]> git.meshlink.io Git - catta/blobdiff - avahi-daemon/dbus-protocol.c
* add C examples
[catta] / avahi-daemon / dbus-protocol.c
index ab30a91cdbc657c9241d1a56c4d587d8651da8ec..c6a60df22d80c14826090b8dcfeef7f08525f939 100644 (file)
 #include <avahi-core/llist.h>
 #include <avahi-core/log.h>
 #include <avahi-core/core.h>
+#include <avahi-common/dbus.h>
 
 #include "dbus-protocol.h"
 #include "main.h"
 
-#define AVAHI_DBUS_NAME "org.freedesktop.Avahi"
-#define AVAHI_DBUS_INTERFACE_SERVER AVAHI_DBUS_NAME".Server"
-#define AVAHI_DBUS_PATH_SERVER "/org/freedesktop/Avahi/Server"
-#define AVAHI_DBUS_INTERFACE_ENTRY_GROUP AVAHI_DBUS_NAME".EntryGroup"
-#define AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER AVAHI_DBUS_NAME".DomainBrowser"
-#define AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER AVAHI_DBUS_NAME".ServiceTypeBrowser"
-#define AVAHI_DBUS_INTERFACE_SERVICE_BROWSER AVAHI_DBUS_NAME".ServiceBrowser"
-
-/* Needs wrapping:
-   - AvahiServiceResolver */
-
 typedef struct Server Server;
 typedef struct Client Client;
 typedef struct EntryGroupInfo EntryGroupInfo;
@@ -58,11 +48,17 @@ typedef struct ServiceTypeBrowserInfo ServiceTypeBrowserInfo;
 typedef struct ServiceBrowserInfo ServiceBrowserInfo;
 typedef struct ServiceResolverInfo ServiceResolverInfo;
 
+#define MAX_CLIENTS 20
+#define MAX_OBJECTS_PER_CLIENT 50
+#define MAX_ENTRIES_PER_ENTRY_GROUP 20
+
 struct EntryGroupInfo {
     guint id;
     Client *client;
     AvahiEntryGroup *entry_group;
     gchar *path;
+
+    gint n_entries;
     
     AVAHI_LLIST_FIELDS(EntryGroupInfo, entry_groups);
 };
@@ -122,6 +118,7 @@ struct Client {
     guint id;
     gchar *name;
     guint current_id;
+    gint n_objects;
     
     AVAHI_LLIST_FIELDS(Client, clients);
     AVAHI_LLIST_HEAD(EntryGroupInfo, entry_groups);
@@ -136,6 +133,7 @@ struct Client {
 struct Server {
     DBusConnection *bus;
     AVAHI_LLIST_HEAD(Client, clients);
+    gint n_clients;
     guint current_id;
 };
 
@@ -149,6 +147,10 @@ static void entry_group_free(EntryGroupInfo *i) {
     dbus_connection_unregister_object_path(server->bus, i->path);
     g_free(i->path);
     AVAHI_LLIST_REMOVE(EntryGroupInfo, entry_groups, i->client->entry_groups, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+    
     g_free(i);
  }
 
@@ -159,6 +161,10 @@ static void host_name_resolver_free(HostNameResolverInfo *i) {
         avahi_host_name_resolver_free(i->host_name_resolver);
     dbus_message_unref(i->message);
     AVAHI_LLIST_REMOVE(HostNameResolverInfo, host_name_resolvers, i->client->host_name_resolvers, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+
     g_free(i);
 }
 
@@ -169,6 +175,10 @@ static void address_resolver_free(AddressResolverInfo *i) {
         avahi_address_resolver_free(i->address_resolver);
     dbus_message_unref(i->message);
     AVAHI_LLIST_REMOVE(AddressResolverInfo, address_resolvers, i->client->address_resolvers, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+
     g_free(i);
 }
 
