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86Box/src/qt/qt_settingsnetwork.cpp
Mike Swanson 0d1e900fb6 Add GUI settings for shared secret, remove switch groups 
Two birds in one commit: with the introduction of shared secrets,
there is a practically-infinite amount of local switches that can be
used, by merely editing the shared secret string.  As such, support
for old switch groups has been removed.

In addition to this, the multicast address for local switch has been
altered to 239.255.80.86.  This ensures a hard compatibility break
with the previous code and old (albeit interim) builds of 86Box would
not attempt to receive packets with shared secrets.
2026-02-09 20:07:31 -08:00

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/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Network devices configuration UI module.
*
* Authors: Joakim L. Gilje <jgilje@jgilje.net>
*
* Copyright 2021 Joakim L. Gilje
*/
#include "qt_settingsnetwork.hpp"
#include "ui_qt_settingsnetwork.h"
extern "C" {
#include <86box/86box.h>
#include <86box/device.h>
#include <86box/machine.h>
#include <86box/timer.h>
#include <86box/thread.h>
#include <86box/network.h>
}
#include "qt_models_common.hpp"
#include "qt_deviceconfig.hpp"
void
SettingsNetwork::enableElements(Ui::SettingsNetwork *ui)
{
for (int i = 0; i < NET_CARD_MAX; ++i) {
auto *nic_cbox = findChild<QComboBox *>(QString("comboBoxNIC%1").arg(i + 1));
auto *net_type_cbox = findChild<QComboBox *>(QString("comboBoxNet%1").arg(i + 1));
auto *intf_label = findChild<QLabel *>(QString("labelIntf%1").arg(i + 1));
auto *intf_cbox = findChild<QComboBox *>(QString("comboBoxIntf%1").arg(i + 1));
auto *conf_btn = findChild<QPushButton *>(QString("pushButtonConf%1").arg(i + 1));
// auto *net_type_conf_btn = findChild<QPushButton *>(QString("pushButtonNetTypeConf%1").arg(i + 1));
auto *vde_socket_label = findChild<QLabel *>(QString("labelSocketVDENIC%1").arg(i + 1));
auto *socket_line = findChild<QLineEdit *>(QString("socketVDENIC%1").arg(i + 1));
auto *bridge_label = findChild<QLabel *>(QString("labelBridgeTAPNIC%1").arg(i + 1));
auto *bridge_line = findChild<QLineEdit *>(QString("bridgeTAPNIC%1").arg(i + 1));
auto *option_list_label = findChild<QLabel *>(QString("labelOptionList%1").arg(i + 1));
auto *option_list_line = findChild<QWidget *>(QString("lineOptionList%1").arg(i + 1));
// Shared secret
auto *secret_label = findChild<QLabel *>(QString("labelSecret%1").arg(i + 1));
auto *secret_value = findChild<QLineEdit *>(QString("secretSwitch%1").arg(i + 1));
// Promiscuous option
auto *promisc_label = findChild<QLabel *>(QString("labelPromisc%1").arg(i + 1));
auto *promisc_value = findChild<QCheckBox *>(QString("boxPromisc%1").arg(i + 1));
// Remote switch hostname
auto *hostname_label = findChild<QLabel *>(QString("labelHostname%1").arg(i + 1));
auto *hostname_value = findChild<QLineEdit *>(QString("hostnameSwitch%1").arg(i + 1));
bridge_line->setEnabled(net_type_cbox->currentData().toInt() == NET_TYPE_TAP);
intf_cbox->setEnabled(net_type_cbox->currentData().toInt() == NET_TYPE_PCAP);
conf_btn->setEnabled(network_card_has_config(nic_cbox->currentData().toInt()));
// net_type_conf_btn->setEnabled(network_type_has_config(netType));
// NEW STUFF
// Make all options invisible by default
secret_label->setVisible(false);
secret_value->setVisible(false);
// Promiscuous options
