along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <sys/reboot.h>
#include <stdio.h>
#include <getopt.h>
#include <stdbool.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <unistd.h>
+#include <fcntl.h>
+#include <sys/socket.h>
#include <dbus/dbus.h>
#include "util.h"
#include "macro.h"
#include "set.h"
+#include "utmp-wtmp.h"
+#include "special.h"
+#include "initreq.h"
+#include "strv.h"
+#include "dbus-common.h"
+#include "cgroup-show.h"
static const char *arg_type = NULL;
+static const char *arg_property = NULL;
static bool arg_all = false;
static bool arg_replace = false;
static bool arg_session = false;
-static bool arg_block = false;
+static bool arg_no_block = false;
+static bool arg_immediate = false;
+static bool arg_no_wtmp = false;
+static bool arg_no_sync = false;
+static bool arg_no_wall = false;
+static bool arg_dry = false;
+static bool arg_quiet = false;
+static char **arg_wall = NULL;
+enum action {
+ ACTION_INVALID,
+ ACTION_SYSTEMCTL,
+ ACTION_HALT,
+ ACTION_POWEROFF,
+ ACTION_REBOOT,
+ ACTION_RUNLEVEL2,
+ ACTION_RUNLEVEL3,
+ ACTION_RUNLEVEL4,
+ ACTION_RUNLEVEL5,
+ ACTION_RESCUE,
+ ACTION_EMERGENCY,
+ ACTION_DEFAULT,
+ ACTION_RELOAD,
+ ACTION_REEXEC,
+ ACTION_RUNLEVEL,
+ _ACTION_MAX
+} arg_action = ACTION_SYSTEMCTL;
+
+static bool private_bus = false;
+
+static bool error_is_no_service(DBusError *error) {
+
+ assert(error);
+
+ if (!dbus_error_is_set(error))
+ return false;
+
+ if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
+ return true;
+
+ if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
+ return true;
+
+ return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
+}
static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
+ assert(iter);
+ assert(data);
+
if (dbus_message_iter_get_arg_type(iter) != type)
return -EIO;
return 0;
}
-static int columns(void) {
- static int parsed_columns = 0;
- const char *e;
+static void warn_wall(enum action action) {
+ static const char *table[_ACTION_MAX] = {
+ [ACTION_HALT] = "The system is going down for system halt NOW!",
+ [ACTION_REBOOT] = "The system is going down for reboot NOW!",
+ [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
+ [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
+ [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
+ };
+
+ if (arg_no_wall)
+ return;
- if (parsed_columns > 0)
- return parsed_columns;
+ if (arg_wall) {
+ char *p;
- if ((e = getenv("COLUMNS")))
- parsed_columns = atoi(e);
+ if (!(p = strv_join(arg_wall, " "))) {
+ log_error("Failed to join strings.");
+ return;
+ }
- if (parsed_columns <= 0) {
- struct winsize ws;
- zero(ws);
+ if (*p) {
+ utmp_wall(p);
+ free(p);
+ return;
+ }
- if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) >= 0)
- parsed_columns = ws.ws_col;
+ free(p);
}
- if (parsed_columns <= 0)
- parsed_columns = 80;
+ if (!table[action])
+ return;
- return parsed_columns;
+ utmp_wall(table[action]);
}
static int list_units(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ assert(bus);
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
int a = 0, b = 0;
+ if (streq(active_state, "maintenance"))
+ fputs(ANSI_HIGHLIGHT_ON, stdout);
+
printf("%-45s %-6s %-12s %-12s%n", id, load_state, active_state, sub_state, &a);
if (job_id != 0)
if (job_id == 0)
printf(" ");
- printf("%.*s", columns() - a - b - 2, description);
+ printf(" %.*s", columns() - a - b - 2, description);
}
+ if (streq(active_state, "maintenance"))
+ fputs(ANSI_HIGHLIGHT_OFF, stdout);
+
fputs("\n", stdout);
k++;
}
dbus_error_init(&error);
+ assert(bus);
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
dbus_error_init(&error);
+ assert(bus);
+ assert(args);
+
for (i = 1; i < n; i++) {
if (!(m = dbus_message_new_method_call(
dbus_error_init(&error);
+ assert(bus);
+ assert(args);
+
for (i = 1; i < n; i++) {
unsigned id;
const char *path;
return r;
}
+typedef struct WaitData {
+ Set *set;
+ bool failed;
+} WaitData;
+
static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
DBusError error;
- Set *s = data;
+ WaitData *d = data;
assert(connection);
assert(message);
- assert(s);
+ assert(d);
dbus_error_init(&error);
- /* log_debug("Got D-Bus request: %s.%s() on %s", */
- /* dbus_message_get_interface(message), */
- /* dbus_message_get_member(message), */
- /* dbus_message_get_path(message)); */
+ log_debug("Got D-Bus request: %s.%s() on %s",
+ dbus_message_get_interface(message),
+ dbus_message_get_member(message),
+ dbus_message_get_path(message));
if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
log_error("Warning! D-Bus connection terminated.");
} else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
uint32_t id;
const char *path;
+ dbus_bool_t success = true;
if (!dbus_message_get_args(message, &error,
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_BOOLEAN, &success,
DBUS_TYPE_INVALID))
log_error("Failed to parse message: %s", error.message);
else {
char *p;
- if ((p = set_remove(s, (char*) path)))
+ if ((p = set_remove(d->set, (char*) path)))
free(p);
+
+ if (!success)
+ d->failed = true;
}
}
static int enable_wait_for_jobs(DBusConnection *bus) {
DBusError error;
- DBusMessage *m = NULL, *reply = NULL;
- int r;
assert(bus);
- dbus_error_init(&error);
+ if (private_bus)
+ return 0;
+ dbus_error_init(&error);
dbus_bus_add_match(bus,
"type='signal',"
"sender='org.freedesktop.systemd1',"
if (dbus_error_is_set(&error)) {
log_error("Failed to add match: %s", error.message);
- r = -EIO;
- goto finish;
- }
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "Subscribe"))) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
- goto finish;
+ dbus_error_free(&error);
+ return -EIO;
}
- r = 0;
-
-finish:
/* This is slightly dirty, since we don't undo the match registrations. */
-
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
+ return 0;
}
static int wait_for_jobs(DBusConnection *bus, Set *s) {
int r;
+ WaitData d;
assert(bus);
assert(s);
- if (!dbus_connection_add_filter(bus, wait_filter, s, NULL)) {
+ zero(d);
+ d.set = s;
+ d.failed = false;
+
+ if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
log_error("Failed to add filter.");
r = -ENOMEM;
goto finish;
dbus_connection_read_write_dispatch(bus, -1))
;
- r = 0;
+ if (!arg_quiet && d.failed)
+ log_error("Job failed, see logs for details.");
+
+ r = d.failed ? -EIO : 0;
finish:
/* This is slightly dirty, since we don't undo the filter registration. */
return r;
}
-static int start_unit(DBusConnection *bus, char **args, unsigned n) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- unsigned i;
- const char *method, *mode;
- char *p = NULL;
- Set *s = NULL;
-
- dbus_error_init(&error);
-
- method =
- streq(args[0], "start") ? "StartUnit" :
- streq(args[0], "stop") ? "StopUnit" :
- streq(args[0], "reload") ? "ReloadUnit" :
- "RestartUnit";
-
- mode = arg_replace ? "replace" : "fail";
-
- if (arg_block) {
- if ((r = enable_wait_for_jobs(bus)) < 0) {
- log_error("Could not watch jobs: %s", strerror(-r));
- goto finish;
- }
- }
-
- for (i = 1; i < n; i++) {
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method))) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &args[i],
- DBUS_TYPE_STRING, &mode,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
- goto finish;
- }
-
- if (arg_block) {
- const char *path;
-
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_OBJECT_PATH, &path,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", error.message);
- r = -EIO;
- goto finish;
- }
-
- if (!s)
- if (!(s = set_new(string_hash_func, string_compare_func))) {
- log_error("Failed to allocate set.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(p = strdup(path))) {
- log_error("Failed to duplicate path.");
- r = -ENOMEM;
- goto finish;
- }
-
- if ((r = set_put(s, p)) < 0) {
- log_error("Failed to add path to set.");
- goto finish;
- }
- p = NULL;
- }
-
- dbus_message_unref(m);
- dbus_message_unref(reply);
-
- m = reply = NULL;
- }
-
- if (arg_block)
- r = wait_for_jobs(bus, s);
- else
- r = 0;
-
-finish:
- free(p);
-
- if (s)
- set_free_free(s);
-
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
+static int start_unit_one(
+ DBusConnection *bus,
+ const char *method,
