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@ -9,6 +9,7 @@
@@ -9,6 +9,7 @@
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#include <stdlib.h> |
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#include <string.h> |
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#include <stdio.h> |
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#include <sysinfoapi.h> |
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#include <winsock2.h> |
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#include <ws2tcpip.h> |
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#include <iphlpapi.h> |
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@ -21,9 +22,10 @@
@@ -21,9 +22,10 @@
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#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x)) |
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#define FREE(x) HeapFree(GetProcessHeap(), 0, (x)) |
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/* // No more needed. Exists in MinGW.
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int inet_pton(int af, const char *src, void *dst) |
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{ // This function was written by Petar Korponai?. See http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found
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// inet_pton exists Windows since Vista, but XP haven't that function!
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// This function was written by Petar Korponai?. See http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found
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int inet_pton_xp(int af, const char *src, void *dst) |
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{ |
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struct sockaddr_storage ss; |
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int size = sizeof (ss); |
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char src_copy[INET6_ADDRSTRLEN + 1]; |
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@ -45,7 +47,7 @@ int inet_pton(int af, const char *src, void *dst)
@@ -45,7 +47,7 @@ int inet_pton(int af, const char *src, void *dst)
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} |
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} |
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return 0; |
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}*/ |
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} |
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#else /* !WIN32 => UNIX */ |
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#include <sys/types.h> |
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#include <ifaddrs.h> |
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@ -58,204 +60,236 @@ namespace util
@@ -58,204 +60,236 @@ namespace util
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namespace net |
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{ |
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#ifdef WIN32 |
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int GetMTUWindowsIpv4(sockaddr_in inputAddress, int fallback) |
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{ |
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ULONG outBufLen = 0; |
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PIP_ADAPTER_ADDRESSES pAddresses = nullptr; |
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PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; |
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; |
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if(GetAdaptersAddresses(AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) |
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== ERROR_BUFFER_OVERFLOW) { |
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FREE(pAddresses); |
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pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen); |
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} |
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DWORD dwRetVal = GetAdaptersAddresses( |
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AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen |
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); |
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if(dwRetVal != NO_ERROR) { |
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LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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pCurrAddresses = pAddresses; |
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while(pCurrAddresses) { |
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress; |
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pUnicast = pCurrAddresses->FirstUnicastAddress; |
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if(pUnicast == nullptr) { |
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LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv4 address, this is not supported"); |
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} |
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for(int i = 0; pUnicast != nullptr; ++i) { |
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; |
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sockaddr_in* localInterfaceAddress = (sockaddr_in*) lpAddr; |
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if(localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr) { |
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auto result = pAddresses->Mtu; |
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FREE(pAddresses); |
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return result; |
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} |
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pUnicast = pUnicast->Next; |
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} |
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pCurrAddresses = pCurrAddresses->Next; |
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} |
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LogPrint(eLogError, "NetIface: GetMTU(): no usable unicast ipv4 addresses found"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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int GetMTUWindowsIpv6(sockaddr_in6 inputAddress, int fallback) |
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{ |
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ULONG outBufLen = 0; |
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PIP_ADAPTER_ADDRESSES pAddresses = nullptr; |
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PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; |
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; |
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if(GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) |
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== ERROR_BUFFER_OVERFLOW) { |
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FREE(pAddresses); |
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pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen); |
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} |
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DWORD dwRetVal = GetAdaptersAddresses( |
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AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen |
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); |
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if(dwRetVal != NO_ERROR) { |
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LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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bool found_address = false; |
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pCurrAddresses = pAddresses; |
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while(pCurrAddresses) { |
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress; |
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pUnicast = pCurrAddresses->FirstUnicastAddress; |
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if(pUnicast == nullptr) { |
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LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv6 address, this is not supported"); |
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} |
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for(int i = 0; pUnicast != nullptr; ++i) { |
