#include <sys/ioctl.h>
#include <termios.h>
#include <unistd.h>
+#include <fcntl.h>
+#include <sys/socket.h>
#include <dbus/dbus.h>
#include "macro.h"
#include "set.h"
#include "utmp-wtmp.h"
+#include "special.h"
+#include "initreq.h"
+#include "strv.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_RUNLEVEL4,
ACTION_RUNLEVEL5,
ACTION_RESCUE,
+ ACTION_EMERGENCY,
+ ACTION_DEFAULT,
ACTION_RELOAD,
ACTION_REEXEC,
ACTION_RUNLEVEL,
static bool error_is_no_service(DBusError *error) {
+ assert(error);
+
if (!dbus_error_is_set(error))
return false;
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 bus_check_peercred(DBusConnection *c) {
+ int fd;
+ struct ucred ucred;
+ socklen_t l;
+
+ assert(c);
+
+ assert_se(dbus_connection_get_unix_fd(c, &fd));
+
+ l = sizeof(struct ucred);
+ if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0) {
+ log_error("SO_PEERCRED failed: %m");
+ return -errno;
+ }
+
+ if (l != sizeof(struct ucred)) {
+ log_error("SO_PEERCRED returned wrong size.");
+ return -E2BIG;
+ }
+
+ if (ucred.uid != 0)
+ return -EPERM;
+
+ return 1;
+}
+
static int columns(void) {
static int parsed_columns = 0;
const char *e;
}
-static void warn_wall(void) {
+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_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 (!table[arg_action])
+ if (arg_no_wall)
+ return;
+
+ if (arg_wall) {
+ char *p;
+
+ if (!(p = strv_join(arg_wall, " "))) {
+ log_error("Failed to join strings.");
+ return;
+ }
+
+ if (*p) {
+ utmp_wall(p);
+ free(p);
+ return;
+ }
+
+ free(p);
+ }
+
+ if (!table[action])
return;
- utmp_wall(table[arg_action]);
+ 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",
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);
} 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 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. */
assert(method);
assert(name);
assert(mode);
- assert(!arg_block || s);
+ assert(arg_no_block || s);
dbus_error_init(&error);
goto finish;
}
- if (arg_block) {
+ if (!arg_no_block) {
const char *path;
char *p;
return r;
}
+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;
+}
+
static int start_unit(DBusConnection *bus, char **args, unsigned n) {
static const char * const table[_ACTION_MAX] = {
- [ACTION_HALT] = "halt.target",
- [ACTION_POWEROFF] = "poweroff.target",
- [ACTION_REBOOT] = "reboot.target",
- [ACTION_RUNLEVEL2] = "runlevel2.target",
- [ACTION_RUNLEVEL3] = "runlevel3.target",
- [ACTION_RUNLEVEL4] = "runlevel4.target",
- [ACTION_RUNLEVEL5] = "runlevel5.target",
- [ACTION_RESCUE] = "rescue.target"
+ [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
};
int r;
unsigned i;
- const char *method, *mode;
+ const char *method, *mode, *one_name;
Set *s = NULL;
- if (arg_action == ACTION_SYSTEMCTL) {
- method =
- streq(args[0], "start") ? "StartUnit" :
- streq(args[0], "stop") ? "StopUnit" :
- streq(args[0], "reload") ? "ReloadUnit" :
- streq(args[0], "restart") ? "RestartUnit" :
- /* isolate */ "StartUnit";
+ assert(bus);
+
+ if (arg_action == ACTION_SYSTEMCTL) {
+ method =
+ streq(args[0], "stop") ? "StopUnit" :
+ streq(args[0], "reload") ? "ReloadUnit" :
+ streq(args[0], "restart") ? "RestartUnit" :
+ "StartUnit";
+
+ 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 {
+ assert(arg_action < ELEMENTSOF(table));
+ assert(table[arg_action]);
+
+ method = "StartUnit";
+
+ mode = (arg_action == ACTION_EMERGENCY ||
+ arg_action == ACTION_RESCUE) ? "isolate" : "replace";
+
+ one_name = table[arg_action];
+ }
+
+ if (!arg_no_block) {
+ if ((r = enable_wait_for_jobs(bus)) < 0) {
+ log_error("Could not watch jobs: %s", strerror(-r));
+ goto finish;
+ }
+
+ if (!(s = set_new(string_hash_func, string_compare_func))) {
+ log_error("Failed to allocate set.");
+ r = -ENOMEM;
+ goto finish;
+ }
+ }
+
+ r = 0;
+
+ 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 (!arg_no_block)
+ r = wait_for_jobs(bus, s);
+
+finish:
+ if (s)
+ set_free_free(s);
+
+ return r;
+}
+
+static int start_special(DBusConnection *bus, char **args, unsigned n) {
+ assert(bus);
+ assert(args);
+
+ warn_wall(verb_to_action(args[0]));
+
+ return start_unit(bus, args, 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;
+ unsigned i;
+
+ assert(bus);
+ assert(args);
+
+ dbus_error_init(&error);
+
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+ const char *state;
+ DBusMessageIter iter, sub;
+
+ 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))) {
+
+ /* Hmm, cannot figure out anything about this unit... */
+ if (!arg_quiet)
+ puts("unknown");
+
+ continue;
+ }
+
+ 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.");
+ 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;
+ 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, &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);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int print_property(const char *name, DBusMessageIter *iter) {
+ assert(name);
