1 files changed, 86 insertions, 0 deletions
diff --git a/libtransport/src/core/hicn_forwarder_interface.h b/libtransport/src/core/hicn_forwarder_interface.h
new file mode 100644
index 000000000..6969f4a6b
--- /dev/null
+++ b/libtransport/src/core/hicn_forwarder_interface.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2017-2019 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.
+ */
+
+#pragma once
+
+#include <hicn/transport/core/prefix.h>
+
+#include <core/forwarder_interface.h>
+#include <core/udp_socket_connector.h>
+
+#include <deque>
+
+namespace transport {
+
+namespace core {
+
+class HicnForwarderInterface
+    : public ForwarderInterface<HicnForwarderInterface, UdpSocketConnector> {
+  static constexpr uint8_t ack_code = 0xc2;
+  static constexpr uint8_t nack_code = 0xc3;
+
+ public:
+  union addressLight {
+    uint32_t ipv4;
+    struct in6_addr ipv6;
+  };
+
+  struct route_to_self_command {
+    uint8_t messageType;
+    uint8_t commandID;
+    uint16_t length;
+    uint32_t seqNum;
+    char symbolicOrConnid[16];
+    union addressLight address;
+    uint16_t cost;
+    uint8_t addressType;
+    uint8_t len;
+  };
+
+  using route_to_self_command = struct route_to_self_command;
+  using ConnectorType = UdpSocketConnector;
+
+  HicnForwarderInterface(UdpSocketConnector &connector);
+
+  ~HicnForwarderInterface();
+
+  void connect(bool is_consumer);
+
+  void registerRoute(Prefix &prefix);
+
+  std::uint16_t getMtu() { return interface_mtu; }
+
+  TRANSPORT_ALWAYS_INLINE static bool isControlMessageImpl(
+      const uint8_t *message) {
+    return message[0] == ack_code || message[0] == nack_code;
+  }
+
+  TRANSPORT_ALWAYS_INLINE void processControlMessageReplyImpl(
+      Packet::MemBufPtr &&packet_buffer) {
+    if (packet_buffer->data()[0] == nack_code) {
+      throw errors::RuntimeException(
+          "Received Nack message from hicn light forwarder.");
+    }
+  }
+
+  void closeConnection();
+
+ private:
+  static constexpr std::uint16_t interface_mtu = 1500;
+};
+
+}  // namespace core
+
+}  // namespace transport