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git://sourceware.org/git/lvm2.git
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608eedf88d
Add --config for overriding most config file settings from cmdline. Quote arguments when printing command line. Remove linefeed from 'initialising logging' message. Add 'Completed' debug message. Don't attempt library exit after reloading config files. Always compile with libdevmapper, even if device-mapper is disabled.
314 lines
8.4 KiB
C
314 lines
8.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License v.2.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "tools.h"
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struct pvcreate_params {
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int zero;
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};
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const char _really_init[] =
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"Really INITIALIZE physical volume \"%s\" of volume group \"%s\" [y/n]? ";
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/*
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* See if we may pvcreate on this device.
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* 0 indicates we may not.
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*/
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static int pvcreate_check(struct cmd_context *cmd, const char *name)
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{
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struct physical_volume *pv;
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struct device *dev;
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uint64_t md_superblock;
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/* is the partition type set correctly ? */
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if ((arg_count(cmd, force_ARG) < 1) && !is_lvm_partition(name)) {
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log_error("%s: Not LVM partition type: use -f to override",
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name);
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return 0;
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}
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/* Is there a pv here already? */
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/* FIXME Use partial mode here? */
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pv = pv_read(cmd, name, NULL, NULL, 0);
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/* Allow partial & exported VGs to be destroyed. */
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/* We must have -ff to overwrite a non orphan */
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if (pv && pv->vg_name[0] && arg_count(cmd, force_ARG) != 2) {
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log_error("Can't initialize physical volume \"%s\" of "
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"volume group \"%s\" without -ff", name, pv->vg_name);
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return 0;
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}
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/* prompt */
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if (pv && pv->vg_name[0] && !arg_count(cmd, yes_ARG) &&
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yes_no_prompt(_really_init, name, pv->vg_name) == 'n') {
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log_print("%s: physical volume not initialized", name);
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return 0;
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}
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dev = dev_cache_get(name, cmd->filter);
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/* Is there an md superblock here? */
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if (!dev && md_filtering()) {
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unlock_vg(cmd, ORPHAN);
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persistent_filter_wipe(cmd->filter);
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lvmcache_destroy();
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init_md_filtering(0);
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if (!lock_vol(cmd, ORPHAN, LCK_VG_WRITE)) {
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log_error("Can't get lock for orphan PVs");
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init_md_filtering(1);
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return 0;
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}
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dev = dev_cache_get(name, cmd->filter);
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init_md_filtering(1);
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}
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if (!dev) {
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log_error("Device %s not found (or ignored by filtering).", name);
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return 0;
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}
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if (!dev_test_excl(dev)) {
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log_error("Can't open %s exclusively. Mounted filesystem?",
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name);
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return 0;
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}
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/* Wipe superblock? */
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if (dev_is_md(dev, &md_superblock) &&
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((!arg_count(cmd, uuidstr_ARG) &&
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!arg_count(cmd, restorefile_ARG)) ||
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arg_count(cmd, yes_ARG) ||
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(yes_no_prompt("Software RAID md superblock "
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"detected on %s. Wipe it? [y/n] ", name) == 'y'))) {
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log_print("Wiping software RAID md superblock on %s", name);
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if (!dev_set(dev, md_superblock, 4, 0)) {
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log_error("Failed to wipe RAID md superblock on %s",
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name);
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return 0;
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}
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}
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if (pv && pv->vg_name[0] && arg_count(cmd, force_ARG)) {
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log_print("WARNING: Forcing physical volume creation on "
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"%s%s%s%s", name,
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pv->vg_name[0] ? " of volume group \"" : "",
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pv->vg_name[0] ? pv->vg_name : "",
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pv->vg_name[0] ? "\"" : "");
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}
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return 1;
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}
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static int pvcreate_single(struct cmd_context *cmd, const char *pv_name,
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void *handle)
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{
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struct pvcreate_params *pp = (struct pvcreate_params *) handle;
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struct physical_volume *pv, *existing_pv;
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struct id id, *idp = NULL;
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const char *uuid = NULL;
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uint64_t size = 0;
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struct device *dev;
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struct list mdas;
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int pvmetadatacopies;
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uint64_t pvmetadatasize;
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struct volume_group *vg;
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const char *restorefile;
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uint64_t pe_start = 0;
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uint32_t extent_count = 0, extent_size = 0;
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if (arg_count(cmd, uuidstr_ARG)) {
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uuid = arg_str_value(cmd, uuidstr_ARG, "");
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if (!id_read_format(&id, uuid))
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return EINVALID_CMD_LINE;
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if ((dev = device_from_pvid(cmd, &id)) &&
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(dev != dev_cache_get(pv_name, cmd->filter))) {
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log_error("uuid %s already in use on \"%s\"", uuid,
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dev_name(dev));
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return ECMD_FAILED;
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}
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idp = &id;
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}
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if (arg_count(cmd, restorefile_ARG)) {
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restorefile = arg_str_value(cmd, restorefile_ARG, "");
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/* The uuid won't already exist */
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init_partial(1);
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if (!(vg = backup_read_vg(cmd, NULL, restorefile))) {
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log_error("Unable to read volume group from %s",
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restorefile);
