roy.marples.name Git - dhcpcd-ui/blob - main.c

   1 /*
   2  * dhcpcd-gtk
   3  * Copyright 2009 Roy Marples <roy@marples.name>
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 /* TODO: Animate the icon from carrier -> address
  28  * maybe use network-idle -> network-transmit ->
  29  * network-receive -> network-transmit-receive */
  30
  31 #include <locale.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 #include <libnotify/notify.h>
  36
  37 #include "dhcpcd-gtk.h"
  38 #include "menu.h"
  39
  40 DBusGProxy *dbus = NULL;
  41 GList *interfaces = NULL;
  42
  43 static GtkStatusIcon *status_icon = NULL;
  44 static NotifyNotification *nn;
  45 static gboolean online;
  46 static gboolean carrier;
  47 static char **interface_order;
  48
  49 const char *const up_reasons[] = {
  50         "BOUND",
  51         "RENEW",
  52         "REBIND",
  53         "REBOOT",
  54         "IPV4LL",
  55         "INFORM",
  56         "TIMEOUT",
  57         NULL
  58 };
  59
  60 const char *const down_reasons[] = {
  61         "EXPIRE",
  62         "FAIL",
  63         "NAK",
  64         "NOCARRIER",
  65         "STOP",
  66         NULL
  67 };
  68
  69 static gboolean
  70 ignore_if_msg(const struct if_msg *ifm)
  71 {
  72         if (g_strcmp0(ifm->reason, "STOP") == 0 ||
  73             g_strcmp0(ifm->reason, "RELEASE") == 0)
  74                 return TRUE;
  75         return FALSE;
  76 }
  77
  78 static void
  79 free_if_msg(struct if_msg *ifm)
  80 {
  81         g_free(ifm->name);
  82         g_free(ifm->reason);
  83         g_free(ifm->ssid);
  84         g_free(ifm);
  85 }
  86
  87 static void
  88 error_exit(const char *msg, GError *error)
  89 {
  90         GtkWidget *dialog;
  91
  92         if (error) {
  93                 g_critical("%s: %s", msg, error->message);
  94                 dialog = gtk_message_dialog_new(NULL,
  95                                                 0,
  96                                                 GTK_MESSAGE_ERROR,
  97                                                 GTK_BUTTONS_CLOSE,
  98                                                 "%s: %s",
  99                                                 msg,
 100                                                 error->message);
 101         } else {
 102                 g_critical("%s", msg);
 103                 dialog = gtk_message_dialog_new(NULL,
 104                                                 0,
 105                                                 GTK_MESSAGE_ERROR,
 106                                                 GTK_BUTTONS_CLOSE,
 107                                                 "%s",
 108                                                 msg);
 109         }
 110         gtk_dialog_run(GTK_DIALOG(dialog));
 111         gtk_widget_destroy(dialog);
 112         if (gtk_main_level())
 113                 gtk_main_quit();
 114         else
 115                 exit(EXIT_FAILURE);
 116 }
 117
 118 static struct if_msg *
 119 make_if_msg(GHashTable *config)
 120 {
 121         GValue *val;
 122         struct if_msg *ifm;
 123
 124         val = g_hash_table_lookup(config, "Interface");
 125         if (val == NULL)
 126                 return NULL;
 127         ifm = g_malloc0(sizeof(*ifm));
 128         ifm->name = g_strdup(g_value_get_string(val));
 129         val = g_hash_table_lookup(config, "Reason");
 130         if (val)
 131                 ifm->reason = g_strdup(g_value_get_string(val));
 132         val = g_hash_table_lookup(config, "Wireless");
 133         if (val)
 134                 ifm->wireless = g_value_get_boolean(val);
 135         if (ifm->wireless) {
 136                 val = g_hash_table_lookup(config, "SSID");
 137                 if (val)
 138                         ifm->ssid = g_strdup(g_value_get_string(val));
 139         }
 140         val = g_hash_table_lookup(config, "IPAddress");
 141         if (val)
 142                 ifm->ip.s_addr = g_value_get_uint(val);
 143         val = g_hash_table_lookup(config, "SubnetCIDR");
 144         if (val)
 145                 ifm->cidr = g_value_get_uchar(val);
