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-rw-r--r--src/manager.c82
-rw-r--r--src/manager.h12
-rw-r--r--src/missing.h8
-rw-r--r--src/unit.c26
-rw-r--r--src/update-utmp.c410
-rw-r--r--src/utmp-wtmp.c6
6 files changed, 465 insertions, 79 deletions
diff --git a/src/manager.c b/src/manager.c
index ddb253ae4e..25eb4e70be 100644
--- a/src/manager.c
+++ b/src/manager.c
@@ -37,6 +37,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
+#include <libaudit.h>
#include "manager.h"
#include "hashmap.h"
@@ -202,6 +203,10 @@ int manager_new(ManagerRunningAs running_as, Manager **_m) {
m->exit_code = _MANAGER_EXIT_CODE_INVALID;
m->pin_cgroupfs_fd = -1;
+#ifdef HAVE_AUDIT
+ m->audit_fd = -1;
+#endif
+
m->signal_watch.fd = m->mount_watch.fd = m->udev_watch.fd = m->epoll_fd = m->dev_autofs_fd = -1;
m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
@@ -245,6 +250,9 @@ int manager_new(ManagerRunningAs running_as, Manager **_m) {
if ((r = bus_init(m)) < 0)
goto fail;
+ if ((m->audit_fd = audit_open()) < 0)
+ log_error("Failed to connect to audit log: %m");
+
*_m = m;
return 0;
@@ -429,6 +437,11 @@ void manager_free(Manager *m) {
if (m->notify_watch.fd >= 0)
close_nointr_nofail(m->notify_watch.fd);
+#ifdef HAVE_AUDIT
+ if (m->audit_fd >= 0)
+ audit_close(m->audit_fd);
+#endif
+
free(m->notify_socket);
lookup_paths_free(&m->lookup_paths);
@@ -567,10 +580,6 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
m->n_deserializing --;
}
- /* Now that the initial devices are available, let's see if we
- * can write the utmp file */
- manager_write_utmp_reboot(m);
-
return r;
}
@@ -2234,70 +2243,25 @@ int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
return 0;
}
-static bool manager_utmp_good(Manager *m) {
- int r;
-
- assert(m);
-
- if ((r = mount_path_is_mounted(m, _PATH_UTMPX)) <= 0) {
-
- if (r < 0)
- log_warning("Failed to determine whether " _PATH_UTMPX " is mounted: %s", strerror(-r));
-
- return false;
- }
-
- return true;
-}
-
-void manager_write_utmp_reboot(Manager *m) {
- int r;
-
- assert(m);
-
- if (m->utmp_reboot_written)
- return;
+void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
- if (m->running_as != MANAGER_SYSTEM)
- return;
+#ifdef HAVE_AUDIT
+ char *p;
- if (!manager_utmp_good(m))
+ if (m->audit_fd < 0)
return;
- if ((r = utmp_put_reboot(m->startup_timestamp.realtime)) < 0) {
-
- if (r != -ENOENT && r != -EROFS)
- log_warning("Failed to write utmp/wtmp: %s", strerror(-r));
-
+ if (!(p = unit_name_to_prefix_and_instance(u->meta.id))) {
+ log_error("Failed to allocate unit name for audit message: %s", strerror(ENOMEM));
return;
}
- m->utmp_reboot_written = true;
-}
-
-void manager_write_utmp_runlevel(Manager *m, Unit *u) {
- int runlevel, r;
-
- assert(m);
- assert(u);
-
- if (u->meta.type != UNIT_TARGET)
- return;
+ if (audit_log_user_comm_message(m->audit_fd, type, "", p, NULL, NULL, NULL, success) < 0)
+ log_error("Failed to send audit message: %m");
- if (m->running_as != MANAGER_SYSTEM)
- return;
-
- if (!manager_utmp_good(m))
- return;
+ free(p);
+#endif
- if ((runlevel = target_get_runlevel(TARGET(u))) <= 0)
- return;
-
- if ((r = utmp_put_runlevel(0, runlevel, 0)) < 0) {
-
- if (r != -ENOENT && r != -EROFS)
- log_warning("Failed to write utmp/wtmp: %s", strerror(-r));
- }
}
void manager_dispatch_bus_name_owner_changed(
diff --git a/src/manager.h b/src/manager.h