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; |
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sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr; |
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for (int j = 0; j != 8; ++j) { |
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if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j]) { |
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break; |
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} else { |
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found_address = true; |
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} |
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} if (found_address) { |
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auto result = pAddresses->Mtu; |
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FREE(pAddresses); |
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pAddresses = nullptr; |
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return result; |
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} |
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pUnicast = pUnicast->Next; |
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} |
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pCurrAddresses = pCurrAddresses->Next; |
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} |
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LogPrint(eLogError, "NetIface: GetMTU(): no usable unicast ipv6 addresses found"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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int GetMTUWindows(const boost::asio::ip::address& localAddress, int fallback) |
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{ |
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bool IsWindowsXPorLater() |
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{ |
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OSVERSIONINFO osvi; |
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ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); |
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); |
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GetVersionEx(&osvi); |
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if (osvi.dwMajorVersion <= 5) |
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return true; |
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else |
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return false; |
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} |
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int GetMTUWindowsIpv4(sockaddr_in inputAddress, int fallback) |
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{ |
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ULONG outBufLen = 0; |
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PIP_ADAPTER_ADDRESSES pAddresses = nullptr; |
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PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; |
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; |
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if(GetAdaptersAddresses(AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) |
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== ERROR_BUFFER_OVERFLOW) |
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{ |
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FREE(pAddresses); |
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pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen); |
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} |
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DWORD dwRetVal = GetAdaptersAddresses( |
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AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen |
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); |
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if(dwRetVal != NO_ERROR) |
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{ |
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LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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pCurrAddresses = pAddresses; |
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while(pCurrAddresses) |
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{ |
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress; |
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pUnicast = pCurrAddresses->FirstUnicastAddress; |
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if(pUnicast == nullptr) |
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LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv4 address, this is not supported"); |
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for(int i = 0; pUnicast != nullptr; ++i) |
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{ |
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; |
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sockaddr_in* localInterfaceAddress = (sockaddr_in*) lpAddr; |
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if(localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr) |
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{ |
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auto result = pAddresses->Mtu; |
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FREE(pAddresses); |
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return result; |
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} |
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pUnicast = pUnicast->Next; |
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} |
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pCurrAddresses = pCurrAddresses->Next; |
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} |
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LogPrint(eLogError, "NetIface: GetMTU(): no usable unicast ipv4 addresses found"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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int GetMTUWindowsIpv6(sockaddr_in6 inputAddress, int fallback) |
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{ |
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ULONG outBufLen = 0; |
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PIP_ADAPTER_ADDRESSES pAddresses = nullptr; |
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PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; |
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; |
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if(GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) |
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== ERROR_BUFFER_OVERFLOW) |
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{ |
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FREE(pAddresses); |
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pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen); |
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} |
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DWORD dwRetVal = GetAdaptersAddresses( |
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AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen |
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); |
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if(dwRetVal != NO_ERROR) |
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{ |
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LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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bool found_address = false; |
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pCurrAddresses = pAddresses; |
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while(pCurrAddresses) |
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{ |
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress; |
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pUnicast = pCurrAddresses->FirstUnicastAddress; |
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if(pUnicast == nullptr) |
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LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv6 address, this is not supported"); |
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for(int i = 0; pUnicast != nullptr; ++i) |
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{ |
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; |
