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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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_each_restore_params_from_args(struct cmd_context *cmd, int argc,
struct pvcreate_each_params *pp)
{
const char *uuid = NULL;
pp->restorefile = arg_str_value(cmd, restorefile_ARG, NULL);
if (arg_count(cmd, restorefile_ARG) && !arg_count(cmd, uuidstr_ARG)) {
log_error("--uuid is required with --restorefile");
return 0;
}
if (!arg_count(cmd, restorefile_ARG) && arg_count(cmd, uuidstr_ARG)) {
if (!arg_count(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_count(cmd, uuidstr_ARG) && argc != 1) {
log_error("Can only set uuid on one volume at once");
return 0;
}
if (arg_count(cmd, uuidstr_ARG)) {
pp->uuid_str = arg_str_value(cmd, uuidstr_ARG, "");
if (!id_read_format(&pp->id, uuid))
return 0;
}
if (arg_sign_value(cmd, physicalvolumesize_ARG, SIGN_NONE) == SIGN_MINUS) {
log_error("Physical volume size may not be negative");
return 0;
}
pp->size = arg_uint64_value(cmd, physicalvolumesize_ARG, UINT64_C(0));
if (arg_count(cmd, restorefile_ARG) || arg_count(cmd, uuidstr_ARG))
pp->zero = 0;
return 1;
}
static int pvcreate_each_restore_params_from_backup(struct cmd_context *cmd,
struct pvcreate_each_params *pp)
{
struct volume_group *vg;
struct pv_list *existing_pvl;
const char *uuid;
/*
* When restoring a PV, params need to be read from a backup file.
*/
if (!pp->restorefile)
return 1;
uuid = arg_str_value(cmd, uuidstr_ARG, "");
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->id))) {
release_vg(vg);
log_error("Can't find uuid %s in backup file %s",
uuid, pp->restorefile);
return 0;
}
pp->ba_start = pv_ba_start(existing_pvl->pv);
pp->ba_size = pv_ba_size(existing_pvl->pv);
pp->pe_start = pv_pe_start(existing_pvl->pv);
pp->extent_size = pv_pe_size(existing_pvl->pv);
pp->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_each_params pp;
int ret;
if (!argc) {
log_error("Please enter a physical volume path.");
return 0;
}
/*
* Five kinds of pvcreate param values:
* 1. defaults
* 2. normal command line args
* 3. recovery-related command line args
* 4. recovery-related args from backup file
* 5. argc/argv free args specifying devices
*/
pvcreate_each_params_set_defaults(&pp);
if (!pvcreate_each_params_from_args(cmd, &pp))
return EINVALID_CMD_LINE;
if (!pvcreate_each_restore_params_from_args(cmd, argc, &pp))
return EINVALID_CMD_LINE;
if (!pvcreate_each_restore_params_from_backup(cmd, &pp))
return EINVALID_CMD_LINE;
pp.pv_count = argc;
pp.pv_names = argv;
/*
* Needed to change the set of orphan PVs.
* (disable afterward to prevent process_each_pv from doing
* a shared global lock since it's already acquired it ex.)
*/
if (!lockd_gl(cmd, "ex", 0))
return_ECMD_FAILED;
cmd->lockd_gl_disable = 1;
if (!(handle = init_processing_handle(cmd))) {
log_error("Failed to initialize processing handle.");
return ECMD_FAILED;
}
if (!pvcreate_each_device(cmd, handle, &pp))
ret = ECMD_FAILED;
else {
ret = ECMD_PROCESSED;
unlock_vg(cmd, VG_ORPHANS);
}
destroy_processing_handle(cmd, handle);
return ret;
}
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