- g_assert(server->n_clients > 0);
-
- return client;
-}
-
-static DBusHandlerResult respond_error(DBusConnection *c, DBusMessage *m, gint error, const gchar *text) {
- DBusMessage *reply;
-
- const gchar * const table[- AVAHI_ERR_MAX] = {
- NULL, /* OK */
- AVAHI_DBUS_ERR_FAILURE,
- AVAHI_DBUS_ERR_BAD_STATE,
- AVAHI_DBUS_ERR_INVALID_HOST_NAME,
- AVAHI_DBUS_ERR_INVALID_DOMAIN_NAME,
- AVAHI_DBUS_ERR_NO_NETWORK,
- AVAHI_DBUS_ERR_INVALID_TTL,
- AVAHI_DBUS_ERR_IS_PATTERN,
- AVAHI_DBUS_ERR_LOCAL_COLLISION,
- AVAHI_DBUS_ERR_INVALID_RECORD,
- AVAHI_DBUS_ERR_INVALID_SERVICE_NAME,
- AVAHI_DBUS_ERR_INVALID_SERVICE_TYPE,
- AVAHI_DBUS_ERR_INVALID_PORT,
- AVAHI_DBUS_ERR_INVALID_KEY,
- AVAHI_DBUS_ERR_INVALID_ADDRESS,
- AVAHI_DBUS_ERR_TIMEOUT,
- AVAHI_DBUS_ERR_TOO_MANY_CLIENTS,
- AVAHI_DBUS_ERR_TOO_MANY_OBJECTS,
- AVAHI_DBUS_ERR_TOO_MANY_ENTRIES,
- AVAHI_DBUS_ERR_OS,
- AVAHI_DBUS_ERR_ACCESS_DENIED,
- AVAHI_DBUS_ERR_INVALID_OPERATION
- };
-
- g_assert(-error > -AVAHI_OK);
- g_assert(-error < -AVAHI_ERR_MAX);
-
- reply = dbus_message_new_error(m, table[-error], text ? text : avahi_strerror(error));
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-static DBusHandlerResult respond_string(DBusConnection *c, DBusMessage *m, const gchar *text) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
- dbus_message_append_args(reply, DBUS_TYPE_STRING, &text, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-static DBusHandlerResult respond_int32(DBusConnection *c, DBusMessage *m, gint32 i) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
- dbus_message_append_args(reply, DBUS_TYPE_INT32, &i, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-static DBusHandlerResult respond_ok(DBusConnection *c, DBusMessage *m) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-static DBusHandlerResult respond_path(DBusConnection *c, DBusMessage *m, const gchar *path) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
- dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-static DBusHandlerResult handle_introspect(DBusConnection *c, DBusMessage *m, const gchar *fname) {
- gchar *path = NULL;
- gchar *contents;
- GError *gerror = NULL;
- DBusError error;
-
- g_assert(c);
- g_assert(m);
- g_assert(fname);
-
- dbus_error_init(&error);
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing Introspect message: %s", error.message);
- goto fail;
- }
-
- path = g_strdup_printf("%s/%s", AVAHI_DBUS_INTROSPECTION_DIR, fname);
-
- if (!(g_file_get_contents(path, &contents, NULL, &gerror))) {
- avahi_log_warn("Failed to load introspection data: %s", gerror->message);
- g_error_free(gerror);
- g_free(path);
- goto fail;
- }
-
- g_free(path);
-
- respond_string(c, m, contents);
- g_free(contents);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-
-fail:
- if (dbus_error_is_set(&error))
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-
-}
-
-static DBusHandlerResult msg_signal_filter_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
- GMainLoop *loop = userdata;
- DBusError error;
-
- dbus_error_init(&error);
-
-/* avahi_log_debug("dbus: interface=%s, path=%s, member=%s", */
-/* dbus_message_get_interface(m), */
-/* dbus_message_get_path(m), */
-/* dbus_message_get_member(m)); */
-
- if (dbus_message_is_signal(m, DBUS_INTERFACE_LOCAL, "Disconnected")) {
- /* No, we shouldn't quit, but until we get somewhere
- * usefull such that we can restore our state, we will */
- avahi_log_warn("Disconnnected from d-bus, terminating...");
- g_main_loop_quit (loop);
- return DBUS_HANDLER_RESULT_HANDLED;
-
- } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameAcquired")) {
- gchar *name;
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing NameAcquired message");
- goto fail;
- }
-
