2012-01-03 14:33:31 -08:00
|
|
|
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
2014-02-08 13:50:24 -08:00
|
|
|
// Copyright (c) 2009-2014 The Bitcoin developers
|
2012-01-03 14:33:31 -08:00
|
|
|
// Distributed under the MIT/X11 software license, see the accompanying
|
2012-05-18 07:02:28 -07:00
|
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
2012-01-03 14:33:31 -08:00
|
|
|
|
|
|
|
#include "netbase.h"
|
2013-04-12 22:13:08 -07:00
|
|
|
|
2012-12-18 11:56:21 -08:00
|
|
|
#include "hash.h"
|
2013-04-12 22:13:08 -07:00
|
|
|
#include "sync.h"
|
|
|
|
#include "uint256.h"
|
|
|
|
#include "util.h"
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
#ifndef WIN32
|
2013-07-17 01:51:40 -07:00
|
|
|
#include <fcntl.h>
|
2012-01-03 14:33:31 -08:00
|
|
|
#endif
|
|
|
|
|
2012-05-12 15:40:30 -07:00
|
|
|
#include <boost/algorithm/string/case_conv.hpp> // for to_lower()
|
2012-10-02 12:36:39 -07:00
|
|
|
#include <boost/algorithm/string/predicate.hpp> // for startswith() and endswith()
|
2012-01-03 14:33:31 -08:00
|
|
|
|
2013-04-12 22:13:08 -07:00
|
|
|
#if !defined(HAVE_MSG_NOSIGNAL) && !defined(MSG_NOSIGNAL)
|
2013-05-27 16:55:01 -07:00
|
|
|
#define MSG_NOSIGNAL 0
|
|
|
|
#endif
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
using namespace std;
|
|
|
|
|
|
|
|
// Settings
|
2012-05-24 10:02:21 -07:00
|
|
|
static proxyType proxyInfo[NET_MAX];
|
|
|
|
static proxyType nameproxyInfo;
|
2012-09-23 03:55:05 -07:00
|
|
|
static CCriticalSection cs_proxyInfos;
|
2012-01-03 14:33:31 -08:00
|
|
|
int nConnectTimeout = 5000;
|
2012-05-24 10:02:21 -07:00
|
|
|
bool fNameLookup = false;
|
2012-01-03 14:33:31 -08:00
|
|
|
|
|
|
|
static const unsigned char pchIPv4[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff };
|
|
|
|
|
2012-04-10 11:22:04 -07:00
|
|
|
enum Network ParseNetwork(std::string net) {
|
2012-05-12 15:40:30 -07:00
|
|
|
boost::to_lower(net);
|
2012-04-10 11:22:04 -07:00
|
|
|
if (net == "ipv4") return NET_IPV4;
|
|
|
|
if (net == "ipv6") return NET_IPV6;
|
|
|
|
if (net == "tor") return NET_TOR;
|
|
|
|
return NET_UNROUTABLE;
|
|
|
|
}
|
|
|
|
|
2012-05-30 13:44:23 -07:00
|
|
|
void SplitHostPort(std::string in, int &portOut, std::string &hostOut) {
|
|
|
|
size_t colon = in.find_last_of(':');
|
|
|
|
// if a : is found, and it either follows a [...], or no other : is in the string, treat it as port separator
|
|
|
|
bool fHaveColon = colon != in.npos;
|
|
|
|
bool fBracketed = fHaveColon && (in[0]=='[' && in[colon-1]==']'); // if there is a colon, and in[0]=='[', colon is not 0, so in[colon-1] is safe
|
|
|
|
bool fMultiColon = fHaveColon && (in.find_last_of(':',colon-1) != in.npos);
|
|
|
|
if (fHaveColon && (colon==0 || fBracketed || !fMultiColon)) {
|
2014-05-03 01:25:58 -07:00
|
|
|
int32_t n;
|
|
|
|
if (ParseInt32(in.substr(colon + 1), &n) && n > 0 && n < 0x10000) {
|
2012-05-30 13:44:23 -07:00
|
|
|
in = in.substr(0, colon);
|
2014-05-03 01:25:58 -07:00
|
|
|
portOut = n;
|
2012-05-30 13:44:23 -07:00
|
|
|
}
|
|
|
|
}
|
|
|
|
if (in.size()>0 && in[0] == '[' && in[in.size()-1] == ']')
|
|
|
|
hostOut = in.substr(1, in.size()-2);
|
|
|
|
else
|
|
|
|
hostOut = in;
|
|
|
|
}
|
|
|
|
|
2012-04-15 13:58:32 -07:00
|
|
|
bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
vIP.clear();
|
2012-04-28 17:11:56 -07:00
|
|
|
|
|
|
|
{
|
|
|
|
CNetAddr addr;
|
|
|
|
if (addr.SetSpecial(std::string(pszName))) {
|
|
|
|
vIP.push_back(addr);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-01-12 17:02:47 -08:00
|
|
|
struct addrinfo aiHint;
|
|
|
|
memset(&aiHint, 0, sizeof(struct addrinfo));
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
aiHint.ai_socktype = SOCK_STREAM;
|
|
|
|
aiHint.ai_protocol = IPPROTO_TCP;
|
|
|
|
aiHint.ai_family = AF_UNSPEC;
|
2013-04-27 05:27:05 -07:00
|
|
|
#ifdef WIN32
|
2012-06-18 17:22:09 -07:00
|
|
|
aiHint.ai_flags = fAllowLookup ? 0 : AI_NUMERICHOST;
|
2012-01-03 14:33:31 -08:00
|
|
|
#else
|
2012-06-18 17:22:09 -07:00
|
|
|
aiHint.ai_flags = fAllowLookup ? AI_ADDRCONFIG : AI_NUMERICHOST;
|
2012-01-03 14:33:31 -08:00
|
|
|
#endif
|
|
|
|
struct addrinfo *aiRes = NULL;
|
|
|
|
int nErr = getaddrinfo(pszName, NULL, &aiHint, &aiRes);
|
|
|
|
if (nErr)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
struct addrinfo *aiTrav = aiRes;
|
|
|
|
while (aiTrav != NULL && (nMaxSolutions == 0 || vIP.size() < nMaxSolutions))
|
|
|
|
{
|
|
|
|
if (aiTrav->ai_family == AF_INET)
|
|
|
|
{
|
|
|
|
assert(aiTrav->ai_addrlen >= sizeof(sockaddr_in));
|
|
|
|
vIP.push_back(CNetAddr(((struct sockaddr_in*)(aiTrav->ai_addr))->sin_addr));
|
|
|
|
}
|
|
|
|
|
|
|
|
if (aiTrav->ai_family == AF_INET6)
|
|
|
|
{
|
|
|
|
assert(aiTrav->ai_addrlen >= sizeof(sockaddr_in6));
|
|
|
|
vIP.push_back(CNetAddr(((struct sockaddr_in6*)(aiTrav->ai_addr))->sin6_addr));
|
|
|
|
}
|
|
|
|
|
|
|
|
aiTrav = aiTrav->ai_next;
|
|
|
|
}
|
|
|
|
|
|
|
|
freeaddrinfo(aiRes);
|
|
|
|
|
|
|
|
return (vIP.size() > 0);
|
|
|
|
}
|
|
|
|
|
2012-04-15 13:58:32 -07:00
|
|
|
bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
2013-04-27 05:27:05 -07:00
|
|
|
std::string strHost(pszName);
|
|
|
|
if (strHost.empty())
|
2012-01-03 14:33:31 -08:00
|
|
|
return false;
|
2013-04-27 05:27:05 -07:00
|
|
|
if (boost::algorithm::starts_with(strHost, "[") && boost::algorithm::ends_with(strHost, "]"))
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
2013-04-27 05:27:05 -07:00
|
|
|
strHost = strHost.substr(1, strHost.size() - 2);
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
2012-10-02 12:36:39 -07:00
|
|
|
