145 lines
3.7 KiB
C++
145 lines
3.7 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 "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 <QStringList>
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#include <pcap.h>
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PortManager *PortManager::instance_ = NULL;
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PortManager::PortManager()
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{
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int i;
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pcap_if_t *deviceList;
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pcap_if_t *device;
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char errbuf[PCAP_ERRBUF_SIZE];
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qDebug("Retrieving the device list from the local machine\n");
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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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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("%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);
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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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portList_.append(port);
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}
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pcap_freealldevs(deviceList);
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foreach(AbstractPort *port, portList_)
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port->init();
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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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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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