be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
244 lines
9.8 KiB
C++
244 lines
9.8 KiB
C++
// Copyright (c) 2009-2013 The Bitcoin Core developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#ifndef BITCOIN_NETBASE_H
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#define BITCOIN_NETBASE_H
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#if defined(HAVE_CONFIG_H)
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#include "config/bitcoin-config.h"
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#endif
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#include "compat.h"
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#include "serialize.h"
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#include "util/asmap.h"
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#include <stdint.h>
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#include <string>
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#include <vector>
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extern int nConnectTimeout;
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extern bool fNameLookup;
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/** -timeout default */
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static const int DEFAULT_CONNECT_TIMEOUT = 5000;
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#ifdef _WIN32
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// In MSVC, this is defined as a macro, undefine it to prevent a compile and link error
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#undef SetPort
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#endif
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enum Network
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{
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NET_UNROUTABLE = 0,
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NET_IPV4,
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NET_IPV6,
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NET_ONION,
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NET_INTERNAL,
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NET_MAX,
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};
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/** IP address (IPv6, or IPv4 using mapped IPv6 range (::FFFF:0:0/96)) */
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class CNetAddr
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{
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protected:
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unsigned char ip[16]; // in network byte order
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public:
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CNetAddr();
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CNetAddr(const struct in_addr& ipv4Addr);
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explicit CNetAddr(const char *pszIp, bool fAllowLookup = false);
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explicit CNetAddr(const std::string &strIp, bool fAllowLookup = false);
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void Init();
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void SetIP(const CNetAddr& ip);
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/**
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* Set raw IPv4 or IPv6 address (in network byte order)
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* @note Only NET_IPV4 and NET_IPV6 are allowed for network.
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*/
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void SetRaw(Network network, const uint8_t *data);
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bool SetSpecial(const std::string &strName); // for Tor addresses
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bool IsIPv4() const; // IPv4 mapped address (::FFFF:0:0/96, 0.0.0.0/0)
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bool IsIPv6() const; // IPv6 address (not mapped IPv4, not Tor)
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bool IsRFC1918() const; // IPv4 private networks (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12)
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bool IsRFC2544() const; // IPv4 inter-network communications (192.18.0.0/15)
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bool IsRFC6598() const; // IPv4 ISP-level NAT (100.64.0.0/10)
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bool IsRFC5737() const; // IPv4 documentation addresses (192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24)
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bool IsRFC3849() const; // IPv6 documentation address (2001:0DB8::/32)
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bool IsRFC3927() const; // IPv4 autoconfig (169.254.0.0/16)
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bool IsRFC3964() const; // IPv6 6to4 tunnelling (2002::/16)
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bool IsRFC4193() const; // IPv6 unique local (FC00::/7)
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bool IsRFC4380() const; // IPv6 Teredo tunnelling (2001::/32)
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bool IsRFC4843() const; // IPv6 ORCHID (2001:10::/28)
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bool IsRFC4862() const; // IPv6 autoconfig (FE80::/64)
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bool IsRFC6052() const; // IPv6 well-known prefix (64:FF9B::/96)
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bool IsRFC6145() const; // IPv6 IPv4-translated address (::FFFF:0:0:0/96)
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bool IsTor() const;
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bool IsLocal() const;
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bool IsRoutable() const;
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bool IsInternal() const;
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bool IsValid() const;
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bool IsMulticast() const;
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enum Network GetNetwork() const;
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std::string ToString() const;
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std::string ToStringIP() const;
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unsigned int GetByte(int n) const;
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uint64_t GetHash() const;
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bool GetInAddr(struct in_addr* pipv4Addr) const;
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uint32_t GetNetClass() const;
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//! For IPv4, mapped IPv4, SIIT translated IPv4, Teredo, 6to4 tunneled addresses, return the relevant IPv4 address as a uint32.
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uint32_t GetLinkedIPv4() const;
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//! Whether this address has a linked IPv4 address (see GetLinkedIPv4()).
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bool HasLinkedIPv4() const;
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// The AS on the BGP path to the node we use to diversify
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// peers in AddrMan bucketing based on the AS infrastructure.
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// The ip->AS mapping depends on how asmap is constructed.
