diff options
Diffstat (limited to 'src/netbase.cpp')
-rw-r--r-- | src/netbase.cpp | 179 |
1 files changed, 85 insertions, 94 deletions
diff --git a/src/netbase.cpp b/src/netbase.cpp index 3c50174e75..175406322a 100644 --- a/src/netbase.cpp +++ b/src/netbase.cpp @@ -3,6 +3,14 @@ // Distributed under the MIT/X11 software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#ifdef HAVE_CONFIG_H +#include "bitcoin-config.h" +#endif + +#ifdef HAVE_GETADDRINFO_A +#include <netdb.h> +#endif + #include "netbase.h" #include "hash.h" @@ -11,6 +19,9 @@ #include "util.h" #ifndef WIN32 +#if HAVE_INET_PTON +#include <arpa/inet.h> +#endif #include <fcntl.h> #endif @@ -25,7 +36,7 @@ using namespace std; // Settings static proxyType proxyInfo[NET_MAX]; -static proxyType nameproxyInfo; +static CService nameProxy; static CCriticalSection cs_proxyInfos; int nConnectTimeout = 5000; bool fNameLookup = false; @@ -71,9 +82,30 @@ 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; @@ -82,8 +114,33 @@ 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; @@ -156,50 +213,6 @@ bool LookupNumeric(const char *pszName, CService& addr, int portDefault) return Lookup(pszName, addr, portDefault, false); } -bool static Socks4(const CService &addrDest, SOCKET& hSocket) -{ - 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; -} - bool static Socks5(string strDest, int port, SOCKET& hSocket) { LogPrintf("SOCKS5 connecting %s\n", strDest); @@ -410,53 +423,49 @@ bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRe return true; } -bool SetProxy(enum Network net, CService addrProxy, int nSocksVersion) { +bool SetProxy(enum Network net, CService 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(CService 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(CService &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]) return true; } return false; @@ -465,31 +474,18 @@ bool IsProxy(const CNetAddr &addr) { bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout) { proxyType proxy; - - // no proxy needed + // no proxy needed (none set for target network) 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, hSocket, nTimeout)) return false; - // 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: - closesocket(hSocket); + if (!Socks5(addrDest.ToStringIP(), addrDest.GetPort(), hSocket)) return false; - } hSocketRet = hSocket; return true; @@ -503,30 +499,25 @@ bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest SOCKET hSocket = INVALID_SOCKET; - proxyType nameproxy; - GetNameProxy(nameproxy); + CService nameProxy; + GetNameProxy(nameProxy); - CService addrResolved(CNetAddr(strDest, fNameLookup && !nameproxy.second), port); + 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) + + if (!HaveNameProxy()) return false; - if (!ConnectSocketDirectly(nameproxy.first, hSocket, nTimeout)) + // first connect to name proxy server + if (!ConnectSocketDirectly(nameProxy, hSocket, nTimeout)) + return false; + // do socks negotiation + if (!Socks5(strDest, (unsigned short)port, hSocket)) 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; |