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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2012 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"
#define MSG_SKIPPING "%s: Skipping: Partition table signature found"
static int _passes_partitioned_filter(struct cmd_context *cmd, struct dev_filter *f, struct device *dev, const char *use_filter_name)
{
struct dev_types *dt = (struct dev_types *) f->private;
int ret;
ret = dev_is_partitioned(dt, dev);
if (ret == -EAGAIN) {
/* let pass, call again after scan */
log_debug_devs("filter partitioned deferred %s", dev_name(dev));
dev->flags |= DEV_FILTER_AFTER_SCAN;
return 1;
}
if (ret) {
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);
return 0;
}
return 1;
}
static void _partitioned_filter_destroy(struct dev_filter *f)
{
if (f->use_count)
log_error(INTERNAL_ERROR "Destroying partitioned filter while in use %u times.", f->use_count);
free(f);
}
struct dev_filter *partitioned_filter_create(struct dev_types *dt)
{
struct dev_filter *f;
if (!(f = zalloc(sizeof(struct dev_filter)))) {
log_error("Partitioned filter allocation failed");
return NULL;
}
f->passes_filter = _passes_partitioned_filter;
f->destroy = _partitioned_filter_destroy;
f->use_count = 0;
f->private = dt;
f->name = "partitioned";
log_debug_devs("Partitioned filter initialised.");
return f;
}
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