return LookupIntern(strHost.c_str(), vIP, nMaxSolutions, fAllowLookup);
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
2012-04-15 13:58:32 -07:00
|
|
|
bool LookupHostNumeric(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
return LookupHost(pszName, vIP, nMaxSolutions, false);
|
|
|
|
}
|
|
|
|
|
2012-04-15 13:58:32 -07:00
|
|
|
bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
if (pszName[0] == 0)
|
|
|
|
return false;
|
|
|
|
int port = portDefault;
|
2012-05-30 13:44:23 -07:00
|
|
|
std::string hostname = "";
|
|
|
|
SplitHostPort(std::string(pszName), port, hostname);
|
2012-01-03 14:33:31 -08:00
|
|
|
|
|
|
|
std::vector<CNetAddr> vIP;
|
2012-05-30 13:44:23 -07:00
|
|
|
bool fRet = LookupIntern(hostname.c_str(), vIP, nMaxSolutions, fAllowLookup);
|
2011-12-16 16:48:03 -08:00
|
|
|
if (!fRet)
|
|
|
|
return false;
|
|
|
|
vAddr.resize(vIP.size());
|
2012-04-15 13:52:09 -07:00
|
|
|
for (unsigned int i = 0; i < vIP.size(); i++)
|
2011-12-16 16:48:03 -08:00
|
|
|
vAddr[i] = CService(vIP[i], port);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool Lookup(const char *pszName, CService& addr, int portDefault, bool fAllowLookup)
|
|
|
|
{
|
|
|
|
std::vector<CService> vService;
|
|
|
|
bool fRet = Lookup(pszName, vService, portDefault, fAllowLookup, 1);
|
2012-01-03 14:33:31 -08:00
|
|
|
if (!fRet)
|
|
|
|
return false;
|
2011-12-16 16:48:03 -08:00
|
|
|
addr = vService[0];
|
2012-01-03 14:33:31 -08:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool LookupNumeric(const char *pszName, CService& addr, int portDefault)
|
|
|
|
{
|
|
|
|
return Lookup(pszName, addr, portDefault, false);
|
|
|
|
}
|
|
|
|
|
2012-04-01 11:25:48 -07:00
|
|
|
bool static Socks4(const CService &addrDest, SOCKET& hSocket)
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("SOCKS4 connecting %s\n", addrDest.ToString());
|
2012-04-01 11:25:48 -07:00
|
|
|
if (!addrDest.IsIPv4())
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Proxy destination is not IPv4");
|
|
|
|
}
|
|
|
|
char pszSocks4IP[] = "\4\1\0\0\0\0\0\0user";
|
|
|
|
struct sockaddr_in addr;
|
2012-05-11 06:28:59 -07:00
|
|
|
socklen_t len = sizeof(addr);
|
|
|
|
if (!addrDest.GetSockAddr((struct sockaddr*)&addr, &len) || addr.sin_family != AF_INET)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Cannot get proxy destination address");
|
|
|
|
}
|
2012-04-01 11:25:48 -07:00
|
|
|
memcpy(pszSocks4IP + 2, &addr.sin_port, 2);
|
|
|
|
memcpy(pszSocks4IP + 4, &addr.sin_addr, 4);
|
|
|
|
char* pszSocks4 = pszSocks4IP;
|
|
|
|
int nSize = sizeof(pszSocks4IP);
|
|
|
|
|
|
|
|
int ret = send(hSocket, pszSocks4, nSize, MSG_NOSIGNAL);
|
|
|
|
if (ret != nSize)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error sending to proxy");
|
|
|
|
}
|
|
|
|
char pchRet[8];
|
|
|
|
if (recv(hSocket, pchRet, 8, 0) != 8)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error reading proxy response");
|
|
|
|
}
|
|
|
|
if (pchRet[1] != 0x5a)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
if (pchRet[1] != 0x5b)
|
2013-09-18 03:38:08 -07:00
|
|
|
LogPrintf("ERROR: Proxy returned error %d\n", pchRet[1]);
|
2012-04-01 11:25:48 -07:00
|
|
|
return false;
|
|
|
|
}
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("SOCKS4 connected %s\n", addrDest.ToString());
|
2012-04-01 11:25:48 -07:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-04-19 08:02:21 -07:00
|
|
|
bool static Socks5(string strDest, int port, SOCKET& hSocket)
|
2012-04-01 11:25:48 -07:00
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("SOCKS5 connecting %s\n", strDest);
|
2012-04-19 08:02:21 -07:00
|
|
|
if (strDest.size() > 255)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Hostname too long");
|
|
|
|
}
|
2012-04-01 11:25:48 -07:00
|
|
|
char pszSocks5Init[] = "\5\1\0";
|
2012-07-07 07:11:54 -07:00
|
|
|
ssize_t nSize = sizeof(pszSocks5Init) - 1;
|
2012-04-01 11:25:48 -07:00
|
|
|
|
2013-04-27 05:27:05 -07:00
|
|
|
ssize_t ret = send(hSocket, pszSocks5Init, nSize, MSG_NOSIGNAL);
|
2012-04-01 11:25:48 -07:00
|
|
|
if (ret != nSize)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error sending to proxy");
|
|
|
|
}
|
|
|
|
char pchRet1[2];
|
|
|
|
if (recv(hSocket, pchRet1, 2, 0) != 2)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error reading proxy response");
|
|
|
|
}
|
|
|
|
if (pchRet1[0] != 0x05 || pchRet1[1] != 0x00)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Proxy failed to initialize");
|
|
|
|
}
|
2012-04-19 07:13:30 -07:00
|
|
|
string strSocks5("\5\1");
|
|
|
|
strSocks5 += '\000'; strSocks5 += '\003';
|
|
|
|
strSocks5 += static_cast<char>(std::min((int)strDest.size(), 255));
|
2012-09-18 12:07:58 -07:00
|
|
|
strSocks5 += strDest;
|
2012-04-19 08:02:21 -07:00
|
|
|
strSocks5 += static_cast<char>((port >> 8) & 0xFF);
|
|
|
|
strSocks5 += static_cast<char>((port >> 0) & 0xFF);
|
2012-04-19 07:13:30 -07:00
|
|
|
ret = send(hSocket, strSocks5.c_str(), strSocks5.size(), MSG_NOSIGNAL);
|
2012-05-08 18:48:14 -07:00
|
|
|
if (ret != (ssize_t)strSocks5.size())
|
2012-04-01 11:25:48 -07:00
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error sending to proxy");
|
|
|
|
}
|
|
|
|
char pchRet2[4];
|
|
|
|
if (recv(hSocket, pchRet2, 4, 0) != 4)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error reading proxy response");
|
|
|
|
}
|
|
|
|
if (pchRet2[0] != 0x05)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Proxy failed to accept request");
|
|
|
|
}
|
|
|
|
if (pchRet2[1] != 0x00)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
switch (pchRet2[1])
|
|
|
|
{
|
|
|
|
case 0x01: return error("Proxy error: general failure");
