3330 lines
74 KiB
C
3330 lines
74 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/errno.h>
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#include <sys/uio.h>
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#include <sys/buf.h>
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#include <sys/modctl.h>
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#include <sys/open.h>
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#include <sys/file.h>
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#include <sys/kmem.h>
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#include <sys/conf.h>
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#include <sys/cmn_err.h>
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#include <sys/stat.h>
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#include <sys/zfs_ioctl.h>
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#include <sys/zfs_znode.h>
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#include <sys/zap.h>
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#include <sys/spa.h>
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#include <sys/spa_impl.h>
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#include <sys/vdev.h>
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#include <sys/vdev_impl.h>
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#include <sys/dmu.h>
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#include <sys/dsl_dir.h>
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#include <sys/dsl_dataset.h>
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#include <sys/dsl_prop.h>
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#include <sys/dsl_deleg.h>
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#include <sys/dmu_objset.h>
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#include <sys/ddi.h>
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#include <sys/sunddi.h>
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#include <sys/sunldi.h>
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#include <sys/policy.h>
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#include <sys/zone.h>
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#include <sys/nvpair.h>
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#include <sys/pathname.h>
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#include <sys/mount.h>
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#include <sys/sdt.h>
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#include <sys/fs/zfs.h>
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#include <sys/zfs_ctldir.h>
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#include <sys/zfs_dir.h>
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#include <sys/zvol.h>
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#include <sharefs/share.h>
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#include <sys/dmu_objset.h>
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#include "zfs_namecheck.h"
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#include "zfs_prop.h"
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#include "zfs_deleg.h"
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#include "zfs_config.h"
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extern struct modlfs zfs_modlfs;
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extern void zfs_init(void);
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extern void zfs_fini(void);
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ldi_ident_t zfs_li = NULL;
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dev_info_t *zfs_dip;
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typedef int zfs_ioc_func_t(zfs_cmd_t *);
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typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
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typedef struct zfs_ioc_vec {
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zfs_ioc_func_t *zvec_func;
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zfs_secpolicy_func_t *zvec_secpolicy;
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enum {
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NO_NAME,
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POOL_NAME,
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DATASET_NAME
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} zvec_namecheck;
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boolean_t zvec_his_log;
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} zfs_ioc_vec_t;
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static void clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops);
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static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
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boolean_t *);
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int zfs_set_prop_nvlist(const char *, nvlist_t *);
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/* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
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void
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__dprintf(const char *file, const char *func, int line, const char *fmt, ...)
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{
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const char *newfile;
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char buf[256];
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va_list adx;
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/*
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* Get rid of annoying "../common/" prefix to filename.
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*/
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newfile = strrchr(file, '/');
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if (newfile != NULL) {
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newfile = newfile + 1; /* Get rid of leading / */
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} else {
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newfile = file;
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}
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va_start(adx, fmt);
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(void) vsnprintf(buf, sizeof (buf), fmt, adx);
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va_end(adx);
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/*
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* To get this data, use the zfs-dprintf probe as so:
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* dtrace -q -n 'zfs-dprintf \
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* /stringof(arg0) == "dbuf.c"/ \
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* {printf("%s: %s", stringof(arg1), stringof(arg3))}'
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* arg0 = file name
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* arg1 = function name
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* arg2 = line number
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* arg3 = message
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*/
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DTRACE_PROBE4(zfs__dprintf,
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char *, newfile, char *, func, int, line, char *, buf);
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}
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static void
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history_str_free(char *buf)
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{
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vmem_free(buf, HIS_MAX_RECORD_LEN);
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}
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static char *
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history_str_get(zfs_cmd_t *zc)
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{
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char *buf;
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if (zc->zc_history == 0)
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return (NULL);
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buf = vmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP);
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if (copyinstr((void *)(uintptr_t)zc->zc_history,
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buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
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history_str_free(buf);
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return (NULL);
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}
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buf[HIS_MAX_RECORD_LEN -1] = '\0';
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return (buf);
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}
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/*
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* Check to see if the named dataset is currently defined as bootable
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*/
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static boolean_t
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zfs_is_bootfs(const char *name)
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{
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spa_t *spa;
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boolean_t ret = B_FALSE;
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if (spa_open(name, &spa, FTAG) == 0) {
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if (spa->spa_bootfs) {
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objset_t *os;
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if (dmu_objset_open(name, DMU_OST_ZFS,
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DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
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ret = (dmu_objset_id(os) == spa->spa_bootfs);
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dmu_objset_close(os);
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}
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}
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spa_close(spa, FTAG);
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}
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return (ret);
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}
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/*
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* zfs_earlier_version
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*
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* Return non-zero if the spa version is less than requested version.
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*/
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static int
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zfs_earlier_version(const char *name, int version)
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{
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spa_t *spa;
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if (spa_open(name, &spa, FTAG) == 0) {
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if (spa_version(spa) < version) {
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spa_close(spa, FTAG);
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return (1);
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}
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spa_close(spa, FTAG);
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}
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return (0);
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}
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/*
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* zpl_earlier_version
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*
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* Return TRUE if the ZPL version is less than requested version.
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*/
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static boolean_t
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zpl_earlier_version(const char *name, int version)
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{
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objset_t *os;
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boolean_t rc = B_TRUE;
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if (dmu_objset_open(name, DMU_OST_ANY,
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DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
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uint64_t zplversion;
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if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
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rc = zplversion < version;
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dmu_objset_close(os);
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}
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return (rc);
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}
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static void
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zfs_log_history(zfs_cmd_t *zc)
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{
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spa_t *spa;
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char *buf;
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if ((buf = history_str_get(zc)) == NULL)
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return;
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if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
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if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
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(void) spa_history_log(spa, buf, LOG_CMD_NORMAL);
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spa_close(spa, FTAG);
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}
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history_str_free(buf);
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}
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/*
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* Policy for top-level read operations (list pools). Requires no privileges,
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* and can be used in the local zone, as there is no associated dataset.
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*/
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/* ARGSUSED */
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static int
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zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr)
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{
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return (0);
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}
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/*
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* Policy for dataset read operations (list children, get statistics). Requires
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* no privileges, but must be visible in the local zone.
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*/
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/* ARGSUSED */
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static int
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zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr)
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{
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if (INGLOBALZONE(curproc) ||
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zone_dataset_visible(zc->zc_name, NULL))
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return (0);
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return (ENOENT);
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}
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static int
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zfs_dozonecheck(const char *dataset, cred_t *cr)
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{
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uint64_t zoned;
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int writable = 1;
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/*
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* The dataset must be visible by this zone -- check this first
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* so they don't see EPERM on something they shouldn't know about.
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*/
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if (!INGLOBALZONE(curproc) &&
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!zone_dataset_visible(dataset, &writable))
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return (ENOENT);
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if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
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return (ENOENT);
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if (INGLOBALZONE(curproc)) {
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/*
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* If the fs is zoned, only root can access it from the
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* global zone.
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*/
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if (secpolicy_zfs(cr) && zoned)
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return (EPERM);
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} else {
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/*
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* If we are in a local zone, the 'zoned' property must be set.
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*/
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if (!zoned)
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return (EPERM);
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/* must be writable by this zone */
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if (!writable)
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return (EPERM);
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}
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return (0);
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}
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int
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zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
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{
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int error;
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error = zfs_dozonecheck(name, cr);
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if (error == 0) {
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error = secpolicy_zfs(cr);
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if (error)
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error = dsl_deleg_access(name, perm, cr);
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}
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return (error);
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}
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static int
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zfs_secpolicy_setprop(const char *name, zfs_prop_t prop, cred_t *cr)
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{
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/*
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* Check permissions for special properties.
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*/
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switch (prop) {
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default:
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break;
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case ZFS_PROP_ZONED:
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/*
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* Disallow setting of 'zoned' from within a local zone.
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*/
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if (!INGLOBALZONE(curproc))
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return (EPERM);
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break;
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case ZFS_PROP_QUOTA:
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if (!INGLOBALZONE(curproc)) {
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uint64_t zoned;
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char setpoint[MAXNAMELEN];
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/*
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* Unprivileged users are allowed to modify the
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* quota on things *under* (ie. contained by)
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* the thing they own.
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*/
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if (dsl_prop_get_integer(name, "zoned", &zoned,
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setpoint))
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return (EPERM);
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if (!zoned || strlen(name) <= strlen(setpoint))
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return (EPERM);
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}
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break;
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}
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return (zfs_secpolicy_write_perms(name, zfs_prop_to_name(prop), cr));
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}
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int
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zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr)
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{
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int error;
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error = zfs_dozonecheck(zc->zc_name, cr);
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if (error)
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return (error);
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/*
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* permission to set permissions will be evaluated later in
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* dsl_deleg_can_allow()
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*/
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return (0);
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}
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int
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zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr)
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{
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int error;
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error = zfs_secpolicy_write_perms(zc->zc_name,
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ZFS_DELEG_PERM_ROLLBACK, cr);
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if (error == 0)
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error = zfs_secpolicy_write_perms(zc->zc_name,
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ZFS_DELEG_PERM_MOUNT, cr);
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return (error);
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}
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int
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zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
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{
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return (zfs_secpolicy_write_perms(zc->zc_name,
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ZFS_DELEG_PERM_SEND, cr));
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}
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int
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zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
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{
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#ifdef HAVE_ZPL
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if (!INGLOBALZONE(curproc))
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return (EPERM);
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if (secpolicy_nfs(cr) == 0) {
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return (0);
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} else {
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vnode_t *vp;
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int error;
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if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
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NO_FOLLOW, NULL, &vp)) != 0)
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return (error);
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/* Now make sure mntpnt and dataset are ZFS */
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if (vp->v_vfsp->vfs_fstype != zfsfstype ||
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(strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
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zc->zc_name) != 0)) {
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VN_RELE(vp);
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return (EPERM);
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}
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VN_RELE(vp);
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return (dsl_deleg_access(zc->zc_name,
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ZFS_DELEG_PERM_SHARE, cr));
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}
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#else
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return (ENOTSUP);
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#endif /* HAVE_ZPL */
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}
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static int
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zfs_get_parent(const char *datasetname, char *parent, int parentsize)
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{
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char *cp;
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/*
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* Remove the @bla or /bla from the end of the name to get the parent.
