Browse Source
0.149e9d644net: fixup nits (Cory Fields)8945384net: Have LookupNumeric return a CService directly (Cory Fields)21ba407net: narrow include scope after moving to netaddress (Cory Fields)21e5b96net: move CNetAddr/CService/CSubNet out of netbase (Cory Fields)1017b8anet: Add direct tests for new CSubNet constructors (Cory Fields)b6c3ff3net: Split resolving out of CSubNet (Cory Fields)f96c7c4net: Split resolving out of CService (Cory Fields)31d6b1dnet: Split resolving out of CNetAddr (Cory Fields)
Wladimir J. van der Laan
8 years ago
21 changed files with 1246 additions and 1136 deletions
@ -0,0 +1,716 @@
@@ -0,0 +1,716 @@
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// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2015 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifdef HAVE_CONFIG_H |
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#include "config/bitcoin-config.h" |
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#endif |
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#include "netaddress.h" |
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#include "hash.h" |
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#include "utilstrencodings.h" |
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#include "tinyformat.h" |
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static const unsigned char pchIPv4[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff }; |
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static const unsigned char pchOnionCat[] = {0xFD,0x87,0xD8,0x7E,0xEB,0x43}; |
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void CNetAddr::Init() |
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{ |
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memset(ip, 0, sizeof(ip)); |
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scopeId = 0; |
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} |
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void CNetAddr::SetIP(const CNetAddr& ipIn) |
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{ |
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memcpy(ip, ipIn.ip, sizeof(ip)); |
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} |
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void CNetAddr::SetRaw(Network network, const uint8_t *ip_in) |
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{ |
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switch(network) |
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{ |
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case NET_IPV4: |
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memcpy(ip, pchIPv4, 12); |
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memcpy(ip+12, ip_in, 4); |
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break; |
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case NET_IPV6: |
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memcpy(ip, ip_in, 16); |
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break; |
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default: |
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assert(!"invalid network"); |
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} |
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} |
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bool CNetAddr::SetSpecial(const std::string &strName) |
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{ |
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if (strName.size()>6 && strName.substr(strName.size() - 6, 6) == ".onion") { |
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std::vector<unsigned char> vchAddr = DecodeBase32(strName.substr(0, strName.size() - 6).c_str()); |
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if (vchAddr.size() != 16-sizeof(pchOnionCat)) |
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return false; |
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memcpy(ip, pchOnionCat, sizeof(pchOnionCat)); |
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for (unsigned int i=0; i<16-sizeof(pchOnionCat); i++) |
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ip[i + sizeof(pchOnionCat)] = vchAddr[i]; |
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return true; |
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} |
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return false; |
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} |
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CNetAddr::CNetAddr() |
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{ |
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Init(); |
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} |
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CNetAddr::CNetAddr(const struct in_addr& ipv4Addr) |
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{ |
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SetRaw(NET_IPV4, (const uint8_t*)&ipv4Addr); |
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} |
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CNetAddr::CNetAddr(const struct in6_addr& ipv6Addr, const uint32_t scope) |
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{ |
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SetRaw(NET_IPV6, (const uint8_t*)&ipv6Addr); |
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scopeId = scope; |
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} |
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unsigned int CNetAddr::GetByte(int n) const |
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{ |
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return ip[15-n]; |
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} |
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bool CNetAddr::IsIPv4() const |
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{ |
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return (memcmp(ip, pchIPv4, sizeof(pchIPv4)) == 0); |
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} |
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bool CNetAddr::IsIPv6() const |
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{ |
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return (!IsIPv4() && !IsTor()); |
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} |
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bool CNetAddr::IsRFC1918() const |
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{ |
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return IsIPv4() && ( |
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GetByte(3) == 10 || |
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(GetByte(3) == 192 && GetByte(2) == 168) || |
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(GetByte(3) == 172 && (GetByte(2) >= 16 && GetByte(2) <= 31))); |
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} |
