diff options
| -rw-r--r-- | src/netbase.cpp | 32 | ||||
| -rw-r--r-- | src/netbase.h | 4 |
2 files changed, 6 insertions, 30 deletions
diff --git a/src/netbase.cpp b/src/netbase.cpp index 1635957b7f..74ea6b19cf 100644 --- a/src/netbase.cpp +++ b/src/netbase.cpp @@ -317,12 +317,11 @@ std::string Socks5ErrorString(uint8_t err) } /** Connect using SOCKS5 (as described in RFC1928) */ -static bool Socks5(const std::string& strDest, int port, const ProxyCredentials *auth, SOCKET& hSocket) +static bool Socks5(const std::string& strDest, int port, const ProxyCredentials *auth, const SOCKET& hSocket) { IntrRecvError recvr; LogPrint(BCLog::NET, "SOCKS5 connecting %s\n", strDest); if (strDest.size() > 255) { - CloseSocket(hSocket); return error("Hostname too long"); } // Accepted authentication methods @@ -338,17 +337,14 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials } ssize_t ret = send(hSocket, (const char*)vSocks5Init.data(), vSocks5Init.size(), MSG_NOSIGNAL); if (ret != (ssize_t)vSocks5Init.size()) { - CloseSocket(hSocket); return error("Error sending to proxy"); } uint8_t pchRet1[2]; if ((recvr = InterruptibleRecv(pchRet1, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { - CloseSocket(hSocket); LogPrintf("Socks5() connect to %s:%d failed: InterruptibleRecv() timeout or other failure\n", strDest, port); return false; } if (pchRet1[0] != SOCKSVersion::SOCKS5) { - CloseSocket(hSocket); return error("Proxy failed to initialize"); } if (pchRet1[1] == SOCKS5Method::USER_PASS && auth) { @@ -363,23 +359,19 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials vAuth.insert(vAuth.end(), auth->password.begin(), auth->password.end()); ret = send(hSocket, (const char*)vAuth.data(), vAuth.size(), MSG_NOSIGNAL); if (ret != (ssize_t)vAuth.size()) { - CloseSocket(hSocket); return error("Error sending authentication to proxy"); } LogPrint(BCLog::PROXY, "SOCKS5 sending proxy authentication %s:%s\n", auth->username, auth->password); uint8_t pchRetA[2]; if ((recvr = InterruptibleRecv(pchRetA, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { - CloseSocket(hSocket); return error("Error reading proxy authentication response"); } if (pchRetA[0] != 0x01 || pchRetA[1] != 0x00) { - CloseSocket(hSocket); return error("Proxy authentication unsuccessful"); } } else if (pchRet1[1] == SOCKS5Method::NOAUTH) { // Perform no authentication } else { - CloseSocket(hSocket); return error("Proxy requested wrong authentication method %02x", pchRet1[1]); } std::vector<uint8_t> vSocks5; @@ -393,12 +385,10 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials vSocks5.push_back((port >> 0) & 0xFF); ret = send(hSocket, (const char*)vSocks5.data(), vSocks5.size(), MSG_NOSIGNAL); if (ret != (ssize_t)vSocks5.size()) { - CloseSocket(hSocket); return error("Error sending to proxy"); } uint8_t pchRet2[4]; if ((recvr = InterruptibleRecv(pchRet2, 4, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { - CloseSocket(hSocket); if (recvr == IntrRecvError::Timeout) { /* If a timeout happens here, this effectively means we timed out while connecting * to the remote node. This is very common for Tor, so do not print an @@ -409,17 +399,14 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials } } if (pchRet2[0] != SOCKSVersion::SOCKS5) { - CloseSocket(hSocket); return error("Proxy failed to accept request"); } if (pchRet2[1] != SOCKS5Reply::SUCCEEDED) { // Failures to connect to a peer that are not proxy errors - CloseSocket(hSocket); LogPrintf("Socks5() connect to %s:%d failed: %s\n", strDest, port, Socks5ErrorString(pchRet2[1])); return false; } if (pchRet2[2] != 0x00) { // Reserved field must be 0 - CloseSocket(hSocket); return error("Error: malformed proxy response"); } uint8_t pchRet3[256]; @@ -431,21 +418,18 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials { recvr = InterruptibleRecv(pchRet3, 1, SOCKS5_RECV_TIMEOUT, hSocket); if (recvr != IntrRecvError::OK) { - CloseSocket(hSocket); return error("Error reading from proxy"); } int nRecv = pchRet3[0]; recvr = InterruptibleRecv(pchRet3, nRecv, SOCKS5_RECV_TIMEOUT, hSocket); break; } - default: CloseSocket(hSocket); return error("Error: malformed proxy response"); + default: return error("Error: malformed proxy response"); } if (recvr != IntrRecvError::OK) { - CloseSocket(hSocket); return error("Error reading from proxy"); } if ((recvr = InterruptibleRecv(pchRet3, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { - CloseSocket(hSocket); return error("Error reading from proxy"); } LogPrint(BCLog::NET, "SOCKS5 connected %s\n", strDest); @@ -488,7 +472,7 @@ SOCKET CreateSocket(const CService &addrConnect) return hSocket; } -bool ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocket, int nTimeout) +bool ConnectSocketDirectly(const CService &addrConnect, const SOCKET& hSocket, int nTimeout) { struct sockaddr_storage sockaddr; socklen_t len = sizeof(sockaddr); @@ -498,7 +482,6 @@ bool ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocket, int nTi } if (!addrConnect.GetSockAddr((struct sockaddr*)&sockaddr, &len)) { LogPrintf("Cannot connect to %s: unsupported network\n", addrConnect.ToString()); - CloseSocket(hSocket); return false; } if (connect(hSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR) @@ -515,13 +498,11 @@ bool ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocket, int nTi if (nRet == 0) { LogPrint(BCLog::NET, "connection to %s timeout\n", addrConnect.ToString()); - CloseSocket(hSocket); return false; } if (nRet == SOCKET_ERROR) { LogPrintf("select() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError())); - CloseSocket(hSocket); return false; } socklen_t nRetSize = sizeof(nRet); @@ -532,13 +513,11 @@ bool ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocket, int nTi #endif { LogPrintf("getsockopt() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError())); - CloseSocket(hSocket); return false; } if (nRet != 0) { LogPrintf("connect() to %s failed after select(): %s\n", addrConnect.ToString(), NetworkErrorString(nRet)); - CloseSocket(hSocket); return false; } } @@ -549,7 +528,6 @@ bool ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocket, int nTi #endif { LogPrintf("connect() to %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError())); - CloseSocket(hSocket); return false; } } @@ -604,7 +582,7 @@ bool IsProxy(const CNetAddr &addr) { return false; } -bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, SOCKET& hSocket, int nTimeout, bool *outProxyConnectionFailed) +bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, const SOCKET& hSocket, int nTimeout, bool *outProxyConnectionFailed) { // first connect to proxy server if (!ConnectSocketDirectly(proxy.proxy, hSocket, nTimeout)) { @@ -618,12 +596,10 @@ bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int static std::atomic_int counter(0); random_auth.username = random_auth.password = strprintf("%i", counter++); if (!Socks5(strDest, (unsigned short)port, &random_auth, hSocket)) { - CloseSocket(hSocket); return false; } } else { if (!Socks5(strDest, (unsigned short)port, 0, hSocket)) { - CloseSocket(hSocket); return false; } } diff --git a/src/netbase.h b/src/netbase.h index 59945ea97d..52e920b3d8 100644 --- a/src/netbase.h +++ b/src/netbase.h @@ -52,8 +52,8 @@ bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault, CService LookupNumeric(const char *pszName, int portDefault = 0); bool LookupSubNet(const char *pszName, CSubNet& subnet); SOCKET CreateSocket(const CService &addrConnect); -bool ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRet, int nTimeout); -bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed); +bool ConnectSocketDirectly(const CService &addrConnect, const SOCKET& hSocketRet, int nTimeout); +bool ConnectThroughProxy(const proxyType &proxy, const std::string& strDest, int port, const SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed); /** Return readable error string for a network error code */ std::string NetworkErrorString(int err); /** Close socket and set hSocket to INVALID_SOCKET */ |