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*/
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(void) strncpy(parent, datasetname, parentsize);
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cp = strrchr(parent, '@');
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if (cp != NULL) {
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cp[0] = '\0';
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} else {
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cp = strrchr(parent, '/');
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if (cp == NULL)
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return (ENOENT);
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cp[0] = '\0';
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}
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return (0);
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}
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int
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zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
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{
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int error;
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if ((error = zfs_secpolicy_write_perms(name,
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ZFS_DELEG_PERM_MOUNT, cr)) != 0)
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return (error);
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return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
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}
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static int
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zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr)
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{
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return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
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}
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|
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/*
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* Must have sys_config privilege to check the iscsi permission
|
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*/
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/* ARGSUSED */
|
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static int
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zfs_secpolicy_iscsi(zfs_cmd_t *zc, cred_t *cr)
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{
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return (secpolicy_zfs(cr));
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}
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|
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int
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zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
|
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{
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char parentname[MAXNAMELEN];
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int error;
|
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|
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if ((error = zfs_secpolicy_write_perms(from,
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ZFS_DELEG_PERM_RENAME, cr)) != 0)
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return (error);
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if ((error = zfs_secpolicy_write_perms(from,
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ZFS_DELEG_PERM_MOUNT, cr)) != 0)
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return (error);
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if ((error = zfs_get_parent(to, parentname,
|
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sizeof (parentname))) != 0)
|
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return (error);
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if ((error = zfs_secpolicy_write_perms(parentname,
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ZFS_DELEG_PERM_CREATE, cr)) != 0)
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return (error);
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if ((error = zfs_secpolicy_write_perms(parentname,
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ZFS_DELEG_PERM_MOUNT, cr)) != 0)
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return (error);
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return (error);
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}
|
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|
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static int
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zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr)
|
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{
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return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
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}
|
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|
|
static int
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zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr)
|
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{
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char parentname[MAXNAMELEN];
|
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objset_t *clone;
|
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int error;
|
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|
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error = zfs_secpolicy_write_perms(zc->zc_name,
|
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ZFS_DELEG_PERM_PROMOTE, cr);
|
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if (error)
|
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return (error);
|
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|
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error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
|
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DS_MODE_USER | DS_MODE_READONLY, &clone);
|
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|
|
if (error == 0) {
|
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dsl_dataset_t *pclone = NULL;
|
|
dsl_dir_t *dd;
|
|
dd = clone->os->os_dsl_dataset->ds_dir;
|
|
|
|
rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER);
|
|
error = dsl_dataset_hold_obj(dd->dd_pool,
|
|
dd->dd_phys->dd_origin_obj, FTAG, &pclone);
|
|
rw_exit(&dd->dd_pool->dp_config_rwlock);
|
|
if (error) {
|
|
dmu_objset_close(clone);
|
|
return (error);
|
|
}
|
|
|
|
error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_MOUNT, cr);
|
|
|
|
dsl_dataset_name(pclone, parentname);
|
|
dmu_objset_close(clone);
|
|
dsl_dataset_rele(pclone, FTAG);
|
|
if (error == 0)
|
|
error = zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_PROMOTE, cr);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
if ((error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
|
|
return (error);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_MOUNT, cr)) != 0)
|
|
return (error);
|
|
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_CREATE, cr));
|
|
}
|
|
|
|
int
|
|
zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
if ((error = zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_SNAPSHOT, cr)) != 0)
|
|
return (error);
|
|
|
|
error = zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_MOUNT, cr);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
|
|
return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr));
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
char parentname[MAXNAMELEN];
|
|
int error;
|
|
|
|
if ((error = zfs_get_parent(zc->zc_name, parentname,
|
|
sizeof (parentname))) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_value[0] != '\0') {
|
|
if ((error = zfs_secpolicy_write_perms(zc->zc_value,
|
|
ZFS_DELEG_PERM_CLONE, cr)) != 0)
|
|
return (error);
|
|
}
|
|
|
|
if ((error = zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_CREATE, cr)) != 0)
|
|
return (error);
|
|
|
|
error = zfs_secpolicy_write_perms(parentname,
|
|
ZFS_DELEG_PERM_MOUNT, cr);
|
|
|
|
return (error);
|
|
}
|
|
|
|
#ifdef HAVE_ZPL
|
|
static int
|
|
zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
int error;
|
|
|
|
error = secpolicy_fs_unmount(cr, NULL);
|
|
if (error) {
|
|
error = dsl_deleg_access(zc->zc_name, ZFS_DELEG_PERM_MOUNT, cr);
|
|
}
|
|
return (error);
|
|
}
|
|
#endif /* HAVE_ZPL */
|
|
|
|
/*
|
|
* Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
|
|
* SYS_CONFIG privilege, which is not available in a local zone.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
if (secpolicy_sys_config(cr, B_FALSE) != 0)
|
|
return (EPERM);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Just like zfs_secpolicy_config, except that we will check for
|
|
* mount permission on the dataset for permission to create/remove
|
|
* the minor nodes.
|
|
*/
|
|
static int
|
|
zfs_secpolicy_minor(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
if (secpolicy_sys_config(cr, B_FALSE) != 0) {
|
|
return (dsl_deleg_access(zc->zc_name,
|
|
ZFS_DELEG_PERM_MOUNT, cr));
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Policy for fault injection. Requires all privileges.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
return (secpolicy_zinject(cr));
|
|
}
|
|
|
|
static int
|
|
zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr)
|
|
{
|
|
zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
if (!zfs_prop_user(zc->zc_value))
|
|
return (EINVAL);
|
|
return (zfs_secpolicy_write_perms(zc->zc_name,
|
|
ZFS_DELEG_PERM_USERPROP, cr));
|
|
} else {
|
|
if (!zfs_prop_inheritable(prop))
|
|
return (EINVAL);
|
|
return (zfs_secpolicy_setprop(zc->zc_name, prop, cr));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Returns the nvlist as specified by the user in the zfs_cmd_t.
|
|
*/
|
|
static int
|
|
get_nvlist(uint64_t nvl, uint64_t size, nvlist_t **nvp)
|
|
{
|
|
char *packed;
|
|
int error;
|
|
nvlist_t *list = NULL;
|
|
|
|
/*
|
|
* Read in and unpack the user-supplied nvlist.
|
|
*/
|
|
if (size == 0)
|
|
return (EINVAL);
|
|
|
|
packed = kmem_alloc(size, KM_SLEEP);
|
|
|
|
if ((error = xcopyin((void *)(uintptr_t)nvl, packed, size)) != 0) {
|
|
kmem_free(packed, size);
|
|
return (error);
|
|
}
|
|
|
|
if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
|
|
kmem_free(packed, size);
|
|
return (error);
|
|
}
|
|
|
|
kmem_free(packed, size);
|
|
|
|
*nvp = list;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
|
|
{
|
|
char *packed = NULL;
|
|
size_t size;
|
|
int error;
|
|
|
|
VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0);
|
|
|
|
if (size > zc->zc_nvlist_dst_size) {
|
|
error = ENOMEM;
|
|
} else {
|
|
packed = vmem_alloc(size, KM_SLEEP);
|
|
VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE,
|
|
KM_SLEEP) == 0);
|
|
error = xcopyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
|
|
size);
|
|
vmem_free(packed, size);
|
|
}
|
|
|
|
zc->zc_nvlist_dst_size = size;
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_create(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
nvlist_t *config, *props = NULL;
|
|
nvlist_t *rootprops = NULL;
|
|
nvlist_t *zplprops = NULL;
|
|
char *buf;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf,
|
|
zc->zc_nvlist_conf_size, &config)))
|
|
return (error);
|
|
|
|
if (zc->zc_nvlist_src_size != 0 && (error =
|
|
get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, &props))) {
|
|
nvlist_free(config);
|
|
return (error);
|
|
}
|
|
|
|
if (props) {
|
|
nvlist_t *nvl = NULL;
|
|
uint64_t version = SPA_VERSION;
|
|
|
|
(void) nvlist_lookup_uint64(props,
|
|
zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
|
|
if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) {
|
|
error = EINVAL;
|
|
goto pool_props_bad;
|
|
}
|
|
(void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
|
|
if (nvl) {
|
|
error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
|
|
if (error != 0) {
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
return (error);
|
|
}
|
|
(void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
|
|
}
|
|
VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
error = zfs_fill_zplprops_root(version, rootprops,
|
|
zplprops, NULL);
|
|
if (error)
|
|
goto pool_props_bad;
|
|
}
|
|
|
|
buf = history_str_get(zc);
|
|
|
|
error = spa_create(zc->zc_name, config, props, buf, zplprops);
|
|
|
|
/*
|
|
* Set the remaining root properties
|
|
*/
|
|
if (!error &&
|
|
(error = zfs_set_prop_nvlist(zc->zc_name, rootprops)) != 0)
|
|
(void) spa_destroy(zc->zc_name);
|
|
|
|
if (buf != NULL)
|
|
history_str_free(buf);
|
|
|
|
pool_props_bad:
|
|
nvlist_free(rootprops);
|
|
nvlist_free(zplprops);
|
|
nvlist_free(config);
|
|
nvlist_free(props);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_destroy(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
zfs_log_history(zc);
|
|
error = spa_destroy(zc->zc_name);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_import(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
nvlist_t *config, *props = NULL;
|
|
uint64_t guid;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
&config)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_nvlist_src_size != 0 && (error =
|
|
get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, &props))) {
|
|
nvlist_free(config);
|
|
return (error);
|
|
}
|
|
|
|
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
|
|
guid != zc->zc_guid)
|
|
error = EINVAL;
|
|
else if (zc->zc_cookie)
|
|
error = spa_import_faulted(zc->zc_name, config,
|
|
props);
|
|
else
|
|
error = spa_import(zc->zc_name, config, props);
|
|
|
|
nvlist_free(config);
|
|
|
|
if (props)
|
|
nvlist_free(props);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_export(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
boolean_t force = (boolean_t)zc->zc_cookie;
|
|
boolean_t hardforce = (boolean_t)zc->zc_guid;
|
|
|
|
zfs_log_history(zc);
|
|
error = spa_export(zc->zc_name, NULL, force, hardforce);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_configs(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *configs;
|
|
int error;
|
|
|
|
if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
|
|
return (EEXIST);
|
|
|
|
error = put_nvlist(zc, configs);
|
|
|
|
nvlist_free(configs);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_stats(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *config;
|
|
int error;
|
|
int ret = 0;
|
|
|
|
error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
|
|
sizeof (zc->zc_value));
|
|
|
|
if (config != NULL) {
|
|
ret = put_nvlist(zc, config);
|
|
nvlist_free(config);
|
|
|
|
/*
|
|
* The config may be present even if 'error' is non-zero.
|
|
* In this case we return success, and preserve the real errno
|
|
* in 'zc_cookie'.
|
|
*/
|
|
zc->zc_cookie = error;
|
|
} else {
|
|
ret = error;
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Try to import the given pool, returning pool stats as appropriate so that
|
|
* user land knows which devices are available and overall pool health.
