Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 677 insertions, 0 deletions

diff --git a/src/libsystemd/sd-bus/test-bus-objects.c b/src/libsystemd/sd-bus/test-bus-objects.c
new file mode 100644
index 0000000..ccdd0d5
--- /dev/null
+++ b/src/libsystemd/sd-bus/test-bus-objects.c
@@ -0,0 +1,677 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <pthread.h>
+#include <stdlib.h>
+
+#include "sd-bus.h"
+
+#include "alloc-util.h"
+#include "bus-dump.h"
+#include "bus-internal.h"
+#include "bus-message.h"
+#include "log.h"
+#include "macro.h"
+#include "strv.h"
+#include "tests.h"
+
+struct context {
+        int fds[2];
+        bool quit;
+        char *something;
+        char *automatic_string_property;
+        uint32_t automatic_integer_property;
+};
+
+static int something_handler(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        struct context *c = userdata;
+        const char *s;
+        char *n = NULL;
+        int r;
+
+        r = sd_bus_message_read(m, "s", &s);
+        assert_se(r > 0);
+
+        n = strjoin("<<<", s, ">>>");
+        assert_se(n);
+
+        free(c->something);
+        c->something = n;
+
+        log_info("AlterSomething() called, got %s, returning %s", s, n);
+
+        /* This should fail, since the return type doesn't match */
+        assert_se(sd_bus_reply_method_return(m, "u", 4711) == -ENOMSG);
+
+        r = sd_bus_reply_method_return(m, "s", n);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int exit_handler(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        struct context *c = userdata;
+        int r;
+
+        c->quit = true;
+
+        log_info("Exit called");
+
+        r = sd_bus_reply_method_return(m, "");
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int get_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
+        struct context *c = userdata;
+        int r;
+
+        log_info("property get for %s called, returning \"%s\".", property, c->something);
+
+        r = sd_bus_message_append(reply, "s", c->something);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int set_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *error) {
+        struct context *c = userdata;
+        const char *s;
+        char *n;
+        int r;
+
+        log_info("property set for %s called", property);
+
+        r = sd_bus_message_read(value, "s", &s);
+        assert_se(r >= 0);
+
+        n = strdup(s);
+        assert_se(n);
+
+        free(c->something);
+        c->something = n;
+
+        return 1;
+}
+
+static int value_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
+        _cleanup_free_ char *s = NULL;
+        const char *x;
+        int r;
+
+        assert_se(asprintf(&s, "object %p, path %s", userdata, path) >= 0);
+        r = sd_bus_message_append(reply, "s", s);
+        assert_se(r >= 0);
+
+        assert_se(x = startswith(path, "/value/"));
+
+        assert_se(PTR_TO_UINT(userdata) == 30);
+
+        return 1;
+}
+
+static int notify_test(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int r;
+
+        assert_se(sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), m->path, "org.freedesktop.systemd.ValueTest", "Value", NULL) >= 0);
+
+        r = sd_bus_reply_method_return(m, NULL);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int notify_test2(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int r;
+
+        assert_se(sd_bus_emit_properties_changed_strv(sd_bus_message_get_bus(m), m->path, "org.freedesktop.systemd.ValueTest", NULL) >= 0);
+
+        r = sd_bus_reply_method_return(m, NULL);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int emit_interfaces_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int r;
+
+        assert_se(sd_bus_emit_interfaces_added(sd_bus_message_get_bus(m), "/value/a/x", "org.freedesktop.systemd.ValueTest", NULL) >= 0);
+
+        r = sd_bus_reply_method_return(m, NULL);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int emit_interfaces_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int r;
+
+        assert_se(sd_bus_emit_interfaces_removed(sd_bus_message_get_bus(m), "/value/a/x", "org.freedesktop.systemd.ValueTest", NULL) >= 0);
+
+        r = sd_bus_reply_method_return(m, NULL);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int emit_object_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int r;
+
