev_remove_cancel(spa);
1927 } else {
1928 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1929 }
1930 spa_close(spa, FTAG);
1931 return (error);
1932 }
1933
1934 static int
1935 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1936 {
1937 spa_t *spa;
1938 int error;
1939 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1940
1941 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1942 return (error);
1943 switch (zc->zc_cookie) {
1944 case VDEV_STATE_ONLINE:
1945 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1946 break;
1947
1948 case VDEV_STATE_OFFLINE:
1949 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1950 break;
1951
1952 case VDEV_STATE_FAULTED:
1953 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1954 zc->zc_obj != VDEV_AUX_EXTERNAL)
1955 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1956
1957 error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
1958 break;
1959
1960 case VDEV_STATE_DEGRADED:
1961 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1962 zc->zc_obj != VDEV_AUX_EXTERNAL)
1963 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1964
1965 error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
1966 break;
1967
1968 default:
1969 error = SET_ERROR(EINVAL);
1970 }
1971 zc->zc_cookie = newstate;
1972 spa_close(spa, FTAG);
1973 return (error);
1974 }
1975
1976 static int
1977 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1978 {
1979 spa_t *spa;
1980 int replacing = zc->zc_cookie;
1981 nvlist_t *config;
1982 int error;
1983
1984 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1985 return (error);
1986
1987 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1988 zc->zc_iflags, &config)) == 0) {
1989 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1990 nvlist_free(config);
1991 }
1992
1993 spa_close(spa, FTAG);
1994 return (error);
1995 }
1996
1997 static int
1998 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1999 {
2000 spa_t *spa;
2001 int error;
2002
2003 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2004 return (error);
2005
2006 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
2007
2008 spa_close(spa, FTAG);
2009 return (error);
2010 }
2011
2012 static int
2013 zfs_ioc_vdev_split(zfs_cmd_t *zc)
2014 {
2015 spa_t *spa;
2016 nvlist_t *config, *props = NULL;
2017 int error;
2018 boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
2019
2020 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2021 return (error);
2022
2023 if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
2024 zc->zc_iflags, &config)) {
2025 spa_close(spa, FTAG);
2026 return (error);
2027 }
2028
2029 if (zc->zc_nvlist_src_size != 0 && (error =
2030 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2031 zc->zc_iflags, &props))) {
2032 spa_close(spa, FTAG);
2033 nvlist_free(config);
2034 return (error);
2035 }
2036
2037 error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
2038
2039 spa_close(spa, FTAG);
2040
2041 nvlist_free(config);
2042 nvlist_free(props);
2043
2044 return (error);
2045 }
2046
2047 static int
2048 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
2049 {
2050 spa_t *spa;
2051 char *path = zc->zc_value;
2052 uint64_t guid = zc->zc_guid;
2053 int error;
2054
2055 error = spa_open(zc->zc_name, &spa, FTAG);
2056 if (error != 0)
2057 return (error);
2058
2059 error = spa_vdev_setpath(spa, guid, path);
2060 spa_close(spa, FTAG);
2061 return (error);
2062 }
2063
2064 static int
2065 zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
2066 {
2067 spa_t *spa;
2106 error = put_nvlist(zc, nv);
2107 nvlist_free(nv);
2108 }
2109
2110 return (error);
2111 }
2112
2113 /*
2114 * inputs:
2115 * zc_name name of filesystem
2116 * zc_nvlist_dst_size size of buffer for property nvlist
2117 *
2118 * outputs:
2119 * zc_objset_stats stats
2120 * zc_nvlist_dst property nvlist
2121 * zc_nvlist_dst_size size of property nvlist
2122 */
2123 static int
2124 zfs_ioc_objset_stats(zfs_cmd_t *zc)
2125 {
2126 objset_t *os;
2127 int error;
2128
2129 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
2130 if (error == 0) {
2131 error = zfs_ioc_objset_stats_impl(zc, os);
2132 dmu_objset_rele(os, FTAG);
2133 }
2134
2135 return (error);
2136 }
2137
2138 /*
2139 * inputs:
2140 * zc_name name of filesystem
2141 * zc_nvlist_dst_size size of buffer for property nvlist
2142 *
2143 * outputs:
2144 * zc_nvlist_dst received property nvlist
2145 * zc_nvlist_dst_size size of received property nvlist
2146 *
2215 */
2216 if (zc->zc_nvlist_dst != NULL &&
2217 !zc->zc_objset_stats.dds_inconsistent &&
2218 dmu_objset_type(os) == DMU_OST_ZFS) {
2219 nvlist_t *nv;
2220
2221 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2222 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
2223 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
2224 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
2225 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
2226 err = put_nvlist(zc, nv);
2227 nvlist_free(nv);
2228 } else {
2229 err = SET_ERROR(ENOENT);
2230 }
2231 dmu_objset_rele(os, FTAG);
2232 return (err);
2233 }
2234
2235 static boolean_t
2236 dataset_name_hidden(const char *name)
2237 {
2238 /*
2239 * Skip over datasets that are not visible in this zone,
2240 * internal datasets (which have a $ in their name), and
2241 * temporary datasets (which have a % in their name).
2242 */
2243 if (strchr(name, '$') != NULL)
2244 return (B_TRUE);
2245 if (strchr(name, '%') != NULL)
2246 return (B_TRUE);
2247 if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL))
2248 return (B_TRUE);
2249 return (B_FALSE);
2250 }
2251
2252 /*
2253 * inputs:
2254 * zc_name name of filesystem
2255 * zc_cookie zap cursor
2256 * zc_nvlist_dst_size size of buffer for property nvlist
2257 *
2258 * outputs:
2259 * zc_name name of next filesystem
2260 * zc_cookie zap cursor
2261 * zc_objset_stats stats
2262 * zc_nvlist_dst property nvlist
2263 * zc_nvlist_dst_size size of property nvlist
2264 */
2265 static int
2266 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
2267 {
2268 objset_t *os;
2269 int error;
2270 char *p;
2271 size_t orig_len = strlen(zc->zc_name);
2504 err = -1;
2505 }
2506
2507 return (err);
2508 }
2509
2510 /*
2511 * This function is best effort. If it fails to set any of the given properties,
2512 * it continues to set as many as it can and returns the last error
2513 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2514 * with the list of names of all the properties that failed along with the
2515 * corresponding error numbers.
2516 *
2517 * If every property is set successfully, zero is returned and errlist is not
2518 * modified.
2519 */
2520 int
2521 zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
2522 nvlist_t *errlist)
2523 {
2524 nvpair_t *pair;
2525 nvpair_t *propval;
2526 int rv = 0;
2527 uint64_t intval;
2528 char *strval;
2529 nvlist_t *genericnvl = fnvlist_alloc();
2530 nvlist_t *retrynvl = fnvlist_alloc();
2531
2532 retry:
2533 pair = NULL;
2534 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2535 const char *propname = nvpair_name(pair);
2536 zfs_prop_t prop = zfs_name_to_prop(propname);
2537 int err = 0;
2538
2539 /* decode the property value */
2540 propval = pair;
2541 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2542 nvlist_t *attrs;
2543 attrs = fnvpair_value_nvlist(pair);
2544 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2545 &propval) != 0)
2546 err = SET_ERROR(EINVAL);
2547 }
2548
2549 /* Validate value type */
2550 if (err == 0 && prop == ZPROP_INVAL) {
2551 if (zfs_prop_user(propname)) {
2552 if (nvpair_type(propval) != DATA_TYPE_STRING)
2553 err = SET_ERROR(EINVAL);
2554 } else if (zfs_prop_userquota(propname)) {
2555 if (nvpair_type(propval) !=
2556 DATA_TYPE_UINT64_ARRAY)
2557 err = SET_ERROR(EINVAL);
2558 } else {
2604 * This may be a spurious error caused by
2605 * receiving quota and reservation out of order.
2606 * Try again in a second pass.
2607 */
2608 err = nvlist_add_nvpair(retrynvl, pair);
2609 }
2610 }
2611
2612 if (err != 0) {
2613 if (errlist != NULL)
2614 fnvlist_add_int32(errlist, propname, err);
2615 rv = err;
2616 }
2617 }
2618
2619 if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
2620 nvl = retrynvl;
2621 goto retry;
2622 }
2623
2624 if (!nvlist_empty(genericnvl) &&
2625 dsl_props_set(dsname, source, genericnvl) != 0) {
2626 /*
2627 * If this fails, we still want to set as many properties as we
2628 * can, so try setting them individually.
2629 */
2630 pair = NULL;
2631 while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
2632 const char *propname = nvpair_name(pair);
2633 int err = 0;
2634
2635 propval = pair;
2636 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2637 nvlist_t *attrs;
2638 attrs = fnvpair_value_nvlist(pair);
2639 propval = fnvlist_lookup_nvpair(attrs,
2640 ZPROP_VALUE);
2641 }
2642
2643 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2645 err = dsl_prop_set_string(dsname, propname,
2646 source, strval);
2647 } else {
2648 intval = fnvpair_value_uint64(propval);
2649 err = dsl_prop_set_int(dsname, propname, source,
2650 intval);
2651 }
2652
2653 if (err != 0) {
2654 if (errlist != NULL) {
2655 fnvlist_add_int32(errlist, propname,
2656 err);
2657 }
2658 rv = err;
2659 }
2660 }
2661 }
2662 nvlist_free(genericnvl);
2663 nvlist_free(retrynvl);
2664
2665 return (rv);
2666 }
2667
2668 /*
2669 * Check that all the properties are valid user properties.
2670 */
2671 static int
2672 zfs_check_userprops(const char *fsname, nvlist_t *nvl)
2673 {
2674 nvpair_t *pair = NULL;
2675 int error = 0;
2676
2677 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2678 const char *propname = nvpair_name(pair);
2679
2680 if (!zfs_prop_user(propname) ||
2681 nvpair_type(pair) != DATA_TYPE_STRING)
2682 return (SET_ERROR(EINVAL));
2683
2684 if (error = zfs_secpolicy_write_perms(fsname,
2685 ZFS_DELEG_PERM_USERPROP, CRED()))
2686 return (error);
2687
2688 if (strlen(propname) >= ZAP_MAXNAMELEN)
2689 return (SET_ERROR(ENAMETOOLONG));
2690
2691 if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN)
2692 return (E2BIG);
2693 }
2694 return (0);
2695 }
2696
2697 static void
2698 props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
2699 {
2700 nvpair_t *pair;
2701
2702 VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2703
2704 pair = NULL;
2705 while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
2706 if (nvlist_exists(skipped, nvpair_name(pair)))
2707 continue;
2708
2709 VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
2710 }
2711 }
2712
2713 static int
2714 clear_received_props(const char *dsname, nvlist_t *props,
2715 nvlist_t *skipped)
2716 {
2717 int err = 0;
2718 nvlist_t *cleared_props = NULL;
2719 props_skip(props, skipped, &cleared_props);
2720 if (!nvlist_empty(cleared_props)) {
2721 /*
2722 * Acts on local properties until the dataset has received
2723 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2724 */
2725 zprop_source_t flags = (ZPROP_SRC_NONE |
2726 (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0));
2727 err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL);
2728 }
2729 nvlist_free(cleared_props);
2730 return (err);
2731 }
2732
2733 /*
2734 * inputs:
2735 * zc_name name of filesystem
2736 * zc_value name of property to set
2737 * zc_nvlist_src{_size} nvlist of properties to apply
2738 * zc_cookie received properties flag
2739 *
2740 * outputs:
2741 * zc_nvlist_dst{_size} error for each unapplied received property
2742 */
2743 static int
2744 zfs_ioc_set_prop(zfs_cmd_t *zc)
2745 {
2746 nvlist_t *nvl;
2747 boolean_t received = zc->zc_cookie;
2748 zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
2749 ZPROP_SRC_LOCAL);
2750 nvlist_t *errors;
2751 int error;
2752
2753 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2754 zc->zc_iflags, &nvl)) != 0)
2755 return (error);
2756
2757 if (received) {
2758 nvlist_t *origprops;
2759
2760 if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) {
2761 (void) clear_received_props(zc->zc_name,
2762 origprops, nvl);
2763 nvlist_free(origprops);
2764 }
2765
2766 error = dsl_prop_set_hasrecvd(zc->zc_name);
2767 }
2768
2769 errors = fnvlist_alloc();
2770 if (error == 0)
2771 error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors);
2772
2773 if (zc->zc_nvlist_dst != NULL && errors != NULL) {
2774 (void) put_nvlist(zc, errors);
2775 }
2776
2777 nvlist_free(errors);
2778 nvlist_free(nvl);
2779 return (error);
2780 }
2781
2782 /*
2783 * inputs:
2784 * zc_name name of filesystem
2785 * zc_value name of property to inherit
2786 * zc_cookie revert to received value if TRUE
2787 *
2788 * outputs: none
2789 */
2790 static int
2791 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
2792 {
2844 * Only check this in the non-received case. We want to allow
2845 * 'inherit -S' to revert non-inheritable properties like quota
2846 * and reservation to the received or default values even though
2847 * they are not considered inheritable.
2848 */
2849 if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
2850 return (SET_ERROR(EINVAL));
2851 }
2852
2853 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2854 return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source));
2855 }
2856
2857 static int
2858 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
2859 {
2860 nvlist_t *props;
2861 spa_t *spa;
2862 int error;
2863 nvpair_t *pair;
2864
2865 if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2866 zc->zc_iflags, &props))
2867 return (error);
2868
2869 /*
2870 * If the only property is the configfile, then just do a spa_lookup()
2871 * to handle the faulted case.
2872 */
2873 pair = nvlist_next_nvpair(props, NULL);
2874 if (pair != NULL && strcmp(nvpair_name(pair),
2875 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
2876 nvlist_next_nvpair(props, pair) == NULL) {
2877 mutex_enter(&spa_namespace_lock);
2878 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
2879 spa_configfile_set(spa, props, B_FALSE);
2880 spa_write_cachefile(spa, B_FALSE, B_TRUE);
2881 }
2882 mutex_exit(&spa_namespace_lock);
2883 if (spa != NULL) {
2884 nvlist_free(props);
2885 return (0);
2886 }
2887 }
2888
2889 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2890 nvlist_free(props);
2891 return (error);
2892 }
2893
2894 error = spa_prop_set(spa, props);
2895
2896 nvlist_free(props);
2897 spa_close(spa, FTAG);
2898
2899 return (error);
2900 }
2901
2902 static int
2903 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
2904 {
2905 spa_t *spa;
2906 int error;
2907 nvlist_t *nvp = NULL;
2908
2909 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2910 /*
2911 * If the pool is faulted, there may be properties we can still
2912 * get (such as altroot and cachefile), so attempt to get them
2913 * anyway.
2914 */
2915 mutex_enter(&spa_namespace_lock);
2997 error = put_nvlist(zc, nvp);
2998 nvlist_free(nvp);
2999 }
3000
3001 return (error);
3002 }
3003
3004 /* ARGSUSED */
3005 static void
3006 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
3007 {
3008 zfs_creat_t *zct = arg;
3009
3010 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
3011 }
3012
3013 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
3014
3015 /*
3016 * inputs:
3017 * os parent objset pointer (NULL if root fs)
3018 * fuids_ok fuids allowed in this version of the spa?
3019 * sa_ok SAs allowed in this version of the spa?
3020 * createprops list of properties requested by creator
3021 *
3022 * outputs:
3023 * zplprops values for the zplprops we attach to the master node object
3024 * is_ci true if requested file system will be purely case-insensitive
3025 *
3026 * Determine the settings for utf8only, normalization and
3027 * casesensitivity. Specific values may have been requested by the
3028 * creator and/or we can inherit values from the parent dataset. If
3029 * the file system is of too early a vintage, a creator can not
3030 * request settings for these properties, even if the requested
3031 * setting is the default value. We don't actually want to create dsl
3032 * properties for these, so remove them from the source nvlist after
3033 * processing.
3034 */
3035 static int
3036 zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
3074 */
3075 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
3076 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
3077 (zplver >= ZPL_VERSION_SA && !sa_ok) ||
3078 (zplver < ZPL_VERSION_NORMALIZATION &&
3079 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
3080 sense != ZFS_PROP_UNDEFINED)))
3081 return (SET_ERROR(ENOTSUP));
3082
3083 /*
3084 * Put the version in the zplprops
3085 */
3086 VERIFY(nvlist_add_uint64(zplprops,
3087 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
3088
3089 if (norm == ZFS_PROP_UNDEFINED)
3090 VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0);
3091 VERIFY(nvlist_add_uint64(zplprops,
3092 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
3093
3094 /*
3095 * If we're normalizing, names must always be valid UTF-8 strings.
3096 */
3097 if (norm)
3098 u8 = 1;
3099 if (u8 == ZFS_PROP_UNDEFINED)
3100 VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0);
3101 VERIFY(nvlist_add_uint64(zplprops,
3102 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
3103
3104 if (sense == ZFS_PROP_UNDEFINED)
3105 VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0);
3106 VERIFY(nvlist_add_uint64(zplprops,
3107 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
3108
3109 if (is_ci)
3110 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
3111
3112 return (0);
3113 }
3171 }
3172
3173 /*
3174 * innvl: {
3175 * "type" -> dmu_objset_type_t (int32)
3176 * (optional) "props" -> { prop -> value }
3177 * }
3178 *
3179 * outnvl: propname -> error code (int32)
3180 */
3181 static int
3182 zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3183 {
3184 int error = 0;
3185 zfs_creat_t zct = { 0 };
3186 nvlist_t *nvprops = NULL;
3187 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
3188 int32_t type32;
3189 dmu_objset_type_t type;
3190 boolean_t is_insensitive = B_FALSE;
3191
3192 if (nvlist_lookup_int32(innvl, "type", &type32) != 0)
3193 return (SET_ERROR(EINVAL));
3194 type = type32;
3195 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3196
3197 switch (type) {
3198 case DMU_OST_ZFS:
3199 cbfunc = zfs_create_cb;
3200 break;
3201
3202 case DMU_OST_ZVOL:
3203 cbfunc = zvol_create_cb;
3204 break;
3205
3206 default:
3207 cbfunc = NULL;
3208 break;
3209 }
3210 if (strchr(fsname, '@') ||
3211 strchr(fsname, '%'))
3212 return (SET_ERROR(EINVAL));
3213
3214 zct.zct_props = nvprops;
3215
3216 if (cbfunc == NULL)
3217 return (SET_ERROR(EINVAL));
3218
3219 if (type == DMU_OST_ZVOL) {
3220 uint64_t volsize, volblocksize;
3221
3222 if (nvprops == NULL)
3223 return (SET_ERROR(EINVAL));
3224 if (nvlist_lookup_uint64(nvprops,
3225 zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0)
3226 return (SET_ERROR(EINVAL));
3227
3228 if ((error = nvlist_lookup_uint64(nvprops,
3229 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
3230 &volblocksize)) != 0 && error != ENOENT)
3231 return (SET_ERROR(EINVAL));
3232
3233 if (error != 0)
3234 volblocksize = zfs_prop_default_numeric(
3235 ZFS_PROP_VOLBLOCKSIZE);
3236
3237 if ((error = zvol_check_volblocksize(
3238 volblocksize)) != 0 ||
3239 (error = zvol_check_volsize(volsize,
3240 volblocksize)) != 0)
3241 return (error);
3242 } else if (type == DMU_OST_ZFS) {
3243 int error;
3244
3245 /*
3246 * We have to have normalization and
3247 * case-folding flags correct when we do the
3248 * file system creation, so go figure them out
3249 * now.
3250 */
3251 VERIFY(nvlist_alloc(&zct.zct_zplprops,
3252 NV_UNIQUE_NAME, KM_SLEEP) == 0);
3253 error = zfs_fill_zplprops(fsname, nvprops,
3254 zct.zct_zplprops, &is_insensitive);
3255 if (error != 0) {
3256 nvlist_free(zct.zct_zplprops);
3257 return (error);
3258 }
3259 }
3260
3261 error = dmu_objset_create(fsname, type,
3262 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
3263 nvlist_free(zct.zct_zplprops);
3264
3265 /*
3266 * It would be nice to do this atomically.
3267 */
3268 if (error == 0) {
3269 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3270 nvprops, outnvl);
3271 if (error != 0)
3272 (void) dsl_destroy_head(fsname);
3273 }
3274 return (error);
3275 }
3276
3277 /*
3278 * innvl: {
3279 * "origin" -> name of origin snapshot
3280 * (optional) "props" -> { prop -> value }
3281 * }
3282 *
3283 * outnvl: propname -> error code (int32)
3284 */
3285 static int
3286 zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3287 {
3288 int error = 0;
3289 nvlist_t *nvprops = NULL;
3290 char *origin_name;
3291
3292 if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0)
3293 return (SET_ERROR(EINVAL));
3294 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3295
3296 if (strchr(fsname, '@') ||
3297 strchr(fsname, '%'))
3298 return (SET_ERROR(EINVAL));
3299
3300 if (dataset_namecheck(origin_name, NULL, NULL) != 0)
3301 return (SET_ERROR(EINVAL));
3302 error = dmu_objset_clone(fsname, origin_name);
3303 if (error != 0)
3304 return (error);
3305
3306 /*
3307 * It would be nice to do this atomically.
3308 */
3309 if (error == 0) {
3310 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3311 nvprops, outnvl);
3312 if (error != 0)
3313 (void) dsl_destroy_head(fsname);
3314 }
3315 return (error);
3316 }
3317
3318 /* ARGSUSED */
3319 static int
3320 zfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3321 {
3322 if (strchr(fsname, '@') ||
3323 strchr(fsname, '%'))
3324 return (SET_ERROR(EINVAL));
3325
3326 return (dmu_objset_remap_indirects(fsname));
3327 }
3328
3329 /*
3330 * innvl: {
3331 * "snaps" -> { snapshot1, snapshot2 }
3332 * (optional) "props" -> { prop -> value (string) }
3333 * }
3334 *
3335 * outnvl: snapshot -> error code (int32)
3336 */
3337 static int
3338 zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3339 {
3340 nvlist_t *snaps;
3341 nvlist_t *props = NULL;
3342 int error, poollen;
3343 nvpair_t *pair;
3344
3345 (void) nvlist_lookup_nvlist(innvl, "props", &props);
3346 if ((error = zfs_check_userprops(poolname, props)) != 0)
3347 return (error);
3348
3349 if (!nvlist_empty(props) &&
3350 zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS))
3351 return (SET_ERROR(ENOTSUP));
3352
3353 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
3354 return (SET_ERROR(EINVAL));
3355 poollen = strlen(poolname);
3356 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3357 pair = nvlist_next_nvpair(snaps, pair)) {
3358 const char *name = nvpair_name(pair);
3359 const char *cp = strchr(name, '@');
3360
3361 /*
3362 * The snap name must contain an @, and the part after it must
3363 * contain only valid characters.
