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/*
* Copyright (C) 2001 Sistina Software
*
* pvcreate is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* pvcreate is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LVM; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "tools.h"
#include "defaults.h"
const char _really_init[] =
"Really INITIALIZE physical volume \"%s\" of volume group \"%s\" [y/n]? ";
/*
* See if we may pvcreate on this device.
* 0 indicates we may not.
*/
static int pvcreate_check(struct cmd_context *cmd, const char *name)
{
struct physical_volume *pv;
/* is the partition type set correctly ? */
if ((arg_count(cmd, force_ARG) < 1) && !is_lvm_partition(name)) {
log_error("%s: Not LVM partition type: use -f to override",
name);
return 0;
}
/* is there a pv here already */
if (!(pv = pv_read(cmd, name, NULL, NULL)))
return 1;
/* orphan ? */
if (!pv->vg_name[0])
return 1;
/* Allow partial & exported VGs to be destroyed. */
/* we must have -ff to overwrite a non orphan */
if (arg_count(cmd, force_ARG) < 2) {
log_error("Can't initialize physical volume \"%s\" of "
"volume group \"%s\" without -ff", name, pv->vg_name);
return 0;
}
/* prompt */
if (!arg_count(cmd, yes_ARG) &&
yes_no_prompt(_really_init, name, pv->vg_name) == 'n') {
log_print("%s: physical volume not initialized", name);
return 0;
}
if (arg_count(cmd, force_ARG)) {
log_print("WARNING: Forcing physical volume creation on "
"%s%s%s%s", name,
pv->vg_name[0] ? " of volume group \"" : "",
pv->vg_name[0] ? pv->vg_name : "",
pv->vg_name[0] ? "\"" : "");
}
return 1;
}
static void pvcreate_single(struct cmd_context *cmd, const char *pv_name,
void *handle)
{
struct physical_volume *pv, *existing_pv;
struct id id, *idp = NULL;
char *uuid;
uint64_t size = 0;
struct device *dev;
struct list mdas;
int pvmetadatacopies;
uint64_t pvmetadatasize;
struct volume_group *vg;
char *restorefile;
uint64_t pe_start = 0;
uint32_t extent_count = 0, extent_size = 0;
if (arg_count(cmd, uuidstr_ARG)) {
uuid = arg_str_value(cmd, uuidstr_ARG, "");
if (!id_read_format(&id, uuid))
return;
if ((dev = device_from_pvid(cmd, &id)) &&
(dev != dev_cache_get(pv_name, cmd->filter))) {
log_error("uuid %s already in use on \"%s\"", uuid,
dev_name(dev));
return;
}
idp = &id;
}
if (arg_count(cmd, restorefile_ARG)) {
restorefile = arg_str_value(cmd, restorefile_ARG, "");
/* The uuid won't already exist */
init_partial(1);
if (!(vg = backup_read_vg(cmd, NULL, restorefile))) {
log_error("Unable to read volume group from %s",
restorefile);
return;
}
init_partial(0);
if (!(existing_pv = find_pv_in_vg_by_uuid(vg, idp))) {
log_error("Can't find uuid %s in backup file %s",
uuid, restorefile);
return;
}
pe_start = existing_pv->pe_start;
extent_size = existing_pv->pe_size;
extent_count = existing_pv->pe_count;
}
if (!lock_vol(cmd, "", LCK_VG_WRITE)) {
log_error("Can't get lock for orphan PVs");
return;
}
if (!pvcreate_check(cmd, pv_name))
goto error;
size = arg_uint64_value(cmd, physicalvolumesize_ARG, 0) * 2;
pvmetadatasize = arg_uint64_value(cmd, metadatasize_ARG, 0) * 2;
if (!pvmetadatasize)
pvmetadatasize = find_config_int(cmd->cf->root,
"metadata/pvmetadatasize",
'/', DEFAULT_PVMETADATASIZE);
pvmetadatacopies = arg_int_value(cmd, metadatacopies_ARG, -1);
if (pvmetadatacopies < 0)
pvmetadatacopies = find_config_int(cmd->cf->root,
"metadata/pvmetadatacopies",
'/',
DEFAULT_PVMETADATACOPIES);
if (!(dev = dev_cache_get(pv_name, cmd->filter))) {
log_error("%s: Couldn't find device.", pv_name);
goto error;
}
list_init(&mdas);
if (!(pv = pv_create(cmd->fmt, dev, idp, size, pe_start,
extent_count, extent_size,
pvmetadatacopies, pvmetadatasize, &mdas))) {
log_error("Failed to setup physical volume \"%s\"", pv_name);
goto error;
}
log_verbose("Set up physical volume for \"%s\" with %" PRIu64
" available sectors", pv_name, pv->size);
/* Wipe existing label first */
if (!label_remove(pv->dev)) {
log_error("Failed to wipe existing label on %s", pv_name);
goto error;
}
log_very_verbose("Writing physical volume data to disk \"%s\"",
pv_name);
if (!(pv_write(cmd, pv, &mdas, arg_int_value(cmd, labelsector_ARG,
DEFAULT_LABELSECTOR)))) {
log_error("Failed to write physical volume \"%s\"", pv_name);
goto error;
}
log_print("Physical volume \"%s\" successfully created", pv_name);
error:
unlock_vg(cmd, "");
return;
}
int pvcreate(struct cmd_context *cmd, int argc, char **argv)
{
int i;
if (!argc) {
log_error("Please enter a physical volume path");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, restorefile_ARG) && !arg_count(cmd, uuidstr_ARG)) {
log_error("--uuid is required with --restorefile");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, uuidstr_ARG) && argc != 1) {
log_error("Can only set uuid on one volume at once");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, yes_ARG) && !arg_count(cmd, force_ARG)) {
log_error("Option y can only be given with option f");
return EINVALID_CMD_LINE;
}
if (arg_int_value(cmd, labelsector_ARG, 0) >= LABEL_SCAN_SECTORS) {
log_error("labelsector must be less than %lu",
LABEL_SCAN_SECTORS);
return EINVALID_CMD_LINE;
}
if (!(cmd->fmt->features & FMT_MDAS) &&
(arg_count(cmd, metadatacopies_ARG) ||
arg_count(cmd, metadatasize_ARG))) {
log_error("Metadata parameters only apply to text format");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, metadatacopies_ARG) &&
arg_int_value(cmd, metadatacopies_ARG, -1) > 2) {
log_error("Metadatacopies may only be 0, 1 or 2");
return EINVALID_CMD_LINE;
}
for (i = 0; i < argc; i++) {
pvcreate_single(cmd, argv[i], NULL);
pool_empty(cmd->mem);
}
return 0;
}
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