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Myriadcoin 0.11 port

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This commit is contained in:
nzsquirrell
2016-02-24 20:34:22 +13:00
parent 5e70510c51
commit 5efd59f935
991 changed files with 109184 additions and 168045 deletions
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src/netbase.cpp
+471 -222
View File
@@ -1,45 +1,70 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// Copyright (c) 2009-2014 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifdef HAVE_CONFIG_H
#include "config/bitcoin-config.h"
#endif
#include "netbase.h"
#include "hash.h"
#include "sync.h"
#include "uint256.h"
#include "random.h"
#include "util.h"
#include "utilstrencodings.h"
#ifdef HAVE_GETADDRINFO_A
#include <netdb.h>
#endif
#ifndef WIN32
#if HAVE_INET_PTON
#include <arpa/inet.h>
#endif
#include <fcntl.h>
#endif
#include <boost/algorithm/string/case_conv.hpp> // for to_lower()
#include <boost/algorithm/string/predicate.hpp> // for startswith() and endswith()
#include <boost/thread.hpp>
#if !defined(HAVE_MSG_NOSIGNAL) && !defined(MSG_NOSIGNAL)
#define MSG_NOSIGNAL 0
#endif
using namespace std;
// Settings
static proxyType proxyInfo[NET_MAX];
static proxyType nameproxyInfo;
static proxyType nameProxy;
static CCriticalSection cs_proxyInfos;
int nConnectTimeout = 5000;
int nConnectTimeout = DEFAULT_CONNECT_TIMEOUT;
bool fNameLookup = false;
static const unsigned char pchIPv4[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff };
// Need ample time for negotiation for very slow proxies such as Tor (milliseconds)
static const int SOCKS5_RECV_TIMEOUT = 20 * 1000;
enum Network ParseNetwork(std::string net) {
boost::to_lower(net);
if (net == "ipv4") return NET_IPV4;
if (net == "ipv6") return NET_IPV6;
if (net == "tor") return NET_TOR;
if (net == "tor" || net == "onion") return NET_TOR;
return NET_UNROUTABLE;
}
std::string GetNetworkName(enum Network net) {
switch(net)
{
case NET_IPV4: return "ipv4";
case NET_IPV6: return "ipv6";
case NET_TOR: return "onion";
default: return "";
}
}
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
@@ -47,12 +72,10 @@ void SplitHostPort(std::string in, int &portOut, std::string &hostOut) {
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)) {
char *endp = NULL;
int n = strtol(in.c_str() + colon + 1, &endp, 10);
if (endp && *endp == 0 && n >= 0) {
int32_t n;
if (ParseInt32(in.substr(colon + 1), &n) && n > 0 && n < 0x10000) {
in = in.substr(0, colon);
if (n > 0 && n < 0x10000)
portOut = n;
portOut = n;
}
}
if (in.size()>0 && in[0] == '[' && in[in.size()-1] == ']')
@@ -73,9 +96,30 @@ bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsign
}
}
#ifdef HAVE_GETADDRINFO_A
struct in_addr ipv4_addr;
#ifdef HAVE_INET_PTON
if (inet_pton(AF_INET, pszName, &ipv4_addr) > 0) {
vIP.push_back(CNetAddr(ipv4_addr));
return true;
}
struct in6_addr ipv6_addr;
if (inet_pton(AF_INET6, pszName, &ipv6_addr) > 0) {
vIP.push_back(CNetAddr(ipv6_addr));
return true;
}
#else
ipv4_addr.s_addr = inet_addr(pszName);
if (ipv4_addr.s_addr != INADDR_NONE) {
vIP.push_back(CNetAddr(ipv4_addr));
return true;
}
#endif
#endif
struct addrinfo aiHint;
memset(&aiHint, 0, sizeof(struct addrinfo));
aiHint.ai_socktype = SOCK_STREAM;
aiHint.ai_protocol = IPPROTO_TCP;
aiHint.ai_family = AF_UNSPEC;
@@ -84,8 +128,33 @@ bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsign
#else
aiHint.ai_flags = fAllowLookup ? AI_ADDRCONFIG : AI_NUMERICHOST;
#endif
struct addrinfo *aiRes = NULL;
#ifdef HAVE_GETADDRINFO_A
struct gaicb gcb, *query = &gcb;
memset(query, 0, sizeof(struct gaicb));
gcb.ar_name = pszName;
gcb.ar_request = &aiHint;
int nErr = getaddrinfo_a(GAI_NOWAIT, &query, 1, NULL);
if (nErr)
return false;
do {
// Should set the timeout limit to a resonable value to avoid
// generating unnecessary checking call during the polling loop,
// while it can still response to stop request quick enough.
