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authorLennart Poettering <lennart@poettering.net>2015-01-28 02:18:59 +0100
committerLennart Poettering <lennart@poettering.net>2015-01-28 02:18:59 +0100
commit2e5c94b9aaefce46835b623e800cfc168995ea3f (patch)
treefd08747425942a062e225497aa850dfa0b3ecc9d /src
parenta986501b9059b72e8deced262554fbdd1ab9da17 (diff)
core: when the user hits Ctrl-Alt-Del more than 7x per 2s, reboot immediately
This should be useful for cases where clean rebooting doesn't work, and the user wants to hurry up the reboot.
Diffstat (limited to 'src')
-rw-r--r--src/core/manager.c16
-rw-r--r--src/core/manager.h10
-rw-r--r--src/core/unit-printf.c2
3 files changed, 23 insertions, 5 deletions
diff --git a/src/core/manager.c b/src/core/manager.c
index e2df91196e..336ec1ed78 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -549,6 +549,9 @@ int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
m->test_run = test_run;
+ /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */
+ RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7);
+
r = manager_default_environment(m);
if (r < 0)
goto fail;
@@ -1721,7 +1724,18 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t
case SIGINT:
if (m->running_as == SYSTEMD_SYSTEM) {
- manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
+
+ /* If the user presses C-A-D too more
+ * than 7 times within 2s, we reboot
+ * immediately. */
+
+ if (ratelimit_test(&m->ctrl_alt_del_ratelimit))
+ manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
+ else {
+ log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
+ m->exit_code = MANAGER_REBOOT;
+ }
+
break;
}
diff --git a/src/core/manager.h b/src/core/manager.h
index 19fb0a901d..d3971f1684 100644
--- a/src/core/manager.h
+++ b/src/core/manager.h
@@ -29,6 +29,10 @@
#include "sd-event.h"
#include "fdset.h"
#include "cgroup-util.h"
+#include "hashmap.h"
+#include "list.h"
+#include "set.h"
+#include "ratelimit.h"
/* Enforce upper limit how many names we allow */
#define MANAGER_MAX_NAMES 131072 /* 128K */
@@ -68,9 +72,6 @@ typedef enum StatusType {
#include "unit.h"
#include "job.h"
-#include "hashmap.h"
-#include "list.h"
-#include "set.h"
#include "path-lookup.h"
#include "execute.h"
#include "unit-name.h"
@@ -295,6 +296,9 @@ struct Manager {
/* Used for processing polkit authorization responses */
Hashmap *polkit_registry;
+
+ /* When the user hits C-A-D more than 7 times per 2s, reboot immediately... */
+ RateLimit ctrl_alt_del_ratelimit;
};
int manager_new(SystemdRunningAs running_as, bool test_run, Manager **m);
diff --git a/src/core/unit-printf.c b/src/core/unit-printf.c
index 62599d0813..97135db551 100644
--- a/src/core/unit-printf.c
+++ b/src/core/unit-printf.c
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "systemd/sd-id128.h"
+#include "sd-id128.h"
#include "unit.h"
#include "specifier.h"
#include "path-util.h"