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l---------src/grp-initprogs/systemd-update-utmp/GNUmakefile1
-rw-r--r--src/grp-initprogs/systemd-update-utmp/Makefile41
-rw-r--r--src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in21
-rw-r--r--src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml76
-rw-r--r--src/grp-initprogs/systemd-update-utmp/update-utmp.c284
5 files changed, 423 insertions, 0 deletions
diff --git a/src/grp-initprogs/systemd-update-utmp/GNUmakefile b/src/grp-initprogs/systemd-update-utmp/GNUmakefile
new file mode 120000
index 0000000000..95e5924740
--- /dev/null
+++ b/src/grp-initprogs/systemd-update-utmp/GNUmakefile
@@ -0,0 +1 @@
+../../../GNUmakefile \ No newline at end of file
diff --git a/src/grp-initprogs/systemd-update-utmp/Makefile b/src/grp-initprogs/systemd-update-utmp/Makefile
new file mode 100644
index 0000000000..506e4840a5
--- /dev/null
+++ b/src/grp-initprogs/systemd-update-utmp/Makefile
@@ -0,0 +1,41 @@
+# -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2010-2012 Lennart Poettering
+# Copyright 2010-2012 Kay Sievers
+# Copyright 2013 Zbigniew Jędrzejewski-Szmek
+# Copyright 2013 David Strauss
+# Copyright 2016 Luke Shumaker
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+ifneq ($(HAVE_UTMP),)
+rootlibexec_PROGRAMS += \
+ systemd-update-utmp
+endif # HAVE_UTMP
+
+systemd_update_utmp_SOURCES = \
+ src/update-utmp/update-utmp.c
+
+systemd_update_utmp_CFLAGS = \
+ $(AUDIT_CFLAGS)
+
+systemd_update_utmp_LDADD = \
+ libsystemd-shared.la \
+ $(AUDIT_LIBS)
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in
new file mode 100644
index 0000000000..163eccd91f
--- /dev/null
+++ b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in
@@ -0,0 +1,21 @@
+# This file is part of systemd.
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+
+[Unit]
+Description=Update UTMP about System Boot/Shutdown
+Documentation=man:systemd-update-utmp.service(8) man:utmp(5)
+DefaultDependencies=no
+RequiresMountsFor=/var/log/wtmp
+Conflicts=shutdown.target
+After=systemd-remount-fs.service systemd-tmpfiles-setup.service auditd.service
+Before=sysinit.target shutdown.target
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=@rootlibexecdir@/systemd-update-utmp reboot
+ExecStop=@rootlibexecdir@/systemd-update-utmp shutdown
diff --git a/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml
new file mode 100644
index 0000000000..c8a9cb7c90
--- /dev/null
+++ b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml
@@ -0,0 +1,76 @@
+<?xml version="1.0"?>
+<!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+<refentry id="systemd-update-utmp.service" conditional="HAVE_UTMP">
+
+ <refentryinfo>
+ <title>systemd-update-utmp.service</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>systemd-update-utmp.service</refentrytitle>
+ <manvolnum>8</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>systemd-update-utmp.service</refname>
+ <refname>systemd-update-utmp-runlevel.service</refname>
+ <refname>systemd-update-utmp</refname>
+ <refpurpose>Write audit and utmp updates at bootup, runlevel
+ changes and shutdown</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <para><filename>systemd-update-utmp.service</filename></para>
+ <para><filename>systemd-update-utmp-runlevel.service</filename></para>
+ <para><filename>/usr/lib/systemd/systemd-update-utmp</filename></para>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>systemd-update-utmp-runlevel.service</filename> is
+ a service that writes SysV runlevel changes to utmp and wtmp, as
+ well as the audit logs, as they occur.
+ <filename>systemd-update-utmp.service</filename> does the same for
+ system reboots and shutdown requests.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>utmp</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>auditd</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/grp-initprogs/systemd-update-utmp/update-utmp.c b/src/grp-initprogs/systemd-update-utmp/update-utmp.c
new file mode 100644
index 0000000000..8f622caa64
--- /dev/null
+++ b/src/grp-initprogs/systemd-update-utmp/update-utmp.c
@@ -0,0 +1,284 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifdef HAVE_AUDIT
+#include <libaudit.h>
+#endif
+
+#include <systemd/sd-bus.h>
+
+#include "sd-bus/bus-error.h"
+#include "sd-bus/bus-util.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/formats-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/special.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/utmp-wtmp.h"
+
+typedef struct Context {
+ sd_bus *bus;
+#ifdef HAVE_AUDIT
+ int audit_fd;
+#endif
+} Context;
+
+static usec_t get_startup_time(Context *c) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ usec_t t = 0;
+ int r;
+
+ assert(c);
+
+ r = sd_bus_get_property_trivial(
+ c->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "UserspaceTimestamp",
+ &error,
+ 't', &t);
+ if (r < 0) {
+ log_error_errno(r, "Failed to get timestamp: %s", bus_error_message(&error, r));
+ return 0;
+ }
+