|
|
*/
|
|
static int
|
|
zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *tryconfig, *config;
|
|
int error;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
&tryconfig)) != 0)
|
|
return (error);
|
|
|
|
config = spa_tryimport(tryconfig);
|
|
|
|
nvlist_free(tryconfig);
|
|
|
|
if (config == NULL)
|
|
return (EINVAL);
|
|
|
|
error = put_nvlist(zc, config);
|
|
nvlist_free(config);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_scrub(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
error = spa_scrub(spa, zc->zc_cookie);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_freeze(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error == 0) {
|
|
spa_freeze(spa);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) {
|
|
spa_close(spa, FTAG);
|
|
return (EINVAL);
|
|
}
|
|
|
|
spa_upgrade(spa, zc->zc_cookie);
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_get_history(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
char *hist_buf;
|
|
uint64_t size;
|
|
int error;
|
|
|
|
if ((size = zc->zc_history_len) == 0)
|
|
return (EINVAL);
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
|
|
spa_close(spa, FTAG);
|
|
return (ENOTSUP);
|
|
}
|
|
|
|
hist_buf = kmem_alloc(size, KM_SLEEP);
|
|
if ((error = spa_history_get(spa, &zc->zc_history_offset,
|
|
&zc->zc_history_len, hist_buf)) == 0) {
|
|
error = xcopyout(hist_buf,
|
|
(char *)(uintptr_t)zc->zc_history,
|
|
zc->zc_history_len);
|
|
}
|
|
|
|
spa_close(spa, FTAG);
|
|
kmem_free(hist_buf, size);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
|
|
if ((error = dsl_dsobj_to_dsname(zc->zc_name,zc->zc_obj,zc->zc_value)))
|
|
return (error);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_obj_to_path(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *osp;
|
|
int error;
|
|
|
|
if ((error = dmu_objset_open(zc->zc_name, DMU_OST_ZFS,
|
|
DS_MODE_USER | DS_MODE_READONLY, &osp)) != 0)
|
|
return (error);
|
|
error = zfs_obj_to_path(osp, zc->zc_obj, zc->zc_value,
|
|
sizeof (zc->zc_value));
|
|
dmu_objset_close(osp);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_add(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
nvlist_t *config, **l2cache, **spares;
|
|
uint_t nl2cache = 0, nspares = 0;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
&config);
|
|
(void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
|
|
&l2cache, &nl2cache);
|
|
|
|
(void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
|
|
&spares, &nspares);
|
|
|
|
/*
|
|
* A root pool with concatenated devices is not supported.
|
|
* Thus, can not add a device to a root pool.
|
|
*
|
|
* Intent log device can not be added to a rootpool because
|
|
* during mountroot, zil is replayed, a seperated log device
|
|
* can not be accessed during the mountroot time.
|
|
*
|
|
* l2cache and spare devices are ok to be added to a rootpool.
|
|
*/
|
|
if (spa->spa_bootfs != 0 && nl2cache == 0 && nspares == 0) {
|
|
spa_close(spa, FTAG);
|
|
return (EDOM);
|
|
}
|
|
|
|
if (error == 0) {
|
|
error = spa_vdev_add(spa, config);
|
|
nvlist_free(config);
|
|
}
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_remove(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
vdev_state_t newstate = VDEV_STATE_UNKNOWN;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
switch (zc->zc_cookie) {
|
|
case VDEV_STATE_ONLINE:
|
|
error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
|
|
break;
|
|
|
|
case VDEV_STATE_OFFLINE:
|
|
error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
|
|
break;
|
|
|
|
case VDEV_STATE_FAULTED:
|
|
error = vdev_fault(spa, zc->zc_guid);
|
|
break;
|
|
|
|
case VDEV_STATE_DEGRADED:
|
|
error = vdev_degrade(spa, zc->zc_guid);
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
}
|
|
zc->zc_cookie = newstate;
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_attach(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int replacing = zc->zc_cookie;
|
|
nvlist_t *config;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
|
|
&config)) == 0) {
|
|
error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
|
|
nvlist_free(config);
|
|
}
|
|
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_detach(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
|
|
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
char *path = zc->zc_value;
|
|
uint64_t guid = zc->zc_guid;
|
|
int error;
|
|
|
|
error = spa_open(zc->zc_name, &spa, FTAG);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
error = spa_vdev_setpath(spa, guid, path);
|
|
spa_close(spa, FTAG);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_objset_stats stats
|
|
* zc_nvlist_dst property nvlist
|
|
* zc_nvlist_dst_size size of property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_objset_stats(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os = NULL;
|
|
int error;
|
|
nvlist_t *nv;
|
|
|
|
if ((error = dmu_objset_open(zc->zc_name,
|
|
DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)))
|
|
return (error);
|
|
|
|
dmu_objset_fast_stat(os, &zc->zc_objset_stats);
|
|
|
|
if (zc->zc_nvlist_dst != 0 &&
|
|
(error = dsl_prop_get_all(os, &nv, FALSE)) == 0) {
|
|
dmu_objset_stats(os, nv);
|
|
/*
|
|
* NB: zvol_get_stats() will read the objset contents,
|
|
* which we aren't supposed to do with a
|
|
* DS_MODE_USER hold, because it could be
|
|
* inconsistent. So this is a bit of a workaround...
|
|
*/
|
|
if (!zc->zc_objset_stats.dds_inconsistent) {
|
|
if (dmu_objset_type(os) == DMU_OST_ZVOL)
|
|
VERIFY(zvol_get_stats(os, nv) == 0);
|
|
}
|
|
error = put_nvlist(zc, nv);
|
|
nvlist_free(nv);
|
|
}
|
|
|
|
dmu_objset_close(os);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
|
|
{
|
|
uint64_t value;
|
|
int error;
|
|
|
|
/*
|
|
* zfs_get_zplprop() will either find a value or give us
|
|
* the default value (if there is one).
|
|
*/
|
|
if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
|
|
return (error);
|
|
VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_dst_size size of buffer for zpl property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_dst zpl property nvlist
|
|
* zc_nvlist_dst_size size of zpl property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int err;
|
|
|
|
if ((err = dmu_objset_open(zc->zc_name,
|
|
DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)))
|
|
return (err);
|
|
|
|
dmu_objset_fast_stat(os, &zc->zc_objset_stats);
|
|
|
|
/*
|
|
* NB: nvl_add_zplprop() will read the objset contents,
|
|
* which we aren't supposed to do with a DS_MODE_USER
|
|
* hold, because it could be inconsistent.
|
|
*/
|
|
if (zc->zc_nvlist_dst != 0 &&
|
|
!zc->zc_objset_stats.dds_inconsistent &&
|
|
dmu_objset_type(os) == DMU_OST_ZFS) {
|
|
nvlist_t *nv;
|
|
|
|
VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
|
|
(err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
|
|
(err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
|
|
(err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
|
|
err = put_nvlist(zc, nv);
|
|
nvlist_free(nv);
|
|
} else {
|
|
err = ENOENT;
|
|
}
|
|
dmu_objset_close(os);
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_cookie zap cursor
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_name name of next filesystem
|
|
* zc_objset_stats stats
|
|
* zc_nvlist_dst property nvlist
|
|
* zc_nvlist_dst_size size of property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
char *p;
|
|
|
|
if ((error = dmu_objset_open(zc->zc_name,
|
|
DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))) {
|
|
if (error == ENOENT)
|
|
error = ESRCH;
|
|
return (error);
|
|
}
|
|
|
|
p = strrchr(zc->zc_name, '/');
|
|
if (p == NULL || p[1] != '\0')
|
|
(void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
|
|
p = zc->zc_name + strlen(zc->zc_name);
|
|
|
|
if (zc->zc_cookie == 0) {
|
|
uint64_t cookie = 0;
|
|
int len = sizeof (zc->zc_name) - (p - zc->zc_name);
|
|
|
|
while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0)
|
|
dmu_objset_prefetch(p, NULL);
|
|
}
|
|
|
|
do {
|
|
error = dmu_dir_list_next(os,
|
|
sizeof (zc->zc_name) - (p - zc->zc_name), p,
|
|
NULL, &zc->zc_cookie);
|
|
if (error == ENOENT)
|
|
error = ESRCH;
|
|
} while (error == 0 && !INGLOBALZONE(curproc) &&
|
|
!zone_dataset_visible(zc->zc_name, NULL));
|
|
dmu_objset_close(os);
|
|
|
|
/*
|
|
* If it's a hidden dataset (ie. with a '$' in its name), don't
|
|
* try to get stats for it. Userland will skip over it.
|
|
*/
|
|
if (error == 0 && strchr(zc->zc_name, '$') == NULL)
|
|
error = zfs_ioc_objset_stats(zc); /* fill in the stats */
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_cookie zap cursor
|
|
* zc_nvlist_dst_size size of buffer for property nvlist
|
|
*
|
|
* outputs:
|
|
* zc_name name of next snapshot
|
|
* zc_objset_stats stats
|
|
* zc_nvlist_dst property nvlist
|
|
* zc_nvlist_dst_size size of property nvlist
|
|
*/
|
|
static int
|
|
zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *os;
|
|
int error;
|
|
|
|
error = dmu_objset_open(zc->zc_name,
|
|
DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os);
|
|
if (error)
|
|
return (error == ENOENT ? ESRCH : error);
|
|
|
|
if (zc->zc_cookie == 0)
|
|
dmu_objset_find(zc->zc_name, dmu_objset_prefetch,
|
|
NULL, DS_FIND_SNAPSHOTS);
|
|
/*
|
|
* A dataset name of maximum length cannot have any snapshots,
|
|
* so exit immediately.
|
|
*/
|
|
if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
|
|
dmu_objset_close(os);
|
|
return (ESRCH);
|
|
}
|
|
|
|
error = dmu_snapshot_list_next(os,
|
|
sizeof (zc->zc_name) - strlen(zc->zc_name),
|
|
zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie, NULL);
|
|
dmu_objset_close(os);
|
|
if (error == 0)
|
|
error = zfs_ioc_objset_stats(zc); /* fill in the stats */
|
|
else if (error == ENOENT)
|
|
error = ESRCH;
|
|
|
|
/* if we failed, undo the @ that we tacked on to zc_name */
|
|
if (error)
|
|
*strchr(zc->zc_name, '@') = '\0';
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
|
|
{
|
|
nvpair_t *elem;
|
|
int error;
|
|
uint64_t intval;
|
|
char *strval;
|
|
|
|
/*
|
|
* First validate permission to set all of the properties
|
|
*/
|
|
elem = NULL;
|
|
while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
|
|
const char *propname = nvpair_name(elem);
|
|
zfs_prop_t prop = zfs_name_to_prop(propname);
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
/*
|
|
* If this is a user-defined property, it must be a
|
|
* string, and there is no further validation to do.
|
|
*/
|
|
if (!zfs_prop_user(propname) ||
|
|
nvpair_type(elem) != DATA_TYPE_STRING)
|
|
return (EINVAL);
|
|
|
|
if ((error = zfs_secpolicy_write_perms(name,
|
|
ZFS_DELEG_PERM_USERPROP, CRED())))
|
|
return (error);
|
|
continue;
|
|
}
|
|
|
|
if ((error = zfs_secpolicy_setprop(name, prop, CRED())) != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* Check that this value is valid for this pool version
|
|
*/
|
|
switch (prop) {
|
|
default:
|
|
break;
|
|
case ZFS_PROP_COMPRESSION:
|
|
/*
|
|
* If the user specified gzip compression, make sure
|
|
* the SPA supports it. We ignore any errors here since
|
|
* we'll catch them later.
|
|
*/
|
|
if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
|
|
nvpair_value_uint64(elem, &intval) == 0) {
|
|
if (intval >= ZIO_COMPRESS_GZIP_1 &&
|
|
intval <= ZIO_COMPRESS_GZIP_9 &&
|
|
zfs_earlier_version(name,
|
|
SPA_VERSION_GZIP_COMPRESSION))
|
|
return (ENOTSUP);
|
|
|
|
/*
|
|
* If this is a bootable dataset then
|
|
* verify that the compression algorithm
|
|
* is supported for booting. We must return
|
|
* something other than ENOTSUP since it
|
|
* implies a downrev pool version.
