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8cfc385491
The lvm fullreport works per VG and as such, the vg, lv, pv, seg and pvseg subreport is done for each VG. However, if the PV is not part of any VG yet, we still want to display pv and pvseg subreports for these "orphan" PVs - so enable this for lvm fullreport's process_each_vg call.
227 lines
6.4 KiB
C
227 lines
6.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "tools.h"
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struct lvrename_params {
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int historical;
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const char *lv_name_old;
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const char *lv_name_new;
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};
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/*
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* Dummy LV to represent historical LV.
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*/
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static struct logical_volume _historical_lv = {
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.name = "",
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.major = -1,
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.minor = -1,
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.snapshot_segs = DM_LIST_HEAD_INIT(_historical_lv.snapshot_segs),
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.segments = DM_LIST_HEAD_INIT(_historical_lv.segments),
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.tags = DM_LIST_HEAD_INIT(_historical_lv.tags),
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.segs_using_this_lv = DM_LIST_HEAD_INIT(_historical_lv.segs_using_this_lv),
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.indirect_glvs = DM_LIST_HEAD_INIT(_historical_lv.indirect_glvs),
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.hostname = "",
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};
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static int _lvrename_single(struct cmd_context *cmd, const char *vg_name,
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struct volume_group *vg, struct processing_handle *handle)
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{
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struct lvrename_params *lp = (struct lvrename_params *) handle->custom_handle;
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struct generic_logical_volume *glv;
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struct logical_volume *lv;
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int ret = ECMD_FAILED;
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if (!lp->historical) {
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if (!(lv = find_lv(vg, lp->lv_name_old))) {
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log_error("Existing logical volume \"%s\" not found in "
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"volume group \"%s\"", lp->lv_name_old, vg_name);
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goto bad;
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}
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if (lv_is_raid_image(lv) || lv_is_raid_metadata(lv)) {
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log_error("Cannot rename a RAID %s directly",
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lv_is_raid_image(lv) ? "image" :
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"metadata area");
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goto bad;
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}
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if (lv_is_raid_with_tracking(lv)) {
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log_error("Cannot rename %s while it is tracking a split image",
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lv->name);
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goto bad;
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}
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} else {
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if (!(glv = find_historical_glv(vg, lp->lv_name_old, 0, NULL))) {
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log_error("Existing historical logical volume \"%s\" not found in "
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"volume group \"%s\"", lp->lv_name_old, vg_name);
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goto bad;
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}
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_historical_lv.vg = vg;
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_historical_lv.name = lp->lv_name_old;
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_historical_lv.this_glv = glv;
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lv = &_historical_lv;
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}
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/*
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* The lvmlockd LV lock is only acquired here to ensure the LV is not
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* active on another host. This requests a transient LV lock.
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* If the LV is active, a persistent LV lock already exists in
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* lvmlockd, and the transient lock request does nothing.
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* If the LV is not active, then no LV lock exists and the transient
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* lock request acquires the LV lock (or fails). The transient lock
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* is automatically released when the command exits.
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*/
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if (!lockd_lv(cmd, lv, "ex", 0))
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goto_bad;
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if (!lv_rename(cmd, lv, lp->lv_name_new))
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goto_bad;
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log_print_unless_silent("Renamed \"%s%s\" to \"%s%s\" in volume group \"%s\"",
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lp->historical ? HISTORICAL_LV_PREFIX : "", lp->lv_name_old,
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lp->historical ? HISTORICAL_LV_PREFIX : "", lp->lv_name_new,
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vg_name);
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ret = ECMD_PROCESSED;
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bad:
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return ret;
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}
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/*
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* lvrename command implementation.
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* Check arguments and call lv_rename() to execute the request.