+ const char *name,
+ const char *mode,
+ Set *s) {
-static int isolate_unit(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
DBusError error;
int r;
- const char *mode = "isolate";
- char *p = NULL;
- Set *s = NULL;
- dbus_error_init(&error);
+ assert(bus);
+ assert(method);
+ assert(name);
+ assert(mode);
+ assert(arg_no_block || s);
- if (arg_block) {
- if ((r = enable_wait_for_jobs(bus)) < 0) {
- log_error("Could not watch jobs: %s", strerror(-r));
- goto finish;
- }
- }
+ dbus_error_init(&error);
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
- "StartUnit"))) {
+ method))) {
log_error("Could not allocate message.");
r = -ENOMEM;
goto finish;
}
if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &args[1],
+ DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &mode,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+
+ if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
+ /* There's always a fallback possible for
+ * legacy actions. */
+ r = 0;
+ goto finish;
+ }
+
log_error("Failed to issue method call: %s", error.message);
r = -EIO;
goto finish;
}
- if (arg_block) {
+ if (!arg_no_block) {
const char *path;
+ char *p;
if (!dbus_message_get_args(reply, &error,
DBUS_TYPE_OBJECT_PATH, &path,
goto finish;
}
- if (!(s = set_new(string_hash_func, string_compare_func))) {
- log_error("Failed to allocate set.");
- r = -ENOMEM;
- goto finish;
- }
-
if (!(p = strdup(path))) {
log_error("Failed to duplicate path.");
r = -ENOMEM;
}
if ((r = set_put(s, p)) < 0) {
+ free(p);
log_error("Failed to add path to set.");
goto finish;
}
- p = NULL;
-
- r = wait_for_jobs(bus, s);
+ }
- } else
- r = 0;
+ r = 1;
finish:
- free(p);
-
- if (s)
- set_free_free(s);
-
if (m)
dbus_message_unref(m);
return r;
}
-static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
- DBusError error;
- DBusMessage *m = NULL, *reply = NULL;
-
- assert(connection);
- assert(message);
-
- dbus_error_init(&error);
+static enum action verb_to_action(const char *verb) {
+ if (streq(verb, "halt"))
+ return ACTION_HALT;
+ else if (streq(verb, "poweroff"))
+ return ACTION_POWEROFF;
+ else if (streq(verb, "reboot"))
+ return ACTION_REBOOT;
+ else if (streq(verb, "rescue"))
+ return ACTION_RESCUE;
+ else if (streq(verb, "emergency"))
+ return ACTION_EMERGENCY;
+ else if (streq(verb, "default"))
+ return ACTION_DEFAULT;
+ else
+ return ACTION_INVALID;
+}
- /* log_debug("Got D-Bus request: %s.%s() on %s", */
- /* dbus_message_get_interface(message), */
- /* dbus_message_get_member(message), */
- /* dbus_message_get_path(message)); */
+static int start_unit(DBusConnection *bus, char **args, unsigned n) {
- if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
- log_error("Warning! D-Bus connection terminated.");
- dbus_connection_close(connection);
+ static const char * const table[_ACTION_MAX] = {
+ [ACTION_HALT] = SPECIAL_HALT_TARGET,
+ [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
+ [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
+ [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
+ [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
+ [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
+ [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
+ [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
+ [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_SERVICE,
+ [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
+ };
- } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
- dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
- const char *id, *path;
+ int r;
+ unsigned i;
+ const char *method, *mode, *one_name;
+ Set *s = NULL;
- if (!dbus_message_get_args(message, &error,
- DBUS_TYPE_STRING, &id,
- DBUS_TYPE_OBJECT_PATH, &path,
- DBUS_TYPE_INVALID))
- log_error("Failed to parse message: %s", error.message);
- else if (streq(dbus_message_get_member(message), "UnitNew"))
- printf("Unit %s added.\n", id);
- else
- printf("Unit %s removed.\n", id);
+ assert(bus);
- } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
- dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
- uint32_t id;
- const char *path;
+ if (arg_action == ACTION_SYSTEMCTL) {
+ method =
+ streq(args[0], "stop") ? "StopUnit" :
+ streq(args[0], "reload") ? "ReloadUnit" :
+ streq(args[0], "restart") ? "RestartUnit" :
+ "StartUnit";
- if (!dbus_message_get_args(message, &error,
- DBUS_TYPE_UINT32, &id,
- DBUS_TYPE_OBJECT_PATH, &path,
- DBUS_TYPE_INVALID))
- log_error("Failed to parse message: %s", error.message);
- else if (streq(dbus_message_get_member(message), "JobNew"))
- printf("Job %u added.\n", id);
- else
- printf("Job %u removed.\n", id);
+ mode =
+ (streq(args[0], "isolate") ||
+ streq(args[0], "rescue") ||
+ streq(args[0], "emergency")) ? "isolate" :
+ arg_replace ? "replace" :
+ "fail";
+ one_name = table[verb_to_action(args[0])];
- } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
- dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
+ } else {
+ assert(arg_action < ELEMENTSOF(table));
+ assert(table[arg_action]);
- const char *path, *interface, *property = "Id";
- DBusMessageIter iter, sub;
+ method = "StartUnit";
- path = dbus_message_get_path(message);
- interface = dbus_message_get_interface(message);
+ mode = (arg_action == ACTION_EMERGENCY ||
+ arg_action == ACTION_RESCUE) ? "isolate" : "replace";
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- path,
- "org.freedesktop.DBus.Properties",
- "Get"))) {
- log_error("Could not allocate message.");
- goto oom;
- }
+ one_name = table[arg_action];
+ }
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &interface,
- DBUS_TYPE_STRING, &property,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
+ if (!arg_no_block) {
+ if ((r = enable_wait_for_jobs(bus)) < 0) {
+ log_error("Could not watch jobs: %s", strerror(-r));
goto finish;
}
- if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
+ if (!(s = set_new(string_hash_func, string_compare_func))) {
+ log_error("Failed to allocate set.");
+ r = -ENOMEM;
goto finish;
}
+ }
- if (!dbus_message_iter_init(reply, &iter) ||
- dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
- log_error("Failed to parse reply.");
- goto finish;
- }
+ r = 0;
- dbus_message_iter_recurse(&iter, &sub);
+ if (one_name) {
+ if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
+ goto finish;
+ } else {
+ for (i = 1; i < n; i++)
+ if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
+ goto finish;
+ }
- if (streq(interface, "org.freedesktop.systemd1.Unit")) {
- const char *id;
-
- if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
- log_error("Failed to parse reply.");
- goto finish;
- }
-
- dbus_message_iter_get_basic(&sub, &id);
- printf("Unit %s changed.\n", id);
- } else {
- uint32_t id;
-
- if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
- log_error("Failed to parse reply.");
- goto finish;
- }
-
- dbus_message_iter_get_basic(&sub, &id);
- printf("Job %u changed.\n", id);
- }
- }
+ if (!arg_no_block)
+ r = wait_for_jobs(bus, s);
finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
+ if (s)
+ set_free_free(s);
- dbus_error_free(&error);
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ return r;
+}
-oom:
- if (m)
- dbus_message_unref(m);
+static int start_special(DBusConnection *bus, char **args, unsigned n) {
+ assert(bus);
+ assert(args);
- if (reply)
- dbus_message_unref(reply);
+ warn_wall(verb_to_action(args[0]));
- dbus_error_free(&error);
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
+ return start_unit(bus, args, n);
}
-static int monitor(DBusConnection *bus, char **args, unsigned n) {
+static int check_unit(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
+ const char
+ *interface = "org.freedesktop.systemd1.Unit",
+ *property = "ActiveState";
+ int r = -EADDRNOTAVAIL;
DBusError error;
- int r;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
dbus_error_init(&error);
- dbus_bus_add_match(bus,
- "type='signal',"
- "sender='org.freedesktop.systemd1',"
- "interface='org.freedesktop.systemd1.Manager',"
- "path='/org/freedesktop/systemd1'",
- &error);
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+ const char *state;
