droute/droute.c

   1 /*
   2  * AT-SPI - Assistive Technology Service Provider Interface
   3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
   4  *
   5  * Copyright 2008 Novell, Inc.
   6  * Copyright 2008 Codethink Ltd.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <stdio.h>
  27
  28 #include "droute.h"
  29 #include "droute-pairhash.h"
  30
  31 #define CHUNKS_DEFAULT (512)
  32
  33 #define oom() g_error ("D-Bus out of memory, this message will fail anyway")
  34
  35 #if defined DROUTE_DEBUG
  36     #define _DROUTE_DEBUG(format, args...) g_print (format , ## args)
  37 #else
  38     #define _DROUTE_DEBUG(format, args...)
  39 #endif
  40
  41 struct _DRouteContext
  42 {
  43     GPtrArray            *registered_paths;
  44
  45     gchar                *introspect_string;
  46 };
  47
  48 struct _DRoutePath
  49 {
  50     DRouteContext        *cnx;
  51     gchar *path;
  52     gboolean prefix;
  53     GStringChunk         *chunks;
  54     GPtrArray            *interfaces;
  55     GPtrArray            *introspection;
  56     GHashTable           *methods;
  57     GHashTable           *properties;
  58
  59     DRouteIntrospectChildrenFunction introspect_children_cb;
  60     void *introspect_children_data;
  61     void                   *user_data;
  62     DRouteGetDatumFunction  get_datum;
  63 };
  64
  65 /*---------------------------------------------------------------------------*/
  66
  67 typedef struct PropertyPair
  68 {
  69     DRoutePropertyFunction get;
  70     DRoutePropertyFunction set;
  71 } PropertyPair;
  72
  73 /*---------------------------------------------------------------------------*/
  74
  75 static DBusHandlerResult
  76 handle_message (DBusConnection *bus, DBusMessage *message, void *user_data);
  77
  78 static DBusMessage *
  79 droute_object_does_not_exist_error (DBusMessage *message);
  80
  81 /*---------------------------------------------------------------------------*/
  82
  83 static DRoutePath *
  84 path_new (DRouteContext *cnx,
  85           const char *path,
  86           gboolean prefix,
  87           void    *user_data,
  88           DRouteIntrospectChildrenFunction introspect_children_cb,
  89           void *introspect_children_data,
  90           DRouteGetDatumFunction get_datum)
  91 {
  92     DRoutePath *new_path;
  93
  94     new_path = g_new0 (DRoutePath, 1);
  95     new_path->cnx = cnx;
  96     new_path->path = g_strdup (path);
  97     new_path->prefix = prefix;
  98     new_path->chunks = g_string_chunk_new (CHUNKS_DEFAULT);
  99     new_path->interfaces = g_ptr_array_new ();
 100     new_path->introspection = g_ptr_array_new ();
 101
 102     new_path->methods = g_hash_table_new_full ((GHashFunc)str_pair_hash,
 103                                                str_pair_equal,
 104                                                g_free,
 105                                                NULL);
 106
 107     new_path->properties = g_hash_table_new_full ((GHashFunc)str_pair_hash,
 108                                                   str_pair_equal,
 109                                                   g_free,
 110                                                   NULL);
 111
 112     new_path->introspect_children_cb = introspect_children_cb;
 113     new_path->introspect_children_data = introspect_children_data;
 114     new_path->user_data = user_data;
 115     new_path->get_datum = get_datum;
 116
 117     return new_path;
 118 }
 119
 120 static void
 121 path_free (DRoutePath *path, gpointer user_data)
 122 {
 123     g_free (path->path);
 124     g_string_chunk_free  (path->chunks);
 125     g_ptr_array_free     (path->interfaces, TRUE);
 126     g_ptr_array_free     (path->introspection, FALSE);
