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-rw-r--r--src/core/manager.h92
1 files changed, 64 insertions, 28 deletions
diff --git a/src/core/manager.h b/src/core/manager.h
index ea5d425030..bce8020cfd 100644
--- a/src/core/manager.h
+++ b/src/core/manager.h
@@ -5,6 +5,7 @@
#include <stdio.h>
#include "sd-bus.h"
+#include "sd-device.h"
#include "sd-event.h"
#include "cgroup-util.h"
@@ -22,6 +23,8 @@ typedef struct Unit Unit;
typedef struct Manager Manager;
+/* An externally visible state. We don't actually maintain this as state variable, but derive it from various fields
+ * when requested */
typedef enum ManagerState {
MANAGER_INITIALIZING,
MANAGER_STARTING,
@@ -33,7 +36,7 @@ typedef enum ManagerState {
_MANAGER_STATE_INVALID = -1
} ManagerState;
-typedef enum ManagerExitCode {
+typedef enum ManagerObjective {
MANAGER_OK,
MANAGER_EXIT,
MANAGER_RELOAD,
@@ -43,9 +46,9 @@ typedef enum ManagerExitCode {
MANAGER_HALT,
MANAGER_KEXEC,
MANAGER_SWITCH_ROOT,
- _MANAGER_EXIT_CODE_MAX,
- _MANAGER_EXIT_CODE_INVALID = -1
-} ManagerExitCode;
+ _MANAGER_OBJECTIVE_MAX,
+ _MANAGER_OBJECTIVE_INVALID = -1
+} ManagerObjective;
typedef enum StatusType {
STATUS_TYPE_EPHEMERAL,
@@ -53,6 +56,27 @@ typedef enum StatusType {
STATUS_TYPE_EMERGENCY,
} StatusType;
+/* Notes:
+ * 1. TIMESTAMP_FIRMWARE, TIMESTAMP_LOADER, TIMESTAMP_KERNEL, TIMESTAMP_INITRD,
+ * TIMESTAMP_SECURITY_START, and TIMESTAMP_SECURITY_FINISH are set only when
+ * the manager is system and not running under container environment.
+ *
+ * 2. The monotonic timestamp of TIMESTAMP_KERNEL is always zero.
+ *
+ * 3. The realtime timestamp of TIMESTAMP_KERNEL will be unset if the system does not
+ * have RTC.
+ *
+ * 4. TIMESTAMP_FIRMWARE and TIMESTAMP_LOADER will be unset if the system does not
+ * have RTC, or systemd is built without EFI support.
+ *
+ * 5. The monotonic timestamps of TIMESTAMP_FIRMWARE and TIMESTAMP_LOADER are stored as
+ * negative of the actual value.
+ *
+ * 6. TIMESTAMP_USERSPACE is the timestamp of when the manager was started.
+ *
+ * 7. TIMESTAMP_INITRD_* are set only when the system is booted with an initrd.
+ */
+
typedef enum ManagerTimestamp {
MANAGER_TIMESTAMP_FIRMWARE,
MANAGER_TIMESTAMP_LOADER,
@@ -67,6 +91,13 @@ typedef enum ManagerTimestamp {
MANAGER_TIMESTAMP_GENERATORS_FINISH,
MANAGER_TIMESTAMP_UNITS_LOAD_START,
MANAGER_TIMESTAMP_UNITS_LOAD_FINISH,
+
+ MANAGER_TIMESTAMP_INITRD_SECURITY_START,
+ MANAGER_TIMESTAMP_INITRD_SECURITY_FINISH,
+ MANAGER_TIMESTAMP_INITRD_GENERATORS_START,
+ MANAGER_TIMESTAMP_INITRD_GENERATORS_FINISH,
+ MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_START,
+ MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_FINISH,
_MANAGER_TIMESTAMP_MAX,
_MANAGER_TIMESTAMP_INVALID = -1,
} ManagerTimestamp;
@@ -77,14 +108,15 @@ typedef enum ManagerTimestamp {
#include "show-status.h"
#include "unit-name.h"
-enum {
- /* 0 = run normally */
- MANAGER_TEST_RUN_MINIMAL = 1 << 1, /* create basic data structures */
- MANAGER_TEST_RUN_BASIC = 1 << 2, /* interact with the environment */
- MANAGER_TEST_RUN_ENV_GENERATORS = 1 << 3, /* also run env generators */
- MANAGER_TEST_RUN_GENERATORS = 1 << 4, /* also run unit generators */
+typedef enum ManagerTestRunFlags {
+ MANAGER_TEST_NORMAL = 0, /* run normally */
+ MANAGER_TEST_RUN_MINIMAL = 1 << 0, /* create basic data structures */
+ MANAGER_TEST_RUN_BASIC = 1 << 1, /* interact with the environment */
+ MANAGER_TEST_RUN_ENV_GENERATORS = 1 << 2, /* also run env generators */
+ MANAGER_TEST_RUN_GENERATORS = 1 << 3, /* also run unit generators */
MANAGER_TEST_FULL = MANAGER_TEST_RUN_BASIC | MANAGER_TEST_RUN_ENV_GENERATORS | MANAGER_TEST_RUN_GENERATORS,
-};
+} ManagerTestRunFlags;
+
assert_cc((MANAGER_TEST_FULL & UINT8_MAX) == MANAGER_TEST_FULL);
struct Manager {
@@ -130,6 +162,9 @@ struct Manager {