 146         val = g_hash_table_lookup(config, "InterfaceOrder");
 147         if (val) {
 148                 g_strfreev(interface_order);
 149                 interface_order = g_strsplit(g_value_get_string(val), " ", 0);
 150         }
 151         return ifm;
 152 }
 153
 154 static gboolean
 155 if_up(const struct if_msg *ifm)
 156 {
 157         const char *const *r;
 158
 159         for (r = up_reasons; *r; r++)
 160                 if (g_strcmp0(*r, ifm->reason) == 0)
 161                         return TRUE;
 162         return FALSE;
 163 }
 164
 165 static char *
 166 print_if_msg(const struct if_msg *ifm)
 167 {
 168         char *msg, *p;
 169         const char *reason = NULL;
 170         size_t len;
 171         gboolean showip, showssid;
 172
 173         showip = TRUE;
 174         showssid = FALSE;
 175         if (if_up(ifm))
 176                 reason = N_("Acquired address");
 177         else {
 178                 if (g_strcmp0(ifm->reason, "EXPIRE") == 0)
 179                         reason = N_("Failed to renew");
 180                 else if (g_strcmp0(ifm->reason, "CARRIER") == 0) {
 181                         if (ifm->wireless) {
 182                                 reason = N_("Asssociated with");
 183                                 if (ifm->ssid != NULL)
 184                                         showssid = TRUE;
 185                         } else
 186                                 reason = N_("Cable plugged in");
 187                         showip = FALSE;
 188                 } else if (g_strcmp0(ifm->reason, "NOCARRIER") == 0) {
 189                         if (ifm->wireless) {
 190                                 if (ifm->ssid != NULL || ifm->ip.s_addr != 0) {
 191                                         reason = N_("Lost association with");
 192                                         showssid = TRUE;
 193                                 } else
 194                                     reason = N_("Not associated");
 195                         } else
 196                                 reason = N_("Cable unplugged");
 197                         showip = FALSE;
 198                 }
 199         }
 200         if (reason == NULL)
 201                 reason = ifm->reason;
 202
 203         len = strlen(ifm->name) + 3;
 204         len += strlen(reason) + 1;
 205         if (ifm->ip.s_addr != 0) {
 206                 len += 16; /* 000. * 4 */
 207                 if (ifm->cidr != 0)
 208                         len += 3; /* /32 */
 209         }
 210         if (showssid)
 211                 len += strlen(ifm->ssid) + 1;
 212         msg = p = g_malloc(len);
 213         p += g_snprintf(msg, len, "%s: %s", ifm->name, reason);
 214         if (showssid)
 215                 p += g_snprintf(p, len - (p - msg), " %s", ifm->ssid);
 216         if (ifm->ip.s_addr != 0 && showip) {
 217                 p += g_snprintf(p, len - (p - msg), " %s", inet_ntoa(ifm->ip));
 218                 if (ifm->cidr != 0)
 219                         g_snprintf(p, len - (p - msg), "/%d", ifm->cidr);
 220         }
 221         return msg;
 222 }
 223
 224 static gint
 225 if_msg_comparer(gconstpointer a, gconstpointer b)
 226 {
 227         const struct if_msg *ifa, *ifb;
 228         const char *const *order;
 229
 230         ifa = (const struct if_msg *)a;
 231         ifb = (const struct if_msg *)b;
 232         for (order = (const char *const *)interface_order; *order; order++) {
 233                 if (g_strcmp0(*order, ifa->name) == 0)
 234                         return -1;
 235                 if (g_strcmp0(*order, ifb->name) == 0)
 236                         return 1;
 237         }
 238         return 0;
 239 }
 240
 241 static void
 242 update_online(char **buffer)
 243 {
 244         gboolean ison, iscarrier;
 245         char *msg, *msgs, *tmp;
 246         const char *icon;
 247         const GList *gl;
 248         const struct if_msg *ifm;
 249
 250         ison = iscarrier = FALSE;
 251         msgs = NULL;
 252         for (gl = interfaces; gl; gl = gl->next) {
 253                 ifm = (const struct if_msg *)gl->data;
 254                 if (if_up(ifm))
