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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004 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 General Public License v.2.
*
* You should have received a copy of the GNU 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 "lib.h"
#include "metadata.h"
#include "import-export.h"
#include "lvm-string.h"
/*
* Bitsets held in the 'status' flags get
* converted into arrays of strings.
*/
struct flag {
const int mask;
const char *description;
};
static struct flag _vg_flags[] = {
{EXPORTED_VG, "EXPORTED"},
{RESIZEABLE_VG, "RESIZEABLE"},
{PARTIAL_VG, "PARTIAL"},
{PVMOVE, "PVMOVE"},
{LVM_READ, "READ"},
{LVM_WRITE, "WRITE"},
{CLUSTERED, "CLUSTERED"},
{SHARED, "SHARED"},
{PRECOMMITTED, NULL},
{0, NULL}
};
static struct flag _pv_flags[] = {
{ALLOCATABLE_PV, "ALLOCATABLE"},
{EXPORTED_VG, "EXPORTED"},
{0, NULL}
};
static struct flag _lv_flags[] = {
{LVM_READ, "READ"},
{LVM_WRITE, "WRITE"},
{FIXED_MINOR, "FIXED_MINOR"},
{VISIBLE_LV, "VISIBLE"},
{PVMOVE, "PVMOVE"},
{LOCKED, "LOCKED"},
{MIRROR_NOTSYNCED, "NOTSYNCED"},
{MIRROR_IMAGE, NULL},
{MIRROR_LOG, NULL},
{MIRRORED, NULL},
{VIRTUAL, NULL},
{SNAPSHOT, NULL},
{ACTIVATE_EXCL, NULL},
{0, NULL}
};
static struct flag *_get_flags(int type)
{
switch (type) {
case VG_FLAGS:
return _vg_flags;
case PV_FLAGS:
return _pv_flags;
case LV_FLAGS:
return _lv_flags;
}
log_err("Unknown flag set requested.");
return NULL;
}
/*
* Converts a bitset to an array of string values,
* using one of the tables defined at the top of
* the file.
*/
int print_flags(uint32_t status, int type, char *buffer, size_t size)
{
int f, first = 1;
struct flag *flags;
if (!(flags = _get_flags(type))) {
stack;
return 0;
}
if (!emit_to_buffer(&buffer, &size, "["))
return 0;
for (f = 0; flags[f].mask; f++) {
if (status & flags[f].mask) {
status &= ~flags[f].mask;
/* Internal-only flag? */
if (!flags[f].description)
continue;
if (!first) {
if (!emit_to_buffer(&buffer, &size, ", "))
return 0;
} else
first = 0;
if (!emit_to_buffer(&buffer, &size, "\"%s\"",
flags[f].description))
return 0;
}
}
if (!emit_to_buffer(&buffer, &size, "]"))
return 0;
if (status)
log_error("Metadata inconsistency: Not all flags successfully "
"exported.");
return 1;
}
int read_flags(uint32_t *status, int type, struct config_value *cv)
{
int f;
uint32_t s = 0;
struct flag *flags;
if (!(flags = _get_flags(type))) {
stack;
return 0;
}
if (cv->type == CFG_EMPTY_ARRAY)
goto out;
while (cv) {
if (cv->type != CFG_STRING) {
log_err("Status value is not a string.");
return 0;
}
for (f = 0; flags[f].description; f++)
if (!strcmp(flags[f].description, cv->v.str)) {
s |= flags[f].mask;
break;
}
if (!flags[f].description) {
log_err("Unknown status flag '%s'.", cv->v.str);
return 0;
}
cv = cv->next;
}
out:
*status = s;
return 1;
}
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