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+/*
+ * Copyright (c) 2020 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file strategy.h
+ * \brief hICN forwarding strategy
+ */
+#ifndef HICN_STRATEGY_H
+#define HICN_STRATEGY_H
+
+#include <hicn/core/name.h>
+#include <hicn/core/msgbuf.h>
+
+#include <hicn/strategies/load_balancer.h>
+#include <hicn/strategies/low_latency.h>
+#include <hicn/strategies/random.h>
+
+typedef enum {
+ STRATEGY_TYPE_UNDEFINED,
+ STRATEGY_TYPE_LOADBALANCER,
+ STRATEGY_TYPE_LOW_LATENCY,
+ STRATEGY_TYPE_RANDOM,
+ STRATEGY_TYPE_N
+} strategy_type_t;
+
+#define STRATEGY_TYPE_VALID(type) \
+ ((type != STRATEGY_TYPE_UNDEFINED) && (type != STRATEGY_TYPE_N))
+
+typedef union {
+ strategy_load_balancer_options_t load_balancer;
+ strategy_low_latency_options_t low_latency;
+ strategy_random_options_t random;
+} strategy_options_t;
+
+typedef union {
+ strategy_load_balancer_nexthop_state_t load_balancer;
+ strategy_low_latency_nexthop_state_t low_latency;
+ strategy_random_nexthop_state_t random;
+} strategy_nexthop_state_t;
+
+#define STRATEGY_NEXTHOP_STATE_EMPTY {{ 0 }}
+
+typedef union {
+ strategy_load_balancer_state_t load_balancer;
+ strategy_low_latency_state_t low_latency;
+ strategy_random_state_t random;
+} strategy_state_t;
+// XXX This has to be merged with nexthops
+// XXX How to avoid errors due to pool id reuse (eg on_data) ?
+
+typedef struct {
+ strategy_type_t type;
+ strategy_options_t options;
+ strategy_state_t state;
+} strategy_entry_t;
+
+
+#endif /* HICN_STRATEGY_H */