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Diffstat (limited to 'cddl/contrib/opensolaris/cmd/zpool/zpool_vdev.c')
-rw-r--r--cddl/contrib/opensolaris/cmd/zpool/zpool_vdev.c1729
1 files changed, 0 insertions, 1729 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zpool/zpool_vdev.c b/cddl/contrib/opensolaris/cmd/zpool/zpool_vdev.c
deleted file mode 100644
index 43d66d2263e0..000000000000
--- a/cddl/contrib/opensolaris/cmd/zpool/zpool_vdev.c
+++ /dev/null
@@ -1,1729 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2013, 2018 by Delphix. All rights reserved.
- * Copyright (c) 2016, 2017 Intel Corporation.
- * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
- */
-
-/*
- * Functions to convert between a list of vdevs and an nvlist representing the
- * configuration. Each entry in the list can be one of:
- *
- * Device vdevs
- * disk=(path=..., devid=...)
- * file=(path=...)
- *
- * Group vdevs
- * raidz[1|2]=(...)
- * mirror=(...)
- *
- * Hot spares
- *
- * While the underlying implementation supports it, group vdevs cannot contain
- * other group vdevs. All userland verification of devices is contained within
- * this file. If successful, the nvlist returned can be passed directly to the
- * kernel; we've done as much verification as possible in userland.
- *
- * Hot spares are a special case, and passed down as an array of disk vdevs, at
- * the same level as the root of the vdev tree.
- *
- * The only function exported by this file is 'make_root_vdev'. The
- * function performs several passes:
- *
- * 1. Construct the vdev specification. Performs syntax validation and
- * makes sure each device is valid.
- * 2. Check for devices in use. Using libdiskmgt, makes sure that no
- * devices are also in use. Some can be overridden using the 'force'
- * flag, others cannot.
- * 3. Check for replication errors if the 'force' flag is not specified.
- * validates that the replication level is consistent across the
- * entire pool.
- * 4. Call libzfs to label any whole disks with an EFI label.
- */
-
-#include <assert.h>
-#include <devid.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <libintl.h>
-#include <libnvpair.h>
-#include <limits.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <paths.h>
-#include <sys/stat.h>
-#include <sys/disk.h>
-#include <sys/mntent.h>
-#include <libgeom.h>
-
-#include "zpool_util.h"
-
-#define BACKUP_SLICE "s2"
-
-/*
- * For any given vdev specification, we can have multiple errors. The
- * vdev_error() function keeps track of whether we have seen an error yet, and
- * prints out a header if its the first error we've seen.
- */
-boolean_t error_seen;
-boolean_t is_force;
-
-/*PRINTFLIKE1*/
-static void
-vdev_error(const char *fmt, ...)
-{
- va_list ap;
-
- if (!error_seen) {
- (void) fprintf(stderr, gettext("invalid vdev specification\n"));
- if (!is_force)
- (void) fprintf(stderr, gettext("use '-f' to override "
- "the following errors:\n"));
- else
- (void) fprintf(stderr, gettext("the following errors "
- "must be manually repaired:\n"));
- error_seen = B_TRUE;
- }
-
- va_start(ap, fmt);
- (void) vfprintf(stderr, fmt, ap);
- va_end(ap);
-}
-
-#ifdef illumos
-static void
-libdiskmgt_error(int error)
-{
- /*
- * ENXIO/ENODEV is a valid error message if the device doesn't live in
- * /dev/dsk. Don't bother printing an error message in this case.
- */
- if (error == ENXIO || error == ENODEV)
- return;
-
- (void) fprintf(stderr, gettext("warning: device in use checking "
- "failed: %s\n"), strerror(error));
-}
-
-/*
- * Validate a device, passing the bulk of the work off to libdiskmgt.
- */
-static int
-check_slice(const char *path, int force, boolean_t wholedisk, boolean_t isspare)
-{
- char *msg;
- int error = 0;
- dm_who_type_t who;
-
- if (force)
- who = DM_WHO_ZPOOL_FORCE;
- else if (isspare)
- who = DM_WHO_ZPOOL_SPARE;
- else
- who = DM_WHO_ZPOOL;
-
- if (dm_inuse((char *)path, &msg, who, &error) || error) {
- if (error != 0) {
- libdiskmgt_error(error);
- return (0);
- } else {
- vdev_error("%s", msg);
- free(msg);
- return (-1);
- }
- }
-
- /*
- * If we're given a whole disk, ignore overlapping slices since we're
- * about to label it anyway.
- */
- error = 0;
- if (!wholedisk && !force &&
- (dm_isoverlapping((char *)path, &msg, &error) || error)) {
- if (error == 0) {
- /* dm_isoverlapping returned -1 */
- vdev_error(gettext("%s overlaps with %s\n"), path, msg);
- free(msg);
- return (-1);
- } else if (error != ENODEV) {
- /* libdiskmgt's devcache only handles physical drives */
- libdiskmgt_error(error);
- return (0);
- }
- }
-
- return (0);
-}
-
-
-/*
- * Validate a whole disk. Iterate over all slices on the disk and make sure
- * that none is in use by calling check_slice().
- */
-static int
-check_disk(const char *name, dm_descriptor_t disk, int force, int isspare)
-{
- dm_descriptor_t *drive, *media, *slice;
- int err = 0;
- int i;
- int ret;
-
- /*
- * Get the drive associated with this disk. This should never fail,
- * because we already have an alias handle open for the device.
- */
- if ((drive = dm_get_associated_descriptors(disk, DM_DRIVE,
- &err)) == NULL || *drive == NULL) {
- if (err)
- libdiskmgt_error(err);
- return (0);
- }
-
- if ((media = dm_get_associated_descriptors(*drive, DM_MEDIA,
- &err)) == NULL) {
- dm_free_descriptors(drive);
- if (err)
- libdiskmgt_error(err);
- return (0);
- }
-
- dm_free_descriptors(drive);
-
- /*
- * It is possible that the user has specified a removable media drive,
- * and the media is not present.
- */
- if (*media == NULL) {
- dm_free_descriptors(media);
- vdev_error(gettext("'%s' has no media in drive\n"), name);
- return (-1);
- }
-
- if ((slice = dm_get_associated_descriptors(*media, DM_SLICE,
- &err)) == NULL) {
- dm_free_descriptors(media);
- if (err)
- libdiskmgt_error(err);
- return (0);
- }
-
- dm_free_descriptors(media);
-
- ret = 0;
-
- /*
- * Iterate over all slices and report any errors. We don't care about
- * overlapping slices because we are using the whole disk.
