wpagui.cpp

IEEE802.11 a/b/g 客户端应用程序源代码

void WpaGui::helpContents()
{
	printf("helpContents\n");
}


void WpaGui::helpAbout()
{
	QMessageBox::about(this, "wpa_gui for wpa_supplicant",
			   "Copyright (c) 2003-2008,\n"
			   "Jouni Malinen <[e-mail]>\n"
			   "and contributors.\n"
			   "\n"
			   "This program is free software. You can\n"
			   "distribute it and/or modify it under the terms "
			   "of\n"
			   "the GNU General Public License version 2.\n"
			   "\n"
			   "Alternatively, this software may be distributed\n"
			   "under the terms of the BSD license.\n"
			   "\n"
			   "This product includes software developed\n"
			   "by the OpenSSL Project for use in the\n"
			   "OpenSSL Toolkit (http://www.openssl.org/)\n");
}


void WpaGui::disconnect()
{
	char reply[10];
	size_t reply_len = sizeof(reply);
	ctrlRequest("DISCONNECT", reply, &reply_len);
}


void WpaGui::scan()
{
	if (scanres) {
		scanres->close();
		delete scanres;
	}

	scanres = new ScanResults();
	if (scanres == NULL)
		return;
	scanres->setWpaGui(this);
	scanres->show();
	scanres->exec();
}


void WpaGui::eventHistory()
{
	if (eh) {
		eh->close();
		delete eh;
	}

	eh = new EventHistory();
	if (eh == NULL)
		return;
	eh->addEvents(msgs);
	eh->show();
	eh->exec();
}


void WpaGui::ping()
{
	char buf[10];
	size_t len;

#ifdef CONFIG_CTRL_IFACE_NAMED_PIPE
	/*
	 * QSocketNotifier cannot be used with Windows named pipes, so use a
	 * timer to check for received messages for now. This could be
	 * optimized be doing something specific to named pipes or Windows
	 * events, but it is not clear what would be the best way of doing that
	 * in Qt.
	 */
	receiveMsgs();
#endif /* CONFIG_CTRL_IFACE_NAMED_PIPE */

	if (scanres && !scanres->isVisible()) {
		delete scanres;
		scanres = NULL;
	}

	if (eh && !eh->isVisible()) {
		delete eh;
		eh = NULL;
	}

	if (udr && !udr->isVisible()) {
		delete udr;
		udr = NULL;
	}

	len = sizeof(buf) - 1;
	if (ctrlRequest("PING", buf, &len) < 0) {
		printf("PING failed - trying to reconnect\n");
		if (openCtrlConnection(ctrl_iface) >= 0) {
			printf("Reconnected successfully\n");
			pingsToStatusUpdate = 0;
		}
	}

	pingsToStatusUpdate--;
	if (pingsToStatusUpdate <= 0) {
		updateStatus();
		updateNetworks();
	}
}


static int str_match(const char *a, const char *b)
{
	return strncmp(a, b, strlen(b)) == 0;
}


void WpaGui::processMsg(char *msg)
{
	char *pos = msg, *pos2;
	int priority = 2;

	if (*pos == '<') {
		/* skip priority */
		pos++;
		priority = atoi(pos);
		pos = strchr(pos, '>');
		if (pos)
			pos++;
		else
			pos = msg;
	}

	WpaMsg wm(pos, priority);
	if (eh)
		eh->addEvent(wm);
	msgs.append(wm);
	while (msgs.count() > 100)
		msgs.pop_front();

	/* Update last message with truncated version of the event */
	if (strncmp(pos, "CTRL-", 5) == 0) {
		pos2 = strchr(pos, str_match(pos, WPA_CTRL_REQ) ? ':' : ' ');
		if (pos2)
			pos2++;
		else
			pos2 = pos;
	} else
		pos2 = pos;
	QString lastmsg = pos2;
	lastmsg.truncate(40);
	textLastMessage->setText(lastmsg);

	pingsToStatusUpdate = 0;
	networkMayHaveChanged = true;

	if (str_match(pos, WPA_CTRL_REQ))
		processCtrlReq(pos + strlen(WPA_CTRL_REQ));
	else if (str_match(pos, WPA_EVENT_SCAN_RESULTS) && scanres)
		scanres->updateResults();
}