// 2 seconds looks fine in our situation.
struct timespec ts = { 2, 0 };
gai_suspend(&query, 1, &ts);
boost::this_thread::interruption_point();
nErr = gai_error(query);
if (0 == nErr)
aiRes = query->ar_result;
} while (nErr == EAI_INPROGRESS);
#else
int nErr = getaddrinfo(pszName, NULL, &aiHint, &aiRes);
#endif
if (nErr)
return false;
@@ -125,11 +194,6 @@ bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nM
return LookupIntern(strHost.c_str(), vIP, nMaxSolutions, fAllowLookup);
}
bool LookupHostNumeric(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions)
{
return LookupHost(pszName, vIP, nMaxSolutions, false);
}
bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions)
{
if (pszName[0] == 0)
@@ -163,104 +227,158 @@ bool LookupNumeric(const char *pszName, CService& addr, int portDefault)
return Lookup(pszName, addr, portDefault, false);
}
bool static Socks4(const CService &addrDest, SOCKET& hSocket)
/**
* Convert milliseconds to a struct timeval for select.
*/
struct timeval static MillisToTimeval(int64_t nTimeout)
{
LogPrintf("SOCKS4 connecting %s\n", addrDest.ToString());
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;
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");
}
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)
LogPrintf("ERROR: Proxy returned error %d\n", pchRet[1]);
return false;
}
LogPrintf("SOCKS4 connected %s\n", addrDest.ToString());
return true;
struct timeval timeout;
timeout.tv_sec = nTimeout / 1000;
timeout.tv_usec = (nTimeout % 1000) * 1000;
return timeout;
}
bool static Socks5(string strDest, int port, SOCKET& hSocket)
/**
* Read bytes from socket. This will either read the full number of bytes requested
* or return False on error or timeout.
* This function can be interrupted by boost thread interrupt.
*
* @param data Buffer to receive into
* @param len Length of data to receive
* @param timeout Timeout in milliseconds for receive operation
*
* @note This function requires that hSocket is in non-blocking mode.
*/
bool static InterruptibleRecv(char* data, size_t len, int timeout, SOCKET& hSocket)
{
int64_t curTime = GetTimeMillis();
int64_t endTime = curTime + timeout;
// Maximum time to wait in one select call. It will take up until this time (in millis)
// to break off in case of an interruption.
const int64_t maxWait = 1000;
while (len > 0 && curTime < endTime) {
ssize_t ret = recv(hSocket, data, len, 0); // Optimistically try the recv first
if (ret > 0) {
len -= ret;
data += ret;
} else if (ret == 0) { // Unexpected disconnection
return false;
} else { // Other error or blocking
int nErr = WSAGetLastError();
if (nErr == WSAEINPROGRESS || nErr == WSAEWOULDBLOCK || nErr == WSAEINVAL) {
struct timeval tval = MillisToTimeval(std::min(endTime - curTime, maxWait));
fd_set fdset;
FD_ZERO(&fdset);
FD_SET(hSocket, &fdset);
int nRet = select(hSocket + 1, &fdset, NULL, NULL, &tval);
if (nRet == SOCKET_ERROR) {
return false;
}
} else {
return false;
}
}
boost::this_thread::interruption_point();
curTime = GetTimeMillis();
}
return len == 0;
}
struct ProxyCredentials
{
std::string username;
std::string password;
};
/** Connect using SOCKS5 (as described in RFC1928) */
static bool Socks5(const std::string& strDest, int port, const ProxyCredentials *auth, SOCKET& hSocket)
{
LogPrintf("SOCKS5 connecting %s\n", strDest);
if (strDest.size() > 255)