|
|
|
|
case 0x02: return error("Proxy error: connection not allowed");
|
|
|
|
case 0x03: return error("Proxy error: network unreachable");
|
|
|
|
case 0x04: return error("Proxy error: host unreachable");
|
|
|
|
case 0x05: return error("Proxy error: connection refused");
|
|
|
|
case 0x06: return error("Proxy error: TTL expired");
|
|
|
|
case 0x07: return error("Proxy error: protocol error");
|
|
|
|
case 0x08: return error("Proxy error: address type not supported");
|
|
|
|
default: return error("Proxy error: unknown");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (pchRet2[2] != 0x00)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error: malformed proxy response");
|
|
|
|
}
|
|
|
|
char pchRet3[256];
|
|
|
|
switch (pchRet2[3])
|
|
|
|
{
|
|
|
|
case 0x01: ret = recv(hSocket, pchRet3, 4, 0) != 4; break;
|
|
|
|
case 0x04: ret = recv(hSocket, pchRet3, 16, 0) != 16; break;
|
|
|
|
case 0x03:
|
|
|
|
{
|
|
|
|
ret = recv(hSocket, pchRet3, 1, 0) != 1;
|
2014-04-09 17:09:17 -07:00
|
|
|
if (ret) {
|
|
|
|
closesocket(hSocket);
|
2012-04-01 11:25:48 -07:00
|
|
|
return error("Error reading from proxy");
|
2014-04-09 17:09:17 -07:00
|
|
|
}
|
2012-04-01 11:25:48 -07:00
|
|
|
int nRecv = pchRet3[0];
|
|
|
|
ret = recv(hSocket, pchRet3, nRecv, 0) != nRecv;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default: closesocket(hSocket); return error("Error: malformed proxy response");
|
|
|
|
}
|
|
|
|
if (ret)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error reading from proxy");
|
|
|
|
}
|
|
|
|
if (recv(hSocket, pchRet3, 2, 0) != 2)
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return error("Error reading from proxy");
|
|
|
|
}
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("SOCKS5 connected %s\n", strDest);
|
2012-04-01 11:25:48 -07:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-04-19 08:02:21 -07:00
|
|
|
bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRet, int nTimeout)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
hSocketRet = INVALID_SOCKET;
|
|
|
|
|
2012-05-11 06:28:59 -07:00
|
|
|
struct sockaddr_storage sockaddr;
|
|
|
|
socklen_t len = sizeof(sockaddr);
|
|
|
|
if (!addrConnect.GetSockAddr((struct sockaddr*)&sockaddr, &len)) {
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("Cannot connect to %s: unsupported network\n", addrConnect.ToString());
|
2012-03-31 08:58:25 -07:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-05-11 06:28:59 -07:00
|
|
|
SOCKET hSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP);
|
2012-01-03 14:33:31 -08:00
|
|
|
if (hSocket == INVALID_SOCKET)
|
|
|
|
return false;
|
|
|
|
#ifdef SO_NOSIGPIPE
|
|
|
|
int set = 1;
|
|
|
|
setsockopt(hSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&set, sizeof(int));
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef WIN32
|
|
|
|
u_long fNonblock = 1;
|
|
|
|
if (ioctlsocket(hSocket, FIONBIO, &fNonblock) == SOCKET_ERROR)
|
|
|
|
#else
|
|
|
|
int fFlags = fcntl(hSocket, F_GETFL, 0);
|
|
|
|
if (fcntl(hSocket, F_SETFL, fFlags | O_NONBLOCK) == -1)
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-05-11 06:28:59 -07:00
|
|
|
if (connect(hSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
// WSAEINVAL is here because some legacy version of winsock uses it
|
|
|
|
if (WSAGetLastError() == WSAEINPROGRESS || WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINVAL)
|
|
|
|
{
|
|
|
|
struct timeval timeout;
|
|
|
|
timeout.tv_sec = nTimeout / 1000;
|
|
|
|
timeout.tv_usec = (nTimeout % 1000) * 1000;
|
|
|
|
|
|
|
|
fd_set fdset;
|
|
|
|
FD_ZERO(&fdset);
|
|
|
|
FD_SET(hSocket, &fdset);
|
|
|
|
int nRet = select(hSocket + 1, NULL, &fdset, NULL, &timeout);
|
|
|
|
if (nRet == 0)
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrint("net", "connection to %s timeout\n", addrConnect.ToString());
|
2012-01-03 14:33:31 -08:00
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
if (nRet == SOCKET_ERROR)
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("select() for %s failed: %i\n", addrConnect.ToString(), WSAGetLastError());
|
2012-01-03 14:33:31 -08:00
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
socklen_t nRetSize = sizeof(nRet);
|
|
|
|
#ifdef WIN32
|
|
|
|
if (getsockopt(hSocket, SOL_SOCKET, SO_ERROR, (char*)(&nRet), &nRetSize) == SOCKET_ERROR)
|
|
|
|
#else
|
|
|
|
if (getsockopt(hSocket, SOL_SOCKET, SO_ERROR, &nRet, &nRetSize) == SOCKET_ERROR)
|
|
|
|
#endif
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("getsockopt() for %s failed: %i\n", addrConnect.ToString(), WSAGetLastError());
|
2012-01-03 14:33:31 -08:00
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
if (nRet != 0)
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("connect() to %s failed after select(): %s\n", addrConnect.ToString(), strerror(nRet));
|
2012-01-03 14:33:31 -08:00
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#ifdef WIN32
|
|
|
|
else if (WSAGetLastError() != WSAEISCONN)
|
|
|
|
#else
|
|
|
|
else
|
|
|
|
#endif
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("connect() to %s failed: %i\n", addrConnect.ToString(), WSAGetLastError());
|
2012-01-03 14:33:31 -08:00
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// this isn't even strictly necessary
|
|
|
|
// CNode::ConnectNode immediately turns the socket back to non-blocking
|
|
|
|
// but we'll turn it back to blocking just in case
|
|
|
|
#ifdef WIN32
|
|
|
|
fNonblock = 0;
|
|
|
|
if (ioctlsocket(hSocket, FIONBIO, &fNonblock) == SOCKET_ERROR)
|
|
|
|
#else
|
|
|
|
fFlags = fcntl(hSocket, F_GETFL, 0);
|
2013-04-27 05:27:05 -07:00