 127     g_hash_table_destroy (path->methods);
 128     g_hash_table_destroy (path->properties);
 129 }
 130
 131 static void *
 132 path_get_datum (DRoutePath *path, const gchar *pathstr)
 133 {
 134     if (path->get_datum != NULL)
 135         return (path->get_datum) (pathstr, path->user_data);
 136     else
 137         return path->user_data;
 138 }
 139
 140 /*---------------------------------------------------------------------------*/
 141
 142 DRouteContext *
 143 droute_new ()
 144 {
 145     DRouteContext *cnx;
 146
 147     cnx = g_new0 (DRouteContext, 1);
 148     cnx->registered_paths = g_ptr_array_new ();
 149
 150     return cnx;
 151 }
 152
 153 void
 154 droute_free (DRouteContext *cnx)
 155 {
 156     g_ptr_array_foreach (cnx->registered_paths, (GFunc) path_free, NULL);
 157     g_free (cnx);
 158 }
 159
 160 /*---------------------------------------------------------------------------*/
 161
 162 /*---------------------------------------------------------------------------*/
 163
 164 static DBusObjectPathVTable droute_vtable =
 165 {
 166   NULL,
 167   &handle_message,
 168   NULL, NULL, NULL, NULL
 169 };
 170
 171 DRoutePath *
 172 droute_add_one (DRouteContext *cnx,
 173                 const char    *path,
 174                 const void    *data)
 175 {
 176     DRoutePath *new_path;
 177
 178     new_path = path_new (cnx, path, FALSE, (void *)data, NULL, NULL, NULL);
 179
 180     g_ptr_array_add (cnx->registered_paths, new_path);
 181     return new_path;
 182 }
 183
 184 DRoutePath *
 185 droute_add_many (DRouteContext *cnx,
 186                  const char    *path,
 187                  const void    *data,
 188                  DRouteIntrospectChildrenFunction introspect_children_cb,
 189                  void *introspect_children_data,
 190                  const DRouteGetDatumFunction get_datum)
 191 {
 192     DRoutePath *new_path;
 193
 194     new_path = path_new (cnx, path, TRUE, (void *) data,
 195                          introspect_children_cb, introspect_children_data,
 196                          get_datum);
 197
 198     g_ptr_array_add (cnx->registered_paths, new_path);
 199     return new_path;
 200 }
 201
 202 /*---------------------------------------------------------------------------*/
 203
 204 void
 205 droute_path_add_interface(DRoutePath *path,
 206                           const char *name,
 207                           const char *introspect,
 208                           const DRouteMethod   *methods,
 209                           const DRouteProperty *properties)
 210 {
 211     gchar *itf;
 212
 213     g_return_if_fail (name != NULL);
 214
 215     itf = g_string_chunk_insert (path->chunks, name);
 216     g_ptr_array_add (path->interfaces, itf);
 217     g_ptr_array_add (path->introspection, (gpointer) introspect);
 218
 219     for (; methods != NULL && methods->name != NULL; methods++)
 220       {
 221         gchar *meth;
 222
 223         meth = g_string_chunk_insert (path->chunks, methods->name);
 224         g_hash_table_insert (path->methods, str_pair_new (itf, meth), methods->func);
 225       }
 226
 227     for (; properties != NULL && properties->name != NULL; properties++)
 228       {
 229         gchar *prop;
 230         PropertyPair *pair;
 231
 232         prop = g_string_chunk_insert (path->chunks, properties->name);
 233         pair = g_new (PropertyPair, 1);
 234         pair->get = properties->get;
 235         pair->set = properties->set;
 236         g_hash_table_insert (path->properties, str_pair_new (itf, prop), pair);
 237       }
 238 }
 239
 240 /*---------------------------------------------------------------------------*/
 241
 242 /* The data structures don't support an efficient implementation of GetAll
 243  * and I don't really care.
