core: add support for a configurable system-wide start-up timeout

When this system-wide start-up timeout is hit we execute one of the
failure actions already implemented for services that fail.

This should not only be useful on embedded devices, but also on laptops
which have the power-button reachable when the lid is closed. This
devices, when in a backpack might get powered on by accident due to the
easily reachable power button. We want to make sure that the system
turns itself off if it starts up due this after a while.

When the system manages to fully start-up logind will suspend the
machine by default if the lid is closed. However, in some cases we don't
even get as far as logind, and the boot hangs much earlier, for example
because we ask for a LUKS password that nobody ever enters.

Yeah, this is a real-life problem on my Yoga 13, which has one of those
easily accessible power buttons, even if the device is closed.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/core/main.c b/src/core/main.c
index 792b316c61..ed690162bf 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -116,6 +116,9 @@ 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 usec_t arg_start_timeout_usec = DEFAULT_MANAGER_START_TIMEOUT_USEC;
+static FailureAction arg_start_timeout_action = FAILURE_ACTION_REBOOT_FORCE;
+static char *arg_start_timeout_reboot_arg = NULL;
 
 static void nop_handler(int sig) {}
 
@@ -669,6 +672,9 @@ 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", "StartTimeoutSec",           config_parse_sec,              0, &arg_start_timeout_usec                },
+                { "Manager", "StartTimeoutAction",        config_parse_failure_action,   0, &arg_start_timeout_action              },
+                { "Manager", "StartTimeoutRebootArgument",config_parse_string,           0, &arg_start_timeout_reboot_arg          },
                 {}
         };
 
@@ -1628,6 +1634,10 @@ int main(int argc, char *argv[]) {
         m->default_memory_accounting = arg_default_memory_accounting;
         m->runtime_watchdog = arg_runtime_watchdog;
         m->shutdown_watchdog = arg_shutdown_watchdog;
+        m->start_timeout_usec = arg_start_timeout_usec;
+        m->start_timeout_action = arg_start_timeout_action;
+        free_and_strdup(&m->start_timeout_reboot_arg, arg_start_timeout_reboot_arg);
+
         m->userspace_timestamp = userspace_timestamp;
         m->kernel_timestamp = kernel_timestamp;
         m->initrd_timestamp = initrd_timestamp;
@@ -1816,6 +1826,9 @@ finish:
         set_free(arg_syscall_archs);
         arg_syscall_archs = NULL;
 
+        free(arg_start_timeout_reboot_arg);
+        arg_start_timeout_reboot_arg = NULL;
+
         label_finish();
 
         if (reexecute) {