- */
- for (i = 0; slice[i] != NULL; i++) {
- char *name = dm_get_name(slice[i], &err);
-
- if (check_slice(name, force, B_TRUE, isspare) != 0)
- ret = -1;
-
- dm_free_name(name);
- }
-
- dm_free_descriptors(slice);
- return (ret);
-}
-
-/*
- * Validate a device.
- */
-static int
-check_device(const char *path, boolean_t force, boolean_t isspare)
-{
- dm_descriptor_t desc;
- int err;
- char *dev;
-
- /*
- * For whole disks, libdiskmgt does not include the leading dev path.
- */
- dev = strrchr(path, '/');
- assert(dev != NULL);
- dev++;
- if ((desc = dm_get_descriptor_by_name(DM_ALIAS, dev, &err)) != NULL) {
- err = check_disk(path, desc, force, isspare);
- dm_free_descriptor(desc);
- return (err);
- }
-
- return (check_slice(path, force, B_FALSE, isspare));
-}
-#endif /* illumos */
-
-/*
- * Check that a file is valid. All we can do in this case is check that it's
- * not in use by another pool, and not in use by swap.
- */
-static int
-check_file(const char *file, boolean_t force, boolean_t isspare)
-{
- char *name;
- int fd;
- int ret = 0;
- int err;
- pool_state_t state;
- boolean_t inuse;
-
-#ifdef illumos
- if (dm_inuse_swap(file, &err)) {
- if (err)
- libdiskmgt_error(err);
- else
- vdev_error(gettext("%s is currently used by swap. "
- "Please see swap(1M).\n"), file);
- return (-1);
- }
-#endif
-
- if ((fd = open(file, O_RDONLY)) < 0)
- return (0);
-
- if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) == 0 && inuse) {
- const char *desc;
-
- switch (state) {
- case POOL_STATE_ACTIVE:
- desc = gettext("active");
- break;
-
- case POOL_STATE_EXPORTED:
- desc = gettext("exported");
- break;
-
- case POOL_STATE_POTENTIALLY_ACTIVE:
- desc = gettext("potentially active");
- break;
-
- default:
- desc = gettext("unknown");
- break;
- }
-
- /*
- * Allow hot spares to be shared between pools.
- */
- if (state == POOL_STATE_SPARE && isspare)
- return (0);
-
- if (state == POOL_STATE_ACTIVE ||
- state == POOL_STATE_SPARE || !force) {
- switch (state) {
- case POOL_STATE_SPARE:
- vdev_error(gettext("%s is reserved as a hot "
- "spare for pool %s\n"), file, name);
- break;
- default:
- vdev_error(gettext("%s is part of %s pool "
- "'%s'\n"), file, desc, name);
- break;
- }
- ret = -1;
- }
-
- free(name);
- }
-
- (void) close(fd);
- return (ret);
-}
-
-static int
-check_device(const char *name, boolean_t force, boolean_t isspare)
-{
- char path[MAXPATHLEN];
-
- if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) != 0)
- snprintf(path, sizeof(path), "%s%s", _PATH_DEV, name);
- else
- strlcpy(path, name, sizeof(path));
-
- return (check_file(path, force, isspare));
-}
-
-/*
- * By "whole disk" we mean an entire physical disk (something we can
- * label, toggle the write cache on, etc.) as opposed to the full
- * capacity of a pseudo-device such as lofi or did. We act as if we
- * are labeling the disk, which should be a pretty good test of whether
- * it's a viable device or not. Returns B_TRUE if it is and B_FALSE if
- * it isn't.
- */
-static boolean_t
-is_whole_disk(const char *arg)
-{
-#ifdef illumos
- struct dk_gpt *label;
- int fd;
- char path[MAXPATHLEN];
-
- (void) snprintf(path, sizeof (path), "%s%s%s",
- ZFS_RDISK_ROOT, strrchr(arg, '/'), BACKUP_SLICE);
- if ((fd = open(path, O_RDWR | O_NDELAY)) < 0)
- return (B_FALSE);
- if (efi_alloc_and_init(fd, EFI_NUMPAR, &label) != 0) {
- (void) close(fd);
- return (B_FALSE);
- }
- efi_free(label);
- (void) close(fd);
- return (B_TRUE);
-#else
- int fd;
-
- fd = g_open(arg, 0);
- if (fd >= 0) {
- g_close(fd);
- return (B_TRUE);
- }
- return (B_FALSE);
-#endif
-}
-
-/*
- * Create a leaf vdev. Determine if this is a file or a device. If it's a
- * device, fill in the device id to make a complete nvlist. Valid forms for a
- * leaf vdev are:
- *
- * /dev/dsk/xxx Complete disk path
- * /xxx Full path to file
- * xxx Shorthand for /dev/dsk/xxx
- */
-static nvlist_t *
-make_leaf_vdev(const char *arg, uint64_t is_log)
-{
- char path[MAXPATHLEN];
- struct stat64 statbuf;
- nvlist_t *vdev = NULL;
- char *type = NULL;
- boolean_t wholedisk = B_FALSE;
-
- /*
- * Determine what type of vdev this is, and put the full path into
- * 'path'. We detect whether this is a device of file afterwards by
- * checking the st_mode of the file.
- */
- if (arg[0] == '/') {
- /*
- * Complete device or file path. Exact type is determined by
- * examining the file descriptor afterwards.
- */
- wholedisk = is_whole_disk(arg);
- if (!wholedisk && (stat64(arg, &statbuf) != 0)) {
- (void) fprintf(stderr,
- gettext("cannot open '%s': %s\n"),
- arg, strerror(errno));
- return (NULL);
- }
-
- (void) strlcpy(path, arg, sizeof (path));
- } else {
- /*
- * This may be a short path for a device, or it could be total
- * gibberish. Check to see if it's a known device in
- * /dev/dsk/. As part of this check, see if we've been given a
- * an entire disk (minus the slice number).