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bool CNetAddr::IsRFC2544() const |
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{ |
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return IsIPv4() && GetByte(3) == 198 && (GetByte(2) == 18 || GetByte(2) == 19); |
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} |
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bool CNetAddr::IsRFC3927() const |
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{ |
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return IsIPv4() && (GetByte(3) == 169 && GetByte(2) == 254); |
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} |
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bool CNetAddr::IsRFC6598() const |
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{ |
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return IsIPv4() && GetByte(3) == 100 && GetByte(2) >= 64 && GetByte(2) <= 127; |
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} |
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bool CNetAddr::IsRFC5737() const |
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{ |
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return IsIPv4() && ((GetByte(3) == 192 && GetByte(2) == 0 && GetByte(1) == 2) || |
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(GetByte(3) == 198 && GetByte(2) == 51 && GetByte(1) == 100) || |
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(GetByte(3) == 203 && GetByte(2) == 0 && GetByte(1) == 113)); |
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} |
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bool CNetAddr::IsRFC3849() const |
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{ |
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return GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x0D && GetByte(12) == 0xB8; |
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} |
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bool CNetAddr::IsRFC3964() const |
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{ |
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return (GetByte(15) == 0x20 && GetByte(14) == 0x02); |
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} |
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bool CNetAddr::IsRFC6052() const |
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{ |
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static const unsigned char pchRFC6052[] = {0,0x64,0xFF,0x9B,0,0,0,0,0,0,0,0}; |
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return (memcmp(ip, pchRFC6052, sizeof(pchRFC6052)) == 0); |
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} |
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bool CNetAddr::IsRFC4380() const |
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{ |
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return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0 && GetByte(12) == 0); |
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} |
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bool CNetAddr::IsRFC4862() const |
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{ |
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static const unsigned char pchRFC4862[] = {0xFE,0x80,0,0,0,0,0,0}; |
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return (memcmp(ip, pchRFC4862, sizeof(pchRFC4862)) == 0); |
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} |
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bool CNetAddr::IsRFC4193() const |
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{ |
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return ((GetByte(15) & 0xFE) == 0xFC); |
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} |
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bool CNetAddr::IsRFC6145() const |
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{ |
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static const unsigned char pchRFC6145[] = {0,0,0,0,0,0,0,0,0xFF,0xFF,0,0}; |
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return (memcmp(ip, pchRFC6145, sizeof(pchRFC6145)) == 0); |
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} |
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bool CNetAddr::IsRFC4843() const |
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{ |
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return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x00 && (GetByte(12) & 0xF0) == 0x10); |
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} |
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bool CNetAddr::IsTor() const |
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{ |
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return (memcmp(ip, pchOnionCat, sizeof(pchOnionCat)) == 0); |
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} |
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bool CNetAddr::IsLocal() const |
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{ |
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// IPv4 loopback
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if (IsIPv4() && (GetByte(3) == 127 || GetByte(3) == 0)) |
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return true; |
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// IPv6 loopback (::1/128)
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static const unsigned char pchLocal[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}; |
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if (memcmp(ip, pchLocal, 16) == 0) |
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return true; |
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return false; |
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} |
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bool CNetAddr::IsMulticast() const |
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{ |
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return (IsIPv4() && (GetByte(3) & 0xF0) == 0xE0) |
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|| (GetByte(15) == 0xFF); |
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} |
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bool CNetAddr::IsValid() const |
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{ |
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// Cleanup 3-byte shifted addresses caused by garbage in size field
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// of addr messages from versions before 0.2.9 checksum.
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// Two consecutive addr messages look like this:
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// header20 vectorlen3 addr26 addr26 addr26 header20 vectorlen3 addr26 addr26 addr26...
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// so if the first length field is garbled, it reads the second batch
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// of addr misaligned by 3 bytes.
