vcs.maemo.org Git - mtetherd/blob - plugin.c

   1 /*
   2   mtetherd
   3   (c) 2010 Gregor Riepl <onitake@gmail.com>
   4
   5   Tethering utility for Maemo
   6
   7   This program is free software: you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation, either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <pwd.h>
  26 #include <sys/types.h>
  27 #include <gtk/gtk.h>
  28 #include <hildon/hildon.h>
  29 #include "plugin.h"
  30 #include "hal.h"
  31 #include "net.h"
  32 #include "util.h"
  33
  34 #define MTETHERD_STATUS_PLUGIN_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE(obj, TYPE_MTETHERD_STATUS_PLUGIN, MTetherDStatusPluginPrivate))
  35
  36 typedef enum {
  37         MTETHERD_STATUS_PLUGIN_USB_NET_UNKNOWN = 0,
  38         MTETHERD_STATUS_PLUGIN_USB_NET_DISABLED,
  39         MTETHERD_STATUS_PLUGIN_USB_NET_ENABLED,
  40 } MTetherDStatusPluginUsbNetState;
  41
  42 struct _MTetherDStatusPluginPrivate {
  43         GtkWidget *enable_button;
  44         gpointer devices;
  45         gboolean usb_plugged;
  46         MTetherDStatusPluginUsbNetState usbnet_state;
  47 };
  48
  49 #ifndef IMAGE_DIR
  50 #define IMAGE_DIR "/usr/share/pixmaps"
  51 #endif
  52 #ifndef SBIN_DIR
  53 #define SBIN_DIR "/usr/sbin"
  54 #endif
  55
  56 static const char *USBNET_MODULE = "g_ether";
  57 // The UDI contains the MAC address and is thus unsuitable for
  58 // loaded status checking, so we just use the interface name
  59 static const char *USBNET_INTERFACE = "usb0";
  60
  61 HD_DEFINE_PLUGIN_MODULE(MTetherDStatusPlugin, mtetherd_status_plugin, HD_TYPE_STATUS_MENU_ITEM);
  62
  63 static void mtetherd_status_plugin_class_finalize(MTetherDStatusPluginClass *klass) { }
  64
  65 static void mtetherd_status_plugin_finalize(GObject *object) {
  66         g_message("Destroying mtetherd status plugin");
  67
  68         MTetherDStatusPlugin *plugin = MTETHERD_STATUS_PLUGIN(object);
  69
  70         if (plugin && plugin->priv) {
  71                 mtetherd_hal_finalize(plugin);
  72                 mtetherd_device_list_free(plugin->priv->devices);
  73         }
  74 }
  75
  76 static void mtetherd_status_plugin_class_init(MTetherDStatusPluginClass *klass) {
  77         GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
  78
  79         if (gobject_class) {
  80                 gobject_class->finalize = mtetherd_status_plugin_finalize;
  81                 g_type_class_add_private(klass, sizeof(MTetherDStatusPluginPrivate));
  82         }
  83 }
  84
  85 static void mtetherd_status_plugin_enable_button_set_text(MTetherDStatusPlugin *plugin) {
  86         if (plugin && plugin->priv && plugin->priv->enable_button) {
  87                 switch (plugin->priv->usbnet_state) {
  88                         case MTETHERD_STATUS_PLUGIN_USB_NET_ENABLED:
  89                                 hildon_button_set_text(HILDON_BUTTON(plugin->priv->enable_button), "Toggle USB Networking", "Enabled");
  90                                 break;
  91                         case MTETHERD_STATUS_PLUGIN_USB_NET_DISABLED:
  92                                 hildon_button_set_text(HILDON_BUTTON(plugin->priv->enable_button), "Toggle USB Networking", "Disabled");
  93                                 break;
  94                         default:
  95                                 hildon_button_set_text(HILDON_BUTTON(plugin->priv->enable_button), "Toggle USB Networking", "Unknown");
  96                                 break;
  97                         }
  98         }
  99 }
 100
 101 static void mtetherd_status_plugin_enable_button_clicked(GtkWidget *button, gpointer data) {
 102         MTetherDStatusPlugin *plugin = MTETHERD_STATUS_PLUGIN(data);
 103
 104         if (plugin && plugin->priv && button == plugin->priv->enable_button) {
 105                 const char *arg;
 106                 switch (plugin->priv->usbnet_state) {
 107                         case MTETHERD_STATUS_PLUGIN_USB_NET_ENABLED:
 108                                 arg = SBIN_DIR "mtetherd-usbnet-disable.sh";
 109                                 break;
 110                         case MTETHERD_STATUS_PLUGIN_USB_NET_DISABLED:
 111                                 arg = SBIN_DIR "mtetherd-usbnet-enable.sh";
 112                                 break;
 113                         default:
 114                                 arg = NULL;
 115                                 break;
 116                 }
 117                 if (arg) {
 118                         g_debug("Launching %s", arg);
 119                         const char *command[] = { "/usr/bin/sudo", arg, NULL };
 120                         if (!mtetherd_launch_script(command)) {
 121                                 g_error("Error launching USB networking script");
 122                         }
 123                 }
 124         }
 125 }
 126
 127 static void mtetherd_status_plugin_usb_plugged_show(MTetherDStatusPlugin *plugin) {
 128         if (plugin && plugin->priv) {