 255                         ison = iscarrier = TRUE;
 256                 if (!iscarrier && g_strcmp0(ifm->reason, "CARRIER") == 0)
 257                         iscarrier = TRUE;
 258                 msg = print_if_msg(ifm);
 259                 if (msgs) {
 260                         tmp = g_strconcat(msgs, "\n", msg, NULL);
 261                         g_free(msgs);
 262                         g_free(msg);
 263                         msgs = tmp;
 264                 } else
 265                         msgs = msg;
 266         }
 267
 268         if (online != ison || carrier != iscarrier) {
 269                 online = ison;
 270                 if (ison)
 271                         icon = "network-transmit-receive";
 272                 else if (iscarrier)
 273                         icon = "network-transmit";
 274                 else
 275                         icon = "network-offline";
 276                 gtk_status_icon_set_from_icon_name(status_icon, icon);
 277         }
 278         gtk_status_icon_set_tooltip(status_icon, msgs);
 279         if (buffer)
 280                 *buffer = msgs;
 281         else
 282                 g_free(msgs);
 283 }
 284
 285 void
 286 notify_close(void)
 287 {
 288         if (nn != NULL)
 289                 notify_notification_close(nn, NULL);
 290 }
 291
 292 static void
 293 notify_closed(void)
 294 {
 295         nn = NULL;
 296 }
 297
 298 static void
 299 notify(const char *title, const char *msg, const char *icon)
 300 {
 301         char **msgs, **m;
 302
 303         msgs = g_strsplit(msg, "\n", 0);
 304         for (m = msgs; *m; m++)
 305                 g_message("%s", *m);
 306         g_strfreev(msgs);
 307         if (nn != NULL)
 308                 notify_notification_close(nn, NULL);
 309         if (gtk_status_icon_get_visible(status_icon))
 310                 nn = notify_notification_new_with_status_icon(title,
 311                                                               msg,
 312                                                               icon,
 313                                                               status_icon);
 314         else
 315                 nn = notify_notification_new(title, msg, icon, NULL);
 316         notify_notification_set_timeout(nn, 5000);
 317         g_signal_connect(nn, "closed", G_CALLBACK(notify_closed), NULL);
 318         notify_notification_show(nn, NULL);
 319 }
 320
 321 static void
 322 dhcpcd_event(_unused DBusGProxy *proxy, GHashTable *config, _unused void *data)
 323 {
 324         struct if_msg *ifm, *ifp;
 325         gboolean rem;
 326         GList *gl;
 327         char *msg, *title;
 328         const char *act, *net;
 329         const char *const *r;
 330         in_addr_t ipn;
 331
 332         ifm = make_if_msg(config);
 333         if (ifm == NULL)
 334                 return;
 335
 336         rem = ignore_if_msg(ifm);
 337         ifp = NULL;
 338         for (gl = interfaces; gl; gl = gl->next) {
 339                 ifp = (struct if_msg *)gl->data;
 340                 if (g_strcmp0(ifp->name, ifm->name) == 0) {
 341                         free_if_msg(ifp);
 342                         if (rem)
 343                                 interfaces = g_list_delete_link(interfaces, gl);
 344                         else
 345                                 gl->data = ifm;
 346                         break;
 347                 }
 348         }
 349         if (ifp == NULL && !rem)
 350                 interfaces = g_list_prepend(interfaces, ifm);
 351         interfaces = g_list_sort(interfaces, if_msg_comparer);
 352         update_online(NULL);
 353
 354         /* We should ignore renew and stop so we don't annoy the user */
 355         if (g_strcmp0(ifm->reason, "RENEW") == 0 ||
 356             g_strcmp0(ifm->reason, "STOP") == 0)
 357                 return;
 358
 359         msg = print_if_msg(ifm);
 360         title = NULL;
 361         if (if_up(ifm))
 362                 act = N_("Connected to ");
 363         else
 364                 act = NULL;
 365         for (r = down_reasons; *r; r++) {
