ceph/src/msg/async/dpdk/ip_types.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 /*
   3  * This file is open source software, licensed to you under the terms
   4  * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
   5  * distributed with this work for additional information regarding copyright
   6  * ownership.  You may not use this file except in compliance with the License.
   7  *
   8  * You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied.  See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19 /*
  20  * Copyright (C) 2014 Cloudius Systems, Ltd.
  21  *
  22  */
  23 /*
  24  * Ceph - scalable distributed file system
  25  *
  26  * Copyright (C) 2015 XSky <haomai@xsky.com>
  27  *
  28  * Author: Haomai Wang <haomaiwang@gmail.com>
  29  *
  30  * This is free software; you can redistribute it and/or
  31  * modify it under the terms of the GNU Lesser General Public
  32  * License version 2.1, as published by the Free Software
  33  * Foundation.  See file COPYING.
  34  *
  35  */
  36
  37 #ifndef CEPH_IP_TYPES_H_H
  38 #define CEPH_IP_TYPES_H_H
  39
  40 #include <boost/asio/ip/address_v4.hpp>
  41 #include <string>
  42
  43 class Packet;
  44 class ethernet_address;
  45 using resolution_cb = std::function<void (const ethernet_address&, Packet, int)>;
  46
  47 struct ipv4_addr {
  48   uint32_t ip;
  49   uint16_t port;
  50
  51   ipv4_addr() : ip(0), port(0) {}
  52   ipv4_addr(uint32_t ip, uint16_t port) : ip(ip), port(port) {}
  53   ipv4_addr(uint16_t port) : ip(0), port(port) {}
  54   ipv4_addr(const std::string &addr);
  55   ipv4_addr(const std::string &addr, uint16_t port);
  56
  57   ipv4_addr(const entity_addr_t &ad) {
  58     ip = ntoh(ad.in4_addr().sin_addr.s_addr);
  59     port = ad.get_port();
  60   }
  61
  62   ipv4_addr(entity_addr_t &&addr) : ipv4_addr(addr) {}
  63 };
  64
  65 struct ipv4_address {
  66   ipv4_address() : ip(0) {}
  67   explicit ipv4_address(uint32_t ip) : ip(ip) {}
  68   explicit ipv4_address(const std::string& addr) {
  69     ip = static_cast<uint32_t>(boost::asio::ip::address_v4::from_string(addr).to_ulong());
  70   }
  71   ipv4_address(ipv4_addr addr) {
  72     ip = addr.ip;
  73   }
  74
  75   uint32_t ip;
  76
  77   ipv4_address hton() {
  78     ipv4_address addr;
  79     addr.ip = ::hton(ip);
  80     return addr;
  81   }
  82   ipv4_address ntoh() {
  83     ipv4_address addr;
  84     addr.ip = ::ntoh(ip);
  85     return addr;
  86   }
  87
  88   friend bool operator==(ipv4_address x, ipv4_address y) {
  89     return x.ip == y.ip;
  90   }
  91   friend bool operator!=(ipv4_address x, ipv4_address y) {
  92     return x.ip != y.ip;
  93   }
  94 } __attribute__((packed));
  95
  96 static inline bool is_unspecified(ipv4_address addr) { return addr.ip == 0; }
  97
  98 std::ostream& operator<<(std::ostream& os, const ipv4_address& a);
  99
 100 namespace std {
 101
 102   template <>
 103   struct hash<ipv4_address> {
 104     size_t operator()(ipv4_address a) const { return a.ip; }
 105   };
 106
 107 }
 108
 109 #endif //CEPH_IP_TYPES_H_H