4 This file is part of avahi.
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.
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.
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
29 #define DBUS_API_SUBJECT_TO_CHANGE
30 #include <dbus/dbus.h>
31 #include <dbus/dbus-glib-lowlevel.h>
33 #include <avahi-core/llist.h>
34 #include <avahi-core/log.h>
35 #include <avahi-core/core.h>
37 #include "dbus-protocol.h"
40 #define AVAHI_DBUS_NAME "org.freedesktop.Avahi"
41 #define AVAHI_DBUS_INTERFACE_SERVER AVAHI_DBUS_NAME".Server"
42 #define AVAHI_DBUS_PATH_SERVER "/org/freedesktop/Avahi/Server"
43 #define AVAHI_DBUS_INTERFACE_ENTRY_GROUP AVAHI_DBUS_NAME".EntryGroup"
44 #define AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER AVAHI_DBUS_NAME".DomainBrowser"
45 #define AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER AVAHI_DBUS_NAME".ServiceTypeBrowser"
46 #define AVAHI_DBUS_INTERFACE_SERVICE_BROWSER AVAHI_DBUS_NAME".ServiceBrowser"
48 typedef struct Server Server;
49 typedef struct Client Client;
50 typedef struct EntryGroupInfo EntryGroupInfo;
51 typedef struct HostNameResolverInfo HostNameResolverInfo;
52 typedef struct AddressResolverInfo AddressResolverInfo;
53 typedef struct DomainBrowserInfo DomainBrowserInfo;
54 typedef struct ServiceTypeBrowserInfo ServiceTypeBrowserInfo;
55 typedef struct ServiceBrowserInfo ServiceBrowserInfo;
56 typedef struct ServiceResolverInfo ServiceResolverInfo;
58 struct EntryGroupInfo {
61 AvahiEntryGroup *entry_group;
64 AVAHI_LLIST_FIELDS(EntryGroupInfo, entry_groups);
67 struct HostNameResolverInfo {
69 AvahiHostNameResolver *host_name_resolver;
72 AVAHI_LLIST_FIELDS(HostNameResolverInfo, host_name_resolvers);
75 struct AddressResolverInfo {
77 AvahiAddressResolver *address_resolver;
80 AVAHI_LLIST_FIELDS(AddressResolverInfo, address_resolvers);
83 struct DomainBrowserInfo {
86 AvahiDomainBrowser *domain_browser;
89 AVAHI_LLIST_FIELDS(DomainBrowserInfo, domain_browsers);
92 struct ServiceTypeBrowserInfo {
95 AvahiServiceTypeBrowser *service_type_browser;
98 AVAHI_LLIST_FIELDS(ServiceTypeBrowserInfo, service_type_browsers);
101 struct ServiceBrowserInfo {
104 AvahiServiceBrowser *service_browser;
107 AVAHI_LLIST_FIELDS(ServiceBrowserInfo, service_browsers);
110 struct ServiceResolverInfo {
112 AvahiServiceResolver *service_resolver;
113 DBusMessage *message;
115 AVAHI_LLIST_FIELDS(ServiceResolverInfo, service_resolvers);
123 AVAHI_LLIST_FIELDS(Client, clients);
124 AVAHI_LLIST_HEAD(EntryGroupInfo, entry_groups);
125 AVAHI_LLIST_HEAD(HostNameResolverInfo, host_name_resolvers);
126 AVAHI_LLIST_HEAD(AddressResolverInfo, address_resolvers);
127 AVAHI_LLIST_HEAD(DomainBrowserInfo, domain_browsers);
128 AVAHI_LLIST_HEAD(ServiceTypeBrowserInfo, service_type_browsers);
129 AVAHI_LLIST_HEAD(ServiceBrowserInfo, service_browsers);
130 AVAHI_LLIST_HEAD(ServiceResolverInfo, service_resolvers);
135 AVAHI_LLIST_HEAD(Client, clients);
139 static Server *server = NULL;
141 static void entry_group_free(EntryGroupInfo *i) {
145 avahi_entry_group_free(i->entry_group);
146 dbus_connection_unregister_object_path(server->bus, i->path);
148 AVAHI_LLIST_REMOVE(EntryGroupInfo, entry_groups, i->client->entry_groups, i);
152 static void host_name_resolver_free(HostNameResolverInfo *i) {
155 if (i->host_name_resolver)
156 avahi_host_name_resolver_free(i->host_name_resolver);
157 dbus_message_unref(i->message);
158 AVAHI_LLIST_REMOVE(HostNameResolverInfo, host_name_resolvers, i->client->host_name_resolvers, i);
162 static void address_resolver_free(AddressResolverInfo *i) {
165 if (i->address_resolver)
166 avahi_address_resolver_free(i->address_resolver);
167 dbus_message_unref(i->message);
168 AVAHI_LLIST_REMOVE(AddressResolverInfo, address_resolvers, i->client->address_resolvers, i);
172 static void domain_browser_free(DomainBrowserInfo *i) {
175 if (i->domain_browser)
176 avahi_domain_browser_free(i->domain_browser);
177 dbus_connection_unregister_object_path(server->bus, i->path);
