2013-07-02 03:47:23 +02:00
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <dbus/dbus.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <getopt.h>
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#include <pwd.h>
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#include <locale.h>
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#include "log.h"
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#include "util.h"
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#include "macro.h"
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#include "pager.h"
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#include "dbus-common.h"
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#include "build.h"
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#include "strv.h"
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2013-07-11 00:27:54 +02:00
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#include "unit-name.h"
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2013-07-02 03:47:23 +02:00
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#include "cgroup-show.h"
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#include "spawn-polkit-agent.h"
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static char **arg_property = NULL;
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static bool arg_all = false;
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static bool arg_full = false;
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static bool arg_no_pager = false;
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static const char *arg_kill_who = NULL;
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static int arg_signal = SIGTERM;
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static enum transport {
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TRANSPORT_NORMAL,
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TRANSPORT_SSH,
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TRANSPORT_POLKIT
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} arg_transport = TRANSPORT_NORMAL;
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static bool arg_ask_password = true;
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static char *arg_host = NULL;
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static char *arg_user = NULL;
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static void pager_open_if_enabled(void) {
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/* Cache result before we open the pager */
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if (arg_no_pager)
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return;
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pager_open(false);
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}
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static int list_machines(DBusConnection *bus, char **args, unsigned n) {
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_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
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DBusMessageIter iter, sub, sub2;
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unsigned k = 0;
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int r;
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pager_open_if_enabled();
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r = bus_method_call_with_reply (
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bus,
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"org.freedesktop.machine1",
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"/org/freedesktop/machine1",
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"org.freedesktop.machine1.Manager",
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"ListMachines",
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&reply,
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NULL,
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DBUS_TYPE_INVALID);
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if (r)
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return r;
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if (!dbus_message_iter_init(reply, &iter) ||
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dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
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dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
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log_error("Failed to parse reply.");
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return -EIO;
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}
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dbus_message_iter_recurse(&iter, &sub);
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if (on_tty())
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printf("%-32s %-9s %-16s\n", "MACHINE", "CONTAINER", "SERVICE");
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while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
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const char *name, *class, *service, *object;
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if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
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log_error("Failed to parse reply.");
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return -EIO;
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}
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dbus_message_iter_recurse(&sub, &sub2);
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if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
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bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &class, true) < 0 ||
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bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &service, true) < 0 ||
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bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &object, false) < 0) {
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log_error("Failed to parse reply.");
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return -EIO;
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}
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printf("%-32s %-9s %-16s\n", name, class, service);
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k++;
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dbus_message_iter_next(&sub);
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}
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if (on_tty())
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printf("\n%u machines listed.\n", k);