3364 */
3365 if (cp == NULL ||
3366 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3367 return (SET_ERROR(EINVAL));
3368
3369 /*
3370 * The snap must be in the specified pool.
3371 */
3372 if (strncmp(name, poolname, poollen) != 0 ||
3373 (name[poollen] != '/' && name[poollen] != '@'))
3374 return (SET_ERROR(EXDEV));
3375
3376 /* This must be the only snap of this fs. */
3377 for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair);
3378 pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) {
3379 if (strncmp(name, nvpair_name(pair2), cp - name + 1)
3380 == 0) {
3381 return (SET_ERROR(EXDEV));
3382 }
3383 }
3384 }
3385
3386 error = dsl_dataset_snapshot(snaps, props, outnvl);
3387 return (error);
3388 }
3389
3390 /*
3391 * innvl: "message" -> string
3392 */
3393 /* ARGSUSED */
3394 static int
3395 zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
3396 {
3397 char *message;
3398 spa_t *spa;
3399 int error;
3400 char *poolname;
3401
3402 /*
3403 * The poolname in the ioctl is not set, we get it from the TSD,
3404 * which was set at the end of the last successful ioctl that allows
3405 * logging. The secpolicy func already checked that it is set.
3406 * Only one log ioctl is allowed after each successful ioctl, so
3484 zfs_destroy_unmount_origin(const char *fsname)
3485 {
3486 int error;
3487 objset_t *os;
3488 dsl_dataset_t *ds;
3489
3490 error = dmu_objset_hold(fsname, FTAG, &os);
3491 if (error != 0)
3492 return;
3493 ds = dmu_objset_ds(os);
3494 if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) {
3495 char originname[ZFS_MAX_DATASET_NAME_LEN];
3496 dsl_dataset_name(ds->ds_prev, originname);
3497 dmu_objset_rele(os, FTAG);
3498 zfs_unmount_snap(originname);
3499 } else {
3500 dmu_objset_rele(os, FTAG);
3501 }
3502 }
3503
3504 /*
3505 * innvl: {
3506 * "snaps" -> { snapshot1, snapshot2 }
3507 * (optional boolean) "defer"
3508 * }
3509 *
3510 * outnvl: snapshot -> error code (int32)
3511 *
3512 */
3513 /* ARGSUSED */
3514 static int
3515 zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3516 {
3517 nvlist_t *snaps;
3518 nvpair_t *pair;
3519 boolean_t defer;
3520
3521 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
3522 return (SET_ERROR(EINVAL));
3523 defer = nvlist_exists(innvl, "defer");
3524
3525 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3526 pair = nvlist_next_nvpair(snaps, pair)) {
3527 zfs_unmount_snap(nvpair_name(pair));
3528 }
3529
3530 return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl));
3531 }
3532
3533 /*
3534 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3535 * All bookmarks must be in the same pool.
3536 *
3537 * innvl: {
3538 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3539 * }
3540 *
3541 * outnvl: bookmark -> error code (int32)
3542 *
3543 */
3544 /* ARGSUSED */
3545 static int
3546 zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3547 {
3548 for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
3549 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
3550 char *snap_name;
3646 memlimit = ZCP_DEFAULT_MEMLIMIT;
3647 }
3648 if (0 != nvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST, &nvarg)) {
3649 return (EINVAL);
3650 }
3651
3652 if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit)
3653 return (EINVAL);
3654 if (memlimit == 0 || memlimit > zfs_lua_max_memlimit)
3655 return (EINVAL);
3656
3657 return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit,
3658 nvarg, outnvl));
3659 }
3660
3661 /*
3662 * inputs:
3663 * zc_name name of dataset to destroy
3664 * zc_objset_type type of objset
3665 * zc_defer_destroy mark for deferred destroy
3666 *
3667 * outputs: none
3668 */
3669 static int
3670 zfs_ioc_destroy(zfs_cmd_t *zc)
3671 {
3672 int err;
3673
3674 if (zc->zc_objset_type == DMU_OST_ZFS)
3675 zfs_unmount_snap(zc->zc_name);
3676
3677 if (strchr(zc->zc_name, '@'))
3678 err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy);
3679 else
3680 err = dsl_destroy_head(zc->zc_name);
3681 if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0)
3682 (void) zvol_remove_minor(zc->zc_name);
3683 return (err);
3684 }
3685
3686 /*
3687 * fsname is name of dataset to rollback (to most recent snapshot)
3688 *
3689 * innvl may contain name of expected target snapshot
3690 *
3691 * outnvl: "target" -> name of most recent snapshot
3692 * }
3693 */
3694 /* ARGSUSED */
3695 static int
3696 zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3697 {
3698 zfsvfs_t *zfsvfs;
3699 char *target = NULL;
3700 int error;
3701
3702 (void) nvlist_lookup_string(innvl, "target", &target);
3703 if (target != NULL) {
3704 const char *cp = strchr(target, '@');
3705
3706 /*
3707 * The snap name must contain an @, and the part after it must
3708 * contain only valid characters.
3709 */
3710 if (cp == NULL ||
3711 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3712 return (SET_ERROR(EINVAL));
3713 }
3714
3715 if (getzfsvfs(fsname, &zfsvfs) == 0) {
3716 dsl_dataset_t *ds;
3717
3718 ds = dmu_objset_ds(zfsvfs->z_os);
3719 error = zfs_suspend_fs(zfsvfs);
3720 if (error == 0) {
3721 int resume_err;
3722
3723 error = dsl_dataset_rollback(fsname, target, zfsvfs,
3724 outnvl);
3725 resume_err = zfs_resume_fs(zfsvfs, ds);
3726 error = error ? error : resume_err;
3727 }
3728 VFS_RELE(zfsvfs->z_vfs);
3729 } else {
3730 error = dsl_dataset_rollback(fsname, target, NULL, outnvl);
3731 }
3732 return (error);
3733 }
3734
3735 static int
3736 recursive_unmount(const char *fsname, void *arg)
3737 {
3738 const char *snapname = arg;
3739 char fullname[ZFS_MAX_DATASET_NAME_LEN];
3740
3741 (void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname);
3742 zfs_unmount_snap(fullname);
3743
3744 return (0);
3745 }
3746
3747 /*
3748 * inputs:
3749 * zc_name old name of dataset
3750 * zc_value new name of dataset
3751 * zc_cookie recursive flag (only valid for snapshots)
3752 *
3753 * outputs: none
3754 */
3755 static int
3756 zfs_ioc_rename(zfs_cmd_t *zc)
3757 {
3758 boolean_t recursive = zc->zc_cookie & 1;
3759 char *at;
3760
3761 /* "zfs rename" from and to ...%recv datasets should both fail */
3762 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
3763 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
3764 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 ||
3765 dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3766 strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%'))
3767 return (SET_ERROR(EINVAL));
3768
3769 at = strchr(zc->zc_name, '@');
3770 if (at != NULL) {
3771 /* snaps must be in same fs */
3772 int error;
3773
3774 if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1))
3775 return (SET_ERROR(EXDEV));
3776 *at = '\0';
3777 if (zc->zc_objset_type == DMU_OST_ZFS) {
3778 error = dmu_objset_find(zc->zc_name,
3779 recursive_unmount, at + 1,
3780 recursive ? DS_FIND_CHILDREN : 0);
3781 if (error != 0) {
3782 *at = '@';
3783 return (error);
3784 }
3785 }
3786 error = dsl_dataset_rename_snapshot(zc->zc_name,
3787 at + 1, strchr(zc->zc_value, '@') + 1, recursive);
3788 *at = '@';
3789
3790 return (error);
3791 } else {
3792 if (zc->zc_objset_type == DMU_OST_ZVOL)
3793 (void) zvol_remove_minor(zc->zc_name);
3794 return (dsl_dir_rename(zc->zc_name, zc->zc_value));
3795 }
3796 }
3797
3798 static int
3799 zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
3800 {
3801 const char *propname = nvpair_name(pair);
3802 boolean_t issnap = (strchr(dsname, '@') != NULL);
3803 zfs_prop_t prop = zfs_name_to_prop(propname);
3804 uint64_t intval;
3805 int err;
3806
3807 if (prop == ZPROP_INVAL) {
3808 if (zfs_prop_user(propname)) {
3809 if (err = zfs_secpolicy_write_perms(dsname,
3810 ZFS_DELEG_PERM_USERPROP, cr))
3811 return (err);
3812 return (0);
3813 }
3814
3815 if (!issnap && zfs_prop_userquota(propname)) {
3932 }
3933 spa_close(spa, FTAG);
3934 }
3935 break;
3936
3937 case ZFS_PROP_SHARESMB:
3938 if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
3939 return (SET_ERROR(ENOTSUP));
3940 break;
3941
3942 case ZFS_PROP_ACLINHERIT:
3943 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
3944 nvpair_value_uint64(pair, &intval) == 0) {
3945 if (intval == ZFS_ACL_PASSTHROUGH_X &&
3946 zfs_earlier_version(dsname,
3947 SPA_VERSION_PASSTHROUGH_X))
3948 return (SET_ERROR(ENOTSUP));
3949 }
3950 break;
3951
3952 case ZFS_PROP_CHECKSUM:
3953 case ZFS_PROP_DEDUP:
3954 {
3955 spa_feature_t feature;
3956 spa_t *spa;
3957
3958 /* dedup feature version checks */
3959 if (prop == ZFS_PROP_DEDUP &&
3960 zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
3961 return (SET_ERROR(ENOTSUP));
3962
3963 if (nvpair_value_uint64(pair, &intval) != 0)
3964 return (SET_ERROR(EINVAL));
3965
3966 /* check prop value is enabled in features */
3967 feature = zio_checksum_to_feature(intval & ZIO_CHECKSUM_MASK);
3968 if (feature == SPA_FEATURE_NONE)
3969 break;
3970
3971 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4207 }
4208 if (delayable[i] != 0) {
4209 tmp = nvlist_prev_nvpair(props, nvp);
4210 VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0);
4211 VERIFY(nvlist_remove_nvpair(props, nvp) == 0);
4212 nvp = tmp;
4213 }
4214 }
4215
4216 if (nvlist_empty(delayprops)) {
4217 nvlist_free(delayprops);
4218 delayprops = NULL;
4219 }
4220 return (delayprops);
4221 }
4222
4223 #ifdef DEBUG
4224 static boolean_t zfs_ioc_recv_inject_err;
4225 #endif
4226
4227 /*
4228 * inputs:
4229 * zc_name name of containing filesystem
4230 * zc_nvlist_src{_size} nvlist of properties to apply
4231 * zc_value name of snapshot to create
4232 * zc_string name of clone origin (if DRR_FLAG_CLONE)
4233 * zc_cookie file descriptor to recv from
4234 * zc_begin_record the BEGIN record of the stream (not byteswapped)
4235 * zc_guid force flag
4236 * zc_cleanup_fd cleanup-on-exit file descriptor
4237 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
4238 * zc_resumable if data is incomplete assume sender will resume
4239 *
4240 * outputs:
4241 * zc_cookie number of bytes read
4242 * zc_nvlist_dst{_size} error for each unapplied received property
4243 * zc_obj zprop_errflags_t
4244 * zc_action_handle handle for this guid/ds mapping
4245 */
4246 static int
4247 zfs_ioc_recv(zfs_cmd_t *zc)
4248 {
4249 file_t *fp;
4250 dmu_recv_cookie_t drc;
4251 boolean_t force = (boolean_t)zc->zc_guid;
4252 int fd;
4253 int error = 0;
4254 int props_error = 0;
4255 nvlist_t *errors;
4256 offset_t off;
4257 nvlist_t *props = NULL; /* sent properties */
4258 nvlist_t *origprops = NULL; /* existing properties */
4259 nvlist_t *delayprops = NULL; /* sent properties applied post-receive */
4260 char *origin = NULL;
4261 char *tosnap;
4262 char tofs[ZFS_MAX_DATASET_NAME_LEN];
4263 boolean_t first_recvd_props = B_FALSE;
4264
4265 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
4266 strchr(zc->zc_value, '@') == NULL ||
4267 strchr(zc->zc_value, '%'))
4268 return (SET_ERROR(EINVAL));
4269
4270 (void) strcpy(tofs, zc->zc_value);
4271 tosnap = strchr(tofs, '@');
4272 *tosnap++ = '\0';
4273
4274 if (zc->zc_nvlist_src != NULL &&
4275 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
4276 zc->zc_iflags, &props)) != 0)
4277 return (error);
4278
4279 fd = zc->zc_cookie;
4280 fp = getf(fd);
4281 if (fp == NULL) {
4282 nvlist_free(props);
4283 return (SET_ERROR(EBADF));
4284 }
4285
4286 errors = fnvlist_alloc();
4287
4288 if (zc->zc_string[0])
4289 origin = zc->zc_string;
4290
4291 error = dmu_recv_begin(tofs, tosnap,
4292 &zc->zc_begin_record, force, zc->zc_resumable, origin, &drc);
4293 if (error != 0)
4294 goto out;
4295
4296 /*
4297 * Set properties before we receive the stream so that they are applied
4298 * to the new data. Note that we must call dmu_recv_stream() if
4299 * dmu_recv_begin() succeeds.
4300 */
4301 if (props != NULL && !drc.drc_newfs) {
4302 if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >=
4303 SPA_VERSION_RECVD_PROPS &&
4304 !dsl_prop_get_hasrecvd(tofs))
4305 first_recvd_props = B_TRUE;
4306
4307 /*
4308 * If new received properties are supplied, they are to
4309 * completely replace the existing received properties, so stash
4310 * away the existing ones.
4311 */
4312 if (dsl_prop_get_received(tofs, &origprops) == 0) {
4313 nvlist_t *errlist = NULL;
4314 /*
4315 * Don't bother writing a property if its value won't
4316 * change (and avoid the unnecessary security checks).
4317 *
4318 * The first receive after SPA_VERSION_RECVD_PROPS is a
4319 * special case where we blow away all local properties
4320 * regardless.
4321 */
4322 if (!first_recvd_props)
4323 props_reduce(props, origprops);
4324 if (zfs_check_clearable(tofs, origprops, &errlist) != 0)
4325 (void) nvlist_merge(errors, errlist, 0);
4326 nvlist_free(errlist);
4327
4328 if (clear_received_props(tofs, origprops,
4329 first_recvd_props ? NULL : props) != 0)
4330 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
4331 } else {
4332 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
4333 }
4334 }
4335
4336 if (props != NULL) {
4337 props_error = dsl_prop_set_hasrecvd(tofs);
4338
4339 if (props_error == 0) {
4340 delayprops = extract_delay_props(props);
4341 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4342 props, errors);
4343 }
4344 }
4345
4346 off = fp->f_offset;
4347 error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd,
4348 &zc->zc_action_handle);
4349
4350 if (error == 0) {
4351 zfsvfs_t *zfsvfs = NULL;
4352
4353 if (getzfsvfs(tofs, &zfsvfs) == 0) {
4354 /* online recv */
4355 dsl_dataset_t *ds;
4356 int end_err;
4357
4358 ds = dmu_objset_ds(zfsvfs->z_os);
4359 error = zfs_suspend_fs(zfsvfs);
4360 /*
4361 * If the suspend fails, then the recv_end will
4362 * likely also fail, and clean up after itself.
4363 */
4364 end_err = dmu_recv_end(&drc, zfsvfs);
4365 if (error == 0)
4366 error = zfs_resume_fs(zfsvfs, ds);
4367 error = error ? error : end_err;
4368 VFS_RELE(zfsvfs->z_vfs);
4369 } else {
4370 error = dmu_recv_end(&drc, NULL);
4371 }
4372
4373 /* Set delayed properties now, after we're done receiving. */
4374 if (delayprops != NULL && error == 0) {
4375 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4376 delayprops, errors);
4377 }
4378 }
4379
4380 if (delayprops != NULL) {
4381 /*
4382 * Merge delayed props back in with initial props, in case
4383 * we're DEBUG and zfs_ioc_recv_inject_err is set (which means
4384 * we have to make sure clear_received_props() includes
4385 * the delayed properties).
4386 *
4387 * Since zfs_ioc_recv_inject_err is only in DEBUG kernels,
4388 * using ASSERT() will be just like a VERIFY.
4389 */
4390 ASSERT(nvlist_merge(props, delayprops, 0) == 0);
4391 nvlist_free(delayprops);
4392 }
4393
4394 /*
4395 * Now that all props, initial and delayed, are set, report the prop
4396 * errors to the caller.
4397 */
4398 if (zc->zc_nvlist_dst_size != 0 &&
4399 (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 ||
4400 put_nvlist(zc, errors) != 0)) {
4401 /*
4402 * Caller made zc->zc_nvlist_dst less than the minimum expected
4403 * size or supplied an invalid address.
4404 */
4405 props_error = SET_ERROR(EINVAL);
4406 }
4407
4408 zc->zc_cookie = off - fp->f_offset;
4409 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4410 fp->f_offset = off;
4411
4412 #ifdef DEBUG
4413 if (zfs_ioc_recv_inject_err) {
4414 zfs_ioc_recv_inject_err = B_FALSE;
4415 error = 1;
4416 }
4417 #endif
4418 /*
4419 * On error, restore the original props.
4420 */
4421 if (error != 0 && props != NULL && !drc.drc_newfs) {
4422 if (clear_received_props(tofs, props, NULL) != 0) {
4423 /*
4424 * We failed to clear the received properties.
4425 * Since we may have left a $recvd value on the
4426 * system, we can't clear the $hasrecvd flag.
4427 */
4428 zc->zc_obj |= ZPROP_ERR_NORESTORE;
4429 } else if (first_recvd_props) {
4430 dsl_prop_unset_hasrecvd(tofs);
4431 }
4432
4433 if (origprops == NULL && !drc.drc_newfs) {
4434 /* We failed to stash the original properties. */
4435 zc->zc_obj |= ZPROP_ERR_NORESTORE;
4436 }
4437
4438 /*
4439 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4440 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4441 * explictly if we're restoring local properties cleared in the
4442 * first new-style receive.
4443 */
4444 if (origprops != NULL &&
4445 zfs_set_prop_nvlist(tofs, (first_recvd_props ?
4446 ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
4447 origprops, NULL) != 0) {
4448 /*
4449 * We stashed the original properties but failed to
4450 * restore them.
4451 */
4452 zc->zc_obj |= ZPROP_ERR_NORESTORE;
4453 }
4454 }
4455 out:
4456 nvlist_free(props);
4457 nvlist_free(origprops);
4458 nvlist_free(errors);
4459 releasef(fd);
4460
4461 if (error == 0)
4462 error = props_error;
4463
4464 return (error);
4465 }
4466
4467 /*
4468 * inputs:
4469 * zc_name name of snapshot to send
4470 * zc_cookie file descriptor to send stream to
4471 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4472 * zc_sendobj objsetid of snapshot to send
4473 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4474 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4475 * output size in zc_objset_type.
4476 * zc_flags lzc_send_flags
4477 *
4478 * outputs:
4479 * zc_objset_type estimated size, if zc_guid is set
4480 */
4481 static int
4482 zfs_ioc_send(zfs_cmd_t *zc)
4483 {
4484 int error;
4485 offset_t off;
4486 boolean_t estimate = (zc->zc_guid != 0);
4487 boolean_t embedok = (zc->zc_flags & 0x1);
4488 boolean_t large_block_ok = (zc->zc_flags & 0x2);
4525 }
4526
4527 if (zc->zc_fromobj != 0) {
4528 error = dsl_dataset_hold_obj(dp, zc->zc_fromobj,
4529 FTAG, &fromsnap);
4530 if (error != 0) {
4531 dsl_dataset_rele(tosnap, FTAG);
4532 dsl_pool_rele(dp, FTAG);
4533 return (error);
4534 }
4535 }
4536
4537 error = dmu_send_estimate(tosnap, fromsnap, compressok,
4538 &zc->zc_objset_type);
4539
4540 if (fromsnap != NULL)
4541 dsl_dataset_rele(fromsnap, FTAG);
4542 dsl_dataset_rele(tosnap, FTAG);
4543 dsl_pool_rele(dp, FTAG);
4544 } else {
4545 file_t *fp = getf(zc->zc_cookie);
4546 if (fp == NULL)
4547 return (SET_ERROR(EBADF));
4548
4549 off = fp->f_offset;
4550 error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
4551 zc->zc_fromobj, embedok, large_block_ok, compressok,
4552 zc->zc_cookie, fp->f_vnode, &off);
4553
4554 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4555 fp->f_offset = off;
4556 releasef(zc->zc_cookie);
4557 }
4558 return (error);
4559 }
4560
4561 /*
4562 * inputs:
4563 * zc_name name of snapshot on which to report progress
4564 * zc_cookie file descriptor of send stream
4565 *
4566 * outputs:
4567 * zc_cookie number of bytes written in send stream thus far
4568 */
4569 static int
4570 zfs_ioc_send_progress(zfs_cmd_t *zc)
4571 {
4572 dsl_pool_t *dp;
4573 dsl_dataset_t *ds;
4768
4769 (void) spa_vdev_state_exit(spa, NULL, 0);
4770 spa_close(spa, FTAG);
4771 return (0);
4772 }
4773 /*
4774 * inputs:
4775 * zc_name name of filesystem
4776 *
4777 * outputs:
4778 * zc_string name of conflicting snapshot, if there is one
4779 */
4780 static int
4781 zfs_ioc_promote(zfs_cmd_t *zc)
4782 {
4783 dsl_pool_t *dp;
4784 dsl_dataset_t *ds, *ods;
4785 char origin[ZFS_MAX_DATASET_NAME_LEN];
4786 char *cp;
4787 int error;
4788
4789 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
4790 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 ||
4791 strchr(zc->zc_name, '%'))
4792 return (SET_ERROR(EINVAL));
4793
4794 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
4795 if (error != 0)
4796 return (error);
4797
4798 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
4799 if (error != 0) {
4800 dsl_pool_rele(dp, FTAG);
4801 return (error);
4802 }
4803
4804 if (!dsl_dir_is_clone(ds->ds_dir)) {
4805 dsl_dataset_rele(ds, FTAG);
4806 dsl_pool_rele(dp, FTAG);
4807 return (SET_ERROR(EINVAL));
4808 }
4809
4810 error = dsl_dataset_hold_obj(dp,
4811 dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods);
4812 if (error != 0) {
4813 dsl_dataset_rele(ds, FTAG);
4814 dsl_pool_rele(dp, FTAG);
4815 return (error);
4816 }
4817
4818 dsl_dataset_name(ods, origin);
4819 dsl_dataset_rele(ods, FTAG);
4820 dsl_dataset_rele(ds, FTAG);
4821 dsl_pool_rele(dp, FTAG);
4822
4823 /*
4824 * We don't need to unmount *all* the origin fs's snapshots, but
4825 * it's easier.