void WpaGui::processCtrlReq(const char *req)
{
	if (udr) {
		udr->close();
		delete udr;
	}
	udr = new UserDataRequest();
	if (udr == NULL)
		return;
	if (udr->setParams(this, req) < 0) {
		delete udr;
		udr = NULL;
		return;
	}
	udr->show();
	udr->exec();
}


void WpaGui::receiveMsgs()
{
	char buf[256];
	size_t len;

	while (monitor_conn && wpa_ctrl_pending(monitor_conn) > 0) {
		len = sizeof(buf) - 1;
		if (wpa_ctrl_recv(monitor_conn, buf, &len) == 0) {
			buf[len] = '\0';
			processMsg(buf);
		}
	}
}


void WpaGui::connectB()
{
	char reply[10];
	size_t reply_len = sizeof(reply);
	ctrlRequest("REASSOCIATE", reply, &reply_len);
}


void WpaGui::selectNetwork( const QString &sel )
{
	QString cmd(sel);
	char reply[10];
	size_t reply_len = sizeof(reply);

	if (cmd.startsWith("Select any")) {
		cmd = "any";
	} else {
		int pos = cmd.indexOf(':');
		if (pos < 0) {
			printf("Invalid selectNetwork '%s'\n",
			       cmd.toAscii().constData());
			return;
		}
		cmd.truncate(pos);
	}
	cmd.prepend("SELECT_NETWORK ");
	ctrlRequest(cmd.toAscii().constData(), reply, &reply_len);
	triggerUpdate();
}


void WpaGui::enableNetwork(const QString &sel)
{
	QString cmd(sel);
	char reply[10];
	size_t reply_len = sizeof(reply);

	if (!cmd.startsWith("all")) {
		int pos = cmd.indexOf(':');
		if (pos < 0) {
			printf("Invalid enableNetwork '%s'\n",
			       cmd.toAscii().constData());
			return;
		}
		cmd.truncate(pos);
	}
	cmd.prepend("ENABLE_NETWORK ");
	ctrlRequest(cmd.toAscii().constData(), reply, &reply_len);
	triggerUpdate();
}


void WpaGui::disableNetwork(const QString &sel)
{
	QString cmd(sel);
	char reply[10];
	size_t reply_len = sizeof(reply);

	if (!cmd.startsWith("all")) {
		int pos = cmd.indexOf(':');
		if (pos < 0) {
			printf("Invalid disableNetwork '%s'\n",
			       cmd.toAscii().constData());
			return;
		}
		cmd.truncate(pos);
	}
	cmd.prepend("DISABLE_NETWORK ");
	ctrlRequest(cmd.toAscii().constData(), reply, &reply_len);
	triggerUpdate();
}


void WpaGui::editNetwork(const QString &sel)
{
	QString cmd(sel);
	int id = -1;

	if (!cmd.startsWith("Select any")) {
		int pos = sel.indexOf(':');
		if (pos < 0) {
			printf("Invalid editNetwork '%s'\n",
			       cmd.toAscii().constData());
			return;
		}
		cmd.truncate(pos);
		id = cmd.toInt();
	}

	NetworkConfig *nc = new NetworkConfig();
	if (nc == NULL)
		return;
	nc->setWpaGui(this);

	if (id >= 0)
		nc->paramsFromConfig(id);
	else
		nc->newNetwork();

	nc->show();
	nc->exec();
}


void WpaGui::editSelectedNetwork()
{
	if (networkSelect->count() < 1) {
		QMessageBox::information(this, "No Networks",
			                 "There are no networks to edit.\n");
		return;
	}
	QString sel(networkSelect->currentText());
	editNetwork(sel);
}


void WpaGui::editListedNetwork()
{
	if (networkList->currentRow() < 0) {
		QMessageBox::information(this, "Select A Network",
					 "Select a network from the list to"
					 " edit it.\n");
		return;
	}
	QString sel(networkList->currentItem()->text());
	editNetwork(sel);
}


void WpaGui::triggerUpdate()
{
	updateStatus();
	networkMayHaveChanged = true;
	updateNetworks();
}


void WpaGui::addNetwork()
{
	NetworkConfig *nc = new NetworkConfig();
	if (nc == NULL)
		return;
	nc->setWpaGui(this);
	nc->newNetwork();
	nc->show();
	nc->exec();
}


void WpaGui::removeNetwork(const QString &sel)
{
	QString cmd(sel);
	char reply[10];
	size_t reply_len = sizeof(reply);