index a762dbc7c3..c1f787f854 100644
--- a/src/manager.h
+++ b/src/manager.h
@@ -185,6 +185,11 @@ struct Manager {
* file system */
int pin_cgroupfs_fd;
+ /* Audit fd */
+#ifdef HAVE_AUDIT
+ int audit_fd;
+#endif
+
/* Flags */
ManagerRunningAs running_as;
ManagerExitCode exit_code:4;
@@ -193,8 +198,6 @@ struct Manager {
bool dispatching_run_queue:1;
bool dispatching_dbus_queue:1;
- bool utmp_reboot_written:1;
-
int n_deserializing;
bool show_status;
@@ -234,9 +237,6 @@ unsigned manager_dispatch_dbus_queue(Manager *m);
int manager_loop(Manager *m);
-void manager_write_utmp_reboot(Manager *m);
-void manager_write_utmp_runlevel(Manager *m, Unit *t);
-
void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner);
void manager_dispatch_bus_query_pid_done(Manager *m, const char *name, pid_t pid);
@@ -251,6 +251,8 @@ bool manager_is_booting_or_shutting_down(Manager *m);
void manager_reset_maintenance(Manager *m);
+void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success);
+
const char *manager_running_as_to_string(ManagerRunningAs i);
ManagerRunningAs manager_running_as_from_string(const char *s);
diff --git a/src/missing.h b/src/missing.h
index 5914b01a8e..d6114cc2b2 100644
--- a/src/missing.h
+++ b/src/missing.h
@@ -63,4 +63,12 @@ static inline int pivot_root(const char *new_root, const char *put_old) {
/* static void nss_disable_nscd(void) _weakref_(__nss_disable_nscd); */
+#ifndef AUDIT_SERVICE_START
+#define AUDIT_SERVICE_START 1130 /* Service (daemon) start */
+#endif
+
+#ifndef AUDIT_SERVICE_STOP
+#define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */
+#endif
+
#endif
diff --git a/src/unit.c b/src/unit.c
index 9ccf7a4653..3c4bdec981 100644
--- a/src/unit.c
+++ b/src/unit.c
@@ -41,6 +41,7 @@
#include "dbus-unit.h"
#include "special.h"
#include "cgroup-util.h"
+#include "missing.h"
const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = &service_vtable,
@@ -1094,12 +1095,11 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns) {
/* Some names are special */
if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
- if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) {
+ if (unit_has_name(u, SPECIAL_DBUS_SERVICE))
/* The bus just might have become available,
* hence try to connect to it, if we aren't
* yet connected. */
bus_init(u->meta.manager);
- }
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
/* The syslog daemon just might have become
@@ -1107,17 +1107,12 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns) {
* we aren't yet connected. */
log_open();
- if (u->meta.type == UNIT_MOUNT)
- /* Another directory became available, let's
- * check if that is enough to write our utmp
- * entry. */
- manager_write_utmp_reboot(u->meta.manager);
-
- if (u->meta.type == UNIT_TARGET)
- /* A target got activated, maybe this is a runlevel? */
- manager_write_utmp_runlevel(u->meta.manager, u);
+ if (u->meta.type == UNIT_SERVICE &&
+ !UNIT_IS_ACTIVE_OR_RELOADING(os))
+ /* Write audit record if we have just finished starting up */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_START, 1);
- } else if (!UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
+ } else {
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
/* The syslog daemon might just have
@@ -1127,6 +1122,13 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns) {
