git.meshlink.io Git - catta/blob - avahi-daemon/dbus-protocol.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of avahi.
   5
   6   avahi is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   avahi is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
  14   Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with avahi; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <sys/ioctl.h>
  28 #include <net/if.h>
  29 #include <errno.h>
  30 #include <unistd.h>
  31 #include <assert.h>
  32 #include <sys/stat.h>
  33 #include <fcntl.h>
  34 #include <stdio.h>
  35 #include <signal.h>
  36
  37 #include <dbus/dbus.h>
  38
  39 #include <avahi-common/dbus.h>
  40 #include <avahi-common/llist.h>
  41 #include <avahi-common/malloc.h>
  42 #include <avahi-common/dbus.h>
  43 #include <avahi-common/dbus-watch-glue.h>
  44 #include <avahi-common/alternative.h>
  45 #include <avahi-common/error.h>
  46 #include <avahi-core/log.h>
  47 #include <avahi-core/core.h>
  48
  49 #include "dbus-protocol.h"
  50 #include "main.h"
  51
  52 typedef struct Server Server;
  53 typedef struct Client Client;
  54 typedef struct EntryGroupInfo EntryGroupInfo;
  55 typedef struct SyncHostNameResolverInfo SyncHostNameResolverInfo;
  56 typedef struct AsyncHostNameResolverInfo AsyncHostNameResolverInfo;
  57 typedef struct SyncAddressResolverInfo SyncAddressResolverInfo;
  58 typedef struct AsyncAddressResolverInfo AsyncAddressResolverInfo;
  59 typedef struct DomainBrowserInfo DomainBrowserInfo;
  60 typedef struct ServiceTypeBrowserInfo ServiceTypeBrowserInfo;
  61 typedef struct ServiceBrowserInfo ServiceBrowserInfo;
  62 typedef struct SyncServiceResolverInfo SyncServiceResolverInfo;
  63 typedef struct AsyncServiceResolverInfo AsyncServiceResolverInfo;
  64
  65 #define MAX_CLIENTS 20
  66 #define MAX_OBJECTS_PER_CLIENT 50
  67 #define MAX_ENTRIES_PER_ENTRY_GROUP 20
  68
  69 /* #define VALGRIND_WORKAROUND */
  70
  71 struct EntryGroupInfo {
  72     unsigned id;
  73     Client *client;
  74     AvahiSEntryGroup *entry_group;
  75     char *path;
  76
  77     int n_entries;
  78
  79     AVAHI_LLIST_FIELDS(EntryGroupInfo, entry_groups);
  80 };
  81
  82 struct SyncHostNameResolverInfo {
  83     Client *client;
  84     AvahiSHostNameResolver *host_name_resolver;
  85     DBusMessage *message;
  86
  87     AVAHI_LLIST_FIELDS(SyncHostNameResolverInfo, sync_host_name_resolvers);
  88 };
  89
  90 struct AsyncHostNameResolverInfo {
  91     unsigned id;
  92     Client *client;
  93     AvahiSHostNameResolver *host_name_resolver;
  94     char *path;
  95
  96     AVAHI_LLIST_FIELDS(AsyncHostNameResolverInfo, async_host_name_resolvers);
  97 };
  98
  99 struct SyncAddressResolverInfo {
 100     Client *client;
 101     AvahiSAddressResolver *address_resolver;
 102     DBusMessage *message;
 103
 104     AVAHI_LLIST_FIELDS(SyncAddressResolverInfo, sync_address_resolvers);
 105 };
 106
 107 struct AsyncAddressResolverInfo {
 108     unsigned id;
 109     Client *client;
 110     AvahiSAddressResolver *address_resolver;
 111     char *path;
 112
 113     AVAHI_LLIST_FIELDS(AsyncAddressResolverInfo, async_address_resolvers);
 114 };
 115
 116 struct DomainBrowserInfo {
 117     unsigned id;
 118     Client *client;
 119     AvahiSDomainBrowser *domain_browser;
 120     char *path;
 121
 122     AVAHI_LLIST_FIELDS(DomainBrowserInfo, domain_browsers);
 123 };
 124
 125 struct ServiceTypeBrowserInfo {
 126     unsigned id;
 127     Client *client;
 128     AvahiSServiceTypeBrowser *service_type_browser;
 129     char *path;
 130
 131     AVAHI_LLIST_FIELDS(ServiceTypeBrowserInfo, service_type_browsers);
 132 };
 133
 134 struct ServiceBrowserInfo {
 135     unsigned id;
 136     Client *client;
 137     AvahiSServiceBrowser *service_browser;
 138     char *path;
 139
 140     AVAHI_LLIST_FIELDS(ServiceBrowserInfo, service_browsers);
 141 };
 142
 143 struct SyncServiceResolverInfo {
 144     Client *client;
 145     AvahiSServiceResolver *service_resolver;
 146     DBusMessage *message;
 147
 148     AVAHI_LLIST_FIELDS(SyncServiceResolverInfo, sync_service_resolvers);
 149 };
 150
 151 struct AsyncServiceResolverInfo {
 152     unsigned id;
 153     Client *client;
 154     AvahiSServiceResolver *service_resolver;
 155     char *path;
 156
 157     AVAHI_LLIST_FIELDS(AsyncServiceResolverInfo, async_service_resolvers);
 158 };
 159
 160 struct Client {
 161     unsigned id;
 162     char *name;
 163     unsigned current_id;
 164     int n_objects;
 165
 166     AVAHI_LLIST_FIELDS(Client, clients);
 167     AVAHI_LLIST_HEAD(EntryGroupInfo, entry_groups);
 168     AVAHI_LLIST_HEAD(SyncHostNameResolverInfo, sync_host_name_resolvers);
 169     AVAHI_LLIST_HEAD(AsyncHostNameResolverInfo, async_host_name_resolvers);
 170     AVAHI_LLIST_HEAD(SyncAddressResolverInfo, sync_address_resolvers);
 171     AVAHI_LLIST_HEAD(AsyncAddressResolverInfo, async_address_resolvers);
 172     AVAHI_LLIST_HEAD(DomainBrowserInfo, domain_browsers);
 173     AVAHI_LLIST_HEAD(ServiceTypeBrowserInfo, service_type_browsers);
 174     AVAHI_LLIST_HEAD(ServiceBrowserInfo, service_browsers);
 175     AVAHI_LLIST_HEAD(SyncServiceResolverInfo, sync_service_resolvers);
 176     AVAHI_LLIST_HEAD(AsyncServiceResolverInfo, async_service_resolvers);
 177 };
 178
 179 struct Server {
 180     DBusConnection *bus;
 181     AVAHI_LLIST_HEAD(Client, clients);
 182     int n_clients;
 183     unsigned current_id;
 184 };
 185
 186 static Server *server = NULL;
 187
 188 static void entry_group_free(EntryGroupInfo *i) {
 189     assert(i);
 190
 191     if (i->entry_group)
 192         avahi_s_entry_group_free(i->entry_group);
 193     dbus_connection_unregister_object_path(server->bus, i->path);
 194     avahi_free(i->path);
 195     AVAHI_LLIST_REMOVE(EntryGroupInfo, entry_groups, i->client->entry_groups, i);
 196
 197     i->client->n_objects--;
 198     assert(i->client->n_objects >= 0);
 199
 200     avahi_free(i);
 201 }
 202
 203 static void sync_host_name_resolver_free(SyncHostNameResolverInfo *i) {
 204     assert(i);
 205
 206     if (i->host_name_resolver)
 207         avahi_s_host_name_resolver_free(i->host_name_resolver);
 208     dbus_message_unref(i->message);
 209     AVAHI_LLIST_REMOVE(SyncHostNameResolverInfo, sync_host_name_resolvers, i->client->sync_host_name_resolvers, i);
 210
 211     i->client->n_objects--;
 212     assert(i->client->n_objects >= 0);
 213
 214     avahi_free(i);
 215 }
 216
 217 static void async_host_name_resolver_free(AsyncHostNameResolverInfo *i) {
 218     assert(i);
 219
 220     if (i->host_name_resolver)
 221         avahi_s_host_name_resolver_free(i->host_name_resolver);
 222     dbus_connection_unregister_object_path(server->bus, i->path);
 223     AVAHI_LLIST_REMOVE(AsyncHostNameResolverInfo, async_host_name_resolvers, i->client->async_host_name_resolvers, i);
 224
 225     i->client->n_objects--;
 226     assert(i->client->n_objects >= 0);
 227
 228     avahi_free(i);
 229 }
 230
 231 static void sync_address_resolver_free(SyncAddressResolverInfo *i) {
 232     assert(i);
 233
 234     if (i->address_resolver)
 235         avahi_s_address_resolver_free(i->address_resolver);
 236     dbus_message_unref(i->message);
 237     AVAHI_LLIST_REMOVE(SyncAddressResolverInfo, sync_address_resolvers, i->client->sync_address_resolvers, i);
 238
 239     i->client->n_objects--;
 240     assert(i->client->n_objects >= 0);
 241
 242     avahi_free(i);
 243 }
 244
 245 static void async_address_resolver_free(AsyncAddressResolverInfo *i) {
 246     assert(i);
 247
 248     if (i->address_resolver)
 249         avahi_s_address_resolver_free(i->address_resolver);
 250     dbus_connection_unregister_object_path(server->bus, i->path);
 251     AVAHI_LLIST_REMOVE(AsyncAddressResolverInfo, async_address_resolvers, i->client->async_address_resolvers, i);
 252
 253     i->client->n_objects--;
 254     assert(i->client->n_objects >= 0);
 255
 256     avahi_free(i);
 257 }
 258
 259 static void domain_browser_free(DomainBrowserInfo *i) {
 260     assert(i);
 261
 262     if (i->domain_browser)
 263         avahi_s_domain_browser_free(i->domain_browser);
 264     dbus_connection_unregister_object_path(server->bus, i->path);
 265     avahi_free(i->path);
 266     AVAHI_LLIST_REMOVE(DomainBrowserInfo, domain_browsers, i->client->domain_browsers, i);
 267
 268     i->client->n_objects--;
 269     assert(i->client->n_objects >= 0);
 270
 271     avahi_free(i);
 272 }
 273
 274 static void service_type_browser_free(ServiceTypeBrowserInfo *i) {
 275     assert(i);
 276
 277     if (i->service_type_browser)
 278         avahi_s_service_type_browser_free(i->service_type_browser);
 279     dbus_connection_unregister_object_path(server->bus, i->path);