 244  */
 245 static DBusMessage *
 246 impl_prop_GetAll (DBusMessage *message,
 247                   DRoutePath  *path,
 248                   const char  *pathstr)
 249 {
 250     DBusMessageIter iter, iter_dict, iter_dict_entry;
 251     DBusMessage *reply;
 252     DBusError error;
 253     GHashTableIter prop_iter;
 254
 255     StrPair *key;
 256     PropertyPair *value;
 257     gchar *iface;
 258
 259     void  *datum = path_get_datum (path, pathstr);
 260     if (!datum)
 261         return droute_object_does_not_exist_error (message);
 262
 263     dbus_error_init (&error);
 264     if (!dbus_message_get_args
 265                 (message, &error, DBUS_TYPE_STRING, &iface, DBUS_TYPE_INVALID))
 266         return dbus_message_new_error (message, DBUS_ERROR_FAILED, error.message);
 267
 268     reply = dbus_message_new_method_return (message);
 269     if (!reply)
 270         oom ();
 271
 272     dbus_message_iter_init_append (reply, &iter);
 273     if (!dbus_message_iter_open_container
 274                 (&iter, DBUS_TYPE_ARRAY, "{sv}", &iter_dict))
 275         oom ();
 276
 277     g_hash_table_iter_init (&prop_iter, path->properties);
 278     while (g_hash_table_iter_next (&prop_iter, (gpointer*)&key, (gpointer*)&value))
 279       {
 280         if (!g_strcmp0 (key->one, iface))
 281          {
 282            if (!value->get)
 283               continue;
 284            if (!dbus_message_iter_open_container
 285                         (&iter_dict, DBUS_TYPE_DICT_ENTRY, NULL, &iter_dict_entry))
 286               oom ();
 287            dbus_message_iter_append_basic (&iter_dict_entry, DBUS_TYPE_STRING,
 288                                            &key->two);
 289            (value->get) (&iter_dict_entry, datum);
 290            if (!dbus_message_iter_close_container (&iter_dict, &iter_dict_entry))
 291                oom ();
 292          }
 293       }
 294
 295     if (!dbus_message_iter_close_container (&iter, &iter_dict))
 296         oom ();
 297     return reply;
 298 }
 299
 300 static DBusMessage *
 301 impl_prop_GetSet (DBusMessage *message,
 302                   DRoutePath  *path,
 303                   const char  *pathstr,
 304                   gboolean     get)
 305 {
 306     DBusMessage *reply = NULL;
 307     DBusError error;
 308
 309     StrPair pair;
 310     PropertyPair *prop_funcs = NULL;
 311
 312     void *datum;
 313
 314     dbus_error_init (&error);
 315     if (!dbus_message_get_args (message,
 316                                 &error,
 317                                 DBUS_TYPE_STRING,
 318                                 &(pair.one),
 319                                 DBUS_TYPE_STRING,
 320                                 &(pair.two),
 321                                 DBUS_TYPE_INVALID))
 322         return dbus_message_new_error (message, DBUS_ERROR_FAILED, error.message);
 323
 324     _DROUTE_DEBUG ("DRoute (handle prop): %s|%s on %s\n", pair.one, pair.two, pathstr);
 325
 326     prop_funcs = (PropertyPair *) g_hash_table_lookup (path->properties, &pair);
 327     if (!prop_funcs)
 328 #ifdef DBUS_ERROR_UNKNOWN_PROPERTY
 329         return dbus_message_new_error (message, DBUS_ERROR_UNKNOWN_PROPERTY, "Property unavailable");
 330 #else
 331         return dbus_message_new_error (message, DBUS_ERROR_FAILED, "Property unavailable");
 332 #endif
 333
 334     datum = path_get_datum (path, pathstr);
 335     if (!datum)
 336         return droute_object_does_not_exist_error (message);
 337
 338     if (get && prop_funcs->get)
 339       {
 340
 341         DBusMessageIter iter;
 342
 343         _DROUTE_DEBUG ("DRoute (handle prop Get): %s|%s on %s\n", pair.one, pair.two, pathstr);
 344
 345         reply = dbus_message_new_method_return (message);
 346         dbus_message_iter_init_append (reply, &iter);
 347         if (!(prop_funcs->get) (&iter, datum))
 348           {
 349             dbus_message_unref (reply);
 350             reply = dbus_message_new_error (message, DBUS_ERROR_FAILED, "Get failed");
 351           }
 352       }
 353     else if (!get && prop_funcs->set)
 354       {
 355         DBusMessageIter iter;
 356
 357         _DROUTE_DEBUG ("DRoute (handle prop Get): %s|%s on %s\n", pair.one, pair.two, pathstr);
 358
 359         dbus_message_iter_init (message, &iter);
 360         /* Skip the interface and property name */
