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logind: don't allow suspending/hibernating if the kernel doesn't support it

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This commit is contained in:
Lennart Poettering 2012-12-23 22:12:01 +01:00
parent 679b7d7912
commit dc3a1b76a6
1 changed files with 17 additions and 0 deletions
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17
src/login/logind-action.c
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@ -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)) {