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/*
* 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/forwarder_interface.h>
#include <hicn/transport/core/prefix.h>
#include <hicn/transport/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
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