@@ -180,6 +190,10 @@ static void domain_browser_free(DomainBrowserInfo *i) {
     dbus_connection_unregister_object_path(server->bus, i->path);
     g_free(i->path);
     AVAHI_LLIST_REMOVE(DomainBrowserInfo, domain_browsers, i->client->domain_browsers, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+
     g_free(i);
 }
 
@@ -191,6 +205,10 @@ static void service_type_browser_free(ServiceTypeBrowserInfo *i) {
     dbus_connection_unregister_object_path(server->bus, i->path);
     g_free(i->path);
     AVAHI_LLIST_REMOVE(ServiceTypeBrowserInfo, service_type_browsers, i->client->service_type_browsers, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+
     g_free(i);
 }
 
@@ -202,6 +220,10 @@ static void service_browser_free(ServiceBrowserInfo *i) {
     dbus_connection_unregister_object_path(server->bus, i->path);
     g_free(i->path);
     AVAHI_LLIST_REMOVE(ServiceBrowserInfo, service_browsers, i->client->service_browsers, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+
     g_free(i);
 }
 
@@ -212,6 +234,10 @@ static void service_resolver_free(ServiceResolverInfo *i) {
         avahi_service_resolver_free(i->service_resolver);
     dbus_message_unref(i->message);
     AVAHI_LLIST_REMOVE(ServiceResolverInfo, service_resolvers, i->client->service_resolvers, i);
+
+    i->client->n_objects--;
+    g_assert(i->client->n_objects >= 0);
+
     g_free(i);
 }
 
@@ -241,9 +267,14 @@ static void client_free(Client *c) {
     while (c->service_resolvers)
         service_resolver_free(c->service_resolvers);
 
+    g_assert(c->n_objects == 0);
+    
     g_free(c->name);
     AVAHI_LLIST_REMOVE(Client, clients, server->clients, c);
     g_free(c);
+
+    server->n_clients --;
+    g_assert(server->n_clients >= 0);
 }
 
 static Client *client_get(const gchar *name, gboolean create) {
@@ -259,11 +290,15 @@ static Client *client_get(const gchar *name, gboolean create) {
     if (!create)
         return NULL;
 
+    if (server->n_clients >= MAX_CLIENTS)
+        return NULL;
+    
     /* If not existant yet, create a new entry */
     client = g_new(Client, 1);
     client->id = server->current_id++;
     client->name = g_strdup(name);
     client->current_id = 0;
+    client->n_objects = 0;
     AVAHI_LLIST_HEAD_INIT(EntryGroupInfo, client->entry_groups);
     AVAHI_LLIST_HEAD_INIT(HostNameResolverInfo, client->host_name_resolvers);
     AVAHI_LLIST_HEAD_INIT(AddressResolverInfo, client->address_resolvers);
@@ -273,6 +308,10 @@ static Client *client_get(const gchar *name, gboolean create) {
     AVAHI_LLIST_HEAD_INIT(ServiceResolverInfo, client->service_resolvers);
 
     AVAHI_LLIST_PREPEND(Client, clients, server->clients, client);
+
+    server->n_clients++;
+    g_assert(server->n_clients > 0);
+    
     return client;
 }
 
@@ -318,6 +357,47 @@ static DBusHandlerResult respond_path(DBusConnection *c, DBusMessage *m, const g
     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;
@@ -405,6 +485,10 @@ static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *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, DBUS_ERROR_ACCESS_DENIED, NULL);
@@ -429,6 +513,35 @@ static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m,
         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(m, 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")) {
         DBusMessage *reply;
         gint32 t;
@@ -469,6 +582,12 @@ static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m,
             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_DBUS_ERROR_TOO_MANY_ENTRIES, NULL);
+        }
+
         strlst = avahi_string_list_new_from_array((const gchar**) txt, txt_len);
         dbus_free_string_array(txt);
 
@@ -480,9 +599,12 @@ static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m,
 
         if (avahi_server_add_service_strlst(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, host, port, strlst) < 0) {
             avahi_log_warn("Failed to add service: %s", name);
-            return respond_error(c, m, "org.freedesktop.Avahi.InvalidServiceError", NULL);
-        } /* else */
-/*             avahi_log_info("Successfully added service: %s", name); */
+            avahi_string_list_free(strlst);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_INVALID_SERVICE, NULL);
+        } else
+            i->n_entries ++;
+        
+        avahi_string_list_free(strlst);
         
         return respond_ok(c, m);
         