-/* avahi_log_info("dbus: name acquired (%s)", name); */
- return DBUS_HANDLER_RESULT_HANDLED;
-
- } else if (dbus_message_is_signal(m, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
- gchar *name, *old, *new;
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &old, DBUS_TYPE_STRING, &new, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing NameOwnerChanged message");
- goto fail;
- }
-
- if (!*new) {
- Client *client;
-
- if ((client = client_get(name, FALSE))) {
-/* avahi_log_info("dbus: client %s vanished", name); */
- client_free(client);
- }
- }
- }
-
-fail:
- if (dbus_error_is_set(&error))
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-}
-
-static void entry_group_callback(AvahiServer *s, AvahiEntryGroup *g, AvahiEntryGroupState state, gpointer userdata) {
- EntryGroupInfo *i = userdata;
- DBusMessage *m;
- gint32 t;
-
- g_assert(s);
- g_assert(g);
- g_assert(i);
-
- m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged");
- t = (gint32) state;
- dbus_message_append_args(m, DBUS_TYPE_INT32, &t, DBUS_TYPE_INVALID);
- dbus_message_set_destination(m, i->client->name);
- dbus_connection_send(server->bus, m, NULL);
- dbus_message_unref(m);
-}
-
-static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
- DBusError error;
- EntryGroupInfo *i = userdata;
-
- g_assert(c);
- g_assert(m);
- g_assert(i);
-
- dbus_error_init(&error);
-
- avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
- dbus_message_get_interface(m),
- dbus_message_get_path(m),
- dbus_message_get_member(m));
-
- /* Introspection */
- if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
- return handle_introspect(c, m, "EntryGroup.introspect");
-
- /* Access control */
- if (strcmp(dbus_message_get_sender(m), i->client->name))
- return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
-
- if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Free")) {
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing EntryGroup::Free message");
- goto fail;
- }
-
- entry_group_free(i);
- return respond_ok(c, m);
-
- } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Commit")) {
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing EntryGroup::Commit message");
- goto fail;
- }
-
- avahi_entry_group_commit(i->entry_group);
- return respond_ok(c, m);
-
-
- } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Reset")) {
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing EntryGroup::Reset message");
- goto fail;
- }
-
- avahi_entry_group_reset(i->entry_group);
- return respond_ok(c, m);
-
- } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "IsEmpty")) {
- DBusMessage *reply;
- gboolean b;
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing EntryGroup::IsEmpty message");
- goto fail;
- }
-
- b = !!avahi_entry_group_is_empty(i->entry_group);
-
- reply = dbus_message_new_method_return(m);
- dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &b, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-
- } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "GetState")) {
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing EntryGroup::GetState message");
- goto fail;
- }
-
- return respond_int32(c, m, (gint32) avahi_entry_group_get_state(i->entry_group));
-
- } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddService")) {
- gint32 interface, protocol;
- gchar *type, *name, *domain, *host;
- guint16 port;
- gchar **txt = NULL;
- gint txt_len;
- AvahiStringList *strlst;
-
- if (!dbus_message_get_args(
- m, &error,
- DBUS_TYPE_INT32, &interface,
- DBUS_TYPE_INT32, &protocol,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_STRING, &type,
- DBUS_TYPE_STRING, &domain,
- DBUS_TYPE_STRING, &host,
- DBUS_TYPE_UINT16, &port,
- DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, &txt, &txt_len,
