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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 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"
/* FIXME Locking. PVs in VG. */
static int _pvchange_single(struct cmd_context *cmd, struct volume_group *vg,
struct physical_volume *pv,
void *handle __attribute__((unused)))
{
uint32_t orig_pe_alloc_count;
/* FIXME Next three only required for format1. */
uint32_t orig_pe_count, orig_pe_size;
uint64_t orig_pe_start;
const char *pv_name = pv_dev_name(pv);
const char *tag = NULL;
const char *orig_vg_name;
char uuid[64] __attribute__((aligned(8)));
int allocatable = 0;
int tagarg = 0;
int r = 0;
int mda_ignore = 0;
struct arg_value_group_list *current_group;
if (arg_count(cmd, addtag_ARG))
tagarg = addtag_ARG;
else if (arg_count(cmd, deltag_ARG))
tagarg = deltag_ARG;
if (arg_count(cmd, allocatable_ARG))
allocatable = !strcmp(arg_str_value(cmd, allocatable_ARG, "n"),
"y");
if (arg_count(cmd, metadataignore_ARG))
mda_ignore = !strcmp(arg_str_value(cmd, metadataignore_ARG, "n"),
"y");
/* If in a VG, must change using volume group. */
if (!is_orphan(pv)) {
if (tagarg && !(vg->fid->fmt->features & FMT_TAGS)) {
log_error("Volume group containing %s does not "
"support tags", pv_name);
goto out;
}
if (arg_count(cmd, uuid_ARG) && lvs_in_vg_activated(vg)) {
log_error("Volume group containing %s has active "
"logical volumes", pv_name);
goto out;
}
if (!archive(vg))
goto out;
} else {
if (tagarg) {
log_error("Can't change tag on Physical Volume %s not "
"in volume group", pv_name);
return 0;
}
}
if (arg_count(cmd, allocatable_ARG)) {
if (is_orphan(pv) &&
!(pv->fmt->features & FMT_ORPHAN_ALLOCATABLE)) {
log_error("Allocatability not supported by orphan "
"%s format PV %s", pv->fmt->name, pv_name);
goto out;
}
/* change allocatability for a PV */
if (allocatable && (pv_status(pv) & ALLOCATABLE_PV)) {
log_error("Physical volume \"%s\" is already "
"allocatable", pv_name);
r = 1;
goto out;
}
if (!allocatable && !(pv_status(pv) & ALLOCATABLE_PV)) {
log_error("Physical volume \"%s\" is already "
"unallocatable", pv_name);
r = 1;
goto out;
}
if (allocatable) {
log_verbose("Setting physical volume \"%s\" "
"allocatable", pv_name);
pv->status |= ALLOCATABLE_PV;
} else {
log_verbose("Setting physical volume \"%s\" NOT "
"allocatable", pv_name);
pv->status &= ~ALLOCATABLE_PV;
}
} else if (tagarg) {
/* tag or deltag */
dm_list_iterate_items(current_group, &cmd->arg_value_groups) {
if (!grouped_arg_is_set(current_group->arg_values, tagarg))
continue;
if (!(tag = grouped_arg_str_value(current_group->arg_values, tagarg, NULL))) {
log_error("Failed to get tag");
goto out;
}
if ((tagarg == addtag_ARG)) {
if (!str_list_add(cmd->mem, &pv->tags, tag)) {
log_error("Failed to add tag %s to physical "
"volume %s", tag, pv_name);
goto out;
}
} else if (!str_list_del(&pv->tags, tag)) {
log_error("Failed to remove tag %s from "
"physical volume" "%s", tag, pv_name);
goto out;
}
}
} else if (arg_count(cmd, metadataignore_ARG)) {
if ((vg_mda_copies(vg) != VGMETADATACOPIES_UNMANAGED) &&
(arg_count(cmd, force_ARG) == PROMPT) &&
yes_no_prompt("Override preferred number of copies "
"of VG %s metadata? [y/n]: ",
pv_vg_name(pv)) == 'n') {
log_error("Physical volume %s not changed", pv_name);
goto out;
}
if (!pv_change_metadataignore(pv, mda_ignore))
goto out;
} else {
/* --uuid: Change PV ID randomly */
if (!id_create(&pv->id)) {
log_error("Failed to generate new random UUID for %s.",
pv_name);
goto out;
}
if (!id_write_format(&pv->id, uuid, sizeof(uuid)))
goto_out;
