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b4402bd821
The exported VG checking/enforcement was scattered and inconsistent. This centralizes it and makes it consistent, following the existing approach for foreign and shared VGs/PVs, which are very similar to exported VGs/PVs. The access policy that now applies to foreign/shared/exported VGs/PVs, is that if a foreign/shared/exported VG/PV is named on the command line (i.e. explicitly requested by the user), and the command is not permitted to operate on it because it is foreign/shared/exported, then an access error is reported and the command exits with an error. But, if the command is processing all VGs/PVs, and happens to come across a foreign/shared/exported VG/PV (that is not explicitly named on the command line), then the command silently skips it and does not produce an error. A command using tags or --select handles inaccessible VGs/PVs the same way as a command processing all VGs/PVs, and will not report/return errors if these inaccessible VGs/PVs exist. The new policy fixes the exit codes on a somewhat random set of commands that previously exited with an error if they were looking at all VGs/PVs and an exported VG existed on the system. There should be no change to which commands are allowed/disallowed on exported VGs/PVs. Certain LV commands (lvs/lvdisplay/lvscan) would previously not display LVs from an exported VG (for unknown reasons). This has not changed. The lvm fullreport command would previously report info about an exported VG but not about the LVs in it. This has changed to include all info from the exported VG.
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2009 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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static int _vgimport_single(struct cmd_context *cmd,
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const char *vg_name,
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struct volume_group *vg,
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struct processing_handle *handle __attribute__((unused)))
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{
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struct pv_list *pvl;
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struct physical_volume *pv;
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if (!vg_is_exported(vg)) {
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log_error("Volume group \"%s\" is not exported", vg_name);
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goto bad;
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}
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if (vg_status(vg) & PARTIAL_VG) {
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log_error("Volume group \"%s\" is partially missing", vg_name);
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goto bad;
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}
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if (!archive(vg))
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goto_bad;
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vg->status &= ~EXPORTED_VG;
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if (!vg_is_shared(vg))
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vg->system_id = cmd->system_id ? dm_pool_strdup(vg->vgmem, cmd->system_id) : NULL;
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dm_list_iterate_items(pvl, &vg->pvs) {
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pv = pvl->pv;
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pv->status &= ~EXPORTED_VG;
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}
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if (!vg_write(vg) || !vg_commit(vg))
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goto_bad;
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backup(vg);
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log_print_unless_silent("Volume group \"%s\" successfully imported", vg->name);
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return ECMD_PROCESSED;
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bad:
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return ECMD_FAILED;
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}
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int vgimport(struct cmd_context *cmd, int argc, char **argv)
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{
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if (!argc && !arg_is_set(cmd, all_ARG) && !arg_is_set(cmd, select_ARG)) {
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log_error("Please supply volume groups or -S for selection or use -a for all.");
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return EINVALID_CMD_LINE;
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}
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if (arg_is_set(cmd, all_ARG) && (argc || arg_is_set(cmd, select_ARG))) {
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log_error("No arguments permitted when using -a for all.");
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return EINVALID_CMD_LINE;
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}
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if (arg_is_set(cmd, force_ARG)) {
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/*
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* The volume group cannot be repaired unless it is first
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* imported. If we don't allow the user a way to import the
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* VG while it is 'partial', then we will have created a
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* circular dependency.
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*
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* The reason we don't just simply set 'handles_missing_pvs'
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* by default is that we want to guard against the case
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* where the user simply forgot to move one or more disks in
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* the VG before running 'vgimport'.
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*/
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log_warn("WARNING: Volume groups with missing PVs will be imported with --force.");
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cmd->handles_missing_pvs = 1;
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}
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return process_each_vg(cmd, argc, argv, NULL, NULL, READ_FOR_UPDATE,
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0, NULL, &_vgimport_single);
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}
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