/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtNetwork module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qset.h" #include "qnetworkinterface.h" #include "qnetworkinterface_p.h" #include "qalgorithms.h" #include "private/qnet_unix_p.h" #ifndef QT_NO_NETWORKINTERFACE #define IP_MULTICAST // make AIX happy and define IFF_MULTICAST #include #include #ifdef Q_OS_SOLARIS # include #endif #include #ifndef QT_NO_GETIFADDRS # include #endif #ifdef QT_LINUXBASE # include # ifndef SIOCGIFBRDADDR # define SIOCGIFBRDADDR 0x8919 # endif #endif // QT_LINUXBASE #include QT_BEGIN_NAMESPACE static QHostAddress addressFromSockaddr(sockaddr *sa) { QHostAddress address; if (!sa) return address; if (sa->sa_family == AF_INET) address.setAddress(htonl(((sockaddr_in *)sa)->sin_addr.s_addr)); #ifndef QT_NO_IPV6 else if (sa->sa_family == AF_INET6) address.setAddress(((sockaddr_in6 *)sa)->sin6_addr.s6_addr); #endif return address; } static QNetworkInterface::InterfaceFlags convertFlags(uint rawFlags) { QNetworkInterface::InterfaceFlags flags = 0; flags |= (rawFlags & IFF_UP) ? QNetworkInterface::IsUp : QNetworkInterface::InterfaceFlag(0); flags |= (rawFlags & IFF_RUNNING) ? QNetworkInterface::IsRunning : QNetworkInterface::InterfaceFlag(0); flags |= (rawFlags & IFF_BROADCAST) ? QNetworkInterface::CanBroadcast : QNetworkInterface::InterfaceFlag(0); flags |= (rawFlags & IFF_LOOPBACK) ? QNetworkInterface::IsLoopBack : QNetworkInterface::InterfaceFlag(0); #ifdef IFF_POINTOPOINT //cygwin doesn't define IFF_POINTOPOINT flags |= (rawFlags & IFF_POINTOPOINT) ? QNetworkInterface::IsPointToPoint : QNetworkInterface::InterfaceFlag(0); #endif #ifdef IFF_MULTICAST flags |= (rawFlags & IFF_MULTICAST) ? QNetworkInterface::CanMulticast : QNetworkInterface::InterfaceFlag(0); #endif return flags; } #ifdef QT_NO_GETIFADDRS // getifaddrs not available static const int STORAGEBUFFER_GROWTH = 256; static QSet interfaceNames(int socket) { QSet result; #ifdef QT_NO_IPV6IFNAME QByteArray storageBuffer; struct ifconf interfaceList; forever { // grow the storage buffer storageBuffer.resize(storageBuffer.size() + STORAGEBUFFER_GROWTH); interfaceList.ifc_buf = storageBuffer.data(); interfaceList.ifc_len = storageBuffer.size(); // get the interface list if (qt_safe_ioctl(socket, SIOCGIFCONF, &interfaceList) >= 0) { if (int(interfaceList.ifc_len + sizeof(ifreq) + 64) < storageBuffer.size()) { // if the buffer was big enough, break storageBuffer.resize(interfaceList.ifc_len); break; } } else { // internal error return result; } if (storageBuffer.size() > 100000) { // out of space return result; } } int interfaceCount = interfaceList.ifc_len / sizeof(ifreq); for (int i = 0; i < interfaceCount; ++i) { QByteArray name = QByteArray(interfaceList.ifc_req[i].ifr_name); if (!name.isEmpty()) result << name; } return result; #else Q_UNUSED(socket); // use if_nameindex struct if_nameindex *interfaceList = ::if_nameindex(); for (struct if_nameindex *ptr = interfaceList; ptr && ptr->if_name; ++ptr) result << ptr->if_name; if_freenameindex(interfaceList); return result; #endif } static QNetworkInterfacePrivate *findInterface(int socket, QList &interfaces, struct ifreq &req) { QNetworkInterfacePrivate *iface = 0; int ifindex = 0; #ifndef QT_NO_IPV6IFNAME // Get the interface