From 2170d1e510a9c30e71bc642b54d8b71fb01b47bc Mon Sep 17 00:00:00 2001

From: Lukas Nykryn <lnykryn@redhat.com>

Date: Tue, 18 Oct 2016 12:16:32 +0200

Subject: [PATCH] core: use emergency_action for ctr+alt+del burst

Fixes #4306

Cherry-picked from: ae8c7939df962cbf660b2b9517fe46be272f58b9

Resolves: #1353028

---

 man/systemd-system.conf.xml |  7 ++++---

 src/core/main.c             |  7 +++----

 src/core/manager.c          | 33 ++++-----------------------------

 src/core/manager.h          | 13 +------------

 4 files changed, 12 insertions(+), 48 deletions(-)

diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml

index 236c20d5f..57b3b90be 100644

--- a/man/systemd-system.conf.xml

+++ b/man/systemd-system.conf.xml

@@ -105,9 +105,10 @@

         <term><varname>CtrlAltDelBurstAction=</varname></term>

         <listitem><para>Defines what action will be performed

-        if user presses Ctr-Alt-Delete more than 7 times in 2s.

-        Can be set to <literal>reboot-force</literal>, <literal>poweroff-force</literal>

-        or disabled with <literal>ignore</literal>. Defaults to

+        if user presses Ctrl-Alt-Delete more than 7 times in 2s.

+        Can be set to <literal>reboot-force</literal>, <literal>poweroff-force</literal>,

+        <literal>reboot-immediate</literal>, <literal>poweroff-immediate</literal>

+        or disabled with <literal>none</literal>. Defaults to

         <literal>reboot-force</literal>.

         </para></listitem>

       </varlistentry>

diff --git a/src/core/main.c b/src/core/main.c

index 6ac9c9d44..6f8367632 100644

--- a/src/core/main.c

+++ b/src/core/main.c

@@ -77,6 +77,7 @@

 #include "ima-setup.h"

 #include "smack-setup.h"

 #include "kmod-setup.h"

+#include "emergency-action.h"

 static enum {

         ACTION_RUN,

@@ -115,7 +116,7 @@ static FILE* arg_serialization = NULL;

 static bool arg_default_cpu_accounting = false;

 static bool arg_default_blockio_accounting = false;

 static bool arg_default_memory_accounting = false;

-static CADBurstAction arg_cad_burst_action = CAD_BURST_ACTION_REBOOT;

+static EmergencyAction arg_cad_burst_action = EMERGENCY_ACTION_REBOOT_FORCE;

 static void nop_handler(int sig) {}

@@ -626,8 +627,6 @@ static int config_parse_join_controllers(const char *unit,

         return 0;

 }

-static DEFINE_CONFIG_PARSE_ENUM(config_parse_cad_burst_action, cad_burst_action, CADBurstAction, "Failed to parse service restart specifier");

-

 static int parse_config_file(void) {

         const ConfigTableItem items[] = {

@@ -676,7 +675,7 @@ static int parse_config_file(void) {

                 { "Manager", "DefaultCPUAccounting",      config_parse_bool,             0, &arg_default_cpu_accounting            },

                 { "Manager", "DefaultBlockIOAccounting",  config_parse_bool,             0, &arg_default_blockio_accounting        },

                 { "Manager", "DefaultMemoryAccounting",   config_parse_bool,             0, &arg_default_memory_accounting         },

-                { "Manager", "CtrlAltDelBurstAction",     config_parse_cad_burst_action, 0, &arg_cad_burst_action},

+                { "Manager", "CtrlAltDelBurstAction",     config_parse_emergency_action, 0, &arg_cad_burst_action                  },

                 {}

         };

diff --git a/src/core/manager.c b/src/core/manager.c

index 9048dde96..8bd80e687 100644

--- a/src/core/manager.c

+++ b/src/core/manager.c

@@ -1864,28 +1864,11 @@ static void manager_handle_ctrl_alt_del(Manager *m) {

          * 7 times within 2s, we reboot/shutdown immediately,

          * unless it was disabled in system.conf */

-        if (ratelimit_test(&m->ctrl_alt_del_ratelimit) || m->cad_burst_action == CAD_BURST_ACTION_IGNORE)

+        if (ratelimit_test(&m->ctrl_alt_del_ratelimit) || m->cad_burst_action == EMERGENCY_ACTION_NONE)

                 manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);

-        else {

-                switch (m->cad_burst_action) {

-

-                case CAD_BURST_ACTION_REBOOT:

-                        m->exit_code = MANAGER_REBOOT;

-                        break;

-

-                case CAD_BURST_ACTION_POWEROFF:

-                        m->exit_code = MANAGER_POWEROFF;

-                        break;

-

-                default:

-                        assert_not_reached("Unknown action.");

-                }

-

-                log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, performing immediate %s.",

-                                cad_burst_action_to_string(m->cad_burst_action));

-                status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, performing immediate %s.",

-                                cad_burst_action_to_string(m->cad_burst_action));

-        }

+        else

+                emergency_action(m, m->cad_burst_action, NULL,

+                                "Ctrl-Alt-Del was pressed more than 7 times within 2s");

 }

 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {

@@ -3336,11 +3319,3 @@ static const char *const manager_state_table[_MANAGER_STATE_MAX] = {

 };

 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);

-

-static const char *const cad_burst_action_table[_CAD_BURST_ACTION_MAX] = {

-        [CAD_BURST_ACTION_IGNORE] = "ignore",

-        [CAD_BURST_ACTION_REBOOT] = "reboot-force",

-        [CAD_BURST_ACTION_POWEROFF] = "poweroff-force",

-};

-

-DEFINE_STRING_TABLE_LOOKUP(cad_burst_action, CADBurstAction);

diff --git a/src/core/manager.h b/src/core/manager.h

index 59913f489..231c076b1 100644

--- a/src/core/manager.h

+++ b/src/core/manager.h

@@ -64,14 +64,6 @@ typedef enum ManagerExitCode {

         _MANAGER_EXIT_CODE_INVALID = -1

 } ManagerExitCode;

-typedef enum CADBurstAction {

-        CAD_BURST_ACTION_IGNORE,

-        CAD_BURST_ACTION_REBOOT,

-        CAD_BURST_ACTION_POWEROFF,

-        _CAD_BURST_ACTION_MAX,

-        _CAD_BURST_ACTION_INVALID = -1

-} CADBurstAction;

-

 typedef enum StatusType {

         STATUS_TYPE_EPHEMERAL,

         STATUS_TYPE_NORMAL,

@@ -310,7 +302,7 @@ struct Manager {

         /* When the user hits C-A-D more than 7 times per 2s, do something immediately... */

         RateLimit ctrl_alt_del_ratelimit;

-        CADBurstAction cad_burst_action;

+        EmergencyAction cad_burst_action;

 };

 int manager_new(SystemdRunningAs running_as, bool test_run, Manager **m);

@@ -381,6 +373,3 @@ ManagerState manager_state(Manager *m);

 const char *manager_state_to_string(ManagerState m) _const_;

 ManagerState manager_state_from_string(const char *s) _pure_;

-

-const char *cad_burst_action_to_string(CADBurstAction a) _const_;

-CADBurstAction cad_burst_action_from_string(const char *s) _pure_;