+ DBusMessageIter iter, sub;
- if (dbus_error_is_set(&error)) {
- log_error("Failed to add match: %s", error.message);
- r = -EIO;
- goto finish;
- }
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnit"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
- dbus_bus_add_match(bus,
- "type='signal',"
- "sender='org.freedesktop.systemd1',"
- "interface='org.freedesktop.systemd1.Unit',"
- "member='Changed'",
- &error);
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
- if (dbus_error_is_set(&error)) {
- log_error("Failed to add match: %s", error.message);
- r = -EIO;
- goto finish;
- }
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- dbus_bus_add_match(bus,
- "type='signal',"
- "sender='org.freedesktop.systemd1',"
- "interface='org.freedesktop.systemd1.Job',"
- "member='Changed'",
- &error);
+ /* Hmm, cannot figure out anything about this unit... */
+ if (!arg_quiet)
+ puts("unknown");
- if (dbus_error_is_set(&error)) {
- log_error("Failed to add match: %s", error.message);
- r = -EIO;
- goto finish;
- }
+ dbus_error_free(&error);
+ continue;
+ }
- if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
- log_error("Failed to add filter.");
- r = -ENOMEM;
- goto finish;
- }
+ if (!dbus_message_get_args(reply, &error,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "Subscribe"))) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
+ dbus_message_unref(m);
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "Get"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
- goto finish;
- }
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
- while (dbus_connection_read_write_dispatch(bus, -1))
- ;
+ dbus_message_unref(reply);
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
- r = 0;
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
-finish:
+ dbus_message_iter_recurse(&iter, &sub);
- /* This is slightly dirty, since we don't undo the filter or the matches. */
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub, &state);
+
+ if (!arg_quiet)
+ puts(state);
+
+ if (streq(state, "active") || startswith(state, "reloading"))
+ r = 0;
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+finish:
if (m)
dbus_message_unref(m);
return r;
}
-static int dump(DBusConnection *bus, char **args, unsigned n) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *text;
+typedef struct UnitStatusInfo {
+ const char *id;
+ const char *load_state;
+ const char *active_state;
+ const char *sub_state;
- dbus_error_init(&error);
+ const char *description;
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "Dump"))) {
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
+ const char *fragment_path;
+ const char *default_control_group;
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
- goto finish;
- }
+ /* Service */
+ pid_t main_pid;
+ pid_t control_pid;
+ const char *status_text;
+ bool running;
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_STRING, &text,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", error.message);
- r = -EIO;
- goto finish;
- }
+ usec_t start_timestamp;
+ usec_t exit_timestamp;
- fputs(text, stdout);
+ int exit_code, exit_status;
- r = 0;
+ /* Socket */
+ unsigned n_accepted;
+ unsigned n_connections;
-finish:
- if (m)
- dbus_message_unref(m);
+ /* Device */
+ const char *sysfs_path;
- if (reply)
- dbus_message_unref(reply);
+ /* Mount, Automount */
+ const char *where;
- dbus_error_free(&error);
+ /* Swap */
+ const char *what;
+} UnitStatusInfo;
- return r;
-}
+static void print_status_info(UnitStatusInfo *i) {
+ assert(i);
-static int snapshot(DBusConnection *bus, char **args, unsigned n) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *name = "", *path, *id;
- dbus_bool_t cleanup = FALSE;
- DBusMessageIter iter, sub;
- const char
- *interface = "org.freedesktop.systemd1.Unit",
- *property = "Id";
+ /* This shows pretty information about a unit. See
+ * print_property() for a low-level property printer */
- dbus_error_init(&error);
+ printf("%s", strna(i->id));
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "CreateSnapshot"))) {
- log_error("Could not allocate message.");
- return -ENOMEM;
+ if (i->description && !streq_ptr(i->id, i->description))
+ printf(" - %s", i->description);
+
+ printf("\n");
+
+ if (i->fragment_path)
+ printf("\t Loaded: %s (%s)\n", strna(i->load_state), i->fragment_path);
+ else if (streq_ptr(i->load_state, "failed"))
+ printf("\t Loaded: " ANSI_HIGHLIGHT_ON "%s" ANSI_HIGHLIGHT_OFF "\n", strna(i->load_state));
+ else
+ printf("\t Loaded: %s\n", strna(i->load_state));
+
+ if (streq_ptr(i->active_state, "maintenance"))
+ printf("\t Active: " ANSI_HIGHLIGHT_ON "%s (%s)" ANSI_HIGHLIGHT_OFF "\n",
+ strna(i->active_state),
+ strna(i->sub_state));
+ else
+ printf("\t Active: %s (%s)\n",
+ strna(i->active_state),
+ strna(i->sub_state));
+
+ if (i->sysfs_path)
+ printf("\t Device: %s\n", i->sysfs_path);
+ else if (i->where)
+ printf("\t Where: %s\n", i->where);
+ else if (i->what)
+ printf("\t What: %s\n", i->what);
+
+ if (i->status_text)
+ printf("\t Status: \"%s\"\n", i->status_text);
+
+ if (i->id && endswith(i->id, ".socket"))
+ printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
+
+ if (i->main_pid > 0 || i->control_pid > 0) {
+ printf("\t");
+
+ if (i->main_pid > 0) {
+ printf(" Process: %u", (unsigned) i->main_pid);
+
+ if (i->running) {
+ char *t = NULL;
+ get_process_name(i->main_pid, &t);
+ if (t) {
+ printf(" (%s)", t);
+ free(t);
+ }
+ } else {
+ printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
+
+ if (i->exit_code == CLD_EXITED)
+ printf("status=%i", i->exit_status);
+ else
+ printf("signal=%s", strsignal(i->exit_status));
+ printf(")");
+ }
+ }
+
+ if (i->main_pid > 0 && i->control_pid > 0)
+ printf(";");
+
+ if (i->control_pid > 0) {
+ char *t = NULL;
+
+ printf(" Control: %u", (unsigned) i->control_pid);
+
+ get_process_name(i->control_pid, &t);
+ if (t) {
+ printf(" (%s)", t);
+ free(t);
+ }
+ }
+
+ printf("\n");
}
- if (n > 1)
- name = args[1];
+ if (i->default_control_group) {
+ unsigned c;
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_BOOLEAN, &cleanup,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
+ printf("\t CGroup: %s\n", i->default_control_group);
+
+ if ((c = columns()) > 18)
+ c -= 18;
+ else
+ c = 0;
+
+ show_cgroup_recursive(i->default_control_group, "\t\t ", c);
}
+}
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
- goto finish;
+static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (s[0]) {
+ if (streq(name, "Id"))
+ i->id = s;
+ else if (streq(name, "LoadState"))
+ i->load_state = s;
+ else if (streq(name, "ActiveState"))
+ i->active_state = s;
+ else if (streq(name, "SubState"))
+ i->sub_state = s;
+ else if (streq(name, "Description"))
+ i->description = s;
+ else if (streq(name, "FragmentPath"))
+ i->fragment_path = s;
+ else if (streq(name, "DefaultControlGroup"))
+ i->default_control_group = s;
+ else if (streq(name, "StatusText"))
+ i->status_text = s;
+ else if (streq(name, "SysFSPath"))
+ i->sysfs_path = s;
+ else if (streq(name, "Where"))
+ i->where = s;
+ else if (streq(name, "What"))
+ i->what = s;
+ }
+
+ break;
}
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_OBJECT_PATH, &path,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", error.message);
- r = -EIO;
- goto finish;
+ case DBUS_TYPE_UINT32: {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "MainPID")) {
+ if (u > 0) {
+ i->main_pid = (pid_t) u;
+ i->running = true;
+ }
+ } else if (streq(name, "ControlPID"))
+ i->control_pid = (pid_t) u;
+ else if (streq(name, "ExecMainPID")) {
+ if (u > 0)
+ i->main_pid = (pid_t) u;
+ } else if (streq(name, "NAccepted"))
+ i->n_accepted = u;
+ else if (streq(name, "NConnections"))
+ i->n_connections = u;
+
+ break;
}
- dbus_message_unref(m);
+ case DBUS_TYPE_INT32: {
+ int32_t j;
+
+ dbus_message_iter_get_basic(iter, &j);
+
+ if (streq(name, "ExecMainCode"))
+ i->exit_code = (int) j;
+ else if (streq(name, "ExecMainStatus"))
+ i->exit_status = (int) j;
+
+ break;
+ }
+
+ case DBUS_TYPE_UINT64: {
+ uint64_t u;
+
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (streq(name, "ExecMainStartTimestamp"))