+ return t;
+}
+
+static int get_current_runlevel(Context *c) {
+ static const struct {
+ const int runlevel;
+ const char *special;
+ } table[] = {
+ /* The first target of this list that is active or has
+ * a job scheduled wins. We prefer runlevels 5 and 3
+ * here over the others, since these are the main
+ * runlevels used on Fedora. It might make sense to
+ * change the order on some distributions. */
+ { '5', SPECIAL_GRAPHICAL_TARGET },
+ { '3', SPECIAL_MULTI_USER_TARGET },
+ { '1', SPECIAL_RESCUE_TARGET },
+ };
+
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ int r;
+ unsigned i;
+
+ assert(c);
+
+ for (i = 0; i < ELEMENTSOF(table); i++) {
+ _cleanup_free_ char *state = NULL, *path = NULL;
+
+ path = unit_dbus_path_from_name(table[i].special);
+ if (!path)
+ return log_oom();
+
+ r = sd_bus_get_property_string(
+ c->bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.systemd1.Unit",
+ "ActiveState",
+ &error,
+ &state);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to get state: %s", bus_error_message(&error, r));
+
+ if (STR_IN_SET(state, "active", "reloading"))
+ return table[i].runlevel;
+ }
+
+ return 0;
+}
+
+static int on_reboot(Context *c) {
+ int r = 0, q;
+ usec_t t;
+
+ assert(c);
+
+ /* We finished start-up, so let's write the utmp
+ * record and send the audit msg */
+
+#ifdef HAVE_AUDIT
+ if (c->audit_fd >= 0)
+ if (audit_log_user_comm_message(c->audit_fd, AUDIT_SYSTEM_BOOT, "", "systemd-update-utmp", NULL, NULL, NULL, 1) < 0 &&
+ errno != EPERM) {
+ r = log_error_errno(errno, "Failed to send audit message: %m");
+ }
+#endif
+
+ /* If this call fails it will return 0, which
+ * utmp_put_reboot() will then fix to the current time */
+ t = get_startup_time(c);
+
+ q = utmp_put_reboot(t);
+ if (q < 0) {
+ log_error_errno(q, "Failed to write utmp record: %m");
+ r = q;
+ }
+
+ return r;
+}
+
+static int on_shutdown(Context *c) {
+ int r = 0, q;
+
+ assert(c);
+
+ /* We started shut-down, so let's write the utmp
+ * record and send the audit msg */
+
+#ifdef HAVE_AUDIT
+ if (c->audit_fd >= 0)
+ if (audit_log_user_comm_message(c->audit_fd, AUDIT_SYSTEM_SHUTDOWN, "", "systemd-update-utmp", NULL, NULL, NULL, 1) < 0 &&
+ errno != EPERM) {
+ r = log_error_errno(errno, "Failed to send audit message: %m");
+ }
+#endif
+
+ q = utmp_put_shutdown();
+ if (q < 0) {
+ log_error_errno(q, "Failed to write utmp record: %m");
+ r = q;
+ }
+
+ return r;
+}
+
+static int on_runlevel(Context *c) {
+ int r = 0, q, previous, runlevel;
+
+ assert(c);
+
+ /* We finished changing runlevel, so let's write the
+ * utmp record and send the audit msg */
+
+ /* First, get last runlevel */
+ q = utmp_get_runlevel(&previous, NULL);
+
+ if (q < 0) {
+ if (q != -ESRCH && q != -ENOENT)
+ return log_error_errno(q, "Failed to get current runlevel: %m");
+
+ previous = 0;
+ }
+
+ /* Secondly, get new runlevel */
+ runlevel = get_current_runlevel(c);
+
+ if (runlevel < 0)
+ return runlevel;
+
+ if (previous == runlevel)
+ return 0;
+
+#ifdef HAVE_AUDIT
+ if (c->audit_fd >= 0) {
+ _cleanup_free_ char *s = NULL;
+
+ if (asprintf(&s, "old-level=%c new-level=%c",
+ previous > 0 ? previous : 'N',
+ runlevel > 0 ? runlevel : 'N') < 0)
+ return log_oom();
+
+ if (audit_log_user_comm_message(c->audit_fd, AUDIT_SYSTEM_RUNLEVEL, s, "systemd-update-utmp", NULL, NULL, NULL, 1) < 0 && errno != EPERM)
+ r = log_error_errno(errno, "Failed to send audit message: %m");
+ }
+#endif
+
+ q = utmp_put_runlevel(runlevel, previous);
+ if (q < 0 && q != -ESRCH && q != -ENOENT) {
+ log_error_errno(q, "Failed to write utmp record: %m");
+ r = q;
+ }
+
+ return r;
+}
+
+int main(int argc, char *argv[]) {
+ Context c = {
+#ifdef HAVE_AUDIT
+ .audit_fd = -1
+#endif
+ };
+ int r;
+
+ if (getppid() != 1) {
+ log_error("This program should be invoked by init only.");
+ return EXIT_FAILURE;
+ }
+
+ if (argc != 2) {
+ log_error("This program requires one argument.");
+ return EXIT_FAILURE;
+ }
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+#ifdef HAVE_AUDIT
+ /* If the kernel lacks netlink or audit support,
+ * don't worry about it. */
+ c.audit_fd = audit_open();
+ if (c.audit_fd < 0 && errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT)
+ log_error_errno(errno, "Failed to connect to audit log: %m");
+#endif
+ r = bus_connect_system_systemd(&c.bus);
+ if (r < 0) {
+ log_error_errno(r, "Failed to get D-Bus connection: %m");
+ r = -EIO;
+ goto finish;
+ }
+
+ log_debug("systemd-update-utmp running as pid "PID_FMT, getpid());
+
+ if (streq(argv[1], "reboot"))
+ r = on_reboot(&c);
+ else if (streq(argv[1], "shutdown"))
+ r = on_shutdown(&c);
+ else if (streq(argv[1], "runlevel"))
+ r = on_runlevel(&c);
+ else {
+ log_error("Unknown command %s", argv[1]);
+ r = -EINVAL;
+ }
+
+ log_debug("systemd-update-utmp stopped as pid "PID_FMT, getpid());
+
+finish:
+#ifdef HAVE_AUDIT
+ if (c.audit_fd >= 0)
+ audit_close(c.audit_fd);
+#endif
+
+ sd_bus_flush_close_unref(c.bus);
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}