// Copyright (c) 2009-2012 The Bitcoin developers // Distributed under the MIT/X11 software license, see the accompanying // file license.txt or http://www.opensource.org/licenses/mit-license.php. #ifndef BITCOIN_NETBASE_H #define BITCOIN_NETBASE_H #include #include #ifdef WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN 1 #ifndef NOMINMAX #define NOMINMAX #endif #include #include #include #else #include #include #include #include #include #include #endif #ifdef BSD #include #endif #include "serialize.h" #include "compat.h" extern int nConnectTimeout; #ifdef WIN32 // In MSVC, this is defined as a macro, undefine it to prevent a compile and link error #undef SetPort #endif /** IP address (IPv6, or IPv4 using mapped IPv6 range (::FFFF:0:0/96)) */ class CNetAddr { protected: unsigned char ip[16]; // in network byte order public: CNetAddr(); CNetAddr(const struct in_addr& ipv4Addr); explicit CNetAddr(const char *pszIp, bool fAllowLookup = false); explicit CNetAddr(const std::string &strIp, bool fAllowLookup = false); void Init(); void SetIP(const CNetAddr& ip); bool IsIPv4() const; // IPv4 mapped address (::FFFF:0:0/96, 0.0.0.0/0) bool IsRFC1918() const; // IPv4 private networks (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12) bool IsRFC3849() const; // IPv6 documentation address (2001:0DB8::/32) bool IsRFC3927() const; // IPv4 autoconfig (169.254.0.0/16) bool IsRFC3964() const; // IPv6 6to4 tunneling (2002::/16) bool IsRFC4193() const; // IPv6 unique local (FC00::/15) bool IsRFC4380() const; // IPv6 Teredo tunneling (2001::/32) bool IsRFC4843() const; // IPv6 ORCHID (2001:10::/28) bool IsRFC4862() const; // IPv6 autoconfig (FE80::/64) bool IsRFC6052() const; // IPv6 well-known prefix (64:FF9B::/96) bool IsRFC6145() const; // IPv6 IPv4-translated address (::FFFF:0:0:0/96) bool IsLocal() const; bool IsRoutable() const; bool IsValid() const; bool IsMulticast() const; std::string ToString() const; std::string ToStringIP() const; int GetByte(int n) const; int64 GetHash() const; bool GetInAddr(struct in_addr* pipv4Addr) const; std::vector GetGroup() const; void print() const; #ifdef USE_IPV6 CNetAddr(const struct in6_addr& pipv6Addr); bool GetIn6Addr(struct in6_addr* pipv6Addr) const; #endif friend bool operator==(const CNetAddr& a, const CNetAddr& b); friend bool operator!=(const CNetAddr& a, const CNetAddr& b); friend bool operator<(const CNetAddr& a, const CNetAddr& b); IMPLEMENT_SERIALIZE ( READWRITE(FLATDATA(ip)); ) }; /** A combination of a network address (CNetAddr) and a (TCP) port */ class CService : public CNetAddr { protected: unsigned short port; // host order public: CService(); CService(const CNetAddr& ip, unsigned short port); CService(const struct in_addr& ipv4Addr, unsigned short port); CService(const struct sockaddr_in& addr); explicit CService(const char *pszIpPort, int portDefault, bool fAllowLookup = false); explicit CService(const char *pszIpPort, bool fAllowLookup = false); explicit CService(const std::string& strIpPort, int portDefault, bool fAllowLookup = false); explicit CService(const std::string& strIpPort, bool fAllowLookup = false); void Init(); void SetPort(unsigned short portIn); unsigned short GetPort() const; bool GetSockAddr(struct sockaddr_in* paddr) const; friend bool operator==(const CService& a, const CService& b); friend bool operator!=(const CService& a, const CService& b); friend bool operator<(const CService& a, const CService& b); std::vector GetKey() const; std::string ToString() const; std::string ToStringPort() const; std::string ToStringIPPort() const; void print() const; #ifdef USE_IPV6 CService(const struct in6_addr& ipv6Addr, unsigned short port); bool GetSockAddr6(struct sockaddr_in6* paddr) const; CService(const struct sockaddr_in6& addr); #endif IMPLEMENT_SERIALIZE ( CService* pthis = const_cast(this); READWRITE(FLATDATA(ip)); unsigned short portN = htons(port); READWRITE(portN); if (fRead) pthis->port = ntohs(portN); ) }; bool LookupHost(const char *pszName, std::vector& vIP, unsigned int nMaxSolutions = 0, bool fAllowLookup = true); bool LookupHostNumeric(const char *pszName, std::vector& vIP, unsigned int nMaxSolutions = 0); bool Lookup(const char *pszName, CService& addr, int portDefault = 0, bool fAllowLookup = true); bool Lookup(const char *pszName, std::vector& vAddr, int portDefault = 0, bool fAllowLookup = true, unsigned int nMaxSolutions = 0); bool LookupNumeric(const char *pszName, CService& addr, int portDefault = 0); bool ConnectSocket(const CService &addr, SOCKET& hSocketRet, int nTimeout = nConnectTimeout); // Settings extern int fUseProxy; extern CService addrProxy; #endif