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 <sys/types.h>
  29 #include <sys/socket.h>
  30 #include <netinet/in.h>
  31 #include <net/if.h>
  32 #include <errno.h>
  33 #include <unistd.h>
  34 #include <assert.h>
  35 #include <sys/stat.h>
  36 #include <fcntl.h>
  37 #include <stdio.h>
  38 #include <signal.h>
  39 #include <stdlib.h>
  40
  41 #include <dbus/dbus.h>
  42
  43 #include <avahi-common/dbus.h>
  44 #include <avahi-common/llist.h>
  45 #include <avahi-common/malloc.h>
  46 #include <avahi-common/dbus.h>
  47 #include <avahi-common/dbus-watch-glue.h>
  48 #include <avahi-common/alternative.h>
  49 #include <avahi-common/error.h>
  50 #include <avahi-common/domain.h>
  51 #include <avahi-common/timeval.h>
  52
  53 #include <avahi-core/log.h>
  54 #include <avahi-core/core.h>
  55 #include <avahi-core/lookup.h>
  56 #include <avahi-core/publish.h>
  57
  58 #include "dbus-protocol.h"
  59 #include "dbus-util.h"
  60 #include "dbus-internal.h"
  61 #include "main.h"
  62
  63 /* #define VALGRIND_WORKAROUND 1 */
  64
  65 #define RECONNECT_MSEC 3000
  66
  67 Server *server = NULL;
  68
  69 static int disable_user_service_publishing = 0;
  70
  71 static int dbus_connect(void);
  72 static void dbus_disconnect(void);
  73
  74 static void client_free(Client *c) {
  75
  76     assert(server);
  77     assert(c);
  78
  79     while (c->entry_groups)
  80         avahi_dbus_entry_group_free(c->entry_groups);
  81
  82     while (c->sync_host_name_resolvers)
  83         avahi_dbus_sync_host_name_resolver_free(c->sync_host_name_resolvers);
  84
  85     while (c->async_host_name_resolvers)
  86         avahi_dbus_async_host_name_resolver_free(c->async_host_name_resolvers);
  87
  88     while (c->sync_address_resolvers)
  89         avahi_dbus_sync_address_resolver_free(c->sync_address_resolvers);
  90
  91     while (c->async_address_resolvers)
  92         avahi_dbus_async_address_resolver_free(c->async_address_resolvers);
  93
  94     while (c->domain_browsers)
  95         avahi_dbus_domain_browser_free(c->domain_browsers);
  96
  97     while (c->service_type_browsers)
  98         avahi_dbus_service_type_browser_free(c->service_type_browsers);
  99
 100     while (c->service_browsers)
 101         avahi_dbus_service_browser_free(c->service_browsers);
 102
 103     while (c->sync_service_resolvers)
 104         avahi_dbus_sync_service_resolver_free(c->sync_service_resolvers);
 105
 106     while (c->async_service_resolvers)
 107         avahi_dbus_async_service_resolver_free(c->async_service_resolvers);
 108
 109     while (c->record_browsers)
 110         avahi_dbus_record_browser_free(c->record_browsers);
 111
 112     assert(c->n_objects == 0);
 113
 114     avahi_free(c->name);
 115     AVAHI_LLIST_REMOVE(Client, clients, server->clients, c);
 116     avahi_free(c);
 117
 118     server->n_clients --;
 119     assert(server->n_clients >= 0);
 120 }
 121
 122 static Client *client_get(const char *name, int create) {
 123     Client *client;
 124
 125     assert(server);
 126     assert(name);
 127
 128     for (client = server->clients; client; client = client->clients_next)
 129         if (!strcmp(name, client->name))
 130             return client;
 131
 132     if (!create)
 133         return NULL;
 134
 135     if (server->n_clients >= CLIENTS_MAX)
 136         return NULL;
 137
 138     /* If not existant yet, create a new entry */
 139     client = avahi_new(Client, 1);
 140     client->id = server->current_id++;
 141     client->name = avahi_strdup(name);
 142     client->current_id = 0;
 143     client->n_objects = 0;
 144
 145     AVAHI_LLIST_HEAD_INIT(EntryGroupInfo, client->entry_groups);
 146     AVAHI_LLIST_HEAD_INIT(SyncHostNameResolverInfo, client->sync_host_name_resolvers);
 147     AVAHI_LLIST_HEAD_INIT(AsyncHostNameResolverInfo, client->async_host_name_resolvers);
 148     AVAHI_LLIST_HEAD_INIT(SyncAddressResolverInfo, client->sync_address_resolvers);
 149     AVAHI_LLIST_HEAD_INIT(AsyncAddressResolverInfo, client->async_address_resolvers);
 150     AVAHI_LLIST_HEAD_INIT(DomainBrowserInfo, client->domain_browsers);
 151     AVAHI_LLIST_HEAD_INIT(ServiceTypeBrowserInfo, client->service_type_browsers);
 152     AVAHI_LLIST_HEAD_INIT(ServiceBrowserInfo, client->service_browsers);
 153     AVAHI_LLIST_HEAD_INIT(SyncServiceResolverInfo, client->sync_service_resolvers);
 154     AVAHI_LLIST_HEAD_INIT(AsyncServiceResolverInfo, client->async_service_resolvers);
 155     AVAHI_LLIST_HEAD_INIT(RecordBrowserInfo, client->record_browsers);
 156
 157     AVAHI_LLIST_PREPEND(Client, clients, server->clients, client);
 158
 159     server->n_clients++;
 160     assert(server->n_clients > 0);
 161
 162     return client;
 163 }
 164
 165 static void reconnect_callback(AvahiTimeout *t, AVAHI_GCC_UNUSED void *userdata) {
 166     assert(!server->bus);
 167
 168     if (dbus_connect() < 0) {
 169         struct timeval tv;
 170         avahi_log_debug(__FILE__": Connection failed, retrying in %ims...", RECONNECT_MSEC);
 171         avahi_elapse_time(&tv, RECONNECT_MSEC, 0);
 172         server->poll_api->timeout_update(t, &tv);
 173     } else {
 174         avahi_log_debug(__FILE__": Successfully reconnected.");
 175         server->poll_api->timeout_update(t, NULL);
 176     }
 177 }
 178
 179 static DBusHandlerResult msg_signal_filter_impl(AVAHI_GCC_UNUSED DBusConnection *c, DBusMessage *m, AVAHI_GCC_UNUSED void *userdata) {
 180     DBusError error;
 181
 182     dbus_error_init(&error);
 183
 184 /*     avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s", */
 185 /*                     dbus_message_get_interface(m), */
 186 /*                     dbus_message_get_path(m), */
 187 /*                     dbus_message_get_member(m)); */