|
|
*/
|
|
if (zfs_is_bootfs(name) &&
|
|
!BOOTFS_COMPRESS_VALID(intval))
|
|
return (ERANGE);
|
|
}
|
|
break;
|
|
|
|
case ZFS_PROP_COPIES:
|
|
if (zfs_earlier_version(name,
|
|
SPA_VERSION_DITTO_BLOCKS))
|
|
return (ENOTSUP);
|
|
break;
|
|
|
|
case ZFS_PROP_SHARESMB:
|
|
if (zpl_earlier_version(name, ZPL_VERSION_FUID))
|
|
return (ENOTSUP);
|
|
break;
|
|
|
|
case ZFS_PROP_ACLINHERIT:
|
|
if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
|
|
nvpair_value_uint64(elem, &intval) == 0)
|
|
if (intval == ZFS_ACL_PASSTHROUGH_X &&
|
|
zfs_earlier_version(name,
|
|
SPA_VERSION_PASSTHROUGH_X))
|
|
return (ENOTSUP);
|
|
}
|
|
}
|
|
|
|
elem = NULL;
|
|
while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
|
|
const char *propname = nvpair_name(elem);
|
|
zfs_prop_t prop = zfs_name_to_prop(propname);
|
|
|
|
if (prop == ZPROP_INVAL) {
|
|
VERIFY(nvpair_value_string(elem, &strval) == 0);
|
|
error = dsl_prop_set(name, propname, 1,
|
|
strlen(strval) + 1, strval);
|
|
if (error == 0)
|
|
continue;
|
|
else
|
|
return (error);
|
|
}
|
|
|
|
switch (prop) {
|
|
case ZFS_PROP_QUOTA:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = dsl_dir_set_quota(name, intval)) != 0)
|
|
return (error);
|
|
break;
|
|
|
|
case ZFS_PROP_REFQUOTA:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = dsl_dataset_set_quota(name, intval)) != 0)
|
|
return (error);
|
|
break;
|
|
|
|
case ZFS_PROP_RESERVATION:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = dsl_dir_set_reservation(name,
|
|
intval)) != 0)
|
|
return (error);
|
|
break;
|
|
|
|
case ZFS_PROP_REFRESERVATION:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = dsl_dataset_set_reservation(name,
|
|
intval)) != 0)
|
|
return (error);
|
|
break;
|
|
|
|
#ifdef HAVE_ZVOL
|
|
case ZFS_PROP_VOLSIZE:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = zvol_set_volsize(name,
|
|
ddi_driver_major(zfs_dip), intval)) != 0)
|
|
return (error);
|
|
break;
|
|
|
|
case ZFS_PROP_VOLBLOCKSIZE:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = zvol_set_volblocksize(name, intval)) != 0)
|
|
return (error);
|
|
break;
|
|
#else
|
|
case ZFS_PROP_VOLSIZE:
|
|
case ZFS_PROP_VOLBLOCKSIZE:
|
|
return (ENOTSUP);
|
|
#endif /* HAVE_ZVOL */
|
|
|
|
case ZFS_PROP_VERSION:
|
|
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
|
|
(error = zfs_set_version(name, intval)) != 0)
|
|
return (error);
|
|
break;
|
|
|
|
default:
|
|
if (nvpair_type(elem) == DATA_TYPE_STRING) {
|
|
if (zfs_prop_get_type(prop) !=
|
|
PROP_TYPE_STRING)
|
|
return (EINVAL);
|
|
VERIFY(nvpair_value_string(elem, &strval) == 0);
|
|
if ((error = dsl_prop_set(name,
|
|
nvpair_name(elem), 1, strlen(strval) + 1,
|
|
strval)) != 0)
|
|
return (error);
|
|
} else if (nvpair_type(elem) == DATA_TYPE_UINT64) {
|
|
const char *unused;
|
|
|
|
VERIFY(nvpair_value_uint64(elem, &intval) == 0);
|
|
|
|
switch (zfs_prop_get_type(prop)) {
|
|
case PROP_TYPE_NUMBER:
|
|
break;
|
|
case PROP_TYPE_STRING:
|
|
return (EINVAL);
|
|
case PROP_TYPE_INDEX:
|
|
if (zfs_prop_index_to_string(prop,
|
|
intval, &unused) != 0)
|
|
return (EINVAL);
|
|
break;
|
|
default:
|
|
cmn_err(CE_PANIC,
|
|
"unknown property type");
|
|
break;
|
|
}
|
|
|
|
if ((error = dsl_prop_set(name, propname,
|
|
8, 1, &intval)) != 0)
|
|
return (error);
|
|
} else {
|
|
return (EINVAL);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value name of property to inherit
|
|
* zc_nvlist_src{_size} nvlist of properties to apply
|
|
* zc_cookie clear existing local props?
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_set_prop(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *nvl;
|
|
int error;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&nvl)) != 0)
|
|
return (error);
|
|
|
|
if (zc->zc_cookie) {
|
|
nvlist_t *origprops;
|
|
objset_t *os;
|
|
|
|
if (dmu_objset_open(zc->zc_name, DMU_OST_ANY,
|
|
DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
|
|
if (dsl_prop_get_all(os, &origprops, TRUE) == 0) {
|
|
clear_props(zc->zc_name, origprops, nvl);
|
|
nvlist_free(origprops);
|
|
}
|
|
dmu_objset_close(os);
|
|
}
|
|
|
|
}
|
|
|
|
error = zfs_set_prop_nvlist(zc->zc_name, nvl);
|
|
|
|
nvlist_free(nvl);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value name of property to inherit
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_inherit_prop(zfs_cmd_t *zc)
|
|
{
|
|
/* the property name has been validated by zfs_secpolicy_inherit() */
|
|
return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL));
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_set_props(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *props;
|
|
spa_t *spa;
|
|
int error;
|
|
nvpair_t *elem;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&props)))
|
|
return (error);
|
|
|
|
/*
|
|
* If the only property is the configfile, then just do a spa_lookup()
|
|
* to handle the faulted case.
|
|
*/
|
|
elem = nvlist_next_nvpair(props, NULL);
|
|
if (elem != NULL && strcmp(nvpair_name(elem),
|
|
zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
|
|
nvlist_next_nvpair(props, elem) == NULL) {
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(zc->zc_name)) != NULL) {
|
|
spa_configfile_set(spa, props, B_FALSE);
|
|
spa_config_sync(spa, B_FALSE, B_TRUE);
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
if (spa != NULL)
|
|
return (0);
|
|
}
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
|
|
nvlist_free(props);
|
|
return (error);
|
|
}
|
|
|
|
error = spa_prop_set(spa, props);
|
|
|
|
nvlist_free(props);
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_pool_get_props(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
nvlist_t *nvp = NULL;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
|
|
/*
|
|
* If the pool is faulted, there may be properties we can still
|
|
* get (such as altroot and cachefile), so attempt to get them
|
|
* anyway.
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
if ((spa = spa_lookup(zc->zc_name)) != NULL)
|
|
error = spa_prop_get(spa, &nvp);
|
|
mutex_exit(&spa_namespace_lock);
|
|
} else {
|
|
error = spa_prop_get(spa, &nvp);
|
|
spa_close(spa, FTAG);
|
|
}
|
|
|
|
if (error == 0 && zc->zc_nvlist_dst != 0)
|
|
error = put_nvlist(zc, nvp);
|
|
else
|
|
error = EFAULT;
|
|
|
|
nvlist_free(nvp);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
|
|
{
|
|
#ifdef HAVE_ZPL
|
|
nvlist_t *nvp;
|
|
int error;
|
|
uint32_t uid;
|
|
uint32_t gid;
|
|
uint32_t *groups;
|
|
uint_t group_cnt;
|
|
cred_t *usercred;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&nvp)) != 0) {
|
|
return (error);
|
|
}
|
|
|
|
if ((error = nvlist_lookup_uint32(nvp,
|
|
ZFS_DELEG_PERM_UID, &uid)) != 0) {
|
|
nvlist_free(nvp);
|
|
return (EPERM);
|
|
}
|
|
|
|
if ((error = nvlist_lookup_uint32(nvp,
|
|
ZFS_DELEG_PERM_GID, &gid)) != 0) {
|
|
nvlist_free(nvp);
|
|
return (EPERM);
|
|
}
|
|
|
|
if ((error = nvlist_lookup_uint32_array(nvp, ZFS_DELEG_PERM_GROUPS,
|
|
&groups, &group_cnt)) != 0) {
|
|
nvlist_free(nvp);
|
|
return (EPERM);
|
|
}
|
|
usercred = cralloc();
|
|
if ((crsetugid(usercred, uid, gid) != 0) ||
|
|
(crsetgroups(usercred, group_cnt, (gid_t *)groups) != 0)) {
|
|
nvlist_free(nvp);
|
|
crfree(usercred);
|
|
return (EPERM);
|
|
}
|
|
nvlist_free(nvp);
|
|
error = dsl_deleg_access(zc->zc_name,
|
|
zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred);
|
|
crfree(usercred);
|
|
return (error);
|
|
#else
|
|
return (ENOTSUP);
|
|
#endif /* HAVE_ZPL */
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_nvlist_src{_size} nvlist of delegated permissions
|
|
* zc_perm_action allow/unallow flag
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_set_fsacl(zfs_cmd_t *zc)
|
|
{
|
|
int error;
|
|
nvlist_t *fsaclnv = NULL;
|
|
|
|
if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&fsaclnv)) != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* Verify nvlist is constructed correctly
|
|
*/
|
|
if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
|
|
nvlist_free(fsaclnv);
|
|
return (EINVAL);
|
|
}
|
|
|
|
/*
|
|
* If we don't have PRIV_SYS_MOUNT, then validate
|
|
* that user is allowed to hand out each permission in
|
|
* the nvlist(s)
|
|
*/
|
|
|
|
error = secpolicy_zfs(CRED());
|
|
if (error) {
|
|
if (zc->zc_perm_action == B_FALSE) {
|
|
error = dsl_deleg_can_allow(zc->zc_name,
|
|
fsaclnv, CRED());
|
|
} else {
|
|
error = dsl_deleg_can_unallow(zc->zc_name,
|
|
fsaclnv, CRED());
|
|
}
|
|
}
|
|
|
|
if (error == 0)
|
|
error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
|
|
|
|
nvlist_free(fsaclnv);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
*
|
|
* outputs:
|
|
* zc_nvlist_src{_size} nvlist of delegated permissions
|
|
*/
|
|
static int
|
|
zfs_ioc_get_fsacl(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *nvp;
|
|
int error;
|
|
|
|
if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
|
|
error = put_nvlist(zc, nvp);
|
|
nvlist_free(nvp);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of volume
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_create_minor(zfs_cmd_t *zc)
|
|
{
|
|
#ifdef HAVE_ZVOL
|
|
return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip)));
|
|
#else
|
|
return (ENOTSUP);
|
|
#endif /* HAVE_ZVOL */
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of volume
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_remove_minor(zfs_cmd_t *zc)
|
|
{
|
|
#ifdef HAVE_ZVOL
|
|
return (zvol_remove_minor(zc->zc_name));
|
|
#else
|
|
return (ENOTSUP);
|
|
#endif /* HAVE_ZVOL */
|
|
}
|
|
|
|
#ifdef HAVE_ZPL
|
|
/*
|
|
* Search the vfs list for a specified resource. Returns a pointer to it
|
|
* or NULL if no suitable entry is found. The caller of this routine
|
|
* is responsible for releasing the returned vfs pointer.