+        assert_se(sd_bus_emit_object_added(sd_bus_message_get_bus(m), "/value/a/x") >= 0);
+
+        r = sd_bus_reply_method_return(m, NULL);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static int emit_object_with_manager_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        assert_se(sd_bus_emit_object_added(sd_bus_message_get_bus(m), "/value/a") >= 0);
+
+        return ASSERT_SE_NONNEG(sd_bus_reply_method_return(m, NULL));
+}
+
+static int emit_object_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int r;
+
+        assert_se(sd_bus_emit_object_removed(sd_bus_message_get_bus(m), "/value/a/x") >= 0);
+
+        r = sd_bus_reply_method_return(m, NULL);
+        assert_se(r >= 0);
+
+        return 1;
+}
+
+static const sd_bus_vtable vtable[] = {
+        SD_BUS_VTABLE_START(0),
+        SD_BUS_METHOD("AlterSomething", "s", "s", something_handler, 0),
+        SD_BUS_METHOD("Exit", "", "", exit_handler, 0),
+        SD_BUS_WRITABLE_PROPERTY("Something", "s", get_handler, set_handler, 0, 0),
+        SD_BUS_WRITABLE_PROPERTY("AutomaticStringProperty", "s", NULL, NULL, offsetof(struct context, automatic_string_property), 0),
+        SD_BUS_WRITABLE_PROPERTY("AutomaticIntegerProperty", "u", NULL, NULL, offsetof(struct context, automatic_integer_property), 0),
+        SD_BUS_METHOD("NoOperation", NULL, NULL, NULL, 0),
+        SD_BUS_METHOD("EmitInterfacesAdded", NULL, NULL, emit_interfaces_added, 0),
+        SD_BUS_METHOD("EmitInterfacesRemoved", NULL, NULL, emit_interfaces_removed, 0),
+        SD_BUS_METHOD("EmitObjectAdded", NULL, NULL, emit_object_added, 0),
+        SD_BUS_METHOD("EmitObjectWithManagerAdded", NULL, NULL, emit_object_with_manager_added, 0),
+        SD_BUS_METHOD("EmitObjectRemoved", NULL, NULL, emit_object_removed, 0),
+        SD_BUS_VTABLE_END
+};
+
+static const sd_bus_vtable vtable2[] = {
+        SD_BUS_VTABLE_START(0),
+        SD_BUS_METHOD("NotifyTest", "", "", notify_test, 0),
+        SD_BUS_METHOD("NotifyTest2", "", "", notify_test2, 0),
+        SD_BUS_PROPERTY("Value", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+        SD_BUS_PROPERTY("Value2", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
+        SD_BUS_PROPERTY("Value3", "s", value_handler, 10, SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("Value4", "s", value_handler, 10, 0),
+        SD_BUS_PROPERTY("AnExplicitProperty", "s", NULL, offsetof(struct context, something), SD_BUS_VTABLE_PROPERTY_EXPLICIT|SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
+        SD_BUS_VTABLE_END
+};
+
+static int enumerator_callback(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+
+        if (object_path_startswith("/value", path))
+                assert_se(*nodes = strv_new("/value/a", "/value/b", "/value/c"));
+
+        return 1;
+}
+
+static int enumerator2_callback(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+
+        if (object_path_startswith("/value/a", path))
+                assert_se(*nodes = strv_new("/value/a/x", "/value/a/y", "/value/a/z"));
+
+        return 1;
+}
+
+static int enumerator3_callback(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+        _cleanup_strv_free_ char **v = NULL;
+
+        if (!object_path_startswith("/value/b", path))
+                return 1;
+
+        for (unsigned i = 0; i < 30; i++)
+                assert_se(strv_extendf(&v, "/value/b/%u", i) >= 0);
+
+        *nodes = TAKE_PTR(v);
+        return 1;
+}
+
+static void *server(void *p) {
+        struct context *c = p;
+        sd_bus *bus = NULL;
+        sd_id128_t id;
+        int r;
+
+        c->quit = false;
+
+        assert_se(sd_id128_randomize(&id) >= 0);
+
+        assert_se(sd_bus_new(&bus) >= 0);
+        assert_se(sd_bus_set_fd(bus, c->fds[0], c->fds[0]) >= 0);
+        assert_se(sd_bus_set_server(bus, 1, id) >= 0);
+
+        assert_se(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.test", vtable, c) >= 0);
+        assert_se(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.test2", vtable, c) >= 0);
+        assert_se(sd_bus_add_fallback_vtable(bus, NULL, "/value", "org.freedesktop.systemd.ValueTest", vtable2, NULL, UINT_TO_PTR(20)) >= 0);
+        assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value", enumerator_callback, NULL) >= 0);
+        assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value/a", enumerator2_callback, NULL) >= 0);