- */
- if (strncmp(arg, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
- strlcpy(path, arg, sizeof (path));
- else
- snprintf(path, sizeof (path), "%s%s", _PATH_DEV, arg);
- wholedisk = is_whole_disk(path);
- if (!wholedisk && (stat64(path, &statbuf) != 0)) {
- /*
- * If we got ENOENT, then the user gave us
- * gibberish, so try to direct them with a
- * reasonable error message. Otherwise,
- * regurgitate strerror() since it's the best we
- * can do.
- */
- if (errno == ENOENT) {
- (void) fprintf(stderr,
- gettext("cannot open '%s': no such "
- "GEOM provider\n"), arg);
- (void) fprintf(stderr,
- gettext("must be a full path or "
- "shorthand device name\n"));
- return (NULL);
- } else {
- (void) fprintf(stderr,
- gettext("cannot open '%s': %s\n"),
- path, strerror(errno));
- return (NULL);
- }
- }
- }
-
-#ifdef __FreeBSD__
- if (S_ISCHR(statbuf.st_mode)) {
- statbuf.st_mode &= ~S_IFCHR;
- statbuf.st_mode |= S_IFBLK;
- wholedisk = B_FALSE;
- }
-#endif
-
- /*
- * Determine whether this is a device or a file.
- */
- if (wholedisk || S_ISBLK(statbuf.st_mode)) {
- type = VDEV_TYPE_DISK;
- } else if (S_ISREG(statbuf.st_mode)) {
- type = VDEV_TYPE_FILE;
- } else {
- (void) fprintf(stderr, gettext("cannot use '%s': must be a "
- "GEOM provider or regular file\n"), path);
- return (NULL);
- }
-
- /*
- * Finally, we have the complete device or file, and we know that it is
- * acceptable to use. Construct the nvlist to describe this vdev. All
- * vdevs have a 'path' element, and devices also have a 'devid' element.
- */
- verify(nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) == 0);
- verify(nvlist_add_string(vdev, ZPOOL_CONFIG_PATH, path) == 0);
- verify(nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE, type) == 0);
- verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_LOG, is_log) == 0);
- if (is_log)
- verify(nvlist_add_string(vdev, ZPOOL_CONFIG_ALLOCATION_BIAS,
- VDEV_ALLOC_BIAS_LOG) == 0);
- if (strcmp(type, VDEV_TYPE_DISK) == 0)
- verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_WHOLE_DISK,
- (uint64_t)wholedisk) == 0);
-
-#ifdef have_devid
- /*
- * For a whole disk, defer getting its devid until after labeling it.
- */
- if (S_ISBLK(statbuf.st_mode) && !wholedisk) {
- /*
- * Get the devid for the device.
- */
- int fd;
- ddi_devid_t devid;
- char *minor = NULL, *devid_str = NULL;
-
- if ((fd = open(path, O_RDONLY)) < 0) {
- (void) fprintf(stderr, gettext("cannot open '%s': "
- "%s\n"), path, strerror(errno));
- nvlist_free(vdev);
- return (NULL);
- }
-
- if (devid_get(fd, &devid) == 0) {
- if (devid_get_minor_name(fd, &minor) == 0 &&
- (devid_str = devid_str_encode(devid, minor)) !=
- NULL) {
- verify(nvlist_add_string(vdev,
- ZPOOL_CONFIG_DEVID, devid_str) == 0);
- }
- if (devid_str != NULL)
- devid_str_free(devid_str);
- if (minor != NULL)
- devid_str_free(minor);
- devid_free(devid);
- }
-
- (void) close(fd);
- }
-#endif
-
- return (vdev);
-}
-
-/*
- * Go through and verify the replication level of the pool is consistent.
- * Performs the following checks:
- *
- * For the new spec, verifies that devices in mirrors and raidz are the
- * same size.
- *
- * If the current configuration already has inconsistent replication
- * levels, ignore any other potential problems in the new spec.
- *
- * Otherwise, make sure that the current spec (if there is one) and the new
- * spec have consistent replication levels.
- *
- * If there is no current spec (create), make sure new spec has at least
- * one general purpose vdev.
- */
-typedef struct replication_level {
- char *zprl_type;
- uint64_t zprl_children;
- uint64_t zprl_parity;
-} replication_level_t;
-
-#define ZPOOL_FUZZ (16 * 1024 * 1024)
-
-static boolean_t
-is_raidz_mirror(replication_level_t *a, replication_level_t *b,
- replication_level_t **raidz, replication_level_t **mirror)
-{
- if (strcmp(a->zprl_type, "raidz") == 0 &&
- strcmp(b->zprl_type, "mirror") == 0) {
- *raidz = a;
- *mirror = b;
- return (B_TRUE);
- }
- return (B_FALSE);
-}
-
-/*
- * Given a list of toplevel vdevs, return the current replication level. If
- * the config is inconsistent, then NULL is returned. If 'fatal' is set, then
- * an error message will be displayed for each self-inconsistent vdev.
- */
-static replication_level_t *
-get_replication(nvlist_t *nvroot, boolean_t fatal)
-{
- nvlist_t **top;
- uint_t t, toplevels;
- nvlist_t **child;
- uint_t c, children;
- nvlist_t *nv;
- char *type;
- replication_level_t lastrep = {0};
- replication_level_t rep;
- replication_level_t *ret;
- replication_level_t *raidz, *mirror;
- boolean_t dontreport;
-
- ret = safe_malloc(sizeof (replication_level_t));
-
- verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
- &top, &toplevels) == 0);
-
- for (t = 0; t < toplevels; t++) {
- uint64_t is_log = B_FALSE;
-
- nv = top[t];
-
- /*
- * For separate logs we ignore the top level vdev replication
- * constraints.
- */
- (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
- if (is_log)
- continue;
-
- verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE,
- &type) == 0);
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
- &child, &children) != 0) {
- /*
- * This is a 'file' or 'disk' vdev.
- */
- rep.zprl_type = type;
- rep.zprl_children = 1;
- rep.zprl_parity = 0;
- } else {
- uint64_t vdev_size;
-
- /*
- * This is a mirror or RAID-Z vdev. Go through and make
- * sure the contents are all the same (files vs. disks),
- * keeping track of the number of elements in the
- * process.
- *
- * We also check that the size of each vdev (if it can
- * be determined) is the same.