4826 */
4827 cp = strchr(origin, '@');
4828 if (cp)
4829 *cp = '\0';
4830 (void) dmu_objset_find(origin,
4831 zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS);
4832 return (dsl_dataset_promote(zc->zc_name, zc->zc_string));
4833 }
4834
4835 /*
4836 * Retrieve a single {user|group}{used|quota}@... property.
4837 *
4838 * inputs:
4839 * zc_name name of filesystem
4840 * zc_objset_type zfs_userquota_prop_t
4841 * zc_value domain name (eg. "S-1-234-567-89")
4842 * zc_guid RID/UID/GID
4843 *
4844 * outputs:
4845 * zc_cookie property value
4846 */
4847 static int
4848 zfs_ioc_userspace_one(zfs_cmd_t *zc)
4849 {
4850 zfsvfs_t *zfsvfs;
4851 int error;
4852
5493 if (error == 0 && !old->ds_is_snapshot) {
5494 dsl_dataset_rele(old, FTAG);
5495 error = SET_ERROR(EINVAL);
5496 }
5497 if (error != 0) {
5498 dsl_dataset_rele(new, FTAG);
5499 dsl_pool_rele(dp, FTAG);
5500 return (error);
5501 }
5502
5503 error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp);
5504 dsl_dataset_rele(old, FTAG);
5505 dsl_dataset_rele(new, FTAG);
5506 dsl_pool_rele(dp, FTAG);
5507 fnvlist_add_uint64(outnvl, "used", used);
5508 fnvlist_add_uint64(outnvl, "compressed", comp);
5509 fnvlist_add_uint64(outnvl, "uncompressed", uncomp);
5510 return (error);
5511 }
5512
5513 /*
5514 * innvl: {
5515 * "fd" -> file descriptor to write stream to (int32)
5516 * (optional) "fromsnap" -> full snap name to send an incremental from
5517 * (optional) "largeblockok" -> (value ignored)
5518 * indicates that blocks > 128KB are permitted
5519 * (optional) "embedok" -> (value ignored)
5520 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5521 * (optional) "compressok" -> (value ignored)
5522 * presence indicates compressed DRR_WRITE records are permitted
5523 * (optional) "resume_object" and "resume_offset" -> (uint64)
5524 * if present, resume send stream from specified object and offset.
5525 * }
5526 *
5527 * outnvl is unused
5528 */
5529 /* ARGSUSED */
5530 static int
5531 zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
5532 {
5643 * bookmark
5644 */
5645 error = SET_ERROR(EINVAL);
5646 goto out;
5647 }
5648 } else {
5649 /*
5650 * If estimating the size of a full send, use dmu_send_estimate.
5651 */
5652 error = dmu_send_estimate(tosnap, NULL, compressok, &space);
5653 }
5654
5655 fnvlist_add_uint64(outnvl, "space", space);
5656
5657 out:
5658 dsl_dataset_rele(tosnap, FTAG);
5659 dsl_pool_rele(dp, FTAG);
5660 return (error);
5661 }
5662
5663 static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
5664
5665 static void
5666 zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5667 zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
5668 boolean_t log_history, zfs_ioc_poolcheck_t pool_check)
5669 {
5670 zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
5671
5672 ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
5673 ASSERT3U(ioc, <, ZFS_IOC_LAST);
5674 ASSERT3P(vec->zvec_legacy_func, ==, NULL);
5675 ASSERT3P(vec->zvec_func, ==, NULL);
5676
5677 vec->zvec_legacy_func = func;
5678 vec->zvec_secpolicy = secpolicy;
5679 vec->zvec_namecheck = namecheck;
5680 vec->zvec_allow_log = log_history;
5681 vec->zvec_pool_check = pool_check;
5682 }
5748 {
5749 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5750 DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED);
5751 }
5752
5753 static void
5754 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
5755 {
5756 zfs_ioctl_register_dataset_read_secpolicy(ioc, func,
5757 zfs_secpolicy_read);
5758 }
5759
5760 static void
5761 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
5762 zfs_secpolicy_func_t *secpolicy)
5763 {
5764 zfs_ioctl_register_legacy(ioc, func, secpolicy,
5765 DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
5766 }
5767
5768 static void
5769 zfs_ioctl_init(void)
5770 {
5771 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT,
5772 zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME,
5773 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5774
5775 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY,
5776 zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME,
5777 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
5778
5779 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS,
5780 zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME,
5781 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5782
5783 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW,
5784 zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME,
5785 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5786
5787 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE,
5788 zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME,
5789 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5790
5791 zfs_ioctl_register("create", ZFS_IOC_CREATE,
5792 zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME,
5793 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5794
5795 zfs_ioctl_register("clone", ZFS_IOC_CLONE,
5796 zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME,
5797 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5798
5799 zfs_ioctl_register("remap", ZFS_IOC_REMAP,
5800 zfs_ioc_remap, zfs_secpolicy_remap, DATASET_NAME,
5801 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE);
5802
5803 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS,
5804 zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME,
5805 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5806
5807 zfs_ioctl_register("hold", ZFS_IOC_HOLD,
5808 zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME,
5809 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5810 zfs_ioctl_register("release", ZFS_IOC_RELEASE,
5811 zfs_ioc_release, zfs_secpolicy_release, POOL_NAME,
5812 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5813
5814 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS,
5815 zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME,
5816 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5817
5818 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,
5819 zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME,
5820 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE);
5821
5822 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK,
5823 zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME,
5824 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5825
5826 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS,
5827 zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME,
5828 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
5829
5830 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS,
5831 zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks,
5832 POOL_NAME,
5833 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
5834
5835 zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM,
5836 zfs_ioc_channel_program, zfs_secpolicy_config,
5837 POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE,
5838 B_TRUE);
5839
5840 /* IOCTLS that use the legacy function signature */
5841
5842 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,
5843 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY);
5844
5845 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create,
5846 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
5847 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN,
5848 zfs_ioc_pool_scan);
5849 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE,
5850 zfs_ioc_pool_upgrade);
5851 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD,
5852 zfs_ioc_vdev_add);
5853 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE,
5854 zfs_ioc_vdev_remove);
5855 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE,
5856 zfs_ioc_vdev_set_state);
5857 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH,
5858 zfs_ioc_vdev_attach);
5859 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH,
5860 zfs_ioc_vdev_detach);
5861 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH,
5862 zfs_ioc_vdev_setpath);
5863 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU,
5864 zfs_ioc_vdev_setfru);
5865 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS,
5866 zfs_ioc_pool_set_props);
5867 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT,
5868 zfs_ioc_vdev_split);
5869 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID,
5870 zfs_ioc_pool_reguid);
5871
5872 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS,
5873 zfs_ioc_pool_configs, zfs_secpolicy_none);
5874 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT,
5875 zfs_ioc_pool_tryimport, zfs_secpolicy_config);
5876 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT,
5877 zfs_ioc_inject_fault, zfs_secpolicy_inject);
5878 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT,
5879 zfs_ioc_clear_fault, zfs_secpolicy_inject);
5880 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT,
5891 zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE);
5892
5893 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats,
5894 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
5895 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props,
5896 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
5897
5898 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log,
5899 zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED);
5900 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME,
5901 zfs_ioc_dsobj_to_dsname,
5902 zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED);
5903 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY,
5904 zfs_ioc_pool_get_history,
5905 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
5906
5907 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import,
5908 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
5909
5910 zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear,
5911 zfs_secpolicy_config, B_TRUE, POOL_CHECK_READONLY);
5912 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen,
5913 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
5914
5915 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN,
5916 zfs_ioc_space_written);
5917 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS,
5918 zfs_ioc_objset_recvd_props);
5919 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ,
5920 zfs_ioc_next_obj);
5921 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL,
5922 zfs_ioc_get_fsacl);
5923 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS,
5924 zfs_ioc_objset_stats);
5925 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS,
5926 zfs_ioc_objset_zplprops);
5927 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT,
5928 zfs_ioc_dataset_list_next);
5929 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT,
5930 zfs_ioc_snapshot_list_next);
5931 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS,
5932 zfs_ioc_send_progress);
5933
5934 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF,
6386 spa_init(FREAD | FWRITE);
6387 zfs_init();
6388 zvol_init();
6389 zfs_ioctl_init();
6390
6391 if ((error = mod_install(&modlinkage)) != 0) {
6392 zvol_fini();
6393 zfs_fini();
6394 spa_fini();
6395 return (error);
6396 }
6397
6398 tsd_create(&zfs_fsyncer_key, NULL);
6399 tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
6400 tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy);
6401
6402 error = ldi_ident_from_mod(&modlinkage, &zfs_li);
6403 ASSERT(error == 0);
6404 mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
6405
6406 return (0);
6407 }
6408
6409 int
6410 _fini(void)
6411 {
6412 int error;
6413
6414 if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
6415 return (SET_ERROR(EBUSY));
6416
6417 if ((error = mod_remove(&modlinkage)) != 0)
6418 return (error);
6419
6420 zvol_fini();
6421 zfs_fini();
6422 spa_fini();
6423 if (zfs_nfsshare_inited)
6424 (void) ddi_modclose(nfs_mod);
6425 if (zfs_smbshare_inited)
6426 (void) ddi_modclose(smbsrv_mod);
6427 if (zfs_nfsshare_inited || zfs_smbshare_inited)
6428 (void) ddi_modclose(sharefs_mod);
6429
6430 tsd_destroy(&zfs_fsyncer_key);
6431 ldi_ident_release(zfs_li);
6432 zfs_li = NULL;
6433 mutex_destroy(&zfs_share_lock);
6434
6435 return (error);
6436 }
6437
6438 int
6439 _info(struct modinfo *modinfop)
6440 {
6441 return (mod_info(&modlinkage, modinfop));
6442 }
|
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /*
27 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved.
28 * Portions Copyright 2011 Martin Matuska
29 * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
30 * Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved.
31 * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
32 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
33 * Copyright (c) 2013 Steven Hartland. All rights reserved.
34 * Copyright (c) 2014 Integros [integros.com]
35 * Copyright 2018 Nexenta Systems, Inc.
36 * Copyright 2016 Toomas Soome <tsoome@me.com>
37 * Copyright 2017 RackTop Systems.
38 * Copyright (c) 2017 Datto Inc.
39 */
40
41 /*
42 * ZFS ioctls.
43 *
44 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
45 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
46 *
47 * There are two ways that we handle ioctls: the legacy way where almost
48 * all of the logic is in the ioctl callback, and the new way where most
49 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
50 *
51 * Non-legacy ioctls should be registered by calling
52 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
53 * from userland by lzc_ioctl().
54 *
55 * The registration arguments are as follows:
142 #include <sys/types.h>
143 #include <sys/param.h>
144 #include <sys/errno.h>
145 #include <sys/uio.h>
146 #include <sys/buf.h>
147 #include <sys/modctl.h>
148 #include <sys/open.h>
149 #include <sys/file.h>
150 #include <sys/kmem.h>
151 #include <sys/conf.h>
152 #include <sys/cmn_err.h>
153 #include <sys/stat.h>
154 #include <sys/zfs_ioctl.h>
155 #include <sys/zfs_vfsops.h>
156 #include <sys/zfs_znode.h>
157 #include <sys/zap.h>
158 #include <sys/spa.h>
159 #include <sys/spa_impl.h>
160 #include <sys/vdev.h>
161 #include <sys/priv_impl.h>
162 #include <sys/autosnap.h>
163 #include <sys/dmu.h>
164 #include <sys/dsl_dir.h>
165 #include <sys/dsl_dataset.h>
166 #include <sys/dsl_prop.h>
167 #include <sys/dsl_deleg.h>
168 #include <sys/dsl_synctask.h>
169 #include <sys/dmu_objset.h>
170 #include <sys/dmu_impl.h>
171 #include <sys/dmu_tx.h>
172 #include <sys/ddi.h>
173 #include <sys/sunddi.h>
174 #include <sys/sunldi.h>
175 #include <sys/policy.h>
176 #include <sys/zone.h>
177 #include <sys/nvpair.h>
178 #include <sys/pathname.h>
179 #include <sys/mount.h>
180 #include <sys/sdt.h>
181 #include <sys/fs/zfs.h>
182 #include <sys/zfs_ctldir.h>
183 #include <sys/zfs_dir.h>
184 #include <sys/zfs_onexit.h>
185 #include <sys/zvol.h>
186 #include <sys/dsl_scan.h>
187 #include <sharefs/share.h>
188 #include <sys/dmu_objset.h>
189 #include <sys/dmu_send.h>
190 #include <sys/dsl_destroy.h>
191 #include <sys/dsl_bookmark.h>
192 #include <sys/dsl_userhold.h>
193 #include <sys/zfeature.h>
194 #include <sys/cos.h>
195 #include <sys/cos_impl.h>
196 #include <sys/zfeature.h>
197 #include <sys/sysevent.h>
198 #include <sys/sysevent_impl.h>
199 #include <sys/zcp.h>
200 #include <sys/zio_checksum.h>
201
202 #include "zfs_namecheck.h"
203 #include "zfs_prop.h"
204 #include "zfs_deleg.h"
205 #include "zfs_comutil.h"
206 #include "zfs_errno.h"
207
208 #include "lua.h"
209 #include "lauxlib.h"
210
211 extern struct modlfs zfs_modlfs;
212
213 extern void zfs_init(void);
214 extern void zfs_fini(void);
215
216 ldi_ident_t zfs_li = NULL;
217 dev_info_t *zfs_dip;
218
219 uint_t zfs_fsyncer_key;
220 extern uint_t rrw_tsd_key;
221 static uint_t zfs_allow_log_key;
222
223 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
224 typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *);
225 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *);
226
250 /* This array is indexed by zfs_userquota_prop_t */
251 static const char *userquota_perms[] = {
252 ZFS_DELEG_PERM_USERUSED,
253 ZFS_DELEG_PERM_USERQUOTA,
254 ZFS_DELEG_PERM_GROUPUSED,
255 ZFS_DELEG_PERM_GROUPQUOTA,
256 };
257
258 static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
259 static int zfs_check_settable(const char *name, nvpair_t *property,
260 cred_t *cr);
261 static int zfs_check_clearable(char *dataset, nvlist_t *props,
262 nvlist_t **errors);
263 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
264 boolean_t *);
265 int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *);
266 static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp);
267
268 static int zfs_prop_activate_feature(spa_t *spa, spa_feature_t feature);
269
270 static int
271 zfs_is_wormed_ds(dsl_dataset_t *ds)
272 {
273 char worminfo[13] = {0};
274
275 if (dsl_prop_get_ds(ds, "nms:worm", 1, 12, &worminfo, NULL) == 0 &&
276 worminfo[0] && strcmp(worminfo, "0") != 0 &&
277 strcmp(worminfo, "off") != 0 && strcmp(worminfo, "-") != 0) {
278 return (1);
279 }
280 return (0);
281 }
282
283 static int
284 zfs_is_wormed(const char *name)
285 {
286 char worminfo[13] = {0};
287 char cname[MAXNAMELEN];
288 char *end;
289
290 (void) strlcpy(cname, name, MAXNAMELEN);
291 end = strchr(cname, '@');
292 if (end)
293 *end = 0;
294
295 if (dsl_prop_get(cname, "nms:worm", 1, 12, &worminfo, NULL) == 0 &&
296 worminfo[0] && strcmp(worminfo, "0") != 0 &&
297 strcmp(worminfo, "off") != 0 && strcmp(worminfo, "-") != 0) {
298 return (1);
299 }
300 return (0);
301 }
302
303 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
304 void
305 __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
306 {
307 const char *newfile;
308 char buf[512];
309 va_list adx;
310
311 /*
312 * Get rid of annoying "../common/" prefix to filename.
313 */
314 newfile = strrchr(file, '/');
315 if (newfile != NULL) {
316 newfile = newfile + 1; /* Get rid of leading / */
317 } else {
318 newfile = file;
319 }
320
321 va_start(adx, fmt);
322 (void) vsnprintf(buf, sizeof (buf), fmt, adx);
798 NO_FOLLOW, NULL, &vp)) != 0)
799 return (error);
800
801 /* Now make sure mntpnt and dataset are ZFS */
802
803 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
804 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
805 zc->zc_name) != 0)) {
806 VN_RELE(vp);
807 return (SET_ERROR(EPERM));
808 }
809
810 VN_RELE(vp);
811 return (dsl_deleg_access(zc->zc_name,
812 ZFS_DELEG_PERM_SHARE, cr));
813 }
814
815 int
816 zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
817 {
818 if (secpolicy_nfs(cr) == 0) {
819 return (0);
820 } else {
821 return (zfs_secpolicy_deleg_share(zc, innvl, cr));
822 }
823 }
824
825 int
826 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
827 {
828 if (secpolicy_smb(cr) == 0) {
829 return (0);
830 } else {
831 return (zfs_secpolicy_deleg_share(zc, innvl, cr));
832 }
833 }
834
835 static int
836 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
837 {
838 char *cp;
839
840 /*
841 * Remove the @bla or /bla from the end of the name to get the parent.
842 */
843 (void) strncpy(parent, datasetname, parentsize);
844 cp = strrchr(parent, '@');
845 if (cp != NULL) {
846 cp[0] = '\0';
847 } else {
1063 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
1064 char *name = nvpair_name(pair);
1065 char *hashp = strchr(name, '#');
1066
1067 if (hashp == NULL) {
1068 error = SET_ERROR(EINVAL);
1069 break;
1070 }
1071 *hashp = '\0';
1072 error = zfs_secpolicy_write_perms(name,
1073 ZFS_DELEG_PERM_BOOKMARK, cr);
1074 *hashp = '#';
1075 if (error != 0)
1076 break;
1077 }
1078 return (error);
1079 }
1080
1081 /* ARGSUSED */
1082 static int
1083 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1084 {
1085 nvpair_t *pair, *nextpair;
1086 int error = 0;
1087
1088 for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
1089 pair = nextpair) {
1090 char *name = nvpair_name(pair);
1091 char *hashp = strchr(name, '#');
1092 nextpair = nvlist_next_nvpair(innvl, pair);
1093
1094 if (hashp == NULL) {
1095 error = SET_ERROR(EINVAL);
1096 break;
1097 }
1098
1099 *hashp = '\0';
1100 error = zfs_secpolicy_write_perms(name,
1101 ZFS_DELEG_PERM_DESTROY, cr);
1102 *hashp = '#';
1395
1396 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0);
1397 more_errors = nvlist_prev_nvpair(errors, NULL);
1398
1399 do {
1400 nvpair_t *pair = nvlist_prev_nvpair(errors,
1401 more_errors);
1402 fnvlist_remove_nvpair(errors, pair);
1403 n++;
1404 size = fnvlist_size(errors);
1405 } while (size > max);
1406
1407 fnvlist_remove_nvpair(errors, more_errors);
1408 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n);
1409 ASSERT3U(fnvlist_size(errors), <=, max);
1410 }
1411
1412 return (0);
1413 }
1414
1415 /*
1416 * Callers will know whether there's anything to unpack based on ret non-0/errno
1417 * set to ENOMEM, but observers (e.g truss) need the message properly marked to
1418 * know if it should be unpacked and displayed. Don't marked as filled unless
1419 * completely successful. If there's a non-empty nvlist, set size to its nvl
1420 * size as resize hint.
1421 */
1422 static int
1423 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
1424 {
1425 char *packed = NULL;
1426 int error = 0;
1427 size_t size;
1428
1429 size = fnvlist_size(nvl);
1430
1431 zc->zc_nvlist_dst_filled = B_FALSE;
1432 if (size > zc->zc_nvlist_dst_size) {
1433 error = SET_ERROR(ENOMEM);
1434 } else {
1435 packed = fnvlist_pack(nvl, &size);
1436 if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
1437 size, zc->zc_iflags) != 0)
1438 error = SET_ERROR(EFAULT);
1439 else
1440 zc->zc_nvlist_dst_filled = B_TRUE;
1441 fnvlist_pack_free(packed, size);
1442 }
1443
1444 zc->zc_nvlist_dst_size = size;
1445 return (error);
1446 }
1447
1448 static int
1449 getzfsvfs_from_ds(dsl_dataset_t *ds, zfsvfs_t **zfvp)
1450 {
1451 objset_t *os;
1452 int error;
1453 dsl_pool_t *dp;
1454
1455 dp = ds->ds_dir->dd_pool;
1456 dsl_pool_config_enter(dp, FTAG);
1457
1458 /*
1459 * IU: we probably need to hold dataset here.
1460 * For now let's assume we do.
1461 * May need revision later.