+        assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value/b", enumerator3_callback, NULL) >= 0);
+        assert_se(sd_bus_add_object_manager(bus, NULL, "/value") >= 0);
+        assert_se(sd_bus_add_object_manager(bus, NULL, "/value/a") >= 0);
+
+        assert_se(sd_bus_start(bus) >= 0);
+
+        log_error("Entering event loop on server");
+
+        while (!c->quit) {
+                log_error("Loop!");
+
+                r = sd_bus_process(bus, NULL);
+                if (r < 0) {
+                        log_error_errno(r, "Failed to process requests: %m");
+                        goto fail;
+                }
+
+                if (r == 0) {
+                        r = sd_bus_wait(bus, UINT64_MAX);
+                        if (r < 0) {
+                                log_error_errno(r, "Failed to wait: %m");
+                                goto fail;
+                        }
+
+                        continue;
+                }
+        }
+
+        r = 0;
+
+fail:
+        if (bus) {
+                sd_bus_flush(bus);
+                sd_bus_unref(bus);
+        }
+
+        return INT_TO_PTR(r);
+}
+
+static int client(struct context *c) {
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        _cleanup_strv_free_ char **lines = NULL;
+        const char *s;
+        int r;
+
+        assert_se(sd_bus_new(&bus) >= 0);
+        assert_se(sd_bus_set_fd(bus, c->fds[1], c->fds[1]) >= 0);
+        assert_se(sd_bus_start(bus) >= 0);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "NoOperation", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "s", "hallo");
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        assert_se(streq(s, "<<<hallo>>>"));
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Doesntexist", &error, &reply, "");
+        assert_se(r < 0);
+        assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD));
+
+        sd_bus_error_free(&error);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Doesntexist", &error, &reply, NULL); /* NULL and "" are equivalent */
+        assert_se(r < 0);
+        assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD));
+
+        sd_bus_error_free(&error);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "as", 1, "hallo");
+        assert_se(r < 0);
+        assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS));
+
+        sd_bus_error_free(&error);
+
+        r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s");
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        assert_se(streq(s, "<<<hallo>>>"));
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, "s", "test");
+        assert_se(r >= 0);
+
+        r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s");
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        assert_se(streq(s, "test"));
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AutomaticIntegerProperty", &error, "u", 815);
+        assert_se(r >= 0);
+
+        assert_se(c->automatic_integer_property == 815);
+
+        r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AutomaticStringProperty", &error, "s", "Du Dödel, Du!");
+        assert_se(r >= 0);
+
+        assert_se(streq(c->automatic_string_property, "Du Dödel, Du!"));
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        fputs(s, stdout);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, NULL); /* NULL and "" are equivalent */
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        fputs(s, stdout);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/value/xuzz", "org.freedesktop.systemd.ValueTest", "Value", &error, &reply, "s");
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        log_info("read %s", s);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        fputs(s, stdout);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        fputs(s, stdout);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        fputs(s, stdout);
+
+        assert_se(lines = strv_split_newlines(s));
+        assert_se(strv_contains(lines, " <node name=\"x\"/>"));
+        assert_se(strv_contains(lines, " <node name=\"y\"/>"));
+        assert_se(strv_contains(lines, " <node name=\"z\"/>"));
+        lines = strv_free(lines);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/b", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_message_read(reply, "s", &s);