|
|
|
if (fcntl(hSocket, F_SETFL, fFlags & ~O_NONBLOCK) == SOCKET_ERROR)
|
2012-01-03 14:33:31 -08:00
|
|
|
#endif
|
|
|
|
{
|
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-04-19 08:02:21 -07:00
|
|
|
hSocketRet = hSocket;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-05-24 10:02:21 -07:00
|
|
|
bool SetProxy(enum Network net, CService addrProxy, int nSocksVersion) {
|
|
|
|
assert(net >= 0 && net < NET_MAX);
|
|
|
|
if (nSocksVersion != 0 && nSocksVersion != 4 && nSocksVersion != 5)
|
|
|
|
return false;
|
|
|
|
if (nSocksVersion != 0 && !addrProxy.IsValid())
|
|
|
|
return false;
|
2012-09-23 03:55:05 -07:00
|
|
|
LOCK(cs_proxyInfos);
|
2012-05-24 10:02:21 -07:00
|
|
|
proxyInfo[net] = std::make_pair(addrProxy, nSocksVersion);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-09-23 03:55:05 -07:00
|
|
|
bool GetProxy(enum Network net, proxyType &proxyInfoOut) {
|
2012-05-24 10:02:21 -07:00
|
|
|
assert(net >= 0 && net < NET_MAX);
|
2012-09-23 03:55:05 -07:00
|
|
|
LOCK(cs_proxyInfos);
|
2012-05-24 10:02:21 -07:00
|
|
|
if (!proxyInfo[net].second)
|
|
|
|
return false;
|
2012-09-23 03:55:05 -07:00
|
|
|
proxyInfoOut = proxyInfo[net];
|
2012-05-24 10:02:21 -07:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool SetNameProxy(CService addrProxy, int nSocksVersion) {
|
|
|
|
if (nSocksVersion != 0 && nSocksVersion != 5)
|
|
|
|
return false;
|
|
|
|
if (nSocksVersion != 0 && !addrProxy.IsValid())
|
|
|
|
return false;
|
2012-09-23 03:55:05 -07:00
|
|
|
LOCK(cs_proxyInfos);
|
2012-05-24 10:02:21 -07:00
|
|
|
nameproxyInfo = std::make_pair(addrProxy, nSocksVersion);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-09-23 03:55:05 -07:00
|
|
|
bool GetNameProxy(proxyType &nameproxyInfoOut) {
|
|
|
|
LOCK(cs_proxyInfos);
|
|
|
|
if (!nameproxyInfo.second)
|
|
|
|
return false;
|
|
|
|
nameproxyInfoOut = nameproxyInfo;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool HaveNameProxy() {
|
|
|
|
LOCK(cs_proxyInfos);
|
2012-05-24 10:02:21 -07:00
|
|
|
return nameproxyInfo.second != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool IsProxy(const CNetAddr &addr) {
|
2012-09-23 03:55:05 -07:00
|
|
|
LOCK(cs_proxyInfos);
|
|
|
|
for (int i = 0; i < NET_MAX; i++) {
|
2012-05-24 10:02:21 -07:00
|
|
|
if (proxyInfo[i].second && (addr == (CNetAddr)proxyInfo[i].first))
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-04-19 08:02:21 -07:00
|
|
|
bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout)
|
|
|
|
{
|
2012-09-23 03:55:05 -07:00
|
|
|
proxyType proxy;
|
2012-05-24 10:02:21 -07:00
|
|
|
|
|
|
|
// no proxy needed
|
2012-09-23 03:55:05 -07:00
|
|
|
if (!GetProxy(addrDest.GetNetwork(), proxy))
|
2012-05-24 10:02:21 -07:00
|
|
|
return ConnectSocketDirectly(addrDest, hSocketRet, nTimeout);
|
|
|
|
|
2012-04-19 08:02:21 -07:00
|
|
|
SOCKET hSocket = INVALID_SOCKET;
|
|
|
|
|
2012-05-24 10:02:21 -07:00
|
|
|
// first connect to proxy server
|
|
|
|
if (!ConnectSocketDirectly(proxy.first, hSocket, nTimeout))
|
|
|
|
return false;
|
2012-09-18 12:07:58 -07:00
|
|
|
|
2012-05-24 10:02:21 -07:00
|
|
|
// do socks negotiation
|
|
|
|
switch (proxy.second) {
|
|
|
|
case 4:
|
|
|
|
if (!Socks4(addrDest, hSocket))
|
|
|
|
return false;
|
|
|
|
break;
|
|
|
|
case 5:
|
|
|
|
if (!Socks5(addrDest.ToStringIP(), addrDest.GetPort(), hSocket))
|
|
|
|
return false;
|
|
|
|
break;
|
|
|
|
default:
|
2014-04-09 17:09:17 -07:00
|
|
|
closesocket(hSocket);
|
2012-04-19 08:02:21 -07:00
|
|
|
return false;
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
hSocketRet = hSocket;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-04-19 08:38:03 -07:00
|
|
|
bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout)
|
|
|
|
{
|
2012-05-30 13:44:23 -07:00
|
|
|
string strDest;
|
2012-04-19 08:38:03 -07:00
|
|
|
int port = portDefault;
|
2012-05-30 13:44:23 -07:00
|
|
|
SplitHostPort(string(pszDest), port, strDest);
|
2012-04-19 08:38:03 -07:00
|
|
|
|
|
|
|
SOCKET hSocket = INVALID_SOCKET;
|
2012-09-23 03:55:05 -07:00
|
|
|
|
|
|
|
proxyType nameproxy;
|
|
|
|
GetNameProxy(nameproxy);
|
|
|
|
|
|
|
|
CService addrResolved(CNetAddr(strDest, fNameLookup && !nameproxy.second), port);
|
2012-04-19 08:38:03 -07:00
|
|
|
if (addrResolved.IsValid()) {
|
|
|
|
addr = addrResolved;
|
|
|
|
return ConnectSocket(addr, hSocketRet, nTimeout);
|
|
|
|
}
|
|
|
|
addr = CService("0.0.0.0:0");
|
2012-09-23 03:55:05 -07:00
|
|
|
if (!nameproxy.second)
|
2012-04-19 08:38:03 -07:00
|
|
|
return false;
|
2012-09-23 03:55:05 -07:00
|
|
|
if (!ConnectSocketDirectly(nameproxy.first, hSocket, nTimeout))
|
2012-04-19 08:38:03 -07:00
|
|
|
return false;
|
|
|
|
|
2012-09-23 03:55:05 -07:00
|
|
|
switch(nameproxy.second) {
|
2012-05-24 10:02:21 -07:00
|
|
|
default:
|
2014-04-09 17:09:17 -07:00
|
|
|
case 4:
|
|
|
|
closesocket(hSocket);
|
|
|
|
return false;
|
2012-05-24 10:02:21 -07:00
|
|
|
case 5:
|
|
|
|
if (!Socks5(strDest, port, hSocket))
|
|
|
|
return false;
|
|
|
|
break;
|
|
|
|
}
|
2012-04-19 08:38:03 -07:00
|
|
|
|
|
|
|
hSocketRet = hSocket;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
void CNetAddr::Init()
|
|
|
|
{
|
2012-11-08 10:38:49 -08:00
|
|
|
memset(ip, 0, sizeof(ip));
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
void CNetAddr::SetIP(const CNetAddr& ipIn)
|
|
|
|
{
|
|
|
|
memcpy(ip, ipIn.ip, sizeof(ip));
|
|
|
|
}
|
|
|
|
|
2014-04-28 02:08:57 -07:00
|
|
|
void CNetAddr::SetRaw(Network network, const uint8_t *ip_in)
|
|
|
|
{
|
|
|
|
switch(network)
|
|
|
|
{
|
|
|
|
case NET_IPV4:
|
|
|
|
memcpy(ip, pchIPv4, 12);
|
|
|
|