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if (memcmp(ip, pchIPv4+3, sizeof(pchIPv4)-3) == 0) |
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return false; |
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// unspecified IPv6 address (::/128)
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unsigned char ipNone[16] = {}; |
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if (memcmp(ip, ipNone, 16) == 0) |
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return false; |
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// documentation IPv6 address
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if (IsRFC3849()) |
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return false; |
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if (IsIPv4()) |
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{ |
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// INADDR_NONE
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uint32_t ipNone = INADDR_NONE; |
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if (memcmp(ip+12, &ipNone, 4) == 0) |
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return false; |
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// 0
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ipNone = 0; |
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if (memcmp(ip+12, &ipNone, 4) == 0) |
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return false; |
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} |
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return true; |
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} |
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bool CNetAddr::IsRoutable() const |
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{ |
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return IsValid() && !(IsRFC1918() || IsRFC2544() || IsRFC3927() || IsRFC4862() || IsRFC6598() || IsRFC5737() || (IsRFC4193() && !IsTor()) || IsRFC4843() || IsLocal()); |
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} |
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enum Network CNetAddr::GetNetwork() const |
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{ |
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if (!IsRoutable()) |
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return NET_UNROUTABLE; |
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if (IsIPv4()) |
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return NET_IPV4; |
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if (IsTor()) |
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return NET_TOR; |
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return NET_IPV6; |
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} |
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std::string CNetAddr::ToStringIP() const |
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{ |
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if (IsTor()) |
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return EncodeBase32(&ip[6], 10) + ".onion"; |
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CService serv(*this, 0); |
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struct sockaddr_storage sockaddr; |
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socklen_t socklen = sizeof(sockaddr); |
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if (serv.GetSockAddr((struct sockaddr*)&sockaddr, &socklen)) { |
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char name[1025] = ""; |
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if (!getnameinfo((const struct sockaddr*)&sockaddr, socklen, name, sizeof(name), NULL, 0, NI_NUMERICHOST)) |
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return std::string(name); |
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} |
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if (IsIPv4()) |
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return strprintf("%u.%u.%u.%u", GetByte(3), GetByte(2), GetByte(1), GetByte(0)); |
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else |
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return strprintf("%x:%x:%x:%x:%x:%x:%x:%x", |
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GetByte(15) << 8 | GetByte(14), GetByte(13) << 8 | GetByte(12), |
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GetByte(11) << 8 | GetByte(10), GetByte(9) << 8 | GetByte(8), |
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GetByte(7) << 8 | GetByte(6), GetByte(5) << 8 | GetByte(4), |
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GetByte(3) << 8 | GetByte(2), GetByte(1) << 8 | GetByte(0)); |
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} |
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std::string CNetAddr::ToString() const |
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{ |
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return ToStringIP(); |
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} |
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bool operator==(const CNetAddr& a, const CNetAddr& b) |
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{ |
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return (memcmp(a.ip, b.ip, 16) == 0); |
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} |
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bool operator!=(const CNetAddr& a, const CNetAddr& b) |
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{ |
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return (memcmp(a.ip, b.ip, 16) != 0); |
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} |
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bool operator<(const CNetAddr& a, const CNetAddr& b) |
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{ |