promisc_label->setVisible(false);
promisc_value->setVisible(false);
// Hostname
hostname_label->setVisible(false);
hostname_value->setVisible(false);
// Option list label and line
option_list_label->setVisible(false);
option_list_line->setVisible(false);
// VDE
vde_socket_label->setVisible(false);
socket_line->setVisible(false);
// TAP
bridge_label->setVisible(false);
bridge_line->setVisible(false);
// PCAP
intf_cbox->setVisible(false);
intf_label->setVisible(false);
// Don't enable anything unless there's a nic selected
if (nic_cbox->currentData().toInt() != 0) {
// Then only enable as needed based on network type
switch (net_type_cbox->currentData().toInt()) {
#ifdef HAS_VDE
case NET_TYPE_VDE:
// option_list_label->setText("VDE Options");
option_list_label->setVisible(true);
option_list_line->setVisible(true);
vde_socket_label->setVisible(true);
socket_line->setVisible(true);
break;
#endif
case NET_TYPE_PCAP:
// option_list_label->setText("PCAP Options");
option_list_label->setVisible(true);
option_list_line->setVisible(true);
intf_cbox->setVisible(true);
intf_label->setVisible(true);
break;
#if defined(__unix__) || defined(__APPLE__)
case NET_TYPE_TAP:
// option_list_label->setText("TAP Options");
option_list_label->setVisible(true);
option_list_line->setVisible(true);
bridge_label->setVisible(true);
bridge_line->setVisible(true);
break;
#endif
case NET_TYPE_NLSWITCH:
// option_list_label->setText("Local Switch Options");
option_list_label->setVisible(true);
option_list_line->setVisible(true);
// Shared secret
secret_label->setVisible(true);
secret_value->setVisible(true);
// Promiscuous options
promisc_label->setVisible(true);
promisc_value->setVisible(true);
break;
case NET_TYPE_NRSWITCH:
// option_list_label->setText("Remote Switch Options");
option_list_label->setVisible(true);
option_list_line->setVisible(true);
// Shared secret
secret_label->setVisible(true);
secret_value->setVisible(true);
// Hostname
hostname_label->setVisible(true);
hostname_value->setVisible(true);
break;
case NET_TYPE_SLIRP:
default:
break;
}
}
}
}
SettingsNetwork::SettingsNetwork(QWidget *parent)
: QWidget(parent)
, ui(new Ui::SettingsNetwork)
{
ui->setupUi(this);
onCurrentMachineChanged(machine);
enableElements(ui);
for (int i = 0; i < NET_CARD_MAX; i++) {
auto *nic_cbox = findChild<QComboBox *>(QString("comboBoxNIC%1").arg(i + 1));
auto *net_type_cbox = findChild<QComboBox *>(QString("comboBoxNet%1").arg(i + 1));
auto *intf_cbox = findChild<QComboBox *>(QString("comboBoxIntf%1").arg(i + 1));
connect(nic_cbox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &SettingsNetwork::on_comboIndexChanged);
connect(net_type_cbox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &SettingsNetwork::on_comboIndexChanged);
connect(intf_cbox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &SettingsNetwork::on_comboIndexChanged);
}
}
SettingsNetwork::~SettingsNetwork()
{
delete ui;
}
void
SettingsNetwork::save()
{
for (int i = 0; i < NET_CARD_MAX; ++i) {
auto *cbox = findChild<QComboBox *>(QString("comboBoxNIC%1").arg(i + 1));
#ifdef HAS_VDE
auto *socket_line = findChild<QLineEdit *>(QString("socketVDENIC%1").arg(i + 1));
#endif
#if defined(__unix__) || defined(__APPLE__)
auto *bridge_line = findChild<QLineEdit *>(QString("bridgeTAPNIC%1").arg(i + 1));
#endif
net_cards_conf[i].device_num = cbox->currentData().toInt();