@@ -502,16 +624,21 @@ static DBusHandlerResult msg_entry_group_impl(DBusConnection *c, DBusMessage *m,
             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_DBUS_ERROR_TOO_MANY_ENTRIES, NULL);
+        }
+        
         if (!(avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a))) {
             avahi_log_warn("Error parsing address data");
-            return respond_error(c, m, "org.freedesktop.Avahi.InvalidAddressError", NULL);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_INVALID_ADDRESS, NULL);
         }
 
         if (avahi_server_add_address(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, 0, name, &a) < 0) {
             avahi_log_warn("Failed to add service: %s", name);
-            return respond_error(c, m, "org.freedesktop.Avahi.InvalidAddressError", NULL);
-        }/*  else */
-/*             avahi_log_info("Successfully added address: %s -> %s", name, address); */
+            return respond_error(c, m, AVAHI_DBUS_ERROR_INVALID_ADDRESS, NULL);
+        } else
+            i->n_entries ++;
         
         return respond_ok(c, m);
     }
@@ -556,7 +683,7 @@ static void host_name_resolver_callback(AvahiHostNameResolver *r, AvahiIfIndex i
 
     } else {
         g_assert(event == AVAHI_RESOLVER_TIMEOUT);
-        reply = dbus_message_new_error(i->message, "org.freedesktop.Avahi.TimeoutError", NULL);
+        reply = dbus_message_new_error(i->message, AVAHI_DBUS_ERROR_TIMEOUT, NULL);
     }
 
     dbus_connection_send(server->bus, reply, NULL);
@@ -596,7 +723,7 @@ static void address_resolver_callback(AvahiAddressResolver *r, AvahiIfIndex inte
 
     } else {
         g_assert(event == AVAHI_RESOLVER_TIMEOUT);
-        reply = dbus_message_new_error(i->message, "org.freedesktop.Avahi.TimeoutError", NULL);
+        reply = dbus_message_new_error(i->message, AVAHI_DBUS_ERROR_TIMEOUT, NULL);
     }
 
     dbus_connection_send(server->bus, reply, NULL);
@@ -620,6 +747,10 @@ static DBusHandlerResult msg_domain_browser_impl(DBusConnection *c, DBusMessage
                     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, DBUS_ERROR_ACCESS_DENIED, NULL);
@@ -684,6 +815,10 @@ static DBusHandlerResult msg_service_type_browser_impl(DBusConnection *c, DBusMe
                     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, DBUS_ERROR_ACCESS_DENIED, NULL);
@@ -750,6 +885,10 @@ static DBusHandlerResult msg_service_browser_impl(DBusConnection *c, DBusMessage
                     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, "ServiceBrowser.introspect");
+    
     /* Access control */
     if (strcmp(dbus_message_get_sender(m), i->client->name)) 
         return respond_error(c, m, DBUS_ERROR_ACCESS_DENIED, NULL);
@@ -803,6 +942,78 @@ static void service_browser_callback(AvahiServiceBrowser *b, AvahiIfIndex interf
     dbus_message_unref(m);
 }
 