179 AVAHI_LLIST_REMOVE(DomainBrowserInfo, domain_browsers, i->client->domain_browsers, i);
183 static void service_type_browser_free(ServiceTypeBrowserInfo *i) {
186 if (i->service_type_browser)
187 avahi_service_type_browser_free(i->service_type_browser);
188 dbus_connection_unregister_object_path(server->bus, i->path);
190 AVAHI_LLIST_REMOVE(ServiceTypeBrowserInfo, service_type_browsers, i->client->service_type_browsers, i);
194 static void service_browser_free(ServiceBrowserInfo *i) {
197 if (i->service_browser)
198 avahi_service_browser_free(i->service_browser);
199 dbus_connection_unregister_object_path(server->bus, i->path);
201 AVAHI_LLIST_REMOVE(ServiceBrowserInfo, service_browsers, i->client->service_browsers, i);
205 static void service_resolver_free(ServiceResolverInfo *i) {
208 if (i->service_resolver)
209 avahi_service_resolver_free(i->service_resolver);
210 dbus_message_unref(i->message);
211 AVAHI_LLIST_REMOVE(ServiceResolverInfo, service_resolvers, i->client->service_resolvers, i);
215 static void client_free(Client *c) {
220 while (c->entry_groups)
221 entry_group_free(c->entry_groups);
223 while (c->host_name_resolvers)
224 host_name_resolver_free(c->host_name_resolvers);
226 while (c->address_resolvers)
227 address_resolver_free(c->address_resolvers);
229 while (c->domain_browsers)
230 domain_browser_free(c->domain_browsers);
232 while (c->service_type_browsers)
233 service_type_browser_free(c->service_type_browsers);
235 while (c->service_browsers)
236 service_browser_free(c->service_browsers);
238 while (c->service_resolvers)
239 service_resolver_free(c->service_resolvers);
242 AVAHI_LLIST_REMOVE(Client, clients, server->clients, c);
246 static Client *client_get(const gchar *name, gboolean create) {
252 for (client = server->clients; client; client = client->clients_next)
253 if (!strcmp(name, client->name))
259 /* If not existant yet, create a new entry */
260 client = g_new(Client, 1);
261 client->id = server->current_id++;
262 client->name = g_strdup(name);
263 client->current_id = 0;
264 AVAHI_LLIST_HEAD_INIT(EntryGroupInfo, client->entry_groups);
265 AVAHI_LLIST_HEAD_INIT(HostNameResolverInfo, client->host_name_resolvers);
266 AVAHI_LLIST_HEAD_INIT(AddressResolverInfo, client->address_resolvers);
267 AVAHI_LLIST_HEAD_INIT(DomainBrowserInfo, client->domain_browsers);
268 AVAHI_LLIST_HEAD_INIT(ServiceTypeBrowserInfo, client->service_type_browsers);
269 AVAHI_LLIST_HEAD_INIT(ServiceBrowserInfo, client->service_browsers);
270 AVAHI_LLIST_HEAD_INIT(ServiceResolverInfo, client->service_resolvers);
272 AVAHI_LLIST_PREPEND(Client, clients, server->clients, client);
276 static DBusHandlerResult respond_error(DBusConnection *c, DBusMessage *m, const gchar *error, const gchar *text) {
279 reply = dbus_message_new_error(m, error, text);
280 dbus_connection_send(c, reply, NULL);
281 dbus_message_unref(reply);
283 return DBUS_HANDLER_RESULT_HANDLED;
286 static DBusHandlerResult respond_string(DBusConnection *c, DBusMessage *m, const gchar *text) {
289 reply = dbus_message_new_method_return(m);
290 dbus_message_append_args(reply, DBUS_TYPE_STRING, &text, DBUS_TYPE_INVALID);
291 dbus_connection_send(c, reply, NULL);
292 dbus_message_unref(reply);
294 return DBUS_HANDLER_RESULT_HANDLED;
297 static DBusHandlerResult respond_ok(DBusConnection *c, DBusMessage *m) {
300 reply = dbus_message_new_method_return(m);
301 dbus_connection_send(c, reply, NULL);
302 dbus_message_unref(reply);
304 return DBUS_HANDLER_RESULT_HANDLED;
307 static DBusHandlerResult respond_path(DBusConnection *c, DBusMessage *m, const gchar *path) {
310 reply = dbus_message_new_method_return(m);
311 dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID);
312 dbus_connection_send(c, reply, NULL);
313 dbus_message_unref(reply);
315 return DBUS_HANDLER_RESULT_HANDLED;
318 static DBusHandlerResult msg_signal_filter_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
319 GMainLoop *loop = userdata;
322 dbus_error_init(&error);
324 /* avahi_log_debug("dbus: interface=%s, path=%s, member=%s", */