/* We don't care about D-Bus here, since we'll get an
* asynchronous notification for it anyway. */
+
+ if (u->meta.type == UNIT_SERVICE &&
+ UNIT_IS_INACTIVE_OR_MAINTENANCE(ns) &&
+ !UNIT_IS_INACTIVE_OR_MAINTENANCE(os))
+
+ /* Write audit record if we have just finished shutting down */
+ manager_send_unit_audit(u->meta.manager, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE);
}
/* Maybe we finished startup and are now ready for being
diff --git a/src/update-utmp.c b/src/update-utmp.c
new file mode 100644
index 0000000000..e64a819aa4
--- /dev/null
+++ b/src/update-utmp.c
@@ -0,0 +1,410 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+/***
+ 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 General Public License as published by
+ the Free Software Foundation; either version 2 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <libaudit.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <dbus/dbus.h>
+
+#include "log.h"
+#include "macro.h"
+#include "util.h"
+#include "special.h"
+#include "utmp-wtmp.h"
+#include "dbus-common.h"
+
+typedef struct Context {
+ DBusConnection *bus;
+#ifdef HAVE_AUDIT
+ int audit_fd;
+#endif
+} Context;
+
+static usec_t get_startup_time(Context *c) {
+ const char
+ *interface = "org.freedesktop.systemd1.Manager",
+ *property = "StartupTimestamp";
+
+ DBusError error;
+ usec_t t = 0;
+ DBusMessage *m = NULL, *reply = NULL;
+ DBusMessageIter iter, sub;
+
+ dbus_error_init(&error);
+
+ assert(c);
+
+ if (!(m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.DBus.Properties",
+ "Get"))) {
+ log_error("Could not allocate message.");
+ 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.");
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(c->bus, m, -1, &error))) {
+ log_error("Failed to send command: %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 (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT64) {
+ log_error("Failed to parse reply.");
+ goto finish;
+ }
+
+ dbus_message_iter_get_basic(&sub, &t);
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ 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 */
+ { '0', SPECIAL_POWEROFF_TARGET },
+ { '6', SPECIAL_REBOOT_TARGET },
+ { '5', SPECIAL_RUNLEVEL5_TARGET },
+ { '4', SPECIAL_RUNLEVEL4_TARGET },
+ { '3', SPECIAL_RUNLEVEL3_TARGET },
+ { '2', SPECIAL_RUNLEVEL2_TARGET },
+ { '1', SPECIAL_RESCUE_TARGET },
+ };
+ const char
+ *interface = "org.freedesktop.systemd1.Unit",
+ *property = "ActiveState";
+
+ DBusMessage *m = NULL, *reply = NULL;
+ int r = 0;
+ unsigned i;
+ DBusError error;
+
+ assert(c);
+
+ dbus_error_init(&error);
+
+ for (i = 0; i < ELEMENTSOF(table); i++) {
+ const char *path = NULL, *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, &table[i].special,
+ DBUS_TYPE_INVALID)) {
+ log_error("Could not append arguments to message.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(c->bus, m, -1, &error))) {
+ dbus_error_free(&error);
+ 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(c->bus, m, -1, &error))) {
+ log_error("Failed to send command: %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 (streq(state, "active") || streq(state, "reloading"))
+ r = table[i].runlevel;
+
+ dbus_message_unref(m);
+ dbus_message_unref(reply);
+ m = reply = NULL;
+
+ if (r)
+ break;
+ }
+
+finish:
+ if (m)
+ dbus_message_unref(m);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ dbus_error_free(&error);