 188
 189     if (dbus_message_is_signal(m, DBUS_INTERFACE_LOCAL, "Disconnected")) {
 190         struct timeval tv;
 191
 192         if (server->reconnect) {
 193             avahi_log_warn("Disconnnected from D-BUS, trying to reconnect in %ims...", RECONNECT_MSEC);
 194
 195             dbus_disconnect();
 196
 197             avahi_elapse_time(&tv, RECONNECT_MSEC, 0);
 198
 199             if (server->reconnect_timeout)
 200                 server->poll_api->timeout_update(server->reconnect_timeout, &tv);
 201             else
 202                 server->reconnect_timeout = server->poll_api->timeout_new(server->poll_api, &tv, reconnect_callback, NULL);
 203         } else {
 204             avahi_log_warn("Disconnnected from D-BUS, exiting.");
 205             raise(SIGQUIT);
 206         }
 207
 208         return DBUS_HANDLER_RESULT_HANDLED;
 209
 210     } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameAcquired")) {
 211         char *name;
 212
 213         if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID)) {
 214             avahi_log_warn("Error parsing NameAcquired message");
 215             goto fail;
 216         }
 217
 218 /*         avahi_log_info(__FILE__": name acquired (%s)", name); */
 219         return DBUS_HANDLER_RESULT_HANDLED;
 220
 221     } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
 222         char *name, *old, *new;
 223
 224         if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &old, DBUS_TYPE_STRING, &new, DBUS_TYPE_INVALID)) {
 225             avahi_log_warn("Error parsing NameOwnerChanged message");
 226             goto fail;
 227         }
 228
 229         if (!*new) {
 230             Client *client;
 231
 232             if ((client = client_get(name, FALSE))) {
 233                 avahi_log_debug(__FILE__": client %s vanished.", name);
 234                 client_free(client);
 235             }
 236         }
 237     }
 238
 239 fail:
 240     if (dbus_error_is_set(&error))
 241         dbus_error_free(&error);
 242
 243     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 244 }
 245
 246 static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, AVAHI_GCC_UNUSED void *userdata) {
 247     DBusError error;
 248
 249     dbus_error_init(&error);
 250
 251     avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s",
 252                     dbus_message_get_interface(m),
 253                     dbus_message_get_path(m),
 254                     dbus_message_get_member(m));
 255
 256     if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
 257         return avahi_dbus_handle_introspect(c, m, "Server.introspect");
 258
 259     else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostName")) {
 260
 261         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 262             avahi_log_warn("Error parsing Server::GetHostName message");
 263             goto fail;
 264         }
 265
 266         return avahi_dbus_respond_string(c, m, avahi_server_get_host_name(avahi_server));
 267
 268     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetDomainName")) {
 269
 270         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 271             avahi_log_warn("Error parsing Server::GetDomainName message");
 272             goto fail;
 273         }
 274
 275         return avahi_dbus_respond_string(c, m, avahi_server_get_domain_name(avahi_server));
 276
 277     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostNameFqdn")) {
 278
 279         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
 280             avahi_log_warn("Error parsing Server::GetHostNameFqdn message");
 281             goto fail;
 282         }
 283
 284         return avahi_dbus_respond_string(c, m, avahi_server_get_host_name_fqdn(avahi_server));
 285
 286     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "IsNSSSupportAvailable")) {
 287         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
 288             avahi_log_warn("Error parsing Server::IsNSSSupportAvailable message");
 289             goto fail;
 290         }
 291
 292         return avahi_dbus_respond_boolean(c, m, nss_support);
 293
 294     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")) {
 295
 296         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
 297             avahi_log_warn("Error parsing Server::GetVersionString message");
 298             goto fail;
 299         }
 300
 301         return avahi_dbus_respond_string(c, m, PACKAGE_STRING);
 302
 303     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetAPIVersion")) {
 304
 305         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
 306             avahi_log_warn("Error parsing Server::GetAPIVersion message");
 307             goto fail;
 308         }
 309
 310         return avahi_dbus_respond_uint32(c, m, AVAHI_DBUS_API_VERSION);
 311
 312     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetState")) {
 313         AvahiServerState state;
 314
 315         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
 316             avahi_log_warn("Error parsing Server::GetState message");
 317             goto fail;
 318         }
 319
 320         state = avahi_server_get_state(avahi_server);
 321         return avahi_dbus_respond_int32(c, m, (int32_t) state);
 322
 323     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetLocalServiceCookie")) {
 324
 325         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
 326             avahi_log_warn("Error parsing Server::GetLocalServiceCookie message");
 327             goto fail;
 328         }
 329
 330         return avahi_dbus_respond_uint32(c, m, avahi_server_get_local_service_cookie(avahi_server));
 331
 332     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetNetworkInterfaceNameByIndex")) {
