mirror of
git://sourceware.org/git/lvm2.git
synced 2024-10-28 11:55:55 +03:00
4a624ca055
is active in the device-mapper. o Many operations can be carried out regardless of whether the VG is active or not. o vgscan does not activate anything - use vgchange. o Change lvrename to support renaming of active LVs. o Remove '//' appearing in some pathnames. o Dummy lv_check_segments() for compilation.
159 lines
2.6 KiB
C
159 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
|
*
|
|
* This file is released under the LGPL.
|
|
*/
|
|
|
|
#include "log.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 {
|
|
int mask;
|
|
char *description;
|
|
};
|
|
|
|
static struct flag _vg_flags[] = {
|
|
{EXPORTED_VG, "EXPORTED"},
|
|
{RESIZEABLE_VG, "RESIZEABLE"},
|
|
{CLUSTERED, "CLUSTERED"},
|
|
{SHARED, "SHARED"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct flag _pv_flags[] = {
|
|
{ALLOCATABLE_PV, "ALLOCATABLE"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct flag _lv_flags[] = {
|
|
{LVM_READ, "READ"},
|
|
{LVM_WRITE, "WRITE"},
|
|
{ALLOC_SIMPLE, "ALLOC_SIMPLE"},
|
|
{ALLOC_STRICT, "ALLOC_STRICT"},
|
|
{ALLOC_CONTIGUOUS, "ALLOC_CONTIGUOUS"},
|
|
{SNAPSHOT, "SNASHOT"},
|
|
{SNAPSHOT_ORG, "SNAPSHOT_ORIGIN"},
|
|
{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;
|
|
}
|
|
|
|
static int _emit(char **buffer, size_t *size, const char *fmt, ...)
|
|
{
|
|
size_t n;
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
n = vsnprintf(*buffer, *size, fmt, ap);
|
|
va_end(ap);
|
|
|
|
if (n < 0 || (n == *size))
|
|
return 0;
|
|
|
|
*buffer += n;
|
|
*size -= n;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* 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(&buffer, &size, "["))
|
|
return 0;
|
|
|
|
for (f = 0; flags[f].mask; f++) {
|
|
if (status & flags[f].mask) {
|
|
if (!first) {
|
|
if (!_emit(&buffer, &size, ", "))
|
|
return 0;
|
|
|
|
} else
|
|
first = 0;
|
|
|
|
if (!_emit(&buffer, &size, "\"%s\"",
|
|
flags[f].description))
|
|
return 0;
|
|
|
|
status &= ~flags[f].mask;
|
|
}
|
|
}
|
|
|
|
if (!_emit(&buffer, &size, "]"))
|
|
return 0;
|
|
|
|
if (status)
|
|
/* FIXME: agk is this the correct log level ? */
|
|
log_print("Not all flags were successfully exported, "
|
|
"possible bug.");
|
|
|
|
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;
|
|
}
|
|
|
|
while (cv) {
|
|
if (cv != 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)) {
|
|
(*status) &= flags[f].mask;
|
|
break;
|
|
}
|
|
|
|
if (!flags[f].description) {
|
|
log_err("Unknown status flag.");
|
|
return 0;
|
|
}
|
|
|
|
cv = cv->next;
|
|
}
|
|
|
|
*status = s;
|
|
return 1;
|
|
}
|