+ assert(iter);
+
+ 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
+ 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"))
+ 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_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;
+ }
+
+ break;
+ }
+
+ if (arg_all)
+ printf("%s=[unprintable]\n", name);
+
+ return 0;
+}
+
+static int show_one(DBusConnection *bus, const char *path) {
+ DBusMessage *m = NULL, *reply = NULL;
+ const char *interface = "";
+ int r;
+ DBusError error;
+ DBusMessageIter iter, sub, sub2, sub3;
+
+ assert(bus);
+ assert(path);
+
+ dbus_error_init(&error);
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "GetAll"))) {
+ log_error("Could not allocate message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!dbus_message_append_args(m,
+ DBUS_TYPE_STRING, &interface,
+ 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_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);
+
+ while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
+ const char *name;
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_recurse(&sub2, &sub3);
+
+ if (print_property(name, &sub3) < 0) {
+ log_error("Failed to parse reply.");
+ r = -EIO;
+ goto finish;
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ r = 0;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+static int show(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);
+
+ if (n <= 1) {
+ /* If not argument is specified inspect the manager
+ * itself */
+
+ r = show_one(bus, "/org/freedesktop/systemd1");
+ goto finish;
+ }
+
+ for (i = 1; i < n; i++) {
+ const char *path = NULL;
+ uint32_t id;
- mode =
- streq(args[0], "isolate") ? "isolate" :
- arg_replace ? "replace" :
- "fail";
+ if (safe_atou32(args[i], &id) < 0) {
- if (arg_block) {
- if ((r = enable_wait_for_jobs(bus)) < 0) {
- log_error("Could not watch jobs: %s", strerror(-r));
+ 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 (!(s = set_new(string_hash_func, string_compare_func))) {
- log_error("Failed to allocate set.");
+ 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;
}
- }
- } else {
- assert(arg_action < ELEMENTSOF(table));
- assert(table[arg_action]);
- method = "StartUnit";
- mode = arg_action == ACTION_RESCUE ? "isolate" : "replace";
- }
+ } else {
- r = 0;
+ 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 (arg_action == ACTION_SYSTEMCTL) {
- for (i = 1; i < n; i++)
- if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
+ 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 (arg_block)
- r = wait_for_jobs(bus, s);
+ 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;
+ }
- } else {
- if ((r = start_unit_one(bus, method, table[arg_action], mode, s)) <= 0)
+ if ((r = show_one(bus, path)) < 0)
goto finish;
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
}
+ r = 0;
+
finish:
- if (s)
- set_free_free(s);
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
return r;
}
}
dbus_message_iter_get_basic(&sub, &id);
- puts(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:
static int systemctl_help(void) {
- printf("%s [options]\n\n"
- "Send control commands to the init system.\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"
+ 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 property 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"
- " 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"
+ " check [NAME...] Check whether any of the passed units are active\n"
+ " show [NAME...|JOB...] Show information about one or more units\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"
- " daemon-reload Reload daemon configuration\n"
- " daemon-reexecute Reexecute daemon\n"
- " daemon-exit Ask the daemon to quit\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",
+ " 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"
+ 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 reboot/halt/power-off\n"
- " -w --wtmp-only Don't reboot/halt/power-off, just write wtmp record\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 reboot/halt/power-off\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" :
static int shutdown_help(void) {
- printf("%s [options] [TIME] [WALL...]\n\n"
+ 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 reboot/halt/power-off, just send warnings\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]\n\n"
- "Send control commands to the init system.\n\n"
- " --help Show this help\n\n"
+ 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"
- " 1, 2, 3, 4, 5 Start runlevelX.target unit\n"
- " s, S Start the rescue.target unit\n"
- " q, Q Ask systemd to reload its configuration\n"
- " u, U Ask systemd to reexecute itself\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"
+ 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);
ARG_REPLACE = 0x100,
ARG_SESSION,
ARG_SYSTEM,
- ARG_BLOCK
+ ARG_NO_BLOCK,
+ ARG_NO_WALL
};
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 },