325 /* dbus_message_get_interface(m), */
326 /* dbus_message_get_path(m), */
327 /* dbus_message_get_member(m)); */
329 if (dbus_message_is_signal(m, DBUS_INTERFACE_LOCAL, "Disconnected")) {
330 /* No, we shouldn't quit, but until we get somewhere
331 * usefull such that we can restore our state, we will */
332 avahi_log_warn("Disconnnected from d-bus, terminating...");
333 g_main_loop_quit (loop);
334 return DBUS_HANDLER_RESULT_HANDLED;
336 } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameAcquired")) {
339 if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID)) {
340 avahi_log_warn("Error parsing NameAcquired message");
344 /* avahi_log_info("dbus: name acquired (%s)", name); */
345 return DBUS_HANDLER_RESULT_HANDLED;
347 } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
348 gchar *name, *old, *new;
350 if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &old, DBUS_TYPE_STRING, &new, DBUS_TYPE_INVALID)) {
351 avahi_log_warn("Error parsing NameOwnerChanged message");
358 if ((client = client_get(name, FALSE))) {
359 /* avahi_log_info("dbus: client %s vanished", name); */
366 if (dbus_error_is_set(&error))
367 dbus_error_free(&error);
369 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
373 static void entry_group_callback(AvahiServer *s, AvahiEntryGroup *g, AvahiEntryGroupState state, gpointer userdata) {
374 EntryGroupInfo *i = userdata;
382 m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged");
384 dbus_message_append_args(m, DBUS_TYPE_INT32, &t, DBUS_TYPE_INVALID);
385 dbus_message_set_destination(m, i->client->name);
386 dbus_connection_send(server->bus, m, NULL);
387 dbus_message_unref(m);
390 static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
392 EntryGroupInfo *i = userdata;
398 dbus_error_init(&error);
400 avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
401 dbus_message_get_interface(m),
402 dbus_message_get_path(m),
403 dbus_message_get_member(m));
406 if (strcmp(dbus_message_get_sender(m), i->client->name))
407 return respond_error(c, m, DBUS_ERROR_ACCESS_DENIED, NULL);
409 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Free")) {
411 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
412 avahi_log_warn("Error parsing EntryGroup::Free message");
417 return respond_ok(c, m);
419 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Commit")) {
421 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
422 avahi_log_warn("Error parsing EntryGroup::Commit message");
426 avahi_entry_group_commit(i->entry_group);
427 return respond_ok(c, m);
429 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "GetState")) {
433 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
434 avahi_log_warn("Error parsing EntryGroup::GetState message");
438 t = (gint32) avahi_entry_group_get_state(i->entry_group);
439 reply = dbus_message_new_method_return(m);
440 dbus_message_append_args(reply, DBUS_TYPE_INT32, &t, DBUS_TYPE_INVALID);
441 dbus_connection_send(c, reply, NULL);
442 dbus_message_unref(reply);
444 return DBUS_HANDLER_RESULT_HANDLED;
446 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddService")) {
447 gint32 interface, protocol;
448 gchar *type, *name, *domain, *host;
452 AvahiStringList *strlst;
454 if (!dbus_message_get_args(
456 DBUS_TYPE_INT32, &interface,
457 DBUS_TYPE_INT32, &protocol,
458 DBUS_TYPE_STRING, &name,
459 DBUS_TYPE_STRING, &type,
460 DBUS_TYPE_STRING, &domain,
461 DBUS_TYPE_STRING, &host,
462 DBUS_TYPE_UINT16, &port,
463 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, &txt, &txt_len,
464 DBUS_TYPE_INVALID) || !type || !*type || !name || !*name || !port) {
465 avahi_log_warn("Error parsing EntryGroup::AddService message");
469 strlst = avahi_string_list_new_from_array((const gchar**) txt, txt_len);
470 dbus_free_string_array(txt);
472 if (domain && !*domain)
478 if (avahi_server_add_service_strlst(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, host, port, strlst) < 0) {
479 avahi_log_warn("Failed to add service: %s", name);