{
closesocket(hSocket);
if (strDest.size() > 255) {
CloseSocket(hSocket);
return error("Hostname too long");
}
char pszSocks5Init[] = "\5\1\0";
ssize_t nSize = sizeof(pszSocks5Init) - 1;
ssize_t ret = send(hSocket, pszSocks5Init, nSize, MSG_NOSIGNAL);
if (ret != nSize)
{
closesocket(hSocket);
// Accepted authentication methods
std::vector<uint8_t> vSocks5Init;
vSocks5Init.push_back(0x05);
if (auth) {
vSocks5Init.push_back(0x02); // # METHODS
vSocks5Init.push_back(0x00); // X'00' NO AUTHENTICATION REQUIRED
vSocks5Init.push_back(0x02); // X'02' USERNAME/PASSWORD (RFC1929)
} else {
vSocks5Init.push_back(0x01); // # METHODS
vSocks5Init.push_back(0x00); // X'00' NO AUTHENTICATION REQUIRED
}
ssize_t ret = send(hSocket, (const char*)begin_ptr(vSocks5Init), vSocks5Init.size(), MSG_NOSIGNAL);
if (ret != (ssize_t)vSocks5Init.size()) {
CloseSocket(hSocket);
return error("Error sending to proxy");
}
char pchRet1[2];
if (recv(hSocket, pchRet1, 2, 0) != 2)
{
closesocket(hSocket);
if (!InterruptibleRecv(pchRet1, 2, SOCKS5_RECV_TIMEOUT, hSocket)) {
CloseSocket(hSocket);
return error("Error reading proxy response");
}
if (pchRet1[0] != 0x05 || pchRet1[1] != 0x00)
{
closesocket(hSocket);
if (pchRet1[0] != 0x05) {
CloseSocket(hSocket);
return error("Proxy failed to initialize");
}
string strSocks5("\5\1");
strSocks5 += '\000'; strSocks5 += '\003';
strSocks5 += static_cast<char>(std::min((int)strDest.size(), 255));
strSocks5 += strDest;
strSocks5 += static_cast<char>((port >> 8) & 0xFF);
strSocks5 += static_cast<char>((port >> 0) & 0xFF);
ret = send(hSocket, strSocks5.c_str(), strSocks5.size(), MSG_NOSIGNAL);
if (ret != (ssize_t)strSocks5.size())
{
closesocket(hSocket);
if (pchRet1[1] == 0x02 && auth) {
// Perform username/password authentication (as described in RFC1929)
std::vector<uint8_t> vAuth;
vAuth.push_back(0x01);
if (auth->username.size() > 255 || auth->password.size() > 255)
return error("Proxy username or password too long");
vAuth.push_back(auth->username.size());
vAuth.insert(vAuth.end(), auth->username.begin(), auth->username.end());
vAuth.push_back(auth->password.size());
vAuth.insert(vAuth.end(), auth->password.begin(), auth->password.end());
ret = send(hSocket, (const char*)begin_ptr(vAuth), vAuth.size(), MSG_NOSIGNAL);
if (ret != (ssize_t)vAuth.size()) {
CloseSocket(hSocket);
return error("Error sending authentication to proxy");
}
LogPrint("proxy", "SOCKS5 sending proxy authentication %s:%s\n", auth->username, auth->password);
char pchRetA[2];
if (!InterruptibleRecv(pchRetA, 2, SOCKS5_RECV_TIMEOUT, hSocket)) {
CloseSocket(hSocket);
return error("Error reading proxy authentication response");
}
if (pchRetA[0] != 0x01 || pchRetA[1] != 0x00) {
CloseSocket(hSocket);
return error("Proxy authentication unsuccesful");
}
} else if (pchRet1[1] == 0x00) {
// Perform no authentication
} else {
CloseSocket(hSocket);
return error("Proxy requested wrong authentication method %02x", pchRet1[1]);
}
std::vector<uint8_t> vSocks5;
vSocks5.push_back(0x05); // VER protocol version
vSocks5.push_back(0x01); // CMD CONNECT
vSocks5.push_back(0x00); // RSV Reserved
vSocks5.push_back(0x03); // ATYP DOMAINNAME
vSocks5.push_back(strDest.size()); // Length<=255 is checked at beginning of function
vSocks5.insert(vSocks5.end(), strDest.begin(), strDest.end());
vSocks5.push_back((port >> 8) & 0xFF);