- { NULL, 0, NULL, 0 }
+ { "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, "hta", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
switch (c) {
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;
arg_session = false;
break;
- case ARG_BLOCK:
- arg_block = true;
+ 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 '?':
enum {
ARG_HELP = 0x100,
ARG_HALT,
- ARG_REBOOT
+ ARG_REBOOT,
+ ARG_NO_WALL
};
static const struct option options[] = {
{ "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 }
};
arg_no_sync = true;
break;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case 'i':
case 'h':
/* Compatibility nops */
enum {
ARG_HELP = 0x100,
+ ARG_NO_WALL
};
static const struct option options[] = {
{ "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 }
};
arg_dry = true;
break;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case 't':
case 'a':
/* Compatibility nops */
}
}
+ 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 }
};
telinit_help();
return 0;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case '?':
return -EINVAL;
}
if (optind >= argc) {
- log_error("Argument missing.");
+ telinit_help();
return -EINVAL;
}
return systemctl_parse_argv(argc, argv);
}
-static int talk_upstart(DBusConnection *bus) {
- log_error("Talking upstart");
- return 0;
+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'
+ };
+
+ assert(arg_action < _ACTION_MAX);
+
+ return table[arg_action];
+}
+
+static int talk_upstart(void) {
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusError error;
+ 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;
+ DBusConnection *bus;
+
+ dbus_error_init(&error);
+
+ if (!(rl = action_to_runlevel()))
+ return 0;
+
+ if (utmp_get_runlevel(&previous, NULL) < 0)
+ previous = 'N';
+
+ 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;
+ }
+
+ if ((r = bus_check_peercred(bus)) < 0) {
+ log_error("Failed to verify owner of bus.");
+ goto finish;
+ }
+
+ 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;
+ }
+
+ dbus_message_iter_init_append(m, &iter);
+
+ 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 = 1;
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ if (bus)
+ dbus_connection_unref(bus);
+
+ dbus_error_free(&error);
+
+ return r;
}
static int talk_initctl(void) {
- log_error("Talking initctl");
- return 0;
+ struct init_request request;
+ int r, fd;
+ char rl;
+
+ if (!(rl = action_to_runlevel()))
+ return 0;
+
+ zero(request);
+ request.magic = INIT_MAGIC;
+ request.sleeptime = 0;
+ request.cmd = INIT_CMD_RUNLVL;
+ request.runlevel = rl;
+
+ if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
+
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open "INIT_FIFO": %m");
+ return -errno;
+ }
+
+ errno = 0;
+ r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
+ close_nointr_nofail(fd);
+
+ if (r < 0) {
+ log_error("Failed to write to "INIT_FIFO": %m");
+ return errno ? -errno : -EIO;
+ }
+
+ return 1;
}
static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
{ "reload", MORE, 2, start_unit },
{ "restart", MORE, 2, start_unit },
{ "isolate", EQUAL, 2, start_unit },
+ { "check", MORE, 2, check_unit },
+ { "show", MORE, 1, 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 left;
/* 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;
static int start_with_fallback(DBusConnection *bus) {
int r;
- warn_wall();
+ warn_wall(arg_action);
if (bus) {
/* First, try systemd via D-Bus. */
/* 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(bus)) > 0)
+ if ((r = talk_upstart()) > 0)
return 0;
}
/* Nothing else worked, so let's try
* /dev/initctl */
- return talk_initctl();
+ if ((r = talk_initctl()) != 0)
+ return 0;
+
+ log_error("Failed to talk to init daemon.");
+ return -EIO;
}
static int halt_main(DBusConnection *bus) {
if (!arg_immediate)
return start_with_fallback(bus);
- warn_wall();
-
if (!arg_no_wtmp)
if ((r = utmp_put_shutdown(0)) < 0)
log_warning("Failed to write utmp record: %s", strerror(-r));
goto finish;
}
- if ((bus = dbus_bus_get(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error)))
+ /* If we are root, then let's not go via the bus */
+ if (geteuid() == 0 && !arg_session) {
+ bus = dbus_connection_open("unix:abstract=/org/freedesktop/systemd1/private", &error);
+
+ if (bus && bus_check_peercred(bus) < 0) {
+ log_error("Failed to verify owner of bus.");
+ goto finish;
+ }
+ } else
+ bus = dbus_bus_get(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error);
+
+ if (bus)
dbus_connection_set_exit_on_disconnect(bus, FALSE);
switch (arg_action) {
case ACTION_RUNLEVEL4:
case ACTION_RUNLEVEL5:
case ACTION_RESCUE:
+ case ACTION_EMERGENCY:
+ case ACTION_DEFAULT:
retval = start_with_fallback(bus) < 0;
break;
retval = reload_with_fallback(bus) < 0;
break;
+ case ACTION_INVALID:
+ case ACTION_RUNLEVEL:
default:
assert_not_reached("Unknown action");
}
~ianmdlvl / elogind.git / blobdiff