1462 */
1463 dsl_dataset_long_hold(ds, FTAG);
1464 error = dmu_objset_from_ds(ds, &os);
1465 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1466 dsl_dataset_long_rele(ds, FTAG);
1467 dsl_pool_config_exit(dp, FTAG);
1468 return (EINVAL);
1469 }
1470
1471 mutex_enter(&os->os_user_ptr_lock);
1472 *zfvp = dmu_objset_get_user(os);
1473 if (*zfvp) {
1474 VFS_HOLD((*zfvp)->z_vfs);
1475 } else {
1476 error = ESRCH;
1477 }
1478 mutex_exit(&os->os_user_ptr_lock);
1479 dsl_dataset_long_rele(ds, FTAG);
1480 dsl_pool_config_exit(dp, FTAG);
1481 return (error);
1482 }
1483
1484 int
1485 getzfsvfs_impl(objset_t *os, zfsvfs_t **zfvp)
1486 {
1487 int error = 0;
1488 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1489 return (SET_ERROR(EINVAL));
1490 }
1491
1492 mutex_enter(&os->os_user_ptr_lock);
1493 *zfvp = dmu_objset_get_user(os);
1494 if (*zfvp) {
1495 VFS_HOLD((*zfvp)->z_vfs);
1496 } else {
1497 error = SET_ERROR(ESRCH);
1498 }
1499 mutex_exit(&os->os_user_ptr_lock);
1500 return (error);
1501 }
1502
1503 int
1540 rrm_exit(&(*zfvp)->z_teardown_lock, tag);
1541 return (SET_ERROR(EBUSY));
1542 }
1543 }
1544 return (error);
1545 }
1546
1547 static void
1548 zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
1549 {
1550 rrm_exit(&zfsvfs->z_teardown_lock, tag);
1551
1552 if (zfsvfs->z_vfs) {
1553 VFS_RELE(zfsvfs->z_vfs);
1554 } else {
1555 dmu_objset_disown(zfsvfs->z_os, zfsvfs);
1556 zfsvfs_free(zfsvfs);
1557 }
1558 }
1559
1560
1561 /*
1562 * Publish events using GPEC subsystem
1563 */
1564
1565 static evchan_t *zfs_channel = NULL;
1566
1567 void
1568 zfs_event_post(const char *subclass, const char *operation, nvlist_t *ev_data)
1569 {
1570
1571 if (zfs_channel == NULL)
1572 goto out;
1573
1574 fnvlist_add_string(ev_data, "operation", operation);
1575
1576 (void) sysevent_evc_publish(zfs_channel, subclass, operation,
1577 "com.nexenta", "zfs-kernel", ev_data, EVCH_NOSLEEP);
1578
1579 out:
1580 fnvlist_free(ev_data);
1581 }
1582
1583 static int
1584 zfs_ioc_pool_create(zfs_cmd_t *zc)
1585 {
1586 int error;
1587 nvlist_t *config, *props = NULL;
1588 nvlist_t *rootprops = NULL;
1589 nvlist_t *zplprops = NULL;
1590 nvlist_t *event;
1591
1592 if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1593 zc->zc_iflags, &config))
1594 return (error);
1595
1596 if (zc->zc_nvlist_src_size != 0 && (error =
1597 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1598 zc->zc_iflags, &props))) {
1599 nvlist_free(config);
1600 return (error);
1601 }
1602
1603 if (props) {
1604 nvlist_t *nvl = NULL;
1605 uint64_t version = SPA_VERSION;
1606
1607 (void) nvlist_lookup_uint64(props,
1608 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
1609 if (!SPA_VERSION_IS_SUPPORTED(version)) {
1610 error = SET_ERROR(EINVAL);
1619 return (error);
1620 }
1621 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
1622 }
1623 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1624 error = zfs_fill_zplprops_root(version, rootprops,
1625 zplprops, NULL);
1626 if (error != 0)
1627 goto pool_props_bad;
1628 }
1629
1630 error = spa_create(zc->zc_name, config, props, zplprops);
1631
1632 /*
1633 * Set the remaining root properties
1634 */
1635 if (!error && (error = zfs_set_prop_nvlist(zc->zc_name,
1636 ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
1637 (void) spa_destroy(zc->zc_name);
1638
1639 if (error == 0) {
1640 event = fnvlist_alloc();
1641 fnvlist_add_string(event, "name", zc->zc_name);
1642 fnvlist_add_nvlist(event, "config", config);
1643 if (props != NULL)
1644 fnvlist_add_nvlist(event, "props", props);
1645 zfs_event_post(ZPOOL_EC_STATUS, "create", event);
1646 }
1647
1648 pool_props_bad:
1649 nvlist_free(rootprops);
1650 nvlist_free(zplprops);
1651 nvlist_free(config);
1652 nvlist_free(props);
1653
1654 return (error);
1655 }
1656
1657 static int
1658 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
1659 {
1660 int error;
1661 nvlist_t *event;
1662 zfs_log_history(zc);
1663 error = spa_destroy(zc->zc_name);
1664 if (error == 0) {
1665 zvol_remove_minors(zc->zc_name);
1666 event = fnvlist_alloc();
1667 fnvlist_add_string(event, "pool", zc->zc_name);
1668 zfs_event_post(ZPOOL_EC_STATUS, "destroy", event);
1669 }
1670 return (error);
1671 }
1672
1673 static int
1674 zfs_ioc_pool_import(zfs_cmd_t *zc)
1675 {
1676 nvlist_t *config, *props = NULL;
1677 uint64_t guid;
1678 int error;
1679 nvlist_t *event;
1680
1681 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1682 zc->zc_iflags, &config)) != 0)
1683 return (error);
1684
1685 if (zc->zc_nvlist_src_size != 0 && (error =
1686 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1687 zc->zc_iflags, &props))) {
1688 nvlist_free(config);
1689 return (error);
1690 }
1691
1692 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
1693 guid != zc->zc_guid)
1694 error = SET_ERROR(EINVAL);
1695 else
1696 error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
1697
1698 if (error == 0) {
1699 event = fnvlist_alloc();
1700 fnvlist_add_string(event, "pool", zc->zc_name);
1701 fnvlist_add_uint64(event, "guid", zc->zc_guid);
1702 fnvlist_add_nvlist(event, "config", config);
1703 if (props != NULL)
1704 fnvlist_add_nvlist(event, "props", props);
1705 zfs_event_post(ZPOOL_EC_STATUS, "import", event);
1706 }
1707
1708 if (zc->zc_nvlist_dst != 0) {
1709 int err;
1710
1711 if ((err = put_nvlist(zc, config)) != 0)
1712 error = err;
1713 }
1714
1715 nvlist_free(config);
1716
1717 nvlist_free(props);
1718
1719 return (error);
1720 }
1721
1722 static int
1723 zfs_ioc_pool_export(zfs_cmd_t *zc)
1724 {
1725 int error;
1726 boolean_t force = (boolean_t)zc->zc_cookie;
1727 boolean_t hardforce = (boolean_t)zc->zc_guid;
1728 boolean_t saveconfig = (boolean_t)zc->zc_obj;
1729 nvlist_t *event;
1730
1731 zfs_log_history(zc);
1732 error = spa_export(zc->zc_name, NULL, force, hardforce, saveconfig);
1733 if (error == 0) {
1734 zvol_remove_minors(zc->zc_name);
1735 event = fnvlist_alloc();
1736 fnvlist_add_string(event, "pool", zc->zc_name);
1737 zfs_event_post(ZPOOL_EC_STATUS, "export", event);
1738 }
1739 return (error);
1740 }
1741
1742 static int
1743 zfs_ioc_pool_configs(zfs_cmd_t *zc)
1744 {
1745 nvlist_t *configs;
1746 int error;
1747
1748 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
1749 return (SET_ERROR(EEXIST));
1750
1751 error = put_nvlist(zc, configs);
1752
1753 nvlist_free(configs);
1754
1755 return (error);
1756 }
1757
1758 /*
1831 int error;
1832
1833 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1834 return (error);
1835
1836 if (zc->zc_flags >= POOL_SCRUB_FLAGS_END)
1837 return (SET_ERROR(EINVAL));
1838
1839 if (zc->zc_flags == POOL_SCRUB_PAUSE)
1840 error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE);
1841 else if (zc->zc_cookie == POOL_SCAN_NONE)
1842 error = spa_scan_stop(spa);
1843 else
1844 error = spa_scan(spa, zc->zc_cookie);
1845
1846 spa_close(spa, FTAG);
1847
1848 return (error);
1849 }
1850
1851 /*
1852 * inputs:
1853 * zc_name name of the pool
1854 * zc_cookie trim_cmd_info_t
1855 */
1856 static int
1857 zfs_ioc_pool_trim(zfs_cmd_t *zc)
1858 {
1859 spa_t *spa;
1860 int error;
1861 trim_cmd_info_t tci;
1862
1863 if (ddi_copyin((void *)(uintptr_t)zc->zc_cookie, &tci,
1864 sizeof (tci), 0) == -1)
1865 return (EFAULT);
1866
1867 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1868 return (error);
1869
1870 if (tci.tci_start) {
1871 spa_man_trim(spa, tci.tci_rate);
1872 } else {
1873 spa_man_trim_stop(spa);
1874 }
1875
1876 spa_close(spa, FTAG);
1877
1878 return (error);
1879 }
1880
1881 static int
1882 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
1883 {
1884 spa_t *spa;
1885 int error;
1886
1887 error = spa_open(zc->zc_name, &spa, FTAG);
1888 if (error == 0) {
1889 spa_freeze(spa);
1890 spa_close(spa, FTAG);
1891 }
1892 return (error);
1893 }
1894
1895 static int
1896 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
1897 {
1898 spa_t *spa;
1899 int error;
1900
1901 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2012 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
2013 return (error);
2014 if (dmu_objset_type(os) != DMU_OST_ZFS) {
2015 dmu_objset_rele(os, FTAG);
2016 return (SET_ERROR(EINVAL));
2017 }
2018 error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
2019 sizeof (zc->zc_value));
2020 dmu_objset_rele(os, FTAG);
2021
2022 return (error);
2023 }
2024
2025 static int
2026 zfs_ioc_vdev_add(zfs_cmd_t *zc)
2027 {
2028 spa_t *spa;
2029 int error;
2030 nvlist_t *config, **l2cache, **spares;
2031 uint_t nl2cache = 0, nspares = 0;
2032 nvlist_t *event;
2033
2034 error = spa_open(zc->zc_name, &spa, FTAG);
2035 if (error != 0)
2036 return (error);
2037
2038 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
2039 zc->zc_iflags, &config);
2040 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
2041 &l2cache, &nl2cache);
2042
2043 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
2044 &spares, &nspares);
2045
2046 /*
2047 * A root pool with concatenated devices is not supported.
2048 * Thus, can not add a device to a root pool.
2049 *
2050 * Intent log device can not be added to a rootpool because
2051 * during mountroot, zil is replayed, a seperated log device
2052 * can not be accessed during the mountroot time.
2053 *
2054 * l2cache and spare devices are ok to be added to a rootpool.
2055 */
2056 if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) {
2057 nvlist_free(config);
2058 spa_close(spa, FTAG);
2059 return (SET_ERROR(EDOM));
2060 }
2061
2062 if (error == 0) {
2063 error = spa_vdev_add(spa, config);
2064 if (error == 0) {
2065 event = fnvlist_alloc();
2066 fnvlist_add_string(event, "pool", zc->zc_name);
2067 fnvlist_add_nvlist(event, "config", config);
2068 zfs_event_post(ZPOOL_EC_STATUS, "add", event);
2069
2070 }
2071 nvlist_free(config);
2072 }
2073 spa_close(spa, FTAG);
2074 return (error);
2075 }
2076
2077 /*
2078 * inputs:
2079 * zc_name name of the pool
2080 * zc_nvlist_conf nvlist of devices to remove
2081 * zc_cookie to stop the remove?
2082 */
2083 static int
2084 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
2085 {
2086 spa_t *spa;
2087 int error;
2088 nvlist_t *event;
2089
2090 error = spa_open(zc->zc_name, &spa, FTAG);
2091 if (error != 0)
2092 return (error);
2093 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
2094 if (error == 0) {
2095 event = fnvlist_alloc();
2096 fnvlist_add_string(event, "pool", zc->zc_name);
2097 fnvlist_add_uint64(event, "guid", zc->zc_guid);
2098 zfs_event_post(ZPOOL_EC_STATUS, "remove", event);
2099 }
2100
2101 spa_close(spa, FTAG);
2102 return (error);
2103 }
2104
2105 static int
2106 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
2107 {
2108 spa_t *spa;
2109 int error;
2110 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
2111
2112 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2113 return (error);
2114 switch (zc->zc_cookie) {
2115 case VDEV_STATE_ONLINE:
2116 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
2117 break;
2118
2119 case VDEV_STATE_OFFLINE:
2120 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
2121 break;
2122
2123 case VDEV_STATE_FAULTED:
2124 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
2125 zc->zc_obj != VDEV_AUX_EXTERNAL &&
2126 zc->zc_obj != VDEV_AUX_OPEN_FAILED)
2127 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
2128
2129 error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
2130 break;
2131
2132 case VDEV_STATE_DEGRADED:
2133 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
2134 zc->zc_obj != VDEV_AUX_EXTERNAL)
2135 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
2136
2137 error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
2138 break;
2139
2140 default:
2141 error = SET_ERROR(EINVAL);
2142 }
2143 zc->zc_cookie = newstate;
2144 spa_close(spa, FTAG);
2145 return (error);
2146 }
2147
2148 static int
2149 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
2150 {
2151 spa_t *spa;
2152 int replacing = zc->zc_cookie;
2153 nvlist_t *config;
2154 nvlist_t *event;
2155 int error;
2156
2157 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2158 return (error);
2159
2160 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
2161 zc->zc_iflags, &config)) == 0) {
2162 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
2163 if (error == 0) {
2164 event = fnvlist_alloc();
2165 fnvlist_add_string(event, "pool", zc->zc_name);
2166 fnvlist_add_nvlist(event, "config", config);
2167 fnvlist_add_int32(event, "replacing", replacing);
2168 zfs_event_post(ZPOOL_EC_STATUS, "attach", event);
2169 }
2170 nvlist_free(config);
2171 }
2172
2173 spa_close(spa, FTAG);
2174 return (error);
2175 }
2176
2177 static int
2178 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
2179 {
2180 spa_t *spa;
2181 int error;
2182 nvlist_t *event;
2183
2184 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2185 return (error);
2186
2187 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
2188 if (error == 0) {
2189 event = fnvlist_alloc();
2190 fnvlist_add_string(event, "pool", zc->zc_name);
2191 fnvlist_add_uint64(event, "guid", zc->zc_guid);
2192 zfs_event_post(ZPOOL_EC_STATUS, "detach", event);
2193 }
2194 spa_close(spa, FTAG);
2195 return (error);
2196 }
2197
2198 static int
2199 zfs_ioc_vdev_split(zfs_cmd_t *zc)
2200 {
2201 spa_t *spa;
2202 nvlist_t *config, *props = NULL;
2203 int error;
2204 boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
2205
2206 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2207 return (error);
2208
2209 if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
2210 zc->zc_iflags, &config)) {
2211 spa_close(spa, FTAG);
2212 return (error);
2213 }
2214
2215 if (zc->zc_nvlist_src_size != 0 && (error =
2216 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2217 zc->zc_iflags, &props))) {
2218 spa_close(spa, FTAG);
2219 nvlist_free(config);
2220 return (error);
2221 }
2222
2223 error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
2224
2225 spa_close(spa, FTAG);
2226
2227 nvlist_free(config);
2228 nvlist_free(props);
2229
2230 return (error);
2231 }
2232
2233 static int
2234 zfs_ioc_vdev_setl2adddt(zfs_cmd_t *zc)
2235 {
2236 spa_t *spa;
2237 int error;
2238 uint64_t guid = zc->zc_guid;
2239 char *l2ad_ddt = zc->zc_value;
2240
2241 error = spa_open(zc->zc_name, &spa, FTAG);
2242 if (error != 0)
2243 return (error);
2244
2245 error = spa_vdev_setl2adddt(spa, guid, l2ad_ddt);
2246 spa_close(spa, FTAG);
2247 return (error);
2248 }
2249
2250
2251 static int
2252 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
2253 {
2254 spa_t *spa;
2255 char *path = zc->zc_value;
2256 uint64_t guid = zc->zc_guid;
2257 int error;
2258
2259 error = spa_open(zc->zc_name, &spa, FTAG);
2260 if (error != 0)
2261 return (error);
2262
2263 error = spa_vdev_setpath(spa, guid, path);
2264 spa_close(spa, FTAG);
2265 return (error);
2266 }
2267
2268 static int
2269 zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
2270 {
2271 spa_t *spa;
2310 error = put_nvlist(zc, nv);
2311 nvlist_free(nv);
2312 }
2313
2314 return (error);
2315 }
2316
2317 /*
2318 * inputs:
2319 * zc_name name of filesystem
2320 * zc_nvlist_dst_size size of buffer for property nvlist
2321 *
2322 * outputs:
2323 * zc_objset_stats stats
2324 * zc_nvlist_dst property nvlist
2325 * zc_nvlist_dst_size size of property nvlist
2326 */
2327 static int
2328 zfs_ioc_objset_stats(zfs_cmd_t *zc)
2329 {
2330 objset_t *os = NULL;
2331 int error;
2332
2333 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
2334 if (error == 0) {
2335 error = zfs_ioc_objset_stats_impl(zc, os);
2336 dmu_objset_rele(os, FTAG);
2337 }
2338
2339 return (error);
2340 }
2341
2342 /*
2343 * inputs:
2344 * zc_name name of filesystem
2345 * zc_nvlist_dst_size size of buffer for property nvlist
2346 *
2347 * outputs:
2348 * zc_nvlist_dst received property nvlist
2349 * zc_nvlist_dst_size size of received property nvlist
2350 *
2419 */
2420 if (zc->zc_nvlist_dst != NULL &&
2421 !zc->zc_objset_stats.dds_inconsistent &&
2422 dmu_objset_type(os) == DMU_OST_ZFS) {
2423 nvlist_t *nv;
2424
2425 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2426 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
2427 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
2428 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
2429 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
2430 err = put_nvlist(zc, nv);
2431 nvlist_free(nv);
2432 } else {
2433 err = SET_ERROR(ENOENT);
2434 }
2435 dmu_objset_rele(os, FTAG);
2436 return (err);
2437 }
2438
2439 /*
2440 * inputs:
2441 * zc_name name of filesystem
2442 * zc_cookie zap cursor
2443 * zc_nvlist_dst_size size of buffer for property nvlist
2444 *
2445 * outputs:
2446 * zc_name name of next filesystem
2447 * zc_cookie zap cursor
2448 * zc_objset_stats stats
2449 * zc_nvlist_dst property nvlist
2450 * zc_nvlist_dst_size size of property nvlist
2451 */
2452 static int
2453 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
2454 {
2455 objset_t *os;
2456 int error;
2457 char *p;
2458 size_t orig_len = strlen(zc->zc_name);
2691 err = -1;
2692 }
2693
2694 return (err);
2695 }
2696
2697 /*
2698 * This function is best effort. If it fails to set any of the given properties,
2699 * it continues to set as many as it can and returns the last error
2700 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2701 * with the list of names of all the properties that failed along with the
2702 * corresponding error numbers.
2703 *
2704 * If every property is set successfully, zero is returned and errlist is not
2705 * modified.
2706 */
2707 int
2708 zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
2709 nvlist_t *errlist)
2710 {
2711 spa_t *spa = NULL;
2712 nvpair_t *pair;
2713 nvpair_t *propval;
2714 int rv = 0;
2715 uint64_t intval;
2716 char *strval;
2717 nvlist_t *genericnvl = fnvlist_alloc();
2718 nvlist_t *retrynvl = fnvlist_alloc();
2719 zfsvfs_t *zfsvfs;
2720 boolean_t set_worm = B_FALSE;
2721 boolean_t set_wbc_mode = B_FALSE;
2722 boolean_t wbc_walk_locked = B_FALSE;
2723 boolean_t set_dedup = B_FALSE;
2724
2725 if ((rv = spa_open(dsname, &spa, FTAG)) != 0)
2726 return (rv);
2727
2728 retry:
2729 pair = NULL;
2730 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2731 const char *propname = nvpair_name(pair);
2732 zfs_prop_t prop = zfs_name_to_prop(propname);
2733 int err = 0;
2734
2735 if (!set_worm && (strcmp(propname, "nms:worm") == 0)) {
2736 set_worm = B_TRUE;
2737 }
2738
2739 /*
2740 * If 'wbc_mode' is going to be changed, then we need to
2741 * do some actions before 'set'
2742 */
2743 if (prop == ZFS_PROP_WBC_MODE)
2744 set_wbc_mode = B_TRUE;
2745
2746 /*
2747 *
2748 */
2749 if (prop == ZFS_PROP_DEDUP)
2750 set_dedup = B_TRUE;
2751
2752 /* decode the property value */
2753 propval = pair;
2754 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2755 nvlist_t *attrs;
2756 attrs = fnvpair_value_nvlist(pair);
2757 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2758 &propval) != 0)
2759 err = SET_ERROR(EINVAL);
2760 }
2761
2762 /* Validate value type */
2763 if (err == 0 && prop == ZPROP_INVAL) {
2764 if (zfs_prop_user(propname)) {
2765 if (nvpair_type(propval) != DATA_TYPE_STRING)
2766 err = SET_ERROR(EINVAL);
2767 } else if (zfs_prop_userquota(propname)) {
2768 if (nvpair_type(propval) !=
2769 DATA_TYPE_UINT64_ARRAY)
2770 err = SET_ERROR(EINVAL);
2771 } else {
2817 * This may be a spurious error caused by
2818 * receiving quota and reservation out of order.
2819 * Try again in a second pass.
2820 */
2821 err = nvlist_add_nvpair(retrynvl, pair);
2822 }
2823 }
2824
2825 if (err != 0) {
2826 if (errlist != NULL)
2827 fnvlist_add_int32(errlist, propname, err);
2828 rv = err;
2829 }
2830 }
2831
2832 if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
2833 nvl = retrynvl;
2834 goto retry;
2835 }
2836
2837 /*
2838 * Deduplication and WBC cannot be used together
2839 * This code returns error also for case when
2840 * WBC is ON, DEDUP is off and a user tries
2841 * to do DEDUP=off, because in this case the code
2842 * will be more complex, but benefit is too small
2843 */
2844 if (set_wbc_mode && set_dedup) {
2845 nvlist_free(genericnvl);
2846 nvlist_free(retrynvl);
2847 spa_close(spa, FTAG);
2848
2849 return (SET_ERROR(EKZFS_WBCCONFLICT));
2850 }
2851
2852 /*
2853 * Additional actions before set wbc_mode:
2854 * - first need to try to lock WBC-walking, to stop migration and
2855 * avoid the openning of new migration window
2856 * - second step (from sync-context): if migration window
2857 * is active it will be purged, to correctly add/remove WBC-instance
2858 */
2859 if (set_wbc_mode && wbc_walk_lock(spa) == 0)
2860 wbc_walk_locked = B_TRUE;
2861
2862 if (!nvlist_empty(genericnvl) &&
2863 dsl_props_set(dsname, source, genericnvl) != 0) {
2864 /*
2865 * If this fails, we still want to set as many properties as we
2866 * can, so try setting them individually.
2867 */
2868 pair = NULL;
2869 while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
2870 const char *propname = nvpair_name(pair);
2871 int err = 0;
2872
2873 propval = pair;
2874 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2875 nvlist_t *attrs;
2876 attrs = fnvpair_value_nvlist(pair);
2877 propval = fnvlist_lookup_nvpair(attrs,
2878 ZPROP_VALUE);
2879 }
2880
2881 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2883 err = dsl_prop_set_string(dsname, propname,
2884 source, strval);
2885 } else {
2886 intval = fnvpair_value_uint64(propval);
2887 err = dsl_prop_set_int(dsname, propname, source,
2888 intval);
2889 }
2890
2891 if (err != 0) {
2892 if (errlist != NULL) {
2893 fnvlist_add_int32(errlist, propname,
2894 err);
2895 }
2896 rv = err;
2897 }
2898 }
2899 }
2900 nvlist_free(genericnvl);
2901 nvlist_free(retrynvl);
2902
2903 if (wbc_walk_locked)
2904 wbc_walk_unlock(spa);
2905
2906 if (set_worm && getzfsvfs(dsname, &zfsvfs) == 0) {
2907 if (zfs_is_wormed(dsname)) {
2908 zfsvfs->z_isworm = B_TRUE;
2909 } else {
2910 zfsvfs->z_isworm = B_FALSE;
2911 }
2912 VFS_RELE(zfsvfs->z_vfs);
2913 }
2914
2915 if (rv == 0)
2916 autosnap_force_snap_by_name(dsname, NULL, B_FALSE);
2917
2918 spa_close(spa, FTAG);
2919
2920 return (rv);
2921 }
2922
2923 /*
2924 * Check that all the properties are valid user properties.