+ i->start_timestamp = (usec_t) u;
+ else if (streq(name, "ExecMainExitTimestamp"))
+ i->exit_timestamp = (usec_t) u;
+
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int print_property(const char *name, DBusMessageIter *iter) {
+ assert(name);
+ assert(iter);
+
+ /* This is a low-level property printer, see
+ * print_status_info() for the nicer output */
+
+ if (arg_property && !streq(name, arg_property))
+ return 0;
+
+ switch (dbus_message_iter_get_arg_type(iter)) {
+
+ case DBUS_TYPE_STRING: {
+ const char *s;
+ dbus_message_iter_get_basic(iter, &s);
+
+ if (arg_all || s[0])
+ printf("%s=%s\n", name, s);
+
+ return 0;
+ }
+
+ case DBUS_TYPE_BOOLEAN: {
+ dbus_bool_t b;
+ dbus_message_iter_get_basic(iter, &b);
+ printf("%s=%s\n", name, yes_no(b));
+
+ return 0;
+ }
+
+ case DBUS_TYPE_UINT64: {
+ uint64_t u;
+ dbus_message_iter_get_basic(iter, &u);
+
+ /* Yes, heuristics! But we can change this check
+ * should it turn out to not be sufficient */
+
+ if (strstr(name, "Timestamp")) {
+ char timestamp[FORMAT_TIMESTAMP_MAX], *t;
+
+ if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
+ printf("%s=%s\n", name, strempty(t));
+ } else if (strstr(name, "USec")) {
+ char timespan[FORMAT_TIMESPAN_MAX];
+
+ printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
+ } else
+ printf("%s=%llu\n", name, (unsigned long long) u);
+
+ return 0;
+ }
+
+ case DBUS_TYPE_UINT32: {
+ uint32_t u;
+ dbus_message_iter_get_basic(iter, &u);
+
+ if (strstr(name, "UMask") || strstr(name, "Mode"))
+ printf("%s=%04o\n", name, u);
+ else
+ printf("%s=%u\n", name, (unsigned) u);
+
+ return 0;
+ }
+
+ case DBUS_TYPE_INT32: {
+ int32_t i;
+ dbus_message_iter_get_basic(iter, &i);
+
+ printf("%s=%i\n", name, (int) i);
+ return 0;
+ }
+
+ case DBUS_TYPE_STRUCT: {
+ DBusMessageIter sub;
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
+ uint32_t u;
+
+ dbus_message_iter_get_basic(&sub, &u);
+
+ if (u)
+ printf("%s=%u\n", name, (unsigned) u);
+ else if (arg_all)
+ printf("%s=\n", name);
+
+ return 0;
+ } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
+ const char *s;
+
+ dbus_message_iter_get_basic(&sub, &s);
+
+ if (arg_all || s[0])
+ printf("%s=%s\n", name, s);
+
+ return 0;
+ }
+
+ break;
+ }
+
+ case DBUS_TYPE_ARRAY:
+
+ if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
+ DBusMessageIter sub;
+ bool space = false;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (arg_all ||
+ dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ printf("%s=", name);
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *s;
+
+ assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
+ dbus_message_iter_get_basic(&sub, &s);
+ printf("%s%s", space ? " " : "", s);
+
+ space = true;
+ dbus_message_iter_next(&sub);
+ }
+
+ puts("");
+ }
+
+ return 0;
+ } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
+ DBusMessageIter sub;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ if (arg_all ||
+ dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ printf("%s=", name);
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ uint8_t u;
+
+ assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
+ dbus_message_iter_get_basic(&sub, &u);
+ printf("%02x", u);
+
+ dbus_message_iter_next(&sub);
+ }
+
+ puts("");
+ }
+
+ return 0;
+ } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
+ DBusMessageIter sub, sub2;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ const char *type, *path;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
+ printf("%s=%s\n", type, path);
+
+ dbus_message_iter_next(&sub);
+ }
+
+ return 0;
+ } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
+ DBusMessageIter sub, sub2;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ const char *base;
+ uint64_t value, next_elapse;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
+ char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
+
+ printf("%s={ value=%s ; next_elapse=%s }\n",
+ base,
+ format_timespan(timespan1, sizeof(timespan1), value),
+ format_timespan(timespan2, sizeof(timespan2), next_elapse));
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ return 0;
+ } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
+
+ DBusMessageIter sub, sub2, sub3;
+
+ dbus_message_iter_recurse(iter, &sub);
+
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
+ const char *path;
+ uint64_t start_time, exit_time;
+ uint32_t pid;
+ int32_t code, status;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
+ continue;
+
+ if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
+ continue;
+
+ printf("%s={ path=%s ; argv[]=", name, path);
+
+ dbus_message_iter_recurse(&sub2, &sub3);
+
+ while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
+ const char *s;
+
+ assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
+ dbus_message_iter_get_basic(&sub3, &s);
+ printf("%s ", s);
+ dbus_message_iter_next(&sub3);
+ }
+
+ if (dbus_message_iter_next(&sub2) &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_time, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_time, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) >= 0 &&
+ bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) >= 0) {
+
+ char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
+
+ printf("; start=%s ; stop=%s ; pid=%u ; code=%s ; status=%i/%s",
+ strna(format_timestamp(timestamp1, sizeof(timestamp1), start_time)),
+ strna(format_timestamp(timestamp2, sizeof(timestamp2), exit_time)),
+ (unsigned) pid,
+ sigchld_code_to_string(code),
+ status,
+ strempty(code == CLD_EXITED ? NULL : strsignal(status)));
+ }
+
+ printf(" }\n");
+
+ dbus_message_iter_next(&sub);
+ }
+
+ return 0;
+ }
+
+ break;
+ }
+
+ if (arg_all)
+ printf("%s=[unprintable]\n", name);
+
+ return 0;
+}
+
+static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
+ DBusMessage *m = NULL, *reply = NULL;
+ const char *interface = "";
+ int r;
+ DBusError error;
+ DBusMessageIter iter, sub, sub2, sub3;
+ UnitStatusInfo info;
+
+ assert(bus);
+ assert(path);
+ assert(new_line);
+
+ zero(info);
+ dbus_error_init(&error);
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
- "Get"))) {
+ "GetAll"))) {
log_error("Could not allocate message.");
- return -ENOMEM;
+ r = -ENOMEM;
+ goto finish;
}
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &interface,
- DBUS_TYPE_STRING, &property,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
goto finish;
}
- dbus_message_unref(reply);
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", error.message);
r = -EIO;
}
if (!dbus_message_iter_init(reply, &iter) ||
- dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
log_error("Failed to parse reply.");
r = -EIO;
goto finish;
dbus_message_iter_recurse(&iter, &sub);
- if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
+ if (*new_line)
+ printf("\n");
- dbus_message_iter_get_basic(&sub, &id);
- puts(id);
- r = 0;
+ *new_line = true;
-finish:
- if (m)
- dbus_message_unref(m);
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *name;
- if (reply)
- dbus_message_unref(reply);
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
- dbus_error_free(&error);
+ dbus_message_iter_recurse(&sub, &sub2);
- return r;
-}
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
-static int clear_jobs(DBusConnection *bus, char **args, unsigned n) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *method;
+ if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
- dbus_error_init(&error);
+ dbus_message_iter_recurse(&sub2, &sub3);
- method =
- streq(args[0], "clear-jobs") ? "ClearJobs" :
- streq(args[0], "daemon-reload") ? "Reload" :
- streq(args[0], "daemon-reexec") ? "Reexecute" :
- "Exit";
+ if (show_properties)
+ r = print_property(name, &sub3);
+ else
+ r = status_property(name, &sub3, &info);
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method))) {
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
+ if (r < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
- goto finish;
+ dbus_message_iter_next(&sub);
}
+ if (!show_properties)
+ print_status_info(&info);
+
r = 0;
finish:
return r;
}
-static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