- DBUS_TYPE_INVALID) || !type || !name) {
- avahi_log_warn("Error parsing EntryGroup::AddService message");
- goto fail;
- }
-
- if (i->n_entries >= MAX_ENTRIES_PER_ENTRY_GROUP) {
- avahi_log_warn("Too many entries per entry group, client request failed.");
- dbus_free_string_array(txt);
- return respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
- }
-
- strlst = avahi_string_list_new_from_array((const gchar**) txt, txt_len);
- dbus_free_string_array(txt);
-
- if (domain && !*domain)
- domain = NULL;
-
- if (host && !*host)
- host = NULL;
-
- if (avahi_server_add_service_strlst(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, host, port, strlst) < 0) {
- avahi_string_list_free(strlst);
- return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
- } else
- i->n_entries ++;
-
- avahi_string_list_free(strlst);
-
- return respond_ok(c, m);
-
- } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddAddress")) {
- gint32 interface, protocol;
- gchar *name, *address;
- AvahiAddress a;
-
- if (!dbus_message_get_args(
- m, &error,
- DBUS_TYPE_INT32, &interface,
- DBUS_TYPE_INT32, &protocol,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_STRING, &address,
- DBUS_TYPE_INVALID) || !name || !address) {
- avahi_log_warn("Error parsing EntryGroup::AddAddress message");
- goto fail;
- }
-
- if (i->n_entries >= MAX_ENTRIES_PER_ENTRY_GROUP) {
- avahi_log_warn("Too many entries per entry group, client request failed.");
- return respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
- }
-
- if (!(avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))) {
- return respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
- }
-
- if (avahi_server_add_address(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, 0, name, &a) < 0)
- return respond_error(c, m, avahi_server_errno(avahi_server), NULL);
- else
- i->n_entries ++;
-
- return respond_ok(c, m);
- }
-
- avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
-
-fail:
- if (dbus_error_is_set(&error))
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-}
-
-static void host_name_resolver_callback(AvahiHostNameResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const gchar *host_name, const AvahiAddress *a, gpointer userdata) {
- HostNameResolverInfo *i = userdata;
-
- g_assert(r);
- g_assert(host_name);
- g_assert(i);
-
- if (event == AVAHI_RESOLVER_FOUND) {
- char t[256], *pt = t;
- gint32 i_interface, i_protocol, i_aprotocol;
- DBusMessage *reply;
-
- g_assert(a);
- avahi_address_snprint(t, sizeof(t), a);
-
- i_interface = (gint32) interface;
- i_protocol = (gint32) protocol;
- i_aprotocol = (gint32) a->family;
-
- reply = dbus_message_new_method_return(i->message);
- dbus_message_append_args(
- reply,
- DBUS_TYPE_INT32, &i_interface,
- DBUS_TYPE_INT32, &i_protocol,
- DBUS_TYPE_STRING, &host_name,
- DBUS_TYPE_INT32, &i_aprotocol,
- DBUS_TYPE_STRING, &pt,
- DBUS_TYPE_INVALID);
-
- dbus_connection_send(server->bus, reply, NULL);
- dbus_message_unref(reply);
- } else {
- g_assert(event == AVAHI_RESOLVER_TIMEOUT);
-
- respond_error(server->bus, i->message, AVAHI_ERR_TIMEOUT, NULL);
- }
-
- host_name_resolver_free(i);
-}
-
-static void address_resolver_callback(AvahiAddressResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *address, const gchar *host_name, gpointer userdata) {
- AddressResolverInfo *i = userdata;
-
- g_assert(r);
- g_assert(address);
- g_assert(i);
-
- if (event == AVAHI_RESOLVER_FOUND) {
- char t[256], *pt = t;
- gint32 i_interface, i_protocol, i_aprotocol;
- DBusMessage *reply;
-
- g_assert(host_name);
- avahi_address_snprint(t, sizeof(t), address);
-
- i_interface = (gint32) interface;
- i_protocol = (gint32) protocol;
- i_aprotocol = (gint32) address->family;