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return 0;
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}
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2013-07-11 00:27:54 +02:00
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static int show_scope_cgroup(DBusConnection *bus, const char *unit) {
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const char *interface = "org.freedesktop.systemd1.Scope";
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const char *property = "ControlGroup";
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_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
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_cleanup_free_ char *path = NULL;
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DBusMessageIter iter, sub;
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const char *cgroup;
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DBusError error;
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int r, output_flags;
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unsigned c;
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assert(bus);
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assert(unit);
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if (arg_transport == TRANSPORT_SSH)
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return 0;
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path = unit_dbus_path_from_name(unit);
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if (!path)
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return log_oom();
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r = bus_method_call_with_reply(
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bus,
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"org.freedesktop.systemd1",
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path,
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"org.freedesktop.DBus.Properties",
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"Get",
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&reply,
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&error,
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DBUS_TYPE_STRING, &interface,
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DBUS_TYPE_STRING, &property,
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DBUS_TYPE_INVALID);
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if (r < 0) {
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log_error("Failed to query ControlGroup: %s", bus_error(&error, r));
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dbus_error_free(&error);
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return r;
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}
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if (!dbus_message_iter_init(reply, &iter) ||
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dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
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log_error("Failed to parse reply.");
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return -EINVAL;
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}
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dbus_message_iter_recurse(&iter, &sub);
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if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
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log_error("Failed to parse reply.");
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return -EINVAL;
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}
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dbus_message_iter_get_basic(&sub, &cgroup);
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output_flags =
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arg_all * OUTPUT_SHOW_ALL |
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arg_full * OUTPUT_FULL_WIDTH;
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c = columns();
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if (c > 18)
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c -= 18;
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else
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c = 0;
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show_cgroup_by_path(cgroup, "\t\t ", c, false, output_flags);
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return 0;
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}
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2013-07-02 03:47:23 +02:00
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typedef struct MachineStatusInfo {
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const char *name;
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sd_id128_t id;
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const char *class;
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const char *service;
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2013-07-11 00:27:54 +02:00
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const char *scope;
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2013-07-02 03:47:23 +02:00
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const char *root_directory;
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pid_t leader;
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usec_t timestamp;
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} MachineStatusInfo;
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2013-07-11 00:27:54 +02:00
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static void print_machine_status_info(DBusConnection *bus, MachineStatusInfo *i) {
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2013-07-02 03:47:23 +02:00
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char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
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char since2[FORMAT_TIMESTAMP_MAX], *s2;
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assert(i);
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fputs(strna(i->name), stdout);
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if (!sd_id128_equal(i->id, SD_ID128_NULL))
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printf("(" SD_ID128_FORMAT_STR ")\n", SD_ID128_FORMAT_VAL(i->id));
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else
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putchar('\n');
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s1 = format_timestamp_relative(since1, sizeof(since1), i->timestamp);
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s2 = format_timestamp(since2, sizeof(since2), i->timestamp);
