275 lines
8.1 KiB
C++
275 lines
8.1 KiB
C++
/*
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Copyright (C) 2010-2012 Srivats P.
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This file is part of "Ostinato"
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This is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#include "portmanager.h"
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#include "bsdport.h"
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#include "interfaceinfo.h"
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#include "linuxport.h"
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#include "pcapport.h"
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#include "settings.h"
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#include "winpcapport.h"
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#include <QHostAddress>
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#include <QStringList>
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PortManager *PortManager::instance_ = NULL;
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#if defined(Q_OS_WIN32)
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#include <QUuid>
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#include <ipHlpApi.h>
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// Define the function prototypes since they are not defined in ipHlpApi.h
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NETIO_STATUS WINAPI ConvertInterfaceGuidToLuid(
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const GUID *InterfaceGuid, PNET_LUID InterfaceLuid);
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NETIO_STATUS WINAPI ConvertInterfaceLuidToAlias(
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const NET_LUID *InterfaceLuid, PWSTR InterfaceAlias, SIZE_T Length);
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#define MyGetProcAddress(hDll, function) \
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hDll ? reinterpret_cast<decltype(&function)> (GetProcAddress(hDll, #function)) : NULL;
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#endif
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PortManager::PortManager()
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{
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int i;
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pcap_if_t *device;
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AbstractPort::Accuracy txRateAccuracy;
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qDebug("PCAP Lib: %s", pcap_lib_version());
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#ifdef Q_OS_WIN32
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qDebug("Service npf status %s\n", pcapServiceStatus(L"npf"));
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qDebug("Service npcap status %s\n", pcapServiceStatus(L"npcap"));
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#endif
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qDebug("Retrieving the device list from the local machine\n");
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#if defined(Q_OS_WIN32)
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WinPcapPort::fetchHostNetworkInfo();
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#elif defined(Q_OS_LINUX)
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LinuxPort::fetchHostNetworkInfo();
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#elif defined(Q_OS_BSD4)
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BsdPort::fetchHostNetworkInfo();
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#endif
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txRateAccuracy = rateAccuracy();
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pcap_if_t *deviceList = GetPortList();
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for(device = deviceList, i = 0; device != NULL; device = device->next, i++)
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{
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AbstractPort *port;
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qDebug("==========\n%d. %s", i, device->name);
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if (device->description)
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qDebug(" (%s)\n", device->description);
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#if defined(Q_OS_WIN32)
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if (!filterAcceptsPort(device->description))
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#else
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if (!filterAcceptsPort(device->name))
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#endif
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{
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qDebug("%s (%s) rejected by filter. Skipping!",
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device->name, device->description);
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i--;
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continue;
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}
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#if defined(Q_OS_WIN32)
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port = new WinPcapPort(i, device->name, device->description);
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#elif defined(Q_OS_LINUX)
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port = new LinuxPort(i, device->name);
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#elif defined(Q_OS_BSD4)
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port = new BsdPort(i, device->name);
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#else
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port = new PcapPort(i, device->name);
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#endif
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if (!port->isUsable())
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{
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qDebug("%s: unable to open %s. Skipping!", __FUNCTION__,
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device->name);
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delete port;
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i--;
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continue;
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}
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const InterfaceInfo *intfInfo = port->interfaceInfo();
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if (intfInfo) {
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qDebug("Mac: %012llx", intfInfo->mac);
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foreach(Ip4Config ip, intfInfo->ip4)
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qDebug("Ip4: %s/%d gw: %s",
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qPrintable(QHostAddress(ip.address).toString()),
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ip.prefixLength,
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qPrintable(QHostAddress(ip.gateway).toString()));
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foreach(Ip6Config ip, intfInfo->ip6)
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qDebug("Ip6: %s/%d gw: %s",
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qPrintable(QHostAddress(ip.address.toArray()).toString()),
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ip.prefixLength,
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qPrintable(QHostAddress(ip.gateway.toArray()).toString()));
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qDebug("Speed: %g Mbps", intfInfo->speed);
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qDebug("Mtu: %u", intfInfo->mtu);
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}
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if (!port->setRateAccuracy(txRateAccuracy))
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qWarning("failed to set rateAccuracy (%d)", txRateAccuracy);
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portList_.append(port);
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}
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FreePortList(deviceList);
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foreach(AbstractPort *port, portList_)
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port->init();
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#if defined(Q_OS_WIN32)
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WinPcapPort::freeHostNetworkInfo();
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#elif defined(Q_OS_LINUX)
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LinuxPort::freeHostNetworkInfo();
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#elif defined(Q_OS_BSD4)
