4 files changed, 91 insertions, 7 deletions

diff --git a/ui/qt5/horizon.qrc b/ui/qt5/horizon.qrc
index b828069..562418c 100644
--- a/ui/qt5/horizon.qrc
+++ b/ui/qt5/horizon.qrc
@@ -12,6 +12,7 @@
         <file>resources/input-help.txt</file>
         <file>resources/partition-help.txt</file>
         <file>resources/network-start-help.txt</file>
+        <file>resources/network-iface-help.txt</file>
         <file>resources/packages-simple-help.txt</file>
     </qresource>
     <qresource prefix="/">
diff --git a/ui/qt5/networkifacepage.cc b/ui/qt5/networkifacepage.cc
index d8a9655..323bbe2 100644
--- a/ui/qt5/networkifacepage.cc
+++ b/ui/qt5/networkifacepage.cc
@@ -13,27 +13,45 @@
 #include "networkifacepage.hh"
 #include "horizonwizard.hh"
 
+#ifdef HAS_INSTALL_ENV
+#   include <net/if.h>      /* ifreq */
+#   include <sys/ioctl.h>   /* ioctl */
+#   include <unistd.h>      /* close */
+#endif
+
+#include <algorithm>
+#include <QDebug>
 #include <QLabel>
 #include <QListView>
-#include <QListWidget>
 #include <QVBoxLayout>
 
 NetworkIfacePage::NetworkIfacePage(QWidget *parent) :
     HorizonWizardPage(parent) {
     loadWatermark("network");
     setTitle(tr("Multiple Network Interfaces Detected"));
+
+    ifaceList = new QListWidget(this);
+    connect(ifaceList, &QListWidget::currentRowChanged, [=](int row) {
+        emit completeChanged();
+        if(row == -1) return;
+        auto iterator = horizonWizard()->interfaces.begin();
+        std::advance(iterator, row);
+        horizonWizard()->chosen_auto_iface = iterator->first;
+    });
+
+    ifaceList->setGridSize(QSize(160, 128));
+    ifaceList->setIconSize(QSize(96, 96));
+    ifaceList->setViewMode(QListView::IconMode);
 }
 
 void NetworkIfacePage::initializePage() {
     QLabel *descLabel;
-    QListWidget *ifaceList;
     QVBoxLayout *layout;
 
     descLabel = new QLabel(tr(
         "Your computer has more than one network interface device.  Select the one you wish to use during installation."));
     descLabel->setWordWrap(true);
 
-    ifaceList = new QListWidget(this);
     for(auto &iface : horizonWizard()->interfaces) {
         QIcon ifaceIcon;
         QString ifaceDevName = QString::fromStdString(iface.first);
@@ -58,14 +76,52 @@ void NetworkIfacePage::initializePage() {
             break;
         }
 
-        new QListWidgetItem(ifaceIcon, ifaceName, ifaceList);
+        QListWidgetItem *item = new QListWidgetItem(ifaceIcon, ifaceName,
+                                                    ifaceList);
+        /* Retrieving the index is always valid, and is not even privileged. */
+        struct ifreq request;
+        int my_sock = ::socket(AF_INET, SOCK_STREAM, 0);
+        if(my_sock == -1) {
+            continue;
+        }
+        memset(&request, 0, sizeof(request));
+        memcpy(&request.ifr_name, iface.first.c_str(), iface.first.size());
+        errno = 0;
+        if(ioctl(my_sock, SIOCGIFHWADDR, &request) != -1) {
+            char *buf;
+            asprintf(&buf, "%02X:%02X:%02X:%02X:%02X:%02X",
+                     request.ifr_ifru.ifru_hwaddr.sa_data[0],
+                     request.ifr_ifru.ifru_hwaddr.sa_data[1],
+                     request.ifr_ifru.ifru_hwaddr.sa_data[2],
+                     request.ifr_ifru.ifru_hwaddr.sa_data[3],
+                     request.ifr_ifru.ifru_hwaddr.sa_data[4],
+                     request.ifr_ifru.ifru_hwaddr.sa_data[5]);
+            item->setToolTip(QString(buf));
+            free(buf);
+        }
+        ::close(my_sock);
     }
-    ifaceList->setGridSize(QSize(160, 128));
-    ifaceList->setIconSize(QSize(96, 96));
-    ifaceList->setViewMode(QListView::IconMode);
 
     layout = new QVBoxLayout;
     layout->addWidget(descLabel);
     layout->addWidget(ifaceList);
     setLayout(layout);
 }
+
+bool NetworkIfacePage::isComplete() const {
+    return ifaceList->currentRow() != -1;
+}
+
+int NetworkIfacePage::nextId() const {
+    if(ifaceList->currentRow() < 0) return HorizonWizard::Page_Network_Iface;
+
+    auto iterator = horizonWizard()->interfaces.begin();
+    std::advance(iterator, ifaceList->currentRow());
+
+    switch(iterator->second) {
+    case HorizonWizard::Wireless:
+        return HorizonWizard::Page_Network_Wireless;
+    default:
+        return HorizonWizard::Page_Network_DHCP;
+    }
+}
diff --git a/ui/qt5/networkifacepage.hh b/ui/qt5/networkifacepage.hh
index bcd37c6..05b0e2b 100644
--- a/ui/qt5/networkifacepage.hh
+++ b/ui/qt5/networkifacepage.hh
@@ -13,12 +13,18 @@
 #ifndef NETWORKIFACEPAGE_HH
 #define NETWORKIFACEPAGE_HH
 
+#include <QListWidget>
+
 #include "horizonwizardpage.hh"
 
 class NetworkIfacePage : public HorizonWizardPage {
 public:
     NetworkIfacePage(QWidget *parent = nullptr);
     void initializePage() override;
+    bool isComplete() const;
+    int nextId() const;
+private:
+    QListWidget *ifaceList;
 };
 
 #endif /* !NETWORKIFACEPAGE_HH */
diff --git a/ui/qt5/resources/network-iface-help.txt b/ui/qt5/resources/network-iface-help.txt
new file mode 100644
index 0000000..14e31d8
--- /dev/null
+++ b/ui/qt5/resources/network-iface-help.txt
@@ -0,0 +1,21 @@
+<h2>Network Interface Selection</h2>
+
+<p>This page is shown when your computer has multiple network interfaces.
+Select the one that you wish to use during installation.  You can configure
+additional network interfaces after installation.</p>
+
+<h3>How do I know which interface to select?</h3>
+
+<ul>
+ <li>If you use a wireless connection, select <b>Wi-Fi</b>.</li>
+ <li>If you use a wired connection, select <b>Ethernet</b>.</li>
+</ul>
+
+<p>If you're not sure which interface is correct, and you know the MAC address
+of your interface, use the mouse to hover over each interface.  Each interface
+has its MAC address in its tool-tip.</p>
+
+<p>If you see multiple interfaces of the same type, and you aren't expecting
+this, your hardware may have been incorrectly detected by Adélie Linux.  You
+can contact our community for help at <a href="https://help.adelielinux.org/">
+https://help.adelielinux.org/</a>.</p>