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

   1 /*
   2  * dhcpcd-gtk
   3  * Copyright 2009-2014 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 #include <errno.h>
  28 #include <locale.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31
  32 #ifdef NOTIFY
  33 #  include <libnotify/notify.h>
  34 #ifndef NOTIFY_CHECK_VERSION
  35 #  define NOTIFY_CHECK_VERSION(a,b,c) 0
  36 #endif
  37 static NotifyNotification *nn;
  38 #endif
  39
  40 #include "config.h"
  41 #include "dhcpcd.h"
  42 #include "dhcpcd-gtk.h"
  43
  44 static GtkStatusIcon *status_icon;
  45 static guint ani_timer;
  46 static int ani_counter;
  47 static bool online;
  48 static bool carrier;
  49
  50 struct watch {
  51         gpointer ref;
  52         int fd;
  53         guint eventid;
  54         GIOChannel *gio;
  55         struct watch *next;
  56 };
  57 static struct watch *watches;
  58
  59 WI_SCAN *wi_scans;
  60
  61 static gboolean dhcpcd_try_open(gpointer data);
  62 static gboolean dhcpcd_wpa_try_open(gpointer data);
  63
  64 WI_SCAN *
  65 wi_scan_find(DHCPCD_WI_SCAN *scan)
  66 {
  67         WI_SCAN *w;
  68         DHCPCD_WI_SCAN *dw;
  69
  70         for (w = wi_scans; w; w = w->next) {
  71                 for (dw = w->scans; dw; dw = dw->next)
  72                         if (dw == scan)
  73                                 break;
  74                 if (dw)
  75                         return w;
  76         }
  77         return NULL;
  78 }
  79
  80 static gboolean
  81 animate_carrier(_unused gpointer data)
  82 {
  83         const char *icon;
  84
  85         if (ani_timer == 0)
  86                 return false;
  87
  88         switch(ani_counter++) {
  89         case 0:
  90                 icon = "network-transmit";
  91                 break;
  92         case 1:
  93                 icon = "network-receive";
  94                 break;
  95         default:
  96                 icon = "network-idle";
  97                 ani_counter = 0;
  98                 break;
  99         }
 100         gtk_status_icon_set_from_icon_name(status_icon, icon);
 101         return true;
 102 }
 103
 104 static gboolean
 105 animate_online(_unused gpointer data)
 106 {
 107         const char *icon;
 108
 109         if (ani_timer == 0)
 110                 return false;
 111
 112         if (ani_counter++ > 6) {
 113                 ani_timer = 0;
 114                 ani_counter = 0;
 115                 return false;
 116         }
 117
 118         if (ani_counter % 2 == 0)
 119                 icon = "network-idle";
 120         else
 121                 icon = "network-transmit-receive";
 122         gtk_status_icon_set_from_icon_name(status_icon, icon);
 123         return true;
 124 }
 125
 126 static void
 127 update_online(DHCPCD_CONNECTION *con, bool showif)
 128 {
 129         bool ison, iscarrier;
 130         char *msg, *msgs, *tmp;
 131         DHCPCD_IF *ifs, *i;
 132
 133         ison = iscarrier = false;
 134         msgs = NULL;
 135         ifs = dhcpcd_interfaces(con);
 136         for (i = ifs; i; i = i->next) {
 137                 if (g_strcmp0(i->type, "link") == 0) {
 138                         if (i->up)
 139                                 iscarrier = true;
 140                 } else {
 141                         if (i->up)
 142                                 ison = true;
 143                 }
 144                 msg = dhcpcd_if_message(i, NULL);
 145                 if (msg) {
 146                         if (showif)
 147                                 g_message("%s", msg);
 148                         if (msgs) {
 149                                 tmp = g_strconcat(msgs, "\n", msg, NULL);
 150                                 g_free(msgs);
 151                                 g_free(msg);
 152                                 msgs = tmp;
 153                         } else
 154                                 msgs = msg;
