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dbus: refuse Manager1.Suspend in bootstrap and shutdown

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The legacy INIT_CMD_SUSPEND is refused in runlevel S, 0, and 6, the
bus method suspended unconditionally, even mid-shutdown.  Add the
same guard, replying WrongRunlevel like the reboot family.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg committed 2026-08-16 22:03:36 +02:00
1 parent 8138b402a0
commit 8114508bbb
1 file changed
+4
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src/dbus.c
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@@ -535,6 +535,10 @@ static int manager_signal(link_call_t *call, void *u)
static int manager_suspend(link_call_t *call, void *u) static int manager_suspend(link_call_t *call, void *u)
{ {
(void)u; (void)u;
if (IS_RESERVED_RUNLEVEL(runlevel))
return link_call_reply_error(call,
"org.finit.Error.WrongRunlevel",
"Unsupported command in runlevel S and 6/0");
sync(); sync();
if (suspend() < 0) { if (suspend() < 0) {
const char *msg = (errno == EINVAL) const char *msg = (errno == EINVAL)