	if (cmd.startsWith("Select any"))
		return;

	if (!cmd.startsWith("all")) {
		int pos = cmd.indexOf(':');
		if (pos < 0) {
			printf("Invalid removeNetwork '%s'\n",
			       cmd.toAscii().constData());
			return;
		}
		cmd.truncate(pos);
	}
	cmd.prepend("REMOVE_NETWORK ");
	ctrlRequest(cmd.toAscii().constData(), reply, &reply_len);
	triggerUpdate();
}


void WpaGui::removeSelectedNetwork()
{
	if (networkSelect->count() < 1) {
		QMessageBox::information(this, "No Networks",
			                 "There are no networks to remove.\n");
		return;
	}
	QString sel(networkSelect->currentText());
	removeNetwork(sel);
}


void WpaGui::removeListedNetwork()
{
	if (networkList->currentRow() < 0) {
		QMessageBox::information(this, "Select A Network",
					 "Select a network from the list to"
					 " remove it.\n");
		return;
	}
	QString sel(networkList->currentItem()->text());
	removeNetwork(sel);
}


void WpaGui::enableAllNetworks()
{
	QString sel("all");
	enableNetwork(sel);
}


void WpaGui::disableAllNetworks()
{
	QString sel("all");
	disableNetwork(sel);
}


void WpaGui::removeAllNetworks()
{
	QString sel("all");
	removeNetwork(sel);
}


int WpaGui::getNetworkDisabled(const QString &sel)
{
	QString cmd(sel);
	char reply[10];
	size_t reply_len = sizeof(reply) - 1;
	int pos = cmd.indexOf(':');
	if (pos < 0) {
		printf("Invalid getNetworkDisabled '%s'\n",
		       cmd.toAscii().constData());
		return -1;
	}
	cmd.truncate(pos);
	cmd.prepend("GET_NETWORK ");
	cmd.append(" disabled");

	if (ctrlRequest(cmd.toAscii().constData(), reply, &reply_len) >= 0
	    && reply_len >= 1) {
		reply[reply_len] = '\0';
		if (!str_match(reply, "FAIL"))
			return atoi(reply);
	}

	return -1;
}


void WpaGui::updateNetworkDisabledStatus()
{
	if (networkList->currentRow() < 0)
		return;

	QString sel(networkList->currentItem()->text());

	switch (getNetworkDisabled(sel)) {
	case 0:
		if (!enableRadioButton->isChecked())
			enableRadioButton->setChecked(true);
		return;
	case 1:
		if (!disableRadioButton->isChecked())
			disableRadioButton->setChecked(true);
		return;
	}
}


void WpaGui::enableListedNetwork(bool enabled)
{
	if (networkList->currentRow() < 0 || !enabled)
		return;

	QString sel(networkList->currentItem()->text());

	if (getNetworkDisabled(sel) == 1)
		enableNetwork(sel);
}


void WpaGui::disableListedNetwork(bool disabled)
{
	if (networkList->currentRow() < 0 || !disabled)
		return;

	QString sel(networkList->currentItem()->text());

	if (getNetworkDisabled(sel) == 0)
		disableNetwork(sel);
}


void WpaGui::saveConfig()
{
	char buf[10];
	size_t len;

	len = sizeof(buf) - 1;
	ctrlRequest("SAVE_CONFIG", buf, &len);

	buf[len] = '\0';

	if (str_match(buf, "FAIL"))
		QMessageBox::warning(this, "Failed to save configuration",
			             "The configuration could not be saved.\n"
				     "\n"
				     "The update_config=1 configuration option\n"
				     "must be used for configuration saving to\n"
				     "be permitted.\n");
	else
		QMessageBox::information(this, "Saved configuration",
			                 "The current configuration was saved."
					 "\n");
}


void WpaGui::selectAdapter( const QString & sel )
{
	if (openCtrlConnection(sel.toAscii().constData()) < 0)
		printf("Failed to open control connection to "
		       "wpa_supplicant.\n");
	updateStatus();
	updateNetworks();
}


void WpaGui::closeEvent(QCloseEvent *event)
{
	if (eh) {
		eh->close();
		delete eh;
		eh = NULL;
	}

	if (scanres) {
		scanres->close();
		delete scanres;
		scanres = NULL;
	}

	if (udr) {
		udr->close();
		delete udr;
		udr = NULL;
	}

	event->accept();
}