 129                 if (plugin->priv->usb_plugged) {
 130                         gtk_widget_show(GTK_WIDGET(plugin));
 131                 } else {
 132                         gtk_widget_hide(GTK_WIDGET(plugin));
 133                 }
 134         }
 135 }
 136
 137 static void mtetherd_status_plugin_init(MTetherDStatusPlugin *plugin) {
 138         plugin->priv = MTETHERD_STATUS_PLUGIN_GET_PRIVATE(plugin);
 139
 140         plugin->priv->enable_button = hildon_button_new(HILDON_SIZE_AUTO_WIDTH | HILDON_SIZE_FINGER_HEIGHT, HILDON_BUTTON_ARRANGEMENT_VERTICAL);
 141         if (plugin->priv->enable_button) {
 142                 GError *err = NULL;
 143                 GdkPixbuf *icon = gdk_pixbuf_new_from_file(IMAGE_DIR "/mtetherd-net-icon.png", &err);
 144                 if (err) {
 145                         g_warning("Can't load mtetherd icon: %s", err->message);
 146                         g_error_free(err);
 147                         err = NULL;
 148                 }
 149                 if (icon) {
 150                         GtkWidget *image = gtk_image_new_from_pixbuf(icon);
 151                         hildon_button_set_image(HILDON_BUTTON(plugin->priv->enable_button), image);
 152                         hildon_button_set_image_position(HILDON_BUTTON(plugin->priv->enable_button), GTK_POS_LEFT);
 153                         g_object_unref(icon);
 154                 }
 155                 mtetherd_status_plugin_enable_button_set_text(plugin);
 156                 g_signal_connect(plugin->priv->enable_button, "clicked", G_CALLBACK(mtetherd_status_plugin_enable_button_clicked), plugin);
 157                 gtk_container_add(GTK_CONTAINER(plugin), plugin->priv->enable_button);
 158                 gtk_widget_show_all(plugin->priv->enable_button);
 159         }
 160
 161         if (mtetherd_hal_init(plugin)) {
 162                 plugin->priv->usb_plugged = mtetherd_usb_state(plugin);
 163                 plugin->priv->devices = mtetherd_device_list_new();
 164                 mtetherd_hal_device_scan(plugin);
 165         } else {
 166                 plugin->priv->usb_plugged = FALSE;
 167         }
 168
 169         // Unnecessary, we scan the network device name instead
 170         //plugin->priv->usbnet_loaded = mtetherd_scan_modules(USBNET_MODULE);
 171
 172         // Update the button status
 173         mtetherd_status_plugin_usb_plugged_show(plugin);
 174
 175         hildon_banner_show_informationf(GTK_WIDGET(plugin), NULL, "Initialized mtetherd status plugin");
 176 }
 177
 178 void mtetherd_status_plugin_device_added(MTetherDStatusPlugin *plugin, MTetherDDevice *device) {
 179         if (plugin && plugin->priv) {
 180                 const gchar *interface = mtetherd_device_get_interface(device);
 181                 if (mtetherd_device_ok(interface)) {
 182                         if (!mtetherd_device_list_add(plugin->priv->devices, device)) {
 183                                 g_warning("Error adding network interface to list: Maximum number of devices exceeded");
 184                         } else {
 185                                 if (g_strcmp0(USBNET_INTERFACE, interface) == 0) {
 186                                         plugin->priv->usbnet_state = MTETHERD_STATUS_PLUGIN_USB_NET_ENABLED;
 187                                         mtetherd_status_plugin_enable_button_set_text(plugin);
 188                                 }
 189                                 hildon_banner_show_informationf(GTK_WIDGET(plugin), NULL, "Starting network on %s", interface);
 190                                 // TODO: Launch network setup script
 191                         }
 192                 }
 193         }
 194 }
 195
 196 void mtetherd_status_plugin_device_removed(MTetherDStatusPlugin *plugin, const gchar *udi) {
 197         if (plugin && plugin->priv) {
 198                 MTetherDDevice *device = mtetherd_device_list_find(plugin->priv->devices, udi);
 199                 if (device) {
 200                         const gchar *interface = mtetherd_device_get_interface(device);
 201                         if (g_strcmp0(USBNET_INTERFACE, interface) == 0) {
 202                                 plugin->priv->usbnet_state = MTETHERD_STATUS_PLUGIN_USB_NET_DISABLED;
 203                                 mtetherd_status_plugin_enable_button_set_text(plugin);
 204                         }
 205                         hildon_banner_show_informationf(GTK_WIDGET(plugin), NULL, "Shutting down network on %s", interface);
 206                         // TODO: Launch network teardown script
 207                 }
 208                 if (!mtetherd_device_list_remove(plugin->priv->devices, udi)) {
 209                         g_warning("Error removing network interface from list: Not found");
 210                 }
 211         }
 212 }
 213
 214 void mtetherd_status_plugin_usb_plugged(MTetherDStatusPlugin *plugin) {
 215         mtetherd_status_plugin_usb_plugged_show(plugin);
 216 }
 217