memcpy(ip+12, ip_in, 4);
|
|
|
|
break;
|
|
|
|
case NET_IPV6:
|
|
|
|
memcpy(ip, ip_in, 16);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
assert(!"invalid network");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-28 17:11:56 -07:00
|
|
|
static const unsigned char pchOnionCat[] = {0xFD,0x87,0xD8,0x7E,0xEB,0x43};
|
|
|
|
|
|
|
|
bool CNetAddr::SetSpecial(const std::string &strName)
|
|
|
|
{
|
|
|
|
if (strName.size()>6 && strName.substr(strName.size() - 6, 6) == ".onion") {
|
|
|
|
std::vector<unsigned char> vchAddr = DecodeBase32(strName.substr(0, strName.size() - 6).c_str());
|
|
|
|
if (vchAddr.size() != 16-sizeof(pchOnionCat))
|
|
|
|
return false;
|
|
|
|
memcpy(ip, pchOnionCat, sizeof(pchOnionCat));
|
|
|
|
for (unsigned int i=0; i<16-sizeof(pchOnionCat); i++)
|
|
|
|
ip[i + sizeof(pchOnionCat)] = vchAddr[i];
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
CNetAddr::CNetAddr()
|
|
|
|
{
|
|
|
|
Init();
|
|
|
|
}
|
|
|
|
|
|
|
|
CNetAddr::CNetAddr(const struct in_addr& ipv4Addr)
|
|
|
|
{
|
2014-04-28 02:08:57 -07:00
|
|
|
SetRaw(NET_IPV4, (const uint8_t*)&ipv4Addr);
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
CNetAddr::CNetAddr(const struct in6_addr& ipv6Addr)
|
|
|
|
{
|
2014-04-28 02:08:57 -07:00
|
|
|
SetRaw(NET_IPV6, (const uint8_t*)&ipv6Addr);
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
CNetAddr::CNetAddr(const char *pszIp, bool fAllowLookup)
|
|
|
|
{
|
|
|
|
Init();
|
|
|
|
std::vector<CNetAddr> vIP;
|
|
|
|
if (LookupHost(pszIp, vIP, 1, fAllowLookup))
|
|
|
|
*this = vIP[0];
|
|
|
|
}
|
|
|
|
|
|
|
|
CNetAddr::CNetAddr(const std::string &strIp, bool fAllowLookup)
|
|
|
|
{
|
|
|
|
Init();
|
|
|
|
std::vector<CNetAddr> vIP;
|
|
|
|
if (LookupHost(strIp.c_str(), vIP, 1, fAllowLookup))
|
|
|
|
*this = vIP[0];
|
|
|
|
}
|
|
|
|
|
2012-09-05 14:36:19 -07:00
|
|
|
unsigned int CNetAddr::GetByte(int n) const
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
return ip[15-n];
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsIPv4() const
|
|
|
|
{
|
|
|
|
return (memcmp(ip, pchIPv4, sizeof(pchIPv4)) == 0);
|
|
|
|
}
|
|
|
|
|
2012-03-31 08:58:25 -07:00
|
|
|
bool CNetAddr::IsIPv6() const
|
|
|
|
{
|
2012-10-07 05:53:17 -07:00
|
|
|
return (!IsIPv4() && !IsTor());
|
2012-03-31 08:58:25 -07:00
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
bool CNetAddr::IsRFC1918() const
|
|
|
|
{
|
|
|
|
return IsIPv4() && (
|
2012-09-18 12:07:58 -07:00
|
|
|
GetByte(3) == 10 ||
|
|
|
|
(GetByte(3) == 192 && GetByte(2) == 168) ||
|
2012-01-03 14:33:31 -08:00
|
|
|
(GetByte(3) == 172 && (GetByte(2) >= 16 && GetByte(2) <= 31)));
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC3927() const
|
|
|
|
{
|
|
|
|
return IsIPv4() && (GetByte(3) == 169 && GetByte(2) == 254);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC3849() const
|
|
|
|
{
|
|
|
|
return GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x0D && GetByte(12) == 0xB8;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC3964() const
|
|
|
|
{
|
|
|
|
return (GetByte(15) == 0x20 && GetByte(14) == 0x02);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC6052() const
|
|
|
|
{
|
|
|
|
static const unsigned char pchRFC6052[] = {0,0x64,0xFF,0x9B,0,0,0,0,0,0,0,0};
|
|
|
|
return (memcmp(ip, pchRFC6052, sizeof(pchRFC6052)) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC4380() const
|
|
|
|
{
|
|
|
|
return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0 && GetByte(12) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC4862() const
|
|
|
|
{
|
|
|
|
static const unsigned char pchRFC4862[] = {0xFE,0x80,0,0,0,0,0,0};
|
|
|
|
return (memcmp(ip, pchRFC4862, sizeof(pchRFC4862)) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC4193() const
|
|
|
|
{
|
|
|
|
return ((GetByte(15) & 0xFE) == 0xFC);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC6145() const
|
|
|
|
{
|
|
|
|
static const unsigned char pchRFC6145[] = {0,0,0,0,0,0,0,0,0xFF,0xFF,0,0};
|
|
|
|
return (memcmp(ip, pchRFC6145, sizeof(pchRFC6145)) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRFC4843() const
|
|
|
|
{
|
2012-02-17 05:40:21 -08:00
|
|
|
return (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x00 && (GetByte(12) & 0xF0) == 0x10);
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
2012-04-28 17:11:56 -07:00
|
|
|
bool CNetAddr::IsTor() const
|
2012-04-02 08:06:11 -07:00
|
|
|
{
|
|
|
|
return (memcmp(ip, pchOnionCat, sizeof(pchOnionCat)) == 0);
|
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
bool CNetAddr::IsLocal() const
|
|
|
|
{
|
|
|
|
// IPv4 loopback
|
|
|
|
if (IsIPv4() && (GetByte(3) == 127 || GetByte(3) == 0))
|
|
|
|
return true;
|
|
|
|
|
|
|
|
// IPv6 loopback (::1/128)
|
|
|
|
static const unsigned char pchLocal[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1};
|
|
|
|
if (memcmp(ip, pchLocal, 16) == 0)
|
|
|
|
return true;
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsMulticast() const
|
|
|
|
{
|
|
|
|
return (IsIPv4() && (GetByte(3) & 0xF0) == 0xE0)
|
|
|
|
|| (GetByte(15) == 0xFF);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsValid() const
|
|
|
|
{
|
2012-07-25 17:48:39 -07:00
|
|
|
// Cleanup 3-byte shifted addresses caused by garbage in size field
|
2012-01-03 14:33:31 -08:00
|
|
|
// of addr messages from versions before 0.2.9 checksum.
|
|
|
|
// Two consecutive addr messages look like this:
|
|
|
|
// header20 vectorlen3 addr26 addr26 addr26 header20 vectorlen3 addr26 addr26 addr26...
|
|
|
|
// so if the first length field is garbled, it reads the second batch
|
|
|
|
// of addr misaligned by 3 bytes.