 280     avahi_free(i->path);
 281     AVAHI_LLIST_REMOVE(ServiceTypeBrowserInfo, service_type_browsers, i->client->service_type_browsers, i);
 282
 283     i->client->n_objects--;
 284     assert(i->client->n_objects >= 0);
 285
 286     avahi_free(i);
 287 }
 288
 289 static void service_browser_free(ServiceBrowserInfo *i) {
 290     assert(i);
 291
 292     if (i->service_browser)
 293         avahi_s_service_browser_free(i->service_browser);
 294     dbus_connection_unregister_object_path(server->bus, i->path);
 295     avahi_free(i->path);
 296     AVAHI_LLIST_REMOVE(ServiceBrowserInfo, service_browsers, i->client->service_browsers, i);
 297
 298     i->client->n_objects--;
 299     assert(i->client->n_objects >= 0);
 300
 301     avahi_free(i);
 302 }
 303
 304 static void sync_service_resolver_free(SyncServiceResolverInfo *i) {
 305     assert(i);
 306
 307     if (i->service_resolver)
 308         avahi_s_service_resolver_free(i->service_resolver);
 309     dbus_message_unref(i->message);
 310     AVAHI_LLIST_REMOVE(SyncServiceResolverInfo, sync_service_resolvers, i->client->sync_service_resolvers, i);
 311
 312     i->client->n_objects--;
 313     assert(i->client->n_objects >= 0);
 314
 315     avahi_free(i);
 316 }
 317
 318 static void async_service_resolver_free(AsyncServiceResolverInfo *i) {
 319     assert(i);
 320
 321     if (i->service_resolver)
 322         avahi_s_service_resolver_free(i->service_resolver);
 323
 324     dbus_connection_unregister_object_path(server->bus, i->path);
 325     AVAHI_LLIST_REMOVE(AsyncServiceResolverInfo, async_service_resolvers, i->client->async_service_resolvers, i);
 326
 327     i->client->n_objects--;
 328     assert(i->client->n_objects >= 0);
 329
 330     avahi_free(i);
 331 }
 332
 333 static void client_free(Client *c) {
 334
 335     assert(server);
 336     assert(c);
 337
 338     while (c->entry_groups)
 339         entry_group_free(c->entry_groups);
 340
 341     while (c->sync_host_name_resolvers)
 342         sync_host_name_resolver_free(c->sync_host_name_resolvers);
 343
 344     while (c->async_host_name_resolvers)
 345         async_host_name_resolver_free(c->async_host_name_resolvers);
 346
 347     while (c->sync_address_resolvers)
 348         sync_address_resolver_free(c->sync_address_resolvers);
 349
 350     while (c->async_address_resolvers)
 351         async_address_resolver_free(c->async_address_resolvers);
 352
 353     while (c->domain_browsers)
 354         domain_browser_free(c->domain_browsers);
 355
 356     while (c->service_type_browsers)
 357         service_type_browser_free(c->service_type_browsers);
 358
 359     while (c->service_browsers)
 360         service_browser_free(c->service_browsers);
 361
 362     while (c->sync_service_resolvers)
 363         sync_service_resolver_free(c->sync_service_resolvers);
 364
 365     while (c->async_service_resolvers)
 366         async_service_resolver_free(c->async_service_resolvers);
 367
 368     assert(c->n_objects == 0);
 369
 370     avahi_free(c->name);
 371     AVAHI_LLIST_REMOVE(Client, clients, server->clients, c);
 372     avahi_free(c);
 373
 374     server->n_clients --;
 375     assert(server->n_clients >= 0);
 376 }
 377
 378 static Client *client_get(const char *name, int create) {
 379     Client *client;
 380
 381     assert(server);
 382     assert(name);
 383
 384     for (client = server->clients; client; client = client->clients_next)
 385         if (!strcmp(name, client->name))
 386             return client;
 387
 388     if (!create)
 389         return NULL;
 390
 391     if (server->n_clients >= MAX_CLIENTS)
 392         return NULL;
 393
 394     /* If not existant yet, create a new entry */
 395     client = avahi_new(Client, 1);
 396     client->id = server->current_id++;
 397     client->name = avahi_strdup(name);
 398     client->current_id = 0;
 399     client->n_objects = 0;
 400
 401     AVAHI_LLIST_HEAD_INIT(EntryGroupInfo, client->entry_groups);
 402     AVAHI_LLIST_HEAD_INIT(SyncHostNameResolverInfo, client->sync_host_name_resolvers);
 403     AVAHI_LLIST_HEAD_INIT(AsyncHostNameResolverInfo, client->async_host_name_resolvers);
 404     AVAHI_LLIST_HEAD_INIT(SyncAddressResolverInfo, client->sync_address_resolvers);
 405     AVAHI_LLIST_HEAD_INIT(AsyncAddressResolverInfo, client->async_address_resolvers);
 406     AVAHI_LLIST_HEAD_INIT(DomainBrowserInfo, client->domain_browsers);
 407     AVAHI_LLIST_HEAD_INIT(ServiceTypeBrowserInfo, client->service_type_browsers);
 408     AVAHI_LLIST_HEAD_INIT(ServiceBrowserInfo, client->service_browsers);
 409     AVAHI_LLIST_HEAD_INIT(SyncServiceResolverInfo, client->sync_service_resolvers);
 410     AVAHI_LLIST_HEAD_INIT(AsyncServiceResolverInfo, client->async_service_resolvers);
 411
 412     AVAHI_LLIST_PREPEND(Client, clients, server->clients, client);
 413
 414     server->n_clients++;
 415     assert(server->n_clients > 0);
 416
 417     return client;
 418 }
 419
 420 static DBusHandlerResult respond_error(DBusConnection *c, DBusMessage *m, int error, const char *text) {
 421     DBusMessage *reply;
 422
 423     assert(-error > -AVAHI_OK);
 424     assert(-error < -AVAHI_ERR_MAX);
 425
 426     reply = dbus_message_new_error(m, avahi_error_number_to_dbus (error), text ? text : avahi_strerror(error));
 427     dbus_connection_send(c, reply, NULL);
 428     dbus_message_unref(reply);
 429
 430     return DBUS_HANDLER_RESULT_HANDLED;
 431 }
 432
 433 static DBusHandlerResult respond_string(DBusConnection *c, DBusMessage *m, const char *text) {
 434     DBusMessage *reply;
 435
 436     reply = dbus_message_new_method_return(m);
 437     dbus_message_append_args(reply, DBUS_TYPE_STRING, &text, DBUS_TYPE_INVALID);
 438     dbus_connection_send(c, reply, NULL);
 439     dbus_message_unref(reply);
 440
 441     return DBUS_HANDLER_RESULT_HANDLED;
 442 }
 443
 444 static DBusHandlerResult respond_int32(DBusConnection *c, DBusMessage *m, int32_t i) {
 445     DBusMessage *reply;
 446
 447     reply = dbus_message_new_method_return(m);
 448     dbus_message_append_args(reply, DBUS_TYPE_INT32, &i, DBUS_TYPE_INVALID);
 449     dbus_connection_send(c, reply, NULL);
 450     dbus_message_unref(reply);
 451
 452     return DBUS_HANDLER_RESULT_HANDLED;
 453 }
 454
 455 static DBusHandlerResult respond_ok(DBusConnection *c, DBusMessage *m) {
 456     DBusMessage *reply;
 457
 458     reply = dbus_message_new_method_return(m);
 459     dbus_connection_send(c, reply, NULL);
 460     dbus_message_unref(reply);
 461
 462     return DBUS_HANDLER_RESULT_HANDLED;
 463 }
 464
 465 static DBusHandlerResult respond_path(DBusConnection *c, DBusMessage *m, const char *path) {
 466     DBusMessage *reply;
 467
 468     reply = dbus_message_new_method_return(m);
 469     dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID);
 470     dbus_connection_send(c, reply, NULL);
 471     dbus_message_unref(reply);
 472
 473     return DBUS_HANDLER_RESULT_HANDLED;
 474 }
 475
 476 static char *file_get_contents(char *fname) {
 477     int fd = -1;
 478     struct stat st;
 479     ssize_t size;
 480     char *buf = NULL;
 481
 482     assert(fname);
 483
 484     if (!(fd = open(fname, O_RDONLY))) {
 485         avahi_log_error("Failed to open %s: %s", fname, strerror(errno));
 486         goto fail;
 487     }
 488
 489     if (fstat(fd, &st) < 0) {
 490         avahi_log_error("stat(%s) failed: %s", fname, strerror(errno));
 491         goto fail;
 492     }
 493
 494     if (!(S_ISREG(st.st_mode))) {
 495         avahi_log_error("Invalid file %s", fname);
 496         goto fail;
 497     }
 498
 499     if (st.st_size > 1024*1024) { /** 1MB */
 500         avahi_log_error("File too large %s", fname);
 501         goto fail;
 502     }
 503
 504     buf = avahi_new(char, st.st_size+1);
 505
 506     if ((size = read(fd, buf, st.st_size)) < 0) {
 507         avahi_log_error("read() failed: %s\n", strerror(errno));
 508         goto fail;
 509     }
 510
 511     buf[size] = 0;
 512
 513     close(fd);
 514     return buf;
 515
 516 fail:
 517     if (fd >= 0)
 518         close(fd);
 519
 520     if (buf)
 521         avahi_free(buf);
 522
 523     return NULL;
 524
 525 }
 526
 527 static DBusHandlerResult handle_introspect(DBusConnection *c, DBusMessage *m, const char *fname) {
 528     char *path, *contents;
 529     DBusError error;
 530
 531     assert(c);
 532     assert(m);
 533     assert(fname);
 534
 535     dbus_error_init(&error);
 536
 537     if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 538         avahi_log_error("Error parsing Introspect message: %s", error.message);
 539         goto fail;
 540     }
 541
 542     path = avahi_strdup_printf("%s/%s", AVAHI_DBUS_INTROSPECTION_DIR, fname);
 543     contents = file_get_contents(path);