 333         int32_t idx;
 334         int fd;
 335         char name[IF_NAMESIZE];
 336
 337
 338         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INT32, &idx, DBUS_TYPE_INVALID))) {
 339             avahi_log_warn("Error parsing Server::GetNetworkInterfaceNameByIndex message");
 340             goto fail;
 341         }
 342
 343 #ifdef VALGRIND_WORKAROUND
 344         return respond_string(c, m, "blah");
 345 #else
 346
 347         if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
 348             if ((fd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
 349                 char txt[256];
 350                 snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
 351                 return avahi_dbus_respond_error(c, m, AVAHI_ERR_OS, txt);
 352             }
 353
 354         if ((!if_indextoname(idx, name))) {
 355             char txt[256];
 356             snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
 357             close(fd);
 358             return avahi_dbus_respond_error(c, m, AVAHI_ERR_OS, txt);
 359         }
 360
 361         close(fd);
 362
 363         return avahi_dbus_respond_string(c, m, name);
 364 #endif
 365
 366     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetNetworkInterfaceIndexByName")) {
 367         char *n;
 368         int fd;
 369         int32_t idx;
 370
 371         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n) {
 372             avahi_log_warn("Error parsing Server::GetNetworkInterfaceIndexByName message");
 373             goto fail;
 374         }
 375
 376 #ifdef VALGRIND_WORKAROUND
 377         return respond_int32(c, m, 1);
 378 #else
 379         if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
 380             if ((fd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
 381                 char txt[256];
 382                 snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
 383                 return avahi_dbus_respond_error(c, m, AVAHI_ERR_OS, txt);
 384             }
 385
 386         if (!(idx = if_nametoindex(n))) {
 387             char txt[256];
 388             snprintf(txt, sizeof(txt), "OS Error: %s", strerror(errno));
 389             close(fd);
 390             return avahi_dbus_respond_error(c, m, AVAHI_ERR_OS, txt);
 391         }
 392
 393         close(fd);
 394
 395         return avahi_dbus_respond_int32(c, m, idx);
 396 #endif
 397
 398     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetAlternativeHostName")) {
 399         char *n, * t;
 400
 401         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n) {
 402             avahi_log_warn("Error parsing Server::GetAlternativeHostName message");
 403             goto fail;
 404         }
 405
 406         t = avahi_alternative_host_name(n);
 407         avahi_dbus_respond_string(c, m, t);
 408         avahi_free(t);
 409
 410         return DBUS_HANDLER_RESULT_HANDLED;
 411
 412     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetAlternativeServiceName")) {
 413         char *n, *t;
 414
 415         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n) {
 416             avahi_log_warn("Error parsing Server::GetAlternativeServiceName message");
 417             goto fail;
 418         }
 419
 420         t = avahi_alternative_service_name(n);
 421         avahi_dbus_respond_string(c, m, t);
 422         avahi_free(t);
 423
 424         return DBUS_HANDLER_RESULT_HANDLED;
 425
 426     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "EntryGroupNew")) {
 427         Client *client;
 428         EntryGroupInfo *i;
 429         static const DBusObjectPathVTable vtable = {
 430             NULL,
 431             avahi_dbus_msg_entry_group_impl,
 432             NULL,
 433             NULL,
 434             NULL,
 435             NULL
 436         };
 437
 438         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
 439             avahi_log_warn("Error parsing Server::EntryGroupNew message");
 440             goto fail;
 441         }
 442
 443         if (disable_user_service_publishing)
 444             return avahi_dbus_respond_error(c, m, AVAHI_ERR_NOT_PERMITTED, NULL);
 445
 446         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 447             avahi_log_warn("Too many clients, client request failed.");
 448             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 449         }
 450
 451         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 452             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 453             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 454         }
 455
 456         i = avahi_new(EntryGroupInfo, 1);
 457         i->id = ++client->current_id;
 458         i->client = client;
 459         i->path = avahi_strdup_printf("/Client%u/EntryGroup%u", client->id, i->id);
 460         i->n_entries = 0;
 461         AVAHI_LLIST_PREPEND(EntryGroupInfo, entry_groups, client->entry_groups, i);
 462         client->n_objects++;
 463
 464         if (!(i->entry_group = avahi_s_entry_group_new(avahi_server, avahi_dbus_entry_group_callback, i))) {
 465             avahi_dbus_entry_group_free(i);
 466             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 467         }
 468
 469         dbus_connection_register_object_path(c, i->path, &vtable, i);
 470         return avahi_dbus_respond_path(c, m, i->path);
 471
 472     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveHostName")) {
 473         Client *client;
 474         int32_t interface, protocol, aprotocol;
 475         uint32_t flags;
 476         char *name;
 477         SyncHostNameResolverInfo *i;
 478
 479         if (!dbus_message_get_args(
 480                 m, &error,
 481                 DBUS_TYPE_INT32, &interface,