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*/
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int lvrename(struct cmd_context *cmd, int argc, char **argv)
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{
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struct processing_handle *handle = NULL;
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struct lvrename_params lp = { 0 };
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size_t maxlen;
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char *lv_name_old, *lv_name_new;
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const char *vg_name, *vg_name_new, *vg_name_old;
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int historical = 0;
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char *st;
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int ret;
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cmd->include_historical_lvs = 1;
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if (argc == 3) {
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vg_name = skip_dev_dir(cmd, argv[0], NULL);
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lv_name_old = argv[1];
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lv_name_new = argv[2];
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if (strchr(lv_name_old, '/') &&
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(vg_name_old = extract_vgname(cmd, lv_name_old)) &&
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strcmp(vg_name_old, vg_name)) {
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log_error("Please use a single volume group name "
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"(\"%s\" or \"%s\")", vg_name, vg_name_old);
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return EINVALID_CMD_LINE;
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}
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} else if (argc == 2) {
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lv_name_old = argv[0];
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lv_name_new = argv[1];
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vg_name = extract_vgname(cmd, lv_name_old);
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} else {
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log_error("Old and new logical volume names required");
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return EINVALID_CMD_LINE;
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}
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if (!validate_name(vg_name)) {
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log_error("Please provide a valid volume group name");
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return EINVALID_CMD_LINE;
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}
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if (strchr(lv_name_new, '/') &&
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(vg_name_new = extract_vgname(cmd, lv_name_new)) &&
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strcmp(vg_name, vg_name_new)) {
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log_error("Logical volume names must "
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"have the same volume group (\"%s\" or \"%s\")",
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vg_name, vg_name_new);
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return EINVALID_CMD_LINE;
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}
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if ((st = strrchr(lv_name_old, '/')))
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lv_name_old = st + 1;
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if ((st = strrchr(lv_name_new, '/')))
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lv_name_new = st + 1;
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if (!strncmp(lv_name_old, HISTORICAL_LV_PREFIX, strlen(HISTORICAL_LV_PREFIX))) {
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lv_name_old = lv_name_old + strlen(HISTORICAL_LV_PREFIX);
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historical = 1;
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}
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if (!strncmp(lv_name_new, HISTORICAL_LV_PREFIX, strlen(HISTORICAL_LV_PREFIX))) {
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if (historical)
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lv_name_new = lv_name_old + strlen(HISTORICAL_LV_PREFIX);
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else {
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log_error("Old name references live LV while "
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"new name is for historical LV.");
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return EINVALID_CMD_LINE;
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}
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}
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/* Check sanity of new name */
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maxlen = NAME_LEN - strlen(vg_name) - 3;
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if (strlen(lv_name_new) > maxlen) {
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log_error("New logical volume name \"%s\" may not exceed %"
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PRIsize_t " characters.", lv_name_new, maxlen);
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return EINVALID_CMD_LINE;
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}
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if (!*lv_name_new) {
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log_error("New logical volume name may not be blank");
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return EINVALID_CMD_LINE;
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}
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if (!apply_lvname_restrictions(lv_name_new)) {
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stack;
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return EINVALID_CMD_LINE;
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}
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if (!validate_name(lv_name_new)) {
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log_error("New logical volume name \"%s\" is invalid",
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lv_name_new);
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return EINVALID_CMD_LINE;
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}
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if (!strcmp(lv_name_old, lv_name_new)) {
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log_error("Old and new logical volume names must differ");
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return EINVALID_CMD_LINE;
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}
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lp.historical = historical;
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if (!(lp.lv_name_old = dm_pool_strdup(cmd->mem, lv_name_old)))
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return ECMD_FAILED;
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if (!(lp.lv_name_new = dm_pool_strdup(cmd->mem, lv_name_new)))
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return ECMD_FAILED;
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if (!(handle = init_processing_handle(cmd, NULL))) {
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log_error("Failed to initialize processing handle.");
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return ECMD_FAILED;
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}
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handle->custom_handle = &lp;
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ret = process_each_vg(cmd, 0, NULL, vg_name, NULL, READ_FOR_UPDATE, 0, handle,
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_lvrename_single);
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destroy_processing_handle(cmd, handle);
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return ret;
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}
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