 366                 if (g_strcmp0(*r, ifm->reason) == 0) {
 367                         act = N_("Disconnected from ");
 368                         break;
 369                 }
 370         }
 371         if (act && ifm->ip.s_addr) {
 372                 ipn = htonl(ifm->ip.s_addr);
 373                 if (IN_LINKLOCAL(ipn))
 374                         net = N_("private network");
 375                 else if (IN_PRIVATE(ipn))
 376                         net = N_("LAN");
 377                 else
 378                         net = N_("internet");
 379                 title = g_strconcat(act, net, NULL);
 380         }
 381
 382         if (title) {
 383                 notify(title, msg, GTK_STOCK_NETWORK);
 384                 g_free(title);
 385         } else
 386                 notify("Interface event", msg, GTK_STOCK_NETWORK);
 387         g_free(msg);
 388 }
 389
 390 static void
 391 foreach_make_ifm(_unused gpointer key, gpointer value, _unused gpointer data)
 392 {
 393         struct if_msg *ifm;
 394
 395         ifm = make_if_msg((GHashTable *)value);
 396         if (ignore_if_msg(ifm))
 397                 g_free(ifm);
 398         else if (ifm)
 399                 interfaces = g_list_prepend(interfaces, ifm);
 400 }
 401
 402 static void
 403 dhcpcd_get_interfaces()
 404 {
 405         GHashTable *ifs;
 406         GError *error = NULL;
 407         GType otype;
 408         char *msg;
 409
 410         otype = dbus_g_type_get_map("GHashTable", G_TYPE_STRING, G_TYPE_VALUE);
 411         otype = dbus_g_type_get_map("GHashTable", G_TYPE_STRING, otype);
 412         if (!dbus_g_proxy_call(dbus, "GetInterfaces", &error,
 413                                G_TYPE_INVALID,
 414                                otype, &ifs, G_TYPE_INVALID))
 415                 error_exit("GetInterfaces", error);
 416         g_hash_table_foreach(ifs, foreach_make_ifm, NULL);
 417         g_hash_table_unref(ifs);
 418
 419         /* Each interface config only remembers the last order when
 420          * that interface was configured, so get the real order now. */
 421         g_strfreev(interface_order);
 422         interface_order = NULL;
 423         if (!dbus_g_proxy_call(dbus, "ListInterfaces", &error,
 424                                G_TYPE_INVALID,
 425                                G_TYPE_STRV, &interface_order, G_TYPE_INVALID))
 426                 error_exit("ListInterfaces", error);
 427         interfaces = g_list_sort(interfaces, if_msg_comparer);
 428         msg = NULL;
 429         update_online(&msg);
 430         // GTK+ 2.16 msg = gtk_status_icon_get_tooltip_text(status_icon);
 431         if (msg != NULL) {
 432                 notify("Interface status", msg, GTK_STOCK_NETWORK);
 433                 g_free(msg);
 434         }
 435 }
 436
 437 static void
 438 check_status(const char *status)
 439 {
 440         static char *last = NULL;
 441         GList *gl;
 442         char *version;
 443         const char *msg;
 444         gboolean refresh;
 445         GError *error = NULL;
 446
 447         g_message("Status changed to %s", status);
 448         if (g_strcmp0(status, "down") == 0) {
 449                 for (gl = interfaces; gl; gl = gl->next)
 450                         free_if_msg((struct if_msg *)gl->data);
 451                 g_list_free(interfaces);
 452                 interfaces = NULL;
 453                 update_online(NULL);
 454                 msg = N_(last? "Connection to dhcpcd lost" : "dhcpcd not running");
 455                 gtk_status_icon_set_tooltip(status_icon, msg);
 456                 notify(_("No network"), msg, GTK_STOCK_NETWORK);
 457         }
 458
 459         refresh = FALSE;
 460         if (last == NULL) {
 461                 if (g_strcmp0(status, "down") != 0)
 462                         refresh = TRUE;
 463         } else {
 464                 if (g_strcmp0(status, last) == 0)
 465                         return;
 466                 if (g_strcmp0(last, "down") == 0)
 467                         refresh = TRUE;
 468                 g_free(last);
 469         }
 470         last = g_strdup(status);
 471
 472         if (!refresh)