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if (s1)
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printf("\t Since: %s; %s\n", s2, s1);
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else if (s2)
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printf("\t Since: %s\n", s2);
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if (i->leader > 0) {
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_cleanup_free_ char *t = NULL;
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printf("\t Leader: %u", (unsigned) i->leader);
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get_process_comm(i->leader, &t);
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if (t)
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printf(" (%s)", t);
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putchar('\n');
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}
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if (i->service) {
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printf("\t Service: %s", i->service);
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if (i->class)
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printf("; class %s", i->class);
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putchar('\n');
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} else if (i->class)
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printf("\t Class: %s\n", i->class);
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if (i->root_directory)
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printf("\t Root: %s\n", i->root_directory);
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2013-07-11 00:27:54 +02:00
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if (i->scope) {
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printf("\t Unit: %s\n", i->scope);
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show_scope_cgroup(bus, i->scope);
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2013-07-02 03:47:23 +02:00
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}
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}
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static int status_property_machine(const char *name, DBusMessageIter *iter, MachineStatusInfo *i) {
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assert(name);
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assert(iter);
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assert(i);
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switch (dbus_message_iter_get_arg_type(iter)) {
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case DBUS_TYPE_STRING: {
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const char *s;
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dbus_message_iter_get_basic(iter, &s);
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if (!isempty(s)) {
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if (streq(name, "Name"))
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i->name = s;
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else if (streq(name, "Class"))
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i->class = s;
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else if (streq(name, "Service"))
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i->service = s;
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2013-07-11 00:27:54 +02:00
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else if (streq(name, "Scope"))
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i->scope = s;
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2013-07-02 03:47:23 +02:00
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else if (streq(name, "RootDirectory"))
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i->root_directory = s;
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}
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break;
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}
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case DBUS_TYPE_UINT32: {
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uint32_t u;
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dbus_message_iter_get_basic(iter, &u);
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if (streq(name, "Leader"))
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i->leader = (pid_t) u;
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break;
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}
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case DBUS_TYPE_UINT64: {
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uint64_t u;
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dbus_message_iter_get_basic(iter, &u);
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if (streq(name, "Timestamp"))
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i->timestamp = (usec_t) u;
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break;
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}
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case DBUS_TYPE_ARRAY: {
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DBusMessageIter sub;
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dbus_message_iter_recurse(iter, &sub);
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if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE && streq(name, "Id")) {
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void *v;
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int n;
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dbus_message_iter_get_fixed_array(&sub, &v, &n);
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if (n == 0)
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i->id = SD_ID128_NULL;
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else if (n == 16)
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memcpy(&i->id, v, n);
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}
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break;
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}
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}
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return 0;
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}
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static int print_property(const char *name, DBusMessageIter *iter) {
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assert(name);
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assert(iter);
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if (arg_property && !strv_find(arg_property, name))
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return 0;