 482                 DBUS_TYPE_INT32, &protocol,
 483                 DBUS_TYPE_STRING, &name,
 484                 DBUS_TYPE_INT32, &aprotocol,
 485                 DBUS_TYPE_UINT32, &flags,
 486                 DBUS_TYPE_INVALID) || !name) {
 487             avahi_log_warn("Error parsing Server::ResolveHostName message");
 488             goto fail;
 489         }
 490
 491         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 492             avahi_log_warn("Too many clients, client request failed.");
 493             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 494         }
 495
 496         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 497             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 498             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 499         }
 500
 501         i = avahi_new(SyncHostNameResolverInfo, 1);
 502         i->client = client;
 503         i->message = dbus_message_ref(m);
 504         AVAHI_LLIST_PREPEND(SyncHostNameResolverInfo, sync_host_name_resolvers, client->sync_host_name_resolvers, i);
 505         client->n_objects++;
 506
 507         if (!(i->host_name_resolver = avahi_s_host_name_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, (AvahiProtocol) aprotocol, (AvahiLookupFlags) flags, avahi_dbus_sync_host_name_resolver_callback, i))) {
 508             avahi_dbus_sync_host_name_resolver_free(i);
 509             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 510         }
 511
 512         return DBUS_HANDLER_RESULT_HANDLED;
 513
 514     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveAddress")) {
 515         Client *client;
 516         int32_t interface, protocol;
 517         uint32_t flags;
 518         char *address;
 519         SyncAddressResolverInfo *i;
 520         AvahiAddress a;
 521
 522         if (!dbus_message_get_args(
 523                 m, &error,
 524                 DBUS_TYPE_INT32, &interface,
 525                 DBUS_TYPE_INT32, &protocol,
 526                 DBUS_TYPE_STRING, &address,
 527                 DBUS_TYPE_UINT32, &flags,
 528                 DBUS_TYPE_INVALID) || !address) {
 529             avahi_log_warn("Error parsing Server::ResolveAddress message");
 530             goto fail;
 531         }
 532
 533         if (!avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))
 534             return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
 535
 536         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 537             avahi_log_warn("Too many clients, client request failed.");
 538             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 539         }
 540
 541         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 542             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 543             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 544         }
 545
 546         i = avahi_new(SyncAddressResolverInfo, 1);
 547         i->client = client;
 548         i->message = dbus_message_ref(m);
 549         AVAHI_LLIST_PREPEND(SyncAddressResolverInfo, sync_address_resolvers, client->sync_address_resolvers, i);
 550         client->n_objects++;
 551
 552         if (!(i->address_resolver = avahi_s_address_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, &a, (AvahiLookupFlags) flags, avahi_dbus_sync_address_resolver_callback, i))) {
 553             avahi_dbus_sync_address_resolver_free(i);
 554             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 555         }
 556
 557         return DBUS_HANDLER_RESULT_HANDLED;
 558
 559     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "DomainBrowserNew")) {
 560         Client *client;
 561         DomainBrowserInfo *i;
 562         static const DBusObjectPathVTable vtable = {
 563             NULL,
 564             avahi_dbus_msg_domain_browser_impl,
 565             NULL,
 566             NULL,
 567             NULL,
 568             NULL
 569         };
 570         int32_t interface, protocol, type;
 571         uint32_t flags;
 572         char *domain;
 573
 574         if (!dbus_message_get_args(
 575                 m, &error,
 576                 DBUS_TYPE_INT32, &interface,
 577                 DBUS_TYPE_INT32, &protocol,
 578                 DBUS_TYPE_STRING, &domain,
 579                 DBUS_TYPE_INT32, &type,
 580                 DBUS_TYPE_UINT32, &flags,
 581                 DBUS_TYPE_INVALID) || type < 0 || type >= AVAHI_DOMAIN_BROWSER_MAX) {
 582             avahi_log_warn("Error parsing Server::DomainBrowserNew message");
 583             goto fail;
 584         }
 585
 586         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 587             avahi_log_warn("Too many clients, client request failed.");
 588             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 589         }
 590
 591         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 592             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 593             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 594         }
 595
 596         if (!*domain)
 597             domain = NULL;
 598
 599         i = avahi_new(DomainBrowserInfo, 1);
 600         i->id = ++client->current_id;
 601         i->client = client;
 602         i->path = avahi_strdup_printf("/Client%u/DomainBrowser%u", client->id, i->id);
 603         AVAHI_LLIST_PREPEND(DomainBrowserInfo, domain_browsers, client->domain_browsers, i);
 604         client->n_objects++;
 605
 606         if (!(i->domain_browser = avahi_s_domain_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, (AvahiDomainBrowserType) type, (AvahiLookupFlags) flags, avahi_dbus_domain_browser_callback, i))) {
 607             avahi_dbus_domain_browser_free(i);
