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authorLennart Poettering <lennart@poettering.net>2012-12-23 22:12:01 +0100
committerLennart Poettering <lennart@poettering.net>2012-12-24 00:29:40 +0100
commitdc3a1b76a6a6f9dfe9b451f534587251b50a0685 (patch)
tree88b9761729deb9d3c69b57cbd035b1a5d3499091
parent679b7d791241eb52e15e4914e0d5709f67ff5123 (diff)
logind: don't allow suspending/hibernating if the kernel doesn't support it
-rw-r--r--src/login/logind-action.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/login/logind-action.c b/src/login/logind-action.c
index bd5664e905..e1517d6ac2 100644
--- a/src/login/logind-action.c
+++ b/src/login/logind-action.c
@@ -19,6 +19,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <unistd.h>
+
#include "conf-parser.h"
#include "special.h"
#include "dbus-common.h"
@@ -54,6 +56,7 @@ int manager_handle_action(
DBusError error;
int r;
InhibitWhat inhibit_operation;
+ bool supported = true;
assert(m);
@@ -63,6 +66,20 @@ int manager_handle_action(
return 0;
}
+ if (handle == HANDLE_SUSPEND)
+ supported = can_sleep("mem") > 0;
+ else if (handle == HANDLE_HIBERNATE)
+ supported = can_sleep("disk") > 0;
+ else if (handle == HANDLE_HYBRID_SLEEP)
+ supported = can_sleep("disk") > 0 && can_sleep_disk("suspend") > 0;
+ else if (handle == HANDLE_KEXEC)
+ supported = access("/sbin/kexec", X_OK) >= 0;
+
+ if (!supported) {
+ log_warning("Requested operation not supported, ignoring.");
+ return -ENOTSUP;
+ }
+
/* If the key handling is inhibited, don't do anything */
if (inhibit_key > 0) {
if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0)) {