2925 */
2926 static int
2927 zfs_check_userprops(const char *fsname, nvlist_t *nvl)
2928 {
2929 nvpair_t *pair = NULL;
2930 int error = 0;
2931
2932 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2933 const char *propname = nvpair_name(pair);
2934
2935 if (!zfs_prop_user(propname) ||
2936 nvpair_type(pair) != DATA_TYPE_STRING)
2937 return (SET_ERROR(EINVAL));
2938
2939 if (error = zfs_secpolicy_write_perms(fsname,
2940 ZFS_DELEG_PERM_USERPROP, CRED()))
2941 return (error);
2942
2943 if (strlen(propname) >= ZAP_MAXNAMELEN)
2944 return (SET_ERROR(ENAMETOOLONG));
2945
2946 if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN)
2947 return (SET_ERROR(E2BIG));
2948 }
2949 return (0);
2950 }
2951
2952 static void
2953 props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
2954 {
2955 nvpair_t *pair;
2956
2957 VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2958
2959 pair = NULL;
2960 while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
2961 if (nvlist_exists(skipped, nvpair_name(pair)))
2962 continue;
2963
2964 VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
2965 }
2966 }
2967
2968 static int
2969 clear_received_props(const char *dsname, nvlist_t *props,
2970 nvlist_t *skipped)
2971 {
2972 int err = 0;
2973 nvlist_t *cleared_props = NULL;
2974 props_skip(props, skipped, &cleared_props);
2975 if (!nvlist_empty(cleared_props)) {
2976 /*
2977 * Acts on local properties until the dataset has received
2978 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2979 */
2980 zprop_source_t flags = (ZPROP_SRC_NONE |
2981 (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0));
2982 err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL);
2983 }
2984 nvlist_free(cleared_props);
2985 return (err);
2986 }
2987
2988 int
2989 zfs_ioc_set_prop_impl(char *name, nvlist_t *props,
2990 boolean_t received, nvlist_t **out_errors)
2991 {
2992 int error = 0;
2993 nvlist_t *errors, *event;
2994 zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
2995 ZPROP_SRC_LOCAL);
2996
2997 ASSERT(props != NULL);
2998
2999 if (received) {
3000 nvlist_t *origprops;
3001
3002 if (dsl_prop_get_received(name, &origprops) == 0) {
3003 (void) clear_received_props(name, origprops, props);
3004 nvlist_free(origprops);
3005 }
3006
3007 error = dsl_prop_set_hasrecvd(name);
3008 }
3009
3010 errors = fnvlist_alloc();
3011 if (error == 0)
3012 error = zfs_set_prop_nvlist(name, source, props, errors);
3013
3014 event = fnvlist_alloc();
3015 fnvlist_add_string(event, "fsname", name);
3016 fnvlist_add_nvlist(event, "properties", props);
3017 fnvlist_add_nvlist(event, "errors", errors);
3018 zfs_event_post(ZFS_EC_STATUS, "set", event);
3019
3020 if (out_errors != NULL)
3021 *out_errors = fnvlist_dup(errors);
3022
3023 fnvlist_free(errors);
3024
3025 return (error);
3026 }
3027
3028 /*
3029 * XXX This functionality will be removed after integration of
3030 * functionality, that does the same via zfs-channel programm.
3031 * The zfs-channel programm implementation is being developed
3032 * by Delphix.
3033 *
3034 * This functions sets provided props for provided datasets
3035 * in one sync-round. There are some requirements:
3036 * - all datasets should belong to the same pool
3037 * - only user-properties
3038 *
3039 * This function does all or nothing.
3040 *
3041 * inputs:
3042 * zc_nvlist_src{_size} nvlist of datasets and properties to apply
3043 *
3044 * outputs:
3045 * zc_nvlist_dst{_size} error for each unapplied property
3046 */
3047 /* ARGSUSED */
3048 static int
3049 zfs_ioc_set_prop_mds(const char *pool_name, nvlist_t *dss_props,
3050 nvlist_t *outnvl)
3051 {
3052 int error = 0;
3053 spa_t *spa = NULL;
3054 nvpair_t *pair = NULL;
3055 size_t pool_name_len;
3056 size_t total_num_props = 0;
3057
3058 ASSERT(dss_props != NULL);
3059
3060 if (nvlist_empty(dss_props))
3061 return (SET_ERROR(ENODATA));
3062
3063 pool_name_len = strlen(pool_name);
3064 while ((pair = nvlist_next_nvpair(dss_props, pair)) != NULL) {
3065 nvlist_t *props;
3066 nvpair_t *prop_nvp = NULL;
3067 const char *ds_name;
3068
3069 ds_name = nvpair_name(pair);
3070 if (strncmp(pool_name, ds_name, pool_name_len) == 0) {
3071 char c = ds_name[pool_name_len];
3072 if (c != '\0' && c != '/' && c != '@')
3073 return (SET_ERROR(EXDEV));
3074 }
3075
3076 if (nvpair_type(pair) != DATA_TYPE_NVLIST)
3077 return (SET_ERROR(EINVAL));
3078
3079 props = fnvpair_value_nvlist(pair);
3080 while ((prop_nvp = nvlist_next_nvpair(props,
3081 prop_nvp)) != NULL) {
3082 const char *propname = nvpair_name(prop_nvp);
3083 /* Only user-props */
3084 if (!zfs_prop_user(propname) ||
3085 nvpair_type(prop_nvp) != DATA_TYPE_STRING)
3086 return (SET_ERROR(EINVAL));
3087
3088 /*
3089 * We count the number to use it
3090 * later to check for ENOSPC
3091 */
3092 total_num_props++;
3093 }
3094 }
3095
3096 if ((error = spa_open(pool_name, &spa, FTAG)) != 0)
3097 return (error);
3098
3099 error = dsl_props_set_mds(pool_name, dss_props, total_num_props);
3100 spa_close(spa, FTAG);
3101 if (error == 0) {
3102 nvlist_t *event = fnvlist_alloc();
3103 fnvlist_add_nvlist(event, "properties", dss_props);
3104 zfs_event_post(ZFS_EC_STATUS, "set-mds", event);
3105 }
3106
3107 return (error);
3108 }
3109
3110 /*
3111 * inputs:
3112 * zc_name name of filesystem
3113 * zc_value name of property to set
3114 * zc_nvlist_src{_size} nvlist of properties to apply
3115 * zc_cookie received properties flag
3116 *
3117 * outputs:
3118 * zc_nvlist_dst{_size} error for each unapplied received property
3119 */
3120 static int
3121 zfs_ioc_set_prop(zfs_cmd_t *zc)
3122 {
3123 nvlist_t *nvl;
3124 boolean_t received = zc->zc_cookie;
3125 nvlist_t *errors = NULL;
3126 int error;
3127
3128 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
3129 zc->zc_iflags, &nvl)) != 0)
3130 return (error);
3131
3132 error = zfs_ioc_set_prop_impl(zc->zc_name, nvl, received, &errors);
3133
3134 if (zc->zc_nvlist_dst != NULL && errors != NULL) {
3135 (void) put_nvlist(zc, errors);
3136 }
3137
3138 nvlist_free(errors);
3139 nvlist_free(nvl);
3140 return (error);
3141 }
3142
3143 /*
3144 * inputs:
3145 * zc_name name of filesystem
3146 * zc_value name of property to inherit
3147 * zc_cookie revert to received value if TRUE
3148 *
3149 * outputs: none
3150 */
3151 static int
3152 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
3153 {
3205 * Only check this in the non-received case. We want to allow
3206 * 'inherit -S' to revert non-inheritable properties like quota
3207 * and reservation to the received or default values even though
3208 * they are not considered inheritable.
3209 */
3210 if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
3211 return (SET_ERROR(EINVAL));
3212 }
3213
3214 /* property name has been validated by zfs_secpolicy_inherit_prop() */
3215 return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source));
3216 }
3217
3218 static int
3219 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
3220 {
3221 nvlist_t *props;
3222 spa_t *spa;
3223 int error;
3224 nvpair_t *pair;
3225 nvlist_t *event;
3226 if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
3227 zc->zc_iflags, &props))
3228 return (error);
3229
3230 /*
3231 * If the only property is the configfile, then just do a spa_lookup()
3232 * to handle the faulted case.
3233 */
3234 pair = nvlist_next_nvpair(props, NULL);
3235 if (pair != NULL && strcmp(nvpair_name(pair),
3236 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
3237 nvlist_next_nvpair(props, pair) == NULL) {
3238 mutex_enter(&spa_namespace_lock);
3239 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
3240 spa_configfile_set(spa, props, B_FALSE);
3241 spa_config_sync(spa, B_FALSE, B_TRUE);
3242 }
3243 mutex_exit(&spa_namespace_lock);
3244 if (spa != NULL) {
3245 nvlist_free(props);
3246 return (0);
3247 }
3248 }
3249
3250 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
3251 nvlist_free(props);
3252 return (error);
3253 }
3254
3255 error = spa_prop_set(spa, props);
3256
3257 if (error == 0) {
3258 event = fnvlist_alloc();
3259 fnvlist_add_string(event, "pool", zc->zc_name);
3260 fnvlist_add_nvlist(event, "props", props);
3261 zfs_event_post(ZPOOL_EC_STATUS, "set", event);
3262 }
3263
3264 nvlist_free(props);
3265 spa_close(spa, FTAG);
3266
3267 return (error);
3268 }
3269
3270 static int
3271 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
3272 {
3273 spa_t *spa;
3274 int error;
3275 nvlist_t *nvp = NULL;
3276
3277 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
3278 /*
3279 * If the pool is faulted, there may be properties we can still
3280 * get (such as altroot and cachefile), so attempt to get them
3281 * anyway.
3282 */
3283 mutex_enter(&spa_namespace_lock);
3365 error = put_nvlist(zc, nvp);
3366 nvlist_free(nvp);
3367 }
3368
3369 return (error);
3370 }
3371
3372 /* ARGSUSED */
3373 static void
3374 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
3375 {
3376 zfs_creat_t *zct = arg;
3377
3378 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
3379 }
3380
3381 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
3382
3383 /*
3384 * inputs:
3385 * createprops list of properties requested by creator
3386 * default_zplver zpl version to use if unspecified in createprops
3387 * fuids_ok fuids allowed in this version of the spa?
3388 * os parent objset pointer (NULL if root fs)
3389 * fuids_ok fuids allowed in this version of the spa?
3390 * sa_ok SAs allowed in this version of the spa?
3391 * createprops list of properties requested by creator
3392 *
3393 * outputs:
3394 * zplprops values for the zplprops we attach to the master node object
3395 * is_ci true if requested file system will be purely case-insensitive
3396 *
3397 * Determine the settings for utf8only, normalization and
3398 * casesensitivity. Specific values may have been requested by the
3399 * creator and/or we can inherit values from the parent dataset. If
3400 * the file system is of too early a vintage, a creator can not
3401 * request settings for these properties, even if the requested
3402 * setting is the default value. We don't actually want to create dsl
3403 * properties for these, so remove them from the source nvlist after
3404 * processing.
3405 */
3406 static int
3407 zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
3445 */
3446 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
3447 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
3448 (zplver >= ZPL_VERSION_SA && !sa_ok) ||
3449 (zplver < ZPL_VERSION_NORMALIZATION &&
3450 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
3451 sense != ZFS_PROP_UNDEFINED)))
3452 return (SET_ERROR(ENOTSUP));
3453
3454 /*
3455 * Put the version in the zplprops
3456 */
3457 VERIFY(nvlist_add_uint64(zplprops,
3458 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
3459
3460 if (norm == ZFS_PROP_UNDEFINED)
3461 VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0);
3462 VERIFY(nvlist_add_uint64(zplprops,
3463 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
3464
3465 if (os) {
3466 if (zfs_is_wormed_ds(dmu_objset_ds(os)))
3467 return (SET_ERROR(EPERM));
3468 }
3469
3470 /*
3471 * If we're normalizing, names must always be valid UTF-8 strings.
3472 */
3473 if (norm)
3474 u8 = 1;
3475 if (u8 == ZFS_PROP_UNDEFINED)
3476 VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0);
3477 VERIFY(nvlist_add_uint64(zplprops,
3478 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
3479
3480 if (sense == ZFS_PROP_UNDEFINED)
3481 VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0);
3482 VERIFY(nvlist_add_uint64(zplprops,
3483 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
3484
3485 if (is_ci)
3486 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
3487
3488 return (0);
3489 }
3547 }
3548
3549 /*
3550 * innvl: {
3551 * "type" -> dmu_objset_type_t (int32)
3552 * (optional) "props" -> { prop -> value }
3553 * }
3554 *
3555 * outnvl: propname -> error code (int32)
3556 */
3557 static int
3558 zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3559 {
3560 int error = 0;
3561 zfs_creat_t zct = { 0 };
3562 nvlist_t *nvprops = NULL;
3563 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
3564 int32_t type32;
3565 dmu_objset_type_t type;
3566 boolean_t is_insensitive = B_FALSE;
3567 char parent[MAXNAMELEN];
3568 nvlist_t *event;
3569
3570 if (nvlist_lookup_int32(innvl, "type", &type32) != 0)
3571 return (SET_ERROR(EINVAL));
3572 type = type32;
3573 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3574
3575 switch (type) {
3576 case DMU_OST_ZFS:
3577 cbfunc = zfs_create_cb;
3578 break;
3579
3580 case DMU_OST_ZVOL:
3581 cbfunc = zvol_create_cb;
3582 break;
3583
3584 default:
3585 cbfunc = NULL;
3586 break;
3587 }
3588 if (strchr(fsname, '@') ||
3589 strchr(fsname, '%'))
3590 return (SET_ERROR(EINVAL));
3591
3592 zct.zct_props = nvprops;
3593
3594 if (cbfunc == NULL)
3595 return (SET_ERROR(EINVAL));
3596
3597 if (zfs_get_parent(fsname, parent, MAXNAMELEN) == 0 &&
3598 zfs_is_wormed(parent)) {
3599 return (SET_ERROR(EPERM));
3600 }
3601
3602 if (type == DMU_OST_ZVOL) {
3603 uint64_t volsize, volblocksize;
3604
3605 if (nvprops == NULL)
3606 return (SET_ERROR(EINVAL));
3607 if (nvlist_lookup_uint64(nvprops,
3608 zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0)
3609 return (SET_ERROR(EINVAL));
3610
3611 if ((error = nvlist_lookup_uint64(nvprops,
3612 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
3613 &volblocksize)) != 0 && error != ENOENT)
3614 return (SET_ERROR(EINVAL));
3615
3616 if (error != 0)
3617 volblocksize = zfs_prop_default_numeric(
3618 ZFS_PROP_VOLBLOCKSIZE);
3619
3620 if ((error = zvol_check_volblocksize(
3621 volblocksize)) != 0 ||
3622 (error = zvol_check_volsize(volsize,
3623 volblocksize)) != 0)
3624 return (error);
3625 } else if (type == DMU_OST_ZFS) {
3626 /*
3627 * We have to have normalization and
3628 * case-folding flags correct when we do the
3629 * file system creation, so go figure them out
3630 * now.
3631 */
3632 VERIFY(nvlist_alloc(&zct.zct_zplprops,
3633 NV_UNIQUE_NAME, KM_SLEEP) == 0);
3634 error = zfs_fill_zplprops(fsname, nvprops,
3635 zct.zct_zplprops, &is_insensitive);
3636 if (error != 0) {
3637 nvlist_free(zct.zct_zplprops);
3638 return (error);
3639 }
3640 }
3641
3642 error = dmu_objset_create(fsname, type,
3643 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
3644 nvlist_free(zct.zct_zplprops);
3645
3646 /*
3647 * It would be nice to do this atomically.
3648 */
3649 if (error == 0) {
3650 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3651 nvprops, outnvl);
3652 if (error != 0)
3653 (void) dsl_destroy_head(fsname);
3654 }
3655
3656 if (error == 0) {
3657 event = fnvlist_alloc();
3658 fnvlist_add_string(event, "fsname", fsname);
3659 fnvlist_add_int32(event, "type", type);
3660 if (nvprops != NULL)
3661 fnvlist_add_nvlist(event, "properties", nvprops);
3662 zfs_event_post(ZFS_EC_STATUS, "create", event);
3663 }
3664
3665 return (error);
3666 }
3667
3668 /*
3669 * innvl: {
3670 * "origin" -> name of origin snapshot
3671 * (optional) "props" -> { prop -> value }
3672 * }
3673 *
3674 * outnvl: propname -> error code (int32)
3675 */
3676 static int
3677 zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3678 {
3679 int error = 0;
3680 nvlist_t *nvprops = NULL;
3681 char *origin_name, *origin_snap;
3682 nvlist_t *event;
3683
3684 if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0)
3685 return (SET_ERROR(EINVAL));
3686
3687 origin_snap = strchr(origin_name, '@');
3688 if (!origin_snap)
3689 return (SET_ERROR(EINVAL));
3690
3691 if (autosnap_check_name(origin_snap))
3692 return (SET_ERROR(EPERM));
3693
3694 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3695
3696 if (strchr(fsname, '@') ||
3697 strchr(fsname, '%'))
3698 return (SET_ERROR(EINVAL));
3699
3700 if (dataset_namecheck(origin_name, NULL, NULL) != 0)
3701 return (SET_ERROR(EINVAL));
3702
3703 error = dmu_objset_clone(fsname, origin_name);
3704 if (error != 0)
3705 return (error);
3706
3707 /*
3708 * It would be nice to do this atomically.
3709 */
3710 if (error == 0) {
3711 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3712 nvprops, outnvl);
3713 if (error != 0)
3714 (void) dsl_destroy_head(fsname);
3715 }
3716
3717 if (error == 0) {
3718 event = fnvlist_alloc();
3719 fnvlist_add_string(event, "origin", origin_name);
3720 fnvlist_add_string(event, "fsname", fsname);
3721 if (nvprops != NULL)
3722 fnvlist_add_nvlist(event, "properties", nvprops);
3723 zfs_event_post(ZFS_EC_STATUS, "clone", event);
3724 }
3725
3726 return (error);
3727 }
3728
3729 /*
3730 * innvl: {
3731 * "snaps" -> { snapshot1, snapshot2 }
3732 * (optional) "props" -> { prop -> value (string) }
3733 * }
3734 *
3735 * outnvl: snapshot -> error code (int32)
3736 */
3737 static int
3738 zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3739 {
3740 nvlist_t *snaps;
3741 nvlist_t *props = NULL;
3742 int error, poollen;
3743 nvpair_t *pair;
3744 nvlist_t *event;
3745
3746 (void) nvlist_lookup_nvlist(innvl, "props", &props);
3747 if ((error = zfs_check_userprops(poolname, props)) != 0)
3748 return (error);
3749
3750 if (!nvlist_empty(props) &&
3751 zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS))
3752 return (SET_ERROR(ENOTSUP));
3753
3754 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
3755 return (SET_ERROR(EINVAL));
3756 poollen = strlen(poolname);
3757 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3758 pair = nvlist_next_nvpair(snaps, pair)) {
3759 const char *name = nvpair_name(pair);
3760 const char *cp = strchr(name, '@');
3761
3762 /*
3763 * The snap name must contain an @, and the part after it must
3764 * contain only valid characters.
3765 */
3766 if (cp == NULL ||
3767 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3768 return (SET_ERROR(EINVAL));
3769
3770 if (autosnap_check_name(cp))
3771 return (EINVAL);
3772
3773 /*
3774 * The snap must be in the specified pool.
3775 */
3776 if (strncmp(name, poolname, poollen) != 0 ||
3777 (name[poollen] != '/' && name[poollen] != '@'))
3778 return (SET_ERROR(EXDEV));
3779
3780 /* This must be the only snap of this fs. */
3781 for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair);
3782 pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) {
3783 if (strncmp(name, nvpair_name(pair2), cp - name + 1)
3784 == 0) {
3785 return (SET_ERROR(EXDEV));
3786 }
3787 }
3788 }
3789
3790 error = dsl_dataset_snapshot(snaps, props, outnvl);
3791
3792 event = fnvlist_alloc();
3793 fnvlist_add_nvlist(event, "snaps", snaps);
3794 fnvlist_add_nvlist(event, "errors", outnvl);
3795 fnvlist_add_string(event, "pool", poolname);
3796 zfs_event_post(ZFS_EC_STATUS, "snapshot", event);
3797
3798 return (error);
3799 }
3800
3801 /*
3802 * innvl: "message" -> string
3803 */
3804 /* ARGSUSED */
3805 static int
3806 zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
3807 {
3808 char *message;
3809 spa_t *spa;
3810 int error;
3811 char *poolname;
3812
3813 /*
3814 * The poolname in the ioctl is not set, we get it from the TSD,
3815 * which was set at the end of the last successful ioctl that allows
3816 * logging. The secpolicy func already checked that it is set.
3817 * Only one log ioctl is allowed after each successful ioctl, so
3895 zfs_destroy_unmount_origin(const char *fsname)
3896 {
3897 int error;
3898 objset_t *os;
3899 dsl_dataset_t *ds;
3900
3901 error = dmu_objset_hold(fsname, FTAG, &os);
3902 if (error != 0)
3903 return;
3904 ds = dmu_objset_ds(os);
3905 if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) {
3906 char originname[ZFS_MAX_DATASET_NAME_LEN];
3907 dsl_dataset_name(ds->ds_prev, originname);
3908 dmu_objset_rele(os, FTAG);
3909 zfs_unmount_snap(originname);
3910 } else {
3911 dmu_objset_rele(os, FTAG);
3912 }
3913 }
3914
3915 static int
3916 zfs_destroy_check_autosnap(spa_t *spa, const char *name)
3917 {
3918 const char *snap = strchr(name, '@');
3919
3920 if (snap == NULL)
3921 return (EINVAL);
3922
3923 if (autosnap_check_name(snap)) {
3924 int err = autosnap_check_for_destroy(
3925 spa_get_autosnap(spa), name);
3926
3927 if (err != 0)
3928 return (EBUSY);
3929 }
3930
3931 return (0);
3932 }
3933
3934 /*
3935 * innvl: {
3936 * "snaps" -> { snapshot1, snapshot2 }
3937 * (optional boolean) "defer"
3938 * }
3939 *
3940 * outnvl: snapshot -> error code (int32)
3941 *
3942 */
3943 /* ARGSUSED */
3944 static int
3945 zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3946 {
3947 nvlist_t *snaps;
3948 nvpair_t *pair;
3949 boolean_t defer;
3950 int error = 0;
3951 nvlist_t *event;
3952 spa_t *spa;
3953
3954 if (zfs_is_wormed(poolname))
3955 return (SET_ERROR(EPERM));
3956
3957 if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
3958 return (SET_ERROR(EINVAL));
3959 defer = nvlist_exists(innvl, "defer");
3960
3961 error = spa_open(poolname, &spa, FTAG);
3962 if (spa == NULL)
3963 return (error);
3964
3965 for (pair = nvlist_next_nvpair(snaps, NULL);
3966 pair != NULL; pair = nvlist_next_nvpair(snaps, pair)) {
3967 error = zfs_destroy_check_autosnap(spa, nvpair_name(pair));
3968 if (error)
3969 fnvlist_add_int32(outnvl, nvpair_name(pair), error);
3970 }
3971
3972 spa_close(spa, FTAG);
3973
3974 if (error)
3975 return (error);
3976
3977 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3978 pair = nvlist_next_nvpair(snaps, pair)) {
3979 zfs_unmount_snap(nvpair_name(pair));
3980 }
3981
3982 error = dsl_destroy_snapshots_nvl(snaps, defer, outnvl);
3983
3984 if (error == 0) {
3985 event = fnvlist_alloc();
3986 fnvlist_add_nvlist(event, "snaps", snaps);
3987 fnvlist_add_nvlist(event, "errors", outnvl);
3988 zfs_event_post(ZFS_EC_STATUS, "destroy_snaps", event);
3989 }
3990
3991 return (error);
3992 }
3993
3994 /*
3995 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3996 * All bookmarks must be in the same pool.