- */
- rep.zprl_type = type;
- rep.zprl_children = 0;
-
- if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) {
- verify(nvlist_lookup_uint64(nv,
- ZPOOL_CONFIG_NPARITY,
- &rep.zprl_parity) == 0);
- assert(rep.zprl_parity != 0);
- } else {
- rep.zprl_parity = 0;
- }
-
- /*
- * The 'dontreport' variable indicates that we've
- * already reported an error for this spec, so don't
- * bother doing it again.
- */
- type = NULL;
- dontreport = 0;
- vdev_size = -1ULL;
- for (c = 0; c < children; c++) {
- boolean_t is_replacing, is_spare;
- nvlist_t *cnv = child[c];
- char *path;
- struct stat64 statbuf;
- uint64_t size = -1ULL;
- char *childtype;
- int fd, err;
-
- rep.zprl_children++;
-
- verify(nvlist_lookup_string(cnv,
- ZPOOL_CONFIG_TYPE, &childtype) == 0);
-
- /*
- * If this is a replacing or spare vdev, then
- * get the real first child of the vdev.
- */
- is_replacing = strcmp(childtype,
- VDEV_TYPE_REPLACING) == 0;
- is_spare = strcmp(childtype,
- VDEV_TYPE_SPARE) == 0;
- if (is_replacing || is_spare) {
- nvlist_t **rchild;
- uint_t rchildren;
-
- verify(nvlist_lookup_nvlist_array(cnv,
- ZPOOL_CONFIG_CHILDREN, &rchild,
- &rchildren) == 0);
- assert((is_replacing && rchildren == 2)
- || (is_spare && rchildren >= 2));
- cnv = rchild[0];
-
- verify(nvlist_lookup_string(cnv,
- ZPOOL_CONFIG_TYPE,
- &childtype) == 0);
- if (strcmp(childtype,
- VDEV_TYPE_SPARE) == 0) {
- /* We have a replacing vdev with
- * a spare child. Get the first
- * real child of the spare
- */
- verify(
- nvlist_lookup_nvlist_array(
- cnv,
- ZPOOL_CONFIG_CHILDREN,
- &rchild,
- &rchildren) == 0);
- assert(rchildren >= 2);
- cnv = rchild[0];
- }
- }
-
- verify(nvlist_lookup_string(cnv,
- ZPOOL_CONFIG_PATH, &path) == 0);
-
- /*
- * If we have a raidz/mirror that combines disks
- * with files, report it as an error.
- */
- if (!dontreport && type != NULL &&
- strcmp(type, childtype) != 0) {
- if (ret != NULL)
- free(ret);
- ret = NULL;
- if (fatal)
- vdev_error(gettext(
- "mismatched replication "
- "level: %s contains both "
- "files and devices\n"),
- rep.zprl_type);
- else
- return (NULL);
- dontreport = B_TRUE;
- }
-
- /*
- * According to stat(2), the value of 'st_size'
- * is undefined for block devices and character
- * devices. But there is no effective way to
- * determine the real size in userland.
- *
- * Instead, we'll take advantage of an
- * implementation detail of spec_size(). If the
- * device is currently open, then we (should)
- * return a valid size.
- *
- * If we still don't get a valid size (indicated
- * by a size of 0 or MAXOFFSET_T), then ignore
- * this device altogether.
- */
- if ((fd = open(path, O_RDONLY)) >= 0) {
- err = fstat64(fd, &statbuf);
- (void) close(fd);
- } else {
- err = stat64(path, &statbuf);
- }
-
- if (err != 0 ||
- statbuf.st_size == 0 ||
- statbuf.st_size == MAXOFFSET_T)
- continue;
-
- size = statbuf.st_size;
-
- /*
- * Also make sure that devices and
- * slices have a consistent size. If
- * they differ by a significant amount
- * (~16MB) then report an error.
- */
- if (!dontreport &&
- (vdev_size != -1ULL &&
- (labs(size - vdev_size) >
- ZPOOL_FUZZ))) {
- if (ret != NULL)
- free(ret);
- ret = NULL;
- if (fatal)
- vdev_error(gettext(
- "%s contains devices of "
- "different sizes\n"),
- rep.zprl_type);
- else
- return (NULL);
- dontreport = B_TRUE;
- }
-
- type = childtype;
- vdev_size = size;
- }
- }
-
- /*
- * At this point, we have the replication of the last toplevel
- * vdev in 'rep'. Compare it to 'lastrep' to see if it is
- * different.
- */
- if (lastrep.zprl_type != NULL) {
- if (is_raidz_mirror(&lastrep, &rep, &raidz, &mirror) ||
- is_raidz_mirror(&rep, &lastrep, &raidz, &mirror)) {
- /*
- * Accepted raidz and mirror when they can
- * handle the same number of disk failures.
- */
- if (raidz->zprl_parity !=
- mirror->zprl_children - 1) {
- if (ret != NULL)
- free(ret);
- ret = NULL;
- if (fatal)
- vdev_error(gettext(
- "mismatched replication "
- "level: "
- "%s and %s vdevs with "
- "different redundancy, "
- "%llu vs. %llu (%llu-way) "
- "are present\n"),
- raidz->zprl_type,
- mirror->zprl_type,
- raidz->zprl_parity,
- mirror->zprl_children - 1,
- mirror->zprl_children);
- else
- return (NULL);
- }
- } else if (strcmp(lastrep.zprl_type, rep.zprl_type) !=
- 0) {
- if (ret != NULL)
- free(ret);
- ret = NULL;
- if (fatal)
- vdev_error(gettext(
- "mismatched replication level: "
- "both %s and %s vdevs are "
- "present\n"),
- lastrep.zprl_type, rep.zprl_type);
- else
- return (NULL);
- } else if (lastrep.zprl_parity != rep.zprl_parity) {
- if (ret)
- free(ret);
- ret = NULL;
- if (fatal)
- vdev_error(gettext(
- "mismatched replication level: "
- "both %llu and %llu device parity "
- "%s vdevs are present\n"),
- lastrep.zprl_parity,
- rep.zprl_parity,
- rep.zprl_type);
- else
- return (NULL);
- } else if (lastrep.zprl_children != rep.zprl_children) {
- if (ret)
- free(ret);
- ret = NULL;
- if (fatal)
- vdev_error(gettext(
- "mismatched replication level: "
- "both %llu-way and %llu-way %s "
- "vdevs are present\n"),
- lastrep.zprl_children,
- rep.zprl_children,
- rep.zprl_type);
- else
- return (NULL);
- }
- }
- lastrep = rep;
- }
-
- if (ret != NULL)
- *ret = rep;
-
- return (ret);
-}
-
-/*
- * Check the replication level of the vdev spec against the current pool. Calls
- * get_replication() to make sure the new spec is self-consistent. If the pool
- * has a consistent replication level, then we ignore any errors. Otherwise,
- * report any difference between the two.