log_verbose("Changing uuid of %s to %s.", pv_name, uuid);
if (!is_orphan(pv)) {
orig_vg_name = pv_vg_name(pv);
orig_pe_alloc_count = pv_pe_alloc_count(pv);
/* FIXME format1 pv_write doesn't preserve these. */
orig_pe_size = pv_pe_size(pv);
orig_pe_start = pv_pe_start(pv);
orig_pe_count = pv_pe_count(pv);
pv->vg_name = pv->fmt->orphan_vg_name;
pv->pe_alloc_count = 0;
if (!(pv_write(cmd, pv, NULL, INT64_C(-1)))) {
log_error("pv_write with new uuid failed "
"for %s.", pv_name);
goto out;
}
pv->vg_name = orig_vg_name;
pv->pe_alloc_count = orig_pe_alloc_count;
pv->pe_size = orig_pe_size;
pv->pe_start = orig_pe_start;
pv->pe_count = orig_pe_count;
}
}
log_verbose("Updating physical volume \"%s\"", pv_name);
if (!is_orphan(pv)) {
if (!vg_write(vg) || !vg_commit(vg)) {
log_error("Failed to store physical volume \"%s\" in "
"volume group \"%s\"", pv_name, vg->name);
goto out;
}
backup(vg);
} else if (!(pv_write(cmd, pv, NULL, INT64_C(-1)))) {
log_error("Failed to store physical volume \"%s\"",
pv_name);
goto out;
}
log_print("Physical volume \"%s\" changed", pv_name);
r = 1;
out:
return r;
}
int pvchange(struct cmd_context *cmd, int argc, char **argv)
{
int opt = 0;
int done = 0;
int total = 0;
struct volume_group *vg;
const char *vg_name;
char *pv_name;
struct pv_list *pvl;
struct dm_list *vgnames;
struct str_list *sll;
if (arg_count(cmd, allocatable_ARG) + arg_is_set(cmd, addtag_ARG) +
arg_is_set(cmd, deltag_ARG) + arg_count(cmd, uuid_ARG) +
arg_count(cmd, metadataignore_ARG) != 1) {
log_error("Please give exactly one option of -x, -uuid, "
"--addtag or --deltag");
return EINVALID_CMD_LINE;
}
if (!(arg_count(cmd, all_ARG)) && !argc) {
log_error("Please give a physical volume path");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, all_ARG) && argc) {
log_error("Option a and PhysicalVolumePath are exclusive");
return EINVALID_CMD_LINE;
}
if (argc) {
log_verbose("Using physical volume(s) on command line");
for (; opt < argc; opt++) {
pv_name = argv[opt];
unescape_colons_and_at_signs(pv_name, NULL, NULL);
vg_name = find_vgname_from_pvname(cmd, pv_name);
if (!vg_name) {
log_error("Failed to read physical volume %s",
pv_name);
continue;
}
vg = vg_read_for_update(cmd, vg_name, NULL, 0);
if (vg_read_error(vg)) {
free_vg(vg);
stack;
continue;
}
pvl = find_pv_in_vg(vg, pv_name);
if (!pvl || !pvl->pv) {
log_error("Unable to find %s in %s",
pv_name, vg_name);
continue;
}
total++;
done += _pvchange_single(cmd, vg,
pvl->pv, NULL);
unlock_and_free_vg(cmd, vg, vg_name);
}
} else {
log_verbose("Scanning for physical volume names");
/* FIXME: share code with toollib */
/*
* Take the global lock here so the lvmcache remains
* consistent across orphan/non-orphan vg locks. If we don't
* take the lock here, pvs with 0 mdas in a non-orphan VG will
* be processed twice.
*/
if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_WRITE)) {
log_error("Unable to obtain global lock.");
return ECMD_FAILED;
}
if ((vgnames = get_vgnames(cmd, 1)) &&
!dm_list_empty(vgnames)) {
dm_list_iterate_items(sll, vgnames) {
vg = vg_read_for_update(cmd, sll->str, NULL, 0);
if (vg_read_error(vg)) {
free_vg(vg);
stack;
continue;
}
dm_list_iterate_items(pvl, &vg->pvs) {
total++;
done += _pvchange_single(cmd, vg,
pvl->pv,
NULL);
}
unlock_and_free_vg(cmd, vg, sll->str);
}
}
}
unlock_vg(cmd, VG_GLOBAL);
log_print("%d physical volume%s changed / %d physical volume%s "
"not changed",
done, done == 1 ? "" : "s",
total - done, (total - done) == 1 ? "" : "s");
return (total == done) ? ECMD_PROCESSED : ECMD_FAILED;
}
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