480 return respond_error(c, m, "org.freedesktop.Avahi.InvalidServiceError", NULL);
482 /* avahi_log_info("Successfully added service: %s", name); */
484 return respond_ok(c, m);
486 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddAddress")) {
487 gint32 interface, protocol;
488 gchar *name, *address;
491 if (!dbus_message_get_args(
493 DBUS_TYPE_INT32, &interface,
494 DBUS_TYPE_INT32, &protocol,
495 DBUS_TYPE_STRING, &name,
496 DBUS_TYPE_STRING, &address,
497 DBUS_TYPE_INVALID) || !name || !*name || !address || !*address) {
498 avahi_log_warn("Error parsing EntryGroup::AddAddress message");
502 if (!(avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))) {
503 avahi_log_warn("Error parsing address data");
504 return respond_error(c, m, "org.freedesktop.Avahi.InvalidAddressError", NULL);
507 if (avahi_server_add_address(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, 0, name, &a) < 0) {
508 avahi_log_warn("Failed to add service: %s", name);
509 return respond_error(c, m, "org.freedesktop.Avahi.InvalidAddressError", NULL);
511 /* avahi_log_info("Successfully added address: %s -> %s", name, address); */
513 return respond_ok(c, m);
516 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
519 if (dbus_error_is_set(&error))
520 dbus_error_free(&error);
522 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
525 static void host_name_resolver_callback(AvahiHostNameResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const gchar *host_name, const AvahiAddress *a, gpointer userdata) {
526 HostNameResolverInfo *i = userdata;
533 if (event == AVAHI_RESOLVER_FOUND) {
534 char t[256], *pt = t;
535 gint32 i_interface, i_protocol, i_aprotocol;
538 avahi_address_snprint(t, sizeof(t), a);
540 i_interface = (gint32) interface;
541 i_protocol = (gint32) protocol;
542 i_aprotocol = (gint32) a->family;
544 reply = dbus_message_new_method_return(i->message);
545 dbus_message_append_args(
547 DBUS_TYPE_INT32, &i_interface,
548 DBUS_TYPE_INT32, &i_protocol,
549 DBUS_TYPE_STRING, &host_name,
550 DBUS_TYPE_INT32, &i_aprotocol,
551 DBUS_TYPE_STRING, &pt,
555 g_assert(event == AVAHI_RESOLVER_TIMEOUT);
556 reply = dbus_message_new_error(i->message, "org.freedesktop.Avahi.TimeoutError", NULL);
559 dbus_connection_send(server->bus, reply, NULL);
560 dbus_message_unref(reply);
562 host_name_resolver_free(i);
565 static void address_resolver_callback(AvahiAddressResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *address, const gchar *host_name, gpointer userdata) {
566 AddressResolverInfo *i = userdata;
573 if (event == AVAHI_RESOLVER_FOUND) {
574 char t[256], *pt = t;
575 gint32 i_interface, i_protocol, i_aprotocol;
578 avahi_address_snprint(t, sizeof(t), address);
580 i_interface = (gint32) interface;
581 i_protocol = (gint32) protocol;
582 i_aprotocol = (gint32) address->family;
584 reply = dbus_message_new_method_return(i->message);
585 dbus_message_append_args(
587 DBUS_TYPE_INT32, &i_interface,
588 DBUS_TYPE_INT32, &i_protocol,
589 DBUS_TYPE_INT32, &i_aprotocol,
590 DBUS_TYPE_STRING, &pt,
591 DBUS_TYPE_STRING, &host_name,
595 g_assert(event == AVAHI_RESOLVER_TIMEOUT);
596 reply = dbus_message_new_error(i->message, "org.freedesktop.Avahi.TimeoutError", NULL);
599 dbus_connection_send(server->bus, reply, NULL);
600 dbus_message_unref(reply);
602 address_resolver_free(i);
605 static DBusHandlerResult msg_domain_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
607 DomainBrowserInfo *i = userdata;
613 dbus_error_init(&error);
615 avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
616 dbus_message_get_interface(m),
617 dbus_message_get_path(m),
618 dbus_message_get_member(m));
621 if (strcmp(dbus_message_get_sender(m), i->client->name))
622 return respond_error(c, m, DBUS_ERROR_ACCESS_DENIED, NULL);
624 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Free")) {
626 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
627 avahi_log_warn("Error parsing DomainBrowser::Free message");
631 domain_browser_free(i);
632 return respond_ok(c, m);