 155                 } else if (showif)
 156                         g_message("%s: %s", i->ifname, i->reason);
 157         }
 158
 159         if (online != ison || carrier != iscarrier) {
 160                 online = ison;
 161                 if (ani_timer != 0) {
 162                         g_source_remove(ani_timer);
 163                         ani_timer = 0;
 164                         ani_counter = 0;
 165                 }
 166                 if (ison) {
 167                         animate_online(NULL);
 168                         ani_timer = g_timeout_add(300, animate_online, NULL);
 169                 } else if (iscarrier) {
 170                         animate_carrier(NULL);
 171                         ani_timer = g_timeout_add(500, animate_carrier, NULL);
 172                 } else {
 173                         gtk_status_icon_set_from_icon_name(status_icon,
 174                             "network-offline");
 175                 }
 176         }
 177         gtk_status_icon_set_tooltip_text(status_icon, msgs);
 178         g_free(msgs);
 179 }
 180
 181 void
 182 notify_close(void)
 183 {
 184 #ifdef NOTIFY
 185         if (nn != NULL)
 186                 notify_notification_close(nn, NULL);
 187 #endif
 188 }
 189
 190 #ifdef NOTIFY
 191 static char *notify_last_msg;
 192
 193 static void
 194 notify_closed(void)
 195 {
 196         nn = NULL;
 197 }
 198
 199 static void
 200 notify(const char *title, const char *msg, const char *icon)
 201 {
 202
 203         if (msg == NULL)
 204                 return;
 205         /* Don't spam the same message */
 206         if (notify_last_msg) {
 207                 if (notify_last_msg && strcmp(msg, notify_last_msg) == 0)
 208                         return;
 209                 g_free(notify_last_msg);
 210         }
 211         notify_last_msg = g_strdup(msg);
 212
 213         if (nn != NULL)
 214                 notify_notification_close(nn, NULL);
 215
 216 #if NOTIFY_CHECK_VERSION(0,7,0)
 217         nn = notify_notification_new(title, msg, icon);
 218         notify_notification_set_hint(nn, "transient",
 219             g_variant_new_boolean(TRUE));
 220 #else
 221         if (gtk_status_icon_get_visible(status_icon))
 222                 nn = notify_notification_new_with_status_icon(title,
 223                     msg, icon, status_icon);
 224         else
 225                 nn = notify_notification_new(title, msg, icon, NULL);
 226 #endif
 227
 228         notify_notification_set_timeout(nn, 5000);
 229         g_signal_connect(nn, "closed", G_CALLBACK(notify_closed), NULL);
 230         notify_notification_show(nn, NULL);
 231 }
 232 #else
 233 #  define notify(a, b, c)
 234 #endif
 235
 236 static struct watch *
 237 dhcpcd_findwatch(int fd, gpointer data, struct watch **last)
 238 {
 239         struct watch *w;
 240
 241         if (last)
 242                 *last = NULL;
 243         for (w = watches; w; w = w->next) {
 244                 if (w->fd == fd || w->ref == data)
 245                         return w;
 246                 if (last)
 247                         *last = w;
 248         }
 249         return NULL;
 250 }
 251
 252 static void
 253 dhcpcd_unwatch(int fd, gpointer data)
 254 {
 255         struct watch *w, *l;
 256
 257         if ((w = dhcpcd_findwatch(fd, data, &l))) {
 258                 if (l)
 259                         l->next = w->next;
 260                 else
 261                         watches = w->next;
 262                 g_source_remove(w->eventid);
 263                 g_io_channel_unref(w->gio);
 264                 g_free(w);
 265         }
 266 }
 267
 268 static gboolean
 269 dhcpcd_watch(int fd,
 270     gboolean (*cb)(GIOChannel *, GIOCondition, gpointer),
 271     gpointer data)
 272 {
 273         struct watch *w, *l;
 274         GIOChannel *gio;
 275         GIOCondition flags;
 276         guint eventid;
 277
 278         /* Sanity */
