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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"
#include "lib/commands/toolcontext.h"
static int _passes_deviceid_filter(struct cmd_context *cmd, struct dev_filter *f, struct device *dev, const char *use_filter_name)
{
if (!cmd->enable_device_ids)
return 1;
if (dev->flags & DEV_MATCHED_USE_ID)
return 1;
return 0;
}
static void _destroy_deviceid_filter(struct dev_filter *f)
{
if (f->use_count)
log_error(INTERNAL_ERROR "Destroying deviceid filter while in use %u times.", f->use_count);
free(f);
}
struct dev_filter *deviceid_filter_create(struct cmd_context *cmd)
{
struct dev_filter *f;
if (!(f = zalloc(sizeof(struct dev_filter)))) {
log_error("deviceid filter allocation failed");
return NULL;
}
f->passes_filter = _passes_deviceid_filter;
f->destroy = _destroy_deviceid_filter;
f->use_count = 0;
f->name = "deviceid";
log_debug_devs("deviceid filter initialised.");
return f;
}
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