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return (memcmp(a.ip, b.ip, 16) < 0); |
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} |
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bool CNetAddr::GetInAddr(struct in_addr* pipv4Addr) const |
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{ |
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if (!IsIPv4()) |
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return false; |
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memcpy(pipv4Addr, ip+12, 4); |
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return true; |
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} |
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bool CNetAddr::GetIn6Addr(struct in6_addr* pipv6Addr) const |
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{ |
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memcpy(pipv6Addr, ip, 16); |
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return true; |
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} |
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// get canonical identifier of an address' group
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// no two connections will be attempted to addresses with the same group
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std::vector<unsigned char> CNetAddr::GetGroup() const |
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{ |
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std::vector<unsigned char> vchRet; |
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int nClass = NET_IPV6; |
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int nStartByte = 0; |
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int nBits = 16; |
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// all local addresses belong to the same group
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if (IsLocal()) |
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{ |
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nClass = 255; |
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nBits = 0; |
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} |
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// all unroutable addresses belong to the same group
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if (!IsRoutable()) |
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{ |
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nClass = NET_UNROUTABLE; |
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nBits = 0; |
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} |
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// for IPv4 addresses, '1' + the 16 higher-order bits of the IP
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// includes mapped IPv4, SIIT translated IPv4, and the well-known prefix
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else if (IsIPv4() || IsRFC6145() || IsRFC6052()) |
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{ |
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nClass = NET_IPV4; |
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nStartByte = 12; |
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} |
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// for 6to4 tunnelled addresses, use the encapsulated IPv4 address
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else if (IsRFC3964()) |
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{ |
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nClass = NET_IPV4; |
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nStartByte = 2; |
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} |
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// for Teredo-tunnelled IPv6 addresses, use the encapsulated IPv4 address
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else if (IsRFC4380()) |
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{ |
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vchRet.push_back(NET_IPV4); |
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vchRet.push_back(GetByte(3) ^ 0xFF); |
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vchRet.push_back(GetByte(2) ^ 0xFF); |
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return vchRet; |
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} |
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else if (IsTor()) |
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{ |
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nClass = NET_TOR; |
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nStartByte = 6; |
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nBits = 4; |
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} |
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// for he.net, use /36 groups
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else if (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x04 && GetByte(12) == 0x70) |
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nBits = 36; |
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// for the rest of the IPv6 network, use /32 groups
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else |
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nBits = 32; |
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vchRet.push_back(nClass); |
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while (nBits >= 8) |
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{ |
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vchRet.push_back(GetByte(15 - nStartByte)); |
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nStartByte++; |
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nBits -= 8; |
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} |
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if (nBits > 0) |