vSocks5.push_back((port >> 0) & 0xFF);
ret = send(hSocket, (const char*)begin_ptr(vSocks5), vSocks5.size(), MSG_NOSIGNAL);
if (ret != (ssize_t)vSocks5.size()) {
CloseSocket(hSocket);
return error("Error sending to proxy");
}
char pchRet2[4];
if (recv(hSocket, pchRet2, 4, 0) != 4)
{
closesocket(hSocket);
if (!InterruptibleRecv(pchRet2, 4, SOCKS5_RECV_TIMEOUT, hSocket)) {
CloseSocket(hSocket);
return error("Error reading proxy response");
}
if (pchRet2[0] != 0x05)
{
closesocket(hSocket);
if (pchRet2[0] != 0x05) {
CloseSocket(hSocket);
return error("Proxy failed to accept request");
}
if (pchRet2[1] != 0x00)
{
closesocket(hSocket);
if (pchRet2[1] != 0x00) {
CloseSocket(hSocket);
switch (pchRet2[1])
{
case 0x01: return error("Proxy error: general failure");
@@ -274,37 +392,34 @@ bool static Socks5(string strDest, int port, SOCKET& hSocket)
default: return error("Proxy error: unknown");
}
}
if (pchRet2[2] != 0x00)
{
closesocket(hSocket);
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 0x01: ret = InterruptibleRecv(pchRet3, 4, SOCKS5_RECV_TIMEOUT, hSocket); break;
case 0x04: ret = InterruptibleRecv(pchRet3, 16, SOCKS5_RECV_TIMEOUT, hSocket); break;
case 0x03:
{
ret = recv(hSocket, pchRet3, 1, 0) != 1;
if (ret) {
closesocket(hSocket);
ret = InterruptibleRecv(pchRet3, 1, SOCKS5_RECV_TIMEOUT, hSocket);
if (!ret) {
CloseSocket(hSocket);
return error("Error reading from proxy");
}
int nRecv = pchRet3[0];
ret = recv(hSocket, pchRet3, nRecv, 0) != nRecv;
ret = InterruptibleRecv(pchRet3, nRecv, SOCKS5_RECV_TIMEOUT, hSocket);
break;
}
default: closesocket(hSocket); return error("Error: malformed proxy response");
default: CloseSocket(hSocket); return error("Error: malformed proxy response");
}
if (ret)
{
closesocket(hSocket);
if (!ret) {
CloseSocket(hSocket);
return error("Error reading from proxy");
}
if (recv(hSocket, pchRet3, 2, 0) != 2)
{
closesocket(hSocket);
if (!InterruptibleRecv(pchRet3, 2, SOCKS5_RECV_TIMEOUT, hSocket)) {
CloseSocket(hSocket);
return error("Error reading from proxy");
}
LogPrintf("SOCKS5 connected %s\n", strDest);
@@ -325,32 +440,24 @@ bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRe
SOCKET hSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP);
if (hSocket == INVALID_SOCKET)
return false;
#ifdef SO_NOSIGPIPE
int set = 1;
// Different way of disabling SIGPIPE on BSD
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;
}
// Set to non-blocking
if (!SetSocketNonBlocking(hSocket, true))
return error("ConnectSocketDirectly: Setting socket to non-blocking failed, error %s\n", NetworkErrorString(WSAGetLastError()));
if (connect(hSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR)
{
int nErr = WSAGetLastError();
// WSAEINVAL is here because some legacy version of winsock uses it
if (WSAGetLastError() == WSAEINPROGRESS || WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINVAL)
if (nErr == WSAEINPROGRESS || nErr == WSAEWOULDBLOCK || nErr == WSAEINVAL)
{
struct timeval timeout;
timeout.tv_sec = nTimeout / 1000;
timeout.tv_usec = (nTimeout % 1000) * 1000;
struct timeval timeout = MillisToTimeval(nTimeout);
fd_set fdset;
FD_ZERO(&fdset);
FD_SET(hSocket, &fdset);
@@ -358,13 +465,13 @@ bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRe
if (nRet == 0)
{
LogPrint("net", "connection to %s timeout\n", addrConnect.ToString());
closesocket(hSocket);
CloseSocket(hSocket);
