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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "tools.h"
/*
* Intial sanity checking of recovery-related command-line arguments.
* These args are: --restorefile, --uuid, and --physicalvolumesize
*
* Output arguments:
* pp: structure allocated by caller, fields written / validated here
*/
static int _pvcreate_restore_params_from_args(struct cmd_context *cmd, int argc,
struct pvcreate_params *pp)
{
pp->restorefile = arg_str_value(cmd, restorefile_ARG, NULL);
if (arg_is_set(cmd, restorefile_ARG) && !arg_is_set(cmd, uuidstr_ARG)) {
log_error("--uuid is required with --restorefile");
return 0;
}
if (!arg_is_set(cmd, restorefile_ARG) && arg_is_set(cmd, uuidstr_ARG)) {
if (!arg_is_set(cmd, norestorefile_ARG) &&
find_config_tree_bool(cmd, devices_require_restorefile_with_uuid_CFG, NULL)) {
log_error("--restorefile is required with --uuid");
return 0;
}
}
if (arg_is_set(cmd, uuidstr_ARG) && argc != 1) {
log_error("Can only set uuid on one volume at once");
return 0;
}
if (arg_is_set(cmd, uuidstr_ARG)) {
pp->uuid_str = arg_str_value(cmd, uuidstr_ARG, "");
if (!id_read_format(&pp->pva.id, pp->uuid_str))
return 0;
pp->pva.idp = &pp->pva.id;
}
if (arg_sign_value(cmd, setphysicalvolumesize_ARG, SIGN_NONE) == SIGN_MINUS) {
log_error("Physical volume size may not be negative");
return 0;
}
pp->pva.size = arg_uint64_value(cmd, setphysicalvolumesize_ARG, UINT64_C(0));
if (arg_is_set(cmd, restorefile_ARG) || arg_is_set(cmd, uuidstr_ARG))
pp->zero = 0;
return 1;
}
static int _pvcreate_restore_params_from_backup(struct cmd_context *cmd,
struct pvcreate_params *pp)
{
struct volume_group *vg;
struct pv_list *existing_pvl;
/*
* When restoring a PV, params need to be read from a backup file.
*/
if (!pp->restorefile)
return 1;
if (!(vg = backup_read_vg(cmd, NULL, pp->restorefile))) {
log_error("Unable to read volume group from %s", pp->restorefile);
return 0;
}
if (!(existing_pvl = find_pv_in_vg_by_uuid(vg, &pp->pva.id))) {
release_vg(vg);
log_error("Can't find uuid %s in backup file %s",
pp->uuid_str, pp->restorefile);
return 0;
}
pp->pva.ba_start = pv_ba_start(existing_pvl->pv);
pp->pva.ba_size = pv_ba_size(existing_pvl->pv);
pp->pva.pe_start = pv_pe_start(existing_pvl->pv);
pp->pva.extent_size = pv_pe_size(existing_pvl->pv);
pp->pva.extent_count = pv_pe_count(existing_pvl->pv);
release_vg(vg);
return 1;
}
int pvcreate(struct cmd_context *cmd, int argc, char **argv)
{
struct processing_handle *handle;
struct pvcreate_params pp;
int ret;
/*
* Five kinds of pvcreate param values:
* 1. defaults
* 2. recovery-related command line args
* 3. recovery-related args from backup file
* 4. normal command line args
* (this also checks some settings from 2 & 3)
* 5. argc/argv free args specifying devices
*/
pvcreate_params_set_defaults(&pp);
if (!_pvcreate_restore_params_from_args(cmd, argc, &pp))
return EINVALID_CMD_LINE;
if (!_pvcreate_restore_params_from_backup(cmd, &pp))
return EINVALID_CMD_LINE;
if (!pvcreate_params_from_args(cmd, &pp))
return EINVALID_CMD_LINE;
/*
* If --metadatasize was not given with --restorefile, set it to pe_start.
* Later code treats this as a maximum size and reduces it to fit.
*/
if (!arg_is_set(cmd, metadatasize_ARG) && arg_is_set(cmd, restorefile_ARG))
pp.pva.pvmetadatasize = pp.pva.pe_start;
/* FIXME Also needs to check any 2nd metadata area isn't inside the data area! */
pp.pv_count = argc;
pp.pv_names = argv;
/* Needed to change the set of orphan PVs. */
if (!lock_global(cmd, "ex"))
return_ECMD_FAILED;
clear_hint_file(cmd);
cmd->create_edit_devices_file = 1;
if (!lvmcache_label_scan(cmd))
return_ECMD_FAILED;
if (!(handle = init_processing_handle(cmd, NULL))) {
log_error("Failed to initialize processing handle.");
return ECMD_FAILED;
}
if (!pvcreate_each_device(cmd, handle, &pp))
ret = ECMD_FAILED;
else
ret = ECMD_PROCESSED;
destroy_processing_handle(cmd, handle);
return ret;
}
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