636 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
639 if (dbus_error_is_set(&error))
640 dbus_error_free(&error);
642 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
645 static void domain_browser_callback(AvahiDomainBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *domain, gpointer userdata) {
646 DomainBrowserInfo *i = userdata;
648 gint32 i_interface, i_protocol;
654 i_interface = (gint32) interface;
655 i_protocol = (gint32) protocol;
657 m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
658 dbus_message_append_args(
660 DBUS_TYPE_INT32, &i_interface,
661 DBUS_TYPE_INT32, &i_protocol,
662 DBUS_TYPE_STRING, &domain,
664 dbus_message_set_destination(m, i->client->name);
665 dbus_connection_send(server->bus, m, NULL);
666 dbus_message_unref(m);
669 static DBusHandlerResult msg_service_type_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
671 ServiceTypeBrowserInfo *i = userdata;
677 dbus_error_init(&error);
679 avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
680 dbus_message_get_interface(m),
681 dbus_message_get_path(m),
682 dbus_message_get_member(m));
685 if (strcmp(dbus_message_get_sender(m), i->client->name))
686 return respond_error(c, m, DBUS_ERROR_ACCESS_DENIED, NULL);
688 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Free")) {
690 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
691 avahi_log_warn("Error parsing ServiceTypeBrowser::Free message");
695 service_type_browser_free(i);
696 return respond_ok(c, m);
700 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
703 if (dbus_error_is_set(&error))
704 dbus_error_free(&error);
706 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
709 static void service_type_browser_callback(AvahiServiceTypeBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *type, const gchar *domain, gpointer userdata) {
710 ServiceTypeBrowserInfo *i = userdata;
712 gint32 i_interface, i_protocol;
719 i_interface = (gint32) interface;
720 i_protocol = (gint32) protocol;
722 m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
723 dbus_message_append_args(
725 DBUS_TYPE_INT32, &i_interface,
726 DBUS_TYPE_INT32, &i_protocol,
727 DBUS_TYPE_STRING, &type,
728 DBUS_TYPE_STRING, &domain,
730 dbus_message_set_destination(m, i->client->name);
731 dbus_connection_send(server->bus, m, NULL);
732 dbus_message_unref(m);
735 static DBusHandlerResult msg_service_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
737 ServiceBrowserInfo *i = userdata;
743 dbus_error_init(&error);
745 avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
746 dbus_message_get_interface(m),
747 dbus_message_get_path(m),
748 dbus_message_get_member(m));
751 if (strcmp(dbus_message_get_sender(m), i->client->name))
752 return respond_error(c, m, DBUS_ERROR_ACCESS_DENIED, NULL);
754 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Free")) {
756 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
757 avahi_log_warn("Error parsing ServiceBrowser::Free message");
761 service_browser_free(i);
762 return respond_ok(c, m);
766 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
769 if (dbus_error_is_set(&error))
770 dbus_error_free(&error);
772 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
775 static void service_browser_callback(AvahiServiceBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *name, const gchar *type, const gchar *domain, gpointer userdata) {
776 ServiceBrowserInfo *i = userdata;
778 gint32 i_interface, i_protocol;
786 i_interface = (gint32) interface;
787 i_protocol = (gint32) protocol;
789 m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
790 dbus_message_append_args(
792 DBUS_TYPE_INT32, &i_interface,
793 DBUS_TYPE_INT32, &i_protocol,
794 DBUS_TYPE_STRING, &name,
795 DBUS_TYPE_STRING, &type,
796 DBUS_TYPE_STRING, &domain,
798 dbus_message_set_destination(m, i->client->name);
799 dbus_connection_send(server->bus, m, NULL);
800 dbus_message_unref(m);
803 static void service_resolver_callback(
804 AvahiServiceResolver *r,
805 AvahiIfIndex interface,
806 AvahiProtocol protocol,