 361         dbus_message_iter_next(&iter);
 362         dbus_message_iter_next(&iter);
 363         (prop_funcs->set) (&iter, datum);
 364
 365         reply = dbus_message_new_method_return (message);
 366       }
 367 #ifdef DBUS_ERROR_PROPERTY_READ_ONLY
 368     else if (!get)
 369       {
 370         reply = dbus_message_new_error (message, DBUS_ERROR_PROPERTY_READ_ONLY, "Property is read-only");
 371       }
 372 #endif
 373     else
 374       {
 375         reply = dbus_message_new_error (message, DBUS_ERROR_FAILED, "Getter or setter unavailable");
 376       }
 377
 378     return reply;
 379 }
 380
 381 static DBusHandlerResult
 382 handle_dbus (DBusConnection *bus,
 383                    DBusMessage    *message,
 384                    const gchar    *iface,
 385                    const gchar    *member,
 386                    const gchar    *pathstr)
 387 {
 388   static int id = 1;
 389   char *id_str = (char *) g_malloc(40);
 390   DBusMessage *reply;
 391
 392   if (strcmp (iface, DBUS_INTERFACE_DBUS) != 0 ||
 393       strcmp (member, "Hello") != 0)
 394     {
 395       g_free (id_str);
 396       return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 397     }
 398
 399     /* TODO: Fix this hack (we don't handle wrap-around, for instance) */
 400     sprintf (id_str, ":1.%d", id++);
 401     reply = dbus_message_new_method_return (message);
 402     dbus_message_append_args (reply, DBUS_TYPE_STRING, &id_str, DBUS_TYPE_INVALID);
 403     dbus_connection_send (bus, reply, NULL);
 404   dbus_connection_flush (bus);
 405     dbus_message_unref (reply);
 406   g_free (id_str);
 407     return DBUS_HANDLER_RESULT_HANDLED;
 408 }
 409
 410 static DBusHandlerResult
 411 handle_properties (DBusConnection *bus,
 412                    DBusMessage    *message,
 413                    DRoutePath     *path,
 414                    const gchar    *iface,
 415                    const gchar    *member,
 416                    const gchar    *pathstr)
 417 {
 418     DBusMessage *reply = NULL;
 419     DBusHandlerResult result = DBUS_HANDLER_RESULT_HANDLED;
 420
 421     if (!g_strcmp0(member, "GetAll"))
 422        reply = impl_prop_GetAll (message, path, pathstr);
 423     else if (!g_strcmp0 (member, "Get"))
 424        reply = impl_prop_GetSet (message, path, pathstr, TRUE);
 425     else if (!g_strcmp0 (member, "Set"))
 426        reply = impl_prop_GetSet (message, path, pathstr, FALSE);
 427     else
 428        result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 429
 430     if (reply)
 431       {
 432         dbus_connection_send (bus, reply, NULL);
 433         dbus_message_unref (reply);
 434       }
 435
 436     return result;
 437 }
 438
 439 /*---------------------------------------------------------------------------*/
 440
 441 static const char *introspection_header =
 442 "<?xml version=\"1.0\"?>\n";
 443
 444 static const char *introspection_node_element =
 445 "<node name=\"%s\">\n";
 446
 447 static const char *introspection_footer =
 448 "</node>";
 449
 450 static DBusHandlerResult
 451 handle_introspection (DBusConnection *bus,
 452                       DBusMessage    *message,
 453                       DRoutePath     *path,
 454                       const gchar    *iface,
 455                       const gchar    *member,
 456                       const gchar    *pathstr)
 457 {
 458     GString *output;
 459     gchar *final;
 460     gint i;
 461
 462     DBusMessage *reply;
 463
 464     _DROUTE_DEBUG ("DRoute (handle introspection): %s\n", pathstr);
 465
 466     if (g_strcmp0 (member, "Introspect"))
 467         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 468
 469     output = g_string_new(introspection_header);
 470
 471     g_string_append_printf(output, introspection_node_element, pathstr);
 472
 473     if (!path->get_datum || path_get_datum (path, pathstr))
 474       {
 475         for (i=0; i < path->introspection->len; i++)
 476           {
 477             gchar *introspect = (gchar *) g_ptr_array_index (path->introspection, i);
 478             g_string_append (output, introspect);
 479           }
 480       }
 481
 482     if (path->introspect_children_cb)
 483       {
 484         gchar *children = (*path->introspect_children_cb) (pathstr, path->introspect_children_data);
 485         if (children)
 486           {