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vchRet.push_back(GetByte(15 - nStartByte) | ((1 << (8 - nBits)) - 1)); |
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return vchRet; |
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} |
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uint64_t CNetAddr::GetHash() const |
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{ |
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uint256 hash = Hash(&ip[0], &ip[16]); |
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uint64_t nRet; |
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memcpy(&nRet, &hash, sizeof(nRet)); |
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return nRet; |
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} |
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// private extensions to enum Network, only returned by GetExtNetwork,
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// and only used in GetReachabilityFrom
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static const int NET_UNKNOWN = NET_MAX + 0; |
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static const int NET_TEREDO = NET_MAX + 1; |
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int static GetExtNetwork(const CNetAddr *addr) |
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{ |
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if (addr == NULL) |
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return NET_UNKNOWN; |
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if (addr->IsRFC4380()) |
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return NET_TEREDO; |
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return addr->GetNetwork(); |
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} |
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/** Calculates a metric for how reachable (*this) is from a given partner */ |
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int CNetAddr::GetReachabilityFrom(const CNetAddr *paddrPartner) const |
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{ |
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enum Reachability { |
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REACH_UNREACHABLE, |
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REACH_DEFAULT, |
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REACH_TEREDO, |
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REACH_IPV6_WEAK, |
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REACH_IPV4, |
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REACH_IPV6_STRONG, |
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REACH_PRIVATE |
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}; |
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if (!IsRoutable()) |
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return REACH_UNREACHABLE; |
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int ourNet = GetExtNetwork(this); |
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int theirNet = GetExtNetwork(paddrPartner); |
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bool fTunnel = IsRFC3964() || IsRFC6052() || IsRFC6145(); |
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switch(theirNet) { |
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case NET_IPV4: |
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switch(ourNet) { |
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default: return REACH_DEFAULT; |
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case NET_IPV4: return REACH_IPV4; |
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} |
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case NET_IPV6: |
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switch(ourNet) { |
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default: return REACH_DEFAULT; |
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case NET_TEREDO: return REACH_TEREDO; |
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case NET_IPV4: return REACH_IPV4; |
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case NET_IPV6: return fTunnel ? REACH_IPV6_WEAK : REACH_IPV6_STRONG; // only prefer giving our IPv6 address if it's not tunnelled
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} |
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case NET_TOR: |
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switch(ourNet) { |
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default: return REACH_DEFAULT; |
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case NET_IPV4: return REACH_IPV4; // Tor users can connect to IPv4 as well
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case NET_TOR: return REACH_PRIVATE; |
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} |
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case NET_TEREDO: |
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switch(ourNet) { |
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default: return REACH_DEFAULT; |
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case NET_TEREDO: return REACH_TEREDO; |
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case NET_IPV6: return REACH_IPV6_WEAK; |
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case NET_IPV4: return REACH_IPV4; |
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} |
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case NET_UNKNOWN: |
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case NET_UNROUTABLE: |
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default: |
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switch(ourNet) { |
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default: return REACH_DEFAULT; |
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case NET_TEREDO: return REACH_TEREDO; |
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case NET_IPV6: return REACH_IPV6_WEAK; |