+static void service_resolver_callback(
+    AvahiServiceResolver *r,
+    AvahiIfIndex interface,
+    AvahiProtocol protocol,
+    AvahiResolverEvent event,
+    const gchar *name,
+    const gchar *type,
+    const gchar *domain,
+    const gchar *host_name,
+    const AvahiAddress *a,
+    guint16 port,
+    AvahiStringList *txt,
+    gpointer userdata) {
+    
+    ServiceResolverInfo *i = userdata;
+    DBusMessage *reply;
+    
+    g_assert(r);
+    g_assert(i);
+
+    if (event == AVAHI_RESOLVER_FOUND) {
+        char t[256], *pt = t;
+        gint32 i_interface, i_protocol, i_aprotocol;
+        gchar **array;
+        guint n, j;
+        AvahiStringList *p;
+
+        g_assert(host_name);
+        
+        g_assert(a);
+        avahi_address_snprint(t, sizeof(t), a);
+
+        i_interface = (gint32) interface;
+        i_protocol = (gint32) protocol;
+        i_aprotocol = (gint32) a->family;
+
+        array = g_new(gchar*, (n = avahi_string_list_length(txt)));
+
+        /** FIXME: DBUS doesn't support strings that include NUL bytes (?) */
+        for (p = txt, j = n-1; p; p = p->next, j--)
+            array[j] = g_strndup((gchar*) p->text, p->size);
+        
+        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, &name,
+            DBUS_TYPE_STRING, &type,
+            DBUS_TYPE_STRING, &domain,
+            DBUS_TYPE_STRING, &host_name,
+            DBUS_TYPE_INT32, &i_aprotocol,
+            DBUS_TYPE_STRING, &pt,
+            DBUS_TYPE_UINT16, &port,
+            DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, &array, n,
+            DBUS_TYPE_INVALID);
+
+        for (j = 0; j < n; j++)
+            g_free(array[j]);
+
+    } else {
+        g_assert(event == AVAHI_RESOLVER_TIMEOUT);
+        reply = dbus_message_new_error(i->message, AVAHI_DBUS_ERROR_TIMEOUT, NULL);
+    }
+
+    dbus_connection_send(server->bus, reply, NULL);
+    dbus_message_unref(reply);
+
+    service_resolver_free(i);
+}
+
+
 static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
     DBusError error;
 
@@ -813,7 +1024,10 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
                     dbus_message_get_path(m),
                     dbus_message_get_member(m));
 
-    if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostName")) {
+    if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
+        return handle_introspect(c, m, "Server.introspect");
+        
+    else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostName")) {
 
         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
             avahi_log_warn("Error parsing Server::GetHostName message");
@@ -822,7 +1036,7 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
 
         return respond_string(c, m, avahi_server_get_host_name(avahi_server));
         
-    } if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetDomainName")) {
+    } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetDomainName")) {
 
         if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
             avahi_log_warn("Error parsing Server::GetDomainName message");
@@ -831,7 +1045,7 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
 
         return respond_string(c, m, avahi_server_get_domain_name(avahi_server));
 
-    } if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostNameFqdn")) {
+    } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetHostNameFqdn")) {
 
         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
             avahi_log_warn("Error parsing Server::GetHostNameFqdn message");
@@ -840,7 +1054,7 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
     
         return respond_string(c, m, avahi_server_get_host_name_fqdn(avahi_server));
         
-    } if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")) {
+    } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")) {
 
         if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
             avahi_log_warn("Error parsing Server::GetVersionString message");
@@ -848,6 +1062,52 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
         }
     
         return respond_string(c, m, PACKAGE_STRING);
+
+    } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetState")) {
+        DBusMessage *reply;
+        gint32 s;
+            
+        if (!(dbus_message_get_args(m, &error, DBUS_TYPE_INVALID))) {
+            avahi_log_warn("Error parsing Server::GetState message");
+            goto fail;
+        }
+
+        s = (gint32) avahi_server_get_state(avahi_server);
+        
+        reply = dbus_message_new_method_return(m);
+        dbus_message_append_args(reply, DBUS_TYPE_INT32, &s, 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_SERVER, "GetAlternativeHostName")) {
+        gchar *n, * t;
+        
+        if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n || !*n) {
+            avahi_log_warn("Error parsing Server::GetAlternativeHostName message");
+            goto fail;
+        }
+
+        t = avahi_alternative_host_name(n);
+        respond_string(c, m, t);
+        g_free(t);
+
+        return DBUS_HANDLER_RESULT_HANDLED;
+
+    } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "GetAlternativeServiceName")) {
+        gchar *n, *t;
+        
+        if (!(dbus_message_get_args(m, &error, DBUS_TYPE_STRING, &n, DBUS_TYPE_INVALID)) || !n || !*n) {
+            avahi_log_warn("Error parsing Server::GetAlternativeServiceName message");
+            goto fail;
+        }
+
+        t = avahi_alternative_service_name(n);
+        respond_string(c, m, t);
+        g_free(t);
+
+        return DBUS_HANDLER_RESULT_HANDLED;
         
     } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "EntryGroupNew")) {
         Client *client;
@@ -866,14 +1126,24 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
             goto fail;
         }
 
-        client = client_get(dbus_message_get_sender(m), TRUE);
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
+        }
 
         i = g_new(EntryGroupInfo, 1);
         i->id = ++client->current_id;
         i->client = client;
-        i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/EntryGroup%u", client->id, i->id);
+        i->path = g_strdup_printf("/Client%u/EntryGroup%u", client->id, i->id);
+        i->n_entries = 0;
         AVAHI_LLIST_PREPEND(EntryGroupInfo, entry_groups, client->entry_groups, i);
-
+        client->n_objects++;
+        
         if (!(i->entry_group = avahi_entry_group_new(avahi_server, entry_group_callback, i))) {
             avahi_log_warn("Failed to create entry group");
             entry_group_free(i);
@@ -900,12 +1170,21 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
             goto fail;
         }
 
-        client = client_get(dbus_message_get_sender(m), TRUE);
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
+        }
 
         i = g_new(HostNameResolverInfo, 1);
         i->client = client;
         i->message = dbus_message_ref(m);
         AVAHI_LLIST_PREPEND(HostNameResolverInfo, host_name_resolvers, client->host_name_resolvers, i);
+        client->n_objects++;
 
         if (!(i->host_name_resolver = avahi_host_name_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, (AvahiProtocol) aprotocol, host_name_resolver_callback, i))) {
             host_name_resolver_free(i);
@@ -934,16 +1213,24 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
 
         if (!avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a)) {
             avahi_log_warn("Error parsing address data");
-            return respond_error(c, m, "org.freedesktop.Avahi.InvalidAddressError", NULL);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_INVALID_ADDRESS, NULL);
+        }
+
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
         }
-        
-        client = client_get(dbus_message_get_sender(m), TRUE);
 
         i = g_new(AddressResolverInfo, 1);
         i->client = client;
         i->message = dbus_message_ref(m);
-
         AVAHI_LLIST_PREPEND(AddressResolverInfo, address_resolvers, client->address_resolvers, i);
+        client->n_objects++;
 
         if (!(i->address_resolver = avahi_address_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, &a, address_resolver_callback, i))) {
             address_resolver_free(i);
@@ -979,7 +1266,15 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
             goto fail;
         }
 
-        client = client_get(dbus_message_get_sender(m), TRUE);
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
+        }
 
         if (!*domain)
             domain = NULL;
@@ -987,9 +1282,9 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
         i = g_new(DomainBrowserInfo, 1);
         i->id = ++client->current_id;
         i->client = client;
-        i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/DomainBrowser%u", client->id, i->id);
-
+        i->path = g_strdup_printf("/Client%u/DomainBrowser%u", client->id, i->id);
         AVAHI_LLIST_PREPEND(DomainBrowserInfo, domain_browsers, client->domain_browsers, i);
+        client->n_objects++;
 
         if (!(i->domain_browser = avahi_domain_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, (AvahiDomainBrowserType) type, domain_browser_callback, i))) {
             avahi_log_warn("Failed to create domain browser");
@@ -1024,7 +1319,16 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
             goto fail;
         }
 