/* Target units whose default target dependencies haven't been set yet */
LIST_HEAD(Unit, target_deps_queue);
+ /* Units that might be subject to StopWhenUnneeded= clean-up */
+ LIST_HEAD(Unit, stop_when_unneeded_queue);
+
sd_event *event;
/* This maps PIDs we care about to units that are interested in. We allow multiple units to he interested in
@@ -177,18 +212,16 @@ struct Manager {
LookupPaths lookup_paths;
Set *unit_path_cache;
- char **environment;
+ char **transient_environment; /* The environment, as determined from config files, kernel cmdline and environment generators */
+ char **client_environment; /* Environment variables created by clients through the bus API */
usec_t runtime_watchdog;
usec_t shutdown_watchdog;
dual_timestamp timestamps[_MANAGER_TIMESTAMP_MAX];
- struct udev* udev;
-
/* Data specific to the device subsystem */
- struct udev_monitor* udev_monitor;
- sd_event_source *udev_event_source;
+ sd_device_monitor *device_monitor;
Hashmap *devices_by_sysfs;
/* Data specific to the mount subsystem */
@@ -215,7 +248,7 @@ struct Manager {
/* This is used during reloading: before the reload we queue
* the reply message here, and afterwards we send it */
- sd_bus_message *queued_message;
+ sd_bus_message *pending_reload_message;
Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */
@@ -250,11 +283,10 @@ struct Manager {
usec_t etc_localtime_mtime;
bool etc_localtime_accessible:1;
- /* Flags */
- ManagerExitCode exit_code:5;
+ ManagerObjective objective:5;
+ /* Flags */
bool dispatching_load_queue:1;
- bool dispatching_dbus_queue:1;
bool taint_usr:1;
@@ -267,7 +299,7 @@ struct Manager {
/* Have we ever changed the "kernel.pid_max" sysctl? */
bool sysctl_pid_max_changed:1;
- unsigned test_run_flags:8;
+ ManagerTestRunFlags test_run_flags:8;
/* If non-zero, exit with the following value when the systemd
* process terminate. Useful for containers: systemd-nspawn could get
@@ -305,9 +337,6 @@ struct Manager {
/* non-zero if we are reloading or reexecuting, */
int n_reloading;
- /* A set which contains all jobs that started before reload and finished
- * during it */
- Set *pending_finished_jobs;
unsigned n_installed_jobs;
unsigned n_failed_jobs;
@@ -375,10 +404,12 @@ struct Manager {
#define MANAGER_IS_FINISHED(m) (dual_timestamp_is_set((m)->timestamps + MANAGER_TIMESTAMP_FINISH))
-/* The exit code is set to OK as soon as we enter the main loop, and set otherwise as soon as we are done with it */
-#define MANAGER_IS_RUNNING(m) ((m)->exit_code == MANAGER_OK)
+/* The objective is set to OK as soon as we enter the main loop, and set otherwise as soon as we are done with it */
+#define MANAGER_IS_RUNNING(m) ((m)->objective == MANAGER_OK)
-int manager_new(UnitFileScope scope, unsigned test_run_flags, Manager **m);
+#define MANAGER_IS_TEST_RUN(m) ((m)->test_run_flags != 0)
+
+int manager_new(UnitFileScope scope, ManagerTestRunFlags test_run_flags, Manager **m);
Manager* manager_free(Manager *m);
DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
@@ -408,7 +439,11 @@ void manager_clear_jobs(Manager *m);
unsigned manager_dispatch_load_queue(Manager *m);
-int manager_environment_add(Manager *m, char **minus, char **plus);
+int manager_default_environment(Manager *m);
+int manager_transient_environment_add(Manager *m, char **plus);
+int manager_client_environment_modify(Manager *m, char **minus, char **plus);
+int manager_get_effective_environment(Manager *m, char ***ret);
+
int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit);
int manager_loop(Manager *m);
@@ -479,3 +514,4 @@ void manager_disable_confirm_spawn(void);
const char *manager_timestamp_to_string(ManagerTimestamp m) _const_;
ManagerTimestamp manager_timestamp_from_string(const char *s) _pure_;
+ManagerTimestamp manager_timestamp_initrd_mangle(ManagerTimestamp s);
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