|
|
|
|
if (memcmp(ip, pchIPv4+3, sizeof(pchIPv4)-3) == 0)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
// unspecified IPv6 address (::/128)
|
|
|
|
unsigned char ipNone[16] = {};
|
|
|
|
if (memcmp(ip, ipNone, 16) == 0)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
// documentation IPv6 address
|
|
|
|
if (IsRFC3849())
|
|
|
|
return false;
|
|
|
|
|
|
|
|
if (IsIPv4())
|
|
|
|
{
|
|
|
|
// INADDR_NONE
|
|
|
|
uint32_t ipNone = INADDR_NONE;
|
|
|
|
if (memcmp(ip+12, &ipNone, 4) == 0)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
// 0
|
|
|
|
ipNone = 0;
|
|
|
|
if (memcmp(ip+12, &ipNone, 4) == 0)
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::IsRoutable() const
|
|
|
|
{
|
2012-10-07 05:53:17 -07:00
|
|
|
return IsValid() && !(IsRFC1918() || IsRFC3927() || IsRFC4862() || (IsRFC4193() && !IsTor()) || IsRFC4843() || IsLocal());
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
2012-04-10 11:22:04 -07:00
|
|
|
enum Network CNetAddr::GetNetwork() const
|
|
|
|
{
|
|
|
|
if (!IsRoutable())
|
|
|
|
return NET_UNROUTABLE;
|
|
|
|
|
|
|
|
if (IsIPv4())
|
|
|
|
return NET_IPV4;
|
|
|
|
|
2012-04-28 17:11:56 -07:00
|
|
|
if (IsTor())
|
2012-04-10 11:22:04 -07:00
|
|
|
return NET_TOR;
|
|
|
|
|
|
|
|
return NET_IPV6;
|
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
std::string CNetAddr::ToStringIP() const
|
|
|
|
{
|
2012-04-28 17:11:56 -07:00
|
|
|
if (IsTor())
|
|
|
|
return EncodeBase32(&ip[6], 10) + ".onion";
|
2012-05-13 15:43:21 -07:00
|
|
|
CService serv(*this, 0);
|
|
|
|
struct sockaddr_storage sockaddr;
|
|
|
|
socklen_t socklen = sizeof(sockaddr);
|
|
|
|
if (serv.GetSockAddr((struct sockaddr*)&sockaddr, &socklen)) {
|
|
|
|
char name[1025] = "";
|
|
|
|
if (!getnameinfo((const struct sockaddr*)&sockaddr, socklen, name, sizeof(name), NULL, 0, NI_NUMERICHOST))
|
|
|
|
return std::string(name);
|
|
|
|
}
|
2012-04-28 17:11:56 -07:00
|
|
|
if (IsIPv4())
|
2012-01-03 14:33:31 -08:00
|
|
|
return strprintf("%u.%u.%u.%u", GetByte(3), GetByte(2), GetByte(1), GetByte(0));
|
|
|
|
else
|
|
|
|
return strprintf("%x:%x:%x:%x:%x:%x:%x:%x",
|
|
|
|
GetByte(15) << 8 | GetByte(14), GetByte(13) << 8 | GetByte(12),
|
|
|
|
GetByte(11) << 8 | GetByte(10), GetByte(9) << 8 | GetByte(8),
|
|
|
|
GetByte(7) << 8 | GetByte(6), GetByte(5) << 8 | GetByte(4),
|
|
|
|
GetByte(3) << 8 | GetByte(2), GetByte(1) << 8 | GetByte(0));
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string CNetAddr::ToString() const
|
|
|
|
{
|
|
|
|
return ToStringIP();
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator==(const CNetAddr& a, const CNetAddr& b)
|
|
|
|
{
|
|
|
|
return (memcmp(a.ip, b.ip, 16) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator!=(const CNetAddr& a, const CNetAddr& b)
|
|
|
|
{
|
|
|
|
return (memcmp(a.ip, b.ip, 16) != 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator<(const CNetAddr& a, const CNetAddr& b)
|
|
|
|
{
|
|
|
|
return (memcmp(a.ip, b.ip, 16) < 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::GetInAddr(struct in_addr* pipv4Addr) const
|
|
|
|
{
|
|
|
|
if (!IsIPv4())
|
|
|
|
return false;
|
|
|
|
memcpy(pipv4Addr, ip+12, 4);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CNetAddr::GetIn6Addr(struct in6_addr* pipv6Addr) const
|
|
|
|
{
|
|
|
|
memcpy(pipv6Addr, ip, 16);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// get canonical identifier of an address' group
|
|
|
|
// no two connections will be attempted to addresses with the same group
|
|
|
|
std::vector<unsigned char> CNetAddr::GetGroup() const
|
|
|
|
{
|
|
|
|
std::vector<unsigned char> vchRet;
|
2012-04-28 17:19:23 -07:00
|
|
|
int nClass = NET_IPV6;
|
2012-01-03 14:33:31 -08:00
|
|
|
int nStartByte = 0;
|
|
|
|
int nBits = 16;
|
|
|
|
|
2012-01-04 14:39:45 -08:00
|
|
|
// all local addresses belong to the same group
|
|
|
|
if (IsLocal())
|
|
|
|
{
|
2012-04-28 17:19:23 -07:00
|
|
|
nClass = 255;
|
2012-01-04 14:39:45 -08:00
|
|
|
nBits = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
// all unroutable addresses belong to the same group
|
2012-01-03 14:33:31 -08:00
|
|
|
if (!IsRoutable())
|
|
|
|
{
|
2012-04-28 17:19:23 -07:00
|
|
|
nClass = NET_UNROUTABLE;
|
2012-01-04 14:39:45 -08:00
|
|
|
nBits = 0;
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
// for IPv4 addresses, '1' + the 16 higher-order bits of the IP
|
|
|
|
// includes mapped IPv4, SIIT translated IPv4, and the well-known prefix
|
|
|
|
else if (IsIPv4() || IsRFC6145() || IsRFC6052())
|
|
|
|
{
|
2012-04-28 17:19:23 -07:00
|
|
|
nClass = NET_IPV4;
|
2012-01-03 14:33:31 -08:00
|
|
|
nStartByte = 12;
|
|
|
|
}
|
2012-07-25 17:48:39 -07:00
|
|
|
// for 6to4 tunnelled addresses, use the encapsulated IPv4 address
|
2012-01-03 14:33:31 -08:00
|
|
|
else if (IsRFC3964())
|
|
|
|
{
|
2012-04-28 17:19:23 -07:00
|
|
|
nClass = NET_IPV4;
|
2012-01-03 14:33:31 -08:00
|
|
|
nStartByte = 2;
|
|
|
|
}
|
2012-07-25 17:48:39 -07:00
|
|
|
// for Teredo-tunnelled IPv6 addresses, use the encapsulated IPv4 address
|
2012-01-03 14:33:31 -08:00
|
|
|
else if (IsRFC4380())
|
|
|
|
{
|
2012-04-28 17:19:23 -07:00
|
|
|
vchRet.push_back(NET_IPV4);
|
2012-01-03 14:33:31 -08:00
|
|
|
vchRet.push_back(GetByte(3) ^ 0xFF);
|
|
|
|
vchRet.push_back(GetByte(2) ^ 0xFF);
|
|
|
|
return vchRet;
|
|
|
|
}
|
2012-04-28 17:11:56 -07:00
|
|
|
else if (IsTor())
|
|
|
|
{
|
|
|
|
nClass = NET_TOR;
|
|
|
|
nStartByte = 6;
|
|
|
|
nBits = 4;
|
|
|
|
}
|
2012-01-03 14:33:31 -08:00
|
|
|
// for he.net, use /36 groups
|
2013-10-04 05:46:45 -07:00
|
|
|