- */
-static int
-check_replication(nvlist_t *config, nvlist_t *newroot)
-{
- nvlist_t **child;
- uint_t children;
- replication_level_t *current = NULL, *new;
- replication_level_t *raidz, *mirror;
- int ret;
-
- /*
- * If we have a current pool configuration, check to see if it's
- * self-consistent. If not, simply return success.
- */
- if (config != NULL) {
- nvlist_t *nvroot;
-
- verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
- &nvroot) == 0);
- if ((current = get_replication(nvroot, B_FALSE)) == NULL)
- return (0);
- }
- /*
- * for spares there may be no children, and therefore no
- * replication level to check
- */
- if ((nvlist_lookup_nvlist_array(newroot, ZPOOL_CONFIG_CHILDREN,
- &child, &children) != 0) || (children == 0)) {
- free(current);
- return (0);
- }
-
- /*
- * If all we have is logs then there's no replication level to check.
- */
- if (num_logs(newroot) == children) {
- free(current);
- return (0);
- }
-
- /*
- * Get the replication level of the new vdev spec, reporting any
- * inconsistencies found.
- */
- if ((new = get_replication(newroot, B_TRUE)) == NULL) {
- free(current);
- return (-1);
- }
-
- /*
- * Check to see if the new vdev spec matches the replication level of
- * the current pool.
- */
- ret = 0;
- if (current != NULL) {
- if (is_raidz_mirror(current, new, &raidz, &mirror) ||
- is_raidz_mirror(new, current, &raidz, &mirror)) {
- if (raidz->zprl_parity != mirror->zprl_children - 1) {
- vdev_error(gettext(
- "mismatched replication level: pool and "
- "new vdev with different redundancy, %s "
- "and %s vdevs, %llu vs. %llu (%llu-way)\n"),
- raidz->zprl_type,
- mirror->zprl_type,
- raidz->zprl_parity,
- mirror->zprl_children - 1,
- mirror->zprl_children);
- ret = -1;
- }
- } else if (strcmp(current->zprl_type, new->zprl_type) != 0) {
- vdev_error(gettext(
- "mismatched replication level: pool uses %s "
- "and new vdev is %s\n"),
- current->zprl_type, new->zprl_type);
- ret = -1;
- } else if (current->zprl_parity != new->zprl_parity) {
- vdev_error(gettext(
- "mismatched replication level: pool uses %llu "
- "device parity and new vdev uses %llu\n"),
- current->zprl_parity, new->zprl_parity);
- ret = -1;
- } else if (current->zprl_children != new->zprl_children) {
- vdev_error(gettext(
- "mismatched replication level: pool uses %llu-way "
- "%s and new vdev uses %llu-way %s\n"),
- current->zprl_children, current->zprl_type,
- new->zprl_children, new->zprl_type);
- ret = -1;
- }
- }
-
- free(new);
- if (current != NULL)
- free(current);
-
- return (ret);
-}
-
-#ifdef illumos
-/*
- * Go through and find any whole disks in the vdev specification, labelling them
- * as appropriate. When constructing the vdev spec, we were unable to open this
- * device in order to provide a devid. Now that we have labelled the disk and
- * know the pool slice is valid, we can construct the devid now.
- *
- * If the disk was already labeled with an EFI label, we will have gotten the
- * devid already (because we were able to open the whole disk). Otherwise, we
- * need to get the devid after we label the disk.
- */
-static int
-make_disks(zpool_handle_t *zhp, nvlist_t *nv, zpool_boot_label_t boot_type,
- uint64_t boot_size)
-{
- nvlist_t **child;
- uint_t c, children;
- char *type, *path, *diskname;
- char buf[MAXPATHLEN];
- uint64_t wholedisk;
- int fd;
- int ret;
- int slice;
- ddi_devid_t devid;
- char *minor = NULL, *devid_str = NULL;
-
- verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
-
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
- &child, &children) != 0) {
-
- if (strcmp(type, VDEV_TYPE_DISK) != 0)
- return (0);
-
- /*
- * We have a disk device. Get the path to the device
- * and see if it's a whole disk by appending the backup
- * slice and stat()ing the device.
- */
- verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
-
- diskname = strrchr(path, '/');
- assert(diskname != NULL);
- diskname++;
-
- if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK,
- &wholedisk) != 0 || !wholedisk) {
- /*
- * This is not whole disk, return error if
- * boot partition creation was requested
- */
- if (boot_type == ZPOOL_CREATE_BOOT_LABEL) {
- (void) fprintf(stderr,
- gettext("creating boot partition is only "
- "supported on whole disk vdevs: %s\n"),
- diskname);
- return (-1);
- }
- return (0);
- }
-
- ret = zpool_label_disk(g_zfs, zhp, diskname, boot_type,
- boot_size, &slice);
- if (ret == -1)
- return (ret);
-
- /*
- * Fill in the devid, now that we've labeled the disk.
- */
- (void) snprintf(buf, sizeof (buf), "%ss%d", path, slice);
- if ((fd = open(buf, O_RDONLY)) < 0) {
- (void) fprintf(stderr,
- gettext("cannot open '%s': %s\n"),
- buf, strerror(errno));
- return (-1);
- }
-
- if (devid_get(fd, &devid) == 0) {
- if (devid_get_minor_name(fd, &minor) == 0 &&
- (devid_str = devid_str_encode(devid, minor)) !=
- NULL) {
- verify(nvlist_add_string(nv,
- ZPOOL_CONFIG_DEVID, devid_str) == 0);
- }
- if (devid_str != NULL)
- devid_str_free(devid_str);
- if (minor != NULL)
- devid_str_free(minor);
- devid_free(devid);
- }
-
- /*
- * Update the path to refer to the pool slice. The presence of
- * the 'whole_disk' field indicates to the CLI that we should
- * chop off the slice number when displaying the device in
- * future output.
