-static int synthesize_name_acquired(sd_bus *a, sd_bus *b, sd_bus_message *m) {
- _cleanup_bus_message_unref_ sd_bus_message *n = NULL;
- const char *name, *old_owner, *new_owner;
- int r;
-
- assert(a);
- assert(b);
- assert(m);
-
- /* If we get NameOwnerChanged for our own name, we need to
- * synthesize NameLost/NameAcquired, since socket clients need
- * that, even though it is obsoleted on kdbus */
-
- if (!a->is_kernel)
- return 0;
-
- if (!sd_bus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged") ||
- !streq_ptr(m->path, "/org/freedesktop/DBus") ||
- !streq_ptr(m->sender, "org.freedesktop.DBus"))
- return 0;
-
- r = sd_bus_message_read(m, "sss", &name, &old_owner, &new_owner);
- if (r < 0)
- return r;
-
- r = sd_bus_message_rewind(m, true);
- if (r < 0)
- return r;
-
- if (streq(old_owner, a->unique_name)) {
-
- r = sd_bus_message_new_signal(
- b,
- &n,
- "/org/freedesktop/DBus",
- "org.freedesktop.DBus",
- "NameLost");
-
- } else if (streq(new_owner, a->unique_name)) {
-
- r = sd_bus_message_new_signal(
- b,
- &n,
- "/org/freedesktop/DBus",
- "org.freedesktop.DBus",
- "NameAcquired");
- } else
- return 0;
-
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(n, "s", name);
- if (r < 0)
- return r;
-
- r = bus_message_append_sender(n, "org.freedesktop.DBus");
- if (r < 0)
- return r;
-
- r = bus_seal_synthetic_message(b, n);
- if (r < 0)
- return r;
-
- return sd_bus_send(b, n, NULL);
-}
-
-static int process_policy(sd_bus *a, sd_bus *b, sd_bus_message *m) {
- _cleanup_bus_message_unref_ sd_bus_message *n = NULL;
- int r;
-
- assert(a);
- assert(b);
- assert(m);
-
- if (!a->is_kernel)
- return 0;
-
- if (!sd_bus_message_is_method_call(m, "org.freedesktop.DBus.Properties", "GetAll"))
- return 0;
-
- if (!streq_ptr(m->path, "/org/gnome/DisplayManager/Slave"))
- return 0;
-
- r = sd_bus_message_new_method_errorf(m, &n, SD_BUS_ERROR_ACCESS_DENIED, "gdm, you are stupid");
- if (r < 0)
- return r;
-
- r = bus_message_append_sender(n, "org.freedesktop.DBus");
- if (r < 0) {
- log_error("Failed to append sender to gdm reply: %s", strerror(-r));
- return r;
- }
-
- r = bus_seal_synthetic_message(b, n);
- if (r < 0) {
- log_error("Failed to seal gdm reply: %s", strerror(-r));
- return r;
- }
-
- r = sd_bus_send(b, n, NULL);
- if (r < 0) {
- log_error("Failed to send gdm reply: %s", strerror(-r));
- return r;
- }
-
- return 1;
-}
-
-static int synthetic_driver_send(sd_bus *b, sd_bus_message *m) {
- int r;
-
- assert(b);
- assert(m);
-
- r = bus_message_append_sender(m, "org.freedesktop.DBus");
- if (r < 0)
- return r;
-
- r = bus_seal_synthetic_message(b, m);
- if (r < 0)
- return r;
-
- return sd_bus_send(b, m, NULL);
-}
-
-static int synthetic_reply_method_error(sd_bus_message *call, const sd_bus_error *e) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- int r;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- r = sd_bus_message_new_method_error(call, &m, e);
- if (r < 0)
- return r;
-
- return synthetic_driver_send(call->bus, m);
-}
-
-static int synthetic_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *p) {
-
- _cleanup_bus_error_free_ sd_bus_error berror = SD_BUS_ERROR_NULL;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- if (sd_bus_error_is_set(p))
- return synthetic_reply_method_error(call, p);
-
- sd_bus_error_set_errno(&berror, error);
-
- return synthetic_reply_method_error(call, &berror);
-}
-
-static int synthetic_reply_method_return(sd_bus_message *call, const char *types, ...) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- int r;
-
- assert(call);
-
- if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
- return 0;
-
- r = sd_bus_message_new_method_return(call, &m);
- if (r < 0)
- return r;
-
- if (!isempty(types)) {
- va_list ap;
-
- va_start(ap, types);
- r = bus_message_append_ap(m, types, ap);
- va_end(ap);
- if (r < 0)
- return r;
- }
-
- return synthetic_driver_send(call->bus, m);
-}
-
-static int synthetic_reply_return_strv(sd_bus_message *call, char **l) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- int r;
-
- assert(call);
-
- r = sd_bus_message_new_method_return(call, &m);
- if (r < 0)
- return synthetic_reply_method_errno(call, r, NULL);
-
- r = sd_bus_message_append_strv(m, l);
- if (r < 0)
- return synthetic_reply_method_errno(call, r, NULL);
-
- return synthetic_driver_send(call->bus, m);
-}
-
-static int get_creds_by_name(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
- _cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
- int r;
-
- assert(bus);
- assert(name);
- assert(_creds);
-
- assert_return(service_name_is_valid(name), -EINVAL);
-
- r = sd_bus_get_name_creds(bus, name, mask, &c);