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sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr; |
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for (int j = 0; j != 8; ++j) |
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{ |
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if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j]) |
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break; |
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else |
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found_address = true; |
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} |
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if (found_address) |
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{ |
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auto result = pAddresses->Mtu; |
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FREE(pAddresses); |
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pAddresses = nullptr; |
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return result; |
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} |
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pUnicast = pUnicast->Next; |
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} |
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pCurrAddresses = pCurrAddresses->Next; |
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} |
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LogPrint(eLogError, "NetIface: GetMTU(): no usable unicast ipv6 addresses found"); |
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FREE(pAddresses); |
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return fallback; |
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} |
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int GetMTUWindows(const boost::asio::ip::address& localAddress, int fallback) |
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{ |
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#ifdef UNICODE |
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string localAddress_temporary = localAddress.to_string(); |
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wstring localAddressUniversal(localAddress_temporary.begin(), localAddress_temporary.end()); |
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string localAddress_temporary = localAddress.to_string(); |
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wstring localAddressUniversal(localAddress_temporary.begin(), localAddress_temporary.end()); |
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#else |
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std::string localAddressUniversal = localAddress.to_string(); |
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std::string localAddressUniversal = localAddress.to_string(); |
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#endif |
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if(localAddress.is_v4()) { |
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sockaddr_in inputAddress; |
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inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr)); |
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return GetMTUWindowsIpv4(inputAddress, fallback); |
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} else if(localAddress.is_v6()) { |
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sockaddr_in6 inputAddress; |
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inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr)); |
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return GetMTUWindowsIpv6(inputAddress, fallback); |
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} else { |
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LogPrint(eLogError, "NetIface: GetMTU(): address family is not supported"); |
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return fallback; |
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} |
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} |
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if (IsWindowsXPorLater()) |
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{ |
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#define inet_pton inet_pton_xp |
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} |
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if(localAddress.is_v4()) |
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{ |
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sockaddr_in inputAddress; |
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inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr)); |
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return GetMTUWindowsIpv4(inputAddress, fallback); |
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} |
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else if(localAddress.is_v6()) |
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{ |
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sockaddr_in6 inputAddress; |
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inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr)); |
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return GetMTUWindowsIpv6(inputAddress, fallback); |
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} else { |
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LogPrint(eLogError, "NetIface: GetMTU(): address family is not supported"); |
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return fallback; |
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} |
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} |
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#else // assume unix
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int GetMTUUnix(const boost::asio::ip::address& localAddress, int fallback) |
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{ |
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ifaddrs* ifaddr, *ifa = nullptr; |
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if(getifaddrs(&ifaddr) == -1) |
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{ |
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|
ifaddrs* ifaddr, *ifa = nullptr; |
|
|
|
|
if(getifaddrs(&ifaddr) == -1) |
|
|
|
|
{ |
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|
|
|
LogPrint(eLogError, "NetIface: Can't call getifaddrs(): ", strerror(errno)); |
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|
return fallback; |
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|
|
|
} |
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|
|
|
LogPrint(eLogError, "NetIface: Can't call getifaddrs(): ", strerror(errno)); |
|
|
|
|
return fallback; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
int family = 0; |
|
|
|
|
// look for interface matching local address
|
|
|
|
|
for(ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) |
|
|
|
|
int family = 0; |
|
|
|
|
// look for interface matching local address
|
|
|
|
|
for(ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) |
|
|
|
|
{ |
|
|
|
|
if(!ifa->ifa_addr) |
|
|
|
|
continue; |
|
|
|
|
if(!ifa->ifa_addr) |
|
|
|
|
continue; |
|
|
|
|
|
|
|
|
|
family = ifa->ifa_addr->sa_family; |
|
|
|
|
if(family == AF_INET && localAddress.is_v4()) |
|
|
|
|
family = ifa->ifa_addr->sa_family; |
|
|
|
|
if(family == AF_INET && localAddress.is_v4()) |
|
|
|
|
{ |
|
|
|
|
sockaddr_in* sa = (sockaddr_in*) ifa->ifa_addr; |
|
|
|
|
if(!memcmp(&sa->sin_addr, localAddress.to_v4().to_bytes().data(), 4)) |
|
|
|
|
break; // address matches
|
|
|
|
|
} |
|
|
|
|
sockaddr_in* sa = (sockaddr_in*) ifa->ifa_addr; |
|
|
|
|
if(!memcmp(&sa->sin_addr, localAddress.to_v4().to_bytes().data(), 4)) |
|
|
|
|
break; // address matches
|
|
|
|
|
} |
|
|
|
|
else if(family == AF_INET6 && localAddress.is_v6()) |
|
|
|
|
{ |
|
|
|
|
sockaddr_in6* sa = (sockaddr_in6*) ifa->ifa_addr; |
|
|
|
|
if(!memcmp(&sa->sin6_addr, localAddress.to_v6().to_bytes().data(), 16)) |
|
|
|
|
break; // address matches
|
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
int mtu = fallback; |
|
|
|
|
if(ifa && family) |
|
|
|
|
sockaddr_in6* sa = (sockaddr_in6*) ifa->ifa_addr; |
|
|
|
|
if(!memcmp(&sa->sin6_addr, localAddress.to_v6().to_bytes().data(), 16)) |
|
|
|
|
break; // address matches
|
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
int mtu = fallback; |
|
|
|
|
if(ifa && family) |
|
|
|
|
{ // interface found?
