diff options
Diffstat (limited to 'src/netaddress.h')
| -rw-r--r-- | src/netaddress.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/netaddress.h b/src/netaddress.h new file mode 100644 index 0000000000..fbc4d1a65f --- /dev/null +++ b/src/netaddress.h @@ -0,0 +1,170 @@ +// Copyright (c) 2009-2016 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_NETADDRESS_H +#define BITCOIN_NETADDRESS_H + +#if defined(HAVE_CONFIG_H) +#include "config/bitcoin-config.h" +#endif + +#include "compat.h" +#include "serialize.h" + +#include <stdint.h> +#include <string> +#include <vector> + +enum Network +{ + NET_UNROUTABLE = 0, + NET_IPV4, + NET_IPV6, + NET_TOR, + + NET_MAX, +}; + +/** IP address (IPv6, or IPv4 using mapped IPv6 range (::FFFF:0:0/96)) */ +class CNetAddr +{ + protected: + unsigned char ip[16]; // in network byte order + uint32_t scopeId; // for scoped/link-local ipv6 addresses + + public: + CNetAddr(); + CNetAddr(const struct in_addr& ipv4Addr); + void Init(); + void SetIP(const CNetAddr& ip); + + /** + * Set raw IPv4 or IPv6 address (in network byte order) + * @note Only NET_IPV4 and NET_IPV6 are allowed for network. + */ + void SetRaw(Network network, const uint8_t *data); + + bool SetSpecial(const std::string &strName); // for Tor addresses + bool IsIPv4() const; // IPv4 mapped address (::FFFF:0:0/96, 0.0.0.0/0) + bool IsIPv6() const; // IPv6 address (not mapped IPv4, not Tor) + bool IsRFC1918() const; // IPv4 private networks (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12) + bool IsRFC2544() const; // IPv4 inter-network communications (192.18.0.0/15) + bool IsRFC6598() const; // IPv4 ISP-level NAT (100.64.0.0/10) + bool IsRFC5737() const; // IPv4 documentation addresses (192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24) + bool IsRFC3849() const; // IPv6 documentation address (2001:0DB8::/32) + bool IsRFC3927() const; // IPv4 autoconfig (169.254.0.0/16) + bool IsRFC3964() const; // IPv6 6to4 tunnelling (2002::/16) + bool IsRFC4193() const; // IPv6 unique local (FC00::/7) + bool IsRFC4380() const; // IPv6 Teredo tunnelling (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 IsTor() const; + bool IsLocal() const; + bool IsRoutable() const; + bool IsValid() const; + enum Network GetNetwork() const; + std::string ToString() const; + std::string ToStringIP() const; + unsigned int GetByte(int n) const; + uint64_t GetHash() const; + bool GetInAddr(struct in_addr* pipv4Addr) const; + std::vector<unsigned char> GetGroup() const; + int GetReachabilityFrom(const CNetAddr *paddrPartner = NULL) const; + + CNetAddr(const struct in6_addr& pipv6Addr, const uint32_t scope = 0); + bool GetIn6Addr(struct in6_addr* pipv6Addr) const; + + 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); + + ADD_SERIALIZE_METHODS; + + template <typename Stream, typename Operation> + inline void SerializationOp(Stream& s, Operation ser_action) { + READWRITE(FLATDATA(ip)); + } + + friend class CSubNet; +}; + +class CSubNet +{ + protected: + /// Network (base) address + CNetAddr network; + /// Netmask, in network byte order + uint8_t netmask[16]; + /// Is this value valid? (only used to signal parse errors) + bool valid; + + public: + CSubNet(); + CSubNet(const CNetAddr &addr, int32_t mask); + CSubNet(const CNetAddr &addr, const CNetAddr &mask); + + //constructor for single ip subnet (<ipv4>/32 or <ipv6>/128) + explicit CSubNet(const CNetAddr &addr); + + bool Match(const CNetAddr &addr) const; + + std::string ToString() const; + bool IsValid() const; + + friend bool operator==(const CSubNet& a, const CSubNet& b); + friend bool operator!=(const CSubNet& a, const CSubNet& b); + friend bool operator<(const CSubNet& a, const CSubNet& b); + + ADD_SERIALIZE_METHODS; + + template <typename Stream, typename Operation> + inline void SerializationOp(Stream& s, Operation ser_action) { + READWRITE(network); + READWRITE(FLATDATA(netmask)); + READWRITE(FLATDATA(valid)); + } +}; + +/** 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); + void Init(); + void SetPort(unsigned short portIn); + unsigned short GetPort() const; + bool GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const; + bool SetSockAddr(const struct sockaddr* paddr); + 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<unsigned char> GetKey() const; + std::string ToString() const; + std::string ToStringPort() const; + std::string ToStringIPPort() const; + + CService(const struct in6_addr& ipv6Addr, unsigned short port); + CService(const struct sockaddr_in6& addr); + + ADD_SERIALIZE_METHODS; + + template <typename Stream, typename Operation> + inline void SerializationOp(Stream& s, Operation ser_action) { + READWRITE(FLATDATA(ip)); + unsigned short portN = htons(port); + READWRITE(FLATDATA(portN)); + if (ser_action.ForRead()) + port = ntohs(portN); + } +}; + +#endif // BITCOIN_NETADDRESS_H |