+static int show(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- DBusMessageIter iter, sub, sub2;
int r;
- const char
- *interface = "org.freedesktop.systemd1.Manager",
- *property = "Environment";
+ DBusError error;
+ unsigned i;
+ bool show_properties, new_line = false;
+
+ assert(bus);
+ assert(args);
dbus_error_init(&error);
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.DBus.Properties",
- "Get"))) {
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
+ show_properties = !streq(args[0], "status");
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &interface,
- DBUS_TYPE_STRING, &property,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
+ if (show_properties && n <= 1) {
+ /* If not argument is specified inspect the manager
+ * itself */
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", error.message);
- r = -EIO;
+ r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
goto finish;
}
- if (!dbus_message_iter_init(reply, &iter) ||
- dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+ uint32_t id;
+
+ if (!show_properties || safe_atou32(args[i], &id) < 0) {
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "LoadUnit"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+
+ if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_error_free(&error);
+
+ dbus_message_unref(m);
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnit"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+ }
+
+ } else {
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetJob"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_UINT32, &id,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+ }
+
+ if (!dbus_message_get_args(reply, &error,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
+ goto finish;
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
+ DBusError error;
+ DBusMessage *m = NULL, *reply = NULL;
+
+ assert(connection);
+ assert(message);
+
+ dbus_error_init(&error);
+
+ log_debug("Got D-Bus request: %s.%s() on %s",
+ dbus_message_get_interface(message),
+ dbus_message_get_member(message),
+ dbus_message_get_path(message));
+
+ if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
+ log_error("Warning! D-Bus connection terminated.");
+ dbus_connection_close(connection);
+
+ } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
+ dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
+ const char *id, *path;
+
+ if (!dbus_message_get_args(message, &error,
+ DBUS_TYPE_STRING, &id,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID))
+ log_error("Failed to parse message: %s", error.message);
+ else if (streq(dbus_message_get_member(message), "UnitNew"))
+ printf("Unit %s added.\n", id);
+ else
+ printf("Unit %s removed.\n", id);
+
+ } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
+ dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
+ uint32_t id;
+ const char *path;
+
+ if (!dbus_message_get_args(message, &error,
+ DBUS_TYPE_UINT32, &id,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID))
+ log_error("Failed to parse message: %s", error.message);
+ else if (streq(dbus_message_get_member(message), "JobNew"))
+ printf("Job %u added.\n", id);
+ else
+ printf("Job %u removed.\n", id);
+
+
+ } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
+ dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
+
+ const char *path, *interface, *property = "Id";
+ DBusMessageIter iter, sub;
+
+ path = dbus_message_get_path(message);
+ interface = dbus_message_get_interface(message);
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "Get"))) {
+ log_error("Could not allocate message.");
+ goto oom;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ goto finish;
+ }
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (streq(interface, "org.freedesktop.systemd1.Unit")) {
+ const char *id;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub, &id);
+ printf("Unit %s changed.\n", id);
+ } else {
+ uint32_t id;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
+ log_error("Failed to parse reply.");
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub, &id);
+ printf("Job %u changed.\n", id);
+ }
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+oom:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+}
+
+static int monitor(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+
+ dbus_error_init(&error);
+
+ if (!private_bus) {
+ dbus_bus_add_match(bus,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "path='/org/freedesktop/systemd1'",
+ &error);
+
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to add match: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_bus_add_match(bus,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Unit',"
+ "member='Changed'",
+ &error);
+
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to add match: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_bus_add_match(bus,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Job',"
+ "member='Changed'",
+ &error);
+
+ if (dbus_error_is_set(&error)) {
+ log_error("Failed to add match: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+ }
+
+ if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
+ log_error("Failed to add filter.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "Subscribe"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ while (dbus_connection_read_write_dispatch(bus, -1))
+ ;
+
+ r = 0;
+
+finish:
+
+ /* This is slightly dirty, since we don't undo the filter or the matches. */
+
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int dump(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ const char *text;
+
+ dbus_error_init(&error);
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "Dump"))) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ if (!dbus_message_get_args(reply, &error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ fputs(text, stdout);
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int snapshot(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ const char *name = "", *path, *id;
+ dbus_bool_t cleanup = FALSE;
+ DBusMessageIter iter, sub;
+ const char
+ *interface = "org.freedesktop.systemd1.Unit",
+ *property = "Id";
+
+ dbus_error_init(&error);
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "CreateSnapshot"))) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ if (n > 1)
+ name = args[1];
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_BOOLEAN, &cleanup,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ if (!dbus_message_get_args(reply, &error,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "Get"))) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ dbus_message_unref(reply);
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub, &id);
+
+ if (!arg_quiet)
+ puts(id);
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ int r;
+ DBusError error;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnit"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &args[i],
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ if (!dbus_message_get_args(reply, &error,
+ DBUS_TYPE_OBJECT_PATH, &path,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.systemd1.Snapshot",
+ "Remove"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ dbus_message_unref(reply);
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+ }
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int clear_jobs(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ const char *method;
+
+ dbus_error_init(&error);
+
+ if (arg_action == ACTION_RELOAD)
+ method = "Reload";
+ else if (arg_action == ACTION_REEXEC)
+ method = "Reexecute";
+ else {
+ assert(arg_action == ACTION_SYSTEMCTL);
+
+ method =
+ streq(args[0], "clear-jobs") ? "ClearJobs" :
+ streq(args[0], "daemon-reload") ? "Reload" :
+ streq(args[0], "daemon-reexec") ? "Reexecute" :
+ "Exit";
+ }
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ method))) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+
+ if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
+ /* There's always a fallback possible for
+ * legacy actions. */
+ r = 0;
+ goto finish;
+ }
+
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ r = 1;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ DBusMessageIter iter, sub, sub2;