3997 *
3998 * innvl: {
3999 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
4000 * }
4001 *
4002 * outnvl: bookmark -> error code (int32)
4003 *
4004 */
4005 /* ARGSUSED */
4006 static int
4007 zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
4008 {
4009 for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
4010 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
4011 char *snap_name;
4107 memlimit = ZCP_DEFAULT_MEMLIMIT;
4108 }
4109 if (0 != nvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST, &nvarg)) {
4110 return (EINVAL);
4111 }
4112
4113 if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit)
4114 return (EINVAL);
4115 if (memlimit == 0 || memlimit > zfs_lua_max_memlimit)
4116 return (EINVAL);
4117
4118 return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit,
4119 nvarg, outnvl));
4120 }
4121
4122 /*
4123 * inputs:
4124 * zc_name name of dataset to destroy
4125 * zc_objset_type type of objset
4126 * zc_defer_destroy mark for deferred destroy
4127 * zc_guid if set, do atomical recursive destroy
4128 *
4129 * outputs: none
4130 */
4131 static int
4132 zfs_ioc_destroy(zfs_cmd_t *zc)
4133 {
4134 int err;
4135 nvlist_t *event;
4136
4137 if (zfs_is_wormed(zc->zc_name))
4138 return (SET_ERROR(EPERM));
4139
4140 if (zc->zc_objset_type == DMU_OST_ZFS)
4141 zfs_unmount_snap(zc->zc_name);
4142
4143 if (zc->zc_guid) {
4144 spa_t *spa;
4145
4146 if ((err = spa_open(zc->zc_name, &spa, FTAG)) != 0)
4147 return (err);
4148
4149 err = autosnap_lock(spa, RW_WRITER);
4150 if (err == 0) {
4151 err = wbc_walk_lock(spa);
4152 if (err != 0)
4153 autosnap_unlock(spa);
4154 }
4155
4156 if (err == 0) {
4157 err = dsl_destroy_atomically(zc->zc_name,
4158 zc->zc_defer_destroy);
4159 wbc_walk_unlock(spa);
4160 autosnap_unlock(spa);
4161 }
4162
4163 spa_close(spa, FTAG);
4164 } else {
4165 if (strchr(zc->zc_name, '@')) {
4166 spa_t *spa = NULL;
4167
4168 err = spa_open(zc->zc_name, &spa, FTAG);
4169 if (err != 0)
4170 return (err);
4171
4172 err = zfs_destroy_check_autosnap(spa, zc->zc_name);
4173 if (err == 0) {
4174 err = dsl_destroy_snapshot(zc->zc_name,
4175 zc->zc_defer_destroy);
4176 }
4177
4178 spa_close(spa, FTAG);
4179 } else {
4180 err = dsl_destroy_head(zc->zc_name);
4181 if (err == EEXIST) {
4182 /*
4183 * It is possible that the given DS may have
4184 * hidden child (%recv) datasets - "leftovers"
4185 * resulting from the previously interrupted
4186 * 'zfs receive'.
4187 */
4188 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4189
4190 if (snprintf(namebuf, sizeof (namebuf),
4191 "%s/%%recv", zc->zc_name) >=
4192 sizeof (namebuf))
4193 return (err);
4194
4195 /* Try to remove the hidden child (%recv) */
4196 err = dsl_destroy_head(namebuf);
4197 if (err == 0) {
4198 /*
4199 * Now the given DS should not have
4200 * children, so we can try to remove
4201 * it again
4202 */
4203 err = dsl_destroy_head(zc->zc_name);
4204 } else if (err == ENOENT) {
4205 /*
4206 * The hidden child (%recv) does not
4207 * exist, so need to restore original
4208 * error
4209 */
4210 err = EEXIST;
4211 }
4212
4213 }
4214 }
4215 }
4216 if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0)
4217 (void) zvol_remove_minor(zc->zc_name);
4218
4219 if (err == 0) {
4220 event = fnvlist_alloc();
4221 fnvlist_add_string(event, "fsname", zc->zc_name);
4222 fnvlist_add_int32(event, "type", zc->zc_objset_type);
4223 zfs_event_post(ZFS_EC_STATUS, "destroy", event);
4224 }
4225
4226 return (err);
4227 }
4228
4229 /*
4230 * fsname is name of dataset to rollback (to most recent snapshot)
4231 *
4232 * innvl may contain name of expected target snapshot
4233 *
4234 * outnvl: "target" -> name of most recent snapshot
4235 * }
4236 */
4237 /* ARGSUSED */
4238 static int
4239 zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
4240 {
4241 zfsvfs_t *zfsvfs;
4242 char *target = NULL;
4243 int error;
4244 nvlist_t *event;
4245 int resume_err = 0;
4246
4247 if (zfs_is_wormed(fsname))
4248 return (SET_ERROR(EPERM));
4249
4250 (void) nvlist_lookup_string(innvl, "target", &target);
4251 if (target != NULL) {
4252 const char *cp = strchr(target, '@');
4253
4254 /*
4255 * The snap name must contain an @, and the part after it must
4256 * contain only valid characters.
4257 */
4258 if (cp == NULL ||
4259 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
4260 return (SET_ERROR(EINVAL));
4261 }
4262
4263 if (getzfsvfs(fsname, &zfsvfs) == 0) {
4264 dsl_dataset_t *ds;
4265
4266 ds = dmu_objset_ds(zfsvfs->z_os);
4267 error = zfs_suspend_fs(zfsvfs);
4268 if (error == 0) {
4269 error = dsl_dataset_rollback(fsname, target, zfsvfs,
4270 outnvl);
4271 resume_err = zfs_resume_fs(zfsvfs, ds);
4272 }
4273 VFS_RELE(zfsvfs->z_vfs);
4274 } else {
4275 error = dsl_dataset_rollback(fsname, target, NULL, outnvl);
4276 }
4277
4278 if (error == 0) {
4279 event = fnvlist_alloc();
4280 fnvlist_add_string(event, "target", (target != NULL) ? target : "");
4281 fnvlist_add_string(event, "fsname", fsname);
4282 fnvlist_add_int32(event, "resume_err", resume_err);
4283 zfs_event_post(ZFS_EC_STATUS, "rollback", event);
4284 }
4285
4286 error = (error != 0) ? error : resume_err;
4287 return (error);
4288 }
4289
4290 static int
4291 recursive_unmount(const char *fsname, void *arg)
4292 {
4293 const char *snapname = arg;
4294 char fullname[ZFS_MAX_DATASET_NAME_LEN];
4295
4296 (void) snprintf(fullname, sizeof (fullname), "%s@%s", fsname, snapname);
4297 zfs_unmount_snap(fullname);
4298
4299 return (0);
4300 }
4301
4302 /*
4303 * inputs:
4304 * zc_name old name of dataset
4305 * zc_value new name of dataset
4306 * zc_cookie recursive flag (only valid for snapshots)
4307 *
4308 * outputs: none
4309 */
4310 static int
4311 zfs_ioc_rename(zfs_cmd_t *zc)
4312 {
4313 boolean_t recursive = zc->zc_cookie & 1;
4314 char *at;
4315 nvlist_t *event;
4316 int error;
4317
4318 if (zfs_is_wormed(zc->zc_name))
4319 return (SET_ERROR(EPERM));
4320
4321 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
4322 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
4323 strchr(zc->zc_value, '%'))
4324 return (SET_ERROR(EINVAL));
4325
4326 at = strchr(zc->zc_name, '@');
4327 if (at != NULL) {
4328 /* snaps must be in same fs */
4329
4330 if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1))
4331 return (SET_ERROR(EXDEV));
4332 *at = '\0';
4333 if (zc->zc_objset_type == DMU_OST_ZFS) {
4334 error = dmu_objset_find(zc->zc_name,
4335 recursive_unmount, at + 1,
4336 recursive ? DS_FIND_CHILDREN : 0);
4337 if (error != 0) {
4338 *at = '@';
4339 return (error);
4340 }
4341 }
4342 error = dsl_dataset_rename_snapshot(zc->zc_name,
4343 at + 1, strchr(zc->zc_value, '@') + 1, recursive);
4344 *at = '@';
4345
4346 } else {
4347 if (zc->zc_objset_type == DMU_OST_ZVOL)
4348 (void) zvol_remove_minor(zc->zc_name);
4349 error = dsl_dir_rename(zc->zc_name, zc->zc_value);
4350 }
4351
4352 if (error == 0) {
4353 event = fnvlist_alloc();
4354 fnvlist_add_string(event, "origin", zc->zc_name);
4355 fnvlist_add_string(event, "fsname", zc->zc_value);
4356 fnvlist_add_int32(event, "type", zc->zc_objset_type);
4357 zfs_event_post(ZFS_EC_STATUS, "rename", event);
4358 }
4359
4360 return (error);
4361 }
4362
4363 static int
4364 zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
4365 {
4366 const char *propname = nvpair_name(pair);
4367 boolean_t issnap = (strchr(dsname, '@') != NULL);
4368 zfs_prop_t prop = zfs_name_to_prop(propname);
4369 uint64_t intval;
4370 int err;
4371
4372 if (prop == ZPROP_INVAL) {
4373 if (zfs_prop_user(propname)) {
4374 if (err = zfs_secpolicy_write_perms(dsname,
4375 ZFS_DELEG_PERM_USERPROP, cr))
4376 return (err);
4377 return (0);
4378 }
4379
4380 if (!issnap && zfs_prop_userquota(propname)) {
4497 }
4498 spa_close(spa, FTAG);
4499 }
4500 break;
4501
4502 case ZFS_PROP_SHARESMB:
4503 if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
4504 return (SET_ERROR(ENOTSUP));
4505 break;
4506
4507 case ZFS_PROP_ACLINHERIT:
4508 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
4509 nvpair_value_uint64(pair, &intval) == 0) {
4510 if (intval == ZFS_ACL_PASSTHROUGH_X &&
4511 zfs_earlier_version(dsname,
4512 SPA_VERSION_PASSTHROUGH_X))
4513 return (SET_ERROR(ENOTSUP));
4514 }
4515 break;
4516
4517 case ZFS_PROP_WBC_MODE:
4518 {
4519 spa_t *spa;
4520 boolean_t wbc_feature_enabled;
4521
4522 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4523 return (err);
4524
4525 wbc_feature_enabled =
4526 spa_feature_is_enabled(spa, SPA_FEATURE_WBC);
4527 spa_close(spa, FTAG);
4528
4529 /* WBC cannot be used without special-vdev */
4530 if (!wbc_feature_enabled || !spa_has_special(spa))
4531 return (SET_ERROR(EKZFS_WBCNOTSUP));
4532
4533 /*
4534 * We do not want to have races, because on
4535 * import or after reboot WBC does registration
4536 * asynchronously.
4537 */
4538 if (!spa->spa_wbc.wbc_ready_to_use)
4539 return (SET_ERROR(EBUSY));
4540 }
4541 break;
4542
4543 case ZFS_PROP_CHECKSUM:
4544 case ZFS_PROP_DEDUP:
4545 {
4546 spa_feature_t feature;
4547 spa_t *spa;
4548
4549 /* dedup feature version checks */
4550 if (prop == ZFS_PROP_DEDUP &&
4551 zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
4552 return (SET_ERROR(ENOTSUP));
4553
4554 if (nvpair_value_uint64(pair, &intval) != 0)
4555 return (SET_ERROR(EINVAL));
4556
4557 /* check prop value is enabled in features */
4558 feature = zio_checksum_to_feature(intval & ZIO_CHECKSUM_MASK);
4559 if (feature == SPA_FEATURE_NONE)
4560 break;
4561
4562 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4798 }
4799 if (delayable[i] != 0) {
4800 tmp = nvlist_prev_nvpair(props, nvp);
4801 VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0);
4802 VERIFY(nvlist_remove_nvpair(props, nvp) == 0);
4803 nvp = tmp;
4804 }
4805 }
4806
4807 if (nvlist_empty(delayprops)) {
4808 nvlist_free(delayprops);
4809 delayprops = NULL;
4810 }
4811 return (delayprops);
4812 }
4813
4814 #ifdef DEBUG
4815 static boolean_t zfs_ioc_recv_inject_err;
4816 #endif
4817
4818 int
4819 dmu_recv_impl(int fd, char *tofs, char *tosnap, char *origin,
4820 dmu_replay_record_t *drr_begin, boolean_t is_resumable, nvlist_t *props,
4821 nvlist_t *errors, uint64_t *errf, int cfd, uint64_t *ahdl, uint64_t *sz,
4822 boolean_t force, dmu_krrp_task_t *krrp_task)
4823 {
4824 file_t *fp = getf(fd);
4825 dmu_recv_cookie_t drc;
4826 int error = 0;
4827 int props_error = 0;
4828 offset_t off;
4829 nvlist_t *origprops = NULL; /* existing properties */
4830 nvlist_t *delayprops = NULL; /* sent properties applied post-receive */
4831 boolean_t first_recvd_props = B_FALSE;
4832 nvlist_t *event;
4833 boolean_t force_cksum =
4834 !krrp_task || krrp_task->buffer_args.force_cksum;
4835
4836 ASSERT(fp || krrp_task);
4837
4838 error = dmu_recv_begin(tofs, tosnap,
4839 drr_begin, force, is_resumable, force_cksum, origin, &drc);
4840
4841 if (error != 0)
4842 goto out;
4843
4844 drc.drc_krrp_task = krrp_task;
4845 /*
4846 * Set properties before we receive the stream so that they are applied
4847 * to the new data. Note that we must call dmu_recv_stream() if
4848 * dmu_recv_begin() succeeds.
4849 */
4850 if (props != NULL && !drc.drc_newfs) {
4851 if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >=
4852 SPA_VERSION_RECVD_PROPS &&
4853 !dsl_prop_get_hasrecvd(tofs))
4854 first_recvd_props = B_TRUE;
4855
4856 /*
4857 * If new received properties are supplied, they are to
4858 * completely replace the existing received properties, so stash
4859 * away the existing ones.
4860 */
4861 if (dsl_prop_get_received(tofs, &origprops) == 0) {
4862 nvlist_t *errlist = NULL;
4863 /*
4864 * Don't bother writing a property if its value won't
4865 * change (and avoid the unnecessary security checks).
4866 *
4867 * The first receive after SPA_VERSION_RECVD_PROPS is a
4868 * special case where we blow away all local properties
4869 * regardless.
4870 */
4871 if (!first_recvd_props)
4872 props_reduce(props, origprops);
4873 if (zfs_check_clearable(tofs, origprops, &errlist) != 0)
4874 (void) nvlist_merge(errors, errlist, 0);
4875 nvlist_free(errlist);
4876
4877 if (clear_received_props(tofs, origprops,
4878 first_recvd_props ? NULL : props) != 0)
4879 *errf |= ZPROP_ERR_NOCLEAR;
4880 } else {
4881 *errf |= ZPROP_ERR_NOCLEAR;
4882 }
4883 }
4884
4885 if (props != NULL) {
4886 props_error = dsl_prop_set_hasrecvd(tofs);
4887
4888 if (props_error == 0) {
4889 delayprops = extract_delay_props(props);
4890 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4891 props, errors);
4892 }
4893 }
4894
4895 if (fp) {
4896 off = fp->f_offset;
4897 } else {
4898 off = 0;
4899 }
4900 error = dmu_recv_stream(&drc, fp ? fp->f_vnode : NULL,
4901 &off, cfd, ahdl, krrp_task);
4902
4903 if (error == 0) {
4904 zfsvfs_t *zfsvfs = NULL;
4905
4906 error = getzfsvfs(tofs, &zfsvfs);
4907 if (error == 0) {
4908 /* online recv */
4909 dsl_dataset_t *ds;
4910 int end_err;
4911
4912 ds = dmu_objset_ds(zfsvfs->z_os);
4913 error = zfs_suspend_fs(zfsvfs);
4914 /*
4915 * If the suspend fails, then the recv_end will
4916 * likely also fail, and clean up after itself.
4917 */
4918 end_err = dmu_recv_end(&drc, zfsvfs);
4919 if (error == 0)
4920 error = zfs_resume_fs(zfsvfs, ds);
4921 error = error ? error : end_err;
4922 VFS_RELE(zfsvfs->z_vfs);
4923 } else {
4924 error = dmu_recv_end(&drc, NULL);
4925 }
4926
4927 /* Set delayed properties now, after we're done receiving. */
4928 if (delayprops != NULL && error == 0) {
4929 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4930 delayprops, errors);
4931 }
4932 }
4933
4934 if (delayprops != NULL) {
4935 /*
4936 * Merge delayed props back in with initial props, in case
4937 * we're DEBUG and zfs_ioc_recv_inject_err is set (which means
4938 * we have to make sure clear_received_props() includes
4939 * the delayed properties).
4940 *
4941 * Since zfs_ioc_recv_inject_err is only in DEBUG kernels,
4942 * using ASSERT() will be just like a VERIFY.
4943 */
4944 ASSERT(nvlist_merge(props, delayprops, 0) == 0);
4945 nvlist_free(delayprops);
4946 }
4947
4948 if (fp) {
4949 *sz = off - fp->f_offset;
4950 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4951 fp->f_offset = off;
4952 } else {
4953 *sz = off;
4954 }
4955 if (error == 0) {
4956 char val[MAXNAMELEN];
4957
4958 (void) strcpy(val, tofs);
4959 (void) strcat(val, "@");
4960 (void) strcat(val, tosnap);
4961
4962 event = fnvlist_alloc();
4963 if (props != NULL)
4964 fnvlist_add_nvlist(event, "props", props);
4965 fnvlist_add_string(event, "origin", tofs);
4966 fnvlist_add_string(event, "tosnap", val);
4967 fnvlist_add_uint64(event, "bytes", *sz);
4968 fnvlist_add_boolean_value(event, "newds", drc.drc_newfs);
4969 zfs_event_post(ZFS_EC_STATUS, "recv", event);
4970 }
4971
4972 #ifdef DEBUG
4973 if (zfs_ioc_recv_inject_err) {
4974 zfs_ioc_recv_inject_err = B_FALSE;
4975 error = 1;
4976 }
4977 #endif
4978 /*
4979 * On error, restore the original props.
4980 */
4981 if (error != 0 && props != NULL && !drc.drc_newfs) {
4982 if (clear_received_props(tofs, props, NULL) != 0) {
4983 /*
4984 * We failed to clear the received properties.
4985 * Since we may have left a $recvd value on the
4986 * system, we can't clear the $hasrecvd flag.
4987 */
4988 *errf |= ZPROP_ERR_NORESTORE;
4989 } else if (first_recvd_props) {
4990 dsl_prop_unset_hasrecvd(tofs);
4991 }
4992
4993 if (origprops == NULL && !drc.drc_newfs) {
4994 /* We failed to stash the original properties. */
4995 *errf |= ZPROP_ERR_NORESTORE;
4996 }
4997
4998 /*
4999 * dsl_props_set() will not convert RECEIVED to LOCAL on or
5000 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
5001 * explictly if we're restoring local properties cleared in the
5002 * first new-style receive.
5003 */
5004 if (origprops != NULL &&
5005 zfs_set_prop_nvlist(tofs, (first_recvd_props ?
5006 ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
5007 origprops, NULL) != 0) {
5008 /*
5009 * We stashed the original properties but failed to
5010 * restore them.
5011 */
5012 *errf |= ZPROP_ERR_NORESTORE;
5013 }
5014 }
5015 out:
5016 nvlist_free(origprops);
5017 if (fp)
5018 releasef(fd);
5019
5020 if (error == 0)
5021 error = props_error;
5022
5023 return (error);
5024 }
5025
5026 /*
5027 * inputs:
5028 * zc_name name of containing filesystem
5029 * zc_nvlist_src{_size} nvlist of properties to apply
5030 * zc_value name of snapshot to create
5031 * zc_string name of clone origin (if DRR_FLAG_CLONE)
5032 * zc_cookie file descriptor to recv from
5033 * zc_begin_record the BEGIN record of the stream (not byteswapped)
5034 * zc_guid force flag
5035 * zc_cleanup_fd cleanup-on-exit file descriptor
5036 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
5037 * zc_resumable if data is incomplete assume sender will resume
5038 *
5039 * outputs:
5040 * zc_cookie number of bytes read
5041 * zc_nvlist_dst{_size} error for each unapplied received property
5042 * zc_obj zprop_errflags_t
5043 * zc_action_handle handle for this guid/ds mapping
5044 */
5045 static int
5046 zfs_ioc_recv(zfs_cmd_t *zc)
5047 {
5048 int fd = zc->zc_cookie;
5049 char tofs[ZFS_MAX_DATASET_NAME_LEN];
5050 char *tosnap;
5051 char *origin = NULL;
5052 nvlist_t *errors;
5053 nvlist_t *props = NULL; /* sent properties */
5054 boolean_t force = (boolean_t)zc->zc_guid;
5055 int err;
5056
5057 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
5058 strchr(zc->zc_value, '@') == NULL ||
5059 strchr(zc->zc_value, '%'))
5060 return (SET_ERROR(EINVAL));
5061
5062 (void) strcpy(tofs, zc->zc_value);
5063 tosnap = strchr(tofs, '@');
5064 *tosnap++ = '\0';
5065
5066 if (zc->zc_string[0])
5067 origin = zc->zc_string;
5068
5069 if (zc->zc_nvlist_src != NULL &&
5070 (err = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
5071 zc->zc_iflags, &props)) != 0)
5072 return (err);
5073
5074 errors = fnvlist_alloc();
5075
5076 err = dmu_recv_impl(fd, tofs, tosnap, origin,
5077 &zc->zc_begin_record, zc->zc_resumable, props, errors, &zc->zc_obj,
5078 zc->zc_cleanup_fd, &zc->zc_action_handle, &zc->zc_cookie,
5079 force, NULL);
5080
5081 /*
5082 * Now that all props, initial and delayed, are set, report the prop
5083 * errors to the caller.