|
|
*/
|
|
static vfs_t *
|
|
zfs_get_vfs(const char *resource)
|
|
{
|
|
struct vfs *vfsp;
|
|
struct vfs *vfs_found = NULL;
|
|
|
|
vfs_list_read_lock();
|
|
vfsp = rootvfs;
|
|
do {
|
|
if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) {
|
|
VFS_HOLD(vfsp);
|
|
vfs_found = vfsp;
|
|
break;
|
|
}
|
|
vfsp = vfsp->vfs_next;
|
|
} while (vfsp != rootvfs);
|
|
vfs_list_unlock();
|
|
return (vfs_found);
|
|
}
|
|
#endif /* HAVE_ZPL */
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
|
|
{
|
|
zfs_creat_t *zct = arg;
|
|
|
|
zfs_create_fs(os, cr, zct->zct_zplprops, tx);
|
|
}
|
|
|
|
#define ZFS_PROP_UNDEFINED ((uint64_t)-1)
|
|
|
|
/*
|
|
* inputs:
|
|
* createprops list of properties requested by creator
|
|
* default_zplver zpl version to use if unspecified in createprops
|
|
* fuids_ok fuids allowed in this version of the spa?
|
|
* os parent objset pointer (NULL if root fs)
|
|
*
|
|
* outputs:
|
|
* zplprops values for the zplprops we attach to the master node object
|
|
* is_ci true if requested file system will be purely case-insensitive
|
|
*
|
|
* Determine the settings for utf8only, normalization and
|
|
* casesensitivity. Specific values may have been requested by the
|
|
* creator and/or we can inherit values from the parent dataset. If
|
|
* the file system is of too early a vintage, a creator can not
|
|
* request settings for these properties, even if the requested
|
|
* setting is the default value. We don't actually want to create dsl
|
|
* properties for these, so remove them from the source nvlist after
|
|
* processing.
|
|
*/
|
|
static int
|
|
zfs_fill_zplprops_impl(objset_t *os, uint64_t default_zplver,
|
|
boolean_t fuids_ok, nvlist_t *createprops, nvlist_t *zplprops,
|
|
boolean_t *is_ci)
|
|
{
|
|
uint64_t zplver = default_zplver;
|
|
uint64_t sense = ZFS_PROP_UNDEFINED;
|
|
uint64_t norm = ZFS_PROP_UNDEFINED;
|
|
uint64_t u8 = ZFS_PROP_UNDEFINED;
|
|
|
|
ASSERT(zplprops != NULL);
|
|
|
|
/*
|
|
* Pull out creator prop choices, if any.
|
|
*/
|
|
if (createprops) {
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
|
|
(void) nvlist_remove_all(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_NORMALIZE));
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
|
|
(void) nvlist_remove_all(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
|
|
(void) nvlist_lookup_uint64(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_CASE), &sense);
|
|
(void) nvlist_remove_all(createprops,
|
|
zfs_prop_to_name(ZFS_PROP_CASE));
|
|
}
|
|
|
|
/*
|
|
* If the zpl version requested is whacky or the file system
|
|
* or pool is version is too "young" to support normalization
|
|
* and the creator tried to set a value for one of the props,
|
|
* error out.
|
|
*/
|
|
if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
|
|
(zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
|
|
(zplver < ZPL_VERSION_NORMALIZATION &&
|
|
(norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
|
|
sense != ZFS_PROP_UNDEFINED)))
|
|
return (ENOTSUP);
|
|
|
|
/*
|
|
* Put the version in the zplprops
|
|
*/
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
|
|
|
|
if (norm == ZFS_PROP_UNDEFINED)
|
|
VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0);
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
|
|
|
|
/*
|
|
* If we're normalizing, names must always be valid UTF-8 strings.
|
|
*/
|
|
if (norm)
|
|
u8 = 1;
|
|
if (u8 == ZFS_PROP_UNDEFINED)
|
|
VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0);
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
|
|
|
|
if (sense == ZFS_PROP_UNDEFINED)
|
|
VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0);
|
|
VERIFY(nvlist_add_uint64(zplprops,
|
|
zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
|
|
|
|
if (is_ci)
|
|
*is_ci = (sense == ZFS_CASE_INSENSITIVE);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
|
|
nvlist_t *zplprops, boolean_t *is_ci)
|
|
{
|
|
boolean_t fuids_ok = B_TRUE;
|
|
uint64_t zplver = ZPL_VERSION;
|
|
objset_t *os = NULL;
|
|
char parentname[MAXNAMELEN];
|
|
char *cp;
|
|
int error;
|
|
|
|
(void) strlcpy(parentname, dataset, sizeof (parentname));
|
|
cp = strrchr(parentname, '/');
|
|
ASSERT(cp != NULL);
|
|
cp[0] = '\0';
|
|
|
|
if (zfs_earlier_version(dataset, SPA_VERSION_FUID)) {
|
|
zplver = ZPL_VERSION_FUID - 1;
|
|
fuids_ok = B_FALSE;
|
|
}
|
|
|
|
/*
|
|
* Open parent object set so we can inherit zplprop values.
|
|
*/
|
|
if ((error = dmu_objset_open(parentname, DMU_OST_ANY,
|
|
DS_MODE_USER | DS_MODE_READONLY, &os)) != 0)
|
|
return (error);
|
|
|
|
error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, createprops,
|
|
zplprops, is_ci);
|
|
dmu_objset_close(os);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
|
|
nvlist_t *zplprops, boolean_t *is_ci)
|
|
{
|
|
boolean_t fuids_ok = B_TRUE;
|
|
uint64_t zplver = ZPL_VERSION;
|
|
int error;
|
|
|
|
if (spa_vers < SPA_VERSION_FUID) {
|
|
zplver = ZPL_VERSION_FUID - 1;
|
|
fuids_ok = B_FALSE;
|
|
}
|
|
|
|
error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, createprops,
|
|
zplprops, is_ci);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_objset_type type of objset to create (fs vs zvol)
|
|
* zc_name name of new objset
|
|
* zc_value name of snapshot to clone from (may be empty)
|
|
* zc_nvlist_src{_size} nvlist of properties to apply
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_create(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *clone;
|
|
int error = 0;
|
|
zfs_creat_t zct;
|
|
nvlist_t *nvprops = NULL;
|
|
void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
|
|
dmu_objset_type_t type = zc->zc_objset_type;
|
|
|
|
switch (type) {
|
|
|
|
case DMU_OST_ZFS:
|
|
cbfunc = zfs_create_cb;
|
|
break;
|
|
|
|
#ifdef HAVE_ZVOL
|
|
case DMU_OST_ZVOL:
|
|
cbfunc = zvol_create_cb;
|
|
break;
|
|
#endif /* HAVE_ZVOL */
|
|
|
|
default:
|
|
cbfunc = NULL;
|
|
break;
|
|
}
|
|
if (strchr(zc->zc_name, '@') ||
|
|
strchr(zc->zc_name, '%'))
|
|
return (EINVAL);
|
|
|
|
if (zc->zc_nvlist_src != 0 &&
|
|
(error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&nvprops)) != 0)
|
|
return (error);
|
|
|
|
zct.zct_zplprops = NULL;
|
|
zct.zct_props = nvprops;
|
|
|
|
if (zc->zc_value[0] != '\0') {
|
|
/*
|
|
* We're creating a clone of an existing snapshot.
|
|
*/
|
|
zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
|
|
if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) {
|
|
nvlist_free(nvprops);
|
|
return (EINVAL);
|
|
}
|
|
|
|
error = dmu_objset_open(zc->zc_value, type,
|
|
DS_MODE_USER | DS_MODE_READONLY, &clone);
|
|
if (error) {
|
|
nvlist_free(nvprops);
|
|
return (error);
|
|
}
|
|
|
|
error = dmu_objset_create(zc->zc_name, type, clone, 0,
|
|
NULL, NULL);
|
|
if (error) {
|
|
dmu_objset_close(clone);
|
|
nvlist_free(nvprops);
|
|
return (error);
|
|
}
|
|
dmu_objset_close(clone);
|
|
} else {
|
|
boolean_t is_insensitive = B_FALSE;
|
|
|
|
if (cbfunc == NULL) {
|
|
nvlist_free(nvprops);
|
|
return (EINVAL);
|
|
}
|
|
|
|
#ifdef HAVE_ZVOL
|
|
if (type == DMU_OST_ZVOL) {
|
|
uint64_t volsize, volblocksize;
|
|
|
|
if (nvprops == NULL ||
|
|
nvlist_lookup_uint64(nvprops,
|
|
zfs_prop_to_name(ZFS_PROP_VOLSIZE),
|
|
&volsize) != 0) {
|
|
nvlist_free(nvprops);
|
|
return (EINVAL);
|
|
}
|
|
|
|
if ((error = nvlist_lookup_uint64(nvprops,
|
|
zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
|
|
&volblocksize)) != 0 && error != ENOENT) {
|
|
nvlist_free(nvprops);
|
|
return (EINVAL);
|
|
}
|
|
|
|
if (error != 0)
|
|
volblocksize = zfs_prop_default_numeric(
|
|
ZFS_PROP_VOLBLOCKSIZE);
|
|
|
|
if ((error = zvol_check_volblocksize(
|
|
volblocksize)) != 0 ||
|
|
(error = zvol_check_volsize(volsize,
|
|
volblocksize)) != 0) {
|
|
nvlist_free(nvprops);
|
|
return (error);
|
|
}
|
|
} else
|
|
#endif /* HAVE_ZVOL */
|
|
if (type == DMU_OST_ZFS) {
|
|
int error;
|
|
|
|
/*
|
|
* We have to have normalization and
|
|
* case-folding flags correct when we do the
|
|
* file system creation, so go figure them out
|
|
* now.
|
|
*/
|
|
VERIFY(nvlist_alloc(&zct.zct_zplprops,
|
|
NV_UNIQUE_NAME, KM_SLEEP) == 0);
|
|
error = zfs_fill_zplprops(zc->zc_name, nvprops,
|
|
zct.zct_zplprops, &is_insensitive);
|
|
if (error != 0) {
|
|
nvlist_free(nvprops);
|
|
nvlist_free(zct.zct_zplprops);
|
|
return (error);
|
|
}
|
|
}
|
|
error = dmu_objset_create(zc->zc_name, type, NULL,
|
|
is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
|
|
nvlist_free(zct.zct_zplprops);
|
|
}
|
|
|
|
/*
|
|
* It would be nice to do this atomically.
