1 files changed, 60 insertions, 0 deletions
diff --git a/lib/filters/filter-deviceid.c b/lib/filters/filter-deviceid.c
new file mode 100644
index 000000000..ee58bf5af
--- /dev/null
+++ b/lib/filters/filter-deviceid.c
@@ -0,0 +1,60 @@
+/*
+ * 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_devices_file)
+		return 1;
+
+	if (cmd->filter_deviceid_skip)
+		return 1;
+
+	if (dev->flags & DEV_MATCHED_USE_ID)
+		return 1;
+	log_debug_devs("%s: Skipping (deviceid)", dev_name(dev));
+	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;
+}