index ifindex = if_nametoindex(req.ifr_name); // find the interface data QList::Iterator if_it = interfaces.begin(); for ( ; if_it != interfaces.end(); ++if_it) if ((*if_it)->index == ifindex) { // existing interface iface = *if_it; break; } #else // Search by name QList::Iterator if_it = interfaces.begin(); for ( ; if_it != interfaces.end(); ++if_it) if ((*if_it)->name == QLatin1String(req.ifr_name)) { // existing interface iface = *if_it; break; } #endif if (!iface) { // new interface, create data: iface = new QNetworkInterfacePrivate; iface->index = ifindex; interfaces << iface; #ifdef SIOCGIFNAME // Get the canonical name QByteArray oldName = req.ifr_name; if (qt_safe_ioctl(socket, SIOCGIFNAME, &req) >= 0) { iface->name = QString::fromLatin1(req.ifr_name); // reset the name: memcpy(req.ifr_name, oldName, qMin(oldName.length() + 1, sizeof(req.ifr_name) - 1)); } else #endif { // use this name anyways iface->name = QString::fromLatin1(req.ifr_name); } // Get interface flags if (qt_safe_ioctl(socket, SIOCGIFFLAGS, &req) >= 0) { iface->flags = convertFlags(req.ifr_flags); } #ifdef SIOCGIFHWADDR // Get the HW address if (qt_safe_ioctl(socket, SIOCGIFHWADDR, &req) >= 0) { uchar *addr = (uchar *)&req.ifr_addr; iface->hardwareAddress = iface->makeHwAddress(6, addr); } #endif } return iface; } static QList interfaceListing() { QList interfaces; int socket; if ((socket = qt_safe_socket(AF_INET, SOCK_STREAM, IPPROTO_IP)) == -1) return interfaces; // error QSet names = interfaceNames(socket); QSet::ConstIterator it = names.constBegin(); for ( ; it != names.constEnd(); ++it) { ifreq req; memset(&req, 0, sizeof(ifreq)); memcpy(req.ifr_name, *it, qMin(it->length() + 1, sizeof(req.ifr_name) - 1)); QNetworkInterfacePrivate *iface = findInterface(socket, interfaces, req); // Get the interface broadcast address QNetworkAddressEntry entry; if (iface->flags & QNetworkInterface::CanBroadcast) { if (qt_safe_ioctl(socket, SIOCGIFBRDADDR, &req) >= 0) { sockaddr *sa = &req.ifr_addr; if (sa->sa_family == AF_INET) entry.setBroadcast(addressFromSockaddr(sa)); } } // Get the interface netmask if (qt_safe_ioctl(socket, SIOCGIFNETMASK, &req) >= 0) { sockaddr *sa = &req.ifr_addr; entry.setNetmask(addressFromSockaddr(sa)); } // Get the address of the interface if (qt_safe_ioctl(socket, SIOCGIFADDR, &req) >= 0) { sockaddr *sa = &req.ifr_addr; entry.setIp(addressFromSockaddr(sa)); } iface->addressEntries << entry; } ::close(socket); return interfaces; } #else // use getifaddrs // platform-specific defs: # ifdef Q_OS_LINUX QT_BEGIN_INCLUDE_NAMESPACE # include QT_END_INCLUDE_NAMESPACE # endif # if defined(Q_OS_LINUX) && __GLIBC__ - 0 >= 2 && __GLIBC_MINOR__ - 0 >= 1 # include static QList createInterfaces(ifaddrs *rawList) { QList interfaces; for (ifaddrs *ptr = rawList; ptr; ptr = ptr->ifa_next) { if ( !ptr->ifa_addr ) continue; // Get the interface index int ifindex = if_nametoindex(ptr->ifa_name); // on Linux we use AF_PACKET and sockaddr_ll to obtain hHwAddress QList::Iterator if_it = interfaces.begin(); for ( ; if_it != interfaces.end(); ++if_it) if ((*if_it)->index == ifindex) { // this one has been added already if ( ptr->ifa_addr->sa_family == AF_PACKET && (*if_it)->hardwareAddress.isEmpty()) { sockaddr_ll *sll = (sockaddr_ll *)ptr->ifa_addr; (*if_it)->hardwareAddress = (*if_it)->makeHwAddress(sll->sll_halen, (uchar*)sll->sll_addr); } break; } if ( if_it != interfaces.end() ) continue; QNetworkInterfacePrivate *iface = new QNetworkInterfacePrivate; interfaces << iface; iface->index = ifindex; iface->name = QString::fromLatin1(ptr->ifa_name); iface->flags = convertFlags(ptr->ifa_flags); if ( ptr->ifa_addr->sa_family == AF_PACKET ) { sockaddr_ll *sll = (sockaddr_ll *)ptr->ifa_addr; iface->hardwareAddress = iface->makeHwAddress(sll->sll_halen, (uchar*)sll->sll_addr); } } return interfaces; } # elif defined(Q_OS_BSD4) QT_BEGIN_INCLUDE_NAMESPACE # include QT_END_INCLUDE_NAMESPACE static QList createInterfaces(ifaddrs *rawList) { QList interfaces; // on NetBSD we use AF_LINK and sockaddr_dl // scan the list for that family for (ifaddrs *ptr = rawList; ptr; ptr = ptr->ifa_next) if (ptr->ifa_addr && ptr->ifa_addr->sa_family == AF_LINK) { QNetworkInterfacePrivate *iface = new QNetworkInterfacePrivate; interfaces << iface; sockaddr_dl *sdl = (sockaddr_dl *)ptr->ifa_addr; iface->index = sdl->sdl_index; iface->name = QString::fromLatin1(ptr->ifa_name); iface->flags = convertFlags(ptr->ifa_flags); iface->hardwareAddress = iface->makeHwAddress(sdl->sdl_alen, (uchar*)LLADDR(sdl)); } return interfaces; } # else // Generic version static QList createInterfaces(ifaddrs *rawList) { QList interfaces; // make sure there's one entry for each interface for (ifaddrs *ptr = rawList; ptr; ptr = ptr->ifa_next) { // Get the interface index int ifindex = if_nametoindex(ptr->ifa_name); QList::Iterator if_it = interfaces.begin(); for ( ; if_it != interfaces.end(); ++if_it) if ((*if_it)->index == ifindex) // this one has been added already break; if (if_it == interfaces.end()) { // none found, create QNetworkInterfacePrivate *iface = new QNetworkInterfacePrivate; interfaces << iface; iface->index = ifindex; iface->name = QString::fromLatin1(ptr->ifa_name); iface->flags = convertFlags(ptr->ifa_flags); } } return interfaces; } # endif static QList interfaceListing() { QList interfaces; int socket; if ((socket = qt_safe_socket(AF_INET, SOCK_STREAM, IPPROTO_IP)) == -1) return interfaces; // error ifaddrs *interfaceListing; if (getifaddrs(&interfaceListing) == -1) { // error ::close(socket); return interfaces; } interfaces = createInterfaces(interfaceListing); for (ifaddrs *ptr = interfaceListing; ptr; ptr = ptr->ifa_next) { // Get the interface index int ifindex = if_nametoindex(ptr->ifa_name); QNetworkInterfacePrivate *iface = 0; QList::Iterator if_it = interfaces.begin(); for ( ; if_it != interfaces.end(); ++if_it) if ((*if_it)->index == ifindex) { // found this interface already iface = *if_it; break; } if (!iface) { // skip all non-IP interfaces continue; } QNetworkAddressEntry entry; entry.setIp(addressFromSockaddr(ptr->ifa_addr)); if (entry.ip().isNull()) // could not parse the address continue; entry.setNetmask(addressFromSockaddr(ptr->ifa_netmask)); if (iface->flags & QNetworkInterface::CanBroadcast) entry.setBroadcast(addressFromSockaddr(ptr->ifa_broadaddr)); iface->addressEntries << entry; } freeifaddrs(interfaceListing); ::close(socket); return interfaces; } #endif QList QNetworkInterfaceManager::scan() { return interfaceListing(); } QT_END_NAMESPACE #endif // QT_NO_NETWORKINTERFACE