-        client = client_get(dbus_message_get_sender(m), TRUE);
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+
+
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
+        }
 
         if (!*domain)
             domain = NULL;
@@ -1032,9 +1336,9 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
         i = g_new(ServiceTypeBrowserInfo, 1);
         i->id = ++client->current_id;
         i->client = client;
-        i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/ServiceTypeBrowser%u", client->id, i->id);
-
+        i->path = g_strdup_printf("/Client%u/ServiceTypeBrowser%u", client->id, i->id);
         AVAHI_LLIST_PREPEND(ServiceTypeBrowserInfo, service_type_browsers, client->service_type_browsers, i);
+        client->n_objects++;
 
         if (!(i->service_type_browser = avahi_service_type_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, domain, service_type_browser_callback, i))) {
             avahi_log_warn("Failed to create service type browser");
@@ -1070,7 +1374,16 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
             goto fail;
         }
 
-        client = client_get(dbus_message_get_sender(m), TRUE);
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+
+
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
+        }
 
         if (!*domain)
             domain = NULL;
@@ -1078,9 +1391,9 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
         i = g_new(ServiceBrowserInfo, 1);
         i->id = ++client->current_id;
         i->client = client;
-        i->path = g_strdup_printf("/org/freedesktop/Avahi/Client%u/ServiceBrowser%u", client->id, i->id);
-
+        i->path = g_strdup_printf("/Client%u/ServiceBrowser%u", client->id, i->id);
         AVAHI_LLIST_PREPEND(ServiceBrowserInfo, service_browsers, client->service_browsers, i);
+        client->n_objects++;
 
         if (!(i->service_browser = avahi_service_browser_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, type, domain, service_browser_callback, i))) {
             avahi_log_warn("Failed to create service browser");
@@ -1090,11 +1403,56 @@ static DBusHandlerResult msg_server_impl(DBusConnection *c, DBusMessage *m, void
         
         dbus_connection_register_object_path(c, i->path, &vtable, i);
         return respond_path(c, m, i->path);
+        
+    } else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_SERVER, "ResolveService")) {
+        Client *client;
+        gint32 interface, protocol, aprotocol;
+        gchar *name, *type, *domain;
+        ServiceResolverInfo *i;
+            
+        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_INT32, &aprotocol,
+                DBUS_TYPE_INVALID) || !name || !*name || !type || !*type) {
+            avahi_log_warn("Error parsing Server::ResolveService message");
+            goto fail;
+        }
+
+        if (!(client = client_get(dbus_message_get_sender(m), TRUE))) {
+            avahi_log_warn("Too many clients, client request failed.");
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_CLIENTS, NULL);
+        }
+        
+        if (client->n_objects >= MAX_OBJECTS_PER_CLIENT) {
+            avahi_log_warn("Too many objects for client '%s', client request failed.", client->name);
+            return respond_error(c, m, AVAHI_DBUS_ERROR_TOO_MANY_OBJECTS, NULL);
+        }
+
+        if (!*domain)
+            domain = NULL;
+        
+        i = g_new(ServiceResolverInfo, 1);
+        i->client = client;
+        i->message = dbus_message_ref(m);
+        AVAHI_LLIST_PREPEND(ServiceResolverInfo, service_resolvers, client->service_resolvers, i);
+        client->n_objects++;
+
+        if (!(i->service_resolver = avahi_service_resolver_new(avahi_server, (AvahiIfIndex) interface, (AvahiProtocol) protocol, name, type, domain, (AvahiProtocol) aprotocol, service_resolver_callback, i))) {
+            service_resolver_free(i);
+            avahi_log_warn("Failed to create service resolver");
+            goto fail;
+        }
+        
+        return DBUS_HANDLER_RESULT_HANDLED;
      }
 
     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);
@@ -1133,6 +1491,7 @@ int dbus_protocol_setup(GMainLoop *loop) {
     server = g_malloc(sizeof(Server));
     server->clients = NULL;
     server->current_id = 0;
+    server->n_clients = 0;
 
     server->bus = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
     if (dbus_error_is_set(&error)) {
@@ -1175,6 +1534,8 @@ void dbus_protocol_shutdown(void) {
         while (server->clients)
             client_free(server->clients);
 
+        g_assert(server->n_clients == 0);
+
         if (server->bus) {
             dbus_connection_disconnect(server->bus);
             dbus_connection_unref(server->bus);