Merge pull request #33933 from yuwata/systemctl-bus-transport-and-runtime-scope

systemctl: fix bus transport and runtime scope handling

src/systemctl/systemctl-logind.c

@@ -432,6 +432,14 @@ int help_boot_loader_entry(void) {
         sd_bus *bus;
         int r;
 
+        /* This is called without checking runtime scope and bus transport like we do in parse_argv().
+         * Loading boot entries is only supported by system scope. Let's gracefully adjust them. */
+        arg_runtime_scope = RUNTIME_SCOPE_SYSTEM;
+        if (arg_transport == BUS_TRANSPORT_CAPSULE) {
+                arg_host = NULL;
+                arg_transport = BUS_TRANSPORT_LOCAL;
+        }
+
         r = acquire_bus(BUS_FULL, &bus);
         if (r < 0)
                 return r;

src/systemctl/systemctl.c

@@ -1075,6 +1075,10 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
                                        "Cannot access user instance remotely.");
 
+        if (arg_transport == BUS_TRANSPORT_CAPSULE && arg_runtime_scope != RUNTIME_SCOPE_USER)
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+                                       "Cannot access system instance with --capsule=/-C.");
+
         if (arg_wait && arg_no_block)
                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
                                        "--wait may not be combined with --no-block.");