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if (generic_print_property(name, iter, arg_all) > 0)
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return 0;
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if (arg_all)
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printf("%s=[unprintable]\n", name);
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return 0;
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}
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static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
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_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
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const char *interface = "";
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int r;
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DBusMessageIter iter, sub, sub2, sub3;
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MachineStatusInfo machine_info = {};
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assert(path);
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assert(new_line);
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r = bus_method_call_with_reply(
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bus,
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"org.freedesktop.machine1",
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path,
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"org.freedesktop.DBus.Properties",
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"GetAll",
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&reply,
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NULL,
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DBUS_TYPE_STRING, &interface,
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DBUS_TYPE_INVALID);
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if (r < 0)
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goto finish;
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if (!dbus_message_iter_init(reply, &iter) ||
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dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
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dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
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log_error("Failed to parse reply.");
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r = -EIO;
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goto finish;
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}
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dbus_message_iter_recurse(&iter, &sub);
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if (*new_line)
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printf("\n");
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*new_line = true;
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|
|
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 (show_properties)
|
|
|
|
r = print_property(name, &sub3);
|
|
|
|
else
|
|
|
|
r = status_property_machine(name, &sub3, &machine_info);
|
|
|
|
|
|
|
|
if (r < 0) {
|
|
|
|
log_error("Failed to parse reply.");
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
dbus_message_iter_next(&sub);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!show_properties)
|
2013-07-11 00:27:54 +02:00
|
|
|
print_machine_status_info(bus, &machine_info);
|
2013-07-02 03:47:23 +02:00
|
|
|
|
|
|
|
r = 0;
|
|
|
|
|
|
|
|
finish:
|
|
|
|
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int show(DBusConnection *bus, char **args, unsigned n) {
|
|
|
|
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
|
|
|
|
int r, ret = 0;
|
|
|
|
DBusError error;
|
|
|
|
unsigned i;
|
|
|
|
bool show_properties, new_line = false;
|
|
|
|
|
|
|
|
assert(bus);
|
|
|
|
assert(args);
|
|
|
|
|
|
|
|
dbus_error_init(&error);
|
|
|
|
|
|
|
|
show_properties = !strstr(args[0], "status");
|
|
|
|
|
|
|
|
pager_open_if_enabled();
|
|
|
|
|
|
|
|
if (show_properties && n <= 1) {
|
|
|
|
/* If not argument is specified inspect the manager
|
|
|
|
* itself */
|
|
|
|
|
|
|
|
ret = show_one(args[0], bus, "/org/freedesktop/machine1", show_properties, &new_line);
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 1; i < n; i++) {
|
|
|
|
const char *path = NULL;
|
|
|
|
|
|
|
|
ret = bus_method_call_with_reply(
|
|
|
|
bus,
|
|
|
|
"org.freedesktop.machine1",
|
|
|
|
"/org/freedesktop/machine1",
|
|
|
|
"org.freedesktop.machine1.Manager",
|
|
|
|
"GetMachine",
|
|
|
|
&reply,
|
|
|
|
NULL,
|
|
|
|
DBUS_TYPE_STRING, &args[i],
|
|
|
|
DBUS_TYPE_INVALID);
|
|
|
|
if (ret < 0)
|
|
|
|
goto finish;
|
|
|
|
|
|
|
|
if (!dbus_message_get_args(reply, &error,
|
|
|
|
DBUS_TYPE_OBJECT_PATH, &path,
|
|
|
|
DBUS_TYPE_INVALID)) {
|
|
|
|
log_error("Failed to parse reply: %s", bus_error_message(&error));
|
|
|
|
ret = -EIO;
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
r = show_one(args[0], bus, path, show_properties, &new_line);
|
|
|
|
if (r != 0)
|
|
|
|
ret = r;
|
|
|
|
}
|
|
|
|
|
|
|
|
finish:
|
|
|
|
dbus_error_free(&error);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kill_machine(DBusConnection *bus, char **args, unsigned n) {
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
assert(args);
|
|
|
|
|
|
|
|
if (!arg_kill_who)
|
|
|
|
arg_kill_who = "all";
|
|
|
|
|
|
|
|
for (i = 1; i < n; i++) {
|
|
|
|
int r;
|
|
|
|
|
|
|
|
r = bus_method_call_with_reply (
|
|
|
|
bus,
|
|
|
|
"org.freedesktop.machine1",
|
|
|
|
"/org/freedesktop/machine1",
|
|
|
|
"org.freedesktop.machine1.Manager",
|
|
|
|
"KillMachine",
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
DBUS_TYPE_STRING, &args[i],
|
|
|
|
DBUS_TYPE_STRING, &arg_kill_who,
|
|
|
|
DBUS_TYPE_INT32, &arg_signal,
|
|
|
|
DBUS_TYPE_INVALID);
|
|
|
|
if (r)
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int terminate_machine(DBusConnection *bus, char **args, unsigned n) {
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
assert(args);
|
|
|
|
|
|
|
|
for (i = 1; i < n; i++) {
|
|
|
|
int r;
|
|
|
|
|
|
|
|
r = bus_method_call_with_reply (
|
|
|
|
bus,
|
|
|
|
"org.freedesktop.machine1",
|
|
|
|
"/org/freedesktop/machine1",
|
|
|
|
"org.freedesktop.machine1.Manager",
|
|
|
|
"TerminateMachine",
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
DBUS_TYPE_STRING, &args[i],
|
|
|
|
DBUS_TYPE_INVALID);
|
|
|
|
if (r)
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int help(void) {
|
|
|
|
|
|
|
|
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
|
|
|
|
"Send control commands to or query the virtual machine and container registration manager.\n\n"
|
|
|
|
" -h --help Show this help\n"
|
|
|
|