 279         if ((w = dhcpcd_findwatch(fd, data, &l))) {
 280                 if (w->fd == fd)
 281                         return TRUE;
 282                 if (l)
 283                         l->next = w->next;
 284                 else
 285                         watches = w->next;
 286                 g_source_remove(w->eventid);
 287                 g_io_channel_unref(w->gio);
 288                 g_free(w);
 289         }
 290
 291         gio = g_io_channel_unix_new(fd);
 292         if (gio == NULL) {
 293                 g_warning(_("Error creating new GIO Channel\n"));
 294                 return FALSE;
 295         }
 296         flags = G_IO_IN | G_IO_ERR | G_IO_HUP;
 297         if ((eventid = g_io_add_watch(gio, flags, cb, data)) == 0) {
 298                 g_warning(_("Error creating watch\n"));
 299                 g_io_channel_unref(gio);
 300                 return FALSE;
 301         }
 302
 303         w = g_try_malloc(sizeof(*w));
 304         if (w == NULL) {
 305                 g_warning(_("g_try_malloc\n"));
 306                 g_source_remove(eventid);
 307                 g_io_channel_unref(gio);
 308                 return FALSE;
 309         }
 310
 311         w->ref = data;
 312         w->fd = fd;
 313         w->eventid = eventid;
 314         w->gio = gio;
 315         w->next = watches;
 316         watches = w;
 317
 318         return TRUE;
 319 }
 320
 321 static void
 322 dhcpcd_status_cb(DHCPCD_CONNECTION *con, const char *status, _unused void *data)
 323 {
 324         static char *last = NULL;
 325         const char *msg;
 326         bool refresh;
 327         WI_SCAN *w;
 328
 329         g_message("Status changed to %s", status);
 330         if (g_strcmp0(status, "down") == 0) {
 331                 msg = N_(last ?
 332                     "Connection to dhcpcd lost" : "dhcpcd not running");
 333                 if (ani_timer != 0) {
 334                         g_source_remove(ani_timer);
 335                         ani_timer = 0;
 336                         ani_counter = 0;
 337                 }
 338                 gtk_status_icon_set_from_icon_name(status_icon,
 339                     "network-offline");
 340                 gtk_status_icon_set_tooltip_text(status_icon, msg);
 341                 notify(_("No network"), msg, "network-offline");
 342                 dhcpcd_prefs_abort();
 343                 while (wi_scans) {
 344                         w = wi_scans->next;
 345                         dhcpcd_wi_scans_free(wi_scans->scans);
 346                         g_free(wi_scans);
 347                         wi_scans = w;
 348                 }
 349                 dhcpcd_unwatch(-1, con);
 350                 g_timeout_add(DHCPCD_RETRYOPEN, dhcpcd_try_open, con);
 351         } else {
 352                 if ((last == NULL || g_strcmp0(last, "down") == 0)) {
 353                         g_message(_("Connected to %s-%s"), "dhcpcd",
 354                             dhcpcd_version(con));
 355                         refresh = true;
 356                 } else
 357                         refresh = g_strcmp0(last, "opened") ? false : true;
 358                 update_online(con, refresh);
 359         }
 360
 361         g_free(last);
 362         last = g_strdup(status);
 363 }
 364
 365 static gboolean
 366 dhcpcd_cb(_unused GIOChannel *gio, _unused GIOCondition c, gpointer data)
 367 {
 368         DHCPCD_CONNECTION *con;
 369
 370         con = (DHCPCD_CONNECTION *)data;
 371         if (dhcpcd_get_fd(con) == -1) {
 372                 g_warning(_("dhcpcd connection lost"));
 373                 dhcpcd_unwatch(-1, con);
 374                 g_timeout_add(DHCPCD_RETRYOPEN, dhcpcd_try_open, con);
 375                 return FALSE;
 376         }
 377
 378         dhcpcd_dispatch(con);
 379         return TRUE;
 380 }
 381
 382 static gboolean
 383 dhcpcd_try_open(gpointer data)
 384 {
 385         DHCPCD_CONNECTION *con;
 386         int fd;