else if (GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x04 && GetByte(12) == 0x70)
|
2012-01-03 14:33:31 -08:00
|
|
|
nBits = 36;
|
|
|
|
// for the rest of the IPv6 network, use /32 groups
|
|
|
|
else
|
|
|
|
nBits = 32;
|
|
|
|
|
|
|
|
vchRet.push_back(nClass);
|
|
|
|
while (nBits >= 8)
|
|
|
|
{
|
|
|
|
vchRet.push_back(GetByte(15 - nStartByte));
|
|
|
|
nStartByte++;
|
|
|
|
nBits -= 8;
|
|
|
|
}
|
|
|
|
if (nBits > 0)
|
|
|
|
vchRet.push_back(GetByte(15 - nStartByte) | ((1 << nBits) - 1));
|
|
|
|
|
|
|
|
return vchRet;
|
|
|
|
}
|
|
|
|
|
2013-04-12 22:13:08 -07:00
|
|
|
uint64_t CNetAddr::GetHash() const
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
|
|
|
uint256 hash = Hash(&ip[0], &ip[16]);
|
2013-04-12 22:13:08 -07:00
|
|
|
uint64_t nRet;
|
2012-01-03 14:33:31 -08:00
|
|
|
memcpy(&nRet, &hash, sizeof(nRet));
|
|
|
|
return nRet;
|
|
|
|
}
|
|
|
|
|
|
|
|
void CNetAddr::print() const
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("CNetAddr(%s)\n", ToString());
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
2012-05-01 08:32:42 -07:00
|
|
|
// private extensions to enum Network, only returned by GetExtNetwork,
|
|
|
|
// and only used in GetReachabilityFrom
|
|
|
|
static const int NET_UNKNOWN = NET_MAX + 0;
|
|
|
|
static const int NET_TEREDO = NET_MAX + 1;
|
|
|
|
int static GetExtNetwork(const CNetAddr *addr)
|
|
|
|
{
|
|
|
|
if (addr == NULL)
|
|
|
|
return NET_UNKNOWN;
|
|
|
|
if (addr->IsRFC4380())
|
|
|
|
return NET_TEREDO;
|
|
|
|
return addr->GetNetwork();
|
|
|
|
}
|
|
|
|
|
|
|
|
/** Calculates a metric for how reachable (*this) is from a given partner */
|
2012-02-12 04:45:24 -08:00
|
|
|
int CNetAddr::GetReachabilityFrom(const CNetAddr *paddrPartner) const
|
|
|
|
{
|
2012-05-01 08:32:42 -07:00
|
|
|
enum Reachability {
|
|
|
|
REACH_UNREACHABLE,
|
|
|
|
REACH_DEFAULT,
|
|
|
|
REACH_TEREDO,
|
|
|
|
REACH_IPV6_WEAK,
|
|
|
|
REACH_IPV4,
|
|
|
|
REACH_IPV6_STRONG,
|
|
|
|
REACH_PRIVATE
|
|
|
|
};
|
|
|
|
|
|
|
|
if (!IsRoutable())
|
|
|
|
return REACH_UNREACHABLE;
|
|
|
|
|
|
|
|
int ourNet = GetExtNetwork(this);
|
|
|
|
int theirNet = GetExtNetwork(paddrPartner);
|
|
|
|
bool fTunnel = IsRFC3964() || IsRFC6052() || IsRFC6145();
|
|
|
|
|
|
|
|
switch(theirNet) {
|
|
|
|
case NET_IPV4:
|
|
|
|
switch(ourNet) {
|
|
|
|
default: return REACH_DEFAULT;
|
|
|
|
case NET_IPV4: return REACH_IPV4;
|
|
|
|
}
|
|
|
|
case NET_IPV6:
|
|
|
|
switch(ourNet) {
|
|
|
|
default: return REACH_DEFAULT;
|
|
|
|
case NET_TEREDO: return REACH_TEREDO;
|
|
|
|
case NET_IPV4: return REACH_IPV4;
|
2012-07-25 17:48:39 -07:00
|
|
|
case NET_IPV6: return fTunnel ? REACH_IPV6_WEAK : REACH_IPV6_STRONG; // only prefer giving our IPv6 address if it's not tunnelled
|
2012-05-01 08:32:42 -07:00
|
|
|
}
|
|
|
|
case NET_TOR:
|
|
|
|
switch(ourNet) {
|
|
|
|
default: return REACH_DEFAULT;
|
|
|
|
case NET_IPV4: return REACH_IPV4; // Tor users can connect to IPv4 as well
|
|
|
|
case NET_TOR: return REACH_PRIVATE;
|
|
|
|
}
|
|
|
|
case NET_TEREDO:
|
|
|
|
switch(ourNet) {
|
|
|
|
default: return REACH_DEFAULT;
|
|
|
|
case NET_TEREDO: return REACH_TEREDO;
|
|
|
|
case NET_IPV6: return REACH_IPV6_WEAK;
|
|
|
|
case NET_IPV4: return REACH_IPV4;
|
|
|
|
}
|
|
|
|
case NET_UNKNOWN:
|
|
|
|
case NET_UNROUTABLE:
|
|
|
|
default:
|
|
|
|
switch(ourNet) {
|
|
|
|
default: return REACH_DEFAULT;
|
|
|
|
case NET_TEREDO: return REACH_TEREDO;
|
|
|
|
case NET_IPV6: return REACH_IPV6_WEAK;
|
|
|
|
case NET_IPV4: return REACH_IPV4;
|
2012-10-07 05:53:17 -07:00
|
|
|
case NET_TOR: return REACH_PRIVATE; // either from Tor, or don't care about our address
|
2012-05-01 08:32:42 -07:00
|
|
|
}
|
|
|
|
}
|
2012-02-12 04:45:24 -08:00
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
void CService::Init()
|
|
|
|
{
|
|
|
|
port = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService()
|
|
|
|
{
|
|
|
|
Init();
|
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService(const CNetAddr& cip, unsigned short portIn) : CNetAddr(cip), port(portIn)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService(const struct in_addr& ipv4Addr, unsigned short portIn) : CNetAddr(ipv4Addr), port(portIn)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService(const struct in6_addr& ipv6Addr, unsigned short portIn) : CNetAddr(ipv6Addr), port(portIn)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService(const struct sockaddr_in& addr) : CNetAddr(addr.sin_addr), port(ntohs(addr.sin_port))
|
|
|
|
{
|
|
|
|
assert(addr.sin_family == AF_INET);
|
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService(const struct sockaddr_in6 &addr) : CNetAddr(addr.sin6_addr), port(ntohs(addr.sin6_port))
|
|
|
|
{
|
|
|
|
assert(addr.sin6_family == AF_INET6);
|
|
|
|
}
|
|
|
|
|
2012-05-11 06:28:59 -07:00
|
|
|
bool CService::SetSockAddr(const struct sockaddr *paddr)
|
|
|
|
{
|
|
|
|
switch (paddr->sa_family) {
|
|
|
|
case AF_INET:
|
|
|
|
*this = CService(*(const struct sockaddr_in*)paddr);
|
|
|
|
return true;
|
|
|
|
case AF_INET6:
|
|
|
|
*this = CService(*(const struct sockaddr_in6*)paddr);
|
|
|
|
return true;
|
|
|
|
default:
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-01-03 14:33:31 -08:00
|
|
|
CService::CService(const char *pszIpPort, bool fAllowLookup)
|
|
|
|
{
|
|
|
|
Init();
|
|
|
|
CService ip;
|
|
|
|
if (Lookup(pszIpPort, ip, 0, fAllowLookup))
|
|
|
|
*this = ip;
|
|
|
|
}
|
|
|
|
|
2012-01-16 17:12:35 -08:00
|
|
|
CService::CService(const char *pszIpPort, int portDefault, bool fAllowLookup)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