- */
- verify(nvlist_add_string(nv, ZPOOL_CONFIG_PATH, buf) == 0);
-
- (void) close(fd);
-
- return (0);
- }
-
- /* illumos kernel does not support booting from multi-vdev pools. */
- if ((boot_type == ZPOOL_CREATE_BOOT_LABEL)) {
- if ((strcmp(type, VDEV_TYPE_ROOT) == 0) && children > 1) {
- (void) fprintf(stderr, gettext("boot pool "
- "can not have more than one vdev\n"));
- return (-1);
- }
- }
-
- for (c = 0; c < children; c++) {
- ret = make_disks(zhp, child[c], boot_type, boot_size);
- if (ret != 0)
- return (ret);
- }
-
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
- &child, &children) == 0)
- for (c = 0; c < children; c++) {
- ret = make_disks(zhp, child[c], boot_type, boot_size);
- if (ret != 0)
- return (ret);
- }
-
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
- &child, &children) == 0)
- for (c = 0; c < children; c++) {
- ret = make_disks(zhp, child[c], boot_type, boot_size);
- if (ret != 0)
- return (ret);
- }
-
- return (0);
-}
-#endif /* illumos */
-
-/*
- * Determine if the given path is a hot spare within the given configuration.
- */
-static boolean_t
-is_spare(nvlist_t *config, const char *path)
-{
- int fd;
- pool_state_t state;
- char *name = NULL;
- nvlist_t *label;
- uint64_t guid, spareguid;
- nvlist_t *nvroot;
- nvlist_t **spares;
- uint_t i, nspares;
- boolean_t inuse;
-
- if ((fd = open(path, O_RDONLY)) < 0)
- return (B_FALSE);
-
- if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) != 0 ||
- !inuse ||
- state != POOL_STATE_SPARE ||
- zpool_read_label(fd, &label) != 0) {
- free(name);
- (void) close(fd);
- return (B_FALSE);
- }
- free(name);
- (void) close(fd);
-
- verify(nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) == 0);
- nvlist_free(label);
-
- verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
- &nvroot) == 0);
- if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
- &spares, &nspares) == 0) {
- for (i = 0; i < nspares; i++) {
- verify(nvlist_lookup_uint64(spares[i],
- ZPOOL_CONFIG_GUID, &spareguid) == 0);
- if (spareguid == guid)
- return (B_TRUE);
- }
- }
-
- return (B_FALSE);
-}
-
-/*
- * Go through and find any devices that are in use. We rely on libdiskmgt for
- * the majority of this task.
- */
-static boolean_t
-is_device_in_use(nvlist_t *config, nvlist_t *nv, boolean_t force,
- boolean_t replacing, boolean_t isspare)
-{
- nvlist_t **child;
- uint_t c, children;
- char *type, *path;
- int ret = 0;
- char buf[MAXPATHLEN];
- uint64_t wholedisk;
- boolean_t anyinuse = B_FALSE;
-
- verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
-
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
- &child, &children) != 0) {
-
- verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
-
- /*
- * As a generic check, we look to see if this is a replace of a
- * hot spare within the same pool. If so, we allow it
- * regardless of what libdiskmgt or zpool_in_use() says.
- */
- if (replacing) {
-#ifdef illumos
- if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK,
- &wholedisk) == 0 && wholedisk)
- (void) snprintf(buf, sizeof (buf), "%ss0",
- path);
- else
-#endif
- (void) strlcpy(buf, path, sizeof (buf));
-
- if (is_spare(config, buf))
- return (B_FALSE);
- }
-
- if (strcmp(type, VDEV_TYPE_DISK) == 0)
- ret = check_device(path, force, isspare);
- else if (strcmp(type, VDEV_TYPE_FILE) == 0)
- ret = check_file(path, force, isspare);
-
- return (ret != 0);
- }
-
- for (c = 0; c < children; c++)
- if (is_device_in_use(config, child[c], force, replacing,
- B_FALSE))
- anyinuse = B_TRUE;
-
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
- &child, &children) == 0)
- for (c = 0; c < children; c++)
- if (is_device_in_use(config, child[c], force, replacing,
- B_TRUE))
- anyinuse = B_TRUE;
-
- if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
- &child, &children) == 0)
- for (c = 0; c < children; c++)
- if (is_device_in_use(config, child[c], force, replacing,
- B_FALSE))
- anyinuse = B_TRUE;
-
- return (anyinuse);
-}
-
-static const char *
-is_grouping(const char *type, int *mindev, int *maxdev)
-{
- if (strncmp(type, "raidz", 5) == 0) {
- const char *p = type + 5;
- char *end;
- long nparity;
-
- if (*p == '\0') {
- nparity = 1;
- } else if (*p == '0') {
- return (NULL); /* no zero prefixes allowed */
- } else {
- errno = 0;
- nparity = strtol(p, &end, 10);
- if (errno != 0 || nparity < 1 || nparity >= 255 ||
- *end != '\0')
- return (NULL);
- }
-
- if (mindev != NULL)
- *mindev = nparity + 1;
- if (maxdev != NULL)
- *maxdev = 255;
- return (VDEV_TYPE_RAIDZ);
- }
-
- if (maxdev != NULL)
- *maxdev = INT_MAX;
-
- if (strcmp(type, "mirror") == 0) {
- if (mindev != NULL)
- *mindev = 2;
- return (VDEV_TYPE_MIRROR);
- }
-
- if (strcmp(type, "spare") == 0) {
- if (mindev != NULL)
- *mindev = 1;
- return (VDEV_TYPE_SPARE);
- }
-
- if (strcmp(type, "log") == 0) {
- if (mindev != NULL)
- *mindev = 1;
- return (VDEV_TYPE_LOG);
- }
-
- if (strcmp(type, VDEV_ALLOC_BIAS_SPECIAL) == 0 ||
- strcmp(type, VDEV_ALLOC_BIAS_DEDUP) == 0) {
- if (mindev != NULL)
- *mindev = 1;
- return (type);
- }
-
- if (strcmp(type, "cache") == 0) {
- if (mindev != NULL)
- *mindev = 1;
- return (VDEV_TYPE_L2CACHE);
- }
-
- return (NULL);
-}
-
-/*
- * Construct a syntactically valid vdev specification,
- * and ensure that all devices and files exist and can be opened.
- * Note: we don't bother freeing anything in the error paths
- * because the program is just going to exit anyway.