+        assert_se(r >= 0);
+        fputs(s, stdout);
+
+        assert_se(lines = strv_split_newlines(s));
+        for (unsigned i = 0; i < 30; i++) {
+                _cleanup_free_ char *n = NULL;
+
+                assert_se(asprintf(&n, " <node name=\"%u\"/>", i) >= 0);
+                assert_se(strv_contains(lines, n));
+        }
+        lines = strv_free(lines);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", NULL);
+        assert_se(r >= 0);
+
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "org.freedesktop.systemd.ValueTest2");
+        assert_se(r < 0);
+        assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_INTERFACE));
+        sd_bus_error_free(&error);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.ObjectManager", "GetManagedObjects", &error, &reply, NULL);
+        assert_se(r < 0);
+        assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD));
+        sd_bus_error_free(&error);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.ObjectManager", "GetManagedObjects", &error, &reply, NULL);
+        assert_se(r >= 0);
+
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        /* Check that /value/b does not have ObjectManager interface but /value/a does */
+        assert_se(sd_bus_message_rewind(reply, 1) > 0);
+        assert_se(sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{oa{sa{sv}}}") > 0);
+        while (ASSERT_SE_NONNEG(sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "oa{sa{sv}}")) > 0) {
+                const char *path = NULL;
+                assert_se(sd_bus_message_read_basic(reply, 'o', &path) > 0);
+                if (STR_IN_SET(path, "/value/b", "/value/a")) {
+                        /* Check that there is no object manager interface here */
+                        bool found_object_manager_interface = false;
+                        assert_se(sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sa{sv}}") > 0);
+                        while (ASSERT_SE_NONNEG(sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sa{sv}")) > 0) {
+                                const char *interface_name = NULL;
+                                assert_se(sd_bus_message_read_basic(reply, 's', &interface_name) > 0);
+
+                                if (streq(interface_name, "org.freedesktop.DBus.ObjectManager")) {
+                                        assert_se(!streq(path, "/value/b"));
+                                        found_object_manager_interface = true;
+                                }
+
+                                assert_se(sd_bus_message_skip(reply, "a{sv}") >= 0);
+                                assert_se(sd_bus_message_exit_container(reply) >= 0);
+                        }
+                        assert_se(sd_bus_message_exit_container(reply) >= 0);
+
+                        if (streq(path, "/value/a")) {
+                                /* ObjectManager must be here */
+                                assert_se(found_object_manager_interface);
+                        }
+
+                } else
+                        assert_se(sd_bus_message_skip(reply, "a{sa{sv}}") >= 0);
+
+                assert_se(sd_bus_message_exit_container(reply) >= 0);
+        }
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.systemd.ValueTest", "NotifyTest", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_process(bus, &reply);
+        assert_se(r > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.Properties", "PropertiesChanged"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.systemd.ValueTest", "NotifyTest2", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_process(bus, &reply);
+        assert_se(r > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.Properties", "PropertiesChanged"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitInterfacesAdded", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_process(bus, &reply);
+        assert_se(r > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitInterfacesRemoved", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_process(bus, &reply);
+        assert_se(r > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitObjectAdded", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_process(bus, &reply);
+        assert_se(r > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        /* Check if /value/a/x does not have org.freedesktop.DBus.ObjectManager */