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case NET_IPV4: return REACH_IPV4; |
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case NET_TOR: return REACH_PRIVATE; // either from Tor, or don't care about our address
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} |
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} |
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} |
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void CService::Init() |
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{ |
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port = 0; |
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} |
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CService::CService() |
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{ |
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Init(); |
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} |
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CService::CService(const CNetAddr& cip, unsigned short portIn) : CNetAddr(cip), port(portIn) |
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{ |
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} |
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CService::CService(const struct in_addr& ipv4Addr, unsigned short portIn) : CNetAddr(ipv4Addr), port(portIn) |
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{ |
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} |
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CService::CService(const struct in6_addr& ipv6Addr, unsigned short portIn) : CNetAddr(ipv6Addr), port(portIn) |
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{ |
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} |
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CService::CService(const struct sockaddr_in& addr) : CNetAddr(addr.sin_addr), port(ntohs(addr.sin_port)) |
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{ |
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assert(addr.sin_family == AF_INET); |
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} |
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CService::CService(const struct sockaddr_in6 &addr) : CNetAddr(addr.sin6_addr, addr.sin6_scope_id), port(ntohs(addr.sin6_port)) |
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{ |
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assert(addr.sin6_family == AF_INET6); |
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} |
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bool CService::SetSockAddr(const struct sockaddr *paddr) |
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{ |
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switch (paddr->sa_family) { |
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case AF_INET: |
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*this = CService(*(const struct sockaddr_in*)paddr); |
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return true; |
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case AF_INET6: |
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*this = CService(*(const struct sockaddr_in6*)paddr); |
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return true; |
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default: |
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return false; |
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} |
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} |
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unsigned short CService::GetPort() const |
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{ |
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return port; |
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} |
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bool operator==(const CService& a, const CService& b) |
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{ |
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return (CNetAddr)a == (CNetAddr)b && a.port == b.port; |
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} |
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bool operator!=(const CService& a, const CService& b) |
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{ |
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return (CNetAddr)a != (CNetAddr)b || a.port != b.port; |
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} |
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bool operator<(const CService& a, const CService& b) |
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{ |
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return (CNetAddr)a < (CNetAddr)b || ((CNetAddr)a == (CNetAddr)b && a.port < b.port); |
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} |
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||||
bool CService::GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const |
||||
{ |
||||
if (IsIPv4()) { |
||||
if (*addrlen < (socklen_t)sizeof(struct sockaddr_in)) |
||||
return false; |
||||
*addrlen = sizeof(struct sockaddr_in); |
||||
struct sockaddr_in *paddrin = (struct sockaddr_in*)paddr; |
||||
memset(paddrin, 0, *addrlen); |
||||
if (!GetInAddr(&paddrin->sin_addr)) |
||||
return false; |
||||
paddrin->sin_family = AF_INET; |
||||
paddrin->sin_port = htons(port); |
||||
return true; |
||||
} |
||||
if (IsIPv6()) { |
||||
if (*addrlen < (socklen_t)sizeof(struct sockaddr_in6)) |
||||
return false; |
||||
*addrlen = sizeof(struct sockaddr_in6); |
||||
struct sockaddr_in6 *paddrin6 = (struct sockaddr_in6*)paddr; |
||||
memset(paddrin6, 0, *addrlen); |
||||
if (!GetIn6Addr(&paddrin6->sin6_addr)) |
||||
return false; |
||||
paddrin6->sin6_scope_id = scopeId; |
||||
paddrin6->sin6_family = AF_INET6; |
||||
paddrin6->sin6_port = htons(port); |
||||
return true; |
||||
} |
||||
return false; |