|
|
*/
|
|
if (error == 0) {
|
|
if ((error = zfs_set_prop_nvlist(zc->zc_name, nvprops)) != 0)
|
|
(void) dmu_objset_destroy(zc->zc_name);
|
|
}
|
|
nvlist_free(nvprops);
|
|
return (error);
|
|
}
|
|
|
|
struct snap_prop_arg {
|
|
nvlist_t *nvprops;
|
|
const char *snapname;
|
|
};
|
|
|
|
static int
|
|
set_snap_props(char *name, void *arg)
|
|
{
|
|
struct snap_prop_arg *snpa = arg;
|
|
int len = strlen(name) + strlen(snpa->snapname) + 2;
|
|
char *buf = kmem_alloc(len, KM_SLEEP);
|
|
int err;
|
|
|
|
(void) snprintf(buf, len, "%s@%s", name, snpa->snapname);
|
|
err = zfs_set_prop_nvlist(buf, snpa->nvprops);
|
|
if (err)
|
|
(void) dmu_objset_destroy(buf);
|
|
kmem_free(buf, len);
|
|
return (err);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value short name of snapshot
|
|
* zc_cookie recursive flag
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_snapshot(zfs_cmd_t *zc)
|
|
{
|
|
nvlist_t *nvprops = NULL;
|
|
int error;
|
|
boolean_t recursive = zc->zc_cookie;
|
|
|
|
if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
|
|
return (EINVAL);
|
|
|
|
if (zc->zc_nvlist_src != 0 &&
|
|
(error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&nvprops)) != 0)
|
|
return (error);
|
|
|
|
error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, recursive);
|
|
|
|
/*
|
|
* It would be nice to do this atomically.
|
|
*/
|
|
if (error == 0) {
|
|
struct snap_prop_arg snpa;
|
|
snpa.nvprops = nvprops;
|
|
snpa.snapname = zc->zc_value;
|
|
if (recursive) {
|
|
error = dmu_objset_find(zc->zc_name,
|
|
set_snap_props, &snpa, DS_FIND_CHILDREN);
|
|
if (error) {
|
|
(void) dmu_snapshots_destroy(zc->zc_name,
|
|
zc->zc_value);
|
|
}
|
|
} else {
|
|
error = set_snap_props(zc->zc_name, &snpa);
|
|
}
|
|
}
|
|
nvlist_free(nvprops);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
zfs_unmount_snap(char *name, void *arg)
|
|
{
|
|
#ifdef HAVE_ZPL
|
|
vfs_t *vfsp = NULL;
|
|
|
|
if (arg) {
|
|
char *snapname = arg;
|
|
int len = strlen(name) + strlen(snapname) + 2;
|
|
char *buf = kmem_alloc(len, KM_SLEEP);
|
|
|
|
(void) strcpy(buf, name);
|
|
(void) strcat(buf, "@");
|
|
(void) strcat(buf, snapname);
|
|
vfsp = zfs_get_vfs(buf);
|
|
kmem_free(buf, len);
|
|
} else if (strchr(name, '@')) {
|
|
vfsp = zfs_get_vfs(name);
|
|
}
|
|
|
|
if (vfsp) {
|
|
/*
|
|
* Always force the unmount for snapshots.
|
|
*/
|
|
int flag = MS_FORCE;
|
|
int err;
|
|
|
|
if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) {
|
|
VFS_RELE(vfsp);
|
|
return (err);
|
|
}
|
|
VFS_RELE(vfsp);
|
|
if ((err = dounmount(vfsp, flag, kcred)) != 0)
|
|
return (err);
|
|
}
|
|
#endif /* HAVE_ZPL */
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value short name of snapshot
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_destroy_snaps(zfs_cmd_t *zc)
|
|
{
|
|
int err;
|
|
|
|
if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
|
|
return (EINVAL);
|
|
err = dmu_objset_find(zc->zc_name,
|
|
zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN);
|
|
if (err)
|
|
return (err);
|
|
return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value));
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of dataset to destroy
|
|
* zc_objset_type type of objset
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_destroy(zfs_cmd_t *zc)
|
|
{
|
|
if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) {
|
|
int err = zfs_unmount_snap(zc->zc_name, NULL);
|
|
if (err)
|
|
return (err);
|
|
}
|
|
|
|
return (dmu_objset_destroy(zc->zc_name));
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of dataset to rollback (to most recent snapshot)
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_rollback(zfs_cmd_t *zc)
|
|
{
|
|
#ifdef HAVE_ZPL
|
|
objset_t *os;
|
|
int error;
|
|
zfsvfs_t *zfsvfs = NULL;
|
|
|
|
/*
|
|
* Get the zfsvfs for the receiving objset. There
|
|
* won't be one if we're operating on a zvol, if the
|
|
* objset doesn't exist yet, or is not mounted.
|
|
*/
|
|
error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, DS_MODE_USER, &os);
|
|
if (error)
|
|
return (error);
|
|
|
|
if (dmu_objset_type(os) == DMU_OST_ZFS) {
|
|
mutex_enter(&os->os->os_user_ptr_lock);
|
|
zfsvfs = dmu_objset_get_user(os);
|
|
if (zfsvfs != NULL)
|
|
VFS_HOLD(zfsvfs->z_vfs);
|
|
mutex_exit(&os->os->os_user_ptr_lock);
|
|
}
|
|
|
|
if (zfsvfs != NULL) {
|
|
char *osname;
|
|
int mode;
|
|
|
|
osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
|
|
error = zfs_suspend_fs(zfsvfs, osname, &mode);
|
|
if (error == 0) {
|
|
int resume_err;
|
|
|
|
ASSERT(strcmp(osname, zc->zc_name) == 0);
|
|
error = dmu_objset_rollback(os);
|
|
resume_err = zfs_resume_fs(zfsvfs, osname, mode);
|
|
error = error ? error : resume_err;
|
|
} else {
|
|
dmu_objset_close(os);
|
|
}
|
|
kmem_free(osname, MAXNAMELEN);
|
|
VFS_RELE(zfsvfs->z_vfs);
|
|
} else {
|
|
error = dmu_objset_rollback(os);
|
|
}
|
|
/* Note, the dmu_objset_rollback() releases the objset for us. */
|
|
|
|
return (error);
|
|
#else
|
|
return (ENOTSUP);
|
|
#endif /* HAVE_ZPL */
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name old name of dataset
|
|
* zc_value new name of dataset
|
|
* zc_cookie recursive flag (only valid for snapshots)
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_rename(zfs_cmd_t *zc)
|
|
{
|
|
boolean_t recursive = zc->zc_cookie & 1;
|
|
|
|
zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
|
|
if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
|
|
strchr(zc->zc_value, '%'))
|
|
return (EINVAL);
|
|
|
|
/*
|
|
* Unmount snapshot unless we're doing a recursive rename,
|
|
* in which case the dataset code figures out which snapshots
|
|
* to unmount.
|
|
*/
|
|
if (!recursive && strchr(zc->zc_name, '@') != NULL &&
|
|
zc->zc_objset_type == DMU_OST_ZFS) {
|
|
int err = zfs_unmount_snap(zc->zc_name, NULL);
|
|
if (err)
|
|
return (err);
|
|
}
|
|
return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive));
|
|
}
|
|
|
|
static void
|
|
clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops)
|
|
{
|
|
zfs_cmd_t *zc;
|
|
nvpair_t *prop;
|
|
|
|
if (props == NULL)
|
|
return;
|
|
zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
|
|
(void) strcpy(zc->zc_name, dataset);
|
|
for (prop = nvlist_next_nvpair(props, NULL); prop;
|
|
prop = nvlist_next_nvpair(props, prop)) {
|
|
if (newprops != NULL &&
|
|
nvlist_exists(newprops, nvpair_name(prop)))
|
|
continue;
|
|
(void) strcpy(zc->zc_value, nvpair_name(prop));
|
|
if (zfs_secpolicy_inherit(zc, CRED()) == 0)
|
|
(void) zfs_ioc_inherit_prop(zc);
|
|
}
|
|
kmem_free(zc, sizeof (zfs_cmd_t));
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of containing filesystem
|
|
* zc_nvlist_src{_size} nvlist of properties to apply
|
|
* zc_value name of snapshot to create
|
|
* zc_string name of clone origin (if DRR_FLAG_CLONE)
|
|
* zc_cookie file descriptor to recv from
|
|
* zc_begin_record the BEGIN record of the stream (not byteswapped)
|
|
* zc_guid force flag
|
|
*
|
|
* outputs:
|
|
* zc_cookie number of bytes read
|
|
*/
|
|
static int
|
|
zfs_ioc_recv(zfs_cmd_t *zc)
|
|
{
|
|
file_t *fp;
|
|
#ifdef HAVE_ZPL
|
|
objset_t *os;
|
|
#endif /* HAVE_ZPL */
|
|
dmu_recv_cookie_t drc;
|
|
zfsvfs_t *zfsvfs = NULL;
|
|
boolean_t force = (boolean_t)zc->zc_guid;
|
|
int error, fd;
|
|
offset_t off;
|
|
nvlist_t *props = NULL;
|
|
nvlist_t *origprops = NULL;
|
|
objset_t *origin = NULL;
|
|
char *tosnap;
|
|
char tofs[ZFS_MAXNAMELEN];
|
|
|
|
if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
|
|
strchr(zc->zc_value, '@') == NULL ||
|
|
strchr(zc->zc_value, '%'))
|
|
return (EINVAL);
|
|
|
|
(void) strcpy(tofs, zc->zc_value);
|
|
tosnap = strchr(tofs, '@');
|
|
*tosnap = '\0';
|
|
tosnap++;
|
|
|
|
if (zc->zc_nvlist_src != 0 &&
|
|
(error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
|
|
&props)) != 0)
|
|
return (error);
|
|
|
|
fd = zc->zc_cookie;
|
|
fp = getf(fd);
|
|
if (fp == NULL) {
|
|
nvlist_free(props);
|
|
return (EBADF);
|
|
}
|
|
|
|
#ifdef HAVE_ZPL
|
|
if (dmu_objset_open(tofs, DMU_OST_ANY,
|
|
DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
|
|
/*
|
|
* Try to get the zfsvfs for the receiving objset.
|
|
* There won't be one if we're operating on a zvol,
|
|
* if the objset doesn't exist yet, or is not mounted.
|
|
*/
|
|
mutex_enter(&os->os->os_user_ptr_lock);
|
|
if (zfsvfs = dmu_objset_get_user(os)) {
|
|
if (!mutex_tryenter(&zfsvfs->z_online_recv_lock)) {
|
|
mutex_exit(&os->os->os_user_ptr_lock);
|
|
dmu_objset_close(os);
|
|
zfsvfs = NULL;
|
|
error = EBUSY;
|
|
goto out;
|
|
}
|
|
VFS_HOLD(zfsvfs->z_vfs);
|
|
}
|
|
mutex_exit(&os->os->os_user_ptr_lock);
|
|
|
|
/*
|
|
* If new properties are supplied, they are to completely
|
|
* replace the existing ones, so stash away the existing ones.
|
|
*/
|
|
if (props)
|
|
(void) dsl_prop_get_all(os, &origprops, TRUE);
|
|
|
|
dmu_objset_close(os);
|
|
}
|
|
#endif /* HAVE_ZPL */
|
|
|
|
if (zc->zc_string[0]) {
|
|
error = dmu_objset_open(zc->zc_string, DMU_OST_ANY,
|
|
DS_MODE_USER | DS_MODE_READONLY, &origin);
|
|
if (error)
|
|
goto out;
|
|
}
|
|
|
|
error = dmu_recv_begin(tofs, tosnap, &zc->zc_begin_record,
|
|
force, origin, zfsvfs != NULL, &drc);
|
|
if (origin)
|
|
dmu_objset_close(origin);
|
|
if (error)
|
|
goto out;
|
|
|
|
/*
|
|
* Reset properties. We do this before we receive the stream
|
|
* so that the properties are applied to the new data.