807 AvahiResolverEvent event,
811 const gchar *host_name,
812 const AvahiAddress *a,
814 AvahiStringList *txt,
817 ServiceResolverInfo *i = userdata;
824 if (event == AVAHI_RESOLVER_FOUND) {
825 char t[256], *pt = t;
826 gint32 i_interface, i_protocol, i_aprotocol;
832 avahi_address_snprint(t, sizeof(t), a);
834 i_interface = (gint32) interface;
835 i_protocol = (gint32) protocol;
836 i_aprotocol = (gint32) a->family;
838 array = g_new(gchar*, (n = avahi_string_list_length(txt)));
840 /** FIXME: DBUS doesn't support strings that include NUL bytes (?) */
841 for (p = txt, j = n-1; p; p = p->next, j--)
842 array[j] = g_strndup((gchar*) p->text, p->size);
844 reply = dbus_message_new_method_return(i->message);
845 dbus_message_append_args(
847 DBUS_TYPE_INT32, &i_interface,
848 DBUS_TYPE_INT32, &i_protocol,
849 DBUS_TYPE_STRING, &name,
850 DBUS_TYPE_STRING, &type,
851 DBUS_TYPE_STRING, &domain,
852 DBUS_TYPE_STRING, &host_name,
853 DBUS_TYPE_INT32, &i_aprotocol,
854 DBUS_TYPE_STRING, &pt,
855 DBUS_TYPE_UINT16, &port,
856 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, &array, n,
859 for (j = 0; j < n; j++)
863 g_assert(event == AVAHI_RESOLVER_TIMEOUT);
864 reply = dbus_message_new_error(i->message, "org.freedesktop.Avahi.TimeoutError", NULL);
867 dbus_connection_send(server->bus, reply, NULL);
868 dbus_message_unref(reply);
870 service_resolver_free(i);
873 static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
876 dbus_error_init(&error);
878 avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
879 dbus_message_get_interface(m),
880 dbus_message_get_path(m),
881 dbus_message_get_member(m));
883 if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostName")) {
885 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
886 avahi_log_warn("Error parsing Server::GetHostName message");
890 return respond_string(c, m, avahi_server_get_host_name(avahi_server));
892 } if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetDomainName")) {
894 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
895 avahi_log_warn("Error parsing Server::GetDomainName message");
899 return respond_string(c, m, avahi_server_get_domain_name(avahi_server));
901 } if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostNameFqdn")) {
903 if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
904 avahi_log_warn("Error parsing Server::GetHostNameFqdn message");
908 return respond_string(c, m, avahi_server_get_host_name_fqdn(avahi_server));
910 } if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")) {
912 if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
913 avahi_log_warn("Error parsing Server::GetVersionString message");
917 return respond_string(c, m, PACKAGE_STRING);
919 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "EntryGroupNew")) {
922 static const DBusObjectPathVTable vtable = {
924 msg_entry_group_impl,
931 if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
932 avahi_log_warn("Error parsing Server::EntryGroupNew message");
936 client = client_get(dbus_message_get_sender(m), TRUE);
938 i = g_new(EntryGroupInfo, 1);
939 i->id = ++client->current_id;
941 i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/EntryGroup%u", client->id, i->id);
942 AVAHI_LLIST_PREPEND(EntryGroupInfo, entry_groups, client->entry_groups, i);
944 if (!(i->entry_group = avahi_entry_group_new(avahi_server, entry_group_callback, i))) {
945 avahi_log_warn("Failed to create entry group");
950 dbus_connection_register_object_path(c, i->path, &vtable, i);
951 return respond_path(c, m, i->path);
953 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveHostName")) {
955 gint32 interface, protocol, aprotocol;
957 HostNameResolverInfo *i;
959 if (!dbus_message_get_args(
961 DBUS_TYPE_INT32, &interface,
962 DBUS_TYPE_INT32, &protocol,
963 DBUS_TYPE_STRING, &name,
964 DBUS_TYPE_INT32, &aprotocol,
965 DBUS_TYPE_INVALID) || !name || !*name) {
966 avahi_log_warn("Error parsing Server::ResolveHostName message");
970 client = client_get(dbus_message_get_sender(m), TRUE);