 387         static int last_error;
 388
 389         con = (DHCPCD_CONNECTION *)data;
 390         fd = dhcpcd_open(con);
 391         if (fd == -1) {
 392                 if (errno != last_error) {
 393                         g_critical("dhcpcd_open: %s", strerror(errno));
 394                         last_error = errno;
 395                 }
 396                 return TRUE;
 397         }
 398
 399         if (!dhcpcd_watch(fd, dhcpcd_cb, con)) {
 400                 dhcpcd_close(con);
 401                 return TRUE;
 402         }
 403
 404         /* Start listening to WPA events */
 405         dhcpcd_wpa_start(con);
 406
 407         return FALSE;
 408 }
 409
 410 static void
 411 dhcpcd_if_cb(DHCPCD_IF *i, _unused void *data)
 412 {
 413         DHCPCD_CONNECTION *con;
 414         char *msg;
 415         const char *icon;
 416         bool new_msg;
 417
 418         /* Update the tooltip with connection information */
 419         con = dhcpcd_if_connection(i);
 420         update_online(con, false);
 421
 422         /* We should ignore renew and stop so we don't annoy the user */
 423         if (g_strcmp0(i->reason, "RENEW") == 0 ||
 424             g_strcmp0(i->reason, "STOP") == 0 ||
 425             g_strcmp0(i->reason, "STOPPED") == 0)
 426                 return;
 427
 428         msg = dhcpcd_if_message(i, &new_msg);
 429         if (msg) {
 430                 g_message("%s", msg);
 431                 if (new_msg) {
 432                         if (i->up)
 433                                 icon = "network-transmit-receive";
 434                         //else
 435                         //      icon = "network-transmit";
 436                         if (!i->up)
 437                                 icon = "network-offline";
 438                         notify(_("Network event"), msg, icon);
 439                 }
 440                 g_free(msg);
 441         }
 442 }
 443
 444 static gboolean
 445 dhcpcd_wpa_cb(_unused GIOChannel *gio, _unused GIOCondition c,
 446     gpointer data)
 447 {
 448         DHCPCD_WPA *wpa;
 449         DHCPCD_IF *i;
 450
 451         wpa = (DHCPCD_WPA *)data;
 452         if (dhcpcd_wpa_get_fd(wpa) == -1) {
 453                 dhcpcd_unwatch(-1, wpa);
 454
 455                 /* If the interface hasn't left, try re-opening */
 456                 i = dhcpcd_wpa_if(wpa);
 457                 if (i == NULL ||
 458                     g_strcmp0(i->reason, "DEPARTED") == 0 ||
 459                     g_strcmp0(i->reason, "STOPPED") == 0)
 460                         return TRUE;
 461                 g_warning(_("dhcpcd WPA connection lost: %s"), i->ifname);
 462                 g_timeout_add(DHCPCD_RETRYOPEN, dhcpcd_wpa_try_open, wpa);
 463                 return FALSE;
 464         }
 465
 466         dhcpcd_wpa_dispatch(wpa);
 467         return TRUE;
 468 }
 469
 470 static gboolean
 471 dhcpcd_wpa_try_open(gpointer data)
 472 {
 473         DHCPCD_WPA *wpa;
 474         int fd;
 475         static int last_error;
 476
 477         wpa = (DHCPCD_WPA *)data;
 478         fd = dhcpcd_wpa_open(wpa);
 479         if (fd == -1) {
 480                 if (errno != last_error)
 481                         g_critical("dhcpcd_wpa_open: %s", strerror(errno));
 482                 last_error = errno;
 483                 return TRUE;
 484         }
 485
 486         if (!dhcpcd_watch(fd, dhcpcd_wpa_cb, wpa)) {
 487                 dhcpcd_wpa_close(wpa);
 488                 return TRUE;
 489         }
 490
 491         return FALSE;
 492 }
 493
 494 static void
 495 dhcpcd_wpa_scan_cb(DHCPCD_WPA *wpa, _unused void *data)
 496 {
 497         DHCPCD_IF *i;
 498         WI_SCAN *w;
 499         DHCPCD_WI_SCAN *scans, *s1, *s2;
 500         char *txt, *t;
 501         int lerrno, fd;
 502         const char *msg;
 503
 504         /* This could be a new WPA so watch it */
 505         fd = dhcpcd_wpa_get_fd(wpa);
 506         if (fd == -1) {