 544     avahi_free(path);
 545
 546     if (!contents) {
 547         avahi_log_error("Failed to load introspection data.");
 548         goto fail;
 549     }
 550
 551     respond_string(c, m, contents);
 552     avahi_free(contents);
 553
 554     return DBUS_HANDLER_RESULT_HANDLED;
 555
 556 fail:
 557     if (dbus_error_is_set(&error))
 558         dbus_error_free(&error);
 559
 560     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 561
 562 }
 563
 564 static DBusHandlerResult msg_signal_filter_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
 565     DBusError error;
 566
 567     dbus_error_init(&error);
 568
 569 /*     avahi_log_debug("dbus: interface=%s, path=%s, member=%s", */
 570 /*                     dbus_message_get_interface(m), */
 571 /*                     dbus_message_get_path(m), */
 572 /*                     dbus_message_get_member(m)); */
 573
 574     if (dbus_message_is_signal(m, DBUS_INTERFACE_LOCAL, "Disconnected")) {
 575         /* No, we shouldn't quit, but until we get somewhere
 576          * usefull such that we can restore our state, we will */
 577         avahi_log_warn("Disconnnected from d-bus, terminating...");
 578
 579         raise(SIGQUIT); /* The signal handler will catch this and terminate the process cleanly*/
 580
 581         return DBUS_HANDLER_RESULT_HANDLED;
 582
 583     } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameAcquired")) {
 584         char *name;
 585
 586         if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID)) {
 587             avahi_log_warn("Error parsing NameAcquired message");
 588             goto fail;
 589         }
 590
 591 /*         avahi_log_info("dbus: name acquired (%s)", name); */
 592         return DBUS_HANDLER_RESULT_HANDLED;
 593
 594     } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
 595         char *name, *old, *new;
 596
 597         if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &old, DBUS_TYPE_STRING, &new, DBUS_TYPE_INVALID)) {
 598             avahi_log_warn("Error parsing NameOwnerChanged message");
 599             goto fail;
 600         }
 601
 602         if (!*new) {
 603             Client *client;
 604
 605             if ((client = client_get(name, FALSE))) {
 606 /*                 avahi_log_info("dbus: client %s vanished", name); */
 607                 client_free(client);
 608             }
 609         }
 610     }
 611
 612 fail:
 613     if (dbus_error_is_set(&error))
 614         dbus_error_free(&error);
 615
 616     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 617 }
 618
 619 static void entry_group_callback(AvahiServer *s, AvahiSEntryGroup *g, AvahiEntryGroupState state, void* userdata) {
 620     EntryGroupInfo *i = userdata;
 621     DBusMessage *m;
 622     int32_t t;
 623
 624     assert(s);
 625     assert(g);
 626     assert(i);
 627
 628     m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged");
 629     t = (int32_t) state;
 630     dbus_message_append_args(m, DBUS_TYPE_INT32, &t, DBUS_TYPE_INVALID);
 631     dbus_message_set_destination(m, i->client->name);
 632     dbus_connection_send(server->bus, m, NULL);
 633     dbus_message_unref(m);
 634 }
 635
 636 static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
 637     DBusError error;
 638     EntryGroupInfo *i = userdata;
 639
 640     assert(c);
 641     assert(m);
 642     assert(i);
 643
 644     dbus_error_init(&error);
 645
 646     avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
 647                     dbus_message_get_interface(m),
 648                     dbus_message_get_path(m),
 649                     dbus_message_get_member(m));
 650
 651     /* Introspection */
 652     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
 653         return handle_introspect(c, m, "EntryGroup.introspect");
 654
 655     /* Access control */
 656     if (strcmp(dbus_message_get_sender(m), i->client->name))
 657         return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
 658
 659     if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Free")) {
 660
 661         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 662             avahi_log_warn("Error parsing EntryGroup::Free message");
 663             goto fail;
 664         }
 665
 666         entry_group_free(i);
 667         return respond_ok(c, m);
 668
 669     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Commit")) {
 670
 671         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 672             avahi_log_warn("Error parsing EntryGroup::Commit message");
 673             goto fail;
 674         }
 675
 676         avahi_s_entry_group_commit(i->entry_group);
 677         return respond_ok(c, m);
 678
 679
 680     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Reset")) {
 681
 682         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 683             avahi_log_warn("Error parsing EntryGroup::Reset message");
 684             goto fail;
 685         }
 686
 687         avahi_s_entry_group_reset(i->entry_group);
 688         return respond_ok(c, m);
 689
 690     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "IsEmpty")) {
 691         DBusMessage *reply;
 692         int b;
 693
 694         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 695             avahi_log_warn("Error parsing EntryGroup::IsEmpty message");
 696             goto fail;
 697         }
 698
 699         b = !!avahi_s_entry_group_is_empty(i->entry_group);
 700
 701         reply = dbus_message_new_method_return(m);
 702         dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &b, DBUS_TYPE_INVALID);
 703         dbus_connection_send(c, reply, NULL);
 704         dbus_message_unref(reply);
 705
 706         return DBUS_HANDLER_RESULT_HANDLED;
 707
 708     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "GetState")) {
 709         AvahiEntryGroupState state;
 710
 711         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 712             avahi_log_warn("Error parsing EntryGroup::GetState message");
 713             goto fail;
 714         }
 715
 716         state = avahi_s_entry_group_get_state(i->entry_group);
 717         return respond_int32(c, m, (int32_t) state);
 718
 719     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddService")) {
 720         int32_t interface, protocol;
 721         char *type, *name, *domain, *host;
 722         uint16_t port;
 723         AvahiStringList *strlst;
 724         DBusMessageIter iter, sub;
 725         int j;
 726
 727         if (!dbus_message_get_args(
 728                 m, &error,
 729                 DBUS_TYPE_INT32, &interface,
 730                 DBUS_TYPE_INT32, &protocol,
 731                 DBUS_TYPE_STRING, &name,
 732                 DBUS_TYPE_STRING, &type,
 733                 DBUS_TYPE_STRING, &domain,
 734                 DBUS_TYPE_STRING, &host,
 735                 DBUS_TYPE_UINT16, &port,
 736                 DBUS_TYPE_INVALID) || !type || !name) {
 737             avahi_log_warn("Error parsing EntryGroup::AddService message");
 738             goto fail;
 739         }
 740
 741         dbus_message_iter_init(m, &iter);
 742
 743         for (j = 0; j < 7; j++)
 744             dbus_message_iter_next(&iter);
 745
 746         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
 747             dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_ARRAY) {
 748             avahi_log_warn("Error parsing EntryGroup::AddService message 2");
 749             goto fail;
 750         }
 751
 752         strlst = NULL;
 753         dbus_message_iter_recurse(&iter, &sub);
 754
 755         for (;;) {
 756             DBusMessageIter sub2;
 757             int at, n;
 758             uint8_t *k;
 759
 760             if ((at = dbus_message_iter_get_arg_type(&sub)) == DBUS_TYPE_INVALID)
 761                 break;
 762
 763             assert(at == DBUS_TYPE_ARRAY);
 764
 765             if (dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_BYTE) {
 766                 avahi_log_warn("Error parsing EntryGroup::AddService message");
 767                 goto fail;
 768             }
 769
 770             dbus_message_iter_recurse(&sub, &sub2);
 771             dbus_message_iter_get_fixed_array(&sub2, &k, &n);
 772             strlst = avahi_string_list_add_arbitrary(strlst, k, n);
 773
 774             dbus_message_iter_next(&sub);
 775         }
 776
 777         if (i->n_entries >= MAX_ENTRIES_PER_ENTRY_GROUP) {
 778             avahi_string_list_free(strlst);
 779             avahi_log_warn("Too many entries per entry group, client request failed.");
 780             return respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
 781         }
 782
 783         if (domain && !*domain)