- */
-nvlist_t *
-construct_spec(int argc, char **argv)
-{
- nvlist_t *nvroot, *nv, **top, **spares, **l2cache;
- int t, toplevels, mindev, maxdev, nspares, nlogs, nl2cache;
- const char *type;
- uint64_t is_log, is_special, is_dedup;
- boolean_t seen_logs;
-
- top = NULL;
- toplevels = 0;
- spares = NULL;
- l2cache = NULL;
- nspares = 0;
- nlogs = 0;
- nl2cache = 0;
- is_log = is_special = is_dedup = B_FALSE;
- seen_logs = B_FALSE;
-
- while (argc > 0) {
- nv = NULL;
-
- /*
- * If it's a mirror or raidz, the subsequent arguments are
- * its leaves -- until we encounter the next mirror or raidz.
- */
- if ((type = is_grouping(argv[0], &mindev, &maxdev)) != NULL) {
- nvlist_t **child = NULL;
- int c, children = 0;
-
- if (strcmp(type, VDEV_TYPE_SPARE) == 0) {
- if (spares != NULL) {
- (void) fprintf(stderr,
- gettext("invalid vdev "
- "specification: 'spare' can be "
- "specified only once\n"));
- return (NULL);
- }
- is_log = is_special = is_dedup = B_FALSE;
- }
-
- if (strcmp(type, VDEV_TYPE_LOG) == 0) {
- if (seen_logs) {
- (void) fprintf(stderr,
- gettext("invalid vdev "
- "specification: 'log' can be "
- "specified only once\n"));
- return (NULL);
- }
- seen_logs = B_TRUE;
- is_log = B_TRUE;
- is_special = B_FALSE;
- is_dedup = B_FALSE;
- argc--;
- argv++;
- /*
- * A log is not a real grouping device.
- * We just set is_log and continue.
- */
- continue;
- }
-
- if (strcmp(type, VDEV_ALLOC_BIAS_SPECIAL) == 0) {
- is_special = B_TRUE;
- is_log = B_FALSE;
- is_dedup = B_FALSE;
- argc--;
- argv++;
- continue;
- }
-
- if (strcmp(type, VDEV_ALLOC_BIAS_DEDUP) == 0) {
- is_dedup = B_TRUE;
- is_log = B_FALSE;
- is_special = B_FALSE;
- argc--;
- argv++;
- continue;
- }
-
- if (strcmp(type, VDEV_TYPE_L2CACHE) == 0) {
- if (l2cache != NULL) {
- (void) fprintf(stderr,
- gettext("invalid vdev "
- "specification: 'cache' can be "
- "specified only once\n"));
- return (NULL);
- }
- is_log = is_special = is_dedup = B_FALSE;
- }
-
- if (is_log || is_special || is_dedup) {
- if (strcmp(type, VDEV_TYPE_MIRROR) != 0) {
- (void) fprintf(stderr,
- gettext("invalid vdev "
- "specification: unsupported '%s' "
- "device: %s\n"), is_log ? "log" :
- "special", type);
- return (NULL);
- }
- nlogs++;
- }
-
- for (c = 1; c < argc; c++) {
- if (is_grouping(argv[c], NULL, NULL) != NULL)
- break;
- children++;
- child = realloc(child,
- children * sizeof (nvlist_t *));
- if (child == NULL)
- zpool_no_memory();
- if ((nv = make_leaf_vdev(argv[c], B_FALSE))
- == NULL)
- return (NULL);
- child[children - 1] = nv;
- }
-
- if (children < mindev) {
- (void) fprintf(stderr, gettext("invalid vdev "
- "specification: %s requires at least %d "
- "devices\n"), argv[0], mindev);
- return (NULL);
- }
-
- if (children > maxdev) {
- (void) fprintf(stderr, gettext("invalid vdev "
- "specification: %s supports no more than "
- "%d devices\n"), argv[0], maxdev);
- return (NULL);
- }
-
- argc -= c;
- argv += c;
-
- if (strcmp(type, VDEV_TYPE_SPARE) == 0) {
- spares = child;
- nspares = children;
- continue;
- } else if (strcmp(type, VDEV_TYPE_L2CACHE) == 0) {
- l2cache = child;
- nl2cache = children;
- continue;
- } else {
- /* create a top-level vdev with children */
- verify(nvlist_alloc(&nv, NV_UNIQUE_NAME,
- 0) == 0);
- verify(nvlist_add_string(nv, ZPOOL_CONFIG_TYPE,
- type) == 0);
- verify(nvlist_add_uint64(nv,
- ZPOOL_CONFIG_IS_LOG, is_log) == 0);
- if (is_log)
- verify(nvlist_add_string(nv,
- ZPOOL_CONFIG_ALLOCATION_BIAS,
- VDEV_ALLOC_BIAS_LOG) == 0);
- if (is_special) {
- verify(nvlist_add_string(nv,
- ZPOOL_CONFIG_ALLOCATION_BIAS,
- VDEV_ALLOC_BIAS_SPECIAL) == 0);
- }
- if (is_dedup) {
- verify(nvlist_add_string(nv,
- ZPOOL_CONFIG_ALLOCATION_BIAS,
- VDEV_ALLOC_BIAS_DEDUP) == 0);
- }
- if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) {
- verify(nvlist_add_uint64(nv,
- ZPOOL_CONFIG_NPARITY,
- mindev - 1) == 0);
- }
- verify(nvlist_add_nvlist_array(nv,
- ZPOOL_CONFIG_CHILDREN, child,
- children) == 0);
-
- for (c = 0; c < children; c++)
- nvlist_free(child[c]);
- free(child);
- }
- } else {
- /*
- * We have a device. Pass off to make_leaf_vdev() to
- * construct the appropriate nvlist describing the vdev.