 487             g_string_append (output, children);
 488             g_free (children);
 489           }
 490       }
 491
 492     g_string_append(output, introspection_footer);
 493     final = g_string_free(output, FALSE);
 494
 495     reply = dbus_message_new_method_return (message);
 496     if (!reply)
 497         oom ();
 498     dbus_message_append_args(reply, DBUS_TYPE_STRING, &final,
 499                              DBUS_TYPE_INVALID);
 500     dbus_connection_send (bus, reply, NULL);
 501
 502     dbus_message_unref (reply);
 503     g_free(final);
 504     return DBUS_HANDLER_RESULT_HANDLED;
 505 }
 506
 507 /*---------------------------------------------------------------------------*/
 508
 509 static DBusHandlerResult
 510 handle_other (DBusConnection *bus,
 511               DBusMessage    *message,
 512               DRoutePath     *path,
 513               const gchar    *iface,
 514               const gchar    *member,
 515               const gchar    *pathstr)
 516 {
 517     gint result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 518
 519     StrPair pair;
 520     DRouteFunction func;
 521     DBusMessage *reply = NULL;
 522
 523     void *datum;
 524
 525     pair.one = iface;
 526     pair.two = member;
 527
 528     _DROUTE_DEBUG ("DRoute (handle other): %s|%s on %s\n", member, iface, pathstr);
 529
 530     func = (DRouteFunction) g_hash_table_lookup (path->methods, &pair);
 531     if (func != NULL)
 532       {
 533         datum = path_get_datum (path, pathstr);
 534         if (!datum)
 535             reply = droute_object_does_not_exist_error (message);
 536         else
 537             reply = (func) (bus, message, datum);
 538
 539         /* All D-Bus method calls must have a reply.
 540          * If one is not provided presume that the caller has already
 541          * sent one.
 542          */
 543         if (reply)
 544           {
 545             dbus_connection_send (bus, reply, NULL);
 546             dbus_message_unref (reply);
 547           }
 548         result = DBUS_HANDLER_RESULT_HANDLED;
 549       }
 550
 551     _DROUTE_DEBUG ("DRoute (handle other) (reply): type %d\n",
 552                    dbus_message_get_type(reply));
 553     return result;
 554 }
 555
 556 /*---------------------------------------------------------------------------*/
 557
 558 static DBusHandlerResult
 559 handle_message (DBusConnection *bus, DBusMessage *message, void *user_data)
 560 {
 561     DRoutePath *path = (DRoutePath *) user_data;
 562     const gchar *iface   = dbus_message_get_interface (message);
 563     const gchar *member  = dbus_message_get_member (message);
 564     const gint   type    = dbus_message_get_type (message);
 565     const gchar *pathstr = dbus_message_get_path (message);
 566
 567     DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 568
 569     _DROUTE_DEBUG ("DRoute (handle message): %s|%s of type %d on %s\n", member, iface, type, pathstr);
 570
 571     /* Check for basic reasons not to handle */
 572     if (type   != DBUS_MESSAGE_TYPE_METHOD_CALL ||
 573         member == NULL ||
 574         iface  == NULL)
 575         return result;
 576
 577     if (!strcmp (pathstr, DBUS_PATH_DBUS))
 578         result = handle_dbus (bus, message, iface, member, pathstr);
 579     else if (!strcmp (iface, "org.freedesktop.DBus.Properties"))
 580         result = handle_properties (bus, message, path, iface, member, pathstr);
 581     else if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
 582         result = handle_introspection (bus, message, path, iface, member, pathstr);
 583     else
 584         result = handle_other (bus, message, path, iface, member, pathstr);
 585 #if 0
 586     if (result == DBUS_HANDLER_RESULT_NOT_YET_HANDLED)
 587         g_print ("DRoute | Unhandled message: %s|%s of type %d on %s\n", member, iface, type, pathstr);
 588 #endif
 589
 590     return result;
 591 }
 592
 593 /*---------------------------------------------------------------------------*/
 594
 595 static DBusMessage *
 596 droute_object_does_not_exist_error (DBusMessage *message)
 597 {
 598     DBusMessage *reply;
 599     gchar       *errmsg;
 600
 601     errmsg= g_strdup_printf (
 602             "Method \"%s\" with signature \"%s\" on interface \"%s\" could not be processed as object %s does not exist\n",