return false;
}
if (nRet == SOCKET_ERROR)
{
LogPrintf("select() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError()));
closesocket(hSocket);
CloseSocket(hSocket);
return false;
}
socklen_t nRetSize = sizeof(nRet);
@@ -375,13 +482,13 @@ bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRe
#endif
{
LogPrintf("getsockopt() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError()));
closesocket(hSocket);
CloseSocket(hSocket);
return false;
}
if (nRet != 0)
{
LogPrintf("connect() to %s failed after select(): %s\n", addrConnect.ToString(), NetworkErrorString(nRet));
closesocket(hSocket);
CloseSocket(hSocket);
return false;
}
}
@@ -392,150 +499,124 @@ bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRe
#endif
{
LogPrintf("connect() to %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError()));
closesocket(hSocket);
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);
if (fcntl(hSocket, F_SETFL, fFlags & ~O_NONBLOCK) == SOCKET_ERROR)
#endif
{
closesocket(hSocket);
return false;
}
hSocketRet = hSocket;
return true;
}
bool SetProxy(enum Network net, CService addrProxy, int nSocksVersion) {
bool SetProxy(enum Network net, const proxyType &addrProxy) {
assert(net >= 0 && net < NET_MAX);
if (nSocksVersion != 0 && nSocksVersion != 4 && nSocksVersion != 5)
return false;
if (nSocksVersion != 0 && !addrProxy.IsValid())
if (!addrProxy.IsValid())
return false;
LOCK(cs_proxyInfos);
proxyInfo[net] = std::make_pair(addrProxy, nSocksVersion);
proxyInfo[net] = addrProxy;
return true;
}
bool GetProxy(enum Network net, proxyType &proxyInfoOut) {
assert(net >= 0 && net < NET_MAX);
LOCK(cs_proxyInfos);
if (!proxyInfo[net].second)
if (!proxyInfo[net].IsValid())
return false;
proxyInfoOut = proxyInfo[net];
return true;
}
bool SetNameProxy(CService addrProxy, int nSocksVersion) {
if (nSocksVersion != 0 && nSocksVersion != 5)
return false;
if (nSocksVersion != 0 && !addrProxy.IsValid())
bool SetNameProxy(const proxyType &addrProxy) {
if (!addrProxy.IsValid())
return false;
LOCK(cs_proxyInfos);
nameproxyInfo = std::make_pair(addrProxy, nSocksVersion);
nameProxy = addrProxy;
return true;
}
bool GetNameProxy(proxyType &nameproxyInfoOut) {
bool GetNameProxy(proxyType &nameProxyOut) {
LOCK(cs_proxyInfos);
if (!nameproxyInfo.second)
if(!nameProxy.IsValid())
return false;
nameproxyInfoOut = nameproxyInfo;
nameProxyOut = nameProxy;
return true;
}
bool HaveNameProxy() {
LOCK(cs_proxyInfos);
return nameproxyInfo.second != 0;
return nameProxy.IsValid();
}
bool IsProxy(const CNetAddr &addr) {
LOCK(cs_proxyInfos);
for (int i = 0; i < NET_MAX; i++) {
if (proxyInfo[i].second && (addr == (CNetAddr)proxyInfo[i].first))
if (addr == (CNetAddr)proxyInfo[i].proxy)
return true;
}
return false;
}
bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout)
static bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed)
{
proxyType proxy;
// no proxy needed
if (!GetProxy(addrDest.GetNetwork(), proxy))
return ConnectSocketDirectly(addrDest, hSocketRet, nTimeout);
SOCKET hSocket = INVALID_SOCKET;
// first connect to proxy server
if (!ConnectSocketDirectly(proxy.first, hSocket, nTimeout))
if (!ConnectSocketDirectly(proxy.proxy, hSocket, nTimeout)) {
if (outProxyConnectionFailed)
*outProxyConnectionFailed = true;
return false;
}
// do socks negotiation
switch (proxy.second) {
case 4:
if (!Socks4(addrDest, hSocket))