+ int r;
+ const char
+ *interface = "org.freedesktop.systemd1.Manager",
+ *property = "Environment";
+
+ dbus_error_init(&error);
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.DBus.Properties",
+ "Get"))) {
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
+ const char *text;
+
+ if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub2, &text);
+ printf("%s\n", text);
+
+ dbus_message_iter_next(&sub2);
+ }
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int set_environment(DBusConnection *bus, char **args, unsigned n) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ int r;
+ const char *method;
+ DBusMessageIter iter, sub;
+ unsigned i;
+
+ dbus_error_init(&error);
+
+ method = streq(args[0], "set-environment")
+ ? "SetEnvironment"
+ : "UnsetEnvironment";
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ method))) {
+
+ log_error("Could not allocate message.");
+ return -ENOMEM;
+ }
+
+ dbus_message_iter_init_append(m, &iter);
+
+ if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ for (i = 1; i < n; i++)
+ if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_iter_close_container(&iter, &sub)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ log_error("Failed to issue method call: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int systemctl_help(void) {
+
+ printf("%s [OPTIONS...] {COMMAND} ...\n\n"
+ "Send control commands to the systemd manager.\n\n"
+ " -h --help Show this help\n"
+ " -t --type=TYPE List only units of a particular type\n"
+ " -p --property=NAME Show only properties by this name\n"
+ " -a --all Show all units/properties, including dead/empty ones\n"
+ " --replace When installing a new job, replace existing conflicting ones\n"
+ " --system Connect to system bus\n"
+ " --session Connect to session bus\n"
+ " -q --quiet Suppress output\n"
+ " --no-block Do not wait until operation finished\n"
+ " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
+ "Commands:\n"
+ " list-units List units\n"
+ " start [NAME...] Start one or more units\n"
+ " stop [NAME...] Stop one or more units\n"
+ " restart [NAME...] Restart one or more units\n"
+ " reload [NAME...] Reload one or more units\n"
+ " isolate [NAME] Start one unit and stop all others\n"
+ " check [NAME...] Check whether any of the passed units are active\n"
+ " status [NAME...] Show status of one or more units\n"
+ " show [NAME...|JOB...] Show properties of one or more units/jobs/manager\n"
+ " load [NAME...] Load one or more units\n"
+ " list-jobs List jobs\n"
+ " cancel [JOB...] Cancel one or more jobs\n"
+ " clear-jobs Cancel all jobs\n"
+ " monitor Monitor unit/job changes\n"
+ " dump Dump server status\n"
+ " snapshot [NAME] Create a snapshot\n"
+ " delete [NAME...] Remove one or more snapshots\n"
+ " daemon-reload Reload systemd manager configuration\n"
+ " daemon-reexec Reexecute systemd manager\n"
+ " daemon-exit Ask the systemd manager to quit\n"
+ " show-environment Dump environment\n"
+ " set-environment [NAME=VALUE...] Set one or more environment variables\n"
+ " unset-environment [NAME...] Unset one or more environment variables\n"
+ " halt Shut down and halt the system\n"
+ " poweroff Shut down and power-off the system\n"
+ " reboot Shut down and reboot the system\n"
+ " default Enter default mode\n"
+ " rescue Enter rescue mode\n"
+ " emergency Enter emergency mode\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int halt_help(void) {
+
+ printf("%s [OPTIONS...]\n\n"
+ "%s the system.\n\n"
+ " --help Show this help\n"
+ " --halt Halt the machine\n"
+ " -p --poweroff Switch off the machine\n"
+ " --reboot Reboot the machine\n"
+ " -f --force Force immediate halt/power-off/reboot\n"
+ " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
+ " -d --no-wtmp Don't write wtmp record\n"
+ " -n --no-sync Don't sync before halt/power-off/reboot\n"
+ " --no-wall Don't send wall message before halt/power-off/reboot\n",
+ program_invocation_short_name,
+ arg_action == ACTION_REBOOT ? "Reboot" :
+ arg_action == ACTION_POWEROFF ? "Power off" :
+ "Halt");
+
+ return 0;
+}
+
+static int shutdown_help(void) {
+
+ printf("%s [OPTIONS...] [now] [WALL...]\n\n"
+ "Shut down the system.\n\n"
+ " --help Show this help\n"
+ " -H --halt Halt the machine\n"
+ " -P --poweroff Power-off the machine\n"
+ " -r --reboot Reboot the machine\n"
+ " -h Equivalent to --poweroff, overriden by --halt\n"
+ " -k Don't halt/power-off/reboot, just send warnings\n"
+ " --no-wall Don't send wall message before halt/power-off/reboot\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int telinit_help(void) {
+
+ printf("%s [OPTIONS...] {COMMAND}\n\n"
+ "Send control commands to the init daemon.\n\n"
+ " --help Show this help\n"
+ " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
+ "Commands:\n"
+ " 0 Power-off the machine\n"
+ " 6 Reboot the machine\n"
+ " 2, 3, 4, 5 Start runlevelX.target unit\n"
+ " 1, s, S Enter rescue mode\n"
+ " q, Q Reload init daemon configuration\n"
+ " u, U Reexecute init daemon\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int runlevel_help(void) {
+
+ printf("%s [OPTIONS...]\n\n"
+ "Prints the previous and current runlevel of the init system.\n\n"
+ " --help Show this help\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int systemctl_parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_REPLACE = 0x100,
+ ARG_SESSION,
+ ARG_SYSTEM,
+ ARG_NO_BLOCK,
+ ARG_NO_WALL
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "type", required_argument, NULL, 't' },
+ { "property", required_argument, NULL, 'p' },
+ { "all", no_argument, NULL, 'a' },
+ { "replace", no_argument, NULL, ARG_REPLACE },
+ { "session", no_argument, NULL, ARG_SESSION },
+ { "system", no_argument, NULL, ARG_SYSTEM },
+ { "no-block", no_argument, NULL, ARG_NO_BLOCK },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
+ { "quiet", no_argument, NULL, 'q' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ systemctl_help();
+ return 0;
+
+ case 't':
+ arg_type = optarg;
+ break;
+
+ case 'p':
+ arg_property = optarg;
+
+ /* If the user asked for a particular
+ * property, show it to him, even if it is
+ * empty. */
+ arg_all = true;
+ break;
+
+ case 'a':
+ arg_all = true;
+ break;
+
+ case ARG_REPLACE:
+ arg_replace = true;
+ break;
+
+ case ARG_SESSION:
+ arg_session = true;
+ break;
+
+ case ARG_SYSTEM:
+ arg_session = false;
+ break;
+
+ case ARG_NO_BLOCK:
+ arg_no_block = true;
+ break;
+
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
+ case 'q':
+ arg_quiet = true;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ return 1;
+}
+
+static int halt_parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_HELP = 0x100,
+ ARG_HALT,
+ ARG_REBOOT,
+ ARG_NO_WALL
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, ARG_HELP },
+ { "halt", no_argument, NULL, ARG_HALT },
+ { "poweroff", no_argument, NULL, 'p' },
+ { "reboot", no_argument, NULL, ARG_REBOOT },
+ { "force", no_argument, NULL, 'f' },
+ { "wtmp-only", no_argument, NULL, 'w' },
+ { "no-wtmp", no_argument, NULL, 'd' },
+ { "no-sync", no_argument, NULL, 'n' },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c, runlevel;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ if (utmp_get_runlevel(&runlevel, NULL) >= 0)
+ if (runlevel == '0' || runlevel == '6')
+ arg_immediate = true;
+
+ while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
+ switch (c) {
+
+ case ARG_HELP:
+ halt_help();
+ return 0;
+
+ case ARG_HALT:
+ arg_action = ACTION_HALT;
+ break;
+
+ case 'p':
+ arg_action = ACTION_POWEROFF;
+ break;
+
+ case ARG_REBOOT:
+ arg_action = ACTION_REBOOT;
+ break;
+
+ case 'f':
+ arg_immediate = true;
+ break;
+
+ case 'w':
+ arg_dry = true;
+ break;
+
+ case 'd':
+ arg_no_wtmp = true;
+ break;
+
+ case 'n':
+ arg_no_sync = true;
+ break;
+
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
+ case 'i':
+ case 'h':
+ /* Compatibility nops */
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ if (optind < argc) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+
+ return 1;
+}
+
+static int shutdown_parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_HELP = 0x100,