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BsdPort::freeHostNetworkInfo();
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#endif
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return;
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}
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PortManager::~PortManager()
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{
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while (!portList_.isEmpty())
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delete portList_.takeFirst();
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}
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PortManager* PortManager::instance()
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{
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if (!instance_)
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instance_ = new PortManager;
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return instance_;
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}
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pcap_if_t* PortManager::GetPortList()
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{
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pcap_if_t *deviceList = NULL;
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char errbuf[PCAP_ERRBUF_SIZE];
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if (pcap_findalldevs(&deviceList, errbuf) == -1)
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qDebug("Error in pcap_findalldevs_ex: %s\n", errbuf);
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#if defined(Q_OS_WIN32)
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// Use windows' connection name as the description for a better UX
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ipHlpApi_ = LoadLibrary(TEXT("ipHlpApi.dll"));
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auto guid2Luid = MyGetProcAddress(ipHlpApi_, ConvertInterfaceGuidToLuid);
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auto luid2Alias = MyGetProcAddress(ipHlpApi_, ConvertInterfaceLuidToAlias);
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if (guid2Luid && luid2Alias) {
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pcap_if_t *device;
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for(device = deviceList; device != NULL; device = device->next) {
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GUID guid = static_cast<GUID>(QUuid(
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QString(device->name).remove("\\Device\\NPF_")));
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NET_LUID luid;
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oldDescriptions_.append(device->description);
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newDescriptions_.append(new QByteArray());
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if (guid2Luid(&guid, &luid) == NO_ERROR) {
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WCHAR conn[256];
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if (luid2Alias(&luid, conn, 256) == NO_ERROR) {
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*(newDescriptions_.last()) = QString().fromWCharArray(conn)
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.toLocal8Bit();
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device->description = newDescriptions_.last()->data();
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}
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}
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}
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}
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#endif
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return deviceList;
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}
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void PortManager::FreePortList(pcap_if_t *deviceList)
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{
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#if defined(Q_OS_WIN32)
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int i = 0;
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pcap_if_t *device;
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if (oldDescriptions_.size()) {
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for(device = deviceList; device != NULL; device = device->next)
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device->description = oldDescriptions_.at(i++);
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}
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oldDescriptions_.clear();
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while (newDescriptions_.size())
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delete newDescriptions_.takeFirst();
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if (ipHlpApi_)
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FreeLibrary(ipHlpApi_);
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#endif
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pcap_freealldevs(deviceList);
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}
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AbstractPort::Accuracy PortManager::rateAccuracy()
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{
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QString rateAccuracy = appSettings->value(kRateAccuracyKey,
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kRateAccuracyDefaultValue).toString();
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if (rateAccuracy == "High")
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return AbstractPort::kHighAccuracy;
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else if (rateAccuracy == "Low")
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return AbstractPort::kLowAccuracy;
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else
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qWarning("Unsupported RateAccuracy setting - %s",
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qPrintable(rateAccuracy));
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return AbstractPort::kHighAccuracy;
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}
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bool PortManager::filterAcceptsPort(const char *name)
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{
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QRegExp pattern;
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QStringList includeList = appSettings->value(kPortListIncludeKey)
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.toStringList();
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QStringList excludeList = appSettings->value(kPortListExcludeKey)
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.toStringList();
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pattern.setPatternSyntax(QRegExp::Wildcard);
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// An empty (or missing) includeList accepts all ports
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// NOTE: A blank "IncludeList=" is read as a stringlist with one
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// string which is empty => treat it same as an empty stringlist
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if (includeList.isEmpty()
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|| (includeList.size() == 1 && includeList.at(0).isEmpty()))
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goto _include_pass;
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foreach (QString str, includeList) {
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pattern.setPattern(str);
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if (pattern.exactMatch(name))
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goto _include_pass;
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}
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// IncludeList is not empty and port did not match a pattern
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return false;
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_include_pass:
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foreach (QString str, excludeList) {
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pattern.setPattern(str);
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if (pattern.exactMatch(name))
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return false;
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}
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// Port did not match a pattern in ExcludeList
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return true;
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}
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