if (proxy.randomize_credentials) {
ProxyCredentials random_auth;
random_auth.username = strprintf("%i", insecure_rand());
random_auth.password = strprintf("%i", insecure_rand());
if (!Socks5(strDest, (unsigned short)port, &random_auth, hSocket))
return false;
break;
case 5:
if (!Socks5(addrDest.ToStringIP(), addrDest.GetPort(), hSocket))
} else {
if (!Socks5(strDest, (unsigned short)port, 0, hSocket))
return false;
break;
default:
closesocket(hSocket);
return false;
}
hSocketRet = hSocket;
return true;
}
bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout)
bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed)
{
string strDest;
proxyType proxy;
if (outProxyConnectionFailed)
*outProxyConnectionFailed = false;
if (GetProxy(addrDest.GetNetwork(), proxy))
return ConnectThroughProxy(proxy, addrDest.ToStringIP(), addrDest.GetPort(), hSocketRet, nTimeout, outProxyConnectionFailed);
else // no proxy needed (none set for target network)
return ConnectSocketDirectly(addrDest, hSocketRet, nTimeout);
}
bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout, bool *outProxyConnectionFailed)
{
std::string strDest;
int port = portDefault;
SplitHostPort(string(pszDest), port, strDest);
SOCKET hSocket = INVALID_SOCKET;
if (outProxyConnectionFailed)
*outProxyConnectionFailed = false;
proxyType nameproxy;
GetNameProxy(nameproxy);
SplitHostPort(std::string(pszDest), port, strDest);
CService addrResolved(CNetAddr(strDest, fNameLookup && !nameproxy.second), port);
proxyType nameProxy;
GetNameProxy(nameProxy);
CService addrResolved(CNetAddr(strDest, fNameLookup && !HaveNameProxy()), port);
if (addrResolved.IsValid()) {
addr = addrResolved;
return ConnectSocket(addr, hSocketRet, nTimeout);
}
addr = CService("0.0.0.0:0");
if (!nameproxy.second)
return false;
if (!ConnectSocketDirectly(nameproxy.first, hSocket, nTimeout))
return false;
switch(nameproxy.second) {
default:
case 4:
closesocket(hSocket);
return false;
case 5:
if (!Socks5(strDest, port, hSocket))
return false;
break;
}
hSocketRet = hSocket;
return true;
if (!HaveNameProxy())
return false;
return ConnectThroughProxy(nameProxy, strDest, port, hSocketRet, nTimeout, outProxyConnectionFailed);
}
void CNetAddr::Init()
@@ -548,6 +629,22 @@ void CNetAddr::SetIP(const CNetAddr& ipIn)
memcpy(ip, ipIn.ip, sizeof(ip));
}
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");
}
}
static const unsigned char pchOnionCat[] = {0xFD,0x87,0xD8,0x7E,0xEB,0x43};
bool CNetAddr::SetSpecial(const std::string &strName)
@@ -571,13 +668,12 @@ CNetAddr::CNetAddr()
CNetAddr::CNetAddr(const struct in_addr& ipv4Addr)
{
memcpy(ip, pchIPv4, 12);
memcpy(ip+12, &ipv4Addr, 4);
SetRaw(NET_IPV4, (const uint8_t*)&ipv4Addr);
}
CNetAddr::CNetAddr(const struct in6_addr& ipv6Addr)
{
memcpy(ip, &ipv6Addr, 16);
SetRaw(NET_IPV6, (const uint8_t*)&ipv6Addr);
}
CNetAddr::CNetAddr(const char *pszIp, bool fAllowLookup)
@@ -619,11 +715,28 @@ bool CNetAddr::IsRFC1918() const
(GetByte(3) == 172 && (GetByte(2) >= 16 && GetByte(2) <= 31)));
}
bool CNetAddr::IsRFC2544() const
{
return IsIPv4() && GetByte(3) == 198 && (GetByte(2) == 18 || GetByte(2) == 19);
}
bool CNetAddr::IsRFC3927() const
{
return IsIPv4() && (GetByte(3) == 169 && GetByte(2) == 254);
}
bool CNetAddr::IsRFC6598() const
{
return IsIPv4() && GetByte(3) == 100 && GetByte(2) >= 64 && GetByte(2) <= 127;
}
bool CNetAddr::IsRFC5737() const