+ ARG_NO_WALL
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, ARG_HELP },
+ { "halt", no_argument, NULL, 'H' },
+ { "poweroff", no_argument, NULL, 'P' },
+ { "reboot", no_argument, NULL, 'r' },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "HPrhkt:a", options, NULL)) >= 0) {
+ switch (c) {
+
+ case ARG_HELP:
+ shutdown_help();
+ return 0;
+
+ case 'H':
+ arg_action = ACTION_HALT;
+ break;
+
+ case 'P':
+ arg_action = ACTION_POWEROFF;
+ break;
+
+ case 'r':
+ arg_action = ACTION_REBOOT;
+ break;
+
+ case 'h':
+ if (arg_action != ACTION_HALT)
+ arg_action = ACTION_POWEROFF;
+ break;
+
+ case 'k':
+ arg_dry = true;
+ break;
+
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
+ case 't':
+ case 'a':
+ /* Compatibility nops */
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ if (argc > optind && !streq(argv[optind], "now"))
+ log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]);
+
+ /* We ignore the time argument */
+ if (argc > optind + 1)
+ arg_wall = argv + optind + 1;
+
+ optind = argc;
+
+ return 1;
+}
+
+static int telinit_parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_HELP = 0x100,
+ ARG_NO_WALL
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, ARG_HELP },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
+ { NULL, 0, NULL, 0 }
+ };
+
+ static const struct {
+ char from;
+ enum action to;
+ } table[] = {
+ { '0', ACTION_POWEROFF },
+ { '6', ACTION_REBOOT },
+ { '1', ACTION_RESCUE },
+ { '2', ACTION_RUNLEVEL2 },
+ { '3', ACTION_RUNLEVEL3 },
+ { '4', ACTION_RUNLEVEL4 },
+ { '5', ACTION_RUNLEVEL5 },
+ { 's', ACTION_RESCUE },
+ { 'S', ACTION_RESCUE },
+ { 'q', ACTION_RELOAD },
+ { 'Q', ACTION_RELOAD },
+ { 'u', ACTION_REEXEC },
+ { 'U', ACTION_REEXEC }
+ };
+
+ unsigned i;
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
+ switch (c) {
+
+ case ARG_HELP:
+ telinit_help();
+ return 0;
+
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ if (optind >= argc) {
+ telinit_help();
+ return -EINVAL;
+ }
+
+ if (optind + 1 < argc) {
+ log_error("Too many arguments.");
+ return -EINVAL;
+ }
+
+ if (strlen(argv[optind]) != 1) {
+ log_error("Expected single character argument.");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < ELEMENTSOF(table); i++)
+ if (table[i].from == argv[optind][0])
+ break;
+
+ if (i >= ELEMENTSOF(table)) {
+ log_error("Unknown command %s.", argv[optind]);
+ return -EINVAL;
+ }
+
+ arg_action = table[i].to;
+
+ optind ++;
+
+ return 1;
+}
+
+static int runlevel_parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_HELP = 0x100,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, ARG_HELP },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
+ switch (c) {
+
+ case ARG_HELP:
+ runlevel_help();
+ return 0;
+
+ case '?':
+ return -EINVAL;
- dbus_message_iter_recurse(&iter, &sub);
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
- if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
- dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ if (optind < argc) {
+ log_error("Too many arguments.");
+ return -EINVAL;
}
- dbus_message_iter_recurse(&sub, &sub2);
+ return 1;
+}
- while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
- const char *text;
+static int parse_argv(int argc, char *argv[]) {
+ assert(argc >= 0);
+ assert(argv);
- if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
+ if (program_invocation_short_name) {
+
+ if (strstr(program_invocation_short_name, "halt")) {
+ arg_action = ACTION_HALT;
+ return halt_parse_argv(argc, argv);
+ } else if (strstr(program_invocation_short_name, "poweroff")) {
+ arg_action = ACTION_POWEROFF;
+ return halt_parse_argv(argc, argv);
+ } else if (strstr(program_invocation_short_name, "reboot")) {
+ arg_action = ACTION_REBOOT;
+ return halt_parse_argv(argc, argv);
+ } else if (strstr(program_invocation_short_name, "shutdown")) {
+ arg_action = ACTION_POWEROFF;
+ return shutdown_parse_argv(argc, argv);
+ } else if (strstr(program_invocation_short_name, "init")) {
+ arg_action = ACTION_INVALID;
+ return telinit_parse_argv(argc, argv);
+ } else if (strstr(program_invocation_short_name, "runlevel")) {
+ arg_action = ACTION_RUNLEVEL;
+ return runlevel_parse_argv(argc, argv);
}
-
- dbus_message_iter_get_basic(&sub2, &text);
- printf("%s\n", text);
-
- dbus_message_iter_next(&sub2);
}
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
+ arg_action = ACTION_SYSTEMCTL;
+ return systemctl_parse_argv(argc, argv);
+}
- if (reply)
- dbus_message_unref(reply);
+static int action_to_runlevel(void) {
+
+ static const char table[_ACTION_MAX] = {
+ [ACTION_HALT] = '0',
+ [ACTION_POWEROFF] = '0',
+ [ACTION_REBOOT] = '6',
+ [ACTION_RUNLEVEL2] = '2',
+ [ACTION_RUNLEVEL3] = '3',
+ [ACTION_RUNLEVEL4] = '4',
+ [ACTION_RUNLEVEL5] = '5',
+ [ACTION_RESCUE] = '1'
+ };
- dbus_error_free(&error);
+ assert(arg_action < _ACTION_MAX);
- return r;
+ return table[arg_action];
}
-static int set_environment(DBusConnection *bus, char **args, unsigned n) {
+static int talk_upstart(void) {
DBusMessage *m = NULL, *reply = NULL;
DBusError error;
- int r;
- const char *method;
+ int previous, rl, r;
+ char
+ env1_buf[] = "RUNLEVEL=X",
+ env2_buf[] = "PREVLEVEL=X";
+ char *env1 = env1_buf, *env2 = env2_buf;
+ const char *emit = "runlevel";
+ dbus_bool_t b_false = FALSE;
DBusMessageIter iter, sub;
- unsigned i;
+ DBusConnection *bus;
dbus_error_init(&error);
- method = streq(args[0], "set-environment")
- ? "SetEnvironment"
- : "UnsetEnvironment";
+ if (!(rl = action_to_runlevel()))
+ return 0;
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method))) {
+ if (utmp_get_runlevel(&previous, NULL) < 0)
+ previous = 'N';
- log_error("Could not allocate message.");
- return -ENOMEM;
+ if (!(bus = dbus_connection_open("unix:abstract=/com/ubuntu/upstart", &error))) {
+ if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
+ r = 0;
+ goto finish;
+ }
+
+ log_error("Failed to connect to Upstart bus: %s", error.message);
+ r = -EIO;
+ goto finish;
}
- dbus_message_iter_init_append(m, &iter);
+ if ((r = bus_check_peercred(bus)) < 0) {
+ log_error("Failed to verify owner of bus.");
+ goto finish;
+ }
- if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
- log_error("Could not append arguments to message.");
+ if (!(m = dbus_message_new_method_call(
+ "com.ubuntu.Upstart",
+ "/com/ubuntu/Upstart",
+ "com.ubuntu.Upstart0_6",
+ "EmitEvent"))) {
+
+ log_error("Could not allocate message.");
r = -ENOMEM;
goto finish;
}
- for (i = 1; i < n; i++)
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
+ dbus_message_iter_init_append(m, &iter);
- if (!dbus_message_iter_close_container(&iter, &sub)) {
+ env1_buf[sizeof(env1_buf)-2] = rl;
+ env2_buf[sizeof(env2_buf)-2] = previous;
+
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
+ !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
+ !dbus_message_iter_close_container(&iter, &sub) ||
+ !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
log_error("Could not append arguments to message.");
r = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+
+ if (error_is_no_service(&error)) {
+ r = 0;
+ goto finish;
+ }
+
log_error("Failed to issue method call: %s", error.message);
r = -EIO;
goto finish;
}
- r = 0;
+ r = 1;
finish:
if (m)
if (reply)
dbus_message_unref(reply);
+ if (bus)
+ dbus_connection_unref(bus);
+
dbus_error_free(&error);
return r;
}
-static int help(void) {
-
- printf("%s [options]\n\n"
- " -h --help Show this help\n"
- " -t --type=TYPE List only units of a particular type\n"
- " -a --all Show all units, including dead ones\n"
- " --replace When installing a new job, replace existing conflicting ones\n"
- " --system Connect to system bus\n"
- " --session Connect to session bus\n"
- " --block Wait until operation finished\n\n"
- "Commands:\n"
- " list-units List units\n"
- " list-jobs List jobs\n"
- " clear-jobs Cancel all jobs\n"
- " load [NAME...] Load one or more units\n"
- " cancel [JOB...] Cancel one or more jobs\n"
- " start [NAME...] Start one or more units\n"
- " stop [NAME...] Stop one or more units\n"
- " restart [NAME...] Restart one or more units\n"
- " reload [NAME...] Reload one or more units\n"
