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+/*
+ * Copyright (c) 2017 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.
+ */
+
+#ifndef __VOM_PREFIX_H__
+#define __VOM_PREFIX_H__
+
+#include <boost/asio/ip/address.hpp>
+
+#include "vom/enum_base.hpp"
+
+namespace VOM {
+/**
+ * Types belonging to Routing
+ */
+
+/**
+ * An L3 protocol can be used to construct a prefix that is used
+ * to match packets are part of a route.
+ */
+class l3_proto_t : public enum_base<l3_proto_t>
+{
+public:
+ const static l3_proto_t IPV4;
+ const static l3_proto_t IPV6;
+ const static l3_proto_t MPLS;
+
+ bool is_ipv4();
+ bool is_ipv6();
+
+ static const l3_proto_t& from_address(const boost::asio::ip::address& addr);
+
+private:
+ /**
+ * Private constructor taking the value and the string name
+ */
+ l3_proto_t(int v, const std::string& s);
+};
+
+/**
+ * A next-hop protocol describes the protocol of a peer to which packets
+ * are sent after matching a route.
+ */
+class nh_proto_t : public enum_base<nh_proto_t>
+{
+public:
+ const static nh_proto_t IPV4;
+ const static nh_proto_t IPV6;
+ const static nh_proto_t MPLS;
+ const static nh_proto_t ETHERNET;
+
+ static const nh_proto_t& from_address(const boost::asio::ip::address& addr);
+
+private:
+ /**
+ * Private constructor taking the value and the string name
+ */
+ nh_proto_t(int v, const std::string& s);
+};
+
+namespace route {
+/**
+ * type def the table-id
+ */
+typedef uint32_t table_id_t;
+
+/**
+ * The table-id for the default table
+ */
+const static table_id_t DEFAULT_TABLE = 0;
+
+/**
+ * A prefix defintion. Address + length
+ */
+class prefix_t
+{
+public:
+ /**
+ * Default Constructor - creates ::/0
+ */
+ prefix_t();
+ /**
+ * Constructor with address and length
+ */
+ prefix_t(const boost::asio::ip::address& addr, uint8_t len);
+ /**
+ * Constructor with just the address, this creates a
+ * host prefix
+ */
+ prefix_t(const boost::asio::ip::address& addr);
+
+ /**
+ * Constructor with string and length
+ */
+ prefix_t(const std::string& s, uint8_t len);
+ /**
+ * Copy Constructor
+ */
+ prefix_t(const prefix_t&);
+ /**
+ * Constructor with VPP API prefix representation
+ */
+ prefix_t(uint8_t is_ip6, uint8_t* addr, uint8_t len);
+ /**
+ * Destructor
+ */
+ ~prefix_t();
+
+ /**
+ * Get the address
+ */
+ const boost::asio::ip::address& address() const;
+
+ /**
+ * Get the network mask width
+ */
+ uint8_t mask_width() const;
+
+ /**
+ * Assignement
+ */
+ prefix_t& operator=(const prefix_t&);
+
+ /**
+ * Less than operator
+ */
+ bool operator<(const prefix_t& o) const;
+
+ /**
+ * equals operator
+ */
+ bool operator==(const prefix_t& o) const;
+
+ /**
+ * not equal opartor
+ */
+ bool operator!=(const prefix_t& o) const;
+
+ /**
+ * convert to string format for debug purposes
+ */
+ std::string to_string() const;
+
+ /**
+ * The all Zeros prefix
+ */
+ const static prefix_t ZERO;
+
+ /**
+ * The all Zeros v6 prefix
+ */
+ const static prefix_t ZEROv6;
+
+ /**
+ * Convert the prefix into VPP API parameters
+ */
+ void to_vpp(uint8_t* is_ip6, uint8_t* addr, uint8_t* len) const;
+
+ /**
+ * Return a address representation of the mask, e.g. 255.255.0.0
+ */
+ boost::asio::ip::address_v4 mask() const;
+
+ /**
+ * get the lowest address in the prefix
+ */
+ boost::asio::ip::address_v4 low() const;
+
+ /**
+ * Get the highest address in the prefix
+ */
+ boost::asio::ip::address_v4 high() const;
+
+ /**
+ * Get the L3 protocol
+ */
+ l3_proto_t l3_proto() const;
+
+private:
+ /**
+ * The address
+ */
+ boost::asio::ip::address m_addr;
+
+ /**
+ * The prefix length
+ */
+ uint8_t m_len;
+};
+};
+
+boost::asio::ip::address_v4 operator|(const boost::asio::ip::address_v4& addr1,
+ const boost::asio::ip::address_v4& addr2);
+
+boost::asio::ip::address_v4 operator&(const boost::asio::ip::address_v4& addr1,
+ const boost::asio::ip::address_v4& addr2);
+
+boost::asio::ip::address_v4 operator~(const boost::asio::ip::address_v4& addr1);
+
+/**
+ * Ostream printer for prefix_t
+ */
+std::ostream& operator<<(std::ostream& os, const route::prefix_t& pfx);
+
+/**
+ * Convert a boost address into a VPP bytes string
+ */
+void to_bytes(const boost::asio::ip::address& addr,
+ uint8_t* is_ip6,
+ uint8_t* array);
+void to_bytes(const boost::asio::ip::address_v4& addr, uint8_t* array);
+void to_bytes(const boost::asio::ip::address_v6& addr, uint8_t* array);
+
+/**
+ * Get the prefix mask length of a host route from the boost address
+ */
+uint32_t mask_width(const boost::asio::ip::address& addr);
+
+/**
+ * Convert a VPP byte stinrg into a boost addresss
+ */
+boost::asio::ip::address from_bytes(uint8_t is_ip6, uint8_t* array);
+};
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */
+
+#endif