 784             domain = NULL;
 785
 786         if (host && !*host)
 787             host = NULL;
 788
 789         if (avahi_server_add_service_strlst(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, host, port, strlst) < 0) {
 790             avahi_string_list_free(strlst);
 791             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 792         } else
 793             i->n_entries ++;
 794
 795         avahi_string_list_free(strlst);
 796
 797         return respond_ok(c, m);
 798
 799     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddAddress")) {
 800         int32_t interface, protocol;
 801         char *name, *address;
 802         AvahiAddress a;
 803
 804         if (!dbus_message_get_args(
 805                 m, &error,
 806                 DBUS_TYPE_INT32, &interface,
 807                 DBUS_TYPE_INT32, &protocol,
 808                 DBUS_TYPE_STRING, &name,
 809                 DBUS_TYPE_STRING, &address,
 810                 DBUS_TYPE_INVALID) || !name || !address) {
 811             avahi_log_warn("Error parsing EntryGroup::AddAddress message");
 812             goto fail;
 813         }
 814
 815         if (i->n_entries >= MAX_ENTRIES_PER_ENTRY_GROUP) {
 816             avahi_log_warn("Too many entries per entry group, client request failed.");
 817             return respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
 818         }
 819
 820         if (!(avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))) {
 821             return respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
 822         }
 823
 824         if (avahi_server_add_address(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, 0, name, &a) < 0)
 825             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 826         else
 827             i->n_entries ++;
 828
 829         return respond_ok(c, m);
 830     }
 831
 832     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
 833
 834 fail:
 835     if (dbus_error_is_set(&error))
 836         dbus_error_free(&error);
 837
 838     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 839 }
 840
 841 static void sync_host_name_resolver_callback(AvahiSHostNameResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const char *host_name, const AvahiAddress *a, void* userdata) {
 842     SyncHostNameResolverInfo *i = userdata;
 843
 844     assert(r);
 845     assert(host_name);
 846     assert(i);
 847
 848     if (event == AVAHI_RESOLVER_FOUND) {
 849         char t[256], *pt = t;
 850         int32_t i_interface, i_protocol, i_aprotocol;
 851         DBusMessage *reply;
 852
 853         assert(a);
 854         avahi_address_snprint(t, sizeof(t), a);
 855
 856         i_interface = (int32_t) interface;
 857         i_protocol = (int32_t) protocol;
 858         i_aprotocol = (int32_t) a->family;
 859
 860         reply = dbus_message_new_method_return(i->message);
 861         dbus_message_append_args(
 862             reply,
 863             DBUS_TYPE_INT32, &i_interface,
 864             DBUS_TYPE_INT32, &i_protocol,
 865             DBUS_TYPE_STRING, &host_name,
 866             DBUS_TYPE_INT32, &i_aprotocol,
 867             DBUS_TYPE_STRING, &pt,
 868             DBUS_TYPE_INVALID);
 869
 870         dbus_connection_send(server->bus, reply, NULL);
 871         dbus_message_unref(reply);
 872     } else {
 873         assert(event == AVAHI_RESOLVER_TIMEOUT);
 874
 875         respond_error(server->bus, i->message, AVAHI_ERR_TIMEOUT, NULL);
 876     }
 877
 878     sync_host_name_resolver_free(i);
 879 }
 880
 881 static void sync_address_resolver_callback(AvahiSAddressResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *address, const char *host_name, void* userdata) {
 882     SyncAddressResolverInfo *i = userdata;
 883
 884     assert(r);
 885     assert(address);
 886     assert(i);
 887
 888     if (event == AVAHI_RESOLVER_FOUND) {
 889         char t[256], *pt = t;
 890         int32_t i_interface, i_protocol, i_aprotocol;
 891         DBusMessage *reply;
 892
 893         assert(host_name);
 894         avahi_address_snprint(t, sizeof(t), address);
 895
 896         i_interface = (int32_t) interface;
 897         i_protocol = (int32_t) protocol;
 898         i_aprotocol = (int32_t) address->family;
 899
 900         reply = dbus_message_new_method_return(i->message);
 901         dbus_message_append_args(
 902             reply,
 903             DBUS_TYPE_INT32, &i_interface,
 904             DBUS_TYPE_INT32, &i_protocol,
 905             DBUS_TYPE_INT32, &i_aprotocol,
 906             DBUS_TYPE_STRING, &pt,
 907             DBUS_TYPE_STRING, &host_name,
 908             DBUS_TYPE_INVALID);
 909
 910         dbus_connection_send(server->bus, reply, NULL);
 911         dbus_message_unref(reply);
 912     } else {
 913         assert(event == AVAHI_RESOLVER_TIMEOUT);
 914         respond_error(server->bus, i->message, AVAHI_ERR_TIMEOUT, NULL);
 915     }
 916
 917     sync_address_resolver_free(i);
 918 }
 919
 920 static DBusHandlerResult msg_domain_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
 921     DBusError error;
 922     DomainBrowserInfo *i = userdata;
 923
 924     assert(c);
 925     assert(m);
 926     assert(i);
 927
 928     dbus_error_init(&error);
 929
 930     avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
 931                     dbus_message_get_interface(m),
 932                     dbus_message_get_path(m),
 933                     dbus_message_get_member(m));
 934
 935     /* Introspection */
 936     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
 937         return handle_introspect(c, m, "DomainBrowser.introspect");
 938
 939     /* Access control */
 940     if (strcmp(dbus_message_get_sender(m), i->client->name))
 941         return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
 942
 943     if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Free")) {
 944
 945         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 946             avahi_log_warn("Error parsing DomainBrowser::Free message");
 947             goto fail;
 948         }
 949
 950         domain_browser_free(i);
 951         return respond_ok(c, m);
 952
 953     }
 954
 955     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
 956
 957 fail:
 958     if (dbus_error_is_set(&error))
 959         dbus_error_free(&error);
 960
 961     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 962 }
 963
 964 static void domain_browser_callback(AvahiSDomainBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *domain, void* userdata) {
 965     DomainBrowserInfo *i = userdata;
 966     DBusMessage *m;
 967     int32_t i_interface, i_protocol;
 968
 969     assert(b);
 970     assert(domain);
 971     assert(i);
 972
 973     i_interface = (int32_t) interface;
 974     i_protocol = (int32_t) protocol;
 975
 976     m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
 977     dbus_message_append_args(
 978         m,
 979         DBUS_TYPE_INT32, &i_interface,
 980         DBUS_TYPE_INT32, &i_protocol,
 981         DBUS_TYPE_STRING, &domain,
 982         DBUS_TYPE_INVALID);
 983     dbus_message_set_destination(m, i->client->name);
 984     dbus_connection_send(server->bus, m, NULL);
 985     dbus_message_unref(m);
 986 }
 987
 988 static DBusHandlerResult msg_service_type_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
 989     DBusError error;
 990     ServiceTypeBrowserInfo *i = userdata;
 991
 992     assert(c);
 993     assert(m);
 994     assert(i);
 995
 996     dbus_error_init(&error);
 997
 998     avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
 999                     dbus_message_get_interface(m),
1000                     dbus_message_get_path(m),
1001                     dbus_message_get_member(m));
1002
1003     /* Introspection */
1004     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
1005         return handle_introspect(c, m, "ServiceTypeBrowser.introspect");
1006
1007     /* Access control */
1008     if (strcmp(dbus_message_get_sender(m), i->client->name))
1009         return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
1010
1011     if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Free")) {
1012
1013         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
1014             avahi_log_warn("Error parsing ServiceTypeBrowser::Free message");
1015             goto fail;
1016         }
1017
1018         service_type_browser_free(i);
1019         return respond_ok(c, m);
1020
1021     }
1022
1023     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
1024
1025 fail:
1026     if (dbus_error_is_set(&error))
1027         dbus_error_free(&error);
1028
1029     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1030 }
1031
