1 files changed, 86 insertions, 0 deletions
diff --git a/include/net/tc_act/tc_tunnel_key.h b/include/net/tc_act/tc_tunnel_key.h
new file mode 100644
index 000000000..879fe8cff
--- /dev/null
+++ b/include/net/tc_act/tc_tunnel_key.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2016, Amir Vadai <amir@vadai.me>
+ * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef __NET_TC_TUNNEL_KEY_H
+#define __NET_TC_TUNNEL_KEY_H
+
+#include <net/act_api.h>
+#include <linux/tc_act/tc_tunnel_key.h>
+#include <net/dst_metadata.h>
+
+struct tcf_tunnel_key_params {
+	struct rcu_head		rcu;
+	int			tcft_action;
+	struct metadata_dst     *tcft_enc_metadata;
+};
+
+struct tcf_tunnel_key {
+	struct tc_action	      common;
+	struct tcf_tunnel_key_params __rcu *params;
+};
+
+#define to_tunnel_key(a) ((struct tcf_tunnel_key *)a)
+
+static inline bool is_tcf_tunnel_set(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	struct tcf_tunnel_key *t = to_tunnel_key(a);
+	struct tcf_tunnel_key_params *params;
+
+	params = rcu_dereference_protected(t->params,
+					   lockdep_is_held(&a->tcfa_lock));
+	if (a->ops && a->ops->id == TCA_ID_TUNNEL_KEY)
+		return params->tcft_action == TCA_TUNNEL_KEY_ACT_SET;
+#endif
+	return false;
+}
+
+static inline bool is_tcf_tunnel_release(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	struct tcf_tunnel_key *t = to_tunnel_key(a);
+	struct tcf_tunnel_key_params *params;
+
+	params = rcu_dereference_protected(t->params,
+					   lockdep_is_held(&a->tcfa_lock));
+	if (a->ops && a->ops->id == TCA_ID_TUNNEL_KEY)
+		return params->tcft_action == TCA_TUNNEL_KEY_ACT_RELEASE;
+#endif
+	return false;
+}
+
+static inline struct ip_tunnel_info *tcf_tunnel_info(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	struct tcf_tunnel_key *t = to_tunnel_key(a);
+	struct tcf_tunnel_key_params *params;
+
+	params = rcu_dereference_protected(t->params,
+					   lockdep_is_held(&a->tcfa_lock));
+
+	return &params->tcft_enc_metadata->u.tun_info;
+#else
+	return NULL;
+#endif
+}
+
+static inline struct ip_tunnel_info *
+tcf_tunnel_info_copy(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	struct ip_tunnel_info *tun = tcf_tunnel_info(a);
+
+	if (tun) {
+		size_t tun_size = sizeof(*tun) + tun->options_len;
+		struct ip_tunnel_info *tun_copy = kmemdup(tun, tun_size,
+							  GFP_ATOMIC);
+
+		return tun_copy;
+	}
+#endif
+	return NULL;
+}
+#endif /* __NET_TC_TUNNEL_KEY_H */