cbox = findChild<QComboBox *>(QString("comboBoxNet%1").arg(i + 1));
net_cards_conf[i].net_type = cbox->currentData().toInt();
cbox = findChild<QComboBox *>(QString("comboBoxIntf%1").arg(i + 1));
auto *hostname_value = findChild<QLineEdit *>(QString("hostnameSwitch%1").arg(i + 1));
auto *promisc_value = findChild<QCheckBox *>(QString("boxPromisc%1").arg(i + 1));
auto *secret_value = findChild<QLineEdit *>(QString("secretSwitch%1").arg(i + 1));
memset(net_cards_conf[i].host_dev_name, '\0', sizeof(net_cards_conf[i].host_dev_name));
if (net_cards_conf[i].net_type == NET_TYPE_PCAP)
strncpy(net_cards_conf[i].host_dev_name, network_devs[cbox->currentData().toInt()].device, sizeof(net_cards_conf[i].host_dev_name) - 1);
#ifdef HAS_VDE
else if (net_cards_conf[i].net_type == NET_TYPE_VDE)
strncpy(net_cards_conf[i].host_dev_name, socket_line->text().toUtf8().constData(), sizeof(net_cards_conf[i].host_dev_name));
#endif
#if defined(__unix__) || defined(__APPLE__)
else if (net_cards_conf[i].net_type == NET_TYPE_TAP)
strncpy(net_cards_conf[i].host_dev_name, bridge_line->text().toUtf8().constData(), sizeof(net_cards_conf[i].host_dev_name));
#endif
else if (net_cards_conf[i].net_type == NET_TYPE_NRSWITCH) {
memset(net_cards_conf[i].nrs_hostname, '\0', sizeof(net_cards_conf[i].nrs_hostname));
strncpy(net_cards_conf[i].nrs_hostname, hostname_value->text().toUtf8().constData(), sizeof(net_cards_conf[i].nrs_hostname) - 1);
memset(net_cards_conf[i].secret, '\0', sizeof(net_cards_conf[i].secret));
strncpy(net_cards_conf[i].secret, secret_value->text().toUtf8().constData(), sizeof(net_cards_conf[i].secret) - 1);
} else if (net_cards_conf[i].net_type == NET_TYPE_NLSWITCH) {
net_cards_conf[i].promisc_mode = promisc_value->isChecked();
memset(net_cards_conf[i].secret, '\0', sizeof(net_cards_conf[i].secret));
strncpy(net_cards_conf[i].secret, secret_value->text().toUtf8().constData(), sizeof(net_cards_conf[i].secret) - 1);
}
}
}
void
SettingsNetwork::onCurrentMachineChanged(int machineId)
{
this->machineId = machineId;
int c = 0;
int selectedRow = 0;
// Network Card
QComboBox *cbox_[NET_CARD_MAX] = { 0 };
QAbstractItemModel *models[NET_CARD_MAX] = { 0 };
int removeRows_[NET_CARD_MAX] = { 0 };
int selectedRows[NET_CARD_MAX] = { 0 };
int m_has_net = machine_has_flags(machineId, MACHINE_NIC);
for (uint8_t i = 0; i < NET_CARD_MAX; ++i) {
cbox_[i] = findChild<QComboBox *>(QString("comboBoxNIC%1").arg(i + 1));
models[i] = cbox_[i]->model();
removeRows_[i] = models[i]->rowCount();
}
c = 0;
while (true) {
const QString name = DeviceConfig::DeviceName(network_card_getdevice(c),
network_card_get_internal_name(c), 1);
if (name.isEmpty())
break;
if (network_card_available(c)) {
if (device_is_valid(network_card_getdevice(c), machineId)) {
for (uint8_t i = 0; i < NET_CARD_MAX; ++i) {
if ((c != 1) || ((i == 0) && m_has_net)) {
int row = Models::AddEntry(models[i], name, c);
if (c == net_cards_conf[i].device_num)
selectedRows[i] = row - removeRows_[i];
}
}
}
}
c++;
}
for (uint8_t i = 0; i < NET_CARD_MAX; ++i) {
models[i]->removeRows(0, removeRows_[i]);
cbox_[i]->setEnabled(models[i]->rowCount() > 1);
cbox_[i]->setCurrentIndex(-1);
cbox_[i]->setCurrentIndex(selectedRows[i]);
auto cbox = findChild<QComboBox *>(QString("comboBoxNet%1").arg(i + 1));
auto model = cbox->model();
auto removeRows = model->rowCount();
Models::AddEntry(model, tr("Null Driver"), NET_TYPE_NONE);