-
- reply = dbus_message_new_method_return(i->message);
- dbus_message_append_args(
- reply,
- DBUS_TYPE_INT32, &i_interface,
- DBUS_TYPE_INT32, &i_protocol,
- DBUS_TYPE_INT32, &i_aprotocol,
- DBUS_TYPE_STRING, &pt,
- DBUS_TYPE_STRING, &host_name,
- DBUS_TYPE_INVALID);
-
- dbus_connection_send(server->bus, reply, NULL);
- dbus_message_unref(reply);
- } else {
- g_assert(event == AVAHI_RESOLVER_TIMEOUT);
- respond_error(server->bus, i->message, AVAHI_ERR_TIMEOUT, NULL);
- }
-
- address_resolver_free(i);
-}
-
-static DBusHandlerResult msg_domain_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
- DBusError error;
- DomainBrowserInfo *i = userdata;
-
- g_assert(c);
- g_assert(m);
- g_assert(i);
-
- dbus_error_init(&error);
-
- avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
- dbus_message_get_interface(m),
- dbus_message_get_path(m),
- dbus_message_get_member(m));
-
- /* Introspection */
- if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
- return handle_introspect(c, m, "DomainBrowser.introspect");
-
- /* Access control */
- if (strcmp(dbus_message_get_sender(m), i->client->name))
- return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
-
- if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Free")) {
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing DomainBrowser::Free message");
- goto fail;
- }
-
- domain_browser_free(i);
- return respond_ok(c, m);
-
- }
-
- avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
-
-fail:
- if (dbus_error_is_set(&error))
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-}
-
-static void domain_browser_callback(AvahiDomainBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *domain, gpointer userdata) {
- DomainBrowserInfo *i = userdata;
- DBusMessage *m;
- gint32 i_interface, i_protocol;
-
- g_assert(b);
- g_assert(domain);
- g_assert(i);
-
- i_interface = (gint32) interface;
- i_protocol = (gint32) protocol;
-
- m = dbus_message_new_signal(i->path, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, event == AVAHI_BROWSER_NEW ? "ItemNew" : "ItemRemove");
- dbus_message_append_args(
- m,
- DBUS_TYPE_INT32, &i_interface,
- DBUS_TYPE_INT32, &i_protocol,
- DBUS_TYPE_STRING, &domain,
- DBUS_TYPE_INVALID);
- dbus_message_set_destination(m, i->client->name);
- dbus_connection_send(server->bus, m, NULL);
- dbus_message_unref(m);
-}
-
-static DBusHandlerResult msg_service_type_browser_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
- DBusError error;
- ServiceTypeBrowserInfo *i = userdata;
-
- g_assert(c);
- g_assert(m);
- g_assert(i);
-
- dbus_error_init(&error);
-
- avahi_log_debug("dbus: interface=%s, path=%s, member=%s",
- dbus_message_get_interface(m),
- dbus_message_get_path(m),
- dbus_message_get_member(m));
-
- /* Introspection */
- if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
- return handle_introspect(c, m, "ServiceTypeBrowser.introspect");
-
- /* Access control */
- if (strcmp(dbus_message_get_sender(m), i->client->name))
- return respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
-
- if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Free")) {
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_warn("Error parsing ServiceTypeBrowser::Free message");
- goto fail;
- }
-
- service_type_browser_free(i);
- return respond_ok(c, m);
-
- }
-
- avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
-
-fail:
- if (dbus_error_is_set(&error))
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-}
-
-static void service_type_browser_callback(AvahiServiceTypeBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *type, const gchar *domain, gpointer userdata) {
- ServiceTypeBrowserInfo *i = userdata;
- DBusMessage *m;
- gint32 i_interface, i_protocol;