||||
} |
||||
|
||||
std::vector<unsigned char> CService::GetKey() const |
||||
{ |
||||
std::vector<unsigned char> vKey; |
||||
vKey.resize(18); |
||||
memcpy(&vKey[0], ip, 16); |
||||
vKey[16] = port / 0x100; |
||||
vKey[17] = port & 0x0FF; |
||||
return vKey; |
||||
} |
||||
|
||||
std::string CService::ToStringPort() const |
||||
{ |
||||
return strprintf("%u", port); |
||||
} |
||||
|
||||
std::string CService::ToStringIPPort() const |
||||
{ |
||||
if (IsIPv4() || IsTor()) { |
||||
return ToStringIP() + ":" + ToStringPort(); |
||||
} else { |
||||
return "[" + ToStringIP() + "]:" + ToStringPort(); |
||||
} |
||||
} |
||||
|
||||
std::string CService::ToString() const |
||||
{ |
||||
return ToStringIPPort(); |
||||
} |
||||
|
||||
void CService::SetPort(unsigned short portIn) |
||||
{ |
||||
port = portIn; |
||||
} |
||||
|
||||
CSubNet::CSubNet(): |
||||
valid(false) |
||||
{ |
||||
memset(netmask, 0, sizeof(netmask)); |
||||
} |
||||
|
||||
CSubNet::CSubNet(const CNetAddr &addr, int32_t mask) |
||||
{ |
||||
valid = true; |
||||
network = addr; |
||||
// Default to /32 (IPv4) or /128 (IPv6), i.e. match single address
|
||||
memset(netmask, 255, sizeof(netmask)); |
||||
|
||||
// IPv4 addresses start at offset 12, and first 12 bytes must match, so just offset n
|
||||
const int astartofs = network.IsIPv4() ? 12 : 0; |
||||
|
||||
int32_t n = mask; |
||||
if(n >= 0 && n <= (128 - astartofs*8)) // Only valid if in range of bits of address
|
||||
{ |
||||
n += astartofs*8; |
||||
// Clear bits [n..127]
|
||||
for (; n < 128; ++n) |
||||
netmask[n>>3] &= ~(1<<(7-(n&7))); |
||||
} else |
||||
valid = false; |
||||
|
||||
// Normalize network according to netmask
|
||||
for(int x=0; x<16; ++x) |
||||
network.ip[x] &= netmask[x]; |
||||
} |
||||
|
||||
CSubNet::CSubNet(const CNetAddr &addr, const CNetAddr &mask) |
||||
{ |
||||
valid = true; |
||||
network = addr; |
||||
// Default to /32 (IPv4) or /128 (IPv6), i.e. match single address
|
||||
memset(netmask, 255, sizeof(netmask)); |
||||
|
||||
// IPv4 addresses start at offset 12, and first 12 bytes must match, so just offset n
|
||||
const int astartofs = network.IsIPv4() ? 12 : 0; |
||||
|
||||
for(int x=astartofs; x<16; ++x) |
||||
netmask[x] = mask.ip[x]; |
||||
|
||||
// Normalize network according to netmask
|
||||
for(int x=0; x<16; ++x) |
||||
network.ip[x] &= netmask[x]; |
||||
} |
||||
|
||||
CSubNet::CSubNet(const CNetAddr &addr): |
||||
valid(addr.IsValid()) |
||||
{ |
||||
memset(netmask, 255, sizeof(netmask)); |
||||
network = addr; |
||||
} |
||||
|
||||
bool CSubNet::Match(const CNetAddr &addr) const |
||||
{ |
||||
if (!valid || !addr.IsValid()) |
||||
return false; |
||||
for(int x=0; x<16; ++x) |
||||
if ((addr.ip[x] & netmask[x]) != network.ip[x]) |
||||
return false; |
||||
return true; |
||||
} |
||||
|
||||
static inline int NetmaskBits(uint8_t x) |
||||
{ |
||||
switch(x) { |
||||
case 0x00: return 0; break; |
||||
case 0x80: return 1; break; |
||||
case 0xc0: return 2; break; |
||||
case 0xe0: return 3; break; |
||||
case 0xf0: return 4; break; |
||||
case 0xf8: return 5; break; |
||||
case 0xfc: return 6; break; |
||||
case 0xfe: return 7; break; |
||||
case 0xff: return 8; break; |
||||
default: return -1; break; |
||||
} |
||||
} |
||||
|
||||
std::string CSubNet::ToString() const |
||||
{ |
||||
/* Parse binary 1{n}0{N-n} to see if mask can be represented as /n */ |
||||
int cidr = 0; |
||||
bool valid_cidr = true; |
||||
int n = network.IsIPv4() ? 12 : 0; |
||||
for (; n < 16 && netmask[n] == 0xff; ++n) |
||||
cidr += 8; |
||||
if (n < 16) { |
||||
int bits = NetmaskBits(netmask[n]); |
||||
if (bits < 0) |
||||
valid_cidr = false; |
||||
else |
||||
cidr += bits; |
||||
++n; |
||||
} |
||||
for (; n < 16 && valid_cidr; ++n) |
||||
if (netmask[n] != 0x00) |
||||
valid_cidr = false; |
||||
|
||||
/* Format output */ |
||||
std::string strNetmask; |
||||
if (valid_cidr) { |
||||
strNetmask = strprintf("%u", cidr); |
||||
} else { |
||||
if (network.IsIPv4()) |
||||
strNetmask = strprintf("%u.%u.%u.%u", netmask[12], netmask[13], netmask[14], netmask[15]); |
||||
else |
||||
strNetmask = strprintf("%x:%x:%x:%x:%x:%x:%x:%x", |
||||
netmask[0] << 8 | netmask[1], netmask[2] << 8 | netmask[3], |
||||
netmask[4] << 8 | netmask[5], netmask[6] << 8 | netmask[7], |
||||
netmask[8] << 8 | netmask[9], netmask[10] << 8 | netmask[11], |
||||
netmask[12] << 8 | netmask[13], netmask[14] << 8 | netmask[15]); |
||||
} |
||||
|
||||
return network.ToString() + "/" + strNetmask; |
||||
} |
||||
|
||||
bool CSubNet::IsValid() const |
||||
{ |
||||
return valid; |
||||
} |
||||
|
||||
bool operator==(const CSubNet& a, const CSubNet& b) |
||||
{ |
||||
return a.valid == b.valid && a.network == b.network && !memcmp(a.netmask, b.netmask, 16); |
||||
} |
||||
|
||||
bool operator!=(const CSubNet& a, const CSubNet& b) |
||||
{ |
||||
return !(a==b); |
||||
} |
||||
|
||||
bool operator<(const CSubNet& a, const CSubNet& b) |
||||
{ |
||||
return (a.network < b.network || (a.network == b.network && memcmp(a.netmask, b.netmask, 16) < 0)); |
||||
} |
||||
@ -0,0 +1,171 @@
@@ -0,0 +1,171 @@
|
||||
// Copyright (c) 2009-2015 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 communcations (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; |
||||
bool IsMulticast() 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, int nType, int nVersion) { |
||||
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, int nType, int nVersion) { |
||||
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, int nType, int nVersion) { |
||||
READWRITE(FLATDATA(ip)); |
||||
unsigned short portN = htons(port); |
||||
READWRITE(FLATDATA(portN)); |
||||
if (ser_action.ForRead()) |
||||
port = ntohs(portN); |
||||
} |
||||
}; |
||||
|
||||
#endif // BITCOIN_NETADDRESS_H
|
||||
Loading…
Reference in new issue