972 i = g_new(HostNameResolverInfo, 1);
974 i->message = dbus_message_ref(m);
975 AVAHI_LLIST_PREPEND(HostNameResolverInfo, host_name_resolvers, client->host_name_resolvers, i);
977 if (!(i->host_name_resolver = avahi_host_name_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, (AvahiProtocol) aprotocol, host_name_resolver_callback, i))) {
978 host_name_resolver_free(i);
979 avahi_log_warn("Failed to create host name resolver");
983 return DBUS_HANDLER_RESULT_HANDLED;
985 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveAddress")) {
987 gint32 interface, protocol;
989 AddressResolverInfo *i;
992 if (!dbus_message_get_args(
994 DBUS_TYPE_INT32, &interface,
995 DBUS_TYPE_INT32, &protocol,
996 DBUS_TYPE_STRING, &address,
997 DBUS_TYPE_INVALID) || !address || !*address) {
998 avahi_log_warn("Error parsing Server::ResolveAddress message");
1002 if (!avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a)) {
1003 avahi_log_warn("Error parsing address data");
1004 return respond_error(c, m, "org.freedesktop.Avahi.InvalidAddressError", NULL);
1007 client = client_get(dbus_message_get_sender(m), TRUE);
1009 i = g_new(AddressResolverInfo, 1);
1011 i->message = dbus_message_ref(m);
1013 AVAHI_LLIST_PREPEND(AddressResolverInfo, address_resolvers, client->address_resolvers, i);
1015 if (!(i->address_resolver = avahi_address_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, &a, address_resolver_callback, i))) {
1016 address_resolver_free(i);
1017 avahi_log_warn("Failed to create address resolver");
1021 return DBUS_HANDLER_RESULT_HANDLED;
1023 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "DomainBrowserNew")) {
1025 DomainBrowserInfo *i;
1026 static const DBusObjectPathVTable vtable = {
1028 msg_domain_browser_impl,
1034 gint32 interface, protocol, type;
1038 if (!dbus_message_get_args(
1040 DBUS_TYPE_INT32, &interface,
1041 DBUS_TYPE_INT32, &protocol,
1042 DBUS_TYPE_STRING, &domain,
1043 DBUS_TYPE_INT32, &type,
1044 DBUS_TYPE_INVALID) || type < 0 || type >= AVAHI_DOMAIN_BROWSER_MAX) {
1045 avahi_log_warn("Error parsing Server::DomainBrowserNew message");
1049 client = client_get(dbus_message_get_sender(m), TRUE);
1054 i = g_new(DomainBrowserInfo, 1);
1055 i->id = ++client->current_id;
1057 i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/DomainBrowser%u", client->id, i->id);
1059 AVAHI_LLIST_PREPEND(DomainBrowserInfo, domain_browsers, client->domain_browsers, i);
1061 if (!(i->domain_browser = avahi_domain_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, (AvahiDomainBrowserType) type, domain_browser_callback, i))) {
1062 avahi_log_warn("Failed to create domain browser");
1063 domain_browser_free(i);
1067 dbus_connection_register_object_path(c, i->path, &vtable, i);
1068 return respond_path(c, m, i->path);
1070 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceTypeBrowserNew")) {
1072 ServiceTypeBrowserInfo *i;
1073 static const DBusObjectPathVTable vtable = {
1075 msg_service_type_browser_impl,
1081 gint32 interface, protocol;
1084 if (!dbus_message_get_args(
1086 DBUS_TYPE_INT32, &interface,
1087 DBUS_TYPE_INT32, &protocol,
1088 DBUS_TYPE_STRING, &domain,
1089 DBUS_TYPE_INVALID)) {
1090 avahi_log_warn("Error parsing Server::ServiceTypeBrowserNew message");
1094 client = client_get(dbus_message_get_sender(m), TRUE);
1099 i = g_new(ServiceTypeBrowserInfo, 1);
1100 i->id = ++client->current_id;
1102 i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/ServiceTypeBrowser%u", client->id, i->id);
1104 AVAHI_LLIST_PREPEND(ServiceTypeBrowserInfo, service_type_browsers, client->service_type_browsers, i);
1106 if (!(i->service_type_browser = avahi_service_type_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, service_type_browser_callback, i))) {
1107 avahi_log_warn("Failed to create service type browser");
1108 service_type_browser_free(i);
1112 dbus_connection_register_object_path(c, i->path, &vtable, i);
1113 return respond_path(c, m, i->path);
1115 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ServiceBrowserNew")) {