- " isolate [NAME] Start one unit and stop all others\n"
- " monitor Monitor unit/job changes\n"
- " dump Dump server status\n"
- " snapshot [NAME] Create a snapshot\n"
- " daemon-reload Reload daemon configuration\n"
- " daemon-reexecute Reexecute daemon\n"
- " daemon-exit Ask the daemon to quit\n"
- " show-environment Dump environment\n"
- " set-environment [NAME=VALUE...] Set one or more environment variables\n"
- " unset-environment [NAME...] Unset one or more environment variables\n",
- __progname);
-
- return 0;
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_REPLACE = 0x100,
- ARG_SESSION,
- ARG_SYSTEM,
- ARG_BLOCK,
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "type", required_argument, NULL, 't' },
- { "all", no_argument, NULL, 'a' },
- { "replace", no_argument, NULL, ARG_REPLACE },
- { "session", no_argument, NULL, ARG_SESSION },
- { "system", no_argument, NULL, ARG_SYSTEM },
- { "block", no_argument, NULL, ARG_BLOCK }
- };
-
- int c;
+static int talk_initctl(void) {
+ struct init_request request;
+ int r, fd;
+ char rl;
- assert(argc >= 1);
- assert(argv);
+ if (!(rl = action_to_runlevel()))
+ return 0;
- while ((c = getopt_long(argc, argv, "hta", options, NULL)) >= 0) {
+ zero(request);
+ request.magic = INIT_MAGIC;
+ request.sleeptime = 0;
+ request.cmd = INIT_CMD_RUNLVL;
+ request.runlevel = rl;
- switch (c) {
+ if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
- case 'h':
- help();
+ if (errno == ENOENT)
return 0;
- case 't':
- arg_type = optarg;
- break;
-
- case 'a':
- arg_all = true;
- break;
-
- case ARG_REPLACE:
- arg_replace = true;
- break;
-
- case ARG_SESSION:
- arg_session = true;
- break;
-
- case ARG_SYSTEM:
- arg_session = false;
- break;
-
- case ARG_BLOCK:
- arg_block = true;
- break;
+ log_error("Failed to open "INIT_FIFO": %m");
+ return -errno;
+ }
- case '?':
- return -EINVAL;
+ errno = 0;
+ r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
+ close_nointr_nofail(fd);
- default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
- }
+ if (r < 0) {
+ log_error("Failed to write to "INIT_FIFO": %m");
+ return errno ? -errno : -EIO;
}
return 1;
}
-int main(int argc, char*argv[]) {
+static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
static const struct {
const char* verb;
{ "stop", MORE, 2, start_unit },
{ "reload", MORE, 2, start_unit },
{ "restart", MORE, 2, start_unit },
- { "isolate", EQUAL, 2, isolate_unit },
+ { "isolate", EQUAL, 2, start_unit },
+ { "check", MORE, 2, check_unit },
+ { "show", MORE, 1, show },
+ { "status", MORE, 2, show },
{ "monitor", EQUAL, 1, monitor },
{ "dump", EQUAL, 1, dump },
{ "snapshot", LESS, 2, snapshot },
+ { "delete", MORE, 2, delete_snapshot },
{ "daemon-reload", EQUAL, 1, clear_jobs },
{ "daemon-reexec", EQUAL, 1, clear_jobs },
{ "daemon-exit", EQUAL, 1, clear_jobs },
{ "show-environment", EQUAL, 1, show_enviroment },
{ "set-environment", MORE, 2, set_environment },
{ "unset-environment", MORE, 2, set_environment },
+ { "halt", EQUAL, 1, start_special },
+ { "poweroff", EQUAL, 1, start_special },
+ { "reboot", EQUAL, 1, start_special },
+ { "default", EQUAL, 1, start_special },
+ { "rescue", EQUAL, 1, start_special },
+ { "emergency", EQUAL, 1, start_special }
};
- int r, retval = 1, left;
+ int left;
unsigned i;
- DBusConnection *bus = NULL;
- DBusError error;
-
- dbus_error_init(&error);
- log_set_target(LOG_TARGET_CONSOLE);
- log_parse_environment();
-
- if ((r = parse_argv(argc, argv)) < 0)
- goto finish;
- else if (r == 0) {
- retval = 0;
- goto finish;
- }
+ assert(bus);
+ assert(argc >= 0);
+ assert(argv);
left = argc - optind;
/* Special rule: no arguments means "list-units" */
i = 0;
else {
+ if (streq(argv[optind], "help")) {
+ systemctl_help();
+ return 0;
+ }
+
for (i = 0; i < ELEMENTSOF(verbs); i++)
if (streq(argv[optind], verbs[i].verb))
break;
if (i >= ELEMENTSOF(verbs)) {
log_error("Unknown operation %s", argv[optind]);
- goto finish;
+ return -EINVAL;
}
}
case EQUAL:
if (left != verbs[i].argc) {
log_error("Invalid number of arguments.");
- goto finish;
+ return -EINVAL;
}
break;
case MORE:
if (left < verbs[i].argc) {
log_error("Too few arguments.");
- goto finish;
+ return -EINVAL;
}
break;
case LESS:
if (left > verbs[i].argc) {
log_error("Too many arguments.");
- goto finish;
+ return -EINVAL;
}
break;
assert_not_reached("Unknown comparison operator.");
}
- if (!(bus = dbus_bus_get(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error))) {
- log_error("Failed to get D-Bus connection: %s", error.message);
+ return verbs[i].dispatch(bus, argv + optind, left);
+}
+
+static int reload_with_fallback(DBusConnection *bus) {
+ int r;
+
+ if (bus) {
+ /* First, try systemd via D-Bus. */
+ if ((r = clear_jobs(bus, NULL, 0)) > 0)
+ return 0;
+ }
+
+ /* Nothing else worked, so let's try signals */
+ assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
+
+ if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
+ log_error("kill() failed: %m");
+ return -errno;
+ }
+
+ return 0;
+}
+
+static int start_with_fallback(DBusConnection *bus) {
+ int r;
+
+ warn_wall(arg_action);
+
+ if (bus) {
+ /* First, try systemd via D-Bus. */
+ if ((r = start_unit(bus, NULL, 0)) > 0)
+ return 0;
+
+ /* Hmm, talking to systemd via D-Bus didn't work. Then
+ * let's try to talk to Upstart via D-Bus. */
+ if ((r = talk_upstart()) > 0)
+ return 0;
+ }
+
+ /* Nothing else worked, so let's try
+ * /dev/initctl */
+ if ((r = talk_initctl()) != 0)
+ return 0;
+
+ log_error("Failed to talk to init daemon.");
+ return -EIO;
+}
+
+static int halt_main(DBusConnection *bus) {
+ int r;
+
+ if (!arg_dry && !arg_immediate)
+ return start_with_fallback(bus);
+
+ if (!arg_no_wtmp)
+ if ((r = utmp_put_shutdown(0)) < 0)
+ log_warning("Failed to write utmp record: %s", strerror(-r));
+
+ if (!arg_no_sync)
+ sync();
+
+ if (arg_dry)
+ return 0;
+
+ /* Make sure C-A-D is handled by the kernel from this
+ * point on... */
+ reboot(RB_ENABLE_CAD);
+
+ switch (arg_action) {
+
+ case ACTION_HALT:
+ log_info("Halting");
+ reboot(RB_HALT_SYSTEM);
+ break;
+
+ case ACTION_POWEROFF:
+ log_info("Powering off");
+ reboot(RB_POWER_OFF);
+ break;
+
+ case ACTION_REBOOT:
+ log_info("Rebooting");
+ reboot(RB_AUTOBOOT);
+ break;
+
+ default:
+ assert_not_reached("Unknown halt action.");
+ }
+
+ /* We should never reach this. */
+ return -ENOSYS;
+}
+
+static int runlevel_main(void) {
+ int r, runlevel, previous;
+
+ if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
+ printf("unknown");
+ return r;
+ }
+
+ printf("%c %c\n",
+ previous <= 0 ? 'N' : previous,
+ runlevel <= 0 ? 'N' : runlevel);
+
+ return 0;
+}
+
+int main(int argc, char*argv[]) {
+ int r, retval = 1;
+ DBusConnection *bus = NULL;
+ DBusError error;
+
+ dbus_error_init(&error);
+
+ log_parse_environment();
+
+ if ((r = parse_argv(argc, argv)) < 0)
+ goto finish;
+ else if (r == 0) {
+ retval = 0;
+ goto finish;
+ }
+
+ /* /sbin/runlevel doesn't need to communicate via D-Bus, so
+ * let's shortcut this */
+ if (arg_action == ACTION_RUNLEVEL) {
+ retval = runlevel_main() < 0;
goto finish;
}
- dbus_connection_set_exit_on_disconnect(bus, FALSE);
+ bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
+
+ switch (arg_action) {
+
+ case ACTION_SYSTEMCTL: {
+
+ if (!bus) {
+ log_error("Failed to get D-Bus connection: %s", error.message);
+ goto finish;
+ }
+
+ retval = systemctl_main(bus, argc, argv) < 0;
+ break;
+ }
+
+ case ACTION_HALT:
+ case ACTION_POWEROFF:
+ case ACTION_REBOOT:
+ retval = halt_main(bus) < 0;
+ break;
+
+ case ACTION_RUNLEVEL2:
+ case ACTION_RUNLEVEL3:
+ case ACTION_RUNLEVEL4:
+ case ACTION_RUNLEVEL5:
+ case ACTION_RESCUE:
+ case ACTION_EMERGENCY:
+ case ACTION_DEFAULT:
+ retval = start_with_fallback(bus) < 0;
+ break;
+
+ case ACTION_RELOAD:
+ case ACTION_REEXEC:
+ retval = reload_with_fallback(bus) < 0;
+ break;
- retval = verbs[i].dispatch(bus, argv + optind, left) < 0;
+ case ACTION_INVALID:
+ case ACTION_RUNLEVEL:
+ default:
+ assert_not_reached("Unknown action");
+ }
finish:
if (bus)
dbus_connection_unref(bus);
+ dbus_error_free(&error);
+
dbus_shutdown();
return retval;
~ianmdlvl / elogind.git / blobdiff