5084 */
5085 if (zc->zc_nvlist_dst_size != 0 &&
5086 (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 ||
5087 put_nvlist(zc, errors) != 0)) {
5088 /*
5089 * Caller made zc->zc_nvlist_dst less than the minimum expected
5090 * size or supplied an invalid address.
5091 */
5092 err = SET_ERROR(EINVAL);
5093 }
5094
5095 nvlist_free(errors);
5096 nvlist_free(props);
5097 return (err);
5098
5099 }
5100
5101 /*
5102 * inputs:
5103 * zc_name name of snapshot to send
5104 * zc_cookie file descriptor to send stream to
5105 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
5106 * zc_sendobj objsetid of snapshot to send
5107 * zc_fromobj objsetid of incremental fromsnap (may be zero)
5108 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
5109 * output size in zc_objset_type.
5110 * zc_flags lzc_send_flags
5111 *
5112 * outputs:
5113 * zc_objset_type estimated size, if zc_guid is set
5114 */
5115 static int
5116 zfs_ioc_send(zfs_cmd_t *zc)
5117 {
5118 int error;
5119 offset_t off;
5120 boolean_t estimate = (zc->zc_guid != 0);
5121 boolean_t embedok = (zc->zc_flags & 0x1);
5122 boolean_t large_block_ok = (zc->zc_flags & 0x2);
5159 }
5160
5161 if (zc->zc_fromobj != 0) {
5162 error = dsl_dataset_hold_obj(dp, zc->zc_fromobj,
5163 FTAG, &fromsnap);
5164 if (error != 0) {
5165 dsl_dataset_rele(tosnap, FTAG);
5166 dsl_pool_rele(dp, FTAG);
5167 return (error);
5168 }
5169 }
5170
5171 error = dmu_send_estimate(tosnap, fromsnap, compressok,
5172 &zc->zc_objset_type);
5173
5174 if (fromsnap != NULL)
5175 dsl_dataset_rele(fromsnap, FTAG);
5176 dsl_dataset_rele(tosnap, FTAG);
5177 dsl_pool_rele(dp, FTAG);
5178 } else {
5179 offset_t off_starting;
5180 file_t *fp = getf(zc->zc_cookie);
5181 if (fp == NULL)
5182 return (SET_ERROR(EBADF));
5183
5184 off_starting = off = fp->f_offset;
5185 error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
5186 zc->zc_fromobj, embedok, large_block_ok, compressok,
5187 zc->zc_cookie, fp->f_vnode, &off, zc->zc_sendsize);
5188
5189 zc->zc_sendcounter = off - off_starting;
5190 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
5191 fp->f_offset = off;
5192 releasef(zc->zc_cookie);
5193 }
5194 return (error);
5195 }
5196
5197 /*
5198 * inputs:
5199 * zc_name name of snapshot on which to report progress
5200 * zc_cookie file descriptor of send stream
5201 *
5202 * outputs:
5203 * zc_cookie number of bytes written in send stream thus far
5204 */
5205 static int
5206 zfs_ioc_send_progress(zfs_cmd_t *zc)
5207 {
5208 dsl_pool_t *dp;
5209 dsl_dataset_t *ds;
5404
5405 (void) spa_vdev_state_exit(spa, NULL, 0);
5406 spa_close(spa, FTAG);
5407 return (0);
5408 }
5409 /*
5410 * inputs:
5411 * zc_name name of filesystem
5412 *
5413 * outputs:
5414 * zc_string name of conflicting snapshot, if there is one
5415 */
5416 static int
5417 zfs_ioc_promote(zfs_cmd_t *zc)
5418 {
5419 dsl_pool_t *dp;
5420 dsl_dataset_t *ds, *ods;
5421 char origin[ZFS_MAX_DATASET_NAME_LEN];
5422 char *cp;
5423 int error;
5424 nvlist_t *event;
5425
5426 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
5427 if (error != 0)
5428 return (error);
5429
5430 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
5431 if (error != 0) {
5432 dsl_pool_rele(dp, FTAG);
5433 return (error);
5434 }
5435
5436 if (!dsl_dir_is_clone(ds->ds_dir)) {
5437 dsl_dataset_rele(ds, FTAG);
5438 dsl_pool_rele(dp, FTAG);
5439 return (SET_ERROR(EINVAL));
5440 }
5441
5442 error = dsl_dataset_hold_obj(dp,
5443 dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods);
5444 if (error != 0) {
5445 dsl_dataset_rele(ds, FTAG);
5446 dsl_pool_rele(dp, FTAG);
5447 return (error);
5448 }
5449
5450 dsl_dataset_name(ods, origin);
5451 dsl_dataset_rele(ods, FTAG);
5452 dsl_dataset_rele(ds, FTAG);
5453 dsl_pool_rele(dp, FTAG);
5454
5455 /*
5456 * We don't need to unmount *all* the origin fs's snapshots, but
5457 * it's easier.
5458 */
5459 cp = strchr(origin, '@');
5460 if (cp)
5461 *cp = '\0';
5462 (void) dmu_objset_find(origin,
5463 zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS);
5464 error = dsl_dataset_promote(zc->zc_name, zc->zc_string);
5465
5466 if (error == 0) {
5467 event = fnvlist_alloc();
5468 fnvlist_add_string(event, "fsname", zc->zc_name);
5469 fnvlist_add_string(event, "origin", zc->zc_value);
5470 zfs_event_post(ZFS_EC_STATUS, "promote", event);
5471 }
5472
5473 return (error);
5474 }
5475
5476 /*
5477 * Retrieve a single {user|group}{used|quota}@... property.
5478 *
5479 * inputs:
5480 * zc_name name of filesystem
5481 * zc_objset_type zfs_userquota_prop_t
5482 * zc_value domain name (eg. "S-1-234-567-89")
5483 * zc_guid RID/UID/GID
5484 *
5485 * outputs:
5486 * zc_cookie property value
5487 */
5488 static int
5489 zfs_ioc_userspace_one(zfs_cmd_t *zc)
5490 {
5491 zfsvfs_t *zfsvfs;
5492 int error;
5493
6134 if (error == 0 && !old->ds_is_snapshot) {
6135 dsl_dataset_rele(old, FTAG);
6136 error = SET_ERROR(EINVAL);
6137 }
6138 if (error != 0) {
6139 dsl_dataset_rele(new, FTAG);
6140 dsl_pool_rele(dp, FTAG);
6141 return (error);
6142 }
6143
6144 error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp);
6145 dsl_dataset_rele(old, FTAG);
6146 dsl_dataset_rele(new, FTAG);
6147 dsl_pool_rele(dp, FTAG);
6148 fnvlist_add_uint64(outnvl, "used", used);
6149 fnvlist_add_uint64(outnvl, "compressed", comp);
6150 fnvlist_add_uint64(outnvl, "uncompressed", uncomp);
6151 return (error);
6152 }
6153
6154 static int
6155 zfs_ioc_vdev_set_props(zfs_cmd_t *zc)
6156 {
6157 nvlist_t *props;
6158 spa_t *spa;
6159 int error;
6160 uint64_t vdev_guid = zc->zc_guid;
6161
6162 if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
6163 zc->zc_iflags, &props))
6164 return (error);
6165
6166 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
6167 nvlist_free(props);
6168 return (error);
6169 }
6170
6171 error = spa_vdev_prop_set(spa, vdev_guid, props);
6172
6173 nvlist_free(props);
6174 spa_close(spa, FTAG);
6175
6176 return (error);
6177 }
6178
6179 static int
6180 zfs_ioc_vdev_get_props(zfs_cmd_t *zc)
6181 {
6182 spa_t *spa;
6183 uint64_t vdev_guid = zc->zc_guid;
6184 nvlist_t *nvp = NULL;
6185 int error;
6186
6187 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
6188 /*
6189 * If the pool is faulted, there may be properties we can still
6190 * get (such as altroot and cachefile), so attempt to get them
6191 * anyway.
6192 */
6193 mutex_enter(&spa_namespace_lock);
6194 if ((spa = spa_lookup(zc->zc_name)) != NULL)
6195 error = spa_vdev_prop_get(spa, vdev_guid, &nvp);
6196 mutex_exit(&spa_namespace_lock);
6197 } else {
6198 error = spa_vdev_prop_get(spa, vdev_guid, &nvp);
6199 spa_close(spa, FTAG);
6200 }
6201
6202 if (error == 0 && zc->zc_nvlist_dst != NULL)
6203 error = put_nvlist(zc, nvp);
6204 else
6205 error = EFAULT;
6206
6207 nvlist_free(nvp);
6208 return (error);
6209 }
6210
6211 static int
6212 zfs_ioc_cos_alloc(zfs_cmd_t *zc)
6213 {
6214 nvlist_t *props;
6215 spa_t *spa;
6216 int error;
6217
6218 if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
6219 zc->zc_iflags, &props))
6220 return (error);
6221
6222 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
6223 nvlist_free(props);
6224 return (error);
6225 }
6226
6227 error = spa_alloc_cos(spa, zc->zc_string, 0);
6228 if (!error)
6229 error = spa_cos_prop_set(spa, zc->zc_string, props);
6230
6231 spa_close(spa, FTAG);
6232 nvlist_free(props);
6233
6234 return (error);
6235 }
6236
6237 static int
6238 zfs_ioc_cos_free(zfs_cmd_t *zc)
6239 {
6240 spa_t *spa;
6241 int error = 0;
6242
6243 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
6244 return (error);
6245
6246 error = spa_free_cos(spa, zc->zc_string, zc->zc_cookie);
6247
6248 spa_close(spa, FTAG);
6249
6250 return (error);
6251 }
6252
6253 static int
6254 zfs_ioc_cos_list(zfs_cmd_t *zc)
6255 {
6256 spa_t *spa;
6257 nvlist_t *nvl;
6258 int error = 0;
6259
6260 VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP) == 0);
6261
6262 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
6263 nvlist_free(nvl);
6264 return (error);
6265 }
6266
6267 error = spa_list_cos(spa, nvl);
6268
6269 if (error == 0 && zc->zc_nvlist_dst != NULL)
6270 error = put_nvlist(zc, nvl);
6271
6272 spa_close(spa, FTAG);
6273 nvlist_free(nvl);
6274
6275 return (error);
6276 }
6277
6278 static int
6279 zfs_ioc_cos_set_props(zfs_cmd_t *zc)
6280 {
6281 nvlist_t *props;
6282 spa_t *spa;
6283 cos_t *cos;
6284 const char *cosname = NULL;
6285 int error = 0;
6286
6287 if ((zc->zc_string == NULL || zc->zc_string[0] == '\0') &&
6288 zc->zc_guid == 0)
6289 return (SET_ERROR(EINVAL));
6290
6291 if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
6292 zc->zc_iflags, &props))
6293 return (error);
6294
6295 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
6296 nvlist_free(props);
6297 return (error);
6298 }
6299
6300 if (zc->zc_guid == 0) {
6301 cosname = zc->zc_string;
6302 } else {
6303 spa_cos_enter(spa);
6304 cos = spa_lookup_cos_by_guid(spa, zc->zc_guid);
6305 if (cos != NULL)
6306 cosname = cos->cos_name;
6307 else
6308 error = SET_ERROR(ENOENT);
6309 spa_cos_exit(spa);
6310 }
6311
6312 if (error == 0)
6313 error = spa_cos_prop_set(spa, cosname, props);
6314
6315 spa_close(spa, FTAG);
6316 nvlist_free(props);
6317
6318 return (error);
6319 }
6320
6321 static int
6322 zfs_ioc_cos_get_props(zfs_cmd_t *zc)
6323 {
6324 spa_t *spa;
6325 cos_t *cos;
6326 nvlist_t *nvp = NULL;
6327 const char *cosname = NULL;
6328 int error = 0;
6329
6330 if ((zc->zc_string == NULL || zc->zc_string[0] == '\0') &&
6331 zc->zc_guid == 0)
6332 return (SET_ERROR(EINVAL));
6333
6334 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
6335 return (error);
6336
6337 if (zc->zc_guid == 0) {
6338 cosname = zc->zc_string;
6339 } else {
6340 spa_cos_enter(spa);
6341 cos = spa_lookup_cos_by_guid(spa, zc->zc_guid);
6342 if (cos != NULL)
6343 cosname = cos->cos_name;
6344 spa_cos_exit(spa);
6345 }
6346
6347 if (error == 0)
6348 error = spa_cos_prop_get(spa, cosname, &nvp);
6349
6350 spa_close(spa, FTAG);
6351
6352 if (error == 0 && zc->zc_nvlist_dst != NULL)
6353 error = put_nvlist(zc, nvp);
6354 else
6355 error = EFAULT;
6356
6357 nvlist_free(nvp);
6358 return (error);
6359 }
6360
6361 /*
6362 * innvl: {
6363 * "fd" -> file descriptor to write stream to (int32)
6364 * (optional) "fromsnap" -> full snap name to send an incremental from
6365 * (optional) "largeblockok" -> (value ignored)
6366 * indicates that blocks > 128KB are permitted
6367 * (optional) "embedok" -> (value ignored)
6368 * presence indicates DRR_WRITE_EMBEDDED records are permitted
6369 * (optional) "compressok" -> (value ignored)
6370 * presence indicates compressed DRR_WRITE records are permitted
6371 * (optional) "resume_object" and "resume_offset" -> (uint64)
6372 * if present, resume send stream from specified object and offset.
6373 * }
6374 *
6375 * outnvl is unused
6376 */
6377 /* ARGSUSED */
6378 static int
6379 zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
6380 {
6491 * bookmark
6492 */
6493 error = SET_ERROR(EINVAL);
6494 goto out;
6495 }
6496 } else {
6497 /*
6498 * If estimating the size of a full send, use dmu_send_estimate.
6499 */
6500 error = dmu_send_estimate(tosnap, NULL, compressok, &space);
6501 }
6502
6503 fnvlist_add_uint64(outnvl, "space", space);
6504
6505 out:
6506 dsl_dataset_rele(tosnap, FTAG);
6507 dsl_pool_rele(dp, FTAG);
6508 return (error);
6509 }
6510
6511 typedef struct dp_cursor_cb_arg {
6512 nvlist_t *outnvl;
6513 uint64_t offset;
6514 uint32_t count;
6515 uint32_t skip;
6516 boolean_t verbose;
6517 boolean_t snaps;
6518 } dp_cursor_cb_arg_t;
6519
6520 /* ARGSUSED */
6521 int
6522 ds_cursor_cb(dsl_pool_t *dp, dsl_dataset_t *ds, void *arg)
6523 {
6524 int error;
6525 char dsname[MAXNAMELEN];
6526 objset_t *osp;
6527
6528 dp_cursor_cb_arg_t *cb = (dp_cursor_cb_arg_t *)arg;
6529
6530 dsl_dataset_name(ds, dsname);
6531 nvlist_t *nv = fnvlist_alloc();
6532
6533 fnvlist_add_uint64(nv, zfs_prop_to_name(ZFS_PROP_GUID),
6534 dsl_dataset_phys(ds)->ds_guid);
6535
6536 if (cb->verbose) {
6537 uint64_t refd, avail, uobjs, aobjs;
6538 dsl_dataset_space(ds, &refd, &avail, &uobjs, &aobjs);
6539
6540 fnvlist_add_uint64(nv, zfs_prop_to_name(ZFS_PROP_AVAILABLE),
6541 avail);
6542 fnvlist_add_uint64(nv, zfs_prop_to_name(ZFS_PROP_REFERENCED),
6543 refd);
6544 fnvlist_add_uint64(nv, zfs_prop_to_name(ZFS_PROP_USED),
6545 dsl_dir_phys(ds->ds_dir)->dd_used_bytes);
6546 }
6547
6548 error = dmu_objset_from_ds(ds, &osp);
6549
6550 if (error == 0)
6551 fnvlist_add_uint64(nv, zfs_prop_to_name(ZFS_PROP_TYPE),
6552 dmu_objset_type(osp));
6553
6554 fnvlist_add_nvlist(cb->outnvl, dsname, nv);
6555 nvlist_free(nv);
6556 return (error);
6557 }
6558
6559 int
6560 dmu_objset_find_dp_cursor(dsl_pool_t *dp, uint64_t ddobj,
6561 int func(dsl_pool_t *, dsl_dataset_t *, void *), void *arg)
6562 {
6563 dsl_dir_t *dd;
6564 dsl_dataset_t *ds;
6565 zap_cursor_t zc;
6566 zap_attribute_t *attr;
6567 uint64_t thisobj;
6568 int error, i;
6569
6570 dp_cursor_cb_arg_t *cb = (dp_cursor_cb_arg_t *)arg;
6571
6572 ASSERT(dsl_pool_config_held(dp));
6573 error = dsl_dir_hold_obj(dp, ddobj, NULL, FTAG, &dd);
6574 thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj;
6575
6576 if (error != 0)
6577 return (error);
6578
6579 attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);
6580
6581 /* we are interrestd in filesytems and volumes */
6582 if (!cb->snaps) {
6583
6584 /* init the cursor at given offset */
6585 zap_cursor_init_serialized(&zc, dp->dp_meta_objset,
6586 dsl_dir_phys(dd)->dd_child_dir_zapobj, cb->offset);
6587
6588
6589 for (i = 0; i < cb->skip; i++) {
6590 zap_cursor_advance(&zc);
6591 if ((zap_cursor_retrieve(&zc, attr) != 0)) {
6592 error = ENOENT;
6593 goto out;
6594 }
6595 }
6596
6597 for (i = 0; i < cb->count; i++) {
6598 zap_cursor_advance(&zc);
6599 if ((zap_cursor_retrieve(&zc, attr) != 0)) {
6600 error = ENOENT;
6601 goto out;
6602 }
6603
6604 ASSERT3U(attr->za_integer_length, ==,
6605 sizeof (uint64_t));
6606 ASSERT3U(attr->za_num_integers, ==, 1);
6607 /* recursivly walk objects skipping $MOS and $ORIGIN */
6608 error = dmu_objset_find_dp(dp, attr->za_first_integer,
6609 func, arg, 0);
6610 if (error != 0)
6611 break;
6612 }
6613 } else {
6614
6615 dsl_dataset_t *ds;
6616
6617 error = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds);
6618
6619 if (error == 0) {
6620
6621 dsl_dataset_rele(ds, FTAG);
6622 zap_cursor_init_serialized(&zc, dp->dp_meta_objset,
6623 dsl_dataset_phys(ds)->ds_snapnames_zapobj,
6624 cb->offset);
6625
6626 for (i = 0; i < cb->skip; i++) {
6627 zap_cursor_advance(&zc);
6628 if ((zap_cursor_retrieve(&zc,
6629 attr) != 0)) {
6630 error = ENOENT;
6631 goto out;
6632 }
6633 }
6634
6635 for (i = 0; i < cb->count; i++) {
6636 zap_cursor_advance(&zc);
6637 if ((zap_cursor_retrieve(&zc, attr) != 0)) {
6638 error = ENOENT;
6639 goto out;
6640
6641 }
6642
6643 ASSERT3U(attr->za_integer_length, ==,
6644 sizeof (uint64_t));
6645 ASSERT3U(attr->za_num_integers, ==, 1);
6646
6647 error = dsl_dataset_hold_obj(dp,
6648 attr->za_first_integer, FTAG, &ds);
6649 if (error != 0)
6650 break;
6651 error = func(dp, ds, arg);
6652 dsl_dataset_rele(ds, FTAG);
6653 if (error != 0)
6654 break;
6655 }
6656 }
6657 }
6658 out:
6659 cb->offset = zap_cursor_serialize(&zc);
6660 zap_cursor_fini(&zc);
6661 dsl_dir_rele(dd, FTAG);
6662 kmem_free(attr, sizeof (zap_attribute_t));
6663
6664 /* return self as the last dataset */
6665 if (error == ENOENT) {
6666 if ((error = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds)) != 0)
6667 return (error);
6668 error = func(dp, ds, arg);
6669 dsl_dataset_rele(ds, FTAG);
6670 if (error)
6671 return (error);
6672 error = ENOENT;
6673 }
6674
6675 return (error);
6676 }
6677
6678
6679 /*
6680 * We want to list all dataset under the given name. Optionally, we advance the
6681 * ZAP cursor "skip" times and retrieve "count" datasets. We return the offset
6682 * so the user can start the next invocation where he left off.
6683 */
6684
6685 static int
6686 zfs_ioc_list_from_cursor(const char *name, nvlist_t *innvl, nvlist_t *outnvl)
6687 {
6688
6689 dsl_pool_t *dp;
6690 dsl_dataset_t *ds;
6691
6692 int error;
6693
6694 dp_cursor_cb_arg_t cb_args;
6695
6696 if ((strchr(name, '@') != NULL))
6697 return (EINVAL);
6698
6699 if ((error = dsl_pool_hold(name, FTAG, &dp)) != 0)
6700 return (error);
6701
6702 if ((error = dsl_dataset_hold(dp, name, FTAG, &ds)) != 0) {
6703 dsl_pool_rele(dp, FTAG);
6704 return (error);
6705 }
6706
6707 (void) nvlist_lookup_uint32(innvl, "count", &cb_args.count);
6708 (void) nvlist_lookup_uint32(innvl, "skip", &cb_args.skip);
6709 (void) nvlist_lookup_uint64(innvl, "offset", &cb_args.offset);
6710 (void) nvlist_lookup_boolean_value(innvl, "verbose", &cb_args.verbose);
6711 (void) nvlist_lookup_boolean_value(innvl, "snaps", &cb_args.snaps);
6712
6713 cb_args.outnvl = outnvl;
6714 error = dmu_objset_find_dp_cursor(dp, ds->ds_dir->dd_object,
6715 &ds_cursor_cb, &cb_args);
6716
6717 fnvlist_add_uint64(outnvl, "offset", cb_args.offset);
6718 dsl_dataset_rele(ds, FTAG);
6719 dsl_pool_rele(dp, FTAG);
6720
6721 return (error);
6722 }
6723
6724
6725 static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
6726
6727 static void
6728 zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6729 zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
6730 boolean_t log_history, zfs_ioc_poolcheck_t pool_check)
6731 {
6732 zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
6733
6734 ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
6735 ASSERT3U(ioc, <, ZFS_IOC_LAST);
6736 ASSERT3P(vec->zvec_legacy_func, ==, NULL);
6737 ASSERT3P(vec->zvec_func, ==, NULL);
6738
6739 vec->zvec_legacy_func = func;
6740 vec->zvec_secpolicy = secpolicy;
6741 vec->zvec_namecheck = namecheck;
6742 vec->zvec_allow_log = log_history;
6743 vec->zvec_pool_check = pool_check;
6744 }
6810 {
6811 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6812 DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED);
6813 }
6814
6815 static void
6816 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
6817 {
6818 zfs_ioctl_register_dataset_read_secpolicy(ioc, func,
6819 zfs_secpolicy_read);
6820 }
6821
6822 static void
6823 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6824 zfs_secpolicy_func_t *secpolicy)
6825 {
6826 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6827 DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
6828 }
6829
6830 /*
6831 * Appearing to take poolname as a parameter is a concession to the ioctl
6832 * handler. Leading underbar for generation idea nvpair exists only on output to
6833 * avoid pool name conflict.
