1 files changed, 96 insertions, 0 deletions
diff --git a/src/nvme/filters.h b/src/nvme/filters.h
new file mode 100644
index 0000000..49bbeea
--- /dev/null
+++ b/src/nvme/filters.h
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/*
+ * This file is part of libnvme.
+ * Copyright (c) 2020 Western Digital Corporation or its affiliates.
+ *
+ * Authors: Keith Busch <keith.busch@wdc.com>
+ */
+
+#ifndef _LIBNVME_FILTERS_H
+#define _LIBNVME_FILTERS_H
+
+#include <dirent.h>
+#include "tree.h"
+
+/**
+ * DOC: filters.h
+ *
+ * libnvme directory filter
+ */
+
+/**
+ * nvme_namespace_filter() - Filter for namespaces
+ * @d: dirent to check
+ *
+ * Return: 1 if @d matches, 0 otherwise
+ */
+int nvme_namespace_filter(const struct dirent *d);
+
+/**
+ * nvme_paths_filter() - Filter for paths
+ * @d: dirent to check
+ *
+ * Return: 1 if @d matches, 0 otherwise
+ */
+int nvme_paths_filter(const struct dirent *d);
+
+/**
+ * nvme_ctrls_filter() - Filter for controllers
+ * @d: dirent to check
+ *
+ * Return: 1 if @d matches, 0 otherwise
+ */
+int nvme_ctrls_filter(const struct dirent *d);
+
+/**
+ * nvme_subsys_filter() - Filter for subsystems
+ * @d: dirent to check
+ *
+ * Return: 1 if @d matches, 0 otherwise
+ */
+int nvme_subsys_filter(const struct dirent *d);
+
+/**
+ * nvme_scan_subsystems() - Scan for subsystems
+ * @subsys: Pointer to array of dirents
+ *
+ * Return: number of entries in @subsys
+ */
+int nvme_scan_subsystems(struct dirent ***subsys);
+
+/**
+ * nvme_scan_subsystem_namespaces() - Scan for namespaces in a subsystem
+ * @s: Subsystem to scan
+ * @ns: Pointer to array of dirents
+ *
+ * Return: number of entries in @ns
+ */
+int nvme_scan_subsystem_namespaces(nvme_subsystem_t s, struct dirent ***ns);
+
+/**
+ * nvme_scan_ctrls() - Scan for controllers
+ * @ctrls: Pointer to array of dirents
+ *
+ * Return: number of entries in @ctrls
+ */
+int nvme_scan_ctrls(struct dirent ***ctrls);
+
+/**
+ * nvme_scan_ctrl_namespace_paths() - Scan for namespace paths in a controller
+ * @c: Controller to scan
+ * @paths: Pointer to array of dirents
+ *
+ * Return: number of entries in @paths
+ */
+int nvme_scan_ctrl_namespace_paths(nvme_ctrl_t c, struct dirent ***paths);
+
+/**
+ * nvme_scan_ctrl_namespaces() - Scan for namespaces in a controller
+ * @c: Controller to scan
+ * @ns: Pointer to array of dirents
+ *
+ * Return: number of entries in @ns
+ */
+int nvme_scan_ctrl_namespaces(nvme_ctrl_t c, struct dirent ***ns);
+
+#endif /* _LIBNVME_FILTERS_H */