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return ECMD_FAILED;
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}
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init_partial(0);
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if (!(existing_pv = find_pv_in_vg_by_uuid(vg, idp))) {
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log_error("Can't find uuid %s in backup file %s",
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uuid, restorefile);
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return ECMD_FAILED;
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}
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pe_start = existing_pv->pe_start;
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extent_size = existing_pv->pe_size;
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extent_count = existing_pv->pe_count;
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}
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if (!lock_vol(cmd, ORPHAN, LCK_VG_WRITE)) {
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log_error("Can't get lock for orphan PVs");
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return ECMD_FAILED;
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}
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if (!pvcreate_check(cmd, pv_name))
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goto error;
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if (arg_sign_value(cmd, physicalvolumesize_ARG, 0) == SIGN_MINUS) {
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log_error("Physical volume size may not be negative");
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goto error;
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}
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size = arg_uint64_value(cmd, physicalvolumesize_ARG, UINT64_C(0)) * 2;
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if (arg_sign_value(cmd, metadatasize_ARG, 0) == SIGN_MINUS) {
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log_error("Metadata size may not be negative");
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goto error;
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}
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pvmetadatasize = arg_uint64_value(cmd, metadatasize_ARG, UINT64_C(0))
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* 2;
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if (!pvmetadatasize)
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pvmetadatasize = find_config_tree_int(cmd,
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"metadata/pvmetadatasize",
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DEFAULT_PVMETADATASIZE);
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pvmetadatacopies = arg_int_value(cmd, metadatacopies_ARG, -1);
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if (pvmetadatacopies < 0)
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pvmetadatacopies = find_config_tree_int(cmd,
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"metadata/pvmetadatacopies",
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DEFAULT_PVMETADATACOPIES);
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if (!(dev = dev_cache_get(pv_name, cmd->filter))) {
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log_error("%s: Couldn't find device. Check your filters?",
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pv_name);
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goto error;
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}
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list_init(&mdas);
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if (!(pv = pv_create(cmd->fmt, dev, idp, size, pe_start,
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extent_count, extent_size,
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pvmetadatacopies, pvmetadatasize, &mdas))) {
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log_error("Failed to setup physical volume \"%s\"", pv_name);
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goto error;
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}
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log_verbose("Set up physical volume for \"%s\" with %" PRIu64
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" available sectors", pv_name, pv->size);
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/* Wipe existing label first */
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if (!label_remove(pv->dev)) {
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log_error("Failed to wipe existing label on %s", pv_name);
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goto error;
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}
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if (pp->zero) {
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log_verbose("Zeroing start of device %s", pv_name);
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if (!dev_open_quiet(dev)) {
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log_error("%s not opened: device not zeroed", pv_name);
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goto error;
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}
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if (!dev_set(dev, UINT64_C(0), (size_t) 2048, 0)) {
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log_error("%s not wiped: aborting", pv_name);
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dev_close(dev);
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goto error;
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}
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dev_close(dev);
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}
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log_very_verbose("Writing physical volume data to disk \"%s\"",
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pv_name);
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if (!(pv_write(cmd, pv, &mdas, arg_int64_value(cmd, labelsector_ARG,
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DEFAULT_LABELSECTOR)))) {
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log_error("Failed to write physical volume \"%s\"", pv_name);
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goto error;
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}
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log_print("Physical volume \"%s\" successfully created", pv_name);
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unlock_vg(cmd, ORPHAN);
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return ECMD_PROCESSED;
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error:
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unlock_vg(cmd, ORPHAN);
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return ECMD_FAILED;
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}
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int pvcreate(struct cmd_context *cmd, int argc, char **argv)
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{
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int i, r;
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int ret = ECMD_PROCESSED;
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struct pvcreate_params pp;
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if (!argc) {
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log_error("Please enter a physical volume path");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(cmd, restorefile_ARG) && !arg_count(cmd, uuidstr_ARG)) {
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log_error("--uuid is required with --restorefile");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(cmd, uuidstr_ARG) && argc != 1) {
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log_error("Can only set uuid on one volume at once");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(cmd, yes_ARG) && !arg_count(cmd, force_ARG)) {
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log_error("Option y can only be given with option f");
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return EINVALID_CMD_LINE;
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}
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if (arg_int_value(cmd, labelsector_ARG, 0) >= LABEL_SCAN_SECTORS) {
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log_error("labelsector must be less than %lu",
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LABEL_SCAN_SECTORS);
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return EINVALID_CMD_LINE;
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}
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if (!(cmd->fmt->features & FMT_MDAS) &&
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(arg_count(cmd, metadatacopies_ARG) ||
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arg_count(cmd, metadatasize_ARG))) {
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log_error("Metadata parameters only apply to text format");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(cmd, metadatacopies_ARG) &&
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arg_int_value(cmd, metadatacopies_ARG, -1) > 2) {
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log_error("Metadatacopies may only be 0, 1 or 2");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(cmd, zero_ARG))
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pp.zero = strcmp(arg_str_value(cmd, zero_ARG, "y"), "n");
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else if (arg_count(cmd, restorefile_ARG) || arg_count(cmd, uuidstr_ARG))
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pp.zero = 0;
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else
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pp.zero = 1;
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for (i = 0; i < argc; i++) {
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r = pvcreate_single(cmd, argv[i], &pp);
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if (r > ret)
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ret = r;
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}
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return ret;
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}
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