6834 */
6835 /* ARGSUSED */
6836 static int
6837 zfs_ioc_pool_configs_nvl(const char *poolname, nvlist_t *innvl,
6838 nvlist_t *outnvl)
6839 {
6840 nvlist_t *configs;
6841 uint64_t generation;
6842
6843 if (nvlist_lookup_uint64(innvl, "generation", &generation) != 0)
6844 return (SET_ERROR(EINVAL));
6845
6846 if ((configs = spa_all_configs(&generation)) == NULL)
6847 return (SET_ERROR(EEXIST));
6848
6849 fnvlist_merge(outnvl, configs);
6850 nvlist_free(configs);
6851 fnvlist_add_uint64(outnvl, "_generation", generation);
6852
6853 return (0);
6854 }
6855
6856 /*
6857 * Ask spa for pool statistics. If we get a non-NULL config but a non-zero
6858 * return from spa, we return EAGAIN to hint to callers that we've retrieved
6859 * a config for a faulted pool. We take no arguments but declare otherwise to
6860 * suit the ioctl handler's pattern. Similar considerations apply to outnvl as a
6861 * single pointer that has to be merged with config allocated or nulled by spa.
6862 */
6863 static int
6864 zfs_ioc_pool_stats_nvl(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
6865 {
6866 nvlist_t *config;
6867 int error;
6868 int ret = 0;
6869
6870 ASSERT3P(innvl, ==, NULL);
6871 error = spa_get_stats(poolname, &config, NULL, 0);
6872 ASSERT3U(error, !=, EAGAIN);
6873
6874 if (config != NULL) {
6875 fnvlist_merge(outnvl, config);
6876 nvlist_free(config);
6877 if (error)
6878 ret = SET_ERROR(EAGAIN);
6879 } else {
6880 ret = error;
6881 }
6882
6883 return (ret);
6884 }
6885
6886 static nvlist_t *
6887 objset_stats2nv(dmu_objset_stats_t *stat)
6888 {
6889 nvlist_t *statlist = fnvlist_alloc();
6890
6891 fnvlist_add_uint64(statlist, "dds_num_clones", stat->dds_num_clones);
6892 fnvlist_add_uint64(statlist, "dds_creation_txg",
6893 stat->dds_creation_txg);
6894 fnvlist_add_uint64(statlist, "dds_guid", stat->dds_guid);
6895 fnvlist_add_uint8(statlist, "dds_type", (uint8_t)stat->dds_type);
6896 fnvlist_add_uint8(statlist, "dds_is_snapshot", stat->dds_is_snapshot);
6897 fnvlist_add_uint8(statlist, "dds_inconsistent",
6898 stat->dds_inconsistent);
6899 fnvlist_add_string(statlist, "dds_origin", stat->dds_origin);
6900
6901 return (statlist);
6902 }
6903
6904 /* Given an objset, retrieve stats and props by adding them to the output nvl */
6905 static int
6906 objset_render(objset_t *os, nvlist_t *outnvl)
6907 {
6908 int error = 0;
6909 nvlist_t *props = NULL, *statlist = NULL;
6910 dmu_objset_stats_t stats;
6911
6912 dmu_objset_fast_stat(os, &stats);
6913
6914 if ((error = dsl_prop_get_all(os, &props)) == 0) {
6915 dmu_objset_stats(os, props);
6916 /*
6917 * NB: zvol_get_stats() will read the objset contents,
6918 * which we aren't supposed to do with a
6919 * DS_MODE_USER hold, because it could be
6920 * inconsistent. So this is a bit of a workaround...
6921 * XXX reading with out owning
6922 */
6923 if (!stats.dds_inconsistent &&
6924 dmu_objset_type(os) == DMU_OST_ZVOL) {
6925 error = zvol_get_stats(os, props);
6926 if (error == EIO)
6927 goto out;
6928 VERIFY0(error);
6929 }
6930 fnvlist_add_nvlist(outnvl, "props", props);
6931 statlist = objset_stats2nv(&stats);
6932 fnvlist_add_nvlist(outnvl, "stats", statlist);
6933 nvlist_free(statlist);
6934 }
6935
6936 out:
6937 nvlist_free(props);
6938 return (error);
6939 }
6940
6941 /*
6942 * Note: this IOC can be called internally by other IOCs as an existence
6943 * check against race conditions. Given a dataset name, return its stats
6944 * and props. Optionally we can verify type, which simplifies things for
6945 * callers that may not want to parse stats for themselves (and may discard
6946 * the outnvl in handlers).
6947 */
6948 static int
6949 zfs_ioc_objset_stats_nvl(const char *data, nvlist_t *innvl, nvlist_t *outnvl)
6950 {
6951 objset_t *os;
6952 int error;
6953 dmu_objset_type_t checktype = DMU_OST_ANY;
6954 boolean_t gettype = B_FALSE;
6955
6956 if (innvl != NULL) {
6957 if (nvlist_lookup_uint8(innvl, "type", (uint8_t *)&checktype)
6958 == 0)
6959 gettype = B_TRUE;
6960 }
6961 if ((error = dmu_objset_hold(data, FTAG, &os)) == 0) {
6962 error = objset_render(os, outnvl);
6963 dmu_objset_rele(os, FTAG);
6964
6965 if (error == 0) {
6966 nvlist_t *statlist;
6967 dmu_objset_type_t type;
6968 statlist = fnvlist_lookup_nvlist(outnvl, "stats");
6969 type = fnvlist_lookup_uint8_t(statlist, "dds_type");
6970 if (checktype != DMU_OST_ANY && type != checktype) {
6971 error = EEXIST;
6972 fnvlist_remove(outnvl, "stats");
6973 fnvlist_remove(outnvl, "props");
6974 }
6975 if (gettype)
6976 fnvlist_add_uint8(outnvl, "type", type);
6977 }
6978 }
6979
6980 return (error);
6981 }
6982
6983 /*
6984 * Given a dataset name and an innvl containing a DMU cursor offset, find the
6985 * next child dataset, and return its name, stats, and props and an updated
6986 * cursor.
6987 */
6988 static int
6989 zfs_ioc_dataset_list_next_nvl(const char *data, nvlist_t *innvl,
6990 nvlist_t *outnvl)
6991 {
6992 objset_t *os;
6993 int error;
6994 uint64_t off;
6995 char *p, *nextds;
6996 char name[MAXNAMELEN];
6997 size_t len;
6998 size_t orig_len = strlen(data);
6999
7000 if (innvl == NULL ||
7001 nvlist_lookup_uint64(innvl, "offset", &off) != 0)
7002 return (SET_ERROR(EINVAL));
7003
7004 (void) strlcpy(name, data, sizeof (name));
7005 top:
7006 if (error = dmu_objset_hold(name, FTAG, &os)) {
7007 if (error == ENOENT)
7008 error = SET_ERROR(ESRCH);
7009 return (error);
7010 }
7011
7012 p = strrchr(name, '/');
7013 if (p == NULL || p[1] != '\0') {
7014 if ((len = strlcat(name, "/", sizeof (name))) >= MAXNAMELEN) {
7015 dmu_objset_rele(os, FTAG);
7016 return (SET_ERROR(ESRCH));
7017 }
7018 } else {
7019 len = orig_len;
7020 }
7021 p = name + len;
7022
7023 do {
7024 error = dmu_dir_list_next(os, sizeof (name) - len, p, NULL,
7025 &off);
7026 if (error == ENOENT)
7027 error = ESRCH;
7028 } while (error == 0 && dataset_name_hidden(name));
7029 dmu_objset_rele(os, FTAG);
7030
7031 /*
7032 * If it's an internal dataset (ie. with a '$' in its name),
7033 * don't try to get stats for it, otherwise we'll return ENOENT.
7034 */
7035 if (error == 0 && strchr(name, '$') == NULL) {
7036 error = zfs_ioc_objset_stats_nvl(name, NULL, outnvl);
7037 if (error == ENOENT) {
7038 /* We lost a race with destroy, get the next one. */
7039 name[orig_len] = '\0';
7040 goto top;
7041 }
7042 len = strlen(name) + 1;
7043 nextds = kmem_alloc(len, KM_SLEEP);
7044 (void) strlcpy(nextds, name, len);
7045 fnvlist_add_string(outnvl, "nextds", (const char *)nextds);
7046 fnvlist_add_uint64(outnvl, "offset", off);
7047 }
7048
7049 return (error);
7050 }
7051
7052 /*
7053 * Given a dataset name and a DMU cursor offset, find its next snapshot, and
7054 * return its name, props, and stats and an updated cursor offset.
7055 */
7056 static int
7057 zfs_ioc_snapshot_list_next_nvl(const char *data, nvlist_t *innvl,
7058 nvlist_t *outnvl)
7059 {
7060 objset_t *os;
7061 int error;
7062 uint64_t off, obj;
7063 char name[MAXNAMELEN], *nextsnap;
7064 size_t len;
7065
7066 if (innvl == NULL ||
7067 nvlist_lookup_uint64(innvl, "offset", &off) != 0)
7068 return (SET_ERROR(EINVAL));
7069
7070 error = dmu_objset_hold(data, FTAG, &os);
7071 if (error != 0) {
7072 return (error == ENOENT ? ESRCH : error);
7073 }
7074
7075 /*
7076 * A dataset name of maximum length cannot have any snapshots,
7077 * so exit immediately.
7078 */
7079 (void) strlcpy(name, data, sizeof (name));
7080 if ((len = strlcat(name, "@", sizeof (name))) >= MAXNAMELEN) {
7081 dmu_objset_rele(os, FTAG);
7082 return (SET_ERROR(ESRCH));
7083 }
7084
7085 /* Rest of name buffer is passed so snap ID can be appended. */
7086 error = dmu_snapshot_list_next(os, sizeof (name) - len, name + len,
7087 &obj, &off, NULL);
7088
7089 if (error == 0) {
7090 dsl_dataset_t *ds;
7091 dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool;
7092
7093 error = dsl_dataset_hold_obj(dp, obj, FTAG, &ds);
7094 if (error == 0) {
7095 objset_t *ossnap;
7096
7097 error = dmu_objset_from_ds(ds, &ossnap);
7098 if (error == 0)
7099 error = objset_render(ossnap, outnvl);
7100 dsl_dataset_rele(ds, FTAG);
7101 }
7102 } else if (error == ENOENT) {
7103 error = ESRCH;
7104 }
7105
7106 dmu_objset_rele(os, FTAG);
7107
7108 if (error == 0) {
7109 len = strlen(name) + 1;
7110 nextsnap = kmem_alloc(len, KM_SLEEP);
7111 (void) strlcpy(nextsnap, name, len);
7112 fnvlist_add_string(outnvl, "nextsnap", (const char *)nextsnap);
7113 fnvlist_add_uint64(outnvl, "offset", off);
7114 }
7115 return (error);
7116 }
7117
7118 static int
7119 zfs_ioc_pool_get_props_nvl(const char *poolname, nvlist_t *innvl,
7120 nvlist_t *outnvl)
7121 {
7122 spa_t *spa;
7123 int error;
7124 nvlist_t *props = NULL;
7125
7126 ASSERT3P(innvl, ==, NULL);
7127 if ((error = spa_open(poolname, &spa, FTAG)) != 0) {
7128 /*
7129 * If the pool is faulted, there may be properties we can still
7130 * get (such as altroot and cachefile), so attempt to get them
7131 * anyway.
7132 */
7133 mutex_enter(&spa_namespace_lock);
7134 if ((spa = spa_lookup(poolname)) != NULL)
7135 error = spa_prop_get(spa, &props);
7136 mutex_exit(&spa_namespace_lock);
7137 } else {
7138 error = spa_prop_get(spa, &props);
7139 spa_close(spa, FTAG);
7140 }
7141
7142 if (props != NULL) {
7143 fnvlist_merge(outnvl, props);
7144 nvlist_free(props);
7145 } else {
7146 ASSERT3S(error, !=, 0);
7147 }
7148
7149 return (error);
7150 }
7151
7152 /* ARGSUSED */
7153 static int
7154 zfs_ioc_check_krrp(const char *dataset, nvlist_t *innvl, nvlist_t *outnvl)
7155 {
7156 spa_t *spa;
7157 int err;
7158
7159 /*
7160 * Here we use different way to open spa for the given pool,
7161 * because the pool maybe faulted
7162 */
7163
7164 mutex_enter(&spa_namespace_lock);
7165 if ((spa = spa_lookup(dataset)) == NULL) {
7166 mutex_exit(&spa_namespace_lock);
7167 /* From KRRP side everything nice */
7168 return (0);
7169 }
7170
7171 spa_open_ref(spa, FTAG);
7172 mutex_exit(&spa_namespace_lock);
7173
7174 err = autosnap_check_for_destroy(spa_get_autosnap(spa), dataset);
7175 if (err == 0)
7176 err = ENOTSUP;
7177
7178 mutex_enter(&spa_namespace_lock);
7179 spa_close(spa, FTAG);
7180 mutex_exit(&spa_namespace_lock);
7181
7182 return (err != 0 ? SET_ERROR(err) : 0);
7183 }
7184
7185 static void
7186 zfs_ioctl_init(void)
7187 {
7188 zfs_ioctl_register("bulk_list", ZFS_IOC_BULK_LIST,
7189 zfs_ioc_list_from_cursor, zfs_secpolicy_read,
7190 DATASET_NAME, POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7191
7192 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT,
7193 zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME,
7194 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7195
7196 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY,
7197 zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME,
7198 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
7199
7200 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS,
7201 zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME,
7202 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7203
7204 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW,
7205 zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME,
7206 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7207
7208 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE,
7209 zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME,
7210 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7211
7212 zfs_ioctl_register("create", ZFS_IOC_CREATE,
7213 zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME,
7214 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7215
7216 zfs_ioctl_register("clone", ZFS_IOC_CLONE,
7217 zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME,
7218 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7219
7220 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS,
7221 zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME,
7222 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7223
7224 zfs_ioctl_register("check_krrp", ZFS_IOC_CHECK_KRRP,
7225 zfs_ioc_check_krrp, zfs_secpolicy_read, DATASET_NAME,
7226 POOL_CHECK_NONE, B_FALSE, B_FALSE);
7227
7228 zfs_ioctl_register("pool_stats_nvl", ZFS_IOC_POOL_STATS_NVL,
7229 zfs_ioc_pool_stats_nvl, zfs_secpolicy_read, POOL_NAME,
7230 POOL_CHECK_NONE, B_FALSE, B_FALSE);
7231
7232 zfs_ioctl_register("pool_configs_nvl", ZFS_IOC_POOL_CONFIGS_NVL,
7233 zfs_ioc_pool_configs_nvl, zfs_secpolicy_none, NO_NAME,
7234 POOL_CHECK_NONE, B_FALSE, B_FALSE);
7235
7236 zfs_ioctl_register("pool_get_props_nvl", ZFS_IOC_POOL_GET_PROPS_NVL,
7237 zfs_ioc_pool_get_props_nvl, zfs_secpolicy_read, POOL_NAME,
7238 POOL_CHECK_NONE, B_FALSE, B_FALSE);
7239
7240 zfs_ioctl_register("objset_stats_nvl", ZFS_IOC_OBJSET_STATS_NVL,
7241 zfs_ioc_objset_stats_nvl, zfs_secpolicy_read, DATASET_NAME,
7242 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7243
7244 zfs_ioctl_register("dataset_list_next_nvl",
7245 ZFS_IOC_DATASET_LIST_NEXT_NVL, zfs_ioc_dataset_list_next_nvl,
7246 zfs_secpolicy_read, DATASET_NAME, POOL_CHECK_SUSPENDED, B_FALSE,
7247 B_FALSE);
7248
7249 zfs_ioctl_register("snapshot_list_next_nvl",
7250 ZFS_IOC_SNAPSHOT_LIST_NEXT_NVL, zfs_ioc_snapshot_list_next_nvl,
7251 zfs_secpolicy_read, DATASET_NAME, POOL_CHECK_SUSPENDED, B_FALSE,
7252 B_FALSE);
7253
7254 zfs_ioctl_register("hold", ZFS_IOC_HOLD,
7255 zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME,
7256 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7257 zfs_ioctl_register("release", ZFS_IOC_RELEASE,
7258 zfs_ioc_release, zfs_secpolicy_release, POOL_NAME,
7259 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7260
7261 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS,
7262 zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME,
7263 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7264
7265 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,
7266 zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME,
7267 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE);
7268
7269 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK,
7270 zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME,
7271 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7272
7273 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS,
7274 zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME,
7275 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
7276
7277 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS,
7278 zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks,
7279 POOL_NAME,
7280 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7281
7282 zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM,
7283 zfs_ioc_channel_program, zfs_secpolicy_config,
7284 POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE,
7285 B_TRUE);
7286
7287 zfs_ioctl_register("set_props_mds", ZFS_IOC_SET_PROPS_MDS,
7288 zfs_ioc_set_prop_mds, zfs_secpolicy_config,
7289 POOL_NAME,
7290 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
7291
7292 /* IOCTLS that use the legacy function signature */
7293
7294 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,
7295 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY);
7296
7297 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create,
7298 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
7299 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN,
7300 zfs_ioc_pool_scan);
7301 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_TRIM,
7302 zfs_ioc_pool_trim);
7303 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE,
7304 zfs_ioc_pool_upgrade);
7305 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD,
7306 zfs_ioc_vdev_add);
7307 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE,
7308 zfs_ioc_vdev_remove);
7309 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE,
7310 zfs_ioc_vdev_set_state);
7311 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH,
7312 zfs_ioc_vdev_attach);
7313 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH,
7314 zfs_ioc_vdev_detach);
7315 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETL2ADDDT,
7316 zfs_ioc_vdev_setl2adddt);
7317 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH,
7318 zfs_ioc_vdev_setpath);
7319 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU,
7320 zfs_ioc_vdev_setfru);
7321 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS,
7322 zfs_ioc_pool_set_props);
7323 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT,
7324 zfs_ioc_vdev_split);
7325 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID,
7326 zfs_ioc_pool_reguid);
7327
7328 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS,
7329 zfs_ioc_pool_configs, zfs_secpolicy_none);
7330 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT,
7331 zfs_ioc_pool_tryimport, zfs_secpolicy_config);
7332 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT,
7333 zfs_ioc_inject_fault, zfs_secpolicy_inject);
7334 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT,
7335 zfs_ioc_clear_fault, zfs_secpolicy_inject);
7336 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT,
7347 zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE);
7348
7349 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats,
7350 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
7351 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props,
7352 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
7353
7354 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log,
7355 zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED);
7356 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME,
7357 zfs_ioc_dsobj_to_dsname,
7358 zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED);
7359 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY,
7360 zfs_ioc_pool_get_history,
7361 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
7362
7363 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import,
7364 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
7365
7366 zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear,
7367 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
7368 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen,
7369 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7370 zfs_ioctl_register_pool(ZFS_IOC_VDEV_SET_PROPS, zfs_ioc_vdev_set_props,
7371 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7372 zfs_ioctl_register_pool(ZFS_IOC_VDEV_GET_PROPS, zfs_ioc_vdev_get_props,
7373 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7374 zfs_ioctl_register_pool(ZFS_IOC_COS_ALLOC, zfs_ioc_cos_alloc,
7375 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7376 zfs_ioctl_register_pool(ZFS_IOC_COS_FREE, zfs_ioc_cos_free,
7377 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7378 zfs_ioctl_register_pool(ZFS_IOC_COS_LIST, zfs_ioc_cos_list,
7379 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7380 zfs_ioctl_register_pool(ZFS_IOC_COS_SET_PROPS, zfs_ioc_cos_set_props,
7381 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7382 zfs_ioctl_register_pool(ZFS_IOC_COS_GET_PROPS, zfs_ioc_cos_get_props,
7383 zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED);
7384 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN,
7385 zfs_ioc_space_written);
7386 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS,
7387 zfs_ioc_objset_recvd_props);
7388 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ,
7389 zfs_ioc_next_obj);
7390 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL,
7391 zfs_ioc_get_fsacl);
7392 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS,
7393 zfs_ioc_objset_stats);
7394 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS,
7395 zfs_ioc_objset_zplprops);
7396 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT,
7397 zfs_ioc_dataset_list_next);
7398 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT,
7399 zfs_ioc_snapshot_list_next);
7400 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS,
7401 zfs_ioc_send_progress);
7402
7403 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF,
7855 spa_init(FREAD | FWRITE);
7856 zfs_init();
7857 zvol_init();
7858 zfs_ioctl_init();
7859
7860 if ((error = mod_install(&modlinkage)) != 0) {
7861 zvol_fini();
7862 zfs_fini();
7863 spa_fini();
7864 return (error);
7865 }
7866
7867 tsd_create(&zfs_fsyncer_key, NULL);
7868 tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
7869 tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy);
7870
7871 error = ldi_ident_from_mod(&modlinkage, &zfs_li);
7872 ASSERT(error == 0);
7873 mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
7874
7875 if (sysevent_evc_bind(ZFS_EVENT_CHANNEL, &zfs_channel,
7876 EVCH_HOLD_PEND | EVCH_CREAT) != 0)
7877 cmn_err(CE_NOTE, "Failed to bind to zfs event channel");
7878
7879 return (0);
7880 }
7881
7882 int
7883 _fini(void)
7884 {
7885 int error;
7886
7887 if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
7888 return (SET_ERROR(EBUSY));
7889
7890 if ((error = mod_remove(&modlinkage)) != 0)
7891 return (error);
7892
7893 zvol_fini();
7894 zfs_fini();
7895 spa_fini();
7896 if (zfs_nfsshare_inited)
7897 (void) ddi_modclose(nfs_mod);
7898 if (zfs_smbshare_inited)
7899 (void) ddi_modclose(smbsrv_mod);
7900 if (zfs_nfsshare_inited || zfs_smbshare_inited)
7901 (void) ddi_modclose(sharefs_mod);
7902
7903 tsd_destroy(&zfs_fsyncer_key);
7904 ldi_ident_release(zfs_li);
7905 zfs_li = NULL;
7906 mutex_destroy(&zfs_share_lock);
7907
7908 if (zfs_channel)
7909 (void) sysevent_evc_unbind(zfs_channel);
7910
7911 return (error);
7912 }
7913
7914 int
7915 _info(struct modinfo *modinfop)
7916 {
7917 return (mod_info(&modlinkage, modinfop));
7918 }
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