1032 static void service_type_browser_callback(AvahiSServiceTypeBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *type, const char *domain, void* userdata) {
1033     ServiceTypeBrowserInfo *i = userdata;
1034     DBusMessage *m;
1035     int32_t i_interface, i_protocol;
1036
1037     assert(b);
1038     assert(type);
1039     assert(domain);
1040     assert(i);
1041
1042     i_interface = (int32_t) interface;
1043     i_protocol = (int32_t) protocol;
1044
1045     m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
1046     dbus_message_append_args(
1047         m,
1048         DBUS_TYPE_INT32, &i_interface,
1049         DBUS_TYPE_INT32, &i_protocol,
1050         DBUS_TYPE_STRING, &type,
1051         DBUS_TYPE_STRING, &domain,
1052         DBUS_TYPE_INVALID);
1053     dbus_message_set_destination(m, i->client->name);
1054     dbus_connection_send(server->bus, m, NULL);
1055     dbus_message_unref(m);
1056 }
1057
1058 static DBusHandlerResult msg_service_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
1059     DBusError error;
1060     ServiceBrowserInfo *i = userdata;
1061
1062     assert(c);
1063     assert(m);
1064     assert(i);
1065
1066     dbus_error_init(&error);
1067
1068     avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
1069                     dbus_message_get_interface(m),
1070                     dbus_message_get_path(m),
1071                     dbus_message_get_member(m));
1072
1073     /* Introspection */
1074     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
1075         return handle_introspect(c, m, "ServiceBrowser.Introspect");
1076
1077     /* Access control */
1078     if (strcmp(dbus_message_get_sender(m), i->client->name))
1079         return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
1080
1081     if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Free")) {
1082
1083         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
1084             avahi_log_warn("Error parsing ServiceBrowser::Free message");
1085             goto fail;
1086         }
1087
1088         service_browser_free(i);
1089         return respond_ok(c, m);
1090
1091     }
1092
1093     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
1094
1095 fail:
1096     if (dbus_error_is_set(&error))
1097         dbus_error_free(&error);
1098
1099     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1100 }
1101
1102 static void service_browser_callback(AvahiSServiceBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *name, const char *type, const char *domain, void* userdata) {
1103     ServiceBrowserInfo *i = userdata;
1104     DBusMessage *m;
1105     int32_t i_interface, i_protocol;
1106
1107     assert(b);
1108     assert(name);
1109     assert(type);
1110     assert(domain);
1111     assert(i);
1112
1113     i_interface = (int32_t) interface;
1114     i_protocol = (int32_t) protocol;
1115
1116     m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
1117     dbus_message_append_args(
1118         m,
1119         DBUS_TYPE_INT32, &i_interface,
1120         DBUS_TYPE_INT32, &i_protocol,
1121         DBUS_TYPE_STRING, &name,
1122         DBUS_TYPE_STRING, &type,
1123         DBUS_TYPE_STRING, &domain,
1124         DBUS_TYPE_INVALID);
1125     dbus_message_set_destination(m, i->client->name);
1126     dbus_connection_send(server->bus, m, NULL);
1127     dbus_message_unref(m);
1128 }
1129
1130 static void sync_service_resolver_callback(
1131     AvahiSServiceResolver *r,
1132     AvahiIfIndex interface,
1133     AvahiProtocol protocol,
1134     AvahiResolverEvent event,
1135     const char *name,
1136     const char *type,
1137     const char *domain,
1138     const char *host_name,
1139     const AvahiAddress *a,
1140     uint16_t port,
1141     AvahiStringList *txt,
1142     void* userdata) {
1143
1144     SyncServiceResolverInfo *i = userdata;
1145
1146     assert(r);
1147     assert(i);
1148
1149     if (event == AVAHI_RESOLVER_FOUND) {
1150         char t[256], *pt = t;
1151         int32_t i_interface, i_protocol, i_aprotocol;
1152         unsigned n, j;
1153         AvahiStringList *p;
1154         DBusMessage *reply;
1155         DBusMessageIter iter, sub;
1156
1157         assert(host_name);
1158
1159         assert(a);
1160         avahi_address_snprint(t, sizeof(t), a);
1161
1162         i_interface = (int32_t) interface;
1163         i_protocol = (int32_t) protocol;
1164         i_aprotocol = (int32_t) a->family;
1165
1166         reply = dbus_message_new_method_return(i->message);
1167         dbus_message_append_args(
1168             reply,
1169             DBUS_TYPE_INT32, &i_interface,
1170             DBUS_TYPE_INT32, &i_protocol,
1171             DBUS_TYPE_STRING, &name,
1172             DBUS_TYPE_STRING, &type,
1173             DBUS_TYPE_STRING, &domain,
1174             DBUS_TYPE_STRING, &host_name,
1175             DBUS_TYPE_INT32, &i_aprotocol,
1176             DBUS_TYPE_STRING, &pt,
1177             DBUS_TYPE_UINT16, &port,
1178             DBUS_TYPE_INVALID);
1179
1180         dbus_message_iter_init_append(reply, &iter);
1181         dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "ay", &sub);
1182
1183         for (p = txt, j = n-1; p; p = p->next, j--) {
1184             DBusMessageIter sub2;
1185             const uint8_t *data = p->text;
1186
1187             dbus_message_iter_open_container(&sub, DBUS_TYPE_ARRAY, "y", &sub2);
1188             dbus_message_iter_append_fixed_array(&sub2, DBUS_TYPE_BYTE, &data, p->size);
1189             dbus_message_iter_close_container(&sub, &sub2);
1190
1191         }
1192         dbus_message_iter_close_container(&iter, &sub);
1193
1194         dbus_connection_send(server->bus, reply, NULL);
1195         dbus_message_unref(reply);
1196     } else {
1197         assert(event == AVAHI_RESOLVER_TIMEOUT);
1198
1199         respond_error(server->bus, i->message, AVAHI_ERR_TIMEOUT, NULL);
1200     }
1201
1202     sync_service_resolver_free(i);
1203 }
1204
1205 static void async_address_resolver_callback(AvahiSAddressResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *address, const char *host_name, void* userdata) {
1206     AsyncAddressResolverInfo *i = userdata;
1207     DBusMessage *reply;
1208
1209     assert(r);
1210     assert(address);
1211     assert(i);
1212
1213     if (event == AVAHI_RESOLVER_FOUND) {
1214         char t[256], *pt = t;
1215         int32_t i_interface, i_protocol, i_aprotocol;
1216
1217         assert(host_name);
1218         avahi_address_snprint(t, sizeof(t), address);
1219
1220         i_interface = (int32_t) interface;
1221         i_protocol = (int32_t) protocol;
1222         i_aprotocol = (int32_t) address->family;
1223
1224         reply = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Found");
1225         dbus_message_append_args(
1226             reply,
1227             DBUS_TYPE_INT32, &i_interface,
1228             DBUS_TYPE_INT32, &i_protocol,
1229             DBUS_TYPE_INT32, &i_aprotocol,
1230             DBUS_TYPE_STRING, &pt,
1231             DBUS_TYPE_STRING, &host_name,
1232             DBUS_TYPE_INVALID);
1233
1234     } else {
1235         assert(event == AVAHI_RESOLVER_TIMEOUT);
1236
1237         reply = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Timeout");
1238     }
1239
1240     dbus_connection_send(server->bus, reply, NULL);
1241     dbus_message_unref(reply);
1242 }
1243
1244 static DBusHandlerResult msg_async_address_resolver_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
1245     DBusError error;
1246     AsyncAddressResolverInfo *i = userdata;
1247
1248     assert(c);
1249     assert(m);
1250     assert(i);
1251
1252     dbus_error_init(&error);
1253
1254     avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
1255                     dbus_message_get_interface(m),
1256                     dbus_message_get_path(m),
1257                     dbus_message_get_member(m));
1258
1259     /* Introspection */
1260     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
1261         return handle_introspect(c, m, "AddressResolver.Introspect");
1262
1263     /* Access control */
1264     if (strcmp(dbus_message_get_sender(m), i->client->name))
1265         return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
1266
1267     if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Free")) {
1268
1269         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
1270             avahi_log_warn("Error parsing AddressResolver::Free message");
1271             goto fail;
1272         }
1273
1274         async_address_resolver_free(i);
1275         return respond_ok(c, m);
1276
1277     }
1278
1279     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
1280
1281 fail:
1282     if (dbus_error_is_set(&error))
1283         dbus_error_free(&error);
1284