 608             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 609         }
 610
 611         dbus_connection_register_object_path(c, i->path, &vtable, i);
 612         return avahi_dbus_respond_path(c, m, i->path);
 613
 614     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceTypeBrowserNew")) {
 615         Client *client;
 616         ServiceTypeBrowserInfo *i;
 617         static const DBusObjectPathVTable vtable = {
 618             NULL,
 619             avahi_dbus_msg_service_type_browser_impl,
 620             NULL,
 621             NULL,
 622             NULL,
 623             NULL
 624         };
 625         int32_t interface, protocol;
 626         uint32_t flags;
 627         char *domain;
 628
 629         if (!dbus_message_get_args(
 630                 m, &error,
 631                 DBUS_TYPE_INT32, &interface,
 632                 DBUS_TYPE_INT32, &protocol,
 633                 DBUS_TYPE_STRING, &domain,
 634                 DBUS_TYPE_UINT32, &flags,
 635                 DBUS_TYPE_INVALID)) {
 636             avahi_log_warn("Error parsing Server::ServiceTypeBrowserNew message");
 637             goto fail;
 638         }
 639
 640         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 641             avahi_log_warn("Too many clients, client request failed.");
 642             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 643         }
 644
 645         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 646             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 647             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 648         }
 649
 650         if (!*domain)
 651             domain = NULL;
 652
 653         i = avahi_new(ServiceTypeBrowserInfo, 1);
 654         i->id = ++client->current_id;
 655         i->client = client;
 656         i->path = avahi_strdup_printf("/Client%u/ServiceTypeBrowser%u", client->id, i->id);
 657         AVAHI_LLIST_PREPEND(ServiceTypeBrowserInfo, service_type_browsers, client->service_type_browsers, i);
 658         client->n_objects++;
 659
 660         if (!(i->service_type_browser = avahi_s_service_type_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, (AvahiLookupFlags) flags, avahi_dbus_service_type_browser_callback, i))) {
 661             avahi_dbus_service_type_browser_free(i);
 662             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 663         }
 664
 665         dbus_connection_register_object_path(c, i->path, &vtable, i);
 666         return avahi_dbus_respond_path(c, m, i->path);
 667
 668     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceBrowserNew")) {
 669         Client *client;
 670         ServiceBrowserInfo *i;
 671         static const DBusObjectPathVTable vtable = {
 672             NULL,
 673             avahi_dbus_msg_service_browser_impl,
 674             NULL,
 675             NULL,
 676             NULL,
 677             NULL
 678         };
 679         int32_t interface, protocol;
 680         uint32_t flags;
 681         char *domain, *type;
 682
 683         if (!dbus_message_get_args(
 684                 m, &error,
 685                 DBUS_TYPE_INT32, &interface,
 686                 DBUS_TYPE_INT32, &protocol,
 687                 DBUS_TYPE_STRING, &type,
 688                 DBUS_TYPE_STRING, &domain,
 689                 DBUS_TYPE_UINT32, &flags,
 690                 DBUS_TYPE_INVALID) || !type) {
 691             avahi_log_warn("Error parsing Server::ServiceBrowserNew message");
 692             goto fail;
 693         }
 694
 695         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 696             avahi_log_warn("Too many clients, client request failed.");
 697             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 698         }
 699
 700         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 701             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 702             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 703         }
 704
 705         if (!*domain)
 706             domain = NULL;
 707
 708         i = avahi_new(ServiceBrowserInfo, 1);
 709         i->id = ++client->current_id;
 710         i->client = client;
 711         i->path = avahi_strdup_printf("/Client%u/ServiceBrowser%u", client->id, i->id);
 712         AVAHI_LLIST_PREPEND(ServiceBrowserInfo, service_browsers, client->service_browsers, i);
 713         client->n_objects++;
 714
 715         if (!(i->service_browser = avahi_s_service_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, type, domain, (AvahiLookupFlags) flags, avahi_dbus_service_browser_callback, i))) {
 716             avahi_dbus_service_browser_free(i);
 717             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 718         }
 719
 720         dbus_connection_register_object_path(c, i->path, &vtable, i);
 721         return avahi_dbus_respond_path(c, m, i->path);
 722
 723     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveService")) {
 724         Client *client;
 725         int32_t interface, protocol, aprotocol;
 726         uint32_t flags;
 727         char *name, *type, *domain;
 728         SyncServiceResolverInfo *i;
 729
 730         if (!dbus_message_get_args(
 731                 m, &error,
 732                 DBUS_TYPE_INT32, &interface,
 733                 DBUS_TYPE_INT32, &protocol,
 734                 DBUS_TYPE_STRING, &name,
 735                 DBUS_TYPE_STRING, &type,
 736                 DBUS_TYPE_STRING, &domain,
 737                 DBUS_TYPE_INT32, &aprotocol,
 738                 DBUS_TYPE_UINT32, &flags,
 739                 DBUS_TYPE_INVALID) || !type) {
 740             avahi_log_warn("Error parsing Server::ResolveService message");
 741             goto fail;
 742         }
 743