Models::AddEntry(model, "SLiRP", NET_TYPE_SLIRP);
if (network_ndev > 1)
Models::AddEntry(model, "PCap", NET_TYPE_PCAP);
#ifdef HAS_VDE
if (network_devmap.has_vde)
Models::AddEntry(model, "VDE", NET_TYPE_VDE);
#endif
#if defined(__unix__) || defined(__APPLE__)
Models::AddEntry(model, "TAP", NET_TYPE_TAP);
#endif
Models::AddEntry(model, "Local Switch", NET_TYPE_NLSWITCH);
#ifdef ENABLE_NET_NRSWITCH
Models::AddEntry(model, "Remote Switch", NET_TYPE_NRSWITCH);
#endif /* ENABLE_NET_NRSWITCH */
model->removeRows(0, removeRows);
cbox->setCurrentIndex(cbox->findData(net_cards_conf[i].net_type));
selectedRow = 0;
if (network_ndev > 0) {
QString currentPcapDevice = net_cards_conf[i].host_dev_name;
cbox = findChild<QComboBox *>(QString("comboBoxIntf%1").arg(i + 1));
model = cbox->model();
removeRows = model->rowCount();
for (int c = 0; c < network_ndev; c++) {
Models::AddEntry(model, tr(network_devs[c].description), c);
if (QString(network_devs[c].device) == currentPcapDevice) {
selectedRow = c;
}
}
model->removeRows(0, removeRows);
cbox->setCurrentIndex(selectedRow);
}
if (net_cards_conf[i].net_type == NET_TYPE_VDE) {
#ifdef HAS_VDE
QString currentVdeSocket = net_cards_conf[i].host_dev_name;
auto editline = findChild<QLineEdit *>(QString("socketVDENIC%1").arg(i + 1));
editline->setText(currentVdeSocket);
#else
;
#endif
#if defined(__unix__) || defined(__APPLE__)
} else if (net_cards_conf[i].net_type == NET_TYPE_TAP) {
QString currentTapDevice = net_cards_conf[i].host_dev_name;
auto editline = findChild<QLineEdit *>(QString("bridgeTAPNIC%1").arg(i + 1));
editline->setText(currentTapDevice);
#endif
} else if (net_cards_conf[i].net_type == NET_TYPE_NLSWITCH) {
auto *promisc_value = findChild<QCheckBox *>(QString("boxPromisc%1").arg(i + 1));
promisc_value->setCheckState(net_cards_conf[i].promisc_mode == 1 ? Qt::CheckState::Checked : Qt::CheckState::Unchecked);
auto *secret_value = findChild<QLineEdit *>(QString("secretSwitch%1").arg(i + 1));
secret_value->setText(net_cards_conf[i].secret);
} else if (net_cards_conf[i].net_type == NET_TYPE_NRSWITCH) {
auto *hostname_value = findChild<QLineEdit *>(QString("hostnameSwitch%1").arg(i + 1));
hostname_value->setText(net_cards_conf[i].nrs_hostname);
auto *secret_value = findChild<QLineEdit *>(QString("secretSwitch%1").arg(i + 1));
secret_value->setText(net_cards_conf[i].secret);
}
}
}
void
SettingsNetwork::on_comboIndexChanged(int index)
{
if (index < 0)
return;
enableElements(ui);
}
void
SettingsNetwork::on_pushButtonConf1_clicked()
{
int netCard = ui->comboBoxNIC1->currentData().toInt();
auto *device = network_card_getdevice(netCard);
if (netCard == NET_INTERNAL)
device = machine_get_net_device(machineId);
DeviceConfig::ConfigureDevice(device, 1);
}
void
SettingsNetwork::on_pushButtonConf2_clicked()
{
int netCard = ui->comboBoxNIC2->currentData().toInt();
auto *device = network_card_getdevice(netCard);
DeviceConfig::ConfigureDevice(device, 2);
}
void
SettingsNetwork::on_pushButtonConf3_clicked()
{
int netCard = ui->comboBoxNIC3->currentData().toInt();
auto *device = network_card_getdevice(netCard);
DeviceConfig::ConfigureDevice(device, 3);
}
void
SettingsNetwork::on_pushButtonConf4_clicked()
{
int netCard = ui->comboBoxNIC4->currentData().toInt();
auto *device = network_card_getdevice(netCard);
DeviceConfig::ConfigureDevice(device, 4);
}
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