" --version Show package version\n"
|
|
|
|
" -p --property=NAME Show only properties by this name\n"
|
|
|
|
" -a --all Show all properties, including empty ones\n"
|
|
|
|
" --kill-who=WHO Who to send signal to\n"
|
|
|
|
" -l --full Do not ellipsize output\n"
|
|
|
|
" -s --signal=SIGNAL Which signal to send\n"
|
|
|
|
" --no-ask-password Don't prompt for password\n"
|
|
|
|
" -H --host=[USER@]HOST Show information for remote host\n"
|
|
|
|
" -P --privileged Acquire privileges before execution\n"
|
|
|
|
" --no-pager Do not pipe output into a pager\n\n"
|
|
|
|
"Commands:\n"
|
|
|
|
" list List running VMs and containers\n"
|
|
|
|
" status [NAME...] Show VM/container status\n"
|
2013-07-07 04:22:05 +02:00
|
|
|
" show [NAME...] Show properties of one or more VMs/containers\n"
|
2013-07-02 03:47:23 +02:00
|
|
|
" terminate [NAME...] Terminate one or more VMs/containers\n"
|
|
|
|
" kill [NAME...] Send signal to processes of a VM/container\n",
|
|
|
|
program_invocation_short_name);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
|
|
|
|
|
|
enum {
|
|
|
|
ARG_VERSION = 0x100,
|
|
|
|
ARG_NO_PAGER,
|
|
|
|
ARG_KILL_WHO,
|
|
|
|
ARG_NO_ASK_PASSWORD,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct option options[] = {
|
|
|
|
{ "help", no_argument, NULL, 'h' },
|
|
|
|
{ "version", no_argument, NULL, ARG_VERSION },
|
|
|
|
{ "property", required_argument, NULL, 'p' },
|
|
|
|
{ "all", no_argument, NULL, 'a' },
|
|
|
|
{ "full", no_argument, NULL, 'l' },
|
|
|
|
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
|
|
|
|
{ "kill-who", required_argument, NULL, ARG_KILL_WHO },
|
|
|
|
{ "signal", required_argument, NULL, 's' },
|
|
|
|
{ "host", required_argument, NULL, 'H' },
|
|
|
|
{ "privileged", no_argument, NULL, 'P' },
|
|
|
|
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
|
|
|
|
{ NULL, 0, NULL, 0 }
|
|
|
|
};
|
|
|
|
|
|
|
|
int c;
|
|
|
|
|
|
|
|
assert(argc >= 0);
|
|
|
|
assert(argv);
|
|
|
|
|
|
|
|
while ((c = getopt_long(argc, argv, "hp:als:H:P", options, NULL)) >= 0) {
|
|
|
|
|
|
|
|
switch (c) {
|
|
|
|
|
|
|
|
case 'h':
|
|
|
|
help();
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
case ARG_VERSION:
|
|
|
|
puts(PACKAGE_STRING);
|
|
|
|
puts(SYSTEMD_FEATURES);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
case 'p': {
|
|
|
|
char **l;
|
|
|
|
|
|
|
|
l = strv_append(arg_property, optarg);
|
|
|
|
if (!l)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
strv_free(arg_property);
|
|
|
|
arg_property = l;
|
|
|
|
|
|
|
|
/* 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 'l':
|
|
|
|
arg_full = true;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ARG_NO_PAGER:
|
|
|
|
arg_no_pager = true;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ARG_NO_ASK_PASSWORD:
|
|
|
|
arg_ask_password = false;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ARG_KILL_WHO:
|
|
|
|
arg_kill_who = optarg;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 's':
|
|
|
|
arg_signal = signal_from_string_try_harder(optarg);
|
|
|
|
if (arg_signal < 0) {
|
|
|
|
log_error("Failed to parse signal string %s.", optarg);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'P':
|
|
|
|
arg_transport = TRANSPORT_POLKIT;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'H':
|
|
|
|
arg_transport = TRANSPORT_SSH;
|
|
|
|
parse_user_at_host(optarg, &arg_user, &arg_host);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case '?':
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
default:
|
|
|
|
log_error("Unknown option code %c", c);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int machinectl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
|
|
|
|
|
|
|
|
static const struct {
|
|
|
|
const char* verb;
|
|
|
|
const enum {
|
|
|
|
MORE,
|
|
|
|
LESS,
|
|
|
|
EQUAL
|
|
|
|
} argc_cmp;
|
|
|
|
const int argc;
|
|
|
|
int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
|
|
|
|
} verbs[] = {
|
|
|
|
{ "list", LESS, 1, list_machines },
|
|
|
|
{ "status", MORE, 2, show },
|
|
|
|
{ "show", MORE, 1, show },
|
|
|
|
{ "terminate", MORE, 2, terminate_machine },
|
|
|
|
{ "kill", MORE, 2, kill_machine },
|
|
|
|
};
|
|
|
|
|
|
|
|
int left;
|
|
|
|
unsigned i;
|
|
|
|
|
|
|
|
assert(argc >= 0);
|
|
|
|
assert(argv);
|
|
|
|
assert(error);
|
|
|
|
|
|
|
|
left = argc - optind;
|
|
|
|
|
|
|
|
if (left <= 0)
|
|
|
|
/* Special rule: no arguments means "list-sessions" */
|
|
|
|
i = 0;
|
|
|
|
else {
|
|
|
|
if (streq(argv[optind], "help")) {
|
|
|
|
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]);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (verbs[i].argc_cmp) {
|
|
|
|
|
|
|
|
case EQUAL:
|
|
|
|
if (left != verbs[i].argc) {
|
|
|
|
log_error("Invalid number of arguments.");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MORE:
|
|
|
|
if (left < verbs[i].argc) {
|
|
|
|
log_error("Too few arguments.");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
case LESS:
|
|
|
|
if (left > verbs[i].argc) {
|
|
|
|
log_error("Too many arguments.");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
assert_not_reached("Unknown comparison operator.");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!bus) {
|
|
|
|
log_error("Failed to get D-Bus connection: %s", error->message);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
return verbs[i].dispatch(bus, argv + optind, left);
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char*argv[]) {
|
|
|
|
int r, retval = EXIT_FAILURE;
|
|
|
|
DBusConnection *bus = NULL;
|
|
|
|
DBusError error;
|
|
|
|
|
|
|
|
dbus_error_init(&error);
|
|
|
|
|
|
|
|
setlocale(LC_ALL, "");
|
|
|
|
log_parse_environment();
|
|
|
|
log_open();
|
|
|
|
|
|
|
|
r = parse_argv(argc, argv);
|
|
|
|
if (r < 0)
|
|
|
|
goto finish;
|
|
|
|
else if (r == 0) {
|
|
|
|
retval = EXIT_SUCCESS;
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (arg_transport == TRANSPORT_NORMAL)
|
|
|
|
bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
|
|
|
|
else if (arg_transport == TRANSPORT_POLKIT)
|
|
|
|
bus_connect_system_polkit(&bus, &error);
|
|
|
|
else if (arg_transport == TRANSPORT_SSH)
|
|
|
|
bus_connect_system_ssh(NULL, arg_host, &bus, &error);
|
|
|
|
else
|
|
|
|
assert_not_reached("Uh, invalid transport...");
|
|
|
|
|
|
|
|
r = machinectl_main(bus, argc, argv, &error);
|
|
|
|
retval = r < 0 ? EXIT_FAILURE : r;
|
|
|
|
|
|
|
|
finish:
|
|
|
|
if (bus) {
|
|
|
|
dbus_connection_flush(bus);
|
|
|
|
dbus_connection_close(bus);
|
|
|
|
dbus_connection_unref(bus);
|
|
|
|
}
|
|
|
|
|
|
|
|
dbus_error_free(&error);
|
|
|
|
dbus_shutdown();
|
|
|
|
|
|
|
|
strv_free(arg_property);
|
|
|
|
|
|
|
|
pager_close();
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|