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uint32_t GetMappedAS(const std::vector<bool> &asmap) const;
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std::vector<unsigned char> GetGroup(const std::vector<bool> &asmap) const;
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int GetReachabilityFrom(const CNetAddr *paddrPartner = NULL) const;
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CNetAddr(const struct in6_addr& pipv6Addr);
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bool GetIn6Addr(struct in6_addr* pipv6Addr) const;
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friend bool operator==(const CNetAddr& a, const CNetAddr& b);
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friend bool operator!=(const CNetAddr& a, const CNetAddr& b);
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friend bool operator<(const CNetAddr& a, const CNetAddr& b);
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action) {
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READWRITE(FLATDATA(ip));
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}
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friend class CSubNet;
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};
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class CSubNet
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{
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protected:
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/// Network (base) address
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CNetAddr network;
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/// Netmask, in network byte order
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uint8_t netmask[16];
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/// Is this value valid? (only used to signal parse errors)
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bool valid;
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public:
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CSubNet();
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explicit CSubNet(const std::string &strSubnet, bool fAllowLookup = false);
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bool Match(const CNetAddr &addr) const;
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std::string ToString() const;
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bool IsValid() const;
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friend bool operator==(const CSubNet& a, const CSubNet& b);
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friend bool operator!=(const CSubNet& a, const CSubNet& b);
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friend bool operator<(const CSubNet& a, const CSubNet& b);
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};
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/** A combination of a network address (CNetAddr) and a (TCP) port */
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class CService : public CNetAddr
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{
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protected:
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unsigned short port; // host order
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public:
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CService();
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CService(const CNetAddr& ip, unsigned short port);
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CService(const struct in_addr& ipv4Addr, unsigned short port);
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CService(const struct sockaddr_in& addr);
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explicit CService(const char *pszIpPort, int portDefault, bool fAllowLookup = false);
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explicit CService(const char *pszIpPort, bool fAllowLookup = false);
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explicit CService(const std::string& strIpPort, int portDefault, bool fAllowLookup = false);
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explicit CService(const std::string& strIpPort, bool fAllowLookup = false);
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void Init();
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void SetPort(unsigned short portIn);
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unsigned short GetPort() const;
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bool GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const;
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bool SetSockAddr(const struct sockaddr* paddr);
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friend bool operator==(const CService& a, const CService& b);
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friend bool operator!=(const CService& a, const CService& b);
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friend bool operator<(const CService& a, const CService& b);
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std::vector<unsigned char> GetKey() const;
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std::string ToString() const;
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std::string ToStringPort() const;
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std::string ToStringIPPort() const;
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CService(const struct in6_addr& ipv6Addr, unsigned short port);
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CService(const struct sockaddr_in6& addr);
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action) {
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READWRITE(FLATDATA(ip));
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unsigned short portN = htons(port);
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READWRITE(FLATDATA(portN));
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if (ser_action.ForRead())
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port = ntohs(portN);
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}
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};
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class proxyType
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{
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public:
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proxyType(): randomize_credentials(false) {}
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proxyType(const CService &proxy, bool randomize_credentials=false): proxy(proxy), randomize_credentials(randomize_credentials) {}
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bool IsValid() const { return proxy.IsValid(); }
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CService proxy;
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bool randomize_credentials;
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};
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enum Network ParseNetwork(std::string net);
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std::string GetNetworkName(enum Network net);
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void SplitHostPort(std::string in, int &portOut, std::string &hostOut);
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bool SetProxy(enum Network net, const proxyType &addrProxy);
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bool GetProxy(enum Network net, proxyType &proxyInfoOut);
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bool IsProxy(const CNetAddr &addr);
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bool SetNameProxy(const proxyType &addrProxy);
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bool HaveNameProxy();
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bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions = 0, bool fAllowLookup = true);
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bool Lookup(const char *pszName, CService& addr, int portDefault = 0, bool fAllowLookup = true);
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bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault = 0, bool fAllowLookup = true, unsigned int nMaxSolutions = 0);
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bool LookupNumeric(const char *pszName, CService& addr, int portDefault = 0);
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bool ConnectSocket(const CService &addr, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed = 0);
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bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout, bool *outProxyConnectionFailed = 0);
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/** Return readable error string for a network error code */
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std::string NetworkErrorString(int err);
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/** Close socket and set hSocket to INVALID_SOCKET */
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bool CloseSocket(SOCKET& hSocket);
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/** Disable or enable blocking-mode for a socket */
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bool SetSocketNonBlocking(SOCKET& hSocket, bool fNonBlocking);
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/**
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* Convert milliseconds to a struct timeval for e.g. select.
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*/
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struct timeval MillisToTimeval(int64_t nTimeout);
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bool SanityCheckASMap(const std::vector<bool>& asmap);
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#endif // BITCOIN_NETBASE_H
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