1285     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1286 }
1287
1288 static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
1289     DBusError error;
1290
1291     dbus_error_init(&error);
1292
1293     avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
1294                     dbus_message_get_interface(m),
1295                     dbus_message_get_path(m),
1296                     dbus_message_get_member(m));
1297
1298     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
1299         return handle_introspect(c, m, "Server.introspect");
1300
1301     else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostName")) {
1302
1303         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
1304             avahi_log_warn("Error parsing Server::GetHostName message");
1305             goto fail;
1306         }
1307
1308         return respond_string(c, m, avahi_server_get_host_name(avahi_server));
1309
1310     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetDomainName")) {
1311
1312         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
1313             avahi_log_warn("Error parsing Server::GetDomainName message");
1314             goto fail;
1315         }
1316
1317         return respond_string(c, m, avahi_server_get_domain_name(avahi_server));
1318
1319     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostNameFqdn")) {
1320
1321         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
1322             avahi_log_warn("Error parsing Server::GetHostNameFqdn message");
1323             goto fail;
1324         }
1325
1326         return respond_string(c, m, avahi_server_get_host_name_fqdn(avahi_server));
1327
1328     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")) {
1329
1330         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
1331             avahi_log_warn("Error parsing Server::GetVersionString message");
1332             goto fail;
1333         }
1334
1335         return respond_string(c, m, PACKAGE_STRING);
1336
1337     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetState")) {
1338         AvahiServerState state;
1339
1340         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
1341             avahi_log_warn("Error parsing Server::GetState message");
1342             goto fail;
1343         }
1344
1345         state = avahi_server_get_state(avahi_server);
1346         return respond_int32(c, m, (int32_t) state);
1347
1348     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetNetworkInterfaceNameByIndex")) {
1349         int32_t idx;
1350         int fd;
1351         struct ifreq ifr;
1352
1353         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INT32, &idx, DBUS_TYPE_INVALID))) {
1354             avahi_log_warn("Error parsing Server::GetNetworkInterfaceNameByIndex message");
1355             goto fail;
1356         }
1357
1358 #ifdef VALGRIND_WORKAROUND
1359         return respond_string(c, m, "blah");
1360 #else
1361
1362         if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
1363             char txt[256];
1364             snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
1365             return respond_error(c, m, AVAHI_ERR_OS, txt);
1366         }
1367
1368         memset(&ifr, 0, sizeof(ifr));
1369         ifr.ifr_ifindex = idx;
1370
1371         if (ioctl(fd, SIOCGIFNAME, &ifr) < 0) {
1372             char txt[256];
1373             snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
1374             close(fd);
1375             return respond_error(c, m, AVAHI_ERR_OS, txt);
1376         }
1377
1378         close(fd);
1379
1380         return respond_string(c, m, ifr.ifr_name);
1381 #endif
1382
1383     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetNetworkInterfaceIndexByName")) {
1384         char *n;
1385         int fd;
1386         struct ifreq ifr;
1387
1388         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n) {
1389             avahi_log_warn("Error parsing Server::GetNetworkInterfaceIndexByName message");
1390             goto fail;
1391         }
1392
1393 #ifdef VALGRIND_WORKAROUND
1394         return respond_int32(c, m, 1);
1395 #else
1396         if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
1397             char txt[256];
1398             snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
1399             return respond_error(c, m, AVAHI_ERR_OS, txt);
1400         }
1401
1402         memset(&ifr, 0, sizeof(ifr));
1403         snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s", n);
1404
1405         if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
1406             char txt[256];
1407             snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
1408             close(fd);
1409             return respond_error(c, m, AVAHI_ERR_OS, txt);
1410         }
1411
1412         close(fd);
1413
1414         return respond_int32(c, m, ifr.ifr_ifindex);
1415 #endif
1416
1417     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetAlternativeHostName")) {
1418         char *n, * t;
1419
1420         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n) {
1421             avahi_log_warn("Error parsing Server::GetAlternativeHostName message");
1422             goto fail;
1423         }
1424
1425         t = avahi_alternative_host_name(n);
1426         respond_string(c, m, t);
1427         avahi_free(t);
1428
1429         return DBUS_HANDLER_RESULT_HANDLED;
1430
1431     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetAlternativeServiceName")) {
1432         char *n, *t;
1433
1434         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n) {
1435             avahi_log_warn("Error parsing Server::GetAlternativeServiceName message");
1436             goto fail;
1437         }
1438
1439         t = avahi_alternative_service_name(n);
1440         respond_string(c, m, t);
1441         avahi_free(t);
1442
1443         return DBUS_HANDLER_RESULT_HANDLED;
1444
1445     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "EntryGroupNew")) {
1446         Client *client;
1447         EntryGroupInfo *i;
1448         static const DBusObjectPathVTable vtable = {
1449             NULL,
1450             msg_entry_group_impl,
1451             NULL,
1452             NULL,
1453             NULL,
1454             NULL
1455         };
1456
1457         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
1458             avahi_log_warn("Error parsing Server::EntryGroupNew message");
1459             goto fail;
1460         }
1461
1462         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1463             avahi_log_warn("Too many clients, client request failed.");
1464             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1465         }
1466
1467         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1468             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1469             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1470         }
1471
1472         i = avahi_new(EntryGroupInfo, 1);
1473         i->id = ++client->current_id;
1474         i->client = client;
1475         i->path = avahi_strdup_printf("/Client%u/EntryGroup%u", client->id, i->id);
1476         i->n_entries = 0;
1477         AVAHI_LLIST_PREPEND(EntryGroupInfo, entry_groups, client->entry_groups, i);
1478         client->n_objects++;
1479
1480         if (!(i->entry_group = avahi_s_entry_group_new(avahi_server, entry_group_callback, i))) {
1481             entry_group_free(i);
1482             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1483         }
1484
1485         dbus_connection_register_object_path(c, i->path, &vtable, i);
1486         return respond_path(c, m, i->path);
1487
1488     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveHostName")) {
1489         Client *client;
1490         int32_t interface, protocol, aprotocol;
1491         char *name;
1492         SyncHostNameResolverInfo *i;
1493
1494         if (!dbus_message_get_args(
1495                 m, &error,
1496                 DBUS_TYPE_INT32, &interface,
1497                 DBUS_TYPE_INT32, &protocol,
1498                 DBUS_TYPE_STRING, &name,
1499                 DBUS_TYPE_INT32, &aprotocol,
1500                 DBUS_TYPE_INVALID) || !name) {
1501             avahi_log_warn("Error parsing Server::ResolveHostName message");
1502             goto fail;
1503         }
1504
1505         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1506             avahi_log_warn("Too many clients, client request failed.");
1507             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1508         }
1509
1510         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1511             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1512             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1513         }
