Initial import

1 files changed, 98 insertions, 0 deletions

diff --git a/lib/route/qdisc_api.c b/lib/route/qdisc_api.c
new file mode 100644
index 0000000..ef4d07a
--- /dev/null
+++ b/lib/route/qdisc_api.c
@@ -0,0 +1,98 @@
+/*
+ * lib/route/qdisc_api.c            Queueing Discipline Module API
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
+ */
+
+/**
+ * @ingroup qdisc
+ * @defgroup qdisc_api Queueing Discipline Modules
+ * @{
+ */
+
+#include <netlink-local.h>
+#include <netlink-tc.h>
+#include <netlink/netlink.h>
+#include <netlink/utils.h>
+#include <netlink/route/link.h>
+#include <netlink/route/tc.h>
+#include <netlink/route/qdisc.h>
+#include <netlink/route/class.h>
+#include <netlink/route/classifier.h>
+#include <netlink/route/qdisc-modules.h>
+
+static struct rtnl_qdisc_ops *qdisc_ops_list;
+
+/**
+ * @name Module API
+ * @{
+ */
+
+/**
+ * Register a qdisc module
+ * @arg qops		qdisc module operations
+ */
+int rtnl_qdisc_register(struct rtnl_qdisc_ops *qops)
+{
+	struct rtnl_qdisc_ops *o, **op;
+
+	if (!qops->qo_kind[0])
+		BUG();
+
+	for (op = &qdisc_ops_list; (o = *op) != NULL; op = &o->qo_next)
+		if (!strcasecmp(qops->qo_kind, o->qo_kind))
+			return nl_errno(EEXIST);
+
+	qops->qo_next = NULL;
+	*op = qops;
+
+	return 0;
+}
+
+/**
+ * Unregister a qdisc module
+ * @arg qops		qdisc module operations
+ */
+int rtnl_qdisc_unregister(struct rtnl_qdisc_ops *qops)
+{
+	struct rtnl_qdisc_ops *o, **op;
+
+	for (op = &qdisc_ops_list; (o = *op) != NULL; op = &o->qo_next)
+		if (!strcasecmp(qops->qo_kind, o->qo_kind))
+			break;
+
+	if (!o)
+		return nl_errno(ENOENT);
+
+	*op = qops->qo_next;
+
+	return 0;
+}
+
+struct rtnl_qdisc_ops *__rtnl_qdisc_lookup_ops(const char *kind)
+{
+	struct rtnl_qdisc_ops *qops;
+
+	for (qops = qdisc_ops_list; qops; qops = qops->qo_next)
+		if (!strcmp(kind, qops->qo_kind))
+			return qops;
+
+	return NULL;
+}
+
+struct rtnl_qdisc_ops *rtnl_qdisc_lookup_ops(struct rtnl_qdisc *qdisc)
+{
+	if (!qdisc->q_ops)
+		qdisc->q_ops = __rtnl_qdisc_lookup_ops(qdisc->q_kind);
+
+	return qdisc->q_ops;
+}
+
+/** @} */
+
+/** @} */