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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2015 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"
struct pvchange_params {
unsigned done;
unsigned total;
};
static int _pvchange_single(struct cmd_context *cmd, struct volume_group *vg,
struct physical_volume *pv, struct processing_handle *handle)
{
struct pvchange_params *params = (struct pvchange_params *) handle->custom_handle;
const char *pv_name = pv_dev_name(pv);
char uuid[64] __attribute__((aligned(8)));
unsigned done = 0;
int allocatable = arg_int_value(cmd, allocatable_ARG, 0);
int mda_ignore = arg_int_value(cmd, metadataignore_ARG, 0);
int tagargs = arg_count(cmd, addtag_ARG) + arg_count(cmd, deltag_ARG);
params->total++;
/* If in a VG, must change using volume group. */
if (!is_orphan(pv)) {
if (tagargs && !(vg->fid->fmt->features & FMT_TAGS)) {
log_error("Volume group containing %s does not "
"support tags", pv_name);
goto bad;
}
if (arg_count(cmd, uuid_ARG) && lvs_in_vg_activated(vg)) {
log_error("Volume group containing %s has active "
"logical volumes", pv_name);
goto bad;
}
if (!archive(vg))
goto_bad;
} else if (tagargs) {
log_error("Can't change tag on Physical Volume %s not "
"in volume group", pv_name);
goto bad;
}
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 bad;
}
/* change allocatability for a PV */
if (allocatable && (pv_status(pv) & ALLOCATABLE_PV)) {
log_warn("Physical volume \"%s\" is already "
"allocatable.", pv_name);
} else if (!allocatable && !(pv_status(pv) & ALLOCATABLE_PV)) {
log_warn("Physical volume \"%s\" is already "
"unallocatable.", pv_name);
} else if (allocatable) {
log_verbose("Setting physical volume \"%s\" "
"allocatable", pv_name);
pv->status |= ALLOCATABLE_PV;
done = 1;
} else {
log_verbose("Setting physical volume \"%s\" NOT "
"allocatable", pv_name);
pv->status &= ~ALLOCATABLE_PV;
done = 1;
}
}
/*
* Needed to change a property on an orphan PV.
* i.e. the global lock is only needed for orphans.
* Convert sh to ex.
*/
if (is_orphan(pv) && !lockd_gl(cmd, "ex", 0))
return_ECMD_FAILED;
if (tagargs) {
/* tag or deltag */
if (arg_count(cmd, addtag_ARG) && !change_tag(cmd, NULL, NULL, pv, addtag_ARG))
goto_bad;
if (arg_count(cmd, deltag_ARG) && !change_tag(cmd, NULL, NULL, pv, deltag_ARG))
goto_bad;
done = 1;
}
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')
goto_bad;
if (!pv_change_metadataignore(pv, mda_ignore))
goto_bad;
done = 1;
}
if (arg_count(cmd, uuid_ARG)) {
/* --uuid: Change PV ID randomly */
memcpy(&pv->old_id, &pv->id, sizeof(pv->id));
if (!id_create(&pv->id)) {
log_error("Failed to generate new random UUID for %s.",
pv_name);
goto bad;
}
if (!id_write_format(&pv->id, uuid, sizeof(uuid)))
goto_bad;
log_verbose("Changing uuid of %s to %s.", pv_name, uuid);
if (!is_orphan(pv) && (!pv_write(cmd, pv, 1))) {
log_error("pv_write with new uuid failed "
"for %s.", pv_name);
goto bad;
}
done = 1;
}
if (!done) {
log_print_unless_silent("Physical volume %s not changed", pv_name);
return ECMD_PROCESSED;
}
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 bad;
}
backup(vg);
} else if (!(pv_write(cmd, pv, 0))) {
log_error("Failed to store physical volume \"%s\"",
pv_name);
goto bad;
}
log_print_unless_silent("Physical volume \"%s\" changed", pv_name);
params->done++;
return ECMD_PROCESSED;
bad:
log_error("Physical volume %s not changed", pv_name);
return ECMD_FAILED;
}
int pvchange(struct cmd_context *cmd, int argc, char **argv)
{
struct pvchange_params params = { 0 };
struct processing_handle *handle = NULL;
int ret;
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))) {
log_error("Please give one or more of -x, -uuid, "
"--addtag, --deltag or --metadataignore");
ret = EINVALID_CMD_LINE;
goto out;
}
if (!(handle = init_processing_handle(cmd))) {
log_error("Failed to initialize processing handle.");
ret = ECMD_FAILED;
goto out;
}
handle->custom_handle = ¶ms;
if (!(arg_count(cmd, all_ARG)) && !argc && !handle->internal_report_for_select) {
log_error("Please give a physical volume path or use --select for selection.");
ret = EINVALID_CMD_LINE;
goto out;
}
if (arg_count(cmd, all_ARG) && argc) {
log_error("Option --all and PhysicalVolumePath are exclusive.");
ret = EINVALID_CMD_LINE;
goto out;
}
if (!argc) {
/*
* 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, NULL)) {
log_error("Unable to obtain global lock.");
ret = ECMD_FAILED;
goto out;
}
}
ret = process_each_pv(cmd, argc, argv, NULL, 0, READ_FOR_UPDATE, handle, _pvchange_single);
if (!argc)
unlock_vg(cmd, VG_GLOBAL);
log_print_unless_silent("%d physical volume%s changed / %d physical volume%s not changed",
params.done, params.done == 1 ? "" : "s",
params.total - params.done, (params.total - params.done) == 1 ? "" : "s");
out:
destroy_processing_handle(cmd, handle);
return ret;
}
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