1514
1515         i = avahi_new(SyncHostNameResolverInfo, 1);
1516         i->client = client;
1517         i->message = dbus_message_ref(m);
1518         AVAHI_LLIST_PREPEND(SyncHostNameResolverInfo, sync_host_name_resolvers, client->sync_host_name_resolvers, i);
1519         client->n_objects++;
1520
1521         if (!(i->host_name_resolver = avahi_s_host_name_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, (AvahiProtocol) aprotocol, sync_host_name_resolver_callback, i))) {
1522             sync_host_name_resolver_free(i);
1523             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1524         }
1525
1526         return DBUS_HANDLER_RESULT_HANDLED;
1527
1528     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveAddress")) {
1529         Client *client;
1530         int32_t interface, protocol;
1531         char *address;
1532         SyncAddressResolverInfo *i;
1533         AvahiAddress a;
1534
1535         if (!dbus_message_get_args(
1536                 m, &error,
1537                 DBUS_TYPE_INT32, &interface,
1538                 DBUS_TYPE_INT32, &protocol,
1539                 DBUS_TYPE_STRING, &address,
1540                 DBUS_TYPE_INVALID) || !address) {
1541             avahi_log_warn("Error parsing Server::ResolveAddress message");
1542             goto fail;
1543         }
1544
1545         if (!avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))
1546             return respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
1547
1548         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1549             avahi_log_warn("Too many clients, client request failed.");
1550             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1551         }
1552
1553         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1554             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1555             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1556         }
1557
1558         i = avahi_new(SyncAddressResolverInfo, 1);
1559         i->client = client;
1560         i->message = dbus_message_ref(m);
1561         AVAHI_LLIST_PREPEND(SyncAddressResolverInfo, sync_address_resolvers, client->sync_address_resolvers, i);
1562         client->n_objects++;
1563
1564         if (!(i->address_resolver = avahi_s_address_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, &a, sync_address_resolver_callback, i))) {
1565             sync_address_resolver_free(i);
1566             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1567         }
1568
1569         return DBUS_HANDLER_RESULT_HANDLED;
1570
1571     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "DomainBrowserNew")) {
1572         Client *client;
1573         DomainBrowserInfo *i;
1574         static const DBusObjectPathVTable vtable = {
1575             NULL,
1576             msg_domain_browser_impl,
1577             NULL,
1578             NULL,
1579             NULL,
1580             NULL
1581         };
1582         int32_t interface, protocol, type;
1583         char *domain;
1584
1585
1586         if (!dbus_message_get_args(
1587                 m, &error,
1588                 DBUS_TYPE_INT32, &interface,
1589                 DBUS_TYPE_INT32, &protocol,
1590                 DBUS_TYPE_STRING, &domain,
1591                 DBUS_TYPE_INT32, &type,
1592                 DBUS_TYPE_INVALID) || type < 0 || type >= AVAHI_DOMAIN_BROWSER_MAX) {
1593             avahi_log_warn("Error parsing Server::DomainBrowserNew message");
1594             goto fail;
1595         }
1596
1597         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1598             avahi_log_warn("Too many clients, client request failed.");
1599             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1600         }
1601
1602         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1603             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1604             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1605         }
1606
1607         if (!*domain)
1608             domain = NULL;
1609
1610         i = avahi_new(DomainBrowserInfo, 1);
1611         i->id = ++client->current_id;
1612         i->client = client;
1613         i->path = avahi_strdup_printf("/Client%u/DomainBrowser%u", client->id, i->id);
1614         AVAHI_LLIST_PREPEND(DomainBrowserInfo, domain_browsers, client->domain_browsers, i);
1615         client->n_objects++;
1616
1617         if (!(i->domain_browser = avahi_s_domain_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, (AvahiDomainBrowserType) type, domain_browser_callback, i))) {
1618             domain_browser_free(i);
1619             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1620         }
1621
1622         dbus_connection_register_object_path(c, i->path, &vtable, i);
1623         return respond_path(c, m, i->path);
1624
1625     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceTypeBrowserNew")) {
1626         Client *client;
1627         ServiceTypeBrowserInfo *i;
1628         static const DBusObjectPathVTable vtable = {
1629             NULL,
1630             msg_service_type_browser_impl,
1631             NULL,
1632             NULL,
1633             NULL,
1634             NULL
1635         };
1636         int32_t interface, protocol;
1637         char *domain;
1638
1639         if (!dbus_message_get_args(
1640                 m, &error,
1641                 DBUS_TYPE_INT32, &interface,
1642                 DBUS_TYPE_INT32, &protocol,
1643                 DBUS_TYPE_STRING, &domain,
1644                 DBUS_TYPE_INVALID)) {
1645             avahi_log_warn("Error parsing Server::ServiceTypeBrowserNew message");
1646             goto fail;
1647         }
1648
1649         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1650             avahi_log_warn("Too many clients, client request failed.");
1651             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1652         }
1653
1654
1655         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1656             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1657             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1658         }
1659
1660         if (!*domain)
1661             domain = NULL;
1662
1663         i = avahi_new(ServiceTypeBrowserInfo, 1);
1664         i->id = ++client->current_id;
1665         i->client = client;
1666         i->path = avahi_strdup_printf("/Client%u/ServiceTypeBrowser%u", client->id, i->id);
1667         AVAHI_LLIST_PREPEND(ServiceTypeBrowserInfo, service_type_browsers, client->service_type_browsers, i);
1668         client->n_objects++;
1669
1670         if (!(i->service_type_browser = avahi_s_service_type_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, service_type_browser_callback, i))) {
1671             service_type_browser_free(i);
1672             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1673         }
1674
1675         dbus_connection_register_object_path(c, i->path, &vtable, i);
1676         return respond_path(c, m, i->path);
1677
1678     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceBrowserNew")) {
1679         Client *client;
1680         ServiceBrowserInfo *i;
1681         static const DBusObjectPathVTable vtable = {
1682             NULL,
1683             msg_service_browser_impl,
1684             NULL,
1685             NULL,
1686             NULL,
1687             NULL
1688         };
1689         int32_t interface, protocol;
1690         char *domain, *type;
1691
1692         if (!dbus_message_get_args(
1693                 m, &error,
1694                 DBUS_TYPE_INT32, &interface,
1695                 DBUS_TYPE_INT32, &protocol,
1696                 DBUS_TYPE_STRING, &type,
1697                 DBUS_TYPE_STRING, &domain,
1698                 DBUS_TYPE_INVALID) || !type) {
1699             avahi_log_warn("Error parsing Server::ServiceBrowserNew message");
1700             goto fail;
1701         }
1702
1703         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1704             avahi_log_warn("Too many clients, client request failed.");
1705             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1706         }
1707
1708
1709         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1710             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1711             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1712         }
1713
1714         if (!*domain)
1715             domain = NULL;
1716
1717         i = avahi_new(ServiceBrowserInfo, 1);
1718         i->id = ++client->current_id;
1719         i->client = client;
1720         i->path = avahi_strdup_printf("/Client%u/ServiceBrowser%u", client->id, i->id);
