zebra: traffic control state management

This allows Zebra to manage QDISC, TCLASS, TFILTER in kernel and do cleaning
jobs when it starts up.

Signed-off-by: Siger Yang <siger.yang@outlook.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/zebra/zebra_tc.h b/zebra/zebra_tc.h
new file mode 100644
index 0000000000..832972b713
--- /dev/null
+++ b/zebra/zebra_tc.h
@@ -0,0 +1,79 @@
+/*
+ * Zebra Traffic Control (TC) Data structures and definitions
+ * These are public definitions referenced by multiple files.
+ *
+ * Copyright (C) 2022 Shichu Yang
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ZEBRA_TC_H
+#define _ZEBRA_TC_H
+
+#include <zebra.h>
+#include "rt.h"
+#include "tc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct zebra_tc_qdisc {
+	int sock;
+
+	struct tc_qdisc qdisc;
+};
+
+struct zebra_tc_class {
+	int sock;
+
+	struct tc_class class;
+};
+
+struct zebra_tc_filter {
+	int sock;
+
+	struct tc_filter filter;
+};
+
+const char *tc_qdisc_kind2str(uint32_t type);
+enum tc_qdisc_kind tc_qdisc_str2kind(const char *type);
+
+uint32_t zebra_tc_qdisc_hash_key(const void *arg);
+bool zebra_tc_qdisc_hash_equal(const void *arg1, const void *arg2);
+void zebra_tc_qdisc_install(struct zebra_tc_qdisc *qdisc);
+void zebra_tc_qdisc_uninstall(struct zebra_tc_qdisc *qdisc);
+
+uint32_t zebra_tc_class_hash_key(const void *arg);
+bool zebra_tc_class_hash_equal(const void *arg1, const void *arg2);
+void zebra_tc_class_add(struct zebra_tc_class *class);
+void zebra_tc_class_delete(struct zebra_tc_class *class);
+
+const char *tc_filter_kind2str(uint32_t type);
+enum tc_qdisc_kind tc_filter_str2kind(const char *type);
+void zebra_tc_filter_add(struct zebra_tc_filter *filter);
+void zebra_tc_filter_delete(struct zebra_tc_filter *filter);
+
+void zebra_tc_filters_free(void *arg);
+uint32_t zebra_tc_filter_hash_key(const void *arg);
+bool zebra_tc_filter_hash_equal(const void *arg1, const void *arg2);
+
+void kernel_read_tc_qdisc(struct zebra_ns *zns);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZEBRA_TC_H */