 603             dbus_message_get_member (message),
 604             dbus_message_get_signature (message),
 605             dbus_message_get_interface (message),
 606             dbus_message_get_path (message));
 607 #ifdef DBUS_ERROR_UNKNOWN_OBJECT
 608     reply = dbus_message_new_error (message,
 609                                     DBUS_ERROR_UNKNOWN_OBJECT,
 610                                     errmsg);
 611 #else
 612     reply = dbus_message_new_error (message,
 613                                     DBUS_ERROR_FAILED,
 614                                     errmsg);
 615 #endif
 616     g_free (errmsg);
 617     return reply;
 618 }
 619
 620 /*---------------------------------------------------------------------------*/
 621
 622 DBusMessage *
 623 droute_not_yet_handled_error (DBusMessage *message)
 624 {
 625     DBusMessage *reply;
 626     gchar       *errmsg;
 627
 628     errmsg= g_strdup_printf (
 629             "Method \"%s\" with signature \"%s\" on interface \"%s\" doesn't exist\n",
 630             dbus_message_get_member (message),
 631             dbus_message_get_signature (message),
 632             dbus_message_get_interface (message));
 633     reply = dbus_message_new_error (message,
 634                                     DBUS_ERROR_UNKNOWN_METHOD,
 635                                     errmsg);
 636     g_free (errmsg);
 637     return reply;
 638 }
 639
 640 DBusMessage *
 641 droute_out_of_memory_error (DBusMessage *message)
 642 {
 643     DBusMessage *reply;
 644     gchar       *errmsg;
 645
 646     errmsg= g_strdup_printf (
 647             "Method \"%s\" with signature \"%s\" on interface \"%s\" could not be processed due to lack of memory\n",
 648             dbus_message_get_member (message),
 649             dbus_message_get_signature (message),
 650             dbus_message_get_interface (message));
 651     reply = dbus_message_new_error (message,
 652                                     DBUS_ERROR_NO_MEMORY,
 653                                     errmsg);
 654     g_free (errmsg);
 655     return reply;
 656 }
 657
 658 DBusMessage *
 659 droute_invalid_arguments_error (DBusMessage *message)
 660 {
 661     DBusMessage *reply;
 662     gchar       *errmsg;
 663
 664     errmsg= g_strdup_printf (
 665             "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
 666             dbus_message_get_member (message),
 667             dbus_message_get_signature (message),
 668             dbus_message_get_interface (message));
 669     reply = dbus_message_new_error (message,
 670                                     DBUS_ERROR_INVALID_ARGS,
 671                                     errmsg);
 672     g_free (errmsg);
 673     return reply;
 674 }
 675
 676 void
 677 droute_path_register (DRoutePath *path, DBusConnection *bus)
 678 {
 679     if (path->prefix)
 680       dbus_connection_register_fallback (bus, path->path, &droute_vtable, path);
 681     else
 682       dbus_connection_register_object_path (bus, path->path,
 683                                             &droute_vtable, path);
 684 }
 685
 686 void
 687 droute_path_unregister (DRoutePath *path, DBusConnection *bus)
 688 {
 689   dbus_connection_unregister_object_path (bus, path->path);
 690 }
 691
 692 void
 693 droute_context_register (DRouteContext *cnx, DBusConnection *bus)
 694 {
 695     g_ptr_array_foreach (cnx->registered_paths, (GFunc) droute_path_register,
 696                          bus);
 697 }
 698
 699 void
 700 droute_context_unregister (DRouteContext *cnx, DBusConnection *bus)
 701 {
 702     g_ptr_array_foreach (cnx->registered_paths, (GFunc) droute_path_unregister,
 703                          bus);
 704 }
 705
 706 void
 707 droute_context_deregister (DRouteContext *cnx, DBusConnection *bus)
 708 {
 709     g_ptr_array_foreach (cnx->registered_paths, (GFunc) droute_path_unregister,
 710                          bus);
 711 }
 712
 713 void
 714 droute_intercept_dbus (DBusConnection *bus)
 715 {
 716     dbus_connection_register_object_path (bus, DBUS_PATH_DBUS,
 717                                           &droute_vtable, NULL);
 718 }
 719
 720 void
 721 droute_unintercept_dbus (DBusConnection *bus)
 722 {
 723     dbus_connection_unregister_object_path (bus, DBUS_PATH_DBUS);
 724 }
 725
 726 /*END------------------------------------------------------------------------*/