1117 ServiceBrowserInfo *i;
1118 static const DBusObjectPathVTable vtable = {
1120 msg_service_browser_impl,
1126 gint32 interface, protocol;
1127 gchar *domain, *type;
1129 if (!dbus_message_get_args(
1131 DBUS_TYPE_INT32, &interface,
1132 DBUS_TYPE_INT32, &protocol,
1133 DBUS_TYPE_STRING, &type,
1134 DBUS_TYPE_STRING, &domain,
1135 DBUS_TYPE_INVALID) || !type || !*type) {
1136 avahi_log_warn("Error parsing Server::ServiceBrowserNew message");
1140 client = client_get(dbus_message_get_sender(m), TRUE);
1145 i = g_new(ServiceBrowserInfo, 1);
1146 i->id = ++client->current_id;
1148 i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/ServiceBrowser%u", client->id, i->id);
1150 AVAHI_LLIST_PREPEND(ServiceBrowserInfo, service_browsers, client->service_browsers, i);
1152 if (!(i->service_browser = avahi_service_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, type, domain, service_browser_callback, i))) {
1153 avahi_log_warn("Failed to create service browser");
1154 service_browser_free(i);
1158 dbus_connection_register_object_path(c, i->path, &vtable, i);
1159 return respond_path(c, m, i->path);
1161 } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveService")) {
1163 gint32 interface, protocol, aprotocol;
1164 gchar *name, *type, *domain;
1165 ServiceResolverInfo *i;
1167 if (!dbus_message_get_args(
1169 DBUS_TYPE_INT32, &interface,
1170 DBUS_TYPE_INT32, &protocol,
1171 DBUS_TYPE_STRING, &name,
1172 DBUS_TYPE_STRING, &type,
1173 DBUS_TYPE_STRING, &domain,
1174 DBUS_TYPE_INT32, &aprotocol,
1175 DBUS_TYPE_INVALID) || !name || !*name || !type || !*type) {
1176 avahi_log_warn("Error parsing Server::ResolveService message");
1180 client = client_get(dbus_message_get_sender(m), TRUE);
1185 i = g_new(ServiceResolverInfo, 1);
1187 i->message = dbus_message_ref(m);
1188 AVAHI_LLIST_PREPEND(ServiceResolverInfo, service_resolvers, client->service_resolvers, i);
1190 if (!(i->service_resolver = avahi_service_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, (AvahiProtocol) aprotocol, service_resolver_callback, i))) {
1191 service_resolver_free(i);
1192 avahi_log_warn("Failed to create service resolver");
1196 return DBUS_HANDLER_RESULT_HANDLED;
1199 avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
1203 if (dbus_error_is_set(&error))
1204 dbus_error_free(&error);
1206 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1209 void dbus_protocol_server_state_changed(AvahiServerState state) {
1216 m = dbus_message_new_signal(AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "StateChanged");
1218 dbus_message_append_args(m, DBUS_TYPE_INT32, &t, DBUS_TYPE_INVALID);
1219 dbus_connection_send(server->bus, m, NULL);
1220 dbus_message_unref(m);
1223 int dbus_protocol_setup(GMainLoop *loop) {
1226 static const DBusObjectPathVTable server_vtable = {
1235 dbus_error_init(&error);
1237 server = g_malloc(sizeof(Server));
1238 server->clients = NULL;
1239 server->current_id = 0;
1241 server->bus = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
1242 if (dbus_error_is_set(&error)) {
1243 avahi_log_warn("dbus_bus_get(): %s", error.message);
1247 dbus_connection_setup_with_g_main(server->bus, NULL);
1248 dbus_connection_set_exit_on_disconnect(server->bus, FALSE);
1250 dbus_bus_request_name(server->bus, AVAHI_DBUS_NAME, 0, &error);
1251 if (dbus_error_is_set(&error)) {
1252 avahi_log_warn("dbus_bus_request_name(): %s", error.message);
1256 dbus_bus_add_match(server->bus, "type='signal',""interface='" DBUS_INTERFACE_DBUS "'", &error);
1258 dbus_connection_add_filter(server->bus, msg_signal_filter_impl, loop, NULL);
1259 dbus_connection_register_object_path(server->bus, AVAHI_DBUS_PATH_SERVER, &server_vtable, NULL);
1265 dbus_connection_disconnect(server->bus);
1266 dbus_connection_unref(server->bus);
1269 dbus_error_free (&error);
1275 void dbus_protocol_shutdown(void) {
1279 while (server->clients)
1280 client_free(server->clients);
1283 dbus_connection_disconnect(server->bus);
1284 dbus_connection_unref(server->bus);