core: define "exit" and "exit-force" actions for user units and only accept that

We would accept e.g. FailureAction=reboot-force in user units and then do an
exit in the user manager. Let's be stricter, and define "exit"/"exit-force" as
the only supported actions in user units.

v2:
- rename 'exit' to 'exit-force' and add new 'exit'
- add test for the parsing function

2 files changed, 56 insertions, 0 deletions

diff --git a/src/test/meson.build b/src/test/meson.build
index 2e003f1fd2..a1770213a8 100644
--- a/src/test/meson.build
+++ b/src/test/meson.build
@@ -63,6 +63,11 @@ tests += [
           libmount,
           libblkid]],
 
+        [['src/test/test-emergency-action.c'],
+         [libcore,
+          libshared],
+         []],
+
         [['src/test/test-job-type.c'],
          [libcore,
           libshared],
diff --git a/src/test/test-emergency-action.c b/src/test/test-emergency-action.c
new file mode 100644
index 0000000000..493b23227e
--- /dev/null
+++ b/src/test/test-emergency-action.c
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "emergency-action.h"
+#include "tests.h"
+
+static void test_parse_emergency_action(void) {
+        EmergencyAction x;
+
+        log_info("/* %s */", __func__);
+
+        assert_se(parse_emergency_action("none", false, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_NONE);
+        assert_se(parse_emergency_action("reboot", false, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("reboot-force", false, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("reboot-immediate", false, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("poweroff", false, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("poweroff-force", false, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("poweroff-immediate", false, &x) == -EOPNOTSUPP);
+        assert_se(x == EMERGENCY_ACTION_NONE);
+        assert_se(parse_emergency_action("exit", false, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_EXIT);
+        assert_se(parse_emergency_action("exit-force", false, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_EXIT_FORCE);
+        assert_se(parse_emergency_action("exit-forcee", false, &x) == -EINVAL);
+
+        assert_se(parse_emergency_action("none", true, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_NONE);
+        assert_se(parse_emergency_action("reboot", true, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_REBOOT);
+        assert_se(parse_emergency_action("reboot-force", true, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_REBOOT_FORCE);
+        assert_se(parse_emergency_action("reboot-immediate", true, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_REBOOT_IMMEDIATE);
+        assert_se(parse_emergency_action("poweroff", true, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_POWEROFF);
+        assert_se(parse_emergency_action("poweroff-force", true, &x) == 0);
+        assert_se(x == EMERGENCY_ACTION_POWEROFF_FORCE);
+        assert_se(parse_emergency_action("poweroff-immediate", true, &x) == 0);
+        assert_se(parse_emergency_action("exit", true, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("exit-force", true, &x) == -EOPNOTSUPP);
+        assert_se(parse_emergency_action("exit-forcee", true, &x) == -EINVAL);
+        assert_se(x == EMERGENCY_ACTION_POWEROFF_IMMEDIATE);
+}
+
+int main(int argc, char **argv) {
+        test_setup_logging(LOG_INFO);
+
+        test_parse_emergency_action();
+
+        return EXIT_SUCCESS;
+}