|
|
*/
|
|
if (props) {
|
|
clear_props(tofs, origprops, props);
|
|
/*
|
|
* XXX - Note, this is all-or-nothing; should be best-effort.
|
|
*/
|
|
(void) zfs_set_prop_nvlist(tofs, props);
|
|
}
|
|
|
|
off = fp->f_offset;
|
|
error = dmu_recv_stream(&drc, fp->f_vnode, &off);
|
|
|
|
if (error == 0 && zfsvfs) {
|
|
char *osname;
|
|
int mode;
|
|
|
|
/* online recv */
|
|
osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
|
|
error = zfs_suspend_fs(zfsvfs, osname, &mode);
|
|
if (error == 0) {
|
|
int resume_err;
|
|
|
|
error = dmu_recv_end(&drc);
|
|
resume_err = zfs_resume_fs(zfsvfs, osname, mode);
|
|
error = error ? error : resume_err;
|
|
} else {
|
|
dmu_recv_abort_cleanup(&drc);
|
|
}
|
|
kmem_free(osname, MAXNAMELEN);
|
|
} else if (error == 0) {
|
|
error = dmu_recv_end(&drc);
|
|
}
|
|
|
|
zc->zc_cookie = off - fp->f_offset;
|
|
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
|
|
fp->f_offset = off;
|
|
|
|
/*
|
|
* On error, restore the original props.
|
|
*/
|
|
if (error && props) {
|
|
clear_props(tofs, props, NULL);
|
|
(void) zfs_set_prop_nvlist(tofs, origprops);
|
|
}
|
|
out:
|
|
if (zfsvfs) {
|
|
mutex_exit(&zfsvfs->z_online_recv_lock);
|
|
#ifdef HAVE_ZPL
|
|
VFS_RELE(zfsvfs->z_vfs);
|
|
#endif /* HAVE_ZPL */
|
|
}
|
|
nvlist_free(props);
|
|
nvlist_free(origprops);
|
|
releasef(fd);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of snapshot to send
|
|
* zc_value short name of incremental fromsnap (may be empty)
|
|
* zc_cookie file descriptor to send stream to
|
|
* zc_obj fromorigin flag (mutually exclusive with zc_value)
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_send(zfs_cmd_t *zc)
|
|
{
|
|
objset_t *fromsnap = NULL;
|
|
objset_t *tosnap;
|
|
file_t *fp;
|
|
int error;
|
|
offset_t off;
|
|
|
|
error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
|
|
DS_MODE_USER | DS_MODE_READONLY, &tosnap);
|
|
if (error)
|
|
return (error);
|
|
|
|
if (zc->zc_value[0] != '\0') {
|
|
char *buf;
|
|
char *cp;
|
|
|
|
buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
|
|
(void) strncpy(buf, zc->zc_name, MAXPATHLEN);
|
|
cp = strchr(buf, '@');
|
|
if (cp)
|
|
*(cp+1) = 0;
|
|
(void) strncat(buf, zc->zc_value, MAXPATHLEN);
|
|
error = dmu_objset_open(buf, DMU_OST_ANY,
|
|
DS_MODE_USER | DS_MODE_READONLY, &fromsnap);
|
|
kmem_free(buf, MAXPATHLEN);
|
|
if (error) {
|
|
dmu_objset_close(tosnap);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
fp = getf(zc->zc_cookie);
|
|
if (fp == NULL) {
|
|
dmu_objset_close(tosnap);
|
|
if (fromsnap)
|
|
dmu_objset_close(fromsnap);
|
|
return (EBADF);
|
|
}
|
|
|
|
off = fp->f_offset;
|
|
error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off);
|
|
|
|
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
|
|
fp->f_offset = off;
|
|
releasef(zc->zc_cookie);
|
|
if (fromsnap)
|
|
dmu_objset_close(fromsnap);
|
|
dmu_objset_close(tosnap);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_inject_fault(zfs_cmd_t *zc)
|
|
{
|
|
int id, error;
|
|
|
|
error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
|
|
&zc->zc_inject_record);
|
|
|
|
if (error == 0)
|
|
zc->zc_guid = (uint64_t)id;
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_clear_fault(zfs_cmd_t *zc)
|
|
{
|
|
return (zio_clear_fault((int)zc->zc_guid));
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_inject_list_next(zfs_cmd_t *zc)
|
|
{
|
|
int id = (int)zc->zc_guid;
|
|
int error;
|
|
|
|
error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
|
|
&zc->zc_inject_record);
|
|
|
|
zc->zc_guid = id;
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_error_log(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
int error;
|
|
size_t count = (size_t)zc->zc_nvlist_dst_size;
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
|
|
&count);
|
|
if (error == 0)
|
|
zc->zc_nvlist_dst_size = count;
|
|
else
|
|
zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_ioc_clear(zfs_cmd_t *zc)
|
|
{
|
|
spa_t *spa;
|
|
vdev_t *vd;
|
|
int error;
|
|
|
|
/*
|
|
* On zpool clear we also fix up missing slogs
|
|
*/
|
|
mutex_enter(&spa_namespace_lock);
|
|
spa = spa_lookup(zc->zc_name);
|
|
if (spa == NULL) {
|
|
mutex_exit(&spa_namespace_lock);
|
|
return (EIO);
|
|
}
|
|
if (spa->spa_log_state == SPA_LOG_MISSING) {
|
|
/* we need to let spa_open/spa_load clear the chains */
|
|
spa->spa_log_state = SPA_LOG_CLEAR;
|
|
}
|
|
mutex_exit(&spa_namespace_lock);
|
|
|
|
if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
|
|
return (error);
|
|
|
|
spa_vdev_state_enter(spa);
|
|
|
|
if (zc->zc_guid == 0) {
|
|
vd = NULL;
|
|
} else {
|
|
vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
|
|
if (vd == NULL) {
|
|
(void) spa_vdev_state_exit(spa, NULL, ENODEV);
|
|
spa_close(spa, FTAG);
|
|
return (ENODEV);
|
|
}
|
|
}
|
|
|
|
vdev_clear(spa, vd);
|
|
|
|
(void) spa_vdev_state_exit(spa, NULL, 0);
|
|
|
|
/*
|
|
* Resume any suspended I/Os.
|
|
*/
|
|
zio_resume(spa);
|
|
|
|
spa_close(spa, FTAG);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* inputs:
|
|
* zc_name name of filesystem
|
|
* zc_value name of origin snapshot
|
|
*
|
|
* outputs: none
|
|
*/
|
|
static int
|
|
zfs_ioc_promote(zfs_cmd_t *zc)
|
|
{
|
|
char *cp;
|
|
|
|
/*
|
|
* We don't need to unmount *all* the origin fs's snapshots, but
|
|
* it's easier.
|
|
*/
|
|
cp = strchr(zc->zc_value, '@');
|
|
if (cp)
|
|
*cp = '\0';
|
|
(void) dmu_objset_find(zc->zc_value,
|
|
zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS);
|
|
return (dsl_dataset_promote(zc->zc_name));
|
|
}
|
|
|
|
/*
|
|
* We don't want to have a hard dependency
|
|
* against some special symbols in sharefs
|
|
* nfs, and smbsrv. Determine them if needed when
|
|
* the first file system is shared.
|
|
* Neither sharefs, nfs or smbsrv are unloadable modules.
|
|
*/
|
|
#ifdef HAVE_ZPL
|
|
int (*znfsexport_fs)(void *arg);
|
|
int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t);
|
|
int (*zsmbexport_fs)(void *arg, boolean_t add_share);
|
|
|
|
int zfs_nfsshare_inited;
|
|
int zfs_smbshare_inited;
|
|
|
|
ddi_modhandle_t nfs_mod;
|
|
ddi_modhandle_t sharefs_mod;
|
|
ddi_modhandle_t smbsrv_mod;
|
|
kmutex_t zfs_share_lock;
|
|
|
|
static int
|
|
zfs_init_sharefs()
|
|
{
|
|
int error;
|
|
|
|
ASSERT(MUTEX_HELD(&zfs_share_lock));
|
|
/* Both NFS and SMB shares also require sharetab support. */
|
|
if (sharefs_mod == NULL && ((sharefs_mod =
|
|
ddi_modopen("fs/sharefs",
|
|
KRTLD_MODE_FIRST, &error)) == NULL)) {
|
|
return (ENOSYS);
|
|
}
|
|
if (zshare_fs == NULL && ((zshare_fs =
|
|
(int (*)(enum sharefs_sys_op, share_t *, uint32_t))
|
|
ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) {
|
|
return (ENOSYS);
|
|
}
|
|
return (0);
|
|
}
|
|
#endif /* HAVE_ZPL */
|
|
|
|
static int
|
|
zfs_ioc_share(zfs_cmd_t *zc)
|
|
{
|
|
#ifdef HAVE_ZPL
|
|
int error;
|
|
int opcode;
|
|
|
|
switch (zc->zc_share.z_sharetype) {
|
|
case ZFS_SHARE_NFS:
|
|
case ZFS_UNSHARE_NFS:
|
|
if (zfs_nfsshare_inited == 0) {
|
|
mutex_enter(&zfs_share_lock);
|
|
if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs",
|
|
KRTLD_MODE_FIRST, &error)) == NULL)) {
|
|
mutex_exit(&zfs_share_lock);
|
|
return (ENOSYS);
|
|
}
|
|
if (znfsexport_fs == NULL &&
|
|
((znfsexport_fs = (int (*)(void *))
|
|
ddi_modsym(nfs_mod,
|
|
"nfs_export", &error)) == NULL)) {
|
|
mutex_exit(&zfs_share_lock);
|
|
return (ENOSYS);
|
|
}
|
|
error = zfs_init_sharefs();
|
|
if (error) {
|
|
mutex_exit(&zfs_share_lock);
|
|
return (ENOSYS);
|
|
}
|
|
zfs_nfsshare_inited = 1;
|
|
mutex_exit(&zfs_share_lock);
|
|
}
|
|
break;
|
|
case ZFS_SHARE_SMB:
|
|
case ZFS_UNSHARE_SMB:
|
|
if (zfs_smbshare_inited == 0) {
|
|
mutex_enter(&zfs_share_lock);
|
|
if (smbsrv_mod == NULL && ((smbsrv_mod =
|
|
ddi_modopen("drv/smbsrv",
|
|
KRTLD_MODE_FIRST, &error)) == NULL)) {
|
|
mutex_exit(&zfs_share_lock);
|
|
return (ENOSYS);
|
|
}
|
|
if (zsmbexport_fs == NULL && ((zsmbexport_fs =
|
|
(int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod,
|
|
"smb_server_share", &error)) == NULL)) {
|
|
mutex_exit(&zfs_share_lock);
|
|
return (ENOSYS);
|
|
}
|
|
error = zfs_init_sharefs();
|
|
if (error) {
|
|
mutex_exit(&zfs_share_lock);
|
|
return (ENOSYS);
|
|
}
|
|
zfs_smbshare_inited = 1;
|
|
mutex_exit(&zfs_share_lock);
|
|
}
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
switch (zc->zc_share.z_sharetype) {
|
|
case ZFS_SHARE_NFS:
|
|
case ZFS_UNSHARE_NFS:
|
|
if (error =
|
|
znfsexport_fs((void *)
|
|
(uintptr_t)zc->zc_share.z_exportdata))
|
|
return (error);
|
|
break;
|
|
case ZFS_SHARE_SMB:
|
|
case ZFS_UNSHARE_SMB:
|
|
if (error = zsmbexport_fs((void *)
|
|
(uintptr_t)zc->zc_share.z_exportdata,
|
|
zc->zc_share.z_sharetype == ZFS_SHARE_SMB ?