|
|
|
|
|
int fd = socket(family, SOCK_DGRAM, 0); |
|
|
|
|
if(fd > 0) |
|
|
|
|
int fd = socket(family, SOCK_DGRAM, 0); |
|
|
|
|
if(fd > 0) |
|
|
|
|
{ |
|
|
|
|
ifreq ifr; |
|
|
|
|
strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ); // set interface for query
|
|
|
|
|
if(ioctl(fd, SIOCGIFMTU, &ifr) >= 0) |
|
|
|
|
mtu = ifr.ifr_mtu; // MTU
|
|
|
|
|
else |
|
|
|
|
LogPrint (eLogError, "NetIface: Failed to run ioctl: ", strerror(errno)); |
|
|
|
|
close(fd); |
|
|
|
|
} |
|
|
|
|
ifreq ifr; |
|
|
|
|
strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ); // set interface for query
|
|
|
|
|
if(ioctl(fd, SIOCGIFMTU, &ifr) >= 0) |
|
|
|
|
mtu = ifr.ifr_mtu; // MTU
|
|
|
|
|
else |
|
|
|
|
LogPrint (eLogError, "NetIface: Failed to run ioctl: ", strerror(errno)); |
|
|
|
|
close(fd); |
|
|
|
|
} |
|
|
|
|
else |
|
|
|
|
LogPrint(eLogError, "NetIface: Failed to create datagram socket"); |
|
|
|
|
} |
|
|
|
|
LogPrint(eLogError, "NetIface: Failed to create datagram socket"); |
|
|
|
|
} |
|
|
|
|
else |
|
|
|
|
LogPrint(eLogWarning, "NetIface: interface for local address", localAddress.to_string(), " not found"); |
|
|
|
|
freeifaddrs(ifaddr); |
|
|
|
|
LogPrint(eLogWarning, "NetIface: interface for local address", localAddress.to_string(), " not found"); |
|
|
|
|
freeifaddrs(ifaddr); |
|
|
|
|
|
|
|
|
|
return mtu; |
|
|
|
|
} |
|
|
|
|
return mtu; |
|
|
|
|
} |
|
|
|
|
#endif // WIN32
|
|
|
|
|
|
|
|
|
|
int GetMTU(const boost::asio::ip::address& localAddress) |
|
|
|
|
{ |
|
|
|
|
const int fallback = 576; // fallback MTU
|
|
|
|
|
int GetMTU(const boost::asio::ip::address& localAddress) |
|
|
|
|
{ |
|
|
|
|
const int fallback = 576; // fallback MTU
|
|
|
|
|
|
|
|
|
|
#ifdef WIN32 |
|
|
|
|
return GetMTUWindows(localAddress, fallback); |
|
|
|
|
return GetMTUWindows(localAddress, fallback); |
|
|
|
|
#else |
|
|
|
|
return GetMTUUnix(localAddress, fallback); |
|
|
|
|
return GetMTUUnix(localAddress, fallback); |
|
|
|
|
#endif |
|
|
|
|
return fallback; |
|
|
|
|
} |
|
|
|
|
return fallback; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const boost::asio::ip::address GetInterfaceAddress(const std::string & ifname, bool ipv6) |
|
|
|
|
{ |
|
|
|
|
@ -291,7 +325,8 @@ namespace net
@@ -291,7 +325,8 @@ namespace net
|
|
|
|
|
} |
|
|
|
|
if(addrs) freeifaddrs(addrs); |
|
|
|
|
std::string fallback; |
|
|
|
|
if(ipv6) { |
|
|
|
|
if(ipv6) |
|
|
|
|
{ |
|
|
|
|
fallback = "::"; |
|
|
|
|
LogPrint(eLogWarning, "NetIface: cannot find ipv6 address for interface ", ifname); |
|
|
|
|
} else { |
|
|
|
|
|
orignal
6 years ago
committed by