+        assert_se(sd_bus_message_rewind(reply, 1) >= 0);
+        const char* should_be_value_a_x = NULL;
+        assert_se(sd_bus_message_read_basic(reply, 'o', &should_be_value_a_x) > 0);
+        assert_se(streq(should_be_value_a_x, "/value/a/x"));
+        assert_se(sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sa{sv}}") > 0);
+        while (ASSERT_SE_NONNEG(sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sa{sv}")) > 0) {
+                const char* interface_name = NULL;
+                assert_se(sd_bus_message_read_basic(reply, 's', &interface_name) > 0);
+
+                assert(!streq(interface_name, "org.freedesktop.DBus.ObjectManager"));
+
+                assert_se(sd_bus_message_skip(reply, "a{sv}") >= 0);
+
+                assert_se(sd_bus_message_exit_container(reply) >= 0);
+        }
+
+        reply = sd_bus_message_unref(reply);
+
+        assert_se(sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitObjectWithManagerAdded", &error, NULL, NULL) >= 0);
+
+        assert_se(sd_bus_process(bus, &reply) > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        /* Check if /value/a has org.freedesktop.DBus.ObjectManager */
+        assert_se(sd_bus_message_rewind(reply, 1) >= 0);
+        const char* should_be_value_a = NULL;
+        bool found_object_manager = false;
+        assert_se(sd_bus_message_read_basic(reply, 'o', &should_be_value_a) > 0);
+        assert_se(streq(should_be_value_a, "/value/a"));
+        assert_se(sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sa{sv}}") > 0);
+        while (ASSERT_SE_NONNEG(sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sa{sv}")) > 0) {
+                const char* interface_name = NULL;
+                assert_se(sd_bus_message_read_basic(reply, 's', &interface_name));
+
+                if (streq(interface_name, "org.freedesktop.DBus.ObjectManager")) {
+                        found_object_manager = true;
+                        break;
+                }
+
+                assert_se(sd_bus_message_skip(reply, "a{sv}") >= 0);
+
+                assert_se(sd_bus_message_exit_container(reply) >= 0);
+        }
+        assert_se(found_object_manager);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "EmitObjectRemoved", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        r = sd_bus_process(bus, &reply);
+        assert_se(r > 0);
+
+        assert_se(sd_bus_message_is_signal(reply, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved"));
+        sd_bus_message_dump(reply, stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+        /* Check if /value/a/x does not have org.freedesktop.DBus.ObjectManager */
+        assert_se(sd_bus_message_rewind(reply, 1) >= 0);
+        should_be_value_a_x = NULL;
+        assert_se(sd_bus_message_read_basic(reply, 'o', &should_be_value_a_x) > 0);
+        assert_se(streq(should_be_value_a_x, "/value/a/x"));
+        assert_se(sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s") > 0);
+        const char* deleted_interface_name = NULL;
+        while (ASSERT_SE_NONNEG(sd_bus_message_read_basic(reply, 's', &deleted_interface_name)) > 0) {
+                assert(!streq(deleted_interface_name, "org.freedesktop.DBus.ObjectManager"));
+        }
+        assert_se(sd_bus_message_exit_container(reply) >= 0);
+
+        reply = sd_bus_message_unref(reply);
+
+        r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Exit", &error, NULL, NULL);
+        assert_se(r >= 0);
+
+        sd_bus_flush(bus);
+
+        return 0;
+}
+
+int main(int argc, char *argv[]) {
+        struct context c = {};
+        pthread_t s;
+        void *p;
+        int r, q;
+
+        test_setup_logging(LOG_DEBUG);
+
+        c.automatic_integer_property = 4711;
+        assert_se(c.automatic_string_property = strdup("dudeldu"));
+
+        assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, c.fds) >= 0);
+
+        r = pthread_create(&s, NULL, server, &c);
+        if (r != 0)
+                return -r;
+
+        r = client(&c);
+
+        q = pthread_join(s, &p);
+        if (q != 0)
+                return -q;
+
+        if (r < 0)
+                return r;
+
+        if (PTR_TO_INT(p) < 0)
+                return PTR_TO_INT(p);
+
+        free(c.something);
+        free(c.automatic_string_property);
+
+        return EXIT_SUCCESS;
+}