|
|
B_TRUE : B_FALSE)) {
|
|
return (error);
|
|
}
|
|
break;
|
|
}
|
|
|
|
opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS ||
|
|
zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ?
|
|
SHAREFS_ADD : SHAREFS_REMOVE;
|
|
|
|
/*
|
|
* Add or remove share from sharetab
|
|
*/
|
|
error = zshare_fs(opcode,
|
|
(void *)(uintptr_t)zc->zc_share.z_sharedata,
|
|
zc->zc_share.z_sharemax);
|
|
|
|
return (error);
|
|
#else
|
|
return (ENOTSUP);
|
|
#endif /* HAVE_ZPL */
|
|
}
|
|
|
|
|
|
/*
|
|
* pool create, destroy, and export don't log the history as part of
|
|
* zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
|
|
* do the logging of those commands.
|
|
*/
|
|
static zfs_ioc_vec_t zfs_ioc_vec[] = {
|
|
{ zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_scrub, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_dataset_list_next, zfs_secpolicy_read,
|
|
DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_snapshot_list_next, zfs_secpolicy_read,
|
|
DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_create_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_remove_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_destroy_snaps, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_obj_to_path, zfs_secpolicy_config, NO_NAME, B_FALSE },
|
|
{ zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE },
|
|
{ zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE },
|
|
{ zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE },
|
|
{ zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_iscsi_perm_check, zfs_secpolicy_iscsi,
|
|
DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE },
|
|
{ zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE },
|
|
};
|
|
|
|
static int
|
|
zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
|
|
{
|
|
zfs_cmd_t *zc;
|
|
uint_t vec;
|
|
int error, rc;
|
|
|
|
#ifdef HAVE_ZVOL
|
|
if (getminor(dev) != 0)
|
|
return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp));
|
|
#endif
|
|
|
|
vec = cmd - ZFS_IOC;
|
|
ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip));
|
|
|
|
if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
|
|
return (EINVAL);
|
|
|
|
zc = vmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
|
|
|
|
error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t));
|
|
|
|
if (error == 0)
|
|
error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr);
|
|
|
|
/*
|
|
* Ensure that all pool/dataset names are valid before we pass down to
|
|
* the lower layers.
|
|
*/
|
|
if (error == 0) {
|
|
zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
|
|
switch (zfs_ioc_vec[vec].zvec_namecheck) {
|
|
case POOL_NAME:
|
|
if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
|
|
error = EINVAL;
|
|
break;
|
|
|
|
case DATASET_NAME:
|
|
if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
|
|
error = EINVAL;
|
|
break;
|
|
|
|
case NO_NAME:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (error == 0)
|
|
error = zfs_ioc_vec[vec].zvec_func(zc);
|
|
|
|
rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t));
|
|
if (error == 0) {
|
|
error = rc;
|
|
if (zfs_ioc_vec[vec].zvec_his_log == B_TRUE)
|
|
zfs_log_history(zc);
|
|
}
|
|
|
|
vmem_free(zc, sizeof (zfs_cmd_t));
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
|
|
{
|
|
if (cmd != DDI_ATTACH)
|
|
return (DDI_FAILURE);
|
|
|
|
if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0,
|
|
DDI_PSEUDO, 0) == DDI_FAILURE)
|
|
return (DDI_FAILURE);
|
|
|
|
zfs_dip = dip;
|
|
|
|
ddi_report_dev(dip);
|
|
|
|
return (DDI_SUCCESS);
|
|
}
|
|
|
|
static int
|
|
zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
|
|
{
|
|
if (spa_busy() || zfs_busy() || zvol_busy())
|
|
return (DDI_FAILURE);
|
|
|
|
if (cmd != DDI_DETACH)
|
|
return (DDI_FAILURE);
|
|
|
|
zfs_dip = NULL;
|
|
|
|
ddi_prop_remove_all(dip);
|
|
ddi_remove_minor_node(dip, NULL);
|
|
|
|
return (DDI_SUCCESS);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static int
|
|
zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
|
|
{
|
|
switch (infocmd) {
|
|
case DDI_INFO_DEVT2DEVINFO:
|
|
*result = zfs_dip;
|
|
return (DDI_SUCCESS);
|
|
|
|
case DDI_INFO_DEVT2INSTANCE:
|
|
*result = (void *)0;
|
|
return (DDI_SUCCESS);
|
|
}
|
|
|
|
return (DDI_FAILURE);
|
|
}
|
|
|
|
/*
|
|
* OK, so this is a little weird.
|
|
*
|
|
* /dev/zfs is the control node, i.e. minor 0.
|
|
* /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
|
|
*
|
|
* /dev/zfs has basically nothing to do except serve up ioctls,
|
|
* so most of the standard driver entry points are in zvol.c.
|
|
*/
|
|
static struct cb_ops zfs_cb_ops = {
|
|
#ifdef HAVE_ZVOL
|
|
zvol_open, /* open */
|
|
zvol_close, /* close */
|
|
zvol_strategy, /* strategy */
|
|
nodev, /* print */
|
|
zvol_dump, /* dump */
|
|
zvol_read, /* read */
|
|
zvol_write, /* write */
|
|
#else
|
|
nodev, /* open */
|
|
nodev, /* close */
|
|
nodev, /* strategy */
|
|
nodev, /* print */
|
|
nodev, /* dump */
|
|
nodev, /* read */
|
|
nodev, /* write */
|
|
#endif /* HAVE_ZVOL */
|
|
zfsdev_ioctl, /* ioctl */
|
|
nodev, /* devmap */
|
|
nodev, /* mmap */
|
|
nodev, /* segmap */
|
|
nochpoll, /* poll */
|
|
ddi_prop_op, /* prop_op */
|
|
NULL, /* streamtab */
|
|
D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */
|
|
CB_REV, /* version */
|
|
nodev, /* async read */
|
|
nodev, /* async write */
|
|
};
|
|
|
|
static struct dev_ops zfs_dev_ops = {
|
|
DEVO_REV, /* version */
|
|
0, /* refcnt */
|
|
zfs_info, /* info */
|
|
nulldev, /* identify */
|
|
nulldev, /* probe */
|
|
zfs_attach, /* attach */
|
|
zfs_detach, /* detach */
|
|
nodev, /* reset */
|
|
&zfs_cb_ops, /* driver operations */
|
|
NULL, /* no bus operations */
|
|
NULL, /* power */
|
|
ddi_quiesce_not_needed, /* quiesce */
|
|
};
|
|
|
|
static struct modldrv zfs_modldrv = {
|
|
#ifdef HAVE_SPL
|
|
NULL,
|
|
#else
|
|
&mod_driverops,
|
|
#endif /* HAVE_SPL */
|
|
"ZFS storage pool",
|
|
&zfs_dev_ops
|
|
};
|
|
|
|
static struct modlinkage modlinkage = {
|
|
MODREV_1,
|
|
#ifdef HAVE_ZPL
|
|
(void *)&zfs_modlfs,
|
|
#else
|
|
NULL,
|
|
#endif /* HAVE_ZPL */
|
|
(void *)&zfs_modldrv,
|
|
#ifdef HAVE_SPL
|
|
ZFS_MAJOR,
|
|
ZFS_MINORS,
|
|
#endif /* HAVE_SPL */
|
|
NULL
|
|
};
|
|
|
|
|
|
uint_t zfs_fsyncer_key;
|
|
extern uint_t rrw_tsd_key;
|
|
|
|
int
|
|
_init(void)
|
|
{
|
|
int error;
|
|
|
|
spa_init(FREAD | FWRITE);
|
|
zfs_init();
|
|
zvol_init();
|
|
|
|
if ((error = mod_install(&modlinkage)) != 0) {
|
|
zvol_fini();
|
|
zfs_fini();
|
|
spa_fini();
|
|
return (error);
|
|
}
|
|
|
|
error = ldi_ident_from_mod(&modlinkage, &zfs_li);
|
|
ASSERT(error == 0);
|
|
#ifdef HAVE_ZPL
|
|
tsd_create(&zfs_fsyncer_key, NULL);
|
|
tsd_create(&rrw_tsd_key, NULL);
|
|
|
|
mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
|
|
#endif /* HAVE_ZPL */
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
_fini(void)
|
|
{
|
|
int error;
|
|
|
|
if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
|
|
return (EBUSY);
|
|
|
|
if ((error = mod_remove(&modlinkage)) != 0)
|
|
return (error);
|
|
|
|
zvol_fini();
|
|
zfs_fini();
|
|
spa_fini();
|
|
#ifdef HAVE_ZPL
|
|
if (zfs_nfsshare_inited)
|
|
(void) ddi_modclose(nfs_mod);
|
|
if (zfs_smbshare_inited)
|
|
(void) ddi_modclose(smbsrv_mod);
|
|
if (zfs_nfsshare_inited || zfs_smbshare_inited)
|
|
(void) ddi_modclose(sharefs_mod);
|
|
|
|
mutex_destroy(&zfs_share_lock);
|
|
tsd_destroy(&zfs_fsyncer_key);
|
|
#endif /* HAVE_ZPL */
|
|
|
|
ldi_ident_release(zfs_li);
|
|
zfs_li = NULL;
|
|
|
|
return (error);
|
|
}
|
|
|
|
#ifdef HAVE_SPL
|
|
int
|
|
init(void)
|
|
{
|
|
int rc;
|
|
|
|
rc = _init();
|
|
if (!rc)
|
|
printk(KERN_INFO "ZFS: Loaded ZFS Filesystem v%s\n",
|
|
ZFS_META_VERSION);
|
|
|
|
return rc;
|
|
}
|
|
|
|
void
|
|
fini(void)
|
|
{
|
|
(void)_fini();
|
|
printk(KERN_INFO "ZFS: Unloaded ZFS Filesystem v%s\n",
|
|
ZFS_META_VERSION);
|
|
}
|
|
|
|
module_init(init);
|
|
module_exit(fini);
|
|
|
|
MODULE_AUTHOR("Sun Microsystems, Inc");
|
|
MODULE_DESCRIPTION("ZFS");
|
|
MODULE_LICENSE("CDDL");
|
|
#else
|
|
int
|
|
_info(struct modinfo *modinfop)
|
|
{
|
|
return (mod_info(&modlinkage, modinfop));
|
|
}
|
|
#endif /* HAVE_SPL */
|