 507                 g_critical("No fd for WPA %p", wpa);
 508                 dhcpcd_unwatch(-1, wpa);
 509                 return;
 510         }
 511         dhcpcd_watch(fd, dhcpcd_wpa_cb, wpa);
 512
 513         i = dhcpcd_wpa_if(wpa);
 514         if (i == NULL) {
 515                 g_critical("No interface for WPA %p", wpa);
 516                 return;
 517         }
 518         g_message(_("%s: Received scan results"), i->ifname);
 519         lerrno = errno;
 520         errno = 0;
 521         scans = dhcpcd_wi_scans(i);
 522         if (scans == NULL && errno)
 523                 g_warning("%s: %s", i->ifname, strerror(errno));
 524         errno = lerrno;
 525         for (w = wi_scans; w; w = w->next)
 526                 if (w->interface == i)
 527                         break;
 528         if (w == NULL) {
 529                 w = g_malloc(sizeof(*w));
 530                 w->interface = i;
 531                 w->next = wi_scans;
 532                 wi_scans = w;
 533         } else {
 534                 txt = NULL;
 535                 msg = N_("New Access Point");
 536                 for (s1 = scans; s1; s1 = s1->next) {
 537                         for (s2 = w->scans; s2; s2 = s2->next)
 538                                 if (g_strcmp0(s1->ssid, s2->ssid) == 0)
 539                                         break;
 540                         if (s2 == NULL) {
 541                                 if (txt == NULL)
 542                                         txt = g_strdup(s1->ssid);
 543                                 else {
 544                                         msg = N_("New Access Points");
 545                                         t = g_strconcat(txt, "\n",
 546                                             s1->ssid, NULL);
 547                                         g_free(txt);
 548                                         txt = t;
 549                                 }
 550                         }
 551                 }
 552                 if (txt) {
 553                         notify(msg, txt, "network-wireless");
 554                         g_free(txt);
 555                 }
 556                 menu_update_scans(w->interface, scans);
 557                 dhcpcd_wi_scans_free(w->scans);
 558         }
 559         w->scans = scans;
 560 }
 561
 562 int
 563 main(int argc, char *argv[])
 564 {
 565         DHCPCD_CONNECTION *con;
 566
 567         setlocale(LC_ALL, "");
 568         bindtextdomain(PACKAGE, NULL);
 569         bind_textdomain_codeset(PACKAGE, "UTF-8");
 570         textdomain(PACKAGE);
 571
 572         gtk_init(&argc, &argv);
 573         g_set_application_name("Network Configurator");
 574         gtk_icon_theme_append_search_path(gtk_icon_theme_get_default(),
 575             ICONDIR);
 576         status_icon = gtk_status_icon_new_from_icon_name("network-offline");
 577
 578         gtk_status_icon_set_tooltip_text(status_icon,
 579             _("Connecting to dhcpcd ..."));
 580         gtk_status_icon_set_visible(status_icon, true);
 581         online = false;
 582 #ifdef NOTIFY
 583         notify_init(PACKAGE);
 584 #endif
 585
 586         g_message(_("Connecting ..."));
 587         con = dhcpcd_new();
 588         if (con ==  NULL) {
 589                 g_critical("libdhcpcd: %s", strerror(errno));
 590                 exit(EXIT_FAILURE);
 591         }
 592         dhcpcd_set_status_callback(con, dhcpcd_status_cb, NULL);
 593         dhcpcd_set_if_callback(con, dhcpcd_if_cb, NULL);
 594         dhcpcd_wpa_set_scan_callback(con, dhcpcd_wpa_scan_cb, NULL);
 595         //dhcpcd_wpa_set_status_callback(con, dhcpcd_wpa_status_cb, NULL);
 596         if (dhcpcd_try_open(con))
 597                 g_timeout_add(DHCPCD_RETRYOPEN, dhcpcd_try_open, con);
 598
 599         menu_init(status_icon, con);
 600
 601         gtk_main();
 602         dhcpcd_close(con);
 603         dhcpcd_free(con);
 604         return 0;
 605 }