- */
- if ((nv = make_leaf_vdev(argv[0], is_log)) == NULL)
- return (NULL);
- if (is_log)
- nlogs++;
- if (is_special) {
- verify(nvlist_add_string(nv,
- ZPOOL_CONFIG_ALLOCATION_BIAS,
- VDEV_ALLOC_BIAS_SPECIAL) == 0);
- }
- if (is_dedup) {
- verify(nvlist_add_string(nv,
- ZPOOL_CONFIG_ALLOCATION_BIAS,
- VDEV_ALLOC_BIAS_DEDUP) == 0);
- }
- argc--;
- argv++;
- }
-
- toplevels++;
- top = realloc(top, toplevels * sizeof (nvlist_t *));
- if (top == NULL)
- zpool_no_memory();
- top[toplevels - 1] = nv;
- }
-
- if (toplevels == 0 && nspares == 0 && nl2cache == 0) {
- (void) fprintf(stderr, gettext("invalid vdev "
- "specification: at least one toplevel vdev must be "
- "specified\n"));
- return (NULL);
- }
-
- if (seen_logs && nlogs == 0) {
- (void) fprintf(stderr, gettext("invalid vdev specification: "
- "log requires at least 1 device\n"));
- return (NULL);
- }
-
- /*
- * Finally, create nvroot and add all top-level vdevs to it.
- */
- verify(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) == 0);
- verify(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE,
- VDEV_TYPE_ROOT) == 0);
- verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
- top, toplevels) == 0);
- if (nspares != 0)
- verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
- spares, nspares) == 0);
- if (nl2cache != 0)
- verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
- l2cache, nl2cache) == 0);
-
- for (t = 0; t < toplevels; t++)
- nvlist_free(top[t]);
- for (t = 0; t < nspares; t++)
- nvlist_free(spares[t]);
- for (t = 0; t < nl2cache; t++)
- nvlist_free(l2cache[t]);
- if (spares)
- free(spares);
- if (l2cache)
- free(l2cache);
- free(top);
-
- return (nvroot);
-}
-
-nvlist_t *
-split_mirror_vdev(zpool_handle_t *zhp, char *newname, nvlist_t *props,
- splitflags_t flags, int argc, char **argv)
-{
- nvlist_t *newroot = NULL, **child;
- uint_t c, children;
-#ifdef illumos
- zpool_boot_label_t boot_type;
-#endif
-
- if (argc > 0) {
- if ((newroot = construct_spec(argc, argv)) == NULL) {
- (void) fprintf(stderr, gettext("Unable to build a "
- "pool from the specified devices\n"));
- return (NULL);
- }
-
-#ifdef illumos
- if (zpool_is_bootable(zhp))
- boot_type = ZPOOL_COPY_BOOT_LABEL;
- else
- boot_type = ZPOOL_NO_BOOT_LABEL;
-
- if (!flags.dryrun &&
- make_disks(zhp, newroot, boot_type, 0) != 0) {
- nvlist_free(newroot);
- return (NULL);
- }
-#endif
-
- /* avoid any tricks in the spec */
- verify(nvlist_lookup_nvlist_array(newroot,
- ZPOOL_CONFIG_CHILDREN, &child, &children) == 0);
- for (c = 0; c < children; c++) {
- char *path;
- const char *type;
- int min, max;
-
- verify(nvlist_lookup_string(child[c],
- ZPOOL_CONFIG_PATH, &path) == 0);
- if ((type = is_grouping(path, &min, &max)) != NULL) {
- (void) fprintf(stderr, gettext("Cannot use "
- "'%s' as a device for splitting\n"), type);
- nvlist_free(newroot);
- return (NULL);
- }
- }
- }
-
- if (zpool_vdev_split(zhp, newname, &newroot, props, flags) != 0) {
- nvlist_free(newroot);
- return (NULL);
- }
-
- return (newroot);
-}
-
-static int
-num_normal_vdevs(nvlist_t *nvroot)
-{
- nvlist_t **top;
- uint_t t, toplevels, normal = 0;
-
- verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
- &top, &toplevels) == 0);
-
- for (t = 0; t < toplevels; t++) {
- uint64_t log = B_FALSE;
-
- (void) nvlist_lookup_uint64(top[t], ZPOOL_CONFIG_IS_LOG, &log);
- if (log)
- continue;
- if (nvlist_exists(top[t], ZPOOL_CONFIG_ALLOCATION_BIAS))
- continue;
-
- normal++;
- }
-
- return (normal);
-}
-
-/*
- * Get and validate the contents of the given vdev specification. This ensures
- * that the nvlist returned is well-formed, that all the devices exist, and that
- * they are not currently in use by any other known consumer. The 'poolconfig'
- * parameter is the current configuration of the pool when adding devices
- * existing pool, and is used to perform additional checks, such as changing the
- * replication level of the pool. It can be 'NULL' to indicate that this is a
- * new pool. The 'force' flag controls whether devices should be forcefully
- * added, even if they appear in use.
- */
-nvlist_t *
-make_root_vdev(zpool_handle_t *zhp, int force, int check_rep,
- boolean_t replacing, boolean_t dryrun, zpool_boot_label_t boot_type,
- uint64_t boot_size, int argc, char **argv)
-{
- nvlist_t *newroot;
- nvlist_t *poolconfig = NULL;
- is_force = force;
-
- /*
- * Construct the vdev specification. If this is successful, we know
- * that we have a valid specification, and that all devices can be
- * opened.
- */
- if ((newroot = construct_spec(argc, argv)) == NULL)
- return (NULL);
-
- if (zhp && ((poolconfig = zpool_get_config(zhp, NULL)) == NULL))
- return (NULL);
-
- /*
- * Validate each device to make sure that its not shared with another
- * subsystem. We do this even if 'force' is set, because there are some
- * uses (such as a dedicated dump device) that even '-f' cannot
- * override.
- */
- if (is_device_in_use(poolconfig, newroot, force, replacing, B_FALSE)) {
- nvlist_free(newroot);
- return (NULL);
- }
-
- /*
- * Check the replication level of the given vdevs and report any errors
- * found. We include the existing pool spec, if any, as we need to
- * catch changes against the existing replication level.
- */
- if (check_rep && check_replication(poolconfig, newroot) != 0) {
- nvlist_free(newroot);
- return (NULL);
- }
-
-#ifdef illumos
- /*
- * On pool create the new vdev spec must have one normal vdev.
- */
- if (poolconfig == NULL && num_normal_vdevs(newroot) == 0) {
- vdev_error(gettext("at least one general top-level vdev must "
- "be specified\n"));
- nvlist_free(newroot);
- return (NULL);
- }
-
- /*
- * Run through the vdev specification and label any whole disks found.
- */
- if (!dryrun && make_disks(zhp, newroot, boot_type, boot_size) != 0) {
- nvlist_free(newroot);
- return (NULL);
- }
-#endif
-
- return (newroot);
-}