 473                 return;
 474         if (!dbus_g_proxy_call(dbus, "GetDhcpcdVersion", &error,
 475                                G_TYPE_INVALID,
 476                                G_TYPE_STRING, &version, G_TYPE_INVALID))
 477                 error_exit(_("GetDhcpcdVersion"), error);
 478         g_message(_("Connected to %s-%s"), "dhcpcd", version);
 479         g_free(version);
 480         dhcpcd_get_interfaces();
 481 }
 482
 483 static void
 484 dhcpcd_status(_unused DBusGProxy *proxy, const char *status, _unused void *data)
 485 {
 486         check_status(status);
 487 }
 488
 489 int
 490 main(int argc, char *argv[])
 491 {
 492         DBusGConnection *bus;
 493         GError *error = NULL;
 494         char *version = NULL;
 495         GType otype;
 496         int tries = 5;
 497
 498
 499         setlocale(LC_ALL, "");
 500         bindtextdomain(PACKAGE, NULL);
 501         bind_textdomain_codeset(PACKAGE, "UTF-8");
 502         textdomain(PACKAGE);
 503
 504         gtk_init(&argc, &argv);
 505         g_set_application_name("dhcpcd Monitor");
 506         status_icon = gtk_status_icon_new_from_icon_name("network-offline");
 507         if (status_icon == NULL)
 508                 status_icon = gtk_status_icon_new_from_stock(GTK_STOCK_DISCONNECT);
 509
 510         gtk_status_icon_set_tooltip(status_icon, _("Connecting to dhcpcd ..."));
 511         gtk_status_icon_set_visible(status_icon, TRUE);
 512
 513         notify_init(PACKAGE);
 514
 515         g_message(_("Connecting to dbus ..."));
 516         bus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);
 517         if (bus == NULL || error != NULL)
 518                 error_exit(_("Could not connect to system bus"), error);
 519         dbus = dbus_g_proxy_new_for_name(bus,
 520                                               DHCPCD_SERVICE,
 521                                               DHCPCD_PATH,
 522                                               DHCPCD_SERVICE);
 523
 524         g_message(_("Connecting to dhcpcd-dbus ..."));
 525         while (--tries > 0) {
 526                 g_clear_error(&error);
 527                 if (dbus_g_proxy_call_with_timeout(dbus,
 528                                                    "GetVersion",
 529                                                    500,
 530                                                    &error,
 531                                                    G_TYPE_INVALID,
 532                                                    G_TYPE_STRING,
 533                                                    &version,
 534                                                    G_TYPE_INVALID))
 535                         break;
 536         }
 537         if (tries == 0)
 538                 error_exit(_("GetVersion"), error);
 539         g_message(_("Connected to %s-%s"), "dhcpcd-dbus", version);
 540         g_free(version);
 541
 542         gtk_status_icon_set_tooltip(status_icon, _("Triggering dhcpcd ..."));
 543         online = FALSE;
 544         menu_init(status_icon);
 545
 546         if (!dbus_g_proxy_call(dbus, "GetStatus", &error,
 547                                G_TYPE_INVALID,
 548                                G_TYPE_STRING, &version, G_TYPE_INVALID))
 549                 error_exit(_("GetStatus"), error);
 550         check_status(version);
 551         g_free(version);
 552
 553         otype = dbus_g_type_get_map("GHashTable", G_TYPE_STRING, G_TYPE_VALUE);
 554         dbus_g_proxy_add_signal(dbus, "Event",
 555                                 otype, G_TYPE_INVALID);
 556         dbus_g_proxy_connect_signal(dbus, "Event",
 557                                     G_CALLBACK(dhcpcd_event),
 558                                     NULL, NULL);
 559         dbus_g_proxy_add_signal(dbus, "StatusChanged",
 560                                 G_TYPE_STRING, G_TYPE_INVALID);
 561         dbus_g_proxy_connect_signal(dbus, "StatusChanged",
 562                                     G_CALLBACK(dhcpcd_status),
 563                                     NULL, NULL);
 564
 565         gtk_main();
 566         return 0;
 567 }