 744         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 745             avahi_log_warn("Too many clients, client request failed.");
 746             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 747         }
 748
 749         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 750             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 751             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 752         }
 753
 754         if (!*domain)
 755             domain = NULL;
 756
 757         if (!*name)
 758             name = NULL;
 759
 760         i = avahi_new(SyncServiceResolverInfo, 1);
 761         i->client = client;
 762         i->message = dbus_message_ref(m);
 763         AVAHI_LLIST_PREPEND(SyncServiceResolverInfo, sync_service_resolvers, client->sync_service_resolvers, i);
 764         client->n_objects++;
 765
 766         if (!(i->service_resolver = avahi_s_service_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, (AvahiProtocol) aprotocol, (AvahiLookupFlags) flags, avahi_dbus_sync_service_resolver_callback, i))) {
 767             avahi_dbus_sync_service_resolver_free(i);
 768             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 769         }
 770
 771         return DBUS_HANDLER_RESULT_HANDLED;
 772
 773     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceResolverNew")) {
 774         Client *client;
 775         int32_t interface, protocol, aprotocol;
 776         uint32_t flags;
 777         char *name, *type, *domain;
 778         AsyncServiceResolverInfo *i;
 779         static const DBusObjectPathVTable vtable = {
 780             NULL,
 781             avahi_dbus_msg_async_service_resolver_impl,
 782             NULL,
 783             NULL,
 784             NULL,
 785             NULL
 786         };
 787
 788         if (!dbus_message_get_args(
 789                 m, &error,
 790                 DBUS_TYPE_INT32, &interface,
 791                 DBUS_TYPE_INT32, &protocol,
 792                 DBUS_TYPE_STRING, &name,
 793                 DBUS_TYPE_STRING, &type,
 794                 DBUS_TYPE_STRING, &domain,
 795                 DBUS_TYPE_INT32, &aprotocol,
 796                 DBUS_TYPE_UINT32, &flags,
 797                 DBUS_TYPE_INVALID) || !type) {
 798             avahi_log_warn("Error parsing Server::ServiceResolverNew message");
 799             goto fail;
 800         }
 801
 802         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 803             avahi_log_warn(__FILE__": Too many clients, client request failed.");
 804             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 805         }
 806
 807         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 808             avahi_log_warn(__FILE__": Too many objects for client '%s', client request failed.", client->name);
 809             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 810         }
 811
 812         if (!*domain)
 813             domain = NULL;
 814
 815         if (!*name)
 816             name = NULL;
 817
 818         i = avahi_new(AsyncServiceResolverInfo, 1);
 819         i->id = ++client->current_id;
 820         i->client = client;
 821         i->path = avahi_strdup_printf("/Client%u/ServiceResolver%u", client->id, i->id);
 822         AVAHI_LLIST_PREPEND(AsyncServiceResolverInfo, async_service_resolvers, client->async_service_resolvers, i);
 823         client->n_objects++;
 824
 825         if (!(i->service_resolver = avahi_s_service_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, (AvahiProtocol) aprotocol, (AvahiLookupFlags) flags, avahi_dbus_async_service_resolver_callback, i))) {
 826             avahi_dbus_async_service_resolver_free(i);
 827             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 828         }
 829
 830 /*         avahi_log_debug(__FILE__": [%s], new service resolver for <%s.%s.%s>", i->path, name, type, domain); */
 831
 832         dbus_connection_register_object_path(c, i->path, &vtable, i);
 833         return avahi_dbus_respond_path(c, m, i->path);
 834
 835     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "HostNameResolverNew")) {
 836         Client *client;
 837         int32_t interface, protocol, aprotocol;
 838         uint32_t flags;
 839         char *name;
 840         AsyncHostNameResolverInfo *i;
 841         static const DBusObjectPathVTable vtable = {
 842             NULL,
 843             avahi_dbus_msg_async_host_name_resolver_impl,
 844             NULL,
 845             NULL,
 846             NULL,
 847             NULL
 848         };
 849
 850         if (!dbus_message_get_args(
 851                 m, &error,
 852                 DBUS_TYPE_INT32, &interface,
 853                 DBUS_TYPE_INT32, &protocol,
 854                 DBUS_TYPE_STRING, &name,
 855                 DBUS_TYPE_INT32, &aprotocol,
 856                 DBUS_TYPE_UINT32, &flags,
 857                 DBUS_TYPE_INVALID) || !name) {
 858             avahi_log_warn("Error parsing Server::HostNameResolverNew message");
 859             goto fail;
 860         }
 861
 862         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 863             avahi_log_warn(__FILE__": Too many clients, client request failed.");
 864             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 865         }
 866
 867         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 868             avahi_log_warn(__FILE__": Too many objects for client '%s', client request failed.", client->name);
 869             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 870         }
 871
 872         i = avahi_new(AsyncHostNameResolverInfo, 1);
 873         i->id = ++client->current_id;
 874         i->client = client;