2012-01-16 17:12:35 -08:00
|
|
|
Init();
|
|
|
|
CService ip;
|
|
|
|
if (Lookup(pszIpPort, ip, portDefault, fAllowLookup))
|
|
|
|
*this = ip;
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
CService::CService(const std::string &strIpPort, bool fAllowLookup)
|
|
|
|
{
|
|
|
|
Init();
|
|
|
|
CService ip;
|
|
|
|
if (Lookup(strIpPort.c_str(), ip, 0, fAllowLookup))
|
|
|
|
*this = ip;
|
|
|
|
}
|
|
|
|
|
2012-01-16 17:12:35 -08:00
|
|
|
CService::CService(const std::string &strIpPort, int portDefault, bool fAllowLookup)
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
2012-01-16 17:12:35 -08:00
|
|
|
Init();
|
|
|
|
CService ip;
|
|
|
|
if (Lookup(strIpPort.c_str(), ip, portDefault, fAllowLookup))
|
|
|
|
*this = ip;
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
unsigned short CService::GetPort() const
|
|
|
|
{
|
|
|
|
return port;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator==(const CService& a, const CService& b)
|
|
|
|
{
|
|
|
|
return (CNetAddr)a == (CNetAddr)b && a.port == b.port;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator!=(const CService& a, const CService& b)
|
|
|
|
{
|
|
|
|
return (CNetAddr)a != (CNetAddr)b || a.port != b.port;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator<(const CService& a, const CService& b)
|
|
|
|
{
|
|
|
|
return (CNetAddr)a < (CNetAddr)b || ((CNetAddr)a == (CNetAddr)b && a.port < b.port);
|
|
|
|
}
|
|
|
|
|
2012-05-11 06:28:59 -07:00
|
|
|
bool CService::GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const
|
2012-01-03 14:33:31 -08:00
|
|
|
{
|
2012-05-11 06:28:59 -07:00
|
|
|
if (IsIPv4()) {
|
2012-06-04 22:32:27 -07:00
|
|
|
if (*addrlen < (socklen_t)sizeof(struct sockaddr_in))
|
2012-05-11 06:28:59 -07:00
|
|
|
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()) {
|
2012-06-04 22:32:27 -07:00
|
|
|
if (*addrlen < (socklen_t)sizeof(struct sockaddr_in6))
|
2012-05-11 06:28:59 -07:00
|
|
|
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_family = AF_INET6;
|
|
|
|
paddrin6->sin6_port = htons(port);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
2012-01-03 14:33:31 -08:00
|
|
|
|
|
|
|
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
|
|
|
|
{
|
2012-09-05 14:36:19 -07:00
|
|
|
return strprintf("%u", port);
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
std::string CService::ToStringIPPort() const
|
|
|
|
{
|
2012-10-07 05:53:17 -07:00
|
|
|
if (IsIPv4() || IsTor()) {
|
2012-03-31 08:58:25 -07:00
|
|
|
return ToStringIP() + ":" + ToStringPort();
|
|
|
|
} else {
|
|
|
|
return "[" + ToStringIP() + "]:" + ToStringPort();
|
|
|
|
}
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
std::string CService::ToString() const
|
|
|
|
{
|
|
|
|
return ToStringIPPort();
|
|
|
|
}
|
|
|
|
|
|
|
|
void CService::print() const
|
|
|
|
{
|
2014-01-16 07:15:27 -08:00
|
|
|
LogPrintf("CService(%s)\n", ToString());
|
2012-01-03 14:33:31 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
void CService::SetPort(unsigned short portIn)
|
|
|
|
{
|
|
|
|
port = portIn;
|
|
|
|
}
|
2014-04-28 02:08:57 -07:00
|
|
|
|
|
|
|
CSubNet::CSubNet():
|
|
|
|
valid(false)
|
|
|
|
{
|
|
|
|
memset(netmask, 0, sizeof(netmask));
|
|
|
|
}
|
|
|
|
|
|
|
|
CSubNet::CSubNet(const std::string &strSubnet, bool fAllowLookup)
|
|
|
|
{
|
|
|
|
size_t slash = strSubnet.find_last_of('/');
|
|
|
|
std::vector<CNetAddr> vIP;
|
|
|
|
|
|
|
|
valid = true;
|
|
|
|
// Default to /32 (IPv4) or /128 (IPv6), i.e. match single address
|
|
|
|
memset(netmask, 255, sizeof(netmask));
|
|
|
|
|
|
|
|
std::string strAddress = strSubnet.substr(0, slash);
|
|
|
|
if (LookupHost(strAddress.c_str(), vIP, 1, fAllowLookup))
|
|
|
|
{
|
|
|
|
network = vIP[0];
|
|
|
|
if (slash != strSubnet.npos)
|
|
|
|
{
|
|
|
|
std::string strNetmask = strSubnet.substr(slash + 1);
|
|
|
|
int32_t n;
|
|
|
|
// IPv4 addresses start at offset 12, and first 12 bytes must match, so just offset n
|
|
|
|
int noffset = network.IsIPv4() ? (12 * 8) : 0;
|
|
|
|
if (ParseInt32(strNetmask, &n)) // If valid number, assume /24 symtex
|
|
|
|
{
|
|
|
|
if(n >= 0 && n <= (128 - noffset)) // Only valid if in range of bits of address
|
|
|
|
{
|
|
|
|
n += noffset;
|
|
|
|
// Clear bits [n..127]
|
|
|
|
for (; n < 128; ++n)
|
|
|
|
netmask[n>>3] &= ~(1<<(n&7));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
valid = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else // If not a valid number, try full netmask syntax
|
|
|
|
{
|
|
|
|
if (LookupHost(strNetmask.c_str(), vIP, 1, false)) // Never allow lookup for netmask
|
|
|
|
{
|
|
|
|
// Remember: GetByte returns bytes in reversed order
|
|
|
|
// Copy only the *last* four bytes in case of IPv4, the rest of the mask should stay 1's as
|
|
|
|
// we don't want pchIPv4 to be part of the mask.
|
|
|
|
int asize = network.IsIPv4() ? 4 : 16;
|
|
|
|
for(int x=0; x<asize; ++x)
|
|
|
|
netmask[15-x] = vIP[0].GetByte(x);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
valid = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
valid = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
bool CSubNet::Match(const CNetAddr &addr) const
|
|
|
|
{
|
|
|
|
if (!valid || !addr.IsValid())
|
|
|
|
return false;
|
|
|
|
for(int x=0; x<16; ++x)
|
|
|
|
if ((addr.GetByte(x) & netmask[15-x]) != network.GetByte(x))
|
|
|
|
return false;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string CSubNet::ToString() const
|
|
|
|
{
|
|
|
|
std::string strNetmask;
|
|
|
|
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);
|
|
|
|
}
|