+
+ return r;
+}
+
+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_message(c->audit_fd, AUDIT_SYSTEM_BOOT, "", NULL, NULL, NULL, 1) < 0) {
+ log_error("Failed to send audit message: %m");
+ r = -errno;
+ }
+#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);
+
+ if ((q = utmp_put_reboot(t)) < 0) {
+ log_error("Failed to write utmp record: %s", strerror(-q));
+ 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_message(c->audit_fd, AUDIT_SYSTEM_SHUTDOWN, "", NULL, NULL, NULL, 1) < 0) {
+ log_error("Failed to send audit message: %m");
+ r = -errno;
+ }
+#endif
+
+ if ((q = utmp_put_shutdown(0)) < 0) {
+ log_error("Failed to write utmp record: %s", strerror(-q));
+ 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 */
+ if ((q = utmp_get_runlevel(&previous, NULL)) < 0) {
+
+ if (q != -ESRCH && q != -ENOENT) {
+ log_error("Failed to get current runlevel: %s", strerror(-q));
+ return q;
+ }
+
+ /* Hmm, we didn't find any runlevel, that means we
+ * have been rebooted */
+ r = on_reboot(c);
+ previous = 0;
+ }
+
+ /* Second get new runlevel */
+ if ((runlevel = get_current_runlevel(c)) < 0)
+ return runlevel;
+
+ if (previous == runlevel)
+ return 0;
+
+#ifdef HAVE_AUDIT
+ if (c->audit_fd >= 0) {
+ char *s = NULL;
+
+ if (asprintf(&s, "old-level=%c new-level=%c", previous, runlevel) < 0)
+ return -ENOMEM;
+
+ if (audit_log_user_message(c->audit_fd, AUDIT_SYSTEM_RUNLEVEL, s, NULL, NULL, NULL, 1) < 0) {
+ log_error("Failed to send audit message: %m");
+ r = -errno;
+ }
+
+ free(s);
+ }
+#endif
+
+ if ((q = utmp_put_runlevel(0, runlevel, previous)) < 0) {
+ log_error("Failed to write utmp record: %s", strerror(-q));
+ r = q;
+ }
+
+ return r;
+}
+
+int main(int argc, char *argv[]) {
+ int r;
+ DBusError error;
+ Context c;
+
+ dbus_error_init(&error);
+
+ zero(c);
+#ifdef HAVE_AUDIT
+ c.audit_fd = -1;
+#endif
+
+ /* if (getppid() != 1) { */
+ /* log_error("This program should be invoked by init only."); */
+ /* return 1; */
+ /* } */
+
+ if (argc != 2) {
+ log_error("This program requires one argument.");
+ return 1;
+ }
+
+ log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
+ log_parse_environment();
+
+#ifdef HAVE_AUDIT
+ if ((c.audit_fd = audit_open()) < 0)
+ log_error("Failed to connect to audit log: %m");
+#endif
+
+ if (bus_connect(DBUS_BUS_SYSTEM, &c.bus, NULL, &error) < 0) {
+ log_error("Failed to get D-Bus connection: %s", error.message);
+ r = -EIO;
+ goto finish;
+ }
+
+ log_info("systemd-update-utmp running as pid %lu", (unsigned long) 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_info("systemd-update-utmp stopped as pid %lu", (unsigned long) getpid());
+finish:
+
+#ifdef HAVE_AUDIT
+ if (c.audit_fd >= 0)
+ audit_close(c.audit_fd);
+#endif
+
+ if (c.bus) {
+ dbus_connection_close(c.bus);
+ dbus_connection_unref(c.bus);
+ }
+
+ dbus_error_free(&error);
+ dbus_shutdown();
+
+ return r < 0 ? 1 : 0;
+}
diff --git a/src/utmp-wtmp.c b/src/utmp-wtmp.c
index 45da79c681..46dfba336a 100644
--- a/src/utmp-wtmp.c
+++ b/src/utmp-wtmp.c
@@ -202,11 +202,11 @@ int utmp_put_runlevel(usec_t t, int runlevel, int previous) {
previous = 0;
}
-
- if (previous == runlevel)
- return 0;
}
+ if (previous == runlevel)
+ return 0;
+
init_entry(&store, t);
store.ut_type = RUN_LVL;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-14 18:27:03 +0000