 875         i->path = avahi_strdup_printf("/Client%u/HostNameResolver%u", client->id, i->id);
 876         AVAHI_LLIST_PREPEND(AsyncHostNameResolverInfo, async_host_name_resolvers, client->async_host_name_resolvers, i);
 877         client->n_objects++;
 878
 879         if (!(i->host_name_resolver = avahi_s_host_name_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, aprotocol, (AvahiLookupFlags) flags, avahi_dbus_async_host_name_resolver_callback, i))) {
 880             avahi_dbus_async_host_name_resolver_free(i);
 881             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 882         }
 883
 884         dbus_connection_register_object_path(c, i->path, &vtable, i);
 885         return avahi_dbus_respond_path(c, m, i->path);
 886
 887     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "AddressResolverNew")) {
 888         Client *client;
 889         int32_t interface, protocol;
 890         uint32_t flags;
 891         char *address;
 892         AsyncAddressResolverInfo *i;
 893         AvahiAddress a;
 894         static const DBusObjectPathVTable vtable = {
 895             NULL,
 896             avahi_dbus_msg_async_address_resolver_impl,
 897             NULL,
 898             NULL,
 899             NULL,
 900             NULL
 901         };
 902
 903         if (!dbus_message_get_args(
 904                 m, &error,
 905                 DBUS_TYPE_INT32, &interface,
 906                 DBUS_TYPE_INT32, &protocol,
 907                 DBUS_TYPE_STRING, &address,
 908                 DBUS_TYPE_UINT32, &flags,
 909                 DBUS_TYPE_INVALID) || !address) {
 910             avahi_log_warn("Error parsing Server::AddressResolverNew message");
 911             goto fail;
 912         }
 913
 914         if (!avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))
 915             return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
 916
 917         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 918             avahi_log_warn(__FILE__": Too many clients, client request failed.");
 919             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 920         }
 921
 922         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 923             avahi_log_warn(__FILE__": Too many objects for client '%s', client request failed.", client->name);
 924             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 925         }
 926
 927         i = avahi_new(AsyncAddressResolverInfo, 1);
 928         i->id = ++client->current_id;
 929         i->client = client;
 930         i->path = avahi_strdup_printf("/Client%u/AddressResolver%u", client->id, i->id);
 931         AVAHI_LLIST_PREPEND(AsyncAddressResolverInfo, async_address_resolvers, client->async_address_resolvers, i);
 932         client->n_objects++;
 933
 934         if (!(i->address_resolver = avahi_s_address_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, &a, (AvahiLookupFlags) flags, avahi_dbus_async_address_resolver_callback, i))) {
 935             avahi_dbus_async_address_resolver_free(i);
 936             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 937         }
 938
 939         dbus_connection_register_object_path(c, i->path, &vtable, i);
 940         return avahi_dbus_respond_path(c, m, i->path);
 941
 942     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "RecordBrowserNew")) {
 943         Client *client;
 944         RecordBrowserInfo *i;
 945         static const DBusObjectPathVTable vtable = {
 946             NULL,
 947             avahi_dbus_msg_record_browser_impl,
 948             NULL,
 949             NULL,
 950             NULL,
 951             NULL
 952         };
 953         int32_t interface, protocol;
 954         uint32_t flags;
 955         char *name;
 956         uint16_t type, clazz;
 957         AvahiKey *key;
 958
 959         if (!dbus_message_get_args(
 960                 m, &error,
 961                 DBUS_TYPE_INT32, &interface,
 962                 DBUS_TYPE_INT32, &protocol,
 963                 DBUS_TYPE_STRING, &name,
 964                 DBUS_TYPE_UINT16, &clazz,
 965                 DBUS_TYPE_UINT16, &type,
 966                 DBUS_TYPE_UINT32, &flags,
 967                 DBUS_TYPE_INVALID) || !name) {
 968             avahi_log_warn("Error parsing Server::RecordBrowserNew message");
 969             goto fail;
 970         }
 971
 972         if (!avahi_is_valid_domain_name(name))
 973             return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_DOMAIN_NAME, NULL);
 974
 975         if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
 976             avahi_log_warn("Too many clients, client request failed.");
 977             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_CLIENTS, NULL);
 978         }
 979
 980         if (client->n_objects >= OBJECTS_PER_CLIENT_MAX) {
 981             avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
 982             return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_OBJECTS, NULL);
 983         }
 984
 985         i = avahi_new(RecordBrowserInfo, 1);
 986         i->id = ++client->current_id;
 987         i->client = client;
 988         i->path = avahi_strdup_printf("/Client%u/RecordBrowser%u", client->id, i->id);
 989         AVAHI_LLIST_PREPEND(RecordBrowserInfo, record_browsers, client->record_browsers, i);
 990         client->n_objects++;
 991
 992         key = avahi_key_new(name, clazz, type);
 993         assert(key);
 994
 995         if (!(i->record_browser = avahi_s_record_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, key, (AvahiLookupFlags) flags, avahi_dbus_record_browser_callback, i))) {
 996             avahi_key_unref(key);
 997             avahi_dbus_record_browser_free(i);
 998             return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
