mirror of
git://sourceware.org/git/lvm2.git
synced 2024-10-13 15:22:08 +03:00
139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/*
|
|
* Copyright (C) 2014 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "base/memory/zalloc.h"
|
|
#include "lib/misc/lib.h"
|
|
#include "lib/filters/filter.h"
|
|
#include "lib/commands/toolcontext.h"
|
|
|
|
#ifdef UDEV_SYNC_SUPPORT
|
|
#include <libudev.h>
|
|
#include "lib/device/dev-ext-udev-constants.h"
|
|
#endif
|
|
|
|
#ifdef __linux__
|
|
|
|
#ifdef UDEV_SYNC_SUPPORT
|
|
static int _udev_dev_is_fwraid(struct device *dev)
|
|
{
|
|
const char *value;
|
|
|
|
value = udev_device_get_property_value((struct udev_device *)dev->ext.handle, DEV_EXT_UDEV_BLKID_TYPE);
|
|
if (value && strcmp(value, DEV_EXT_UDEV_BLKID_TYPE_SW_RAID) && strstr(value, DEV_EXT_UDEV_BLKID_TYPE_RAID_SUFFIX))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static int _udev_dev_is_fwraid(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int _native_dev_is_fwraid(struct device *dev)
|
|
{
|
|
log_verbose("%s: Firmware RAID detection is not supported by LVM natively. "
|
|
"Skipping firmware raid detection. ", dev_name(dev));
|
|
return 0;
|
|
}
|
|
|
|
static int _dev_is_fwraid(struct device *dev)
|
|
{
|
|
if (dev->ext.src == DEV_EXT_NONE)
|
|
return _native_dev_is_fwraid(dev);
|
|
|
|
if (dev->ext.src == DEV_EXT_UDEV)
|
|
return _udev_dev_is_fwraid(dev);
|
|
|
|
log_error(INTERNAL_ERROR "Missing hook for firmware RAID recognition "
|
|
"using external device info source %s", dev_ext_name(dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define MSG_SKIPPING "%s: Skipping firmware RAID component device"
|
|
|
|
static int _ignore_fwraid(struct cmd_context *cmd, struct dev_filter *f __attribute__((unused)),
|
|
struct device *dev, const char *use_filter_name)
|
|
{
|
|
int ret;
|
|
|
|
if (cmd->filter_nodata_only)
|
|
return 1;
|
|
|
|
dev->filtered_flags &= ~DEV_FILTERED_FWRAID;
|
|
|
|
if (!fwraid_filtering())
|
|
return 1;
|
|
|
|
ret = _dev_is_fwraid(dev);
|
|
|
|
if (ret == 1) {
|
|
if (dev->ext.src == DEV_EXT_NONE)
|
|
log_debug_devs(MSG_SKIPPING, dev_name(dev));
|
|
else
|
|
log_debug_devs(MSG_SKIPPING " [%s:%p]", dev_name(dev),
|
|
dev_ext_name(dev), dev->ext.handle);
|
|
dev->filtered_flags |= DEV_FILTERED_FWRAID;
|
|
return 0;
|
|
}
|
|
|
|
if (ret < 0) {
|
|
log_debug_devs("%s: Skipping: error in firmware RAID component detection",
|
|
dev_name(dev));
|
|
dev->filtered_flags |= DEV_FILTERED_FWRAID;
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void _destroy(struct dev_filter *f)
|
|
{
|
|
if (f->use_count)
|
|
log_error(INTERNAL_ERROR "Destroying firmware RAID filter while in use %u times.", f->use_count);
|
|
|
|
free(f);
|
|
}
|
|
|
|
struct dev_filter *fwraid_filter_create(struct dev_types *dt __attribute__((unused)))
|
|
{
|
|
struct dev_filter *f;
|
|
|
|
if (!(f = zalloc(sizeof(*f)))) {
|
|
log_error("Firmware RAID filter allocation failed");
|
|
return NULL;
|
|
}
|
|
|
|
f->passes_filter = _ignore_fwraid;
|
|
f->destroy = _destroy;
|
|
f->use_count = 0;
|
|
f->private = NULL;
|
|
f->name = "fwraid";
|
|
|
|
log_debug_devs("Firmware RAID filter initialised.");
|
|
|
|
return f;
|
|
}
|
|
|
|
#else
|
|
|
|
struct dev_filter *fwraid_filter_create(struct dev_types *dt __attribute__((unused)))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#endif
|