{
return IsIPv4() && ((GetByte(3) == 192 && GetByte(2) == 0 && GetByte(1) == 2) ||
(GetByte(3) == 198 && GetByte(2) == 51 && GetByte(1) == 100) ||
(GetByte(3) == 203 && GetByte(2) == 0 && GetByte(1) == 113));
}
bool CNetAddr::IsRFC3849() const
{
return GetByte(15) == 0x20 && GetByte(14) == 0x01 && GetByte(13) == 0x0D && GetByte(12) == 0xB8;
@@ -730,7 +843,7 @@ bool CNetAddr::IsValid() const
bool CNetAddr::IsRoutable() const
{
return IsValid() && !(IsRFC1918() || IsRFC3927() || IsRFC4862() || (IsRFC4193() && !IsTor()) || IsRFC4843() || IsLocal());
return IsValid() && !(IsRFC1918() || IsRFC2544() || IsRFC3927() || IsRFC4862() || IsRFC6598() || IsRFC5737() || (IsRFC4193() && !IsTor()) || IsRFC4843() || IsLocal());
}
enum Network CNetAddr::GetNetwork() const
@@ -880,11 +993,6 @@ uint64_t CNetAddr::GetHash() const
return nRet;
}
void CNetAddr::print() const
{
LogPrintf("CNetAddr(%s)\n", ToString());
}
// private extensions to enum Network, only returned by GetExtNetwork,
// and only used in GetReachabilityFrom
static const int NET_UNKNOWN = NET_MAX + 0;
@@ -1113,16 +1221,115 @@ std::string CService::ToString() const
return ToStringIPPort();
}
void CService::print() const
{
LogPrintf("CService(%s)\n", ToString());
}
void CService::SetPort(unsigned short portIn)
{
port = portIn;
}
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
const int astartofs = network.IsIPv4() ? 12 : 0;
if (ParseInt32(strNetmask, &n)) // If valid number, assume /24 symtex
{
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;
}
}
else // If not a valid number, try full netmask syntax
{
if (LookupHost(strNetmask.c_str(), vIP, 1, false)) // Never allow lookup for netmask
{
// 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.
for(int x=astartofs; x<16; ++x)
netmask[x] = vIP[0].ip[x];
}
else
{
valid = false;
}
}
}
}
else
{
valid = false;
}
// Normalize network according to netmask
for(int x=0; x<16; ++x)
network.ip[x] &= netmask[x];
}
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;
}
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);
}
#ifdef WIN32
std::string NetworkErrorString(int err)
{
@@ -1150,9 +1357,51 @@ std::string NetworkErrorString(int err)
#ifdef STRERROR_R_CHAR_P /* GNU variant can return a pointer outside the passed buffer */
s = strerror_r(err, buf, sizeof(buf));
#else /* POSIX variant always returns message in buffer */
(void) strerror_r(err, buf, sizeof(buf));
if (strerror_r(err, buf, sizeof(buf)))
buf[0] = 0;
#endif
return strprintf("%s (%d)", s, err);
}
#endif
bool CloseSocket(SOCKET& hSocket)
{
if (hSocket == INVALID_SOCKET)
return false;
#ifdef WIN32
int ret = closesocket(hSocket);
#else
int ret = close(hSocket);
#endif
hSocket = INVALID_SOCKET;
return ret != SOCKET_ERROR;
}
bool SetSocketNonBlocking(SOCKET& hSocket, bool fNonBlocking)
{
if (fNonBlocking) {
#ifdef WIN32
u_long nOne = 1;
if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR) {
#else
int fFlags = fcntl(hSocket, F_GETFL, 0);
if (fcntl(hSocket, F_SETFL, fFlags | O_NONBLOCK) == SOCKET_ERROR) {
#endif
CloseSocket(hSocket);
return false;
}
} else {
#ifdef WIN32
u_long nZero = 0;
if (ioctlsocket(hSocket, FIONBIO, &nZero) == SOCKET_ERROR) {
#else
int fFlags = fcntl(hSocket, F_GETFL, 0);
if (fcntl(hSocket, F_SETFL, fFlags & ~O_NONBLOCK) == SOCKET_ERROR) {
#endif
CloseSocket(hSocket);
return false;
}
}
return true;
}