 999         }
1000
1001         avahi_key_unref(key);
1002
1003         dbus_connection_register_object_path(c, i->path, &vtable, i);
1004         return avahi_dbus_respond_path(c, m, i->path);
1005     }
1006
1007     avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
1008
1009 fail:
1010     if (dbus_error_is_set(&error))
1011         dbus_error_free(&error);
1012
1013     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1014 }
1015
1016 void dbus_protocol_server_state_changed(AvahiServerState state) {
1017     DBusMessage *m;
1018     int32_t t;
1019     const char *e;
1020
1021     if (!server || !server->bus)
1022         return;
1023
1024     m = dbus_message_new_signal(AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "StateChanged");
1025     t = (int32_t) state;
1026
1027     if (state == AVAHI_SERVER_COLLISION)
1028         e = AVAHI_DBUS_ERR_COLLISION;
1029     else if (state == AVAHI_SERVER_FAILURE)
1030         e = avahi_error_number_to_dbus(avahi_server_errno(avahi_server));
1031     else
1032         e = AVAHI_DBUS_ERR_OK;
1033
1034     dbus_message_append_args(m, DBUS_TYPE_INT32, &t, DBUS_TYPE_STRING, &e, DBUS_TYPE_INVALID);
1035     dbus_connection_send(server->bus, m, NULL);
1036     dbus_message_unref(m);
1037 }
1038
1039 static int dbus_connect(void) {
1040     DBusError error;
1041
1042     static const DBusObjectPathVTable server_vtable = {
1043         NULL,
1044         msg_server_impl,
1045         NULL,
1046         NULL,
1047         NULL,
1048         NULL
1049     };
1050
1051     assert(server);
1052     assert(!server->bus);
1053
1054     dbus_error_init(&error);
1055
1056     if (!(server->bus = dbus_bus_get(DBUS_BUS_SYSTEM, &error))) {
1057         assert(dbus_error_is_set(&error));
1058         avahi_log_error("dbus_bus_get(): %s", error.message);
1059         goto fail;
1060     }
1061     if (avahi_dbus_connection_glue(server->bus, server->poll_api) < 0) {
1062         avahi_log_error("avahi_dbus_connection_glue() failed");
1063         goto fail;
1064     }
1065
1066     dbus_connection_set_exit_on_disconnect(server->bus, FALSE);
1067
1068     if (dbus_bus_request_name(
1069             server->bus,
1070             AVAHI_DBUS_NAME,
1071 #if (DBUS_VERSION_MAJOR == 0) && (DBUS_VERSION_MINOR >= 60)
1072             DBUS_NAME_FLAG_DO_NOT_QUEUE,
1073 #else
1074             DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT,
1075 #endif
1076             &error) != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
1077         if (dbus_error_is_set(&error)) {
1078             avahi_log_error("dbus_bus_request_name(): %s", error.message);
1079             goto fail;
1080         }
1081
1082         avahi_log_error("Failed to acquire DBUS name '"AVAHI_DBUS_NAME"'");
1083         goto fail;
1084     }
1085
1086     if (!(dbus_connection_add_filter(server->bus, msg_signal_filter_impl, (void*) server->poll_api, NULL))) {
1087         avahi_log_error("dbus_connection_add_filter() failed");
1088         goto fail;
1089     }
1090
1091     dbus_bus_add_match(server->bus, "type='signal',""interface='" DBUS_INTERFACE_DBUS  "'", &error);
1092
1093     if (dbus_error_is_set(&error)) {
1094         avahi_log_error("dbus_bus_add_match(): %s", error.message);
1095         goto fail;
1096     }
1097
1098     if (!(dbus_connection_register_object_path(server->bus, AVAHI_DBUS_PATH_SERVER, &server_vtable, NULL))) {
1099         avahi_log_error("dbus_connection_register_object_path() failed");
1100         goto fail;
1101     }
1102
1103     return 0;
1104 fail:
1105
1106     if (dbus_error_is_set(&error))
1107         dbus_error_free(&error);
1108
1109     if (server->bus) {
1110         dbus_connection_disconnect(server->bus);
1111         dbus_connection_unref(server->bus);
1112         server->bus = NULL;
1113     }
1114
1115     return -1;
1116 }
1117
1118 static void dbus_disconnect(void) {
1119     assert(server);
1120
1121     while (server->clients)
1122         client_free(server->clients);
1123
1124     assert(server->n_clients == 0);
1125
1126     if (server->bus) {
1127         dbus_connection_disconnect(server->bus);
1128         dbus_connection_unref(server->bus);
1129         server->bus = NULL;
1130     }
1131 }
1132
1133 int dbus_protocol_setup(const AvahiPoll *poll_api, int _disable_user_service_publishing, int force) {
1134
1135     disable_user_service_publishing = _disable_user_service_publishing;
1136
1137     server = avahi_new(Server, 1);
1138     AVAHI_LLIST_HEAD_INIT(Clients, server->clients);
1139     server->current_id = 0;
1140     server->n_clients = 0;
1141     server->bus = NULL;
1142     server->poll_api = poll_api;
1143     server->reconnect_timeout = NULL;
1144     server->reconnect = force;
1145
1146     if (dbus_connect() < 0) {
1147         struct timeval tv;
1148
1149         if (!force)
1150             goto fail;
1151
1152         avahi_log_warn("WARNING: Failed to contact D-BUS daemon, retrying in %ims.", RECONNECT_MSEC);
1153
1154         avahi_elapse_time(&tv, RECONNECT_MSEC, 0);
1155         server->reconnect_timeout = server->poll_api->timeout_new(server->poll_api, &tv, reconnect_callback, NULL);
1156     }
1157
1158     return 0;
1159
1160 fail:
1161     if (server->bus) {
1162         dbus_connection_disconnect(server->bus);
1163         dbus_connection_unref(server->bus);
1164     }
1165
1166     avahi_free(server);
1167     server = NULL;
1168     return -1;
1169 }
1170
1171 void dbus_protocol_shutdown(void) {
1172
1173     if (server) {
1174         dbus_disconnect();
1175
1176         if (server->reconnect_timeout)
1177             server->poll_api->timeout_free(server->reconnect_timeout);
1178
1179         avahi_free(server);
1180         server = NULL;
1181     }
1182 }