1721         AVAHI_LLIST_PREPEND(ServiceBrowserInfo, service_browsers, client->service_browsers, i);
1722         client->n_objects++;
1723
1724         if (!(i->service_browser = avahi_s_service_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, type, domain, service_browser_callback, i))) {
1725             service_browser_free(i);
1726             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1727         }
1728
1729         dbus_connection_register_object_path(c, i->path, &vtable, i);
1730         return respond_path(c, m, i->path);
1731
1732     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveService")) {
1733         Client *client;
1734         int32_t interface, protocol, aprotocol;
1735         char *name, *type, *domain;
1736         SyncServiceResolverInfo *i;
1737
1738         if (!dbus_message_get_args(
1739                 m, &error,
1740                 DBUS_TYPE_INT32, &interface,
1741                 DBUS_TYPE_INT32, &protocol,
1742                 DBUS_TYPE_STRING, &name,
1743                 DBUS_TYPE_STRING, &type,
1744                 DBUS_TYPE_STRING, &domain,
1745                 DBUS_TYPE_INT32, &aprotocol,
1746                 DBUS_TYPE_INVALID) || !name || !type) {
1747             avahi_log_warn("Error parsing Server::ResolveService message");
1748             goto fail;
1749         }
1750
1751         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1752             avahi_log_warn("Too many clients, client request failed.");
1753             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1754         }
1755
1756         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1757             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
1758             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1759         }
1760
1761         if (!*domain)
1762             domain = NULL;
1763
1764         i = avahi_new(SyncServiceResolverInfo, 1);
1765         i->client = client;
1766         i->message = dbus_message_ref(m);
1767         AVAHI_LLIST_PREPEND(SyncServiceResolverInfo, sync_service_resolvers, client->sync_service_resolvers, i);
1768         client->n_objects++;
1769
1770         if (!(i->service_resolver = avahi_s_service_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, (AvahiProtocol) aprotocol, sync_service_resolver_callback, i))) {
1771             sync_service_resolver_free(i);
1772             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1773         }
1774
1775         return DBUS_HANDLER_RESULT_HANDLED;
1776     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceResolverNew")) {
1777
1778     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "HostNameResolverNew")) {
1779
1780     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "AddressResolverNew")) {
1781
1782         Client *client;
1783         static const DBusObjectPathVTable vtable = {
1784             NULL,
1785             msg_async_address_resolver_impl,
1786             NULL,
1787             NULL,
1788             NULL,
1789             NULL
1790         };
1791
1792         int32_t interface, protocol;
1793         char *address;
1794         AsyncAddressResolverInfo *i;
1795         AvahiAddress a;
1796
1797         if (!dbus_message_get_args(
1798                 m, &error,
1799                 DBUS_TYPE_INT32, &interface,
1800                 DBUS_TYPE_INT32, &protocol,
1801                 DBUS_TYPE_STRING, &address,
1802                 DBUS_TYPE_INVALID) || !address) {
1803             avahi_log_warn("Error parsing Server::AddressResolverNew message");
1804             goto fail;
1805         }
1806
1807         if (!avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))
1808             return respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
1809
1810         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
1811             avahi_log_warn(__FILE__": Too many clients, client request failed.");
1812             return respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
1813         }
1814
1815         if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
1816             avahi_log_warn(__FILE__": Too many objects for client '%s', client request failed.", client->name);
1817             return respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
1818         }
1819
1820         i = avahi_new(AsyncAddressResolverInfo, 1);
1821         i->id = ++client->current_id;
1822         i->client = client;
1823         i->path = avahi_strdup_printf("/Client%u/AddressResolver%u", client->id, i->id);
1824         AVAHI_LLIST_PREPEND(AsyncAddressResolverInfo, async_address_resolvers, client->async_address_resolvers, i);
1825         client->n_objects++;
1826
1827         if (!(i->address_resolver = avahi_s_address_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, &a, async_address_resolver_callback, i))) {
1828             async_address_resolver_free(i);
1829             return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
1830         }
1831
1832         dbus_connection_register_object_path(c, i->path, &vtable, i);
1833         return respond_path(c, m, i->path);
1834     }
1835
1836     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
1837
1838 fail:
1839     if (dbus_error_is_set(&error))
1840         dbus_error_free(&error);
1841
1842     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1843 }
1844
1845 void dbus_protocol_server_state_changed(AvahiServerState state) {
1846     DBusMessage *m;
1847     int32_t t;
1848
1849     if (!server)
1850         return;
1851
1852     m = dbus_message_new_signal(AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "StateChanged");
1853     t = (int32_t) state;
1854     dbus_message_append_args(m, DBUS_TYPE_INT32, &t, DBUS_TYPE_INVALID);
1855     dbus_connection_send(server->bus, m, NULL);
1856     dbus_message_unref(m);
1857 }
1858
1859 int dbus_protocol_setup(const AvahiPoll *poll_api) {
1860     DBusError error;
1861
1862     static const DBusObjectPathVTable server_vtable = {
1863         NULL,
1864         msg_server_impl,
1865         NULL,
1866         NULL,
1867         NULL,
1868         NULL
1869     };
1870
1871     dbus_error_init(&error);
1872
1873     server = avahi_new(Server, 1);
1874     AVAHI_LLIST_HEAD_INIT(Clients, server->clients);
1875     server->current_id = 0;
1876     server->n_clients = 0;
1877
1878     if (!(server->bus = dbus_bus_get(DBUS_BUS_SYSTEM, &error))) {
1879         assert(dbus_error_is_set(&error));
1880         avahi_log_error("dbus_bus_get(): %s", error.message);
1881         goto fail;
1882     }
1883
1884     if (avahi_dbus_connection_glue(server->bus, poll_api) < 0) {
1885         avahi_log_error("avahi_dbus_connection_glue() failed");
1886         goto fail;
1887     }
1888
1889     if (dbus_bus_request_name(server->bus, AVAHI_DBUS_NAME, DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT, &error) != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
1890         if (dbus_error_is_set(&error)) {
1891             avahi_log_error("dbus_bus_request_name(): %s", error.message);
1892             goto fail;
1893         }
1894
1895         avahi_log_error("Failed to acquire DBUS name '"AVAHI_DBUS_NAME"'");
1896         goto fail;
1897     }
1898
1899     if (!(dbus_connection_add_filter(server->bus, msg_signal_filter_impl, (void*) poll_api, NULL))) {
1900         avahi_log_error("dbus_connection_add_filter() failed");
1901         goto fail;
1902     }
1903
1904     dbus_bus_add_match(server->bus, "type='signal',""interface='" DBUS_INTERFACE_DBUS  "'", &error);
1905
1906     if (dbus_error_is_set(&error)) {
1907         avahi_log_error("dbus_bus_add_match(): %s", error.message);
1908         goto fail;
1909     }
1910
1911     if (!(dbus_connection_register_object_path(server->bus, AVAHI_DBUS_PATH_SERVER, &server_vtable, NULL))) {
1912         avahi_log_error("dbus_connection_register_object_path() failed");
1913         goto fail;
1914     }
1915
1916     return 0;
1917
1918 fail:
1919     if (server->bus) {
1920         dbus_connection_disconnect(server->bus);
1921         dbus_connection_unref(server->bus);
1922     }
1923
1924     if (dbus_error_is_set(&error))
1925         dbus_error_free(&error);
1926
1927     avahi_free(server);
1928     server = NULL;
1929     return -1;
1930 }
1931
1932 void dbus_protocol_shutdown(void) {
1933
1934     if (server) {
1935
1936         while (server->clients)
1937             client_free(server->clients);
1938
1939         assert(server->n_clients == 0);
1940
1941         if (server->bus) {
1942             dbus_connection_disconnect(server->bus);
1943             dbus_connection_unref(server->bus);
1944         }
1945
1946         avahi_free(server);
1947         server = NULL;
1948     }
1949 }